WO2022059874A1

WO2022059874A1 - Air-floating-type transfer lift

Info

Publication number: WO2022059874A1
Application number: PCT/KR2021/003713
Authority: WO
Inventors: 이식용; 하관용; 신양재
Original assignee: 이식용
Priority date: 2020-09-21
Filing date: 2021-03-25
Publication date: 2022-03-24
Also published as: KR102303564B1

Abstract

The present invention provides: an air-floating-type transfer lift having greatly improved durability, wherein a metal plate material can be mounted to an air-floating body without attaching the metal plate material with an adhesive, the metal plate material is hidden from external view and thus does not degrade the external appearance of the transfer lift, and fraying of a sewn end tip cloth texture and air injection balls can be prevented; and a method for manufacturing same. To this end, a pouch fabric member is sewn to an upper fabric member of the air-floating body to form a separate pouch (an insertion space for the metal plate material), and the pouch receives the metal plate material.

Description

Air Floating Transfer Lift

The present invention relates to a floating type transfer lift used to easily move a position of a heavy object such as a refrigerator or furniture installed indoors without damage due to scratching of the floor when changing the position.

Each home or corporate office is equipped with a variety of heavy goods, including household appliances and furniture, such as refrigerators, drum washing machines, and dryers.

However, home appliances including refrigerators (hereinafter referred to as including furniture installed indoors), etc. are installed indoors or installed and moved to another location in the room or moved to another place in order to change the installation location while in use, etc. In the case of moving the refrigerator to a location away from the wall, especially for painting, etc., or when the refrigerant compressor or refrigerant circulation pipe breaks down while using the refrigerator, etc. And when repairing the refrigerant circulation system, it is not easy for a repairman to access it, so it is often the case that the refrigerator is taken out to an indoor space where it is easy to repair, repaired, and then installed by moving it back to its original location.

In this way, when moving the location including installation and repair of the refrigerator, conventionally, after placing a blanket (blanket, quilt, or carpet) on the floor, hold the refrigerator on top of it, grab the blanket and move it to the desired space to move it to the desired location on the floor. to prevent damage caused by scratches.

However, this conventional manual method has a problem of causing damage and contamination of the blanket in the process of pulling the blanket and moving it around because the refrigerator is usually full of containers containing various foods and has a considerable weight.

In consideration of this point, recently, an air-floating type transfer lift capable of easily moving heavy home appliances or furniture, such as a refrigerator, has been proposed and widely used.

1 is an air-floating type transfer lift 10 used in the market recently, and a pair of left and right air-lifting bodies 12 and these air-floating bodies 12 positioned side by side at a predetermined distance from each other and

hoses

14 and 16 , 16) includes a compressed air pump (18) for supplying compressed air through.

2 is a cross-sectional view of the air-floating type transfer lift 10 of FIG. 1, wherein the air-floating body 12 is between the lower cloth member 22 and the upper cloth member 24 sewn together with the four-sided edges, that is, It has an air filling space 24 therein, and this air filling space 24 is in communication with a compressed air pump 18 that supplies compressed air through

hoses

14 , 16 , 16 .

In the hose 14, two

hoses

16 and 16 are branched to the left and right sides at the branch connection part 26, and the high-pressure compressed air generated and supplied when the compressed air pump 18 is operated is supplied to the hose 14 and the left and right sides. It is configured to flow into the air filling space 24 which is the inside of the air floating body 12 through the connecting port 28 to the

branched hoses

16 and 16 and the air floating body 12 .

The lower fabric 24 of the air floating body 12 has a number of air blowing holes 30 of 0.1 to 5 mm in size, preferably 0.1 to 0.4 mm in size, so that the air is introduced into the air filling space 24. The high-pressure compressed air is to be sprayed toward the floor through the air blowing holes 30 .

Accordingly, for example, when the location of the refrigerator 32 is moved for painting or repairing a malfunction, the lower space of the refrigerator 32 (the bottom surface of the refrigerator is usually equipped with wheels or support legs to form a space between the refrigerator 32 and the bottom surface 36 ) A pair of left and

right air floats

12 and 12 are inserted at a predetermined interval with a space equivalent to the height of the support leg).

