Systems and methods for forming non-pneumatic tires

Patent metadata

Field	Value
Publication number	US-9162407-B2
Application number	US-201213606908-A
Country	US
Kind code	B2
Filing date	Sep 7, 2012
Priority date	Sep 7, 2012
Publication date	Oct 20, 2015
Grant date	Oct 20, 2015

Abstract

A reservoir for catching a portion of overflow of molding material from a non-pneumatic tire mold during molding includes a tubular portion having a proximal end and a distal end, and a flange associated with the proximal end of the tubular portion. The flange is configured to be associated with a surface of the tire mold, such that the tubular portion extends substantially perpendicular to the surface of the tire mold. The reservoir further includes a reservoir portion configured to be removably mounted around the tubular portion. The reservoir portion includes a base having an aperture configured to receive the tubular portion, and a wall configured such that molding material flowing from the distal end of the tubular portion is received in the reservoir portion.

First claim

What is claimed is:

1. A reservoir for catching a portion of overflow of molding material from a non-pneumatic tire mold during molding, the reservoir comprising:
a tubular portion having a proximal end and a distal end;
a flange associated with the proximal end of the tubular portion, the flange being configured to be associated with a surface of the tire mold, such that the tubular portion extends substantially perpendicular to the surface of the tire mold; and
a reservoir portion configured to be removably mounted around the tubular portion, the reservoir portion including a base having an aperture configured to receive the tubular portion, and a wall configured such that molding material flowing from the distal end of the tubular portion is received in the reservoir portion.

2. The reservoir of claim 1 , wherein the flange is configured to be coupled to the surface of the mold.

3. The reservoir of claim 1 , further including a seal member associated with the proximal end of the tubular portion and the flange, and configured to provide a fluid seal between the reservoir and the surface of the mold.

4. The reservoir of claim 1 , wherein the reservoir portion is configured to slide along the tubular portion from the distal end toward the flange.

5. The reservoir of claim 4 , further including a seal member associated with the aperture of the base of the reservoir portion and configured to provide a fluid seal between the reservoir portion and the tubular portion.

6. The reservoir of claim 1 , wherein the distal end of the tubular portion includes threading configured to threadedly engage threads of a fluid coupling.

7. The reservoir of claim 1 , wherein the tubular portion has a substantially circular cross-section, and the aperture of the base of the reservoir portion is substantially circular.

8. The reservoir of claim 1 , wherein the tubular portion and the reservoir portion are configured such that following receipt of an overflow of molding material, the reservoir portion is configured to slide along the tubular portion toward the distal end and separate from the tubular portion, thereby facilitating removal of the overflow from the tire mold.

9. A system for molding a non-pneumatic tire, the system comprising:
a tire mold including:
a lower mold portion configured to provide a lower relief corresponding to a first side of the tire; and
an upper mold portion configured to be coupled to the lower mold portion, the upper mold portion being configured to provide an upper relief corresponding to a second side of the tire; and

a reservoir for catching a portion of overflow of molding material from the tire mold during molding, the reservoir including:
a tubular portion having a proximal end and a distal end;
a flange associated with the proximal end of the tubular portion, the flange being configured to be associated with the upper mold portion of the tire mold, such that the tubular portion extends substantially perpendicular to the upper mold portion; and

a reservoir portion configured to be removably mounted around the tubular portion, the reservoir portion including a base having an aperture configured to receive the tubular portion, and a wall configured such that molding material flowing from the distal end of the tubular portion is received in the reservoir portion.

10. The system of claim 9 , wherein the upper mold portion of the tire mold includes at least one aperture, and wherein the tubular portion of the reservoir is coupled to the upper mold portion, such that flow communication is provided between an interior of the tire mold and the reservoir portion.

11. The system of claim 9 , further including a seal member associated with the proximal end of the tubular portion and the flange, and configured to provide a fluid seal between the reservoir and the upper mold portion of the tire mold.

12. The system of claim 9 , wherein the reservoir portion is configured to slide down the tubular portion from the distal end toward the flange.

13. The system of claim 12 , further including a seal member associated with the aperture of the base of the reservoir portion and configured to provide a fluid seal between the reservoir portion and the tubular portion.

14. The system of claim 9 , wherein the distal end of the tubular portion includes threading configured to threadedly engage threads of a fluid coupling.

15. The system of claim 9 , wherein the tubular portion has a substantially circular cross-section, and the aperture of the base of the reservoir portion is substantially circular.

16. The system of claim 9 , wherein the tubular portion and the reservoir portion are configured such that following receipt of an overflow of molding material, the reservoir portion is configured to slide up the tubular portion, thereby facilitating removal of the overflow from the tire mold.

Assignees

• Martin Kevin L
• Colantoni David J
• Pierz Stephen J
• Caterpillar Inc

Inventors

• Martin Kevin L
• Colantoni David J
• Pierz Stephen J

Classifications

• B29D2030/0617

  Venting devices, e.g. vent plugs or inserts · CPC title

• B29D30/02 Primary

  Solid tyres {; Moulds therefor} · CPC title

• B29D99/0089

  Producing honeycomb structures (consisting of porous ceramic ware C04B38/0006) · CPC title

• B29C45/2669

  with means for removing excess material, e.g. with overflow cavities (B29C45/1711 takes precedence) · CPC title

• B29C33/0055

  with incorporated overflow cavities (in particular in injection moulds B29C45/2669) · CPC title