JP2007125106A - Chair and pad for chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair and a pad for the chair allowing a user to be seated on the chair for a long time without feeling tired and while keeping a good posture. <P>SOLUTION: The pad 1 for the chair has a first swelling part 4 formed on the part where the buttocks of the user is placed, and a second swelling part 5 is formed on the part near the back of the knees. An integrally connected backrest pad 3 is composed of a horizontal part 6 for supporting the rear side of the pelvis and a vertical part 7 for supporting the back of the spinal column. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The invention according to the claims relates to a chair (including various seats and seat chairs) and a chair pad (cushion) that is less likely to get tired even when sitting for a long time.

Generally, the seat surface and backrest of a chair are formed as a flat surface or a curved surface along the body. On the other hand, for example, like a chair shown in Patent Document 1, there is a chair that prevents a butt from sliding forward by mounting a narrow cushion in front of a seat cushion.
JP 2003-144268 A

  As described above, the sitting surface and backrest formed with a flat surface or a curved surface along the body make extensive contact with the back and back of the thighs of the person who sits. End up.

Also in the chair described in the above-mentioned document 1, since the seating surface is formed flat in parts other than the slip prevention cushion, the rear surface of the thigh is pressed against the seating surface. Since the backrest is also curved so as to wrap the back from both sides, the movement of the back and shoulder muscles is hindered.
If the muscles are compressed and restrained and the movement becomes poor, the blood circulation in that part also deteriorates.

  In view of such points, an object of the present invention is to provide a chair and a chair pad that are less likely to get tired even when sitting for a long time and can maintain a good posture.

The chair described in claim 1 includes a butt portion (coccyx portion; the same applies hereinafter) and a portion close to the back of the knee (a portion of a tendon (biceps tendon) near the lower end of the rear surface of the thigh; the same applies hereinafter). The seating surface is formed so as not to press the rear surface of the thigh between them.
With such a chair, the muscles on the back of the thigh are not pressed and restrained, so that even when sitting for a long time, blood circulation in the thigh is not hindered and fatigue is less likely. In addition, since the portion close to the back of the knee is supported, there is also an effect that the butt is difficult to slide forward and it is easy to maintain a good posture.

The chair described in claim 2 is characterized in that a backrest is formed so as to support the rear part of the spine while not compressing the left and right side parts (scapula and surrounding muscles).
In such a chair, the back and shoulders are not restrained when leaning, so that the blood circulation around the chair is not obstructed and it is difficult to get tired even if sitting for a long time.

The chair according to claim 3, in the seat surface, forming a first raised portion on a portion on which a buttocks (tailbone) is placed, and forming a second raised portion on a portion on which a portion close to the back of the knee is placed, In the backrest, a third raised portion is formed at a portion where the back of the spine contacts.
Rather than providing a raised part, a recess (or notch) is formed on the seat surface between the part on which the butt is placed and the part on which the back of the knee is placed, and the back of the spine You may form a dent (or notch) in the both sides of the part to contact.
In such a chair, the rear surface of the thigh is located in a state of floating between the first raised portion and the second raised portion (or on a dent or the like) when sitting down. Pressure can be prevented. Also, when leaning against the backrest, the shoulder blades on both sides of the spine and the surrounding muscles are not compressed by the backrest. Therefore, the blood circulation of the thigh and back is not obstructed, and it is difficult to get tired even if sitting for a long time.

The pad for a chair described in claim 4 is a pad (laying pad) that is used by being laid on the seat surface of the chair, and supports a portion of the buttocks and a portion close to the back of the knee, and a large space between them. It is formed so as not to compress the rear surface of the thigh.
For example, when the chair pad is used on a vehicle seat, the chair pad acts to prevent compression of the rear surface of the thigh of the person sitting. Moreover, since it can be carried, it can be used on the seating surface of any other chair, and it also provides a preferable effect.

  In the chair pad of the invention, the first raised portion is formed on the portion where the butt is placed, and the second portion which is lower than the first raised portion on the portion where the portion close to the back of the knee is placed. It is preferable to form a raised portion. Since the first raised portion on which the butt is placed is formed higher than the second raised portion, the back muscles naturally extend and can maintain a good posture. Even if the pad is deformed when sitting, the butt side to which a larger load is applied can be supported at substantially the same height as the knee side, and thus an effect of preventing the pressure on the rear surface of the thigh is easily brought about.

