JP2010160817A - Commodity sales data processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent a display surface of a closed display from contacting a keyboard without depending on an operator's manual operation based on his/her determination. <P>SOLUTION: A commodity sales data processing apparatus 101 has a structure in which a display 106 rotates to cover a keyboard 103. The apparatus 101 includes a pair of stoppers 201 provided on both sides of the display 106, and a restraining mechanism that restrains the stoppers 201 from rotating beyond a regulated position. Each tip of the stoppers 201 contacts the upper surface of a housing 102 so that the display surface of the display 106 may not contact the keyboard 103 when the display 106 rotates under gravity around an axis parallel to a rotation fulcrum shaft of the display 106 in accordance with the rotation of the display 106 in a closing direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a merchandise sales data processing apparatus having a structure in which a display rotates and a closed display covers a keyboard.

  2. Description of the Related Art Conventionally, as a merchandise sales data processing apparatus, a structure in which a display rotates and a closed display covers a keyboard is known. In the merchandise sales data processing apparatus having such a structure, it is necessary to prevent the display surface of the closed display from interfering with the keyboard in order to protect, for example, a liquid crystal display panel used for the display from damage.

  Patent Document 1 describes an invention in which a protrusion that protrudes higher than the height of the key top is provided on the key top surface side of the keyboard so as to be able to appear and retract. As an example, the protrusion is connected to a lever that can be slid from the rear side of the housing of the device via a parallel link mechanism, and protrudes and retracts according to the sliding operation of the lever (see FIGS. 11 and 12). As another example, a part of a semicircular rotating member that rotates according to a pressing operation by an operation from the keyboard side is used as a protrusion, and the protrusion is caused to appear and disappear by manually rotating the rotating member (FIG. 13). And FIG. 15). In the state in which the protrusion appears, the display that is rotated and closed so as to cover the keyboard abuts on the protrusion, thereby suppressing the rotation and preventing the display surface of the display from contacting the keyboard.

  In the invention described in Patent Document 1, the protrusions and protrusions are left to manual operation. For this reason, when the display is closed, it is expected that the protrusion will appear and forgotten, and this cannot reliably prevent the display surface of the display from being damaged. In addition, since the protrusions and protrusions are entrusted to manual operation, there is a problem that the work for that is complicated.

  An object of the present invention is to reliably prevent contact between a display surface of a closed display and a keyboard without relying on manual operation based on an operator's judgment.

  The present invention relates to a keyboard disposed on the upper surface of the housing of the device and a pivot fulcrum located behind the keyboard so as to open and close the upper surface of the housing. A display in which the keyboard and the display surface are opposed to each other in a closed state in which the keyboard is positioned below, and provided on both sides of the display, A pair of stoppers whose tip end abuts on the upper surface of the housing so that the display surface of the display does not contact the keyboard by rotating by its own weight around a parallel axis, and the stopper beyond the restriction position And a suppression mechanism that suppresses rotation.

  According to the present invention, with the closing operation of the display, the rotation operation of the display can be restricted at a position where the display surface of the display does not touch the keyboard, thereby relying on the manual operation based on the operator's judgment. Therefore, it is possible to ensure that the display surface of the closed display does not touch the keyboard.

1 is an overall perspective view showing a state in which a display is opened as a first embodiment of the present invention. It is the whole perspective view which shows the state where the display was closed. It is a vertical side view in the state where the display which shows the structure of the mechanism which controls the interference of the display surface of the closed display with respect to a keyboard is opened. It is a vertical side view in the state where the display which shows the structure of the mechanism which controls the interference of the display surface of the closed display with respect to a keyboard is closed. FIG. 6 is an overall perspective view showing a state in which a display is opened as a second embodiment of the present invention. It is a perspective view which shows a stopper. It is a disassembled perspective view of a stopper. It is a front view of the attachment hole located in a recessed part. It is a vertical side view of the periphery of the stopper showing a state where the stopper is functioning. It is a side view of the device front-end | tip part which shows the state which the stopper is functioning. It is a schematic diagram which shows the positional relationship of the rotation state of a stopper in each opening / closing position of a display, and a stopper and a suppression mechanism.

  A first embodiment of the present invention will be described with reference to FIGS. This embodiment is an example applied to the electronic cash register 101. The electronic cash register 101 has a housing 102 having a basic form in which the height gradually decreases from the rear part to the front part. On the upper surface of the housing 102, a keyboard 103 is disposed on the front side, and a printer cover 104 is disposed on the left rear side so as to be freely opened and closed. The printer cover 104 covers a printer (not shown) for printing receipts built in the electronic cash register 101, and forms a receipt issuing port 105 at the boundary with the keyboard 103.

