JP2881383B2 - Structure of vehicle wiper switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiper switch having a so-called mist function.

[0002]

2. Description of the Related Art Conventionally, as this kind of technique, there is a technique disclosed in Japanese Utility Model Publication No. 63-23254. The mist mechanism of this technology performs a mist operation by raising and lowering the lever in the front-rear direction. When the lever is released, the mist is returned to the original mist-off position by a sliding body that is urged by a compression spring and pressed against the inclined surface. Is what you do. The window washer mechanism of this technique turns on a washer switch by pressing a push button provided at the end of a lever.

[0003]

However, in the above-mentioned prior art, the mist function is activated by raising and lowering the lever in the front-rear direction, and the window washer is activated by pressing the push button at the other end of the lever. There is a problem that operability is poor when using the mist function and the window washer function continuously.

[0004]

SUMMARY OF THE INVENTION The present invention has invented to solve the problems of the prior art described above, wherein
The invention of Item 1 is that the case and the base end are inserted into the case.
And the front and rear direction with respect to the case , and up and down
The lever is installed so that it can rotate freely in the direction, and it is operated by rotating the lever in the front-rear direction . One end is fixed to the pole plate, and the other end is
At least bifurcated, and one of them is
The contact for mist and the other for wiper washer
Horizontal direction of the mist contact and the wiper washer contact
The length of each direction is different, and each tip is bent downward
Also, make the length of each bent part different,
Between the mist contact and the wiper washer contact
Actuating part with which the push button part of the lever abuts on the extension line between
A plate spring formed with, retractable freely established via a spring at one end of the lever, and the back of the opening of the case
Comprising a detent member pressed against the detent surface formed on a wall, a front
When the lever is operated up and down,
A moderation groove to which the moderation body slides and locks is formed on the back wall of the case.
Continuously formed in an arc shape in a substantially vertical direction, and superimposed on the moderation groove
A vertical surface for holding the leaf spring in the OFF state and the
A first slope for holding an ON state of a strike contact and the wiper;
Connecting a second inclined surface that holds the ON state of the washer contacts
It is a continuation.

[0005] The invention according to claim 2 of the present invention is characterized in that the contract
The invention according to claim 1, wherein the pole plate is formed by insert molding.
Exposing the connection hole drilled in the shaped fixed contact in the engagement part,
The leaf spring has a mist contact and a wiper wash at one end.
Forming a contact for shaving, and the other end of the shank to the engaging portion of the pole plate.
That is, they are fitted and electrically connected to the fixed contact.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. Reference numeral 1 denotes a wiper switch lever which is pivotally supported on a case 7 fixed to a base (not shown) of an automobile steering column. The lever 1 has a blind hole 1b in which a moderator 5 is inserted through a spring 4 at one end, and an intermittent wiper volume 2 composed of a rotary switch and a rear wiper washer switch 3 installed at the other end. I have. Note that one end and the other end of the above-described lever 1 are simply used names, and may be either.

The lever 1 rotates around the shaft 1a in the forward and backward directions of arrows A and B. The lever 1 performs a mist operation when the first-stage swing operation is performed in the backward direction of the arrow A,
Further, when the second swing operation is performed in the backward direction of the arrow A, the wiper washer operation is performed. The lever 1 has a cord 8 connected to the intermittent wiper volume 2 and the rear wiper washer switch 3 inserted therethrough. The lever 1 has one end inserted into the movable body 6 and the shaft 1a pivotally supported by a shaft support piece 6a formed on both side surfaces of the movable body 6.

The lever 1 is provided with a support shaft 6 of a movable body 6.
It rotates in the vertical direction of arrows C and D about b and 6c. When the lever 1 is completely rotated in the direction of arrow D, the wiper stop position (OFF) and the wiper stop position (O
FF), the first-stage operation in the direction of arrow C from the wiper intermittent operation position (INT), and when the lever 1 is operated in the second stage in the direction of arrow C, the low-speed wiper operation position (LO);
Further, when the lever 1 is operated at the third stage in the direction of arrow C, the lever 1 can be rotated and held at each position of the wiper high-speed operation position (HI).

