Lighting structure of a socket wrench

Details Lighting structure of a socket wrench Lighting structure of a socket wrench

2000-09-05

2002-04-30

Cariaso, Alan (Department: 2875)

Illumination

With implement or hand held holder therefor

Hand tool

C362S186000, C362S197000, C362S448000

Reexamination Certificate

active

06379019

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 structure of the socket wrench.
2. Description of Related Art
As shown in
FIGS. 1 and 2
, a prior art socket wrench
10
comprises a handle
12
which is provided at one end with an opening
13
in which the free end of the socket wrench
10
is received. The handle
12
is provided at the other end with a threaded portion
15
, a shoulder
16
, and a plug hole
14
in which an insulated plug
17
is held. The insulated plug
17
has a conductive piece
18
. In addition to the insulated plug
17
, a battery set
19
, and a switching element
20
are held in the plug hole
14
. The switching element
20
has a protruded shoulder
21
, a press button
22
, and a connection spring
23
. A cap
24
having a receiving hole
25
is used to position the switching element
20
. The handle
12
is provided with a receiving cell
30
having a pivoting slot
31
which is in communication with the plug hole
14
. The pivoting slot
31
has a guide slot
32
extending therefrom. A rotary member
33
with a shaft rod
34
is pivoted to the pivoting slot
31
. The rotary member
33
is provided in the midsegment thereof with a light bulb port
35
for holding a light-emitting element
36
which has two pins
37
extending toward the rotary member
33
to be connected with two conductive pieces
38
. The conductive piece
18
of the insulated plug
17
is provided with two extension bodies
39
extending into the receiving cell
30
.
Such a prior art structure as described above is defective in design because the circuit connections of the pins
37
of the light-emitting element
36
and the conductive pieces
38
, as well as the conductive piece
38
and the extension bodies
39
are susceptible to disconnection caused by an external force impacting on the housing base
40
. In addition, the light-emitting element
36
is devoid of a light focusing means for enhancing the lighting effect. The light-emitting element
36
juts out of the rotary member
33
and is therefore vulnerable to damage.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a socket wrench with a lighting structure which is free of the deficiencies of the prior art lighting structure described above.
In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by a light structure comprising a rotary seat having a rotary shaft which is fastened to a rotary knob. The rotary seat is fastened to a light-emitting element and a light-focusing shield. The light-emitting element is connected with a battery set.
The foregoing objective, features, and functions of the present invention will be more 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: 5951142 (1999-09-01), Wang et al.
patent: 6089729 (2000-07-01), Chang
patent: 6186638 (2001-02-01), Chang
patent: 6224229 (2001-05-01), Lin
patent: 6238058 (2001-05-01), Lin
patent: 6260979 (2001-07-01), Lin
patent: 6283607 (2001-09-01), Lin

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