Freewheel Clutches TRIZ Cases

Radial wave-like spring body fills narrow clamping gap to secure clamping element support without increasing axial overall length of freewheel.

Radially segmented drag rings prevent aluminum wear via steel sleeves while maintaining bi-directional torque transfer in overrunning applications.

Integrated solenoid and ratchet design reduces bulk and weight while providing bidirectional rotational control.

A one way clutch retainer uses varied spring constants to bias torque transmission members toward engagement positions.

A clutch system applies negative torque to a rotational plate to rotate a selector plate toward a release position.

Replacing mechanical springs with magnetic fields reduces the height of the stopper structure, enabling compact cord winding modules.

Segmented driving and driven ratchets allow pawls to slide over complementary surfaces instead of knocking, reducing energy loss and wear.

Segmented rocker plates with radial mounting portions reduce axial height and pin load while enabling controlled freewheeling under centrifugal forces.

Asymmetric locking element counts create distinct backlash ratios that prevent inadvertent binding in both directions.

An inclined surface on a notch plate generates separating force to prevent strut sticking from oil surface tension at high speeds.

A fixation structure for a selectable one-way clutch uses a pocket plate strut to engage a notch plate via leverage.

Segmented cages with freewheels prevent back-torque transmission, reducing friction losses while maintaining a compact 1:1 rotational speed ratio.

A one-way clutch uses inward facing cams and self-locking grippers to lock rotation in one direction.

A cam clutch incorporates a groove on the ring periphery to provide escape space for the annular spring during cam rotation.

A three-way switchable clutch uses a selector ring and wave spring to engage pawls for specific rotational locking modes.

Replacing metallic springs with elastic cage webs simplifies manufacturing and improves reliability.

Drafted side surfaces on the locking member minimize frictional variation to control strut laydown speed and reduce ratcheting noise.

A tapered outer shell aligns axial centers in a selectable one-way clutch, reducing impact forces during meshing.

Spherical contact surfaces restrict planetary gear tilt in a one-way clutch, reducing idling torque from 286 mN·mm to 77 mN·mm.

Pivotal motion of the locking member reduces disengagement force required during torque transfer operations.

A one-way clutch assembly uses an undulating spline profile on the housing to engage transmission components for directional rotation control.

Compression springs maintain radial force on locking elements to prevent spool core displacement when tension releases.

Segmented retention cavities constrain reversal-preventing pawls to reduce frictional resistance and prevent shifting during hub rotation.

A releasable freewheel clutch uses a ring-shaped blocking element to pivot pawls for positive gear engagement.

Segmented wedge plates with radial ramps engage via distributed springs, resolving non-uniform loading and premature lock-up in large diameter clutches.

A multimode clutch module uses pawls and cams to selectively disconnect drive wheels.

An axially offset actuator rotates a selector member through a connecting arm, reducing radial dimensions and stroke length while preventing interference.

A switchable one-way clutch uses a selector bracket assembly to transition between locked and free-wheel states in both rotational directions.

Spring-loaded actuation plates enable complete disengagement of helical or jaw teeth, eliminating frictional losses from mechanical sliding.

A controllable coupling assembly with a retainer mechanism isolates locking member forces during overrun conditions.

A cam stop transmits rotational force via frictional engagement between a logarithmic spiral cam rod and a driving tire ring.

Curved engagement surfaces eliminate sliding friction in a pin and pawl overrunning clutch, reducing wear and manufacturing complexity.

Curved race surfaces eliminate pawl backlash, preventing driveline jolts during mode switching.

A guide member stabilizes the spring attitude in a ratchet one-way clutch, preventing deformation and ensuring consistent pawl engagement.