JP3680382B2 - Switch lever - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switch lever of a vehicle combination switch including a lever-operated light control switch unit, a wiper control switch unit, and the like mounted on a steering column of an automobile.
[0002]
[Prior art]
The prior art will be described with reference to FIGS.
[0003]
FIG. 3 is a side sectional view showing a configuration of a conventional switch lever, and FIG. 4 is an exploded perspective view.
[0004]
The switch lever has a function as an operation lever for operating one or two of a turn signal switch of a vehicle combination switch, a wiper control switch, or a dimmer / passing switch, and a light control switch at the tip. It is built in and opens and closes the switch by turning the operation knob.
[0005]
In the figure, reference numeral 1 denotes a cylindrical lever body (not shown) having a base portion (not shown) so that each switch of the vehicle combination switch can be operated. A slit 2A provided in the lower portion of the cylindrical shaft 2 is inserted and fitted into the hole 1C having the portion 1B from the opening 1D side at the tip of the lever body 1 so as to correspond to the rotation-preventing convex portion 1B. By inserting the ring 3 into the groove 2B provided at the lower end of the shaft 2 from the side opening 1E of the lever body 1, the shaft 2 is prevented from coming off upward.
[0006]
A terminal plate 5 having a plurality of fixed contacts 4 arranged on the upper surface is located in the middle portion of the shaft 2 in a hole portion 5B having a rotation-preventing convex portion 5A provided in the center portion thereof from the tip of the shaft 2. Up to the restricting portion 2C, the anti-rotation convex portion 5A is inserted and fitted to the dividing groove 2D.
[0007]
Further, a central hole 7A of the rotor 7 holding the movable contact 6 elastically contactable with the fixed contact 4 of the terminal board 5 from the upper side is passed through and held rotatably, and the upper surface on the outer peripheral side from the central hole 7A. A moderation spring 8 and a ball 9 are disposed in the holes 7B1 and 7B2 provided in the hole 7B1 and a moderation holder 10 having a moderation mountain portion 10A on the lower surface corresponding to the moderation spring 8 and the ball 9 on the upper portion thereof. A split groove 2D is inserted from the tip of the shaft 2 into the hole portion 10C having the rotation prevention convex portion 10B provided in the center portion so as to correspond to the rotation prevention projection portion 10B, thereby forming a moderation lock portion. An elastic claw 10D protruding inside the hole 10C on the lower surface of the moderation holding body 10 is inserted and fixed in the groove 2E provided at the tip of the moderation holding body 10 to prevent the moderation holding body 10 from coming off upward.
[0008]
A groove 7C extending in the axial direction and a step 7D below the groove 7C are provided on the outer periphery of the rotor 7, and formed on the inner periphery of the opening below the corresponding cylindrical operation knob 11. The elastic leg portion 11 </ b> A and the claw portion 11 </ b> B at the tip thereof are inserted and engaged, and the rotor 7 can be rotated by rotating the operation knob 11, and the operation knob 11 is prevented from coming off upward.
[0009]
The outer periphery of the opening at the lower end of the operation knob 11 covers the outer periphery of the opening at the tip of the lever body 1.
[0010]
Further, an elastic claw portion 12B extending downward from the outer peripheral portion of the circular lid 12 is inserted and fitted into the step portion 11C on the inner surface of the opening above the operation knob 11, and the lid 12 The protrusion 10E on the upper surface of the moderation holder 10 is inserted and fitted into the hole 12D of the cylindrical protrusion 12C provided at the center of the lower surface.
[0011]
The plurality of lead wires 13 connected to the fixed contact 4 of the terminal board 5 are led from the inner periphery of the lever body 1 to the switch body and are electrically connected.
[0012]
Further, the side opening 1E on the outer periphery of the lever body 1 is closed by the lid 14 after the switch lever is assembled.
[0013]
Next, the operation by the turning operation of the operation knob of the switch lever will be described.
[0014]
When the operation knob 11 is turned, the rotor 7 rotates in conjunction with it, and the fixed contact 4 and the movable contact 6 are brought into and out of contact with the moderation by the moderation lock portion between the rotor 7 and the moderation holder 10, and the fixed contact 4 is used to turn on or off the headlamps on the vehicle side from the lead wire 13 connected to 4.
[0015]
[Problems to be solved by the invention]
However, in the above-described conventional switch lever, the molding die of the operation knob 11 is structured to be divided above and below the operation knob 11 in order to form an elastic claw portion 11B for preventing the operation knob 11 from coming off. Naturally, a hole is formed in the upper part of the operation knob 11.
