JP2001256862A - Support structure of seesaw knob - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support structure of a seesaw knob wherein a small number of parts are required, looseness of the seesaw knob caused by setting of a member is not generated, and an inexpensive mold can be used. SOLUTION: The support structure of the seesaw knob 1 is supported by a control panel 4 so as to freely tilt, and the structure is tilted by being pushed by a hand, and then actuates a switch 3 arranged behind. The seesaw knob 1 is supported on the control panel 4 via a straight beam 1b capable of elastically deformed. The straight beam 1b is elastically deformed when the seesaw knob 1 is tilted, and it is constituted to be elastically reverted when the hand is detached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seesaw knob holding structure, and more particularly to a seesaw knob holding structure characterized by a structure having a self-recovery function.

[0002]

2. Description of the Related Art Conventionally, there has been known a seesaw knob which is supported by an operation panel so as to be tiltable and operates a switch by tilting. An example of a conventional seesaw knob holding structure will be described with reference to FIG. The seesaw knob 6 shown in the figure has a hole provided in the boss 6a fitted to a shaft 4c provided in the operation panel 4 and supported by the operation panel 4 to be tiltable.

[0005] Tact switches 3 are mounted on the printed circuit board 2 disposed behind the seesaw knob 6. The seesaw knob 6 is provided with bosses 6c, 6c on the upper and lower sides of the back, and when the upper or lower part of the seesaw knob 6 is pressed, it tilts clockwise or counterclockwise to operate any of the tact switches 3,3. Let it.

When the seesaw knob 6 is not operated, FIG.
Seesaw knob 6 so that it is maintained in the neutral position as shown in
A cushion 7 is interposed between the control panel 4 and the operation panel 4. That is, the seesaw knob 6 is returned to the neutral position by the elasticity of the cushion 7.

The structure for holding the seesaw knob has a problem that the number of parts is increased due to the necessity of the cushion 7, and the cost of parts and the number of assembling steps are increased. further,
When used for a long period of time, there is also a problem that the cushion 7 is loosened and the seesaw knob 6 becomes loose at the neutral position.

FIG. 6 is a plan view showing a partial cross section of another example of a conventional seesaw knob holding structure, and FIG. 7 is a side view showing a partial cross section of the conventional seesaw knob holding structure. The seesaw knob 8 shown in the figure has a hole provided in the boss 8a fitted to a shaft 4c provided in the operation panel 4 and supported by the operation panel 4 to be tiltable.

[0007] Tact switches 3 are mounted on the printed circuit board 2 disposed behind the seesaw knob 8. The seesaw knob 8 is provided with bosses 8c, 8c on the upper and lower sides of the back. When the upper or lower part of the seesaw knob 8 is pressed, the seesaw knob 8 is tilted clockwise or counterclockwise in FIG. Or actuate.

Hinges 8b having bent portions are provided behind the seesaw knob 8 so as to be maintained at the neutral position when the seesaw knob 8 is not operated, and the tip of the hinge 8b comes into contact with the operation panel 4 in a natural state. ing. That is, when the seesaw knob 8 tilts, the hinge 8b is deformed, but when the hand is released, the seesaw knob 8 is returned to the neutral position by the elasticity of the hinge 8b.

In the structure for holding the seesaw knob, no extra parts such as cushions are required, and the number of parts is reduced. Further, if the hinge 8b is deformed within the elastic limit, there is no problem in setting the bent hinge. Therefore, there is a problem that a mold for molding the seesaw knob becomes large in size, and the number of steps for setting the mold in the molding machine also increases.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to reduce the number of parts and cause rattling of the seesaw knob due to settling of members. It is another object of the present invention to provide a seesaw knob holding structure that can use an inexpensive metal mold.

[0011]

SUMMARY OF THE INVENTION A holding structure for a seesaw knob according to the present invention is a holding structure for a seesaw knob which is tiltably held by an operation panel, tilts by pushing by hand, and operates a switch arranged behind the same. The seesaw knob is held by an operation panel via an elastically deformable straight beam, and the straight beam is elastically deformed when the seesaw knob is tilted and is elastically restored when the hand is released.

In the holding structure for the seesaw knob, the straight beam is a support beam at both ends.

Further, in the holding structure for the seesaw knob, the straight beam is a cantilever.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A holding structure for a seesaw knob according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a holding structure of a seesaw knob according to a first embodiment of the present invention, FIG. 2A is a side view showing a partial cross section of the holding structure of the seesaw knob, and FIG. It is a side view which shows the partial cross section of other states of the holding structure of the seesaw knob.

