JPS607517Y2 - Rotating body mounting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting device for a rotating body such as an opening/closing lid or a push button.

For example, it is known that the opening/closing lid is pivotally supported on both side surfaces of the opening/closing lid so as to be freely rotatable.

However, in conventional rotating body mounting devices of this type, the rotating body is attached and detached by utilizing elastic deformation of the mounting portion, and this elasticity causes the rotating body to wobble from side to side.

On the other hand, in order to eliminate this looseness, the mounting structure must be complicated, which increases the number of parts and increases costs.

The present invention has been made in view of these problems, and it is an object of the present invention to provide a rotating body mounting device that has a simple structure, is free from rattling, and has a good operating feel.

The present invention will be described below with reference to embodiments and drawings.

First, a first embodiment of the present invention applied to an opening/closing lid mounting device will be described with reference to FIGS. 1 and 2.

A device body 1 such as a radio receiver is formed with a recess 2 in which various operation dials are housed.
An opening/closing lid 3 made of synthetic resin such as resin is provided.

The opening/closing lid 3 is formed into a plate-like body whose front edge is bent into a substantially L-shape, and a pair of elastic pieces 4 are integrally formed on both side edges thereof.

These elastic pieces are attached to the opening/closing lid 3 at an intermediate position of the opening/closing lid 3.
It extends parallel to the opening/closing lid 3 from this connecting position to the rear end of the opening/closing lid 3.

A boss-shaped bearing portion 6 having a shaft insertion hole 5 is integrally formed at the tip of each of these elastic pieces 4 in a state slightly projecting outward, and each elastic piece 4 is aligned with the axis of the shaft insertion hole 5. It is configured to be elastically deformable in the direction.

On the other hand, on the side of the device body 1, the device body 1 is attached to both side walls 7 of the recess 2.
Shaft-like protrusions 8 are provided integrally with the synthetic resin cabinet, and by inserting these shaft-like protrusions 8 into the shaft insertion holes 5 on the opening/closing lid 3 side, the opening/closing lid 3 can be inserted into these shaft-shaped It is pivoted so that it can rotate freely around Song Ki 8.

In addition, a slit-shaped insertion recess 10 is formed in the rear end edge 9 of the opening/closing lid 3 at its center S, and a projecting piece 11 is formed at a position within the recess 2 corresponding to this insertion recess 10. is provided.

By fitting this projecting piece 11 into the insertion recess 10, the opening/closing lid 3 is prevented from moving in the lateral direction.

Note that a locking projection 13 is integrally provided inside the front edge 12 of the opening/closing lid 3, and this locking projection 13 is locked in a retaining recess 14 provided on the device main body 1 side. The opening/closing lid 3 is held in the closed state by this.

Although not shown in the drawings, the outer peripheral surface of the locking protrusion 13 is configured as a cylindrical surface, and the locking/disengaging is performed by pushing down or pushing up the opening/closing lid 3.

Reference numeral 15 denotes an operating section for engaging and disengaging the locking protrusion 13.

The opening/closing lid 3 is attached to the device main body 1 by elastically deforming the elastic pieces 4 on both sides thereof inwardly.

At this time, the bearing portion 6 provided at the tip of each elastic piece 4 is formed to protrude slightly outward, so that when the opening/closing lid 3 is attached, the bearing portion 6 allows the elastic piece 4 to recover its elasticity. It is in a state where it is pressed against the side wall 7 of the recess 2 by the force.

This reliably prevents the shaft-shaped protrusion 8 from coming out of the shaft insertion hole 5, and also creates friction between the bearing portion 6 and the side wall 7, so that the opening/closing lid 3 can be held at any rotational position. It has become.

Furthermore, each shaft-like protrusion 8 is configured to be tapered, thereby making it easy to insert into the shaft insertion hole 5 and easily coming out from the shaft insertion hole 5 if excessive force is applied to the elastic piece 4. It is done like this.

Therefore, even if the opening/closing M3 is opened/closed carelessly, the elastic piece 4 will hardly break.

In this way, in this example, the opening/closing lid 3 is pivotally supported via the elastic pieces 4 provided on both sides of the opening/closing lid 3, and the protruding piece 11 provided on the device body 1 side is used for inserting the opening/closing lid 3. Recess 1
0, the opening/closing lid 3 is restricted from moving in the lateral direction.

At this time, the play between the projecting piece 11 and the insertion recess 10 is sufficiently absorbed by the elastic deformation of each elastic piece 4.

