Full body harness for fall protection

Abstract

To provide a full-body harness for fall protection that can be easily switched between a waist belt type and a full-body harness type without removing the waist belt. [Solution] The full harness 1A of the fall arrest equipment comprises an upper body portion 2 with two shoulder straps 5, a lower body portion 3 with two thigh straps 6, and a plurality of connecting belts 4 that connect the upper body portion 2 and the lower body portion 3. The connecting belts 4 have a narrowed portion 4c between the attachment end 4a on the upper body portion side and the attachment end 4b on the lower body portion side.

Description

Technical Field

[0001] The present invention relates to a full harness for a fall arrest device.

Background Art

[0002] Conventionally, a fall arrest device has been called a safety belt. There are two types of such fall arrest devices: a torso belt type and a full harness type. The torso belt type includes a torso belt that can be attached to the operator's torso, and a lanyard is attached to the torso belt. The full harness type includes a full harness in which an upper body part having two shoulder belts and a lower body part having two leg belts are integrally connected, and a lanyard is attached to the upper body part (generally, the back) of the full harness (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The torso belt type and the full harness type are properly used according to the height of the work floor. Specifically, the torso belt type is used for low-altitude work, and the full harness type is used for high-altitude work. If the full harness is worn over the torso belt, the torso belt type and the full harness type can be properly used only by attaching and detaching the full harness.

[0005] On the other hand, it is common for work supplies such as a measuring tape to be worn around the operator's waist in combination with the torso belt.

[0006] However, if a full-body harness is worn over a waist belt, the harness may interfere with work equipment placed around the waist belt. If work equipment interferes with the harness, for example, it may become difficult to easily retrieve tools from the waist belt, raising concerns that work efficiency during on-site work may be impaired.

[0007] Therefore, when working at heights, the waist belt that is already being worn can be temporarily removed from the body, the full harness can be put on, and then the waist belt can be put on again over the full harness, so that the waist belt is positioned outside the full harness. This prevents work equipment from interfering with the full harness even when it is being worn. Also, when working at low heights, the full harness can be removed from the body by temporarily removing the waist belt that is being worn over the full harness. After removing the full harness from the body, the waist belt can be put on again, so that work equipment does not interfere with the full harness.

[0008] However, the conventional method of switching between a waist belt and a full harness, as described above, always requires the removal of the waist belt. Therefore, when using conventional fall protection equipment such as full harnesses, a complicated switching procedure was required to switch between the waist belt type and the full harness type.

[0009] The objective of the present invention is to provide a full-body harness for fall protection that can be easily switched between a waist belt type and a full-body harness type without removing the waist belt. [Means for solving the problem]

[0010] (1) The full harness for fall protection equipment according to the present invention comprises an upper body portion with two shoulder straps, a lower body portion with two thigh straps, and a plurality of connecting belts connecting the upper body portion and the lower body portion, wherein the connecting belts have a narrow portion between the attachment end on the upper body portion side and the attachment end on the lower body portion side.

[0011] (2) In the full harness of the fall arrest equipment described in (1) above, it is preferable that the plurality of connecting belts are two connecting belts that are spaced apart in the left-right direction.

[0012] (3) In the full-body harness for fall protection described in (1) or (2) above, it is preferable that the two connecting belts are positioned between the upper body portion and the lower body portion such that the narrow portion is positioned on the side of the body when the full-body harness is worn on the body.

[0013] (4) Any one of the above (1) to (3) may be a flat portion that is positioned on the full harness so as to protrude in the diameter direction of the torso when the full harness is worn on the body.

[0014] (5) In any one of the full-body harnesses for fall protection described in (1) to (4) above, the narrow portion is preferably a portion formed by bending the base material of the connecting belt or a portion formed by twisting the base material of the connecting belt.

[0015] (6) In any one of the fall protection equipment full harnesses described in (1) to (5) above, the shoulder belt is provided with a ring that passes through the shoulder belt and an adjustment buckle, the adjustment buckle is provided with an annular frame and a shaft that is stretched across the inside of the frame and forms two openings between itself and the frame, the end of the rear overlapping portion of the shoulder belt that passes through the ring is attached to the shaft, and it is preferable that the front overlapping portion of the shoulder belt that passes through the ring passes through the two openings such that it is positioned in front of the rear overlapping portion of the shoulder belt.

