Abstract: A wheel loader includes a bucket boom including a pair of left and right side members; a front frame to which the base ends of the pair of side members are coupled; and a boom cylinder of which a base end is coupled to the front frame and a distal end is coupled to the side members. A base-end interval between the pair of side members is smaller than a distal-end interval between the side members. A face section that inclines towards a middle as extending in an upwards direction is provided on the left and right extremities of the front frame. A mounting boss to which the base end of the boom cylinder is attached is provided on a lower side of the face section while a mounting boss to which the base ends of the side members are attached is provided on an upper side of the face section.

Abstract: Coupling assemblies for releasably holding separable parts together, and in particular for releasably securing a wear member to a support structure in excavating equipment are formed so as to provide increased take up to ensure a tight fit of the wear member on the support structure even if considerable deviation between the parts exists due to wearing, manufacturing variations or the like. The coupling assemblies are suitable for securing points, adapters, shrouds, or other replaceable component to various excavating equipment. The components of the coupling assembly include a wedge and a spool that pivots about a fulcrum when the wedge is driven into assembly for increased take up capabilities. The spool is rotatably engaged around a fulcrum of the support structure and has a bearing portion that bears against and moves the wear member to be secured to thereby take up any gaps between the engaging surfaces of these members.

Abstract: A wear assembly for excavating equipment which includes a wear member and a base each with upper and lower stabilizing surfaces that are offset and at overlapping depths to reduce the overall depth of the assembly while maintaining high strength and a stable coupling. The nose and socket each includes a generally triangular-shaped front stabilizing end to provide a highly stable front connection between the nose and wear member for both vertical and side loading. The lock is movable between hold and release positions to accommodate replacing of the wear member when needed, and secured to the wear member for shipping and storage purposes.

Abstract: The present invention relates to a wear assembly, as well as to the different components thereof, which has a wear member or tooth and an adaptor member or tooth bar for wear applications in a machine for moving materials such as earth and stones. The invention contemplates a wear assembly and particularly a coupling system between the different components to one another by a characteristic coupling system and at least one retention system assuring the coupling and anchor between the different components, specifically between the wear member and adaptor, the latter in turn being joined to the blade of a bucket or scoop of a machine for moving materials, such as an excavator or the like.

Abstract: A tooth retention device for attachment to an excavator bucket, which has a tooth mounting portion, a fork shaped body fitting over the edge of the bucket, a clamp passing through the body and the bucket, and a wedge holding the clamp in position, in which the wedge has a threaded rod and a threaded block on the rod. The rod is rotatable to move the block between locked and released positions.

Abstract: A tooth assembly including an adapter and a tooth. The adapter has a nose portion with a first predetermined configuration. The tooth is assembled onto the adapter nose portion by relative longitudinal movement. The tooth defines a blind cavity having a second predetermined configuration and opening to a rear of the tooth. The second predetermined configuration defined by the tooth cavity is greater than the first predetermined configuration defined by the adapter nose portion such that a space is provided between the adapter nose portion and the blind cavity when the adapter and tooth are arranged in operable combination relative to each other. A securement member releasably maintains the tooth and the adapter nose portion in operable combination relative to each other. The securement member fills the space defined between the tooth cavity and the adapter nose portion to resist longitudinal movement between the tooth and the adapter nose portion.

Abstract: A locking assembly for retaining a wear member to excavating equipment has a locking element that is received into an opening in the assembly and is movable about a pivot axis in the opening between a hold position and a release position. The locking element has an outer edge that is generally opposite the pivot axis that opposes a base surface of the opening when the locking element is in the hold position. The outer edge is configured to pull away from the base surface when the locking element is rotated from the hold position toward the release position.

Abstract: There is disclosed a pair of components which, in the embodiment described, are a tooth (2) and adaptor (3) for earth-moving apparatus (1). The adaptor is for mounting the tooth on an earth-moving bucket, this mounting being releasable to allow replacement of the tooth when worn. The components define aligned passages (11) through which a locking pin (12) extends to retain the components together. The locking pin has formations (22) for engaging formations (20) on the first component when the pin is rotated from a free position into a locked position. The pin has an insertion recess (27) which is aligned with the formations (20) allowing the pin, in the free position, to be inserted into, or removed from, the aligned passages. The formations (20) are resiliently movable to stably engage the pin when in the locked position.

