JPH0525982Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a horn switch for use with a handle.

Conventionally, as shown in FIG. 4, a horn mechanism installed in a vehicle steering wheel is made by insert-molding a contact plate 2 formed of a conductive metal plate on the bottom side of a horn case 1. A horn plate 3 formed of a conductive metal plate is attached to protrude inward from the side, and a coil spring 4 is interposed between the opposing plates 2 and 3, and a coil spring 4 is installed on the upper side of the horn case 1. When the horn button 5 fitted in a slidable manner is pressed, the horn plate 3 is bent and deformed to bring the contacts 6 and 7 into contact, thereby generating a horn sound.

Problems to be Solved by the Invention However, this horn mechanism switch not only requires a large number of parts, but also requires the horn plate 3 to be assembled to the horn case 1 and the coil spring 4 to be fitted between the contact plate 2. It takes a lot of effort to assemble.

Means for Solving the Problems In the horn switch equipped with a handle according to the present invention, the contacts at the center of the plate are positioned relative to each other so that they can be contacted, and the conductive plate springs are arranged as a horn plate and a contact plate, facing each other at a distance. Both ends of each leaf spring are embedded and held in the same insulating holder to maintain the spacing, and one end of each leaf spring is made to protrude to the side of the insulating holder to form a terminal board for circuit connection. It is constituted by providing.

Function This horn stitch uses conductive leaf springs as the horn plate and contact plate, and both ends of each leaf spring are held integrally with the same insulating holder, allowing one side to flex so that it can contact the other side. It is assembled deformably and is constructed as a single unit by having one end of each leaf spring protrude sideways from the insulating holder and providing a terminal plate for circuit connection, so it is easy to assemble or assemble it. The assembly to the vehicle handle can be made uniform, and the number of parts can be reduced.

Embodiments The following description will be made with reference to FIGS. 1 to 3.

This horn switch is applied to constitute a contact part of a horn mechanism installed in a vehicle steering wheel, and FIGS. 1 and 2 show only the switch structure excluding the surrounding components.

The horn switch is a conductive leaf spring 10,1
1 as a contact plate and a horn plate, facing each other at a distance, and the left and right ends of each plate are PP,
Insulating resin holders 12 and 13 such as ABS etc.
It is assembled integrally by holding it in place. Each leaf spring 10, 11 has a contact point 1 at the center of the leaf.
4 and 15, and the plate portions having the contacts 14 and 15 are embedded and fixed in left and right resin holders 12 and 13 as bridging sides 10a and 11a. In addition, both left and right end portions 10b, 10
c, 11b, 11c are bent inward in the right angle direction to provide play that allows the bridging sides 10a, 11a to bend and deform freely, and are formed as end portions that are held by resin holders 12, 13. Terminal plates 10d and 11d for circuit connection are formed by further bending outward in the right angle direction from each end thereof, and these terminal plates are arranged to protrude laterally from the resin holders 12 and 13.

The horn switch constructed in this manner can be incorporated into the horn mechanism by arranging the leaf springs 10 and 11 in either direction as a horn plate or a contact plate. When assembling the switch mechanism, the resin holders 12 and 13 are used as members for fixing the switch mechanism in the recess of the vehicle handle, and as shown in FIG. 3, the terminal plate 10d,
11d is connected to the power source side and the horn sound generating mechanism side using lead wires 16 and 17. In this horn switch, if a push button is placed above the leaf spring 10 assembled as a horn plate, the leaf spring 10 is flexed and deformed by operating the push button, and the contact point 14 is changed to the contact point 15 of the leaf spring 11 which becomes the contact plate. It can be assembled to generate a horn sound when brought into contact with the horn. For the push button, when a handle cover base 18 made of a hard resin such as PP and a soft coating 19 such as PVC are integrally molded, a portion corresponding to the horn plate is formed as a flexible and deformable portion 20 using only the soft coating. It can also be used with a horn pad integrated type.

Effects of the invention As described above, the horn switch for handle equipment according to the present invention can be easily assembled to the handle because it is integrated into one unit, and the leaf spring is held in a resin holder so that it can be flexibly deformed. Therefore, there is no need to incorporate an elastic member such as a coil spring, and the degree of freedom in assembly can be expanded so that it can be applied to a protruding type horn mechanism.

[Brief explanation of the drawing]

Fig. 1 is a side view of the horn switch according to the present invention, Fig. 2 is a perspective view of the switch, Fig. 3 is an explanatory diagram showing the handle of the switch in an assembled state, and Fig. 4 is a horn mechanism according to a conventional example. FIG. 10, 11... Leaf spring, 10d, 11d... Terminal board for circuit connection, 12, 13... Resin holder, 14, 15... Contact.

Claims (1)

[Scope of utility model registration request] The contacts at the center of the plates are positioned relative to each other so that they can be contacted, and conductive plate springs are arranged as horn plates and contact plates at a distance from each other, and both ends of each plate spring are embedded and held in the same insulating holder. A horn switch equipped with a handle, characterized in that a distance is maintained between the two leaf springs, and one end of each leaf spring protrudes to the side of an insulating holder to provide a terminal plate for circuit connection.