JPS6220116Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lever switch for an automobile, which is provided at the bottom of the steering wheel and is mainly used to operate a direction indicator lamp.

As is well known, lever switches for automobiles are designed to turn the lever switch on and off and operate the right or left direction indicator lamp by swinging the lever. However, a moderation mechanism section for holding the switching position of the switch and a contact mechanism section consisting of a movable contact piece operated by the operation of the lever and a fixed contact piece that contacts the movable contact piece were constructed separately. As a result, the structure of the lever switch is complicated, and therefore the number of parts is large, the dimensions are large, assembly is difficult, manufacturing costs are relatively high, and the operation of the switch is uncertain. Ta.

The present invention is an attempt to eliminate the above-mentioned drawbacks, and has a structure in which a laminated fixed contact section is composed of a plurality of plate-shaped fixed contact pieces and one insulating plate, and this laminated fixed contact section itself has a moderation mechanism. By doing so,
The moderation mechanism and contact mechanism of the lever switch are integrated to simplify the overall configuration.
To provide a lever switch that uses fewer parts, is small, easy to assemble, is inexpensive, and ensures reliable switch operation.

Hereinafter, the present invention will be specifically explained with reference to the illustrated embodiments.

As shown in Figure 1, this lever switch is
A laminated fixed contact portion 8 is provided at a fixed position on the switch body 1, and a movable contact member is provided at a position opposite to the laminated fixed contact portion 8 of the rotating member 3, which rotates with respect to the switch body 1 by the swinging operation of the lever 5. 6, and by swinging the lever, the movable contact member 6 is moved along the opposing edge of the laminated fixed contact portion 8 to connect the movable contact member and the plurality of fixed contact pieces in the laminated fixed contact portion. The vehicle's left and right direction indicator lamps are switched on and off to activate or deactivate them.

The switch body 1 passes through the handle shaft 2 and is fixed at a predetermined position on the handle shaft 2. The rotating member 3 has a pin 4 attached to the switch body 1.
It is installed by In addition, this rotating member 3 has a hole 3e for penetrating the handle shaft whose diameter is sufficiently larger than that of the handle shaft 2 in the center thereof, and is mounted near the pin 4 of the rotating member 3. By swinging the lever 5, it can be rotated within a certain angular range around the pin 4, parallel to the top surface of the switch body 1. Protrusions 3b and 3a, which are parallel to the rotating surface of the rotating member 3 and project toward the laminated fixed contact section 8, are provided above and below at positions facing the fixed contact section 8 with a certain gap 3c in between. There is. The upper projection 3b is approximately U-shaped,
A guide groove 3d opening toward the laminated fixed contact portion 8 is formed in the center thereof. The movable contact member 6 is composed of a conductive roller 6 having a neck portion 6a. The roller 6 is mounted on the lower protrusion 3 so that its axis is perpendicular to the rotating surface of the rotating member 3.
The neck part 6a is fitted into the guide groove 3d of the upper protrusion 3b, and the stacked fixed contact part 8 is placed on the upper surface of the upper protrusion 3b by the spring 7 fitted into the gap 3c. It is configured to be pressed so as to be freely retractable and rotatable within the gap 3c in the direction.
The roller 6 is positioned exactly on the extension of the line connecting the pin 4 and the center of the handle shaft 2 when the lever 5 is in the neutral position.
As the rotating member 3 swings, the song moves left and right with this straight line as a boundary.

The laminated fixed contact portion 8 is integrated by stacking a fixed contact piece 9 on the upper surface of an insulating plate 12 and fixed contact pieces 10 and 11 on the lower surface of the insulating plate 12 with a certain gap 14 between them without contacting each other. A pair of switches are installed at the edge of the switch body 1 so that the opposite edge of the roller 6 is always in contact with the circumferential surface of the roller 6 which sings while being urged outward of the rotating member 3. It is fixed with screws 13.

Each corrugated side edge of the fixed contact piece 9 and the insulating plate 12 is
The troughs 10a, 11a of the fixed contact pieces 10, 11 are superimposed on the troughs 12a, 12c on both sides of the insulating plate 12, and Insulating plate 12
The center trough 12b and the gap 14 between the fixed contact pieces 10 and 11 are made to substantially match. Also,
In the troughs 12a, 12c at both ends of the insulating plate 12, the fixed contact pieces 9, 10, 11 are slightly protruded from the insulating plate 12 by approximately the same amount toward the roller 6 side. The movable contact pieces 9, 10, and 11 are provided with terminal portions 23, 24, and 25, respectively, and these terminals are connected to a known electric circuit (not shown) to connect the movable contact pieces 9 and the movable contact pieces 10. 11 is connected via the roller 6, either the left or right direction indicator lamp flashes.

