JP2004329812A - Lumbar pain preventive cushion - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lumbar pain preventive cushion which solves the following problems: attaching a lumbar support to a sheet cover requires effort and time, a connecting part inserted between a back part and a seat part of a seat tends to slip easily, and attaching a slipping-off preventive member to a free end can prevent slipping but stability is bad. <P>SOLUTION: The cushion has a back part 3 of the cushion, a seat part 4 of the cushion, which are zoned in a cushion body 1 stitched a base cloth and an outer material, and a lumbar cushion 5 slidably attached to the back of the cushion. A pocket is provided between the base cloth and the outer material of the lumbar cushion. Moreover, the cushion has a cushion part for a back bone and a back slipping preventive cushion part at the back. The cushion has a cushion part for a crotch, a cushion part for a thigh, and a seat slipping preventive cushion part at the seat. Flexible cushion layers are provided inside the cushion and zoned by stitches. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to a cushion for preventing lower back pain laid on a seat of a vehicle, and more particularly to a cushion for preventing lower back pain that reduces a burden on a lower back by maintaining a correct posture of a seated person.
[0002]
[Prior art]
Conventionally, various types of cushions used for vehicle seats for protecting the lumbar portion of this kind have been developed. For example, a lumbar support is attached to the inside of a seat cover of a seat so as to be vertically adjustable (Patent) Document 1), a waist pillow having cushioning properties suspended from above the seat with a cord (see Patent Document 2), and a seat back of the seat in order to lay the seat and the cushion sheet so as not to come off. And a seat-like connecting portion to be inserted between the seat back and the seat portion of the seat on the back surface of the seat (see Patent Document 3). Japanese Patent Application Laid-Open Publication No. H11-163,087 discloses a belt-like structure stretched in the vicinity of the back hem and having a retaining member attached to its free end.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-325651 [Patent Document 2]
Japanese Utility Model Registration No. 3079009 [Patent Document 3]
JP-A-8-24089 [Patent Document 4]
Japanese Patent Publication No. 48-3712
[Problem to be solved]
However, when the lumbar support is attached to the inside of the seat cover so that the lumbar support can be adjusted vertically, the lumbar support is attached to the inside of the seat cover, and it takes time and effort to attach, and the seated person changes. In such a case, it is not easy to adjust even if it is mounted so that the position can be adjusted, and if a waist pillow with cushioning properties is hung with a cord, it is only the waist, and there is no sense of stability and it looks outward In addition, in the case of extending and inserting a sheet-like connecting portion to be inserted between the seat back and the seat seat portion on the back surface, it easily moves with the cushion and comes off, In the case where a band is stretched near the back hem of the cushion and a retaining member is attached to its free end, it is difficult to remove from the seat, but the cushion is a conventional sponge. Stability which was used of a flexible material as a cushion material was a bad thing.
[0005]
[Means for Solving the Problems]
The present invention has been made in view of the above problems, and as a result of diligent studies, the cushion for preventing low back pain according to claim 1 has a cushion body and a cushion body which are laid and sewn by laminating a base fabric and a surface material and laying them on a seat. A cushion back portion formed by widening the upper side narrowed by the stitches and narrowed down by the sewn stitches, and a cushion seat portion laid on the seat seat portion formed narrowly on the back and a wide front portion narrow on the back. A waist cushion slidably attached to the waist region of the back of the cushion where the seated occupant's waist is located.The waist cushion is formed by laminating a base cloth and a surface material and sewing them to narrow the central portion. It is formed wider as it goes to both sides, and a cushion layer is provided between the base fabric and the outer material, and a bag-like pocket portion opening on the upper side or the lower side is provided.
[0006]
Further, the cushion for preventing back pain according to claim 2 is the cushion for preventing back pain according to claim 1, wherein the back portion is provided above the waist portion of the back of the cushion and located below the shoulder of the seated person. A backbone cushion part provided in the center of the back part where the backbone of the seated person is located, a shoulder blade cushion part provided on both sides of the backbone cushion part, and a back displacement prevention cushion part provided outside the shoulder blade cushion part. The seat cushion is provided with a flexible cushion layer having a low resilience and a low resilience inside the backbone cushion portion, the scapula cushion portion, and the back portion prevention cushion portion. Part where the buttocks of the occupant are located, a front part provided in front of the seat part, and a crotch cushion in which the crotch of the seated person provided in the center of the front part is located Crotch portion provided on both sides of the crotch cushion portion, the rear side of the thigh of the seated person provided on both sides of the crotch cushion portion, and a cushion for preventing displacement of the seat portion provided on the outside of the thigh cushion portion for preventing displacement in the width direction. The cushion portion for the crotch, the cushion portion for the thigh, and the cushion portion for preventing displacement of the seat portion are formed by embedding a flexible cushion layer having low resilience and low restoring property and partitioned by stitches.
