JP4379456B2 - Display screen support mechanism - Google Patents

Description

  The present invention relates to a display screen support mechanism, and more particularly to a display screen support mechanism including a pedestal side support member for rotatably supporting a display screen support member.

  Conventionally, a display screen support mechanism including a pedestal side support member for rotatably supporting a display screen support member is known (for example, see Patent Documents 1 to 3).

  Patent Document 1 discloses a friction hinge including a round shaft, a bracket attached to the round shaft, and a friction mechanism provided between the shaft and the bracket. A tilting device is disclosed. In the tilting device disclosed in Patent Document 1, the friction mechanism includes a rotary friction washer that is fitted on the bracket side and rotates integrally with the bracket, and a second fixed friction washer that is engaged and fixed on the shaft side. -Are provided in pressure contact with each other, and a pair of wide notches and narrow notches are formed on the outer periphery of the rotary friction washer at positions facing each other at intervals of 180 degrees. The second fixed friction washer is provided with a projecting piece having a pair of friction convex portions at a position where the second fixed friction washer is fitted into a notch portion formed in the rotary friction washer. In the tilting device described in Patent Document 1, when the monitor television is used, the convex portion of the second fixed friction washer is located in the wide notch of the rotary friction washer, so that the normal friction torque is used. Is generated and the display device is stopped and held by a normal friction torque. When the monitor TV is packed, the convex portion of the second fixed friction washer is detached from the wide notch of the rotating friction washer by tilting the display device rearward, and the friction generated in the friction washer is generated. When the display device is in a horizontal state with respect to the pedestal, a strong friction torque is generated between the second fixed friction washer and the width of the rotating friction washer. It is configured to be able to stop by being inserted into a narrow notch.

  Further, in Patent Document 2, a main body, a pedestal, a pair of support portions disposed so as to sandwich the main body between the upper surfaces of the pedestal, and both side surfaces of the main body are rotatably connected to the pair of support portions. A thin image display device having a round shaft-like rotating shaft is disclosed. A gear having the same rotation center as that of the rotation shaft is attached to at least one of the rotation shafts of the thin image display device according to Patent Document 2, and a protrusion having a stopper fitted to the gears is attached to the support portion. The protrusion is kept in a pressurized state by a spring. In the thin image display device described in Patent Document 2, when the spring is deformed and moved by applying a pressing force to the protrusion, the stopper is pushed in conjunction with the protrusion, thereby fitting the stopper and the gear. Is released, and the main body becomes rotatable about the rotating shaft. When the pressing force applied to the projection is removed at a position where the elevation angle of the main body is tilted to an arbitrary angle, the stopper returns to the position where it engages with the gear by the restoring force of the spring, so that the elevation angle of the main body is fixed. It is configured.

  Further, in Patent Document 3, a rotation support portion including a mounting bracket, a round shaft-shaped rotation shaft, a washer group, and an operating force assist spring, and a rotation range of the rotation support portion are suppressed. A stopper, a display screen, a support column, a connecting portion for connecting the display screen and the support column, and a stand base, the stopper includes notches spaced at a predetermined angle at both ends, and a rotation support portion A flat display device is disclosed in which the rotation support portion is rotated only within a predetermined notch range by disposing the protruding piece in the notch of the stopper. In the flat display device described in Patent Document 3, the operating force assist spring is positioned when the display screen is in the most upward state, so that the normal position of the operating force assist is set. In this state, no force is applied to the operating force assist spring. If the display screen with the display screen facing upward is inclined in the downward direction, the elastic force is stored because the operating force assist spring operates in a direction contracting from the steady state. If the display screen is tilted upward, the urging force based on the elastic energy stored in the operating force assist spring acts in the direction that assists the operation, so that the display portion is not cut out without any burden. It is comprised so that it can be rotated.

JP 2004-229106 A Japanese Utility Model Publication No. 07-020770 Japanese Patent Laid-Open No. 2004-312188

  However, since the display screen support mechanism (tilting device) described in Patent Document 1 uses a round shaft-like rotation shaft, a round shaft-like rotation shaft is used in order to prevent axial displacement. There is a problem that it is necessary to thread the tip of the shaft, and as a result, the processing of the rotating shaft becomes complicated. Further, the display screen support mechanism described in Patent Document 1 includes a member that restricts the movement of the display device when a force is applied in a direction in which the display device is tilted backward from the state in which the monitor television is used. However, since it is only held by the friction torque, there is a problem that the display device may be tilted in the horizontal direction due to an unexpected impact or a user's operation mistake even during normal use.

  In addition, the display screen support mechanism (thin image display device) described in Patent Document 2 uses a round shaft-like rotation shaft, and thus is not shown in the figure. In order to prevent the displacement of the direction, it is necessary to perform groove processing for mounting a retaining member such as a C-ring along the outer periphery of the round shaft. There is a problem that it becomes complicated. Further, in the display screen support mechanism described in Patent Document 2, since the main body is held by fitting the stopper and the gear, when moving to a predetermined rotation range, the stopper and the gear are moved once each time. There is also a problem that it is necessary to release the fitting.

  In addition, since the display screen support mechanism (rotation support portion) described in Patent Document 3 uses a round shaft-like rotation shaft, it prevents axial displacement of the round shaft-like rotation shaft. In addition, there is a problem in that a round shaft-like rotary shaft is processed into a stepped shape, and as a result, the processing of the rotary shaft becomes complicated. In the display screen instruction mechanism described in Patent Document 3, the display screen can be rotated within the notch range due to the notch of the stopper, while the display screen is tilted beyond the notch range during transportation. There is a problem that it is difficult to rotate it in the horizontal direction.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and one object of the present invention is to use the display screen portion in the horizontal direction without using a round shaft and during transportation. It is possible to provide a display screen support mechanism that can be tilted to a predetermined rotational range that does not reach the horizontal direction during normal use.

