JP4104737B2 - Manufacturing method for perforated headrest skin - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a perforated headrest skin that covers a foam molded body of a headrest by integral skin molding.
[0002]
[Prior art]
One of the headrests attached to the upper part of the seat back of an automobile or the like is a perforated headrest. Such a headrest is usually a foam-molded product with a skin provided with a hole that fits the back of the head in the middle, and has a structure in which the skin covers the peripheral surface of the foam-molded product.
The manufacture of this type of perforated headrest skin has been conventionally made by a description technique such as Japanese Patent Publication No. 3-69683 (Prior Art 1) and Japanese Patent Laid-Open No. 9-70837 (Prior Art 2).
[0003]
[Problems to be solved by the invention]
However, according to the prior art 1, when the epicutaneous surface portion, which is the last stitched portion, is sewn, the terminal joint portion (sewing allowance) appears on the design surface side in a normal sewing method, and the appearance is poor. A special sewing machine had to be used to conceal the terminal joint inside the bag-like skin.
Moreover, according to the prior art 2, since an insert is inserted later into the skin, the insert shape is limited, and an insert having an annular core portion cannot be inserted. The insert had a large annular core part with respect to the distance between both stay parts.
[0004]
The present invention solves the above problems, and can be finished with an insert having an annular core part, and can also handle an insert having a large core part width relative to the distance between both stay parts, It is another object of the present invention to provide a method for manufacturing a perforated headrest skin that does not allow a seam allowance to be exposed even by a normal sewing method without using a special machine.
[0005]
[Means for Solving the Problems]
  In order to achieve the above object, the gist of the invention described in claim 1 is to provide a method for manufacturing a perforated headrest skin covering a core body portion related to an insert having a stay portion and an annular core body portion. While preparing a plurality of epidermis pieces divided through both stay holes for the subcutaneous surface portion to be the lower surface, only the subepidermal surface portion is insufficient while incorporating the core body portionThe main part of the peeled skinAnd turning up the peripheral edge of the lower surface opening of the main part of the epidermis that covers the core part, and making the epidermis back face outward,Apply the epidermis piece from below to the main part of the epidermis with the lower surface opening up,While the two skin pieces are sandwiched between the two sides of the stay portion, the main skin portion and the design surface of each skin piece are opposed to each other, and the corresponding peripheral edge of each skin piece is sewn to the lower surface opening periphery. The subepidermal surface part is further formed by stitching the epidermis pieces while leaving the slits connecting the stay holes, and then the epidermis main part and the epidermis back part of the epidermis surface part that are exposed to the outside are formed in the annular cylinder. The manufacturing method of the skin for a perforated headrest, characterized by being pushed into the surface and turned upside down.
  The manufacturing method for the perforated headrest skin according to the invention of claim 2 is the method of claim 1, wherein the design surface of the horseshoe-shaped skin piece and the design surface of the stitched skin piece are overlapped with each other, and the inner peripheral edge thereof A skin with a seam formed on the part, and stitching one design surface of the skin piece connecting the both sides of the inner lower edge part of the skin body and one design surface of the inner lower edge part together, and sewing The core body part is incorporated with the epidermis turned over, and then, the outer peripheral edge part of the horseshoe-shaped skin piece is overlapped so that the edges of the stitched skin pieces face each other, and the overlapping peripheral part And then turn it upside down into a horseshoe-shaped cylindrical epidermis in which the insert is incorporated, and then connect the other end of the epidermis piece to the other side of the inner lower edge of the epidermis and the other inner lower part With the edge And forming a combined the skin main part.
[0006]
  As in the present invention, when the core part is formed while the core part is incorporated and only the epidermal surface part is insufficient, even the annular core part can be incorporated into the skin without difficulty. And the skin main part can be sewn up easily, without taking out a seam allowance to the design surface side.In particular, applying the skin piece from below to the main skin part with the bottom opening up, and sandwiching the skin part from both sides with the two skin pieces, the design surface of the skin main part and each skin piece When facing each other and sewing the corresponding peripheral edge of each skin piece to the peripheral edge of the opening on the lower surface, the stitching between the opposing portions is maintained in a planar state at the time of joining, so the sewing operation is easy, and It can be easily and quickly made up by the sewing machine used. The seam allowance relating to the joint portion does not appear on the design surface of the skin that has been turned over, so that the appearance is good and the quality is excellent.
  In addition, a plurality of epidermis divided and formed through both stay holes for the subepidermal surface part that becomes the lower surface of the headrestsmallOnce the piece is prepared, the lower surface opening edge and the corresponding edge of the individual skin pieces are stitched together so that the design surfaces of the two pieces face each other, leaving a slit connecting between the stay holes, and the surface of the epidermis surface to the main part of the skin Attachment becomes possible and an annular cylinder is formed.Turning up the peripheral edge of the lower surface opening of the main part of the epidermis covering the core part with the back side of the skin facing outward, and then applying the small piece of skin from below to the main part of the epidermis with the lower surface opening up Since the lower surface opening periphery of the main skin part is turned up and the back surface of the epidermis is facing outward, the epidermis back surface of the main epidermis and the epidermis piece (subcutaneous surface part) is easily directed outward. Can be stitched together.Even inserts with a large core width relative to the distance between both stays can be accommodated. Thereafter, when the outer surface of the outer surface of the annular cylinder is pushed into the annular cylinder and turned upside down, a desired perforated headrest outer skin with no seam allowance is completed on the design surface without any difficult work.
  As in the second aspect of the invention, the design surface of the horseshoe-shaped skin piece and the design surface of the stitched skin piece are overlapped with each other so as to face each other, and a seam is formed on the inner peripheral edge portion thereof. One end edge of the skin piece connecting both sides of the inner lower edge part and one design surface of the inner lower edge part are overlapped and stitched, and further, the outer skin part of the horseshoe-shaped skin piece is stitched to the outer peripheral edge part of the horseshoe-shaped skin piece. When the edges are overlapped so that the design surfaces face each other, and the overlapping peripheral parts are stitched together, the stitches are aligned so that the back of each skin piece (or horseshoe-shaped skin piece, skin piece) is directed outward. Since the periphery is sewn, it is possible to sew using a general-purpose machine without using a special machine. One core of the skin piece connecting both sides of the inner lower edge part of the epidermis and one design surface of the inner lower edge part are overlapped and stitched, and the core part is left in an inverted state. Next, on the outer peripheral edge of the horseshoe-shaped skin piece, the edges of the stitched skin pieces are overlapped so that the design surfaces face each other, and the overlapping peripheral part is stitched to provide an annular core part. Even in the insert, since the annular cylindrical skin is made while incorporating the core, the core can be neatly accommodated in the completed headrest skin.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a manufacturing method of a perforated headrest skin according to the present invention will be described in detail.
FIGS. 1-12 is one form of the manufacturing method of the skin for perforated headrests of this invention, FIG. 1 is a perspective view of the skin for perforated headrests (henceforth "skin for headrest" or just "skin"). 2 is a perspective view of the insert, FIG. 3 is a plan view of three skin pieces constituting a part of the headrest skin, FIG. 4 is a perspective view in which the skin pieces in FIG. 3 are stitched, and FIG. 5 is stitched in FIG. FIG. 6 is a plan view of the epidermis piece constituting the epidermis surface part, and FIG. 7 is a subepithelial surface part formed by suturing the epidermis piece of FIG. FIG. 8 is a perspective view of an epidermis piece that forms the lower cylindrical part of the headrest epidermis from the epidermis of FIG. 5 to the main part of the epidermis, and FIG. 9 is the epidermis of FIG. 8 on the epidermis of FIG. The perspective view which formed the horseshoe-shaped cylindrical epidermis body by incorporating an insert after attaching a piece FIG. 10 is a perspective view showing a state in which the skin piece that forms the lower tubular portion of the headrest skin is stitched to the tubular skin body of FIG. 9, and FIG. 11 is the finished skin main portion after the stitching of FIG. FIG. 12 is a perspective view of a headrest skin that is an annular cylindrical body by stitching together a lower surface opening peripheral edge of the main skin part and a corresponding peripheral edge of the epidermal surface part. It is.
In FIG. 1 to FIG. 12, the hatch pattern E represented on the skin pieces 1 to 5, the horseshoe-shaped skin pieces 6, and the skin pieces 7 a to 7 c indicates the design surface side of the fabric skin pieces.
