JP2020028461A - Harness type safety belt - Google Patents

Abstract

To prevent an upper limb and a head of a wearer from falling out of a full harness type safety belt even if the wearer falls and a hanging state is caused.SOLUTION: A harness type safety belt includes: a shoulder belt 101 passing a shoulder of a wearer, and extending downward in the front side of the wearer; a back belt 103 formed integrally with the shoulder belt 101 or connected therewith, and extending downward in the rear side of the wearer; a thigh belt passing at least a portion of the thigh of the wearer; a D-ring 107 provided at a portion positioned in the rear side of the wearer; and a side belt 130 connected to at least one of the back belt 103 or the D-ring 107 and the shoulder belt 101, and passed between a lower part from an armpit and a lower end of a rib of the side parts in the body trunk of the wearer so as to intersect with the body axial direction of the wearer.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a harness-type safety belt structure.

  Generally, when working at high altitudes, users are required to wear a safety belt to prevent falls. There is a type of this safety belt called a full harness, a belt that passes through the shoulder and passes through the front of the wearer of the full harness to the thigh and lumbar bone, and the upper back and the back of the shoulder passes through the back of the wearer, the thigh, It is composed of a belt extending to the buttocks or hip bone, a belt provided around the base of the thigh, buttocks, and thighs, a belt passing horizontally through the chest, and the like.

  Further, the full harness has a structure in which a lifeline (hereinafter, referred to as "lanyard") called a D ring is connected to a belt passing through the back. By connecting one end of the lanyard to the D ring and connecting the other end of the lanyard to a single pipe, block reel, or other structure under construction, the lanyard and full harness can be installed even when the wearer falls from the work site. The wearer is suspended through the body, and the safety of the body is ensured.

  There are various configurations of the full harness, and a technique for preventing the entanglement of each belt has been proposed as in the patent document.

JP 2009-112368 A

  For those who work at heights, the safety belt is to prevent falls and protects the body from the impact of a fall in the event of a fall. Therefore, the wearer must securely wear the belt so that the body does not fall off the safety belt.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a full harness that prevents a wearer wearing the full harness from falling off the full harness when the wearer falls.

The full harness type safety belt according to the embodiment passes through the shoulder of the wearer and extends downward on the front side of the wearer, and is formed integrally with or connected to the shoulder belt, and A back belt extending downward on the back side, a thigh belt passing at least a part of the thigh of the wearer, a D ring provided on a portion located on the back side of the wearer, a back belt or a D ring, A side connected to at least one of the shoulder belt and a side of the trunk in the wearer's trunk that passes between the lower side of the axilla and the lower end of the rib in a direction crossing the body axis direction of the wearer. A part belt.
Note that one end of the side belt may be connected to the shoulder belt.
Also, the shoulder belt may have a right shoulder belt passing through the wearer's right shoulder and a left shoulder belt passing through the wearer's left shoulder, in which case, the side belts include the right shoulder belt and the left shoulder belt. You may be connected to both.
Further, the side belt may have one end connected to the right shoulder belt, pass through the right side of the wearer's trunk, the rear of the trunk, and the left side, and the other end may be connected to the left shoulder belt.
In the full harness type safety belt according to the embodiment, the side belt may be connected to the back belt.
Further, the back belt may have a right back belt passing on the right side of the wearer's back and a left back belt passing on the left side of the wearer's back, in which case the side belts may be a right back belt and a left back belt. May be connected to both.
The side belt may have one end connected to the right back belt, pass through the right side, the front, and the left side of the trunk of the wearer, and have the other end connected to the left back belt.
Further, the back belt may be configured to extend downward along the center of the back of the trunk through a belt passing member provided near the D ring or at a position overlapping the D ring in the front-back direction of the wearer. In this case, the side belt may be connected to a position below the belt passing member of the back belt.
Further, the side belt may have one end connected to the back belt, pass through the side of the trunk of the wearer, and be connected to the shoulder belt at the other end.
In addition, the back belt may have a right back belt passing through the right side of the wearer's back and a left back belt passing through the left side of the wearer's back, in which case the shoulder belt is a right shoulder passing through the right shoulder of the wearer. It may have a belt and a left shoulder belt passing through the wearer's left shoulder, in which case the side belts include a right side belt and a left side belt, and the right side belt has one end having the right side shoulder belt. The other end may be connected to the right back belt, and the left side belt may be connected at one end to the left shoulder belt and at the other end to the left back belt.
Further, the shoulder belt may have a right shoulder belt passing through the right shoulder of the wearer and a left shoulder belt passing through the left shoulder of the wearer. In this case, the side belt includes a right belt and a left belt. The right belt may have one end connected to the right shoulder belt, and the left belt may have one end connected to the left shoulder belt.
In the full harness type safety belt according to the embodiment, one end of the side belt may be connected to the D ring.
Further, the side belt may have one end connected to the D ring, pass through the right side, the front and the left side of the trunk of the wearer, and may be connected to the D ring at the other end.
Further, the shoulder belt may have a right shoulder belt passing through the right shoulder of the wearer and a left shoulder belt passing through the left shoulder of the wearer. In this case, the side belt includes a right belt and a left belt. The right belt may have one end connected to the D-ring and the other end connected to the right shoulder belt, and the left belt may have one end connected to the D-ring and the other end connected to the left shoulder belt.
The side belt described above may be formed of a non-stretchable member.
Alternatively, the side belt may be made of a material having a low elasticity.
The side belt may be made of the same material as any one of the back belt, the shoulder belt, and the thigh belt.
In the side belt described above, the side belt may be provided with a buffer at least at a part on the axillary side of the wearer.
Alternatively, in the thickness direction, at least a part of the side belt on the axillary side of the wearer may be a planar portion facing the axilla.
The connection of the side belts described above may be performed by fixing without being detached.
The side belt may be fixed by sewing.
In the harness-type safety belt described above, at least one of the thigh belt and the back belt that passes through the buttocks of the wearer may be provided with a telescopic member that can expand and contract.
Further, the lower end of the back belt and the thigh belt may be connected to each other, and a connecting belt passing through the buttocks of the wearer may be provided. In this case, at least one of the thigh belt and the connection is provided with a telescopic member that is stretchable. May be provided.

