JPH0628356Y2 - Turn signal switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a turn signal switch for controlling electrical connection and disconnection to left and right turn signal lamps by rotating a turn lever.

(Prior Art) In a conventional turn signal switch, a group of left-turn movable contacts and a group of right-turn movable contacts are provided in one contact holder that is slidably moved in association with a turning operation of a turn lever. There is.

(Problems to be solved by the invention) However, for example, in a type in which a rear turn signal lamp and a stop lamp are shared, a movable contact holder is provided with a movable contact having a large number of 6 to 8 movable contacts. For this reason, the sliding resistance of the movable contact is considerably large, and the turning operation force of the turn lever is large due to this sliding resistance, and thus the operation feeling of the turn lever is poor.

Therefore, an object of the present invention is to provide a turn signal switch capable of reducing the turning operation force of the turn lever and improving the operation feeling.

[Means for Solving the Problems] (Means for Solving the Problems) The present invention is provided with a turn lever capable of rotating in a left and right turn direction from a neutral position about a fulcrum provided on a base, and the base is provided with a left turn switch. And a right turn contact holder for the right turn switch are separately slidably provided.
An operating pin portion is provided on one side of the turn lever or each contact holder, and two guide grooves are provided on the other side of the turn lever or each contact holder so that one operating pin portion is engaged with each other. An escape groove portion formed along each of the guide grooves along the rotation locus of the operation pin when the turn lever is rotated in the left and right turn directions from the neutral position, and the rotation locus thereof. It is characterized in that it is composed of a working groove portion having a predetermined angle with respect to.

(Operation) According to the above means, when the turn lever is rotated in the left turn direction, only the left turn contact holder is slid and moved, and when the turn lever is rotated in the right turn direction, the right turn contact is held. Since only the holder is slidably moved, the turning operation force of the turn lever is small and the cornering operation feeling can be improved.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 is a case as a base body, 2 is a turn lever, and shaft parts 3 and 3 as fulcrums provided on the upper and lower surfaces of the turn lever 2 are partition walls 4 of the case 1 and a cover plate 5 attached to the case 1. Are rotatably supported by concave portions 4a and 5a respectively provided in the. The base end side of the turn lever 2 is formed in a fan shape, and two operating pin portions 6 and 6 located in one circumference centering on the shaft portion 3 are formed on the lower surface sides of both ends of the turn lever 2. It is projected. These operation pin portions 6 and 6 penetrate through a hole 7 provided in the partition wall 4. Reference numeral 8 denotes an insulator mounted on the case 1 at a predetermined distance from the partition wall 4. The insulator 8 has four fixed contacts 9a to 9d for the left turn and a right contact on the upper surface thereof as shown in FIG. Fixed contacts 10a to 10d for turns are provided. Between the partition wall 4 and the insulator 8, contact holders 11 and 12 for left turn and right turn are provided.
Are provided slidably in the direction of arrow A and in the opposite direction, respectively, and these three movable contacts 13a to 13c are respectively provided.
Movable contacts 13 and 14 each having a movable contact 13 and 14a to 14c are provided. The fixed contact 9a to 9d and the movable contact 13 constitute a left turn switch 15, and the fixed contact 10a to 10d and the movable contact 14 constitute a right turn switch 16. Is configured. Reference numerals 17 and 18 denote substantially V-shaped guide grooves formed on the upper surfaces that are the side surfaces of the contact holders 11 and 12 for the left turn and the right turn, respectively, and the tips of the respective operating pin portions 6 engage with these guide grooves. Has been done. Each of the guide grooves 17 and 18 is formed in an arc shape such that a portion located outside the intermediate position along the rotation locus of the operation pin portion 6 constitutes escape groove portions 17a and 18a, and the intermediate positions As shown in FIG. 1, the portion located inward from the inside constitutes action groove portions 17b and 18b having an angle α, that is, an angle of about 90 ° with respect to the rotation locus of the operation pin portion 6 around the shaft portion 3. ing. When the turn lever 2 is in the neutral position as shown in FIG. 1, the operation pin portions 6 and 6 are the boundary portions between the escape groove portions 17a and 18a of the guide grooves 17 and 18 and the action groove portions 17b and 18b. Is located in.
Reference numeral 19 denotes a moderation piece slidably disposed together with the compression coil spring 20 in the lateral hole 2a provided in the turn lever 2, whereby the control lever 2 is rotated to the neutral position and the left and right turn positions, respectively. I try to give the moderation when I was given.

