JPH04296415A - Switch body of vehicle door-lock device - Google Patents

Abstract

PURPOSE:To provide contact pressure not dispersed by constituting a switch body with a common terminal, a pair of signal terminal juxtaposed in the radial direction of an output axis for a lock-lever, and a movable insulating pin. CONSTITUTION:A small reduction gear 'e' is rotated by a motor 'c', a worm gear 'g' is rotated by interlocking of the gear 'e' and a large reduction gear 'f', and a sector gear 'h' is rotated by interlocking of the worm gear 'g' and a rack 'i', so that a revolving lever 1, whose pin 2 engages with a circular hole 3 of the gear 'h', rotates to rotate a lock-lever of a locking device via an output axis 'j' fixed in the level 1. When a movalbe insulating pin 4 moves right and left by means of the revolution of the lever 1 a signal terminal 7 on one side is released from a common terminal 6 by the pin 4 and becomes off and a signal terminal 7 on the other side contacts with the common terminal 6 by means of its self resilient force, and becomes on. The position of the output axis 'j' can be detected by monitoring the on-off.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch body for a vehicle door lock device.

0002

[Prior Art] In the conventionally known Japanese Patent Application Laid-open No. 2-221578, an actuator case a is integrally formed and connected to the lower side of a synthetic resin body of a locking device to be attached to a door. The lid is fixed with a screw b, a small reduction gear e is fixed to a drive shaft d of a motor c, a large reduction gear f is meshed with the small reduction gear e, and a worm is attached to the shaft of the large reduction gear f. A rack gear i of a sector gear h is meshed with the worm g, an output shaft j is loosely inserted into the base of the sector gear h, and the output shaft j is connected to the sector gear h. h
A rotor k that engages with the rotor k with play is fixed, and the rotor k
A structure in which a movable switch terminal m is attached to the front side of the board, a plate s is fixed on top of the movable switch terminal m with a screw n, and a switch plate p with a fixed switch terminal o provided on the back side of the plate s is fixed with a screw r. It is written about.

0003

[Problem to be solved by the invention] The above-mentioned known examples are as follows:
A movable switch terminal m and a fixed switch terminal o are arranged side by side in the axial direction of an output shaft j, and a highly elastic brush of the movable switch terminal m is slid to stroke the surface of the fixed switch terminal o. However, when such a highly elastic brush is used, variations in contact pressure inevitably occur due to play in the axial direction of the output shaft j. In order to prevent variations in contact pressure, it is possible to give stronger elasticity to the brush of the movable switch terminal m, or to increase the contact area by making each contact larger, but in either case, the switch mechanism becomes large, Challenges remain.

0004

[Means for Solving the Problems] Therefore, the present invention provides a motor c provided in an actuator case a, a rotary lever 1 which is oscillated between a lock position and an unlock position by the motor c, and a rotary lever 1 a lock lever output shaft j fixed to the base of the rotary lever 1 and rotating together with the rotary lever 1;
and a switch body for detecting the rotational position of the output shaft j, the switch body having a common terminal 6 and a pair of signals arranged in parallel in the radial direction of the output shaft j with respect to the common terminal 6. It consists of a terminal 7 and a movable insulating pin 4 projected from the swinging part of the rotary lever 1 parallel to the output shaft j, and the common terminal 6 and the pair of signal terminals 7 can be elastically directly short-circuited. The movable insulating pin 4 is a switch body of a vehicle door lock device configured to move between the common terminal 6 and the signal terminal 7 to insulate them.

[0005]

[Example] An example of the present invention will be explained with reference to the drawings.
The present invention comprises the actuator case a of the known example, a lid fixed by a screw b, a small reduction gear e attached to the drive shaft d of the motor c, and a large reduction gear f meshing with the small reduction gear e.
, the structure of the worm g formed on the shaft of the large reduction gear f, the rack gear i of the sector gear h meshing with the worm g, and the output shaft j loosely inserted into the base of the sector gear h is the same as that of the earlier application. The structure shown in FIG. 1 is used.

[0006] Reference numeral 1 designates a rotary lever corresponding to the rotor k of the known example, and the rotary lever 1 is provided with a pin 2 that protrudes toward the fan-shaped gear h. It is configured to engage with the circular arc hole 3 formed in h and rotate in conjunction with the fan-shaped gear h with some play (it is also possible to integrate the fan-shaped gear h and the rotary lever 1 without providing any play). A movable insulating pin 4 projecting parallel to the output shaft j is fixed to the tip of the rotary lever 1. The movable insulating pin 4 is entirely made of an insulating material, or at least its outer peripheral surface is covered with an insulating material.

