JPH089857Y2 - Switch support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a switch mechanism in which a push button portion is pushed by a rotating object to be detected, and in particular, a push button portion is formed according to a rotation locus of the object to be detected. The present invention relates to a switch support device capable of preventing a sliding failure due to a lateral load.

[Prior Art] FIG. 4 shows a switch supporting device.

The switch body 40 is fixed to the chassis 42, and the push button portion 41 projects from the switch body 40. This switch is, for example, a push lock switch, and the push button unit 41
Is locked when pushed into the switch body 40,
At this time, the switch circuit is turned on. In this state, push button section 41
When is pressed, the lock of the push button portion 41 is released, and the push button portion 41 is projected by the built-in spring. At the same time, the switch circuit
It turns off. Reference numeral 43 is an object to be detected. This detected object 43
Rotates about the point O. The detected body 43 rotates about O and hits the push button portion 41,
When the detected body 43 is further pressed, the push button portion 41 is retracted and locked, and the switch circuit is turned on.

[Problems to be solved by the device]

However, in the conventional example shown in FIG. 4, when the detected body 43 is pushed by after hitting the push button portion 41, a tangential force F is applied to the tip of the push button portion 41. Then, the push button portion 41 generates a turning force in the θ direction by the force F. Therefore, the push button section 41
Will slide on the switch body 40 while receiving a lateral load, which may increase sliding resistance, cause wear and the like, or cause malfunction. Further, as the detected body 43 rotates, the detected body 43 and the push button section 41 slide, which may cause abrasion of the detected body 43 or the push button section 41.

The present invention solves the above-mentioned conventional problems, and prevents a lateral load from being generated in the push button portion when a rotationally moving detected object hits, thereby increasing the sliding resistance of the push button portion and each portion. It is an object of the present invention to provide a switch support device capable of preventing wear of the switch.

[Means for solving the problem]

In the switch support device according to the present invention, the switch main body is supported by the chassis, and the push button portion protruding from the switch main body is pressed by the rotationally moving object to be detected to operate. When the object to be detected hits the push button portion, the object is supported so that it can be tilted following the rotation of the object to be detected.

[Action]

In the above means, the detected body rotates and hits the push button portion,
When the body to be detected rotates as it is, the switch body tilts with respect to the chassis following this rotation operation. Therefore, the lateral load does not act on the push button portion or is reduced even if it acts, and it is possible to prevent the sliding resistance and wear of the push button portion from increasing, and also to prevent malfunction. In addition, it is possible to prevent wear between the push button portion and the detected object.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an in-vehicle display device as an example of a device in which a switch supporting device according to the present invention is mounted, and FIGS. 2 (A) and 2 (B) are sectional views showing the switch supporting device according to operations. The figure is a vertical cross-sectional view of a vehicle-mounted display device.

In FIG. 1, reference numeral 1 is an instrument panel in the vehicle compartment, and 2 is a windshield.

Reference numeral 10 is a vehicle-mounted display device. This in-vehicle display device
The chassis 11 of 10 is embedded in the upper surface of the instrument panel 1, the upper side 11a of the chassis 11 substantially coincides with the upper surface 1a of the instrument panel 1, and the front side 11b substantially corresponds to the front surface 1b of the instrument panel 1. Match. The chassis 11 has an opening A from its upper surface to its front surface. Reference numeral 12 is a cover top that covers the opening A, and 13 is a display member including a liquid crystal display. The front surface of the display member 13 is the display surface 13a.
Support arms 12a are integrally formed on both sides of the cover top 12. As shown in FIG. 3, the base end 12b of the support arm 12a is rotatably supported by a support shaft 14 provided on the chassis 11. Therefore, the cover top 12 rotates about the support shaft 14 (the rotation locus is indicated by α). In this rotation trajectory α, the posture shown by the solid line in FIG. 3 is a state in which the cover top 12 completely covers the opening A. Further, the posture shown by the chain line in FIG. 3 is a state in which the cover top 12 stands up with respect to the chassis 11.

