JPH0244092B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Industrial Application Field The present invention relates to a turn signal switch suitable for use in vehicles, primarily motorcycles.

(2) Prior Art The above-mentioned turn signal switch is supported, for example, in a switch case by a pivot protruding from the inner wall of the case, and swings around the pivot from a neutral position to a left turn display position and a right turn display position on both sides of the switch case. and a switch operator movable between a push-in position and a return position in a direction perpendicular to the pivot axis, and a return spring that urges the switch operator to the neutral position and the return position, The tip of the switch operator protrudes out of the switch case through a through hole drilled in one side wall of the case, an operating knob is attached to the protruding end, and the switch operator is swung through the knob. There is a conventionally known device in which the right turn or left turn indication circuit is closed by pressing the switch operator through the knob, and the right turn or left turn indication circuit is opened by pushing the switch operator through the same knob. (See Publication No. 13158).

(3) Problems to be Solved by the Invention In the above-mentioned conventional switch, the switch operator has a long hole forming part having a long hole for sliding the pivot shaft to allow the switch operator to push in and return the switch, and the long hole forming part. It consists of a knob mounting part that is connected to the knob side end of the part and loosely inserted into the through hole in the case side wall, and in particular, the long hole forming part is as wide as possible to provide sufficient strength. On the other hand, the knob mounting portion is formed to have a width as narrow as possible so that the swing stroke of the portion is not unduly restricted due to interference between the knob mounting portion and the inner surface of the through hole.

The elongated hole forming portion is formed so as to overhang further toward the knob side than the inner edge of the elongated hole on the knob side, but the overhang portion is formed to have a relatively wide width for the reasons mentioned above. Therefore, in order to avoid interference between the side wall and the through hole, it is necessary to arrange the one side wall of the switch case further outward than the overhang part. This was an obstacle to miniaturization.

The present invention has been proposed in view of the above, and provides a low-cost turn signal switch that solves the above-mentioned problems of conventional ones and allows the switch case to be downsized in the direction in which the switch operator is pressed. The purpose is to

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, according to the present invention, a switch is provided in the switch case, supported by a pivot protruding from the inner wall of the case, and neutral about the axis. a switch operator capable of swinging from a position to a left-turn display position and a right-turn display position on both sides thereof, and capable of moving between a push-in position and a return position in a direction perpendicular to the pivot axis;
a return spring that urges the switch operator to the neutral position and the return position, and a tip of the switch operator projects out of the switch case through a through hole bored in one side wall of the switch case;
An operating knob is attached to the protruding end, and the switch operator is swung through the knob to close the right turn or left turn display circuit, and the switch operator is pushed through the knob to operate the switch operator. In the turn signal switch for a vehicle, the switch operator has a notch on the knob side that engages with the pivot shaft and allows the switch operator to be pushed and returned. A contact actuating part formed to open at an edge, a pair of connecting parts rising from both sides of the middle part of the contact actuating part, and a pair of connecting parts integrally connected and substantially parallel to the contact actuating part. and a knob mounting portion extending in the opposite direction thereto, the knob mounting portion having a width smaller than that of the contact actuating portion in the direction of swinging about the pivot shaft, and the knob mounting portion extending in the opposite direction to the through hole. The contact actuator is loosely inserted, and an edge of the contact operating portion on the knob side is disposed close to the inner surface of the one side wall of the switch case.

(2) Effect According to the above configuration, the knob-side edge of the contact actuating part, which is formed wider than the knob mounting part, is overhanged on the knob side from the opening edge of the notch with which the pivot shaft engages. Since it is not necessary, place the inner surface of the one side wall of the switch case close to this edge on the pivot side,
In other words, it can be placed as close as possible to the pushing side of the knob. Further, since the knob mounting part is connected to the contact operating part through the two connecting parts raised from both sides of the middle part thereof, the supporting rigidity for the knob mounting part is relatively high. A switch operator consisting of a contact operating part, both connecting parts, and a knob mounting part can be easily obtained by cutting and raising a part of a single plate.

(3) Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a switch case having a substantially cylindrical shape, and both end faces of the switch case are provided with through holes through which the running handle 2 of the motorcycle passes. 3 is formed,
A knob 5 attached to the outer end of a switch operator 14, which will be described later, protrudes from the outer surface of one side wall of the case. The proximal end of the knob 5 is adapted to fit into a recess 4 formed on the outer surface of the one side wall of the case, thereby minimizing the amount of protrusion of the knob 5 from the outer surface of the one side wall of the case. It is possible to effectively prevent other objects from getting caught on the knob attachment portion 14c of the switch operator 14.

The switch case 1 includes a pair of semi-cylindrical bodies 1 ₁ , 1 ₂
It is formed into a cylindrical shape by butting the openings of
One of the semi-cylindrical bodies ₁₁ is provided with a turn signal switch Sw as described below.

