Abstract: The invention provides an improved adjustable hydraulic apparatus of the type having a hollow piston rod operably associated with a damping piston means which divides the interior of a cylinder member into first and second halves filled with damping fluid. At least one throttle means is operably associated with the damping piston means. The hollow piston rod includes a traverse bore disposed above the damping piston means for the constant passage of damping fluid therethrough. An axially displaceable tension rod is disposed within the interior of the hollow piston rod and is operably associated with an adjusting device. The improvement to the damper apparatus, according to this invention, provides an annular gap defined by the tension rod in combination with the inner surface of the hollow piston rod, which functions as a throttle restriction.
Abstract: A stabilizing mechanism and a method of mounting the stabilizing mechanism are provided. The stabilizing mechanism is supported on modified overload stops which are mounted onto the truck frame through mounting holes drilled by the truck's manufacture and intended as mountings for conventional overload stops; in addition, linkages fixedly coupled to the longitudinal ends of the torsion bar directly couple each end of the torsion bar to one of the leaf springs of the truck frame. Differential compression of the leaf springs twists the torsion bar which produces a reactive torque at the longitudinal ends of the torsion bar. In response to this reactive torque, the linkages fixedly coupled to the torsion bar transfer the torque to a linear force which opposes the differential compression of the leaf springs.
Abstract: An automatic slack adjuster (60) employs a drive member (22) having a helical groove (28) into which a pin (42) extends from a fixed frame (10) to transfer a rotational torque to a reaction member (30) secured to an adjustment nut member (12) for rotating and enabling nut member (12) upon application of the brake to advance a thrust member (2) threadingly engaged with nut member (12) a distance sufficient to maintain a substantially constant clearance between a frictional layer (5) and a surface (6) to be braked. An engagement means such as frictional layer (33) is disposed between drive member (22) and reaction member (30) and groove 28 is provided with an inclination angle (.theta.) such that the combination enables slippage to occur between members (22) and (30) upon engagement between surface (6) and frictional layer (5).
Abstract: The invention concerns a pad and torque support assembly for a disc brake. The pad incorporates a first pair of twin surfaces (54) formed on the torque support (10) and a second pair of surfaces for anchoring and for sliding (56) radially offset from the first pair and cooperating with a second pair of twin surfaces (58) formed in the torque support, allowing a circumferential offset between two pads of the same brake.
Abstract: In a cylinder piston device two working chambers on both sides of a piston are interconnected by a fluid passage. This fluid passage includes in series a first passage section and a second passage section. The first passage section comprises a first bore and a second bore in parallel. The first bore is always open. The second bore is opened and closed by a throttling valve body in response to the direction of axial movement of the piston. The second passage section is opened or closed selectively by a closure body controlled from outside the cylinder.
Abstract: A front brake apparatus in a motorized three-wheeled vehicle of the type that a wheel hub supported rotatably on a front wheel axle is provided with a brake drum fixed thereto. A brake panel fixed to the front wheel axle is so provided as to be positioned axially outside the brake drum. The brake panel is provided with brake shoes arranged to be brought into internal contact with the brake drum. The invention is characterized in that the brake panel is provided with a drum cover which extends to cover a surrounding portion of the brake drum and serves to tightly seal the surrounding portion through a seal member. The seal member is positioned in an inside space defined by a wheel rim attached to the wheel hub.
Abstract: A duo-servo brake comprising a pair of arcuate brake shoes within a brake drum, automatic operating means being located between opposed shoe ends for adjusting the clearance between shoes and drum characterized by the provision of a pair of pivotable adjuster plates having pawls each pawl being engageable with a ratchet toothed adjuster wheel whereby when the shoes are moved by drag from the drum upon brake actuation the automatically operated means enables pivotable movement of one or other adjuster plate to cause its pawl to ride over a ratchet wheel tooth, springs subsequently causing the wheel to rotate a screw-threaded means to automatically adjust the clearance between one or other of the shoes and the drum.
