CN110037365B

CN110037365B - Flexible inflatable deformation support for warm-keeping clothes

Info

Publication number: CN110037365B
Application number: CN201910279823.5A
Authority: CN
Inventors: 崔彦; 刘晓刚
Original assignee: Donghua University
Current assignee: Donghua University
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2021-03-26
Anticipated expiration: 2039-04-09
Also published as: CN110037365A

Abstract

The invention provides a flexible inflatable deformation support for warm clothes, which comprises a front inflatable structure and a rear inflatable structure, wherein the front inflatable structure and the rear inflatable structure are connected through a hose; the front sheet inflatable structure and the rear sheet inflatable structure are identical in structure and respectively comprise a longitudinal communication air passage, a plurality of transverse air passages are connected to two sides of the communication air passage, the transverse air passages on two sides of the communication air passage are symmetrically arranged, and each transverse air passage is communicated with the communication air passage; i-shaped pleat structures which can deform when being inflated are arranged on the communicated air passage and the transverse air passage. The inflatable support provided by the invention can be used for replacing a thermal interlayer in clothes, such as down and cotton, and the range of thermal materials is widened. And almost no weight and thickness, and is hidden in the clothes before inflation, thus not bringing any influence to the wearer. The invention uses the aluminized thermoplastic film as the material, has low price and greatly reduces the material cost of the warm-keeping clothes.

Description

Flexible inflatable deformation support for warm-keeping clothes

Technical Field

The invention relates to a flexible inflatable deformation support for warm-keeping clothes, which is used for replacing a warm-keeping interlayer in the clothes and belongs to the technical field of clothes.

Background

Researchers have never stopped exploring thermal materials, from the first down, wool, cotton to the latest aerogels, graphene, carbon fibers, shape memory metals, and the like. The air is used as a substance with excellent heat insulation effect in nature, and has the advantages of environmental protection, no weight, low cost and the like. It is well known that the more still air contained in a textile structure, the better its thermal insulation properties. In recent years, thermal garments that directly utilize air as a thermal material have begun to appear. Among the marketed inflatable temperature-regulating garments, the more mature one developed is the inflatable thermal garment of the U.S. NuDown company, which is mainly used for ski wear in extremely cold weather. The main body part of the garment body is made of the air-tight double-layer fabric, the inflation air passage is formed by pressing, and when a wearer needs to keep warm, the thickness of the fabric (the heat insulation layer) can be increased by pressing and inflating the air bag through the inflation pump in the pocket, so that the warm effect is achieved. Further, air may be replaced with even an inert gas such as argon, which has a thermal conductivity 32% lower than that of air. One of the second generation products, the "Lake Tahoe" series, is to add an inflatable fabric only on the front part of the trunk of the garment in order to increase the breathability of the garment and reduce the area of the inflatable fabric.

The temperature adjusting principle of the inflatable warm-keeping garment mainly changes the heat insulation performance of the fabric by changing the thickness of an air layer in the fabric, and finally achieves the purpose of temperature adjustment. The existing inflatable clothes mostly adopt double-layer airtight materials, and form an air bag after inflation treatment. Or a detachable air bag is added in the double-layer fabric of the garment and is inflated by a hand-held air pump.

However, most inflatable clothes are of sheet-shaped continuous air channel structures similar to inflatable mattresses, all cavities are separated by hot-pressing indentations, most inflatable clothes are airtight, and the wearing comfort level is reduced due to excessive wet resistance of the clothes. Because the inflated material is inelastic, the garment becomes stiff after inflation. Due to the design, the clothes cannot be well attached to a human body after being inflated, and the wearing comfort is reduced. Most inflatable thermal clothes adopt composite film materials, so that the weight is large and the cost is high. Therefore, the inflatable warm-keeping clothes which are good in breathability, light in weight, fit the human body and low in cost are developed, and the inflatable warm-keeping clothes have very remarkable practical value.

