JPS6331456Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention eliminates the need to apply a return spring to the contact holder or provide an automatic return mechanism such as an ejected engagement ball that contacts a fixed inclined surface. A sliding guide is provided which is inclined in the sliding direction with respect to the contact surface of the contact holder, and a contact holder is connected to the sliding guide, and a contact pressure spring is applied to the contact holder corresponding to the fixed contact row. When the contact holder is mounted, the contact holder is pressed, and the contact holder is slid in one direction according to the sliding guide, the contact pressure spring, which has a sufficiently long elastic action length, is elastically compressed to bring the contact into contact with the fixed contact row. When the pressure of the contact holder is released, the contact pressure spring is elastically expanded to cause the contact point to slide on the insulator, thereby causing automatic return.

As shown in FIG. 1, a conventional automatic return type sliding switch has an insulator 21 arranged with fixed contact rows 22 and fixed with a switch case 23 covered.
Insert the contact holder 24 that slides using the ceiling surface of the switch case 23 parallel to the contact surface of the upper fixed contact row 22 as a sliding guide, and
Apply the return spring 25 to the contact pressure spring 2.
7 can be attached freely, or the contact holder 34 can be inserted onto the insulator 31 in which the fixed contact rows 32 are arranged and the switch case 33 can be turned over and fixed as shown in FIG. A slope 35 is provided on the lower surface of the ceiling of the case 33, and the holder 34 has a spring 36.
In the case of FIG. 1, when the contact holder 24 is pressed and slid, the return spring 25 is compressed, and the second In the case of the figure, the ejection ball 37 is slid on the inclined surface 35 and the ejection ball 37 is
6 is elastically compressed to accumulate the force for automatic return, and parts for return such as a return spring or ejection ball are indispensable, and the switch assembly is also as described above. It has the disadvantage of requiring cumbersome procedures and jigs for the parts. It is an object of the present invention to eliminate such drawbacks and to enable smooth automatic return operation.

An embodiment of the present invention will be described with reference to FIGS. 3-5.

In the figure, reference numeral 1 denotes an insulator having a fixed contact array 2 arranged on its upper surface, and is fixed to the bottom of a switch case 3. The case 3 has walls 4 facing left and right,
A pair of sliding guides 5, 5 are integrally provided inside the contact holder 4, which is sloped downward in the sliding direction of a contact holder 7, which will be described later, and which is also sloped in the same manner with respect to the contact surface a of the fixed contact array 2. Although the left front wall and the upper ceiling wall shown in the figure are not necessarily required, if they are provided, a guide opening 6 is provided.

Reference numeral 7 denotes a contact holder in which inclined sliding surfaces 8, 8 on both left and right sides are fitted and connected to sliding guides 5, 5, and an operation protrusion shaft 9 parallel to the sliding guides 5 is provided on the front side, and a guide opening 6 is provided. protrude from This contact holder 7 is formed so that its lower surface is sufficiently separated from the upper surface of the insulator 1, and is provided with a blind hole 10 whose depth is increased upward from the center of the lower surface and front and rear contact insertion grooves 11, 11.

The contact 12 is formed in a U shape, and both front and rear legs 13, 13 are fitted into contact insertion grooves 11, 11. In the permanent position shown in FIG.
Protruding contacts 14, 14 are provided which do not contact the fixed contact row 2 at the sliding position shown in FIG. The lower end is connected to the protruding contact 14 of the contact 12,
It comes into elastic contact with the upper surface between 14 and 14.

The automatic return type sliding switch 16 described above is the sixth
As shown in the figure, the inner end 20 of the operating lever 19, which is attached to the lower surface of the main body 18 of the automobile direction switch 17 and is free to rotate and slide, is brought into contact with the operating protrusion shaft 9.

In the embodiment, the direction indicating switch 17
The operating lever 19 is pushed in the direction of the arrow in FIG. 6, and the contact holder 7, which is in the permanent position as shown in FIG. 3, is pushed through the operating protrusion shaft 9 and is slid as shown in FIG. Since this sliding occurs along the sliding guide 5, the holder 7 approaches the top surface of the insulator 1, and the contacts 12 compress the contact pressure springs 15 to bring about an ON action in which they come into contact with the fixed contact row 2. When the pressure of the operating lever 19 is released, the contact 12 tends to protrude due to the elasticity of the contact pressure spring 15 and tries to slide on the contact surface a. On the other hand, the extension of the contact pressure spring 15 acts perpendicularly to the contact surface a, and its force acts on the contact holder 7, which moves along the sliding guide 5 as shown in FIG. automatically returns to its permanent position.

The automatic return type sliding switch of the present invention, as shown in FIG. 7, has a sliding guide 5a that slopes the lower surface of the ceiling of the switch case 3a to which the insulator 1a is attached with respect to the contact surface a' of the fixed contact row 2a. The contact holder 7a is pressed and slides along the sliding guide 5a to release the contact pressure spring 1 of the contact 12a.
5a may also be compressed.

As clarified from the above description, the present invention provides contact holders 7, 7a that slide by pressure on insulators 1, 1a in which fixed contact rows 2, 2a are arranged, and contact surfaces a of the fixed contact rows 2, 2a.
Continuously connected to sliding guides 5, 5a inclined with respect to a′,
The contacts 12, 12a move by compressing the contact pressure springs 15, 15a as they slide, and the springs are configured to store force for automatic return. It is usually provided as an accessory, and in the case of the present invention, a contact pressure spring 15 with a sufficiently long elastic action length is used.
15a can be selectively used, the structure is simple, and it also has the advantage of being easily assembled by completely omitting parts that generate automatic return force, such as return springs and engaging balls.

[Brief explanation of the drawing]

Figures 1 and 2 are vertical side views illustrating a conventional automatic return type sliding switch, Figures 3 to 5 show an embodiment of the present invention, Figure 3 is a vertical side view of the center part, and Figure 4 is a vertical side view of the center of the switch. Figure 3 is a cross-sectional view taken along the line A-A, Figure 5 is a vertical cross-sectional side view of the center showing the sliding movement of the contact holder 7, etc., Figure 6 is an installation example diagram, and Figure 7 is a schematic side view of another embodiment. It is shown by a longitudinal cross-sectional view. 1, 1a... Insulator, 2, 2a... Fixed contact row, 5, 5a... Sliding guide, 7, 7a...
Contact holder, 12, 12a... Contact, 15, 15a... Contact pressure spring.

Claims (1)

[Scope of utility model registration request] An insulator having a fixed contact array arranged thereon, and a contact holder provided in the switch case with a sliding guide that is inclined in a sliding direction with respect to the contact surface of the fixed contact array of the insulator, the contact holder being provided inside the switch case and sliding on the insulator. are slidably connected to the above-mentioned sliding guide, and the contact holder is equipped with contacts that correspond to the fixed contact rows within the switch case, and a resilient action length is provided between the contact holder and the contacts. An automatic return type sliding switch featuring a long contact pressure spring.