JP7039016B2 - Joint structure and tools - Google Patents

Joint structure and tools Download PDF

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JP7039016B2
JP7039016B2 JP2018054452A JP2018054452A JP7039016B2 JP 7039016 B2 JP7039016 B2 JP 7039016B2 JP 2018054452 A JP2018054452 A JP 2018054452A JP 2018054452 A JP2018054452 A JP 2018054452A JP 7039016 B2 JP7039016 B2 JP 7039016B2
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和也 斎藤
明寛 後藤
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特許法第30条第2項適用 平成30年3月8日、3月9日にニイガタidsデザインコンペティションにて公開Application of Article 30, Paragraph 2 of the Patent Act Published at the Niigata ids Design Competition on March 8, 2018 and March 9, 2018.

本発明は、長尺な部材同士を接続するジョイント構造及び当該ジョイント構造を用いて接続される複数の長尺な部材を有するグリップを備えた道具に関する。 The present invention relates to a tool having a joint structure for connecting long members to each other and a grip having a plurality of long members connected using the joint structure.

特許文献1では、パイプ材の連結構造を開示している。これは、複数のパイプ材間に、筒状のスリーブ部を備えた継手体を介在させて接続するものである。パイプ材の先端にはスリーブ部から片持ち状に伸びるばね部と、パイプ材の受け側端部の外周を取り囲むリング状部を設け、分解時においてスリーブ部を備えた継手体がパイプ材の受け側端部から抜け落ちることを防止する特徴を備えている。パイプ材の先端部には清掃ヘッドが設けられ、分割可能なパイプ材をグリップとして清掃具が開示されている。 Patent Document 1 discloses a connecting structure of a pipe material. In this method, a joint body provided with a tubular sleeve portion is interposed between a plurality of pipe materials to connect them. At the tip of the pipe material, a spring part that extends cantilevered from the sleeve part and a ring-shaped part that surrounds the outer circumference of the receiving side end part of the pipe material are provided, and the joint body provided with the sleeve part at the time of disassembly receives the pipe material. It has a feature to prevent it from falling off from the side end. A cleaning head is provided at the tip of the pipe material, and the cleaning tool is disclosed using the splittable pipe material as a grip.

特開2012-202411号公報Japanese Unexamined Patent Publication No. 2012-201211

特許文献1によれば、長尺なグリップ(柄)が、分解可能な2本のパイプ材から構成されている。これは、持ち運びや収納時の利便性を考慮したものであり、使用時には、2本のパイプ材を接続する必要がある。2本のパイプ材を接続する際には、2本のパイプ材が相互に軸心回りに回転することを防止すると共に、軸心に直交する方向への揺動も防止するため、特許文献1では、パイプ材とは別部材としてのスリーブ部を備えた継手体を介在させている。そのため、部品点数が多く構造が複雑である。別部材としての継手体を使用せずに、2本のパイプ材を直接接続する構成とすれば便利であるが、例えば、鍬、スコップなどように、グリップに接続されるヘッド部分の重量が重くなればなるほど、両者を接続した際の軸心回りの回転防止や軸心に直交する方向への揺動防止について十分な対策を施す必要があり、これを別部材としての継手体を介さずに達成することは容易ではない。 According to Patent Document 1, a long grip (handle) is composed of two disassembleable pipe materials. This is for convenience in carrying and storing, and it is necessary to connect two pipe materials at the time of use. When connecting two pipe materials, Patent Document 1 is for preventing the two pipe materials from rotating around the axis and also preventing swinging in a direction orthogonal to the axis. Then, a joint body having a sleeve portion as a member separate from the pipe material is interposed. Therefore, the number of parts is large and the structure is complicated. It is convenient to connect two pipe materials directly without using a joint body as a separate member, but the weight of the head part connected to the grip is heavy, for example, a hoe, a shovel, etc. As it becomes, it is necessary to take sufficient measures to prevent rotation around the axis when both are connected and to prevent swinging in the direction orthogonal to the axis, without using a joint body as a separate member. It's not easy to achieve.

本発明は上記に鑑みなされたものであり、複数の長尺な部材を、両者間に別部材を介在させることなく直接接続可能であり、従来と比較して部品点数が少なく、構造が簡易であり、かつ、両者を接続した際の軸心回りの回転防止と軸心に直交する方向への揺動防止の両方を達成することができるジョイント構造及び当該ジョイント構造を用いた道具を提供することを課題とする。 The present invention has been made in view of the above, and it is possible to directly connect a plurality of long members without interposing a separate member between them, the number of parts is small as compared with the conventional case, and the structure is simple. To provide a joint structure and a tool using the joint structure that can achieve both prevention of rotation around the axis when both are connected and prevention of swing in the direction orthogonal to the axis. Is the subject.