On the other hand, both sides of the display member 13 are rotatably supported by the support shaft 16 with respect to the chassis 11. This support shaft 16
Is located on the left side of the support shaft 14 of the cover top 12 in the figure. That is, the support shaft 16 of the display member 13 is different from the support shaft 12 of the cover top 12 in the open state.
It is located closer than 14. This display device
The locus of rotation of 13 is indicated by β. The rotation locus β is different from the rotation locus α of the cover top 12.

As shown in FIG. 3, a guide groove 12c is formed on the inner surface of the cover top 12, and a pin-shaped protrusion 13b provided on the upper rear end of the display member 13 is slidable in the guide groove 12c. Has been inserted. The cover top 12 and the display member 13 are
The guide groove 12c and the protrusion 13b are connected to each other. As described above, since the rotation locus α of the cover top 12 and the rotation locus β of the display member 13 are different from each other, the cover top 12 and the display member 13 are different from the solid line state to the chain line state in FIG. When moving, the protrusion 13b slides in the guide groove 12c, and the cover top 12 and the display member 13 move relative to each other.

As shown in FIG. 1, a mechanism such as a motor M and a reduction gear is arranged in the chassis 11 so that the display member 13 is driven between a position shown by a solid line and a position shown by a chain line in FIG. It is designed to be driven. The cover top 12 is adapted to rotate following the rotating operation of the display member 13. Also, the motor M shown in FIG.
Internal mechanisms such as are hidden by a suitable cover.
Note that both the cover top 12 and the display member 13 may be rotationally driven by the motor M. In this case, since the rotation angle of the cover top 12 and the rotation angle of the display member 13 are different, the difference between the drive angles of the two is adjusted by the gear ratio or the like. Alternatively, the cover top 12 may be driven by the motor M and the display member 13 may follow the structure.

As shown in FIGS. 1 and 3, the vehicle-mounted display device is provided with a keyboard 21. Both side portions of the keyboard 21 are supported by a rotating arm 22. The rotating arm 22 is rotatably supported by shafts 23 provided on the inner surfaces of both side walls of the chassis 11. As a result, the keyboard 21 and the rotating arm 22 can be housed in the chassis 11 as shown by the solid line in FIG.
In this housed state, the housed display member 13 is overlaid on the keyboard 21. Further, when the keyboard 21 and the rotating arm 22 are rotated to the outside of the chassis 11, the posture shown in FIG. 1 is obtained.

There is a push lock switch 30 on the bottom of the chassis 11.
Is provided. A push button portion 31 projects upward from the main body case 30a of the push lock switch 30. As shown in FIG. 3, the push button portion 31 is in a position to be pushed by the keyboard 21 housed in the chassis 11. When the push button portion 31 is pushed into the main body case 30a, the internal switch circuit is turned on and the push button portion 31 is locked in the pushed state. When the push button portion 31 is pushed from this state, the lock is released, and the push button portion 31 is released by the built-in spring.
And the switch circuit is turned off.

As shown in FIGS. 2A and 2B, the main body case 30
The a is supported so as to be tiltable in the γ direction with the support pin 18 as a fulcrum. The support pin 18 is provided on the bracket 11c protruding downward from the chassis 11. A guide frame 33 is fixed to the lower side of the chassis 11, and the upper portion of the switch body case 30a is inserted into the guide frame 33. The inside of the guide frame 33 is an elongated hole in the left-right direction in FIG. 2, and the main body case 30a is guided in the guide frame 33 so as to be able to fall in the γ direction. Both left and right inner walls 33a and 33b of the guide frame 33 serve as stoppers for the main body case 33a. As shown in FIG. 2 (B),
When the upper portion of the main body case 30a is in contact with the right inner wall 33a of the guide frame 33, the push lock switch 30 is located in a posture (on the line O--O) substantially vertical to the chassis 11. As shown in FIG. 2 (A), when the upper part of the main body case 30a is in contact with the left inner wall 33b of the guide frame 33, the push-lock switch 30 moves to the left with respect to the vertical line (OO) with respect to the chassis 11. Incline only at the angle. Also the main body case 30a
A spring 34 is interposed between the right side surface of the push-lock switch 30 and the guide frame 33, and the biasing force of the spring 33 causes the push-lock switch 30 to be constantly biased in the posture shown in FIG. 2 (A). That is, as shown in FIG. 1, when the keyboard 21 is taken out of the chassis 11, the push button portion 31 of the push lock switch 30 is always tilted in the left direction of the drawing, that is, in the direction of the display member 13 in FIG. Will be.

