JP2019185889A - Turn lever switch device - Google Patents

Abstract

To obtain further satisfactory assemblability by eliminating the risk of damage of a cancel lever, etc., in the case of cancel jam.SOLUTION: The present invention relates to a turn lever switch device comprising: an operation lever; a holder which holds the operation lever in a freely rotatable manner; a housing; and a cancel lever including a first abutment body which is freely movable along a guide groove that the holder comprises, and a second abutment body which is attached to the first abutment body. A turn lever switch multidirectional input device is disclosed, in which the cancel lever further includes a first elastic body connecting the first abutment body and the second abutment body. While the operation lever is held at a tilt position and a return to an initial position of the operation lever is regulated, a turning force imparted from a cancel projection is transmitted through the second abutment body to the first abutment body, the first abutment body holds a state that the first abutment body is abutted to the holder, the second abutment body is moved to the outside of a turning trajectory by elastically deforming the first elastic body, and engagement with the cancel projection is cancelled.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a turn lever switch device.

  A cancel lever that moves forward and backward in the turning locus of a cancel protrusion that rotates with the steering shaft of the vehicle is engaged with the cancel protrusion when the vehicle turns right and left, and after the right and left turn, the cancel protrusion protrudes from the cancel protrusion according to the rotation of the steering shaft. A turn signal switch device is known in which an operation lever is returned to an initial position (neutral position) by releasing the engagement.

JP 2012-195103 A

  In general, after the vehicle turns right or left, the cancel lever engaged with the cancel protrusion of the cancel cam is disengaged by the return of the cancel cam that rotates in synchronization with the steering shaft. However, for example, when the vehicle is turned to the left after the left turn (the same applies to the right turn after the right turn), only the steering shaft will return to its original position while the control lever is held in the left turn tilt direction. An overload may act on the canceling protrusion and the canceling lever that are engaged. Such a state can be referred to as a cancel jam, but the cancel lever or the cancel protrusion may be damaged during the cancel jam.

  In order to prevent damage to the cancel lever, etc. during such a cancel jam, a cancel jam prevention mechanism having a spring with a high spring constant that does not function during normal right / left turn and functions only during cancel jam is provided on the operation lever. A turn lever switch device built into the base or the like is conceivable. However, when the turn lever switch device is manufactured while assembling the cancel jam prevention mechanism having a spring that functions only in the case of the cancel jam in this manner to the base of the operation lever, etc., it takes time and effort to assemble, There is a high possibility that deterioration will be a problem.

  The present disclosure provides a turn lever switch device that has no risk of damage to a cancel lever or the like during a cancel jam and that has better assemblability.

A turn lever switch device according to an aspect of the present disclosure is provided.
An operating lever;
A holding body that holds the operation lever rotatably between an initial position and a tilt position of the operation lever;
A housing in which the holding body is accommodated and has a plurality of cams corresponding to an initial position and a tilting position of the operation lever, and a part of the holding body is engaged with the cam;
A cancel lever having a first contact body movable along a guide groove provided in the holding body, and a second contact body attached to the first contact body, wherein the operation lever A cancel lever that allows the second abutment body to freely enter and exit a pivot locus of a cancel projection that pivots together with the steering shaft by the movement of the first abutment body according to the rotation;
In a state where the operation lever is in the tilting position and the second contact body enters the rotation locus, the second contact body comes into contact with the cancel protrusion, and rotational force is applied. The turning force is transmitted to the holding body through the second contact body and the first contact body, so that the holding body moves and engages with the cam corresponding to the initial position. Accordingly, the operation lever is returned to the initial position from the tilt position, the turn lever switch device,
The cancel lever further includes a first elastic body that connects the first contact body and the second contact body,
When the operation lever is held at the tilt position and the return of the operation lever to the initial position is restricted, the turning force applied from the cancel protrusion is transmitted through the second contact body. The first abutting body is transmitted to the first abutting body, and the first abutting body maintains a state in which the first abutting body abuts on the holding body. This is a turn lever switch device that is moved outside and is disengaged from the cancel protrusion.

