JPS6336892Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operation button attachment device, and more particularly, to an operation button attachment device that is attached to a slide operation lever used in, for example, a tape recorder with an in-vehicle radio.

A slide operating lever of a car-mounted radio tape recorder and an operating button attached to this operating lever have conventionally been constructed as shown in FIG. That is, a fitting hole 2 is formed at the tip of the slide operation lever 1, and a protrusion 5 is formed on the upper surface of the mounting hole 4 of the operation button 3, so that the operation button 3 can be attached to the slide operation lever 1.
By pushing the operating button 3 backward along the same direction, the protrusion 5 of the operating button 3 is fitted into the fitting hole 2 of the operating lever 1, and the operating button 3 is fixed to the slide operating lever 1.

However, in the case of FIG. 1, it is difficult to remove the operation button 3 from the operation lever 1, and the slide operation lever 1
The drawback was that the absorption width for center deviation was narrow.

In view of this, the present invention aims to provide an operation button mounting device that eliminates the above-mentioned drawbacks. An embodiment of the present invention used in a car-mounted tape recorder with a radio is shown in Figs. 2 to 5 below. Explain according to the following.

In each figure, 6 is a chassis, 7 is an operating shaft, 8 is a tape drive mechanism, and 9 is a metal slide operation lever connected to a switching mechanism (not shown) of the tape drive mechanism 8, for example. This is a slide operation lever for review operation, and the slide operation lever has a tip 10 bent approximately at right angles to the right side (inward of the device) with respect to the lever body 11, and an end edge 12 of the tip 10. is sloping.

13 is a synthetic resin operation button attached to the slide operation lever 9, and a protrusion 1 is provided at the rear of the top surface 14.
5, and a plate-shaped guide piece 17 integrally formed at the rear lower part of the button body. Reference numeral 18 denotes an engagement protrusion provided on the upper part of the rear end surface 19 of the button body 16, and 20 an engagement protrusion provided on the upper surface 21 of the guide piece 17. The spacing is the same as or slightly wider than the front-back width of the tip 10 of the slide operation lever 9, and the engagement protrusion 18 and the engagement protrusion 20 close the tip of the slide operation lever 9. 10 is configured as an engaging portion 22 for engaging. 23a, 23b, 23c are friction reducing ribs provided on the left end of the upper surface 21 of the guide piece 17 and both left and right ends of the lower surface 21'; 24 is a guide provided on the rear of the right side 25 of the button body 16. It is a rib.

Reference numeral 26 denotes a synthetic resin bracket to which a radio dial display pointer 27 and a part of a dial drive mechanism (not shown) for driving the dial display pointer are attached, and the bracket is attached to the tape drive mechanism section 8.
It is attached with screws, etc. 28a, 28b
. . . are synthetic resin operation buttons arranged horizontally in a row to operate button type changeover switches (not shown) disposed below the tape drive mechanism section 8. A connecting piece portion 30 having a fitting portion 29 that fits into a push rod (not shown) is attached to the button body portion 31.
A guide protrusion 3 is formed on the bracket 26 at the upper rear end side of the button body 31.
A fitting recess (not shown) is formed for inserting 2, 32, . . . when the operation buttons 28a, 28b, .

For detailed drawings of the operation buttons 28a, 28b, etc. and the changeover switch, as well as the installation procedure of the operation buttons 28a, 28b, etc., please refer to the specification of Japanese Utility Model Publication No. 1983-40497, which was previously filed by the applicant of the present application. and the drawings, further explanation will be omitted here.

33 is a synthetic resin front panel, 34a, 34
b... is an installation hole provided at the lower part of the front panel, and the left end installation hole 34a is provided with the left and right side walls 35, 3.
5' are provided with guide ribs 37, 37' having different heights from the bottom surface 36 of the installation hole 34a.

Next, the assembly procedure of the operation button mounting device of the present invention will be explained.

First, the operation buttons 13 and 28 are arranged in a horizontal row.
Engagement protrusion 1 of the operation button 13 at the left end of a, 28b...
In order to engage the distal end portion 10 of the slide operation lever 9 with the engagement portion 22 composed of the engagement portion 22 and the engagement protrusion 20, push the operation button 13 from the right side of the slide operation lever 9 (inside the device). Bring it to the 9th side. At this time, since the edge 12 of the tip 10 of the slide operation lever 9 is inclined, the operation button 13
The tip part 1 of the slide operation lever 9 is attached to the engaging part 22 of the
0 can be easily engaged.

In this way, the tip 10 of the slide operation lever 9
is engaged with the engaging portion 22 of the operating button 13, the operating button 13 is positioned in the front-rear direction by the engaging protrusion 20 of the operating button 13 and the rear end surface 19 of the button body 16, and is moved in the same direction. The engagement protrusion 18 of the operation button 13 prevents the operation button 13 from coming off in the leftward and downward directions. At this time, the operation button 13 is free to move to the right, and can also be moved up and down, so
The center shift of the slide operation lever 9 can be easily absorbed.

