JP2003165093A - Seal cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manual seal cutter capable of adjustment-setting easily and precisely a clearance between a blade edge and a seal supporting face part for half- cutting. <P>SOLUTION: In this seal cutter, tip parts of paired half-bodies 2 provided with grasping part 1 each are pivotally connected, the blade edge 4 is formed in one side in tip side faced inner edges of the half-bodies 2 and the supporting face part 6 for a seal 5 is formed in the other side so as to provide a clamp-cutting part 7, a locking protrusion 8 for making the edge 4 not abut to the supporting face part 6 by abutting to the other-side clamping half-body 2 is provided in the vicinity of a pivotally connected part 3 of the one-side half-body 2, a holding protrusion 9 for precluding the edge 4 from abutting to the supporting face part 6 to generate the clearance a by abutting to the other-side clamping half-body 2 is provided in the vicinity of the clamp- cutting part in a grasping part 1 side of the one-side clamping half-body 2, the grasping parts 1 are grasped and the cutting part 7 is grasped strongly to bring the locking protrusion 8 and the holding protrusion 9 into contact with the other-side clamping half-body 2, the clearance a between the edge 4 and the supporting face part 6 is adjustment-set, under the condition hereinbefore, to the clearance a capable of cutting only a seal part 5A of the seal 5 supported to the supporting face part 6, by the edge 4. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual seal cutter capable of cutting only a seal portion without cutting release paper.

[0002]

2. Description of the Related Art Conventionally, a cutting blade is mechanically controlled to come into contact with and separate from a seal bearing portion to cut only a seal portion without cutting a release paper of a seal. A mechanically operated seal cutter (half cutter) that can be used has been proposed, but this type of seal cutter did not have a simple manual type.

In view of this point, the present invention is a manual type seal cutter having a simple structure which has never existed before, and it is easy to adjust and set the gap between the blade edge and the seal bearing surface portion when the sandwiching cutting portion is sandwiched. The present invention provides an epoch-making seal cutter that is easy to manufacture and that does not cause a gap to be set with high accuracy to cut the release paper or the edge of the blade to spill.

[0004]

The gist of the present invention will be described with reference to the accompanying drawings.

[0005] The tip ends of a pair of sandwiching halves 2 provided with a grip portion 1 on the base end side are superposed and axially attached, and the ends of the pair of sandwiching halves 2 which are opened and closed via the shaft attaching portion 3 The blade edge 4 is formed on one of the opposing inner edges on the side, and the bearing surface portion 6 for receiving and supporting the seal 5 is formed on the other side to provide the sandwiching cutting portion 7, and the shaft attachment portion 3 of the sandwiching half body 2 on one side or the other side. In the vicinity, there is provided a locking projection 8 that prevents the blade edge 4 from coming into contact with the bearing surface portion 6 by abutting the other or one of the sandwiching halves 2 when the sandwiching cutting portion 7 is sandwiched, and one or the other of them. Of the clamping half 2
In the vicinity of the gripping cutting portion 7 on the side of the gripping portion 1, a holding for holding the other edge or one of the holding halves 2 so that the blade edge 4 does not abut the bearing surface portion 6 and a minute gap a is generated. Protrusions 9 are provided, and by gripping the gripping portion 1 and strongly sandwiching the sandwiching / cutting portion 7, the locking projection 8 is brought into contact with the other or one of the sandwiching halves 2 and the holding projections The part 9 is brought into contact with the other or one of the sandwiching halves 2, and in this state, the gap a between the blade edge 4 and the bearing surface 6 is cut off the release paper 5B of the seal 5 supported by the bearing surface 6. The present invention relates to a seal cutter, which is characterized in that the blade edge 4 is adjusted and set to a gap a capable of cutting only the seal portion 5A.

