High visibility headlamp

Patent metadata

Field	Value
Publication number	US-11215343-B2
Application number	US-202117197868-A
Country	US
Kind code	B2
Filing date	Mar 10, 2021
Priority date	Feb 1, 2019
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A headlamp includes a strap, a bracket coupled to the strap, and a first lighting assembly pivotally coupled to the bracket and including a first light housing enclosing a first LED, a battery housing enclosing a battery configured to power the first LED, and a first actuator operable to toggle the first lighting assembly between a first plurality of operating modes. The headlamp also includes a second lighting assembly coupled to the strap and having a plurality of second LEDs and a second actuator operable to toggle the second lighting assembly between a second plurality of operating modes such that the lighting assemblies are operable independently. A wire extends between the lighting assemblies to provide power from the battery to the plurality of second LEDs. The second lighting assembly extends along more than 50% of a circumference of the strap and follows a curvature of the strap.

First claim

What is claimed is:

1. A headlamp comprising:
a strap;
a first lighting assembly coupled to the strap, the first lighting assembly including a first light housing enclosing a first LED,
a battery housing enclosing a battery, the battery configured to provide power to the first LED, and
a first actuator for controlling operation of the first lighting assembly;

a second lighting assembly coupled to the strap, the second lighting assembly including a second LED, and
a second actuator for controlling operation of the second lighting assembly such that the second light assembly is operable independently of the first lighting assembly;

wherein the second lighting assembly extends along at least 20% of a circumference of the strap, and
wherein the second lighting assembly follows a curvature of the strap.

2. The headlamp of claim 1 , wherein the second lighting assembly includes a light pipe, and wherein the second lighting assembly is configured to direct light from the second LED into the light pipe to illuminate the light pipe.

3. The headlamp of claim 2 , wherein the light pipe is a first light pipe, and wherein the second lighting assembly further includes a second light pipe.

4. The headlamp of claim 3 , wherein the second lighting assembly further includes a second light housing enclosing the second LED, wherein the first light pipe extends from a first side of the second light housing, and wherein the second light pipe extends from a second side of the second light housing opposite the first side.

5. The headlamp of claim 1 , wherein the light pipe includes an interior having a plurality of ridges configured to reflect light from the second LED.

6. The headlamp of claim 5 , wherein a first ridge of the plurality of ridges has a first height, and wherein a second ridge of the plurality of ridges has a second height greater than the first height.

7. The headlamp of claim 6 , wherein the first ridge is closer than the second ridge to the second LED.

8. The headlamp of claim 1 , wherein the second lighting assembly includes a plurality of LEDs.

9. The headlamp of claim 1 , further comprising a wire extending between the first lighting assembly and the second lighting assembly, the wire configured to provide power from the battery to the second LED.

10. The headlamp of claim 1 , wherein the second lighting assembly extends along more than 50% of a circumference of the strap.

11. The headlamp of claim 1 , further comprising a bracket coupled to the strap, wherein the first lighting assembly is pivotally coupled to the bracket.

12. A headlamp comprising:
a strap configured to be worn over a hard hat, the strap including an elastic portion and an inelastic portion;
a bracket coupled to the strap;
a first lighting assembly pivotally coupled to the bracket, the first lighting assembly including a first light housing enclosing a first LED;
a second lighting assembly coupled to the strap, the second lighting assembly including a second LED; and
a wire extending between the first lighting assembly and the second lighting assembly, the wire including coils positioned along the elastic portion of the strap to permit expansion and contraction of the wire,
wherein the second lighting assembly is configured to distribute light at least partially around the circumference of the strap to increase visibility of a wearer of the headlamp from multiple directions.

13. The headlamp of claim 12 , wherein the strap includes reflective material disposed on an exterior side of the inelastic portion of the strap.

14. The headlamp of claim 12 , wherein the first LED is a white LED, and wherein the second LED is a red LED.

15. The headlamp of claim 12 , wherein the second lighting assembly includes a second light housing enclosing the second LED and an illumination element extending from the second light housing, wherein the second LED is configured to illuminate the illumination element along a length of the illumination element.

16. The headlamp of claim 15 , wherein the illumination element includes an interior having a plurality of ridges configured to reflect light from the second LED.

17. The headlamp of claim 16 , wherein a first ridge of the plurality of ridges has a first height, wherein a second ridge of the plurality of ridges has a second height greater than the first height, and wherein the first ridge is closer than the second ridge to the second LED.

18. A headlamp comprising:
a strap;
a first lighting assembly coupled to the strap, the first lighting assembly including a first light housing at least partially enclosing a first light source;
a second lighting assembly coupled to the strap, the second lighting assembly including a second light housing at least partially enclosing a second light source; and
an illumination element configured to emit light received from the second light source,
wherein the illumination element includes an interior having a plurality of ridges configured to reflect light from the second light source.

19. The headlamp of claim 18 , wherein the illumination element includes a first light pipe and a second light pipe, the first light pipe and the second light pipe extending from the second light housing in opposite directions.

20. The headlamp of claim 18 , further comprising a wire extending between the first lighting assembly and the second lighting assembly, the wire configured to provide power from the first lighting assembly to the second lighting assembly, wherein the strap includes an elastic portion and an inelastic portion, and wherein the wire includes coils positioned along the elastic portion of the strap to permit expansion and contraction of the wire.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Gall Benjamin D
• Manulik Sara M
• Amundson Alan

Classifications

• F21Y2113/13

  comprising an assembly of point-like light sources · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V21/084 Primary

  Head fittings · CPC title

• F21V23/002

  Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm · CPC title

• H05B47/10

  Controlling the light source · CPC title