Abstract: A multipurpose handle and workpiece attachment tool (10, 12, 14) has a handle (16) and a workpiece (18). The handle has a grip portion (20) at a first end and a first attachment portion (22) at a second end. The workpiece has a second attachment portion (24) adapted to engage the first attachment portion of the handle. The first attachment portion has a sleeve (26) with an opening (30) which can receive the second attachment portion. The sleeve has a clip-lock aperture (32) and a cam-lock aperture (34), and there is a cam clamping lever (28) pivotally connected to the sleeve. The cam clamping lever has an eccentric cam surface (36) which can be moved into and out of the cam-lock aperture by operating the cam clamping lever.

Abstract: An electrical connector having an electrical conductor member with a first opening and a second opening. Grab rings mounted in the openings have inner diameters containing teeth with crests defining a superimposed inner diameter. The teeth of the grab rings deflect and frictionally engage the outer diameter of the wires to retain them in the openings. A sleeve of insulation material covers an exterior of the conductor member. The sleeve has ends that protrude past the openings and receive an insulation layer of the wires. Resilient electrical contact members are recessed from the grab rings in the openings. The electrical contact members have inner portions biased into contact with the electrical wires and outer portions biased into contact with the conductor member.

Abstract: A rebar coupler that includes a plurality of segments having the same shape and radially arranged, the segments being seated on outer surfaces of a pair of reinforcing bars with ends of the reinforcing bars simultaneously accommodated therein, a spacer configured to accommodate the segments therein and support them while spacing the segments at regular intervals, and a pair of sleeves configured to press the outer surfaces of the reinforcing bars against inner peripheral surfaces of the segments by allowing the segments to be close to each other when the sleeves approach each other.

Abstract: A concrete form board sleeve connector included a top section and a bottom section connected together. The top section and the bottom section form a rectangular shape with an interior volume. There are openings at opposing ends of the rectangular shape, the openings are configured to accept the ends of two different boards. A middle section is placed within the rectangular shape and is designed to prevent the board ends from going all the way through the rectangular object.

Abstract: The described embodiments provide a subsea connector that is a quickly deployable and reusable. The subsea connector comprises a male and a female assembly that can be connected and disconnected. The male assembly includes a shaft, a sleeve that surrounds the shaft, and bars that are connected to the shaft and are configured to rotate about one axis. The female assembly includes a receptacle into which the male assembly can fit. Once the male assembly is inserted into the female assembly, the bars can rotate into such a position that the male and female assemblies are connected together. The bars can also be rotated such that the male and female assemblies can be disconnected.

Abstract: A cable termination system and method include providing an outer socket having a frustum shaped socket interior tapering from a base to a top opening. The outer socket is comprised of two semicircular socket pieces, each forming a portion of a complete circumference of the outer socket. A plurality of elongate cable strands extend through the socket interior with individual strands circumferentially spaced to form a single layer of strands at the base opening. A frustoconical inner plug is inserted into the socket by a compressive force exceeding a maximum tensile force of the stranded cable for holding the cable in the socket without slippage when a tensile force is applied between the cable and the outer socket. The inner plug includes a plurality of longitudinally extending, laterally separate plug subassemblies.

Abstract: A cargo pallet having parallel, spaced runners with parallel, spaced slats mounted transverse thereto by removable pins. Each of the slats is substantially identical and each has different opposing faces so that when the slats are reversed the different faces provide different cargo-supporting surfaces. There are slat grooves on the runners into which the slats are mounted, along with endwalls, to prevent something from extending between the slats and the runners to separate slats and runners. Blockers extend laterally from one or both sides of the slats to prevent a forklift from contacting the cargo, and when the slats are reversed the blockers interlace.

Abstract: A coupling apparatus presses conical members having curved surfaces in a direction perpendicular to reinforcing bars by using hydraulic pressure, thereby considerably reducing working time for coupling reinforcing bars, completely securing the reinforcing bars and increasing compressive and bending strength. It is possible to stably carry force from the conical members through external force dispersion medium members to reinforcing bar securing members. Accordingly, there is a structural advantage of effectively preventing the displacement and the loosening of the coupled reinforcing bars.

Abstract: A clamping assembly for a strut element. The clamping assembly connects one end of the substantially tubular strut to a threaded bolt. The clamping assembly comprises a threaded sleeve that is arranged in the tubular strut in a radial annular gap between the threaded bolt and the inside cross-section of the strut, in a conical internal thread of the strut. The threaded sleeve has a conical external thread and an internal thread that receives the threaded bolt. The end of the sleeve, that is received by the strut, is radially elastic.

Abstract: A kit for mounting one or more appliances on a pole, the kit comprising a central ring for being mounted around a pole and having a through-hole, a fitting surface and a support surface, and a carrier having a base part and at least one support arm extending from said base part for supporting one or more appliances, wherein said base part is adapted to be fitted on said support surface and has a through-hole adapted for being fitted around said fitting surface.

Abstract: A pin-and-collet assembly, a longwall shearer comprising a ranging arm attached to a lifting bracket with such assembly, a method for the secure fastening of one piece to another, such as securely fastening the ranging arm to the lifting bracket of a longwall shearer using such assembly as a bushing, and a method for longwall mining of ore, such as trona, using such longwall shearer. This assembly is easy to install, does not have to be tightened during longwall operation of an ore panel, and is also demountable when it is time to stop the longwall mining operation and time to remove/replace the ranging arm for maintenance and/or when the end of the ore panel is reached.

Abstract: A mechanism and method for locking a bearing to a shaft includes a split sleeve and a receptive flange adapted to be fixed to the bearing. A positioning flange is coupled to the split sleeve. A screw extends through the positioning flange and threadingly engages the receptive flange. Rotation of the screw in a first direction axially drives the sleeve into engagement with the bearing to collapse the split sleeve into engagement with the shaft.

Abstract: A hollow shaft coupling for connecting a shaft (3) to a hollow shaft (2), wherein the hollow shaft coupling (1) can be arranged completely in the hollow shaft (2) and can effect clamping both axially inwardly as well as axially outwardly. The coupling (1) enables a first clamping unit (5) to clamp the hollow shaft coupling (1) axially inwardly against the shaft (3) and a second clamping unit (6) which is separate from the first clamping unit (5) to clamp the hollow shaft coupling (1) axially outwardly against the inner circumferential surface (7) of the hollow shaft (3), with the two clamping units (5, 6) spaced apart from one another axially, and the two clamping units (5, 6) connected to one another via a play-free and rotationally stable coupling which is arranged between them.

Abstract: Apparatus for operatively connecting an actuator rod to a valve stem is disclosed. An example apparatus includes a connector housing having an outer surface and an inner surface where the inner surface defines an internal cavity. The example apparatus also includes an actuator rod passage extending from the outer surface into the internal cavity that is adapted to receive at least a portion of the actuator rod and a valve stem passage extending from the outer surface into the internal cavity that is adapted to receive at least a portion of the valve stem. Additionally, the example apparatus includes a load relieving body disposed within the internal cavity between the actuator rod passage and the valve stem passage.

Abstract: Joint assemblies for collapsible structures include a mating member and a receiving member connected together by a flexible member. The receiving member includes a socket section having a lumen with an internal surface and a longitudinal slot. The mating member includes a tip section that, at a first end thereof, has a non-circular cross-section that provides at least two points of contact with the internal surface of the socket section when the tip section is positioned within the lumen of the socket section. The joint assemblies include a slider that has an internal diameter that varies along the length of the slider to retain the tip section of the mating member within the lumen of the receiving member.

Abstract: A rotary panel fastening structure includes a mating socket mounted in a through hole in a recessed accommodation chamber in a top wall of a first panel member, a locking knob, a connection plate fastened to the locking knob and a handle pivotally connected to the connection plate and receivable in the recessed accommodation chamber in a flush manner and operable to rotate the locking knob through 90° angle between an unlocking position where the locking knob is movable with the first panel member in and out of a slot of a second panel member and a locking position where the locking knob is engaged with the second panel member to lock the first panel member and the second panel member together.

Abstract: A swiveling locking mechanism of a telescopic rod of a mop, including: an internal clamping sleeve, an external clamping cylinder, and a U-shaped locking arm. The external clamping cylinder is mounted on the internal clamping sleeve and the lower portion of the external clamping cylinder is constructed as a trumpet-shaped opening mounted from top to bottom on the conic body. The U-shaped locking arm includes an eccentric cam is provided with a mounting hole corresponding to the axle hole of the internal clamping sleeve. Thus, when moving downward the U-shaped locking arm, the external clamping cylinder rises, and the trumpet-shaped opening of the external clamping cylinder is brought in a loosened position. As a result, the indentation is loosened and the internal rod and the external rod are brought into the unlocked and telescopic state and vice versa.

Abstract: A connector for rigidly engaging elongate structural members in a display structure includes a beam connection portion defined on a body and having a cavity. A semi-cylindrical guide surface of the cavity is adjacent to an opening. The opening has an elliptical shape in which the difference between a major and a minor axis is an offset distance. An eccentric fastener is rotatably disposed in the cavity and includes a head portion that protrudes from the opening and engages a hole of the elongate structural member, and a cam portion that is eccentrically disposed relative to the head portion and configured to engage the semi-cylindrical surface when the eccentric fastener is rotated relative to the connector.

Abstract: A composite structural member is provided. The structural member includes a tubular shaft having a mating region of stiffness, and possibly thickness, greater than another region of said shaft. The shaft defines a lumen, and a fitting is disposed in the lumen. The fitting has a coupling region that defines at least one recessed portion bounded by one or more non-recessed portions, and the mating region mates with the coupling region of said fitting. As such, the shaft and fitting are mechanically restrained from at least some relative movement due to interference of the shaft and the fitting. A sleeve may be coupled to said shaft, for example, by including a tubular inner surface that proximately surrounds at least part of said shaft and mating region, for discouraging expansion of the mating region of said shaft.

Abstract: A tubular connector system for joining two pipe ends without the necessity of rotating the pipe ends. A coupling has opposing tapered ends. Each of the tapered ends slopes inwardly from an inner extent to an outer extent to form a respective mouth opening of the body. Each tapered end of the coupling has a contoured surface which is made up of a series of alternating helical spline wedges. The wedges are oppositely tapered from an inner extent to an outer extent, whereby the helical spline wedges form an alternating series of lands and grooves on the body as viewed from the respective mouth openings. The two opposing pipe ends have mating engagement surfaces which engage and mate with the contoured surfaces of the coupling as one pipe end is pushed toward the other during assembly.

Abstract: An angularly adjustable clamp assembly includes a hub clamp, an adjustment base connectable to the hub clamp and a plurality of attachment members. The hub clamp includes a hub and collar, the hub having a sleeve portion forming a passageway to receive a shaft. The sleeve portion has multiple slits along the sleeve portion to form a plurality of sleeve segments. The collar has an inner surface configured to engage an outer surface of the sleeve portion. The attachment members cause the collar to move axially along the length of the sleeve portion to urge the sleeve segments radially inward to secure the shaft within the passageway. The assembly is configured such that at least one attachment member further connects the adjustment base to the hub clamp. The attachment members can be actuated to cause an angular adjustment of two shafts connected by the assembly.

Abstract: A bicycle handlebar includes a cylinder having two collars formed on each end portion, two arms each having a barrel disposed between the collars, two bars engaged through the collars and the barrels of the arms for pivotally connecting the arms to the cylinder, and two followers engaged into the cylinder and movable relative to the cylinder for moving the barrels of the arms to clamp and retain the bars to the cylinder at the selected position and to retain the barrels of the arms at the selected angular position relative to the cylinder, the arms are adjustable relative to the cylinder to the selected angular position and the bars are movable relative to the cylinder to the selected position when the followers are released.

Abstract: A collar assembly for coupling a blade assembly and a removable jar to the base of a motorized blender includes an interlock assembly that prevents coupling of the blade assembly to the blender motor unless the jar is secured to the collar assembly, and prevents removal of the jar from the collar assembly when the collar and blade assembly is coupled to the blender base.

Abstract: A device for an axle-bore connection wherein an axle runs through a bore in a machine element and wherein a clampable element encircles the axle in the bore, and wherein the clampable element is accessible from only one of the end portions of the bore, and wherein the clampable element has a first set of contact faces near the first end portion of the bore and a second set of contact faces near the second end portion of the bore.

Abstract: A pocketformer apparatus for post-tension construction has an anchor member with an interior passageway, a tubular member extending into the interior passageway, a cup member with an interior opening in which the tubular member extends through the interior opening, and a securement member affixed adjacent the opposite end of the tubular member from the anchor body. The interior passageway has a threaded portion. The tubular member has a first end retained in the threaded portion. The tubular member has the second end extending outwardly of a side of the anchor body opposite the threaded portion. The cup member is interposed between the securement member and the anchor member. A form board is interposed between the cup member and the securement member. The threaded portion is an internal thread formed on an non-tapered portion of the interior passageway.

Abstract: A valve shaft 8 and a drive shaft 11 of an EGR valve 1 are butted to each other; protrusions 26a, 26b, 27a, and 27b formed on the inner sides of cotter members 24, 25 of a cotter 23 are engaged with grooves 21, 22 respectively formed on the outer peripheral surfaces of the ends of the shafts 8, 11; the urging force of a spring 28 for exerting an urging force in the closing direction of valve disks 6, 7 on the cotter 23 is applied to the cotter 23 through a spring holder 30 to press the protrusions 26a, 26b, 27a, and 27b to the grooves 21, 22.

