Second-gear umbrella rib of folding umbrella and processing method thereof
A processing method and umbrella rib technology, which can be used in canes and other directions, can solve the problems of excessive strength, easy to tilt to one side of the bone piece, easy to break, etc., and achieve the effect of improving the force capacity, reducing the manufacturing cost and reducing the fracture problem.
Active Publication Date: 2016-05-25
HANGZHOU PARADISE UMBRELLA GROUP
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Problems solved by technology
In order to meet the requirements of the maximum stress, the width of the blanking can only be designed according to the maximum stress point, and the strength of many places is excessive, resulting in a large waste of materials, which is very uneconomical
Moreover, some positions are prone to breakage under special circumstances
[0009] Another defect of the second rib of this structure is: the sixth rib is connected to the side of the second rib, once it is under the pressure of the umbrella surface, the ribs tend to tilt to one side, which affects the beauty of the umbrella surface. It is not conducive to the stability of opening and closing
Method used
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[0044] It should be noted that the “upper end” mentioned in the present invention refers to the end facing the direction of the umbrella shaft, and the “lower end” refers to the end facing away from the direction of the umbrella shaft. In the same way, "upward" refers to the direction toward the umbrella shaft, and "downward" refers to the direction away from the umbrella shaft. The so-called top and bottom only refer to their relative positions, which are convenient for description and are not particularly limited. Of course, "upper" can also be defined as "left" and "down" as "right", which does not affect the structural relationship of the present invention.
[0045] Refer to Figure 11-17 , The second-level rib of a folding umbrella of the present invention includes a rib body. The upper end of the main body is provided with a first mounting hole 11 for connecting the bottom plate 6, and a second-level rib 26 is provided near the lower end. The second mounting hole 12 is pr...
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The invention discloses a second-gear umbrella rib of a folding umbrella. The second-gear umbrella rib comprises an umbrella rib body. The upper end of the body is provided with a first installation hole for being connected with a lower disc. The portion close to the lower end of the body is provided with a second installation hole for being connected with a sixth-gear umbrella rib. The lower end of the body is provided with a third installation hole for being connected with a large saddle. The body is formed by folding a blank obtained through stamping along the center line in the length direction. The second-gear umbrella rib is characterized in that that the middle of the body is further provided with a fourth installation hole for being connected with a third-gear umbrella rib, and in the blank, at least the width of the area between the fourth installation hole and the second installation hole is larger than that of the area between the fourth installation hole and the first installation hole. The size of the main stress portion in the middle is widened, and the middle is provided with the fourth installation hole, so that the middle can be directly riveted to the third-gear umbrella rib with no small saddle, and a lower saddle component is omitted; the material using amount is reduced, the processing cost is reduced, the working procedure that the lower saddle is embedded into the second-gear umbrella rib is omitted, and the manufacturing cost is further reduced.
Description
Technical field [0001] The invention relates to parts for umbrellas, in particular to umbrella rib components, in particular to a second-stage umbrella rib of a folding umbrella and a processing method thereof. Background technique [0002] Conventional folding umbrellas have different structures such as three-fold umbrellas and five-fold umbrellas. Such as figure 1 As shown, a typical three-fold umbrella includes a handle 1, an umbrella pole 2, an umbrella stand 3, an upper plate 4, an umbrella surface 5 and a lower plate 6. The umbrella upper plate 4 and the handle 1 are respectively fixedly installed on the upper and lower ends of the umbrella shaft 2. The lower plate 6 is sleeved on the umbrella shaft 2 and can slide up and down along the umbrella shaft 2. The upper plate 4 and the lower plate 6 A set of grooves are uniformly opened on the outer circumference. [0003] Combine figure 2 The umbrella frame 3 is composed of a set of bone fragment components with basically the s...
Claims
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IPC IPC(8): A45B25/02A45B25/04
CPCA45B25/02A45B25/04
Inventor 王奇伟
Owner HANGZHOU PARADISE UMBRELLA GROUP