JPH0722439U - Switch device for vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a switch device for a vehicular lamp, in which assembly work is simplified, workability is improved, and automatic assembly is possible. [Structure] The switching lever 16 is provided with an engaging groove portion 19 extending from the end face of the switching lever 16 in the axial direction of the switching lever 16.
The contact 20 is formed by bending a metal leaf spring material to engage at least the engaging groove portion 19 and the pressing surface portion 20a via the elastically deforming portion 20b in the engaging portion 22. And the contact portion 2 is formed on the pressing surface portion 20a.
The contact 20 is attached to the switching lever 16 by engaging the engaging portion 22 with the engaging groove portion 19.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switch device for a vehicle lighting device such as a vehicle interior light.

[0002]

[Prior art]

 Conventional switch devices of this type are disclosed in Japanese Utility Model Laid-Open No. 2-34334 and Japanese Utility Model Laid-Open No. 2-22520. In this switch device, by swinging the switching lever with respect to the contact portions of a plurality of circuit patterns mounted on the housing, the ball contact of the switching lever selectively connects the contact portions. Then, the electrical connection is switched.

In this switch device, the mounting structure of the ball contact in the switching lever includes a contact insertion hole portion 41 provided at an end portion of the switching lever 40 as shown in FIG. Reference numeral 41 is a bottomed hole which is open at the back surface of the switching lever 40 and is perpendicular to the axis of the switching lever 40. Then, the spring 42 and the ball contact 43 are inserted into the contact insertion hole portion 41, the ball contact 43 is pressed by the spring 42, and the ball contact 43 is pressed against the contact portion 44 of the circuit pattern.

[0004]

[Problems to be solved by the device]

 However, in the above-described conventional switch device for a vehicle lamp, since the mounting structure of the ball contact 43 is the above-mentioned structure, when the switching lever 40 is assembled into the housing 45, the contact insertion hole 41 is inserted into the contact insertion hole 41. The spring 42 and the ball contact 43 should be inserted (set) and both hands should be carefully used so that the spring 42 and the ball contact 43 do not fall off. If the (spring 42 and ball contact 43) fall off, the assembly work will have to be redone from the beginning, and parts may roll and be lost. For this reason, there is a problem in that the assembling work is unstable, a great amount of labor is put on the worker, and the work cannot be automated.

The present invention has been made to solve the above problems, and its purpose is to simplify the assembling work, improve workability, and enable automatic assembling. It is to provide a switch device for a vehicle lamp.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, according to the present invention, by swinging a switching lever with respect to the contact portions of a plurality of circuit patterns, the contacts provided in the switching lever selectively short-circuit the contact portions. In a switch device for a vehicular lamp that switches electrical connection by means of a switch, an engaging groove is formed in the switching lever, and a metal leaf spring material is bent to form the contact in at least the engaging groove. An engaging portion to be engaged and a pressing surface portion is formed on the engaging portion via an elastically deforming portion, and a contact portion is formed on the pressing surface portion, and the contact is formed by connecting the engaging portion to the engaging groove portion. It is characterized in that it is engaged and attached to the switching lever. Then, the contact is provided with one locking portion, and the switching lever is provided with the other locking portion for releasably locking one locking portion, so that when the contact is mounted on the switching lever, One locking part may be locked to the other locking part.

[0007]

[Action]

 With this configuration, the contact provided on the switching lever is replaced with a ball contact and a spring, and a contact made of a leaf spring material is adopted, so that the number of parts is reduced and the supply assembly like the ball contact and the spring is performed. This makes it easy to assemble the contacts without any difficulty, simplifies the assembly work, improves workability, and enables automatic assembly.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of an exploded state of a switch device for a vehicle lamp according to the present invention, FIG. 2 is a sectional view taken along line 1A-A in FIG. 3, FIG. 3 is a sectional view taken along line 2B-B, and FIG. FIG. 3 is a perspective view of a switch lever and a contact of a switch device of a vehicle lamp according to the invention in an exploded state. In FIG. 1, the X1 side is the front, the X2 side is the rear, the Y1 side is the left, and the Y2 side is the right.

A vehicular lamp including a switch device according to the present invention includes a housing 1, which is a rectangular flat body in a plan view, and includes an operating portion 2, a switch / lamp mounting portion 3, and It is divided into The lens 4 is mounted on the switch / lamp mounting portion 3, and for this reason, the switch / lamp mounting portion 3 has lens engaging protrusions on the left and right sides of the center and the rear end thereof, respectively. 5 is projected.

Further, a lamp mounting recess 6 is formed substantially in the center of the switch / lamp mounting portion 3, and lamp connecting terminals 7a and 7b are mounted on the front and rear sides of the lamp mounting recess 6, respectively. The lamp 8 is connected to the lamp connection terminals 7a and 7b.