Reference numeral 6 indicates a common terminal bent into a substantially M shape, and 7 indicates a pair of left and right signal terminals.The common terminal 6 and the signal terminal 7 are arranged in parallel in the radial direction of the output shaft j. The common terminal 6 and the signal terminal 7 become part of a switch body that detects the position of the output shaft j. The bases of the common terminal 6 and the signal terminal 7 are attached to a resin base 5 fixed to the actuator case a. The mounting method may be arbitrary, and all bases may be fixed, or one base of the common terminal 6 may be fitted into the base 5 as shown in FIG. giving a predetermined elasticity to the common terminal 6 and the signal terminal 7;
It is constructed so that it can be elastically short-circuited directly.

The movable insulating pin 4 faces between the common terminal 6 and the signal terminal 7, and when the movable insulating pin 4 is in the central neutral position, both signal terminals 7 are released from the common terminal 6, and eventually When the movable insulating pin 4 moves left and right, the common terminal 6 and one signal terminal 7 remain off, and the other signal terminal 7 resiliently contacts the common terminal 6 and turns on.

[0009]

[Effect] Next, the effect will be described. In the present invention, when the small reduction gear e is rotated by the motor c, the worm g is rotated by the meshing of the small reduction gear e and the large reduction gear f, and the sector gear h is rotated by the meshing of the worm g and the rack gear i. The rotary lever 1, in which the pin 2 is engaged with the circular arc hole 3 of the sector gear h, rotates, and the lock lever of the locking device rotates via the output shaft j fixed to the rotary lever 1.

When the movable insulating pin 4 made of an insulating material moves left and right due to the rotation of the rotary lever 1, one signal terminal 7 is released from the common terminal 6 by the movable insulating pin 4 and turned off, and the other signal terminal 7 is turned off. Due to its own elasticity, the signal terminal 7 comes into contact with the common terminal 6 and turns on. By monitoring this on/off, the position of the output shaft j can be detected.

[0011]The common terminal 6 and signal terminal 7 for detecting the operating position of the output shaft j are arranged in the radial direction of the output shaft j, which has sufficient space, and are connected to a movable insulating pin provided on the rotary lever 1. 4, the common terminal 6 and signal terminal 7 are turned on and off, and the known sliding brush is not used.
A highly reliable contact pressure with little variation can be obtained, and the output shaft j can be made thinner in the axial direction.

0012

As described above, the present invention provides a motor c provided in an actuator case a, a rotary lever 1 which is oscillated between a lock position and an unlock position by the motor c, and a rotary lever 1. A lock lever output shaft j that is fixed to the base of the lock lever and rotates together with the rotary lever 1, and a switch body that detects the rotational position of the output shaft j, the switch body having a common terminal 6, a pair of signal terminals 7 arranged in parallel in the radial direction of the output shaft j with respect to the common terminal 6; a movable insulating pin 4 protruding from the swinging portion of the rotary lever 1 in parallel with the output shaft j; Consisting of
The common terminal 6 and the pair of signal terminals 7 can be elastically short-circuited directly, and the movable insulating pin 4 can move between the common terminal 6 and the signal terminal 7 to insulate them. Since it is used as a switch body for a vehicle door lock device, highly reliable contact pressure with little variation can be obtained, and the output shaft j can be made thinner in the axial direction.

[Brief explanation of drawings]

FIG. 1: A diagram of a known example.

[Fig. 2] Front view of the switch body.

[Fig. 3] Vertical side view of the switch body.

[Explanation of symbols]

a...Case, b...Screw, c...Motor, d...Drive shaft, e...
Small reduction gear, f... Large reduction gear, g... Worm, h... Sector gear, i... Rack gear, j... Output shaft, 1... Rotating lever,
2... Pin, 3... Arc hole, 4... Movable insulating pin, 5... Resin base, 6... Common terminal, 7... Signal terminal.

Claims (1)

[Claims] 1. A motor c provided in an actuator case a, a rotary lever 1 which is oscillated between a lock position and an unlock position by the motor c, and a rotary lever fixed to the base of the rotary lever 1. 1, and a switch body for detecting the rotational position of the output shaft j, the switch body has a common terminal 6 and a lock lever output shaft axis j
It consists of a pair of signal terminals 7 arranged in parallel in the radial direction of A switch body for a vehicle door lock device, in which the signal terminal 7 can be elastically short-circuited directly, and the movable insulating pin 4 can move between the common terminal 6 and the signal terminal 7 to insulate them. .