The spring 4 pushes the moderating body 5
It is inserted into the blind hole 1b and is made of, for example, a coil spring. The moderating body 5 includes, for example, a moderating pin having a hemispherical tip,
It is made of a steel ball and pressed against the moderation surface 7a of the case 7.

The movable body 6 is inserted into an opening 7b formed on the side surface of the case 7. The movable body 6 has a support shaft 6 on the upper and lower surfaces.
b and 6c are formed so as to protrude, and rotate with the lever 1 around the support shafts 6b and 6c in the front and rear directions of arrows C and D. In the movable body 6, the support shaft 6 b is aligned with the shaft hole 7 c formed in the upper surface of the opening 7 b, and the support shaft 6 c is aligned with the shaft hole 9 a of the pole plate 9. The movable body 6 holds a movable contact plate 12 via a spring 11 on the lower surface on the moderation surface 7a side.

The shaft support 6a is an elastic tongue having shaft holes 6f formed on both sides of the movable body 6, as shown in FIG. 6d is a lateral hole through which the end of the lever 1 is inserted,
It is drilled on the side of the movable body 6. Reference numeral 6e denotes a vertical hole formed in the lower surface of the movable body 6 as shown in FIG. 3, and is formed so that the pressing portion 1c of the lever 1 is pressed against the operating portion 10a of the leaf spring 10. The shaft hole 6f is a hole formed in a shaft support piece 6a formed on both side surfaces of the movable body 6, and the shaft 1
Align with a.

The case 7 is fitted to a switch base (not shown) screwed to the steering column. The case 7 has a positioning protruding rod 7d protruding from the lower surface fitted in the blind hole 9d, and a locking piece 7e formed around the case 7 is engaged with the claw 9c, and is screwed to the pole plate 9. doing.

The moderating surface 7a is provided on the lever 1 of the wiper switch.
At the wiper stop position (OFF) and the wiper intermittent operation position (I
NT), a wiper low-speed operation position (LO), a wiper high-speed operation position (HI), a mist operation position (I), and a wiper washer operation position (II).
Formed on the inner wall. The detent surface 7a pushes the lever 1 rotating in the directions of arrows C and D to the wiper stop position (OFF),
The moderation grooves 7f, 7g, 7h, 7i of the wiper switch supported at the wiper intermittent operation position (INT), the wiper low-speed operation position (LO), and the wiper high-speed operation position (HI), and the moderation grooves 7f, 7g, 7h, Vertical surface 7j formed on 7i,
A so-called mist-operating first slope 7k and a wiper-washer-operating second slope 7m are provided.

The moderation grooves 7f, 7g, 7h, 7i are shown in FIG.
As shown in FIG. 2 and FIG. 2, the groove is formed in a substantially vertical direction and continuously in an arc shape. The moderation groove 7f is a groove for holding the lever 1 at the wiper stop position (OFF). Moderation groove 7h
Is a groove for holding the lever 1 at the wiper low speed operation position (LO). The detent groove 7i is a groove for holding the lever 1 at the wiper high-speed operation position (HI).

The vertical surface 7j is a surface for holding the mist in the OFF state, and the lever 1 is completely rotated in the direction of arrow B when the detent body 5 is pressed against the surface. The vertical surface 7j is formed vertically above the moderation grooves 7f, 7g, 7h, 7i on the back wall of the opening 7b.

[0016] The first inclined surface 7k is automatically lever 1 when the operation of the first stage in the arrow A direction, with detent body 5 gives a feeling of moderation in pressure contact, the lever 1 OFF position (N) This is the surface to be restored. The first-stage operation position at which the moderator 5 is pressed against the first slope 7k is a mist operation position (I) at which a mist operation for operating the wiper once is performed. The first slope 7k is a slope continuously provided below the vertical surface 7j of each of the moderation grooves 7f, 7g, 7h, 7i.

