Dual lock having an identification function

• US 20060032274A1
• Filed: 11/30/2004
• Published: 02/16/2006
• Est. Priority Date: 10/08/2004
• Status: Active Grant

• Current Assignee: Chun Te Yu
• Original Assignee: Chun Te Yu
• Inventors: Yu, Chun Te
• Granted Patent: US 7,204,108 B2
• Time in Patent Office: Days
• US Class Current: 70/25
• CPC Class Codes: E05B 37/0034 actuated by either
• CPC Class Codes: E05B 37/025 in padlocks
• CPC Class Codes: E05B 39/00 Locks giving indication of authorised or unauthorised unlocking with key identification means E05B35/001; alarm locks E05B45/00
• CPC Class Codes: E05B 67/24 with built- in cylinder locks
• CPC Class Codes: Y10T 70/415 Combination and/or key-controlled
• CPC Class Codes: Y10T 70/424 Sliding
• CPC Class Codes: Y10T 70/7141 Combination and key
• CPC Class Codes: Y10T 70/7147 Combination or key
• CPC Class Codes: Y10T 70/7407 Operating indicators
• CPC Class Codes: Y10T 70/8027 Condition indicators

Abstract

A dual lock includes a housing, a shackle, a first locking mechanism, an identification member, a second locking mechanism, and an urging member. Thus, the identification zones of the identification member are exposed from the windows of the housing if the dual lock has been unlocked for checking the luggage so as to remind a user to inspect if contents of the luggage that has been checked are missed or lost.

Claims

1. A dual lock, comprising:

a housing having at least one window;

a shackle mounted on the housing and having a first end formed with a pivot shaft pivotally mounted in and axially movable relative to the housing and a second end formed with a locking portion moved with the pivot shaft;

a first locking mechanism mounted in the housing to lock and unlock the pivot shaft of the shackle;

an identification member slidably mounted in the housing and having at least one identification zone that is movable to align with the window of the housing;

a second locking mechanism rotatably mounted in the housing and rotatable between a locking position where the locking portion of the shackle is locked by the second locking mechanism and an unlocking position where the locking portion of the shackle is released from the second locking mechanism and the identification member is moved by the second locking mechanism to align the identification zone of the identification member with the window of the housing.

2. The dual lock in accordance with claim 1, wherein the locking portion of the shackle is rotatable relative to the housing between a closed position where the locking portion of the shackle is locked on the housing and an opened position where the locking portion of the shackle is released from the housing.

3. The dual lock in accordance with claim 1, wherein the first locking mechanism is switched between a locking position where the pivot shaft of the shackle is locked by the first locking mechanism and cannot be axially movable relative to the housing and an unlocking position where the pivot shaft of the shackle is unlocked from the first locking mechanism and is axially movable relative to the housing.

4. The dual lock in accordance with claim 1, wherein the first locking mechanism is number lock, and the pivot shaft of the shackle is extended through the first locking mechanism, so that when numbers of the first locking mechanism are correct, the pivot shaft of the shackle is unlocked from the first locking mechanism and is axially movable relative to the housing, and when one of the numbers of the first locking mechanism is not correct, the pivot shaft of the shackle is locked by the first locking mechanism and cannot be axially movable relative to the housing.

5. The dual lock in accordance with claim 1, wherein the second locking mechanism includes a lock core rotatably mounted in the housing and having an end formed with a drive shaft, and a locking member having a first end secured on the drive shaft of the lock core to rotate therewith and a second end protruding outward from the housing and rotatable between the locking position of the second locking mechanism where the locking portion of the shackle is locked by the locking member of the second locking mechanism and the unlocking position of the second locking mechanism where the locking portion of the shackle is released from the locking member of the second locking mechanism.

6. The dual lock in accordance with claim 5, wherein the second end of the locking member of the second locking mechanism has an end face formed with a locking recess having an end extended through a peripheral wall of the locking member to lock and unlock the locking portion of the shackle.

7. The dual lock in accordance with claim 6, wherein when the locking member of the second locking mechanism is rotated to the locking position of the second locking mechanism, the locking recess of the locking member is blocked by the housing, so that the locking portion of the shackle is locked by the locking member of the second locking mechanism, and when the locking member of the second locking mechanism is rotated to the unlocking position of the second locking mechanism, the locking recess of the locking member is separated from the housing and having an opening facing outward, so that the locking portion of the shackle is released from the locking member of the second locking mechanism.

8. The dual lock in accordance with claim 5, wherein the lock core and the locking member of the second locking mechanism are separated from each other.

9. The dual lock in accordance with claim 5, wherein the lock core and the locking member of the second locking mechanism are formed integrally.

10. The dual lock in accordance with claim 1, wherein the identification member is linearly movable in the housing between a first position where the identification zone of the identification member is aligned with the window of the housing and a second position where the identification zone of the identification member is separated from the window of the housing.

11. The dual lock in accordance with claim 5, wherein the identification member has an end formed with a protruding resting face, and the locking member of the second locking mechanism has a mediate portion formed with a push block rested on the resting face of the identification member, so that when the locking member of the second locking mechanism is rotated, the push block pushes the resting face of the identification member to move the identification member to align the identification zone of the identification member with the window of the housing.

12. The dual lock in accordance with claim 1, wherein the identification member has an end formed with a protruding resting face, and the second locking mechanism has a push block rested on the resting face of the identification member, so that when the second locking mechanism is rotated, the push block pushes the resting face of the identification member to move the identification member to align the identification zone of the identification member with the window of the housing.

13. The dual lock in accordance with claim 1, wherein the housing 1 has an inside formed with a first positioning groove and a second positioning groove, and the identification member has a side formed with an elastic positioning boss that is positioned in the first positioning groove of the housing when the identification zone of the identification member is aligned with the window of the housing and is positioned in the second positioning groove of the housing when the identification zone of the identification member is separated from the window of the housing.

14. The dual lock in accordance with claim 1, further comprising an urging member secured on the pivot shaft of the shackle to move with the pivot shaft of the shackle axially in the housing and urged on the identification member to move the identification member in the housing to its second position so that the identification zone of the identification member is separated from the window of the housing.

15. The dual lock in accordance with claim 14, wherein the identification member has an inside formed with a tapered guide face, and the urging member is axially movable in the inside of the identification member and has a side formed with a tapered push face urged on the tapered guide face of the identification member.

16. The dual lock in accordance with claim 15, wherein the inside of the identification member is formed with an elongated slot having a side formed with the tapered guide face, and the urging member is movable in the elongated slot of the identification member.

17. The dual lock in accordance with claim 1, wherein the pivot shaft of the shackle is extended through the urging member and the first locking mechanism.

18. The dual lock in accordance with claim 1, wherein the housing has two opposite windows, and the identification member has two opposite identification zones.