Umbrella Structure

Abstract

To provide an umbrella structure allowing an umbrella fabric, a ferrule and a middle rod to be firmly assembled via a patch in a completely single sheet without a hole for the ferrule on the umbrella fabric.SOLUTION: An umbrella structure includes: an umbrella fabric; a ferrule; a middle rod having a female screw screwed to a male screw of the ferrule and engraved in the inner surface; and a flat patch in which a hole into which the male screw of the ferrule is penetrated is disposed in the center. The male screw of the ferrule is penetrated into the hole of the patch and screwed to the female screw of the middle rod via a rosette, a peripheral part of the patch excluding a part contacting a ferrule head side lateral surface, and a part contacting the rosette is planarly adhered and joined to an inner surface of the umbrella fabric, and an adhesion area of the peripheral part of the patch to the inner surface of the umbrella fabric is widened so as to increase adhesive strength and hardly cause peeling. Due to that the central part excluding the peripheral part of the patch is arranged between the ferrule and the middle rod, and the ferrule is not directly bonded to the umbrella fabric, the ferrule is movable with a screw only by itself, and relative to upper / lower and left / right positioning of a single sheet with patterns, the umbrella fabric and the ferrule are joined with screws after the positioning in the same way as a general umbrella so as to facilitate positioning work.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a novel umbrella structure, and in particular to an umbrella structure suitable for a single-panel umbrella. [Background technology]

[0002] Recently, single-ply umbrellas have become popular due to the advantages of having no seams, eliminating the worry of rain leaking in, and allowing seamless display of umbrella patterns. However, the basic structure of an umbrella, as shown in Figures 4 and 5, has traditionally been such that the ferrule 15 and chrysanthemum seat 16 at the tip of the umbrella hold down the umbrella fabric 17, attaching the umbrella fabric 17 to an umbrella frame such as a wheel 18. Therefore, a hole 19 is drilled in the center of the umbrella fabric 17 corresponding to the ferrule 15 and chrysanthemum seat 16. Therefore, even though it is a single-ply umbrella, the ferrule 15 appears in the center of the umbrella surface, detracting from the uniform aesthetic of the design reflected in the umbrella fabric (in this example, a photo of a dog), and there are problems with both appearance and structure that make it difficult to call it a completely single-ply umbrella. In order to solve this problem, the inventor previously proposed a technical means in Utility Model Registration No. 3225893, in which a male or female screw is attached to the back side of the central part of the umbrella fabric, and a female or male screw that fits into this screw part is arranged on the frame side. However, if the adhesive strength between the back side of the central part of the umbrella fabric and the screw head is weak, there is a risk of separation, and the work process using the male screw is troublesome and costly. Furthermore, as shown in Figure 6, Male thread The top surface is glued together, but if the adhesive strength between the back side of the center of the umbrella fabric and the screw head is weak, there is a risk of separation. In addition, the process of using male screws is troublesome and costly. As is clear from the adhesive area indicated by the arrow, Male thread The top surface of the umbrella had a small adhesive area, which meant that the adhesive strength was low and it was easy to peel off. Male thread The head is glued and screwed onto the center pole, so when repairing the ribs, you need to turn the umbrella fabric and remove it from the center pole. Male threadAlso, what is important about a one-piece umbrella is that, apart from plain umbrellas, the top and bottom and left and right positions are important, so the fabric itself and the umbrella pattern must be Male thread However, there was also the problem that direct bonding made positioning extremely difficult. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-183557 [Patent Document 2] Japanese Utility Model Application Publication No. 53-44559 [Patent Document 3] Utility Model Registration No. 3225893 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] The present invention comprises an umbrella fabric and The umbrella structure is provided with a male screw whose head is larger in diameter than the shaft, a center rod on the inside of which is engraved a female screw into which the male screw screws, and a flat patch fabric with a hole in the center through which the head of the male screw does not pass but the shaft passes, the shaft of the male screw passes through the hole in the patch fabric and is screwed onto the female screw of the center rod, and the peripheral part of the patch fabric except for the part that abuts against the side of the head of the male screw is flatly adhesively joined to the inside surface of the umbrella fabric. [Means for solving the problem]

[0005] The umbrella structure according to the present invention comprises an umbrella fabric, This umbrella structure is provided with a male screw whose head is larger in diameter than the shaft on the inside of the umbrella fabric, a center rod with a female screw engraved on the inner surface into which the male screw screws, and a flat patch fabric with a hole in the center through which the head of the male screw does not pass but the shaft passes, the shaft of the male screw passes through the hole in the patch fabric and is screwed onto the female screw of the center rod, and the peripheral part of the patch fabric, excluding the part that abuts against the side of the head of the male screw, is flat-adhesively joined to the inside surface of the umbrella fabric. [Effects of the Invention]