Abstract: A lock that includes a wedge that is used to releasably secure separable components of an assembly together. The wedge can be used with a spool. The wedge and spool are threadedly coupled together to drive the wedge into and out of an opening in the assembly without hammering or prying. The direct coupling of the wedge and spool eliminates the need for bolts, washers, nuts and other hardware so as to minimize the number of parts. As a result, the lock is inexpensive to make, easy to use, and unlikely to become inoperative because of lost or broken parts or due to fines or other difficulties encountered in harsh digging environments. Further, the wedge can be driven into the assembly to provide the degree of tightness necessary for the intended operation and/or to re-tighten the assembly after incurring wear during use. A latch assembly is preferably provided to securely hold the wedge in place and avoid an undesired loss of parts during use.

Abstract: A one-piece digging tooth having a socket opening to a rear end of the tooth for receiving and accommodating at least a lengthwise portion of a nose portion of an adapter extending forward from earth working equipment. The digging tooth has a top surface and a bottom surface which angularly diverge from each other between a forward end and the rear end of the tooth and two side surfaces. The tooth further includes a longitudinally elongated and centrally disposed tine with another longitudinally elongated tine outwardly cantilevered from and disposed to opposite lateral sides of and extending generally parallel to the central tine. To enhance their penetration capability, a width and thickness of all the tines constantly diminishes as the tines longitudinally extend toward the forward edge of the tooth.

Abstract: A replacement and urging device for the bucket teeth of an engineering construction machine is disclosed. An adaptor is mounted with a bucket tooth. A first through hole holes horizontally through the adaptor. Both sides of the bucket tooth are formed with a second through hole, respectively. An engaging unit is interposed between the first through hole and the second through hole to slide between them. This enables the bucket tooth to be mounted and positioned on the adaptor. The invention thus prevents the bucket tooth from constantly hitting the adaptor.

Abstract: A mounting pin assembly having a retaining member which includes a locating surface and a boss extending from the locating surface. The mounting pin assembly also has a locating member slidably mountable upon the locating surface of the retaining member. The locating member also has an enlarged portion defined by an outwardly divergent face. The mounting pin assembly also has a tensioning member extending between and coupling the boss of said retaining member and the locating member. The tensioning member is configured to cause relative contraction of the mounting pin assembly such that the locating member is drawn upon the locating surface of the retaining member towards the boss when a tensile force is applied to the tensioning member.

Abstract: A wear assembly for protecting a structure, such as an excavating bucket, from wear includes a lock for securing the wear member in place. The lock includes a take-up element for tightening the fit of the wear member, a latch to retain the lock in the assembly during use, and an arrangement for resisting loosening of the lock. With the assembly, the lock is able to effectively tighten the fit of the wear member on the lip, resist loosening of the fit, and facilitate easy removal of the lock without a concomitant increased risk of lock ejection.

Abstract: An excavation retention assembly is provided for mounting a tooth to an excavating apparatus. The assembly in one embodiment includes a tooth and an adaptor end of a working member of an excavating apparatus. The tooth includes a cavity for mating with an end of the adaptor, an opening for receiving a fastening member and a fastening receptacle in the cavity opposite the opening in the tooth for receiving the fastening member. The adaptor includes a passage which aligns with the opening in the tooth and the fastening member. The fastening member passes through the aligned opening of the tooth, the passage of the adaptor and into the fastening receptacle for securing the tooth to the adaptor.

Abstract: A removable device for attaching two mechanical parts includes a pin removably locking a first part with respect to a second part, a retainer member on the pin and a resiliently loaded tension member which collaborate to prevent the pin from coming out of its locked position; the removable device further includes at least two inclined surfaces, the general shape of which is that of a projection oriented in the axial direction of the pin, such that when the pin rotates, the retainer member runs along the inclined surfaces and the pin moves between the locked position and unlocked position against a force exerted on the pin along a longitudinal axial direction of the pin exerted by the tension member.

Abstract: A retaining pin assembly for an excavator tooth assembly. The retaining pin assembly has opposable locating members each having a shank portion able to be slidably insertable via a respective retaining pin aperture on opposite sides of a wear member into a transversely extending mounting aperture of a mounting nose of an excavator. Each locating member also has an enlarged inwardly convergent tapered wedge portion adjacent a normally outer end. The retaining pin assembly also has a tensionable retaining member extending between the locating members from one side of the retaining pin assembly. When tension is applied to the retaining member relative contraction of the locating members occurs to urge the wear member into engagement with the mounting nose by wedging engagement between each of the wedge portions and a rear wall of respective retaining pin apertures.

