JP2006269286A - Push-button switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a push-button switch capable of moving maintaining the posture at the time of normal state of a knob at operation of the knob and capable of reducing the number of components and assembly man-hour, and further the push-button switch in which a good quality operation feeling with sturdy feeing and click-stop feeling is obtained. <P>SOLUTION: A support part 22 which is arranged at nearly central part of a guide hole 21, supports a knob 3, and transmits movement of the knob 3 in an axial direction, and a connecting rod group which is arranged to form a group and is composed of a plurality of connecting rods to connect the wall face of the guide hole 21 and the support part 22 are formed integrally with a housing 2 in a push-button switch. Thereby, a push-button switch which moves maintaining a posture in normal state at operation of the knob, and can reduce the number of components and assembly man-hour can be realized. Furthermore, a push-button switch which is eliminated of a gap between links of the conventional push-button switch and has a good quality operating feeling with sturdy feeling and a click-stop feeling is realized. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a push button switch.

  As a conventional push button switch, for example, there is one in which a knob is coupled to a substrate provided with a switch unit for opening and closing an electric circuit via two links (see Patent Document 1).

  In this push button switch, the links are arranged in parallel with each other, and both the substrate side end portion and the knob side end portion are rotatably locked.

With such a configuration, when the operator depresses the knob, the links rotate around the substrate side end portion while maintaining a parallel relationship with each other, and incline in a direction horizontal to the base. As a result, the knob is lowered while keeping its upper surface horizontal, in other words, while maintaining the posture before the operator presses, and presses the switch portion on the substrate to open and close the electric circuit.
JP 2000-348562 A

  In the conventional push button switch described above, since the knob is coupled to the board via two links, the number of parts and assembly man-hours increase, and the cost increases. Further, since each link is rotatably engaged with the knob and the substrate, there is a gap in each engaging portion. For this reason, there is a problem that when the knob is pushed, the knob moves by a gap and a feeling of rigidity is not felt, and an operation feeling with a sense of moderation cannot be obtained.

  The present invention has been made in view of the above-described problems, and its purpose is to maintain the characteristics that the knob descends while maintaining the posture before being pushed by the operator when the knob is pushed. It is an object of the present invention to provide a push button switch that can reduce man-hours. Another object is to provide a push button switch that provides a feeling of rigidity and moderation during operation, that is, a good feeling of operation.

  In order to achieve the above object, the present invention employs the following technical means.

  According to a first aspect of the present invention, there is provided a push button switch comprising: a housing having a guide hole; a knob accommodated in the guide hole so as to be movable in the axial direction of the guide hole; And a contact switch mounted on the circuit board facing the knob and switching the electrical circuit between conduction and interruption, and a push button switch for transmitting the movement of the knob in the axial direction to the contact switch to operate the contact switch. A holding portion that is arranged at a substantially central portion of the hole and holds the knob and transmits axial movement of the knob to the contact switch, and is arranged side by side so as to form a group and connects the wall surface of the guide hole and the holding portion. A plurality of connecting rod groups comprising a plurality of connecting rods are provided, and at least two of the plurality of connecting rod groups are arranged such that their extending directions intersect each other, and the holding portion and the multiple connecting rod group are arranged. Connecting 桿群 group is formed integrally with the housing, the operator each connecting rod by pressing a knob is characterized in that the holding portion while being elastically deformed to move the knob and integrally.

  In the above-described configuration, any two ends of a plurality of connecting rods constituting a group of connecting rods, that is, substantially parallel squares by connecting points between the connecting rods and the holding portion and connecting points between the connecting rods and the housing. A shape is formed. In other words, the holding portion is coupled to the housing via a link mechanism that forms a substantially parallelogram.

