CEILING FAN WITH BLADE HUB
A ceiling fan comprising a ceiling mount from which is suspended a motor by a downrod. The motor has a non-rotating motor shaft and a rotor rotating about the non-rotating motor shaft. Fan blades are coupled to the rotor a blade holder having a first end received within the first receiver and a second end received within the second receiver. A lock assembly is provided on the first end for securing the blade to the blade holder.
1 . A ceiling fan comprising:
a motor assembly having a rotating blade hub with a first receiver having a pin-lock aperture;
at least one fan blade having a second receiver;
a blade holder having a first end received within the first receiver and a second end received within the second receiver; and
a push-lock assembly provided on the first end and having a spring-biased pin;
wherein when the first end is received within the first receiver, the spring-biased pin is biased into the pin-lock aperture to lock the first end within the first receiver.
2 . The ceiling fan of claim 1 wherein push-lock assembly comprises a body defining an interior and having a radial opening, with the spring-biased pin located within the interior and biased through the radial opening.
3 . The ceiling fan of claim 2 wherein the push-lock assembly comprises a removable cover plate closing the interior opposite the radial opening.
4 . The ceiling fan of claim 3 wherein the push-lock assembly comprises a coil spring located between the cover plate and the spring-biased pin.
5 . The ceiling fan of claim 4 wherein the spring-biased pin comprises a shoulder, pin, and pin extension, with the pin extending from the shoulder in a first direction, and the pin extension extending away from the shoulder in a second direction, opposite the first direction.
6 . The ceiling fan of claim 5 wherein the pin extension is inserted within the coil spring.
7 . The ceiling fan of claim 1 wherein the spring-biased pin comprises a shoulder, pin, and pin extension, with the pin extending from the shoulder in a first direction, and the pin extension extending away from the shoulder in a second direction, opposite the first direction.
8 . The ceiling fan of claim 7 wherein the push-lock assembly comprises a coil spring receiving the pin extension and having a first end biased against the shoulder.
9 . The ceiling fan of claim 8 wherein the push-lock assembly comprises a seat against which a second end of the coil spring, opposite the first end of the coil spring, is biased against the seat.
10 . The ceiling fan of claim 9 wherein the push-lock assembly comprises a washer seated within the seat and the second end of the coil spring is biased against the washer.
11 . The ceiling fan of claim 1 wherein the push-lock assembly comprises a seat and a pin, with a coil spring retained between the seat and the pin.
12 . The ceiling fan of claim 1 wherein the blade holder defines a longitudinal axis and comprises a twist along the longitudinal axis.
13 . The ceiling fan of claim 12 wherein the blade holder comprises a portion spaced from both the first end and the second end and the portion comprises the twist.
14 . The ceiling fan of claim 13 wherein the first end has a first cross-sectional shape and the second end has a second cross-sectional shape, which is different from the first cross-sectional shape.
15 . The ceiling fan of claim 14 wherein the second cross-sectional shape is ovate.
16 . The ceiling fan of claim 15 wherein the first cross-sectional shape is a circle.
17 . The ceiling fan of claim 1 wherein the first receiver comprises a compression fitting encompassing at least a portion of the first end of the blade holder.
18 . The ceiling fan of claim 1 wherein the first receiver comprises at least one saddle having a curved surface complementary to and abutting the blade holder when the first end is received within the first receiver.
19 . The ceiling fan of claim 1 wherein the motor assembly comprises an upper motor housing, a lower motor housing, and a magnet seat formed in a portion of the upper motor housing and lower motor housing.
20 . The ceiling fan of claim 19 comprising a plurality of permanent magnets located within the magnet seat.