[0016] (7) In the full harness of the fall arrest equipment described in (6) above, the shoulder belt is provided with a stopper to fix the length of the shoulder belt, and it is preferable that the stopper slides through the overlapping portion of the belt where the front overlapping portion of the shoulder belt and the rear overlapping portion of the shoulder belt overlap, and elastically holds the overlapping portion of the belt.

[0017] (8) In any one of the full-body harnesses for fall protection described in (1) to (7) above, the upper body portion further comprises a chest belt connecting the two shoulder belts, the chest belt is equipped with a slide buckle that is movable in the extending direction of the shoulder belts, and the slide buckle is equipped with a positioning means that is positioned in the extending direction of the shoulder belts.

[0018] (9) In the full harness of the fall arrest equipment described in (8) above, it is preferable that the slide buckle is equipped with a hanger capable of securing the hook of the lanyard. [Effects of the Invention]

[0019] According to the present invention, it is possible to provide a full-body harness type fall protection device that can be easily switched between a body belt type and a full-body harness type without removing the body belt. [Brief explanation of the drawing]

[0020] [Figure 1] This is a schematic rear view showing a full harness for fall protection equipment, according to the first embodiment of the present invention, from the rear. [Figure 2] This is a schematic rear view showing the padded full harness with the pads attached, as shown in Figure 1. [Figure 3] Figure 2 is a front view showing the padded full harness as it is worn by the user. [Figure 4] Figure 2 is a rear view showing the padded full harness as it is worn by the user. [Figure 5] FIG. 2 is a side view showing a state in which the full harness with pads in FIG. 2 is worn by a user from the side. [Figure 6] FIG. 5 is a perspective view schematically showing an example of wearing of the body belt type fall arrest device. [Figure 7] FIG. 8 is a schematic view for explaining an example of a method of adjusting the length of the shoulder belt in the full harness of FIG. 1. [Figure 8] FIG. 11 is a rear view schematically showing the full harness of the fall arrest device according to the second embodiment of the present invention from the rear side. [Figure 9] FIG. 14 is a rear view schematically showing the padded full harness to which the pad attached to the full harness of FIG. 8 is attached from the rear side. BEST MODE FOR CARRYING OUT THE INVENTION

[0021] Hereinafter, referring to the drawings, the full harness 1A of the fall arrest device according to some embodiments of the present invention will be described.

[0022] In the following description, the front side, the rear side, the left side, the right side, the upper side and the lower side may be defined based on the state in which the user wears the full harness 1A. However, these definitions are for convenience in order to facilitate the description.

[0023] The fall arrest device (also referred to as a "safety belt") is, for example, a device used when working at a high work floor such as a construction site. The fall arrest device is composed of a lanyard 30 (see FIG. 6) as a lifeline for supporting the user in case the user accidentally falls from the work floor, and a wearing body that the user wears to disperse the impact load at the time of falling.

[0024] The user-side hook of the lanyard is attached to the wearing body, and the structure-side hook of the lanyard is attached to a structure (fixed object). Thereby, the wearing body can be attached to the structure via the lanyard.

[0025] Fall protection equipment is divided into a waist belt worn around the user's waist and a full harness worn around the user's shoulders and thighs. According to the Industrial Safety and Health Enforcement Order, for work at a height of 2m to less than 6.75m from the ground to the work platform (hereinafter also referred to as "low-altitude work"), it is mandatory to use a waist belt type fall protection device, and for work at a height of 6.75m or more from the ground to the work platform, it is mandatory to use a full harness type fall protection device.

[0026] Figure 1 schematically shows a full harness 1A of a fall arrest device according to the first embodiment of the present invention, viewed from the rear side.

[0027] The full harness 1A comprises an upper body section 2 with two shoulder straps 5, a lower body section 3 with two thigh straps 6, and a plurality of connecting straps 4 that connect the upper body section 2 and the lower body section 3.

[0028] The upper body section 2 is equipped with two shoulder straps 5: a left shoulder strap 51 that is worn over the user's left shoulder when the user is wearing the full harness 1A, and a right shoulder strap 52 that is worn over the user's right shoulder. The two shoulder straps 5 are crossed at the rear (back). A back buckle 7 is attached to the crossing point of the two shoulder straps 5 to maintain the crossing point.

[0029] The rear buckle 7 can be slid along the shoulder straps 5 to change the position of the intersection of the shoulder straps 5. Furthermore, in this embodiment, the rear buckle 7 is equipped with a lanyard attachment 7a for attaching the user-side hook of a lanyard. An example of the lanyard attachment 7a is a D-ring that is pivotably held relative to the rear buckle 7.

