JP2001061525A - Umbrella - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safely usable umbrella which can be easily opened and closed with a small force by dispensing with a conventional top spring. SOLUTION: A number of ribs have their respective rear ends pivotally supported on the front end of a shaft handle via an upper ring in such a manner that the ribs can deploy and fold radially. A tip made of a synthetic resin is fitted over the front end of each rib and a gore is stretched on the upper side of each rib and locked to the tip. A grip is provided at the rear end of the shaft handle, and each rib and the gore are deployed and folded by a sliding ring fitted around the shaft handle and by stretchers. In that case, the sliding ring 8 is slid in the opening direction of the umbrella, and with the upper end of the sliding ring 8 abutting the lower end of the upper ring 5, each rib 6 is held open by the stretching force of each stretcher 7. Thus, the umbrella can be opened and closed with a small force and used safely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a western umbrella which can be opened and closed easily with a small force and which can be used safely without the need for flipping.

[0002]

2. Description of the Related Art As shown in FIG. 3, as a conventional well-known umbrella A, a base end of a large number of ribs F can be radially expanded and folded through an upper potter's wheel E at a tip end of a shaft handle B. Support,
A tip J made of a synthetic resin is inserted into the tip of each rib F, and a cloth (not shown) is stretched over each rib F, and the tip is integrally fixed to the tip J. Is provided with a grip C at a base end thereof, and a sliding wheel H inserted through the shaft handle B.
Then, the ribs F and the upholstery are unfolded and folded by the receiving bone G, and a stone foot D is provided at the tip of the shaft handle B.
There is an apparatus provided with a flipper I for locking and unlocking the sliding wheel H while the ribs F and the upholstery are deployed.

[0003] In the conventional umbrella A, when the ribs F and the upholstery are deployed in a used state, the sliding wheel H is pushed up along the shaft handle B to be locked to the flipper I, and when folded, By pressing down the flipper I which holds the sliding wheel H, the sliding wheel H is lowered along the shaft handle B.

[0004]

When the umbrella A is opened and closed as described above, the sliding wheel H is pushed up along the shaft handle B and is locked to the flipper I to put it into use. Pushing down the flipper I, which locks the potter's wheel H in use, releases the lock of the potter's wheel H and folds it. There was something. In addition, there is a problem that a finger may be pinched between the sliding wheel H when the upper flipping I is depressed when folded.

The present invention has been made in view of the above-mentioned circumstances. When the umbrella is opened and the umbrella is opened, the sliding wheel is pushed up along the shaft handle and the upper end of the sliding wheel is moved to the lower end of the upper wheel. The umbrella can be held by holding the ribs and upholstery in an open state only by abutment of the receiving bone, and when closing the umbrella, it is sufficient to push down the sliding wheel along the shaft handle. The purpose is to provide.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a pivotal support for radially expanding and collapsing a base end of a large number of ribs at a tip end of a shaft handle through a potter's wheel. An insert made of synthetic resin is inserted into the distal end of each rib, and a tension cloth is stretched on the upper side of each rib to lock it on the outlet, and a grip is provided at the base end of the shaft handle. The above ribs and upholstery are unfolded by the sliding wheel and the receiving bone inserted into the handle,
In a folded western umbrella, the sliding wheel was slid in the opening direction of the umbrella, and each rib was opened by the tension of the receiving bone, with the upper end of the sliding wheel contacting the lower end of the upper wheel. It is characterized in that it is kept in a state.

[0007]

With the above construction, the western umbrella of the present invention is constructed such that, when the umbrella is opened, the sliding wheel is pushed up along the shaft handle so that the upper end of the sliding wheel contacts the lower end of the upper wheel. Each rib and the upholstery are held in an open state by the tension force. Further, when closing the umbrella which has been opened in use, it can be closed simply by pushing down the sliding wheel with a slight force along the shaft handle. Further, since there is no repelling in the conventional umbrella, the configuration is simplified and the finger is not pinched.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a western umbrella according to the present invention will be specifically described with reference to the accompanying drawings.

1 and 2, the umbrella 1 has a shaft handle 2
The grip 3 is provided at the base end of the sword, and the foot 4 is provided at the tip, and the bases of a number of ribs 6 are radially unfolded via the potter's wheel 5 on the tip side of the shaft handle 2 immediately below the foot 4. It is pivotally supported. A distal end of a receiving bone 7 is pivotally attached to an intermediate portion of each of the ribs 6, and a proximal end of each receiving bone 7 is pivotally supported by a sliding wheel 8 inserted through the shaft handle 2. Above each rib 6, a tension cloth (not shown) is stretched. A tip 9 made of a synthetic resin is fitted into the tip of each rib 6, and the tip of the upholstery is integrally fixed to each tip 9. In the present invention, unlike a conventional western umbrella, there is no flick that locks the sliding wheel 8 on the shaft handle 2 when the umbrella is opened and releases the lock when the umbrella is folded.

