JPH046111Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) The present invention relates to a turn signal switch applied to, for example, a handle switch of a two-wheeled vehicle.

(Prior art) In conventional turn signal switches used in motorcycles, the turn signal lamp flashes when the operating lever is rotated from the neutral position to the left or right, and when the operating lever is rotated from the left or right position. Returning to the neutral position cancels the flashing of the turn signal lamp. However, when returning the operating lever from the left or right position to the neutral position, an overrun may occur, so there is a method described in Publication of Utility Model Publication No. 56-13158 to solve this problem. When the operating lever is rotated from the neutral position to each left or right position, the operating lever is automatically returned to the neutral position after the operation, and when the operating lever is rotated to the left or right positions, the turn signal lamps are turned on. The turn signal lamp starts blinking and stops blinking when the operating lever is pushed into the neutral position.

(Problem to be solved by the invention) However, in the above-mentioned device, the end opposite to the knob of the operating lever is expanded into a V-shape, and there are two holes for controlling the movement of the movable contact. Since the pin is installed upright and the end of the operating lever expands into a V-shape, the overall size of the switch base becomes large, and there is also a need for a slide to return the operating lever to the neutral position. Since the mover and spring are provided on the switch base, the depth dimension of the switch base is also large, which generally makes it difficult to make it compact.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a turn signal switch that can be easily made compact.

[Structure of the invention] (Means for solving the problem) The present invention is supported on a switch base so that it can be rotated left and right from a neutral position and can be pushed from the neutral position, and has a knob at one end and a protrusion at the other end. A lever is provided with a V-shaped guide portion that is deepest at a position corresponding to the neutral position of the lever, and a guide body is provided on the switch base so as to always correspond to the other end of the lever. A sliding piece biased by a spring toward the guide portion is provided at the other end of the lever, and the sliding piece is movably moved from the neutral position toward the first position and the second position in the opposite direction. A movable member having a holding mechanism that is held in a first position is provided, and when the lever is rotated leftward or rightward from a neutral position, the convex portion comes into contact with one surface of the movable member, and the movable member is held in the first position. Alternatively, when the lever is returned to the neutral position while being moved to the second position, the convex portion is separated so that the movable member is held in the first or second position, and the lever is moved from the neutral position to the spring. A guide surface portion is provided with which the convex portion comes into contact when the movable member is pushed in against the force to return the movable member from the first or second position to the neutral position, and the state changes depending on the moving position of the movable member. It is characterized by the provision of a switch section.

(Function) According to the above means, the other end of the lever can be made into a straight shape instead of expanding into a V-shape as in conventional ones, and the spring and slider for returning the lever to the neutral position are Since the switch base is provided in the switch base, the width and depth dimensions of the switch base can be reduced and compactness can be easily achieved.

(Example) An example of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a switch base, on one end of which mounting portions 2, 2 are erected, and on the lower surface of the other end a switch case 3 is integrally molded. A circular protrusion 4 is protruded from the upper surface of one end of the switch base 1, and a long hole 5 is provided in the middle of the lever 5.
a is inserted so as to be rotatable and slidable, and is supported via a washer 6 and a screw 7 to prevent it from coming off. A knob 8 is fixed to one end of the lever 5 with a screw 9. The lever 5 is made by integrating a first lever 10 made of metal and a second lever 11 made of plastic by welding and caulking, and the second lever 11 is opened toward the other end of the lever 5. A horizontal hole 12, a slit-like groove 13, and a downward convex portion 14 located at the other end of the lever 5 are provided. This convex portion 14 passes through a hole 1a provided in the switch base 1 and projects into the switch case 3. A metal guide body 15 and a plastic support frame 16 are attached to the upper surface of the other end of the switch base 1 with screws 17,
It is fixed at 17. The guide body 15 is provided with a V-shaped guide portion 18, which is inserted into the groove 13 of the second lever 11. A coil spring 19 and a ball 20 as a sliding piece are housed in the horizontal hole 12.
It is urged toward the guide part 18 by the urging force of the coil spring 19.

Now, the switch case 3 has a shape in which one end side of the lever 5 is opened, and a terminal base 26 having five fixed contacts 21 to 25 as shown in FIG. 3 is attached to the open part by engagement. There is. The upper surface of the movable contact holder 27 as a movable member disposed in the switch case 3 has a recess 28 as a guide surface portion as shown in FIG.
is provided, and the protrusion 4 is inserted therein. At the periphery of this concave portion 28, flat portions 28a, 28b facing each other with a wide distance d, flat portions 28c, 28d facing each other with a narrow distance e;
Slope 28e connecting between 8d and flat parts 28b, 28
An inclined portion 28f connecting between the points d and d is provided respectively.
A movable contact 2 facing the fixed contacts 21 to 23 is provided on one side of the movable contact holder 27.
A movable contact 30 facing the fixed contacts 24 and 25 is provided. A horizontal hole 31 facing the movable contact 29 is formed in the movable contact holder 27 so that both ends thereof are open, i.e., passed through, and a coil spring 32 and a ball 33 are housed therein. There are three recesses 34 on the inner surface of the switch case 3 that this ball 33 faces.
The recesses 34 to 3 are carved.
6, the ball 33, and the coil spring 32 constitute a holding mechanism 37. In addition, movable contact 3
The movable contact 30 is in the horizontal hole 38 opposite to the movable contact 30.
A coil spring 39 is provided to bias the terminal base 26 toward the terminal base 26. The above-described fixed contacts 21 to 25 and movable contacts 29 to 30 constitute a switch section 40.

