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Patent Searching and Data


Matches 701 - 750 out of 12,585

Document Document Title
WO/1992/021894A1
This invention includes a belt tensioner (10) in combination with a variable speed drive (8), which tensioner (10), upon command, uses a pump (26) continuously driven by a fixed diameter pulley (18) positioned by a rotary actuator (16) t...  
WO/1992/018792A1
Prior art transmission with positively interlocking parts suffer from the disadvantage that they cannot be varied continuously. This results in complicated shift procedures and losses in power. The aim of the invention is to propose a tr...  
WO/1992/017718A1
A toothed wheel with a variable number of teeth has a toothed ring (4) formed by a driving chain (2) or belt. The reference diameter of the toothed wheel can be modified by adding or removing individual links (1) by means of an auxiliary...  
WO/1992/016773A1
A bicycle gear shifting system (10) having rotatable front and rear handgrip shift actuators (60, 66) operatively associated with control cables for shifting respective front and rear derailleur mechanisms. In some forms of the invention...  
WO/1992/008911A1
In a vehicle run by a driving source such as an engine and a motor, a groove width of a drive pulley (19) of a non-stage transmission (B) is increased or decreased by a change gear ratio changing means (61) using a motor (62) as its driv...  
WO/1991/019918A1
A drive device (7) with variable transmission ratio to the drive of an auxiliary aggregate of a motor vehicle has a belt pulley (11) with a chamber (38) connected to a hydraulic medium reservoir (30). The centrifugal action of the hydrau...  
WO/1991/017373A1
A reversible drive mechanism (25) comprises a pair of pulleys (33, 34) mounted for contrarotation on a driven shaft (31). A clutch assembly having clutch plates (36, 42) is selectively engageable with the pulleys (33, 34) to rotate the d...  
WO/1991/014613A1
The invention relates to a variable ratio drive mechanism which operates to adjust the path of an endless drive belt (34) in response to a remotely located control input. Circumferentially spaced sheave segments (32) include multiple cam...  
WO/1991/013271A1
In known step-by-step variable gears, no torque is transmitted to the drive train during gear shifting. The new process overcomes this drawback and at the same time ensures an optimal torque profile. During gear shifting, an additional g...  
WO/1991/011594A1
Rotational control apparatus in the form of fan clutches (C) are disclosed including a first, friction disc portion (12) splined on a hub (20) in turn rotatably mounted on a shaft (24). The friction disc portion (12) is reciprocal betwee...  
WO/1991/004188A1
A tensioning system having an endless belt (58), a pair of sheaves (62, 64) which are independently movable between reduced and enlarged configurations, a pair of rollers (102) are rotatably mounted at fixedly spaced locations on an elon...  
WO/1991/003667A1
A tensioning system having an endless belt (58), a pair of sheaves (62, 64) which are independently movable between reduced and enlarged configurations, a pair of rollers (102) are rotatably mounted at fixedly spaced locations on an elon...  
WO/1991/001228A1
A drive transmission (10) comprising a carrier member (32) is mounted on a rotatable crank shaft (16) a plurality of spaced, pivotally mounted segments (58) each segment carrying a rotatable drive element. A roller chain (76), is coupled...  
WO/1991/000446A1
A steepless speed change gear of mechanical type, designed to accomplish changes in the transmission ratio between a driving shaft (1) and at least one driven shaft (2), parallel to each other, which shafts are provided with external par...  
WO/1990/015940A1
A continuously variable transmission system having a variable diameter pulley (10) connected by a drive belt (12) to at least one other pulley (14). A tensioner pulley (18) maintains the tension of the drive belt (12) within predetermine...  
WO/1990/015942A1
A variable diameter pulley assembly (12) having an array of belt engaging elements (26) arranged in a circular pattern having a diameter variable as a function of the relative rotational orientation of supporting inner disk members (32, ...  
WO/1989/007724A1
The invention relates to an infinitely variable gear with which the belt pulleys arranged on the driving shaft and on the driven shaft carrying the all around running V-belt consist of the pulley-half each fixed rigidly onto the shaft an...  
WO/1989/005936A1
A continuously variable transmission comprising driving and driven pulley assemblies (10, 12), each having a circumferential array of radially adjustable belt engaging elements (18), is disclosed in conjunction with a control system (86)...  
WO/1989/002043A1
This invention relates to a stepless belt transmission (30) which is applied mainly to an automatic transmission mounted on an automobile and which has a pressure regulating cam mechanism (34) adapted to apply an axial force, which refle...  
WO/1989/002044A1
This invention relates to a stepless belt transmission (30) which is applied mainly to an automatic transmission mounted on an automobile and which has a pressure regulating cam mechanism (34) adapted to apply an axial force, which refle...  
WO/1988/009887A1
An automatic infinitely-variable speed adjuster is composed of two expanding pulleys linked by a belt (1). Each pulley consists of 12 sectors (2) sliding in 12 grooves (5) in each plate (6). Two control discs (9) are operated each by a p...  
