JP6711095B2 - Sheet cutting tool - Google Patents

Description

The present invention relates to a sheet cutting tool for cutting a sheet such as paper.

Conventionally, a sheet cutting tool including a blade for cutting a sheet such as a sheet has been known (for example, see Patent Document 1).

Since the blade inevitably deteriorates with repeated use, there are sheet cutting tools configured so that the blade can be replaced. However, in the conventional case, since the tip of the blade is exposed when the blade is replaced, the user's finger is likely to hit and the user's finger may be injured.

Japanese Utility Model Publication No. 61-160870

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a sheet cutting tool in which it is difficult for the user's hand to reach the tip of the blade when replacing the blade.

That is, the present invention has the following configuration.

The invention according to claim 1 is a sheet cutting tool including a blade unit having a flat blade for cutting a sheet, and a support body capable of detachably supporting the blade unit. , the cutting unit, said cutter, and the unit formed member on which supports the upper end side of the tip portion of the blade, and the unit-forming member of the lower supporting the lower end of the tip portion of the blade, the blade of and in the base end side that a base end side unit formation member for supporting, which front end portions of these upper and lower units forming member is positioned on the front side than the tip portion, the tip The portion is set to a substantially linear shape, and is capable of abutting on the sheet at an angle inclined with respect to the angle orthogonal to the sheet surface of the cut portion, the base end side unit forming member, It is a sheet cutting tool which is arranged in a posture inclined with respect to the lower unit forming member when viewed from the rear .

According to a second aspect of the present invention, the base end side unit forming member is configured to make a trajectory of one sheet portion cut by the blade different from a trajectory of the other sheet portion cut by the blade. Sheet guide means of the first sheet guide means, the first sheet guide means, one groove-shaped portion for guiding the cut edge of the one sheet portion, and the cut end of the other sheet portion. The sheet cutting tool according to claim 1 , further comprising another groove-shaped portion for guiding the edge .

According to a third aspect of the present invention, the support body has an upper support portion capable of supporting the upper unit forming member, a lower support portion capable of supporting the lower unit forming member, and the base end unit. A connecting portion arranged on the rear side of the forming member to connect the upper supporting portion and the lower supporting portion, the connecting portion being along the base unit forming member in rear view. The sheet cutting tool according to claim 1 or 2, wherein the sheet cutting tool is arranged in an inclined posture with respect to the lower support portion .

The invention according to claim 4 is a second sheet guiding means for causing the connecting portion to have a different trajectory for one sheet portion cut by the blade and for the other sheet portion cut by the blade. And the second sheet guiding means guides one groove-shaped portion for guiding the cutting edge of the one sheet portion and the cutting edge of the other sheet portion. it is obtained by a other groove-shaped portion for a sheet cutter of claim 3, wherein.

The invention according to claim 5 is the sheet cutting according to claim 1 , 2, 3 or 4 , wherein the base end side unit forming member and the upper and lower unit forming members are integrally formed of resin. It is a tool.

According to a sixth aspect of the present invention, the upper unit forming member and the lower unit forming member are configured so that the pointed portion can contact the sheet at an angle inclined with respect to an angle orthogonal to the traveling direction of the sheet. , And the sheet cutting tool according to claim 1, which is supported by the base end side unit forming member.

According to a seventh aspect of the present invention, the support body includes a handle portion that can be gripped and operated by a user, and a unit support portion disposed on the front side of the handle portion. The sheet cutting tool according to claim 3 , wherein the support portion includes the upper support portion, the lower support portion, and the connecting portion .

As described above, according to the present invention, it is possible to provide a sheet cutting tool configured such that it is difficult for the user's hand to reach the tip of the blade when replacing the blade.

The perspective view which shows one Embodiment of this invention. The front view in the same embodiment. The rear view in the same embodiment. The right view in the same embodiment. The left side view in the embodiment. The top view in the embodiment. The bottom view in the embodiment. XX sectional view taken on the line in FIG. The YY sectional view taken on the line in FIG. The exploded perspective view in the embodiment. The perspective view which shows the blade unit of the same embodiment. The front view which shows the blade unit of the same embodiment. The rear view which shows the blade unit of the embodiment. The left side surface which shows the blade unit of the embodiment. The bottom view which shows the blade unit of the same embodiment.

An embodiment of the present invention will be described below with reference to FIGS.

