Abstract: One aspect is a friction hinge system including a housing having an inner surface, an outer surface and defining a substantially cylindrical opening and a longitudinal slot. A torque element assembly is configured within the housing and configured to extend through the slot thereby securing the torque element assembly relative to the housing.

Abstract: A wrap spring device includes a first hub and a second hub located axially to the first hub. A wrap spring is located externally and concentrically about the first and second hubs and glycol-based solution surrounds the spring. The spring is engaged and disengaged thereby causing the first and second hubs to engage and disengage each other.

Abstract: A wrap spring device includes a first hub and a second hub located axially to the first hub. A wrap spring is located externally and concentrically about the first and second hubs and glycol-based solution surrounds the spring. The spring is engaged and disengaged thereby causing the first and second hubs to engage and disengage each other.

Abstract: An overmolded hinge includes a first bracket, a second bracket, a shaft assembly and a first washer. The second bracket is hinged relative to the first bracket. The shaft assembly further includes a shaft and the shaft extends through at least a portion of each of the inner and outer brackets. The first washer is fitted over the shaft and is located between the first and second brackets. The first and second brackets are molded over the shaft assembly and are molded within mold inserts during an overmolding process. The first washer is supported by the mold inserts such that no portion of the shaft assembly contacts the mold insert during the overmolding process.

Abstract: A wrap spring clutch including a drive shaft, an output hub, a shoulder, a hub, a wrap spring, a bushing, and a control ring. The drive shaft is configured to rotate about an axis. The output hub is mounted over the drive shaft and is configured with a first groove. The shoulder is fixed to the drive shaft and configured to rotate therewith. The hub is fixed to the drive shaft and is configured to rotate therewith. The wrap spring is helically wrapped about the drive shaft and over the hub. The wrap spring also includes a first wrap end and a second wrap end. The first wrap end is press fit into the first groove. The bushing is mounted over the drive shaft and the bushing has a first portion and a second portion. The first portion is coupled between the drive shaft and the second wrap end. The control ring is mounted over the drive shaft and fixed to the second portion of the bushing thereby defining a second groove. The second wrap end is press fit into the second groove.

Abstract: A variable speed slip clutch is provided. The clutch has an output shaft, a first and second input hub, and output hub, a wrap spring and a control hub. In one embodiment, the clutch includes a source coupler coupled to a first and a second input drive. The output shaft is configured to rotate. The first input hub is coupled to the first input drive and configured to rotate about the output shaft in a first direction. The second input hub is coupled to the second input drive and configured to rotate about the output shaft in a second direction opposite the first direction. The output hub fixed to the output shaft and configured to rotate therewith. The wrap spring has a first and a second end. The first end of the wrap spring is fixed to the output hub such that the first end of the wrap spring rotates with rotation of the output hub. The control hub is coupled to the second end of the wrap spring. In one embodiment a control motor is provided and coupled to the control hub.

Abstract: A wrap spring clutch including a drive shaft, an output hub, a shoulder, a hub, a wrap spring, a bushing, and a control ring. The drive shaft is configured to rotate about an axis. The output hub is mounted over the drive shaft and is configured with a first groove. The shoulder is fixed to the drive shaft and configured to rotate therewith. The hub is fixed to the drive shaft and is configured to rotate therewith. The wrap spring is helically wrapped about the drive shaft and over the hub. The wrap spring also includes a first wrap end and a second wrap end. The first wrap end is press fit into the first groove. The bushing is mounted over the drive shaft and the bushing has a first portion and a second portion. The first portion is coupled between the drive shaft and the second wrap end. The control ring is mounted over the drive shaft and fixed to the second portion of the bushing thereby defining a second groove. The second wrap end is press fit into the second groove.

Abstract: A variable speed slip clutch is provided. The clutch has an output shaft, a first and second input hub, and output hub, a wrap spring and a control hub. In one embodiment, the clutch includes a source coupler coupled to a first and a second input drive. The output shaft is configured to rotate. The first input hub is coupled to the first input drive and configured to rotate about the output shaft in a first direction. The second input hub is coupled to the second input drive and configured to rotate about the output shaft in a second direction opposite the first direction. The output hub fixed to the output shaft and configured to rotate therewith. The wrap spring has a first and a second end. The first end of the wrap spring is fixed to the output hub such that the first end of the wrap spring rotates with rotation of the output hub. The control hub is coupled to the second end of the wrap spring. In one embodiment a control motor is provided and coupled to the control hub.

Abstract: The invention is a spring clutch mechanism including a first member and a second member coaxially disposed with respect to the first member where at least one of the first and second members is rotatable. A wrap spring assembly is in rotational engagement with the first member. At least one slip clip which has an outer axially extending surface and an axially extending aperture which forms an inner axially extending surface is disposed in rotational engagement between the second member and the wrap spring assembly.

Abstract: The invention is a spring clutch mechanism including a first member and a second member coaxially disposed with respect to the first member where at least one of the first and second members is rotatable. A wrap spring assembly is in rotational engagement with the first member. At least one slip clip which has an outer axially extending surface and an axially extending aperture which forms an inner axially extending surface is disposed in rotational engagement between the second member and the wrap spring assembly.

Abstract: In a spring clutch having a power input endpiece carrying an input hub, the input end of the helical clutch spring is permanently bound to the endpiece at the hub base by press fitting the coil into a circular groove at least partially surrounding said hub.