There are two existing solutions: the air bag is divided into a plurality of small air chambers, and vent holes are connected among the air chambers, so that the defect that the inflatable clothes are not easy to fold is overcome. The small air bag still serves as the primary insulating unit. Meaning that the more inflated portions, the warmer the garment. The second method is to provide ventilation holes in the garment to increase ventilation, but the effect is not obvious. For cost reduction, some inflatable garments utilize retroreflective plastic films as the inflation material, which is extremely lightweight but can only be used in extreme cases, mostly as a disposable product. In general, the problem that needs to be solved by inflatable garments is to increase the breathability of the garment, to reduce the weight and fit perfectly to the body without binding the body's activities, and to reduce the cost.

Disclosure of Invention

The technical problem to be solved by the invention is how to improve the air permeability of the traditional inflatable warm-keeping clothes, solve the design structure that an inflatable part is not easy to bend, reduce the weight of the inflatable warm-keeping clothes and simplify the manufacturing mode of the inflatable warm-keeping clothes.

In order to solve the technical problems, the technical scheme of the invention is to provide a flexible inflatable deformation support for warm clothes, which is characterized in that: the inflatable structure comprises a front inflatable structure and a rear inflatable structure, wherein the front inflatable structure is connected with the rear inflatable structure through a hose;

the front sheet inflatable structure and the rear sheet inflatable structure are identical in structure and respectively comprise a longitudinal communication air passage, a plurality of transverse air passages are connected to two sides of the communication air passage, the transverse air passages on two sides of the communication air passage are symmetrically arranged, and each transverse air passage is communicated with the communication air passage;

i-shaped pleat structures which can deform when being inflated are arranged on the communicated air passage and the transverse air passage.

Preferably, the front inflatable structure and the rear inflatable structure are both formed by two pieces of heat-bonding films through hot pressing, and a heat-sealing seam is formed at the hot pressing part.

Preferably, the communicating air passage is provided with longitudinally arranged double-sided parallel I-shaped folds.

Preferably, each transverse air passage end is provided with an I-shaped pleat structure with different quantity and density.

More preferably, the I-shaped pleat structures expand upon inflation and assist in the creation of different arcs in the transverse airways. .

Preferably, the front inflatable structure and the rear inflatable structure deform when inflated, and the deformation structure is designed in advance according to use requirements, so that the front inflatable structure and the rear inflatable structure are attached to a human body after being inflated.

Preferably, different deformation structures are designed according to different numbers, positions, directions, shapes or density arrangement of the fold structures.

Preferably, the transverse air passages of the inflatable structure of the front and the rear sheets are composed of an upper thermal adhesive film and a lower thermal adhesive film which have different lengths and the same width w, and the length l of the upper thermal adhesive film is the same when the transverse air passages are in a non-expansion state₁Length of lower heat-bonding film₂The width c of the I-shaped pleat, the hidden width 2h of the I-shaped pleat and the corresponding width a of the lower layer of the I-shaped pleat; width d of two sides of the I-shaped pleat; after expansion, the hidden surface area of the folded part is unfolded under the drive of expansion tensionThe relationship between the bending angle theta and the size of the inflatable structure can be obtained by approximating the shapes of the front and rear sheet inflatable structures to a cylinder with a circular cross section to produce the bending angle theta.

l₁＝2d+2h+c

l₂＝2d+a

c＝2h+a

Preferably, different deformation effects are achieved by designing the number and spacing of the heat-sealed seams.

Preferably, the deformation effect of bending to one side when inflated is formed by adding different number of seams to the two sheets of heat-bondable films.

The inflatable support overcomes the defects of the prior art, can be used for replacing a warm-keeping interlayer in clothes, such as down and cotton, and widens the range of warm-keeping materials. And almost no weight and thickness, and is hidden in the clothes before inflation, thus not bringing any influence to the wearer. The invention uses the aluminized thermoplastic film as the material, has low price and greatly reduces the material cost of the warm-keeping clothes.

