JPS605468Y2 - push button device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a push button device, and particularly relates to a push button device including a push button having a horizontally elongated pressing portion.

For example, tape recorders equipped with an automatic song selection function have recently become mainstream, and their song selection method has only one song selection button that allows you to skip ahead (or follow) a few songs and select just one song. There is a multi-memory type that has multiple song selection buttons and can program the desired song selection up to multiple locations.In particular, there is a type that allows only one song to be skipped, and the maximum number of skipped songs can be programmed. If the number of songs is relatively small, for example, three songs, the shape of the pressing part of the music selection button is made into a horizontally elongated shape that is approximately the same shape as the music selection display part from the viewpoint of design and operability, and is arranged parallel to the music selection display part. was.

Conventionally, such push buttons were installed as shown in FIGS. 1 and 2.

That is, the horizontally long pressing part 1a of the push button 1 is connected to the cabinet 2.
It protrudes from the top surface through the through hole 2a, and the bottom part 3a
is attached to the back of the cabinet 2 through the boss 2b with screws 4, 4.
The end portions 3b and 3c of the stopped U-shaped leaf spring 3 are brought into contact with the contact portions 1b and lc formed at both lower ends of the push button 1, thereby making the push button 1 elastic. It was configured to be supported by a plate spring 3.

In addition, 5 is a push switch arranged below the push button 1,
When the push button 1 is pressed against the elastic force of the leaf spring 3, the projection 1d of the push button 1 is pressed.

However, in such a conventional push button device, when the central part of the pressing part 1a of the push button 1 is pressed as shown in FIG. When the right (left) end of the pressing part 1a is pressed as shown in Figure 3, the amount of deflection of the leaf spring 3 is different on the left and right sides, causing the push button to tilt and the pressing stroke to be reduced. It was not possible to press the button securely.

The present invention has been developed in view of these points, and one embodiment thereof will be described below with reference to FIGS. 4 and 5.

In the figure, reference numeral 10 denotes a horizontally elongated pressing part 10a that protrudes from the upper surface of the cabinet 11 through a through hole 11a, and fitting leg parts 10b' and IQc' having arcuate fitting recesses 10b and 10c, respectively, are formed at both lower ends thereof. This is the button you pressed.

Reference numeral 12 denotes a support portion 1 (
That is, the support recesses 13a, 13a and the hook portions 13b, respectively.
A pair of support ribs 13a'9 and 13a' having 13b.
13b', 13b'), and the support member 12 has a cylindrical rotation fulcrum part 12a that is fitted and supported by the rotation fulcrum part 12a. The fitting portion 12b is connected to the fitting leg portions 10'c, 10 of the push button 10.
'b fitting recesses 10C910b respectively, and press the push button 1.
a support arm 12b' that supports the mounting of the push button 10; and an elastic arm that has a contact portion 12c at its tip that contacts the back surface of the cabinet 11 and applies a return force (that is, an applied force in the protruding direction) to the push button 10. 12C'.

Reference numeral 14 denotes a press switch which is disposed below the push button 10 and which is pressed via the protrusion 12b'' of the support arm 12b' when the push button 10 is pressed, and is disposed on the printed circuit board 15.

Therefore, in the assembled state as shown in FIG. 5, the push button 10 is always biased in the direction of the arrow by the elastic arm 12C' via the support arm 12b'.

Incidentally, when attaching the support member 12 to the cabinet 11, the rotation fulcrum part 12a is attached to the hook part 1 of the support part 13.
3b and 13b are pushed outward slightly to form the support recess 13.
By fitting into the arc-shaped support recesses 13a, 13a, the rotation fulcrum portion 12a is supported by the hook portions 13b, 13b so as to be rotatable once in the arcuate support recesses 13a, 13a.

Therefore, when the central part of the push button 10 (namely, the pressing part 10a thereof) is pressed, the support member 12 rotates about the rotation fulcrum part 12a without bending the elastic arm 12C'. Projection 12b of support arm 12b'
'', the press switch 14 can be pressed.

Furthermore, even if either the left or right end of the push button 10 (i.e., the pressing portion 10a thereof is pressed), the support arm 12b' of the support member 12 is not elastically deformed (i.e., the fitting legs 10b', 10C' of the push button). Since there is no deformation between the support member 12 and the rotation fulcrum portion 12a), the support member 12 rotates about the rotation fulcrum portion 12a while bending its elastic arm 12C′ in the same way as when the center portion is pressed. Therefore, the pressing stroke of push button 10 remains unchanged (that is, push button 1
0 is transmitted to the press switch 14 without any inclination and decrease in its press stroke, and the press switch 14 can be reliably pressed.

As described above, according to the push button device of the present invention, when a push button having a horizontally elongated pressing portion is used to press a push switch disposed below the push button, the push button that is fitted and supported by the supporting portion on the back surface of the cabinet is used. Since the push button is configured to be pressed via a support member that includes a support arm that supports the push button at the fulcrum portion and an elastic arm that contacts the back surface of the cabinet and applies a return force to the push button, the push button can be pressed. Even if you press any part of the press button (that is, the pressing part), there is no risk that the push button will tilt and the pressing stroke will be reduced, and you can reliably press the switch, and the effect is It has extremely high practical value.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing a conventional example, FIG. 2 is a schematic side sectional view showing the assembled state, and FIG. 3a. FIG. 4 is an exploded perspective view showing an embodiment of the present invention, and FIG. 5 is a schematic side sectional view showing the assembled state. 10...Push button, 10a...Press portion, 1
0b', IQc'...Mating leg, 11...
...Cabinet, 12... Support member, 12b
'...Support arm, 12C'...Elastic arm, 12a...Rotation fulcrum, 13...
...Support part, 14...Press switch.

Claims (1)

[Scope of utility model registration request] The push button has a horizontally elongated pressing part that protrudes through a through hole on the top surface of the cabinet, and has fitting legs formed at both lower ends of the push button, and a rotation fulcrum part that is fitted and supported by a support part formed on the back surface of the cabinet. and a support member that is formed with a support arm that fits into the fitting leg portion of the push button to support the push button with the rotation fulcrum portion as a boundary, and an elastic arm that comes into contact with the back surface of the cabinet and applies a restoring force to the push button. and a press switch disposed below the push button and operated by pressing the push button, so that the press switch is pressed no matter which part of the pressing part of the push button is pressed. A push button device characterized by: