Manual lumbar pump assembly
First Claim
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1. A pump assembly for a vehicle seatback, comprising:
- a plurality of air bladders defining a lumbar support;
a valve body having an inlet and a plurality of outlets coupled with the associated plurality of air bladders;
a selection device including a knob rotatable about an axis and operably coupled with the valve body for engaging the inlet with a select one of the plurality of air bladders;
a manually compressible air chamber coupled with the inlet for inflating the select one; and
a lever operably coupled with the manually compressible air chamber and rotatable about the axis to compress an interior cavity of the manually compressible air chamber for dispensing air to the inlet.
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Abstract
A pump assembly for a vehicle seatback includes a plurality of air bladders defining a lumbar support. A valve body has an inlet and a plurality of outlets that are coupled with the associated plurality of air bladders. A selection device is operably coupled with the valve body for engaging a select one of the plurality of air bladders with the inlet. A manually compressible air chamber is coupled with the inlet for inflating the select one.
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Citations
18 Claims
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1. A pump assembly for a vehicle seatback, comprising:
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a plurality of air bladders defining a lumbar support; a valve body having an inlet and a plurality of outlets coupled with the associated plurality of air bladders; a selection device including a knob rotatable about an axis and operably coupled with the valve body for engaging the inlet with a select one of the plurality of air bladders; a manually compressible air chamber coupled with the inlet for inflating the select one; and a lever operably coupled with the manually compressible air chamber and rotatable about the axis to compress an interior cavity of the manually compressible air chamber for dispensing air to the inlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A lumbar pump assembly comprising:
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first and second air bladders defining a lumbar support; a valve body fluidly coupled with the first and second air bladders; an air chamber having an exhaust port fluidly coupled with the valve body and configured to manually dispense air therefrom; a selection device including a knob rotatable about an axis between first and second positions that engage the exhaust port with the respective first and second air bladders; and a lever operably coupled with the air chamber and rotatable about the axis to manually compress the air chamber for dispensing air to the valve body. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A lumbar pump assembly comprising:
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a seatback having a plurality of air bladders disposed thereon to define a lumbar support; an air chamber having an intake port for receiving ambient air and an exhaust port for dispensing air upon compression of the air chamber and further having a pneumatic cylinder that has a piston head slidably disposed within a cylindrical cavity; a lever rotatable about an axis and coupled with the air chamber for manually compressing the air chamber by rotation of the lever, the lever being pivotally coupled with a link that extends into the cylindrical cavity to pivotally couple with the piston head for sliding the piston head within the cylindrical cavity to manually dispense air to the valve body by rotation of the lever; a valve body having an inlet fluidly coupled with the exhaust port and a plurality of outlets coupled respectively with the plurality of air bladders; and a selection device including a knob rotatable about the axis and coupled with the valve body for selectively engaging the inlet with a select one of the plurality of outlets for inflating the respective air bladder. - View Dependent Claims (17, 18)
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Specification