EP2135714A2 - Outil de vissage comprenant un mécanisme de roue libre - Google Patents

Outil de vissage comprenant un mécanisme de roue libre Download PDF

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Publication number
EP2135714A2
EP2135714A2 EP09172019A EP09172019A EP2135714A2 EP 2135714 A2 EP2135714 A2 EP 2135714A2 EP 09172019 A EP09172019 A EP 09172019A EP 09172019 A EP09172019 A EP 09172019A EP 2135714 A2 EP2135714 A2 EP 2135714A2
Authority
EP
European Patent Office
Prior art keywords
drive arm
gear
screwing tool
axis
tool according
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.)
Granted
Application number
EP09172019A
Other languages
German (de)
English (en)
Other versions
EP2135714A3 (fr
EP2135714B1 (fr
Inventor
Michael Abel
André Müller
Oliver Pistor
Martin Strauch
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.)
Wera Werk Hermann Werner GmbH and Co KG
Original Assignee
Wera Werk Hermann Werner GmbH and Co KG
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 Wera Werk Hermann Werner GmbH and Co KG filed Critical Wera Werk Hermann Werner GmbH and Co KG
Publication of EP2135714A2 publication Critical patent/EP2135714A2/fr
Publication of EP2135714A3 publication Critical patent/EP2135714A3/fr
Application granted granted Critical
Publication of EP2135714B1 publication Critical patent/EP2135714B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/06—Handle constructions reversible or adjustable for position
    • B25G1/063—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • 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
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0021—Prolongations interposed between handle and tool
    • 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
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0028—Angular adjustment means between tool head and handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/06—Handle constructions reversible or adjustable for position
    • B25G1/063—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners
    • B25G1/066—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners the grip itself being angularly adjustable

