JP4882727B2 - Seat pad and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat pad with high productivity and design flexibility by weaving a surface by double weaving. <P>SOLUTION: This seat pad has: a surface woven by the double weaving and formed of a single textile fabric having a single layer part and a hollow bag-shaped double layer part; and a cushioning member having elasticity, sealed inside the double layer part and having the same shape as that of the double layer. This seat pad is mounted on the seating face of a seat body, and the double layer part is formed into a portion and shape of the body which are desired to be supported. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a detachable seat pad that is mounted on a seating surface of a seat to enhance the cushioning property of the seat, and a method for manufacturing the same.

  As this type of seat pad, there is, for example, Patent Document 1. In the seat of Patent Document 1, a seat pad is divided into a plurality of unit pads, and each is detachably mounted on a seating surface of the seat body. Each unit pad is composed of a cushioning material and a skin covered from above, and a plurality of hook-shaped locking members are provided at the lower end of the skin, and each engaging member is placed at a predetermined position on the sheet surface. It is mounted by being hooked on the drilled engagement hole.

  Moreover, although it is not for seats, there exists patent document 2 as a cushion pad mounted in a bed or a chair. This cushion pad is made of woven cloth made of a single woven fabric having a single layer portion and a hollow bag-like multi-layer portion by bag weaving, and an elastic member is inserted into the hollow multi-layer portion. And the massage effect and the acupressure effect are given to the user by the surface uneven | corrugated shape formed by forming several multilayer parts in parallel.

Japanese Patent Laid-Open No. 9-2399166 JP 2000-342389 A

  In Patent Document 1, by using a unit pad obtained by dividing the seat pad into a plurality of parts, it is possible to accurately match the body shape of the seated person and to provide efficient support. However, since the seat pad is made into a plurality of independent unit members, it is necessary to provide an engaging means for each unit pad in order to make each unit detachable from the seat body, and the productivity is poor. The attaching / detaching work is also complicated.

  On the other hand, the cushion pad of Patent Document 2 is formed as one member in which a plurality of elastic members are connected by a single skin by weaving the skin with a bag weave. Its handling is easy. However, the cushion pad of Patent Document 2 has only a plurality of round bar-like elastic members arranged side by side in order to produce a massage effect and acupressure effect. It cannot respond to. Moreover, since the cushion pad of patent document 2 does not provide the engagement means to a mounting surface in particular, since it is a thing used only by mounting in a bed or a chair, even if this is applied to a seat, The position is easily shifted due to a change in the posture of the seated person or inertia gravity (G), and the usability is poor.

  Then, in view of the said subject, this invention aims at providing a seat pad with high productivity and a high design freedom by weaving the skin by bag weaving. An object of the present invention is to provide a seat pad that can be easily attached and detached by forming it as a single member while dividing the seat pad into a plurality of parts. An object of this invention is to propose the manufacturing method of the seat pad which can be manufactured efficiently.

  In order to achieve the above object, the first invention comprises a skin made of a single woven fabric woven by bag weaving and having a single layer portion and a hollow bag-like multilayer portion, and an inside of the multilayer portion. The present invention relates to a seat pad that is enclosed and has a cushioning material having the same shape as that of the multi-layered portion, and is attached to the seating surface of the seat body. And the said multilayer part is formed in the site | part which wants to support a seated person's body among the said single woven fabric, and the said buffer material has predetermined thickness. Moreover, the same shape unevenness | corrugation which the said multilayer part protruded by the predetermined amount from the front and back of the said single layer part is formed in the front and back of the said seat pad. That is, the seat pad has a shape in which the front surface side and the back surface side thereof are symmetrical with respect to the intermediate surface. Furthermore, a recess having the same shape as the multilayer portion is formed at a position facing the multilayer portion of the seat pad on the seating surface of the seat body, and the multilayer portion is attached to the concave portion of the seat surface. It is possible to do this.

  Here, bag weaving refers to a layered portion in which the front and back warp yarn structures are each plain weave in a single woven fabric, and the front and back warp yarn structures overlap each other, and the front and back warp yarn structures are woven together to form a single structure. This is one of the double weaving methods in which the single layer portion is continuously mixed. By weaving the single layer part so as to surround the multilayer part, the multilayer part becomes a hollow bag shape. In other words, the outer periphery of the hollow bag-shaped multi-layer part is closed by the single layer part.

