Winding – tensioning – or guiding – Reeling device – With particular drive
Reexamination Certificate
1999-06-02
2001-02-06
Canfield, Robert (Department: 3635)
Winding, tensioning, or guiding
Reeling device
With particular drive
C242S395000, C135S020300
Reexamination Certificate
active
06182917
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an electric stretching/collecting device for a parasol, in which a motor is used to automatically stretch or collect the parasol.
When a crank is switched, the electrically driving operation is switched to a manually driving operation. A remote controller also serves to control the stretching/collecting operation of the parasol so that the stretching/collecting operation of a large parasol can be more conveniently performed with strength saved.
A conventional parasol is stretched or collected by a cord winding mechanism which is manually operated via a crank. Such operation is laborious and time-consuming. In addition, articles are often placed at a position near the crank to limit the space for the cranking operation of the crank so that the cranking operation is often obstacled.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide an electric stretching/collecting device for a parasol, in which the stretching/collecting operation of the parasol can be switched between an electrical operation by a touch switch or a remote controller and a manual operation by a crank so that the stretching/collecting operation of a large parasol can be more conveniently performed with strength saved.
According to the above objects, the electric stretching/collecting device for a parasol of the present invention includes a touch switch, a remote control means, a motor driving mechanism, a manually operated clutch mechanism and a ratchet damper mechanism. The touch switch and the remote control means are respectively designed with related circuit elements connected to a motor. A first bevel gear is rotatably disposed on an output shaft of the motor for driving a second bevel gear of a horizontal transmission shaft for electrically stretching/collecting the parasol by the touch switch or remote control means. A manually operated clutch mechanism is disposed at one end of the transmission shaft, which is controlled by a crank to detachably engage with the transmission shaft and drive the same with a clutching effect. Therefore, the operation can be switched between an electric measure and a manual measure. In addition, a ratchet damper mechanism is disposed at a rear end of the transmission shaft, whereby the transmission shaft is one-way rotatable and when the parasol is stretched open to a maximum limit position, the damper mechanism serves to prevent the parasol from downward sliding.
The present invention can be best understood through the following description and accompanying drawings wherein:
REFERENCES:
patent: 4386621 (1983-06-01), Redl
patent: 5711333 (1998-01-01), Vanderminden, Sr.
Bacon & Thomas PLLC
Canfield Robert
Great Mission Trading Limited
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