JP2009140774A - Lever switch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lever switch device not lowering the switch operation accuracy set on the body side corresponding to an operation knob and not limiting the operation angle of a lever even when the rotation operation of the lever is conducted. <P>SOLUTION: The lever switch device includes: a lever body 101 rotatably supported by a body; a first remote shaft 111 rotatably incorporated in the lever body 101, and having a first action portion for operating an operation target by being converted into the linear movement by a rotational operation of a first operation knob 110; and a second remote shaft 121 rotatably arranged in the lever body 101 with a structure coaxial with the first remote shaft 111, and having a second action portion for operating an operation target by the rotational operation of the second operation knob 120. The contact surface of an operation component operated by the first action portion is formed with the curved surface of the prescribed curvature radius whose center is almost the center of the rotational center axis of the lever body 101, and the rotation center of the second action portion is set on the rotation center axis of the lever body 101. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lever switch device, and more particularly to a lever switch device applied to a vehicle such as an automobile.

  As an example of a lever switch device applied to a vehicle such as an automobile, there is a configuration in which two operation knobs are provided at the tip of a lever that operates a turn signal switch. In this configuration, the lever is rotatably provided on the body, and two remote shafts operated by two operation knobs are incorporated in the lever in a rotatable state. And the switch corresponding to the two operation knobs provided in the body is configured to switch by rotating the tip of the remote shaft according to the rotation operation of the operation knob (for example, Patent Document 1). ).

  Further, there is a lever switch device configured such that a remote shaft is converted into a linear movement in accordance with a rotation operation of an operation knob, and a distal end portion of the remote shaft operates a switch (for example, Patent Document 2).

In these lever switch devices, since the lever is provided with two operation knobs that can be rotated, a plurality of switches can be operated by the operation knobs, and an operation lever having a slim lever shape is provided. The vehicle lever switch can be provided.
Japanese Patent Laid-Open No. 11-250772

  However, according to the lever switch devices of Patent Documents 1 and 2, the tip of the remote shaft operated by the operation knob is not provided on the rotation center axis of the lever, so that the rotation operation of the lever, For example, the position of the tip of the remote shaft moves during turn signal operation, which reduces the switch operation accuracy of the switch corresponding to the operation knob provided on the body, restricts the operation angle of the lever, Similarly, the distal end portion of the remote shaft that is operated by linear movement by the operation knob also shifts with the switch that is the operation target due to the turn signal operation, so that there is a problem that the switch operation accuracy is lowered. .

  An object of the present invention is to provide a lever switch device in which the switch operation accuracy of the switch provided on the body side corresponding to the operation knob is not lowered or the operation angle of the lever is not restricted even if the lever is rotated. It is in.

[1] In order to achieve the above object, according to the present invention, a lever main body rotatably supported on a body around a predetermined rotation center axis, and a first operation knob rotatably incorporated in the lever main body And a first remote shaft having a first operation portion that is converted into a linear movement by a rotation operation of the first operation knob and operates an operation target, and rotates in a coaxial structure with the first remote shaft portion in the lever body. A second remote control shaft disposed at one end, and a second remote shaft having a second operation unit for operating an operation target by rotating the second operation knob at the other end; The contact surface of the operation component operated by the first operation unit is formed as a curved surface having a predetermined radius of curvature with the rotation center axis of the lever body as a center, and the rotation center of the second operation unit is On the rotation center axis of the lever body Providing a lever switch device, characterized in that are provided.
[2] The lever switch device according to [1], wherein the operation target is a switch provided on the body side.
[3] The tip of the first operating part has a spherical shape having a predetermined radius of curvature, and the contact surface of the operating component operated by the first operating part is the tip of the first operating part. The lever switch device according to the above [1] may be a spherical shape having a larger radius of curvature than the spherical shape of the portion.

  According to the present invention, there is provided a lever switch device in which the switch operation accuracy of the switch provided on the body side corresponding to the operation knob is not lowered or the operation angle of the lever is not limited even when the lever is rotated. Is possible.

(Embodiment of the present invention)
FIG. 1 is a cross-sectional view of a lever switch device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line AA including the rotation axis E of the lever main body in FIG. 3 is a cross-sectional view taken along line HH in FIG. FIG. 4 is a partial view of the lever body viewed from the B direction in FIG. FIG. 5 is a partial view seen from the direction C in FIG.

  The lever switch device shown in FIG. 1 is disposed around a steering column of a vehicle (not shown), and the direction D in FIG. 1 is a substantially forward direction of the vehicle. Accordingly, FIG. It is sectional drawing which looked at from the up direction of vehicles.

