JP6767056B2 - Safety belt - Google Patents

Description

The present invention relates to a safety belt including a pair of thigh bands that are wound around both thighs of the wearer.

Conventionally, it is a so-called full harness type safety belt that is attached to a worker (wearer) who works in a high place with a lifeline, and a pair of shoulder belts that are hung around both shoulders of the wearer and the wearer. It is known that the thighs are provided with a pair of thigh girdles that are wound around both thighs (see, for example, Patent Document 1).

In the so-called full harness type safety belt, the right shoulder belt that is hung around the wearer's right shoulder is connected to the left thigh belt that is wound around the wearer's left thigh. On the contrary, the left shoulder band that is hung around the wearer's left shoulder is connected to the right thigh band that is wound around the wearer's right thigh. The safety belt of Patent Document 1 is a so-called X-type safety belt provided with a pad that intersects both shoulder belts in an X shape on the back of the wearer.

In addition, in order to improve the ease of movement of the wearer, the two shoulder girdles extending from both thighs are overlapped once with a binding tool provided around the wearer's waist, and then the wearer's back. A safety belt (Y-shaped safety belt) is also known in which the shoulder girdle is branched into a Y shape toward the shoulder of the corresponding wearer by using a branch member located around the shoulder (see, for example, Patent Document 2). ..

Further, as this kind of safety belt, a safety belt in which the shoulder girdle (and the leg girdle) is continuously crossed around the hip bone and the thigh girdle is formed in an annular shape is known (see, for example, Patent Document 3). Further, in this case, the pair of thigh bands are connected by a connecting band so as not to be too far apart from each other.

Japanese Unexamined Patent Publication No. 2006-223639 Japanese Unexamined Patent Publication No. 2013-81597 Japanese Unexamined Patent Publication No. 11-333011

By the way, in the above-mentioned conventional safety belt, when the wearer is suspended by a lifeline connected to the back side during work at a high place, the thigh band is pulled by the shoulder band and the leg band, and the thigh band is pulled around the hip joint of the wearer. The thigh band is in a tightly bitten state. At this time, even if the connecting band connecting both thigh bands is located on the buttocks side, it is in a state of being suspended by the lifeline on the back side of the wearer, so that both thigh bands have a pulling force from the front to the rear. As a result, the connecting band is displaced from the lower part of the buttocks, and the connecting band hardly receives the weight (the weight of the wearer).

This has the disadvantage that the wearer feels pain due to the thigh band that bites tightly around the hip joint.

In view of the above points, it is an object of the present invention to provide a safety belt capable of reducing pressure on the thigh band around the hip joint when suspended by a lifeline on the back side.

In order to achieve such an object, the present invention has a pair of shoulder bands wrapped around both shoulders of the wearer, a pair of thigh bands wrapped around both thighs of the wearer, and the thigh band. In a safety band including a leg band to be connected, a connecting member through which at least one of the shoulder band and the leg band is inserted to connect a lifeline, and a connecting band connecting the pair of thigh bands to each other, the shoulder. The band and the leg band are fixed to the front portion of the thigh band, and the leg band includes a superimposing portion that overlaps the thigh band from the rear side to the fixed position to the thigh band. It is characterized by. In the present specification, the anterior portion of the thigh band refers to the side located anterior to the hipbone of the wearer.

According to the present invention, since the shoulder girdle and the leg girdle are fixed to the front portion of the thigh girdle, when the shoulder girdle and the leg girdle are suspended by the lifeline on the back side, the shoulder girdle and the leg girdle transmit. The weight (weight) of the wearer is applied to the thigh band as a pulling force diagonally backward (in the direction of the waist and back) from the front portion of the thigh band.

The pulling force applied to the anterior part of the thigh band acts to pull up the anterior part of the wearer's thigh (or hip joint), and the thigh band has a higher anterior side and a lower posterior side to support the wearer. .. Then, since the connecting band connecting both thigh bands hits the lower side of the wearer's buttocks, the wearer is in a state of being roughly seated on the connecting band. As a result, it is possible to reduce the pain of the wearer due to the compression or biting of the thigh band around the hip joint, as compared with the case where the pulling force is applied to the thigh band from the rear or side of the thigh band as in the conventional case. ..