Drawings

FIG. 1a is a schematic front view of a single sheet of a deformable inflatable structure before deformation;

FIG. 1b is a front right view of a single sheet of a deformable inflatable structure after deformation;

FIG. 2a is a schematic front view of a single inflation process of the deformable inflatable structure;

FIG. 2b is a schematic right view of a single sheet inflation process with a deformable inflatable structure;

FIG. 3a is a schematic front view of a deformable inflatable structure after inflation of a single sheet is completed;

FIG. 3b is a schematic right view of a single sheet of the deformable inflatable structure after inflation;

FIG. 4 is a schematic view of a single I-pleat closed condition;

FIG. 5a is a schematic view of a deformed I-shaped pleat small-radian bending structure;

FIG. 5b is a side view of the upper and lower layers of film with small curvature deformed I-shaped pleats;

FIG. 5c is a small arc deformation arc schematic;

FIG. 6a is a schematic view of a deformed I-shaped pleat large-radian bending structure;

FIG. 6b is a side view of the upper and lower layers of film in a large arc deformed I-shaped pleat;

FIG. 6c is a large arc deformation arc schematic;

FIG. 7a is a schematic view of a deformed I-shaped pleat ladder structure;

FIG. 7b is a side view of the upper and lower layers of film in a trapezoidal deformed I-shaped pleat;

FIG. 7c is a schematic view of a trapezoidal deformation curve;

FIG. 8a is a schematic diagram of a deformed I-shaped pleat wave structure;

FIG. 8b is a side view of the upper and lower layers of film in a wave-deformed I-shaped pleat;

FIG. 8c is a schematic view of a wave-like deformation curve;

FIG. 9a is a schematic view of an I-shaped pleat geometry prior to deformation;

FIG. 9b is a schematic view of the geometry of the I-shaped pleat after deformation;

FIG. 10 is a schematic view of a deformation process of a hot-pressed transverse pleat structure;

FIG. 11 is a side view of a deformed transverse pleat structure of the heat press;

FIG. 12 is a schematic view of the geometry of the deformation of the hot pressed transverse pleat formation;

description of reference numerals:

1-double parallel i-shaped pleats; 2-single i-pleat; 3, three parallel I-shaped folds; 4-communicating air passage with longitudinally arranged double-sided parallel I-shaped folds; 5, thermally sealing seams; 6-transverse air passage;

7-equidistant single I-shaped pleat; 8, small radian deformation monomer before inflation; 9-hot pressing the boundary; 10-small radian deformation monomer during inflation; 11-single i-pleat after unfolding; 12-small radian deformation monomer after inflation is finished; 13-small radian deformation I-shaped pleat upper film; 14-small radian deformation I-shaped pleat lower film;

15-equidistant single I-shaped pleat; 16-large-radian deformation monomer before inflation; 17-large arc deformation monomer during inflation; 17-large-radian deformation monomer after inflation is finished; 19-single i-pleat after unfolding; 20-large-radian-deformation I-shaped pleat upper-layer film; 21-large-radian deformed I-shaped pleat lower-layer film;

22-equidistant triple I-pleat; 23-inflatable front trapezoidal single body; 24-trapezoidal monomer when inflating; 25-trapezoidal monomer after deformation is finished; 26-triple I-shaped pleat after expansion; 27-trapezoidal deformed I-shaped pleated upper film; 28-trapezoidal deformation I-shaped pleat lower film;

29-equidistant double-sided triple I-shaped pleats; 30-wave-shaped monomer before inflation; 31-wave monomer during inflation; 32-wave-shaped monomer after deformation is finished; 33-unfolding double-side triple I-shaped folds; 34-wave-deformation I-shaped pleat upper-layer film; 35-wave deformation I-shaped pleat lower film;

36-before the small-radian single-side deformation monomer of the transverse pleat is deformed in a hot pressing mode; 37-single hot-pressing pleat; 38-after the small-radian single-side deformation monomer of the transverse pleat is deformed by hot pressing; 39-before the single-side large-radian deformation monomer of the transverse pleat is deformed by hot pressing; 40-parallel hot-pressing pleating; 41, after the large-radian single-side deformation monomer of the transverse pleat is deformed by hot pressing; 42, before the deformation of the transverse S-shaped deformation monomer is carried out by hot pressing; 43-dense parallel hot pressing pleating; 44-after the hot-pressing transverse S-shaped deformation monomer is deformed;

45, before the hot-pressing transverse pleating deformation monomer deforms, and 46 after the hot-pressing transverse pleating deformation monomer deforms; and 47, hot-pressing and creasing.

