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Patent Searching and Data


Title:
TWO-SPEED POWER SPRING TYPE DRIVING UNIT
Document Type and Number:
Japanese Patent JP2005133765
Kind Code:
A
Abstract:

To shorten a time lag when connecting a gear mechanism in a running mode immediately after starting to a constant speed mechanism, to stabilize slow start, to realize engagement of the constant speed mechanism hard to be removed, and to make a clear switching between slow running and quick running for a long time use.

In this two-speed power spring type driving unit, a counter-side gear 10 for giving rotation to constant speed running switching gears 16 and 17 of the gear mechanism 2 is arranged between a driving shaft 4 and an output shaft 5, and the constant speed running switching gears 16 and 17 rotate around the counter-side gear 10 for giving rotation. When rotating for running, the constant speed running switching gears 16 and 17 are supported freely to move in a direction for engaging with the constant speed mechanism 3 by the rotating force to be generated by the rotation of the counter-side gear 10 and gravity, and the constant speed running switching gears 16 and 17 are moved inside a long hole 23 by a switching member 6 straightly moving simultaneously with a start of the running rotation, resisting the gravity and the rotating force, to be separated from the constant speed mechanism 3.


Inventors:
MORIKAWA RYOTA
Application Number:
JP2003367684A
Publication Date:
May 26, 2005
Filing Date:
October 28, 2003
Export Citation:
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Assignee:
SEIKOKEN CO LTD
International Classes:
A63H17/26; A63H29/02; F03G1/00; F16H29/12; F16H37/06; A63H3/50; (IPC1-7): F16H29/12; A63H3/50; A63H17/26; A63H29/02; F16H37/06
Attorney, Agent or Firm:
Kazumi Murase