Means for Solving the Problems and Effects of the Invention

  A display screen support mechanism according to a first aspect of the present invention includes a display screen support member that supports a display screen unit, and a pedestal side support member that rotatably supports the display screen support member. In the support mechanism, a plate-shaped sheet metal support shaft for relatively rotating the display screen support member and the pedestal side support member, and the display screen of the screen support member is attached to the support shaft in a deregulated state. The display screen mounting portion to which the display screen is attached can be rotated to an angle that is in the horizontal direction, and in a restricted state, the display screen support member of the display screen support member is not rotated to an angle that is in the horizontal direction. A rotation range restriction member for restricting the rotation range to a predetermined rotation range; and a spring member for biasing the rotation range restriction member in a direction for restricting the rotation range. Base support The material includes a contact portion that restricts the movement range of the display screen support member by contacting the rotation range restriction member, and the contact portion is a notch-shaped or hole-shaped first portion provided in the display screen support member. 1 abutting portion and a notch-shaped or hole-shaped second abutting portion provided in the pedestal side support member, and the rotating portion of the display screen support member is for inserting a plate-shaped support shaft , Having a fan-shaped first hole portion arranged so that the root portion on the circular center side is located on the upper side, and the pedestal side support member has a base on the circular core side for inserting a plate-like support shaft The fan-shaped second hole is arranged so that the portion is positioned on the lower side, and is supported when the display screen is rotated upward in a direction in which the rotation range restricting member is deregulated. The shaft and the display screen support member are integrated with each other within the angle range of the second hole portion with the base portion of the second hole portion of the base support member as the center. The display screen support member is attached to the display screen portion by rotating and then rotating within the angular range of the first hole portion around the root portion of the first hole portion of the display screen support member. The screen mounting portion can be rotated to an angle that is in the horizontal direction. When the display screen portion is rotated downward, the display screen portion is brought into contact with the first hole portion and the plate-like support shaft. Is configured to be suppressed from tilting downward from a predetermined angle.

  In the display screen support mechanism according to the first aspect, as described above, the plate-shaped support shaft can be used as the rotation shaft by providing the plate-shaped support shaft formed in a plate shape. In this case, the plate-shaped support shaft made of sheet metal can be easily drilled or shaped by press working, so that the groove shaft or Unlike the case where the step machining is performed, the machining of the rotating shaft is not complicated. In addition, in the restriction release state, the display screen attachment portion for attaching the display screen portion of the display screen support member can be rotated to an angle that becomes the horizontal direction, and in the restriction state, the display screen attachment portion of the display screen support member is in the horizontal direction. By attaching a rotation range restricting member to the support shaft that restricts the rotation range of the display screen support member to a predetermined rotation range so that it does not rotate to an angle of By releasing, the display screen mounting portion can be rotated to an angle that is in the horizontal direction, and during normal use, the display screen support member can be moved to the horizontal direction by setting the rotation range restriction member to a restricted state. It can be rotated in a predetermined rotation range that does not reach. Accordingly, it is possible to restrict the display screen from being tilted in the horizontal direction due to an unexpected impact or a user's operation mistake when using the display device. Further, even if the rotation range restricting member is in the restricted state, it can be freely rotated within the predetermined rotation range, so that the rotation range once once when rotating within the predetermined rotation range. There is no need to adjust the regulating member.

  Further, in the display screen support mechanism according to the first aspect, by configuring the rotation range restriction member to include a spring member for biasing the rotation range restriction member in the direction of restricting the rotation range, It is possible to always maintain a state in which the display screen unit is restricted from tilting in the horizontal direction. The display screen support member is provided with a notch-shaped or hole-shaped first contact portion, and the pedestal-side support member is provided with a notch-shaped or hole-shaped second contact portion, whereby the first contact portion. And it can control that a display screen part inclines to a horizontal direction stably by contact | abutting with a 2nd contact part and a rotation range control member. Further, the rotating portion of the display screen support member has a fan-shaped first hole portion arranged so that the root portion on the circular center side is positioned on the upper side in order to insert the plate-like support shaft. The pedestal-side support member is configured to have a fan-shaped second hole portion that is arranged so that the root portion on the circular center side is positioned on the lower side in order to insert the support shaft. When the screen portion is rotated upward, the support shaft and the display screen support member are integrated with each other within an angle range of the second hole portion with the base portion of the second hole portion of the pedestal side support member as the center. The display screen support member attaches the display screen portion by rotating and then rotating the support shaft within the angle range of the first hole portion around the root portion of the first hole portion of the display screen support member. By configuring the display screen mounting part so that it can be rotated to an angle that is in the horizontal direction, When using the lifting axis as a rotation axis is also the first hole and the second hole portion fan-shaped, can be easily rotated to an angle of the display screen mounting portion becomes horizontal. Further, when the display screen unit is rotated in a downward tilting direction, the first screen hole and the plate-like support shaft are brought into contact with each other, so that the display screen unit is prevented from tilting below a predetermined angle. By configuring in this way, it is possible to restrict the display device from falling down because the center of gravity of the display screen portion is excessively inclined in the downward direction.

  A display screen support mechanism according to a second aspect of the present invention includes a display screen support member including a rotation portion, a pedestal side support member for rotatably supporting the rotation portion of the display screen support member, and a display screen. A plate-shaped support shaft made of sheet metal for relatively rotating the support member and the pedestal side support member, and a display screen attachment that is attached to the support shaft and attaches the display screen portion of the screen support member in a deregulated state The display screen support member can be rotated to an angle that is horizontal, and in a restricted state, the rotation range of the display screen support member is set to a predetermined range so that the display screen mounting portion of the display screen support member does not rotate to an angle that is horizontal. A rotation range regulating member for regulating the rotation range.