Abstract: A wear assembly includes an adapter with a nose, a wear member with a socket to receive the nose, and a lock to secure the wear member to the adapter. The nose and socket include complementary rails and grooves that vertically diverge as they extend from the front of the nose. The lock can have a tapered construction.

Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.

Abstract: A wear assembly for securing a wear member to excavating equipment that includes a base having a nose and a wear member having a socket. The nose and socket are each provided with one or more complementary stabilizing surfaces in central portions thereof.

Abstract: Detachable fastening system between a male piece (2) and a female piece (1), pin (3) and female piece (1), specifically for use in machines for moving earth and stones. It is formed by a tooth (2) with a transverse aperture, a tooth holder (2) with another transverse aperture, a pin with an intermediate nipple, and an elastic tensor (4) located in a complementary cavity of the tooth holder (2). The penetration and subsequent rotation of the pin (3) immobilizes it axially, as it is held in said angular position by the action of the tensor (4). In addition, the pin (3) has at one end a projection that interacts with a groove ramped helicoidally and fitted in the aperture of the tooth in order to absorb the axial forces, by unloading the tensor (4) thereof, and also in order to limit the angular distance travelled by the pin between the blocking and unblocking positions, and in order to facilitate possible extraction thereof.

Abstract: The invention relates to a wearing parts system (1) intended for the tool of a tilling machine of the type which comprises a holder part (3), having a front end part (8), and an exchangeable wearing and/or replacement part (2), arranged over this end part and comprising a hood-shaped (6) hollow (7) which, when the wearing part (2) is fitted in place, is designed to grip over the end part and is fixed thereto by means of at least one locking device (27) placed through interacting openings (28), the end part and the hollow having front, rear and collateral contact zones (9, 22, 23), each comprising contact faces (10, 25, 26), disposed one on the holder part and one on the wearing part, for the absorption of acting vertical, horizontal and collateral forces Fx, Fy and Fz.

Abstract: A device for connecting a wear part to a support thereof on materials handling equipment for public works machines, comprises a key placed in an axial alignment with regard to an elastically deformable sleeve placed in part of an adapter. The key has a key foot and a key head on either side and opposite ends of a body. The key head is arranged with a part forming an off-centered seat. The key foot comprises an anchoring element for temporarily penetrating into the elastically deformable sleeve. Rotation of the key causes its misalignment with regard to its initial axis and the tight securing of the key, either in the sleeve by anchoring, or against metal parts of the tooth and of the adapter on differentiated support zones.

Abstract: A hammerless connector pin assembly is insertable in the aligned connector openings in telescoped ground engaging wear and support members and is releasably lockable therein. The inserted assembly has opposite end portions that block removal of the wear member from the support member. Each of the two end portions has a laterally projecting cam member disposed thereon which is positioned within opposite ones of the two opposed wear member connector openings. As the interior surface of the wear member becomes worn from use and is able to shift further rearwardly along the support member, the cam members may simultaneously be rotationally adjusted to maintain contact with the wear member to prevent forward movement thereof away from its rearward shifted position, and then locked in their rotationally adjusted positions.

Abstract: A retainer pin assembly and tooth for an excavation tooth and adaptor assembly is provided. The retainer pin assembly can comprise at least one retainer pin section having a circular longitudinal main body with chamfered leading edges at one end for insertion into a passageway in the adaptor, and a displacement-bearing block having at least one facet disposed at the opposite end. The tooth can comprise at least one opening on a sidewall having one flat vertical bearing surface to correspond to a facet of the displacement-bearing block when a retainer pin section is inserted into the adaptor passageway. Magnets can be disposed on the chamfered ends of a pair of retainer pin sections to urge the retainer pin sections towards one another when inserted in the adaptor passageway.

Abstract: The present invention is directed to a releasable locking assembly for attaching a wear member to a support structure. It may be used with excavating equipment for attaching ground-engaging teeth to adaptors, lip shrouds to bucket lips, or other analogous uses. The wear member includes at least one pin-retainer-receiving opening in one side. The opening is tapered, being narrower at its outer surface and wider at its inner surface. The support structure includes at least one pin-receiving recess which generally aligns with the opening in the wear member when the wear member and the support structure are operatively coupled. The pin retainer is a frustoconically shaped cylinder which is threaded internally. It is inserted into the opening in the wear member. The wear member is slidably mounted onto the support structure. The pin is an elongate body which is externally threaded. It is screwed into the pin retainer by the application of torque force from a standard ratchet tool.