  According to a second aspect, in the seat pad according to the first aspect, a plurality of the multi-layer portions are independently formed in the skin made of the single woven fabric.

  According to a third aspect of the present invention, in the seat pad according to the first or second aspect of the invention, the depth of the concave portion is half the thickness of the multilayer portion, and the seat pad is attached to the seat body. Then, the back surface of the multilayer portion and the bottom surface of the concave portion are in close contact, and the back surface of the single layer portion and the surface of the sheet body are close to each other.

  A fourth invention is a method for manufacturing a seat pad, wherein a fabric having a single layer portion and a hollow bag-like multi-layer portion having the same pattern is woven by bag weaving, and the multi-layer portion is a seated person. In the body, a portion and shape to be supported are formed, and an opening margin for inserting and sealing the buffer material in the multilayer portion is continuously bulged and formed on a part of the outer periphery of the multilayer portion. Next, the fabric is passed through the bulging middle of the opening allowance, and the other part is cut into a single layer part with a predetermined shape surrounding the multilayer part to form a skin made of a single woven fabric. And the buffer material is inserted in the multilayer part from the opening of the multilayer part formed by the opening margin.

  According to a fifth aspect of the present invention, in the seat pad manufacturing method according to the fourth aspect of the present invention, an engagement portion formed on a seating surface of the seat main body to be attached to a part of the outer peripheral edge of the skin including the opening allowance. By providing the engaging member to be engaged, the opening of the overlapping portion is sealed.

  According to the present invention, since the skin is woven by a bag weave having a single layer portion and a hollow bag-like multilayer portion, a plurality of skin shapes of the same pattern are continuously woven on a piece of fabric. Since it is possible to obtain a plurality of skins from a single piece of fabric simply by sequentially cutting it into a predetermined shape, the productivity is high. At this time, by simply designing the weaving shape of the fabric, the multi-layered portion can be easily formed into a portion and shape to be supported in the seated person's body, and the degree of freedom in design is high. Further, since it is only necessary to enclose the cushioning material in the hollow bag-like multi-layered part, for example, a two-skin skin is prepared separately, and these are laminated on the front and back surfaces of the cushioning material, and the outer peripheral part is stitched. This eliminates the need for this, making production much simpler.

  By forming unevenness of the same shape in which the multilayer portion protrudes from the front and back surfaces of the single layer portion by a predetermined amount on the front and back surfaces of the seat pad, a reversible structure that can use both the front and back surfaces of the seat pad as a seating surface can be achieved. At this time, since the outer skin is woven in a bag weave, the design of the front and back of the seat pad can be easily made different without post-printing etc. Can do.

  By forming a concave portion of the same shape as the multilayer portion at a position facing the multilayer portion of the seat pad on the seating surface of the seat body, and positioning the multilayer portion in the concave portion of the seat surface, positioning of the seat pad is facilitated. Become. Due to the difference in the structure between the single layer part and the multilayer part, the height difference is naturally generated on the seat pad surface, so it is possible to freely and freely use the part of the seated person's body to support and the part that does not Can be designed easily.

  By forming a plurality of layered parts independently in the skin made of a single woven cloth, one member (seat) while the pad part is divided into a plurality of parts so as to accurately support the body of the seated person Pad), the productivity is high and the number of parts can be reduced. In addition, since the engaging means for the seat body may be formed as a single member, the productivity is high and the attaching / detaching operation to the seat body is facilitated.

  If the depth of the recessed portion of the seating surface is set to half the thickness of the multilayer portion, when the seat pad is attached to the seat body, the back surface of the multilayer portion and the bottom surface of the concave portion are in close contact, and the back surface of the single layer portion and the surface of the seat body Are close to each other. Therefore, it is possible to accurately bring the layered portion into contact only with the portion of the seated person's body to be supported while suppressing the protrusion amount of the seat pad from the seating surface of the seat body. On the other hand, since the single layer portion is recessed by a predetermined amount from the surface of the multilayer portion, a certain gap is formed between the single layer portion and the body of the seated person. This gap can suppress stuffiness and the like when the seated person sits on the seat for a long time.