  According to the present disclosure, it is possible to provide a turn lever switch device which has no fear of breakage of a cancel lever or the like in the case of a cancel jam and has a further excellent assembling property.

It is an external appearance perspective view of an example of the turn lever switch apparatus concerning an embodiment. It is the perspective view of a turn lever switch device in the state where the cancellation lever was in the initial position which removed the upper half of the case and looked at the inside of the case. It is a perspective view which shows the state which removed the holding body from the state shown in FIG. 2, and exposed the actuator. It is a perspective view of an example of a holding body. It is a perspective view of an example of a cancel lever. It is a perspective view explaining the function of the cancel lever when the operation lever is tilted in the right turn direction, and the engagement state between the cancel lever and the cancel protrusion. FIG. 7 is a perspective view for explaining the function of the cancel lever when a cancel jam has occurred while the operation lever is held following the state of FIG. 6.

  Hereinafter, a turn lever switch device according to an embodiment will be described with reference to the accompanying drawings. In the present specification and drawings, substantially the same constituent elements may be denoted by the same reference numerals and redundant description may be omitted.

[Embodiment]
<Overall configuration>
First, with reference to FIG. 1, the whole structure and usage example of the turn lever switch apparatus concerning embodiment are demonstrated. FIG. 1 is an external perspective view of an example of a turn lever switch device according to an embodiment. In FIG. 1, each side of the bottom surface of the substantially rectangular parallelepiped casing 20 is along the X1-X2 direction (X direction or X axis) and the Y1-Y2 direction (Y direction or Y axis), respectively, and Z1-Z2 The direction (Z direction or Z axis) is orthogonal to a plane formed by the X axis and the Y axis. The Z axis may be parallel to the gravity direction, but may be parallel to a direction other than the gravity direction depending on the situation where the multidirectional input device 100 is installed. Further, in the present specification, “front” means the Y1 direction, and means a direction toward a cancel cam (a cancel projection included) in the Y1 direction of the turn lever switch device 100.

  The turn lever switch device 100 is preferably applied to a vehicle such as an automobile, but may be applied to an aircraft, a railway, a ship, or the like. When the turn lever switch device 100 is mounted on an automobile, the turn lever switch device 100 is installed on a steering column that rotatably supports the steering wheel, and is linked to a steering shaft that rotates together with the turning operation of the steering wheel. . The turn lever switch device 100 can also be referred to as a turn signal switch.

  The turn lever switch device 100 includes a housing 20 and an operation lever 10 that has a base rotatably supported in the housing 20 and extends obliquely upward from one side surface of the housing 20. The housing 20 is formed by connecting the two halves 21 and 22 by bonding, welding, bolts, or the like. The housing 20 is formed by injection molding a resin material such as polybutylene terephthalate (PBT), or by aluminum die-casting an aluminum alloy or the like.

  The operation lever 10 has a substantially cylindrical shape so as to be easily operated with fingers, and has a linear shape that is appropriately bent in the axial direction. The operation lever 10 in the illustrated example includes two halves 11, 12 are connected by bonding or welding. The operation lever 10 is formed of a resin material such as ABS resin (ABS: Acrylonitrile Butadiene Styrene).

  As shown in FIG. 1, a linear engagement groove 21 a is formed in the upper half 21 that forms the housing 20. An engaging protrusion 41a that protrudes upward in a first contact body 41 (see FIG. 2) that forms the cancel lever 40 is movably engaged with the engaging groove 21a. Further, a second contact body 43 that forms a cancel lever 40 protrudes from the front (side surface in the Y1 direction) of the housing 20. As will be described in detail below, when the operating lever 10 is tilted from the initial position (neutral position) to the tilting position at the time of right turn or left turn, the engagement protrusion 41 a of the cancel lever 40 has the engagement groove 21 a of the housing 20. , While being guided by the movement, it is configured to reciprocate in two linear directions, a direction toward the cancellation protrusion CP and a direction away from the cancellation protrusion CP. Due to the linear reciprocation of the cancel lever 40, the second abutment body 43 located at the tip of the cancel lever 40 can similarly reciprocate linearly and is in front of the housing 20 in the Y1 direction. It becomes possible to go in and out of the rotation trajectory of the cancel protrusion of the cancel cam (not shown).

<Internal configuration of turn lever switch device>
Next, with reference to FIG. 2 thru | or FIG. 5, the internal structure of the turn lever switch apparatus which concerns on embodiment is demonstrated. Here, FIG. 2 is a perspective view of the turn lever switch device in a state in which the cancel lever is in the initial position when the upper half of the casing is removed and the inside of the casing is viewed. FIG. 3 is a perspective view showing a state where the holding body is removed from the state shown in FIG. 2 and the actuator is exposed. 4 is a perspective view of an example of a holding body, and FIG. 5 is a perspective view of an example of a cancel lever.

  In the housing 20, a holding body 30 to which the base portion of the operation lever 10 is rotatably attached is disposed, and the holding body 30 is also attached to the housing 20 so as to be freely rotatable.

  As shown in FIGS. 2 and 4, the holding body 30 includes an actuator holding case 31 in which the actuator is movably held, and a guide body 33 attached to the actuator holding case 31. The holding body 30 is rotatably attached to the housing 20 by fitting the rotation shaft 32 on the upper surface of the actuator holding case 31 to a bearing of the housing 20 (not shown).

  As shown in FIG. 4, a guide groove 36 is formed in the guide body 33 attached to the upper surface of the holding body 30, and a tip guide having a substantially triangular shape in plan view is provided in the Y1 direction in front of the guide groove 36. A portion 35 is provided. The triangular top portion of the tip guide portion 35 faces the guide groove 36, so that the guide groove 36 has a V-shaped line 35 a along the side surface of the tip guide portion 35.

  In the substantially V-shaped linear guide groove 36 in plan view, the center position corresponding to the V-shaped corner is the first position 36a, and the Y2 direction is the farthest from the cancel projection CP in the guide groove 36. Located behind. On the other hand, in the guide groove 36, the left and right end positions of the V-shape are the second positions 36b and 36c, and the guide groove 36 is located in the Y1 direction closest to the cancel projection CP in the guide groove 36.

  Returning to FIG. 2, a first contact body 41 forming a cancel lever 40 is movably engaged with the guide groove 36. Here, the configuration of the cancel lever 40 will be outlined with reference to FIG.

  As shown in FIG. 5, the cancel lever 40 includes a first contact body 41, a second contact body 43, a first elastic body 42 that connects the first contact body 41 and the second contact body 43, Have On the upper surface of the first abutment body 41, a first engagement protrusion 41a protrudes upward. On the other hand, on the lower surface of the first abutting body 41, a second engaging projection 41b projects downward. Further, both corners on the rear are pressing portions 41c.

  When an external force is applied to the second contact body 43, the first elastic body 42 is elastically deformed, so that the second elastic body 43 is a circumferential direction with the first contact body 41 as a fulcrum. Can be rotated.

  Returning to FIG. 2, the second engagement protrusion 41 b (see FIG. 5) of the first contact body 41 that forms the cancel lever 40 is movably fitted into the guide groove 36 of the guide body 33. In this assembled state, a second elastic body 37 attached to the housing 20 is attached to the first contact body 41, and the first contact body 41 is attached to the housing 20 by the second elastic body 37. Is biased in the Y1 direction in front of the.

  The second elastic body 37 in the illustrated example is formed of a torsion spring, and an end portion of the torsion spring is inserted into a spring insertion hole provided in the first contact body 41 and is fixed to the second elastic body 37.

  The turn lever switch device 100 shown in FIG. 2 shows a state where the cancel lever 40 is in the neutral position, which is the initial position. In this initial position, the first contact body 41 of the cancel lever 40 is in the first position 36a of the guide groove 36 shown in FIG.

  As shown in FIG. 3, the actuator 51 (an example of a part of the holding body) inside the holding body 30 is moved in the Y1 direction in front of the housing 20 by a third elastic body 52 formed of a compression coil spring. It is energized.

  A cam 23 into which the tip of the actuator 51 is fitted is formed on the side surface at the Y1 direction end portion in front of the housing 20. More specifically, the cam 23 is provided with three cams (an example of a plurality of cams) in a side-continuous manner. In the center of the cam 23, there is an initial position cam 23 a corresponding to the initial position of the operation lever 10. In the state of the cancel lever 40 shown in FIG. 2, inside the actuator holding case 31 forming the holding body 30, The actuator 51 is fitted into the initial position cam 23a in the manner shown in FIG.

  In FIG. 3, there is a tilt position cam 23b corresponding to the tilt position of the operation lever 10 when turning right in the X1 direction on the right side of the initial position cam 23a. When the operation lever 10 is tilted and operated in the R1 direction which is the right turn direction, the holding body 30 shown in FIG. 2 rotates in the R3 direction in the housing 20, and the actuator 51 inside the holding body 30 according to the rotation of the holding body 30. Also rotates in the R3 direction.

  The actuator 51 gets over the cam crest in the process of rotating in the R3 direction from the initial position cam 23a, and fits into the tilt position cam 23b when turning right. When the actuator 51 is fitted into the tilt position cam 23b when turning right, the operation lever 10 is held in the tilt direction when turning right, and turn signal lamps (front turn signal, rear turn signal) on the right side of the front and rear of the vehicle. ) Can be blinked.

  On the other hand, in the X2 direction on the left side of the initial position cam 23a, there is a tilt position cam 23c corresponding to the tilt position of the operation lever 10 when turning left. When the operation lever 10 is tilted and operated in the R2 direction, which is the left turn direction, the holding body 30 shown in FIG. 2 rotates in the R4 direction in the housing 20, and the actuator 51 inside the holding body 30 according to the rotation of the holding body 30. Also rotates in the R4 direction.

  The actuator 51 gets over the cam crest in the process of rotating in the R4 direction from the initial position cam 23a, and fits into the tilt position cam 23c when turning left. By fitting the actuator 51 into the tilt position cam 23c when turning left, the operation lever 10 is held in the tilt direction when turning left, and the turn signal lamps on the left side of the front and rear of the vehicle can blink. .

  The tip of the actuator 51 shown in FIG. 3 is opened on the end wall in the Y1 direction in front of the actuator holding case 31 in the state of being arranged inside the actuator holding case 31 forming the holding body 30 shown in FIG. It protrudes in the Y1 direction through the opening 34 that is present. The tip of the actuator 51 protruding forward in this way is fitted into the cam 23 of the housing 20 in the Y1 direction further forward of the opening 34, and holds the initial position and tilting position of the operation lever 10.

  Returning to FIG. 2, when the control lever 10 is tilted in the R1 direction when turning right, the holding body 30 is rotated in the R3 direction, so that the actuator 51 is fitted into the tilt position cam 23b when turning right. And the tilting posture of the operation lever 10 in the right turn direction is maintained. And according to rotation of the holding body 30, the guide body 33 also rotates in the R3 direction synchronously.

  In the state before the rotation of the guide body 33, the first contact body 41 is located at the first position 36a (see FIG. 4) of the guide groove 36. By rotating the guide body 33 in the R3 direction, the first position 36a and the second position 36b that is the right-turn tilt position are parallel or nearly parallel to the Y axis. Therefore, the first contact body 41 that is constantly urged in the Y1 direction by the torsion spring 37 becomes easy to move to the second position 36b, and moves from the first position 36a to the second position 36b in the R5 direction.

  On the other hand, at the time of left turn, when the operation lever 10 is tilted in the R2 direction, the holding body 30 rotates in the R4 direction, so that the actuator 51 is fitted into the tilt position cam 23c at the left turn. The posture of tilting the lever 10 in the left turn direction is maintained. And according to rotation of the holding body 30, the guide body 33 also rotates to R4 direction synchronously.

  In the state before the rotation of the guide body 33, the first contact body 41 is located at the first position 36 a of the guide groove 36. By rotating the guide body 33 in the R4 direction, the first position 36a and the second position 36c that is the left-turn tilt position are parallel or nearly parallel to the Y axis. Therefore, the first contact body 41 that is constantly urged in the Y1 direction by the torsion spring 37 is easily moved to the second position 36c, and is moved from the first position 36a to the second position 36c in the R6 direction.

  In addition, although illustration is omitted, in the state shown in FIG. 2, the second contact body 43 that forms the cancel lever 40 protrudes beyond the side surface in the Y1 direction in front of the housing 20. In FIG. 2, the second abutment body 43 protrudes from the upper half body 21 that has been removed, and the second abutment body 43 rotates when the second abutment body 43 rotates due to the deformation of the first elastic body 42. The opening of a predetermined dimension is opened so that it may not interfere with 2 contact body 43. FIG.

<Specific configuration and manufacturing method of cancel lever>
Next, with reference to FIG. 5 which has already been used for the description, the configuration of the cancel lever 40, the material for forming the cancel lever 40, and the manufacturing method will be described.

  The cancel lever 40 includes a first contact body 41, a second contact body 43, and a first elastic body 42 that connects the first contact body 41 and the second contact body 43. The first contact body 41 and the second contact body 43 are both formed of a resin material, and both may be formed of the same type of resin material or different types of resin materials. However, since the performance required for the first contact body 41 and the second contact body 43 is different from each other, it is preferable to form both of them from different resin materials.

  The first abutment body 41 including the first engagement protrusion 41 a and the second engagement protrusion 41 b slides inside the guide body 33, and each engagement protrusion is an engagement groove 21 a or guide groove of the housing 20. Slide along 36. Therefore, the first contact body 41 is preferably formed from a resin material having high rigidity, high wear resistance, and high dimensional accuracy. Examples of the resin material having such performance include reinforced POM (POM: Polyacetal), reinforced PBT (PBT: Polybutylene Terephthalate), and modified PPS (PPS: Polyphenylenesulfide).

  On the other hand, since the second engagement protrusion 41b does not have a problem such as wear during sliding unlike the first engagement protrusion 41a, the rigidity and hardness may be lower than those of the first engagement protrusion 41a. Since the second engaging protrusion 41b is a member that comes into contact with and engages with the cancel protrusion of the cancel cam, a material that does not easily generate an impact sound when colliding with the cancel protrusion is preferable. In addition, a resin material having good sliding properties with respect to the cancel protrusion is preferable. Examples of the resin material having such performance include PP (PP: Polypropylene) and PA (PA: Polyamide).

  A metal leaf spring is suitable for the first elastic body 42 that connects the first contact body 41 and the second contact body 43. As shown in FIG. 5, the leaf spring has a bending rigidity and a shear rigidity that are high with respect to an external force from the Z1 direction and the Z2 direction, which are the height directions, by using the wide direction of the leaf spring vertically. Further, by such vertical use, the deformation performance of the leaf spring can be sufficiently exhibited when the second contact body 43 is rotated in the R8 direction with the first contact body 41 as a fulcrum.

  The metal material of the leaf spring is preferably a metal material having durability against repeated bending in addition to a predetermined strength. Examples of the metal material having such performance include spring stainless steel, phosphor bronze, beryllium steel, titanium alloy, and the like.

  Further, the leaf spring 42 is bent at both ends, and has bent portions 42a and 42b. The bent portions 42a and 42b in the illustrated example are bent at 90 degrees, but may be bent at an angle of 90 degrees or more, for example, or may be bent into a curved shape. Thus, both ends of the leaf spring 42 have the bent portions 42a and 42b, and the bent portions 42a and 42b are embedded in the first contact body 41 and the second contact body 43. 42b functions as a shear key, and the connection strength between the first contact body 41 and the second contact body 43 is increased. Further, the connection between the leaf spring 42 and the first contact body 41 and the second contact body 43 does not depend only on the frictional force due to the anchor effect of the bent portions 42a and 42b. The length can be shortened as much as possible. Further, in addition to the bent portions 42a and 42b or in place of the bent portions 42a and 42b, an anchor hole is formed in the buried region of the leaf spring, and the anchor effect is exhibited by the resin entering the anchor hole, and the leaf spring. 42, the 1st contact body 41, and the 2nd contact body 43 may be integrated.

  An example of a manufacturing method of the cancel lever 40 shown in the drawing will be outlined. First, the bent portions 42a and 42b are bent with respect to the leaf spring, and the first elastic body 42 is manufactured. Next, of the first elastic body 42, the bent portion 42a side is accommodated in the cavity of the mold for forming the first abutting body 41, and the resin for forming the first abutting body is injection-molded, etc. The first elastic body 42 and the first contact body 41 are connected. Next, the bending portion 42b side of the first elastic body 42 is accommodated in the cavity of the mold for forming the second contact body 43, and the resin for forming the second contact body is injection-molded or the like to cancel. The lever 40 is manufactured.

<Canceling function of turn lever switch device>
Next, the cancel function of the turn lever switch device 100 will be described with reference to FIGS. Here, FIG. 6 is a perspective view for explaining the function of the cancel lever when the operation lever is tilted in the right-turn direction and the engagement state between the cancel lever and the cancel protrusion. FIG. 7 is a perspective view for explaining the function of the cancel lever when a cancel jam has occurred while the operation lever is held following the state of FIG.

  Here, as shown in FIG. 2, the operation lever 10 is tilted in the R1 direction, which is the right turn direction, from the state where the operation lever 10 is in the initial position, and after the vehicle turns right, the operation lever 10 is moved to the tilt position. Taking up the held state, the cancel function at that time will be described. Therefore, as shown in FIG. 2, the operation lever 10 is tilted in the R2 direction, which is the left turn direction, and the operation lever 10 is held in the tilt position after the vehicle turns left. Function is demonstrated.

  At the initial position (neutral position) of the operation lever 10 shown in FIG. 2, the tip of the actuator 51 inside the holding body 30 is fitted into the initial position cam 23a as shown in FIG. The one contact body 41 is at the first position 36 a of the guide groove 36. Therefore, in the initial position of the operation lever 10, the second contact body 43 is located outside the rotation locus of the cancel projection of the cancel cam in the Y1 direction in front of the turn lever switch device 100.

  When the operator turns the vehicle to the right from the state shown in FIG. 2, as shown in FIG. 6, the operation lever 10 is tilted in the R1 direction, which is the right turn direction. When the operation lever 10 is tilted in the R1 direction, the tip of the actuator 51 is disengaged from the initial position cam 23a (see FIG. 3), moves over the cam crest, and moves to the tilt position cam 23b when turning right. Fit (see FIG. 3). At this time, the holding body 30 rotates in synchronization with the movement of the actuator 51, and the guide body 33 of the holding body 30 rotates in the R3 direction, whereby the first position 36a and the second position that is the right-turn tilt position. The first abutment body 41 biased in the Y1 direction by the torsion spring 37 moves from the first position 36a to the second position 36b in the R5 direction by moving 36b parallel or substantially parallel to the Y axis. .

  When the first contact body 41 moves in the R5 direction and moves to the second position 36b of the guide groove 36, the second contact body 43 disposed in front of the cancel lever 40 rotates the cancel projection CP. Enter the inside of the movement trajectory T. In FIG. 6, the illustration of the cancel cam is omitted, and only the cancel protrusion CP that directly contacts the second contact body 43 is illustrated.

  When the vehicle is turned to the right and then the right turn is completed and the steering shaft is returned, the cancel cam also rotates in the S1 direction in synchronization with the steering shaft, and enters the rotation locus T of the cancel projection CP. The contact body 43 and the cancel protrusion CP abut (see FIG. 6).

  As the steering shaft is further returned from the state of FIG. 6, the second contact body 43 of the cancel lever 40 is pushed into the cancel protrusion CP, whereby the first contact body 41 is interposed via the first elastic body 42. Is driven, and the first contact body 41 rotates around the first engagement protrusion 41a. And the press part 41c located in the direction near the side wall of the guide body 33 among the corner | angular parts behind the 1st contact body 41 contact | abuts the side wall of the guide body 33, and the guide body 33 and the holding body 30 are made into R4 direction. Press on. As a result, the actuator 51 fitted in the tilt position cam 23b at the time of the right turn moves to the adjacent initial position cam 23a side beyond the cam crest and fits in the initial position cam 23a. When the actuator 51 is fitted into the initial position cam 23a, the holding body 30 and the operation lever 10 are rotated so as to return to the initial position. By returning the holding body 30 to the initial position, the cancel lever 40 is returned to the first position 36a of the guide groove 36, and the cancel lever 40 is retracted outside the rotation locus T of the cancel protrusion CP. That is, when the vehicle completes a right turn and moves straight, the operation lever 10 is automatically returned to the initial position.

  However, here, from the state of FIG. 6, when the operator holds the operation lever 10 at a position tilted in the right turn direction even after the vehicle has finished making a right turn (returning the operation lever 10 to the initial position). The canceling function of the turn lever switch device in the case where it is regulated will be described.

  As shown in FIG. 7, since the operating lever 10 is held at a position tilted in the right turn direction, the tip of the actuator 51 is positioned at the initial position cam even if the cancel projection CP further rotates in the S1 direction. The positions and postures of the holding body 30 and the guide body 33 are held in the state shown in FIG. Accordingly, the pressing portion 41c of the first contact body 41 forming the cancel lever 40 is in contact with the side wall of the guide body 33 of the holding body 30, and the second contact body 43 at the tip of the cancel lever 40 is The cancel projection CP that rotates with respect to the second contact body 43 is in a cancel jam state in which turning force is applied while maintaining the state of entering the inside of the rotation trajectory T.

  However, in this cancel jam state, when the second contact body 43 receives a predetermined turning force from the cancel protrusion CP, the turning force is transmitted to the first contact body 41 via the first elastic body 42. In addition, the pressing portion 41 c of the first contact body 41 holds the state in contact with the side wall of the guide body 33 included in the holding body 30. And the 1st elastic body 42 deform | transforms in the direction which received this rotational force, ie, the rotation direction of the cancellation protrusion CP. Due to the deformation of the first elastic body 42, the second abutment body 43 is displaced in the direction in which the second contact body 43 is pushed from the cancellation protrusion CP without excessively resisting the rotational force applied from the cancellation protrusion CP. Is released, and the cancel projection CP retreats outside the rotation trajectory T. That is, in the case of a jam, no overload occurs between the cancel lever 40 and the cancel protrusion CP, and the problem that the cancel lever 40 or the like is damaged does not occur.

  The strength of the first elastic body 42 is preferably set from the following viewpoints. First, the strength of the first elastic body 42 is set to a strength at which the operation lever 10 can be automatically canceled by rotating the cancel lever 40 by returning the steering shaft after the right turn as described above. More specifically, when the strength of the first elastic body 42 is pressed by the cancel protrusion CP, the first elastic body 42 is slightly elastically deformed to transmit a rotational force to the first abutting body 41, and the actuator The strength is set to be equal to or greater than the strength that can be moved from the cam crest by overcoming the engaging force with the tilt position cam 23b.

  Further, the strength of the first elastic body 42 is set so that the components in the driving force transmission path from the cancel protrusion CP to the holding body 30 in the cancel jam state where the holding body 30 is tilted as described above. Set the strength so that it will not be damaged by the pressing force. More specifically, when the pressing portion 41c of the first contact body 41 and the side wall of the guide body 33 are in contact with each other, the first elastic body 42 is subjected to plastic deformation or the like on the parts in the driving force transmission path. Prior to the occurrence and destruction, the first elastic body 42 is greatly elastically deformed and the second contact body 43 can be retracted to the outside of the rotation trajectory T of the cancel projection CP (strength 2). ) Set as follows.

  That is, by setting the strength of the first elastic body 42 within the range of strength 1 and strength 2 described above, it is possible to satisfy all the various conditions described above.

  As is clear from FIG. 7, the cancel lever 40 is a member that is attached above the holding body 30, and no laborious assembly work such as incorporating a cancel mechanism into the base of the operation lever 10 is required. Therefore, according to the turn lever switch device 100 shown in the figure, good assemblability can be obtained. The cancel lever 40 has a simple configuration in which a second contact body 43 that directly contacts the cancel protrusion CP is attached to the first contact body 41 via a first elastic body 42. In this simple configuration, the first elastic body 42 is elastically deformed by the rotational force applied from the cancel protrusion CP, and the second contact body 43 is smoothly withdrawn to the outside of the rotation trajectory T to cancel. It is possible to effectively eliminate the breakage of the cancel lever 40 and the like at the time of jam.

