Abstract: A frame type tractor having an engine mounted in a front region of a main frame extending longitudinally of a tractor body, and a transmission case mounted in a rear region of the main frame. A backhoe mounting frame is attached to a rear end of the main frame. Rollover protection system mounts are arranged in upper positions of the backhoe mounting frame for fixedly supporting a rollover protection system. The backhoe mounting frame has a frame structure defining an inside space therein and including a pair of right and left side walls, a top wall interconnecting upper ends of the side walls, and a bottom wall interconnecting lower ends of the side walls. The right and left side walls have the rollover protection system mounts and backhoe attaching portions for engaging and connecting a backhoe unit.

Abstract: A wheel and final drive assembly for a work machine, such as a mining truck, having a driven rotatable wheel having inboard and outboard rims mounted thereto. The final drive assembly including a first and a second reduction gear assembly. A ring gear adapter having an inboard end, an outboard end, and an inner surface, a plurality of teeth disposed about said inner surface and interacting with a plurality of planetary gears of the first and second gear reduction assemblies and said inboard end of said ring gear adapter removably coupled to said outboard flange of said wheel.

Abstract: An improved seismic method comprises the steps of generating seismic waves by exploding an explosive device in a subterranean formation, wherein the explosive device comprises a plurality of explosive elements whereby there is a time delay between the detonations of the individual explosive elements, and detecting the seismic waves and/or reflections thereof with seismic detectors. Also disclosed are geophysical survey systems that comprise a seismic energy source comprising an explosive device that comprises a plurality of explosive elements, the seismic energy source being located in a subterranean formation, and a plurality of seismic detectors that are adapted to detect seismic waves and/or reflections generated when the seismic energy source explodes.

Abstract: A soundproof cover includes a sealing layer, a sound insulation layer, and a vibration inhibition layer. The sound insulation layer has a peripheral portion, is to be disposed so as to contact at least the peripheral portion with a noise source, and exhibits elasticity. The sound insulation layer is formed as a hard plate shape, has an installation portion to be fastened to the noise source, and is disposed so as to cover the sealing layer. The vibration inhibition layer is disposed on at least a part of an interface between the sealing layer and the sound insulation layer so as to adhere to the sound insulation layer, and inhibits the sound insulation layer from vibrating.

Abstract: A safety harness to be worn by a person includes a strap portion for extending over a portion of the person's body to retain the person within the safety harness. At least a section of the strap portion includes an outer shell of a high strength, flexible material. The outer shell has a channel therein. The outer shell can, for example, have a tubular construction. The strap portion further includes a flexible inner member within the channel of the outer shell. The flexible inner member generally prevents the lateral edges of the strap portion from forming a sharp edge when under tension. In that regard, the lateral edges of the strap portion preferably remain blunted, arced or rounded rather than forming a sharp edge when the strap portion is under tension forces experienced in normal use of the safety harness. The rounded or blunted lateral edges of the strap portion of the present invention reduce or eliminate the binding, pinching and chaffing common with currently available safety harnesses.

Abstract: Scaffolding (10) having safety features for coupling scaffolding structural members so as to prevent equipment damage and worker injury from inadvertent disassembly, while permitting quick assembly and disassembly when desired. The scaffolding (10) incorporating the safety features broadly comprises legs (12); beams (14); a platform (16); coupling braces (18); platform pins (20); and platform clips (22). The first safety feature is a rounded, spring-biased, rotation-limited G-pin for adjustably coupling the beams (14) with the legs (12). The G-pin's rounded shape and a perpendicularly projecting stop (51) minimize risks of inadvertent removal. The second feature is a lockable pin (44) operable to independently couple structural members (12,14) in the event the G-pin is inadvertently removed. The third and fourth features are platform pins (20) and spring-biased platform clips (22) operable to prevent, respectively, undesirable horizontal and vertical movement of the platform (16).

Abstract: Scaffolding (10) having safety features for coupling scaffolding structural members so as to prevent equipment damage and worker injury from inadvertent disassembly, while permitting quick assembly and disassembly when desired. The scaffolding (10) incorporating the safety features broadly comprises legs (12); beams (14); a platform (16); coupling braces (18); platform pins (20); and platform clips (22). The first safety feature is a rounded, spring-biased, rotation-limited G-pin for adjustably coupling the beams (14) with the legs (12). The G-pin's rounded shape and a perpendicularly projecting stop (51) minimize risks of inadvertent removal. The second feature is a lockable pin (44) operable to independently couple structural members (12, 14) in the event the G-pin is inadvertently removed. The third and fourth features are platform pins (20) and spring-biased platform clips (22) operable to prevent, respectively, undesirable horizontal and vertical movement of the platform (16).

