JP6815625B2 - Loop lock and chain for connection - Google Patents

Loop lock and chain for connection Download PDF

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JP6815625B2
JP6815625B2 JP2016213809A JP2016213809A JP6815625B2 JP 6815625 B2 JP6815625 B2 JP 6815625B2 JP 2016213809 A JP2016213809 A JP 2016213809A JP 2016213809 A JP2016213809 A JP 2016213809A JP 6815625 B2 JP6815625 B2 JP 6815625B2
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coil portion
connecting chain
chain member
coil
wire
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啓示 大雅
啓示 大雅
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株式会社クロップス
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Description

本発明は、ループ錠、及び連結用チェーンに関する。 The present invention relates to a loop lock and a connecting chain.

二輪車や鞄等を一時的に放置する際の盗難防止として、いわゆるループ錠が広く利用されている。また、携帯電話や高所での作業者が使用する工具等の落下防止用等として、一端を被服や鞄等に係止して、他端を携帯電話や工具等に係止するワイヤコードが公知である。 So-called loop locks are widely used to prevent theft when motorcycles, bags, etc. are temporarily left unattended. In addition, a wire cord that locks one end to clothing or a bag and the other end to a mobile phone or tool to prevent the tool used by a mobile phone or a worker at a high place from falling is provided. It is known.

このようなループ錠やワイヤコードは、容易に破断や切断等されないよう芯材としてのワイヤと、このワイヤ保護するために被覆される合成樹脂とで構成され、断面形状は略円形に形成されている。 Such a loop lock or wire cord is composed of a wire as a core material so as not to be easily broken or cut, and a synthetic resin coated to protect the wire, and has a substantially circular cross-sectional shape. There is.

また、これらのループ錠やワイヤコードは、伸縮可能なコイルワイヤであるものが利便性がよいとして、広く普及している。すなわち、ループ錠やワイヤコードの長手方向の一部を螺旋形状に形成し、コイルスプリングとなるコイル部を有するものである。コイル部を有することで、平時はコイル部が収縮し、コンパクトな形態となるが、使用時にはコイル部が伸長することで、ループ錠は二輪車の車輪のスポーク間に伸張したコイル部を通して施錠することにより車輪を回転不能にし、或いは二輪車や鞄等を構造物等に係止することができる。また、ワイヤコードは、被服等に連結した携帯電話や工具等を、被服等からの連結を解除することなく、コイル部が伸長することで使用可能な状態にできる。 Further, these loop locks and wire cords are widely used because those which are telescopic coil wires are convenient. That is, it has a coil portion that is a coil spring by forming a part of the loop lock or wire cord in the longitudinal direction into a spiral shape. By having the coil part, the coil part contracts in normal times and becomes a compact form, but when in use, the coil part extends, and the loop lock is locked through the extended coil part between the spokes of the wheels of the motorcycle. This makes it possible to make the wheels non-rotatable, or to lock a motorcycle, a bag, or the like to a structure or the like. Further, the wire cord can be used by extending the coil portion of a mobile phone, a tool, or the like connected to the clothes or the like without disconnecting the connection from the clothes or the like.

このコイル部は、伸縮を繰り返すことによって、螺旋形状が崩れてくる。すなわち、当初は密に巻回していたコイル部の螺旋形状が、伸縮を繰り返されることにより、或いは強力に引っ張られることにより、塑性変形して元の密に巻回する螺旋形状に復元することができなくなるおそれがある。 The spiral shape of this coil portion collapses due to repeated expansion and contraction. That is, the spiral shape of the coil portion, which was initially tightly wound, can be plastically deformed and restored to the original densely wound spiral shape by repeated expansion and contraction or by being pulled strongly. It may not be possible.

このような事態を防ぐため、特許文献1及び特許文献2は、ワイヤを巻回し、焼入れ・冷却した後、さらに巻回方向を反転して巻回することでコイル部の復元力と引張強度を増大させたワイヤコイルを開示している。この発明では、製造コストが増大し、また、ワイヤや合成樹脂の可塑性の影響を排除できないため、いずれコイル部は復元力を失い、当初の密に巻回していた螺旋形状に戻れなくなるおそれがある。 In order to prevent such a situation, Patent Document 1 and Patent Document 2 determine the restoring force and tensile strength of the coil portion by winding the wire, quenching and cooling the wire, and then reversing the winding direction and winding the wire. The increased wire coil is disclosed. In the present invention, the manufacturing cost increases, and the influence of the plasticity of the wire or synthetic resin cannot be eliminated. Therefore, the coil portion may eventually lose the restoring force and may not be able to return to the originally tightly wound spiral shape. ..

特開平11−169984号公報Japanese Unexamined Patent Publication No. 11-169984 特開2003−19530号公報Japanese Unexamined Patent Publication No. 2003-19530

本発明は、このような事情に基づいてなされたものであり、伸縮を繰り返してもコイル部が復元力を失わず、螺旋形状に復元することができるループ錠、及び連結用チェーン部材を提供することを目的とする。 The present invention has been made based on such circumstances, and provides a loop lock capable of restoring the coil portion into a spiral shape without losing the restoring force even after repeated expansion and contraction, and a chain member for connection. The purpose is.

上記課題を解決するためになされた本発明に係るループ錠は、長手方向に伸縮可能なコイル部を有する長尺状の連結用チェーン部材と、この連結用チェーン部材の両端に配設される一対の係合部とを備え、一対の係合部同士を係合させることで環状の施錠状態となるループ錠であって、上記コイル部が、芯材となるワイヤと、このワイヤを被覆する合成樹脂層とを有し、上記コイル部の外縁が角部を有する。 The loop lock according to the present invention, which has been made to solve the above problems, has a long connecting chain member having a coil portion that can be expanded and contracted in the longitudinal direction, and a pair arranged at both ends of the connecting chain member. A loop lock that is provided with an engaging portion of the above and is in an annular locked state by engaging a pair of engaging portions with each other. The coil portion is a composite of a wire serving as a core material and a wire covering the wire. It has a resin layer, and the outer edge of the coil portion has a corner portion.

また、上記課題を解決するためになされた本発明に係る連結用チェーン部材は、長手方向に伸縮可能なコイル部を有する長尺状の連結用チェーン部材であって、上記コイル部が、芯材となるワイヤと、このワイヤを被覆する合成樹脂層とを有し、上記コイル部の外縁が角部を有する。 Further, the connecting chain member according to the present invention made to solve the above problems is a long connecting chain member having a coil portion that can be expanded and contracted in the longitudinal direction, and the coil portion is a core material. The wire and the synthetic resin layer covering the wire are provided, and the outer edge of the coil portion has a corner portion.

コイル部の外縁が角部を有することにより、コイル部は螺旋形状に復元する力が増強される。つまり、連結用チェーン部材の長手方向に張力が付与され、コイル部が伸長した場合、コイル部の合成樹脂層の外縁に捻りが加わり、角部の形が変形する。張力が除去されると、上述のように変形した角部が元の形に戻ろうとするため、コイル部のコイルスプリングとしての復元力に、さらにコイル部外縁の角部が元の形に戻ろうとする復元力が加わり、螺旋形状に復元する力が強力となる。このため、伸縮を繰り返した場合、或いは大きな張力を与えられた場合でも、螺旋形状に復元することができる。 Since the outer edge of the coil portion has a corner portion, the force for restoring the coil portion to a spiral shape is enhanced. That is, when tension is applied in the longitudinal direction of the connecting chain member and the coil portion is extended, twist is applied to the outer edge of the synthetic resin layer of the coil portion, and the shape of the corner portion is deformed. When the tension is removed, the deformed corners as described above try to return to their original shape, so the restoring force of the coil as a coil spring and the corners on the outer edge of the coil try to return to their original shape. The restoring force is added, and the force to restore the spiral shape becomes stronger. Therefore, even when the expansion and contraction are repeated or a large tension is applied, the spiral shape can be restored.

