Abstract: A linear actuator is provided with an outer tube, an intermediate tube and an inner tube, and the tubes are all polygonal in cross section and are mounted orderly. The outer tube is disposed at the bottom thereof with a push device which has a screw and a nut that are screwed with each other. The nut is engaged in the intermediate tube and is linked to move axially by the screw. The intermediate tube can be movably equipped with a pulling member, and the pulling member can link the inner tube to synchronously move in the axial direction. By such arrangements, the linear actuator allows the respective tubes to extend and retract axially relative to one another while preventing them from moving relative to one another in radial direction, thus achieving the stable and smooth axial movement.

Abstract: In a concentric double axis mechanism (1); a driving bevel gear (7) is placed concentrically with and freely from any interference with an axis-A (3), a follower bevel gear (8) is meshed with the driving bevel gear (7), and an axis-B (9) is concentrically connected and fixed to the follower bevel gear (8). Since the driving bevel gear (7) is driven by the axis-B actuator (12) that is independent from the axis-A actuator (11), the axis-B (9) can be driven being free from any interference with the axis-A (3). The axis-A actuator (11) does not become a load for the axis-B actuator (12), nor does the axis-B actuator (12) become a load for the axis-A actuator (11).

Abstract: A slider of a moving portion slides on a sliding surface of a guide portion according to a selected range of an automatic transmission. A plurality of through holes are provided on the sliding surface. A detecting portion detects the range of the transmission based on the position of the moving portion. Particles on the sliding surface are scraped by a slider of the moving portion. The scraped particles drop into the holes to prevent a slider from being stuck.

Abstract: A rotary damper includes an operating part mounted in an interior in a vehicle in such a manner that the operating part can be introduced or withdrawn, an operating part case that guides a path of the operating part, a pinion gear mounted to one side of the operating part and a guide rail rotatably mounted to the operating part case such that the pinion gear can be engaged with the guide rail. Further, a separation preventing protrusion is provided at a portion of the guide rail, where the pinion gear starts to move in a curvilinear form, the separation preventing protrusion configured to support an outside surface of the pinion gear.

Abstract: A lifting device having parallel double screw rods includes a motor, a first transmission and a second transmission. The first transmission includes a screw rod driven by the motor and a telescopic tube assembly threadedly connected to the screw rod and linearly movable relative to the screw rod. The distal end of the telescopic tube assembly is fixedly connected on a connecting piece. The second transmission is provided at one side of the first transmission and parallel thereto. Further, the second transmission includes a sleeve driven by the motor to rotate, a telescopic tube assembly accommodated within the sleeve and axially movable relative to the sleeve, and a screw rod threadedly connected to the telescopic tube assembly and linearly movable relative to the telescopic tube assembly. The distal end of the telescopic tube assembly is connected to the connecting piece. With the above arrangement, each screw rod is interchangeable and the cost can be reduced.

Abstract: A handlebar for a bicycle has first and second laterally extending portions disposed outboard of a central attachment portion. Each of the first and second laterally extending portions is preferably winged-like in configuration to provide reduced air resistance. The first laterally extending portion includes an aerobar clamping mechanism, and the second laterally extending portion includes a second aerobar clamping mechanism. Each aerobar clamping mechanism includes a tapered receiving sleeve having an axis that is generally parallel to a travel axis of the handlebar. A collect having a major axis that extends in a plane generally parallel to the direction of travel of the bicycle is receivable within the receiving sleeve. The collet includes a plurality of axially extending slots that permits the diameter of the collet to be varied. The collet includes an aerobar receiving slot having a major axis that is generally co-linear with the axis of the collect, and is provided for receiving an aerobar.

Abstract: A gear having a thin-walled section formed on one end face among two end faces of a tooth in a tooth-width direction is provided. A portion of the thin-walled section is projected and formed so as to serve as an overhanging section. The overhanging section prevents backlash. A thickness T3 of the overhanging section, a thickness T2 of a tooth flank corresponding section, and a thickness T1 of a tooth crest corresponding section positioned therebetween satisfies the relation T1<T3<T2.

Abstract: A motor-vehicle gear arrangement for a power-assist gearing in a motor vehicle, that includes a gear, a flange arrangement including at least one flange, wherein the gear is located adjacent to the flange in the flange arrangement so as to rotate about a common axis, and at least one connecting element to connect the gear to the at least one flange. This gear arrangement, or a flange for this gear arrangement, is advantageous due to the fact that the ribs are formed on the flange laterally within a plane perpendicularly to the rotational axis so as to reinforce the flange.

Abstract: A centering spring apparatus in a shift control mechanism includes a plurality of brackets providing stationary ground members for spring members and a shift control lever, which is operable to pick up the springs from the grounded portion to impose a centering force on the shift lever. These springs are disposed such that three different centering forces can be occasioned upon the shifting of the lever from one neutral position toward other neutral positions.

Abstract: A tension compensation assembly for a mechanical control cable. The tension compensation device has a housing with opposing ends. First and second sections of the control cable pass through but are attached at each end of the housing such that the sheaths of each section are coupled to the housing and reciprocable cable coaxially disposed in each control cable section extend into the housing. The cables are attached to opposing ends of a reciprocably disposed capsule or spring caps generally enclosing a spring. In operation, the capsule moves slidably within the housing over a predetermined travel and tension for the cables. However, if an over-tension condition is experienced, the capsule may bottom out at an end of the housing and the spring will either compress or extend, depending upon its design, thus allowing the effective length of the control cable assembly to increase, thus preventing the stretching or breaking of the cables or damage to cable end fittings.

