JP2023013026A - String clasping tool and string clasping method - Google Patents

Abstract

To perform fixing/unfixing using a string through simple work.SOLUTION: A string clasping tool 10 comprises a fixed part 1 a base part 2, a first hook part 6 and a second hook part 7. The fixed part 1 can be fixed to another member. The base part 2 extends from the fixed part 1. The first hook part 6 extends while being branched from the base part 2 and a string can be hooked therein. The second hook part 7 extends while being branched from the base part 2 to an opposite side of the first hook part 6 and the string can be hooked therein. A first guide face 6a which is inclined closer to the fixed part 1 side as being away from the base part 2, for guiding the hooked string is formed in the first hook part 6. A second guide face 7a which is inclined closer to the fixed part 1 side as being away from the base part 2, for guiding the hooked string is formed in the second hook part 7.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a string fastener for detachably fastening a string.

For example, at a construction site, scaffolding is sometimes erected temporarily so as to surround a building. In many cases, the outer surface of the scaffolding is provided with a protective sheet in an upright shape in order to prevent objects from falling from the work floor and the building, and to prevent paint from scattering around the scaffold.

Since the protective sheet is in contact with the external environment over a large area, it may be blown by strong winds and cause the scaffolding to collapse. Therefore, it is necessary to remove the protective sheet from covering the surroundings of the scaffolding before the strong wind from a typhoon or the like acts on the protective sheet, and restore the protective sheet after the strong wind subsides.

In Patent Document 1, a string is passed through a ring drilled in the vertical direction at the left and right ends of the sheet at a pitch of, for example, 300 m, and this string is attached to a vertical member of the scaffold (in the case of a single pipe scaffold, a vertical single pipe, a frame In the case of scaffolding, it is described that the horizontal direction is fixed by tying it to the vertical frame member).

JP 2020-117912 A

In the method of simply tying with a string, such as that described in Patent Document 1, tying/untying the string was troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a string fastener that can be fixed/unfixed by a string with a simple operation.

Means and Effects for Solving Problems

The problems to be solved by the present invention are as described above. Next, the means for solving the problems and the effects thereof will be described.

According to a first aspect of the present invention, a string fastener having the following configuration is provided. That is, the string fastener includes a fixed portion, a base portion, a first hook portion, and a second hook portion. The fixed portion can be fixed to another member. The base extends from the fixed portion. The first hanging portion branches off from the base portion and can be hung with a string. The second hooking portion branches off from the base portion and extends to the side opposite to the first hooking portion, and can be used to hang a string. The first hooking portion is formed with a first guide surface that guides the hooked string, which is inclined so as to approach the side of the fixed portion as it separates from the base portion. The second hooking portion is formed with a second guide surface that guides the hooked string and is inclined so as to approach the side of the fixed portion as it separates from the base portion.

Thus, by hooking the string on the first hooking portion and the second hooking portion, the string can be fixed to the string fastener while securing a certain strength against the pulling of the string along the direction in which the base extends. . Therefore, it is possible to reduce the trouble of attaching and detaching the string. In addition, the inclination of the first guide surface and the second guide surface can prevent the attached string from coming off the string fastener.

It is preferable that the string fastener described above has the following configuration. That is, an elongated concave portion is formed on the side farther from the fixed portion than the second guide surface. The longitudinal direction of the concave portion is substantially parallel to the direction in which the first hooking portion and the second hooking portion are arranged. In the longitudinal direction of the concave portion, the end portion on the far side from the first hook portion is open.

Thereby, the slack can be easily removed by pulling the string in a state in which the string is put in the concave portion and in a state in which the string is hung on the first hooking portion. In addition, after pulling the string in this way, it becomes easy to handle the string for hooking it on the second hooking portion.

In the above string fastener, it is preferable that a retaining portion is formed in the vicinity of the open end of the recess.

This makes it difficult for the string to come off from the concave portion.

In the string fastener, it is preferable that a through-shaped fixing hole is formed in the fixed portion.

