Abstract: The invention relates to a bearing for supporting a moving member having a surface of a first arithmetical mean roughness. This bearing is made of an abrasion-resistant aluminum alloy containing 14.0-17.5 wt% of Si, 2.0-5.0 wt% of Cu, 0.1-1.0 wt% of Mg, 0.3-0.8 wt% of Mn, 0.1-0.3 wt% of Cr, 0.05-0.20 wt% of Ti, 0.003-0.05 wt% of P, not greater than 1.5 wt% of Fe, less than 0.005 wt% of Ca, and aluminum as a remainder. The aluminum alloy contains silicon primary crystals, and first and second intermetallic compounds. Each of the silicon primary crystals and these intermetallic compounds has an average particle diameter from 8 to 30 .mu.m. The silicon primary crystals and the first and second intermetallic compounds respectively have first, second and third fractions each ranging from 5 to 40 .mu.m in particle diameter. The total area of the first, second and third fractions on a two-dimensional section of the alloy is from 5 to 10% by area, based on the total area of the section.

Abstract: In a transmission case section for an automatic transaxle case, a center axis of a governor receiving portion is arranged between a center axis of a main power train and a center axis of a reduction gear when viewed in plane perpendicular to the center axis of the main power train and the center axis of the final drive gear. A nearly right-angled triangular reinforcement is formed in a corner between a main power train receiving portion and differential side cover portion. The governor receiving portion is formed so as to extend through the reinforcement.

Abstract: In an automatic transaxle having an idler gear center axis below a line interconnecting a main power train center axis and a differential center axis, a control valve assembly is disposed on one of opposite sides of a transaxle case divided by the idler gear center axis. The differential is disposed on the other of the opposite sides of the transaxle. An oil storing chamber is disposed next to the control valve assembly and free from occupation by same. The oil storing chamber extends from one to the other of the opposite sides of the transaxle case.

Abstract: An oil passage structure in a transmission casing of an automotive automatic transmission, comprises, at an outer peripheral abutting surface between the transmission casing and the oil pump cover, an opening defined in the transmission casing which is exposed to the abutting surface of the transmission casing and is communicated with the inlet port of the valve assembly provided in the bottom section of the transmission through a single vertical oil channel formed in the transmission casing by machining to provide the shortest distance between the inlet port of the valve assembly and the opening. The oil passage structure also comprises an oil groove which is integrally formed on the abutting surface by die-casting and includes a point connecting the outlet port of the oil pump through an oil passage defined in the oil pump cover, to intercommunicate the opening and the connecting point.

Abstract: A chamber having therein a V-belt type continuously variable transmission is separated from another chamber having therein a differential mechanism. These chambers, however, are in fluid communication with an oil pan via generally vertical holes.

Abstract: An air breather device of an automatic transmission is disclosed, which comprises a first recessed portion formed on a transmission housing near a mating edge portion of the same, and a second recessed portion formed on a converter housing near a mating edge portion of the same. Upon coupling of these housings with their mating edge portions sealingly mated, the first and second recessed portions are mated with each other to constitute a single air breather chamber having a sufficient capacity.

Abstract: A continuously variable transmission includes a pipe attached to the inner wall of a side cover of a casing. The pipe defines a part of a fluid supply path to a fluid pressure chamber of a follower pulley.

Abstract: In an automatic transmission, an arrangement for discharging band servo operating hydraulic pressure comprises an upstanding passage and a communication passage formed in a transmission case, and a discharge valve installed in the communication passage. The upstanding passage is so formed as to extend inwardly or upwardly from a control valve body joining surface of the transmission case. The communication passage is so formed as to extend inwardly from an outer peripheral portion of the transmission case adjacent an oil pump cover joining surface thereof to fluidly connect a servo cylinder chamber to the upstanding passage which is in turn fluidly connected to a servo release passage of a control valve assembly. The discharge valve is in the form of a check valve and disposed in the open end of the communication passage which is located at the above described peripheral portion of the transmission case adjacent the oil pump cover joining surface thereof.

