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WO/1995/033145A1 |
The invention relates to a planetary gear type or frictional wheel type speed reducer (10-10E), in which in order to obtain a practical construction of a planetary gear type or frictional wheel type speed reducer having a simple construc...
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WO/1995/016861A1 |
The present invention relates to an electric fan employing three impellers which are so implemented as to receive the driving force of the motor M, and more particularly, to an electric fan equipped with the second crank device (1200) an...
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WO/1994/024460A1 |
A mechanical device for rotation speed reduction, multiplication and variation consisting of a combination of two coaxial crown wheels of which one (6) is stationary or conditionally movable and rigidly connected to the reducer body (11)...
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WO/1994/021940A1 |
The invention relates to a mechanical gearing (1). This comprises a frame, a first shaft (2) mounted rotatably on the frame and carrying a pair of friction wheels (3, 4) which are disposed at a distance from each other and which have mut...
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WO/1994/012811A1 |
A roller drive assembly comprises a drive spindle (1), at least two planet rollers (4) each in driving contact with said spindle and an outer annulus (5, 6) with which each planet roller has two distinct engagement zones. For each zone a...
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WO/1992/014572A1 |
An arrangement for driving a rotary tool (17) is provided in which the tool shank (18) is engaged and frictionally driven by the engagement of three or more drive rollers (14, 15, 16). Axial movement of the tool (17) is accomplished by t...
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WO/1991/016558A1 |
A speed reducer with frictional wheels for machines having a high rotation speed, of the kind which has a double planetary gear train. Said speed reducer uses, between a primary rotor (2) and the output shaft (3) of a driven rotor, the m...
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WO/1991/013272A1 |
The present invention provides a compact speed increasing device which may be mounted upon the way tubes of a powered multi-purpose woodworking tool. The speed increasing device includes a horizontal input shaft (46) for connection to th...
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WO/1990/012224A1 |
A drive mechanism (10) or transmission for transmitting power and/or motion to an object includes an input driving member (14), an output driven member (26), and a rigid coupling member (36). By changing the arrangement of the driving an...
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WO/1989/007212A1 |
A planetary transmission comprises a casing, a driven and a driving shaft with an unbalance on which are mounted a first link shaped as a disk (6), the second and the third links located on both sides of the first link and provided, on t...
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WO/1989/005261A2 |
A marine trolling propulsion system (2) has a lower submerged housing (4) including an electric motor (5) driving a propeller (6) through a reducing traction drive provided by rolling contact of three balls (57-59) between split inner ra...
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WO/1988/005138A1 |
A continuously variable transmission (24) has a driving pulley (12) and a driven pulley (14) each of which has a V-shaped groove (24, 26) in which sits the belt (28). The belt (28) comprises a base portion (84) of a rubber-like compound ...
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WO/1986/001572A1 |
The automatic friction wheel torque converter enables a bearing-free adjustable force transmission, with different loads and speeds, for example in electric vehicles or machines. Said converter is simple, economical and has a high effici...
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WO/1984/003688A1 |
The assembly comprising a motor unit (9), the driving pulley (8), the take-up pulley (6), the movable groove roller (3) is pivotingly mounted with respect to the fixed pressure roller (2) by means of a jack (19) of which the piston (21) ...
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WO/1984/000590A1 |
A friction drive device for a capstan of a tape recorder has a capstan (4) and a friction wheel (8) for transmitting rotational force when in contact with a flywheel (9), to which the capstan (4) is attached. It also comprises a support ...
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WO/1979/000057A1 |
A device for machining the surface of workpieces having irregular contours, having the form of a rotating body set against the surface to be machined and which periphery carries the tools for machining the surface of the workpiece, the r...
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JP2024051493A |
An object of the present invention is to provide a wheel unit that can suppress an increase in the size of the wheel unit in a direction along a rotation axis of a wheel portion. A wheel unit DV includes a wheel part 5 and a pair of driv...
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JP2024036726A |
An object of the present invention is to provide a power transmission mechanism that can ensure stability during operation and can be reduced in size. A first roller and a second roller of a power transmission mechanism 1 rotate with rot...
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JP2024036186A |
The present invention provides a driving force transmission device and a rotation mechanism that allow a plurality of roller support sections to be easily assembled to a roller placement section. A driving force transmission device inclu...
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JP7449887B2 |
This friction transmission device 100 comprises a shaft 12, an input race 14 disposed on the outer periphery of the shaft 12, a planetary rolling element 20 that is disposed around a rotation axis La of the input race 14 and that is in c...
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JP7448111B2 |
To provide a structure capable of entirely downsizing a device.A hybrid reduction gear 1 comprises a first reduction mechanism 40 and a second reduction mechanism 50. A planetary friction speed reduction mechanism is used for the first r...
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JP7441935B2 |
A variety of transmissions, and improvements thereof, are provided having improved efficiency and other benefits. The transmissions include one or more inner members that are driven by one or more cams or other means to engage in precess...
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JP7428104B2 |
To provide a centrifugal compressor capable of supporting an outer ring of a bearing while suppressing abrasion of an inner ring of a bearing that supports a movable roller, and capable of reducing the size of a speed increaser.A third s...
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JP7422939B2 |
Provided is a transmission (10) with which the structure of a carrier can be simplified. This transmission is provided with: a sun roller (12) having a center axis (O); a ring roller (15) that is arranged coaxially with the center axis o...
