EP0433284B1 - Einrastvorrichtung für den antrieb eines steckschrauben-schlüssels - Google Patents

Einrastvorrichtung für den antrieb eines steckschrauben-schlüssels Download PDF

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Publication number
EP0433284B1
EP0433284B1 EP88909489A EP88909489A EP0433284B1 EP 0433284 B1 EP0433284 B1 EP 0433284B1 EP 88909489 A EP88909489 A EP 88909489A EP 88909489 A EP88909489 A EP 88909489A EP 0433284 B1 EP0433284 B1 EP 0433284B1
Authority
EP
European Patent Office
Prior art keywords
control bar
shank
extension
socket
locking
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
EP88909489A
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English (en)
French (fr)
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EP0433284A1 (de
EP0433284A4 (en
Inventor
Michael Nickipuck
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Qualicorp Ltd
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Qualicorp Ltd
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Filing date
Publication date
Application filed by Qualicorp Ltd filed Critical Qualicorp Ltd
Priority to AT88909489T priority Critical patent/ATE123682T1/de
Priority claimed from PCT/US1988/003057 external-priority patent/WO1990002634A1/en
Publication of EP0433284A1 publication Critical patent/EP0433284A1/de
Publication of EP0433284A4 publication Critical patent/EP0433284A4/en
Application granted granted Critical
Publication of EP0433284B1 publication Critical patent/EP0433284B1/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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool

Definitions

  • Socket wrenches incorporating ratchet drives and standard sockets for driving threaded fasteners including most commonly hexagonal nuts and bolt heads are commonly used in the mechanic's field.
  • extension drives are utilized to transmit the force from the ratchet to the socket.
  • a push button release for a ratchet socket drive is a push button release for a ratchet socket drive.
  • This mechanism is unlike the invention in that it requires relatively complicated machining, is relatively difficult to maintain and subject to malfunction from dirt or wear, and is unsuitable for use on extensions because of the utilization of a central axial bore and pushbutton.
  • this type of mechanism involves application of both a downward pressure on a pushbutton plunger while requiring the resistance against which this force is applied as well as the simultaneous movement of the socket in the same direction as the pushbutton and in the direction opposite the resistance, which is an awkward motion for a mechanic in tight spaces.
  • the pushbutton ratchet release also requires that the mechanism be machined out of larger pieces for the same strength as non-machined parts, rendering it frequently difficult to utilize the ratchet and socket combination alone in tight spaces (US-A-3,762,245).
  • a socket wrench drive extension comprising: an elongate main shank including a first shank portion at the rear end for receiving rotative motion and a second shank portion at the forward end for transmitting the rotative motion to a releasably connected socket member, a movable control bar arranged in an axially extending channel in the shank and slidably moveable between a forward locking position and a rearward release position by means of a movable sleeve arranged about the main shank, said control bar being urged towards the forward locking position by a spring acting on the sleeve, a transverse aperture connecting the bottom of the channel radially inwardly of the control bar with the diametrically opposite side of the first shank portion and accommodating locking means in the form of two retainer balls, said balls and said aperture being so dimensioned that the balls at all times project from the ends of the aperture, wherein the control bar includes a radially outwardly directed surface
  • the present invention is characterised in that the radially inwardly directed surface of the control bar includes a forward bevelled section adjacent the locking means and a rear section with a notch and a radially inwardly projecting latch element, the bevelled section having such an axial extent that it contacts the adjacent retainer ball both in the locking and the release position of the control bar, the bottom of the channel includes a recess near its rear end and adjacent said latch element of the control bar, and a spring is interposed between the retainer balls to urge these apart thereby simultaneously exerting a radially outwardly directed force on the bevelled section of the control bar to impart thereto a tilting tendency, so that when the latch element of the control bar engages the recess of the channel the control bar undergoes a limited tilting movement, thereby latching the control bar in the release position.
  • the present invention is characterised in that the radially inwardly directed surface of the control bar includes a forward bevelled section adjacent the locking means the bevelled section having such an axial extent that it contacts the adjacent retainer ball both in the locking and the release position of the control bar, a spring is interposed between the retainer balls to urge these apart thereby simultaneously exerting a radially outwardly directed force on the bevelled section of the control bar to impart thereto a tilting tendency, and the radially outwardly directed forward end of the control bar has a forwardly open recess comprising a first surface substantially parallel to the axis of the control bar and a second surface perpendicular to the first surface and forming a rear end shoulder of the recess, wherein the second shoulder surface is adapted to engage the end surface of the socket member when the wrench extension is inserted into said socket thereby sliding the control bar rearwardly towards the release position.
