KR910008828Y1 - Switch - Google Patents

Abstract

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Description

switch

1 is a perspective view of a switch for a windshield wiper of an automobile according to an embodiment of the present invention.

2 is a cross-sectional view of the switch.

3 is a vertical sectional view of the switch along line I-1 shown in FIG.

4 is a cross-sectional view of the contact holder area of the switch.

5 is a vertical cross-sectional view of the first degree switch carrying the first contact holder in the operating position.

6 is a vertical cross-sectional view of the first degree switch having a second contact holder in the operating position.

FIG. 7 is a vertical cross-sectional view of the FIG. 1 switch with a third contact holder in the operating position. FIG.

FIG. 8 is a vertical sectional view of the FIG. 1 switch showing the position of the switch component when the first and second operating members are operated simultaneously in the prescribed direction.

* Explanation of symbols for the main parts of the drawings

1: Casing 1a: Stop Position

2, 3, 4: first, second, third actuating members 2a, 3a, 4a, 2b, 3b, 4b: side

5: axis 6, 7, 8: first, second, third contact holder

9: movable contact 10: fixed contact

11: helical spring 12: indenter

13, 14: first and second protrusions 15: protrusions

16, 17: first and second return member

The invention contemplates a number of forms in which one contact holder is moved from the operating position to the initial or neutral position upon movement of the other contact holder relative to the operating position and prevents one or more contact holders from being simultaneously placed in the operating position. A switch having a contact holder.

Conventional switches include three contact holders juxtaposed in the casing of the switch, the corresponding liter or return member and the stopper or stop member. The contact holder of the switch is moved from the neutral position to the operating position by the propulsion of the operating member. The liters cooperate with the liters to prevent the stopper from placing one or more contact holders in the operating position at the same time when one of the contact holders returns to the other contact holder from the neutral position when moving to the operating position. Since the return member and the stopper are provided separately for the conventional switch, the switch has a large number of components and tends to require accurate dimensions of the parts, which makes the manufacture of the switch difficult.

One object of the present invention is to provide a switch that overcomes the problems and disadvantages of the prior art.

It is an object of the present invention to provide a switch which makes the manufacturing easier by making the number of parts smaller and requiring less accuracy of dimensions than conventional switches.

According to the object of the present invention as specifically and broadly described for achieving the above object, a switch is moved by a plurality of juxtaposed in the switch casing which is moved from the initial or neutral position to the operating position by the operation of the operating member and vice versa. And a contact holder, a projection provided on the surface of the contact holder, and a return member provided between the projections and moved perpendicular to the direction of movement of the contact holder. When one of the contact holders is moved from the neutral position to the operating position while the other contact holder is held at the operating position, the return member returns to the contact holder held at the neutral position to the operating position, thereby moving the contact arc. It is pushed out automatically by the action of the protrusion of the holder. The literal, which also acts as a stopper, prevents the contact holder from being placed in the operating position at the same time.

According to the present invention, since the stopper is completely incorporated into the return member of the switch, no additional parts are required to perform the stopper function, the total number of parts in the switch is substantially reduced, and the switch is no longer required because of the high precision of the part It is easy to manufacture.

The accompanying drawings constitute an embodiment of a part of the specification and describe one embodiment of the present invention together with the description to provide a description of the principles of the present invention.

Preferred embodiments of the present invention are described in more detail below by way of example in conjunction with the accompanying drawings.

1 shows a windshield wiper switch of an automobile according to an embodiment of the present invention. As shown in FIG. 3, the switch includes a casing 1 and first, second and third L-type actuating members 2, 3 and 4 for adjusting the windshield wiper operation.

The operating members 2, 3, 4 are juxtaposed to the casing 1. The sides 2a, 3a, 4a of each actuating member 2, 3, 4 project laterally from the casing 1. The sides 2b, 3b, 4b of each actuating member 2, 3, 4 protrude perpendicularly to the sides 2a, 3a, 4a into the casing 1 as shown by this square chain in FIG. do. The actuating members 2, 3, 4 are pivoted on the shaft 5 when pushed downward in the defined direction A or vice versa, as shown in FIG. A handle 19 provided on the periphery of the casing 1 adjusts the intermittent operating time interval of the windshield wiper.

