Trolley system and method for transferring cargo in relation to a cargo compartment of a vehicle

Patent metadata

Field	Value
Publication number	US-11628953-B2
Application number	US-202217706710-A
Country	US
Kind code	B2
Filing date	Mar 29, 2022
Priority date	Mar 24, 2020
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

A trolley system for transferring cargo in relation to a cargo compartment of a vehicle includes a frame defining a cargo-retaining platform. The cargo-retaining platform is configured to receive and retain the cargo. At least a portion of a lower surface of the frame is formed of a low friction material. One or more handles are moveably coupled to the frame. The handle(s) are configured to be moved between a retracted position and an extended position. One or more attachments are configured to secure the cargo on the cargo-retaining platform.

First claim

What is claimed is:

1. A method for transferring cargo in relation to a cargo compartment of a vehicle, the method comprising:
positioning a retaining pan of a frame of a trolley system underneath the cargo;
retaining the cargo on a cargo-retaining platform of the frame;
securing the cargo on the cargo-retaining platform with one or more attachments coupled to the frame;
moving one or more handles coupled to the frame between a retracted position and an extended position; and
sliding a portion of a lower surface of the frame formed of a low friction material over a floor surface.

2. The method of claim 1 , wherein said moving comprises outwardly extending a first grasping portion and a second grasping portion of the one or more handles from the frame when the handles are in the retracted position.

3. The method of claim 1 , further comprising rolling the trolley system via one or more rollers coupled to the frame.

4. The method of claim 3 , wherein lower surfaces of the one or more rollers are within a plane that is above or coplanar with the lower surface of the frame.

5. The method of claim 3 , further comprising upwardly pivoting the trolley system via the one or more handles in the extended position about an axis of the one or more rollers so that the one or more rollers directly contact a floor and allow the trolley system to be rolled via the one or more rollers.

6. The method of claim 3 , further comprising upwardly pivoting the trolley system, by the one or more handles in the extended position, so that the one or more rollers directly contact a floor.

7. The method of claim 1 , wherein the frame comprises low friction pads that are formed of the low friction material.

8. The method of claim 1 , wherein the frame comprises a chamfered first lower edge at a first end, and a chamfered second lower edge at a second end that is opposite from the first end.

9. The method of claim 1 , wherein the one or more attachments comprises one or more straps.

10. The method of claim 1 , wherein the frame comprises:
a first handle retainer at a first side and first end;
a second handle retainer at a second side and the first end, wherein the second side is opposite from the first side;
a third handle retainer at the first side and a second end, wherein the second end is opposite from the first end, wherein the first handle retainer is spaced apart from and coaxial with the third handle retainer; and
a fourth handle retainer at the send side and the second end, wherein the second handle retainer is spaced apart from and coaxial with the fourth handle retainer;

wherein the trolley system further comprises:
a first handle moveably retained by the first handle retainer and the third handle retainer of the frame, wherein the first handle comprises a first grasping portion and a second grasping portion opposite from the first grasping portion; and
a second handle moveably retained by the second handle retainer and the fourth handle retainer of the frame, wherein the second handle comprises a third grasping portion and a fourth grasping portion opposite from the third grasping portion, wherein each of the first handle and the second handle is configured to be moved between a retracted position and an extended position, wherein the first grasping portion extends outwardly from the first handle retainer in the retracted position, wherein the second grasping portion extends outwardly from the third handle retainer in the retracted position, wherein the third grasping portion extends outwardly from the second handle retainer in the retracted position, and wherein the fourth grasping portion extends outwardly from the fourth handle retainer in the retracted position, wherein four grasping areas defined by the first grasping portion, the second grasping portion, the third grasping portion, and the fourth grasping portion are available when the first handle and the second handle are in the retracted position, wherein the first grasping portion and the third grasping portion are outwardly extended from the first handle retainer and the second handle retainer, respectively, when the first handle and the second handle are in the extended position, and wherein the second grasping portion and the fourth grasping portion are inwardly disposed closer to the first handle retainer and the second handle retainer, respectively, in the extended position.

11. A method for transferring cargo in relation to a cargo compartment of a vehicle, the method comprising:
positioning a retaining pan of a frame underneath the cargo;
retaining cargo on a cargo-retaining platform of the frame of a trolley system;
securing the cargo on the cargo-retaining platform with one or more attachments coupled to the frame;
moving one or more handles coupled to the frame between a retracted position and an extended position;
sliding a portion of a lower surface of the frame formed of a low friction material over a floor surface;
upwardly pivoting the trolley system, by the one or more handles in the extended position, so that one or more rollers directly contact a floor; and
rolling the trolley system via one or more rollers coupled to the frame.

12. The method of claim 11 , wherein said moving comprises outwardly extending a first grasping portion and a second grasping portion of the one or more handles from the frame when the handles are in the retracted position.

13. The method of claim 11 , wherein lower surfaces of the one or more rollers are within a plane that is above or coplanar with the lower surface of the frame.

14. The method of claim 11 , wherein the trolley system is upwardly pivoted via the one or more handles in the extended position about an axis of the one or more rollers so that the one or more rollers directly contact the floor and allow the trolley system to be rolled via the one or more rollers.

15. The method of claim 11 , wherein the frame comprises low friction pads that are formed of the low friction material.

16. The method of claim 11 , wherein the frame comprises a chamfered first lower edge at a first end, and a chamfered second lower edge at a second end that is opposite from the first end.

17. The method of claim 11 , wherein the one or more attachments comprises one or more straps.

18. The method of claim 11 , wherein the frame comprises:
a first handle retainer at a first side and first end;
a second handle retainer at a second side and the first end, wherein the second side is opposite from the first side;
a third handle retainer at the first side and a second end, wherein the second end is opposite from the first end, wherein the first handle retainer is spaced apart from and coaxial with the third handle retainer; and
a fourth handle retainer at the send side and the second end, wherein the second handle retainer is spaced apart from and coaxial with the fourth handle retainer;

wherein the trolley system further comprises:
a first handle moveably retained by the first handle retainer and the third handle retainer of the frame, wherein the first handle comprises a first grasping portion and a second grasping portion opposite from the first grasping portion; and
a second handle moveably retained by the second handle retainer and the fourth handle retainer of the frame, wherein the second handle comprises a third grasping portion and a fourth grasping portion opposite from the third grasping portion, wherein each of the first handle and the second handle is configured to be moved between a retracted position and an extended position, wherein th

Assignees

• Boeing Co

Inventors

• Clos William Robert

Classifications

• B64F1/324 Primary

  Luggage loaders specially adapted for loading individual luggage items into or out of the aircraft · CPC title

• B65G2814/0398

  for aircraft · CPC title

• B65G67/00

  Loading or unloading vehicles (by means incorporated in the vehicles B60-B64, e.g., B60P1/00, B61D9/00, B63B27/00, B64D9/00; ground or aircraft-carrier-deck installations for aircraft B64F1/32) · CPC title

• B65G13/11

  Roller frames · CPC title