This makes it possible to realize a simple construction for fixing another member to the string fastener.

In the above-mentioned string fastener, it is preferable that the place where the string is fixed to the fixed portion is located away from the second hooking portion with respect to the center of the base portion.

Accordingly, when the string is pulled while being hooked on the first hooking portion, the pulling force can be favorably received by the fixed portion.

The string fastener is preferably used as a string for fixing the protective sheet of the temporary scaffolding.

This makes it easy to release and re-fix the protective sheet as a countermeasure against strong winds.

According to a second aspect of the present invention, there is provided the following string fastening method using the string fastener described above. That is, this strap fastening method includes a first step, a second step, and a third step. In the first step, a string is hung on the first hooking portion. In the second step, the tip of the string hooked on the first hooking portion is pulled in a direction generally along the base portion and in a direction away from the fixed portion. In the third step, a string is hung on the second hooking portion.

As a result, slack in the string can be easily removed by pulling the string in the second step. Therefore, strong fixation by the string can be easily performed.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the whole structure of the string fastener based on one Embodiment of this invention. The perspective view which shows the state which hung the string on the hook part of the string fastener. The perspective view which shows the state which hooked the string on the 1st hook part. The perspective view which shows the state which moved the string to the 2nd hook part side. The perspective view which shows the state which hooked the string on the 2nd hooking part and the 1st hooking part. The perspective view which shows the state which hung the string on the hook part. The front view which shows the state which closed the protective sheet in the scaffolding temporarily built. The front view which shows the state which opened the protective sheet. The perspective view which expands and shows the fixing|fixed part which fixes a protective sheet to the vertical member of a scaffold. The perspective view which shows the string fastener of a modification.

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the overall construction of a string fastener 10 according to one embodiment of the present invention.

A string fastener 10 shown in FIG. 1 is a device that can be fixed by hanging a string 11 .

The string fastener 10 includes a fixed portion 1 , a base portion 2 , a first hook portion 6 , a second hook portion 7 and a hook portion 8 .

A member different from the string fastener 10 can be fixed to the fixed portion 1 . In this embodiment, the fixed part 1 is formed in a circular ring shape. A circular fixing hole 1a is formed through the center of the fixed part 1 .

In this embodiment, the member fixed to the fixed portion 1 is a string 11 which will be described later. In other words, one string 11 is fixed to the fixed portion 1 and is also fixed to the base portion 2, the first hook portion 6, the second hook portion 7 and the hook portion 8 at the same time. However, a member different from the string 11 may be fixed to the fixed portion 1 .

The base portion 2 is formed so as to be continuous with the fixed portion 1 . The base portion 2 is configured to elongate from the fixed portion 1 . A first hooking portion 6 and a second hooking portion 7 are arranged so as to branch in a substantially T-shape at the tip portion where the base portion 2 extends from the fixed portion 1 . A string 11 can be wound around the base 2 for at least half a turn.

The first hook portion 6 is configured to branch and extend from the tip of the base portion 2 . The first hooking portion 6 is elongated. The direction in which the first hook 6 extends is perpendicular to the longitudinal direction of the base 2, or forms an angle smaller than the perpendicular.

A first guide surface 6 a is formed on the first hook portion 6 . The first guide surface 6a is inclined so as to approach the fixed portion 1 as it separates from the base portion 2 .

The second hooking portion 7 is configured to branch and extend from the tip of the base portion 2 . The second hooking portion 7 is formed elongated. The direction in which the second hook 7 extends is perpendicular to the longitudinal direction of the base 2 or forms an angle smaller than the perpendicular.

A second guide surface 7 a is formed on the second hook portion 7 . Like the first guide surface 6a, the second guide surface 7a is inclined so as to approach the fixed portion 1 as it separates from the base portion 2. As shown in FIG.

A hook portion 8 is formed so as to straddle the first hook portion 6 and the second hook portion 7 . The hook portion 8 is formed with an elongated hook groove (recess) 8a. The hook groove 8a is arranged farther from the fixed portion 1 than the second guide surface 7a. A string 11, which will be described later, can be hooked and held in the hook groove 8a.