  A display 106 is further attached to the upper surface of the housing 102. The display 106 is a liquid crystal display having a liquid crystal display panel 107 on the display surface. Therefore, the display 106 stores and holds the liquid crystal display panel 107 so as to be exposed from the display hole 110 formed in the center portion of the frame 109 forming a part of the flat display housing 108. The frame 109 has a frame structure surrounding the liquid crystal display panel 107. The display 106 having such a structure is rotatably held by a hinge 111 which is positioned on the upper right side of the housing 102 on the right rear side of the keyboard 103 and serves as a rotation fulcrum.

  FIG. 2 is an overall perspective view showing a state in which the display 106 is closed. When the display 106 is closed from the state shown in FIG. 1 when in use, the display 106 opens and closes the upper surface of the housing as shown in FIG. In the closed state, the display surface on which the liquid crystal display panel 107 is provided is positioned so as to face and cover the keyboard 103.

  Here, the positional relationship between the printer cover 104 and the display 106 will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, when the display 106 is in the open state, the printer cover 104 and the display 106 are prevented from opening the printer cover 104 due to interference with the lower edge of the display 106. As shown in FIG. The printer cover 104 is positioned so as to be freely opened and closed when the 106 is closed.

  Further, as shown in FIGS. 1 and 2, the upper surface of the housing 102 has a shape that rises upward from the rear portion of the keyboard 103. The printer cover 104 and the hinge 111 of the display 106 are provided at the rising portion.

  FIG. 3 is a vertical side view showing a structure of a mechanism for suppressing interference of the display surface of the closed display 106 with respect to the keyboard 103 in a state where the display 106 is opened. This mechanism is an interference suppression mechanism 112. The interference suppression mechanism 112 is configured by providing a pair of left and right structures that connect a pressure receiving portion 113 and a stopper 114 with a swing arm 115 as a power transmission mechanism. The swing arm 115 is a plate-like arm member whose both ends protrude upward, and is formed by being rotatably attached to a frame structure (not shown) housed in the housing 102 of the device by a support shaft 116. Yes.

  A pressure receiving portion 113 is formed at one end of the swing arm 115. As shown in FIG. 1, the pressure receiving portion 113 is exposed to the outside from a pair of left and right cutouts 117 formed in a part of the housing 102. The exposed portion is positioned at the rising portion of the housing 102 described above located on the rear side of the keyboard 103.

  A stopper 114 is attached to the other end of the swing arm 115. As shown in FIG. 1, the stopper 114 is exposed to the outside from a pair of left and right stopper holes 118 formed in a part of the housing 102. The exposed portion is the left and right adjacent position on the most front side of the keyboard 103. Such a stopper 114 has a swingable contact piece 119 at its tip. The contact piece 119 is attached to the distal end portion of the stopper 114 by a support shaft 120 parallel to the axis of the hinge 111 serving as a rotation fulcrum of the display 106, and is held so as to be swingable.

  FIG. 4 is a vertical side view showing the structure of the interference suppression mechanism 112 in a state in which the display 106 is closed. The pair of left and right pressure receiving portions 113 interfere with the movement trajectory of the display 106 in the closing direction, and are positioned at positions that are pressed by the display 106 rotating in the closing direction and displaced in the pressure receiving direction. When the pressure receiving portion 113 is displaced in the pressure receiving direction, the swing arm 115 pivots around the support shaft 116 and swings to push up the pair of stoppers 114 provided on the other end side. The pair of left and right stoppers 114 are in contact with the display 106 that rotates in the closing direction, and are positioned so that the display 106 does not contact the keyboard 103. At this time, the display 106 is in contact with the pair of left and right stoppers 114 at the left and right frames 109 thereof.

  In the normal state where the lower edge of the display 106 does not press the pressure receiving portion 113, the interference suppression mechanism 112 is exposed to the outside from the pair of left and right cutouts 117 formed in a part of the housing 102, and The stopper 114 is positioned so as not to protrude from the pair of left and right stopper holes 118 formed in the portion. The posture of the interference suppression mechanism 112 is realized by the weight balance of the swing arm 115 that swings around the support shaft 116. However, as another embodiment, for example, a biasing force is applied to the swing arm 115 by a biasing member such as a coil spring, thereby maintaining the normal posture of the interference suppression mechanism 112. May be.

  In such a configuration, a normal usage mode of the electronic cash register 101 is a state where the display 106 is raised as shown in FIG. In this state, merchandise sales data processing can be performed by key operation of the keyboard 103, and necessary information is displayed on the liquid crystal display panel 107 of the display 106.

