EP2135714A2 - Screwdriving tool with free wheel gear - Google Patents

Screwdriving tool with free wheel gear 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
position
screwing tool
characterized
gear
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)
French (fr)
Other versions
EP2135714A3 (en
EP2135714B1 (en
Inventor
André Müller
Michael Abel
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
Original Assignee
Wera Werk Hermann Werner GmbH and Co
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 to DE102007004987 priority Critical
Priority to DE102007049304A priority patent/DE102007049304A1/en
Application filed by Wera Werk Hermann Werner GmbH and Co filed Critical Wera Werk Hermann Werner GmbH and Co
Priority to EP08701351.2A priority patent/EP2134513B1/en
Publication of EP2135714A2 publication Critical patent/EP2135714A2/en
Publication of EP2135714A3 publication Critical patent/EP2135714A3/en
Application granted granted Critical
Publication of EP2135714B1 publication Critical patent/EP2135714B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25GHANDLES FOR HAND IMPLEMENTS
    • B25G1/00Handle constructions
    • B25G1/06Handle constructions reversible or adjustable for position
    • B25G1/063Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/46Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007Connections or joints between tool parts
    • B25B23/0021Prolongations interposed between handle and tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007Connections or joints between tool parts
    • B25B23/0028Angular adjustment means between tool head and handle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25GHANDLES FOR HAND IMPLEMENTS
    • B25G1/00Handle constructions
    • B25G1/06Handle constructions reversible or adjustable for position
    • B25G1/063Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners
    • B25G1/066Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners the grip itself being angularly adjustable

Abstract

The socket wrench has a drive arm (203) and a gear head (205) in a housing with a freewheel or ratchet drive action. The wrench has two diametrically opposed inertia masses (225) at the arm and a rotating sleeve (226) is on the arm.