Abstract: The present invention provides devices and methods for securing a tool to a scaffold wherein the device comprises a base having a front side and a back side; an attachment apparatus affixed to the back side for attaching the base to a scaffold; and a holding device connected to the front side and able to accept a tool.

Abstract: The tracks of a railroad yard system have an access track and a plurality of switches leading to a plurality of yard tracks are lubricated by a lubricating station positioned on the access track. In addition to lubricating the tracks, lubrication nozzles are directed at the switch plates and switch points of the switches of the system. Detectors are positioned on the yard tracks to determine the speed of the cars as they roll down track and into the yard, and a computer, responsive to these detectors, control the discharge of lubricant by the lubricating station. Detectors are also positioned near each switch plate to detect when each switch plate moves, and a dispensing system dispense lubricant through the nozzle directed toward a switch plate whenever the switch plate is moved.

Abstract: A lubrication system is provided for use with a bearing including an outer race, an inner race, and bearing elements disposed therebetween. Rotation of the bearing and a shaft journaled thereby induces air movement having a first air velocity and a path adjacent the bearing. The lubrication system includes a structure providing a passageway through which a lubricant entrained in gas is delivered at a second velocity to the bearing. The lubrication system further includes a flow modifier disposed relative to the bearing and the structure to modify the first air velocity to promote movement of the lubricant into the bearing.

Abstract: An oil pickup apparatus for a hermetic compressor connected with a crank shaft in order to pickup an oil filled up in a lower part of a shell, comprising an oil pickup tube having one end immersed in the oil and being connected with the crank shaft to be rotated together, and the oil pickup tube having an impeller portion integrally formed at the oil pickup tube in order to pickup the oil by a centrifugal force when the crank shaft rotates and supply the oil to an upper part of the compressor.

Abstract: In an oil-lubricated helium compressor unit, the adsorber can retain all of the oil that might be transferred from the compressor to the adsorber before the system shuts down. No oil is ever transferred or transferable to, for example, the expander in a GM type refrigeration system connected to the unit. The compressor itself will shut down because of a protective switch or seize for lack of oil before any oil carries outside the compressor unit. The unit and the connected refrigeration system can run for more than a selected design life before the compressor shuts down because the limit of oil in the adsorber has been reached. The adsorber can retain as much oil as might leave the compressor over the life of the system plus a safety margin of at least 25%. The adsorber need not be serviced or replaced for the life of the system.

Abstract: An emergency moving device of an elevator includes a main moving gear and a reduction gear, both disposed on the top of the elevator car. Chains are passed under a respective one of several gears connected to shafts of the reduction gear. The chains are connected to a first connector, which is disposed above the car, and is connected to steel ropes of the car. When a breakdown of the elevator causes the car to stop between two of the floors, the passengers can control an emergency power supply to activate. A fall prevention member to free the carriage from the first connector for permitting the carriage to move down relative to the first connector; the emergency power also activates a braking switch of the main gear for same to turn in order to drive the reduction gear and the gears connected to the chains for lowering the car.

Abstract: An improved top of car inspection station includes warning circuit for providing a warning signal whenever the elevator car is in the inspection mode and the emergency stop switch is deactivated and the mechanic is not commanding the car to move.

Abstract: An apparatus and method for isolating an elevator car from elevator system vibrations is described. The isolation system and method comprise suspending an elevator platform from an upper portion of an elevator sling with upper tension members. In addition to being suspended from the sling by upper tension members, the elevator car platform may be secured to a lower portion of the sling from with lower tension members. The tension members preferably have an in-use frequency of vibration below the frequencies of the elevator system vibrations. In an alternative embodiment, upper vibration attenuating tension members may be used to suspend the elevator car platform and the platform may be secured to the lower portion of the sling with standard isolation mounts instead of lower tension members. The tension members employed by the present invention may be manufactured from cables containing aramid fibers, such as Kevlar® rope.

Abstract: A brake assembly for braking a wheel having a brake anchor, a brake anchor first annular portion, a brake anchor second annular portion, and a plurality of brake anchor splines on the brake anchor first annular portion.