The

air floats

12 and 12 have a flat shape at this stage, but when the compressed air pump 18 is operated, the compressed air is introduced into the air filling space 24 inside the

air floaters

12 and 12, As the upper fabric 22 is inflated by air pressure, the air-filled space 24 swells, and the

air floating body

12, 12, which was flat by this, is placed on the upper fabric 22, and the refrigerator 32 is placed on it. position will rise.

However, since the compressed air pressure has a greater force than the weight of the refrigerator, the compressed air supplied to the air charging space 24 is ejected to the outside through the many air ejection holes 30 perforated in the lower fabric member 20, By the reaction force when the compressed air pressure ejected acts on the floor surface 36 of the room, the

air floating bodies

12 and 12 are slightly lifted from the floor surface 36 .

In this state, the frictional force between the floor surface 36 and the floor surface 36 is minimized, and when the operator lightly pushes the refrigerator 32 by hand, the

air floaters

12 and 12 slightly levitated from the floor surface 36), it is easily moved without friction with the refrigerator 32, and even if the refrigerator 32 is heavy because it contains various foods, it is possible to freely move it to a desired position without damaging the bottom surface 36.

However, since the upper and

lower fabric members

22 and 20 of the

air floaters

12 and 12 are very flexible materials, the balance of the refrigerator 32 is not out of balance when supporting the heavy-duty refrigerator 32 and may be overturned. There are concerns and stability is required.

In consideration of this point, a metal plate 38 such as aluminum or stainless steel is attached on the upper cloth member 22 of the

air floating body

12 and 12, and the refrigerator etc. It is constructed to prevent unbalance of the supporting articles of

However, the method of attaching the metal plate 38 on the upper fabric 22 of the air-lifting

body

12, 12 as described above has several problems, so improvement is required.

First, the metal plate 38 and the cloth member 22, which is a fabric material, have a problem of low adhesive performance even if a bond adhesive is used because the material is different from each other,

Second, the adhesive is vulnerable to moisture and hardens over time, resulting in a decrease in adhesive strength, so that the metal plate 38 easily falls off and has a low durability,

Third, it is difficult to match the colors of the metal plate 38 and the fabric 22 with each other, so the aesthetics are not good due to the difference in color. If the painting is peeled off due to friction contact by

Fourth, in sewing the edges of the upper cloth member 22 and the lower cloth member 20 of the

air floaters

12 and 12, the edge is exposed to the outside, so the aesthetics is not good, and the exposed ends of the cloth members are cloth The tissue becomes tattered during use, resulting in fluff,

Fifth, small-sized air blast holes are formed with an awl or a drill, so the hole is clogged or tattered due to fluff, which is unsightly.

Sixth, there are several problems, such as difficulty in forming the air injection holes and the hose connection hole in the correct position.

Accordingly, the present invention has been proposed in view of the above points, and its purpose is to be able to mount a metal plate without adhering to the air-floating body, and to treat the metal plate so that it is not exposed to the outside, so that it does not impair the aesthetics, and sewing An object of the present invention is to provide an air-floating type transfer lift and a method for manufacturing the same, which can prevent the tattering of the treated end fabric and air injection holes and significantly improve durability.

In order to achieve the above object, the air-floating transport lift of the present invention has an air filling space between the upper fabric for supporting the weight to be mounted, and the lower fabric having a plurality of air blowing holes, and a compressed air pump Compressed air is introduced into the air filling space through the hose and the hose connection port from the outside and expands, and the compressed air is sprayed to the floor through the air jet holes to be floated from the floor. and a pocket cloth member having a metal plate insertion space (bag) on the upper portion of the upper cloth member is sewn, characterized in that the metal plate material is inserted into the metal plate insertion space by the pocket cloth member.

In the present invention, the air jet holes are formed in a plurality of rows with a size of 0.1 to 0.5 mm, and the holes in the adjacent rows are formed in a zigzag displaced from each other.

