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Patent Searching and Data


Title:
VERTICAL CONVEYANCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/193821
Kind Code:
A1
Abstract:
Provided is a vertical conveyance device that can be easily handled. The vertical conveyance device (1) is provided with a frame (10), a crawler (20), a turning unit (30), and a hydraulic damper (60). A drive unit (11) for driving the crawler (20) is built into the frame (10). The turning unit (30) has a wheel (31) that can be moved between a projecting position and a retracted position. The damper (60) is disposed so as to be extendable and compressible between the frame (10) and the turning unit (30). When the vertical conveyance device (1) retracts the wheel by moving the wheel (31) from the projecting position to the retracted position in order to travel using the crawler (20), a piston (62) of the damper (60) moves within hydraulic fluid during said movement of the wheel from the projecting position to an intermediate position. When the wheel (31) is being moved from the intermediate position to the retracted position, the piston (62) moves above the hydraulic oil (F) surface (FS).

Inventors:
NANZAWA TAKESHI (JP)
OOTA AKIHISA (JP)
SEKINE SHINICHI (JP)
KATAHARA NOBUO (JP)
TOYOUCHI ATSUSHI (JP)
Application Number:
PCT/JP2018/014076
Publication Date:
October 25, 2018
Filing Date:
April 02, 2018
Export Citation:
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Assignee:
KYB CORP (JP)
International Classes:
B62D55/075; B62B5/02; B62D57/024
Foreign References:
JPS6120484U1986-02-06
JP5S222752Y2
JP2005096487A2005-04-14
JP2015006330A2015-01-15
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (4-1 Sakae 2-chome, Naka-ku, Nagoya-sh, Aichi 08, JP)
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