JP4452570B2 - Carpet for vehicle and method for manufacturing the same - Google Patents

Description

  The present invention relates to a vehicle carpet placed on a floor in a passenger compartment and a method for manufacturing the same.

Conventionally, a floor carpet has been laid on the floor of a passenger car to decorate and protect the interior of the vehicle. The floor carpet is a fibrous rug that covers the floor in the passenger compartment, and the occupant's feet receive more rubs associated with getting on and off the occupant than other parts, so that the floor carpet is protected under the occupant's feet. A floor mat (protective carpet) is placed on the floor carpet. This floor mat is also a fibrous rug that covers the floor in the passenger compartment. When such a floor mat is used, it is not necessary to make the entire floor carpet into a highly wear-resistant structure, so that the cost of the carpet used in the automobile can be reduced. Even if sand particles or the like adhering to the occupant's shoes enter the floor mat, only the floor mat can be taken out of the vehicle and easily cleaned.
This type of floor mat is a raised mat that is formed by tufting a pile yarn with relatively long hairs on a non-woven fabric of long fibers or a base fabric woven into a coarse weave, enhancing design and texture. It is considered as a protective carpet that catches sand particles, etc., dropped from the occupant during napping. In addition, in order to prevent the pile from coming off from the base fabric, a floor mat is formed by backing a secondary base fabric or a resin backing material on the back surface of the base fabric.

Here, the outer periphery of the floor mat is trimmed in order to prevent fraying of the structure of the base fabric and the pile yarn. In Patent Document 1, the following edging process is described.
(1) The edge of the carpet mat is trimmed using an overlock sewing machine (over-etching sewing machine), with the yarn-like thick yarn as the upper yarn and the normal yarn as the lower yarn.
(2) Wrap the periphery of the carpet mat with a soft plastic film tape, or a fiber tape with softness, or a tape with thin cloth laminated on the back of a soft plastic, and sew the entire wrapped tape with a sewing machine. Border processing.
(3) A U-shaped fringe molding made of soft plastic having a U-shaped cross section is fitted to the peripheral edge of the cross section, and the entire U-shaped fringing mall is sewn and machined.
(4) Using a hot press, a high-frequency welder or the like, the peripheral cutting portion of the carpet made of synthetic fiber is melted and trimmed.
Patent Document 2 describes the following edging process.
(5) Overlock the edge of the carpet mat with overlock yarn made of the same type of polyolefin resin as the base fabric, pile, or backing and twisted from 5 to 20 denier filaments to 2000 to 3000 denier. Overlock).
(6) Wrap the edge of the carpet mat with a ribbon-like sheet made of the same type of polyolefin resin as the base fabric, pile, or backing, and sew it with sewing threads made of the same type of polyolefin resin as the base fabric, pile, or backing. wear.
Japanese Utility Model Publication No. 5-24349 JP 2000-83796 A

  In the techniques described in Patent Literatures 1 and 2, the continuity and sense of unity from the pile to the overlock stitching portion were weak. That is, in the above (1) and (5), the edge thread of the overlock stitched part was felt different from the pile part. In the above (2), (5), and (6), the tape, the U-shaped bordering molding, and the sheet that wrap the periphery of the carpet mat are felt different from the pile portion. Also, the sewing thread visible when the tape or the like was sewn was felt different from the pile portion. In (4) above, the melted part at the periphery was felt different from the pile part.

  The present invention has been made in view of the above problems, and for a carpet for a vehicle placed on a floor in a vehicle compartment, such as the above-described protective carpet, the continuity and sense of unity from the pile to the over-stitched portion are improved. The purpose is to improve the sense of quality.

In order to achieve the above object, the present invention provides a carpet for a vehicle that is placed on a floor in a vehicle interior, and includes a planar substrate and a pile formed on the substrate, and at least a core. rising or the outer periphery of the substrate the ratio of the pitch of the buttonhole stitching as 1/2 to 1 to the outer diameter of the chenille yarn in a chenille yarn having a yarn and cover thread machining is performed to napped wound on the core yarn It is characterized by being formed by sewing. That is, since the outer periphery of the base material is in a state where the raised yarn can be seen, it is possible to improve the feeling of continuity and unity from the pile to the over-stitched portion and to improve the sense of quality. In addition, since the ratio of the pitch of the overlock stitches to the outer diameter of the above-mentioned molding thread is 1/2 to 1, the gap between the overlocking thread threads is sealed, and the base material frays from the gap between the molding threads. Disappears.

