Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Reexamination Certificate
1999-12-16
2001-07-10
Stephan, Beth A. (Department: 3635)
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
C135S028000, C135S025400, C135S040000
Reexamination Certificate
active
06257257
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an automatic opening and closing structure of a collapsible umbrella and, more particularly, to an automatic opening and closing structure of a collapsible umbrella that comprises a hook provided inside the lower tube of the shaft, the hook catching to a bullet head within the shaft; a pin and a sliding block provided in the handle so that the button has two sections of pressing.
2. Description of the Prior Art
Umbrellas are indispensable tools in daily lives. Collapsible umbrellas, in particular, are very welcome because the umbrella ribs are collapsible. The umbrella can be collapsed for the convenience of carrying so as to prevent from being caught in the rain. However, current collapsible umbrellas have to be manually collapsed. When the user goes out by car or by bus in a rainy day, he or she has to manually collapse the umbrella before getting on the vehicle. At this moment, the user's clothes are likely to become wet due to the rain. So they are fairly inconvenient.
Therefore, to eliminate the disadvantages by manually collapsing umbrellas, there are umbrellas that can automatically open and close. The main structure is composed of a clasping structure at the bottom of the shaft catching a hook connected with a string in the shaft and a control device within the handle to achieve the object of automatic opening and closing. Nevertheless, the structure is pretty complicated and thus is not easy to fabricate. How to design a structure that simplifies the control device within the handle and the clasping structure in the shaft is the most urgent task.
In view of the many disadvantages described above, conventional items have imperfect designs and need to be improved. The inventor of this patent made great efforts in modification and improvement and, after many years of hard working and research, finally came up with this automatic opening and closing structure of a collapsible umbrella.
SUMMARY OF THE INVENTION
The present invention provides an automatic opening and closing structure of a collapsible umbrella that allows the user to open the umbrella to use by pressing a button on the handle and closing it by pressing again the button for storage.
Furthermore, the present invention provides an automatic opening and closing structure of a collapsible umbrella that does not only have such features as having a simple structure, easy to assemble, and being of highly practical value, but is also applicable to any type of collapsible umbrellas to increase their extra values.
The automatic opening and closing structure of a collapsible umbrella to achieve the above objects comprises a hook on a fixing position within a control tube, said hook being fixed thereby within the control; two openings on the surface of the control tube for the hook to extending out; a shaft for said control tube to be inserted into the lower tube of said shaft; two openings on the surface of the lower shaft corresponding to said two openings on said control tube. When the umbrella is completely closed, the hook catches a bullet head within the shaft, and a runner clasps the hook block on the button. The sliding block connecting to the button moves lower due to the pressing of the runner so that the hollow part thereabove matches one end of a pin within the handle. The other end of the pin is in the lower tube close to the hook in the control tube. When pressing the button on the handle, the runner would depart from the hook block on the button and move toward a notch which further stretches out the umbrella. The pin stays in the hollow part above the sliding block so that it would not be pressed by the pressing of the button. The sliding block that is pressed by the runner is restored back to the original position because of the spring connected therebelow. One end of the pin thus touches the bottom of the sliding block. When the user presses the button on the handle, the block moves and pushes the pin so that the other end of the pin touches the hook in the control tube. The hook is then pushed and extends out of the openings on the surface of the lower tube. The hook is separated from the bullet head and the bullet head moves upward due to the stretch of a string. By the spring in the main rib, the collapsible umbrella ribs are then collapsed to a compact structure.
REFERENCES:
patent: 5267583 (1993-12-01), Wu
patent: 5492140 (1996-02-01), Lin et al.
patent: 5505222 (1996-04-01), Lin et al.
patent: 5566698 (1996-10-01), Yu
patent: 5588454 (1996-12-01), Kou
patent: 5617889 (1997-04-01), Wu
patent: 5632290 (1997-05-01), Ling Kuo
patent: 5868151 (1999-02-01), Kuo
patent: 5992433 (1999-11-01), Chung-Kuang et al.
Bacon & Thomas PLLC
Stephan Beth A.
Yip Winnie
LandOfFree
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