JP2003072462A - Turn signal switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive turn signal switch being compact in the depth direction and having superior assembling workability. SOLUTION: In this turn signal switch, an upright wall 2e of a housing H is provided with a shaft part 2f projecting from a face opposite to a formation face of a cam face 10, a basic part 5b of a lever member 5 is extended along the upright wall 2e, and rotatably supported by the shaft part 2f, a first engagement part 5d mounted on one end side of the basic part 5b is engaged with a cancel lever 4, the cancel lever 4 moves the first engagement part 5d when the cancel lever 4 is rotated, the lever member 5 is rotated on the shaft part 2f by the movement of the first engagement part 5d, and an operation lever 3 is returned to a neutral position from an operating position through a second engagement part 5e mounted on the other end side of the basic part 5b, by the rotating operation of the lever member 5, whereby the lever member 5 us mounted in an upright state to the cancel lever 4, the device can be diminished in the depth direction in comparison with a conventional switch, and the compact turn signal switch can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turn signal switch device attached to a steering column or the like of an automobile and used as a direction indicator.

[0002]

2. Description of the Related Art A conventional turn signal switch device will be described. FIG. 9 is an exploded perspective view of the conventional turn signal switch device, FIG. 10 is a vertical cross-sectional view of a main part of the conventional turn signal switch device, and FIG. 13 is a plan view showing a state in which an operating lever and the like are incorporated in a first case according to a conventional turn signal switch device, and FIG. 12 is an operation explanatory diagram showing a state in a neutral position according to the conventional turn signal switch device, FIG. FIG. 14 is an operation explanatory diagram showing a state of an operating position according to the conventional turn signal switch device, and FIG. 14 is an explanatory diagram showing an operating state of the conventional turn signal switch device.

Next, the structure of a conventional turn signal switch device will be described with reference to FIGS. 9 to 14. The first and second cases 101 and 102 formed of synthetic resin are
They are integrated by using a means such as snap coupling, and are fixed to a stator member such as a column cover or a combination switch (not shown). A V-shaped cam surface 110 is provided on the inner surface of the first case 101, and a housing is formed by the first and second cases 101 and 102.

A printed board 111 is attached to the bottom surface of the first case 101, and a pair of slider receivers 112 and 113 holding movable contacts 114 and 115, respectively, are mounted on the printed board 111. It is slidably arranged. And, on this printed circuit board 111,
A fixed contact (not shown) is formed to contact and separate from the movable contacts 114 and 115. The fixed contact and the movable contact 114 form a first switch S3, and the fixed contact and the movable contact 115 form a second switch. S4 is formed.

The first switch S3 is arranged in the rear part, and the second switch S4 is arranged in the front part with a large distance from the second switch S3. Then, the one slider receiver 112 is driven by the turning operation of the operation lever 103 described later to the left turn or the right turn direction, and the not-shown left turn or right turn lamp blinks. And the other slider receiver 113
Is driven by a vertical swinging operation of an operation lever 103, which will be described later, so that a beam lamp (not shown) performs a lighting operation.

The first lever member 104, which is a substantially flat plate-shaped cancel lever made of a synthetic resin molded product, includes
The first lever member 1 has second elongated holes 104a and 104b and a cam portion 104c having a semicircular cross section.
In 04, a protrusion (not shown) provided on the second case 102 is inserted into the first elongated hole 104a and slidable along the protrusion and rotatable.

A flat plate-shaped second lever member 105 made of a synthetic resin is formed with a hole 105a provided at the center thereof.
And first and second openings 105b and 105c provided on both sides of the hole 105a, and a connecting pin 105d provided on one end side. The second lever member 105 is superposed on the first lever member 104 with the connecting pin 105d inserted into the second elongated hole 104b and the cam portion 104c inserted into the first opening 105b. Has been done. At this time, although not shown here, the spindle provided in the second case 102 is inserted into the hole 105a,
The second lever member 105 is rotatable around the support shaft.

The torsion coil spring 106 is used in the second case 10.
The first lever member 104 is elastically biased in the longitudinal direction by being attached to the first lever member 104. The operating lever 103 is rotatably held by the first and second cases 101 and 102, and includes an operating member 107, a holder 108, a movable member 109, and the like.

Actuating member 107 made of a synthetic resin molded product
Has a concave portion 107a provided on both side surfaces and a protrusion 107b projecting downward. This actuating member 107 has its front end fixed to the base portion of the operating lever 103 and slides the protrusion 107b. The slider receiver 113 is engaged with the slave receiver 113, and the slider receiver 113 moves in accordance with the movement of the actuating member 107, and the second switch S4 is operated.

A holder 108 made of a synthetic resin molded product.
Is a pair of protruding pieces 108a extending forward from both side surfaces,
The protrusion 108b is provided inside the protrusion 108a, and the operating member 107 is provided between the pair of protrusions 108a.
And the projection 108b is snap-fitted into the recess 107a, so that the actuating member 107 is attached to the holder 108 so as to be swingable in the vertical direction.

