Tag housing and assembly method for annular apparatus

• US 20040017321A1
• Filed: 12/16/2002
• Published: 01/29/2004
• Est. Priority Date: 07/24/2002
• Status: Active Grant

• Current Assignee: Goodyear Tire & Rubber Company
• Original Assignee: Goodyear Tire & Rubber Company
• Inventors: Lettieri, Joseph Carmine, Benedict, Robert Leon, Shepler, Peter Ross, Hillenmayer, Franz Josef
• Granted Patent: US 6,809,700 B2
• Time in Patent Office: Days
• US Class Current: 343/741
• CPC Class Codes: B60C 23/0433 Radio signals
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: G06K 19/07764 the adhering arrangement making the record carrier attachable to a tire tire temperature or pressur control arrangements, see B60C23/00
• CPC Class Codes: H01Q 1/2241 used in or for vehicle tyres

Abstract

A housing for a tag assembly comprises an internal chamber defined by sidewalls and a bottom wall; a peripheral flange projecting from the housing; convergent surfaces extending at an upper housing end to an upper surface; and a sensor portal projecting through the housing upper surface in communication with the housing chamber. The housing is positioned within a mold block with the upper housing end resident within a mold block cavity. An upper surface of the peripheral flange and housing sidewall superior to the flange abut sidewall portions of the mold block to isolate the upper housing end with the cavity while carrier strip material is induced into the mold to partially embed the housing therein. An annular apparatus is thus formed comprising an annular carrier strip having a transponder housing at least partially embedded therein in which an upper housing end remains free of the carrier strip.

Claims

1. A tag housing for an annular assembly comprising:

opposed sidewalls and a bottom wall defining an internal chamber therebetween;

a flange projecting outward from the periphery of the housing and having an upper flange surface;

first sidewall portions disposed above the flange surface and intersecting the flange upper surface at a prescribed angle;

upper sidewall convergent portions extending to an upper surface and defining with the upper surface a housing snout; and

a portal extending through the upper surface in communication with the internal chamber.

2. A tag housing as set forth in claim 1, wherein the sidewall first portions intersect the upper flange surface at substantially a right angle.

3. A tag housing as set forth in claim 1, wherein a lower portion of the housing has a bore extending there through in communication with the internal chamber.

4. A tag housing as set forth in claim 1, wherein the housing includes a carrier strip surrounding a lower portion of the housing and the housing snout projecting free of the carrier strip.

5. A tag housing as set forth in claim 4, wherein the housing is embedded within the carrier strip substantially up to the peripheral flange.

6. A tag housing as set forth in claim 5, wherein the housing is elongate in a longitudinal direction.

7. A tag housing as set forth in claim 6, wherein the carrier strip maintains the elongate housing in an upright position.

8. A tag housing as set forth in claim 6, wherein the carrier strip maintains the elongate housing in a flat position.

9. An annular apparatus comprising:

an annular carrier strip;

a tag housing at least partially embedded within the carrier strip and including opposed sidewalls and a bottom wall defining an internal chamber therebetween and a flange projecting outward from the periphery of the housing and having an upper flange service;

the sidewalls having first portions disposed above the flange surface and intersecting the flange upper surface at a prescribed angle and converging portions disposed above the first portions and extending to an upper surface, and

the housing further having a portal extending through the upper surface in communication with the internal chamber.

10. An annular apparatus according to claim 9, wherein the first sidewall portions intersect the upper flange surface at substantially a right angle.

11. An annular apparatus according to claim 9, wherein a lower portion of the housing has a bore extending there through in communication with the internal chamber.

12. An annular apparatus according to claim 9, wherein the tag housing is embedded within the carrier strip substantially to the peripheral flange.

13. An annular apparatus according to claim 9, wherein the tag housing is elongate in a longitudinal direction and the carrier strip maintains the elongate housing in an upright position.

14. An annular apparatus according to claim 13, wherein the tag housing is elongate in a longitudinal direction and the carrier strip maintains the elongate housing in a flat position.

15. An annular apparatus according to claim 9, wherein the sidewall converging portions and the portal project free from the carrier strip.

16. An annular apparatus according to claim 9, wherein further including an annular antenna at least partially embedded within the carrier strip.

17. An annular apparatus according to claim 9, wherein further comprising:

a toroidal transformer in electromagnetic coupled relationship with the antenna and residing within the housing chamber.

18. A method of manufacturing an annular apparatus comprising an annular antenna coupled to a transponder through a toroidal transformer having a toroidal opening, the method comprising the steps of:

positioning the transformer and transponder within a tag housing, the tag housing having a chamber defined by opposed sidewalls and a bottom wall, the tag housing further having a flange projecting outward from the periphery of the housing, upper convergent sidewall portions extending to an upper surface, and a sensor port extending through the upper surface in communication with the housing chamber;

positioning the annular antenna and the tag housing within a mold with the housing convergent surfaces located within a mold cavity defined by cavity sidewalls;

positioning an upper surface of the peripheral flange and housing sidewall portions superior to the flange in close abutting relationship with portions of the cavity sidewalls; and

injecting carrier strip material into the mold to at least partially encapsulate the antenna and a lower portion of the tag housing.

19. A method according to claim 18, wherein comprising the further step of terminating the induction of carrier strip material into the mold at a level where the carrier strip material reaches the housing flange to allow the convergent housing surfaces to remain free of the carrier strip.

20. A method according to claim 18, further comprising:

optionally aligning the tag housing into either a flat or an on-end orientation relative to the carrier strip.