pants

Abstract

To provide trousers that suppress discomfort when bending forward and reduce strain on the lower back in a bent-over posture without being conspicuous. [Solution] The waist portion 20, formed at the upper end of the trouser body and tightened by a belt, surrounds the pelvis 200 at the height of the anterior superior iliac spines 202a and 202b, and has an elastic belt 24 to adjust the length in the waist direction. The front region α of the waist portion 20 on the abdominal side 101 of the wearer 100 has a rigidity of 25.7 mN or more, measured in accordance with the Gaarle method specified in JIS L1096 (2010), and is set to a width of 4.0 cm or more and 13.0 cm or less, and its thickness T1 is set to be thicker than the rear region β on the back side 102 of the wearer 100, and the left side region γ1 and right side region γ2 between the front region α and the rear region β, and is set to be less than 14.0 mm.

Description

Technical Field

[0001] The present disclosure relates to trousers worn by a wearer on the lower body.

Background Art

[0002] Conventionally, for the purpose of preventing and reducing low back pain, trousers with a dedicated low back pain protection belt (low back pain prevention belt) fixed to the waist part of the trousers are known (for example, see Patent Document 1). Also, trousers are known in which a general belt such as a work belt for preventing the trousers from slipping down is used to tighten the waist part, thereby obtaining a protective effect on the waist (for example, see Patent Document 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, since the low back pain protection belt has a different shape from a general belt, in conventional trousers with a low back pain protection belt, the low back pain protection belt fixed to the waist part is conspicuous. Therefore, trousers with a low back pain protection belt have a problem that they look bad and discourage the desire to wear them. On the other hand, in trousers in which a protective effect on the waist can be obtained by tightening the waist part with a general belt, the waist can be protected inconspicuously, but the force to support the wearer's torso from below when taking a forward bending posture is small. Therefore, such trousers have a small effect of reducing the burden on the waist during a forward bending posture, and it is difficult to achieve sufficient waist protection. Furthermore, when the wearer takes a forward bending posture, the waist part may dig into or compress the abdomen, hinder the wearer's movement, and cause discomfort to the wearer.

[0005] This disclosure addresses the above-mentioned issues and aims to provide trousers that suppress discomfort when bending forward and reduce strain on the lower back in a bent-over posture without being conspicuous. [Means for solving the problem]

[0006] To achieve the above objective, the present disclosure provides trousers comprising a trouser body and a waist portion formed at the upper end of the trouser body and fastened by a belt, wherein the waist portion surrounds the wearer's pelvis at the position of the anterior superior iliac spine and has a dimension adjustment portion for adjusting the length in the waist direction, and the portion of the waist portion facing the wearer's abdomen is defined as the front region, the portion facing the wearer's back is defined as the rear region, and the area between the front region and the rear region is defined as the side region, wherein the front region has a rigidity of 25.7 mN or more as measured in accordance with the Gaarle method specified in JIS L1096 (2010), a width set to 4.0 cm or more and 13.0 cm or less, and a thickness set to be thicker than the rear region and the side region but less than 14.0 mm. [Effects of the Invention]

[0007] As a result, the trousers of this disclosure can suppress discomfort when bending forward and reduce the burden on the lower back when bending forward without being conspicuous. [Brief explanation of the drawing]

[0008] [Figure 1] This is a front view showing the appearance of the trousers according to Embodiment 1. [Figure 2] This is an explanatory diagram showing an example of a belt used in the trousers of Embodiment 1. [Figure 3] This is a schematic diagram of the AA section in Figure 1. [Figure 4] This is an explanatory diagram showing the positional relationship between the trousers and the pelvis in Embodiment 1. [Figure 5] This is a schematic diagram of the BB cross section in Figure 4. [Figure 6] This is a front view showing the trousers of Embodiment 1 with the front open. [Figure 7] This is a table showing the results of Verification Test 1. [Figure 8] This is a table showing the results of Verification Test 2. [Figure 9] This is a rear view showing the appearance of the pants of the modified example [Figure 10] This is a schematic diagram of the C-C cross section in FIG. 9.

Mode for Carrying Out the Invention

[0009] The mode for carrying out the pants of the present disclosure will be described as follows based on the drawings. In the following description, terms such as "up and down", "left and right", "front and back", "height", "waist circumference direction", etc. are used based on the wearer 100 wearing the pants 1.

[0010] As shown in FIG. 1, the pants 1 of Embodiment 1 are long pants worn by the wearer 100 on the lower body. The pants 1 are formed of a fabric such as a cloth or a non-woven fabric made of natural fibers such as cotton or chemical fibers such as nylon and polyester. The fabric forming the pants 1 may have any properties such as stretchability, breathability, flame retardancy, water repellency, etc.

[0011] The pants 1 include a pants body 10 and a waist portion 20 formed at the upper end of the pants body 10.

[0012] The pants body 10 has tubular left leg portions 11a and right leg portions 11b that cover the left and right legs of the wearer 100 respectively, and a body portion 12 that covers the lower abdomen and buttocks of the wearer 100. Here, the pants body 10 is formed in a front opening in which the center of the front side of the body portion 12 is divided left and right, and can be opened and closed by a hidden fastener (not shown).

[0013] In addition, the pants body 10 is formed by sewing together the front body and the back body. The pants body 10 may be provided with a gusset that passes from the hem of the left leg portion 11a through the crotch to the hem of the right leg portion 11b between the front body and the back body, and may be three-dimensional sewing. <000 Furthermore, the length in the vertical direction from the crotch of the left leg part 11a and the right leg part 11b to the lower end of the waist part 20 (hereinafter referred to as "trunk length H1") of the pants body 10 is shorter (shallower) than that of general work pants etc. (hereinafter referred to as "ordinary pants") worn at factories, construction sites, etc. Note that "ordinary pants" are pants whose central position in the vertical direction of the waist part 20 is at a position higher (upper side) than the anterior superior iliac spines 202a and 202b when worn. Also, for ordinary pants, the thickness and the length (width) in the vertical direction of the waist part 20 are constant throughout the circumference. The thickness of the waist part 20 of ordinary pants is approximately 1.8 mm or more and 2.2 mm or less. Furthermore, the length (width) in the vertical direction of the waist part 20 of ordinary pants is approximately 3.5 cm or more and 4.0 cm or less.

[0015] Note that in the pants 1, the length (width) in the vertical direction of the waist part 20 is formed to be longer than that of ordinary pants. For this reason, the length in the vertical direction of the upper thigh H2 is approximately the same as that of ordinary pants. Note that "upper thigh H2" is the portion from the crotch of the left leg part 11a and the right leg part 11b to the upper end of the waist part 20.

