JPS6337846Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a folding umbrella rib, and the length when folded is compared to that of a conventional one without affecting the length when the umbrella is opened. This invention relates to an improvement in the structure of an umbrella rib that can be further shortened.

[Conventional technology]

In general, the rib structure of a Western umbrella is shown in Figure 3 when it is open, and Figure 4 when it is closed and folded.
As shown in the figure, a perpendicular bone 10, an accessory perpendicular bone 20,
the connecting bone 30 and the master rib 40 are hinged to each other;
They are connected so that they can rotate with each other.

When the umbrella is folded, the supporting ribs 10 and the main ribs 40 are folded over each other as shown in FIG. This corresponds to the length of the overlapping ribs 40 and 40. Therefore, if you try to shorten the length of the umbrella when folded, the above-mentioned support bone 1
Although it is necessary to shorten the length of 0 and the main rib 40,
In order to maintain the size of the umbrella when it is opened to a certain level, it is impossible to reduce the length of the support ribs 10 and the main ribs 40 indefinitely, which makes it inconvenient to store and carry. There is a drawback.

Therefore, the "folding Western umbrella" described in Tokuko Publication No. 19354, Tokuko No. 42-17700, and Tokuko Tokugawa Publication No. 42-1970
"Folded Umbrella" described in Publication No. 17701, Special Publication 1977-
Each of the proposals for the "umbrella" described in Publication No. 30499 is related to the folding of the umbrella ribs, but none of them make it possible to shorten the length of the umbrella when folded.

[Problem that the invention attempts to solve]

This invention was developed to solve the problems mentioned above, and its purpose is to maintain the same size of the umbrella when opened as before, while increasing the length when folded compared to the conventional one. To provide a folding structure of a foldable umbrella rib that can be made much shorter than that of a conventional umbrella, and thereby to provide a Western umbrella convenient for storage and carrying.

[Means for solving problems]

In order to achieve the above purpose, the present inventor completed the present invention as a result of intensive research based on his long experience and knowledge.

Therefore, the gist of the folding umbrella frame according to the present invention is that it includes a sub-branch whose one end is pivotally supported on an upper potter's wheel provided on the umbrella shaft, and a sub-branch that is slidably movable on the umbrella shaft. One end is pivoted to the lower potter's wheel, and the other end is pivoted to an intermediate position of the above-mentioned sub-branches, and the other end of the above-mentioned sub-branches is connected by a mounting part provided near one end. a second support bone pivotally attached to the second support bone, a master rib pivotally connected to the other end of the second support member, and one end of which is pivotally connected to the second support member at a mounting portion provided near the other end of the first support member; , a first connecting bone pivotally connected to one end of the second supporting bone at an intermediate position, one end of which is pivotally connected to the other end of the first connecting bone, and the other end of the first connecting bone is pivotally connected to one end of the second connecting bone; and a second connecting bone pivotally connected near one end of the main bone.

[Effect]

With the above configuration, the two-tiered strut is divided into two and connected by a connecting bone, so when the umbrella is closed, it will be broken in three together with the main rib, and the first and second struts will be broken. As the lengths of the umbrellas change to match each other, the umbrella ribs are shortened by almost one-third compared to before.
Its length when folded is extremely short.

〔Example〕

Hereinafter, the details of the present invention will be explained in detail by comparing the conventional folding umbrella rib and the folding umbrella rib according to the present invention with reference to the drawings.

Here, a specific calculation example will be given below to compare the folded lengths of the conventional folding umbrella rib and the folding umbrella rib according to the present invention.

In this invention, the length of the umbrella rib after folding refers to the distance that the upper potter's wheel and lower potter's wheel open after folding the umbrella, and the length of the umbrella rib when it is opened is 500 mm.
Assuming that, the length that protrudes from the lower potter's wheel part after folding is 50 mm.Also, a general Western umbrella is folded in two, but the present invention is folded in three. The length after folding is explained as follows.

The length of a regular Western umbrella after folding is: (500mm - 50mm) ÷ 2 + 50mm = 275mm The length of the invention after folding is: (500mm - 50mm) ÷ 3 + 50mm = 200mm As you can understand from the above comparison, The length that can be shortened when the umbrella of the present invention is closed is approximately two-thirds of the length when a conventionally known umbrella is closed.

