53 results about "Neutral position" patented technology

An insertion instrument comprises an insertion portion including a bending portion provided at a distal end side of the insertion portion, a first wire provided in the insertion portion, and an operation portion provided at a proximal end side of the insertion portion. The operation portion includes a bending operation unit. The bending operation unit includes a lever having a central shaft defining a central axis, a rotor coupled to the lever, a wire attachment surface to which the first wire is attached. An inner surface of the operation portion includes a receiver body and a restriction body. The receiver body supports the rotor for rotation about the central axis and for movement of the lever from a neutral position to an inclined position, where, in the inclined position, the central shaft is inclined relative to the central shaft in the neutral position. Movement of the lever from the neutral position to the inclined position pulls the first wire to bend the bending portion. The restriction surface restricts a portion of the rotation of the rotor about the central axis.

The present invention provides an information notification device that clarifies and makes easily recognizable information that should be communicated to the driver. [Solution] The information notification devices 1 and 1a are information notification devices 1 and 1a that notify the driver of information via the steering wheel 10, and include a first vibrator 21 positioned on the right side of the steering wheel 10 when the steering wheel 10 is in the neutral position, a second vibrator 22 positioned on the left side of the steering wheel 10 when the steering wheel 10 is in the neutral position, and a control unit 33 that controls the first vibrator 21 and the second vibrator 22, wherein the control unit 33 vibrates the second vibrator 22 to suppress vibration on the left side of the steering wheel 10 when the first vibrator 21 is vibrated, and vibrates the first vibrator 21 to suppress vibration on the right side of the steering wheel 10 when the second vibrator 22 is vibrated.

The invention consists of controlling the direction and opening of a hydraulic distributor with a stepper motor acting on it via a reversible transmission. This economical and reliable solution allows for precise positioning of the distributor spool during normal operation, and a return to the neutral position under the action of the return spring(s) in the event of a power failure. Figure 8 (for the abstract)

Provided is a hydraulic circuit structure configured to be capable of preventing heat shock.　A hydraulic circuit structure (1) comprises: a hydraulic circuit for supplying hydraulic oil from a control valve (V1) to a hydraulic actuator (M); and warm-up oil passages (34a, 34b, 35, L4a, L4b). When the control valve is in a neutral position (PO) for bringing the hydraulic actuator into a neutral state, back-pressure oil, which is the hydraulic oil to which back pressure from the control valve is added and flowing into the hydraulic circuit, is discharged to a low-pressure region having a lower pressure than the back pressure via the warm-up oil passages.

Embodiments provide various systems and methods for using operating parameters of a drilling system for improving a drilling performance of the drilling system, including monitoring, determining, predicting, and / or controlling tool face orientation, tool face wagging, returning the spindle to a neutral position, and spindle reaction time. These systems and methods may be used together in combination with one or more of the others, or all together in one combination, or may be used separately, and may be combined with one or more other systems of a drilling rig, such as a bit guidance system, an autoslide system, and / or one or more autodrill systems.

Information notification device (1, 1a) which provides information to a driver via a steering wheel (10), comprising: a first vibration device (21) arranged on a right side of the steering wheel (10) when the steering wheel (10) is in a neutral position; a second vibration device (22) arranged on a left side of the steering wheel (10) when the steering wheel (10) is in the neutral position;and a control (33) that controls the first vibration device (21) and the second vibration device (22), wherein, when the control (33) causes the first vibration device (21) to vibrate, the control (33) causes the second vibration device (22) to vibrate in order to suppress vibrations on the left side of the steering wheel (10), and when the control (33) causes the second vibration device (22) to vibrate, the control (33) causes the first vibration device (21) to vibrate in order to suppress vibrations on the right side of the steering wheel (10).

The invention relates to a loop flushing valve arrangement (10, 40) that comprises a housing with an inner recess, a first fluid port (19) connecting to the inner recess, a second fluid port (20) connecting to the inner recess, a third fluid port (21 ) connecting to the inner recess, and a spool (18) that is slidably movable within the inner recess. A biasing means (29) is provided that biases the spool (18) in a neutral position, in which the first fluid port (19), the second fluid port (20) and the third fluid port (21 ) are fluidly separated from each other. The spool (18) comprises a first pressure surface (22) that moves, when being applied with a pressure, the spool (18) into a first actuated position, in which a first temporary fluid channel is established between the second fluid port (20) and the third fluid port (21 ). Further, the spool (18) comprises a second pressure surface (23) that moves, when being applied with a pressure, the spool (18) into a second actuated position, in which a second temporary fluid channel is established between the first fluid port (19) and the third fluid port (21 ). Further, the first temporary fluid channel and / or the second temporary fluid channel comprise a unidirectional fluid influencing member (35, 36). This way, the loop flushing valve arrangement (10, 40) comprises a loop flushing valve functionality and a minimum pressure check valve functionality in a combined design.