  The body 1 has a front case 2 and a rear case 3, and the front case 2 and the rear case 3 constitute an outer shell of the body 1. A middle case 4 and a substrate 5 are provided between the front case 2 and the rear case 3. A bracket 6 is provided between the front case 2 and the middle case 4 so as to be rotatable around a shaft portion 7.

  The direction of rotation of the bracket 6 is a direction around the rotation axis E of the lever portion 100 around the shaft portion 7. A groove 8 is formed on the upper side of the middle case 4 in FIG. 1 so as to guide the rotation of the bracket 6, and a convex portion 9 that can move while sliding in the groove 8 is formed on the bracket 6. Is formed. Although not shown, the groove 8 is a groove having an arc shape concentric with the shaft portion 7.

  Further, a hollow portion 10 is formed on the right side of the bracket 6 in FIG. 1, and a base end portion of the lever portion 100 is inserted into the hollow portion 10. The lever portion 100 is provided to be rotatable around a shaft portion 12 shown in FIG. The direction of rotation around the shaft portion 12 of the lever portion 100 is an arrow F direction (rear) shown in FIG. 1 and a reverse G direction (front). In this case, the lever part 100 has a form protruding to the right side of the body 1 in FIG.

  Further, a protruding portion 14 having a hole 13 is formed at the base end portion of the lever portion 100. A spring 15 and a moderation piece 16 are accommodated in the hole 13. On the other hand, a moderation wall 17 having three valleys is formed in the back of the cavity 10 of the bracket 6. In the state of FIG. 1, the moderation piece 16 of the lever unit 100 is fitted to the intermediate valley portion of the moderation wall 17 by the urging force of the spring 15.

  The lever portion 100 includes a lever main body 101 having a cylindrical hollow cross-sectional shape, a first operation knob 110 that is rotatably disposed in a state sandwiched between the lever main body 101 and a second operation knob 120 described later. The first remote shaft 111 that rotates integrally with the operation knob 110, the first operating portion 112 formed on the opposite side of the first remote shaft 111 from the first operation knob 110, and the second operation knob 120 rotate integrally. The second remote shaft 121 and the second operating portion 122 formed on the opposite side of the second remote shaft 121 from the second operation knob 120 are configured. The lever portion 100 is a portion that is rotatably supported with respect to the body 1 and can include the moderation piece 16 described above.

  A first remote shaft 111 is rotatably incorporated in the lever main body 101, and a cam pin 113 slidable with respect to a cam groove 110 a formed in the first operation knob 110 protrudes from the first remote shaft 111. ing. Also, the first remote shaft 111 is formed with a slide groove 111a as shown in FIG. 3 so that the first remote shaft 111 can only move in the longitudinal direction without rotating with respect to the lever body 101. A rotation restricting shaft 102 projects from the lever body 101 in the slide groove 111a. As a result, the first remote shaft 111 is restricted so that it can only move in the longitudinal direction without rotating with respect to the lever body 101.

  As shown in FIG. 4, since the cam groove 110a formed in the first operation knob 110 is formed in a spiral shape, the cam pin 113 is driven by rotating the first operation knob 110. Since the rotation of the 1 remote shaft 111 is restricted by the rotation restricting shaft 102 of the lever main body 101, it is converted into a linear movement in the longitudinal direction of the lever main body 101. That is, the first remote shaft 111 slides in the longitudinal direction by the rotation operation of the first operation knob 110, and the first operation unit 112 acts on the contact holder 62 described later.

  The 1st remote shaft 111 has a hollow part, and the 2nd remote shaft 121 is rotatably arrange | positioned by the coaxial structure (concentric form) in this hollow part. A second operation knob 120 is attached to one end portion of the second remote shaft 121, and a second operation portion 122 projects from the notch portion 101a of the lever main body 101 downward in FIG. Installed.

  As shown in FIG. 1, the distal end portion 112a of the first operating portion 112 is preferably a curved surface having a radius of curvature r1, and the center is preferably on the center line axis of the lever portion 100 (first remote shaft 111). On the other hand, the receiving surface 62a of the contact holder 62 that comes into contact with the distal end portion 112a of the first operating portion 112 is a curved surface with a radius of curvature r2, and the center is on the center line axis of the lever portion 100 (first remote shaft 111). Is preferred. Here, the radius of curvature r2 is set larger than the radius of curvature r1.

  Further, as shown in FIG. 5, the tip 112a of the first operating portion 112 is preferably a curved surface having a radius of curvature r3, and the center is preferably on the center line axis of the lever portion 100 (first remote shaft 111). . On the other hand, the receiving surface 62a of the contact holder 62 that comes into contact with the distal end portion 112a of the first operating portion 112 is a curved surface having a radius of curvature r4, and the center is on the center line axis J of the lever portion 100 (first remote shaft 111). It is preferable. Here, the radius of curvature r4 is set larger than the radius of curvature r3.