Abstract: A safety brake assembly is disclosed comprising a housing movable on a vertical support, the housing attached to a carpet support arm, a pulley rotatably mounted on a shaft of the housing, a link having an inner end pivotally connected to the shaft and an outer end connected to a first end of a pivot bracket on the housing, a second end of the pivot bracket connected to a wedge-shaped member adjacent the pulley, and tensioning means connected intermediate the ends of the pivot bracket. In the event of cable failure, the upward pressure previously exerted on the pulley is released, causing a downward movement of the pulley and link, the movement transferred by means of the pivot bracket to cause upward movement of the wedge-shaped member which is forced up between the pulley and the vertical support, the resultant friction arresting further downward movement of the housing and carpet support arm.

Abstract: A disc brake includes a caliper housing, a pair of friction members, and a piston. The caliper housing includes a support portion and a cylinder portion coupled to the support portion. The cylinder portion has a piston chamber with a fluid inlet opening. The cylinder portion is an independent component from the support portion. Preferably, the caliper housing includes parts constructed of deformed sheet material such as press formed sheet metal. The parts are preferably fixedly coupled together by welding, brazing and bolts. The friction members are coupled to the caliper housing to form a rotor slot. The piston is mounted in the piston chamber to move one friction member between a release position and a braking position. In one embodiment, an integrated mounting member and a flanged cylinder is provided. In another embodiment, a pair of flanged cylinders with a pair of movable pistons is provided.

Abstract: A golf car having a hydraulic fluid brake system. The hydraulic fluid brake system is implemented as a disk brake system which is responsive to hydraulic fluid pressure generated from a master cylinder. A brake pedal and associated linkage provides input to a master cylinder to generate a hydraulic fluid pressure to control a brake caliper assembly. The brake pedal has a range of travel, where a first portion of the range defines a service mode of operation and a second portion of the range defines a parking mode of operation. In the parking mode of operation, the brake pedal and linkage engages a detent to maintain application of the brake to provide a parking mode of operation. An accumulator in the brake system provides an input force to maintain hydraulic fluid pressure sufficient to retain a parking mode of operation.

Abstract: A disk brake including a brake disk, a brake caliper and brake linings (2). The brake caliper comprises a lining shaft (18) in which the brake linings (2) and, if appropriate, at least one pressure distributor plate are held down by means of springs (10). Each of the hold-down springs (10) supports themselves on parts of the brake caliper (20) and of the brake lining (2) and, as appropriate, on parts of the at least one pressure distributor plate. Each of the brake linings (2) comprise a supporting plate (6) and at least one friction lining (4) which, in the disk brake according to the invention, is made from the same material. The brake linings (2) further comprise receiving elements (12) for hold-down springs (10) and at least accessory element (16). The brake caliper comprises receiving elements or line elements for the at least one accessory element.

Abstract: An electrically actuated braking system (30) of the type having a plurality of brake actuators (35, 37, 39, 41, 43, 45, 47, 49) disposed on a carrier housing (13) to selectively apply a braking force to effect the restraint of wheel rotation has the particular actuators employed during a braking event determined, at least in part, by monitored wheel motion. The system (30) reduces brake energy consumption and heat generation during slow speed operations, reduces braking induced vibration, and compensates for individual actuator failure.

Abstract: An autonomous generation brake assembly comprises a hub acting as a first rotor and defines a receiving space therein by a peripheral wall. A plurality of permanent magnets are arranged alternatively along inner face of the peripheral wall. A stator is received in the receiving space of the hub and includes an armature coils corresponding to the permanent magnets of the hub, and a magnetic coils. A second rotor is rotationally received in the hub and located within the stator for working with the magnetic coils thereby generating eddy current therein for being attracted by the magnetic coils of the stator.

Abstract: A braking member having a friction surface includes a matrix and a nickel-tungsten alloy layer disposed between the matrix and the friction surface. The nickel-tungsten alloy layer may form the friction surface. The braking member may include an additional nickel or copper layer, and such a layer may be disposed between the nickel-tungsten alloy layer and the matrix. A further metal layer may be disposed between the nickel-tungsten alloy layer and the friction surface, and the further metal layer may form the friction surface.

Abstract: Heat of an electrothermal part of a heater can be transmitted indirectly and efficiently to a pressure medium.

Abstract: The invention relates to a shock absorber having high dissipating power and comprising a rod-and-piston assembly (12) slidably received in a cylinder (11) and defining on either side of the piston (13) respective working chambers (18; 19) containing hydraulic fluid. In the invention, each working chamber (18, 19) communicates continuously with an associated chamber (20, 21) containing a heterogeneous energy absorption-dissipation structure constituted by a capillo-porous matrix (51, 61) and an associated liquid (52, 62) relative to which the matrix is lyophobic. In addition, each working chamber (18, 19) communicates with a common compensation chamber (30) via an associated valve system (32, 33) including non-return means (40, 41) ensuring that the working chamber concerned closes automatically during compression, and opens during expansion.