In addition, if the carpet for this vehicle is further placed on the carpet in the vehicle interior, the continuity and unity from the carpet to the sewed portion of the carpet for this vehicle are also improved. It is particularly suitable as a carpet to be placed on the other carpet.
In the case of over stitching, the entire outer periphery of the substrate may be over stitched, or only a part of the outer periphery may be over stitched, both of which are included in the invention of claim 1 .
The base material can be a base fabric such as a nonwoven fabric, a laminate of a base fabric and a backing material, or the like. Here, the backing material can be a secondary base fabric, rubber, resin, or the like.
If an overlock sewing machine is used during overlock sewing, overlock sewing can be performed easily.

  The decorative yarn may be configured to be one or more decorative yarns selected from a bulky decorative yarn, a highly elastic decorative yarn, and a false twist decorative yarn. Since these decorative yarns have good volume and fluffiness, it is possible to ensure a continuous three-dimensional design and feel from the raised portion to the overlock portion of the vehicle carpet.

When the outer periphery of the base material is over-sewed, the outer diameter of the over-stitched portion formed with the molding thread is smaller than the height of the pile formed on the base material, and is formed on the base material. The pile may have a configuration in which the upper end is lowered toward the outer peripheral side from the center side in a predetermined region near the outer periphery on the base material. In the vicinity of the outer periphery of the base material, a feeling of connection from the upper end of the pile to the over stitched portion can be obtained, so that the continuity and unity can be further improved. Further, since the overlock stitching portion is set lower than the upper end of the pile, even if the vehicle carpet is rubbed with shoes or the like, the molding thread in the overlock stitching portion is not easily worn.

  At that time, the pile formed on the base material is rounded in the vertical section in a predetermined region near the outer periphery on the base material from the center side toward the outer peripheral side, and comes into contact with the upper end of the over stitch portion. It is good also as a structure made low. Then, since the feeling connected from the upper end of a pile to the overlock stitching part can be made more natural, the continuity and the sense of unity can be further improved.

  Moreover, the pile formed on the said base material is good also as a structure by which the upper end is bent to the outer peripheral side in the predetermined area | region of the outer periphery vicinity on the said base material. Then, the feeling connected from the upper end of the pile to the over stitched portion can be made more natural, so that the continuity and the sense of unity can be further improved.

The pile has a height of 7 to 30 mm on the base material, and the outer diameter of the stitched portion formed of the molding thread is 5 to 15 mm and is 25 of the height of the pile formed on the base material. It is good also as a structure made into -75%. When the outer diameter of the overlocked portion is equal to or greater than the lower limit, the three-dimensional effect of the overlocked portion is sufficiently obtained, and the continuity of the design from the napped to the overlocked portion is enhanced. In addition, if the outer diameter of the overlock stitched portion is less than or equal to the upper limit, the overlock stitched portion is sufficiently lower than the upper end of the pile, so that the abrasion resistance is improved, and even if the vehicle carpet is rubbed with shoes etc. The wear of the molding thread is sufficiently prevented.

Outer diameter of the chenille yarn is 1.0 to 3.0 mm, the pitch of the buttonhole stitching of the chenille yarn for the outer periphery of the base material When it is 0.5 to 3.0 mm, No and if chenille yarn and overcasting It becomes difficult to see the boundary, and it is possible to produce a new design as if it is bordered with one border material. In addition, the vertical cross section of the over stitched portion can be kept substantially circular, and the appearance can be further improved.

It should be noted that the outer periphery of a flat base material having a pile formed on the upper surface is a knurl to the outer diameter of the morse yarn with at least a core yarn and a decorative yarn that has been processed to be wound around the core yarn. The same operation and effect can be obtained also in the invention of the manufacturing method for manufacturing a carpet for a vehicular by sewing with a sewing pitch ratio of 1/2 to 1 .

