JPH04127934U - Vehicle lighting switch structure - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the vehicle light switch, which has a structure in which the fixed contact of the switch and the socket terminal of the light source bulb are connected together, to achieve vibration resistance without impairing the sense of control. without damaging the
Reduces the number of component parts and improves assembly workability. [Structure] A notch 8a is provided in the operating lever to form a space c. A movable contact protruding into a hemispherical shape is provided on the long side of the L-shaped movable contact piece 11, and the short side thereof is embedded and fixed in the operating lever 8. A concave spherical fixed contact corresponding to the above-mentioned movable contact is formed on the fixed terminal 9A.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention makes it possible to elastically attach the fixed terminal of the switch to the terminal of the light source bulb of the vehicle lamp. It is related to a switch with a pressure-contact structure, such as a room lamp. How is the light installed near the driver's seat suitable as a switch for blinking operation? be.

0002

[Conventional technology]

FIG. 5 is a plan view showing a conventional example of this type of switch, and a cross section taken along line A-A' is shown in FIG. 6. 1 is a wiring board provided with three positioning protrusions 1a, 1b, and 1c. . Reference numeral 2 denotes a light source bulb that contacts and conducts with the fixed terminal 3A. A hook-shaped portion 3a is formed on the fixed terminal 3A, and this hook-shaped portion 3 a is engaged with the positioning protrusion 1b, and is fixed to the substrate 1 by the rivet 3c. ing. This fixed terminal 3A is constructed by processing sheet metal, and one end of it is bent. A spring piece 3d is formed. The light source bulb 2 has its terminal abutted against the spring piece 3d, and the elasticity of the spring piece 3d Pressed together by force. Reference numeral 4 denotes a manual operation lever, which is pivotally connected to the board 1 by a pivot pin 5. . A ball 6 that acts as a movable contact is arranged at one end of this manual operation lever 4. , are urged in the extrusion direction by a spring 7.

0003 When the manual operation lever 4 is rotated about the pivot pin 5, the ball 6 is rotated. The fixed terminals are spaced apart from each other along the arc of the trajectory drawn, and are spaced apart from each other via the fixed terminal 3A. 3B and 3C are provided. These fixed terminals 3B and 3C each have a hook-shaped portion 3a located on a positioning protrusion 1a. , 1c and arranged radially around the pivot pin 5, the rivets 3c It is fixed to the substrate 1 by.

0004 According to the conventional vehicle lamp switch structure described above, in the state shown in FIG. A and 3B are electrically connected through the ball 6, and the light source bulb 2 is electrically connected to the fixed terminal 3B. has been done. Operate the operating lever 4 counterclockwise (counterclockwise) in FIG. 5 to move the ball 6 to the fixed terminal 3. When A and 3C are brought into contact, the terminal of the light source bulb 2 is electrically connected to the fixed terminal 3C. . During the above operation, the ball 6 climbs over the fixed terminals 3A and 3C to the fixed terminals 3A and 3C. The operator receives a moderate response since the drop occurs during the period. Also, the above moderation The force maintains the switch's operating position (conducting state) stably, even when subjected to vibration. It's safe.

[0005]

[Problem that the idea aims to solve]

According to the conventional switch structure shown in FIGS. 5 and 6, a. Assuming that the light source bulb 2 and the switch mechanism are properly grounded, There is no need to connect the light source bulb and the switch with an electric wire.

[0006] b. Since the operator receives a moderate response, the operation feeling is good and erroneous operation is avoided. There is no risk of and, c. Must have excellent vibration resistance.

[0007] However, it has a structure in which the ball 6 is biased by a spring 7. Therefore, the structure is complex and there are many component parts, making assembly difficult.

[0008] In particular, during the assembly process, the ball 6 was bounced by the spring 7, jumped out, and fell off. There are problems such as items being damaged or lost, and even experienced workers have to deal with a lot of trouble. Due to the effort and time required, the product inspection pass rate is low.

[0009] This invention was made in view of the above circumstances, and a. Assuming that the light source bulb 2 and the switch mechanism are properly grounded, There is no need to connect the light source bulb and the switch with an electric wire.

0010 b. Since the operator receives a moderate response, the operation feeling is good and the operation is easy. There is no risk of and, c. Must have excellent vibration resistance.