Further, the holder 108 has a chevron-shaped cam surface 108c provided at the tip, a pair of support shafts 108d and 108e provided on the upper and lower surfaces, and a projection 1 provided on the lower surface.
08f and. In this holder 108, each of the support shafts 108d and 108e has the first and second case 1
01 and 102 are fitted into the recesses (not shown) and are rotatably attached, and the projection 108f engages with the slider receiving body 112 (see FIG. 10) to move with the movement of the holder 108. The slider receiver 112 is moved so that the first switch S3 is operated.

Movable member 109 made of synthetic resin molding
Has a leg portion 109a and a driving portion 109b. This movable member 109 is inserted into an opening portion 108g formed in the holder 108 for the leg portion 109a, and the leg portion 109a is snap-fitted to the holder 108 so that the holder It is swingably attached to 108. Then, the drive unit 109b
The drive unit 1 extends forward along the upper surface of the holder 8.
The receiving portion 109c provided at 09b is in a state of being inserted into the second opening portion 105c of the second lever member 105.

Further, as shown in FIG.
A first driving body 124 made of a synthetic resin molded product is slidably housed in the rear end of the first driving body 124. The leading end of the first driving body 124 is the first driving body 124.
And the leg portion 109a of the movable member 109 are pressed against the cam surface 110 of the first case 101 by the repulsive force of the spring 125, and the leg portion 109a of the movable member 109 is attached to the inner surface of the holder 108. It is in a pressed state.

As described above, the operating member 107 fixed to the operating lever 103 and the holder 108 are provided in the recess 10
7a and the protrusion 108b are rotatably connected at the fitting portion, and the holder 108 and the first and second cases 10 are connected together.
Reference numerals 1 and 102 denote fitting portions of the support shafts 108d and 108e, which are rotatably connected to each other.

Therefore, when the operation lever 103 is rotated to the left turn or right turn instruction position, the operation lever 103, the actuating member 107, and the holder 108 are supported by the spindle 1.
08d and 108e are rotated in the arrow A direction (see FIG. 9) about the axes, but when the operation lever 103 is rotated in the arrow B direction orthogonal to the indicated position, the operation lever 103 and the operating member 107 are moved to the holder 108. On the other hand, both protrusions 108
Rotate by a predetermined angle in the vertical direction with the straight line connecting b as the rotation axis.

Further, as shown in FIG. 10, the operating member 10
A second driving body 127 is slidably held at the rear end portion of the spring 7 via a spring 126, and the tip end portion of the second driving body 127 has a cam surface 108h formed inside the holder 108. Is pressed against. And the cam surface 10
The sliding direction of the second driving body 127 moving above 8h is orthogonal to the first driving body 124, and when the operating lever 103 is rotated in the arrow B direction (see FIG. 9), the operating member is moved. 1
07 rotates and the second driving body 127 moves the cam surface 108h.
It is designed to slide over.

Next, the operation of the conventional turn signal switch device will be described. When the operation lever 103 is in the neutral position, the first driving body 124 is located in the central valley portion of the cam surface 110, and The cam portion 104c of the first lever member 104 is in contact with the apex of the cam surface 108c of the holder 108, and as shown in FIG. 12, the first lever member 104 resists the biasing force of the torsion coil spring 106. Is moving forward. Therefore, the contact portion 104d of the first lever member 104 is located outside the rotation locus of the cancel protrusion 128 that rotates in conjunction with the handle, and even if the handle is rotated in this state, the cancel protrusion 128 is The operation lever 103 is maintained in the neutral position without contacting the contact portion 104d of the first lever member 104.

Next, when the operating lever 103 is rotated from this neutral position in either the arrow A1 direction or the arrow A2 direction in FIG. 11, the tip end portion of the first driving body 124 becomes
It slides on the cam surface 110, is locked by the lock portion 110b, and produces a click feeling when riding over the slope of the cam surface 110.

Here, for example, the operation lever 103 is shown in FIG.
1 rotates in the direction of arrow A2, the holder 108 and the movable member 109 also rotate in the same direction in conjunction with the operating lever 103, and the top of the cam surface 108c accordingly moves the top of the cam surface 108c.
As shown in FIG. 13, the first lever member 104 is retracted along the longitudinal direction of the first and second elongated holes 104a and 104b due to the elastic force of the arm portion of the torsion coil spring 106, as shown in FIG. The contact portion 104d advances into the rotation locus of the cancel protrusion 128 after the operation lever 103 (toward the rear side).

Further, as the operating lever 103 rotates in the direction of arrow A2, the receiving portion 109c of the movable member 109 held in the stable position of the holder 108 is located inside the second opening 105c of the second lever member 105. 13 and the receiving portion 109c comes into contact with one curved portion 105e of the second opening 105c, as shown in FIG. Furthermore, the operating lever 1
With the rotation of 03 in the direction of the arrow A2, the protrusion 108f of the holder 108 drives the one slider receiver 112, so that the switch S3 is operated to switch the contacts, and the right turn (not shown) is used. The lamp lights up.

When the handle is rotated in the direction of arrow C (reverse direction) in the right turn state shown in FIG. 13, the cancel projection 128 is attached to the contact portion 104d of the first lever member 104 during the return operation. bump into. As a result, the first
Of the first lever member 10 rotates in a clockwise direction around a shaft portion (not shown).
Since the second lever member 105 connected to No. 4 rotates clockwise around the shaft portion, the second lever member 1
The second opening 105c of 05 is rotationally displaced upward in FIG.

As a result, the curved portion 105e of the second opening 105c presses the receiving portion 109c of the movable member 109 upward, and this pressing force is transmitted to the holder 108 via the movable member 109, so the holder 108 The leading end of the first driving body 124 held by is released from the lock portion 110b of the cam surface 110 and moves to the central valley portion 110a,
Operation lever 103 and first and second lever members 104, 1
05 automatically returns to the neutral position shown in FIG.

Further, in the right turn state shown in FIG. 13, when some force is applied to the operation lever 103 to prevent the automatic return, for example, when the handle is rotated in the opposite direction while pressing the operation lever 103, the above-mentioned operation is performed. As described above, the second lever member 105 tries to rotate in the clockwise direction around the shaft portion, but since the operation lever 103 is pressed, the holder 108 does not rotate and the second opening portion 105c is not rotated.
An excessive load is generated in the contact portion between the receiving portion 109c and the receiving portion 109c.

When such an overload occurs, the receiving portion 109c is pressed along the curved portion 105e by the partial pressure in the rotation direction of the second lever member 105, as shown in FIG. Against the repulsive force of the spring 125, swings from the stable position shown by the chain double-dashed line in FIG. 14 to the retracted position shown by the solid line, so that the first and second lever members 104, 105 move to the receiving portion 109c. It can rotate without being hindered by. Then, when the cancel protrusion 128 passes through the contact portion 104d of the first lever member 104, the movable member 109 automatically returns from the retracted position to the stable position by the repulsive force of the spring 125, and thus the right turn state shown in FIG. Maintained at.

On the other hand, when the operation lever 103 is rotated in the direction orthogonal to the designated position (the direction of arrow B in FIG. 9), the operation lever 103 and the actuating member 7 are moved to the first and second cases 101, 10.
2 and the holder 108 are rotated by a predetermined angle in a vertical direction with a straight line connecting the protrusion 108b as a rotation axis, and accordingly, the tip end portion of the second driving body 127 slides on the cam surface 108h of the holder 108. A click feeling is generated when getting over the cam surface 8h. Then, the operation lever 103
As the projection 107b of the actuating member 107 drives the other slider receiver 113, the switch S4
Is performed to switch contacts, and beam switching and passing operations are performed.

[0026]

Since the conventional turn signal switch device has a configuration in which the cancel lever 104 and the lever member 105 are superposed on each other in a plane, the arrangement becomes long, and therefore the large size in the depth direction. There is a problem that becomes. Further, the holder 108 and the movable member 109 are required to return the operation lever 103,
There is a problem that not only the number of parts increases but the assembling property deteriorates and the cost increases, but also a storage space for the movable member 109 is required and the size becomes large.

Therefore, an object of the present invention is to provide an inexpensive turn signal switch device which is small in the depth direction and is easy to assemble.

[0028]

As a first solving means for solving the above-mentioned problems, a housing having an upright wall provided with a first cam surface, and an operation lever rotatably supported by the housing. A first driving body that cooperates with the first cam surface to hold the operation lever in a neutral position and an operating position, and a first driving body that biases the first driving body toward the first cam surface. A spring, a cancel lever that is rotated by contacting a cancel protrusion on the handle side, and a lever member that transmits the rotational motion of the cancel lever to the operation lever and returns the operation lever from an operating position to a neutral position. The upright wall is provided with a shaft portion projecting from a surface opposite to the surface on which the cam surface is formed, and the lever member extends along the upright wall and is rotatably supported by the shaft portion. Base , Provided on one end side of the base portion,
The cancel lever has a first engaging portion engaged with the cancel lever and a second engaging portion provided on the other end side of the base portion, and when the cancel lever rotates, the cancel lever has the first engaging portion. The lever member is rotated about the shaft portion by the movement of the first engagement portion while the joint portion is moved, and the operation of the lever member is performed by the rotation operation of the lever member via the second engagement portion. The lever is configured to return from the operating position to the neutral position. With this configuration,
With the configuration in which the lever member is arranged upright with respect to the cancel lever, the turn signal switch device can be provided in a smaller size in the depth direction than in the conventional case, and a small turn signal switch device can be provided.

As a second solving means, the lever member is arranged so as to cross the upright wall in the vertical direction, and the first engaging portion is located below and engages with the cancel lever. At the same time, the second engaging portion is located above. With this configuration, the first lever member
The second engaging portion can be separated into the upper and lower parts, so that a simple structure and reliable operation can be obtained.

As a third solving means, the cancel lever has first and second elongated holes, and the first engaging portion is inserted into the first elongated hole. A protrusion extending from the upright wall is inserted into the second elongated hole, the cancel lever is slidable in the first and second elongated hole forming directions, and the protrusion is centered around the protrusion. It has a rotatable structure. With this configuration, the lever member and the upright wall can be easily engaged with the cancel lever, the assemblability is good, the space factor is good, and the size can be reduced.

Further, as a fourth solution means, there is provided a holder that is rotatably supported by the housing in conjunction with the operation lever, and the holder includes the first driving body and the first spring. While being held, the holder is movable to a neutral position and an operating position, the holder includes a protrusion capable of engaging with the second engaging portion, and a first arm portion for operating the first switch. When the holder is rotated to the operating position in conjunction with the rotation operation of the operation lever, the first switch is operated by the first arm portion, and the cancel lever is rotated. , The second engaging portion of the lever member rotated by the cancel lever hooks the protrusion to rotate the holder, and the holder and the operating lever return from the operating position to the neutral position. It was with the structure. With this configuration, the lever member returns the holder from the operating position to the neutral position, so that the conventional movable member 109 is not necessary, the number of parts can be reduced, and the assemblability is good and the cost is low.
Moreover, a small one can be obtained. Also, the holder is the second
It suffices to provide a protrusion that can be engaged with the engaging portion, and the structure can be simplified, and since the holder operates the first switch, the operation as a direction indicator can be reliably performed. .

As a fifth solution, one of the holder and the cancel lever is provided with a cam portion, and the other is provided with a receiving portion that can be engaged with and disengaged from the cam portion. When the holder is rotated by the torsion coil spring and the operation lever is rotated, the engagement between the cam portion and the receiving portion is disengaged, and the cancel lever is rotated by the torsion coil spring. When the cancel lever rotates, the holder returns from the operating position to the neutral position, the cam portion and the receiving portion return to the engaged state, and the cancel lever resists the torsion coil spring. Thus, the cancel protrusion is located outside the rotation locus. With this configuration, engagement / disengagement between the cancel lever and the holder can be performed by the cam portion and the receiving portion, the configuration is simple, and the torsion coil spring ensures reliable operation.

As a sixth means for solving the problems, a second driving body which cooperates with a second cam surface provided on the holder to hold the operation lever at the neutral position and the operating position, and the second driving body. A second spring for urging the driving body toward the second cam surface; and an operating member rotatable in a direction orthogonal to the rotational direction of the holder and interlocking with the operation lever, The operation member includes the second drive body and the second drive body.
A spring is retained to move the actuating member to a neutral position and an operative position, and the actuating member includes a second
A second arm portion for operating the switch, and the operating member pivots to an operating position in conjunction with the pivotal movement of the operating lever, and the second arm portion causes the second switch to operate. Is operated, and when the rotation of the operation lever is released,
The operating member and the operating lever are automatically returned from the operating position to the neutral position. With this configuration, the second switch can be applied to beam switching and passing operations, and a multifunctional switch can be obtained.

As a seventh means for solving the problems,
The second switches are arranged side by side.
With this configuration, the first and second switches can be arranged in a small space, and a small depth and a small size can be obtained.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Referring to the drawings of a turn signal switch device of the present invention, FIG. 1 is an exploded perspective view of a main part of the turn signal switch device of the present invention, and FIG. 2 is a view of the turn signal switch device of the present invention. 3 is a vertical cross-sectional view of a portion, FIG. 3 is a plan view showing a state in which the first case is cut off, and FIG. 4 is a state in which a main portion is cut off, according to the turn signal switch device of the present invention. 5 is a plan view showing the operation of the turn signal switch device of the present invention, and FIG. 5 is an operation explanatory view showing the state of the cancel lever in the neutral position. FIG. 8 is an operation explanatory diagram showing the state of the cancel lever at the operating position according to the turn signal switch device of the present invention, and FIG. Relates to a turn signal switch device of the present invention is an operation explanatory view showing the state of the holder in the operating position.

Next, the structure of the turn signal switch device of the present invention will be described with reference to FIGS. 1 to 8. The first and second cases 1 and 2 made of synthetic resin moldings are snap-connected or the like. And is fixed to a stator member such as a column cover or a combination switch (not shown). The first case 1 has a box shape with an open front surface, and an upper surface plate 1 provided with a holding portion 1a formed of a hole.
b, a pair of side surface plates 1c extending downward from the side portions of the upper surface plate 1b, and a rear surface plate 1d extending downward from the rear of the upper surface plate 1b.
And a notch 1e provided in the lower part of the rear plate 1d.

The second case 2 is composed of a plate-shaped base portion 2a serving as a bottom wall, a rectangular hole 2b provided at the center of the base portion 2a, and a hole provided on the front side of the base portion 2a. Holding part 2c and protrusion 2 provided at the corner of the rear part of base 2a
d, an upright wall 2e formed so as to straddle the hole 2b in an upright state from the base 2a, and a cam surface 1 provided on the front side of the upright wall 2e and having a valley portion 10a and a lock portion 10b.
0, a cylindrical shaft portion 2f provided on the rear surface side of the upright wall 2e on the side opposite to the surface on which the cam surface 10 is formed, and a protrusion 2g provided so as to project into the hole 2b from the lower central portion of the upright wall 2e. Have and.

The first and second cases 1 and 2 are the second
The case 2 is assembled in a state of being located at the lower part, and the housing H is constituted by the first and second cases 1 and 2. Further, when the first and second cases 1 and 2 are combined, the holding portions 1a and 2c are vertically opposed to each other.

A printed circuit board 11 is attached to the bottom surface of the second case 2, and a pair of slider receivers 12 and 13 holding movable contacts 14 and 15 are mounted on the printed circuit board 11. It is slidably arranged. The movable contacts 14 and 15 are provided on the printed circuit board 11.
A fixed contact (not shown) that contacts and separates from the fixed contact and the movable contact 14 forms a first switch S1 and the fixed contact and the movable contact 15 form a second switch S2. Has been done. Further, the first switch S1 is arranged in the rear part, the second switch S2 is arranged in the front part, and the first and second switches S1, S2 are arranged adjacent to each other. There is.

One of the slider receivers 12 is driven by the turning operation of the operation lever 3 to be turned leftward or rightward, which will be described later, so that the unillustrated left turn or right turn lamp blinks. In addition, the other slider receiver 13 is driven by the vertical swinging operation of the operation lever 3 described later, and the beam lamp (not shown) is turned on. .

The first lever member 4, which is a substantially plate-shaped cancel lever made of a synthetic resin molded product, includes the first and second
The long holes 4a and 4b and the cam portion 4 having a semicircular cross section
c, an L-shaped hooking portion 4d provided in the lower portion, and an abutting portion 4e located at the rear end portion. This first lever member 4 has a part of the second case 2. The protrusion 2g arranged on the base 2a and provided on the second case 2 has the second elongated hole 4b.
The first lever member 4 is slidable along the protrusion 2g and is rotatable as it is inserted into. Then, when the first lever member 4 is attached,
The contact portion 4e is in a state of protruding rearward from the cutout portion 1e of the first case 1.

The flat plate-shaped second lever member 5 made of a synthetic resin molded product is bent backward from a flat plate-shaped base portion 5b having a hole 5a in the center and a lower portion which is one end side of the base portion 5b. A bent part 5c, a first engaging part 5d formed of a convex part projecting downward from the bent part 5c, and a second fork-shaped member that is bent forward from an upper part that is the other end side of the base part 5b. It has a joint 5e. Then, in the second lever member 5, the base portion 5b is arranged along the upright wall 2e, the shaft portion 2f is inserted into the hole 5a, and
The engaging portion 5d is inserted into the first elongated hole 4a of the first lever member 4 and attached in an engaged state.

When the second lever member 5 is attached, the second lever member 5 is upright with respect to the first lever member 4, and the first engaging portion 5d projects downward. At the same time, the second engagement portion 5e projects beyond the upper portion of the upright wall 2e toward the front side, and the base portion 5b is arranged in a state of vertically crossing the upright wall 2e. Then, when the first lever member 4 rotates about the protrusion 2g, the first engaging portion 5d is hooked and moved by the first lever member 4, and as a result, the second lever member 5 is It rotates about the portion 2f, and as a result, the second engaging portion 5e also rotates.

The torsion coil spring 6 has a winding portion 6a and arms 6b and 6c extending from both ends of the winding portion 6a. The torsion coil spring 6 has a protrusion 2d inserted into the winding portion 6a. At the same time, the one arm portion 6b is elastically contacted with the upright wall 2e, and the other arm portion 6c is hooked on the hooking portion 4d of the first lever member 4 and attached. The torsion coil spring 6 constantly elastically biases the first lever member 4 in the rearward direction in the longitudinal direction.

The operating lever 3 includes the first and second cases 1 and 2.
In addition to being rotatably held, it has an operating member 7, a holder 8 and the like. The operating member 7 made of a synthetic resin molding has a recess 7a provided on both side surfaces, an arm portion 7b projecting downward, and a storage portion 7c made of a recess provided on the rear surface side. The front end portion of the member 7 is fixed to the base portion of the operation lever 3, and the projection 7b engages with the slider receiving body 13, so that the slider receiving body 13 moves as the operating member 7 moves. The second switch S2 is moved and operated.

The holder 8 made of a synthetic resin molding is
A pair of protruding pieces 8a extending forward from both side surfaces and a protruding piece 8a
a pair of protrusions 8b provided inside the a, a pair of protrusions 8c protruding forward from above and below between the protrusions 8a, and a protrusion 8d provided at a free end portion of the protrusions 8c; The cam surface 8e (see FIG. 2) provided on the bottom surrounded by the projecting pieces 8a and 8c, the projecting portion 8f formed by the projecting ridge portion provided on the upper portion, and the recessed portion provided on the rear surface side. It has a storage portion 8g, a receiving portion 8h provided so as to project downward from the rear side of the lower portion, and an arm portion 8j provided so as to project downward from the central portion of the lower portion.

The actuating member 7 is disposed between the two pairs of projecting pieces 8a and 8c, and the projection 8 is formed in the recess 7a.
b is snap-fitted, and the operating member 7 is attached to the holder 8 so as to be swingable in the vertical direction.
In addition, in this holder 8, each of the protrusions 8d is
The second case 1 and the second case 2 are fitted into the holding portions 1a and 2c and are rotatably attached, and the arm portions 8j are engaged with the slider receiver 12 to slide along with the movement of the holder 8. The pendulum receiver 12 is movable and the first switch S1 is operated.

Further, as shown in FIG. 2, the storage portion 8g at the rear end portion of the holder 8 is provided with a first synthetic resin molded product.
The driving body 24 of the first driving body 24 is slidably housed, and the tip end portion of the first driving body 24 is moved to the cam surface 10 provided on the upright wall 2e by the repulsive force of the spring 25 housed in the housing portion 8g. Pressed.

As described above, the actuating member 7 fixed to the operating lever 3 and the holder 8 are rotatably connected at the fitting portion of the recess 7a and the projection 8b, and the holder 8 and the first and second parts. The second cases 1 and 2 are the projection 8d and the holding portion 1.
The fitting portions a and 2c are rotatably connected.

Therefore, when the operation lever 3 is rotated to the instructed position for left turn or right turn, the operation lever 3, the actuating member 7 and the holder 8 rotate in the direction of arrow A (FIG. 3) with the projection 8d as an axis. However, when the operation lever 3 is rotated in the direction of arrow B (see FIG. 2) orthogonal to the pointing position, the operation lever 3 and the operating member 7 move the protrusions 8b with respect to the holder 8. Rotate by a predetermined angle in the vertical direction with the connecting straight line as the rotation axis.

Further, as shown in FIG. 2, a second driving body 27 is slidably held via a spring 26 in a storage portion 7c at the rear end of the actuating member 7, and the second driving member 27 is driven. The tip of the body 27 is in pressure contact with the cam surface 8e formed inside the holder 8. The sliding direction of the second driving body 27 moving on the cam surface 8e is the same as that of the first driving body 24.
When the operation lever 3 is rotated in the direction of arrow B (see FIG. 2), the operating member 7 rotates and the second driving body 27 slides on the cam surface 8e. It has become.

When the holder 8 is attached, the receiving portion 8h and the cam portion 4c of the first lever member 4 are disengageable, and when the receiving portion 8h and the cam portion 4c are disengaged, The first lever member 4 is in a state of being projected rearward by the bias of the torsion coil spring 6. In this embodiment, the first lever member (cancellation lever) 4 is provided with the cam portion 4c, and the holder 8 is provided with the receiving portion 8h. The holder may be provided with a receiving portion and the holder 8 may be provided with a cam portion.

Next, the operation of the turn signal switch device according to the present invention will be described. When the operating lever 3 is in the neutral position, the first driving body 24 has the valley portion 1 at the center of the cam surface 10.
0a and the cam portion 4 of the first lever member 4
The abutment portion 8h of the holder 8 abuts on c, and as shown in FIGS. 5 and 6, the first lever member 4 is
It moves in the forward direction against the biasing force of the torsion coil spring 6. Therefore, the contact portion 4e of the first lever member 4 is located outside the rotation locus of the cancel protrusion 28 that rotates in conjunction with the handle, and even if the handle is rotated in this state, the cancel protrusion 28 is The operation lever 3 is maintained in the neutral position without coming into contact with the contact portion 4e of the first lever member 4.

Next, when the operating lever 3 is rotated from the neutral position shown in FIGS. 5 and 6 in either the arrow A1 direction or the arrow A2 direction in FIG. 3, the tip portion of the first driving body 24 is rotated. Slides on the cam surface 10 and is locked by the lock portion 10b, so that a click feeling is generated when riding over the slope of the cam surface 10.

Here, for example, when the operation lever 3 is rotated in the direction of arrow A2 in FIG. 3, the holder 8 is also rotated in the same direction in conjunction with the operation lever 3, and the top of the receiving portion 8h is accordingly cammed. Since the first lever member 4 is disengaged from the arm portion 6 of the torsion coil spring 6, as shown in FIGS.
By receiving the elastic force of c, the first and second elongated holes 4a and 4b move backward (backward with respect to the operating lever 3) along the longitudinal direction (formation direction), and the contact portion 4e rotates the cancel protrusion 28. Advance into the trail.

Further, as the operating lever 3 rotates in the direction of arrow A2, the arm portion 8j of the holder 8 drives one of the slider receivers 12, so that the first switch S1 is operated and the contacts are contacted. Is switched, and the not-shown right turn lamp blinks. Further, at this time, the protrusion 8f of the holder 8 is
The state becomes close to the second engaging portion 5e of the first lever member 5.

Further, when the handle is rotated in the direction of arrow C (reverse direction) in the right turn state shown in FIGS. 7 and 8, the cancel projection 28 comes into contact with the first lever member 4 during the return operation. Hit part 4e. As a result, the first lever member 4 rotates clockwise around the protrusion 2g of the upright wall 2e, and accordingly, the second lever member 5 engaged with the first lever member 4 has the shaft portion. Since it rotates clockwise about 2f, the second engaging portion 5 of the second lever member 5 is rotated.
e engages with the protrusion 8f of the holder 8 to rotate the holder 8.

As a result, the first holder held by the holder 8
The tip portion of the driving body 24 of the
And moves to the central valley 10a.
And the second lever member 5 automatically returns to the neutral position shown in FIGS. Further, when the holder 8 returns to the neutral position, the receiving portion 8h engages with the cam portion 4c of the first lever member 4, and the first lever member 4 is pushed back in the forward direction against the torsion coil spring 6. Similarly, the first lever member 4 also
It automatically returns to the neutral position shown in FIGS.

In the right turn state shown in FIGS. 7 and 8, when some force acts on the operating lever 3 to prevent the automatic return, for example, when the operating lever 3 is pressed and the handle is rotated in the opposite direction. , The first lever member (cancel lever) 4 is pressed by the cancel protrusion 28, and the second engaging portion 5e is projected around the protrusion 2g.
It rotates slightly until it hits the
The lever member 4 slides in the forward direction (direction of the operating lever 3) using the projection 2g and the first engaging portion 5d as a guide, and retracts out of the rotation locus of the cancel projection 28.

Therefore, between the first lever member 4 and the holder 8, an excessive load is not generated, and the steering wheel can be operated while maintaining the right turn state. Then, when the cancel protrusion 28 passes the contact portion 4e of the first lever member 4, the first lever member 4 causes the spring 2 to move.
The repulsive force of 5 automatically returns from the retracted position to the position within the rotation trajectory of the cancel protrusion 28, and returns to the cancelable state.

On the other hand, when the operation lever 3 is rotated in the direction orthogonal to the designated position (the direction of arrow B in FIG. 2), the operation lever 3
The actuating member 7 rotates with respect to the first and second cases 1 and 2 and the holder 8 by a predetermined angle in the vertical direction with the straight line connecting the protrusions 8b as the axis of rotation, and the tip of the second driving body 27 accordingly. Part slides on the cam surface 8e of the holder 8, and the cam surface 8e
A feeling of click is generated when getting over e. And
As the operating lever 3 rotates, the arm 7b of the operating member 7 drives the other slider receiving body 13, so that the second switch S2 is operated to switch the contacts, and Switching and passing operations are performed.

[0062]

In the turn signal switch device of the present invention, the upright wall 2e of the housing H is provided with the shaft portion 2f protruding from the surface opposite to the surface on which the cam surface 10 is formed, and the base portion 5b of the lever member 5 is provided. The cancel lever 4 extends along the upright wall 2e, is rotatably supported by the shaft portion 2f, and is provided on one end side of the base portion 5b.
, And when the cancel lever 4 rotates,
The cancel lever 4 moves the first engagement portion 5d, and the movement of the first engagement portion 5d causes the lever member 5 to move.
Rotates about the shaft portion 2f, and the lever member 5 is rotated to return the operating lever 3 from the operating position to the neutral position via the second engaging portion 5e provided on the other end side of the base portion 5b. As a result, the lever member 5 is arranged in an upright state with respect to the cancel lever 4, and can be made smaller in the depth direction than in the conventional case, and a small turn signal switch device can be provided.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a main part of a turn signal switch device according to the present invention.

FIG. 2 is a vertical cross-sectional view of a main part of the turn signal switch device of the present invention.

FIG. 3 relates to a turn signal switch device of the present invention,
The top view which shows the state which cut | disconnected the 1st case.

FIG. 4 relates to a turn signal switch device of the present invention,
The top view which shows the state which cut the principal part.

FIG. 5 relates to a turn signal switch device of the present invention,
FIG. 9 is an operation explanatory view showing a state of the cancel lever at the neutral position.

FIG. 6 relates to a turn signal switch device of the present invention,
FIG. 7 is an operation explanatory view showing a state of the holder at the neutral position.

FIG. 7 relates to a turn signal switch device of the present invention,
FIG. 7 is an operation explanatory view showing a state of the cancel lever at the operation position.

FIG. 8 relates to a turn signal switch device of the present invention,
FIG. 7 is an operation explanatory view showing a state of the holder in the operation position.

FIG. 9 is an exploded perspective view of a conventional turn signal switch device.

FIG. 10 is a vertical cross-sectional view of a main part of a conventional turn signal switch device.

FIG. 11 relates to a conventional turn signal switch device,
FIG. 6 is a plan view showing a state in which an operation lever and the like are incorporated in the first case.

FIG. 12 relates to a conventional turn signal switch device,
Operation | movement explanatory drawing which shows the state of a neutral position.

