JPH0550634U - Switch button fixed structure - Google Patents

Abstract

(57) [Summary] [Purpose] The switch button is fixed to the switch without impairing operability and assembling, and the rattling of the switch button is eliminated. [Structure] The operation knob of the switch and the switch button are adhered to each other, so that the assembling ability is easy and the rattling is eliminated. By using an adhesive that becomes a rubber-like elastic body after curing, the restraining force becomes soft, the operability is not affected, disassembly becomes easy, and the rattling prevention effect continues even after reassembly. If at least one of the switch operation knob and the switch button is made of a material that is difficult to adhere to, the binding force will be weakened, the operability will not be affected, disassembly will be easy, and rattling will be prevented even after reassembly. continue.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switch operating structure, and more particularly to a structure for fixing a switch button to the switch.

[0002]

[Prior Art]

 The engaging portion of the conventional switch button with the operation knob is: A structure that is engaged so that operating force can be transmitted, but has a gap and is not fixed. 2. A structure in which the engaging part is an interference fit and is pushed in and fixed. And so on.

[0003]

[Problems to be solved by the device]

 However, the conventional 1. In such a structure, the switch button can move freely within the gap between the surrounding members, so there is a problem that it makes a rattling sound when vibration is applied. In order to prevent rattling noise, it may be pressed with a spring, but providing a spring increases the cost and requires an installation space. Also, 2. With such a structure, a large force is required to push it in.Therefore, the switch button should be installed in the outer case in advance and the switch button and the operation knob should be engaged at the same time when the circuit board with the switch mounted is assembled. There is no way to make it happen. Therefore, when assembling, the board had to be tilted and the switch button had to be inserted into the hole of the outer case, which was a problem in terms of work. In addition, the dimensional tolerance of switches is generally about ± 0.3 mm, but the engaging portion of a switch button with a size of several mm absorbs the dimensional difference of ± 0.3 mm to provide a tight fit. It is almost impossible to set the appropriate size. Therefore, there has been a problem that at least the dimensional tolerance of the operation knob must be reduced to a fraction of that of general products or less, and a custom-made switch must be used. Therefore, an object of the present invention is to realize a switch operation part structure which is easy to assemble without any rattling by easily fixing the switch button and the operation knob.

[0004]

[Means for Solving the Problems]

 The switch button fixing structure of the present invention is a switch operation structure including a switch having an operation knob and a switch button that is engaged with the operation knob and partially protrudes from the outer case. The operation knob and the switch button are bonded together.

Further, the adhesive is characterized in that it is a rubber-like elastic body after being cured.

Further, at least one of the operation knob and the switch button is characterized by being formed of a material having poor adhesion.

[0007]

【Example】

 Hereinafter, the details of the present invention will be described with reference to examples. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of a portion indicated by AA in FIG. In the figure, 1 is a slide switch, 11 is an operation knob of the slide switch 1, 2 is a switch button A 2, 21 is a switch button B, 22 is an engaging portion provided on the switch button B21, and 23 is provided on a switch button A2. Also, 3 is an outer case, 31 is a button hole provided in the outer case 3, and 4 is a circuit board on which the slide switch 1 and the like are mounted. The coupling portion 23 is inserted into the button hole 31 and engages with the coupling hole (not shown) of the switch button B21, and the switch button A2 and the switch button B21 are integrally fixed. At the same time, it is slidably attached to the outer case 3. With respect to the dimensional relationship between the coupling portion 23 and the button hole 31, the direction of arrow a in FIG. 1 has only a gap to allow sliding, and the direction of arrow b in FIG. 2 corresponds to the slide stroke of the slide switch 1. There is a gap. The tip of the operation knob 11 is engaged with the engaging portion 22. The adhesive 5 is applied, and the operation knob 11 and the engaging portion 22 are adhered. Adhesive 5 is sufficiently applied so that the gap is filled. Since the switch button A2 and the switch button B21 are substantially fixed to the slide switch 1, the outer case 3 does not rattle. When a force in the direction of arrow b is applied to the switch button A 2, the switch button A 2, the switch button B 21, and the operation knob 11 slide together, and the slide switch 1 is operated.

For assembling, first, the switch button A2 and the switch button B21 are attached to the outer case 3. Next, the circuit board 4 on which the slide switch 1 is mounted is inserted in the direction of arrow a to complete the assembling. Even if there is a slight gap between the operation knob 11 and the engaging portion 22, there is no problem, so that the operation knob 11 and the engaging portion 22 can be engaged with each other by just throwing them near the roughly determined position. By applying the adhesive 5, the gap between the operation knob 11 and the engaging portion 22 is filled, and the slide switch 1, the switch button A2 and the switch button B21 are substantially fixed. Even without the adhesive 5, the slide switch 1, the switch button A2, and the switch button B21 are mechanically held. Therefore, unless the adhesive 5 has an extremely low viscosity, it is not necessary to set a curing time. Absent.

If the cured state of the adhesive 5 is a rubber-like elastic body, the slide switch 1 is bent and attached, and the positional relationship between the operation knob 11 and the engaging portion 22 changes depending on the position of the switch button. Even in such a case, the adhesive can be deformed and the error can be absorbed. Furthermore, the soft adhesive is easy to disassemble, and there is no problem in reassembly, and the gap between the operation knob 11 and the engaging portion 22 is filled even if the adhesive 5 is not applied again. There is no rattling.

When either the operation knob 11 or the switch button B21 is formed of a material having a poor adhesive property such as polyacetal, the adhesive 5 functions as a filling material that adheres with a weak adhesive force and rattles. Although it disappears, it can be easily separated and can be easily disassembled and reassembled. Even after reassembly, the shape of the adhesive is maintained and the function as a filler is maintained, so rattling does not occur.

[0011]

As described above, according to the present invention, since the switch button is adhered to the operation knob, the switch button is fixed to the switch and rattles or makes a noise even when vibration is applied. The effect is that there is nothing to do. On the other hand, at the time of assembling, a gap can be set for the engaging portions of the switch button and the operation knob, which has an effect of easy assembling.

Also, by using an adhesive whose cured state is a rubber-like elastic body, even if there is a slight positional deviation due to dimensional error, etc., the adhesive will deform and absorb errors and deviations. Therefore, it has the effect that it does not affect the operation and feeling of operation, and it has the effect that the adhesive will be torn off when disassembling, making it easy to disassemble. There is also an effect that the agent acts as a filler for the gap and the effect of preventing rattling continues.

Further, since at least one of the switch button and the operation knob is made of a material that is difficult to adhere to, it has an effect of preventing rattling due to the filling of the adhesive, but it is easy to disassemble and reassemble. The effect of preventing rattling continues even after reassembly.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.
It is sectional drawing of the part shown by AA in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Switch 11 ... Operation knob 2 ... Switch button A 21 ... Switch button B 22 ... Engagement part 23 ... Coupling part 3 ... Exterior case 31 ... Button hole 4 ... Circuit Substrate 5 ... Adhesive

Claims (3)

[Scope of utility model registration request] 1. A switch operating structure comprising a switch having an operating knob and a switch button which is engaged with the operating knob and partially protrudes out of an outer case. A switch button fixing structure characterized in that the switch button is adhered. 2. The switch button fixing structure according to claim 1, wherein the adhesive agent according to claim 1 is a rubber-like elastic body after being cured. 3. The switch button fixing structure according to claim 1, wherein at least one of the operation knob and the switch button according to claim 1 is formed of a material having a poor adhesive property.