WO2010110042A1 - 被覆材の係止連結部材及び被覆クッション成形体の製造方法 - Google Patents
被覆材の係止連結部材及び被覆クッション成形体の製造方法 Download PDFInfo
- Publication number
- WO2010110042A1 WO2010110042A1 PCT/JP2010/053816 JP2010053816W WO2010110042A1 WO 2010110042 A1 WO2010110042 A1 WO 2010110042A1 JP 2010053816 W JP2010053816 W JP 2010053816W WO 2010110042 A1 WO2010110042 A1 WO 2010110042A1
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- WIPO (PCT)
- Prior art keywords
- engaging element
- loop
- covering material
- molded body
- element portion
- Prior art date
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G7/00—Making upholstery
- B68G7/12—Other elements specially adapted for fastening, fixing, or finishing, in upholstery work
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/02—Upholstery attaching means
- A47C31/023—Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5825—Seat coverings attachments thereof by hooks, staples, clips, snap fasteners or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5833—Seat coverings attachments thereof by hook-and-loop type fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
- Y10T24/2775—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener] having opposed structure formed from distinct filaments of diverse shape to those mating therewith
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/48—Upholstered article making
- Y10T29/481—Method
Definitions
- the present invention relates to a latch connection member for fixing a covering material (skin material) to a cushion molded body (cushion member) used for an automobile seat and the like, and production of a coated cushion molded body using the latch connection member Regarding the method.
- a covering material to a cushion molded body (cushion member) for an automobile seat (hereinafter, also referred to as a seat), which is one of the representative examples of the foam molded body, it is embedded in both the cushion member and the covering material.
- Hog ring method for fixing a metal wire with a metal ring bonding method for fixing a cushion member and a covering material with an adhesive, and embedding a woven or plastic hook hook-and-loop fastener in the cushion member by a mold-in method.
- an engaging member for a hook-and-loop mold-in that has improved the response to the curved surface of the seat has been proposed.
- a lock-in connection member formed by mold-in in which a hook engagement element portion group is formed on a circumferential surface of a long flexible body having a circular cross section Patent Document 1
- the lock-in connection member formed in the mold is usually integrally formed at the bottom of a narrow groove provided on the surface of the cushion member.
- a loop engaging element portion corresponding to the shape of the locking connecting member is mounted on the back surface of the covering material, and the loop engaging element portion is pushed into the groove to engage the both engaging element portions. Is fixed to the cushion member.
- the loop engaging element portion to be attached to the covering material.
- a loop engagement element portion in which a loop engagement element portion is formed on one surface of a belt-like flexible plate is disclosed (Patent Document 2). Both end portions along the length direction of the loop engaging element portion are sewn to the end portions of the two overlapping covering materials so that the loop engaging element portion becomes the outer surface.
- the covering material is fixed to the cushion member by pushing the loop engaging element portion located on the outer surface into the groove of the cushion member.
- a non-engaging element portion of the cylindrical surface fastener having a loop engaging element portion on a part of the surface is provided with a fixing portion extending outward at a substantially right angle to the loop engaging element portion, and the covering portion is covered with two sheets.
- a method of fixing the covering material to the cushion member by pressing the loop engaging element portion into the groove of the cushion member after fixing the end of the material by sewing or the like is disclosed (Patent Document 3). The method described in Patent Document 3 can easily cope with a locking portion disposed in a deep groove-like concave portion of a cushion material corresponding to a curved design.
- the hook-engaging engagement element portion molded in is usually used as a cushion. Since it is arranged in a narrow groove provided on the surface of the member, the starting point of the loop engaging element part of the locking connecting member of the covering material and the starting point part of the hook engaging element part on the cushion molded body side Accurate alignment is extremely difficult, and if it is mounted in a distorted or misaligned position, it will be unsightly due to the formation of wrinkles on the coating material, and the engagement of both engagement elements will be disengaged. Therefore, it was necessary to peel off the covering material and redo the work of covering the covering material again.
- a plate-like core material is provided along the loop engaging element sewn on the back surface of the covering material, while the cushion member is provided.
- a technology is disclosed in which a slit groove for inserting the core material is provided at the groove bottom, and when the cushion member is covered with a covering material, the slit core is first inserted from the plate-shaped core material and positioned thereby. (Patent Document 4).
- the present invention solves the above-mentioned problems, facilitates accurate positioning of the cushion member in the groove, and can easily cope with a complicated curved groove, and the locking connection member of the flexible and long covering material and the work It aims at providing the manufacturing method of the covering cushion molded object in which efficiency was improved, and a covering cushion molded object.
- the present inventors can position the starting point of the loop engaging element part and the starting point of the hook engaging element part on the cushion molded body side at least on one end part in the length direction.
- the present invention has been completed by finding that the above-mentioned object is achieved by a locking connecting member of a covering material having an appropriate positioning member.
- the present invention (1) A locking connecting member for locking the covering material to the cushion molded body, wherein the locking connecting member is a first main surface and a second main surface facing the first main surface.
- a loop engagement element portion that is erected along at least a part of the second main surface along the length direction of the belt-like base fabric, and the loop engagement element portion
- the loop engagement element portion includes a main portion having a region serving as a connecting portion extending in the length direction on both sides, and a positioning member disposed on at least one length direction end portion of the main portion.
- the connecting member is formed so as to be opposed to each other so as to form a cylindrical part with the first main surface facing inward, and the positioning member is the loop engaging element.
- the resin layer A and / or resin layer B is further provided on the first main surface, and the resin layer A is formed discontinuously at the center along the length direction of the belt-like base fabric, The resin layer B is formed continuously or discontinuously at both ends of the strip base fabric along the length direction of the strip base fabric, and between the resin layer A and the resin layers B at both ends. Has a region where a resin layer is not formed, and the resin layer B at both ends is opposed to each other so that the first main surface is on the inner side to form a covering material connecting portion.
- Locking connecting member of the covering material (3) The locking connecting member of the covering material according to (1) or (2), wherein the positioning member has a protruding portion that can be inserted into a positioning recess provided in the cushion molded body, (4) A flexible rod-shaped core material is inserted into the cylindrical portion, and is fitted into a positioning recess disposed in the cushion molded body at at least one terminal portion of the flexible rod-shaped core material.
- Locking connecting member, (6) A portion where the hook engaging element portion of the cushion molded body is embedded by sewing the covering material on the connecting portion of the locking connecting member of the covering material according to any one of (1) to (5).
- the hook engaging element portion and the loop engaging element portion are engaged by abutting or engaging the positioning member of the locking connecting member and the positioning concave portion of the groove bottom portion of the cushion molded body.
- the starting point of the loop engaging element portion of the locking connecting member and the starting point of the hook engaging element portion of the cushion molded body are aligned with each other, and the locking connecting member is moved in the longitudinal direction from the starting point of the loop engaging element portion.
- the manufacturing method of the covering cushion molded body characterized by including the step of fixing the covering material to the cushion molded body by covering the hook engaging element portion at the bottom of the groove in order (6) Obtained by the production method Covering cushion molded and symptoms, I will provide a.
- FIG. 2A is a cross-sectional view taken along line XX in FIG. 1 and (B) X′-X ′.
- A It is a figure which shows an example of the usage condition of the main part of the latching connection member of this invention, and (B) the other example of a usage condition.
- FIG. 5 is a cross-sectional view taken along line VV in FIG. 4.