[0016] The waist part 20 is formed at the upper end of the trunk part 12 of the pants body 10. The waist part 20 is tightened by a belt B (see Fig. 2) that is detachably attached.

[0017] Here, as shown in Fig. 3, the waist part 20 is formed by sandwiching a core material S composed of, for example, a belt core 22, a punch core 23, etc. inside a belt cloth 21 folded in half, and sewing the belt cloth 21 to the upper end of the trunk part 12. Note that it is common to use the same fabric as the fabric forming the pants body 10 for the belt cloth 21, but different fabrics may also be used. Furthermore, an adhesive core may be attached inside the belt cloth 21. Also, as will be described later, the core material S is composed of different materials depending on the region of the waist part 20. The core material S may be fixed to the belt cloth 21 or may not be fixed.

[0018] The belt B that tightens the waist area 20 is a general-purpose belt intended to prevent the trousers 1 from slipping down when worn. Ideally, belt B should be a so-called work belt, as shown in Figure 2, with a vertical length (hereinafter referred to as "width W3") of approximately 3.0 cm to 4.0 cm. Work belts generally have a constant width W3 throughout their entire length and are more durable and functional than belts intended for decoration. By using a work belt, it is possible not only to prevent the trousers 1 from slipping down, but also to sufficiently increase the abdominal pressure of the wearer 100 when the waist area 20 is tightened.

[0019] Furthermore, multiple belt loops 13 are provided on the outer surface of the waist portion 20 at predetermined intervals, through which the belt B is passed. Here, the upper end of the belt loop 13 is fixed near the upper edge of the waist portion 20, and the lower end is fixed near the lower edge of the waist portion 20. The belt B that tightens the waist portion 20 is attached to the waist portion 20 by passing it through the belt loops 13. In other words, the trousers 1 cannot accommodate a belt B wider than the vertical length of the belt loops 13 when attached to the waist portion 20.

[0020] Ideally, belt B should be attached to the vertical center of the waist portion 20. However, if the width W3 of belt B is too narrow, or the vertical length of belt loop 13 is too long, and the vertical length of belt loop 13 is too large relative to the width W3 of belt B, belt B may shift upward or downward from the vertical center of the waist portion 20. For this reason, a portion of belt loop 13 may be sewn to the waist portion 20 to match the width W3 of belt B being used. Alternatively, belt loop 13 may be fixed to the waist portion 20 in advance, either shifted upward or downward.

[0021] Furthermore, in trousers 1, because the torso length H1 of the trouser body 10 is shallower than that of ordinary trousers, the waist portion 20, as shown in Figure 4, faces the left and right anterior superior iliac spines 202a and 202b of the wearer 100 when viewed along the front-to-back direction while the trousers 1 are being worn. In other words, the waist portion 20 surrounds the wearer 100's pelvis 200 at the height (vertical position) of the anterior superior iliac spines 202a and 202b. Therefore, when the wearer 100 puts on trousers 1 and fastens belt B, the pelvis 200 is tightened via the waist portion 20 at the height of the anterior superior iliac spines 202a and 202b. The "anterior superior iliac spines 202a and 202b" are the most anteriorly protruding parts of the ilium 201 that make up the pelvis 200.

[0022] In the following explanation, as shown in Figure 5, the area of ​​the waist portion 20 on the abdominal side 101 of the wearer 100 when the trousers 1 are worn will be referred to as the front region α, and the area on the back side 102 of the wearer 100 will be referred to as the rear region β. Furthermore, the area between the front region α and the rear region β, that is, the area on the flank side 103 of the wearer 100, will be referred to as the left side region γ1 (lateral region) and the right side region γ2 (lateral region).

[0023] The anterior region α includes at least the area from the left anterior superior iliac spine 202a to the right anterior superior iliac spine 202b of the wearer 100 (hereinafter referred to as the "inter-anterior superior iliac spine region"), and the region facing it in the anterior-posterior direction. The length of the anterior region α in the waist direction is such that, when the wearer 100 wearing the trousers 1 is viewed from the abdominal side 101 (front) in the anterior-posterior direction, it protrudes slightly laterally from the inter-anterior superior iliac spine region. Therefore, the length of the anterior region α in the waist direction is such that it covers the entire area of ​​the inter-anterior superior iliac spine region in the waist direction (see Figure 4). Furthermore, the vertical center of the anterior region α is located at approximately the same height as the anterior superior iliac spines 202a and 202b of the wearer 100 when the trousers 1 are worn.

[0024] The posterior region β includes at least the region opposite the sacrum 203 that constitutes the pelvis 200 (see Figure 5). The length of the posterior region β in the waist direction is the length opposite the sacrum 203 and a portion of the left and right iliac bones 201 when the wearer 100 wearing the trousers 1 is viewed from the back 102 side (posterior) along the anterior-posterior direction. In other words, the length of the posterior region β in the waist direction is the length that covers the entire waist area of ​​the sacrum 203 (see Figure 4).

[0025] Furthermore, the central part of the front region α in the waist direction and the central part of the rear region β in the waist direction coincide when the trousers 1 are viewed from the front, and when the trousers 1 are worn, they face the center of the wearer 100 in the width direction (position of the spine). In addition, the left side region γ1 faces the left side of the wearer 100's flank 103 when the trousers 1 are worn. The right side region γ2 faces the right side of the wearer 100's flank 103 when the trousers 1 are worn.

[0026] The front region α is formed as a front opening divided into left and right sections (see Figure 6). In the front region α, as shown in an enlarged view in Figure 5, a core material S is used in which a punch core 23 is superimposed on a belt core 22. The belt core 22 is made of nylon, polyester, cotton, etc., and is a strip-shaped core that is more rigid than the trouser body 10 and the belt fabric 21. The punch core 23 is made of a strip-shaped nonwoven fabric or woven fabric such as rayon, polyester, or nylon, and is a core that is less rigid than the belt core 22. In the front region α, both the belt core 22 and the punch core 23 are fixed to the belt fabric 21 by sewing or adhesive only at both ends in the waist direction. However, the belt core 22 and the punch core 23 may be fixed to the belt fabric 21 over the entire area.

[0027] The front region α, as shown in Figures 5 and 6, has an inner piece 31, an outer piece 32, and an engaging member 33.

[0028] The medial flap 31 is a portion that extends from the anterior end of the right-side region γ2 along the circumference of the torso. The medial flap 31 extends to the vicinity of the left-side region γ1. Therefore, when the trousers 1 are worn, the medial flap 31 faces both the left and right anterior superior iliac spines 202a and 202b when viewed along the anterior-posterior direction.

