JP6486203B2

JP6486203B2 - Manual instrument

Info

Publication number: JP6486203B2
Application number: JP2015109548A
Authority: JP
Inventors: 蒲生孝志
Original assignee: 河部精密工業株式会社
Priority date: 2015-05-29
Filing date: 2015-05-29
Publication date: 2019-03-20
Anticipated expiration: 2035-05-29
Also published as: JP2016221616A

Description

本発明は、把持部に対して鋸刃等の機能部が取り付け可能な鋸等の手動利器に関する。 The present invention relates to a manual instrument such as a saw in which a functional part such as a saw blade can be attached to a gripping part.

従来、特許文献１に示すように、把持部に対して鋸刃等の機能部が取り付け可能な鋸等の手動利器が知られている。たとえば、特許文献１の鋸は、グリップが取り付けられたのこ身保持部に対して、のこ身が着脱可能に取り付けられている。のこ身保持部に対するのこ身の取り付け構造は、次のようになっている。のこ身の根元部における幅方向両端に、第１、第２の係止溝が形成されている。のこ身保持部の先端部における幅方向一端には、回転自在に軸止されて起立姿勢と平伏姿勢との間で姿勢を変更可能なトルクハンドルと、トルクハンドルに駆動される係止環とが設けられ、その幅方向他端には、固定支点部が設けられている。のこ身をのこ身保持部に取り付ける場合には、のこ身の第１の係止溝にのこ身保持部の固定支点部を嵌め入れるとともに、のこ身の第２の係止溝にのこ身保持部の係止環を嵌め入れた状態で、起立姿勢のハンドルを平伏姿勢まで回転させることで係止環を駆動させ、係止環と固定支点部とでのこ身をのこ身保持部に固定する。そして、のこ身をのこ身保持部から取り外す場合には、平伏姿勢のハンドルを起立姿勢まで回転させることで係止環を駆動させ、のこ身の第１の係止溝とのこ身保持部の固定支点部との嵌合を解除するとともに、のこ身の第２の係止溝とのこ身保持部の係止環との嵌合を解除する。 Conventionally, as shown in Patent Document 1, a manual instrument such as a saw is known in which a functional part such as a saw blade can be attached to a gripping part. For example, in the saw of Patent Document 1, the saw body is detachably attached to the saw body holding portion to which the grip is attached. The structure for attaching the body to the body holding part is as follows. First and second locking grooves are formed at both ends in the width direction of the root portion of the saw body. At one end in the width direction at the distal end of the saw body holding portion, a torque handle that is rotatably supported and can change its posture between a standing posture and a prone posture, and a locking ring that is driven by the torque handle, And a fixed fulcrum portion is provided at the other end in the width direction. When attaching the saw body to the saw body holding part, the fixed fulcrum part of the saw body holding part is fitted into the first locking groove of the saw body, and the second locking groove of the saw body With the locking ring of the sword body holding part fitted, rotate the handle in the standing position to the flat position to drive the locking ring, and remove the body from the locking ring and the fixed fulcrum. Secure to the body holder. And when removing the saw body from the body holding part, the locking ring is driven by rotating the handle in the flat posture to the standing position, and the first locking groove of the body and the body holding part The fitting with the fixed fulcrum portion is released, and the fitting between the second locking groove of the saw body and the locking ring of the saw body holding portion is released.

特開平５−１８５３８１号公報Japanese Patent Laid-Open No. 5-185811

上述した従来の鋸では、のこ身（鋸刃）をのこ身保持部（把持部）に取り付けする際に、第１、第２の係止溝に対して、固定支点部及び係止環を嵌め入れて、ハンドルの回転操作をしなければならなかった。このため、鋸刃をのこ身保持部に対して取り付けするための手間がかかり、容易ではなかった。そして、上述した従来の鋸ではトルクハンドルの軸支機構を設けなければならず、のこ身保持部に対するのこ身の取り付け構造が複雑であった。更に、ハンドルが起立姿勢のときには、第１、第２の係止溝に対する固定支点部及び係止環の嵌合が解除可能であり、ハンドルが平伏姿勢のときには、第１、第２の係止溝に対する固定支点部及び係止環の嵌合が解除不可能であるように構成されるため、鋸刃に形成される第１、第２の係止溝の形状も精巧さが要求された。これによっても、のこ身保持部に対するのこ身の取り付け構造は複雑なものになっていた。 In the above-described conventional saw, when the saw body (saw blade) is attached to the saw body holding portion (gripping portion), the fixed fulcrum portion and the locking ring with respect to the first and second locking grooves. Had to be inserted and the handle rotated. For this reason, it takes time and effort to attach the saw blade to the saw body holding part, which is not easy. In the conventional saw described above, a shaft support mechanism for the torque handle has to be provided, and the structure for attaching the saw to the saw holder is complicated. Further, when the handle is in the standing posture, the fitting of the fixed fulcrum portion and the locking ring to the first and second locking grooves can be released, and when the handle is in the flat posture, the first and second locking Since the fitting of the fixed fulcrum portion and the locking ring to the groove cannot be released, the shape of the first and second locking grooves formed on the saw blade is also required to be sophisticated. This also makes the structure for attaching the body to the body holding part complicated.

そこで、本発明の課題は、上記の問題を解決するために、鋸刃等の機能部の把持部に対する取り付けが容易に出来るとともに、機能部の把持部に対する取付け構造が簡易な手動利器を提供することである。 Accordingly, an object of the present invention is to provide a manual instrument that can easily attach a functional part such as a saw blade to a gripping part and has a simple structure for attaching the functional part to the gripping part in order to solve the above problems. That is.

（１）上記課題を解決するために、本発明に係る手動利器は、一端側に貫通孔（３１）が形成された機能部（３）と、前記機能部（３）を挿入する挿入孔（２Ａ）が形成された把持部（２）と、前記機能部（３）を前記把持部（２）に取り付ける取付け部（４）と、を備えた手動利器であって、前記挿入孔（２Ａ）は、前記把持部（２）に穿設され、前記把持部（２）の一端側に開口する孔であり、前記把持部（２）は、前記挿入孔（２Ａ）の内面に開口する取付け用孔（２２２１）を有し、前記取付け部（４）は、取付け部本体（４Ａ）と、前記貫通孔（３１）に挿通し、前記取付け部本体（４Ａ）から突出度合が可変になるように突出した嵌合部（４２）とを有し、前記機能部（３）と前記取付け部（４）が前記挿入孔（２Ａ）の前記開口から前記挿入孔（２Ａ）に挿入されることで、前記嵌合部（４２）が、前記貫通孔（３１）に挿通され、この貫通孔（３１）からの突出部位（４２２）で前記取付け用孔（２２２１）に嵌合される、ことを特徴とする。 (1) In order to solve the above-described problem, a manual instrument according to the present invention includes a function part (3) having a through hole (31) formed on one end side, and an insertion hole (in which the function part (3) is inserted ( grip portion 2A) is formed and (2), the mounting portion for mounting the front Symbol function unit (3) said gripping portion (2) and (4), a manual conveniences provided with the insertion hole (2A ) is formed in the grip portion (2) is a hole opened on one end side of the grip portion (2), the grip portion (2) is open to the inner surface of the front Symbol insertion hole (2A) has a mounting hole (2221), the mounting portion (4) includes a mounting portion main body (4A), inserted into the through hole (31), the mounting portion main body (4A) or al collision out degree variable and a fitting portion protruding so as to (42), wherein the functional unit (3) and the mounting portion (4) the opening of the insertion hole (2A) In Rukoto is inserted into the insertion hole (2A) from the fitting portion (42) is inserted into the through hole (31), the mounting in the protruding portion from the through-hole (31) (422) It is characterized by being fitted into the hole (2221).

