Brush comprising a carrier made of bamboo material and wire for forming staples for a brush of this type
A brush including a support made of bamboo material having a plurality of cluster holes each accommodating one bristle cluster fixed in a cluster hole by a clip having a length l greater than the diameter D of the cluster hole to form clip projections on both longitudinal ends. The clips have at least two wedges on at least one side disposed one above the other in the direction of the vertical axis and widening upward, the upper ends of the wedges forming catch shoulders extending in the longitudinal direction of the clip, wherein a press-in end of the clip having a reduced width is formed at a lower end of the lower wedge.
1. A brush comprising a support made of bamboo material for disposing bristle clusters thereon, the support having a plurality of cluster holes each serving to accommodate one bristle cluster, the bristle clusters each being fixed in a cluster hole by means of a clip, the clips having a length l greater than the diameter D of the cluster hole so as to form clip projections formed on both longitudinal ends, and the clips having at least two wedges on at least one of two opposite longitudinal sides at least in the area of the clip projections, the wedges being disposed one above the other in the direction of the vertical axis and widening upward, the upper ends of the wedges forming catch shoulders extending in the longitudinal direction of the clip,
wherein
a press-in end of the clip is formed at a lower end of the lower wedge, a width b 1 of the press-in end being reduced compared to a width b of the clip.
2. The brush according to claim 1 , wherein the press-in end is formed by the lower end of the lower wedge.
3. The brush according to claim 1 , wherein the press-in end is formed as an extension formed at the lower end of the lower wedge.
4. The brush according to claim 3 , wherein the width of the press-in end is 0.5 times to 1.5 times the width of a catch shoulder.
5. The brush according to claim 1 , wherein the height h 2 of the wedges is 4 to 8 times the width b 1 of the press-in end.
6. The brush according to claim 1 , wherein for forming catch grooves, adjacent wedges are spaced apart from each other by spacers which form a groove bottom in such a manner that a wedge surface of the upper wedge rising from the groove bottom forms a groove flank and the catch shoulder of the lower wedge forms an opposite groove flank.
7. The brush according to claim 6 , wherein the groove bottom has a width between 0.05 and 0.6 mm.
8. The brush according to claim 6 , wherein the groove bottom has a width between 0.2 and 0.4 mm.
9. The brush according to claim 6 , wherein the catch grooves have a groove bottom which is parallel to the vertical axis.
10. The brush according to claim 6 , wherein a transition formed between the wedge surface and the catch shoulder is formed as a convex transition edge.
11. The brush according to claim 1 , wherein the upper one of two wedges disposed one above the other has a catch shoulder having a greater width than the catch shoulder formed by the lower wedge.
12. The brush according to claim 11 , wherein the catch shoulder of the respective upper wedge has a width which is greater than the catch shoulder of the respective lower wedge by between 5 and 15%.
13. The brush according to claim 1 , wherein the clip is symmetrical to the vertical axis, which means that the wedges formed on opposite longitudinal sides form a symmetrical double wedge profile.
14. The brush according to claim 1 , wherein the brush is a toothbrush.
15. A wire for forming clips for a brush according to claim 1 , wherein the wire has wedges on at least one of two opposite longitudinal sides, the wedges being disposed one above the other in the direction of the vertical axis and widening upward, the upper ends of the wedges forming catch shoulders extending in the longitudinal direction of the wire, and a lower wire edge being formed at a lower end of the lower wedge, the lower wire edge having a reduced width b 1 compared to wire width b.
16. The wire according to claim 15 , wherein the lower wire edge is formed by the lower end of the lower wedge.
17. The wire according to claim 15 , wherein the lower wire edge is formed as an extension formed at the lower end of the lower wedge.
18. The wire according to claim 15 , wherein the width b 1 of the wire edge is 0.5 times to 1.5 times the width of a catch shoulder.
19. The wire according to claim 15 , wherein the height h 1 of the wedges is 4 to 8 times the width b 1 of the lower wire edge.
20. The wire according to claim 15 , wherein for forming catch grooves, the adjacent wedges are spaced apart from each other by spacers which form a groove bottom in such a manner that a wedge surface of the upper wedge rising from the groove bottom forms a groove flank and the catch shoulder of the lower wedge forms an opposite groove flank.
21. The wire according to claim 20 , wherein the groove bottom has a width between 0.05 and 0.6 mm.
22. The wire according to claim 20 , wherein the groove bottom has a width between 0.2 and 0.4 mm.
23. The wire according to claim 20 , wherein the catch grooves have a groove bottom which is parallel to the vertical axis of the wire.
24. The wire according to claim 15 , wherein a transition formed between a wedge surface and a catch shoulder is formed as a convex transition edge.
25. The wire according to claim 15 , wherein the upper one of two wedges disposed one above the other has a catch shoulder having a greater width than the catch shoulder formed by the lower wedge.
26. The wire according to claim 15 , wherein the wire is symmetrical to a vertical axis, which means that the wedges formed on the opposite longitudinal sides form a symmetrical double wedge profile.
27. The wire according to claim 15 , wherein the wire has a brass, nickel silver or aluminum alloy.