  At the time of manufacturing the seat pad, the opening margin is continuously bulged and formed on a part of the outer periphery of the multilayer portion, and the other portion passes through the middle portion of the aperture margin and the other portion has a predetermined shape surrounding the multilayer portion. Therefore, it is not necessary to provide an opening for inserting the cushioning material into the multi-layer portion after cutting the skin, so that the production efficiency is good.

  At this time, by providing the engaging member on a part of the outer periphery of the skin including the opening allowance, the opening can be sealed. That is, it is possible to save the trouble of sealing the opening of the overlapping portion by sewing or the like after inserting the buffer material.

  Hereinafter, embodiments of a seat using a detachable seat pad according to the present invention will be described with reference to the drawings. However, the present invention is not limited thereto, and various modifications can be made without departing from the scope of the present invention. Is possible. The seat pad of the present invention is not limited to various vehicles such as automobiles and trains, but can be widely applied to seats for ships and aircrafts. Hereinafter, embodiments applied to automobile seats will be described as examples. explain.

  As shown in FIG. 1, the seat body 1 has a general basic configuration including a seat back 2, a seat cushion 3, and a headrest 4. And the seat pad which concerns on this invention for improving the cushioning properties of a seat is detachably mounted on the seating surface of the seat back 2 and / or the seat cushion 3.

Example 1
The seat pad of Example 1 is manufactured as a back pad 20 that can be detachably attached to the seat back 2 of the seat body 1. As shown in FIGS. 1 and 3, the back pad 20 is configured to support around the scapula area excluding the spine portion and the waist portion of the seated person, and has two overlapping layers having the same shape on both the front and back sides. The parts 21 and 21 are divided and arranged symmetrically, and the remaining part is a single member connected and surrounded by the single layer part 22. Specifically, as shown in FIG. 5, a cover 23 made of a single woven fabric having a single layer portion 22 and a hollow bag-like multi-layer portion 21 is covered with a bag weave so as to cover the entire seating surface of the seat back 2. The buffer layer 24 is formed in such a size and shape, and a cushioning material 24 having the same shape as the multilayer portion 21 is enclosed in the multilayer portion 21.

  With this configuration, the multilayer portion 21 has a certain thickness due to the buffer material 24, and the multilayer portion 21 protrudes from the front and back surfaces of the back pad 20 by the same amount from the front and rear surfaces of the single layer portion 22. The unevenness | corrugation of the same shape is formed and the surface side and a back surface side are exhibiting the shape which makes a plane symmetry with respect to an intermediate surface. Therefore, when the back pad 20 is attached to the seat back 2, only the multilayer portion 21 comes into contact with the back surface of the seated person. Thereby, the multilayer part 21 becomes a support part that supports the body of the seated person, and the single layer part 22 becomes a non-supporting part that does not directly contact the body of the seated person. That is, a plurality of multi-layered portions 21 serving as support portions are formed in one seat pad in a state of being divided into parts and shapes to be supported in the seated person's body.

  As shown in FIGS. 1 and 3, an engagement member 25 that can be engaged with an engagement portion 6 formed on a seat back 2 to be described later extends from the shoulder portion of the back pad 20 to the left and right side lower portions. Is provided. The engaging member 25 is provided using the outer peripheral edge of the skin 23 as it is, and a horizontally long resin rail 25 serving as an engaging member is provided at the outer peripheral end of the single layer portion 22 including the outer side of the multilayer portion 21. ing. Thus, by providing the resin rail 25 as an engaging member on the outer peripheral edge of the skin 23, the terminal treatment of the skin 23 in the resin rail installation portion is omitted. Further, the front and back surfaces of the single layer portion 22 between the left and right multilayer portions 21 and 21 of the back pad 20 are paired with a male button 7 of a snap button as an engaging means provided on the seat back 2 described later. The female button 26 of the snap button as the engaging means is provided on the left and right.

  In the back pad 20, the multilayer portion 21 and the single layer portion 22 have the same shape on both the front and back surfaces, and the engaging member (resin rail 25) and the engaging means (female button 26) are provided on the single layer portion 22. Therefore, the engaging member and the engaging means are provided at the center position in the thickness direction of the multilayer portion 21. By being configured as described above, the back pad 20 has a reversible structure in which both front and back surfaces can be used. By effectively using this reversible function, the skin 23 has a different color pattern on the front and back surfaces. Note that the snap button on the back pad 20 side is the female button 26 so that even if the back of the seated person contacts the snap button, the stimulation to the seated person can be reduced as much as possible.

  Next, the manufacturing method of the back pad 20 which is a seat pad of Example 1 is demonstrated. First, as shown in FIG. 2, the multilayer portion 21 and the single layer portion 22 of the same pattern are formed by bag weaving so as to include a plurality of multilayer portions 21 corresponding to the part and shape to be supported in the body of the seated person. Weaving the fabrics that you have continuously. Next, by cutting this fabric with a cutting line indicated by a one-dot chain line in FIG. 2, a plurality of skins 23 can be obtained from one fabric. At this time, an opening allowance 27 is continuously bulged and formed on a part of the outer periphery of the multilayer portion 21 (shoulder portion in the present embodiment) for forming an opening for inserting a cushioning material into the multilayer portion 21. Then, by cutting the fabric so as to pass through the bulging middle of the opening allowance 27, an opening is formed in the multilayer portion 21 of the obtained skin 23.

  And as shown in FIG. 3, the buffer material 24 formed in the same shape as the multilayer part 21 is inserted from the opening formed in the opening allowance 27 part. The cushioning material 24 can be a foamed molded product having elasticity, such as urethane foam, and is previously molded into a predetermined shape in a forming mold before being inserted into the multilayer portion 21. Since the multi-layered portion 21 of the skin 23 has a slight stretchability due to the plain weave structure, if the buffer material 24 is formed one size larger than the multi-layered portion 21, the multi-layered portion is combined with the elasticity of the buffer material 24. 21 can be packed in a significantly tensioned state. On the other hand, the single layer part 22 has almost no stretchability due to the weft weave structure on the front and back.

  When the cushioning material 24 can be completely inserted into the multilayer portion 21, the resin rail 25 is fixed to the outer peripheral edge of the skin 23 extending from the shoulder portion of the back pad 20 including the opening of the multilayer portion 21 to the lower portions on both the left and right sides. Specifically, the synthetic resin is molded into a predetermined shape from the shoulder portion of the back pad 20 to the lower left and right sides by a well-known method such as injection molding, and the longitudinal direction is formed on the fixed base end side of the resin rail 25. With the outer peripheral end of the skin 23 of the back pad 20 inserted in the formed groove, the resin rail 25 can be fixed to the skin 23 by sandwiching the fixed base end of the resin rail 25 with heat and pressure. In this way, by directly fixing the resin rail 25 to the outer peripheral end of the skin 23 of the back pad 20, it is possible to omit the terminal treatment of the skin 23 at the resin rail 25 portion. Further, as well shown in FIG. 4, by simultaneously providing the resin rail 25 including the outer peripheral end of the opening allowance 27, it is possible to serve as a closing process for the opening of the multilayer portion 21. Except for the portion where the resin rail 25 is provided on the outer peripheral edge of the back pad 20, the cut edge may be processed by a known terminal process such as sewing.

  Finally, the back pad 20 is obtained by fixing the female button 26 of the snap button as the engaging means to the predetermined positions on the front and back of the single layer portion 22 between the left and right multilayer portions 21 and 21 by sewing or bonding. Can do.

  The back pad 20 thus obtained can be attached to the seat back 2 as follows. First, on the seating surface of the seat back 2, a notch is formed in a groove shape at a position corresponding to the resin rail 25 of the back pad 20 and extending from the shoulder portion along the outer shape of the back pad 20 to the lower left and right side ends. A slit 6 is formed, and a male button 7 constituting a snap button as an engaging means is bonded and fixed to a portion desired for the female button 26 of the back pad 20. In addition, when the back pad 20 is attached to the seat back 2, the seat back 2 is suppressed in order to prevent the multilayer portion 21 of the back pad 20 from protruding too forward, and to prevent positioning and vertical / left / right misalignment. A recess 8 having the same shape as the multilayer portion 21 of the back pad 20 is formed in the seating surface. As shown in FIG. 5, the concave portion 8 is set to a depth about half that of the multilayer portion 21, and the right and left center is inclined rearward so that the multilayer portion 21 can efficiently support a seated person.