上記構成によれば、取付け部（４）が把持部（２）の挿入孔（２Ａ）に挿入されると、取付け部（４）の嵌合部（４２）が挿入孔（２Ａ）の内面に押圧されて、この嵌合部（４２）の突出度合いが、取付け部（４）の挿入孔（２Ａ）への挿入を妨げない程度になる。そして、機能部（３）と取付け部（４）が把持部（２）の挿入孔（２Ａ）に挿入された状態において、機能部（３）の貫通孔（３１）と把持部（２）の取付け用孔（２２２１）と取付け部（４）の嵌合部（４２）とが重なった状態になると、取付け部（４）の嵌合部（４２）は、挿入孔（２Ａ）の内面に押圧されなくなるため、嵌合部（４２）の突出度合いは、挿入孔（２Ａ）の内面に押圧されていたときより大きくなる。この状態では、取付け部（４）の嵌合部（４２）が機能部（３）の貫通孔（３１）に挿通され、かつ、取付け部（４）における貫通孔（３１）からの突出部位（４２２）が把持部（２）の挿入孔（２Ａ）に形成された取付け用孔（２２２１）に嵌り、取付け部（４）によって機能部（３）が把持部（２）に取り付けられる。これによって、把持部（２）の挿入孔（２Ａ）内に機能部（３）と取付け部（４）とを挿入するだけで、機能部（３）が把持部（２）に取り付けられ、機能部（３）の把持部（２）に対する取り付けを容易に行うことができる。また、取付け部（４）の嵌合部（４２）を、機能部（３）の貫通孔（３１）と把持部（２）の取付け用孔（２２２１）とに嵌合させるだけの簡易な構成で、機能部（３）を把持部（２）に取り付けることができるため、機能部（３）の把持部（２）に対する取付け構造が簡易になる。 According to the above configuration, when the attachment portion (4) is inserted into the insertion hole (2A) of the grip portion (2), the fitting portion (42) of the attachment portion (4) is formed on the inner surface of the insertion hole (2A). When pressed, the degree of protrusion of the fitting portion (42) does not hinder insertion of the attachment portion (4) into the insertion hole (2A). Then, in a state where the functional part (3) and the attachment part (4) are inserted into the insertion hole (2A) of the gripping part (2), the through hole (31) of the functional part (3) and the gripping part (2) When the mounting hole (2221) and the fitting part (42) of the mounting part (4) are overlapped, the fitting part (42) of the mounting part (4) is pressed against the inner surface of the insertion hole (2A). Therefore, the degree of protrusion of the fitting portion (42) becomes larger than when it is pressed against the inner surface of the insertion hole (2A). In this state, the fitting portion (42) of the attachment portion (4) is inserted into the through hole (31) of the functional portion (3), and the protruding portion from the through hole (31) in the attachment portion (4) ( 422) fits into the mounting hole (2221) formed in the insertion hole (2A) of the gripping part (2), and the functional part (3) is attached to the gripping part (2) by the mounting part (4). Thus, the functional part (3) is attached to the gripping part (2) simply by inserting the functional part (3) and the attachment part (4) into the insertion hole (2A) of the gripping part (2). The part (3) can be easily attached to the grip part (2). Moreover, the simple structure which only fits the fitting part (42) of an attachment part (4) with the through-hole (31) of a function part (3) and the attachment hole (2221) of a holding part (2). Thus, since the functional part (3) can be attached to the gripping part (2), the attachment structure of the functional part (3) to the gripping part (2) is simplified.

（２）上記把持部（２）は、前記嵌合部（４２）を前記取付け用孔（２２２１）から押し出して、前記嵌合部（４２）と前記取付け用孔（２２２１）との前記嵌合を解除するための嵌合解除機構（２２０）を有してもよい。 (2) The gripping part (2) pushes the fitting part (42) out of the mounting hole (2221), and the fitting between the fitting part (42) and the mounting hole (2221). There may be provided a fitting release mechanism (220) for releasing.

上記構成によれば、嵌合解除機構（２２０）によって、嵌合部（４２）を取付け用孔（２２２１）から押し出して、嵌合部（４２）と取付け用孔（２２２１）との嵌合を解除することで、機能部（３）の把持部（２）に対する取り外しを行うことができる。このため、嵌合部（４２）を取付け用孔（４２２１）の反対側に押し出す直線的な操作によって、機能部（３）の把持部（２）に対する取り外しを行うことができるよう嵌合解除機構（２２０）を構成することができる。これによって、この取り外しに要求される操作が容易になる。 According to the above configuration, the fitting release mechanism (220) pushes the fitting portion (42) out of the attachment hole (2221), thereby fitting the fitting portion (42) and the attachment hole (2221). By releasing, the functional part (3) can be detached from the grip part (2). For this reason, a fitting release mechanism is provided so that the functional part (3) can be detached from the grip part (2) by a linear operation of pushing the fitting part (42) to the opposite side of the mounting hole (4221). (220) can be configured. This facilitates the operation required for this removal.

（３）上記嵌合部は、前記取付け部本体（４Ａ）から斜め下方向に延びる可撓性を有する突出片（４２１）と、この突出片（４２１）の下端に設けられた前記突出部位（４２２）とを有してもよい。 (3) The fitting portion includes a projecting piece (421) having flexibility extending obliquely downward from the attachment section main body (4A), and the projecting portion provided at the lower end of the projecting piece (421) ( 422).

上記構成によれば、取付け部（４）の挿入孔（２Ａ）への挿入によって、挿入孔（２Ａ）の内面で突出部位（４２２）を押圧させて、突出片（４２１）を撓ませて、突出部位（４２２）が取付け用孔（２２２１）の位置に到達するまで取付け部（４）を挿入孔（２Ａ）に挿入させ、突出部位（４２２）が取付け用孔（２２２１）の位置に到達したときに、突出片（４２１）の撓みが解除されて突出部位（４２２）が取付け用孔（２２２１）に嵌め入れられる。同様に、突出片（４２１）を撓ませて突出部位（４２２）を取付け用孔（２２２１）から外し、挿入孔（２Ａ）から取り付け部（４）を取り外すことができる。これによって、簡易な構成で、突出部位（４２２）を取付け用孔（２２２１）に着脱可能にすることができる。更に、突出片（４２１）が斜め下方に延びているため、挿入孔（２Ａ）の挿入方向が下端になるように形成することで、取付け部（４）を挿入孔（２Ａ）から抜き易くし、挿入方向の反対方向が下端になるように突出片（４２１）を形成することで、取付け部（４）を挿入孔（２Ａ）に入れ易くすることができる。 According to the above configuration, by inserting the attachment portion (4) into the insertion hole (2A), the protruding portion (422) is pressed on the inner surface of the insertion hole (2A), and the protruding piece (421) is bent, The mounting portion (4) is inserted into the insertion hole (2A) until the protruding portion (422) reaches the position of the mounting hole (2221), and the protruding portion (422) reaches the position of the mounting hole (2221). Sometimes, the bending of the protruding piece (421) is released, and the protruding portion (422) is inserted into the mounting hole (2221). Similarly, the protruding piece (421) can be bent to remove the protruding portion (422) from the mounting hole (2221), and the mounting portion (4) can be removed from the insertion hole (2A). Accordingly, the projecting portion (422) can be attached to and detached from the mounting hole (2221) with a simple configuration. Further, since the protruding piece (421) extends obliquely downward, the mounting portion (4) can be easily removed from the insertion hole (2A) by forming the insertion hole (2A) so that the insertion direction is the lower end. By forming the protruding piece (421) so that the opposite direction to the insertion direction is the lower end, the attachment portion (4) can be easily inserted into the insertion hole (2A).

（４）上記取付け用孔（２２２１）は、有底孔であり、上記嵌合解除機構（２２０）は、前記把持部（２）における前記有底孔の底部に形成された貫通孔であってもよい。 (4) The mounting hole (2221) is a bottomed hole, and the fitting release mechanism (220) is a through hole formed at the bottom of the bottomed hole in the gripping part (2). Also good.

上記構成によれば、貫通孔に対して有底孔と反対側から有底孔側に向かって、針やピン等の押し出し部材を貫通孔に挿入することで、嵌合部（４２）を取付け用孔（２２２１）から押し出して、嵌合部（４２）と取付け用孔（２２２１）との嵌合を解除することができる。これによって、嵌合解除機構を、貫通孔を形成するだけの簡易な構造にすることができる。 According to the above configuration, the fitting portion (42) is attached by inserting the pushing member such as a needle or a pin into the through hole from the opposite side to the bottomed hole side with respect to the through hole. The fitting between the fitting portion (42) and the mounting hole (2221) can be released by pushing out from the use hole (2221). As a result, the fitting release mechanism can have a simple structure that only forms a through hole.

（５）上記機能部の鞘（５）を更に備え、上記取付け部本体（４Ａ）は、ユーザに押圧可能に形成された操作部（４３）を備え、この操作部（４３）における前記機能部（３）に面する部位に、機能部（３）と反対方向に操作部（４３）を付勢する付勢手段（４３４）を有するとともに、前記操作部（４３）の前記機能部（３）に面する部位の反対面側に、前記鞘（５）との係合部位（４３２）が形成されてもよい。そして、前記操作部（４３）がユーザに押圧されていない状態で、前記係合部位（４３２）と前記鞘（５）とが係合され、前記操作部（４３）がユーザに押圧されている状態で、前記係合部位（４３２）と前記鞘（５）との係合が解除されてもよい。 (5) It further includes a sheath (5) of the function part, and the attachment part main body (4A) includes an operation part (43) formed so as to be pressed by a user, and the function part in the operation part (43). The part facing (3) has a biasing means (434) for biasing the operation part (43) in the opposite direction to the function part (3), and the function part (3) of the operation part (43). An engagement part (432) with the sheath (5) may be formed on the opposite side of the part facing the surface. Then, in a state where the operation portion (43) is not pressed by the user, the engagement portion (432) and the sheath (5) are engaged, and the operation portion (43) is pressed by the user. In the state, the engagement between the engagement portion (432) and the sheath (5) may be released.