To provide a brake device for vehicle seats that reduces the number of parts, thereby improving manufacturing efficiency and lowering manufacturing costs. [Solution] The system includes a brake mechanism 9 that brakes the pinion shaft 12 to prevent it from rotating in response to reverse input from the pinion gear 12a, and a drive mechanism 10 that releases the braking state of the pinion shaft and allows it to rotate in either the forward or reverse direction when the operating lever 5 is rotated from the neutral position in either the forward or reverse direction. The brake mechanism has a housing 11 with a friction cylindrical surface 13 on its inner circumference, and the drive mechanism has a drive wheel 18 that rotates the operating lever and the pinion shaft together while releasing the braking state of the pinion shaft. The drive wheel has friction resistance parts 30 at four locations in the circumferential direction that are pressed against the friction cylindrical surface of the housing by elastic force.

This utility model relates to the field of restraint technology for laboratory monkeys, specifically to a supine restraint device for eye experiments on laboratory monkeys. The device includes: a support plate with a groove, and a rotating seat extending along the groove; a head support component connected to the rotating seat and tiltable at a predetermined angle relative to the rotating seat; and a back support component connected to the groove and movable relative to the support plate along the length of the groove to a predetermined position. This restraint device supports the laboratory monkey in a supine position through three support points: head, back, and buttocks. This ensures the monkey is in a neutral position, preventing lateral tilting and facilitating intraocular injection, while minimizing restraint. This allows for observation of conditioned reflexes in monkeys under deep anesthesia and prevents accidental death.

This document describes a paddle shift lever assembly (100) for shifting gears and activating the horn on a vehicle's steering wheel (100A). The assembly (100) comprises a first paddle shift lever (102) and a second paddle shift lever (104), each pivotally mounted on the steering wheel (100A) and functionally connected to the vehicle's transmission and horn device. The first paddle shift lever (102) and the second paddle shift lever (104) are configured to move from a neutral position to a gear shift position, in which the transmission is engaged to change the vehicle's gears, and from the neutral position to a horn activation position, in which the horn device (402) is activated.

An adjustable inflatable limb lifting frame, including telescopic folding support frame and inflatable pad arranged on telescopic folding support frame, one side of telescopic folding support frame is provided with guide frame, the upper of telescopic folding support frame is provided with guide wheel. The utility model discloses through adjusting the height of telescopic folding support frame vertical rod, the length of support frame and the horizontal angle of guide frame, adjusts to the comfortable degree of suitable according to the use feeling, can be applicable to different patients, the roller under telescopic folding support frame is convenient to move telescopic folding support frame, is equipped with inflatable pad, and the skin pressure sore of patient's leg is comfortable, prevents skin pressure sore. In the process of traction, can keep neutral position, prevent foot drop, prevent complication. When not using, the telescopic folding support frame can be folded, and the space occupied by the lifting frame is saved.

The invention relates to a switching device (18) for a steering column (12) of a motor vehicle (10), wherein a steering handle (16) rotatable about a pivot axis (20) is arranged on the steering column (12), wherein the switching device has an actuating lever (24) pivotably arranged on the steering column about a pivot axis (22) parallel to the pivot axis, wherein the switching device is designed to reach a first lockable pivot position (30) by pivoting about the pivot axis from a neutral position (26), and has an electromechanical conversion unit (32) mechanically coupled to the actuating lever, which is designed to emit a first light signal depending on whether the first pivot position has been reached.According to the invention, the switching device is designed to achieve a lockable first additional pivot position (34) at least from the first pivot position by further pivoting the actuating lever about the pivot axis in the first direction of rotation, wherein the conversion unit is designed to emit a further light signal depending on whether the first additional pivot position has been reached.

A rack piston of a hydraulic steering assembly divides a hollow portion of a housing into an upper cylinder above the rack piston and a lower cylinder below the rack piston. The rack piston defines a rack cavity. An auto-bleeder bi-directional flow valve disposed in the rack piston allows for the flow of air and hydraulic fluid in and out of the rack cavity. The bi-directional flow valve defines a flow path through the rack piston between the rack cavity and the upper cylinder. When a differential pressure between the upper cylinder and the lower cylinder is greater than a threshold, the steel ball blocks the flow path by compressing a first spring or a second spring. Alternatively, the first spring and the second spring hold the steel ball in a neutral position to allow for the flow of air and hydraulic fluid in and out of the rack cavity.