[0029] The lateral piece 32 extends from the anterior end of the left-side region γ1 along the circumference of the torso and overlaps with the medial piece 31. The lateral piece 32 extends to the vicinity of the right-side region γ2. Therefore, when the trousers 1 are worn, the lateral piece 32 faces both the left and right anterior superior iliac spines 202a and 202b when viewed along the anterior-posterior direction. Here, the size (circumference and vertical length) of the medial piece 31 and the lateral piece 32 are the same or approximately the same, and the entire area of ​​the lateral piece 32 overlaps the entire area of ​​the medial piece 31.

[0030] The engaging member 33 is provided between the inner piece 31 and the outer piece 32, and detachably engages the inner piece 31 and the outer piece 32. The engaging member 33 is made of hook-and-loop fastener and has a female fastener 33a provided on the inner piece 31 and a male fastener 33b provided on the outer piece 32. The engaging member 33 is provided over almost the entire area of ​​the inner piece 31 and the outer piece 32.

[0031] Furthermore, in the front region α, the rigidity is set to 25.7 mN or more when the inner piece 31 and the outer piece 32 overlap and the inner piece 31 and the outer piece 32 are engaged via the engaging member 33 (hereinafter referred to as the "wearing state"). If the rigidity of the front region α is 25.7 mN or more, it is possible to suppress the bending toward the inside (center of the body) when the waist portion 20 is tightened by the belt B, and to suppress the waist portion 20 from digging in. Here, the rigidity of the front region α is set to 1119.6 mN in the wearing state. In addition, in this specification, unless otherwise specified, "rigidity" refers to the rigidity measured in accordance with the Gahl method specified in JIS L1096 (2010).

[0032] Furthermore, the rigidity of the front region α is limited to the degree that the waist portion 20 can conform to the wearer 100's body without causing the wearer 100 to feel pain upon pressure. The rigidity of "the degree that the waist portion 20 can conform to the wearer 100's body without causing pain upon pressure" is, for example, defined as a test piece having a cross-sectional shape equivalent to that of the waist portion 20 with a rigidity of 400 g / cm². 2 The bending stiffness of 0.268 N·m is the bending stiffness when subjected to pressure and deflecting by 3 cm at a point 7.5 cm away from the support point. 2 The stiffness and softness will satisfy the following conditions.

[0033] Furthermore, the width W1 of the front region α when worn (see Figure 4) is set to 4.0 cm or more and 13.0 cm or less, preferably 5.5 cm or more and 13.0 cm or less. Here, the width W1 of the front region α is set to 5.5 cm when worn. Note that the width W1 is the vertical length of the front region α. ​​The width W1 is constant or approximately constant over the entire length of the front region α in the waist direction.

[0034] Furthermore, the thickness T1 (see Figure 5) of the anterior region α in the worn state is set to be thicker than the general part of the posterior region β, the left side region γ1, and the right side region γ2, and less than 14.0 mm, preferably between 7.0 mm and less than 8.0 mm. Here, the thickness T1 of the anterior region α is set to 7.0 mm in the worn state. Note that "general part of the posterior region β" refers to the part of the posterior region β where the compression portion 34, described later, is not provided.

[0035] The rear region β extends along the waist direction without being divided. Also, in the rear region β, as shown in the enlarged view in Figure 5, a core material S is used in which a punch core 23 is superimposed on a belt core 22, similar to the front region α. ​​The belt core 22 and punch core 23 used in the rear region β may be made of the same material as the belt core 22 and punch core 23 used in the front region α, or they may be made of different materials. In the rear region β as well, both the belt core 22 and punch core 23 are fixed to the belt fabric 21 by sewing or adhesive only at both ends in the waist direction.

[0036] Furthermore, the posterior region β is set such that the rigidity / softness of at least the portion facing the sacrum 203 is 25.7 mN or greater, and in this case, it is set to 33.4 mN.

[0037] Furthermore, the width of the rear region β may be set to the same length as the width W1 of the front region α, or it may be set to a different length from the width W1 of the front region α. ​​Here, the width of the rear region β is set to the same length as the width W1 of the front region α (5.5 cm) and is constant over the entire length in the circumference direction. Also, the thickness of the general part of the rear region β should be at least thinner than the thickness T1 of the front region α. ​​Here, the thickness of the general part of the rear region β is set to 2.0 mm.

[0038] The rear region β has a compression section 34 in the center in the direction of the waist. The compression section 34 is formed by overlapping an additional belt core 22a with the inner surface of the core material S which is arranged throughout the entire rear region β. The additional belt core 22a may be made of the same material as the belt core 22 or punch core 23, or it may be made of a different material. The compression section 34 has a length L1 in the direction of the waist that is set to less than 7.4 cm, and a thickness T2 that is thicker than the general part of the rear region β and 8.0 mm or less. In this case, the compression section 34 has a length L1 that is set to 6.0 cm and a thickness T2 that is set to 7.0 mm.

[0039] The left-side region γ1 and the right-side region γ2 both extend along the waist without being divided. In both the left-side region γ1 and the right-side region γ2, a core material S consisting of a rubber belt 24 that stretches in the direction of the waist is used.

[0040] The elastic belt 24 stretches and contracts in the waist direction, thus forming a dimension adjustment section that adjusts the waist length of the waist portion 20. In other words, the waist length of the left side region γ1 and the right side region γ2 of the trousers 1 changes as the elastic belt 24 stretches and contracts. As a result, regardless of the wearer's body shape (waist measurement), the trousers 1 can be positioned so that the front region α of the waist portion 20 faces the interspinous region of the anterior superior iliac crest, and the rear region β faces the sacrum 203, when viewed from the front or back.

[0041] Furthermore, in the left-side region γ1 and the right-side region γ2, the belt fabric 21 that sandwiches the core material S, which is the rubber belt 24, is gathered. In addition, the torso portion 12 of the trouser body 10 is also gathered where the left-side region γ1 and the right-side region γ2 are sewn together. As a result, the torso portion 12 and the belt fabric 21 can follow the stretching and contracting of the rubber belt 24.

[0042] Furthermore, the elastic belt 24 has both ends in the direction of the waist sewn to the belt fabric 21 and does not overlap with the core material S consisting of the belt core 22 and punch core 23. In other words, in the waist area 20, the core material S consisting of the belt core 22 and punch core 23 and the core material S consisting of the elastic belt 24 are arranged alternately along the direction of the wearer's waist 100.

[0043] Furthermore, the rigidity of the left-side region γ1 and the right-side region γ2 can be freely set, and they may be lower or higher than the rigidity of the front-side region α and the rear-side region β. Also, the width of the left-side region γ1 and the right-side region γ2 can be freely set, and may be similar to, for example, the width of the front-side region α or the rear-side region β.

[0044] Furthermore, the thicknesses of the left-side region γ1 and the right-side region γ2 only need to be at least thinner than the anterior region α, and can be freely set.

[0045] The function of the trousers 1 in Embodiment 1 is described as follows.

[0046] Generally, when abdominal pressure increases in humans, the abdominal cavity acts like a pillar, strengthening the protection of the lumbar spine and reducing the burden on the lower back. Furthermore, increased abdominal pressure strengthens the abdominal muscles, enabling the maintenance of correct posture. Therefore, it is conceivable that tightening belt B around a person's torso would increase abdominal pressure and reduce the burden on the lower back.

[0047] By the way, when belt B is tightened around a person's body (around the waist), the pressure is not applied uniformly to all parts of the waist. The pressure distribution due to the tightening force of belt B changes depending on the external shape of the person's waist.

[0048] Here, the pressure on each body part around a person's torso (such as the abdomen 101 and flanks 103) can be approximately determined by applying equation (1) below and using equation (2) below. Equation (1) is a formula for calculating clothing pressure from the tensile load value of the clothing fabric. Equation (2) is a formula for calculating the pressure on body parts by assuming that the radius of curvature in the vertical direction is zero.

number

number

[0049] In other words, as is clear from equation (2), the pressure exerted on a body part when belt B is tightened is inversely proportional to the horizontal radius of curvature of that body part, even if the tightening force of belt B is the same.

[0050] Furthermore, the horizontal cross-sectional shape of the human body at the pelvic position can be considered to be roughly an ellipse, flattened on the abdominal 101 side and the back 102 side (see Figure 5), and the radius of curvature of the abdomen 101 can be considered to be larger than the radius of curvature of the flank 103. For this reason, when the human pelvis 200 is tightened with belt B, the pressure on the abdomen 101 is considered to be less than the pressure on the flank 103.

[0051] In contrast, in trousers 1, the waist portion 20 surrounds the pelvis 200 at the positions of the anterior superior iliac spines 202a and 202b, and the left side region γ1 and the right side region γ2 have elastic belts 24 which are dimension adjustment parts for adjusting the circumference of the waist. The front region α is set to a thickness T1 of 7.0 mm, which is thicker than the general portion of the rear region β and the thicknesses of the left side region γ1 and the right side region γ2.

[0052] Therefore, when the trousers 1 are worn, the elastic belt 24 stretches, and the waist portion 20 can conform to the wearer's body without any gaps. Furthermore, the trousers 1 can reduce the radius of curvature of the wearer's abdomen 101 around the pelvis, including the clothing, compared to when wearing ordinary trousers where the thickness of the waist portion 20 is constant around the entire circumference.

[0053] Furthermore, it has been found that if the waist portion 20 has a rigidity of 25.7 mN or more, even when tightened by belt B, it can suppress bending inward (towards the center of the body) and prevent it from digging into the wearer's body 100.

[0054] In contrast, the front region α of the trousers 1 is set to a rigidity of 1119.6 mN. This prevents the front region α from bending when the waist portion 20 of the trousers 1 is tightened by the belt B, thus making it less likely for the front region α to dig into the abdomen 101.

[0055] As a result, when the waist portion 20 of the trousers 1 is tightened by the belt B, the pressure on the wearer's abdomen 101 can be increased compared to when the trousers are worn normally with the belt B, even if the tightening force of the belt B is the same. Furthermore, the trousers 1 can increase the abdominal pressure of the wearer's abdomen 100 to counteract the pressure on the abdomen 101.

[0056] Furthermore, the thickness T1 of the front region α of the trousers 1 is greater than the general portion of the rear region β, as well as the thicknesses of the left side region γ1 and the right side region γ2. Therefore, the trousers 1 can enhance the force that supports the wearer's torso from below when the wearer 100 assumes a bent-over posture. Thus, the trousers 1 can reduce the burden on the wearer's lower back in a bent-over posture without the need for a conspicuous lumbar support belt.

[0057] Verification Test 1, which verifies the effect of the trousers 1 of Embodiment 1 on reducing the burden on the lower back in a bent-over posture, is as follows.

[0058] The subjects in Verification Test 1 were eight adult males. In Verification Test 1, electrodes were attached to the subjects' lumbar region (5 cm to the right of the space between the second and third lumbar vertebrae) before they put on the prescribed clothing. The subjects then performed a trial in which they lifted a 20 kg weight placed on a platform at waist height to a height of approximately 1 cm while standing with their trunk flexed at a 30° angle, and held it for 5 seconds. The subjects repeated the above trial three times with a 1-minute rest in between.

[0059] In Verification Test 1, the subjects were dressed in two ways: wearing the trousers 1 of Embodiment 1 with belt B attached, and wearing the trousers of the First Comparative Example without belt B. Hereafter, the state of wearing trousers 1 with belt B will be referred to as "Wearing trousers 1 with belt," and the state of wearing the trousers of the First Comparative Example without belt B will be referred to as "Wearing comparative example trousers without belt."

[0060] Here, "Pants 1" meets the following requirements: The waist portion 20 surrounds the pelvis 200 at the level of the anterior superior iliac spines 202a and 202b. • In the waist portion 20, the vertical center of the anterior region α is approximately opposite to the anterior superior iliac spines 202a and 202b. The waist portion 20 is tightened by belt B. (When belt B is tightened, it allows the pelvis 200 to be tightened at the positions of the anterior superior iliac spines 202a and 202b via the waist portion 20.) The waist portion 20 has a rigidity of 25.7 mN or more throughout its entire circumference, measured in accordance with the Gaal method specified in JIS L1096 (2010), and the rigidity of the front region α in the worn state is 1119.6 mN. The waist portion 20 has a front area α width W1 of 5.5 cm when worn. • The waist portion 20 has a thickness T1 of 7.0 mm in the front region α when worn. The rear region β of the waist portion 20 has a width of 5.5 cm. The rear region β of the waist portion 20 has a general thickness of 2.0 mm and is provided with a compression portion 34. The compression area 34 has a length L1 in the circumference direction of the torso of 6.0 cm and a thickness T2 of 7.0 mm.

[0061] The "trousers of the first comparative example" meet the following requirements: The waist area surrounds the pelvis 200 at the level of the anterior superior iliac spines 202a and 202b. • In the waist region, the vertical center of the anterior region is approximately opposite to the anterior superior iliac spines 202a and 202b. The waist section has a rigidity of less than 25.7 mN throughout its entire circumference, as measured in accordance with the Gaal method specified in JIS L1096 (2010). The waist area has a width of 4.0 cm in the front region. The waistband has a thickness of 2.0 mm around its entire circumference.

[0062] The "Belt B" used in Verification Test 1 is a polypropylene fabric belt with a buckle that has very little elasticity. In Verification Test 1, Belt B with a width W3 of approximately 32 mm and a thickness T3 of 2.5 mm, as shown in Figure 2, was used. Furthermore, "wearing Belt B" means that the subject tightens the belt so that the belt length is shortened by 5% from the state where the belt length is approximately the same as their waist measurement (normal tightness).

[0063] In Verification Test 1, the verifiers had subjects perform the above trials, measured electromyography (EMG) during the trials, and calculated the standardized EMG of the EMG measured over three trials. A smaller EMG value indicates less strain on the lower back and a higher lumbar protection effect. Furthermore, the verifiers calculated the reduction rate of EMG measured when wearing "Pants 1 with a belt" using the EMG measured when wearing "Comparative Example: Pants worn, no belt" as a baseline. The results of Verification Test 1 are shown in Figure 7.

[0064] As shown in Figure 7, when wearing trousers 1 with a belt, the reduction rate of electromyography (EMG) compared to the comparative example of wearing trousers without a belt was a minimum of 2.1%, a maximum of 20.9%, and an average of 12.0%. In other words, the results of the verification test showed that trousers 1 of Embodiment 1 can reduce the burden on the lower back in a forward-bending posture when wearing belt B compared to the comparative example of wearing trousers without a belt.

[0065] Furthermore, in the case of trousers 1, it is desirable to use a general-purpose work belt as belt B in order to sufficiently increase the abdominal pressure of the wearer 100. Here, "general-purpose work belt" refers to a belt with a vertical width of approximately 3.0 cm to 4.0 cm.

[0066] However, if the width W1 of the front region α is less than 4.0 cm, a belt B with a vertical length of approximately 4.0 cm may not pass through the belt loop 13 provided on the waist portion 20. In other words, if the width W1 of the front region α is set to less than 4.0 cm, it may not be possible to tighten the waist portion 20 using a general work belt capable of sufficiently increasing the abdominal pressure of the wearer 100.

[0067] Furthermore, even if the width W1 of the front region α is less than 4.0 cm, if the vertical length of belt B is narrower than the vertical length (width) of the waist portion 20, belt B can pass through the belt loop 13 and tighten around the waist portion 20. However, in the case of belt B that can pass through the belt loop 13 even if the width W1 of the front region α is less than 4.0 cm, when belt B is tightened, the tightening force of belt B is concentrated, and the waist portion 20 is more likely to dig into the abdomen 101 of the wearer 100. Also, if the vertical length of belt B is too narrow, it is difficult for the waist portion 20 to adequately support the torso of the wearer 100 in a bent-over posture from below. In other words, when the width W1 of the front region α is less than 4.0 cm, it becomes difficult to obtain sufficient relief from the burden on the lower back when in a bent-over posture.

[0068] Furthermore, when the wearer 100 sits in a chair, squats, or bends forward, the hip joint 205 moves back and forth. Therefore, if the waist portion 20 covers the hip joint 205, there is a risk that it will hinder the back-and-forth movement of the hip joint 205. On the other hand, in the human body, the vertical distance from the anterior superior iliac spines 202a and 202b to the hip joint 205 is approximately 6.5 cm. Here, when the trousers 1 are worn, the vertical center of the front region α is positioned at approximately the same height as the anterior superior iliac spines 202a and 202b of the wearer 100. Therefore, if the width W1 of the front region α exceeds 13.0 cm, the waist portion 20 will press down on the hip joint 205, greatly hindering the wearer 100's movements, including bending forward.

[0069] In contrast, in trousers 1, the width W1 of the front region α is set to 4.0 cm or more and 13.0 cm or less. Therefore, trousers 1 allow the wearing of a belt B (a general work belt) which provides sufficient relief from the burden on the waist, while minimizing interference with the wearer's movements 100. Thus, trousers 1 reduce the burden on the waist without being conspicuous and suppress discomfort for the wearer 100 when bending forward.

[0070] Furthermore, tilting or twisting of the sacroiliac joint 204 in the anterior-posterior direction can cause lower back pain. Also, in the human body, the anterior superior iliac spines 202a and 202b are at approximately the same height as the vertical center of the sacroiliac joint 204, and the vertical length of the sacroiliac joint 204 is approximately 5.5 cm.

[0071] In contrast, the trousers 1 have a waistband 20 that surrounds the wearer's pelvis 200 at the height of the anterior superior iliac spines 202a and 202b. Therefore, if the width W1 of the front region α is 5.5 cm or more, the trousers 1 can cover the sacroiliac joint 204 with the front region α of the waistband 20. In other words, by setting the width W1 of the front region α of the trousers 1 to between 5.5 cm and 13.0 cm, the tilting and twisting of the sacroiliac joint 204 when the wearer 100 moves can be suppressed. As a result, the trousers 1 can suppress discomfort in a bent-over posture and further enhance the effect of reducing the burden on the lower back in a bent-over posture.

[0072] Furthermore, if we consider the horizontal cross-sectional shape of the human body at the pelvic position to be elliptical, it has been found that, based on the anterior-posterior-lateral ratio, the thickness T1 of the anterior region α increases in direct proportion to abdominal pressure until the thickness T1 reaches 50 mm. In other words, in order to increase abdominal pressure and reduce the burden on the lumbar region, it is best for the thickness T1 of the anterior region α to be as thick as possible until it reaches 50 mm.

[0073] However, the thicker the anterior region α becomes (the greater the thickness), the more the anterior region α gets in the way, making it difficult for the wearer 100 to bend over or move. Moreover, if the abdominal pressure becomes too high, the pressure on the abdomen 101 becomes too strong, making the wearer 100 uncomfortable. In other words, the thickness T1 of the anterior region α needs to be set to a thickness that balances increased abdominal pressure with ease of movement.

[0074] Therefore, we conducted Verification Test 2 to examine the relationship between the thickness T1 of the anterior region α and the discomfort experienced by wearer 100. Verification Test 2 is as follows.

[0075] The subjects in Verification Test 2 were three adult males. In Verification Test 2, the subjects wore the trousers of the Second Comparative Example and belt B. The "belt B" used in Verification Test 2 was the same belt as the belt B used in Verification Test 1. The subjects then placed one verification sheet between the front area of ​​their waist and belt B.

[0076] Here, the "trousers of the second comparative example" meet the following requirements: The waist area surrounds the pelvis 200 at the level of the anterior superior iliac spines 202a and 202b. • In the waist region, the vertical center of the anterior region is approximately opposite to the anterior superior iliac spines 202a and 202b. The waist area is tightened by belt B. (When belt B is tightened, it allows the pelvis 200 to be tightened at the positions of the anterior superior iliac spines 202a and 202b via the waist area.) The waist section has a rigidity of 25.7 mN or more throughout its entire circumference, as measured in accordance with the Gaal method specified in JIS L1096 (2010). The waistband has a width of 6.0 cm around its entire circumference. The waistband has a thickness of 2.0 mm around its entire circumference.

[0077] Furthermore, the verification sheet used in Verification Test 2 is a sheet made of polyvinyl chloride. The dimensions of the verification sheet are 6 cm wide, 15 cm long in the waist direction, and 2.0 mm thick. The rigidity of one verification sheet is 98.6 mN. When two verification sheets are stacked, the thickness is 4.0 mm and the rigidity is 553.6 mN. When three verification sheets are stacked, the thickness is 6.0 mm and the rigidity is 1619.1 mN. When four verification sheets are stacked, the thickness is 8.0 mm and the rigidity is 3212.1 mN. Thus, the rigidity of the verification sheet is 25.7 mN or higher, and the rigidity increases as the number of stacked sheets increases. For example, if three verification sheets are placed between the front area of ​​the trousers and belt B in the second comparative example, the thickness of the front area of ​​the waist will be 8.0 mm. Furthermore, when the three verification sheets are placed between the trousers of the second comparative example, the fit is said to be almost the same as that of trousers 1, in which the thickness T1 of the front region α is set to 8.0 mm.

[0078] Each time a verification sheet is placed between the belts, the subject readjusts belt B from a state where the belt length is approximately the same as their waist measurement (normal tightness) to a state where the belt length is further reduced by 5%. After readjusting belt B, the subject performs a predetermined set of actions. The actions performed by each subject in Verification Test 2 were four types: standing forward bend, squatting, seated position, and one-knee forward bend. "Standing forward bend" is the action of bending forward from a standing position with both knees straight. "Squatting" is the action of squatting with both knees bent. "Seated position" is the action of sitting in a chair. "One-knee forward bend" is the action of bending forward from a position where one knee is on the ground.

[0079] Each participant subjectively evaluated the ease of movement on a nine-point scale after performing each action. In addition, each participant subjectively evaluated the pain caused by the pressure on the anterior region α on a six-point scale, and also subjectively evaluated the discomfort caused by the compression on the abdomen 101 on a six-point scale.

[0080] The verifiers then comprehensively evaluated the superiority or inferiority of the thickness T1 of the anterior region α by adding each subject's comments and evaluation of the operating state to the subject's subjective evaluation results. The results of Verification Test 2 are shown in Figure 8. The subjective evaluation results are the average values ​​of all subjects, with smaller numbers indicating better performance and larger numbers indicating worse performance. In the overall evaluation, "○" means good, "△" means average, and "×" means poor.

[0081] The results showed that difficulty in movement during various actions, such as standing forward bending, was gradually felt when the thickness T1 of the anterior region α was 12.0 mm (when five verification sheets were inserted), and became clearly felt when the thickness T1 of the anterior region α reached 14.0 mm (when six verification sheets were inserted). In addition, pain from the indentation of the anterior region α began to be felt when the thickness T1 of the anterior region α was 10.0 mm (when four verification sheets were inserted), and there was no sensory change even when the thickness T1 of the anterior region α exceeded 16.0 mm (when seven verification sheets were inserted). Furthermore, discomfort due to the compression of the abdomen 101 began to occur when the thickness T1 of the anterior region α was 8.0 mm (when three verification sheets were inserted), and became unbearable when the thickness T1 of the anterior region α reached 16.0 mm (when seven verification sheets were inserted).

[0082] In other words, the results of Verification Test 2 showed that the front region α began to cause discomfort due to pressure in wearer 100 when its thickness T1 reached 8.0 mm, and caused a clear restriction of movement when its thickness T1 reached 14.0 mm. To put it another way, it was shown that wearer 100 did not experience a clear restriction of movement if the thickness T1 of the front region α of trousers 1 was less than 14.0 mm.

[0083] In contrast, in trousers 1, the thickness T1 of the front region α is set to be thicker than the general part of the rear region β, the left side region γ1, and the right side region γ2, and less than 14.0 mm. Therefore, the range of the thickness T1 of the front region α is appropriately defined in trousers 1. Trousers 1 can increase abdominal pressure to reduce the burden on the lower back, and at the same time reduce discomfort and difficulty of movement caused by abdominal compression when bending forward. In other words, trousers 1 can balance increased abdominal pressure with ease of movement. As a result, trousers 1 can suppress discomfort when bending forward and reduce the burden on the lower back when bending forward.

[0084] Furthermore, from the results of Verification Test 2, it can be estimated that wearer 100 will experience almost no discomfort due to compression of the abdomen 101, even in a bent-over posture, until the thickness T1 of the front region α reaches 8.0 mm. On the other hand, as described above, the trousers 1 can increase their effect in reducing the burden on the lower back as the thickness T1 of the front region α increases, until it reaches 50 mm. Therefore, in trousers 1, the thickness T1 of the front region α is set to less than 8.0 mm, assuming that it is thicker than the general part of the rear region β, the left side region γ1, and the right side region γ2. As a result, trousers 1 can reduce the burden on the lower back in a bent-over posture without causing discomfort or difficulty in movement due to abdominal compression in that posture.

[0085] Furthermore, the trousers 1 have a front opening in which the front region α of the waist portion 20 is divided. The trousers 1 have an inner piece 31 that extends along the direction of the waist, an outer piece 32 that extends along the direction of the waist and overlaps with the inner piece 31, and an engaging member 33 that engages the inner piece 31 and the outer piece 32.

[0086] As a result, when wearing the trousers 1, the inner piece 31 and outer piece 32 are pulled taut and then engaged via the engaging member 33 to prevent them from bending. Therefore, the length of the front region α in the waist direction of the trousers 1 can be adjusted to fit the wearer's body shape 100, suppressing a feeling of pressure while allowing the front region α of the waist portion 20 to fit snugly against the abdomen 101.

[0087] In particular, in the trousers 1 of Embodiment 1, the engaging member 33 is made of hook-and-loop fastener, and the engagement position where the inner piece 31 and the outer piece 32 engage can be changed in the waist direction. This allows for fine adjustment of the waist length of the front region α of the trousers 1, and further optimizes the balance between the feeling of pressure and the tightness of the front region α.

[0088] Furthermore, in trousers 1, the rigidity of the rear region β is set to 25.7 mN or more. A compression section 34 is provided in the central part of the rear region β in the direction of the waist, with a length L1 in the direction of the waist set to less than 7.4 cm, and a thickness T2 that is thicker than the general part of the rear region β and set to 8.0 mm or less.

[0089] As a result, the trousers 1 can locally reduce the radius of curvature of the central part of the posterior region β. Therefore, when the waist portion 20 of the trousers 1 is tightened with the belt B, the tightening force of the belt B applied to the central part of the posterior region β in the direction of the waist can be increased, and the tightening pressure of the belt B can be concentrated on the sacrum 203. In addition, the trousers 1 can support the sacrum 203 upright with the compression portion 34. As a result, the trousers 1 can tilt the pelvis 200 forward, straighten the spine, and guide the wearer 100 into a correct posture. Therefore, the trousers 1 can further reduce the burden on the wearer 100's lower back.

[0090] Furthermore, on the posterior side 102 of the pelvis 200, the posterior superior iliac spines, which are gentle projections pointing backward and located at the posterior end of the iliac crest, are located side by side on either side of the sacrum 203. The distance between the left and right posterior superior iliac spines is approximately 7.4 cm. In contrast, the compression area 34 is set to have a length L1 in the waist direction of less than 7.4 cm. Therefore, the trousers 1 do not position the compression area 34 opposite the left and right posterior superior iliac spines, thus preventing discomfort caused by the compression area 34 being pressed against the posterior superior iliac spines.

[0091] Furthermore, the thickness T2 of the compression area 34 was set based on a test that verified the discomfort caused by compression on the back 102 while varying the thickness T2. Specifically, it was found that the wearer 100 begins to feel discomfort due to compression when the thickness T2 of the compression area 34 is 8.0 mm. In contrast, the trousers 1 are set so that the thickness T2 of the compression area 34 is 7.0 mm or less. Therefore, when the waist area 20 of the trousers 1 is tightened by the belt B, the discomfort caused by compression on the back 102 can be reduced.

[0092] Furthermore, the wearer 100 experiences little to no discomfort due to compression on the back 102 until the thickness T2 of the compression area 34 reaches 8.0 mm. Therefore, as long as the thickness T2 of the compression area 34 is thicker than the general area of ​​the posterior region β and less than 8.0 mm, it will not cause discomfort due to compression on the back 102.

[0093] The trousers described in this disclosure have been explained above, but changes or additions to the design are permitted as long as they do not deviate from the gist of the invention as defined in each claim of the patent claims.

[0094] For example, as shown in the modified trousers 1A in Figure 9, a space 14 may be formed in the lower torso portion 12 of the rear region β, and an elastic fabric 51 and a covering cloth 52 may be provided in the space 14.

[0095] Space 14 is formed by cutting out a predetermined area of ​​the torso 12 that covers the lower back of the wearer 100. The area cut out as space 14 is, in this case, an area that is about 1.5 to 3 times the width of the sacrum 203 in the direction of the torso, centered on the wearer 100's spine (approximately 15 cm to 30 cm), and an area that is about 1.0 to 1.5 times the vertical length of the sacrum 203 downwards from the waist 20.

[0096] Furthermore, the stretchable fabric 51 and the covering cloth 52 are layered from the inside (the side facing the wearer 100). In other words, the stretchable fabric 51 is placed on the inside and the covering cloth 52 is placed on the outside.

[0097] The stretchable fabric 51 is made of a fabric that is more stretchable (elastic) than the fabric forming the torso 12 (back panel), such as a power net fabric. Generally, power net fabric is a fine net-like woven fabric with stretch properties. Power net fabric is formed by interlacing fibers such as nylon and elastic fibers such as polyurethane.

[0098] The stretchable fabric 51 is formed in a rectangular shape with an area approximately the same as the space 14. The upper edge 51a of the stretchable fabric 51 is sewn to the lower edge of the belt fabric 21 that sandwiches the core material S (belt core 22 and punch core 23) (see Figure 9). In addition, the lower edge 51b and the left and right edges (not shown) of the stretchable fabric 51 are sewn to the body 12.

[0099] The cover cloth 52 is made of a rectangular piece of fabric whose dimensions in the waist direction are approximately equal to those of the stretchable fabric 51, and whose dimensions in the vertical direction are greater than those of the stretchable fabric 51. As shown in Figure 9, the cover cloth 52 is folded 180° in a mountain fold and a valley fold at a pair of folds 53 that extend in the waist direction, forming pleats. In other words, the cover cloth 52 is pleated. The length of the cover cloth 52 in the vertical direction is approximately equal to the length of the stretchable fabric 51 due to the folding at the folds 53. The cover cloth 52 is made of the same fabric as, for example, the torso 12 (back panel), and has lower elasticity than the stretchable fabric 51.

[0100] The cover fabric 52 is layered on the outside of the stretchable fabric 51, and its upper edge 52a is sewn together with the stretchable fabric 51 to the lower edge of the belt fabric 21 (see Figure 10). In addition, the lower edge 52b and the left and right edges 52c and 52d of the cover fabric 52 are sewn together with the stretchable fabric 51 to the torso 12 (see Figure 9).

[0101] When the stretchable fabric 51 and the cover cloth 52 are pulled in the vertical direction, the stretchable fabric 51 elastically deforms and the folds 53 of the cover cloth 52 expand, causing both to stretch vertically. However, when the folds 53 of the cover cloth 52 expand to their limit, it stops stretching vertically. Therefore, the stretchable fabric 51, which is sewn together with the cover cloth 52, cannot stretch any further, and the elongation of the stretchable fabric 51 is restricted by the cover cloth 52.

[0102] In this way, by providing the elastic fabric 51 and the covering cloth 52 on the lower torso portion 12 of the rear region β, when the wearer 100 wearing the trousers 1A assumes a squatting or sitting position, and the skin of the waist and buttocks stretches, the elastic fabric 51 and the covering cloth 52 are pulled in accordance with the stretching of the wearer's skin and stretch vertically. As a result, the trousers 1A can prevent the rear region β of the waist portion 20 from being pulled downward.

[0103] In other words, in trousers (for example, regular trousers) where the area covering the back of the waist of the trouser body 10 is not provided with elastic fabric 51 or covering cloth 52, when the wearer 100 assumes a squatting or bending posture, the skin of the waist and buttocks is stretched, and the posterior region β of the waist portion 20 is pulled downward, causing the posterior region β to slide down. On the other hand, the front region α of the waist portion 20 digs into the wearer 100's abdomen 101. As a result, the waist portion 20 is positioned at an angle to the height of the anterior superior iliac spines 202a and 202b of the pelvis 200.

[0104] However, in the modified trousers 1A, the stretchable fabric 51 stretches and the folds 53 of the covering fabric 52 widen, which can alleviate the downward pulling of the rear region β of the waist 20. As a result, in the modified trousers 1A, the rear region β hardly slips down even when the wearer 100 is in a bent-over posture. This allows the waist 20 to surround the pelvis 200 at the height of the anterior superior iliac spines 202a and 202b, regardless of the wearer's posture, thereby suppressing discomfort in a bent-over posture and enhancing the protective effect on the lumbar region in a bent-over posture.

[0105] Furthermore, since the trousers 1 have a covering fabric 52 overlaid on the outside of the stretchable fabric 51, the stretchable fabric 51 is not visible from the outside, making it difficult to discern the difference in appearance from ordinary trousers. As a result, the trousers 1 can provide waist protection without being conspicuous.

[0106] The covering cloth 52 is not necessarily required. By not providing the covering cloth 52, the trousers 1A can have improved breathability and increased elasticity of the stretchable fabric 51.

[0107] Furthermore, in the trousers 1 of Embodiment 1, an example was shown in which the front region α covers the entire area around the waist of the wearer 100 in the inter-anterior superior iliac spine region. However, the front region α only needs to be the area of ​​the waist portion 20 on the abdominal 101 side of the wearer 100, so it does not necessarily have to cover the entire area around the waist in the inter-anterior superior iliac spine region. For example, the length of the front region α in the waist direction may be such that it covers only the central part of the inter-anterior superior iliac spine region in the waist direction.

[0108] Furthermore, in the trousers 1 of Embodiment 1, an example was shown in which the rear region β covers the entire area of ​​the sacrum 203 in the torso direction. However, the rear region β only needs to be the area of ​​the waist portion 20 on the back 102 side of the wearer 100, so it does not necessarily have to cover the entire area of ​​the sacrum 203 in the torso direction. For example, the length of the rear region β in the torso direction may be such that it covers only the central part of the sacrum 203 in the torso direction.

[0109] Furthermore, in the first embodiment of the trousers 1, an example was shown in which the torso portion 12 and the front region α were formed as a front opening with a division. However, the torso portion 12 and the front region α do not have to be formed as a front opening. That is, the trousers 1 may be like so-called elastic-waist trousers, with the front of the torso portion 12 and the front region α closed, and can be worn by stretching or contracting the elastic belt 24, which is the size adjustment part.

[0110] Furthermore, in the trousers 1 of Embodiment 1, an example was shown in which the engaging member 33 that engages the inner piece 31 and the outer piece 32 is made of hook and loop fastener. However, the engaging member 33 only needs to engage the inner piece 31 and the outer piece 32. For this reason, the engaging member 33 may be made of, for example, a snap button, a hook and hook receiver, a button and buttonhole, etc.

[0111] Furthermore, in the trousers 1 of Embodiment 1, an example was shown in which the core material S, consisting of a rubber belt 24 constituting the dimension adjustment section, is arranged in the left side region γ1 and the right side region γ2. However, the position where the dimension adjustment section is provided can be set arbitrarily. Also, it is sufficient for one or more dimension adjustment sections to be formed in the waist portion 20, and three or more may be formed.

[0112] Furthermore, the dimension adjustment section is not limited to being composed of a rubber belt 24. The dimension adjustment section only needs to be able to adjust the length of the waist section 20 in the direction of the torso. For this reason, the dimension adjustment section may be composed of, for example, a slit formed in the waist section 20 with a button and buttonhole, or a slit with a hook and multiple hook receivers. Moreover, the dimension adjustment section may be configured to adjust the length of the waist section 20 in the direction of the torso by folding and securing the excess waist section 20 to fit the wearer's physique, without forming a slit. [Explanation of Symbols]

[0113] 1. Trousers 10. Trousers 20 Waist area 21 Belt fabric 22 belt core 22a Additional belt core 23 punch cores 24. Rubber belt (dimension adjustment section) 31 Inner piece 32 Outer piece 33 Engaging member 34 Compression area 100 wearers 101 Abdomen 102 Back 103 Side 200 pelvis 201 Intestine Bone 202a Superior anterior intestinal bony spines 202b Superior anterior spur 203 Immortal Bones S core material α Anterior domain β posterior domain γ1 Left side domain (lateral domain) γ2 Right side domain (lateral domain)

Claims

1. The garment comprises a trouser body and a waist portion formed at the upper end of the trouser body and fastened by a belt, The aforementioned waist portion surrounds the pelvis at the height of the anterior superior iliac spine when worn by the wearer, and has a dimension adjustment section to adjust the length in the direction of the waist. When the area of ​​the waist portion on the abdominal side of the wearer is defined as the front region, the area on the back side of the wearer is defined as the rear region, and the area between the front region and the rear region is defined as the side region, The front region has a rigidity of 25.7 mN or more, measured according to the Gahl method specified in JIS L1096 (2010), a width of 4.0 cm to 13.0 cm, and a thickness of less than 14.0 mm, which is thicker than the rear region and the side region. Trousers characterized by the following features.

2. In the trousers described in claim 1, The waist portion is formed with a front opening in which the front area is divided, The front region includes an inner piece extending in the direction of the circumference of the body, an outer piece extending in the direction of the circumference of the body and overlapping the inner piece, and an engaging member that engages the inner piece and the outer piece. Trousers characterized by the following features.

3. In the trousers described in claim 1 or claim 2, The aforementioned front region is set to have a width of 5.5 cm or more and 13.0 cm or less. Trousers characterized by the following features.

4. In the trousers described in claim 1 or claim 2, The front region is set to have a thickness of less than 8.0 mm, which is thicker than the rear region and the side region. Trousers characterized by the following features.

5. In the trousers described in claim 1 or claim 2, The aforementioned rear region has a rigidity of 25.7 mN or more, as measured in accordance with the Gaal method specified in JIS L1096 (2010), and a compression section is provided in the central part in the circumferential direction, with a length in the circumferential direction set to less than 7.4 cm and a thickness set to 8.0 mm or less, which is thicker than the general part of the rear region. Trousers characterized by the following features.

Images