Further, in the present invention, it is preferable that the thigh band is provided with an accommodating portion that maintains the fixed state of the leg band and accommodates the polymerized portion so as to escape upward.

The leg band is connected and fixed to the thigh band with a slack by providing the overlapping portion. The overlapping portion that becomes the slack of the leg band is accommodated in the accommodating portion of the thigh band and is concealed from the outside, so that the appearance is prevented from being deteriorated.

The overlapping portion is exposed upward from the accommodating portion of the thigh band when the wearer is walking or the like, and the transmission of the pulling force from the leg band to the thigh band is relatively small. As a result, the restriction on the movement of the thigh band by the leg band is relaxed, so that the wearing feeling of the safety belt can be improved.

Further, the present invention includes a pair of shoulder girdles that are wound around both shoulders of the wearer, a pair of thigh bands that are wound around both thighs of the wearer, and a leg band that is connected to the thigh band. In a safety band including a connecting member through which at least one of the shoulder girdle and the leg band is inserted to connect a lifeline and a connecting band connecting the pair of thigh bands to each other, the shoulder girdle and the leg band Is fixed to the front portion of the thigh band, and the connecting band is provided with a folded portion that is folded upward via a pair of left and right bent portions extending in the longitudinal direction thereof. .. Since the connecting band is provided with a folded portion, a relatively wide surface in contact with the buttocks can be secured. As a result, when the wearer is suspended by a lifeline, the connecting band reliably supports the wearer's buttocks, and the tightening around the hip joint by the thigh band due to the weight (weight) of the wearer is further reduced. be able to.

In the present invention, the shoulder girdle and the leg girdle may be fixed to the front part of the thigh band at the same position, or are fixed to the front part of the thigh band at positions separated from each other. You may.

Explanatory drawing which shows the safety belt of one Embodiment of this invention. Explanatory drawing which shows the back side of the safety belt of this embodiment. Explanatory drawing which shows the annular connecting member of the safety belt of this embodiment and the peripheral part thereof. The explanatory view which shows the state which the shoulder girdle of this embodiment is shifted to one side. Explanatory drawing which enlarges and shows the connecting band of this embodiment. The explanatory view which shows the wearing state of the safety belt of this embodiment from the rear side of a wearer. The explanatory view which shows the wearing state of the safety belt of this embodiment from the left side of the wearer. Explanatory drawing which partially shows the deformation example of a leg band and a thigh band.

Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the safety belt 1 of the present embodiment is a so-called full harness type that is attached to a worker (wearer) working at a high place with a lifeline, and both of the wearers. It is provided with a pair of shoulder girdles 2 and 3 that are wound around the shoulders, a pair of thigh bands 4 and 5 that are wound around the wearer's thighs, and a waist band 6 that is wound around the wearer's waist. ing.

Both shoulder girdles 2 and 3 are composed of the same band-shaped band-shaped body, and are formed by passing the central portion of the band-shaped body through an annular connecting member 7 located on the back of the wearer and folding back in a V shape. The annular connecting member 7 is integrally provided with a D ring 8 (anchor ring) and has an 8-shaped shape, and the annular connecting member 7 also has a function as a D ring stopper for positioning the D ring 8. A lifeline is connected to the annular connecting member 7 via the D ring 8.

The shoulder girdles 2 and 3 extend downward on the front side (chest side) of the wearer, and the lower ends thereof are the anterior parts of the thigh bands 4 and 5 (the side located in front of the wearer's hip bone). It is fixed to.

By fixing the shoulder girdles 2 and 3 to the front part of the thigh bands 4 and 5, even if a tool bag or the like is attached to the pelvic girdle 6, the shoulder girdles 2 and 3 are less likely to come into contact with the tool bag or the like, and the shoulder girdles 2 and 3 become It does not get in the way.

