Note: Descriptions are shown in the official language in which they were submitted.
CA 02305087 2000-04-13
TITLE: STRUCTURE OF PENCIL ASSEMBLY ELONGATED BY COMBINATION
BACKGROUND OF THE INVENTION
1. Field of the invention
The present invention is related to a structure of pencil assembly
whi.ch..can be elongated by combination. And especially is related to a
structure of pencil assembly provided with a main shank of the pencil
having a fixing annular member thereon, and with a connecting shank for
elongating the pencil and having a fixing collar thereon, thereby a user
can hold it conveniently, and an object of environmental protection can
be 'obtained.
2. Description of the Prior Art
When people use pencils pared with a knife, the pencil will get
shorter and shorter in repeated using and paring. And when the remaining
pencil is about 1/3 the length, it is discarded for being hard to hold.
In the present days, resource is very limited, wood exploitation is
subjected to destroying of woods and human living environment, waste
of such resourcE; thereby is necessarily prohibited and improved.
The pencil auxiliary rods sold in the markets (referring to Fig.
1 and 2) nowadays are comprised of a holding rod 10 and a sleeve 20.
The holding rod 10 is provided with a flange 11 on the lower portion
thereof, the latter is provided wi th a thread and a plural i ty of clamping
pieces 12. The sleeve 20 is provided with a through hole 21 extending
therethrough, the through hole 21 allows extending therein the holding
rod 10 to fixedly connect therewith by screwing in. When the length of
a penci I 30 is inadequate for holding by a user, i t can be inserted among
the clamping pieces 12 of the holding rod 10, and then the sleeve 20
CA 02305087 2000-04-13
is screwed tight to render the clamping pieces 12 to hold the pencil
30. Thereby, the pencil 30 is fixedly connected with the holding rod
to solve the problem of inabi 1 i ty of holding to al low cont inuous us ing
of the main shank of the pencil.
5 . ~'be conven t i ona t aux i I i a ry rods can make con t i nuous us i ng
of penc i 1 s ,
however, they have the following defects:
1. Cost of production of the auxiliary rods is high; the clamping
pieces on the holding rods are subjected to breakage and
deformation to render them unable for use.
10 2. The pencils are inserted in the holding rods and locked by
screwing in the sleeve, i t is often that a user wri tes wi th overly
large force to make contracting of a pencil into a holding rod
to result the case of inability or uneasiness of taking out the
pencil.
3. When a pencil is connected with a holding rod, the tailing end
thereof shall give quite a length for holding, otherwise, the
case of unstable holding and shaking may result. Therefore,
although the pencil can be used till a shorter length, but it
is still unable to use all the length thereof.
SUMMARY OF Tl-!E II~VFNTIO~I
Based on the above defects resided in the conventional auxiliary
rods for elongating pencils, the inventor of the present invention
considered to elongate a pencil by a simplest and surest way to save
the cost of producing the auxiliary rods and to increase convenience
of assembling and use of the pencil. Therefore, the inventor of the
present invention provides the structure of pencil assembly of the
2
CA 02305087 2000-04-13
present invention based on his professional experience of years .in
studying, designing and manufacturing the similar products, and putting
in very much spirit and energy, as well as after multiple examinations
and tests. Thereby, waste of resource and the defects resided in the
conventional auxiliary rods can be gotten rid of.
The primary object of the present invention is to provide a structure
of pencil assembly which is simple and convenient in assembling. Wherein,
a main shank of the pencil is provided with a fixing annular member,
and a connecting shank of the penci I is provided thereon a fixing cot tar.
By t;onnecting of the fixing annular member and the connecting shank of
the penci l, the penci I assembly can be elongated. This not only can get
rid of the defect of the conventional auxiliary rods, but can also obtain
the objects of environmental protection and reducing of production cost.
