JP7429018B1

JP7429018B1 - Cut restraint device

Info

Publication number: JP7429018B1
Application number: JP2023088270A
Authority: JP
Inventors: 一隆小西
Original assignee: 株式会社文創
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2024-02-07
Anticipated expiration: 2043-05-29

Abstract

【課題】シートを刃物で切断する際の切創を抑制することができる切創抑制器具を提供することを目的とする。【解決手段】切創抑制器具１００は、前後方向に縦長な板状の底板部１０と、底板部１０の手前側の外縁及び外縁に接続し、底板部１０の上方において、底板部１０の手前側及び前側をカバーするカバー部２０とを有し、底板部１０の先端部には丸穴である第１連通穴１０ａが形成されるとともに、底板部１０の後端部には長穴である第２連通穴１０ｂが形成されている。【選択図】図１An object of the present invention is to provide a cut prevention device that can suppress cuts when cutting a sheet with a knife. A cut suppression device 100 includes a plate-shaped bottom plate 10 elongated in the front-rear direction, and is connected to an outer edge and an outer edge on the front side of the bottom plate 10, and is placed above the bottom plate 10 in front of the bottom plate 10. It has a cover part 20 that covers the sides and the front side, and a first communication hole 10a which is a round hole is formed at the tip of the bottom plate part 10, and a long hole is formed at the rear end of the bottom plate part 10. A second communication hole 10b is formed. [Selection diagram] Figure 1

Description

本発明は、切創抑制器具に関する。 FIELD OF THE INVENTION The present invention relates to a cut suppression device.

従来から、シートを刃物で切断する際の切創を抑制するため、特許文献１に示されるように、薄板状スケール本体上面にその全長にわたってフィン状の突起が形成されたナイフ案内用定規が有る。 Conventionally, in order to prevent cuts when cutting a sheet with a knife, there has been a knife guide ruler in which fin-shaped protrusions are formed on the top surface of a thin scale body over its entire length, as shown in Patent Document 1. .

実開昭６０－１４７３７８号公報Utility Model Publication No. 60-147378

このようなナイフ案内用定規は、定規に手を添えた場合に、定規の前方が開いているために、定規の前方から刃物が侵入して、ユーザの手に切創ができてしまうおそれがあった。 Since the front of the ruler is open when the user places their hand on the ruler, there is a risk that the knife may enter from the front of the ruler and cause a cut on the user's hand. there were.

本発明は、シートを刃物で切断する際の切創を抑制することができる切創抑制器具を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a cut prevention device that can suppress cuts when cutting a sheet with a knife.

上記目的を達成するためになされた、請求項１に記載の発明である切創抑制器具は、
定規でシートを切断する際に用いられる切創抑制器具であって、
前後方向に縦長な板状の底板部（１０）と、
前記底板部の前記前後方向と直行する幅方向の一方側である手前側の外縁及び前記底板部の前側の外縁に接続し、前記底板部の上方において、前記底板部の手前側及び前側をカバーするカバー部（２０）と、を有し、
前記底板部の先端部に人差し指が入る第１連通穴（１０ａ）が形成されるとともに、前記底板部の後端部には親指が入る第２連通穴（１０ｂ）が形成され、
前記第１連通穴及び前記第２連通穴ごしに、前記人差し指及び前記親指で前記シート上に載置された前記定規を押さえつけ、この状態で、刃物を前記定規の外縁に添わせて、前記シートを切断するように構成され、この際に前記カバー部で前記人差し指及び前記親指が保護されるように構成されていることを特徴とする。
A cut suppression device according to claim 1, which is made to achieve the above object, has the following features:
A cut prevention device used when cutting a sheet with a ruler,
a plate-shaped bottom plate portion (10) that is vertically elongated in the front-rear direction;
Connected to a front outer edge of the bottom plate part that is one side in a width direction perpendicular to the front-back direction and a front outer edge of the bottom plate part, and covering the near side and front side of the bottom plate part above the bottom plate part. a cover part (20),
A first communication hole (10a) into which the index finger is inserted is formed at the tip of the bottom plate, and a second communication hole (10b) into which the thumb is inserted is formed at the rear end of the bottom plate ;
Press down the ruler placed on the sheet with the index finger and the thumb through the first communication hole and the second communication hole, and in this state, place the cutler along the outer edge of the ruler, It is characterized in that it is configured to cut a sheet, and in this case, it is configured so that the index finger and the thumb are protected by the cover portion .

これによれば、シートの上に定規を載置し、定規の上に、切創抑制器具を載置し、第１連通穴及び第２連通穴ごしに、作業者の指で定規を押さえつけ、この状態で、刃物を定規の外縁に添わせて、シートを切断することができる。このため、刃物側である手前側だけでなく、前側も切創抑制器具のカバー部で保護される。よって、シートを刃物で切断する際の切創を抑制することができる切創抑制器具を提供することができる。 According to this, a ruler is placed on a sheet, a cut prevention device is placed on the ruler, and the operator presses the ruler with his or her fingers through the first communication hole and the second communication hole. In this state, the sheet can be cut by aligning the blade with the outer edge of the ruler. Therefore, not only the front side, which is the blade side, but also the front side are protected by the cover portion of the cut prevention device. Therefore, it is possible to provide a cut prevention device that can suppress cuts when cutting a sheet with a knife.

