LOCK UNIT HAVING A MULTI-PAWL LOCKING MECHANISM

• US 20110210565A1
• Filed: 11/05/2009
• Published: 09/01/2011
• Est. Priority Date: 11/19/2008
• Status: Active Grant

• Current Assignee: Kiekert AG (Lingyun Industrial Corporation Limited)
• Original Assignee: Kiekert AG (Lingyun Industrial Corporation Limited)
• Inventors: Scholz, Michael, Dragon, Marek
• Granted Patent: US 9,151,092 B2
• Time in Patent Office: Days
• US Class Current: 292/200
• CPC Class Codes: E05B 85/26 Cooperation between bolts and detents
• CPC Class Codes: Y10T 292/108 Lever

Abstract

A lock unit (1) comprising at least one catch (2), a first pawl (3) with a pawl rotation axis (4), and a blocking lever (5), wherein in a locked state of the lock unit (1), the catch (2) transfers a moment of rotation onto the first pawl (3) and the first pawl (3) is held in place by means of the blocking lever (5), wherein a second pawl (6) is pivotably arranged on the pawl rotation axis (4) and is engageable with the blocking lever (5) and the catch (2), and the first pawl (3) has a curved first blocking surface (12) for the primary position (13) of the catch (2).

Claims

1. A lock unit (1) comprising at least one catch (2), a first pawl (3) with a pawl rotation axis (4), and a blocking lever (5), wherein in a locked state of the lock unit (1), said catch (2) transfers a moment of rotation onto said first pawl (3) and said first pawl (3) is held in place by means of said blocking lever (5), wherein a second pawl (6) is pivotably arranged on said pawl rotation axis (4) and is engageable with said blocking lever (5) and said catch (2), and said first pawl (3) has a curved first blocking surface (12) for a primary position (13) of the catch (2).

2. The lock unit (1) of claim 1, wherein said blocking lever (5) comprises:

at least a first actuating arm (7) for said first pawl (3), a second actuating arm (8) for said second pawl (6), and a cantilever arm (9) for at least a reset element (10).

3. The lock unit (1) of claim 2, wherein said blocking lever (5) has a pivot axis (11), with respect to which said cantilever arm (9) is disposed opposite to said first actuating arm (7) and said second actuating arm (8).

4. The lock unit (1) of claim 2, wherein said blocking lever (5) with said cantilever arm (9) contacts said reset element (10) only at certain times.

5. The lock unit (1) of claim 1, wherein said first pawl (3) has said first blocking surface (12) for said primary position (13) of said catch (2) and a stop surface (15) for said blocking lever (5), wherein said first blocking surface (12) and said stop surface (15) are distanced differently from the pawl pivot axis (4).

6. The lock unit (1) of claim 1, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

7. A motor vehicle (17) comprising at least a lock unit (1) of claim 1.

8. The lock unit (1) of claim 3, wherein said blocking lever (5) with said cantilever arm (9) contacts said reset element (10) only at certain times.

9. The lock unit (1) of claim 2, wherein said first pawl (3) has said first blocking surface (12) for said primary position (13) of said catch (2) and a stop surface (15) for said blocking lever (5), wherein said first blocking surface (12) and said stop surface (15) are distanced differently from the pawl pivot axis (4).

10. The lock unit (1) of claim 3, wherein said first pawl (3) has said first blocking surface (12) for said primary position (13) of said catch (2) and a stop surface (15) for said blocking lever (5), wherein said first blocking surface (12) and said stop surface (15) are distanced differently from the pawl pivot axis (4).

11. The lock unit (1) of claim 4, wherein said first pawl (3) has said first blocking surface (12) for said primary position (13) of said catch (2) and a stop surface (15) for said blocking lever (5), wherein said first blocking surface (12) and said stop surface (15) are distanced differently from the pawl pivot axis (4).

12. The lock unit (1) of claim 8, wherein said first pawl (3) has said first blocking surface (12) for said primary position (13) of said catch (2) and a stop surface (15) for said blocking lever (5), wherein said first blocking surface (12) and said stop surface (15) are distanced differently from the pawl pivot axis (4).

13. The lock unit (1) of claim 2, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

14. The lock unit (1) of claim 3, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

15. The lock unit (1) of claim 4, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

16. The lock unit (1) of claim 5, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

17. The lock unit (1) of claim 8, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

18. The lock unit (1) of claim 9, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

19. The lock unit (1) of claim 10, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).

20. The lock unit (1) of claim 11, wherein said first pawl (3) neighboring said stop surface (15) for said blocking lever (5) has a recess (16) for said first actuating arm (7).