[0006] Further, the tip ends of a pair of sandwiching halves 2 provided with a grip portion 1 on the base end side are superposed on each other and axially attached.
A blade edge 4 is formed on one of the opposing inner edges on the tip side of the pair of holding halves 2 that are opened and closed via a seal, and a seal 5 is provided on the other.
A supporting surface portion 6 for receiving and supporting is provided with a sandwiching cutting portion 7, and one or the other sandwiching half body 2 is provided near the shaft attaching portion 3;
When the sandwiching cutting portion 7 is sandwiched, a locking projection 8 is provided to prevent the blade edge 4 from coming into contact with the bearing surface portion 6 by coming into contact with the other or one of the sandwiching halves 2, and the opposite gripping portion 1 is provided. A holding convex portion 9 for holding either one or both of the inner edges so as to contact the inner edge of the gripping portion 1 which is opposed to the blade edge 4 so as not to abut the bearing surface portion 6 and form a minute gap a. Is provided
By gripping the gripping portion 1 and strongly gripping the gripping cutting portion 7, the locking projection 8 is brought into contact with the other or one of the gripping halves 2 and the holding projection 9 is gripped. The blade edge 4 is brought into contact with the opposing inner edges of the blade 1 and the gap a between the blade edge 4 and the bearing surface portion 6 is cut in this state without cutting the release paper 5B of the seal 5 supported on the bearing surface portion 6. The present invention relates to a seal cutter, which is configured to adjust and set a gap a capable of cutting only the seal portion 5A.

Further, the blade edge 4 is provided at the tip of one of the sandwiching halves 2 so that the blade edge 4 can be adjusted to slide in and out relative to the opposing bearing surface portion 6, and the slide edge is adjustable. A fastening tool (10) for fastening and fixing (4) to the tip portion of one holding half body (2) is provided at the blade edge (4) and the tip portion of the one holding half body (2). , 2 relates to the seal cutter according to any one of the items.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention (how to carry out the invention) will be briefly described with reference to the drawings and showing its function and effect.

According to the present invention, by strongly gripping the gripping portion 1 and strongly gripping the sandwiching cutting portion 7, the engaging convex portion 8 is brought into contact with the other or one of the sandwiching half bodies 2 facing each other, and The holding convex portion 9 is brought into contact with the other or one of the sandwiching half bodies 2 facing each other, or the inner edge of the grip portion 1, and in this state, a gap a between the blade edge 4 and the bearing surface portion 6 is provided on the bearing surface portion 6. The blade edge 4 does not cut the release paper 5B of the supported seal 5 and the seal portion 5A
Adjustment and setting are made so that the gap a can be cut.

At this time, the locking projection 8 near the shaft mounting portion 3
When the clamping cutting portion 7 is strongly clamped and comes into contact with the other or one of the clamping halves 2, the locking convex portion 8 serves as a fulcrum and the backlash of the shaft mounting portion 3 is absorbed.

That is, the shaft mounting portions 3 of the pair of holding halves 2 are
For example, since a gap is inevitably formed between the shaft and the bearing hole that receives this shaft, if the clamp cutting portion 7 is strongly clamped,
Even if the locking projection 8 is provided, a problem such as the blade edge 4 coming into contact with the bearing surface portion 6 due to the looseness of the shaft attachment portion 3 may occur, but in the present invention, the clamping cutting portion 7 is strongly clamped and engaged. By bringing the stop projection 8 into contact with the sandwiching half 2, the shaft attachment 3
Artificially creates a state in which the backlash is suppressed, and further, the holding half 9 is provided in the vicinity of the holding / cutting part 7 on the side of the holding part 1 of the holding half 2 or the holding projection 9 provided in the holding part 1. Alternatively, the state in which the gripping portion 1 is brought into contact with the inner edge of the grip portion 1, that is, the sandwiching cutting portion 7
Since the adjustment is performed so that the above-mentioned gap a is generated between the blade edge 4 and the bearing surface portion 6 in a state where the clamping operation has reached the limit, the finished product (the product of the present invention) has the clamping cutting portion 7. Even if the blades 4 are strongly pinched, before the blade edge 4 comes into contact with the bearing surface portion 6, the locking projection 8 surely comes into contact with the opposing holding half 2 and the holding projection 9
Abut on the inner edge of the sandwiching half 2 or the gripping portion 1 facing each other, whereby a minute gap a is formed between the blade edge 4 and the bearing surface portion 6.