In FIG. 3, the first, second and third contact holders 6, 7 and 8 of each actuating member 2, 3, 4 are received in the casing 1 in parallel position. The sides 2b, 3b, 4b of each actuating member 2, 3, 4 are adapted to move the corresponding contact holders 6, 7, 8 in the prescribed direction B or vice versa when the actuating member is manipulated. Engaged in the intermediate position of each contact holder 6, 7, 8 to move.

In FIG. 2 the movable contact 9 is provided on the left and right sides of the second contact holder 7 and only in the left position of the first and third contact holders 6, 8. The fixed contact 10 is provided in the casing 1 to engage the movable contact 9 either inside or outside the corresponding fixed contact.

In FIG. 4, the indenter portion 12 having the compressed helical spring 11 held in contact with the casing 1 by pressing the indenter portion is connected to the contact holders 6, 7, and 8. Is provided. Only the casing 1 is provided to the first protrusion 13 and the second protrusion 14. The first protrusion 13 is provided to the first contact holder 6 and the indenter 12, and the first and second protrusions 13 and 14 are respectively the second and third contact holders 7 and 8. ) Is provided as an indenter (12). When the indenter 12 of the second contact holder 7 is located between the first and second protrusions 13 and 14, as shown by the solid circle in FIG. 4, the second contact holder 7 ) Is maintained in a neutral position. When the second contact holder 7 moves in the defined direction B, the indenter 12 is arranged on the first protrusion 13 as shown by the dashed circle in FIG. The contact holder 7 is moved to the first operating position.

When the second actuating member 3 is operated in the opposite direction in the prescribed direction A shown in FIG. 2, while the second contact holder 7 is in the neutral position, the second contact holder 7 Is moved in the opposite direction from direction B as shown in FIG. 4, the indenter 12 is arranged on the second protrusion 14 as shown by the dashed circle in FIG. As a result, the second contact holder 7 is moved to the second operating position. When the second actuating member 3 is released, the indenter 12 of the second contact holder 7 automatically slides from the second protrusion 14 and returns to the neutral position. The third contact holder 8 is operated similarly to the operation of the second contact holder 7 when the third operating member 4 is operated similarly.

While the first operating member 2 is operated in the direction A, the first contact holder 6 is moved in the direction B from the operating position when the commercially available first contact holder 6 is in the neutral position. . However, as shown in FIG. 3, the stopper portion 1a of the first contact holder 6 disposed in the casing 1 may move in the opposite direction from the direction B in the first contact holder 6. This prevents the first operating member 2 from being operated in the opposite direction in the direction A as a result.

In FIG. 3 a projection 15 of rectangular or similar form is provided on the surface of the first, second and third contact holders 6, 7 and 8. A flat irregular first return member 16 is provided between the projections 15 of the first and second contact holders 6, 7. A second return member 17 of similar type is provided between the projections 15 of the second and third contact holders 7, 8. The first and second return members 16, 17 having the V-shaped notches 18 corresponding to the protrusions 15 of the first, second, and third contact holders 6, 7, 8 are contact holders. It is moved in the direction C or the opposite direction perpendicular to the direction of.

Operation of the switch according to the present invention is described in detail below. In FIG. 5, when only the first actuating member 2 is operated in the direction A shown in FIG. 2, the first contact holder 6 is moved in the B direction from the initial or position to the actuation position. On the other hand, since the protrusion 15 of the first contact holder 6 pushes the first return member 16 in the direction C, the first contact holder 6 is maintained in the operating position. As a result, the windshield wipers move quickly. In this position, the first feedback member 16 is in contact with the second feedback member 17.

In FIG. 6, only when the second operating member 3 is operated in the direction A, the third contact holder 7 is moved in the direction B from the neutral position to the first operating position. As a result, the windshield wipers move slowly. When the second actuating member 3 is subsequently operated in the opposite direction from the direction A, the second contact holder 7 is moved to the second actuating position as shown by the advantaged square dashed line in FIG. do. When the second actuating member 3 is released, the second contact holder 7 automatically returns to the neutral position.

