JP2007082861A - Air mattress - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air mattress which is comfortable and safety by preventing air bags from contacting with the body directly, and which is provided with the air bags where time for swelling or contracting is shortened while securing a size for keeping the body safety. <P>SOLUTION: The air mattress 1 is provided with an air bag 4 for the back corresponding to the back of the body and an air bag 5 for the lower back corresponding to the lower back of the body between upper and lower mattresses 2 and 3. Moreover, the air mattress 1 is provided with an air bag having an internal bag having an open bottom side at its center. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air mattress having comfort and safety.

  Conventionally, an airbag for changing the height of an air mattress or the like is often used by being installed on the upper surface side of the mattress (see, for example, Patent Document 1 and Patent Document 2).

Conventionally, many airbags intended to list a part of the body have a wide width and a large internal volume (see, for example, Patent Document 3).
JP-A-10-327986 (FIGS. 1 and 2) Japanese Patent Laid-Open No. 10-14991 (FIG. 1) Utility Model Registration No. 3083553 (FIGS. 1 to 5)

  However, when the airbag is placed on the top surface of the mattress, the position adjustment is easy, but when not in use, the user sleeps on the contracted airbag and the sleeping comfort is lowered. In addition, there is concern about the worsening of symptoms in people with pressure ulcers. Furthermore, if the body is held by the airbag disposed on the upper surface of the mattress, a gap or the like may be generated between the held portion and the portion that is not, which may cause partial compression.

  In addition, airbags intended to lift up a part of the body need to be widened to increase safety in order to keep the body safe. There is a problem that it takes too much time.

  Accordingly, the present invention has been made to solve such problems, and it is intended to provide an air mattress that is comfortable and safe so that the airbag does not directly touch the body. It is the purpose.

  Moreover, it aims at providing the air mattress provided with the airbag which can shorten the time of expansion / contraction, ensuring the dimension for hold | maintaining a body safely.

  To achieve the above object, an air mattress according to the present invention includes a back airbag corresponding to the back of the body and a waist airbag corresponding to the waist of the body between the upper and lower mattresses. It is characterized by this.

  In addition, an air bag having an inner bag whose bottom side is opened at the center is provided.

  In the air mattress according to the present invention, a back airbag and a waist airbag are provided between the upper and lower mattresses so that the airbag does not directly touch the body, thereby improving comfort and safety. Can be planned.

  In addition, by providing an airbag that has an inner bag with the bottom side open at the center, the amount of air filled in the inner bag can be reduced, so dimensions for holding the body safely are secured. However, the expansion / contraction time can be shortened. In addition, since the body is supported by air at the outer peripheral portion, the amount of deformation is small when a load is applied, and the periphery does not become lower than the central portion, so that the stability of the body can also be increased.

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

  1 is a perspective view of an upper air mattress and an AA simplified sectional view thereof in an air mattress according to an embodiment of the present invention. FIG. 2 is a perspective view of a lower air mattress and a simplified sectional view taken along BB of the same. 3 is a longitudinal cross-sectional view of the air mattress in the longitudinal direction, FIG. 4 is a perspective view of the airbag for the back, and a simplified cross-sectional view taken along C-C, FIG. 5 is a perspective view of the airbag for the waist, and FIG. FIG. 7 and FIG. 7 are schematic diagrams showing the operation state of the waist airbag. In each figure, the same reference numerals are used for the same or corresponding parts.

  As shown in FIG. 3, the air mattress 1 of the present embodiment includes a back airbag 4 corresponding to the back of the body and a waist airbag 5 corresponding to the waist of the body between the upper and lower air mattresses 2 and 3. The pad 6 is placed on the upper air mattress 2 and the whole is covered with the cover 7.

  The upper air mattress 2 has a shape in which air cells extending in the width direction are formed in a zigzag shape as shown in FIG. 1, and a welder welded by high frequency between the front and back sheets 2a and 2b made of a thermoplastic film such as urethane. The size is such that when filled with air, the thickness is 80 mm, the width is 900 mm, and the length is 1950 mm. The side surface is formed by welding the side surface 8a, 8b (see FIG. 1 (b)) of the two side sheets 8a, 8b (see FIG. 1 (b)) using the same material as the front and back sheets 2b by welding welding or the like. Product 8 is prepared, and an insulator or the like (such as a polytetrafluoroethylene film) is sandwiched between the non-welded side ends 8d of the side sheets 8a and 8b, and the side edges of the front and back sheets 2a and 2b It is formed by welder welding or the like in such a state that the welded portion 8c side faces inward between the portions, and both side portions are formed to have a square cross-sectional shape when filled with air. A thickness of 80 mm is secured by setting the height of the side surface to 70 mm. When the thickness is changed, it can be dealt with by changing the dimension of the side molded product 8.

  On the other hand, the lower air mattress 3 has a shape in which an air cell extending in the width direction is formed in a substantially M shape as shown in FIG. 2, and similarly to the above, front and back sheets 3a made of a thermoplastic film such as urethane, The space between 3b is formed by welder welding or the like using high frequency, and the size is 90 mm, 900 mm, and 1950 mm long when filled with air. A concave portion 3c having a width of 400 mm and a depth of 200 mm is provided on the foot side, and the air pump 9 (see FIG. 3) can be accommodated in this portion. The side surface has a structure using a side molded product 10 similar to the upper air mattress 2 and is formed so that both side surfaces have a square cross-sectional shape when filled with air, and the side molded product 10 has a thickness of 90 mm. It is molded to become.