The longitudinal direction of the hook groove 8a is arranged substantially along the direction in which the first hooking portion 6 and the second hooking portion 7 are arranged. The end of the hook groove 8a on the side farther from the first hooking portion 6 in the longitudinal direction is open.

An inclined projection (retaining portion) 8b is formed near the open end of the hook groove 8a. The projection 8b can make it difficult for the string 11 to slip out of the hook groove 8a. Inclined guide surfaces 8c and 8d are formed around the open end of the hook groove 8a. Since the string 11 is guided to the open end of the hook groove 8a by the guide surfaces 8c and 8d, the string 11 can be easily put into the hook groove 8a from the outside.

Next, an example of a method for fixing the string 11 to the first hooking portion 6 and the second hooking portion 7 of the string fastener 10 will be described with reference to FIGS. 2 to 6. FIG. In the following description, regarding the string fastener 10 shown in FIGS. 2 to 6, the front side in the drawings may be called the front side, and the back side may be called the back side.

FIG. 2 shows the string fastener 10 with the end of the string 11 fixed to the fixed portion 1 . Although any string can be used as the string 11, a string made of polyethylene is used in this embodiment.

First, as shown on the right side of FIG. 2, the operator hooks another end of the string 11 onto the hook groove 8a of the hook portion 8 and passes it from the back side to the front side.

Next, as shown by the thick line arrow in FIG. 2, the operator passes the front side portion that has passed through the hook groove 8a to the back side of the first hooking portion 6 so as to hook it on the first hooking portion 6, and the fixed portion is fixed. Pull away from 1. Thus, the state shown in FIG. 3 is obtained.

Next, the operator crosses the end of the string 11 on the back side of the string fastener 10, as indicated by the thick arrow in FIG. Let Further, the end portion of the string 11 is pulled through the back side of the second hook portion 7 toward the fixed portion 1 side. Thus, the state shown in FIG. 4 is obtained.

Next, the operator passes the end of the string 11 through the front side of the base portion 2 and the back side of the first hook portion 6 in this order, as indicated by the thick arrow in FIG. As a result, the string 11 is hooked on the second hooking portion 7 , wound around the base portion 2 about half a turn, and then hooked on the first hooking portion 6 . Thus, the state shown in FIG. 5 is obtained.

Finally, as indicated by the thick arrow in FIG. 5, the end of the string 11 is hooked again to the hook groove 8a of the hook portion 8 and passed from the back side to the front side.

As a result, the string 11 is firmly fixed to the string fastener 10 as shown in FIG. To remove the string 11 from the string fastener 10, the above procedure should be reversed.

In the state shown in FIG. 3, the string 11 is hooked on both the hook portion 8 of the string fastener 10 and the first hook portion 6 . 2 to 6 are performed while pulling the tip of the string 11. In particular, by pulling the tip of the string 11 in the direction of arrow P in the state shown in FIG. slack can be effectively removed. At this time, the string 11 hooked on the first hooking portion 6 is guided toward the base portion 2 by the inclination of the first guide surface 6a described above. Therefore, in the process of pulling the string 11 in the direction of the arrow P as described above, the string 11 will not come off the first hooking portion 6 .

As shown in FIG. 1 , the fixed portion 1 is arranged with the center 2 c of the base portion 2 biased toward the side farther from the second hooking portion 7 (the side closer to the first hooking portion 6 ). Therefore, when the string 11 is hung on the first hooking portion 6 and pulled as shown in FIG. be. Therefore, the guiding action of the first guide surface 6a can be ensured. Therefore, in the state shown in FIG. 3, the string 11 is difficult to come off from the first hooking portion 6. As shown in FIG.