Description

  • The invention relates to a screwing tool according to the preamble of the main claim.
  • From the US 6,634,262 a wrench with a gear head and a drive arm is known, 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 Schnellschraubstellung in which the drive arm in the driven axis, in a Kraftschraubstellung 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.
  • From the DE 21 16 286 and DE 20 2006 007 090 U1 screwing tools are known in which a ratchet gear has a drive square, the ratchet gear is arranged in a gear head and the gear head is pivotally inserted in a fork opening of a drive arm.
  • From the DE 20 2004 000 843 a wrench is known in which the gear head is located in a bearing fork of the drive arm. One on the drive arm arranged handle can be moved along the drive arm. A similar screwing tool describes the US 2005/0166718 A1 ,
  • From the DE 499 786 is a tool with a pivoting lever known. The lever is located in a side recess of a handle and can be pivoted 90 ° about a pivot axis.
  • From the FR 2,865,677 is also a screwing known. 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.
  • From the US 6,976,411 is a screwing known in which sits on a drive arm, a pivoting handle which protrudes at right angles from the output axis of rotation.
  • From the US 4,799,407 a screwing tool is known in which also a right-angle projecting handle is provided to increase the applied torque to an output coupling. For this purpose also owns from the US 3,475,999 Her known screwdriver a pivotable by 90 ° handle.
  • 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 Kraftschraubstellung.
  • In the from the US 1,559,097 ago known screwing tool is located in a handle recess a pivoting handle, which of a Schnellschraubstellung in a Kraftschraubstellung can be pivoted. A similar solution describes the US 3,342,229 ,
  • 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.
  • For this purpose, it is provided that the latching means is arranged in the drive arm, displaceable in its direction of extension locking pin. The locking pin can einliegen 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. For this purpose, 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. Preferably, 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. With the bearing pin, 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. In the middle between the two prongs, 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. In a first pivot position, which corresponds to a Schnellschraubposition, the contour axis of the drive arm is located in the output axis of rotation. On the end of the drive arm is a screwdriver handle. If this is rotated about its contour axis, the output square of the gear head is rotated about its output axis of rotation. By retracting the slide button in a release position of the locking pin emerges from the arranged at the apex of the dome latching recess. The gear head can now be pivoted about the pivot axis, for example. In an intermediate position in which the output rotational axis occupies a 45 ° position to the contour axis of the drive arm. The gear head can also be further pivoted to a 90 ° position in which the drive arm is in a Kraftschraubstellung 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. This displacement takes place against the restoring force of a spring and for the displacement of a release slide. The release slide is part of a captive device for a nut or the like, which can be plugged onto the output square. In the Schnellschraubstellung the dome can be relocated using one of the two sliding buttons. For this purpose, 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. In the bondage position, the detent ball lies in front of a wall of the release slide. In the release position, the detent ball can escape radially inwards. For this purpose, the release slider has a pocket. In the return displacement of the release slider in his bondage position, 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. A radially outer portion of the dome may form a corrugation. This section is accessible in any pivot position of the gear head, so that the directional locking can be switched in each pivot position. The fork tines, which form the gear head bearing mount, nestle with their inner facing surfaces facing each other flat against the convex outer surface of the gear housing. For this purpose, the inner edges of the forks are designed dome-shaped. During installation, the gear head can be bent into this ball bearing. The forks are rigidly assigned to each other. This allows the application of maximum torque on the output square.
  • Embodiments of the invention are explained below with reference to accompanying drawings. Show it:
  • Fig. 1
    A first embodiment of a screwing tool in a plan view in a Schnellschraubstellung,
    Fig. 2
    a side view,
    Fig. 3
    a section along the line III - III in Fig. 1 .
    Fig. 4
    a section of the section according to Fig. 3 with a locking pin retracted into a release position,
    Fig. 5
    a representation according to Fig. 4 with displaced pin in the opposite direction,
    Fig. 6
    a representation according to Fig. 3 in the Kraftschraubstellung,
    Fig. 7
    an intermediate position between Schnellschraubstellung and force position in a representation according to Fig. 4 .
    Fig. 8
    a section along the line VIII - VIII in Fig. 1 .
    Fig. 9
    A second embodiment of the invention in plan view with pivoted in Kraftschraubstellung ratchet head,
    Fig. 10
    a side view of the embodiment according to Fig. 9 .
    Fig. 11
    a section along the line XI - XI in Fig. 9 .
    Fig. 12
    a partial view according to Fig. 11 in an intermediate pivoting position of the ratchet head and
    Fig. 13
    a representation according to Fig. 12 with the ratchet head swiveled into the quick screw position.
  • The Figures 1 - 8 show a ratchet wrench with pivoting gear head 205. The gear head 205 has a four output square 204, which may be ¼ inch, ⅜ inch or ½ inch. The output square 204 defines an output rotational axis 201. The output square 204 may be inserted into a square opening of a nut or other torque transmitting tool. From one of the four walls of the output four-square 204 protrudes a detent ball 220. The detent ball 220 is supported in their in the Fig. 3 shown Fesselungsstellung on a wall portion of a release slide 221, which is located within the output square 204. The release slide 221 is slidably mounted in an axial cavity of the output drive quadrant 204.
  • By an axial displacement of the release slide 221 from the in Fig. 3 shown bondage position in an in Fig. 5 shown release position moves a niche of the release slide 221 in a rearward position to the detent ball 220 so that it can dip radially into the window by being mounted in the wall of the output square 204. The axial displacement of the release slide 221 takes place against the restoring force of the compression spring 224. Relocates the compression spring 224 the release slide 221 back into the bondage position, the detent ball 220 is displaced by a sloping edge of the niche again radially outwards, so that they on the output square 204th can tie up the attached nut.
  • 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. Along with this axial displacement of the switching dome 219, 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 Axialbewegungsfreilauf.
  • 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. With the bearing pin 223 of the gear head 205 is pivotally mounted in a mounting fork of a drive arm 3. 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.
  • In the apex region of the mounting fork, ie in the region of its root, there is a bore which extends axially to the contour axis of the drive arm 203. A locking pin 206 is inserted in this bore. Its end section protruding from the bore into the fork clearance can lie in one of the locking recesses 209, 210 or 211. The gear head 205 assumes different angular positions. In the in Fig. 6 In this operating position, the extension direction of the drive arm 203 extends transversely to the direction of extension of the driven axis of rotation 201. With the handle 207 seated on the end of the drive arm 203, a high torque can now be applied to the drive shaft 207 Output square 204 are applied. By a pivoting movement of the drive arm 203 of the output square 204 is further rotated stepwise in one direction.
  • In the in Fig. 7 shown position, the end of the locking pin 206 in the latching opening 211. In this position, the output rotational axis 201 extends approximately at a 75 ° angle to the extension direction of the drive arm 203rd
  • The immediately adjacent to the root of the mounting fork portion of the drive arm 203 is widened. In 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. Along with this, 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. Along with this, 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. According to 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. In the Schnellschraubstellung 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.
  • Between the handle 207 and the widened portion which carries the slide button 213, 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 Schnellschraubstellung 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. 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".
  • That in the 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. As a result of this radially outer mass accumulation, which forms the flywheel mass 225, 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.
  • The gear head 205 has two diametrically opposite, the transmission housing 212 associated radial extensions 227. In the Kraftschraubstellung engages each one of these radial extensions 227 in a formmentsprechende recess of the fork base between the two forks 217 a. Each radial extension 227 has two driving flanks 228. The radial recess 227, which is inserted in the opening of the fork base, rests with its two driving flanks 228 against driver stages 229, which are formed by side walls of the recess of the fork base. As a result, a larger torque can be transmitted to the gear head 205 in the Kraftschraubstellung. The two driver flanks 228 and the two driver stages 229 are preferably located on parallel planes.
  • Again FIG. 9 can be seen, 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. In the in Fig. 9 shown Kraftschraubstellung 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. For fast rotation of the output rotation axis 201, the handle 207 need not be included. This can pivot freely when turning fast. For this purpose, it proves to be advantageous if the center of gravity of the entire screwing tool is in the driven-side third of the drive arm 203. Preferably, the center of gravity is in the region between head 225 and rotatable sleeve 226th
  • It proves to be advantageous that 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 Kraftschraubstellung is minimized, that is below a maximum value.
  • In the embodiments, 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.
  • In the exemplary embodiments, the flywheel masses 225 are each firmly connected to the drive arm 203. However, 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.

