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1. 发明专利

JPH0482678A MOTOR DRIVEN SCREW DRIVER 失效
公开(公告)号：JPH0482678A
公开(公告)日：1992-03-16
申请号：JP19858390
申请日：1990-07-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： OHASHI TOSHIHARU , HONGO SHOICHI , YOSHIHARA TAKEMI
IPC分类号： B25B21/00
摘要： PURPOSE:To automatically conform the directions of the grooves of each screw head after completion of thread fastening, by providing a control means which stops the rotation of a motor by a braking means when it is rotated by a preset rotation quantity after a detecting means has detected the specified position. CONSTITUTION:The rotating shaft driven by a motor 1 or motor 1 being rotated up to the specified position is detected by a counter 5 and the rotation of the motor 1 is stopped by the OFF of switching elements Q1, Q3, Q5 when it is rotated by a preset rotation quantity after this specified position being detected. Namely, a river bit inserted into the chuck which is connected to the rotating shaft is stopped at a constant position at all times.

2. 发明专利

JPH03221381A TORQUE ADJUSTING DEVICE FOR ROTATING TOOL 失效
公开(公告)号：JPH03221381A
公开(公告)日：1991-09-30
申请号：JP1717690
申请日：1990-01-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HONGO SHOICHI , OHASHI TOSHIHARU , YOSHIHARA TAKEMI
IPC分类号： B25B23/147 , B25B23/14 , B25B23/145 , B25B23/151
摘要： PURPOSE:To obtain the high operating torque precision of a clutch with little effect from the rotary inertia by providing a switching means which is constituted of a torque detecting means and a shift means and switches the output to the low-speed side with the torque lower than the operating torque of the clutch. CONSTITUTION:The rotating speed of a motor 2 is set to a high speed to start the work, when the load torque is increased to exceed the speed adjusting capability range of the motor 2 and the rotating speed of the motor 2 is lowered to the preset rotating speed, the output of the second comparator 94b is made a high level, and a transistor Q1 is turned on. The input of the first comparator 94a is clamped to the voltage of a Zener diode Dz. The output of the motor 2 is reduced, and its rotating speed is lowered. When the load torque is further increased to reach the set torque of a clutch 4 and the clutch 4 is operated, the rotating speed is made a low speed, and the effect on the operating torque precision of the clutch 4 is reduced.

3. 发明专利

JPS6458481A POWER TOOL 失效
公开(公告)号：JPS6458481A
公开(公告)日：1989-03-06
申请号：JP21176087
申请日：1987-08-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HONGO SHOICHI , KISHI ICHIRO , OKADA KIICHI
IPC分类号： B25B21/02 , B25B23/14 , B25B23/145 , B25B23/147 , B25F5/00
摘要： PURPOSE: To perform fastening work under the convenient condition for use by providing a first variable resistor adapted to change the resistance value according to the control input of a trigger lever for a power source switch, and a second variable resistor adapted to change the resistance value by a separate operating means from the lever. CONSTITUTION: A first variable resistor VR1 is operated by a trigger lever 8 similarly to a power supply switch SW1 to change the resistance value αR1 according to the control input of the trigger lever 8, thereby varying the rotating speed of a motor M. At this time, by operation of a dial 9 provided on the side of the rear end part of a casing 6, the resistance value βR2 of a second variable resistance VR2 is controlled according to an object for work to obtain the change pattern of the rotating speed suitable for the object for work. For example, at the time of fastening a small screw, it is set to about β=0.2, and when large fastening force for a bolt or the like is needed, it is set to β=1 to obtain suitable work efficiency. In this case, R1 and R2 are total resistance values of the respective variable resistors VR1 , VR2 .

4. 发明专利

JPH06206204A CUTTING TOOL 失效
公开(公告)号：JPH06206204A
公开(公告)日：1994-07-26
申请号：JP1399393
申请日：1993-01-29
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： OKAMURA HIDESUMI , MIZOGUCHI SOICHIRO , RYU KUNIHIKO , HONGO SHOICHI
IPC分类号： B26B7/00 , B23D61/12 , B27B19/09 , B27B23/00
摘要： PURPOSE:To sharply cut an object to a specified position without leaving any remainder. CONSTITUTION:A rocking arm 1 to be driven in rocking motion is installed to a cutting blade 2. The cutting blade 2 is rocked back and forth by the rocking arm 1 and at the same time, the cutting blade 2 is moved reciprocatingly in its longer direction to cut an object 4 to be cut. When the cutting blade 2 is positioned at the front edge of its scope of rocking, the cutting blade 2 is installed to the rocking arm 1 in such a way as the longer direction of the cutting blade 2 meets at the right angles with the base 5 which is set alongside with the object 4 to be cut.

