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A case for multiple pairs of eyeglasses has a top surface and an opposing bottom surface, a front surface and an opposing back surface and defines a volume for receiving eyeglasses with a length orientation of the eyeglasses substantially parallel to the front of the case. The case is formed from a

A case for multiple pairs of eyeglasses has a top surface and an opposing bottom surface, a front surface and an opposing back surface and defines a volume for receiving eyeglasses with a length orientation of the eyeglasses substantially parallel to the front of the case. The case is formed from a cover portion and a base portion, hinged together at a pivot line that extends across the bottom of the case parallel to the length orientation of a pair of eyeglasses stored in the case. Preferably, the pivot line is offset on the bottom of the case so as to be closer to the back than the front. The pivot line forms a part of a mating line between the cover portion and the base portion. Preferably, the mating line extends obliquely upward from the bottom, across the ends of the case, and across the top. A divider separates the internal volume of the case into two compartments, each accommodating one pair of eyeglasses. The compartments are offset obliquely, allowing the top-to-bottom dimension of the case to be minimized for easier, more convenient carrying in a jacket or shirt pocket, while still allowing the use of rigid material, providing better protection for the eyeglasses than can be provided in a soft-sided case.

대표청구항 ▼

A case for multiple pairs of eyeglasses has a top surface and an opposing bottom surface, a front surface and an opposing back surface and defines a volume for receiving eyeglasses with a length orientation of the eyeglasses substantially parallel to the front of the case. The case is formed from a

