JP3129460U - Sitting position cushion - Google Patents

Abstract

[PROBLEMS] To prevent lumbar distortion and abdominal pressure at the time of sitting and prevent slipping off from a chair, as well as being able to cope with various sitting postures by taking a step further. Also, it provides a sitting cushion that is easy to store and comfortable and that is very economical.
SOLUTION: A cushion body 1 is formed from a seat cushion 11 that can be installed on a seat and a floor of a chair, and a lumbar cushion 12 supported on a backrest surface of the chair, while the seat cushion 11 and the lumbar cushion are formed. 12 are detachably joined to each other by a surface fastener 2 comprising a first surface material disposed at the rear of the upper surface of the seat cushion 11 and a second surface material 22 disposed at the lower part of the lumbar cushion 12. The inclination angle of the lumbar cushion 12 can be freely adjusted by adjusting the fixing position of the second face dressing material with respect to the first face dressing material 21.
[Selection] Figure 1

Description

  The present invention is an improvement of the cushion for holding the sitting position. Specifically, it does not cause distortion of the lumbar spine or pressure on the abdomen when seated, prevents sliding off from the chair, and also has good storage and sitting comfort. The present invention relates to a cushion for holding a sitting position having excellent properties.

  As is well known, sitting on a hard seat or floor as it is, the hips and lower thighs are compressed and hurt, so it is common to lay a flexible seat cushion. Since pressure ulcers are likely to occur when the part sinks and the load concentrates on the buttocks, seat cushions are often used to relieve the load by dispersing body pressure.

  However, if only the seat cushion is laid, there will be a gap between the waist and the seating surface at the boundary between the seat and the backrest, and the curved shape of the lumbar spine will be distorted, thereby compressing the nerves and muscles in the lumbar region. The patient could develop low back pain, and the abdomen on the other side was compressed, making it difficult to breathe.

  Furthermore, if there is a gap between the lower back and the seating surface, the lower back cannot be supported, and the center of gravity of the seated person moves to the front of the seating surface, causing a forward load on the lower leg and slipping off the chair. I often fell.

  Therefore, conventionally, in order to solve these problems, a seating cushion in which a lumbar support portion is integrally provided at the rear portion of the seat cushion so as to fill a gap between the waist and the seating surface has been developed and publicly known (for example, patents). Reference 1).

  However, since the conventional seat cushion has a constant and invariant shape of the lumbar support, when the buttock is seated forward of the base of the lumbar support, the lumbar support and the lumbar support are still There was a gap between them, and the waist could not be supported.

  Further, the shape of the seat cushion in which the lumbar support portion is integrally formed cannot be stacked in a compact manner, so that storage is very inconvenient.

  On the other hand, conventionally, as described in <Patent Document 2>, a lumbar support device that can adjust the angle of the lumbar support cushion by a support mechanism at the rear is also known.

  However, when the above-described conventional lumbar support device is used on a seat cushion, it is difficult to form a smooth seating surface because each device is an independent device, resulting in an uncomfortable feeling at the waist. I had lost my comfort.

Furthermore, in the lumbar support device of the above-mentioned document 2, when a load is applied, the rigid member constituting the rear support mechanism and the seat cushion are rubbed and the seat cushion may be damaged, which is very uneconomical. there were.
JP 2006-136552 A (page 2-9, FIG. 1-3) Japanese Patent Laid-Open No. 10-80339 (page 2-4, FIG. 1-7)

  The present invention has been made in view of the above-mentioned problems, and the object of the present invention is, of course, that the lumbar spine is not distorted and the abdomen is not compressed at the time of sitting, and it is possible to prevent slipping off the chair. Further, it is an object of the present invention to provide a sitting position holding cushion that can be adapted to various seating postures and that can be accommodated in various ways and at the same time has good storage properties and comfortable seating, and is very economical.

  Means adopted by the present inventor for solving the above problems will be described with reference to the accompanying drawings.