  In the display screen support mechanism according to the second aspect, as described above, the plate-shaped support shaft can be used as the rotation shaft by providing the plate-shaped support shaft formed in a plate shape. In this case, the plate-shaped support shaft made of sheet metal can be easily drilled or shaped by press working, so that the groove shaft or Unlike the case where the step machining is performed, the machining of the rotating shaft is not complicated. In addition, in the restriction release state, the display screen attachment portion for attaching the display screen portion of the display screen support member can be rotated to an angle that becomes the horizontal direction, and in the restriction state, the display screen attachment portion of the display screen support member is in the horizontal direction. By attaching a rotation range restricting member to the support shaft that restricts the rotation range of the display screen support member to a predetermined rotation range so that it does not rotate to an angle of By releasing, the display screen mounting portion can be rotated to an angle that is in the horizontal direction, and during normal use, the display screen support member can be moved to the horizontal direction by setting the rotation range restriction member to a restricted state. It can be rotated in a predetermined rotation range that does not reach. Accordingly, it is possible to restrict the display screen unit from being tilted in the horizontal direction due to an unexpected impact or a user's operation mistake when using the display device. Further, even if the rotation range restricting member is in the restricted state, it can be freely rotated within the predetermined rotation range, so that the rotation range once once when rotating within the predetermined rotation range. There is no need to adjust the regulating member.

  The display screen support mechanism according to the second aspect preferably further includes a spring member for urging the rotation range restriction member in a direction to restrict the rotation range. If comprised in this way, the state which controls that a display screen part will always incline to a horizontal direction by the urging | biasing force of a spring member can be maintained.

  In the display screen support mechanism according to the second aspect, preferably, the display screen support member and the pedestal side support member have a contact portion that restricts the movement range of the display screen support member by contacting the rotation range restriction member. The contact portion includes a notch-shaped or hole-shaped first contact portion provided in the display screen support member, and a notch-shaped or hole-shaped second contact portion provided in the pedestal side support member. including. If comprised in this way, it can control that a display screen part inclines to a horizontal direction stably by contact | abutting with a 1st contact part and a 2nd contact part, and a rotation range control member.

  In the display screen support mechanism according to the second aspect, preferably, the rotation portion of the display screen support member is disposed such that the root portion on the circular center side is located on the upper side in order to insert the plate-like support shaft. The fan-shaped first hole portion is formed, and the pedestal-side support member is a fan-shaped member arranged so that the root portion on the circular center side is positioned on the lower side in order to insert the plate-shaped support shaft. The support shaft and the display screen support member have the second hole of the base support member when the display screen portion is rotated in the upward tilting direction in the release state of the rotation range restriction member having the second hole portion. The support portion is integrally rotated within the angle range of the second hole portion around the root portion of the display portion, and then the support portion has an angle of the first hole portion around the root portion of the first hole portion of the display screen support member. By rotating in the range, the display screen support member has the display screen mounting portion for mounting the display screen portion in the horizontal direction. It is rotatable through an angle. With this configuration, even when the plate-like support shaft is used as the rotation shaft, the angle at which the display screen mounting portion is easily in the horizontal direction by the fan-shaped first hole portion and the second hole portion. Can be rotated.

  In the display screen support mechanism according to the second aspect, preferably, the support shaft is configured such that the base portion of the first hole portion is in contact with the upper surface of the plate-like support shaft and the base portion of the second hole portion is a plate shape. By abutting the lower surface of the support shaft, the vertical load of the display screen portion is received by the root portion of the first hole portion and the root portion of the second hole portion. According to this structure, the plate-like support shaft is rotated by the root portion on the circular center side of the first hole portion and the root portion on the circular center side of the second hole portion when the display screen support member is rotated. Since the shift of the position of the moving center is suppressed, the display screen support member and the support shaft can be easily rotated within the fan-shaped angle range. Further, since the vertical load of the display screen unit is applied to the upper and lower ends of the plate-like support shaft, the rotation operation of the display screen unit can be stabilized.

  In the display screen support mechanism according to the second aspect, preferably, when the display screen portion is rotated in a downward tilting direction, the display screen portion is brought into contact with the first hole portion and the plate-like support shaft. It is comprised so that it may suppress tilting below a predetermined angle. If comprised in this way, it can control that a display apparatus falls down too much in the direction where the gravity center of a display screen part inclines below.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing an overall configuration of a liquid crystal display device provided with a display screen support mechanism according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which the display screen is removed from the liquid crystal display device according to the embodiment of the present invention shown in FIG. FIG. 3 is a perspective view of the display screen turning device showing a state in which the display screen unit and the display screen support mechanism are removed from the liquid crystal display device according to the embodiment of the present invention shown in FIG. 4 to 14 are views showing the detailed structure of the display screen support mechanism according to the embodiment of the present invention shown in FIG. First, the structure of a display screen support mechanism according to an embodiment of the present invention will be described with reference to FIGS.

  A display screen support mechanism 10 according to an embodiment of the present invention includes a display screen support member 11, a pair of pedestal side support members 12, and a plate-shaped support made of sheet metal, as shown in FIGS. The shafts 13 and 14, a sheet metal retaining member 15, a metal disc spring 16, a sheet metal press contact plates 17 and 18, and a plate member 19 that contacts the metal disc spring 16. . The pressure plates 17 and 18 are provided with rectangular holes 17a and 18a for inserting the support shafts 13 and 14, respectively. Further, the press contact plates 17 and 18 on the side where the support shaft 13 is inserted are provided with notches 17b and 18b for avoiding interference with a rotation range restricting member 20, which will be described later. Further, the plate member 19 is provided with a rectangular hole 19a for inserting the support shafts 13 and 14.

  Further, as shown in FIGS. 4 and 10, the display screen support member 11 includes a display screen portion attaching portion 11a and a pair of rotating portions 11b. Further, four screw insertion holes 11 c are provided in the display screen portion mounting portion 11 a of the display screen support member 11. Further, the pair of rotating portions 11b of the display screen support member 11 are provided so as to extend from both side ends of the display screen portion mounting portion 11a in a direction perpendicular to the surface of the display screen portion mounting portion 11a. Yes.

