JP4036631B2 - Vehicle door switch - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle door switch that mainly detects opening and closing of a door in an automobile or the like.
[0002]
[Prior art]
In recent years, it is common practice to install a vehicle door switch on the main body side of the door portion of an automobile, thereby detecting the opening and closing of the door, and controlling lighting and extinction of lighting in the vehicle interior, door locking, and the like. .
[0003]
FIG. 6 shows a conventional vehicle door switch. This vehicle door switch is configured to turn on / off the electrical continuity between the mounting plate 6 and the fixed electrode 2 via the contact piece 4, and the state shown in FIG. Is an on state pushed up by the coil spring 5.
[0004]
Specifically, the mounting plate 6 is made of a steel plate, and a through hole 6E through which the mounting hole 6A and the operation shaft 3A of the sliding body 3 are inserted is formed. The case 1 is locked to the mounting plate 6.
The case 1 is made of a box-shaped insulating resin whose upper surface is open. The fixed electrode 2 is attached to the inner wall, and the end of the fixed electrode 2 is drawn outward. A sliding body 3 is housed inside the case 1 so as to be movable up and down, and an operation portion 3A at the upper end of the sliding body 3 projects from the opening of the case 1. The contact piece 4 is attached to the lower surface of the sliding body 3. A coil spring 5 is mounted between the bottom of the case 1 and the lower surface of the sliding body 3 in a slightly bent state, and biases the sliding body 3 upward.
[0005]
Further, a waterproof cover 7 formed of rubber, thermoplastic elastomer or the like is attached so as to cover the upper surface of the attachment plate 6 and the opening of the case 1.
In the vehicle door switch configured as described above, the mounting hole 6A of the mounting plate 6 is mounted on the chassis on the vehicle main body side facing the door end portion by screws (not shown). An end portion of the fixed electrode 2 protruding outward from the mounting plate 6 or the case 1 is connected to a room lamp or the like via an electronic circuit (not shown) of the automobile.
[0006]
When the door is closed, the operation portion 3A covered with the waterproof cover 7 is pressed, and the sliding body 3 and the contact piece 4 are pushed into the back of the case 1 against the bias of the coil spring 5, and the contact piece 4 Is away from the ground contact 6 </ b> B of the mounting plate 6, the room light is turned off.
[0007]
When the door is opened, the pressing of the operation portion 3A is released, the sliding body 3 and the contact piece 4 urged by the coil spring 5 move upward, and the contact piece 4 becomes the ground contact 6B. The interior light is lit to make an elastic contact.
[0008]
[Problems to be solved by the invention]
However, in the above conventional vehicle door switch, when the door is open, the operation portion 3A protrudes from the vehicle main body by about 15 to 25 mm. If it hits or is stepped on with a foot attached to the step position, the operation part 3A molded with PBT (polybutylene terephthalate) or the like may break or break the waterproof cover 7, etc. There is a problem that defects are likely to occur.
[0009]
The present invention solves such a conventional problem, and an object of the present invention is to provide a vehicle door switch that is less likely to be damaged even when an external force is applied and that is stable in operation.
[0010]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a vehicle door switch having a case with an open top surface, a sliding body that is housed in the case so as to be movable up and down, and that is electrically connected to and separated by vertical movement, and an upper end of the case. protrudes from the lower end opening is made of an operation body which is consolidated in the upper end of the sliding body, by inserting the first pin into a locking hole formed in the upper end of the sliding member, it is provided at the lower end of the operating body By inserting and connecting a second pin between a locking hole and a through hole provided in an intermediate portion of the first pin, the operating body is moved around the axis of the first pin and the second pin. The operating body is pivotably supported around the axis of the slider, and the operating body is swingably connected to the front, rear, left and right of the sliding body, and a coil spring is interposed between the operating body and the sliding body. since that urges the completion of the operation member upwardly, projecting when the vehicle body side of the chassis mounting Serial operation body, since a universal joint is swingably joined to and fro, there is no breakage of the components even when an external force is applied, it is possible to obtain a stable door switch for a vehicle operation.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the vehicle door switch of the present invention will be described based on each embodiment shown in FIGS.
[0016]
In addition, the same code | symbol is attached | subjected and demonstrated to the part of the same structure as the structure demonstrated in the term of the prior art.
(Embodiment 1)
1 to 5 show (Embodiment 1) of the present invention.
[0017]
FIG. 1 is a sectional view of a vehicle door switch according to (Embodiment 1) of the present invention, and FIG. 2 is an exploded perspective view thereof.
The sensing lever that pushes the contact piece 4 into the back side of the case 1 by the action of an external force is conventionally formed by integrally molding the operating shaft 3A on the upper end of the sliding body 3, but this (Embodiment 1) The sensing lever 27 </ b> A is assembled by the sliding body 13, the operating body 14, the pins 15 and 16, and the coil spring 17. Others are the same as before.