  In the above-described configuration, the holding portion is connected to the housing via a plurality of connecting rod groups, and at least two connecting rod groups among the plurality of connecting rod groups intersect with each other in the extending direction. Are arranged as follows. The extending direction of the connecting rod group here refers to the combined direction of the extending directions of the connecting rods constituting the connecting rod group, in other words, a combined vector obtained by combining the vectors of the connecting rods. .

  For this reason, a holding | maintenance part is connected with a housing via the link mechanism which comprises the some parallelogram arrange | positioned so that the extending | stretching direction may mutually cross | intersect. That is, the planes including the link mechanism that forms a substantially parallelogram cross each other.

  As a result, when an operator presses a knob, even if a moment that twists it with respect to a group of connected rods, that is, a moment that tilts the knob, is suppressed by another group of connected rods. Moment, that is, a moment that restores the inclination of the knob is generated, and as a result, the knob does not incline but moves while maintaining the posture in the natural state before being pushed.

  Therefore, the operator moves while maintaining the posture before the knob is pushed down no matter where the operator pushes the knob.

  In the push button switch according to claim 1 of the present invention, the holding portion and the plurality of groups of connecting rods are formed integrally with the housing.

  Thereby, the link parts in the conventional push button switch are unnecessary, and the number of parts and the number of assembling steps can be greatly reduced.

  As described above, a push button switch that can reduce the number of parts and assembly man-hours while maintaining the feature that the knob descends while maintaining the posture before being pushed by the operator when the knob is pushed is realized. be able to.

  In the push button switch according to claim 1 of the present invention, since the holding portion and the plurality of connecting rod groups are formed integrally with the housing, each connecting rod is elastically deformed when the operator presses the knob. While the holding portion moves integrally with the knob.

  As a result, there is a problem caused by the gap between the engaging portions generated in the conventional push button switch, that is, when the knob is pushed, the knob moves by the gap and a feeling of rigidity is not felt, and a moderate operation feeling is felt. It is possible to solve the problem that a ring cannot be obtained, and to realize a push button switch that is excellent in rigidity and moderation and that provides a high operation feeling.

  The push button switch according to claim 2 of the present invention is characterized in that at least two of the plurality of connecting rod groups are arranged so that their extending directions are orthogonal to each other.

  This makes it possible to reliably maintain the posture when the knob is moved to the posture in the natural state, regardless of the position pressed by the operator on the upper surface of the knob.

  The push button switch according to claim 3 of the present invention is characterized in that the plurality of connecting rods constituting the connecting rod group are parallel to each other and have the same length.

  This makes it possible to reliably maintain the posture when the knob is moved to the posture in the natural state, regardless of the position pressed by the operator on the upper surface of the knob.

  The push button switch according to claim 4 of the present invention is characterized in that a plurality of knobs are accommodated in one guide hole, and a contact switch, a holding portion and a plurality of connecting rod groups are provided corresponding to the knobs. Yes.

  Thereby, a push button switch having a plurality of knobs can be provided with a small number of parts and assembly man-hours.

  Hereinafter, a case where the push button switch according to the present invention is applied to the push button switch 1 incorporated in an air conditioner operation panel 100 installed in a passenger compartment of an automobile will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a front view of an air conditioner operation panel 100 including a push button switch 1 according to a first embodiment of the present invention. In FIG. 1, the upper side is the upper side of the automobile, and the left-right direction is the width direction of the automobile.

  2 is a cross-sectional view taken along line II-II in FIG. In FIG. 2, the left side is the driver's seat, and the push button switch 1 is pushed from the left side in FIG.

  3 is a cross-sectional view taken along line III-III in FIG.

  4 is a cross-sectional view taken along line IV-IV in FIG.

  The air conditioner operation panel 100 is provided in front of the driver's seat in the passenger compartment of the automobile and at a position where the driver can operate. The air conditioner operation panel 100 is a push button switch as a changeover switch for controlling the operation of an air conditioner device (not shown) of the automobile to a desired state (target indoor temperature, air flow rate, wind blowing direction, etc.). As shown in FIG. 1, three 1 are provided.