[0030] Furthermore, in this embodiment, the shoulder strap 5 includes a ring 8 through which the shoulder strap 5 passes, and an adjustment buckle 9, which will be described later, for adjusting the length of the shoulder strap 5. Furthermore, in this embodiment, the shoulder strap 5 includes a stopper 10 for fixing the length of the shoulder strap 5.

[0031] In this embodiment, the upper body portion 2 is equipped with two rings 8: a left ring 8A positioned on the left side of the user when the user is wearing the full harness 1A, and a right ring 8B positioned on the right side of the user. In this embodiment, the left shoulder belt 51 passes through the left ring 8A such that one end 51a of the left shoulder belt 51 is folded back. In addition, in this embodiment, the other end 52b of the right shoulder belt 52 is pivotably attached to the left ring 8A. Similarly, in this embodiment, the right shoulder belt 52 passes through the right ring 8B such that one end 52a of the right shoulder belt 52 is folded back. In addition, in this embodiment, the other end 51b of the left shoulder belt 51 is pivotably attached to the right ring 8B. In other words, in this embodiment, the rings 8 pass through one of the two shoulder belts 5 such that one end 5a of the shoulder belt 5 is folded back, and the other end 5b of the other shoulder belt 5 is pivotably attached to the rings 8.

[0032] Furthermore, in this embodiment, the upper body portion 2 is equipped with two adjustment buckles 9: a left-side adjustment buckle 9 located on the left side of the user when the user is wearing the full harness 1A, and a right-side adjustment buckle 9 located on the right side of the user. In this embodiment, one end 51a of the left shoulder belt 51 is attached to the left-side adjustment buckle 9. Similarly, in this embodiment, one end 52a of the right shoulder belt 52 is attached to the right-side adjustment buckle 9.

[0033] In other words, in this embodiment, the upper body portion 2 of the full harness 1A is equipped with two shoulder straps 5, a back buckle 7, two rings 8, and two adjustment buckles 9. This allows the user to wear the upper body portion 2 of the full harness 1A on their upper body with the two shoulder straps 5 worn across their shoulders.

[0034] In addition, in this embodiment, the upper body portion 2 is equipped with a chest belt 11 that connects the two shoulder belts 5. In this embodiment, the chest belt 11 consists of two chest belts 11: a left chest belt 11A that is positioned on the left side of the user when the user is wearing the full harness 1A, and a right chest belt 11B that is positioned on the right side of the user. In this embodiment, the chest belt 11 is attached to the shoulder belts 5 by a slide buckle 23, which will be described later.

[0035] Furthermore, in this embodiment, the chest belt 11 is equipped with a chest buckle 12 that detachably connects the two shoulder belts 5. In this embodiment, the chest buckle 12 is composed of an operating buckle 12A and an insertion buckle 12B. The chest buckle 12 is fixed by inserting the insertion buckle 12B into the operating buckle 12A. The chest buckle 12 can also be released from its fixed position by operating the operating buckle 12A. In this embodiment, the operating buckle 12A is attached to the left chest belt 11A. Also, in this embodiment, the insertion buckle is attached to the right chest belt 11B. However, the mounting positions of the operating buckle 12A and the insertion buckle 12B can be reversed from those in this embodiment.

[0036] The lower body portion 3 includes two thigh belts 6: a left thigh belt 6A that can be attached to the user's left thigh when the user is wearing the full harness 1A, and a right thigh belt 6B that can be attached to the user's right thigh. In this embodiment, the thigh belts 6 are equipped with a thigh buckle 13 that makes the thigh belts 6 removable. In this embodiment, the thigh buckle 13 is also composed of an operating buckle 13A and an insertion buckle 13B. The thigh buckle 13 is also fixed by inserting the insertion buckle 13B into the operating buckle 13A. Furthermore, the thigh buckle 13 can be released from the fixing of the insertion buckle 13B and the operating buckle 13A by operating the operating buckle 13A. However, the mounting positions of the operating buckle 13A and the insertion buckle 13B can be reversed from those in this embodiment.

[0037] Furthermore, in this embodiment, the thigh belt 6 is equipped with an adjustment buckle 9 for adjusting the length of the thigh belt 6. Furthermore, in this embodiment, the thigh belt 6 is equipped with a stopper 10 for fixing the length of the thigh belt 6. In addition, in this embodiment, the lower body portion 3 is equipped with a pelvic belt 14 that connects the two thigh belts 6. The pelvic belt 14 stabilizes the user's waist when wearing the full harness 1A.