The present disclosure relates to an inlet guide vane apparatus, a compressor, and a method of calibrating an inlet guide vane apparatus. The inlet guide vane apparatus includes a motor operably connected to at least one of a plurality of guide vanes, a sensor configured to detect a rotational position of the at least one of the plurality of guide vanes, and a controller connected to the sensor and the motor. The controller is configured to identify a first rotational stop position of the guide vane based on feedback from the sensor, identify a second rotational stop position of the guide vane based on feedback from the sensor, and calibrate a neutral position of the guide vane based on the determined first and second rotational stop positions of the guide vane.

This invention relates to an automatic pressure relief valve for a travel motor, comprising a first limiting plug, a first spring, an automatic pressure relief valve core, a second spring, and a second limiting plug coaxially and sequentially arranged within a mounting cavity. A first spring cavity is formed between the first limiting plug and the end of the automatic pressure relief valve core, and a second spring cavity is formed between the second limiting plug and the end of the automatic pressure relief valve core. The outer wall of the automatic pressure relief valve core has an axially extending communicating groove. When the automatic pressure relief valve core is in a non-neutral position, the third oil passage and the return oil passage are not connected. The balance valve and the automatic pressure relief valve in the travel motor work together to control the opening or closing of the brake piston cavity and the return oil passage, achieving separation or compression between the brake piston and the friction plate to match the working state of the travel motor. This structural design is sensitive and responsive. The automatic pressure relief valve and the balance valve work together to control the opening and closing of the brake piston cavity and the return oil passage, thereby matching the motor's working state.

This invention provides a hydraulically controlled lift valve and hydraulic system with throttling control function. The hydraulically controlled lift valve includes a first connection port, a second connection port, an unloading valve, a main control valve, and a logic valve. When the main control valve is in the neutral position, the first connection port is connected to the unloading valve through the main control valve, and the second connection port is locked. When the main control valve is in the lifting position, the first connection port is connected to the second connection port, and the unloading valve is closed. When the main control valve is in the lowering position, the unloading valve can be opened. The valve core of the main control valve has a fixed throttling orifice and a variable throttling groove. This hydraulically controlled lift valve enables the load device to perform holding, lifting, and lowering actions; the main control valve can achieve throttling control, which can improve the valve's micro-control performance and ensure the safety of the machine; the unloading valve can be piloted by the main control valve to reduce pressure loss; the logic valve can be piloted by the main control valve, ensuring reliable operation.

The present application relates to the quality control of hydraulic components, in particular to a testing system for balance valve groups. The balance valve group durability testing system comprises a forward testing system circuit and a reverse testing system circuit, the balance valve group to be tested is connected in the testing system, the forward testing system circuit and the reverse testing system circuit share a hydraulic pump, the hydraulic pump pumps hydraulic oil in an oil tank to the forward testing system circuit or the reverse testing system circuit through a three-position four-way electromagnetic reversing valve controlled by a programmable controller, the three-position four-way electromagnetic reversing valve has a Y-shaped neutral position, and the three-position four-way electromagnetic reversing valve reciprocally switches between the left position, the neutral position and the right position under the control of the programmable controller, so that the forward testing and the reverse testing are reciprocally switched. The present application not only provides a balance valve durability testing technology, but also realizes the durability testing of balance valve groups.

Disclosed herein is a fixator (1) for elastically restricting flexion of a spinal segment. The fixator (1) comprises a load-bearing element (4) comprising one or more load-bearing surfaces (5, 6), wherein a first load-bearing surface (5) is configured for contacting in a mounted position a first vertebra (2) and for forming in the mounted position a semi-loop (7) around the first vertebra (2). The load-bearing element (4) merges at the first end (41) into a first tail (8) and at the second end (41) into a second tail (9). The fixator (1) further comprises at least one lock (10) interconnected in the mounted position to the first tail (8) and / or the second tail (9) to maintain the load-bearing element (4) in a pre-tension with respect to a neutral position of the spinal segment, thereby providing an elastic resistance to flexion beyond the neutral position.