- FIG. 1 It is the isometric view schematic which shows the other example of the main part of the latching connection member with a resin layer of this invention. It is the isometric view schematic which shows the other example of the main part of the latching connection member with a resin layer of this invention. It is a figure which shows an example of the usage condition of the main-body part of the latching connection member with a resin layer of this invention. It is a figure which shows the other example of the usage condition of the main-body part of the latching connection member with a resin layer of this invention. It is the isometric view schematic which shows an example of the method of fixing the coating
- FIG. 11 is a sectional view taken along line YY in FIG. 10.
- FIG. 15 is a sectional view taken along line ZZ in FIG. 14. It is a perspective schematic diagram which shows the coating
- FIG. 17 is a perspective schematic diagram illustrating a state in which the locking connection member of FIG. 16 is engaged in a cushion molded body groove.
- FIG. 1 It is a perspective schematic diagram showing an example of a positioning member having a flat plate fixing part. It is a schematic perspective view which shows the other example of the positioning member which has a flat plate adhering part. It is a schematic perspective view showing an example in which the positioning member is engaged with the cushion molded body side. It is a schematic perspective view showing an example in which the positioning member is configured to be fitted to the cushion molded body side.
- SYMBOLS 1 Main part of latching connection member 2, 12 Base cloth 3 1st main surface 4 2nd main surface 5, 13 Loop engagement element part 7 Connection part 8 Adhering part of 1st main surface 9 Cylindrical part Cavity 10R Flexible rod-shaped core material 10W Linear core material 11 Main portion 14 of locking connecting member having resin layer Resin layer A 15, 16 Resin layer B 17, 18 Connecting part (adhering part) 20 Cap-shaped positioning member 21 Cushion molded body 22 Groove bottom 23 Hook engagement element portion 24 Open hole Sl Start point portion Sf of loop engagement element portion Start point portions 30, 40, 50, 80 of hook engagement element portion Positioning member 60 Wearing type positioning member 70 Fitting type positioning member
- the base fabric 2 has a first main surface 3 and a second main surface 4 with a full width W, and the second main surface.
- a loop engaging element portion 5 is erected on the side 4 with a width w, and the both sides of the loop engaging element portion 5 are covered with a covering material by sewing or the like as shown in FIG. It is set as the width dimension which functions as the connection part 7 for connecting.
- the loop is formed over almost the entire width of the base fabric 2 ′ except for the ears at both ends on the second main surface 4 ′ side.
- the engaging element portion 5 ′ is erected.
- the loop engaging element portion is erected over the entire width without forming the ear portion at both side end portions of the base fabric. It may be a thing.
- the main part of such a locking connection member can be obtained by cutting a wide one provided with loop engaging elements upright to a predetermined width. As shown in FIG.
- the main portion 1 of the belt-like locking connecting member is folded in half so that the first main surface side is inward, and is sewn, heat-sealed, or bonded at a predetermined portion. 1 is formed between the main surfaces.
- a hollow portion 10 is provided on the inner periphery of the cylindrical portion 9.
- the adhering portion 8 may be formed by a sewn portion to the covering material.
- a cylinder is formed by only the loop engaging element portion 5, a flexible rod-shaped core material 10R is inserted into the inner periphery thereof, and a flexible rod-shaped core is further formed as necessary.
- the outer periphery of the material and the first main surface can be fixed with an adhesive or the like.
- the flexible rod-shaped core material 10R is exemplified as an outer diameter satisfying the inner circumference of the cylinder, but the function of the core material, that is, the loop of the main part of the locking connecting member A thin outer diameter may be used as long as it has a function of reliably pulling the engaging element portion toward the cushion molded body.
- the base fabric of the loop engaging element used in the present invention may be either knitted fabric or woven fabric.
- the locking connection member of the knitted fabric base fabric is preferable from the viewpoint of excellent stretchability, and a loop engagement element portion in which the loop engagement element is formed on the base fabric by Russell knitting is particularly preferable.
- Locking and connecting members made of woven fabric obtained by weaving warps, wefts and loop yarns are low in flexibility because the ground fabric of the base fabric is strong, and fit into complex curved and curved grooves. There is a limit.
- the locking connecting member having the Russell knitted loop engaging element has a yarn and knitting structure that is easily deformed, and has a structure with a sparse ground structure and a large gap between the knitting yarns, so that the deformation is easy. In the following, the description will be focused on the case where the loop engaging element is knitted on the knitted fabric base fabric.
- the fiber used for the loop engagement element portion may be a fiber used for a normal fabric, and a polyamide fiber, a polyester fiber, a polyolefin fiber, or the like is used. Moreover, a multifilament is preferable and a monofilament may be mixed with the multifilament.
- the multifilament constituting the loop is preferably 5 to 50 filaments, more preferably 10 to 40 filaments, and even more preferably 15 to 35 filaments are arranged in a non-twisted straight state to form a multifilament. So-called raw silk is preferred.
- the thickness of the multifilament is preferably 100 to 250 dtex.
- the multifilament yarn constituting the fabric of the loop engaging element portion a false twisted yarn having 200 to 400 dtex and 50 to 150 filaments or a twisted yarn thereof is preferable.
- the loop engaging element portion is manufactured by a known method using a known knitted fabric manufacturing apparatus.
- the loop engagement element portion includes a base fabric and a loop engagement element portion formed on one surface.
- the width of the loop engaging element portion (the width of the base fabric) is appropriately selected according to the size of the cushion member and the width and depth of the groove, but is usually 10 to 80 mm.
- the height and standing density of the loop engaging element part are determined according to the required engaging force with the hook engaging element part, but the height is 1 to 5 mm, and the standing density (in the case of multifilament)
- the number of loops made of multifilaments is counted as one), and is preferably 20 to 80 / cm 2 .
- the loop engaging element portion may be formed on one entire surface of the base fabric.
- not all of the loop engaging element portions existing on the entire surface are involved in the engagement with the hook engaging element portion provided on the bottom surface of the groove portion of the cushion member. More preferably, it is formed so as to be effectively engaged with the hook engaging element portion provided on the bottom surface of the groove portion of the cushion member only in the central portion along the length direction.
- the stretchability of the loop engagement element portion was evaluated by the stretch rate and the stretch elastic modulus.
- the stretch rate is preferably 3% or more in the longitudinal direction (length direction), more preferably 4 to 15%, and the stretch elastic modulus is preferably 45% or more.
- the stretch rate and stretch elastic modulus of the loop engaging element were determined as follows. Tx 2.5g initial load (2.5g / cm) is applied to the free end of the Tcm width loop engaging element part held vertically, and the length after 30 seconds (original length (a)) is measured. did. Next, a load of T ⁇ 250 g (250 g / cm) was applied, and the length after 30 seconds (length under load (b)) was measured. After removing the load and leaving it to stand for 2 minutes, an initial load was applied again, and the length after 30 seconds (the length after the load history (c)) was measured.
- the expansion / contraction rate is a value obtained by dividing the deformation amount under load by the original length, that is, [100 ⁇ (ba) / a]
- the elastic modulus is a value obtained by dividing the recovery amount by the deformation amount under load, that is, [100 ⁇ (bc) / (ba)].
- a loop engagement element portion in which the base fabric and the loop engagement element are formed by Russell knitting.
- the raschel knitting loop engaging element portion is manufactured by a known method using a known raschel knitting apparatus.
- a resin layer can be provided on the surface (first main surface) opposite to the surface (second main surface) having the loop engaging element portion.