The chair pad according to claim 6 is a pad (back pad) that is used by leaning against the back of the chair, and supports the back part of the spine (contacts the part), while the parts on both sides thereof. It is formed so that it is not pressed (it is hard to contact the part).
Such a chair pad has an effect of not constraining the muscles of the back of a person leaning against the backrest by leaning against the backrest formed of a flat surface or a curved surface along the body. To do. Moreover, since it can carry, it can be used for arbitrary chairs and a user's fatigue can be prevented by the same effect | action.

  As described in claim 7, the chair pad is integrally formed with a horizontal portion that contacts the rear side of the pelvis and a vertical portion that extends upward from the center of the horizontal portion and contacts the back portion of the spine. In addition, the vertical portion is preferably formed including a curved surface along the back. With such a chair pad, the horizontal part stabilizes the waist, and the vertical part acts so that the spine extends naturally and corrects the posture.

  As described in claim 8, the chair pad is preferably constituted by a bag capable of enclosing air. This is because it is light and easy to handle, and the hardness can be adjusted by the amount of air enclosed. Also, when carrying or storing, it can be made compact by removing the air, which is convenient for travel and the like.

The chair pad according to claim 9 uses any one of the above pads, and a pad (laying pad) that is used by laying on the seat surface of the chair and a pad (back pad) that is used by leaning against the backrest. And are connected to each other.
If such a pad for a chair is used with a laying pad and a back pad placed on any chair, it can prevent the muscles of the back of the thigh or the back muscles or both muscles from being compressed. . In addition to being light, the mating pad and back pad are connected together so that when the user sits on a chair or sits down, the position of the pad can be adjusted with one hand for easy handling.

The pad for a chair according to claim 10 is a bag in which air can be enclosed in a pad (laying pad) used on a seat surface of a chair and a pad (backing pad) used against a backrest. It is comprised by these and each is connected so that isolation | separation as another bag is possible.
In this case, since the lay pad and the back pad are separate bags, the enclosed air does not bias to either one due to the weight of the seated person. It is also possible to adjust the hardness of the pad by enclosing an appropriate amount of air in each. The floor pad and the back pad may be separated and used alone. In addition, the air can be folded and folded for convenient storage and transportation.

  In the chair according to the claims, the person who sits on the chair does not press the muscles (the back muscles of the thigh or the back muscles or both of the muscles) and does not obstruct blood circulation.

  The chair pad according to the claims can be used on a normal arbitrary chair, and at that time, the same effect as the chair according to the claims is brought about. If it is configured with a bag that can enclose air, it will be possible to change the hardness, making it convenient for storage and carrying.

One embodiment of a chair pad according to the invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing a state in which a chair pad 1 is placed on a chair 11 having a seat surface 12 and a backrest 13 formed in a flat shape. 2 is a plan view of the chair pad 1, FIG. 3 is a front view of the chair pad 1 in a state where the pad 2 and the back pad 3 are separated, and FIG. It is a side view which shows the state which sat down.

  As shown in FIG. 1, the chair pad 1 includes a floor pad 2 placed on the seat surface 12 of the chair 11 and a back pad 3 that leans against the backrest 13. The floor pad 2 and the back pad 3 are both formed of a vinyl material bag capable of enclosing air, and are detachably connected by a connecting tool (not shown) such as a hook-and-loop fastener. Air is sealed and discharged from an air sealing port (not shown) provided in each bag.

  The surface of each bag is processed into a pile. The pile is uneven, so it does n’t stuffy when you sit down, and it ’s slippery so you can use it comfortably. The bag may be covered with a cover made of a material that absorbs sweat.

  As shown in FIGS. 2 and 3, the laying pad 2 is a rectangle having a width of 40 cm and a depth of 37 cm, and a first raised portion 4 is integrally provided on the butt side and a second raised portion 5 is integrally provided on the knee side. The first raised portion 4 has a depth of 10 cm and a height (thickness) of 8.5 cm, and the second raised portion 5 has a depth of 6 cm and a height (thickness) of 5 cm. The thickness of the sandwiched portion is 3 cm. In order to prevent the air from being biased, the upper surface and the lower surface are fastened with buttons 8 at three positions in a portion sandwiched between the raised portions 4 and 5.