[0038] The connecting belt 4 has a narrowed portion 4c between the upper body attachment end 4a and the lower body attachment end 4b of the connecting belt 4.

[0039] In this embodiment, the narrow portion 4c is an intermediate portion located between the upper body attachment end 4a and the lower body attachment end 4b of the connecting belt 4. In this embodiment, the upper body attachment end 4a of the connecting belt 4 is pivotably attached to the ring 8. In this embodiment, the lower body attachment end 4b of the connecting belt 4 is fixed to the thigh belt 6. However, the connecting belt 4 can be configured so that its length in the vertical direction can be adjusted. Furthermore, the lower body attachment end 4b of the connecting belt 4 may be slid along the thigh belt 6 to adjust the position of the connecting belt 4 relative to the thigh belt 6. Specific examples of adjustment means include hooks or carabiners and eyelets, hook-and-loop fasteners, buttons, snaps, magnets, clip components, loops, and adjusters.

[0040] Referring to Figure 1, the belt width Dc of the narrow portion 4c is narrower than the belt width Da of the upper body attachment end 4a and the belt width Db of the lower body attachment end 4b. In other words, with full harness 1A, the free space around the narrow portion 4c of the connecting belt 4 is wider than in the case of conventional full harnesses that have connecting belts of the same belt width. Therefore, with full harness 1A, when the full harness 1A is worn over the waist belt 20 (see, for example, Figure 5), interference between the work equipment 22 attached to the waist belt 20 and the connecting belt 4 can be suppressed compared to conventional full harnesses in which the connecting belts 4 are of the same belt width.

[0041] As shown in Figure 1, in this embodiment, the belt width Da of the upper body attachment end 4a and the belt width Db of the lower body attachment end 4b of the connecting belt 4 are the same as the belt width D5 of the shoulder belt 5. Also, in this embodiment, the length (vertical length) of the narrow portion 4c of the connecting belt 4 is set to be greater than or equal to the vertical width of the waist belt 20. Furthermore, it is preferable to adjust the position of the connecting belt 4 between the upper body portion 2 and the lower body portion 3 so that when the user puts on the full harness 1A, the upper end of the narrow portion 4c of the connecting belt 4 is positioned around the upper end of the hip bone (ilium).

[0042] The full harness 1A is equipped with two connecting belts 4 that are spaced apart in the left-right direction. Specifically, the full harness 1A is equipped with two connecting belts 4: a left connecting belt 4A that is positioned on the left side of the user when the user is wearing it, and a right connecting belt 4B that is positioned on the right side of the user.

[0043] Figure 2 schematically shows a padded full harness 1A with the attached pads from the full harness 1A, viewed from the rear. In this embodiment, protective pads can be attached to the full harness 1A as shown in Figure 2. The padded full harness 1A in Figure 2 includes shoulder pads 15 to protect the user's shoulders and back, and thigh pads 16 to protect the user's thighs. In this embodiment, the shoulder pads 15 and thigh pads 16 are detachable from the full harness 1A, for example, by snap buttons.

[0044] Figure 3 shows the user wearing the padded full harness 1A, viewed from the front. As shown in Figure 3, the user is wearing the waist belt 20 above their waist. In this embodiment, the waist belt 20 is directly attached to the user's body. In Figure 3, the full harness 1A is worn over the waist belt 20.

[0045] As shown in Figure 3, even when the full harness 1A is attached over the waist belt 20, the full harness 1A has a narrow section 4c in the connecting belt 4, so a large free space is secured on the front side of the user's torso. In other words, even if work equipment is attached to the front side of the waist belt 20, the full harness 1A will have minimal interference with the work equipment. Here, work equipment includes, for example, tools such as measuring tapes, power tools, and screwdrivers, as well as tool pouches, tool holders, etc., for storing such tools.

[0046] Furthermore, in the example in Figure 4, work supplies 22 are attached to the rear of the waist belt 20, which is worn under the full harness 1A. In the example in Figure 4, tools 22b are housed in a tool holder 22a attached to the waist belt 20. In the example in Figure 4, the tool holder 22a can be left outside the full harness 1A through the free space formed between the two connecting belts 4. This allows tools 22b to be easily taken in and out of the tool holder 22a.

[0047] As shown in Figure 4, even when the full harness 1A is attached over the waist belt 20, the full harness 1A has a narrow section 4c in the connecting belt 4, so a wide free space is secured on the rear side of the user's torso. Therefore, as shown in Figure 4, even when work equipment 22 is attached to the rear side of the waist belt 20 of the full harness 1A, there is less interference with the work equipment 22.

