JPH0436661Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a telescopic and foldable Western umbrella, and in particular, the length when folded can be made much shorter than conventional umbrellas, and the opening and closing operations can be performed smoothly. The present invention relates to a Western umbrella having an umbrella rib structure that can be used as an umbrella.

[Conventional technology]

Traditionally, three-tier folding Western umbrellas have been widely used, but if you want to shorten the length of the umbrella when folded, it is necessary to shorten the length of the ribs and spines, but when the umbrella is opened, In order to maintain the size above a certain level, it is impossible to shorten these lengths indefinitely, and this has the disadvantage of being inconvenient for storage and portability.

Accordingly, in the "shortenable umbrella" described in Japanese Patent Publication No. 44-30665, the umbrella rib can be shortened, but in this case, the main rib is expanded and contracted. The "folding umbrella" described in Japanese Patent Publication No. 51-02861 also has a structure in which the umbrella ribs can be shortened, but the shortening means has angle changes, making it difficult and inconvenient to extend and retract. "Folding Western Umbrella" described in Japanese Patent Publication No. 48-19354, "Totsu Press Type Three-tier Folding Western Umbrella" described in Japanese Patent Publication No. 54-14534, or
In the "umbrella cloth retracting device for a totsu press type folding umbrella" described in Publication No. 54-16783, the length of the struts and support bones remains constant, so it is difficult to shorten the umbrella any further. . Also, Jitsukō 49-00195
The "folding umbrella handle" described in the publication had three stages of expansion and contraction, and could not be shortened sufficiently when folded.
Furthermore, Japanese Patent Application Laid-open No. 48-76648 discloses a "three-tier folding western umbrella" in which the length of the supporting bones can be expanded and contracted. There are problems such as the use of multiple units makes the structure delicate, increases manufacturing costs, and increases the number of causes of failure.

Japanese Patent Publication No. 49-24381 discloses a structure of an umbrella rib that can be folded into four stages, but of the two divided ribs, the rib on the tip side is simply rotatable at the tip of the other rib. Since the umbrella was only attached to the top of the umbrella, it was not always easy to use, as the umbrella did not open properly when opened, and it sometimes had to be folded by hand when closing.

[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 western umbrella which can be made much shorter than the previous umbrella, and which allows the entire umbrella rib to open and close smoothly when opening and closing the umbrella, thereby being convenient for storage and portability and easy to use.

[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 telescopic folding Western umbrella according to the present invention is as follows.
The umbrella frame structure consists of the components (a) to (j), namely: (a) an upper potter's wheel fixed to the stone protrusion side of the umbrella shaft, and (b) a lower part that is movable along the umbrella shaft. (c) The first rib; (d) The outer end of the first rib (when the umbrella is opened, the one closest to the umbrella shaft is called the inside, and the one farthest from the umbrella is called the outside.
Same below. ) is attached so that it can be bent freely.
(e) a power bone whose inner end is pivoted to the lower potter's wheel 5; and (f) a first bone whose inner end is pivoted to the power bone. (g) the first support bone is inserted into and out of the inner end of the first support bone in a telescoping manner, and the outer end thereof is pivoted at an intermediate position near the inner end of the first support bone; (h) the inner end is pivoted to the upper potter's wheel, the outer end is pivoted to the inner end of the second vertex, and the outer end of the power bone is located at an intermediate position; a secondary shaft having pivoted ends; (j) a connecting bone that is pivotally attached to the inner end of the first main rib to form a link with a part of the first main rib, a part of the secondary support bone, and the second support bone; A slide hook provided near the outer end of the second support bone, and a wire with a spring stretched between the inner end of the second main bone, and an umbrella structure comprising: It is.

It is recommended that the umbrella shaft is a four-stage telescopic umbrella shaft made by sequentially nesting together a double concave tube, a single concave tube, a circular tube, and a circular convex tube having a plurality of concave and convex portions.

[Effect]

With the above configuration, the first and second supporting bones, which are divided into two, expand and contract in a nested manner, and the main rib is also divided into the first main rib and the second main bone and can be folded, so that the umbrella bone can be folded. It essentially has a four-fold structure, and when opened, it maintains the same large opening radius as before, but when closed, it is folded much shorter than before, and the second rib attached to the tip of the first rib. Since the two ribs are automatically opened and closed in accordance with the opening and closing operations of the umbrella by the action of a wire with a spring attached to the inner end thereof, it is possible to provide a folding umbrella that is easy to use.

[Example] Hereinafter, details of the present invention will be specifically explained by comparing a conventional folding type Western umbrella and a Western umbrella according to the present invention with reference to the drawings.

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, and Fig. 2 is an illustration of the folding of the umbrella rib of the western umbrella according to the present invention shown in Fig. 1. An explanatory diagram showing the process; FIG. 3 is a perspective view showing an example of an umbrella shaft used in a Western umbrella according to the present invention;
FIG. 4 is an axis-perpendicular cross-sectional view of the umbrella shaft shown in FIG. 3.

In Figures 1 and 2, 1 is a perpendicular bone, 2 is an accessory peristaltic bone,
2' is the power bone, 3 is the connecting bone, 4 is the main bone, 5 is the lower potter's wheel, 6 is the upper potter's wheel, 7 is the umbrella shaft, 9 is the slide hook, 10 is the supporting bone, 11 is the first supporting bone, 12 is the third supporting bone. 13 is a joint, 41 is a first rib, 42 is a second rib, 43 is a hook joint, and 91 is a wire.

As shown in FIG. 1, the structure of the umbrella rib of the Western umbrella according to the present invention is such that the spine 1 is divided into the first spine 11 and the second spine 12, and the first spine 11 is divided into the second spine 12. Biconic bone 12
The main rib 4 is inserted therein so as to be able to move forward and backward in a nested manner, and the main rib 4 is also divided into a first main rib 41 and a second main rib 42 so that it can be folded.
A slide hook 9 provided near the outer end of 2;
It is characterized in that the second rib 42 is configured to be automatically opened and closed in accordance with the opening/closing operation of the umbrella by a wire 91 with a spring attached between the inner end of the second rib 42.

The inner end of the first support bone 11 is pivoted near the attachment position to the lower potter's wheel 5 of the power bone 2'. The inner end of the power bone 2' is pivoted to the lower potter's wheel 5, and the outer end of the power bone 2' is pivoted to the intermediate position of the sub-branch 2.

The outer end of the first support 11 is inserted into the second support 12 from its inner end so that it can move forward and backward in a nested manner. The above second vertebra 1
A joint 13 is provided on the outer periphery of the connection part 2 with the first support bone 11.
is attached, and the joint 13 is connected to the upper potter's wheel 6 via the sub-support bone 2. On the other hand, the outer end of the second main rib 12 is connected to the first main rib 41, and the inner end of the first main rib 41 is pivotally connected to the intermediate position of the secondary support bone 2 via the connecting bone 3, As a result, a kind of link mechanism is formed by a part of the secondary support bone 2, the second support bone 12, a part of the first main rib 41, and the connecting bone 3, and the lower potter's wheel 5 is connected to the umbrella shaft 7. The link is activated by moving it up and down along the .

Thus, the first rib 41 and the second rib 42 are
As shown in the figure, the second rib 42 can be folded by rotating counterclockwise in FIG. 1 relative to the first rib 41 from the state in which they both extend linearly. In this case, the first rib 41 and the second rib 4
2 are rotatably supported by a hook joint 43 (elephant nose joint), and a slide hook 9 provided near the outer end of the second support bone 12 and the inner end of the second main rib 42 A wire 91 having a spring 92 therebetween is attached. The slide hook 9 is a bow-shaped metal fitting as shown in the figure, and is fixed near the outer end of the second support bone 12, and the wire 9
By inserting this metal fitting into the hole at the inner end of 1,
The inner end of the wire 91 is slidably locked along the slide hook 9.

The structure in which the main rib is divided into two parts and foldable as described above was first proposed by the present inventor in Japanese Patent Application No. 56-142403.
The method disclosed in Japanese Patent Publication No. 60-30203 can be adopted. By dividing the main rib 4 into the first main rib 41 and the second main rib 42 as described above and connecting them with the slide hook 9 and the wire 91 as described above, when closing the umbrella, the first main rib 41 and the second main rib 42 are connected as shown in FIG. The main rib 41 and the second main rib 42 are folded over each other, and when the umbrella is opened, the inner end of the second main rib 42 is pulled by the wire 91 and rotated relative to the first main rib 41. The main rib 41 and the second main rib 42 are automatically expanded into a straight line.

In the above embodiment, when opening the umbrella, when the lower potter's wheel 5 is pushed up toward the tip side along the umbrella shaft 7, the sub-branches 2 are expanded outward via the power bone 2'. , accordingly, the second support bone 12 becomes the first support bone 11
is pushed outward along the In such a case, a part of the sub-branch 2, the second sub-branch 12, and the first main bone 4
A link mechanism formed by a part of the first rib 1 and the connecting bone 3 is activated, and the first rib 41 is also expanded into an open state. At this time, the length of the support bone 1 is the sum of the length of the first support bone 11 and the second support bone 12.

At that time, the first rib 41 and the second rib 42 are also expanded in a straight line by the action of the slide hook 9 and the wire 91 to form an open umbrella state, thereby forming the fifth rib.
Achieves a large opening radius equivalent to that of the conventional western umbrella shown in the figure.

On the other hand, when closing the umbrella, when the lower potter's wheel 5 is pulled down toward the hand along the umbrella shaft, the sub-branch 2 is drawn toward the umbrella shaft 7, and the second branch 12 is also drawn toward the umbrella shaft. As a result, the first support rib 11 and the second support bone 12 contract, and at the same time, the link mechanism is deformed and the wire 91 is loosened, so that the second support rib 42 is turned against the first support rib 41 as shown in FIG. It is rotated clockwise and folded over the first rib 41, resulting in a short folded state as shown in FIG.

