JP5403218B2 - Umbrella with improved wind resistance - Google Patents

Description

  The present invention relates to an umbrella with improved wind resistance, which does not turn into a saddle shape even when subjected to strong winds such as gusts.

  Umbrellas such as rain umbrellas, when opened, are turned into a saddle shape (so-called “mouth”) when they are struck by a gust of wind, etc., and the parent bone is often broken or deformed to become unusable. Therefore, many improvements have been proposed so far. There are two types of conventional improvements. The structure of the framework and the kite is devised so that it can be used again without breaking even if it becomes saddle-like, and the wind pressure is released so that it does not become saddle-like. (See, for example, Patent Documents 1, 2, or 3).

The former type requires structural improvements to the umbrella, so that the manufacturing process becomes complicated even when compared with a normal umbrella manufacturing method, which is not realistic in terms of manufacturing cost. On the other hand, the latter type has not been widely used so far. Analyzing the conventional technology for this type of umbrella that releases wind pressure, all of the open areas that release the wind pressure are extremely narrow, and there is a possibility that the wind pressure cannot be fully released under the gust of wind that can actually occur and break down Turned out to be expensive.
In addition, like the former type, there are some problems that are complicated in manufacturing process and manufacturing cost.

  The conventional problem of the umbrella of the type that releases the wind pressure will be specifically described.

  For example, in the umbrella disclosed in Patent Document 1, two umbrellas are provided, and an umbrella having an area larger than the opening is formed on an upper part of an ordinary umbrella having an opening in a central region when the umbrella is opened. It is configured to be opened. An air passage is formed between the large umbrella and the small umbrella, but the portion of the fabric that blocks the wind is larger than that of the air passage. There was a problem that it would end up. In addition, two wrinkles must be formed, the manufacturing process is complicated, and the number of parts is increased, resulting in a problem that the manufacturing cost is extremely high.

  Next, for example, the umbrella disclosed in Patent Document 2 is similar to the umbrella disclosed in Patent Document 1, and an opening is formed in a central region when the umbrella is opened, and another fabric is formed thereon. Is stretched by being polymerized in the opening. Compared to the umbrella disclosed in Patent Document 1, the structure is simple and the manufacturing cost is small, but the opening is small, so the resistance is large, and the problem is that it is easily broken by a gust with a high wind speed. was there.

  Next, for example, in the umbrella disclosed in Patent Document 3, the cloth of the umbrella is divided, and a portion where the cloth overlaps between the stone protrusion and the tip of the main bone is enlarged and stretched, and from there, the inside of the umbrella It is intended to release the wind that enters. However, there has been a problem that the fabric on the stone bump (center) side has a complicated shape in order to form a part that becomes a wrinkle, and the production of this fabric is complicated. In addition, since it is necessary to sew or bond between the master bone and the master bone, a process different from that of normal umbrella manufacturing including the preparation of the fabric is added, and there is a problem that the manufacturing cost is high. . Furthermore, in addition to the problem that the wind blows up from the outer periphery of the umbrella and the wind blows inward, the biggest problem is the same as in the above two disclosed examples. It was to destroy.

JP 2006-102392 A (page 4-7, FIG. 1) JP-A-11-169216 (page 2-3, FIG. 4) Japanese Patent Laid-Open No. 11-56433 (page 2-3, FIG. 1)

  Therefore, the present invention has been made in view of the above-described conventional problems, and by reducing resistance to wind as much as possible, even strong winds such as gusts can appropriately pass the wind and prevent breakage due to reversal, etc. And it aims at providing the umbrella which can be manufactured easily.

In order to solve the above problems, the umbrella of the present invention is an umbrella with improved wind resistance that releases the wind pressure received from the inside when the umbrella is opened. Around at least two partial fabrics cut into a concentric ring around the shape of the partial fabric in the shape of an armored door toward the tip of the main bone so that the predetermined width on the inside is lower, An umbrella integrated by stitching or adhering only the straight portion with which the main bone abuts,
The width of the overlapping portion in the length direction of the parent bone varies between the parent bone and the parent bone, and the outer periphery of the partial fabric is cut into a substantially U shape so that the polymerization width is the smallest in the central portion. It is characterized by being.
According to the said structure, when a wind is received inside the umbrella, it will become easy to open a superposition | polymerization part. Therefore, it is possible to easily form a wind passage and escape the wind.

Moreover, the umbrella of the present invention is an umbrella with improved wind resistance according to claim 1, wherein the overlapping portion is at least 10% to 30% of the width of the partial fabric in the length direction of the main bone. It is characterized by being.
According to the said structure, compared with the case where there are many parts which cloth | dough has superposed | polymerized, when a wind is received inside the umbrella, a superposition | polymerization part becomes easy to open. Therefore, it is possible to easily form a wind passage and escape the wind.

  According to the umbrella of the present invention, breakage due to reversal or the like can be prevented. Moreover, the umbrella can be manufactured inexpensively and easily.

  Hereinafter, the umbrella which improved the wind resistance in embodiment of this invention is demonstrated in detail using drawing.

