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41. 发明专利

JPS60752B2 失效
公开(公告)号：JPS60752B2
公开(公告)日：1985-01-10
申请号：JP12459077
申请日：1977-10-19
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： H01R43/00 , H01R43/033 , H01R43/04

42. 发明专利

JPS582035B2 失效
公开(公告)号：JPS582035B2
公开(公告)日：1983-01-13
申请号：JP15456175
申请日：1975-12-23
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B25B21/00 , B25B23/00

43. 发明专利

JPS5511747A AIR DRIVER 失效
公开(公告)号：JPS5511747A
公开(公告)日：1980-01-26
申请号：JP8328878
申请日：1978-07-07
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B25B23/155 , B25B23/14

44. 发明专利

JPS53148799A CONTROLLER FOR PARTTFEED UNIT SUPPORTING THEREON POWER UNIT 失效
公开(公告)号：JPS53148799A
公开(公告)日：1978-12-25
申请号：JP6443577
申请日：1977-06-01
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B25B21/00 , B23B47/02 , B23P19/06 , B25B23/14 , B25B23/151 , H02P7/00 , H02P29/00

45. 发明专利

JPS51119455A IMPROVED SCREW 失效
公开(公告)号：JPS51119455A
公开(公告)日：1976-10-20
申请号：JP4457275
申请日：1975-04-12
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： F16B23/00 , F16B35/06
摘要： PURPOSE:An improved screw that enables to perform smooth screw fixing work without having effect of angle of pushing pressure against a driver.

46. 发明专利

JPS51102763A KYATSUPUTSUKIBORUTO MATAHA NATSUTO 失效
公开(公告)号：JPS51102763A
公开(公告)日：1976-09-10
申请号：JP2822575
申请日：1975-03-08
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： F16B35/00 , F16B37/14

47. 发明专利

JP2001193719A COMBINATION OF SCREW AND DRIVER BIT, AND HEADER PUNCH FOR MANUFACTURING THE SAME 失效
公开(公告)号：JP2001193719A
公开(公告)日：2001-07-17
申请号：JP2000000673
申请日：2000-01-06
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B21K1/46 , B21K1/48 , B25B15/00 , F16B23/00
摘要： PROBLEM TO BE SOLVED: To prevent a come out phenomenon of a driver bit, and a conventional screw breakage by improving the constitution of a groove in a cross groove of a screw and improve work efficiency by always realizing appropriate and quick screw fastening operation even when breakage is caused in a part of the cross groove. SOLUTION: In the screw, screw heads 30a is provided with a bit fitting groove 32 constituted by the cross groove, inclined grooves are formed each of which is inclined by a predetermined amount from an edge of the bit fitting groove toward the center of a screw neck, and an approximately conical bottom face is formed at the center in which the inclined groove parts cross to each other. In this screw, the edge of the bit fitting groove 32 is formed as an approximately vertical edge wall 32a having a predetermined depth, each of the grooves 32b is formed so as to have an inclined angle β of about 45 deg. from each of lower edges 32a' of each of the edge walls toward the conical bottom face in the center of the screw neck part 30b, and the conical bottom face 34 is formed so as to have an inclined angle α of about 28 deg..

48. 发明专利

JPH11333745A AUTOMATIC DRIVER PROVIDED WITH RECOVERING MEANS OF REMOVED SCREW 失效
公开(公告)号：JPH11333745A
公开(公告)日：1999-12-07
申请号：JP14196798
申请日：1998-05-22
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B23P19/06 , B25B23/02
摘要： PROBLEM TO BE SOLVED: To easily, surely and rapidly achieve the screw removing work and the work to recover the removed screw by arranging a bit attachment of a relatively simple constitution on a tip part of a bit to be rotated in a power driver or the like. SOLUTION: A bit guide hole 16 to guide and insert a bit is provided on a tip part of a bit 14 to be rotated in a power driver, a screw storage part 22 capable of storing a removed screw S is formed in an opening part of the tip of the bit guide hole, and a locking part 24 which is abutted on a part of a head part of the removed screw S to separate a tip blade part of the bit from a bit fitting groove formed on its head part is provided when the removed screw S is stored in a screw storage part 22. A bit attachment 18 in which a screw recovering passage 26 to recover the removed screw S separated from the bit is branched from the bit guide hole, is arranged.

49. 发明专利

JPH11311226A COMBINATION OF SCREW AND DRIVER BIT 失效
公开(公告)号：JPH11311226A
公开(公告)日：1999-11-09
申请号：JP11573998
申请日：1998-04-24
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B25B15/00 , F16B23/00
摘要： PROBLEM TO BE SOLVED: To provide a combination of a screw and a driver bit effectively preventing the come-out phenomenon of the driver bit, preventing the damage of the screw and always attaining appropriate and rapid thread-fastening work even in the case of a cross groove part of the screw being damaged, thereby improving work efficiency. SOLUTION: A screw head is provided with a bit fit-in groove 32 formed of a cross groove. The edge parts of this bit fit-in groove 32 are formed as nearly vertical end wall parts 32a of specified depth, and plane bottom parts 32b are formed pointing to the center part of the screw head from the lower edge parts of the vertical end wall parts 32a. Inclined groove parts 32c are further formed pointing to the center part of a screw neck part from the plane bottom parts 32b, and a nearly conical bottom face 34 is formed at the intersecting center part to constitute a screw 30. In this case, the bit fit-in groove 32 is formed as grooves 33a, 33b spreading out in groove width, pointing radially outward from the center part of the screw head.

50. 发明专利

JPH11173315A COMBINATION OF SCREW AND DRIVER BIT OR WRENCH 失效
公开(公告)号：JPH11173315A
公开(公告)日：1999-06-29
申请号：JP34032197
申请日：1997-12-10
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B25B13/54 , B25B15/00 , B25B23/10 , F16B23/00
摘要： PROBLEM TO BE SOLVED: To effectively prevent the occurrence of come out phenomenon of a driver bit through improvement of constitution of a polygonal hole of a screw head part, to prevent the occurrence of breakage of a screw like a conventional case, to achieve a constantly proper rapid screw fastening work, and to remarkably improve working efficiency. SOLUTION: A polygonal hole 32 consisting of approximately vertical wall surfaces 33 is formed down to a given depth in the central part of a screw head part 30a and a conical bottom surface pointing from the lower edge part of the vertical wall surface 33 toward the central part of a screw neck part is formed. In a so formed a screw 30 with a polygonal hole, a vertical stepped part 34 to form a polygonal inscribing circle is formed in the lower edge part 33a of the vertical wall surface 33 of the polygonal hole 32 formed in the screw neck part 30a. A conical bottom 35 pointing from the lower edge part 34a of the vertical stepped part 34 toward the central part of the screw neck part 30b is formed.

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