[0007]
Furthermore, the cushion for preventing back pain according to claim 3 is the cushion for preventing back pain according to claim 1 or 2, wherein the back of the stitch between the cushion back and the cushion seat has a seat back and a seat seat. A cushion fixing portion in which a swelling member formed in a columnar shape with a flexible member is provided at an end side to be inserted into a gap with the portion is extended.
[0008]
In addition, the cushion for preventing low back pain according to claim 4 is the cushion for preventing low back pain according to claim 1 to claim 3, wherein a mounting device is attached to the back of the cushion.
[0009]
Effect of the Invention
The cushion for preventing low back pain according to the present invention is formed such that the upper portion of the cushion back is formed wider and the lower portion is formed narrower, and the back portion of the cushion seat is formed narrower and the front portion is formed wider by stitches. The lumbar cushion is slidably attached to the lumbar region, and the cushion layer is provided inside and a pocket is formed so that the thickness can be adjusted so that the posture of the occupant is correct. In addition, the back part of the cushion back, the back cushion part, the scapula cushion part, and the back part prevention cushion part are provided with a flexible cushion layer having low resilience and low restoring property, and stitching. In the front part of the cushion seat, the crotch cushion, the thigh cushion, and the cushion for preventing the seat from slipping have low rebound and low resilience. It has a flexible cushion layer with originality and is partitioned by stitches.When seated, it slowly sinks in accordance with the unevenness of the body and fits firmly into the occupant's body shape and disperses body pressure to reduce fatigue. And a cushion fixing part in which a pillar-shaped bulging member made of a flexible member is provided at the tip side to be inserted into the gap between the seat back and the seat seat part. The extension and the addition of the mounting device make it possible to prevent the device from being displaced or detached.
[0010]
Therefore, an object of the present invention is to reduce the burden on the waist by keeping the posture of the seated person correctly, to sink slowly according to the unevenness of the body of the seated person, to fit the body, and to shift from the seat. An object of the present invention is to provide a cushion for preventing back pain that does not come off.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the cushion for preventing back pain according to the present invention will be specifically described with reference to the drawings.
[0012]
FIG. 1 is a perspective view for explaining a use state of the embodiment of the cushion for preventing back pain of the present invention, FIG. 2 is a plan view of the embodiment of the cushion for preventing back pain of the present invention, and FIG. FIG. 4 is an explanatory view showing a cross section of an embodiment of a cushion for preventing back pain according to the present invention; FIG. 4 is a plan view of a cushion for a lower back according to an embodiment of the cushion for preventing back pain according to the present invention; It is explanatory drawing which made the embodiment of the cushion for low back pain into the cross section of the cushion for low back.
[0013]
The present invention relates to a cushion for preventing back pain laid on a vehicle seat, and more particularly, to a cushion for preventing back pain that reduces the burden on the waist by maintaining the posture of a seated person correctly. The cushion for preventing low back pain according to item 1 is a cushion body 1 in which a base cloth 1A and a surface material 1B are laminated, the outer peripheral edge thereof is sewn and laid on a vehicle seat, and the cushion body 1 is sewn in the width direction of the cushion body 1. A cushion back portion 3 formed by the stitch 2 and having a wide upper portion and a narrower lower portion and laid on the seat back portion A, and a cushion seat portion formed with a narrower rear portion and a wide front portion and laid on the seat seat portion B. And a waist cushion 5 slidably mounted in a vertical direction on a waist region 3a where the waist of a seated person of the cushion back 3 is located, wherein the waist cushion 5 comprises a base cloth 5A and a surface material. B, the outer peripheral edge is sewn and the widthwise central portion is formed to be narrower and wider toward both sides. A cushion layer 5C is interposed between the base cloth 5A and the outer material 5B and the upper side or A bag-shaped pocket portion 5D that opens on the lower side is provided inside so that the thickness can be adjusted.