Next, the detection operation of the push lock switch 30 will be described.

When the cover top 12 is open, pressing the key top 21 stored in the chassis 11 as shown by the solid line in FIG. 3 unlocks the push button part 31 that was pushed in, and the built-in spring As a result, the push button portion 31 is projected and the keyboard 21 is lifted. Therefore, the keyboard 21 can be held by a finger and taken out as shown in FIG. As described above, when the push button portion 31 projects and the switch circuit is turned off, the motor M is not driven and the cover top 12
In addition, the mode of the device is set so that the display member 13 does not close.

Next, when the keyboard 21 is housed in the chassis, the keyboard 21 is rotated inwardly of the chassis about the axis 23. At this time, as shown in FIG. The back surface of the button touches the upper end of the push button portion 31 of the push lock switch 30. Keyboard 21 axis 23
When the keyboard 21 is further pressed with a finger, a force F in the rotational tangential direction acts on the push button portion 31 because the rotation is about the center. When the keyboard 21 is pushed in as it is, the push lock switch 30 is rotated clockwise by the force F. Then, when the push button portion 31 is completely pushed in by the keyboard 21 or before the push button portion 31, as shown in FIG. 2 (B), the main body case 30a of the push lock switch 30 is attached to the right inner wall 33a of the guide frame 33. The switch substantially coincides with the vertical line OO of the chassis 11. Then, the push button portion 31 is locked and the switch circuit is turned on. This ON signal enters a mode in which the cover top 12 and the display member 13 can rotate in the storage direction.

As described above, since the push button portion 31 rotates following the keyboard 21 while the keyboard 21 rotates, it is possible to prevent an increase in sliding resistance without an unnecessary lateral load acting on the push button portion 31. Become. Further, damage due to friction between the push button portion 31 and the main body case 30a will not occur. Further, sliding between the push button portion 31 and the keyboard 21 does not occur, and wear of both does not occur.

In the illustrated embodiment, the switch support device of the present invention is mounted on the in-vehicle display device, but it can be mounted on other devices. Further, it can be applied to a normal push button type switch instead of the push lock switch.

〔effect〕

As described above, according to the present invention, it is possible to prevent lateral load from affecting the push button portion when the push button portion is pushed due to this rotation locus when the detected body is rotated. Sliding friction will not occur. Also, the operation of the push button section becomes smooth. Further, wear due to sliding between the push button portion and the detected object does not occur.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG. 1 is a perspective view showing a vehicle-mounted display device equipped with a switch supporting device according to the present invention installed on an instrument panel in a vehicle compartment. (A) and (B) are cross-sectional views showing the switch support device for each operation, FIG. 3 is a vertical cross-sectional view of a vehicle-mounted display device, and FIG. 4 is a side view showing a conventional switch support device. 1 ... Instrument panel, 2 ... Windshield, 10 ... In-vehicle display device, 11 ... Chassis, 12 ... Cover top, 13 ... Display member, 21 ... Keyboard to be detected, 30 ... … Push lock switch, 30a …… Main body case, 31 …… Push button part, 33 …… Guide frame, 34 …… Spring.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-63507 (JP, A) JP-A-1-232625 (JP, A) Actual opening 47-25769 (JP, U) Actual opening 50- 109867 (JP, U) Actually opened 51-66781 (JP, U) Actually opened 55-89222 (JP, U) Actually opened 57-72353 (JP, U) Actually opened 58-66525 (JP, U) Actual opening 59-18642 (JP, U) Actual opening 60-98220 (JP, U) Actual opening 49-12745 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A switch main body is supported by a chassis, and a push button portion projecting from the switch main body is pushed by a rotating object to be detected to operate, and the switch main body has a push button portion. A switch support device that is supported so that it can be tilted following the rotation of the detected body when the detected body hits the body.