JP7236138B2 - Strap fastening device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a string fastening device that enables simple and rapid operations such as tying and bundling, as an alternative to conventional difficult methods of tying strings and ropes.

At construction sites and work sites, tying, bundling, and connecting various things with strings or ropes is indispensable. Intricate workmanship of the string was made, such as making a loop and passing the tip of the string through. In addition, no tools other than string or rope were used, and it was a complicated knot involving only string or rope.

It should be noted that the uses of knots were, for example, to bind branches, bind straws, bind straws, and the like.

According to the conventional method of tying strings and ropes, it is a skillful way of tying that strengthens the bond when a pulling force is applied. There was a problem that the work took time and was not efficient even if mastered. In addition, since it is a delicate work, it is not possible to do it while wearing gloves, so bare hands were often forced even in the cold season. However, since this is cruel, there was a demand for a simple binding work that can be done even when wearing gloves.

In view of the actual situation as described above, the present invention does not require a particularly difficult technique to be mastered, and although it can be easily used to fasten to a member to be bound, it is difficult to solve the conventional problem. It is an object of the present invention to provide a string fastening device capable of securing a binding strength comparable to the method of tying a string.

In order to solve the above-mentioned problems, the present invention provides a short cylindrical outer frame constricted in an hourglass shape, and an outer frame fitted in the outer frame so as to be slightly movable back and forth with some slack as long as the integration is maintained. A kumidama consisting of a similarly constricted core with a large diameter at the rear end, and a long cord attached to the front end of the core so that it can be manually turned for fastening to the member to be bound. The core protrudes from the mouth of the outer frame at its rear end and has a flange that forms a V-groove with the end face of the outer frame. To provide a fastening device for a cord, characterized in that it is provided with a lacing hole in a direction, and is constructed so that the tip of the cord pulled out from the lacing hole can be wound around the V-groove and held. .

Since the fastening device for cords is constructed as described above, in order to use it, the cords protruding from the braided ball are hand-twisted (once or several times) to the member to be bound, and then turned over and returned to the end of the cord. While pulling out the V-groove through the string through hole of the braided ball, strongly pull out the tip of the string (arrow a). Then, the core is pulled forward (arrow c) at the same time that the member to be bound is tightened with the string, and the V-groove is closed. tighten.

This completes one final task. When the binding is later dismantled, the ends of the cords are rewound in the V-groove, and then the cords are pulled out through the through-hole.

As described above, according to the cord fastening device of the present invention, it can be easily used for binding work, dismantling work, etc., and is easy to use without requiring particularly difficult techniques to learn. In addition, since the string is not loosened by the tightening wound around the V-groove, it is possible to secure a binding strength comparable to that of tying a difficult string. be.

It is a perspective view which shows the case where this invention is fastened to a support|pillar member. Fig. 2 is a plan view showing a strap fastening device for laterally connecting a banner in a use similar to Fig. 1; 3 is an enlarged cross-sectional view taken along the line A-A in FIG. 2; FIG. 4 is a cross-sectional view taken along line BB of FIG. 3; FIG. It is a partially enlarged cross-sectional view showing a state in which a string is wound around a V-groove. It is a front view of the core which shows a notch. It is a cross-sectional view of the braid showing attachment means of the cords by knots. It is sectional drawing of the core which shows the same means in the way of fixing a knot ball.

INDUSTRIAL APPLICABILITY The string fastening device of the present invention can be used in many ways to tie cut branches, straw, etc., and in addition to being used to fasten to support members (Fig. 1), it can also be used to horizontally connect banners (Fig. 2). ) can also be used. In both cases, the cord fastening device P of the present invention has a cord 2 for fastening a member M to be bound to a braid 1 in which a core 5 is incorporated in a frame 3 . In the drawing, a strut made of a pipe material is shown as a typical member M to be bound. In addition, various bundles such as sticks, straw, and cuttings are also targeted.

Figures 1 to 6 show one embodiment, of which Figures 1 and 2 each show a special application. Although the size of the string fastening device P is not limited, for example, a string 2 is attached to a kumidama 1 of a grippable size. Also, each ball consists of an outer frame 3 molded of plastic and a core 5 fitted therein. A string 2 is tied to the front end of the core 5 of them.

The outer frame 3 serves as a base for handling, and although it has a short cylindrical shape, the intermediate portion is formed in a constricted shape with a small diameter. The inner peripheral surface is formed with grooves for threading the cords 2, and a plurality of grooves forming the threading holes 7 when combined with the core 5 are formed. It may be one, not multiple. In both cases, the grooves are opened as inlets 13 and outlets 14 on both end faces of the outer frame 3 . As indicated by the dashed-dotted line in FIG. 5, the loose spiral shape may have a meandering and inclined string passing hole 7a so as to prevent loosening of the string.

