阅读说明：本技术 充气鞋撑 (Inflatable shoe stretcher ) 是由 吴小隆 林瑞峰 于 2021-09-23 设计创作，主要内容包括：本发明属于鞋撑技术领域,尤其涉及一种充气鞋撑。它解决了现有技术设计不合理等技术问题。本发明提供了一种充气鞋撑,所述充气鞋撑由两片塑料薄膜经过热封形成,所述充气鞋撑具有两个相互不连通的侧支撑气囊,以及位于两个侧支撑气囊顶侧之间的内顶面支撑气囊并且内顶面支撑气囊和侧支撑气囊相互不连通,内顶面支撑气囊用于支撑鞋面从脚趾至脚背部的内顶面,两个侧支撑气囊的前顶部内侧分别支撑于内顶面支撑气囊的前端下侧面。本发明优点在于：侧支撑气囊的前顶部内侧抵于内顶面支撑气囊的前端下侧面,利用这种方式,其可以确保内顶面支撑气囊的前端在与鞋面的最前端内顶部接触后的从下往上支撑,达到更好的立体支撑效果。(The invention belongs to the technical field of shoe stretchers, and particularly relates to an inflatable shoe stretcher. The technical problems that the design is unreasonable and the like in the prior art are solved. The invention provides an inflatable shoe stretcher which is formed by heat-sealing two plastic films, the inflatable shoe stretcher is provided with two side supporting air bags which are not communicated with each other, and an inner top surface supporting air bag which is positioned between the top sides of the two side supporting air bags, the inner top surface supporting air bag and the side supporting air bags are not communicated with each other, the inner top surface supporting air bag is used for supporting the inner top surface from toes to instep, and the inner sides of the front tops of the two side supporting air bags are respectively supported on the lower side surface of the front end of the inner top surface supporting air bag. The invention has the advantages that: the inboard front end downside that supports the interior top surface support gasbag that supports of preceding top of side support gasbag utilizes this kind of mode, and it can ensure that interior top surface supports the front end of gasbag and contact the back with the top in the foremost of vamp from up supporting down, reaches better three-dimensional supporting effect.)

1. Aerify shoe tree, aerify shoe tree and form through the heat-seal by two plastic film, its characterized in that, aerify shoe tree and have two side support gasbag (1) that do not communicate each other to and be located two side support gasbag (1) top side between interior top surface support gasbag (2) and side support gasbag (1) do not communicate each other, interior top surface support gasbag (2) are used for supporting the vamp from the interior top surface of toe to instep portion, the preceding top inboard of two side support gasbags (1) supports respectively in the front end downside of interior top surface support gasbag (2).

2. The inflatable shoe support according to claim 1, wherein the inner top support airbag (2) comprises a front support sub-airbag (20), a middle arc-shaped surface support sub-airbag (21) and a rear support sub-airbag (22) which are supported on the inner top surface of the upper and are distributed from the front to the rear of the inner top surface of the upper in sequence, and the front top inner side surfaces (12) of the two side support airbags (1) are respectively supported below the sides of the front support sub-airbag (20).

3. The inflatable shoe stretcher according to claim 2, characterized in that the rear top inner sides (1a) of the two side supporting airbags (1) are supported below the sides of the rear supporting sub-airbag (22), respectively.

4. The inflatable shoe stretcher according to claim 2, characterized in that a space is left between the middle topside inner side face (1b) of each side support airbag (1) and the middle arc-shaped face support sub-airbag (21).

5. The inflatable shoe support according to claim 1, wherein the front support sub-bladder (20), the middle arc-shaped face support sub-bladder (21) and the rear support sub-bladder (22) are connected in series.

6. The inflatable temple according to claim 1, wherein each side support airbag (1) is connected to a first inflation port (1c), and said inner top support airbag (2) is connected to a second inflation port (1 d).

7. The inflatable temple according to claim 6, wherein the first inflation inlet (1c) and the second inflation inlet (1d) are parallel to each other and are located on the same side of the inflatable temple.