Claims (8)

  1. Wrench with a gear head (205) and a drive arm (203), wherein the gear head (205) forms a gear housing (212) in which a freewheel or ratchet gear (202) is arranged with a driven rotation axis (201), wherein a front side of the Gear head (205) has an output coupling (204), in particular in the form of a polygon, and wherein the drive arm (203) about a substantially transverse to the output axis of rotation (201) extending pivot axis (208) of a Schnellschraubstellung in which the drive arm (203) in the output rotational axis (201) is pivotable into a Kraftschraubstellung in which the drive arm (203) extends substantially transversely to the output axis of rotation (201), and in the two pivot positions by means of latching means (206) is fixable, wherein the latching means (206 ) by means of the drive arm (203) associated actuating member (213) is displaceable from a detent position to a release position, wherein the latching center l in the drive arm (203) arranged, in its direction of extent displaceable locking pin (206), characterized in that the output coupling (204) has a captive means (220, 221) for a thereto engageable nut or the like, by actuating the actuating member ( 213) can be brought from a bondage position into a release position.
  2. Screwing tool according to one of the preceding claims, characterized in that the actuating member in the extension direction of the drive arm (203) against the restoring force of a spring (214) displaceable slide button (213).
  3. Screwing tool according to one of the preceding claims, characterized in that the transmission housing (212) is a substantially circular outer wall which is mounted at two diametrically opposite locations between ends of prongs (217) of a gear housing comprehensive mounting fork of the drive arm (203).
  4. Screwing tool according to one of the preceding claims, characterized in that the actuating member has two opposite sliding buttons (213) which are connected via connecting webs (218) with the locking pin (206) lying between them.
  5. Screwing tool according to one of the preceding claims, characterized in that the locking pin (206) and the actuating member (213) is held floating between two springs (214, 215) in a neutral position.
  6. Screwing tool according to one of the preceding claims, characterized by one of the drive coupling (204) opposite dome (219), in particular a in each pivot position of the drive arm (203) accessible direction switch for the freewheel or ratchet mechanism (202) is formed.
  7. Screwing tool according to one of the preceding claims, characterized in that the captive device (220, 221) by axial pressure on the dome (219) can be brought into the release position.
  8. Screwing tool according to one of the preceding claims, characterized in that the spherical peripheral surface of the gear head (205) in planar contact with the dome-shaped inner walls of the forks (217) and from the gear housing (212) in each case in diametrically opposite directions protruding radial extensions (227), Mitnehmerflanken (228) are formed, which rest on associated Mitnehmerstufen (229) of the forks (217).
EP09172019.3A 2007-02-01 2008-01-09 Screwdriving tool with free wheel gear Active EP2135714B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102007004987 2007-02-01
DE102007049304A DE102007049304A1 (en) 2007-02-01 2007-10-15 Wrench with freewheel gear
EP08701351.2A EP2134513B1 (en) 2007-02-01 2008-01-09 Screwdriving tool with free wheel gear