  As shown in FIG. 2, the push button switch 1 is roughly divided into a housing 2, a knob 3 that is housed and fixed in a guide hole 21 of the housing 2, a printed circuit board 4, and a knob on the printed circuit board 4. 2 and the contact switch 5 which is mounted to face 2.

  The configuration of the push button switch 1 will be described below.

  The knob 3 is formed of, for example, a resin material. As shown in FIGS. 2 and 3, the knob 3 is formed in a substantially rectangular parallelepiped shape with a bottom, and an outer side of the bottom portion is an operation portion 31. The knob 3 is arranged with the operation unit 31 on the front side, that is, on the driver side, and the driver presses the operation unit 31 with a finger as necessary. A cylindrical shaft portion 32 is provided on the back side of the knob 3, that is, on the back side of the operation portion 31. The shaft portion 32 is fitted into a through hole 22 a provided in the holding portion 22 of the housing 2 described later, and thereby the knob 3 is fixed to the holding portion 22. Moreover, in the push button switch 1 according to the first embodiment of the present invention, the shaft portion 32 is provided at the center of the operation portion 31 as shown in FIG. Specifically, the center of the shaft portion 32 is provided so as to coincide with the centroid of the operation portion 31. Thereby, the maximum value of the length from the shaft part 32 to the end part of the operation part 31 is minimized, and the magnitude of the bending moment generated in the shaft part 32 when the driver pushes the end part of the operation part 31 is reduced. It can be minimized.

  The housing 2 is made of, for example, a resin material. As shown in FIGS. 2 and 3, the housing 2 is formed in a substantially rectangular parallelepiped shape with a bottom, and the outer side of the bottom is exposed to the driver side to form the operation panel 2 a of the air conditioner operation panel 100. ing.

  The housing 2 is provided with a guide hole 21 as shown in FIG. The number of guide holes 21 is the same as the number of push button switches 1, that is, three are provided as shown in FIG. The knob 3 is movably accommodated in the guide hole 21. The guide hole 21 is formed by protruding a wall from the back surface of the operation panel 2a in the axial direction of the guide hole 21 (left-right direction in FIG. 2). A gap is formed between the guide hole 21 and the knob 3 so that the knob 3 can be moved. The gap 3 is used to obtain a good appearance of the air conditioner operation panel 100. The guide hole 21 is set as small as possible within a range not hindering movement in the axial direction (left and right direction in FIG. 2).

  As shown in FIG. 2, the housing 2 is provided with a holding portion 22 at the center portion of the guide hole 21. As shown in FIG. 2, a through hole 22 a is provided in the central portion of the holding portion 22. The shaft portion 32 of the knob 3 is fitted into the through hole 22 a, whereby the knob 3 is fixed to the holding portion 22. As shown in FIG. 2, a contact switch 5 to be described later is arranged on the opposite side of the holding portion 22 to the knob 3 (right side in FIG. 2), and the end of the holding portion 22 opposite to the knob 3 is a contact point. It is in contact with the switch 5.

  As shown in FIG. 2, the housing 2 is provided with connecting rods 23 a and 23 b that connect the wall surface of the guide hole 21 and the holding portion 22. A plurality of connecting rods 23a and 23b are arranged side by side to form a group, that is, two are provided to constitute the connecting rod group 23. The connecting rods 23a and 23b are arranged in parallel to each other and have the same length.

  As shown in FIG. 3, the housing 2 is provided with connecting rods 24 a and 24 b that connect the wall surface of the guide hole 21 and the holding portion 22. A plurality of connecting rods 24a and 24b are arranged side by side so as to form a group, that is, two are provided to constitute the connecting rod group 24. The connecting rods 24a and 24b are arranged in parallel to each other and have the same length.