請求項２に記載の発明は、請求項１に記載の発明において、
前記カバー部は、
板状であり、その下端が前記底板部の手前側の外縁に接続している手前側カバー部（２１）と、
後方が開口した曲面で構成されたドーム状であり、その下端が前記底板部の前端部の外縁に接続するとともに前記手前側カバー部の前端部に接続している前側カバー部（２２）と、を備えたことを特徴とする。 The invention according to claim 2 is the invention according to claim 1,
The cover part is
a front side cover part (21) which is plate-shaped and whose lower end is connected to the front side outer edge of the bottom plate part;
a front cover part (22) that has a dome shape with a curved surface that is open at the rear, and whose lower end is connected to the outer edge of the front end of the bottom plate part and to the front end of the front cover part; It is characterized by having the following.

これによれば、作業者の手をより確実に保護することができ、より確実にシートを刃物で切断する際の切創を抑制することができる。また、前側カバー部は、曲面で構成されたドーム状であるので、前側カバー部が他の物体に引っかかってしまうことが抑制される。 According to this, it is possible to protect the operator's hands more reliably, and it is possible to more reliably suppress cuts when cutting the sheet with a knife. Furthermore, since the front cover part has a dome shape with a curved surface, the front cover part is prevented from getting caught on other objects.

請求項３に記載の発明は、請求項２に記載の発明おいて、
前記第１連通穴は、丸穴であり、
前記第２連通穴は、前後方向に縦長な長穴であることを特徴とする。 The invention according to claim 3 is the invention according to claim 2,
The first communication hole is a round hole,
The second communication hole is characterized in that it is a long hole that is vertically elongated in the front-rear direction.

これによれば、第１連通穴に左手の人差し指を入れつつ、第２連通穴に左手の親指を入れて、第１連通穴及び第２連通穴ごしに、人差し指及び親指で定規を押さえつけることができる。丸穴である第１連通穴ごしに、左手の人差し指で定規を押さえることにより、定規に対する切創抑制器具の位置を所望の位置に固定させることができる。また、第２連通穴は、長穴であるので、作業者によって手の大きさが異なったとしても、左手の親指を第２連通穴に入れて、第２連通穴ごしに、左手の親指で定規を押さえつけることができる。 According to this, while inserting the index finger of the left hand into the first communicating hole, inserting the thumb of the left hand into the second communicating hole, and pressing the ruler with the index finger and thumb through the first communicating hole and the second communicating hole. Can be done. By pressing the ruler with the index finger of the left hand through the first communicating hole, which is a round hole, the position of the cut suppression device relative to the ruler can be fixed at a desired position. In addition, since the second communicating hole is a long hole, even if the size of the hand differs depending on the worker, the thumb of the left hand can be inserted into the second communicating hole and the thumb of the left hand can be passed through the second communicating hole. You can press the ruler with

請求項４に記載の発明は、請求項３に記載の発明において、前記前側カバー部は、前記第１連通穴を覆っていることを特徴とする。 The invention according to claim 4 is characterized in that, in the invention according to claim 3, the front cover portion covers the first communication hole.

これによれば、前側カバー部によって、作業者の左手の人差し指を確実に保護することができる。 According to this, the front cover portion can reliably protect the index finger of the left hand of the worker.

請求項５に記載の発明は、請求項２に記載の発明において、前記底板部と前記手前側カバー部とのなす角θは、４５°～７５°であることを特徴とする。 The invention according to claim 5 is characterized in that, in the invention according to claim 2, an angle θ between the bottom plate portion and the front cover portion is 45° to 75°.

上記角θが大きい場合には、手前側カバー部によって十分に作業者の左手が保護されず、上記角θが小さい場合には、手前側カバー部が作業者の左手に当たってしまう。そこで、本発明の発明者は、上記角θを４５°～７５°に設定することにより、手前側カバー部が作業者の左手に当たること無く、好適に手前側カバー部によって十分に作業者の左手が保護されることを見出した。 If the angle θ is large, the worker's left hand will not be sufficiently protected by the front cover, and if the angle θ is small, the front cover will hit the worker's left hand. Therefore, the inventor of the present invention set the angle θ to 45° to 75°, so that the front cover portion does not hit the worker's left hand, and the front cover portion sufficiently covers the worker's left hand. was found to be protected.

請求項６に記載の発明は、請求項２に記載の発明において、前記手前側カバー部の上端部の断面形状は、上方に位置するに従ってより奥側に位置する円弧形状に湾曲していることを特徴とする。 The invention according to claim 6 is the invention according to claim 2, wherein the cross-sectional shape of the upper end of the front cover part is curved into an arc shape that is located further back as it is located upward. It is characterized by

これによれば、手前側カバー部によって、作業者の左手を好適に保護することができる。 According to this, the operator's left hand can be suitably protected by the front side cover portion.