According to the inventions according to claim 1 and claim 8 , it is possible to improve the sense of continuity and unity from the pile to the over stitched portion, improve the sense of quality, and the base material frays from the gap between the molding yarns. This can be prevented more reliably .
In the invention according to the second to seventh aspects , it is possible to further improve the sense of continuity and sense of unity from the pile to the over stitched portion, and further improve the sense of quality. In the inventions according to claim 3 and claim 6 , the durability of the carpet for this vehicle can be improved by making the molding yarn at the over-stitched portion difficult to wear. In the invention according to claim 7 , it is possible to further improve the appearance of the overlock stitching portion .

Hereinafter, embodiments of the present invention will be described in the following order.
(1) Configuration of vehicle carpet:
(2) Action and effect of carpet for vehicle:
(3) Modification:

(1) Configuration of vehicle carpet:
FIG. 1 is a top view showing a protective carpet 100 to which a vehicle carpet of the present invention is applied as viewed from above, and FIG. 2 is a vertical sectional view of a main part as seen from the direction of A1-A1 in FIG. FIG. 3 is a right side view of the main part viewed from the direction A2 in FIG. FIG. 4 is a diagram schematically showing the structure of a molding yarn. FIG. 5 is a diagram for explaining the curvature of the upper end of the pile in the vertical cross section.

The carpet 100 is placed on the floor in the vehicle interior, and in particular, is further placed on the floor carpet C1 in the vehicle interior. The carpet 100 is disposed under a passenger's foot of a passenger car and has various contours according to the interior shape of the car. The carpet 100 of the present embodiment is a tufted carpet, and its basic parts are a nonwoven fabric of long fibers (a kind of base fabric), a base fabric woven into a coarse weave, and a relatively bristle foot tufted into the base fabric. It consists of a long pile.
The carpet 100 includes a planar base material 10 and a pile 20 formed on the base material, and a design yarn (also referred to as a design twist yarn) 30 that is a trimming yarn around the entire outer periphery of the base material. It is formed by over stitching.

As the base material 10, a base fabric (woven fabric or non-woven fabric) made of a fiber material such as natural fiber or synthetic fiber, a laminate of a base fabric and a backing material, or the like can be used. As the base fabric, a conventional tuft base fabric can be used. The synthetic fiber used for the base fabric can be a fiber made of a polyolefin resin such as a polypropylene resin, a polyethylene resin, or an ethylene-propylene copolymer. If the back side of the base fabric is lined with secondary base fabric, natural rubber, vulcanized sheet rubber or other synthetic rubber, natural rubber, soft resin, etc., it prevents pile from slipping out, prevents slipping, prevents wrinkles, and dimensions. The effect of preventing variation in the thickness can be obtained. As the resin used for the backing material, the polyolefin resin, polyvinyl chloride, polyamide resin, or the like can be used, and a soft plastic is preferable. Backing is done by making the backing material into a sheet and sticking it to the back of the base fabric with an adhesive, fusing plastic, heating and pressing the sheet-like backing material and base fabric together, etc. Done.
In addition, if a large number of small protrusions called spikes (for example, a height of 0.2 to 2.0 mm) are formed on the surface of the backing material opposite to the bonding surface with the base fabric, the carpet 100 may be made difficult to slip. it can.

The pile 20 is formed by a known tufting method in which pile yarn is planted on the surface 11 of the substrate 10. The pile yarn can be a yarn made of a thermoplastic resin such as a polyolefin resin, and a polyamide yarn, a polyester yarn, an acrylic yarn, a polypropylene yarn, or the like is used. When one or more yarns selected from these pile yarns are pierced into the base material by a known tufting machine and cut piles or loop piles are formed upright on the surface of the base material, a pile 20 is formed on the base material 10. Is done. Note that a cut pile and a loop pile may be mixed.
The apparent thickness of the pile is preferably 500 to 1500 dtex (decitex). Further, the pile tufting interval is suitably 8 to 10 gauge. These numerical values are arbitrarily designed in consideration of the characteristics and appearance as the finishing of tufting.
The pile 20 is preferably a long pile, and the height h0 from the substrate surface 11 to the tip of the pile 20 is preferably 7 to 30 mm, and more preferably 10 to 20 mm. The height h0 is set to 7 mm (10 mm) or more in order to make the pile feel more voluminous, and the height h0 or less is set to 30 mm (20 mm) or less in order to keep the pile well in an upright state for better appearance. This is to make it happen.