The recess 6 formed at the bottom of the semi-cylindrical body ₁₁ has a
A slider holding member 7 having an open top surface and a side surface on the knob 5 side is fitted, and the slider holding member 7 is fixed to the semi-cylindrical body ₁₁ with a plurality of machine screws 8, and forms the inner wall of the switch case. It is held in place by a presser plate 9 that prevents it from coming off. A slider 10 is fitted into the slider holding member 7 so as to be slidable in the axial direction of the travel handle 2, and a contact mounting plate 11 is provided at the side opening of the slider holding member 7. is fitted. The slider 10 and the contact mounting plate 11 are provided with a plurality of movable and fixed contacts 12, 13, respectively, of right turn and left turn indicating circuits (not shown). The slider 10 is held at neutral, right turn, and left turn display positions by a click mechanism (not shown).

On the upper surface of the presser plate 9, a switch operator 14 made of a plate material is disposed in a neutral position perpendicular to the sliding direction of the slider 10. As clearly shown in FIG. 4, the switch operator 14 integrally connects a contact actuating portion 14a, a pair of connecting portions 14b rising from both sides of the intermediate portion thereof, and connects the connecting portions 14b together. A knob attachment part 1 extending substantially parallel to the part 14a and in the opposite direction.
4c, the knob mounting portion 14c is formed narrower than the contact operating portion 14a, and the knob 5 is fixed to the tip thereof. The contact actuating portion 14a includes a contact actuating portion 14a that is located between the two connecting portions 14b and
A notch 15 is formed at the edge of the knob 5 side.

The contact operating portion 14a is disposed on the holding plate 9, and a pivot 17 protruding from the holding plate 9 engages with the notch 15 of the contact operating portion 14a. A screw 19 is screwed into the pivot shaft 17 through a washer 18, so that the switch operator 14 can be moved between the push-in position and the return position in a direction perpendicular to the pivot shaft 17 without coming off the pivot shaft 17. .
Further, the knob mounting portion 5 is attached to one side wall ₁ of the semi-cylindrical body 1 ₁ .
It protrudes outside _the case 1 through a through hole 16 formed by a notch formed on the upper edge of the semi-cylindrical body ₁₂ and the lower edge of one side wall of the semi-cylindrical body 12.

A pair of first and second engagement pins 20 ₁ and 2 that protrude downward are provided at the inner end portion of the contact operating portion 14a.
0 ₂ is arranged on a straight line parallel to the sliding direction of the slider 10. A triangular cam 22 in the form of an isosceles triangle having first and second slopes 21 ₁ and 21 ₂ protrudes from the upper surface of the slider 10 and has its apex located between both engaging pins 20 ₁ and 20 ₂ . has been done.

The inner end surface of the contact actuating portion 14a is formed into an arcuate surface with a gentle upward trend toward both sides from the central trough 23, and these arcuate surfaces form a pair of first and second arcuate surfaces.
The return cams 23 ₁ and 23 ₂ are configured. A return spring holding member 24 is provided in a protruding manner on the slider holding member 7 so as to face the trough portion 23 , and the cylindrical portion 24
The fixed end side of the return spring 25 of the switch operator 14 is housed in the inside a, and the operating end side of the return spring 25 and the steel ball 26 connected thereto are housed in the U-shaped part 24b.
is accommodated.

The switch operator 14 is moved to the illustrated neutral position and return position, in which the bottom of the notch 15 is brought into contact with the pivot 17 by the elastic force of the return spring 25 via the steel ball 26 that engages with the trough 23. is always held.
The one side wall _{11a of the semi-cylindrical body 1r is} disposed close to the edge of the contact operating portion 14a of the switch operator 14 on the knob side where the notch 15 opens.

By configuring the switch operator 14 as described above, the notch 1 with which the pivot shaft 17 engages is formed.
5 (corresponding to the elongated hole in the prior art), there is no need to overhang the knob-side edge of the contact operating portion 14a, which is formed wider than the knob mounting portion 14c, on the knob 5 side. The inner surface of the case one side wall 1 _1a brought close to this edge is the pivot point 1
7 side, that is, the push-in side of the knob 5, and thereby the switch case 1 can be made more compact in the push-in direction of the switch operator 14. Moreover, since the contact operating part 14a is connected with the knob mounting part 14c via the connecting parts 14b raised from both sides of the middle part thereof, the switch operator 14 can be attached to a part of one plate. You can easily obtain it by cutting it up.

Next, the operation of the above embodiment will be explained. When the vehicle is traveling straight, the triangular cam 22 of the slider 10
is the switch actuator 1 with its top in the neutral position.
4, and is stopped at the center between the first and second engaging pins 20 ₁ and 20 ₂ of 4, and therefore the right turn and left turn indicating circuits are open. When turning right,
When the switch operator 14 is swung in the counterclockwise direction in FIG. 2 around the pivot shaft 17, the first engagement pin ₂₀₁ is rotated in the direction a in FIG.
₁ , slide the slider 10 in the direction of arrow b in FIG.
Make the indicator lamp blink.