請求項７に記載の発明は、請求項２に記載の発明において、前記手前側カバー部の上部の前後方向の中央部には、奥側に向かって突出する突出部（２１ａ）が形成されていることを特徴とする。 The invention according to claim 7 is the invention according to claim 2, in which a protruding part (21a) protruding toward the back side is formed in the center part of the upper part of the front side cover part in the front-rear direction. It is characterized by the presence of

これによれば、作業者の左手を好適に保護することができる。 According to this, the left hand of the worker can be suitably protected.

請求項８に記載の発明は、請求項７に記載の発明において、前記手前側カバー部の上部の前記突出部の前側には、前記カバー部が前記人差し指に当たることを抑制するための第１凹陥部（２１ｂ）が手前側に向かって凹陥形成されていることを特徴とする。
The invention according to claim 8 is the invention according to claim 7, in which a first recess is provided on the front side of the protrusion at the upper part of the front side cover part for suppressing the cover part from coming into contact with the index finger. It is characterized in that the portion (21b) is recessed toward the front side .

これによれば、第１凹陥部によって、手前側カバー部が作業者の左手の人差し指に当たることが抑制される。 According to this, the first concave portion prevents the front cover portion from coming into contact with the index finger of the left hand of the operator.

請求項９に記載の発明は、請求項７に記載の発明において、前記手前側カバー部の上部の前記突出部の後側には、前記カバー部が前記親指に当たることを抑制するための第２凹陥部（２１ｃ）が手前側に向かって凹陥形成されていることを特徴とする。
The invention according to claim 9 is the invention according to claim 7, in which a second part is provided on the rear side of the protrusion at the upper part of the front side cover part for suppressing the cover part from coming into contact with the thumb. It is characterized in that the recessed portion (21c) is recessed toward the front side .

これによれば、第２凹陥部によって、手前側カバー部が作業者の左手の親指に当たることが抑制される。 According to this, the second recessed portion prevents the front side cover portion from coming into contact with the thumb of the left hand of the operator.

請求項１０に記載の発明は、請求項２に記載の発明において、前記前側カバー部の奥側の下部には、前記人差し指に当たることを抑制するための第３凹陥部（２２ａ）が前側に向かって凹陥形成されていることを特徴とする。
The invention according to claim 10 is the invention according to claim 2, in which a third recessed part (22a) for suppressing the index finger from hitting the index finger is provided at a lower part on the back side of the front side cover part toward the front side. It is characterized by a concave formation.

これによれば、前側カバー部が、作業者の左手の人差し指に当たることが抑制される。 According to this, the front cover part is prevented from hitting the index finger of the worker's left hand.

請求項１１に記載の発明は、請求項１０に記載の発明において、前記第３凹陥部は、前記前側カバー部の下方に位置するに従って、より前側に凹陥していることを特徴とする。 The invention according to claim 11 is characterized in that, in the invention according to claim 10, the third recessed portion is recessed further toward the front as it is located below the front cover portion.

これによれば、前側カバー部が、作業者の左手の人差し指に当たることがより一層抑制される。 According to this, the front cover part is further prevented from hitting the index finger of the worker's left hand.

請求項１２に記載の発明は、請求項１に記載の発明において、前記底板部の前端部の手前側及び奥側の角部は、円弧形状であることを特徴とする。 The invention according to claim 12 is characterized in that, in the invention according to claim 1, the front and rear corners of the front end portion of the bottom plate portion have an arc shape.

これによれば、切創抑制器具の前端部の手前側及び奥側の角部が他の物体に引っかかってしまうことが抑制される。 According to this, it is suppressed that the front and back corners of the front end of the cut suppression instrument get caught on other objects.

請求項１３に記載の発明は、請求項１に記載の発明において、前記底板部の後端部の奥側の角部は、円弧形状であることを特徴とする。 The invention according to claim 13 is characterized in that, in the invention according to claim 1, the rear corner of the bottom plate portion has an arc shape.

これによれば、底板部の後端部の奥側の角部が他の物体に引っかかってしまうことが抑制される。 According to this, it is suppressed that the rear corner of the bottom plate portion gets caught on another object.

なお、この欄及び特許請求の範囲で記載した各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。 Note that the reference numerals in parentheses of each means described in this column and the claims are examples showing correspondence with specific means described in the embodiments described later.

本発明の一実施形態の切創抑制器具の平面図である。FIG. 1 is a plan view of a cut suppression device according to an embodiment of the present invention. 本発明の一実施形態の切創抑制器具の底面図である。FIG. 2 is a bottom view of a cut suppression device according to an embodiment of the present invention. 本発明の一実施形態の切創抑制器具の正面図である。FIG. 1 is a front view of a cut suppression device according to an embodiment of the present invention. 本発明の一実施形態の切創抑制器具の背面図である。FIG. 2 is a rear view of a cut suppression device according to an embodiment of the present invention. 本発明の一実施形態の切創抑制器具の右側側面図である。FIG. 2 is a right side view of a cut suppression device according to an embodiment of the present invention. 本発明の一実施形態の切創抑制器具の左側側面図である。FIG. 1 is a left side view of a cut suppression device according to an embodiment of the present invention. 切創抑制器具の使用状態を示す説明図である。FIG. 3 is an explanatory diagram showing how the cut prevention device is used.