  That is, the present invention forms a cushion body 1 from a seat cushion 11 that can be installed on a seat, a floor of a chair, and a lumbar cushion 12 supported on the backrest surface of the chair, while the seat cushion 11 The lumbar cushion 12 can be attached to and detached from each other by a surface-mounted fastener 2 comprising a first dressing material disposed at the rear of the upper surface of the seat cushion 11 and a second dressing material 22 disposed at the lower portion of the lumbar cushion 12. It is characterized in that the inclination angle of the lumbar cushion 12 can be freely adjusted by adjusting the fastening position of the second face dressing material 22 with respect to the first face dressing material 21.

  Further, in the present invention, in order to solve the above-described problem, a technique of integrally providing a back cushion 14 that can hold the back of the human body on the lumbar cushion 12 of the cushion body 1 in addition to the above means as necessary. Manual means can be employed.

  In addition, in the present invention, in order to solve the above-described problems, the first face dressing material 21 of the face-fastening fastener 2 is made of a pile sheet or hook sheet having a very high flexibility in addition to the above-described means as necessary. Technical means can be adopted.

  Further, in the present invention, in order to solve the above-described problems, technical means of using a low-resilience urethane material for the seating surface of the cushion body 1 can be employed in addition to the above-described means as necessary.

  In addition, in the present invention, in order to solve the above-described problems, in addition to the above-described means, the seat cushion 11 placed on the seat or the floor of the chair and the backrest surface of the chair are supported as necessary. The cushion body 1 is formed from the lumbar cushion 12 and the seat cushion 11 and the lumbar cushion 12 are provided with a plurality of slit insertion holes 31, 31. Can be inserted and removed by a hook mechanism 3 including locking hooks 32 and 32 disposed below the lumbar cushion 12 and can be inserted into the insertion holes 31 and 31. By adjusting the fastening positions of the fastening hooks 32 and 32 back and forth, it is possible to employ technical means that allows the inclination angle of the lumbar cushion 12 to be freely adjusted.

  In the present invention, the rear portion of the seat cushion and the lower portion of the lumbar cushion are configured to be detachable by a surface fastener so that the second surface dressing material of the lumbar cushion in the first surface material disposed on the seat cushion is stopped. By adjusting the seating position, we completed a seat-holding cushion with excellent functionality that allows the angle of the lumbar cushion to be adjusted appropriately according to the seating posture.

  As a result, even if the position of the buttocks moves back and forth on the seat cushion, the gap between the waist and the seating surface can be filled by adjusting the angle of the lumbar cushion accordingly, so lumbar distortion and abdominal compression Does not occur, and sliding off of the chair can be prevented.

  In addition, because the seat cushion and lumbar cushion are detachable, they can be stored compactly if they are separated and stacked, especially when storing a large number of sitting position cushions in nursing homes, etc. Convenient.

  In addition, since the seat cushion and the lumbar cushion have a uniform shape, it is easy to form a smooth seating surface, so that the sitting comfort is also good.

  In addition, since the pile sheet excellent in the softness | flexibility is arrange | positioned as a 1st face dressing material in the seat cushion, a seating comfort is not impaired by a face-fastening fastener.

  Further, since the face fastener is selected as the connecting means between the seat cushion and the lumbar cushion, the seat cushion is not damaged even if a load is applied to the lumbar cushion, which is very economical.

  Therefore, according to the present invention, it is possible to provide a sitting position holding cushion that is not only excellent in functionality of supporting the lumbar region but also very practical, so that it can be said that the practical utility value of the present invention is very high.

“Example 1”
The first embodiment of the present invention will be described in more detail with reference to FIGS. First, in the figure, what is indicated by reference numeral 1 is a cushion body, and what is indicated by reference numeral 2 is a surface fastener.

  Next, the configuration of the present embodiment will be described below. First, in this embodiment, a cushion body 1 including a seat cushion 11 installed on a seat portion of a chair and a lumbar cushion 12 supported on a backrest surface was made of urethane foam (see FIG. 1).

  Next, the first face dressing material 21 of the surface fastener 2 is disposed at the rear of the upper surface of the seat cushion 11 of the cushion body 1, and the second surface dressing material 22 of the surface fastener 2 is disposed below the lumbar cushion 12. Thus, the seat cushion 11 and the lumbar cushion 12 can be detachably joined.