[0008]
As shown in FIG. 1, the headrest skin A, which is the final product, has an insert 8 incorporated therein and is sewn in an annular shape (doughnut shape). A stay portion 81 of the insert 8 protrudes from a stay hole 73 provided in the epidermis surface portion, and is fixedly supported on the top portion of a seat back (not shown). Reference numeral 75 is an inlet for foaming raw material. After the insert 8 is incorporated to complete the headrest skin A, the injection port 75 is used when the foaming material is injected into the skin. After the foaming raw material is injected into the injection port 75, the headrest is formed into an integral skin.
The headrest skin A that covers the foamed molded product and has a three-dimensional shape is composed of a fabric skin and is manufactured as follows.
[0009]
First, prior to production, skin pieces 1 to 5, horseshoe-shaped skin pieces 6, and skin pieces 7a to 7c formed by flattening the headrest skin are prepared. A certain necessary amount of seam allowance f is preliminarily supplemented at the peripheral edges of the respective skin pieces 1 to 5, horseshoe-shaped skin pieces 6, and skin pieces 7a to 7c. The epidermis main part G is made of the skin pieces 1 to 5 and the horseshoe-shaped skin piece 6, and the epidermis surface part 7 is made of the skin pieces 7a to 7c.
Here, as the material of the skin pieces 1 to 5, the horseshoe-shaped skin pieces 6 and the skin pieces 7a to 7c, a fabric skin or the like is generally used. Specifically, For example, a urethane foam sheet and a polyurethane film are integrally laminated on the fabric skin. A cut-pile woven fabric using synthetic fibers such as acrylic and polyamide as pile yarn and cotton, rayon or the like as ground warp may be used. The cut pile fabric is coated with resin for the purpose of preventing the pile fabric from coming off.
[0010]
Further, an insert 8 to be incorporated in the process of sewing the headrest epidermis is prepared (FIG. 2). The insert 8 has a stay portion 81 and a distance W between the stay portions.₂ More width W₁ Is provided with a large annular core part 82. Specifically, the pipe is processed to make a frame 8a in which the legs are folded in a Ω-shape as shown in FIG. Then, the bar 8b is horizontally mounted on both leg bases, and both ends of the bar 8b and the frame 8a are fixed by welding. The two leg portions protruding from the bar 8b become the stay portion 81, and the other portions are the distance W between the stay portions.₁ An annular core part 82 is formed to extend to both sides.
[0011]
In manufacturing the headrest skin, first, among the skin pieces 1 to 5 cut into a predetermined shape, three skin pieces 1 to 3 that form the back surface portion from the inside of the perforated portion V are taken out (see FIG. 3). As illustrated, each of the skin pieces 1 to 3 has a shape in which the portion corresponding to the perforated portion V is narrow and the portion corresponding to the back portion is wide.
Then, the side edges of the adjacent skin pieces 2 are overlapped with one side edge of the skin piece 1 so that the design surfaces face each other, and the side edge portions are stitched (FIG. 4). Reference S₁ Indicates the seam. Similarly, the side edge of the adjacent skin piece 3 is overlapped with the other side edge of the skin piece 1, and the side edge portion is joined by the sewing thread t. Reference S₂ Is a stitch by the sewing thread t.
There are many types of formation of seams, and there is no particular limitation, but all the sewing forms between the skin pieces according to the present embodiment adopt the main stitch specification.
[0012]
Thereafter, the design surfaces I of the above-described skin pieces 1 to 3 and the design surface I of the separately prepared horseshoe-shaped skin piece 6 are overlapped with each other so as to face each other. Then, the inner peripheral edge is sewn to the stitch S_Three Form. In this way, the epidermis H as shown in FIG. 5 is formed.
The horseshoe-shaped skin piece 6 is literally substantially horseshoe-shaped, and the skin piece 4 connecting the notched portions 61 and 61 at the lower end of the side edge is stitched to form an annular shape, thereby constituting the front side portion of the headrest.
[0013]
On the other hand, skin pieces 4 and 5 that connect both sides of the inner lower edge portion d of the skin body H are prepared (FIG. 8). The epidermis piece 4 is sewn to the horseshoe-shaped epidermis piece 6 to form the front portion of the headrest, and the epidermis piece 5 is sewn to the epidermis pieces 2, 3 and 4 to form the back portion from the perforated inner peripheral portion.
The design surfaces on the corresponding side edges of the skin pieces 4 and 5 are overlapped with each other, and the overlapped peripheral portions are stitched. Stitch S by the stitching_Five Is formed.
[0014]
Subsequently, the inner lower edge portion d of the epidermis H and the design surfaces of the corresponding side edges of the epidermis pieces 4 and 5 are overlapped, and the one end edge of the epidermis pieces 4 and 5 and the epidermis H are stitched together. Reference S₆ Indicates a stitch by such stitching.
Then, the core body portion 82 of the insert 8 is incorporated with the epidermis body H turned upside down as shown in FIG. 5, and this is wrapped around each of the epidermis pieces 1 to 3, and the edge b thereof is the outer peripheral edge of the horseshoe-shaped epidermis piece 6 The portion 62 is overlaid so that the design surfaces face each other. By stitching the overlapping peripheral portions, the stitches S_Four Make. Thereafter, it is turned upside down to obtain a horseshoe-shaped cylindrical epidermis D into which the insert 8 as shown in FIG. 9 is incorporated.
Reference symbol O denotes a hollow portion, which corresponds to the upper half portion of the annular hollow portion in which the insert 8 is embedded and the foam-molded body integrated with the skin is enclosed.
[0015]
Next, the other edge of the skin pieces 4 and 5 and the other inner lower edge portion d of the skin body H are stitched together (FIG. 10). Reference S₇ Indicates the seam. Here too, the inner lower edge portion d and the design surfaces of the corresponding side edges of the skin pieces 4 and 5 are overlapped with each other and are sewn together with the skin back surface R of the portion facing outward.
In this way, the epidermis main part G in which only the epidermis surface part 7 as shown in FIG. 11 is insufficient is formed. The core portion 82 of the insert 8 is covered by the skin main portion G, but the lower surface opening peripheral edge g is turned up and the skin back surface R is directed outward.
[0016]
By the way, while completing the above-mentioned epidermis main part G, the three epidermis pieces 7a-7c used as the epidermis surface part 7 are prepared (FIG. 6).
In both skin pieces 7a and 7b, central portions 71 and 72 of opposing edges protrude in a rectangular shape. In addition, half holes 731 for stay holes 73 through which both stay portions are inserted are provided at the left and right positions on the opposing edges of the skin pieces 7b and 7c.
[0017]
A pretreatment is performed on the epidermis surface portion 7. First, the central portions 71 and 72 are overlapped so that the design surfaces of the skin pieces 7a and 7b face each other. Both ends of the opposite edge are sewn together to form a small skin piece 7d so that the seam allowance f appears on the back side of the skin (FIG. 7). The upper edges of the central portions 71 and 72 are left unconnected, and L-shaped stitches α are formed on both side edges. In the present embodiment, the upper edges of the central portions 71 and 72 are also formed. The stitches β are formed by partially sewing. The remaining upper edge opening serves as a foaming material inlet 75.
The skin pieces 7b and 7c are not yet sewn at this stage. In FIG. 7, symbol f is a seam allowance for stitching the skin pieces 7b and 7c, and symbols ξ and η, when the headrest skin A is completed, enter into the slit 74 and come into contact with each other to inject foam raw material. Shows a tongue that sometimes prevents leakage.
[0018]
Here, the epicutaneous surface portion 7 as shown in FIGS. 6 and 7 is used in this embodiment, but instead, the epicutaneous surface portion 7 as shown in FIGS. 13 and 15 can be prepared.
FIG. 13 does not sew together the skin pieces 7a and 7b of FIG. 6, but cuts one piece of skin piece 7e into the size of the skin pieces 7a and 7b. The injection hole 77 of the skin piece 7e is a circular hole that fits an injection nozzle (not shown) for foaming material. Further, a male clip (or fastener) k as shown in FIG. 14 is formed on the opposite edge of the slit 74 formed by the skin pieces 7c and 7e.₁ And female clip (or fastener)₂ And the slit 74 is closed by fitting the two. The portion of the seam allowance f for sewing the skin pieces 7c and 7e shown in FIG. 13 may also be a clip or a fastener. In this case, the clips, fasteners, etc. are regarded as sutures.
FIG. 15 shows a case where a tongue piece 78 made of the same material is separately and independently prepared in addition to the small skin pieces 7 a to 7 c of the present embodiment, and the tongue piece 78 is located on the side far from the injection port 75. That is, it is sutured to the epidermis piece 7c. Reference S₁₁Indicates the seam. The tongue piece 78 has a lateral width substantially equal to the length of the slit 74, and forms a projecting portion 782 projecting on both sides via a constricted portion 781 at the tip portion. The constricted portion 781 is formed narrower than the injection port 75 narrowed by the seam β, and the overhanging portion 782 is formed wider than the injection port 75. Then, when the overhanging portion 782 is folded and the tongue piece 78 is inserted into the injection port 75, the overhanging portion 782 passes through the slit 74 and simultaneously expands in the cavity O (FIG. 16).
The subepidermal surface portion 7 as shown in FIGS. 13 and 15 is more preferable because the mouth of the slit 74 can be reliably closed during foam molding, as will be described later.
[0019]
When the epidermis pieces 7c, 7d of the epidermis surface portion 7 and the epidermis main part G are aligned, these are then sewn together. As shown in FIG. 11, the skin pieces 7c and 7d are applied from the bottom to the skin main part G with the lower surface opening on the top. The skin pieces 7c and 7d and the design surface of the skin main part G are opposed to each other, and the skin pieces 7c and 7d are applied to the stay portion 81 while being sandwiched from both sides. The half holes 731 of the skin small pieces 7 c and 7 d surround the stay portion 81. And the lower surface opening periphery g of the skin main part G and the corresponding periphery of each skin piece 7c, 7d are made to correspond, and both are stitched together. In addition, the skin pieces 7c and 7d are stitched together, leaving the slit 74 connecting the stay holes. Thus, the epidermis surface portion 7 and the annular cylinder A are formed. In FIG. 12, the epidermis surface portion 7 is positioned below the lower surface opening peripheral edge g with the stay portion 81 inserted through the slit 74. The epicutaneous surface portion 7 is open at the slit 74 between the stay portions.
Here, since the outer skin pieces 7c and 7d are applied while being sandwiched by the stay portion 81 from both sides, the distance W between the stay portions.₂ Width W of the core body part 82₁ Even if the insert 8 is larger, the epidermis surface portion 7 can be attached to the epidermis main portion G without being obstructed by the core portion 82. In addition, the lower surface opening peripheral edge g of the epidermis main portion G is turned up and the epidermis back surface R is directed outward, so that the epidermis main portion G and the epidermis small pieces 7c, 7d (subcutaneous surface portion 7) of the epidermis back surface R It can be sewn in such a way that it can be easily turned outward. Reference S in FIG.₉ Indicates this seam. By such stitching, an annular cylinder, that is, a headrest skin A is completed.
[0020]
As described above, the tubular body, that is, the headrest epidermis A is completed by stitching the epidermal surface portion 7 to the epidermis main portion G. However, at this stage, the headrest skin A is still partially turned over.
Therefore, finally, a force as indicated by an outlined arrow in FIG. 12 is applied, and the epidermis main portion G and the epidermis back surface R of the epidermis surface portion 7 are pushed into the annular cylinder to turn it upside down. When such an operation is performed, a desired headrest skin A as shown in FIG.
The headrest as a product is completed by injecting foaming raw material from the injection port 75 and integrally molding the skin.
[0021]
By the way, when using the epidermal surface portion 7 as shown in FIG.₁ , K₂ If the slit 74 is closed, the foaming raw material at the time of molding is prevented from leaking out of the slit, which is preferable.
Further, when the tongue piece 78 is stitched to the skin piece 7c, the tongue piece is bent so that the overhanging portion 782 passes through the slit 74 and expands in the cavity portion O, and then the foaming raw material is injected and the skin integral molding is performed. If it does, since the slit 74 is covered with the tongue piece 78, the leakage of the foaming raw material from a slit can be prevented, and it becomes suitable. In FIG. 16, the tongue piece 78 is drawn in a state of being lifted with respect to the skin piece 7b in order to make the positional relationship easy to understand. However, in practice, the constricted portion 781 is sandwiched between the injection ports 75 narrowed by the seams β, and the tongue piece 78 is foam-molded in a state of being in close contact with the skin piece 7b, and is in a good-looking state.
[0022]
According to the method for manufacturing the headrest skin configured as described above, the headrest skin A can be finished by incorporating the insert 8 without providing any seam allowance f on the design surface side. All the stitches are sewn together so that the skin back R of each skin piece (or horseshoe-shaped skin piece, skin piece) that is sewn is directed outwards, so that the periphery is sewn, so a general-purpose machine without using a special machine It becomes possible by the sewing method using. In other words, the stitching between the opposing portions is maintained in a planar state at the time of joining, so that the stitching operation is easy, and can be easily and quickly made up by sewing with a general-purpose machine. Thus, the inconvenience of the seam allowance seen in Japanese Patent Publication No. 3-69683 is solved. The seam allowance f relating to the joint portion does not appear on the design surface I of the skin that has been turned over, so that the appearance is good and the quality is excellent.
Further, even in the insert 8 having the annular core part 82, the annular cylindrical skin is made while incorporating the core part 82, so that the core part 82 is neatly accommodated in the completed headrest skin. be able to. Since the annular core part 82 can be adopted, the headrest is stable and strong against impacts as a whole. The restriction of the annular core 82 that can be easily cleared against internal collisions, static loads, and front / rear impacts is eliminated, while the restrictions found in Japanese Patent Application Laid-Open No. 9-70837, etc., where only a U-shaped insert can be used. Can be used and is beneficial.
Then, while the two divided skin pieces 7c and 7d are sandwiched by the stay portion 81 from both sides, the corresponding peripheral edge of each skin piece 7c (or 7d) is placed on the lower surface opening peripheral edge g of the main skin part G. The distance between the stays is W₂ Width W of the core body part 82₁ Can easily handle even large inserts 8. For example, in the previous application of the present applicant (Japanese Patent Application No. 9-93218), the epicutaneous surface portion 7 completed using the slit 74 must be fitted into the epidermis main portion G covering the core portion 82. The distance W between both stays₂ Width W of the core body part 82₁ However, it was impossible to use a large insert 8. In the perforated headrest skin according to the present invention, the core width W₂ More distance W₁ Since both the side portions 81 are sandwiched by the small skin pieces 7c and 7d from both sides, there is no need to use the slits 74 and the restriction is removed. The degree of freedom of selection of the insert 8 is increased, and any holed headrest suitable for the vehicle type can be manufactured, which is further improved in terms of functionality, design, stable attachment, and the like. Of course, since the skin can be integrally molded, there is no work by the so-called post-covering method in which the skin is covered with the foam molded body after foam molding, and the skin and foam molded body are integrated so that the skin does not wrinkle. Achieve labor savings and produce high quality products.
[0023]
In addition, in this invention, it is not restricted to what is shown to the said embodiment, According to the objective and a use, it can change variously in the range of this invention. The shape, size, material, and the like of the skin pieces 1 to 5, the horseshoe-shaped skin piece 6, the skin pieces 7a to 7c, the insert 8 and the like can be appropriately selected according to the purpose. In the embodiment, the coupling between the skin pieces and the coupling between the epidermis main part G and the epidermis surface part 7 depend on the sewing, but it may depend on adhesive bonding or heating coupling such as high frequency and ultrasonic waves. The number of the skin pieces 1 to 6, the skin piece 7 and the like can be increased or decreased depending on the application. In the embodiment, the skin pieces 7a, 7b are sewn before attaching to the skin main part G to form the skin pieces 7d. However, both skin pieces 7a, 7b may be sewn to the skin main part G individually. Further, the skin pieces 1 to 5, the horseshoe-shaped skin pieces 6, and the skin pieces 7a to 7c are not limited to the fabric skin, but may be replaced with a slush molded skin or a blow molded skin. Of course, partial replacement is also possible.
[0024]
【The invention's effect】
As described above, the method for manufacturing a skin for a perforated headrest according to the present invention can be finished by incorporating an insert having an annular core part, and the width of the core part is large with respect to the distance between both stay parts. The shape insert can be used, and even with a general-purpose machine, the seam allowance does not come out, and all the joints such as the seam allowance are arranged on the back side of the skin. It is extremely excellent and useful.
[Brief description of the drawings]
FIG. 1 is a perspective view of a perforated headrest skin according to an embodiment of the present invention.
FIG. 2 is a perspective view of an insert.
FIG. 3 is a perspective view of three skin pieces partially constituting the headrest skin.
4 is a perspective view in which the skin piece of FIG. 3 is stitched. FIG.
FIG. 5 is a perspective view of an epidermis body in which a horseshoe-shaped epidermis piece is sewn to the sewn epidermis piece of FIG. 4;
FIG. 6 is a plan view of an epidermis piece constituting the epidermis surface portion.
7 is a perspective view of an epidermis surface portion formed by stitching the epidermis pieces of FIG. 6. FIG.
8 is a perspective view of an epidermis piece that forms a lower cylindrical portion of the headrest epidermis from the epidermis of FIG. 5 to the main epidermis. FIG.
9 is a perspective view of the horseshoe-shaped cylindrical epidermis formed by incorporating the insert after the epidermis of FIG. 8 is attached to the epidermis of FIG.
10 is a perspective view of a state in which an epidermis piece forming the lower cylindrical portion of the headrest epidermis is stitched to the cylindrical epidermis of FIG. 9. FIG.
FIG. 11 is a perspective view of a state in which the main part of the epidermis is completed after the suturing shown in FIG. 10 is completed and the epidermis surface part is attached thereto.
FIG. 12 is a perspective view of a headrest epidermis which is an annular cylinder body by stitching together the peripheral edge of the lower surface opening of the main skin part and the peripheral edge of the epidermis surface part.
13 is a plan view of the epidermal surface portion of FIGS. 6 and 7 and another embodiment of the epidermal surface portion. FIG.
14 is a view taken in the direction of arrows IV-IV in FIG. 13;
15 is a plan view of the skin piece of FIG. 6 and another form of skin piece. FIG.
16 is a partial cross-sectional view of the epidermis surface portion produced in FIG. 15;
[Explanation of symbols]
  1,2,3 skin pieces (sewn skin pieces)
  4,5 epidermis (skin piece connecting both sides of the inner lower edge of the epidermis)
  7 Subcutaneous surface
  74 slits
  79
  8 Insert
  81 Stay section
  82 Core part
  A Skin for perforated headrest
  D Tubular epidermis
  d Inner lower edge part
  G Main part of epidermis
  g Bottom opening edge
  H epidermis
  I Design side
  R The back of the skinsurface
  7a, 7b, 7c, 7d, 7e Skin pieces

Claims (2)

In the manufacturing method of the perforated headrest skin covering the core body part according to the insert comprising the stay part and the annular core body part,
While preparing a plurality of epidermis pieces divided and configured through both stay holes for the subepidermal surface part that becomes the lower surface of the headrest, the main part of the epidermis that is turned over and only the epidermis surface part is insufficient while incorporating the core part The lower skin opening peripheral edge of the skin main part covering and forming the core body part is turned up so that the skin back surface faces outward, and then the skin skin piece from below to the skin main part with the lower face opening up While the two skin pieces are sandwiched between the two sides of the stay part, the design surface of the skin main part and each skin piece are made to face each other and the corresponding peripheral edge of each skin piece is sewn to the lower surface opening periphery. In addition, the subepidermal surface portion is further formed by stitching the epidermis pieces while leaving the slits connecting the stay holes, and then the outer epidermis main portion and subepidermal surface portion that are exposed to the outside are formed. Skin backside pushing the annular cylinder body, the manufacturing method of the epidermal perforated headrests, characterized in that the table-back. The design surface of the horseshoe-shaped skin piece and the design surface of the stitched skin pieces are overlapped with each other so as to face each other, and a seam is formed on the inner peripheral edge thereof, and both the inner lower edge portions of the skin body are formed. One end surface of the skin piece connecting the side and one of the design surfaces of the inner lower edge portion are overlapped and stitched together, and the core body part is incorporated with the epidermis turned over, and then the horseshoe-shaped skin piece Overlay the edges of the stitched skin pieces on the outer peripheral edge so that the design surfaces face each other, stitch the overlapping peripheral edges, and then turn it upside down to form a horseshoe-shaped cylindrical skin that incorporates the insert. 2. The perforated headrest according to claim 1, wherein after that, the other end edge of the epidermis piece connecting the both sides of the inner lower edge portion of the epidermis body and the other inner lower edge portion are stitched to form the main part of the epidermis. Skin Manufacturing method.

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