  The back pad 3 is integrally formed with a horizontal portion 6 that supports the posterior side of the pelvis and a vertical portion 7 (third raised portion) that supports the posterior side of the spine so as to form an inverted T shape. The horizontal portion 6 has a width of 40 cm, a depth (thickness) of 5 cm, and a height of 23.5 cm, and the front and back surfaces are fastened with buttons 8 at three locations to prevent the air from being biased. The vertical portion 7 has a width of 8 cm, a depth (thickness) of 5 cm, and a height (projection height from the upper surface of the horizontal portion 6) of 25 cm, and the depth (thickness) is gradually reduced toward the tip to form a curve of the spine. I try to follow.

  As shown in FIG. 4, the chair pad 1 supports the buttocks (coccyx and sacrum) with the first raised portion 4 of the pad 2, and the second raised portion 5 close to the back of the knee (the back of the thigh) Support the tendon part near the lower edge of the The rear surface of the thigh floats between them and is not compressed, so that blood circulation is difficult to be hindered. Since the first raised portion 4 is formed higher than the second raised portion 5, the side of the buttocks is lifted and the spine is naturally extended. The second raised portion 5 prevents the buttocks from sliding forward, so that a sense of stability can be obtained when sitting.

  Further, since the horizontal portion 6 of the back pad 3 supports the back side of the pelvis, the posture is stabilized. Further, since the vertical portion 7 supports the back side of the spine, the scapula and muscles on both sides thereof do not contact the back pad 3 and the backrest 13, and the movable range is large and good blood circulation can be maintained. Since the tip of the vertical portion 7 is warped, the spine naturally stretches when leaned and maintains a good posture.

  That is, when the chair pad 1 is placed on the chair 11, even if sitting for a long time, blood circulation is not disturbed and the patient does not get tired, and the posture is corrected and the lower back is not damaged.

  The chair pad may be formed of an impact absorbing material such as low-resilience urethane or sponge, or other soft material, in addition to the air-filled bag. In the case of softness, a material harder than other parts may be used only near the back of the butt and the knee. Also, the size of the pad is not limited to the above. In addition, even when the chair is configured so as to have the same soft raised portion as that when the chair pad 1 is attached as described above, a preferable effect is similarly obtained.

It is a perspective view which shows the state which mounted the pad 1 for chairs by one Embodiment of the invention on the chair 11 which has the planar seat surface 12 and the backrest 13. FIG. It is a top view of pad 1 for chairs. FIG. 3A is a front view of the back pad 3 in the chair pad 1, and FIG. 3B is a front view of the laying pad 2. It is a side view which shows the state which uses the pad 1 for chairs.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chair pad 2 Laying pad 3 Back pad 4 1st rising part 5 2nd rising part 6 Horizontal part 7 Vertical part 8 Button 11 Chair 12 Seat surface 13 Backrest

Claims (10)

  A chair characterized in that a seating surface is formed so as not to compress the rear surface of the thigh between the buttocks and the portion close to the back of the knee.   A chair characterized in that a backrest is formed so as to support the rear part of the spine but not to press the left and right side parts. In the seat surface, a first raised portion is formed on the portion where the buttocks are placed, and a second raised portion is formed on the portion where the portion close to the back of the knee is placed,
The chair according to claim 1 or 2, wherein a third raised portion is formed in a portion of the backrest where the back of the spine contacts.   A pad that is laid on the seat surface of a chair and is formed so as not to press the back of the thigh between them while supporting the buttocks and the part near the back of the knee And chair pad.   A first raised portion is formed in a portion on which a butt is placed, and a second raised portion lower than the first raised portion is formed in a portion on which a portion close to the back of the knee is placed. Item 5. A chair pad according to Item 4.   A pad for use against a backrest of a chair, wherein the pad is formed so as to support a rear portion of the spine but not to compress portions on both sides thereof.   A horizontal portion that contacts the back side of the pelvis and a vertical portion that extends upward from the center of the horizontal portion and contacts the back portion of the spine are integrally formed, and the vertical portion is a curved surface along the back. The chair pad according to claim 6, wherein the chair pad is formed to include a shaped surface.   The chair pad according to any one of claims 4 to 7, wherein the chair pad is configured by a bag capable of enclosing air.   The pad for a chair according to any one of claims 4 to 8, wherein a pad used on a seat surface of the chair is connected to a pad used by leaning against a backrest. The pad used on the seat surface of the chair and the pad used while leaning against the backrest are both composed of bags that can contain air, and each is separably connected as a separate bag. The pad for chairs in any one of Claims 4-9 characterized by these.

Images