Abstract: Overheating of various parts of a hydraulic torque converter between the engine and the transmission of the power train in a motor vehicle, wherein the torque converter employs a bypass clutch which generates heat when it is operated with slip, is counteracted by establishing one or more paths for the flow of hydraulic converter fluid from a first plenum chamber at one side of the axially movable piston of the bypass clutch to a second plenum chamber. A first portion of each such path is defined by at least one groove in a friction surface of at least one part of the bypass clutch, and a second portion of each such path is defined by one or more throttling orifices which offers or offer to the fluid flow a resistance several times that of the groove(s).

Abstract: A slipping friction clutch which has at least on a pair of wet-running friction areas, especially a slipping converter bridging clutch for the hydrodynamic torque of a motor vehicle automatic transmission. In the state under the action of pressure, the two friction areas seal off the radially outward lying high pressure chamber against the radially inward lying lower pressure chamber, whereby at least one of the friction areas has oil-conducting depressions whose ends spaced from one another are directly hydraulically connected with the one of the two pressure chambers and which are configured such that, with a slipping friction coupling, the friction area sliding peripherally exerts a drag action owing to which an oil through flow is induced as a function of the slippage rotational speed which cools the friction area.

Abstract: A vehicle gearbox (2) comprises a centrally operating device (28) for releasing the clutch (6), which is provided between the clutch disc and the clutch bell housing of the gearbox (2). A transmission control unit (22) provided on or in the gearbox (2) is both electrically connected directly with the device (28) and the medium for actuating the clutch (6) is received directly from the transmission control unit (22).

Abstract: A one-way clutch unit has a one-way clutch having rollers serving as engaging members and a retainer for retaining the rollers and a ball bearing axially adjacent to the one-way clutch and having balls and a retainer for retaining the balls. And in order to reduce the number of component parts and the axial length of the unit, the one-way clutch unit has a one-piece outer ring having a first outer ring part for the one-way clutch and a second outer ring part for the ball bearing, which parts are integral with each other. The one-way clutch unit also has a one-piece inner ring having a first inner ring part for the one-way clutch and a second inner ring part for the ball bearing, which parts are integral with each other.

Abstract: A one-way clutch includes a retainer (1), a spring (2), and sprags (3) which are provided in pockets of the retainer and those of the spring in a pivotable manner and forced by tongue-like flaps formed in the spring in a direction in which the sprags (3) are to be locked. A peripheral maximum width (La) of an outer cam surface of the sprag (3) and a peripheral maximum width (Lb) of an inner cam surface are greater than a circumferential width (Lp) of the pocket of the retainer (1). Further, a width (Lc) of the sprag (3) in the direction of inclination is made smaller than a circumferential width (Lp) of the pocket of the retainer (1).

Abstract: In order to minimize an effect of centrifugal force on a release operation of a clutch piston, this invention provides a return apparatus including a spring support rotating at a same speed as the clutch piston, and a return spring abutted at an end against the spring support and exerting an elastic force on the clutch piston, the elastic force increasing as the clutch piston rotating speed increases.

Abstract: The present invention relates to clutches for selectively transmitting torque, and more particularly, to compliant centrifugal clutches. A compliant clutch (10) may have a plurality of engagement members (42 and 44), preferably at least three, and more preferably at least six. Each engagement member has an outer edge that is movable toward an interior surface of a receiving member (28), such as a drum. Flexible segments (70 and 72) may connect the engagement members to each other. In embodiment, the engagement members are arrayed around a hub, but detached from the hub to form an expandable engagement portion. Both aggressive members are provided. In another embodiment, the engagement members are affixed by flexible segments to the hub to form an extensible engagement portion. In yet another embodiment, a first and a second arm, each of which contains multiple engagement members connected by flexible segments, extend from the hub to provide non-aggressive torque transfer to the drum.

Abstract: The housing of the slave cylinder in an apparatus for actuating a friction clutch between the engine and the input shaft of the change-speed transmission in the power train of a motor vehicle has a one-piece metallic or plastic member which is non-rotatably affixed to the transmission case. The annular piston of the slave cylinder carries a clutch release bearing and is surrounded by a wall of the housing; this piston slidably surrounds a deep-drawn metallic guide sleeve which is centered in the transmission case and has a flange secured to a collar of the housing by two or more lugs having mutually inclined portions partially bent around and partially recessed into the collar.