[0011] This switch has a simple structure and is easy to assemble without sacrificing the advantages of the conventional example. The purpose is to provide a

0012

[Means to solve the problem]

As a structure for achieving the above object, a switch structure of a vehicle lamp according to the present invention is provided. The structure is integrally connected to a spring piece that is pressed and electrically connected to the terminal of the light source bulb of the vehicle lamp. and a fixed terminal made of electrically insulating material that is pivotally supported for rotation opposite to the fixed terminal. manual operating lever, and the terminal attached to the manual operating lever and making contact with the fixed terminal above. , a conductive movable terminal and a movable terminal adjacent to the fixed terminal along the rotation locus arc of the movable terminal. In a vehicle light switch equipped with a fixed terminal installed in contact with the , A concave hemispherical fixed contact is formed on the fixed terminal, and the manual operation lever is A space is formed by cutting out the part where the bar faces the hemispherical contact part, and A movable contact piece made of a leaf spring having an L-shaped cross section is constructed separately from the L-shaped piece. A movable contact is formed that bulges out in a hemispherical shape from one side, and one of the L-shaped pieces is connected to the Face the cutout space and bury and fix the other side to the manual operation lever. The spring elasticity of the movable contact piece made of a spring brings the movable contact into pressure contact with the fixed contact. The movable contact made of the leaf spring is bent in the cutout space, and the movable contact is fixed. It is characterized by having a structure that can be displaced in a direction away from a constant contact point.

[0013]

[Effect]

According to the above configuration, the convex movable contact of the movable contact piece made of a leaf spring is connected to the fixed terminal. Since it fits into the concave fixed contact, it provides a sense of moderation, and the fit described above It has excellent vibration resistance (conductivity does not change even when subjected to vibration).

[0014] Moreover, since no ball spring means are used, assembly is easy. No special skill is required.

[0015]

【Example】

FIG. 3 is a plan view showing one embodiment of a switch structure for a vehicle lamp according to the present invention. FIG. 5 is a diagram corresponding to FIG. 5 in the conventional example described above. The BB' cross section is shown in Figure 4. show. 1 is a circuit board, and 2 is a light source bulb. An electrically insulating material ( In this example, an operating lever 8 made of (synthetic resin) is rotatably pivoted by a pivot pin 5. It is worn. The operating lever 8 is attached to the substrate 1 near the end facing the light source bulb 2. Opposing notches 8a are provided. As a result, the illustrated space c is formed.

[0016] On the other hand, a fixed terminal 9A having an L-shaped cross section is configured and fixed to the board 1 with a rivet 10. do. One side of the L shape acts as a spring piece 9a and is pressed against the terminal of the light source bulb 2. I can't stand it. Fixed terminals 9B and 9C are arranged oppositely and spaced apart on both sides of the fixed terminal 9A via the fixed terminal 9A. is provided. 1d and 1e shown in FIG. 3 are stoppers that limit the rotation of the operating lever 8. It is. Figure 1 shows an enlarged view of section D, which is surrounded by a chain line in Figure 4, and an exploded oblique view of the section. A perspective view is shown in Figure 2.

[0017] The movable contact piece 11 has an L-shaped cross section, and has a tip on its long side (horizontal side in the figure). The near end bulges downward to form a movable contact 11a. Its short side (perpendicular in the figure) (side) is embedded and fixed in the operating lever 8 made of synthetic resin. This allows the movable The long side of the contact piece 11 acts as a leaf spring and is formed by the notch 8d of the operating lever 8. It can be deflected within the space c. The remaining cutout portion 8b touches the stoppers 1d and 1e shown in FIG. The strength and rigidity necessary for regulating the rotation angle of the operating lever 8 are maintained.

[0018] As shown in FIG. 2, the movable contact 11a has a hemispherical shape that is convex downward. However, the fixed contact 9c has an upwardly concave hemispherical shape (more specifically, it forms a part of a hemispherical surface). shape). The movable contact 11a is pressed against the fixed terminals 9A and 9B as shown by the arrow e in FIG. When fitted into the spherical recess, the fixed contacts 9A and 9B are electrically connected. 9b shown in FIG. 2 is a hole or recess that fits into a terminal of a light source bulb (not shown); As a result, the terminal of the light source bulb is connected to the fixed terminal 9A and the fixed terminal via the movable contact piece 11. Conducted to 9B. In this state, the convex movable contact 11a is connected to the concave fixed contact 9c. Since they are fitted, the operating lever 8 will rotate even if subjected to vibration or shock, and the contact continuity will be maintained. There is no risk of natural change. Also, when turning the operating lever 8, the movable contact 11a rides on the outside of the fixed contact 9c. After that, it will fall to another fixed contact (for example, 9c' in Figure 2), so the operator should exercise caution. It's given and it feels good. As mentioned above, this embodiment uses a ball spring hand like the conventional example shown in FIG. Since moderation is provided without the use of steps, there is no need for ball spring means. There is no difficulty in assembly work.