In conventional folding Western umbrellas, the length when folded is generally the length when the support and main ribs are folded, but in the Western umbrella according to the present invention, In this case, the strut 1 can be divided into the first strut 11 and the second strut 12, and one of them can be inserted into the other to reduce the size, so the length when folded is shorter than that of the conventional one. It is possible to make it significantly shorter, and the main rib 4 is also shorter than the first main rib 41.
Since it is divided into a second rib 42 and a second main rib 42, when it is folded, it is possible to achieve an extremely short folded state as shown in FIG.

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

For example, the radius of the umbrella when it is opened, that is, the length from the base of the umbrella to the tip of the umbrella, is 500 for both.
mm, and the length of the hand required for the grip handle is 50
Let it be mm.

In such a case, since conventional folding umbrellas are folded in half, the length when folded is: (500 mm - 50 mm) ÷ 2 + 50 mm = 275 mm.

On the other hand, the Western umbrella according to the present invention has a substantially four-fold structure, with the supporting ribs being divided into two and the main rib being divided into two, so the length when folded is: (500 mm - 50 mm) ÷ 4+50mm=162.5mm.

Therefore, the difference between the length when the conventional Western umbrella is folded and the length when the Western umbrella according to the present invention shown in Fig. 2 is folded is 275 mm - 162.5 mm = approximately 113 mm. This can be significantly shortened compared to .

Therefore, in response to the fact that the umbrella ribs are folded into four as described above to significantly shorten the length when folded, the umbrella shaft 7 used in the telescopic folding type western umbrella according to the present invention is also divided into four parts. is recommended. That is, Figures 3 and 4
As shown in the figure, the three-stage telescoping umbrella shaft is made up of a combination of a biconcave tube 71, a single concave tube 72, and a circular tube 73, which are used in the umbrella shaft of a conventional folding umbrella, and further has a plurality of concave and convex portions. A circular convex tube 74 is added and a total of four shafts are combined in a nested manner to form a four-stage telescoping umbrella shaft,
If the total length when extended is made equal to that of a conventional three-stage telescopic umbrella shaft, the length when folded will be further shortened than before, making it convenient to carry.

[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 within the scope of its purpose, the present invention incorporates all the features that a person skilled in the art can easily conceive from the above explanation and known techniques. It is intended to encompass modified embodiments.

[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, and Fig. 2 is an illustration of the folding of the umbrella rib of the western umbrella according to the present invention shown in Fig. 1. An explanatory diagram showing the process; FIG. 3 is a perspective view showing an example of an umbrella shaft used in a Western umbrella according to the present invention;
FIG. 4 is an axis-perpendicular cross-sectional view of the umbrella shaft shown in FIG. 3. 1... Spine, 2... Accessory bone, 2'... Power bone,
3... Connected bone, 4... Main bone, 5... Lower potter's wheel, 6
... Upper potter's wheel, 7 ... Umbrella shaft, 9 ... Slide hook, 10 ... Support bone, 11 ... First support bone, 12 ...
Second vertebrae, 13... Joint, 20... Accessory vertebrae, 30
... Connected bone, 40 ... Main bone, 41 ... First main bone,
42... Second rib, 43... Hook joint, 71...
...biconcave pipe, 72...single concave pipe, 73...circular pipe, 7
4...Circular convex tube, 91...Wire, 92...Spring.

Claims (1)

[Claims for Utility Model Registration] A telescopic folding Western umbrella having an umbrella structure consisting of the following components (a) to (j). (a) Upper potter's wheel 6 fixed to the stone end side of the umbrella shaft 7. (b) A lower potter's wheel 5 provided movably along the umbrella shaft 7. (c) First rib 4. (d) The outer end of the first rib (when the umbrella is opened, the one closer to the umbrella shaft is called the inside, and the one farther away is called the outside).
Same below. ), and has a dew point at its outer tip. (e) A power bone 2' whose inner end is pivotally supported by the lower potter's wheel 5. (f) A first support bone 11 whose inner end is pivoted to the power bone 2'. (g) The first support bone 11 is inserted into and out of the inner end portion of the first main rib 41 in a nested manner, and the second support member 11 is pivoted at an intermediate position near the inner end portion of the first main rib 41 at the outer end portion. Bone 12. (h) The inner end is pivoted to the upper potter's wheel 6, the outer end is pivoted to the inner end of the second support bone 12, and the outer end of the power bone 2' is located at an intermediate position. The accessory spine 2 is pivotally connected. (i) the inner end is pivoted at an intermediate position closer to the outer end than the pivot point of the power bone of the secondary support 2;
The outer end portion is pivotally attached to the inner end portion of the first main rib 41, so that a part of the first main rib 41, a part of the sub-branch 2, and the second support bone 12 are connected to each other.
A connecting bone 3 forming a link together. (j) A wire 91 with a spring 92 stretched between the slide hook 9 provided near the outer end of the second support bone 12 and the inner end of the second main rib 42.