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1. 发明专利

JPS62258276A STOP VALVE 失效
公开(公告)号：JPS62258276A
公开(公告)日：1987-11-10
申请号：JP10329186
申请日：1986-05-06
申请人： NERIKI KK , OMI TADAHIRO , MOTOYAMA ENG WORKS
发明人： OMI TADAHIRO , SUGANO YOICHI , YONEZAWA KEITARO , DAICHO NORIO , NITTA JIRO , MIYAZAKI KOJI , MIYOSHI HAJIME
IPC分类号： F16K35/00
摘要： PURPOSE:To protect a handle from being brought into contact with other matter by inserting the handle removably in the axial direction into the input section of a drive screw member while providing a restricting means of an anti-removal chip for the handle together with an intermediate transmission tool. CONSTITUTION:A handle 7 of a stop valve 5 is fastened through rotation so as to screw a drive screw member 25 against a valve box 9. The handle 7 is inserted rollably and removably in the axial direction into an input section 25a of the drive screw member 25 while a spring S and an intermediate transmission tool 26 are arranged in a valve close thrust transmission system T. A restricting means 35 of an anti-removal chip 29 for the handle 7 is provided across the drive screw member 25 and the intermediate transmission tool 26. Since the handle can be removed under closed condition of the stop valve, it is protected from being brought into contact with other matter.

2. 发明专利

JPS62258269A STOP VALVE 失效
公开(公告)号：JPS62258269A
公开(公告)日：1987-11-10
申请号：JP10329086
申请日：1986-05-06
申请人： NERIKI KK , OMI TADAHIRO , MOTOYAMA ENG WORKS
发明人： OMI TADAHIRO , SUGANO YOICHI , YONEZAWA KEITARO , DAICHO NORIO , NITTA JIRO , MIYAZAKI KOJI , MIYOSHI HAJIME
IPC分类号： F16K1/02 , F16K41/12
摘要： PURPOSE:To prevent over fastening of handle by feeling the encounter of a valve face with a proper closing contact force in the way of open valve operation. CONSTITUTION:A handle 4 of a stop valve 1 is rotary fastened to drive a screw member 3 so as to close contact a valve face 14 against a valve seat 7a. Here, a spring S for close contacting the valve face 14 against the valve seat 7a with a proper force is arranged in a valve thrust transmission system T between the drive screw member 3 and a valve body 12. With such arrangement, over fastening of handle, loosening of drive screw member due to vibration and leakage of fluid due to the deformation of valve seat or valve face during valve close operation can be prevented.

3. 发明专利

JPH03157577A NORMALLY-CLOSED TYPE BOMB VALVE AS WELL AS BOMB VALVE OPENING ACTUATOR THEREOF AND MANUAL FORCED VALVE OPENER 失效
公开(公告)号：JPH03157577A
公开(公告)日：1991-07-05
申请号：JP29566489
申请日：1989-11-13
申请人： NERIKI KK
发明人： KAWAHARA MASAKATSU , DAICHO NORIO , NITTA JIRO
IPC分类号： F17C13/04 , F16K31/122 , F16K31/163
摘要： PURPOSE:To reduce the cost of a valve system for a normally-closed type bomb valve as a whole by setting up one valve opening actuator to plural units of gas bomb's valves. CONSTITUTION:During conveyance or storage of a gas bomb 1, a valve opening actuator 40 is removed from an actuator supporting part 36 of a bomb valve 2, and a valve member 13 is pressed to a valve seat 12 for closing by dint of resilient force of a valve closing spring 29. When gas in this gas bomb 1 is taken out, first of all, a supported part 54 of the valve opening actuator 40 is attached to the actuator supporting part 36 of the bomb valve 2, then this actuator 40 is operated for opening, and the valve member 13 is separated from the valve seat 12 against the resilient force of the valve closing spring 29. If so, gas in the bomb 1 is taken out to a gas outlet 7 from a gas inlet 6 by way of a valve chest 9.

4. 发明专利

JPH02266169A STOP VALVE 失效
公开(公告)号：JPH02266169A
公开(公告)日：1990-10-30
申请号：JP8764789
申请日：1989-04-05
申请人： NERIKI KK
发明人： DAICHO NORIO , KAWAHARA MASAKATSU , NITTA JIRO , MIYAZAKI KOJI
IPC分类号： F16K1/02
摘要： PURPOSE:To prevent a fluid from leaking with certaintity by installing a contact stopping part, checking any movement of a propulsive screw member to the valve closing side of more than the specified value, at the fixed side of a valve box, and setting a contact stopping position of this contact stopper part in a mid position of a compressive operating range of a belleville spring. CONSTITUTION:A handle 7 is rotated to the valve closing side from a valve closing state, and a valve face 14a is made contact with a valve seat 10a. In this state, a size of height between a rotation absorbing transmission device 31 and a contact stopper part 34 is D-E. In addition, contact force between the valve seat 10a and the valve face 14a is enhanced as a propulsive screw member 25 goes forward to the lower side by operation of the handle 7, and in the midway, the member 25 makes the transmission device 31 go down, whereas an intermediate transmission device 26 is stopped to the valve seat 10a via a valve body 14, so that a belleville spring S is compressed while closing contact force of the valve face 14a is gradually enhanced. A descent of the transmission device 31 is stopped by the stopper part 34 in the midway of compressive operation of the spring S, and the closing contact force of the valve face 14a is prevented from exceeding a proper value P.

5. 发明专利

JPH02113188A STOP VALVE 失效
公开(公告)号：JPH02113188A
公开(公告)日：1990-04-25
申请号：JP26681488
申请日：1988-10-21
申请人： NERIKI KK
发明人： DAICHO NORIO , KAWAHARA MASAKATSU , NITTA JIRO , MIYAZAKI KOJI , YONEZAWA KEITARO
IPC分类号： F16K1/30 , F16K31/50 , F16K31/60 , F16K35/00 , F17C13/04
摘要： PURPOSE:To eliminate plastic deformation of a disc spring and to prevent leakage in the valve closing condition by providing a contact transmission portion between a propeller screw member and an intermediate transmission means, and setting the transmission contact position in the midway position of the compressive operation area of the disc spring. CONSTITUTION:Disc springs S are stacked in a spring chamber 32 formed between a rotation absorbing transmission means 41 and the intermediate transmission means 26. Contact transmission means 40 is disposed in such a manner as to be parallel transmission to the disc spring S between the intermediate transmission means 26 and rotation absorbing transmission means 41. The contact transmission portion 40 comprises a stepped portion 27 of the intermediate transmission means 26 and a spring bearing surface 41a of the rotation absorbing transmission means 41, and the transmission portion 40 is set in the midway position of the compressive operation area of the disc spring S. Accordingly, when the valve is operated to close, the disc spring S is stopped being further compressed in the midway of the compressive operation area to prevent totally compression condition, so that even if the accumulated frequency of valve closing operation becomes larger, the elastic condition can be kept.

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