Abstract: A wet friction plate of a hydraulic clutch or hydraulic brake for an automatic transmission having a reduced friction resistance in a non-engaged state. A plurality of friction materials disposed in an annular shape with a plurality of radial oil passages each provided between the adjacent friction materials are mounted at two radially inner and outer stages on a surface of a friction plate of a wet hydraulic clutch of an automatic transmission. The friction materials are brought into contact with an annular separator plate to transmit a torque. Inner peripheral edges of each of the friction materials are formed into a V-shape toward a radially outer side.

Abstract: A recycling machine is provided which compacts containers using a multi-purpose compacting system which includes a roller assembly having a roller configured to draw containers through an adjustable container-receiving throat. The compacting system also includes a base plate assembly with a movable base plate which at least partially defines the throat, the base plate being mounted for movement between a first orientation wherein the base plate is a first predetermined distance from the roller so as to define an open container-receiving throat, and a second orientation wherein the base plate is a second lesser predetermined distance from the roller so as to close the container-receiving throat. The throat typically is closed as the container passes between the roller and the base plate so as to compact the container therebetween.

Abstract: A container compacting system comprising a frame, a reference surface operatively mounted on the frame and a cam operatively mounted to the frame for rotation about a cam axis and a base plate assembly including a foldable base plate and a cam follower operatively secured to the foldable base plate to form at least a portion of a driving connection between the reference surface and the foldable base plate, the foldable base plate being operatively pivotally mounted on the frame for movement with the cam follower, under driving influence of the cam, between a first orientation wherein the foldable base plate is a first predetermined distance from the reference surface so as to define an open container-receiving throat, and a second orientation wherein the foldable base plate is a second lesser predetermined distance from the reference surface so as to close the container-receiving throat, the base plate assembly further including a shock absorber arrangement operatively secured to a folding portion of the base

Abstract: The present invention concerns a dirt separation module (1) for use at a coin sorting and/or counting machine (11). The module has an inlet (2) for coins (14) and a perforated plate (3). The perforated plate is received sliding in relation to the inlet (2) and is stepped. The invention also includes a CDS machine furnished with a dirt separation module (1). Furthermore, the invention concerns a method by which the plate is given a reciprocating movement to move the lowermost layer of coins (14) from the mass of coins.

Abstract: A conveyor assembly is for use with a vehicle having a wheel pivotable about an axis and an actuator configured to pivot the wheel. The conveyor assembly includes a carriage connectable with the vehicle and having a wheel pivotable about an axis, a swing axis and a first bearing surface about the swing axis. A carriage steering actuator pivots the carriage wheel about its axis in one direction when the vehicle actuator pivots the vehicle wheel about its axis in an opposing direction. A conveyor connected with the carriage has a second bearing surface engaged about the first bearing surface. Further, a swing actuator rotates the conveyor about the swing axis such that the second bearing surface linearly displaces along a first arcuate path as an actuator end displaces along a second arcuate path, configured such that the bearing surface displacement is greater than the actuator end displacement.

Abstract: The invention relates to a device for blowing or pushing products from a conveying member, to which end a number of spaced-apart members are employed, each being provided with a controllable air valve, or with sliding parts with a controllable driving mechanism which are mounted on an endless conveyor, belt or chain. Further, a control system has been provided in which detection members determine whether a product meets set quality requirements and when and by which member the approved products should be blown or pushed from the conveying member in such a way that the products are successively brought in predetermined arrangements or patterns.

Abstract: An endless chain running through a tubular conveyor sleeve, for conveying articles from an inlet to an outlet, the endless chain being tensioned between two sprocket wheels. The endless chain comprises chain links, some of them having transportation discs attached thereto. The transportation discs comprise at least two portions attached together around and against the corresponding chain links.

Abstract: A continuous motion robotic device including a first robotic arm, a second robotic arm, a third robotic arm, and a drive system. The robotic arms are coaxially arranged, each including an end effector for performing useful work on an object and can continuously rotate a full 360°. The drive system commonly controls the three robotic arms and defines a central axis about which the device rotates. The device is capable of high-speed operation in that the robotic arms are sequentially presented to various work environment stations via rotation about the central axis. In one preferred embodiment, each of the robotic arms provides three degrees of freedom. In another preferred embodiment, each robotic arm includes at least a first primary joint and a second primary joint, with the first primary joints being coupled and the second primary joints being coupled. Alternatively, the primary joints are decoupled.

