Ball hitch tip out plug, triangle leg tip out plug, combination, and tip out plug tool

Patent metadata

Field	Value
Publication number	US-11220078-B2
Application number	US-201816608659-A
Country	US
Kind code	B2
Filing date	Apr 26, 2018
Priority date	Apr 26, 2017
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

A combination of first and second plugs for a tire mold includes associated first and second receivers/jackets. Fasteners secure the receiver to an associated tire mold. A securing member extends from the receiver into the cavity of the first receiver to retain the first plug therein. The first plug is contoured and dimensioned for mating receipt in the first receiver cavity. The second plug is likewise contoured and dimensioned for mating receipt in the associated second receiver cavity, but will not be accepted in the first receiver. A tool is provided to facilitate insertion and removal of the first and second plugs, and limit the potential for damage to the associated tire mold.

First claim

What is claimed is:

1. A plug assembly for a tire mold, the plug assembly comprising:
a receiver or jacket having a first face with a cavity extending inwardly therefrom to a first surface;
a fastener for securing the receiver to an associated tire mold;
a securing member extending from the receiver into the cavity, the securing member including a spherical portion at a distal end of a stem that is connected to the receiver first surface; and
a plug contoured and dimensioned for mating receipt in the receiver cavity and retained therein by engagement with the securing member.

2. The plug assembly of claim 1 wherein the first surface of the jacket/receiver includes a first opening extending therethrough dimensioned to receive the fastener.

3. The plug assembly of claim 2 wherein the plug includes a recess extending inwardly from a perimeter edge of the plug and dimensioned to receive the securing member therein.

4. The plug assembly of claim 3 wherein the securing member is secured to and extends perpendicularly outward from the first surface of the receiver, and the recess extends in a direction substantially perpendicular to the securing member.

5. The plug assembly of claim 4 further comprising an angled surface on a rear face of the plug that faces the first surface of the receiver.

6. The plug assembly of claim 5 wherein the angled surface extends inwardly from a first end of the plug, and the plug includes another angled surface extending inwardly from a second end of the plug.

7. The plug assembly of claim 1 wherein the spherical portion has a greater cross-sectional dimension than a cross-sectional dimension of the stem.

8. The plug assembly of claim 7 wherein the plug includes a recess extending inwardly from a perimeter edge of the plug and dimensioned to receive the stem therein and the spherical portion of the securing member has a greater cross-sectional dimension than undercut shoulders that define the recess and prevent inadvertent removal of the plug from the receiver.

9. The plug assembly of claim 1 wherein the plug includes first and second angled surfaces that extend inwardly from opposite, first and second ends, respectively, of the plug toward a central planar portion.

10. The plug assembly of claim 1 wherein the cavity has a D-shaped perimeter, and the plug has a similarly contoured, D-shaped perimeter.

11. A plug assembly for a tire mold, the plug assembly comprising:
a receiver having a first surface with a cavity extending inwardly therefrom, the first surface including a slot;
a fastener for securing the receiver to an associated tire mold; and
a plug contoured and dimensioned for mating receipt in the receiver cavity, the plug including a protrusion extending from a first surface thereof and dimensioned for receipt in the receiver slot.

12. The plug assembly of claim 11 further comprising a wall extending above the first surface of the receiver adjacent the slot serving as a fulcrum point for tipping the plug relative to the receiver when received therein.

13. The plug assembly of claim 12 wherein the wall extends perpendicular to the slot.

14. The plug assembly of claim 11 wherein the protrusion has a triangular shape.

15. The plug assembly of claim 11 wherein an outer perimeter of the plug and an inner perimeter of the cavity are dimensioned for a friction fit that retains the plug in the receiver.

16. The plug assembly of claim 11 wherein the slot is formed along an edge of the receiver, and the protrusion is formed along an edge of the plug whereby the plug is capable of receipt in the receiver in only a single orientation when the protrusion faces the receiver first surface.

17. The plug assembly of claim 11 wherein the cavity has a D-shaped perimeter, and the plug has a similarly contoured, D-shaped perimeter.

18. A combination of plug assemblies for a tire mold, the combination comprising:
a first receiver having a first face with a cavity extending inwardly therefrom to a cavity first surface;
a first fastener for securing the first receiver to an associated tire mold;
a first securing member extending from the receiver into the cavity;
a first plug contoured and dimensioned for mating receipt in the first receiver cavity and retained therein by engagement with the first securing member;
a second receiver having a first surface with a cavity extending inwardly therefrom, the first surface including a slot;
a second fastener for securing the second receiver to the associated tire mold; and
a second plug contoured and dimensioned for mating receipt in the second receiver cavity, the second plug including a protrusion extending from a first surface thereof and dimensioned for receipt in the second receiver slot.

19. The combination of claim 18 wherein at least one of the first plug and the first receiver has a conformation that precludes mating engagement with the second receiver and the second plug, respectively.

20. The combination of claim 18 further comprising a plug removal tool having an enlarged, first end to facilitate gripping by an associated user, and a second end that includes a pointed tip for engaging the plug mounted to the associated tire mold.

21. The combination of claim 20 wherein the pointed tip is urged outwardly from the tool by a biasing member.

22. The combination of claim 21 further comprising a polymer material surrounding the pointed tip that minimizes potential damage to the associated tire mold.

Assignees

• Cooper Tire & Rubber Co

Inventors

• Reigle Steve
• Ackerman Chris
• Badertscher Brett
• Barron Curtis
• Utrup Kurt

Classifications

• B29C33/306

  Exchangeable mould parts, e.g. cassette moulds, mould inserts (moulds with exchangeable mould parts for injection moulding B29C45/2673; mounting of exchangeable mould inserts for injection moulding B29C45/2675) · CPC title

• B29D30/0606 Primary

  Vulcanising moulds not integral with vulcanising presses (for solid tyres B29D30/02) · CPC title

• B29D30/72 Primary

  Side-walls · CPC title

• B29D30/0662

  Accessories, details or auxiliary operations · CPC title

• B29D2030/726

  Decorating or marking the sidewalls before tyre vulcanization · CPC title