【考案の名称】油圧作動機

Title:

【考案の名称】油圧作動機

Document Type and Number:

Japanese Patent JP2547230

Kind Code:

Y2

Abstract:

A hydraulic puncher comprises a cylindrical casing, a pump unit including a pump and fixedly held in the casing, a cylinder chamber defined by the cylindrical inner face and the inner end face of the pump unit, a piston reciprocatingly and slidably provided in the cylinder chamber and an oil reservoir which is formed adjacent to the pump unit in the casing and from which the pump sucks operating oil filled within the cylindrical casing.

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Inventors:

Masayuki Saito
Owada Masuzou

Application Number:

JP4370191U

Publication Date:

September 10, 1997

Filing Date:

May 15, 1991

Export Citation:

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Assignee:

Nitto Kohki Co., Ltd.

International Classes:

B21D28/24; B21D28/00; B23D29/00; B23D29/02; (IPC1-7): B23D29/00; B21D28/24

Domestic Patent References:

JP1301011A
JP2104498A
JP58224029A
JP319621U
JP6020321U

Attorney, Agent or Firm:

Tamamura Shizuyo

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