8. The inflatable shoe stretcher according to claim 1, further comprising a sub-heat insulating seal line (1e) for dividing the middle arc-shaped face support sub-airbag (21) into two strip-shaped partition airbags (210), the sub-heat insulating seal lines (1e) being distributed along the length direction of the upper, each strip-shaped partition airbag (210) being respectively communicated with the front support sub-airbag (20) and the rear support sub-airbag (22).

9. The inflatable shoe tree according to claim 2, further comprising a side heat-seal land (1f) for contracting the middle-rear bladder diameter of each side support bladder (1), the side heat-seal land (1f) forming a lower support bladder (10) and an upper bladder diameter contraction support bladder (11) on the upper side of the lower support bladder (10) in the middle-rear portion of the side support bladder (1), the rear side of the lower support bladder (10) communicating with the rear side of the upper bladder diameter contraction support bladder (11).

10. The inflatable temple according to claim 9, wherein said side heat-seal lands (1f) are distributed along the length of the side support cells (1).

11. The inflatable last of claim 10, wherein the side of the side heat-seal lands (1f) adjacent to the upper bladder diameter contraction support air chamber (11) is an upwardly arched lower arched heat-seal edge (10 f).

12. The inflatable shoe stretcher according to claim 11, wherein there is an upper arched heat-sealing line (1g) between the middle arched face support sub-airbag (21) and the side support airbags (1), the upper arched heat-sealing line (1g) makes the bag diameter of the middle arched face support sub-airbag (21) gradually decrease from the middle to both ends, the upper arched heat-sealing line (1g) is located on the upper side of the lower arched heat-sealing edge (10f), and the upper arched heat-sealing line (1g) makes the bag diameter of the upper bag diameter shrinkage support air chamber (11) further decrease, when the two side support airbags (1) are leaned together, a gap is formed between the inward facing sections of the two side support airbags (1) located on the upper bag diameter shrinkage support air chamber (11).

13. The inflatable shoe stretcher of claim 11, wherein the bladder diameter of the lower supporting air chamber (10) is smaller than the bladder diameter of any one position of the upper bladder diameter contraction supporting air chamber (11).

14. The inflatable shoe support according to claim 12, wherein a front heat-seal line (1q) connected to a front end of the corresponding upper arch-shaped heat-seal line (1g) is provided between the front support sub-bladder (20) and the side support bladder (1), and a rear heat-seal line (1w) connected to a rear end of the corresponding upper arch-shaped heat-seal line (1g) is provided between the rear support sub-bladder (22) and the side support bladder (1).

Technical Field

The invention belongs to the technical field of shoe stretchers, and particularly relates to an inflatable shoe stretcher.

Background

The inflatable shoe stretcher expands the plastic bag body by inflation.

The existing inflatable shoe stretcher generally comprises a shoe stretcher with one air bag, two air bags and three air bags. The existing inflatable shoe stretcher cannot support the inner top of the front end of the vamp of the shoe, so that the popularization and the application have great defects.

Disclosure of Invention

The present invention is directed to the above problems and provides an inflatable shoe stretcher that solves the above problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an inflatable shoe stretcher which is formed by heat-sealing two plastic films, the inflatable shoe stretcher is provided with two side supporting air bags which are not communicated with each other, and an inner top surface supporting air bag which is positioned between the top sides of the two side supporting air bags, the inner top surface supporting air bag and the side supporting air bags are not communicated with each other, the inner top surface supporting air bag is used for supporting the inner top surface from toes to instep, and the inner sides of the front tops of the two side supporting air bags are respectively supported on the lower side surface of the front end of the inner top surface supporting air bag.

In the above-mentioned inflatable shoe stretcher, the inner top surface supporting airbag includes a front supporting sub-airbag, a middle arc surface supporting sub-airbag and a rear supporting sub-airbag which are supported on the inner top surface of the upper and are distributed in sequence from front to back with the inner top surface of the upper, and the inner side surfaces of the front tops of the two side supporting airbags are respectively supported below the side of the front supporting sub-airbag.

In the above-mentioned inflatable shoe stretcher, the inner side surfaces of the rear top portions of the two side supporting airbags are respectively supported below the sides of the rear supporting sub-airbag.

In the above-mentioned inflatable shoe stretcher, a space is left between the middle top side inner side surface of each side support air bag and the middle arc surface support sub air bag.

