JP5926599B2 - Lever switch device - Google Patents

Description

  The present invention relates to a lever switch device having an improved structure for preventing a contact holder from floating.

  2. Description of the Related Art Conventionally, in a lever switch device that is used for operations such as a vehicle direction instruction, a passing signal, or a wiper operating speed setting or a washer operation, as shown in FIG. A body 3 is provided so as to oppose, and a bracket 4 is rotatably supported on the body 3 by a shaft portion 4a. In addition, the bracket 4 supports an operation lever 5 by a shaft portion 5a so as to be rotatable in a direction intersecting with the rotation direction of the bracket 4, and a moderation mechanism 6 that gives moderation to the rotation of the operation lever 5 is operated. A moderation piece 8 provided by urging the lever 5 with a moderation spring 7 and a moderation part 9 having a moderation valley 9a corresponding to the moderation piece 8 are constituted.

  A middle case 10 is disposed between the bracket 4 and the insulator 2, and the middle case 10 sandwiches the contact holder 11 between the insulator 2 and prevents floating. The holder 11 is moved and operated along the insulator 2 by the bracket 4 that rotates about the shaft portion 4 a by the operation of the operation lever 5. For this reason, the groove 10a of the middle case 10 that penetrates the connecting portion 11a of the contact holder 11 with the bracket 4 extends in an arc shape centering on the shaft portion 4a of the bracket 4 to allow movement of the contact holder 11. It is like that. A movable contact 12 is held in the contact holder 11, and the movable contact 12 comes into contact with and is separated from the fixed contact 1 as the contact holder 11 moves.

  The movable contact 12 is in contact with and away from the fixed contact 1, and in the above operation, the direction of the vehicle is set or the operating speed of the wiper is set. In addition, the bracket 4 of the operation lever 5 is set. There is a movable contact for operating a passing signal or a washer and a fixed contact with which it contacts and separates by rotation in a direction crossing the rotation direction (see, for example, Patent Documents 1 to 3).

Japanese Patent No. 3881191 JP 2000-357435 A JP 2005-332665 A

  In the case of the above-described conventional one, the contact holder 11 is sandwiched between the insulator 2 and the floating is prevented in order to ensure the contact (conduction) of the movable contact 12 with the fixed contact 1. The dedicated middle case 10 is necessary, and the parts cost and the assembly man-hour are increased correspondingly, and the product is expensive.

  The present invention has been made in view of the above circumstances, and therefore the object thereof can be achieved without the need for a dedicated middle case to prevent the contact holder from floating, and the product cost can be reduced. It is in providing the lever switch apparatus which can plan.

In order to achieve the above object, a lever switch device according to the present invention includes an insulator having a fixed contact, a body provided to face the insulator, a bracket rotatably supported on the body , and the bracket. An operation lever supported rotatably in a direction crossing the rotation direction thereof, a moderation piece provided on the operation lever, and a moderation part having a moderation valley corresponding to the moderation piece on one side, is configured, a detent mechanism providing a detent to the rotation of the operation lever, is interposed set between said insulator by said detent part, the contact holder to undergo movement operation along the insulator by the bracket pivots, the fixed contact and toward or away from the movable co with this held in the contact holder and the movement of the contact holder ; And a tact, the detent part has a shape sandwiching the contact holder to the other, characterized in that interpose the contact holder between said insulator.

  According to the above means, the contact holder is sandwiched between the moderation part of the moderation mechanism and the insulator, that is, the contact holder can be prevented from floating by using the moderation part of the moderation mechanism. There is no need for a dedicated middle case like the ones. In this way, parts cost and assembly man-hour can be reduced, and reduction in product cost can be achieved.

Vertical bottom view showing an embodiment of the present invention 1 equivalent diagram showing a conventional example

Hereinafter, one embodiment (one embodiment) of the present invention will be described with reference to FIG.
FIG. 1 is a longitudinal bottom view of a base of a lever switch device (excluding the front end side of the operation lever 27) provided on a steering column in the vicinity of a steering wheel of a vehicle, in particular, an automobile. It constitutes the outer shell of the base. The insulator 21 is provided with a plurality of (only one shown) fixed contacts 23 on the surface on the body 22 side (upper surface in the figure). In addition, a plurality of moderation part mounting holes 24 and two guide protrusions are provided. 25. The body 22 is provided so as to oppose the insulator 21 and coupled thereto.

  On the body 22, a bracket 26 is supported by a shaft portion 26a so as to be rotatable in a direction orthogonal to the drawing sheet. This bracket 26 is mainly composed of a rectangular tube-shaped tube portion 26b. In the figure, a shaft portion 26a protrudes from the upper portion, and a guided protrusion 26c protrudes from the lower portion. The guide protrusion 26 c is positioned between the guide protrusions 25 of the insulator 21. The guide protrusion 25 is provided in an arc shape centered on the bearing hole 22a of the body 22 into which the shaft portion 26a of the bracket 26 is fitted. When the bracket 26 rotates about the shaft portion 26a, the guide projection 25 is guided. The protrusion 26c moves between the guide protrusions 25 along an arcuate locus along these. A plurality of fixed contacts 23 of the insulator 21 are arranged in parallel with the guide protrusions 25.