Detailed Description

The invention will be further illustrated with reference to the following specific examples.

A flexible inflatable deformation support for warm clothes is composed of a front inflatable structure and a rear inflatable structure, wherein the two inflatable structures are the same and are connected through a thin hose. The one-piece inflatable structure is shown in detail in fig. 1a and 1 b.

In order to achieve the design of sticking to a human body, the present embodiment uses different deformation combinations to complete deformation presetting. The vertical part in the inflatable structure is the communicated air passage 4 with longitudinally-arranged double-sided parallel I-shaped folds of the whole inflatable structure, the inflatable structure of the part is different from other branch lines according to the bending form of a spine of a human body, and double-layer materials of the communicated air passage 4 are provided with relatively dense folds. The advantage of this design is that this part can be bent at any angle without inconvenience to the movement of the body.

Many horizontal air flues 6 are connected to the both sides of UNICOM air flue 4, and the horizontal air flue 6 symmetry setting of 4 both sides of UNICOM air flue, each horizontal air flue 6 and UNICOM air flue 4 all through connection.

In this embodiment, the single inflatable structure is formed by connecting seven parallel transverse air passages 6 with a longitudinal communicating air passage 4, and the shape can be obtained by laser cutting machine or manual cutting. The inflatable structure is provided with double-layer films, and the inflatable function can be realized after the two films are hot-pressed by the hot press.

The tail ends of the transverse air passages 6 are provided with I-shaped pleat structures with different quantities and densities for controlling structural deformation, and the I-shaped pleat structures can be combined with small-radian I-shaped pleats, large-radian I-shaped pleats or trapezoid I-shaped pleat structures, and can also adopt double parallel I-shaped pleats 1, single I-shaped pleats 2, three parallel I-shaped pleats 3 and the like. Fig. 4 is a schematic view of a single i-fold closed state, where two films are hot pressed by a hot press to form a heat-sealed seam 5 at the junction.

Because of the irregularity of the upper body and the trunk of the human body, different from soft fabrics, the target deformation shape of the inflatable support can be well attached to the human body only by accurate design and measurement. The following technical scheme designs the break angle of the inflatable structure by using an I-shaped pleat pleating process in a garment manufacturing method for reference. And different deformation effects are designed according to different numbers, positions, directions or density arrangement of the I-shaped pleats.

Fig. 1a, 1b, 2a, 2b and 3a, 3b are respectively a front view and a top view before, during and after the deformation. The flexible inflatable deformation support gradually bends and contracts towards the trunk of a human body in the deformation process, slight binding force is generated, movement between the clothes and the trunk is reduced, the stability of an air layer between the clothes is improved, and the heat preservation performance of the clothes is improved.

And (3) longitudinal deformation pleat pressing design: fig. 5a to 5c, 6a to 6c, 7a to 7c, and 8a to 8c show the deformation results of different combinations of the wrinkles. The double-layer film structure is bonded by hot pressing of a hot press. The I-shaped pleat that its top layer had is more, reserves deformation area for the top layer big more, and deformation back structure bending angle is big more. The i-fold large arc curved structure (fig. 6 a-6 c) has a larger curvature than the i-fold small arc curved structure (fig. 5 a-5 c) because the former has fewer folds and the bending angle is smaller than the latter. The I-shaped pleat ladder-shaped structure (figure 7 a-figure 7c) is designed to be provided with compact folds in a certain area, thereby forming bending deformation approximate to a right angle. The upper and lower films of the I-shaped pleat wave-shaped structure (figure 8 a-figure 8c) are provided with folds, and double-side bending can be realized. These four deformation structures show potential shape variations of the bending structure, which means that the deformable behavior can be pre-tailored by pre-programmed design. The present embodiment includes, but is not limited to, the above structure, and any inflatable membrane structure having upper and lower membrane structures and different areas is included in the design of the present embodiment. The geometrical relationship of each part of the I-shaped pleat structure is as follows.

