JPH052099Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a multi-stage folding Western umbrella rib, and particularly to a multi-stage folding Western umbrella rib that does not take up bulk when folded and can be folded into a thin and compact structure.

[Conventional technology]

Western umbrellas that can be folded into two or three tiers for convenient portability are now widely used, and the inventor of the present invention has previously developed a four-tiered umbrella in Utility Application No. 60-030403 and Utility Model Application No. 116921/1983. He revealed a Western-style umbrella.

However, as the number of folding stages increases, the number of umbrella ribs also increases, so even though the length is shortened, the thickness when folded increases, making it inconvenient to store and carry.

[Problem that the invention attempts to solve]

This invention was developed to solve the above-mentioned problems, and its purpose is to create a multi-stage structure that does not significantly increase the thickness when folded even if the number of folding stages is increased, making it convenient for storage and portability. Our purpose is to provide foldable Western umbrella ribs.

[Means for solving problems]

The above object is achieved by allowing adjacent umbrella ribs to come into close contact with each other when the umbrella is closed.

More specifically, the purpose of the present invention is to provide a first rib having a U-shaped cross section, the inner end of which is rotatably attached to the upper wheel, and the inner end of the first rib to the lower wheel rotatably attached to the lower wheel. , a first spine having a U-shaped cross section, the outer end of which is rotatably connected to an intermediate position of the first main rib, and the inner end of which is rotatably connected to near the inner end of the first rib. A linear second support bone is rotatably connected to the outside end of the first main rib by a connecting part provided near the inside end, and the second support bone is inserted through the inside end so as to be freely removable. A third support bone having a U-shaped cross section; a second rib rotatably connected to the outer end of the third support bone by a connecting portion provided near the inner end; and a second rib having a dew tip at the outer end. , a linear third rib whose inner end is rotatably attached to the outer end of the second rib, and an inner end of the first rib near the outer end of the attachment position of the first support rib. Rotatably connected to the position,
A linear connecting bone whose outer end is rotatably connected to the inner end of the second main rib, It opens on the side facing the second vertebrae, and at the connection with the first main bone, the bottom part is removed leaving the facing side walls;
The first main rib is rotatably held between the opposing side walls, and when the umbrella is closed, the part of the first main rib outside the connection point with the first support bone is made into the U-shaped groove. The width of the groove is selected so that both can be folded into a substantially straight line. The part facing the protruding part of the first rib is wide enough to accommodate the protruding part, and the other part is so that the edges of both side walls are in close contact with each other over almost their entire length. , is set to have the same width as the first rib, and the U-shaped cross section of the first rib opens on the side facing the connecting bone when the umbrella is closed, and the connecting bone leaves its outer end when the umbrella is closed. The shape of the first main rib and the connecting bone and the position of their connecting part are selected so that the first main rib and the connecting bone are completely housed inside the umbrella. The third rib and the second rib are configured so that they can come into close contact with each other over substantially their entire length when the umbrella is closed. This is achieved by a multi-stage folding umbrella rib that folds into a hippact.

[Effect]

If it is a multi-stage folding Western umbrella rib with the above structure,
When the umbrella is closed, the outer part of the first main rib from the connection point with the first support bone is accommodated in the U-shaped groove of the first support bone, so that the first support rib and the first support bone are in a substantially straight line. The connecting bone is almost completely accommodated within the U-shaped groove of the first main bone, and the protrusion of the first main bone that protrudes from the U-shaped groove of the first main bone is folded into the U-shaped groove of the third main bone. Because the umbrella is accommodated in the widened part of the groove, when the umbrella is closed, the five umbrella ribs, the first, second, third, first rib, and connecting bone, form two umbrella bones that are in close contact with each other. Since the second rib and the third rib are folded in close contact with these ribs, the present invention provides a multi-stage folding Western umbrella rib that is convenient for carrying and storing. This is something that can be provided.

〔Example〕

Hereinafter, the details of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is an explanatory diagram showing the umbrella rib according to the present invention in an open state, FIG. 2 is an explanatory diagram showing the umbrella rib shown in FIG. 1 in a partially folded state, and FIG. An explanatory diagram showing the state in which the umbrella rib shown in the figure is removed from the umbrella shaft, FIG. 4 is an explanatory diagram showing the umbrella rib shown in FIG. 3 in a completely closed state, and FIG. It is an exploded perspective view of the principal part of the umbrella rib shown in the figure.