  The connecting rod group 23 and the connecting rod group 24 are arranged so as to be orthogonal to each other as shown in FIG. As shown in FIG. 4, the connecting rods 23 a and 23 b are arranged so as to overlap in the axial direction of the guide hole 21 (direction perpendicular to the paper surface in FIG. 4). Similarly, as shown in FIG. 4, the connecting rods 24a and 24b are also arranged so as to overlap in the axial direction of the guide hole 21 (direction perpendicular to the paper surface in FIG. 4).

  That is, in the push button switch 1 according to the first embodiment of the present invention, the holding portion 22 is supported by the housing 2 by the two connecting rod groups 23 and 24 arranged so as to be orthogonal to each other.

  In the push button switch 1 according to the first embodiment of the present invention, the holding portion 22, the connecting rods 23 a and 23 b, and the connecting rods 24 a and 24 b are formed integrally with the housing 2. That is, it is integrally formed at the same time when the housing 2 is resin-molded.

  On the back side of the housing 2 (lower side in FIG. 3), as shown in FIG. The printed circuit board 4 is made of, for example, a glass epoxy resin substrate, and forms an electric circuit portion of the air conditioner operation panel 100.

  As shown in FIG. 2, a contact switch 5 is mounted on the printed circuit board 4 so as to face the knob 3. That is, it is mounted at a position corresponding to the holding portion 22 of the housing 2. The contact switch 5 has a structure that opens and closes an electric circuit by moving a contact made of an electric conductor attached to rubber having high elasticity, for example. For example, the electric circuit is opened in the natural state, and the electric circuit is closed by the contact point when pressed down. When the knob 3 is pressed to cause the contact switch 5 to open and close the electric circuit to generate an electric signal, a control circuit (not shown) receives the signal, and based on the signal, an air conditioner device (not shown) of the automobile. Control) to perform a predetermined operation.

  Next, the operation of the push button switch 1 according to the first embodiment of the present invention described above will be described.

  In a state in which the knob 3 is not pushed, that is, in a natural state, the knob 3 is located at two positions at both ends of the three knobs 3 arranged in FIG. 3, and at this time, the contact switch 5 is connected to the electric circuit. It is in an open state.

  When the driver presses the operating portion 31 of the knob 3, that is, when the operating portion 31 of the central knob 3 among the three knobs 3 arranged in FIG. 3 is pressed, the force acting on the knob 3 is indicated by the arrow in FIG. It acts in the direction shown in This force is transmitted from the knob 3 to the holding portion 22 and further transmitted to the connecting rods 24a and 24b. Thereby, each connecting rod 24a, 24b is elastically deformed, and the holding portion 22 moves downward in FIG. At this time, the elastic force due to the elastic deformation of the connecting rods 24a and 24b acts in a direction in which the connecting rods 24a and 24b and the holding portion 22 are returned to the natural state, that is, in the upward direction of FIG.

  Here, the two connecting rods 24a and 24b constituting the connecting rod group 24 are arranged in parallel and have the same length. Therefore, the both ends of each connecting rod 24a, 24b and the contact point between the guide hole 21 and the holding portion 22 form four vertices of a rectangle. Further, the direction connecting the contact points of the connecting rods 24 a and 24 b and the holding portion 22 coincides with the axial direction of the guide hole 21.

  Therefore, the holding part 22 moves in parallel with the axial direction of the guide hole 21. Thereby, the knob 3 moves downward in FIG. 3 while maintaining the posture in the natural state.

  At this time, the two connecting rods 23 a and 23 b constituting the connecting rod group 23 are also elastically deformed at the same time and perform the function of moving the holding portion 22 in parallel with the axial direction of the guide hole 21 as in the connecting rod group 24.

