Locks – Portable – Padlocks
Reexamination Certificate
2002-05-16
2003-04-29
Barrett, Suzanne Dino (Department: 3676)
Locks
Portable
Padlocks
C070S034000, C070S233000, C070S370000
Reexamination Certificate
active
06553793
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a motorcycle disc brake lock, particularly to one able to be unlocked by applying a key to turn around the rotary member of a lock spindle to move up a deadbolt, and to be locked only by inserting the brake saucer of a motorcycle into the cut groove of a lock body to slightly push up the deadbolt to let a locking card move up and disengage from the engage recesses to get into the slide groove of the rotary base by the recovering resilience of a twist spring. Then, the deadbolt together with the locking card is pushed downward by the recovering resilience of a coil spring on the deadbolt to force the bottom end of the locking bolt inserted into the lock groove under the cut groove of the lock body.
2. Description of the Prior Art
A conventional motorcycle disc brake lock, as shown in
FIGS. 1 and 2
, includes a lock body
10
, a locking member
11
, an actuating bolt
12
, a cover
120
, a lock base
13
, a fitting member
14
, two springs
102
,
15
and a position pin
16
combined together.
The lock body
10
is formed with a vertical opening
100
, having a U-shape, and a vertical receiving hole
101
provided in a right portion. The receiving hole
101
is fitted inside with the spring
102
and the actuating bolt
12
having a recessed groove
121
under for receiving the spring
102
therein. The actuating bolt
12
is formed with a notch
122
on a lower portion, and a sloped surface
123
and a vertical surface
124
on top. The cover
120
is mounted on and seals up the receiving hole
101
of the lock body
10
. The lock body
10
is further provided on the right sidewall with an axial hole
103
communicating with the receiving hole
101
and aligned to a recessed groove
104
on the left portion of the lock body
10
. Besides, the lock body
10
is bored on top with an insert hole
106
communicating with the axial hole
103
, and the axial hole
103
is fitted inside with the spring
15
and the locking member
11
having a slide groove
110
and an insert slot
111
. The locking member
11
has a slide groove
110
to match with the insert hole
106
of the lock body
10
, with a position pin
16
inserted through the insert hole
106
and extend in the slide groove
110
to restrict the locking member
11
to move back and forth within the length of the slide groove
110
. Then, the actuating bolt
12
has its top end engaged in an insert slot
111
of the locking member
11
, which has its rear end housed with a cap
14
.
In addition, the lock body
10
has a lock base hole
105
bored laterally beneath the axial hole
103
and communicating with the receiving groove
101
for receiving the lock base
13
. The lock base
13
is formed with a projection
130
at the front end to match with the notch
122
on the wall of the actuating bolt
12
. Thus, a key is used to turn around the lock base to control the actuating bolt
12
to move up and down and make for unlock and lock the locking member
11
.
However, the components of a conventional disc brake lock
1
not only have to be orderly installed in multi-direction, but also need to match with one another in assembly, resulting in much trouble and inconvenience in assembling, and increasing producing cost.
SUMMARY OF THE INVENTION
The objective of the invention is to offer a motorcycle disc brake lock able to be locked stably on the disc brake of a motorcycle, easy in assembling and economical in producing.
The feature of the invention is that a lock body is formed with a lock base in an upper portion, the lock base having a chamber provided on the inner wall with two prop projections respectively having a sloped surface and a horizontal surface, two notches respectively formed between the two prop projections, a through hole bored at the bottom of the chamber of the lock base and communicating with a deep opening in a lower portion of the lock body. Further a lock hole formed in the bottom of the deep opening and aligned to the through hole. A rotary base to be received in the chamber of the lock base is provided with a center hollow having a through hole, two slide slots provided oppositely on its annular wall, a projection with an insert hole formed at one side of one of the two slide slots, and two engage recesses and two position grooves respectively and oppositely formed on top. A deadbolt to be fitted in the center hollow of the rotary base is provided with a protruding-out stop member at an upper end and a recess in the center. A locking card to be fixed on the top end of the deadbolt has a through hole in the center and two protruding-out engage members located oppositely. A coil spring has its bottom end fitted in the recess of the deadbolt. A lock column to be received in the chamber of the lock base is provided in the central interior with a rotary member having two lugs positioned oppositely at the bottom and two stop edges fixed oppositely in the annular wall. A twist spring is fitted around the lock column.
REFERENCES:
patent: 4403485 (1983-09-01), Scherbing
patent: 5127244 (1992-07-01), Myers
patent: 5265453 (1993-11-01), Konii et al.
patent: 5577409 (1996-11-01), Oyabu et al.
patent: 5713224 (1998-02-01), Liou
patent: 5819889 (1998-10-01), Shieh
patent: 5916279 (1999-06-01), Shieh
patent: 6237376 (2001-05-01), Surratt
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