Abstract: A shift lever device has resin pieces, and a resin outer tube which is formed at an outer side of a shift lever main body. The resin pieces and the resin outer tube can be molded separately. Therefore, the resin pieces independently can be molded with high precision. Even in a structure in which interposed portions of the resin pieces are interposed between a detent pin and inner walls of long holes of the shift lever main body, the interposed portions do not project-out unnecessarily at an inner side of the shift lever main body. Resin can be interposed between the detent pin and the long holes of the shift lever main body, without carrying out precise inspection or repair work.

Abstract: A device for controlling motion of an object includes a housing defining first and second cavities each extending from a first to a second longitudinal end of the housing. A partition separates the cavities. A first sliding member is movable within the first cavity, and includes a first extension extending outwardly from the first longitudinal end for being attached to an object whose movement is to be controlled. A second sliding member is movable within the second cavity, and includes a second extension extending outwardly from a longitudinal end for being pulled a variably controlled distance away from the housing. A motion limiting member communicates with the sliding members such that movement of the second extension the variably controlled distance away from the housing causes the first extension to be movable the variably controlled distance in a direction in which the second sliding member is pulled.

Abstract: A kit is described that modifies a standard screw jack for a trailer hitch, by introducing a safety lock mechanism. The modified screw jack will be inoperative until the safety lock mechanism is opened. In the inoperative position, the screw jack cannot be turned to lift or lower the trailer hitch. The crank for turning the screw jack will be freewheeling or frozen. Turning a key in a lock keyway will release the safety lock mechanism, thus putting the crank into rotational engagement with the screw jack.

Abstract: In a geared motor, a worm wheel, an O-ring, a transmission plate and an output gear are installed to a support shaft. The O-ring is placed in an inner space of a receiving through hole of the transmission plate, through which the support shaft is received. Grease is applied to an outer peripheral surface of the support shaft. A grease relief passage, which relieves the grease, extends between the output gear and the transmission plate.

Abstract: A ball screw assembly includes a helical groove formed in the outer surface of the screw shaft without extending to both ends thereof, and an escape portion formed in the form of a slot is connected to one end of the helical groove of the screw shaft. The escape portion allows the cassette to abut against an outer periphery of the screw shaft, and the tongue portion is inserted deeply in the escape portion, such that the cassette is allowed to be rotated to effect axial movement relative to the screw shaft, thus finishing assembly of the nut, and the balls can be prevented from dropping out of the ball screw when the nut is disengaged from the screw shaft or when the nut moves out of travel.

Abstract: A gearshift lever with a reverse gear lock-out, having a manual gearshift lever with a gearshift knob, beneath which are placed the control line sheath, the ball, an elbow lever, and the transmission mechanism to actuate reverse gear. There is a lever of the reverse gear lock-out that can pivot around a pin in the housing, on which the transmission mechanism acts, and that blocks the motion of the elbow lever. The elbow lever has one shaft that can pivot on the housing and another shaft that receives a selector finger of the ball.

Abstract: A reciprocal force outputting mechanism includes a main body and a power component combined therewith; the main body includes a slide slot and two compression passages communicated with the slot; a slide block is accepted in the slide slot; a stem is accepted in each of the two compression passages, one end of each stem is combined to one flank side of the slide block; the slide block can be driven to move to and fro to allow the two stems to be moved reciprocally to respectively output a push force to enhance the working efficiency.

Abstract: A ball screw device includes a screw shaft threaded with a ball nut which has two channels and an opening, a guide member is engaged into the opening of the ball nut and has two curved pathways communicating with the channels to form two separated endless ball rolling passages in the ball nut, and two groups of bearing members are engaged in the two separated endless ball rolling passages for facilitating a movement of the ball nut relative to the screw shaft. The guide member includes two bars for enclosing the curved pathways of the guide member, and the bars each have a curved recess for forming the curved pathways of the guide member and for allowing the guide member to be easily manufactured.

Abstract: A device for securing two relatively movable parts (1, 2) contains at least one holding element (3) which is allocated to the first part (1) and engages into the second part (2) in a transverse manner with respect to the direction of movement of the two parts (1, 2). The second part (2) contains at least one container (7) filled with granular, preferably spherical, material (8) and embeds the holding element (3) in the material (8).

Abstract: Apparatus for the motorized opening and closing of a motor vehicle body part which can be pivoted with respect to a vehicle body about a hinged lid axis includes a guide cylinder having a first end and a second end which can be coupled to the body at a pivot axis which is parallel to the hinged lid axis, a piston guided displaceably in the cylinder, and a piston rod having one end attached to the piston and an opposite end which protrudes from the first end of the cylinder and can be coupled to the pivotable body part at a distance from the hinged lid axis. A drive device drives first and second Bowden cables, which extend in parallel from the second end of the cylinder, to displace the piston in the cylinder. The first Bowden cable includes a sheath which is supported on the piston and a core which is fixed to the first end of the cylinder. The second Bowden cable includes a sheath which is supported on the second end of the cylinder and a core which is fixed to the piston.