JP2014122546A - Connector for cord - Google Patents

Connector for cord Download PDF

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JP2014122546A
JP2014122546A JP2014026384A JP2014026384A JP2014122546A JP 2014122546 A JP2014122546 A JP 2014122546A JP 2014026384 A JP2014026384 A JP 2014026384A JP 2014026384 A JP2014026384 A JP 2014026384A JP 2014122546 A JP2014122546 A JP 2014122546A
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connector
connecting member
cord
connector piece
connection member
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JP5752819B2 (en
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Masaya Yamaguchi
将哉 山口
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Tachikawa Blind Manufacturing Co Ltd
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Tachikawa Blind Manufacturing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a connector for cord which uses components in common and makes an assembling operation efficient.SOLUTION: There is provided a connector which connects both ends of a cord to each other to make it endless. The connector includes: a pair of connector pieces 5a, 5b engageable to both ends of the cord 2, and a cylindrical connection member 6 for connecting the connector pieces 5a, 5b to each other. The connector pieces 5a, 5b and the connection member 6 include holding means for engaging the connector pieces 5a, 5b with the connection member 6 by inserting the connector pieces 5a, 5b into both opening parts 14a of the connection member 6 in an opposing manner and rotating them in a direction orthogonal to an axial direction of the connection member 6. In the state where the pair of connector pieces 5a, 5b are connected to the connection member 6, an outer shape dimension of the connection member 6 in the direction orthogonal to the axial direction of the connection member 6 is smaller than outer shape dimensions of the connector pieces 5a, 5b in the direction orthogonal to the axial direction of the connection member 6.

Description

この発明は、ボールチェーン等のコードのコネクタに関するものである。   The present invention relates to a connector for a cord such as a ball chain.

横型ブラインドの一種類として、ヘッドボックスの一端に回動可能に支持されたプーリーに無端状のボールチェーンを操作コードとして掛装し、そのボールチェーンを操作してプーリーを回転させることにより、スラットを昇降操作及び角度調節可能としたものがある。   As one type of horizontal blind, an endless ball chain is hung as an operation cord on a pulley that is rotatably supported at one end of a head box, and the pulley is rotated by operating the ball chain. There is one that can be moved up and down and the angle can be adjusted.

ボールチェーンは、例えば合成樹脂で紐状に形成されたコードに対し、同じく合成樹脂のボールを等間隔に成形して固定したものである。そして、プーリーの周面に形成された凹部に各ボールを順次係合させてプーリーを回転駆動可能となっている。   The ball chain is formed by, for example, molding synthetic resin balls at equal intervals on a cord formed of a synthetic resin in a string shape. The balls can be sequentially engaged with recesses formed on the peripheral surface of the pulley so that the pulley can be driven to rotate.

このようなボールチェーンは、多数のボールを成形して取着したコードの両端をコネクタで連結して無端状とする構成が一般的である。
上記のように無端状のボールチェーンがプーリーから垂下されていると、そのボールチェーンの無端縁が室内を移動する居住者やその他の移動物体に引っ掛かることがある。
Such a ball chain is generally configured to be endless by connecting both ends of a cord formed by attaching a large number of balls with a connector.
When the endless ball chain is suspended from the pulley as described above, the endless edge of the ball chain may be caught by a resident moving in the room or other moving objects.

そこで、無端状のボールチェーンを構成するコネクタには、通常の操作時に作用する引張り力を超えるような過大な引張り力が作用するときには、その引張り力により切断されて居住者の安全を確保し、かつボールチェーンが掛装されるプーリー等の損傷を未然に防止するフェイルセーフ機能を備えることが必要である。   Therefore, when an excessive tensile force exceeding the tensile force acting during normal operation is applied to the connector constituting the endless ball chain, the connector is cut by the tensile force to ensure the safety of the occupant. In addition, it is necessary to provide a fail-safe function for preventing damage to a pulley or the like on which the ball chain is mounted.

特許文献1には、フェイルセーフ機能を備えたボールチェーンのコネクタが開示されている。   Patent Document 1 discloses a ball chain connector having a fail-safe function.

特開平9−189180号JP-A-9-189180

特許文献1に記載されたコネクタでは、互いに嵌合する殻包被と殻頭部とが別形状であるため、コネクタの製作時にはボールチェーン(玉連鎖)の一端に殻包被を取着し、他端に殻頭部を取着する必要がある。   In the connector described in Patent Document 1, since the shell cover and the shell head that are fitted to each other have different shapes, when the connector is manufactured, the shell cover is attached to one end of a ball chain (ball chain), It is necessary to attach the shell head to the other end.

従って、ボールチェーンとコネクタの組立て作業が煩雑となり、作業効率が低下するという問題点がある。
この発明の目的は、部品の共通化を図り、組立て作業の効率化を図り得るコードのコネクタを提供することにある。
Therefore, the assembly work of the ball chain and the connector becomes complicated, and there is a problem that the work efficiency is lowered.
SUMMARY OF THE INVENTION An object of the present invention is to provide a cord connector that can share parts and improve the efficiency of assembly work.

請求項1では、コードの両端部を連結して無端状とするためのコネクタであって、前記コードの両端部を係合可能とした一対のコネクタピースと、前記コネクタピースを連結する筒状の連結部材とを備え、前記コネクタピースと前記連結部材には、該コネクタピースを連結部材の両開口部に対向するように挿入して、該連結部材の軸方向と直交する方向に回動させることにより該コネクタピースを連結部材に係合させる保持手段を備え、前記連結部材に前記一対のコネクタピースが連結された状態では、前記連結部材の軸方向と直交する方向における該連結部材の外形寸法が、前記連結部材の軸方向と直交する方向における前記コネクタピースの外形寸法より小さい。   In Claim 1, it is a connector for connecting the both ends of a cord, and making it endless, Comprising: A pair of connector piece which can engage the both ends of the said cord, and the cylindrical shape which connects the said connector piece A connecting member, wherein the connector piece is inserted into the connector piece and the connecting member so as to oppose both openings of the connecting member, and is rotated in a direction perpendicular to the axial direction of the connecting member. And holding means for engaging the connector piece with the connecting member, and in the state where the pair of connector pieces are connected to the connecting member, the outer dimension of the connecting member in the direction orthogonal to the axial direction of the connecting member is The outer dimensions of the connector piece in the direction orthogonal to the axial direction of the connecting member are smaller.

請求項2では、前記コネクタピースと前記連結部材には、該コネクタピースの回動位置を位置決めするための位置決め手段を設け、前記位置決め手段の最大径は、前記連結部材の軸方向と直交する方向における前記コネクタピースの外形寸法より小さい。   In Claim 2, the said connector piece and the said connection member are provided with the positioning means for positioning the rotation position of this connector piece, The maximum diameter of the said positioning means is the direction orthogonal to the axial direction of the said connection member Smaller than the outer dimension of the connector piece.

請求項3では、前記コネクタピースの外形寸法を、プーリーとプーリーケースの間隔より大きくした。
請求項4では、前記コードは日射遮蔽装置の操作コードであり、前記保持手段は、前記コードの通常操作時に該コードに作用する引張り力を超える引張り力が作用したとき、該保持手段の弾性により分離可能とした。
According to a third aspect of the present invention, the outer dimension of the connector piece is larger than the distance between the pulley and the pulley case.
According to a fourth aspect of the present invention, the cord is an operation cord for a solar shading device, and the holding means is caused by elasticity of the holding means when a tensile force exceeding a tensile force acting on the cord is applied during normal operation of the cord. Separable.

本発明によれば、部品の共通化を図り、組立て作業の効率化を図り得るコードのコネクタを提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the connector of the code | cord | chord which can aim at commonization of components and can aim at the efficiency of assembly work can be provided.

一実施形態のボールチェーンを示す正面図である。It is a front view showing a ball chain of one embodiment. コネクタを示す斜視図である。It is a perspective view which shows a connector. コネクタを示す分解斜視図である。It is a disassembled perspective view which shows a connector. コネクタピースを示す斜視図である。It is a perspective view which shows a connector piece. コネクタピースを示す側面図である。It is a side view which shows a connector piece. コネクタピースを示す側面図である。It is a side view which shows a connector piece. コネクタピースの回動規制部を示す断面図である。It is sectional drawing which shows the rotation control part of a connector piece. 連結部材を示す側面図である。It is a side view which shows a connection member. 連結部材を示す側面図である。It is a side view which shows a connection member. 図8におけるA−A線断面図である。It is the sectional view on the AA line in FIG. 図8におけるB−B線断面図である。It is the BB sectional view taken on the line in FIG. 図10におけるC−C線断面図である。It is CC sectional view taken on the line in FIG. 嵌合突部と連結部材の嵌合状態を示す断面図である。It is sectional drawing which shows the fitting state of a fitting protrusion and a connection member.

以下、この発明を具体化した一実施形態を図面に従って説明する。図1に示すボールチェーン1はポリエステルのコード2上に等間隔に合成樹脂のボール3が成形されている。各ボール3はコード2の表面上に成形機で長球状の充実体を成形したものであり、各ボール3がコード2に対し移動不能に固着されている。   Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. A ball chain 1 shown in FIG. 1 has synthetic resin balls 3 formed on a polyester cord 2 at equal intervals. Each ball 3 is formed by forming a long spherical solid body on the surface of the cord 2 with a molding machine, and each ball 3 is fixed to the cord 2 so as not to move.

前記コード2の両端部は、コネクタ4で連結されて無端状のボールチェーン1が構成される。図2及び図3に示すように、前記コネクタ4は同一構成の2つのコネクタピース5a,5bと、筒状の連結部材6とでコード2の両端に成形されたボール3aを連結するようになっている。   Both ends of the cord 2 are connected by a connector 4 to form an endless ball chain 1. As shown in FIGS. 2 and 3, the connector 4 is configured to connect the balls 3 a formed at both ends of the cord 2 with two connector pieces 5 a and 5 b having the same configuration and a cylindrical connecting member 6. ing.

このコネクタ4は、コード2を連結して無端状のボールチェーン1を構成するとともに、ボールチェーン1がプーリーに掛装されている状態ではそのプーリー及びプーリーケースに当接して、ロールスクリーン等の引き上げ操作の上限位置を設定するストッパとして作用する。そして、コネクタピース5a,5bは、プーリーとプーリーケースの間を通過できない外形寸法で形成されている。   The connector 4 connects the cord 2 to form an endless ball chain 1 and, when the ball chain 1 is hooked on a pulley, abuts against the pulley and the pulley case to lift a roll screen or the like. Acts as a stopper to set the upper limit position of operation. And connector piece 5a, 5b is formed in the external dimension which cannot pass between a pulley and pulley cases.

前記コネクタピース5a,5bは同一構成であるので、コネクタピース5aについてその具体的構成を図4〜図7に従って説明する。
前記コネクタピース5aは、合成樹脂でほぼ直方体状に形成され、その上面には前記ボール3aを挿入可能とするように長円状に開口された係止孔7が設けられている。前記コネクタピース5aの基端面中央には、図5に示すように、前記係止孔7に連なる挿通孔8が開口され、その挿通孔8は案内溝9を介してコネクタピース5aの上面に開口されている。
Since the connector pieces 5a and 5b have the same configuration, the specific configuration of the connector piece 5a will be described with reference to FIGS.
The connector piece 5a is formed of a synthetic resin in a substantially rectangular parallelepiped shape, and a locking hole 7 opened in an oval shape is provided on the upper surface thereof so that the ball 3a can be inserted. In the center of the base end face of the connector piece 5a, as shown in FIG. 5, an insertion hole 8 connected to the locking hole 7 is opened, and the insertion hole 8 is opened to the upper surface of the connector piece 5a through a guide groove 9. Has been.

そして、コード2の端部に形成されたボール3aを係止孔7内に挿入し、そのボール3aに連なるコード2aを案内溝9から挿通孔8内に挿入すると、ボール3aが係止孔7内に図2に示す矢印方向には抜き出し不能に保持される。   Then, when the ball 3 a formed at the end of the cord 2 is inserted into the locking hole 7 and the cord 2 a connected to the ball 3 a is inserted into the insertion hole 8 from the guide groove 9, the ball 3 a is locked into the locking hole 7. In the direction shown by the arrow in FIG.

前記コネクタピース5aの先端面には丸軸状の嵌合突部10が充実体として突出形成されている。前記嵌合突部10の先端部の外周面上には、図4及び図6に示すように、丸軸の中心に対し線対称状に膨径部11が形成され、その膨径部11の中間には断面半円状の凹条12がそれぞれ形成されている。また、前記膨径部11の先端側及び基端側には面取り18が形成されている。   A round shaft-like fitting projection 10 is formed as a solid body on the distal end surface of the connector piece 5a. As shown in FIGS. 4 and 6, an enlarged diameter portion 11 is formed in line symmetry with respect to the center of the round shaft on the outer peripheral surface of the distal end portion of the fitting protrusion 10. A recess 12 having a semicircular cross section is formed in the middle. Further, chamfers 18 are formed on the distal end side and the proximal end side of the expanded diameter portion 11.

前記嵌合突部10の基端部には、図4及び図7に示すように、丸軸の径方向に突出する回動規制部13が中心に対し線対称状に形成されている。また、各回動規制部13は、前記丸軸の中心に対し前記凹条12から周方向に45度隔てた位置に形成される。   As shown in FIGS. 4 and 7, a rotation restricting portion 13 that protrudes in the radial direction of the round shaft is formed at the base end portion of the fitting protrusion 10 in a line-symmetric manner with respect to the center. Each rotation restricting portion 13 is formed at a position 45 degrees away from the recess 12 in the circumferential direction with respect to the center of the round shaft.

前記連結部材6は、前記コネクタピース5aと同一の合成樹脂で円筒状に成形され、図8及び図9に示すように、両側の開口部14a,14bは前記嵌合突部10の膨径部11を含む先端部を挿入可能とした俵形に形成されている。また、開口部14a,14bは、その俵形の方向が円筒の中心に対し互いに90度回転した形状となっている。   The connecting member 6 is formed into a cylindrical shape with the same synthetic resin as the connector piece 5a, and as shown in FIGS. 8 and 9, the openings 14a and 14b on both sides are enlarged diameter portions of the fitting projection 10. 11 is formed in a bowl shape in which a tip including 11 can be inserted. Further, the openings 14a and 14b have shapes in which the directions of the bowl shapes are rotated 90 degrees with respect to the center of the cylinder.

前記連結部材6の内部には、前記嵌合突部10の先端部を回動可能とする径を備えた円形孔15が形成されている。そして、開口部14aの俵形の短軸方向の開口縁には、前記膨径部11の円形孔15からの抜けを妨げる係止部16a,16bがそれぞれ形成され、開口部14bの俵形の短軸方向の開口縁には、前記膨径部11の円形孔15からの抜けを妨げる係止部16c,16dがそれぞれ形成されている。   A circular hole 15 having a diameter that allows the distal end of the fitting protrusion 10 to turn is formed inside the connecting member 6. And the latching | locking part 16a, 16b which prevents the removal from the circular hole 15 of the said enlarged diameter part 11 is formed in the opening edge of the short axis direction of the saddle shape of the opening part 14a, respectively, Locking portions 16c and 16d that prevent the expanded diameter portion 11 from coming out of the circular hole 15 are formed at the opening edge in the short axis direction, respectively.

また、前記係止部16a,16cの内側において、前記円形孔15の内周面には前記凹条12に係合する突条17がそれぞれ形成されている。
前記コネクタピース5aと連結部材6とを連結するには、嵌合突部10を連結部材6の一方の開口部14aに挿入し、コネクタピース5aを連結部材6に対し時計方向に90度回動する。すると、嵌合突部10の凹条12が円形孔15内の突条17に係合し、回動規制部13が開口部14aの俵形の角部から隣の角部まで移動して、図13に示すように位置決めされる。
Further, on the inner side of the locking portions 16a and 16c, protrusions 17 that engage with the recess 12 are formed on the inner peripheral surface of the circular hole 15, respectively.
To connect the connector piece 5a and the connecting member 6, the fitting protrusion 10 is inserted into one opening 14a of the connecting member 6, and the connector piece 5a is rotated 90 degrees clockwise with respect to the connecting member 6. To do. Then, the recess 12 of the fitting protrusion 10 engages with the protrusion 17 in the circular hole 15, and the rotation restricting portion 13 moves from the bowl-shaped corner of the opening 14a to the adjacent corner, Positioning is performed as shown in FIG.

また、連結部材6の他方の開口部14bにも同様にコネクタピース5bの嵌合突部10を挿入して90度回動させて位置決めする。すると、図2に示すように、連結部材6を介してコネクタピース5a,5bが連結され、無端状のボールチェーン1が形成される。   Similarly, the fitting protrusion 10 of the connector piece 5b is inserted into the other opening 14b of the connecting member 6 and rotated 90 degrees for positioning. Then, as shown in FIG. 2, the connector pieces 5a and 5b are connected via the connecting member 6, and the endless ball chain 1 is formed.

この状態では、各コネクタピース5a,5bの嵌合突部10の膨径部11が連結部材6の係止部16a〜16dに係合して、連結部材6の円形孔15内に保持される。
この保持力は、通常のスラット昇降操作及びスラット角度調節操作時にボールチェーン1に作用する通常の引張り力では、嵌合突部10が連結部材6から外れることがないように設定されている。そして、ボールチェーン1に通常の引張り力を超える大きな引張り力が作用したときに限り、連結部材6の合成樹脂の弾性により、嵌合突部10の膨径部11により連結部材6の開口部14a,14bが押し広げられて、嵌合突部10が連結部材6から外れるようになっている。
In this state, the enlarged diameter portion 11 of the fitting protrusion 10 of each connector piece 5a, 5b engages with the locking portions 16a to 16d of the connecting member 6 and is held in the circular hole 15 of the connecting member 6. .
The holding force is set so that the fitting protrusion 10 does not come off the connecting member 6 with a normal pulling force acting on the ball chain 1 during a normal slat raising / lowering operation and a slat angle adjusting operation. Only when a large tensile force exceeding the normal tensile force is applied to the ball chain 1, due to the elasticity of the synthetic resin of the connecting member 6, the expanded portion 11 of the fitting protrusion 10 causes the opening 14 a of the connecting member 6. , 14b are expanded so that the fitting protrusion 10 is detached from the connecting member 6.

図10〜図12に示すように、前記係止部16a〜16dと前記円形孔15の境界部には面取り19が設けられ、前記嵌合突部10が円形孔15から引き抜かれるとき、前記面取り18,19の作用により、前記係止部16a〜16dの損傷を防止するようになっている。   As shown in FIGS. 10 to 12, a chamfer 19 is provided at the boundary between the locking portions 16 a to 16 d and the circular hole 15, and when the fitting protrusion 10 is pulled out from the circular hole 15, the chamfering is performed. 18 and 19 prevent the locking portions 16a to 16d from being damaged.

上記のように構成されたボールチェーン1では、次に示す作用効果を得ることができる。
(1)ボールチェーン1に通常の引張り力を超える大きな引張り力が作用したとき、コネクタ4のコネクタピース5a,5bのいずれかと連結部材6の嵌合が外れる。従って、ボールチェーン1の無端縁が室内を移動する居住者やその他の移動物体に引っ掛かったとき、ボールチェーン1をコネクタ4で切断させて居住者の安全を確保し、かつボールチェーン1が掛装されるプーリー等の損傷を未然に防止することができる。
(2)コネクタ4が切断された後は、コネクタピース5a,5bと連結部材6を再度嵌合すれば、無端状のボールチェーン1として容易に再生することができる。
(3)充実体の嵌合突部10を連結部材6の開口部14a,14bに挿入して90度回動させることにより、嵌合突部10を連結部材6に嵌合する構成としたので、嵌合突部10を連結部材6に嵌合するための操作力を軽微としながら、嵌合突部10を連結部材6に保持する保持力を十分に確保することができる。
(4)連結部材6で連結される一対のコネクタピース5a,5bは、その嵌合突部10の中心線が互いに直交する角度で保持されている。従って、各嵌合突部10に引張り力が作用するとき、各嵌合突部10の膨径部11が連結部材6の開口部14a,14bを互いに90度ずれた方向、すなわち連結部材6の中心から四方に向かって押し広げるように動作するため、保持力を確保することが容易である。
(5)一対のコネクタピース5a,5bを円筒状の連結部材6で連結する構成であり、コネクタピース5a,5b及び連結部材6を合成樹脂で容易に成形することができるので、コネクタ4を容易に形成することができる。
(6)嵌合突部10を円筒状の連結部材6に嵌合するための操作力が軽微であるので、工具を使用することなく、嵌合突部10を連結部材6に再嵌合することができる。従って、コネクタ4が外れても、居住者が容易に復帰させることができる。
(7)コネクタピース5a,5bを同一形状の共通部品として部品点数を削減することができる。
(8)面取り18,19により、前記嵌合突部10が円形孔15から引き抜かれるとき、前記係止部16a〜16dの損傷を防止することができる。
(9)コネクタピース5a,5bがプーリーとプーリーケースとの間を通過できないので、コネクタ4が分断されても、ボールチェーン1がプーリーから脱落することを防止することができる。
In the ball chain 1 configured as described above, the following operational effects can be obtained.
(1) When a large pulling force exceeding the normal pulling force is applied to the ball chain 1, the fitting of one of the connector pieces 5a and 5b of the connector 4 and the connecting member 6 is released. Therefore, when the endless edge of the ball chain 1 is caught by a resident or other moving object moving in the room, the ball chain 1 is cut by the connector 4 to ensure the safety of the resident, and the ball chain 1 is mounted. It is possible to prevent damage to the pulley and the like.
(2) After the connector 4 is cut, if the connector pieces 5a and 5b and the connecting member 6 are fitted again, the endless ball chain 1 can be easily regenerated.
(3) Since the fitting protrusion 10 of the solid body is inserted into the openings 14 a and 14 b of the connecting member 6 and rotated 90 degrees, the fitting protrusion 10 is fitted to the connecting member 6. The holding force for holding the fitting protrusion 10 on the connecting member 6 can be sufficiently ensured while making the operating force for fitting the fitting protrusion 10 to the connecting member 6 light.
(4) The pair of connector pieces 5a and 5b connected by the connecting member 6 are held at an angle at which the center lines of the fitting protrusions 10 are orthogonal to each other. Therefore, when a tensile force is applied to each fitting projection 10, the expanded diameter portion 11 of each fitting projection 10 is displaced by 90 degrees from the openings 14 a and 14 b of the connecting member 6, that is, the connecting member 6. Since it operates to spread from the center toward the four directions, it is easy to ensure the holding force.
(5) Since the pair of connector pieces 5a and 5b are connected by the cylindrical connecting member 6 and the connector pieces 5a and 5b and the connecting member 6 can be easily formed of synthetic resin, the connector 4 can be easily formed. Can be formed.
(6) Since the operating force for fitting the fitting protrusion 10 to the cylindrical connecting member 6 is slight, the fitting protrusion 10 is refitted to the connecting member 6 without using a tool. be able to. Therefore, even if the connector 4 is disconnected, the resident can easily return it.
(7) The number of parts can be reduced by using the connector pieces 5a and 5b as common parts having the same shape.
(8) When the fitting protrusion 10 is pulled out from the circular hole 15 by the chamfers 18 and 19, damage to the locking portions 16a to 16d can be prevented.
(9) Since the connector pieces 5a and 5b cannot pass between the pulley and the pulley case, the ball chain 1 can be prevented from falling off the pulley even if the connector 4 is divided.

上記実施形態は、以下の態様で実施してもよい。
・前記コネクタ4を使用して、ロールブラインド、プリーツカーテン、たくし上げカーテン等の日射遮蔽装置の無端状のボールチェーンを形成してもよい。
・前記コネクタ4を、ネームプレート等を首から吊下支持するボールチェーンを無端状に連結するコネクタとして使用してもよい。
・コネクタピース5a,5bと連結部材6を嵌合する際に、コネクタピース5a,5bを連結部材6に対し回動させる角度は、90度以外の角度としてもよい。
・ボールチェーン1は、端部にのみボール3aを備えた紐状のコードとしてもよい。
You may implement the said embodiment in the following aspects.
The connector 4 may be used to form an endless ball chain of a solar shading device such as a roll blind, a pleated curtain, and a scooping curtain.
-You may use the said connector 4 as a connector which connects the ball chain which suspends and supports a nameplate etc. from a neck endlessly.
The angle at which the connector pieces 5a and 5b are rotated with respect to the connecting member 6 when fitting the connector pieces 5a and 5b and the connecting member 6 may be an angle other than 90 degrees.
-Ball chain 1 is good also as a string-like cord provided with ball 3a only at the end.