The manufacturing method of the air-floating body of the air-floating type transfer lift of the present invention is a method of manufacturing an air-floating body that receives high-pressure compressed air from a compressed air pump through a hose and a hose connection port and floats on the floor surface, the upper Cutting the waterproof fabric to form a single body in an unfolded form of the fabric member and the lower fabric member; Folding the waterproof fabric in half along the boundary line of the upper and lower fabric members; Laminating a bag fabric member on one side of the waterproof fabric folded in half and then sewing the remaining three sides along the edge in a U-shape except for one side opening to cut into an envelope shape with one side open; a reversing step of turning the envelope over with the bag fabric as a starting point after the sewing so that the sewn end portion enters the inside; inserting an iron plate support member between the upper and lower fabric members to support the lower fabric member; forming air jet holes by adhering a jig plate having small holes to the outside of the lower fabric member and melting the lower fabric member by using an electric iron through the small holes; A jig plate having a hole for forming a hose connection hole is closely attached to one end of the outer surface of the bag fabric member, and a hose connection hole is formed in the pocket fabric member and the upper fabric member at the same time by pressing with an electric iron through the hole of the jig plate step; After removing the iron plate support member and the jig plate, inserting a metal plate having a hose connection hole into the space between the upper fabric member and the bag fabric member; inserting the screw nipple of the hose connection port exposed to the air filling space through the hole and fastening both ends of the screw nipple with nuts to fix and mount the hose connection port; and sealing the inverted envelope by sewing an open part of one end.

According to a preferred embodiment of the present invention, a jig plate having a hole for forming the iron plate support member or the hose connection hole is characterized in that the metal plate material inserted into the metal plate material insertion hole is used.

As such, the present invention does not require bonding to the outer surface of the fabric as the metal plate supporting the heavy object to prevent overturning is inserted into a separate pocket of the air float, so there is no problem of durability deterioration due to adhesion and there is no color difference. And there is no fluff or tattering because the sewing part of the air float is not exposed to the outside.

In addition, since the hose connection hole and the air blowing hole of the air float are formed with an electric iron using a jig plate of a special structure, the occurrence of fluff on the inner peripheral surface of the hole and clogging of the hole and deterioration of the aesthetics by tattering are prevented, and heavy objects are moved It has the effect that there is no fear of overturning.

In particular, in the conventional case, the holes are first formed in the fabric and then the sewing process is performed, so the positions of the holes are not accurate and misaligned. It is possible to form in the correct position.

In addition, since the hand strap can be attached to the tip of the air float, there is an effect that the air float can be easily moved by holding the hand strap and pulling it without applying force such as pulling the hose or pushing the payload.

1 is a view showing an air-floating type transfer lift according to the prior art.

Figure 2 is a cross-sectional view showing the air floating body portion in Figure 1.

3 is a view showing an air-floating type transfer lift according to the present invention.

Figure 4 is a view showing the bottom surface of the air floating body according to the present invention.

Figure 5 is a view showing a metal plate material embedded in the air floating body according to the present invention.

Figure 6 is a cross-sectional view showing the structure of a hose connector for connecting a hose connected to supply compressed air to the air floating body according to the present invention.

7 is a view showing the process of manufacturing the air floating body of the present invention, (a) is a view showing the cutting state of the waterproof fabric having an upper and lower fabric member, (b) is a cutting state of the pocket fabric member It is a drawing, (c) is a view showing a state in which the waterproof fabric is folded in half based on the central axis and the bag fabric member is laminated thereon.

(a) of FIG. 8 is a view showing a state in which the three-layer laminate of FIG. 7(c) is sewn along the edge of the remaining three sides except for the opening on one side to form an envelope, (b) is an envelope It is a view showing the shape of the sewn product by cross-section in a direction perpendicular to the longitudinal direction, and (c) is a cross-sectional view showing the shape of the bag-shaped sewing product turned upside down through the metal plate insertion space (bag).

9 is a view showing a method of forming an air jet, (a) is a view showing a process of forming the air blow hole in the lower fabric using a jig plate and an electric iron, (b) is a view showing the air blow hole It is a perspective view showing the jig plate used for formation.

10 is a view showing a method of forming a hole for installing a hose connection port, (a) is a view showing a process of forming a hose connection port installation hole using a jig plate and an electric iron, (b) is a hose connection port It is a perspective view showing a jig plate used to form an installation hole.

