Power tool

• US 9,764,486 B2
• Filed: 08/13/2013
• Issued: 09/19/2017
• Est. Priority Date: 04/04/2013
• Status: Active Grant

• Current Assignee: Milwaukee Electric Tool Corporation (Techtronic Industries Company Limited)
• Original Assignee: Milwaukee Electric Tool Corporation (Techtronic Industries Company Limited)
• Inventors: Bublitz, Scott D., Eisenhardt, Scott D., Hui, Hongping, Plowman, Andrew M., Steele, Michael S., Yang, Guojian
• Primary Examiner(s): PRONE, JASON D
• Application Number:
  US14/781,689
• Publication Number:
  US 20160039019A1
• Time in Patent Office: 1,498 Days
• Field of Search: 30199-211, 30228
• CPC Class Codes: B23D 29/005 for cutting sheets
• CPC Class Codes: B25F 5/02 Construction of casings, bodies or handles B25F5/006, B25F5/008 take precedence
• CPC Class Codes: B26B 15/00 Hand-held shears with motor-driven blades

Abstract

A power tool includes a housing, a motor positioned within the housing, a drive mechanism coupled to the motor and positioned within the housing, and a shear head rotatably mounted to the housing and coupled to the drive mechanism. The power tool also includes a manually-operable actuator supported by the housing. The actuator is movable between a first position, in which the shear head is held stationary relative to the housing, and a second position, in which the shear head is rotatable relative to the housing.

Claims

1. A power tool comprising:

a housing;

a motor positioned within the housing;

a drive mechanism coupled to the motor and positioned within the housing;

a shear head rotatably mounted to the housing and coupled to the drive mechanism; and

a manually-operable actuator supported by the housing, the actuator being movable between a first position, in which the actuator engages the shear head and the shear head is held stationary relative to the housing, and a second position, in which the actuator is spaced apart from the shear head and the shear head is rotatable relative to the housing,

wherein the drive mechanism includes an output shaft coupled to the shear head, wherein the output shaft has a longitudinal axis, and wherein the shear head is rotatable relative to the housing about the longitudinal axis.

2. The power tool of claim 1, wherein the manually-operable actuator is slidable relative to the housing between the first position and the second position.

3. The power tool of claim 1, wherein a portion of the actuator extends outwardly from the housing.

4. The power tool of claim 1, wherein one of the actuator and the shear head includes a projection and the other of the actuator and the shear head defines at least one recess, wherein the projection fits within the at least one recess when the actuator is in the first position, and wherein the projection is spaced apart from the at least one recess when the actuator is in the second position.

5. The power tool of claim 4, wherein the actuator includes the projection and the shear head defines the at least one recess as a plurality of recesses, and wherein each recess defines a discrete position of the shear head relative to the housing.

6. The power tool of claim 5, wherein the shear head includes a body and a support collar that defines the plurality of recesses, and wherein a portion of the support collar is received in the body of the shear head.

7. The power tool of claim 6, wherein the drive mechanism extends through the support collar so that the support collar surrounds a portion of the drive mechanism.

8. The power tool of claim 6, wherein the support collar is generally cylindrical, and wherein the plurality of recesses is formed in and equally spaced around the support collar.

9. The power tool of claim 1, further comprising a biasing member positioned between the housing and the actuator, wherein the biasing member biases the actuator toward the first position.

10. The power tool of claim 1, wherein the actuator is movable relative to the housing between the first position and the second position in a direction generally parallel to the longitudinal axis.

11. The power tool of claim 1, wherein the shear head is rotatable 360 degrees relative to the housing.

12. The power tool of claim 1, wherein the shear head includes a fixed blade and a movable blade, and wherein the movable blade is coupled to and driven by the drive mechanism.

13. The power tool of claim 1, further comprising a battery pack supported by the housing, wherein the battery pack is electrically coupled to the motor.

14. A power tool comprising:

a housing;

a motor positioned within the housing;

a drive mechanism coupled to the motor and positioned within the housing;

a shear head rotatably mounted to the housing and coupled to the drive mechanism; and

a manually-operable actuator supported by the housing, the actuator being movable between a first position, in which the actuator engages the shear head and the shear head is held stationary relative to the housing, and a second position, in which the actuator is spaced apart from the shear head and the shear head is rotatable relative to the housing,

wherein one of the actuator and the shear head includes a projection and the other of the actuator and the shear head defines at least one recess, wherein the projection fits within the at least one recess when the actuator is in the first position, and wherein the projection is spaced apart from the at least one recess when the actuator is in the second position,

wherein the actuator includes the projection and the shear head defines the at least one recess as a plurality of recesses, and wherein each recess defines a discrete position of the shear head relative to the housing,

wherein the shear head includes a body and a support collar that defines the plurality of recesses, and wherein a portion of the support collar is received in the body of the shear head, and

wherein the drive mechanism extends through the support collar so that the support collar surrounds a portion of the drive mechanism.