JP2019150920A - Hand tool - Google Patents
Hand tool Download PDFInfo
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- JP2019150920A JP2019150920A JP2018038006A JP2018038006A JP2019150920A JP 2019150920 A JP2019150920 A JP 2019150920A JP 2018038006 A JP2018038006 A JP 2018038006A JP 2018038006 A JP2018038006 A JP 2018038006A JP 2019150920 A JP2019150920 A JP 2019150920A
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- clamping
- hand tool
- clamping jaw
- sandwiching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/02—Jaws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/06—Joints
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
Description
本発明は、手工具に関する。 The present invention relates to a hand tool.
従来、作業部を除く柄部を炭素繊維強化樹脂によって形成した作業工具がある（例えば、特許文献１参照）。 Conventionally, there is a work tool in which a handle part excluding a work part is formed of a carbon fiber reinforced resin (for example, see Patent Document 1).
しかしながら、従来の作業工具は、柄部を軽量としているものの、作業部を金属製としているため、重心が作業部側に偏っており、依然として重量感のあるものであった。 However, although the conventional work tool has a light handle part, the work part is made of metal, so that the center of gravity is biased toward the work part side and still has a heavy feeling.
本発明は、上述のような課題に鑑みなされたものであり、軽量な手工具を提供することを目的とする。 The present invention has been made in view of the above-described problems, and an object thereof is to provide a lightweight hand tool.
本発明は、上記目的を達成するために、以下の構成によって把握される。
（１）本発明の手工具は、把持部と、前記把持部に連動して軸部を中心として揺動する挟持部とを備える手工具であって、前記把持部は、炭素強化複合材製であり、前記挟持部は、炭素強化複合材製の挟持顎と、前記挟持顎に対して着脱自在な鋼製のアタッチメントを有し、前記挟持顎は、揺動方向に膨出する膨出部を有する。
（２）本発明の手工具は、把持部と、前記把持部に連動して軸部を中心として揺動する挟持部とを備える手工具であって、前記把持部は、炭素強化複合材製であり、前記挟持部は、炭素強化複合材製の挟持顎と、前記挟持顎に対して着脱自在な鋼製のアタッチメントを有し、前記挟持顎は、前記軸部の軸方向に突出する補強リブを有する。
（３）上記（１）又は（２）の構成において、前記軸部は、砲金製の座金を有する。
（４）上記（１）から（３）のいずれかの構成において、前記アタッチメントは、前記挟持顎の先端を覆う。
The present invention is grasped by the following composition in order to achieve the above-mentioned object.
(1) The hand tool of the present invention is a hand tool including a grip portion and a sandwiching portion that swings around a shaft portion in conjunction with the grip portion, and the grip portion is made of a carbon reinforced composite material. The sandwiching portion has a sandwiching jaw made of carbon-reinforced composite material and a steel attachment that is detachable from the sandwiching jaw, and the sandwiching jaw bulges in a swinging direction. Have
(2) The hand tool of the present invention is a hand tool including a grip portion and a sandwiching portion that swings around a shaft portion in conjunction with the grip portion, and the grip portion is made of a carbon reinforced composite material. The sandwiching part has a sandwiching jaw made of a carbon reinforced composite material and a steel attachment detachably attached to the sandwiching jaw, and the sandwiching jaw is a reinforcement projecting in the axial direction of the shaft part. Has ribs.
(3) In the configuration of (1) or (2), the shaft portion has a gun metal washer.
(4) In any one of the constitutions (1) to (3), the attachment covers the tip of the clamping jaw.
本発明によれば、軽量な手工具を提供できる。 According to the present invention, a lightweight hand tool can be provided.
（実施形態）
以下、本発明を実施するための形態（以下、「実施形態」という。）を、添付図面に基づいて詳細に説明する。
(Embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the accompanying drawings.