  • An additional embodiment utilizes the device herein described with modifications so as to provide for a locking and release action at both the driven end of a socket wrench drive shank and the driving end.
  • the sliding collar has been rearwardly extended and is of a dimension sufficient to be slidably carried relative to the outside diameter of the driven portion of the placement of a fixedly mounted pin in the surface of the shank, said pin intersecting a generally L-shaped slot permits limited forward and rearward travel and limited rotational travel.
  • a socket wrench drive extension is designed for use in conjunction with a ratchet drive handle and standard sockets for driving threaded fasteners.
  • the extension incorporates a longitudinal control bar channel machined in one phase of the square drive portion of the socket and extending past the shoulder separating the driven portion from the extension portion of the device.
  • a control bar is incorporated which is slidably mounted within the machined control bar channel, moving longitudinally therein. The lower end of the control bar is machined in this embodiment to an angle of approximately 15-30° bevelled to the lips.
  • the further modification of the sleeve to encompass this embodiment includes the placement of one or more grooves or recesses in the inner surface of the sleeve in the section where it rearwardly extends over the surface of the driven end of the shank. These recesses permit the retraction of a retainer ball placed in said driven end.
  • the recesses are so oriented such that the rotation and rearward movement of the sleeve results in the exertion of inward pressure on the driven end retainer ball or balls.
  • the device can function as an adaptor, rather than a mere quick release provision on the end of an extension of a fixed length.
  • the quick release and locking features may be utilized in complete compatibility with a mechanic's existing set of driving tools, particularly with extensions of varied lengths.
  • the driven end locking feature provides a positive locking action thus avoiding unwanted release of the device itself or the tools attached to the driving end of the device.
  • the socket wrench drive extensions shown in Figures 1 to 9 are known from US-A-4,480,511 and are not embodiments of the present invention. Preferred embodiments of the present invention are shown in Figures 21, 22, 25 and 26. The remaining socket wrench drive extensions shown in Figures 10 to 20, 23 and 24 contain features which can be applied to preferred embodiments of the present invention.
  • Fig. 1 there is illustrated a socket wrench drive extension of the prior art having a driven portion 11, a shank 9, and a driving portion 12.
  • the socket wrench drive extension is designed to be driven by the square drive portion of a standard ratchet handle mating with the driven portion 11.
  • the driving portion 12 of the socket wrench drive extension mates with and drives a standard socket 21.
  • control bar channel 10 Machined in the surface of the shank 9 is a control bar channel 10 which extends along a substantial portion of the shank 9 through the shoulder 27 between the shank 9, which is cylindrical in cross-section, and the driving portion 12, which is square in cross-section.
  • a control bar 14 includes an outer positive locking and centering portion 13 at its lower end.
  • the sleeve engagement spur 16 is an integral part of the control bar 14 which is located equidistant from the ends and serves to engage the control bar with the sleeve 15.
  • the sleeve 15 includes internally machined control bar engagement spurs 28 which transmit motion from the sleeve 15 to control bar 14.
  • a helical spring 17 Internal of the sleeve is a helical spring 17 which bears on the upper portion of the control bar engagement means 28 at the lower end of the spring 17 while being retained by a C-clip 18 fitting a groove 30 machined in the circumference of the drive extension shank 9.
  • the helical spring 17 is shown in its compressed position in Fig. 1 as the sleeve 15 is pulled axially toward the driven end of the extension shaft 11 and away from the driving end of the extension shaft 12 through a force exerted directionally upward by the user against the grippable portion 29 machined into the exterior of the sleeve.
  • the rearward displacement of the sleeve and connected control bar accomplished the operation as demonstrated in greater detail in Fig. 3 and 4.
  • the control bar bevel 25 then releases the ball detent mechanism thereby releasing the standard fastener driving socket 21.
  • Fig. 2 is a perspective view which shows the prior art arrangement in position for use with the sleeve 15 released by the user and forced downward by the spring 17.
  • the sleeve 15 As the sleeve 15 is forced downward it in turn forces the control bar 14 downward through the engagement spurs 16 and 28 which displaces the locking mechanism outward and retains the socket 21 in a locked position.
