JP2527271Y2 - Two-stage push button device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] In the present invention, in audio equipment such as a cassette tape deck or other electronic equipment, a push button provided on an escutcheon is pressed to operate a push switch inside the equipment. The present invention relates to a push button device, and more particularly to a push button device provided with two upper and lower push buttons in an escutcheon.

[Prior Art] Generally, a push button for operating a function of a radio or a tape deck is arranged on an escutcheon provided on a front face of an audio device, and a push switch provided on a back face of the escutcheon can be operated by the push button. It has become. In recent years, radios with double cassette decks and CDs
Along with the increase in audio equipment having many functions such as a cassette deck provided with such a function, a large number of push buttons for operating the functions have been provided, and there are cases where two or more push buttons are provided in an escutcheon.

FIG. 4 to FIG. 6 show an on-vehicle radio apparatus with a cassette tape deck, which is generally seen in the related art, as an example of an acoustic apparatus having such a push-button apparatus.

That is, in the present apparatus, as shown in FIG. 4, an escutcheon 2 provided on a front surface of an equipment case 1, a dustproof door 3 attached to a cassette tape insertion slot, a liquid crystal display 4 for various displays, a volume and a sound quality. Or, a knob 5 for adjusting the balance and the like by a rotation operation, a push button 6 for operating a radio function, and a push button 7 for operating a tape deck function,
A plurality is provided one by one. Also, inside the device, as shown in FIGS. 5 and 6, a main substrate 8 is provided on the bottom surface of the device, and a push switch 9 is disposed on the main substrate 8.

An action section 6a is provided on the back surface of each push button 6 in the upper stage. The action portion 6a extends downward from the lower rear surface of the push button 6 and then extends rearward perpendicularly to the escutcheon, and its tip reaches above the push switch 9. This working part
6a is reinforced by ribs 6b. Further, a hinge portion 6c is provided to protrude downward from a corner of the action portion 6a. On the other hand, from the back surface of each of the push buttons 7 at the lower stage, an action bar 7a is provided to protrude rearward, and the tip thereof reaches above the push switch 9. The working rod 7a is reinforced by a rib 7b. A hinge 7c extends downward from the back surface of the push button 7.

Further, each of the push buttons 6 and 7 is connected to one fixing member 10 via the hinge portion 6c and the hinge portion 7c, and the fixing member 10 is fitted to the front end of the main board 8 by being fitted thereto. The push buttons 6 and 7 are rotatably attached to the main board 8.

In the push button device having the above-described configuration, when the upper push button 6 provided on the escutcheon 2 is pressed, the hinge portion 6c bends, and the push button 6 is moved rearward around the hinge portion 6c (counterclockwise in FIG. 6). To rotate. Therefore, the push switch 9
The tip of the action part 6a located above pushes the push switch 9 in a substantially vertical direction to activate the switch. When the lower push button 7 is pressed, the hinge 7c bends, and the push button 7 rotates rearward (counterclockwise in FIG. 6) around the hinge 7c, and the action rod located above the push switch 9 The tip of 7a presses the push switch 9 in a substantially vertical direction to operate the push switch 9.

[Problem to be Solved by the Invention] However, in the push button device having the above-described configuration, the distance from the portion 6d where the upper push button 6 is pressed by the finger to the hinge portion 6c which is the center at the time of rotation is: Since the lower push button 7 is longer than the distance from the portion 7d pressed by the finger to the hinge portion 7c which is the center at the time of rotation, the push buttons 6 and 7 necessary for pressing the push switch 9 to operate by pushing In order to rotate, it is necessary to push the upper push button 6 deeper than the lower push button 7, and the switch feeling is different between the upper push button 6 and the lower push button 7.

For the above reason, when the lower side of the lower push button 7 is pressed with the same force as the pressing force of the push button 6, the push button 7 is easily pushed more than necessary, and the hinge portion 7c tends to be broken due to a load.

The shapes of the push buttons 6 and 7 are complicated and the die cost is high.

There was a disadvantage.

The present invention has been proposed in order to solve the problems of the prior art as described above. The purpose of the present invention is to make the switch feeling of the upper and lower push buttons uniform at the time of push button operation, and to have a simple shape that is hard to be damaged. It is another object of the present invention to provide a two-stage push button device using the above member.

[Means for Solving the Problems] In order to solve the above problems, a two-stage push button device of the present invention is provided with a push switch which is pressed on a main substrate in a direction perpendicular to the main substrate to operate. A switch actuating member is disposed on the main board in front of the push switch. The switch actuating member has one end turned by being pressed substantially at right angles to the escutcheon, and the other end substantially having the push switch. An operating portion for pressing vertically and a hinge portion serving as a fulcrum of rotation of the operating portion are provided. On the upper rear surface of the upper push button member, a rotating shaft serving as a fulcrum for escutcheon is provided. An operating rod for pressing one end of the operating portion of the switch operating member at the time of rotation is protrudingly provided on the lower side of the back surface. It provided as a fulcrum rotating shaft, likewise on the back upper, working rod for pressing the end of the working portion of the switch actuating member when the rotation is characterized in the configuration that protrudes.