In the inflatable shoe stretcher, the front support sub-airbag, the middle arc-shaped surface support sub-airbag and the rear support sub-airbag are communicated in sequence.

In the inflatable shoe stretcher, each side supporting air bag is respectively communicated with the first inflation port, and the inner top surface supporting air bag is communicated with the second inflation port.

In the above-mentioned inflatable shoe stretcher, the first inflation inlet and the second inflation inlet are parallel to each other and are located on the same side of the inflatable shoe stretcher.

In the above-mentioned shoe stretcher of aerifing, the shoe stretcher of aerifing still including be used for with middle arcwall face supports the sub-gasbag and separates the separation heat-seal line of gasbag into two bars, separates the heat-seal line and distributes along vamp length direction, and each bar is separated the gasbag and is communicate with preceding support sub-gasbag and back support sub-gasbag respectively.

In the above-mentioned inflatable shoe stretcher, the inflatable shoe stretcher further comprises a side heat sealing area for contracting the mid-rear bladder diameter of each side support bladder, the side heat sealing area enables the mid-rear portion of the side support bladder to form a lower support bladder and an upper bladder diameter contracting support bladder located at the upper side of the lower support bladder, and the rear side of the lower support bladder is communicated with the rear side of the upper bladder diameter contracting support bladder.

In the above inflatable shoe tree, the side heat-sealed regions are distributed along the length direction of the side support cells.

In the inflatable shoe stretcher, one side of the side heat sealing area close to the upper bladder diameter contraction supporting air chamber is an upward arched lower arch heat sealing edge.

In the above-mentioned inflatable shoe stretcher, there is the last arch heat seal line of arch down between middle arcwall face support sub-gasbag and the collateral branch support gasbag, last arch heat seal line make the bag footpath of middle arcwall face support sub-gasbag dwindle from the middle part to both ends gradually, go up arch heat seal line and be located arch heat seal upside down, and go up arch heat seal line and make the bag footpath of going up bag footpath shrink support air chamber further reduce, when two collateral branch support gasbags relied on together, two collateral branch support gasbags lie in one section of bag footpath shrink support air chamber and form the clearance between the inboard in opposite directions.

In the inflatable shoe stretcher, the bladder diameter of the lower supporting air chamber is smaller than the bladder diameter of any one position of the upper bladder diameter contraction supporting air chamber.

In the above-mentioned inflatable shoe stretcher, a front heat-sealing line connected to the front end of the corresponding upper arched heat-sealing line is provided between the front support sub-bag and the side support bag, and a rear heat-sealing line connected to the rear end of the corresponding upper arched heat-sealing line is provided between the rear support sub-bag and the side support bag.

Compared with the prior art, the invention has the advantages that:

interior top surface supports the gasbag and is used for supporting the vamp from the toe to the interior top surface of instep portion, the preceding top inboard that two sides supported the gasbag supports the front end downside of gasbag in interior top surface respectively, promptly, the preceding top inboard that the gasbag was supported in interior top surface supports the front end downside of gasbag, utilize this kind of mode, it can ensure that interior top surface supports the front end of gasbag and contact the back with the vamp in the top in the foremost from up supporting down, reach better three-dimensional supporting effect.

The inner sides of the front tops of the two side supporting air bags are supported, and the two sides of the upper are limited for the two side supporting air bags, at the moment, the two sides of the most front end of the inner top supporting air bag are supported by opposite forces, so that the position of the top supporting surface of the most front end of the inner top supporting air bag is in a stable state, and the inflatable shoe stretcher of the embodiment has good supporting performance.

The rear support sub-bladder may support the rear side of the vamp top surface, or, of course, the free end with the tongue.

Drawings

Fig. 1 is a schematic perspective view of the inflatable shoe tree according to the present invention.

Fig. 2 is a schematic structural view of the front end of the inflatable shoe stretcher provided by the invention.

Fig. 3 is a schematic view of the rear end structure of the inflatable shoe stretcher provided by the invention.

Fig. 4 is a structural diagram of the inflatable shoe stretcher provided by the invention in an unfolded state.