11 is a cross-sectional view showing a state in which the metal plate material is inserted into the metal plate material insertion space of the inverted envelope-shaped sewing material.

12 is a view showing a state in which the open mouth is sewn and sealed after the metal plate is inserted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Examples of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows It is not limited to an Example. Rather, these examples are provided so that this disclosure will be more thorough and complete, and will fully convey the spirit of the invention to those skilled in the art.

In addition, in the following drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description, and the same reference numerals in the drawings refer to the same elements.

The terminology used herein is used to describe specific embodiments, not to limit the present invention. As used herein, the singular form may include the plural form unless the context clearly dictates otherwise. Also, as used herein, “comprise” and/or “comprising” refers to the specific existence of the recited shapes, numbers, steps, actions, members, elements and/or groups thereof. and does not exclude the presence or addition of one or more other shapes, numbers, movements, members, elements and/or groups.

Figure 3 is a cross-sectional view showing an air-floating type transfer lift according to an embodiment of the present invention, and is shown in cross-section of the air-floating body portion, Figure 4 is a bottom view shape of the air-floating body of the present invention, Figure 5 is this It is a view showing the shape of a metal plate accommodated in the metal plate insertion space of the air floating body of the present invention, Figure 6 is an enlarged cross-sectional view of the hose connection port of the air floating body of the present invention.

Referring to Figure 3, the air-floating type transfer lift of the present invention is indicated by the symbol 50 as a whole, and roughly divided into two pairs of an air-floating body 52 and a hose part 54 and compressed air of the same structure. It consists of a pump (56).

The hose unit 54 includes a main hose 58 connected to the outlet end of the compressed air pump 56 and a pair of left and right branch hoses branched from the main hose 58 into two branches through a branch connection member 60 . (62), and each branch hose (62, 62) is spaced apart from each other and is connected to a pair of air floats (52, 52) through a hose connection port (64).

The air float 52 is a kind of air bag, and the upper fabric 68 and the lower fabric 70 are made of a waterproof fabric (natural or synthetic resin material) to form an air filling space 66 into which compressed air is introduced. and a bag cloth member 74 that is laminated to form a metal plate insertion space 72 (bag) on the upper portion of the upper cloth member 68, and the three-layer stacking member, that is, the upper and lower cloth combined with each other. Since the

members

68 and 70 and the bag fabric 74 have their four edges sealed by sewing 76, an air filling space 66 is formed between the upper and

lower fabric members

68 and 70, and the upper fabric member A metal plate insertion space 72 is formed between 68 and the bag fabric member 74, and in the metal plate insertion space 72, the metal plate 78 shown in FIG. 5, for example, an aluminum or stainless plate material. is built-in

Figure 4 is a bottom view shape of the air floating body 52, the lower fabric 70 is 0.1 to 5mm, preferably 0.1 to 0.5mm, more preferably the air blowing holes 80 of the size of 0.2mm are It is formed to communicate inside and outside, but the air jetting holes 80 are perforated in a plurality of rows on the bottom surface of the lower fabric 70, and these holes 80 arranged in a plurality of rows are also formed side by side with each other. It is possible, but it is preferable to arrange the holes in adjacent rows in a zigzag displaced from each other.

A hose connection port 64 is provided inside the sewing line 76a near the tip 82 of one side forming the trapezoidal shape of the air floating body 52, and the hose connection port 64 has a male thread 82 formed on the outside. The screw nipple 84 with both ends open, and the inner nut 86 screwed with the screw nipple 84 and located at the bottom inside the upper fabric 68, and a washer 88 and a pocket for sealing It is configured to include an outer nut 90 screwed to the protruding end of the screw nipple 84 protruding upward from the outside of the cloth member 74 .

The screw nipple 84 penetrates through the

insertion holes

92a, 92b, and 92c formed in the bag fabric 68, the metal plate 78, and the upper fabric 68, and the lower end is in the air filling space 66. It protrudes and the upper end is fitted in a form that protrudes to the upper part of the pocket fabric member 74, and the washer 88 with a hole is inserted into the screw part protruding into the inner space 66 to fasten the inner nut 86, When the washer 88 is added to the screw portion protruding upward from the side and the outer nut 90 is firmly tightened and screwed together, the fixed installation is completed.