In each figure, 1 is the first supporting bone, 2 is the third supporting bone, 3 is the second supporting bone, 4 is the first main rib, 5 is the second main rib, 6 is the connecting bone, and 7 is the third supporting bone. Main bone, 8 is upper potter's wheel,
9 is the lower potter's wheel, and 10 is the umbrella shaft.

In this specification, when the umbrella is completely opened, the side closer to the umbrella shaft will be referred to as the inside, and the side farther from the umbrella will be referred to as the outside.

As shown in FIGS. 1 and 2, the first rib 4 has a hole 4c formed in its inner end 4a (see FIG. 5).
It is rotatably attached to the upper potter's wheel 8 provided on the stone end side of the umbrella shaft 10 by using.

The lower potter's wheel 9 is coaxially movably attached to the umbrella shaft 10, and the inner end 1a of the first support 1 is inserted into the lower potter's wheel 9 using the hole 1c (see Fig. 5) made there. It is rotatably attached, and its outer end 1b is rotatably connected to a hole 42 formed in a protrusion 41 at an intermediate position of the first rib 4 through a hole 1e by an eyelet or an appropriate pin. ing.

The first support 1 consists of a member having a substantially U-shaped cross section perpendicular to its axis, and has a position 11a near its outer end (the fourth
(see figure), the bottom part of the U-shaped member is cut away leaving the opposing sides to form a fork shape, and the first rib 4 is inserted into the gap 11 between the opposing sides. Eyelets and the like are inserted into the hole 1e on the first support bone side and the hole 42 on the first main rib 4 side, so that both umbrella bones are rotatably connected.

The inner end of the second support 3 is rotatably connected to the hole 1d formed near the inner end of the first support 1 by an eyelet or the like. The outer end portion is slidably inserted into a pipe-shaped portion of the inner end portion 2a of the third support bone 2.

The inner end 2a of the third support rib 2 and the outer end 4b of the first main rib 4 are provided with a hole 24 in the protrusion 21 of the former.
and a hole 4d formed in the outer end 4b of the school building, and are rotatably connected by inserting an eyelet or the like and caulking the hole 4d.

The second main rib 5 is rotatably connected to the hole 2c made in the outer end 2b of the third support 2 by an eyelet or the like by a connecting fitting 51 attached to the inner end thereof,
A third rib 7 having a tip at its outer tip is attached to the outer end of the second rib 5 so as to be bendable.

Therefore, the inner end of the connecting bone 6 is closer to the outer end than the attachment position of the first support bone 1 of the protrusion 41 formed at the intermediate position between the hinge eye provided at the inner end and the first main rib 4. By inserting a pin into the hole 43 formed in the hole 43, it is rotatably connected to the first main rib 4, and the outer end of the connecting bone 6 is connected to the hinge eye provided at the outer end and the second main rib 4. It is rotatably connected by inserting a pin into a mounting hole provided at the inner end of a connecting fitting 51 attached to the inner end of the main rib 5 .

Thus, a quadrilateral link is formed by the connecting bone 6, a portion of the second rib 5, a portion of the first rib 4, and the third support bone 2.

Therefore, when the umbrella ribs connected to each other as described above are folded, they are folded into four short stages as shown in FIG. 2.

Therefore, the first rib 4, the second rib 5, and the first spine 1
and the third support bone 2 both have an axis-perpendicular cross section of approximately U.
The second support bone 3, the connecting bone 6, and the third main rib 7 are all made of wire rods having a round cross section.

The first support 1 has a U-shaped groove that opens on the side facing the second support 3 when the umbrella is opened, and
At the connection part 11 with the first main rib 4, the bottom part is removed leaving the opposing sides of the U-shaped cross section, and the first main rib 4
is rotatably held by these opposing side walls, and furthermore, when the umbrella is closed, the portion of the first main rib 4 outside the connection point with the first support bone 1 is constructed and housed in the U-shaped groove. The structure is such that both can be folded into a substantially straight line. Specifically, widened portions 14 and 15 are provided so as to accommodate the heads of eyelets, etc. that can be opened at the connecting portion 43 of the first main rib 4 and the connecting bone 6 and the connecting portion 24 of the third vertebra 2. When the umbrella is closed, the first rib 4 and the first rib 4 are folded into a substantially straight line.

The U-shaped groove of the third rib 2 is
The groove width is made wide in the portion facing the protrusion 41 of the first rib 4 when the umbrella is closed so that the protrusion can be accommodated, and in other portions the groove width is set to the same as the groove width of the first rib 4 so that the edges of the side walls of both sides are in close contact with each other over almost their entire length.

