JP2964441B2 - Composite switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite switch device configured to switch a plurality of circuits by operating a single operation lever, and is particularly applied to a direction indication of an automobile and a high beam / low beam switching of a headlight. It is suitable.

[0002]

2. Description of the Related Art As is well known, a vehicle is provided with a combined switch device for switching headlight beams and performing a passing operation near a steering wheel. FIG.
FIGS. 0 to 13 show an example of a conventional composite switch device 1, which includes a beam switch circuit 3 for switching a headlight between a high beam and a low beam, a momentary switch circuit 2 for performing a passing operation, and the like.
The momentary switch circuit 2 includes fixed terminals 4, 5 and movable terminals 6, 7, and the like. The fixed terminals 4 and 5
The movable terminal 6 is fixed to a base (not shown).
Reference numeral 7 denotes a plate spring formed in a U-shape in a plane, and is formed so that a tip portion, that is, a contact portion is elastically directed downward with the fixed position 8 as a fulcrum. In addition, movable terminals 6 and 7
The operating member 1 provided on the driving member 9 is inserted into the driving member 9 as shown in FIG.
4 when pressed down through the fixed terminals 4 and 5
13, when it is free, it is pulled up by the spring force of a spring 15 wound around a driving member 9 described later and returns to a non-contact state as shown in FIG. 13, that is, the momentary switch circuit 2 is turned off. It is configured to be.

On the other hand, the beam switch circuit 3 includes a common terminal 10, a movable contact piece 11, an inverter 12, a fixed terminal 13, and a fixed terminal 4a integrally formed with the fixed terminal 4. Although not shown, a spring or a steel ball is interposed between the movable contact piece 11 and the inverter 12, and the inverter 12 is rotated by a support shaft (not shown) inserted through the insertion hole 12 a. It is provided movably. When the operating portion 14 is pressed downward against the spring 15 wound around the operating portion 14, the lever 16 is moved downward by the driving member 9 against the tensile force of the tension spring 21 provided at the other end. , One end of which enters one of the two fitting portions 12b and 12c formed on the upper part of the inverter 12 to rotate the entire inverter 12. That is,
In the state shown in FIG. 10, the inverter 12 tilts to the left, and the movable contact piece 1
1 is connected to the fixed terminal 4a side so as to be able to conduct electricity.

When the operating portion 14 is pushed in this state, the tip of the lever rod 16 enters the fitting portion 12c, and the entire inverter 12 rotates clockwise, and pushes the movable contact piece 11 at the bottom to fix the fixed terminal. 13 side. Looking at the connection relationship at this time with reference to FIG. 11, the beam switch circuit 3 is connected so as to be able to conduct electricity in the opposite direction to the case shown in the figure. At this time, the movable contact piece 11 elastically contacts the fixed terminal 13 by the action of a spring and a steel ball (not shown), and this contact state is maintained.

[0005]

In the composite switch device 1 having the above configuration, the common terminal 10 of the beam switch circuit 3 and the movable terminals 6 and 7 of the momentary switch circuit 2 are connected by the lead wire 17. , This connection configuration is complicated. That is, the common terminal 10 and the lead wire 17 are connected by soldering, and the other end of the lead wire 17 is connected to the crimp terminal 18 by caulking.
Is fixed to a fixing portion 20 (see FIGS. 12 and 13) provided on a part of the case by a screw 19. The fixation of the crimp terminal 18 to the fixing portion 20 also serves to fix the movable terminals 6 and 7.

In this configuration, the wiring work of the lead wire 17 which is a separate member is required, and the lead wire 17 is connected to the movable parts, for example, the movable terminals 6 and 7 and the fixed terminals 4 and 5 during the wiring work. You have to be creative so that you don't get in between. In addition, excessive or insufficient tightening of the screw 19 or loosening due to vibration of the vehicle in use affects the contact pressure between the movable terminals 6 and 7 and the fixed terminals 4 and 5, thereby reducing reliability. In addition, there are various problems such as not only the number of components such as the lead wire 17, the crimp terminal 18, the screw 19, but also the number of work steps such as soldering, caulking and screw tightening are increased.