FIG. 5 is a schematic view of a lateral cross-sectional configuration of a side support balloon provided in accordance with the present invention.

FIG. 6 is a schematic diagram of a cross-sectional view of a mid-curved support sub-airbag in accordance with the present invention.

FIG. 7 is a schematic view of the heat-sealed uninflated state of the inflatable shoe stretcher provided by the present invention.

FIG. 8 is a schematic view of the structure of the film residue for rolling provided by the present invention.

In the figure, a side supporting airbag 1, a rear top inner side surface 1a, a middle top side inner side surface 1b, a first inflation port 1c, a second inflation port 1d, a separating heat-seal line 1e, a side heat-seal area 1f, a lower arched heat-seal edge 10f, an upper arched heat-seal line 1g, a front heat-seal line 1q, a rear heat-seal line 1w, a lower supporting air chamber 10, an upper bag diameter contraction supporting air chamber 11, an inner top surface supporting airbag 2, a front supporting airbag 20, a middle arc surface supporting sub-airbag 21, a strip-shaped separating airbag 210 and a rear supporting sub-airbag 22.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the present embodiment provides an inflatable shoe stretcher for supporting the upper shaping of a shoe:

specifically, the inflatable shoe tree of the present embodiment is formed by heat-sealing two sheets of plastic films, as shown in fig. 4, and the structure of the inflatable shoe tree when laid out flat is approximately triangular, for example, an isosceles triangle or the like.

As shown in fig. 1 to 4, the heat-sealed inflatable shoe tree has two side supporting airbags 1 which are not communicated with each other, and an inner top supporting airbag 2 which is located between the top sides of the two side supporting airbags 1 and the inner top supporting airbag 2 and the side supporting airbags 1 are not communicated with each other. Namely, the three air chambers are independent from each other, and the inflation quantity in each air bag can be accurately controlled in such a way, so that the inflation fullness of the shoe stretcher is ensured.

Further, each of the side supporting airbags 1 is respectively communicated with the first inflation port 1c, and the inner roof supporting airbag 2 is communicated with the second inflation port 1 d. When inflating, this embodiment directly utilizes the calabash machine to fill into gas from first inflation inlet 1c and second inflation inlet 1d, and its process is simpler for its process of the mode of inflating of each inflation inlet that utilizes the air flue to compare the tradition to and further improve and aerify heat-seal efficiency, can also energy-conserving plastic film's cost and die sinking cost simultaneously.

Preferably, the two first inflation ports 1c and the second inflation port 1d of the present embodiment are parallel to each other and located on the same side of the inflatable last. With its aerifing and the heat-seal of calabash machine of being convenient for of one side, simultaneously, the pleasing to the eye degree of product further promotes.

Of course, in order to increase the inflation speed and efficiency, the present embodiment has 1 to 6, for example, 3 first inflation ports 1c communicating with each side support airbag 1 and 1 to 4, for example, 2 second inflation ports 1d communicating with the inner roof support airbag 2, in the first inflation ports 1c communicating with each side support airbag 1.

And after the inflation is finished, the air inlets of the first inflation inlet 1c and the second inflation inlet 1d are heat-sealed directly.

Interior top surface supports gasbag 2 and is used for supporting the vamp from the toe to the interior top surface of instep portion, two preceding top inboards that the gasbag 1 was supported respectively in interior top surface support gasbag 2's front end downside, promptly, the preceding top inboard that the gasbag 1 was supported in interior top surface support gasbag 2's front end downside, utilize this kind of mode, it can ensure that interior top surface supports gasbag 2's front end and contact the back in the top in the foremost with the vamp from up supporting down, reach better three-dimensional supporting effect.

Further, because of the front top inner side supporting function of the two side supporting airbags 1 and the limitation of the two sides of the vamp to the two side supporting airbags 1, the two sides below the foremost end of the inner top supporting airbag 2 are supported by opposite forces, so that the top supporting surface position of the foremost end of the inner top supporting airbag 2 is in a stable state, and the inflatable shoe stretcher of the embodiment has very good supporting performance.