[0016]
Further, since the lid 12 is separately required to close the hole, the cost and the assembly man-hour of the mold and parts of the lid 12 are increased, and the operation knob 11 and the lid 12 are inserted after the lid 12 is inserted. The boundary line was conspicuous, and the appearance was poor.
[0017]
It is an object of the present invention to provide such a switch lever with an excellent appearance while reducing the number of components and improving the assembling workability.
[0018]
[Means for Solving the Problems]
In the switch lever of the present invention, a cylindrical lever body, a columnar shaft fixed to the inside thereof, a terminal plate fixed to an intermediate portion of the shaft and having a plurality of fixed contacts on the upper surface, and an upper portion thereof rotatably held retained on the lower surface of the bullet contacting the movable contact to the fixed contact, the detent holds having a rotor which holds the spring and the ball detent on the upper surface, a click teeth portion on the lower surface is fixed to the upper end of the shaft to and body, the lever body upper cormorants lower covering an opening is made from the operation knob of the cap shape having an opening, the elastic claw provided protrusions extending in the axial direction below the convex portion on the outer periphery of the rotor Accordingly, a groove is provided in the inner periphery of the opening below the operation knob which is inserted and engaged correspondingly, and a square hole is provided in the lower peripheral wall .
[0019]
Therefore, according to the present invention, it is possible to improve the assembling workability by reducing the number of components, and to obtain a switch lever having an excellent appearance.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, there is provided a terminal plate having a cylindrical lever body, a columnar shaft fixed to the inside thereof, and a plurality of fixed contacts on an upper surface fixed to an intermediate portion of the shaft. When, the rotatably held bullets against the movable contact to the fixed contact at the top and held on the lower surface, a rotor holding the spring and the ball detent on the top surface, detent ridges on the lower surface is fixed to the upper end of the shaft a detent carrier having made the lever body upper cap-shaped operating knob opening covering cormorants lower is the opening of the outer periphery of the rotor with protrusions extending in the axial direction below the convex portion the elastic claws provided, which rectangular hole in the inner circumference groove portion and a lower peripheral wall of the opening of the lower of the operation knob to insert engagement in response to the this was a switch lever provided, the outer periphery of the rotor Has a convex part extending in the axial direction and the convex part An elastic claw is provided on the side, and is inserted into and engaged with a groove formed in the inner periphery of the opening below the operation knob in a cap shape corresponding to this, and a square hole provided in the lower peripheral wall. The rotor can be rotated by dynamic operation , and the lid can be prevented from coming off upward, so no lid is required, and therefore the number of parts and man-hours can be reduced, and a switch lever with a good appearance can be realized. It has the action.
[0021]
The invention according to claim 2 is the switch lever according to claim 1, wherein the fitting portion between the elastic claw of the rotor and the square hole of the operation knob is covered by the outer periphery of the upper end of the lever body. By covering the fitting portion, it is possible not only to prevent intrusion of foreign matter from the outside, but also to realize a switch lever having an improved appearance.
[0022]
According to a third aspect of the present invention, the terminal plate and the rotor are temporarily fixed by the elastic claws provided on the terminal plate, and the moderation holding body and the rotor are temporarily fixed by the elastic claws provided on the moderation holding body. The switch lever according to Item 1 or 2 has an effect that the temporarily fixed switch unit can be stored in a work-in-process state, and can be attached to the shaft with one touch during assembly.
[0023]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side sectional view of the switch lever of the present invention, and FIG. 2 is an exploded perspective view thereof. In the present embodiment, the same components as those described in the prior art are denoted by the same reference numerals. Is omitted.
[0024]
In the figure, reference numeral 21 denotes a cylindrical lever body (not shown) having a base portion (not shown) so that each switch of the vehicle combination switch can be operated, and a rotation-preventing protrusion of a shaft holding portion 21A provided on the inside thereof. A split groove 2A provided at the lower portion of the cylindrical shaft 2 is inserted and fitted into the hole 21C having the portion 21B from the opening 21D side of the tip of the lever body 21 so as to correspond to the rotation-preventing convex portion 21B. It is the same as in the prior art that the ring 3 is inserted into the groove 2B provided at the lower end of the shaft 2 from the side opening 21E of the lever body 21 to prevent the shaft 2 from coming off upward.
[0025]
A terminal plate 22 having a plurality of fixed contacts 4 on the upper surface is provided in the middle portion of the shaft 2 in the hole portion 22B having the rotation prevention convex portion 22A up to the position restricting portion 2C of the shaft 2. The rotation stop convex portion 22A is inserted and fitted to the split groove 2D.