Definitions

  • the invention relates to a screwing tool according to the preamble of the main claim.
  • a wrench with a gear head and a drive arm wherein the gear head forms a gear housing in which a freewheel or ratchet gear is arranged with a driven axis of rotation, wherein an end face of the gear head has a driven coupling in the form of a polygon and wherein the drive arm to a in the Substantially transverse to the output axis of rotation extending pivot axis of a Schnellschraubhus in which the drive arm in the driven axis, in a Kraftschraubwolf is pivotally, in which the drive arm extends substantially transverse to the output axis of rotation, and is fixed in the two pivot positions mediate locking means, wherein the locking means can be displaced from a detent position to a release position by means of an actuating member assigned to the drive arm.
  • the actuating means is in this screwing a parallel to the pivot axis displaceable pin. This interacts with a detent ball, which cooperates with detent niches of a bearing extension of the gear head.
  • the bearing extension is a narrow section of the gear head, which faces the output square. This extension is penetrated by a bearing screw.
  • the lever is located in a side recess of a handle and can be pivoted 90 ° about a pivot axis.
  • the drive arm is axially fixed to a driven blade connected.
  • the drive arm consists of two parts. A part can be pivoted about a pivot axis in a 90 ° position.
  • the US 4,541,310 describes a screwing tool, with a drive arm, which is connected via an eccentric joint with a gear head.
  • the drive arm can be brought by 90 ° from a Schnellschraub- in a Kraftschraubgna.
  • the US 1,601,767 describes a screwing tool with a drive arm which is firmly connected to a gear head. On a drive projection of the gear head, a screwdriver handle can be plugged.
  • a similar solution describes the US 4,054,067 ,
  • the invention has for its object to further develop the above-mentioned screw advantageously use.
  • the latching means is arranged in the drive arm, displaceable in its direction of extension locking pin.
  • the locking pin can eino in an axial bore of the drive arm. It can be moved against the restoring force of a spring from its detent position to its release position.
  • a slide button is preferably used. This can sit directly adjacent to the gear head on a broad side of a widening of the drive arm.
  • two sliding buttons are provided, which are located on the opposite broad sides of the drive arm. These sliding buttons can be connected to each other by means of connecting webs or connected to the locking pin.
  • the transmission housing preferably has a substantially circular outer wall. On the outer wall there are two diametrically opposite bearing openings in which journals stuck.
  • the pivot axis formed by the two pivot pins intersects the output axis of rotation substantially at right angles.
  • the gear housing is connected to the ends of arcuate teeth of the drive arm.
  • the two prongs form a transmission fork comprehensive mounting fork.
  • the end of the locking pin protrudes into the fork space.
  • the locking pin can from the two mutually motion-coupled sliding buttons from the fork gap be pulled out.
  • the gear head forms a dome.
  • the surface of the dome is part of a spherical surface. In the dome are a plurality of locking recesses into which the end of the locking pin can enter to fix the gear head in different pivotal positions relative to the drive arm.
  • the gear head can also be further pivoted to a 90 ° position in which the drive arm is in a Kraftschraub ein to the drive axis of rotation.
  • the contour axis of the drive arm is now pivoted by 90 ° with respect to the output axis of rotation.
  • the locking recess in which the locking pin engages in this position, is located in the annular gear housing.
  • This latching recess lies in the same plane in which a diametrically opposite latching recess and the two bearing journals are located.
  • the dome not only serves to switch the direction of rotation of the ratchet or freewheel gear.
  • the dome can also be displaced in the axial direction with respect to the output axis of rotation.
  • the release slide is part of a captive device for a nut or the like, which can be plugged onto the output square.
  • the dome can be relocated using one of the two sliding buttons.
  • the sliding knob arranged close to the fork root is displaced in the opposite direction, that is to say on the fastening fork, as a result of which the locking pin is pressed deeper into the latching recess of the dome becomes. He acts on the bottom of the locking recess and moves the dome in the axial direction of the output axis of rotation to relocate the release slide.
  • the latter cooperates with a detent ball, which cooperates in a corresponding latching recess of a wall of an insertion opening of the nut.
  • the locking pin is held by two counteracting compression springs in a neutral position, from which it can be moved either in a release position for pivoting the gear head or to release the captive device.
  • the detent ball lies in front of a wall of the release slide.
  • the release position the detent ball can escape radially inwards.
  • the release slider has a pocket.
  • the ball is displaced by an oblique side wall of the bag again radially outward.
  • the dome of the gearhead forms a direction switch for the freewheel gear.
  • the output square 204 is firmly connected to a freewheel gear 202 of the gear head 205, not shown in detail.
  • the freewheel gear 202 is located within a ring clearance, which is formed by a transmission housing 212.
  • the transmission housing 212 has a substantially annular shape.
  • On the opposite side of the transmission housing 212 to the output square 204 is a switching dome 219. This can be made of metal or plastic.
  • the transmission housing 212 is preferably as well as the output square 204 made of steel.
  • the switching dome 219 can be rotated about its switching axis, which coincides with the driven rotational axis 201, in order to change over the blocking direction or the free-wheeling direction of the merely indicated freewheeling gear 202.
  • the freewheel gear 202 has a ratchet mechanism or the like, which allows a rotation of the output four-square 204 in one direction and locks in the other direction.
  • the dome 219 can also be axially displaced in the direction of the output axis 201 beyond. This is done against the restoring force of a compression spring 224.
  • the release slide 221 is moved from its bondage position to its release position.
  • the release slide 221 is immovably connected to the dome 219.
  • the dome 219 is located in a bearing recess of the transmission housing 212 with a corresponding Axialambasabilauf.
  • the gear housing 212 has two diametrically opposite latching recesses 210. Between the two latching recesses 210 has the gear housing 212 bearing openings in which bearing pins 223 stuck.
  • the bearing pins 223 define a pivot axis 208 which intersects the output rotational axis 201 at right angles.
  • the attachment fork is formed by two arcuate fork tines 217.
  • the inner wall of the forks 217 is dome-shaped. The inner wall of the fork tines 217 thus nestles substantially flush with the surface of the gear housing 212 in the force screw position shown in FIG. 19.
  • the dome 219 has in its vertex a latching recess 209. Between the latching recess 210 of the gear housing 212 and the central latching recess 209, a further latching recess 211 is arranged. This is also associated with the transmission housing 212. Further locking recesses could also be provided in the area of the switching dome 219.
  • the immediately adjacent to the root of the mounting fork portion of the drive arm 203 is widened.
  • this widened section is a slide button 213. It is located on each of the two facing away from each broad side of this section a slide button 213.
  • the area between the handle 207 and the widened portion of the drive arm 203 has a circular narrower cross section.