（切創抑制器具の構造）
以下に、図１～図６を用いて、本発明の一実施形態である切創抑制器具１００について説明する。なお、図１において、紙面左右方向を切創抑制器具１００の前後方向、紙面上下方向を切創抑制器具１００の前後方向、紙面右側を切創抑制器具１００の前側、紙面左側を切創抑制器具１００の後側、紙面上側を切創抑制器具１００の奥側、紙面下側を切創抑制器具１００の手前側とする。また、図５において、紙面左右方向を切創抑制器具１００の幅方向、紙面上下方向を切創抑制器具１００の上下方向、紙面右側を切創抑制器具１００の奥側、紙面左側を切創抑制器具１００の手前側、紙面上側を切創抑制器具１００の上側、紙面下側を切創抑制器具１００の下側とする。 (Structure of cut suppression device)
A cut suppression device 100, which is an embodiment of the present invention, will be described below with reference to FIGS. 1 to 6. In addition, in FIG. 1, the left-right direction in the paper is the front-back direction of the cut suppression device 100, the vertical direction in the paper is the front-back direction of the cut suppression device 100, the right side in the paper is the front side of the cut suppression device 100, and the left side in the paper is the cut suppression device 100. 100, the upper side of the paper is the back side of the cut suppression device 100, and the bottom side of the paper is the front side of the cut suppression device 100. In addition, in FIG. 5, the horizontal direction in the paper is the width direction of the cut suppression device 100, the vertical direction in the paper is the vertical direction of the cut suppression device 100, the right side in the paper is the back side of the cut suppression device 100, and the left side in the paper is cut suppression. The front side of the device 100, the upper side of the paper is the upper side of the cut prevention device 100, and the lower side of the paper is the lower side of the cut prevention device 100.

切創抑制器具１００は、壁紙や床材等のシート９００を、カッターナイフ等の刃物４００（図７示）で切断する際に、刃物４００で手を切ってしまうことを抑制するためのものである。 The cut prevention device 100 is intended to prevent the cutter 400 from cutting one's hand when cutting a sheet 900 such as wallpaper or flooring material with a cutter 400 (shown in FIG. 7) such as a cutter knife. be.

切創抑制器具１００は、底板部１０とカバー部２０とから構成されている。底板部１０は、前後方向に縦長な略長方形板状である。底板部１０の四隅は、角が切り落とされ、円弧形状となっている。これにより、切創抑制器具１００の使用時に、底板部１０の四隅が他の物体に引っかかり難くなっている。 The cut prevention device 100 is composed of a bottom plate section 10 and a cover section 20. The bottom plate portion 10 has a substantially rectangular plate shape that is vertically elongated in the front-rear direction. The four corners of the bottom plate portion 10 are cut off to form an arc shape. This makes it difficult for the four corners of the bottom plate portion 10 to get caught on other objects when the cut suppression device 100 is used.

図１に示すように、底板部１０の前端部には、丸穴の第１連通穴１０ａが形成されている。底板部１０の後端部には、前後方向に縦長な長穴の第２連通穴１０ｂが形成されている。第１連通穴１０ａ及び第２連通穴１０ｂは、底板部１０の幅方向の中央部に形成され、幅方向に関して同じ位置に形成されている。 As shown in FIG. 1, a first circular communication hole 10a is formed in the front end of the bottom plate portion 10. As shown in FIG. A second communication hole 10b is formed in the rear end portion of the bottom plate portion 10, and is a long hole elongated in the front-rear direction. The first communication hole 10a and the second communication hole 10b are formed in the center of the bottom plate portion 10 in the width direction, and are formed at the same position in the width direction.

カバー部２０は、底板部１０の手前側の外縁及び前側の外縁に接続し、底板部１０の上方において、底板部１０の手前側及び前側をカバーするものである。カバー部２０は、手前側カバー部２１と、前側カバー部２２とから構成されている。手前側カバー部２１と前側カバー部２２とは、連続的に形成され、一体となっている。手前側カバー部２１と前側カバー部２２との接続部には、角が無く、滑らかな曲面となっている。 The cover section 20 is connected to the outer edge on the near side and the outer edge on the front side of the bottom plate section 10, and covers the near side and the front side of the bottom plate section 10 above the bottom plate section 10. The cover section 20 includes a front cover section 21 and a front cover section 22. The front cover part 21 and the front cover part 22 are continuously formed and integrated. The connecting portion between the front cover portion 21 and the front cover portion 22 has no corners and has a smooth curved surface.

