Lockable fork systems and methods for industrial vehicles

• US 10,549,972 B1
• Filed: 11/21/2018
• Issued: 02/04/2020
• Est. Priority Date: 11/21/2018
• Status: Active Grant

• Current Assignee: Hyster-Yale Materials Handling Incorporated (Nacco Industries Incorporated)
• Original Assignee: Hyster-Yale Group Inc.
• Inventors: Dunigan, Robert C., Williams, Kenneth
• Primary Examiner(s): Walters, John D
• Application Number:
  US16/197,931
• Time in Patent Office: 440 Days
• Field of Search: 180 685
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B62B 3/0612 power operated
• CPC Class Codes: B66F 9/07536 Battery stoppers, i.e. means to hold battery in position
• CPC Class Codes: B66F 9/12 Platforms; Forks; Other load supporting or gripping members
• CPC Class Codes: B66F 9/144 Movements of forks relative to each other - independent
• CPC Class Codes: H01M 50/262 with fastening means, e.g. locks
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A battery box and fork system for a vehicle having a first fork and a second fork configured to support one or more pallets positioned along a length of the first fork and the second fork. The first fork and the second fork are each independently lockable at their heel ends to a battery box.

Claims

1. A battery box and fork arrangement for a vehicle, comprising:

a battery box configured to retain a battery, the battery box comprising a base plate including a first locking component and a second locking component;

a torsion member coupled to the base plate, the torsion member including a first side arranged substantially orthogonally to the base plate, the torsion member first side including a third locking component, and a second side arranged substantially orthogonally to the base plate, the torsion member second side including a fourth locking component;

a first fork comprising a heel end and a toe end, wherein the heel end of the first fork comprises (i) a first surface configured to be locked to the base plate first locking component and including a fifth locking component configured to engage the first locking component of the base plate when the first surface locks to the base plate, and (ii) a second surface configured to be locked to the torsion member first side and including a sixth locking component configured to engage the third locking component of the torsion member first side when the second surface locks to the torsion member first side; and

a second fork comprising a heel end and a toe end, wherein the heel end of the second fork comprises (i) a first surface configured to be locked to the base plate second locking component and including a seventh locking component configured to engage the second locking component of the base plate when the first surface locks to the base plate, and (ii) a second surface configured to be locked to the torsion member second side and including an eighth locking component configured to engage the fourth locking component of the torsion member second side when the second surface locks to the torsion member second side.

2. The battery box and fork arrangement of claim 1, wherein the first locking component comprises a first bore, the second locking component comprises a second bore, the third locking component comprises a third bore, the fourth locking component comprises a fourth bore, the fifth locking component comprises a fifth bore, the sixth locking component comprises a sixth bore, the seventh locking component comprises a seventh bore, and the eighth locking component comprises an eighth bore;

and further comprising;

a first fastener locking the first fork first surface to the base plate via the first and fifth bores;

a second fastener locking the first fork second surface to the torsion member first side via the third and sixth bores;

a third fastener locking the second fork first surface to the base plate via the second and seventh bores; and

a fourth fastener locking the second fork second surface to the torsion member second side via the fourth and eighth bores.

3. The battery box and fork arrangement of claim 1, wherein the first locking component comprises a first plurality of bores, the second locking component comprises a second plurality of bores, the third locking component comprises a third plurality of bores, the fourth locking component comprises a fourth plurality of bores, the fifth locking component comprises a fifth plurality of bores, the sixth locking component comprises a sixth plurality of bores, the seventh locking component comprises a seventh plurality of bores, and the eighth locking component comprises an eighth plurality of bores;

and further comprising;

a first plurality of fasteners locking the first fork first surface to the base plate via the first plurality of bores and the fifth plurality of bores;

a second plurality of fasteners locking the first fork second surface to the torsion member first side via the third plurality of bores and the sixth plurality of bores;

a third plurality of fasteners locking the second fork first surface to the base plate via the second plurality of bores and the seventh plurality of bores; and

a fourth plurality of fasteners locking the second fork second surface to the torsion member second side via the fourth plurality of bores and the eighth plurality of bores.