  As an example, when it becomes necessary to open the printer cover 104 for paper replacement, maintenance work, etc., the display 106 is tilted until the posture is such that the keyboard 103 is covered. At this time, the pair of left and right pressure receiving portions 113 are positioned at positions that interfere with the movement trajectory of the display 106 in the closing direction, and are displaced in the pressure receiving direction by being pressed by the display 106 that rotates in the closing direction. That is, the display 106 abuts against the pair of pressure receiving portions 113 exposed to the outside from the pair of left and right cutouts 117 whose lower edges are formed in part 102 by rotating in the closing direction. When the display 106 is further rotated in the closing direction from this state, the pressure receiving portion 113 is pushed by the lower edge of the display 106 and retracts toward the inside of the housing 102. Then, the pair of swing arms 115 pivot around the support shaft 116 to swing, and push up the pair of stoppers 114 provided on the other end side. As a result, the left and right frame 109 portions of the display 106 rotated in the closing direction come into contact with the stopper 114, and the display 106 is prevented from rotating. At this time, the display 106 is maintained so as not to hit the keyboard 103. Thereby, the contact between the liquid crystal display panel 107 provided on the display surface of the closed display and the keyboard 103 can be reliably prevented without depending on the manual operation based on the judgment of the operator. Therefore, the liquid crystal display panel 107 is protected from damage due to collision with the keyboard 103.

  The stopper 114 receives the display 106 with the contact piece 119. Since the contact piece 119 is rotatably supported by the support shaft 120, the contact piece 119 swings according to the contact angle of the left and right frames 109 of the display 106, and can always receive the display 106 on a flat upper surface. . Thereby, damage to the left and right frames 109 of the display 106 due to contact with the stopper 114 is prevented.

  A second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is also omitted.

  FIG. 5 is an overall perspective view showing a state in which the display 106 is opened. In the present embodiment, the interference suppression mechanism 112 is different from that of the first embodiment. That is, in the present embodiment, the interference suppression mechanism 112 configured by the pressure receiving portion 113, the stopper 114, and the swing arm 115 is not provided, but a pair of stoppers 201 attached to the left and right frame 109 portions of the display 106. Thus, the interference suppression mechanism 112 is configured.

  FIG. 6 is a perspective view showing the stopper 201. The left and right frames 109 of the display 106 are formed with a pair of recesses 202 for storing the stopper 201. The stoppers 201 are accommodated in these recesses 202 so as to be rotatable.

  FIG. 7 is an exploded perspective view of the stopper 201. The stopper 201 includes a stopper piece 203 and a support shaft 204 with a key. A key 205 is protruded from the outer peripheral surface of the keyed support shaft 204 along the axial direction. A key groove 206 is formed in the stopper piece 203, and a support shaft 204 with a key is inserted into the key groove 206.

  A recess 202 formed in the frame 109 of the display 106 is formed with a pair of attachment holes 207 through which the keyed support shaft 204 is inserted. The stopper piece 203 is rotatably attached to the frame 109 by fitting both end portions of the keyed spindle 204 inserted through the key groove 206 into the attachment holes 207. Such a stopper piece 203 is assembled by inserting the keyed spindle 204 into one mounting hole 207 from the back side of the frame 109 with the stopper piece 203 fitted in the recess 202 when the display 106 is manufactured. This is realized by being inserted through the key groove 206 formed in the stopper piece 203 and further through the other mounting hole 207. The support shaft 204 through which the pair of mounting holes 207 and the key groove 206 are inserted can be easily prevented from coming off by adopting a retaining method using, for example, an E-ring.

  FIG. 8 is a front view of the mounting hole 207 located in the recess 202. The mounting hole 207 has a small-diameter portion 208 for fitting a columnar portion serving as a base portion of the keyed spindle 204 and a large-diameter portion 209 for fitting a key 205 portion. The large diameter portion 209 has a fan shape. Therefore, the rotation of the stopper 201 is limited to the range in which the key 205 can rotate within the large diameter portion 209. In particular, in FIG. 8, the regulating piece 210, which is one piece in the large-diameter portion 209 that is set at an angle slightly opened from the vertical, is different from the pivoting of the pivot shaft 204 with the key and thus the stopper piece 203 by one point. Restrict at the position indicated by the line.