Further, the thigh bands 4 and 5 are connected by a connecting band 300, and are configured so that two rings can be formed by the same band-shaped body. The annular connecting member 7 is provided with a leg band 11 which is slidably connected and fixed at both ends to the rear front portion of the pair of thigh bands 4 and 5. Like the shoulder girdles 2 and 3, the leg girdle 11 is inserted through the annular connecting member 7 at the center thereof and folded downward in a V shape. The leg band 11 and the shoulder band 2 and 3 are fixed to the same position in the front portion of the thigh band 4 and 5.

As shown enlarged in FIG. 3, the shoulder girdles 2 and 3 and the leg girdle 11 are made from the first band body 100 and the first band body 100, which form most of the shoulder girdles 2 and 3 and the leg band 11, respectively. It is also composed of a short second band 200.

In FIG. 3, the second band 200 is hatched so that the first band 100 and the second band 200 can be easily distinguished. The first band 100 is inserted into the annular connecting member 7 and folded back. The first band 100 is folded back so as to be opened in a V shape around a folded portion of the annular connecting member 7. The second band 200 is arranged inside the folded first band 100.

Here, the portion of the first band 100 extending from one of the annular connecting members 7 (for example, the side toward the back of the wearer) through the annular connecting member 7 is annularly passed through the first one portion 110 and the annular connecting member 7. The portion of the first band 100 extending from the other of the connecting member 7 (for example, the side separated from the wearer's back) is passed through the first other portion 120 and the annular connecting member 7 and one of the annular connecting members 7 (for example, the wearer's). The portion of the second band 200 extending from the side toward the back) is passed through the second one portion 210, the annular connecting member 7, and the second band extending from the other of the annular connecting member 7 (for example, the side separated from the wearer's back). Let the part of the body 200 be the second other part 220.

The tip of the second other portion 220 is fixed to the first one portion 110 at a position separated from the annular connecting member 7 by a predetermined length. The second one portion 210 is fixed to the first other portion 120 at a position separated from the annular connecting member 7 by a predetermined length. The predetermined length is set so that there is no problem in the safety of the safety belt 1 and the lengths of the shoulder belts 2 and 3 can be finely adjusted when the wearer raises one shoulder upward. The specific length differs depending on the size and type of the safety belt 1.

Both thigh bands 4 and 5 are connected to each other by a connecting band 300. By connecting both thigh bands 4 and 5 with the connecting band 300, it is possible to prevent the thigh bands 4 and 5 from being too far apart from each other.

As shown in FIG. 5, the connecting band 300 is provided with a folded-back portion 310 that is folded upward from the outside of the connecting band 300 (the side opposite to the side that contacts the wearer). Both ends of the folded portion 310 are sewn on the thigh bands 4 and 5 so that the folded state can be maintained.

According to the safety belt 1 of the present embodiment, as shown in FIGS. 6 and 7, the connecting belt 300 connecting the pair of thigh belts 4 and 5 is provided with the folded-back portion 310 folded upward. , The side edge (upper side edge) of the connecting band 300 is less likely to come into contact with the wearer's buttocks, and the folded portion 310 of the connecting band 300 firmly wraps the wearer's buttocks without causing discomfort to the wearer. Can be supported like this.

Further, according to the safety band 1 of the present embodiment, the leg band 11 and the shoulder bands 2 and 3 are fixed to the same position in the front portion of the thigh bands 4 and 5, so that the annular connecting member 7 is provided. When the wearer is suspended from the back side by a lifeline, the weight (weight) of the wearer becomes a pulling force diagonally backward (toward the waist and back) from the front part of the thigh bands 4 and 5, and the thigh band. Granted to 4 and 5. At this time, the thigh bands 4 and 5 are raised on the front side and lowered on the rear side to support the wearer.