- the resin layer is formed at the central portion and / or both end portions along the length direction of the loop engaging element portion.
- the resin layer (resin layer A) formed in the center is discontinuous in the length direction.
- the resin layers (resin layer B) formed on both ends may be continuous or discontinuous in the length direction, but are preferably continuous.
- Resin layer A has an effect of reinforcing the loop engaging element portion from the back surface. Reinforcement by the resin layer A is preferable because the loop engagement element portion can be easily pressed against the hook engagement element portion provided on the bottom surface of the groove portion of the cushion member, and a stronger engagement can be obtained.
- the locking connecting member particularly the loop engaging element portion forming portion of the locking connecting member, depends on the shape of the groove opening. It is necessary to transform freely. Therefore, the resin layer A is formed discontinuously in the length direction. When discontinuous, the portion where the resin layer A is formed (having the loop engaging element portion on the back surface) is easily deformed, and the operation of pushing the locking connecting member into the complicatedly shaped groove portion is facilitated.
- the two resin layers B form a covering material connecting portion for attaching to the covering material when the locking connecting member is used. Further, when the locking connection member is pushed into the groove portion of the cushion member, there is an effect of holding the locking connection member linearly or curvedly according to the shape of the groove portion. Thereby, the fixing operation of the covering material is simplified, and the covering material can be accurately fixed along the groove.
- the resin for forming the resin layers A and B is flexible and has an affinity for the fibers forming the loop engagement element portion.
- Synthetic rubber, polyurethane, soft polyester, soft polyamide, soft polyolefin resin, acrylic resin, etc. can be used for polyester fiber and polyamide fiber.
- the resin layers A and B are partially penetrated into the base fabric of the loop engagement element portion by a known method such as a coating method (hot melt method, squeezing method, etc.), an adhesion method, or a fusion method. In this state, it is formed by applying 50 to 300 g / m 2 .
- the widths of the resin layers A and B are appropriately determined depending on the width of the locking connecting member, but preferably 3 to 30 mm.
- the thickness is preferably 0.1 to 4 mm.
- the width and thickness of the resin layer A may be the same as or different from those of the resin layer B, and the width and thickness of the two resin layers B may be the same or different.
- the resin layers A and B may be discontinuous or continuous in the width direction of the locking connection member.
- the long loop engaging element portion has a certain degree of deformability sufficient to easily and accurately fix the covering material.
- the flexibility of the resin layers A and B as well as the flexibility of the base fabric of the loop engagement element portion is appropriate.
- the bending resistance of the base fabric where the resin layer is not formed is preferably 20 g or less, more preferably 10 to 20 g, and even more preferably 15 to 18 g.
- the bending resistance of the portion where the resin layer A or B is formed is preferably 25 g or more, more preferably 25 to 80 g, and further preferably 30 to 60 g. All of the above numerical values are values in the width direction of the belt-like base fabric. Within the above range, the locking connecting member is not too soft and easy to handle, and the deformability is moderate, and the locking connecting member attached to the covering material can be deformed along the groove. Easy.
- the bending resistance was measured as follows using a bending resistance tester “HOM-200” manufactured by Daiei Kagaku Seisakusho Co., Ltd. A sample in which a resin layer having a width of 40 mm and a length of 200 mm was formed or a sample (base fabric) that was not formed was placed on a slit (width 20 mm) of a bending resistance tester so that the length direction was perpendicular to the slit. . Next, a load was applied to the sample in the downward direction with a pressure plate having a width of 2 mm. The load when the sample was deformed 10 mm downward from the slit surface was measured and defined as a bending resistance force. The measurement was pressed from the first surface side.
- HOM-200 bending resistance tester
- FIG. 4 is a schematic perspective view showing an example of the main portion 11 of the locking connection member of the present invention.
- FIG. 5 is a sectional view taken along line VV in FIG.
- a loop engagement element portion 13 is provided upright along the length direction of the locking connection member 11 at the center portion of the second main surface of the base fabric 12.
- a resin layer 14 (resin layer A) is formed discontinuously in the length direction of the locking connection member 11 at the center portion of the first main surface of the base fabric 12. The length and shape of the continuous part and the discontinuous part of the resin layer 14 are appropriately determined according to the required ease of deformation.
- the resin layer 14 is formed so as to reinforce the loop engagement element portion 13 from the opposite surface, but the widths of the resin layer A and the loop engagement element portion 13 may be the same or different.
- Resin layers 15 and 16 are formed at both ends along the length direction of the locking connecting member 11. You may provide the ear
- a region where no resin layer is formed exists between the resin layer 14 and the resin layers 15 and 16.
- the width of the region is preferably 2 to 10 mm. The presence of the region facilitates the operation of raising the both end portions of the locking connecting member upward to form the covering material connecting portion in use. Moreover, moderate softness
- only the resin layer 14 may be formed (FIG. 6), or only the resin layers 15 and 16 may be formed (FIG. 7).
- FIG. 8 and 9 are diagrams showing examples of usage of the locking connection member of the present invention.
- the resin layers 15 and 16 at both ends are raised upward so that the first main surface is inside, and the resin layer 15 and the resin layer 16 are opposed to each other.
- the covering material connecting portion 17 is formed.
- the ends of two coating materials (not shown) are inserted into the gap between the resin layer 15 and the resin layer 16, and the coating material and the resin layers 15 and 16 are fixed by sewing, an adhesive, or the like.
- the locking connecting member is attached to the covering material.
- FIG. 8 are diagrams showing examples of usage of the locking connection member of the present invention.
- the resin layer 15 and the resin layer 16 are opposed to each other, closely attached, two covering materials are fixed to the outside of the two resin layers, and the locking connecting member is attached to the covering material. it can.
- the resin layer 15 and the resin layer 16 may be integrated by applying a resin to the covering material connecting portion 17 of FIG. 8 and 9, the resin layer 14 is substantially flat, but slightly bends or protrudes depending on the shape of the hook engaging element portion (hook hook fastener) formed at the bottom of the groove portion of the cushion member. May be.
- the side portion 12 rising from the resin layer 14 is preferably smooth and has no loop engaging element portion.
- the positioning member constituting the present invention.
- the positioning member is fixed to the distal end side of the starting point portion of the loop engaging element portion at at least one lengthwise end portion of the locking connecting member.
- the positioning member is provided so as to satisfy a positional relationship that allows accurate alignment with the starting point portion of the hook engaging element portion on the cushion molded body side.
- Positioning target points on the side of the cushion molded body include a position at a predetermined distance from the end of the groove and an extension to the end of the hook engaging element section when the hook engaging element section is molded into the cushion molded body. It may be a certain mark or the like. However, since the latching connection member of the present application is used for an automobile seat or the like, a positioning recess is provided on the cushion molded body side, and the positioning member on the locking coupling member side is a protrusion that can be inserted into the positioning recess. Is preferable because it matches the pressing direction when the covering material is attached.
- FIG. 10 is a schematic view showing an example of a method of fixing the covering material C to which the locking connecting member 1b of the present invention is attached to the groove portion 22 of the cushion molded body 21.
- FIG. 11 As shown in a sectional view in FIG. 11, a hook engaging element portion 23 is erected on the bottom of the groove portion of the cushion molded body 21, and an opening 24 is provided at a predetermined position from the starting point Sf.
- FIG. 10 is a schematic view showing an example of a method of fixing the covering material C to which the locking connecting member 1b of the present invention is attached to the groove portion 22 of the cushion molded body 21.
