Title:
A CLIMBING STAIRS DEVICE AND CLIMBING STAIRS METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2004/110846
Kind Code:
A1
Abstract:
A conveying device and operational procedure thereof are disclosed. The conveying device can go up and down stairs in a mode which combines vertical and horizontal movements. The device includes a structural chassis which is composed of a main frame (10), an auxiliary frame (20) and a bearing frame (30). The main frame and the auxiliary frame are both cuboids, but with different widths, which are nested each other and connected to move back and forth horizontally. The main frame and the auxiliary frame each has four legs that can be controlled to extend or drawback with equal length, and each is equipped with two horizontal tracks that are oriented back and forth. Four sets of wheels are contained in the bearing frame, which are located in the tracks and which can move along the tracks. A telescopic mechanism (6) is connected between the main frame and the auxiliary frame, and a moving mechanism (7) that moves the bearing frame is mounted in the structural chassis. The device further includes an electrical controlling system (50) of microcontroller and includes sensors, controlling switches, wheels, a power equipment, a driver circuit and batteries.
Inventors:
WANG DAJIAN (CN)
Application Number:
PCT/CN2004/000595
Publication Date:
December 23, 2004
Filing Date:
June 03, 2004
Export Citation:
Assignee:
WANG DAJIAN (CN)
International Classes:
B62B5/02; A61G5/06; (IPC1-7): B62B5/02
Foreign References:
| DE3422255A1 | 1985-12-19 | |||
| DE19518087A1 | 1996-11-28 | |||
| CN2254855Y | 1997-05-28 |
Attorney, Agent or Firm:
BEIJING ZHONGYUAN HUAHE INTELLECTUAL PROPERTY AGENT CO., LTD. (Huibin Building No.8 Beichendong Stree, Chaoyang District Beijing 1, CN)
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