  In the present embodiment, the pile sheet as the first face dressing material 21 is sewn from above the cover material C of the seat cushion 11 of the cushion body 1 to join them together, and similarly the cover material C of the lumbar support 12 Was prepared by sewing a hook sheet as the second dressing material 22.

  With the above-described configuration, even if the position of the collar portion moves back and forth on the seat cushion 11 as shown in FIG. 3, the fastening position of the second face dressing material 22 in the first face dressing material 21 is determined. By adjusting, the angle of the lumbar cushion 12 can be adjusted appropriately, so that the gap between the lumbar region and the seating surface can be filled, so there is no distortion of the lumbar spine or compression of the abdomen, and slipping off from the chair Can be prevented.

  In addition, since the seat cushion 11 and the lumbar cushion 12 are detachable, the cushion body 1 can be stored compactly if they are separated and stacked, and a large number of sitting position holding cushions are stored particularly in nursing homes. It is very convenient in some cases.

  In addition, since the seat body 11 and the lumbar cushion 12 have a uniform shape, it is easy to form a smooth seating surface on the cushion body 1, so that the seating comfort is also good.

  The seat cushion 11 is provided with a highly flexible pile sheet as the first face dressing material 21, so that the seating comfort 2 does not impair the sitting comfort.

  Furthermore, by selecting the face fastener 2 as the connecting means between the seat cushion 11 and the lumbar cushion 12 in the cushion body 1, the seat cushion 11 will not be damaged even if a load is applied to the lumbar cushion 12. Economical.

  In this embodiment, the cushion body 1 is produced as a sitting position holding cushion for use in a wheelchair, and a non-slip portion 13 is provided on the bottom surface of the seat cushion 11 and the rear surface of the lumbar cushion 12 to prevent the seat cushion from being displaced. is doing.

  Further, the lumbar cushion 12 of the cushion body 1 has a curved shape that can be held so as to wrap the pelvis, so that the position of the waist can be maintained so that the trunk of the seated person does not shift from side to side. .

Moreover, the cushion body 1 is formed by forming a low-repulsion urethane layer U ₂ using a low-repulsion urethane material on the seating surface side of the high-repulsion urethane layer U ₁ excellent in form stability, thereby distributing body pressure. Therefore, even if sitting for a long time, there is no pain in the lower back and buttocks (see FIG. 3).

“Example 2”
A second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the cushion body 1 is manufactured as a sitting position holding cushion used on the floor, and the lumbar cushion 12 is integrally provided with a back cushion 14 that can hold the back of the human body. There is no pain due to the back being pressed by the drooping surface (see FIG. 4).

  In this embodiment, a leather material excellent in heat retention is used as the cover material C of the cushion body 1, while a mesh fabric is applied to the rear surface portion of the seat cushion 11 and the first surface dressing 21 of the surface fastener 2. By using it and improving the air permeability, the swelling of the buttocks that causes pressure ulcers can be eliminated (see FIG. 5).

“Example 3”
A third embodiment of the present invention will be described with reference to FIGS. In this embodiment, a plurality of slit-like insertion holes 31, 31 are arranged at the rear part of the upper surface of the seat cushion 11, and further, a locking hook that can be inserted into the insertion hole 31 at the lower part of the lumbar cushion 12 32 and 32 are provided so that the seat cushion 11 and the lumbar cushion 12 of the cushion body 1 are detachable (see FIG. 6).

  Thereby, the inclination angle of the lumbar cushion 12 in the cushion body 1 can be appropriately changed by moving the fastening position of the locking piece 32 in the insertion holes 31, 31... (See FIG. 7). .

  In addition, since the insertion hole 31 of the hook mechanism 3 is formed in the cover place C of the seat cushion 11 in the shape of a slit, the seating comfort is not affected.

  And the flexible member was used for the latching hooks 32 * 32 of the hook mechanism 3 so that it could respond to the inclination angle of the lumbar cushion 12 which changes with the positions of the insertion holes 31 * 31.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the description of the “Practical model registration claims”. The cushion body 1 is not limited to a form used for a seat portion of a wheelchair, but may be a form suitable for use in an office chair or a driver seat of a long-distance truck.