- the locking connecting member 1b is obtained by attaching a flexible rod-shaped core material 10R to a cylindrical portion on the inner periphery of the loop engaging element portion 5, A cap-shaped positioning member 20 is attached at a predetermined position from the starting point S1 of the hook engaging element portion.
- the cap-shaped positioning member 20 has a bulged protrusion 201 at the tip, and is inserted into an opening 24 formed in the cushion molded body 21.
- the bulged protrusion 201 it is possible to increase the frictional force with the opening 24 to reduce floating and vibration, thereby achieving accurate positioning. Further, when the positioning member 20 is inserted into the opening 24 of the cushion molded body, a feeling of wearing with a protrusion is obtained.
- the cap-shaped positioning member 20 shown in the perspective view of FIG. 12A is made of an injection-molded product of thermoplastic resin, has a bulge-shaped protrusion 201 on the front end side, and is flexible on the rear end side.
- the rod-shaped core member 10 ⁇ / b> R and the outer peripheral base fabric and / or the loop engagement element portion (“main portion of the locking connection member”) are sandwiched 202.
- the sandwiching portion 202 includes two semi-cylindrical sandwiching pieces 204 a and 204 b via a hinge 203.
- the pinching piece 204a is provided with two small protrusions 205 and a hook-like protrusion 207, and the opposite pinching piece 204b is engaged with two holes 206 and the hook-like protrusions 207 that engage with the small protrusion 205.
- a square hole-like engagement portion 208 that can be worn is provided.
- the hook-like protrusion 207 and the square hole-shaped engaging portion 208 can be inserted by bending the tip of the hook-shaped protrusion 207 into the square hole-shaped engaging portion 208 by bending toward the center axis side of the sandwiched portion. After the insertion is completed, the hook-like protrusion 207 is restored to the outside, and the hook part of the hook-like protrusion 207 and the square hole part of the square hole-like engaging part 208 are engaged with each other. There is no risk that the positioning member 20 will fall off the main portion of the locking connecting member. In addition, in order to make the fixation between the inner periphery of the sandwiching piece and the main portion of the locking connecting member more complete, it may be further fixed by an adhesive, heat fusion, or the like, if necessary.
- the cap-shaped positioning member may be configured to be able to fit the joint with the main portion of the locking connecting member.
- the fitting-type positioning member 20b shown as a perspective view in FIG. 13 has a bulge-shaped protrusion 211 on the front end side, and a locking connecting member main body can be fitted on the rear end side. It has a fitting part 212.
- the fitting part 212 has an inner diameter adapted to the outer diameter of the main part of the locking connecting member.
- the fitting part 212 is not a complete circular tube, but the inner diameter when inserting the main part of the locking connecting member by providing a slit part in part. The diameter may be increased.
- the inlet portion may have a large inner diameter so that it can be easily inserted and fitted on the back side.
- the flexible rod-shaped core material 10R used for the locking connection member 1b can be a resin body made of a flexible resin or a foamed resin, or a hollow pipe shape made of a flexible resin.
- a flexible resin various soft polyolefin resins, polyester resins, elastomers, and the like can be used.
- foamed resin foamed polyethylene, foamed polystyrene, foamed polyurethane, or the like can be used.
- a metal hollow pipe, a wire such as a steel wire, or the like can be used as necessary.
- a wire such as a steel wire or a synthetic resinous linear material capable of plastic deformation
- the core material is extended and bent toward the opening 24 of the groove portion 22 of the cushion molded body 21.
- the loop may be used as a positioning member by bending the tip portion to form a loop.
- the locking connecting member shown in FIG. 16 is overlapped as the main part 1 with the upper side of the first main surfaces folded in half as a connecting part and a fixing part, and is directly sewn to the two covering materials C. Is shown.
- a steel wire can be used as the core material 10W, and the core material 10W is smaller in diameter than the inner peripheral length (apparent inner diameter) of the hollow portion 10, but the core It has a function as a material.
- a core material / positioning member is prepared in which the core material 10W can be used as a positioning member 80 by forming a loop in which both ends are bent substantially L-shaped on the cushion molded body side and the distal end portion thereof is curved. .
- the core member 10W is inserted into the hollow portion 10 to form a locking connection member to which a covering material as shown in FIG. 16 is fixed.
- the locking connecting member is configured to engage the positioning hole 80 of the cushion molded body with the loop-shaped positioning member 80 extending to the core material 10 ⁇ / b> W in the groove portion of the cushion molded body 21.
- the starting point portion Sl of the loop engaging element portion and the starting point portion Sl of the hook engaging element portion are made to coincide with each other, and then the loop engaging element portion and the hook engaging element portion are engaged.
- an adhesive or the like is used at the contact portion between the core material 10W and the inner periphery of the cavity portion 10. If it is fixed, the distance between the positioning member 80 and the starting point portion of the loop engaging element portion becomes constant, so that the alignment with the starting point portion of the hook engaging element portion becomes more accurate, which is desirable.
- the projection 201 of the positioning member is engaged with the opening 24 on the cushion molded body side, and the loop engaging element portion on the locking connection member side is engaged.
- the hook at the bottom of the groove is moved in the longitudinal direction from the start point S1 side of the loop engagement element part so that the start point S1 and the start point part Sf of the hook engagement element part on the cushion molded body side coincide with each other.
- the covering material examples include knitted fabrics, nonwoven fabrics of natural fibers or synthetic fibers, foamed synthetic resin sheets such as foamed polyethylene, foamed polystyrene, and foamed polyurethane, natural or artificial leather sheets, and laminates thereof.
- foamed synthetic resin sheets such as foamed polyethylene, foamed polystyrene, and foamed polyurethane, natural or artificial leather sheets, and laminates thereof.
- urethane foam, synthetic fiber laminate, natural fiber felt or the like is used as the cushion molded body.
- FIG. 14 shows a locking connecting member with a positioning member in which the flat plate portion of the positioning member 30 is sandwiched and fixed between the connecting portion 17 with the resin layers 15 and 16 of the locking base member 11 of the locking connecting member 11 having a resin layer.
- 11 shows a state before being attached to the cushion molded body 21.
- the positioning member 30 includes a protrusion 301 that engages with the opening 24 formed in the bottom of the groove 22 of the cushion molded body 21 and a flat plate portion 302 on the rear end side. have.
- a synthetic resin is selected so as to have a thickness and physical properties that can be sewn by a sewing machine. It is said that the thickness.
- the protrusion 301 and the flat plate portion 302 on the rear end side are integrated by injection molding or the like, separate members may be fixed to each other.
- the protrusion 301 of the positioning member is engaged with the opening 24 on the cushion molded body side, and the loop engaging element portion 13 on the locking connection member side.
- the engaging connecting member is moved in the longitudinal direction from the starting point S1 side of the loop engaging element part 13 so that the starting point S1 and the starting point part Sf of the hook engaging element part 23 on the cushion molded body side coincide with each other.
- FIG. 18 is a perspective view showing a state in which the opening 24 is opposed to the groove bottom.
- FIG. 19A shows a state before the positioning member 50 having the flat plate portion 302 having the same width is attached to the upper portion of the cylindrical protrusion 306, and
- FIG. 19B shows a state after the attachment. It is a perspective view.