  By the way, when the position pushed by the driver on the operating portion 31 of the knob 3 is directly above the connecting rod 24a (on the axis including the extension line), both ends of each connecting rod 24a, 24b, the guide hole 21 and Since a force is applied to the rectangle formed by the contact point with the holding portion 22 along the surface thereof, the rectangle, in other words, the guide hole 21, the holding portion 22, and the two connecting rods 24a and 24b are formed. The pseudo link mechanism does not generate a moment that twists it. On the other hand, when the position pushed by the driver on the operation portion 31 of the knob 3 is at a position deviated from directly above the connecting rod 24a, the guide hole 21, the holding portion 22 and the two connecting rods 24a and 24b are formed. A moment that twists the pseudo link mechanism is generated. Therefore, if the connecting rod group for connecting the holding portion 22 to the housing 2 is only the connecting rod group 24, the holding portion 22 is inclined, and as a result, the operation portion 31 of the knob 3 is also moved (in the direction in which the knob 1 in FIG. ) Will tilt.

  However, in the push button switch 1 according to the first embodiment of the present invention, in addition to the connecting rod group 24, another connecting rod group 23 orthogonal to the connecting rod group 24 is arranged. Thereby, the two connecting rod groups 23 and 24 act so as to cancel the bending moment generated in the other party. Therefore, when the driver presses the knob 3, the knob 3 moves downward in FIG. 3 while maintaining the posture in the natural state wherever the operator presses the knob 3. At the same time, the contact switch 5 is pushed down by the holding portion 22.

  When the driver further depresses the knob 3, the contact switch 5 closes the electric circuit. Then, the movement of the knob 3 is stopped by being restricted by a stopper (not shown) built in the contact switch 5.

  When the driver removes his / her finger from the knob 3, the holding portion 22 and the knob 3 are returned to their natural positions by the elastic energy stored in the connecting rods 23a, 23b, 24a and 24b. At the same time, the contact switch 5 opens the electric circuit again by the action of its own return mechanism (for example, using an elastic member).

  As described above, the push button switch 1 is changed from the open state to the closed state to the open state by a series of push and release operations by the driver. As a result, a pulse-like electric signal is generated from the push button switch 1 and a control circuit (not shown) connected to the push button switch 1 receives the signal, and the control circuit is based on that signal. A device (not shown) is controlled to perform a predetermined operation.

  Next, a method for assembling the push button switch 1 according to the first embodiment of the present invention, that is, a method for assembling the air conditioner operation panel 100 including the push button switch 1 will be briefly described.

  First, the knob 3 is fixed to the housing 2. That is, the shaft portion 32 of the knob 3 is fitted and fixed in the through hole 22 a of the holding portion 22 of the housing 2. Here, the method of fixing the shaft portion 32 to the through hole 22a may be any of press-fitting and adhesion.

  Next, the printed circuit board 4 on which the contact switch 5, the control circuit (not shown) and the like are already mounted is fixed to the housing 2.

  Thus, the assembly of the air conditioner operation panel 100 including the push button switch 1 according to the first embodiment of the present invention is completed.

  In the push button switch 1 according to the first embodiment of the present invention described above, the holding portion that is disposed substantially at the center of the guide hole 21 and holds the knob 3 and transmits the axial movement of the knob 3 to the contact switch. 22 and two connecting rod groups (connected rod groups 23 and 24) which are arranged side by side so as to form a group and are composed of a plurality of connecting rods that connect the wall surface of the guide hole 21 and the holding portion 22. The connecting rod groups 23 and 24 are arranged so that their extending directions are orthogonal to each other, and in each of the connecting rod groups 23 and 24, the connecting rods 23a and 23b and the connecting rods 24a and 24b that constitute the connecting rods. Are formed in parallel and with the same length, and the holding portion 22 and the connecting rod groups 23 and 24 are formed integrally with the housing 2.

  In the conventional push button switch, the link mechanism for moving the knob while maintaining its natural state posture is formed as a separate part independent of the housing and knob, and the number of parts and assembly man-hours are reduced. There is a problem that the cost of the push button switch increases and the cost increases. In addition, since the link mechanism is a separate part independent of the housing and knob, there is a gap in each joint, and when the operator presses the knob, the knob moves by the gap and no sense of rigidity is felt, There was a problem that operation feeling with moderation could not be obtained.