  In addition, as the first face dressing material 21 of the face fastening fastener 2, a hook sheet or a mixed sheet of pile and hook may be used instead of a pile sheet as long as it has flexibility that does not impair sitting comfort. As for the method of fixing the wearing fastener 2 to the cushion body 1, it is also possible to provide an adhesive on the back side of the seating fastener 2 and attach it to the seat cushion 11 or the lumbar cushion 12, both of which are within the technical scope of the present invention. Belonging to.

  In recent years, at the request of a welfare society, research and development of a sitting position holding device that can lead a comfortable life in a state where a disabled person, an elderly person, etc. who are disabled are seated. In addition, there are many desk workers and truck drivers who have to sit in a chair for work for a long time even if they are healthy people, and can maintain a proper sitting posture for a long time. There is a great demand for a sitting position holding device. However, in the market, it is still impossible to find a sitting position holding device having a satisfactory back pain prevention function and practicality.

  Under such circumstances, the sitting position holding cushion of the present invention is a sitting position holding apparatus that can accommodate various users with different sitting postures, and is practically used in consideration of usage such as storage and economy. Because it is a social welfare tool, there is a great demand in the market, and it can be said that the industrial utility value of the present invention is very high.

It is a whole perspective view showing the sitting position holding cushion in Example 1 of the present invention. It is a state explanatory drawing showing the use condition of the sitting position holding cushion in Example 1 of the present invention. It is explanatory sectional drawing showing the internal structure of the seat cushion in Example 1 of this invention. It is a state explanatory drawing showing the use condition of the sitting position holding cushion in Example 2 of the present invention. It is explanatory stepped garden diagrams showing the internal structure of the seat cushion in Example 2 of this invention. It is a description perspective view showing the sitting position holding cushion in Example 3 of the present invention. It is explanatory sectional drawing showing the use condition of the sitting position holding cushion in Example 3 of this invention.

Explanation of symbols

1 Cushion body
11 Seat cushion
12 Lumber cushion
13 Non-slip part
14 Back cushion 2 Face fastener
21 First face dressing
22 Second side dressing material 3 Hook mechanism
31 insertion hole
32 Locking hook U ₁ High resilience urethane layer U ₂ Low resilience urethane layer C Cover material

Claims (5)

  A cushion body 1 is formed from a seat cushion 11 that can be installed on the floor of a chair, and a lumbar cushion 12 supported on the backrest surface of the chair, while the seat cushion 11 and the lumbar cushion 12 are The seat cushion 11 can be detachably joined to each other by a face-fit fastener 2 comprising a first face-dressing material disposed at the rear of the upper surface of the seat cushion 11 and a second surface-dressing material 22 disposed at the lower portion of the lumbar cushion 12. The seat holding cushion is characterized in that the inclination angle of the lumbar cushion 12 can be freely adjusted by adjusting the fastening position of the second face dressing material 22 with respect to the first face dressing material 21.   The sitting cushion as claimed in claim 1, wherein a back cushion (14) capable of holding the back part of the human body is integrally provided on the lumbar cushion (12) of the cushion body (1).   The seat-holding cushion according to claim 1 or 2, wherein the first face dressing material 21 of the face-fastening fastener 2 is made of a pile sheet or a hook sheet having a very high flexibility.   The seat-holding cushion according to any one of claims 1 to 3, wherein a low-resilience urethane material is used for a seating surface of the cushion body 1.   A cushion body 1 is formed from a seat cushion 11 placed on a seat or floor of a chair and a lumbar cushion 12 supported on the backrest surface of the chair, while the seat cushion 11 and the lumbar cushion 12 Are a plurality of slit-like insertion holes 31, 31... Arranged at the rear part of the upper surface of the seat cushion 11, and a member that can be inserted into the slit-like insertion hole 31 and is arranged below the lumbar cushion 12. The lumbar cushion 12 can be attached and detached by a hook mechanism 3 including stop hooks 32 and 32, and the fixing positions of the hooks 32 and 32 in the insertion holes 31 and 31 are adjusted back and forth. A sitting position retaining cushion characterized in that an inclination angle can be freely adjusted.

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