Inner spacer

Abstract

To provide an inner spacer capable of suppressing positional deviation of a chest belt caused when falling while wearing a full harness type safety belt.SOLUTION: An inner spacer 1 is used together with a full harness type safety belt 100 having a chest belt 103 for connecting a pair of shoulder belts 101 hung on the right and left shoulders of a wearer H to each other in front of the chest of the wearer H, and is worn on the inside of a garment having the full harness type safety belt attached to the outside of the garment. In the inner spacer, a front body 10 for covering the chest of the wearer H has: an elastically deformable upper cushion 11 arranged in its upper portion; an elastically deformable lower cushion 12 arranged in its lower portion; and a connection part 13 arranged between the upper cushion 11 and the lower cushion 12 to connect them and extending in a body width direction W. The connection part 13 has rigidity lower than those of the upper cushion 11 and the lower cushion 12, and is located on the upper side of the chest belt 103 in a worn state.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an inner spacer. [Background technology]

[0002] Conventionally, to ensure safety when working at heights, it has been necessary to wear a full-body harness (a full-body harness fall arrest device). A full-body harness has a pair of shoulder belts that are worn over the wearer's shoulders, a pair of thigh belts that are worn over the wearer's thighs, and a chest belt that connects the pair of shoulder belts together in front of the wearer's chest. By tightly binding multiple parts of the body with each belt, it prevents falls and reduces physical strain. Meanwhile, as clothing worn during work, etc., fan-equipped clothing is known that uses a blower to introduce outside air into the clothing and circulates the outside air between the wearer's body and the clothing, thereby evaporating sweat and cooling the body. Therefore, there is a need to wear a full-body harness over fan-equipped clothing when working at heights.

[0003] However, when a full harness type safety belt is worn on the outside of fan-equipped clothing, the wearer's body is tightly bound together with the clothing, and the passage of outside air inside the clothing is blocked by the belts of the safety belt, reducing the cooling function. Therefore, it has been considered to secure a gap between the clothing and the wearer by wearing an inner spacer inside the clothing and wearing a full harness type safety belt on the outside of the clothing (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6704161 [Patent Document 2] Utility Model Registration No. 3227120 Summary of the Invention [Problem to be solved by the invention]

[0005] Since a full-body safety harness has one end connected to a lanyard that can be hooked onto a fixed object such as a building's handrail, if the wearer falls while wearing the full-body safety harness, they will be suspended in mid-air in a forward-leaning position via the lanyard. At this time, the chest belt of the full-body safety harness is pulled toward the wearer's neck. If an inner spacer is worn inside the clothing, the chest belt may slip over the inner spacer and shift toward the wearer's neck, causing the chest belt to come into contact with the wearer's neck and compress it.

[0006] The present invention has been made in response to the above-mentioned problem, and aims to provide an inner spacer that can prevent the chest belt from shifting position when a person wearing a full harness falls. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides an inner spacer that is worn inside a garment when a full harness type safety belt is worn on the outside of the garment, the inner spacer comprising a front body part that covers the chest of the wearer and a back body part that covers the back of the wearer. The front body part is disposed at the top and Divide the neckline an elastically deformable upper cushion portion disposed below the upper cushion portion, an elastically deformable lower cushion portion disposed below the upper cushion portion, and a connecting portion disposed between the upper cushion portion and the lower cushion portion to connect them and extend in the width direction, wherein the connecting portion has lower rigidity than the upper cushion portion and the lower cushion portion; The neckline than lower side The structure is positioned at [Effects of the Invention]

[0008] As a result, the inner spacer of the present invention can suppress displacement of the chest belt that occurs when a person wearing a full harness type safety belt falls. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a front view showing a state in which the inner spacer of the first embodiment is worn inside a full harness type safety belt. [Figure 2] FIG. 1 is a rear view showing a state in which the inner spacer of the first embodiment is worn inside a full harness type safety belt. [Figure 3] FIG. 2 is a front view showing the inner spacer of the first embodiment. [Figure 4] FIG. 2 is a rear view showing the inner spacer of the first embodiment. [Figure 5] FIG. 2 is an explanatory diagram of the state of wearing shown in FIG. 1 as seen from the side. [Figure 6] FIG. 2 is an explanatory diagram showing the material configuration of the inner spacer of the first embodiment. [Figure 7] FIG. 3 is an explanatory diagram showing the positional relationship between an inner spacer and a chest belt according to the first embodiment. [Figure 8] FIG. 10 is an explanatory diagram showing the pulling force acting on the chest belt when the user falls. [Figure 9] FIG. 4 is an explanatory diagram showing the positional relationship between the inner spacer and the chest belt of the first embodiment when the device falls. [Figure 10] 1 is a rear view illustrating the positional relationship between the outside air flowing inside the garment and the inner spacer of Example 1. FIG. [Figure 11] 11 is a cross-sectional view taken along the line AA in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the inner spacer of the present invention will be described below based on Example 1 shown in the drawings. In the following description, terms such as "up and down," "left and right," and "front and back" are used based on the wearer H wearing the inner spacer 1.