In the electric circuit diagram shown in FIG. 4, 21 is a stop lamp switch, 22 is a flasher unit, 23 is a battery, 24 and 25 are stop lamps, 26 is a left turn lamp, and 27 is a right turn lamp. It is connected to the street.

Next, the operation of the above configuration will be described. Turn lever 2
Is in the neutral position as shown in FIG. 1,
The contact holders 11 and 12 are respectively located at their original positions, and the movable contacts 13 and 14 are in the state shown by the solid line in FIG.
13b is in contact with the fixed contacts 9d and 9b, respectively, and the movable contacts 14a and 14b of the movable contact 14 are in contact with the fixed contacts 10d and 10b, respectively, and the left and right stop lamps 24 and 25 are connected to the battery via the movable contacts 13 and 14. Since it is connected to the stop lamp switch 21 connected to the positive terminal of 23, when the foot brake (not shown) is depressed and the stop lamp switch 21 is turned on in this state, the left and right stop lamps 2
4, 25 are turned on.

Next, when the turn lever 2 is rotated from the neutral position in the left turn direction, that is, in the direction of arrow L, and brought into the state shown in FIG. 5, the operating pin portions 6, 6 move in the direction of arrow L around the shaft portion 3. Is displaced. Based on the displacement of the operation pin portions 6 and 6, one of the operation pin portions 6 is brought into the engagement state with the operation groove portion 17b of the guide groove 17 provided in the contact holder 11.
The contact holder 11 is slidably displaced in the direction of arrow A,
The movable contact 13 exhibits the state shown by the broken line in FIG. 4, and the movable contacts 13a to 13c of the movable contact 13 are brought into contact with the fixed contacts 9a to 9c, respectively. Further, since the other operation pin portion 6 is engaged with the escape groove portion 18a of the guide groove 18 provided in the contact holder 12, the contact holder 12 is positioned at the original position as it is. In this state, the left turn lamp 26 and the left stop lamp 24 are connected to the flasher unit 22 connected to the positive terminal of the battery 23 via the movable contact 13, so that these lamps 26 and 24 are both connected.
Blinks. Then, in this state, the foot brake (not shown) is depressed and the stop lamp switch 2
When 1 is turned on, only the right stop lamp 25 is turned on. From this state, when the turn lever 2 is returned to the neutral position by a manual operation or the action of a self-cancellation mechanism (not shown), the state shown in FIG. 1 is restored again.

Next, when the turn lever 2 is rotated from the neutral position in the right turn direction, that is, in the direction of arrow R and brought into the state shown in FIG. 6, the operating pin portions 6 are moved in the direction of arrow R around the shaft portion 3. Is displaced. Based on the displacement of the operation pin portions 6 and 6, one of the operation pin portions 6 is brought into the engagement state with the action groove portion 18b of the guide groove 18 provided in the contact holder 12.
The contact holder 12 is slidably displaced in the direction of arrow A,
The movable contact 14 exhibits the state shown by the broken line in FIG. 4, and the movable contacts 14a to 14c of the movable contact 14 are brought into contact with the fixed contacts 10a to 10c, respectively. Further, since the other operation pin portion 6 is brought into a state of being engaged with the escape groove portion 17a of the guide groove 17 provided in the contact holder 11, the contact holder 11 is positioned at the original position as it is. In this state, since the right turn lamp 27 and the right stop lamp 25 are connected to the flasher unit 22 connected to the positive terminal of the battery 23 via the movable contact 14, both the lamps 27 and 25 are in a blinking state. Present. Then, in this state, when a foot brake (not shown) is depressed to turn on the stop lamp switch 21, only the left stop lamp 24 is turned on. From this state, when the turn lever 2 is returned to the neutral position by a manual operation or the action of a self-cancellation mechanism (not shown), the state shown in FIG. 1 is restored again.

