JPH0143781Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a mounting device for a sliding knob, and more specifically, a device for mounting a sliding knob that can be installed safely and that has a simple structure. This invention relates to a knob mounting device.

BACKGROUND TECHNOLOGY AND PROBLEMS A mounting base for a sliding knob serves to slidably support a knob that operates a slide switch or a movable piece of a sliding variable resistor.

Conventionally, for example, in a slide switch,
When engaging the knob with the movable piece of this switch, the knob may be press-fitted into the tip of the movable piece and connected, or the knob may be moved between a pair of actuating pieces that are slidably supported on a mounting base such as a chassis. Sometimes the tip of the piece was interposed. However, in the case of the former direct press-fitting method, there is a drawback that the feeling of sliding the knob directly reflects the operating feeling of the movable piece of the switch, and it does not feel good in the hand. In the case of the latter method using a mounting base, the knob 1 is mounted as shown in FIG. 1, for example. That is, the hook part 5 of the knob leg part 4 extending downward from the plate part 3 of the knob 1 engages with the bottom surface of the guide rail 6, and the back surface of the plate part 3 engages with the top surface of the guide rail, so that the knob 1 is slidably attached. , the tip 9 of the movable piece in the switch case 8 between the pair of operating pieces 7 of the knob.
I am trying to intervene. For this reason, the operating feel of the movable piece is absorbed inside the pair of actuating pieces 7 and is not directly reflected in the operating feel of the knob, which is preferable to the direct press-fit method described above, but it still has the following drawbacks. be. That is, when attaching the knob 1 to the mounting base 2, the legs 4 are likely to bend inward and be damaged.
In particular, in the case of a synthetic resin knob that is plated with metal and has poor elasticity, there is a greater risk of breakage during installation.

Purpose of the invention In view of the above-mentioned problems, the present invention provides a simple sliding knob with a structure that allows safe installation even when using a knob with poor elasticity, such as a knob made of synthetic resin with metal plating. This is an attempt to propose a device.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 2 to 6. As shown in FIG. 2, the mounting base 2 on which the sliding knob 1 is attached is
two first guide rail sections 10 parallel to each other;
It is formed to include a guide rail consisting of two second guide rail parts 11 parallel to each of these first guide rail parts 10. The mounting base 2 can be made of metal, synthetic resin, etc., but here a synthetic resin one with a guide rail integrally molded is used. The second guide rail portion 11 is formed to be more flexible than the first guide rail portion 10 in the lateral direction, that is, in a direction orthogonal to the length direction of the second guide rail portion 11. To this end, the second guide rail part 11 can be formed of a different material from the first guide rail part 10, or if they are made of the same material, the thickness can be reduced; however, here, the second guide rail part 11 is made of the same material. A material formed with a thinner thickness is used. In addition, the knob 1 attached to the mounting base 2 has a plate portion 3, a knob operation portion 12 provided on the upper surface of the plate portion 3, four engaging legs 4 provided on the lower surface of the plate portion 3, and a pair of operating pieces. 7, and the leg portion 4 has a hook portion 5 at its tip. In order to facilitate sliding of the knob 1 when the knob 1 is attached to the mounting base 2, a pair of protrusions 3a are provided on the back surface of the plate portion 3.
Further, a protrusion 4a is provided on the leg portion 4, and a projection 5a is provided on the upper surface of the hook portion 5, and the protrusion 3a, 4a and the protrusion 5a have a semicircular cross section.

Next, the structure of the slide type switch mounting device with the knob 1 mounted on the mounting base 2 will be explained with reference to FIGS. 3 to 5. Leg 4 of knob 1
is press-fitted from above into the gap S between the first guide rail section 10 and the second guide rail section 11, and as shown in FIGS. 4 and 5, the hook section 5 is inserted into the second guide rail section 11. In the engaged state, the hook portion 5
The protrusion 5a is in contact with the bottom surface of the second guide rail section 11, and the protrusion section 3a of the plate section 3 is in contact with the top surface of the first guide rail section 10. Before the knob 1 is attached to the mounting portion 2, the vertical distance L between the protrusion 3a of the plate portion 3 and the protrusion 5a of the hook portion 5 indicates that the upper surface of the first guide rail portion 10 and the The first guide rail section 10 and the second guide rail section 11 are arranged such that the vertical distance l between the second guide rail section 10 and the bottom surface of the second guide rail section 11 is larger.