[0048] Furthermore, Figure 5 shows a side view of a user wearing a padded full harness 1A. In the example in Figure 5, multiple work accessories 22 are attached to the front and rear sides of the waist belt 20 worn below the full harness 1A. As shown in Figure 5, the connecting belt 4 has a narrow section 4c, so even if multiple work accessories 22 are placed around the connecting belt 4 as shown in Figure 5, interference with the work accessories 22 is minimized. Reference numeral 22c denotes a tool pouch 22c.

[0049] The full harness 1A has a narrow section 4c between the upper body attachment end 4a and the lower body attachment end 4b of the connecting belt 4. This creates a free space between the narrow section 4c of the connecting belt 4 around the user's waist, making it difficult for work equipment 22 attached to the waist belt 20 to interfere. Therefore, as described above, even when the full harness 1A is worn over the waist belt 20 that the user is directly wearing, it is less likely to interfere with the work equipment 22 attached to the waist belt 20. In other words, with the full harness 1A, even when worn over the waist belt 20 to which work equipment 22 is attached, the work equipment 22 can be handled from over the full harness 1A. To put it another way, with the full harness 1A, even when worn over the waist belt 20 to which work equipment 22 is attached, the full harness 1A can be removed from over the waist belt 20 while still wearing the waist belt 20 and the work equipment 22. Therefore, with full harness 1A, it is possible to easily switch between a waist belt type and a full harness type without removing the waist belt 20.

[0050] Figure 6 shows an example of a body belt type fall protection device that can be worn under a full harness 1A. The body belt 20 of the fall protection device is worn around the user's waist. In this example, a lanyard attachment 21 is attached to the body belt 20 together with a buckle 25. In this example, the lanyard attachment 21 is located on the left front side of the waist. For example, an A-ring can be used as the lanyard attachment 21. The user-side hook 31 of the lanyard 30 is attached to the lanyard attachment 21 on the body belt 20, and the structure-side hook of the lanyard 30 is attached to a structure (fixed object: not shown). In this way, the body belt 20 can be attached to the structure via the lanyard 30.

[0051] Furthermore, the full harness 1A is equipped with two connecting belts 4. In this embodiment, the two connecting belts 4 are spaced apart in the left-right direction. In this case, the upper body portion 2 and the lower body portion 3 are connected in a balanced manner from left to right, while two large free spaces can be secured around the waist belt 20. Therefore, in this case, handling of work equipment 22 from over the full harness 1A, putting on the waist belt 20, and removing the equipment from over the waist belt 20 can be easily performed.

[0052] Furthermore, as shown in Figure 5, in this embodiment, the two connecting belts 4 are positioned between the upper body portion 2 and the lower body portion 3 such that the narrow portion 4c is located on the side of the body when the full harness 1A is worn on the body. In this case, the upper body portion 2 and the lower body portion 3 are connected in a balanced manner in the front, back, left, and right directions, while also making it easier to handle work equipment 22 over the full harness 1A, to put on the waist belt 20, and to remove the equipment from the waist belt 20.

[0053] Furthermore, the narrow portion 4c is a flat portion positioned on the full harness 1A so as to protrude in the radial direction of the torso when the full harness 1A is worn on the body, as shown in Figure 4. Here, "radial direction of the torso" refers to the radial direction (thickness direction) of the user's torso (waist) when the user is wearing the full harness 1A. In other words, the narrow portion 4c can be positioned so that the user stands perpendicular (90 degrees) to the body when the full harness 1A is worn on the body. In this case, a larger free space can be secured around the waist belt 20.

[0054] In this embodiment, the narrow portion has a circumferential width W1 of the torso shown in Figure 5 that is narrower than the radial width W2 of the torso shown in Figure 4. As a result, in this embodiment, the narrow portion 4c is a flat portion positioned on the full harness 1A so as to protrude in the radial direction of the torso when the full harness 1A is worn on the body. Here, "circumferential direction of the torso" refers to the direction around the user's torso (waist) when the user is wearing the full harness 1A. In particular, the circumferential width W1 of the narrow portion 4c refers to the widest circumferential width W1 within the narrow portion 4c. As a result, a larger free space can be secured around the waist belt 20 compared to when the narrow portion 4c is positioned to lie flat in the circumferential direction of the torso.

