Abstract: An in-wheel motor drive device includes a motor part, a speed reducer part, a wheel bearing part, a casing, and a lubrication mechanism that supplies lubricating oil to the motor and speed reducer parts. A rotation shaft of a motor in the motor part drives an input shaft of a speed reducer. The speed reducer part reduces a rotation speed of the input shaft and transmits the rotation to an output shaft. The lubrication mechanism includes an oil path in the speed reducer part, which discharges oil inside the speed reducer part to the motor part, and an oil path in the motor part, which discharges oil inside the motor part to an oil tank together with the oil from the speed reducer part. The motor part includes a partition plate that guides the oil from the speed reducer part to the oil path in the motor part.

Abstract: An object of the present invention is to prevent lubricant oil of a speed reduction unit from moving to an electric motor side and besides to prevent an eccentric load from acting on bearings supporting an input shaft. In a drive device for an electric vehicle including: a speed reduction unit including an input shaft driven by output of an electric motor; a hub unit rotationally driven by an output member of the speed reduction unit; and a housing accommodating the electric motor and the speed reduction unit, the configuration is made such that a partition for partitioning an accommodation section into respective accommodation spaces of the electric motor and the speed reduction unit is provided in the housing, and an oil seal member is placed between a peripheral edge portion of a center hole of the partition and a rotor support member the electric motor.

Abstract: A suspension structure includes a pair of trailing arms (12) each having at its front end a pivot (14) that is attached to a vehicle body, a beam member (13) connecting the pair of trailing arms, and a pair of in-wheel motor drive devices (31) coupled and fixed to rear end regions of the trailing arms. The position of the pivot (14) in a lateral direction of a vehicle is included in a range A, B, and C from an inner end to an outer end of the in-wheel motor drive device (31) in the lateral direction of the vehicle.

Abstract: Certain embodiments provide an image forming apparatus, comprising: an authentication section configured to identify a user in the vicinity of an apparatus through a personal authentication; a determination section configured to determine user identification information different from the identification information of a registrant among the user identification information of a plurality of users and other job categories that can be used in the execution of the job; and a display section configured to display the user identification information and the other job categories.

Abstract: A plurality of circumferential fins 22g are formed on an outer peripheral surface of a motor casing 22a, and a plurality of fins 22f are formed on an outer surface of a motor rear cover 22d. Lubricant circulates in a motor-casing oil passage 55 provided in the motor casing 22a, a motor-rear-cover oil passage 56 provided in the motor rear cover 22d, and a speed reduction portion B. This lubricant is cooled when flowing in the motor-casing oil passage 55 and the motor-rear-cover oil passage 56. Thus, an in-wheel motor drive device 21 is efficiently cooled.

Abstract: A wheel driving device includes a speed reducer for transmitting rotation of an electric motor to a hub ring supporting a vehicle wheel after reducing its speed. The speed reducer is a cycloid speed reducer including an external gear, and an internal gear meshing with the external gear and rotationally fixed to the speed reducer casing through a rotational fixing arrangement which is also capable of elastically supporting the internal gear. The rotational fixing arrangement absorbs, by elastic deformation, vibration of the internal gear due to torque transmitted from the external gear to the internal gear, thereby preventing the vibration of the internal gear from being transmitted to the speed reducer casing.

Abstract: A medical treatment tool (10) includes a retractor main body (30) and a converter (20). The retractor main body (30) forms a cylindrical shape and is placed in an incision. The converter (20) is detachably installed on an opening end (32) of the retractor main body (30) and closes the opening end (32). Ports (22a) to (22d) through which treatment tools are respectively inserted into the retractor main body (30) are provided in a plurality of sites of the converter (20). The converter (20) can be installed on the opening end (32) at an installation angle which is selected from a plurality of angles. The positional relationships of the ports (22a) to (22d) with respect to the retractor main body (30) when the converter (20) is installed on the opening end (32) at the respective installation angles become different from each other.

Abstract: A cooling structure for an inverter (31) controls a motor (6) to drive an automobile. This inverter device (22) includes a power circuit section (28) having an inverter (31) to convert a DC power of a battery (19) to an AC power for the motor (6), and a casing (39) enclosing the power circuit section (28). A fin (41) is provided in an outer surface of the casing (39), a coolant path (42) for the flow of a cooling medium is provided within the casing (39) or in the outer surface thereof, and a pump (43) circulating the cooling medium in the coolant path (42) is disposed on or in the casing (39). With this structure, the flow resistance for cooling the inverter (31) is reduced to allow the pump (43) to be downsized and a proper cooling can be accomplished to the amount of heat by the inverter (31).

Abstract: An in-wheel motor drive device includes a motor part, a speed reduction part, a wheel bearing part, and a casing configured to hold those parts. The motor part is configured to rotationally drive an input shaft of a speed reducer having eccentric portions. The speed reduction part is configured to reduce a speed of rotation of the input shaft of the speed reducer to transmit the rotation to an output shaft of the speed reducer. The wheel bearing part is connected to the output shaft of the speed reducer. The speed reduction part includes a lubrication mechanism for the speed reduction part, which is configured to supply lubricating oil to the speed reduction part. Rolling bearings configured to support the input shaft of the speed reducer are ball bearings each having an initial radial internal clearance of from 10 ?m to 60 ?m.

Abstract: A drive device for an electric vehicle includes: a speed reduction unit including an input shaft driven by output of an electric motor; a hub unit rotationally driven by an output member of the speed reduction unit; and a housing accommodating the electric motor and the speed reduction unit. The drive device is provided with a power supply terminal box made up of: an accommodation recessed portion provided in a rear end surface of the housing; a power supply terminal provided inside the accommodation recessed portion; a communication hole in communication with the accommodation recessed portion and an interior of the housing; and a cover member for the accommodation recessed portion.