  Furthermore, an extension 26d is provided at the tip of the bracket 26 (the part located at the back of the body 22), and a contact operation projection 26e protruding toward the insulator 21 is provided at the tip of the extension 26d. Provided. Further, the base portion of the operating lever 27 is inserted into the inside of the cylindrical portion 26b of the bracket 26, and the operating lever 27 crosses the rotation direction of the bracket 26 (particularly, by the shaft portions 27a provided on both sides thereof. In this case, it is supported so as to be rotatable in the direction indicated by the arrow A.

  A spring housing hole 28 is formed at the tip of the operation lever 27 (the portion located in the inner part of the cylindrical portion 26 b of the bracket 26), and all of the moderation spring 29 and the moderation piece 30 are formed in the spring housing hole 28. The base of the housing.

  On the other hand, on the surface of the insulator 21 on the body 22 side, a contact holder 32 holding a movable contact 31 is disposed on the insulator 21 side, and a moderation part 33 is disposed. The moderation part 33 has a moderation valley 34 in a portion 33 a facing the moderation piece 30, and the moderation piece 30 is engaged with the moderation valley 34 by the spring force of the moderation spring 29, and the operation lever 27 is rotated. Give moderation. Accordingly, the moderation valley 34 corresponds to the moderation piece 30 and constitutes a moderation mechanism 35 that gives moderation to the rotation of the operation lever 27. Note that there are a plurality of moderation valleys 34 arranged in the direction of rotation of the bracket 26, thereby giving moderation to the rotation of the operation lever 27 with the bracket 26.

  On the other hand, the other portion 33b of the moderation part 33 has a shape in which the contact holder 32 holding the movable contact 31 is sandwiched between the operation lever 27 side and the counter operation lever 27 side (right and left in the figure). By inserting the engaging claws 36 provided at the lower part of the portion into the moderation part mounting hole 24 of the insulator 21 and engaging with each other, the moderator part 33 is inserted into the moderator part 23 while pressing the movable contact 31 against the fixed contact 23 side. 21 is attached. As a result, the contact holder 32 together with the movable contact 31 is sandwiched between the moderation part 33 and the insulator 21 and the floating is suppressed.

However, the contact holder 32 has a convex portion 32a on the anti-insulator 21 side, and this convex portion 32a is made to face the extension portion 26d of the bracket 26 from the groove 37 formed in the moderation part 33, and this convex portion 32a. The contact operation projection 26e is inserted into and connected to the hole 38 formed in FIG. The groove 37 extends in an arc shape centering on the shaft portion 26a of the bracket 26. In addition, although not shown, the insulator 21 is connected to and separated from the movable contact that interlocks with the rotation of the bracket 26. There is a fixed contact to do.

  In the lever switch device configured as described above, when the operation lever 27 is operated in the direction indicated by the arrow A, the operation lever 27 rotates in the same direction around the shaft portion 27a. By the rotation of the operating lever 27, a movable contact (not shown) is interlocked and brought into and out of contact with a fixed contact (not shown). Thereby, in a vehicle, the operation of a passing signal or a washer is performed. At that time, the moderation piece 30 is detached from the moderation valley 34 of the moderation part 33, and when the operation of the operation lever 27 is released, the moderation piece 30 returns to the state in which it is engaged. Moderation is given to the operation rotation in the direction indicated by the arrow A.

  On the other hand, when the operation lever 27 is operated in a direction perpendicular to the drawing sheet, the bracket 26 rotates together with the operation lever 27 in the same direction around the shaft portion 26a. By the rotation of the bracket 26, the contact holder 32 moves along the insulator 21 with the movable contact 31 through the connection structure of the contact operation protrusion 26 e and the hole 38, and comes in contact with and separates from the fixed contact 23. Thereby, in the vehicle, the direction of the vehicle or the operation speed of the wiper is set. At that time, the moderation piece 30 sequentially engages and moves to the moderation valleys 34 of the moderation parts 33 arranged in the rotation direction of the bracket 26, and thus the operation lever 27 is operated in a direction perpendicular to the drawing sheet. Moderation is given to rotation.

  In such a function, the contact holder 32 is sandwiched between the moderation part 33 of the moderation mechanism 35 and the insulator 21. Thereby, the moderation part 33 of the moderation mechanism 35 can be used to suppress the floating of the contact holder 32, and a dedicated middle case unlike the conventional one is not required. In this way, parts costs and assembly man-hours can be reduced, and product costs can be reduced.

  The present invention is not limited to the embodiments described above and shown in the drawings, and is not limited to a lever switch device for a vehicle, and can be implemented with appropriate modifications within a range not departing from the gist. .

  In the drawings, 21 is an insulator, 22 is a body, 23 is a fixed contact, 26 is a bracket, 27 is an operation lever, 30 is a moderation piece, 31 is a movable contact, 32 is a contact holder, 33 is a moderation part, and 35 is a moderation mechanism. Show.

Claims (1)

An insulator having a fixed contact;
A body provided opposite to this insulator;
A bracket rotatably supported by this body ,
An operation lever supported by the bracket so as to be rotatable in a direction intersecting the rotation direction thereof;
A moderation mechanism provided with a moderation piece provided on the operation lever, and a moderation part having a moderation valley corresponding to the moderation piece on one side, and a moderation mechanism that gives moderation to the rotation of the operation lever ;
Is sandwiched set between said insulator by said detent part, the contact holder to undergo movement operation along the insulator by the bracket pivots,
A movable contact that is held by the contact holder and moves toward and away from the fixed contact as the contact holder moves ;
The moderation part has a shape that sandwiches the contact holder on the other side, and the contact holder is sandwiched between the insulator and the insulator .

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