Therefore, if the release paper 5B side is supported by the support surface portion 6 and the seal 5 is sandwiched by the sandwiching cutting portion 7, a minute gap a is surely secured between the blade edge 4 and the support surface portion 6. The edge 4 does not reach the release paper 5B,
Only A will be reliably cut.

Further, since the present invention is a manual type seal cutter (half cutter) which has never been used, it is easy to handle, and the design can be easily realized with a simple structure as compared with the mechanical operation type. It becomes an excellent seal cutter.

Further, for example, the blade edge 4 is provided at the tip of one of the sandwiching halves 2 so that it can be slid and adjusted with respect to the opposing bearing surface portion 6, and this slide adjustment is possible. If a fastening tool 10 for fastening and fixing the blade edge 4 to the tip portion of the one holding half body 2 is provided on the blade edge 4 and the tip portion of the one holding half body 2, the blade edge 4 is fixed. It is possible to easily perform the work of setting the gap a with respect to the bearing surface portion 6 of the blade edge 4 by adjusting the protruding and retracting slide, and the fixing work after the position adjustment of the blade edge 4 is simply performed by the tightening work of the tightening tool 10. Since it is performed easily, the gap a between the blade edge 3 and the bearing surface portion 6 can be set more easily.

[0015]

Embodiments of the present invention will be described with reference to the drawings.

1 to 4 show the first embodiment, and FIGS. 5 and 6 show the second embodiment.

The first embodiment will be described.

In this embodiment, as shown in FIGS. 1 and 2, a pair of clamping halves 2 having an annular gripping portion 1 into which a finger can be inserted at the proximal end side is superposed on the tip end portions of the two clamping half bodies 2 to form a shaft. A pair of holding halves 2 that are opened and closed through the shaft mounting portions 3 are provided with a blade edge 4 on one of the opposing inner edges on the tip side and a bearing surface portion 6 for receiving and supporting a seal 5 on the other. And the sandwich cutting section 7 is provided,
The gripping cutting section 7 is configured as a manual (handheld type) seal cutter which is operated by gripping the gripping section 1.

Further, the nipping and cutting section 7 will be further described. As shown in FIGS. 3 and 4, a substantially rectangular flat blade plate 14 having a blade edge 4 is provided, and the nipping half 2 having one of the blade edges 4 is used. It is attached and fixed to the tip of one of the sandwiching halves 2 so as to be located inside the facing half of the sandwiching half 2 on the upper side of the drawing, and a predetermined range on the tip side of the other sandwiching half 2 is L-shaped in cross section. A flat surface portion is formed by bending the blade surface at a right angle to the plate surface of the blade plate 14, and this flat surface portion serves as the bearing surface portion 6.

Further, a guide portion 11 for locating the seal 5 supported by the bearing surface portion 6 in a state in which the seal 5 supported by the bearing surface portion 6 is not easily laterally displaced is attached to a side portion of the bearing surface portion 6.

As shown in FIGS. 1 to 3, the guide portion 11 is composed of a member having a substantially concave shape when viewed from the front,
The guide portion 11 is attached to a side portion of the bearing surface portion 6 so that the recessed surface on the upper portion thereof and the bearing surface portion 6 are substantially flush with each other. Then, the seal 5 is positioned and arranged in a recess in the upper portion of the substantially concave guide portion 11 in a stable state in which the seal 5 is unlikely to be laterally displaced.

Further, in this embodiment, when the sandwiching cutting portion 7 is sandwiched in the vicinity of the shaft attachment portion 3 of one sandwiching half body 2, the sandwiching half body 2 is brought into contact with the other sandwiching half body 2 and the blade edge 4 is supported. The locking projection 8 is provided so as not to contact the surface 6.

More specifically, as shown in FIGS. 1 to 3, at the inner edge portion of one holding half body 2 near the shaft attachment portion 3,
Square protrusions projecting toward the other holding half body 2 are integrally connected to each other, and the protrusions serve as locking protrusions 8.