On the other hand, although the core 5 is shaped like an end shaft, it also has a constricted shape and is integrated with the outer frame 3 with a slight back-and-forth slack. This slackness affects the opening/closing width of the V-groove 11 . This is because the rear end portion of the core 5 is formed as a brim portion 9 with a sharply bulging shape, and a V-groove 11 is formed between the inner slope of the brim portion 9 and the end surface of the outer frame 3 . Since the outlet 14 of the through-hole 7 opens into the V-groove 11, the cord 2 pulled out from the V-groove 11 can immediately change direction (a→b) and be wound into the V-groove. The pulling force of the cord 3 acts as (c) force to move the core 5 forward, and this causes the V-groove 11 to slightly tighten, so that the winding 2a of the cord 2 is compressed and fixed.

In order to hold the winding 2a of the cord 2 in the V-groove 11, a notch 15 for hooking the cord 2 is provided on the collar portion 9 at the rear end of the core 5 together with a guide projection 17. - 特許庁This reliably prevents the cords 2 from loosening. But if you try to solve it, you can easily remove it.

FIG. 2 is an extension of the use in which the member M to be tied is a pillar (FIG. 1), and the cords 2 are used to arrange and connect the banners 19, 19 between the pillars. That is, connecting loops 21, 21 are provided at the ends of the hanging curtains 19, 19, and the string 2 is passed through both connecting loops 21, 21 to form a loop 23 by crossing. In this way, when the cords 2 are tightened to the struts (M) as described above, the loops 23 due to crossing are closed, so that the loops 21, 21 are integrally connected, thereby connecting the left and right drapes 19, 19 together.

Conventionally, since the post and the loop were tied with a rope, the work was complicated and work efficiency was not obtained, but as explained above, the fastening device for cords of the present invention could be effectively used.

FIGS. 7 and 8 relate to attachment means for the cord when the cord 2 is provided with a knot ball 25. FIG. FIG. 7 is a cross-sectional view showing the ball 1. As in the previous embodiment, the core 5 is fitted in the outer frame 3 within a range that allows a slight back-and-forth movement. It opens and closes slightly. Note that the cords 2 are also involved in the opening/closing operation.

The string 2 is provided with a through-hole 27 at its center so that it can be attached to the center of the core 5, and a dividing wall 29 is formed so as to divide it into two. The string 2 is passed through one of the divided streets 27a. However, the dividing wall 29 is missing at the rear end, and the end of the dividing wall 29 is provided with a notch 31 having a width over which the cord 2 is hung, so that the knot ball 25 of the cord 2 is confined to one side of the through hole 27. It can be hung in a state where it is difficult to come off. Thus, a stable attachment state in which the cord 2 is pulled out from the front end of the through hole 27 is obtained. Also, the attachment of the cord 2 can be done easily and quickly.

P String fastening device M Member to be bound 1 Braided ball 2 String 3 Outer frame 5 Core 7, 7a String passing hole 9 Flange 11 V groove 13, 14 Opening 15 Notch 17 Guide projecting piece 19 Banner 21 Loop 23 Connection ring

Claims (4)

It is integrated with a short cylindrical outer frame that is constricted in an hourglass shape by fitting it in a state that allows it to move back and forth slightly to the extent that integration is maintained with the outer frame, and the rear end has a large diameter. A braided ball consisting of a similarly constricted core and a string attached to the front end of the core so that it can be hand-twisted for fastening to the member to be bound, and the core has an outer frame at the rear end It has a collar that protrudes from the mouth of the outer frame and forms a V-groove with the end face of the outer frame. A fastening device for a string, characterized in that the tip of the string pulled out from the hole is wound around the V-groove and held. 2. The fastening device for lacing according to claim 1, wherein the lacing hole is a groove formed in the inner peripheral surface of the outer frame. 3. A fastening device for a cord according to claim 1 or 2, wherein a notch is provided in the brim portion to allow the tip of the cord to bite into the V-groove so that the tip of the cord is wound around the V-groove and held. A means for attaching a string by providing a knot ball at the proximal end of the string, wherein a through hole is provided in the center of the core to be attached so that the string can be passed through the front and back, and the string is pulled out inside the hole. A dividing wall is provided in the form of dividing the into two parts, and the rear end portion of the dividing wall is formed so as to be missing, and a notch is provided in the missing edge of the rear end of the dividing wall to which the string is fitted and the knot ball is hooked. A fastening device for a cord according to 1, 2 or 3.

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