[0011] The inner spacer 1 of the first embodiment is worn inside the clothing (jacket) when the wearer H wears a full harness type safety belt (full harness type fall arrest device) 100 on the outside of the clothing. In each of Figures 1, 2, 5, and 7 to 11, the clothing worn between the inner spacer 1 and the full harness type safety belt 100 is not shown.

[0012] The clothing may be fan-equipped clothing with an attached air blower that can introduce outside air into the clothing, or it may be ordinary work clothing without an attached air blower. When wearing fan-equipped clothing, the inner spacer 1 reduces the bite of the full harness type safety belt 100 into the body and friction, while creating a gap between the clothing and the body. This allows the inner spacer 1 to ensure a passage for outside air inside the clothing, preventing a decrease in cooling function. When ordinary work clothing is worn as the clothing, the inner spacer 1 reduces the bite of the full harness type safety belt 100 into the body and friction, etc.

[0013] 1 and 2 is a conventionally known type known as an X-type. That is, the full harness type safety belt 100 is provided with a pair of left and right shoulder belts 101, a pair of left and right thigh belts 102, and a chest belt 103.

[0014] The pair of shoulder belts 101 are belts that are respectively hung on both shoulders of the wearer H. As shown in Fig. 2, the shoulder belts 101 are held in a crossed state via belt loops 104 on the back side of the wearer H. At the crossing point of the shoulder belts 101, a D-ring 105 is provided as a means for attaching a lanyard (not shown).

[0015] The pair of thigh belts 102 are belts into which the left and right legs of the wearer H are inserted, respectively. The thigh belts 102 can be connected and disconnected via buckles 106 to make wearing easy. The pair of thigh belts 102 are also connected on the back side of the wearer H by a buttocks support belt 107 (see FIG. 2).

[0016] The chest belt 103 is a belt that connects the pair of shoulder belts 101 together in front of the chest of the wearer H. The chest belt 103 can be connected and disconnected via a buckle 108 to make it easier to put on the harness.

[0017] As shown in Figures 3 and 4, the inner spacer 1 of Example 1 has a front body part 10 that covers the chest of the wearer H and a back body part 20 that covers the back of the wearer H, and is worn on the upper body of the wearer H.

[0018] As shown in Fig. 5, the front body 10 and the back body 20 of the inner spacer 1 are directly connected at their upper ends 10a, 20a. Furthermore, both side ends 10b, 10c of the front body 10 in the width direction W are connected to both side ends 20b, 20c of the back body 20 in the width direction W via a plurality of stretchable rubber belts 30 (two in Example 1). Furthermore, the length of the front body 10 in the length direction L is shorter than the length of the back body 20 in the length direction L. Furthermore, the length from the bottom of the inner spacer 1 to one end 30a connected to the front body 10 and the length from the bottom of the inner spacer 1 to the other end 30b connected to the back body 20 are set to be the same length.

[0019] 5, when a wearer H wears the inner spacer 1, the connection position R between the upper end 10a of the front body 10 and the upper end 20a of the back body 20 is located forward of the shoulder ridge r of the wearer H. When wearing the inner spacer 1, the shoulders of the wearer H are covered by the back-side cushion portion 21 of the back body 20, which will be described later.

[0020] As shown in FIG. 6, the inner spacer 1 is formed of a material S in which a breathable cushioning material 3 is appropriately sandwiched between breathable inner fabrics 2.

[0021] The inner fabric 2 is formed by overlapping multiple mesh fabrics 2a made of polyester, nylon, or the like. The "mesh fabric 2a" is formed by loosely knitting warp and weft threads, and is a fabric with a coarser weave and higher breathability than typical fabrics. The thickness T1 of the inner fabric 2 is preferably set to 1 mm to 8 mm, and in Example 1, it is set to approximately 4 mm. If the thickness T1 of the inner fabric 2 is less than 1 mm, it is difficult to maintain the required fabric strength. Furthermore, if the thickness T1 of the inner fabric 2 exceeds 8 mm, problems such as difficulty in sewing, reduced flexibility resulting in poor comfort and difficulty in movement, and reduced breathability may occur.

[0022] Furthermore, the inner fabric 2 may be formed by overlapping a plurality of mesh fabrics 2a having different mesh sizes, or by overlapping a plurality of mesh fabrics 2a having the same mesh size.

