Motor vehicle door lock controlling device

• US 5,137,312 A
• Filed: 07/29/1991
• Issued: 08/11/1992
• Est. Priority Date: 07/25/1991
• Status: Expired due to Fees

• Current Assignee: Chien-I Tang
• Original Assignee: Chien-I Tang
• Inventors: Tang, Chien-I
• Primary Examiner(s): MOORE, RICHARD
• Application Number:
  US07/737,257
• Time in Patent Office: 379 Days
• Field of Search: 292/201, 292/336.3, 74/89.5, 74/625
• US Class Current: 292/336.3
• CPC Class Codes: E05B 77/28 for anti-theft purposes, e.g. double-locking or super-locking
• CPC Class Codes: E05B 81/25 Actuators mounted separately from the lock and controlling the lock functions through mechanical connections
• CPC Class Codes: E05B 81/28 Linearly reciprocating elements
• CPC Class Codes: E05B 81/34 of geared transmissions
• CPC Class Codes: E05B 81/40 Nuts or nut-like elements moving along a driven threaded axle
• CPC Class Codes: Y10T 292/1082 Motor
• CPC Class Codes: Y10T 292/57 Operators with knobs or handles

Abstract

A motor vehicle door lock controlling device, comprising a housing having set therein a driven rod which is fastened on the gear shaft of a driven gear through screw joint, a driving motor which has a driving gear mounted on the output shaft thereof and engaged with said driven gear, and a locking control motor which has an oscillating block mounted on the output shaft thereof and controlled to engage in or released from the teeth on said driven gear. Rotating the driving gear causes the driven rod to lock and unlock a door lock. Rotating the locking control motor causes the oscillating block to lock up or release the driven gear. A projecting block is made on the driven rod to trigger a microswitch during the movement of the driven rod, causing said microswitch to produce a corresponding signal to a control box so as to lock or unlock the other linked door locks.

Claims

1. A motor vehicle door lock controlling device, comprising a housing formed of a casing and a cover, said housing defining therein a holding chamber divided by a plurality of partition plates into a plurality of compartments for holding a locking control motor, a driving motor and a driven rod, said housing having a flange at the top defining therein a slot for the sliding therein of said driven rod, said driven rod having a top end extending out of said flange, said top end being connected to a motor vehicle'"'"'s door locks through a link, and a bottom end connected to a screw rod through a screw joint, said screw rod having an opposite end coupled with a driven gear, and characterized in that said locking control and driving motors are disposed in parallel with each other at two opposite sides relative to said driven rod, said driving motor having a driving gear mounted on the output shaft thereof, said driving gear being constantly engaged with said driven gear, said locking control motor having an oscillating block secured to the output shaft thereof, said oscillating block having a shoulder portion releasably engaged in the gap between the teeth on said driven gear to prohibit it from rotary motion when the output shaft of said locking control motor is rotated to a predetermined position.

2. The motor vehicle door lock controlling device of claim 1, wherein said driven rod has a projecting block raised from the peripheral surface thereof at the middle, said projecting block being moved to press on or release from the switch rod by a microswitch when said driven rod moves downwards or upwards.

3. The motor vehicle door lock controlling device of claim 1, wherein said casing has a groove on the peripheral edge thereof in which a rubber packing is fastened to seal the gap between said casing and said cover.