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1. 发明专利

JP2844397B2 失效
公开(公告)号：JP2844397B2
公开(公告)日：1999-01-06
申请号：JP11687191
申请日：1991-04-19
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D15/02 , B25D17/06

2. 发明专利

JP2724849B2 失效
公开(公告)号：JP2724849B2
公开(公告)日：1998-03-09
申请号：JP25443788
申请日：1988-10-07
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI , MYAGAWA SHIGERU
IPC分类号： B25D15/02 , E02D7/06

3. 发明专利

JPH08144938A HIGH-PRESSURE PUMP 失效
公开(公告)号：JPH08144938A
公开(公告)日：1996-06-04
申请号：JP28304694
申请日：1994-11-17
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： F04B9/02
摘要： PURPOSE: To deliver a fluid at high pressure by providing a piston with a shock application mechanism for the application of a shock thereto during downward stroke according to the preset period, and arranging a working chamber between a fluid intake passage and a fluid delivery passage. CONSTITUTION: A rotary member 8 and a hammering body 15 are formed into a shock application mechanism. Also, a piston 18 is coupled to and held on a cylinder 16, so as to be capable of reciprocating motion. A working chamber 21 is formed in the cylinder 16 for water intake and delivery according to the reciprocating motion of a piston 18a, and kept communicated to an intake passage 22 and a delivery passage 25. Thus, water intake takes place periodically at every rotation of the member 8. Furthermore, the piston 18 is subjected to high pressure associated with a large impact from the body 15 at every rotation, and high pressure water is delivered from the passage 25 via a nozzle hole 24 on the end of a nozzle 23. According to this construction, a high-pressure pump 1 can be made compact. Also, the pump 1 allows an easy transport, washing or serration work, and ensures cost reduction or the like.

4. 发明专利

JPH04322978A CONTINUOUS IMPACT WORKING MACHINE 失效
公开(公告)号：JPH04322978A
公开(公告)日：1992-11-12
申请号：JP11687291
申请日：1991-04-19
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D17/24 , B25D9/10 , B25D15/02
摘要： PURPOSE:To prevent a vibration being produced at operation from being adversely affected to an engine or engine mounting part by making an operating pipe free of expansion as long as the specified length, and installing such a spring as energizing this pipe in the extending direction at all times. CONSTITUTION:This machine is interposed between an impact generating mechanism 2 and an engine 5. An operating pipe 4, inserting type in a transmission shaft 9, is made free of expansion as long as the specified length as being energized by a spring 45 in the expanding direction. In addition, an operating handle being held by an operator is installed at a base end side of this operating pipe 4, namely, in a member to be situated at the side of the engine 5. Accordingly, when impact operation is performed by way of pressing the whole working machine to the tip direction as holding this operating handle, the operating pipe 4 is shortened as compressing the spring 45, so this spring 45 is balanced in a state of being compressed as far as the specified value. With this constitution, even if the impact generating mechanism 2 produces a vibration in the axial direction of the operating pipe 4, suchlike vibration is absorbed by this spring 45, thus it is not directly transmitted to the engine 5.

5. 发明专利

JPH0255199B2 失效
公开(公告)号：JPH0255199B2
公开(公告)日：1990-11-26
申请号：JP9529583
申请日：1983-05-30
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D17/02

6. 发明专利

JPS5633284A IMPACT DEVICE 失效
公开(公告)号：JPS5633284A
公开(公告)日：1981-04-03
申请号：JP10540879
申请日：1979-08-17
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D11/12

7. 发明专利

JP2844398B2 失效
公开(公告)号：JP2844398B2
公开(公告)日：1999-01-06
申请号：JP11687291
申请日：1991-04-19
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D17/24 , B25D9/10 , B25D15/02

8. 发明专利

JP2832617B2 失效
公开(公告)号：JP2832617B2
公开(公告)日：1998-12-09
申请号：JP17066789
申请日：1989-06-30
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D9/26 , B25D17/10

9. 发明专利

JP2632183B2 失效
公开(公告)号：JP2632183B2
公开(公告)日：1997-07-23
申请号：JP10706688
申请日：1988-04-27
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D9/10 , B25D15/02

10. 发明专利

JPH0611472B2 失效
公开(公告)号：JPH0611472B2
公开(公告)日：1994-02-16
申请号：JP1159686
申请日：1986-01-21
申请人： YAMADA JUKI KK
发明人： YAMADA SAKUJI
IPC分类号： B25D17/10

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