59 results about "Translational displacement" patented technology

A stationary bicycle comprises a frame. A crankset is rotatably mounted to the frame to receive a pedaling actuation from a user of the stationary bicycle. A seat is mounted to the frame to support the user using the crankset in the pedaling actuation. A handlebar is mounted to the frame to serve as a hand / arm support for the user during the pedaling actuation. Translational joints between the frame and the seat and the handlebar are provided for translational displacement of the seat or handlebar with respect to the crankset. A mechanism is connected to the translational joint for locking the translational joint in a selected position, the mechanism allowing movement of the translational joint solely by a selected actuation displacing the translational joint proportionally in the direction of the translational displacement.

A computer input device, such as a mouse, is disclosed that includes one or more sensor systems for detecting translational displacement and angular displacement of the input device relative to a support surface. The input device transmits a signal to a computing device in response to detecting the translational displacement and angular displacement, and the computing device moves an image on a display screen in a linear manner in response to the signal. The sensor system within the input device may be an optical sensor system, for example.

An operation input device that has multi jointed arms includes: a holding unit that holds proximal ends of the multi-jointed arms in a state in which a relative positional relationship between the proximal ends is fixed; a detection unit that detects a joint movement amount that represents a movement of a joint by a rotation angle or a translational displacement from an unknown initial joint value; engagement units that are provided in distal ends of the multi jointed arms; a data acquisition unit that acquires a plurality of sets of joint movement amounts detected by the detection unit in a time series when engaging and moving the distal ends; and an initial value calculation unit that calculates the unknown initial joint value under a condition that a relative positional relationship between the distal ends is fixed via the engagement units.

An echo tracking processor unit detects a bone surface section based on an echo signal and tracks a position of the bone surface section. An interpolation line generator unit generates an interpolation line connecting tracking points which represent the tracked bone surface section. A translational displacement corrector unit removes a translational displacement component between an interpolation line corresponding to a time phase of a no-load state stored in a memory and an interpolation line corresponding to a time phase in a loaded state output from the interpolation line generator unit. A strain calculator unit calculates an amount of strain of bone for each time phase and outputs to a characteristic curve generator unit. The characteristic curve generator unit generates a characteristic curve related to the strain of bone based on a load value output from a load measurement device and the amount of strain of bone output from the strain calculator unit.

An apparatus for multi-axis rotation and translation comprises a spherical body, a plurality of roller assemblies each engaging the outer surface of the spherical body, a plurality of actuators for driving said roller assemblies, a frame for supporting the plurality of roller assemblies and the plurality of actuators and translation means for translating the frame along each of three orthogonal axes. The actuators are selectively operated to drive the roller assemblies thereby imparting unlimited angular displacement to the spherical body and rotating the spherical body about any axis passing through its geometric center. The translation means may be operated to translate said spherical body along at least one of said three orthogonal axes. The apparatus is particularly applicable to use as a manipulator with six degrees of freedom (unlimited rotational displacement and translational displacement limited only by the boundaries of the workspace).

A novel method of designing a twisting translational pump cartridge by utilizing a polymer shell with moveable cores inserted from each end. The polymer shell contains two perpendicular passages along the top for connection of a prime fluid chamber, a bulk fluid supply chamber and a fluid reservoir. These perpendicular passages and corresponding connection details are arranged in a fashion that is perpendicular to the axis of the polymer shell that comprises the pump cartridge cavity. Directly below at a different relative position also perpendicular to the axis of the pump cartridge cavity is an exit perpendicular passage for extrusion of fluid. The pump cartridge contains no valves or ancillary passages to direct flow between the different machine states of prime, refill, translate and dispense. The states are activated by changing the pitch of the twist or speed to determine relative position of the moveable cores with respect to each passage. Fluid moves by translation within the pump cartridge by filling the cavity volume between the oblate ends of the moveable cores with a liquid and matching the pitch of advancing left moveable core with the retreating pitch of the right moveable core. Both moveable cores can be directed to twist toward one another or one moveable core can remain stationary while the other advances twisting toward it to dispense a liquid.

A system for measurement of the height, angle and their variations of the surface of an object comprises a measurement module and an astigmatic optical path mechanism. The optical path mechanism makes a laser beam pass a lens assembly and focus on an object. The reflected light passes the lens assembly and an astigmatic lens, arriving at the photo sensor assembly, forming a light spot thereon. The translational displacements of the object are measured by the variations in shape of the light spot on the photo sensors. The angular displacements of the object are measured accordingly by the movement of the light spot on the photo sensors.

A protective covering system for wire shelving, designed for ease of attachment to any wire shelving system. The protective covering system comprises a substantially rigid base which exhibits through areas for attachment of fastening devices between the upper surface of the substantially rigid base and the upper portion of the individual wire shelving member to be engaged. The gripping of the individual wire shelving member on at least each of four areas, in conjunction with the positioning of the upper head portion of the individual fastening members restrains the substantially rigid base from movement by limiting the three translational displacement components of degree of freedom.

