Abstract: A planetary gearbox includes a ring gear accommodated in a housing part, the ring gear particularly has on its radially outer surface, in particular its radially outer side, an annular groove, the annular groove, in particular a circumferential annular groove in the circumferential direction, and a spring element is accommodated in the annular groove, which projects at least partially into an annular groove introduced into the housing part.

Abstract: An improved bit retainer having a retainer body that includes an arcuate top portion defining a radially expandable area. The bit retainer including a pair of opposed arcuate legs depending from the arcuate top portion, the pair of opposed arcuate legs having a radial cross-section greater than the radial cross-section of the radially expandable area. Each leg includes a cavity adjacent a distal end of the leg. The bit retainer adapted to engage an annular groove of a shank of a pick or unitary bit/holder when the bit is inserted into a bore of a base block and retain the bit within the bore of the base block. A first embodiment of the bit retainer having a flat side profile and a second embodiment of the bit retainer having a curved side profile.

Abstract: A gap adjustment member includes a main body and an outward protrusion. The main body portion has a diameter less than or equal to the diameter of a mounting hole. The outward protrusion protrudes outwardly on an outer perimeter surface of the main body portion, the number of the protrusions being less than or equal to the number of recessed grooves. A diameter of a circumscribing circle, which circumscribes the main body portion and passes a projecting end of the protrusion, and a crossing point, in which a line that passes the projecting end and a center of the main body portion intersects the outer perimeter surface of the main body portion, and which is a crossing point on the opposite side of the projecting end, is configured to be greater than the diameter of the mounting hole and less than or equal to the diameter of an annular groove.

Abstract: A lockable anti-fall catch connector includes a catch member, a locking shaft, and a locker unit. The catch member includes a retention arm and two sleeve members provided at two ends of the retention arm, wherein a first locking portion is provided at one of the sleeve members. The locking shaft is slidably extended between the sleeve members, wherein the locking shaft has a second locking portion detachably coupled with the first locking portion to lock up the locking shaft at the retention arm. The locker unit includes a locking element slidably coupled at one of the sleeve members to engage with the locking shaft, wherein after said locking element is disengaged with the locking shaft, the locking shaft is actuated to disengage the second locking portion with the first locking portion in order to slide the locking shaft with respect to the catch member.

Abstract: There is provided a ratchet-type tensioner whose spring stopping washer for seating a ratchet biasing spring is rigidly and readily assembled to a ratchet-receiving hole so as not to fall out of the ratchet-receiving hole and which reduces flapping noise and prevents seizure of the plunger by securely and stably operating a ratchet mechanism in operating an engine. The ratchet-type tensioner 100 is arranged so that the spring stopping washer has a C-ring anchored in the rear-end area of the ratchet-receiving hole by fitting in a diameter-reduced state and by enlarging its diameter within an anchoring circumferential groove of the ratchet-receiving hole and a spring stopping piece extended from the C-ring to a ring center area to seat the ratchet biasing spring.

Abstract: Provided is simple construction, in a mechanical apparatus such as a rack and pinion steering gear unit, for fastening a bearing that supports thrust loads to a member of the mechanical apparatus using a tapered snap ring, such that there is high rigidity against thrust loads. With the outer ring 17 of the bearing 15 positioned with respect to the housing 11a so that the axial length L27 between the circumferential edge of the axial one side surface 32a of the locking groove 27 and the axial one side surface 34 of the outer ring 17 is less than the maximum thickness T28a of the tapered snap ring 28a, the tapered snap ring 28a is locked into the locking groove 27. The gap 35 is provided between the axial other side surface 31 of the tapered snap ring 28a and the axial other side surface 33 of the locking groove 33.

Abstract: A structure of assembling a plastic locking device with a surface material includes a plastic locking device. A surface material forms holes. The plastic locking device is placed to have through-holes defined therein overlapping the holes of the surface material. Rivet fastener elements are respectively put through the through-holes of the plastic locking device and the holes of the surface material to be subjected to a riveting and fixing operation. The rivet fastener element includes a male button that is made of zinc and forms a pillar and a female button that is made of zinc and forms a hollow tube. Pressurizing equipment is used to couple the pillar and the hollow tube through interference fitting between the pillar and an inner wall of the hollow tube. Locking blocks are formed on the inner wall of the hollow tube to provide a tight interference fitting with respect to the pillar.

Abstract: A heat sink assembly for dissipating heat from an electronic component (12) mounted on a printed circuit board (10) includes a heat sink (20) resting on the electronic component, and a fastener assembly (30) for securing the heat sink to the electronic component. The fastener assembly includes a hollow post (36) having a threaded hole (360) defined therein, a screw (32) threadedly engaged in the threaded hole, a coil spring (34) compressibly disposed between the heat sink and a top portion of the screw, and a latch (38) pivotably engaging with a bottom portion of the post. When the screw moves downwardly towards the printed circuit board, the latch is pushed by the screw to rotate and press the heat sink towards the printed circuit board, thus securing the heat sink to the electronic component.

Abstract: An arrangement for axially supporting two jointly rotating components (2, 3) by way of a snap ring (6) having two displaceable impacting ends (6a, 6b), which are separated from each other by a peripheral gap (7), and which can move in the region of a radial spring path. The snap ring (6) is inserted into an annular groove of the supporting component (2). The supporting component (3) comprises one ramp (8, 9) in the region of the radial spring path of the impacting ends (6a, 6b) of the snap ring (6).

Abstract: A universal joint includes a yoke with a leg having an aperture extending therethrough. The aperture includes an annular groove. The universal joint also includes a cruciform having a trunnion, a bearing cup positioned in the aperture and mounted on the trunnion and a retention member including a stepped cross-section. The retention member is disposed within the groove to fill the gap remaining between the groove edge and the bearing cup.

Abstract: A fastener assembly including a base consisting of a pair of motherboard snaps on a first end and a hollow shaft on a second end, the motherboard snaps to be inserted through an aperture of a motherboard. The hollow shaft is inserted through an aperture of a heat sink clip. The base further includes a pair of grooves on an exterior of the shaft. The assembly further including a cap consisting of a hollow interior, an integrated post attached to a base of the interior, and a pair of cantilever snaps. The cap is fitted over the exterior surface of the hollow shaft of the base to secure the clip between the base and the cap. The integrated post of the cap to be inserted into the hollow shaft of the base to deflect the motherboard snaps outward on an opposite side of the motherboard aperture to secure the assembly with the motherboard. The cantilever snaps to be positioned in the grooves of the shaft of the base to secure the cap with the base.

Abstract: A snap ring for shafts or bores is proposed, which is able to be axially fixed in position by snapping into place in a circumferential groove. The snap ring is provided with a centering ring which, when the case of the snap ring is installed in the circumferential groove, extends with radial clearance to an annular clip of the snap ring, which is disposed approximately concentrically to the circumferential groove.

Abstract: The invention relates to slotted fastening ring for making a formfitting connection by compressing or expanding, respectively, the slotted fastening ring during installation or removal, respectively. It is provided that the fastening ring (1) is made from an essentially non-resilient cold-formable material (3) and that the ring tips (10, 11) between which the slot (9) is formed, are spaced apart--when the fastening ring (1) is not installed--such as to be capable--for the purpose of installing the ring (1)--of being bent towards each other under plastic deformation, so that the fastening ring (1) attains a closed position, with the inside opening (7) of the ring taking on a circular or a substantially circular contour (8).

Abstract: A securing ring, includes a body defining a ring opening and having a circumference of substantially circular configuration at formation of a slotted gap to define confronting ring ends. The body defines a ring plane and an axis of symmetry and has a radial width which continuously increases, at least in sections, from the ring ends onwards at both sides of the axis of symmetry. Each of the ring ends has a L-shaped configuration and is extended by a lug jutting out from the ring plane and formed with a throughbore. Both lugs of the ring ends are positioned on a same side of the ring plane, with the throughbores of the lugs extending in parallel relationship to one another and to the ring plane.

Abstract: A locked pipe joint between a socket (3) of a first pipe (4), and a smooth end (1) of a second pipe (2) inserted in the socket with the interposition of an annular sealing gasket (5). The joint includes a raised bead (6) integral with the smooth end, a split metal retaining ring (7), and a rear support surface (9) for the split ring. The split ring includes a series of indentations (19) on the circumference of at least one face (16), in which the indentations are configured to allow the necessary diametric contraction of the ring by the crossing of its ends, and the subsequent expansion of the ring to lock the joint.

Abstract: A ring fastener, with a circular configuration in the rest condition, comprising two ring ends (11, 12) spaced from each other, an essentially constant cross-section over at least 150.degree. of its circumference, and in the area of each ring end (11, 12) a recess (13, 14) opening toward its inner circumference, enables an easy installation. A special apparatus enables a particularly effective installation of the ring fastener in very confined conditions.

Abstract: A hub unit comprises a wheel bearing and a driving axle stub which is situated in a correspondingly shaped, concentric opening in the rotatable ring of the wheel bearing, and in the direction of rotation interacts by unround shapes with the ring which driving axle stub has an axle end projecting from the opening in the ring. The axle end interacts with the inner periphery of a cup spring whose outer periphery is supported under pre-tension on the ring. The cup spring is accommodated in a peripheral groove provided in the axle end.

Abstract: In an arrangement (1) comprising a shaft and a part having a hub (57) mounted on the shaft and comprising at least one tubular portion to be clamped onto the shaft, and a clamping member, which can be mounted on said tubular member (72, 73) comprises three inwardly directed clamping zones which are equispaced at angles of 120.degree. from one another and which are each movable in a radial direction. The clamping member and its three clamping zones are situated at the same level perpendicular to the shaft and the clamping member is constructed to be elastically deformable in radial directions and in addition comprises three application zones for an expansion device (150), which application zones are also equispaced at angles of 120.degree. from one another and are each movable in a radial direction.

Abstract: A split resilient retainng ring (100) is provided that features corresponding slots (14,16) that extend circumferentially away from each other in substantial parallel relationship to the inner periphery (4) and outer periphery (6) of the ring's body portion (2) and that end in apertures (18 and (20) respectively that have a breadth greater than the width of slots (14,16). The slots (14,16) and apertures (18,20) enable fingers (22,22') of a manipulating tool (24) to be inserted thereinto and move circumferentially away from each other along slots (14) and (16) and into apertures (18) and (20) for radially expanding and contracting ring (100) for seating in a groove. A cutting tool (800) is also provided for cutting the profiled trapezoidal configuration providing slot (14) and aperture (18) facing slot (16) and aperture (20) across the split between opposed ends (10) and (12) of ring (100).

Abstract: A wobble plate compressor includes a non-rotary socket plate mounted on a journal of a rotary drive plate. The drive plate includes a bushing and a needle-type thrust bearing to accommodate relative rotary movement between the plates. The socket plate and drive plate are retained together by an assembly including a square-edged annular channel formed in a recessed journal, a thrust washer for engaging the journal and the bushing and a dished retaining ring. The dished retaining ring also includes square edges mating with the adjacent sides of the channel. The retaining ring engages the thrust washer so as to provide a preload force to seat the washer on the journal and for biasing the socket plate against the thrust bearing. The retaining ring is characterized by a three degree dish angle when compressed between two flat parallel surfaces with an applied load of 30N.

Abstract: A clip to clip independently rotatable parts that must be axially held relative to each other, but not be constrained from sliding axially together. Each part (9, 10) has a bore and an internal annular groove (28) and the clip has transverse flanges (23, 24) that spring out and enter the grooves when the bores are aligned. The clip has a gap so that the cross-section can be changed considerably by gripping holes in the flanges with long-nosed pliars, or other gripping tool, that can enter the internal bores, address the clip to the grooves, and release the clip to enter the grooves. The tool is also used to remove the clip for dissembling the parts. Thus the parts, e.g. mainshaft gears, that have to be slide each way to engage respective dogs, can be replaced individually - in contrast to existing gear-pairs which tend to be unseparable without destruction of the clip (and usually of both gears).

Abstract: Disclosed herein is a marine propulsion device comprising an internal combustion engine, a lower unit including a rotatably mounted propeller shaft drivingly connected to the internal combustion engine and a propeller mounted on the propeller shaft, the lower unit further including a gearcase housing having an interior groove and a locating shoulder, a propeller shaft bearing housing within the gearcase housing engaging the locating shoulder, a beveled retaining ring received in the interior groove and engaging the propeller shaft bearing housing to bias the propeller shaft bearing housing against the locating shoulder, and a locking mechanism for preventing rotation of the propeller shaft bearing housing relative to the gearcase housing and for preventing disengagement of the beveled retaining ring from the interior groove.