A separate hose fastener 94 is screwed to the upper end of the screw nipple 84 , and a branch hose 62 is connected to the hose fastener 94 .

And a rivet body 96 with a hole in the center of the one end 82 protruding to one side in a trapezoidal shape penetrates through the three-

layer fabric members

74, 68, 70 stacked in diameter at both upper and lower ends. It is bound by a flange, and the hand strap 98 is attached to the center hole of the rivet body 96 (via a separate ring), and the air floating body 52 is pulled and moved using the hand strap 98. .

7 to 12 are views for explaining the manufacturing method of the air floating body of the present invention, the upper cloth member 68 and the lower cloth member 70 are stretched to form a single body in an elongated rectangular shape waterproof cloth 100 ) is cut (see Fig. 7 (a)), and at the same time, the bag fabric member 74 is also cut to the same size and shape (see Fig. 7 (b)). At this time, one end (82, 82) can be cut in a trapezoidal shape.

The waterproof fabric 100 is folded in half based on the center line (X-X), and the pocket fabric member 74 is fitted to the outside of one side here (see (c) of FIG. 7).

The

fabric members

68, 70, 74 matched in three layers are sewn 76 in a U-shape along the edge of the three sides, leaving only one end, that is, the end 82 of the trapezoidal shape, to the end 82 of the trapezoidal shape. makes an envelope shape 102 with an opening. When the bag shape 102 is made of a sewing material,

spaces

66a and 72a are respectively formed between the upper and

lower fabric members

68 and 70 and between the upper fabric 68 and the bag fabric 74 ( 8 (a) and (b)).

Next, the bag fabric 74 is turned over through the space 72a.

When turned over, the envelope 102 is inverted and the inner surface of the bag fabric 74 becomes the outer surface, and the sewing part 76 is located inside the

spaces

66 and 72 formed by inversion, and is originally from the previous stage envelope. The upper fabric 68 is positioned at a symmetrically opposite position with the bag fabric 74 and the lower fabric 70 interposed therebetween. are in contact with each other and face each other, and the lower fabric 70 is positioned opposite to the pocket fabric 74 with the upper fabric 68 interposed therebetween (see (c) of FIG. 8).

Then, insert the iron plate support member 104 through the opening (82 side open state) into the air filling space 66 of the inverted envelope 102a sewing material to closely support the lower fabric member 68 ( A metal plate material 78 can be used as this iron plate supporting member), a plurality of rows of holes 106 (these holes are approximately the same size as the air blowing holes 80) on the outside of the lower cloth member 68 In a state in which the provided jig plate 108 is in close contact, the heat transfer rod 112 of the electric iron 110 (approximately the same as the diameter of the hole 106 or has a small size to the extent that it is slightly loose) is inserted into the hole 106, The lower fabric 68 in contact with the heat transfer rod 112 is melted in a circle to form a hole, that is, an air filling hole 80 , and this operation is performed for every hole 106 . At this time, the adjacent rows of the holes 106 are in a zigzag shape shifted from each other, and the holes are also arranged in a diagonal row (see FIG. 9 ).

Next, remove the jig plate 108 and support the upper fabric 68 instead of leaving the iron plate supporting member 104 as it is, and a hole 114 on one side from the outside of the pocket fabric 74 (this hole) The jig plate 116 (this jig plate 116 may be used instead of the metal plate of FIG. 5 ) on which the outer diameter dimension of the screw nipple 84 of the silver hose connection port is equal to or slightly larger than that of the hose connector is closely attached to the electric iron 110 ) of the heat transfer rod 112a (the diameter of the heat transfer rod at this time is the same as the hole 114 or has a size that is slightly loose) into the hole 114, and the pocket fabric 74 and the upper fabric 68 ) are melted at the same time to form holes of the same diameter, that is, hose connection holes 92a and 92c.