Next, the operation of the above configuration will be explained. When the finger is not placed on the knob 8, the ball 20 is pushed against the guide portion 18 of the guide body 15 by the biasing force of the coil spring 19.
It engages with the deepest part of the shaft and is located at a neutral position N as shown by the solid line in FIG. Further, the movable contact holder 27 is in the neutral position Na, and the ball 33 engages with the recess 35 as shown in FIG. 7, and the movable contact 30 turns on between the fixed contacts 24 and 25 as shown in FIG. As shown in the figure, the movable contact 29 is in a non-contact state with any of the fixed contacts 21, 22, and 23. From this state, when you put your finger on the knob 8 and rotate the lever 5 in the direction of arrow R about the convex part 4, the ball 20 rolls along the guide part 18, and the coil spring 19 is compressed (Fig. 11). reference). When the lever 5 is rotated in this manner, the convex part 14 comes into contact with the flat part 28a, and the movable contact holder 27 moves in the direction of arrow A, from the neutral position Na to the position shown in FIGS. 5 and 8. It is located at the first position Ra. In this state, the ball 33 is removed from the recess 35 and the recess 34
The movable contact holder 27 is held at the first position Ra by the action of the holding mechanism 37. Next, when you release your finger from knob 8, lever 5
is rotated back in the direction opposite to the arrow R by the biasing force of the coil spring 19, and the lever 5 comes to rest at a neutral position N with the ball 20 engaged with the deepest part of the guide portion 18. When the lever 5 is rotated back in this manner, the convex portion 14 is separated from the flat portion 28a and becomes close to the opposite flat portion 28b (see the two-dot chain line in FIG. 5). On the other hand, the movable contact holder 2
7 is held at the first position Ra, the movable contact 29 moves to the fixed contact 2 as shown in FIG.
1 and 22, the movable contact 30 separates from the fixed contact 25 and the fixed contact 24
The right turn signal lamp is activated.

Next, when canceling the operation of the turn signal lamp, the knob 8 of the lever 5 which has been rotated back to the neutral position N is pushed in the direction of the arrow against the biasing force of the coil spring 19. Then, the convex portion 14
comes into contact with the inclined portion 28f and moves the movable contact holder 27 back in the direction opposite to arrow A, and finally the convex portion 14 is inserted between the flat portions 28c and 28d, and as a result, the movable contact holder 27 27 is returned from the first position Ra to the neutral position Na, and the operation of the turn signal lamp is canceled.

Next, from the state where the lever 5 is in the neutral position N, put your finger on the knob 8 and move the lever 5 to the convex part 4.
When rotated in the direction of arrow L around , the ball 20
rolls along the guide portion 18, and the coil spring 19
is compressed. When the lever 5 is rotated in this manner, the convex part 14 comes into contact with the flat part 28b, and the movable contact holder 27 moves in the direction of arrow C, from the neutral position Na to the position shown in FIGS. 6 and 9. Second
is located at position La. In this state, ball 3
3 is removed from the recess 35 and engaged with the recess 36, and the movable contact holder 27 is held at the second position La by the action of the holding mechanism 37. Next, when you release your finger from the knob 8, the lever 5 is moved by the coil spring 1.
The lever 5 is rotated back in the opposite direction of the arrow L by the biasing force 9, and the lever 5 comes to rest at the neutral position N with the ball 20 engaged with the deepest part of the guide portion 18. When the lever 5 is rotated back in this manner, the convex portion 14 is separated from the flat portion 28b, and the opposite flat portion 28a is moved away from the convex portion 14.
(See the two-dot chain line in Figure 6).
On the other hand, the movable contact holder 27 is in the second position La.
When the movable contact 29 is held in the position shown in FIG. 9, the connection between the fixed contacts 22 and 23 is turned on, and the movable contact 30 is separated from the fixed contact 24 and comes into contact only with the fixed contact 25. turn signal lamps are activated. To cancel the operation of the turn signal lamp from this state, in the same way as in the case described above, turn the knob 8 of the lever 5 located at the neutral position N.
is pushed in the direction of the arrow against the biasing force of the coil spring 19. Then, the convex portion 14 becomes the inclined portion 28f.
in contact with the movable contact holder 27 in the direction opposite to arrow C.
The convex portion 14 is finally inserted between the flat portions 28c and 28d, and the movable contact holder 27 is returned from the second position La to the neutral position Na, and is turned. Signal lamp operation is canceled.

