| 摘要 |
A locking method for preventing an umbrella from opening by a locking device and a large diameter part forming member, wherein the locking device includes a fixing member and a lock body, the large diameter part forming member is a member for forming one or more large diameter part when the umbrella to be locked is closed, said locking method comprises: creating a part in which a cross-sectional outside diameter vertical to a shaft direction of the umbrella tube is narrower than outside diameters of an upper part and a lower part by placing the large diameter part forming member on the umbrella tube or a part of the rib between the runner and the ferrule or contacting a stretcher before closing the umbrella and by closing the umbrella, placing the part of the umbrella where the cross-sectional outside diameter vertical to the shaft direction of the umbrella tube is narrower than the outside diameters of the upper part and the lower part, in a loop formed with the fixing member and the lock body; and preventing an umbrella from opening by locking the umbrella with the locking device while fastening the umbrella with the fixing member.
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