Intramold headgear
A headgear portion or assembly for use in combination with a breathing apparatus in some configurations is at least substantially inelastic and is three dimensional in shape. The headgear portion or assembly can comprise a plastic core and a textile casing. The headgear, or part thereof, may also have integrally moulded labels, connectors, adjustment mechanisms and/or grips.
1. A headgear, comprising:
a top strap;
a rear strap;
a front strap;
a yoke; and
a connector configured to provide a detachable connection to a mask frame of a breathing apparatus,
wherein at least one of the top strap, the rear strap and the front strap is configured to be substantially inelastic and three dimensional in structure,
wherein the at least one of the top strap, the rear strap and the front strap is constructed from a composite material in which a textile casing is integrally formed on a plastic core, and
wherein the at least one of the top strap, the rear strap and the front strap comprises at least one flexible joint, the at least one flexible joint configured to permit bending and/or folding about the at least one flexible joint and along a length of the at least one of the top strap, the rear strap and the front strap,
wherein the at least one flexible joint comprises a gap between portions of the plastic core and wherein the textile casing extends within the gap to connect the portions of the plastic core,
wherein at least one bridge portion extending within the at least one flexible joint between the portions of the plastic core, and
wherein the at least one bridge portion is unitarily formed with the portions of the plastic core.
2. The headgear of claim 1 , wherein the headgear comprises integrally moulded labels, connections, and/or adjustment features.
3. The headgear of claim 1 , wherein a portion of the headgear comprises a grip that is moulded to a textile surface of the headgear.
4. The headgear of claim 1 , wherein the textile casing comprises a first portion that covers an inwardly-facing surface of the headgear.
5. The headgear of claim 4 , wherein the textile casing comprises a second portion that covers an outwardly-facing surface of the headgear.
6. The headgear of claim 5 , wherein the first portion and the second portion of the textile casing meet at first and second edges.
7. The headgear of claim 6 , wherein the first portion and the second portion are not connected to one another at the first and second edges.
8. The headgear of claim 1 , wherein the textile casing comprises one or more retainer holes configured to engage a retaining pin of a moulding tool.
9. A headgear, comprising:
a top strap;
a rear strap;
a front strap;
a yoke;
a connector configured to provide a detachable connection to a mask frame of a breathing apparatus; and
at least one flexible joint that permits at least one of the top strap, the rear strap and the front strap to bend and/or fold,
wherein the at least one of the top strap, the rear strap and the front strap is configured to be substantially inelastic and three dimensional in structure,
wherein the at least one of the top strap, the rear strap and the front strap is constructed from a composite material in which a textile casing is integrally formed on a plastic core,
wherein the at least one flexible joint comprises a gap between portions of the plastic core and wherein the textile casing extends within the gap to connect the portions of the plastic core,
wherein at least one bridge portion extends within the at least one flexible joint between the portions of the plastic core, and
wherein the at least one bridge portion is unitarily formed with the portions of the plastic core.
10. The headgear of claim 9 , wherein the headgear comprises integrally moulded labels, connections, and/or adjustment features.
11. The headgear of claim 9 , wherein a portion of the headgear comprises a grip that is moulded to a textile surface of the headgear.
12. The headgear of claim 11 , wherein the textile casing comprises a first portion that covers an inwardly-facing surface of the headgear.
13. The headgear of claim 12 , wherein the textile casing comprises a second portion that covers an outwardly-facing surface of the headgear.
14. The headgear of claim 13 , wherein the first portion and the second portion of the textile casing meet at first and second edges.
15. The headgear of claim 14 , wherein the first portion and the second portion are not connected to one another at the first and second edges.
16. The headgear of claim 9 , wherein the textile casing comprises one or more retainer holes configured to engage a retaining pin of a moulding tool.