  Since the harness type safety belt according to the present invention is provided with the side belt, even if the wearer falls and is suspended, the upper limb and the head are prevented from falling off from the full harness type safety belt. It is possible.

The schematic diagram showing an example of the full harness type safety belt concerning a 1st embodiment. The schematic diagram which shows the modification of the connection structure of a thigh belt and a connection belt. The schematic diagram which shows the modification of the connection structure of a thigh belt and a connection belt. The schematic diagram which shows the modification of the connection structure of a thigh belt and a connection belt. The rear view which shows the state which the user wore the full harness type safety belt which concerns on 1st Embodiment. The schematic diagram which shows an example of the full harness type safety belt which concerns on the modification 1. The schematic diagram which shows an example of the full harness type safety belt which concerns on the modification 2. The rear view showing the state where the user wore the full harness type safety belt concerning a 2nd embodiment. The rear view showing the state where the user wore the full harness type safety belt concerning a 2nd embodiment. The schematic diagram showing an example of the full harness type safety belt concerning a 3rd embodiment. The schematic diagram showing the modification of the full harness type safety belt concerning a 3rd embodiment. The schematic diagram showing an example of the full harness type safety belt concerning a 4th embodiment. The side view which shows an example of the elastic member of a thigh belt. The schematic rear view which shows the full harness type safety belt which concerns on H type modification. The schematic rear view which shows the full harness type safety belt which concerns on another modification. FIG. 3 is a schematic sectional view showing a side belt.

[First Embodiment]
[overall structure]
The first embodiment will be described with reference to FIGS. FIG. 1 is a diagram schematically showing an entire configuration of a harness-type safety belt 100. FIG. 1 shows one form of each form of a full harness called a so-called Y-type harness. However, the embodiment of the present invention is not limited to this, and can be applied to various full harnesses such as other Y-type harnesses, X-type, H-type, I-type, and side-cross type harnesses.

  As shown in FIG. 1, the harness type safety belt 100 includes shoulder belts 101A and 101B, thigh belts 102A and 102B, back belt 103, connecting belts 104A and 104B, D ring 107, and upper belt fastener 108. , Lower belt fastener 109, chest belts 112A and 112B, and side belts 130A and 130B.

  The shoulder belt 101A is a belt-shaped belt having a predetermined length. One end is connected to a thigh belt 102A (described later), and the other end is formed integrally with the back belt 103. The back belt 103 formed integrally with the shoulder belt 101A extends downward from a boundary portion with the shoulder belt 101A, and is formed integrally with the connecting belt 104B. Note that, in the description of the harness type safety belt 100, the shoulder belt 101A, the back belt 103, and the connecting belt 104B are distinguished by different reference numerals for the sake of convenience of description. That is, it is not intended to manufacture them individually and to connect them integrally. However, it is also possible to adopt a configuration in which each is individually manufactured and connected using an arbitrary connection means. The total length of the shoulder belt 101A, the back belt 103, and the connecting belt 104B is the length from the upper surface of the shoulder to the center of the thigh, the thickness of the shoulder, and the length from the lower end of the neck to the center of the buttocks. The length is set for each physique of the user in consideration of the length from the center of the buttocks to the center of the thigh.