[0014]
Further, the back pain preventing cushion according to claim 2 is the back pain preventing cushion according to claim 1, wherein the back part 3 b is located below the shoulder of the seated person above the waist part 3 a of the cushion back part 3. A backbone cushion portion 3ba provided at the center of the back portion 3b on which a seated person's spine is located, and a shoulder blade cushion portion 3bb provided on both sides of the backbone cushion portion 3ba on which seated person's shoulder blades are respectively located; A back displacement prevention cushion portion 3bc provided on the outside of each scapula cushion portion 3bb for preventing displacement in the width direction; the backbone cushion portion 3ba, the respective scapula cushion portions 3bb, and the respective back displacement prevention cushions; The part 3bc is provided with a flexible cushion layer 1C having a low resilience and a low resilience, and is partitioned by the stitches 2 and A seat portion 4a provided behind the cushion seat portion 4 where the buttocks of the seated person are located, a front portion 4b provided in front of the seat portion 4a, and a seated portion provided in the center of the front portion 4b. The crotch cushion portion 4ba where the crotch is located, the thigh cushion portion 4bb provided on both sides of the crotch cushion portion 4ba where the rear side of the thigh of the seated person is located, and the outside of each thigh cushion portion 4bb. A cushion for preventing displacement in the width direction is provided, and the cushion for crotch portion 4ba, the cushion for thighs 4bb, and the cushion for preventing seat displacement 4bc are respectively low. A flexible cushion layer 1 </ b> C having resilience and low resilience is provided inside and partitioned by stitches 2.
[0015]
Further, the cushion for preventing back pain according to claim 3 is the cushion for preventing back pain according to claim 1 or 2, wherein the cushion for preventing back pain is provided on the back surface of the stitch 2 between the cushion back part 3 and the cushion seat part 4. A cushion fixing portion 6 in which a swelling member 6a formed in a pillar shape by a flexible member is provided at an end side to be inserted into a gap between the seat back portion A and the seat portion B of the seat along the stitch 2 is extended. is there.
[0016]
In addition, the cushion for preventing back pain according to claim 4 is the cushion for preventing back pain according to claims 1 to 3, wherein an attachment 7 for attaching to a seat is provided on an upper side of the cushion back 3. It was done.
[0017]
That is, as shown in FIGS. 1 to 3, the cushion main body 1 of the embodiment of the cushion for preventing back pain according to the present invention is obtained by laminating at least a base cloth 1A cut to be laid on a vehicle seat and a dress material 1B. The base fabric 1A has a thickness of about 3 mm to 10 mm on the side that comes into contact with the vehicle seat, is formed of a hard cotton nonwoven fabric such as polyester or a woven fabric, and has appropriate hardness. The outer material 1B has a thickness of about 1 mm to 2 mm on the side that comes in contact with the occupant, and is formed in a three-dimensional mesh or the like with a breathable member made of polyester, and has a U-shape with an elongated tape such as a cloth woven with a plain woven outer periphery. It is sewn around in a shape.
[0018]
The cushion body 1 divides a cushion back portion 3 laid on the seat back portion A and a cushion seat portion 4 laid on the seat seat portion B by a stitch 2 so as to be freely bent. In accordance with the angle.
[0019]
Further, the upper part of the cushion back 3 where the lower part of the seated person's shoulder is located is formed wider, and the lower part where the seated person's waist is located is formed narrower. A cushion seat portion 4 is extended at a bending position between the seat back portion A and the seat seat portion B via a stitch 2, and the cushion seat portion 4 has a narrow width at the back where the seated portion of the seated person is located. It is formed wide at the front where the seated person's thighs are located.
[0020]
Next, the waist cushion 5 is attached to the waist region 3a where the waist of the occupant of the cushion back 3 is located in a vertically slidable manner. 5E, the rubber band 5E is extended and inserted from above the cushion back 3, and is held at an appropriate position by the elasticity of the rubber band 5E.
[0021]
Further, the waist cushion 5 is formed by laminating the base cloth 5A and the outer material 5B, and sewing the outer peripheral edge in a U-shape with an elongated tape such as a plain-woven cloth or the like. Between them, a cushion layer 5C such as a sponge is provided, and the widthwise central portion is formed so as to be narrower toward both sides.
[0022]
Further, the pocket portion 5D is opened at the upper side or the lower side of the waist cushion 5 to form a storage portion. When the thickness of the flexible cushion layer 5C is insufficient, a towel or the like is stored so as to store the towel. The thickness of the cushion 5 can be adjusted.