Abstract: A device is provided for cleaning an endless conveyor. The device includes an endless brush belt engageable with the endless conveyor. A tension mechanism is provided for placing a tension on the endless brush belt. A clutch mechanism is operatively connected to the tension mechanism. The clutch mechanism prevents the placement of additional tension on the endless brush belt in response to tension exceeding a predetermined maximum tension.

Abstract: A rotary orienting feeder is configured for singulating/orienting bulk volumes of articles. The feeder includes a rotatably driven feed disc, and a rotatably driven orienting bowl assembly which is positioned generally about the feed disc. The feed disc is driven about an axis which angularly intersects an axis about which the bowl is driven, whereby during operation articles are transferred from the feed disc to an upper flange portion of the bowl assembly. An outer guide fence, which may be provided with suitable tooling, cooperates with the bowl and the articles carried thereby to effect singulation/orientation. Economical and versatile manufacture and operation are achieved by forming an outer bowl of the orienting bowl assembly of non-metallic material, such as polymeric resin. Reduced weight, reduced power consumption, quieter operation, and gentler part handling are desirably achieved.

Abstract: The present invention relates to a conveying system comprising a drive chain and at least one conveying carrier. Such a conveying system is to be made more flexible for the most different goods to be conveyed. To this end the conveying carrier can be brought into detachable engagement with the drive chain, the drive chain comprising chain links arranged in a row and interconnected via a chain joint, a chain joint being formed by a sleeve pertaining to a first chain link and by a bolt passed through the sleeve and pertaining to a second chain link, at least part of the bolts projecting laterally at both sides and a transporting sleeve being arranged on each of the projecting end portions and the conveying carrier comprising an engaging means which can be brought into detachable engagement at least with both transporting sleeves of a bolt. The invention further relates to a drive chain for such a conveying system.

Abstract: A bolt-together powered belt conveyor assembly includes adjustable tail assemblies which facilitate adjustment of the overall length of the conveyor, while positively securing the position of the end rollers relative to the conveyor sections. The conveyor assembly further includes an adjustable nose-over assembly, which is adjustable to accommodate a change in angle between adjacent conveyor sections. The conveyor assembly further includes a drive assembly which is connectable between end assemblies or slider bed conveyor sections and which is adapted to be installed on a horizontal, inclined or declined conveyor section. The position of the rollers, length of the conveyor sections and angle of incline of the conveyor section may be easily adjusted via adjustment of one or more fasteners of the conveyor assembly, thereby avoiding the need of welding various components of the conveyor assembly together.

Abstract: A conveyor, preferably for transporting skids, including a frame having first and second laterally spaced side rails, first and second underlayments fixed to the first and second side rails, first and second endless belts, and a drive mechanically coupled to the first and second belts. The belts are formed of a plurality of interconnected rigid modules wherein the first underlayment supports the first belt and the second underlayment supports the second belt.

Abstract: An end of the present invention is to make it possible to input multi-valued signals by a manipulation to incline a key in a multi-direction-operative key switch, and disclosed is a structure of a multi-direction-operative key fitting to the end of the present invention.

Abstract: A pushbutton configuration includes at least two neighboring pushbuttons, connecting webs, and spring legs. The connecting webs are in the form of constricted film hinges. The length of the connecting webs is, preferably, 3 to 10 mm, the width of the connecting webs is 0.5 to 2 mm, and the thickness of the connecting webs at their ends is 0.5 to 1.5 mm and at their constricted center is 0.15 to 1 mm, but, in any event, less than at their ends. The pushbutton configuration is preferably formed in one piece from readily flowing polyacetal, which has a high rigidity and restoring elasticity.

Abstract: The present invention relates to an arrangement in connection with a control device (1) particularly used for controlling a forestry machine and a boom thereof. The control device comprises a frame section (5), a handle (2) attached pivotally thereto, operating switches (3) at the handle and a control keyboard (4) arranged in connection with the handle onto a supporting plate (8) surrounding the handle. The present invention enables a driver to reach all control keys (9) of the control device at all operating positions of the control device. Thus the supporting plate comprises a dome-shaped element having, for example, spherical outer surface (10) and being arranged in connection with the handle (2). The control keyboard (4) is arranged on the outer surface of this element.

Abstract: A switch includes a movable contact slidable on a stationary contact and configured to be electrically connected to and disconnected from the at least one stationary contact. Lubricant is provided between the stationary contact and the movable contact. The stationary contact has a contact surface which is configured to contact the movable contact. The contact surface is rough to retain the lubricant thereon and to be electrically connected to the movable contact.