The design yarn 30 is an edged yarn made by twisting two or more yarns having different physical properties. As shown in FIG. 4, the design yarn 30 of the present embodiment includes at least a core yarn 41 and a molding yarn (moulding yarn) having a decorative yarn (entangled yarn) 42 that has been processed to be entangled with the core yarn and fluffed. Yarn, also called Chenille yarn). The molding yarn is formed by winding and covering the outer periphery of the core yarn with a decorative yarn, and is used as a trimming yarn for sewing around the periphery of the carpet 100. The core yarn 41 constituting the molding yarn 40 of the present embodiment is composed of two pieces, and an adhesive yarn 43 is provided corresponding to each core yarn. The decorative yarn 42 of the present embodiment is processed so as to be wound around the core yarn 41. For example, by using a heat-sealing yarn as the adhesive yarn 43 and using a twisting machine such as a ring molding twisting machine, a plurality of decorative yarns 42 (for example, three) are wound around the two core yarns 41 in a loop shape, The decorative yarn loop is cut and raised, and the adhesive yarn 43 provided corresponding to each core yarn 41 is heat-sealed to form the molding yarn 40.
The core yarn 41 is a yarn that secures the strength of the molding yarn, and can be a yarn made of a thermoplastic resin such as a polyolefin resin, such as polyester yarn (manufactured by Tetron), polyamide yarn, acrylic yarn, polypropylene yarn, etc. Is used. The thickness of the core yarn can be 30 dtex or the like. The bonding yarn 43 can be a yarn made of a thermoplastic resin or the like, and a polyamide yarn (made of nylon) or the like is used.

  The decorative yarn 42 is also called a flower yarn, and is a yarn that ensures a bulky, three-dimensional, flexible and fluffy design. The decorative yarn can be a yarn made of a thermoplastic resin such as a polyolefin resin, and a polyester yarn (manufactured by Tetron), a polyamide yarn, an acrylic yarn, a polypropylene yarn, or the like is used. When one or more decorative yarns selected from bulky decorative yarns, highly elastic decorative yarns, false twisted decorative yarns are used as the decorative yarns, a continuity and a sense of unity from the pile 20 in the carpet 100 to the overlock stitching portion L1. It is possible to further improve the feeling of luxury. This is because these decorative yarns have good volume and fluffiness, so that a continuous three-dimensional design and feel can be secured from the pile portions L3 and L2 of the protective carpet to the overlock stitch portion L1. .

  The outer diameter (apparent diameter) d1 of the design yarn is preferably 1.0 to 3.0 mm, and more preferably 1.5 to 2.5 mm. The outer diameter d1 is particularly preferably determined in relation to the over stitching pitch. The reason why the outer diameter d1 is set to 1.0 mm (1.5 mm) or more is to obtain a sufficiently good design with respect to the carpet for the vehicle by sufficiently giving the three-dimensional effect of the over stitched portion, and the outer diameter d1 being 3.0 mm. (2.5 mm) or less is to obtain a sufficiently good design for the carpet for a vehicle by sufficiently reducing the unevenness of the design yarn at the over stitched portion.

Overlock sewing can be performed using a known overlock sewing machine. In the overlock sewing machine, the raising / lowering operation of the sewing needle through the design yarn for over-lock sewing and the looper that operates in synchronization with the raising / lowering operation of the sewing needle cooperate with each other, and the outer periphery of the base material 10 is continuously formed with the design yarn. Perform overlock stitching. As shown in FIGS. 2 and 5, the overlock sewing machine penetrates the lower thread 31 in the vertical direction with respect to the base material 10 in the vicinity of the outer periphery of the base material 10, and the design yarn 30 and the base material on the base material surface 11. The design yarn 30 on the back surface 12 is connected by the lower yarn 31 so as not to be unwound. Then, the shape of the vertical cross section of the overlock portion L1 formed by the design yarn 30 is a shape close to a circle.
A pile 20 (for example, 1 to 5 pile rows from the outer periphery) formed on the outer peripheral side from the position where the design yarn 30 penetrates in the vertical direction in the vicinity of the outer periphery of the base material 10 is cut off from the base material 10 before overlocking. If you leave it, you can sew without piles. As a result, it is possible to reduce the load applied to the design yarn 30 as compared with the case where the stitching is performed while winding the pile, and the three-dimensional feeling of the design yarn can be maintained.
When the outer periphery of the planar base material 10 is overlocked with the design thread 30, the overlock stitch portion L1 does not feel different when viewed from the pile 20, so the continuity and unity from the pile to the overlock portion is good. It is possible to improve the sense of quality. In addition, since the design yarn is a twisted yarn made from a plurality of yarns, the contact between the overlock portion and the floor surface in the vehicle interior is improved, and dust such as sand particles is less likely to enter the back of the vehicle carpet from the surroundings. The effect that it becomes hard to slip with respect to a floor surface can also be expected. In particular, Runode used makes the chromophore at the distal end Lumpur yarns having a cover thread machining for nap is performed as edging yarn, it is even more.