  The thigh belt 102A is a belt-shaped belt having a predetermined length (for example, a length slightly longer than the length around the user's thigh). As shown in FIG. 1, a part (for example, an end) of the connecting belt 104A is fixed to a predetermined position on the thigh belt 102A. This fixing is performed by, for example, suturing or bonding. In addition, this fixed part is illustrated as the connection part 123A in FIG. At both ends of the thigh belt 102A, a first buckle 124A and a second buckle 125A are provided, respectively, and these are connected to each other so that the thigh belt 102A wound around the user's thigh and the user's large size. A holding state with the thigh is formed. The first buckle 124A and the second buckle 125A are not limited to the embodiment shown in FIG. 1, but may take other forms. In the thigh belt 102A, an end of the shoulder belt 101A is connected and fixed at a position closer to the connection portion 123A than the second buckle 125A. As for this fixing, for example, suturing or bonding may be used. In addition, as shown in FIGS. 2 to 4, the end of the connecting belt 104 (104A, 104B) may be formed in a ring shape, and the thigh belt 102 (102A, 102B) may be passed through the ring. At this time, a movable fastener FA may be provided on both sides of the thigh belt 102 (102A, 102B) adjacent to a portion where the tether belt 102 intersects with the connecting belt 104 (104A, 104B), and the relative positions of the two may be maintained.

  The shoulder belt 101B is a belt-shaped belt having a predetermined length, and one end is connected to a thigh belt 102B (described later), and the other end is formed integrally with another back belt (not shown). The other back belt (not shown) is located on the back side of the back belt 103 in FIG. 1 (the back side on the paper surface of FIG. 1), extends downward from the boundary with the shoulder belt 101B, and is connected to the connection belt 104A. It is formed integrally. In the description of the harness-type safety belt 100, the shoulder belt 101B and the connection belt 104A are distinguished by different reference numerals for the sake of convenience of the description in the same manner as described above. The total length of the shoulder belt 101B, the other back belt (not shown), and the connecting belt 104A is the same as described above.

  Similar to the thigh belt 102A, the thigh belt 102B is a belt-shaped belt having a predetermined length, and a part (for example, an end) of the connecting belt 104B is fixed near the center in the longitudinal direction (see FIG. 4). Connection part 123B). Further, a first buckle 124B and a second buckle 125B are provided at both ends similarly to the thigh belt 102A.

  The shoulder belts 101A and 101B are connected or connected via an upper belt fastener 108. Further, the shoulder belt 101A and the back belt 103 integral therewith, and the shoulder belt 101B and the other back belt (not shown) integral therewith are connected or connected via a lower belt fastener 109. The upper belt fastener 108 and the lower belt fastener 109 are respectively formed with two long holes for belt passing at an interval above and below. The shoulder belts 101A and 101B (hereinafter, “first belt” and “second belt”) are passed through the two long holes of the upper belt fastener 108, respectively. Similarly, the back belt 103 and another back belt (not shown) are passed through the two long holes of the lower belt fastener 109. The boundary between the back belt and the connecting belt, which is conceptually distinguished in the present embodiment, is determined according to the position of the lower belt fastener 109 (for example, the center position of the lower belt fastener 109).

  That is, one belt (hereinafter, sometimes referred to as “first belt”) constituting the shoulder belt 101A, the back belt 103, and the connection belt 104B, and the shoulder belt 101B, another back belt and the connection belt (not shown) It can be said that the harness-type safety belt 100 includes the other belt (hereinafter, sometimes referred to as “second belt”) constituting the belt 104 </ b> A. Since the first belt and the second belt are held at positions corresponding to the upper and lower parts of the back of the user, such as the back belt 103, via the upper belt fastener 108 and the lower belt fastener 109, The relative position between the first belt and the second belt is fixed. As described later, the first belt of the harness type safety belt 100 holds the right body of the user, and the second belt holds the left body of the user.

  In addition, it is good to employ a wide woven fabric formed of flexible fibers for each belt. As the fiber, a polyester fiber or a nylon fiber can be used. Each belt is provided with a length adjuster, and the length can be adjusted by folding and pushing and pulling the belt. Further, the pair of shoulder belts 101A and 101B may be provided with a shoulder pad at a portion that comes into contact with the user's shoulder.

  The harness-type safety belt 100 can be provided with chest belts 112A and 112B that are connected to the user's chest by a pair of shoulder belts 101A and 101B extending downward from both shoulders on the front side of the user. Note that a configuration in which the female 113A and the male 113B of the chest belt buckle are connected to each other can be adopted. The D ring 107 connected to the lanyard may be attached to the upper end of the back belt 103 (for example, at a position between the upper belt fastener 108 and the lower belt fastener 109). In the example of FIG. 1, the D ring 107 is provided below and adjacent to the upper belt fastener 108.

[Side belt]
As shown in FIG. 1, the harness-type safety belt 100 includes a shoulder belt 101A and a back belt 103 integrated therewith, and / or a shoulder belt 101B and the other back belt integrated therewith (not shown). The side belt 130A and the side belt 130B are connected. Hereinafter, an example in which each side belt is connected only to the back belt 103 will be described.