上記構成によれば、取付け部（４）の操作部（４３）がユーザに押圧されていない状態で、係合部位（４３２）と前記鞘（５）とが係合される。この様に、取付け部（４）を機能部（３）を、把持部（２）に取り付ける構成としてだけでなく、鞘（５）を把持部（２）に固定する構成としても利用することで、別に鞘（５）を把持部（２）に固定する構成を設ける必要がなくなり、鋸の構造がより簡易なものとなる。更に、操作部（４３）がユーザに押圧されている状態で、前記係合部位（４３２）と前記鞘（５）との係合が解除されるため、鞘（５）の把持部（２）に対する固定の解除が容易になる。 According to the said structure, an engagement site | part (432) and the said sheath (5) are engaged in the state which the operation part (43) of the attachment part (4) is not pressed by the user. In this way, the mounting portion (4) is used not only as a configuration for attaching the functional portion (3) to the gripping portion (2) but also as a configuration for fixing the sheath (5) to the gripping portion (2). In addition, it is not necessary to separately provide a structure for fixing the sheath (5) to the grip portion (2), and the structure of the saw becomes simpler. Furthermore, since the engagement between the engagement portion (432) and the sheath (5) is released in a state where the operation portion (43) is pressed by the user, the grip portion (2) of the sheath (5) is released. It becomes easy to release the fixing.

（６）上記機能部は鋸刃であってもよく、手動利器は鋸であってもよい。 (6) The functional unit may be a saw blade, and the manual instrument may be a saw.

鋸は前後方向に動かされて、金属や木材等の固い対象物を切る刃物であるが、上記鋸刃の把持部への取り付け構造によれば、固い対象物を切る前後方向の動作によっても、鋸刃が把持部から抜け落ち難いように、鋸刃を把持部に対して強固に固定することができる。なお、本発明の手動利器には、鋸、包丁、ナイフ、剃刀、彫刻刀等の刃（機能部）を有する手動器具が広く含まれるとともに、ねじ部（機能部）を有するねじ回し等の手動工具や、スプーン、フォーク等の刃を有さない手動器具も含む。本発明の手動利器は、把持部に対して、機能部が取り付け可能なものであれば、如何なるものであってもよい。 The saw is moved in the front-rear direction and is a blade that cuts a hard object such as metal or wood, but according to the structure for attaching the saw blade to the gripping part, the operation in the front-rear direction to cut the hard object The saw blade can be firmly fixed to the grip portion so that the saw blade does not easily fall out of the grip portion. The manual instrument of the present invention includes a wide range of manual instruments having blades (functional parts) such as saws, knives, knives, razors, engraving swords, etc., and manual screwdrivers having screw parts (functional parts). Includes manual tools without tools and spoons, forks, etc. The manual instrument of the present invention may be any one as long as the functional part can be attached to the gripping part.

上記構成によれば、機能部の把持部に対する取り付けが容易に出来るとともに、機能部の把持部に対する取付け構造が簡易な鋸を提供することができる。 According to the said structure, while being able to attach the functional part with respect to the holding part easily, the attachment structure with respect to the holding part of a functional part can be provided simply.

（ａ）は本実施形態に係る鋸の平面図であり、（ｂ）は本実施形態に係る鋸の底面図である。(A) is a top view of the saw which concerns on this embodiment, (b) is a bottom view of the saw which concerns on this embodiment. （ａ）は鞘を外した状態の本実施形態に係る鋸の平面図であり、（ｂ）は鞘を外した状態の本実施形態に係る鋸の底面図である。(A) is a top view of the saw which concerns on this embodiment of the state which removed the sheath, (b) is a bottom view of the saw which concerns on this embodiment of the state which removed the sheath. （ａ）は鞘を外した状態の本実施形態に係る鋸の正面図であり、（ｂ）は鞘を外した状態の本実施形態に係る鋸の背面図である。(A) is a front view of the saw according to the present embodiment with the sheath removed, and (b) is a rear view of the saw according to the present embodiment with the sheath removed. （ａ）は鞘を外した状態の本実施形態に係る鋸の左側面図であり、（ｂ）は鞘を外した状態の本実施形態に係る鋸の右側面図である。(A) is a left side view of the saw according to the present embodiment with the sheath removed, and (b) is a right side view of the saw according to the present embodiment with the sheath removed. （ａ）は図２（ｂ）の鋸のＡ−Ａ矢視断面図であり、（ｂ）は図２（ｂ）の鋸において上側鞘部と上側把持部とを外した状態の図である。2A is a cross-sectional view of the saw of FIG. 2B taken along the line AA, and FIG. 2B is a view of the saw of FIG. 2B with the upper sheath portion and the upper gripping portion removed. . 本実施形態に係る鋸の分解図である。It is an exploded view of the saw concerning this embodiment. 鋸刃の把持部に対する取り付け方法を示す図である。It is a figure which shows the attachment method with respect to the holding part of a saw blade. 鋸刃の把持部からの取り外し方法を示す図である。It is a figure which shows the removal method from the holding part of a saw blade. 変形例に係る取付け部を示す図である。It is a figure which shows the attaching part which concerns on a modification. 変形例に係る取付け部及び取付け用孔を示す図である。It is a figure which shows the attaching part and attachment hole which concern on a modification. 変形例に係る取付け部を示す図である。It is a figure which shows the attaching part which concerns on a modification.

以下、本発明の好適な一実施形態（本実施形態）について、図面を参照しつつ説明する。本実施形態は、本発明に係る手動利器を替刃式鋸に適用した形態である。 Hereinafter, a preferred embodiment (this embodiment) of the present invention will be described with reference to the drawings. In the present embodiment, the manual instrument according to the present invention is applied to a replaceable blade saw.

（替刃式鋸の構成）
以下に、図１から図６を参照して、本実施形態に係る替刃式鋸の構成について説明する。図１は、（ａ）は本実施形態に係る鋸の平面図であり、（ｂ）は本実施形態に係る鋸の底面図である。図２（ａ）は、鞘を外した状態の本実施形態に係る鋸の平面図であり、図２（ｂ）は、鞘を外した状態の本実施形態に係る鋸の底面図である。図３（ａ）は、鞘を外した状態の本実施形態に係る鋸の正面図であり、図３（ｂ）は、鞘を外した状態の本実施形態に係る鋸の背面図である。図４（ａ）は鞘を外した状態の本実施形態に係る鋸の左側面図であり、図４（ｂ）は鞘を外した状態の本実施形態に係る鋸の右側面図である。図５（ａ）は図２（ｂ）の鋸のＡ−Ａ矢視断面図であり、図５（ｂ）は図２（ｂ）の鋸において上側鞘部と上側把持部とを外した状態の図である。図６本実施形態に係る鋸の分解図である。 (Configuration of replaceable blade saw)
Below, with reference to FIGS. 1-6, the structure of the replaceable blade type saw which concerns on this embodiment is demonstrated. 1A is a plan view of a saw according to the present embodiment, and FIG. 1B is a bottom view of the saw according to the present embodiment. FIG. 2A is a plan view of the saw according to the present embodiment with the sheath removed, and FIG. 2B is a bottom view of the saw according to the present embodiment with the sheath removed. FIG. 3A is a front view of the saw according to the present embodiment with the sheath removed, and FIG. 3B is a rear view of the saw according to the present embodiment with the sheath removed. FIG. 4A is a left side view of the saw according to this embodiment with the sheath removed, and FIG. 4B is a right side view of the saw according to this embodiment with the sheath removed. 5A is a cross-sectional view of the saw of FIG. 2B taken along the line AA, and FIG. 5B is a state where the upper sheath portion and the upper gripping portion are removed from the saw of FIG. 2B. FIG. 6 is an exploded view of the saw according to the present embodiment.

図１及び図２に示すように、本実施形態に係る鋸１は、ユーザが手等で把持するための把持部２と、この把持部２に対して着脱自在に取り付けられる鋸刃３と、鋸刃３を把持部２に着脱自在に取り付ける取付け部４と、鋸刃３の鞘５とを備える。なお、本実施形態では、鋸１は、替刃式鋸であり、鋸刃３が刃こぼれしたとき等に、他の鋸刃３に取り換えることが可能になっているが、替刃式鋸でなくてもよい。以下に、把持部２、鋸刃３、取付け部４、及び鞘５の各部の構成について詳細に説明する。 As shown in FIGS. 1 and 2, a saw 1 according to the present embodiment includes a gripping part 2 for a user to grip with a hand or the like, and a saw blade 3 detachably attached to the gripping part 2, An attachment portion 4 for detachably attaching the saw blade 3 to the grip portion 2 and a sheath 5 of the saw blade 3 are provided. In the present embodiment, the saw 1 is a replaceable blade type saw and can be replaced with another saw blade 3 when the saw blade 3 is spilled. It does not have to be. Below, the structure of each part of the holding | grip part 2, the saw blade 3, the attachment part 4, and the sheath 5 is demonstrated in detail.

（鋸の構成：鋸刃３）
まず、鋸刃３の構成について説明する。鋸刃３は、金属製の平板状の部材であり、その一縁に複数の鋸歯が連続的に形成されている。図６で示すように、鋸刃３には、上下方向に貫通孔３１が形成されるとともに、その根元側の縁に切欠き３２が形成されている。 (Saw configuration: saw blade 3)
First, the configuration of the saw blade 3 will be described. The saw blade 3 is a flat plate member made of metal, and a plurality of saw teeth are continuously formed on one edge thereof. As shown in FIG. 6, the saw blade 3 is formed with a through hole 31 in the vertical direction and a notch 32 at the base side edge.