[0023]
Further, a stitch 2 is sewn between the back part 3b where the lower part of the seated person's shoulder on the upper side of the cushion back part 3 is located and the waist part 3a where the waist of the seated person is located on the lower side. 3b includes a backbone cushion portion 3ba, a scapula cushion portion 3bb, and a back displacement prevention cushion portion 3bc. The backbone cushion portion 3ba is provided at the center where the backbone of the seated person is located. 3bb is provided on both sides of the spine cushion portion 3ba where the seated person's scapula is located, and the back displacement prevention cushion portion 3bc is provided outside the scapula cushion portion 3bb to prevent the seated person from shifting in the width direction. Is what it is.
[0024]
A flexible cushion layer 1C formed of a low resilience urethane having a thickness of about 10 mm to 30 mm, respectively, between the base fabric 1A and the outer fabric 1B of the backbone cushion portion 3ba, the scapula cushion portion 3bb, and the back displacement prevention cushion portion 3bc. The interior is divided by stitches 2. The low-rebound urethane with low resilience and low resilience is one that sinks slowly and swells slowly. Since it sinks slowly, body pressure is dispersed and fatigue can be reduced, and a correct posture can be maintained.
[0025]
Next, a stitch 2 is sewn between the seat portion 4a on the rear side of the cushion seat portion 4 where the buttocks of the seated person are located and the front portion 4b where the thighs of the seated person are located on the front side. The portion 4b is provided with a crotch cushion portion 4ba, a thigh cushion portion 4bb, and a seat portion displacement prevention cushion portion 4bc. The crotch cushion portion 4ba is provided at the center where the crotch of the seated person is located. The thigh cushion portions 4bb are provided on both sides of the crotch cushion portions 4ba in which the rear sides of the thighs of the occupant are respectively located. The seat portion shift prevention cushion portions 4bc are provided to prevent the occupant from shifting in the width direction. Is provided outside the thigh cushion portion 4bb.
[0026]
The crotch cushion portion 4ba, the thigh cushion portion 4bb, and the seat portion displacement prevention cushion portion 4bc each have a thickness of about 10 mm to 30 mm between the base fabric 1A and the outer material 1B, similarly to the cushion back portion 3 described above. The flexible cushion layer 1C made of low resilience urethane is provided inside and is partitioned by the stitches 2. The low resilience urethane having low resilience and low resilience is one that sinks slowly and swells slowly. Since the human slowly sinks in accordance with the unevenness of the body of the seated person, the body pressure is dispersed and fatigue can be reduced, and a correct posture can be maintained.
[0027]
Further, the cushion fixing portion 6 has a bag-shaped bottom provided with a columnar swelling member 6a formed of a flexible member, and the opening side is provided with a stitch on the back surface of the stitch 2 between the cushion back portion 3 and the cushion seat portion 4. 2 and is inserted into the gap between the seat back A and the seat B when the cushion body 1 is laid on the seat. The bulging member 6a is a flexible member. As a result, it is reduced when passing through the gap between the seat back portion A and the seat seat portion B, and expands after passing so that there is no dropout.
[0028]
In addition, the mounting device 7 is a belt-shaped device with a fastener such as an adjuster interposed therebetween, and has both ends attached to the upper back surface of the cushion back portion 3 and is already provided above the seat back portion A of the vehicle seat. It is wound around a mounting portion of the headrest and fastened with a fastener such as an adjuster, and the mounting tool 7 is not particularly limited as long as it can be fixed to a seat in consideration of various considerations.
[0029]
【The invention's effect】
The cushion for preventing low back pain according to the present invention has the above-described configuration, in which the upper portion of the cushion back of the cushion body is formed wide and the lower portion is narrow, and the depth of the cushion seat portion extended through the stitch is narrowed. The front is widened to fit the seat and the occupant. Furthermore, the cushion for the waist has a cushion layer inside and a pocket is formed, and is slidably attached to the waist. It is possible to easily fit the seated person's body shape, correct the seated person to the correct posture, and furthermore, the backbone cushion part provided at the back part of the cushion back, the scapula cushion part, and the back part prevention cushion part A flexible cushion layer with low resilience and low resilience is installed and partitioned by stitching, and a crotch cushion part and a thigh for the front part of the cushion seat part The cushioning part and the cushioning part for preventing slippage of the seat part have a flexible cushion layer with low resilience and low resilience inside and are partitioned by stitches, and when seated, slowly sink according to the unevenness of the body and sit down It fits exactly into the body shape of the person and disperses body pressure to reduce fatigue and maintain a correct posture.Furthermore, a flexible member at the tip side inserted into the gap between the seat back and the seat seat The fact that the cushion fixing part with the pillar-shaped bulging member inside was extended and that the wearing equipment was provided makes it possible for there to be no deviation or disengagement. It is a high invention.