- the base fabric 12 or 2 that does not have the loop engaging element portion 13 (5) is provided with the loop engaging element portion 13 (5) being erected intermittently in the length direction or once looped. It is preferable that the element is not engaged with the hook engaging element part by removing the loop of the element part or fixing resin or the like. Further, the fixing (fixing) of the flat plate portion 302 to the base cloth 12 or 2 is not necessarily performed by sandwiching the flat plate portion 302 between the two base cloths, and the flat plate portion 302 is overlapped on the two-layer base cloth. May be fixed. For fixing, sewing with a sewing machine is practical.
- a female member can be attached to the positioning recess provided in the cushion molded body, and can be configured to be fitted or engaged with the protrusion (male part) of the positioning member.
- FIG. 20 is a perspective view showing a positioning member 60 comprising a combination of a cylindrical clip 303 as a positioning member and a half-shaped receiving member 241 fixed to the bottom of the groove.
- 21 is a perspective view showing a positioning member 70 composed of a combination of an arrowhead-shaped projection 304 and an annular member 242 having an inner diameter capable of receiving the outer diameter of the arrowhead-shaped projection 304 fixed to the groove bottom. Yes. If it is a combination that can be fitted or engaged in this way, it is easy to confirm that the positioning of the loop engagement element part side and the hook engagement element part side is accurately performed by touch and sound, It is possible to achieve a more accurate match between the starting points of both sides and an increase in the efficiency of the covering material mounting operation.
- the method for producing the coated cushion molded body of the present invention sews the coating material on the connecting portion of the locking connecting member of the covering material.
- the locking connection member after contacting or engaging the opening, engagement or fitting member provided at a predetermined position from the starting point of the hook engagement element portion, and the positioning member of the engagement connection member
- the starting point of the loop engaging element part and the starting point of the hook engaging element part of the cushion molded body are aligned with each other, and the locking connecting member is moved in the longitudinal direction from the starting point part of the loop engaging element part.
- the manufacturing method includes a step of engaging the hook engaging element portion and the loop engaging element portion by pressing against the hook engaging element portion, and fixing and covering the covering material to the cushion molded body.
- a release paper or the like is interposed on the loop engaging element part side, It is also possible to fix the covering material to the cushion molded body by pushing the locking connecting member toward the groove bottom while removing the release paper.
- the present invention also provides a coated cushion molded body obtained by the above production method.
- the locking connecting member of the covering material of the present invention it is easy to accurately align the cushion member with the groove, and the engagement of the flexible and long covering material that can easily correspond to the complicated curved groove.
- a stop connecting member can be provided.
- the method for manufacturing a coated cushion molded body according to the present invention is less likely to cause rework due to misalignment between the hook engaging element portion on the cushion molded body side and the loop engaging element portion on the locking connection member side.
- a construction method with improved efficiency can be provided.
- the coated cushion molded body of the present invention it is possible to provide a beautiful coated cushion molded body that is free from slack and wrinkles in the coating material.
- Example 1 Manufacture of main part of locking connecting member> The main part of the locking connecting member in which the base yarn and the loop engaging element part were formed by Russell knitting using the following raw yarn was used.
- Raw yarn Crunken yarn PET processed yarn 330T / 96F
- Weft insertion thread PET processed thread 330T / 96F // 2 Loop yarn: PET raw yarn 167T / 30F
- Knitting structure Russell knitting 16in gauge Vertical density: 32 courses / in Loop density: 160 pieces / in 2 Loop height: 2 mm Tape width (W): 40 mm Center loop width (w): 10 mm Weight: 9g / m
- Elasticity Elasticity 4%, Elastic elasticity: 48%
- the main portion of the locking connecting member has a shape shown in a perspective view in FIG. 1 and a cross-sectional view in FIG. 2, and a loop height of 10 mm in width at the center of the second main surface of the base fabric 2 having a width of 40 mm.
- a 2 mm loop engaging element portion is formed. The both ends in the width direction are overlapped so that the first main surface of the belt-like base fabric as the locking connecting member main portion is opposed to each other, and the outer periphery of the cylindrical portion is 10 mm in width of the loop engaging element portion on the second main surface.
- the positioning member As a flexible rod-shaped core material made of low-density polyethylene and having a diameter of 3.5 mm on the first main surface side, the positioning member is not attached in the cross-sectional structure shown in FIG. A locking connecting member was produced.
- the outer periphery of the flexible rod-shaped core material and the first main surface were fixed with a hot melt adhesive or the like.
- a connecting portion 6 and fixing portion 7 hereinafter referred to as a “covering material connecting portion” with a covering material of about 11 mm was raised above the fixing portion 8 between the main surfaces.
- the positioning member 20 was attached to the main part of the locking connecting member that was sewn and fixed with two covering materials C (polyester fiber circular knitted fabric manufactured by Kuraray Co., Ltd.).
- the positioning member 20 is shown in FIG. 12, and the configuration thereof has already been described.
- the sandwiched portion has an inner diameter of 5.5 mm and a length of 24 mm.
- the apparent outer diameter including the flexible rod-shaped core material and the loop engaging element portion is set to about 5.5 mm, and is stored in the sandwiched portion 202.
- the positioning pieces 20 were fixed to the tips of the locking connecting members by engaging the pieces 204a and 204b.
- the positioning member 20 is fixed so that the distance from the starting point S1 of the loop engaging element portion 5 to the center of the protruding portion 201 is 35 mm.
- the distal end portion of the positioning member 20 is inserted into the opening 24 of the urethane foam cushion molded body having the curved groove portion 22 and the opening 24 and the hook engaging element portion 23 standing on the bottom of the groove portion. Insert and align the starting point Sf of the hook engaging element part 23 with the starting point S1 of the loop engaging element part 5, and then follow the locking connecting member and push it into the groove to fix the covering material.
- An automobile seat was produced. Since the starting point portion Sf of the hook engaging element portion 23 and the starting point portion Sl of the loop engaging element portion 13 are made to coincide with each other by the positioning member, there is no problem with the covering material due to the deviation of the mutual starting point portions, and the covering is smoothly performed. The material could be fixed.
- Example 2 Manufacture of the main part of the locking connecting member with a resin layer>
- a discontinuous resin layer A was formed using a polyamide-based resin ("Micromelt 6211" manufactured by Henkel Co., Ltd.) along the longitudinal direction in the center (width 10 mm, thickness 120 ⁇ m, 10 mm / 5 mm pitch (coating) Part / uncoated part)).
- a continuous resin layer B is formed at both ends of the belt-like loop engaging element portion using the polyamide-based resin (width 10 mm, thickness 150 ⁇ m), and the locking connecting member main portion having the same configuration as in FIG. Manufactured.
- the bending resistance force of the resin layer forming portion of the main portion of the obtained locking connection member was 60 g, and the bending resistance force of the non-formed portion was 18 g.
- the resin layer B at both ends of the main portion of the locking connecting member was raised up so that the first main surface was inside, and facing each other as shown in FIG.
- the positioning member 30 shown in FIG. 14 and FIG. 15 is inserted into the end portion of the two covering materials (polyester fiber circular knitted fabric made by Kuraray Co., Ltd.) and the length direction end portion in the covering material connecting portion. Then, the positioning member 30 and the covering material C were attached to the main portion of the locking connecting member by sewing.
- the positioning member 30 is made of low-density polyethylene and has a flat plate portion with a thickness of 1.0 mm, an outer diameter of the protruding portion 301 of 5 mm, and a swelling head with a diameter of 6.5 mm at the tip.
- the distance from the starting point S1 of the loop engaging element part 13 to the center of the protrusion 301 was set to 7.5 mm.