[0023] The cushioning material 3 is a three-dimensionally shaped member formed by randomly entangling thermoplastic linear resin such as polyethylene resin and three-dimensionally heat-welding it. In other words, the cushioning material 3 is a so-called 3D mesh material (a synthetic resin fiber formed into a three-dimensional mesh). The cushioning material 3 has a large number of holes penetrating through the thickness between the front and back surfaces, and a large number of voids (or holes) extending parallel (or nearly parallel) to the front or back surfaces, allowing ventilation in multiple directions via the voids and holes within. Furthermore, the cushioning material 3 is made of linear resin with a predetermined rigidity, which gives it high-resilience cushioning properties and flexibility, allowing it to be elastically deformed.

[0024] Furthermore, the thickness T2 of the cushioning material 3 is preferably set to 10 mm to 30 mm, and is set to approximately 20 mm in Example 1. If the thickness T2 of the cushioning material 3 is less than 10 mm, it is difficult to obtain the required cushioning performance. If the thickness T2 of the cushioning material 3 exceeds 30 mm, problems such as poor comfort and difficulty in movement, and reduced breathability may occur.

[0025] 3, the front body 10 of the inner spacer 1 comprises a left front body 10x and a right front body 10y that are separated into left and right parts from the center in the body width direction W, and a linear fastener 10z that fastens the left front body 10x and the right front body 10y so that they can be opened and closed. The left front body 10x and the right front body 10y are symmetrical about a center line O (extending direction of the linear fastener 10z) that passes through the center of the inner spacer 1 in the body width direction W and extends in the body length direction L.

[0026] Furthermore, the front body 10 has an upper cushion portion 11, a lower cushion portion 12, and a connecting portion 13. In Example 1, the front body 10 is divided into a left front body portion 10x and a right front body portion 10y from the center in the body width direction W, and therefore the upper cushion portion 11, the lower cushion portion 12, and the connecting portion 13 are also divided into left and right portions from the center of the front body 10 in the body width direction W.

[0027] The upper cushion portion 11 is placed at the top of the front body 10 and defines the neckline 4 of the inner spacer 1. The upper cushion portion 11 is constructed by sandwiching a cushion material 3 inside an inner fabric 2 and sewing the inner fabric 2 along the periphery of the cushion material 3. The upper cushion portion 11 is elastically deformable due to the presence of the cushion material 3.

[0028] In Example 1, to facilitate sewing, the cushion material 3 is disposed in the center in the thickness direction of the inner fabric 2. That is, in the upper cushion portion 11, the thickness of the mesh fabric 2a covering the front surface of the cushion material 3 and the thickness of the mesh fabric 2a covering the back surface of the cushion material 3 are set to be the same.

[0029] The lower cushion portion 12 is placed under the front body 10 and supports the chest belt 103 of the full harness type safety belt 100. The lower cushion portion 12 is constructed by sandwiching a cushion material 3 inside an inner fabric 2 and sewing the inner fabric 2 along the periphery of the cushion material 3. The lower cushion portion 12 is elastically deformable due to the presence of the cushion material 3.

[0030] In Example 1, the cushion material 3 is also disposed in the center of the inner fabric 2 in the thickness direction in the lower cushion portion 12 in order to facilitate sewing.

[0031] The lower cushion portion 12 is set so that its minimum length L1 in the body length direction L is longer than the width W1 (see FIG. 1) of the chest belt 103 of the full harness type safety belt 100. It is preferable that the minimum length L1 is at least 15 mm longer than the width W1. Here, the "width W1 of the chest belt 103" is the length of the chest belt 103 in the body length direction L. In Example 1, since the width W1 of the chest belt 103 is 42 mm, the minimum length L1 of the lower cushion portion 12 in the body length direction L is set to 57 mm or more.

[0032] If the difference between the minimum length L1 and the width W1 is small, that is, if the minimum length L1 is approximately the same as the width W1 or if the minimum length L1 is slightly greater than the width W1, the wearing position of the chest belt 103 will not stably face the lower cushion portion 12. As a result, the connecting portion 13 is tightly bound by the chest belt 103, making it difficult to create a sufficient gap between the garment and the body of the wearer H. Furthermore, if the minimum length L1 is shorter than the width W1, the chest belt 103 will protrude from the lower cushion portion 12, and the connecting portion 13 or the upper cushion portion 11 will be tightly bound by the chest belt 103.

[0033] Furthermore, it is preferable that the upper limit of the minimum length L1 of the lower cushion portion 12 in the body length direction L is approximately half the length in the body length direction L of the front body of the clothing worn between the inner spacer 1 and the full harness type safety belt 100. If the minimum length L1 is too long, the area of ​​the body surface of the wearer H covered by the inner spacer 1 becomes large, which may result in poor heat dissipation.

