Title:
ELASTIC CRAWLER AND CRAWLER-TYPE TRAVEL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/051808
Kind Code:
A1
Abstract:
Provided are an elastic crawler and a crawler-type travel device in which wheel detachment and edge cut are unlikely to occur even when performing operations inside a large cylindrical structure or on a ground surface that is highly curved. An elastic crawler 1 has a crawler body 2 comprising an endless elastic body depressed by roller wheels having left and right tread surfaces, a plurality of lugs 4 being disposed on the ground contact surface 7 of the crawler body 2. On one side portion in relation to the center position in the crawler width direction on the ground-contact surface side of the crawler body 2, outward of a tread surface 11c which is the inner side of the roller wheels in the crawler width direction, toward the vicinity of one side end edge in the crawler width direction from a position within a range inward of a tread surface 11a which is the outer side, a distance dp in the height direction of the tread surface 11a which is the outer side is gradually reduced, whereby an inclined surface 7a is formed such that the crawler thickness is gradually reduced, and due to this configuration, the inclined surface does not contact the ground when traveling on a flat surface.
Inventors:
NORITO TATSUYA (JP)
FUJIWARA NAO (JP)
FUJIWARA NAO (JP)
Application Number:
PCT/JP2017/031529
Publication Date:
March 22, 2018
Filing Date:
September 01, 2017
Export Citation:
Assignee:
FUKUYAMA RUBBER IND CO LTD (JP)
International Classes:
B62D55/253
Foreign References:
| JP2003252259A | 2003-09-10 | |||
| JP2000302069A | 2000-10-31 | |||
| JP2003040155A | 2003-02-13 | |||
| JPS504097Y1 | 1975-02-02 | |||
| US20110209930A1 | 2011-09-01 |
Other References:
See also references of EP 3489117A4
Attorney, Agent or Firm:
KASEGUMA Tsuguhisa (JP)
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