As shown in fig. 1 and fig. 5 to 6, the roof support airbag 2 includes a front support sub-airbag 20, a middle arc-shaped support sub-airbag 21, and a rear support sub-airbag 22 supported on the roof of the upper and sequentially distributed from front to rear of the roof of the upper, and the front roof inner side surfaces 12 of the two side support airbags 1 are respectively supported below the front support sub-airbag 20.

Preferably, the front supporter airbag 20 of the present embodiment is gradually reduced in width from front to rear. Namely, this structure can enlarge the supporting surface to have a better supporting effect. Of course, the front support sub-airbag 20 may have an equal width or a smaller front and a larger rear.

Preferably, the rear support sub-bag 22 of the present embodiment is equal in width from front to rear.

The above structure can facilitate manufacturing, and the rear support sub-airbag 22 can support the rear side of the vamp top surface, or the free end with the tongue.

Preferably, the front side of the front support sub-bladder 20 has an arc-shaped heat-seal line protruded from the front side of the two side support bladders 1 so that it has better fitting property with a shoe and the shoe stretcher can be accurately fitted into place.

As shown in fig. 1 to 4, the rear top inner side surfaces 1a of the two side support airbags 1 are supported below the rear support sub-airbags 22, respectively. The rear top inner side surface 1a is an arc convex surface because the air bag is inflated, and the design of the support can ensure that the rear support sub-air bag 22 also has stable support performance, so that the shoe support has good three-dimensional support effect.

A space is left between the middle top side inner side surface 1b of each side support airbag 1 and the middle arc surface support sub-airbag 21. So as to prevent the middle top side inner side surface 1b of the side supporting air bag 1 from contacting with the middle arc surface supporting sub air bag 21 to cause the middle arc surface supporting sub air bag 21 to arch upwards, thereby preventing the original shape of the vamp from being damaged.

The front support sub-airbag 20, the middle arc-shaped surface support sub-airbag 21 and the rear support sub-airbag 22 are sequentially communicated to form an inner top surface support airbag 2 which is communicated with the front and the rear, and the structure can facilitate inflation.

Preferably, the inflatable shoe support of the embodiment further comprises a separating heat-sealing line 1e for separating the middle arc-shaped surface support sub-airbag 21 into two strip-shaped separating airbags 210, the separating heat-sealing line 1e is distributed along the length direction of the upper, and each strip-shaped separating airbag 210 is respectively communicated with the front support sub-airbag 20 and the rear support sub-airbag 22.

The heat insulation seal line 1e is a straight line and is positioned at the central position of the top of the shoe stretcher.

Preferably, the inflatable shoe stretcher of the embodiment further comprises a side heat-sealed area 1f for shrinking the middle-rear bladder diameter of each side support bladder 1, the side heat-sealed area 1f enables the middle rear part of the side support bladder 1 to form a lower support air chamber 10 and an upper bladder diameter shrinkage support air chamber 11 positioned at the upper side of the lower support air chamber 10, and the rear side of the lower support air chamber 10 is communicated with the rear side of the upper bladder diameter shrinkage support air chamber 11.

The side heat-seal lands 1f make the middle rear portion of the side support airbag 1 in a U-shape, that is, the end of the middle rear portion of the U-shaped side support airbag 1 located on the lower side with respect to the side support airbag 1 does not communicate with the inside of the side support airbag 1 to provide a better elastic support.

The middle-rear bag diameter of the side support air bag 1 is contracted and then the upper bag diameter contraction support air chamber 11 is formed inside the side support air bag 1, at the moment, the outer wall of the side support air bag 1 forms a middle contraction cylindrical surface which is matched with the upper bag diameter contraction support air chamber 11, and the middle contraction cylindrical surface can form a gap with a corresponding inner side convex surface (namely, two sides of the vamp relative to the top of the instep) of the vamp, so that the corresponding inner side surface of the vamp is prevented from being arched outwards by the shoe stretcher of the embodiment, and the original three-dimensional effect of the shoe is damaged.