Abstract: The tooth and adaptor for dredging machines object of the present invention relates to a tooth or wear member which, attached to an adaptor or adaptor member, creates an assembly the purpose of which is to deepen and clean the beds of ports, rivers, channels, etc., removing therefrom sludge, stones, sand, etc., the adaptors being attached to the blades of the propellers and thus forming the cutter head of the dredging machine. The constructive features of the coupling between the tooth and the tooth bar or adaptor allow making better use of the cutting material of the tooth and a simple and quick replacement thereof in the adaptor, between other advantages.

Abstract: A hammerless connector pin assembly is insertable in the aligned connector openings in telescoped excavation wear and support members and has associated locking structure for releasably locking the inserted assembly therein. The inserted assembly has opposite end portions that block removal of the wear member from the support member. One of such end portions has a laterally projecting cam member disposed thereon which is positioned within one of the wear member openings. As the interior surface of the wear member becomes worn from use and is able to shift further rearwardly along the support member, the cam member may be rotationally adjusted to maintain contact with the wear member to prevent forward movement thereof away from its rearward shifted position.

Abstract: A lock for securing a wear part to earth-working equipment that is foldable between a retaining position to hold the wear part to the equipment and a release position that permits removal of the lock and release of the wear part from the equipment. The lock includes a retainer for releasably holding the lock in the retaining position. The retainer may comprise a threaded wedge received into a complementary threaded passage.

Abstract: A wear assembly for excavating equipment that includes a base, a wear part and an improved locking arrangement that provides improved stability, strength, durability, safety and ease of use. The locking arrangement includes a hammerless lock that is pivotally moved between hold and release positions, wherein the fulcrum is set forward of the bearing surface engaging the wear part. The lock can be manipulated by a threaded member or pry tool. The lock further includes bearing surfaces that enhance stability and reduce wear.

Abstract: A hammerless connector pin assembly is insertable in the aligned connector openings in telescoped ground engaging wear and support members and is releasably lockable therein. The inserted assembly has opposite end portions that block removal of the wear member from the support member. Each of the two end portions has a laterally projecting cam member disposed thereon which is positioned within opposite ones of the two opposed wear member connector openings. As the interior surface of the wear member becomes worn from use and is able to shift further rearwardly along the support member, the cam members may simultaneously be rotationally adjusted to maintain contact with the wear member to prevent forward movement thereof away from its rearward shifted position, and then locked in their rotationally adjusted positions.

Abstract: A lock for securing a wear part to earth-working equipment that is foldable between a retaining position to hold the wear part to the equipment and a release position that permits removal of the lock and release of the wear part from the equipment. The lock includes a retainer for releasably holding the lock in the retaining position. The retainer may comprise a threaded wedge received into a complementary threaded passage.

Abstract: A wear assembly for protecting the digging edge of a bucket which includes a wear member having a lock-receiving hole in one leg and an upstanding rib along the other leg. The rib extends axially along the leg to be received into a slot in a base fixed to the lip of the bucket. The rib has a rear end that engages the base to hold the rear end of the rib between the base and the lip. The wear member further includes an interior surface that has a front portion formed with a curve to wrap around the digging edge and a plurality of stabilizing surfaces. The lock has a latch and a threaded wedge received into the passage to move the latch to its holding position to maintain the lock in the assembly during use.

Abstract: An assembly for coupling wear parts to support tools for heavy-construction machinery includes a tooth and an adapter with a key connection. The tooth and the adapter have complementary support profiles located in different planes and disposed between respective contact and connection ends. The profiles are arranged in a symmetrically opposing manner on upper and lower faces of a nose of the adapter and the tooth.

Abstract: A ground-engaging wear member is releasably retained on an associated support structure by a specially designed hammerless C-clamp and wedge connector system extending through aligned openings in the wear member and support structure. Illustratively, the wear member is an adapter, and the support structure is a bucket lip.

Abstract: A pick locking device for a plow pick that includes a pick shank inserted into a receptor box of a pick holder. The locking device may include a retaining pin and a deformable clamp element. The retaining pin may be forced through an opening on the pick holder into a locking groove extending in a shank insert direction along one side face of the shank. The clamp element may secure the retaining pin in a locked position, and may include a first leg and a second leg positioned at an angle to each other. The first leg may be inserted into a retainer in the pick shank and the second leg may be inserted into a locking recess on the retaining pin. The second leg may include a trunnion protruding from the first leg and an annular enclosed opening that extends to a rear of the first leg.