Abstract: A guide drum assembly comprises a rotary drum mounted with at least one rotary magnetic head, a rotary shaft rigidly fixed to the rotary drum so that the rotary drum rotates when the rotary shaft rotates, a motor having a stator and a rotor which generates a torque for driving the rotary shaft, and a resilient member having both viscosity and resiliency for resiliently coupling the rotor to the rotary shaft. The resilient member absorbs vibrations in a circumferential direction of the rotor.

Abstract: A governor cap sealing structure of a transmission gearbox, in which a governor cap for covering a governor valve arranged outside the transmission gearbox is mounted to a mount member attached to the outside of the transmission gearbox via a sealing member interposed between the governor cap and a sealing surface of the mount member, and in which the width of the sealing surface of the mount member is larger than that of the sealing member.

Abstract: A casing receiving therein a power transmitting mechanism has opposed upper and lower side portions. A control valve for controlling a gear shift of a transmission is installed in the lower side portion of the casing. A band brake includes a brake band, a servomotor operatively connected to the control valve and one end of the brake band for selectively putting the brake band into a brake engaged state and a brake disengaged state and an anchor pin operatively connected to the other end of the brake band for receiving a reaction force therefrom. The servomotor and the anchor pin are installed in the upper side portion of the casing.

Abstract: An accumulator is disposed in a space defined in the transaxle case adjacent two shafts and/or the intermeshing gears associated therewith. The bore of the accumulator is formed in a web or the like which reinforces the casing at the site where a bearing associated with one of the gears is disposed. The conduits which interconnect the accumulator with the valve body exhibit sufficient flow resistance to obviate the need for separate orifices.

Abstract: An automatic transmission having a reduction shaft disposed in a lower part within a transmission case is equipped with a govenor shaft having a governor shaft gear engaging with a governor drive gear formed in the reduction gear. The governor shaft extends substantially vertically from a lower end to an upper end. The lower end of the governor shaft is rotatably supported by a bottom of a governor case which is integral with the transmission case. The bottom of the governor case is located below a level of a lubricating oil in the transmission case, and formed with an opening for allowing the oil to flow into a clearance between the lower end of the governor shaft and the governor case.

Abstract: An improved cap mounting structure of the governor valve for automatic transmission is shown. The cap is mantled on a governor case for housing the governor valve by a snap ring which engages the outer periphery of the governor case through openings formed on the cap at inner protruding portions and the both end of the snap ring.

Abstract: A governor shaft for supporting a governor valve is rotatably supported to a transmission case by a stopper pin. The governor shaft is formed with an annular groove having a rectangular cross section. The stopper pin is inserted through the transmission case, and engaged with the annular groove of the governor shaft for preventing the governor shaft from being extracted and allowing the rotation of the governor shaft. The stopper pin has two cylindrical portions and a middle portion lying between the cylindrical portions. The middle portion is received in the annular groove, and the cylindrical portions are supported by the transmission case. In one embodiment of the present invention, the middle portion has a square cross section, so that the stopper pin tends to be in face contact with the annular groove. The cylindrical portions are arranged to allow the stopper pin to rotate to a limited extent.

Abstract: An apparatus for composite-recording information, having an optical system for forming an image corresponding to an original placed on a copy board onto a photosensitive member thereby to form an electrostatic latent image of the original, a reproducing device for scanning and reproducing electric information signals on the photosensitive member in the form of an electrostatic latent image, and a developing device for developing the electrostatic latent image on the photosensitive member in a visualized form. A system for controlling the apparatus for composite-recording information is characterized in that when there is a request for recording electric information signals while the electrostatic latent image is being formed on the photosensitive member by use of the optical system, a cycle for forming electrostatic latent image of electric information signals having high priority is executed after one page of electrostatic latent image has been formed.