The present invention will be apparent after reading the detailed
description of the preferred embodiment thereof in reference to the
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. I is an analytic schematic perspective view showing .a
conventional auxiliary rod used for a pencil;
Fig. 2 is a perspective view showing the conventional auxiliary rod
used for a pencil after assembling;
Fig. 3 is an analytic schematic perspective view of the presen t
invention;
Fig. 4 is a sectional view showing the present invention after
assembling;
Fig. 5 is a sectional view showing another embodiment of the present
3
CA 02305087 2000-04-13
invention after assembling;
Fig. 6 is a schematic perspective view showing another embodiment
of the present invention;
Fig. 7 shows another embodiment of the present invention as compared
with Fig. 6;
Fig. 8 shows a further embodiment of the present invention as
compared with Fig. 6.
DETAILED DESCRIPTION OF TIC PREFERRED Eh~DIMENT
Referring to Fig. 3 to 5, the present invention is comprised mainly
of~a main shank 40 and a connecting shank 50 of the pencil. The main
shank 40 is provided with a fixing annular member 41 which is further
provided wi th a locking s tub 42 wi th an external thread thereon. A fixing
collar Sh' is provided on the connecting shank 50 in cooperation with
the fixing annular member 41. The fixing collar 51 is provided at the
center thereof with a locking hole 52 for screw locking the locking stub
42. The locking hole 52 is provided therein with an inner thread. The
locking stub 42 and the locking hole 52 can be provided in an alternative
way, i.e., the locking stub 42 is provided on the fixing collar 51, while
the locking hole 52 is provided on the fixing annular member 41.
When the main shank 40 is used and pared repeatedly, and the length
thereof is reduced to a degree which is inconvenient for holding, the
locking stub 42 provided on the tailing end of the main shank 40 can
be screw fixed in the locking hole 52 of the connecting shank 50, so
that by adding I:he length on the connecting shank 50, the pencil can
be held conveniently, and the main shank 40 can be used continuously
to make it be totally used.
4
CA 02305087 2000-04-13
The connect ing shank 50 can be used in cooperat ion wi th a main shank
40; and it can be pared for use when the main shank 40 is completely
used. Fixing of a main shank 40 with the connecting shank 50 of the
present invention is fast and convenient, and can largely reduce waste
s of resource. The fixing annular member 41 and the fixing collar 51 can
be integrally formed with the main shank 40 and the connecting shank
50 respectively, i.e., the main shank 40 is provided on one end thereof
directly with the protruding locking stub 42, and the connecting shank
50 is provided on one end of di rect ly wi th the locking hole 52 connectable
l0 with the locking stub 42 (as shown in Fig. 5).
The pencil assemblies of the present invention as shown in Fig. 6
and 7 uses a plurality of main shanks 40 together with an auxiliary rod
60. The ~ux~iliary rod 60 is made of plastic or wood and is provided
thereon wi th a locking stub 61. When a main shank 40 is used to a degree
15 which is inconvenient for holding, the locking stub 61 can be screw
connected wi th a locking hole 43 provided on the main shank 40 to al low
cons inuous use in wri ting. Fig. 8 shows that a plural i ty of main shanks
40 of the present invention can be provided directly on one end of each
of them wi th a locking stub 42, while the other end thereof is provided
20 directly with a locking hole 44, so that an almost used-up main shank
40 can be connected with another main shank 40 for use, thereby, the
main shanks 40 c:an be continuously used. The pencil assembly of the
present invention thereby is structurally simple and can make
environmental protection be realized.
25 In conclusion, a main shank of the present invention can be provided
wi th a locking stub, whi le a locking hole can be provided on a connecting
s
CA 02305087 2000-04-13
shank; or the main shank can be provided wi th a locking hole, whi le the
connecting shank can be provided with a locking stub. By mutual
connecting of the locking stub and the locking hole, a pencil can be
elongated in favor of holding, and the objects of saving resource and
rea~.i~ing environmental protection can be achieved. The aforesaid is
only for illustrating a preferred embodiment of the present invention.
It will be apparent to those skilled in this art that various
modifications or changes can be made to the elements of'the present
invention without departing from the spirit, scope and characteristic
l0 of 'this invention. Accordingly, all suchmodifications and changes also
fall within the scope of the appended claims and are intended to form
. part of this invention.
Having thus described the technical structure of my invention with
novelty, industrial utility and improvement, therefore, what 1 claim
as new and desire to be secured by Letters Patent of the United States
are:
25
G