  • the two sliding buttons 213 have connecting webs 218 which reach into a passage opening 222. With the connecting webs 218, the two sliding buttons 213 are interconnected.
  • the connecting webs 218 are offset laterally and axially offset from one another. They can form unillustrated hooks to lock the two opposing sliding buttons 213 together.
  • the connecting webs 218 overlap each other.
  • the connecting webs 218 also form a positive locking driving coupling with the locking pin 6 in order to be able to displace it in the direction of its axis.
  • Each of the two sliding buttons 213 is located in a recess 216 of the flat portion of the drive arm 203rd
  • the slide button 213 engages with its connecting web 218 on the locking pin 206.
  • the connecting web thus forms the connection between slide button 213 and locking pin 206.
  • On both sides of the connecting web 218 are compression springs.
  • a first compression spring 214 must be compressed to pull the locking pin 206 out of one of the locking recesses 209, 210 or 211.
  • the other compression spring 215 is compressed by an opposite displacement of the slide button 213.
  • the compression springs 214, 215 are each supported on the connecting webs 218 and on the wall of the through opening 222.
  • the locking pin 206 is pressed deeper into the fork gap or in the locking recess 209. If the locking pin 206 pressed into this the vertex of the dome 219 associated locking recess 209, the dome 219 is displaced.
  • the release slider 221 is shifted to its release position.
  • the two springs 214, 215 hold the slide button 213 or both slide buttons 213 in a middle neutral position, from which they in each opposite direction of actuation in the extension direction of the drive arm 203 can be displaced to either release the detent ball 220 or to release the pivoting of the gear head 205.
  • the two push buttons 213 can be moved by the thumb of the hand of the actuator.
  • the two sliding buttons 213 are therefore preferably in the immediate vicinity of the gear head 205, ie at the handle 217 opposite end of the drive arm 203.
  • the slide button 213 arranged on both sides the bondage of the gear head 205 and the locking of a nut in each pivot position of the drive arm 203rd be solved. This is done with a single actuator, namely the slide button 213.
  • the displacement of the slide button 213 takes place in the direction of the output axis of rotation 201.
  • the bottom of the recess 216 is located in a plane parallel to the plane in which the forks 217 lie.
  • the drive arm 203 is circular-cylindrical in shape and surrounded by a rotatable sleeve 226.
  • the rotatable sleeve 226 may be made of plastic. It is the drive arm 203 axially fixed but rotatably associated. In the embodiment, the rotatable sleeve 226 has a corrugation. This sleeve can be used by a user's hand in the Fig. 3 shown Schnellschraub ein be included. With the other hand, the user can transmit a rotary motion to the handle 207. The user transmits an angular momentum to the screwing tool.
  • the screwing tool Since essential elements of the screwing tool are made of steel, it has a large flywheel. The user is thus able to transmit a relatively high angular momentum to the screwing tool. The screwing tool can thus perform a variety of rotations after applying a single "swing".
  • FIGS. 9-13 shown further embodiment differs from the previously described embodiments essentially by the increased flywheel 225.
  • the flywheel 225 is formed here by outwardly facing bulges of the handle body. These bulges are immediately adjacent to the forks 217.
  • an increased angular momentum can be imposed on the screwing tool in the high speed screwing position shown in FIG. This angular momentum is transmitted to the screw to be screwed.
  • the screwing tool can rotate freely while being held by the user on the rotatable sleeve 226.
  • FIG. 9 a total of three bulges 230 on each of the two narrow sides of the handle head, which forms the flywheel 225, are provided.
  • Recessed recesses 231 extend between the individual convexities 230. These recessed grips have a width that is sufficiently large that the finger of a hand comprising the flywheel mass 225 can engage therein. There are a total of two by a middle one Buckle 230 separate recessed grips 231 provided.
  • the flywheel 225 forming head can be covered by the hand of a user.
  • the hand also includes the gear head 225 at the same time.
  • the handle 207 need not be included.
  • the center of gravity of the entire screwing tool is in the driven-side third of the drive arm 203.
  • the center of gravity is in the region between head 225 and rotatable sleeve 226th
  • the handle 207 has a rotational symmetry. It can then be rotationally driven by the thumb, forefinger and middle finger of a user's first hand, while the user's second hand includes the rotatable sleeve 226. In this way, an angular momentum can be imposed on the screwing tool so that it can freely execute several revolutions in succession.
  • the dome-shaped configuration of the changeover switch 219 and the ribs or grooves provided on the dome surface make it possible for the direction of rotation of the freewheeling transmission 202 to be changed over in every pivoting position of the gearhead 205.
  • An essential feature of the invention is therefore u.a. also the fact that the freewheel gear 202 is switchable in each pivot position of the gear head 205.
  • the drive arm is multi-part. Its essential components are a steel body, which forms the two forks 17 and 217 and a circular cylindrical shaft for supporting the rotatable sleeve 26 and 226th
  • the steel body which may be a hardened forging, also carries the locking device for the gear head and at its free end the plastic handle 207. The latter can be plugged onto the free end be. It can also be sprayed onto the free end by injection molding.
  • the steel body is designed in such a way that its mass moment of inertia about the contour axis, which coincides with the axis of rotation in the rapid screwing position, is very high, ie above a minimum value.
  • the flywheel masses are arranged so close to the bearing fork for the gear head, that the moment of inertia of the steel body about a perpendicular to the contour axis through the fork axis, which corresponds to the axis of rotation in the Kraftschraub too is minimized, that is below a maximum value.
  • the sleeve 226 and 105 respectively axially fixed to the drive arm 203 and the shaft 104 is attached. It is essential that the sleeve 226 or 105 is rotatably mounted on the drive arm 203 or shaft 104. In a non-preferred embodiment, it can also be associated axially displaceably with the drive arm 203 or the shaft 104.
  • the bearing of the sleeve 226, 105 can be done both via a sliding bearing and a ball bearing.
  • the flywheel masses 225 are each firmly connected to the drive arm 203.
  • the flywheel masses can also be assigned to the drive arm 203 so as to be radially displaceable or pivotable. They can not only be arranged immediately adjacent to the drive head. It is also possible to arrange the flywheels at the free end of the handle. This is particularly advantageous if the flywheel masses can be displaced from a radially inner to a radially outer position. The latter can be performed by moving or pivoting the movable masses associated with the drive arm.
  • the centrifugal masses can also be assigned to the drive arm in such a way that they are automatically displaced by the centrifugal force into a position increasing the moment of inertia. This can be done against a return spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Mechanical Operated Clutches (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
EP09172019.3A 2007-02-01 2008-01-09 Outil de vissage comprenant un mécanisme de roue libre Active EP2135714B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007004987 2007-02-01
DE102007049304.7A DE102007049304B4 (de) 2007-02-01 2007-10-15 Schraubwerkzeug mit Freilaufgetriebe
EP08701351.2A EP2134513B1 (fr) 2007-02-01 2008-01-09 Outil de vissage comprenant un mecanisme de roue libre

