Abstract: A clutch valve is constituted with a valve cylinder fitted in and fixed to the center of a cylinder block in a manner to form with the cylinder a third ring-shaped oil passage and a second ring-shaped oil passage to communicate with a first ring-shaped oil passage and a valve body slidably fitted in the valve cylinder in a switchable manner to communicate between the third and second ring-shaped oil passages and/or shut them off from each other.

Abstract: A power train for vehicles having a swashplate type continuously variable transmission having a swashplate hydraulic pump and a swashplate hydraulic motor, a transmission cylinder therebetween with a plurality of pump plunger holes and motor plunger holes formed therein. The transmission cylinder is rotatable about an axis and is coupled with the crankshaft of the engine. The pump swashplate is rotatable and disposed at an angle to the axis of the transmission cylinder and is coupled with pump plungers. A motor swashplate which is variably inclined relative to the axis of the cylinder and includes motor plungers associated with the cylinder.

Abstract: In a hydrostatic continuously variable transmission in which a clutch valve capable of operating between a clutch-on position for setting a hydraulic closed circuit between a hydraulic pump and a hydraulic motor to a hydraulic transmitting state and a clutch-off position for setting the hydraulic closed circuit to a hydraulic transmission cutting-off state is connected to the hydraulic closed circuit, a pressure bearing chamber for urging the clutch valve to the clutch-off position, and a pressure regulating spring for urging the valve to the clutch-on position are provided in the clutch valve, and a clutch controller for regulating the set load of the pressure regulating spring is connected to the pressure regulating spring. Thus, the degree of the hydraulic transmission between the pump and the motor can be controlled as desired without influence of the viscous change of a working oil. The clutch valve is disposed at one axial end of a transmission shaft.

Abstract: A device for lining up parts having different shapes of upper and lower surfaces thereof and which are transported from a part feeder to a further transporting device located beneath the part feeder, includes running path conveyor with one end arranged adjacent to the part feeder, and a lining-up conveyor for transporting the parts from the running path conveyor to the further transporting device which is positioned lower than the running path conveyor. The lining-up conveyor includes two spaced rotatable rollers located, respectively, in vicinity of the another end of the running path conveyor and the further transporting device, a belt wound between the two spaced rotatable rollers and forming thereby a slop surface. The slop surface has thereon a member for catching protrudent parts formed on one of the upper and lower surfaces of the parts to thereby retain the parts on the slope surfaces. A drive is provided for driving the belt in a direction opposite to a descending direction of the belt.

Abstract: In a hydrostatic continuously variable transmission comprising an annular inner oil passage and an annular outer oil passage which are formed in the cylinder block between a large number of cylinder bores in the pump cylinder and a large number of cylinder bores in the motor cylinder so as to surround an axis of the cylinder block, large numbers of first and second distributor valves disposed radiately in the cylinder block and adapted to be reciprocally moved radially of the cylinder block, and a first and a second eccentric ring engaged with the first and second distributor valves, respectively, a large number of clutch valves are arranged radiately and circumferentially alternatively with the second distributor valves in the cylinder block and adapted to be reciprocally moved between radially inner and outer positions in the cylinder block to short-circuit the oil passages when the reciprocation stroke thereof exceeds a given value.

Abstract: A conductive composition comprising conductive particles made of a mechanical composite powder of copper or nickel covered with silver and a binder mainly containing bis-phenol A type epoxy resin (diglycidyl ether of bisphenol A) having 1600 to 5500 of molecular weight method for manufacturing a printed circuit substrate comprising the steps of printing the conductive composition on an insulating substrate and partially curing it in a range of 20 to 70% of completion as determined from DTA reactivity data. Thus, the conductive composition can manufacture an inexpensive circuit in simple steps as a whole with good solderability using low melting point solder and having high bonding strength. The method can manufacture the circuit by using the same conductive composition.

Abstract: A still carmera system is capable of being loaded with a film back or a still video back selectably or of changing focal length information of an objective lens in use so as to correspond to the image size of the still video back, whereby when loaded with the still video back, the operational condition of a focal length dependent portion is set in accordance with changed focal length information.

Abstract: In a motorcycle with a pair of left and right steps mounted in a projecting manner on a lower portion of a vehicle body, a pair of left and right brake pedals capable of independently operating the rear wheel brake are pivoted on the vehicle body in close vicinity to the left and right steps, respectively. When a driver turns the motorcycle in either left or right direction with his one foot being placed on the ground, the driver can operate the rear wheel brake using the opposite foot.

Abstract: A swashplate type variable displacement hydraulic device is so constructed that a plurality of plungers are slidably received in a plurality of cylinder bores arranged annularly around an axis of rotation, a back surface of a swashplate of which a fore surface is engaged by outer ends of the plungers is supported by a swashplate holder via bearing means, and a stationary swashplate anchor supports the swashplate holder to turn about a trunnion axis which intersects the axis of rotation at right angles. Opposing surfaces of the swashplate holder and swashplate anchor are formed as spherical surfaces of which a center is located at a position where the axis of rotation intersects the trunnion axis, the swashplate holder has a pair of trunnion shafts projected from opposite ends of the swashplate holder while extending along the trunnion axis, and the trunnion anchor is formed at opposite ends thereof with recesses with which the trunnion shafts are rotatably engaged.

Abstract: A shift control device in a hydrostatic continuously variable transmission in which a hydraulic closed circuit is formed between a swash plate type hydraulic pump and a swash plate type hydraulic motor, and a swash plate holder for supporting a motor swash plate of the hydraulic motor is tiltably supported on a stationary structure through a trunnion shaft fixedly mounted on the swash plate, wherein a drive shaft of a reversible electric motor is connected to the trunnion shaft through a reduction device which is constructed so that it transmits the rotation of the electric motor to the trunnion shaft at a reduced speed, but is brought into a locked state upon receipt of a reverse load from the trunnion shaft. This enables light adjustment of the tilting angle of the motor swash plate by use of a small-sized electric motor and reliable holding of the motor swash plate in a position at any angle.