Next, by fitting and fixing the second operating button 28a from the left into the press rod of a predetermined changeover switch and pressing it, the leftmost operating button 13 attached to the slide operating lever 9 will be attached adjacent to the right side of the operating button 28a. Due to the operation button 28a being turned on, it cannot be removed even in the right direction. In other words, at this time, the second operation button 28a from the left
is positioned in the longitudinal direction with respect to the press rod of the changeover switch, and the guide protrusions 32, 32... of the bracket 26 prevent it from wobbling significantly in the vertical and horizontal directions, so the operation button 13 on the left end is positioned in the right direction There is no possibility of leakage (inside the device). Similarly, after fitting and fixing the other operation buttons 28b, 28c... to the press rods of the corresponding changeover switches and inserting the guide protrusions 32, 32... of the bracket 26 into the fitting recesses, the front panel 33 is attached to the chassis. Install it on 6.

At this time, the operation button 13 has friction-reducing ribs 23a and 23b on the upper and lower surfaces of the guide piece 17, and the left end thereof has a guide groove 38 formed by the guide rib 37 of the left end installation hole 34a of the front panel 33. The guide rib 24 is inserted into the guide rib 3 of the left end installation hole 34a of the front panel 33.
7' is inserted into the guide groove 38',
The button body portion 16 is inserted into the arrangement hole 34a, and a portion thereof protrudes forward. Also, other operation buttons 28a, 28b...
are the respective installation holes 34b, 34c... of the front panel 33.
It is forcibly positioned by guide protrusions 39, 39, . The protrusion length of the leftmost operation button 13 is determined by the contact of the protrusion 15 of the operation button 13 with the inner surface of the front panel 33, so it should be made equal to the protrusion length of the other push buttons 28a, 28b... I can do it.

In addition, when removing the operating button 13 from the slide operating lever 9, such as when replacing the operating button 13, the operating button 13 can be removed by reversing the procedure described above, and the second operating button 28a from the left can be switched. After removing the switch from the push rod, move the leftmost operation button 13 to the right, and the slide operation lever 9
It can be easily removed from the

Furthermore, in the above-mentioned embodiment, the slide operation lever is a slide operation lever for review operation,
Furthermore, although an example has been described in which the operation button having the engaging portion that engages with the tip of the slide operation lever is the leftmost operation button, the slide operation lever is not limited to such an example. It may also be a slide operation lever. Furthermore, it goes without saying that the operating button having the engaging portion that engages with the tip of the slide operating lever may be the right-most operating button, or may be the operating button at both the left and right ends.

As described above, according to the operating button mounting device of the present invention, the tip of the operating lever is bent laterally, the operating button is engaged with the tip from the side, and then the other button is attached to the side. Since the operation buttons are attached adjacent to each other to prevent them from coming off, the operation buttons can be easily attached to the operation lever, and the operation buttons can be easily removed for repairs or the like. Furthermore, when the operation button is inserted into the installation hole on the front panel, it is positioned using the guide groove formed on the side of the installation hole, so that the shift of the center of the operation lever is reliably absorbed. I can do it. In addition, the contact between the operation button and the front panel is close to point contact due to the friction-reducing rib provided on the operation button side, so the operation button can be moved smoothly within the installation hole. .

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a main part of a conventional operation button mounting device, Figs. 2 to 5 show an operation button mounting device according to the present invention, and Fig. 2A is an exploded perspective view of a main part of the device of the present invention. , Figure 2B is an enlarged view of the main part of Figure 2A, Figure 3A is a sectional view showing the operation button attached to the operation lever, and Figure 3B is the front panel with the operation button attached to the operation lever. Cross-sectional view showing the installed state, Figure 4 A,
B is a perspective view and a front view of a main part of the front panel, and FIG. 5 is a perspective view showing a state in which the front panel is removed of an in-vehicle radio tape recorder using the device of the present invention. 9...Operation lever, 10...Tip, 13...
Operation button, 18... Engaging protrusion, 19... Engaging protrusion,
22... Engaging portion, 33... Front panel, 34a,
34b... Installation hole.

Claims (1)

[Scope of utility model registration request] an operating lever whose distal end is bent laterally; a first operating button having an engaging portion formed on the distal end of the operating lever that is engaged from the side while positioned only in the front-rear direction; A changeover switch arranged near the operating lever and having a pressing rod; a fitting portion that fits into the pressing rod of the switching switch is formed, and when the fitting portion is fitted, the switching switch is arranged adjacent to the side of the first operating button. a second operation button that prevents the first operation button from coming off, and a front panel in which holes are respectively formed to allow each of the operation buttons to protrude forward while being positioned in the vertical and horizontal directions. An operation button mounting device featuring: