JP2011110078A - Double layer umbrella - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a piece twisted fabric by facing coated faces each other and sewing the bottom edge parts, prevent the coated face from exposing, improve durability, and simplify cleaning. <P>SOLUTION: A double layer umbrella has: a cutting process A for cutting a sheet belt-like body 3 forming a coated face 2 into approximately isosceles triangle shapes to form large and small sheet bodies 4 and 5; a piece sewing process B for double-plying a piece twisted fabric 6 by superimposing the large and small sheet bodies 4 and 5 to face the coated face 2 each other and by sewing the bottom edges 4a and 5a together; an embroidery process C for embroidering the large and small sheet bodies 4 and 5 to the piece sewing fabric 6 in the closely contacted state; and an umbrella fabric sewing process E for forming umbrella fabrics 9, where the part 9a sewn together with one piece twisted fabric 6 and other fabric 6 is curved, by facing the one piece twisted fabric 6 and another adjacent piece twisted fabric 6 to the large sheet body 4 to roll in the side edges 6b and 6b for sewing with a folded seam allowance 7 together and by sewing the seam allowance 7 along a curved sheet contacting body 8 by a sewing machine. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a double umbrella having double umbrellas and a double umbrella.

Conventionally, a double-structured umbrella with embroidery is known.
This umbrella has a double structure in which a lower surface exactly the same size as the upper surface is superimposed on the lower side of the upper surface subjected to embroidery (see Patent Document 1).

Registered Utility Model No. 3149410

The conventional umbrella has a structure in which the outer peripheral edge of each of the upper surface and the lower surface is not sewn, and the upper and lower surfaces are exposed to the outside from the outer peripheral edge on the inner sides facing each other. There is a problem that the inside of the surface is damaged.
In addition, dust or dust tends to accumulate between the upper surface and the lower surface.
In view of these points, the double umbrella manufacturing method according to the present invention includes a cutting step of cutting and forming a sheet body, and a piece that forms a piece fabric by facing the coating surface and sewing the bottom edge portion. Sewing process, embroidery process for embroidering the piece fabric, correction process for correcting the positional deviation of the piece fabric, and forming an umbrella that is sewn along the sheet abutment body along the seam allowance of the side edge of the piece fabric By having an umbrella stitching process to perform and an inspection process to inspect the umbrella, the coating surfaces inside the large and small sheet bodies are not exposed. It aims at providing the manufacturing method of the double umbrella which aimed at simplification of cleaning.

  In addition, the double umbrella according to the present invention forms a piece fabric by facing the coating surfaces of large and small sheet bodies and stitching the bottom edge portions, so that the bottom edge portions are in close contact with each other and the coating surfaces inside the large and small sheet bodies Therefore, it is an object of the present invention to provide a method for manufacturing a double umbrella that improves durability by preventing scratches due to rubbing between coating surfaces or mixing of foreign matters, and simplifies cleaning.

In order to achieve the above object, the present invention employs the following technical means.
The manufacturing method of the double umbrella 1 according to the present invention includes a cutting step A in which a sheet band 3 having a coating surface 2 formed on one side is cut into a substantially isosceles triangle to form large and small sheet bodies 4 and 5. ,
A piece stitching step B in which the large and small sheet bodies 4 and 5 are overlapped so that the coating surfaces 2 face each other and the bottom edge portions 4a and 5a are stitched together to form the piece fabric 6 in a double tension;
An embroidery process C for embroidering the piece fabric 6 with the large and small sheet bodies 4 and 5 being in close contact with each other;
A correction step D for correcting the displacement of the large and small sheet bodies 4 and 5 in the piece fabric 6;
One piece cloth 6 and another piece piece 6 adjacent to each other are sewn together with a seam 7 that is folded back with the large sheet bodies 4 facing each other and the side edges 6b and 6b are wound around each other. Umbrella stitching step E in which the stitching portion 9a of the one piece fabric 6 and the other piece fabric 6 forms a curved umbrella 9 by sewing in a state along the curved sheet contact body 8; ,
And an inspection process F for inspecting the wrinkles and twists of the umbrella 9.

  With this feature, the cutting process A in which the large and small sheet bodies 4 and 5 are formed by cutting, the coating surface 2 of the large and small sheet bodies 4 and 5 are faced to each other, and the bottom edges 4a and 5a are sewn together to form the piece fabric 6. The piece sewing step B to be formed, the embroidery step C for embroidering the piece fabric 6, the correction step D for correcting the positional deviation of the piece fabric 6, and the side edge portions 6b and 6b of the piece fabric 6 are wound around and folded back. Large and small sheets in close contact with each other by having an umbrella sewing process E for forming an umbrella 9 that is sewn along a sheet abutting body 8 that has a seam allowance 7 curved, and an inspection process F for inspecting the umbrella 9. The piece fabric 6 can be formed twice without exposing the coating surface 2 inside the bodies 4 and 5.

  Therefore, since the coating surfaces 2 are in close contact with each other, the large and small sheet bodies 4 and 5 are prevented from being displaced and the coating surfaces 2 are not rubbed with each other. As a result, the durability is improved by preventing scratches or the like caused by a pointed member or the like, and at the same time, dust and dirt are less likely to be accumulated inside the large and small sheet bodies 4 and 5, so that the cleaning becomes easy and the work load can be reduced.

A double umbrella 1 according to the present invention is a double umbrella including an umbrella 9 in which a plurality of double piece fabrics 6 are stitched together.
The piece fabric 6 has a substantially isosceles triangle shape, and large and small sheet bodies 4 and 5 each having a coating surface 2 formed on one surface are overlapped with the coating surfaces 2 facing each other, and each bottom edge 4a. 5a is stitched together to form a double tension.

The piece fabric 6 is characterized in that embroidery is applied in a state where the large and small sheet bodies 4, 5 are in close contact with each other.
Further, the umbrella 9 has a seam allowance 7 in which one piece cloth 6 and another piece piece 6 adjacent to each other face the large sheet bodies 4 and wrap around the side edges 6b and 6b. When the sewing allowance 7 is sewn in a state along the curved sheet contact body 8, the seam portion 9 a between the one piece fabric 6 and the other piece fabric 6 is formed in a curved shape. It is characterized by that.

  By these features, the coating surfaces 2 of the large and small sheet bodies 4 and 5 face each other and overlap each other, and the bottom edge portions 4a and 5a are stitched together to form the piece fabric 6 in a double tension. For this reason, the large and small sheet bodies 4 and 5 can be displaced to prevent rubbing between the coating surfaces 2. Further, since the coating surface 2 is not exposed to the outside, durability is improved by preventing scratches caused by foreign matter mixing, scratches caused by a nail or a pointed member, etc., and dust between the sheet bodies 4 and 5 can be prevented. Since dust does not collect easily, cleaning work can be simplified.

Further, by embroidering the piece fabric 6 in a state where the large and small sheet bodies 4 and 5 are in close contact with each other, the stitching strength of both the sheet bodies 4 and 5 is increased, and the two sheet bodies 4 and 5 are integrated into a single piece. It can be handled as the fabric 6, and the burden of sewing work on the umbrella 9 can be reduced.
Further, the seam 7 that is folded back by winding the side edges 6b, 6b of the adjacent piece fabrics 6 is sewn along the sheet abutting body 8 to form a stitched portion 9a of the umbrella 9 in a curved shape. Thus, the umbrella 9 can be sewn into a substantially hemispherical shape, and can be attached to the umbrella bone without wrinkles and twists as much as possible.

  According to the method for manufacturing a double umbrella and the double umbrella according to the present invention, the coating surfaces of the large and small sheet bodies are overlapped to face each other and the bottom edges are sewn together to form the piece fabric in a double tension, whereby the coating surface is formed. It is not exposed, and the durability is improved by preventing scratches due to coating surfaces from being rubbed or mixed with foreign matters, and at the same time, dust and dust are prevented from accumulating between the sheet bodies, thereby simplifying cleaning.

It is a perspective view which shows the umbrella stitching process of the manufacturing method of the double umbrella which concerns on this invention. It is a top view which shows the cutting process of the manufacturing method of a double umbrella, a piece sewing process, and an embroidery process. It is a perspective view which shows the cutting process of the manufacturing method of a double umbrella. It is a perspective view of the double umbrella which concerns on this invention. It is the sectional view on the AA line in FIG. 4 of a double umbrella.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
4 and 5, the double umbrella 1 according to the present invention includes a cutting step A for cutting to form sheet bodies 4 and 5, a piece by facing the coating surface 2 and sewing the bottom edges 4a and 5a. A piece sewing step B for forming the fabric 6, an embroidery step C for embroidering the piece fabric 6, a correction step D for correcting the positional deviation of the piece fabric 6, and a seam allowance 7 of the side edge 6b of the piece fabric 6 are seated. By the manufacturing method of the double umbrella 1 according to the present invention, which has an umbrella stitching process E for forming the umbrella 9 sewn along the contact body 8 and an inspection process F for inspecting the umbrella 9. It is manufactured.

As shown in FIG. 4, the double umbrella 1 includes a handle 10 having a grip 10 a at the lower end, a plurality of main bones 11 (eight in the present invention) pivotally supported at the tip of the handle 10, A rocker 12 fitted to the handle 10 so as to be slidable in the vertical direction, a support bone 13 having one end pivotally supported by the rocker 12 and the other end pivotally supported by the master bone 11, and stretched on the master bone 11. Umbrella 9 is provided.
The double umbrella 1 is configured such that the main bone 11 is opened and closed by expanding and contracting via the support bone 13 by moving the rocker 12 up and down.

The umbrella 9 does not necessarily have to be embroidered, and the sewing allowance 7 does not have to be machined along the sheet contact body 8.
Umbrella 9 is formed by sewing a plurality of pieces (eight in the present invention) of approximately isosceles triangular piece fabrics 6, and each piece fabric 6 is formed by superposing large and small sheet bodies 4, 5 having a substantially isosceles triangle shape. It is formed double, that is, double stretched. Both the sheet bodies 4 and 5 are created by the cutting process A.

As shown in FIGS. 2A to 2D, in the cutting process A, the large and small sheet bodies 4 and 5 are formed by cutting the sheet strip 3 on which the coating surface 2 is formed.
The sheet strip 3 is a long strip, and has a coating surface 2 on one side.
The coating surface 2 is provided, for example, for improving the strength of the umbrella 9, providing a water repellent effect, or for preventing ultraviolet rays. When the coating surface 2 is used for preventing ultraviolet rays, it is formed by applying a mixture of ceramic ultrafine particles in a resin, or kneading aluminum ultrafine particles into a polyester yarn.

The large and small sheet bodies 4 and 5 are formed by unrolling the rolled sheet strip 3 and spreading it on a table. 3 and is cut by cutting along these padding molds 21 with a blade (see FIG. 3).
The pad 21 for the lining (the inner surface of the umbrella 9 when stretched) is the size used for a normal single umbrella, but the pad 21 for the outer surface (the outer surface of the umbrella 9 when stretched) is Further, it is formed larger by a predetermined distance (in the present invention, about 2.5 mm) to the left and right outer sides (outside the outer edges) than the backing mold 21. In addition, this predetermined distance should just be 1.5 mm or more and 3.5 mm or less.

As shown in FIG. 2 (e), in the piece sewing step B, the large and small sheet bodies 4, 5 formed in the cutting step A are overlapped so that the coating surfaces 2 face each other, and the bottom edges 4a, 5a are stitched together. As a result, the piece fabric 6 is formed.
Since the piece fabric 6 is overlapped with the coating surface 2 facing each other, the coating surface 2 is sandwiched between the sheet bodies 4 and 5. The piece fabric 6 is overlapped with the center lines between the left and right side edges of the large and small sheet bodies 4 and 5 aligned and the bottom edges aligned. At this time, the large sheet body 4 protrudes from the small sheet body 5 outwardly on both side edges by the predetermined distance. Even if the large sheet body 4 is used as the outside and the umbrella fabric 9 is curvedly stretched around the main bone 11 by the protruding bending margin 6c, a large hemispherical umbrella is not applied to the outer side of the piece fabric 6. A ground 9 can be formed.

In this state, the bottom edge portion 4a of the large sheet body 4 and the bottom edge portion 5a of the small sheet body 5 are sewn together (sewn with a sewing thread) 22 so that one piece fabric 6 is formed in a double tension. .
As shown in FIG. 2 (f), in the embroidery process C, embroidery is applied to the piece fabric 6 that is double-stretched in the piece sewing process B.
When the piece fabric 6 is embroidered, the back side (small sheet body 5 side) is fixed to an embroidery stand of an embroidery machine (not shown). The embroidery table is provided with a fixing means such as a double-sided tape set in accordance with the outer peripheral shape of the small sheet body 5, and the small sheet body 5 of the piece fabric 6 is placed along the outer shape of the fixing means. .

That is, the piece fabric 6 is fixed to the embroidery machine with the large and small sheet bodies 4 and 5 being in close contact with each other. In this fixed state, the piece fabric 6 is embroidered by the embroidery thread 23 with the sheet bodies 4 and 5 integrated.
Thereby, the adhesion degree of the two sheet bodies 4 and 5 increases, and the coating surface 2 of the large and small sheet bodies 4 and 5 is not exposed to the outside from the bottom edge portion 6 a of the piece cloth 6.

Accordingly, the stitching strength of the large and small sheet bodies 4 and 5 can be increased, and at the same time, the two sheet bodies 4 and 5 can be handled as an integral piece fabric 6, and the umbrella fabric 9 is sewn together. The work load of the sewing process E can be reduced.
An embroidery (bottom edge embroidery) 6 d of the bottom edge 6 a of the piece fabric 6 is provided on the apex side of the sewing thread 22.

In the correction process D (not shown), the piece fabric 6 embroidered in the embroidery process C is not misaligned between the large and small sheet bodies 4 and 5, and the left and right bending margins after the embroidery process C are also determined. It is confirmed whether the part 6c is a predetermined width.
If the position between the sheet bodies 4 and 5 and the predetermined width of the bending margin 6c are shifted, the backing mold 21 is applied, and the protruding portion and the shifted portion are cut off to form the piece fabric 6 Make corrections.

As shown in FIG. 1, in the umbrella fabric sewing process E, first, among the plurality of piece fabrics 6 that have undergone the correction step D, one piece fabric 6 and another piece fabric 6 adjacent thereto are separated into a large sheet body 4. Overlap so that they face each other.
The two overlapped piece fabrics 6, 6 are aligned with the bottom edges and one side edges, and the aligned side edges 6b, 6b are rolled up and folded back. With the folded portion as the seam allowance 7, the two piece fabrics 6, 6 are sewn together by the sewing machine 24 at the side edge portions 6b, 6b, that is, they are machined.

A sheet abutment body 8 for winding the seam allowance 7 on the sewing machine base 24a of the sewing machine 24 and turning it back when the sewing machine is hooked is provided via a support 25 in a detachable manner.
The sheet contact body 8 has a tapered shape obtained by curving a substantially fan-shaped metal piece in a spiral shape, and is arranged so that the axial center direction of the spiral is substantially coincident with the cloth feeding direction of the sewing machine 24. The front end of the sheet contact body 8 is located in the vicinity of the upstream side in the cloth feeding direction with respect to the cloth presser 24b of the sewing machine 24.

The sheet abutting body 8 has an upstream end so that the side edge portions 6b, 6b of the two piece fabrics 6, 6 can advance while contacting the spiral inner surface from the upstream side to the downstream side in the cloth feeding direction. The downstream end and one side are open. The side edge portions 6b and 6b are wound by advancing in the sheet abutting body 8, and are turned back to form a seam allowance 7 when exiting from the downstream end opening.
Immediately after passing along the sheet contact body 8, the seam allowance 7 enters below the presser foot 24 b while being folded, and is sewn by the sewing thread 26.

The other side portion (swirl outer end portion) of the sheet contact body 8 is connected to one end portion of the support body 25.
The support 25 is a long metal piece, and is formed in a long and thin plate-like main body portion 25a placed on the upper surface of the sewing machine base 24a, and a longitudinally intermediate portion of the main body portion 25a along the longitudinal direction. And a cutout portion 25c cut out at the other end side from the long hole 25b.

The support body 25 is disposed on the sewing machine base 24 a so that the longitudinal direction of the main body portion 25 a is substantially orthogonal to the cloth feeding direction of the sewing machine 24. Further, the other end portion of the support body 25 is curved upward, and is easily attached and detached by gripping this curved portion.
The long hole 25b is formed so that a fixing tool 27 such as a screw that is screwed into the sewing machine base 24a can be inserted. The fixing tool 27 can tighten the support body 25 at an arbitrary position in the longitudinal direction of the long hole 25b. It is configured. Therefore, the support body 25 and the sheet contact body 8 can be positioned in a direction substantially orthogonal to the cloth feeding direction of the sewing machine 24.

The notch 25c can be engaged with a pin 24c erected from the upper surface of the sewing machine base 24a. By this engagement and the fixing device 27, two portions in the longitudinal direction of the support body 25 and the other end are provided. It will be fixed. Therefore, the sheet contact body 8 and the seam allowance 7 do not shift during sewing.
By sewing the seam allowances 7 of all the piece fabrics 6 as described above, an umbrella 9 in which the stitched portions 9a of the piece fabrics 6 are curved is formed.

That is, an umbrella 9 formed by stitching together a plurality of piece fabrics 6 is formed in a substantially hemispherical shape, and can be stretched around the main bone 11 while suppressing wrinkles and twisting.
In the inspection process F (not shown), the umbrellas 9 formed in the umbrella sewing process E are arranged on the inspection table (not shown), and wrinkles are not generated over the entire umbrella 9 or each piece fabric 6 Check for twists between each other.

As shown in FIG. 5, the umbrella 9 that has undergone the inspection process F is stretched around the main bone 11 to complete the double umbrella 1.
In addition, the umbrella 9 raises the seam allowance 7 with respect to the piece fabric 6, arrange | positions the main bone 11 along the raised seam allowance 7, and sews the seam allowance 7 and the main bone 11 with the stop thread 28 in several places, Tensioning to the main bone 11 is performed.

In the double umbrella 1 thus completed, the bottom edge portions 6a of the piece fabrics 6 are in close contact with each other, and the large and small sheet bodies 4 and 5 do not expose the coating surface 2 inside. By slipping, rubbing between the coating surfaces 2 can be prevented.
In addition, it is possible to prevent scratches caused by foreign matter mixed inside the large and small sheet bodies 4 and 5 and scratching, or scratching by a nail or a pointed member, etc., improving the durability of the umbrella 9 and the coating surface. 2 can last longer.

Furthermore, since dust and dust are difficult to enter from the bottom edge 6a of the piece fabric 6 to the space between the sheet bodies 4 and 5, cleaning becomes easy and the work load can be reduced.
The present invention is not limited to the embodiment described above. Each configuration of the double umbrella 1 or the like, or the overall structure, shape, dimensions, and the like can be appropriately changed in accordance with the spirit of the present invention.
In the piece stitching process B, the large and small sheet bodies 4 and 5 are sewn together at the bottom edge portions 4a and 5a, and the side edge portions 4b and 5b (that is, both the side edge portions 4b and 4b of the large sheet body 4 are small and small sheet bodies). 5 on both side edges 5b and 5b).

In the embroidery process C, the portion to be embroidered is at least the bottom edge 6a of the piece fabric 6, but may be embroidered over the entire piece fabric 6.
Further, after the bottom edge embroidery 6d is applied in the embroidery process C, the bottom edge portion 6a of the piece fabric 6 may be cut along the bottom edge embroidery 6d.
The number of piece fabrics 6 need not be eight, but may be 6, 7, 10, 12, 16, 24. Accordingly, the number of the main bones 11 and the supporting bones 13 may be 6, 7, 10, 12, 16, 24.

  The sheet contact body 8 is not formed by bending a metal piece in a tapered shape, and may be formed so that the thickness from the downstream end to the upstream end is substantially the same.

1 Double umbrella 2 Coating surface 3 Sheet belt 4 Sheet body (large)
4a Bottom edge of sheet body (large) 5 Sheet body (small)
5a Bottom edge portion of sheet body (small) 6 Piece fabric 6b Side edge portion of piece fabric 7 Sewing allowance 8 Seat contact body 9 Umbrella 9a Umbrella stitched portion A Cutting process B Piece sewing process C Embroidery process D Correction process E Umbrella sewing process F Inspection process

Claims (4)

A cutting step (A) of cutting the sheet strip (3) having the coating surface (2) on one side thereof into a substantially isosceles triangle to form large and small sheet bodies (4, 5);
A piece that overlaps the large and small sheet bodies (4, 5) so that the coating surfaces (2) face each other and sews the bottom edge portions (4a, 5a) to form the piece fabric (6) in a double tension. Sewing process (B);
An embroidery step (C) for embroidering the piece fabric (6) in a state where the large and small sheet bodies (4, 5) are in close contact with each other;
A correction step (D) for correcting a positional shift of the large and small sheet bodies (4, 5) in the piece fabric (6);
A seam allowance (7) in which one piece fabric (6) and the other piece fabric (6) adjacent to each other face the large sheet bodies (4) and wrap around the side edges (6b, 6b). ) And sewing the sewing allowance (7) in a state along the curved sheet contact body (8), so that the one piece fabric (6) and the other piece fabric (6) An umbrella stitching step (E) in which the stitched portion (9a) forms a curved umbrella (9);
A method for manufacturing a double umbrella, comprising: an inspection step (F) for inspecting wrinkles and twists of the umbrella (9). A double umbrella comprising an umbrella fabric (9) in which a plurality of double piece fabrics (6) are stitched together,
The piece fabric (6) has a substantially isosceles triangle shape, and a large and small sheet body (4, 5) having a coating surface (2) formed on one side thereof is overlapped with the coating surfaces (2) facing each other. And a double umbrella, wherein the bottom edges (4a, 5a) are stitched together to form a double stretch.   The double umbrella according to claim 2, wherein the piece fabric (6) is embroidered with the large and small sheet bodies (4, 5) in close contact with each other.   In the umbrella (9), one piece fabric (6) and the other piece fabric (6) adjacent to each other face the large sheet bodies (4) and side edge portions (6b, 6b). Is sewn with a seam allowance (7) folded back and the seam allowance (7) is machined in a state along the curved sheet abutting body (8), whereby the one piece fabric (6) The double umbrella according to claim 2 or 3, wherein a stitched portion (9a) between the knitted fabric and another piece fabric (6) is formed in a curved shape.