Abstract: An in-wheel motor driving device includes a wheel braking device. A back plate of a drum brake or a mounting member for calipers of a disc brake constituting the wheel braking device is formed integrally with an outboard-side end member which is fastened to a outboard-side end surface of a housing of a speed reducer section.

Abstract: A drive device for an electric vehicle in which, by improving a supporting structure of an input shaft of a speed reduction unit, the bearing stiffness of a hub bearing is improved, while the rotational accuracy and the durability of an input shaft of a speed reduction unit are improved and noise is suppressed. The drive device includes: a speed reduction unit including an input shaft driven by an electric motor; a hub unit rotationally driven by the speed reduction unit; and a housing. The input shaft of the speed reduction unit is supported by bearings provided at two locations in the axial direction. The bearings are both supported by the output member, and the PCD of the inboard-side hub bearing of the hub bearings disposed at the two locations in the axial direction of the hub unit is larger than the PCD of the outboard-side hub bearing.

Abstract: An in-wheel motor driving device in which a motor section A and a wheel hub bearing section C are connected coaxially in series via a speed reducer section B, whereby an axial dimension of the in-wheel motor driving device is reduced to provide a large inside space of a vehicle as well as an increase in freedom of routing a power supply wires. A terminal box for the power supply wires which supply power to the motor section A is disposed on the outer circumferential side surface of the housing which holds the motor section A. The power supply wires are routed out of the terminal box to an inboard side and are anchored by a power supply wire holder which extends perpendicularly to an axial centerline of the housing.

Abstract: According to one embodiment, a projection apparatus including: a first screen; a projection unit configured to project an image on a projection area including the first screen; a second screen configured to be capable of being disposed at a position within the projection area of projection by the projection unit and away from the first screen; a shifting mechanism configured to shift the second screen; and a screen controller configured to shift the second screen by the shifting mechanism in accordance with an image which is projected by the projection unit.

Abstract: In a configuration where a left and a right wheels are driven individually by a plurality of drive-motor units mounted on a vehicle body, power transmission members which are provided by constant-velocity joints have a small operation angle made by their input shafts and output shafts for improved life of the constant-velocity joints. Left and right wheels are individually driven by a plurality of drive-motor units, which are mounted onto a vehicle body via a sub-frame, so that each power transmission member provided by a constant-velocity joint has a small operation angle made by its input shaft and output shaft.

Abstract: In accordance with one embodiment, a printing apparatus comprises a conveyance section, a print head, an erasing head, a cutter and a control section. The conveyance section conveys roll paper. The print head carries out printing with color erasable ink on the roll paper conveyed forward by the conveyance section. The erasing head erases the color of the color erasable ink printed on the roll paper conveyed backward by the conveyance section. The cutter cuts the roll paper printed by the print head. The control section determines whether or not to cut the roll paper by the cutter, controls the conveyance section to convey the roll paper backward in a case of not cutting the roll paper, and controls the erasing head to erase the color of the color erasable ink printed on the roll paper.

Abstract: To provide a sensor equipped and in-wheel motor incorporated bearing device for a vehicle wheel, which is capable of accurately detecting a rotating condition of a vehicle drive wheel and is effective to accurately control an electric drive motor or an automotive vehicle, the sensor equipped and in-wheel motor incorporated bearing device includes a wheel support bearing assembly for rotatably supporting a hub of the vehicle drive wheel, an electric drive motor providing a rotation device source for the vehicle drive wheel, and a speed reducing mechanism interposed between the electric drive motor and the wheel support bearing assembly. A rotation detecting device is also provided for detecting the rotation of an output shaft of the speed reducing mechanism.

Abstract: An in wheel motor driving device which has a deceased axial dimension and includes aluminum alloy housings having a minimum wall thickness for reduced weight while retaining good assemblability. An in-wheel motor driving device includes: a motor section which has an output shaft; a wheel hub bearing section C; and a speed reducer section which connects the output shaft of the motor section and the wheel hub bearing section coaxially with each other. A housing outer circumferential portion of the motor section and a housing outer circumferential portion of the speed reducer section are integral with each other, being provided by one, outer circumferential member. An outboard-side end member is fixed to an outboard-side end of the outer circumferential member by means of bolts, and the wheel hub bearing section has its fixing ring fixed to the outboard-side end member.

Abstract: A medical treatment tool (10) includes a retractor main body (30) and a converter (20). The retractor main body (30) forms a cylindrical shape and is placed in an incision. The converter (20) is detachably installed on an opening end (32) of the retractor main body (30) and closes the opening end (32). Ports (22a) to (22d) through which treatment tools are respectively inserted into the retractor main body (30) are provided in a plurality of sites of the converter (20). The converter (20) can be installed on the opening end (32) at an installation angle which is selected from a plurality of angles. The positional relationships of the ports (22a) to (22d) with respect to the retractor main body (30) when the converter (20) is installed on the opening end (32) at the respective installation angles become different from each other.

Abstract: A suspension structure includes a pair of trailing arms (12) each having at its front end a pivot (14) that is attached to a vehicle body, a beam member (13) connecting the pair of trailing arms, and a pair of in-wheel motor drive devices (31) coupled and fixed to rear end regions of the trailing arms. The position of the pivot (14) in a lateral direction of a vehicle is included in a range A, B, and C from an inner end to an outer end of the in-wheel motor drive device (31) in the lateral direction of the vehicle.