Further, there are various problems in operability as described below. That is, the movable terminals 6, 7 are brought into contact with the fixed terminals 4, 5 by pushing the operating portion 14 downward against the spring 15 wound around the operating portion 14, and the movable terminals 6, 7 The leaf spring itself is bent downward, and also has an action of pulling the operation unit 14 downward. However, since the center where the pressing force of the operation unit 14 acts and the center of the leaf spring load of the movable terminals 6 and 7 are displaced, the operation unit 14 may be pulled obliquely and the operability may be deteriorated. An object of the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a composite switch device which has a small number of parts and a small number of man-hours for assembling, and is excellent in operability.

[0008]

In order to achieve the above object, a composite switch device according to the present invention relates to a first switch circuit and a second switch circuit provided in a body, which are associated with each other by operating an operation lever. A lever that drives an inverter that switches the first switch circuit, and a leaf-spring-like movable terminal that constitutes the second switch circuit. In a composite switch device having a driving member for switching operation of a movable terminal and an operating portion of the operating lever for pressing and biasing the lever and the driving member, a common terminal forming the inverter is extended in a body. And a movable terminal integrally provided with a pressure contact portion for press-contacting one end of the bus bar and the movable terminal, wherein the common terminal and the movable terminal are provided. The is characterized in that the electrically connected within the body. The composite switch according to the present invention may be characterized in that the operating portion of the operating lever is provided on the center of the leaf spring load of the movable terminal and on the axis of the lever.

[0009]

In the composite switch device, a common terminal of a first switch circuit (beam switch circuit) is extended in a body to form a bus bar, and a second switch circuit (momentary switch circuit) is provided at one end of the bus bar. A pressure contact portion integrally formed with the movable terminal to be formed is pressed into contact, and the common terminal and the movable terminal are electrically connected. This eliminates the need to connect the common terminal and the movable terminal with a lead wire or the like,
The number of parts and work steps can be reduced. Also,
The driving member for operating the lever and the movable terminal is pushed by the operating portion for pressing and biasing the driving member at the center of the leaf spring load of the movable terminal. The operation unit is not tilted, so that the operability of the operation unit is improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a composite switch device according to the present invention will be described below with reference to FIGS. In the description of the embodiments, members having the same function are denoted by the same reference numerals in order to clarify the difference from the conventional example. First, the basic configuration and operation of the composite switch device 31 (hereinafter simply referred to as a switch device) will be described with reference to FIGS. A bus bar 10 a extending in the directions of the movable terminals 6 and 7 is connected to the common terminal 10 formed with the inverter 12 as a fulcrum. In the conventional example, the movable terminals 6 and 7 are formed in a U-shape in a plane, but in the present embodiment, a pressure contact portion 33 is provided at a substantially central portion of the connecting portion 32 of the movable terminals 6 and 7. 7, and the pressure contact portion 33 is pressed against the end of the bus bar 10a so as to be able to conduct electricity. The connecting portion 33 has two screw holes 34a, 3
4b is open (see FIG. 2).

On the other hand, the driving member 35 is provided with an operating portion 14 substantially at the center of the upper portion, and pushes the lever 16 at the center of the lower portion of the driving member 35.
That is, in the switch device 31 of the present embodiment, the common terminal 10 attached to the first switch circuit 3 and the movable terminal constituting the second switch circuit 2 are replaced by the bus bar 10a instead of the lead wire 17 described in the conventional example. 6 and 7 are connected. Moreover, the connection between the bus bar 10a and the movable terminals 6, 7 is performed by pressing the pressure contact portion 33 provided integrally with the movable terminals 6, 7 to the bus bar 10a. The press contact between the bus bar 10a and the press contact portion 33 is performed by the movable terminals 6 and 7.
Is fixed to the case, in other words, the screw hole 3
It is performed by screwing and fixing to the case using 4a and 34b. Since the screw fixing is one step of assembling the switch device 31, the common terminal 10 and the movable terminals 6, 7 are connected together with the assembly of the switch device 31.

