Abstract: The air spoiler includes a blow molded air spoiler body with a plurality of recesses molded in its lower wall and spaced from one another across the back of the automobile body. The recesses each have rising laterally opposite walls and in each recess a securement device is located which is fixed to the spoiler body by molding of the lower wall of the spoiler body. Each securement device can have a screw-threaded fastener threaded into it for securing the spoiler on the rear of the automobile body.

Abstract: A power transmission device for an automobile, which is provided with a belt variable transmission and a direct coupling gear and capable of transmitting a power from a drive source to a differential gear selectively through the belt drive by the belt variable transmission or the direct coupling drive by the direct coupling gear, a counter gear engageable with an output shaft being provided on a counter shaft having a drive gear for transmitting the power to the differential gear so that the direct coupling gear engages with the counter gear to allow the gears during the direct coupling drive to engage with each other at two stages.

Abstract: A fuel injection nozzle is disclosed, which comprises a nozzle body provided with an injection hole. A nozzle needle is slidably fitted into the nozzle body, to open or close the injection hole of the nozzle body. The nozzle needle is provided with a needle pin which is insertable into the injection hole. The needle pin involves a taper section which is progressively slenderized toward the combustion chamber of an internal combustion engine. A plurality of axially extending flattened surface portions are formed on the outer peripheral wall of the taper section of the needle pin. As a result, the annular gap region defined between the outer peripheral wall of the needle pin and the inner peripheral wall of the injection hole entails wider and narrower gap sections.

Abstract: A V belt stepless variable transmission provided with a driving pulley comprising a stationary conical disc fixed to a drive shaft and a movable conical disc axially movable with respect to the drive shaft, a driven pulley comprising a stationary conical disc fixed to a driven shaft and a movable conical disc axially movable with repsect to the driven shaft, and an endless V belt running across both the pulleys, so that an interval between each stationary conical disc and each movable conical disc is changed to thereby carry out stepless variable transmission, the driving pulley being provided with a tension adjusting means for mechanically giving to the movable conical disc thrust to meet input torque to thereby adjust tension on the V belt, and the driven pulley being provided with an hydraulic actuating cylinder for hydraulically driving the movable conical disc at the driven pulley, so that a fluid is supplied or discharged to or from the hydraulic actuating cylinder so as to actuate the movable conical d

Abstract: A lockup control device for a torque converter, which is provided with a lockup clutch engageable to connect a pump at the torque converter directly with a turbine thereat and disengageable to release the direct connection of the pump and turbine, and with an actuating device comprising a car speed detector which detects car speed to output a plurality of car speed signals, a negative pressure detector which detects a suction pipe negative pressure to output a plurality of negative pressure signals, and an actuator operable in response to the car speed and negative pressure signals, so that, on a basis of the car speed and negative pressure signals output from the respective detectors, the clutch is engaged when the car speed is greater than or equal to a predetermined speed and the suction pipe negative pressure is greater than or equal to a predetermined pressure, and is disengaged when the car speed is less than the predetermined speed and the negative pressure is less than the predetermined pressure.

Abstract: A method of control of NC machine tools of the type wherein all control data necessary for preparing machining data is inputted into a control device by key switches provided on an operating board. The data necessary for machining a workpiece stored in a microcomputer contained in the NC machine is reduced to the lowest minimum, while various data, such as the paths of movement of tools during rough machining, rough finish machining and finish machining, actually needed for machining the workpiece are successively computed on the basis of the data stored in said microcomputer in advance. Thus, data associated with a variety of workpieces can be processed with a minimum of memory capacity, and complicated shapes having concaves and convexes can accurately be machined in a simple operation.

Abstract: A method for preparing NC (numerical control) tapes for use with numerical control machine tools wherein the information required for preparing the NC tapes is divided into three types of information, one type being machine item information, one being tool item information, and the third being drawing information, with the three types being fed into an information processing unit, the first type information being taped, the second type information being either taped or carded, both types of information being adapted for use by the operator so that such information can be selected when needed from a storage area for use and reuse in the information processing unit, the third type of information being adapted for feeding directly into the information processing unit by reason of a movable index operation of an input table and push button operation of function keys mounted on keyboard, by an operator's manual operation thereof based on his discretion.

Abstract: A tricycle having a front and a rear frame swingingly connected with each other in an axis line longitudinal of a tricycle body and providing between both frames an elastic member serving to restore the front frame when it is leaned against the rear frame, which is adapted to make zero or minimum the increasing ratio of restoring force of the elastic member when the front frame is leaned under the predetermined angle of inclination, while, large when over the same angle, whereby the tricycle is made safe and improved in a turning efficiency.

Abstract: A tricycle having a front frame supported with one front wheel and a rear frame supported with two rear wheels, wherein the front frame is connected with the rear frame on the axis longitudinal of the tricycle in the relation that the front frame is capable of being inclined to one side or the other with respect to the rear frame. The tricycle is provided with a torsion bar arranged between the front frame and the rear frame on the axial line so that the torsion bar is subjected to only torsion not to complicated stresses of bending and tension.