An autonomous transport robot for transporting a payload, the autonomous transport robot including a drive section assembly having at least one motor and a pair of drive wheels coupled to the motor, a frame configured to support a payload, a transfer arm connected to the frame and configured for the
An autonomous transport robot for transporting a payload, the autonomous transport robot including a drive section assembly having at least one motor and a pair of drive wheels coupled to the motor, a frame configured to support a payload, a transfer arm connected to the frame and configured for the autonomous transfer of payload to and from the frame, and a suspension system movably connecting the drive section assembly and the frame allowing relative movement between the frame and the drive section assembly.
대표청구항▼
1. An autonomous transport vehicle for transporting a payload, the autonomous transport vehicle comprising: a frame having at least four corners and at least four support wheels, the four support wheels being distributed at least proximate the at least four corners of the frame to support the frame
1. An autonomous transport vehicle for transporting a payload, the autonomous transport vehicle comprising: a frame having at least four corners and at least four support wheels, the four support wheels being distributed at least proximate the at least four corners of the frame to support the frame on and contact a travel surface on which the autonomous transport vehicle travels, where the frame defines a payload support section and a drive section coupled to each other by an articulated coupling;a transfer arm connected to the payload support section;wherein the drive section has a motor and at least two support wheels of the at least four support wheels are disposed on opposite sides of the drive section, the at least two support wheels being drive wheels coupled to the motor. 2. The autonomous transport vehicle of claim 1, wherein the articulated coupling is configured to maintain the drive wheels of the drive section in substantial contact with the travel surface. 3. The autonomous transport vehicle of claim 1, wherein the articulated coupling includes a pivot member mounted to one of the payload support section and the drive section and a pivot axle mounted to the other one of the payload support section and the drive section, where the pivot axle and pivot member are configured to engage each other to form a pivot coupling between the payload support section and the drive section. 4. The autonomous transport vehicle of claim 1, wherein one or more guide members are connected to one of the payload support section and the drive section, the one or more guide members being configured to engage an interface surface of the other one of the payload support section and the drive section to, at least in part, substantially prevent relative yaw and pitch between the payload support section and the drive section. 5. The autonomous transport vehicle of claim 1, further comprising an articulated coupling lockout device connected to one or more of the payload support section and the drive section, the articulated coupling lockout device being configured to passively lock the articulated coupling as the transfer arm is extended from the payload support section, where locking of the articulated coupling substantially prevents relative pivoting movement between the drive section and the payload support section. 6. The autonomous transport vehicle of claim 5, wherein the articulated coupling lockout device is configured such that the articulated coupling is free to move when the transfer arm is in a retracted position. 7. The autonomous transport vehicle of claim 5, wherein the articulated coupling lockout device includes an engagement member mounted to one of the payload support section and the drive section, a locking device mounted to the other one of the payload support section and the drive section and an actuation member configured to actuate the locking device causing the locking device to engage the engagement member. 8. The autonomous transport vehicle of claim 7, wherein the articulated coupling lockout device includes a body and a lever member pivotally mounted to the body, wherein the engagement member extends between the body and the lever member, the body and the lever member being configured such that actuation of the locking device causes the engagement member to be clamped between the lever member and the body. 9. The autonomous transport vehicle of claim 8, wherein the lockout device includes a resilient member configured to move the lever member away from the engagement member for, at least in part, unlocking the articulated coupling. 10. The autonomous transport vehicle of claim 7, wherein the actuation member comprises a cam connected to a drive system of the transfer arm, wherein the cam is configured to be passively rotated during extension of the transfer arm. 11. An autonomous transport vehicle for transporting a payload, the autonomous transport vehicle comprising: a frame having at least four corners and at least four support wheels, the four support wheels being distributed at least proximate the at least four corners of the frame to support the frame on and contact a travel surface on which the autonomous transport vehicle travels, where the frame defines a payload support section and a drive section coupled to each other by a locking articulated coupling system having an articulated coupling lockout device;a transfer arm connected to the payload support section;wherein the drive section has a motor and at least two support wheels of the at least four support wheels are disposed on opposite sides of the drive section, the at least two support wheels being drive wheels coupled to the motor. 12. The autonomous transport vehicle of claim 11, wherein the locking articulated coupling system comprises: an articulated coupling configured to allow rolling movement between the payload support section and the drive section along a common longitudinal axis; andthe articulated coupling lockout device being configured to automatically substantially prevent the rolling movement when the transfer arm is moved from a retracted position, where the transfer arm is configured to move between the retracted position and an extended position relative to the payload support section. 13. The autonomous transport vehicle of claim 12, wherein the articulated coupling lockout device is configured to automatically release the articulated coupling to allow the rolling movement when the transfer arm is moved to the retracted position. 14. The autonomous transport vehicle of claim 12, wherein the articulated coupling lockout device is connected to one or more of the payload support section and the drive section, the articulated coupling lockout device being configured to passively lock the articulated coupling as the transfer arm is extended from the payload support section. 15. The autonomous transport vehicle of claim 11, wherein the articulated coupling lockout device includes an engagement member mounted to one of the payload support section and the drive section, a locking device mounted to the other one of the payload support section and the drive section and an actuation member configured to actuate the locking device causing the locking device to engage the engagement member. 16. The autonomous transport vehicle of claim 15, wherein the articulated coupling lockout device includes a body and a lever member pivotally mounted to the body, wherein the engagement member extends between the body and the lever member, the body and the lever member being configured such that actuation of the locking device causes the engagement member to be clamped between the lever member and the body. 17. The autonomous transport vehicle of claim 16, wherein the articulated coupling lockout device includes a resilient member configured to move the lever member away from the engagement member for at least in part unlocking the articulated coupling. 18. The autonomous transport vehicle of claim 15, wherein the actuation member comprises a cam connected to a drive system of the transfer arm, wherein the cam is configured to be passively rotated during extension of the transfer arm. 19. The autonomous transport vehicle of claim 11, wherein the locking articulated coupling system is configured to maintain the drive wheels of the drive section in substantial contact with the travel surface. 20. The autonomous transport vehicle of claim 11, wherein the locking articulated coupling system includes a pivot member mounted to one of the payload support section and the drive section and a pivot axle mounted to the other one of the payload support section and the drive section, where the pivot axle and pivot member are configured to engage each other to form a pivot coupling between the payload support section and the drive section.
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