Abstract: An automatic wheelchair brake is provided which automatically locks both wheels when a patient attempts to rise from the wheelchair. While seated the patient manually operates a three-way lever brake with manually locked, manually unlocked and automatic positions. If the patient attempts to rise while the brake lever is in the manually unlocked position, the lever automatically returns to the automatic position and both wheels still lock automatically. After the patient has exited, the wheelchair may easily be moved by shifting the operating lever to the manual unlock position.
Abstract: A slack adjuster for vehicle brakes is adapted to be mounted between the brake chamber and the brake operating shaft. The slack adjuster includes a body and a drive member movable relative to and positioned by the body on the brake operating shaft. A lever arm is pivoted to the body and there is an adjustable connection between the lever arm and drive member for the sensing and take up of slack during a brake application. The adjustable connection includes a clutch having facing and relatively rotatable clutch surfaces, each of which has opposing cooperating ratchet teeth. The teeth on one of said surfaces are separated into a plurality of radially spaced circumferential bands. The teeth in each band are positioned to independently engage the teeth on the opposing clutch face to provide increments of slack adjustment.
Abstract: A brake actuator shaft has a clutch on an inner end which drives a splined sleeve. The splined sleeve engages an inner projection to turn one piston part on another piston part and to effectively lengthen the piston part. When the shaft is turned by a brake lever, it operates an actuator which presses on the piston part and inward projection and which prevents further relative rotation of the piston parts, causing the clutch to slip. A gear on an outer surface of the rotating portion of the piston engages a pinion connected to a manual adjuster. A ratchet in the manual adjuster prevents rotation of the pinion and the gear in the piston shortening direction.
Abstract: A vibration isolator (1) with two degrees of freedom works according to the nti-resonance principle. The vibration isolator is arranged, for example, between a first body, such as a helicopter frame 13, and a second vibration generating body such as a rotor-transmission unit 12 vibrating at a predominant frequency. A spring arrangement (2) is connected to the attachment points (14, 15) for the first and second bodies. The spring arrangement works in conjunction with a pendulum rod (3) which is attached to the two bodies (12, 13) by spherical pivot bearings (5, 10). The vibration isolator has a compact construction and a low characteristic damping since the spring arrangement includes several relatively small semi-circular or spiral-shaped wound leaf springs (7-1 to 7-4) which extend between an inner ring (4) and an outer ring (6). The pendulum rod is held in a spherical pivot bearing (5) in the inner ring, and a further spherical pivot bearing (10) is connected by a flange (9) to the outer ring.
August 2, 1985
Date of Patent:
October 28, 1986
Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung
Abstract: An apparatus for accumulating and delivering paper sheets for use with a bank note dispenser including a paddle wheel for receiving paper sheets among swirling paddles provided on the paddle wheel and supporting the paper sheets thereon, a scraper for scraping the paper sheets away from the swirling paddles, an alignment plate for aligning the paper sheets above the paddle wheel, and lower and upper delivering rollers for cooperating to deliver, at one time the accumulated paper sheets as a whole in a horizontal direction. The two lower delivery rollers, are raised upwardly to horizontally support the accumulated paper sheets and are rotatably driven to deliver the paper sheets. The two upper delivery rollers are lowered to resiliently clamp the paper sheets between the lower rollers and upper rollers and are rotatably driven to deliver the paper sheets.
Abstract: A heavy duty chock, for use in preventing the movement of wheeled vehicles, particularly commercial or military aircraft, is triangular, preferably equitriangular in cross-section, has a longitudinal axis, and is divided transverse to its longitudinal axis into a number of triangular sections. The clock has an end section at each end thereof and a number of central sections located between the end sections. Each central section defines at least one space extending longitudinally therethrough. The end and central sections are formed from an elastomeric material which is a synthetic rubber, a natural rubber or a mixture thereof. The chock comprises clamping member, such as a flared hollow pipe, for holding the sections with adjacent triangular faces in tight abutment, and an interlock, such as co-operating abutments and recesses, for preventing relative rotational movement between adjacent sections about the longitudinal axis.