- the distal end portion of the positioning member 30 is provided in the opening 24 of the urethane foam cushion molded body having the curved groove portion 22 and the opening 24 and the hook engaging element portion 23 standing on the bottom of the groove portion. Insert and align the starting point Sf of the hook engaging element part 23 with the starting point S1 of the loop engaging element part 13, and then follow the locking connecting member and push it into the groove to fix the covering material. An automobile seat was produced.
- the positioning member Since the starting point portion Sf of the hook engaging element portion 23 and the starting point portion Sl of the loop engaging element portion 13 are made to coincide with each other by the positioning member, there is no problem with the covering material due to the deviation of the mutual starting point portions, and the covering is smoothly performed.
- the material could be fixed.
- the locking connecting member can be easily deformed according to the curved shape, and can be pushed into the groove without resistance, and the loop engaging element portion of the locking connecting member and the hook engaging element portion at the bottom of the groove portion are provided. It was possible to engage firmly. When sitting on the obtained automobile seat, the seating comfort was good and the covering material did not loosen or slip even after sitting for a long time.
- Example 1 In Example 1, except that the positioning member 20 was not attached to the locking connection member, the covering material was fixed to the cushion molded body in the same manner as in Example 1, but the starting point Sf of the hook engaging element part 23 was fixed. And the starting point S1 of the loop engaging element portion 13 do not coincide with each other, so that the covering material is twisted and the fixing work needs to be repeated.
- the locking connecting member of the covering material according to the present invention is a locking connecting member that is easy to accurately align with the groove of the cushion member. It can be used as a locking connection member for fixing the material. Further, the method for producing a coated cushion molded body according to the present invention does not cause a deviation between the cushion molded body and the covering material, and therefore can be effectively used for the production of an automobile seat as a production method capable of improving work efficiency. Furthermore, the coated cushion molded body of the present invention can be used for an automobile seat or the like as a beautiful coated cushion molded body free from wrinkles and slack of the coating material.
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Abstract
Description
例えば、断面円形状の長尺可撓性体の周面上にフック係合素子部群を形成したモールドイン成形された係止連結部材が開示されている(特許文献1)。該モールドイン成形された係止連結部材は、通常クッション部材の表面に設けられた細い溝の底部に一体成形される。被覆材の裏面に該係止連結部材の形状に対応したループ係合素子部を装着し、該溝内にループ係合素子部を押入して両係合素子部を係合させることにより被覆材がクッション部材に固定される。
しかし、上記の特許文献1~3のいずれの被覆材の係止連結部材を用いた場合においても、被覆材を取付ける工程においては、モールドイン成形されたフック係止係合素子部が、通常クッション部材の表面に設けられた細い溝の中に配置されているため、被覆材の係止連結部材のループ係合素子部の始点部と、クッション成形体側のフック係合素子部の始点部との正確な位置合せすることが極めて難しく、歪んで取付けた場合や、ずれた位置に取付けた場合には、被覆材に皺が形成されたりして見苦しく、双方の係合素子部の係合を解いて被覆材を剥がし、再度被覆材を被せる作業をやり直す必要があった。
しかしながら、この特許文献4に記載の技術では、クッション部材が複雑な三次元曲面を有するものである場合(高級車ほど人体によりフィットするように複雑な三次元曲面を有している)には、板状芯材を三次元曲面に従って切断したり曲げたりすることが必要であり、さらに板状芯材が座席面や背もたれ面に存在する場合には、着席した場合に剛直な板状芯材により違和感を与えることから、使用できる場所が極めて限られており、さらに、重い板状芯材が存在することにより車体重量が増加し、かつコストも増加するという問題点を有している。
また、板状芯材を設けて位置決めを行なう技術では、複雑な曲線形状への対応がし難い等の問題があった。
本発明は上記問題を解決し、クッション部材の溝への正確な位置合せが容易であり、複雑な曲線形状の溝に容易に対応できる、柔軟で長尺な被覆材の係止連結部材及び作業能率が改善された被覆クッション成形体の製造方法、及び被覆クッション成形体を提供することを目的とする。
(1)被覆材をクッション成形体に係止するための係止連結部材であって、該係止連結部材は、第1の主表面及び該第1の主表面に対向する第2の主表面を有する帯状基布であって、該第2の主表面の少なくとも一部に該帯状基布の長さ方向に沿って立設されたループ係合素子部、及び、該ループ係合素子部の両側に長さ方向に延在する連結部となる領域を有する主体部と該主体部の少なくとも一方の長さ方向端末部に配設された位置決め部材とからなり、該ループ係合素子部の両側の該連結部となる領域を該第1の主表面を内側にして筒状部が形成されるようにして対向させて被覆材連結部を形成しており、該位置決め部材は該ループ係合素子部の始点部が該クッション成形体の溝部に配設されたフック係合素子部の始点部に係合するよう配設されていることを特徴とする被覆材の係止連結部材、