図１は、実施形態に係る手工具１００を示す三面図であり、図１（ａ）は平面図であり、図１（ｂ）は正面図であり、図１（ｃ）は側面図である。図２（ａ）は挟持部２の閉状態を示す拡大図であり、図２（ｂ）は挟持部２の開状態を示す拡大図である。なお、図１において、手工具１００の背面図は、正面図と同様であるため、省略されている。 FIG. 1 is a three-view diagram illustrating a hand tool 100 according to an embodiment, FIG. 1 (a) is a plan view, FIG. 1 (b) is a front view, and FIG. 1 (c) is a side view. . FIG. 2A is an enlarged view showing a closed state of the clamping unit 2, and FIG. 2B is an enlarged view showing an opened state of the clamping unit 2. In FIG. 1, the back view of the hand tool 100 is omitted because it is the same as the front view.
手工具１００は、例えば、ペンチ、レンチ、スパナ、ニッパ、プライヤ等、ユーザが手で把持して使用するものである。以下では、ペンチとして使用する手工具１００を例にして説明する。 The hand tool 100 is, for example, used by a user to grip with a hand such as a pliers, a wrench, a spanner, a nipper, and a pliers. Hereinafter, the hand tool 100 used as a pliers will be described as an example.
図１に示すように、手工具１００は、把持部１と、把持部１に連動して軸部３を中心として揺動する挟持部２とを備える。ユーザは、通常、把持部１を手で把持した状態で操作することで、図２（ａ）に示す閉状態から図２（ｂ）に示す開状態へ、又は、図２（ｂ）に示す開状態から図２（ａ）に示す閉状態へと挟持部２を揺動させて動作させる。 As shown in FIG. 1, the hand tool 100 includes a gripping portion 1 and a clamping portion 2 that swings around the shaft portion 3 in conjunction with the gripping portion 1. The user usually operates by holding the grip portion 1 with his / her hand to change from the closed state shown in FIG. 2 (a) to the open state shown in FIG. 2 (b) or shown in FIG. 2 (b). The clamping part 2 is swung and operated from the open state to the closed state shown in FIG.
挟持部２は、炭素強化複合材製（カーボン製）の挟持顎１２、２２と、挟持顎１２、２２に対して着脱自在な鋼製のアタッチメント４を有する。なお、炭素強化複合材は、例えば、炭素繊維をエポキシ樹脂等に含侵させた炭素繊維強化樹脂（ＣＦＲＰ）であってよい。
アタッチメント４は、挟持顎１２、２２に設けられた取付穴ｄを貫通するボルト等（不図示）により、挟持顎１２、２２に対して着脱自在に固定される。
これにより、比較的靭性及びせん断強度が乏しく破損しやすい炭素強化複合材製の部分を直接的に被挟持体と接触させることなく、鋼製部材を介して被挟持体と接触させることができる。よって、耐久性が高く、しかも、軽量な手工具１００を実現できる。また、アタッチメント４は着脱自在であるので、被挟持体と接触する部分が破損しても、アタッチメント４を交換するだけで、新品同様の機能を発揮する手工具１００に戻したりできる。加えて、軽量な把持部１及び挟持顎１２、２２を共有したまま、アタッチメント４を異なる機能のアタッチメント４に交換して、多機能な手工具１００を実現できる。さらに、挟持部２の全体を鋼製にするのに比べて、手工具１００を軽量にできる上に、重心が把持部１側に偏りすぎずに、重量バランスを良くできる。
The sandwiching portion 2 includes sandwiching jaws 12 and 22 made of a carbon reinforced composite material (made of carbon) and a steel attachment 4 that can be attached to and detached from the sandwiching jaws 12 and 22. The carbon reinforced composite material may be, for example, a carbon fiber reinforced resin (CFRP) in which carbon fibers are impregnated with an epoxy resin or the like.
The attachment 4 is detachably fixed to the clamping jaws 12 and 22 by bolts or the like (not shown) penetrating through the mounting holes d provided in the clamping jaws 12 and 22.
Thereby, it can be made to contact with a to-be-clamped body through a steel member, without making the part made from a carbon reinforced composite material which has comparatively poor toughness and shear strength, and is easy to break, directly to the to-be-clamped body. Therefore, a highly durable and lightweight hand tool 100 can be realized. Moreover, since the attachment 4 is detachable, even if the portion that comes into contact with the sandwiched body is damaged, it is possible to return to the hand tool 100 that exhibits the same function as a new product by simply replacing the attachment 4. In addition, the multifunctional hand tool 100 can be realized by exchanging the attachment 4 with the attachment 4 having a different function while sharing the lightweight grip 1 and the clamping jaws 12 and 22. Furthermore, the hand tool 100 can be made lighter than the entire clamping unit 2 made of steel, and the weight balance can be improved without the center of gravity being too biased toward the gripping unit 1.
手工具１００は、詳細には、第１把持部１１及び第１挟持顎１２を有する第１カーボン部材１０と、第２把持部２１及び第２挟持顎２２を有する第２カーボン部材２０と、第１カーボン部材１０及び第２カーボン部材２０を軸支する軸部３と、第１挟持顎１２及び第２挟持顎２２に対して着脱自在なアタッチメント４とを備える。第１カーボン部材１０と第２カーボン部材２０とは、同じ形状であり、互いに表裏を逆にした状態で、軸部３に軸支されて軸部３を中心に揺動自在になるように組み合わされている。
そして、第１カーボン部材１０と第２カーボン部材２０とが組み合わされた状態で、第１カーボン部材１０の第１把持部１１と第２カーボン部材２０の第２把持部２１とが把持部１を構成する。また、第１カーボン部材１０と第２カーボン部材２０とが組み合わされた状態で、第１カーボン部材１０の第１挟持顎１２と第２カーボン部材２０の第２挟持顎２２とアタッチメント４とが挟持部２を構成する。
Specifically, the hand tool 100 includes a first carbon member 10 having a first gripping part 11 and a first clamping jaw 12, a second carbon member 20 having a second gripping part 21 and a second clamping jaw 22, A shaft portion 3 that pivotally supports the first carbon member 10 and the second carbon member 20 and an attachment 4 that is detachable with respect to the first clamping jaw 12 and the second clamping jaw 22 are provided. The first carbon member 10 and the second carbon member 20 have the same shape, and are combined so that they are pivotally supported by the shaft portion 3 and swingable about the shaft portion 3 with the front and back sides being reversed. Has been.
And in the state where the 1st carbon member 10 and the 2nd carbon member 20 were combined, the 1st holding part 11 of the 1st carbon member 10 and the 2nd holding part 21 of the 2nd carbon member 20 hold down the holding part 1. Constitute. Further, in a state where the first carbon member 10 and the second carbon member 20 are combined, the first clamping jaw 12 of the first carbon member 10, the second clamping jaw 22 of the second carbon member 20, and the attachment 4 are clamped. Part 2 is configured.
（第１カーボン部材１０及び第２カーボン部材２０）
次に、第１カーボン部材１０及び第２カーボン部材２０について詳細に説明する。
図３は、第１カーボン部材１０と第２カーボン部材２０と軸部３とが組み立てられた状態を示す三面図であり、図３（ａ）は平面図であり、図３（ｂ）は正面図であり、図３（ｃ）は側面図である。
(First carbon member 10 and second carbon member 20)
Next, the first carbon member 10 and the second carbon member 20 will be described in detail.
FIG. 3 is a three-plane view showing a state in which the first carbon member 10, the second carbon member 20, and the shaft portion 3 are assembled, FIG. 3 (a) is a plan view, and FIG. 3 (b) is a front view. FIG. 3C is a side view.
図３（ａ）、図３（ｂ）及び図３（ｃ）に示すように、第１カーボン部材１０及び第２カーボン部材２０は、軸部３を介して組み立てられる。
第１カーボン部材１０及び第２カーボン部材２０は、炭素強化複合材製であり、鋼製のものよりも軽量となっている。すなわち、第１把持部１１、第２把持部２１、第１挟持顎１２及び第２挟持顎２２は炭素強化複合材製である。一方、挟持部２の他部であるアタッチメント４は鋼製である。これにより、挟持部２の全てが炭素強化複合材製であるのに加えて、把持部１の一部も炭素強化複合材製であるので、軽量にできる上に、重心が把持部１側に偏りすぎずに、重量バランスを良くできる。
As shown in FIGS. 3A, 3 </ b> B, and 3 </ b> C, the first carbon member 10 and the second carbon member 20 are assembled via the shaft portion 3.
The first carbon member 10 and the second carbon member 20 are made of a carbon reinforced composite material and are lighter than those made of steel. That is, the 1st holding part 11, the 2nd holding part 21, the 1st clamping jaw 12, and the 2nd clamping jaw 22 are a product made from a carbon reinforcement composite material. On the other hand, the attachment 4 which is the other part of the clamping part 2 is made of steel. As a result, in addition to all of the sandwiching portions 2 being made of carbon reinforced composite material, part of the grip portion 1 is also made of carbon reinforced composite material. The weight balance can be improved without being too biased.
また、第１挟持顎１２及び第２挟持顎２２は、軸部３を中心として揺動する方向である揺動方向に膨出する膨出部Ｂを有する。このように、第１挟持顎１２及び第２挟持顎２２は膨出部Ｂを有するので、アタッチメント４を有する挟持部２によって被挟持体を強く挟んでも、第１挟持顎１２及び第２挟持顎２２に作用するせん断応力を分散させて緩和でき、第１挟持顎１２及び第２挟持顎２２が炭素強化複合材製であっても、破損を免れることができる。 The first clamping jaw 12 and the second clamping jaw 22 have a bulging portion B that bulges in a swinging direction that is a swinging direction about the shaft portion 3. Thus, since the 1st clamping jaw 12 and the 2nd clamping jaw 22 have the bulging part B, even if a to-be-clamped body is pinched strongly by the clamping part 2 which has the attachment 4, the 1st clamping jaw 12 and the 2nd clamping jaw The shear stress acting on 22 can be dispersed and relaxed, and even if the first clamping jaw 12 and the second clamping jaw 22 are made of a carbon reinforced composite material, damage can be avoided.
ところで、第１挟持顎１２及び第２挟持顎２２は、軸部３の軸方向に突出する補強リブＲを有してもよい。これにより、膨出部Ｂを有する場合と同様に、アタッチメント４を有する挟持部２によって被挟持体を強く挟んでも、第１挟持顎１２及び第２挟持顎２２に作用するせん断応力を分散させて低減でき、第１挟持顎１２及び第２挟持顎２２が炭素強化複合材製であっても、破損を免れることができる。なお、第１挟持顎１２及び第２挟持顎２２は、補強効果を更に高めるため、膨出部Ｂと補強リブＲとを両方有してもよい。 By the way, the 1st clamping jaw 12 and the 2nd clamping jaw 22 may have the reinforcement rib R which protrudes in the axial direction of the axial part 3. As shown in FIG. As a result, as in the case of having the bulging portion B, even if the sandwiched body 2 is strongly sandwiched by the sandwiching portion 2 having the attachment 4, the shear stress acting on the first sandwiching jaw 12 and the second sandwiching jaw 22 is dispersed. Even if the first clamping jaw 12 and the second clamping jaw 22 are made of a carbon reinforced composite material, damage can be avoided. In addition, the 1st clamping jaw 12 and the 2nd clamping jaw 22 may have both the bulging part B and the reinforcement rib R, in order to improve a reinforcement effect further.
第１挟持顎１２及び第２挟持顎２２は、それぞれ、アタッチメント４の係合ブロックＴ（図４参照）が嵌る形状のスロットＳを有する。これにより、アタッチメント４を第１挟持顎１２及び第２挟持顎２２に対して、確実に位置決めできる。 The 1st clamping jaw 12 and the 2nd clamping jaw 22 each have the slot S of the shape where the engagement block T (refer FIG. 4) of the attachment 4 fits. Thereby, the attachment 4 can be reliably positioned with respect to the first clamping jaw 12 and the second clamping jaw 22.
（軸部３）
次に、軸部３について詳細に説明する。
図１から図３に示すように、軸部３は、第１カーボン部材１０に固定される砲金製の第１座金３１（座金）と、第２カーボン部材２０に固定される第２座金３２と、第１座金３１及び第２座金３２を貫通する軸３３を備える。なお、第２座金３２は、砲金製であっても、鋼製であっても、その他の金属製又は樹脂製であってもよい。軸３３は、例えば、鋼製である。
第１座金３１及び第２座金３２は、円環状の薄板であり、中心孔を有し、その中心孔には軸３３が貫通されている。
また、第１座金３１及び第２座金３２は、それぞれ、軸部３の回転軸と直交し、互いが対向して面接触する座面を有する。そして、第１座金３１の座面及び第２座金３２の座面は、第１カーボン部材１０及び第２カーボン部材２０の揺動に伴い摺動する。
このように、軸部３は、砲金製の第１座金３１を有するので、軸部３が腐食するのを抑制でき、腐食の進行によって摩擦が増加して軸部３を中心とする回転抵抗が大きくなるのを防ぐことができる。
(Shaft 3)
Next, the shaft portion 3 will be described in detail.
As shown in FIGS. 1 to 3, the shaft portion 3 includes a first washer 31 (washer) made of gun metal fixed to the first carbon member 10, and a second washer 32 fixed to the second carbon member 20. The shaft 33 penetrates the first washer 31 and the second washer 32. The second washer 32 may be made of gun metal, steel, other metal or resin. The shaft 33 is made of steel, for example.
The first washer 31 and the second washer 32 are annular thin plates having a center hole, and a shaft 33 is passed through the center hole.
Moreover, the 1st washer 31 and the 2nd washer 32 have a seat surface which is orthogonal to the rotating shaft of the axial part 3, respectively, and mutually faces and is in surface contact. The seating surface of the first washer 31 and the seating surface of the second washer 32 slide as the first carbon member 10 and the second carbon member 20 swing.
Thus, since the shaft portion 3 has the first washer 31 made of gunmetal, the shaft portion 3 can be prevented from being corroded, and the friction increases due to the progress of corrosion, so that the rotational resistance around the shaft portion 3 is reduced. It can be prevented from becoming large.
（アタッチメント４）
次に、アタッチメント４について詳細に説明する。
図４は、アタッチメント４を示す六面図であり、図４（ａ）は平面図であり、図４（ｂ）は正面図であり、図４（ｃ）は右側面図であり、図４（ｄ）は左側面図であり、図４（ｅ）は背面図であり、図４（ｆ）は底面図である。なお、図４（ａ）〜図４（ｆ）は、第１アタッチメント４１の六面図と第２アタッチメント４２の六面図を合わせたものであり、図４（ａ）〜図４（ｆ）の各図は、第２アタッチメント４２を左側に、第１アタッチメント４１を右側に示している。
(Attachment 4)
Next, the attachment 4 will be described in detail.
4 is a six-sided view showing the attachment 4, FIG. 4 (a) is a plan view, FIG. 4 (b) is a front view, and FIG. 4 (c) is a right side view. (D) is a left side view, FIG. 4 (e) is a rear view, and FIG. 4 (f) is a bottom view. 4 (a) to 4 (f) are a combination of the six-sided view of the first attachment 41 and the six-sided view of the second attachment 42. FIGS. 4 (a) to 4 (f). Each of the drawings shows the second attachment 42 on the left side and the first attachment 41 on the right side.
図４に示すように、アタッチメント４は、第１アタッチメント４１と、第２アタッチメント４２とを有する。
第１アタッチメント４１と、第２アタッチメント４２とは、左右が反転した形状である。
第１アタッチメント４１は、図４（ｂ）に示すように、正面視において、アルファベットのＬ字を上下逆にした形状になっており、第２アタッチメント４２は、第１アタッチメント４１の形状に対して左右が反転した形状となっている。
As shown in FIG. 4, the attachment 4 includes a first attachment 41 and a second attachment 42.
The 1st attachment 41 and the 2nd attachment 42 are the shapes into which right and left were reversed.
As shown in FIG. 4 (b), the first attachment 41 has a shape in which the L shape of the alphabet is turned upside down in front view, and the second attachment 42 has a shape relative to the shape of the first attachment 41. The shape is reversed left and right.
第１アタッチメント４１及び第２アタッチメント４２は、それぞれ、先端が鋭利なカッタ部Ｃを有する。カッタ部Ｃは、図１に示すように、互いに向かい合った状態で、先端同士が当接するように位置決めされて、挟持部２に対して取り付けられる。この状態において、アタッチメント４は、第１アタッチメント４１と第２アタッチメント４２とが互いに向き合った状態で当接し、正面視においてアルファベットのＴ字状になる。
このように、アタッチメント４はカッタ部Ｃを有するので、ペンチのように、被挟持体をしっかりと挟持する機能に加えて、ワイヤを切断する機能を有する手工具１００とすることができる。
Each of the first attachment 41 and the second attachment 42 has a cutter part C having a sharp tip. As shown in FIG. 1, the cutter unit C is positioned so that the tips are in contact with each other in a state of facing each other, and is attached to the clamping unit 2. In this state, the attachment 4 comes into contact with the first attachment 41 and the second attachment 42 facing each other, and has an alphabetical T shape in front view.
Thus, since the attachment 4 has the cutter part C, it can be set as the hand tool 100 which has the function to cut | disconnect a wire in addition to the function to hold | grip a to-be-clamped body firmly like pliers.
また、第１アタッチメント４１及び第２アタッチメント４２は、それぞれ、第１挟持顎１２及び第２挟持顎２２のスロットＳ（図３参照）に係合可能な係合ブロックＴを有する。
これにより、アタッチメント４を第１挟持顎１２及び第２挟持顎２２に対して、確実に位置決めできる。
Moreover, the 1st attachment 41 and the 2nd attachment 42 have the engagement block T which can be engaged with the slot S (refer FIG. 3) of the 1st clamping jaw 12 and the 2nd clamping jaw 22, respectively.
Thereby, the attachment 4 can be reliably positioned with respect to the first clamping jaw 12 and the second clamping jaw 22.
第１アタッチメント４１及び第２アタッチメント４２は、取付穴ｄ（図３参照）を貫通するボルト等（不図示）が螺合するネジ穴ｅを有する。そして、第１アタッチメント４１及び第２アタッチメント４２は、係合ブロックＴが第１挟持顎１２及び第２挟持顎２２のスロットＳ（図３参照）に係合した状態で、第１挟持顎１２及び第２挟持顎２２に対して着脱自在に固定される。なお、アタッチメント４の固定は、着脱自在であれば、ボルト等によるものに限らない。 The first attachment 41 and the second attachment 42 have a screw hole e into which a bolt or the like (not shown) that penetrates the attachment hole d (see FIG. 3) is screwed. The first attachment 41 and the second attachment 42 are configured so that the first clamping jaw 12 and the second attachment 42 are in a state where the engagement block T is engaged with the slot S (see FIG. 3) of the first clamping jaw 12 and the second clamping jaw 22. It is detachably fixed to the second clamping jaw 22. Note that the attachment 4 is not limited to a bolt or the like as long as it is detachable.
第１アタッチメント４１及び第２アタッチメント４２は、それぞれ、挟持顎１２、２２の先端を覆うカバー部Ｖを有する。これにより、衝撃やせん断力等の作用によって破損しやすい炭素強化複合材製の挟持顎１２、２２の先端を、破損しにくい鋼製のアタッチメント４で覆うことができるので、挟持顎１２、２２を含む挟持部２が破損するのを抑制できる。 The 1st attachment 41 and the 2nd attachment 42 have the cover part V which covers the front-end | tip of the clamping jaws 12 and 22, respectively. As a result, the tips of the sandwich jaws 12 and 22 made of carbon reinforced composite material that are easily damaged by an action such as impact or shear force can be covered with the steel attachment 4 that is not easily damaged. It can suppress that the clamping part 2 including it breaks.
第１アタッチメント４１及び第２アタッチメント４２は、それぞれ、被挟持体を挟む際にグリップ力を増すための凹凸が設けられたグリップ部Ｇを有する。これにより、被挟持体をしっかりと挟むことができる。 Each of the first attachment 41 and the second attachment 42 includes a grip portion G provided with unevenness for increasing grip force when the sandwiched body is sandwiched. Thereby, a to-be-clamped body can be clamped firmly.
以上、実施形態を用いて本発明を説明したが、本発明の技術的範囲は上記実施形態に記載の範囲には限定されないことは言うまでもない。上記実施形態に、多様な変更又は改良を加えることが可能であることが当業者に明らかである。また、そのような変更又は改良を加えた形態も本発明の技術的範囲に含まれ得ることが、特許請求の範囲の記載から明らかである。 As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the scope of the claims that embodiments with such changes or improvements can also be included in the technical scope of the present invention.
