Padlock

• US 20050034492A1
• Filed: 08/12/2004
• Published: 02/17/2005
• Est. Priority Date: 08/15/2003
• Status: Abandoned Application

• Current Assignee: Chun Te Yu
• Original Assignee: Chun Te Yu
• Inventors: Yu, Chun Te
• Application Number:
  US10/916,510
• Publication Number:
  US 20050034492A1
• Time in Patent Office: Days
• US Class Current: 70/25
• CPC Class Codes: E05B 35/105 Locks allowing opening by official authorities, e.g. master key opening of luggage locks by customs officials
• CPC Class Codes: E05B 37/0034 actuated by either
• CPC Class Codes: E05B 37/025 in padlocks
• CPC Class Codes: E05B 67/10 with devices for securing the free end of the shackle
• CPC Class Codes: Y10T 70/424 Sliding

Abstract

A padlock that can be operated without using both hands is provided. The padlock mainly contains: a lock body, a shackle, a restriction device and a locking means. The shackle has a base end and a free end. The base end is pivotally installed in a side of the lock body whereby the shackle can be freely rotated about the base end without axial movement. The restriction device has a restriction button and a driving element extended from a bottom of the restriction button. The restriction button is disposed on the lock body and is formed with a notch corresponding to the free end of the shackle for restricting the same. The driving element is movably installed in the lock body. The locking means is formed in the lock body for controlling movements of the driving element in order the notch of the restriction button to be engaged with or disengaged from the free end of the shackle, wherein the notch is formed at a top of the restriction button and is extended from a edge to a center of the restriction button.

Claims

1. A padlock comprising:

a lock body;

a shackle having a base end and a free end, said base end being pivotally installed in a side of said lock body, whereby said shackle can be freely rotated about said base end without axial movement;

a restriction device having a restriction button and a driving element extended from a bottom of said restriction button, said restriction button being disposed on said lock body and being formed with a notch corresponding to said free end of said shackle for restricting the same, said driving element being movably installed in said lock body; and

a locking means formed in said lock body for controlling movements of said driving element in order said notch of said restriction button to be engaged with or disengaged from said free end of said shackle;

wherein said notch is formed at a top of said restriction button and has a receptacle at a center thereof and a gap at an edge thereof, said receptacle being communicated with said gap.

2. The padlock of claim 1 wherein said locking means is a combination locking means comprising plural number wheels, and said driving element is movable when said plural number wheels are dialed to unlocking numbers.

3. The padlock of claim 1 wherein said locking means is a key operated locking means, and said driving element is movable when said key operated locking means is unlocked.

4. The padlock of claim 1 further comprising a resilient member for restoring said restriction button and said driving element.

5. The padlock of claim 3 wherein said key operated locking means comprises a body having a rotor received therein and a driving rod extended from said rotor, said rotor having a keyhole at a bottom end thereof for being engaged with a key, said driving rod is for controlling movements of said driving element.

6. The padlock of claim 4, wherein said locking means is a key operated locking means, and said driving element is movable when said key operated locking means is unlocked.

7. The padlock of claim 5, wherein said driving element having one plate, said driving rod having one slot at an end thereof for being engaged with said plate.

8. The padlock of claim 6, wherein said key operated locking means comprises a body having a rotor received therein and a driving rod extended from said rotor, said rotor having a keyhole at a bottom end thereof for being engaged with a key, said driving rod is for controlling movements of said driving element.

9. A padlock comprising:

a lock body;

a shackle having a base end and a free end, said base end being pivotally installed in a side of said lock body;

a restriction device having a restriction button and a driving element extended from a bottom of said restriction button, said restriction button being disposed on said lock body and being formed with a notch corresponding to said free end of said shackle for restricting the same, said driving element being movably installed in said lock body;

a first locking means formed in said lock body for controlling axial movements of said base end; and

a second locking means formed in said lock body for controlling movements of said driving element in order said notch of said restriction button to be engaged with or disengaged from said free end of said shackle;

wherein said notch is formed at a top of said restriction button and has a receptacle at a center thereof and a gap at an edge thereof, said receptacle being communicated with said gap.

10. The padlock of claim 9 wherein said first locking means is a combination locking means and said second locking means is a key operated locking means.

11. The padlock of claim 9 wherein said first locking means is a key operated locking means and said second locking means is a combination locking means.

12. The padlock of claim 9 wherein said first locking means comprises:

a locking mechanism; and

a combination locking means comprising a stem and plural number wheels for controlling movements of said stem;

wherein said stem triggers said locking mechanism for controlling movements of said base end of said shackle; and

wherein said second locking means comprises;

a body having a rotor received therein and a driving rod extended from said rotor, said rotor having a keyhole at a bottom end thereof for being engaged with a key, said driving rod is for controlling movements of said driving element.

13. The padlock of claim 9 further comprising a resilient member for restoring said restriction button and said driving element.

14. The padlock of claim 12, wherein said driving element having one plate, said driving rod having one slot at an end thereof for being engaged with said plate.

15. The padlock of claim 13 wherein said first locking means comprises:

.

a locking mechanism; and

a combination locking means comprising a stem and plural number wheels for controlling movements of said stem;

wherein said stem triggers said locking mechanism for controlling movements of said base end of said shackle; and

wherein said second locking means comprises;

a body having a rotor received therein and a driving rod extended from said rotor, said rotor having a keyhole at a bottom end thereof for being engaged with a key, said driving rod is for controlling movements of said driving element.