Title: Fluid operated brakes and reversing clutches for winch drums

Abstract: An operating device for a double drum winch that has a hydraulically operated clutch, a brake and a hydraulic pressure variable control valve, and a single control lever connected to the hydraulic pressure variable control vavle to enable the operation of a hook and boom by one control lever so as to simplify the function and uses of the winch.

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Inventors: Nishida, Kazumori (Hirakata, JA)
Kawahashi, Toshinori (Hirakata, JA)
Tanaka, Yoshimasa (Kyoto, JA)

Application Number: 448239
Filing Date: 1974-03-05
Publication_date: 1976-02-24
Assignee: Kabushiki Kaisha Komatsu Seisakasho (JA)
Primary Class(es): 192/225 74/360, 74/471XY, 192/12C, 192/87.18, 251/296, 254/303
Other Classes:
US Patent Ref:

2947397	Aug, 1960	Pietsch	192/17.
2966752	Jan, 1961	Wampach	192/17.
3128861	Apr, 1964	Trondseu	192/17.
3529705	Sep, 1970	Cudnohufsky	192/4.
3651905	Mar, 1972	Brown	192/4.

Other Refs:
Primary Examiner: Wyche, Benjamin W.
Assistant Examiner:
Attorney: Armstrong, Nikaido & Wegner