上記課題を解決するため、本発明のジョイント構造は、
長尺な複数の部材を長手方向に沿って取り外し可能に接続するジョイント構造であって、
前記複数の部材のうち接続対象となっている一方の部材の接続側端部に二股状に形成された2つの突出片と、前記各突出片の対向面間において異なる位置に掛け渡された複数の連結軸と、前記突出片の基部側から前記対向面間の間隙に出没可能に設けられたロックシャフトとを有する第1継手部と、
前記一方の部材に接続される他方の部材の接続側端部に設けられ、前記各突出片の対向面間の間隙に挿入され、前記各対向面により軸心回りの動きが規制される挿入部と、前記挿入部の先端縁から長手方向に沿って切り欠かれるように形成され、前記複数の連結軸がそれぞれ係合する複数の連結溝とを有する第2継手部と
を備え、
接続時に、前記ロックシャフトが、前記複数の連結溝のうち、前記挿入部の先端縁に開口する開口端寄りの連結溝に挿入され、前記各突出片の前記各対向面の対面方向に対する、前記一方の部材及び前記他方の部材の直径方向への動きが規制されることを特徴とする。
In order to solve the above problems, the joint structure of the present invention
It is a joint structure that removably connects multiple long members along the longitudinal direction.
Two projecting pieces formed in a bifurcated shape at the connection side end of one of the plurality of members to be connected, and a plurality of members hung at different positions between the facing surfaces of the projecting pieces. A first joint portion having a connecting shaft of the above and a lock shaft provided so as to appear and disappear in a gap between the facing surfaces from the base side of the protruding piece.
An insertion portion provided at the connection side end of the other member connected to the one member, inserted into the gap between the facing surfaces of the protruding pieces, and the movement around the axis is restricted by the facing surfaces. And a second joint portion formed so as to be cut out along the longitudinal direction from the tip edge of the insertion portion and having a plurality of connecting grooves in which the plurality of connecting shafts are engaged with each other.
At the time of connection, the lock shaft is inserted into a connecting groove near the opening end that opens at the tip edge of the insertion portion among the plurality of connecting grooves, and the protruding piece is said to have a facing direction with respect to each facing surface. It is characterized in that the movement of one member and the other member in the radial direction is restricted.

前記第1継手部の複数の連結軸は、前記各突出片の対向面間において異なる位置に掛け渡された第1及び第2連結軸からなり、
前記第2継手部の複数の連結溝は、前記挿入部の先端縁側に開口する第1連結溝と、前記第1連結溝に、連通部を備えた隔壁部を隔てて隣接する位置に形成された第2連結溝とをからなり、
前記第2連結軸が前記連通部を介して前記第2連結溝に挿入され、前記第1連結軸が前記第1連結溝に挿入される構成であることが好ましい。
The plurality of connecting shafts of the first joint portion are composed of first and second connecting shafts laid at different positions between the facing surfaces of the protruding pieces.
The plurality of connecting grooves of the second joint portion are formed at positions adjacent to the first connecting groove that opens on the tip edge side of the insertion portion and the first connecting groove with a partition wall portion provided with a communication portion. It consists of a second connecting groove.
It is preferable that the second connecting shaft is inserted into the second connecting groove via the communicating portion, and the first connecting shaft is inserted into the first connecting groove.

前記長尺な複数の部材として、相互に接続されることにより、道具のグリップを構成するものに適用されることが好ましい。 It is preferable that the plurality of long members are connected to each other to form a grip of a tool.

また、本発明の道具は、
ヘッド部分に対して長尺なグリップが連結されてなる道具において、
前記グリップが、長手方向に沿って取り外し可能に接続される複数の長尺な部材からなり、前記複数の長尺な部材が、上記のジョイント構造により接続可能となっていることを特徴とする。
Further, the tool of the present invention is
In a tool where a long grip is connected to the head part
The grip is composed of a plurality of elongated members removably connected along the longitudinal direction, and the plurality of elongated members are characterized in that they can be connected by the above-mentioned joint structure.

本発明によれば、接続対象の一方の部材に設けられた第1継手部の各突出片の対向面間の間隙に、接続対象の他方の部材に設けられた第2継手部の挿入部を挿入する構成であるため、軸心回りに相対回転しようとしても各突出片の各対向面に挿入部の外側面が当接することにより規制される。また、第1継手部に設けられたロックシャフトが、第2継手部の第1連結溝に挿入されることで、軸心に直交する方向への揺動が防止される。よって、本発明では、別部材を介在させることなく、長尺な複数の部材同士を長手方向に沿って直接確実かつ容易に接続することができ、従来と比較して、部品点数が少なく構造が簡易で便利である。 According to the present invention, the insertion portion of the second joint portion provided on the other member to be connected is inserted into the gap between the facing surfaces of the protruding pieces of the first joint portion provided on one member to be connected. Since it is configured to be inserted, even if it tries to rotate relative to the axis, it is restricted by the outer surface of the insertion portion coming into contact with each facing surface of each protruding piece. Further, by inserting the lock shaft provided in the first joint portion into the first connecting groove of the second joint portion, the swing in the direction orthogonal to the axis is prevented. Therefore, in the present invention, a plurality of long members can be directly, reliably and easily connected to each other along the longitudinal direction without interposing a separate member, and the number of parts is smaller and the structure is smaller than the conventional one. Simple and convenient.

図1(a)は、本発明の一の実施形態に係る道具(鍬)を示した斜視図であり、図1(b)は、グリップを分解した斜視図である。FIG. 1A is a perspective view showing a tool (hoe) according to an embodiment of the present invention, and FIG. 1B is an exploded perspective view of a grip. 図2(a)は、ジョイント構造を説明するための図1(a)の要部拡大図である。FIG. 2A is an enlarged view of a main part of FIG. 1A for explaining the joint structure. 図3は、ジョイント構造を構成する第1継手部及び第2継手部を示す斜視図である。FIG. 3 is a perspective view showing a first joint portion and a second joint portion constituting the joint structure. 図4は、第1継手部を示す図であり、(a)は平面図、(b)は正面図、(c)は側面図である。4A and 4B are views showing a first joint portion, where FIG. 4A is a plan view, FIG. 4B is a front view, and FIG. 4C is a side view. 図5は、第2継手部を示す図であり、(a)は平面図、(b)は正面図、(c)は側面図である。5A and 5B are views showing a second joint portion, where FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view. 図6(a)~(c)は、第1継手部及び第2継手部の接続の手順を説明するための図である。6 (a) to 6 (c) are diagrams for explaining the procedure for connecting the first joint portion and the second joint portion. 図7は、道具の他の例を示した図であり、(a)はレーキのヘッド部分を、(b)は、角スコップを、(c)は剣スコップを示した図である。7A and 7B are views showing other examples of tools, in which FIG. 7A shows a rake head portion, FIG. 7B shows a square scoop, and FIG. 7C shows a sword scoop. 図8は、道具を収容する保管ケースの外観を示した図であり、(a)は斜視図、(b)は平面図、(c)は正面図、(d)は側面図である。8A and 8B are views showing the appearance of a storage case for accommodating tools, where FIG. 8A is a perspective view, FIG. 8B is a plan view, FIG. 8C is a front view, and FIG. 8D is a side view. 図9は、保管ケースの内部を示した図であり、(a)は斜視図、(b)は正面図、(c)は側面図である。9A and 9B are views showing the inside of the storage case, where FIG. 9A is a perspective view, FIG. 9B is a front view, and FIG. 9C is a side view.

以下、図面に示した実施形態に基づき本発明をさらに詳細に説明する。図1及び図2は、本発明の一の実施形態に係るジョイント構造10を適用した道具20の例を示した図であり、図3~図5は、ジョイント構造を示した図である。なお、本実施形態のジョイント構造10が適用される道具20の種類は限定されるものではなく、例えば、図1及び図2に示した鍬、あるいは、図7に例示したレーキやスコップ等の農具、工具あるいは清掃用具等に適用することができる。 Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings. 1 and 2 are views showing an example of a tool 20 to which the joint structure 10 according to the embodiment of the present invention is applied, and FIGS. 3 to 5 are views showing the joint structure. The type of tool 20 to which the joint structure 10 of the present embodiment is applied is not limited, and for example, the hoe shown in FIGS. 1 and 2 or the farm tool such as a rake or a scoop exemplified in FIG. 7 is used. , Tools, cleaning tools, etc.

図1に示した道具20は鍬であり、鍬としての機能を果たすヘッド部分20Aと、ヘッド部分20Aが先端に取り付けられたグリップ200とを有している。グリップ200は、所定の長さを有し、断面略円形に形成された長尺な棒状部材からなる。一般的なグリップは、1本の棒状部材からなるが、本実施形態のグリップ200は、持ち運びや収納時の利便性を考慮して分割可能となっている。本実施形態では、グリップ200を3分割している。分割されたグリップ200を構成する3つの長尺な部材のうち、長手方向に隣接する一方の部材及び他方の部材間にジョイント構造10が設けられている。 The tool 20 shown in FIG. 1 is a hoe, and has a head portion 20A that functions as a hoe and a grip 200 to which the head portion 20A is attached to the tip. The grip 200 has a predetermined length and is made of a long rod-shaped member formed in a substantially circular cross section. A general grip is composed of one rod-shaped member, but the grip 200 of the present embodiment can be divided in consideration of convenience at the time of carrying and storing. In this embodiment, the grip 200 is divided into three parts. Of the three long members constituting the divided grip 200, a joint structure 10 is provided between one member adjacent to each other in the longitudinal direction and the other member.

なお、特許請求の範囲で規定する「一方の部材」は、長手方向に隣接する接続対象の2部材の関係において、後述の第1継手部110が設けられているものを指し、「他方の部材」は、第2継手部120が設けられているものを指す。例えば、図1の例では、ヘッド部分20Aが先端部201aに取り付けられた部材(先端長尺部材)201は、後端部201bに第2継手部120を設けているため「他方の部材」に相当し、先端長尺部材201に隣接する部材(中間長尺部材)202は、先端部202aに第1継手部110が設けられているため、先端長尺部材201との関係で「一方の部材」に相当する。また、中間長尺部材202の後端部202bに接続される部材(後端長尺部材)203は、先端部203aに第1継手部110が設けられており、中間長尺部材202の後端部202bに設けた第2継手部120に接続される。よって、中間長尺部材202及び後端長尺部材203間の関係では、中間長尺部材202が「他方の部材」に相当し、後端長尺部材203が「一方の部材」に相当する。 The "one member" defined in the claims refers to a member provided with the first joint portion 110, which will be described later, in the relationship between two members to be connected adjacent to each other in the longitudinal direction, and "the other member". "" Refers to the one provided with the second joint portion 120. For example, in the example of FIG. 1, the member (tip long member) 201 to which the head portion 20A is attached to the tip portion 201a has a second joint portion 120 provided at the rear end portion 201b, so that the member is designated as the “other member”. Correspondingly, the member (intermediate long member) 202 adjacent to the long tip member 201 is provided with the first joint portion 110 at the tip portion 202a, and therefore, in relation to the long tip member 201, "one member". Is equivalent to. Further, the member (rear end long member) 203 connected to the rear end portion 202b of the intermediate long member 202 is provided with a first joint portion 110 at the tip end portion 203a, and the rear end of the intermediate long member 202 is provided. It is connected to the second joint portion 120 provided in the portion 202b. Therefore, in the relationship between the intermediate long member 202 and the rear end long member 203, the intermediate long member 202 corresponds to the "other member", and the rear end long member 203 corresponds to the "one member".

次に、ジョイント構造10について、主に図2~図6を参照してより詳細に説明するが、説明の便宜上、先端長尺部材201及び中間長尺部材202の2部材間のジョイント構造10を例にとり説明する。 Next, the joint structure 10 will be described in more detail mainly with reference to FIGS. 2 to 6, but for convenience of explanation, the joint structure 10 between the two members of the tip long member 201 and the intermediate long member 202 will be described. Let's take an example.

上記のように、ジョイント構造10は、第1継手部110及び第2継手部120との組合せで構成され、第1継手部110は、中間長尺部材202の先端部(先端長尺部材201との接続側端部)202aに設けられ、第2継手部120は、先端長尺部材201の後端部(中間長尺部材202との接続側端部)201bに設けられている。 As described above, the joint structure 10 is composed of a combination of the first joint portion 110 and the second joint portion 120, and the first joint portion 110 is the tip portion of the intermediate long member 202 (with the tip long member 201). The second joint portion 120 is provided at the rear end portion (connection side end portion with the intermediate long member 202) 201b of the tip long member 201.

第1継手部110は、図3及び図4に示したように、中間長尺部材202の先端部202aから二股状に突出する突出片111,111を有している。突出片111,111は、側面視で略円形に形成され(図4(c)参照)、突出片111,111の対向面111a,111a間に、第1連結軸112及び第2連結軸113が掛け渡されている。第1連結軸112及び第2連結軸113は、後述する第2継手部120の第1連結溝122及び第2連結溝123に係合し、グリップ200の長手方向に直交する方向への揺動を防止するため複数設けられている。より具体的には、第1連結軸112は、対向面111a,111aの中心付近に掛け渡され、第2連結軸113は、軸心が、側面視で、第1連結軸112に対して突出片111,111の先端縁111b,111b寄りで、かつ上下いずれかにずれた位置(本実施形態では、図3及び図4(b)に示したように、下縁111c側にややずれた位置)に掛け渡されている。また、第2連結軸113は、第1連結軸112よりも細い直径となっている。 As shown in FIGS. 3 and 4, the first joint portion 110 has protruding pieces 111 and 111 protruding in a bifurcated manner from the tip portion 202a of the intermediate long member 202. The projecting pieces 111 and 111 are formed in a substantially circular shape in a side view (see FIG. 4C), and the first connecting shaft 112 and the second connecting shaft 113 are formed between the facing surfaces 111a and 111a of the projecting pieces 111 and 111. It has been handed over. The first connecting shaft 112 and the second connecting shaft 113 engage with the first connecting groove 122 and the second connecting groove 123 of the second joint portion 120, which will be described later, and swing in a direction orthogonal to the longitudinal direction of the grip 200. It is provided more than once to prevent. More specifically, the first connecting shaft 112 is hung near the center of the facing surfaces 111a and 111a, and the axis of the second connecting shaft 113 protrudes from the first connecting shaft 112 in a side view. Positions of the pieces 111, 111 that are closer to the tip edges 111b, 111b and offset to either the upper or lower position (in this embodiment, as shown in FIGS. 3 and 4B), the positions are slightly offset to the lower edge 111c side. ) Has been handed over. Further, the second connecting shaft 113 has a diameter smaller than that of the first connecting shaft 112.

第1継手部110は、さらに、ロックシャフト115を有している。ロックシャフト115は、突出片111,111の基部側である、対向面111a,111a間の間隙114の端壁面114aから、当該間隙114に向かって出没可能になっている。具体的には、端壁面114aから中間長尺部材202の軸心に沿って所定の深さのシャフト挿入孔116が設けられており、このシャフト挿入孔116内にばね部材により弾性的に付勢されている。本実施形態では、シャフト挿入孔116内にコイルスプリング117を配設して弾発付勢し、ロックシャフト115の一部が、シャフト挿入孔116から突出し、常態において、間隙114内に位置させている。ロックシャフト115は外周方向に突出する突起部115aが設けられ、この突起部115aが中間長尺部材202に形成されたスリット(図示せず)を通じて外周面に突出し、操作ボタン118に連結されている。ロックシャフト115の一部が間隙114内に位置している状態において、操作ボタン118を後端部202b側に引くと、ロックシャフト115はシャフト挿通孔116内に収容される。また、ロックシャフトは、後述する第2継手部120の第1連結溝122内に挿入可能な直径で形成されている。 The first joint 110 further has a lock shaft 115. The lock shaft 115 can appear and disappear from the end wall surface 114a of the gap 114 between the facing surfaces 111a and 111a, which is the base side of the protruding pieces 111 and 111, toward the gap 114. Specifically, a shaft insertion hole 116 having a predetermined depth is provided from the end wall surface 114a along the axis of the intermediate long member 202, and the shaft insertion hole 116 is elastically urged by the spring member. Has been done. In the present embodiment, the coil spring 117 is arranged in the shaft insertion hole 116 to repel and urge, and a part of the lock shaft 115 protrudes from the shaft insertion hole 116 and is normally positioned in the gap 114. There is. The lock shaft 115 is provided with a protrusion 115a projecting in the outer peripheral direction, and the protrusion 115a projects to the outer peripheral surface through a slit (not shown) formed in the intermediate long member 202 and is connected to the operation button 118. .. When the operation button 118 is pulled toward the rear end portion 202b while a part of the lock shaft 115 is located in the gap 114, the lock shaft 115 is accommodated in the shaft insertion hole 116. Further, the lock shaft is formed with a diameter that can be inserted into the first connecting groove 122 of the second joint portion 120, which will be described later.