  In addition, in order to attach the back pad 20 to the seat back 2, in the state where the headrest 4 is removed from the seat back 2 shown in FIG. 1, the back is placed in the slit 6 provided on the seating surface of the seat back 2 as shown in FIG. This is facilitated by inserting the resin rail 25 of the pad 20. The resin rail 25 inserted into the slit 6 is prevented from being unintentionally detached by the thick portion 25a at the tip of the resin rail 25 being locked to the inner peripheral edge of the slit 6. In this state, the left and right center portions of the back pad 20 are lifted from the seating surface of the seat back 2. Therefore, the female button 26 of the back pad 20 and the male button 7 of the seat back 2 are fitted. Thereby, when the back pad 20 is attached to the seat back 2, the back surface of the multilayer portion 21 and the bottom surface of the concave portion 8 are in close contact, and the back surface of the single layer portion 22 and the surface of the seat back 2 are brought close to each other. Can be accurately aligned with the shape of the seating surface of the seat back 2. 5 shows a transverse plan view at the height position of the snap buttons 7 and 26 of the seat back 2 to which the back pad 20 is attached, but illustration of members inside the seat back 2 such as an internal frame is omitted. .

  Thereafter, the headrest 4 may be attached to the seat back 2. At this time, the upper ends of the resin rails 25 of the back pad 20 and the slits 6 of the seat back 2 are hidden behind the headrest 4, and the lower ends of the back pads 20 are hidden by the seat cushion 3. Therefore, a portion of the outer peripheral end of the back pad 20 where the resin rail 25 is not provided does not necessarily have to be subjected to terminal processing such as sewing. To remove the back pad 20 from the seat back 2 in order to reverse the front and back of the seating surface or to clean it, simply pull the back pad 20 away from the seat back 2 with the headrest 4 removed from the seat back 2. Good.

(Example 2)
Next, a second embodiment of the seat pad according to the present invention will be described. The seat pad of Example 2 is manufactured as a cushion pad 30 that can be detachably attached to the seating surface of the seat cushion 3 of the seat body 1. As shown in FIG. 7, the cushion pad 30 is woven by bag weaving into a size and shape so as to cover the entire seating surface of the seat cushion 3 as shown in FIG. And a single layer portion 32 that surrounds the outer periphery of the multilayer portion 31. And it becomes the structure which enclosed the shock absorbing material 34 which is the foaming material molded product which has the same shape elasticity as this inside the multilayer part 31, The shape where a surface side and a back surface side make a plane symmetry with respect to an intermediate surface Presents.

  The multilayer portion 31 has a certain thickness due to the cushioning material 34, and on the front and back surfaces of the cushion pad 30, irregularities having the same shape in which the multilayer portion 31 protrudes from the front and back surfaces of the single layer portion 32 by the same amount are formed. . Thus, when the cushion pad 30 is attached to the seat cushion 3, the U-shaped bifurcated proximal end portion supports the seated occupant, and the U-shaped bifurcated distal end portions support the seated thigh portion. Designed to. That is, the multi-layer part 21 becomes a support part that supports the body of the seated person, the single-layer part 22 becomes a non-support part that does not directly contact the body of the seated person, and the multi-layer part 21 that becomes the support part becomes the body of the seated person It is formed in the site | part and shape which want to support among these.

  In addition, engagement members for detachably mounting the seat cushion 3 are provided at two front positions and one rear position on the outer peripheral edge of the cushion pad 30. The engaging member includes a flexible, non-stretchable fabric belt 35 and a thin resin clip 36 fixed to one end of the fabric belt 35, and the other end of the fabric belt 35 is located at the center of the cushion pad 30 in the thickness direction. It is connected. Further, a snap button female button 38 is provided on both the front and back surfaces of the single layer portion 32 of the bifurcated root portion of the cushion pad 30 as engaging means for causing the cushion pad 30 to follow the surface shape of the seat cushion base 3. ing.

  In the cushion pad 30, the multilayer portion 31 and the single layer portion 32 have the same shape on both the front and back surfaces, the engaging member is arranged in the center of the multilayer portion 31 in the thickness direction, and the engaging means (female button 38) is a single layer. Since it is provided in the portion 32, the engaging means is also provided at the center position in the thickness direction of the multilayer portion 31. By being configured as described above, the cushion pad 30 has a reversible structure in which both front and back surfaces can be used. By effectively using this reversible function, the skin 23 has a different color pattern on the front and back surfaces. Note that the snap button on the cushion pad 30 side is the female button 38, so that the stimulation to the seated person can be reduced as much as possible even if the thigh of the seated person touches the snap button.