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP08701351.2 Division 2008-01-09
EP08701351.2A Division-Into EP2134513B1 (en) 2007-02-01 2008-01-09 Screwdriving tool with free wheel gear
EP08701351.2A Division EP2134513B1 (en) 2007-02-01 2008-01-09 Screwdriving tool with free wheel gear

Publications (3)

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

Family

ID=39587455

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08701351.2A Active EP2134513B1 (en) 2007-02-01 2008-01-09 Screwdriving tool with free wheel gear
EP09172019.3A Active EP2135714B1 (en) 2007-02-01 2008-01-09 Screwdriving tool with free wheel gear

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08701351.2A Active EP2134513B1 (en) 2007-02-01 2008-01-09 Screwdriving tool with free wheel gear

Country Status (9)

Country Link
US (1) US7878091B2 (en)
EP (2) EP2134513B1 (en)
JP (1) JP5202542B2 (en)
CN (1) CN101657302B (en)
AU (1) AU2008209883B2 (en)
CA (1) CA2677166C (en)
DE (1) DE102007049304A1 (en)
HK (1) HK1133620A1 (en)
WO (1) WO2008092717A2 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055558B4 (en) 2008-12-19 2020-02-20 Wera Werkzeuge Gmbh Ratchet wrench
DE102008055581A1 (en) 2008-12-23 2010-06-24 Wera Werk Hermann Werner Gmbh & Co. Kg Screwing tool has output head which defines output rotational axis and drive arm which protrudes from output head into main working position in working angle of particularly ninety degree to output rotational axis
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DE499786C (en) 1928-10-26 1930-06-13 Wilhelm Suelzle Tool with pivoting lever
US3342229A (en) 1965-10-21 1967-09-19 James Igor Ratchet handle screwdriver
US3475999A (en) 1967-12-20 1969-11-04 William M Roberts Racheting handtool mechanism
DE2116286A1 (en) 1970-04-03 1971-12-02
US4054067A (en) 1975-09-15 1977-10-18 The Raymond Lee Organization, Inc. Compact screwdriver bit
US4541310A (en) 1984-08-02 1985-09-17 Lindenberger Paul H Multiple-use ratchet tool
US4799407A (en) 1986-08-26 1989-01-24 Rubicon Co., Ltd. Ratchet screwdriver
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US20050166718A1 (en) 2004-02-03 2005-08-04 Pi-Hsia Chang Wrench having a ratchet head able to vertically and horizontally rotate for 360 degrees
FR2865677A1 (en) 2004-02-04 2005-08-05 Baptiste Laurent Jean Hand tool e.g. screw driver, torque providing device for tightening/loosening screw, has handle with movable part that is made parallel to fixed part to form normal handle or perpendicular to fixed part to reduce exerted forces
US6976411B1 (en) 2004-10-25 2005-12-20 Hsiu-E Yu Extension tool having anchoring device
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EP2134513B1 (en) 2015-11-11
EP2135714B1 (en) 2015-07-01
DE102007049304A1 (en) 2008-08-07
AU2008209883A1 (en) 2008-08-07
WO2008092717A2 (en) 2008-08-07
WO2008092717A3 (en) 2009-06-04
EP2134513A2 (en) 2009-12-23
US7878091B2 (en) 2011-02-01
JP5202542B2 (en) 2013-06-05
CN101657302A (en) 2010-02-24
JP2010517793A (en) 2010-05-27
CN101657302B (en) 2012-12-19
HK1133620A1 (en) 2016-05-13
EP2135714A3 (en) 2010-09-01
CA2677166A1 (en) 2008-08-07
CA2677166C (en) 2014-12-02
AU2008209883B2 (en) 2013-04-18
US20100058896A1 (en) 2010-03-11

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