[0034] The connecting part 13 is disposed between the upper cushion part 11 and the lower cushion part 12, and extends over the entire length of the front body 10 in the width direction W. The connecting part 13 is formed below the neckline 4 of the inner spacer 1, and is positioned above the chest belt 103 when the full harness type safety belt 100 is worn. In other words, as shown in Figure 1, the connecting part 13 is positioned between the neckline 4 of the inner spacer 1 and the wearing position of the chest belt 103.

[0035] Furthermore, the connecting portion 13 is made up of only the inner fabric 2, and does not sandwich the cushioning material 3. For this reason, the connecting portion 13 has lower rigidity than the upper cushion portion 11 and the lower cushion portion 12. In other words, the connecting portion 13 is more easily deformable than the upper cushion portion 11 and the lower cushion portion 12.

[0036] Furthermore, the thickness of the connecting portion 13 is thinner than the thickness of the upper cushion portion 11 and the lower cushion portion 12 because the cushioning material 3 is not sandwiched therein. Therefore, the front body 10 is recessed at the connecting portion 13 relative to the front and back surfaces of the inner spacer 1 by the thickness difference between the upper cushion portion 11 or the lower cushion portion 12 and the connecting portion 13 (see FIG. 7 ). In Example 1, the cushioning material 3 is disposed in the center of the thickness direction of the inner fabric 2 in both the upper cushion portion 11 and the lower cushion portion 12. Therefore, the connecting portion 13 disposed therebetween is recessed relative to both the front and back surfaces of the inner spacer 1. However, the recess of the inner spacer 1 at the connecting portion 13 can be set only on the front side or only on the back side of the inner spacer 1 by adjusting the sewing position when sewing the inner fabric 2 along the periphery of the cushioning material 3.

[0037] 7, the inner fabric 2 constituting the connecting portion 13 is continuous with the inner fabric 2 constituting the upper cushion portion 11 and the inner fabric 2 constituting the lower cushion portion 12. Therefore, the connecting portion 13 connects the upper cushion portion 11 and the lower cushion portion 12.

[0038] In Example 1, both end portions 13b, 13c of the connecting portion 13 in the width direction W are positioned higher than the central portion 13a in the width direction W. The inclination angle θ (see FIG. 3) of the connecting portion 13 is set to approximately 10°. Here, the "inclination angle θ" is the angle between a horizontal line passing through the central portion of the front body 10 in the width direction W and extending along the width direction W, and the extending direction of the connecting portion 13. When the inclination angle θ is a negative value, both end portions 13b, 13c of the connecting portion 13 in the width direction W are positioned lower than the central portion 13a in the width direction W. The inclination angle θ can be set arbitrarily depending on the size of the upper cushion portion 11 and the lower cushion portion 12, the thickness and hardness of the inner fabric 2 or the cushioning material 3, etc.

[0039] Furthermore, the width W2 of the connecting portion 13 (see FIG. 3) is constant over the entire length in the width direction W, and is preferably set to 10 mm to 60 mm. The "width W2 of the connecting portion 13" refers to the length of the connecting portion 13 in the length direction L. In Example 1, the width W2 of the connecting portion 13 is set to approximately 40 mm. If the width W2 of the connecting portion 13 is less than 10 mm, the upper cushion portion 11 and the lower cushion portion 12 may become closer to each other, which may reduce the effectiveness of preventing the chest belt 103 from shifting position due to deformation of the connecting portion 13 that occurs when the garment falls. If the width W2 of the connecting portion 13 exceeds 60 mm, the chest belt 103 may easily dig into the connecting portion 13, which may tightly bind the connecting portion 13, making it difficult to create a sufficient gap between the garment and the body of the wearer H.

[0040] 4, the back body 20 has a back cushion portion 21, a central connecting portion 22, a left auxiliary cushion portion 23, a right auxiliary cushion portion 24, a left connecting portion 25, and a right connecting portion 26. The back body 20 has an axisymmetric shape with the center line O as the line of symmetry.

[0041] The back-side cushion portion 21 is a portion that covers at least the shoulders of the wearer H when the inner spacer 1 is worn. The back-side cushion portion 21 is divided into a left back-side cushion portion 21a disposed on the left side of the central connecting portion 22 and a right back-side cushion portion 21b disposed on the right side of the central connecting portion 22.

