Title: Roll staple cartridge
Abstract: A staple cartridge which is composed in order to guide a leading end (20a) of a replacing roll staple (20) provided with a band (21) to a guide path (12) with pulling out a leading end of the band (21) from a front portion (11) of an operable and closable lid (2) to load the roll staple (20) and with rotating the roll staple (20) in a staple loading room (6) in a state in which the lid (2) is closed. Roll abutment portions (10) are arranged on the inner surface (2a) of the staple loading room (6), the roll staple (20) which is located between the roll abutment portions, are rotatably held by them striding an adhesive portion (A) to prevent a contact between the inner surface (2a) and an adhesive portion (A) which has an adhesive material.
Patent Number: 6,899,259 Issued on 05/31/2005 to Takeuchi, et al.
| Inventors:
|
Takeuchi; Sadayoshi (Tokyo, JP);
Fujishima; Atsuyoshi (Tokyo, JP);
Kaneko; Yoshihiro (Tokyo, JP)
|
| Assignee:
|
Max Co., Ltd. (Tokyo, JP)
|
| Appl. No.:
|
912708 |
| Filed:
|
July 25, 2001 |
Foreign Application Priority Data
| Jul 26, 2000[JP] | 2000-225231 |
| Current U.S. Class: |
227/120; 227/131 |
| Intern'l Class: |
B25C 005/02 |
| Field of Search: |
227/107-139
206/398,400,408,409
|
References Cited [Referenced By]
U.S. Patent Documents
| 4733777 | Mar., 1988 | Van Geyte et al.
| |
| 4833495 | May., 1989 | Ohmura et al.
| |
| 5353933 | Oct., 1994 | Takahashi et al.
| |
| 5685058 | Nov., 1997 | Givler.
| |
| 6039230 | Mar., 2000 | Yagi et al.
| |
| Foreign Patent Documents |
| 0 475 436 | Mar., 1992 | EP.
| |
| 0 608 756 | Aug., 1994 | EP.
| |
| 0 917 936 | May., 1999 | EP.
| |
Primary Examiner: Yu; Mickey
Assistant Examiner: Pickett; J. Gregory
Attorney, Agent or Firm: Chapman and Cutler LLP
Claims
1. A roll staple cartridge used to load a roll staple, said roll staple cartridge comprising:
a cartridge body having a loading room to load a roll staple; and
a lid provided for opening and closing an opening hole formed in said cartridge
body to load said roll staple;
said roll staple including a sheet staple being formed in a roll shape and having
a large number of straight staples in parallel, and a band adhered peelably through
an adhering tape to an outer surface of the sheet staple, said adhering tape being
structured so that its outer surface is an adhesive surface,
said cartridge body being provided with a punching out portion from which a staple
is punched out and
a pair of supporting portions supporting said roll staple,
a pair of roll abutment portions being formed on an inner surface of said loading
room to support rotatably said roll staple and
the pair of roll abutment portions in the loading room being arranged with a
larger space than a width of said adhesive surface of the band, and a smaller space
than a width of said sheet staple, to prevent the adhesive surface from contacting
with the inner surface of said loading room.
2. The roll staple cartridge used to load a roll staple according to claim 1,
wherein said roll abutment portions are made of thicker portions which are made
in one body with said loading room and arranged symmetrically in right and left
on the inner surface of said loading room with spacing.
3. The roll staple cartridge used to load a roll staple according to claim 1,
wherein an inner surface of the lid is formed in circular shape, a pair of roll
abutment portions is formed along the inner surface of the lid, to support rotatably
said roll staple, and
said roll abutment portions are made of thicker portions which are made in one
body with said lid and arranged symmetrically in right and left on the inner surface
of said lid with spacing.
4. The roll staple cartridge used to load a roll staple according to claim 1,
wherein a roll abutment surfaces of said roll abutment portions of said staple
loading room and said pair of roll abutment portions of said lid are covered with
a low frictional surface material.
5. A roll staple and roll staple cartridge comprising:
a roll staple; and
a cartridge body having a loading room to load said roll staple and a lid provided
for opening and closing an opening hole formed in said cartridge body to load said
roll staple;
said roll staple being formed by winding a sheet staple and a binding band in
a roll shape, said sheet staple being formed by adhering a large number of straight
staples in parallel, said band being adhered peelably through an adhering tape
to the sheet staple, said adhering tape being set so that its outer surface is
an adhesive surface;
said cartridge body being provided with a punching out portion from which a staple
is punched out and a pair of supporting portions which support said roll staple,
a pair of roll abutment portions being formed on an inner surface of said loading
room to support rotatably said roll staple,
the pair of roll abutment portions in the loading room being arranged with a
larger space than the width of the band wound around the outer surface of said
roll staple and said adhesive surface, and a smaller space than the width of said
sheet staple, to prevent the adhesive surface from contacting with the inner surface
of said loading room.
6. The roll staple and roll staple cartridge according to claim 5, wherein said
roll abutment portions are made of thicker portions which are made in one body
with said loading room and arranged symmetrically in right and left on the inner
surface of said loading room with spacing.
7. The roll staple and roll staple cartridge according to claim 5, wherein an
inner surface of the lid is formed in circular shape, a pair of roll abutment portions
is formed along the inner surface of the lid, to support rotatably said roll staple,
and said roll abutment portions are made of thicker portions which are made in
one body with said lid and arranged symmetrically in right and left on the inner
surface of said lid with spacing.
8. The roll staple and roll staple cartridge according to claim 5, wherein roll
abutment surfaces of said roll abutment portions of said staple loading room and
said pair of roll abutment portions of said lid are covered with low frictional
surface material.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a roll staple cartridge on which a roll staple
is loaded.
2. Description of the Prior Art
It is well known that a motor operated stapler utilizing a roll staple in which
large number of straight staples are joined in side by side and wound in a roll
shape. This roll staple is loaded in a staple cartridge. It is generally performed
that whole staple cartridge is exchanged when all the staples in a roll have all
been consumed, however, in view of a labor and costs for disposal of the waste,
a resource saving and prevention of destruction of the environment, a staple cartridge
that can be used repeatedly because it is made to be capable of reloading a roll
staple into a loading room, has been already proposed.
In the roll staple for this purpose, for example as shown in FIG. 6 to FIG. 8,
a trailing end of a belt like binding band
21 is adhered to a leading end
portion
20a of the roll staple
20 through adhesive tape
23,
and a pulling tab portion
22 is mounted on the leading end of the binding
band. Herein, the adhering tape
23 is set in order its outer surface
23A
to be adhesive, and the leading end portion
20a of roll staple
20
is detachably adhered on to the adhesive surface
23A of adhesive tape
23.
A width of the adhesive tape
23 and a width w of the binding band
21
are made narrower than the width w
20 of the roll staple.
Thus, as shown in FIG. 6 to FIG. 8, this binding band
21 is wound one
round around an outer surface of the roll staple
20, a leading end
21b
of the binding band
21 is detachably adhered onto the adhesive surface
23A of adhesive tape
23. By this adhesion and winding around, the
binding band
21 keeps the roll staple
20 bound in a roll shape.
The roll staple
20 which is composed as described above, is loaded onto
a cartridge
1 as hereinafter described. Firstly, a lid
2 which is
provided on a front surface of the cartridge
1 is opened as shown in FIG.
9, and the roll staple
20 is set in a loading room
6. Herein the
roll staple
20 is set in a state in which the tab portion
22 is put
in order to be able to pull out from spacing
15 between the lid
2
and a guide wall
14.
Then the lid
2 is shut and the tab portion
22 is pulled out, as
a result, the binding band
21 has been partly pulled out. With this pulling
out action, the roll staple
20 is gradually rotated in the loading room
6 in a direction which is designated by an arrow as shown in FIG.