The sheet cutting tool A is capable of cutting various sheets f2. As shown as an example in FIG. 1, the sheet cutting tool A can be used to open an envelope F (for example, "Letter Pack (registered trademark)" of Japan Post Co., Ltd.). ing. That is, the sheet cutting tool A can cut a covering piece (hereinafter, may be simply referred to as “sheet f2”) that is a sheet f2 extending from an edge of the envelope body f1 that can store an article (not shown). Is configured. The cover piece, which is the sheet f2, has its free end side attached in the vicinity of the opening of the envelope body f1, and is provided so as to cover the opening of the envelope body f1 in the attached state. The covering piece as the sheet f2 is cut by the blade 1 of the sheet cutting tool A, and after being cut, one sheet portion f21 having a cutting edge e1 and the other sheet portion f22 having a cutting edge e2. Are formed.

<Sheet cutting tool A>
The sheet cutting tool A mainly includes a blade unit C having a blade 1 for cutting the sheet f2, and a support body D capable of detachably supporting the blade unit C. The blade unit C of the sheet cutting tool A is configured to be replaceable with another blade unit having the same shape for replacement when the blade 1 is deteriorated due to repeated use.

<Blade unit C>
The blade unit C includes a blade 1 formed in a flat plate shape and a unit member 2 that supports the blade 1. The unit member 2 includes a unit forming member 21, which is one unit forming member disposed on one end side of the sharp end portion 11 that is a sharp portion formed at the tip of the blade 1, that is, on the upper side in a side view, and the blade 1. The other unit forming member 22 which is the other unit forming member disposed on the other end side of the pointed portion 11, that is, the lower side in side view, and the base end side of the blade 1, that is, the base end side disposed on the rear side in side view. The unit forming member 23 is provided.

The blade 1 is made of metal such as by press working, and can cut the sheet f2 into one sheet portion f21 and the other sheet portion f22 by engaging the tip portion 11 with the sheet f2. Is. In this embodiment, the blade 1 has a tip 11 extending in the vertical direction, and the tip 11 is formed in a substantially linear shape.

The blade 1 has an upper unit-forming member 21, a lower unit-forming member 22, and a lower unit-forming member 22, so that the tip portion 11 thereof can come into contact with the sheet f2 at an angle inclined with respect to an angle orthogonal to the sheet surface of the cut portion P. Are supported by the base-side unit forming member 23. That is, the blade 1 does not engage with the sheet f2 in a posture orthogonal to the sheet f2 to be cut, but rather in a posture inclined relative to the posture orthogonal to the sheet f2 to be cut. It is arranged so as to be engaged with. That is, the blade 1 is arranged so as to be inclined with respect to the horizontal when viewed from the front (FIG. 2 ).

The blade 1 is provided on the upper unit forming member 21 and the base end side so that the tip portion 11 of the blade 1 can contact the sheet f2 at an angle more inclined than the angle orthogonal to the traveling direction of the sheet f2 to be cut. It is supported by the unit forming member 23. That is, the blade 1 is arranged such that the tip portion 11 is tilted backward in a side view.

Next, the unit member 2 supporting the blade 1 will be described in detail.

The unit member 2 is integrally formed of synthetic resin, and has a shape that surrounds the upper end portion, the rear end portion, and the lower end portion of the blade 1 while exposing the tip 11 toward the front side in a side view. ing. The unit member 2 is mainly composed of an upper unit forming member 21, a lower unit forming member 22 and a base end side unit forming member 23, which are integrally formed of resin.

The upper unit forming member 21 supports the upper end of the blade 1. The upper unit forming member 21 is set to a shape that can be engaged with the upper support portion 41 of the support body D, that is, a shape that can be internally fitted. The front end of the upper unit forming member 21 is located on the front side of the tip 11 of the blade 1 in a side view. The upper unit forming member 21 is provided with a flange portion 21a that engages with a step portion a11 formed in the upper support portion 41 of the support body D.

A retaining mechanism is provided between the blade unit C and the support body D to prevent the blade unit C from slipping out of the support body D in a normal use mode. In this embodiment, the retaining mechanism of the sheet cutting tool A is mainly composed of a convex portion t1 provided in the blade unit C and a concave portion t2 provided in the support body D. The engagement of the convex portion t1 and the concave portion t2 suppresses the detachment of the blade unit C from the support body D. The side surface of the upper unit forming member 21 is provided with a convex portion t1 capable of moderatingly engaging with a concave portion t2 formed on the inner side surface of the upper support portion 41.

