JPH0143790Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a turn signal switch that uses a stop lamp as a rear flash lamp.The purpose of the switch is to prevent short circuits between fixed contact pieces due to contact pieces in the moving direction of adjacent movable contact pieces. The goal is to ensure sufficient spacing to avoid this.

The following is an example of the present invention shown in Figures 1 to 3.
This will be explained with reference to the figures. Reference numeral 1 denotes an insulator fixed to a switch case (not shown), and an operating member 2 that moves linearly along the insulator is disposed inside the switch case. A piece 3 and a movable contact piece 4 having three contact portions 4a to 4c are respectively provided. And these contact parts 3
a to 3c and 4a to 4c are set so that the loci of movement of the operating member 2 are parallel straight lines with a predetermined interval between them. Fixed contact pieces 5 to 7 are provided on the insulator 1 to face the movable contact piece 3, and these are provided along the loci of movement of the contact parts 3a to 3c, respectively. Fixed contact pieces 8 to 13 are provided on the insulator 1 to face the movable contact piece 4. The fixed contact pieces 8 and 9 are arranged along the movement locus of the contact portion 4a, and the fixed contact pieces 10 and 11 are arranged along the movement locus of the contact part 4b,
The fixed contact pieces 12 and 13 are arranged along the movement locus of the contact portion 4c. 14 is a stop switch that is turned on in conjunction with the brake operation of the automobile; 15;
17 and 18 are left and right front flasher lamps; 19 and 20 are left and right front flasher lamps; 17 and 18 are left and right front flasher lamps; The right stop lamps are connected as shown in FIG. In addition, 21 to 25 are the respective fixed contact pieces 5 to 1 attached to the insulator 1.
These are contact parts 3a to 3c and 4a to 4.
This is to prevent c from moving along a flat surface and tilting toward the insulator 1.

Next, the operation of this embodiment configured as described above will be explained. When the operating member 2 is in the neutral state shown in FIG.
are in contact with the fixed contact pieces 5 to 7, and the contact portions 4a to 4c of the movable contact piece 4 are in contact with the protrusions 23 to 25. Therefore, when the stop switch 14 is turned on, the left and right stop lamps 19, 20 is energized and lights up. Next, when the operating member 2 is moved linearly in the direction of arrow L from the neutral position shown in FIG. The contact with the movable contact piece 3 is cut off, and the contact portions 4a to 4 of the movable contact piece 4
c are in contact with the fixed contact pieces 8, 10, and 12, respectively. Therefore, the right stop lamp 20 is connected to the stop switch 14, and when the stop switch 14 is turned on, only the right stop lamp 20 is energized and illuminated. The left stop lamp 19 and the left front flasher lamp 17 are connected to the load side of the flasher unit 15, respectively, and they flash in constant synchronization. On the other hand, when the operating member 2 is moved linearly in the direction of arrow R from the neutral position shown in FIG. The contact with the movable contact piece 3 is cut off, and the contact portions 4a to 4c of the movable contact piece 4 are brought into contact with the fixed contact pieces 9, 11, and 13, respectively. Therefore, the left stop lamp 19 is connected to the stop switch 14, and when the stop switch 14 is turned on, only the left stop lamp 19 is energized and illuminated. The right stop lamp 20 and the right front flasher lamp 18 are each connected to the load side of the flasher unit 15, and these flash at a constant cycle.

Thus, each contact portion 3a to 3 of the movable contact pieces 3, 4
c and 4a to 4c are switched by sliding on each of the fixed contact pieces 5 to 13, so contact piece debris consisting of abrasion powder of each contact piece and carbon due to arc generation is removed from each of the fixed contact pieces 5 to 13. The adhesion to the upper surface of the insulator 1 near the longitudinal ends is exactly the same as in the conventional case, but since the fixed contact pieces 5 to 7 are parallel to each other, the adhesion occurs near the longitudinal ends. The contact piece debris will not short-circuit the fixed contact pieces 5 to 7, and the fixed contact pieces 10,
11 and the fixed contact pieces 12 and 13 are located in a straight line, but the protrusion 2 that faces the neutral state of the operating member 2
4 and 25 are narrowed and separated by a considerable length, so that the contact piece debris generated at the longitudinal ends of these does not cause a short circuit between the fixed contact pieces 10 and 11 and the fixed contact pieces 12 and 13. Furthermore, these fixed contact pieces 1
0, 11 and fixed contact pieces 12, 13 are fixed contact pieces 8,
9 is parallel to the fixed contact pieces 8, 9 and the fixed contact pieces 10, 11, 1 for the same reason as mentioned above.
There is no possibility that a short circuit will occur between the terminals 2 and 13 due to contact pieces.

As is clear from the above description, the present invention is a turn signal that can ensure sufficient spacing between fixed contact pieces in the direction of movement of adjacent movable contact pieces to prevent short circuits due to contact pieces, thereby ensuring accurate operation. We can provide a switch.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 shows the contact piece relationship in a neutral state together with an electric circuit, and Fig. 2 shows the contact piece relationship when the operating member is operated to the left. 3 are diagrams showing the relationship between the contact pieces when the operating member is operated to the right. In the drawing, 1 is an insulator, 2 is an operating member,
3 and 4 are movable contact pieces, 3a to 3c and 4a to 4
c is a contact part, 5 to 13 are fixed contact pieces, 14 is a stop switch, 15 is a flasher unit, 16
17 and 18 are left and right front flash lamps, and 19 and 20 are left and right stop lamps.

Claims (1)

[Claims for Utility Model Registration] Each set has three sets of fixed contact pieces approximately parallel to each other, each has three contact parts corresponding to these, and each set is operable from the neutral position to the left and right operation positions. A turn signal switch comprising first and second switches each having a plurality of sliding movable contact pieces and one common operating member for operating the movable contact pieces of both switches, wherein the first switch is located in the center of the three sets of fixed contact pieces of the first switch, is always in contact with one contact part of the movable contact piece of the first switch, and is connected to the power supply via the stop lamp switch. A fixed contact piece for a stop, and a movable contact piece located on both sides of the fixed contact piece for a stop, and in the neutral position of the movable contact piece of the first switch, contacts the remaining two contact parts of the movable contact piece, and contacts the left and right contact pieces. A stop lamp is connected to the stop switch, and when the movable contact piece of the first switch is operated from the neutral position to the left or right by operating the operating member, the movable contact piece selectively contacts the remaining two contact portions. A fixed contact piece for left and right selectively connects a lamp on the opposite side to the operating direction of the right and left stop lamps to the stop switch, and the second switch includes: 3 of the second switch. The second switch is located in the center of the set of fixed contact pieces, and when the movable contact piece of the second switch is operated from the neutral position to the left or right, it comes into contact with one contact part of the second switch and activates the flasher unit. a fixed contact piece for turning connected to the power source through the switch; and a fixed contact piece for turning that is located on both sides of the fixed contact piece for turning, and when the movable contact piece of the second switch is operated to the left or right from the neutral position, the operating member By the operation, the remaining two contact parts of the movable contact piece are contacted and the left or right stop lamp and the left or right front flasher lamp corresponding to the operating direction are selectively moved to the flash unit. A turn signal switch comprising: a common fixed contact piece connected to the power supply via the turn signal switch.