  Here, in the present embodiment, as shown in FIG. 10, fan-shaped first holes 11 d are provided in the vicinity of the rotation center portions of the pair of rotation portions 11 b of the display screen support member 11. Yes. As shown in FIG. 4, the fan-shaped first hole portion 11 d is provided for inserting plate-like support shafts 13 and 14. Further, as shown in FIG. 10, the fan-shaped first hole portion 11 d is arranged such that the root portion 11 e on the circular center side is located on the upper side, and the root portion 11 e on the circular core side is supported by the support shaft 13. And 14 are brought into contact with the upper surface of 14. Thereby, the base part 11e of the fan-shaped hole part 11d is configured to receive the vertical load of the display screen part 40 via the display screen support member 11. Further, as shown in FIGS. 9 and 10, the fan-shaped first hole 11d has a central angle of an angle α1 (45 degrees) that opens to one side from the vertical direction and a central angle of an angle β1 (5 degrees) that opens to the other side. And have. Further, the display screen support member 11 is fan-shaped with respect to the plate-like support shafts 13 and 14 around the root portion 11e of the fan-shaped first hole portion 11d supported by the plate-like support shafts 13 and 14. It is configured to be rotatable within the angular range of the shape (in this embodiment, α1 + β1 = 50 degrees). That is, the plate-like support shafts 13 and 14 made of sheet metal function as the rotation shaft of the display screen support member 11. Further, as shown in FIG. 4, a notch-shaped first contact portion 11f is provided on the side of the rotating portion 11b where the support shaft 13 is inserted, on the opposite side of the root portion 11e of the first hole portion 11d. It has been. The first contact portion 11f is a restriction portion of the rotation range restriction member 20 when a rotation range restriction member 20 described later is in a position (see FIG. 5) where the rotation range of the display screen support member 11 is restricted. It has a function of restricting the rotation range of the display screen support member 11 by coming into contact with 20a.

  Further, as shown in FIGS. 4 and 11, the pair of pedestal side support members 12 include a pedestal mounting portion 12 a and a rotating portion mounting portion 12 b, respectively. Moreover, the rotation part attachment part 12b of the base side support member 12 is provided so that it may extend in the orthogonal | vertical upper direction with respect to the surface of the base attachment part 12a from the one end part of the base attachment part 12a.

  Moreover, in this embodiment, the rotation part attachment part 12b of the base side support member 12 is provided with the fan-shaped 2nd hole part 12d. Further, the fan-shaped second hole 12d is provided for inserting the plate-like support shafts 13 and 14 as shown in FIG. The fan-shaped second hole portion 12d is disposed so that the root portion 12e on the circular center side is positioned on the lower side, and is in contact with the lower surfaces of the support shafts 13 and 14. Thereby, the root portion 12e of the fan-shaped second hole 12d is configured to receive the vertical load of the display screen portion 40 via the display screen support member 11 and the support shafts 13 and 14. That is, in the present embodiment, the vertical load of the display screen portion 40 is received by the base portion 11e of the first hole portion 11d of the display screen support member 11 and the root portion 12e of the second hole portion 12d of the pedestal side support member 12. It is configured as follows. Further, as shown in FIGS. 9 and 11, the fan-shaped second hole 12d has a central angle of an angle α2 (45 degrees) that opens to one side from the vertical direction and a central angle of an angle β2 (5 degrees) that opens to the other side. And have. The support shafts 13 and 14 have a fan-shaped angular range with respect to the pedestal-side support member 12 (in the present embodiment, α2 + β2) around the root portion 12e of the fan-shaped hole 12d of the pedestal-side support member 12. = 50 degrees). As shown in FIG. 4, a hole-like second contact portion 12f is provided below the root portion 12e of the second hole portion 12d on the side where the support shaft 13 of the pedestal side support member 12 is inserted. ing. The second contact portion 12f is a restriction portion of the rotation range restriction member 20 when a rotation range restriction member 20 described later is in a position (see FIG. 5) for restricting the rotation range of the display screen support member 11. It has a function of restricting the rotation range of the display screen support member 11 by coming into contact with 20a.

  Further, as shown in FIG. 4, the plate-like support shafts 13 and 14 made of sheet metal each include a pair of contact portions 13a and 14a and rectangular holes 13b and 14b. The pair of contact portions 13a and 14a of the support shafts 13 and 14 are provided so as to protrude from rear end portions of both side surfaces extending in the longitudinal direction (X direction) of the support shafts 13 and 14. As shown in FIGS. 2 and 4, the abutting portions 13 a and 14 a are provided to abut the pressure contact plate 17 that presses the display screen support member 11 side. Further, the rectangular holes 13 b and 14 b of the support shafts 13 and 14 are provided for inserting the retaining member 15.

  Also, as shown in FIG. 12, the sheet metal retaining member 15 is formed in a wedge shape, and has a chamfered portion 15b provided on one side surface 15a extending in the longitudinal direction (Y direction) and the longitudinal direction (Y direction). ) And a chamfered portion 15d provided on the other side surface 15c. The length L1 of the one side surface 15a of the retaining member 15 is provided to be shorter than the length L2 of the other side surface 15. Since the retaining member 15 is formed in a wedge shape in this way, the retaining member 15 is formed into rectangular holes 13a and 14a (provided on the plate-like support shafts 13 and 14 (see FIG. 2). When it is inserted into (see FIG. 4), it is prevented from falling off easily. Further, the chamfered portion 15b is provided to facilitate the insertion of the retaining member 15 into the rectangular holes 13a and 14a provided in the support shafts 13 and 14. Also,

  Here, in this embodiment, as shown in FIG. 4, the screw hole portion 13 c of the support portion 13 has an L-shaped rotation range having a restriction portion 20 a that restricts the rotation range of the display screen support member 11. The regulating member 20 is attached so as to be rotatable. Specifically, by inserting a stepped screw member 22 (see FIG. 13) into the hole 20b of the rotation range restriction member 20 and tightening the screw hole 13c of the support shaft 13, the rotation range restriction member 20 is The support shaft 13 is rotatably attached to the support shaft 13 with the screw hole 13c of the support shaft 13 as a central axis. The restricting portion 20a of the turning range restricting member 20 is provided on the side facing the pedestal support member 12 at one end in the longitudinal direction (Z direction) of the turning range restricting member 20 (see FIG. 7). . Further, a pressing portion 20c formed by bending is provided at the other end portion in the longitudinal direction (Z direction) of the rotation range restriction member 20 and can be pressed by a finger when the rotation range restriction member 20 is rotated. It has been.