本発明の手工具１００は、把持部１と、把持部１に連動して軸部３を中心として揺動する挟持部２とを備える手工具１００であって、把持部１は、炭素強化複合材製であり、挟持部２は、炭素強化複合材製の挟持顎１２、２２と、挟持顎１２、２２に対して着脱自在な鋼製のアタッチメント４を有し、挟持顎１２、２２は、揺動方向に膨出する膨出部Ｂを有するので、挟持部２の一部である挟持顎１２、２２が強化複合材製であっても、挟持顎１２、２２に作用するせん断応力を分散させて緩和でき、挟持顎１２、２２が炭素強化複合材製であっても、挟持部２の破損を免れることができる。よって、挟持部２の全体を鋼製にするのに比べて、手工具１００を軽量にできる上に、重心が把持部１側に偏りすぎずに、重量バランスを良くできる。 A hand tool 100 according to the present invention is a hand tool 100 that includes a gripping portion 1 and a clamping portion 2 that swings around a shaft portion 3 in conjunction with the gripping portion 1. The sandwiching part 2 has sandwiching jaws 12 and 22 made of carbon-reinforced composite material, and a steel attachment 4 that is detachable with respect to the sandwiching jaws 12 and 22. Since the bulging portion B bulges in the swinging direction, even if the clamping jaws 12 and 22 that are part of the clamping portion 2 are made of a reinforced composite material, the shear stress acting on the clamping jaws 12 and 22 is dispersed. Even if the clamping jaws 12 and 22 are made of a carbon reinforced composite material, damage to the clamping part 2 can be avoided. Therefore, the hand tool 100 can be made lighter than the entire clamping unit 2 made of steel, and the weight balance can be improved without the center of gravity being too biased toward the gripping unit 1.
本発明の手工具１００は、把持部１と、把持部１に連動して軸部３を中心として揺動する挟持部２とを備える手工具１００であって、把持部１は、炭素強化複合材製であり、挟持部２は、炭素強化複合材製の挟持顎１２、２２と、挟持顎１２、２２に対して着脱自在な鋼製のアタッチメント４を有し、挟持顎１２、２２は、軸部３の軸方向に突出する補強リブＲを有するので、挟持部２の一部である挟持顎１２、２２が強化複合材製であっても、挟持顎１２、２２に作用するせん断応力を分散させて緩和でき、挟持顎１２、２２が炭素強化複合材製であっても、挟持部２の破損を免れることができる。よって、挟持部２の全体を鋼製にするのに比べて、手工具１００を軽量にできる上に、重心が把持部１側に偏りすぎずに、重量バランスを良くできる。 A hand tool 100 according to the present invention is a hand tool 100 that includes a gripping portion 1 and a clamping portion 2 that swings around a shaft portion 3 in conjunction with the gripping portion 1. The sandwiching part 2 has sandwiching jaws 12 and 22 made of carbon-reinforced composite material, and a steel attachment 4 that is detachable with respect to the sandwiching jaws 12 and 22. Since the reinforcing ribs R project in the axial direction of the shaft portion 3 are provided, even if the sandwiching jaws 12 and 22 that are part of the sandwiching portion 2 are made of reinforced composite material, the shear stress acting on the sandwiching jaws 12 and 22 is exerted. Even if the clamping jaws 12 and 22 are made of a carbon reinforced composite material, damage to the clamping unit 2 can be avoided. Therefore, the hand tool 100 can be made lighter than the entire clamping unit 2 made of steel, and the weight balance can be improved without the center of gravity being too biased toward the gripping unit 1.
