Electric fan capable to rotate for 360 degrees

• US 6,537,029 B1
• Filed: 10/08/2001
• Issued: 03/25/2003
• Est. Priority Date: 10/08/2001
• Status: Expired due to Fees

• Current Assignee: Huang Chen-Lung, Huang Chuang-Pan
• Original Assignee: Huang Chen-Lung, Huang Chuang-Pan
• Inventors: Chen-Lung, Huang, Chuang-Pan, Huang
• Primary Examiner(s): Look, Edward K.
• Assistant Examiner(s): White, Dwayne J.
• Application Number:
  US09/976,755
• Publication Number:
  US 20030068228A1
• Time in Patent Office: 533 Days
• Field of Search: 416/110, 416/100, 416/247.R, 416/170.R, 416/169.R
• US Class Current: 416/169.00R
• CPC Class Codes: F04D 25/105 by changing rotor axis direction, e.g. oscillating fans interconnecting rotary motion and oscillating motion F16H
• CPC Class Codes: F04D 29/601 specially adapted for elastic fluid pumps

Abstract

An electric fan capable to rotate for 360 degrees includes a control device consisting of a left and a right shell combined together. The shells have a L-shaped steel plate inside to fix a motor and a speed-reducing device. The speed-reducing device has its spindle fitted with the fixed shaft of a clutch having bead hole for receiving two steel beads and a spring. A shaft sleeve has bead grooves for receiving two aforesaid steel beads and firmly fitted in a copper sleeve by a bolt screwing through a bolthole and resting against a concave groove of the stand post. The shells further have a shaft groove for receiving the upper half portion of the stand post, thus, the upper half portion is actuated by the control device to rotate with an angle from 0 degree to 360 degrees.

Claims

1. An electric fan capable to rotate for 360 degrees comprising a fan blade, a safety net, and a fan blade motor for controlling said fan blade to rotate, said fan blade motor provided with a fixed base connected with a stand post, and a base resting on the ground and connected to a lower end of said stand post;

and,

characterized by said stand post divided into an upper half portion and a lower half portion, having a control device provided between said two half portions, said control device consisting of a left and a right shells combined together, a shaft groove provided on a rear upper portion of said two shells for receiving said upper half portion of said stand post, an L-shaped steel plate provided for fixing said left shell by means of a bolt and also fixed stably with the casing of a speed-reducing device, said speed-reducing device having its spindle inserted in a groove of a fixed shaft of a clutch and firmly secured therein by means of a bolt, said fixed shaft of said clutch having a horizontal bead hole for receiving two steel beads and a spring, said fixed shaft of said clutch further having a vertical female threaded hole at a lower side, a shaft sleeve having a groove on top side for receiving said fixed shaft of said clutch and a through hole at a lower side aligned with said female threaded hole of said fixed shaft and screwed by a bolt to firmly combine together said shaft sleeve and said fixed shaft of said clutch, said shaft sleeve provided with steel bead grooves protruding outward for receiving two said steel beads, further a copper sleeve provided to fit around an outer circumference of said shaft sleeve and having a threaded hole on one side, said copper sleeve combined with said lower half portion of said stand post by means of a bolt screwing through said threaded hole of said copper sleeve and then firmly resting against an annular concave groove of said lower half portion of said stand post, thus said motor starting to rotate together with said control device, said upper half portion of said stand post and said fan blade activated to rotate at the same time with an angle of wind blowing from 0 degree to 360 degrees.

2. The electric fan capable to rotate for 360 degrees comprising a fan blade, a safety net and a fan blade motor for controlling said fan blade to rotate, said fan blade motor provided with a fixed base connected with an upper end of a stand post having a lower end combined with a base:

and,

characterized by said control device provided on a top end of said stand post and connected with a shaft of said fixed base of said fan blade motor, said control device positioned between said stand post and said shaft of said fixed base, said control device consisting of a left and a right shells combined together, said two shells having a groove on a rear upper portion for said shaft of said fixed base to insert therein, an L-shaped steel plate provided to combine with said left shell by a bolt and also fixed with the casing of said speed-reducing device, said L-shaped steel plate securing said motor and said speed-reducing device in place, said speed-reducing device positioned under said motor and having its spindle inserted in a groove of a fixed shaft of a clutch and fixed together by a bolt, said fixed shaft of said clutch having a horizontal bead hole for two steel beads and a spring to fit therein, said fixed shaft of said clutch further having a vertical female threaded hole at a lower side, said shaft sleeve having a groove on top for receiving said fixed shaft of said clutch and a through hole at a lower side corresponding to said female threaded hole of said fixed shaft, a bolt screwing through these two said holes to firmly combine together said shaft sleeve and said fixed shaft of said clutch, said shaft sleeve provided with steel bead grooves protruding outward for receiving two said steel beads, further a copper sleeve fitted around an outer circumference of said shaft sleeve and having a threaded hole bored on one side, said copper sleeve combined with said lower half portion of said stand post and having an annular concave groove for a bolt screwing through said threaded hole of said copper sleeve and then resting stably against said concave groove of said lower half portion of said stand post, thus said motor starting to rotate together with said control device, said upper half portion of said stand post and said fan blade activated to rotate synchronously with an angle of wind blowing from 0 degree to 360 degrees.