JPH0518848Y2 - - Google Patents

Description

[Detailed description of the invention] The mounting structure of the lock button of the invention will be explained according to the following items.

A. Field of industrial application B. Overview of the invention C. Prior art [Figs. 11 and 12] D. Problem that the invention aims to solve E. Means for solving the problem F. Example a. Support [Fig. 1] [Fig. 1 to Fig. 10] b Deep groove [Fig. 1, Fig. 3 to Fig. 10] c Lid body [Fig. 1 to Fig. 5, Fig. 7, Fig. 8
Figure] d Lock button [Figures 1 to 10] e Lock operation G Effects of the invention (A. Field of industrial application) The present invention relates to a new lock button mounting structure. Specifically, the present invention provides a new lock button mounting structure that prevents the lock button from falling off from the support body even if a considerable amount of pressure is applied at the lock position. This is what we are trying to provide.

(B Overview of the invention) The mounting structure of the lock button of the present invention is based on the uneven engagement between the legs formed on the lock button for locking the locked member and the inner surface of the deep groove formed on the support. The lock button is rotatably supported on a support body, and the width of the opening of the deep groove is made slightly larger than the thickness of the leg piece at the part where the leg piece is located when the lock button is in the locked position. This prevents the leg from being deformed and falling off from the support portion (protrusion or recess) of the support body due to the pressure applied to the lock button.

(C Prior Art) [Figures 11 and 12] The mounting structure of the lock button, which is rotated between the lock position and the unlock position, includes leg pieces and supports protruding from both sides of the lock button. There are some that have uneven engagement between them.

An example of such a lock button mounting structure is shown in FIGS. 11 and 12.

Reference numeral a designates a lock button, which is composed of a main part b and leg pieces c, c protruding from both ends of the main part b, which are integrally formed of synthetic resin. An engaging rib d is formed along the front edge of the side of the main portion b on which the leg pieces c, c protrude. Further, protrusions e, e are provided on the outer surface of the distal end of each leg piece c, c.

f is a support, specifically, for example, a cabinet of a radio receiver. Recesses g, g are formed on both inner surfaces of the support portion of the support body f.

The protrusions e, e formed on the legs c, c of the lock button a are connected to the recesses g, formed on the support f,
g is engaged, whereby the lock button a is rotatably supported by the support f.

Reference numeral h denotes a lid that covers a space provided in the support f, for example, a space such as a battery storage part, and this is also rotatably supported by the support f. Further, an engagement groove i is formed along the rotating edge at a position on the outer surface of the lid h near the rotating edge.

j is an O-ring-shaped waterproof packing attached to a position near the periphery of the inner surface of the lid h, and when the lid h is closed, it is compressed between the periphery of the opening l of the space k, This is to keep the space k watertight.

Then, close the lid h and then press the lock button a.
When the front end of the main part b is rotated to a position where it covers the rotating end of the lid h, that is, to the lock position,
The engagement rib d provided on the lock button a engages with the engagement groove i formed on the lid h, thereby moving the lock button a in the opposite direction, that is, toward the unlocked position. Unless a rotational force is applied, the lock button a remains in the position (locked position) covering the tip of the rotating end of the lid h, and therefore the lid h is locked in the closed state. It turns out.

(Problems to be solved by the invention D) In the above-mentioned conventional lock button mounting structure for locking the locked member, considerable pressure is applied to the lock button a to cause it to fall off the support. (Indicated by an arrow in the drawing), there is a risk that the lock button a may fall off the support f.

That is, a waterproof packing j is attached to the lid h, and since this is compressed with the support f, the repulsive force of the waterproof packing j acts in the direction of the arrow in the drawing. Further, although not shown, a terminal is provided on the inner surface of the lid h to make contact with the terminal portion of the battery, and a spring is arranged in the battery storage chamber to ensure contact between the battery and the terminal. Therefore, the repulsive force of this spring also acts in the direction of the arrow shown.

Therefore, when the pressure in the direction of the arrow increases, the main part b and/or the legs c, c of the lock button a will bend as shown by the two-dot chain lines in FIG. There is a problem in that the protrusions e, e that have been removed are removed from the recesses g, g of the support f.

