JP4876074B2 - Air mattress - Google Patents

Description

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

As a conventional air mattress, an integrated mattress often has a structure formed by welding each end of an air mattress front and back sheet (for example, see Patent Document 1 and Patent Document 2).
Japanese Patent Laid-Open No. 7-308242 (FIG. 2) Japanese Patent No. 3290159 (FIG. 5)

[Problems to be solved by the invention]
When such an air mattress is used for preventing bed slip, the body pressure dispersion performance is improved by controlling the internal pressure of the air mattress to be low. At this time, if the internal pressure was too low, there was a risk of bottoming out.

  Further, in the case of the end structure as shown in FIG. 2 of Patent Document 1 or FIG. 5 of Patent Document 2, the side surface portion swells round when filled with air. When taking a sitting position, there is a problem that the buttocks easily slide down.

  Accordingly, the present invention has been made to solve such problems, and it is an object of the present invention to provide an air mattress that prevents bottoming in an integrated mattress and realizes a sense of stability in an end-sitting position. is there.

[Means for solving problems]
In order to achieve the above-described object, the air mattress according to the present invention is composed of three sheets that are overlapped and bonded together in a sealed state, and are formed in the left-right direction by the first and second sheets. A first layer air cell composed of a cylindrical air cell, and a second layer air cell composed of a cylindrical air cell formed in the left-right direction by the second and third sheets, and the second sheet and the third sheet An air mattress formed by joining side members disposed between side end portions of each of two side surface sheets and interposing a side surface member arranged with the bonding portion side facing inward. The arrangement of the first layer air cell and the second layer air cell is shifted in the longitudinal direction, and the second layer air cell formed on the lower side is maintained at a substantially predetermined internal pressure, while the first layer formed on the upper side. A layer air cell is connected to the second layer air cell. Those characterized by comprising been set to a lower pressure than.

  Further, the first layer air cell is divided into two systems alternately arranged, and is alternately supplied and exhausted between the two systems, and the second layer air cell is maintained at a predetermined internal pressure. is there.

[The invention's effect]
The air mattress according to the present invention has a two-layer structure, and the arrangement of the first-layer air cells and the second-layer air cells is shifted in the longitudinal direction. Therefore, the first-layer air cells and the second-layer air cells are individually controlled to prevent floor slippage. While preventing bottoming.

  Specifically, the occurrence of bedsores can be prevented by holding the user's body at a low pressure in the upper first layer air cell. At the same time, the bottom second layer air cell can be prevented from bottoming by being held at a higher pressure than the first layer air cell.

  Furthermore, when the air is filled, the side surface portion has a square cross-sectional shape. Therefore, even when the end seating position is taken when leaving the air mattress, the collar portion is difficult to slide down.

  Further, if the first layer air cell is divided into two systems arranged alternately and air is alternately supplied to and exhausted from the first layer system A air cell and the first layer system B air cell, the body of the user is supported. The position is changed periodically to prevent further bedsores. Also at this time, the second layer air cell is controlled at a high pressure, and bottoming can be suppressed.

The perspective view of the air mattress which concerns on one Embodiment of this invention. FIG. The schematic perspective view which shows the adhesive relationship of a 1st-3rd sheet | seat. AA schematic sectional drawing of FIG. BB schematic sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st sheet 2 2nd sheet 3 3rd sheet 4 Peripheral part 5 1st adhesion part 6a 1st layer system A air cell 6b 2nd layer system B air cell 7 2nd adhesion part 8 2nd layer air cell 9 Side surface molded product 9a 9b Side sheet 10 Air mattress

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

  1 is a perspective view of an air mattress according to an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a schematic perspective view showing an adhesive relationship between first to third sheets, and FIG. -A schematic cross-sectional view, FIG. 5 is a schematic cross-sectional view along BB of FIG. 2, and the same reference numerals are used for the same or corresponding parts in each figure.

  In the air mattress 10 of the present embodiment, three rectangular sheets having flexibility, the first sheet 1, the second sheet 2, and the third sheet 3 are overlapped from above, and the peripheral portion 4 is bonded. .

