Information
-
Patent Grant
-
6317986
-
Patent Number
6,317,986
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Date Filed
Thursday, May 18, 200024 years ago
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Date Issued
Tuesday, November 20, 200122 years ago
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CPC
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US Classifications
Field of Search
US
- 030 162
- 030 335
- 030 151
- 030 329
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International Classifications
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Abstract
A quick disassembly device for a heavy duty artistic cutter includes a handle combined with a pair of first and second half casings. The first half casing has a reduced end insertible into a vertical slot at a corresponding end of the second half casing. A circular depression is formed in the other end of each of the half casings including different slot in their bottoms for respectively engaging with rectangular latch and a positioning post from a fastener which fastens the two half casings together, a rectangular depression including a blade entrance in the top of the handle for slidably disposing a slidable blade rack therein.
Description
BACKGROUND OF THE INVENTION
The present invention relates to artistic cutters and more particularly to a heavy duty artistic cutter which has a quick disassembly device on its handle for the rapid chance of the blade from the handle therewithin.
Typical heavy duty artistic cutter has a handle combined by a pair of half casings and connected with screws. Because of that the blade adapted to this cutter is of double headed. Each time, when changing the blade, one must unfastens the screws and disassembles the handle apart. This process always consumes a lot of time for the user. Some of the automatic disassembling handle for the cutter is therefore available. But they sacrifice the stable combination of the handle so as to affect the use of the cutter.
SUMMARY OF THE PRESENT INVENTION
The present invention has a main object to prove a quick disassemble device for a heavy duty artistic cutter which has a handle is readily disassembled but not stability of the use of the cutter.
Accordingly, the heavy duty artistic cutter has a handle which is combined by a pair of half casings without using a screw but a quick disassemble device which includes a sleeve formed on one end and a button on the other end of the handle. The button has a locking member made incorporation with the corresponding recess in the handle. So that when rotates the button clockwise the handle is combined and when rotates the button counterclockwise, the handle is disassembles. This process is worked readily and promptly.
The present invention will become more fully understood by reference to the following detailed description thereof when read in conjunction with the attached drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is an exploded perspective view to show the preferred embodiment of the heavy duty artistic cutter according to the present invention,
FIG. 2
is a perspective view to show an assembly of
FIG. 1
,
FIG. 3
is a side view of a first half casing of the handle of the cutter,
FIG. 4
is a side view of a second half casing of the handle of the cutter,
FIG. 5
is a top view of the quick disassembly device while the locking member is at an unlocking position,
FIG. 6
is a side view of
FIG. 5
,
FIG. 7
is a top view of the quick disassembly device while the locking member is at a locking position, and
FIG. 8
is a side view of FIG.
7
.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to
FIGS. 1
,
2
,
3
and
4
of the drawings, the heavy duty artistic cutter of the present invention comprises generally a handle combined with a first half casing
10
and a second half casing
20
, and a slidble blade rack
30
.
The first half casing has a reduced front end
11
, a first shoulder
12
abutting the front end
11
, a first rectangular depression
13
in a top, a blade entrance
14
under the depression
13
, a first circular depression
15
in an outer surface abutting the rear end including a notch
151
in a circumference, a rectangular slot
152
in the bottom of the depression
15
adjacent an outer circumference of the depression
15
having an arcuate portion in the center, a circular slot
153
in the center of the bottom communicating to the rectangular slot
152
and an arcuate slot
154
adjacent an inner circumference of the depression
15
having a straight portion communicating to the circular slot
153
.
The second half casing
20
has a second shoulder
21
engageable with the first shoulder
12
, a second rectangular depression
22
engageable with the first rectangular depression
13
, a vertical slot
23
in the front end for receiving the front head of the blade
32
, a second circular depression
25
in an outer surface abutting the rear end made in registry with the bottom of the first circular depression
15
and rectanoular slot
24
including an arcuate central portion in the center of the second circular depression
25
and made in registry with the circular slot
153
of the first circular depression
15
, and a thumbprint
26
on a top adjacent the front end.
