265 results about "Rotational coupling" patented technology

An image forming apparatus whereby it is possible to prevent unevenness in developing density caused by misalignment between the central axes of a driven side rotational coupling section for rotating a developer carrier and a drive side rotational coupling section for transmitting rotational drive force to the driven side rotational coupling section. The driven side rotational coupling section is fixed and the position thereof can be corrected slightly, by engaging the driven side rotational coupling section with a drive side rotational coupling section. A transmission gear is provided which meshes with the driven side rotational coupling section and transmits rotational drive force used to move the surface of the developer carrier. By means of an axle provided on at least one end of the transmission gear engaging with a positioning member on the main body of the image forming apparatus, the developer carrier is positioned in the main body of the image forming apparatus.

An injection device for injection of set doses of medicine from a cartridge has a nut (13) that is screwed up along a threaded piston rod (4) during a dose setting operation. The nut is screwed along the piston rod by rotating a dose setting member (17. A rotational coupling mechanism includes an axially displaceable coupling member (25) which is rotated as a function of axial displacement. During dose setting, the nut is allowed to rotate relative to the coupling member. During injection, the coupling member is rotationally locked to the nut. This provides a dose setting and injection mechanism wherein the nut member is both rotated during dose setting and during injection.

Rotational couplers for use with surgical devices that are actuated by semi-flexible actuators such as wires and the like. The couplers enable the actuators to apply various actuation motions to actuation features on the surgical device as well as other actuators to apply axial and rotational motions to the surgical device to manipulate the device into various orientations relative to an elongate shaft to which the device is movably attached.

A system for the selectable adjustment of an angle of elevation of groups of PV panels or panel arrays, relative to a roof to which the panels are attached, includes a platform, upon or thru the roof. The platform including horizontally secured rails. Also included are a parallel series of lower couplings, each member of the series provided upon the rails, and having a transverse distance between them sufficient to accommodate a PV panel array. Each of the couplings are provided with integral extensions or tabs, each having an aperture within a portion not in engagement with the platform. The system also includes linear support members secured to undersides of the panel arrays to be selectably elevated, each of the support members substantially co-planar with the rails of the parallel series of lower couplings. Struts of fixed lengths are selectably provided between alternates of the lower couplings within each of the series of couplings, in which alternate couplings, not associated with the struts, are rotationally or pivotally secured by extension tabs of each coupling and selectably secured to couplings upon the linear support members of the panel arrays. Also provided are equal length strut pairs of selectable lengths, each strut having an aperture at each end, detachably securable between corresponding lower and upper couplings of each of the series pairs of couplings between the rotational couplings. Selection of a pair of corresponding equal length struts, related to coupling pairs upon the parallel series of couplings and rails, effects an angle of elevation of a PV panel array as a function of the length of the co-equal lengths of the struts within the parallel series of couplings and rails.

A mobile scanner gun system is designed for a retail store with integrated mobile tablet device carried by employees. The mobile tablet device is connected to the pistol gun base housing through a base mount universal receiver with rotational coupling, and communicates to a USB barcode scanner/reader and MSR through a specialized universal serial bus wiring harness. The Main PCB has an EEPROM controlling operations of a scanner and an MSR. The mobile tablet device has mobile applications which allow wireless communication in the form of Wi-Fi or wireless cellular with a POS store systems server and corporate ERP system, and also commands the EEPROM. Merchandise to be purchased is scanned and received by the mobile tablet device and then sent wirelessly to the POS store systems server and corporate ERP system to obtain product data concerning description, price, inventory, electronic and physical coupon, promotions, customer loyalty data and rewards.

A display support apparatus includes a stabilizing member defining a cable passageway, a rotational coupling member coupled to the stabilizing member, and a plurality of supporting arms coupled to the stabilizing member, at least one supporting arm defining a cable-routing channel, whereby the stabilizing member rigidly maintains the plurality of supporting arms in a substantially parallel orientation relative to each other. The display support apparatus may be rotatably coupled to a chassis base and a display may be rotatably coupled to the support arms to provide rigid support for the display on the chassis.

A sensor mounting mechanism that includes a base member adapted to be mounted to a structure and a base neck having a first end and a second end where the first end is adapted to be coupled to a sensor with a ball-socket coupling and the second end is coupled to the base member with a rotating coupling. The mounting mechanism provides fine and course adjustment means for adjusting the scanning area of the sensor such as an PIR occupancy sensor without the use of a tool. The sensor includes a detachable lens holder for easy replacement of the lens.

A pneumatic rotary coupling (25) for an air pressure installation for one or more wheels of a vehicle. The coupling's tube (49) has one end formed in the shape of a nozzle which extends in the plane of the wheel, disposed as an axial extension of the wheel's axle end. The tube is located rotary and slidable inside block (35) that is fixed to the wheel's hub cover. A cover (37) fixed to the block presents a chamber (45) with an edge that defines a seat for a plastic bushing (47) that supports the coupling's tube. The external surface of this bushing is conformed by grooves (53) that communicate the chamber towards the orifices linking with the tires. The coupling includes a valve (75) that is pushed open by the tube in the event of outward wheel offset, thereby depressurizing the chamber. The tube further includes grooves (87) for bypassing a seal (57) in the event of inward wheel offset, thereby depressurizing the chamber through a vent opening (65). In either case, the chamber depressurization signals the fault to the driver. The vent opening is in a circumferential recess (71) for housing an o-ring (73) that prevents dust, dirt and other undesirable particles from entering the coupling and the wheel bearings.