  The side belt 130A is provided on the back side of the user, for example, so as to be orthogonal to the body axis direction (horizontal or the like), and one end is connected to the back belt 103 and the other end is connected to the shoulder belt 101A. In addition, in FIG. 1, it is connected to the same position as the connection position of the chest belt 112A and the shoulder belt 101A, but it is not limited to such a configuration. That is, the side belt 130A may be connected above the connection position of the chest belt 112A and the shoulder belt 101A in the shoulder belt 101A (on the side opposite to the connection belt 102A side).

  The connection position of the side belt 130A with respect to the shoulder belt 101A is any one of positions on the shoulder belt 101A corresponding to a portion below the axilla and up to the lower end of the rib among the sides of the trunk of the wearer. Any location is acceptable. Further, it is possible to select any position in a range from the connection position of the chest belt 112A on the shoulder belt 101A to a position corresponding to the lower side of the axilla in the head-foot direction of the wearer. In the case of this range, the distance between the side belt 130A and the wearer's axilla can be shortened based on the wearer's head and foot direction. When the wearer falls and is suspended, the side belt 130 </ b> A immediately comes into contact with the wearer's axilla.

  The connecting position of the side belt 130A to the back belt 103 is lower than the D ring 107 or the upper belt fastener 108 (the lower belt fastener 109 side) in the back belt 103, and is in the head-foot direction of the wearer. And any one of the positions above the lower belt fastener 109. Further, any position of the back belt 103 in a range from a position that is horizontal to the connection position of the side belt 130A and the shoulder belt 101A to a position corresponding to a position below the axilla in the head-foot direction of the wearer. It is possible to select In the case of this range, the distance between the side belt 130A and the wearer's axilla can be shortened based on the wearer's head and foot direction. When the wearer falls and is suspended, the side belt 130 </ b> A and the wearer's axilla immediately come into contact.

  The side belt 130B may be symmetrical with respect to the side belt 130A and the back belt 103. However, it is not always necessary to be symmetrical. The side belt 130B is specifically as follows.

  The side belt 130B is provided on the back side of the user, for example, so as to be orthogonal (horizontal or the like) to the body axis direction, and one end is connected to the back belt 103 and the other end is connected to the shoulder belt 101B. In FIG. 1, the connection is made at the same position as the connection position between the chest belt 112A and the shoulder belt 101B, but the present invention is not limited to such a configuration. That is, the side belt 130B may be connected to a position above the connection position between the chest belt 112B and the shoulder belt 101B in the shoulder belt 101B (on the side opposite to the side of the connection belt 102B).

  The connection position of the side belt 130B to the shoulder belt 101B may be any one of the positions corresponding to the side below the axilla and up to the lower end of the rib among the sides of the trunk of the wearer in the shoulder belt 101B. Any location is acceptable. Further, it is possible to select any position in a range from the connection position of the chest belt 112B on the shoulder belt 101B to a position corresponding to a position below the axilla in the head and foot direction of the wearer. In this range, the distance between the side belt 130B and the wearer's axilla can be reduced with reference to the wearer's head and foot direction. When the wearer falls and is suspended, the side belt 130B and the wearer's axilla immediately come into contact with each other.

  Further, the connection position of the side belt 130B to the back belt 103 is lower than the D ring 107 or the upper belt fastener 108 (the lower belt fastener 109 side) in the back belt 103, and is in the head-foot direction of the wearer. And any one of the positions above the lower belt fastener 109. Further, any position in a range from a position in the back belt 103 that is horizontal to the connection position of the side belt 130B and the shoulder belt 101B to a position corresponding to a position below the axilla in the head and foot direction of the wearer. It is possible to select In this range, the distance between the side belt 130B and the wearer's axilla can be reduced with reference to the wearer's head and foot direction. When the wearer falls and is suspended, the side belt 130B and the wearer's axilla immediately come into contact with each other.

  The connection between each of the side belts 130A and 130B and each belt takes a firm fixing method without assuming detachment. For example, a fixing method as shown in FIG. Alternatively, the side belt 130A or the like and each belt may be fixed by a metal material such as a rivet.

[Configuration of side belt]
The side belt is made of a material having a low expansion and contraction rate, for example, a non-stretchable member. For example, it is made of the same material as at least one of a back belt, a shoulder belt, a thigh belt, and a chest belt. When the back belt, the shoulder belt, the thigh belt, and the chest belt are all the same, all of them are created in the same manner including the side belt. However, the thickness and width can be set as appropriate.

[Attached state]
The mounting state of the full harness type safety belt will be described with reference to FIG. As shown in FIG. 5, in the full harness type safety belt 100, the shoulder belt 101A is applied to the left shoulder of the wearer, and the back belt 103 integrated with the shoulder belt 101A extends downward via the upper belt fastener 108, It reaches the lower belt fastener 109. Further, the shoulder belt 101B hangs on the right shoulder of the wearer, and a back belt (not shown) integrated with the shoulder belt 101B is provided via the upper belt fastener 108 so as to overlap the back belt 103 in the front-back direction of the wearer. To the lower belt fastener 109.