  Further, as shown in FIG. 13, a stepped portion 22 a into which the coil portion 21 a of the torsion spring 21 is fitted is provided at the root of the screw portion of the stepped screw member 22. The outer diameter of the stepped portion 22a of the stepped screw member 22 is formed to be smaller than the inner diameter D1 (see FIG. 8) of the coil portion 21a of the torsion spring 21. In the present embodiment, the stepped screw member 22 is supported through the hole 20 b of the rotation range regulating member 20 in a state where the coil portion 21 a of the torsion spring 21 is fitted into the stepped portion 22 a of the stepped screw member 22. The shaft 13 is fastened to the screw hole 13c. As shown in FIG. 5, the rotation range regulating member 20 is always urged by a torsion spring 21 in a direction (arrow E direction in FIG. 5) that regulates the rotation range. The torsion spring 21 is an example of the “spring member” in the present invention.

  In this embodiment, as shown in FIG. 1, the display screen turning device 23 is provided to support the display screen support mechanism 10 that supports the display device 100. The display screen unit 40 of the display device 100 supported by the display screen support mechanism 10 is formed so as to be able to rotate in the horizontal direction (A direction and B direction) (for example, ± 45 degrees).

  Further, as shown in FIG. 3, the display screen turning device 23 includes a sheet metal base 24, a sheet metal turning member 25, metal pressing members 26 and 27, a plate member 28, and a retaining member 15. And a disc spring 16 and a plate member 19.

  Further, as shown in FIGS. 3 and 4, the upright portion 24 a integrally formed by cutting and raising the pedestal 24 in a state where the rotating member 25 is placed on a predetermined position of the pedestal 24 made of sheet metal, and Metal pressing members 26 and 27 are fitted into 24b through rectangular holes (not shown) provided in the pressing members 26 and 27, respectively. Further, at both end portions where the upright portion 24a is not formed on the upper side surface of the pedestal 24, a claw portion 24e formed integrally by cutting and raising is provided on one end portion side. The claw portion 24e is configured to guide when the rotating member 25 rotates. Further, at the other end opposite to the side where the claw portion 24e is provided, the rotating member 25 is rotated by a predetermined angle (for example, ± 45 degrees) in the horizontal direction (A direction and B direction in FIG. 1). At this time, a metal plate member 28 for restricting the rotation operation of the rotation member 25 is fixed by the screw member 50. The two disc springs 16 are configured to be fitted onto the pressing members 26 and 27, respectively, in a state where the two disc springs 16 are overlapped with each other in a convex direction. Further, the plate members 19 are fitted into the upper sides of the two disc springs 15 through the rectangular holes 19a of the plate member 19, and the retaining members 15 are provided in the upright portions 24a and 24b, respectively. It is inserted in the rectangular holes 24c and 24d. In this case, the retaining member 15 is inserted in a state where the two disc springs 16 are respectively pressed and bent by a predetermined pressing force. Accordingly, the rotating member 25 sandwiched between the pedestal 24 and the pressing members 26 and 27 is configured to be held rotatably in the horizontal direction.

  Further, as shown in FIG. 4, the rotation member 25 includes an attachment portion 25 b provided with four screw attachment holes 25 a for fixing the pedestal attachment portion 12 a of the pedestal side support member 12 with the screw member 50. Yes. The base-side support member 12 is attached to the rotary member 25 by tightening the screw member 50 into the four screw attachment holes 25a of the rotary member 25 via the four screw insertion holes 12c of the base attachment portion 12a. .

  Further, as shown in FIG. 1, the display screen unit 40 of the display device 100 is configured such that a display module 41 including a screen unit (not shown) is enclosed by a resin front cabinet 42 and a rear cabinet 43. Has been. Further, as shown in FIG. 14, the display module 41 of the display screen unit 40 has a screw member 50 fastened to a screw mounting hole (not shown) via the screw insertion hole 11 c of the display screen support member 11. The display screen support member 11 is attached. The rear cabinet 43 is integrally provided with a housing portion 43 a for covering and disposing the display screen support member 11.

  15 to 19 are cross-sectional views for explaining the rotation operation of the display screen support mechanism according to the embodiment of the present invention shown in FIG. With reference to FIGS. 5, 6, 9 and 14 to 19, the rotation operation of the display screen support mechanism according to the present embodiment will be described.

  First, the case where the display screen support mechanism 10 is rotated in the horizontal direction during conveyance will be described. In this case, as shown in FIGS. 5 and 6, when the user presses the pressing portion 20 c (see FIG. 7) of the rotation range restriction member 20 with a finger, the rotation range restriction member 20 is biased by the torsion spring 21. Against the direction of arrow F. As a result, the rotation range regulating member 20 is not engaged with the first contact portion 11f of the display screen support member 11 and the second contact portion 12f of the pedestal side support member 12, so that the display screen It will be in the regulation release state where the rotation range of the support member 11 is not regulated. And while maintaining this restriction release state, as shown in FIG. 14, the display screen support member 11 is supported by the display screen unit support member 11 from the state in which the display screen support member 11 is supported vertically with respect to the display screen turning device 23. Press the display screen section 40 in the direction of arrow C (the direction in which the display screen 40 faces upward). In this case, as shown in FIG. 9, the display screen support member 11 and the support shaft are supported while the base portion 11e of the fan-shaped first hole 11d of the display screen support member 11 and the upper surfaces of the support shafts 13 and 14 are in contact with each other. 13 and 14 start to rotate in the direction of arrow C around the root portion 12e of the fan-shaped second hole 12d of the pedestal side support member 12 as a center of rotation. When the display screen support member 11 and the support shafts 13 and 14 are rotated 45 degrees (angle α2 in FIG. 9) through the state of FIG. 15, as shown in FIG. The side surface comes into contact with one edge of the fan-shaped second hole portion 12 d of the pedestal side support member 12. In this state, when the user further presses the display screen portion 40 in the direction of arrow C, the display screen support member 11 is moved with respect to the support shafts 13 and 14 with the root portion 11e of the fan-shaped first hole portion 11d as the rotation center. The rotation in the direction of arrow D is continued. Then, when the display screen support member 11 is further rotated 45 degrees in the direction of arrow C (α1 in FIG. 9), as shown in FIG. While abutting on one edge of the first hole portion 11d having a shape, the rotation in the direction of arrow C is completed. As described above, in this embodiment, when the rotation range restriction member 20 is in the restriction release state, the display screen unit 40 shown in FIG. 14 is perpendicular to the display screen turning device 23 by the display screen support member 11. As shown in FIG. 17, the display screen 40 can be rotated by 90 degrees in the direction of arrow C until the display screen unit 40 becomes horizontal.