10.
When the roll staple
20 is rotated in nearly one round, the leading end
portion
20a of roll staple
20 is come to position of a guide
hole
12a as shown in FIG.
9. When the binding band
21
is pulled out further, the leading end portion
20a of roll staple
is led from the guide hole
12a into a guide path
12 along
a guide table
7 as shown in FIG.
11.
When staples are still remaining at the guide path
12, the leading end
portion
20a is directed to a trailing end portion of the remaining
staples, and by strong pulling action of the tab portion
22, the adhesive
tape
23 is peeled off from the leading end portion
20a of
roll staple, then the binding band
21 is removed with the adhesive tape
from the roll staple. As a result, loading of the roll staple
20 has been completed.
The staples which are guided into the guide path
12, are carried one by
one toward a punching portion
13 at a front end of the guide path
12
by a sending means
30 being provided with sending claw and so on which are
not shown in drawings in detail. The carried staples are formed in U shape one
by one and the U shaped staple is punched out by a driver which is not shown in
the drawings, at the punching portion
13.
However, because the adhesive surface
23A of adhesive tape
23
is set as the outer surface as shown in FIG. 10, the adhesive surface
23A
adheres onto an inner surface
2a of the lid
2 or other portions
and so on, when the roll staple
20 is rotated as the binding band
21
is pulled out, it causes that a strong force is required to pull out the binding
band
21, and there may be cases that loadability of the roll staple is damaged.
For example, when the adhesive tape
23 fixedly adheres onto an inner surface
of the loading room
6, a strong pulling out force is required to peel off
this adhesion, it may cause a case that the tab portion
22 which is made
of paper is broken by the strong force, and the pulling out could not be completed.
Further, when a strong force is required for this pulling out, in many cases
the pulling out is usually done with much prepared impetus, because of this, the
leading end portion
20a of roll staple
20 strongly collides
against the guide hole
12a or a portion near by an entrance of the
guide path
12, the impact of it may cause an alignment of staples made uneven.
In such case, there may be that the leading end portion
20a of roll
staple
20 could not be carried through the guide path to the punching portion
13 which is arranged adjoining to a top end of the guide path
12
because the guide path
12 is narrow.
SUMMARY OF THE INVENTION
The purpose of the invention is to provide a roll staple cartridge in which the
binding band can be pulled out with small force.
The present invention has a feature that a roll staple cartridge comprising:
a cartridge body having a loading room to load a roll staple which is formed of
sheet staple wound in roll shape; and a lid openably and closably arranged at an
opening hole which is made to load said roll staple in said cartridge body; wherein
said roll staple is bound by a binding band which has narrower width than said
roll staple and whose trailing end portion is adhered peelably at the leading end
portion of said roll staple and which is wound around said roll staple and adhered
peelably at the leading end portion onto an adhesive surface made at an outer surface
of the trailing end portion thereof; said cartridge body is provided with a punching
out portion from which a staple is punched out, and a guide path through which
said staple is carried to said punching out portion; a leading end portion of said
binding band is made capable of being pulled out in a state that said lid is closed;
and said roll staple is made to be turned in said loading room by pulling out operation
of the leading end portion of said binding band, and thereby to be guided so as
to guide the leading end portion of said roll staple into said guide path; characterized
in that: roll abutment portions are formed in an inner surface of said loading
room so as to hold rotatably said roll staple with striding said binding band which
are wound around the outer surface of said roll staple to prevent a contact of
the adhesive surface of said binding band with the inner surface of said loading room.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a staple cartridge according to the present
invention in a state that a lid of it is opened.
FIG. 2 is a schematic side view of the staple cartridge of FIG. 1 in the state
that the lid of it is opened.
FIG. 3 is a schematic side view of the staple cartridge of FIG. 2 in a state
that the lid of it is closed.