（鋸の構成：把持部２）
把持部２は、図５（ａ）で示すように、鋸刃３の根元を一端側（左端側）から挿入させて、この根元を収容する長尺状のケースであり、上側把持部２１と下側把持部２２とが上下方向から組み合わされて形成されている。上側把持部２１は、上側把持部本体２１２が滑り止めカバー２１１に覆われて形成されている。なお、上側把持部本体２１２は、例えばＡＢＳ樹脂等の樹脂製であり、滑り止めカバー２１１はエラストマー等のゴム製である。上側把持部本体２１２の内側には、補強のための横リブ及び縦リブが複数形成されている。また、上側把持部２１は、鋸刃３の挿入側の一端に上面視で半円状の切欠き２１Ａが形成されている。なお、この切欠き２１Ａは、上側把持部本体２１２における切欠き２１２Ａと滑り止めカバー２１１における切り欠き２１１Ａとから形成されている。 (Saw configuration: gripping part 2)
As shown in FIG. 5 (a), the grip portion 2 is a long case in which the root of the saw blade 3 is inserted from one end side (left end side) and accommodates this root. The lower holding part 22 is formed by being combined from above and below. The upper gripping portion 21 is formed by covering the upper gripping portion main body 212 with a non-slip cover 211. The upper gripper body 212 is made of a resin such as ABS resin, and the anti-slip cover 211 is made of rubber such as an elastomer. A plurality of horizontal ribs and vertical ribs for reinforcement are formed inside the upper gripping part main body 212. Further, the upper gripping portion 21 is formed with a semicircular cutout 21A at one end on the insertion side of the saw blade 3 in a top view. The notch 21 A is formed by a notch 212 A in the upper gripping part main body 212 and a notch 211 A in the anti-slip cover 211.

上側把持部本体２１２の内側における切欠き２１Ａの右側には、鋸刃３と取付け部４とが挿入可能な挿入空間２１１０が形成されている。なお、上側把持部本体２１２の内側において挿入空間２１１０と他の空間とは、リブによって仕切られている。鋸刃３が把持部２に取り付けられた状態では、鋸刃３が取付け部４の下に重なるように、すなわち、上側把持部２１と鋸刃３との間に取付け部４が配置されるように、鋸刃３と取付け部４とが挿入空間２１１０に挿入される。これによって、取付け部４の左端部を切欠き２１Ａで係止させて、取付け部４の把持部２への挿入度合が規制できるようになっている。また、上側把持部２１（上側把持部本体２１２）の短手方向の縁において、複数個の係止部が形成されており、この複数個の係止部によって、上側把持部２１は下側把持部２２と係止される。 An insertion space 2110 into which the saw blade 3 and the attachment portion 4 can be inserted is formed on the right side of the notch 21 A inside the upper grip portion main body 212. Note that the insertion space 2110 and the other space are partitioned by ribs inside the upper gripping part main body 212. In a state in which the saw blade 3 is attached to the grip portion 2, the attachment portion 4 is disposed so that the saw blade 3 overlaps the attachment portion 4, that is, between the upper grip portion 21 and the saw blade 3. In addition, the saw blade 3 and the attachment portion 4 are inserted into the insertion space 2110. As a result, the left end portion of the attachment portion 4 is locked by the notch 21A so that the degree of insertion of the attachment portion 4 into the grip portion 2 can be regulated. In addition, a plurality of locking portions are formed at the edge in the short direction of the upper gripping portion 21 (upper gripping portion main body 212), and the upper gripping portion 21 is gripped by the plurality of locking portions. Locked with the portion 22.

下側把持部２２は、下側把持部本体２２２が滑り止めカバー２２１に覆われて形成されている。なお、例えば、下側把持部本体２２２は、例えばＡＢＳ樹脂等の樹脂製であり、滑滑り止めカバー２２１は、エラストマー等のゴム製である。下側把持部本体２２２の内側には、補強のための横リブ及び縦リブが複数形成されている。また、下側把持部本体２２２の内側には、一端側（左端側）に挿入空間２２２２が形成されており、上側把持部２１と下側把持部２２とを組み合わせたときに、この挿入空間２２２２と上側把持部本体２１２の挿入空間２１１０とが合わさって、把持部２の左側に開口する挿入孔２Ａが形成され、この開口から鋸刃３の根元と取付け部４とが挿入されるようになっている。なお、挿入空間２２２２の右縁の方が、挿入空間２１１０の右縁よりも右方に形成されており、挿入空間２２２２の右縁部分の下側の位置であって、下側把持部本体２２２の内側に、図５（ｂ）で示すように、鋸刃係止用突起２２２３が形成されている。鋸刃係止用突起２２２３が鋸刃３の根元に形成された切欠き３２内に嵌ることで鋸刃３の根元を係止する。これによって、鋸刃３の根元が鋸刃係止用突起２２２３より右側に挿入されることが防止される。 The lower grip portion 22 is formed by covering the lower grip portion main body 222 with a non-slip cover 221. For example, the lower gripping part main body 222 is made of a resin such as ABS resin, and the anti-slip cover 221 is made of rubber such as an elastomer. A plurality of horizontal ribs and vertical ribs for reinforcement are formed inside the lower gripping part main body 222. Further, an insertion space 2222 is formed on one end side (left end side) inside the lower gripping portion main body 222, and when the upper gripping portion 21 and the lower gripping portion 22 are combined, this insertion space 2222 is formed. And the insertion space 2110 of the upper gripping part body 212 are combined to form an insertion hole 2A that opens to the left side of the gripping part 2, and the root of the saw blade 3 and the attachment part 4 are inserted through this opening. ing. Note that the right edge of the insertion space 2222 is formed to the right of the right edge of the insertion space 2110, and is a position below the right edge portion of the insertion space 2222, and the lower gripping part main body 222. As shown in FIG. 5B, a saw blade locking projection 2223 is formed on the inner side of FIG. The saw blade locking protrusion 2223 is fitted into a notch 32 formed at the root of the saw blade 3 to lock the root of the saw blade 3. This prevents the root of the saw blade 3 from being inserted to the right of the saw blade locking protrusion 2223.

下側把持部本体２２２には、挿入孔２Ａ（挿入空間２２２２）の内面に開口する平面視で四角形状の取付け用孔２２２１が形成されている。この取付け用孔２２２１には、後述する取付け部４の嵌合部４２が鋸刃３の貫通孔３１に挿通した状態で嵌め入れられ、これによって、鋸刃３が把持部２に固定される。 The lower gripping part main body 222 is formed with a mounting hole 2221 having a rectangular shape in a plan view that opens on the inner surface of the insertion hole 2A (insertion space 2222). In this mounting hole 2221, a fitting portion 42 of the mounting portion 4 to be described later is fitted into the through hole 31 of the saw blade 3, whereby the saw blade 3 is fixed to the grip portion 2.

取付け用孔２２２１は有底孔であり、下側把持部２２（下側把持部本体２２２と滑り止めカバー２２１）におけるこの有底孔の底部には、上下方向の貫通孔２２０が嵌合解除機構として形成されている。貫通孔２２０は、下側把持部本体２２２に形成された貫通孔２２０１と滑り止めカバー２２１に形成された貫通孔２２０１Ａとからなる。貫通孔２２０１は、その内面が下に向かう程内側に傾斜するように形成され、内側の開口面積より外側の開口面積が狭くなっている。また、貫通孔２２０１Ａの外側の開口面積は、貫通孔２２０１の外側の開口面積よりも広くなっている。貫通孔２２０１内に外側から内側に向かって、針やピン等の押し出し部材を挿入することで、嵌合部４２を取付け用孔２２２１から押し出して、嵌合部４２と取付け用孔２２２１との嵌合が解除され、貫通孔２２０は、嵌合部４２と取付け用孔２２２１との嵌合を解除するための嵌合解除機構として機能する。 The mounting hole 2221 is a bottomed hole, and a vertical through hole 220 is fitted to the bottom of the bottomed hole in the lower gripping part 22 (the lower gripping part main body 222 and the non-slip cover 221). It is formed as. The through hole 220 includes a through hole 2201 formed in the lower gripping part main body 222 and a through hole 2201 A formed in the anti-slip cover 221. The through hole 2201 is formed so as to be inclined inward as the inner surface thereof is directed downward, and the outer opening area is narrower than the inner opening area. The opening area outside the through hole 2201A is wider than the opening area outside the through hole 2201. By inserting an extruding member such as a needle or a pin into the through-hole 2201 from the outside to the inside, the fitting portion 42 is pushed out from the attachment hole 2221 so that the fitting portion 42 and the attachment hole 2221 are fitted. The through hole 220 functions as a fitting release mechanism for releasing the fitting between the fitting portion 42 and the mounting hole 2221.

上記構成によれば、嵌合部４２を取付け用孔４２２１の反対側に押し出す直線的な操作によって、鋸刃３の把持部２に対する取り外しを行うことができる。これによって、この取り外しに要求される操作が容易になる。また、貫通孔２２０を形成するだけの簡易な構造で嵌合解除機構を形成することができる。 According to the above configuration, the saw blade 3 can be detached from the grip portion 2 by a linear operation of pushing the fitting portion 42 to the opposite side of the mounting hole 4221. This facilitates the operation required for this removal. In addition, the fitting release mechanism can be formed with a simple structure that only forms the through hole 220.

