Motorcycle disc brake lock

• US 6,553,793 B1
• Filed: 05/16/2002
• Issued: 04/29/2003
• Est. Priority Date: 05/16/2002
• Status: Expired due to Fees

• Current Assignee: Wander Holding Group, Inc.
• Original Assignee: Tian-Yuan Chen
• Inventors: Chen, Tian-Yuan
• Primary Examiner(s): BARRETT, SUZANNE LALE DINO
• Application Number:
  US10/145,785
• Time in Patent Office: 348 Days
• Field of Search: 70/33, 702/33, 703/86, 70/34, 703/79.R
• US Class Current: 70/33
• CPC Class Codes: B62H 5/18 acting on a braking device locking cycle brake actuating mechanisms B62L3/06
• CPC Class Codes: E05B 67/36 Padlocks with closing means other than shackles ; Removable locks, the lock body itself being the locking element; Padlocks consisting of two separable halves or cooperating with a stud
• CPC Class Codes: Y10T 70/441 Housing extension and cooperating detent
• CPC Class Codes: Y10T 70/443 Single stem or shank
• CPC Class Codes: Y10T 70/5872 For cycles

Abstract

A motorcycle disc brake lock includes a lock body, a rotary base, a deadbolt, a locking card, a coil spring, a lock column and a twist spring. In using, a key is applied to turn around the rotary member of the lock column to actuate the rotary base rotate. The engage members of the locking card are guided and actuated to move up and get into the engage recesses of the rotary base by the sloped surfaces of the two prop projections in the chamber of the lock body. Thus, the deadbolt is moved upward, forming an unlocked condition. For locking, only insert the disc brake of a motorcycle into the deep opening of the lock body to slightly push up the deadbolt and force the locking card to move into the slide slots of the rotary base. Thus, the deadbolt is pushed down to have its bottom end inserted in a lock hole to lock the disc brake.

Claims

1. A motorcycle disc brake lock comprising:

a lock body provided with a lock base in a right upper portion, said lock base formed with a chamber in the interior, said chamber having two prop projections located oppositely on an inner wall, each said prop projection respectively having a sloped surface and a horizontal surface, two notches respectively formed between said two prop projections, a through hole bored in a bottom of said chamber of said lock base and communicating with a deep opening in a lower portion of said lock boy, a lock hole provided in a bottom of said deep opening and aligned to said through hole;

a rotary base received in said chamber of said lock base formed with a center hollow in the interior, said center hollow having a through hole in a bottom, said rotary base having two slide slots bored oppositely in an annular wall, a projection with an insert hole formed at one side of one of said two slide slots, said rotary base further having two engage recesses and two position grooves respectively formed oppositely in an upper portion;

a deadbolt inserted in said center hollow of said rotary base and provided with a stop member protruding out around an upper end and a recess on top;

a locking card firmly fixed on the upper end of said deadbolt and provided with a through hole in a center of said locking-card and having two engage members located oppositely to protrude outward;

a coil spring having a bottom end fitted in said recessed groove of said deadbolt;

a lock column fixed in said chamber of said lock base and having a rotary member in a center thereof, said rotary member having two lugs fixed oppositely in a bottom thereof, said lock column having two stop edges formed to define an opening in an annular wall of said lock column;

a twist spring fitted around said lock column; and

,

a key inserted into said lock column to turn around said rotary member, said rotary member actuating said rotary base to rotate and forcing said twist spring twisted elastically, said two engage members of said locking card guided and actuated to move upward by said sloped surfaces of said prop projections in said chamber, said engage members moving up and getting into said engage recesses of said rotary base, said deadbolt forced to move up and compress said coil spring to shrink to form an unlocked condition, a disc brake of a motorcycle inserted into said deep opening of said lock body, said disc brake slightly moving said deadbolt upward, said locking card actuated to move up and get away from said engage recesses of said rotary base, said engage members of said locking card getting into said slide slots of said rotary base again by recovering resilience of said twist spring, said twist spring recovering said resilience to push down said deadbolt together with said locking card and forcing the bottom end of said deadbolt inserted into said lock hole under said deep opening of said lock body to finish locking said disc brake lock.