As the switch operator 14 swings, the steel ball 26 rides on the top of the first return cam ₂₃₁ and returns to the spring 25.
is compressed, so when the swinging force on the switch operator 14 is released at the sliding limit of the slider 10 in the direction of arrow b, it swings clockwise in FIG. 2 due to the elastic force of the return spring 25. and return to the neutral position,
On the other hand, the slider 10 remains at its sliding limit in the direction of arrow b.

When opening the right turn indication circuit, when the switch operator 14 is pushed in, the second engagement pin 20 ₂ moves to the fifth position.
The second slope 2 of the triangular cam 22 goes straight in the direction of arrow c in the figure.
1 ₂ and returns the slider 10 to the neutral position in the direction of arrow d in FIG.

In addition, when turning left, the operation opposite to the above is performed.

C. Effects of the Invention As described above, according to the present invention, the switch case is supported by a pivot provided protruding from the inner wall of the case, and is swung around the pivot from the neutral position to the left turn display position and the right turn display position on both sides of the switch case. a switch operator that is movable and movable between a push-in position and a return position in a direction perpendicular to the pivot axis; and a return spring that biases the switch operator towards the neutral position and the return position; The tip of the switch operator protrudes out of the switch case through a through hole drilled in one side wall of the switch case, an operating knob is attached to the protruding end, and the switch operator is swung through the knob. In the vehicle turn signal switch, the turn signal switch for a vehicle is operated to close the right turn or left turn indicating circuit, and the switch operator is pressed and operated via the knob to open the right turn or left turn indicating circuit. The child includes a contact actuating part formed such that a notch that engages with the pivot shaft and allows the switch operator to be pushed in and returned to be opened at the edge on the knob side, and a middle part of the contact actuating part on both sides. It is composed of a pair of rising connecting parts and a knob mounting part that integrally connects the two connecting parts and extends substantially parallel to and in the opposite direction to the contact operating part, and the knob mounting part is , the width in the swinging direction around the pivot shaft is formed to be smaller than that of the contact actuating part, and the contact actuator is loosely inserted into the through hole, and the edge of the contact actuator on the knob side is formed on the inner surface of the one side wall of the switch case. Therefore, there is no need to overhang the knob-side edge of the contact operating portion, which is formed wider than the knob mounting portion, on the knob side from the opening edge of the notch with which the pivot shaft engages. Therefore, it is possible to bring the inner surface of the one side wall of the switch case close to this edge as close as possible to the pivot side, that is, the push-in side of the knob, which makes it possible to downsize the switch case in the push-in direction of the switch operator. It's advantageous. Further, since the knob mounting part is connected to the contact operating part through the two connecting parts raised from both sides of the middle part thereof, the supporting rigidity for the knob mounting part is relatively high. A switch operator consisting of a contact operating part, both connecting parts, and a knob mounting part can be easily obtained by cutting and raising a part of one plate material, which can contribute to cost reduction.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is a sectional view taken along the line shown in FIG. 1, and FIG.
3 is a cross-sectional view taken along the line shown in FIG. 2, FIG. 4 is a perspective view of the switch operator, and FIG. 5 is an explanatory diagram of the operation of a slider having movable contacts. 1... Switch case, 1 _1a ... One side wall, 5...
...Knob, 14...Switch operator, 14a...Contact operating part, 14b...Connecting part, 14c...Knob mounting part, 15...Notch, 17...Pivot, 25...
Return spring.

Claims (1)

[Scope of Claims] 1. Supported by a pivot shaft 17 protruding from the inner wall of the case within the switch case 1, and capable of swinging around the shaft 17 from a neutral position to a left turn display position and a right turn display position on both sides thereof; and a switch operator 14 that can move between a push-in position and a return position in a direction perpendicular to the pivot shaft 17, and a return spring 25 that biases the switch operator 14 toward the neutral position and the return position.
The switch operator 14 is inserted through a through hole 16 bored in one side wall of the switch case 1.
The tip of the switch is made to protrude outside the switch case 1, and an operating knob 5 is attached to the protruding end, and the switch operator 14 is swung through the knob 5 to close a right turn or left turn display circuit. Further, in a turn signal switch for a vehicle, in which the switch operator 14 is pressed through the knob 5 to open the right turn or left turn display circuit, the switch operator 14 is engaged with the pivot shaft 17. A contact actuating part 14a is formed such that a notch 15 for allowing the switch operator 14 to be pushed in and returned to be opened at the edge on the knob 5 side, and a pair of contacts rising from both sides of the middle part of the contact actuating part 14a. a connecting portion 14b, which integrally connects both connecting portions 14b, and is substantially parallel to the contact operating portion 14a;
and a knob mounting portion 14c extending in the opposite direction.
The knob mounting portion 14c has a width in the swing direction about the pivot shaft 17 that is equal to the width of the contact operating portion 1.
The through hole 16 is formed smaller than that of the hole 4a.
The knob 5 of the contact actuating part 14a is loosely inserted into the
A turn signal switch for a vehicle, characterized in that a side edge is disposed close to the inner surface of the one side wall of the switch case 1.