[0017] The second inclined surface 7m is a slope which is provided continuously to the lower portion of the first inclined surface 7k, the inclination angle is less than the first slope 7k. The second inclined surface 7m is a surface that, when the lever 1 is operated in the second stage in the direction of arrow A, the moderation body 5 is pressed to give a moderation feeling, and the lever 1 is automatically returned to the OFF position (N). It is. The second-stage operation position of the lever 1 at which the moderator 5 is pressed against the second slope 7m is a wiper-washer operation position (II) at which the wiper and the washer operate simultaneously.

The pole plate 9 includes a fixed contact 13 to which a movable contact plate 12 provided on the lower surface of the movable body 6 contacts, a mist contact 10b of the leaf spring 10, and a wiper washer contact 10c.
The fixed contact 14 and the terminal 15 that are in contact with each other are insert-molded. The pole board 9 is provided with a cover 17 via a substrate 16. As shown in FIG. 4, reference numeral 9d denotes a rectangular through hole formed in the pole plate 9, and a fixed contact 14 which is in contact with the U-shaped curved portion 10c of the leaf spring 10 in an upper portion inside the through hole 9d. Are exposed.

Reference numeral 9e denotes an engaging portion to which the convex piece 10f of the leaf spring 10 fits, which prevents the leaf spring 10 from rattling in the horizontal direction. In addition, the engagement portion 9e is connected to the lever 1
Is at the OFF position (N), the mist contact 10b and the wiper washer contact 10c protrude from the upper surface of the pole plate 9 at a desired height so as to be maintained at a predetermined height from the fixed contact 14.

The leaf spring 10 is moved from a substantially central portion to one end.
An operating portion 10a, a mist contact 10b, and a wiper washer contact 10c are formed in a trifurcated shape, and a U-shaped bent portion 10e having a claw 10d at the other end side to be engaged with the connection hole 14a of the fixed contact 14 is provided. Has formed. The leaf spring 10 is made of a metal conductive material, and has a U-shaped bent portion 10e in a connection hole 14a.
The convex piece is fitted into the engaging portion 9e, and the claw 10d is connected to the connection hole 14e.
By being locked to the edge of a, it is fixed to the pole board 9 with one touch.

The operating part 10a is provided with a mist contact 10b and a wire.
Ipa intended washer curved that placed on the extension line between the contact 10c for pressing portion 1c are in contact. As shown in FIG. 4, the mist contact 10b projects horizontally from the operating portion 10a by a length L1 and has a length H1 downward.
It is bent in an L shape. Wiper washer contact 10c
Has a length L2 projecting horizontally from the operating portion 10a, and is bent downward in a L-shape with a length H2.

The claw 10d is formed on the outer surface of the U-shaped bent portion 10c, and is engaged with the edge of the connection hole 14a of the fixed contact 14 insert-molded in the pole plate 9, thereby connecting the leaf spring 10 to the pole plate 9. It is for fixing to. The U-shaped bent portion 10e is shown in FIG.
As shown in FIG. 2, the leaf spring 10 is pressed into contact with the connection hole 14a of the fixed contact 14 so that the leaf spring 10 is fixed to the pole plate 9 with one touch, and the leaf spring 10 and the fixed contact 14 are electrically connected. Things. The convex piece 10f is for preventing the leaf spring 10 from swinging in the horizontal direction by being fitted to the engaging portion 9c.

The fixed contacts 13 and 14 have their upper ends exposed on the pole board 9 and their lower ends integrally molded or welded to the terminals 15. The terminal 15 is soldered to a through hole of the substrate 16 as shown in FIG. The board 16 is interposed between the pole board 9 and the cover 17. The cover 17 is
It is locked to.

The present invention is configured as described above. Next, the operation will be described in detail with reference to FIGS. Lever 1 is OF
At the F position (N), it is in the state of FIGS. The moderator 5 is pressed against the vertical surface 7j of the moderator surface 7a. The leaf spring 10 is not bent by the pressing portion 1c, and the mist contact 10
b and the wiper washer contact 10c is a fixed contact 14.
Away from

When the lever 1 at the OFF position (N) is
When the first stage swing operation is performed in the backward direction, the lever 1
It turns around the shaft 1a and turns to the mist operation position (I). The tip of the moderator 5 extends from the vertical surface 7j to the first slope 7
k, and moves to the boundary between the first slope 7k and the second slope 7m. At this time, the moderator 5 compresses the spring 4 and slightly sinks into the blind hole 1b, giving a sense of moderation of the first-stage operation. The leaf spring 10 is configured such that the operating portion 10a has a pressing portion 1c.
And the mist contact 10b contacts the fixed contact 14 and turns on. Thus, a so-called mist operation in which the wiper operates once is performed. At this time, the wiper washer contact 10c slightly descends but does not contact the fixed contact 14.