As shown in FIG. 2, the outer diameter d0 of the portion of the stitch stitch formed by the design thread 30 when the outer periphery of the substrate 10 is stitched is smaller than the height h0 of the pile 20 formed on the substrate 10. Has been. As a result, the over-stitched portion L1 is made lower than the upper end 21 of the pile 20, so that the design yarn 30 that is over-stitched when the carpet 100 is abraded under the occupant's feet is less likely to wear, and the durability of the protective carpet is improved. be able to. Further, the fuzz of the molding yarn used as the trimming yarn is less likely to fall down, and the good appearance can be maintained for a long time.
When the height h0 of the pile 20 is a height of 7 to 30 mm on the base material 10, the outer diameter d0 of the stitched portion formed by the design yarn 30 is 5 to 15 mm and the height h0 of the pile is 25 to 75% is preferable. The reason why the outer diameter d0 of the vertical cross section of the overlock stitched portion L1 is set to 5 mm or more and 0.25 × h0 or more is to obtain a sufficiently good design for the carpet for the vehicle by sufficiently giving the three-dimensional effect of the overlock stitched portion. The outer diameter d0 of 15 mm or less and 0.75 × h0 or less is sufficiently good for a protective carpet because it sufficiently prevents wear of the design thread 30 that is over-stitched when the carpet 100 is scratched under the occupant's feet. This is to obtain durability.

As shown in FIG. 3, when the outer diameter d1 of the design yarn is 1.0 to 3.0 mm, the pitch p1 of the stitching of the design yarn 30 with respect to the outer periphery of the base material 10 is 0.5 to 3.0 mm. preferable. When the pitch p1 is set to 3.0 mm or less, the boundary between the design yarns that are stitched over is difficult to see, and a new design is produced as if it is bordered by one border material. Further, when the pitch p1 is set to 0.5 to 3.0 mm, the vertical cross section of the over stitched portion L1 can be kept almost circular, and the appearance is further improved. Since the molding yarn is used as the trimming yarn, the fuzzes of the adjacent molding yarns overlap to make it difficult to see the boundary, and a novel design is produced as if it is trimmed with a single molding.
Further, the ratio p1 / d1 of the stitching pitch p1 to the outer diameter d1 of the design yarn is preferably 1/2 to 1. When the ratio p1 / d1 is 1/2 or more, the gap L4 between the design yarns that are stitched over is sealed, so that the base material is not frayed from the gap between the design yarns and the durability of the carpet for the vehicle is improved. be able to. Further, when the ratio p1 / d1 is 1 or less, the unevenness of the stitched portion due to the overlapping of adjacent design yarns is sufficiently reduced to obtain a sufficiently good design for the vehicle carpet.

In the present embodiment, the pile in the vicinity of the outer periphery on the base material 10 is processed before overlock sewing.
As shown in FIG. 2 and FIG. 5, in this embodiment, the upper end 21 of the pile 20 formed on the base material 10 is a predetermined region L2 near the outer periphery on the base material 10 (5 to 50 mm from the outer periphery to the center side). In the region up to the extent), the level decreases from the center side toward the outer peripheral side. The outer diameter d0 of the overlock portion is smaller than the pile height h0. Since the pile height is gradually reduced from the pile height h0 to the outer peripheral side in the predetermined inner region L3 excluding the predetermined region L2 in the vicinity of the outer periphery in the region where the pile 20 is formed on the base material 10. In the vicinity of the outer periphery of the base material, a feeling of connecting from the upper end of the pile to the overlock stitching portion is obtained.