  In addition, when the display screen part 40 shown in FIG. 17 is rotated in the direction of arrow D from the state inclined to the horizontal direction, the state shown in FIG. As shown in FIG. 15, 20 a is automatically fitted into the second contact portion 12 f of the pedestal side support member by the urging force of the torsion spring 21 in the direction of arrow E (see FIG. 5). Engage with 12f to return to the rotation restricted state.

  Next, as shown in FIG. 5, during normal use, the pressing portion 20 c (see FIG. 7) of the rotation range restriction member 20 is not pressed, and the rotation range restriction member 20 is biased in the direction of arrow E. The rotation operation in a state where the rotation range of the display screen support member 11 is restricted (rotation restricted state) will be described. In this rotation restricted state, as shown in FIG. 14, the display screen support member 11 is supported by the display screen support member 11 from the state in which the display screen support member 11 is supported vertically with respect to the display screen turning device 23. When the user presses 40 in the direction of arrow C (the direction in which the display screen 40 faces upward), as shown in FIG. 15, the root portion 11e of the fan-shaped first hole 11d of the display screen support member 11 and the support shaft The display screen support member 11 and the support shafts 13 and 14 are integrally formed with the base portion 12e of the fan-shaped second hole 12d of the pedestal side support member 12 as the rotation center while the upper surfaces of 13 and 14 are in contact with each other. , Rotate in the direction of arrow C. In this case, the restricting portion 20a of the turning range restricting member 20 is first brought into contact with one end of the hole-like second abutting portion 12f of the pedestal side support member 12 as the display screen portion 40 is turned. Further, when the display screen part 40 is tilted to about 30 degrees by applying a pressing force in the C direction by the user, it comes into contact with one end of the notch-shaped first contact part 11f of the display screen support member 11. Is done. That is, the restricting portion 20 a of the rotation range restricting member 20 is sandwiched between one end portion of the first contact portion 11 f of the display screen support member 11 and one end portion of the second contact portion 12 f of the pedestal side support member 12. Accordingly, the display screen unit 40 is restricted from being rotated about 30 degrees or more with respect to the C direction. As described above, in this embodiment, the rotation range when the display screen unit 40 is in the upward direction is restricted to a rotation range of 0 degrees to about 30 degrees by setting the rotation range restriction member 20 in the restricted state. In the restricted state by the turning range restricting member 20, the display screen unit 40 is configured not to turn in the horizontal direction.

  Next, from the state in which the display screen unit 40 shown in FIG. 14 is vertically supported by the display screen support member 11 with respect to the display screen turning device 23, the display screen unit 40 supported by the display screen support member 11 is changed. A case where the user presses in the D direction (the direction in which the display screen unit 40 faces downward) will be described. In this case, as shown in FIG. 9, the display screen support member 11 and the support shaft are supported while the base portion 11 e of the fan-shaped first hole 11 d of the display screen support member 11 and the upper surfaces of the support shafts 13 and 14 are in contact with each other. 13 and 14 integrally start to rotate in the direction of arrow D, with the root portion 12e of the fan-shaped second hole 12d of the pedestal side support member 12 as the center of rotation. Then, when the display screen support member 11 and the support shafts 13 and 14 are rotated by 5 degrees (angle β2 in FIG. 9), the support shafts 13 and 14 are connected to the pedestal side support member 12 as shown in FIG. It contacts the other edge of the fan-shaped second hole 12d. In this state, when the user further presses the display screen section 40 in the direction of arrow D, the display screen support member 11 is supported with respect to the support shafts 13 and 14 with the root portion 11e of the fan-shaped first hole portion 11d as the rotation center. The rotation in the direction of arrow D is continued. When the display screen support member 11 is further rotated by 5 degrees in the direction of arrow D (β1 in FIG. 9), the support shafts 13 and 14 are fan-shaped of the display screen support member 11 as shown in FIG. By abutting against the other edge of the first hole portion 11d, it becomes impossible to rotate further in the direction of arrow D. As described above, in the present embodiment, the display screen unit 40 shown in FIG. 14 is supported by the display screen support member 11 perpendicularly to the display screen turning device 23, as shown in FIG. It can be rotated up to 10 degrees in the D direction.

  In addition, as shown in FIG. 19, in the state in which the display screen unit 40 is rotated about 10 degrees in the D direction (the direction in which the display screen unit 40 faces downward), the regulating unit 20a of the rotation range regulating member 20 is The first contact portion 11f of the display screen support member 11 and the second contact portion 12f of the pedestal side support member 12f are fitted into the first contact portion 11f of the display screen support member 11 and the pedestal. It is not in contact with either the second contact portion 12 f of the side support member 12. That is, the rotation range restricting member 20 does not have a function of restricting the rotation range in the direction in which the display screen unit 40 faces downward.

  Further, as shown in FIG. 14, the rotation angle of the display screen unit 40 in the arrow C direction from the state in which the display screen unit 40 is vertically supported by the display screen support member 11 with respect to the display screen turning device 23. Is 0 degrees to 90 degrees, or when the user stops pressing the display screen section 40 at an arbitrary rotation angle of 0 degrees to 10 degrees in the direction of arrow D, the disc spring 16 (see FIG. 4) Is pressed so as to sandwich the display screen support member 11 and the pedestal side support member 12 via the pressure contact plate 18, so that the display screen support member is caused by the frictional force between the display screen support member 11 and the pedestal side support member 12. The rotation angle of 11 is maintained.