This invention relates to a shift actuator, comprising: a support (2); a rotating member (4) mounted to rotate about a rotation axis relative to the support (2); an electric motor for rotating the rotating member; a shift fork (30) mounted to pivot about a pivot axis (22) parallel to the rotation axis; a cam (10) having a cam protrusion (12) including a apex (14) and connected to rotate with the rotating member (4), but freely displaceable in a linear direction defined by a line perpendicular to the rotation axis to overcome the bias of a spring (40) to move the cam protrusion apex (14) closer to the rotation axis, the spring (40) biasing the cam protrusion apex (14) away from the rotation axis to an extended position; and a cam follower (38) disposed on the shift fork (30) and configured to engage with the cam protrusion (12) such that... When the cam protrusion applies force on the cam follower (38), the resultant force causes the shift fork (30) to pivot from the neutral position to the shift position; the control unit (50) is configured to control the electric motor; characterized in that the sensor (60) is connected to the control unit (50) and configured to detect when the shift fork (30) has reached the shift position, the cam (10) is provided with a protruding cam stop (20), and the control unit (50) is configured to, upon receiving a sensor signal indicating that the shift fork (30) has reached the shift position, control the electric motor (4) to rotate the cam (10) by another predetermined angle so that the cam (10) moves to the blocking position, in which the cam stop (20) is juxtaposed with a fixed stop (8) fixed relative to the support (2) to block the linear displacement of the cam (10) against the bias of the spring.

A watercraft operating system includes a marine propulsion device, an operation console, an input, and a watercraft operating controller. The marine propulsion device generates a thrust to propel a watercraft. The operation console includes a tiltable joystick. The input is configured to output an operating signal. The watercraft operating controller is configured or programmed to control a magnitude and an orientation of the thrust in accordance with an operation by the operation console. Upon receiving the operating signal, the watercraft operating controller is configured or programmed to determine whether or not the joystick is located in a neutral position. When the joystick is located in the neutral position, the watercraft operating controller is configured or programmed to transition to a holding standby state. When the joystick is tilted in the holding standby state, the watercraft operating controller is configured or programmed to transition to a holding control state to hold the thrust or a watercraft speed.

A mouthpiece having a plurality of trough sections, flexible links joining each of the plurality of trough sections, and a handle coupling. The plurality of trough sections being arranged along in a J-shaped or U-shaped curved length direction of the mouthpiece and configured to receive and brush a plurality of dental positions of a dental arch of a user. The flexible links are configured to allow the mouthpiece to ride along the dental arch between a neutral position and a shifted position, and to conform the mouthpiece to the dental arch. The handle coupling is configured for attaching a handle to ride the train of trough sections along the dental arch by applying a riding force onto the handle.

This utility model relates to a hydraulic cylinder with a neutral position function, comprising a cylinder body, a first piston, and a second piston. The first and second pistons are movably fitted within a first piston accommodating cavity and a second piston accommodating cavity, respectively, dividing the interior of the cylinder body into a first oil chamber, a second oil chamber, and a third oil chamber. The cylinder body has three oil inlets. A middle push rod is provided between the first and second pistons. A piston rod is provided on the side of the second piston away from the first piston. The stroke of the first piston is less than the axial length of the middle push rod, and the sum of the stroke of the first piston and the axial length of the middle push rod is less than the stroke of the second piston. This utility model's hydraulic cylinder, by setting two independent pistons in different accommodating cavities within the cylinder body and using three oil inlets to control the pressure in the three oil chambers respectively, achieves left limit, neutral position, and right limit stop functions, improving control accuracy and starting smoothness.

This product is designed to run a vehicle on a rail track formed by connecting multiple rail toys together. The vehicle can travel or temporarily stop on the parallel rail track configuration, and while stopped, it rotates a display panel. A switch lever located between the tracks stops the vehicle when it is in the neutral position, and by swinging the switch lever inverted toward one of the tracks, the vehicle that was stopped on the inverted track can resume its movement. The vehicle is self-propelled, and the driving force of its wheels also operates the rail toys and the moving parts incorporated into this product. When the vehicle reaches a track within this product, its operation activates the display panel operating mechanism within this product, causing the display panel to rotate. When the vehicle resumes its movement by swinging the switch lever inverted, the rotation of the display panel stops. Furthermore, since the vehicle's movement or temporary stopping corresponds to passengers getting on and off at a station, it is primarily used in combination with station building toys.

Gear shift assist device, in particular for a motorcycle, comprising a housing (16), a piston (12) arranged in the housing (16) and at least one compression spring (20, 26) provided in the housing (16), wherein the piston (12) is displaceable relative to the housing (16) under compression of at least the compression spring (20, 26), characterized in that a locking device (38) designed separately from the compression spring or springs (20, 26) is provided, which secures the piston (12) in a neutral position relative to the housing (16) below a predetermined unlocking force exerted on the piston (12) or the housing (16).