Abstract: A reusable retainer includes a multi-layered generally annular assembly defining a central opening formed therethrough. The assembly is composed of at least one relatively resilient layer and at least one relatively rigid layer with the said rigid layer being split to allow the assembly to radially expand or bend.

Abstract: A retaining ring includes a hole in one end and a slot in the other end for use in determining the orientation of the ring. Such orientation is accomplished by randomly placing a plurality of such rings on a rail for similarly shaped member and advancing the rings along the rail until the holes or slots in the rings pass over a sorting rod. The rings with the holes engaged by the sorting rod are supported by the rod for transfer to another station such as another rail where a stack of the rings may be taped together. The rings with the slots engaged by the sorting rod with fall off the sorting rod in a controlled manner, and may be transferred onto another rail or other suitable support for orienting the other rings in the opposite direction to those which remained on the sorting rod for securing together in stacked relation similar to the rod oriented rings.

Abstract: A ball valve for medium and low pressure service includes a valve body, a valve member positioned in the valve body, circlips attached to the valve body, and provided at the upstream side and downstream side of the valve member, and sealing members provided between respective of the circlips and the valve member. The circlips are urged toward the valve member via the sealing members and are kept in a floating state. The valve member is of spherical shape, having a first and a second fluid passage holes and a valve stem groove and does not include a seam.

Abstract: A drum brake spider assembly (100) for an expanding shoe drum brake (10) having a removable anchor pin (18) is provided. A spider member (14) is provided with an anchor pin receiving bore (39) in which the anchor pin is removably received. The anchor pin receiving bore is provided with a first counterbore (114) at the inboard end thereof and a second counterbore (118) at the outboard end thereof. The anchor pin is provided with two annular grooves (122 and 124) in which are received first and second snap rings (128 and 130). The diameter (116) of the first counterbore is smaller than the outer diameter of the first snap ring when the snap ring is radially expanded sufficiently to remove same from the first groove in the anchor pin.

Abstract: A lock washer for use with spring type retainer rings such as snap rings, axially coiled springs, and the like, which are adapted to be mounted in a spring-retained holding position upon a shaft or other cylindrical member within a circumferentially extending groove or back of a retaining shoulder, but which may be deformed in a generally radially outward direction to a released position with respect to the groove or shoulder. The lock washer comprises an annular body portion which is adapted for axial face engagement mounting with an associated retainer ring, and is fabricated to provide a plurality of integral bendable peripheral tabs which are bendable over peripheral edge portions of the retainer ring to form radial holding abutments for opposing deformation of the retaining ring to a released position. The bent tabs also serve to axially secure the retaining ring and the associated lock washer against axial separation.

Abstract: A snap ring is attachable to and detachable from a bolt with ease, the snap ring having a twisted part that enables the snap ring to extend around portions of two adjacent convolutions of the thread, the snap ring also having a split to enable portions of the snap ring to pass from one convolution to an adjacent convolution over the crest of a thread to thereby prevent the nut from coming off the bolt.

Abstract: A pin locking assembly for a shackle or the like wherein a pin is non-rotatably mounted in a member and is equipped with a plate rotatably mounted on one pin end for movement between removable and non-removable positions, and removable lock means releasably fixing the plate in non-removable position relative to the pin.

Abstract: A split beveled retaining ring and method for constructing the same is characterized by a beveled groove seating flange being formed by bending the radially inner or outer edge portion of a split ring body at an angle to the plane of the ring body. The part abutment surface of the ring body may be maintained in substantially the same plane as the terminal portion of the bent beveled flange either by indenting the ring body to form a new part abutment surface or by bending the groove seating flange twice in opposite directions.

Abstract: A snap ring consists of four plane rings with a gap for the possibility of radially deforming said rings within the limits of flexibility of the material. Two rings are set as inner rings and two outer rings are set as outer rings axially of the inner rings whereby the rings are axially behind each other fastened relatively to each other around a common axis. However the gaps of the inner rings are showing in another direction than the gaps of the outer rings whereby the outer rings are radially closing the gaps of the inner rings and vice versa. One of the snaprings can be utilized as an outer snapring to hold a cylindrical part therein and another of the snaprings can be an inner snapring for holding itself or a part in a cylinder or bore.