A second-stage rib of a folding umbrella and its processing method
A processing method and technology of umbrella ribs, applied in the direction of walking sticks, etc., can solve the problems of easy fracture, easy tilting of bone pieces to one side, excessive strength, etc., and achieve the effect of reducing fracture problems, reducing manufacturing costs, and improving force bearing capacity
Active Publication Date: 2018-04-24
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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[0042] It should be noted that the "upper end" mentioned in the present invention refers to the end facing the direction of the umbrella pole, and the "lower end" refers to the end facing away from the direction of the umbrella pole. Similarly, "up" refers to the direction toward the umbrella pole, and "down" refers to the direction away from the umbrella pole. The so-called up and down only refer to their relative positions, which is convenient for description and is not particularly limited. Of course, "upper" can also be defined as "left", and "lower" can be defined as "right", which does not affect the structural relationship of the present invention.
[0043] refer to Figure 11-Figure 17 , the second gear rib of a folding umbrella according to the present invention includes the rib body, the upper end of the body is provided with the first mounting hole 11 for connecting the lower plate 6, and the lower end is provided with the first mounting hole 11 for connecting the ...
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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 umbrella components, in particular to an umbrella rib assembly, in particular to a second-stage rib of a folding umbrella and a processing method thereof. Background technique [0002] Conventional folding umbrellas have different structural forms such as three-fold umbrellas and five-fold umbrellas. like 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 upper plate 4 and the handle 1 of the umbrella are respectively fixedly installed on the upper and lower ends of the umbrella pole 2, the lower plate 6 is set on the umbrella pole 2, and can slide up and down along the umbrella pole 2, and the upper edge of the upper plate 4 and the lower plate 6 A group of grooves are uniformly opened on the outer circumference. [0003] combine figure 2 , the umbrella stand 3 is composed of a group of bone pieces ...
Claims
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IPC IPC(8): A45B25/02A45B25/04
CPCA45B25/02A45B25/04
Inventor 王奇伟
Owner HANGZHOU PARADISE UMBRELLA GROUP