Abstract: A vehicle with at least one front wheel and two rear wheels comprises a rear cushion unit for use in damping repelling forces from the ground surface and other vibratory forces developed by chain driving and the like. The upper end of the rear cushion unit is supported at a position axially rearward of a main frame member of a frame structure, while the lower end thereof is supported at a position forward of a rear axle bearing member. On each side of the rear axle bearing member there is mounted either a sprocket wheel or a braking device.

Abstract: A control circuit for a vehicle leveling system which operates to restore the vehicle height to be within a reference vehicle height range. The control circuit comprises a first detecting device which detects the direction of change in the vehicle height, a second detecting device which determines the necessity of levelling operation, a logic circuit which properly controls the leveling operation in response to outputs of the first and second detecting devices, and a holding circuit which increases the duration of an OFF signal so as to render the pneumatic system of the vehicle to be inoperative, for a predetermined length of time. The control circuit effects adjustment in height in response to those changes in vehicle height which inherently require adjustment and avoids any adjustment in response to those changes in vehicle height which naturally occur instantaneously under normal driving conditions.

Abstract: A steering mechanism for vehicle equipped with a power steering system, the steering mechanism including a resilient element, such as a torsion bar, which is interposed in a path of torque transmission between a steering wheel and a power steering unit which provides an increased steering reactive force in proportion to vehicle speed. The steering mechanism includes a damper arrangement disposed between two relatively rotatable members which are operably associated with each other through the resilient element. The damper arrangement attenuates torsional vibrations of a first one of the relatively rotatable members disposed on the side of the steering wheel, such vibrations being caused by the interposed resilient element and the moment of inertia of the steering wheel.

Abstract: A process and apparatus for producing a twisted elastic thread in which an elastomeric thread of substantially 154 dtex to 310 dtex, is adhesively twisted with two yarns. The thickness of each of the two yarns is substantially of 100 to 12,500 dtex, and the yarns preferably are OE yarns of polyvinyl chloride, polyvinyl cyanide, polyacrylonitrile and/or wool threads, preferably produced by the rotor process. Prior to twisting, the yarns are surface-swelled under a vacuum between substantialy 0.1 and 0.2 bar in superheated steam at substantially 70.degree. C. for up to ten minutes for loosening purposes. During twisting, a pre-tension is imparted to the elastomeric thread with respect to the yarns. Such pre-tension is imparted to the elastomeric thread only a predetermined time after starting the twister, and the elastomeric thread is pre-tensioned by substantially 2 to substantially 5 times compared with the yarns.

Abstract: A chart recorder is described in which the writing head is rotatable by a motor to position any one of several writing tips over the paper. The motor is mounted on the same carriage as the writing head for movement relative to the paper.

Abstract: A wiring harness for motorcycles including a junction box collectively accommodating therein a plurality of electrical circuits such as subfuses and at least one connector connecting a main cable with load circuits. The wiring harness is improved both with respect to reduction in length and reduction in the quantity of wiring materials required therefor.

Abstract: In a rotary screen printing machine, which comprises a frame and at least one cylindrical stencil with end rings, each of which is rotatably mounted within a bearing on the frame. At least one of these end rings is provided with driven memebers for rotating the respective stencil. A coupling maintains a driving connection between the driven members, and a stop is operable upon the coupling to break the driving connection between the driven members for rendering the drive force of the driven members inactive during the printing operation, thus arresting the respective stencil. The stop subsequently can be actuate to permit a restoration of the said drive force. The provision according to the present invention thus allows a rapid addition or removal of one or more pattern portions of a design to be printed during the printing operation without any loss of time and material.

Abstract: A rack and pinion gearing comprising a helical rack and a spiral pinion. The rack has a structure defined by a radius, a distance from the axis to tooth crest, a helix angle, and a pressure angle determined from the viewpoint of applied kinematics so as to produce a balancing moment of rotation. The structure keeps the rack free from inclination and rocking about the axis which would otherwise result in a biting effect.

Abstract: A hair trimming device for moustaches and eyebrows which has a replaceable blade. The blade is held between a pair of plates. The blade is curved to provide a perfect cut, and the plates are likewise curved. The plates are hinged and can be quickly swung from open to close position and simple means are provided for locking the blades in position. In one form, a handle receives a flexible connector which is fastened to the blade supporting plate. The flexible connector can be moved along the handle to a position in which the plates are taughtly held against the handle and the blade is securely positioned between the plates. When moved in the opposite direction, the flexible member can be flexed to permit opening of the plates and replacement of the blade.

