Abstract: A speed reducer part B of an in-wheel motor drive device (21) includes a casing (22), an input shaft (25) having one end arranged in the casing (22), disk-shaped eccentric members (25a and 25b) eccentric with respect to an axis O of the input shaft (25) and coupled to the one end of the input shaft, revolution members (26a and 26b) having a center part supported by outer circumstances of the eccentric members (25a and 25b) through a rolling bearing (41), to make a revolution motion around the axis O together with a rotation of the input shaft (25), an outer circumference engagement member (27) supported by the casing (22) and engaging with outer circumferential parts of the revolution members (26a and 26b) to cause the revolution members (26a and 26b) to make a rotation motion, and an output shaft (28) engaging with the revolution members (26a and 26b) to extract the rotation motion, in which the rolling bearing (41) has a lubricant oil hole (59) to supply a lubricant oil to a track surface (42a) being in rol

Abstract: A spring clutch is provided for which durability is improved by preventing a clutch spring from breaking due to fatigue. A cylindrical clutch spring made from a wire having a square section is mounted between a pulley and a pulley hub mounted in the pulley. An end of the clutch spring is coupled to the pulley hub. A clutch surface is formed on the inner periphery of the pulley and is formed with a large-diameter recess at a position opposite to the end portion of the clutch spring including the torque transmission end. When the pulley rotates in one direction, the clutch spring expands. At this time, the end portion of the clutch spring including the torque transmission end expands in the large-diameter recess, thus relaxing sharp torque produced in the clutch. This prevents local stress concentration on the clutch spring and breakage of the clutch spring and improves the durability of the clutch.

Abstract: An in-wheel motor drive device (21) includes a motor part A, a reducer part B, a wheel hub C, and a reducer part lubricating mechanism to supply a lubricant oil to the reducer part. The reducer part lubricating mechanism includes a lubricant oil path (25c), a lubricant oil supply port (25d), a lubricant oil discharge port (22b), a circulation oil path (45) passing through a casing (22) to connect the lubricant oil discharge port (22b) to the lubricant oil path (25c), and to return the lubricant oil discharged from the lubricant oil discharge port (22b) to the lubricant oil path (25c), a cooling water path (22e) provided in the casing (22) so as to be in contact with the circulation oil path (45) to cool down the lubricant oil passing through the circulation oil path (45), and a partition member (49) arranged in a contact position between the circulation oil path (45) and the cooling water path (22e), to separate them.

Abstract: An object is to make it possible to stably transmit torque of the rotary shaft to the respective planetary rollers without applying a preload to the planetary rollers with a negative gap between the radially outer surface of the rotary shaft and the radially inner surface of the outer ring member. Planetary rollers 7 rotatably supported on their radially inner surfaces by respective support pins 6b are radially inwardly biased by radially compressible ring springs 18 enveloping the support pins 6b, thereby biasing and pressing the respective planetary rollers 7 against the radially outer surface of a rotary shaft 4. Thus, it is possible to stably transmit torque of the rotary shaft 4 to the respective planetary rollers 7 without applying a preload to the planetary rollers 7 with a negative gap between the radially outer surface of the rotary shaft 4 and the radially inner surface of the outer ring member 5.

Abstract: A spring clutch is provided which has improved durability by preventing a clutch spring from breaking due to fatigue. A cylindrical clutch spring made from a wire having a square section is mounted between a pulley and a pulley hub mounted in the pulley. An end of the clutch spring is coupled to the pulley hub. A clutch surface is formed on the inner periphery of the pulley and is formed with a large-diameter recess at a position opposite to the end portion of the clutch spring including the torque transmission end. When the pulley rotates in one direction, the clutch spring expands. At this time, the end portion of the clutch spring including the torque transmission end expands in the large-diameter recess, thus relaxing sharp torque produced in the clutch. This prevents local stress concentration on the clutch spring and breakage of the clutch spring and improves the durability of the clutch.

Abstract: Musical sound signal is input to an electronic volume control unit, which in turn adjusts the gain of the input musical signal and outputs the resultant gain-adjusted signal to an amplifier. CPU supplies the electronic volume control unit with a sound volume setting level corresponding to an output of a rotary encoder. At the same time, the CPU generates, with reference to stored data of a ROM table, a hue control signal for changing a displaying hue of a three-color light-emitting diode in accordance with the sound volume setting level supplied by the CPU. The CPU takes in a current sound volume setting level when an upper-limit setting switch is activated, and it retains the taken-in level as an upper limit value of various sound volume setting levels that are to be used to change the displaying hue of the light-emitting diode between purple and red hues. As the sound volume setting level is changed from zero to the upper limit value, the displaying hue changes in a stepwise manner.

Abstract: A wind driven electrical power generating apparatus includes a rotor rotating by receiving wind force, a gear assembly having an input shaft connected to the rotor, a generator connected to an output shaft of the gear assembly, a sensor for detecting generating capacity of the generator and a controller for varying gear ratio of the gear assembly based on a signal from the sensor. In this construction, the controller controls so that the generator keeps rotating at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a maximum power operation region of the generator. Alternatively, the controller controls so that rotational speed of the output shaft of the gear assembly is adjusted to at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a rated power region as an upper operational limit.

Abstract: A wind driven electrical power generating apparatus includes a rotor rotating by receiving wind force, a gear assembly having an input shaft connected to the rotor, a generator connected to an output shaft of the gear assembly, a sensor for detecting generating capacity of the generator and a controller for varying gear ratio of the gear assembly based on a signal from the sensor. In this construction, the controller controls so that the generator keeps rotating at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a maximum power operation region of the generator. Alternatively, the controller controls so that rotational speed of the output shaft of the gear assembly is adjusted to at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a rated power region as an upper operational limit.

