Device for locking and unlocking a door, in particular a motor vehicle door

• US 6,247,343 B1
• Filed: 06/01/1999
• Issued: 06/19/2001
• Est. Priority Date: 05/30/1998
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Weyerstall, Bernd, Weiss, Karl-Ernst
• Primary Examiner(s): Browne, Lynne H.
• Assistant Examiner(s): Walsh, John B.
• Application Number:
  US09/323,566
• Time in Patent Office: 749 Days
• Field of Search: 702/77, 702/781, 292/DIG.31, 292/336.3
• US Class Current: 70/277
• CPC Class Codes: E05B 77/12 Automatic locking or unlocking at the moment of collision
• CPC Class Codes: E05B 81/78 as part of a hands-free locking or unlocking operation
• CPC Class Codes: E05B 85/18 a longitudinal grip part being pivoted about an axis parallel to the longitudinal axis of the grip part
• CPC Class Codes: G07C 2009/00769 with data transmission performed by wireless means
• CPC Class Codes: Y10T 292/57 Operators with knobs or handles
• CPC Class Codes: Y10T 70/7062 Electrical type [e.g., solenoid]

Abstract

A device for locking and unlocking a door, in particular a motor vehicle door, has an electric lock and a door handle, with the transmission of query information to a portable electronic authorization ID means being initiatable via a control unit provided for the door when the door handle is operated out of the resting position in opposite directions, with the authorization ID means causing the transmission of identification information on receipt of the query information, and with the control unit comparing the identification information received with predetermined authorized identification information and, if it agrees with some of the predefined identification information, the locking of the door or its unlocking with the release of the catch is executed or canceled by controlling the electric lock. The operating reliability of the system is greatly increased with simple handling due to the fact that the door handle can be swivelled up and down about a horizontal swiveling axis in a handle recess in the door, and it can be reset automatically into the starting center position again by spring elements after the door handle is released, and electric switches can be actuated in the switch positions of the door handle, initiating the identification and the locking procedure as well as the identification and the unlocking procedure.

Claims

1. A locking device, comprising:

a door;

a handle depression in the door;

a control unit associated with the door;

an electric lock coupled to the control unit;

a portable electronic authorization ID arrangement;

a door handle, wherein the door handle is adapted to be swivelled up out of a starting center position into an up position, and swivelled down out of the starting center position into a down position, about a horizontal swivelling axis in the handle depression in the door;

wherein, upon an operation of the door handle out of the starting center position into one of the up and down positions, the control unit initiates a transmission of query information to the authorization ID arrangement, the authorization ID arrangement causes a transmission of identification information to the control unit upon receiving the query information from the control unit, the control unit compares the identification information with predetermined authorized identification information, and, if the identification information received from the authorization ID arrangement agrees with the predetermined authorized identification information, the control unit controls the electric lock to execute or cancel one of a locking or an unlocking of the door;

a first spring element for automatically resetting the door handle into the starting center position after the door handle is released from the up position;

a second spring element for automatically resetting the door handle into the starting center position after the door handle is released from the down position; and

electric switches for initiating, on the one hand, an identification procedure and a locking procedure and, on the other hand, an identification procedure and an unlocking procedure, the electric switches being actuated in switch positions of the door handle.

2. The device according to claim 1, wherein the door handle is adapted to be moved out of a latched resting position in two adjustment directions by an actuating force.

3. The device according to claim 1, wherein, when the door handle is swivelled downward, one of the switches that is operated initiates the identification procedure and the locking procedure, and when the door handle is swivelled upward, another one of the switches that is operated initiates the identification procedure and the unlocking procedure and an opening procedure.

4. The device according to claim 1, wherein, in the starting center position, the door handle is arranged flush or countersunk in the handle depression.

5. The device according to claim 1, wherein the handle depression is oval and is situated with a longitudinal axis being horizontal.

6. The device according to claim 1, wherein the door handle has a neck which is extended beyond the swivelling axis and extends further into the door, and the first and second spring elements which act in opposite directions are mounted on the neck.

7. The device according to claim 6, wherein the spring elements are accommodated in the door so that the first and second spring elements are vertically oriented, and the neck is situated on the door handle so that the neck is symmetrical with a horizontal center plane.

8. The device according to claim 1, wherein the electric switches are situated in an area of the handle depression in the door so that the electric switches are actuated by switch points integrally molded on the door handle with respective swivelling movements of the door handle.

9. The device according to claim 8, wherein the switch points are integrally molded on a part of the door handle which is located farther inside the door in comparison with the swivelling axis.

10. The device according to claim 1, wherein the swivelling axis of the door handle is arranged behind the handle depression in the door, and the handle depression is symmetrical with a horizontal center plane of the door handle in the starting center position.

11. The device according to claim 1, wherein the door handle has a bow shape and two legs inserted into the door, and the switches, the first and second spring elements, a neck and switch points are assigned to one of the legs.