A furniture system having a furniture item which includes an electrically-adjustable component, a control unit and a linear actuator for adjusting a component of the furniture item is provided. The linear actuator includes a gear mechanism including a hollow element and a first stage formed as a friction wheel stage. The linear actuator further includes a motor on a drive side and an adjustment member arranged on an output side. The linear actuator, in particular the motor, the gear mechanism and the adjustment member are adapted to alter a length of the adjustment member by means of the motor and the gear mechanism. The control unit is coupled with the linear actuator and adapted to actuate the linear actuator for adjusting the component.

A gear arrangement comprising a gear train having a first gear on a first axle and a second gear on a second axle, the first and second gears arranged to intermesh, characterised in that the gear arrangement is provided with a friction drive comprising a first rotary element mounted on the first axle arranged to frictionally drive a second rotary element mounted on the second axle.

A system for implementing an electrical rotary joint in a large-diameter system using relatively small-diameter capsule slip rings is described herein. The system includes a system rotor that rotates about a system axis of rotation, and a system stator that is stationary with respect to the system rotor. The system also includes at least one conductive contact channel disposed on one of the system rotor and the system stator. The system further includes at least one capsule slip ring (CSR) coupled to the other of the system rotor and the system stator. The at least one CSR has a conductive annular element coupled thereto, the conductive annular element in mechanical contact with the at least one conductive contact channel such that the at least one CSR forms an electrical rotary joint between the system rotor and the system stator.

The present invention pertains to system, modules and methods for leveraging force.

The present invention pertains to system, modules and methods for leveraging force.

A transmission and components thereof are provided. In one aspect, the transmission component has one or more formations, the one or more formations being substantially elongate and running along an engagement face of the component, the formation(s) configured to be frictionally engagable with a substantially elongate recess of a second transmission component; and/or (ii) one or more recesses, the one or more recesses being substantially elongate and running along an engagement face of the component, the recess(es) configured to be frictionally engagable with a substantially elongate formation of a second transmission component. In a second aspect, the transmission has a first transmission component and a second transmission component having one or more substantially elongate recesses, wherein the formation(s) of the first transmission component are frictionally engageable with the recess(es) of the second transmission component, such that in use the first transmission component is capable of driving the second transmission component. In a third aspect, a method for improving the torque density of a transmission is provided by setting or adjusting an amount of frictional engagement between two components involved in the torque flow through the transmission.

A transmission and components thereof are provided. In one aspect, the transmission component has one or more formations, the one or more formations being substantially elongate and running along an engagement face of the component, the formation(s) configured to be frictionally engagable with a substantially elongate recess of a second transmission component; and/or (ii) one or more recesses, the one or more recesses being substantially elongate and running along an engagement face of the component, the recess(es) configured to be frictionally engagable with a substantially elongate formation of a second transmission component. In a second aspect, the transmission has a first transmission component and a second transmission component having one or more substantially elongate recesses, wherein the formation(s) of the first transmission component are frictionally engageable with the recess(es) of the second transmission component, such that in use the first transmission component is capable of driving the second transmission component. In a third aspect, a method for improving the torque density of a transmission is provided by setting or adjusting an amount of frictional engagement between two components involved in the torque flow through the transmission.

A rotary element for a rotary transmission has a helical radial projection disposed about a rotary axis thereof, the helical radial projection having leading and trailing edges of different diameter. A helical peripheral surface between the leading and trailing edges has a radial profile which is inclined to a tangent to the envelope and preferably has an elliptic profile in a radial plane. In use with another such rotary element having a helical radial projection of opposite handedness in a rotary transmission, a point (P) of rolling contact of the helical peripheral surface with a helical peripheral surface of the other such rotary element helically traverses the helical peripheral surfaces of both rotary elements to positively transmit rotary drive between them without interdigitation of their respective helical radial projections and the associated sliding friction between them as arising in a gear transmission.

A system (100) for leveraging force comprises a main crosspiece (2) having at least one first end (2a) and an opposite at least one second end (2b) end. The main crosspiece (2) is interconnected by means of an axle (5) with a static wheel (1) at a location (2c), in between the first end (2a) and second end (2b) of the main crosspiece (2), the static wheel (1) is characterized by a first diameter (D). The second end (2b) of the crosspiece (2) is configured to provide an output force F.sub.out at second end (2b) correlated to (L/l)F.sub.in, where F.sub.in is an input force applied to the driving wheel (4), L is a distance between second end (2b) and the main axle (5) and Lis a distance between the first end (2a) and the main axle (5).

A system (100) for leveraging force comprises a main crosspiece (2) having at least one first end (2a) and an opposite at least one second end (2b) end. The main crosspiece (2) is interconnected by means of an axle (5) with a static wheel (1) at a location (2c), in between the first end (2a) and second end (2b) of the main crosspiece (2), the static wheel (1) is characterized by a first diameter (D). The second end (2b) of the crosspiece (2) is configured to provide an output force F.sub.out at second end (2b) correlated to (L/l)F.sub.in, where F.sub.in is an input force applied to the driving wheel (4), L is a distance between second end (2b) and the main axle (5) and Lis a distance between the first end (2a) and the main axle (5).