[0019]

[Effect of the idea]

As mentioned above, it is integrated into the spring piece that is pressed and conductive to the terminal of the light source bulb of the vehicle lamp. A series of fixed terminals and an electrical insulator rotatably supported opposite the fixed terminal. a manual operating lever made of flexible material, and a fixed end attached to the manual operating lever; A movable terminal that contacts and conducts with the child, and a movable terminal that contacts and conducts the movable terminal, and the fixed A vehicle light switch equipped with a fixed terminal installed adjacent to the terminal. Applying this invention to A concave hemispherical fixed contact is formed on the fixed terminal, and the manual operation lever is A space is formed by cutting out the part where the bar faces the hemispherical contact part, and A movable contact piece made of a leaf spring having an L-shaped cross section is constructed separately from the L-shaped piece. A movable contact is formed that bulges out in a hemispherical shape from one side, and one of the L-shaped pieces is connected to the Face the cutout space and bury and fix the other side to the manual operation lever. The spring elasticity of the movable contact piece made of a spring brings the movable contact into pressure contact with the fixed contact. The movable contact made of the leaf spring is bent in the cutout space, and the movable contact is fixed. If the structure is such that it can be displaced in the direction away from the fixed contact point, a. Assuming that the light source bulb 2 and the switch mechanism are properly grounded, There is no need to connect the light source bulb and the switch with an electric wire.

[0020] b. Since the operator receives a moderate response, the operation feeling is good and the operation is easy. There is no risk of and, c. Must have excellent vibration resistance.

[0021] This switch has a simple structure and is easy to assemble without sacrificing the advantages of the conventional example. can be configured.

[Brief explanation of drawings]

[Fig. 1] Cross-sectional view of essential parts in one embodiment of the present invention

[Figure 2] Exploded perspective view of the above main parts

[Fig. 3] Plan view of the above embodiment.

[Figure 4] BB' sectional view in Figure 3 above

[Fig. 5] Plan view of conventional switch structure

[Figure 6] A-A' sectional view in Figure 5 above

[Explanation of symbols]

1... Board, 1a, 1b, 1c... Positioning protrusion, 1d, 1
e...Stopper, 2...Light source bulb, 3A, 3B, 3C...Fixed terminal, 3a...Hook-shaped portion, 3c...Rivet, 3d...Spring piece, 4...Operation lever, 5...Pivot pin, 6...Ball, 7
...Spring, 8...Operation lever, 8a...Notch, 9A, 9
B, 9C...Fixed terminal, 9a...Spring piece, 9c...Semispherical concave fixed contact, 10...Rivet, 11...Movable contact piece, 11a
...Movable contact, 11b...Buried part.

Claims (1)

[Scope of utility model registration request] [Claim 1] Press-fitted to the terminal of a light source bulb of a vehicle lamp,
A fixed terminal integrally connected to the conductive spring piece, a manual operation lever made of an electrically insulating material supported rotatably opposite to the fixed terminal, and a manual operation lever attached to the manual operation lever and connected to the A switch for a vehicle lamp comprising a movable terminal that contacts and conducts with a fixed terminal, and a fixed terminal that is installed adjacent to the fixed terminal along a rotation locus arc of the movable terminal, wherein the fixed terminal A concave hemispherical fixed contact is formed in the hemispherical contact portion, and a space is formed by cutting out the portion where the manual operation lever faces the hemispherical contact portion, and a space is formed separately from the above with an L-shaped cross section. A movable contact piece made of a leaf spring is formed, and a movable contact protrudes semispherically from one side of the L-shape, and one piece of the L-shape is inserted into the cutout space. The other side is buried and fixed in the manual operation lever, and the spring elasticity of the movable contact piece made of this plate spring presses the movable contact to the fixed contact, and the movable contact piece made of the plate spring is inserted into the notch. 1. A switch structure for a vehicle lamp, characterized in that the switch structure is such that the movable contact can be displaced in a direction away from the fixed contact by being bent within the space.