上記コイル部の断面が三角形、矩形又は半円形であるとよい。断面形状が三角形、矩形又は半円形であると、コイル部外縁の角部が鋭角、又は直角に形成されるため、より強い復元力が得られる。 The cross section of the coil portion may be triangular, rectangular or semicircular. When the cross-sectional shape is triangular, rectangular or semi-circular, the corners of the outer edge of the coil portion are formed at an acute angle or a right angle, so that a stronger restoring force can be obtained.

コイル部が芯材として複数のワイヤを備えるとよい。複数のワイヤを備えることにより、容易に切断・破断されることがないコイル部とすることができる。 It is preferable that the coil portion includes a plurality of wires as a core material. By providing a plurality of wires, it is possible to form a coil portion that is not easily cut or broken.

ワイヤがステンレス製の細線を集合して撚り合わせたものであるとよい。ステンレス製の細線を集合して撚り合わることにより、柔軟性があり、かつ強度に優れたワイヤとすることができる。 It is preferable that the wire is made of fine stainless steel wires assembled and twisted together. By aggregating and twisting thin stainless steel wires, it is possible to obtain a flexible and strong wire.

以上説明したように、本発明のループ錠及び連結用チェーン部材は、伸縮を繰り返してもコイル部が復元力を失わず、螺旋形状に復元することができる。 As described above, the loop lock and the connecting chain member of the present invention can be restored to a spiral shape without losing the restoring force of the coil portion even after repeated expansion and contraction.

本発明に係るループ錠の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the loop lock which concerns on this invention. 図1のループ錠の伸長状態を示す正面図である。It is a front view which shows the extended state of the loop lock of FIG. 本発明に係る連結用チェーン部材のコイル部の原状状態(収縮)を示す模式的拡大図である。It is a schematic enlarged view which shows the original state (shrinkage) of the coil part of the connecting chain member which concerns on this invention. 本発明に係る連結用チェーン部材のコイル部の伸長状態を示す模式的拡大図である。It is a schematic enlarged view which shows the extended state of the coil part of the connecting chain member which concerns on this invention. 本発明に係る連結用チェーン部材の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the chain member for connection which concerns on this invention. 図1のループ錠を施錠対象物に巻着・固定した状態を示す模式図である。It is a schematic diagram which shows the state which wound and fixed the loop lock of FIG. 1 to the object to be locked. 図1のループ錠のコイル部の模式的断面拡大図である。It is a schematic cross-sectional enlarged view of the coil part of the loop lock of FIG. 図7と異なるループ錠のコイル部を示す実施形態の模式的断面図である。It is a schematic cross-sectional view of the embodiment which shows the coil part of the loop lock different from FIG. 図7と異なるループ錠のコイル部を示す実施形態の模式的断面図である。It is a schematic cross-sectional view of the embodiment which shows the coil part of the loop lock different from FIG. 本発明に係る連結用チェーン部材の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the chain member for connection which concerns on this invention.

以下、適宜図面を参照しつつ、本発明の実施の形態を詳説する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

[第一実施形態]
図1のループ錠1は、長手方向に伸縮可能なコイル部2を有する長尺状の連結用チェーン部材3と、連結用チェーン部材3の両端に配設される一対の係合部5,6とを備える。当該ループ錠1は、一対の係合部5,6同士を係合させることで環状の施錠状態が得られる。具体的には、一対の係合部5,6のうち、一方(図1の上方)の係合部5が開閉制御可能なフック14を有するロック部材から構成され、他方(図1の下方)の係合部6がフック14を係止できる環状部位10を有する剛性部材から構成され、図6に示すように、施錠対象物Pに連結用チェーン部材3を巻き付け、フック14を係合部6の環状部位10に係止し、フック14を閉塞することで、施錠状態を得ることができる。
[First Embodiment]
The loop lock 1 of FIG. 1 has a long connecting chain member 3 having a coil portion 2 that can be expanded and contracted in the longitudinal direction, and a pair of engaging portions 5 and 6 arranged at both ends of the connecting chain member 3. And. The loop lock 1 can be in an annular locked state by engaging the pair of engaging portions 5 and 6 with each other. Specifically, of the pair of engaging portions 5 and 6, one (upper of FIG. 1) engaging portion 5 is composed of a lock member having a hook 14 capable of opening / closing control, and the other (lower of FIG. 1). The engaging portion 6 of the above is composed of a rigid member having an annular portion 10 capable of locking the hook 14, and as shown in FIG. 6, the connecting chain member 3 is wound around the locking object P, and the hook 14 is engaged with the engaging portion 6. A locked state can be obtained by locking the annular portion 10 of the above and closing the hook 14.

<連結用チェーン部材>
連結用チェーン部材3は、長手方向に伸縮可能なコイル部2と、コイル部2の両端から長手方向(コイル部2の軸方向)に延出される一対の延出部分8,9とを有している。この延出部分8に係合部5が、延出部分9に係合部6が接続されている。
<Chain member for connection>
The connecting chain member 3 has a coil portion 2 that can be expanded and contracted in the longitudinal direction, and a pair of extending portions 8 and 9 that extend in the longitudinal direction (axial direction of the coil portion 2) from both ends of the coil portion 2. ing. The engaging portion 5 is connected to the extending portion 8, and the engaging portion 6 is connected to the extending portion 9.

連結用チェーン部材3は、特に限定されるものではなく、ワイヤとこのワイヤを被覆する合成樹脂とを備えるループ錠等、公知の材質を用いることができる。本実施形態の連結用チェーン部材3は、図7に示すように、ワイヤ4とワイヤ4の外周を被覆する合成樹脂層7とを有し、合成樹脂層7の表面(外周)から垂直に切り取った断面の形状は矩形である。 The connecting chain member 3 is not particularly limited, and a known material such as a loop lock including a wire and a synthetic resin covering the wire can be used. As shown in FIG. 7, the connecting chain member 3 of the present embodiment has a wire 4 and a synthetic resin layer 7 that covers the outer periphery of the wire 4, and is cut vertically from the surface (outer circumference) of the synthetic resin layer 7. The shape of the cross section is rectangular.

本実施形態の連結用チェーン部材3は、芯材としてのワイヤを2本有する。このように、連結用チェーン部材3、特にコイル部2においては、複数のワイヤを備えることが好ましい。複数のワイヤを備えることにより、連結用チェーン部材3、及びコイル部2を強度に優れたものとすることができる。強度が優れたものとするため、ワイヤの径を増大させることも考えられるが、屈曲性が悪化すること、連結用チェーン部材3自体の大きさ・重さが嵩張り、取り扱いが悪くなるおそれがある。 The connecting chain member 3 of the present embodiment has two wires as a core material. As described above, it is preferable that the connecting chain member 3, particularly the coil portion 2, is provided with a plurality of wires. By providing a plurality of wires, the connecting chain member 3 and the coil portion 2 can be made excellent in strength. It is conceivable to increase the diameter of the wire in order to make it excellent in strength, but there is a risk that the flexibility will deteriorate and the size and weight of the connecting chain member 3 itself will be bulky, resulting in poor handling. is there.

ワイヤ4の構造は、特に限定されるものではないが、複数の鋼線4aから構成される1本の芯線4bと、複数の鋼線4aから構成される複数本のストランド4cと、芯線4bとストランド4cとの間に挟入される間質材4dとを有する公知のものが採用可能である。 The structure of the wire 4 is not particularly limited, but one core wire 4b composed of a plurality of steel wires 4a, a plurality of strands 4c composed of a plurality of steel wires 4a, and a core wire 4b A known material having an interstitium material 4d sandwiched between the strand 4c and the strand 4c can be adopted.