When the lever 1 at the mist operation position (I) is swung in the second stage in the backward direction of the arrow A, the lever 1
Is the wiper washer operating position (I
Rotate to I). The tip of the moderator 5 moves from the boundary between the first slope 7k and the second slope 7m to the second slope 7m. At this time, the moderator 5 compresses the spring 4 and further sinks into the blind hole 1b, giving a sense of moderation of the second stage operation. When the operating portion 10a is pressed by the pressing portion 1c and the wiper washer contact 10c contacts the fixed contact 14, the leaf spring 10
N. As a result, a wiper washer operation in which the wiper and the washer operate simultaneously.

The mist operating position of the first stage described above (I), and the second stage of the wiper washer operating position (I
When the hand is released from the position of the lever 1 of I), the detent body 5 urged by the spring 4 moves the second slope 7m and the first slope 7k.
To move to the vertical surface 7j, and the lever 1
And automatically returns to the original OFF position (N).

As shown in FIG. 2, the lever 1 is rotated in the direction of arrow D and when the detent member 5 is engaged with the detent groove 7f, the wiper switch is at the wiper stop position (OFF). . When the lever 1 is rotated one step further in the direction of arrow C from the wiper stop position (OFF), the detent body 5 moves and engages with the detent groove 7g, and the movable contact plate 12 comes into contact with the fixed contact 13; The wiper is set to the intermittent operation position (INT).

When the lever 1 is further rotated one step further in the direction of arrow C from the wiper intermittent operation position (INT), the detent body 5 moves and engages with the detent groove 7h, and the movable contact plate 12 is moved to the fixed contact 13 Is set to the wiper low-speed operation position (LO). Then, the wiper is driven intermittently. When the lever 1 is in the wiper intermittent operation position (INT), the intermittent drive time of the wiper can be adjusted by rotating the intermittent wiper volume 2.

When the lever 1 is further rotated one step further in the direction of arrow C from the wiper low-speed operation position (LO), the moderator 5
Moves to engage with the moderator 7i, and the movable contact plate 1
2 contacts the fixed contact 13 and the wiper high-speed operation position (H
Set to I). Then, the wiper is driven at a high speed.

[0031]

Since the present invention is constructed as described above, the following effects can be obtained. (1) The invention according to claim 1 is characterized in that the leaf spring is provided in the longitudinal direction of the lever.
Operated by rotating operation, one end is fixed to the pole plate, and the other end is
At least a bifurcated projection is formed, and one of the
Contact for the strike and the other as the contact for the wiper washer,
Horizontal direction of the mist contact and the wiper washer contact
The length of each is different, and each tip is bent downward
In both cases, the lengths of the bent parts are different from each other, and
Between the mist contact and the wiper washer contact
On the extension line of the above, the operating part with which the push button part of the lever abuts
With the formation, the operation lever can be operated for mist operation and wipe operation.
When operating the power washer, the mist contact and wiper
The contact pressure to an appropriate value
And the leaf springs operate smoothly and sequentially,
Is good. (2) According to the first aspect of the present invention, the moderation surface moves the lever up and down.
Moderation groove that the moderation body slides and locks when operated in the direction
Is continuously formed in an arc shape in a substantially vertical direction of the back wall of the case.
And is placed in the moderation groove so that the OFF state of the leaf spring is
Hold the vertical plane to be held and the ON state of the mist contact
The ON state of the first slope and the wiper washer contact
With the continuous formation of the second slope to be held, the
Operate the wiper only once in the first stage operation and apply it to the glass surface
Mist that temporarily wipes out slightly attached raindrops and muddy water
Motion, muddy water adhering to the glass surface by the second stage operation of the lever
And wipe the dirt two or three times, and washers
Wiper washer operation that sprays liquid and temporarily wipes it
Can be performed by operating one lever in the same direction.
Related operation of temporarily activating the wiper to wipe the glass surface
Can be operated step by step, making operability extremely good.
it can. In addition, one leaf spring can also serve as the contact of two switches, reducing the number of parts and the number of assembly steps, and reducing costs.
Can be reduced. (3) In the invention of claim 2, the pole plate is formed by insert molding.
The connection hole formed in the fixed contact is exposed in the engagement portion, and
Leaf spring has mist contact and wiper washer at one end
And the other end is fitted to the engaging portion of the pole board.
The leaf spring is electrically connected to the fixed contact,
One-touch installation on the pole board and electrical connection
Can be.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a preferred embodiment of the present invention.

