Breathable trousers

The trousers provide a vertically opening and closable ventilation system using flexible bands and string-like bodies to address ventilation and cooling inefficiencies, ensuring effective airflow control and year-round usability.

JP2026095676APending Publication Date: 2026-06-11NEXT TRADING KK

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NEXT TRADING KK
Filing Date
2026-04-03
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Conventional breathable trousers fail to effectively ventilate the rear waist area and often require continuous ventilation, which is undesirable in cold weather, and they struggle to efficiently cool the lower body when worn with jackets equipped with fans.

Method used

The trousers feature a vertically opening, openable and closable ventilation opening between the waist portion and the back panel, utilizing a flexible band and string-like bodies with locking mechanisms to control ventilation, allowing for adjustable and controlled airflow.

🎯Benefits of technology

The solution enables effective ventilation and cooling of the lower body as needed, preventing air leakage and allowing year-round use by controlling airflow, even when worn with jackets equipped with fans.

✦ Generated by Eureka AI based on patent content.

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    Figure 2026095676000001_ABST
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Abstract

To provide breathable trousers that can effectively ventilate the rear of the waist area of ​​the trousers as needed. [Solution] The garment comprises a waist section 1 that surrounds the wearer's torso, and a front panel 2 and a back panel 3 that cover the wearer's lower body. A vertically opening, openable and closable ventilation opening 4 is provided between the rear of the waist section 1 and the upper part of the back panel 3.
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Description