4. The battery box and fork arrangement of claim 3, wherein

the fifth plurality of bores are disposed about a perimeter of the top surface of the heel end of the first fork;

and

the seventh plurality of bores are disposed about a perimeter of the top surface of the heel end of the second fork.

5. The battery box and fork arrangement of claim 3, wherein the first plurality of fasteners comprises a plurality of bolts, the second plurality of fasteners comprises a plurality of bolts, the third plurality of fasteners comprises a plurality of bolts, and the fourth plurality of fasteners comprises a plurality of bolts.

6. The battery box and fork arrangement of claim 1, wherein the first locking component comprises a first protrusion, the second locking component comprises a second protrusion, the third locking component comprises a third protrusion, the fourth locking component comprises a fourth protrusion, the fifth locking component comprises a first slot configured to receive the first protrusion, the sixth locking component comprises a second slot configured to receive the second protrusion, the seventh locking component comprises a third slot configured to receive the third protrusion, and the eighth locking component comprises a fourth slot configured to receive the fourth protrusion.

7. The battery box and fork arrangement of claim 1, wherein the base plate and the torsion member are integrally formed together.

8. The battery box and fork arrangement of claim 1, wherein:

the first fork comprises a heel portion, and wherein the first surface configured to be locked to the base plate and the fifth locking component of the first fork are located on a top surface of the heel portion, and the second surface configured to be locked to the torsion member first side and the sixth locking component are located on a side of the heel portion substantially orthogonal to the top surface; and

the second fork comprises a heel portion, and wherein the first surface configured to be locked to the base plate and the seventh locking component of the second fork are located on a top surface of the heel portion, and the second surface configured to be locked to the torsion member second side and the eighth locking component are located on a side of the heel portion substantially orthogonal to the top surface.

9. The battery box and fork arrangement of claim 8, wherein

the top surface of the heel portion of the first fork is substantially smooth to facilitate locking to the base plate of the battery box;

and

the top surface of the heel portion of the second fork is substantially smooth to facilitate locking to the base plate of the battery box.

10. The battery box and fork arrangement of claim 9, wherein:

a side surface of the heel portion of the first fork is substantially smooth to facilitate locking to the first side of the torsion member; and

a side surface of the heel portion of the second fork is substantially smooth to facilitate locking to the second side of the torsion member.

11. The battery box and fork arrangement of claim 10, wherein:

the substantially smooth side surface of the heel portion of the first fork comprises a machined surface; and

the substantially smooth side surface of the heel portion of the second fork comprises a machined surface.

12. The battery box and fork arrangement of claim 8, wherein:

the top surface of the heel portion of the first fork comprises a boss, and wherein the fifth locking component comprises a plurality of bores disposed in the boss; and

the top surface of the heel portion of the second fork comprises a boss, and wherein the seventh locking component comprises a plurality of bores disposed in the boss.

13. The modular battery box and fork arrangement of claim 12, wherein the top surface of the boss of the first fork comprises a machined surface and the top surface of the boss of the second fork comprises a machined surface.

14. A modular lockable fork for a vehicle, comprising:

a heel end and a toe end, wherein the heel end comprises (i) a first surface configured to be locked to a battery box, the first surface including a first locking component configured to engage a locking component of the battery box when the first surface locks to the battery box, and (ii) a second surface configured to be locked to a torsion member coupled to the battery box, the second surface including a second locking component configured to engage a locking component of the torsion member when the second surface locks to the torsion member.

15. The modular lockable fork of claim 14, wherein the heel end comprises a heel portion, and wherein the heel portion comprises the first surface configured to be locked to a battery box and the second surface configured to be locked to a torsion member.

16. The modular lockable fork of claim 15, wherein a top surface of the heel portion comprises a boss and wherein the first locking component is disposed in the boss.

17. The modular lockable fork of claim 16, wherein a top surface of the boss comprises a machined surface.

18. The modular lockable fork of claim 17, wherein the first locking component comprises a first plurality of threaded blind bores and the second locking component comprises a second plurality of threaded blind bores.

19. The modular lockable fork of claim 18, wherein the second surface of the heel portion comprises a machined surface.

20. The modular lockable fork of claim 19, wherein the first plurality of threaded blind bores are disposed at corners of the boss.