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GB1414337A - Screw driving apparatus including automatic stopping means - Google Patents

Screw driving apparatus including automatic stopping means

Info

Publication number
GB1414337A
GB1414337A GB2443873A GB2443873A GB1414337A GB 1414337 A GB1414337 A GB 1414337A GB 2443873 A GB2443873 A GB 2443873A GB 2443873 A GB2443873 A GB 2443873A GB 1414337 A GB1414337 A GB 1414337A
Authority
GB
United Kingdom
Prior art keywords
relay
circuit
overload
motor
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2443873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5050972A external-priority patent/JPS5227400B2/ja
Priority claimed from JP3247173A external-priority patent/JPS5315240B2/ja
Application filed by Individual filed Critical Individual
Publication of GB1414337A publication Critical patent/GB1414337A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Protection Of Generators And Motors (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

1414337 Overload protection circuit K TOTSU 22 May 1973 [22 May 1972 20 March 1973] 24438/73 Heading H2K [Also in Division B3] An electric motor driven screwdriver is provided with automatic stopping means comprising a circuit for detecting the presence of an overload current which lasts for longer than a certain set time and operating a relay in response to this overload to switch off the power to the motor, the power being subsequently restored by the circuit after a further set time. The circuit comprises a constant voltage circuit 14a formed by a Zener diode in parallel with a capacitor, and a resistor R L in the supply lead 18b to the motor 16, and a transistor TR1 which senses the difference between the voltage across R L and the voltage from the constant voltage circuit. In the event of overload, transistor TR1 conducts and causes transistor TR2 to turn on to pass current to relay RY1 in parallel with capacitor C2, which capacitor charges in a predetermined time dependent upon values of R6 and C2 to a voltage which actuates relay RY1. This time delay prevents operation of the relay due to a transient overload, but does cause operation due to the overload which occurs at the end of each screwing-up operation. The contacts 20 of relay RY7 close to pass current to relay RY2 which breaks the circuit to the motor and stops it. Transistor TR1 is then turned off as the voltage across the R L drops to zero and after a further time dependent upon the vlaues of capacitor C2 and resistor R6 the relay RY1 is released to energize the motor again. A polarity reversing switch 24 is provided to reverse the motor, to undo screws or nuts, and so arranged that in the reverse connection the overload circuit is cut out.
GB2443873A 1972-05-22 1973-05-22 Screw driving apparatus including automatic stopping means Expired GB1414337A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5050972A JPS5227400B2 (en) 1972-05-22 1972-05-22
JP3247173A JPS5315240B2 (en) 1973-03-20 1973-03-20

Publications (1)

Publication Number Publication Date
GB1414337A true GB1414337A (en) 1975-11-19

Family

ID=26371054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2443873A Expired GB1414337A (en) 1972-05-22 1973-05-22 Screw driving apparatus including automatic stopping means

Country Status (8)

Country Link
US (1) US3845373A (en)
CA (1) CA1006606A (en)
CH (1) CH556221A (en)
DE (1) DE2326027C3 (en)
FR (1) FR2185480B1 (en)
GB (1) GB1414337A (en)
NL (1) NL175888C (en)
SE (1) SE398314B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803826A1 (en) * 1977-02-08 1978-08-10 Ass Eng Ltd OVERLOAD PROTECTION

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2449009B1 (en) * 1974-10-15 1975-10-09 Schwing Hydraulik Elektronik K Device for tightening and loosening one of several nuts intended for pressure-tight closing of a reactor pressure vessel
DE2516951C3 (en) * 1975-04-17 1981-09-03 Robert Bosch Gmbh, 7000 Stuttgart Control device for switching off the drive motor of an electrically operated screwdriver
US4210852A (en) * 1975-11-14 1980-07-01 Atlas Copco Aktiebolag Electric nutrunner
JPS5399149U (en) * 1977-01-17 1978-08-11
DE2704820A1 (en) * 1977-02-05 1978-08-17 Eller Vertriebs Ingbuero OVERLOAD PROTECTION CIRCUIT FOR ELECTRIC MOTORS
DE2724293C2 (en) * 1977-05-28 1984-09-06 C. & E. Fein Gmbh & Co, 7000 Stuttgart Electronic circuit arrangement for torque limitation
US4220900A (en) * 1978-06-16 1980-09-02 Sky-Top Sunroofs Ltd. Motor control system for a linearly reciprocating load device such as automotive vehicle closure including sun roof
DE3210929A1 (en) * 1982-03-25 1983-10-06 Bosch Gmbh Robert METHOD AND DEVICE FOR SWITCHING OFF SCREWING DEVICES
JPS58177210A (en) * 1982-04-05 1983-10-17 Nitto Giken Kk Drill
DE3222065A1 (en) * 1982-06-11 1983-12-15 Black & Decker, Inc. (eine Gesellschaft n.d.Ges.d. Staates Delaware), 19711 Newark, Del. Electric hand tool with rotation direction reversal and torque limiting
US4555093A (en) * 1982-10-19 1985-11-26 Ex-Cell-O Corporation Cable pulling device with force indicator and overload protection
JPS60153692U (en) * 1984-03-23 1985-10-14 アルプス電気株式会社 Motor drive control device
DE3500714C1 (en) * 1985-01-11 1988-12-22 Kipfelsberger, Albert, 8070 Ingolstadt Power wrench with torque limitation
US4734629A (en) * 1985-08-09 1988-03-29 Black & Decker Inc. Variable speed trigger switch
SE8701749D0 (en) * 1987-04-28 1987-04-28 Electrolux Ab DEVICE FOR WIRING AN ELECTRIC CABLE
EP0299281A1 (en) * 1987-07-13 1989-01-18 Siemens Aktiengesellschaft Power supply protection circuit for the excitation or des-excitation of a superconducting magnet coil
DE4134495A1 (en) * 1991-10-18 1993-04-22 Bosch Gmbh Robert CONTROL DEVICE FOR ELECTRIC MOTORS IN VEHICLES
GB9320181D0 (en) * 1993-09-30 1993-11-17 Black & Decker Inc Improvements in and relating to power tools
US6304046B1 (en) * 1999-10-05 2001-10-16 Samsung Electronics Co., Ltd. Driving control circuit of a hood motor
JP4823499B2 (en) * 2004-07-23 2011-11-24 勝行 戸津 Control method of brushless motor driven rotary tool
JP2006062065A (en) * 2004-08-30 2006-03-09 Katsuyuki Totsu Method and device for controlling screw-fastening in electric rotating tool
US7889471B2 (en) * 2006-04-05 2011-02-15 Echelon Corporation Power supply particularly for a meter-bus
CN101247100B (en) * 2007-02-16 2012-01-25 苏州宝时得电动工具有限公司 Electric tool control method and electric tool using the same
DE102007019408B3 (en) * 2007-04-23 2008-11-27 Lösomat Schraubtechnik Neef Gmbh power wrench
DE102007019409B3 (en) * 2007-04-23 2008-11-13 Lösomat Schraubtechnik Neef Gmbh power wrench
US20090065225A1 (en) * 2007-09-07 2009-03-12 Black & Decker Inc. Switchable anti-lock control
US7854274B2 (en) 2007-11-21 2010-12-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
US8269612B2 (en) 2008-07-10 2012-09-18 Black & Decker Inc. Communication protocol for remotely controlled laser devices
EP2149431A1 (en) 2008-07-31 2010-02-03 Alexander Kipfelsberger Screw device with torque limitation
CN101771379B (en) * 2009-01-04 2015-02-04 苏州宝时得电动工具有限公司 Control method of electric tool and electric tool executing same
US9908182B2 (en) 2012-01-30 2018-03-06 Black & Decker Inc. Remote programming of a power tool
US8919456B2 (en) 2012-06-08 2014-12-30 Black & Decker Inc. Fastener setting algorithm for drill driver
DE102012220482A1 (en) * 2012-11-09 2014-05-15 Wagner Vermögensverwaltungs-GmbH & Co. KG Method for controlling a rotary screwdriver and screwdrivers
CN104339299B (en) * 2013-08-06 2019-04-19 苏州宝时得电动工具有限公司 A kind of electric tool
US10011006B2 (en) 2013-08-08 2018-07-03 Black & Decker Inc. Fastener setting algorithm for drill driver
CN103433882B (en) * 2013-09-02 2016-08-10 东莞市聚川装配自动化技术有限公司 Control method of current feedback type numerical control electric screwdriver
CN104827276B (en) * 2014-02-12 2018-10-16 海洋王（东莞）照明科技有限公司 Rotating dress matches device
CN110253272B (en) * 2019-07-01 2021-07-13 友创工业股份有限公司 screw system
EP4263138A1 (en) 2020-12-18 2023-10-25 Black & Decker Inc. Impact tools and control modes

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1970179A (en) * 1933-02-10 1934-08-14 Charles A Miller Power wrench
CH389075A (en) * 1962-01-20 1965-03-15 Arnold Perret Jean Electronic switching device responsive to overcurrent
US3246170A (en) * 1962-09-17 1966-04-12 Hallicrafters Co Sweep and function generator employing difference amplifier controlling varaible reactor
US3395324A (en) * 1965-11-12 1968-07-30 Columbus Mckinnon Corp Solid state phase reversal protector for three phase hoist motor
DE1588032A1 (en) * 1966-03-18 1970-06-25 Biviator Sa Electrical limiting circuit
GB1189650A (en) * 1966-06-29 1970-04-29 Archdale James & Co Ltd Adjustable Current Sensitive Relay.
GB1176018A (en) * 1967-08-03 1970-01-01 English Electric Co Ltd Improvements in Definite-Time Relays.
DE1815015A1 (en) * 1968-12-17 1970-07-02 Josef Mueller Electrically writable hand screwing tool
US3555357A (en) * 1969-07-03 1971-01-12 Motorola Inc Over-current protection for an alternating current circuit including automatic reset
DE1935586A1 (en) * 1969-07-12 1971-01-14 Fein C & E Impact screwdriver driven by an electric motor
SE353821B (en) * 1970-02-09 1973-02-12 Asea Ab
US3660718A (en) * 1970-06-08 1972-05-02 Honeywell Inc Automatically resetting motor protection circuit responsive to overcurrent and overtemperature
US3742302A (en) * 1971-10-12 1973-06-26 Carrier Corp Motor relay protection for refrigerant compressor motors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803826A1 (en) * 1977-02-08 1978-08-10 Ass Eng Ltd OVERLOAD PROTECTION

Also Published As

Publication number Publication date
CH556221A (en) 1974-11-29
NL7307152A (en) 1973-11-26
FR2185480B1 (en) 1977-07-29
DE2326027B2 (en) 1977-02-10
NL175888B (en) 1984-08-16
DE2326027A1 (en) 1973-12-20
NL175888C (en) 1985-01-16
DE2326027C3 (en) 1982-07-29
FR2185480A1 (en) 1974-01-04
SE398314B (en) 1977-12-19
CA1006606A (en) 1977-03-08
US3845373A (en) 1974-10-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930521