1. Tufting gripper (16) for a tufting machine, said tufting gripper comprising:
a gripper body (19)
an insert (25) that is arranged in a pocket (26) of the gripper body (19),
a spring means (34) that is arranged on the pocket (26) and is associated with the insert (25).
2. Tufting gripper as in claim 1, characterized in that the gripper body (19) has two flat sides (22, 23), and that the pocket (26) is open toward at least one flat side (22, 23).
3. Tufting gripper as in claim 2, characterized in that the pocket (26) is open toward both flat sides (22, 23).
4. Tufting gripper as in claim 2, characterized in that the pocket (26) has an edge (27) that is straight in the transverse direction (Q) extending from the flat side (22) to the flat side (23).
5. Tufting gripper as in claim 1, characterized in that the spring means (34) is arranged on an edge (27) of the pocket (25).
6. Tufting gripper as in claim 1, characterized in that the spring means (34) exerts a clamping force on the insert (25), said spring force holding the insert in a force-fitting manner in the desired position when, or as long as, there is no material-bonding connection between the insert (25) and the gripper body (19).
7. Tufting gripper as in claim 1, characterized in that the spring means (34) is formed by a spring tab (35) whose one end (38) is connected with the gripper body (19) and abuts against the insert (25).
8. Tufting gripper as in claim 7, characterized in that the spring tab (35) consists of the material of the gripper body (19).
9. Tufting gripper as in claim 1, characterized in that the length of the spring tab (35) exceeds three quarters of the length of the side of the insert (25), the spring tab (35) abutting against said side.
10. Tufting gripper as in claim 1, characterized in that the insert (25) is secured in the pocket (26) in a material-bonding manner.
11. Tufting gripper as in claim 1, characterized in that spacing means (42) are provided on the insert (25) or the pocket (26) in order to define the gap width of the resultant joining gap between the insert (25) and the gripper body (19) in a controlled manner.
12. Tufting gripper as in claim 1, characterized in that the spacing means (42) are ribs or knobs (44).
13. Tufting gripper as in claim 1, characterized in that the insert (25) adjoins at least one flat side (22, 23) of the gripper body (19) in a smooth and stepless manner.
14. Tufting gripper as in claim 1, characterized in that the insert (25) adjoins two flat sides (22, 23) of the gripper body (19) in a smooth and stepless manner.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A paste for solar cell electrodes, the paste comprising:
conductive particles, wherein said conductive particles consist essentially of at least one of silver, gold, palladium, platinum, copper, chromium, cobalt, aluminum, tin, lead, iron, iridium, osmium, rhodium, tungsten, molybdenum, nickel, and indium tin oxide;
a lead-free glass frit;
an organic vehicle; and
lead oxide particles, said lead oxide particles being present in an amount of about 0.05 to about 1.5 wt % with respect to a total weight of the paste.
2. The paste for solar cell electrodes as claimed in claim 1, wherein said conductive particles consist essentially of silver.
3. The paste for solar cell electrodes as claimed in claim 1, wherein the conductive particles consist essentially of copper.
4. The paste for solar cell electrodes as claimed in claim 1, wherein said lead-free glass frit is a bismuth-based glass frit.
5. The paste for solar cell electrodes as claimed in claim 1, wherein said lead oxide particles are present in an amount of about 0.1 to about 1 wt % with respect to the total weight of the paste.
6. The paste for solar cell electrodes as claimed in claim 1, wherein said lead oxide particles have an average particle diameter (D50) of about 0.1 to about 25 \u03bcm.
7. The paste for solar cell electrodes as claimed in claim 1, wherein said paste includes:
about 60 to about 90 wt % of the conductive particles,
about 0.5 to about 20 wt % of the lead-free glass fit,
about 1 to about 30 wt % of the organic vehicle, and
about 0.05 to about 1.5 wt % of the lead oxide particles.
8. The paste for solar cell electrodes as claimed in claim 7, further comprising zinc oxide, bismuth oxide, or a mixture thereof, in an amount of about 1 to about 10 wt %.
9. The paste for solar cell electrodes as claimed in claim 1, wherein said organic vehicle includes an organic binder and a solvent.
10. The paste for solar cell electrodes as claimed in claim 9, wherein said organic vehicle includes about 5 to about 40 wt % of the organic binder and about 60 to about 95 wt % of the solvent.
11. A solar cell electrode formed by firing the paste as claimed in claim 1.
12. A solar cell comprising the electrode as claimed in claim 11.