An upper portion of the lower unit forming member 22 is continuous with the base unit forming member 23 in a side view. The front end of the lower unit forming member 22 is located on the front side of the tip 11 in a side view. A sheet insertion space sp is formed between the lower unit forming member 22 and the upper unit forming member 21.

The base end side unit forming member 23 supports the rear end portion of the blade 1. In the side view, the base end side unit forming member 23 has an upper portion continuous with the upper unit forming member 21 and a lower portion continuous with the lower unit forming member 22. The proximal-side unit forming member 23 is arranged in a posture inclined with respect to the lower unit forming member 22 (a posture inclined to the left side) in a rear view.

In addition, in this embodiment, a sheet for making the base end side unit forming member 23 have a different trajectory between one sheet portion f21 cut by the blade 1 and the other sheet portion f22 cut by the blade 1. A guide means E is provided, which will be described in detail later.

<Support body D>
The support body D capable of detachably holding the blade unit C will be described. In the present specification, the “blade holding element B” is a concept composed of the support body D and the unit member 2.

The support body D includes a handle portion 3 that a user can grip and operate with a finger, a unit support portion 4 arranged on the front side of the handle portion 3, and a seat insertion space formed in the unit support portion 4. and the sheet guiding portion 5 arranged in sp. The handle portion 3 and the unit support portion 4 are integrally formed of synthetic resin. The seat guiding portion 5 is configured separately from the unit supporting portion 4, and is attached to the unit supporting portion 4.

The handle portion 3 has a rod shape extending in the front-rear direction. The handle portion 3 is set to a size that can be grasped by the operator's fingers. The operator moves the entire sheet cutting tool A to the front side while holding the handle portion 3 with the fingers so as to wrap the handle portion 3 in the extending direction of the handle portion 3 (see arrow Z in FIGS. 5 and 6). By doing so, it is possible to cut the sheet f2 which is a cut symmetrical object fixedly arranged at a specific position.

The unit support portion 4 includes an upper support portion 41 capable of supporting the upper unit forming member 21, a lower support portion 42 capable of supporting the lower unit forming member 22, and a rear portion of the blade 1 disposed above the upper unit. The forming member 21 and a connecting portion 43 that connects the lower unit forming member 22 are provided.

The upper support portion 41 is capable of passing the lower unit forming member 22, the base unit forming member 23, and the blade 1 of the blade unit C, and holding the upper unit forming member 21 in communication in the up-down direction so as to support the upper unit forming member 21. The hole a1 is provided. The upper unit forming member 21 is fitted in the holding hole a1. The holding hole a1 is formed with a recess t2 with which the projection t1 provided on the blade unit C can be engaged.

The lower support portion 42 includes a holding hole a2 that can be fitted into the lower unit forming member 22 of the blade unit C. A communication hole a3 having a smaller diameter than the holding hole a2 is provided below the holding hole a2. The communication hole a3 is preferably used when the blade unit C is taken out from the support body D. That is, by inserting an arbitrary pressing member or the like into the communication hole a3 and pressing the lower unit forming member 22 of the blade unit C from the lower side to the upper side, the blade unit C is separated from the support body D. Is ready for you.

The sheet insertion space sp is a space into which the sheet f2 to be cut can be inserted, and is formed between the upper support portion 41 and the lower support portion 42. The sheet f2 to be inserted into the sheet insertion space sp is set such that one side of the cutting portion P faces upward and the other side thereof faces downward.

The connecting portion 43 is arranged on the rear side of the base-side unit forming member 23 in the blade unit C, and is formed between the rear portion of the upper supporting portion 41 and the rear portion of the lower supporting portion 42. A sheet guiding means H is provided at the connecting portion 43, which will be described in detail later.