  Next, the manufacturing method of the cushion pad 30 which is a seat pad of Example 2 is demonstrated. As shown in FIG. 6, the multi-layer part 31 and the single-layer part 32 having the same pattern are continuously formed by bag weaving so as to include a plurality of multi-layer parts 31 corresponding to the portion and shape to be supported in the body of the seated person. Woven fabrics. Next, by cutting this fabric with a cutting line indicated by a one-dot chain line in FIG. 6, a plurality of skins 33 can be obtained from one fabric. At this time, an opening allowance 37 is formed on a part of the outer periphery of the multilayer portion 31 (the rear surface of the cushion pad 30 in this embodiment) for forming an opening for inserting the cushioning material 34 into the multilayer portion 31. The opening is formed in the layered portion 31 of the obtained skin 33 by cutting the fabric so as to pass through the bulging middle of the opening allowance 37.

  And as shown in FIG. 7, the buffer material 34 formed in the same shape as the multilayer part 31 is inserted from the opening formed in the opening allowance 37 part. The cushioning material 34 may be a foamed molded product having elasticity, such as urethane foam, and is previously molded into a predetermined shape in a forming mold before being inserted into the multilayer portion 31. Since the multi-layered portion 31 of the skin 33 has a slight stretchability due to the plain weave structure, if the buffer material 34 is formed to be slightly larger than the multi-layered portion 31, the multi-layered portion 31 is coupled with the elasticity of the buffer material 34. 31 can be packed in a significantly tensioned state. On the other hand, the single-layer part 32 has almost no elasticity by the weft structure of the front and back.

  When the cushioning material 34 can be completely inserted into the multi-layered portion 31, as shown in FIG. 8, one end of the non-stretchable fabric belt 35 is sandwiched between the upper and lower opening allowances 37 and sewn. Thereby, sealing of the opening of the multilayer part 31 and attachment of an engaging member can be performed by one means. The resin clip 36 provided on the other end of the fabric belt 35 is preferably fixed in advance before the fabric belt 35 is attached to the cushion pad 3, but may be fixed after being attached to the cushion pad 3.

  Further, the fabric belt 35 in the engaging member provided at two positions in front of the cushion pad 30 uses the single layer portion 32 of the skin 33 as it is. Specifically, when the skin 33 is cut and formed from the fabric for the skin 33, the cut shape is set to a state having the fabric belt 35 as shown in FIG. Can be obtained in a state in which two fabric belts 35 are integrally formed in advance at two locations. Then, the resin clip 36 may be fixed to the front fabric belt 35 continuously with the sewing work of the rear fabric belt 35.

  As a method for fixing the resin clip 36, a thin plate-shaped resin clip 36 is formed by a known method such as injection molding, and the fabric belt 35 is formed in a groove formed in the fixing base end of the resin clip 36 in the longitudinal direction. It is possible to fix by fixing the fixed base end with heat and pressure in a state where the tip of the base is inserted. Thus, by directly fixing the resin clip 36 to the outer peripheral end of the skin 33 of the cushion pad 30, the terminal treatment of the skin 33 at the resin clip 36 can be omitted. Further, by sewing the fabric belt 35 on the opening allowance 37 portion, the terminal treatment of the opening allowance 37 portion can also be performed. Of the outer peripheral edge of the cushion pad 30, the cut edge is processed by well-known terminal processing such as sewing, except for the portion where the front side resin clip 36 is provided and the portion where the rear side fabric belt 35 is sewn, and the multi-layer portion The single layer portion 32 surrounding the outer periphery of 31 is preferably as short as possible.

  Finally, the cushion pad 30 can be obtained by fixing the female button 38 of the snap button as the engaging means to the front and back predetermined portions of the single layer portion 32 by sewing or bonding.

