JPH0241107A - Umbrella - Google Patents

Abstract

PURPOSE:To thin the thickness of a collapsed umbrella for making the umbrella compact by mounting the rear ends of a plurality of expansion rods 5 expansible radially from a base member to the base member at predetermined circumferential intervals, while mounting the peripheral edge of a sheet member to the distal ends of respective expansion rods. CONSTITUTION:While a plurality of expansion rods 5... expansible radially from a base member 4 are mounted to the base member 4 at predetermined circumferential intervals, the peripheral edge of a sheet members 6 is mounted to the distal ends of the respective expansion rods 5... to constitute an umbrella body 2. An umbrella 1 is set to the usable condition for avoiding rain or the like by expanding the expansion rods 5... radially from the base member 4 to expand the sheet member 6 mounted to the distal ends of said rods. On the other hand, when the expansion rods 5... are contracted, the sheet member 6 is also contracted so that the umbrella is set to the unusable condition. Then, the sheet member 6 is housed in the base member 4 so that the umbrella is collapsed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an umbrella that can be folded compactly.

[Conventional technology]

Umbrellas used to measure rainfall, etc. are widely used, but most conventional umbrellas are Western umbrellas.

The basic structure of a Western umbrella consists of an umbrella main body covered with a sheet member to protect from rain and the like, and an umbrella shaft that supports the umbrella main body at its upper end and has a handle at its lower end.

Further, the umbrella main body includes a plurality of ribs arranged radially, the rear end of each rib is rotatably attached to the upper end of the umbrella shaft, and the middle portion of each rib is bendable. On the other hand, the umbrella shaft is equipped with a freely sliding potter's wheel (sliding ring),
The potter's wheel and each master rib are connected by a plurality of supporting bones. Then, the peripheral edge portion of the sheet member is attached to the tip of each rib, thereby forming an umbrella body.

Therefore, when in use, by sliding the potter's wheel above the umbrella shaft, the umbrella body can be expanded.

On the other hand, when not in use, the umbrella main body can be folded by sliding the potter's wheel toward the handle, and can be folded by bending the middle part of each rib.

[Problem to be solved by the invention]

However, the conventional umbrella described above has the following problems to be solved.

First of all, if you have a compact and lightweight umbrella, you can store it in your hand pack and carry it with you at all times, so you won't get wet when it rains unexpectedly, which is extremely convenient.However, traditional umbrellas cannot be folded. The size of the edges is far from compact and lightweight, and portability and storage are inadequate.

Second, since the external shape when folded is fixed to a round bar shape, the degree of freedom in shape design is extremely small, and diversity and expandability are lacking.

The present invention further aims to provide an umbrella based on a novel structure which overcomes the problems existing in the prior art.

[Means to solve the problem]

The umbrella l according to the present invention includes an umbrella main body portion covered with a sheet member,
When constructing an umbrella including an umbrella shaft that supports the umbrella body, a plurality of telescoping rods 5 that can extend in radial directions from the base member 4 are placed at predetermined intervals in the circumferential direction of the base member 4. At the same time, each telescopic rod 5...
It is characterized in that the umbrella main body 2 is constructed by attaching the peripheral edge of the sheet member 6 to the tip of the umbrella. Further, depending on the optimum form, each of the telescopic rods 5... can be provided so as to be inclined downward at a predetermined angle in the radial direction, and with other forms, each of the telescopic rods 5...
Between the tip of ... and the base member 4, there is a telescopic rod 5...
When the wire member 7... is stretched, the telescopic rod 5 becomes tense.
It is possible to provide a tensioning mechanism 8 that curves the distal end side of ... downward.

[For production]

Next, the operation of the present invention will be explained.

In the umbrella 1 according to the present invention, when the telescopic rods 5 are extended in the radial direction from the base member 4, the sheet member 6 attached to the tip thereof is expanded, and the umbrella 1 is in a usable state in which rain and the like can be avoided. On the other hand, if the telescopic rod 5... is shortened,
The seat member 6 also shrinks and becomes unused. On this occasion,
The sheet member 6 is stored in the base member 4 and is in a folded state.

〔Example〕

Next, preferred embodiments of the present invention will be described in detail based on the drawings.

First, the structure of an umbrella 1 according to the present invention will be explained with reference to FIGS. 1 to 4.

The umbrella 1 includes an umbrella main body part 2 for both sides and an umbrella shaft part 3 that supports the umbrella main body part 2.

The umbrella main body 2 has a square plane and includes a base member 4 made of a plastic material or the like having a predetermined thickness. At the four corners of the upper surface 4u of the base member 4, there are support pillars I L and
... are provided, and the rear ends of telescopic rods 5 ... are rotatably attached to each support section 11 .... Further, a concave sheet storage portion 10 is provided on the upper surface 4u located inwardly of the telescopic rods 5, in which a sheet member 6, which will be described later, can be stored. Note that the telescopic rod 5 is a pipe-shaped member 5a with different diameters,
A publicly known combination of 5b...5e in a multi-stage manner can be used.

Further, each telescopic rod 5... can be rotated by a predetermined angle around the support section If... to set its direction. In this case, it is desirable to provide click points that can be temporarily fixed in radial directions centering on the base member 4. Furthermore, as shown in FIG.
The telescopic rod 5 is formed to be inclined downward by a predetermined angle when set in the radial direction. Note that the telescopic rod 5 is arranged so that it fits within the upper surface 4u of the base member 4 when it is shortened (see FIG. 4).

On the other hand, the four corners of a square sheet member 6 are attached to the tip of each telescopic rod 5, that is, the tip of the innermost small-diameter pipe-like member 5e. The sheet member 6 is made of a waterproof sheet material that is as thin as possible.

On the other hand, the umbrella shaft portion 3 is constructed using an extensible pipe 15 having a rectangular cross section, for example, as shown in FIG.

In this case, it is desirable that the size of the negative side surface be the same as the side surface of the base member 4. The telescopic pipe 15 is a multi-stage combination of square pipe-like members 15a, 15b...15d of different diameters, and a bolt part 16 is provided at the tip of the innermost square pipe-like member 15d. It can be attached to and detached from a nut portion 19 provided at the center of the lower surface 4d of the base member 4 by screwing. Further, the outermost square pipe-shaped member 15a has irregularities on its surface to prevent slipping, and is used as a grip 17 (handle portion).

In addition, the reference numeral 18 in FIG. 4 indicates a case that can accommodate the folded middle body part 2 and umbrella shaft part 3. The size of the case 18 can be selected to be, for example, the size of a book to improve storage and portability.

Next, how to use the umbrella l will be explained.

First, when not in use, each telescoping rod 5 of the middle body part 2 is shortened as shown in FIG.
At the same time, the sheet member 6 is placed in the sheet storage section 1.
Store to 0. On the other hand, the umbrella shaft portion 3 is also shortened, removed from the base member 4, and stored in the case 18 side by side with the middle body portion 2.

On the other hand, when in use, the middle main body part 2 and the umbrella shaft part 3 are taken out from the case 18. The umbrella shaft portion 3 is fixed by screwing the bolt portion 16 into a nut portion 19 provided on the lower surface 4d of the base member 4, and is expanded.

Further, the middle main body section 2 rotates each telescopic rod 5 to a position radial to the base member 4, and extends it at this position. As a result, the sheet member 6 also expands and the first
As shown in the figure, it can be used in a state where the plane is square.

Next, other embodiments will be described.

5 and 6 show the telescopic rope 5... and the base member 4.
An embodiment is shown in which it is attached so that it can be extended in the horizontal direction.

Therefore, in this embodiment, the wire member 7 and
... is provided with a tension mechanism 8 that pulls the tips of the telescopic rods 5 downward. The tension mechanism 8 is a wire member 7.
A total of four wire reels 20a, 20 wound with...
b, 20c, and 20d.

Each wire reel 20a... is equipped with a clutch mechanism that allows the wire member 7 to be rotated individually in the feeding direction of the wire member 7, and simultaneously rotated in the winding direction by an external handle or the like. On the other hand, a total of four wire reels 21a, 21b, 21c, and 21d configured similarly to the wire reels 20a to 20d are provided above the wire reel 20a, and wire members 22, . . . are wound thereon. Note that each wire member 7
... and 22... utilize flexible and strong materials.