The side heat seal regions 1f are distributed along the longitudinal direction of the side support airbag 1. The side heat-seal lands 1f are formed in a drop shape, and the smaller width ends of the side heat-seal lands 1f are directed toward the middle of the side support airbag 1, and the side heat-seal lands 1f and the side support airbag 1 form side heat-seal contraction grooves 11f which are symmetrically distributed inside and outside, and the side notches of the side heat-seal contraction grooves near the middle of the side support airbag 1 communicate with the outside, and the rear sides of the side heat-seal contraction grooves extend to the inside of the rear ends of the side support airbag 1.

Preferably, the side of the side heat sealing area 1f close to the upper bag diameter contraction supporting air chamber 11 in the present embodiment is an upwardly arched lower arched heat sealing edge 10 f. The lower arched heat seal 10f, by virtue of its arc shape, allows the mid-posterior diameter of the side support bag 1 to be contracted by virtue of its arc-shaped design.

There is the upper arch heat-seal line 1g that arches downwards between middle arcwall face support sub-gasbag 21 and side support gasbag 1, upper arch heat-seal line 1g make the bag footpath of middle arcwall face support sub-gasbag 21 dwindle from the middle part to both ends gradually, upper arch heat-seal line 1g is located the upside of lower arch heat-seal edge 10f, and upper arch heat-seal line 1g makes the bag footpath of upper bag footpath shrink support air chamber 11 further reduce, when two side support gasbags 1 rely on together, two side support gasbags 1 lie in one section of upper bag footpath shrink support air chamber 11 and form the clearance between the inboard in opposite directions, because, the middle rear portion external diameter of two side support gasbags 1 is shrunk.

The side heat-seal shrinkage groove is communicated with the outside through a side notch close to the middle part of the side support air bag 1, so that the front side of the lower support air chamber 10 is closed, and the structure can prevent the front side of the lower support air chamber 10 from being communicated with the front side of the upper bag diameter shrinkage support air chamber 11 to form a bulge phenomenon at the communication position.

The diameter of the lower supporting air chamber 10 is smaller than that of the upper bag contracting supporting air chamber 11. A large space is formed between the two lower support air chambers 10 so that the lower support air chambers 10 can be independently supported at the insole bottom. Preferably, the bladder diameter of the present lower support air chamber 10 gradually increases from front to back.

There is a front heat-seal line 1q connected to the front end of the corresponding upper arched heat-seal line 1g between the front support sub-bag 20 and the side support bag 1, the two front heat-seal lines 1q are distributed in a splayed shape, and a rear heat-seal line 1w connected to the rear end of the corresponding upper arched heat-seal line 1g is provided between the rear support sub-bag 22 and the side support bag 1. The two rear heat-seal lines 1w are parallel to each other.

Preferably, the two side heat-seal lands 1f of this embodiment are oppositely disposed.

The two separating air bags are symmetrically distributed by a separating heat insulation seal line 1 e.

As shown in fig. 1 to 8, the manufacturing process of this embodiment is as follows:

s1, pasting the two plastic films together and feeding the plastic films into a heat sealing machine;

s2, the two plastic films pass through a shoe stretcher heat sealing die in a heat sealing machine, and the shoe stretcher heat sealing die enables the two plastic films to form heat sealing connection at the corresponding heat sealing lines and the heat sealing areas of the shoe stretcher heat sealing die, namely, a plurality of uninflated shoe stretchers a distributed at intervals are formed on the two continuous plastic films;

s3, forming a U-shaped or V-shaped tearing line at the periphery of each uninflated shoe stretcher;

s4, directly inflating the sequentially and alternately distributed uninflated shoe stretchers at inflation ports by using a hoist machine, wherein the inflation ports are a first inflation port and a second inflation port;

and S5, tearing off the tearing line after inflation to obtain a single inflatable shoe stretcher, reserving a circumferential heat-sealing edge 1S with a certain width at the edge of the inflatable shoe stretcher, and generating a continuous windable film residue 1k after tearing off the inflatable shoe stretcher.

The rollable film scrap 1k can be rolled to improve the scrap recycling efficiency.

Example two

The structure and principle of the present embodiment are basically the same as those of the first embodiment, and the different structure is as follows:

the central area of the side heat-seal lands 1f is not heat-pressed, i.e., the original two films are left in a bonded state, and the side heat-seal lands 1f are formed in a C-shape at this time.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.