Further, the pile 20 is lowered so that the upper end 21 is rounded in the vertical section in the predetermined region L2 near the outer periphery in the vicinity of the outer periphery, and is in contact with the upper end of the over-stitched portion L1. Since R is provided at the upper end of the pile when the pile height is gradually reduced, the feeling of connecting from the upper end of the pile to the overlock stitching portion can be made more natural. In addition, curvature Rd1, Rd2 of the pile upper end in a vertical cross section is determined according to the pile height h0 or the outer diameter d0 of the overlocking portion, and can be, for example, 15 to 30 mm. Further, the curvature Rd1 on the center side is preferably larger than the curvature Rd2 on the outer peripheral side, and more preferably Rd1>h0>Rd2> d0. Then, the feeling connected from the upper end of the pile to the overlock stitching portion can be made more natural, and the continuity and the sense of unity from the pile to the overlock stitching portion are further improved.
Of course, depending on the design required for the carpet for the vehicle, even if the pile height is gradually decreased so that the upper end of the pile in the vertical section of the predetermined region L2 is a straight line, or the gradual decrease rate is changed from an intermediate position. Good.
In order to gradually reduce the pile height in the predetermined region L2 in the vicinity of the outer periphery, for example, the height of the pile formed on the base material is uniformly tufted at the height h0, and then the pile 20 in the predetermined region L2 in the vicinity of the outer periphery. What is necessary is just to excise the upper end 21 by performing a shearing process. If overlocking is performed thereafter, the pile is preferably not caught in the overlocking portion.

Further, as shown in FIG. 2, the pile 20 has an upper end 21 bent to the outer peripheral side in a predetermined region L2 near the outer periphery on the base material. For example, when heat setting is performed on the tip of the pile 20 in the predetermined region L2 near the outer periphery, a curved shape can be imparted to the tip of the pile. Also, increasing the tufting density of the pile or increasing the thickness (fineness) of the pile will cause the piles to press against each other, so the tip of the pile will naturally curve outward near the periphery of the substrate. To do. Therefore, the tufting density of the pile formed on the base material may be set to a predetermined density or more, or the thickness may be set to a predetermined fineness or more, and the tip of each pile may be curved outward.
Then, since the feeling connected from the upper end of the pile to the overlock stitching portion can be made more natural, the continuity and the sense of unity from the pile to the overlock stitching portion are further improved.

(2) Action and effect of carpet for vehicle:
As described above, when an outer periphery of the planar base material 10 having the pile 20 formed on the upper surface is stitched with the design yarn 30 using an overlock sewing machine or the like, a vehicle carpet can be manufactured. When the outer periphery of the planar substrate 10 is stitched with the design yarn 30, the outer periphery of the substrate is in a state where the stitched design yarn 30 can be seen. Continuing and stitching with a twisted thread made from a single type of thread as in the conventional example will weaken the continuity and unity from the pile to the stitched area, but the design thread 30 has two different physical properties. Since it is a twisted yarn made from the above yarns, the overlock stitch portion L1 does not feel different when viewed from the pile portions (regions L2, L3). Of course, compared to the case where the periphery of the carpet is wrapped with a tape or the like as in the conventional example or the periphery is melted, the over stitched portion does not feel different when viewed from the pile portion. Therefore, it is possible to improve the sense of continuity and unity from the pile to the over stitched portion and improve the sense of quality. As shown in FIG. 1, when the protective carpet 100 is placed on the floor carpet C1, the sense of continuity and unity from the pile of the floor carpet C1 to the overlocking portion L1 of the protective carpet 100 is good. Let me. Therefore, a protective carpet having a sense of unity with the floor carpet can be obtained, and a high-class feeling can also be improved in this respect.

Et al is, since processing for napped wound around a core yarn as leno thread is using the cover thread made, overcasting unit is a state in which cover thread which is napped looks continuous to the buttonhole stitching portion from the pile The feeling of feeling and unity can be further improved, and the sense of quality can be further improved.

  In the present embodiment, the outer diameter d0 of the overlock portion is made smaller than the pile height h0, and the tip of the pile gradually decreases toward the outer peripheral side in the predetermined region L2 near the outer periphery on the base member. In the vicinity of the outer periphery of the pile, a feeling of connection from the upper end of the pile to the overlock stitching portion is obtained. In the predetermined region L2 in the vicinity of the outer periphery, the upper end of the pile 20 is rounded in the vertical cross section so as to be in contact with the upper end of the stitched portion in the vertical cross section, or the tip of the pile 20 is bent toward the outer peripheral side. A feeling of very good connection from the upper end of the pile to the overlock stitch is obtained. Therefore, the feeling of continuity and unity from the pile to the over stitched portion is very good, and it is possible to obtain a very good luxury feeling for the vehicle carpet.