[0042] The left back-side cushion portion 21a extends from the connection position R with the front body 10 to the hem of the back body 20. The left back-side cushion portion 21a is constructed by sandwiching a cushion material 3 inside an inner fabric 2 and sewing the inner fabric 2 along the periphery of the cushion material 3. The left back-side cushion portion 21a is elastically deformable due to the inclusion of the cushion material 3. In Example 1, to facilitate sewing, the cushion material 3 is also disposed in the center of the thickness direction of the inner fabric 2 in the left back-side cushion portion 21a.

[0043] The right back-side cushion portion 21b extends from the connection position R with the front body 10 to the hem of the back body 20. The right back-side cushion portion 21b is constructed by sandwiching a cushion material 3 inside an inner fabric 2 and sewing the inner fabric 2 along the periphery of the cushion material 3. The right back-side cushion portion 21b is elastically deformable due to the inclusion of the cushion material 3. In Example 1, to facilitate sewing, the cushion material 3 is also disposed in the center of the thickness direction of the inner fabric 2 in the right back-side cushion portion 21b.

[0044] The central connecting part 22 is located in the center of the back body 20 in the width direction W, and is sandwiched between the left back cushion part 21a and the right back cushion part 21b. The central connecting part 22 extends over the entire length of the back body 20 in the length direction L (from the neckline 4 to the hem of the inner spacer 1). The central connecting part 22 is made up of only the inner fabric 2, and no cushioning material 3 is sandwiched between them. For this reason, the central connecting part 22 is less rigid and thinner than the upper cushion part 11 and the lower cushion part 12.

[0045] Furthermore, the inner fabric 2 constituting the central connecting portion 22 is continuous with the inner fabric 2 constituting the left back-side cushion portion 21a and the inner fabric 2 constituting the right back-side cushion portion 21b. Therefore, the central connecting portion 22 connects the left back-side cushion portion 21a and the right back-side cushion portion 21b.

[0046] Furthermore, the width W3 of the central connector 22 is set to be shorter than the maximum width W4 (see FIG. 2) of the belt loop 104 at least at the position where it contacts the belt loop 104 of the full harness type safety belt 100. Moreover, the width W3 of the central connector 22 is shorter (narrower) at the upper part than at the lower part in the body length direction L. In Example 1, the maximum width W4 of the belt loop 104 is 82 mm, and the width W3 of the central connector 22 is set to 100 mm at the lower part in the body length direction L and 80 mm at the upper part in the body length direction L.

[0047] In Example 1, as shown in FIG. 4, the width W3 of the central connector 22 changes stepwise in the middle in the body length direction L, but it may also change continuously and gradually along the body length direction L. The width W3 of the central connector 22 may also be constant over the entire length of the central connector 22. The "width W3 of the central connector 22" is the length of the central connector 22 in the body width direction W. The "maximum width W4 of the belt loop 104" is the maximum length of the belt loop 104 in the body width direction W.

[0048] The left auxiliary cushion portion 23 is disposed to the left of the left back cushion portion 21a and is connected to the left back cushion portion 21a via a left connecting portion 25. The right auxiliary cushion portion 24 is disposed to the right of the right back cushion portion 21b and is connected to the right back cushion portion 21b via a right connecting portion 26.

[0049] The left auxiliary cushion portion 23 and the right auxiliary cushion portion 24 are both configured by sandwiching a cushion material 3 inside an inner fabric 2 and sewing the inner fabric 2 along the periphery of the cushion material 3. The left auxiliary cushion portion 23 and the right auxiliary cushion portion 24 are elastically deformable because they have the cushion material 3. In Example 1, to facilitate sewing, the cushion material 3 is also disposed in the center of the thickness direction of the inner fabric 2 in the left auxiliary cushion portion 23 and the right auxiliary cushion portion 24.

[0050] The left auxiliary cushion portion 23 and the right auxiliary cushion portion 24 have the same bottom position as the left back-side cushion portion 21a and the right back-side cushion portion 21b, and are shorter in length in the body length direction L than the left back-side cushion portion 21a and the right back-side cushion portion 21b. Furthermore, the left auxiliary cushion portion 23 and the right auxiliary cushion portion 24 each have an upper edge of a curved arc with its apex at the center in the body width direction W (see FIG. 5). The cushion portions 3 of the left auxiliary cushion portion 23 and the right auxiliary cushion portion 24 do not have to have an upper edge curved in an arc, and may have, for example, a rectangular parallelepiped shape.

[0051] The left connecting portion 25 and the right connecting portion 26 are formed only by the inner fabric 2, and no cushioning material 3 is sandwiched between them. Therefore, the left connecting portion 25 and the right connecting portion 26 are less rigid and thinner than the upper cushion portion 11 and the lower cushion portion 12. The left connecting portion 25 extends in the body length direction L along the left edge of the left back cushion portion 21a. The right connecting portion 26 extends in the body length direction L along the right edge of the right back cushion portion 21b. Furthermore, the width of the left connecting portion 25 (length in the body width direction W) and the width of the right connecting portion 26 (length in the body width direction W) can both be set arbitrarily.