The U-shaped groove of the first rib 4 is open on the side facing the connecting bone 6 when the umbrella is closed, and when the umbrella is closed, the connecting bone 6 is completely inserted into this U-shaped groove with its outer end remaining. The shapes of the first main rib 4 and the connecting bone 6 and the position of the connecting portion 43 thereof are appropriately determined so that the first rib 4 and the connecting bone 6 are accommodated in the first rib 4 and the connecting bone 6.

The second main rib 5 and the third support rib 2 are configured so that they can come into close contact with each other over substantially their entire length when the umbrella is closed, and the third main rib 7 and the second main rib 5 are arranged so that they are close to each other when the umbrella is closed. They are configured so that they can come into close contact with each other over substantially the entire length of the two.

Therefore, when the umbrella rib is folded, as shown in FIG. 2 is in close contact over almost its entire length,
Furthermore, since the second rib 5 and the third rib 7 are also folded closely together, the umbrella can be folded extremely thin and compactly.

[Effect of the invention] Since the invention is constructed as described above, when the invention is used, the numerous ribs can be folded compactly without becoming bulky when folded, resulting in a multi-stage folding type that is convenient for carrying and storing. It can provide umbrella bones.

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

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the umbrella rib according to the present invention in an open state, FIG. 2 is an explanatory diagram showing the umbrella rib shown in FIG. 1 in a partially folded state, and FIG. FIG. 4 is an explanatory diagram showing the umbrella rib shown in FIG. 3 in a fully closed state. FIG. 5 is an explanatory diagram showing the umbrella rib shown in FIG. It is an exploded perspective view of the principal part of the umbrella bone shown in the figure. 1... First supporting bone, 2... Third supporting bone, 3... Second supporting bone, 4... First main bone, 5... Second main bone, 6...
Connecting bone, 7... Third rib, 8... Upper potter's wheel, 9...
...Lower potter's wheel, 10...umbrella shaft.

Claims (1)

[Claims for Utility Model Registration] A first rib 4 having a U-shaped cross section, the inner end of which is rotatably attached to the upper potter's wheel 8, and the inner end of which is rotatably attached to the lower potter's wheel 9, and the outer end A first support bone 1 having a U-shaped cross section is rotatably connected to an intermediate position of the first main rib 4; A linear second support bone 3 is rotatably connected to the outer end of the first main rib 4 by a connecting part 24 provided near the inner end, and the second support bone 3 can move in and out from the inner end. Cross section U inserted through
A second main rib 5 is rotatably connected to the outer end of the third support bone 2 by a connecting part 51 provided near the inner end, and has a dew point at the outer end. The inner end has a second rib 5.
A linear third main rib 7 is rotatably attached to the outer end of the first main rib 4, and the inner end is rotatable to an intermediate position closer to the outer end than the attachment position of the first support bone 1 of the first main rib 4. a linear connecting bone 6 whose outer end is rotatably connected to the inner end of the second main rib 5; The cross section of is open on the side facing the second support rib 3 when the umbrella is opened, and at the connecting part 11 with the first main rib 4, the bottom part is removed leaving the opposing side wall, and the first main rib 4 is opened. It is rotatably held by these opposing side walls, and furthermore, when the umbrella is closed, the portion of the first main rib 4 outside the connection point with the first support bone 1 is housed in the U-shaped groove. , the width of the groove is selected so that both can be folded substantially in a straight line, and the third support rib 2 has a U-shaped cross section that opens on the side facing the first rib 4 when the umbrella is closed. The portion of the first rib 4 facing the protruding portion 41 is wide enough to accommodate the protruding portion, and in other portions, the edges of both side walls are in close contact over substantially their entire length. The width of the first rib 4 is set to be the same as that of the first rib 4, and the U-shaped cross section of the first rib 4 opens on the side facing the connecting rib 6 when the umbrella is closed. The shapes of the first main rib 4 and the connecting bone 6 and the position of the connecting part 43 thereof are selected so that the outer end of the first main rib 4 and the connecting bone 6 are completely accommodated in the interior thereof, and the second main rib 5 and the third supporting bone 2 are configured to be in close contact with each other over substantially their entire length when the umbrella is closed, and the third rib 7 and the second rib 5 are configured to be in close contact with each other over substantially their entire length when the umbrella is closed. A multi-stage folding umbrella rib that can be folded into a compact size.