The invention belongs to the technical field of displacement monitoring, and particularly provides a high-rise structure dynamic displacement monitoring method based on a digital image, which includes an image collecting system and a data analyzing system, wherein the image collecting system is mounted on a measuring point of a to-be-monitored building with a lens of the image collecting system facing toward the ground, the included angle between the lens direction and the vertical direction is theta, and the image collecting system is used for collecting the ground image data; and the data analyzing system calculates the translational displacement and the torsion angle of the measuring point of the building according to the collected ground image data. The method can perform long-time, highly-precise, real-time and automatic monitoring of the dynamic displacement of the high-rise structure, and has the advantages of convenience for mounting and simplicity for popularization and application.

A novel method of designing a pump by utilizing a cylinder with pistons inserted from each end. The cylinder contains two ports along the top for connection of a prime fluid chamber, a bulk fluid supply chamber and a fluid reservoir. These ports and corresponding connection details are arranged in a fashion that is perpendicular to the axis of the cylinder that comprises the pump chamber. Directly below at a different relative position also perpendicular to the axis of the pump chamber is an exit port for extrusion of fluid. The pump contains no valves or ancillary passages to direct flow between the different machine states of prime, refill, translate and dispense. The states are activated by relative position of the pistons with respect to each port. Fluid moves by translation within the pump by filling the chamber volume between the two pistons with a liquid and synchronizing the advance of the left piston with the retreat of the right piston. Both pistons can be directed toward one another or one piston can remain stationary while the other advances toward it to dispense a liquid. Exceptionally accurate volumes of fluid can be deposited because of the absence of compliant members in the wetted path.

Apparatus are provided for infusion devices and related systems and operating methods. An exemplary system includes a motor, a sensing arrangement coupled to the motor to provide output indicative of a detected characteristic of the motor when the sensing arrangement is enabled, and a module coupled to the sensing arrangement to periodically enable the sensing arrangement while the motor is idle and detect potential unintended motion of the motor based on the output from the sensing arrangement while periodically enabling the sensing arrangement. In some embodiments, the motor includes a rotor configured such that its rotation provides translational displacement of a plunger in a fluid reservoir, and the sensing arrangement includes one or more sensors configured to provide output indicative of a detected magnetic field of the rotor magnet.

A connector plug comprises first (10') and second (10'') cylindrical portions, wherein the second portion is arrangeable in a cylindrical cavity of a socket (6), a locking / unlocking sleeve (13) consists of first and second parts, said plug (10) and sleeve (13) comprise holding means (11, 12) which interact with each other in such a way that the rotational and / or translational displacement of the sleeve with respect to the plug portions is limited.

A method of sensing ground contact with a lower limb prosthetic or orthotic device is provided. A first translational displacement between a frame and a connector can be sensed and then processed to identify an axial load caused by heel-ground contact. Additionally, a second translational displacement between the frame and the connector can be sensed and then processed to identify a torsional load caused by toe-ground contact.

The invention relates to a method for indirectly measuring dynamic flexibility of a corner in the technical field of vibration test. The method comprises the following steps that: two more measuring points are arranged close to a point to be measured, and the three points are collinear and distributed in equal distance; a harmonic concentrated moment is replaced by a harmonic concentrated force system to express the corner into a linear combination of translational displacement based on the equivalence principle of the harmonic concentrated force system and a one-order three-point- numerical differentiation formula of the corner; and finally, the dynamic flexibility from the concentrated moment to the corner is expressed by the dynamic flexibility linearity from concentrated force to the translational displacement, and the corner flexibility can be indirectly measured by measuring the dynamic flexibility from the concentrated force to the translational displacement. The invention is an indirect measuring method which can construct the dynamic flexibility of the corner only by measuring a plurality of dynamic flexibilities from the concentrated force to the translational displacement by adopting a hamper test or a frequency sweep test without adding a mass block for the structure, applying the concentrated moment, nor even applying the balanced concentrated force system .

The invention discloses a vision-based six-degree-of-freedom small displacement detection method. A rectangular visual target is arranged on the upper surface of an object to be detected, and a firstcollimating light source is arranged on the upper surface of the object to be detected, generates a first light spot on a first light receiver and conducts imaging on the rectangular visual target; the translation values Tx and Ty of the object to be detected are obtained according to the translation of an image of the rectangular visual target, and the rotational displacement value Rz of the object to be detected is obtained according to the rotation of the image of the rectangular visual target; the rotational displacement values Rx and Ry of the object to be detected are obtained accordingto the displacement of the first light spot; a planar reflection mirror is arranged at the position, deviating from the visual target, of the upper surface of the object to be detected, a second collimating light source is arranged above the object to be detected, collimating light emitted by the second collimating light source is reflected by the reflection surface and then received by the sensitive surface of a second light receiver, and the translational displacement value Tz of the object to be detected is obtained according to the displacement deltaYs of a second light spot. The method has the advantage that the accuracy of detecting six-degree-of-freedom displacement is high.