手前側カバー部２１は、板状であり、その下端は、底板部１０の手前側の外縁に接続している。図６に示すように、底板部１０と手前側カバー部２１とのなす角θは、９０°以下であり、４５°～７５°であることが好ましく、本実施形態では、６０°である。手前側カバー部２１の上端部の断面形状は、上方に位置するに従ってより奥側に位置する円弧形状に湾曲している。手前側カバー部２１は、このような形状によって、底板部１０の上方において、底板部１０の手前側をカバーしている。 The front cover part 21 is plate-shaped, and its lower end is connected to the outer edge of the bottom plate part 10 on the front side. As shown in FIG. 6, the angle θ between the bottom plate portion 10 and the front cover portion 21 is 90° or less, preferably 45° to 75°, and in this embodiment, it is 60°. The cross-sectional shape of the upper end of the front cover part 21 is curved into an arc shape that is located further back as it is located upward. With such a shape, the front side cover part 21 covers the front side of the bottom plate part 10 above the bottom plate part 10.

図１に示すように、手前側カバー部２１の上部の前後方向の中央部には、奥側に向かって略円弧形状に突出する突出部２１ａが形成されている。手前側カバー部２１の上部の突出部２１ａの前側には、手前側に向かって略円弧形状に凹陥している第１凹陥部２１ｂが形成されている。第１凹陥部２１ｂが形成されている前後方向の位置は、第１連通穴１０ａの後方である。手前側カバー部２１の上部の突出部２１ａの後側には、手前側に向かって凹陥している第２凹陥部２１ｃが形成されている。第２凹陥部２１ｃが形成されている。第２凹陥部２１ｃが形成されている手前側カバー部２１の外縁は、後方に位置するに従って、手前側に位置している。第２凹陥部２１ｃの前後方向の位置は、第２連通穴１０ｂが形成されている位置である。第１凹陥部２１ｂ、突出部２１ａ、及び第２凹陥部２１ｃの外縁は、滑らかな曲線で一体に連続的に形成されている。 As shown in FIG. 1, a protrusion 21a that protrudes in a substantially arc shape toward the back is formed at the center in the front-rear direction of the upper part of the front cover part 21. As shown in FIG. A first recessed portion 21b that is recessed toward the front side in a substantially arc shape is formed on the front side of the upper protruding portion 21a of the front side cover portion 21. The position in the front-rear direction where the first recessed portion 21b is formed is behind the first communication hole 10a. A second recessed portion 21c that is recessed toward the front side is formed on the rear side of the upper protruding portion 21a of the front cover portion 21. A second recessed portion 21c is formed. The outer edge of the front cover part 21, on which the second recessed part 21c is formed, is located closer to the front side as it is located to the rear. The position of the second recessed portion 21c in the front-rear direction is the position where the second communication hole 10b is formed. The outer edges of the first recess 21b, the protrusion 21a, and the second recess 21c are integrally and continuously formed with a smooth curve.

前側カバー部２２は、後方が開口した曲面で構成されたドーム状（略半球形状）であり、その下端が底板部１０の前端部の外縁に接続している。前側カバー部２２は、図１に示すように、切創抑制器具１００を上面視した場合に、第１連通穴１０ａを完全に覆っている。前側カバー部２２の後端は、手前側カバー部２１の前端と接続している。図４に示すように、前側カバー部２２の奥側の下部には、前側に向かって凹陥している第３凹陥部２２ａが形成されている。第３凹陥部２２ａが形成されている前側カバー部２２の外縁は、下方に位置するに従って、前側に位置している。つまり、第３凹陥部２２ａは、前側カバー部２２の下方に位置するに従って、より前側に凹陥している。 The front cover part 22 has a dome shape (approximately hemispherical shape) with a curved surface that is open at the rear, and its lower end is connected to the outer edge of the front end of the bottom plate part 10. As shown in FIG. 1, the front cover portion 22 completely covers the first communication hole 10a when the cut prevention device 100 is viewed from above. The rear end of the front cover part 22 is connected to the front end of the front cover part 21. As shown in FIG. 4, a third recessed portion 22a that is recessed toward the front is formed in the lower part of the back side of the front cover portion 22. As shown in FIG. The outer edge of the front cover part 22, on which the third recessed part 22a is formed, is located toward the front as it is located downward. In other words, the third recessed portion 22a is recessed further toward the front as it is located below the front cover portion 22.

（切創抑制器具の使用方法の説明）
以下に、図７を用いて、切創抑制器具１００の使用方法について説明する。シート９００を刃物で切断する際には、図７に示すように、シート９００の上に定規５００を載置し、定規５００の上に、切創抑制器具１００を載置する。そして、第１連通穴１０ａに左手の人差し指を入れつつ、第２連通穴１０ｂに左手の親指を入れて、第１連通穴１０ａ及び第２連通穴１０ｂごしに、人差し指及び親指で定規５００を押さえつける。この状態で、刃物４００を定規５００の外縁に添わせて、シート９００を切断する。もし、刃物４００が定規５００の外縁から外れたとしても、カバー部２０によって作業者の左手の前側及び手前側（刃物側）がカバーされているので、作業者の左手に切創が発生することが抑制される。 (Explanation of how to use the cut suppression device)
A method of using the cut prevention device 100 will be described below with reference to FIG. 7. When cutting the sheet 900 with a knife, a ruler 500 is placed on the sheet 900, and the cut prevention instrument 100 is placed on the ruler 500, as shown in FIG. Then, while inserting the index finger of the left hand into the first communication hole 10a, insert the thumb of the left hand into the second communication hole 10b, and insert the ruler 500 with the index finger and thumb through the first communication hole 10a and the second communication hole 10b. Hold down. In this state, the sheet 900 is cut by aligning the blade 400 with the outer edge of the ruler 500. Even if the cutter 400 comes off the outer edge of the ruler 500, the front and near side (blade side) of the worker's left hand are covered by the cover portion 20, so a cut will not occur on the worker's left hand. is suppressed.