Then, since the connecting band 300 connecting the two thigh bands 4 and 5 hits the lower side of the buttocks of the wearer, the wearer is roughly seated on the connecting band 300. As a result, it is possible to reduce the pressure and bite of the thigh bands 4 and 5 around the hip joint. Therefore, it is possible to reduce the pain that the wearer in the suspended state receives from the thigh bands 4 and 5.

The leg bands 11 and the shoulder bands 2 and 3 do not have to be the same as long as they are fixed to the front portions of the thigh bands 4 and 5. That is, as shown in FIG. 8A, the fixed position a by sewing the shoulder girdles 2 and 3 and the thigh bands 4 and 5 and the fixed position b by sewing the leg band 11 and the thigh bands 4 and 5 are separated from each other. You may. In FIGS. 8A and 8B, one thigh band 4 and shoulder girdle 2 are shown, but the same applies to the other thigh band 5 and shoulder girdle 3.

Further, as shown in FIGS. 8A and 8B, the lower end portion of the leg band 11 (the portion from the rear of the fixed position b to the thigh band 4 and 5 to the fixed position b) is designated as the thigh band 4 and 5. The length of (in the present embodiment) to be polymerized may be formed.

The overlapping portion 12 is formed so that the lower end portion of the leg band 11 is folded back along the thigh bands 4 and 5. The thigh bands 4 and 5 are provided with accommodating portions 13 for each overlapping portion 12. The accommodating portion 13 is formed by forming the thigh bands 4 and 5 in a double manner and forming between them. The polymerization portion 12 acts as a slack in the leg band 11.

When an upward pulling force is applied from the leg band 11 to the thigh bands 4 and 5 when the wearer is walking or the like, as shown in FIG. 8B, the overlapping portion 12 changes the accommodating portion 13 of the thigh bands 4 and 5. The pulling force applied to the thigh bands 4 and 5 from the leg band 11 is relaxed by being pulled upward from the leg band 11.

This makes it easier for the wearer to move and improves the wearing feeling of the safety belt 1. Moreover, when the pulling force from the leg bands 11 to the thigh bands 4 and 5 is not applied, the overlapping portion 12 is concealed in the accommodating portions 13 of the thigh bands 4 and 5, and the appearance is improved.

1 ... safety belt, 2, 3 ... shoulder girdle, 4, 5 ... thigh belt, 7 ... annular connecting member (connecting member), 11 ... leg belt, 12 ... overlapping part, 13 ... accommodating part, 300 ... connecting band, 310 … Folding part.

Claims (5)

A pair of shoulder girdles that are hung around both shoulders of the wearer, a pair of thigh girdles that are wound around both thighs of the wearer, a leg band that is connected to the thigh band, and the shoulder girdle and the above. In a safety band including a connecting member through which at least one of the leg band is inserted to connect a lifeline and a connecting band connecting the pair of thigh bands to each other.
The shoulder girdle and the leg girdle are fixed to the anterior portion of the thigh girdle .
The leg band is a safety belt including a superposed portion that polymerizes on the thigh band from behind the fixed position to the thigh band to the fixed position . The thigh bands, safety belts according to claim 1, wherein the this with the housing portion to escape freely accommodated upward the polymerization unit maintains the fixed state of the leg band. A pair of shoulder girdles that are hung around both shoulders of the wearer, a pair of thigh girdles that are wound around both thighs of the wearer, a leg band that is connected to the thigh band, and the shoulder girdle and the above. In a safety band including a connecting member through which at least one of the leg band is inserted to connect a lifeline and a connecting band connecting the pair of thigh bands to each other.
The shoulder girdle and the leg girdle are fixed to the anterior portion of the thigh girdle.
The safety belt is characterized in that the connecting band is provided with a folded portion that is folded upward via a pair of left and right bent portions that extend in the longitudinal direction thereof . The safety belt according to any one of claims 1 to 3, wherein the shoulder girdle and the leg girdle are fixed to the front portion of the thigh girdle at the same location . The safety belt according to any one of claims 1 to 3 , wherein the shoulder girdle and the leg girdle are fixed to a front portion of the thigh girdle at positions separated from each other .