The embodiment of the invention provides an attitude angle control method of a three-degree-of-freedom parallel mechanism. The method comprises the steps of establishing a body coordinate system Ob-XbYbZb at the center of a circle, where the hinge point on the movable platform is located, establishing a fixed reference coordinate system Op-XpYpZp on the ground, the body coordinate system overlapping with the reference coordinate system when parallel mechanism is located at the working initial position, describing the posture of the moving platform by applying a body coordinate system relativeto the generalized coordinates of the reference coordinate system, wherein the generalized coordinates comprise three euler angles including transverse rocking angles, longitudinal rocking angles andyaw angles; acquiring a rotation matrix of the body coordinate system relative to the reference coordinate system; and obtaining the relation between the angular velocity, the angular acceleration andthe eulerian angle derivative of the moving platform in the body coordinate system; obtaining translational displacement of the moving platform according to the expected attitude angle; and obtainingthe movement rule of each actuator in the parallel structure by means of a kinematics reversal method according to the attitude angle and the translation displacement of the moving platform.

The invention relates to the adjusting and locking of the position of a guide rail for a movable window pane in a vehicle door. A device, a vehicle door equipped therewith and a tool provided for the adjusting and locking are disclosed. In the vehicle door, a first mounting plate mounted on the rail side and a second mounting plate mounted on the door side are provided, which are connected to one another by screw-fastenable mounting means. One of the mounting plates comprises an engaging element for an eccentric lever, which on rotation brings about a mutual translational displacement of the mounting plates in an adjusting (Y) direction.

The invention relates to the technical field of civil engineering, in particular to a translational soil pressure measuring-mode testing device which comprises an outer groove, an inner groove, an upper loading component, a lower loading component, multiple soil pressure measuring elements and a displacement measuring element. A transverse load-bearing body is positioned in a soil body, the soil pressure measuring elements are embedded in the soil body on the side face of the transverse load-bearing body, the displacement measuring element is arranged on the transverse load-bearing body, the upper loading component and the lower loading component are arranged horizontally and positioned on a same side of the transverse load-bearing body, one end of the upper loading component is abutted against the side wall of the outer groove while the other end of the same is connected with the top of the transverse load-bearing body, and one end of the lower loading component is abutted against the side wall of the outer groove while the other end of the same is connected with the bottom of the transverse load-bearing body. The upper loading component and the lower loading component load actions at the same time and push the transverse load-bearing body to move transversely by means of translation, so that soil pressure distribution law of the side face of the transverse load-bearing body under a translational displacement mode can be acquired through the soil pressure measuring elements and the displacement measuring element.

A seat component to prevent whiplash injury during a rapid motion change of a vehicle comprises means allowing a displacement of the seat and a person sitting thereon backwards (22) in relation to the direction of movement at the motion change. These means comprise a body (11, 18) to be affixed to or being part of the seat, a slide element (16) affixed to the vehicle and being in guiding contact with said body to guide a translational displacement of the seat over a predetermined distance. It further comprises a trigger system (13) to detect a acceleration threshold, a release mechanism (14) controlled through the trigger system (13) to enable said translational displacement (22) and a damping component (17) to damp said translational displacement (22). The trigger system (13) opens the release mechanism (14) only upon detection of an acceleration value above a predetermined threshold. The NIC experienced when using a conventional seat can be reduced by 40% if said seat is equipped with the device according to the invention.

The invention discloses a designing method of a transverse underpinning beam during longitudinal translational displacement of a building of a brick-concrete structure. The designing method comprises the steps that 1 the size of the cross section of the transverse underpinning beam is determined; 2 calculation units for designing the transverse underpinning beam are chosen; 3 longitudinal ribs inside the transverse underpinning beam are determined; 4 hoop ribs inside the transverse underpinning beam are determined; 5 calculation checking is conducted on local pressure bearing force of wall bodies at the two ends; 6 calculation checking is conducted on local punching shear bearing force of underpinning systems at the two ends. According to the designing method, the calculation units for designing the transverse underpinning beam are analyzed, the size of loads on the transverse underpinning beam and the distribution mode of the loads are determined, a calculation diagram of the transverse underpinning beam is determined, a value method of the size of the cross section of the transverse underpinning beam is provided, a calculation method of the longitudinal ribs of the transverse underpinning beam and the hoop ribs of the transverse underpinning beam is provided, and the designing method is reasonable in basis, convenient to apply and capable of guaranteeing construction safety.

Electric tweezers 1 includes a gripping member 13 for releasing / gripping an object, a base member 11 having an engagement portion to be engaged with the one end portion of the gripping member, a holder member 62 for fixedly coupling one end portion of the gripping member 13 and having a penetrating hollow cylindrical portion, a switch 57 for rotating and stopping a motor, a transformation mechanism 30 coupled with a shaft 52a of the motor 52 for transforming a rotation of the motor 52 in one direction into a quantity of translational displacement in a predetermined reciprocating direction with respect to the other end portion 13g of the gripping member, and an attaching section for attaching the base member 11 to a plurality of different positions relative to the holder member 62.

Apparatus are disclosed for coupling integrated segments of an assemblage. The coupler apparatus includes a carrier connectable to one segment and slidably receiving another segment and has an elongate slot defined at one wall portion of a cavity therein. A restraint includes a conic wedge receivable in the carrier and has an actuator arm angularly extending from the wedge that is receivable through the elongate slot of the carrier.