下側把持部２２（下側把持部本体２２２）の短手方向の縁において、複数個の係止部が形成されており、この複数個の係止部が上側把持部２１の係止部と係止することによって、下側把持部２２は上側把持部２１と係止されて組み合わされることで、把持部２が構成される。 A plurality of locking portions are formed at the edge in the short direction of the lower gripping portion 22 (lower gripping portion main body 222), and the plurality of locking portions are connected to the locking portion of the upper gripping portion 21. By locking, the lower gripping portion 22 is locked and combined with the upper gripping portion 21 to form the gripping portion 2.

把持部２の右端には、上下方向に貫通する孔が形成されており、この孔等に紐等を通すことができるようになっている。 A hole penetrating in the vertical direction is formed at the right end of the grip portion 2, and a string or the like can be passed through the hole.

（鋸の構成：取付け部４）
取付け部４は、樹脂製の部材であり、図６で示すように、取付け部本体４Ａと、この取付け部本体４Ａから鋸刃３方向に突出度合が可変になるように突出する嵌合部４２とを有する。図６で示すように、取付け部本体４Ａは、ユーザに押圧可能に形成された操作部４３と、操作部４３から右方向に延びて、中央に貫通孔４１Ａが形成された板状の支持部４１とを備える。 (Saw configuration: mounting part 4)
The attachment portion 4 is a resin member. As shown in FIG. 6, the attachment portion main body 4A and the fitting portion 42 that protrudes from the attachment portion main body 4A so that the protrusion degree is variable in the saw blade 3 direction. And have. As shown in FIG. 6, the attachment portion main body 4 A includes an operation portion 43 that can be pressed by the user, and a plate-like support portion that extends rightward from the operation portion 43 and has a through hole 41 A formed in the center. 41.

（鋸の構成：取付け部４：嵌合部４２）
嵌合部４２は、支持部４１における貫通孔４１Ａの右縁（取付け部本体４Ａ）に延設されてこの右縁から斜め左下方向に延びる可撓性を有する板状の突出片４２１と、この突出片４２１の下端に設けられた突出部位４２２とを有する。突出部位４２２は、突出片４２１の下端から下方に延設されて形成された底面が四角形状の部位であり、この底面部の縦横寸法が鋸刃３の貫通孔３１及び把持部２の取付け用孔２２２１の縦横寸法に合致するように形成されている。これによって、取付け部４の挿入孔２Ａへの挿入によって、挿入孔２Ａの内面で突出部位４２２を押圧させて、突出片４２１を撓ませて、突出部位４２２が取付け用孔２２２１の位置に到達するまで取付け部４を挿入孔２Ａに挿入させ、突出部位４２２が取付け用孔２２２１の位置に到達したときに、突出片４２１の撓みが解除されて突出部位４２２が貫通孔３１及び取り付け用孔２２２１に嵌め入れられる。同様に、突出片４２１を撓ませて突出部位４２２を取付け用孔２２２１から外し、挿入孔２Ａから取付け部４を取り外すことができる。これによって、簡易な構成で、突出部位４２２を取付け用孔２２２１に着脱可能にすることができる。 (Saw configuration: mounting portion 4: fitting portion 42)
The fitting portion 42 includes a plate-like projecting piece 421 having flexibility and extending from the right edge to the lower left side of the through-hole 41A in the support portion 41 and extending obliquely downward from the right edge. And a projecting portion 422 provided at the lower end of the projecting piece 421. The protruding portion 422 is a portion whose bottom surface formed by extending downward from the lower end of the protruding piece 421 is a quadrangular portion, and the vertical and horizontal dimensions of the bottom surface portion are for mounting the through hole 31 of the saw blade 3 and the grip portion 2. It is formed so as to match the vertical and horizontal dimensions of the hole 2221. As a result, by inserting the mounting portion 4 into the insertion hole 2A, the protruding portion 422 is pressed on the inner surface of the insertion hole 2A, the protruding piece 421 is bent, and the protruding portion 422 reaches the position of the mounting hole 2221. Until the protruding portion 422 reaches the position of the mounting hole 2221, the bending of the protruding piece 421 is released and the protruding portion 422 becomes the through hole 31 and the mounting hole 2221. It is inserted. Similarly, the protruding piece 421 can be bent to remove the protruding portion 422 from the mounting hole 2221, and the mounting portion 4 can be removed from the insertion hole 2A. Accordingly, the protruding portion 422 can be attached to and detached from the mounting hole 2221 with a simple configuration.

また、突出片４２１は、その根元が断面視でＵ字状に屈曲されている。これによって、突出片４２１を撓ませて突出部位４２２を取付け用孔２２２１から外し易くなり、鋸刃３の取り外しが容易になる。また、突出片４２１の平坦部位と水平面との間の角度（左側の角度）は、１０度以上２５度未満（本実施形態では、１６度）になっており、これによって、鋸１が固い対象物を切る動作（前後方向の動作）をしても、鋸刃３が把持部２から抜けにくく、かつ、鋸刃３の把持部２からの取り外しも円滑に行うことができる。 Further, the base of the protruding piece 421 is bent in a U shape in a sectional view. As a result, the protruding piece 421 is bent to easily remove the protruding portion 422 from the mounting hole 2221, and the saw blade 3 can be easily detached. The angle between the flat portion of the protruding piece 421 and the horizontal plane (left side angle) is 10 degrees or more and less than 25 degrees (16 degrees in the present embodiment). Even when an operation for cutting an object (an operation in the front-rear direction) is performed, the saw blade 3 is difficult to be removed from the grip portion 2, and the saw blade 3 can be removed from the grip portion 2 smoothly.

（鋸の構成：取付け部４：取付け部本体４Ａ）
取付け部本体４Ａの支持部４１は、その右下部において下方に延設された支持台４１１が形成されている。支持台４１１は、嵌合部４２の突出部位４２２が貫通孔３１及び把持部２の取付け用孔２２２１に嵌った状態で、鋸刃３の上面に当接するようになっている。 (Saw configuration: mounting portion 4: mounting portion body 4A)
The support portion 41 of the attachment portion main body 4A is formed with a support base 411 extending downward at the lower right portion thereof. The support base 411 comes into contact with the upper surface of the saw blade 3 in a state where the protruding portion 422 of the fitting portion 42 is fitted in the through hole 31 and the mounting hole 2221 of the grip portion 2.

操作部４３は、周縁が下方に突出するように形成された円板の上面中央に、円柱４３１が形成された形状を有する。この円柱４３１の右側部分の面が、把持部２における上側把持部２１に形成された切欠き２１Ａの切欠き面に当接することで、この当接位置より右方への取付け部４の挿入孔２Ａへの挿入が規制される。 The operation unit 43 has a shape in which a cylinder 431 is formed at the center of the upper surface of a disk formed so that the peripheral edge protrudes downward. The right side surface of the cylinder 431 is in contact with the notch surface of the notch 21A formed in the upper gripping portion 21 of the gripping portion 2, so that the insertion hole of the mounting portion 4 to the right from the abutting position. Insertion into 2A is restricted.

そして、操作部４３は、その円板の下面中央から延設されて、下方に突出する円筒４３３が形成されており、この円筒４３３内に例えばバネ等の付勢手段４３４が嵌め入れられる。この付勢手段４３４は、その上端が操作部４３の円板の下面に当接され、下端が鋸刃３の上面に当接される。これによって、操作部４３は、鋸刃３に面する部位に、鋸刃３と反対方向に操作部４３を付勢する付勢手段４３４を有することとなる。操作部４３における円柱４３１の左方に（操作部４３の前記鋸刃３に面する部位の反対面側に）、上方に突出する突起４３２が形成されており、突起４３２が鞘５の縁と係合可能になっている。操作部４３の円柱４３１の上面がユーザの指等で押圧されると、操作部４３が下方向に移動して、突起４３２と鞘５の縁との係合が解除され、この指等の押圧が解除されると、操作部４３が付勢手段４３４の付勢力によって上方向に移動して、突起４３２と鞘５の縁とが係合される。この様に、取付け部４を、鋸刃３を把持部２に取り付ける構成としてだけでなく、鞘５を把持部２に固定する構成としても利用することで、別に鞘５を把持部２に固定する構成を設ける必要がなくなり、鋸１の構造がより簡易なものとなる。 The operation unit 43 is formed with a cylinder 433 extending from the center of the lower surface of the disk and projecting downward. A biasing means 434 such as a spring is fitted into the cylinder 433. The urging means 434 has an upper end in contact with the lower surface of the disk of the operation unit 43 and a lower end in contact with the upper surface of the saw blade 3. Accordingly, the operation unit 43 has a biasing means 434 that biases the operation unit 43 in a direction opposite to the saw blade 3 at a portion facing the saw blade 3. A protrusion 432 protruding upward is formed on the left side of the cylinder 431 in the operation portion 43 (on the opposite side of the portion facing the saw blade 3 of the operation portion 43), and the protrusion 432 is connected to the edge of the sheath 5. Engageable. When the upper surface of the column 431 of the operation unit 43 is pressed by a user's finger or the like, the operation unit 43 moves downward, and the engagement between the protrusion 432 and the edge of the sheath 5 is released, and the finger or the like is pressed. When is released, the operating portion 43 is moved upward by the urging force of the urging means 434, and the protrusion 432 and the edge of the sheath 5 are engaged. In this way, the sheath 5 is separately fixed to the grip portion 2 by using the mounting portion 4 not only as a configuration for attaching the saw blade 3 to the grip portion 2 but also as a configuration for fixing the sheath 5 to the grip portion 2. Therefore, the structure of the saw 1 is simpler.

