PERSON WRAPPING DEVICE
20240023652 ยท 2024-01-25
Inventors
Cpc classification
A41D19/04
HUMAN NECESSITIES
International classification
Abstract
A person wrapping device is disclosed. The person wrapping device makes possible to perform welding partially without interruption along the contour of a part of a human body. The person wrapping device causes a first film and a second film to adhere to a part of a human body as a target portion. The person wrapping device includes a bonding unit, a heating unit, and a heating controller. The bonding unit is dividing into a plurality of linear portions. The heating unit includes a plurality of heat wires provided for each of the plurality of linear portions. The heating controller individually controls a heating temperature for each of the plurality of heat wires.
Claims
1. A person wrapping device for causing a first film and a second film to adhere to a part of a human body as a target portion, comprising: a bonding unit for bonding the first film and the second film along a contour of the target portion in a state where the target portion is disposed between the first film and the second film; a heating unit for heating the first film and the second film in a state where the first film and the second film are bonded to each other in the bonding unit; and a heating controller for controlling the heating unit, wherein the bonding unit is divided into a plurality of linear portions, wherein the heating unit includes a plurality of heat wires provided for each of the plurality of linear portions, and wherein the heating controller individually controls a heating temperature for each of the plurality of heat wires.
2. The person wrapping device according to claim 1, wherein the plurality of heat wires include a melt-cutting heat wire for melt-cutting unnecessary portions of the first film and the second film by heating, and a welding heat wire for welding the first film and the second film to each other by heating.
3. The person wrapping device according to claim 2, wherein the welding heat wire is provided in a linear portion where tension of the first film and the second film is relatively high among the plurality of linear portions.
4. The person wrapping device according to claim 2, wherein the heating controller heats the welding heat wire, and heats the melt-cutting heat wire after a predetermined cooling time.
5. The person wrapping device according to claim 3, wherein the heating controller heats the welding heat wire, and heats the melt-cutting heat wire after a predetermined cooling time.
Description
BRIEF DESCRIPTION OF DRAWINGS
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DESCRIPTION OF EMBODIMENTS
[0037] Hereinafter, the embodiments of the invention are described based on the drawings. In the following description, the same reference numeral is used to represent identical or similar components, and the explanation of such components is omitted or simplified. Some components are omitted from the drawings in order to show a configuration of essential components in a clear and concise manner.
[0038]
[0039] A human body wrapping device 1 of the present embodiment is a device bringing so-called wrap films into close contact with respect to an entire outer surface of each of both hands as a part of a human body. As illustrated in
[0040]
[0041] As illustrated in
[0042] The pair of accommodation recesses 120 are arranged side by side in a left-right direction, and the respective accommodation recesses 120 are formed so as to follow outer shapes of the frame-shaped portions 13A and 13B to be described later. At front ends of the accommodation recesses 120, semicircular cutout end portions 121 are formed so as to follow wrists when hands are inserted into the frame-shaped portions 13A and 13B.
[0043] As illustrated in
[0044] The plate portion 130 has an outer peripheral shape in plan view that matches an inner peripheral shape in plan view of the accommodation recess 120, and is formed so as to extend outward from an outer periphery of the hand shape portion 131. The hand shape portion 131 is a portion on which the left hand or the right hand is placed in a state where a wrap film (lower-side film F1 illustrated in
[0045]
[0046] As illustrated in
[0047] The plane portion 220 has an overall shape in plan view of about half of the upper mount 12 of the stationary unit 10, and is formed in a rectangular shape so as to extend outward from an outer periphery of the hand shape portion 221. The hand shape portion 221 is a portion where the left hand or the right hand is sandwiched between the hand portion 221 and the stationary unit 10 in a state where the back of hand facing upward and the wrap film (upper-side film F2 illustrated in
[0048] Next, one frame-shaped portion 22B will be described in detail with reference to
[0049] As illustrated in
[0050] A surface of the hand shape portion 221 and a surface of the bonding portion 222 are applied with a fluorine glass coating such that the wrap films are less likely to adhere thereto. As a result, the upper-side film F2 disposed between the back of hand and the hand shape portion 221 is more likely to be brought into close contact with the hand than the hand shape portion 221, and the upper-side film F2 adhered to the hand is less likely to be peeled off from the hand due to the unnecessary portion being separated. Surfaces of the frame-shaped portions 13A and 13B of the stationary unit 10 are also applied with a fluorine glass coating, and the lower-side film F1 adhered to the hand is less likely to be peeled off from the hand.