  Further, the attached full harness type safety belt is such that a pair of connecting belts 104A, which are bifurcated and extend via the lower belt fastener 109, pass through the buttocks of the wearer from the central position on the back of the waist of the wearer, and Is connected to the back side of the thigh belt 102A wound around the left thigh. Similarly, a pair of connecting belts 104B that are bifurcated and extend through the lower belt fastener 109 pass through the buttocks of the wearer from the center position on the back of the wearer's waist and are wound around the right thigh of the wearer. It is connected to the back side of the thigh belt 102B. The connecting belt 104A may be integrated with the shoulder belt 101B and the other back belt (not shown) integrated therewith, or may be separate. Similarly, the connecting belt 104B may be integrated with the shoulder belt 101A and the back belt 103 integrated therewith, or may be separate.

  The D ring 107 or the upper belt fastener 108 is located at substantially the same distance in the horizontal direction from the left and right shoulder blades of the wearer.

[How to install]
The wearer passes the right upper limb between the side belt 130A and the shoulder belt 101A, and passes the left upper limb between the side belt 130B and the shoulder belt 101B. Further, the wearer winds the thigh belt 102A around the left thigh, and connects the first buckle 124A and the second buckle 125A. Similarly, the thigh belt 102B is wound around the right thigh, and the first buckle 124B and the second buckle 125B are connected. Further, the female 113A and the male 113B of the chest buckle are connected. As a result, the combination of the chest belt and the side belt is worn around the wearer's chest by one turn.

[Modification 1]
Modification 1 of the first embodiment described above will be described. In the full-harness-type safety belt 100, the shoulder belt 101A and the side belt 130A are connected, and the shoulder belt 101B and the side belt 130B are connected. However, the present invention is not limited to this, and the side belt 130A and the side belt 130B may be integrally formed as shown in FIG. Alternatively, the side belt 130A and the side belt 130B may be connected directly or indirectly without using a shoulder belt even if they are separate bodies. In the first modification, a series of side belts, both ends of which are fixed to a back belt, are configured to be turned outward from the shoulder belts 101A and 101B.

[Modification 2]
Further, in the first modification, a series of side belts having both ends fixed to the back belt are configured to be turned outward from the shoulder belt 101A and the shoulder belt 101B, but as shown in FIG. It may be turned inward from the shoulder belt 101B. In FIG. 7, the side belt is located closer to the body surface of the wearer than the chest belt, and in FIG. 6, the chest belt is located closer to the body surface of the wearer than the side belt. However, these may be reversed.

[Modification 3]
Modification 3 of the first embodiment described above will be described. In the above-described full harness type safety belt 100, the side belt is connected to the back belt. However, the present invention is not limited to this, and it may be connected to the D ring 107. For example, the end of the side belt may be folded back through the D ring 107 and sewn back. The same applies to Modification 1 or Modification 2.

  Since the harness-type safety belt according to the first embodiment is provided with the side belt, even if the wearer falls and is suspended, the upper limb and the head may fall off from the full harness-type safety belt. It is possible to prevent.

[Second embodiment]
A second embodiment will be described with reference to FIG. FIG. 8 is a diagram schematically showing the entire configuration of the harness type safety belt 200. As shown in FIG. FIG. 8 shows an embodiment of the Y-type harness. The basic configuration of the harness-type safety belt 100 in the second embodiment is the same as the basic configuration of the harness-type safety belt 100 in the first embodiment. Therefore, the description of the basic configuration of the harness type safety belt 100 may be omitted. The shoulder belts 101A and 101B, the thigh belts 102A and 102B, the back belt 103, the connecting belts 104A and 104B, the D ring 107, the upper belt fastener 108, and the lower belt fastener 109 in the harness type safety belt 100 , Chest belts 112A and 112B, the role of each part, and each arrangement are the same.

  In the full harness type safety belt 100 of the first embodiment, the side belt 130A and the side belt 130B are respectively connected to the back belt. However, in the second embodiment, the side belt 130A and the side belt 130B may be integrally formed as shown in FIG. Alternatively, the side belt 130A and the side belt 130B may be directly or indirectly connected to each other without using the back belt even if they are separate bodies. In the second embodiment, one end of a series of side belts is connected to the shoulder belt 101A, and the other end is connected to the shoulder belt 101B.

  Further, in the second embodiment, as shown in FIG. 8, the connection position of the chest belt 112A and the shoulder belt 101A and the connection position of the side belt 130 are not the same position, but are shifted in the head-foot direction of the wearer. Becomes Similarly, the connection position between the chest belt 112B and the shoulder belt 101B and the connection position between the side belts 130 are not the same position but are shifted in the direction of the wearer's head and feet. However, in the second embodiment, it does not prevent at least one of them from being at the same position.