[0052] The function of the inner spacer 1 of the first embodiment will be explained below with reference to FIGS.

[0053] The inner spacer 1 of Example 1 is worn inside the clothing (not shown) beforehand when the wearer H puts on the full harness type safety belt 100 on the outside of the clothing. That is, the wearer H first puts on the inner spacer 1, then puts on the clothing, and then puts on the full harness type safety belt 100. In addition, one end of a lanyard (not shown) whose tip is hooked onto a fixed object such as a handrail of a building is connected to the D-ring 105 of the full harness type safety belt 100.

[0054] When the wearer H falls, the wearer H is suspended in mid-air via the lanyard, and the full harness type safety belt 100 is pulled upward around the D-ring 105, causing the wearer H to lean forward. As a result, a pulling force F acts on the chest belt 103 in the direction toward the neck of the wearer H, as shown in Figure 8.

[0055] In contrast, the inner spacer 1 of Example 1 has a front body 10 covering the chest of the wearer H, which has an elastically deformable upper cushion part 11 arranged at the top, an elastically deformable lower cushion part 12 arranged at the bottom, and a connecting part 13 arranged between the upper cushion part 11 and the lower cushion part 12 to connect them and extending in the body width direction W. The connecting part 13 has lower rigidity than the upper cushion part 11 and the lower cushion part 12, and is located above the chest belt 103 of the full harness-type safety belt 100 when worn.

[0056] Therefore, when a pulling force F acts on the chest belt 103 in a direction toward the neck of the wearer H, the connecting portion 13, which has low rigidity, of the inner spacer 1 is deformed, and, influenced by the fact that the wearer H has fallen and is in a forward-leaning position, the chest belt 103 bites into the lower cushion portion 12, as shown in Fig. 9. Moreover, because the chest belt 103 bites into the lower cushion portion 12, the acting direction of the pulling force F changes and becomes a direction toward the chest of the wearer H.

[0057] Therefore, the force pulling the chest belt 103 (pulling force F) hardly acts on the upper cushion part 11 of the inner spacer 1, and it is possible to suppress displacement of the chest belt 103 toward the neck of the wearer H. In other words, the inner spacer 1 of Example 1 can suppress displacement of the chest belt 103 that occurs when the wearer falls while wearing the full harness type safety belt 100.

[0058] Furthermore, the inner spacer 1 of Example 1 can suppress the chest belt 103 from shifting position when the wearer falls, so that the chest belt 103 does not come into contact with the neck of the wearer H and can prevent pressure on the neck when the wearer falls.

[0059] Furthermore, in the inner spacer 1 of Example 1, both end portions 13b, 13c of the connecting portion 13 in the body width direction W are positioned higher than the central portion 13a in the body width direction W. Therefore, the inner spacer 1 of Example 1 can distribute the pulling force F transmitted from the chest belt 103 to the lower cushion portion 12 when falling. As a result, the inner spacer 1 of Example 1 can further suppress displacement of the chest belt 103 that occurs when falling while wearing the full harness-type safety belt 100.

[0060] Furthermore, in the inner spacer 1 of Example 1, the minimum length L1 in the body length direction L of the lower cushion part 12 is longer than the width W1 of the chest belt 103 of the full harness type safety belt 100. Therefore, the inner spacer 1 of Example 1 can stably position the chest belt 103 opposite the lower cushion part 12, and can prevent the connecting part 13 from being tightly bound by the chest belt 103. As a result, in the event of a fall, the chest belt 103 appropriately interferes with the lower cushion part 12, and displacement of the chest belt 103 can be suppressed.

[0061] In the inner spacer 1 of Example 1, the connecting portion 13 is located below the neckline 4 of the inner spacer 1. Therefore, the inner spacer 1 of Example 1 can make the chest belt 103 bite into the lower cushion portion 12 at a position below the neckline 4. As a result, the inner spacer 1 of Example 1 can prevent the chest belt 103 from shifting position and suppress pressure on the neck when falling.

[0062] Furthermore, in the inner spacer 1 of Example 1, the thickness of the connecting portion 13 is thinner than the thickness of the upper cushion portion 11 and the lower cushion portion 12. In other words, in the inner spacer 1 of Example 1, the connecting portion 13 is recessed relative to the upper cushion portion 11 and the lower cushion portion 12.