The sheet guiding portion 5 is provided in the sheet insertion space sp for guiding the sheet f2 to be cut to a specific vertical position. In this embodiment, the sheet f2 is guided upward in a side view. It has an inclined surface. The sheet guiding portion 5 is separate from the unit supporting portion 4, and is mainly composed of a plate-shaped portion made of resin. The front end portion of the sheet guiding portion 5 is connected to the front end portion of the lower support portion 42 of the support body D. The seat guiding portion 5 has a curved inclined surface that forms a mountain shape when viewed from the front, and cooperates with the left and right lower end portions 41a that project downward in the upper support portion 41, and moves the seat f2 upward. The sheet f2 is configured to be curved to a certain degree so as to be convex toward the sheet f2 so that a constant tension can be given to the sheet f2.

<Sheet guide means E, H>
The sheet guiding means E and H are for making the orbit of one sheet portion f21 cut by the blade 1 and the orbit of the other sheet portion f22 cut by the blade 1 different from the tip 11 of the blade 1. Is also provided in the rear position. The sheet guiding means E and H can guide one sheet portion f21 in the upward direction and can guide the other sheet portion f22 in the downward direction. In other words, the sheet guiding means E, H, when viewed from the rear (see FIG. 3 in particular), are located at the height position of the cutting edge e1 of one sheet portion f21 and the height of the cutting edge e2 of the other sheet portion f22. It is for changing the position.

In this embodiment, the sheet guiding means E, H are provided on the blade holding element B. That is, the first sheet guiding means E is provided on the base end side unit forming member 23 of the unit member 2 which is the blade holding element B. The second sheet guiding means H is provided at the connecting portion 43 of the support body D which is the blade holding element B.

The sheet guiding means E provided on the base end side unit forming member 23 of the blade unit C is formed at the left side portion in the front view (right side portion in the rear view) and guides the cut edge e1 of one sheet portion f21. One groove-shaped portion m1 for performing the cutting, and the other groove-shaped portion m2 for guiding the cut edge e2 of the other sheet portion f22 that is formed in the right side portion in the front view (left side portion in the rear view). Is equipped with.

The sheet guiding means H provided in the connecting portion 43 of the unit support portion 4 in the support body D is formed at the left side portion in the front view (right side portion in the rear view) and the cut edge e1 of one sheet portion f21. One groove-shaped portion v1 for guiding the sheet and the other groove-shaped portion formed on the right side portion in the front view (left side portion in the rear view) for guiding the cut edge e2 of the other sheet portion f22. v2 and.

The sheet guiding means E, H cut one groove portion m1, v1 capable of guiding the cut edge e1 of one sheet portion f21 and the cut edge e2 of the other sheet portion f22 into one sheet portion f21. It is mainly configured by the other groove-shaped portions m2, v2 that can be guided to a height position different from the end edge e1 (that is, a position lower than the cut edge e1 of the one sheet portion f21).

One of the groove-shaped portions m1 and v1 forming the sheet guiding means E and H is formed so that a continuous groove-shaped portion can be formed. The other groove-shaped portions m2, v2 forming the sheet guiding means E, H are formed so that a continuous groove-shaped portion can be formed.

The operation of guiding the sheet f2 by the sheet guiding means E and H is as follows.

When the sheet f2 to be cut is inserted into the sheet insertion space sp, the sheet f2 comes into contact with the tip portion 11 of the blade 1 that is in an oblique posture with respect to the sheet f2 and is cut. At this time, after the tip portion 11 of the blade 1, the sheet f2 is cut by the tip portion 11 to form one sheet portion f21 and the other sheet portion f22.

The cut edge e1 of the one sheet portion f21 and the vicinity thereof are more rear view than the cut edge e2 of the other sheet portion f22 by the groove portions m1 and v1 of the sheet drafting means E and H. You will be guided to the top.

The cut edge e2 of the other sheet portion f22 and the vicinity thereof are more rear view than the cut edge e1 of the one sheet portion f21 due to the other groove-shaped portions m2 and v2 forming the sheet drafting means E and H. You will be guided to the bottom.

As described above, the sheet cutting tool A according to the present embodiment includes the blade unit C including the blade 1 for cutting the sheet f2, and the support body D capable of detachably supporting the blade unit C. Be prepared. The blade unit C includes a blade 1, an upper unit forming member 21 which is one unit forming member arranged on one end side of the tip 11 of the blade 1 and the other end side of the tip 11 of the blade 1. The other unit forming member disposed below is the unit forming member 22. The front end portions of the upper and lower unit forming members 21 and 22 are located on the front side of the tip portion 11 of the blade 1. Therefore, it is possible to provide the sheet cutting tool A in which it is difficult for the user's hand to reach the tip 11 of the blade 1 when replacing the blade 1. That is, in the blade unit C having the blade 1, the upper and lower unit forming members 21 and 22 are arranged so that the user's fingers are unlikely to reach the tip 11 of the blade 1. In other words, since the upper and lower unit forming members 21 and 22 are located on the front side of the blade 1 in a side view, it is preferable that the upper and lower unit forming members 21 and 22 access the tip portion 11 of the blade 1. It is something that can get in the way. For this reason, when the blade 1 is replaced, it is possible to preferably prevent the user's fingers from being inadvertently damaged.

