IP Library Granted Patent US 12,135,124
Granted Patent B2
US 12,135,124 · App. 18/244,674 · Granted Nov 5, 2024

Power tool attachment and dust collection system

Inventor: Makoto Chikaraishi (Anjo, JP)
Assignee: MAKITA CORPORATION
F21V33/00B25F5/00G02B1/045G02B6/0008B25D16/00B25D17/20
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,135,124
App. No.
18/244,674
Granted
Nov 5, 2024
Kind
B2
Abstract

A power tool attachment efficiently guides light and provides sufficient illumination when attached to a power tool. A power tool attachment is attachable to a power tool to cover a light source included in the power tool. The power tool attachment includes a light guide being a single member made of a transparent resin. The light guide includes a light receiver that receives light from the light source when the power tool attachment is attached to the power tool, and a light emitter that outputs the received light.

Claims (38)

1. A power tool attachment attachable to a power tool to cover a light source included in the power tool, the power tool attachment comprising:

a body case;

a dust box detachably attached to the body case; and

a light guide disposed in the body case, the light guide being a single member made of a transparent resin, the light guide including

a light receiver configured to receive light from the light source when the power tool attachment is attached to the power tool,

a light emitter configured to output the received light, and

a curved portion configured to accommodate the dust box.

2. The power tool attachment according to claim 1 , wherein a distance between the light source and the light receiver is less than or equal to 5 mm.

3. The power tool attachment according to claim 2 , wherein the light receiver has an area substantially equal to an area of a circle having a diameter 2 to 3 times the distance between the light source and the light receiver.

4. The power tool attachment according to claim 3 , wherein

the light guide includes the curved portion with a bend radius greater than or equal to 1.5 times a thickness of the light guide.

5. The power tool attachment according to claim 3 , wherein the light guide has a cross section including no corner formed between flat surfaces.

6. The power tool attachment according to claim 3 , wherein

the light guide has a same cross section across a length from the light receiver to the light emitter.

7. The power tool attachment according to claim 2 , wherein

the light guide includes the curved portion with a bend radius greater than or equal to 1.5 times a thickness of the light guide.

8. The power tool attachment according to claim 2 , wherein the light guide has a cross section including no corner formed between flat surfaces.

9. The power tool attachment according to claim 2 , wherein the light guide has a same cross section across a length from the light receiver to the light emitter.

10. The power tool attachment according to claim 1 , wherein

the light guide includes the curved portion with a bend radius greater than or equal to 1.5 times a thickness of the light guide.

11. The power tool attachment according to claim 10 , wherein the curved portion has a bend radius greater than or equal to 3 times the thickness of the light guide.

12. The power tool attachment according to claim 11 , wherein the light guide has a cross section including no corner formed between flat surfaces.

13. The power tool attachment according to claim 11 , wherein

the light guide has a same cross section across a length from the light receiver to the light emitter.

14. The power tool attachment according to claim 10 , wherein the light guide has a cross section including no corner formed between flat surfaces.

15. The power tool attachment according to claim 10 , wherein

the light guide has a same cross section across a length from the light receiver to the light emitter.

16. The power tool attachment according to claim 1 , wherein the light guide has a cross section including no corner formed between flat surfaces.

17. The power tool attachment according to claim 1 , wherein

the light guide has a same cross section across a length from the light receiver to the light emitter.

18. The power tool attachment according to claim 1 , wherein

the light guide includes a linear portion, and

the linear portion includes a positioning flange on a portion other than the light receiver and the light emitter.

19. The power tool attachment according to claim 1 , wherein

the light guide comprises an acrylic resin.

20. A dust collection system, comprising:

a power tool including a light source; and

the power tool attachment according to claim 1 attachable to the power tool to cover the light source.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2023
From: CHIKARAISHI, MAKOTO
To: MAKITA CORPORATION
Reel/Frame 064863/0579 →
Priority Claims (1)
JP 2022-177511 · Nov 4, 2022 · national
Continuity (1)
Related Publication 20240151390A1 · May 9, 2024