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21. 发明专利

AU2106192A QUICK RETURN MECHANISM FOR A DRILLING MACHINE 未知
公开(公告)号：AU2106192A
公开(公告)日：1993-03-25
申请号：AU2106192
申请日：1992-08-14
申请人： NITTO KOHKI CO LTD
发明人： OSAMU ASANO , MICHIHIRO SHOJI
IPC分类号： B23B45/14 , B23B47/18 , B23Q5/34
摘要： A quick return mechanism for a drilling machine comprises an input shaft (9), an output shaft (10), an over-drive gear train (19) and a speed-reduction gear train (23), each disposed between the input and output shafts (9, 10), a first clutch (18) for connecting the output shaft (10) to the input shaft (9) through the over-drive gear train (19) when a motor (13) for driving the input shaft (9) rotates in the quick-return direction and disconnecting the output shaft (10) from the input shaft (9) when the motor (13) rotates in the feed direction, a second clutch (22) selectively set at a first position and a second position, for connecting the output shaft (10) to the input shaft (9) through the speed-reduction gear train (23) at the first position when the motor (13) is rotated in the feed direction, and disconnecting the output shaft (10) from the input shaft (9) through the speed-reduction gear train (23) at said second position, when the motor (13) rotates in the quick-return direction, and a rotation=linear-movement converting unit (32) for setting the second clutch (22) at the first position when the motor (13) rotates in the feed direction, and at the second position when the motor (13) rotates in the quick-return direction.

22. 发明专利

DE4007388C2 未知
公开(公告)号：DE4007388C2
公开(公告)日：1991-05-29
申请号：DE4007388
申请日：1990-03-08
申请人： NITTO KOHKI CO., LTD., TOKIO/TOKYO, JP
发明人： KOBAYASHI, YOSHIKAZU, TOKIO/TOKYO, JP
IPC分类号： G01L19/08 , G01L7/16 , G01L19/12
摘要： A pressure checker for a fluid pressure source, including a main unit which includes/comprises a hollow portion which can communicate with a fluid pressure source, a cap with a window fitted on the main unit, a spool contained in the hollow portion of the main unit to be reciprocal, said spool being provided with a front end portion with a defined pressure indication surface, a compression coil spring for biasing the spool against the pressure of the fluid pressure source, and a flat light-shielding member positioned in the window of the cap, said flat light-shielding member being provided with a bag made of a material which allows at least partial transmission of light, and a light-absorbing liquid sealed in the bag, wherein the flat light-shielding member transmits light through the window toward the defined pressure indication surface when the spool is moved by the pressure of the fluid pressure source against the biasing force of the compression coil spring, and can also transmit light reflected by the defined pressure indication surface to the outside.

23. 发明专利

DE3726560C2 未知
公开(公告)号：DE3726560C2
公开(公告)日：1991-05-29
申请号：DE3726560
申请日：1987-08-10
申请人： NITTO KOHKI CO., LTD., TOKIO/TOKYO, JP
发明人： TAKEUCHI, HIROSATO , MIYAZAKI, OSAHIKO , KAZAMA, YASUO , KURIHARA, NAOYA, TOKIO/TOKYO, JP
IPC分类号： G01L5/00 , F16B31/02 , G01L5/24 , H01R20060101
摘要： The rivet, screw, or bolt comprises a rod-shaped body (10) having a head (14) and/or thread (12) on the outer periphery. A longitudinal hole (18) is open at one end. A rod (20) is disposed in the hole and fixed at its inner end (22) to the inner end (24) of the hole. A light transmissive window (34) is fixed in the opening (30) of the hole. A flexible, light transmissive, fluid holder (38) holds a coloured fluid (40) and pressed by the free end of the rod against the window. When a longitudinal strain is developed in the body the rod releases the holder sufficiently for the coloured fluid to obscure the coloured indicator (36) on the free end of the rod. The position of the rod in the hole is adjustable to set the limit value of the stress to which the fastener should be subjected.

24. 发明专利

DE3819021C2 未知
公开(公告)号：DE3819021C2
公开(公告)日：1990-07-26
申请号：DE3819021
申请日：1988-06-03
申请人： NITTO KOHKI CO., LTD., TOKIO/TOKYO, JP
发明人： KIKUCHI, KATSUJI, TOKIO/TOKYO, JP
IPC分类号： F04B17/04 , F04B35/04
摘要： A biasing force adjusting apparatus is used for an electromagnetically driven reciprocating pump in which the piston is reciprocated to achieve pumping by a magnetic force cyclically generated from an electromagnet and a biasing force of a compression coil spring. The apparatus includes a pressing mechanism having a piston-cylinder unit to which a compressor is connected. The unit is detachably connected to a spring support to press the support at a predetermined pressure, and then a fixing screw is tightened to fix the support on a housing of the pump.