Calculating a bending angle: with reference to fig. 9a and 9b, the present invention proposes that the structural material is inelastic, and the inflated structure meets the following dimensional ratio conditions:

d＞＞2h+c (1)

the inflatable deformation structure consists of an upper thermal bonding film material and a lower thermal bonding film material which have different lengths and the same width w, and theoretically, all soft hot-pressing composite film materials such as TPU (thermoplastic polyurethane), thermal-bonding oxford fabric and the like can be used for the inflatable deformation structure. FIG. 9a shows the inflatable body in a non-inflated state, with a superstructure length of l₁Length of lower layer l₂The width c of the I-shaped pleat, the hidden width 2h of the I-shaped pleat and the corresponding width a of the lower layer of the I-shaped pleat; width d of two sides of the I-shaped pleat. After expansion, the object takes the shape shown in fig. 9 b. When the inflatable air bag is inflated, the hidden surface area at the folded position is unfolded under the driving of expansion tension, so that the structure is bent to generate a folding angle theta, the influence of peripheral expansion is eliminated, the shape of a deformed object is approximate to a cylinder with a circular section, and the relationship between the bending angle theta and the size of the object can be obtained through the assumption.

l₁＝2d+2h+c (2)

l₂＝2d+a (3)

c＝2h+a (4)

And (3) transverse deformation pleat pressing design: in addition to the vertical "I-fold" bending deformation, the present invention also allows for different deformation results to be achieved by designing the heat-sealed seam as shown in FIG. 10. Since the heat seal seam is able to "catch" part of the area when inflated, this means that part of the membrane structure will shrink during deformation. When the number and the distance of the heat-seal seams are equal, the bending angle of the inflatable structure is the same. We take advantage of this shrinkage property to increase the amount of transverse deformation of the entire inflated structure. The amount of transverse deformation provides a "spring" -like margin of elasticity for the inflatable structure, increasing the flexibility of the overall structure, and thus improving the comfort of the wearer. For example, the greater the number of seams in an inflated structure, the smaller its transverse width after inflation, and the more stretchable it is.

In addition, if we add a seam to a single side of the film, it will bend to one side and form a two-dimensional arc. And the curve angle increases with increasing number of seams. The above inflation deformation caused by the crimping is structural autonomy. By controlling the shape of the inflatable structure and the parameters such as the number, the positions, the angles and the like of the pleat pressing paths, the inflatable deformation in different forms can be realized. As shown in FIG. 11, the inflatable structure has n equal width parallel seams, n is a positive integer, and the length before inflation is W₁In the process of inflation, the planar structure is changed into a connected parallel structure similar to an isosceles trapezoid, in the process of deformation, the width of the structure is continuously reduced, and the final width is about W₂The thickness of the structure after inflation is 2H, and the relative angle of H is theta. With reference to fig. 12, the specific geometrical relationships are as follows:

W₁-W₂＝2h(1-cosθ)·sin^-1θ(n+1) (6)

at first this design is through aerifing production deformation, and deformation structure can be according to the pre-programmed crooked curve of calculation, makes it aerify the back laminating human body. The inspiration comes from human joints, and the area ratio of upper and lower films of the inflatable structure is changed by simulating the bending structure of finger joints. Generally, the membrane structure of an inflatable garment has the same upper and lower layer area, and although flexible and bendable before inflation, rigid after inflation and incapable of deformation. However, if a part of the area of the film is reserved, the structure can be bent after being inflated by utilizing the area difference of the upper film and the lower film. Therefore, the bending angle can be changed by designing the size of the reserved area, and the position of the reserved area can be set to change the bending shape. The structure simulates a human body skeleton, and by combining the deformation method, a support structure similar to an exoskeleton can be formed to support the clothes, so that a fixed air layer is formed, and the heat preservation performance of the clothes is improved. Moreover, the weight of the structure is almost zero, and the thickness before inflation is almost zero, so that extra weight and thickness cannot be added to the clothes. The inflatable material is low in price, can be made of PVC or PET metal coating film, the plastic film material with the metal coating has the characteristic of good heat insulation and moisture resistance, and theoretically, any material with thermoplastic plastics (thermoplastic) can be used for the inflatable material.

