IP Library › Granted Patent US 11,317,781
Granted Patent B2
US 11,317,781 · App. 16/618,454 · Granted May 3, 2022

Cleaning tool

Inventors: Naoki Shintani (Shikokuchuo, JP); Asako Fushimi (Shikokuchuo, JP)
Assignee: DAIO PAPER CORPORATION
A47L13/254A47L13/16A47L13/42
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Quick Facts
Patent No.
US 11,317,781
App. No.
16/618,454
Granted
May 3, 2022
Kind
B2
Abstract

The present disclosure has a head part 1 for attaching a cleaning sheet P, and a handle part 2 that is connected to the head part 1 and is for a user to grasp, wherein a plurality of line-shaped ribs, which are formed so as to be line-shaped a bottom surface view of the head part 1 , are formed in a bottom surface of the head part 1 . A cleaning tool that can improve the collection of dirt with a cleaning sheet can thus be provided.

Claims (26)

1. A cleaning tool comprising:

a head part to which a cleaning sheet is attached, the head part having a bottom surface;

a flat surface part formed on the lower surface side of the bottom surface;

a plurality of line-shaped ribs disposed on the bottom surface and protruding downwardly therefrom;

a handle part connected to the head part for a user to grip; and

a pair of longitudinal-edge recessed parts;

wherein each of the longitudinal-edge recessed parts extends to a respective longitudinal edge of the bottom surface and is located between ends of the respective longitudinal edge, the width of each of the longitudinal-edge recessed parts increasing with proximity to the longitudinal edge.

2. The cleaning tool according to claim 1 , wherein the head part is formed in a rectangular shape in a plan view; and

the line-shaped ribs disposed on the bottom surface of the head part include oblique-line ribs inclining from a central longitudinal axis and a transverse edge of the bottom part towards a central transverse axis and a longitudinal edge of the bottom part.

3. The cleaning tool according to claim 2 , wherein the line-shaped ribs include rhombus-shaped ribs formed along and symmetrical to the longitudinal axis of the bottom part.

4. The cleaning tool according to claim 3 , wherein the oblique-line ribs are disposed between the rhombus-shaped ribs.

5. The cleaning tool according to claim 2 , wherein lengths of the line-shaped ribs are 1 mm to 100 mm.

6. The cleaning tool according to claim 2 , wherein the line-shaped ribs are formed as to have convex configurations with 0.1 to 2 mm in height downward from the bottom surface of the head part.

7. The cleaning tool according to claim 2 , wherein the line-shaped ribs are formed on the bottom surface of the head part except the area of the longitudinal-edge recessed parts.

8. The cleaning tool according to claim 2 , further comprising a pair of transverse-edge recessed parts, wherein each of the transverse-edge recessed parts extends to a respective transverse edge of the bottom surface and is located between ends of the respective transverse edge, the width of each of the recessed parts increasing with proximity to the transverse edge.

9. The cleaning tool according to claim 8 , wherein the line-shaped ribs are formed on the bottom surface of the head part except the area of the longitudinal-edge recessed parts and the area of the transverse-edge recessed parts.

10. The cleaning tool according to claim 1 , wherein the line-shaped ribs include rhombus-shaped ribs formed along and symmetrical to the longitudinal axis of the bottom part.

11. The cleaning tool according to claim 10 , wherein lengths of the line-shaped ribs are 1 mm to 100 mm.

12. The cleaning tool according to claim 10 , wherein the line-shaped ribs are formed as to have convex configurations with 0.1 to 2 mm in height downward from the bottom surface of the head part.

13. The cleaning tool according to claim 10 , wherein the line-shaped ribs are formed on the bottom surface of the head part except the area of the longitudinal-edge recessed parts.

14. The cleaning tool according to claim 1 , wherein lengths of the line-shaped ribs are 1 mm to 100 mm.

15. The cleaning tool according to claim 14 , wherein the line-shaped ribs are formed as to have convex configurations with 0.1 to 2 mm in height downward from the bottom surface of the head part.

16. The cleaning tool according to claim 1 , wherein the line-shaped ribs are formed as to have convex configurations with 0.1 to 2 mm in height downward from the bottom surface of the head part.

17. The cleaning tool according to claim 1 , wherein the line-shaped ribs are formed on the bottom surface of the head part except the area of the longitudinal-edge recessed parts.

18. The cleaning tool according to claim 1 , further comprising a pair of transverse-edge recessed parts, wherein each of the transverse-edge recessed parts extends to a respective transverse edge of the bottom surface and is located between ends of the respective transverse edge, the width of each of the recessed parts increasing with proximity to the transverse edge.

19. The cleaning tool according to claim 18 , wherein the line-shaped ribs are formed on the bottom surface of the head part except the area of the longitudinal-edge recessed parts and the area of the transverse-edge recessed parts.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2019
From: SHINTANI, NAOKI; FUSHIMI, ASAKO
To: DAIO PAPER CORPORATION
Reel/Frame 051150/0501 →
Priority Claims (1)
JP JP2017-116567 · Jun 14, 2017 · national
Continuity (1)
Related Publication 20200113402A1 · Apr 16, 2020