  • the maximum extension of the control mechanism including the sleeve 15, spring 17 and control bar sleeve engagement spur 16 is restricted by a C-clip or circlip fitted in a circumferential groove 30 machined in the shank 9 of the extension drive shaft.
  • Figs. 10-13 improvements to the prior art arrangements such as other fastening means being substituted for C-clips are suggested.
  • Fig. 3 is a fragmentary cross-sectional view of a prior art drive extension showing the lower portion of the drive extension shank 9, the square driving portion of the socket wrench drive extension shaft 12.
  • the entire control mechanism, the engagement spurs 16 and 28 located on the control bar and sleeve respectively, control bar 14, spring 17, and C-clips 18 are shown in this sectional view.
  • Fig. 3 Also shown in Fig. 3 is the lower locking portion of the control bar 14 which comprises the outer positive locking and centering portion of the control bar 13, as well as the bevelled release surface 25 of the control bar 14.
  • the transverse bore 19 positioned in such a way as to intersect the control bar channel 10.
  • This transverse bore 19 is knurled or otherwise machined at either end to decrease the diameter of the bore so as to retain the locking ball bearing 24, and the transmission shaft 23 through which a locking force can be transmitted to the retainer ball 22.
  • Fig. 3 shows the arrangement of Fig. 1 in the spring-compressed position, which permits the retainer mechanisms ball bearing 22 and 24, and force transmission shaft 23 free to be displaced radially through the transverse bore toward the control bar channel the permitting the removal of the socket.
  • the C-clips 18 further serve to provide radial pressure against the outer surface of the control bar 14 to prevent its displacement outward, as does the inner wall of the sleeve 15.
  • Fig. 4 is fragmentary sectional view showing the features as described in Fig. 3 as well as the drive socket 21 which includes a recess 26 against which the retainer ball bearing 22 is forced through operation of the control bar.
  • Fig. 4 shows the spring 17 in its extended configuration forcing the sleeve 15 downward through operation of the engagement spurs 28 and 16 to its maximum extension as restricted by the C-clips 18.
  • the control bar 14 is also extended downward to its maximum operating extension point.
  • the control bar downward bevelled release surface 25 of the control bar applies constant force across the ball bearings 24 which through the force transmission shaft 23 extends the retainer ball 22 progressively farther outward on the opposite face the square socket drive portion 12. It is important to have the angle of the bevelled surface 25 and the narrowest portion of proper dimensions so as to displace the locking mechanism far enough to permit the locking of standard sockets by using a dimension appropriate given the standard dimension of the socket locking depression 26.
  • the flat interface of the control bar 14 prevents further transverse movement of the locking mechanism 22, 23 and 24 by virtue of the fact that the force is acting approximately 90 degrees in relationship to the locking surface of the control bar 14.
  • Fig. 5 is a perspective exploded view of a prior art drive extension showing the parts separately in relation to each other.
  • Fig. 6 is a perspective view of an alternative extension known to the art in which the sleeve 15 is non-rotatably mounted relative to the drive shaft of a power driven socket wrench 32.
  • the sleeve itself is mounted in a rotating bearing 33 through which the downward or rearward force is transmitted through a mechanism 35 pivotally mounted on the casing of the power driven socket wrench, which mechanism utilizes a semi-circular yoke 36 around the drive shaft and sleeve.
  • the exertion of force on the release lever 34 is transmitted through the bearing to the sleeve, which in turn transmits the force through a mechanism as described in Figs. 1-5, which provides a ready and quick means of releasing said sockets.
  • Fig. 7 is a fragmentary sectional view of a known extension in which the locking ball bearing 24 bears directly on the retainer ball 25 dispensing with the force transmission shaft.
  • Fig. 8 is a fragmentary sectional view of another known extension in which multiple ball bearings 37 are utilized to transmit force from the control bar to the retainer ball.
  • Fig. 9 is a fragmentary sectional view in which a cylindrical detent 38 is utilized, extending completely through the transverse bore.
  • Fig. 10 constitutes a perspective view of an extension having a double locking configuration.
  • Apparent in Fig. 10 are the common features including the sleeve 29 and control bar 14.