In addition, each wire member 7... is connected to a guide tube 23...
- and attach it to the external tip of the pipe-shaped member 5e. The guide tubes 23 are for guiding the wire members 7, and their inner ends are fixed to the base member 4. On the other hand, the wire member 2 in each wire reel 21a to 21d
2... is attached to the inner tip of the pipe-like member 5e through the guide tube 24... and then through the inside of the telescopic rod 5.... The guide tubes 24 are also formed in the same manner as the guide tubes 23, and their inner ends are fixed to the base member 4, and their outer ends are fixed to the telescopic rods 5.

Therefore, by selecting the length of the wire member 7..., when each telescopic rod 5... is extended to its maximum position, the wire member 7... can be tensioned as shown in FIGS. 5 and 6. , the distal ends of the telescopic rods 5... can be curved downward. In addition, the wire reels 20a... and 21a...
If the wire members 7 and 22 are rotated in the winding direction, the wire members 7 and 22 are simultaneously wound, thereby allowing the telescopic rods 5 to be shortened at the same time.

On the other hand, FIG. 7 shows an embodiment in which the base member 4 is constructed in two stages by an upper base member 4a and a lower base member 4b. In this embodiment, each base member 4a and 4b
The centers of the two are connected by a shaft portion 25 that is rotatable within a predetermined angular range. Further, each base member 4a and 4b is provided with four telescopic rods 5, respectively. As a result, the telescopic rod 5 is attached to the main body, so that by rotating each base member 4a and 4b by 45 degrees relative to each other during use, the telescopic rod 5 can be extended in the direction of the claw. The sheet member 6 can have a helical shape.

Although the embodiments have been described in detail above, the present invention is not limited to these embodiments.

For example, although the case where the base member is a quadrilateral is illustrated, triangular formation can also be applied to any polygon of pentagon or more. In this case, the shape of the base, the shape of the member, the number of telescopic rods, etc. may be changed depending on the number of corners. The base member can also be implemented in any multi-stage format. Furthermore, although the telescopic rod is rotatably attached to a corner of the base member, it may be fixedly attached with the radial direction directed in advance at a corner or near the center of the base member. Other detailed configurations, shapes, quantities, materials, etc. can be arbitrarily implemented without departing from the gist of the present invention.

〔Effect of the invention〕

As described above, in the umbrella according to the present invention, the rear ends of a plurality of telescoping rods that can be extended in a radial direction from a base member are attached at predetermined intervals in the circumferential direction of the base member, and a sheet member is attached to the tip of each telescoping rod. Since the umbrella main body is formed by attaching the peripheral edge of the umbrella, the following effects can be obtained.

■ The product can be made much smaller and more compact by being thinner when folded, offering excellent portability, storage, and convenience.

■ There is a large degree of freedom in selecting the external shape, and triangular, square, etc. shapes can be manufactured arbitrarily, providing excellent versatility and expandability.

[Brief explanation of the drawing]

Figure 1: Bottom view of the umbrella according to the present invention in an unfolded state, Figure 2. Partial cross-sectional front view of the umbrella in an unfolded state, Figure 3. Partially sectional front view, Figure 4.2 A perspective view of the vehicle in an unused state, Figure 5m: A front view of an umbrella according to another embodiment of the present invention, Figure 6: A configuration diagram of the tension mechanism in the vehicle. 7th m: An explanatory diagram of the principle of an umbrella according to another embodiment of the present invention. In the drawings, 1: Umbrella 3: Umbrella shaft 5...: Telescopic rod 7...: Wire member 2: Umbrella main body 4: Base member 6: Sheet member 8: Tension mechanism

Claims (1)

[Scope of Claims] [1] An umbrella comprising an umbrella main body covered with a sheet member and an umbrella shaft supporting the umbrella main body, in which a plurality of telescoping rods extendable in radial directions from the base member are provided. An umbrella characterized in that the umbrella body is constructed by attaching sheet members at predetermined intervals in the circumferential direction of a base member, and attaching the peripheral edge portions of sheet members to the tips of each telescopic rod. [2] The umbrella according to claim 1, wherein the telescopic rod is inclined downward at a predetermined angle in the radial direction. [3] A tensioning mechanism is provided between the tip of the telescoping rod and the base member to tension the wire member when the telescoping rod is extended, thereby bending the distal end of the telescoping rod downward. umbrella.