[0026]
Further, the central hole 23A of the rotor 23 holding the movable contact 6 elastically contacting the fixed contact 4 of the terminal plate 22 from the upper side is passed through and held rotatably, and the upper surface on the outer peripheral side from the central hole 23A. The moderation spring 8 and the ball 9 are arranged in the holes 23B1 and 23B2 provided in the upper portion, and the moderation holder 24 having the moderation mountain portion 24A on the lower surface corresponding to the moderation spring 8 and the ball 9 on the upper portion thereof. A moderation lock portion is formed by inserting the rotation prevention convex portion 24B into the split groove 2D from the tip end of the shaft 2 so as to correspond to the hole portion 24C having the rotation prevention convex portion 24B provided in the center portion. An elastic claw 24D protruding inside the hole 24C on the lower surface of the moderation holder 24 is inserted and fixed in the groove 2E provided at the tip of the moderation holder 24 to prevent the moderation holder 24 from coming off upward. Also conventional Is the same as the switch lever.
[0027]
A convex portion 23C extending in the axial direction and an elastic claw 23D below the convex portion are provided on the outer periphery of the rotor 23, and formed on the inner periphery of the opening below the cap-shaped operation knob 25 corresponding thereto. The groove 25A and the square hole 25B provided in the lower peripheral wall are inserted and engaged, and the moderation holder is provided in the hole 25D of the cylindrical protrusion 25C provided on the top surface of the cap-shaped operation knob 25. A protrusion 24E on the upper surface of 24 is inserted and fitted so that the rotor 23 can be rotated by rotating the operation knob 25, and the operation knob 25 is prevented from coming off upward.
[0028]
Further, the square hole 25 </ b> B in the peripheral wall at the lower end of the operation knob 25 is covered with the outer periphery of the upper end portion of the lever body 21.
[0029]
At the time of assembly, the terminal plate 22, the movable contact 6, the rotor 23, the moderation spring 8, the ball 9, the moderation holder 24, and the lead wire 13 are collectively assembled as a switch unit 26 and then inserted into the shaft 2. And can be temporarily fixed by the elastic claws 22C of the terminal plate 22 and the elastic claws 24F of the moderation holder 24.
[0030]
Since the operation of the switch lever of the present invention configured as described above is the same as that of the prior art, the description thereof is omitted.
[0031]
【The invention's effect】
As described above, according to the present invention, in the configuration of the operation knob serving as the tip operating portion of the switch lever, the hole at the top of the operation knob is unnecessary, and therefore the lid that closes this hole is also unnecessary. The cost can be reduced by reducing the cost and the number of assembling steps, and the boundary line between the operation knob and the lid body does not appear and the appearance is improved.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a switch lever according to an embodiment of the present invention. FIG. 2 is an exploded perspective view. FIG. 3 is a side sectional view showing a conventional switch lever. Explanation of]
2 Axis 2A Split groove 2B Groove 2C Position regulating portion 2D Split groove 2E Groove 3 Ring 4 Fixed contact 6 Movable contact 8 Moderation spring 9 Ball 21 Lever body 21A Shaft holding portion 21B Anti-rotation convex portion 21C Hole portion 21D Opening portion 21E Side surface Opening 22 Terminal plate 22A Anti-rotation convex part 22B Hole part 22C Elastic claw 23 Rotor 23A Central hole 23B1, 23B2 Hole 23C Protrusion part 23D Elastic claw 24 Moderation holding body 24A Moderation peak part 24B Anti-rotation convex part 24C Hole part 24D Elastic claw 24E Projection 24F Elastic Claw 25 Operation Knob 25A Groove 25B Square Hole 25C Projection 25D Hole 26 Switch Unit

Claims (3)

A cylindrical lever body, a columnar shaft fixed to the inside thereof, a terminal plate fixed to an intermediate portion of the shaft and having a plurality of fixed contacts on the upper surface, and rotatably held above the fixed plate holding the movable contact elastically contacts the contact on the lower surface, a rotor which holds the detent spring and ball on the upper surface, and moderation carrier with click teeth portion on the lower surface is fixed to the upper end of the shaft, the lever body upper end opening of the parts made from the cap-like operating knob covering cormorants downward is opening, the outer periphery of the rotor is provided below with its protrusions projecting portion axially extending elastic claw, inserted into and latched in response thereto A switch lever having a groove on the inner periphery of the opening below the operation knob to be joined and a square hole in the peripheral wall of the lower end .   The switch lever according to claim 1, wherein the fitting portion formed by the elastic claw of the rotor and the square hole of the operation knob is covered by the outer periphery of the upper end portion of the lever body.   3. The switch lever according to claim 1, wherein the terminal plate and the rotor are temporarily fixed by the elastic claws provided on the terminal plate, and the moderation holding body and the rotor are temporarily fixed by the elastic claws provided on the moderation holding body.

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