  In the present embodiment, as described above, the plate-like support shafts 13 and 14 can be used as the rotation shafts by providing the plate-like support shafts formed in a plate shape. In this case, the plate-shaped support shafts 13 and 14 formed in a plate shape can be easily drilled or processed by press working, so that the outer peripheral surface of the round shaft-shaped rotation shaft is provided. Unlike the case of performing groove processing or step processing, the processing of the rotating shaft is not complicated. Further, in the restriction release state, the display screen attachment portion 11a for attaching the display screen portion 40 of the display screen support member 11 can be rotated to an angle that is in the horizontal direction, and in the restriction state, the display screen attachment member 11 is attached to the display screen support member 11. By attaching to the support shafts 13 and 14 a rotation range restricting member 20 that restricts the rotation range of the display screen support member 11 to a predetermined rotation range so that the portion 11a does not rotate to an angle that is in the horizontal direction. Sometimes, by releasing the restriction of the rotation range restriction member 20, the display screen mounting portion 31 a can be turned to an angle that is in the horizontal direction, and during normal use, the rotation range restriction member 20 is brought into a restriction state. Thus, the display screen support member 11 can be rotated within a predetermined rotation range that does not reach the horizontal direction. Thereby, at the time of use of the display apparatus 100, it can control that the display screen part 40 inclines to a horizontal direction by an unexpected impact, a user's operation mistake, etc. Even if the rotation range restricting member 20 is in the restricted state, it can be freely rotated within a predetermined rotation range, so that it rotates once once when rotating within the predetermined rotation range. There is no need to adjust the range regulating member 20.

  Further, in the present embodiment, by providing a torsion spring for urging the rotation range restricting member 20 in the direction for restricting the rotation range, the display screen unit 40 is always moved to the horizontal direction by the urging force of the torsion spring. The state which controls tilting can be maintained.

  Further, in the present embodiment, the display screen support member 11 is provided with a notch-shaped or hole-shaped first contact portion 11f, and the base-side support member 12 is provided with a notch-shaped or hole-shaped second contact portion 12f. The provision of the first contact portion 11f and the second contact portion 12f and the rotation range restricting member 20 can stably prevent the display screen portion 40 from tilting in the horizontal direction.

  Further, in the present embodiment, the rotation portion 11b of the display screen support member 11 is provided with a fan arranged so that the root portion on the circular center side is located on the upper side in order to insert the plate-like support shafts 13 and 14. The base-side support member 12 is configured so that the base portion on the circular center side is positioned on the lower side in order to insert the plate-like support shafts 13 and 14. When the display screen unit 40 is rotated in a direction in which the display screen unit 40 is tilted upward in the release state of the rotation range restriction member 20, the support shaft 13 and the fan-shaped second hole 12d are arranged. 14 and the display screen support member 11 rotate integrally around the root portion 12e of the second hole portion 12d of the pedestal support member 12 within the angle range of the second hole portion, and then the support portions 13 and 14 are The base portion of the first hole portion 11d of the display screen support member 11 By rotating within the angular range of the first hole portion 11d around 1e, the display screen support member 11 can be rotated to an angle at which the display screen mounting portion 11a to which the display screen portion 40 is attached is in the horizontal direction. With this configuration, even when the plate-like support shafts 13 and 14 are used as the rotation shaft, the display screen mounting portion 11a can be easily formed by the fan-shaped first hole portion 11d and the second hole portion 12d. It can be rotated to an angle that is horizontal.

  Further, in the present embodiment, the support shafts 13 and 14 are configured such that the base portion 11e of the first hole portion 11d abuts the upper surfaces of the plate-like support shafts 13 and 14, and the base portion 12e of the second hole portion 12d is the plate. By contact with the lower surfaces of the support shafts 13 and 14, the vertical portion of the display screen 40 is received by the root portion 11e of the first hole portion 11d and the root portion 12e of the second hole portion 12d. When the display screen support member 11 is rotated, the plate-like support shafts 13 and 14 are connected to the root portion 11e on the circular center side of the first hole portion 11d and the root portion 12e on the circular core side of the second hole portion 12d. Therefore, the display screen support member 11 and the support shafts 13 and 14 can be easily rotated within the fan-shaped angle range. Further, since the vertical load of the display screen unit 40 is applied to the upper and lower ends of the plate-like support shafts 13 and 14, the rotation operation of the display screen unit 40 can be stabilized.

  Further, in the present embodiment, when the display screen unit 40 is rotated in a direction that tilts downward, the first hole portion 11d and the plate-like support shafts 13 and 14 come into contact with each other so that the display screen unit 40 has a predetermined value. By being configured so as to be prevented from tilting downward than the angle, it is possible to prevent the display device 100 from falling due to the center of gravity of the display screen unit 40 being excessively tilted downward.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of the claims, and further includes meanings equivalent to the scope of the claims and all modifications within the scope.

  For example, in the above-described embodiment, an example in which a torsion spring is used as a spring member for urging the rotation range restriction member 20 in a direction for restricting the rotation range has been described. However, the present invention is not limited thereto, and the compression spring is used. Etc. may be used.

  Moreover, in the said embodiment, while forming the 1st contact part 11f of the display screen support member 11 in notch shape, and forming the 2nd contact part 12f of the base side support member 12 in hole shape, this invention However, the first contact portion 11f and the second contact portion 12f may be formed in either a hole shape or a notch shape.