Abstract: A facial protective device for use in surgery and examination, adapted to extend outwardly from the base of the nose and be removably fixed in position by adhesive. The device and its adhesive adequately support surgical draping in a manner such as to ensure free passage of oxygen to the patient. Incorporated with the device is an oxygen delivery system which directs the oxygen most advantageously to the patient. The device is intended for single use and is disposable.

Abstract: A power steering system for vehicles includes a four-way valve slidable in response to applied steering torque for selectively connecting a pair of hydraulic oil chambers of a servo cylinder to a hydraulic pressure source and an oil reservoir. A pair of hydraulic rection chambers are disposed one on each side of the four-way valve and each contain a pair of plungers and a spring interposed therebetween. The plungers are held by and between a pair of diametrical pins supported on the valve and spaced axially from each other. When the reaction chambers are pressurized by an increased speed of the vehicle or a change in resistance from the road surface, the plungers are urged against the pins on the valve to prevent the latter from being slid axially, thereby allowing the driver of the vehicle to feel a suitable resistance to turning of the steering wheel without being assisted by auxiliary power from the servo cylinder.

Abstract: A power unit suspension system wherein a vehicle frame and a front lower portion of a power unit are connected with each other through a link rotatable about its front and rear pivots. An elastic body is provided between the link and the power unit. Rotational loads due to the power unit weight and rear cushion reaction acting on the link from the power unit side are elastically supported and converted into a moment of rotation.

Abstract: A clutch mechanism for a power transmission system including one drive member and two driven members, in which at least one pair of simple clutch members are interposed between the drive member and two driven members so as to transmit power from the drive member to the driven members independently of each other. The pair of clutch members may comprise a pair of pawls, rollers, or sprags. The clutch mechanism effectively performs conventional differential and differential-locking functions with a simplified construction.

Abstract: A drive unit for a vehicle having two juxtaposed drive wheels comprises an engine, an axle for supporting on its ends the drive wheels, a final output gear operatively coupled with the engine and mounted on the axle adjacent to one of the drive wheels, and a power transmitting assembly mounted on the axle adjacent to the other drive wheel, the engine being located between the final output gear and the power transmitting assembly. A crankshaft extends parallel to the axle and supports on one end a flywheel for a generator and on the other end a clutch including a speed changing device. The drive unit is unitized, compact in size, simple in structure, and requires a minimum number of parts.

Abstract: A drive unit mounting structure for a three-wheeled vehicle which has a rear fork pivotably connected to a vehicle body and supporting thereon a drive unit. In order to suppress hopping movements of the vehicle, front and rear portions of the drive unit are pivotably mounted by front and rear link members on the rear fork. The front link member has a longitudinal axis extending obliquely, when viewed in side elevation, toward a point where a pair of rear wheels drivably coupled to the drive unit contacts the ground. The front and rear link members include rubber mounts for dampening vibrations of the drive unit in operation.

Abstract: A small-sized vehicle having two front wheels steerable by a handlebar is provided with a windshield unit extending from a front end of a vehicle body upwardly and rearwardly in overhanging relation to the handlebar and a driver's seat mounted on the vehicle body rearwardly of the handlebar. The windshield unit is cross-sectionally channel-shaped and includes a lower cover fastened to the body and a windshield panel extending upwardly of the lower cover, the windshield panel supporting a pane of glass having an extensive area in front of the head of a seated driver. The unit further includes a roof plate attached to and extending from an upper end of the windshield panel rearwardly in overhanging relation to the seat so as to cover the driver's head. The windshield unit is provided with a container therein, the container being disposed forwardly of and adjacent to a column supporting the handlebar, and being adapted to accommodate therein articles desired to be transported.

Abstract: A vehicle instrument panel attaching structure wherein the instrument panel is attached to a body frame of the vehicle by means of stays which are disposed in side portions of the instrument panel so as to yieldably connect the instrument panel to the body frame of the vehicle. A predetermined clearance is defined between the instrument panel and the body frame of the vehicle in the assembled condition, so as to accommodate yielding movements of the stays. By virtue of the attaching structure, the instrument panel is yieldingly movable relative to the vehicle body frame when subjected to substantial impacts, thereby protecting a driver or a passenger from injury under unusual conditions such as during a collision of the vehicle.

Abstract: A piston-rack rotary actuator having four pistons each with an integral rack and each displaceable along a cylinder unique thereto, the racks meshing with a center gear at equiangularly spaced points and causing angular movements of a shaft about its rotational axis when said pistons are displaced along their respective cylinders, said gear being secured to said shaft. The racks are formed in respective webs which are supported by the actuator body in such a manner as to prevent piston-slewing which would otherwise occur due to the separating force generated by the meshing gear and racks when said racks are moved relatively to the gear.