Lock system

• US 5,394,716 A
• Filed: 12/04/1992
• Issued: 03/07/1995
• Est. Priority Date: 02/27/1991
• Status: Expired due to Fees

• Current Assignee: Eusecur-AG
• Original Assignee: Maurice Ries
• Inventors: Dreyer, Kurt
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): JAYNE, DARNELL M
• Application Number:
  US07/946,302
• Time in Patent Office: 823 Days
• Field of Search: 70/276, 70/137, 70/139, 292/251.5, 292/201
• US Class Current: 70/276
• CPC Class Codes: E05B 47/0038 using permanent magnets
• CPC Class Codes: Y10T 292/11 Magnetic
• CPC Class Codes: Y10T 70/5354 With hooked end
• CPC Class Codes: Y10T 70/7057 Permanent magnet

Abstract

The invention concerns a lock system for a door, wall, chest, safe or cupboard, etc. The lock system is covered by a cover plate and has a bolt or pin which is linked to a main lever, designed to rotate about a pivot bearing, and which operates in conjunction with a holder plate or bolt. Rotation of the main lever depends on the motion of a first magnetic block mounted on the cover plate. The main lever has at least one bore designed to accommodate at least one locking pin associated with a second magnetic block mounted on the cover plate. The second magnetic block is designed to unlock the lock by pulling the locking pins out of the bores.

Claims

1. A lock system in a door, wall, chest, safe or cupboard, said lock system being covered by an outer plate and comprising:

a main lever rotating about a pivot bearing and having a first magnetic block arranged thereon, said main lever cooperating with a holding means in a surrounding structure via a latch mechanism;

said latch mechanism including a locking bolt for entering a locking groove in said holding means or a first gripper coupled to said main lever for engaging a corresponding bolt;

said outer plate having a second magnetic block attached thereto, said second magnetic block cooperating with said first magnetic block and causing through its movement rotation of the main lever;

said main lever having at least one bore for receiving at least one retaining pin;

said outer plate having a third magnetic block for pulling said at least one retaining pin out of said at least one bore;

said pivot bearing forming a mid-point for a multiplicity of circular paths on which said at least one bore moves about the pivot bearing; and

said at least one retaining pin comprising a multiplicity of retaining pins along said circular paths.

2. The lock system of claim 1 further comprising:

a detent bore provided on one of said circular paths for receiving one of said retaining pins for fixing the main lever in a position other than a closing position.

3. The lock system of claim 1 further comprising:

a fourth magnetic block;

said fourth magnetic block including said pivot bearing and said retaining pins; and

said fourth magnetic block further including at least one of pull magnets and push magnets for causing movement of said retaining pins.

4. The lock system of claim 3 wherein:

said third magnetic block has a number of magnets identical in number to and congruent to said magnets in said fourth magnetic block.

5. The lock system of claim 1 wherein:

said first magnetic block includes at least two pull magnets.

6. The lock system of claim 5 wherein:

said second magnetic block has a number of congruent pull magnets provided in the same number as in said pull magnets in said first magnetic block.

7. The lock system of claim 1 further comprising:

a first toothed quadrant or a first rack fixed to the main lever;

a first spur gearwheel and a magnetic wheel seated on a rotary shaft;

said first toothed quadrant or said first rack cooperating with said first spur gearwheel; and

said magnetic wheel cooperating with the second magnetic block during its rotational movement.

8. The lock system of claim 7 further comprising:

a second spur gearwheel seated on said rotary shaft; and

said second spur gearwheel cooperating with a second toothed quadrant or a second rack mounted to a second lever.

9. The lock system of claim 8 further comprising:

said second spur gearwheel cooperating with a second toothed quadrant; and

one of said first and second toothed quadrants engaging over its respective spur gearwheel and a second of said first and second toothed quadrants engaging under its respective spur gearwheel.

10. The lock system of claim 1 further comprising:

said first gripper being formed directly on the main lever.

11. The lock system of claim 1 further comprising:

a second lever having a second gripper thereon; and

said first and second grippers forming gripping pincers.

12. The lock system of claim 1 further comprising:

said corresponding bolt having a lug through which said first gripper passes; and

said holding means including an abutment,

whereby said first gripper enters said abutment after passing through said lug.

13. The lock system of claim according to claim 1 further comprising:

a locking pin for entering a locking depression being arranged opposite the first gripper on said main lever.

14. The lock system of claim 1 further comprising said second magnetic block rotating in a hole of a magnetic key.

15. The lock system of claim 14 further comprising said hole being formed in a main body in which the third magnetic block is also located.

16. The lock system of claim 14 further comprising:

said second magnetic block comprises a rotary housing including an insert portion and an annular shoulder surrounding said insert portion and said insert portion having a diameter slightly smaller than a diameter of a hole into which it is inserted.

17. The lock system of claim 16 further comprising:

said insert portion having a thickness smaller than a thickness of said main body.

18. The lock system of claim 15 further comprising:

magnets inserted into said third magnetic block so that the magnetic key is always fixed to the outer plate; and

said magnets inserted into said third magnetic block including magnets of different sizes and dummy magnets.