Air conditioning register

An air conditioning register to adjust a flow direction of air for air conditioning, the register comprising:

• a case having a ventilation passage for the air;
• at least one plate-shaped downstream fin that has a downstream fin pivot and is pivotally supported by the case via the downstream fin pivot;
• a plurality of primary upstream fins that are located upstream of the downstream fin in the ventilation passage, wherein each of the primary upstream fins extends in a direction orthogonal to the downstream fin, includes a primary upstream fin pivot, and is pivotally supported by the case via the primary upstream fin pivot;
• a secondary upstream fin that is located upstream of the downstream fin in the ventilation passage, wherein the secondary upstream fin includes a pivot, extends in the direction orthogonal to the downstream fin, is pivotally supported by the case via the secondary upstream fin pivot, and has a shaft extending along the secondary upstream fin pivot of the secondary upstream fin;
• an operation knob that is slidably attached onto the at least one downstream fin and has a pair of fork portions sandwiching the shaft of the secondary upstream fin;
• and
• a link mechanism that couples the primary upstream fins and the secondary upstream fin to each other, wherein
• the link mechanism includes a plurality of arms and a coupling rod, wherein each arm extends from one of the primary upstream fin pivot of the primary upstream fins and the secondary upstream fin in a direction orthogonal to the secondary upstream fin pivot, wherein each arm has a pin formed at a position offset from the primary upstream fin pivot or secondary upstream fin pivot,
• the primary upstream fins and the secondary upstream fin are capable of adjusting the flow direction of the air and selectively opening and closing the ventilation passage by tilting,
• a distance between the secondary upstream fin pivot and the pin in the arm of the secondary upstream fin is set to be longer than a distance between the primary upstream fin pivot and the pin in the arm of each primary upstream fin,
• the coupling rod couples each arm together via the pins, wherein the coupling rod includes a plurality of coupling portions each of which is coupled to the pins in the arms of each adjacent pair of the arms, and
• adjacent coupling portions are pivotally coupled via the pin in the arm.