It is the perspective view which showed the whole structure of the display apparatus provided with the one display screen support mechanism of this invention by one Embodiment of this invention. FIG. 2 is a perspective view illustrating a state where a display screen unit is removed from the display device according to the embodiment of the present invention illustrated in FIG. 1. It is the perspective view which showed the whole structure of the display apparatus provided with the one display screen support mechanism of this invention by one Embodiment of this invention shown in FIG. FIG. 2 is an exploded perspective view illustrating a structure of a display screen support mechanism of the display device according to the embodiment of the present invention illustrated in FIG. 1. It is a front view of the display screen support member of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is a front view of the display screen support member of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is the figure which showed the rotation range control member of the display screen support member of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is the figure which showed the torsion spring of the display screen support member of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is sectional drawing of the display screen support member of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is an enlarged side view of the rotation part of the display screen support member of the display screen support mechanism by one Embodiment of this invention shown in FIG. FIG. 3 is a side view of a pedestal side support member of the display screen support mechanism according to the embodiment of the present invention shown in FIG. 2. It is the figure which showed the retaining member of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is the figure which showed the stepped screw member of the display screen support member of the display screen support mechanism by one Embodiment of this invention shown in FIG. FIG. 3 is a cross-sectional view of a display screen support mechanism according to an embodiment of the present invention shown in FIG. 2. It is sectional drawing for demonstrating rotation operation | movement of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is sectional drawing for demonstrating rotation operation | movement of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is sectional drawing for demonstrating rotation operation | movement of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is sectional drawing for demonstrating rotation operation | movement of the display screen support mechanism by one Embodiment of this invention shown in FIG. It is sectional drawing for demonstrating rotation operation | movement of the display screen support mechanism by one Embodiment of this invention shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Display screen support mechanism 11 Display screen support member 11a Display screen attaching part 11d 1st hole part 11f 1st contact part 12 Pedestal side support member 12d 2nd hole part 12f 2nd contact part 13, 14 Support shaft 20 Rotation Range control member

Claims (7)

In a display screen support mechanism comprising a display screen support member that supports the display screen unit, and a pedestal side support member for rotatably supporting the display screen support member,
A plate-shaped sheet metal support shaft for relatively rotating the display screen support member and the pedestal side support member;
It is attached to the support shaft, and in the restriction release state, the display screen attachment part to which the display screen part of the display screen support member is attached can be rotated to an angle that is in the horizontal direction. A rotation range restricting member for restricting a rotation range of the display screen support member to a predetermined rotation range so that the display screen mounting portion of the display screen is not rotated to an angle that is in a horizontal direction;
A spring member for biasing the rotation range regulating member in a direction to regulate the rotation range;
The display screen support member and the pedestal side support member include a contact portion that restricts a movement range of the display screen support member by contacting the rotation range restriction member,
The contact portion includes a notch-shaped or hole-shaped first contact portion provided on the display screen support member, and a notch-shaped or hole-shaped second contact portion provided on the pedestal side support member. Including
The rotating portion of the display screen support member has a fan-shaped first hole portion disposed so that a root portion on the circular center side is positioned on the upper side in order to insert the plate-like support shaft. ,
The pedestal side support member has a fan-shaped second hole portion arranged so that the root portion on the circular center side is positioned on the lower side in order to insert the plate-like support shaft,
When the display screen unit is rotated in a direction in which the display screen unit is tilted upward in the restriction release state of the rotation range regulating member, the support shaft and the display screen support member are arranged in the second hole portion of the base support member. The support part is rotated integrally within the angular range of the second hole part around the root part, and then the support part is the first hole around the root part of the first hole part of the display screen support member. By rotating within the angular range of the part, the display screen support member can be rotated to an angle at which the display screen mounting part for attaching the display screen part is in the horizontal direction,
When the display screen unit is rotated in a downward tilting direction, the display screen unit is prevented from tilting below a predetermined angle due to contact between the first hole and the plate-like support shaft. A display screen support mechanism configured to be A display screen support member including a rotating part;
A pedestal side support member for rotatably supporting the rotation portion of the display screen support member;
A plate-like support shaft made of sheet metal for relatively rotating the display screen support member and the pedestal side support member;
The display screen mounting portion is attached to the support shaft and is capable of rotating to an angle at which the display screen mounting portion for attaching the display screen portion of the display screen support member is in a horizontal direction in the restriction release state. A display screen support mechanism comprising a rotation range restriction member for restricting a rotation range of the display screen support member to a predetermined rotation range so that the display screen attachment portion does not rotate to an angle that is in a horizontal direction.   The display screen support mechanism according to claim 2, further comprising a spring member for urging the rotation range regulating member in a direction for regulating the rotation range. The display screen support member and the pedestal side support member include a contact portion that restricts a movement range of the display screen support member by contacting the rotation range restriction member,
The contact portion includes a notch-shaped or hole-shaped first contact portion provided on the display screen support member, and a notch-shaped or hole-shaped second contact portion provided on the pedestal side support member. The display screen support mechanism according to claim 2, comprising: The rotating portion of the display screen support member has a fan-shaped first hole portion disposed so that a root portion on the circular center side is positioned on the upper side in order to insert the plate-like support shaft. ,
The pedestal side support member has a fan-shaped second hole portion arranged so that the root portion on the circular center side is positioned on the lower side in order to insert the plate-like support shaft,
When the display screen unit is rotated in a direction in which the display screen unit is tilted upward in the restriction release state of the rotation range regulating member, the support shaft and the display screen support member are arranged in the second hole portion of the base support member. The support part is rotated integrally within the angular range of the second hole part around the root part, and then the support part is the first hole around the root part of the first hole part of the display screen support member. 5. The display screen support member can be rotated to an angle at which a display screen mounting portion to which the display screen portion is attached is in a horizontal direction by rotating within the angle range of the portion. The display screen support mechanism described in 1.   The support shaft has a base portion of the first hole portion in contact with an upper surface of the plate-like support shaft, and a root portion of the second hole portion in contact with a lower surface of the plate-like support shaft. The display screen support according to any one of claims 2 to 5, wherein the display screen support is configured to receive a vertical load of the display screen portion by a root portion of the first hole portion and a root portion of the second hole portion. mechanism.   When the display screen unit is rotated in a downward tilting direction, the display screen unit is prevented from tilting below a predetermined angle due to contact between the first hole and the plate-like support shaft. The display screen support mechanism according to claim 2, wherein the display screen support mechanism is configured as described above.

Images