JP2011160908A - Wind-resistant and pressure-resistant structure of umbrella - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new wind-resistant and pressure-resistant structure of an umbrella which corresponds to wind or pressure from any directions inside and outside, can be manufactured by comparatively simple methods, and to provide an umbrella which softens the shock at the time of opening/closing the umbrella and can be used more safely even by elder people or children. <P>SOLUTION: The handle or the base of the umbrella is hollow, a flange part or a projection is prepared on an axis inserted in the hollow part, the flange part or the projection is prepared on the hollow part, above and below the flange part or the projection of the axis, and an elastic body is prepared inside the hollow part, above and below the flange part or the projection of the axis. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an umbrella wind and pressure resistant structure. In the present invention, the term “umbrella” is a concept that includes not only umbrellas used by individuals such as vinyl umbrellas, rain umbrellas, and parasols, but also beach umbrellas and mountain umbrellas.

2. Description of the Related Art Conventionally, various umbrella structures have been disclosed that can cope with pressure when subjected to strong winds. Typically, there are 8 parent bones and support bones, but 12 are provided.
In addition, when a strong wind is applied to the back of the umbrella cloth, the strong breeze escapes when the beam bone warps upwards. There are umbrellas (for example, see Patent Document 1) that can easily return bones to a normal state with a light force, and those that have a through hole in a portion corresponding to a cap (for example, see Patent Document 2).

  However, the one that has a special structure in the potter's wheel has a complicated and fragile structure, and has a manufacturing problem. Also, in the case where the through-hole was provided in the part that corresponds to the cap cloth, water could enter depending on the direction of the wind, and it could only deal with the wind from the inside, and the effect was not sufficient .

  In recent years, one-touch umbrellas and automatic opening and closing umbrellas are widely sold, but they may be opened more strongly than necessary for elderly people and children. Also, large umbrellas such as beach umbrellas may be dangerous to handle for adults unless the pressure of the wind is relieved when used.

JP-A-11-332624 JP 2003-135119 A

  Therefore, the present invention is a new umbrella that can be manufactured by a relatively simple method, corresponding to wind or pressure from either the inside or the outside, from a viewpoint different from the conventional wind and pressure resistant structure. The purpose is to provide a wind resistant structure. Another object of the present invention is to provide an umbrella that can be used more safely by elderly people and children by relieving the shock at the time of opening and closing the umbrella.

In order to achieve the above object, the wind and pressure resistant structure of the umbrella of the present invention is:
The hand portion or the base portion is a hollow portion, and a flange portion or a convex portion is provided on the middle shaft inserted in the hollow portion,
Of the hollow part, the flange part or the convex part is provided on the upper part and the lower part of the flange part or the convex part of the middle shaft,
And it consists of the elastic body being provided in the upper part and the lower part of the flange part or convex part of the center shaft in the hollow.

  The elastic body is preferably a coil spring. .

In the present invention, unlike the conventional wind-resistant structure of an umbrella, the hand portion or the base portion is provided with a wind-resistant structure. And it is supposed that it has wind resistance with respect to both the upper side and the lower side by the flange part or convex part provided in the center shaft, and the elastic member provided above and below.
In addition, in this application, a hand part or a base part means the part which supports a center axis | shaft under the umbrella. An umbrella to be carried around by an individual refers to the hand portion, and the most widely used umbrella is a J-shaped one, but is not limited to this shape. In a large umbrella such as a beach umbrella, the base portion that supports the middle shaft is shown below, and the shape and the like are not limited in the same manner.

In order to prevent the middle shaft and the elastic member from popping out and to ensure vertical movement of the middle shaft, the hollow portion is provided with two flange portions or convex portions above and below the flange portion or convex portion provided on the middle shaft.
In other words, it is preferable that the flange portion or the convex portion provided on the center shaft or the hollow portion extends over the entire circumference, but it may be a half circumference or a part, and the center shaft and the elastic member do not protrude, and this application Any structure that exhibits the effects of the invention is acceptable.

  As the elastic member, a coil spring is most typically used, but other elastic members such as a sponge member such as urethane may be used. The strength of the elastic member may be appropriately selected depending on the size of the umbrella and the assumed usage pattern. Moreover, the range which can be moved up and down can be changed with an umbrella by adjusting about the length of a hollow part, the position of a flange part, or a convex part.

Since the present invention has the above-described configuration, it has elasticity against the wind from either the inside or the outside, and can absorb the force and reduce the pressure.
Moreover, since it absorbs by a hand part instead of a potter's wheel or a stone bump part, the pressure at the time of opening can be reduced in a one-touch umbrella etc., and it is easy to handle for elderly people and children.

  Furthermore, since the windproof structure is provided in the hand portion or the base portion, an external space is not required for the structure, and it is not excluded to further adopt the conventional windproof structure as described above. In addition, since it can be manufactured in the same way as an ordinary umbrella, the design of the umbrella is not restricted.

A book showing a general umbrella It is a conceptual diagram which shows the wind-resistant structure of the umbrella of invention. It is a figure which shows the wind-resistant structure of an umbrella when a pressure is applied from the inner side of an umbrella. It is a figure which shows the wind-resistant structure of an umbrella when a pressure is applied from the outer side of an umbrella. It is a figure which shows the other Example of this invention.

An example of an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing the entire umbrella, and FIG. 2 is a conceptual diagram (cross-sectional view) showing the wind-resistant structure of the umbrella of the present invention.

As shown in FIG. 1, the structure of a general umbrella 1 includes a tip protrusion 10, a main bone 11, a receiving bone 12, a potter's wheel 13, a shade 14, a central shaft 2, and a hand portion 3.
In the present invention, the hand portion 3 that supports the center shaft 2 is provided with a wind-resistant structure. In addition, the hand portion 3 is a base portion having a shape to be installed on the ground in the case of a large umbrella such as a beach umbrella, although there are many J-shaped caps that are usually used by individuals.

As shown in FIG. 2, the hand portion 3 is a hollow portion 4, and a flange portion 5 is provided on the center shaft 2 inserted into the hollow portion 4.
And the upper flange part 6 and the lower flange part 7 are provided in the upper part and the lower part of the flange part 5 of the center shaft 2 among the hollow parts 4,
In the hollow portion 4, an upper coil spring 8 and a lower coil spring 9 are provided on the upper and lower portions of the flange portion 5 of the central shaft 2, respectively.

Due to the presence of the flange portion 5 of the middle shaft, the upper flange portion 6 and the lower flange portion 7, the middle shaft 2, the upper coil spring 8 and the lower coil spring 9 do not jump out of the hand portion 3. The flange portion 5, the upper flange portion 6, and the lower flange portion 7 of the middle shaft preferably extend over the entire periphery, but as described above, it is not always necessary to extend over the entire periphery, and a half or a partial convex portion. It may be.
With the above configuration, the middle shaft 2 moves up and down with elasticity in response to pressure from either the inner side or the outer side, so that the force can be absorbed and the pressure reduced.

  FIG. 3 is a diagram showing a wind-resistant structure of the umbrella 1 when pressure is applied from the inside of the umbrella 1. Most typically, it is a case where the umbrella 1 is blown by the wind from the inside (lower side) with the umbrella 1 inserted. In such a case, the middle shaft 2 moves in the direction of the arrow to reduce the pressure caused by the wind. Due to the presence of the upper coil spring 8, the movement of the central shaft 2 is performed smoothly while absorbing the pressure. Therefore, the user of the umbrella can cope with the situation such as changing the direction of the umbrella in the meantime so as not to become a so-called “smooth”. . Large umbrellas, such as beach umbrellas, are dangerous if they suddenly fly, so that the time during which the force is absorbed can be handled and safety can be improved. When the pressure is weakened, it slowly returns to the original position (FIG. 2).

  FIG. 4 is a diagram showing the wind-resistant structure of the umbrella when pressure is applied from the outside of the umbrella. This is a case where pressure is applied from the opposite direction to that in FIG. 3, and in this case, the same effect as in FIG. 3 is obtained. That is, the middle shaft 2 moves in the direction of the arrow to reduce the pressure caused by the wind. Due to the presence of the lower coil spring 9, the movement of the middle shaft 2 is performed smoothly while absorbing pressure. And if a pressure weakens again, it will return to an original position (Drawing 2) slowly.

  FIG. 5 is a diagram showing another embodiment of the present invention. In this embodiment, the middle shaft 2 does not exist in the portion corresponding to the lower coil spring 9.

  The hollow portion 4 may be manufactured integrally with the hand portion 2 or may be formed as a member that is separately connected as a part of the hand portion 2. The position of the lower end of the hollow portion 4 is not particularly limited. For example, in a beach umbrella, the structure and effects of the present invention are not affected even if the entire base portion is hollow and the lower end is not closed. .

DESCRIPTION OF SYMBOLS 1 Umbrella 2 Middle axis | shaft 3 Hand part 4 Hollow part 5 Middle axis flange part 6 Upper flange part 7 Lower flange part 8 Upper coil spring 9 Lower coil spring 10 Stone protrusion 11 Master bone 12 Receiving bone 13 Crossbone 14 Cap

Claims (2)

The hand portion or the base portion is a hollow portion, and a flange portion or a convex portion is provided on the middle shaft inserted in the hollow portion,
Of the hollow part, the flange part or the convex part is provided on the upper part and the lower part of the flange part or the convex part of the middle shaft,
An umbrella wind-resistant and pressure-resistant structure, characterized in that an elastic body is provided in the hollow portion at the upper and lower portions of the flange portion or the convex portion of the central shaft. The windproof / pressure-resistant structure of an umbrella according to claim 1, wherein the elastic body is a coil spring.

Images