１ 把持部
２ 挟持部
３ 軸部
４ アタッチメント
１０ 第１カーボン部材
１１ 第１把持部
１２ 第１挟持顎
２０ 第２カーボン部材
２１ 第２把持部
２２ 第２挟持顎
３１ 第１座金
３２ 第２座金
３３ 軸
４１ 第１アタッチメント
４２ 第２アタッチメント
１００ 手工具
Ｂ 膨出部
Ｃ カッタ部
ｄ 取付穴
ｅ ネジ穴
Ｇ グリップ部
Ｒ 補強リブ
Ｓ スロット
Ｔ 係合ブロック
Ｖ カバー部
DESCRIPTION OF SYMBOLS 1 Holding part 2 Holding part 3 Shaft part 4 Attachment 10 1st carbon member 11 1st holding part 12 1st clamping jaw 20 2nd carbon member 21 2nd holding part 22 2nd clamping jaw 31 1st washer 32 2nd washer 33 Shaft 41 First attachment 42 Second attachment 100 Hand tool B bulging part C Cutter part d Mounting hole e Screw hole G Grip part R Reinforcement rib S Slot T Engagement block V Cover part
Claims (4)
前記把持部は、炭素強化複合材製であり、
前記挟持部は、炭素強化複合材製の挟持顎と、前記挟持顎に対して着脱自在な鋼製のアタッチメントを有し、
前記挟持顎は、揺動方向に膨出する膨出部を有する
ことを特徴とする手工具。 A hand tool comprising a gripping part and a clamping part that swings around a shaft part in conjunction with the gripping part,
The gripping part is made of a carbon reinforced composite material,
The clamping part has a clamping jaw made of a carbon reinforced composite material and a steel attachment that is detachable with respect to the clamping jaw,
The said clamping jaw has a bulging part which bulges in a rocking | fluctuation direction, The hand tool characterized by the above-mentioned.
前記把持部は、炭素強化複合材製であり、
前記挟持部は、炭素強化複合材製の挟持顎と、前記挟持顎に対して着脱自在な鋼製のアタッチメントを有し、
前記挟持顎は、前記軸部の軸方向に突出する補強リブを有する
ことを特徴とする手工具。 A hand tool comprising a gripping part and a clamping part that swings around a shaft part in conjunction with the gripping part,
The gripping part is made of a carbon reinforced composite material,
The clamping part has a clamping jaw made of a carbon reinforced composite material and a steel attachment that is detachable with respect to the clamping jaw,
The clamping tool has a reinforcing rib protruding in the axial direction of the shaft portion.
ことを特徴とする請求項１又は請求項２に記載の手工具。 The hand tool according to claim 1, wherein the shaft portion has a washer made of gunmetal.
ことを特徴とする請求項１から請求項３のいずれか１項に記載の手工具。 The hand tool according to any one of claims 1 to 3, wherein the attachment covers a tip of the clamping jaw.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018038006A JP2019150920A (en) | 2018-03-02 | 2018-03-02 | Hand tool |
| PCT/JP2019/003215 WO2019167529A1 (en) | 2018-03-02 | 2019-01-30 | Hand tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018038006A JP2019150920A (en) | 2018-03-02 | 2018-03-02 | Hand tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2019150920A true JP2019150920A (en) | 2019-09-12 |
Family
ID=67805748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018038006A Pending JP2019150920A (en) | 2018-03-02 | 2018-03-02 | Hand tool |
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| Country | Link |
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| JP (1) | JP2019150920A (en) |
| WO (1) | WO2019167529A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4197702B1 (en) | 2021-12-17 | 2025-11-26 | Protools Holding B.V. | Hand tool with handle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598782U (en) * | 1982-07-09 | 1984-01-20 | 東レ株式会社 | Work tools |
| DE19910838A1 (en) * | 1999-03-11 | 2000-09-14 | Rennsteig Werkzeuge Gmbh | Pliers for crimping conductor-core end sleeves, has rib like projections formed on square profile surfaces of pressure dies in direction of respective profile longitudinal axis |
| US7111376B2 (en) * | 2003-01-13 | 2006-09-26 | The Stanley Works | Tool with inserted blade members |
| JP2016140154A (en) * | 2015-01-26 | 2016-08-04 | 弘満 土屋 | Wire machining tool |
| KR101560139B1 (en) * | 2015-06-16 | 2015-10-26 | 김일한 | Plier as tool for preventing twist |
| JP6560114B2 (en) * | 2015-12-15 | 2019-08-14 | 株式会社東日製作所 | Spanner head structure, spanner and head structure manufacturing method |
-
2018
- 2018-03-02 JP JP2018038006A patent/JP2019150920A/en active Pending
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| WO2019167529A1 (en) | 2019-09-06 |
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