EP0239698B1 - Kraftangetriebener Schraubenzieher - Google Patents

Kraftangetriebener Schraubenzieher Download PDF

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Publication number
EP0239698B1
EP0239698B1 EP86308715A EP86308715A EP0239698B1 EP 0239698 B1 EP0239698 B1 EP 0239698B1 EP 86308715 A EP86308715 A EP 86308715A EP 86308715 A EP86308715 A EP 86308715A EP 0239698 B1 EP0239698 B1 EP 0239698B1
Authority
EP
European Patent Office
Prior art keywords
casing
screwdriver
gallery
clutch
motor
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 - Lifetime
Application number
EP86308715A
Other languages
English (en)
French (fr)
Other versions
EP0239698A2 (de
EP0239698A3 (en
Inventor
Roger Robert Saunders
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.)
Air Compressors and Tools Ltd
Original Assignee
Desoutter Ltd
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
Application filed by Desoutter Ltd filed Critical Desoutter Ltd
Priority to AT86308715T priority Critical patent/ATE60535T1/de
Publication of EP0239698A2 publication Critical patent/EP0239698A2/de
Publication of EP0239698A3 publication Critical patent/EP0239698A3/en
Application granted granted Critical
Publication of EP0239698B1 publication Critical patent/EP0239698B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • 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
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation

Definitions

  • This invention relates to a power operated screwdriver.
  • the power operated screwdriver known in the art comprises a casing, a motor mounted in the casing, a screwdriver bit holder mounted in the casing for rotation by the motor, a torque sensitive clutch interposed between the motor and the bit holder, a suction pick-up finder at a front end of the casing adjacent to the bit holder for picking up and locating a screw to be driven, and means for connecting a source of negative pressure to the finder, the said means comprising a gallery within the casing and extending rearwardly from a position adjacent to the front end of the casing and a duct or pipe which communicates with the rear end of the gallery and which is connectable to a source of negative pressure at or adjacent to the rear end of the casing.
  • a source of negative pressure to the finder
  • CH-A-404 584 also discloses an arrangement in which, instead of an annular gallery, there is an axial gallery which extends to the rear end of the screwdriver through relatively rotating hollow members, so that debris sucked up can come into contact with moving parts of the screwdriver.
  • the power operated screwdriver of the present invention is characterised in that the gallery is annular or substantially annular, it is provided around the clutch and is defined by stationary parts of the screwdriver, the radially outer extent of the gallery being defined by an inner wall of the casing, the radially inner extent of the gallery being defined by a stationary sleeve around the clutch, and the rear end of the gallery being behind the rear end of the clutch.
  • the power operated screwdriver shown therein comprises an elongate tubular casing 10 accommodating in known manner a motor 11, which is preferably pneumatically operated but which may be electrically operated, a reduction gear box 12, a torque sensitive clutch 13, and a bit holder 14 rotatable by the motor 11 via the gearbox 12 and clutch 13, and supporting a replaceable screwdriver bit 9.
  • a suction pick-up finder sleeve 15 is mounted at the front end of the casing 10 for locating a screw 16 picked up by a negative pressure applied to the finder sleeve 15.
  • Negative pressure is communicated from a source thereof, e.g. a vacuum pump (not shown), to a chamber 17 at the front end of the casing 10, via a pipe 18 and an annular gallery 19.
  • the annular gallery 19 surrounds the clutch 13 and is defined between the inner wall of the casing 10 and a sleeve 20.
  • the sleeve 20 is supported at its front end on a bush 21 in which the bit holder 14 is rotatably mounted and at its rear end in an adaptor 22, and defines an outer casing of the clutch 13.
  • the pipe 18 communicates with the gallery 19 and extends longitudinally within the casing 10 from a position adjacent to the rear end of the gallery 19 to a position adjacent to the rear end of the casing 10.
  • this pipe 18 could be replaced by an elongate duct defined between inner and outer casing parts.
  • the gallery 19 is annular or at least substantially annular the effective mean increase in diameter of the front end of the casing 10 necessary to accommodate this gallery is small and consequently the operator's view of the front end of the screwdriver is not obscured. Moreover, any debris that is sucked up by the negative pressure is kept clear of those moving parts of the screwdriver which could become jammed by such debris.

Claims (3)