In FIG. 7, when only the third operating member 4 is operated in the direction A, the third contact holder 8 moves in the direction B from the neutral position to the first operating position, The projection 15 of the third contact holder 8 pushes the second return member 17 in the opposite direction from the direction C, so that the third contact holder 8 is held in the first operating position. As a result, the windshield wipers move intermittently. When the third actuating member 4 is subsequently operated in the opposite direction in the direction A, the third contact holder 8 is moved to the second actuating position as shown by the double-square dashed line in FIG. . On the other hand, the projection 15 of the third contact holder 8 pushes the second feedback member 17 in the opposite direction from the direction C. The third contact holder 8 automatically returns to the neutral position when the third actuating member 4 is released. In this position, the second return member 17 moves in the opposite direction from the direction C to contact the first return member 16.

While the third actuating member 4 is operated in the opposite direction in the direction A, the third contact holder 8 when the first contact holder 6 is in the operating position as shown in FIG. The second return member (1) moves in the opposite direction, while the protrusion (15) of the third contact holder (8) pushes the first return member (16) in turn in the opposite direction from the direction (C). 17), the first contact holder moves in the opposite direction in direction B and returns the first contact holder 6 to the neutral position.

While the third actuating member 4 is operated in the opposite direction in direction A, while the second contact holder 7 is in the first operating position, the third contact holder 8 is opposite in the direction B. Direction, the protrusion 15 of the third contact holder 8 is opposite to the second feedback member in the direction C, which in turn pushes the protrusion 15 of the second contact holder 7. 17), the second contact holder moves in the opposite direction in direction B, resulting in the second contact holder returning to the neutral position.

When the first and second operating members 2 and 3 are operated in the direction A at the same time, the first and second contact holders 6 and 7 move in the direction B, but the first and second The protrusions 15 of the contact holders 6 and 7 are stopped by the first feedback member 16 for further movement as shown in FIG. Therefore, the first and second contact holders 6 and 7 are prevented from moving more in the direction B, and consequently the first and second contact holders are arranged at the same time in the operating position.

Similarly, when the second and third actuating members 3 and 4 are operated in the direction A at the same time, the second return member 17 has the second and third contact holders 7 and 8 disposed at the same time in the operating position. Prevent it. Since the second and third actuating members 3 and 4 can be cut in the direction A or in the opposite direction, the number of actuation forms of the switch can be more than that of the conventional switch.

Various modifications and changes can be made in the structure and the switch without departing from the spirit and scope of the present invention and will be apparent to those of ordinary skill in the art. As an example, in the above embodiment of the present invention, the number of operating members and the number of comparable contact holders are three, but the present invention is not limited to this number and may be, for example, two.

Claims (7)

A casing, a plurality of juxtaposed contact holders movably mounted to the casing between the neutral position and the at least one operating position, each having a protrusion, and the casing for operating each contact holder to the neutral position and the operating position. An actuating member for each contact holder installed in the casing, and a plurality of juxtaposed return members movably mounted to the casing, the plurality of juxtaposed return members adapted to engage with respective protrusions of the contact holder, respectively When one of the plurality of contact holders moves from the neutral position to the operating position, the contact holder of one of the plurality of contact holders is neutral from the operating position when the operating member is operated with respect to the other contact holder. And switch arranged for use up to position. 2. A switch according to claim 1, wherein said projection and said return member are arranged to block said at least one contact holder from moving to an operating position upon simultaneous operation with each actuating member. The switch of claim 1, wherein the protrusion of the contact holder has a polygonal state that engages with the feedback member to move the feedback member in a direction perpendicular to the movement of the contact holder. The planar irregularity of claim 1, wherein the feedback member is moved by each contact holder and is joined by each protrusion to move each contact holder and has planar irregularities having at least one V-shaped notch to engage each protrusion. The switch characterized by the shape. 2. The casing of claim 1, wherein the casing has an irregular inner surface having a plurality of projections for each contact holder, each contact holder having an indenter that rests on an irregular surface upon operation of the corresponding actuating member. And the projection portion maintains the contact holder in one direction at the operating position when the operating member is operated, and moves the contact holder to the neutral position when the corresponding operating member is released in the other direction from the operation of the operating member. It has a switch. 6. The switch of claim 5 wherein said indenter portion comprises a rotatable member that engages an irregular surface. 5. The switch of claim 4, wherein the opposite edge of the at least one return member has a V-shaped notch that engages the protrusion of the adjacent contact holder to limit movement of the adjacent contact holder toward the operating position.