[Brief description of the drawings]
FIG. 1 is a perspective view for explaining a usage state of an embodiment of a cushion for preventing back pain according to the present invention.
FIG. 2 is a plan view of an embodiment of a cushion for preventing back pain according to the present invention.
FIG. 3 is an explanatory view showing a cross section of an embodiment of a cushion for preventing back pain according to the present invention.
FIG. 4 is a plan view of a low back cushion according to an embodiment of the low back pain preventing cushion of the present invention.
FIG. 5 is an explanatory view showing a back pain preventing cushion according to an embodiment of the present invention as a cross section of a waist cushion.
[Explanation of symbols]
DESCRIPTION OF REFERENCE NUMERALS A Seat back B Seat seat 1 Cushion body 1A Base cloth 1B Outer fabric 1C Flexible cushion layer 2 Stitch 3 Cushion back 3a Waist part 3b Back part 3ba Spine cushion part 3bb Scapula cushion part 3bc Back slip prevention cushion part 4 Cushion seat part 4a Seat portion 4b Front portion 4ba Crotch cushion portion 4bb Thigh cushion portion 4bc Seat displacement prevention cushion portion 5 Waist cushion 5A Base cloth 5B Outer material 5C Flexible cushion layer 5D Pocket portion 5E Rubber band 6 Fixed portion 6a Swelling Member 7 Wearing equipment

Claims (4)

A cushion body to be laid on a vehicle seat by laminating a base fabric and a surface material and sewing the outer peripheral edge thereof, and the upper portion divided by the stitches sewn in the width direction of the cushion body is wide and the lower portion is narrow. A cushion back portion formed and laid on the seat back and a cushion seat portion laid on the seat seat portion formed narrowly in the back and wide in the front and laid on the seat seat portion, and a waist portion where the waist portion of the occupant of the cushion back portion is positioned vertically. A waist cushion slidably attached, the waist cushion being laminated with a base fabric and a surface material, sewing an outer peripheral edge, and narrowing a center portion in a width direction to be narrower on both sides. A cushion for preventing back pain, wherein a cushion layer is formed between the base fabric and the outer material, and a bag-shaped pocket portion opening on an upper side or a lower side is formed therein so that the thickness can be adjusted. A back portion where the lower part of the seated person's shoulder is located above the waist portion of the cushion back portion, a backbone cushion portion provided in the center of the back portion where the seated person's spine is located, and both sides of the backbone cushion portion A scapula cushion portion in which the scapula of the seated person is provided, and a back displacement prevention cushion portion provided outside the respective scapula cushion portions to prevent displacement in the width direction, wherein the backbone cushion portion and the Each of the scapula cushion portions and the respective back slip prevention cushion portions are provided with flexible cushion layers having low resilience and low restorability, and are partitioned by stitches, and seating is provided at the rear of the cushion seat portion. Part where the hips of the person are located, a front part provided in front of the seat part, and a crotch cushion provided in the center of the front part where the crotch of the seated person is located Portion, a thigh cushion portion provided on both sides of the crotch cushion portion, in which the rear side of the thigh of the seated person is located, and a seat portion provided on the outside of each thigh cushion portion to prevent displacement in the width direction. The crotch cushion portion, the respective thigh cushion portions, and the respective seat displacement prevention cushion portions each include a flexible cushion layer having low resilience and low resilience. The cushion for preventing lower back pain according to claim 1, wherein the cushion is defined by stitches. A swelling member formed in a column shape with a flexible member at a tip side inserted into a gap between the seat back and the seat seat along the stitch on the back surface of the stitch between the cushion back and the cushion seat. The cushion for preventing low back pain according to claim 1 or 2, wherein the cushion fixing portion is extended. The cushion for preventing low back pain according to any one of claims 1 to 3, wherein an attachment for attaching to a seat is attached to an upper side of the cushion back.

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