DOOR LOCK APPARATUS

• US 20090243308A1
• Filed: 02/12/2009
• Published: 10/01/2009
• Est. Priority Date: 03/26/2008
• Status: Active Grant

• Current Assignee: Mitsui Kinzoku Act Corporation (Mitsui Mining and Smelting Company Limited)
• Original Assignee: Mitsui Mining and Smelting Company Limited
• Inventors: ISHIGURO, Katsuyuki, Taga, Takao
• Granted Patent: US 8,403,379 B2
• Time in Patent Office: Days
• US Class Current: 292/196
• CPC Class Codes: E05B 17/041 Coupling device with a shaft projecting axially rearwardly from the cylinder, e.g. affording a degree of universal motion to compensate for misalignment
• CPC Class Codes: E05B 77/28 for anti-theft purposes, e.g. double-locking or super-locking
• CPC Class Codes: E05B 77/283 initiated by hand actuation, e.g. by using a mechanical key
• CPC Class Codes: E05B 81/06 using rotary motors
• CPC Class Codes: E05B 81/16 operating on locking elements for locking or unlocking action
• CPC Class Codes: E05B 85/06 Lock cylinder arrangements
• CPC Class Codes: E05B 85/26 Cooperation between bolts and detents
• CPC Class Codes: Y10T 292/1043 Swinging
• CPC Class Codes: Y10T 292/1047 Closure
• CPC Class Codes: Y10T 292/1076 Link and lever
• CPC Class Codes: Y10T 292/1082 Motor

Abstract

A door lock apparatus, at both sides of a region interposing a second link lever therebetween, includes a sector lever shaft and an inside lever shaft that extend in parallel with a swinging shaft of the second link lever. The door lock apparatus also includes an inside handle lever swingably arranged about the inside lever shaft, and when an inside door handle arranged inside a vehicle is open-operated while the second link lever is disposed in a cancel position, moves the second link lever upwards by swinging about the center of the inside lever shaft, and when the inside door handle is open-operated while the second link lever is disposed in a non-cancel position, swings the sector lever in a locked position to an unlocked position about the center of the sector lever shaft, by swinging about the center of the inside lever shaft.

Claims

1. A door lock apparatus comprising:

a latch mechanism that restricts movement of a door in an open direction by latching when the door is in a closed position with respect to a vehicle main body;

a link lever that swings between a cancel position and a non-cancel position, the link lever allowing movement of the door in the open direction by cancelling a latched state of the latch mechanism when moved upwards while being disposed in the cancel position, the link lever maintaining the latched state of the latch mechanism when moved upwards while being disposed in the non-cancel position;

a sector lever shaft and an inside lever shaft that are disposed on both sides of the link lever and extend in parallel with a swinging shaft of the link lever;

a sector lever that is swingably disposed between an unlocked position and a locked position about the sector lever shaft, the sector lever moving the link lever to the cancel position while in the unlocked position, and moving the link lever to the non-cancel position while in the locked position; and

an inside handle lever that is swingably disposed about the inside lever shaft, the inside handle lever moving the link lever upward by swinging about a center of the inside lever shaft when an inside door handle arranged inside a vehicle is open-operated while the link lever is being positioned in the cancel position, and swinging the sector lever in the locked position to the unlocked position by swinging about the center of the inside lever shaft when the inside door handle is open-operated while the link lever is being positioned in the non-cancel position.