  On the other hand, in the push button switch 1 according to the first embodiment of the present invention, the holding portion 22 and the two connecting rod groups as a link mechanism for moving the knob while maintaining the posture in the natural state. 23 and 24 (connection rods 23a, 23b, 24a, 24b) are formed by integral molding with the housing 2.

  Thereby, the number of parts of the push button switch 1 and an assembling man-hour can be reduced significantly.

  Further, since the link mechanism for moving the knob 3 while maintaining the posture in the natural state is integrally formed, there is no gap in the conventional push button switch.

  Thereby, when the operator presses the knob, it is possible to realize a push button switch 1 that can feel a sense of rigidity and moderation and that can provide an excellent operation feeling.

(Second Embodiment)
FIG. 5 shows a cross-sectional view of the push button switch 1 according to the second embodiment of the present invention.

  The push button switch 1 according to the second embodiment of the present invention is obtained by changing the arrangement of the connecting rod groups 23 and 24 with respect to the push button switch 1 according to the first embodiment of the present invention.

  In the pushbutton switch 1 according to the first embodiment of the present invention, the connecting rod groups 23 and 24 are arranged in a direction parallel to each side of the substantially rectangular operating portion 31 of the knob 3 as shown in FIG. . On the other hand, in the pushbutton switch 1 according to the second embodiment of the present invention, the connecting rod groups 23 and 24 are approximately 45 ° with respect to each side of the substantially rectangular operating portion 31 of the knob 3 as shown in FIG. It is arranged to make an angle of. Moreover, also in the pushbutton switch 1 by 2nd Embodiment of this invention, the extending | stretching direction of the connecting rod groups 23 and 24 is orthogonal, as shown in FIG.

  The configuration of the push button switch 1 according to the second embodiment of the present invention also greatly reduces the number of parts and assembly man-hours of the push button switch 1 as in the case of the push button switch 1 according to the first embodiment of the present invention. At the same time, it is possible to realize the push button switch 1 that has a feeling of rigidity and moderation and that provides an excellent operational feeling.

(Third embodiment)
FIG. 6 shows a cross-sectional view of a push button switch 1 according to a third embodiment of the present invention.

  The push button switch 1 according to the third embodiment of the present invention is obtained by adding two groups of connecting rods to the push button switch 1 according to the first embodiment of the present invention. That is, as shown in FIG. 6, the connecting rod groups 25 and 26 are additionally arranged.

  The extending direction of the connecting rod group 25 is the same direction as that of the connecting rod group 23 as shown in FIG. 6, and the extending direction of the connecting rod group 26 is the same direction as that of the connecting rod group 24 as shown in FIG. is there. The number of connecting rods constituting each connecting rod group 25, 26 is two, and in each connecting rod group 25, 26, the two connecting rods constituting it are formed in parallel with each other and the same length. Has been.

  The configuration of the push button switch 1 according to the third embodiment of the present invention also greatly reduces the number of parts and assembly man-hours of the push button switch 1 as in the case of the push button switch 1 according to the first embodiment of the present invention. At the same time, it is possible to realize the push button switch 1 that has a feeling of rigidity and moderation and that provides an excellent operational feeling.

  In order to move the knob 3 while maintaining the posture in the natural state, it is a necessary and sufficient condition that the knob 3 includes two connecting rod groups that intersect with each other, and preferably are orthogonal to each other. In the push button switch 1 according to the embodiment, by providing four connecting rod groups, the knob 3 can be moved while reliably maintaining the posture in the natural state.

(Fourth embodiment)
FIG. 7 shows a front view of an air conditioner operation panel 100 including the push button switch 1 according to the fourth embodiment of the present invention.

  8 shows a sectional view taken along line VIII-VIII in FIG. 7, and FIG. 9 shows a sectional view taken along line IX-IX in FIG.