FIG. 4 shows a state immediately before the string 11 is hooked on the second hook 7. As shown in FIG. Due to the inclination of the second guide surface 7a described above, the strap 11 can be hung on the second hooking portion 7 while being guided to a portion near the base portion 2, as shown in FIG. Thus, the inclination of the second hooking portion 7 makes it difficult for the string 11 to come off the second hooking portion 7 . In addition, since the string 11 is less likely to become loose in the vicinity of the second hooking portion 7, firm fixation can be realized.

Next, an example of the application of the string fastener 10 will be described.

FIG. 7 shows a scaffolding 21 temporarily installed so as to be close to the building 20. As shown in FIG. This scaffold 21 is a so-called single-tube scaffold, but the configuration of the scaffold is arbitrary. 7 and 8 show the scaffolding 21 viewed from the outside of the building. For convenience of representation in the drawings, the building 20 and the scaffolding 21 are indicated by dashed lines in FIGS.

A suspension rope (an opening/closing guide member) 22 is stretched horizontally on the upper edge of the scaffold 21 . The suspension rope 22 is provided over the entire width of the scaffold 21. - 特許庁Protective sheets 25 and 26, which will be described later, can be hung from the hanging ropes 22 like curtains and supported. It is preferable that the suspension ropes 22 are sufficiently tensioned so that they do not sag under the weight of the protective sheets 25,26. Although the structure for tightening the suspension rope 22 is arbitrary, for example, the structure may be such that the suspension rope 22 is connected to a belt tightener and pulled.

Two protective sheets 25 and 26 are provided with a vertical member 21a located near the center in the width direction among the vertical members forming the scaffold 21 as a boundary. The protective sheets 25 and 26 are each rectangular. The protection sheets 25 and 26 may have any configuration, but may be configured as mesh sheets, for example. Each of the protective sheets 25 and 26 may be composed of one sheet, or may be composed of two or more sheets joined together vertically or horizontally.

Although not shown in FIG. 7, through holes are formed at appropriate intervals in portions corresponding to the sides of the rectangular protective sheets 25 and 26 . A link member 23 is fixed to the through holes located at the upper ends of the protective sheets 25 and 26 , and the link member 23 is attached to the suspension rope 22 . A plurality of link members 23 are provided with respect to the protective sheets 25 and 26 at appropriate intervals.

Each link member 23 is slidable with respect to the suspension rope 22 . Therefore, the protective sheets 25 and 26 can be moved away from each other from the position of the longitudinal member 21a to open the protective sheets 25 and 26 as shown in FIG.

The configuration of the link member 23 is arbitrary. For example, a member provided with a pulley can be used as the link member 23 and attached so that the pulley rides on the hanging rope 22 . Also, for example, a known binding band can be used as the link member 23 . By giving sufficient play to the loop of the binding band, the binding band can slide and move with respect to the hanging rope 22.例文帳に追加

The string 11 and the string fastener 10 are used to connect and fix the protective sheets 25 and 26 in the horizontal direction, for example, at the portion indicated by symbol A in the closed state of the protective sheets 25 and 26 as shown in FIG. be able to.

An enlarged view of the fixing point A is shown in FIG. Unlike FIG. 7, FIG. 9 shows protective sheets 25 and 26 viewed from the inside. The operation of fixing both the two protection sheets 25 and 26 to the longitudinal member 21a will be described with reference to FIG.

In advance, the operator fixes one end of the string 11 to the fixed portion 1 of the string fastener 10 . The method of tying the string 11 to the fixed part 1 is arbitrary.

As shown in FIG. 9, the worker fixes the string 11 by tying it to the through hole 25a of the protective sheet 25 in advance. The operator pulls out the ends of the string 11 fixed to the protective sheet 25 on the side where the string fastener 10 (fixed portion 1) is fixed to the side of the protective sheet 26 on the opposite side, and attaches the vertical member. 21a.

Next, the operator passes the end of the string 11 fixed to the protective sheet 25 on the side where the string fastener 10 is not fixed through the through hole 26 a of the protective sheet 26 . The worker pulls out the string 11 that has passed through the through hole 26a to the side of the protective sheet 25 on the opposite side, and makes it go around the vertical member 21a.