  There is a first bonding portion 5 bonded between the first sheet 1 and the second sheet 2, whereby a first layer system A air cell 6 a and a first layer system B air cell 6 b are formed.

  In addition, there is a second bonding portion 7 bonded between the second sheet 2 and the third sheet 3, whereby the second layer air cell 8 is formed.

  Three sheets 1 to 3 are bonded to the peripheral portion 4. In FIG. 2, the first bonding portion 5 bonded between the first sheet 1 and the second sheet 2 is shown by a solid line, and the second bonding portion 7 bonded between the second sheet 2 and the third sheet 3 is a broken line. It is shown in The 1st, 2nd adhesion parts 5 and 7 are shifted and arranged in the longitudinal direction. Further, as in the above-described Patent Document 2, the bonding portions 5 and 7 are shifted back and forth by the inclined bent portions at the left and right air cell portions.

  Since the first and second adhesive portions 5 and 7 are displaced and bonded, the formed cylindrical air cells 6a, 6b, and 8 do not draw a perfect circle but draw an ellipse as shown in FIG. Yes. As a result, the control described below can be performed effectively, and the body contact surface when using the air mattress is an ellipse, so there is less unevenness compared to a normal cylindrical air mat and the sleeping comfort is improved. ing.

  Further, as shown in FIG. 5, the side surface portion 9a, 9b is formed by welding the one side end portion 9c of the two side surface sheets 9a, 9b by welder welding or the like. 9b, an insulator or the like (such as a polytetrafluoroethylene film) is sandwiched between the non-welding side end portions 9d, and the welding portion 9c side is located between the side ends of the second sheet 3 and the third sheet 3. It is formed by welder welding or the like in a state of being arranged so as to face the inner side, and is formed so that both side surfaces have a square cross-sectional shape when filled with air.

  As a result, when the air is filled, the side surface portion has a square cross-sectional shape, and it is difficult to slip off even if the end sitting position is taken out of the air mattress 10. In particular, in this embodiment, as shown in FIG. 5, the hatched portion subjected to the side treatment as described above is the second layer air cell 8 and is always controlled at a high pressure, so that the sense of stability of the bed leaving operation is further improved. can get.

  In use, the first-layer system A air cell 6a and the first-layer system B air cell 6b are controlled to have a low pressure at which floor slippage is unlikely to occur, and the second-layer air cell 8 is controlled to have a high pressure at which bottoming is difficult to occur.

  Thereby, a contact part with a user's air mattress 10 is hold | maintained by the low pressure with sufficient body pressure dispersion | distribution. Moreover, even if the low-pressure first-layer air cells 6a and 6b are crushed by turning over or the like, the second-layer air cell 8 is provided between the first-layer air cells 6a and 6b and can be supported by the high-pressure to suppress bottoming. .

  As another control method, if air is alternately supplied to and exhausted from the first layer system A air cell 6a and the first layer system B air cell 6b, the position of supporting the user's body is periodically changed, and further This helps prevent bedsores. Also at this time, the second layer air cell 8 is controlled at a high pressure, and bottoming can be suppressed.

Claims (2)

A first layer air cell composed of a cylindrical air cell formed of three sheets, which are overlapped and bonded at the periphery and sealed to form a left and right direction by the first and second sheets, and the second and third sheets And a second layer air cell composed of a cylindrical air cell formed in the left-right direction, and between the side edges of the second sheet and the third sheet, each one side edge side of the two side sheets is provided. An air mattress that is joined by interposing a side member that is joined and arranged with the joint portion side facing inward,
  The arrangement of the first layer air cell and the second layer air cell is shifted in the longitudinal direction,
  While the second layer air cell formed on the lower side is maintained at a substantially predetermined internal pressure,
  The air mattress characterized in that the first layer air cell formed on the upper side is set at a lower pressure than the second layer air cell. The first layer air cell is divided into two systems arranged alternately and is alternately supplied and exhausted between the two systems, and the second layer air cell is maintained at a substantially predetermined internal pressure. The air mattress according to 1.

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