WO/1988/009455A1
A continuously variable transmission having a flat belt (13, 43) extending between driving (11, 40) and driven (12, 41) pulley assemblies, each having a circumferential array of radially adjustable belt engaging elements (18, 64, 65). Th...  
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 ...  
WO/1988/000664A1
Speed variator comprising a driving shaft (1) and a driven shaft (2) which carry each a pulley (3, 5) with two side-plates (4, 6) of variable spacing, an endless chain or belt (7) connecting both pulleys. Magnetic fields parallel to the ...  
WO/1987/007932A1
A variable transmission automatically changing its transmission ratio in accordance with the resistance to propagation of the vehicle, in which the force-transmitting transmission link is a V-belt (1) or equivalent and in which at least ...  
WO/1987/007934A1
A variable transmission automatically changing its transmission ratio in accordance with the resistance to propagation of the vehicle, in which the power-transmitting transmission link is a V-belt (1) or equivalent and in which at least ...  
WO/1987/007933A1
A variable transmission automatically changing its transmission ratio in accordance with the resistance to propagation of the vehicle, in which the power-transmitting transmission link is a V-belt (1) or equivalent and in which the prima...  
WO/1987/007693A1
In a continuously variable belt transmission system utilizing a drive pulley (11) and a driven pulley (12) having logarithmic spiral guideways (32-36) in the pulley disks (18, 19, 21, 22), the balance actuator torque is reduced significa...  
WO/1987/003054A1
Process and device for setting gear elements in an axial direction, for example shafts (5), discs, wheels, tapered discs (71), which are arranged parallel to one another, for fine adjusting of production tolerances. For this, an adjustme...  
WO/1987/001425A1
The objects are a V-belt pulley and drive relating to V-belt transmissions, where the belt is a die-cut type without changes in the construction in the lateral direction. The aim is to improve efficiency and safety of fucntion, in partic...  
WO/1986/005247A1
An automatic shifter for derailleur which includes a pivot arm (42) secured to the frame (38) of the bicycle in a stationary relationship. A shifter arm (44) pivotally secured to the pivot arm in a manner to rotatively move relative to t...  
WO/1983/004291A1
A transmisson belt for use in a constantly variable power transmission of the type utilising pulleys of variable effective diameter, the transmission belt comprising a plurality of identical links of substantially trapezoidal form, havin...  
WO/1983/001098A1
An automatic transmission to automatically change the gear ratio in response to changes in torque applied at the pedals. A reference wheel (22) is rotated by the pedal crank (14) and includes a pair of first and second radial slots (24 a...  
WO/1979/000522A1
A variable speed pulley and belt drive system (10) for use with bicycles, and for industrial drives, and the like. The system utilizes a variable diameter pulley and belt take-up member (22) to compensate for changes in the pulley diamet...  
JP2020034107A
[Subject] The rigidity of a pulley is improved. [Means for Solution] It is support structure 1 of a pulley in a belt-type gearless drive mechanism which has a primary pulley, a secondary pulley, and belt 5 almost wound around these, and ...  
JP2020034108A
[Subject] Oil is appropriately supplied to a centrifugal oil pressure cancellation room. [Means for Solution] Fixed pulley 41 in which gearless drive mechanism 1 has axial part 411 in which oilway 413 within an axis was provided, It has ...  
JPWO2019035360A1
The element of the transmission belt almost wound around the pulley of a gearless drive mechanism, The locking edge part of the shape of a convex curve containing the line of contact of both who become a fulcrum of rotation of the elemen...  
JP6654931B2  
JP2020026830A
[Subject] Even if it is a case where a belt fractures temporarily by managing a crevice between a case and a pulley, stepless speed variator which can control damage to a case and a lock of a pulley axis is provided. [Means for Solution]...  
JP2020026820A
[Subject] A belt type gearless drive mechanism which can prevent easily omission from a link plate of a locker pin in a chain belt is provided, without causing a big cost rise. [Means for Solution] It is a both-ends portion [ in / to gui...  
JP6650388B2  
JP6645382B2  
JP6648673B2  
JP6647984B2  
JP2020024001A
[Subject] Without complicating composition of a chain belt, omission of a pin in a chain belt or a link can be controlled, and, moreover, a belt type gearless drive mechanism which can reduce member cost and processing cost is provided. ...  
JP2020020350A
[Subject] A belt type gearless drive mechanism which can control increase of a wheel base and can be miniaturized is provided. [Means for Solution] Flute widths 11 and 17 around which belt 6 is wound almost are changed continuously, In b...  
JP6639324B2  
JP6639932B2  
JP2020016293A
[Subject] Stepless speed variator provided with oil pressure cancellation structure where a blank of a ring member which regulates movement of a cover member which divides an oil pressure cancellation room under cryogenic temperature env...  
JP6637796B2  

Matches 701 - 750 out of 12,585