Abstract: A still video adapter is attached to the body of a standard photographic camera, in place of the back cover of the camera, to enable picture taking on a magnetic disk, being provided with a deck portion extending from one side to the front of the adapter to hold a magnetic disk in parallel with the side of the adapter.

Abstract: An electronic still camera is designed to be operable for flash photography in collaboration with an electronic flash unit. This camera has an image pickup element for photoelectrically converting an image of an object to be photographed formed by a taking lens. The output of the image pickup element is subjected to gain control in a gain control circuit, after which it is converted into a signal suited for storing in a storing section. Further, this camera has a stop signal generating medium for stopping the flashing of the electronic flash unit when the integrated value of the light reflected from the object to be photographed reaches a predetermined value, a photoelectric conversion element for performing receipt and integration of light which has passed through the taking lens during the charge accumulation period of the image pickup element, and a gain determining circuit for determining the gain of the gain control circuit.

Abstract: A static hydraulic continuously variable transmission includes a cylinder block which is secured to an output shaft and comprises a pump cylinder of a hydraulic pump and a motor cylinder of a hydraulic motor, these cylinders being connected to each other, wherein, a number of pump cylinder bores and a number of motor cylinder bores are annularly arranged respectively in the pump cylinder and the motor cylinder and the transferring of a working oil between the group of the pump cylinder bores and the group of the motor cylinder bores is conducted through the medium of a pair of oil chambers which are concentrically provided around the output shaft communincation between these cylinder bores is controlled by a number of first and second dispensing valves extending between both the oil chambers and adapted to be reciprocally radially moved.

Abstract: In a hydrostatic continuously variable transmission comprising a swashplate type hydraulic pump having a pump swashplate and annularly arranged pump plungers whose suction and discharge strokes are provided by the pump swashplate, a swashplate type hydraulic motor having a motor swashplate and annularly arranged motor plungers whose expansion and shrinkage strokes are provided by the motor swashplate, and a hydraulic closed circuit formed between the hydraulic pump and motor, the middle point of a discharge region of the hydraulic pump is angularly delayed at a given angle in a direction of rotation of the hydraulic pump relative to a tilting axis of the pump swashplate, and/or the middle, point of an expansion region of the hydraulic motor is angularly advanced at a given angle in a direction of rotation of the hydraulic motor relative to a tilting axis of the motor swashplate.

Abstract: A still video adapter device is detachably mounted to a back portion of a camera body, in place of a rear cover. The light passing through an objective lens of the camera body is relayed by a relay optical system and split into two groups, one being directed to an image sensor for the still video photography, the other to a light measuring element for the exposure control. The output of the light measuring element is integrated and compared with a given value, thereby generating a signal for interrupting the flash light emission when the integrated value reaches the given value.

Abstract: A still camera system comprises a camera body which carrys alternatively a film back or a still video back having a solid-state image pickup device for receiving still images in order to record them on a recording medium. The improved system includes a display, a first means for providing the display information on the film back installing mode, and a second means for providing the display information on the still video back installing mode.

Abstract: In a swash plate type hydraulic system such as a hydraulic pump, a hydraulic motor of the like, a group of cylinder bores in which plungers engaging a swash plate are slidably received are annularly arranged in a cylinder block, and higher and lower pressure oil passages are concentrically provided in the cylinder block. Further, a group of distributor valves are provided in the cylinder block in a radially arranged configuration for controlling the connection and disconnection between the higher and lower pressure oil passages and the group of cylinder bores by radial reciprocating motion of the valves, and an eccentric wheel is provided eccentrically with respect to the center of rotation of the cylinder block to abut against the outer ends of the distributor valves so as to impart a reciprocating motion to each of the distributor valves. A shifting device is provided for changing the eccentric relationship between the eccentric wheel and the cylinder block.

Abstract: A video still camera of the single lens reflex type is provided having a movable finder mirror for reflecting light passed through an objective lens, and a movable optical low-pass filter for preventing a light component having a spatial frequency lower than a predetermined value from being incident on an image receiving element. The finder mirror is located at a position in a photographing path through which photographing light passes when the camera is in a finder observation condition, while the optical low-pass filter is located at that position instead of the finder mirror when the camera is in a photographing condition. A driving device for selectively positioning either the finder mirror or the optical low-pass filter at the position is provided. The compactness of the video still camera is improved.

Abstract: A switching valve device provided in an oil passage in which the flow of oil pressure is supposed to occur in both directions, the switching valve device having two check valves provided in the oil passage so as to allow a flow of oil pressure in respective directions opposite to each other, the check valves being biased by means of springs in their respective closing direction, and means is provided for forcibly open the check valves against the bias of the springs. Thereby the switching valve device selectively assumes a first state which allows a flow of oil pressure in one direction, a second state which allows the flow in the other direction, and a third state which does not allow such flow in any direction.

Abstract: A swashplate type hydraulic pressure device comprising a cylinder and a swashplate which is rotatable relative to the cylinder and rotatably supported on a holder, the cylinder having a number of plungers disposed thereon axially slidably in an annular arrangement, in which a spherical end is formed at that extreme end of each plunger which is in abutment with the swashplate, and the swashplate is provided with a spherical concave portion for engagement with the spherical end. By cooperation between the spherical concave portions and the ends, the cylinder rotates synchronously with the swashplate and an aligning action is imparted to the swashplate from the group of plungers of the cylinder.