A case for multiple pairs of eyeglasses has a top surface and an opposing bottom surface, a front surface and an opposing back surface and defines a volume for receiving eyeglasses with a length orientation of the eyeglasses substantially parallel to the front of the case. The case is formed from a cover portion and a base portion, hinged together at a pivot line that extends across the bottom of the case parallel to the length orientation of a pair of eyeglasses stored in the case. Preferably, the pivot line is offset on the bottom of the case so as to be closer to the back than the front. The pivot line forms a part of a mating line between the cover portion and the base portion. Preferably, the mating line extends obliquely upward from the bottom, across the ends of the case, and across the top. A divider separates the internal volume of the case into two compartments, each accommodating one pair of eyeglasses. The compartments are offset obliquely, allowing the top-to-bottom dimension of the case to be minimized for easier, more convenient carrying in a jacket or shirt pocket, while still allowing the use of rigid material, providing better protection for the eyeglasses than can be provided in a soft-sided case. /li>a torque transfer mechanism operable for transferring drive torque from said input member to said output member; said torque transfer mechanism including: a friction clutch assembly operably disposed between said input member and said output member; a ball screw operator having a first screw member mounted on said output member and a second screw member supported for axial movement relative to said first screw member for generating a clutch engagement force to be applied to said friction clutch assembly; a resilient coupling mechanism for coupling said first screw member for rotation with said output member; and a magnetorheological actuator having a rotor with a first portion fixed for rotation with said first screw member and a second portion disposed in a chamber filled with a magnetorheological fluid, and a electromagnetic coil arranged to vary the viscosity of said fluid in said chamber in response to electric control signals; anda controller for generating said electric control signals.2. The power transmission device of claim 1 wherein said ballscrew operator further includes balls retained between aligned threads formed in said first and second screw members.3. The power transmission device of claim 1 wherein said resilient coupling mechanism provides a predetermined drag force between said first screw member and said output member for causing said first screw member to rotate with said output member until a force applied to said rotor upon activation of said coil causes said first screw member to rotate relative to said output member.4. The power transmission device of claim 1 wherein said friction clutch assembly includes a first clutch member driven by said input member, a second clutch member driving said output member, a clutch pack operably interleaved between said first and second clutch members, an apply plate moveable relative to said clutch pack in response to movement of said second screw member, and a case member fixed for rotation with said first clutch member and having spaced segments defining said chamber within which said first portion of said rotor is disposed.5. The power transmission device of claim 4 wherein said electromagnetic coil is fixed to a non-rotational housing and is located in proximity to said spaced segments of said case member, whereby activation of said coil creates a magnetic field which causes the viscosity of said magnetorheological fluid to increase for resisting relative rotation between said case member and said rotor.6. The power transmission device of claim 4 wherein said friction clutch assembly further includes a return spring for biasing said apply plate to release said clutch pack.7. The power transmission device of claim 1 wherein said input member is a first output shaft of a transfer case and said output member is a second output shaft of said transfer case.8. The power transmission device of claim 1 wherein said input member is driven by a powertrain of a motor vehicle and said output member is connected to a differential of an axle assembly.9. The power transmission device of claim 1 wherein said controller establishes the value of said electric control signal based on a rotary speed difference between said input member and said output member, and wherein said control signal is operable to vary the viscosity of said magnetorheological fluid in said chamber which results in axial movement of said second screw member relative to said friction clutch assembly.10. A power transmission device for use in a motor vehicle having a source of drive torque and first and second drivelines, comprising: an input member adapted to receive drive torque from the torque source;a first output member adapted to transfer drive torque from said input member to the first driveline;a second output member adapted for connection to the second driveline;a torque transfer mechanism operable for transferring drive torque from said first output member to said second output member; said torque transfer mechanism including, a friction clutch assembly operably disposed between said first output member and said second output member, a ballscrew operator having a first screw member mounted on said second output member and a second screw member supported for axial movement relative to said first screw member for generating a clutch engagement force to be applied to said friction clutch assembly, a rotor having a first portion fixed for rotation with said first screw member and a second portion disposed in a chamber filled with a magnetorheological fluid, and a electromagnetic coil arranged to vary the viscosity of said magnetorheological fluid in response to electric control signals; anda controller for generating said electric control signals.11. The power transmission device of claim 10 wherein said power transmission device is a transfer case having an input shaft as its input member, a first output shaft as its first output member, and a second output shaft as its second output member, wherein activation of said electromagnetic coil is operable for causing said second screw member to move axially relative to said first screw member so as to exert a clutch engagement force on said friction clutch assembly for transferring drive torque from said first output shaft to said second output shaft.12. The power transmission device of claim 10 wherein said ballscrew operator further includes balls retained between aligned threads formed in said first and second screw members.13. The power transmission device of claim 10 further comprising a resilient coupling mechanism for providing a drag force between said first screw member and said output member which causes said first screw member to rotate with said output member until a reaction force applied to said rotor upon activation of said coil causes said first screw member to rotate relative to said output member.14. The power transmission device of claim 10 wherein said friction clutch assembly includes a first clutch member driven by said first output member, a second clutch member driving said second output member, a clutch pack operably interleaved between said first and second clutch members, an apply plate moveable relative to said clutch pack in response to movement of said second screw member, and a case member fixed for rotation with said first clutch member and having spaced segments defining said chamber within which said first portion of said rotor is disposed.15. The power transmission device of claim 14 wherein said electromagnetic coil is fixed to a non-rotational housing and is located in proximity to said spaced segments of said case member, whereby activation of said coil creates a magnetic field which causes the viscosity of said magnetorheological fluid to increase for resisting relative rotation between said case member and said rotor.16. The power transmission device of claim 10 further comprising:sensors for detecting certain operational characteristics of the motor vehicle and generating sensor signals that are received by said controller; anda mode select mechanism for permitting selection of first and second operational drive modes and generating mode signals received by said controller.17. The power transmission device of claim 16 wherein said first operational drive mode is an adaptive mode where said controller adaptively regulates the value of control signals sent to said coil for variably controlling the value of said clutch engagement force generated by said ballscrew operator.18. A motor vehicle comprising: a powertrain for generating drive torque;a first driveline including a first differential driving a pair of first wheels;a second driveline including a second differential driving a pair of second wheels; anda power tran