Abstract: A wind driven electrical power generating apparatus includes a rotor rotating by receiving wind force, a gear assembly having an input shaft connected to the rotor, a generator connected to an output shaft of the gear assembly, a sensor for detecting generating capacity of the generator and a controller for varying gear ratio of the gear assembly based on a signal from the sensor. In this construction, the controller controls so that the generator keeps rotating at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a maximum power operation region of the generator. Alternatively, the controller controls so that rotational speed of the output shaft of the gear assembly is adjusted to at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a rated power region as an upper operational limit.

Abstract: Musical sound signal is input to an electronic volume control unit, which in turn adjusts the gain of the input musical signal and outputs the resultant gain-adjusted signal to an amplifier. CPU supplies the electronic volume control unit with a sound volume setting level corresponding to an output of a rotary encoder. At the same time, the CPU generates, with reference to stored data of a ROM table, a hue control signal for changing a displaying hue of a three-color light-emitting diode in accordance with the sound volume setting level supplied by the CPU. The CPU takes in a current sound volume setting level when an upper-limit setting switch is activated, and it retains the taken-in level as an upper limit value of various sound volume setting levels that are to be used to change the displaying hue of the light-emitting diode between purple and red hues. As the sound volume setting level is changed from zero to the upper limit value, the displaying hue changes in a stepwise manner.

Abstract: A wind driven electrical power generating apparatus includes a rotor rotating by receiving wind force, a gear assembly having an input shaft connected to the rotor, a generator connected to an output shaft of the gear assembly, a sensor for detecting generating capacity of the generator and a controller for varying gear ratio of the gear assembly based on a signal from the sensor. In this construction, the controller controls so that the generator keeps rotating at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a maximum power operation region of the generator. Alternatively, the controller controls so that rotational speed of the output shaft of the gear assembly is adjusted to at around the lowest rotational speed within a range of rotational speed, the range being determined so as to include a rated power region as an upper operational limit.

Abstract: The invention provides a friction type continuously variable speed changing mechanism having a construction suitable for applications in which it is used to continuously change the speed of an output shaft for driving a high speed rotating body, such as the vane wheel of a centrifugal blower or the like.

Abstract: Plating 5 having good slide friction characteristics is applied onto the pocket surfaces 4a1, 4a2, which are opposite each other in the circumferential direction of the pockets 4a of the carrier and onto the end face 4a3 in the axial direction. It is possible to improve the lubrication conditions at the contacting area of the outer circumferential surface of the planetary rollers and the pocket surface 4a1 of the carrier 4 by coating the plating 5 having good slide friction characteristics onto the pocket surfaces 4a1,4a2 of the pocket 4 of the carrier 4 and further onto the end face 4a3. That is, the friction force at the contacting area is able to be decreased by the plating 5 having good friction characteristics, whereby even in a case where the contacting area is lubricated with a little lubricant, thermal deterioration of the lubricant due to heat generation of the contacting area is suppressed and good lubrication actions can be expected.

Abstract: A friction type continuously variable transmission has double cones kept in contact with an input shaft and a drive cone and is capable of transmitting the rotation of the input shaft to an output shaft so that the output shaft rotates at a higher speed than the input shaft. A mechanism is provided for preventing the double cones from rotating about the input shaft and from coming off of their support shafts. A stay is mounted on a carrier supporting the double cones. The stay carries a guide roller bearing received in a guide fixed to a housing of the transmission. The stay thus prevents the rotation of the carrier while allowing only its axial movement. A stopper surface is provided at one end of the guide to restrict the axial movement of the carrier within a predetermined range.

Abstract: An image display system is disclosed, which comprises a sync signal generator for receiving a clock selected by a clock selection circuit and generating sync signals conforming to a display screen, a timing signal generator for generating various timing signals, a refresh memory for storing pixel data for display on said display screen, a display data processor for converting pixel data read out from the refresh memory into said timing signals, and a display medium having a fixed display resolution for receiving the outputs of said display data processor and sync signal generator for display of data. The image display system further comprises a clock selection controller for either allowing or inhibiting the clock selection by the clock selection circuit.

Abstract: A slidable throttle valve assembly for a carburetor comprising a carburetor body with an intake passage therein, a slidable throttle valve movable across the intake passage, and a throttle valve guide tube connected to the carburetor body and guidably supporting the slidable throttle valve. The carburetor body has guide grooves for guiding the slidable throttle valve which are respectively provided in the body at opposite sides of the intake passage so as to be continuous with the throttle valve guide tube. The throttle valve and guide grooves are of part-circular, cross-sectional shape so that the throttle valve and guide grooves come into contact with each other respectively along lines extending in the sliding direction of the slidable throttle valve downstream of the intake passage.

Abstract: A method of utilizing a memory device for a display device which comprises a parallel combination of an image and a control memory connected to a decoder. At each of addresses assigned to form a color signal, the image memory stores a byte including bits corresponding to green pieces of color information alternating with bits corresponding to red pieces of color information; the control memory stores a byte including four consecutive bits corresponding to blue pieces of color information. The decoder combines associated triads of the red, green and blue bits to form a color signal for a display indicating device.

Abstract: An automobile repair estimate issuing device having a part data file made up of a first file for storing part data other than name data and a second file for storing the name data. The data file is stored in a memory having a reduced memory capacity. Input and output devices, a central processing device, the memory and a printing devices are reduced in size and weight thereby to provide a portable type automobile repair estimate issuing device which can issue a repair estimate at an automobile repairing place on the spot.