  The air conditioner operation panel 100 including the push button switch 1 according to the fourth embodiment of the present invention is provided for each push button switch 1 in the air conditioner operation panel 100 including the push button switch 1 according to the first embodiment of the present invention. Instead of the guide hole 21 that has been provided, instead of providing one guide hole 27 as shown in FIGS. 7 and 8, the three knobs 3 are arranged therein.

  In the three push button switches 1, the extending directions of the two connecting rod groups 23, 24 are orthogonal to each other, and the two connecting rods constituting them in each connecting rod group 23, 24 are parallel and the same. The length is the same as that of the push button switch 1 according to the fourth embodiment of the present invention.

  In the air conditioner operation panel 100 having a plurality of push button switches 1, the width dimension (the horizontal dimension in FIG. 7) of the air conditioner operation panel 100 is shortened by using one guide hole 27 of the push button switch 1. Thus, the mountability of the air conditioner operation panel 100 in the passenger compartment can be improved.

  In addition, the configuration of the push button switch 1 according to the fourth embodiment of the present invention also greatly increases the number of parts and assembly man-hours of the push button switch 1 as in the case of the push button switch 1 according to the first embodiment of the present invention. At the same time, it is possible to realize a push button switch 1 that can feel a sense of rigidity and moderation and can provide an excellent operational feeling.

  In the pushbutton switch 1 according to the first to fourth embodiments of the present invention described above, the extending directions of the two connecting rod groups 23 (25) and 24 (26) are orthogonal to each other. However, they do not necessarily have to be orthogonal to each other, and may intersect at an angle other than 90 ° as long as the positions intersect each other.

  Further, in the push button switch 1 according to the first embodiment, the second embodiment, and the fourth embodiment of the present invention described above, two connecting rod groups are provided, but it is not necessary to limit to two groups. Three groups or more may be provided. For example, three connecting rod groups may be arranged at 120 ° intervals.

  Moreover, in the pushbutton switch 1 by 1st Embodiment-4th Embodiment of this invention demonstrated above, although one connection rod group is comprised by two connection rods, it is necessary to restrict to two pieces. There may be three or more. Further, it is not necessary that all the plurality of connecting rod groups included in the push button switch 1 are constituted by the same number of connecting rods, one connecting rod group includes two connecting rods, and the other connecting rod group includes three connecting rods. A connecting rod may be provided.

  In the push button switch 1 according to the first to fourth embodiments of the present invention described above, the two connecting rods constituting the connecting rod group are overlapped in the axial direction of the guide hole 21 (27). However, the two connecting rods do not necessarily overlap. For example, each connecting rod and holding portion 22 are integrally formed with the housing 2, and in order to improve productivity such as maintaining ease of mold removal, two connecting rods constituting the connecting rod group are formed. May be shifted in the axial direction of the guide hole 21 (27).

  In the push button switch 1 according to the first to fourth embodiments of the present invention described above, the two connecting rods constituting the connecting rod group are parallel to each other and have the same length. The two connecting rods are not necessarily parallel to each other and have the same length, although they are arranged so as to overlap in the axial direction of the hole 21 (27). For example, each connecting rod and holding portion 22 are integrally formed with the housing 2, and in order to improve productivity such as maintaining ease of mold removal, two connecting rods constituting the connecting rod group are formed. May be slightly inclined from parallel, or the lengths of the two connecting rods may be slightly changed.

  Moreover, in the pushbutton switch 1 by 1st Embodiment-4th Embodiment of this invention demonstrated above, although the operation part 31 which a driver | operator pushes is formed integrally with the knob 3, the operation part 31 is formed. It is good also as a structure which forms from another components and fixes to the knob 3. FIG. In this way, for example, when a character or figure that is a display design for displaying the function of the push button switch 1 is formed on the operation unit 31, the knob body side that requires a complicated type is one type, and a different display is provided. By manufacturing the necessary types of operation units 31 having designs, it is possible to cope with cost rises.