Abstract: A disc brake in which a caliper body (3) is movable relative to a support (2) in the direction of the axis of the disc so as to locate itself on the disc. For this purpose the disc brake includes guide means (6) between the caliper body (3) and the support (2) including a pin (16) fixed to the support about which the caliper body is rotatable as well as two stop shoulders (27, 28) provided in the support and engageable with the caliper body to retain it angularly between them. Dual purpose gudgeon pin bolts (39,42 and 40, 43) not only exert a gripping force on the caliper body but also cooperate with end hook portions (41) of the respective pads on opposite sides of the disc to retain the pads in the caliper body against drag from braking.
Abstract: A sliding caliper disc brake including an anchor bracket adapted to be mounted in a fixed relation to a motor vehicle, the anchor bracket having a pair of facing slideways arranged substantially parallel to the axis of a disc with which the brake is to be used, inboard and outboard friction pads adapted to be brought into frictional contact with opposite faces of the disc, each pad being attached to a backing plate and each backing plate terminating at each end in an abutment portion slidable in one of said slideways and a caliper housing including at its inboard end a cylinder in which a piston is slidable, the piston being attached to the backing plate of the inboard pad, a bridge portion extending outwardly and having at its outboard end, attachment means attached to the backing plate of the outboard friction pad, the arrangement being such that on operation of the brakes, sliding motion of the backing plates is guided by the slideways on the anchor plate, wherein the shape of the slideways and the abutmen
Abstract: A hydraulically damped elastic engine mounting having a ring-shaped rubber spring member which takes up static and dynamic loads and is equipped with a damping disk immersed in a damping fluid in order to provide hydraulic damping. The damping disk is movably mounted with axial play between spherical or conical buffer surfaces, and is provided in the vicinity of the buffer surfaces with passages through which the damping fluid can flow. The free path of the disk governs the damping applied, and at the same time prevents undesirable impact noise by the special design of the parts which move in relation to each other. Moreover, the damping disk may be constructed in such a way that interfering cavitation phenomena produced in the two surfaces are suppressed. This ensures that the damping device is fully effective in all vibration ranges and under all conditions occurring while the vehicle is being driven.
Abstract: A spring core comprises a plurality of coil springs 10 each made of a single, continuous piece of wire having two open ended final windings 11 which are approximately U-shaped. The coil springs are held together by spiral shaped connecting elements 30 enclosing the straight lateral arms 12, 13 of the final windings.
Abstract: A disc brake assembly (10) includes a caliper (22) movably supported by a torque member (36). The caliper (22) and torque member (36) each have lateral recesses (44, 46, 48, 50) defining axially extending apertures (52, 54) between the caliper (22) and torque member (36), with a pair of wedge-shaped members (66, 68) disposed in each aperture to maintain the caliper in radial and circumferential position relative to the torque member while allowing lateral movement therebetween. The wedge-shaped members (66, 68) are biased inwardly by an improved dual purpose spring member (72) which traverses a portion of the exterior perimeter of the torque member (36) and engages the ends of the respective pins.
Abstract: A hydraulic snubber suitable for a skidding grapple or the like in which a twisted figure eight housing is provided to oppose free swinging in two mutually perpendicular horizontal directions, each portion of the figure eight body having a cylinder housing a rotor with each rotor and cylinder having radially extending vanes equipped with flexible, orifice equipped vane extensions.
Abstract: A sliding caliper disc brake has a fixed carrier carrying directly and indirectly actuated pads. A caliper is slidably mounted on the carrier and carries brake actuators. The backing plates of the pads are provided with ribs for engagement in corresponding grooves in the carrier and arranged to provide additional support for the caliper, in use, in the vertical direction.