Therefore, in the switch device 31 of the present embodiment, the lead wire 17 and the crimp terminal 18 shown in the conventional example are unnecessary, and the soldering, crimping, and wiring work such as wiring are also unnecessary. In the assembled state, the movable terminals 6 and 7 are screwed and fixed at two places so that they do not rotate.
Further, the contact between the movable terminals 6 and 7 and the fixed terminals 4 and 5 is performed favorably and stably, and the reliability of the switch device 31 is improved.

The drive member 35 has advantages such as a simple shape and a simplified mold shape. The operating portion 14 pushes the lever 16 at a position almost directly above the lever 16, and is provided at the center of the leaf spring load of the movable terminals 6, 7 to push the terminals 6, 7. Also, there is no inconvenience such as the operation unit 14 being pulled obliquely due to the pull-down load of the movable terminals 6 and 7, and the operability is improved.

Next, the configuration of the switch device 31 will be specifically described with reference to FIGS. FIG. 3 is an external view of the switch device 31. The switch configuration shown in FIGS. 1 and 2 is provided at a position indicated by a dotted line in a body 41 molded of a synthetic resin. The insertion hole 42 is for inserting a steering shaft, and the operation lever 43 is for switching between the beam switch circuit 3 and the momentary switch circuit 2.

FIG. 4 is a sectional view taken along line AA of FIG. 3, and FIG.
6 is a rear view of FIG. 3.
4 to 6, the beam switch circuit 3 and the momentary switch circuit 2 are provided on the back side of the body 41. As shown in FIG. 4 and FIG.
The operation unit 14 is provided so as to be movable up and down in connection with the operation unit 14, and a driving member 35 is provided below the operation unit 14. In addition,
The operation unit 14 is provided in a guide 44 formed on the body 41, and the periphery thereof is filled with grease so that the operation unit 14 can be smoothly moved up and down.

In the specific example, the drive member 35 is formed with two divided frames 35a and 35b.
Are inserted through the frames 35a and 35b. And the frame 35
The lever 16 is positioned in a recess formed between the points a and b. Therefore, by operating the operation lever 43, the operation section 14 moves up and down, and in response to this, the drive member 35 moves up and down, and the switching operation between the beam switch circuit 3 and the momentary switch circuit 2 is performed. Since FIG. 6 is a rear view, the busbar 1
0a and the like are provided below the pressure contact portion 33.

Next, referring to FIG. 7 to FIG.
The configuration of “a” and the inverter 12 will be described. 7 is an enlarged sectional view of a main part of a body formed in a lid shape covering the switch circuit unit of FIG. 6, FIG. 8 is a sectional view taken along line CC of FIG. 7, and FIG. 9 is a sectional view of FIG.
FIG. 4 is a sectional view taken along line D. As shown in FIGS. 7 and 8, the bus bar 10a is laid in accordance with the press contact portion 33 of the body 41, and one end is fixed to the body 41 with a stud 46 or the like. The pressure contact portion 33 is pressed in the vicinity of the caulking position by the stud 46. An inverter 12 is provided on the opposite side of the crimping position of the bus bar 10a, that is, on the right side in FIG.

The inverter 12 is rotatably provided by pins 49 on two fixed members 47 and 48 formed integrally with the body 41. The pin 49 is inserted through the insertion hole 12a shown in FIG. Then, a hole is formed from the center of the inverter 12 toward the lower side, and a spring 51 and a steel ball 52 are buried therein, and the steel ball 52 is urged downward in the figure.

The center of the movable contact piece 11 is formed in a concave portion 11a, and terminals 11b and 11c are provided below both ends. A projection 10b is provided at the center of the common terminal 10.
Is formed, the movable contact piece 11 can swing about a protrusion 10b as a fulcrum like a seesaw. Further, the fixed contacts 13 and 4a are formed of studs, and the movable contact piece 11 is turned on by swinging of the movable contact piece 11, that is, is switched to the on state. In the state shown in FIG. 9, since the inverter 12 is lowered to the right, the steel ball 52 is located to the right of the protrusion 10 b and the fixed contact 4 a and the movable contact piece 11 come into contact.
When the lever 16 is urged downward in this state, the lever 16
Is pushed into the fitting portion 12c to rotate the entire inverter 12 clockwise. As a result, the steel ball 52 moves to the left of the protrusion 10b while sliding on the concave portion 11a, and the fixed contact 13 and the contact 11b of the movable contact piece 11 come into contact. At this time, the position of the steel ball 52 is regulated in the concave portion 11a,
a, the lever 16 does not jump out of the fitting portion 12b.
When it is pushed inside, it returns to the state shown in the figure.