The blade unit C includes upper and lower unit forming members 21 and 22, and a base end side unit forming member 23, which are integrally formed of resin. Therefore, the blade 1 can be favorably supported in a unitized form.

The base end side unit forming member 23 in the blade unit C has a sheet guide means E for making the trajectory of one sheet portion f21 cut by the blade 1 different from the trajectory of the other sheet portion f22 cut by the blade 1. It is provided. Therefore, it is possible to provide the sheet cutting tool A capable of suitably cutting the sheet f2.

That is, the sheet cutting tool A can be generated by rubbing the cut edges e1 and e2 of the sheet portions f21 and f22 by making the orbits of the one sheet portion f21 and the other sheet portion f22 different from each other. The resistance to the blade 1 can be suppressed. Therefore, the sheet f2 can be suitably cut with a relatively light operation.

The sheet guiding means E is provided on the base end side unit forming member 23 and is provided on the base end side unit forming member 23 and the other groove portion m1 for guiding the cut edge e1 of the one sheet portion f21. The other groove-shaped portion m2 for guiding the cut edge e2 of the sheet portion f22. Therefore, the orbits of the one sheet portion f21 and the other sheet portion f22 can be made different by utilizing the groove portions m1 and m2.

The blade unit C includes a base end side unit forming member 23 that supports the base end side of the blade 1. Then, the tip portion 11 of the blade 1 is set to be substantially linear. The upper and lower unit forming members 21, 22 and the base end side unit forming member 23 so that the pointed portion 11 of the blade 1 can contact the sheet f2 at an angle tilted more than the angle orthogonal to the sheet surface of the cutting point P. Supported by. In other words, the blade 1 is supported by the unit member 2 so as to cut the sheet f2 in an oblique posture. Therefore, the resistance of the sheet f2 to the blade 1 at the time of cutting is suppressed, and the sheet f2 can be preferably cut.

The tip 11 of the blade 1 is set to be substantially linear. Then, the upper and lower unit forming members 21, 22 and the base end side unit forming member so that the pointed portion 11 of the blade 1 may come into contact with the sheet f2 at an angle inclined with respect to the angle orthogonal to the traveling direction of the sheet f2. It is supported by 23. In other words, the blade 1 is provided on the unit member 2 in a state in which the pointed portion 11 of the blade 1 is tilted backward in a side view. Therefore, the resistance of the sheet f2 to the blade 1 at the time of cutting is suppressed, and the sheet f2 can be preferably cut.

The support body D includes a handle portion 3 that can be gripped and operated by a user, and a unit support portion 4 arranged on the front side of the handle portion 3. The unit support portion 4 includes an upper support portion 41 that can support the upper unit forming member 21 and a lower support portion 42 that can support the lower unit forming member 22. Therefore, the blade unit C having the blade 1 can be favorably supported by the unit supporting portion 4. Further, since the support body D is provided with the handle portion 3 which can be gripped and operated by the user, the user can hold and operate it firmly, and the cutting work of the sheet f2 can be carried out lightly. It can be done.

The present invention is not limited to the embodiment described in detail above.

Various shapes of the blade can be adopted, and are not limited to those shown in the above-described embodiment.

The configuration of the blade unit can be variously modified without departing from the spirit of the present invention.

The support body is not limited to the embodiment described above as long as it can detachably support the blade unit. For example, the support body may not have the bar-shaped handle.

The unit member that constitutes the blade unit may not be integrally configured, but may be configured by using a plurality of separate members.

The sheets are not limited to those made of paper. That is, the sheet may be made of any material as long as it can be cut by the blade. For example, the sheet may be made of synthetic resin.

The sheet is not limited to a single sheet (one sheet). That is, the sheet cutting tool may cut a sheet formed by overlapping a plurality of sheets.

