JPH0572025U - Push button structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Hinge part 30a that does not deform even when strongly pressed
Providing a push button structure with. A push button structure in which a substrate 40 on which a switch 38 is formed is disposed inside a casing 33, and a push button 30 having a pressing portion 31 of the switch 38 and a hinge portion 30a is attached to the casing 33 at the hinge portion 30a. In the push button structure, the support portion 10 for restricting the movement of the hinge portion 30a by a predetermined amount or more is formed on the hinge portion 30a or a member in the vicinity of the hinge portion 30a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a push button structure, and more particularly, to a hinge type push button structure.

[0002]

[Prior Art]

 FIG. 3 is a side sectional view schematically showing the structure of a conventional hinge type push button. In the drawing, reference numeral 30 denotes a push button formed of ABS resin or the like, and the push button 30 is composed of a hinge portion 30a, an upper curved portion 30b, a window 30c, a character portion 30d, a lower curved portion 30e, and a lower end portion 30f. .. The lower end portion 30f of the push button 30 contacts the casing 33, the upper end portion of the hinge portion 30a is fixed to the casing 33 by welding or the like at the attachment portion 32, and the downward bending portion 30e is formed with the pressing portion 31 protruding inward. It is being touched. On the other hand, inside the casing 33, a movement amount restricting member 37 for the push button 30, a light blocking plate 35 having a tubular portion 35a, and a printed circuit board 40 are arranged. The printed circuit board 40 includes a switch 38 and a lamp 39. It is installed. The switch 38 faces the pressing portion 31 of the push button 30, and the lamp 39 faces the window 30c of the push button 30.

Button operation in the push button structure configured as described above is performed as follows. When the character portion 30d is pressed with a finger or the like, the push button 30 moves to the inside of the casing 33 with the mounting portion 32 as a fulcrum. That is, when the character portion 30d is pressed with a finger or the like, the lower end portion 30f is separated from the casing 33, and the pressing portion 31 presses the switch 38. When the pressing portion 31 presses the switch 38, the lamp 39 is turned on, and a light beam is emitted from the lamp 39 to the outside of the casing 33 through the window 30c. The operator confirms that the switch input is performed by the light beam, and removes the finger from the character portion 30d. When the operator releases the finger from the character portion 30d, the elasticity of the hinge portion 30a causes the pressing portion 31 to separate from the switch 38, the lower end portion 30f to abut the casing 33, and the push button 30 returns to the position shown in the figure. ..

[0004]

[Problems to be solved by the device]

 When the character portion 30d is pressed with a finger or the like as described above, the pressing portion 31 comes into contact with the switch 38, and even if the finger or the like is further pressed from the time of contact, the rigidity of the pressing portion 31, the printed circuit board 40 or the like is increased. Therefore, the push button 30 does not move any further. In other words, as long as the character portion 30d is pressed, the pressing force by the finger is supported by the pressing portion 31, the switch 38, and the printed circuit board 40. It does not deform so much.

However, if the periphery of the hinge portion 30a or the upper curved portion 30b is strongly pressed by mistake, the hinge portion 30a is largely deformed, and if this is repeated, the push button 30 may be broken. The hinge portion 30a is formed thinner and weaker than other portions of the push button 30 to have elasticity, and is easily deformed when strongly pressed (see FIG. 4). FIG. 4 is a side sectional view schematically showing a case where the hinge portion 30a of the push button 30 is strongly pressed and the hinge portion 30a is deformed.

That is, the conventional push button structure has a means for dealing with a case where the character portion 30d is strongly pressed by a normal button operation, but a case where the hinge portion 30a is strongly pressed due to an accident or an impact. There is no means for dealing with.

The present invention has been made in view of the above problems, and an object thereof is to provide a push button structure in which the hinge portion is not deformed by a predetermined amount or more even if the hinge portion is strongly pressed.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, in a push button structure according to the present invention, a substrate having a switch formed therein is disposed inside a casing, and a push button having a push portion and a hinge portion of the switch is provided. In the push button structure attached to the casing at the hinge part, a support part for restricting movement of the hinge part by a predetermined amount or more is formed on the hinge part or a member in the vicinity of the hinge part. ing.

[0009]

[Action]

 According to the above-mentioned configuration, since the support portion that restricts the movement of the hinge portion by a predetermined amount or more is formed on the hinge portion or a member in the vicinity of the hinge portion, the support portion can prevent the movement of the hinge portion even if it is strongly pressed. Movement of the hinge portion by a predetermined amount or more is restricted, and large deformation of the hinge portion is prevented.

[0010]

【Example】

 An embodiment of a push button structure according to the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side sectional view showing a push button structure according to an embodiment, and FIG. 2 is a schematic side sectional view showing a push button structure when the hinge portion 30a is strongly pressed. The components having the same functions as those in the conventional example are designated by the same reference numerals.

