Claims
- 1. A lock/interlock mechanism for use with a unit having an interior surface and at least two drawers moveable between open and closed positions, said mechanism comprising:
- an elongated lock member having a plurality of lock elements positioned thereon in vertically spaced relationship;
- mounting means on the interior surface of the unit for mounting said lock member for movement between unlocked and locked positions;
- a plurality of force generating means on the interior surface of the unit and operatively connected to said lock member for applying a force to the lock member when a drawer is moved towards an open position, said force generated by each force generating means being less than the force needed to move the lock member to the locked position but sufficient so that when two of said force generating means apply their respective forces, said lock member is moved to the locked position; and
- a plurality of control means, one on each of said drawers, for allowing said force generating means to apply their forces on said lock member upon opening movement of the drawers.
- 2. A mechanism as defined by claim 1 wherein each of said control means comprises an elongated catch member fixed to a drawer and having a portion engaging one of said force generating means when the drawer is in a closed position.
- 3. A mechanism as defined by claim 2 wherein each of said catches defines a hook portion dimensioned to engage one of the lock elements and prevent opening of a drawer when said lock member is in the locked position.
- 4. A mechanism as defined by claim 3 wherein each of said force generating means comprises:
- an arm mounted on the interior surface of the unit, said arm having an end engagable with said lock member and another end; and
- biasing means operatively connected to said arm for continually biasing said arm for movement in a direction applying the force to said lock member.
- 5. A mechanism as defined by claim 4 wherein said biasing means comprises a weight joined to said arm, and pivot means between said arm and said weight for pivotally mounting said arm and weight to the interior surface of said unit.
- 6. A mechanism as defined by claim 5 further comprising a spring connected to said lock member for resiliently biasing said lock member to an unlocked position.
- 7. A mechanism as defined by claim 6 wherein said lock member is an elongated, flexible tape.
- 8. A mechanism as defined by claim 4 wherein said biasing means comprises a spring joined to said arm.
- 9. A mechanism as defined by claim 8 further comprising a spring connected to said lock member for resiliently biasing said lock member to an unlocked position.
- 10. A mechanism as defined by claim 9 wherein said lock member is an elongated, flexible tape.
- 11. A mechanism as defined by claim 10 wherein an end of said tape defines an elongated slot.
- 12. A mechanism as defined by claim 11 further comprising a lock actuator having an actuator member disposed within said slot, said slot dimensioned to permit said lock member to move to the locked position when the lock actuator is in an unlocked position.
- 13. A lock/interlock mechanism for use with a unit having an interior surface and at least two drawers moveable between open and closed positions, said mechanism comprising:
- an elongated lock member comprising a flexible tape having a plurality of lock elements positioned thereon in vertically spaced relationship;
- mounting means on the interior surface of the unit for mounting said lock member for movement between unlocked and locked positions;
- a plurality of force generating means on the interior surface of the unit and operatively connected to said lock member for applying a force to the lock member when a drawer is moved towards an open position, said force generated by each force generating means being less than the force needed to move the lock member to the locked position but sufficient so that when two of said force generating means apply their respective forces, said lock member is moved to the locked position; and
- a plurality of control means, one on each of said drawers, for allowing said force generating means to apply their forces on said lock member upon opening movement of the drawers.
- 14. A mechanism as defined by claim 13 wherein each of said control means comprises an elongated catch member fixed to a drawer and having a portion engaging one of said force generating means when the drawer is in a closed position.
- 15. A mechanism as defined by claim 14 wherein each of said catches defines a hook portion dimensioned to engage one of the lock studs and prevent opening of a drawer when said lock member is in the locked position.
- 16. A mechanism as defined by claim 15 wherein each of said force generating means comprises:
- an arm mounted on the interior surface of the unit, said arm having an end engagable with said lock member and another end; and
- biasing means operatively connected to said arm for continually biasing said arm for movement in a direction applying the force to said lock member.
- 17. A mechanism as defined by claim 10 wherein said biasing means comprises a weight joined to said arm and pivot means between said arm and said weight for pivotally mounting said arm and weight to the interior surface of said unit.
- 18. A mechanism as defined by claim 17 further comprising a spring connected to said lock member for resiliently biasing said lock member to an unlocked position.
- 19. A mechanism as defined by claim 16 wherein said biasing means comprises a spring joined to said arm.
- 20. A mechanism as defined by claim 19 further comprising a spring connected to said lock member for resiliently biasing said lock member to an unlocked position.
Parent Case Info
This is a divisional of application Ser. No. 08/628,551, filed on Apr. 10, 1996, now U.S. Pat. No. 5,709,442, which is a divisional of Ser. No. 08/138,638, filed Oct. 15, 1993, now U.S. Pat. No. 5,533,798, issued on Jul. 9, 1996.
US Referenced Citations (36)
Foreign Referenced Citations (2)
Number |
Date |
Country |
92357 |
Jan 1922 |
CHX |
1579315 |
Nov 1980 |
GBX |
Divisions (2)
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Number |
Date |
Country |
Parent |
628551 |
Apr 1996 |
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Parent |
138638 |
Oct 1993 |
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