FIG. 4 is a schematic side view of the staple cartridge of FIG. 2 in a state
that a roll staple is loaded on the staple cartridge,
FIG. 5 is a partial cross sectional view of the staple cartridge of FIG. 4 when
it is cut along the line X—X.
FIG. 6 is a rough sketch of perspective view of a roll staple.
FIG. 7 is a rough sketch of perspective view of the roll staple of FIG. 6 in
a state that binding of a binding band is loosed.
FIG. 8 is an explanatory view showing a state in which a roll staple is bound
by a binding band.
FIG. 9 is an explanatory view showing a staple cartridge of prior art.
FIG. 10 is an explanatory view showing a state in which a roll staple is made
to turn according as the binding band is pulled out.
FIG. 11 is an explanatory view showing a state in which a leading end portion
of a roll staple is guided to a guide path according as the binding band is pulled out.
FIG. 12 is an explanatory view showing another roll staple.
DETAILED DESCRIPTION OF THE EMBODIMENT
Hereinafter an embodiment of the roll staple cartridge according to the
present invention will be described with reference to drawings. The portions and
members which are equal or equivalent to those in prior art are designated with
the same symbols and explanation for those parts will be omitted.
FIG. 1 to FIG. 5 show one example of embodiment of staple cartridge according
to the present invention.
This staple cartridge
1 comprises a cartridge body
40 in which
a loading room
6 is provided to load a roll staple
20 as shown in
FIG. 6, a lid
2 which is openably and closably provided onto the cartridge
body
40, a sending means
30 which is provided at a bottom portion
of the cartridge body
40 and so on.
The cartridge body
40 comprises a back wall
4 which is formed circularly,
a pair of side walls
42,
42 which are formed in one body with the
both sides of the back wall
4 and same time arranged to get longer along
a direction of a guide path
12 as going downward, another pair of side walls
3,
3 which are formed in one body with inside of the both side walls
42,
42, the front edges
3a,
3a of them
are formed in half circular and protruding frontward from slanted surfaces
42a,
42a of the side walls
42,
42, a guide table
7
provided in one body at an under portion of the side walls
42,
42
and a guide wall
14 which is provided in front and upper portion of the
guide table
7 in one body with and between the side walls
42,
42.
And the loading room
6 is formed with the back wall
4, side walls
3,
3, and the guide table
7 and an opening hole
43
to load the roll staple
20 is formed in front side of this loading room
6. The guide path
12 is formed with the guide wall
14 and
the guide table
7 to guide the staple. At a front end of this guide path
12, a punching portion
13 (See FIG. 9) is provided to punch out a staple.
At a back portion of the guide wall
14 a slanted surface
14a
is formed so that it is climbing up toward its front side (left side in FIG.
2). Further, in the both sides of the guide wall
14, a pair of holding
portions
8,
8 are arranged which protrudes toward backside. A spacing
distance between these holding portions
8,
8 is arranged larger than
the width of binding band
21 of the roll staple
20 (See FIG.
6).
As shown in FIG. 2, circular holding surfaces
8a,
8a are
formed in upper right portion of these holding portions,
8,
8.
A predetermined spacing is formed between these holding portion
8,
8
and the guide table
7, and this spacing is a guide carrying path
12b
to guide a staple to the guide path
12. A back portion and an under
portion of the holding portions
8,
8 become guide surfaces
8b,
8b which are gently curved. And a guide hole
12a is
formed between the back portion of holding portions
8,
8 and under
portion of the back wall
4 and the guide hole
12a becomes
an entrance of a guide carrying path
12c.
Moreover in both side end portions of inner surface of the back wall
4,
roll abutment portions
10,
10 are formed, which are made of thicker
portions with their thickness of about 0.2 mm (the thickness depicted in the drawings
is exaggerated, and surfaces of these roll abutment portions
10,
10
are arranged to become circular abutment surfaces
10a,
10a.