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JP7408464B2 |
A rotary drive device includes a pair of drive force transmissions, a pair of decelerators, a pair of carriers, and at least one coupler. Driving rollers are included in the pair of drive force transmissions. Driving rollers transmit dri...
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JP2023175453A |
To provide a viscoelasticity addition device which can materialize high-gain feedback control without using viscous fluid.A viscoelasticity addition device comprises: an inside frame fixed to a rotary shaft: an outside fixed frame having...
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JP7380979B2 |
To provide a structure which is reducible in a size, reducible in a cost by suppressing the number of part items, and excellent in a silence characteristic.A transmission 3 for transmitting a rotation motion of an electric motor 2 has a ...
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JP7372217B2 |
A manufacturing apparatus for a drive disk includes: an upper member and a lower member each including a base and protrusions. Each protrusion is defined by a plurality of surfaces including a first side surface inclined with respect to ...
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JP7367351B2 |
A multi-stage planetary roller power transmission device includes a high-speed power transmission mechanism including a first sun shaft, a first fixed ring, first planetary rollers disposed between the first sun shaft and the first fixed...
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JP2023154741A |
To fix a roller to a support member easily in a friction roller type speed-increasing gear.A friction roller type speed-increasing gear 10 includes: an input shaft 11 having a cylindrical ring member 22; an output shaft 12 disposed at th...
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JP2023149490A |
To provide a friction transmission device capable of further improving a service life.A friction transmission device 100 comprises: an input bearing ring 14; a planetary rolling element 20 that is arranged around a rotational axial line ...
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JP2023149491A |
To provide a friction transmission device which can apply more stable pressing force.A friction transmission device 100 of an embodiment includes: a planetary rolling element 20 disposed around a rotary shaft; a first bearing ring 30 and...
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JP2023148139A |
To provide a power transmission device capable of suppressing speed unevenness of rotary motion output from one of a first motion member and a second motion member.A power transmission device includes a first motion member having N piece...
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JP2023149493A |
To provide a friction transmission device capable of improving the degree of freedom in selecting a motor.A friction transmission device 100 comprises: an input shaft 64 to which the rotation of a drive source is input; an input bearing ...
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JP2023149492A |
To provide a friction transmission device capable of reducing decrease of transmission torque.A friction transmission device 100 comprises: an input bearing ring 14; a planetary rolling element 20 that is arranged around a rotational axi...
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JP2023149489A |
To provide a friction transmission device capable of reducing surface pressure.A friction transmission device 100 comprises: an input bearing ring 14; a planetary rolling element 20 arranged around a rotational axial line of the input be...
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JP7349960B2 |
Drive disks are configured to rotate a main wheel by applying a frictional force thereto. Each of the drive disks includes a base and a plurality of rollers. The base includes a first sheet metal member and a second sheet metal member. T...
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JP7349959B2 |
Drive disks are configured to rotate a main wheel by applying a frictional force thereto. Each of the drive disks includes a base and a plurality of rollers. The base includes a first sheet metal member and a second sheet metal member. T...
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JP7345421B2 |
A rotary drive device in a mobile body includes a main wheel and a pair of drive assemblies opposing each other and each driving the main wheel. The main wheel includes driven rollers. One of the pair of drive assemblies includes a motor...
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JP7317851B2 |
An electric drive includes a motor and a transmission for transferring torque from the motor to a tool. The transmission includes a plurality of planetary rollers which are driven by a rotary shaft of the motor, and an output ring which ...
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JP2023092017A |
To provide a steering reaction force generator capable of suppressing and stably controlling noise.A steering reaction force generator 10 includes an axial gap type electric motor 30 that is coaxial with the turning axis of a steering wh...
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JP2023066534A |
To realize a structure capable of easily securing rigidity and strength of a carrier while preventing a surface pressure of an outer diameter side traction part from increasing unnecessarily.Regarding a direction of a torque reaction for...
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JP7274079B2 |
To provide a technique for stabilizing a speed ratio, in a planetary roller-type differential reduction gear.A roller-type differential reduction gear comprises: a first ring; a second ring connected to an output member; a third ring inc...
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JP2023060973A |
To reduce the noise and vibrations of a speed converter, and to improve efficiency.A speed reducer 16 that is a speed converter includes a planetary gear mechanism 28 and a planetary roller mechanism 30 of the same type arranged in paral...
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JP7265287B2 |
The present disclosure relates to a frictional wave reducer mainly used for industrial robot joints and having an operating principle modified from that of a conventional strain wave gearing, which includes a wave generator having a coni...
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JP7264701B2 |
A planetary traction drive for a driven turbocharger utilizes angular contact ball ramps to provide variable clamping depending on torque throughput. The ball ramps are located between ring rollers and a ring gear, and function to locate...
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JP2023032309A |
To provide a speed reduction mechanism capable of reducing its size, securing a high reduction ratio, improving a transmission torque capacity and realizing stability during operation.A speed reduction mechanism 1 comprises a rotational ...
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JP7235217B2 |
To provide a friction transmission-type reduction gear which can enhance a reduction ratio while being small in size.A sun roller 10 of a friction transmission-type reduction gear 100 rotates with a rotating shaft 9 as a center. A plural...
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JP2023028716A |
To provide a transmission that can suppress increase in the number of components while securing a relatively large gear ratio.A transmission includes a power transmission element in which a first planetary roller coming internal contact ...
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JP2023014445A |
To constrain rotation of an internal gear and release the constraint of the rotation by a simple configuration.A planetary gear device 10 for transmitting the rotation of an input shaft 60 to an output shaft includes: a sun gear 40 coupl...
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