JPS6336408Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an operation button device for electronic equipment such as a video tape recorder (VTR).

(b) Prior art The operation button device used in VTR etc. is generally
The structure is as shown in the figure. That is, the button 2 is fixed to the panel 1 having the through hole 1a by welding the boss 1b. A plated cap portion 2a is fitted into the button 2, and this cap portion 2a is inserted into the through hole 1.
It protrudes a little from a to the front of the panel 1. When the cap part 2a is pushed, the elastic part 2b is deformed, and the switch 3 provided at the rear of the panel is operated by the operating rod.

The plated cap part 2a is used for
This is to prevent cracks from occurring in the plating layer due to deformation of the elastic portion 2b when the entire button is plated with metal (ultimately causing problems in terms of appearance). For this reason, the operation button device shown in FIG. 1 has poor workability in the assembly section.

Further, fixing the button 2 to the panel 1 requires welding the boss 1b. This welding work is also tedious. If the operation surface of the panel is inclined (for example, as shown in FIG. 2), a boss cannot be formed perpendicularly to the inclined surface on the mold, and the button will not be fixed properly. Another disadvantage of fixing by welding is that it occupies a large amount of space.

(c) Purpose of the invention The present invention has been made in view of the above points, and its purpose is to provide an operation button device with excellent assembly workability.

Furthermore, an operation button device suitable for equipment having an inclined panel is provided.

(d) Structure of the invention In the present invention, the button body that includes the pressing portion that protrudes from the through hole of the panel does not include the elastic portion. The arm part formed integrally with the pressing part has an engaging part (shaft or recess) for engaging with the panel, and the button body is attached to the panel so as to be rotatable about the engaging part. The panel is provided with a through hole through which the pressing part of the button body protrudes, and a receiving part for the engaging part of the button body, and when the engaging part of the button body and the receiving part of the panel are engaged, the button body is pressed into the panel. mounted on. The button body is given a restoring force by an elastic member arranged on the panel (energizing the end of the arm), and the operating section operates a switch arranged at the rear of the panel by pressing the pressing section.

(e) Embodiment An embodiment of the present invention will be described below with reference to the drawings. Figure 2 A is a side view of the panel, B and C are front views showing part of the panel, Figure 3 A and B are back views showing part of the panel, and Figure 4 A is a cross section in Figure 2 B. Figures 5A and 5B are cross-sectional views at C, respectively.
The cross-sectional views corresponding to Figures A and B, Figures 6, 7, and 8 are diagrams showing different shapes of the button body, respectively.
In each case, A is a front view, B is a side view, C is a bottom view, and D is a sectional view.

In the figure, 4 is the panel 5, 6, 7 is the button body, 8
is an elastic member.

The front surface of the panel 4 has a vertical portion 4a and a 45° inclined portion 4b, as shown in FIG. 2A. The inclined portion 4b is provided with a plurality of through holes 9, 10, in which the operating portion of the operating button device is formed. The panel 4 in this embodiment can be roughly divided into two types of operation button devices, namely, the operation mode of the VTR (playback,
The station is equipped with a device for specifying (stop, fast forward, etc.) and a channel selection device. B and C in FIG. 2 are front views showing the operation mode designation device and the channel selection device, respectively.

Although not shown, a decorative board is attached to the front of the panel 4. Vertical portion 4a, inclined portion 4b
Separate decorative boards are fixed to the intermediate portion 4c between the two. 11 is a groove for fitting and fixing this decorative board.

Reference numeral 12 in the intermediate portion 4c shown in FIG. 2B is a through hole through which display light emitting light and light from elements are guided from the rear of the panel to the front of the panel. For this reason, a translucent resin board is used as the decorative board disposed in the intermediate portion 4c. Reference numeral 13 is a recess, and a receiving portion for a button body, which will be described later, is formed on the back side. The decorative board mentioned above is
It can also be attached to hide the recess 13 created to simplify the structure of the receiving part.

In the channel selection device part (see Figure 2 C), the button bodies (described later) have different shapes and numbers, so the through hole 1
0's are arranged in two columns. 14 is a through hole, 15 is a recess, and a receiving portion is formed on the back side.
A through hole 26 in the vertical portion 4a is used to display the channel selection. Note that 4d is a member for fixing the panel 4 to the main body chassis of the VTR.

The shape of the panel 4 can be further understood by referring to the rear view of FIG. 3 and the sectional view of FIG. 4. As shown in A of FIGS. 3 and 4, which corresponds to side A of FIG.
7 is provided. The receiving portion 17 is provided with a recess (or through hole) 17a (see FIG. 4A),
This recess 17a is continuous with the recess 13 described above. An elastic member such as foamed rubber, which will be described later, is fixed to the thick portion 16.

B in FIGS. 3 and 4, which corresponds to the B side in FIG. 2, indicates the channel selection device side. Even in this part, the vertical part 4a
A thick portion 18 is provided on the back side 4a' of the
Similarly, an elastic member is fixed. Back side of sloping part 4
The through hole 11' of b' is a groove 11 arranged in the above-mentioned inclined part for fixing the decorative board. 19 is a receiving part that engages with the button body, and the recess (or through hole) 19 in the receiving part
a is connected to the above-mentioned through hole 4. 20 is a groove into which an arm of a button body to be described later is fitted. That is, since the portion 21 is slightly thicker, the groove 20 is formed.

