Blade subassemblies for shaving razors
View Patent ↗A subassembly for a shaving razor that includes a plurality of elongated metal blades that are secured to each other as an integral unit. The plural blades have cutting edges defining a shaving surface, and are secured to each other by weld connections at their respective longitudinal ends.
1. A subassembly for a shaving razor comprising:
a first blade having an elongated cutting member with a cutting edge;
a second blade having an elongated cutting member with a cutting edge;
a first elongated support having an upper portion attached to the cutting member of the first blade, a base portion with a first and second bent longitudinal ends having an offset extension, the first and second bent longitudinal ends are transverse to the cutting edge of the first blade,
a second elongated support having an upper portion attached to the cutting member of the second blade, a base portion with a first and second bent longitudinal ends each having an offset extension, the first and second bent longitudinal ends are transverse to the cutting edge of the second blade, wherein the offset extensions of the first and second bent longitudinal ends of the second elongated support overlap respective portions of the first elongated support.
2. The subassembly of claim 1 wherein the first and second elongated supports are secured only at the first and second bent longitudinal ends.
3. The subassembly of claim 1 wherein the offset extensions of the first and second bent longitudinal ends of the second elongated support are secured to the respective portions of the first elongated support by a weld connection.
4. The subassembly of claim 1 wherein the cutting edges are in a common plane.
5. The subassembly of claim 1 wherein the cutting member of the first blade is attached to the upper portion of the first elongated support by a plurality of spot welds.
6. The subassembly of claim 5 wherein the cutting member of the second blade is attached to the upper portion of the second elongated support by a plurality of spot welds.
7. The subassembly of claim 1 further comprising a third blade having an elongated cutting member with a cutting edge; a third elongated support having an upper portion attached to the cutting member of the third blade, a base portion with a first and second bent longitudinal ends having an offset extension, the first and second bent longitudinal ends are transverse to the cutting edge of the third blade, wherein the offset extensions of the first and second bent longitudinal ends of the first elongated support overlap respective portions of the third elongated support.
8. The subassembly of claim 7 wherein the first, second, and third elongated supports are secured only at the first and second bent longitudinal ends.
9. The subassembly of claim 7 wherein the cutting edges are in a common plane.
10. The subassembly of claim 7 wherein the offset extensions of the first and second bent longitudinal end of the second elongated support are secured the respective portions of the first elongated support by a weld connection.
11. The subassembly of claim 10 wherein the first, second, and third elongated supports are secured only at the first and second bent longitudinal ends.
12. The subassembly of claim 11 wherein the cutting edges are in a common plane.
13. The subassembly of claim 7 wherein the cutting member of the first blade is attached to the upper portion of the first elongated support by a plurality of spot welds.
14. The subassembly of claim 13 wherein the cutting member of the second blade is attached to the upper portion of the second elongated support by a plurality of spot welds.
15. The subassembly of claim 14 wherein the cutting member of the third blade is attached to the upper portion of the third elongated support by a plurality of spot welds.
16. The subassembly of claim 15 wherein the first, second, and third elongated supports are secured only at the first and second bent longitudinal ends.
17. The subassembly of claim 7 further comprising a fourth blade having an elongated cutting member with a cutting edge.
18. The subassembly of claim 17 further comprising a fifth blade having an elongated cutting member with a cutting edge.