  1 and 2 are perspective views showing the appearance of an umbrella with improved wind resistance in an embodiment of the present invention. The umbrella in the embodiment of the present invention is mainly composed of a substantially disc-shaped partial fabric 1, concentric ring-shaped partial fabrics 2 and 3, a stone protrusion 40, a main bone 41, an umbrella shaft 42, a handle 43, and the like. The substantially disc-shaped partial fabric 1 centered on the stone protrusion 40 is a fabric stretched at the center of the divided fabric, and is stretched so as to form a superposition part 12 between the ring-shaped partial fabric 2. It is installed. Of the overlapping portions 12 of the partial fabric 1 and the partial fabric 2, only the portion that comes into contact with the parent bone 41 is stitched to form the stitched portion 10. Since the fabrics 1 and 2 are stretchable and the main bone 41 has elasticity, the overlapping portion 10 is easily opened, and the same number of openings 11 as the air passages are formed. In particular, since the overlapping portion 12 is formed so that the fabric 1 covers the fabric 2, the wind hitting the inside of the umbrella can pass through the opening portion 11 and be released radially.

  The width in the longitudinal direction of the master bone of the overlapping portion 12 is such that the outer periphery of the fabric 1 is approximately such that the center of the master bone 41 and the master bone 41 (A in the figure) is shorter than the vicinity of the master bone (B in the figure). It has been cut into a letter shape. Thereby, the opening part 11 is easily formed from the center even with a slight wind.

  The ring-shaped partial fabric 3 is a fabric stretched on the outermost side of the divided fabric, and is stretched so as to form the overlapping portion 22 between the ring-shaped partial fabric 3. Of the overlapping portions 22 of the partial fabric 2 and the partial fabric 3, only the portion that comes into contact with the parent bone 41 is stitched to form the stitched portion 20. Since the fabrics 2 and 3 have elasticity and the main bone 41 has elasticity, the overlapping portion 20 is easily opened, and the same number of openings 21 as the air passage are formed. In particular, since the overlapping portion 22 is formed so that the fabric 2 covers the fabric 3, the wind hitting the inside of the umbrella can pass through the opening portion 21 and be released radially.

  Note that the width of the superposed portion 22 in the longitudinal direction is such that the outer periphery of the dough 2 is approximately such that the center of the master bone 41 and the master bone 41 (C in the figure) is shorter than the vicinity of the master bone (D in the figure). It has been cut into a letter shape. Thereby, the opening part 11 is easily formed from the center even with a slight wind.

  As described above, since the three fabrics are stretched in the shape of an armored door, a large number of openings for allowing the wind to pass therethrough can be formed. Here, the armor door shape refers to the shape of an armor formed by overlapping armor plates or a blind with overlapping louvers. Shape.

  As described above, the umbrella with improved wind resistance according to the embodiment of the present invention is formed so that the overlapping width of the overlapping portion is not uniform and the overlapping width of the central portion is smaller than the overlapping width in the vicinity of the parent bone. Compared with the conventional case, the wind pressure from the handle side when the umbrella is opened can be released more effectively. Accordingly, even strong winds such as gusts can be appropriately passed to prevent breakage due to inversion. Moreover, the conventional framework of the umbrella can be used as it is, and the fabric has a shape that requires only simple stitching or adhesion before tensioning. Therefore, an umbrella with improved wind resistance can be manufactured inexpensively and easily.

  In the above embodiment, the case where the number of the partial fabrics is 2 or 3 is illustrated, but this is not limited to this, and more partial fabrics are formed by sewing or bonding. It doesn't matter.

  The umbrella with improved wind resistance according to the present invention can prevent breakage due to reversal and the like, and has an effect that it can be manufactured inexpensively and easily, and is useful for mass production-oriented umbrellas.

  The perspective view which shows the external appearance of the umbrella which improved the wind resistance in embodiment of this invention   The perspective view which shows the external appearance of the umbrella which improved the wind resistance in embodiment of this invention

DESCRIPTION OF SYMBOLS 1 Substantially disk-shaped partial fabric 2 Concentric circular partial fabric 3 Concentric circular partial fabric 4 Concentric circular partial fabric 10 Suture part 11 Opening part 12 Superposition | polymerization part 20 Suture part 21 Opening part 22 Superposition part 30 Suture part 31 Opening part 32 Superposition part 40 Stone bump 41 Master bone 42 Umbrella shaft 43 Grab handle 100 Umbrella with improved wind resistance

Claims (2)

An umbrella with improved wind resistance that releases the wind pressure received from the inside when the umbrella is opened,
Umbrella cloth is directed to the tip of the main bone so that the predetermined width inside the at least two partial cloths cut into concentric rings around the circumference of the substantially disk-shaped partial cloth centered on the stone bump. In an umbrella that is polymerized into an armor door shape and integrated by stitching or adhering only the straight part where the main bone of the superposed part abuts,
The width of the overlapping portion in the length direction of the parent bone varies between the parent bone and the parent bone, and the outer periphery of the partial fabric is cut into a substantially U shape so that the polymerization width is the smallest in the central portion. Umbrella with improved wind resistance, characterized by   2. The umbrella with improved wind resistance according to claim 1, wherein the superposed portion is at least 10% to 30% of a width in a length direction of the main bone of the partial fabric.