Further, the switch / lamp mounting portion 3 is provided with a first circuit pattern 9, a second circuit pattern 10 and a third circuit pattern 11, and the second circuit pattern 10 is the first circuit pattern 10. It is located between the circuit pattern 9 and the third circuit pattern 11. The first circuit pattern 9 has a contact portion 9a. The second circuit pattern 10 has a contact portion 10a and a conductor portion 10b. A slit-shaped contact neutral holding portion 13 is formed at the center of the contact portion 10a, and the conductor portion 10b is the lamp. It is connected to the connection terminal 7a. The third circuit pattern 11 has a contact portion 11a and a conductor portion 11b, and mounting holes 14 are formed in front of and behind the conductor portion 11b. These mounting holes 14 are screw holes 15 Are overlaid. The contact portions 9a and 11a of the first and third circuit patterns 9 and 11 are arranged in a V shape in a plan view with the contact portion 10a of the second circuit pattern 10 inside.

The first circuit pattern 9 is a door circuit side terminal (not shown), the second circuit pattern 10 is a common terminal (not shown), and the third circuit pattern 11 is a ground terminal (FIG. (Not shown), respectively.

A switching lever 16 is attached to a central portion on the rear side of the switch / lamp mounting portion 3 such that an intermediate portion thereof is supported by a support shaft (rivet) 16a and is swingable in the left-right direction. A contact mounting portion 17 is provided at the tip of the switching lever 16, and a knob 18 is formed at the rear of the switching lever 16.

The contact mounting portion 17 is provided with engaging groove portions 19 formed on the left and right side surface portions 16 b and 16 c of the switching lever 16 from the end surface 16 d in the axial direction of the switching lever 16. The contact 20 is attached to the tip of the switching lever 16 so as to be engaged with the engaging groove 19.

That is, the contact 20 is formed by bending a metal leaf spring into a C-shaped cross section to form a pressing surface portion 20a and elastically deforming portions 20b on the left and right sides of the pressing surface portion 20a. A hemispherical contact portion 21 is formed (squeezed) in the central portion, and an engaging portion 22 is formed at the end of the elastically deforming portion 20b. In the contact 20 thus configured, the engaging portion 22 thereof is engaged with the engaging groove portion 19 of the switching lever 16 and attached to the tip portion of the switching lever 16.

Further, in the switch / lamp mounting portion 3, to the left of the contact portion 11 a of the third circuit pattern 11 and to the right of the contact portion 9 a of the first circuit pattern 9, that is, the switching lever 16 a. The left and right overrun positions are provided with stoppers 23 and 24.

The switch / lamp mounting portion 3 is mounted with the lens 4 by removably engaging an edge portion with the lens engaging projection portion 5, and the knob 18 of the switching lever 16 is a lens 18 4 to the operation portion 2 side from the rear end portion.

Next, the operation of the switch device for a vehicular lamp configured as described above will be described. When the switching lever 16 is in the neutral position, the contact 20 is in the position shown in FIG. 5, that is, on the contact portion 10a of the second circuit pattern 10, and therefore the switch cannot be turned on.

The knob 18 of the switching lever 16 is rotated leftward in FIG. 1 to position the contact 20 at the position, and the contact portion 21 short-circuits the contact portion 9a and the contact portion 10a. By doing so, the first circuit pattern 9 and the second circuit pattern 10 are brought into conduction, and the door circuit terminal is energized.

Further, the knob 18 of the switching lever 16 is rotated rightward in FIG. 1 to position the contact 20 at the position, and the contact portion 21 connects the contact portion 10a and the contact portion 11a. Is short-circuited, the second circuit pattern 10 and the third circuit pattern 11 are electrically connected, and the lamp 8 is turned on.

When the contact portion 21 of the contact 20 is on the contact portions 9a and 11a, the height dimension of the elastically deformable portion 20b of the contact 20 is h, but the contact portion 21 of the contact 20 is When the contact portion 9a and the contact portion 10a or between the contact portion 10a and the contact portion 11a are short-circuited between the contact portion 9a and the contact portion 10 and between the contact portion 10a and the contact portion 11a, The engaging legs 20b 1 and 20c 2 of the contact 20 are elastically deformed to have a height dimension H. Further, in order to make the elasticity (springiness) of the contact 20 proper, a slit 25 may be formed in the elastically deforming portion 20b as shown in FIG.

Another embodiment of the present invention is shown in FIGS. 7 and 8. In the contact 20 in this embodiment, a metal leaf spring material is bent into a C-shaped cross section to form a surface portion 26a and a pressing surface portion 26c on one side of the surface portion 26a via an elastically deforming portion 26b. Is a cantilever spring in which engaging leg portions 26d are formed on the left and right of the surface portion 26a, and a lance 27, which is one locking portion, is formed in the center portion of the surface portion 26a, and the lance 27 of the pressing surface portion 26c is formed. A hemispherical contact portion 28 is formed in the central portion, and an engaging portion 29 is formed at the end portion of the engaging leg portion 26d. Thus, cantilevering the contact 20 allows proper elasticity (springiness).

