JPH0534913U - Rain umbrella and umbrella bag - Google Patents

Abstract

(57) [Abstract] [Purpose] An object is to provide a rain umbrella and an umbrella bag in which rain water does not leak from the seams of the cloth material of the umbrella. [Structure] Umbrella fabric comrades such as vinylon fiber cloth cut into two isosceles triangles are welded together by ultrasonic welding means at the seam of two sides that sandwich the apex angle of the ultrasonically weldable umbrella fabric. The rain umbrella has a substantially spherical shape when opened and is attached to the rib of the umbrella. Also, in an umbrella bag using ultrasonically fusible material such as vinylon fiber cloth,
There is an umbrella bag in which the seam of the bag is formed by fusion-stitching the fabrics by ultrasonic fusion means.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rain umbrella made of vinylon fiber cloth, etc., and particularly in an umbrella using a cloth material that can be ultrasonically fused, the umbrella cloth comrades are joined by ultrasonic wave fusion means instead of stitching the sewn portion of the umbrella cloth with a thread. It is related to rain umbrellas that are fused and sewn so that the seams do not loosen. The present invention also relates to an umbrella bag for accommodating a rain umbrella, and more particularly to an umbrella bag in which seams of the bag are fused and sewn together by ultrasonic welding means to prevent water leakage.

[0002]

[Prior Art]

 Conventionally, umbrellas are made of cloth that is cut into isosceles triangles with sharp corners, and about 10 of them are arranged in a roughly circular shape so that they fit together. The two sides of the sandwich are sewn together with a thread and stretched around the ribs of the umbrella. Each time this umbrella is opened, the seams of the fabric are pulled and unfolded. In addition, the umbrella bag for storing the rain umbrella had a cloth material formed in a tubular shape, and its side edges were sewn together with threads.

[0003]

[Problems to be solved by the device]

 In this way, in conventional rain umbrellas, the umbrella fabric is sewn together with threads, so when opened in the rain, the threads of the seams of the umbrella fabric loosen to create a gap, and raindrops drip from this gap. As a result, there is a problem in that the clothes of the user may get wet and cause discomfort. In addition, there is a problem that the sewing thread breaks from the seam when the umbrella is repeatedly opened and closed and the sewing thread breaks, and it cannot be used for a long period of time.

Further, since an umbrella bag for storing a rain umbrella has its tubular bag body side edges sewn with threads, when a wet umbrella is stored inside, water drops falling from the umbrella leak from the seams of the bag. Therefore, there is a problem that the clothes of the person holding the umbrella get wet and feel uncomfortable.

According to the present invention, when the umbrella is opened and inserted in rainy weather, the sewn portion of the cloth material of the umbrella is loosened, raindrops do not drip from this portion, and even if it is repeatedly opened and closed, a sewn portion does not come out. The purpose is to provide a rain umbrella that does not occur. Another object of the present invention is to provide an umbrella bag in which water drops do not leak out even when a wet umbrella is stored.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the invention is to sew seams of two sides of an umbrella material such as vinylon fiber cloth, which can be ultrasonically welded, sandwiching the apex angle of the umbrella material by ultrasonic welding means. The rain umbrella is formed so that it has a substantially spherical shape when the umbrella is opened, and is attached to the rib of the umbrella.

Further, the rain umbrella is constructed by temporarily stitching the seams of the umbrella cloth with ultrasonically fusible threads and then stitching the seams by means of ultrasonic fusing means.

[0008] Furthermore, there is an umbrella bag in which a seam of a bag made of vinylon fiber cloth or the like that can be ultrasonically fused is used to form a bag by stitching the fabrics together by ultrasonic wave fusion means.

[0009]

[Action]

 According to this invention, since the seam of the umbrella material is ultrasonically fused and there is no gap, the seam does not loosen even if the opening and closing are repeated and the seam does not form a gap. Raindrops do not drip from it. In addition, the umbrella bag does not allow water droplets to leak outside even when storing a wet umbrella.

[0010]

【Example】

 Hereinafter, embodiments of a rain umbrella and an umbrella bag according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a bottom view showing a state in which the umbrella cloth of the rain umbrella according to the present invention is opened and sewn into an umbrella shape. In FIG. 1, reference numeral 1 denotes an ultrasonically fusible umbrella material such as vinylon fiber material cut into isosceles triangles having an apex at an angle of 45 degrees, which is relatively clear such as red, blue and yellow. It is colored, or has a floral pattern, a lattice pattern, a checkerboard pattern, etc.

The apex angle of the above-mentioned umbrella cloth 1 is 45 degrees divided into 8 equal to 360 degrees, but it depends on the number of bones constituting the umbrella, and the number of bones for 360 degrees is 10 degrees, 36 degrees, 12 degrees. It is decided as 30 degrees in the book. Then, the long sides of the umbrella cloths 1 and 1 are sequentially sewn by an ultrasonic sewing device (not shown), and are sewn so as to have a polygonal shape that is almost circular as a whole, that is, a substantially spherical shape when opened as an umbrella. Umbrella 2 Reference numeral 3 represents a seam allowance sewn by the ultrasonic sewing device.