[0006] The umbrella structure according to the present invention comprises an umbrella fabric, The umbrella fabric is provided with a male screw on the inside, the head of which is larger in diameter than the shaft, a center rod with a female screw on the inner surface into which the male screw screws, and a flat patch fabric with a hole in the center through which the head of the male screw does not pass but the shaft passes. The shaft of the male screw passes through the hole in the patch fabric and is screwed into the female screw of the center rod, and the periphery of the patch fabric, except for the part that abuts against the side of the male screw head, is flat-adhesively bonded to the inside surface of the umbrella fabric. This allows a larger adhesive area between the periphery of the patch, excluding the part that abuts against the side of the male screw head, and the inner surface of the umbrella material, thereby increasing adhesive strength and making the fabric less likely to peel off. Also The male screw is not attached to the umbrella fabric or adhesive. The handle can be adjusted by simply screwing it in, and the top and bottom and left and right positions of the single piece of fabric can be adjusted just like a regular umbrella. Male thread The female screw of the center rod can be screwed in, making positioning work easier. Male thread Since it is not directly attached to the umbrella fabric, you need to cut the holes in the fabric. Male threadIt has the advantage that it can be easily removed, and when putting it back together after repair, all you have to do is seal the cut hole with glue. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic diagram showing an example of an umbrella structure according to the present invention; [Figure 2] 1 is an enlarged schematic cross-sectional view of a main part showing an example of an umbrella structure according to the present invention. FIG. [Figure 3] 1 is a schematic explanatory diagram showing the actual working procedure of the umbrella structure according to the present invention. [Figure 4] FIG. 1 is an enlarged schematic cross-sectional view showing a main part of an example of a conventional umbrella structure. [Figure 5] FIG. 1 is an enlarged schematic cross-sectional view showing a main part of an example of a conventional umbrella structure. [Figure 6] FIG. 10 is an enlarged schematic cross-sectional view showing a main part of another conventional umbrella structure. BEST MODE FOR CARRYING OUT THE INVENTION

[0008] The umbrella structure according to the present invention comprises an umbrella fabric, The umbrella fabric is provided with a male screw on the inside, the head of which is larger in diameter than the shaft, a center rod with a female screw on the inner surface into which the male screw screws, and a flat patch fabric with a hole in the center through which the head of the male screw does not pass but the shaft passes. The shaft of the male screw passes through the hole in the patch fabric and is screwed into the female screw of the center rod, and the periphery of the patch fabric, except for the part that abuts against the side of the male screw head, is flat-adhesively bonded to the inside surface of the umbrella fabric. This is what happens when this happens. Example 1

[0009] The umbrella structure 1 of the present invention will be described below based on an embodiment. As shown in FIGS. 1 and 2, the umbrella structure 1 of the present invention comprises an umbrella fabric 2, Inside the umbrella fabric, there is a male screw 4 with a head 3a larger in diameter than the shaft 3b, and a female screw 5 into which the shaft 3b of the male screw 4 is screwed, carved into the hollow inner surface of a central rod 6. There is also a hole 7 in the center through which the head 3a of the male screw 4 does not pass but the shaft 3b passes. A flat adhesive sheet 8 is provided, and a male screw 4 is provided. Shaft of The screw passes through the hole 7 in the adhesive cloth 8 and is screwed into the female screw 5 of the center rod 6, and the male screw head 3a The glued portion of the peripheral portion 8c (the area indicated by the arrow in the figure) of the patch 8, excluding the portions 8a and 8b that abut the side surfaces, is flat-surface adhesively bonded to the inner surface 2a of the umbrella fabric. As an example of the actual work procedure, as shown in (a) to (c) of Figure 3, the male screw 4 is inserted into the hole 7 drilled in the center of the adhesive cloth 8. Shaft part 3b Insert the male screw head as shown by the arrow. 3aThe glued portion of the peripheral portion 8c of the patch cloth 8, excluding the contact portions 8a and 8b on the sides, is heat-sealed to the inner surface 2a of the umbrella fabric using an iron or the like. A cloth 10 made of the same material as the chrysanthemum seat is attached to the male screw 4. Insert the adhesive tape 8 into the center rod 6 and screw it into the female screw 5 of the center rod 6. Male screw head 3a In this embodiment, Male screw head 3a The parts 8a and 8b that contact the side surfaces are not glued. Male thread 4 This alone makes the screw operable. Furthermore, 11 is the main rib and 12 is the upper wheel.

[0010] Although the above embodiment is applied to a single-layer umbrella, it goes without saying that the invention can be applied to umbrellas other than single-layer umbrellas. Furthermore, although the bonding method used in the embodiment is heat welding with an iron, it is not limited to this and can be selected arbitrarily. Furthermore, the method of flat adhesive bonding of the umbrella fabric and the covering fabric can also be selected arbitrarily. [Industrial Applicability]

[0011] According to the umbrella structure of the present invention, On the side of the male thread The adhesive area between the periphery of the fabric (excluding the contact area) and the inside surface of the umbrella fabric is increased, increasing adhesive strength and making it less likely to peel off. At the same time, the part that abuts against the side of the male screw head is Because it is not glued to the umbrella fabric or adhesive, Male thread The handle can be adjusted by simply screwing it in, and the up and down and left and right positioning of the single piece with the handle can be done in the same way as a regular umbrella. Male thread The center rod can be screwed together, making positioning work easier. Male thread It is not directly attached to the umbrella fabric or the adhesive, so you need to cut the holes in the adhesive. Male thread It has the advantage that it can be easily removed, and when putting it back together after repair, all you have to do is seal the cut hole with glue. [Explanation of symbols]

[0012] 1 Umbrella structure 2. Umbrella fabric 3a male screw head 3b Male threaded shaft 4 male threads 5 female thread 6 Middle pole 7 holes 8 Paste 8c Periphery 10 Patch 11 Potter's Wheel

Claims

[Claim 1] This umbrella structure is characterized by comprising an umbrella fabric, a center rod on the inside of which is engraved a male screw whose head is larger in diameter than the shaft, a female screw into which the male screw screws, and a flat patch fabric with a hole in the center through which the head of the male screw does not pass but the shaft passes, the shaft of the male screw passes through the hole in the patch fabric and is screwed onto the female screw of the center rod, and the peripheral part of the patch fabric except for the part that abuts against the side of the head of the male screw is flat-adhesively bonded to the inside surface of the umbrella fabric.

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