Integrated structure of umbrella cover and ribs

By attaching a ring to the fabric and sewing it to annular openings on the ribs, the integration of umbrella cover and ribs is enhanced, addressing the issues of loose fabric and misalignment in single-piece umbrellas, ensuring secure and seamless folding.

JP7866290B2Active Publication Date: 2026-05-27TOKYO MARUSO

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOKYO MARUSO
Filing Date
2021-10-20
Publication Date
2026-05-27

AI Technical Summary

Technical Problem

Conventional single-piece umbrellas face issues with the fabric becoming loose and fluttering when closed due to the absence of sewing seams, leading to improper folding, while adhesive bonding is unreliable and sewing only the ends results in misalignment and loss of seamless design.

Method used

A ring is attached to the underside of the umbrella fabric and sewn to a flat patch, with another portion sewn through annular openings on the ribs, integrating the cover and ribs securely.

Benefits of technology

This method strengthens the integration of the umbrella cover and ribs, preventing separation and maintaining a seamless appearance, suitable for single-piece umbrellas.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007866290000001
    Figure 0007866290000001
  • Figure 0007866290000002
    Figure 0007866290000002
  • Figure 0007866290000003
    Figure 0007866290000003
Patent Text Reader

Abstract

To provide an integral structure of an umbrella cover and a main rib, the structure that is applicable instead of a saddle stitch binding process of a general umbrella, and also is particularly suited for combination of the umbrella cover laminated in one-layer without a selvage and the main rib.SOLUTION: A flat patch with a portion of a ring being sewn thereto is bonded in a plane at an umbrella fabric place along a main rib of an umbrella fabric backside, and this ring and the main rib are connected through the through-hole provided at the main rib, and thereby the integration between the umbrella cover and the main rib is strengthened.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to an integral structure of an umbrella cover and a main rib, and particularly to an integral structure of an umbrella cover and a main rib suitable for a single-piece umbrella without ears sewn in a triangular piece stitch.

Background Art

[0002] In conventional ordinary umbrellas, as shown in FIG. 4, triangular pieces 20 obtained by cutting umbrella fabric into triangular shapes are sewn according to the number of main ribs 21 to form an umbrella cover 22. Then, ears 23 formed inside the umbrella by sewing the triangular pieces 10 are used as sewing margins, and the main ribs 21 are sewn to these sewing margins usually at two or three positions by an intermediate sewing process 24 to integrate the umbrella cover 22 and the main ribs 21 so that the main ribs 21 do not float. However, recently, single-piece umbrellas with seamless expressions such as the handle have become popular among consumers. In the case of a single-piece umbrella, since a single piece of fabric is stretched over the umbrella, the intermediate sewing process using a sewing seam becomes unnecessary. On the other hand, without the adhesion between the ribs and the fabric using a sewing seam, when the umbrella is closed, the fabric becomes loose and fluttering. Particularly in a folding umbrella where the fabric must be closed together when the umbrella is closed, the fabric not adhered to the ribs that can be closed floats, and there has been a problem that the umbrella cannot be folded properly. Therefore, in order to adhere the ribs and the fabric, for example, as shown in Patent Document 1, the main rib and the umbrella fabric are adhered with a bond, or as shown in FIG. 5, only the end portion of the umbrella fabric is cut to create the same ears 25 as those of a normal umbrella and sewn using them. However, the method of bonding the ribs and umbrella fabric with adhesive, as described above, has the drawback of coming apart after short-term use because there is no adhesive suitable for bonding dissimilar materials, such as resin or metal for the ribs and fiber for the fabric. Furthermore, the method of sewing only the ends of the umbrella fabric results in the handle being misaligned at the ends, negating the advantage of a single-piece fabric that allows for a seamless expression of the pattern and other details.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

[0004] This invention was made in view of the above-described circumstances, and in a single-piece umbrella in which the handle and other parts are expressed without seams, the ring as an independent component is , a part of the ring, The thread that passes through the ring is attached to the underside of the umbrella fabric. Tahei It is sewn onto a flat patch, A part of the aforementioned ring is different from Other parts 、 The purpose is to connect the umbrella cover to the main ribs by sewing it to the main ribs with thread that passes through the ring and the annular opening provided on the main rib. [Means for solving the problem]

[0005] In a single-piece umbrella where patterns and other details are expressed without seams, the ring as an independent component is A part of the ring The thread that passes through the ring is attached to the underside of the umbrella fabric. Tahei It is sewn onto a flat patch, A part of the aforementioned ring is different from The other parts are sewn to the ribs with thread that passes through ring-shaped openings and annular holes provided on the ribs, thereby integrating the umbrella cover with the ribs. [Effects of the Invention]

[0006] According to the integrated structure of the umbrella cover and ribs according to the present invention In a single-piece umbrella where patterns and other details are seamlessly expressed, the ring, as an independent component, is constructed such that a portion of the ring is sewn to a flat patch attached to the underside of the umbrella fabric with thread passing through the ring, while another portion, distinct from the aforementioned portion of the ring, is sewn to the rib with thread passing through the ring and an annular opening provided on the rib. This strengthens the integration of the umbrella cover and the rib, eliminating the issues seen in previous technologies where the rib lifts from the umbrella cover or the seams peel off, and provides a remarkable effect applicable to the combination of a single-piece umbrella cover and the rib. [Brief explanation of the drawing]

[0007] [Figure 1] This is a schematic plan view of the main parts illustrating an example of an integrated structure of umbrella cover and ribs according to the present invention. [Figure 2] This is a schematic perspective view of the main parts showing an example of an integrated structure of umbrella cover and ribs according to the present invention. [Figure 3]It is a schematic explanatory view showing a conventional middle binding using ears. [Figure 4] It is a schematic explanatory view showing a conventional middle binding using ears provided only at the end of the umbrella cover.

Best Mode for Carrying Out the Invention

[0008] For a one-piece umbrella in which the handle and the like are expressed seamlessly at The ring as an independent part , a part of the ring, Is pasted on the back side of the umbrella fabric by a thread passing through the inside of the ring Tahei Is sewn to the flat patch, and A part of the aforementioned ring is different from Another part 、 Is sewn to the main rib by a thread passing through the inside of the ring and the annular through-hole provided in the main rib, thereby strengthening the integration of the umbrella cover and the main rib.

Example 1

[0009] Hereinafter, an example in which the integrated structure 1 of the umbrella cover and the main rib of the present invention is applied to an automatic opening and closing folding umbrella will be described according to FIGS. 1 to 3. In FIG. 1, 2 is flat Is a flat patch, 3 is a ring as an independent part, the flat patch 2 is made of umbrella fabric of the same material as the umbrella cover fabric 4, and half of it is plane-joined and welded to the umbrella fabric 4a along the middle binding part 6 of the main rib 5 on the back side of the umbrella. Also, the ring 3 , part of the ring 3 Is pasted on the back side of the umbrella fabric by a thread passing through the inside of the ring Tahei Is sewn to the flat patch, and A part of the aforementioned ring 3 is different Another part is sewn to the main rib 5 by a thread 8 passing through the annular through-holes 7a and 7b provided in the ring 3 and the main rib 5. As shown in FIG. 3, it is similarly installed at an arbitrary position of the main rib as needed. In this case, since the flat patch 2 is made of umbrella fabric of the same material as the umbrella cover fabric 4, the adhesive is more compatible with different materials Furthermore, because it is a planar joint, it can be firmly joined together and has more than enough strength to integrate the main ribs 5 and the umbrella cover fabric 4, thus eliminating the problem of the main ribs and umbrella cover fabric separating due to wind pressure or deterioration over time.

[0010] In addition, as shown in the above example Tari The shape of the ring is not limited to the example Kuri As long as it has a ring, various shapes can be selected. A component having a plurality of rings may be used. Also, although the material of the flat patch was the same umbrella fabric as the umbrella cover as the umbrella fabric, it is of course not limited to this. In Example 1, two annular through-holes provided in pairs on both sides of the main rib were used, but only one annular through-hole may be used, or two annular through-holes may be arranged side by side on the same side of the main rib. The number of annular through-holes is not limited as long as it can be connected to the ring. Furthermore, of course, the positions where the present invention is applied to the main rib may be arbitrary positions and numbers depending on the type, size, etc. of the umbrella.

Industrial Applicability

[0011] For a single-piece umbrella in which the handle etc. is expressed without seams at , The ring, as an independent component, is constructed such that a portion of the ring is sewn to a flat patch attached to the underside of the umbrella fabric by thread passing through the ring, and another portion of the ring, different from the aforementioned portion, is sewn to the rib by thread passing through the ring and an annular opening provided on the rib. the umbrella cover and the main rib of can be firmly integrated, the main rib does not float from the umbrella cover, and the seam allowance does not peel off, and a remarkable effect suitable for the combination of the seamless single-piece umbrella cover and the main rib that has been recently popularized is obtained.

Explanation of Signs

[0012] 1 Integrated structure of the umbrella cover and the main rib shown in Example 1 2 Flat patch 3 Ring 4 Umbrella cover fabric 5 Main rib 6 Intermediate stitching part 7a Annular through-hole 7b Annular through-hole 8 Sewing thread 21 Triangular piece 22 Main rib 23 Ear 24 Sewing stop part 25 Ear

Claims

[Claim 1] In a single-piece umbrella where patterns and other designs are seamlessly expressed, the ring, as an independent component, is characterized in that a part of the ring is sewn to a flat patch attached to the underside of the umbrella fabric with a thread that passes through the inside of the ring, and another part of the ring, different from the aforementioned part, is sewn to the rib with a thread that passes through the inside of the ring and an annular opening provided on the rib, thereby connecting the umbrella cover and the rib.