5. 发明专利

JPH04251704A BORING TOOL 失效
公开(公告)号：JPH04251704A
公开(公告)日：1992-09-08
申请号：JP808091
申请日：1991-01-28
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： RYU KUNIHIKO , HONGO SHOICHI , OKAMURA HIDEZUMI , TORIGOE MASAO , NAGASAKI HARUKI , HATTA HIDEO
IPC分类号： B27C3/08
摘要： PURPOSE:To cut off efficiently without trouble even for a thick plate by providing a rotating center drill bit and a cut drill bit rotating on its own axis while revolving around the center drill bit. CONSTITUTION:A motor case 3 with a motor 30 built in a housing 2 provided with a gripping section 2 is installed slidably in the axial direction and a cup- shaped dust collector 25 is installed in the housing 2 on a cutting tool for installing an illuminating instrument, a speaker or the like on a ceiling face or the like. A center drill bit 4 is mounted on a shaft 40 directly connected with an output shaft of the motor 30, and a spindle 52 supporting a cutter drill bit 5 is revolved on an internal gear 38 rotated by the motor output shaft through gears 36 and 37. A cut off opening is formed on a ceiling face or the like by rotating the spindle 52 through gears 45, 46 and 53.

6. 发明专利

JPH04112608A WIRE STRIPPER 失效
公开(公告)号：JPH04112608A
公开(公告)日：1992-04-14
申请号：JP23163390
申请日：1990-08-31
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HONGO SHOICHI , HATTA HIDEO
IPC分类号： H02G1/12
摘要： PURPOSE:To strip an insulated wire easily by providing a driving unit for projecting a cutter to the inside of a tubular body having a wire insertion hole while inclining against the center of the insertion hole and for rotating the tubular body. CONSTITUTION:A tubular body 2 having an insertion hole 20 corresponding to the diameter of a wire (c) is inserted into a rotary pipe 14 and secured in place. A switch 11 at a power section 6 is then turned ON to rotate a rotary drive unit 3 by means of an incorporated motor and the rotational speed is then decreased through a gear section 7 to rotate the tubular body 2 in the direction of an arrow. The wire (c) is then inserted into the insertion hole 20 and brought into contact with a cutter 1 projected while inclining against the axis of the tubular body 2. Projection of the cutter 1 is set slightly shorter than the thickness of the insulation coating of the wire (c). Stripped coating is discharged through a window 30 to the outside. According to the constitution, predetermined length of insulation coating can be stripped off without causing damage on the core wire.

7. 发明专利

JPH01170329A MOTOR-DRIVEN TOOL POWERED BY STORAGE BATTERY 失效
公开(公告)号：JPH01170329A
公开(公告)日：1989-07-05
申请号：JP32633587
申请日：1987-12-23
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HONGO SHOICHI , KOTAKE NORIO
IPC分类号： B25F5/00 , H01M10/46 , H02J7/00
摘要： PURPOSE:To conveniently charge in response to a using state by removing a storage battery pack detachable from a motordriven tool body from the body, charging it, and providing a sub charging terminal which can charge while it is mounted on the body. CONSTITUTION:A main case 10 containing a motor-driven tool, such as a screwdriver is connected to a sub case 11 from which a storage battery pack 2 is detachable, thereby forming a body 1. The pack 2 is removed from the case 11, inserted to a charging adapter 8A, and charged. When the pack 2 remains inserted to the case 11, it is set to a charging adapter 8B, and the pack 2 is charged from a sub charging terminal 14 provided on the sidewall of the case 11. When a plurality of the packs 2 are provided, if they are charged by the adapters 8A, the tool can be continuously used. Thus, it can be conveniently charged in response to the using state of the tool.