Further, the locking projection 8 is configured to come into contact with the bearing surface portion 6 of the other sandwiching half 2 when the sandwiching cutting portion 7 is sandwiched.

Therefore, in this way, the locking projection 8 is attached to the shaft mounting portion 3
Since it is provided in the vicinity of, when the clamping cutting section 7 is clamped,
When the locking projection 8 comes into contact with the other sandwiching half 2 (bearing surface portion 6) and the sandwiching cutting portion 7 is strongly sandwiched, the locking projection 8 serves as a fulcrum and looseness of the shaft mounting portion 3 is eliminated. Is configured to be able to be satisfactorily absorbed.

Further, even if the engaging projection 8 bends while abutting against the bearing surface portion 6 by strongly gripping the grip portion 1,
The projecting degree is set such that the tip of one holding half body 2 does not come into contact with this bearing surface 6 and the bearing surface 6 and the tip of one holding half body 2 are in a substantially parallel state.

Further, in this embodiment, one holding half body 2 is used.
In the vicinity of the gripping cutting portion 7 on the side of the gripping portion 1, the holding is performed such that the blade half 4 is held in contact with the other holding half 2 so that the blade edge 4 does not contact the bearing surface portion 6 and a minute gap a is formed. The convex portion 9 is provided.

More specifically, as shown in FIGS. 1 and 2, the inner edge of the one clamping half 2 in the vicinity of the clamping cutting portion 7 projects toward the other clamping half 2. The rectangular protruding pieces are integrally connected to form a holding convex portion 9.

The holding projection 9 is the locking projection 8
The protrusion degree is set so that when the bearing contacts the bearing surface portion 6, it contacts the inner edge of the other sandwiching half body 2.

Further, in the present embodiment, the blade edge 4 is provided at the tip of one of the sandwiching halves 2 so that the blade edge 4 can be slid and adjusted with respect to the opposing bearing surface portion 6, and the slide is performed. A fastening tool 10 for fastening the adjustable blade edge 4 to the tip portion of one holding half body 2 is provided on the blade edge 4 and the tip portion of the one holding half body 2.

More specifically, as shown in FIG.
A fastening hole 12 is formed in the blade plate 14, and a fastening tool 10 using a screw is inserted into the fastening hole 12 to insert the tip of the fastening tool 10 into the tip portion of one holding half body 2. The blade plate 14 is fastened and fixed to the tip portion of the one holding half body 2 by screwing the blade plate 14 on the blade plate 14. Reference numeral 13 in the drawing is a washer.

Further, the fixing hole 12 of the blade plate 14 is formed as a long hole having a little length in the vertical direction in FIG. 4, whereby the tightening tool 10 is loosened to allow the blade edge of the blade plate 14 to be loosened. 4 is provided so that it can be slidably and slidably adjusted with respect to the tip of one of the sandwiching halves 2, and after the slide adjustment, the tightening tool 10 is tightened again to tighten the blade edge 4 to an arbitrary position for positioning. It can be fixed.

In this embodiment, by gripping the gripping part 1 and strongly gripping the sandwiching cutting part 7, the locking projection 8 is locked to the other sandwiching half 2 and the holding projection is held. The portion 9 is brought into contact with the opposing inner edge of the other holding half body 2, and in this state, the gap a between the blade edge 4 and the bearing surface portion 6 is cut off the release paper 5B of the seal 5 supported by this bearing surface portion 6. Instead, the blade edge 4 is adjusted and set to a gap a capable of cutting only the seal portion 5A.

More specifically, first, the sandwiching and cutting section 7 will be described.
Is strongly clamped, and the locking projection 8 is brought into contact with the other clamping half 2 to artificially create a state in which the backlash of the shaft mounting portion 3 is suppressed.

Further, in this state, the holding projections 9 are also in contact with the inner edges of the opposite sandwiching halves 2, so that the sandwiching cutting portion 7 reaches the limit of the sandwiching operation, and further in the sandwiching closing direction. It will not work.

