PADLOCK WITH INDICATION DEVICE

• US 20120279264A1
• Filed: 07/05/2012
• Published: 11/08/2012
• Est. Priority Date: 01/11/2005
• Status: Abandoned Application

• Current Assignee: Chun Te Yu
• Original Assignee: Chun Te Yu
• Inventors: YU, CHUN TE
• Application Number:
  US13/541,855
• Publication Number:
  US 20120279264A1
• Time in Patent Office: Days
• US Class Current: 70/21
• 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 67/06 Shackles; Arrangement of the shackle
• CPC Class Codes: Y10T 70/40 Portable
• CPC Class Codes: Y10T 70/413 Padlocks
• CPC Class Codes: Y10T 70/415 Combination and/or key-controlled

Abstract

A padlock includes a housing, a shackle, a limit knob, a movable block and a lock core. The housing has an opening in a wall thereof. The shackle has a shaft portion movably mounted in the housing, and a locking portion extended from the shaft portion and located outside of the housing. The limit knob is partly received in the housing via the opening and has a button located outside of the housing. The movable block is disposed on the limit knob and capable of moving to a predetermined position which is outside of the housing. The lock core has a rotor configured to be driven by a key so as to move the limit knob to a first position where the button of the limit knob keeps the shackle from rotating and a second position where the button of the limit knob allows the shackle to rotate.

Claims

1. A lock comprising:

a housing, defining an opening;

a block, located at the opening of the housing, the block being movable to an indication position outside of the housing;

a lock mechanism, having a lock core mounted in the housing, the lock core having a rotor, the rotor having a keyhole portion, the lock core configured to rotate the rotor which does not cause the block to move when the block is in the indication position.

2. The lock of claim 1, further comprising a shackle, the shackle having a shaft portion movably mounted in the housing and a locking portion located outside of the housing, the shackle being capable of rotating relative to the housing to allow the shaft portion to get from or get in a position which is right above the block..

3. The lock of claim 1, wherein the lock core is configured to rotate the rotor which causes the block to move to the indication position.

4. The lock of claim 1, wherein the block is linearly movable to the indication position along an axial direction.

5. The lock of claim 1, wherein the lock core is located under the block and the block is upward movable to the indication position.

6. The lock of claim 1, wherein the block has a first portion located in the opening.

7. The lock of claim 1, wherein the block has a protruding portion located in a top surface thereof and a first portion located in a bottom surface thereof.

8. The lock of claim 7, wherein the first portion is located in the opening.

9. The lock of claim 7, wherein the first portion and the protruding portion are in a staggered arrangement.

10. The lock of claim 1, further comprising a shackle, the shackle having a shaft portion movably mounted in the housing and a locking portion located outside of the housing, the block located between the lock core and the locking portion of the shackle.