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP08701351.2A Division EP2134513B1 (fr) 2007-02-01 2008-01-09 Outil de vissage comprenant un mecanisme de roue libre
EP08701351.2A Division-Into EP2134513B1 (fr) 2007-02-01 2008-01-09 Outil de vissage comprenant un mecanisme de roue libre
EP08701351.2 Division 2008-01-09

Publications (3)

Publication Number Publication Date
EP2135714A2 true EP2135714A2 (fr) 2009-12-23
EP2135714A3 EP2135714A3 (fr) 2010-09-01
EP2135714B1 EP2135714B1 (fr) 2015-07-01

Family

ID=39587455

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08701351.2A Active EP2134513B1 (fr) 2007-02-01 2008-01-09 Outil de vissage comprenant un mecanisme de roue libre
EP09172019.3A Active EP2135714B1 (fr) 2007-02-01 2008-01-09 Outil de vissage comprenant un mécanisme de roue libre

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08701351.2A Active EP2134513B1 (fr) 2007-02-01 2008-01-09 Outil de vissage comprenant un mecanisme de roue libre

Country Status (9)

Country Link
US (1) US7878091B2 (fr)
EP (2) EP2134513B1 (fr)
JP (1) JP5202542B2 (fr)
CN (1) CN101657302B (fr)
AU (1) AU2008209883B2 (fr)
CA (1) CA2677166C (fr)
DE (1) DE102007049304B4 (fr)
HK (1) HK1133620A1 (fr)
WO (1) WO2008092717A2 (fr)

