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 pneumatic cylinder having a sealed head slidably disposed within a cylindrical cavity defining an outlet wherein the pneumatic cylinder is movably connected to the valve body;
a lever defining a first body rotatable about an axis extending through the first body;
a projection defining a second body fixed with the first body of the lever and extending from the axis away from the lever;
a link having a first end connected with the pneumatic cylinder and a second end connected with the projection; and
a valve body incorporating a selection device, the selection device operably engaging the outlet with a select one of the plurality of air bladders for inflating the select one of the plurality of air bladders, the lever being mounted to the valve body with the axis in a fixed position relative to the valve body.
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Abstract
A pump assembly for a vehicle seatback includes a plurality of air bladders defining a lumbar support and a pneumatic cylinder that has a sealed head slidably disposed within a cylindrical cavity coupled defining an outlet. A selection device operably engages the outlet with a select one of the plurality of air bladders for inflating the select one of the plurality of air bladders.
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Citations
20 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 pneumatic cylinder having a sealed head slidably disposed within a cylindrical cavity defining an outlet wherein the pneumatic cylinder is movably connected to the valve body; a lever defining a first body rotatable about an axis extending through the first body; a projection defining a second body fixed with the first body of the lever and extending from the axis away from the lever; a link having a first end connected with the pneumatic cylinder and a second end connected with the projection; and a valve body incorporating a selection device, the selection device operably engaging the outlet with a select one of the plurality of air bladders for inflating the select one of the plurality of air bladders, the lever being mounted to the valve body with the axis in a fixed position relative to the valve body. - 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; a pneumatic cylinder that has a piston head slidably disposed within a cylindrical cavity and an exhaust port fluidly coupled with the valve body, wherein the pneumatic cylinder is movably connected to the valve body; a lever defining a first body rotatable about an axis extending through the body; a projection defining a second body fixed with the first body of the lever and extending from the axis away from the lever; a link having a first end coupled with the pneumatic cylinder and a second end coupled with the projection such that rotation of the lever about the axis dispenses air from the pneumatic cylinder; and a valve body incorporating a selection device that selectively fluidly connects the exhaust port with the first and second air bladders, the lever being mounted to the valve body with the axis is a fixed position relative 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; a pneumatic cylinder defining a cylindrical cavity having a longitudinal axis, the pneumatic cylinder having a piston head slidably disposed within the cylindrical cavity along the longitudinal axis, the pneumatic cylinder configured for receiving ambient air and having an exhaust port for dispensing air from the cylindrical cavity; a lever defining a first body rotatable about a first pivot axis extending through the first body; a projection defining a second body fixed with the first body of the lever and extending from the axis away from the lever, the second body being coupled with the piston head for manually compressing an air chamber defined by the cylindrical cavity and the piston head; 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, the lever being mounted with the valve body with the axis in a fixed position relative to the valve body and the lever being spaced apart from the valve body in an axial direction with respect to the axis; and a selection device mounted within the valve body for selectively fluidly connecting the inlet with a select one of the plurality of outlets for inflating a respective one of the plurality of air bladders. - View Dependent Claims (17, 18, 19, 20)
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Specification