While looking at the magnifying glass in this state, the blade edge 4 (blade plate 14) is slid to approach the bearing surface portion 6, and the gap a between the blade edge 4 and the bearing surface portion 6 is 0.04 mm ± 0.008.
Adjust and set to mm. By setting the gap a between the blade edge 4 and the bearing surface portion 6 in this manner, it becomes possible to cut only the seal portion 5A of the seal 5 excluding the release paper 5B.

Therefore, since a gap is formed between the shaft and the bearing hole in the shaft attachment portion 3 of such an approximate scissor type hand tool, when the clamp cutting portion 7 is strongly clamped, the locking convex portion is formed. 8
Even if there is, the blade edge 4 causes the bearing surface portion 6
However, in this embodiment, even if the clamping and cutting section 7 is strongly clamped, this strong clamping absorbs the looseness of the shaft attachment section 3 and limits the clamping operation. Since the gap a between the blade edge 4 and the bearing surface portion 6 is adjusted as described above in the state where the blade edge 4 is held, the blade edge 4 is supported by the bearing surface portion 6 when the holding cutting portion 7 of the completed seal cutter is held.
Therefore, the gap a set as described above is surely generated between the blade edge 4 and the bearing surface portion 6.

Therefore, if the seal 5 is supported on the bearing surface portion 6 with the release paper 5B facing downward and the sandwiching cutting portion 7 is sandwiched, the gap between the blade edge 4 and the bearing surface portion 6 is surely small. Therefore, only the seal portion 5A is cut (half cut) without the gap a being secured and the blade edge 4 reaching the release paper 5B.

The second embodiment will be described.

The present embodiment shows a case where the forming position of the holding projection 9 is different from that of the first embodiment.

More specifically, in the present embodiment, the blade edge 4 is supported on the inner edges of both of the facing gripping portions 1 by contacting the inner edges of the facing gripping portions 1. Holding convex portion 9 which holds without contact with
Is provided.

More specifically, as shown in FIGS. 5 and 6, protrusions are formed integrally with both gripping portions 1 at the midpoints of both inner edges of the pair of gripping portions 1. Both protrusions protruding in this opposing state are used as the holding projections 9 so that when the pair of gripping portions 1 is gripped and the sandwiching cutting portion 7 is sandwiched, both the holding projections 9 come into contact with each other. I am configuring. That is, both of the holding protrusions 9 are configured to abut on the holding protrusions 9 that are a part of the inner edge of the grip portion 1 on the opposite side.

Further, the holding convex portion 9 corresponds to the locking convex portion 8
The projecting degree is set so that when they come into contact with the bearing surface portion 6, they come into contact with each other.

Although not shown in the present embodiment, the holding projection 9 is projected only on one of the opposing gripping portions 1, and the holding cutting portion 7 holds the holding projection 9 while the holding cutting portion 7 is held. May contact the inner edge of the other grip portion 1.

The present invention is not limited to this embodiment, and the specific constitution of each constituent element can be designed appropriately.

[0046]

Since the present invention is constructed as described above, it is a manual type seal cutter which is easy to handle and has a simple structure, and a hand which is formed by superposing a pair of such sandwiching halves on a polymer shaft. Since the tool has backlash at the shaft attachment part, if the clamping cutting part is strongly pinched, even if there is a locking protrusion due to the backlash of the shaft attachment part, problems such as the blade edge contacting the bearing surface part may occur. However, in the present invention, the clamping cutting portion is strongly clamped and the locking convex portion is brought into contact with the clamping half body to bend, thereby artificially creating a state in which rattling of the shaft attachment portion is suppressed in advance. Further, in this state, the holding convex portion provided on the gripping portion side is brought into contact with the opposing half of the sandwiching half or the inner edge of the gripping portion, that is, in the state of complete sandwiching operation limit, the blade edge and the bearing surface portion. Adjust the settings so that there is a gap that can be half-cut only in the seal part of the seal Performed because, never cutting edge comes into contact with the bearing surface, a breakthrough seal cutter was soo been very practical to be that only the sealing portion of the seal is reliably cut.

