Robotic enabled vertical lift

Patent metadata

Field	Value
Publication number	US-10023434-B2
Application number	US-201615268775-A
Country	US
Kind code	B2
Filing date	Sep 19, 2016
Priority date	Sep 19, 2016
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

Robotic enabled lift concepts are described. In one embodiment, a vertical lift includes a vertically directed track assembly and linear actuator that extend between first and second levels. The lift further includes a lift platform having a continuous contact roller such as a continuous belt, for example, a platform guide assembly for engagement with the track assembly, and a motion translation mechanism mechanically coupled between the continuous contact roller and the linear actuator. A robotic drive unit can drive upon and dock with the lift platform. In that docked position, the robotic drive unit can rotate its drive wheels to raise or lower itself between the first and second levels based on the translation of the motive forces of the drive wheels through the motion translation mechanism and to the vertically directed linear actuator. Other embodiments include a lift arm, an inclined track assembly, and a lift carriage.

First claim

Therefore, at least the following is claimed:

1. A vertical reciprocating lift, comprising:
a vertically directed track assembly that extends between a first floor level and a second floor level;
a first gear of a vertically directed linear actuator that extends between the first floor level and the second floor level; and
a lift platform comprising an engagement dock, a continuous contact roller exposed through an opening in a top surface of the lift platform, a platform guide assembly for engagement with the vertically directed track assembly, a second gear of the linear actuator, and a motion translation mechanism mechanically coupled between the continuous contact roller and the second gear of the linear actuator, wherein:
the engagement dock comprises an arresting mechanism configured to mechanically interfere with and arrest at least one of the motion translation mechanism or the second gear of the linear actuator when a mating connector of a robotic drive unit is disengaged from the engagement dock.

2. The vertical reciprocating lift according to claim 1 , wherein the motion translation mechanism mechanically translates motive forces from the continuous contact roller to the second gear of the linear actuator to either raise or lower the lift platform between the first floor level and the second floor level using the linear actuator.

3. The vertical reciprocating lift according to claim 1 , wherein:
when the mating connector of the robotic drive unit is engaged with the engagement dock of the lift platform, at least one drive wheel of the robotic drive unit is positioned over the continuous contact roller to apply motive forces to the continuous contact roller and either raise or lower the lift platform between the first floor level and the second floor level.

4. The vertical reciprocating lift according to claim 1 , wherein the arresting mechanism comprises at least one of an interfering hook, tooth, or pin to mechanically interfere with and arrest at least one of the motion translation mechanism or the second gear of the linear actuator when the mating connector of the robotic drive unit is disengaged from the engagement dock of the lift platform.

5. The vertical reciprocating lift according to claim 1 , wherein the arresting mechanism of the engagement dock releases at least one of the motion translation mechanism or the second gear of the linear actuator when the mating connector of the robotic drive unit is engaged with the engagement dock of the lift platform.

6. The vertical reciprocating lift according to claim 1 , further comprising a counterweight assembly comprising a weight counterbalanced against the lift platform.

7. The vertical reciprocating lift according to claim 1 , wherein the continuous contact roller comprises a pair of continuous tread belts exposed through the opening in the top surface of the lift platform.

8. The vertical reciprocating lift according to claim 1 , wherein:
the continuous contact roller comprises at least two pairs of rollers exposed through the opening in the top surface of the lift platform; and
the at least two pairs of rollers are mechanically joined through the motion translation mechanism and substantially seize in response to an application of substantially opposing motive forces.

9. A vertical reciprocating lift, comprising:
a first gear of a vertically directed linear actuator that extends between a first floor level and a second floor level; and
a means for supporting a robotic drive unit between the first floor level and the second floor level along the first gear of the vertically directed linear actuator, the means for supporting the robotic drive unit comprising an engagement dock and a means for mechanically translating motive forces from a drive wheel of the robotic drive unit to a second gear of the linear actuator to raise or lower the means for supporting the robotic drive unit between the first floor level and the second floor level, wherein:
the engagement dock comprises a means for mechanically interfering with the means for mechanically translating motive forces when a mating connector of a robotic drive unit is disengaged from the engagement dock.

10. The vertical reciprocating lift according to claim 9 , further comprising a retractable floor panel assembly configured to advance or retract at least one floor panel based on a vertical position of the means for supporting the robotic drive unit between the first floor level and the second floor level.

11. The vertical reciprocating lift according to claim 9 , wherein:
the means for supporting a robotic drive unit comprises a lift platform, a continuous contact roller exposed through an opening in a top surface of the lift platform, and a second gear of the linear actuator; and
the means for mechanically translating the motive forces comprises a motion translation mechanism mechanically coupled between the continuous contact roller and the second gear of the linear actuator.

12. The vertical reciprocating lift according to claim 11 , wherein the continuous contact roller comprises a pair of continuous tread belts exposed through the opening in the top surface of the lift platform.

13. The vertical reciprocating lift according to claim 11 , further comprising a counterweight assembly comprising a weight counterbalanced against the lift platform.

14. The vertical reciprocating lift according to claim 11 , wherein the motion translation mechanism mechanically translates motive forces from the continuous contact roller to the second gear of the linear actuator to either raise or lower the lift platform between the first floor level and the second floor level using the linear actuator.

15. The vertical reciprocating lift according to claim 11 , wherein:
when the mating connector of the robotic drive unit is engaged with the engagement dock of the lift platform, at least one drive wheel of the robotic drive unit is positioned over the continuous contact roller to apply motive forces to the continuous contact roller and either raise or lower the lift platform between the first floor level and the second floor level.

16. The vertical reciprocating lift according to claim 9 , wherein the means for mechanically interfering comprises at least one of an interfering hook, tooth, or pin to mechanically interfere with and arrest at least one of the means for mechanically translating motive forces or the second gear of the linear actuator when the mating connector of the robotic drive unit is disengaged from the engagement dock.

17. A vertical reciprocating lift, comprising:
a first gear of a vertically directed linear actuator that extends between floor levels; and
a lift platform comprising an engagement dock, a roller exposed through an opening in a top surface of the lift platform, a second gear of the linear actuator, and a motion translation mechanism mechanically coupled between the roller and the second gear of the linear actuator, wherein:
the engagement dock comprises an arresting mechanism configured to mechanically interfere with and arrest at least one of the motion translation mechanism or the second gear of the linear actuator when a mating connector of a robotic drive unit is disengaged from the engagement dock.

18. The vertical reciprocating lift according to claim 17 , wherein the motion translation mechanism mechanically translates motive forces from the roller to the second gear of the linear actuator to either raise or lower the lift platform.

19. The vertical reciprocating lift according to claim 17 , w

Assignees

• Amazon Tech Inc

Inventors

• Brady Tye Michael
• Allard James R
• Culliton Thomas

Classifications

• B66B9/02 Primary

  actuated mechanically otherwise than by rope or cable · CPC title

• B66F7/243

  Ramps · CPC title

• B66B9/00

  Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) · CPC title

• B65G1/0492

  with cars adapted to travel in storage aisles · CPC title

• B66B9/022

  by rack and pinion drives · CPC title