FIG. 9 shows the state immediately before the string 11 is hung on the string fastener 10. As shown in FIG. 2 to 6 are performed from this state, the protective sheets 25 and 26 can be easily fixed to the longitudinal members 21a by the strings 11. As shown in FIG.

The above operation is performed for each of the through holes 25a and 26a arranged side by side at appropriate intervals in the portion where the two protective sheets 25 and 26 are in contact in FIG. As a result, each fixing point A is fixed, and the closed state of the protective sheets 25 and 26 as shown in FIG. 7 can be firmly maintained.

If strong winds are expected in the near future, the protective sheets 25 and 26 can be opened as shown in FIG. The protective sheets 25 and 26, which are appropriately folded during the opening process, are fixed to the vertical members 21b located at the ends of the scaffold 21 in the width direction. For this fixation, the string fastener 10 may be used, or another method may be used.

Conventionally, the protective sheets 25 and 26 were fixed to the vertical member 21a using only the string 11. As shown in FIG. In this embodiment, by using the string fastener 10, the string 11 can be fixed by the simple steps shown in FIGS. Therefore, for example, even when a worker wears work gloves, the work is easy and convenience is enhanced.

As described above, the string fastener 10 of this embodiment includes the fixed portion 1 , the base portion 2 , the first hook portion 6 and the second hook portion 7 . The fixed part 1 can be fixed to a member different from the string fastener 10 . The base portion 2 extends from the fixed portion 1 . The first hooking portion 6 branches off from the base portion 2 and extends, and a string 11 can be hooked thereon. The second hooking portion 7 branches off from the base portion 2 and extends to the side opposite to the first hooking portion 6, and a string 11 can be hooked thereon. The first hooking portion 6 is formed with a first guide surface 6a that guides the hooked string 11 and is inclined so as to approach the fixed portion 1 side as it moves away from the base portion 2 . The second hooking portion 7 is formed with a second guide surface 7a that guides the hooked string 11 and is inclined so as to approach the fixed portion 1 side as the second hooking portion 7 is separated from the base portion 2 .

Thus, by hooking the string 11 to the first hooking portion 6 and the second hooking portion 7, the string 11 can be attached to the string fastener while securing a certain strength against the pulling of the string 11 in the direction along the base portion 2. It can be fixed at 10. Therefore, it is possible to reduce the trouble of attaching and detaching the string 11. - 特許庁In addition, since the first guide surface 6a and the second guide surface 7a are inclined, it is possible to make it difficult for the strap 11 to come off from the strap fastener 10. - 特許庁

In the string fastener 10 of the present embodiment, a long and narrow hook groove 8a is formed on the side farther from the fixed portion 1 than the first guide surface 6a. The longitudinal direction of the hook groove 8a is substantially parallel to the direction in which the first hooking portion 6 and the second hooking portion 7 are arranged. The end of the hook groove 8a on the side farther from the first hooking portion 6 in the longitudinal direction is open.

As a result, with the string 11 inserted in the hook groove 8a and with the string 11 hooked on the first hooking portion 6, the string 11 is pulled as indicated by the arrow P in FIG. can be Furthermore, the position of the string 11 in the hook groove 8a is stabilized at the end opposite to the open end of the hook groove 8a. Therefore, after the string 11 is drawn and tightened as described above, the handling of the string 11 for hooking on the second hooking portion 7 is facilitated.

In the string fastener 10 of this embodiment, a protrusion 8b is formed near the open end of the hook groove 8a.

This makes it difficult for the string 11 to slip out of the hook groove 8a.

In the string fastener 10 of the present embodiment, a through-shaped fixing hole 1a is formed in the part 1 to be fixed.

As a result, a simple configuration for fixing another member (the string 11 in this embodiment) to the string fastener 10 can be realized.

In the string fastener 10 of the present embodiment, the place where the string 11 is fixed to the fixed portion 1 (specifically, the fixing hole 1a) is positioned farther from the second hooking portion 7 with respect to the center 2c of the base portion 2. positioned off-set.

