초록 ▼

A computer keyboard tray includes a keyboard receiving member and a support member integrally molded within the interior of the keyboard receiving member. Depending from the bottom of the keyboard receiving member is an attachment assembly, allowing the computer keyboard tray to be removably attache

A computer keyboard tray includes a keyboard receiving member and a support member integrally molded within the interior of the keyboard receiving member. Depending from the bottom of the keyboard receiving member is an attachment assembly, allowing the computer keyboard tray to be removably attached to a computer keyboard support mechanism. A wrist rest extends from the top surface of the keyboard receiving member and is monolithically formed therewith in a unitary construction. In an alternative preferred embodiment, an adjustable wrist rest assembly is attached to the front of the keyboard receiving member. An adjustable mouse pad assembly is movably attached to the keyboard receiving member, permitting an operator to move the mouse pad between the opposing sides of the keyboard receiving member. Molding a support member within the interior of a unitarily constructed computer keyboard tray decreases the cost of manufacturing, and results in a comfortable, yet sturdy, computer keyboard tray.

대표청구항 ▼

A computer keyboard tray includes a keyboard receiving member and a support member integrally molded within the interior of the keyboard receiving member. Depending from the bottom of the keyboard receiving member is an attachment assembly, allowing the computer keyboard tray to be removably attache

A computer keyboard tray includes a keyboard receiving member and a support member integrally molded within the interior of the keyboard receiving member. Depending from the bottom of the keyboard receiving member is an attachment assembly, allowing the computer keyboard tray to be removably attached to a computer keyboard support mechanism. A wrist rest extends from the top surface of the keyboard receiving member and is monolithically formed therewith in a unitary construction. In an alternative preferred embodiment, an adjustable wrist rest assembly is attached to the front of the keyboard receiving member. An adjustable mouse pad assembly is movably attached to the keyboard receiving member, permitting an operator to move the mouse pad between the opposing sides of the keyboard receiving member. Molding a support member within the interior of a unitarily constructed computer keyboard tray decreases the cost of manufacturing, and results in a comfortable, yet sturdy, computer keyboard tray. and noise on board the aircraft, the vibration reduction system comprising: an active mount adapted to be disposed at each point of contact of the gearbox and airframe for mechanically suspending the airframe from the gearbox, the active mount comprising: first and second rigid members for each of the contact points of the gearbox and the airframe, the first rigid members adapted to be connected to the airframe at the contact points and the second rigid members adapted to be connected to the gearbox, first and second linear hydraulic actuators for each of the contact points, the hydraulic actuators having first and second ends, the first end of each actuator connected to the first rigid member, the actuators comprising: a piston slidably disposed in a cylinder for linear reciprocal movement for varying the length of the actuator along a principal axis, the piston and cylinder defining a fluid chamber, an a piston rod having one end connected to the piston and the other end extending from the cylinder at the second end of the actuator and connected to the second rigid member, wherein the second rigid members are suspended from the first rigid member and are movable relative to the first rigid members in response to reciprocal movement of the pistons along the principal axes and wherein the principal axes of the actuators are adapted to lie in he directional planes of the primary forces necessary for supporting the airframe and acting on the transmission gearbox mounting locations, means adapted for sensing parameters related to vibration of the airframe, the sensing means producing a signal output representative of the sensed parameter, hydraulic actuation means for supplying pressurized hydraulic fluid to the actuators, the hydraulic actuation means including a source of pressurized hydraulic fluid and an electro-hydraulic valve hydraulically connected between the source and the hydraulic actuators, wherein the length of the actuators is varied by selectively supplying a flow of pressurized hydraulic fluid from the source to the fluid chamber of the actuators and relieving the pressurized hydraulic fluid from the fluid chamber of the actuators to move the pistons in the cylinders alone the principal axes, and means operatively connected to the valve and the sensing means for receiving the signals produced by the sensing means and generating output control signals to the valve responsive to the sensing means signals for selectively supplying a flow of pressurized hydraulic fluid from the source to the actuators for varying the length of the actuators in the planes of the primary supporting forces and moving the gearbox in the planes relative to the airframe at a frequency for reducing the transfer of vibration through the active mount to the airframe. 3. The vibration reduction system as recited in claim 2, wherein the principal axis of the first actuator is substantially vertical. 4. The vibration reduction system as recited in claim 2, wherein the principal axis of the second actuator is substantially horizontal. 5. The vibration reduction system as recited in claim 2, wherein the sensing means comprises a position transducer for sensing position of the gearbox relative to the airframe and generating a signal output whose magnitude is a function of the position. 6. The vibration reduction system as recited in claim 2, wherein the sensing means comprises a pressure transducer for sensing hydraulic fluid pressure and generating a signal output whose magnitude is a function of the pressure. 7. The vibration reduction system as recited in claim 2, wherein the sensing means comprises an acceleration transducer for sensing acceleration and generating a signal output whose magnitude is a function of the acceleration. 8. The vibration reduction system as recited in claim 2 wherein the means for receiving the signals from the sensing means and generating output control signals to the valve includes a computer for appl