【Technical Field】 【0001】 The present invention relates to ventilated trousers, and more particularly to ventilated trousers capable of performing ventilation as needed at the rear part of the waist area of the trousers. 【Background Art】 【0002】 Conventionally, as clothing for cooling the neck and armpits of a wearer by ejecting air sent into the clothing by a blower toward the neck and armpits of the wearer, the one described in Patent Document 1 below is known. This clothing has an internal space formed between an outer body and an inner body of the clothing. Air is sent into the internal space by a blower provided on the outer body, and the air is ejected from a guiding opening provided on the inner body toward the neck and armpits of the wearer. According to this clothing, the air sent by the blower provided at the lower part of the outer body can be reliably guided to the guiding opening provided at the upper part of the inner body, and the neck and armpits of the wearer can be accurately cooled. 【0003】 However, the clothing described in Patent Document 1 does not assume that air is sent into the trousers by a blower provided on the upper garment, and there is a problem that the lower body of the wearer cannot be cooled. 【0004】 Therefore, until now, as air-conditioned clothing capable of cooling not only the upper body but also the lower body of the wearer by a blower provided on the upper garment, the one described in Patent Document 2 below has been proposed. 【0005】 However, regarding the trousers of the air-conditioned clothing described in Patent Document 2, a close contact portion that closely contacts the waist of the wearer is provided at the upper end of the trousers, and a ventilation portion is simply provided below this close contact portion. This ventilation portion basically opens in the front-rear direction. Therefore, as shown in FIG. 8(b) of Patent Document 2, when the lower end (hem portion) of the upper garment provided with the blower is closely attached to the trousers below the ventilation portion from the outside, depending on the degree of close contact, it is difficult to sufficiently secure a gap between the trousers and the wearer in the ventilation portion and the lower region thereof, and there is a problem that the cooling of the lower body becomes insufficient. 【0006】 Furthermore, the trousers of the air-conditioned workwear described in Patent Document 2 have a drawback in that, because the ventilation opening is always open, it is not possible to stop the ventilation inside the trousers even if the wearer does not want their lower body to be cooled by air, for example, during winter work. [Prior art documents] [Patent Documents] 【0007】 [Patent Document 1] Patent No. 6502033 [Patent Document 2] Patent No. 6827482 [Overview of the Initiative] [Problems that the invention aims to solve] 【0008】 This invention was made in view of the above-mentioned drawbacks of conventional breathable trousers, and aims to provide breathable trousers that can effectively ventilate the rear of the waist area of ​​the trousers as needed. 【0009】 Furthermore, the present invention aims to provide breathable trousers that, even when wearing a conventional jacket equipped with a fan, can effectively send air from the fan installed in the jacket into the trousers to air-cool the wearer's lower body. [Means for solving the problem] 【0010】 The present invention relates to trousers comprising a waist portion that surrounds the wearer's torso and a front and back panel that covers the wearer's lower body, characterized in that a vertically opening, openable and closable ventilation opening is provided between the rear of the waist portion and the upper part of the back panel. 【0011】 Furthermore, the present invention is characterized by comprising an opening means for opening the ventilation opening and a closing means for closing the ventilation opening. 【0012】 Furthermore, the present invention is characterized in that the opening means comprises a flexible band provided substantially horizontally between the rear of the waist area and the upper part of the back panel, and the ventilation opening is opened by curving the area near the longitudinal center of the band in a convex shape toward the rear, more so than the rear of the waist area and the upper part of the back panel. 【0013】 Furthermore, the present invention provides an opening means comprising: a right-hand string-like body whose base end is attached to a portion to the left of the longitudinal center of the band-like body and whose tip extends beyond the longitudinal center of the band-like body to the right side of the waist area; a right-hand opening locking portion provided on the right side of the waist area for detachably locking the tip of the right-hand string-like body; a left-hand string-like body whose base end is attached to a portion to the right of the longitudinal center of the band-like body and whose tip extends beyond the longitudinal center of the band-like body to the left side of the waist area; and a left-hand opening locking portion provided on the left side of the waist area for detachably locking the tip of the left-hand string-like body. The present invention is characterized by curving the band-shaped body by securing the tip of the right string-shaped body and the tip of the left string-shaped body to the right opening locking portion and the left opening locking portion, respectively, thereby reducing the distance between the base end of the right string-shaped body and the base end of the left string-shaped body. 【0014】 Furthermore, the present invention comprises a right guide provided in the waist area to the right of the rear center for inserting the band-shaped body, and a left guide provided in the waist area to the left of the rear center for inserting the band-shaped body. When the tip of the right string-like body and the tip of the left string-like body are locked to the right opening locking portion and the left opening locking portion, respectively, the right guide causes the strip-like body to curve forward in a convex shape between the longitudinal center portion of the strip-like body and the right side portion, and the left guide causes the strip-like body to curve forward in a convex shape between the longitudinal center portion of the strip-like body and the left side portion. 【0015】 Furthermore, the present invention is characterized in that a hook having a downward-facing groove is provided on the rear of the back panel. 【Advantages of the Invention】 【0016】 The ventilated trousers according to the present invention are provided with an openable and closable ventilation opening that opens vertically between the rear part of the waist part and the upper part of the back body. Therefore, ventilation inside the trousers can be effectively performed as needed. 【0017】 Also, even when wearing a conventional jacket with a blower, the air blown by the blower provided in the jacket can be effectively sent into the trousers, and the lower body of the wearer can be sufficiently air-cooled. 【Brief Description of the Drawings】 【0018】 [Figure 1] It is a partial right side view of the ventilated trousers of the embodiment according to the present invention. [Figure 2] It is a partial right side view showing a state where the ventilation opening of the ventilated trousers is open. [Figure 3] It is a cross-sectional view of the main part showing a state where the ventilation opening of the ventilated trousers is open. [Figure 4] It is a cross-sectional view of the main part showing a state where the ventilation opening of the ventilated trousers is closed. [Figure 5] It is a longitudinal sectional view of the main part showing a state where the ventilation opening is open while wearing the ventilated trousers and further wearing a jacket with a blower. [Figure 6] It is a cross-sectional view of the main part of the ventilated trousers of another embodiment according to the present invention. <​​​​​​​​​​​​​The waist area 1 and the front of the front panel 2 have a front opening 11 that can be opened and closed with a slide fastener (not shown). In addition to the slide fastener, other fasteners such as snaps, buttons, or hooks can be used as appropriate for opening and closing the front opening 11. 【0021】 Multiple belt loops 12, 12… are provided on the upper outer surface of the waist section 1, and the breathable trousers 10 can be worn by inserting a belt 13 through these belt loops 12 and wrapping it around the outer surface of the waist section 1 and tightening it. In addition, elastic sections 14 made of rubber or the like are formed on the left and right sides of the upper part of the waist section 1, and each elastic section 14 can be elastically stretched as needed. 【0022】 In this embodiment of the breathable trousers 10, the upper part of the front panel 2 is joined to the front of the waistband 1, whereas the upper part of the back panel 3 is not joined to the waistband 1 and is separate. As a result, as shown in Figure 2, when the upper part of the back panel 3 is moved backward, a ventilation opening 4 that opens vertically is formed between the rear of the waistband 1 and the upper part of the back panel 3. The front edge of the back panel 3, except for its upper part, is joined to the rear edge of the front panel 2. In Figure 2, the part indicated by reference numeral 31 is a gusset provided between the front panel 2 and the back panel 3. In addition, a hook 7 having a downward-facing groove 71 is provided on the upper rear surface of the back panel 3. This hook 7 may be detachably attached to the back panel 3. 【0023】 Furthermore, as shown in Figure 1, the breathable trousers 10 of this embodiment are configured such that when the upper part of the back panel 3 is moved forward, the ventilation opening 4 can be closed, and at this time the upper part of the back panel 3 overlaps the upper part of the waist area 1. 【0024】 Furthermore, the breathable trousers 10 of this embodiment are equipped with an opening means 5 for reliably opening the ventilation opening 4 and a closing means 6 for reliably closing the ventilation opening 4. 【0025】 As shown in Figures 3 and 4, the opening means 5 consists of a flexible band 51 provided substantially horizontally between the rear of the waist portion 1 and the upper part of the back body 3; a right string 52 whose base end is attached to a portion 51L to the left of the longitudinal center of the band 51 and whose tip extends beyond the longitudinal center of the band 51 to the right side of the waist portion 1; a right opening locking portion 53 provided on the right side of the waist portion 1 and detachably locking the tip of the right string 52; a left string 54 whose base end is attached to a portion 51R to the right of the longitudinal center of the band 51 and whose tip extends beyond the longitudinal center of the band 51 to the left side of the waist portion 1; and a left opening locking portion 55 provided on the left side of the waist portion 1 and detachably locking the tip of the left string 54. 【0026】 The band-shaped body 51 in this embodiment is made of a narrow woven fabric such as a so-called nylon belt, and is positioned with its longitudinal direction approximately horizontal between the waist area 1 and the back body 3. 【0027】 In this embodiment, the band-shaped body 51 is inserted through the tube of a short cylindrical central guide 32 provided on the front of the rear center of the back body 3 at its longitudinal center, and between the longitudinal center of the band-shaped body 51 and the right portion 51R, it is inserted through the tube of a short cylindrical right guide 16 provided on the outer surface of the portion 15R to the right of the rear center of the waist portion 1, and the band-shaped body 51 is inserted and fixed inside the back body 3 from the right portion 51R to its right end. Furthermore, between the longitudinal center of the band-shaped body 51 and the left portion 51L, it is inserted through the tube of a short cylindrical left guide 17 provided on the outer surface of the portion 15L to the left of the rear center of the waist portion 1, and the band-shaped body 51 is inserted and fixed inside the back body 3 from the left portion 51L to its left end. 【0028】 In this embodiment, the right cord-like body 52 and the left cord-like body 54 are made of a flexible, narrow woven fabric that is smaller in width and thickness than the band-like body 51, and are positioned with their longitudinal direction approximately horizontal between the waist area 1 and the back body 3. 【0029】 In this embodiment, the right cord-like body 52 has its base end sewn and fixed together with the back body 3 to the left portion 51L of the band-like body 51, and is inserted in this order into the tubes of the left guide 17, the right guide 16, and the short cylindrical right auxiliary guide 33 provided on the inner surface near the right front edge of the back body 3, between the base end and the tip of the right cord-like body 52. 【0030】 Similarly, in this embodiment, the base end of the left cord-like body 54 is sewn and fixed together with the back body 3 to the right portion 51R of the band-like body 51, and the base end and tip of the left cord-like body 54 are inserted in this order into the tubes of the right guide 16, the left guide 17, and the short cylindrical left auxiliary guide 34 provided on the inner surface near the left front edge of the back body 3. 【0031】 The right opening locking portion 53 and the left opening locking portion 55 in this embodiment are composed of known male-female interlocking fasteners. Specifically, as shown in Figure 3, the right opening locking portion 53 is composed of a male locking member 531 fixed to the tip of the right cord-like body 52 and a female locking member 532 fixed to the outer surface of the right side of the waist portion 1 and detachably fitted with the male locking member 531. Similarly, the left opening locking portion 55 is composed of a male locking member 551 fixed to the tip of the left cord-like body 54 and a female locking member 552 fixed to the outer surface of the left side of the waist portion 1 and detachably fitted with the male locking member 551. 【0032】 In addition to male-to-female interlocking fasteners, other suitable options for the right opening locking portion 53 and the left opening locking portion 55 include, for example, well-known male-to-female hook-and-loop fasteners, buttons, and buttonholes. 【0033】 As shown in Figure 4, the closing mechanism 6 consists of a string-like body 61 whose base end is fixed to the right front edge of the upper part of the back panel 3, a right closing locking part 62 that detachably locks the tip of the string-like body 61, a string-like body 63 whose base end is fixed to the left front edge of the upper part of the back panel 3, and a left closing locking part 64 that detachably locks the tip of the string-like body 63. 【0034】 The right closing locking portion 62 and the left closing locking portion 64 of this embodiment are composed of known male-female interlocking fasteners. Specifically, the right closing locking portion 62 is composed of a male locking member 621 fixed to the tip of the string-like body 61 and the female locking member 532 which is detachably fitted to the male locking member 621. Similarly, the left closing locking portion 64 is composed of a male locking member 641 fixed to the tip of the string-like body 63 and the female locking member 552 which is detachably fitted to the male locking member 641. 【0035】 In this embodiment, the female locking members (532 and 552) of the right opening locking portion 53 and the left opening locking portion 55 of the opening means 5 are also used as female locking members of the right closing locking portion 62 and the left closing locking portion 64 of the closing means 6. This reduces the number of parts in the ventilated trousers 10 and improves the ease of opening and closing the ventilation opening 4. In addition to male-to-female interlocking fasteners, other types of fasteners such as well-known male-to-female hook-and-loop fasteners, buttons, and buttonholes can be used as the right closing locking portion 62 and the left closing locking portion 64 as appropriate. 【0036】 By wearing the breathable trousers 10 of this embodiment, and as shown in Figure 3, pulling the tip of the right string-like body 52 and the tip of the left string-like body 54 of the opening means 5 forward and locking them to the right opening locking part 53 and the left opening locking part 55, respectively, the distance between the base end of the right string-like body 52 and the base end of the left string-like body 54 can be reduced, thereby reducing the straight-line distance between the left portion 51L and the right portion 51R of the band-like body 51. This allows the area near the longitudinal center of the band-like body 51 to be curved in a convex shape towards the rear, greater than the rear of the waist portion 1 and the upper part of the back body 3. In other words, the curvature of the rearward convex curved portion in the longitudinal center of the band-like body 51 can be made greater than the curvature of the rear of the waist portion 1 and the back body 3. 【0037】 As described above, with the breathable trousers 10 of this embodiment, by curving the band-shaped body 51 provided between the waist portion 1 and the back portion 3 into an arch shape with a greater curvature than the waist portion 1 and the back portion 3, the upper part of the back portion 3 is reliably moved backward relative to the waist portion 1, and a ventilation opening 4 that opens in the vertical direction can be reliably formed between the rear of the waist portion 1 and the upper part of the back portion 3, thereby enabling effective ventilation inside the trousers. 【0038】 Furthermore, according to the breathable trousers 10 of this embodiment, when the tip of the right string-like body 52 and the tip of the left string-like body 54 of the opening means 5 are locked to the right opening locking part 53 and the left opening locking part 55, respectively, the right guide 16 provided on the waist part 1 causes the band-like body 51 to curve forward in a convex shape between its longitudinal center and the right side part 51R, and at the same time, the left guide 17 causes the band-like body 51 to curve forward in a convex shape between its longitudinal center and the left side part 51L. This makes it possible to open the ventilation opening 4 more reliably. 【0039】 Furthermore, since these right guide 16 and left guide 17 are provided on the waist area 1, it is possible to effectively prevent the back panel 3 from slipping down relative to the waist area 1, especially when opening and closing the ventilation opening 4. 【0040】 Furthermore, according to the breathable trousers 10 of this embodiment, a vertical ventilation opening 4 is formed by curving the band-shaped body 51 in an arch shape between the waist area 1 and the back body 3. As shown in Figure 5, even when the wearer M wears a known jacket 8 with a fan, the air A from the fan 81 provided in the jacket 8 can be effectively sent into the trousers, and the lower body of the wearer M can be sufficiently air-cooled. 【0041】 Conventional jackets with built-in fans 8 typically have a hem 82 that is elastically stretchable or adjustable with an inserted string-like material to prevent the air blown by the fan 81 from leaking out. In this embodiment, the ventilation opening 4 of the ventilated trousers 10 is formed by the arch structure of the band-like body 51. Therefore, unlike conventional jackets with built-in fans 8, even if an external force F is applied from behind to the upper part of the back panel 3, the ventilation opening 4, which opens vertically, does not easily collapse, and the air blown by the fan 81 can be effectively sent into the trousers. Furthermore, the ventilation opening 4 does not easily collapse when the wearer M takes a bent-over posture. 【0042】 Furthermore, the breathable trousers 10 of this embodiment are provided with a hook 7 having a downward-facing groove 71 at the upper part of the back panel 3, so that the hem 82 of the jacket 8 with a fan can be hooked onto the hook 7. For example, even when the wearer M takes a bent-over posture, the hem 82 of the jacket 8 can be effectively prevented from sliding up against the back panel 3. 【0043】 Furthermore, according to the breathable trousers 10 of this embodiment, as shown in Figure 4, by releasing the locks at the ends of the right string-like body 52 and the left string-like body 54 of the opening means 5, and pulling the string-like bodies 61 and 63 of the closing means 6 forward and locking them to the right closing locking part 62 and the left closing locking part 64, respectively, the curvature of the band-like body 51 can be returned to the same degree of curvature as the waist area 1 and the back body 3, while the upper part of the back body 3 can be easily moved forward, thereby reliably closing the ventilation opening 4. This ensures that ventilation inside the trousers is reliably stopped. 【0044】 As described above, the breathable trousers 10 of this embodiment are equipped with an opening means 5 and a closing means 6, so the wearer can start and stop ventilation at the rear of the waist area of ​​the trousers as needed. Therefore, even if the wearer does not want their lower body to be cooled by the air, for example, when working in winter, the breathable trousers 10 of this embodiment can be used with the ventilation opening 4 closed, making it possible to use them year-round. 【0045】 In addition, in the breathable trousers 10 of this embodiment, the right string-like body 52 and the left string-like body 54 of the opening means 5, as well as the right opening locking part 53 and the left opening locking part 55, may be equipped with a length adjustment mechanism such as a well-known sliding hook or ladder lock. If the right string-like body 52 and the left string-like body 54, etc. are equipped with a length adjustment mechanism, the degree of opening of the breathable opening 4 can be easily adjusted by adjusting the length of the right string-like body 52 and the left string-like body 54, etc. Furthermore, the string-like bodies 61 and 63 of the closing means 6, as well as the right closing locking part 62 and the left closing locking part 64, may also be equipped with a length adjustment mechanism. 【0046】 The breathable trousers 10 of this embodiment have been described above, but the present invention can also be implemented in other embodiments. 【0047】 For example, as shown in the breathable trousers 20 in Figure 6, the opening means 8 for opening the ventilation opening 4 may consist of a flexible band 81 provided substantially horizontally between the rear of the waist area 1 and the upper part of the back panel 3, a right opening locking part 82 provided to the right of the rear center of the waist area 1 and detachably locking the right end of the band 81, and a left opening locking part 83 provided to the left of the rear center of the waist area 1 and detachably locking the left end of the band 81. 【0048】 With these breathable trousers 20, the right and left ends of the band-shaped body 81 are locked to the right opening locking part 82 and the left opening locking part 83, respectively, and the straight-line distance between the right and left ends of the band-shaped body 81 is shortened to less than the length of the band-shaped body 81 itself. As a result, the area near the longitudinal center of the band-shaped body 81 can be curved backward in a convex shape, more so than the rear of the waistband 1 and the upper part of the back panel 3, and a ventilation opening 4 that opens in the vertical direction can be formed between the rear of the waistband 1 and the upper part of the back panel 3. 【0049】 Furthermore, as shown in Figure 6, the right opening locking portion 82 of the opening means 8 may be composed of a male hook-and-loop fastener member 821 provided at the right end of the strip-shaped body 81 and a female hook-and-loop fastener member 822 provided on the rear outer surface of the waist portion 1 and detachably joined to the male hook-and-loop fastener member 821. Similarly, the left opening locking portion 83 may be composed of a male hook-and-loop fastener member 831 provided at the left end of the strip-shaped body 81 and a female hook-and-loop fastener member 832 provided on the rear outer surface of the waist portion 1 and detachably joined to the male hook-and-loop fastener member 831. 【0050】 With these breathable trousers 20, the degree of opening of the ventilation opening 4 can be easily adjusted by changing the joining position of the male hook-and-loop fastener members (821-831) to the female hook-and-loop fastener members (822-832). In addition to male and female hook-and-loop fasteners, the right opening locking portion 82 and the left opening locking portion 83 may also be made of, for example, a button and multiple buttonholes that engage with the button. 【0051】 Furthermore, as shown in Figure 7, the breathable trousers 30 may be provided with an opening and closing mechanism 9 for opening and closing the ventilation opening 4 as needed. This opening and closing mechanism 9 consists of a male hook-and-loop fastener member 91 provided on the upper right front edge of the back panel 3, a female hook-and-loop fastener member 92 provided on the right side of the waist area 1 and detachably connected to the male hook-and-loop fastener member 91, a male hook-and-loop fastener member 93 provided on the upper left front edge of the back panel 3, and a female hook-and-loop fastener member 94 provided on the left side of the waist area 1 and detachably connected to the male hook-and-loop fastener member 93. 【0052】 With these breathable trousers 30, the ventilation opening 4 can be easily opened and closed, and the degree of opening of the ventilation opening 4 can be adjusted, by changing the joining position of the male hook-and-loop fastener members (91-93) to the female hook-and-loop fastener members (92-94) of the opening / closing means 9. In addition to male and female hook-and-loop fasteners, the opening / closing means 9 may also be, for example, a button and multiple buttonholes that engage with the button. 【0053】 The present invention can also be implemented in various forms with improvements, modifications, and variations based on the knowledge of those skilled in the art, without departing from its spirit. Furthermore, the invention may be implemented in a form in which any of the inventive features is replaced with other technologies within the scope of producing the same function or effect, and an inventive feature that is configured as a single unit may be configured as multiple components, or an inventive feature that is configured as multiple components may be configured as a single unit. [Explanation of Symbols] 【0054】 10, 20, 30 Breathable trousers 1. Waist area 15R (Right side of the waist area) 15L (Waist area) Left side 16 Right Guide 17 Left Guide 2 Front 3. Back 4. Ventilation openings 5, 8 Opening means 51, 81 Band-shaped body 51R (right side of the cingulate cortex) 51L (left side of the zona) 52 Right string-like body 53, 82 Right opening locking part 54 Left cord-like body 55, 83 Left opening locking part 6 Closing means 7 hooks 71 Groove 8. Jacket with built-in fan 81 Blower M wearer

Claims

[Claim 1] Trousers comprising a waist section that surrounds the wearer's torso, and a front and back section that covers the wearer's lower body, Breathable trousers characterized by having a vertically opening, openable and closable ventilation opening between the rear of the waist area and the upper part of the back panel. [Claim 2] The ventilated trousers according to claim 1, further comprising an opening means for opening the ventilation opening and a closing means for closing the ventilation opening. [Claim 3] The breathable trousers according to claim 1 or claim 2, characterized in that a hook having a downward-facing groove is provided on the rear of the back panel.