In order to attach the knob 1 to the mounting base 2 constructed in this way, the leg part 4 of the knob 1 is press-fitted into the gap S between the first guide rail part 10 and the second guide rail part 11, as shown in FIG. As shown, first the second
The guide rail portion 11 is laterally bent by the hook portion 5 at the tip of the leg portion 4 of the knob 1, and the gap S between the first guide rail portion 10 and the second guide rail portion 11 becomes larger. At this time, since the leg portion 4 is supported on one side by the first guide rail portion 10,
Also, because the second guide rail section 11 is flexible, it can be press-fitted through the gap S between the first guide rail section 10 and the second guide rail section 11 without curving inward. After the protrusion 3a of the plate portion 3 of the knob 1 comes into contact with the upper surface of the first guide rail portion 10, when the knob 1 is further pressed,
The hook portion 5 and the bottom surface of the second guide rail portion 11 engage with each other. In this way, the knob 1 is attached to the mounting base 2. At this time, the second guide rail portion 11 elastically returns to its original state. Also, from the relationship between the distance L on the knob 1 and the distance l between the first guide rail section 10 and the second guide rail section 11, that is, l>L, the protrusion 3a of the plate section 3 is The protrusion 5a of the hook portion 5, which is integrally formed with the plate portion 3, is elastically pressed upward by the first guide rail portion 10 while in contact with the upper surface thereof, and the protrusion 5a of the hook portion 5, which is integrally formed with the plate portion 3, is pressed upwardly by the first guide rail portion 10. While in contact, they are elastically pressed downward. In this way, knob 1
movement in the vertical direction is suppressed. Also, leg portion 4
The knob 1 is prevented from moving in the left-right direction by the contact between the protrusion 4a and the side surface of the first guide rail section 10. If a movable piece, in this case the tip 9 of the movable piece inside the switch case 8, is interposed between the projections 7a of the operating piece 7 of the knob 1, the movable piece will be moved in the direction of arrow a by operating the knob 1. It can be reciprocated in a straight line.

Application Example The present invention has been explained above based on an example.
The present invention is not limited to this example,
Various changes are possible.

For example, it can also be provided between the two second guide rail sections 11 and the two first guide rail sections 10. In this case, the lower surface of the plate portion 3 is formed to be supported by the upper surface of the first guide rail, and the direction of the hook portion 5 is also formed to be opposite to that in this embodiment. . Also,
In the above embodiment, the knob 1 is described as reciprocating in a straight line, but it may also be reciprocating in an arc.

Effects of the invention Since the mounting part of the slide type knob of the present invention is constructed as described above, when the knob is press-fitted and installed, there is no risk of damage to the engaging leg part of the knob. Even resin knobs can be installed safely and easily.

[Brief explanation of drawings]

FIG. 1 is a schematic vertical sectional view of a conventional sliding knob mounting device, and FIG. 2 is an exploded perspective view of an embodiment of the sliding knob mounting device according to the present invention.
Fig. 3 is a plan view of the sliding knob mounting device shown in Fig. 2, Fig. 4 is a sectional view taken along line A-A' in Fig. 3, and Fig. 5 is a sectional view taken along line A-A' in Fig. 3. 6 is a plan view showing the assembly process of the sliding knob mounting device shown in FIG. 3; FIG. 6 is a sectional view taken along a line; In addition, in the symbols used in the drawings, 1...knob, 2...mounting base, 3...plate part, 4...
Leg part, 5... Hook part, 6... Guide rail part, 8
... switch case, 10 ... first guide rail section, 11 ... second guide rail section.

Claims (1)

[Scope of utility model registration request] A sliding knob mounting device comprising a knob mounting base having a guide rail and a sliding knob mounted on the knob mounting base so as to be able to slide along the guide rail, the sliding knob having a first guide rail portion; , the guide rail is constituted by a second guide rail part that extends along the first guide rail part and is flexible in a direction perpendicular to the length direction of the first guide rail part; A hook portion is provided on the leg portion, and the engaging leg portion is press-fitted into the gap between the first guide rail portion and the second guide rail portion using the deflection of the second guide rail. Therefore, the sliding knob mounting device is configured such that the hook portion of the engaging leg portion is engaged with the second guide rail to attach the sliding knob to the knob mounting base.