[0018]
The sliding body 13 is housed inside the case 1 so as to be movable up and down, and a contact piece 4 is mounted on the lower surface thereof. Two locking holes 13 </ b> A are provided in the upper part of the sliding body 13. Two locking holes 14 </ b> A are provided at the lower end of the operating body 14.
[0019]
The universal joint for connecting the sliding body 13 and the operating body 14 is configured as shown in FIG.
The side surface of the intermediate portion of the pin 15 inserted into the locking hole 13A of the sliding body 13 is cut into a flat surface 15B with a width W2 wider than the width W1 of the lower end of the operating body 14, and is formed at the center thereof. A through hole 15A into which the pin 16 is inserted is formed. In the assembly process, the pin 15 is inserted into the locking hole 13A of the sliding body 13 and the pin 15 is inserted from the locking hole 14A to the through hole 15A of the pin 15 so that the flat surface 15B of the pin 15 is sandwiched between the two locking holes 14A. The operating body 14 is inserted so as to be pivotable about the axis of the pin 15 and the axis of the pin 16, and the operating body 14 is swingably connected to the front, rear, left and right of the sliding body 13. . When the pin 16 is inserted, the coil spring 17 is interposed between the operating body 14 and the sliding body 13 in a slightly bent state, and the operating body 14 after the connection is completed is biased upward.
[0020]
The sensing lever 27A assembled in this way is housed in a box-shaped insulating resin case 1 having an opening on the upper surface so as to be movable up and down. Here, the point that the fixed electrode 2 is attached to the case 1, the point that the case 1 is attached to the steel attachment plate 6, the waterproof cover 7 so as to cover the upper surface of the attachment plate 6 and the opening of the case 1. The point etc. which are attached are the same as before.
[0021]
A coil spring 5 is mounted in a slightly bent state between the sliding body 13 accommodated inside the case 1 so as to be movable up and down and the bottom portion of the case 1, and biases the sliding body 13 upward. . A contact piece 4 is mounted on the lower surface of the sliding body 13.
[0022]
In the vehicle door switch configured as described above, the mounting hole 6A of the mounting plate 6 is mounted to the chassis 20 on the vehicle main body side facing the door end as shown in FIG. 4 by screws (not shown). . Further, the mounting plate 6 and the end of the fixed contact 2 projecting outward are connected to an interior lamp or the like via an electronic circuit (not shown) of the automobile.
[0023]
When the door is closed, as shown in FIG. 4, the operating body 14 covered with the waterproof cover 7 is pressed by the door end 21, and the sliding body 13 joined to the operating body 14 deflects the coil spring 5. However, since the contact piece 4 mounted on the sliding body 13 moves away from the ground contact 6B, the interior light is turned off as in the case of the conventional technique.
[0024]
Further, when the door is opened, the door end 21 is separated from the operating body 14, the sliding body 13 biased by the coil spring 5 moves upward, and the contact piece 4 comes into elastic contact with the ground contact 6B. The lighting of the room light is the same as in the case of the prior art.
[0025]
However, when an external force is applied from the side to the operation body 14 that protrudes when the occupant's body or luggage hits, as shown in FIG. When the operating body 14 falls down to release the external force and the external force is removed, the operating state is restored to the original state by the urging force of the coil spring 17, so that the operating portion is broken or damaged as in the conventional case, and the waterproof cover 7 is torn. It is unlikely to occur, and stable switch operation can be expected over a long period.
[0038]
【The invention's effect】
As described above, according to the present invention, even when an external force is applied, there is an advantageous effect that it is possible to obtain a vehicular door switch that is stable and does not break components.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a vehicle door switch according to (Embodiment 1) of the present invention. FIG. 2 is an exploded perspective view of the embodiment. FIG. 3 is an enlarged view of the main part of FIG. FIG. 5 is a sectional view of the embodiment when the external force is applied. FIG. 6 is a sectional view of a conventional vehicle door switch.
DESCRIPTION OF SYMBOLS 1 Case 2 Fixed electrode 4 Contact piece 5 Coil spring 6 Mounting plate 6A Mounting hole 6B Ground contact 6E Through-hole 7 Waterproof cover 13, 23 Sliding body 14, 24 Operating body 15, 16 Pin

Claims (1)

A case with an open top;
A sliding body that is housed in this case so as to be movable up and down, and that makes electrical contact and separation by vertical movement,
Upper inserts a first pin engaging holes project from a lower end opening Ri Do and an operating body that is concatenated to the upper end of the sliding member, provided at the upper end of the sliding member of the case, the operation By inserting and connecting a second pin between a locking hole provided at the lower end of the body and a through-hole provided in an intermediate portion of the first pin, the operating body is connected to the axis of the first pin. The operating body is pivotally supported around the shaft and the axis of the second pin, and the operating body is pivotably connected to the front, rear, left and right of the sliding body, and a coil spring is provided between the operating body and the sliding body. A door switch for a vehicle that urges the operation body after the connection is completed by interposing it .

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