In the contact 20 thus configured, the engaging portion 29 is engaged with the engaging groove portion 19 of the switching lever 16, and the lance 27 is formed on the surface portion of the switching lever 16. It is locked in the locking recess 30 which is the other locking part and is attached to the tip of this switching lever 16. The other configurations and operations are the same as in the case of the above-described embodiment.

Further, in the contact 20 shown in FIG. 7, the left engagement leg portion 26d is formed by cutting and raising the central portion of the elastically deformable portion 26b, but as shown in FIG. 6d may be formed by cutting and raising the front and rear portions of the elastically deforming portion 26b.

Another embodiment of the present invention is shown in FIGS. The contact 20 in this embodiment is a cantilever spring in which a leaf spring material made of metal is bent into a U-shaped cross section to form a surface portion 31a and a pressing surface portion 31c at an end of the surface portion 31a via an elastically deforming portion 31b. A locking hole 32, which is one of the locking portions, is formed at the center of the surface portion 31a, and a hemispherical contact portion 33 is formed at the center of the pressing surface portion 31c. Further, the contact mounting portion 17 at the tip of the switching lever 16 is provided with an engagement groove portion 34 and a locking projection portion 35 which are the other engagement portion.

The contact 20 engages the surface portion 31 a of the contact portion 31 with the engaging groove portion 34 of the switching lever 16 and locks the locking projection portion 35 in the locking hole 32, so that the switching lever It is attached to the tip of 16. The other structure and operation are the same as those in the above-described embodiment.

In the above-described embodiment, the contacts provided on the switching lever 16 are changed to ball contacts and springs, and the contacts 20 made of a leaf spring material are adopted. Also, it is possible to easily assemble the contacts without the difficulty of supplying and assembling like a spring, simplifying the assembly work, improving workability, and enabling automatic assembly.

[0028]

[Effect of device]

 As described above, according to the present invention, an engaging groove portion is formed in the switching lever, and the contact is provided with an engaging portion that engages at least the engaging groove portion by bending a metal leaf spring material. A pressing surface portion is formed on the engaging portion via an elastically deformable portion, and a contact portion is formed on the pressing surface portion, and the contact is attached to the switching lever by engaging the engaging portion with the engaging groove portion. That is, by replacing the contact provided on the switching lever with a ball contact and a spring and using a contact made of a leaf spring material, the number of parts is reduced and the supply assembly like the ball contact and the spring is reduced. It is easy to assemble the contacts without difficulty, and the assembly work is simplified and workability is improved, and automatic assembly is possible.

Then, the contact is provided with one locking portion, and the switching lever is provided with the other locking portion that releasably locks one locking portion so that the contact can be connected to the switching lever. By locking one locking portion to the other locking portion at the time of mounting, the switching lever of the above contact can be mounted reliably.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a switch device for a vehicular lamp according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG.

FIG. 4 is a perspective view showing a disassembled state of a switching lever and a contact of a switch device for a vehicle lighting device according to an embodiment of the present invention.

FIG. 5 is an explanatory diagram of positions of contacts.

FIG. 6 is a perspective view of another embodiment of a contact.

FIG. 7 is a perspective view showing a disassembled state of a switching lever and a contact of a switch device for a vehicle lamp according to another embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a state in which a contact is attached to a switching lever of the switch device.

FIG. 9 is a perspective view of another embodiment of a contact.

FIG. 10 is a sectional view of a switching lever and a contact portion of a switch device for a vehicle lamp according to another embodiment of the present invention.

FIG. 11 is a perspective view showing a disassembled state of a switching lever and a contact of a switch device of a vehicular lamp according to another embodiment of the present invention.

FIG. 12 is a view from the direction of FIG. 10C.

FIG. 13 is a sectional view of a ball contact mounting portion of a switching lever of a conventional vehicle lighting switch device.

[Explanation of symbols]

 16 Switching Lever 19 Engagement Groove 20 Contact 20a Pressing Surface 20b Elastic Deformation Part 21 Contact Part 22 Engagement Part 27 Lance (One Locking Part) 30 Locking Recess (Other Locking Part)

Claims (2)

[Scope of utility model registration request] 1. A vehicle for switching electrical connection by swinging a switching lever with respect to contact portions of a plurality of circuit patterns so that contacts provided in the switching lever selectively short-circuit the contact portions. In a switch device for a lighting device, an engagement groove is formed in the switching lever, and the contact is formed by engaging a metal leaf spring member and engaging the engagement portion with at least the engagement groove. A pressing surface portion is formed via an elastically deformable portion, a contact portion is formed on the pressing surface portion, and the contact is attached to a switching lever by engaging the engaging portion with the engaging groove portion. Switch device for vehicle lighting. 2. The contact is provided with one locking portion, and the switching lever is provided with the other locking portion for releasably locking one locking portion so that the contact can be locked to the switching lever. The switch device for a vehicle lamp according to claim 1, wherein one of the locking portions is locked to the other locking portion at the time of mounting.