[0063] Therefore, when outside air is introduced into the clothing worn between the inner spacer 1 and the full harness type safety belt 100, the outside air introduced into the clothing can flow along the connecting part 13. In other words, the inner spacer 1 of Example 1 allows the outside air introduced into the clothing to circulate smoothly, and can suppress a decrease in the cooling function caused by the outside air introduced into the clothing.

[0064] The inner spacer 1 of Example 1 is formed from a material S in which a breathable cushioning material 3 is appropriately sandwiched between breathable inner fabric 2. Therefore, the outside air inside the clothing can easily pass through the inner spacer 1 itself, and the inner spacer 1 of Example 1 can smoothly circulate the outside air introduced into the clothing.

[0065] Furthermore, in the inner spacer 1 of Example 1, the front body 10 is divided into a left front body 10x and a right front body 10y at a center 10d in the width direction W, and a linear fastener 10z is arranged in the center 10d in the width direction W. Here, no cushioning material 3 is arranged in the area where the linear fastener 10z is arranged, and the thickness of the linear fastener 10z is thinner than the upper cushion portion 11 and the lower cushion portion 12. Therefore, outside air introduced into the garment can flow along the linear fastener 10z, and the inner spacer 1 of Example 1 can further smoothly circulate outside air introduced into the garment.

[0066] Furthermore, the connecting position R of the front body 10 and the back body 20 is relatively stiff and thin due to overlapping seams. Therefore, it is difficult for the inner spacer 1 to sufficiently cushion the impact of the shoulder belts 101 of the full harness type safety belt 100 at the connecting position R. In contrast, in the inner spacer 1 of Example 1, the connecting position R of the upper end 10a of the front body 10 and the upper end 20a of the back body 20 is shifted forward with respect to the shoulder ridge line r of the wearer H. When the inner spacer 1 is worn, both shoulders of the wearer H are covered by the back-side cushion portions 21 of the back body 20.

[0067] As a result, the inner spacer 1 of the first embodiment can reduce the impact of the shoulder belts 101 on the shoulders of the wearer H, thereby reducing the burden on the wearer H.

[0068] In the inner spacer 1 of Example 1, the back body 20 has a central connecting part 22 located in the center in the body width direction W, a left back cushion part 21a located to the left of the central connecting part 22 and extending over the entire length in the body length direction L, and a right back cushion part 21b located to the right of the central connecting part 22 and extending over the entire length in the body length direction L. The central connecting part 22 connects the left back cushion part 21a and the right back cushion part 21b, and is set to a thickness thinner than the thicknesses of the left back cushion part 21a and the right back cushion part 21b.

[0069] Therefore, as shown in Figure 10, when outside air is introduced into the clothing worn between the inner spacer 1 and the full harness type safety belt 100, the outside air introduced into the clothing flows along the central connecting part 22 and can head toward the neck of the wearer H.

[0070] Moreover, in the inner spacer 1 of Example 1, the width W3 of the central connecting portion 22 is shorter than the width W4 of the belt loops 104 at the position where the belt loops 104, which hold the pair of shoulder belts 101 in a crossed state on the back side of the wearer H, come into contact. As a result, as shown in Fig. 11, the inner spacer 1 of Example 1 can support the belt loops 104 with the left back-side cushion portion 21a and the right back-side cushion portion 21b, and can ensure a gap between the central connecting portion 22 and the belt loops 104. In other words, the inner spacer 1 of Example 1 does not block the passage of outside air flowing along the central connecting portion 22.

[0071] As a result, the flow of outside air along the central connecting part 22 is not obstructed by the belt loop 104. Therefore, even when the full harness type safety belt 100 is worn, the inner spacer 1 of Example 1 allows the outside air introduced into the garment on the back side to circulate smoothly toward the neck of the wearer H, preventing a loss of the cooling efficiency of the outside air introduced into the garment.

[0072] Furthermore, in the inner spacer 1 of Example 1, the width W3 of the central connecting portion 22 is shorter at the upper portion than at the lower portion in the body length direction L. Therefore, the inner spacer 1 of Example 1 widens the inlet side for outside air that flows along the central connecting portion 22, making it possible to take in a large amount of outside air between the left back-side cushion portion 21a and the right back-side cushion portion 21b.

[0073] The inner spacer of the present invention has been described above based on Example 1, but the specific configuration is not limited to Example 1, and design changes and additions are permitted as long as they do not deviate from the gist of the invention according to each claim.

[0074] In the inner spacer 1 of Example 1, an example has been shown in which the connection position R between the upper end portion 10a of the front body portion 10 and the upper end portion 20a of the back body portion 20 is shifted forward with respect to the shoulder ridge line r of the wearer H. However, the location of the connection position R is not limited to this. As long as the connection position R does not overlap with the shoulder ridge line r of the wearer H, the connection position R may be shifted backward with respect to the shoulder ridge line r. In this case, the shoulders of the wearer H are covered by the upper cushion portion 11 of the front body portion 10.