Furthermore, in this embodiment, the lever switch and the hazard switch are integrated. Reference numeral 15 denotes a hazard switch main body, and a space 16 formed between the laminated fixed contact portion 8 and the switch main body 1 is provided in a direction perpendicular to the longitudinal direction of the fixed contact piece, that is, the center of the pin 4 and the handle axis. It is attached to the switch main body 1 so that it can be moved in and out in the direction of the connecting line. The rotating member 3 of the hazard switch main body 15
On the opposite side edge to the protrusion 3a, two peaks 15a, 15b and three valleys 15c, 15d, 1
5e is formed into a wave shape, and regardless of the operating position of the lever 5, the projection 3a fits into any of the valleys 15c, 15d, and 15e when the hazard switch is turned on, that is, when the hazard switch main body 15 is pushed in. I try to do that. In addition, the hazard switch body 15 has a pair of through holes 15f on both sides with respect to the direction in which the hazard switch body enters and exits.
In addition, two of the fixed contact pieces 10 and 11 are provided so as to be located below the fixed contact pieces 10 and 11 when the hazard switch is on, and the movable contact pieces 17 and 18 are press-fitted into the through holes, and the elasticity of the movable contact pieces 17 and 18 themselves It maintains its position. Moreover, this movable contact piece 17,
18 protrude slightly from the upper and lower surfaces of the hazard switch main body 15, and when pressed from the outside, they retract into the through hole, and when the pressure from the outside is released, the movable contact pieces themselves are elastic. , protruding from both surfaces. Further, at the bottom of the space 16, a plate-shaped fixed contact piece 19 is fixed to the switch body 1 at a position opposite to the fixed contact pieces 10 and 11. This fixed contact piece 19 is connected to the terminal portion 26
and is connected to the electric circuit, when the fixed contact piece 19 is connected to the fixed contact pieces 10 and 11 via the movable contact pieces 17 and 18,
Both the left and right direction indicator lamps flash at the same time. Further, the hazard switch main body 15 is provided with depressions 20 and 21, which are engaged with elastic protrusions 22 provided on the switch main body 1 for moderation, respectively, when the hazard switch is turned on and off. Note that 15G is a hazard knob.

Next, the operation of the lever switch configured as described above will be explained.

In FIG. 1, when the lever 5 is in the neutral position, the roller 6 moves between the fixed contact piece 9 in the laminated fixed contact part 8 and the central troughs 9b and 1 of the insulating plate 12.
2b and the fixed contact pieces 10, 11, so that the peripheral surface of the roller 6 contacts only the insulating plate 12 and the fixed contact piece 9, and the other fixed contact pieces 10, 1
1, and neither the left nor the right direction indicator lamps operate. Next, when the lever 5 is swung in either the left or right direction, the lever 5 is supported by the protrusions 3a and 3b of the rotating member 3, which rotates around the pin 4.
The roller 6 guided and urged by the spring 7 to the laminated fixed contact part 8 moves while rotating along the corrugated side edge of the laminated fixed contact part 8, and moves to either the left or right trough 9a, 10a or 9c and 11a and are held in that position. Further, at this time, the peripheral surface of the roller 6 simultaneously contacts only the side edge of either the fixed contact pieces 9 and 10 or the fixed contact pieces 9 and 11 that protrude from the insulating plate 12 in the direction of the roller 6. As a result, the fixed contact piece 9 and the fixed contact piece 10 or 11 are connected, the electric circuit is energized, and either the left or right direction indicator lamp blinks. Note that since the roller 6 moves while rotating, there is less wear on the contacts and less resistance when operating the lever.

Next, the operation of the hazard switch will be explained.

Normally, the hazard switch main body 15 is pulled out from the space 16, as shown in FIG. , the switch is turned off. hazard knob 1
5G into the space 16, the upper and lower surfaces of the movable contact piece 17, as shown in FIG.
The lower surface of the fixed contact piece 10 and the upper surface of the fixed contact piece 19 are simultaneously contacted, and the upper and lower surfaces of the movable contact piece 18 are simultaneously contacted with the lower surface of the fixed contact piece 11 and the upper surface of the fixed contact piece 19, so that the electricity The circuit energizes and activates the left and right direction indicator lamps simultaneously.
In this state, any one of the valleys 15c, 15d, and 15e on the side edge of the hazard switch main body 15
The protrusion 3a of the rotating member 3 is fitted into the protrusion 3a. Further, the elastic protrusion 22 provided on the switch body 1 engages with the recess 20 of the hazard switch body 15, and the hazard switch body is moderated. Next, when the lever 5 is swung, the protrusion 3a of the rotating member presses one of the peaks 15a and 15b of the hazard switch main body 15.
The hazard switch body 15, whose degree of freedom is restricted in one direction by the switch body 1, is projected outward from the switch body 1, and the elastic protrusion 22 and the depression 21 are engaged, and the hazard switch is turned off. That is, by swinging the lever 5, the hazard switch is automatically turned off, which is convenient because the burden on the driver is psychologically reduced. Of course, the hazard switch can be turned off by pulling out the hazard knob 15G or by linking the handle operation and lever operation (not shown).