As described above, in this embodiment, the left turn movable contact holder 11 for the left turn switch 15 and the right turn movable contact holder 1 for the right turn switch 16 are provided.
2 is provided separately, the movable contact holder 11 is provided with only the movable contact 13 for left turn, the movable contact holder 12 is provided with only the movable contact 14, and the turn lever 2 is rotated from the neutral position in the arrow L direction. When operating, only the movable contact 13 is slid in the arrow A direction together with the left movable contact holder 11, and the right movable contact holder 12 and the movable contact 14 are stationary. Conversely, the turn lever 2 is moved from the neutral position to the arrow position. When rotating in the R direction, only the movable contact 14 together with the right movable contact holder 12 is rotated in the direction of arrow A, and the left movable contact holder 11 is stationary. In short, when the turn lever 2 is rotated in either the right or left turn direction, the movable contact 13 or 14 slidably moved by the movable contact holder 11 or 12 corresponds to one turn direction. In the embodiment, any one of the movable contacts 13 or 14 has only three movable contacts, and the same operation as the conventional number of simultaneously moved contacts of 6 can be performed. It can be greatly reduced compared to the conventional one, and the feeling of operation can be greatly improved. Although a detailed description is omitted, the conventional type having eight contact points can perform the same operation as the conventional one with five movable contact points, and the turning operation of the turn lever 2 is also possible. It is possible to reduce the force and improve the operation feeling.

It should be noted that one operating pin portion is provided for each movable contact holder 12, 14 and two guide grooves are provided on the turn lever 2 side, and the positional relationship between the operating pin portion and the guide groove is reversed from the above-described embodiment. May be.

[Advantage of the Invention] As is apparent from the above description, the present invention allows the left turn contact holder for the left turn switch and the right turn contact holder for the right turn switch to be separately slidably moved on the base body. And the operation pin portion provided on one of the turn lever or the contact holder is engaged with the guide groove provided on the other of these.
An escape groove portion formed along the rotation locus of the operation pin when the turn lever rotates from the neutral position to the left and right turn directions, and a predetermined groove relative to the rotation locus. When the turn lever is rotated in the left turn direction, only the contact holder for the left turn is slid and moved, and when the turn lever is rotated in the right turn direction, it is for the right turn. Since only the contact holder is slidably moved, there is an excellent effect that the turning operation force of the turn lever is small and the cornering operation feeling can be greatly improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a horizontal sectional view showing a cover removed, FIG. 2 is a vertical sectional view, FIG. 3 is an exploded perspective view, and FIG. FIG. 5 and FIG. 6 are electrical circuit diagrams showing the connection relationship and are equivalent to FIG. 1 showing an operation state different from FIG. In the drawings, 1 is a case (base), 2 is a turn lever, 3 is a shaft portion, 6 is an operating pin portion, 11 and 12 are contact holders, 13 and 14 are movable contacts, 17 and 18 are guide grooves, and 17a and 18a. Is an escape groove, and 17b and 18b are action groove portions.

Claims (1)

[Scope of utility model registration request] 1. A turn lever provided so as to be rotatable in a left and right turn direction from a neutral position about a fulcrum provided on a base body, and a turn lever provided on the base body so as to be slidable separately. A left turn contact holder for the left turn switch and a right turn contact holder for the right turn switch, an actuation pin portion provided on one side of the turn lever or each of the contact holders, and the turn lever Or two guide grooves provided so that each one of the operation pin portions engages with the other side of each contact holder, and each of the guide grooves includes a left and a right of the turn lever from the neutral position. From an escape groove portion formed along the rotation locus of the actuating pin when rotated in the turn direction and an action groove portion having a predetermined angle with respect to the rotation locus. Turn signal switch, characterized in that form.