  • the sleeve is rearwardly extended over the driven end of the shank. The rearward travel is permitted by and limited by a substantially L-shaped slot 42 machined through the surface of the sleeve 29. Retention of the sleeve is accomplished through the use of a pin 43, placed within the slot 42, and fixedly mounted in the shank.
  • Fig. 11 is a fragmentary sectional view of the device of Fig. 10 in its released configuration.
  • the interior of the rearward extension of the sleeve 29 is provided with a recess or recesses 40, into which the driven end locking ball 41 is carried, and permitted to retract in the release configuration. Further apparent is the locking slot 42 and pin 43.
  • the operation of the driving end section, utilizing the detent 38, engaging a drive socket 21, acted upon by the control bar 14 is substantially the same as the other known extensions.
  • Fig. 12 is a fragmentary sectional view of a double locking extension in the locked configuration.
  • the detent 38 engages the recess in the socket 21.
  • the downward or inward pressure of the sleeve 29 is exerted upon the driven end detent 41, which detent itself mates with the standard detent of the driving member 45. Because the detent in the driving member 45 is spring loaded, it can be compressed below the driving surface by the locking detent 41.
  • Fig. 13 illustrates an exploded view of the double locking extension showing the components in a disassembled configuration. Assembly and disassembly is generally accomplished through removal of the retainer pin 43.
  • Fig. 14A illustrates a socket locking extension with a driven portion 11, shank 9 and square driving portion 12.
  • the driving portion 12 fits into socket 21 for imparting rotational movement.
  • the shank 9 terminates at a shoulder 27 at the end of the shank 9.
  • a slot or channel 10 is formed in the surface of the shank and extends into one face or wall of the driving portion 12.
  • a control bar 14 which has an outer surface 13 is carried in the control bar channel.
  • a raised portion or spur 16 extends outward from the outer surface 13 and fits into sleeve 15.
  • the sleeve has internal annular engagement elements or flanges. In this extension these constitute an inner annular ring 28 and terminal annular ring 29 of the sleeve defining an annular groove 30 between them. This extension does not foreclose the use of other methods of engagement.
  • the forward motion of the sleeve toward the driving end is limited by a circular clip 18 as in prior art arrangements. Rearward movement, however, is limited by a limiting collar 52 which engages the rear edge of the sleeve.
  • the sleeve may be covered with a friction increasing surface pattern such as knurling 29 or other arrangements making the sleeve easy to grip and retract.
  • Fig. 15 is sectional view of this extension.
  • the socket 21 has a plurality of faces 31 which engage the driving portion 12. Apparent in this view is a transverse bore 19 in which retainer balls 22 and 24 are carried. The clearances between the retainer balls and bore are such that a slight off center condition results in a camming action.
  • the control bar 14 carried in the control bar channel 10 extends forward or toward the distal end 95 (to the left).
  • the outer surface 13 of the control bar engages the socket surface 31 when in the locked position.
  • the inner surface 50 of the control bar slides on the floor 60 of the channel 10.
  • the inner surface 50 merges into a bevel 25. It has been found in development that a bevel angle of approximately 10 degrees is preferable in this extension.
  • the tip of the control bar is also bevelled 51, adjacent to the outer surface 13.
  • sleeve-control bar engagement elements 28 and 29 which engage the outwardly extending spur 16 of the control bar permitting retraction and imparting a forward (leftward) force through the action of a compressed coil spring 17.
  • forward and radially outward motion is limited by circular clip 18 snapped into groove 96 in the shank although other appropriate structures may be used.
  • the spring 17 is compressed between the engagement element 28 of the sleeve 15 and an opposing edge of the limiting collar 52.
  • the limiting collar itself is carried on the shank and has an inner surface 55 carried on a reduced diameter shank surface 56.
  • the end of the limiting collar 57 engages a shoulder 58 formed at the intersection of the reduced diameter surface 56 and outer surface of the shank.
  • the limiting collar further incorporates an outwardly extending shoulder 54 formed around its circumference which engages the rearward end of the sleeve 15 at the rearward most extension of travel. This in turn retracts the control bar 14 and the retainer balls 22 and 24 are permitted by the movement of the bevel 25 to disengage from the socket face 31.
  • the distance of travel permitted is less than the distance between the tip of the control bar and the point where the bevel 25 merges into the inner control bar surface 50.
  • the retainer ball 22 continues to engage the bevel surface 25. This may be compared to US-A-4,480,511 where the forward travel of the control bar and rearward travel of the control bar was such that the flat surface engaged the retainer ball.
  • a lateral force is transferred to the control bar bevel or wedging edge 25 and tends to impart a forward (leftward) motion to the control bar as shown by the arrow.
  • This movement of the bar because of the bevel arrangement, tightens the engagement of the retainer ball 24 with the control bar surface.
  • the opposing surface 31 develops a tight frictional fit resisting the pulling of the socket off the tool in its locked position.
  • sockets whose interior walls do not have the recesses designed to engage retainer balls 24.
  • this provides increased utility as sockets may become worn, sockets may be produced with recesses on none of their interior walls 31 or sockets may be produced with recesses or equivalent structures on less than all of the walls as in the case of impact sockets.
  • a retainer ball expected to engage a recess would only engage the socket if a transverse hole extending from the outer surface of the socket through to the interior surface of socket is lined up with the retainer ball. This becomes cumbersome in the field and the present improved configuration permits the locking of said sockets even when flat walls are engaged by the retainer ball 24 and outer control bar surface 13.
  • Fig. 19 corresponds to Fig. 15 with the addition of a helical spring 61 interposed between the retainer balls 24 and 22. While in the released position the retainer balls are substantially free to move inward and outward within limits.
  • a reduced diameter 62 of the transverse bore limits outward movement in a direction opposite the control bar and movement toward the control bar is limited either by the control bar itself or by reducing the diameter by machining flanges or tapering the bottom of the transverse bore during drilling and before machining the control bar channel. This loose carriage of the retainer balls provides substantially negligible resistance to the forward movement of the socket.
  • Fig. 20 it is shown that the placement of the spring exerts an outward force on the retainer balls. This outward force provides for increased resistance against the wall of or recess in the wall of the socket, thereby reducing the likelihood of the socket falling off the tool when the control bar is retracted in the released position, either intentionally or accidently.
  • Fig. 21 shows a sectional view of a preferred embodiment in accordance with the first aspect of the present invention. This view is analogous to Fig. 15 and 17 which show the device in the locked position. It will be noted chat towards the rear (right) end of the control bar 14 the control bar bottom surface 50 has been notched 65. Rearward (to the right) of the notch is a downwardly projecting latch element 66 terminating along an extended imaginary line from the control bar bottom surface 50. A second transverse bore 68, which may constitute a blind bore extending partially downward from the control bar channel floor 60, is shown.
  • Fig. 22 shows this preferred embodiment with the tool in the released position.
  • the spring 61 acting through retainer ball 22 exerts an upward force on the tip of the control bar.
  • This, and the placement of the recess 68 in the channel floor 60 permits the downward biasing of the rear end of the control bar and corresponding upward biasing of the tip of the control bar.
  • the downward biasing results in the engagement of the latch element 66 in the recess 68.
  • the mechanism is latched in the open position in this embodiment. This may be compared to other extensions where the spring 17 always returns the mechanism to the locked position thus requiring retraction both to remove and to place a socket on the driving end 12 of the tool.
  • Fig. 23 shows an alternative arrangement in which the securement portion of the tool is carried on a truncated body 80, of length limited to that necessary to carry the sleeve 15 and to provide for the stop limiting retraction of the sleeve.
  • This extension is adapted to receive the driving end 81 of a second shank in corresponding recess 82 in the truncated body. Operation of the retainer mechanism is otherwise unchanged from the alternative extensions previously discussed.
  • the recess for driving the truncated body by the second shank 83 is defined by walls that correspond to the driving portion 81 of the second shank 83.
  • the truncated body 80 is further attached to the second shank 83 in a semi-permanent manner through the insertion of a pin 84 in a hole 85 extending through one wall 86 of the truncated body's recess, through the driving portion 81 of the second shank 83 and through the opposing wall 87 of the driven recess of the truncated body.
  • This pin may be inserted and maintained in place by a compression fit thereby resulting in a unitary extension tool.
  • a spring loaded pin permits adaptation to power driven extensions.
  • Fig. 24 shows an alternative truncated body arrangement.
  • the pin 84 is carried in a hole 88 in the driving portion 81 of the second shank 83.
  • the pin 84 is of a rivet head or inverted "T" shaped section and the neck of the hole 85 is reduced in diameter to retain the pin.
  • a spring 89 forces the pin outward and this permits easier removal by depressing the pin 85 with a suitable implement such as a probe, punch or the like. This is considered a semi permanent affixation because of the retention of the pin and need for an implement to remove the truncated body 80.
  • Fig. 23 and 24 permits the use of dissimilar alloy metals in the truncated body and second shank, the use of differential treatment as by heat treating of the respective truncated body and second shank, and the repair of either the truncated body or the second shank without requiring replacement of both.
  • a further advantage is that production can be streamlined because of the previous mentioned material and heat treatment flexibility.
  • the truncated body and second shank arrangement permits adaptation of various length second shanks which may be more easily conformed to specific consumer needs.
  • Fig. 25 and Fig. 26 shows a preferred embodiment of an extension in accordance with the second aspect of the present invention, which provides semi automatic retraction.
  • the control bar 14 has a recess 101 placed in its tip.
  • This recess includes a face 102 substantially parallel to the axis of the control bar 14 and forms a shoulder 103 perpendicular thereto.
  • the shoulder is placed at such a position that as a socket is installed, the retainer balls are forced upward and the control bar tip is biased upward so that it engages the base of the socket.
  • the socket 21 moves rearward (to the right) to the point where there is sufficient clearance between the opposing walls 31 because of the reduced transverse dimension across the bevel 25 that the control bar 14 may move to the locked position.
  • the invention provides for the utilization of the locking and quick releasing feature as a supplement to the ratchet handle which may be made smaller yet stronger than the cumbersome quick release type ratchet handle.
  • the embodiments utilize the camming engagement of two retainer balls and a camming control bar to provide wedging between the bar and balls for effectively locking an associated socket. They also use a spring co-acting with the retainer balls so as to prevent loss of an associated socket upon accidental release of the locking sleeve.
  • One preferred embodiment utilizes a lock-back mechanism to increase the ease of placement of the socket on the tool.
  • Another uses a securement portion as a separate structure from an extension shank.
  • a further embodiment uses a notched control bar to provide for semi-automatic retraction.
  • An advantage in the use of a spring co-acting with retainer balls is that a degree of increased friction is imparted between the drive extension and the socket walls even in the released position.
  • An advantage to the lock-back mechanism and the notch control bar embodiment are that either provides a degree of semi-automatic action in the retraction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Claims (6)

  1. Steckschlüsselantriebsverlängerung, umfassend:
    einen länglichen Hauptschaft (9), der einen ersten Schaftteil (11) am hinteren Ende zur Aufnahme einer Drehbewegung und einen zweiten Schaftteil (12) am vorderen Ende zur Übertragung der Drehbewegung auf ein lösbar verbundenes Steckelement (21) umfaßt,
    eine bewegliche Regelschiene (14), die in einem axial verlaufenden Kanal (10) im Schaft angeordnet und gleitbeweglich zwischen einer vorderen Verriegelungsstellung und einer hinteren Freigabestellung vermittels einer beweglichen um den Hauptschaft (9) angeordneten Hülse (15) ist, wobei diese Regelschiene (14) gegen die vordere Regelstellung mittels einer auf die Hülse (15) wirkenden Feder beaufschlagt ist,
    eine Queröffnung (19), die den Boden des Kanals radial innerhalb der Regelschiene mit der diametral gegenüberliegenden Seite des ersten Schaftteils (12) verbindet und ein Verriegelungselement in Form von zwei Haltekugeln (22, 24) aufnimmt, wobei diese Kugeln und diese Öffnung so dimensioniert sind, daß die Kugeln immer von den Enden der Öffnung (19) vorstehen,
    wobei die Regelschiene (14) eine radial nach außen gerichtete Fläche (13), die so ausgelegt ist, daß sie eine Innenwand (31) des Steckelementes (21) erfaßt und eine radial nach innen gerichtete Fläche (50) umfaßt, die so ausgelegt ist, daß sie die benachbarte Haltekugel (22) erfaßt und über diesen Eingriff die andere Haltekugel (24) gegen eine diametral gegenüberliegende Innenwand (31) des Steckelementes (21) bewegt, wodurch ein Sperreingriff zwischen diesem Steckelement (21) und der Schlüsselantriebsverlängerung herbeigeführt wird,
    dadurch gekennzeichnet, daß
    die radial nach innen gerichtete Fläche (50) der Regelschiene (14) einen vorne schräg zulaufenden Abschnitt (25) benachbart den Verriegelungsmitteln (22, 24) sowie einen hinteren Abschnitt mit einer Kerbe (65) und ein radial vorstehendes Rastelement (66) aufweist, wobei der schräg zulaufende Abschnitt (25) eine solche Erstreckung hat, daß er die benachbarte Haltekugel (22) sowohl in Verriegelungs- wie in Freigabeposition der Regelschiene (14) kontaktiert,
    wobei der Boden des Kanals (10) eine Nut (68) nahe ihrem hinteren Ende und benachbart dem Rastelement (66) der Regelschiene (14) umfaßt und eine Feder (61) zwischen den Haltekugeln (22, 24) zwischengeschaltet ist, um diese voneinander wegzudrücken und hierdurch gleichzeitig eine radial nach außen gerichtete Kraft auf den abgeschrägten Abschnitt (25) der Regelschiene (24) auszuüben, um dieser eine Kipptendenz zu erteilen, so daß, wenn das Rastelement (66) der Regelschiene (14) die Nut (68) des Kanals (10) erfaßt, die Regelschiene (14) eine begrenzte Kippbewegung erfährt, wodurch die Regelschiene (14) in der Freigabeposition verriegelt wird.