  Conventionally, for example, as shown in FIG. 2 of Japanese Patent Application Laid-Open No. 7-308242, there are many structures formed by welding each end of the front and back sheets of an air mattress, and such an end. In the case of the partial structure, when the air is filled, the side surface portion swells in a round shape. Therefore, when the end seating position is taken when leaving the air mattress, there is a problem that the collar portion easily slides down. With respect to this problem, in the present embodiment, by configuring as described above, when the air is filled, the side surface portion has a square cross-sectional shape. It is possible to alleviate the adverse effects of the heel, and even if the end seating position is taken when leaving the air mattress 1, the heel portion is difficult to slip off.

  Further, the back airbag 4 has an inclined surface shape in which the rear side becomes higher as shown in FIG. 4 when the air is filled. Similarly to the above, the front and back sheets 4a and 4b made of a thermoplastic film such as urethane have a high frequency between them. And is formed so as to have a rear side thickness of 120 mm, a width of 880 mm, and a length of 450 mm when filled with air.

  The conventional cross-sectional structure of such an airbag is formed by welding a thing like a stretched film (for example, like the middle collar 3 shown in the above-mentioned JP-A-7-308242). On the other hand, the back airbag 4 shown in FIG. 4 of the present embodiment has a bottom side in the back airbag 4 (space A) as shown in the simplified sectional view of FIG. The structure is such that a space B is formed by the opened internal bag 4c. That is, an inner bag 4c having a thickness of 70 mm, a width of 700 mm, and a length of 220 mm is welded and fixed to the central portion of the back airbag 4 and the bottom side is open. Further, the inner bag 4c plays the same role as a conventional stretch film. Note that the second welded portion 4d from the left in FIG. 4B shows the welded portions 4d on both sides of the front portion in FIG. 4A, and the second welded portion 4e from the right is shown in FIG. Although not visible in (a), it is provided in order to prevent the rear side from bulging round.

  By configuring as described above, the air filled in the back airbag 4 can be secured to the entire space as in the prior art by filling only the space A. The air filling amount can be reduced by about half, and the expansion / contraction time can be shortened. Moreover, since it is supported by air at the outer peripheral portion, the amount of deformation is small when a load is applied, and the surroundings are not lowered from the central portion, so that the stability of the body can be enhanced.

  On the other hand, as shown in FIG. 5, the lumbar airbag 5 has a short length but is a front and back sheet made of a thermoplastic film such as urethane so as to have the same shape as the upper air mattress 2 shown in FIG. The space between 5a and 5b is formed by welder welding or the like by high frequency, and is formed to have a thickness of 80 mm, a width of 880 mm, and a length of 300 mm when filled with air.

  As shown in FIG. 3, the back airbag 4 described above is disposed on the head side of the air mattress 1, and the lumbar airbag 5 is disposed on the center side. Can be adjusted.

  The foot of the lower air mattress 3 is connected to the air mattresses 2 and 3 and the airbags 4 and 5 by an air tube (not shown) to control the filling of the air into the thickness 90 mm, width 350 mm, and length. A 160 mm air pump 9 is installed. The air pump 9 is operated by a remote controller (not shown). The air pump 9 can adjust the air mattresses 2 and 3 and the air bags 4 and 5 to appropriate pressures.

  With the above configuration, in the case of a user with a circular back, the back airbag 4 operates while pushing up the upper air mattress 2 as shown in FIG. Is held in a comfortable state along the upper body with a round back, and sleeping in the supine position can be made safe and comfortable.

  Further, as shown in FIG. 7, when the lumbar airbag 5 is operated from the lumbar airbag unused state shown in FIG. 7A, the upper air mattress 2 is pushed up and used as shown in FIG. The waist part of the person U is held in a gentle shape, and since the airbag 5 is not directly touched, it becomes possible to sleep in the same state as the standing posture while being in a comfortable state, and is effective in preventing back pain and the like. be able to.

The perspective view of the upper air mattress in the air mattress which concerns on one Embodiment of this invention, and its AA simplified sectional drawing. The perspective view of a lower air mattress, and its BB simple sectional view. The longitudinal direction longitudinal cross-sectional view of the said air mattress. The perspective view of the airbag for back parts, and its CC simplified sectional drawing. The perspective view of the airbag for waist | lumbar regions. The airbag operation state schematic for the back. Lumbar airbag operation state schematic diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air mattress 2 Upper air mattress 2a Front seat 2b Back seat 3 Lower air mattress 3a Front seat 3b Back seat 4 Back airbag 4a Front seat 4b Back seat 4c Internal bag 5 Lumbar airbag 5a Front seat 5b Back seat 8, 10 Side Molded Products 8a, 8b, 10a, 10b Side Sheet 9 Air Pump

Claims (2)

  An air mattress comprising a back airbag corresponding to the back of the body and a waist airbag corresponding to the waist of the body between the upper and lower mattresses. The air mattress according to claim 1, further comprising an airbag having an inner bag having a bottom side opened at a central portion.

Images