What is claimed is:
1. A thermosensitive lithographic printing plate comprising:
a hydrophilic support;
a lower layer comprising a water-insoluble and alkali-soluble resin; and
an upper thermosensitive layer comprising a water-insoluble and alkali-soluble resin and an infrared absorbing dye, whose dissolution in an alkaline aqueous solution increases upon exposure,
wherein a surface of the upper thermosensitive layer has protrusions caused by ununiformity of thickness of the upper thermosensitive layer in a proportion of 0.1 or more and not more than 7 per m2.
2. The thermosensitive lithographic printing plate according to claim 1, wherein the upper thermosensitive layer comprises a granular substance as measures for forming protrusions caused by ununiformity of thickness of the upper thermosensitive layer on the surface of the upper thermosensitive layer.
3. The thermosensitive lithographic printing plate according to claim 1, wherein the upper thermosensitive layer comprises an alkali-soluble resin same as the alkali-soluble resin contained in the lower layer.
4. The thermosensitive lithographic printing plate according to claim 1, wherein both of the resins in the lower layer and the upper thermosensitive layer comprise a functional group selected from the group consisting of a phenolic hydroxyl group, a sulfonamide group and an active imido group.
5. The thermosensitive lithographic printing plate according to claim 1, wherein the proportion is 0.2 or more and not more than 3 per m2.
6. A thermosensitive lithographic printing plate comprising:
a hydrophilic support;
a lower layer comprising a water-insoluble and alkali-soluble resin; and
an upper thermosensitive layer comprising a water-insoluble and alkali-soluble resin and an infrared absorbing dye, whose dissolution in an alkaline aqueous solution increases upon exposure,
wherein the upper thermosensitive layer comprises at least two alkali-soluble resins having a different dissolution speed in an alkaline aqueous solution from each other, and the at least two alkali-soluble resin cause phase separation from each other.
7. The thermosensitive lithographic printing plate according to claim 6, wherein the upper thermosensitive layer comprises an alkali-soluble resin same as the alkali-soluble resin contained in the lower layer.
8. The thermosensitive lithographic printing plate according to claim 6, wherein both of the resins in the lower layer and the upper thermosensitive layer comprise a functional group selected from the group consisting of a phenolic hydroxyl group, a sulfonamide group and an active imido group.
9. The thermosensitive lithographic printing plate according to claim 6, wherein the at least two alkali-soluble resins comprises a resin having a phenolic hydroxyl group and a resin having a sulfonamide group or an active imido group.
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 clutch release device for a motor vehicle, the clutch release device comprising; a release flange (11) affixed to a housing (2) and an axially slidable release bearing (9) guided on said release flange (11), between which a bushing (10) is placed, in one or more of a surface of the bushing (10) which faces radially inward and in the surface of the release flange (11), which faces radially outward, grooves (21, 22) are placed, which said grooves (21, 22) are so located, that the grooves (21, 22) are radially aligned with a line of action of a tilting force FV acting on the release bearing (9) and the release flange (11).
2. The clutch release device according to claim 1, wherein at least two grooves (21, 22) are placed on the bushing (10) and on the release flange (11).
3. The clutch release device according to claim 2, wherein at least two grooves (21, 22) are so placed on one of a circumference of the bushing (10) and of the release flange (11) that the grooves (21, 22) lie diametrically opposite to one another.
4. The clutch release device according to claim 1, wherein a ratio of a groove width (B) to a groove depth (T) as well as a number of the grooves (21, 22) are so selected, that even in a case of maximum application of the tilting force (FV) in a zone of the grooves (21, 22) no contact between the release bearing (9) or the bushing (10) and the release flange (11) can occur.
5. The clutch release device according to claim 1, wherein a ratio of a groove width (B) to a depth (T) thereof, as well as a number of the grooves (21, 22) are so selected, that upon application of the tilting force (FV) the release bearing (9), with a longitudinal axis, has a slightly inclined alignment toward a longitudinal axis (X) of the release flange (11).
6. The clutch release device according to claim 1, wherein the bushing (10) is impressed into one of the release bearing (9) or the release flange (11).
7. The clutch release device according to claim 1, wherein the bushing (10) comprises a coating on one of an inner Surface of the release bearing (9) and an outside of the release flange (11).
8. The clutch release device according to claim 1, wherein the bushing (10) and the release flange (11) possess, respectively, carrier sections (26) which are directed radially inward and outward.
9. The clutch release device according to claim 1 wherein the separate grooves (21, 22) are defined as specifically designed and placed intervening spaces (31) between carrier sections (26) of the bushing (10).
10. The clutch release device according to claim 1, wherein the release bearing (9) is a component of a central release device.
11. A clutch release device for a motor vehicle, the clutch release device comprising;
a release flange (11) defined about a longitudinal axis, the release flange affixed to a housing (2) and supporting an axially slidable release bearing (9);
a bushing (10) positioned between the release flange (11) and the axially slidable release bearing (9);
a first groove and a second groove formed in one of an outer surface of the release flange and an inner surface of the axially slidable release bearing (9);
a release lever generating a radial force FV on the release bearing (9) in a direction perpendicular to said longitudinal axis; and
wherein said first and second groove are radially aligned with the radial force on the release bearing (9) generated by the release lever.
12. The clutch release device for a motor vehicle as set forth in claim 11 wherein said first groove and said second groove are diametrically opposed about one of the outer surface of the release flange and the inner surface of the axially slidable release bearing (9).
13. The clutch release device for motor vehicle as set forth in claim 11 wherein a groove width (B) and a groove depth (T) are so selected, that even in a case of maximum application of the force FV aligned with the first and second grooves (21, 22) substantially no contact between the release bearing (9) or the bushing (10) and the release flange (11) occurs.