  The cushion pad 30 thus obtained can be attached to the seat cushion 3 as follows. At the position corresponding to the engaging member of the cushion pad 30 on the seating surface of the seat cushion 3, engaging portions that engage with the engaging members of the cushion pad 30 are formed. This engaging portion is configured by laminating a laterally long fabric strip 10 on the seating surface of the seat cushion 3 and sewing both ends in the longitudinal direction to the seat cushion 3. As a result, a planar insertion hole 11 surrounded by the belt 10 and the seat cushion 3 is formed in the middle portion in the longitudinal direction of the belt 10 so that the engaging member of the cushion pad 30 can be inserted therethrough. Further, the male buttons 12 and 12 of the snap button as the engaging means are fixed at positions corresponding to the female buttons 38 as the engaging means of the cushion pad 30.

  Then, as shown in FIG. 9, the engagement members of the cushion pad 30 are folded back inward so that the resin clips 36 are inserted from the outer peripheral side of the seat cushion 3 toward the inner peripheral side. Insert through. Specifically, since the left-right width dimension of the resin clip 36 is designed to be larger than the left-right width dimension of the insertion hole 11, the resin clip 36 is inserted into the insertion hole 11 from the outer peripheral side in an inclined state. Then, when the resin clip 36 is completely passed through the insertion hole 11, the resin clip 36 is made parallel to the band 10. Then, the left and right ends of the resin clip 36 are hooked on the left and right ends of the insertion hole 11, and the detachment thereof is restricted, so that the cushion pad 30 is securely fixed to the seat cushion 3. In the case where the resin clip 36 is extracted from the insertion hole 11 in order to remove the cushion pad 30 from the seat cushion 3, the resin clip 36 may be similarly inclined and then extracted.

  After the cushion pad 30 is securely attached to the seat cushion 3 in this way, the cushion pad 30 is brought into the surface shape of the seat cushion 3 by fitting the female button 38 of the cushion pad 30 with the male button 12 of the seat cushion 3. You can follow along exactly.

(Example 3)
Example 3 is a modification of the previous Example 2, the basic shape of which is the cushion pad for the seat cushion 3 having the multi-layer portion 31 formed in a substantially U shape, similar to Example 2. In the final form as the cushion pad 30, the point that the single layer portion 32 does not exist on the surface of the cushion pad 30 is a point to be noted in relation to the second embodiment. Therefore, the description of the third embodiment will be focused on differences from the previous second embodiment.

  The cushion pad 30 of the third embodiment is woven by bag weaving a fabric having a plurality of substantially U-shaped multi-layered portions 31 in the same pattern as in the previous second embodiment. By taking the edges, the shape as shown in FIG. 10 is obtained. In this state, the cushioning material 34 is not inserted into the multi-layer portion 31, but as shown in FIG. 11, the skin 33 is turned upside down from the state of FIG. Is inserted. Thereby, the single layer part 32 which borders the outer periphery of the skin 33 exists in the multilayer part 31, and has the big advantage that the terminal process of the skin 33 becomes unnecessary.

  On the other hand, since the fabric belt 35 as the engaging member cannot be integrally formed when the skin 33 is woven, the fabric belt 35 is formed as a separate body after turning the skin 33 upside down as shown in FIG. What is necessary is just to sew a joint member to a predetermined location. Further, since the single layer portion 32 does not exist between the U-shaped bifurcates, the fabric belt 35 is fixed to a predetermined portion of the cushion pad 30 in a state where the snap button as the engaging means is also fixed to the tip of the fabric belt 35. Can be sutured. Others are the same as those in the second embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.

(Other examples)
The multilayered portions 21 and 31 of the seat pad are not limited to the shapes of the above-described embodiments, and various other shapes can be adopted as long as the structure can support the seated person. Further, if the engaging member and the engaging means are also provided at the center position in the thickness direction of the multilayer portions 21 and 31, they can be provided at a portion other than the above-described embodiment on the outer periphery of the seat pad. In order to more effectively exhibit the function of causing the seat pad to follow the uneven shape of the seat body by the snap button, it is also preferable to embed a resin core material for shape retention inside the cushioning material.

  In Example 2 or Example 3, the opening allowance 37 itself can also be used as the fabric belt 35 by increasing the bulging dimension of the opening allowance 37. That is, after the cushioning material 34 is stuffed from the opening formed by the opening allowance 37, the resin clip 36 is fixed to the outer peripheral end of the opening allowance 37 as it is, so that the labor of inserting and sewing the separately formed fabric belt can be reduced. Save.

