Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a head restraint including a push-button and a lever rotatable by a pull cable. The head restraint is moveable from an upright position to a folded position by movement of the push-button or the lever. This disclosure also relates to a seat and a method of use.

Abstract: This disclosure generally relates to a headrest assembly for a seat in a vehicle. In particular, the headrest assembly includes a locking arrangement that reduces, if not completely eliminates, buzz, squeak, and rattle (BSR). An exemplary headrest assembly includes, among other things, a rod including a recess and which is configured to connect the headrest assembly to a seat back. The headrest assembly also includes a head restraint having a locking portion configured to selectively engage the recess to set a vertical position of the head restraint relative to the rod. Further, at least one of the recess and the locking portion is tapered. Tapering the recess and/or the locking portion ensures that there will be two opposed points of contact between the recess and the locking portion, thereby reducing, if not eliminating, BSR between the two elements.

Abstract: This disclosure generally relates to a bushing arrangement for a headrest assembly of a seat in a vehicle. In one example of the present disclosure, the headrest assembly includes a rod configured to connect the headrest assembly to a seat back, and a head restraint. The head restraint includes a bushing configured to contact the rod and a spring configured to impart a force on an outer surface of the bushing. This arrangement allows a user to smoothly raise and lower the head restraint, and increases the stability of the head restraint relative to the rod.

Abstract: This disclosure generally relates to a headrest assembly for a seat in a vehicle. In particular, the headrest assembly includes a locking arrangement that reduces, if not completely eliminates, buzz, squeak, and rattle (BSR). An exemplary headrest assembly includes, among other things, a rod including a recess and which is configured to connect the headrest assembly to a seat back. The headrest assembly also includes a head restraint having a locking portion configured to selectively engage the recess to set a vertical position of the head restraint relative to the rod. Further, at least one of the recess and the locking portion is tapered. Tapering the recess and/or the locking portion ensures that there will be two opposed points of contact between the recess and the locking portion, thereby reducing, if not eliminating, BSR between the two elements.

Abstract: This disclosure generally relates to a bushing arrangement for a headrest assembly of a seat in a vehicle. In one example of the present disclosure, the headrest assembly includes a rod configured to connect the headrest assembly to a seat back, and a head restraint. The head restraint includes a bushing configured to contact the rod and a spring configured to impart a force on an outer surface of the bushing. This arrangement allows a user to smoothly raise and lower the head restraint, and increases the stability of the head restraint relative to the rod.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a head restraint including a push-button and a lever rotatable by a pull cable. The head restraint is moveable from an upright position to a folded position by movement of the push-button or the lever. This disclosure also relates to a seat and a method of use.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a rod configured to connect the headrest assembly to a seat back. The rod includes a first vertical portion and a second vertical portion, which each have a plurality of recesses. The headrest assembly further includes a head restraint including a pushing plate having a first locking portion and a second locking portion. The first and second locking portions selectively engage the recesses of the first and second vertical portions, respectively, to adjust a vertical position of the head restraint.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a head restraint including a push-button and a cam rotatable by a pull cable. The head restraint is moveable from an upright position to a folded position by movement of the push-button or the cam.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a head restraint including a push-button and a cam rotatable by a pull cable. The head restraint is moveable from an upright position to a folded position by movement of the push-button or the cam.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a rod configured to connect the headrest assembly to a seat back. The rod includes a first vertical portion and a second vertical portion, which each have a plurality of recesses. The headrest assembly further includes a head restraint including a pushing plate having a first locking portion and a second locking portion. The first and second locking portions selectively engage the recesses of the first and second vertical portions, respectively, to adjust a vertical position of the head restraint.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes a head restraint configured to rotate from a first locked position to a second locked position to incline the head restraint relative to a seat back. Further, the head restraint is configured such that rotation of the head restraint beyond the second locked position causes the head restraint to become urged back to the first locked position. The head restraint includes a ratchet assembly having a pawl and pawl spring, and the pawl spring includes a first section and a second section. The first section of the pawl spring is configured to contact the pawl when the head restraint is rotated from the first locked position to the second locked position, and the second section of the pawl spring is configured to contact the pawl when the head restraint is rotated beyond the second locked position.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes a head restraint configured to rotate from a first locked position to a second locked position to incline the head restraint relative to a seat back. Further, the head restraint is configured such that rotation of the head restraint beyond the second locked position causes the head restraint to become urged back to the first locked position. The head restraint includes a ratchet assembly having a pawl and pawl spring, and the pawl spring includes a first section and a second section. The first section of the pawl spring is configured to contact the pawl when the head restraint is rotated from the first locked position to the second locked position, and the second section of the pawl spring is configured to contact the pawl when the head restraint is rotated beyond the second locked position.