先端長尺部材201の後端部201bに設けられる第2継手部120は、図3及び図5に示したように、挿入部121を有している。挿入部121は、側面視で略円形に形成され(図5(c)参照)、第1継手部110の一対の突出片111,111の対向面111a,111a間の間隙114に挿入して配設される。挿入部121は、幅が、第1継手部110の一対の突出片111,111の対向面111a,111a間の距離とほぼ同じが若干小さい程度になっており、対向面111a,111aに対峙する外側面121a,121aは、対向面111a,111aと同じく略平坦な面になっている。このため、挿入部121を間隙114内に配置した状態において、中間長尺部材202に対して先端長尺部材201を相対的に軸心回りに回転させる方向の外力が付与された場合でも、外側面121a,121aが対向面111a,111aに接することから、先端長尺部材201の軸心回りへの相対回転は阻止される。なお、先端長尺部材201が中間長尺部材202に対して、長手方向に直交する方向に動作できるのは、挿入部121の外側面121a,121aが突出片111,111の対向面111a,111aに規制されて回転する方向(図3の矢印A1、A2方向)のみとなる。 The second joint portion 120 provided at the rear end portion 201b of the long tip member 201 has an insertion portion 121 as shown in FIGS. 3 and 5. The insertion portion 121 is formed in a substantially circular shape in a side view (see FIG. 5C), and is inserted and arranged in the gap 114 between the facing surfaces 111a and 111a of the pair of protruding pieces 111 and 111 of the first joint portion 110. Will be set up. The width of the insertion portion 121 is substantially the same as the distance between the facing surfaces 111a and 111a of the pair of protruding pieces 111 and 111 of the first joint portion 110, but is slightly smaller, and faces the facing surfaces 111a and 111a. The outer side surfaces 121a and 121a are substantially flat surfaces like the facing surfaces 111a and 111a. Therefore, even when the insertion portion 121 is arranged in the gap 114 and an external force is applied to the intermediate long member 202 in the direction of relatively rotating the tip long member 201 around the axis, the outside is applied. Since the side surfaces 121a and 121a are in contact with the facing surfaces 111a and 111a, the relative rotation of the long tip member 201 around the axis is prevented. The tip long member 201 can operate in the direction orthogonal to the intermediate long member 202 in the longitudinal direction, because the outer surfaces 121a, 121a of the insertion portion 121 face the projecting pieces 111, 111, 111a, 111a. It is restricted to the direction of rotation (arrows A1 and A2 in FIG. 3) only.

挿入部121には、その先端縁121bから長手方向に沿って切り欠かれるように形成された複数の連結溝を有する。本実施形態では、第1連結溝122及び第2連結溝123の2つが形成されている。第1連結溝122は、開口端122bが先端縁121bに開口し、側部が外側面121a,121aに開放されるように、長手方向に沿って所定の深さ切り欠かれるように形成されている。第1連結溝122の溝幅X1(第1連結溝122を挟んで対向する対向片122d,122d間の距離(図5(c)参照))は、第1連結軸112の直径とほぼ同じになっている。そして、挿入部121は、この対向片122d,122dの対面方向(図3のB方向)が、第1継手部110の2つの突出片111,111の対向面111a,111aの対面方向(図3のC方向)と直交する向きで、突出片111,111間に挿入される。 The insertion portion 121 has a plurality of connecting grooves formed so as to be cut out along the longitudinal direction from the tip edge 121b thereof. In the present embodiment, two connecting grooves 122 and a second connecting groove 123 are formed. The first connecting groove 122 is formed so as to be cut out to a predetermined depth along the longitudinal direction so that the opening end 122b opens to the tip edge 121b and the side portion is opened to the outer surfaces 121a and 121a. There is. The groove width X1 of the first connecting groove 122 (distance between the facing pieces 122d and 122d facing each other across the first connecting groove 122 (see FIG. 5C)) is substantially the same as the diameter of the first connecting shaft 112. It has become. Then, in the insertion portion 121, the facing direction of the facing pieces 122d and 122d (B direction in FIG. 3) is the facing direction of the facing surfaces 111a and 111a of the two protruding pieces 111 and 111 of the first joint portion 110 (FIG. 3). It is inserted between the projecting pieces 111 and 111 in a direction orthogonal to the C direction of the above.

第2連結溝123は、隔壁部124を隔てて第1連結溝122の奥側(中間長尺部材202の後端部202b側)に隣接形成されている。隔壁部124には、相対的に小径の第2連結軸113が通過可能な連通部124aが形成され、第1連結溝122側から挿入される第2連結軸123は、この連通部124aを経て第2連結溝123内に挿入配置される。この連通部124aは、第1連結溝122の溝中心P(図5(c),図6(a)参照)上に形成される。 The second connecting groove 123 is formed adjacent to the inner side of the first connecting groove 122 (the rear end portion 202b side of the intermediate long member 202) across the partition wall portion 124. A communication portion 124a through which the second connecting shaft 113 having a relatively small diameter can pass is formed in the partition wall portion 124, and the second connecting shaft 123 inserted from the first connecting groove 122 side passes through the communication portion 124a. It is inserted and arranged in the second connecting groove 123. The communication portion 124a is formed on the groove center P (see FIGS. 5 (c) and 6 (a)) of the first connecting groove 122.

第2連結溝123の溝幅X2は、第2連結軸113の直径とほぼ同じで、第1連結溝X1よりも狭い幅になっている。また、第2連結軸113の第1連結軸112に対する相対位置に合わせて、第1連結溝122の溝中心P上に位置する連通部124aよりも、第2連結溝123は、側面視で、溝底面123aの位置が円周方向に深く、第1連結溝122の溝底面122aよりも低い位置となっている(図5(c)参照)。 The groove width X2 of the second connecting groove 123 is substantially the same as the diameter of the second connecting shaft 113, and has a width narrower than that of the first connecting groove X1. Further, the second connecting groove 123 is viewed from the side surface as compared with the communication portion 124a located on the groove center P of the first connecting groove 122 in accordance with the relative position of the second connecting shaft 113 with respect to the first connecting shaft 112. The position of the groove bottom surface 123a is deep in the circumferential direction and is lower than the groove bottom surface 122a of the first connecting groove 122 (see FIG. 5C).

本実施形態のジョイント構造10は、次のように使用される。先端長尺部材201と中間長尺部材202を接続する場合、図6(a)に示した第1継手部110の第1連結軸112及び第2連結軸113の中心を結ぶ仮想線Qに沿って、斜め下方向から、第2継手部120の挿入部121を、第1継手部110の間隙114に、突出片111,111の先端縁111b,111b寄りから挿入する。挿入部121を挿入する際には、第1連結溝122に第1連結軸112が侵入するように挿入する。すると、第1連結溝122の溝幅X1が第1連結軸112の直径とほぼ同じであるため、第1連結溝122の溝中心Pに、第1連結軸112及び第2連結軸113の中心間を通る仮想線Qが自動的に位置合わせされる。第1連結溝122の溝中心P上に連通部124aが形成されているため、そのまま挿入すると、第2連結軸113が連通部124aを通過する。このとき、第1継手部110の間隙114には、ロックシャフト115が突出しているが、挿入部121を挿入して過程で、挿入部121の略円弧状の先端縁121bがロックシャフト115に当接し、シャフト挿通孔116内に押し込む(図6(b)参照)。 The joint structure 10 of the present embodiment is used as follows. When connecting the long tip member 201 and the intermediate long member 202, along the virtual line Q connecting the centers of the first connecting shaft 112 and the second connecting shaft 113 of the first joint portion 110 shown in FIG. 6A. Then, from diagonally downward, the insertion portion 121 of the second joint portion 120 is inserted into the gap 114 of the first joint portion 110 from the tip edges 111b and 111b of the protruding pieces 111 and 111. When inserting the insertion portion 121, the first connecting shaft 112 is inserted into the first connecting groove 122. Then, since the groove width X1 of the first connecting groove 122 is substantially the same as the diameter of the first connecting shaft 112, the center of the first connecting shaft 112 and the second connecting shaft 113 is located at the groove center P of the first connecting groove 122. The virtual line Q passing between them is automatically aligned. Since the communication portion 124a is formed on the groove center P of the first connection groove 122, if it is inserted as it is, the second connection shaft 113 passes through the communication portion 124a. At this time, the lock shaft 115 projects into the gap 114 of the first joint portion 110, but in the process of inserting the insertion portion 121, the substantially arcuate tip edge 121b of the insertion portion 121 hits the lock shaft 115. It touches and is pushed into the shaft insertion hole 116 (see FIG. 6 (b)).

次に、連通部124aを通過した第2連結軸113が第2連結溝123の溝底面123aに近接する方向に先端長尺部材201を長手方向に直交する方向に所定角度回転させる(図6(b)参照)。すると、第1連結溝122の開口端がロックシャフト115に対峙するため、ロックシャフト115は、コイルスプリング117に付勢されて、シャフト挿通孔116から突出し、第1連結溝122内に一部が挿入される(図6(c)及び図2参照)。これにより、先端長尺部材201は長手方向に直交する方向(図3の矢印A1,A2方向)への回転が阻止されてロックされる。 Next, the second connecting shaft 113 that has passed through the communication portion 124a rotates the tip long member 201 by a predetermined angle in a direction orthogonal to the longitudinal direction in a direction close to the groove bottom surface 123a of the second connecting groove 123 (FIG. 6 (FIG. 6). b) See). Then, since the open end of the first connecting groove 122 faces the lock shaft 115, the lock shaft 115 is urged by the coil spring 117 and protrudes from the shaft insertion hole 116, and a part of the lock shaft 115 is inserted in the first connecting groove 122. It is inserted (see FIGS. 6 (c) and 2). As a result, the long tip member 201 is locked from being rotated in the directions orthogonal to the longitudinal direction (directions A1 and A2 in FIG. 3).

このようにして接続されることにより、先端長尺部材201及び中間長尺部材202は、軸心回りへの相対回転が生じることなく、また、長手方向に直交する方向への揺動も生じない。従って、本実施形態によれば、先端長尺部材201に設けられた第2継手部120及び中間長尺部材202に設けられた第1継手部110同士を連結するだけで、両者間に跨がる別部材を用いることなく確実かつ簡易に接続できる。よって、ヘッド部分20Aが所定の重量を有する農具などにおけるグリップ200として適している。 By being connected in this way, the tip long member 201 and the intermediate long member 202 do not rotate relative to the axis and do not swing in the direction orthogonal to the longitudinal direction. .. Therefore, according to the present embodiment, only the second joint portion 120 provided on the tip long member 201 and the first joint portion 110 provided on the intermediate long member 202 are connected to each other, and the two joint portions are straddled. It can be connected securely and easily without using a separate member. Therefore, the head portion 20A is suitable as a grip 200 for agricultural tools and the like having a predetermined weight.

先端長尺部材201及び中間長尺部材202は上記のように接続して一つのグリップ200として使用されるが、使用後は、例えば、図8及び図9に示したような保管ケースに1000に、それぞれを取り外して収容される。取り外す際には、操作ボタン118を中間長尺部材202の他端202b側に手指で移動させる。これにより、ロックシャフト115が第1連結溝122から離脱される。ロックシャフト115を第1連結溝122から離脱させた状態で、先端長尺部材201を、接続時と逆方向に若干回転させ、第2連結軸113の位置を第2連結溝123の溝底面123aから離間する方向に移動させて、図6(c)の状態から図6(b)の状態とし、連通部124aの位置に合わせる。次に、図6(a)の斜め下方向に先端長尺部材201を引くと、第2連結軸113が連通部124aを通過し、さらに、第1連結軸112及び第2連結軸113が第1連結溝122から離脱する。このように、両者の接続の解除も極めて容易である。 The long tip member 201 and the long intermediate member 202 are connected as described above and used as one grip 200, but after use, for example, 1000 in a storage case as shown in FIGS. 8 and 9. , Each is removed and housed. When removing the operation button 118, move the operation button 118 to the other end 202b side of the intermediate long member 202 by hand. As a result, the lock shaft 115 is separated from the first connecting groove 122. With the lock shaft 115 detached from the first connecting groove 122, the long tip member 201 is slightly rotated in the direction opposite to that at the time of connection, and the position of the second connecting shaft 113 is set to the groove bottom surface 123a of the second connecting groove 123. The state is changed from the state of FIG. 6 (c) to the state of FIG. 6 (b) by moving in a direction away from the communication portion 124a. Next, when the long tip member 201 is pulled diagonally downward in FIG. 6A, the second connecting shaft 113 passes through the communication portion 124a, and the first connecting shaft 112 and the second connecting shaft 113 are seconded. 1 Disengage from the connecting groove 122. In this way, it is extremely easy to disconnect the two.

なお、中間長尺部材202の後端部202b側の第2継手部120に、後端長尺部材203の先端部203a側の第1継手部110を接続する手順、及び、接続を解除する手順も上記と同様である。 A procedure for connecting the first joint portion 110 on the front end portion 203a side of the rear end long member 203 to the second joint portion 120 on the rear end portion 202b side of the intermediate long member 202, and a procedure for disconnecting the connection. Is the same as above.

ここで、図8及び図9に示した保管ケース1000は、鍬、スコップ、レーキなどの複数の道具20を収容可能なもので、ヘッド部分20A、グリップ200とに分離して収容されている。グリップ200は、複数の長尺部材に分割されている。上記のように、グリップ200は、分割された複数の長尺部材を接続して用いられるが、複数の道具20が同時に使用されるとは限らないため、グリップ200となる分割された長尺部材はヘッド部分20Aの種類よりも少ない数とすることもできる。すなわち、グリップ200を共通化することで、保管スペースの省スペース化を図ることができる。本実施形態では、分割状態の長尺部材をヘッド部分20Aに速やかに接続してグリップ200とすることができるため、このように分割して保管しても必要に応じて速やかに作業に取りかかることができる。 Here, the storage case 1000 shown in FIGS. 8 and 9 can accommodate a plurality of tools 20 such as a hoe, a shovel, and a rake, and is separately accommodated in the head portion 20A and the grip 200. The grip 200 is divided into a plurality of long members. As described above, the grip 200 is used by connecting a plurality of divided long members, but since a plurality of tools 20 are not always used at the same time, the divided long members serving as the grip 200 are used. Can be a smaller number than the type of head portion 20A. That is, by sharing the grip 200, it is possible to save the storage space. In the present embodiment, since the long member in the divided state can be quickly connected to the head portion 20A to form the grip 200, even if the divided members are stored in this way, the work can be started promptly as needed. Can be done.

