What is claimed is:
1. A pocket ashtray comprising: a hollow body configured to receive at least one of ash and smoking articles; and a cap substantially coinciding with an end surface of the hollow body, the end surface and the cap each having at least one orifice which is suitable for the passage of said at least one of ash and smoking articles, wherein the cap is fastened to the hollow body so as to be rotatable relative to the hollow body in such a way that, in a first position, the cap closes the orifice of the hollow body and, in a second position, the orifices of the cap and hollow body coincide, and wherein the hollow body has a depression configured for stubbing out said smoking articles in its end surface, the cap being fastened so as to be rotatable relative to the hollow body in such a way that, in a third position, the orifice of the cap coincides with the depression.
2. The pocket ashtray as claimed in claim 1, wherein the hollow body has, on its side opposite the cap, a further orifice which can be closed by a removable lid.
3. The pocket ashtray as claimed in claim 2, wherein said lid is unscrewable.
4. The pocket ashtray as claimed in claim 1, comprising a ring or an eye as a fastening device.
5. The pocket ashtray as claimed in claim 1, wherein a change from the second position to the third position is effected by turning the cap through 180°.
6. The pocket ashtray as claimed in claim 1, wherein a change from the first position to the second position is effected by turning the cap through 90°.
7. The pocket ashtray as claimed in claim 1, wherein at least one O-ring is arranged between the hollow body and cap.
8. The pocket ashtray as claimed in claim 1, wherein the cap is fastened so as to be rotatable relative to the hollow body in such a way that at least one of the positions is defined by a stop device.
9. The pocket ashtray as claimed in claim 8, wherein the stop device is formed by a shape guided in a groove.
10. The pocket ashtray as claimed in claim 1, wherein said hollow body is cylindrical.
11. The pocket ashtray as claimed in claim 1, wherein said hollow body is of one-piece construction.
12. A pocket ashtray comprising: a hollow body having a substantially oval cross-section and configured to receive at least one of ash and smoking articles; and a cap substantially coinciding with an end surface of the hollow body and having a substantially oval cross-section, the end surface having at least one orifice which is suitable for the passage of said at least one of ash and smoking articles, wherein the cap is fastened to the hollow body so as to be rotatable relative to the hollow body via an axle which perpendicularly projects from the end surface in such a way that the cap closes the orifice of the hollow body in a first position and does not cover the orifice of the hollow body in a second position.
13. The pocket ashtray as claimed in claim 12, wherein said hollow body is of one-piece construction.
14. A pocket ashtray comprising: a hollow body having a substantially oval cross-section and configured to receive at least one of ash and smoking articles; and a cap substantially coinciding with an end surface of the hollow body and having a substantially oval cross-section, the end surface having at least one orifice which is suitable for the passage of said at least one of ash and smoking articles, wherein the cap is fastened to the hollow body so as to be rotatable relative to the hollow body in such a way that the cap closes the orifice of the hollow body in a first position and does not cover the orifice of the hollow body in a second position, wherein the hollow body has, in its end surface, a depression configured for stubbing out said smoking articles, the cap being fastened so as to be rotatable relative to the hollow body in such a way that, in a third position, the cap does not cover the depression.
15. The pocket ashtray as claimed in claim 14, wherein the second and third positions are identical.
16. A pocket ashtray comprising: a hollow body having a substantially oval cross-section and configured to receive at least one of ash and smoking articles; and a cap substantially coinciding with an end surface of the hollow body and having a substantially oval cross-section, the end surface having at least one orifice which is suitable for the passage of said at least one of ash and smoking articles, wherein the cap is fastened to the hollow body so as to be rotatable relative to the hollow body in such a way that the cap closes the orifice of the hollow body in a first position and does not cover the orifice of the hollow body in a second position, wherein the cap is fastened so as to be rotatable relative to the hollow body via an axle which projects from the end surface.