[0055] In this embodiment, the narrow portion 4c is formed by folding the base material of the connecting belt 4. Here, the base material of the connecting belt 4 refers to the flat connecting belt 4 before folding. In this embodiment, the base material of the connecting belt 4 has the same belt width D5 as the shoulder belt 5. In this embodiment, the narrow portion 4c is formed by folding the central portion of the base material of the connecting belt 4 between the upper body attachment end 4a and the lower body attachment end 4b in half (halving the width of the belt). The folded portion can be fixed by means of sewing, clips, adhesive, or welding. In this case, the narrow portion 4c of the connecting belt 4 is formed by a simple method. However, the folding of the base material of the connecting belt 4 can be more than two folds. However, it is preferable to fold it an even number of times, such as four folds or six folds.

[0056] Furthermore, the narrow portion 4c can also be formed by twisting the base material of the connecting belt 4. Here, the base material of the connecting belt 4 refers to the flat connecting belt 4 before twisting. In this embodiment as well, the base material of the connecting belt 4 has the same belt width D5 as the shoulder belt 5. In this embodiment, the narrow portion 4c can be formed by twisting the central portion of the base material of the connecting belt 4 between the upper body attachment end 4a and the lower body attachment end 4b in the circumferential direction around the belt extension axis. The twisted portion can also be fixed by fastening means such as sewing, clips, adhesive, or welding. In this case as well, the narrow portion 4c of the connecting belt 4 is formed by a simple method.

[0057] However, the narrow portion 4c of the connecting belt 4 can also be formed by other means. A specific example is to use a base material made of a heat-shrinkable material as the base material for the connecting belt 4, and then heat-shrink the portion of the connecting belt 4 corresponding to the narrow portion. Another specific example is to form at least the narrow portion 4c of the connecting belt 4 using a chain, ring chain, wire rope, or rope. Furthermore, the connecting belt 4 can be made of a different material than the belt of the full harness 1A, as long as it has sufficient strength to maintain the function of the full harness 1A. For example, at least the material of the narrow portion 4c can be metal or resin.

[0058] Furthermore, the Full Harness 1A allows for size adjustment according to the user's physique (for example, the user's height and build), by allowing adjustment of the length of the shoulder straps 5.

[0059] Figure 7 schematically shows an example of how to adjust the length of the shoulder strap 5.

[0060] Referring to Figure 7, the adjustment buckle 9 comprises an annular frame 9a (hereinafter also referred to as "annular frame 9a") and a shaft 9b stretched across the inside of the annular frame 9a. The shaft 9b forms two openings A9 between itself and the annular frame 9a. The end (5a) of the rear overlapping portion 5c of the shoulder belt 5, through which the ring 8 passes, is attached to the shaft 9b. The front overlapping portion 5d of the shoulder belt 5, through which the ring 8 passes, passes, is positioned in front of the rear overlapping portion 5c of the shoulder belt 5, through which the ring 8 passes.

[0061] In this embodiment, the shoulder strap 5 can be lengthened by moving it as shown by the solid arrow in Figure 7. Conversely, in this embodiment, the shoulder strap 5 can be shortened by moving it as shown by the dashed arrow in Figure 7. Therefore, according to this embodiment, the size can be adjusted to suit the user's physique.

[0062] In particular, according to this embodiment, by making one shoulder strap 5 into a loop shape, the adjustment range of the length of the shoulder strap 5 (the stroke length of the shoulder strap 5 when adjusting the shoulder strap 5) can be made longer. Thus, according to this embodiment, the range of motion of the shoulder strap 5 required for size adjustment of the full harness 1A can be made larger, so that one size full harness 1A can cover the user's physique, eliminating the need to develop various types of full harness 1A to suit each size.

[0063] Furthermore, according to this embodiment, since the length of the shoulder strap 5 is adjusted using a single shoulder strap 5, the excess length for adjusting the length of the shoulder strap 5 can be eliminated. This eliminates the need to handle the slack in the excess length of the shoulder strap 5, and also eliminates the need for a fastening component (e.g., hook-and-loop fastener, buckle) to hold the excess length in place. In addition, according to this embodiment, since there is no excess length for adjusting the length of the shoulder strap 5, there is no risk of the excess length getting caught or snagged. Moreover, in this embodiment, the thigh strap 6 also uses a single thigh strap 6, and the operating buckle 13A and insertion buckle 13B of the thigh buckle 13 have the same configuration as the ring 8. Furthermore, in this embodiment, the chest strap 11 also uses a single belt for the right chest strap 11B, and the insertion buckle 12B of the chest buckle 12 has the same configuration as the ring 8. Therefore, according to this embodiment, it is possible to eliminate excess length in the shoulders, chest, thighs, back, etc. Furthermore, according to this embodiment, since there is no excess length in the belt, the shoulder belt can be fixed in any desired position without having to worry about the position of the holder for holding work lights, etc.

