Folding umbrella
A technology for folding umbrellas and umbrella shafts, applied in the field of folding umbrellas, which can solve the problems of shortening the folding length, narrowing the interval, and short moving stroke of the lower umbrella shaft 22, so as to achieve the effect of ensuring the diameter of the umbrella opening
Inactive Publication Date: 2006-09-27
SHIBUYA RYUTSU
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Problems solved by technology
[0011] For this reason, when the length of the middle pole is set to be constant and examined, the following problems will occur: when increasing the number of telescopic joints of the middle pole 10, for example, to six joints, there will be a gap between the upper umbrella shaft 21 and the lower umbrella shaft 22. At the same time, the movement stroke of the lower umbrella shaft 22 becomes very short, and the telescopic action of the folding rib 30, that is, the operation of opening / closing the umbrella cannot be carried out smoothly.
[0013] As a folding umbrella, it is ideal to fold it as short as possible when carrying it, and on the other hand, to open it as large as possible when opening it, but the above-mentioned folding umbrella cannot realize the two aspects of shortening the folding length and setting a large opening diameter at the same time
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[0030] FIG. 1 shows the outline of a folding umbrella as one embodiment of the present invention with an omitted side view.
[0031] figure 2 The main parts of the present invention are shown in cross-section.
[0032] As the main components, the folding umbrella shown in this figure is equipped with a multi-section telescopic middle pole 10 made of nested pipes, a multi-connected folding umbrella rib 30, and an upper umbrella shaft 21 and a lower umbrella shaft 22, etc.
[0033] The middle rod 10 is a six-segment telescopic type, and is composed of six metal unit tubes 10a to 10f whose diameter gradually decreases from the proximal end to the distal end. Each of the unit tubes 10a to 10f is formed to have a small diameter step by step in the order of arrangement, and is slidably fitted in order of diameter.
[0034] The top of the middle rod 10 is equipped with an upper umbrella shaft 21 . The upper umbrella shaft 21 is fixed above the middle pole 10 , but not fixed relat...
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The invention relates to a foldable umbrella, which can open and close umbrella, shorten folded length to confirm the open diameter, wherein it has a cylinder (211) longer than the top unit tube of middle rod (10) and same as the base unit tube (10f), while it prolongs under the upper umbrella axle (21), to make the lower umbrella axle (22) sliding embedded on the prolonged cylinder (211); the cylinder (211) is set with flexible element (15) clamping said lower umbrella axle (22).
Description
technical field [0001] The present invention relates to folding umbrellas, and in particular to multi-section folding umbrellas which are effectively applicable to having a multi-section telescoping central stem formed of nested tubes. Background technique [0002] Folding umbrellas are constructed using a multi-section telescoping mid-stem made of nested tubes together with ribs. The nested pipe is configured to slidably fit a plurality of unit pipes having different diameters in order of diameter (for example, refer to Japanese Patent Laid-Open No. 2003-189916). [0003] In order to improve the portability (convenience of carrying) of the folding umbrella, it is necessary to shorten the folded size of the middle pole and the ribs, especially the folded length. In order to shorten the folding length, it is enough to increase the number of expansion joints of the middle rod, that is, the number of unit tubes of the nested tube. [0004] Here, the inventors of the present i...
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IPC IPC(8): A45B19/04A45B19/10A45B25/08
Inventor 林秀信
Owner SHIBUYA RYUTSU