なお、操作部４３の下縁の上下方向における位置は、支持部４１の支持台４１１の下縁上下方向における位置と同じかそれ以上であることが好ましい。これによって、操作部４３の押圧操作が好適に行うことができる。 In addition, it is preferable that the position in the vertical direction of the lower edge of the operation unit 43 is equal to or higher than the position in the vertical direction of the lower edge of the support base 411 of the support unit 41. Thereby, the pressing operation of the operation unit 43 can be suitably performed.

（鋸の構成：鞘５）
図１、図５（ａ）及び図６で示すように、鞘５は、右端に開口する孔が形成されており、この孔に鋸刃３の把持部２からの突出部分を挿入させることで鋸刃３の突出部分を覆う。鞘５は、上側鞘部５１と下側鞘部５２とを上下方向から組み合わせて固定されてなる。上側鞘部５１と下側鞘部５２は例えば樹脂製であり、上側鞘部５１と下側鞘部５２との内側には、複数の補強リブが形成されている。上側鞘部５１の右端部分には、平面視で半円状の切欠き５Ａが形成されており、この切欠き５Ａの縁には、係止用突起５１７が形成されている。操作部４３の円柱４３１がユーザの指等で鋸刃３方向に押圧された状態で、鞘５が鋸刃３に取り付けられると、鞘５の切欠き５Ａの縁面に、取付け部４の円柱４３１の左側部分の面が当接する。この当接状態で、円柱４３１の押圧を解除すると、係止用突起５１７と取付け部４における突起４３２とが係合することで、鞘５が把持部２に固定されるようになっている。 (Saw configuration: sheath 5)
As shown in FIG. 1, FIG. 5 (a) and FIG. 6, the sheath 5 is formed with a hole opening at the right end, and a protruding portion from the grip portion 2 of the saw blade 3 is inserted into this hole. The protruding part of the saw blade 3 is covered. The sheath 5 is formed by combining an upper sheath portion 51 and a lower sheath portion 52 from above and below. The upper sheath portion 51 and the lower sheath portion 52 are made of, for example, resin, and a plurality of reinforcing ribs are formed inside the upper sheath portion 51 and the lower sheath portion 52. A semicircular cutout 5A is formed on the right end portion of the upper sheath 51 in a plan view, and a locking projection 517 is formed on the edge of the cutout 5A. When the sheath 5 is attached to the saw blade 3 in a state where the cylinder 431 of the operation portion 43 is pressed in the direction of the saw blade 3 by a user's finger or the like, the cylinder of the attachment portion 4 is attached to the edge surface of the notch 5A of the sheath 5. The surface of the left side portion of 431 contacts. When the pressing of the cylinder 431 is released in this contact state, the locking projection 517 and the projection 432 in the attachment portion 4 are engaged, whereby the sheath 5 is fixed to the grip portion 2.

（鋸の組み立て方法）
以下に、図５及び図６を用いて、鋸１の組み立て方法を説明する。上側鞘部５１と下側鞘部５２とを組み合わせて固定して、鞘５を形成する。そして、上側把持部本体２１２と下側把持部本体２２２とをその短手方向の縁で係合させて組み合わせる。更に、上側把持部本体２１２の表面（上面）に滑り止めカバー２１１を取り付け、下側把持部本体２２２の表面（下面）に滑り止めカバー２２１を取り付けて、把持部２を形成する。そして、後述する、鋸刃３の把持部２への取り付け方法によって、鋸刃３を把持部２へ取り付ける。その後に、取付け部４の円柱４３１の上面を指等で押圧しながら、鞘５を鋸刃３に取り付け、取付けが終わったら、円柱４３１の押圧を解除して、鞘５を取付け部４によって把持部２に固定する。 (How to assemble the saw)
Below, the assembly method of the saw 1 is demonstrated using FIG.5 and FIG.6. The upper sheath 51 and the lower sheath 52 are combined and fixed to form the sheath 5. Then, the upper gripping part main body 212 and the lower gripping part main body 222 are engaged with each other at the edge in the short direction and combined. Further, the grip part 2 is formed by attaching the anti-slip cover 211 to the surface (upper surface) of the upper gripping part main body 212 and attaching the anti-slip cover 221 to the surface (lower surface) of the lower gripping part main body 222. Then, the saw blade 3 is attached to the grip portion 2 by a method for attaching the saw blade 3 to the grip portion 2 described later. Thereafter, the sheath 5 is attached to the saw blade 3 while pressing the upper surface of the cylinder 431 of the attachment portion 4 with a finger or the like. When the attachment is completed, the pressure of the cylinder 431 is released and the sheath 5 is gripped by the attachment portion 4. Fix to part 2.

（鋸刃の把持部への取り付け方法）
以下に、図７を用いて、鋸刃３の把持部２に対する取り付け方法を説明する。図７は、鋸刃３の把持部２に対する取り付け方法を示す図である。図７（ａ）で示すように、鋸刃３の根元を挿入孔２Ａに挿入する。次に、図７（ｂ）で示すように、取付け部４の嵌合部４２における突出部位４２２を刃物３の貫通孔３１に内に上方から嵌め入れる。そして、取付け部４と鋸刃３とを重ねた状態で、挿入孔２Ａに更に挿入する。このときには、挿入孔２Ａの内面に押圧されて突出片４２１が撓み、支持部４１の貫通孔４１Ａ内に突出部位４２２が嵌り込む。これによって、嵌合部４２の突出度合いが、取付け部４の挿入孔２Ａへの挿入を妨げない程度になり、取付け部４の支持部４１と嵌合部４２とが挿入孔２Ａに挿入できるようになっている。 (How to attach the saw blade to the grip)
Below, the attachment method with respect to the holding part 2 of the saw blade 3 is demonstrated using FIG. FIG. 7 is a diagram illustrating a method for attaching the saw blade 3 to the grip portion 2. As shown in FIG. 7A, the root of the saw blade 3 is inserted into the insertion hole 2A. Next, as shown in FIG. 7B, the protruding portion 422 in the fitting portion 42 of the attachment portion 4 is fitted into the through hole 31 of the blade 3 from above. And it inserts further in 2A of insertion holes in the state in which the attachment part 4 and the saw blade 3 were piled up. At this time, the protruding piece 421 is bent by being pressed by the inner surface of the insertion hole 2 A, and the protruding portion 422 is fitted into the through hole 41 A of the support portion 41. As a result, the degree of protrusion of the fitting portion 42 is such that the insertion of the attachment portion 4 into the insertion hole 2A is not hindered, so that the support portion 41 and the fitting portion 42 of the attachment portion 4 can be inserted into the insertion hole 2A. It has become.

そして、図７（ｃ）で示すように、挿入空間２２２２の右縁まで挿入されて、鋸刃３の根元に形成された切欠き３２内に、鋸刃係止用突起２２２３が嵌るまで、鋸刃３の根元は挿入される。この状態では、鋸刃３の貫通孔３１と取付け部４の嵌合部４２（突出部位４２２）が、把持部２の取付け用孔２２２１に重なった状態になり、これによって、取付け部４の突出部位４２２は、挿入孔２Ａの内面に押圧されなくなる。このため、嵌合部４２の突出度合いは、挿入孔２Ａの内面に押圧されていたときより、大きくなる。この状態では、取付け部４の嵌合部４２（突出部位４２２）が鋸刃３の貫通孔３１に挿通され、かつ、取付け部４における貫通孔３１からの突出部位４２２が把持部２の挿入孔２Ａに形成された取付け用孔２２２１に嵌って、取付け部４によって鋸刃３が把持部２に取り付けられる。この様に、把持部２の挿入孔２Ａ内に鋸刃３と取付け部４とを挿入するだけで、鋸刃３が把持部２に取り付けられ、鋸刃３の把持部２に対する取り付けを容易に行うことができる。また、取付け部４の嵌合部４２（突出部位４２２）を、鋸刃３の貫通孔３１と把持部２の取付け用孔２２２１とに嵌合させるだけの簡易な構成で、鋸刃３を把持部２に取り付けることができるため、鋸刃３の把持部２に対する取付け構造が簡易になる。 7C until the right edge of the insertion space 2222 is inserted and the saw blade locking projection 2223 fits into the notch 32 formed at the base of the saw blade 3. The root of the blade 3 is inserted. In this state, the through-hole 31 of the saw blade 3 and the fitting part 42 (projection part 422) of the attachment part 4 are overlapped with the attachment hole 2221 of the grip part 2, thereby causing the protrusion of the attachment part 4. The part 422 is not pressed against the inner surface of the insertion hole 2A. For this reason, the protrusion degree of the fitting part 42 becomes larger than when pressed against the inner surface of the insertion hole 2A. In this state, the fitting portion 42 (protruding portion 422) of the attachment portion 4 is inserted into the through hole 31 of the saw blade 3, and the protruding portion 422 from the through hole 31 in the attachment portion 4 is the insertion hole of the grip portion 2. The saw blade 3 is attached to the grip portion 2 by the attachment portion 4 by fitting into the attachment hole 2221 formed in 2A. In this way, simply by inserting the saw blade 3 and the attachment portion 4 into the insertion hole 2A of the grip portion 2, the saw blade 3 is attached to the grip portion 2, and the saw blade 3 can be easily attached to the grip portion 2. It can be carried out. In addition, the saw blade 3 is gripped with a simple configuration in which the fitting portion 42 (projecting portion 422) of the mounting portion 4 is simply fitted into the through hole 31 of the saw blade 3 and the mounting hole 2221 of the grip portion 2. Since it can attach to the part 2, the attachment structure with respect to the holding part 2 of the saw blade 3 becomes simple.