Fig. 1 is an explanatory diagram showing one embodiment of the structure of the umbrella rib of a Western umbrella according to the present invention in an open state;
The figure is an explanatory diagram showing the umbrella rib of the Western umbrella according to the present invention shown in FIG. 1 in a folded state, and FIG. FIG. 4 is an explanatory diagram showing a state in which the ribs of the conventional western umbrella shown in FIG. 3 are folded.

As shown in FIGS. 1 and 2, the structure of the umbrella ribs of the Western umbrella according to the present invention is that the umbrella ribs that are pivoted and connected to each other include a first strut 1, a second strut 1', and a second strut 1'. Sub-branch 2, first connecting bone 3, second connecting bone 3' and main bone 4
It has the following.

The connected state is such that one end of the first support bone 1 and the secondary support bone 2 are pivoted on the lower wheel 5 and the upper wheel 6, respectively.
The other end of the first support bone 1 is pivotally connected to a substantially intermediate position of the secondary support bone 2, and the other end of the secondary support bone 2 is pivotally connected to an intermediate position near one end of the second support support 1', one end of the first connecting bone 3 is pivotally connected near the other end of the first connecting bone 1, and is pivotally connected to one end of the second connecting bone 1' at an intermediate position of the first connecting bone 3;
The other end of the first connecting bone 3 and one end of the second connecting bone 3' are pivotally connected to each other, and the other ends of the second connecting bone 1' and the second connecting bone 3' are connected to one end of the main rib 4, respectively. By being pivotally attached to each other in the vicinity, a link mechanism is formed with each other, and by moving the lower potter's wheel 5 along the umbrella shaft 7, the above-mentioned links can achieve an interlocking effect.

Therefore, the connected umbrella ribs load the first and second struts 1' and 1', which can mutually fold the length of the conventional direct type struts 10 between the lower potter's wheel 5 and the main ribs 4. Since the umbrella has been improved so that the umbrella can be folded, the length previously occupied by the direct type support 10 is shortened to the length where the first support 1 and the second support 1' are folded over each other. Therefore, after the umbrella rib of the present invention is folded, it can be shortened by about one-third compared to the conventional umbrella rib after being folded, making it possible to achieve an even shorter folded state. It is.

[Effect of idea]

Since the present invention is constructed as described above, the length of the umbrella when folded can be made much shorter than the conventional one without shortening the radius of the umbrella when opened. This provides a Western umbrella that is convenient for storage and portability.

Note that the configuration of the present invention is not limited to the embodiments described above, and all modifications that can be easily conceived by a person skilled in the art from the above description and known techniques within the scope of the purpose of the present invention. Examples are included.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing one embodiment of the structure of the umbrella rib of a Western umbrella according to the present invention in an open state;
The figure is an explanatory diagram showing the umbrella rib of the Western umbrella according to the present invention shown in FIG. 1 in a folded state, and FIG. FIG. 4 is an explanatory diagram showing a state in which the ribs of the conventional western umbrella shown in FIG. 3 are folded. 1...First vertebrae, 1'...Second vertebrae, 2...Auxiliary vertebrae, 3...First connecting bone, 3'...Second connecting bone,
4... Main bone, 5... Lower potter's wheel, 6... Upper potter's wheel,
7... Umbrella shaft, 10... Vertical bone, 20... Sub-branchal bone, 3
0...connected bone, 40...main bone.

Claims (1)

[Claims for Utility Model Registration] A folding umbrella frame comprising the components described in the following items (a) to (f). (a) A sub-branch with one end pivoted on the upper potter's wheel provided on the umbrella shaft. (b) A first support bone, one end of which is pivoted to a lower potter's wheel that is slidably provided on the umbrella shaft, and the other end of which is pivoted to an intermediate position of the subsidiary support bones. (c) a second vertebra pivotally connected to the other end of said secondary vertebrae by an attachment portion provided near one end thereof; (d) A master rib pivoted to the other end of the second vertebrae. (e) a first connecting bone, one end of which is pivotally attached to an attachment portion provided near the other end of the first bone, and a first connecting bone that is pivotally attached to one end of the second bone at an intermediate position; (f) a second connecting bone, one end of which is pivotally attached to the other end of the first connecting bone, and the other end of which is pivotally attached near one end of the main bone;