A connector that has a coupling nut (14) that is rotatable about a barrel (12), with an annular space (42) between them, and with a resistance ring (40) lying in the annular space. The resistance ring allows the nut to rotate with moderate friction in a mating direction M, and provides higher resistance to nut rotation in an unmating direction U. The resistance ring is formed from a metal band with primarily straight band sections (60, 62, 64, 66) that alternately extend at inward and outward inclines from the circumference direction C. As a result, the resistance ring zig-zags by alternately engaging the nut surface (52) that faces the annular space, then the barrel surface (50) that faces the annular space, etc. Some of the radially outer ends of the straight sections are bent into small half circles (67) that fit into corresponding slots (68) in the nut to fix the resistance ring relative to the nut. The radially inner ends of the straight sections form bumps (70) that ride over saw teeth (74, 76) formed on the barrel surface.

A rotational coupling device for use as a clutch and/or brake is provided having improved magnetic efficiency and structural integrity. A field shell and a rotor of the device each define radially spaced, axially extending inner and outer poles. The inner pole of the rotor is disposed radially outwardly of the inner pole of the field shell resulting in improved magnetic efficiency.

A hydrodynamic torque converter having a converter housing defining interior space for receiving a converter work fluid, a turbine wheel arranged in interior space of the converter housing and rotatable with respect to the converter housing, a lockup clutch having a coupling element axially displaceably arranged on the turbine wheel for selectively coupling the turbine wheel with the converter housing. The converter housing and the coupling element define a pressure fluid space capable of being filled with a pressure fluid. The interior space is separated from the pressure fluid space for preventing fluid communication between the interior space and the pressure fluid space. The hydrodynamic torque converter also has a first channel connected to the interior space for guiding converter work fluid into the interior space, a second channel connected to the interior space for guiding converter work fluid out of the interior space and a third fluid channel connected to the pressure fluid space for selectively directing pressure fluid into and out of the pressure fluid space. The coupling element is displaced for at least partially canceling a rotational coupling of the converter housing and the turbine wheel when pressure fluid is directed into the pressure fluid space.

Initiation of coupling between an input disk and a clutch disk at a maximum rotational coupling force without making relative rotation between the input disk and the clutch disk is enabled only when the output shaft is placed in a single engageable point within a normal reciprocal angular range of the output shaft. When a load applied to the output shaft is equal to or greater than a predetermined value, the input disk and the clutch disk are decoupled from one another, so that the relative rotation is made between the input disk and the clutch disk.

An automatic clutch consisting of a centrifugally actuated pressure plate apparatus axially moveable relative to a clutch inner hub and rotationally coupled to a clutch outer basket. As the engine spins the clutch outer basket, the rotational coupling between the clutch outer basket and the centrifugal pressure plate causes the centrifugal pressure plate to move axially relative to the clutch inner hub and apply a force to driven clutch plates and driving clutch plates. The force exerted by the centrifugal pressure plate upon driven clutch plates and driving clutch plates causes the plates to couple, forcing engagement between the engine and transmission. Optionally, a variable spring tension may be applied through the clutch release mechanism to adjust the engine speed at which the clutch begins to engage.

A torque converter having a converter housing which is coupled to a driving unit, a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about an axis of rotation and has a turbine wheel shell and a turbine wheel hub which is connected with the turbine wheel shell and which can be coupled with or is coupled with a converter driven shaft. A lockup clutch provides selectable rotational coupling of the converter housing with the turbine wheel, and a torsional vibration damper arrangement is provided in the power transmission path between the converter housing and the turbine wheel hub and/or between the turbine wheel shell and the turbine wheel hub. A friction device is connected parallel to the torsional vibration damper arrangement in the power transmission path for generating a frictional force which may be changed in a selected manner.

A portable device having an overload protection device for motor-operated tools has a drive motor, a drive shaft connected to the drive motor and driven in rotation by the drive motor, and an output shaft for driving a cutting tool, wherein the output shaft is arranged substantially perpendicularly to the drive shaft. A drive pinion is connected to the drive shaft. A drum is supported on the output shaft and driven in rotation by the drive pinion. A coupling is arranged between the drum and the output shaft and engages the drum. The coupling is connected to the output shaft. When the output shaft is blocked, the coupling effects an automatic decoupling between the drum and the output shaft in order to prevent overloading of the drive motor.

An unwind apparatus for obtaining, loading, splicing, and unwinding convolutely wound rolls of web material and forwarding the web material unwound from each of the convolutely wound rolls uninterruptedly to a downstream apparatus is disclosed. The unwind apparatus provides for a multi-axis robot and an end effector operatively connected to the multi-axis robot. The end effector provides for a stationary motor, a rotational coupling mechanically coupled to the stationary motor, and, a mandrel mechanically coupled to the rotational coupling. The mandrel is capable of releasably engaging the convolutley wound rolls of web material.

A power delivery system includes a rotary transformer having a primary winding and a secondary winding and configured to transfer power between stationary coupling elements on a stationary side and rotational coupling elements on a rotational side. The rotational coupling elements share a central axis with the stationary coupling elements, and are adapted to rotate with respect to the stationary coupling elements. The power delivery system includes an isolation transformer that drives the primary winding of the rotary transformer, and a plurality of power inverter stages whose outputs are adapted to be summed and coupled to the rotary transformer. A plurality of output power converters receive transmitted power from the rotary transformer. A plurality of control elements, disposed on the rotating side, are configured to close a feedback loop on desired and actual performance of the output power converters, and to control the power inverter stages.