[0051] As illustrated in
[0052] The melt-cutting heat wire 2201 is for cutting off an unnecessary portion on an outer side of the hand by melt-cutting while welding a portion where the lower-side film F1 and the upper-side film F2 are bonded along the bonding portion 222, and is provided so as to divide an entire circumference of the bonding portion 222 into twenty-three sections. The welding heat wire 2202 is for performing only welding on the portion where the lower-side film F1 and the upper-side film F2 are bonded along the bonding portion 222. The melt-cutting heat wire 2201 is divided in a range in which a temperature rises at the same pace and drops at the same pace when a current is turned on and off over the entire circumference of the bonding portion 222. For example, the melt-cutting heat wire 2201 is disposed along the bonding portion 222 having a shape on an outer periphery of the hand illustrated in the example of the present embodiment, and at a fingertip portion, a finger middle portion, and a finger root portion, rates of rise and fall of temperature are different when the current is turned on and off due to a difference in distance from another melt-cutting heat wire 2201. Therefore, the melt-cutting heat wire 2201 is disposed as being divided into the fingertip portion, the finger middle portion, and the finger root portion. In addition, in the melt-cutting heat wire 2201, rates of rise and fall of temperature are different at a straight-line shaped portion and a curved portion when the current is turned on and off. Therefore, the melt-cutting heat wire 2201 is disposed as being divided into the straight-line shaped portion and the curved portion.
[0053] The welding heat wire 2202 is provided at a portion between fingers or a portion close to the wrist where the tension of the lower-side film F1 and the upper-side film F2 becomes relatively large due to the complicated contour of the hand, and is formed at a position closer to the hand than the melt-cutting heat wire 2201 while being adjacent to the melt-cutting heat wire 2201 (see
[0054] The thermistor 2203 is provided at a substantially intermediate position of each portion obtained by dividing the entire circumference of the bonding portion 222 into twenty-six sections while being adjacent to the melt-cutting heat wire 2201 or the welding heat wire 2202, and has a function of detecting a heating temperature of the melt-cutting heat wire 2201 or the welding heat wire 2202 according to a change in resistance value. The melt-cutting heat wire 2201, the welding heat wire 2202, and the thermistor 2203 are individually controlled by a heating control unit 90 to be described later.
[0055] As illustrated in
[0056] The heating control unit 90 individually brings the plurality of melt-cutting heating units 2201A into an energized state via the enable wire 91 to individually heat the plurality of melt-cutting heat wires 2201. In addition, the heating control unit 90 individually brings the plurality of welding heating units 2202A into an energized state via the enable wire 91 to individually heat the plurality of welding heat wires 2202. The heating control unit 90 detects a current value at which the melt-cutting heat wire 2201 and the welding heat wire 2202 are energized from the plurality of melt-cutting heating units 2201A and the plurality of welding heating units 2202A via the AD converter 92. In addition, the heating control unit detects the heating temperature by detecting a change in resistance value of the thermistor 2203 from the plurality of heating temperature detection units 2203A via the AD converter 92. According to such a heating control unit 90, it is possible to individually control the heating temperature and the heating time of the plurality of melt-cutting heat wires 2201 and the plurality of welding heat wires 2202 to be proper and appropriate.
[0057] Specifically, referring to a flowchart in
[0058] Next, after the welding heating time t1 has elapsed, the heating control unit 90 stops heating the plurality of welding heat wires 2202 by turning off the energized state of the plurality of welding heating units 2202A, and cools the plurality of welding heat wires 2202 by setting a post-welding cooling time as t2 (S3). The post-welding cooling time t2 is, for example, about 3 seconds to 5 seconds. As a result, the lower-side film F1 and the upper-side film F2 are reliably welded to each other without being melt-cut. In this case, the welded portion of the wrap film is slightly shifted toward a portion close to the hand having strong tension. As a result, a melt-cut portion of the wrap film to be described later is located at an outer side of the welded portion with respect to the contour of the hand.
[0059] Next, after the post-welding cooling time t2 has elapsed, the heating control unit 90 brings the plurality of melt-cutting heating units 2201A into an energized state, thereby heating the plurality of melt-cutting heat wires 2201 by setting a melt-cutting heating time thereof as a t3 time (S4). The melt-cutting heating time t3 is, for example, about 3 seconds to 5 seconds. An appropriate heating temperature of the melt-cutting heat wire 2201 is, for example, about 130 C. to 200 C. In this case, the heating control unit 90 detects a heating temperature from the heating temperature detection unit 2203A including the thermistor 2203 adjacent to the melt-cutting heat wire 2201, and variably controls the melt-cutting heating time t3 in a range of 3 seconds to 5 seconds for each melt-cutting heat wire 2201 such that a melt-cutting heating temperature becomes an appropriate temperature. As a result, a portion where the lower-side film F1 and the upper-side film F2 are bonded along the contour of the hand including the outer side of the welded portion are melt-cut while being welded, the lower-side film F1 and the upper-side film F2 are adhered to entire front and rear surfaces of the hand without a gap, and an unnecessary portion of the wrap film on the outer side of the hand is cut off. In the present embodiment, time is divided into the welding heating time t1, the post-welding cooling time t2, and the melt-cutting heating time t3, but the present invention is not limited thereto, and the post-welding cooling time t2 may be omitted, or the welding heating time t1 and the post-welding cooling time t2 may be omitted and welding to melt-cutting may be performed within the melt-cutting heating time t3.
[0060]
[0061] Next, operation of the human body wrapping device 1 will be described.
[0062] First, in preparation for using the human body wrapping device 1, as illustrated in
[0063] Thereafter, in the human body wrapping device 1, both hands are placed in the frame-shaped portions 13A and 13B of the stationary unit 10. In this case, both hands are placed in the frame-shaped portions 13A and 13B in a state where the lower-side film F1 is sandwiched between the stationary unit 10 and both hands.
[0064] Thereafter, in the human body wrapping device 1, the pressure welding unit 20 is moved downward as indicated by an arrow C in
[0065] Next, in the human body wrapping device 1, the lower-side film F1 and the upper-side film F2 are welded and melt-cut by heating the welding heat wire 2202 and the melt-cutting heat wire 2201 along the portions where the contour portions 132 of the frame-shaped portions 13A and 13B and the bonding portions 222 of the frame-shaped portions 22A and 22B abut against each other. As a result, the lower-side film F1 and the upper-side film F2 in close contact with both hands are separated into hand shapes. Thereafter, the pressure welding unit 20 is moved upward, and both hands are detached from the stationary unit 10. As a result, the unnecessary portions of the lower-side film F1 and the upper-side film F2 are cut off from the hands in a state where the wrap films are sealed on both the front and back sides of both hands.
[0066] According to such a human body wrapping device 1 of the present embodiment, since the bonding portion along the contour of the hand is divided into a plurality of linear portions, and a plurality of welding heat wires 2202 and melt-cutting heat wires 2201 provided for each of the linear portions are individually controlled to have appropriate heating temperatures, even when the contour of the hand has a complicated shape, two films of the lower-side film F1 and the upper-side film F2 can be appropriately and sufficiently welded and melt-cut for each linear portion along the contour, and thus a sufficient welding margin can be continuously formed along the contour of the hand without partial disconnection.
[0067] In addition, it is possible to individually form a portion where the two films of the lower-side film F1 and the upper-side film F2 are melt-cut together while being welded by heating the melt-cutting heat wire 2201 and a portion where the two films of the lower-side film F1 and the upper-side film F2 are welded together by heating the welding heat wire 2202.
[0068] In addition, regarding a portion between fingers or a portion close to the wrist where the degree of welding tends to be weak because the tension of the two films of the lower-side film F1 and the upper-side film F2 is partially and relatively high, since the welding margin can be formed by heating the welding heat wire 2202, the welding can be reliably performed.
[0069] In addition, the welding can be reliably performed by cooling the bonding portion of the lower-side film F1 and the upper-side film F2 bonded at the portion between the fingers or the portion close to the wrist after heating the welding heat wire 2202, and thereafter, the unnecessary portions of the two films can be reliably melt-cut and cut off by heating the melt-cutting heat wire 2201.
[0070] The present invention is not limited to the above embodiment.
[0071] In the above embodiment, the lower-side film F1 and the upper-side film F2 of the wrap film are conveyed along palms of hand and backs of hand of both hands arranged horizontally, but for example, in a human body wrapping device 1 according to another embodiment, as illustrated in
[0072] A target portion of the human body with which the wrap film is brought into close contact is not limited to the hand, and may be, for example, a foot or an entire body.
REFERENCE SIGNS LIST
[0073] 1, 1 human body wrapping device [0074] 10 stationary unit [0075] 13A, 13B frame-shaped portion [0076] 20 pressure welding unit [0077] 22A, 22B frame-shaped portion [0078] 220 plane portion [0079] 2201 melt-cutting heat wire (heating unit) [0080] 2202 welding heat wire (heating unit) [0081] 2203 thermistor [0082] 221 hand shape portion [0083] 222 bonding portion [0084] 223 opening [0085] 60 film conveying mechanism [0086] 90 heating control unit (heating controller) [0087] F1 lower-side film (first film) [0088] F2 upper-side film (second film)