10 ジョイント構造
110 第1継手部110
111 突出片
112 第1連結軸
113 第2連結軸
114 間隙
115 ロックシャフト
116 シャフト挿入孔
120 第2継手部
121 挿入部
122 第1連結溝
123 第2連結溝
124 隔壁部
124a 連通部
20 道具
20A ヘッド部分
200 グリップ
201 先端長尺部材
202 中間長尺部材
203 後端長尺部材
10 Joint structure 110 First joint portion 110
111 Protruding piece 112 1st connecting shaft 113 2nd connecting shaft 114 Gap 115 Lock shaft 116 Shaft insertion hole 120 2nd joint 121 Insertion 122 1st connecting groove 123 2nd connecting groove 124 Bulk partition 124a Communication part 20 Tool 20A Head Part 200 Grip 201 Tip long member 202 Intermediate long member 203 Rear end long member

Claims (4)

長尺な複数の部材を長手方向に沿って取り外し可能に接続するジョイント構造であって、
前記複数の部材のうち接続対象となっている一方の部材の接続側端部に二股状に形成された2つの突出片と、前記各突出片の対向面間において異なる位置に掛け渡された複数の連結軸と、前記突出片の基部側から前記対向面間の間隙に出没可能に設けられたロックシャフトとを有する第1継手部と、
前記一方の部材に接続される他方の部材の接続側端部に設けられ、前記各突出片の対向面間の間隙に挿入され、前記各対向面により軸心回りの動きが規制される挿入部と、前記挿入部の先端縁から長手方向に沿って切り欠かれるように形成され、前記複数の連結軸がそれぞれ係合する複数の連結溝とを有する第2継手部と
を備え、
接続時に、前記ロックシャフトが、前記複数の連結溝のうち、前記挿入部の先端縁に開口する開口端寄りの連結溝に挿入され、前記各突出片の前記各対向面の対面方向に対する、前記一方の部材及び前記他方の部材の直径方向への動きが規制されることを特徴とするジョイント構造。
It is a joint structure that removably connects multiple long members along the longitudinal direction.
Two projecting pieces formed in a bifurcated shape at the connection side end of one of the plurality of members to be connected, and a plurality of members hung at different positions between the facing surfaces of the projecting pieces. A first joint portion having a connecting shaft of the above and a lock shaft provided so as to appear and disappear in a gap between the facing surfaces from the base side of the protruding piece.
An insertion portion provided at the connection side end of the other member connected to the one member, inserted into the gap between the facing surfaces of the protruding pieces, and the movement around the axis is restricted by the facing surfaces. And a second joint portion formed so as to be cut out along the longitudinal direction from the tip edge of the insertion portion and having a plurality of connecting grooves in which the plurality of connecting shafts are engaged with each other.
At the time of connection, the lock shaft is inserted into a connecting groove near the opening end that opens at the tip edge of the insertion portion among the plurality of connecting grooves, and the protruding piece is said to have a facing direction with respect to each facing surface. A joint structure characterized in that the movement of one member and the other member in the radial direction is restricted.
前記第1継手部の複数の連結軸は、前記各突出片の対向面間において異なる位置に掛け渡された第1及び第2連結軸からなり、
前記第2継手部の複数の連結溝は、前記挿入部の先端縁側に開口する第1連結溝と、前記第1連結溝に、連通部を備えた隔壁部を隔てて隣接する位置に形成された第2連結溝とをからなり、
前記第2連結軸が前記連通部を介して前記第2連結溝に挿入され、前記第1連結軸が前記第1連結溝に挿入される請求項1記載のジョイント構造。
The plurality of connecting shafts of the first joint portion are composed of first and second connecting shafts laid at different positions between the facing surfaces of the protruding pieces.
The plurality of connecting grooves of the second joint portion are formed at positions adjacent to the first connecting groove that opens on the tip edge side of the insertion portion and the first connecting groove with a partition wall portion provided with a communication portion. It consists of a second connecting groove.
The joint structure according to claim 1, wherein the second connecting shaft is inserted into the second connecting groove via the communicating portion, and the first connecting shaft is inserted into the first connecting groove.
前記長尺な複数の部材として、相互に接続されることにより、道具のグリップを構成するものに適用される請求項1又は2記載のジョイント構造。 The joint structure according to claim 1 or 2, wherein the long plurality of members are connected to each other to form a grip of a tool. ヘッド部分に対して長尺なグリップが連結されてなる道具において、
前記グリップが、長手方向に沿って取り外し可能に接続される複数の長尺な部材からなり、前記複数の長尺な部材が、請求項1又は2のいずれか1に記載のジョイント構造により接続可能となっていることを特徴とする道具。
In a tool where a long grip is connected to the head part
The grip comprises a plurality of elongated members that are detachably connected along the longitudinal direction, and the plurality of elongated members can be connected by the joint structure according to any one of claims 1 or 2. A tool characterized by being.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3057868U (en) 1998-09-21 1999-06-08 安生 許 Replaceable saw blade
JP3199966U (en) 2012-10-05 2015-10-01 アンドラデス,エンリケ ベラ Multi-function drilling tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250079Y2 (en) * 1974-03-04 1977-11-14

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3057868U (en) 1998-09-21 1999-06-08 安生 許 Replaceable saw blade
JP3199966U (en) 2012-10-05 2015-10-01 アンドラデス,エンリケ ベラ Multi-function drilling tool

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