Abstract: A cap for an anchorage of a post-tension anchor system has an outer tubular portion having an inner wall and an outer wall, an inner tubular portion having an inner wall and an outer wall, an end wall extending between the outer tubular portion and the inner tubular portion, and a sheathing lock affixed to the inner wall of the inner tubular portion. The inner wall of the outer tubular portion is in spaced relation to the outer wall of the inner tubular portion. The outer tubular portion and the inner tubular portion are concentric with each other. The sheathing lock has a body having locking ribs extending radially inwardly therefrom. The locking ribs extend in parallel relationship to each other. The outer tubular portion and the inner tubular portion and the end wall are integrally formed of a polymeric material.

Abstract: An anchoring system to lock posts into housings mounted in the ground, or to lock pipes into housings within holes through walls or foundations uses plastic collets to match post outer profiles to inner housing profiles. The collets have two gently tapered circumferential areas which lock into corresponding tapered areas in the housing. Keys help to lock the post into the collet and in turn into the housing. Customized collets match incompatible posts and housings. The anchored post may be released for re-use, with a security release system that requires the use of special tools.

Abstract: An apparatus for fixing the sheathing of an end of a tendon within an anchor body of a post-tension anchor system has an anchor body that has a cavity formed in an interior thereof, a tendon extending into the cavity that has a sheathing extending at least partially thereover and has a sheathed portion and an unsheathed portion, a pair of wedges in engagement with the unsheathed portion of the tendon in the cavity of the anchor body, and at least one wedge member engaged with the sheathed portion. The wedge member has a first portion and a second portion. The first portion is of a generally constant thickness and has an end adjacent the pair of wedges. The second portion has a first end and a second end, the second portion being of a decreasing thickness from the first end to the second end.

Abstract: An anchorage for post-tension system has an anchor body with an interior passageway, a polymeric encapsulation extending over the anchor body so as to define a trumpet extending outwardly on one side of the anchor body, and an annular seal formed so as to extend inwardly relative to a wall of the trumpet. The annular seal is in liquid-tight sealing relation with an outer surface of a tendon extending through the interior passageway. A fixing element is formed within the interior passageway so as to fix a position of the sheathing on the tendon.

Abstract: A collar assembly for coupling a blade assembly and a removable jar to the base of a motorized blender includes an interlock assembly that prevents coupling of the blade assembly to the blender motor unless the jar is secured to the collar assembly, and prevents removal of the jar from the collar assembly when the collar and blade assembly is coupled to the blender base.

Abstract: The invention relates to a connection element for running rails of a suspended track for receiving the running rails (2, 2?) and a securing device for securing the running rails (2, 2?) against being pulled out of the cavity (H, H?) and a running rail system having multiple running rails (2, 2?), which can be connected by connection elements (1; 11). The invention solves the problem of allowing simple and rapid tool-free mounting with a simultaneous secure connection of running rails of the running rail system in that the securing device of the connection element has at least one spring-elastic first connection claw (8; 12; 15), which projects diagonally in an insertion direction (E) of a first running rail (2) into the cavity (H) in the relaxed state, and/or by a running rail system having connection elements (1; 11) implemented in this way.

Abstract: A sheathing-retaining article for use with a post-tension anchorage system has a wedge with a tendon-retaining portion and a sheathing-retaining portion. The tendon-retaining portion has a channel extending longitudinally therealong. The channel is suitable for retaining the tendon therein. The tendon-retaining portion has a tapering outer surface with a wide end at one end of the wedge and a narrow end spaced therefrom. The sheathing-retaining portion extends outwardly from the narrow end of the tendon-retaining portion. The sheathing-retaining portion engages a sheathing of a tendon extending through the channel of the wedge.

Abstract: An apparatus for fixing the sheathing of an end of a tendon within an anchor body of a post-tension anchor system has an anchor body with a cavity formed therein, a tendon extending into the cavity, a fixing element engaged with the sheathing of the tendon for fixing a position of the sheathing on the tendon, and a pair of wedges in engagement with the unsheathed portion of tendon within the anchor body. The fixing element is positioned within the cavity. The fixing element can either be a wedge member interposed between the sheathing and the tendon so as to frictionally engage the tendon or a clip member engaged with the sheathing.

Abstract: An apparatus for fixing the sheathing of an end of a tendon within an anchor body of a post-tension anchor system has an anchor body having a cavity formed in an interior thereof, a tendon extending into the cavity and having a sheathing extending at least partially thereover and having a sheathed portion and an unsheathed portion, a pair of wedges engaged with the unsheathed portion of the tendon in the cavity of the anchor body, and a wedge member engaged with the sheathing of the sheathed portion. The wedge member is a unitary piece having a longitudinal split extending from an end of the piece to an opposite end of the piece. The wedge member substantially encircles an interior or an exterior of the sheathing of the sheathed portion of the tendon.

Abstract: An apparatus for preventing shrinkage of a sheathing of a tendon has an anchor body having a cavity formed in an interior thereof, a tendon extending into the cavity, a fixing element engaged with the sheathing for fixing a position of the sheathed portion on the tendon, and a pair of wedges in engagement with the unsheathed portion of tendon in the cavity of the anchor body. The fixing element is positioned away from the cavity of the anchor body. An encapsulation is formed over the anchor body so as to define a trumpet extending outwardly from one side of the anchor body. A clamp is engaged with the sheathed portion of the tendon within the trumpet.

Abstract: A device for fixing the sheathing of an end of a tendon within an anchor body of a post-tension anchor system has an anchor body having a cavity formed in an interior thereof, a tendon extending into the cavity having a sheathing extending at least partially thereover and having a sheathed portion and an unsheathed portion, a pair of wedges in engagement with the unsheathed portion of the tendon in the cavity of the anchor body, and at least one wedge member engaged with the sheathed portion. The wedge member has a wide end and a narrow end, the wide end being adjacent to the pair of wedges. The wedge member has a decreasing thickness from the wide end to the narrow end.

Abstract: An article for engaging a sheathing of a sheathed portion of a tendon has a tubular body having an inner surface and outer surface and a first end and a second end, fins extending radially outwardly from the outer surface, a longitudinal split extending through a wall of the tubular body and extending from the first end to the second end, locking ribs extending radially inwardly from the inner surface of the tubular body, and a collar formed adjacent the second end of said tubular body. Each of the locking ribs extends parallel to the other locking ribs. The locking ribs are equally spaced along the inner surface of the tubular body. Each of the fins extends parallel to the other fins. Each of the fins have a height increasing from the first end to the second end of the tubular body.

Abstract: A fuel can adapter has a threaded section for threadly engaging with a fuel device. Particularly the fuel device has a threaded joint for engagement with the thread section of the fuel can adapter. In addition, this threaded joint can be used to connect a fuel can with a thread head such that fuel in the fuel can flow to the fuel device. With the fuel can adapter, a fuel can with a head, which does not have a threaded head but has a flange extending circumferentially thereon, is adapted to connect to the fuel device such that fuel in the fuel can flow to the fuel device.

Abstract: A exhaust component assembly includes an exhaust component and a divider plate. The exhaust component includes an inner wall defining a gas passageway. The divider plate is inserted in the gas passageway and secured to the exhaust component by mechanical locking means, generally in an interference-fit relationship.

Abstract: An expander nut is for being assembled to an upper end of a steering tube of a bicycle. The expander nut includes a base nut, two wedge halves having interlocking tapered surfaces and assembled to the base nut, a top cap mounted on the wedge halves, and a bolt screwed to the base nut for controlling the wedge halves to slide relatively along the tapered surfaces so that the wedge halves move outward to wedge an inner surface of the steering tube.

Abstract: A securing apparatus that releasably secures two or more mechanical elements is provided. The securing apparatus may be attached to one mechanical element and include abutment surfaces that abut at least one additional mechanical element. Forces exerted by the at least one additional mechanical element and the securing apparatus on each other serve to maintain the securing apparatus in an engaged position. The securing apparatus may include a locking member that includes a protruded portion that extends at least partially beneath the securing apparatus and at least one mechanical element. A pull-ring may be provided to rotate the locking member and release the mechanical elements being secured.

Abstract: A cable termination and method of terminating a median barrier cable is described. In one form, the cable termination comprises a tubular body with an opening into which an end of the median barrier cable is inserted. A wedge gripper includes three sections for gripping the end of the median barrier cable within the tubular body. The wedge gripper has a tapering outer surface that mates with a tapered inner surface of the tubular body and has a toothed inner diameter. A threaded cap is screwed to an end of the tubular body opposite from the cable opening, such that the threaded cap forces the tapering outer surface of the wedge gripper axially against the tapered inner surface of the tubular body to force the toothed inner diameter of the wedge gripper to contract against three lobes of the median barrier cable to grip the median barrier cable.

Abstract: A turnlock fastener (1) for the connection of two components features a cover plate (4) and a base shaft (5) which is formed on the cover plate (4) and which extends away from the cover plate (4), at which at least two opposing rigid locking stands (10, 11) are positioned at a distance from the cover plate (4) and extend outward from the base shaft (5) in the radial direction. In addition, a fixing arrangement is provided to secure the turnlock fastener (1) to a first component which possesses at least two radial elastic spring limbs (14, 15) which are each arranged between two locking stands (10, 11) and which are connected at one end with the base shaft (5) and which extend away from the base shaft (5) with the other free end in the direction of the cover plate (4). That way, the turnlock fastener (1) can be secured ahead of time within certain relatively large dimensions of insertion openings of different sizes and with relatively large pullout forces.

Abstract: A safety guard 10 has a guard body 12 shaped such that it will fit over the yoke 18 of a power take off shaft. The yoke 18 includes a groove 24 formed in an outer surface near the end 22. Safety guard bearing 26 is mounted to groove 24. Safety guard bearing 26 also has a groove 28 formed in an outer surface. Two levers 30 are pivotally mounted to the safety guard body 12 by pivot pins that extend through apertures 36 in the levers 30. One end of levers 30 has a camming member that includes a lobe 38. Due to the relative position of the pivot aperture 36 and the lobe 38, the lobe 38 acts as an over center cam. When lever 30 is in the locked position, lobe 38 extends into groove 28. Lever 30 also includes a locking tongue 46. When the lever 30 is moved to the locking position, locking tongue 46 also extends into groove 28 on safety guard bearing 26. Thus, locking tongue 46 provides a secondary locking mechanism to assist in maintaining the safety guard 10 on the safety guard bearing 26.

Abstract: A splice sleeve for receiving and connecting adjoining ends of a pair of reinforcing bars with one end having an enlarged end and the other end without an enlargement. The splice sleeve has an internal surface which is generally cylindrical with ridges over a major portion of its length starting at one open end and steeply tapered inwardly toward a smaller opening on the other end. The sleeve's inwardly tapered end is complementarily configured to captively receive and lock in place the enlarged head of the first rebar end. The second rebar end is inserted into the sleeve's cylindrical portion up to the enlarged end of the first rebar, and the sleeve is filled with high strength grout through side ports to hold the bar ends in a coupled arrangement.

Abstract: A drive coupling assembly (10) for attaching two shafts includes a coupler body (11) and a locking clip (12). The body (11) has a splined opening (23) which is adapted to receive one shaft, and an aperture (24) which is adapted to receive a drive shaft (13) of a motor (14). A slot (25) is formed in coupler body (11) and the slot (25) communicates with the aperture (24). The clip (12) is positioned in the slot (25) and includes a spring tab (33) which can engage an undercut (40) in the shaft (13) to maintain the drive coupling assembly (10) on the shaft (13).

Abstract: Even if the coupling surface of an arm side attachment and a tool side attachment is directed in a direction other than the horizontal direction, the tool side attachment can be automatically separated and detached from the arm side attachment. When exchanging a tool, the worker does not have to forcibly pull out and detach a tool side attachment from an arm side attachment, a tool can be exchanged automatically, and the exchange work can be performed easily in a short period of time. When the cam member 17 is shifted from the unlocking position to the locking position, locking balls 13 which slide on locking inclined tapered surfaces 17a to be shifted to the outside along the radius direction are engaged with engaging inclined tapered surface 23a so as to mutually couple an arm side attachment 3 and a tool side attachment 5.

Abstract: A detachable fastening apparatus for front fork accessories of bicycles to provide fast installation and removing of the bicycle accessories on the front fork of the bicycles. It includes a packing means and a coupling dock located on an accessory. The packing means has a rotary latch disk and can be anchored in a tube of the front fork. By swiveling the rotary latch disk the packing means can be fastened to the coupling dock thereby to install or remove the accessory rapidly.

Abstract: The invention relates to a coupling device for the connection of pipes to a retaining device, which has an outer part and an inner part arranged in the outer part. This coupling device is characterised in that the outer part and the inner part can move relative to one another and in the longitudinal direction of the retaining device between a locking position and a release position, wherein at least one wedge surface, arranged sloping with respect to the longitudinal axis of the retaining device, is provided on the outer part, which interacts with at least one complementarily formed wedge surface, which is provided on the inner part.