25. 发明专利

AU5374679A VALUED QUICK ACTING PIPE JOINT 未知
公开(公告)号：AU5374679A
公开(公告)日：1980-11-06
申请号：AU5374679
申请日：1979-12-12
申请人： NITTO KOHKI CO LTD
发明人： MAKISHIMA R
IPC分类号： F16L29/00 , F16L37/00 , F16L37/08 , F16L37/084 , F16L37/28 , F16L37/42 , F16L37/44

26. 发明专利

AU2019230285A1 Handle device and punching machine 未知
公开(公告)号：AU2019230285A1
公开(公告)日：2020-09-17
申请号：AU2019230285
申请日：2019-02-20
申请人： NITTO KOHKI CO LTD
发明人： YOKOYAMA TOSHIKI
IPC分类号： G05G1/04 , B23B45/00 , B25F5/02
摘要： [Problem] To provide a handle device in which the point of contact between a handle member and a rotating shaft member is unlikely to be deformed. [Solution] A handle device 20 is provided with a holding member 26, a handle member 22, and a rotating shaft member 24. The handle member 22 has a shaft section 50 having formed thereon first and second connection engagement sections 54a, 54b and first and second connection release sections 56a, 56b. The rotating shaft member 24 has a connection recess section 72 formed in the connection end surface 68 thereof which faces the shaft section 50, and the connection recess section 72 extends radially from a rotation axis R. The handle member 22 is configured so that, at a connected position, the first and second connection engagement sections 54a, 54b are engaged with the connection recess section 72 at positions on both sides, in the direction of a longitudinal axis M, of the rotation axis R, and are connected, in a rotational direction, to the rotating shaft member 24. When the handle member 22 is displaced in the direction of the longitudinal axis M to be set at a connection release position, the connection between the connection recess section 72 and the first and second connection engagement sections 54a, 54b is released, and the handle member 22 becomes rotatable relative to the rotating shaft member 24.

27. 发明专利

AU4478199A Control device for hydraulically driven tool 未知
公开(公告)号：AU4478199A
公开(公告)日：1999-11-11
申请号：AU4478199
申请日：1999-08-27
申请人： NITTO KOHKI CO LTD
发明人： SHIMADA KEISUKE , SHOJI MICHIHIRO
IPC分类号： B21D28/20 , B21D28/26 , B30B1/32 , B30B15/18 , F15B13/044 , F15B13/16 , F15B15/28

28. 发明专利

AU2121299A Control device for hydraulically driven tool 未知
公开(公告)号：AU2121299A
公开(公告)日：1999-05-13
申请号：AU2121299
申请日：1999-03-16
申请人： NITTO KOHKI CO LTD
发明人： SHIMADA KEISUKE , SHOJI MICHIHIRO
IPC分类号： B21D28/20 , B21D28/26 , B30B1/32 , B30B15/18 , F15B21/02 , F15B21/08

29. 发明专利

AU2042797A Control device for hydraulically driven tool 未知
公开(公告)号：AU2042797A
公开(公告)日：1998-01-05
申请号：AU2042797
申请日：1997-03-18
申请人： NITTO KOHKI CO LTD
发明人： SHIMADA KEISUKE , SHOJI MICHIHIRO
IPC分类号： B21D28/24 , B30B1/32 , B30B15/16 , B30B15/18 , F15B21/08 , B21D28/20
摘要： When a start switch (SW3) is depressed, a one-shot multivibrator circuit (15) is actuated to output one pulse. When the pulse enters a self-holding circuit (16), the self-holding circuit (16) is self-held to output an H-level signal until reset. As a result, a transistor (17) is turned on to actuate a relay (R1) for lowering a ram. When the ram reaches the lower limit position, a lower limit switch (LS4) is opened, so that a signal from a one-shot multivibrator circuit (18) causes a self holding circuit (21) to self-hold an H-level signal. The signal is delayed by a delay circuit (22) to turn a transistor (23) on. Therefore, a relay (R2) for raising the ram is actuated. Restarting will not be effected due to the operation of the one-shot multivibrator circuit (15) even when the start switch is kept depressed. Also, the service life of a valve changeover mechanism can be extended owing to the operation of the delay circuit (22). Further, erroneous operations can be prevented by operations of a delay circuit (19) and an AND circuit (24) even when the lower limit switch (LS4) chatters.

30. 发明专利

DE4035581C2 未知
公开(公告)号：DE4035581C2
公开(公告)日：1993-07-22
申请号：DE4035581
申请日：1990-11-08
申请人： NITTO KOHKI CO., LTD., TOKIO/TOKYO, JP
发明人： KOTAKE, NAOYUKI, TOKIO/TOKYO, JP
IPC分类号： F16L37/22 , F16B21/16 , F16L37/084 , F16L37/30
摘要： A coupling socket includes a main cylindrical body and a locking member. The main cylindrical body has a hole extending along its longitudinal axis and a rectangular hole formed on its plug-inserted portion and directed perpendicular to its hole. The locking member includes locking parts provided with ring-shaped pieces engageable with a locking groove on a plug. A plug hole is formed between the locking parts when one of the ring-shaped pieces is placed on the other. The plug hole is made wide when the locking parts approach each other and narrow when they separate from each other. The locking member is fitted into the rectangular hole of the main cylindrical body in such a way that the plug hole is aligned with the hole and that the locking parts is controlled from outside of the main cylindrical body to come close to and separated from each other. Springs are interposed between the main cylindrical body and the locking member to urge the locking parts to apart from each other.

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