Headrail of a window covering with safety device for assessing the stability of the headrail mounting
First Claim
1. A headrail with a safety device for assessing the stability of a headrail mounting comprising:
- a first end and a second end of the headrail;
an extensible end cap assembly disposed at least at the first end of the headrail,the extensible end cap assembly comprising;
a piston, the piston comprising at least one spring, and a mounting bracket, wherein each of the at least one spring comprises a first end and a second end, wherein the first end of each of the at least one spring is connected to and applies pressure to the mounting bracket when the at least one spring is compressed;
a floating bearing, wherein the floating bearing is connected to the second end of the at least one spring;
a crankshaft, wherein the crankshaft is connected to the floating bearing, and wherein, upon rotation, the crankshaft either compresses or extends the at least one spring;
a lever arm, wherein the lever arm is connected to the crankshaft, wherein the lever arm rotates the crankshaft causing the crankshaft to push against the piston thereby compressing the at least one spring when the lever arm is in a first position to thus create a compression fit between the mounting bracket and a window casing in which the headrail is mounted;
a pressure sensor, wherein the pressure sensor is connected to the piston and contacts the mounting bracket and wherein the pressure sensor detects the amount of pressure applied by the piston to the mounting bracket.
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Accused Products
Abstract
The invention is an intelligent headrail for a window covering which includes an extensible end cap which applies force to the adjacent window or door frame to hold the headrail in place. The end cap includes a pressure sensor or a force sensing resistor to detect whether sufficient force is present to safely hold the headrail in place. The headrail may include a controller which is connected to the pressure sensor or a force sensing resistor. The controller may include program code which identifies the safety status of the window covering based on the pressure or force reading. The controller may include a data transmission port which transmits pressure or force readings to an output device. The program code may also send a report to the output device to indicate whether the force or pressure is moderately low or so low that the window covering is in danger of falling.
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Citations
20 Claims
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1. A headrail with a safety device for assessing the stability of a headrail mounting comprising:
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a first end and a second end of the headrail; an extensible end cap assembly disposed at least at the first end of the headrail, the extensible end cap assembly comprising; a piston, the piston comprising at least one spring, and a mounting bracket, wherein each of the at least one spring comprises a first end and a second end, wherein the first end of each of the at least one spring is connected to and applies pressure to the mounting bracket when the at least one spring is compressed; a floating bearing, wherein the floating bearing is connected to the second end of the at least one spring; a crankshaft, wherein the crankshaft is connected to the floating bearing, and wherein, upon rotation, the crankshaft either compresses or extends the at least one spring; a lever arm, wherein the lever arm is connected to the crankshaft, wherein the lever arm rotates the crankshaft causing the crankshaft to push against the piston thereby compressing the at least one spring when the lever arm is in a first position to thus create a compression fit between the mounting bracket and a window casing in which the headrail is mounted; a pressure sensor, wherein the pressure sensor is connected to the piston and contacts the mounting bracket and wherein the pressure sensor detects the amount of pressure applied by the piston to the mounting bracket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A headrail with a safety device for assessing the stability of a headrail mounting comprising:
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a first end and a second end of the headrail; an extensible end cap assembly disposed at least at the first end of the headrail, the extensible end cap assembly comprising; a piston, the piston comprising at least one spring, and a mounting bracket, wherein each of the at least one spring comprises a first end and a second end, wherein the first end of each of the at least one spring is connected to and applies pressure to the mounting bracket when the at least one spring is compressed; a floating bearing, wherein the floating bearing is connected to the second end of the at least one spring; a crankshaft, wherein the crankshaft is connected to the floating bearing, and wherein, upon rotation, the crankshaft either compresses or extends the at least one spring; a lever arm, wherein the lever arm is connected to the crankshaft, wherein the lever arm rotates the crankshaft causing the crankshaft to push against the piston thereby compressing the at least one spring when the lever arm is in a first position to thus create a compression fit between the mounting bracket and a window casing in which the headrail is mounted; a force sensing resistor, wherein the force sensing resistor is connected to the piston and wherein the force sensing resistor detects the amount of force applied by the piston to the mounting bracket. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification