EP0433284A4 - Locking socket wrench drive device - Google Patents
Locking socket wrench drive deviceInfo
- Publication number
- EP0433284A4 EP0433284A4 EP19880909489 EP88909489A EP0433284A4 EP 0433284 A4 EP0433284 A4 EP 0433284A4 EP 19880909489 EP19880909489 EP 19880909489 EP 88909489 A EP88909489 A EP 88909489A EP 0433284 A4 EP0433284 A4 EP 0433284A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- socket
- control bar
- shank
- extension
- shank member
- 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
Links
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- 230000007246 mechanism Effects 0.000 description 37
- 230000009471 action Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
- 238000003754 machining Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
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- 230000006872 improvement Effects 0.000 description 4
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- 238000009877 rendering Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
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- 230000002411 adverse Effects 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- 230000000717 retained effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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 he ratchet to the socket.
- fastener drive sockets can be affixed to mechanisms with which to drive those sockets.
- ost systems involve methods tailored to specific needs providing positive locking mechanisms for tools such as impact wrenches, where it is important to have the sockets firmly attached to the drive.
- complicated machining may be utilized since the drive mechanisms are of a relatively large size and bulk providing adequate strength despite extensive internal machining.
- these mechanisms are all devised to be utilized in a location where the operator is provided ample work space and compactness of the mechanism is not an important factor.
- Known mechanisms incorporate locking means such as external rotating collars which are unsuitable release from friction with obstructions (Rhinevault Patent No. 2,162,353).
- One other type of mechanism known in an application similar to that for the instant invention 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 (Smyers Patent No. 3,762,245).
- 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.
- Improved embodiments utilize alternative arrangements of the elements so as to enhance the utility and ease of operation of the tool.
- the first of these improvements utilizes the camming engagement of a series of retainer balls and a novel camming control bar to provide wedging between the bar and balls for effectively locking an associated socket.
- the second improvement uses the placement of a spring co-acting with the retainer balls so as to prevent loss of an associated socket upon accidental release of the locking sleeve.
- the third improvement utilizes a lock-back mechanism to increase the ease of placement of the socket on the tool.
- a fourth embodiment uses a securement portion as a separate structure from an extension shank.
- a fifth 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.
- 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'beveled to the lips.
- the control bar comprises a flat portion contiguous to the inclined or beveled portion.
- the inclined or beveled portion in this embodiment is of a dimension longitudinally such that the lower most portion of the control bar does not extend past the lower-most portion of the extension drive portion when the control bar is deflected fully forward or downward, while the upper edge of the inclined portion of the control at full forward or downward deflection does not extend as far as the bearing meas which transmit the lateral force from the control bar to the detent and thereafter maintaining the socket in locked position until release.
- the flat portion of the control bar comes in contact with the locking ball bearing thereby locking the detent in position against the wall of the socket and the retainer groove machined therein.
- a detent or retainer ball is slidably carried in the transverse aperture of the drive portion of the extension which when in locked position against the locking bearing ball and control bar exerts lateral force against the detent extending past the face in the square drive portion of the extension opposite the face into which the control bar channel is machined.
- the lateral extension of this detent mates with standard recesses machined in the drive walls of standard sockets and prevents the downward or forward movement of said sockets.
- the outward extension of the detent further serves to lock the socket in position with relation to the drive axis of the extension in that lateral pressure is exerted on the drive wall of the socket by the detent in its locked position and the control bar along the opposite face of the drive wall of the socket.
- the mechanism is maintained in its locked position through the use of a spring exerting forward or downward pressure against the release collar and locked in its forward extension through the use of circular clip ring or clamp.
- 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.
- 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.
- Fig. 1 is a perspective view of the invention and a standard socket in the release position.
- Fig. 2 is a perspective view of the invention and a standard socket in the locked position.
- Fig. 3 is a fragmentary sectional view of the invention in its released position.
- Fig. 4 is a fragmentary sectional view of the invention in its locked position shown in conjunction with a standard socket.
- Fig. 5 is an exploded perspective view of the invention showing its parts in relation to each other.
- Fig. 6 is a perspective view of the device as adapted to a power socket wrench drive device through the use of a yoke and bearing.
- Fig. 7 is a fragmentary sectional view of the device in its embodiment utilizing a retainer ball and single bearing ball.
- Fig. 8 is a fragmentary sectional view of the device utilizing a multiplicity of ball bearings as force transmittal device.
- Fig. 9 is a fragmentary sectional view of an embodiment of the device utilizing a single retention member of generally cylindrical configuration.
- Fig. 10 constitutes a perspective view of the device in its double locking embodiment in the locked position.
- Fig. 11 constitutes a fragmentary sectional view of the device in its double locking embodiment in the released position.
- Fig. 12 constitutes a fragmentary sectional view of the device in its double locking embodiment in the locked position.
- Fig. 13 constitutes an exploded view of the device in its double locking embodiment, further demonstrating the method of assembly and disassembly.
- Fig. 14 is an enlarged sectional view of the element shown in Fig. 7.
- Fig. 14a is a perspective cut away view of another embodiment of my socket locking extension.
- Fig. 15 is a sectional view of one embodiment of the improved socket locking extension in the locked position.
- Fig. 16 is a sectional view of one embodiment of the improved socket locking extension in its released position.
- Fig. 17 is an enlargement of the embodiment in Fig. 2
- Fig. 18 is an enlargement of the embodiment in Fig. 3
- Fig. 19 is a sectional view of another embodiment of the improved socket locking extension in its locked position.
- Fig. 20 is a sectional view of another embodiment of the improved socket locking extension in its locked position device.
- Fig. 21 is a sectional view of another embodiment of the improved socket locking extension in its released position device.
- Fig. 22 is a sectional view of another embodiment of the improved socket locking extension in its locked position device.
- Fig. 23 is a sectional view of an embodiment in which a separate securement structure is attached to a drive shank.
- Fig. 24 is a sectional view of an alternative embodiment in which a separate securement structure is attached to a drive shank.
- Fig. 25 is a sectional view of another embodiment of the improved socket locking extension in its locked position.
- Fig. 26 is a sectional view of another embodiment of the improved socket locking extension in its locked position.
- FIG. 1 a socket wrench drive extension including a driven portion of the socket drive extension 11, the socket wrench drive extension shank 9, and the driving portion of the socket wrench drive extension 12.
- the socket wrench drive extension is designed to be driven by the square drive portion of a standard ratchet handle mating with the drive portion 11.
- the socket wrench drive extension 12 drives a standard socket 21 which mates with the driving portion of the socket wrench extension 12.
- control bar channel 10 Machined in the surface of the socket wrench drive extension shank 9 is a control bar channel 10 which channel extends to 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.
- the control bar 14 includes the 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 end of the control bar 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 preferred embodiment 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 mechan-ism 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. .In improved embodiments, such as those expressed in Fig. 10 - 13, other fastening means can be substituted for C-clips.
- Fig. 3 is a fragmentary cross-sectional view of the preferred embodiment showing the lower portion of the drive extension shank 9,* the square driving portion of the socket wrench drive extension shaft 12.
- sectional view Fig. 3 is also shown in sectional view Fig. 3 which comprises 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 beveled 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 bearing ball 24, the transmission shaft 23 the tie in shaft for transmitting the locking force to the retainer ball 22.
- Fig. 3 shows the preferred embodiment in the spring- compressed position as in Fig. 1 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 thereby 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 25 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 is restricted by the C-clips 18.
- the control bar 14 is also extended downward to its maximum operating extension point.
- the control bar downward beveled 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 beveled 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 31 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 32.
- Fig. 5 is a perspective exploded view of an embodiment showing the parts separately in relation to each other.
- Fig. 6 is a perspective view of an alternative embodiment 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 pivotally mounted at 35 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 another embodiment 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 embodiment 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 cylindrical detent 38 is utilized, extending completely through the transverse bore.
- Fig. 10 constitutes a perspective view of the device in its double locking configuration.
- Apparent in Fig. 10 are the common features including the sleeve, 29 and control bar, 13.
- 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 thorough he 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 in its double locking embodiment in the 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, 31 is substantially the same as the other embodiments.
- Fig. 12 is a fragmentary sectional view of the device in its double locking embodiment 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 constitutes an exploded view of the device showing the components in a disassembled configuration. Assembly and disassembly is generally accomplished through removal of the retainer pin, 43.
- Fig. 14 illustrates a socket locking extension with a driven portion 11 extension 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 drive portion 11.
- 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 embodiment these constitute an inner annular ring 28 and terminal annular ring 29 of the sleeve defining an angular groove 30 between them. This preferred embodiment 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 embodiments. 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 embodiment.
- the socket 21 has a plurality of faces 31 which engage the drive 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 embodiment.
- the tip of the control bar is also beveled 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 in the limiting collar 52 and an opposing edge of the limiting collar.
- 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 53 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 horizontal distance between the tip of the control bar 51 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 my patent 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 which were noted in prior art and my earlier inventions.
- 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 essentially 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 essentially 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 another embodiment. This view is analogous to Fig. 15 and 17 which show the device in the locked position. It will be noted toward 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 embodiment of 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 latching element 66 in the recess 68.
- the mechanism is latched in the open position in this embodiment. This may be compared to other embodiments 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 and 12 of the tool.
- Fig. 23 shows an alternative embodiment of my invention.
- the securement portion of the tool is carried on a truncated body 80 of length limited to that necessary carry the sleeve 15, provide for the stop limiting retraction of the sleeve and 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 embodiments 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. 10 and 11 permits the use of dissimilar alloy metals in the truncated body and second shank, the use differential treatment as by heat treating of the respective truncated body and second shank and 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- second shank arrangement permits adaptation of various length
- Fig. 25 and Fig. 26 shows another embodiment which provides semi automatic retraction.
- the control bar 14 has a recess 101 placed in its tip 51.
- This recess includes a face 102 substantially parallell 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 51 is biased upward so that it engages the base of the socket.
- the socket 31 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.
- a wrench apparatus comprising: a socket member;
Landscapes
- 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)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88909489T ATE123682T1 (en) | 1988-09-06 | 1988-09-06 | LOCKING DEVICE FOR DRIVING A SOCKET WRENCH. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000576565A CA1325739C (en) | 1988-09-06 | 1988-09-06 | Locking socket wrench drive device |
PCT/US1988/003057 WO1990002634A1 (en) | 1988-09-06 | 1988-09-06 | Locking socket wrench drive device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0433284A1 EP0433284A1 (en) | 1991-06-26 |
EP0433284A4 true EP0433284A4 (en) | 1992-01-08 |
EP0433284B1 EP0433284B1 (en) | 1995-06-14 |
Family
ID=4138679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88909489A Expired - Lifetime EP0433284B1 (en) | 1988-09-06 | 1988-09-06 | Locking socket wrench drive device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0433284B1 (en) |
AU (1) | AU650231B2 (en) |
CA (1) | CA1325739C (en) |
DE (1) | DE3854001T2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006041573B4 (en) * | 2006-09-05 | 2011-07-28 | Sui-Lan Lu | Tie-rod device |
DE102016123567B4 (en) | 2016-12-06 | 2021-11-11 | Yi-Fu Chen | TORQUE ADJUSTMENT DEVICE FOR A TORQUE WRENCH |
WO2022035864A1 (en) * | 2020-08-10 | 2022-02-17 | Koyo Bearings North America Llc | Tablet tooling assembly |
Citations (3)
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 |
US4480511A (en) * | 1981-05-04 | 1984-11-06 | Nickipuck Michael F | Locking socket wrench drive device |
DE3705672A1 (en) * | 1987-02-21 | 1988-09-01 | Kloeckner Humboldt Deutz Ag | Turning device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768405A (en) * | 1981-05-04 | 1988-09-06 | Qualicorp Ltd. | 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 |
-
1988
- 1988-09-06 AU AU26186/88A patent/AU650231B2/en not_active Ceased
- 1988-09-06 EP EP88909489A patent/EP0433284B1/en not_active Expired - Lifetime
- 1988-09-06 DE DE3854001T patent/DE3854001T2/en not_active Expired - Fee Related
- 1988-09-06 CA CA000576565A patent/CA1325739C/en not_active Expired - Fee Related
Patent Citations (3)
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 |
US4480511A (en) * | 1981-05-04 | 1984-11-06 | Nickipuck Michael F | Locking socket wrench drive device |
DE3705672A1 (en) * | 1987-02-21 | 1988-09-01 | Kloeckner Humboldt Deutz Ag | Turning device |
Non-Patent Citations (1)
Title |
---|
See also references of WO9002634A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2618688A (en) | 1990-04-02 |
EP0433284A1 (en) | 1991-06-26 |
DE3854001T2 (en) | 1995-09-28 |
AU650231B2 (en) | 1994-06-16 |
EP0433284B1 (en) | 1995-06-14 |
CA1325739C (en) | 1994-01-04 |
DE3854001D1 (en) | 1995-07-20 |
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