Abstract: A retainer pin assembly and tooth for an excavation tooth and adaptor assembly is provided. The retainer pin assembly can comprise at least one retainer pin section having a circular longitudinal main body with chamfered leading edges at one end for insertion into a passageway in the adaptor, and a displacement-bearing block having at least one facet disposed at the opposite end. The tooth can comprise at least one opening on a sidewall having one flat vertical bearing surface to correspond to a facet of the displacement-bearing block when a retainer pin section is inserted into the adaptor passageway. Magnets can be disposed on the chamfered ends of a pair of retainer pin sections to urge the retainer pin sections towards one another when inserted in the adaptor passageway.

Abstract: A wear assembly that includes a wear member and a boss to define an opening for receiving a lock forward of the front edge face of the lip which can mount the wear member in a stable and balanced manner without a through-hole in the lip. The wear member includes an aperture and a rib to define bearing faces on opposite sides of a central plane of the lip. The boss includes rails to hold the wear member in place, and a brace at the rear end, which supports the rails on the boss, abuts the rear of the wear member to reduce the loading on the lip, and deflects earthen material away from the wear member under reverse loading.

Abstract: The invention relates to a tip assembly for earth moving machinery, comprising a tip (11) having a pocket (12) open at the back, said tip exhibiting a hole (16) for seating a locking key, an adapter (41) having a nose (42) that geometrically couples with said pocket (12), said nose being crossed by a seat (43) for seating the locking key, and a locking key (61) inserted in said hole in the tip and in said seat in the adapter for locking the tip to the adapter. At least one surface of the nose exhibits a lowered or recessed zone obtained around the seat for the locking key. At least the wall of the pocket facing said surface of the nose internally exhibits a relief complementary to said lowered or recessed zone. In this way, the coupling between the tip and the adapter is made stronger by the interaction between at least two respective facing surfaces.

Abstract: The present invention relates to improvements to ripper boots of the type adapted to be mounted to a bulldozer tyne for use in cleaving through hard ground. The ripper boot embodied in the present invention has particular application in opal mining where sometimes extremely hard ground is to be penetrated and ripped. The ripper boot includes a replaceable ripping tooth which is secured within the boot by way of an interference fit so that during use, it does not rotate. The interference fit prevents particular matter from entering between the walls of the tooth and the associated socket. In further forms of the invention, the replaceable ripping tooth is angled upwardly with respect to the carrier so that the angle of attack of the ripping tooth is raised so that it is almost parallel with the ground. The ripper boot provides a number of benefits including improved cleaving effect, reduced chatter and drag, reduced wear and tear, and reduced load on associated machinery.

Abstract: The connector pin assembly releasably retains telescoped excavating support and wear members in their telescoped relationship. The connector pin assembly is removably received in aligned connector openings in the members. A body portion of the assembly blocks removal of the wear member from the support member, and a lock member portion of the assembly is rotatable relative to the body, toward and away from a locking orientation, to releasably lock the body within the connector openings. A resilient sleeve having non-circular interior and exterior surfaces with rounded corners is non-slippably disposed over a rotatable shaft of the lock member in order to slidingly and deformably engage a non-circular shaped interior cavity of the body that rotatably receives shaft and sleeve of the lock member. The sleeve yieldingly resists rotational movement of the lock member away from a locking orientation.

Abstract: An assembly for coupling wear parts to support tools for heavy-construction machinery includes a tooth and an adapter with a key connection. The tooth and the adapter have complementary support profiles located in different planes and disposed between respective contact and connection ends. The profiles are arranged in a symmetrically opposing manner on upper and lower faces of a nose of the adapter and the tooth.

Abstract: Abstract A tooth and adaptor assembly (11) for use on earthmoving machinery, the assembly comprising an adaptor (21) adapted to be secured to a bucket or like component on the earthmoving machinery. The adaptor (21) comprising a nose (27) having an at least one sidewall (35) incorporating a first channel (37) and a second channel (39) angled relative to each other. The assembly (11) also a tooth (41) adapted to be received on the adaptor (41) and releasably secured thereto. The tooth comprises a socket (43) having sidewalls (53). At least one sidewall (53) incorporates a third channel (55) at an angle complementary to the second channel (39), such that when assembled the two channels (39, 55) co-operate to define an enclosure (91). An upper wall (49 of the socket (43) has at least one aperture (57) therethrough, and which is aligned with the third channel (55). The assembly (11) further comprises at least one locking mechanism (71) for locking the tooth (41) to the adaptor (21).

