Title:
ENGINE WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2015/129357
Kind Code:
A1
Abstract:
To obtain a lightweight engine work machine that can easily be started up. A rotating shaft (201) can be made to rotate forward by a worker repeatedly pulling on a rope (202) while the rotating shaft (201) is engaged with an engaging part (104A). A force-accumulating shaft (104) is thereby driven, and force can be accumulated in a flat spiral spring (103) in a force-accumulating drive unit (100). A crankshaft (43) can thereafter be driven after sufficient force has been accumulated in the flat spiral spring (103). Because force is accumulated in the flat spiral spring (103) at this time, the torque whereby the crankshaft (43) is driven at this time can be sufficiently increased above the torque with which the worker rotates a reel (203) by means of the rope (202).
Inventors:
MURAKAMI TAKUHIRO (JP)
Application Number:
PCT/JP2015/051862
Publication Date:
September 03, 2015
Filing Date:
January 23, 2015
Export Citation:
Assignee:
HITACHI KOKI KK (JP)
International Classes:
F02N5/02; F02N3/02; F02N11/12; A01D34/68
Foreign References:
| JPS63138023U | 1988-09-12 | |||
| US1936555A | 1933-11-21 | |||
| JPS3520305Y1 | ||||
| JPH0184528U | 1989-06-05 | |||
| JP2011043081A | 2011-03-03 |
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