  The tip portion 112a of the first operating portion 112 described above is a curved surface having the curvature radii r1 and r3, but a spherical shape having the same r1 and r2 is preferable. On the other hand, the receiving surface 62a of the contact holder 62 is a curved surface having the curvature radii r2 and r4. However, it is preferable that r2 and r4 have the same spherical shape, and if this is the radius r, the radius r is the rotation center of the lever portion 100 ( The distance from the rotation center J) in FIG. 5 to the receiving surface 62a is set to a value greater than or equal to the distance. With this setting, the sliding between the front end portion 112a of the first operating portion 112 and the receiving surface 62a during the rotating operation of the lever portion 100 becomes smooth.

  The contact holder 62 is incorporated in the rear case, that is, on the upper side in FIG. 1 of the substrate 5 attached to the body 1 so as to be movable in the K direction in FIG. The receiving surface 62a is formed with a curved surface as described above at the portion of the first operating portion 112 that contacts the tip portion 112a. The contact holder 62 is always applied with a biasing force toward the first operating portion 112 by the spring 67, and the receiving surface 62a always performs the first operation while the contact holder 62 slides on the substrate 5 in the K direction shown in FIG. It is comprised so that it may contact | abut with the front-end | tip part 112a of the part 112. FIG.

  A movable contact 64 is held on the substrate 5 side of the contact holder 62. On the other hand, the fixed contact 65 is provided on the substrate 5, and the movable contact 64 is configured to contact and separate from the fixed contact 65 as the contact holder 62 moves to perform a switching operation. The movable contact 64 and the fixed contact 65 constitute a first switch 66 provided on the body 1 side. The first switch 66 functions as, for example, a light control switch that controls turning on / off of a small lamp (not shown).

  On the other hand, as shown in FIGS. 1 and 2, the second operation unit 122 is configured to be disposed on the rotation axis E of the lever main body 101 (lever unit 100) in FIG. 1. It should be noted that the distal end portion of the second operating portion 122 only needs to be disposed on at least the rotation axis E of the lever main body 101.

  A contact holder 72 is incorporated on the rear case 3, that is, on the upper side in FIG. 1 of the substrate 5 attached to the body 1 side so as to be movable in the vertical direction (direction perpendicular to the paper surface in FIG. 1). A fitting recess 73 is formed in the upper part of the contact holder 72, and the second operating portion 122 is fitted in the fitting recess 73. In the case of this configuration, when the second operation knob 120 is rotated, the second operating portion 122 also rotates, and the contact holder 72 is configured to reciprocate in the direction indicated by the arrow L as shown in FIG. .

  A movable contact 74 is held on the substrate 5 side of the contact holder 72. On the other hand, the fixed contact 75 is provided on the substrate 5, and the movable contact 74 is configured to be brought into contact with and separated from the fixed contact 75 as the contact holder 72 moves. The movable contact 74 and the fixed contact 75 constitute a second switch 76 provided on the body 1 side. The second switch 76 functions as, for example, a light control switch that controls turning on / off of a headlamp (not shown).

(Switch operation by operation knob)
When the first operation knob 110 is rotated, the first remote shaft 111 is converted into a linear movement in the longitudinal direction of the lever body 101 via the cam groove 110 a and the cam pin 113. Since the front end 112a of the first remote shaft 111 is always in contact with the receiving surface 62a of the contact holder 62, the switch operation of the first switch 66 can be performed. Further, when the second operation knob 120 is rotated, the second remote shaft 121 and the second operation unit 122 rotate integrally, and the contact holder 72 is reciprocated by the second operation unit 122, so that the switch of the second switch 76 Operation can be performed.

(Switch operation by lever body)
Although not shown, the body 1 has a third switch that switches according to the rotation of the bracket 6 and a switch that operates according to the rotation of the lever portion 100 in the directions of arrows F and G in FIG. And fourth and fifth switches are provided. The third switch functions as, for example, a switch for controlling a turn signal, the fourth switch functions as, for example, a switch for performing dimmer control of a headlamp, and the fifth switch is, for example, a switch for controlling passing. It functions as.

  When the lever main body 101 is rotated about the rotation axis E around the shaft portion 7 shown in FIG. 1, the lever main body 101 rotates together with the bracket 6 about the shaft portion 7 of the bracket 6. As a result, a third switch (not shown) is operated, and turn signal switch control is performed. The rotation operation of the lever main body 101 is also configured to give a feeling of moderation by a known moderation mechanism (not shown).