In the above embodiment, the fixed contact piece 19 was used exclusively for the hazard switch, but the fixed contact piece 9 was used instead of the fixed contact piece 19, and the fixed contact piece 9 and the fixed contact pieces 10 and 11 were connected at the same time. It is also possible to have a structure in which

In this embodiment, the insulating plate 12 and the fixed contact piece 9
The wavy side edges of each of the fixed contact pieces 10 and 11 were made to substantially coincide with each other, and each of the fixed contact pieces 10 and 11 also had one trough. It is not necessary, but it is sufficient that one side edge of the laminated fixed contact portion is formed in a corrugated shape as a whole. For example, only the insulating plate may have two peaks and three valleys, and the side edges of the plate-shaped fixed contact pieces 9, 10, 11 may protrude from the valleys on both sides of the insulating plate.

As specifically explained in the above-mentioned embodiments, the present invention provides a laminated fixed contact portion and a movable contact member, which are formed by laminating and integrating one insulating plate and a plurality of fixed contact pieces, with a contact function and a moderation function. By combining these functions, the configuration of the lever switch can be simplified, and the lever switch can be manufactured with a small number of parts, small size, and at low cost, and the lever switch can operate reliably. have
In addition, since the fixed contact piece and the insulating plate of this lever switch are each formed into a plate shape, they can be manufactured by press working or die cutting, and the fixed contact piece can have a contact part and a terminal part integrally formed. There is no need to connect the contact part and the terminal part. In addition, since the fixed contact part is configured with a laminated structure of a plate-shaped fixed contact piece and an insulating plate, the fixed contact part is strong and has a large thickness, so that the movable contact member can be held in a stable position. , it moves along the corrugated side edges of the laminated fixed contact portion and is held in its troughs. Furthermore, as described in detail in the embodiments, the lever switch according to the present invention allows the hazard switch to be integrated with the lever switch very easily, and has a size that is almost the same as that of the lever switch alone. can do.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional plan view showing the overall structure of the lever switch according to the present invention, Fig. 2 is an exploded perspective view of the main part of the lever switch in Fig. 1, and Fig. 3 is taken along line A-A in Fig. 1. 4 is a sectional view showing a state in which the hazard switch is activated in FIG. 3. 1...Switch body, 2...Handle shaft, 3...
...Rotating member, 3a, 3b...Protrusion, 3c, 14...
... Gap, 3d... Guide groove, 3e... Hole, 4... Pin, 5... Lever, 6... Roller, 6a... Neck, 7... Spring, 8... Laminated fixed contact part, 9, 1
0, 11, 19... Fixed contact piece, 12... Insulating plate, 13... Screw, 15... Hazard switch body, 9a, 9b, 9c, 10a, 11a, 12
a, 12b, 12c, 15c, 15d, 15e...
...Tanibe, 9d, 9e, 12d, 12e, 15a,
15b... Mountain part, 15f... Through hole, 15G...
Hazard knob, 16... Space, 17, 18... Movable contact piece, 20, 21... Recess, 22... Elastic protrusion, 23, 24, 25, 26... Terminal portion.

Claims (1)

[Claim for Utility Model Registration] By switching the swinging operation of the lever, the connection of one movable contact member to the plurality of fixed contact pieces in the contact mechanism section is switched, and the left and right direction indicator lamps are activated or deactivated, and the lever In an automotive lever switch equipped with a moderation mechanism that maintains a switching position, a first plate-shaped fixed contact piece is disposed on one side of an insulating plate, and second and third plate-shaped fixed contact pieces are arranged on the other side in a plane and not in contact with each other. A laminated fixed contact part formed by laminating and integrating plate-shaped fixed contact pieces and fixing them in a fixed position on a switch body, and forming one side edge as a whole into a corrugated shape having at least two peaks and three valleys. and a rotary member that rotates with respect to the switch body in conjunction with the lever is provided at a position opposite to the laminated fixed contact portion, and when moving with the rotation of the rotary member, the laminated fixed contact portion When the contact member is urged in the direction of the laminated fixed contact portion so as to be able to freely protrude and retract from the rotating member so as to be always in pressure contact with the waveform side edge portion of the contact portion, and is fitted into the central trough portion of the waveform side edge portion, The movable contact member is not in contact with at least one of the first and second fixed contact pieces and at least one of the first and third fixed contact pieces; A movable contact member is provided that comes into contact with either the side edge of the first fixed contact piece or the side edge of the second or third fixed contact piece when fitting into any one of the valleys. A lever switch that is characterized by: