JP2016044689A - Fastener of restraining tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastener of a restraining tool capable of easily and appropriately forming a loop part wound around an item to be restrained without making any knot at a rope.SOLUTION: This invention comprises a casing body 1 having a receptacle opening 1a for accepting an intermediate part Ra of a rope R from an orientation crossing with a longitudinal direction and having a passing part 1b for the rope R at each of opposing sides 1d; a lid-like body 2 rotatably combined with the casing body 1; a lock means 3 for keeping in a releasable manner a state in which the lid-like body 2 is kept at a closed position; and an engaging means 4 allowing a motion of the rope R toward a narrowing direction of a loop part Rd in respect to the intermediate part Ra held in the casing body 1 by the lid-like body 2 placed at a closed position and at the same time engaged to prevent the rope R oriented to expand the loop part Rd from being moved.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a fastener that constitutes a restraint in combination with a rope.

  In a restraint using a rope, such as a restraint called a waist rope, it is wound around a restraint object, and a knot is made so that the winding is not loosened. Special consideration is required for forming the knot so that the winding does not loosen due to the movement of the restraint target, and the work of unraveling the knot is required when the restraint of the restraint target is released.

  The main problem to be solved by the present invention is that a loop portion that is fastened to an intermediate portion of a rope and winds around a restraint object can be easily and appropriately formed without knotting the rope. It is the point which provides the fastener for restraints.

In order to achieve the above object, according to the present invention, a restraint tool is fastened to a middle portion of a rope, and a loop portion that winds around the restraint object is formed on the rope. A fastener comprising:
One of the intermediate portions located between the loop portion and one end of the rope and the other of the intermediate portions located between the loop portion and the other end of the rope in the length direction. A casing-like body having a receiving opening for simultaneously receiving from the crossing direction, and having a passage portion of the rope on each of opposite sides,
A lid-like body that is combined with the casing-like body so as to be rotatable between a closed position and an open position that prevent the intermediate part from being removed from the receiving opening;
Lock means for releasably maintaining the lid-like body in the closed position;
The movement of the rope in a direction to squeeze the loop portion is allowed with respect to the intermediate portion held in the casing-like body by the lid-like body in the closed position, and the rope in a direction to widen the loop portion is allowed. And engaging means engaged so as to prevent the movement.

  In the state where the lid-like body is in the open position, the intermediate part can be accommodated in the casing-like body from the direction intersecting in the length direction by the receiving opening of the casing-like body and the two passing portions. Thereafter, the lid-like body is rotated to the closed position, whereby the accepted intermediate portion can be prevented from coming out from the receiving opening. Thereby, the loop part which winds around a restraint object is formed, without making a knot on a rope. Since the engaging means only allows movement of the rope in the direction to squeeze the loop portion, the length of the rope drawn from the fastener on the side opposite to the loop portion forming side from the state in which the loop portion is wound around the restraint target. By pulling the rope in an increasing direction, the loop portion can be wound around the restraint object without loosening, and the restraint state of the restraint object by the loop portion is stably maintained. The restraint to be restrained can be quickly released by releasing the lock by the locking means, rotating the lid-like body to the open position, and extracting the intermediate portion from the casing-like body.

  One of preferred embodiments of the present invention is that the maintenance of the lid-like body in the closed position by the locking means is released by inserting a key into a key hole formed in the casing-like body. Is done. In this case, since the lid-like body in the closed position cannot be rotated toward the open position unless a key is inserted into the keyhole, the fastener once fastened to the rope is not expected. Therefore, the restraint state of the restraint object by the loop portion is ensured without coming off the rope.

  Further, the engaging means continues to the groove wall of the groove forming body that allows the intermediate portion to be received from the groove opening in a direction crossing obliquely with respect to the length direction of the intermediate portion to be received, and the loop portion One of the preferred embodiments of the present invention is to provide a protrusion that increases the amount of biting into the rope when a tension toward the forming side is applied to the rope. In such a case, when the tension toward the loop portion forming side is applied to the rope by the protrusion, the intermediate portion between the groove walls of the groove forming body is guided to the groove bottom side, The more the tension is applied, the greater the amount of biting of the protrusion with respect to the intermediate portion, and the movement of the rope due to the tension can be prevented. On the contrary, when a tension is applied to the rope on the side opposite to the loop forming side, the intermediate part between the groove walls of the groove forming body is guided to the groove opening side, When a tension is applied, the amount of protrusion of the ridge with respect to the intermediate portion can be reduced to allow the rope to move due to the tension.

  The fastener according to the present invention is easily and appropriately formed without a knot on the rope, by being fastened to an intermediate portion of the rope and wound around the rope to be restrained.

FIG. 1 is a perspective view showing a use state of a restraint device according to an embodiment of the present invention. FIG. 2 is a perspective view showing a use state of the restraint. FIG. 3 is a plan view of the fastener constituting the restraint, showing a state where the lid-like body is in the closed position. FIG. 4 is a side view of the fastener viewed from the left side in FIG. FIG. 5 is a side view of the fastener viewed from the right side in FIG. FIG. 6 is a side view of the fastener viewed from below in FIG. FIG. 7 is a side view of the fastener viewed from the upper side in FIG. 8 is a cross-sectional view taken along line AA in FIG. 9 is a cross-sectional view taken along line BB in FIG. FIG. 10 is a plan view of the fastener, showing a state where the lid-like body is in the open position. FIG. 11 is a cross-sectional configuration diagram of the locking means at the CC line position in FIG. 9 and shows a state where the striker body and the receiving member are engaged. FIG. 12 is a cross-sectional configuration diagram of the locking means, showing a state in which the striker body and the receiving member are disengaged. FIG. 13 is a cutaway perspective view of the main part of the locking means. FIG. 14 is a cutaway perspective view of the main part of the locking means, showing a state where the striker body and the receiving member are engaged. FIG. 15 is a cutaway perspective view of the main part of the locking means, showing a state immediately after the engagement between the striker body and the receiving member is released.

  Hereinafter, typical embodiments of the present invention will be described with reference to FIGS. The fastener for the restraint device according to this embodiment is fastened to the intermediate portion Ra of the rope R, and the loop portion Rd that wraps around the restraint object O is wrapped around the rope R without forming a knot on the rope R. It is easily and appropriately formed. That is, such a fastener is combined with the rope R to constitute a restraint. As shown in FIG. 2, the loop portion Rd may be wound around the restraint object O by two or more turns.

  Such a fastener includes a casing-like body 1, a lid-like body 2, locking means 3, and engaging means 4.

  The casing-like body 1 includes one of the intermediate portions Ra (hereinafter referred to as one intermediate portion Ra ′) positioned between the loop portion Rd and one end Rb of the rope R, the loop portion Rd, and the rope. And a receiving opening 1a for simultaneously receiving the other of the intermediate portions Ra (hereinafter referred to as the other intermediate portion Ra ″) positioned between the other end Rc of R from the direction crossing in the length direction. Each of the opposing side portions 1d includes a passage portion 1b for the rope R.

  In the illustrated example, the casing-like body 1 includes a rectangular bottom portion 1c and four side portions 1d... 1d surrounding the bottom portion 1c, and the side opposite to the bottom portion 1c serves as the receiving opening 1a. 1d... 1d are formed in such a manner that the passing portions 1b are formed on the two side portions 1d and 1d at the opposite positions.

  The passage portion 1b is between a virtual first line segment L1 and a second line segment L2 (see FIG. 10) parallel to the length direction of the intermediate portion Ra, and is parallel to the inner surface of the bottom portion 1c. Between the 3rd line segment L3 (refer FIG. 6) and the said receiving opening 1a, it forms so that the said side part 1d may be cut off.

  It is sufficient that the casing-like body 1 is provided with the receiving opening 1a and the passage portion 1b, and the specific shape thereof is not limited to that shown in the drawing.

  The lid-like body 2 is attached to the casing-like body 1 so as to be rotatable between a closed position in which the accepted intermediate portion Ra is prevented from slipping out from the receiving opening 1a and an open position in which this slip-out is allowed. It is combined.

  In the illustrated example, the lid-like body 2 has a plate shape having substantially the same shape and size as the bottom portion 1 c of the casing-like body 1.

  In the illustrated example, the lid-like body 2 and the casing-like body 1 are combined so as to be rotatable with a rotation shaft 5 along the length direction of the intermediate portion Ra. Specifically, the rotation shaft 5 is positioned on the protruding end of the side portion 1d on the first line segment L1 side. In the illustrated example, the lid-like body 2 and the casing-like body 1 are combined by two hinges 6, 6. The two hinges 6 and 6 are respectively provided on both sides of a virtual fourth line segment L4 (see FIG. 10) that bisects the casing-like body 1 perpendicular to the first line segment L1 and the second line segment L2. It has been. The pivot shaft 5 is formed by the hinge shaft 6 a of the two hinges 6, 6. The two hinges 6 and 6 are fixed to the inner surface of the side portion 1d of the casing-like body 1 by fixing one of the two hinge components 6b and 6b rotatably combined by the hinge shaft 6a. The other of the hinge structures 6b and 6b is fixed to the inner surface of the lid-like body 2.

  In the illustrated example, one hinge shaft 6a of the two hinges 6 and 6 is passed through a winding portion 7a of a torsion coil spring 7. One of the lead portions 7b from the winding portion 7a is a casing-like body. The urging force toward the open position is applied to the lid-like body 2 in the closed position by the spring 7 which is brought into contact with the first side and the other of the drawer portions 7b is brought into contact with the lid-like body 2 side. It has become. In the illustrated example, the lid-like body 2 faces its inner surface to the bottom portion 1c of the casing-like body 1 in the closed position, and is rotated from the closed position to an angular position slightly larger than 180 degrees. It is designed to be in the open position.

  Further, in the illustrated example, the lock protruding from the inner surface of the lid-like body 2 is located on the side opposite to the rotational assembly side of the lid-like body 2 and located on the fourth line segment L4. A striker body 30 constituting the means 3 is formed. The striker body 30 is formed with an engagement hole 30 a of an engagement claw 312 d that constitutes a receiving member 31 described later that penetrates the striker body 30 in a direction along the rotation shaft 5.

  Further, in the illustrated example, a protruding portion 2a protruding from the inner surface along this side portion is formed on one side of two side portions parallel to the fourth line segment L4 in the lid-like body 2. . By means of the projecting portion 2a, the intermediate portion Ra can be described later by means of a lid-like body 2 that is in the closed position in the passage portion 1b that is located on the side E opposite to the formation side F of the loop portion Rd in the fastener. It is positioned closer to the bottom 1c side of the casing-like body 1 than the protruding end of the groove wall 4d constituting the coupling means 4 (FIG. 8).

  In addition, if this lid-like body 2 prevents the middle portion Ra of the rope R received in the casing-like body 1 through the receiving opening 1a at the closed position, the lid-like body 2 will be described in detail later. It suffices to prevent the engagement means 4 from coming out, and the specific shape is not limited to that shown in the figure.

  The locking means 3 keeps the state where the lid-like body 2 is in the closed position so as to be released. In the illustrated example, the locking means 3 is composed of the striker body 30 and a receiving member 31 provided on the casing-like body 1 side.

  The receiving member 31 is provided inside the casing-like body 1 at a position between the second line segment L2 and the inner surface of the side portion 1d of the casing-like body 1 on the second line segment L2 side. It has been. The receiving member 31 has (1) an upper portion 311a positioned slightly below the receiving opening 1a, a lower portion 311c fixed to the bottom portion 1c of the casing-like body 1, and a connecting portion 311d extending therebetween. A frame 311 that forms a receiving space 311e for the striker body 30 between the connecting portion 311d and the side portion 1d; and (2) a movable member 312 having an engagement claw 312d for the engagement hole 30a; 3) A posture maintaining member 313 of the movable member 312 is provided.

  An introduction hole 311 b of the receiving member 31 is formed in the upper part 311 a of the frame 311. The movable member 312 includes a first portion 312a positioned immediately below the introduction hole 311b, a second portion 312b positioned in the vicinity of a key hole 1e described later, and a third portion connecting the first portion 312a and the second portion 312b. Part 312c, and is supported in the frame 311 by the posture maintaining member 313. The posture maintaining member 313 is a leaf spring formed in an L shape. One side 313a sandwiching the bent portion of the leaf spring is fixed to the bottom 1c of the case, and the other side 313b is fixed to the first portion 312a of the movable member 312. By this posture maintaining member 313, the movable member 312 is supported between the upper part 311 a and the bottom part 1 c of the frame 311, usually with the third part 312 c parallel to the bottom part 1 c of the frame 311. (FIG. 11).

  The movable member 312 includes the engagement claw 312d in the first portion 312a. When the lid-like body 2 in the open position (FIG. 10) is rotated toward the closed position (FIGS. 3 to 9), the striker body 30 enters the introduction hole 311b immediately before reaching the closed position. At this time, the striker body 30 hits the engaging claw 312 d of the movable member 312, the posture control member 313 is elastically deformed, and the movable member 312 is inclined to allow the introduction of the striker body 30. When the lid-like body 2 reaches the closed position, the engagement hole 30a and the engagement claw 312d are positioned at the same level, and the posture control member 313 is allowed to return elastically, so that the movable member 312 is not tilted. The engagement claw 312d enters and engages with the engagement hole 30a. Thereby, the state which the lid-like body 2 exists in a closed position is maintained.

  The engaging means 4 allows the movement of the rope R in the direction to squeeze the loop portion Rd with respect to the intermediate portion Ra held in the casing-like body 1 by the lid-like body 2 in the closed position. At the same time, it is engaged so as to prevent the movement of the rope R in the direction of expanding the loop portion Rd.

  In this embodiment, the casing-like body 1 is provided with an engaging means 4 for the one intermediate portion Ra ′ and an engaging means 4 for the other intermediate portion Ra ″.

  In the state where the lid-like body 2 is in the open position, the intermediate portion Ra ′ and the other intermediate portion Ra ″ are crossed in the length direction by the receiving opening 1a of the casing-like body 1 and the two passage portions 1b and 1b. It can be stored in the casing-like body 1 from the direction in which it is to be moved, and thereafter, the lid-like body 2 is rotated to the closed position to prevent the accepted intermediate portion Ra from coming out of the receiving opening 1a. As a result, a loop portion Rd that wraps around the restraint object O is formed without knotting the rope R. The engaging means 4 only allows the movement of the rope R in the direction to squeeze the loop portion Rd. Therefore, the rope R is pulled in a direction to increase the length of the rope R drawn from the fastener on the side E opposite to the formation side F of the loop portion Rd from the state where the loop portion Rd is wound around the restraint object O. As a result, the loop portion Rd can be wound around the restraint object O without looseness, and the restraint state of the restraint object O by the loop portion Rd is stably maintained. The lid 2 can be released by rotating the lid-like body 2 to the open position and extracting the intermediate portion Ra from the casing-like body 1.

  In this embodiment, the engaging means 4 allows the intermediate portion Ra to be received from the groove opening 4b, and at the formation side F of the loop portion Rd and toward the groove bottom 4c side. In the groove wall 4d of the groove forming body 4a, the groove width of which is gradually narrowed, a protrusion 4e is formed that continues in a direction that crosses obliquely with respect to the length direction of the intermediate portion Ra to be received. The groove forming body 4a is substantially channel-shaped in cross section along the width direction at each position in the length direction.

  The groove forming body 4a serving as the engaging means 4 has an outer surface of the base 4f forming the groove bottom 4c fixed to the bottom 1c of the casing-like body 1, and the groove opening 4b is directed toward the receiving opening 1a. The casing-like body 1 is provided.

  The groove forming body 4a with respect to the one intermediate portion Ra ′ has one of the groove walls 4d substantially along the first line segment L1 and the other of the groove walls 4d on the center side of the casing-like body 1. It is provided in the casing-like body 1 so as to be positioned at the position. Further, the groove forming body 4a with respect to the other intermediate portion Ra ″ has one of the groove walls 4d substantially along the second line segment L2, and the other of the groove walls 4d is connected to the casing-like body 1. The casing-like body 1 is provided so as to be positioned on the center side.

  In the illustrated example, the groove forming body 4a includes protrusions 4e on two groove walls 4d and 4d, respectively. Each groove wall 4d is provided with four protrusions 4e. Each of the ridges 4e continues in a direction crossing obliquely with respect to the length direction of the intermediate portion Ra so that the formation side F of the loop portion Rd is inclined downward and the opposite side E is inclined upward. ing. Further, the distance between the protrusion 4e of one groove wall 4d and the protrusion 4e of the other groove wall 4d is smaller than the thickness of the rope R at each position from the groove bottom 4c to the groove opening 4b. Yes. Further, the distance between the groove opening 4b of the groove forming body 4a and the inner surface of the lid-like body 2 in the closed position is smaller than the thickness of the rope R.

  Thereby, in this embodiment, the movement of the rope R in the direction of narrowing the loop portion Rd is allowed, and the movement of the rope R in the direction of expanding the loop portion Rd is prevented. . That is, when the tension toward the forming side F of the loop portion Rd is applied to the rope R by the protrusion 4e, the intermediate portion Ra between the groove walls 4d of the groove forming body 4a is moved to the groove bottom 4c side. Since the groove width becomes narrower toward the formation side F of the loop portion Rd, the amount of biting of the protrusion 4e with respect to the intermediate portion Ra increases as the tension is applied. Thus, the movement of the rope R due to the tension can be prevented. On the contrary, when the tension toward the side E opposite to the formation side F of the loop portion Rd is applied to the rope R, the intermediate portion Ra between the groove walls 4d of the groove forming body 4a is set to the groove opening 4b. Since the groove width increases toward the side E opposite to the formation side F of the loop portion Rd, when the tension is applied, the protrusion 4e with respect to the intermediate portion Ra is provided. Therefore, the movement of the rope R by the tension can be allowed.

  In this embodiment, the lid 3 is maintained in the closed position by the lock means 3 by inserting the key K into the key hole 1e formed in the casing 1. The key K is released by a twisting operation.

  In the illustrated example, a key hole 1e penetrating the side part 1d is provided in the side part 1d on the second line segment L2 side of the casing body, and a key is inserted into the space in the frame 311 through the key hole 1e. K can be inserted. When the key K inserted in this way is twisted, a part of the key K hits the second portion 312b of the movable member 312 and the posture maintaining member 313 is elastically deformed, so that the movable member 312 is engaged. The joint 312d and the engagement hole 30a are inclined to release the engagement (FIGS. 11 to 12).

  Thus, in this embodiment, the lid-like body 2 in the closed position cannot be rotated toward the open position unless the key K is inserted into the keyhole 1e and the twisting operation is performed. The fastener once fastened to R does not unexpectedly come off the rope R, and the restraint state of the restraint object O by the loop portion Rd is ensured.

   Of course, the present invention is not limited to the embodiments described above, but includes all embodiments that can achieve the object of the present invention.

R rope Ra middle part Rd loop part 1 casing-like body 1a receiving opening 1b passage part 1d side part 2 lid-like body 4 engaging means

Claims (3)

A fastener that is fastened to an intermediate portion of the rope and forms a loop portion that winds around the restraint on the rope, and constitutes a restraint,
One of the intermediate portions located between the loop portion and one end of the rope and the other of the intermediate portions located between the loop portion and the other end of the rope in the length direction. A casing-like body having a receiving opening for simultaneously receiving from the crossing direction, and having a passage portion of the rope on each of opposite sides,
A lid-like body that is combined with the casing-like body so as to be rotatable between a closed position and an open position that prevent the intermediate part from being removed from the receiving opening;
Lock means for releasably maintaining the lid-like body in the closed position;
The movement of the rope in a direction to squeeze the loop portion is allowed with respect to the intermediate portion held in the casing-like body by the lid-like body in the closed position, and the rope in a direction to widen the loop portion is allowed. A restraint fastener comprising engagement means engaged to prevent movement.   2. The restraint fastener according to claim 1, wherein maintenance of the lid-like body in the closed position by the locking means is released by inserting a key into a key hole formed in the casing-like body. Ingredients. The engaging means continues to the groove wall of the groove forming body that allows the intermediate portion to be received from the groove opening in a direction obliquely intersecting with the length direction of the intermediate portion to be received, and the loop portion forming side The restraint fastener according to claim 1, further comprising a protrusion that increases an amount of biting into the rope when a tension toward the rope is applied to the rope.

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