(3) Modification:
The present invention can be modified in various ways.
The carpet to which the present invention is applicable may be a needle punched carpet, a bonded carpet, or the like. The vehicle carpet may be a carpet mat or a floor mat.
Even a carpet for a vehicle formed by overlocking only a part of the outer periphery of the substrate is included in the present invention .
As the molding thread, a thread in which a decorative thread is implanted in the core thread with static electricity or an adhesive may be used.
Even the carpet for vehicles in which the pile height in the region near the outer periphery on the base material is not gradually reduced is included in the present invention.
Even a carpet for a vehicle in which the tip of the pile in the region in the vicinity of the outer periphery does not face the outer periphery is included in the present invention.
As described above, according to the present invention, according to various aspects, the continuity and sense of unity from the pile to the over-stitched portion of the carpet for a vehicle placed on the floor in the passenger compartment are improved, and a sense of quality is achieved. It becomes possible to improve.

The top view which shows the carpet for protection. The principal part vertical sectional view seen from the direction of A1-A1 in FIG. FIG. 3 is a right side view of a main part shown in the A2 direction in FIG. The schematic diagram which shows the structure of a molding thread | yarn. The figure explaining the curvature of the pile upper end in a vertical cross section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Base material 20 ... Pile 30 ... Design yarn 40 ... Mole yarn 41 ... Core yarn 42 ... Decoration yarn (entanglement yarn)
43 ... Adhesive thread 100 ... Protective carpet (car carpet)
C1 ... Floor carpet L1 ... Overlock stitching portion L2 ... Predetermined region L3 near the outer periphery on the substrate ... Predetermined inner region L4 on the substrate ... Clearance between molding yarns

Claims (8)

A carpet for a vehicle placed on a floor in a vehicle interior,
A mould yarn having a flat base material and a pile formed on the base material, and having at least a core yarn and a decorative yarn that has been processed to be wound up by being wound around the core yarn. vehicular carpet, characterized in that formed by sewing rising or the outer periphery of the substrate the ratio of the pitch of the buttonhole stitching as 1/2 to 1 with respect to the radial. The carpet according to claim 1 , wherein the decorative yarn is one or more decorative yarns selected from a bulky decorative yarn, a highly elastic decorative yarn, and a false twisted decorative yarn. . The outer diameter of the overlock portion formed with the molding thread when the outer periphery of the base material is overlocked is smaller than the height of the pile formed on the base material,
Pile formed on the base material, according to claim 1 or claim 2, characterized in that the upper end as toward the outer peripheral side is lowered from the center side in a predetermined region near the outer periphery on the base Car carpet. The pile formed on the base material is so low that the upper end is rounded in the vertical cross section in the predetermined region near the outer periphery on the base material and the upper end is rounded in contact with the upper end of the over stitched portion. The vehicle carpet according to claim 3 , wherein the vehicle carpet is provided. 5. The vehicle carpet according to claim 3, wherein an upper end of the pile formed on the base material is bent toward an outer peripheral side in a predetermined region near the outer periphery on the base material. The pile is 7-30 mm high on the substrate,
The outer diameter of the buttonhole stitching portion formed in the chenille yarn is claim 3 claims, characterized in that it is 25 to 75% of the height of the pile formed on 5~15mm and the substrate Item 6. The vehicle carpet according to any one of Items 5 . The outer diameter of the said molding thread | yarn is 1.0-3.0 mm, The pitch of the overlocking of the said molding thread | yarn with respect to the outer periphery of the said base material is 0.5-3.0 mm of Claims 1-6. The vehicle carpet as described in any one of Claims . A method of manufacturing a carpet for a vehicle placed on a floor in a vehicle compartment,
The outer periphery of a flat base material with a pile formed on the upper surface is a knitting thread that has at least a core thread and a decorative thread that has been processed to be raised by being wound around the core thread. A method for manufacturing a carpet for a vehicle, characterized in that a carpet for a vehicle is manufactured by stitching with a pitch ratio of 1/2 to 1 .

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