Title:
SPRING UNIT
Document Type and Number:
Japanese Patent JP3195580
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sprint unit which enables to make the unit small-sized even though it is used a constant spring and act the constant spring with maximum efficacy.
SOLUTION: A constant spring 10 wound around a main drum 22 is wound up around a winding drum 21 which is set parallel with the shaft of the main drum 22 and the unwind force of the constant spring 10, which is wound around the winding drum 21, makes the driving shaft 11 rotate. Further, a limiting device C that controls the winding volume of constant spring 10 is set on the winding drum 21.
Inventors:
Junichi Nagaoka
Kazuo Ohba
Kazuo Ohba
Application Number:
JP13616298A
Publication Date:
August 06, 2001
Filing Date:
April 30, 1998
Export Citation:
Assignee:
TAKARA Co.,Ltd.
International Classes:
A63H29/00; A63H29/02; A63H29/04; A63H31/00; (IPC1-7): A63H29/02; A63H29/00; A63H29/04; A63H31/00
Domestic Patent References:
| JP631595U |
Other References:
【文献】特許2734351(JP,B2)
Attorney, Agent or Firm:
Mikio Segawa