The present disclosure relates to an air vent structure. The air vent structure at least includes a tubular housing through which an air-conditioned air flows, and an annular finisher in an air flow-out end of the housing. The air vent structure further includes an air restrictor that restricts the inflow of the air-conditioned air into a clearance between the air flow-out end of the housing and the finisher.

A gear system for pivoting blades of an air vent, which is releasable or disengageable. For this purpose, one embodiment provides a rack and pinion gear system comprising helical pinions, which engage with a toothed rack as a result of an axial force due to a helical spline when rotational driving, and thereby establish a drive connection with the blades.

A register for air conditioning, includes: a tubular body forming a ventilation flue and an outlet of air for air conditioning; a damper plate including an upstream piece and a downstream piece; and an adjustment mechanism including: a rotatable operation part; a dia shaft fixed to the damper plate; and a link connected to the dia shaft and the operation part to transmit the rotation of the operation part to the dia shaft. The damper plate rotates from an open position to an closed position in a direction where the upstream piece rotates to the downstream side and the downstream piece rotates to the upstream side by an operation of the operation part, and a rotation torque generated when a wind of the air acts on the upstream piece is greater than a torque generated in the downstream piece at least in the vicinity of the closed position.

An air vent knob assembly includes an air vent wing coupled to an assembly hole of a knob. A front stopper is formed on the front surface and a knob fitting groove is formed on the rear surface of the air vent wing. An assembly groove is formed inside the assembly hole of the knob and a piece of rubber is assembled into the assembly groove. A front slide groove is formed on the piece of rubber wherein the front stopper of the air vent wing is fitted and moved in the front slide groove. A rear stopper is formed on both ends of the rear portion of the knob. Wherein the front stopper contacts ends of the front slide groove and the rear stopper contacts sides of the knob fitting groove upon full movement of the knob relative to the air vent wing in both directions.

A vehicle air-conditioning apparatus includes: a duct disposed in a seat of a vehicle, air flowing through the duct from an air conditioning unit; a rear seat outlet formed on a back face of a backrest portion of the seat to blow out the air from the duct toward a rear seat of the vehicle; and an air flow deflection member that partitions the rear seat outlet into a first region and a second region to define a first passage through which the air flows from the duct through the first region in a first direction in a vehicle cabin and a second passage through which the air flows from the duct through the second region in a second direction more downward than the first direction in the vehicle cabin.

A motor-driven air vent device for a vehicle is provided. The motor-driven air vent device connects a horizontal wing of an air vent to an output shaft of a driving motor through a link structure and rotatably operates the driving motor in the forward direction or the reverse direction by a touch type switch operation. Accordingly, the vertical angular rotation operation for the horizontal wing is automatically performed by the operation of the link structure delivering the torque of the driving motor.

An outlet for a forced air system of a vehicle comprising: a primary air flow chamber; a secondary air flow chamber adjacent the primary air flow chamber; an air flow diverter between the primary air flow chamber and the secondary air flow chamber that diverts a portion of air flow from the primary air flow chamber and into the secondary air flow chamber, with the diverted portion of the air flow flowing back into the primary air flow chamber; and a tray configured to retain an aromatic agent, the tray movable into and out of the secondary air flow chamber to selectively place the aromatic agent in contact with air flowing through the secondary air flow chamber to aromatize the air before flowing back into the primary air flow chamber.

An air vent assembly includes an air inlet, an air outlet, and a plurality of channels positioned between the air inlet and the air outlet. A first set of fixed vanes is positioned in a first one of the channels. The fixed vanes of the first set are angled or curved in a first direction with respect to a flow vector of the air inlet. A second set of fixed vanes is positioned in a second one of the channels. The fixed vanes of the second set are angled or curved in a second direction with respect to a flow vector of the air inlet. A gate is positioned within grooves of each of the first and second sets of fixed vanes. The gate is configured to regulate a position at which air may enter the first and second channels from the air inlet.

A duct system, and more particularly, a rigid endcap of the duct system can be configured to prevent a register from being damaged and from being displaced upon a curtain side airbag deployment. The duct system can include a headliner defining an opening, and a soft duct operatively connected to the headliner. The duct system can include a rigid endcap operatively connected to the headliner and to the soft duct. An airflow channel can be defined by the headliner, the soft duct, and the rigid endcap. Additionally, the rigid endcap can define a terminal end of the airflow channel, and the opening can be located along the airflow channel directly below the rigid endcap.

An air vent device for a vehicle includes a main vent and an auxiliary vent divided by a partition wall and combined in a single air duct, a plurality of horizontal wings mounted at positions behind the main vent and the auxiliary vent, and an air volume control wing included in the plurality of horizontal wings for distributing an air volume discharged into an interior of the vehicle through the main vent and an air volume discharged into the interior of the vehicle through the auxiliary vent. The air vent device is capable of securing an interior discharge air volume, adjusting a wind direction, securing an air duct installation space, and re-distributing a leakage amount of air.