  Further, when the lever main body 101 is rotated in the direction (backward) indicated by the arrow F in FIG. 1, the lever main body 101 rotates in the direction of the arrow F around the shaft portion 12 shown in FIG. As a result, a fourth switch (not shown) is operated to perform dimmer control of the headlamp. At this time, the moderation piece 16 compresses the spring 15 from the central valley portion of the moderation wall 17, passes over the upper mountain portion in FIG. 1, and engages with the upper valley portion. By this operation, a sense of moderation is given to the operation of the lever main body 101 in the arrow F direction.

  When the lever body 101 is rotated in the direction of arrow G (forward), the lever body 101 rotates in the direction of arrow F around the shaft portion 12 shown in FIG. Thereby, a fifth switch (not shown) is operated to control the passing. At this time, the moderation piece 16 moves from the central valley portion of the moderation wall 17 to the lower peak portion in FIG. 1 while compressing the spring 15, and the resistance thereby causes the lever body 101 to rotate forward. A feeling of moderation is given to the operation.

In the case of this configuration, the lever body 101 is configured to automatically return when the operation by the user is released when the moderation feeling is given, and the spring 15 returns the moderation piece 16 to the original valley portion. ing. On the other hand, after the lever main body 101 is operated backward, the moderation piece 16 passes from the upper trough in FIG. 1 to the lower peak by manually returning the lever main body 101. And return to the original valley.
(Effects of the embodiment of the present invention)

  According to the embodiment of the present invention, the first remote shaft 111 is converted into a linear movement by the rotation operation of the first operation knob 110, and the switch operation of the first switch 66 is performed via the receiving surface 62a. In addition, the curved surfaces of the contact surface 62a of the contact holder 62 and the distal end portion 112a of the first remote shaft 111 that are in contact with each other are set so that sliding is smooth. Accordingly, the rotation of the lever main body 101 (lever portion 100) around the shaft portion 7 and the rotation around the shaft portion 12 shown in FIG. 2 also cause the receiving surface 62a and the tip portion 112a of the first remote shaft 111 to move. The shift of the contact position can be suppressed, and the switch operation accuracy of the first switch 66 does not decrease. Moreover, as FIG.1 and FIG.2 shows, the 2nd operation | movement part 122 is set as the structure arrange | positioned on the rotating shaft E of the lever main body 101 (lever part 100) in FIG. In this state, even if the lever main body 101 is rotated about the shaft portion 7 shown in FIG. 1, the second operation portion 122 is on the rotation axis E. Accordingly, the positional relationship between the second operation portion 122 and the fitting recess 73 is constant regardless of the rotation operation of the lever body 101, and the accuracy of the switch operation of the first switch 66 is reduced, or the lever operating angle is There is an effect that is not limited. In addition, since the first switch 66 and the second switch 76 are attached to the body 1 side, it is possible to provide a highly reliable and low-cost lever switch device with easy wiring and the like.

FIG. 1 is a cross-sectional view of a lever switch device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line AA including the rotation axis E of the lever main body in FIG. 3 is a cross-sectional view taken along line HH in FIG. FIG. 4 is a partial view of the lever body viewed from the B direction in FIG. FIG. 5 is a partial view seen from the direction C in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body 2 Front case 3 Rear case 4 Middle case 6 Bracket 5 Board | substrate 62, 72 Contact holder 62a Receiving surface 64, 74 Movable contact 65, 75 Fixed contact 66 1st switch 73 Fitting recessed part 76 2nd switch 100 Lever part 101 Lever Main body 110 First operation knob 111 First remote shaft 112 First operation portion 112a Tip portion 113 Cam pin 120 Second operation knob 121 Second remote shaft 122 Second operation portion

Claims (3)

A lever body supported rotatably on the body around a predetermined rotation center axis;
A first operation knob rotatably incorporated in the lever main body, a first remote shaft having a first operation portion that is converted into a linear movement by a rotation operation of the first operation knob and operates an operation target;
In the lever main body, the first remote shaft portion is coaxially structured to be rotatable and is operated to rotate an operation target by rotating the second operation knob at one end and the second operation knob at the other end. A second remote shaft having a second working part,
The contact surface of the operation component operated by the first operation unit is formed as a curved surface having a predetermined radius of curvature with the rotation center axis of the lever body as a center, and the rotation center of the second operation unit is A lever switch device provided on the rotation center axis of the lever body.   The lever switch device according to claim 1, wherein the operation target is a switch provided on the body side.   The distal end portion of the first operating portion has a spherical shape having a predetermined radius of curvature, and the contact surface of the operating component operated by the first operating portion is the spherical shape of the distal end portion of the first operating portion. The lever switch device according to claim 1, wherein the lever switch device has a spherical shape having a larger radius of curvature.

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