For example, the movable contact holder 27 is in the second position.
When the knob 8 is rotated in the direction of the arrow R without being pushed in with the lever 5 in the neutral position N and the lever 5 is in the neutral position N, the convex portion 14 immediately comes into contact with the flat portion 28a adjacent to it, and the lever 5 is rotated in the direction of arrow R without pushing in. 5 is arrow R
When the movable contact holder 27 is rotated by a predetermined angle in the direction, the movable contact holder 27 located at the second position La returns to the neutral position.
Returning to Na, the movable contact holder 27 is positioned at the first position Ra with the lever 5 being rotated to the maximum in the direction of the arrow R. Therefore, the right turn signal lamp is canceled and the left turn signal lamp is activated immediately.

In the above configuration, the end of the lever 5 opposite to the knob 8 has a straight shape and does not widen as in the conventional configuration, so when the lever 5 is rotated, the other end of the lever 5 rotates. The range can be made sufficiently smaller than that of the conventional structure, and the width a of the switch base 1 can be reduced, making it easy to make the switch case in which it is housed more compact. Furthermore, in the above configuration, the coil spring 19 and the ball 20 are housed in the horizontal hole 12 provided in the second lever 11, so this is different from the conventional configuration in which these balls and coil springs are provided on the switch base side. The vertical width b can also be reduced compared to , making it easier to make it more compact.

[Effects of the invention] As is clear from the above description, the present invention has a switch base that is supported on a switch base so as to be rotatable left and right from the neutral position and movable by pushing from the neutral position, and has a knob at one end and a convex portion at the other end. A lever is provided, and a guide body having a V-shaped guide portion that is deepest at a position corresponding to the neutral position of the lever is provided on the switch base so as to always correspond to the other end of the lever. A sliding piece biased by a spring toward the guide portion is provided at the other end, and is movable from the neutral position toward the first position and the second position in the opposite direction. A movable member having a holding mechanism to be held in position is provided, and when the lever is rotated leftward or rightward from the neutral position, the convex portion comes into contact with one surface of the movable member, and the movable member is held in the first or second position. When the lever is moved to the second position and returned to the neutral position, the convex portion is separated, the movable member is held in the first or second position, and the lever is moved from the neutral position to the spring resistance. a switch portion that is provided with a guide surface that the convex portion comes into contact with to return the movable member from the first or second position to the neutral position when the movable member is pushed in, and whose state changes depending on the movement position of the movable member; Since it is characterized by the provision of the following, it has the excellent effect of easily achieving compactness.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view, Fig. 2 is a top view, Fig. 3 is a plan view of the terminal base, and Fig. 4 is taken along the - line in Fig. 1. 5 and 6 are views corresponding to FIG. 4 showing different operating states; FIG. 7 is a sectional view taken along the - line in FIG. 1; and FIGS. 8 and 9 show different operating states. Figure 7 is a diagram equivalent to Figure 10, which is - of Figure 1.
FIG. 11 is a cross-sectional view taken along the line, and a partially cutaway top view showing an operating state different from that in FIG. 2. In the drawing, 1 is a switch base, 3 is a switch case, 5 is a lever, 8 is a knob, 14 is a convex part, 15
18 is a guide body, 19 is a coil spring, 20 is a ball (sliding piece), 21 to 25
27 is a fixed contact, 27 is a movable contact holder (movable member), 28 is a recessed portion, 29 and 30 are movable contacts, 37 is a holding mechanism, and 40 is a switch portion.

Claims (1)

[Scope of utility model registration request] A lever supported on a switch base so as to be rotatable left and right from a neutral position and movable by pushing from the neutral position, and having a knob at one end and a convex portion at the other end;
A guide body is provided on the switch base so as to always correspond to the other end of the lever, and has a V-shaped guide portion that is deepest at a position corresponding to the neutral position of the lever; A sliding piece biased by a spring toward the guide portion, and a sliding piece that is movable from a neutral position toward a first position and a second position in the opposite direction, and is held at the moved position. a movable member having a holding mechanism, and the convex portion is provided on one surface of the movable member so as to come into contact with and separate from the movable member, and when the lever is rotated from a neutral position to the left or right, the convex portion comes into contact with the movable member. When the movable member is moved to the first or second position and the lever is returned to the neutral position, the convex portion is separated and the movable member is moved to the first or second position.
or a guide surface portion that is held in the second position and that the convex portion comes into contact with when the lever is pushed from the neutral position against the spring to return the movable member from the first or second position to the neutral position. and a switch portion whose state changes depending on the moving position of the movable member.