  FIG. 9 is a schematic diagram showing the rotation state of the stopper 201 at each opening / closing position of the display 106 and the positional relationship between the stopper 201 and the suppression mechanism. In FIG. 9, the mounting hole 207 is indicated by a solid line, the stopper 201 is indicated by a one-point difference line, and the recess 202 formed in the frame 109 of the display 106 is indicated by a two-point difference line. The fitting state of the keyed spindle 204 with respect to the mounting hole 207 has a certain amount of play. “To some extent” means that the stopper 201 can be rotated by its own weight as the display 106 rotates. Therefore, when the display 106 is opened (FIG. 9 (a)) and gradually closed by turning in the closing direction (FIG. 9 (b)), the stopper 201 is rotated by its own weight to be in the vertical state. Become. When the display 106 further rotates and reaches a position where it covers the keyboard 103 (FIG. 9C), the key 205 of the keyed support shaft 204 is the regulating piece 210 provided in the large diameter portion 209 of the mounting hole 207. The turning movement is restricted. Therefore, the stopper 201 rotated by its own weight according to the rotation operation of the display 106 does not rotate beyond the vertical state, and the rotation is restricted.

  FIG. 10 is a side view of the distal end portion of the apparatus showing a state where the stopper 201 is functioning. As shown in FIG. 10, at the position where the display 106 is rotated until it covers the keyboard 103, the stopper 201 that is rotated by its own weight and maintained in the vertical state has its tip portion on the upper surface of the housing 102 of the device. The left and right side portions of the display 106 are in contact with each other, and further rotation of the display 106 is suppressed. In this sense, the rotation position of the stopper 201 in the vertical state is defined as a restriction position A where the display surface of the display 106 is not brought into contact with the keyboard 103.

  FIG. 11 is a vertical side view of the periphery of the stopper showing a state where the stopper 201 is functioning. As long as the stopper 201 is in contact with the upper surface of the housing 102 at the restriction position A, the stopper 201 maintains a vertical state. In the position covering the keyboard 103, the display 106 is positioned at a position that is lowered toward the front, that is, a position where the tip side is positioned lower than the position of the hinge 111 that is the rotation fulcrum side. For this reason, when the weight of the display 106 or an external force for further closing the display 106 is applied to the display 106, the display 106 exerts a force in a direction to further rotate the stopper 201 from the restriction position A. Add only the force in the opposite direction. On the other hand, the stopper 201 has a restriction position A because the key 205 of the keyed support shaft 204 hits the restriction piece 210 provided in the large-diameter portion 209 of the mounting hole 207 and its rotational movement is restricted. Further rotation beyond the range is suppressed. In FIG. 11, the mounting hole 207 is indicated by a one-point difference line. This is the reason why the stopper 201 maintains the vertical state as long as it is in contact with the upper surface of the housing 102 at the restriction position A. A mechanism constituted by the keyed spindle 204, the mounting hole 207, and the like, which is a mechanism for suppressing the stopper 201 from further rotating beyond the restriction position A, constitutes a suppression mechanism 211.

  In such a configuration, as an example, when it is necessary to open the printer cover 104 for paper replacement, maintenance work, or the like, the display 106 is tilted until the posture is such that the keyboard 103 is covered. As a result, the stopper 201 rotates by its own weight and abuts on the upper surface of the housing 102 at the restriction position A, preventing further rotation of the display 106. At this time, the display 106 is maintained so as not to hit the keyboard 103. Thereby, the liquid crystal display panel 107 is protected from damage due to collision with the keyboard 103.

  According to the present embodiment, it is provided on the display surface of the closed display without relying on the manual operation based on the judgment of the operator by a relatively simple configuration in which only the stopper 201 that rotates by its own weight is provided. Contact between the liquid crystal display panel 107 and the keyboard 103 can be reliably prevented. Therefore, the liquid crystal display panel 107 is protected from damage due to collision with the keyboard 103.

  DESCRIPTION OF SYMBOLS 102 ... Housing, 103 ... Keyboard, 104 ... Printer cover, 106 ... Display, 113 ... Pressure-receiving part, 114 ... Stopper, 115 ... Swing arm (power transmission mechanism), 119 ... Contact piece, 201 ... Stopper, 211 ... Inhibition Mechanism, A ... Restricted position

Japanese Utility Model Publication No. 02-145427

Claims (2)

A keyboard located on the top surface of the device housing;
The keyboard and the display surface are closed in a closed state in which the top surface of the housing is opened and closed by rotating about a rotation fulcrum located behind the keyboard and the front end side is located below the rotation fulcrum side. And the opposite display,
Provided on both sides of the display, the display surface of the display is attached to the keyboard by rotating by its own weight around an axis parallel to the rotation fulcrum axis of the display as the display rotates in the closing direction. A pair of stoppers whose front ends abut against the upper surface of the housing so as not to contact;
A suppression mechanism that prevents the stopper from rotating beyond the restriction position;
A product sales data processing apparatus comprising: A printer cover is provided on the upper surface of the housing so as to be opened rearward and rearward of the keyboard.
The printer cover and the display are positioned such that when the display is in an open state, the printer cover is prevented from being opened by interference with a lower edge of the display, and the display is closed.
The merchandise sales data processing apparatus according to claim 1.

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