In this state, the iron plate supporting member 104 and the jig plate 116 are removed, and the metal plate 78 shown in FIG. 5 is inserted into the metal plate insertion space 72 to match the

holes

92a, 92b, and 92c. After installing the screw nipple 84 through these holes in the state of 6) The opening of the trapezoidal tip 82 is also sewn in a trapezoidal shape (76a) to seal the air filling space 66 and the metal plate inserting space 72.

Next, optionally, a hole is formed in the trapezoidal tip 82, and the rivet body 96 is driven and pressed to form a flange, so that the extended flanges on both sides cover and protect the periphery of the hole, and the rivet body 96 is By placing a ring-shaped ring in the center hole, the hand strap 98 can be attached.

Hereinafter, the use of the air-floating type transfer lift 50 of the present invention will be described.

When not in use, the air-lift type transfer lift 50 is stored in a removable bag or box in a state in which three parts of the compressed air pump 56 and hoses 54: 58, 62 and the air-floating body 52 are usually separated. When used to move heavy items such as refrigerators, the main hose 58 is connected to the outlet of the compressed air pump 56 , and the branch hose 62 is a screw nipple protruding to the outside of the hose connection port 64 . When the separate hose fastener 94 provided at the tip of the branch hose 62 is fastened to the 84, the work preparation is completed.

In this state, the air floating body 52 is in a flat state, and the two

air floating bodies

52 and 52 are pushed through the space under the refrigerator to maintain stability in terms of the center of gravity of the refrigerator. Adjust to keep

Next, when the switch of the compressed air pump 56 (this pump can be carried on the shoulder of the operator using a shoulder strap and move along the operator) is turned on to supply electricity, the compressed air pump 56 is driven while the high pressure Compressed air is blown into the air filling space 66 through the main hose 58 , the branch hose 62 , and the hose connection port 64 . At this time, the switch of the compressed air pump 56 may be configured in a volume type, and the air pressure may be adjusted by controlling the rotation speed of the motor in stages, thereby gradually increasing the rotation speed of the compressed air pump 56 at the start of the work to levitate the air. The sieve 52 is gradually expanded to improve stability, and it is possible to secure an appropriate frictional force in response to the weight of the load. will not cause

When high-pressure compressed air is introduced into the air filling space 66 , the space between the upper and

lower fabric members

68 and 70 is widened and the air filling space 66 is expanded.

However, since the lower fabric member 70 is in close contact with the indoor floor surface 36, the upper fabric member 68 first swells and pushes up the refrigerator 32 mounted on the upper part. As the internal pressure increases, air is ejected to the floor through the air ejection holes 80 .

However, the jetted air collides with the indoor floor (36: see FIG. 2) while applying a repulsive force vertically upward, so that the air floating body 52 floats slightly upward from the floor surface 36, and the floor surface 36 and of frictional contact is greatly alleviated.

In the floating state of the air floating body 52 , when a slight horizontal pushing force is applied to the mounted refrigerator 32 , it moves smoothly, and at this time, the frictional contact with the bottom surface 36 is reduced to reduce the frictional contact with the bottom surface 36 . It can be moved with little or no force by pushing or pulling in the horizontal direction without damaging the device.

Here, in the present invention, the hand strap 98 is attached to the tip of the air-lifting body 52, and when the operator grabs and pulls the hand strap 98, the air-lifting body 52 is easily moved while the refrigerator is mounted. Therefore, the worker can easily move the refrigerator to any desired location.

In this way, if the movement of the air floating body 52 to the desired position is completed, the operator turns off the switch of the compressed air pump 56 or gradually lowers the compressed air pressure supplied through the stepwise operation of the volume. , in conjunction with this, as the pressure inside the air charging space 66 decreases, its volume is gradually reduced by the load of the refrigerator, and the expanded upper fabric 68 descends. Finally, when the pump is turned off, the air charging space 66 All of the air in it will escape and it will become flat.

However, at this time, the refrigerator, which descended before the air charging space 66 is completely flat, is seated first by its support legs contacting the bottom surface 36, and after that, all the air in the air charging space 66 is discharged and air When the floating body 52 is flattened, close contact with the bottom of the refrigerator is released, and the air floating body 52 is pulled toward the operator and taken out from the bottom of the refrigerator, thereby ending the moving operation of the refrigerator.