芯線4b及びストランド4cを構成する最小単位の素線である鋼線4aの素材としては、特に限定されないが、ステンレス製の細線が好ましく、許容応力が高く、繰り返し荷重に対する高い耐久力を有し、コイル部2における弾性に優れるピアノ鋼線であることがより好ましい。 The material of the steel wire 4a, which is the smallest unit of the core wire 4b and the strand 4c, is not particularly limited, but a fine stainless steel wire is preferable, has a high allowable stress, and has high durability against repeated loads. It is more preferable that the coil portion 2 is a piano steel wire having excellent elasticity.

芯線4b及びストランド4cは、鋼線4aを撚り合わせて形成されるのが好ましい。撚り合わせることで、ワイヤ4の柔軟性と強度が得られ、屈曲疲労等により解れて折れた鋼線4aが合成樹脂層7から飛び出すこともなく、製造工程におけるワイヤ4の取り扱い性も向上する。 The core wire 4b and the strand 4c are preferably formed by twisting the steel wires 4a. By twisting, the flexibility and strength of the wire 4 can be obtained, the steel wire 4a that has been unraveled and broken due to bending fatigue or the like does not pop out from the synthetic resin layer 7, and the handleability of the wire 4 in the manufacturing process is improved.

ループ錠1としての連結用チェーン部材3の全長(長手方向の長さ)は、特に限定されるものではないが、コイル部2の原状状態(図1参照)で、12cm以上30cm以下が好ましい。また、コイル部2の伸長状態(図2参照)で、1.2m以上3m以下が好ましい。連結用チェーン部材3の全長が上記下限に満たないと、使用時において施錠対象物Pにループ錠1を巻き付ける作業が困難となるおそれ等がある。一方、連結用チェーン部材3の全長が上記上限を超えると、不使用時においてループ錠1の収容や持ち運び等が困難となるおそれ等がある。 The total length (length in the longitudinal direction) of the connecting chain member 3 as the loop lock 1 is not particularly limited, but is preferably 12 cm or more and 30 cm or less in the original state of the coil portion 2 (see FIG. 1). Further, in the extended state of the coil portion 2 (see FIG. 2), it is preferably 1.2 m or more and 3 m or less. If the total length of the connecting chain member 3 does not meet the above lower limit, it may be difficult to wind the loop lock 1 around the object to be locked P during use. On the other hand, if the total length of the connecting chain member 3 exceeds the above upper limit, it may be difficult to accommodate or carry the loop lock 1 when not in use.

一対の延出部分8,9の長さ(長手方向の長さ)は、特に限定されるものではないが、2.5cm以上15cm以下が好ましい。この延出部分8,9の長さが上記下限に満たないと、係合部5,6との接続が困難となるおそれ等がある。一方、延出部分8,9の長さが上記上限を超えると、ループ錠1の不使用時に、ループ錠1の収容や持ち運び等が困難となるおそれ等がある。 The length (length in the longitudinal direction) of the pair of extending portions 8 and 9 is not particularly limited, but is preferably 2.5 cm or more and 15 cm or less. If the lengths of the extending portions 8 and 9 do not meet the above lower limit, it may be difficult to connect to the engaging portions 5 and 6. On the other hand, if the lengths of the extending portions 8 and 9 exceed the above upper limit, it may be difficult to accommodate or carry the loop lock 1 when the loop lock 1 is not used.

(コイル部)
コイル部2は、螺旋形状で形成され、螺旋の軸方向に伸縮可能な弾性を有している。コイル部2は、ループ錠1の使用時においては、図6に示すように施錠対象物Pに巻き付け可能に伸長し、当該ループ錠1の不使用時においては、図1に示すようにコンパクトな螺旋形状となる。
(Coil part)
The coil portion 2 is formed in a spiral shape and has elasticity that allows expansion and contraction in the axial direction of the spiral. The coil portion 2 extends so as to be wound around the object to be locked P as shown in FIG. 6 when the loop lock 1 is used, and is compact as shown in FIG. 1 when the loop lock 1 is not used. It has a spiral shape.

コイル部2は、ワイヤ4を合成樹脂が被覆しながら合成樹脂層7を形成しつつ、螺旋形状に成形することで形成される。また、コイル部2は、原状状態で密に巻回されている、すなわち、図3に示すように、コイル部2の隣接する部位同士が当接している。このコイル部2は、コイルスプリングとして設けられ、つまり原状状態(力が作用していない状態)において収縮状態であり、張力を付与させると螺旋の軸方向に伸長し、この伸長状態から張力を除去すると復元力によって原状復帰(収縮)するよう設けられている。また、上記延出部分8,9は、作成時にはコイル部2と同時に螺旋形状に成形された後に、軸方向に延伸されることで軸方向に沿って伸ばされた形状を有している。 The coil portion 2 is formed by forming the synthetic resin layer 7 while covering the wire 4 with the synthetic resin and forming the coil portion 2 into a spiral shape. Further, the coil portion 2 is tightly wound in the original state, that is, as shown in FIG. 3, adjacent portions of the coil portion 2 are in contact with each other. The coil portion 2 is provided as a coil spring, that is, in a contracted state in the original state (a state in which no force is applied), and when tension is applied, the coil portion 2 extends in the axial direction of the spiral, and the tension is removed from this extended state. Then, it is provided so as to return to its original state (contract) by the restoring force. Further, the extending portions 8 and 9 have a shape that is formed into a spiral shape at the same time as the coil portion 2 at the time of production and then stretched in the axial direction to be stretched along the axial direction.

コイル部2は、軸方向のみならず径方向(長手方向に直交する平面方向)にも拡縮可能に設けられている。つまり、コイル部2をコイル部2の内径よりも大きい部材に巻き付けると拡径し、当該部材から離脱すると弾性復元力によって原状復帰(縮径)する。 The coil portion 2 is provided so as to be expandable and contractible not only in the axial direction but also in the radial direction (the plane direction orthogonal to the longitudinal direction). That is, when the coil portion 2 is wound around a member larger than the inner diameter of the coil portion 2, the diameter is expanded, and when the coil portion 2 is separated from the member, the original state is restored (reduced diameter) by the elastic restoration force.

本実施形態では、図7に示すように、コイル部2の断面形状は矩形で、4角の角部2aを有する。このように、断面形状が角部2aを有する、すなわちコイル部2の外縁が角部2aを有することで、密に巻回する螺旋形状に復元する力が増強される。具体的には、図4に示すように、コイル部2に張力が加わると、伸長するのと同時に、コイル部2の断面に捻りが加わり、断面形状が変形する。張力が取り除かれると、コイルスプリングとして螺旋形状に成形されたコイル部2自身の螺旋形状への復元力に加え、コイル部2の変形した断面形状が元の形状に戻ろうとする復元力、すなわち歪んだ角部2aが原状状態の角部2aの形に戻ろうとする力が発揮されるため、密に巻回する螺旋形状への復元力が強く働く。従って、コイル部2が伸縮を繰り返した場合、或いは大きな張力を与えられ伸びきった状態とされても、コイル部2は密に巻回する螺旋形状に復元することができる。さらに、歪んだ角部2aが原状状態の角部2aの形に戻ろうとする力が強力であるため、連結用チェーン部材3がコイル部2で絡まった場合でも、コイル部2が完全に伸びきるまで伸張させて張力を取り除くことで、コイル部2は正常な螺旋形状に復元することができる。なお、「角」とは、平行でない2本の直線、又は曲線と直線との交点のことを言い、「角部」とは、コイル部2において、上記角の他、当該角がコイル部2の断面の外周長の5%以内で面取り等されている場合など、不連続な直線、又は不連続な直線と曲線で構成されたものも含まれる。 In the present embodiment, as shown in FIG. 7, the coil portion 2 has a rectangular cross-sectional shape and has four corner portions 2a. As described above, when the cross-sectional shape has the corner portion 2a, that is, the outer edge of the coil portion 2 has the corner portion 2a, the force for restoring the coil portion 2 to a densely wound spiral shape is enhanced. Specifically, as shown in FIG. 4, when tension is applied to the coil portion 2, at the same time as the coil portion 2 is stretched, a twist is applied to the cross section of the coil portion 2 and the cross-sectional shape is deformed. When the tension is removed, in addition to the restoring force of the coil portion 2 itself, which is formed into a spiral shape as a coil spring, to the spiral shape, the restoring force of the deformed cross-sectional shape of the coil portion 2 to return to the original shape, that is, distortion. Since the force of the corner 2a to return to the original shape of the corner 2a is exerted, the force of restoring the tightly wound spiral shape works strongly. Therefore, even if the coil portion 2 is repeatedly expanded and contracted, or even if a large tension is applied to the coil portion 2 and the coil portion 2 is in a fully extended state, the coil portion 2 can be restored to a spiral shape that winds tightly. Further, since the force of the distorted corner portion 2a to return to the original shape of the corner portion 2a is strong, the coil portion 2 is completely extended even when the connecting chain member 3 is entangled with the coil portion 2. The coil portion 2 can be restored to a normal spiral shape by stretching the coil portion 2 to remove the tension. The "corner" refers to two non-parallel straight lines or the intersection of a curved line and the straight line, and the "corner portion" refers to the coil portion 2 in the coil portion 2 in addition to the above angle. It also includes discontinuous straight lines or those composed of discontinuous straight lines and curves, such as when chamfered within 5% of the outer peripheral length of the cross section of.

コイル部2の外縁の角部2aの数は、6角以下が好ましく、4角以下がより好ましい。具体的には、コイル部2の断面形状で図7に示すような矩形、図8Bに示すような三角形又は図8Aに示すような半円形とするのがよい。角部2aのなす角が直角以下である方が、変形した角部2aが原状状態の形に戻ろうとする復元力が強く働く。一方、断面形状が六角形以上とすると、角部2aの角度が大きく鈍角となり、変形した角部2aの復元力が弱くなり、塑性変形の影響を受けやすくなる。 The number of corners 2a on the outer edge of the coil portion 2 is preferably hexagon or less, and more preferably four or less. Specifically, the cross-sectional shape of the coil portion 2 is preferably a rectangle as shown in FIG. 7, a triangle as shown in FIG. 8B, or a semicircle as shown in FIG. 8A. When the angle formed by the corner portion 2a is equal to or less than a right angle, the restoring force that causes the deformed corner portion 2a to return to its original shape acts stronger. On the other hand, when the cross-sectional shape is hexagonal or larger, the angle of the corner portion 2a becomes large and obtuse, the restoring force of the deformed corner portion 2a becomes weak, and the corner portion 2a is easily affected by plastic deformation.

コイル部2の断面の外周長(外形寸法)は特に限定されるものではないが、ループ錠1として用いられ断面形状を矩形とする本実施形態では、例えば短辺が1mm以上5mm以下、長辺が2mm以上10mm以下とすることができる。コイル部2の断面の外周長が上記下限に満たないと、耐久性等が劣るおそれがある。一方、コイル部2の断面の外周長が上記上限を超えると、コイル部2を伸長させるのに大きな張力が必要となり、ループ錠1を施錠対象物Pに巻き付ける作業性が悪くなる等のおそれがある。 The outer peripheral length (external dimensions) of the cross section of the coil portion 2 is not particularly limited, but in the present embodiment in which the cross section is rectangular and used as the loop lock 1, for example, the short side is 1 mm or more and 5 mm or less and the long side. Can be 2 mm or more and 10 mm or less. If the outer peripheral length of the cross section of the coil portion 2 does not meet the above lower limit, the durability and the like may be inferior. On the other hand, if the outer peripheral length of the cross section of the coil portion 2 exceeds the above upper limit, a large tension is required to extend the coil portion 2, and there is a risk that the workability of winding the loop lock 1 around the locked object P may deteriorate. is there.

コイル部2の内径は、特に限定されるものではなく、連結用チェーン部材3の全長、外周長、コイルの巻数等により適宜選択されるが、例えばコイル部2の平均内径(原状状態)として、5mm以上25mm以下とすることができる。 The inner diameter of the coil portion 2 is not particularly limited, and is appropriately selected depending on the total length, outer peripheral length, number of coil turns, etc. of the connecting chain member 3, but for example, the average inner diameter (original state) of the coil portion 2 is set. It can be 5 mm or more and 25 mm or less.

コイル部2の巻数は、特に限定されるものではなく、連結用チェーン部材3の全長、外周長、コイル部2の内径等により適宜選択されるが、例えばコイル部2の巻数(原状状態)として20回以上60回以下とすることができる。 The number of turns of the coil portion 2 is not particularly limited, and is appropriately selected depending on the total length of the connecting chain member 3, the outer peripheral length, the inner diameter of the coil portion 2, and the like. For example, the number of turns of the coil portion 2 (in the original state) is set. It can be 20 times or more and 60 times or less.

<係合部>
係合部6の剛性部材(以下、剛性部材6ということがある)は、既述のようにコイル部2の延出部分9の端部に配設される。この剛性部材6は、既述のように環状部位10を有するとともに、延出部分9に接続される軸部位11を有する。
<engagement part>
The rigid member of the engaging portion 6 (hereinafter, may be referred to as a rigid member 6) is arranged at the end of the extending portion 9 of the coil portion 2 as described above. The rigid member 6 has an annular portion 10 as described above, and also has a shaft portion 11 connected to the extension portion 9.

剛性部材6の材質は特に限定されるものではなく、従来のループ錠1に用いられる材質を用いることができ、例えば、金属製の本体に樹脂をコーティングしたもの等が用いられる。 The material of the rigid member 6 is not particularly limited, and the material used for the conventional loop lock 1 can be used. For example, a metal body coated with resin is used.

剛性部材6と延出部分9との接続は、圧着によってなされている。具体的には、圧着される延出部分9の部分は合成樹脂層7を有しておらず、内部構造が露出しており、この延出部分9の内部構造を外嵌する金属製筒状部位を軸部位11が有している。そして、この金属製筒状部位がかしめられることで、剛性部材6と延出部分9とが圧着されている。また、当該ループ錠1は、この剛性部材6と延出部分9との圧着部分を被覆する円筒状の被覆チューブ12を有している。 The connection between the rigid member 6 and the extending portion 9 is made by crimping. Specifically, the portion of the extension portion 9 to be crimped does not have the synthetic resin layer 7, and the internal structure is exposed, and the internal structure of the extension portion 9 is fitted into a metal tubular shape. The shaft portion 11 has a portion. Then, the rigid member 6 and the extending portion 9 are crimped by crimping the metal tubular portion. Further, the loop lock 1 has a cylindrical covering tube 12 that covers a crimping portion between the rigid member 6 and the extending portion 9.

剛性部材6の長さ(長手方向の長さ)は、特に限定されるものではないが、剛性部材6の長さとしては、4cm以上15cm以下が好ましい。剛性部材6の長さが上記下限を満たさないと、施錠状態を得るためにロック部材5を剛性部材6に係止することが困難になるおそれ等がある。一方、剛性部材6が上記上限を超えると、当該ループ錠1のコンパクトな収納状態を得ることが困難になるおそれ等がある。 The length of the rigid member 6 (length in the longitudinal direction) is not particularly limited, but the length of the rigid member 6 is preferably 4 cm or more and 15 cm or less. If the length of the rigid member 6 does not satisfy the above lower limit, it may be difficult to lock the lock member 5 to the rigid member 6 in order to obtain a locked state. On the other hand, if the rigid member 6 exceeds the above upper limit, it may be difficult to obtain a compact stored state of the loop lock 1.