  Note that other embodiments in which other components are combined with the configurations described in the above embodiments may be used, and the present disclosure is not limited to the configurations shown here. . This point can be changed without departing from the spirit of the present disclosure, and can be appropriately determined according to the application form.

DESCRIPTION OF SYMBOLS 10 Operation lever 20 Housing | casing 21a Engaging groove 30 Holding body 31 Actuator holding case 32 Rotating shaft 33 Guide body 34 Opening 35 Tip guide part 35a V-shaped line 36 Guide groove 36a 1st position 36b 2nd position (right-folding tilt position)
36c 2nd position (left turn tilt position)
37 Second elastic body (torsion spring)
40 cancel lever 41 first contact body 41a first engagement protrusion 41b second engagement protrusion 41c pressing part 42 first elastic body (leaf spring)
42a, 42b Bending part (shear key)
43 2nd contact body 51 Actuator 52 3rd elastic body (compression coil spring)
100 Turn lever switch device T Rotation locus

Claims (8)

An operating lever;
A holding body that holds the operation lever rotatably between an initial position and a tilt position of the operation lever;
A housing in which the holding body is accommodated and has a plurality of cams corresponding to an initial position and a tilting position of the operation lever, and a part of the holding body is engaged with the cam;
A cancel lever having a first contact body movable along a guide groove provided in the holding body, and a second contact body attached to the first contact body, wherein the operation lever A cancel lever that allows the second abutment body to freely enter and exit a pivot locus of a cancel projection that pivots together with the steering shaft by the movement of the first abutment body according to the rotation;
In a state where the operation lever is in the tilting position and the second contact body enters the rotation locus, the second contact body comes into contact with the cancel protrusion, and rotational force is applied. The turning force is transmitted to the holding body through the second contact body and the first contact body, so that the holding body moves and engages with the cam corresponding to the initial position. Accordingly, the operation lever is returned to the initial position from the tilt position, the turn lever switch device,
The cancel lever further includes a first elastic body that connects the first contact body and the second contact body,
When the operation lever is held at the tilt position and the return of the operation lever to the initial position is restricted, the turning force applied from the cancel protrusion is transmitted through the second contact body. The first abutting body is transmitted to the first abutting body, and the first abutting body maintains a state in which the first abutting body abuts on the holding body. A turn lever switch device that is moved to the outside of the lever and disengaged from the cancel protrusion.   The turn lever switch device according to claim 1, wherein the cancel lever is urged in a direction toward the cancel protrusion by a second elastic body attached to the housing.   The said holding body has an actuator, This actuator is urged | biased by the direction which goes to the said cam by the 3rd elastic body, The edge part of this actuator is engaged with this cam. The turn lever switch device described. The holding body has a guide body provided with a guide groove through which the first contact body moves,
The guide groove is a continuous groove that connects a first position corresponding to the initial position and a second position corresponding to the tilt position, and the first position is a position farthest from the cancel protrusion, The turn lever switch device according to any one of claims 1 to 3, wherein the second position is a position closest to the cancel protrusion. The first elastic body has an engaging protrusion;
The housing has a linear engagement groove into which the engagement protrusion is movably engaged,
The linear engagement groove restricts movement of the first abutment body in two linear directions, a direction toward the cancellation protrusion and a direction away from the cancellation protrusion. The turn lever switch device according to claim 1.   The said 1st contact body and the said 2nd contact body are formed from the same kind or different kind of resin material, The said 1st elastic body is formed from metal leaf | plate springs, The Claim 1 thru | or 5 The turn lever switch apparatus as described in any one of Claims. The first contact body and the second contact body are formed of different resin materials,
The turn lever switch device according to claim 6, wherein the first contact body has higher rigidity or hardness and higher wear resistance than the second contact body.   The both ends of the leaf spring have bent portions, and the bent portions at both ends are respectively embedded in the first contact body and the second contact body to form a shear key. Or the turn lever switch apparatus of 7.