8. 发明专利

JPH0791420A RIVET AND TOOL FOR RIVET CONSTRUCTION 失效
公开(公告)号：JPH0791420A
公开(公告)日：1995-04-04
申请号：JP23995193
申请日：1993-09-27
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： FUJIKAWA KENICHIRO , HONGO SHOICHI , TORIGOE MASAO
IPC分类号： B25C1/06 , F16B19/10
摘要： PURPOSE:To improve workability at a low cost by providing a hollow shaft section which is inserted into a plural number of overlapped members to be connected, a head which is at an end on the shaft section opening side and whose diameter is larger than that of the shaft section, and a projection piece which is pushed in the shaft section from the head section side to form a projection section for caulking on an outer face of the shaft section. CONSTITUTION:A rivet main body 1 is made of metal in which a head 3 like flange is provided integrally at one end of an opening side of a cylindrical shaft section having a bottom. To connect a plural number of overlapped members to be connected 9, a hole 90 which goes through them is drilled, and the shaft section 2 is inserted into the hole 90 to bring the head 3 into contact with a surface of the member to be connected 9. Then, when a projection piece 4 is hit into an inner part in the shaft section 2 from an opening on the head 3 side by a tool, the projection piece 4 expands the shaft section 2 due to plastic deformation when it passes through a section of a projection section 20 and forms a projection section 22 for caulking which holds the member to be connected 9 between the head 3 and it on an outer face of the shaft section 2. The projection piece 4 reamins in the shaft section 2 after this to reinforce the rivet main body 1. As a consequence, it is possible to realize a low cost and excellent workability owing to this constitution.

9. 发明专利

JPH06206203A CUTTING METHOD AND TOOL THEREFOR 失效
公开(公告)号：JPH06206203A
公开(公告)日：1994-07-26
申请号：JP1399093
申请日：1993-01-29
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： MIZOGUCHI SOICHIRO , RYU KUNIHIKO , OKAMURA HIDESUMI , HATTA HIDEO , HONGO SHOICHI
IPC分类号： B26B7/00 , B23D61/12 , B27B19/09 , B27B23/00
摘要： PURPOSE:To perform cutting quickly without interruption of operation even at a time of change in direction of movement, and obviating the processing of bottom holes. CONSTITUTION:A cutting tool is used for cutting in which a cutter 2 is provided with the first cutting edge 3a and the second cutting edge 3 b that have teeth cut mutually in the opposite direction on both side edges, and with the the third cutting edge 3c at the tip of the cutter 2, and it is driven in a reciprocating and rocking motion. The first stage in which cutting of an object 4 to be cut by the third cutting edge 3 c starts, the second stage, following the first stage, in which the cutting tool is moved into the specified direction, and the object 4 to be cut is cut by the first cutting edge 3a, and the third stage in which the cutting tool is moved into another diction, and the object 4 to be cut is cut by the second cutting edge 3b are consecutively performed.

10. 发明专利

JPH04171108A DRILL BIT 失效
公开(公告)号：JPH04171108A
公开(公告)日：1992-06-18
申请号：JP29643390
申请日：1990-10-31
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HONGO SHOICHI , TORIGOE MASAO
IPC分类号： B23B51/00
摘要： PURPOSE:To drill a hole into a completely circular shape in a drill bit for drilling an iron plate or the like by providing a part having the same radius as that of a rake angle part on a side which is opposite to the above part at sight from the rake angle part with a central axis put between them, and establishing a dimension from the outer periphery of a part except both the rake angle parts to the central axis to be less than the above radius. CONSTITUTION:The cutting part 10 of a drill bit 1 is provided with plural stepped parts 12, different in a diameter, whose tips are thinned and mutually connected through tapered parts 13. The sectional shape of the cutting part 10 is formed into an elliptical shape having a line passing a rake angle part 3 and a central axis (O) as a major axis in disregard of a grooved part 2. Namely, a part having the same radius r2 as the radius r1 of the rake angle part 3 is provided on a side which is opposite to the rake angle part 3 with the central axis (O) put between the above parts, and dimensions from the central axis (O) of parts except the rake angle part 3 and the above part are established to be less than the radiuses r1, r2. This formation makes a diameter in a cutting line coincide with the diameter of the drill bit to produce a hole having a completely circular shape.

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