The blade may be arranged such that the tip end portion thereof tilts forward when viewed from the side.

It goes without saying that the configurations of the blade unit and the support body D can be variously modified without departing from the spirit of the present invention.

The configuration of the retaining mechanism is not limited to that shown in the above-described embodiment, as long as the blade unit can be prevented from being detached from the support body. For example, the blade unit may be provided with a concave portion, and the convex portion engaging with the concave portion may be provided on the support body.

The sheet guiding unit is not limited to the above-described embodiment, as long as the sheet to be cut can be guided to a specific position. The seat guiding portion does not have to be configured separately from the unit supporting portion, and may be configured integrally with the unit supporting portion.

In the above-described embodiment, the sheet guiding section is capable of guiding the sheet to be cut in the sheet insertion space to the upper side, but is not limited to this. For example, the sheet guiding section may be capable of guiding the sheet to be cut downward in the sheet insertion space. In this case, the tip of the blade may be configured so as to take a forwardly inclined posture in a side view.

The sheet guide means can have various configurations, and is not limited to the one shown in the above-described embodiment. The sheet guide means may be provided at a position behind the tip of the blade. For example, by providing a protrusion on the component portion of the blade behind the pointed portion, the trajectory of one sheet portion cut by the blade and the trajectory of the other sheet portion cut by the blade may be different. Good.

In addition, the specific configuration of each unit is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

A... Sheet cutting tool B... Blade holding element C... Blade unit D... Support body 1... Blade 11... Point 2... Unit member 3... Handle 4... Unit support 5... Sheet guide E... Sheet guide means H ... Sheet guide means F ... Envelope f2 ... Sheet f21 ... One sheet portion f22 ... The other sheet portion

Claims (7)

A sheet cutting tool comprising a blade unit having a flat blade for cutting a sheet, and a support body capable of detachably supporting the blade unit,
Said blade unit, said cutter, and the unit formed member on which supports the upper end side of the tip portion of the blade, and the unit-forming member of the lower supporting the lower end of the tip portion of said blade, said blade A base end side unit forming member for supporting the base end side is provided, and the front end portions of these upper and lower unit forming members are located on the front side of the pointed end portion ,
The pointed portion is set to be substantially linear, and is capable of contacting the sheet at an angle inclined from an angle orthogonal to the sheet surface of the cut portion,
A sheet cutting tool in which the base end side unit forming member is arranged in a posture inclined with respect to the lower unit forming member in a rear view . The base unit forming member is provided with a first sheet guide means for making the orbit of one sheet portion cut by the blade different from the orbit of the other sheet portion cut by the blade. And
The first sheet guiding means has one groove-shaped portion for guiding the cutting edge of the one sheet portion, and the other groove-shaped portion for guiding the cutting edge of the other sheet portion. the sheet cutting device according to claim 1, wherein those having a. The support body is arranged on an upper support portion capable of supporting the upper unit forming member, a lower support portion capable of supporting the lower unit forming member, and a rear side of the base end side unit forming member. A connecting portion connecting the upper supporting portion and the lower supporting portion,
3. The sheet cutting tool according to claim 1 , wherein the connecting portion is arranged in a posture inclined with respect to the lower support portion so as to be along the base end side unit forming member in a rear view . The connecting portion is provided with a second sheet guide means for differentiating the trajectory of one sheet portion cut by the blade and the trajectory of the other sheet portion cut by the blade,
The second sheet guiding means has one groove-shaped portion for guiding the cutting edge of the one sheet portion, and the other groove-shaped portion for guiding the cutting edge of the other sheet portion. the sheet cutting device according to claim 3, wherein those having a. The sheet cutting tool according to claim 1 , 2, 3 or 4, wherein the base end side unit forming member and the upper and lower unit forming members are integrally formed of resin. The upper unit forming member, the lower unit forming member, and the base end unit forming so that the pointed portion can contact the sheet at an angle inclined with respect to an angle orthogonal to the traveling direction of the sheet. The sheet cutting tool according to claim 1, which is supported by a member. The support body is provided with a handle portion that a user can grip and operate, and a unit support portion arranged on the front side of the handle portion,
The sheet cutting tool according to claim 3, wherein the unit support portion includes the upper support portion, the lower support portion, and the connecting portion .

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