NZ732276B2

NZ732276B2 - A ceiling fan assembly

Info

Publication number: NZ732276B2
Application number: NZ732276A
Authority: NZ
Inventors: Yu William
Original assignee: Deka Australia Pty Ltd
Filing date: 2017-05-26
Publication date: 2024-12-03

Abstract

time - consuming installation method is each blade requiring fastening one by one with rotation and alignment of the fastener access cutout for each blade installation. The access provided by the fastener access cutout is limited making installation tricky especially when the rotor rotates slightly during installation. The installation is typically performed with the assembly upside down, the fasteners often times fall within the housing and become difficult to locate and dislodge. A ceiling fan assembly comprising a motor assembly hung from a downrod. The motor assembly defining a peripheral flange comprising a plurality of radial flange affixation apertures for the receipt of fan blade fastening fasteners therethrough for the securement of fan blades. The affixation apertures each having a longitudinal axis perpendicular with a rotational axis of the motor assembly. The housing surrounding the motor assembly, wherein the housing comprises an annular and static upper housing portion correspondingly adjacent the radial flange and wherein the upper housing is detachable away from the peripheral flange in use. This allows for upper access to the affixation apertures. The upper housing defines at least one mechanical interlock portion so that the upper housing portion is rotatably detachable.

Claims

1. A ceiling fan assembly comprising: a motor assembly hung from a downrod, the motor assembly comprising: a plurality of affixation apertures for securement of fan blades to the motor assembly; and housing comprising an annular upper housing portion which is removeable to allow upper access to the affixation apertures when securing the fan blades to the motor assembly, wherein the upper housing portion defines at least one mechanical interlock portion so that the upper housing portion is rotatably detachable.

2. A ceiling fan assembly as claimed in claim 1, wherein the motor assembly has a peripheral flange having the affixation apertures.

3. A ceiling fan assembly as claimed in claim 1, wherein the affixation apertures each have a longitudinal axis parallel with a rotational axis of the motor assembly.

4. A ceiling fan assembly as claimed in claim 1, wherein the upper housing portion encircles the downrod when removed.

5. A ceiling fan assembly as claimed in claim 1, wherein the housing comprises a middle housing portion affixed to the motor assembly so as to rotate with the motor housing.

6. A ceiling fan assembly as claimed in claim 5, wherein the middle housing portion comprises a plurality of elongate fan blade slots through which proximal ends of the fan blades can be inserted.

7. A ceiling fan assembly as claimed in claim 6, wherein the proximal ends of the fan blades each comprise fan blade affixation apertures corresponding to the affixation apertures.

8. A ceiling fan assembly as claimed in claim 1, wherein the housing comprises switchbox housing and wherein the upper housing portion and the switchbox housing mechanically interlock in a selectively detachable manner when the upper housing portion is rotated with respect to the switchbox housing.

9. A ceiling fan assembly as claimed in claim 8, wherein the switchbox housing defines at least one corresponding mechanical interlock portion and wherein the mechanical interlock portion of the switchbox housing comprises a recess comprising a tangential tab extending across the recess and wherein the mechanical interlock portion of the upper housing portion comprises an upwardly facing tangentially orientated ramp such that, for interlocking, the mechanical interlock portion of the upper housing portion may be inserted through the recess and subsequently rotated such that the tangential tab goes over the ramp for engagement.

10. A ceiling fan assembly as claimed in claim 9, wherein the tangential tab comprises an engagement thereunderneath and wherein the ramp leads to a seat such that the tangential tab rides up the ramp until the engagement locates within the seat.

11. A ceiling fan assembly as claimed in claim 9, wherein the upper housing portion is plastic.

12. A ceiling fan assembly as claimed in claim 1, wherein the housing comprises switchbox housing defining an outer radial flange and the upper housing portion defines an inner flange which sits atop the outer radial flange.

13. A ceiling fan assembly as claimed in claim 12, wherein the inner and outer radial flanges comprise corresponding affixation apertures for the receipt of fasteners therethrough.

14. A ceiling fan assembly as claimed in claim 13, wherein the affixation apertures comprise upper housing portion affixation apertures comprising a rotatably detachable affixation aperture comprising major and minor apertures.

15. A ceiling fan assembly as claimed in claim 12, wherein the upper housing portion is metallic.

16. A ceiling fan assembly as claimed in claim 1, wherein the upper housing portion comprises a plurality of air vents.

17. A ceiling fan assembly as claimed in claim 1, wherein the assembly further comprises an upper canopy at a top end of the downrod, the upper canopy having an outer diameter and wherein the upper housing portion comprises an inner diameter greater than the outer diameter.