  Since the harness type safety belt according to the second embodiment is provided with the side belt, even if the wearer falls and is suspended, the upper limb and the head may fall off the full harness type safety belt. It is possible to prevent.

[Third embodiment]
A third embodiment will be described with reference to FIG. FIG. 9 is a diagram schematically showing an overall configuration of a harness type safety belt 300X. As shown in FIG. 9, the harness type safety belt 300X includes shoulder belts 301AX, 301BX, thigh belts 302AX, 302BX, back belts 3031X, back belts 3032X, connecting belts 304AX, 304BX, a D ring, and an upper belt. A fastener 308X, lower belt fasteners 3091X and 3092X, and chest belts 312AX and 312BX are provided. In the harness type safety belt 300X, the common feature of the above embodiment is that the shoulder belt 301AX is a single belt integrally formed with the back belt 3031X and the connection belt 304BX, and similarly, the shoulder belt 301BX is used as the back belt 3021X. , And another belt integrally formed with the connection belt 304AX.

  The difference is that in the above embodiment, the back belts overlap each other in the front-rear direction of the user. However, in the X-type modification, the back belts are left and right (based on the left-right direction of the user) via the upper belt fastener 308X. ). In addition, a connection belt is provided to connect the two back belts so as to be bridged therebetween. This is provided slightly below the upper belt fastener 308X (based on the direction of the user's head and feet) and substantially at the rear side of the user's chest.

  The relative positions of the shoulder belt 301AX and the back belt 3031X are held by a lower belt fastener 3091X. This lower belt fastener 3091X is provided at a position corresponding to a position adjacent to the right side of the user's waist or above or below the user, unlike the above embodiment. Similarly, the relative positions of the shoulder belt 301BX and the back belt 3032X are held by the lower belt fastener 3092X. The lower belt fastener 3092X is provided at a position corresponding to a position adjacent to the left side of the user's waist or above or below it.

  Similarly to the above embodiment, the third embodiment also includes side belts 330A and 330B. Also in this embodiment, it is possible to change the configuration as in Modifications 1 to 3 of the first embodiment and the second embodiment.

  Further, in the present X-type modification, the connecting belts 304AX and 304BX of the harness type safety belt 300X are provided with telescopic members 340AX and 340BX which can expand and contract, respectively. Also, in the harness type safety belt 300X, the thigh belts 302AX, 302BX are provided with telescopic members 320AX, 320BX which can be extended and contracted. The configuration, arrangement position, and the like of these elastic members are the same as those in the above-described embodiment. Therefore, each additional embodiment and modification can be applied to this X-type modification. Note that the X-type modification includes a shape in which the thigh belt as shown in FIG. 10 is inclined upward toward the side (a position corresponding to the iliac side of the user).

  Since the harness-type safety belt according to the third embodiment is provided with the side belt, even if the wearer falls and is suspended, the upper limb and the head may fall off from the full harness-type safety belt. It is possible to prevent.

[Fourth embodiment]
A fourth embodiment will be described with reference to FIG. FIG. 11 is a diagram schematically illustrating an entire configuration of the harness-type safety belt 200. As shown in FIG. 11, stretchable members 220A and 220B are provided on the back side of the thigh belts 202A and 202B of the harness type safety belt 200, respectively. The harness-type safety belt 200 may be provided with a similar elastic member at a position corresponding to the buttocks of the wearer, for example, at one or both of the connection belts 204A and 204B.

  As shown in FIG. 12, each of the elastic members 220A and 220B includes a bellows portion 141 of a thigh and binding portions 142 and 142, respectively. FIG. 12 is a schematic side view illustrating an example of the elastic member 140 according to the embodiment. The elastic member 140 has a bellows portion 141 provided so as to be sandwiched between the binding portions 142 and has a bellows structure, and expands and contracts in the length direction.

  Further, the bellows portion 141 is formed by knitting a non-stretchable yarn and a stretchable yarn, and further forming a belt-like body by knitting a weft yarn while using these as warp yarns. Specifically, a plurality of bellows-like stretchable yarns are arranged, and a non-stretchable yarn is woven between them. The stretchable yarn on one side of the non-stretchable yarn and the stretchable yarn on the other side are arranged such that the bellows-shaped peaks and valleys are alternately displaced in the length direction and waved alternately by the weft. Non-stretchable and fixed. In other words, the position where the non-stretchable yarn is in contact with (or approaches) the valley end of the one-side stretchable yarn is apart from the valley end of the other-side stretchable yarn, and is in contact with (or approaches) the ridge end of the other-side stretchable yarn. Is separated from the ridge end of the elastic yarn on one side. As described above, since the alternately contacting positions are alternately arranged at intervals, the non-stretchable yarn is configured to bear the stretch limit of the stretchable yarn.

