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A supply rack includes a primary support wall having a front face, a rear face, an upper edge, a lower edge, and opposing vertical side edges. A pair of side walls extend from the primary support wall, each side wall further terminating in an outer vertical edge and having a plurality of apertures f

A supply rack includes a primary support wall having a front face, a rear face, an upper edge, a lower edge, and opposing vertical side edges. A pair of side walls extend from the primary support wall, each side wall further terminating in an outer vertical edge and having a plurality of apertures formed through the side wall adjacent the outer vertical edge, whereby apertures in one side wall are aligned with corresponding apertures in a remaining side wall. At least one support rod having opposite ends is provided. Each of the opposite ends of the support rod is insertable through corresponding aligned apertures in the pair of side walls, the at least one support rod including holes formed therethrough adjacent opposite ends thereof. A hanger portion of either an arcuate or an angular shape is coextensively formed with the upper edge of the primary support wall, such that the hanger portion solely supports a weight of the supply rack. Alternatively, a single intermediate wall may be used in place of the opposing side walls, the at least one support rod being inserted though just one aperture of the intermediate wall.

대표청구항 ▼

A supply rack includes a primary support wall having a front face, a rear face, an upper edge, a lower edge, and opposing vertical side edges. A pair of side walls extend from the primary support wall, each side wall further terminating in an outer vertical edge and having a plurality of apertures f

A supply rack includes a primary support wall having a front face, a rear face, an upper edge, a lower edge, and opposing vertical side edges. A pair of side walls extend from the primary support wall, each side wall further terminating in an outer vertical edge and having a plurality of apertures formed through the side wall adjacent the outer vertical edge, whereby apertures in one side wall are aligned with corresponding apertures in a remaining side wall. At least one support rod having opposite ends is provided. Each of the opposite ends of the support rod is insertable through corresponding aligned apertures in the pair of side walls, the at least one support rod including holes formed therethrough adjacent opposite ends thereof. A hanger portion of either an arcuate or an angular shape is coextensively formed with the upper edge of the primary support wall, such that the hanger portion solely supports a weight of the supply rack. Alternatively, a single intermediate wall may be used in place of the opposing side walls, the at least one support rod being inserted though just one aperture of the intermediate wall. hreshold angular velocity signal is indicative of a threshold angular velocity at about 10°-30° per second. 7. The method of claim 1 further comprising calculating the actual torsion on the shaft based on the torque signal. 8. The method of claim 1 wherein the threshold torque signal includes a voltage of about 0-1 volts. 9. The method of claim 1 wherein the threshold angular velocity is a threshold angular velocity signal is about 25-75 pulses per second. 10. The method of claim 1 wherein generating the simulated steering feel torque on the steering wheel defines a torque control mode in which the steering wheel is controlled. 11. The method of claim 10 wherein returning the steering wheel to the center position defines a return center control mode in which the steering wheel is controlled. 12. The method of claim 11 wherein the steering wheel is controlled in a current control mode representing one of the torque control mode or the return center control mode in which the steering wheel is controlled prior to receiving the actual torque signal and the angular velocity signal. 13. The method of claim 12 further comprising maintaining control of the steering wheel in the current control mode, if the actual torsion is greater than the threshold torque value and the actual angular velocity is greater than the threshold angular velocity. 14. The method of claim 12 further comprising maintaining control of the steering wheel in the current control mode, if the actual torsion is less than the threshold torque value and the actual angular velocity is less than the threshold angular velocity. 15. The method of claim 1 wherein the simulated steering feel torque is resistive torque on the steering wheel opposite the direction of the actual torsion on the steering wheel. 16. The method of claim 1 wherein the specified angular velocity is 0-540° per second. 17. The method of claim 1 further comprising: sending a torque mode signal to generate the simulated steering feel torque on the steering wheel, if the torque error signal is greater than the threshold torque signal and the velocity error signal is less than the actual angular velocity signal; and sending a return center mode signal to return the steering wheel to the center position, if the torque error signal is less than the threshold torque signal and the velocity error signal is greater than the actual angular velocity signal. 18. A method of controlling a steering wheel having a steering shaft of a vehicle with front road wheels for simulated steering feel on the steering wheel in a steer-by-wire system, the method comprising: receiving an actual torque signal indicative of actual torsion on the steering wheel; determining a torque error signal based on a reference torque signal and the actual torque signal; comparing the torque error signal to a threshold torque signal; sending a torque mode signal to generate the simulated steering feel torque on the steering wheel, if the torque error signal is greater than the threshold torque signal and the velocity error signal is less than the actual angular velocity signal; receiving an angular velocity signal indicative of actual angular velocity of the steering wheel; determining a velocity error signal based on a reference velocity signal and the actual angular velocity signal; comparing the velocity error signal to a threshold angular velocity signal; sending a return center mode signal to return the steering wheel to the center position, if the torque error signal is less than the threshold torque signal and the velocity error signal is greater than the actual angular velocity signal; generating a simulated steering feel torque on a steering wheel, if the torque error signal is greater than the threshold torque signal and the velocity error signal is less than the actual angular velocity signal; and returning the steering wheel to a center position at a specified angular velocity, if the torque error signal is le