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DE102008055581A1 (de) 2008-12-23 2010-06-24 Wera Werk Hermann Werner Gmbh & Co. Kg Drehmomentschlüssel mit veränderbarem Arbeitswinkel
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US9364942B2 (en) 2011-06-24 2016-06-14 Black & Decker Inc. Quick release socket attachment for impact wrench
US20130192860A1 (en) 2011-06-24 2013-08-01 Black & Decker Inc. Electromagnetic mode change mechanism for power tool
TWI478011B (zh) * 2011-06-29 2015-03-21 Giga Byte Tech Co Ltd 指標裝置
CN103042515A (zh) * 2011-10-14 2013-04-17 无锡沃骐医疗科技有限公司 一种便于拆卸的旋转手柄
AT512333B1 (de) * 2012-01-04 2014-09-15 Rudolf Schwarzenbacher Schraubverlängerung
JP5404848B2 (ja) * 2012-05-07 2014-02-05 月英 楊 ラチェットレンチ
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US9340368B2 (en) 2013-07-26 2016-05-17 Ball Corporation Apparatus and method for orienting a beverage container end closure and applying indicia in a predetermined location
CN103522973B (zh) * 2013-10-18 2017-01-18 上海齐迈五金有限公司 一种带救生工具的多功能汽车电源插座
TWI492823B (zh) * 2014-04-02 2015-07-21 Apex Tool Hk Ltd Spiral fast ratchet wrench
US9669525B2 (en) * 2015-02-11 2017-06-06 Min-Hua Tsai Palm wrench
US9962815B2 (en) * 2016-03-09 2018-05-08 Toolrich Imp. & Exp. Co., Ltd. Driver tool
US20170361434A1 (en) * 2016-06-17 2017-12-21 Yih Cheng Factory Co., Ltd. Ratchet wrench having positioning mechanism
US10245712B2 (en) * 2016-06-17 2019-04-02 Yih Cheng Factory Co., Ltd. Ratchet wrench having quick release structure
US20170361433A1 (en) * 2016-06-17 2017-12-21 Yih Cheng Factory Co., Ltd. Ratchet wrench with positioning structure
US9956670B2 (en) 2016-07-26 2018-05-01 Milwaukee Electric Tool Corporation Ratchet, ratchet accessory, and kit including the same
US9808917B1 (en) * 2016-09-03 2017-11-07 Yih Cheng Factory Co., Ltd. Ratchet wrench capable of rotating quickly and driving rotation
CN107081704B (zh) * 2017-06-29 2018-07-10 曹嘉洋 一种低扭力多用机电化扳手装置
CN110014388A (zh) * 2018-01-10 2019-07-16 刘昭志 改进的工具组接头装置
DE102018113481A1 (de) 2018-06-06 2019-12-12 Wera Werkzeuge Gmbh Schraubendreher mit Quergriff
US10836020B2 (en) * 2018-11-01 2020-11-17 Snap-On Incorporated Tilt compensated torque-angle wrench
USD893272S1 (en) * 2018-12-12 2020-08-18 Hong Ann Tool Industries Co., Ltd. Ratchet wrench handle
USD893964S1 (en) * 2019-03-29 2020-08-25 Hong Ann Tool Industries Co., Ltd. Flex-Head tool
USD959942S1 (en) * 2020-05-21 2022-08-09 Yi-Fu Chen Wrench adapter
TWI779540B (zh) * 2021-03-30 2022-10-01 穩陞工業股份有限公司 扳手結構
DE102022100891A1 (de) 2022-01-17 2023-07-20 Wera Werkzeuge Gmbh Schraubwerkzeug für Nüsse und Bits

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Also Published As

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CA2677166C (fr) 2014-12-02
CA2677166A1 (fr) 2008-08-07
AU2008209883B2 (en) 2013-04-18
HK1133620A1 (en) 2010-04-01
DE102007049304A1 (de) 2008-08-07
DE102007049304B4 (de) 2020-09-03
CN101657302B (zh) 2012-12-19
JP2010517793A (ja) 2010-05-27
US20100058896A1 (en) 2010-03-11
EP2134513A2 (fr) 2009-12-23
CN101657302A (zh) 2010-02-24
US7878091B2 (en) 2011-02-01
EP2134513B1 (fr) 2015-11-11
WO2008092717A2 (fr) 2008-08-07
AU2008209883A1 (en) 2008-08-07
EP2135714A3 (fr) 2010-09-01
EP2135714B1 (fr) 2015-07-01
JP5202542B2 (ja) 2013-06-05
WO2008092717A3 (fr) 2009-06-04

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