Rotary power tool

Patent metadata

Field	Value
Publication number	US-10828705-B2
Application number	US-201916710157-A
Country	US
Kind code	B2
Filing date	Dec 11, 2019
Priority date	Jul 31, 2017
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A power tool includes a housing, a motor supported within the housing, a handle extending from the housing, a trigger, a spindle, and a fluid delivery system. The handle defines a gap between the handle and the housing, and the trigger, coupled to the housing, is manipulable to energize the motor. The spindle is configured to rotate about a rotation axis in response to torque received from the motor, and the fluid delivery system is configured to supply fluid to the spindle. The fluid delivery system includes a valve operable to regulate a flow of fluid to the spindle, and the valve includes an actuator disposed within the gap.

First claim

What is claimed is:

1. A power tool, comprising:
a housing;
a motor supported within the housing;
a handle extending from the housing and defining a gap between the handle and the housing;
a trigger coupled to the handle, the trigger being manipulable to energize the motor;
a spindle configured to rotate about a rotational axis in response to torque received from the motor; and
a fluid delivery system configured to supply fluid to the spindle, the fluid delivery system including a first connector configured for attachment to a fluid supply line, a delivery line extending from a second connector to a third connector, and a valve operable to regulate a flow of fluid to the spindle, wherein the valve is disposed fluidly between the first connector and the second connector to regulate fluid flow from the fluid supply line to the delivery line, wherein the third connector fluidly communicates with an annular volume surrounding the spindle, wherein the first connector and the second connector are recessed into the housing, and
wherein the valve includes an actuator disposed within the gap.

2. The power tool of claim 1 , wherein actuator is rotatable about a valve axis, and wherein the valve axis is coplanar with the rotational axis of the spindle.

3. The power tool of claim 1 , wherein the housing defines an annular volume surrounding the spindle, wherein the spindle includes a radial aperture in communication with the annular volume, and wherein the fluid delivery system is configured to supply fluid into the annular volume.

4. The power tool of claim 1 , further comprising a battery removably coupled to the housing and configured to provide power to the motor, wherein the battery has an output voltage greater than 40 volts.

5. The power tool of claim 1 , wherein the housing includes a side wall extending generally parallel to the rotational axis, a rear wall opposite the handle, and an angled wall extending between the side wall and the rear wall, the angled wall oriented at an oblique angle relative to the rotational axis.

6. The power tool of claim 5 , further comprising an intake opening located on the angled wall, wherein air is drawn into the housing through the intake opening during operation of the power tool.

7. The power tool of claim 6 , further comprising a deflector disposed adjacent the intake opening, the deflector configured to direct fluid away from the intake opening.

8. The power tool of claim 6 , further comprising an exhaust opening located on the side wall, wherein air is exhausted out of the housing through the exhaust opening during operation of the power tool.

9. The power tool of claim 8 , further comprising a deflector extending from the exhaust opening to inhibit fluid from entering the housing through the exhaust opening.

10. A power tool, comprising:
a housing;
a motor supported within the housing;
a handle extending from the housing;
a trigger coupled to the handle, the trigger being manipulable to energize the motor;
a spindle configured to rotate about a rotational axis in response to torque received from the motor;
a fluid delivery system configured to supply fluid to an annular volume surrounding the spindle, the fluid delivery system including a first connector configured for attachment to a fluid supply line, a delivery line extending from a second connector to a third connector, and a valve operable to regulate a flow of fluid to the annular volume, wherein the valve is disposed fluidly between the first connector and the second connector to regulate fluid flow from the fluid supply line to the delivery line, wherein the third connector fluidly communicates with the annular volume, wherein the first connector and the second connector are recessed into the housing,
wherein the valve includes an actuator positioned on the handle,
wherein the actuator is rotatable about a valve axis, and
wherein the valve axis is coplanar with the rotational axis of the spindle.

11. The power tool of claim 10 , wherein the spindle includes a hollow interior and a radial aperture, wherein the radial aperture fluidly communicates the hollow interior of the spindle and the annular volume.

12. The power tool of claim 10 , wherein the housing includes a side wall extending generally parallel to the rotational axis, a rear wall opposite the handle, and an angled wall extending between the side wall and the rear wall, the angled wall oriented at an oblique angle relative to the rotational axis.

13. The power tool of claim 12 , further comprising an intake opening located on the angled wall and an exhaust opening located on the side wall, wherein air is drawn into the housing through the intake opening during operation of the power tool, and wherein air is exhausted out of the housing through the exhaust opening during operation of the power tool.

14. The power tool of claim 13 , further comprising a deflector disposed adjacent the intake opening, the deflector configured to direct fluid away from the intake opening.

15. The power tool of claim 13 , further comprising a deflector extending from the exhaust opening to inhibit fluid from entering the housing through the exhaust opening.

16. A power tool, comprising:
a housing;
a motor supported within the housing;
a handle extending from the housing;
a trigger coupled to the handle, the trigger being manipulable to energize the motor;
a spindle configured to rotate about a rotational axis in response to torque received from the motor; and
a fluid delivery system configured to supply fluid to the spindle, the fluid delivery system including a first connector configured for attachment to a fluid supply line, a delivery line extending from a second connector to a third connector, and a valve operable to regulate a flow of fluid to the spindle, wherein the valve is disposed fluidly between the first connector and the second connector to regulate fluid flow from the fluid supply line to the delivery line, wherein the third connector fluidly communicates with an annular volume surrounding the spindle, wherein the first connector and the second connector are recessed into the housing,
wherein the housing includes an air intake opening and a first deflector configured to inhibit fluid from entering the housing through the air intake opening,
wherein the housing includes an air exhaust opening and a second deflector configured to inhibit fluid from entering the housing through the air exhaust opening.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Carlson Mitchell
• Timmons Terry L
• Eiche Paul W

Classifications

• B23B45/00 Primary

  Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor (details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00) · CPC title

• B23B51/06

  Drills with lubricating or cooling equipment {(B23B51/042 takes precedence)} · CPC title

• B23B51/0486 Primary

  with lubricating or cooling equipment (B23B51/042 takes precedence) · CPC title

• B25F5/026

  in the form of an auxiliary handle (B25F5/024 takes precedence) · CPC title

• Y10T408/455

  Conducting channel extending to end of Tool · CPC title