FIG. 2 is a partially cutaway perspective view showing an opened state of the umbrella according to the present invention. In FIG. 2, the umbrella material 3 is attached to the rib 4 through the seam allowance 2 with a thread (not shown). Reference numeral 5 denotes a center rod of an umbrella, a handle 6 is attached to a base end thereof, a ball catch 7 is attached to an upper end of the handle 6, and a lower flipper is disposed in the middle. 8 is Chen shade.

FIG. 3 is an enlarged cross-sectional view of a temporary sewn portion of the cloth material in the umbrella according to the present invention, which is sewn with a thread before ultrasonic fusion stitching. FIG. 3 shows a state where the umbrella cloth 1a and the umbrella cloth 1b are overlapped and tentatively sewn with the ultrasonically fusible thread 9 to form the seam 9a. This temporary stitch may be conventional lock stitch.

FIG. 4 is an enlarged cross-sectional view of a portion of a cloth material in the umbrella according to the present invention, which is ultrasonically fused and sewn. In FIG. 4, the umbrella material 1a and the umbrella material 1b are overlapped and tentatively sewn with the thread 9 and the seam 9a are fused by ultrasonic fusing means to form a fused portion 1c. As a result, the umbrella cloth 1a and the umbrella cloth 1b are integrally fused to each other so that water does not leak.

In this way, the umbrella fabric of the present invention is an umbrella fabric that can be ultrasonically fused, such as vinylon fiber cloth, so that it is integrally fused by being sewn with an ultrasonic sewing device to form a liquid-tight seal state. And when I put my umbrella on, the raindrops wouldn't leak. Reference numeral 10 is an ultrasonic sewing trace.

FIG. 5 is an enlarged cross-sectional view of a portion of the cloth material in the umbrella bag according to the present invention that is ultrasonically welded and sewn. Reference numeral 11 denotes an umbrella bag body, and seams on the sides of the umbrella bag body 11 are ultrasonically fused to form an integral seam allowance 12. Although ultrasonic fusion is used in the embodiment, laser fusion may be used.

[0017]

[Effect of the device]

 In the rain umbrella according to the present invention, since each seam of the umbrella material is sewn by ultrasonic fusion, the seams are liquid-tightly integrally fused and the user feels uncomfortable when the umbrella is opened and inserted. It does not cause the leakage of raindrops. Even if the umbrella is repeatedly opened and closed, the seams of the umbrella do not break and sufficient durability can be obtained.

In addition, in the umbrella bag of the present invention, the seams on the sides of the main body are integrally sewn by ultrasonic fusion, so that even if a wet umbrella is put inside, rainwater falling from the umbrella bag Will not leak out of the umbrella bag and will not wet the user's clothes.

[Brief description of drawings]

FIG. 1 is a bottom view showing a state in which the umbrella material of the rain umbrella according to the present invention is opened and sewn into an umbrella shape.

FIG. 2 is a partially cutaway perspective view of an umbrella according to the present invention in an opened state.

FIG. 3 is an enlarged cross-sectional view of a temporary sewn portion of a cloth material in the umbrella according to the present invention before being ultrasonically fused and sewn with a thread.

FIG. 4 is an enlarged cross-sectional view of a portion of the cloth material in the umbrella according to the present invention which is ultrasonically fused and sewn.

FIG. 5 is a cutaway enlarged cross-sectional view of a portion of a cloth material in the umbrella bag according to the present invention that is ultrasonically welded and sewn.

[Explanation of symbols]

 1,1a, 1b Umbrella cloth 1c Fused part 2 Umbrella 3 Seam allowance 4 Rib bone 5 Middle rod 6 Handle 7 Tamadome 8 Jinkasa 9 Thread 10 Ultrasonic stitching trace 11 Umbrella bag body 12 Seam allowance

Claims (3)

[Scope of utility model registration request] 1. Umbrella fabric comrades are fused and sewn together by ultrasonic fusion means at the seam of two sides that sandwich the apex angle of an ultrasonically fusible umbrella fabric such as vinylon fiber cloth cut into isosceles triangles. Then, the rain umbrella is formed so as to have a substantially spherical shape when the umbrella is opened, and is attached to the rib of the umbrella. 2. The seam of the umbrella fabric is sewn with a thread capable of being fused in advance, and then the fabrics are fused and sewn together by ultrasonic fusing means. Rain umbrella. 3. An umbrella bag, characterized in that a seam of a bag made of a vinylon fiber cloth or the like that can be ultrasonically fused is formed by sewn the fabrics together by ultrasonic welding means.