A spacing width between the roll abutment portions
10,
10 is set
wider than a width of the binding band
21 of roll staple
20. The
thickness of roll abutment portion
10 is set in order not for the adhesive
tape
23 of roll staple
20 to contact with an inner surface of the
back wall
4, and it may be larger than 0.2 mm.
The lid
2 is formed in circular shape, and the back portions of the lid
2 are supported by supporting shafts
5,
5 which are provided
on an upper portion of the side walls
42,
42 of cartridge body
40,
the lid
2 is arranged in order to open and close the opening hole
43
of cartridge body
40 with a rotation around the supporting shafts
5,
5.
An inner surface of the lid
2 is formed in circular shape, and in both
side end portions of the inner surface of the lid
2, roll abutment portions
2A,
2A are formed along an inner surface
2a, which
are made of thicker portions with their thickness of about 0.2 mm, and surfaces
of these roll abutment portions
2A,
2A are arranged to become circular
abutment surfaces
2b,
2b. Again the spacing width between
the roll abutment portions
2A,
2A is set wider than the width of
the binding band
21 of roll staple
20.
In a central portion of front end of the lid
2, a protruding portion
11
which is protruding along a circumferential direction of the lid
2, is formed.
As shown in FIG. 1 three ribs
11R which are extending along circumferential
direction of the lid
2, are formed in an upper surface of the protruding
portion
11. A guide surface
11a which has the same shape of
the guide surface
8b of holding portion
8, and a facing surface
11c which is facing to the slanted surface
14a of guide
wall
14 are formed on the upper portion of respective ribs
11R as
shown in FIG.
2. And when the lid
2 is closed as shown in FIG. 3,
the protruding portions
11 are inserted between the holding portions
8,
8 of loading room
6, and the guide surface
11a of ribs
11R and the guide surface
8b of holding portion
8 are
matched together, and the facing surface
11c of rib
11R is
facing to the slanted surface
14a of guide wall
14, as a result
a spacing
15 which has a predetermined size, is arranged to be formed between
the slanted surface
14a and the facing surface
11c.
An entering hole of the lower portion of this spacing
15 is arranged to
adjoin the guide path
12, and the spacing
15 is used as an exit hole
in order to pass the binding band
12.
Hereinafter an operation of the staple cartridge
1 which is composed
as described above, will be explained.
First, the lid
2 is opened as shown in FIG.
1 and FIG. 2, then
the roll staple
20 which is shown in FIG. 6, is loaded in the loading room
6. And the binding band
21 of the roll staple
20 is brought
into a state that it is put on the slanted surface
14a of the guide
wall
14, and at the same time the tab portion
22 is brought into
a state that it is pulled out on the guide wall
14, then the lid
2
is closed. As a result of these operations the binding band
21 is pulled
out from the guide hole
12a through the guide carrying path
12c
to the spacing
15, and it is brought into a state that the binding band
21 is pulled out from the spacing
15.
In this state the leading end of binding band
21 is peeled off from the
adhesive surface
23A of the adhesive tape
23, and the adhesive surface
23A is exposed and located between the holding portions
8 and
8,
or between the roll abutment portions
2A and
2A.
On the other hand the roll abutment surfaces
10a,
10a
of the roll abutment portions
10,
10, the holding surface
8a
of the holding portions
8,
8, and the abutment surfaces
2b,
2b of the roll abutment portions
2A,
2A hold cooperatively
the roll staple
20 so as to be rotatable striding the binding band
21
of the roll staple
20. By the arrangement of this, the exposed adhesive
surface
23A of the adhesive tape
23 would not contact with the inner
surface
2a of the lid
2 or other surfaces as shown in FIG.
5.
When the tab portion
22 is pulled out further on, the roll staple
20
is made to turn according as the pulling out in the loading room
6 in the
direction designated with the arrow shown in FIG.