  In the second embodiment, the single layer portion 32 surrounding the outer periphery of the multilayer portion 31 is made as short as possible so as to be inconspicuous in appearance. On the contrary, when the amount of protrusion of the single layer portion 32 to the outside of the multilayer portion 31 is half or more of the thickness dimension of the multilayer portion 31 and the cushion pad 30 is attached to the seat cushion 3, the outward projection is performed. The single layer portion 32 can be folded back and sandwiched between the back surface of the cushion pad 30 and the seating surface of the seat cushion 3.

It is a perspective view of a sheet body and a seat pad. It is a top view which shows the pattern which weaves the skin of the seat pad of Example 1. FIG. FIG. 6 is a perspective view illustrating a process of inserting a cushioning material into the seat pad according to the first embodiment. FIG. 3 is an enlarged view of a main part of the seat pad according to the first embodiment. 1 is a cross-sectional plan view of a seat back on which a seat pad of Example 1 is mounted. It is a top view which shows the pattern which weaves the skin of the seat pad of Example 2. FIG. 10 is a perspective view showing a process of inserting a cushioning material into the seat pad of Example 2. FIG. 6 is a perspective view of a seat pad according to Embodiment 2. FIG. It is a principal part expansion longitudinal cross-sectional view of the seat cushion which mounted | wore with the seat pad of Example 2. FIG. 6 is a partially cutaway perspective view of the skin of the seat pad of Example 3. FIG. 6 is an exploded perspective view of a seat pad according to Embodiment 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat main body 2 Seat back 3 Cushion pad 4 Headrest 6 Slit (engagement part)
7 Male button (attachment means)
8 Recess 10 Band 12 Male button (engaging means)
20 Back pad 21 Multilayer part 22 Single layer part 23 Skin 24 Buffer material 25 Resin rail (engagement member)
26 Female button (engagement means)
27 Opening allowance 30 Cushion pad 31 Multi-layer part 32 Single layer part 33 Skin 34 Buffer material 35 Fabric belt 36 Resin clip 37 Opening allowance 38 Female button (engaging means)

Claims (5)

A skin made of a single woven fabric woven by bag weaving and having a single layer portion and a hollow bag-like multi-layer portion;
A cushioning material enclosed in the multilayer portion and having elasticity having the same shape as the multilayer portion;
A seat pad attached to the seating surface of the seat body,
Of the single woven fabric, the multi-layered portion is formed in a portion that wants to support the body of the seated person,
The shock-absorbing material has a predetermined thickness, and on the front and back surfaces of the seat pad, the multi-layered portion is formed with irregularities of the same shape protruding a predetermined amount from the front and back surfaces of the single-layer portion,
In the seating surface of the seat body, a concave portion having the same shape as the multilayer portion is formed at a position facing the multilayer portion of the seat pad,
A seat pad characterized in that the multilayer portion can be mounted in a concave portion of the seating surface.   2. The seat pad according to claim 1, wherein a plurality of the multi-layered portions are independently formed in a skin made of the single woven fabric. The depth of the concave portion has a depth that is half the thickness of the multilayer portion,
3. The sheet according to claim 1, wherein when the seat pad is attached to the seat body, the back surface of the multilayer portion and the bottom surface of the recess are in close contact, and the back surface of the single layer portion and the surface of the sheet body are close to each other. pad. Weaving a fabric having a single layer part and a hollow bag-like multi-layer part of the same pattern continuously in a bag weave,
The multi-layered portion is formed in a portion and shape to be supported among the seated person's body,
Furthermore, an opening margin for inserting and sealing a buffer material in the multilayer portion is continuously bulged on a part of the outer periphery of the multilayer portion,
The fabric is passed through the bulging middle of the opening allowance, and the other part is cut into the single layer part in a predetermined shape surrounding the multi-layer part to form a skin made of a single woven fabric,
A method of manufacturing a seat pad, wherein a cushioning material is inserted into the multilayer portion from the opening of the multilayer portion formed by the opening allowance. An engagement member that engages with an engagement portion formed on the seating surface of the seat main body to be attached is provided on a part of the outer peripheral edge of the skin including the opening allowance, thereby sealing the opening of the overlapping portion. The manufacturing method of the seat pad of Claim 4 which has stopped.

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