Therefore, the opening/closing lid 3 has almost no rattling like the conventional one, and has a very good operating feel.

Next, a second embodiment in which the present invention is applied to a push button mounting device will be described with reference to FIGS. 3 and 4.

In this example, an elastic piece is provided on the device main body side.

That is, the cabinet 19 of the device body 18 made of synthetic resin such as ABS resin has a recess 2 for attaching the push button 30.
1, and elastic pieces 23 are integrally formed on both side walls 22 of this recess 21, respectively.

A shaft-like projection 24 is integrally provided at the tip of each elastic piece 23, and each elastic piece 23 is configured to be elastically deformable in the axial direction of this shaft-like projection 24.

On the other hand, the push button 20 is made of synthetic resin such as ABS resin and is formed into a rectangular parallelepiped box shape, and shaft insertion holes 26 are provided in both side walls 25 of the push button 20, respectively.

Further, the rear end wall portion 27 of the push button 20 is integrally formed with a protruding piece 28 at the center thereof, and the recess 21 of the device body 18 has a rear end corresponding to the protruding piece 28. wall 29
An insertion recess 30 is provided therein.

The protruding piece 28 of the push button 20 fits into the insertion recess 30 of the device main body 18, thereby preventing the push button 20 from moving in the lateral direction.

A pressing protrusion is integrally formed on the front end wall 31 of the push button 20, and the pressing protrusion 32 presses an operator 35 of a button switch 34 attached to a printed circuit board 33. ing.

Further, the pressing protrusion 32 of the push button 20 is urged upward by the urging force applied to the operator 35 of the bush switch 34, and is held by being locked to the lower end surface 36 of the cabinet 19.

To attach the push button 20 to the device body 18, first
Insert the pressing protrusion 32 at the tip of 0 into the recess 21,
Next, the rear end of the push button 20 may be pushed into the recess 21.

At this time, if the shaft-like protrusion 24 of the elastic piece 23 is tapered, the elastic piece 23 will be elastically deformed by simply pushing the push button 20, and the shaft-like protrusion 24 can be inserted into the shaft insertion hole 26 of the push button 20. Can be done.

Also in this example, when the push button 20 is attached,
The protruding piece 28 provided on the rear end wall 27 of the push button 20 fits into the insertion recess 30 on the device main body 18 side and restricts the lateral movement of the push button 20. There is almost no rattling from side to side, and the operation feels very good.

Although the embodiments in which the present invention is applied to an opening/closing lid and a push button have been described above, various modifications can be made to the above embodiments based on the technical idea of the present invention.

For example, the pivot positions of each rotating body are not limited to both sides of the rotating body, and may be any two locations within the central axis of rotation of the rotating body.

Further, the convex portion and the concave portion for pivotally supporting the rotating body may be provided on either side.

Furthermore, the present invention can be applied to attachment devices for various rotating bodies other than opening/closing lids and push buttons.

As explained above, in the present invention, the rotating body is pivotally supported at two locations in the axial direction of the central axis of rotation via elastic pieces, and the protruding piece is inserted into the insertion recess at the intermediate part of these pivot positions. This restricts the rotation body from moving in the axial direction of the rotation center axis.

Therefore, it is possible to provide a rotating device that is free from rattling and has a good operating feel.

Moreover, the structure is very simple and can be manufactured at low cost.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of an opening/closing lid attachment device according to a first embodiment of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is an exploded perspective view of a push button attachment device according to a second embodiment of the present invention. , FIG. 4 is a longitudinal sectional view of the same. In addition, in the codes used in the drawings, 3... Opening/closing lid, 4, 23... Elastic piece, 10.30...
・Insertion recess, 11.28... Protruding piece, 20.
...Push the button.

Claims (1)

[Scope of utility model registration request] In a rotating body mounting device in which a rotating body is rotatably attached to a device body at two locations in the axial direction of its rotation center axis, the rotating body and a mounting portion of the device body for attaching the rotating body are connected to each other. At least one of them is provided with elastic pieces that can be displaced in the axial direction of the rotation center shaft, and the rotation body is pivotally supported via these elastic pieces, and
A projecting piece is provided on either the rotary body or the device main body at an intermediate portion between these pivot positions, and an insertion recess into which the projecting piece is inserted is provided on the other. A mounting device for a rotating body, characterized in that the rotating body is prevented from moving in the axial direction of the rotation center axis by fitting into an insertion recess.