剛性部材6の環状部位10の形状、内径等は特に限定されるものではないが、この環状部位10の長手方向の内径(環状部位10の孔の長手方向の径)としては、2.5cm以上10cm以下が好ましい。環状部位10の長手方向の内径が上記下限未満であると、施錠状態を得るためにロック部材5を剛性部材6に係止することが困難になるおそれ等がある。一方、環状部位10の長手方向の内径が上記上限を超えると、剛性部材6が大きくなり過ぎるおそれ等がある。 The shape, inner diameter, etc. of the annular portion 10 of the rigid member 6 are not particularly limited, but the inner diameter of the annular portion 10 in the longitudinal direction (diameter of the hole of the annular portion 10 in the longitudinal direction) is 2.5 cm or more. It is preferably 10 cm or less. If the inner diameter of the annular portion 10 in the longitudinal direction is less than the above lower limit, it may be difficult to lock the lock member 5 to the rigid member 6 in order to obtain a locked state. On the other hand, if the inner diameter of the annular portion 10 in the longitudinal direction exceeds the above upper limit, the rigid member 6 may become too large.

ロック部材の係合部5(以下、ロック部材5ということがある)は、延出部分8の端部に配設されている。具体的には、ロック部材5の接続孔13aに挿通された延出部分8の一端が折り返されて、この延出部分8の一端が延出部分8の中央部に固定されて、延出部分8の一端側が環状に設けられることで、延出部分8の一端にが回動可能に接続されている。 The engaging portion 5 of the lock member (hereinafter, may be referred to as the lock member 5) is arranged at the end of the extending portion 8. Specifically, one end of the extension portion 8 inserted into the connection hole 13a of the lock member 5 is folded back, and one end of the extension portion 8 is fixed to the central portion of the extension portion 8 so that the extension portion 8 is formed. By providing one end side of 8 in an annular shape, one end of the extending portion 8 is rotatably connected.

ロック部材5としては、従来のループ錠1に用いられるロック機構を用いることができる。本実施形態のロック部材5は、連結用チェーン部材3に接続するための上記接続孔13aを有するボディ部13と、上記フック14と、フック14の開閉を制御するゲート部15と、フック14及びゲート部15の施錠及び解錠を調整する施錠・解錠制御機構とを主として備える。 As the lock member 5, the lock mechanism used in the conventional loop lock 1 can be used. The lock member 5 of the present embodiment includes a body portion 13 having the connection hole 13a for connecting to the connecting chain member 3, the hook 14, a gate portion 15 for controlling the opening and closing of the hook 14, the hook 14, and the hook 14. It mainly includes a locking / unlocking control mechanism for adjusting the locking and unlocking of the gate portion 15.

上記ボディ部13は、連結用チェーン部材3に接続するための上記接続孔13aを有している。なお、接続孔13aは、ゲート部15及び施錠・解錠制御機構の機能を阻害しない任意の箇所に接続孔13aを穿設して形成される。また、ボディ部13は、後述するダイヤルの表面に記された番号を確認するための切欠部分(窓)を有する。 The body portion 13 has the connection hole 13a for connecting to the connecting chain member 3. The connection hole 13a is formed by drilling the connection hole 13a at an arbitrary position that does not interfere with the functions of the gate portion 15 and the locking / unlocking control mechanism. Further, the body portion 13 has a notch portion (window) for confirming the number written on the surface of the dial, which will be described later.

フック14は、ボディ部13から一体的に延出・湾曲する部材であり、剛性部材6の環状部位10に掛止することができる。このフック14の先端がゲート部15の先端に当接することで、フック14及びゲート部15によって閉塞状態が得られ、その結果、掛止された剛性部材6の環状部位10がロック部材5から離脱することを防ぐことができる。 The hook 14 is a member that integrally extends and curves from the body portion 13, and can be hooked on the annular portion 10 of the rigid member 6. When the tip of the hook 14 comes into contact with the tip of the gate portion 15, a closed state is obtained by the hook 14 and the gate portion 15, and as a result, the annular portion 10 of the hooked rigid member 6 is separated from the lock member 5. You can prevent it from happening.

ゲート部15は、その一部がボディ部13の内部に埋設され、その埋設部分において揺動可能にボディ部13に接続されている。なお、このゲート部15は、ボディ部13内部のバネ弾性体(図示省略)によって常時は閉塞方向に弾性付設されている。すなわち、ゲート部15の一部をバネ弾性体の弾性力に抗して押圧すると、ゲート部15の先端とフック14の先端との当接状態が解除され(開放状態となり)、押圧を解除するとバネ弾性体の弾性力によってゲート部15の先端とフック14の先端とが当接する(閉塞状態となる)。 A part of the gate portion 15 is embedded inside the body portion 13, and the gate portion 15 is swingably connected to the body portion 13 at the embedded portion. The gate portion 15 is always elastically attached in the closing direction by a spring elastic body (not shown) inside the body portion 13. That is, when a part of the gate portion 15 is pressed against the elastic force of the spring elastic body, the contact state between the tip of the gate portion 15 and the tip of the hook 14 is released (opened state), and the pressing is released. The elastic force of the spring elastic body causes the tip of the gate portion 15 and the tip of the hook 14 to come into contact with each other (closed state).

施錠・解錠制御機構は、フック14及びゲート部15の閉塞・開放を制御することで、ロック部材5の施錠及び解錠を調整する。具体的には、フック14及びゲート部15による閉塞状態を維持する制御が施錠制御であり、フック14及びゲート部15が自在に開閉可能な状態を維持する制御が解錠制御である。この施錠・解錠制御機構の種類としては、特に限定されないが、図示例のような複数個のダイヤルを備えるダイヤル式であることが好ましい。かかる施錠・解錠制御機構がダイヤル式の施錠・解錠制御機構であることにより、鍵や鍵穴を用意する必要がなく、施錠・解錠の取扱い及び利便性が向上する。 The lock / unlock control mechanism adjusts the lock / unlock of the lock member 5 by controlling the closing / opening of the hook 14 and the gate portion 15. Specifically, the control for maintaining the closed state by the hook 14 and the gate portion 15 is the locking control, and the control for maintaining the state in which the hook 14 and the gate portion 15 can be freely opened and closed is the unlocking control. The type of the locking / unlocking control mechanism is not particularly limited, but a dial type having a plurality of dials as shown in the illustrated example is preferable. Since the locking / unlocking control mechanism is a dial-type locking / unlocking control mechanism, it is not necessary to prepare a key or a keyhole, and the handling and convenience of locking / unlocking are improved.

<当該ループ錠の施錠対象物への巻着方法>
当該ループ錠1にあっては、図6に示すように、電柱、街路樹、柵、ガードレール等の施錠対象物Pに連結用チェーン部材3を巻き付け、フック14を剛性部材6の環状部位10に係止した後、フック14を閉塞することで、施錠状態を得ることができる。特に、当該ループ錠1はコイル部2を有するので、施錠対象物Pに連結用チェーン部材3を巻き付ける際にコイル部2を伸長させることができため、例えば施錠対象物Pが若干離間しているような場合であっても、上記施錠作業を容易かつ確実に行うことができる。
<How to wrap the loop lock around the object to be locked>
In the loop lock 1, as shown in FIG. 6, a connecting chain member 3 is wound around a lock object P such as a utility pole, a roadside tree, a fence, and a guardrail, and a hook 14 is attached to an annular portion 10 of the rigid member 6. A locked state can be obtained by closing the hook 14 after locking. In particular, since the loop lock 1 has the coil portion 2, the coil portion 2 can be extended when the connecting chain member 3 is wound around the lock target object P, so that the lock target object P is slightly separated, for example. Even in such a case, the locking operation can be easily and surely performed.

[第二実施形態]
図9の連結チェーン21は、長手方向に伸縮可能なコイル部22を有する長尺状の連結用チェーン部材23、連結用チェーン部材23の両端に係合部24,25を備える。当該連結チェーン21は、係合部24を、例えば被服、鞄等に係止し、係合部25を携帯電話、工具等に係止することで、被係止物同士を連結する。
[Second Embodiment]
The connecting chain 21 of FIG. 9 includes a long connecting chain member 23 having a coil portion 22 that can be expanded and contracted in the longitudinal direction, and engaging portions 24 and 25 at both ends of the connecting chain member 23. The connecting chain 21 connects the locked objects to each other by locking the engaging portion 24 to, for example, clothing, a bag, or the like, and locking the engaging portion 25 to a mobile phone, a tool, or the like.

<連結用チェーン部材>
連結用チェーン部材23は、長手方向に伸縮可能なコイル部22と、コイル部22の両端から長手方向(コイル部22の軸方向)に延出される一対の延出部分28,29を有している。この一対の延出部分28,29に係合部24及び係合部25が接続されている。延出部分28,29と係合部24,25との接続方法は、既述の接続方法の他、公知の接続方法を用いることができる。
<Chain member for connection>
The connecting chain member 23 has a coil portion 22 that can be expanded and contracted in the longitudinal direction, and a pair of extending portions 28, 29 extending in the longitudinal direction (axial direction of the coil portion 22) from both ends of the coil portion 22. There is. The engaging portion 24 and the engaging portion 25 are connected to the pair of extending portions 28 and 29. As the connection method between the extending portions 28, 29 and the engaging portions 24, 25, a known connection method can be used in addition to the connection method described above.

連結用チェーン部材23の材質は特に限定されるものではなく、既述の連結用チェーン部材3と同様に、芯材となるワイヤ24と、このワイヤ24を被覆する合成樹脂層27とを備えるもの等、公知のものを用いることができる。 The material of the connecting chain member 23 is not particularly limited, and like the above-mentioned connecting chain member 3, it includes a wire 24 as a core material and a synthetic resin layer 27 covering the wire 24. Etc., known ones can be used.

本実施形態の連結用チェーン部材23は、図7に示すように、芯材としてのワイヤ24を2本有する。このように、連結用チェーン部材23、特にコイル部22においては、複数のワイヤ24を備えることが好ましい。複数のワイヤを備えることにより、連結用チェーン部材23、及びコイル部22を強度に優れたものとすることができる。強度が優れたものとするため、ワイヤ24の径を増大させることも考えられるが、屈曲性が悪化すること、連結用チェーン部材23自体の大きさ・重さが嵩張り、取り扱いが悪くなるおそれがある。 As shown in FIG. 7, the connecting chain member 23 of the present embodiment has two wires 24 as core materials. As described above, it is preferable that the connecting chain member 23, particularly the coil portion 22, is provided with a plurality of wires 24. By providing a plurality of wires, the connecting chain member 23 and the coil portion 22 can be made excellent in strength. It is conceivable to increase the diameter of the wire 24 in order to make it excellent in strength, but there is a risk that the flexibility will deteriorate and the size and weight of the connecting chain member 23 itself will be bulky, resulting in poor handling. There is.

連結用チェーン部材23が備えるワイヤ24は、鋼線を撚り合わせて形成されるのが好ましい。撚り合わせることで、ワイヤ24の柔軟性と強度が得られ、屈曲疲労等により解れて折れた鋼線が合成樹脂層から飛び出すこともなく、製造工程におけるワイヤの取り扱い性も向上する。 The wire 24 included in the connecting chain member 23 is preferably formed by twisting steel wires. By twisting, the flexibility and strength of the wire 24 can be obtained, and the broken steel wire does not pop out from the synthetic resin layer due to bending fatigue or the like, and the handleability of the wire in the manufacturing process is improved.

連結用チェーン部材23の全長(長手方向の長さ)は特に限定されるものではないが、コイル部22の原状状態において、5cm以上75cm以下とすることができる。また、コイル部22の伸長状態において、10cm以上150cm以下とすることができる。 The total length (length in the longitudinal direction) of the connecting chain member 23 is not particularly limited, but can be 5 cm or more and 75 cm or less in the original state of the coil portion 22. Further, in the extended state of the coil portion 22, it can be 10 cm or more and 150 cm or less.

(コイル部)
コイル部22は、伸縮可能であり、連結チェーン21の使用時、すなわち、携帯電話で通話、或いは工具を使用する等の際には、伸長して、連結チェーン21の係止を解除することなく使用可能とする。また、携帯電話、工具等の不使用時においては、コイル部22がコンパクトに、密に巻回する螺旋形状となるため、作業等の邪魔にならない。さらに、被服、鞄等との連結により、落下・盗難等を防止できる。
(Coil part)
The coil portion 22 is expandable and contractible, and does not extend when the connecting chain 21 is used, that is, when talking on a mobile phone or using a tool, without unlocking the connecting chain 21. Make it usable. Further, when the mobile phone, the tool, or the like is not used, the coil portion 22 is compact and has a spiral shape that is wound tightly, so that it does not interfere with the work or the like. Furthermore, by connecting with clothes, bags, etc., it is possible to prevent falling, theft, etc.

コイル部22は、ワイヤ24を合成樹脂が被覆しながら合成樹脂層27を形成しつつ、螺旋形状に成形することで形成される。また、コイル部22は、図3で示すように、原状状態で密に巻回されている、すなわち、コイル部22の隣接する部位同士が当接している。このコイル部22は、コイルスプリングとして設けられ、つまり原状状態(力が作用していない状態)において収縮状態であり、張力を付与すると螺旋の軸方向に伸長し、この伸長状態から張力を除去すると復元力によって原状復帰(収縮)するよう設けられている。また、上記延出部分28,29は、作成時にはコイル部22と同時に螺旋形状に成形された後に、軸方向に延伸されることで軸方向に沿って伸ばされた形状を有している。 The coil portion 22 is formed by forming the synthetic resin layer 27 while covering the wire 24 with the synthetic resin and forming the coil portion 22 into a spiral shape. Further, as shown in FIG. 3, the coil portion 22 is tightly wound in the original state, that is, the adjacent portions of the coil portion 22 are in contact with each other. The coil portion 22 is provided as a coil spring, that is, it is in a contracted state in the original state (a state in which no force is applied), and when tension is applied, it expands in the axial direction of the spiral, and when tension is removed from this extended state. It is provided so that it returns to its original state (contracts) by the restoring force. Further, the extending portions 28 and 29 have a shape that is formed into a spiral shape at the same time as the coil portion 22 at the time of production and then stretched in the axial direction to be extended along the axial direction.

またコイル部22は、軸方向のみならず径方向(長手方向に直交する平面方向)にも拡縮可能に設けられている。つまり、コイル部22をコイル部22の内径よりも大きい部材に巻き付けると拡径し、大きい部材から離脱すると弾性復元力によって原状復帰(縮径)する。 Further, the coil portion 22 is provided so as to be expandable and contractible not only in the axial direction but also in the radial direction (the plane direction orthogonal to the longitudinal direction). That is, when the coil portion 22 is wound around a member larger than the inner diameter of the coil portion 22, the diameter is expanded, and when the coil portion 22 is separated from the large member, the original state is restored (reduced diameter) by the elastic restoration force.

本実施形態では、図7に示すように、コイル部22の断面形状は矩形で、4角の角部22aを有する。このように、断面形状が角部22aを有する、すなわちコイル部22の外縁が角部22aを有することで、密に巻回する螺旋形状に復元する力が増強される。具体的には、図4に示すように、コイル部22に張力が加わると、伸長するのと同時に、コイル部22の断面に捻りが加わり、断面形状が変形する。張力が取り除かれると、コイルスプリングとして螺旋形状に成形されたワイヤ4及び合成樹脂層7の螺旋形状への復元力に加え、コイル部22の変形した断面形状が原状状態の形状に戻ろうとする復元力、すなわち歪んだ角部22aが原状状態の角部22aの形に戻ろうとする力が発揮されるため、密に巻回する螺旋形状への復元力が強く働く。従って、コイル部22が伸縮を繰り返した場合、或いは大きな張力を与えられ伸びきった状態とされても、コイル部22は密に巻回する螺旋形状に復元することができる。さらに、歪んだ角部22aが原状状態の角部22aの形に戻ろうとする力が強力であるため、連結用チェーン部材23がコイル部22で絡まった場合でも、コイル部22が完全に伸びきるまで伸張させて張力を取り除くことで、コイル部22は正常な螺旋形状に復元することができる。 In the present embodiment, as shown in FIG. 7, the coil portion 22 has a rectangular cross-sectional shape and has four corner portions 22a. As described above, when the cross-sectional shape has the corner portion 22a, that is, the outer edge of the coil portion 22 has the corner portion 22a, the force for restoring the coil portion 22 to a tightly wound spiral shape is enhanced. Specifically, as shown in FIG. 4, when tension is applied to the coil portion 22, at the same time as the coil portion 22 is stretched, a twist is applied to the cross section of the coil portion 22, and the cross-sectional shape is deformed. When the tension is removed, in addition to the restoring force of the wire 4 and the synthetic resin layer 7 formed into a spiral shape as a coil spring to the spiral shape, the deformed cross-sectional shape of the coil portion 22 tries to return to the original shape. Since a force, that is, a force for the distorted corner portion 22a to return to the shape of the corner portion 22a in the original state is exerted, a restoring force for a tightly wound spiral shape acts strongly. Therefore, even if the coil portion 22 is repeatedly expanded and contracted, or even if a large tension is applied to the coil portion 22 and the coil portion 22 is in a fully extended state, the coil portion 22 can be restored to a spiral shape that winds tightly. Further, since the force of the distorted corner portion 22a to return to the original shape of the corner portion 22a is strong, the coil portion 22 is completely extended even when the connecting chain member 23 is entangled with the coil portion 22. The coil portion 22 can be restored to a normal spiral shape by stretching the coil portion 22 to remove the tension.

コイル部22の外縁の角部22aの数は、6角以下が好ましく、4角以下がより好ましい。具体的には、コイル部22の断面形状で図7に示すような矩形、図8Bに示すような三角形又は図8Aに示すような半円形とするのがよい。角部22aのなす角が直角以下であれば、変形した角部22aが元の形に戻ろうとする復元力が強く働く。一方、断面形状が六角形以上とすると、角部22aのなす角が大きく鈍角となり、変形した角部22aの復元力が弱くなり、塑性変形の影響を受けやすくなる。 The number of the outer edge corners 22a of the coil portion 22 is preferably hexagonal or less, and more preferably four or less. Specifically, the cross-sectional shape of the coil portion 22 may be a rectangle as shown in FIG. 7, a triangle as shown in FIG. 8B, or a semicircle as shown in FIG. 8A. If the angle formed by the corner portion 22a is equal to or less than a right angle, a restoring force that causes the deformed corner portion 22a to return to its original shape acts strongly. On the other hand, when the cross-sectional shape is hexagonal or larger, the angle formed by the corner portion 22a becomes large and obtuse, the restoring force of the deformed corner portion 22a becomes weak, and the corner portion 22a is easily affected by plastic deformation.

コイル部22の断面の外周長(外形寸法)は、特に限定されるものではないが、連結チェーン21として用いられ断面形状を矩形とする本実施形態では、例えば短辺が0.5mm以上5mm以下、長辺が1mm以上10mm以下とすることができる。コイル部22の断面の外周長が上記下限に満たないと、耐久性等が劣るおそれがある。一方、コイル部22の断面の外周長が上記上限を超えると、コイル部22の外形が大きくなり、平時に連結チェーン21の存在が邪魔になるおそれがある。 The outer peripheral length (external dimensions) of the cross section of the coil portion 22 is not particularly limited, but in the present embodiment used as the connecting chain 21 and having a rectangular cross section, for example, the short side is 0.5 mm or more and 5 mm or less. The long side can be 1 mm or more and 10 mm or less. If the outer peripheral length of the cross section of the coil portion 22 does not meet the above lower limit, the durability and the like may be inferior. On the other hand, if the outer peripheral length of the cross section of the coil portion 22 exceeds the above upper limit, the outer shape of the coil portion 22 becomes large, and the presence of the connecting chain 21 may be an obstacle in normal times.

コイル部22の内径は、特に限定されるものではなく、連結用チェーン部材23の全長、外周長、コイルの巻数等により最適値が選択されるが、例えばコイル部22の平均内径(原状状態)として、3mm以上20mm以下とすることができる。 The inner diameter of the coil portion 22 is not particularly limited, and an optimum value is selected depending on the total length, outer peripheral length, number of coil turns, etc. of the connecting chain member 23. For example, the average inner diameter of the coil portion 22 (original state). It can be 3 mm or more and 20 mm or less.

コイル部22の巻数は、特に限定されるものではないが、連結用チェーン部材23の全長、外周長、コイル部22の内径等により最適値が選択されるが、例えばコイル部22の巻数(原状状態)として10回以上80回以下とすることができる。 The number of turns of the coil portion 22 is not particularly limited, but an optimum value is selected depending on the total length of the connecting chain member 23, the outer peripheral length, the inner diameter of the coil portion 22, and the like. For example, the number of turns of the coil portion 22 (original state). The state) can be 10 times or more and 80 times or less.

<係合部>
係合部24,25は、既述のようにコイル部22の延出部分28,29の端部に配設される。
<engagement part>
The engaging portions 24 and 25 are arranged at the ends of the extending portions 28 and 29 of the coil portion 22 as described above.

係合部24,25は特に限定されるものではなく、図9に示すようなフック状のものの他、ナスカン、紐部材を環状にしたもの等、公知のものを用いることができる。 The engaging portions 24 and 25 are not particularly limited, and known ones such as hook-shaped ones as shown in FIG. 9, eggplant cans, and ring-shaped string members can be used.

<その他の実施形態>
今回開示された実施の形態は全ての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記実施形態の構成に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内での全ての変更が含まれることが意図される。
<Other Embodiments>
It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is not limited to the configuration of the above embodiment, but is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims. To.

上記実施形態のループ錠1においては、一対の係合部5,6として上述のようなロック部材5と剛性部材6を用いるものについて説明したが、本発明において一対の係合部5,6の具体的構成は上記実施形態に限定されるものではなく、一対の係合部同士が係合することで環状の施錠状態が得られるものであれば適宜設計変更可能である。例えば、ループ本体の両端に、上記実施形態のような環状部位を有する剛性部材(係合部)が配設され、一対の剛性部材の環状部位に挿通できるフックを有する鍵を用いて一対の係合部が係止されることで、施錠状態が得られるものも本発明の意図する範囲内である In the loop lock 1 of the above embodiment, the one in which the lock member 5 and the rigid member 6 as described above are used as the pair of engaging portions 5 and 6 has been described, but in the present invention, the pair of engaging portions 5 and 6 The specific configuration is not limited to the above embodiment, and the design can be appropriately changed as long as an annular locked state can be obtained by engaging the pair of engaging portions with each other. For example, rigid members (engagement portions) having an annular portion as in the above embodiment are arranged at both ends of the loop body, and a pair of engagements are performed using a key having a hook that can be inserted into the annular portion of the pair of rigid members. It is also within the scope of the present invention that a locked state can be obtained by locking the joint portion.

