Intra-mould substrate
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, a substrate and a textile casing. The substrate and textile casing have retaining structures to attach the textile casings to the substrates and the substrates to each other.
1. A junction portion in a headgear assembly at which two or more straps of the headgear assembly connect, the junction portion comprising:
a first substrate;
a second substrate attached to the first substrate;
a first textile casing attached to the first substrate;
a second textile casing attached to the second substrate; and
a plastic core that is surrounded by the first and second textile casings and is bonded to the first and second substrates and the first and second textile casings,
wherein each of the first and second substrates include a first retaining structure,
wherein each of the first and second textile casings include a second retaining structure, and
wherein the first and second retaining structures are configured to engage each other to attach the first textile casing onto the first substrate and the second textile casing onto the second substrate.
2. The junction portion of claim 1 , wherein the first textile casing covers an inwardly-facing surface of the headgear assembly and the second textile casing covers an outwardly-facing surface of the headgear assembly.
3. The junction portion of claim 1 , wherein ends of the first and second textile casing are positioned between the first and second substrates.
4. The junction portion of claim 1 , wherein the first retaining structure of the first substrate engages the first retaining structure of the second substrate to connect the first and second substrates.
5. The junction portion of claim 1 , wherein the first retaining structure includes a post protruding outward from a surface of at least one of the first and second substrates, and a socket positioned on at least an other of the first and second substrates, the socket having an inner hole, wherein the post is positioned within the inner hole to connect the first and second substrates.
6. The junction portion of claim 5 , wherein the socket protrudes outward from a surface of the other of the first and second substrates.
7. The junction portion of claim 5 , wherein the second retaining structure includes at least one hole extending through each of the first and second textile casings, wherein at least one of the post and the socket engages the hole to attach the first textile casing on the first substrate and the second textile casing on the second substrate.
8. The junction portion of claim 1 , wherein the second retaining structure is positioned on portions of the first and second textile casing that are positioned between the first and second substrates.
9. The junction portion of claim 1 , further comprising:
a strap connector preformed in at least one of the first and second substrates.
10. The junction portion of claim 1 , further comprising:
a length adjustment mechanism preformed in at least one of the first and second substrates.
11. The junction portion of claim 1 , further comprising:
an angular adjustment mechanism preformed in at least one of the first and second substrates.
12. The junction portion of claim 1 , wherein at least one of the first and second substrates includes a gate.
13. The junction portion of claim 1 , wherein the first and second substrates are identical.
14. The junction portion of claim 1 , wherein the plastic core comprises an injection moulded plastic material that is injected between the first and second textile casings.