In the figure, reference numeral 30 denotes a push button, and the push button 30 includes a hinge portion 30a, an upward bending portion 30b, a window 30c, a character portion 30d, a downward bending portion 30e, and a lower end portion 30f. The lower end portion 30f is in contact with the casing 33, the pressing portion 31 protruding inward is formed on the downward curved portion 30e, and the upper end portion of the hinge portion 30a is attached to the casing 33 by welding or the like at the attachment portion 32. On the other hand, inside the casing 33, the movement amount restricting member 37 of the push button 30, the light shielding plate 11 having the tubular portion 11a, and the printed circuit board 40 are arranged, and the position facing the hinge portion 30a of the light shielding plate 11 is provided. The support portion 10 that restricts the movement of the hinge portion 30a by a predetermined amount or more is formed on the printed circuit board 40, and the lamp 39 and the switch 38 are attached to the printed circuit board 40. The lamp 39 faces the window 30c, and the switch 38 faces the pressing portion 31.

A normal button operation in the push button structure configured as described above is performed as follows. When the character portion 30d is pressed with a finger or the like, the push button 30 moves to the inside of the casing 33 with the mounting portion 32 as a fulcrum. That is, when the character portion 30d is pressed by a finger or the like, the lower end portion 30f is separated from the casing 33, the pressing portion 31 presses the switch 38, and the hinge portion 30a is deformed and formed on the light shielding plate 11. It abuts the support portion 10. When the switch 38 is pressed, the lamp 39 is turned on, and a light beam is emitted from the lamp 39 to the outside of the casing 33 through the window 30c. The operator confirms that the switch input is performed by the light beam, and separates the finger or the like from the character portion 30d. When the finger or the like is separated from the character portion 30d, the elasticity of the hinge portion 30a separates the hinge portion 30a from the support portion 10, the pressing portion 31 also separates from the switch 38, and the lower end portion 30f abuts the casing 33 to push the push button. 30 returns to the position shown in FIG.

Further, in the push button structure configured as described above, when the hinge portion 30a side is strongly pressed due to a mistake or an erroneous operation, as shown in FIG. 2, the hinge portion 30a is moved to the inner side of the casing 33. However, since the pressing force applied to the hinge portion 30a is supported by the supporting portion 10 formed on the light shielding plate 11, the hinge portion 30a moves only to a predetermined amount, that is, to a position where it abuts on the supporting portion 10. By the way, as described above, the movement amount (predetermined amount) of the hinge portion 30a is the movement that the hinge portion 30a moves when the character portion 30d is pressed until the pressing portion 31 comes into contact with the switch 38 by the normal button operation. Is equal to the quantity. That is, in the push button structure according to the embodiment, the amount of movement of the hinge portion 30a is the same as that of the hinge portion 30a even when the normal button operation is performed or when the hinge portion 30a is strongly pressed. The predetermined amount is determined by the positional relationship with the support portion 10 formed on the light shielding plate 11. Therefore, FIG. 2 shows a case where the hinge portion 30a is strongly pressed, and at the same time, a schematic diagram showing a push button structure when the character portion 30d is pressed by a normal button operation.

As described above, in the push button structure according to the embodiment, the support portion 10 that restricts the movement of the hinge portion 30a by a predetermined amount or more is formed on the light shielding plate 11 arranged inside the casing 33. Therefore, even if the hinge portion 30a is erroneously strongly pressed, the movement of the hinge portion 30a is restricted to the predetermined amount and the pressing force is supported by the support portion 10, so that the hinge portion 30a is largely deformed. Therefore, it is possible to prevent the hinge portion 30a from being damaged early.

In the above embodiment, the support portion 10 is formed on the light shielding plate 11, but in another embodiment, the support portion may be provided on the hinge portion 30a side.

[0016]

[Effect of the device]

 As described above in detail, in the push button structure according to the present invention, since the supporting portion that restricts the movement of the hinge portion by a predetermined amount or more is formed on the hinge portion or a member near the hinge portion, The support portion restricts the movement of the hinge portion beyond a predetermined amount. As a result, even if an excessively strong pressing force is applied to the hinge portion, the hinge portion is supported by the support portion, so that the hinge portion can be prevented from being largely deformed, and the hinge portion can be prevented from being damaged early. Can be prevented.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view showing an embodiment of a push button structure according to the present invention.

FIG. 2 is a schematic side cross-sectional view showing a case where a normal button operation is performed and a case where a hinge portion is pressed in the push button structure according to the embodiment.

FIG. 3 is a schematic side sectional view showing a conventional push button structure.

FIG. 4 is a schematic side sectional view showing a case where a hinge portion is strongly pressed in a conventional push button structure.

[Explanation of sign]

 10 Support Part 30 Push Button 30a Hinge Part 31 Pressing Part 33 Casing 38 Switch 40 Board

Claims (1)

[Scope of utility model registration request] 1. A push button structure in which a substrate on which a switch is formed is disposed inside a casing, and a push button having a pressing portion and a hinge portion of the switch is attached to the casing at the hinge portion, the hinge being a hinge. A push button structure, wherein a supporting portion for restricting movement of the portion by a predetermined amount or more is formed on the hinge portion or a member in the vicinity of the hinge portion.