(2)前記第1の主表面上にさらに樹脂層A及び/又は樹脂層Bを有し、該樹脂層Aは該帯状基布の長さ方向に沿って中央部に不連続に形成され、該樹脂層Bは該帯状基布の長さ方向に沿って該帯状基布の両端部に連続または不連続に形成され、かつ、該樹脂層Aと該両端部の樹脂層Bとの間には樹脂層が形成されていない領域を有し、該両端部の樹脂層Bが第1の主表面が内側になるように対向されて被覆材連結部を形成している前記(1)に記載の被覆材の係止連結部材、
(3)前記位置決め部材が、該クッション成形体に設けられた位置決め用凹部に挿入可能な突起状部を有する前記(1)又は(2)に記載の被覆材の係止連結部材、
(4)前記筒状部の内部に可撓性棒状芯材を挿入し、該可撓性棒状芯材の少なくとも一方の端末部に、クッション成形体に配設された位置決め用凹部に嵌着する突起部を有する位置決め部材を有する前記(1)~(3)のいずれかに記載の被覆材の係止連結部材、
(5)前記位置決め部材が、クッション成形体に設けられた位置決め用雌部に嵌合又は係着可能な突起状雄部を有する前記(1)~(4)のいずれかに記載の被覆材の係止連結部材、
(6)前記(1)~(5)のいずれかに記載の被覆材の係止連結部材の連結部に被覆材を縫着し、クッション成形体のフック係合素子部が埋設された部位を含む溝部において、該係止連結部材の位置決め部材とクッション成形体の溝部底部の位置決め用凹部とを当接又は係着させて、フック係合素子部とループ係合素子部とを係合させて、該係止連結部材のループ係合素子部の始点部とクッション成形体のフック係合素子部の始点部とを一致させ、該ループ係合素子部の始点部から係止連結部材を長手方向に順じ溝底部のフック係合素子部に押付けることによって、被覆材をクッション成形体に固定させて被覆する工程を含むことを特徴とする被覆クッション成形体の製造方法、及び
(7)前記(6)に記載の製造方法により得られたことを特徴とする被覆クッション成形体、
を提供する。
2、12 基布
3 第1の主表面
4 第2の主表面
5、13 ループ係合素子部
7 連結部
8 第1の主表面の固着部
9 筒状部
10 空洞部
10R 可撓性棒状芯材
10W 線状芯材
11 樹脂層を有する係止連結部材の主体部
14 樹脂層A
15、16 樹脂層B
17、18 連結部(固着部)
20 キャップ状位置決め部材
21 クッション成形体
22 溝底
23 フック係合素子部
24 開孔
Sl ループ係合素子部の始点部
Sf フック係合素子部の始点部
30、40、50、80 位置決め部材
60 係着型位置決め部材
70 嵌合型位置決め部材
帯状の係止連結部材の主体部1は、図3(A)に示すように第1の主表面側が内側となるように2つ折りにし、所定部位で縫製、熱融着、又は接着等により第1の主表面同士の固着部8が形成される。筒状部9の内周には空洞部10を有している。なお、固着部8は、被覆材への縫着部により形成されてもよい。
また、図3(B)に示すように、ループ係合素子部5のみにより円筒を形成し、その内周に可撓性棒状芯材10Rを挿入し、さらに必要に応じて可撓性棒状芯材の外周と第1の主表面とを接着剤等により固着した構成とすることができる。可撓性棒状芯材10Rは、図3(B)においては、円筒の内周を満たす外径の場合を例示しているが、芯材の機能、すなわち、係止連結部材の主体部のループ係合素子部をクッション成形体側へ確実に引き込むという機能を有していれば、細い外径のものであってもよい。
以下、編布製の基布にループ係合素子を編成する場合を中心に説明する。
位置決め部材は、クッション成形体側のフック係合素子部の始点部と正確な位置合せができるような位置関係を満足するように設けられる。
しかしながら、本願の係止連結部材は、自動車用座席などに使用されるので、クッション成形体側に位置決め用凹部を設け、係止連結部材側の位置決め部材は、当該位置決め用凹部に挿入可能な突起状を呈しているものが、被覆材取付け時の押込み方向と一致するので好ましい。
図10は本発明の係止連結部材1bを取り付けた被覆材Cをクッション成形体21の溝部22に固定する方法の一例を示す概略図である。クッション成形体21の溝部底部には、図11に断面図として示すように、フック係合素子部23が立設されており、その始点Sfから所定の位置に開孔24が設けられている。本実施態様において、係止連結部材1bは、図3(B)に示すように、ループ係合素子部5内周の筒状部に可撓性棒状芯材10Rを取付けたものであり、末端にはフック係合素子部の始点部Slから所定の位置にキャップ状位置決め部材20が取付けられている。
キャップ状位置決め部材20の先端には膨頭状の突起部201を有し、クッション成形体21に穿設された開孔24に挿入されるようになっている。
膨頭状の突起部201とすることによって、開孔24との摩擦力を増して浮き上がりや、振れを少なくして、位置決めの正確化を図ることができる。
また、クッション成形体の開孔24に、位置決め部材20を挿入させた時に、突起部が入った装着感が得られる。
芯材として鋼線等の針金等や塑性変形が可能な合成樹脂性線状材を用いる場合には、当該芯材を延長して、クッション成形体21の溝部22の開孔24に向けて折り曲げ、さらにその先端部を折り曲げてループを形成する等して、当該ループを位置決め部材と兼ねるようにしてもよい。
この係止連結部材は、図17に示すように、クッション成形体21の溝部において、クッション成形体の位置決め用開孔24に芯材10Wに延在するループ状位置決め部材80を係合させて、ループ係合素子部の始点部Slとフック係合素子部の始点部Slとを一致させ、しかる後ループ係合素子部とフック係合素子部とを係合させる。
なお、この場合において、少なくとも被覆材Cの取り付け作業を始めに行う側のループ係合素子部の始点部の近傍では、芯材10Wと、空洞部10の内周との接触部で接着剤等により固着しておけば、位置決め部材80とループ係合素子部の始点部との距離が一定となるので、フック係合素子部の始点部との位置合せがより正確となり、望ましい。
被覆材としては、編織物、天然繊維または合成繊維の不織布、発泡ポリエチレン、発泡ポリスチレン、発泡ポリウレタンなどの発泡合成樹脂シート、天然または人工皮革シート、それらの積層体などが用いられる。クッション成形体としては、発泡ウレタン、合成繊維積層体、天然繊維フェルトなどが用いられる。
図14は、樹脂層を有する係止連結部材11の帯状基布による樹脂層15、16付きの連結部17との間に位置決め部材30の平板部を挟み込んで固着した位置決め部材付き係止連結部材11を、クッション成形体21に取り付ける前の状態を示している。位置決め部材30は図15にZ-Z線断面図として示すように、クッション成形体21の溝22の底部に穿設された開孔24と係合する突起部301とその後端側に平板部302を有している。位置決め部材30の材質は、平板部302を、図8に示す連結部17と縫製により固着するのが実用的なので、ミシンにより縫製が可能な厚みと物性になるよう合成樹脂を選択して、所定の厚みとされている。突起部301とその後端側に平板部302とは、射出成形等により一体の構成にするのがコスト的に望ましいが、別個のものを相互に固着したものであってもよい。
なお、ループ係合素子部13(5)を有しない基布12又は2は、ループ係合素子部13(5)を長さ方向に間欠的に立設するか、一旦立設したループ係合素子部のループを除去するか、樹脂等を固着するなどして、フック係合素子部と係合しないようにしたものが好適である。
また、平板部302の基布12又は2への固着(固定)は、必ずしも2枚の基布間に平板部302を挟みこむ必要はなく、2枚重ね状の基布に平板部302を重ねて固着してもよい。固着は、ミシンによる縫着が実用的である。
一方、本発明においては、クッション成形体に設けられた位置決め用凹部に雌部材を装着し、位置決め部材の突起部(雄部)と嵌合又は係着可能に構成することができる。嵌合又は係着の方式としては、例えば、突起部と孔の組み合わせでは、孔部に挿入する際には、突起部側が縮径し、挿入完了後に所定の径に復元させる構造や、雌部材の孔に後端からばね材によりピン状物を付勢して、雄部材挿入後に雄部材の凹部と係着させる方式などが例示される。
図20は、位置決め部材として円筒状のクリップ303と溝底部に固着された半割り状受け部材241の組み合わせからなる位置決め部材60を斜視図で示している。
図21は、矢尻状の突起304と、溝底部に固着された前記矢尻状の突起304の外径を受容できる内径を有する円環材242との組み合わせからなる位置決め部材70を斜視図で示している。
このように嵌合又は係着可能な組み合わせとすれば、感触や、音によって、ループ係合素子部側とフック係合素子部側との位置決めが正確に行われたことが確認しやすいので、双方の始点部のより正確な一致と、被覆材の取付け作業の効率化を図ることができる。