（本実施形態の効果）
以下に本実施形態の切創抑制器具１００の効果について説明する。
切創抑制器具１００は、前後方向に縦長な板状の底板部１０と、底板部１０の前後方向と直行する幅方向の一方側である手前側の外縁及び底板部１０の前側の外縁に接続し、底板部１０の上方において、底板部１０の手前側及び前側をカバーするカバー部２０とを有する。そして、底板部１０の先端部には第１連通穴１０ａが形成されるとともに、底板部１０の後端部には第２連通穴１０ｂが形成されている。 (Effects of this embodiment)
The effects of the cut suppression device 100 of this embodiment will be explained below.
The cut suppression device 100 has a plate-shaped bottom plate portion 10 that is elongated in the front-rear direction, and is connected to the outer edge of the bottom plate portion 10 on the front side, which is one side in the width direction perpendicular to the front-rear direction, and to the outer edge of the front side of the bottom plate portion 10. However, above the bottom plate part 10, it has a cover part 20 that covers the front side and the front side of the bottom plate part 10. A first communication hole 10a is formed at the tip of the bottom plate 10, and a second communication hole 10b is formed at the rear end of the bottom plate 10.

これによれば、図７に示すように、シート９００の上に定規５００を載置し、定規５００の上に、切創抑制器具１００を載置し、第１連通穴１０ａ及び第２連通穴１０ｂごしに、作業者の指で定規５００を押さえつけ、この状態で、刃物４００を定規５００の外縁に添わせて、シート９００を切断することができる。このため、刃物４００側である手前側だけでなく、前側も切創抑制器具１００のカバー部２０で保護される。よって、シート９００を刃物４００で切断する際の切創を抑制することができる切創抑制器具１００を提供することができる。 According to this, as shown in FIG. 7, a ruler 500 is placed on a sheet 900, a cut prevention device 100 is placed on the ruler 500, and the first communication hole 10a and the second communication hole The sheet 900 can be cut by pressing the ruler 500 with the operator's fingers across the ruler 10b and, in this state, aligning the blade 400 with the outer edge of the ruler 500. Therefore, not only the front side, which is the side of the cutter 400, but also the front side are protected by the cover part 20 of the cut prevention instrument 100. Therefore, it is possible to provide the cut prevention instrument 100 that can suppress cuts when cutting the sheet 900 with the blade 400.

また、カバー部２０は、板状であり、その下端が底板部１０の手前側の外縁に接続している手前側カバー部２１と、後方が開口した曲面で構成されたドーム状であり、その下端が底板部１０の前端部の外縁に接続するとともに手前側カバー部２１の前端部に接続している前側カバー部２２とを備えている。 The cover part 20 has a plate shape, and has a front cover part 21 whose lower end is connected to the outer edge of the front side of the bottom plate part 10, and a dome shape having a curved surface that is open at the rear. It includes a front cover part 22 whose lower end is connected to the outer edge of the front end of the bottom plate part 10 and to the front end of the front cover part 21 .

これによれば、作業者の手をより確実に保護することができ、より確実にシート９００を刃物４００で切断する際の切創を抑制することができる。また、前側カバー部２２は、曲面で構成されたドーム状であるので、前側カバー部２２が他の物体に引っかかってしまうことが抑制される。 According to this, it is possible to protect the operator's hands more reliably, and it is possible to more reliably suppress cuts when cutting the sheet 900 with the blade 400. Moreover, since the front cover part 22 has a dome shape with a curved surface, it is possible to suppress the front cover part 22 from getting caught on other objects.

また、図１に示すように、第１連通穴１０ａは、丸穴であり、第２連通穴１０ｂは、前後方向に縦長な長穴である。 Moreover, as shown in FIG. 1, the first communication hole 10a is a round hole, and the second communication hole 10b is a long hole that is vertically elongated in the front-rear direction.