  As the non-stretchable yarn, a yarn having a strong tensile force may be selected in addition to nylon. The elastic yarn may be made of elastic synthetic resin or natural rubber in addition to stretch nylon. The weft of the belt-shaped body may be knitted at a position corresponding to the valley end of one stretchable yarn and the crest end of the other stretchable yarn in contact with the non-stretchable yarn. By providing the elastic member, it is possible to suppress a situation in which the thigh belt bites into the thigh and causes discomfort when the user twists the body left or right or squats. Also, in the fourth embodiment, side belts 230A and 230B are provided similarly to the above embodiment. Also in this embodiment, it is possible to change the configuration as in Modifications 1 to 3 of the first embodiment and the second embodiment.

  Since the harness-type safety belt according to the fourth embodiment is provided with the side belt, even if the wearer falls and is suspended, the upper limb and the head may fall off from the full harness-type safety belt. It is possible to prevent. It is also possible to effectively prevent a situation in which the elastic member falls off.

[H-type modification]
FIG. 13 is a schematic rear view showing the harness according to the H-type modification. As shown in FIG. 13, the harness type safety belt 300H includes shoulder belts 301AH and 301BH, thigh belts 302AH and 302BH, back belt 3031H, back belt 3032H, D ring 307H, upper belt fastener 308H, and chest belt. The belt includes belts 312AH and 312BH and side belts 330A and 330B. The harness-type safety belt 300H has a lot in common with the X-type harness-type safety belt 300X. For example, the shoulder belt 301AH is one belt integrally formed with the back belt 3031H and the connection belt 304BH. Similarly, the shoulder belt 301BH is another belt integrally formed with the back belt 3021H and the connection belt 304AH. It is a belt of a book.

  Similarly to the X-type harness-type safety belt 300X, in the H-type modified example as well, it is branched right and left (based on the left-right direction of the user) via the upper belt fastener 308H. Further, a common point is that a connection belt is provided to tie the two back belts so as to be stretched. However, unlike the X-type harness-type safety belt 300X, the back belt and the shoulder belt do not intersect, and the lower belt fastener like the X-type harness-type safety belt 300X is provided because the branch angle of the back belt is small. I can't. Also, in the above embodiment, the distinction between the connection belt and the back belt was conceptual, but in the H-type harness-type safety belt 300H, the back belt is directly connected to the thigh belt. Not defined.

  In the present H-type modification, a stretchable member that can be extended and retracted is provided at a position of the harness-type safety belt 300H from the buttocks to the thighs of the user on the back belt (a position corresponding to the connection belt of the other example). 340AH and 340BH are provided. In the harness-type safety belt 300H, the thigh belts 302AH and 302BH are provided with telescopic members 320AH and 320BH that can expand and contract. The configuration, arrangement position, and the like of these elastic members are the same as the configuration of the fourth embodiment. Further, each embodiment and the modified example can be applied to this H-shaped modified example.

  In the Y-type harness, it is also possible to adopt a configuration in which the back belt and the shoulder belt are reversed in the front-rear direction.

[Other Modifications]
FIG. 14 is a rear view showing an outline of a harness according to another modification. As shown in FIG. 14, the harness type safety belt 300αΑ includes shoulder belts 301Aα, 301Bα, thigh belts 302Aα, 302Bα, back belt 303α, connecting belts 304Aα, 304Bα, D ring 307α, and upper belt fastener 308α. , Chest belts 312Aα, 312Bα, elastic members 340Aα, 340Bα, 320Aα, 320Bα, and side belts 330A, 330B. The harness-type safety belt 300α is significantly different from the above-described embodiment in that a part of the lower side of each of the shoulder belts 301Aα and 301Bα is connected to a part of the corresponding connecting belt 304Aα and 304Bα. . While the connecting belts 304Aα and 304Bα are integrally formed, they are not integrated with the back belt 303α but are separated, and are connected at the lower end of the back belt 303α. The other components have the same functions and arrangements.

  Further, in the above embodiment, only the right side belt or only the left side belt may be provided. A chest belt may be provided in the horizontal direction on the front side of the wearer, and a horizontal belt for preventing falling off (preventing falling off) may be separately provided. Further, the side belt may not be horizontal and may be inclined with respect to the horizontal direction.

  The side belt may be provided with a buffer at least at a portion on the axillary side of the wearer, or at least a portion on the axillary side of the wearer may face the axilla in the thickness direction as shown in FIG. It may be a planar portion.

  Since the harness type safety belt according to each of the above embodiments of the present application has the side belt, even if the wearer falls and is suspended, the upper limb and the head drop off from the full harness type safety belt. It is possible to prevent that. It is also possible to effectively prevent a situation in which the elastic member falls off.