A fastener
16
has a circular button
160
, a cylindrical rod
161
centrally projected outward from an inner surface of the button
160
including an annular ring
162
on the root made engageable with the circular slot
153
and a pair of rectangular plates
163
symmetrically projected outward from the opposing peripheries of the rod
161
abutting the free end thereof made engageable with the rectangular slots
152
and
24
of the first and secondhalf casings, and a small post
164
projected outward from an inner surface between the circumference of the button
160
and the cylindrical rod
161
made slidably engageable into the arcuate slot
154
of the first circular depression
15
.
The slidable blade rack
30
is of a conventional type and includes a slide
31
and a double headed blade
32
.
In combination, first insert the rectangular plates
163
of the fastener
16
into the rectangular slot
152
therethrough and centrally move the cylindrical rod
161
to have the annular ring
162
engaged into the circular slot
153
, then the small post
164
is therefore moved to a position engageable into the arcuate slot
154
and the button
160
is placed into the first circular depression
15
. Secondly, sleeve the vertical slot
23
of the second half casing
20
onto the reduced front end of the first half casing
10
so that the second shoulder
21
is stopped against the first shoulder
12
, then engage the second rectangular slot
24
of the second half casing
20
with rectangular plates
163
of the fastener
16
and to have the rectangular plates
163
passing through the second rectangular slot
24
, and then rotate the button
160
counterclockwise, the second half casing
20
is stably combined with the first half casing
10
. The small post
164
which is provided to limit the span of the rotation of the button
160
now is moved to the upper end of the arcuate slot
154
(as shown in FIGS.
7
and
8
). The blade rack
30
is placed into the second half casing
20
prior to the combination of the casings
10
and
20
. Its slide
31
is remained to outside of the casings
10
and
20
in order to be slidable in the rectangular depression
13
and
22
. Further, the small post
164
has also a function to prevent the annular ring
162
from disengaging with the circular slot
153
so as to promise a stable combination of the half casings
10
and
20
.
Referring to
FIGS. 5 and 6
, when rotates the button
160
clockwise, the small post
164
is moved to the lower end of the arcuate slot
154
and the rectangular plates are therefore in alignment with the second rectangular slot
24
. So that the two half casing
10
and
20
are disassembled to facilitate the changing of a new blade.
The specification relating to the above embodiment should be construed as exemplary rather than as limitative of the present invention, with many variations and modifications being readily attainable by a person of average skill in the art without departing from the sprit or scope thereof as defined by the appended claims and their legal equivalents.
Claims
- 1. A heavy duty artistic cutter comprising:a handle combined with a first half casing and a second half casing; said first half casing having a first end, a second end, a reduced portion at the first end to define a first shoulder thereabutting, a first rectangular depression in a top, a blade entrance under the first rectangular depression, a first circular depression in an outer surface abutting the second end including a notch in an outer periphery, a bottom inside the first half casing, a circular slot in center of the bottom, a rectangular slot having an arcuate central portion adjacent to an outer circumference of the bottom communicating to the circular slot and an arcuate slot adjacent to an inner circumference of the bottom communicating to the circular slot via a straight portion; said second half casing having a first end, a second end, a vertical slot in the first end, a second shoulder adjacent the first end of said second half casing made engageable with the first shoulder of the first half casing, a second rectangular depression in a top made engageable with the first rectangular depression of the first half casing, a second circular depression in an outer surface adjacent the second end thereof and a second rectangular slot including an arucate central portion centrally formed in a bottom of the second circular depression made in registry with the circular slot of the first circular depression; a fastener having a circular button rotatably disposed into the first circular depression of the first half casing, a cylindrical rod including an annular ring on a root centrally projected outward from an inner surface of the button made engageable with the circular slot of the first circular depression, a pair of rectangular plates symmetrically projected outward from opposing peripheries of the cylindrical rod abutting free end thereof made insertible through a first rectangular slot of the first circular depression and the second rectangular slot of the second circular depression, and a small post projected outward from an inner surface of the button between the annular ring and an inner circumference of the button made slidable within the arcuate slot of the first circular depression; a slidable blade rack disposed into the handle having blade engageable into the vertical slot of the second half casing and a slide slidable with the second rectangular depression of the handle; whereby, the half casings are combined when rotates the button counterclockwise and the half casings are disassembled when rotates the button clockwise.
US Referenced Citations (4)