CLEANING SHEET

• US 20110154598A1
• Filed: 09/07/2009
• Published: 06/30/2011
• Est. Priority Date: 09/09/2008
• Status: Active Grant

• Current Assignee: Kikuo Yamada
• Original Assignee: Kikuo Yamada
• Inventors: Yamada, Kikuo
• Granted Patent: US 8,661,600 B2
• Time in Patent Office: Days
• US Class Current: 15/209.1
• CPC Class Codes: A47L 13/16 Cloths; Pads; Sponges metal scraping sponges A47L13/07
• CPC Class Codes: Y10T 428/24314 Slit or elongated

Abstract

The invention provides a cleaning sheet that is excellent in capturing dust and dirt. The cleaning sheet according to the invention includes a base material sheet (2) and a cleaning surface forming sheet (3) that is bonded to the base material sheet (2). A slacked section (5) is formed in the cleaning surface forming sheet (2) between the bonding sections (6, 6) where the base material sheet (2) and the cleaning surface forming sheet (3) are bonded to each other, and a plurality of cuts (7) for capturing dust and dirt are formed at the slacked section (5).

Claims

1. A cleaning sheet comprising:

a base material sheet; and

a cleaning surface forming sheet that is bonded to the base material sheet,

wherein the cleaning surface forming sheet has a slacked section formed between bonding sections where the base material sheet and the cleaning surface forming sheet are bonded to each other, and

a plurality of cut portions for capturing dust and dirt are formed at the slacked section.

2. The cleaning sheet according to claim 1,

wherein a distance L1 between the bonding sections of the base material sheet bonded with the cleaning surface forming sheet at the slacked section and a distance L2 between the bonding sections of the cleaning surface forming sheet bonded with the base material sheet at the slacked section are satisfied with a relationship expressed by a formula of “

L1<

L2”

.

3. The cleaning sheet according to claim 1,

wherein the plurality of cut portions by slits or through holes provided on the cleaning surface forming sheet.

4. The cleaning sheet according to claim 1,

wherein the plurality of cut portions is formed by a plurality of slits disposed in a state such that the longitudinal direction of the plurality of slits is parallel to a longitudinal direction of the bonding sections.

5. The cleaning sheet according to claim 1,

wherein portions inside end edge portions of the cleaning surface forming sheet are bonded to the base material sheet to form the bonding sections,

extension portions of the cleaning surface forming sheet are formed between the bonding sections and the end edge portions of the cleaning surface forming sheet, and

cuts are formed at the extension portions so that strip sections are formed.

6. The cleaning sheet according to claim 1,

wherein portions inside end edge portions of the cleaning surface forming sheet are bonded to the base material sheet to form the bonding sections,

extension portions of the cleaning surface forming sheet are formed between the bonding sections and the end edge portions of the cleaning surface forming sheet, and

band pieces are provided on the extension portions.

7. The cleaning sheet according to claim 6,

wherein cuts are formed at the extension portions and the band pieces so that strip sections are formed.

8. The cleaning sheet according to claim 1,

wherein portions inside end edge portions of the cleaning surface forming sheet are bonded to the base material sheet to form the bonding sections,

extension portions of the cleaning surface forming sheet are formed between the bonding sections and the end edge portions of the cleaning surface forming sheet, and

a folded plate, which includes a base portion and a slope portion folded and extended from the base portion, is provided on the extension portions.

9. The cleaning sheet according to claim 8,

wherein an adhesive surface is formed on the slope portion of the folded plate.

10. The cleaning sheet according to claim 1,

wherein portions inside end edge portions of the cleaning surface forming sheet are bonded to the base material sheet to form the bonding sections,

extension portions of the cleaning surface forming sheet are formed between the bonding sections and the end edge portions of the cleaning surface forming sheet,

the extension portions are folded so that curvedly folded portions are formed, and

cuts are formed at the curvedly folded portions so that hollow strip sections are formed.

11. The cleaning sheet according to claim 1,

wherein a plurality of bonding sections where the base material sheet and the cleaning surface forming sheet are bonded to each other is provided to form a plurality of slacked sections thereby.

12. The cleaning sheet according to claim 11,

wherein the heights of the plurality of slacked sections are different from each other, and the slacked sections are formed in a state such that the height of the slacked section formed in the middle portion of the cleaning surface forming sheet is the highest, and the heights of the slacked sections are gradually reduced toward in a direction of the both end portions of the cleaning surface forming sheet.

13. The cleaning sheet according to claim 11,

wherein flat sections including a plurality of opening holes are formed between the plurality of slacked sections, and

each of the flat sections are bonded to the base material sheet by an adhesive to form the bonding sections.

14. The cleaning sheet according to claim 13,

wherein an adhesive layer is formed between the flat sections and the base material sheet, and

the adhesive layer is exposed to the outside through the opening holes of the flat sections.

15. The cleaning sheet according to claim 1,

wherein the cleaning surface forming sheet is respectively to the front and back surfaces of the base material sheet.

16. The cleaning sheet according to claim 1,

wherein each of the base material sheet and the cleaning surface forming sheet is formed of nonwoven fabric.