The embodiment optimizes the original inflatable part into a supporting bracket structure, replaces the warm-keeping function of the original inflatable structure, the inflatable bracket is attached to the inner side of the coat of a wearer or is arranged in the interlayer of the coat, and when the inflatable bracket is inflated, the coat is supported by the bracket, an air layer between the coats is increased, and the effect of improving heat insulation is achieved. Simultaneously, the deformation structure of aerifing the support is designed in advance, ensures that it aerifys the better human body of laminating of back, and does not influence the structure performance of buckling.

It is noted that this structure only acts as an interlayer between the lining and the face fabric of the garment, and is not recommended for use directly as a garment. The supporting structure used as the interlayer can form a stable air layer more easily, reduce air convection and have better heat preservation effect. The inflatable structure finishes the deformation state of fitting the human body with the help of the hidden area and provides slight binding force, so that slight movement between the clothes and the human body can be reduced, and a static air layer is better kept.

While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a deformation support is aerifyd to flexibility for cold-proof clothing which characterized in that: the inflatable structure comprises a front inflatable structure and a rear inflatable structure, wherein the front inflatable structure is connected with the rear inflatable structure through a hose;

the front sheet inflatable structure and the rear sheet inflatable structure are identical in structure and respectively comprise a longitudinal communication air passage (4), a plurality of transverse air passages (6) are connected to two sides of the communication air passages (4), the transverse air passages (6) on two sides of the communication air passages (4) are symmetrically arranged, and each transverse air passage (6) is communicated with the communication air passages (4);

the front sheet inflatable structure and the rear sheet inflatable structure are formed by hot pressing two heat-bonded films, and a heat-bonded seam is formed at the hot-pressed position;

different deformation effects are achieved by designing the number and the width of the heat seal seams;

i-shaped pleat structures which can deform when being inflated are arranged on the communicating air passage (4) and the transverse air passage (6);

the I-shaped pleat structure is an I-shaped pleat structure with different radians or a trapezoid I-shaped pleat structure;

different deformation structures are designed according to the difference of the number, position, direction, shape or density arrangement of the I-shaped pleat structures;

the inflatable structures of the front and the back pieces are arranged with different lengths and widthsw are identical, and the length of the upper layer of the thermoadhesive film is l in the non-expanded state₁Length of lower heat-bonding film₂The width c of the I-shaped pleat, the hidden width 2h of the I-shaped pleat and the corresponding width a of the lower layer of the I-shaped pleat; width d of two sides of the I-shaped pleat; after expansion, the hidden surface area at the folded position is unfolded under the driving of expansion tension, so that the front and rear inflatable structures are bent to generate a folding angle theta, the shapes of the front and rear inflatable structures are approximate to a cylinder with a circular section, and the relation between the bending angle theta and the size of the inflatable structure can be obtained as follows,

l₁＝2d+2h+c

l₂＝2d+a

c＝2h+a

2. a flexible inflatable deformable support for thermal garments according to claim 1, characterized in that: and the communicated air passage (4) is provided with longitudinally arranged double-sided parallel I-shaped folds.

3. A flexible inflatable deformable support for thermal garments according to claim 1, characterized in that: the tail ends of the transverse air passages (6) are provided with I-shaped pleat structures with different numbers and densities.

4. A flexible inflatable deformable support for thermal garments according to claim 1, characterized in that: the front sheet inflatable structure and the rear sheet inflatable structure deform when inflated, and the deformation structure is designed in advance according to use requirements, so that the front sheet inflatable structure and the rear sheet inflatable structure are attached to a human body after being inflated.

5. A flexible inflatable deformable support for thermal garments according to claim 1, characterized in that: by adding different numbers of seams to the two sheets of heat-bonded films, a deformation effect is formed that the films bend to one side when inflated.