[0075] In the inner spacer 1 of Example 1, an example is shown in which the connecting portions 13 have both end portions 13b, 13c in the body width direction W positioned higher than the central portion 13a in the body width direction W. However, the extending direction of the connecting portions 13 is not limited to this, and for example, the central portion 13a in the body width direction W and both end portions 13b, 13c in the body width direction W may be set to the same height (inclination angle θ = zero°). Furthermore, the connecting portions 13 may have both end portions 13b, 13c in the body width direction W positioned lower than the central portion 13a in the body width direction W (inclination angle θ = negative value).

[0076] In the inner spacer 1 of Example 1, the front body 10 is divided into left and right halves at the center in the width direction W. However, the inner spacer 1 may be a pullover type in which the front body 10 is not divided into left and right halves.

[0077] Furthermore, in the inner spacer 1 of Example 1, an example has been shown in which the connecting portion 13 is thinner than the upper cushion portion 11 and the lower cushion portion 12 and is recessed relative to the front and back surfaces of the inner spacer 1. However, the connecting portion 13 does not necessarily have to be thinner as long as it has lower rigidity than the upper cushion portion 11 and the lower cushion portion 12. That is, for example, a cushion material 3 softer than the cushion material 3 constituting the upper cushion portion 11 and the lower cushion portion 12 may be disposed in the connecting portion 13.

[0078] The inner spacer 1 of Example 1 is worn independently (separately) from clothing such as fan-equipped clothing or general work clothes. That is, the wearer puts on the inner spacer 1 of Example 1 and then puts on the clothing over it. However, an engaging device such as a belt or snap button may be provided on the inside of the clothing (for example, on the inside of the shoulder), and an engaging device that detachably engages with the engaging device provided on the clothing may be provided on the inner spacer 1 so that the inner spacer 1 can be connected to the clothing. When the inner spacer 1 is connected to the clothing, the position of the inner spacer 1 is fixed relative to the clothing, further preventing the inner spacer 1 from shifting position during work or when falling. Furthermore, by connecting the inner spacer 1 to the clothing before putting on the clothing, the wearer can put on and take off the clothing and the inner spacer 1 at the same time. [Explanation of symbols]

[0079] 1 inner spacer 4 Neckline 10 Front 11 Upper cushion part 12 Lower cushion part 13 Connecting part 20 Back 21 Back cushion section 22 Central connection part 100 Full harness type safety belt 101 Shoulder belt 103 Chest belt 104 Belt loop

Claims

1. An inner spacer is worn inside a garment when a full harness type safety belt is worn on the outside of the garment, the full harness type safety belt having a pair of shoulder belts hung on the left and right shoulders of a wearer, a pair of thigh belts into which the left and right legs of the wearer are inserted, and a chest belt connecting the pair of shoulder belts together in front of the wearer's chest, The garment comprises a front body covering the chest of the wearer and a back body covering the back of the wearer, The front body includes an elastically deformable upper cushion portion disposed at an upper portion thereof and defining a neckline; a lower cushion portion that is elastically deformable and disposed at a lower portion; a connecting portion disposed between the upper cushion portion and the lower cushion portion to connect them and extending in the body width direction, The connecting portion has lower rigidity than the upper cushion portion and the lower cushion portion, and is located below the neckline. An inner spacer characterized by:

2. 2. The inner spacer according to claim 1, The connecting portions are located higher on both sides in the body width direction than on the center portion in the body width direction. An inner spacer characterized by:

3. The inner spacer according to claim 1 or 2, The thickness of the connecting portion is thinner than the thickness of the upper cushion portion and the lower cushion portion. An inner spacer characterized by:

4. The inner spacer according to claim 1 or 2, a connecting position between an upper end of the front body and an upper end of the back body is shifted to either the front side or the back side with respect to a ridge line of the shoulder of the wearer; The front body or the back body has an elastically deformable cushion portion that covers at least the shoulders when worn. An inner spacer characterized by:

5. In the inner spacer described in claim 1 or claim 2, The back body has a central connecting part disposed in the center in the body width direction, a left back cushion part located on the left side of the central connecting part and extending over the entire length in the body length direction, and a right back cushion part located on the right side of the central connecting part and extending over the entire length in the body length direction, the central connecting portion connects the left back-side cushion portion and the right back-side cushion portion, and is set to a thickness thinner than the thicknesses of the left back-side cushion portion and the right back-side cushion portion, The length of the central connecting portion in the width direction is shorter at an upper portion than at a lower portion in the length direction. An inner spacer characterized by:

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