(E. Means for Solving Problems) In order to solve the above-mentioned problems, the lock button mounting structure of the present invention is a lock button for locking a locked member in a predetermined position with respect to a support. The lock button is rotatably supported on the support by engaging the legs of the lock button in the deep groove provided in the support body, and the lock button is in the lock position in the opening of the deep groove. The width of the part where the leg is located at a certain time is made slightly larger than the thickness of the leg, and the width of the part where the leg is located when the lock button is in the unlocked position is made sufficiently larger than the thickness of the leg. It is something.

Therefore, according to the present invention, when the lock button is in the lock position, the leg piece is prevented from moving in the thickness direction by the opening of the deep groove, so that the leg piece is not engaged with the support body. This prevents the support from flexing and falling out of the lock, and will remain locked as long as the pressure on the support does not reach the locking button's breaking value.

In addition, the width of the part where the leg piece is located when the lock button at the opening of the deep groove is in the unlocked position is sufficiently larger than the thickness of the leg piece, so the leg piece can be inserted into the deep groove from this part. , can be engaged with the support. Therefore, the ease of operation for rotatably supporting the lock button on the support body is sufficiently ensured.

(F. Embodiment) The details of the mounting structure of the lock button of the present invention will be explained below according to the illustrated embodiment. In the illustrated embodiment, the present invention is applied as a structure for mounting a lock button for locking a lid for closing an opening of a battery storage recess of a radio receiver in a closed position.

(a Support) [Figures 1 to 10] Reference numeral 1 denotes a radio receiver cabinet, which serves as a support for supporting a lock button, which will be described later.

Reference numeral 2 denotes a chassis arranged and fixed inside the cabinet 1, and a grooved portion opened toward one side is formed on one side edge of the chassis. Thus, a battery storage recess 3 is formed. The rear end of the battery housing recess 3 is closed by a closing plate 4 formed integrally with the chassis 2, and a spring contact 5 is fixed to the inner surface of the closing plate 4.

Reference numeral 6 designates another battery storage recess in the shape of a pit formed next to the battery storage recess 3, and a spring contact 7 is also fixed to the rear end of the battery storage recess.

Reference numeral 8 denotes a substantially oval opening formed near one side of one end wall 9 of the cabinet 1;
The opening 8 has an insertion hole 10 corresponding to the battery storage recess 3 and an insertion hole 11 corresponding to the battery storage recess 6.
are formed side by side.

(b Deep Groove) [Figs. 1, 3 to 10] Reference numerals 12 and 12 indicate deep grooves formed on both sides of the meeting point between one end wall 9 and one side wall 13 of the cabinet 1. Recesses 14, 14 are formed on the outer surfaces of the opposing inner surfaces forming the deep grooves 12, 12, respectively.

Of the openings of the deep grooves 12, 12, a groove width W15 of a portion 15 opened to one side wall 13 is made wider than a groove width W16 of a portion 16 opened to one end wall 9. Note that details of these groove widths W15 and W16 will be described later.

(c Lid) Figures 1 to 5, Figures 7 and 8
Figure] 17 is a lid for closing the opening 8 of the battery storage recesses 3 and 6.

The lid body 17 has a substantially rectangular plate shape, and pin bodies 18, 18 are integrally protruded from both sides of its base end, and these pin bodies 18, 18 are attached to one end of the cabinet 1. an inverted U-shaped support portion 19 integrally protruding from a position close to the opposite end of the opening 8 on the outer surface of the wall 9 and closer to both ends;
As a result, the lid body 17 is rotatably supported on the outer surface of the one end wall 9 of the cabinet 1 in a state in which the openings 8 of the battery housing recesses 3 and 6 can be opened and closed.

A locking piece 20 is provided protruding from the pivoting end of the lid 17. The width of the locked piece 20 is the same as that of the lid 1.
7, and an engagement groove 21 extending in the width direction of the lid body 17 is formed on its outer surface.

Reference numeral 22 denotes an oval protrusion formed integrally on the inner surface of the lid body 17, and an O-ring-shaped waterproof packing 23 is supported on the outside of this protrusion 22. still,
Reference numeral 24 denotes an engagement edge protruding outward from the tip of the protrusion 22 to prevent the waterproof packing 23 from falling off the protrusion 22.