  2. Steckschlüsselantriebsverlängerung, umfaßend:
    einen länglichen Hauptschaft (9), der einen ersten Schaftteil (11) am hinteren Ende zur Aufnahme der Drehbewegung und einen zweiten Schaftteil (12) am vorderen Ende zur Übertragung der Drehbewegung auf ein lösbar verbundenes Steckelement (21) einschließt,
    eine bewegliche Regelschiene (14), die in einem axial verlaufenden Kanal (10) im Schaft angeordnet und gleitbeweglich zwischen einer vorderen Verriegelungsposition und einer hinteren Freigabeposition mittels einer beweglichen um den Hauptschaft (9) angeordneten Hülse (15) ist, wobei die Regelschiene (14) gegen die vordere Verriegelungsposition vermittels einer auf die Hülse (15) wirkenden Feder (17) beaufschlagt ist,
    eine Queröffnung (19), die den Boden des Kanals (10) radial innerhalb der Regelschiene (14) mit der diametral gegenüberliegenden Seite des ersten Schaftteils (12) verbindet und ein kompensierendes oder aufnehmendes Verriegelungsmittel in Form von zwei Haltekugeln (22, 24), wobei die Kugeln und diese Öffnung so dimensioniert sind, daß die Kugeln immer von den Enden der Öffnung (19) vorstehen,
    wobei die Regelschiene (14) eine radial nach außen gerichtete Fläche (13) umfaßt, die so ausgelegt ist, daß sie eine Innenwand (31) des Steckelementes (21) und eine radial nach innen gerichtete Fläche (50) erfaßt, die so ausgelegt ist, daß sie die benachbarte Haltekugel (22) erfaßt und über diesen Eingriff die andere Haltekugel (24) gegen eine diametral gegenüberliegende Innenwand (31) des Steckelements (21) bewegt, wodurch ein Verriegelungseingriff zwischen diesem Steckelement (21) und dieser Steckantriebsverlängerung herbeigeführt wird,
    dadurch gekennzeichnet, daß
    die radial nach innen gerichtete Fläche (50) der Regelschiene (14) einen vorderen abgeschrägten Abschnitt (25) benachbart den Sperrmitteln (22, 24) einschließt, wobei der abgeschrägt zulaufende Abschnitt (25) eine solche axiale Verlängerung hat, daß er die benachbarte Haltekugel (22) in der Verriegelungs- sowie in der Freigabeposition der Regelschiene (14) kontaktiert,
    eine Feder (61) zwischen den Haltekugeln (22, 24) zwischengeschaltet ist, um diese auseinanderzudrücken, wodurch gleichzeitig eine radial nach außen gerichtete Kraft auf den schräg zu-laufenden Abschnitt (25) der Regelschiene (14) ausgeübt wird, um dieser eine Kipptendenz zu erteilen, und
    das radial nach außen gerichtete vordere Ende der Regelschiene (14) eine vordere offene Nut (101) hat, die eine erste Fläche (102) im wesentlichen parallel zur Achse der Regelschiene und eine zweite Fläche (103) senkrecht zur ersten Fläche hat und eine hintere Endschulter der Nut bildet, wobei die zweite Schulterfläche (103) so ausgelegt ist, daß sie die Endfläche des Steckelements (21) erfaßt, wenn die Schlüsselverlängerung in dieses Steckelement eingeführt ist, wodurch die Regelschiene (14) nach hinten gegen die Freigabeposition zum Gleiten gebracht wird.