これによれば、第１連通穴１０ａに左手の人差し指を入れつつ、第２連通穴１０ｂに左手の親指を入れて、第１連通穴１０ａ及び第２連通穴１０ｂごしに、人差し指及び親指で定規５００を押さえつけることができる。丸穴である第１連通穴１０ａごしに、左手の人差し指で定規５００を押さえることにより、定規５００に対する切創抑制器具１００の位置を所望の位置に固定させることができる。また、第２連通穴１０ｂは、長穴であるので、作業者によって手の大きさが異なったとしても、左手の親指を第２連通穴１０ｂに入れて、第２連通穴１０ｂごしに、左手の親指で定規５００を押さえつけることができる。 According to this, while inserting the index finger of the left hand into the first communication hole 10a, the thumb of the left hand is inserted into the second communication hole 10b, and the index finger and thumb are inserted through the first communication hole 10a and the second communication hole 10b. A ruler 500 can be held down. By pressing the ruler 500 with the index finger of the left hand through the first communicating hole 10a, which is a round hole, the position of the cut suppression device 100 relative to the ruler 500 can be fixed at a desired position. In addition, since the second communication hole 10b is a long hole, even if the size of the hand differs depending on the operator, the user can insert the thumb of the left hand into the second communication hole 10b and pass through the second communication hole 10b. The ruler 500 can be pressed down with the thumb of the left hand.

また、図１に示すように、前側カバー部２２は、第１連通穴１０ａを覆っている。 Further, as shown in FIG. 1, the front cover portion 22 covers the first communication hole 10a.

これによれば、前側カバー部２２によって、作業者の左手の人差し指を確実に保護することができる。 According to this, the front cover part 22 can reliably protect the index finger of the left hand of the worker.

また、図６に示すように、底板部１０と手前側カバー部２１とのなす角θは、４５°～７５°である。 Further, as shown in FIG. 6, the angle θ between the bottom plate portion 10 and the front cover portion 21 is 45° to 75°.

上記角θが大きい場合には、手前側カバー部２１によって十分に作業者の左手が保護されず、上記角θが小さい場合には、手前側カバー部２１が作業者の左手に当たってしまう。そこで、本発明の発明者は、上記角θを４５°～７５°に設定することにより、手前側カバー部２１が作業者の左手に当たること無く、好適に手前側カバー部２１によって十分に作業者の左手が保護されることを見出した。 When the angle θ is large, the left hand of the worker is not sufficiently protected by the front cover portion 21, and when the angle θ is small, the front cover portion 21 hits the left hand of the worker. Therefore, the inventor of the present invention set the above-mentioned angle θ to 45° to 75°, so that the front cover portion 21 does not hit the worker's left hand, and the front cover portion 21 can sufficiently protect the worker. found that the left hand of the patient was protected.

また、図６に示すように、手前側カバー部２１の上端部の断面形状は、上方に位置するに従ってより奥側に位置する円弧形状に湾曲している。 Further, as shown in FIG. 6, the cross-sectional shape of the upper end of the front cover part 21 is curved into an arc shape that is located further back as it is located upward.

これによれば、手前側カバー部２１によって、作業者の左手を好適に保護することができる。 According to this, the operator's left hand can be suitably protected by the front cover portion 21.

また、図１に示すように、手前側カバー部２１の上部の前後方向の中央部には、奥側に向かって突出する突出部２１ａが形成されている。 Further, as shown in FIG. 1, a protruding portion 21a that protrudes toward the back side is formed at the center portion of the upper part of the front cover portion 21 in the front-rear direction.

また、図１に示すように、突出部２１ａの前側には、手前側に向かって凹陥している第１凹陥部２１ｂが形成されている。 Further, as shown in FIG. 1, a first recessed portion 21b that is recessed toward the front side is formed on the front side of the protruding portion 21a.

これによれば、第１凹陥部２１ｂによって、手前側カバー部２１が作業者の左手の人差し指に当たることが抑制される。 According to this, the first concave portion 21b prevents the front cover portion 21 from coming into contact with the index finger of the left hand of the operator.

また、図１に示すように、手前側カバー部２１の上部の突出部２１ａの後側には、手前側に向かって凹陥している第２凹陥部２１ｃが形成されている。 Further, as shown in FIG. 1, a second recessed portion 21c that is recessed toward the front side is formed on the rear side of the upper protruding portion 21a of the front side cover portion 21.

これによれば、第２凹陥部２１ｃによって、手前側カバー部２１が作業者の左手の親指に当たることが抑制される。 According to this, the second recessed portion 21c prevents the front side cover portion 21 from coming into contact with the thumb of the left hand of the operator.

また、図４に示すように、前側カバー部２２の奥側の下部には、前側に向かって凹陥している第３凹陥部２２ａが形成されている。 Further, as shown in FIG. 4, a third recessed portion 22a that is recessed toward the front is formed in the lower part of the rear side of the front cover portion 22.

これによれば、前側カバー部２２が、作業者の左手の人差し指に当たることが抑制される。 According to this, the front cover portion 22 is prevented from hitting the index finger of the worker's left hand.

また、図４に示すように、第３凹陥部２２ａは、前側カバー部２２の下方に位置するに従って、より前側に凹陥している。 Further, as shown in FIG. 4, the third recessed portion 22a is recessed further toward the front as it is located below the front cover portion 22. As shown in FIG.

これによれば、前側カバー部２２が、作業者の左手の人差し指に当たることがより一層抑制される。 According to this, it is further suppressed that the front cover part 22 hits the index finger of the worker's left hand.