As described above, the switch device 31 shown in this embodiment does not require lead wires, crimp terminals, and the like used in the conventional switch device, and does not require wiring work. And the number of work steps can be reduced. Further, a lever bar 16 for urging the inverter 12 to rotate is used.
Is a lower portion of the drive member 35 and a position directly below the operation unit 14,
That is, the movable terminal 6 is pushed on the axis of the operation unit 14 and
7 is pushed on the leaf spring load center, so that the operation unit 1
There is no inconvenience such as inclination of 4 and the operability is improved.

[0021]

As described above, in the composite switch device according to the present invention, the bus terminal is formed by extending the common terminal of the first switch circuit, and the second terminal is connected to one end of the bus bar.
Pressure contact of the movable terminal that constitutes the switch circuit of
Since they are connected so as to be able to conduct electricity, there is no need to connect the first switch circuit and the second switch circuit with a lead wire, so that the number of parts such as lead wires and crimp terminals can be reduced, and wiring Work is not required, and significant cost reduction can be achieved.

Further, a driving member interlocked with the operating section moves the lever bar, and rotates the inverter by the movement of the lever bar.
The switch is switched by driving the movable contact piece that constitutes the first switch, and the switch is switched by pressing the movable terminal to make contact with the fixed terminal. These portions are pushed on the axis of the shaft and on the center of the leaf spring load of the driving member, so that they are not tilted by the reaction force of these portions, so that the operability is favorably maintained. You. The reliability of the switch device can be improved in combination with the need for the lead wire and the like.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing a basic configuration and operation of a composite switch device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing a connection between a bus bar and a movable terminal.

FIG. 3 is a plan view showing the appearance of the composite switch device.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIG. 6 is a rear view showing the appearance of the composite switch device.

FIG. 7 is an enlarged plan view of a main part of the composite switch device.

FIG. 8 is a sectional view taken along line CC of FIG. 7;

FIG. 9 is a sectional view taken along line DD of FIG. 7;

FIG. 10 is a perspective view of a main part showing a configuration of a conventional composite switch device.

FIG. 11 is a circuit diagram of a switch circuit.

12 is a cross-sectional view illustrating a switching operation of the switch circuit in FIG.

13 is a cross-sectional view illustrating a switching operation of the switch circuit in FIG.

[Explanation of symbols]

 Reference Signs List 2 Momentary switch circuit 3 Beam switch circuit 4, 4a, 5, 13 Fixed terminal 6, 7 Movable terminal 10 Common terminal 10a Bus bar 11 Movable contact piece 12 Inverter 14 Operating part 15 Spring 16 Lever stick 31 Composite switch device 32 Connecting part 33 Pressing part 35 Drive member 41 Body 43 Operating lever 46 Tack 47, 48 Fixing member 49 Pin 51 Spring 52 Steel ball

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01H 3/18 B60R 16/02

Claims (2)

(57) [Claims] A first switch circuit and a second switch circuit provided in a body, which are configured to perform a switching operation in relation to each other by operating an operation lever; A lever for driving the inverter to be switched, a driving member for driving a leaf spring-like movable terminal constituting the second switch circuit and switching the movable terminal, and pushing the lever and the driving member A composite switch device having an operating portion of the operating lever to be urged, comprising: a bus bar formed by extending a common terminal forming the inverter in a body; and a press contact pressing one end of the bus bar and the movable terminal. A composite switch comprising the movable terminal integrally provided with a portion, wherein the common terminal and the movable terminal are electrically connected in the body. 2. The composite switch according to claim 1, wherein the operating portion of the operating lever is provided on the center of the leaf spring load of the movable terminal and on the axis of the lever.