[Operation] The operation of the present invention having the above-described configuration is as follows.

That is, when the push button member disposed on the escutcheon is pressed, the push button member rotates around the rotation shaft portion, and the operation rod of the push button member moves backward. Therefore, one end of the switch actuating member is pushed by the action rod, the switch actuating member pivots backward about the hinge, and the other end of the switch actuating member pushes the push switch arranged on the main board. You.

In this case, the operating rod of the upper push button member is provided below the push button, and the operating rod of the lower push button member is provided above the push button. Does not substantially change the position of pressing the switch operating member, and therefore presses the switch operating member with substantially the same force, so that a substantially uniform switch feeling can be obtained with the upper and lower push button members. In addition, since the push button member rotates around the rotation axis, there is no bending, and the hinge portion of the switch operating member is not directly pressed by the finger but is pressed by the operating rod by the rotation of the push button member. The pressing force is buffered, the hinge portion of the switch operating member is not easily broken, and each member has a simple shape by providing the switch operating member between the push button member and the push switch.

[Embodiment] An embodiment of the two-stage push button device of the present invention will be specifically described below with reference to FIGS. 1 to 3. In this embodiment, the push button device of the present invention is applied to an in-vehicle radio device having a cassette tape deck. Further, in the present embodiment, the same members as those of the related art are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, on the back side of the escutcheon 2,
As shown in FIGS. 1 to 3, a light guide plate 11 is provided behind the escutcheon 2 in parallel with the escutcheon, and the main substrate 8 is provided behind the light guide plate 11 and perpendicular to the escutcheon. The upper push button member 12 and the lower push button member 13 are configured such that characters and the like transmit light of the light guide plate.

On the back surface of the upper push button member 12, a plate-like piece 12a is extended upward in parallel with the escutcheon 2, and its end is a horizontal column-shaped rotation shaft 12b. On the other hand, on the back surface of the lower push button member 13, a plate-like piece 13 a is extended downward in parallel with the escutcheon 2, and the end thereof has a horizontal cylindrical rotating shaft 1.
3b. A substantially semi-cylindrical groove 2a is provided in the upper part of the escutcheon 2, a substantially semi-cylindrical groove 2a 'is provided in the lower part, and a rib 11a is provided in the upper part of the light guide plate 11 in parallel with the device case 1. The lower part is provided with a rib 11a 'in parallel with the equipment case 1. The rotating shaft portion 12b is provided in these grooves 2
a and the rib 11a, and the rotating shaft portion 13b is rotatably held by the groove 2a 'and the rib 11a'. Also,
On the opposite side of the upper push button 12 from the rotary shaft 12b, an action rod 12c extends perpendicularly to the escutcheon 2, and a lower push button member 13 is provided.
On the side opposite to the rotation shaft portion 13b, an operation rod 13c extends perpendicularly to the escutcheon 2, and these operation rods 12c, 13c respectively penetrate through holes 11b provided in the light guide plate 11. .

On the other hand, in the front part of the main board 8, fixing holes 8a for fixing the upper and lower switch operating members 14, 14 'are provided corresponding to the push button members 12, 13. Also, behind it is a push switch 1 for upper and lower
5, 15 'are alternately arranged so as to operate by being pressed vertically with the main substrate 8.

The switch operating member 14 for the upper stage is a U-shaped substrate holding portion.
14a and a substantially L-shaped acting portion 14b and a hinge portion 14 connecting both portions.
Consists of c. The lower-stage switch operating member 14 'includes a U-shaped substrate holding portion 14a', a substantially L-shaped acting portion 14b ', and a hinge portion 14c' connecting both portions. Immediately, the switch operating members 14 and 14 'are fixed to the main board 8 by the holding sections 14a and 14a' being fitted to the main board 8, but in the present embodiment, in particular, the holding sections 14a and 14a are provided. Are fixed to the fixing holes 8a of the main board 8, respectively.
The fixing of the main board 8 and the switch operating members 14, 14 'is strengthened. On the other hand, of the substantially L-shaped working parts 14b and 14b ', one arm extends parallel to the main board 8 and above the push switch 15, the other arm extends parallel to the escutcheon 2, and
The upper or lower push button members 12 and 13 penetrating through the pin 11 are in contact with the action rods 12c or 13c. Further, the operating portions 14b, 14b 'are provided with reinforcing ribs 14e, 14e' on the opposite side to the hinge portions 14c, 14c ', respectively.