1. Kraftangetriebner Schraubenzieher mit einem Gehäuse (10), einem in diesem Gehäuse (10) angebrachten Motor (11), einem im Gehäuse (10) angebrachten und durch den Motor (11) drehbaren Schraubenziehereinsatz-Halter (14), einer zwischen dem Motor (11) und dem Einsatz-Halter (14) eingesetzten Drehmoment-Kupplung (13), einer Saug-Aufnahme-Führung (15) am Vorderende des Gehäuses (10), angrenzend an den Einsatz-Halter (14), zum Aufnehmen und Festhalten einer anzutreibenden Schraube (16), und Einrichtungen zum Verbinden der Führung (15) mit einer Unterdruck-Quelle, wobei diese Einrichtungen einen Gang (19) im Gehäuse (10), welcher sich von einer Stelle nahe dem Vorderende des Gehäuses (10) nach hinten erstreckt, sowie eine Leitung oder ein Rohr (18) umfassen, welche(s) mit dem hinteren Ende des Ganges (19) in Verbindung steht und am hinteren Ende des Gehäuses (10) oder hinter diesem Ende mit einer Unterdruck-Quelle verbindbar ist, dadurch gekennzeichnet, daß der Gang (19) ringförmig oder im wesentlichen ringförmig und um die Kupplung (13) herum angeordnet und durch feststehende Teile des Schraubenziehers gebildet ist, wobei der radial äußere Teil des Ganges durch eine innere Wandung des Gehäuses (10), der radial innere Teil des Ganges durch eine feststehende Buchse (20) um die Kupplung (13) gebildet ist und das hintere Ende des Ganges (19) hinter dem Hinterende der Kupplung (13) liegt.
2. Schraubenzieher nach Anspruch 1, bei welchem die Leitung oder das Rohr (18) innerhalb des Gehäuses verläuft.
3. Schraubenzieher nach Anspruch 1 oder 2, bei welchem ein Getriebe (12) zwischen dem Motor (11) und der Kupplung (13) eingesetzt ist.
EP86308715A 1986-04-04 1986-11-07 Kraftangetriebener Schraubenzieher Expired - Lifetime EP0239698B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86308715T ATE60535T1 (de) 1986-04-04 1986-11-07 Kraftangetriebener schraubenzieher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8608232 1986-04-04
GB8608232A GB2188575B (en) 1986-04-04 1986-04-04 A power operated screwdriver

Publications (3)

Publication Number Publication Date
EP0239698A2 EP0239698A2 (de) 1987-10-07
EP0239698A3 EP0239698A3 (en) 1988-09-14
EP0239698B1 true EP0239698B1 (de) 1991-01-30

Family

ID=10595664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86308715A Expired - Lifetime EP0239698B1 (de) 1986-04-04 1986-11-07 Kraftangetriebener Schraubenzieher

Country Status (5)

Country Link
EP (1) EP0239698B1 (de)
AT (1) ATE60535T1 (de)
DE (1) DE3677372D1 (de)
ES (1) ES2019876B3 (de)
GB (1) GB2188575B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107000178A (zh) * 2014-12-11 2017-08-01 阿特拉斯·科普柯工业技术公司 具有真空螺丝拾取特性的螺丝起子

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1024763Y (es) * 1993-05-07 1994-06-16 Bernat Enrique F Sa Dispositivo para la sujecion de caramelos con un asidero.
JP5878745B2 (ja) * 2011-12-09 2016-03-08 日東精工株式会社 ドライバビット
US20140251094A1 (en) * 2013-03-11 2014-09-11 Tera Autotech Corporation Air suction screw tightening apparatus
JP6325100B2 (ja) * 2013-11-08 2018-05-16 アトラス・コプコ・インダストリアル・テクニーク・アクチボラグ 動力工具用真空アダプタ
SE540840C2 (en) * 2017-05-16 2018-11-27 Atlas Copco Ind Technique Ab Power screw driver with screw pick-up feature.
CN110861023B (zh) * 2019-12-02 2021-06-29 上海航天科工电器研究院有限公司 一种带吸附功能的螺丝刀
WO2022266764A1 (en) * 2021-06-25 2022-12-29 Robotiq Inc. Adjustable fastener feeder flexible and vacuum fastener gripping attachment for automatic screwdriver

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE675561A (de) *
US2570164A (en) * 1947-01-02 1951-10-02 Keller Tool Co Power-operated screw driver
CH404584A (de) * 1963-06-13 1965-12-15 Langendorf Watch Co Vorrichtung zum Einschrauben von Schräubchen
DE1278966B (de) * 1963-11-14 1968-09-26 Burnand S A Eindrehwerkzeug, insbesondere fuer kleine Schrauben
US3581607A (en) * 1969-02-24 1971-06-01 Ingersoll Rand Co Depth measuring power wrench
GB1339657A (en) * 1971-11-05 1973-12-05 Desoutter Brothers Ltd Pneumatic screwdriver or like rotary tool
SU564146A1 (ru) * 1975-01-16 1977-07-05 Предприятие П/Я А-7555 Резьбозавертывающий инструмент с вакуумным захватом винтов
DE3003390A1 (de) * 1980-01-31 1981-08-06 Robert Bosch Gmbh, 7000 Stuttgart Druckluftschrauber mit einer einrichtung zum zufuehren und halten der schraube durch saugluft
DE8610107U1 (de) * 1986-04-14 1986-08-28 W.E.G.-Legrand GmbH, 4770 Soest Schrauber mit mindestens einem Druckluftkanal und mindestens einem Luftansaugkanal zu einer axial verschieblichen Hülse für die Schraubspindel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107000178A (zh) * 2014-12-11 2017-08-01 阿特拉斯·科普柯工业技术公司 具有真空螺丝拾取特性的螺丝起子
CN107000178B (zh) * 2014-12-11 2019-04-23 阿特拉斯·科普柯工业技术公司 具有真空螺丝拾取特性的螺丝起子

Also Published As

Publication number Publication date
GB2188575B (en) 1989-11-15
EP0239698A2 (de) 1987-10-07
GB2188575A (en) 1987-10-07
DE3677372D1 (de) 1991-03-07
GB8608232D0 (en) 1986-05-08
ES2019876B3 (es) 1991-07-16
ATE60535T1 (de) 1991-02-15
EP0239698A3 (en) 1988-09-14

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