FIG. 2 is a view showing a preferred embodiment of the present invention, and is an enlarged plan view having a partially broken surface.

FIG. 3 is a view showing a preferred embodiment of the present invention, and is an enlarged central longitudinal sectional view having a partially broken surface.

FIG. 4 is a drawing showing a preferred embodiment of the present invention, and is an enlarged side view of a main part having a partial cross section showing a mounted state of a leaf spring.

[Explanation of symbols]

 Reference Signs List 1 lever 5 moderation body 6 movable body 7 case 7a moderation surface 7f, 7g, 7h, 7i moderation groove 7j vertical surface 7k first slope 7m second slope 9 pole board 10 leaf spring 10a operating section 10b mist contact 10c for wiper washer Contacts 13, 14 Fixed contacts

Continuation of the front page (56) References JP-A-6-243756 (JP, A) JP-A-4-92466 (JP, U) JP-A-4-87541 (JP, U) JP-A-58-195929 (JP , U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60S 1/08 H01H 25/06

Claims (2)

(57) [Claims] 1. A case (7), a base end of which is inserted and arranged in the case (7), and
Forward (B) and backward (A) directions with respect to the source (7) , and upward
(D) Lever (1) installed to be rotatable in the downward (C) direction
The lever (1) is operated by a rotation operation in the front (B) and rear (A) directions to fix one end to the pole plate (9) and reduce the other end side.
Both protrude in a bifurcated shape, one of which is for mist
Contact (10b) and the other contact (10b) for the wiper washer.
c) and the mist contact (10b) and the wiper washer
The horizontal lengths (L1, L2) of the contacts (10c) are different
And bend each tip downward, and
The lengths of the bent parts (H1, H2)
The mist contact (10b) and the wiper washer
On the extension line between the lever and the lever (10c).
The operating part (10a) with which the push button part (1b) of (1) contacts
And forming the leaf spring (10), said one end and retractable installed via a spring (4) of the lever (1), and the opening of the case (7) (7
Moderation body pressed against moderation surface (7a) formed on back wall of b)
(5) , wherein the moderation surface (7a) moves the lever (1) up (D) down
When operated in the direction (D), the detent body (5) comes into sliding contact.
Locking moderation grooves (7f, 7g, 7h, 7i)
(7) to form a continuous arc in a substantially vertical direction of the back wall,
At the moderation grooves (7f, 7g, 7h, 7i).
A vertical surface (7j) holding the OFF state of the leaf spring (10)
And a first slope (7k) for holding the ON state of the mist contact (10b ) and the wiper washer contact ( 10k).
c) The second slope (7m) that keeps the ON state is continuous
A structure of a wiper switch for a vehicle, characterized in that it is formed . 2. The invention according to claim 1, wherein said pole plate (9) is provided with a fixed contact (1) formed by insert molding.
Insert the connection hole (14a) drilled in 4) into the engagement portion (9e).
The leaf spring (10) is exposed and the mist contact (10
b) and forming a contact (10c) for the wiper washer,
The other end is fitted to the engaging portion (9e) of the pole board (9).
A wiper switch for a vehicle, wherein the wiper switch is electrically connected to the fixed contact (14) .