また、図１に示すように、底板部１０の前端部の手前側及び奥側の角部は、円弧形状である。 Further, as shown in FIG. 1, the front and back corners of the front end of the bottom plate portion 10 are arcuate.

これによれば、切創抑制器具１００の前端部の手前側及び奥側の角部が他の物体に引っかかってしまうことが抑制される。 According to this, it is suppressed that the front and back corners of the front end of the cut suppression instrument 100 get caught on other objects.

また、図１に示すように、底板部１０の後端部の奥側の角部は、円弧形状である。 Further, as shown in FIG. 1, the rear corner of the bottom plate portion 10 has an arc shape.

これによれば、底板部１０の後端部の奥側の角部が他の物体に引っかかってしまうことが抑制される。 According to this, the back corner of the rear end portion of the bottom plate portion 10 is prevented from being caught on another object.

以上、現時点において、もっとも、実践的であり、かつ好ましいと思われる実施形態に関連して本発明を説明したが、本発明は、本願明細書中に開示された実施形態に限定されるものではなく、請求の範囲及び明細書全体から読み取れる発明の要旨あるいは思想に反しない範囲で適宜変更可能であり、そのような変更を伴う切創抑制器具１００もまた技術的範囲に包含されるものとして理解されなければならない。 Although the present invention has been described above in connection with the embodiments that are considered to be the most practical and preferred at the present time, the present invention is not limited to the embodiments disclosed in the specification of this application. However, it is understood that changes can be made as appropriate within the scope or spirit of the invention that can be read from the claims and the specification as a whole, and that the cut suppression device 100 with such changes is also included within the technical scope. It must be.

１００切創抑制器具
１０底板部
１０ａ第１連通穴
１０ｂ第２連通穴
２０カバー部
２１手前側カバー部
２１ａ突出部
２１ｂ第１凹陥部
２１ｃ第２凹陥部
２２前側カバー部
２２ａ第３凹陥部 100 Cut suppression device 10 Bottom plate portion 10a First communication hole 10b Second communication hole 20 Cover portion 21 Front cover portion 21a Projection portion 21b First recess portion 21c Second recess portion 22 Front cover portion 22a Third recess portion

Claims

A cut prevention device used when cutting a sheet with a ruler,
a plate-shaped bottom plate portion (10) that is vertically elongated in the front-rear direction;
Connected to a front outer edge of the bottom plate part that is one side in a width direction perpendicular to the front-back direction and a front outer edge of the bottom plate part, and covering the near side and front side of the bottom plate part above the bottom plate part. a cover part (20),
A first communication hole (10a) into which the index finger is inserted is formed at the tip of the bottom plate, and a second communication hole (10b) into which the thumb is inserted is formed at the rear end of the bottom plate ;
Press down the ruler placed on the sheet with the index finger and the thumb through the first communication hole and the second communication hole, and in this state, place the cutler along the outer edge of the ruler, A cut prevention instrument configured to cut a sheet, and configured so that the index finger and the thumb are protected by the cover portion at this time .

The cover part is
a front side cover part (21) which is plate-shaped and whose lower end is connected to the front side outer edge of the bottom plate part;
a front cover part (22) that has a dome shape with a curved surface that is open at the rear, and whose lower end is connected to the outer edge of the front end of the bottom plate part and to the front end of the front cover part; The cut suppression device according to claim 1, further comprising:

The first communication hole is a round hole,
The cut suppression device according to claim 2, wherein the second communication hole is a long hole that is longitudinally elongated in the front-back direction.

The cut suppression device according to claim 3, wherein the front cover portion covers the first communication hole.

The cut prevention device according to claim 2, wherein an angle θ between the bottom plate portion and the front cover portion is 45° to 75°.

3. The cut suppression device according to claim 2, wherein the cross-sectional shape of the upper end of the front cover part is curved into an arc shape that is located further back as it is located upward.

3. The cutter according to claim 2, wherein a protrusion (21a) for protecting the hand is formed in the center of the upper part of the front cover part in the front-rear direction so as to protrude toward the back side. Wound control devices.

A first concave portion (21b) for suppressing the cover portion from coming into contact with the index finger is formed on the front side of the protruding portion of the upper portion of the front side cover portion toward the front side. The cut prevention device according to claim 7.

A second concave portion (21c) for suppressing the cover portion from coming into contact with the thumb is formed on the rear side of the protrusion at the top of the front cover portion toward the front side. The cut suppression device according to claim 7, characterized in that:

3. The cutout according to claim 2, wherein a third recessed portion (22a) is formed toward the front in a lower part of the back side of the front cover portion to prevent the index finger from coming into contact with the index finger. Wound control devices.

The cut suppression device according to claim 10, wherein the third recess is recessed further toward the front as the third recess is located below the front cover.

The cut prevention device according to claim 1, wherein the front and rear corners of the front end of the bottom plate are arcuate.

The cut suppression device according to claim 1, wherein a corner on the back side of the rear end of the bottom plate portion has an arc shape.