According to the third aspect of the invention, it is possible to easily adjust the clearance of the blade edge with respect to the bearing surface portion by sliding it in and out, and the fixing work after adjusting the position of the blade edge is simply a fastening tool. Since it is easily performed by tightening the
The seal cutter is extremely practical because the gap between the blade edge and the bearing surface can be set more easily.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a front view showing a state in which a sandwiching / cutting portion of the first embodiment is opened.

FIG. 3 is a perspective view showing a state in which the seal portion of the seal is cut by the sandwich cutting portion of the first embodiment.

FIG. 4 is an enlarged sectional view of a main part in FIG.

FIG. 5 is a front view showing a second embodiment.

FIG. 6 is a front view showing a state in which a sandwiching / cutting portion of the second embodiment is opened.

[Explanation of symbols]

1 grip section 2 clamping half 3 Shaft attachment 4 blade edge 5 seals 5A seal part 5B release paper 6 bearing surface 7 Clamping cutting part 8 Locking protrusion 9 Holding protrusion 10 Fastener a gap

Claims (3)

[Claims] 1. A pair of sandwiching halves each having a gripping portion on the base end side are superposed on each other to be axially attached to each other, and the pair of sandwiching halves which are opened and closed through the shafting portions are provided on the distal end side. A cutting edge is formed on one of the opposing inner edges and a bearing surface part is formed on the other side to receive and support a seal, and a sandwiching cutting portion is provided, and the sandwiching cutting portion is sandwiched in the vicinity of the shaft attachment portion of one or the other sandwiching half body. When the gripping portion side is provided, a locking projection is provided to prevent the blade edge from coming into contact with the bearing surface portion by abutting against the other or one of the holding halves, and one or the other holding half on the side of the gripping portion. In the vicinity of the portion, there is provided a holding convex portion that abuts on the other or one of the sandwiching halves to hold the blade edge so as not to abut the bearing surface portion so as to form a minute gap, and grip the gripping portion. By strongly sandwiching the sandwiching cutting portion, the locking convex portion is brought into contact with the other or one sandwiching half body. At the same time, the holding convex portion is brought into contact with the other or one of the sandwiching halves, and in this state, the gap between the blade edge and the bearing surface portion is cut without cutting the release paper of the seal supported on the bearing surface portion. A seal cutter having a structure in which an edge is adjusted and set to a gap capable of cutting only a seal portion. 2. A pair of sandwiching halves having gripping portions on the base end side are superposed on each other to be axially attached to each other, and the pair of sandwiching halves which are opened and closed via the axially attaching portions. A cutting edge is formed on one of the opposing inner edges and a bearing surface part is formed on the other side to receive and support a seal, and a sandwiching cutting portion is provided, and the sandwiching cutting portion is sandwiched in the vicinity of the shaft attachment portion of one or the other sandwiching half body. In this case, a locking projection is provided so as to prevent the blade edge from coming into contact with the bearing surface portion by abutting the other or one of the sandwiching halves, and facing either or both of the inner edges of the gripping portion that face each other. A holding convex portion is provided that abuts on the inner edge of the gripping portion and does not abut the blade edge on the bearing surface portion so as to generate a minute gap, and grips the gripping portion to form a sandwiching cutting portion. By strongly pinching, the locking protrusion is brought into contact with the other or one of the holding halves, and The holding convex portion is brought into contact with the facing inner edge of the gripping portion, and in this state, the blade edge seals the gap between the blade edge and the bearing surface portion without cutting the release paper of the seal supported on the bearing surface portion. A seal cutter characterized in that the gap is adjusted so that only the portion can be cut. 3. The blade edge is provided at the tip of one of the sandwiching halves so that the blade edge can be slid and adjusted with respect to the opposing bearing surface portion, and the slide adjustable blade edge is provided on one side. The fastening tool for fastening and fixing to the tip portion of the holding half body is provided on the blade edge and the tip portion of the one holding half body, according to any one of claims 1 and 2. The seal cutter described.