Next, the button body will be explained. The shape of a button body (hereinafter referred to as a first button body) 5 used in the operation button device for commanding an operation mode is shown in FIG. For example, the size of the play button and the fast forward button are different,
The shapes are almost the same. The first button body 5 has a pressing portion 5
a, two arms 5b, 5b continuous to the pressing section, an operating section 5c for operating the corresponding switch, and a panel 4
The shaft 5d (provided on the arms 5b, 5b), which is the engagement part with the button and is the center of the button rotation during operation, and the position defining protrusion 5e that comes into contact with the back surface of the panel 4 are integrally molded with resin. has been done.

The shape of the arms 5b, 5b is approximately equal to the shape of the back side of the panel 4 from the vertical portion to the inclined portion. That is, the arm 5b is divided into three parts,
The second portion B, in which the shaft 5d is formed, forms an angle of 45° with the first portion A and the third portion C. For this purpose, as shown in Fig. 5A, shafts (engaging parts) 5d, 5
When d is fitted into the receiving portions 17, 17 (at this time, the arms 5b, 5b are held between fingers and inserted between the opposing receiving portions), the pressing portion 5a protrudes from the through hole 9.

Then, the foam rubber 8 attached to the thick part 16
The third portion (end portion) C of the arm is urged, and its position is defined by the projection 5e, so that it is held in the state shown in the figure. The switch 22 operated by the operating section 5c is fixed to a printed circuit board 23, and the printed circuit board 23 is fixed to the main body chassis (not shown) of the VTR in a state parallel to the vertical portion 4a of the panel 4. A light emitting element (not shown) corresponding to the through hole 12 is also provided on the printed circuit board 23.

The first button body 5 is rotatably held around the shaft 5d, so when the pressing part 5a is pressed with a finger, the first button body rotates against the elasticity of the foam rubber 8, and the operating part 5c
The switch 22 is operated. When the finger pressure is released, the first button body 5 is given a restoring force by the elasticity of the foamed rubber 8 and returns to its original state.

The button bodies (hereinafter referred to as second and third button bodies) used by the channel selection device also have the same configuration and shape as the first button body. However, there are two button bodies 6 and 7 in one pair of receivers.
It is a little different in that it retains the . As shown in FIG. 7, the second button body 6 is integrally formed with a pressing portion 6a, arms 6b, 6b, an operating portion 6c, a shaft 6d, and a protrusion 6e for position regulation. As shown in FIG. 8, the third button body 7 has a pressing part 7a having the same size as the pressing part on the second button body.
Arms 7b, 7b of different sizes and shapes, and operation section 7
c. A protrusion 7e for position regulation is integrally molded. The third button body 7 is paired with the second button body 6 on the panel 4.
Fixed. As shown in FIG. 5B, the second push button 6 is fitted between the arms 7b, 7b of the third button body 7 and is held on the panel. At this time, the arm 7b of the third button body,
The shaft 6d of the second button body is inserted into the recess 7d provided in 7b.
is fitted, and the third button body 7 becomes rotatable around this axis.

During assembly, the third button body is first attached so that the arms 7b, 7b fit into the grooves 20 on the back of the panel, and then the second button body is attached. At this time, arms 6b, 6b
The shaft 6d may be inserted into the panel receiving portion 19 by holding it between fingers. The operation of the operation button device is the same as that of the operation button device shown in FIG. 5A. Since the switches 24 and 25 provided on the printed circuit board 23 behind the panel are operated by the operation parts 6c and 7c, the operation part 7c of the third button body has a longer shape than that of the second button body. In addition, printed circuit board 2
A light emitting element (not shown) is provided on the switch 3 in correspondence with the switch and in correspondence with the through hole 26.

In the above embodiment, the shaft is provided on the button body side and engages with the panel, but it is also possible to provide a shaft on the panel side and a recess (or hole) on the button body side into which the shaft fits. Further, in the embodiment, the arm is engaged with the receiving portion from the inside, but it may be engaged from the outside. Furthermore, although foamed rubber having an adhesive on the back surface is used as the elastic member, a plate spring may be fixed to the panel, or an elastic tongue piece may be formed on the panel itself.

(f) Effects of the invention As described above, according to the invention, an operation button device that does not require welding and has good assembly workability can be realized.
Furthermore, since the button body itself does not have a part that can be deformed using elasticity, even when plating the operation button, there is no need for a cap like in the past. Further, since no welding is required, the space occupied is reduced, and it is suitable as an operation button device provided on an inclined portion as in the embodiment.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional example, Figs. 2 to 8 relate to an embodiment of the present invention, Fig. 2 A is a side view of the panel, B and C are a front view showing a part of the panel, and Fig. 3 Figures A and B are back views showing part of the panel, Figure 4 A is a cross-sectional view taken in Figure 2 B, Figure B is a cross-sectional view also taken in Figure C, and Figures A and B show the operation button device in its completed state. Sectional views corresponding to Figures 4A and 6B, respectively.
7 and 8 are diagrams showing different shapes of the button body, respectively, in which A is a front view, B is a side view, C is a bottom view, and D is a sectional view. Explanation of main drawing numbers, 4...panel, 5, 6, 7...
...Button body, 8...Elastic member.

Claims (1)

[Claims for Utility Model Registration] A pressing part pressed by a user, an arm extending from the pressing part, an operating part close to the pressing part, and a lock located between the end of the arm and the pressing part. a button body integrally formed with a mating part; a panel having a vertical part and an inclined part, the vertical part having a receiving part to which the engaging part engages, and the inclined part having the pressing part. a panel provided with a protruding through hole; an elastic member disposed between the vertical portion and the end portion; and the arm is bent along the panel. Operation button device.