[0064] The shoulder strap 5 is equipped with a stopper 10 to fix the length of the shoulder strap 5. The stopper 10 is a stopper that allows the overlapping portion 5E, where the front overlapping portion 5d and the rear overlapping portion 5c of the shoulder strap 5 overlap, to slide through in the extending direction of the shoulder strap 5 and elastically holds the overlapping portion 5E. This makes it possible to firmly maintain the length of the shoulder strap 5. In this embodiment, the stopper 10 is a cylindrical member having a through hole, formed of, for example, rubber or an elastic resin. In this embodiment, the through hole of the stopper 10 is a slit hole through which the belt passes.

[0065] Furthermore, referring to Figure 1, in this embodiment, the chest belt 11 is equipped with a slide buckle 23 that is movable in the extending direction of the shoulder belt 5. The slide buckle 23 is equipped with a positioning means 24 that can be positioned in the extending direction of the shoulder belt 5. This allows the vertical position of the chest belt 11 to be adjusted in accordance with the adjustment of the length of the shoulder belt 5.

[0066] In this embodiment, the chest belt 11 is fixed to the slide buckle 23. In addition, in this embodiment, the slide buckle 23 slidably holds the overlapping portion 5E of the shoulder belt 5 (the rear overlapping portion 5c and the front overlapping portion 5c of the shoulder belt 5). This allows the slide buckle 23 to slide together with the chest belt 11 in the longitudinal direction (up and down direction) of the shoulder belt 5. Furthermore, in this embodiment, the positioning means 24 is a plug that can be inserted between the overlapping portion of the shoulder belt 5 and the slide buckle 23. In this embodiment, the plug is a plate-shaped plug. In this embodiment, by making the plug a plate-shaped plug, it can be easily inserted between the overlapping portion of the shoulder belt 5 and the slide buckle 23. This allows the vertical position of the chest belt 11 to be adjusted in accordance with the adjustment of the length of the shoulder belt 5.

[0067] In particular, in this embodiment, the plug (24) is equipped with an elastic claw. The elastic claw can be removably locked to the slide buckle 23. This allows the plug (24) to be removably fixed to the slide buckle 23. Furthermore, in this embodiment, the slide buckle 23 is equipped with a hook hanger 23a for holding the structure-side hook of the lanyard. This allows the full harness 1A to suspend and hold the lanyard so as not to interfere with the user's work when not being used as a fall protection device. However, the hook hanger 23a can be omitted.

[0068] Figure 8 is a schematic rear view of a full harness 1B of a fall arrest device according to a second embodiment of the present invention. The shape of the pelvic belt 14 of the full harness 1B differs from that of the full harness 1A. Figure 9 also schematically shows a padded full harness 1B with the pads attached to the full harness 1B from the rear. In this example, only the shoulder pads 15 are attached to the full harness 1B. In the full harness 1B, components that are substantially the same as those of the full harness 1A are denoted by the same reference numerals, and their descriptions are omitted.

[0069] The above describes exemplary embodiments of the present invention, and various modifications can be made without departing from the scope of the claims. For example, in this embodiment, the shoulder belt 5 is configured separately from the connecting belt 4, but it can be configured as the connecting belt 4 by using, for example, an add-on part. Also, while it is preferable that there are two connecting belts 4 provided on the full harness, there can be three or more. Furthermore, as in this embodiment, when the connecting belt 4 is fixed to the lower body portion 3, the connecting belt 4 can be connected to the upper body portion 2 by using another connecting member (for example, the applicant's product "Safe Holder") instead of the ring 8. Also, at least one of the upper body portion 2 and the lower body portion 3 can be detachably attached to the connecting belt 4. Moreover, since the connecting belt 4 has a narrow portion 4c, it can be stored in the gap formed between two work tools 22. This prevents the connecting belt 4 from moving freely during the user's work. More preferably, a retaining member can be used to prevent the connecting belt 4 from coming out of the gap. Examples of anti-detachment components include fasteners, hooks, snaps, magnets, clip components, and the applicant's product "Safe Holder". Furthermore, in this embodiment, the shoulder belt 5 is configured such that the color (design) of the lining of the rear overlapping portion 5c and the color (design) of the outer fabric of the front overlapping portion 5d are different. In this case, when wearing the full harness, it is possible to prevent a part of the shoulder belt 4 from being twisted and turned inside out. [Explanation of Symbols]