  Moreover, in the pushbutton switch 1 by 1st Embodiment-4th Embodiment of this invention demonstrated above, although the shape of the operation part 31 of the knob 3 is substantially rectangular, it is not necessary to restrict to a rectangle, other The shape may be a square, a circle, an ellipse, or the like.

  In addition, the air conditioner operation panel 100 including the push button switch 1 according to the first to third embodiments of the present invention described above includes three push button switches 1, but the number needs to be limited to three. There may be one, two, or four or more.

  Moreover, each embodiment described above demonstrates the case where the pushbutton switch 1 mounted in the air conditioner operation panel 100 installed in the vehicle interior of the pushbutton switch 1 by this invention is applied as an example. However, the application need not be limited to the air conditioner operation panel 100, and may be applied to operation switches of other devices mounted on the automobile. Furthermore, it is not necessary to limit its use to vehicles, and it may be applied to, for example, the push button switch 1 mounted on various consumer devices.

It is a front view of the air-conditioner operation panel 100 provided with the pushbutton switch 1 by 1st Embodiment of this invention. It is the II-II sectional view taken on the line in FIG. It is the III-III sectional view taken on the line in FIG. It is the IV-IV sectional view taken on the line in FIG. It is sectional drawing of the air conditioner operation panel 100 provided with the pushbutton switch 1 by the modification of 2nd Embodiment of this invention, and is equivalent to the IV-IV sectional view taken on the line of FIG. It is a front view of the air-conditioner operation panel 100 provided with the pushbutton switch 1 by 3rd Embodiment of this invention. This corresponds to a cross-sectional view taken along line IV-IV in FIG. It is a front view of the air-conditioner operation panel 100 provided with the pushbutton switch 1 by 4th Embodiment of this invention. It is the VIII-VIII sectional view taken on the line in FIG. It is the IX-IX sectional view taken on the line in FIG.

Explanation of symbols

1 Push button switch 2 Housing 2a Operation panel 21 Guide hole 22 Boss (holding part)
22a through hole 23 connecting rod group 23a connecting rod 23b connecting rod 24 connecting rod group 24a connecting rod 24b connecting rod 25 connecting rod group 25a connecting rod 25b connecting rod 26 connecting rod group 26a connecting rod 26b connecting rod 3 knob 31 operation part 32 shaft Part 4 Printed circuit board (circuit board)
5 Contact switch

Claims (4)

A housing with guide holes;
A knob accommodated in the guide hole so as to be movable in the axial direction of the guide hole;
A circuit board disposed on the back of the housing;
A contact switch mounted on the circuit board facing the knob and switching between electrical circuit conduction and cutoff;
A push button switch that transmits the axial movement of the knob to the contact switch to activate the contact switch;
A holding portion that is disposed substantially at the center of the guide hole and holds the knob and transmits axial movement of the knob to the contact switch;
A plurality of connecting rod groups, each of which is arranged side by side to form a group and includes a plurality of connecting rods that connect the wall surface of the guide hole and the holding portion,
The connecting rod group of at least two groups among the plurality of connecting rod groups is arranged such that the extending directions thereof intersect each other,
The holding portion and the plurality of connecting rod groups are formed integrally with the housing,
When the operator presses the knob, each of the connecting rods is elastically deformed and the holding portion moves integrally with the knob.   2. The push button switch according to claim 1, wherein at least two of the connecting rod groups of the plurality of groups are arranged such that their extending directions are orthogonal to each other.   The push button switch according to claim 1 or 2, wherein the plurality of connecting rods constituting the connecting rod group are parallel to each other and have the same length. A plurality of the knobs are accommodated in one guide hole,
The push button switch according to any one of claims 1 to 3, further comprising the contact switch, the holding portion, and a plurality of the connecting rod groups corresponding to the knobs.

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