If the refrigerator is to be moved to its original installation position, the left and right air-lifting bodies 52 are again supported in the lower space of the refrigerator (wheels or support legs on the floor surface, so that a predetermined space is formed between the bottom surface of the refrigerator and the floor surface) ) to adjust the spacing properly and start the compressed air pump. Then, the air floating body 52 is expanded and floated again. In this state, the refrigerator body is moved by hand to return it to its original position, and then the compressed air pump is turned off to put the refrigerator down on the floor.

Although the movement of the refrigerator has been described above, not only the refrigerator but also various heavy objects, for example, a washing machine or furniture, can be easily moved in the same way.

It is common in the art to which the present invention pertains that the present invention described above is not limited to the above-described embodiments and the accompanying drawings, and that various substitutions, modifications and changes are possible within the scope without departing from the technical spirit of the present invention. It will be clear to those who have knowledge.

{description of code}

50: air floating type transfer lift 52: (a pair) air floating body

54: hose part (58: main hose, 62: branch hose)

56: compressed air pump 60: branch connection member

64: hose connection port 66: air filling space

68: upper fabric 70: lower fabric

72: metal plate insertion space 74: pocket fabric

76, 76a: sewing (line) 78: metal plate

80: air vent 82: one side tip

84: screw nipple 86: inner nut

88: washer 90: outer nut

92(a,b,c): (thread nipple) insertion hole 94: Hose fastener

96: rivet body 98: handle strap

100: waterproof fabric 102: bag-shaped sewing

102a: inverted envelope shape sewing material 104: iron plate support member

106: hole 108: jig plate

110: electric iron 112,112a: electric heating rod

32: refrigerator 36: building floor

Claims

An air filling space is provided between the upper fabric supporting the mounted weight and the lower fabric having a plurality of air blowing holes, and compressed air flows into the air filling space from the compressed air pump through a hose and its hose connection port. It expands and sprays compressed air to the bottom surface through the air jet holes and is configured to include a pair of air floats that are lifted from the bottom surface, and a bag cloth having a metal plate insertion space on the upper portion of the upper cloth member. The ashes are sewn, and the air-floating type transfer lift, characterized in that the metal plate is inserted into the metal plate insertion space by the bag fabric member.
The method of claim 1,

The air blowing holes are formed in a plurality of rows with a size of 0.1 to 0.5 mm, and the holes in the adjacent rows are formed in a zigzag displaced from each other.
In the manufacturing method of an air flotation body that receives high-pressure compressed air from a compressed air pump through a hose and a hose connection port and floats on the floor, the waterproof fabric is cut to form a single body in an unfolded form with an upper fabric member and a lower fabric member step; Folding the waterproof fabric in half along the boundary line of the upper and lower fabric members; Laminating a pocket fabric member on one side of the waterproof fabric folded in half and then sewing the remaining three sides in a U-shape along the edge except for one side opening, cutting the bag into an open envelope shape; a reversing step of turning the envelope over from the bag cloth member after the sewing so that the sewn end portion enters the inside; inserting an iron plate support member between the upper and lower fabric members to support the lower fabric member; forming air blow holes by adhering a jig plate having small holes to the outside of the lower fabric member and melting the lower fabric member by using an electric iron through the small holes; A jig plate having a hole for forming a hose connection hole is closely attached to one end of the outer surface of the bag fabric member, and a hose connection hole is formed in the bag fabric member and the upper fabric member at the same time by pressing with an electric iron through the hole of the jig plate step; After removing the iron plate support member and the jig plate, inserting a metal plate having a hose connection hole into a space between the upper fabric member and the bag fabric member; inserting the screw nipple of the hose connection port exposed to the air filling space through the hole and fastening both ends of the screw nipple with nuts to fix and mount the hose connection port; The manufacturing method of the air-floating body of the air-floating type transfer lift, characterized in that it comprises a; sealing the sealing by sewing the opening of one end of the inverted envelope.
4. The method of claim 3,

A method of manufacturing an air-floating body of an air-lift type transfer lift, characterized in that using a metal plate inserted into the metal plate insertion hole as a jig plate having a hole for forming the iron plate support member or hose connection hole.