（鋸刃の把持部からの取り外し方法）
以下に、図８を用いて、鋸刃３の把持部２に対する取り外し方法を説明する。図８は、鋸刃の把持部からの取り外し方法を示す図である。図８（ａ）で示すように、貫通孔２２０内に外側から内側に向かって、針等の押し出し部材を挿入する。これによって、嵌合部４２（突出部位４２２）を取付け用孔２２２１から押し出して、嵌合部４２（突出部位４２２）と取付け用孔２２２１との嵌合が解除される。この解除状態で、図８（ｂ）で示すように、取付け部４と鋸刃３とを挿入孔２Ａから引き出していき、図８（ｃ）で示すように、取付け部４と鋸刃３を挿入孔２Ａから完全に引き出して、鋸刃３を把持部２から取り外す。なお、把持部２に対して、新しい鋸刃３を取り付ける場合には、図７を用いて上述した方法が用いられる。 (How to remove the saw blade from the grip)
Below, the removal method with respect to the holding part 2 of the saw blade 3 is demonstrated using FIG. FIG. 8 is a diagram illustrating a method of removing the saw blade from the gripping portion. As shown in FIG. 8A, a pushing member such as a needle is inserted into the through hole 220 from the outside to the inside. As a result, the fitting part 42 (projecting part 422) is pushed out from the mounting hole 2221, and the fitting between the fitting part 42 (projecting part 422) and the mounting hole 2221 is released. In this released state, the attachment portion 4 and the saw blade 3 are pulled out from the insertion hole 2A as shown in FIG. 8B, and the attachment portion 4 and the saw blade 3 are moved as shown in FIG. The saw blade 3 is removed from the grip portion 2 by completely pulling out from the insertion hole 2A. In addition, when attaching the new saw blade 3 with respect to the holding part 2, the method mentioned above using FIG. 7 is used.

上述した本実施形態の構成によれば、取付け部４が把持部２の挿入孔２Ａに挿入されると、取付け部４の嵌合部４２が挿入孔２Ａの内面に押圧されて、この嵌合部４２の突出度合いが、取付け部４の挿入孔２Ａへの挿入を妨げない程度になる。そして、鋸刃３と取付け部４が把持部２の挿入孔２Ａに挿入された状態において、鋸刃３の貫通孔３１と把持部２の取付け用孔２２２１と取付け部４の嵌合部４２とが重なった状態になると、取付け部４の嵌合部４２は、挿入孔２Ａの内面に押圧されなくなる。このため、嵌合部４２の突出度合いは、挿入孔２Ａの内面に押圧されていたときより、突出度合が大きくなる。この状態では、取付け部４の嵌合部４２が鋸刃３の貫通孔３１に挿通され、かつ、取付け部４における貫通孔３１からの突出部位４２２が把持部２の挿入孔２Ａに形成された取付け用孔２２２１に嵌ることで、取付け部４によって鋸刃３が把持部２に取り付けられる。これによって、把持部２の挿入孔２Ａ内に鋸刃３と取付け部４とを挿入するだけで、鋸刃３が把持部２に取り付けられ、鋸刃３の把持部２に対する取り付けを容易に行うことができる。また、取付け部４の嵌合部４２を、鋸刃３の貫通孔３１と把持部２の取付け用孔２２２１とに嵌合させるだけの簡易な構成で、鋸刃３を把持部２に取り付けることができるため、鋸刃３の把持部２に対する取付け構造が簡易になる。 According to the configuration of the present embodiment described above, when the attachment portion 4 is inserted into the insertion hole 2A of the grip portion 2, the fitting portion 42 of the attachment portion 4 is pressed against the inner surface of the insertion hole 2A. The degree of protrusion of the portion 42 is such that the insertion of the attachment portion 4 into the insertion hole 2A is not hindered. In a state where the saw blade 3 and the attachment portion 4 are inserted into the insertion hole 2A of the grip portion 2, the through hole 31 of the saw blade 3, the attachment hole 2221 of the grip portion 2, and the fitting portion 42 of the attachment portion 4 When they are overlapped, the fitting portion 42 of the attachment portion 4 is not pressed against the inner surface of the insertion hole 2A. For this reason, the protrusion degree of the fitting part 42 becomes larger than when it is pressed against the inner surface of the insertion hole 2A. In this state, the fitting portion 42 of the attachment portion 4 is inserted into the through hole 31 of the saw blade 3, and the protruding portion 422 of the attachment portion 4 from the through hole 31 is formed in the insertion hole 2 A of the grip portion 2. The saw blade 3 is attached to the grip portion 2 by the attachment portion 4 by being fitted into the attachment hole 2221. As a result, the saw blade 3 is attached to the grip portion 2 simply by inserting the saw blade 3 and the attachment portion 4 into the insertion hole 2A of the grip portion 2, and the saw blade 3 can be easily attached to the grip portion 2. be able to. Further, the saw blade 3 is attached to the grip portion 2 with a simple configuration in which the fitting portion 42 of the attachment portion 4 is simply fitted into the through hole 31 of the saw blade 3 and the mounting hole 2221 of the grip portion 2. Therefore, the attachment structure of the saw blade 3 to the grip portion 2 is simplified.

（変形例）
（１）本実施形態では、貫通孔２２０が、嵌合部４２（突出部位４２２）と取付け用孔２２２１との嵌合を解除するための嵌合解除機構があるが、嵌合解除機構は貫通孔２２０でなくてもよい。嵌合解除機構は、取付け部４の嵌合部４２（突出部位４２２）を把持部２の取付け用孔２２２１から押し出して、嵌合部４２（突出部位４２２）と取付け用孔２２２１との嵌合を解除することが出来れば如何なる機構を採用してもよい。例えば、把持部２における取付け用孔２２２１の下方に、操作ボタンを配置し、この操作ボタンの押圧によって操作ボタンの根元を取付け用孔２２２１内に突出させて、嵌合部４２（突出部位４２２）を把持部２の取付け用孔２２２１から押し出してもよい。 (Modification)
(1) In the present embodiment, the through-hole 220 has a fitting release mechanism for releasing the fitting between the fitting portion 42 (projecting portion 422) and the mounting hole 2221. The hole 220 may not be. The fitting release mechanism pushes the fitting part 42 (protruding part 422) of the attaching part 4 from the attaching hole 2221 of the grip part 2, and the fitting part 42 (protruding part 422) and the attaching hole 2221 are fitted. Any mechanism may be adopted as long as it can be released. For example, an operation button is arranged below the mounting hole 2221 in the grip portion 2, and the base of the operation button protrudes into the mounting hole 2221 by pressing the operation button, so that the fitting portion 42 (protruding portion 422). May be pushed out from the mounting hole 2221 of the grip portion 2.

（２）本実施形態では、突出片４２１は、取付け部本体４Ａから斜め左下方向に延びるように形成されているが、図９で示すように、嵌合部４２´において、下端に突出部位４２２´を有する突出片４２１´が取付け部本体４Ａから斜め右下方向に延びるように形成されてもよい。突出片４２１は、取付け部本体４Ａから斜め下方向に延びるように形成されていれば、どのように形成されていてもよい。 (2) In the present embodiment, the protruding piece 421 is formed so as to extend obliquely lower left from the mounting portion main body 4A. However, as shown in FIG. May be formed so as to extend obliquely downward to the right from the mounting portion main body 4A. The protruding piece 421 may be formed in any manner as long as it is formed to extend obliquely downward from the attachment portion main body 4A.

（３）本実施形態では、突出片４２１を撓ませることで、嵌合部４２（突出部位４２２）の鋸刃３方向への突出度合を可変としているが、突出片４２１を用いずに嵌合部（突出部位４２２）の鋸刃３方向への突出度合を可変としてもよい。例えば、取付け部本体４Ａの下方にバネ等の一端が取り付けられ、このバネ等の他端が突出部位４２２に取り付けられることで、嵌合部（突出部位４２２）の突出度合を可変としてもよい。 (3) In this embodiment, the degree of protrusion of the fitting portion 42 (protruding part 422) in the direction of the saw blade 3 is variable by bending the protruding piece 421, but fitting without using the protruding piece 421. The degree of protrusion of the portion (protruding portion 422) in the direction of the saw blade 3 may be variable. For example, one end of a spring or the like is attached below the attachment portion main body 4A, and the other end of the spring or the like is attached to the protruding portion 422, so that the protrusion degree of the fitting portion (the protruding portion 422) may be variable.

