(12) United States Patent ao) Patent No.: Us 7,243,931 B2
Chen (45) Date of Patent: Jul. 17,2007
(54) TURNING DEVICE FOR A WHEEL SET
(75) Inventor: Ting-Hsing Chen, Tainan Hsien (TW)
(73) Assignee: Far Great Plastics Industrial Co.,
Ltd., Tainan Hsien (TW)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 190 days.
(21) Appl. No.: 11/195,634
(22) Filed: Aug. 3, 2005
(65) Prior Publication Data
US 2007/0052191 Al Mar. 8, 2007
(51) Int. CI.
(52) U.S. CI 280/87.042; 280/89; 280/124.11;
(58) Field of Classification Search 280/87.042,
280/89, 124.111; 403/112, 113, 116, 117 See application file for complete search history.
(56) References Cited
U.S. PATENT DOCUMENTS
A turning device for a wheel set includes a handle strut and an axle pipe. The handle strut comprises a connecting tube at the bottom. The connecting tube comprises swirl tubes at respective ends. Each swirl tube has restricting members. The axle pipe comprises a receiving base corresponding to the connecting tube. The receiving base comprises lids at respective sides. The lids comprise restricting members corresponding to the restricting members of the swirl tubes. The lids and the receiving base comprise through holes for insertion of fasteners to secure the lids to the receiving base. By means of the restricting members, the receiving base and the swirl tubes may be turned with respect to each other to a limited angle. The restricting members are lugs and troughs.
4,955,626 A * 9/1990 Smith et al 280/87.042
5 Claims, 4 Drawing Sheets