When the lid 17 comes to the position where the opening 8 is closed, the waterproof packing 23 is compressed between the inner circumferential wall 8a of the opening 8 and the protrusion 22 formed on the lid 17, and the opening is closed. The watertightness of the portion 8 will be maintained.

Reference numeral 25 denotes a contact plate attached to a portion of the inner surface of the lid body 17 surrounded by the protrusions 22.

(d Lock Button) [Figures 1 to 10] 26 is a lock button, which is made of synthetic resin.

Reference numeral 27 denotes the main part of the lock button 26, in which two elongated plate pieces 28 and 29 are butted against each other at one side edge along the longitudinal direction and are connected to form a V-shape in cross section. Therefore, a V-shaped groove is formed inside the main portion 17.

A long engagement rib 30 is formed approximately at the center of the inner surface of the outer edge of one of the plate pieces 28 along the outer edge.

31, 31 extend from both ends of the main portion 27 in the same direction, that is, approximately in the direction facing the opening of the V-shaped groove formed by the two plate pieces 28, 29. These leg pieces are integrally formed with the portion 27, and protrusions 32, 32 protruding outward are integrally formed at the tips of these leg pieces 31, 31.

The groove width W16 of the opening of the deep groove 12, which is opened on the side of the one end wall 9 of the cabinet 1, is the width W16 of the opening of the deep groove 12, which is the groove width W16 of the deep groove 12 opened on the one end wall 9 side of the cabinet 1.
The thickness is slightly larger than that of 1. That is, it is sufficient if the groove width is large enough to allow the leg pieces 31, 31 to move along the openings 16, 16. Further, the groove width W of the opening 15 opened on the side wall 13 side
15 is sufficiently larger than the thickness of the leg pieces 31, 31,
For example, the thickness of the leg pieces 31, 31 and the protrusions 32, 32
The value is set to be larger than the sum of the amount of protrusion and the amount of protrusion.

When the lock button 26 is supported on the cabinet 1, the leg pieces 31, 31 are bent slightly so that their tips approach each other slightly, and the opening 1 is held in place.
5 and 15 into the deep grooves 12 and 12 (see FIG. 9). In this case, the openings 15, 15
Since the groove widths W15 and W15 are larger than the sum of the thickness of the leg pieces 31 and the amount of protrusion of the protrusions 32 and 32, the leg pieces 31 and 31 are placed in the deep groove 1.
2, 12 can be easily inserted.
The protrusions 32, 32 of the leg pieces 31, 31 are located in the recesses 14, 14 formed in the deep grooves 12, 12.
If the force that was bending the leg pieces 31, 31 is removed when the leg pieces 31,
1 returns to its original state due to its elasticity, and the protrusion 3
2 and 32 engage with the recesses 14 and 14. Thereby, the lock button 26 is rotatably supported by the cabinet 1.

(e-Lock Operation) The lock operation by the lock button 26 is performed as follows.

First, lock the lock button 26 so that its legs 31, 31 are in the openings 15, 1 of the deep grooves 12, 12, which are larger in groove width.
5 (see Figures 3, 4, and 7). This is called the "unlock position."

Then, the lid 17 is rotated so that the opening 8 is closed (see FIG. 5).

While maintaining the state of the lid body 17, rotate the lock button 26 so that one plate piece 28 forming the main part 27 covers the locked piece 20 of the lid body 17. (See Figures 2, 6 and 8). Then, the engagement rib 30 formed on the plate piece 27 engages the engagement groove 21 formed on the locked piece 20.
is engaged with. The position of the lock button 26 in this state is called the "lock position."

When the lid 17 is closed, the spring contacts 5 and 7 in the battery storage recesses 3 and 6 are compressed by the battery (not shown), and the repulsive force is applied to the lid 17 via the battery and the contact plate 25 to push the spring contacts 5 and 7 into the open position. It acts as a force that rotates the

However, since the locked piece 20 provided at the pivoting end of the lid 17 is held down by the main portion 27 of the lock button 26, the lid 17 is prevented from rotating to the open position. Therefore, the lid 17 is locked in the closed position.