（４）また、図１０及び図１１で示すように、嵌合部４２´´において、突出部位４２２´´の底面における左端に、下方に延びる爪４２３が形成されていてもよい。この爪４２３は、突出部位４２２´´の底面の左縁において、前後方向に亘って形成されており、この前後方向の中央に切欠きを有する。この様に、突出部位４２２´の底面左縁に爪４２３が形成されていることで、爪４２３が取付け用孔２２２１の左上縁に引っ掛かり、ユーザの意思に反して（ユーザが把持部２から鋸刃３を取り外す操作をしていないにもかかわらず）、突出部位４２２´´が取り付け用孔２２２１´から外れることが防止される。
爪４２３は、左右方向に沿って垂直に切断する断面が、三角形であり、三角形の一つの頂点が下端となっている。なお、この三角形のうち、左側の辺よりも右側の辺の方の傾斜度合いが大きくなっている。図１１で示すように、左側の辺と水平面（三角形の下端に接する水平面）との間の左側の角度は５０度以上７０度未満となっており（本実施形態では６０度）、右側の辺と水平面（三角形の下端に接する水平面）との間の右側の角度は３０度以上５０度未満となっている（本実施形態では４５度）。この様な角度に形成されることで、鋸刃３の把持部２への着脱時には、爪４２３が引っ掛かることなく、突出部４２２´を取り付け用孔２２２１´に嵌め入れ、取り外しすることができ、また、挿入孔２Ａ内に挿入、取り外しすることができる。
なお、把持部３の取り付け用孔２２２１´内には、補強のために、平面視において十字状のリブ２２２１´´が形成されているが、上述したように、爪４２３に切り欠きが形成されているため、爪４２３がリブ２２２１´´に当たることなく、突出部位４２２´を取り付け用孔２２２１´に嵌め入れることができる。 (4) Moreover, as shown in FIG.10 and FIG.11, the nail | claw 423 extended below may be formed in the fitting part 42 '' at the left end in the bottom face of protrusion part 422 ''. The claw 423 is formed in the front-rear direction at the left edge of the bottom surface of the projecting portion 422 ″, and has a notch in the center in the front-rear direction. In this way, the claw 423 is formed on the left edge of the bottom surface of the projecting portion 422 ′, so that the claw 423 is caught on the upper left edge of the mounting hole 2221 and the user does not want to cut the saw 2 from the grip portion 2. Even though the blade 3 is not removed, the protruding portion 422 ″ is prevented from being detached from the mounting hole 2221 ′.
The claw 423 has a triangular cross section cut vertically along the left-right direction, and one apex of the triangle is the lower end. In this triangle, the degree of inclination of the right side is larger than that of the left side. As shown in FIG. 11, the angle on the left side between the left side and the horizontal plane (the horizontal plane in contact with the lower end of the triangle) is not less than 50 degrees and less than 70 degrees (60 degrees in this embodiment), and the right side And the horizontal plane (the horizontal plane in contact with the lower end of the triangle) is 30 degrees or more and less than 50 degrees (45 degrees in this embodiment). By being formed at such an angle, when the saw blade 3 is attached to and detached from the grip portion 2, the protrusion 422 'can be fitted into the attachment hole 2221' without being caught by the hook 423, and can be removed. Further, it can be inserted into and removed from the insertion hole 2A.
In addition, in the mounting hole 2221 ′ of the grip portion 3, a cross-shaped rib 2221 ″ is formed in a plan view for reinforcement, but as described above, a notch is formed in the claw 423. Therefore, the protruding portion 422 ′ can be fitted into the mounting hole 2221 ′ without the claw 423 hitting the rib 2221 ″.

（５）また、図１０で示すように、突出片４２１´´の根元がＵ字状に形成されておらず、平坦であってもよい。本実施形態では、突出片４２１の根元がＵ字状に形成されていることで、突出片４２１を撓ませて突出部位４２２を取り付け用孔２２２１から抜けやすくして、鋸刃３の取り外しを容易にすることができるという利点があるが、図１０で示す変形例では、突出片４２１´´の根元がＵ字状に形成されていないことで、ユーザが鋸刃３を取り外す操作をしていないにもかかわらず、突出片４２１´´が撓んで突出部位４２２´´が取り付け用孔２２２１´から抜けてしまうことが防止されるという利点がある。鋸１は、金属、木材等の硬質な対象物を前後方向の動作で切る手動利器であるため、鋸刃３を挿入孔２から引き出す強い力がかかる。このため、鋸１においては、切断する対象物によっては、本変形例のように、突出片４２１の根元がＵ字状に形成せず、平坦にすることが好ましい場合がある。 (5) Moreover, as shown in FIG. 10, the base of the protruding piece 421 ″ is not formed in a U shape, and may be flat. In the present embodiment, since the base of the protruding piece 421 is formed in a U shape, the protruding piece 421 is bent to easily remove the protruding portion 422 from the mounting hole 2221, and the saw blade 3 can be easily removed. In the modified example shown in FIG. 10, the root of the protruding piece 421 ″ is not formed in a U shape, so that the user does not perform an operation of removing the saw blade 3. Nevertheless, there is an advantage that the protruding piece 421 ″ is bent and the protruding portion 422 ″ is prevented from coming out of the mounting hole 2221 ′. Since the saw 1 is a manual instrument that cuts a hard object such as metal or wood by a back-and-forth movement, a strong force is applied to pull out the saw blade 3 from the insertion hole 2. For this reason, in the saw 1, depending on the object to be cut, it may be preferable that the base of the protruding piece 421 is not formed in a U-shape and is flat as in the present modification.

（６）本実施形態では、本発明に係る手動利器を鋸１に適用しているが、本発明は鋸１に限定されず、他の手動利器に適用してもよい。機能部を把持部に取り付ける構成を備える手動利器であれば、如何なる手動利器であっても本発明を適用することができる。手動利器とは、例えば、鋸、包丁、ナイフ、剃刀、彫刻刀等の刃（機能部）を有する手動器具が広く含まれるとともに、ねじ部（機能部）を有するねじ回し等の手動工具や、スプーン、フォーク等の刃を有さない手動器具も含む。 (6) In the present embodiment, the manual instrument according to the present invention is applied to the saw 1, but the present invention is not limited to the saw 1 and may be applied to other manual instruments. The present invention can be applied to any manual instrument as long as it is configured to attach the functional unit to the gripping unit. Manual instruments include, for example, manual tools such as saws, knives, knives, razors, engraving swords, etc., and manual tools such as screwdrivers having screw parts (functional parts), This includes manual instruments that do not have blades such as spoons and forks.

１鋸（手動利器の一例）
２把持部
２２０貫通孔（嵌合解除機構の一例）
２２２１取付け用孔
２Ａ挿入孔
３鋸刃（機能部の一例）
３１貫通孔
４取付け部
４２嵌合部
４２１突出片
４２２突出部位
４３操作部
４３２突起（係合部位）
５鞘 1 saw (an example of a manual instrument)
2 gripping part 220 through hole (an example of a fitting release mechanism)
2221 mounting hole 2A insertion hole 3 saw blade (an example of a functional part)
31 Through-hole 4 Mounting part 42 Fitting part 421 Protruding piece 422 Protruding part 43 Operating part 432 Protrusion (engaging part)
5 sheath

Claims

A functional part having a through hole formed on one end side ;
A grip portion in which an insertion hole for inserting the functional portion is formed;
A manual conveniences provided with an attachment portion for attaching the front Symbol function portion to the gripping portion,
The insertion hole is a hole that is drilled in the grip portion and opens to one end side of the grip portion,
The gripping portion has a mounting hole opened in the inner surface of the front Symbol insertion hole,
It said mounting portion includes a mounting portion main body, inserted in the through hole, and a fitting portion protruding to the mounting portion main body or et collision out degree is variable,
In Rukoto the mounting portion and the functional portion is inserted into the insertion hole from the opening of the insertion hole, the fitting portion is inserted into the through hole, the mounting hole in the protruding portion from the through hole Fitted into the
A manual instrument characterized by that.

The grip portion has a fitting release mechanism for pushing the fitting portion out of the mounting hole and releasing the fitting between the fitting portion and the mounting hole.
A manual instrument according to claim 1.

The said fitting part has the protrusion piece which has the flexibility extended diagonally downward from the said attachment part main body, and the said protrusion site | part provided in the lower end of this protrusion piece, It is characterized by the above-mentioned. Manual instrument as described in.

The mounting hole is a bottomed hole,
The fitting release mechanism is a through hole formed in a bottom portion of the bottomed hole in the grip portion.
A manual instrument according to any one of claims 1 to 3.

Further comprising a sheath of the functional part,
The attachment portion main body includes an operation portion formed so as to be pressed by a user, and has a biasing means for biasing the operation portion in a direction opposite to the function portion at a portion facing the function portion in the operation portion. ,
On the opposite surface side of the part facing the functional part of the operation part, an engagement part with the sheath is formed,
The engagement portion and the sheath are engaged in a state where the operation portion is not pressed by the user, and the engagement portion and the sheath are engaged in a state where the operation portion is pressed by the user. Is released,
A manual instrument according to any one of claims 1 to 4.

The functional part is a saw blade;
6. A manual instrument according to claim 1, wherein the manual instrument is a saw.