A multi-directional input device (1) according to the present embodiment comprises: a housing (10); an operation member (40) that protrudes from the housing and can be tilted; a first interlocking member (20) that holds the operation member so as to be able to rotate in a second direction (X), and is held by the housing so as to be able to rotate in a first direction (Y) that is orthogonal to the second direction in response to a tilting operation of the operation member; a second interlocking member (30) that is held by the housing so as to be able to rotate in the second direction in response to a tilting operation of the operation member; a first rotation detection unit (3) that detects rotation of the first interlocking member; a second rotation detection unit (4) that detects rotation of the second interlocking member; a biasing member (50) that applies, to the operation member, a return force for returning the operation member to a neutral position; and an elastic body (6) that biases the first interlocking member in a thrust direction.

A multi-directional input device (1) according to the present embodiment comprises: a housing (10); an operation member (40) that protrudes from the inside of the housing to the outside and can be operated to tilt in any direction around the housing; a first interlocking member (20) having a shaft part (22) which is a first shaft support part rotatably supported by the housing, the first interlocking member rotating in conjunction with the tilting operation of the operation member; a second interlocking member (30) having a shaft part (32) which is a second shaft support part that is rotatably supported by the housing and is orthogonal to the shaft part of the first interlocking member, the second interlocking member rotating in conjunction with the tilting operation of the operation member; a compression coil spring (50) that is a biasing member for biasing the operation member to press the shaft part of the first interlocking member against the housing and applying, to the operation member, return force for returning the operation member to a neutral position; a pair of clamping parts (151, 152) that are formed integrally with the housing and rotatably support the shaft part of the second interlocking member using the elasticity of the material of the housing; a first rotation detection unit (3) that detects the rotation of the first interlocking member; and a second rotation detection unit (4) that detects the rotation of the second interlocking member.

This control device includes a mechanical joint (24) guiding a control lever (22) in rotation relative to a frame (20) via two pivot joints with orthogonal axes. The mechanical joint (24) includes, for at least one of the pivot joints, a device (54) for returning a movable part (52) to a neutral position relative to a stationary part (50). This return device (54) includes at least one elastic element (70) having two arms (72, 76), each extending orthogonally to the axis (X) of the pivot joint from a finger (60) fixed to one of the movable (52) and stationary (50) parts to a respective free end (74, 78). The elastic element(s) (70) is designed to prevent the free ends (74, 78) from moving closer together.The elastic element (70) is interposed, along a transverse direction (T) orthogonal to the bisector (B) of the angle between the branches (72, 76), between a stationary pin (62, 64) fixed to the stationary part (50) and a movable pin (66, 68) fixed to the movable part (52). Figure for the abbreviation: Fig. 3.

A double-ended rod mechanism includes double-ended retainer cups for holding two rod-shaped products; a single internal body with a longitudinal axis; a single cam sleeve with a helical groove; two A-shell members; and two top covers. The retainer cups move up and down as either top cover rotates relative to the opposing A-shell. An alignment feature alerts the user that the retainer cup has reached its neutral position.

The application belongs to the technical field of fitness equipment, and particularly relates to a hip muscle training self-adaptive torque compensation method based on pelvic compensation feedback, which comprises the following steps: acquiring real-time pedaling displacement in a centripetal abduction stage in a unilateral hip muscle training process, combining with a pre-stored maximum pedaling length of a user, calculating a real-time displacement ratio, and determining a force arm compensation coefficient; acquiring a reference average speed of a first action in the centripetal abduction stage and a current average speed of a current action, calculating a speed retention rate, and adjusting a speed fatigue adjustment coefficient; acquiring an initial inclination angle of a pelvis when the user is in a body upright neutral position, and a current pelvic inclination angle and a current inclination angle in a training process; calculating a posture penalty coefficient; and dynamically adjusting a preset initial resistance by using the speed fatigue adjustment coefficient, the posture penalty coefficient and the force arm compensation coefficient. The application scheme can realize real-time sensing of human kinematics data and spatial posture, and accordingly realize dynamic torque compensation and multi-modal safety intervention.

The human-machine interface device comprises: - a magnetic rocker, which is rotatably movable between a rest position, in which the implement is held in a neutral position, and a tilted position, in which the implement is in a leaning position, - a magnetic assembly, which is attached to the frame, is able to cooperate with the magnetic rocker to generate a magnetic return force, which constantly pushes the magnetic rocker towards its rest position, - a sliding connection, which comprises a flange and a slider, and - an implement, which comprises one of said sliders, the flange and the magnetic rocker comprising the other of said sliders and flanges, so that the sliding connection translates the movement of the implement towards the leaning position by moving the magnetic rocker towards its tilted position, or vice versa.