As a result, when the string 11 is pulled while being hung on the first hooking portion 6 as shown in FIG.

The string fastener 10 of this embodiment is used for the string 11 for fixing the protective sheets 25 and 26 of the scaffolding 21 .

This facilitates switching between the state where the scaffold 21 is not covered by the protective sheets 25 and 26 and the state where it is covered. Therefore, countermeasures against strong winds can be taken more flexibly.

In this embodiment, the string fastener 10 is used to fix the string 11 by the following method. In the first step, the string 11 is hung on the first hooking portion 6 . In the second step, the tip of the string 11 hooked on the first hooking portion 6 is pulled in a direction generally along the base portion 2 and away from the fixed portion 1 . In the third step, the string 11 is hung on the second hooking portion 7 .

As a result, the slackness of the string 11 can be easily removed by pulling the string 11 in the second step. Therefore, strong fixation by the string 11 can be easily performed.

Although the preferred embodiments of the present invention have been described above, the above configuration can be modified, for example, as follows. A single change may be made, or multiple changes may be made in any combination.

The structure of the fixed part 1 is arbitrary. For example, as shown in a string fastener 10x of a modified example in FIG. It may have a corresponding configuration.

The first guide surface 6a and the second guide surface 7a may be curved (for example, arc-shaped) slopes instead of linear slopes.

In the string fastener 10, the hook portion 8 may be omitted.

The steps of FIGS. 3 and 4 may be repeated multiple times instead of just once.

Strings 11 and string fasteners 10 and 10x can be used to fix the edge portion of the protective sheet 25 on the side horizontally opposite to the portion indicated by the fixing point A in FIG. 7 to the vertical member 21b. The same applies to the protection sheet 26 as well.

Fixation by the string 11 and the string fasteners 10, 10x can also be used for purposes other than fixing the protective sheets 25, 26. FIG.

1 Fixed Part 1a Fixing Hole 2 Base 2c Center 6 First Hook 6a First Guide Surface 7 Second Hook 7a Second Guide Surface 8a Hook Groove (Recess)
8b projection (retaining part)
10, 10x string fastener 11 string 21 scaffolding 25, 26 protective sheet

Claims (7)

a fixed part that can be fixed to another member;
a base extending from the fixed portion;
a first hooking portion branching and extending from the base portion and capable of hooking a string;
a second hooking portion branching from the base portion and extending to the side opposite to the first hooking portion, and capable of hooking a string;
with
The first hooking portion is formed with a first guide surface that guides the hooked string, which is inclined so as to approach the fixed portion side as the distance from the base portion increases,
A string fastener characterized in that the second hooking portion is formed with a second guide surface that guides the hooked string and is inclined so as to approach the side of the fixed portion as it separates from the base portion. . The string fastener according to claim 1,
An elongated recess is formed on a side farther from the fixed portion than the second guide surface,
the longitudinal direction of the recess is substantially parallel to the direction in which the first hook and the second hook are arranged;
A string fastener, wherein an end portion of the concave portion on a side farther from the first hook portion in the longitudinal direction thereof is open. The string fastener according to claim 2,
A string fastener, wherein a retaining portion is formed in the vicinity of an open end of the recess. A string fastener according to any one of claims 1 to 3,
A string fastener, wherein a through-shaped fixing hole is formed in the fixed part. A string fastener according to any one of claims 1 to 4,
A string fastener, wherein a place where the string is fixed to the portion to be fixed is offset from the center of the base portion toward a side farther from the second hooking portion. A string fastener according to any one of claims 1 to 5,
A string fastener characterized by being used as a string for fixing a scaffold protective sheet. A string fastening method using the string fastener according to any one of claims 1 to 6,
a first step of hanging a string on the first hanging portion;
a second step of pulling the tip of the string hooked on the first hooking portion in a direction generally along the base portion in a direction away from the fixed portion;
a third step of hanging a string on the second hanging portion;
A strap fastening method comprising:

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