Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
2002-12-23
2004-06-29
Meislin, D. S. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C403S324000
Reexamination Certificate
active
06755100
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a tool, and more particularly to a tool extension or the like having a quick release and positive locking device.
2. Description of the Prior Art
Typical quick release and positive locking device having been developed and provided for socket wrenches or extension bars for socket wrenches. One example of the typical quick release and positive locking device is disclosed in U.S. Pat. No. 4,848,196 to Roberts.
For example, as shown in
FIGS. 1 and 2
, Roberts discloses a tool device
10
comprising a movable member
12
slidably received in a diagonally disposed bore
11
or opening thereof, and a spring
13
engaged with the movable member
12
to force one end of the movable member
12
into a cavity
21
of a socket
20
or the like, and thus for locking the socket
20
to the tool device
10
, and for preventing the socket
20
from being disengaged from the tool device
10
.
However, as shown in
FIG. 2
, the spring
13
is required to be moved relative to the tool device
10
with fingers, and thus may not be easily moved relative to the tool device
10
.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional tools.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a tool device including a quick release and positive locking device that may be easily operated or actuated by the user.
In accordance with one aspect of the invention, there is provided a tool device for attaching to a tool member, the tool device comprising a tool body including a first end having a diagonally disposed groove formed therein, and a channel laterally formed therein and communicating with the groove of the tool body, a latch pin slidably received in the groove of the tool body, and including a first end extendible outwardly of the groove of the tool body, for engaging into the tool member, a first biasing means for biasing the first end of the latch pin out of the groove of the tool body, and a button slidably received in the channel of the tool body, and engageable with the latch pin, to force the latch pin inwardly of the groove of the tool body against the first biasing means when the button is depressed into the channel of the tool body. The latch pin may thus be easily disengaged from the tool member by depressing the button into the tool body against the spring biasing means against the latch pin.
The latch pin includes a peripheral bulge extended radially and outwardly therefrom that defines a shoulder between the rod and the peripheral bulge, the button includes at least one first leg extended therefrom and engageable with the shoulder of the latch pin for moving the latch pin against the first biasing means.
The first leg of the button includes an inclined surface formed thereon and slidably engaged with the shoulder of the latch pin, for allowing the latch pin to be smoothly and effectively moved or forced into the groove of the tool body.
The button includes a second leg extended therefrom and defining a notch between the second leg and the first leg for slidably receiving the latch pin, and for stably and slidably coupling the latch pin to the button.
The button includes a knob having a reduced diameter than that of the button to form a shoulder between the button and the knob. The tool body preferably includes a portion engaged into the outer portion of the channel thereof and engageable with the shoulder of the button, for stably retaining the button within the channel of the tool body, and for preventing the button from being disengaged from the tool body.
Another spring biasing device may further be provided for biasing the knob out of the channel of the tool body.
The first end of the latch pin preferably includes a cone-shaped structure for engaging with the tool member, and for allowing the latch pin to be moved or forced into the tool body when the first end of the tool body is engaged into a bore of the tool member.
REFERENCES:
patent: 3515399 (1970-06-01), Wordsworth
patent: 4571113 (1986-02-01), Coren
patent: 4794828 (1989-01-01), Olson
patent: 4848196 (1989-07-01), Roberts
Baxley Charles E.
Meislin D. S.
Stanley Chiro International Ltd.
LandOfFree
Tool having quick release and positive locking device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tool having quick release and positive locking device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tool having quick release and positive locking device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3365147