The pressure exerted by the spring contacts 5, 7 and the waterproof packing 23 is applied to the lock button 26 through the lid 17, and acts to cause the lock button 26 to fall off the cabinet 1. 31 is inserted through the portions 16, 16 that are wide enough to allow them to pass through, thereby preventing the leg pieces 31, 31 from bending. The provided protrusions 32, 32 do not come off from the recesses 14, 14 provided in the cabinet 1, and therefore,
Even if considerable pressure is applied to the lock button 26, the lock button 26 will not fall off from the cabinet 1.

To release the above lock, press lock button 2.
6 to the unlocked position.

(G. Effect of the device) As is clear from the above description, the mounting structure of the lock button of the present invention is a lock button for locking a locked member in a predetermined position with respect to a support, and the lock button has a locking position. In a lock button mounting structure, the lock button is supported by a support body so as to be rotatable between the lock release position and the lock button, and is subjected to pressure in the direction of causing the lock button to fall off from the support body at the lock position. Leg pieces protruding in the same direction are formed, a deep groove into which the leg piece is inserted is formed in the support, a protrusion is engaged with one of the leg piece and an inner surface of the deep groove, and the protrusion is engaged with the other. A recessed portion is formed, and the locking button is rotatably supported by the support by engagement of the protruding portion and the recessed portion, and the width of the opening of the deep groove is equal to the width when the locking button is in the locked position. The thickness is slightly larger than the thickness of the leg at the part where the leg is located when the lock button is in the unlocked position, and the thickness is sufficiently larger than the thickness of the leg at the part where the leg is located when the lock button is in the unlocked position. .

Therefore, according to the present invention, when the lock button is in the lock position, the leg piece is prevented from moving in the thickness direction by the opening of the deep groove.
The legs are prevented from flexing out of engagement with the support and will remain locked as long as the pressure on the support does not reach the breaking value of the lock button.

In addition, the width of the part where the leg piece is located when the lock button at the opening of the deep groove is in the unlocked position is sufficiently larger than the thickness of the leg piece, so the leg piece can be inserted into the deep groove from this part. , can be engaged with the support. Therefore, the ease of operation for rotatably supporting the lock button on the support body is sufficiently ensured.

[Brief explanation of the drawing]

Figures 1 to 10 show an example in which the lock button mounting structure of the present invention is applied to a lock button mounting structure for locking the closed state of a lid that closes a battery storage recess of a radio receiver. Figure 1 is an exploded perspective view, Figure 2 is a vertical sectional view of the radio receiver cabinet, and Figure 3 is a diagram showing the lock button in the unlocked position and the lid open. The arrow diagram in Figure 4 shows the lock button in the unlocked position and the lid is open, and the arrow diagram in Figure 5 shows the lock button in the unlocked position.
In addition, the arrow diagram in FIG. 2 shows the lid closed, FIG. 6 shows the arrow diagram in FIG. 2 with the lid closed and the lock button in the lock position, and FIG.
8 is a perspective view corresponding to the state shown in FIG. 6, FIGS. 9 and 10 are plan views showing the procedure for attaching the lock button to the support, and FIGS. Figure 12 shows an example of a conventional lock button mounting structure, and Figure 11 is a longitudinal sectional view, and Figure 1
FIG. 2 is a sectional view taken along line XII-XII in FIG. 11. Explanation of symbols, 1...Support, 12...Deep groove, 1
4... recess, 15... wide opening, 16...
Narrow opening, 17... Locked member, 26...
...Lock button, 31...Leg piece, 32...Protrusion.

Claims (1)

[Claims for Utility Model Registration] A lock button for locking a locked member in a predetermined position relative to a support, the lock button being supported by the support so as to be rotatable between a locked position and an unlocked position. In a mounting structure for a lock button that receives pressure in the direction of causing it to fall off from a support in the lock position, the lock button has legs protruding from both sides thereof in the same direction, and the support has the legs. A deep groove is formed into which the leg is inserted, a protrusion is formed on one side of the leg piece and the inner surface of the deep groove, and a recess into which the protrusion is engaged is formed on the other side, and the protrusion and the recess are engaged with each other. Accordingly, the locking button is rotatably supported by the support, and the width of the opening of the deep groove is slightly larger than the thickness of the leg at the portion where the leg is located when the locking button is in the locked position, This lock button mounting structure is characterized in that the thickness of the leg piece is sufficiently larger than the thickness of the leg piece at the part where the leg piece is located when the lock button is in the unlocked position.