本発明のループ錠は二輪車用ループ錠として好適に使用され得る。二輪車は、一般的に移動性や利便性が高く、屋外において使用し駐輪するものであるが、盗難される可能性が高い。このため、本発明を二輪車用ループ錠として使用すると、二輪車の複雑な構造によらないで連結用チェーン部材3を巻き付けることにより自転車を効果的に巻着・固定することができる。さらに、本発明のループ錠は、二輪車用ループ錠としての用途に限らず、例えば自動車、鞄、レジャー用品、キャンプ用品等の用途に対しても広く好適に使用され得る。 The loop lock of the present invention can be suitably used as a loop lock for a two-wheeled vehicle. Motorcycles are generally highly mobile and convenient, and although they are used outdoors and parked, there is a high possibility that they will be stolen. Therefore, when the present invention is used as a loop lock for a two-wheeled vehicle, the bicycle can be effectively wound and fixed by winding the connecting chain member 3 without depending on the complicated structure of the two-wheeled vehicle. Further, the loop lock of the present invention is not limited to the use as a loop lock for a two-wheeled vehicle, and can be widely and suitably used for, for example, automobiles, bags, leisure goods, camping goods, and the like.

本発明の連結用チェーン部材は、上記実施形態の連結チェーン21において、携帯電話、工具等、小型軽量な物について説明したが、連結用チェーン部材を外形が大きく、芯材が強固なものを用いて、さらにコイル部の内径を大きく、伸縮率の高いものとすることで、重量物を連結するものも本発明の意図する範囲内である。例えば、犬などのペット用引綱、或いは車用牽引ロープ等である。 As the connecting chain member of the present invention, small and lightweight objects such as mobile phones and tools have been described in the connecting chain 21 of the above embodiment, but a connecting chain member having a large outer shape and a strong core material is used. Further, by making the inner diameter of the coil portion larger and having a high expansion / contraction rate, it is also within the scope of the present invention to connect heavy objects. For example, a tow rope for pets such as dogs, a tow rope for cars, and the like.

本発明の連結用チェーン部材は、全長の多くが1つのコイル部で形成されたもので例示したが、延出部分が長く、コイル部が短い構成とすることも可能である。また、延出部分を湾曲させる等形状に変化をつける、他の部材を接続することで長くする、コイル部を複数有する等も、本発明の範疇である。 Although the connecting chain member of the present invention is illustrated in that most of the total length is formed by one coil portion, it is also possible to have a configuration in which the extending portion is long and the coil portion is short. Further, it is also within the scope of the present invention to change the shape such as bending the extending portion, lengthen it by connecting other members, and have a plurality of coil portions.

本発明に係る連結用チェーン部材のコイル部の断面形状は、角部を有するものであれば上述したものに限られず、星型や涙型等、角を有する全ての形状が本発明の意図する範囲内である。 The cross-sectional shape of the coil portion of the connecting chain member according to the present invention is not limited to the one described above as long as it has a corner portion, and all shapes having corners such as a star shape and a teardrop shape are intended by the present invention. It is within the range.

以上のように、本発明のループ錠及び連結用チェーン部材は、伸縮を繰り返してもコイル部が弾性力を失わず、密に巻回するコイル形状を維持できる復元力を有するループ錠、及び連結用チェーン部材を提供することを目的とする。シンプルな構造からなり、平時にコンパクトな収納状態とすることができるため、二輪車、レジャー用品、手荷物品等の盗難防止、及び携帯電話、工具等の落下防止等に広く好適に使用され得る。 As described above, the loop lock and the connecting chain member of the present invention are the loop lock and the connecting chain member having a restoring force capable of maintaining the coil shape in which the coil portion is tightly wound without losing the elastic force even if the coil portion is repeatedly expanded and contracted. It is an object of the present invention to provide a chain member for use. Since it has a simple structure and can be stored in a compact state in normal times, it can be widely and suitably used for theft prevention of motorcycles, leisure goods, baggage, etc., and fall prevention of mobile phones, tools, etc.

1 ループ錠
2,22 コイル部
2a,22a 角部
3,23 連結用チェーン部材
4,24 ワイヤ
4a 鋼線
4b 芯線
4c ストランド
4d 間質材
5 係合部(ロック部材)
6 係合部(剛性部材)
7,27 合成樹脂層
8 延出部分(ロック部材接続側)
9 延出部分(剛性部材接続側)
10 環状部位
11 軸部位
12 被覆チューブ
13 ボディ部
13a 接続孔
14 フック
15 ゲート部
21 連結チェーン
24,25 係合部
28,29 延出部分
P 施錠対象物
1 Loop lock 2,22 Coil part 2a, 22a Square part 3,23 Connecting chain member 4,24 Wire 4a Steel wire 4b Core wire 4c Strand 4d Interstitium 5 Engagement part (lock member)
6 Engagement part (rigid member)
7,27 Synthetic resin layer 8 Extended part (lock member connection side)
9 Extended part (rigid member connection side)
10 Ring part 11 Shaft part 12 Covering tube 13 Body part 13a Connection hole 14 Hook 15 Gate part 21 Connecting chain 24,25 Engaging part 28,29 Extension part P Locking object

Claims (5)

長手方向に伸縮可能なコイル部を有する長尺状の連結用チェーン部材と、この連結用チェーン部材の両端に配設される一対の係合部とを備え、一対の係合部同士を係合させることで環状の施錠状態となる二輪車用のループ錠であって、
上記コイル部が、複数の鋼線を撚り合わせて形成され、芯材となるワイヤと、このワイヤを被覆する合成樹脂層とを有し、
上記コイル部の上記合成樹脂層の外縁が角部を有する二輪車用のループ錠。
A long connecting chain member having a coil portion that can be expanded and contracted in the longitudinal direction and a pair of engaging portions arranged at both ends of the connecting chain member are provided, and the pair of engaging portions are engaged with each other. It is a loop lock for motorcycles that becomes a ring-shaped locked state by letting it lock.
The coil portion is formed by twisting a plurality of steel wires, and has a wire serving as a core material and a synthetic resin layer covering the wire.
A loop lock for motorcycles in which the outer edge of the synthetic resin layer of the coil portion has a corner portion.
長手方向に伸縮可能なコイル部を有し、被係止物同士を連結する長尺状の連結用チェーン部材であって、
上記コイル部が、複数の鋼線を撚り合わせて形成され、芯材となるワイヤと、このワイヤを被覆する合成樹脂層とを有し、
上記コイル部の上記合成樹脂層の外縁が角部を有する被係止物同士を連結する連結用チェーン部材。
Have a stretchable coil portion in the longitudinal direction, a elongate connecting chain member connecting the locked object together,
The coil portion is formed by twisting a plurality of steel wires, and has a wire serving as a core material and a synthetic resin layer covering the wire.
A connecting chain member for connecting objects to be locked having corners on the outer edge of the synthetic resin layer of the coil portion.
上記コイル部の断面が三角形、矩形又は半円形である請求項2に記載の連結用チェーン部材。 The connecting chain member according to claim 2, wherein the cross section of the coil portion is triangular, rectangular or semicircular. 上記コイル部が芯材として複数のワイヤを備え、上記複数のワイヤが上記合成樹脂層で平行に配置される請求項2又は請求項3に記載の連結用チェーン部材。 The connecting chain member according to claim 2 or 3, wherein the coil portion includes a plurality of wires as a core material, and the plurality of wires are arranged in parallel by the synthetic resin layer. 上記ワイヤがステンレス製の細線を集合して撚り合わせたものである請求項2、請求項3又は請求項4に記載の連結用チェーン部材。 The connecting chain member according to claim 2, claim 3 or claim 4, wherein the wire is made by assembling and twisting thin stainless steel wires.
JP2016213809A 2016-10-31 2016-10-31 Loop lock and chain for connection Active JP6815625B2 (en)

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