Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Reexamination Certificate
2000-12-05
2002-04-16
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Distally supported on radial arm
C416S24400R
Reexamination Certificate
active
06371729
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention is related to an assembling structure for vane and vane bracket of ceiling fan, which enables a user to quickly and conveniently assemble the vane bracket and the vane with each other.
FIG. 6
shows the vane
81
and vane bracket
82
of a conventional ceiling fan. The vane bracket
82
is formed with three thread holes
821
. The vane
81
is formed with three through holes
811
corresponding to the thread holes
821
. Bolts
83
are passed through the through holes
811
of the vane
81
and screwed into the thread holes
821
of the vane bracket
82
so as to fix the vane
81
on the vane bracket
82
.
The vanes
81
and the vane brackets
82
are separately packed and assembled when installing the ceiling fan. A general ceiling fan has four to seven sets of vanes
81
and vane brackets
82
. When assembled, it is necessary to tighten three bolts
83
for assembling each set of vane
81
and vane bracket
82
. Accordingly, it is necessary to tighten at least
12
~
21
bolts
83
for assembling all the vanes
81
and the vane brackets
82
. This is a troublesome procedure for a DIY user.
FIGS. 7 and 8
show the vane
91
and vane bracket
92
of another type of conventional ceiling fan. The vane bracket
92
has multiple posts
93
. Each post
93
has two upward projecting stop blocks
931
. When a stop plate
932
is locked on the post, the stop blocks
931
serve to restrict the stop plate
932
. The vane bracket
92
further has a pivot block
94
between the posts
93
for pivotally connecting with an eccentric press lever
95
. The vane
91
is formed with slots
911
,
912
for the stop plate
932
and eccentric press lever
95
to pass therethrough.
When connecting the vane
91
with the vane bracket
92
, the slots
911
,
912
of the vane
91
are aimed at the stop plate
932
and eccentric press lever
95
and then fitted onto the vane bracket
92
. The stop plate
932
and eccentric press lever
95
extend out of the slots
911
,
912
. Then the vane
91
is pulled outward to engage the stop plate
932
with top face of the vane
91
. Then a washer
96
is fitted under the eccentric press lever
95
and the eccentric press lever
95
is depressed to press the washer
96
. At this time, the vane
91
is pressed against and connected with the vane bracket
92
.
The above vane
91
and vane bracket
92
have complicated structure and are manufactured at high cost. Moreover, it is troublesome to assemble the vane and vane bracket for a DIY user. In the case that the stop plate
932
and eccentric press lever
95
are previously assembled in the factory, the cost for assembling procedure is increased. Furthermore, the vane
91
is formed with several slots
911
,
912
which weaken the strength of the vane
91
. Therefore, the vane
91
is liable to break.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide an assembling structure for vane and vane bracket of ceiling fan, including a vane bracket and a vane. The vane bracket has several bosses and at least one projecting post. A resilient press board is pivotally disposed on top face of the projecting post. The vane is formed with dents complementary to the bosses of the vane bracket for inserting the bosses into the dents. The vane is further formed with a slot corresponding to the projecting post of the vane bracket. The press board is passed through the slot. The vane is formed with a locating section in which the press section of the press board is located. When connecting the vane bracket with the vane, the press board is rotated to make a press section of the press board resiliently pressed against and located in the locating section of the vane by means of the resilient force of the press board so as to quickly and conveniently fixedly connect the vane bracket with the vane.
The present invention can be best understood through the following description and accompanying drawings wherein:
REFERENCES:
patent: 5593283 (1997-01-01), Scott
patent: 6010306 (2000-01-01), Buchner et al.
Look Edward K.
Nguyen Ninh
Rosenberg , Klein & Lee
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