[0070] 1A: Full harness, 1B: Full harness, 2: Upper body section, 3: Lower body section 4: Connecting belt, 4A: Left connecting belt, 4B: Right connecting belt, 4a: Upper body attachment end of connecting belt, 4b: Lower body attachment end of connecting belt, 4c: Narrow section of connecting belt, 5: Shoulder belt, 5a: One end of shoulder belt, 5b: Other end of shoulder belt, 5c: Rear overlapping section of shoulder belt, 5d: Front overlapping section of shoulder belt, 51: Left shoulder strap, 51a: One end of the left shoulder strap, 51b: The other end of the left shoulder strap, 52: Right shoulder strap, 52a: One end of the right shoulder strap, 52b: The other end of the right shoulder strap, 6: Thigh strap, 6A: Left thigh strap, 6B: Right thigh strap, 7: Back buckle, 7a: Lanyard attachment, 8: Ring, 8A: Left ring, 8B: Right ring, 9: Adjustment buckle, 9a: Ring frame, 9b: Shaft, 10: Stopper, 11: Chest strap, 11A: Left chest strap, 11B: Right chest strap, 12: Chest buckle, 12A: Operating buckle of the chest buckle, 12B: Insertion buckle of the chest buckle, 13: Thigh buckle, 13A: Operating buckle of the thigh buckle, 13B: Insertion buckle of thigh buckle, 14: Pelvic belt, 15: Shoulder pad, 16: Thigh pad, 20: Waist belt, 21: Lanyard attachment part, 22: Work supplies, 22a: Tool holder, 22b: Tools, 22c: Tool pouch, 23: Slide buckle, 24: Positioning means, A9: Opening, Da: Belt width of the upper body attachment end of the connecting belt, Db: Belt width of the lower body attachment end of the connecting belt, Dc: Belt width of the narrow part of the connecting belt, D5: Belt width of the shoulder belt, W1: Waist circumference width, W2: Waist diameter width

Claims

1. It comprises an upper body section with two shoulder straps, a lower body section with two thigh straps, and a plurality of connecting belts that connect the upper body section and the lower body section. The aforementioned connecting belt is a full-body harness for fall protection, having a narrow section between the upper body attachment end and the lower body attachment end of the connecting belt.

2. The full harness for fall protection equipment according to claim 1, wherein the plurality of connecting belts are two connecting belts arranged at intervals in the left-right direction.

3. The full-body harness for fall protection according to claim 1, wherein the two connecting belts are positioned between the upper body portion and the lower body portion such that the narrow portion is positioned on the side of the body when the full-body harness is worn on the body.

4. The narrow portion is a flat portion of the full harness that protrudes in the radial direction of the torso when the full harness is worn on the body, as described in claim 1 for a fall arrest device full harness.

5. The full harness for fall protection equipment according to claim 1, wherein the narrow portion is a portion formed by bending the base material of the connecting belt or a portion formed by twisting the base material of the connecting belt.

6. The shoulder strap is equipped with a ring through which the shoulder strap passes and an adjustment buckle. The adjustment buckle comprises an annular frame and a shaft that spans the inside of the frame and forms two openings between itself and the frame. A full harness for fall protection equipment according to claim 1, wherein the end of the rear overlapping portion of the shoulder belt through which the ring passes is attached to the shaft, and the front overlapping portion of the shoulder belt through which the ring passes passes is positioned in front of the rear overlapping portion of the shoulder belt.

7. The shoulder strap is equipped with a stopper to fix the length of the shoulder strap. The stopper is a full harness for fall protection equipment according to claim 6, wherein the stopper allows the overlapping portion of the belt, where the front overlapping portion of the shoulder belt and the rear overlapping portion of the shoulder belt are superimposed, to slide through in the extending direction of the shoulder belt and elastically hold the overlapping portion of the belt.

8. The full harness for fall protection equipment according to claim 1, wherein the upper body portion further comprises a chest belt connecting the two shoulder belts, the chest belt is equipped with a slide buckle that is movable in the extending direction of the shoulder belts, and the slide buckle is equipped with a positioning means that is positioned in the extending direction of the shoulder belts.

9. The full harness of the fall protection device according to claim 8, wherein the slide buckle is equipped with a hanger capable of securing a lanyard hook.

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