Lighting device for a socket wrench

Details Lighting device for a socket wrench Lighting device for a socket wrench

2000-09-12

2002-12-24

Cariaso, Alan (Department: 2875)

Illumination

With implement or hand held holder therefor

Hand tool

C362S185000, C362S197000, C362S199000

Reexamination Certificate

active

06497494

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a socket wrench, and more particularly to a lighting device of the socket wrench.
2. Description of Related Art
As shown in
FIGS. 1 and 2
, a prior art socket wrench
10
is provided with a grip body
12
which is in turn provided at one end thereof with a fitting hole
13
, and at another end thereof with a plugging hole
14
having outer threads
15
and a press shoulder
16
. The grip body
12
is fitted over the handle of the socket wrench
10
through the fitting hole
13
. An insulation plug body
17
having two conductive pieces
18
, a battery set
19
, and a switching element
20
having a protruded shoulder
21
, a press button
22
and a connection point spring
23
, are received in the plugging hole
14
in conjunction with a cap
24
having a hole
25
and inner threads which are engaged with the outer threads
15
of the plugging hole
14
. The grip body
12
is provided in the underside of one end thereof with a receiving slot
30
having the pivoting portions
31
and being in communication with the plugging hole
14
. The pivoting portions
31
are provided with a guide slot
32
and a dial member
33
having a shaft rod
34
, a light bulb port
35
in which two pins
27
of a light-emitting element
36
are disposed such that the two pins
27
are connected with the dial member
33
by two conductive. pieces
38
. Two conductive bodies
39
of the conductive pieces
18
are extended into the receiving slot
30
such that the conductive bodies
39
are in contact with the conductive pieces
38
.
The prior art lighting device has drawbacks. In the first place, the pins
37
of the light-emitting element
36
, the two conductive pieces
38
, and the conductive bodies
39
are vulnerable to moving aside to result in poor contact at the time when the base
40
is impacted on by an external force. Secondly, the light-emitting element
36
is extended out of the dial member
33
and is devoid of a protective shield.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a socket wrench with a lighting device which is free of the drawbacks of the prior art lighting device described above.
The features and the advantages of the present invention will be readily understood upon a thoughtful deliberation of the following detailed description of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 4364104 (1982-12-01), Holahan et al.
patent: 5971560 (1999-10-01), Chen
patent: 6224229 (2001-05-01), Lin
patent: 6386727 (2002-05-01), Yeh

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