The seesaw knob 1 shown in FIG.
a, 1a are integrally formed via both end support beams 1b. The bosses 1a, 1a are fastened to the operation panel 4 shown in FIG. 2, and a recess 1d formed at the rear of the seesaw knob 1 is supported by a boss 4a provided on the operation panel 4,
The seesaw knob 1 is supported on the operation panel 4 so as to be tiltable.

Tact switches 3 are attached to a printed circuit board 2 arranged behind the seesaw knob 1. The seesaw knob 1 is provided with bosses 1c, 1c on the upper and lower sides thereof, and when the upper or lower part of the seesaw knob 1 is pressed, the seesaw knob 1 is tilted clockwise or counterclockwise in FIG. Or actuate.

When the seesaw knob 1 is not operated, the both-end supporting beam 1b is in a natural state, and the seesaw knob 1 is maintained at a neutral position as shown in FIG. FIG. 2B shows a state where the upper part of the seesaw knob 1 is pushed in the direction of the arrow and tilted clockwise.

Since the deformation of the support beams 1b at both ends is within the elastic limit, there is no danger even when used for a long time. Further, since the seesaw knob 1 has no bent portion, the mold used for molding is simplified.

FIG. 3 is a perspective view showing a holding structure of a seesaw knob according to a second embodiment of the present invention. FIG. 4 (a) is a side view showing a partial cross section of the holding structure of the seesaw knob.
(B) is a side view which shows the partial cross section of another state of the holding structure of the seesaw knob.

The seesaw knob 5 shown in FIG.
a and 5a are integrally formed via a cantilever 5b.
The bosses 5a, 5a are fastened to the operation panel 4 shown in FIG.
The rear upper portion of the seesaw knob 5 is in contact with a rib 4b provided on the operation panel 4, and the seesaw knob 5 is
It is supported to be tiltable.

A tact switch 3 is mounted on the printed circuit board 2 disposed behind the seesaw knob 5. A boss 5c is provided on the lower part of the seesaw knob 5 at the back, and when the lower part of the seesaw knob 5 is pressed, the seesaw knob 5 tilts counterclockwise in FIG.

When the seesaw knob 5 is not operated, the cantilever 5b is in a natural state, and the seesaw knob 5 is kept in an inactive state as shown in FIG. FIG. 4B shows a state in which the lower part of the seesaw knob 5 is pushed in the direction of the arrow and tilted counterclockwise to operate the tact switch 3.

Since the deformation of the cantilever 5b is within the elastic limit, there is no danger even if it is used for a long time. Further, since the seesaw knob 5 has no bent portion, the mold used for molding is simplified.

[0024]

According to the seesaw knob holding structure of the present invention, the number of parts is reduced as compared with the conventional one,
Parts and assembly costs are reduced.

Further, the deformation of the straight beam can be kept within the elastic limit, and it does not become severe even if it is used for a long time. Further, since the seesaw knob has no bent portion, the mold used for molding is simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a holding structure of a seesaw knob according to a first embodiment of the present invention.

2 (a) is a side view showing a partial cross section of the holding structure of the seesaw knob, and FIG. 2 (b) is a side view showing a partial cross section of another state of the holding structure of the seesaw knob. is there.

FIG. 3 is a perspective view showing a holding structure of a seesaw knob according to a second embodiment of the present invention.

4 (a) is a side view showing a partial cross section of the holding structure of the seesaw knob, and FIG. 4 (b) is a side view showing a partial cross section of another state of the holding structure of the seesaw knob. is there.

FIG. 5 is a side view showing a partial cross section of an example of a conventional seesaw knob holding structure.

FIG. 6 is a plan view showing a partial cross section of another example of a conventional seesaw knob holding structure.

FIG. 7 is a side view showing a partial cross section of a holding structure of the seesaw knob.

[Explanation of symbols]

1 seesaw knob, 1a boss, 1b support beam at both ends, 1
c boss, 1d recess 2 printed circuit board 3 tact switch 4 operation panel, 4a boss, 4b rib, 4c shaft 5 seesaw knob, 5a boss, 5b cantilever, 5c
Boss 6 Seesaw knob, 6a boss, 6c Boss 7 Cushion 8 Seesaw knob, 8a boss, 8b hinge, 8c
boss

Claims (3)

[Claims] 1. A seesaw knob holding structure which is tiltably held by an operation panel, tilts by pushing by hand, and activates a switch arranged behind the seesaw knob, wherein the seesaw knob is held via a straight beam which can be elastically deformed. A seesaw knob holding structure, wherein the straight beam is elastically deformed when the operation panel is held and the seesaw knob is tilted, and is elastically restored when the hand is released. 2. The straight beam according to claim 1, wherein the straight beam is a support beam at both ends.
Holding structure of seesaw knob. 3. The seesaw knob holding structure according to claim 1, wherein the straight beam is a cantilever.