In the western umbrella 1 of the present invention, when the umbrella is opened, when the sliding wheel 8 is pushed up in the direction of the arrow as shown in FIG. 1, the upper end portion of the sliding wheel 8 is raised as shown in FIG. At the time of contact with the lower end of the rib 5, the ribs 6 are held open by the tension of the receiving bone 7. When closing the umbrella, by slightly pulling down the sliding wheel 8, the tension force of the receiving bone 7 is released, and each rib 6 and the upholstery are closed. Although not shown, a holder for holding the rib 6 and the upholstery in a closed state is provided on the outer peripheral portion of the upholstery or the grip 3.

As shown in FIGS. 1 to 5, the tip 9 according to the present invention has a rib 6 at the base end of the tip 9 having a rounded tip.
Are provided with fitting projections that fit into the fitting recesses formed at the distal end of the fitting. The fitting projection of the tip 9 can be moved up and down through a fitting space into which the tip including the fitting recess of the rib 6 is fitted, and when the tip 9 is fitted into the tip of the rib 6. The fitting projection is fitted into the fitting recess and locked, so that even when a force in the direction opposite to the fitting direction is applied to the recess 9, the recess 9 does not easily come out. The lock between the fitting projection and the fitting recess is released, and the tip 9 can be removed from the rib 6.

As the upholstery cloth stretched over the western umbrella 1, an ethylene vinyl acetate copolymer (abbreviation: EVA) is used. This EVA is made of polyethylene (POLYETHYL)
ENE) 83.5%, vinyl acetate (VINYL)
ACETATE) 14.0%, pigment (PIBMENT)
2.5%.

The properties and processing conditions of the above EVA are as follows. [Molding conditions]-Injection molding cylinder temperature 175-220-Injection mold temperature 20-60-Injection molding shrinkage% 0.7-3.5-Injection molding flow length L / t 320-Extrusion processing 150- 195

[Secondary workability] ・ Coating / printing possible ・ Vacuum deposition / sputtering possible ・ Hot stamping possible ・ Ultrasonic welding not possible

[Density] JIS K7112 g / cm ² 0.922 to 0.943

[0016] [Mechanical Properties] Tensile strength JIS K7113 kgf ^/ cm 2 145~265 · elongation JIS K7113% 300 to 750, tensile elastic modulus ^{JIS K7113 10 3 kgf / cm 2} 0.5~1.9 · Impact Strength (Izod) JIS K7110 kgfcm / cm ^{2 No} damage ・ Hardness (Durometer) JIS K7215 D17-45

[Thermal Properties]-Melting point / Crystal melting point: 103-108-Linear expansion coefficient: ^10-5 cm / cm / t 16-20

[Others] Transparency Transparency Water absorption (24 hours) JIS K7209% 0.05 to 0.13

The EVA used for the upholstery of the umbrella 1 according to the present invention has the above-mentioned properties and processing conditions, so that when the EVA is folded and stored when not in use, the fabric surfaces adhere to each other even in a wet state. It can be unfolded smoothly at the time of use.

In addition, EVA contains only carbon dioxide (CO ₂ ) and water (H ₂ O) as its incineration-generating components.
No harmful components (toxic gases) are generated, and the combustion temperature is low, and the incinerator is not damaged. Therefore, umbrella can not be used,
When the upholstery cloth 3 is incinerated, it can be safely incinerated.

In addition, not only the above-mentioned ethylene vinyl acetate copolymer (EVA) but also various chemically synthesized films such as nylon and polyethylene may be used for the upholstery.

[0022]

As described above, according to the western umbrella of the present invention, the sliding wheel is slid in the direction in which the umbrella opens, and the upper end of the sliding wheel contacts the lower end of the upper wheel. Because each rib is kept open by the tension of the receiving bone,
To open the umbrella, simply push up the sliding wheel along the shaft handle and bring the upper end of the sliding wheel into contact with the lower end of the upper wheel. It is kept in a state and can be used. Further, when closing the umbrella which has been opened in use, the sliding wheel can be easily closed only by pushing down the sliding wheel with a slight force along the shaft handle. In addition, the conventional umbrella does not need to be flipped over, which simplifies the construction and prevents the fingers from being caught between the sliding wheel and the old umbrella. And can be used safely.

[Brief description of the drawings]

FIG. 1 is a partial side view of a western umbrella according to the present invention.

FIG. 2 is a partial side view in a state where the umbrella is opened.

FIG. 3 is a partial side view of a conventional western umbrella.

[Explanation of symbols]

 1 Western umbrella 2 Main rib 3 Grip 4 Stone foot 5 Upper wheel 6 Main rib 7 Receiving bone 8 Sliding wheel 9 Outcrop

Claims (1)

[Claims] 1. A base end of a large number of ribs is radially developed and foldably pivotally supported on a tip end of a shaft handle via a potter's wheel, and a tip made of synthetic resin is attached to a tip end of each of the ribs. The upper and lower ribs are fitted with an upholstery cloth, and the upper side of the ribs are hooked to the dew. The grip is provided at the base end of the shaft handle. Unfold the cloth,
In the folded western umbrella, the sliding wheel was slid in the opening direction of the umbrella, and each rib was opened by the tension of the receiving bone, with the upper end of the sliding wheel abutting against the lower end of the upper wheel. A western umbrella characterized by being held in a state.