  3. Verlängerung wie in Anspruch 1 oder 2 beansprucht, wobei ein zweites Schaftelement (83) halb-permanent an diesem ersten Schaftteil (11) befestigt ist, um diesem eine Drehbewegung zu erteilen.
  4. Verlängerung nach Anspruch 3, wobei dieses zweite Schaftelement (83) an diesem ersten Schaftteil (11) durch einen durch Zusammendrückung eingepaßten Stift (84), der sich hierzwischen erstreckt, befestigt ist.
  5. Verlängerung nach Anspruch 3, wobei dieses zweite Schaftelement (83) an diesem ersten Schaftteil (11) durch einen federbelasteten verschiebbaren hierzwischen sich erstreckenden Stift (84) befestigt ist.
  6. Verlängerung nach einem der vorhergehenden Ansprüche, wobei dieser Hauptschaft (9) einen sich seitlich hiervon erstreckenden Stift (43) hat, der durch einen Schlitz (42) in der beweglichen Hülse (15) vorsteht, wobei dieser Schlitz im wesentlichen L-förmig ist, derart, daß eine Drehung der Hülse bezüglich des Hauptschaftes (9), wenn die Regelschiene (14) sich in ihrer vorderen Verriegelungsposition befindet, dazu führt, daß die Hülse in ihrer Lage bezüglich des Hauptschaftes verriegelt wird.
EP88909489A 1988-09-06 1988-09-06 Einrastvorrichtung für den antrieb eines steckschrauben-schlüssels Expired - Lifetime EP0433284B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88909489T ATE123682T1 (de) 1988-09-06 1988-09-06 Einrastvorrichtung für den antrieb eines steckschrauben-schlüssels.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/US1988/003057 WO1990002634A1 (en) 1988-09-06 1988-09-06 Locking socket wrench drive device
CA000576565A CA1325739C (en) 1988-09-06 1988-09-06 Locking socket wrench drive device

Publications (3)

Publication Number Publication Date
EP0433284A1 EP0433284A1 (de) 1991-06-26
EP0433284A4 EP0433284A4 (en) 1992-01-08
EP0433284B1 true EP0433284B1 (de) 1995-06-14

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ID=4138679

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Application Number Title Priority Date Filing Date
EP88909489A Expired - Lifetime EP0433284B1 (de) 1988-09-06 1988-09-06 Einrastvorrichtung für den antrieb eines steckschrauben-schlüssels

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EP (1) EP0433284B1 (de)
AU (1) AU650231B2 (de)
CA (1) CA1325739C (de)
DE (1) DE3854001T2 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006041573B4 (de) * 2006-09-05 2011-07-28 Sui-Lan Lu Verbindungsstangenvorrichtung
DE102016123567B4 (de) 2016-12-06 2021-11-11 Yi-Fu Chen Drehmomenteinstellvorrichtung für einen drehmomentschlüssel
WO2022035864A1 (en) * 2020-08-10 2022-02-17 Koyo Bearings North America Llc Tablet tooling assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399722A (en) * 1981-03-06 1983-08-23 Sardo Jr Vincent Socket wrench including quick-release adaptor
US4768405A (en) * 1981-05-04 1988-09-06 Qualicorp Ltd. Locking socket wrench drive device
US4480511A (en) * 1981-05-04 1984-11-06 Nickipuck Michael F Locking socket wrench drive device
US4537100A (en) * 1984-02-28 1985-08-27 Bernhard Palm Push-on/quick release locking arrangement for socket wrench extension
DE3705672A1 (de) * 1987-02-21 1988-09-01 Kloeckner Humboldt Deutz Ag Drehvorrichtung

Also Published As

Publication number Publication date
CA1325739C (en) 1994-01-04
DE3854001D1 (de) 1995-07-20
DE3854001T2 (de) 1995-09-28
AU2618688A (en) 1990-04-02
EP0433284A1 (de) 1991-06-26
AU650231B2 (en) 1994-06-16
EP0433284A4 (en) 1992-01-08

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