4. At this moment the
roll staple
20 turns around on so that the adhesive surface
23A of
the adhesive tape
23 would not contact with the inner surfaces of the loading
room
6 because the holding surface
8a,
8a and
the abutment surfaces
10a,
10a and
2b,
2b contact with the outer surface of the roll staple
20 striding
the binding band
21.
After the roll staple
20 turns in almost one round along the inner surface
of the loading room
6, the leading end
20a of the roll staple
20 is lead from guide hole
12a through the guide carrying
path
12b to the guide path
12 in accordance with the pulling
out of the tab portion
22.
Herein, the leading end portion
20a of the roll staple
20
which has been lead through the guide table
7, collides with a trailing
end of the staples remaining in the guide path
12 and the forward movement
of it, has been stopped.
At this moment as the tab portion
22 is strongly pulled out, the binding
band
21 and the adhesive tape
23 are peeled off from the leading
end portion
20a of the roll staple
20 and pulled out, the
loading of roll staple
20 has been completed. When in a case that any of
staples has not remained in the guide path
12, the leading end portion
20a
is carried and set at a predetermined operating point in the guide path
12.
Rotation of the roll staple
20 is not disturbed by the adhesive surface
23A of the adhesive tape
23 during these series of steps for the
tab portion
22 to be pulled out. By this arrangement, pulling out of the
tab portion
22 does not require much force because a pulling out force,
which is required to pull out the tab portion
22, is only a force which
is required enough to peel off the adhesive tape
23 from the roll staple
20. Moreover, it never happen that the tab portion
22 is damaged
and cannot be pulled out, or that the leading end portion
20a collides
against the guide path
12 because of too much pulling out force. By these,
troubles that may happen in the loading process of the roll staple
20, are
substantially dissolved.
In the above described embodiment, the binding band
21 is peelably adhered
by the adhesive tape
23 onto the leading end portion
20a of
the roll staple
20, however, it may be utilized that an adhesive material
is painted on the outer surface near the trailing end of the binding band
21
to form a adhesive surface, then a part of the adhesive surface is adhered peelably
onto the leading end portion
20a of the roll staple
20 and
at the same time the binding band
21 is wound one round around the roll
staple
20 and a leading end portion of the binding band
21 is adhered
peelably onto the remaining portion of the adhesive surface.
FIG. 12 shows another roll staple
120, and in this roll staple
120
the adhesive surface
21c is formed at an inner surface of the trailing
end portion
21a of the binding band
21, then the leading end
portion
20a of the roll staple
120 is arranged to be adhered
onto this adhesive surface, moreover another adhesive surface
21d is
formed at an inner surface of the leading end portion
21b of the
binding band
21, finally the adhesive surface
21c is arranged
to adhere onto an outer surface of the trailing end portion
21a of
the binding band
21.
The roll staple
120 is loaded onto the staple cartridge
1 in the
same manner as described above, in this roll staple the outer surface of the binding
band
21 does not contact with the inner surface of the loading room
6
when the binding band
21 is pulled out from the roll staple. By this arrangement
the pulling out of the binding band
21 can be smoothly achieved.
[Modification 1 of the Embodiment]
In the above described embodiment, the abutment portions
10,
10
is arranged as a thicker portions which is made in one body with the lid
2
or the back wall
4, however, they are not limited to the thicker portions
as far as the step structure has been made.
For example, the abutment portions
10,
10 and
2A,
2A
may be formed by strips of film or sheet adhered onto the inner surfaces
2a
of the lid
2 and the inner surface of back wall
4 with much wider
spacing than the width of the binding band
21. Herein it shows enough effect
when the thickness of this film is about 0.2 mm, however, the thickness may be
much thicker.
[Modification 2 of the Embodiment]
It is preferable that material which has low frictional resistance is selected
as these film or sheet for the modification 1. By this selection the rotation of
the roll staple
20 can be smoothly performed even when the outer surface
of roll staple
20 gets into contact with such film or sheet because the
frictional resistance is low. As an example of this material, a film made of Teflon
can be brought up.
*