Abstract: A headrest assembly according to an exemplary aspect of the present disclosure includes a head restraint configured to rotate from a first locked position to a second locked position to incline the head restraint relative to a seat back. Further, the head restraint is configured such that rotation of the head restraint beyond the second locked position causes the head restraint to become urged back to the first locked position. The head restraint includes a ratchet assembly having a pawl and pawl spring, and the pawl spring includes a first section and a second section. The first section of the pawl spring is configured to contact the pawl when the head restraint is rotated from the first locked position to the second locked position, and the second section of the pawl spring is configured to contact the pawl when the head restraint is rotated beyond the second locked position.

Abstract: A method for controlling well bore pressure based on model prediction control theory and systems theory, includes: detecting a well bottom pressure, a stand pipe pressure, a casing pressure, an injection flow rate and an outlet flow rate during the drilling operation process and determining the presence of overflow or leakage; if there is no overflow or leakage, then fine-adjusting the wellhead casing pressure according to the slight fluctuations of the well bottom pressure, the stand pipe pressure or the casing pressure; if there is overflow or leakage, simulating and calculating the overflow or leakage position and starting time of the overflow or leakage, predicting the variation over a future time period of the well bore pressure in the well drilling process, and utilizing an optimization algorithm to calculate the control parameter under a minimum of an actual well bottom pressure difference during the future period.

Abstract: Provided are a method, device and system for restricting electricity intelligently. The method includes: a synchronous data request is sent to an AMI platform; real-time electricity quantity data sent, according to the synchronous data request, by the AMI platform is received; the real-time electricity quantity data is analyzed according to a preset electricity restriction rule, and corresponding electricity restriction control information is acquired; the electricity restriction control information is sent to the AMI platform, so that the AMI platform carries out an intelligent electricity restriction.

Abstract: A folding headrest is disclosed, supported by a mounting rod bar beam, comprising a headrest shell connected to a housing, wherein the housing is pivotably supported on a shaft fixed to the mounting rod, wherein the housing is preloaded for rotation with respect to the shaft by a first torsion spring, an actuating button connected to in sliding communication with the headrest shell, the button in contact with a pushrod, wherein the pushrod passes within into the housing, a force direction-changing L-shaped lever pivot arm pivotably connected to pivotably disposed on the housing, wherein the longitudinal axis of the pushrod is substantially orthogonal to a plane containing the axis of rotation of the force direction-changing lever, a locking lever pivotably connected to pivotably disposed on the housing.

Abstract: A method for controlling well bore pressure based on model prediction control theory and systems theory, which belongs to the field of well bore pressure control technique, includes: detecting a well bottom pressure, a stand pipe pressure, a casing pressure, an injection flow rate and an outlet flow rate during construction process, and determining the presence of overflow or leakage; if there is no overflow or leakage, then fine-adjusting the wellhead casing pressure according to the slight fluctuations of the well bottom pressure, the stand pipe pressure or the casing pressure, ensuring that the well bottom pressure, the stand pipe pressure or the casing pressure are at a set value; if there is overflow or leakage, then using a well bore multi-phase flow dynamic model to simulate and calculate the overflow or leakage position and starting time of the overflow or leakage, predicting the variation over a future time period of the well bore pressure in the well drilling process, and utilizing an optimization a

Abstract: A folding headrest is disclosed, supported by a mounting rod bar beam, comprising a headrest shell connected to a housing, wherein the housing is pivotably supported on a shaft fixed to the mounting rod, wherein the housing is preloaded for rotation with respect to the shaft by a first torsion spring, an actuating button connected to in sliding communication with the headrest shell, the button in contact with a pushrod, wherein the pushrod passes within into the housing, a force direction-changing L-shaped lever pivot arm pivotably connected to pivotably disposed on the housing, wherein the longitudinal axis of the pushrod is substantially orthogonal to a plane containing the axis of rotation of the force direction-changing lever, a locking lever pivotably connected to pivotably disposed on the housing.