Abstract: A wear assembly provided with a tapered opening and a complementary tapered lock wherein the lock can be pried into and from the opening to thereby eliminate the need for hammering. The lock is formed with a body and a latch that is movable between a hold position where the latch is engageable with a stop in the opening to releaseably retain the lock in the opening and a release position where the latch disengages the stop.

Abstract: A pin assembly for releasably maintaining an adapter and replaceable part or tool of a two-part digging system in operable combination relative to each other. The pin assembly includes a pair of axially aligned retaining pins whose opposed ends are arranged in operable combination relative to each other. Each retaining pin has an enlarged head portion configured to fit within one of the openings defined by the tool, and a shank portion. An axially arranged and rotatable fastener maintains the opposed distal ends of the pins in releasably secured relation relative to each other. A method for releasably maintaining the digging tooth/tool and adapter is operable combination is also disclosed.

Abstract: A wear assembly for attaching a wear member to a support structure that includes a wear member and a lock. The wear member includes a pair of legs to straddle the support structure, each with a hole that aligns with a hole in the support structure for receiving a lock to hold the wear member in place. Each hole includes a recess with an engagement surface facing generally away from the support structure for receiving portions of the lock. The lock includes a wedge provided with a thread formation that threadedly engages a second thread formation in the aligned holes so that rotation of the wedge axially drives the wedge.

Abstract: An attachment system for connecting a first member such as a lip plate (12) of a mechanical digging device to a second member such as a ground engaging tool (10). The first member has a lug portion (22) attached thereto the second member has a recess (50) arranged, in use, about the lug portion. A clamping member (60) is disposed between the lug portion (22) and the second member (10) such that the supply of pressure to the clamping member (60) acts to restrain disengagement of the second member (10) from the lug portion (22).

Abstract: A securing arrangement for a tool (7) of an agricultural tillage implement of a type having a tapered interconnection between a socket (5) on the tool and an adaptor piece (3) adapted for mounting onto a tine (1) of the tillage implement. The adaptor piece (3) has a recess (9) which can be an aperture or a pair of transverse arcuate slots (31) for receiving a retaining pin(11). The socket (5) on the tool has notches (15) on its opposed sides and a portion (13) on the retaining pin in use engages into at least one of the notches (15) to prevent disengagement of the socket (5) from the adaptor piece (3). The adaptor piece can be integral with the tine.

Abstract: A lock that includes a wedge that is used to releasably secure separable components of an assembly together. The wedge can be used with a spool. The wedge and spool are threadedly coupled together to drive the wedge into and out of an opening in the assembly without hammering or prying. The direct coupling of the wedge and spool eliminates the need for bolts, washers, nuts and other hardware so as to minimize the number of parts. As a result, the lock is inexpensive to make, easy to use, and unlikely to become inoperative because of lost or broken parts or due to fines or other difficulties encountered in harsh digging environments. Further, the wedge can be driven into the assembly to provide the degree of tightness necessary for the intended operation and/or to re-tighten the assembly after incurring wear during use. A latch assembly is preferably provided to securely hold the wedge in place and avoid an undesired loss of parts during use.

Abstract: A device for coupling a tooth and tooth-carrier. The device including three successive areas from the median portion of a coupling part to its free end. A first area comprises stepped straight guides that open on lateral outer surfaces of the coupling part. Following the first area is a second guiding area comprising revolution surfaces, opposed to one another. A third, terminal area is shaped as a prismatic rod having its axis coinciding with that of the coupling part.

Abstract: Telescoped excavating support and wear members are releasably retained in their telescoped relationship by a connector pin assembly removably received in aligned connector openings in the members. A body portion of the pin assembly blocks removal of the wear member from the support member, and a lock member portion of the assembly is rotatable relative to the body, toward and away from a locking orientation, to releasably lock the body within the connector openings. A resilient detent member carried by the lock member slidingly and deformably engages a polygonally shaped interior side surface section of a body passage that rotatably receives the lock member, the detent member yieldingly resisting rotational movement of the lock member away from its locking orientation.