1…ボールチェーン、2…コード、3…ボール、4…コネクタ、5a,5b…コネクタピース、6…連結部材、10…保持手段(嵌合突部)、11…保持手段(膨径部)、12…位置決め手段(凹条)、16a〜16d…保持手段(係止部)、17…位置決め手段(突条)。   DESCRIPTION OF SYMBOLS 1 ... Ball chain, 2 ... Cord, 3 ... Ball, 4 ... Connector, 5a, 5b ... Connector piece, 6 ... Connection member, 10 ... Holding means (fitting protrusion), 11 ... Holding means (expanded diameter part), 12 ... Positioning means (concave), 16a to 16d ... Holding means (locking portion), 17 ... Positioning means (projection).

Claims (4)

コードの両端部を連結して無端状とするためのコネクタであって、
前記コードの両端部を係合可能とした一対のコネクタピースと、
前記コネクタピースを連結する筒状の連結部材と
を備え、
前記コネクタピースと前記連結部材には、該コネクタピースを連結部材の両開口部に対向するように挿入して、該連結部材の軸方向と直交する方向に回動させることにより該コネクタピースを連結部材に係合させる保持手段を備え、
前記連結部材に前記一対のコネクタピースが連結された状態では、前記連結部材の軸方向と直交する方向における該連結部材の外形寸法が、前記連結部材の軸方向と直交する方向における前記コネクタピースの外形寸法より小さいことを特徴とするコードのコネクタ。
It is a connector for connecting both ends of the cord to make it endless,
A pair of connector pieces capable of engaging both ends of the cord;
A cylindrical connecting member for connecting the connector piece,
The connector piece and the connecting member are connected by inserting the connector piece so as to face both openings of the connecting member and rotating the connector piece in a direction perpendicular to the axial direction of the connecting member. Holding means for engaging the member;
In a state where the pair of connector pieces are connected to the connecting member, the outer dimension of the connecting member in the direction orthogonal to the axial direction of the connecting member is such that the external dimension of the connector piece in the direction orthogonal to the axial direction of the connecting member is Cord connector characterized by being smaller than the outer dimensions.
前記コネクタピースと前記連結部材には、該コネクタピースの回動位置を位置決めするための位置決め手段を設け、
前記位置決め手段の最大径は、前記連結部材の軸方向と直交する方向における前記コネクタピースの外形寸法より小さいことを特徴とする請求項1記載のボールチェーンのコネクタ。
The connector piece and the connecting member are provided with positioning means for positioning the rotational position of the connector piece,
2. The ball chain connector according to claim 1, wherein a maximum diameter of the positioning means is smaller than an outer dimension of the connector piece in a direction orthogonal to the axial direction of the connecting member.
前記コネクタピースの外形寸法を、プーリーとプーリーケースの間隔より大きくしたことを特徴とする請求項1又は2に記載のコードのコネクタ。   The cord connector according to claim 1 or 2, wherein an outer dimension of the connector piece is larger than a distance between the pulley and the pulley case. 前記コードは日射遮蔽装置の操作コードであり、
前記保持手段は、前記コードの通常操作時に該コードに作用する引張り力を超える引張り力が作用したとき、該保持手段の弾性により分離可能としたことを特徴とする請求項1乃至3のいずれか1項に記載のコードのコネクタ。
The code is an operation code of the solar shading device,
4. The holding means according to claim 1, wherein the holding means is separable by elasticity of the holding means when a tensile force exceeding a tensile force acting on the cord is applied during normal operation of the cord. The connector of the cord according to item 1.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101707902B1 (en) * 2015-08-20 2017-02-17 이신흥 Safety chains for roll blinds
JP6355287B1 (en) * 2017-08-10 2018-07-11 冨士文具製造株式会社 Elastic joint

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023716Y1 (en) * 1968-07-04 1975-07-17
JPH05141161A (en) * 1991-11-22 1993-06-08 Nichibei Co Ltd Blind operating device
JP2008002193A (en) * 2006-06-23 2008-01-10 Yokota:Kk Operating code safety mechanism of solar insolation shading device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023716Y1 (en) * 1968-07-04 1975-07-17
JPH05141161A (en) * 1991-11-22 1993-06-08 Nichibei Co Ltd Blind operating device
JP2008002193A (en) * 2006-06-23 2008-01-10 Yokota:Kk Operating code safety mechanism of solar insolation shading device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101707902B1 (en) * 2015-08-20 2017-02-17 이신흥 Safety chains for roll blinds
JP6355287B1 (en) * 2017-08-10 2018-07-11 冨士文具製造株式会社 Elastic joint

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