1. A cleaning tool, having a cleaning sheet and a holder for holding the cleaning sheet, wherein:
the cleaning sheet is configured to extend in a longitudinal direction which is defined by a direction of insertion of the holder into the cleaning sheet, and in a transverse direction which is defined by a direction crossing the longitudinal direction,
the holder has a holding part for holding the cleaning sheet, and a grip part which is connected to the holding part and designed to be held by a user,
the cleaning sheet has ends in the longitudinal direction, ends in the transverse direction, a brush part capable of cleaning an object to be cleaned, a base connected with the brush part, and an insertion part which is formed on the base and into which the holding part is inserted,
the brush part comprises a fiber assembly of fibers having the same length and having orientation in a prescribed direction and includes a first brush region and a second brush region, and
the second brush region is configured to be longer than the first brush region and has a protruding region.
2. The cleaning tool as defined in claim 1, comprising:
a longitudinal center line which is a line passing in the longitudinal direction through a center in the transverse direction,
a first brush region length which is the longest distance in the transverse direction between an end of the first brush region in the transverse direction and the longitudinal center line, and
a second brush region length which is the longest distance in the transverse direction between an end of the second brush region in the transverse direction and the longitudinal center line, wherein:
the second brush region length is longer than the first brush region length.
3. The cleaning tool as defined in claim 1, wherein the second brush region is formed in a direction crossing a direction of orientation of the fiber assembly, and has a brush region bonded part which bonds a prescribed region of the fiber assembly.
4. The cleaning tool as defined in claim 1, wherein the fibers of the fiber assembly which form the protruding region have orientation in the transverse direction.
5. The cleaning tool as defined in claim 1, wherein the first brush region is provided on the ends in the longitudinal direction.
6. The cleaning tool as defined in claim 1, wherein the second brush region is provided on the ends in the longitudinal direction.
7. The cleaning tool as defined in claim 1, wherein the first brush region is provided on the ends in the transverse direction.
8. The cleaning tool as defined in claim 1, wherein the second brush region is provided on the ends in the transverse direction.
9. The cleaning tool as defined in claim 1, wherein the first brush regions and the second brush regions are alternately arranged.
10. The cleaning tool as defined in claim 1, wherein the base comprises a first sheet element.
11. The cleaning tool as defined in claim 10, comprising a second sheet element which is superposed on the first sheet element, wherein the insertion part is formed between the first sheet element and the second sheet element.
12. The cleaning tool as defined in claim 10, wherein the insertion part is formed by forming a bonding sheet region by contact of prescribed surfaces of the first sheet element with each other and bonding the prescribed surfaces in the bonding sheet region.
13. The cleaning tool as defined in claim 10, comprising a third sheet element which is superposed on the first sheet element, and a fourth sheet element which is superposed on the third sheet element, wherein the insertion part is formed between the third sheet element and the fourth sheet element.
14. The cleaning tool as defined in claim 10, comprising a fifth sheet element which is superposed on the first sheet element, wherein the insertion part is formed by forming a bonding sheet region by contact of prescribed surfaces of the fifth sheet element with each other and bonding the prescribed surfaces in the bonding sheet region.
15. The cleaning tool as defined in claim 1, wherein the brush part is provided on one side of the base.
16. The cleaning tool as defined in claim 1, wherein the brush part is provided on one side and the other side of the base.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-8. (canceled)
9. A negative electrode plate for a nickel-metal hydride storage battery, comprising a conductive support and an active material layer formed on both sides of the support, wherein
the active material layer contains a hydrogen-absorbing alloy powder as a main component,
a plurality of recesses is formed on a surface of the active material layer and
a conductive layer containing a conductive powder as a main component is provided so as to cover the surface of the active material layer and to fill in the recesses.
10. The negative electrode plate for a nickel-metal hydride storage battery according to claim 9, wherein the conductive powder is a powder essentially made of a carbonaceous material.
11. The negative electrode plate for a nickel-metal hydride storage battery according to claim 9, wherein the conductive powder is a mixed powder of a powder essentially made of a carbonaceous material and a metal powder.
12. The negative electrode plate for a nickel-metal hydride storage battery according to claim 9, wherein the recesses are V-grooves.
13. The negative electrode plate for a nickel-metal hydride storage battery according to claim 12, wherein the grooves on one side and the grooves on the other side are arranged so as not to be directly opposite to each other.
14. The negative electrode plate for a nickel-metal hydride storage battery according to claim 9, wherein the recesses are cone-shaped holes.
15. The negative electrode plate for a nickel-metal hydride storage battery according to claim 14, wherein the holes on one side and the holes on the other side are arranged so as not to be directly opposite to each other.
16. The negative electrode plate for a nickel-metal hydride storage battery according to claim 9, wherein an amount of the conductive powder is 0.0001 g or more and 0.002 g or less per cm2 of the negative electrode plate.
17. The negative electrode plate for a nickel-metal hydride storage battery according to claim 9, wherein particle sizes of the conductive powder are in the range of 0.05 \u03bcm to 7.0 \u03bcm.
18. (canceled)
19. A nickel-metal hydride storage battery comprising a negative electrode plate containing a hydrogen-absorbing alloy, wherein
the negative electrode plate is the negative electrode plate according to claim 9.
20-23. (canceled)
24. A method for producing a negative electrode plate for a nickel-metal hydride storage battery, comprising:
(I) applying a first slurry containing a hydrogen-absorbing alloy powder and a first powder essentially made of a carbonaceous material to both sides of a conductive support, followed by drying to form an active material layer on both sides of the support;
(II) forming a plurality of recesses on a surface of the active material layer; and
(III) applying a second slurry containing a second powder having conductivity to the active material layer.
25. The method for producing a negative electrode plate for a nickel-metal hydride storage battery according to claim 24, wherein the second powder is a powder essentially made of a carbonaceous material.
26. The method for producing a negative electrode plate for a nickel-metal hydride storage battery according to claim 24, wherein the second powder is a mixed powder of a powder essentially made of a carbonaceous material and a metal powder.
27. The method for producing a negative electrode plate for a nickel-metal hydride storage battery according to claim 24, wherein particle sizes of particles constituting the first powder are in the range of 1 \u03bcm to 20 \u03bcm and particle sizes of particles constituting the second powder are in the range of 0.05 \u03bcm to 7.0 \u03bcm.
28. The method for producing a negative electrode plate for a nickel-metal hydride storage battery according to claim 24, wherein the recesses are V-grooves.