FIG. 13 relates to a conventional turn signal switch device,
Operation | movement explanatory drawing which shows the state of an operation position.

FIG. 14 relates to a conventional turn signal switch device,
Explanatory drawing which shows an operating state.

[Explanation of symbols]

H housing 1 first case 1a holding part 1b Top plate 1c Side plate 1d Rear plate 1e Notch 2 Second case 2a base 2b hole 2c holding part 2d protrusion 2e Upright wall 2f shaft 2g protrusion 3 operation lever 4 First lever member (cancel lever) 4a 1st long hole 4b Second long hole 4c cam part 4d hanging part 4e Abutment part 5 Second lever member 5a hole 5b base 5c Bent part 5d first engaging portion 5e Second engaging portion 6 torsion coil spring 6a Winding part 6b Arm 6c arm 7 Working member 7a recess 7b Arm 7c storage 8 holder 8a protruding piece 8b protrusion 8c protruding piece 8d protrusion 8e Cam surface 8f protrusion 8g storage 8h receiver 8j Arm 10 Cam surface 10a Tanibe 10b Lock part 11 printed circuit boards 12 Slider receiver 13 Slider receiver 14 movable contacts 15 movable contacts S1 First switch S2 Second switch 24 First driver 25 springs 26 spring 27 Second driver 28 Cancel projection

Claims (7)

[Claims] 1. A housing having an upright wall provided with a first cam surface, an operation lever rotatably supported by the housing, and the operation lever in a neutral position in cooperation with the first cam surface. A first driving body held in an operating position, a first spring biasing the first driving body toward the first cam surface, and a cancel lever that is rotated by contacting a cancel protrusion on the handle side. And a lever member that transmits the rotational movement of the cancel lever to the operation lever to return the operation lever from the operating position to the neutral position, and the upright wall has a side opposite to the cam surface forming surface. A shaft portion projecting from the surface of the lever member, the lever member extending along the upright wall, and a base portion rotatably supported by the shaft portion; Combined It has a first engaging portion and a second engaging portion provided on the other end side of the base portion, and when the cancel lever rotates, the cancel lever moves the first engaging portion, By this movement of the first engaging portion,
The lever member rotates about the shaft portion, and the lever member is rotated to return the operating lever from the operating position to the neutral position via the second engaging portion. Turn signal switch device. 2. The lever member is arranged so as to traverse the upright wall in the up-down direction, the first engaging portion is located below and engages with the cancel lever, and the second engaging member. The turn signal switch device according to claim 1, wherein the portion is located above. 3. The cancel lever has first and second elongated holes, the first engaging portion being inserted into the first elongated hole, and the second elongated hole. A protrusion extending from the upright wall is inserted therein, and the cancel lever is slidable in the first and second elongated hole forming directions and rotatable about the protrusion. The turn signal switch device according to claim 1 or 2. 4. A holder rotatably supported by the housing in association with the operation lever, wherein the holder holds the first driving body and the first spring, and the holder is The holder is movable to a neutral position and an operating position, and the holder has a protrusion capable of engaging with the second engaging portion and a first arm portion for operating a first switch, and the operating lever The holder is rotated to the operating position in conjunction with the rotation operation of the first switch, the first switch is operated by the first arm portion, and is rotated by the cancel lever when the cancel lever is rotated. The second engaging portion of the lever member is adapted to hook the protrusion to rotate the holder, so that the holder and the operating lever are returned from the operating position to the neutral position. The turn signal switch device according to any one of 1 to 3. 5. A cam portion is provided on one of the holder and the cancel lever, and a receiving portion that can be engaged with and disengaged from the cam portion is provided on the other, and the cancel lever is biased by a torsion coil spring, When the holder is rotated by the rotation of the operation lever, the engagement between the cam portion and the receiving portion is disengaged, and the cancel lever is positioned within the rotation locus of the cancel protrusion by the torsion coil spring. When the lever rotates, the holder returns from the operating position to the neutral position, the cam portion and the receiving portion return to the engaged state, and the cancel lever resists the torsion coil spring to rotate the cancel protrusion. The turn signal switch device according to claim 4, wherein the turn signal switch device is located outside the locus. 6. A second drive body that cooperates with a second cam surface provided on the holder to hold the operation lever in a neutral position and an operating position, and the second drive body is the second cam. A second spring that urges the surface toward the surface; and an operating member that is rotatable in a direction orthogonal to the rotating direction of the holder and is interlockable with the operating lever.
The second driving body and the second spring are held so that the operating member can move to a neutral position and an operating position, and the operating member has a second arm portion for operating the second switch. , The operating member is turned to the operating position in conjunction with the turning operation of the operation lever, and the second switch is operated by the second arm portion, so that the operation lever is turned. 6. The turn signal switch device according to claim 1, wherein the actuating member and the operating lever are automatically returned from an operating position to a neutral position when released. 7. The turn signal switch device according to claim 6, wherein the first and second switches are arranged adjacent to each other.