位置決めがされる前にフック係合素子部とループ係合素子部が係合するのをより確実に防ぐためには、ループ係合素子部側に剥離紙等を介在させて、位置決め後に、逐次当該剥離紙を除去しながら係止連結部材を溝底部側へ押込んで被覆材をクッション成形体に固定させることもできる。
<係止連結部材の主体部の製造>
下記の原糸を用い、ラッセル編みにより基布とループ係合素子部を形成した係止連結部材の主体部を使用した。
(1)原糸
クサリ糸:PET加工糸 330T/96F
緯挿入糸:PET加工糸 330T/96F//2
ループ糸:PET生糸 167T/30F
(2)編み構造
ラッセル編み 16inゲージ 縦密度:32コース/in
ループ密度:160個/in2 ループ高さ:2mm
テープ幅(W):40mm 中央ループ幅(w):10mm
目付:9g/m
(3)伸縮性
伸縮率:4%、伸縮弾性率:48%
上記の係止連結部材の主体部は、図1に斜視図及び図2に断面図に示す形状であり、40mm幅の基布2の第2の主体面の中央部に幅10mmでループ高さ2mmのループ係合素子部が形成されている。この係止連結部材主体部としての帯状基布の第1の主表面が対向するように幅方向両端部を重ね合わせて、第2主表面のループ係合素子部の幅10mmで筒状部外周が形成されるように、第1の主表面側に低密度ポリエチレン製の外径3.5mmの線材を可撓性棒状芯材として、図3(B)に示す断面構造で位置決め部材未着の係止連結部材を作製した。可撓性棒状芯材の外周と第1の主表面とをホットメルト接着剤等により固着した。図3(B)において主体面同士の固着部8の上方に、約11mmの被覆材との連結部6兼固着部7(以下、「被覆材連結部」という。)を立ち上げた。
該被覆材連結部に2枚の被覆材C(ポリエステル繊維製の丸編地(株)クラレ製)を縫製して固着した係止連結部材主体部に、位置決め部材20を取り付けた。該位置決め部材20は、図12に示すもので、その構成は既に説明済である。挟着部の内径5.5mm、長さ24mmであり、前記可撓性棒状芯材とループ係合素子部を含む見かけの外径を約5.5mmとして、挟着部202に収納し、挟着片204a、204bを係合させて係止連結部材の先端に位置決め部材20を固着した。
位置決め部材20は図11において、ループ係合素子部5の始点部Slから突起部201の中心までの距離が35mmになるように固着した。次いで、曲線状の溝部22を有し、該溝部の底部に開孔24とフック係合素子部23が立設されている発泡ウレタン製クッション成形体の開孔24に位置決め部材20の先端部を挿入して、フック係合素子部23の始点部Sfとループ係合素子部5の始点部Slとを一致させ、しかる後係止連結部材を順じ、溝部に押込んで前記被覆材を固定し自動車用シートを作製した。位置決め部材によりフック係合素子部23の始点部Sfとループ係合素子部13の始点部Slとを一致させたので、相互の始点部のずれによる被覆材の不具合は発生せず、円滑に被覆材の固定作業ができた。
<樹脂層付き係止連結部材の主体部の製造>
実施例1に用いたものと同一の係止連結部材主体部の帯状ループ係合素子部のループ係合素子部形成面(第2の主表面)に対向する面(第1の主表面)の中央部に長手方向に沿ってポリアミド系樹脂(“マイクロメルト6211”(株)ヘンケル社製)を用いて不連続樹脂層Aを形成した(幅10mm、厚さ120μm、10mm/5mmピッチ(塗工部/非塗工部))。さらに、前記ポリアミド系樹脂を用いて該帯状ループ係合素子部の両端部に連続樹脂層Bを形成し(幅10mm、厚さ150μm)、図4と同様の構成の係止連結部材主体部を製造した。得られた係止連結部材の主体部の樹脂層形成部分の撓み抵抗力は60g、非形成部分の撓み抵抗力は18gであった。
実施例1において、係止連結部材に位置決め部材20を取付けない他は、実施例1と同様にしてクッション成形体への被覆材の固定を行ったが、フック係合素子部23の始点部Sfとループ係合素子部13の始点部Slとが一致しないため、被覆材の捩れが生じ、固定作業のやり直しが必要となった。
また、本発明の被覆クッション成形体の製造方法は、クッション成形体と被覆材とのずれ等が生じないので、作業能率が向上できる製造方法として、自動車用座席の製造等に有効に利用できる。
さらに、本発明の被覆クッション成形体は、被覆材の皺や弛みのない美麗な被覆クッション成形体として自動車用座席等に利用できる。
Claims (7)
- 被覆材をクッション成形体に係止するための係止連結部材であって、該係止連結部材は、第1の主表面及び該第1の主表面に対向する第2の主表面を有する帯状基布であって、該第2の主表面の少なくとも一部に該帯状基布の長さ方向に沿って立設されたループ係合素子部、及び、該ループ係合素子部の両側に長さ方向に延在する連結部となる領域を有する主体部と該主体部の少なくとも一方の長さ方向端末部に配設された位置決め部材とからなり、該ループ係合素子部の両側の該連結部となる領域を該第1の主表面を内側にして筒状部が形成されるようにして対向させて被覆材連結部を形成しており、該位置決め部材は該ループ係合素子部の始点部が該クッション成形体の溝部に配設されたフック係合素子部の始点部に係合するよう配設されていることを特徴とする被覆材の係止連結部材。
- 前記第1の主表面上にさらに樹脂層A及び/又は樹脂層Bを有し、該樹脂層Aは該帯状基布の長さ方向に沿って中央部に不連続に形成され、該樹脂層Bは該帯状基布の長さ方向に沿って該帯状基布の両端部に連続または不連続に形成され、かつ、該樹脂層Aと該両端部の樹脂層Bとの間には樹脂層が形成されていない領域を有し、該両端部の樹脂層Bが第1の主表面が内側になるように対向されて被覆材連結部を形成している請求項1に記載の被覆材の係止連結部材。
- 前記位置決め部材が、該クッション成形体に設けられた位置決め用凹部に挿入可能な突起状部を有する請求項1又は2に記載の被覆材の係止連結部材。
- 前記筒状部の内部に可撓性棒状芯材を挿入し、該可撓性棒状芯材の少なくとも一方の端末部に、クッション成形体に配設された位置決め用凹部に嵌着する突起部を有する位置決め部材を有する請求項1~3のいずれかに記載の被覆材の係止連結部材。
- 前記位置決め部材が、クッション成形体に設けられた位置決め用雌部に嵌合又は係着可能な突起状雄部を有する請求項1~4のいずれかに記載の被覆材の係止連結部材。
- 請求項1~5のいずれかに記載の被覆材の係止連結部材の連結部に被覆材を縫着し、クッション成形体のフック係合素子部が埋設された部位を含む溝部において、該係止連結部材の位置決め部材とクッション成形体の溝部底部の位置決め用凹部とを当接又は係着させて、該係止連結部材のループ係合素子部の始点部とクッション成形体のフック係合素子部の始点部とを一致させ、該ループ係合素子部の始点部から係止連結部材を長手方向に順じ溝底部のフック係合素子部に押付けることによって、フック係合素子部とループ係合素子部とを係合させて、被覆材をクッション成形体に固定させて被覆する工程を含むことを特徴とする被覆クッション成形体の製造方法。
- 請求項6に記載の製造方法により得られたことを特徴とする被覆クッション成形体。
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US20110305864A1 (en) * | 2009-04-30 | 2011-12-15 | Ykk Corporation | Fastening Member |
US9061882B2 (en) * | 2009-04-30 | 2015-06-23 | Ykk Corporation | Fastening member |
JP2014076108A (ja) * | 2012-10-09 | 2014-05-01 | 3M Innovative Properties Co | ファスナ部材 |
JP2016088365A (ja) * | 2014-11-07 | 2016-05-23 | トヨタ紡織株式会社 | 乗物用シート |
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JP2019111081A (ja) * | 2017-12-22 | 2019-07-11 | 株式会社ニフコ | シートカバーの取付構造 |
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Also Published As
Publication number | Publication date |
---|---|
US20120133194A1 (en) | 2012-05-31 |
JPWO2010110042A1 (ja) | 2012-09-27 |
CN102368925A (zh) | 2012-03-07 |
EP2422638A1 (en) | 2012-02-29 |
JP5690717B2 (ja) | 2015-03-25 |
US8882203B2 (en) | 2014-11-11 |
EP2422638A4 (en) | 2015-05-27 |
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