100 Harness type safety belt 130, 230, 330 Side belt 103 Back belt 101 Shoulder belt

Claims (23)

A shoulder belt passing through the shoulder of the wearer and extending downward on the front side of the wearer,
A back belt integrally formed with or connected to the shoulder belt, and extending downward on the back side of the wearer;
A thigh belt passing through at least a part of the thigh of the wearer,
A D ring provided on a portion located on the back side of the wearer,
At least one of the back belt or the D ring and the shoulder belt is connected to at least one of the side portions of the trunk of the wearer, between the axilla and the lower end of the ribs, the body axis of the wearer. A full harness type safety belt including a side belt passed in a direction crossing the direction. The safety harness according to claim 1, wherein one end of the side belt is connected to the shoulder belt. The shoulder belt has a right shoulder belt passing through the right shoulder of the wearer and a left shoulder belt passing through the left shoulder of the wearer,
The safety belt according to claim 2, wherein the side belt is connected to both the right shoulder belt and the left shoulder belt. The side belt is characterized in that one end is connected to the right shoulder belt, the right side in the trunk of the wearer, the rear of the trunk, and the left side, and the other end is connected to the left shoulder belt. The full harness type safety belt according to claim 3. The full harness type safety belt according to claim 1, wherein the side belt is connected to the back belt. The back belt has a right back belt passing the wearer's back right side, and a left back belt passing the wearer's back left side,
The full harness type safety belt according to claim 5, wherein the side belt is connected to both the right back belt and the left back belt. The side belt is characterized in that one end is connected to the right back belt, the right side in the wearer's trunk, the front of the trunk, and the left side, and the other end is connected to the left back belt. The full harness type safety belt according to claim 3. The back belt passes through a belt passing member provided in the vicinity of the D ring or in a position overlapping the D ring and the wearer in the front-rear direction, and is configured to extend downward on the back center side of the trunk,
The full harness type safety belt according to claim 5, wherein the side belt is connected to a position below the belt passing member of the back belt. 10. The side belt according to any one of claims 5 to 9, wherein one end of the side belt is connected to the back belt, and the other end of the side belt is connected to the shoulder belt. 2. The full harness type safety belt according to item 1. The back belt has a right back belt passing the wearer's back right side, and a left back belt passing the wearer's back left side,
The shoulder belt has a right shoulder belt passing through the right shoulder of the wearer and a left shoulder belt passing through the left shoulder of the wearer,
The side belt has a right side belt and a left side belt,
The right side belt has one end connected to the right shoulder belt and the other end connected to the right back belt,
The safety harness according to claim 5, wherein the left side belt has one end connected to the left shoulder belt and the other end connected to the left back belt. The shoulder belt has a right shoulder belt passing through the right shoulder of the wearer and a left shoulder belt passing through the left shoulder of the wearer,
The side belt has a right side belt and a left side belt,
The right side belt has one end connected to the right shoulder belt,
9. The safety harness according to claim 8, wherein one end of the left belt is connected to the left shoulder belt. The safety harness according to claim 1, wherein one end of the side belt is connected to the D ring. One end of the side belt is connected to the D ring, and passes through the right side, the front, and the left side of the trunk of the wearer, and the other end is also connected to the D ring. The full harness type safety belt according to claim 12. The shoulder belt has a right shoulder belt passing through the right shoulder of the wearer and a left shoulder belt passing through the left shoulder of the wearer,
The side belt has a right side belt and a left side belt,
The right side belt has one end connected to the D ring and the other end connected to the right shoulder belt,
The full harness type safety belt according to claim 12, wherein the left side belt has one end connected to the D ring and the other end connected to the left shoulder belt.   The full harness type safety belt according to any one of claims 1 to 14, wherein the side belt is made of a non-stretchable member.   The full harness type safety belt according to any one of claims 1 to 14, wherein the side belt is made of a material having a low elasticity.   The full harness type according to any one of claims 1 to 14, wherein the side belt is made of the same material as any one of the back belt, the shoulder belt, and the thigh belt. Safety belt.   The full harness type safety belt according to any one of claims 1 to 17, wherein the side belt is provided with a buffer portion on at least a part of an axilla side of a wearer.   18. The side belt according to any one of claims 1 to 17, wherein at least a part of the side belt on the axillary side of the wearer in the thickness direction is a planar portion facing the axilla. Full harness type safety belt.   The full harness type safety belt according to any one of claims 1 to 19, wherein the connection of the side belts is performed by non-removable fixing.   The full harness type safety belt according to claim 21, wherein the side belt is fixed by sewing.   23. The telescopic member according to claim 1, wherein an elastic member is provided on at least one of the thigh belt and the back belt that passes through the buttocks of the wearer. Harness type safety belt. A lower end of the back belt and the thigh belt are connected, and a connecting belt that passes through the buttocks of the wearer is provided,
The harness-type safety belt according to any one of claims 1 to 22, wherein a stretchable member is provided on at least one of the thigh belt and the connection.

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