The operation of the present embodiment having the above configuration is as follows. That is, when the lower push button member 13 is pressed, the push button 13
Rotates backward (clockwise in FIG. 1) about the rotation shaft 13b. Then the action rod 13c of the push button 13 moves backward,
The arm of the action portion 14b 'of the switch operating member 14' that was in contact is pressed. When this arm is pressed, the switch actuating member 1
4 'is a hinge portion 14c' except for a portion fixed to the main board 8.
Is rotated backward (clockwise in FIG. 1). For this reason, the working portion 14 that has been extended to above the push switch 15
The arm b 'pushes the lower push switch 15 in a direction substantially perpendicular to the main board 8, and the switch is activated.

When the upper push button member 12 is pressed, the push button member 12 rotates rearward (counterclockwise in FIG. 1) about the rotation shaft 12b,
The action rod 12c is pushed rearward, and the following is the same as the case of the lower push button member 13 described above.

In this case, the operation rod 12c of the upper push button member 12 and the operation rod 13c of the lower push button member 13 are the switch operating members 14,
The position of pressing 14 'is almost equal, and therefore its working rod 12c,
Since the force by which 13c presses the switch actuating members 14 and 14 'is substantially equal, a switch feeling substantially equal to that of the upper push button member 12 and the lower push button member 13 is obtained. In addition, the push button members 12 and 13 rotate around the rotation shaft portions 12b and 13b, so there is no place to bend, and the switch operating members 14 and 14 'are not directly pressed by the fingers and the push button members 12 and 13 are not pressed. Is pressed by the action rods 12c, 13c, and the rotation of the push button members 12, 13 is limited by the through holes 11b provided in the light guide plate 11, so that excessive force is applied to the hinge portions 14c, 14c '. Without taking
The hinge portions 14c, 14c 'of the switch operating members 14, 14' are also hard to be broken, and the switch operating members 14, 14 'are provided between the push button members 12, 13 and the push switch 15, so that each member is simple. Shape.

Note that the present invention is not limited to the above-described embodiment, and specific shapes of respective members, or respective mounting positions and methods can be appropriately changed.

Instead of providing a fixing hole in the main board, a groove may be formed in parallel with the escutcheon, and the switch operating member may be slid and fitted.

The switch operating member may fix each switch operating member corresponding to the push button to the main board.

In the present embodiment, the ribs 11a and 11a 'of the light guide plate 11 are used to sandwich the pivot shafts 12b and 13b of the push button member. However, the configuration in which the ribs are sandwiched by another member does not impose any problem.

The equipment to which the push button device of the present invention is applied is not limited to audio equipment for in-vehicle use.For example, an internal switch of various functions is operated by a two-stage push button, such as an indoor stationary audio equipment and a video equipment. The present invention can be applied to various types of devices.

[Effects of the Invention] As described above, according to the present invention, the switch actuating member is disposed between the push button member and the push switch, and the rotating shaft portion and the action rod are symmetrically arranged on the upper and lower push button members, respectively. By providing the same, it is possible to provide a two-stage push button device using a simple shape member, in which the switch feeling of the upper and lower push button members is made uniform at the time of the push button operation, and is hardly damaged.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of a two-stage push button device according to the present invention, FIG. 2 is an exploded perspective view of the essential parts, FIG. 3 is a perspective view of the essential parts, and FIG. FIG. 5 is a perspective view showing an example of an acoustic device to which the devised push button device is applied, FIG. 5 is a perspective view of a main part showing a conventional push button device, and FIG. 6 is a longitudinal sectional view of the same. DESCRIPTION OF SYMBOLS 1 ... Device case, 2 ... Escussion, 8 ... Main board, 11 ... Light guide plate, 12, 13 ... Push button member, 12a, 13a ... Plate-shaped piece, 12b, 13b ... Rotating shaft, 12c , 13c …… Action rod, 14,1
4 ': Switch actuating member, 14a, 14a': Nipping portion, 14b,
14b ': Working part, 14c, 14c': Hinge part, 14d, 14d '
... Fixing claws, 14e, 14e '... Ribs, 15 ... Push switches.

Claims (1)

(57) [Scope of request for utility model registration] 1. A two-stage push button device having an escutcheon in which pushbutton members are arranged in two stages, and a main substrate arranged substantially at right angles to the escutcheon, wherein the main substrate is provided on the main substrate. A push switch is provided so as to be operated by being pressed in the vertical direction. Similarly, a switch operating member is disposed on the main substrate in front of the push switch, and one end of the switch operating member is pressed substantially at right angles to the escutcheon. An operating portion that rotates by the other end and presses the push switch in the substantially vertical direction at the other end, and a hinge portion serving as a fulcrum of rotation of the operating portion are provided. A rotation shaft is provided as a rotation fulcrum with respect to, and an operation rod that presses one end of an operation portion of the switch operation member at the time of rotation is provided protrudingly on the lower side of the back surface, On the lower side of the lower surface of the push button member of the step, there is provided a rotating shaft serving as a fulcrum for rotation of the escutcheon. A two-stage push button device, characterized by being provided with a protrusion.