US 9,981,364 B2Granted

Hand tool impacting device with floating pin mechanism

AssigneeBrigham Young University

InventorsChristopher Andrew Mattson, Jake Allred, Jeremy Alsup, Travis Anderson, David Christensen, Jacob Morrise, Jon Ward

Life of this patent

Estimating the term…

patentgrep

Loading patent…

Abstract

A hand tool impacting device may include, a drive shaft with an aperture, an impaler disk, and a floating pin positioned within the aperture of the drive shaft. A set of circular ramps on the outer edge of the impaler disk may interact with a stationary pin insert to translate the drive shaft and create an impacting motion. A pair of springs placed against either side of the floating pin may allow a specialized tool bit to engage or disengage the impaler disk, thereby allowing selective use of translational impacting motion, or rotational torque. An impact bit for engaging the impaler disk may include, a tool head configured to engage a work piece and a tool shaft configured to be inserted into a hollow drive shaft to engage a floating pin. According to one embodiment, the impact bit includes a number of sleeves to guide the tool head during operation.

Claims18

Dependent claims

A hand tool, comprising:

an impacting device configured to be operably coupled to an external power source, the impacting device including:
a hollow drive shaft;
an impaler disk coaxially aligned with the drive shaft, the impaler disk including an impacting surface including a plurality of first ramps and a plurality of second ramps;
and
a floating pin extending radially through the drive shaft;
a tool chuck coupled to a distal end of the drive shaft;
and
an impact bit removably coupled in the tool chuck, the impact bit including:
a tool shaft coupled to the tool chuck;
a tool head coupled to a distal end of the tool shaft and configured to engage a work piece;
and
a tool shank extending from a proximal end of the tool shaft,
wherein the tool shank extends into the hollow drive shaft to engage the floating pin, the floating pin engaging the impacting surface of the impaler disk in response to engagement of the tool shank and the floating pin, and, in response to rotation of the hollow drive shaft in a first direction, a first end portion of the floating pin is positioned against a flat step surface of a first ramp of the plurality of first ramps of the impaler disk, and a second end of the floating pin is positioned against a flat step surface of a second ramp, of the plurality of first ramps, of the impaler disk, such that the impaler disk rotates together with the drive shaft.

10 more elements

A hand tool, comprising:

an impacting device configured to be received in a tool shell, and configured to receive a driving force from a motor received in the tool shell, the impacting device including:
an impaler disk coaxially aligned with a hollow drive shaft;
wherein the impaler disk comprises a plurality of first arcuate ramps and a plurality of second arcuate ramps concentrically arranged on an impacting surface;
and
a floating pin extending radially through the drive shaft, the floating pin selectively engaging the plurality of first arcuate ramps of the impaler disk in response to engagement of the floating pin with a tool shank of an impact bit;
a tool chuck coupled to the impacting device;
and
the impact bit coupled to the tool chuck, the tool chuck transferring the driving force from the impacting device to the impact bit, the impact bit including:
a tool shaft coupled to the tool chuck, the tool shaft including:
a first section having a polygonal cross section, the first section engaging the tool chuck;
and
a second section having a polygonal cross section;
a tool head coupled to the second section of the tool shaft and configured to engage a work piece;
an outer sleeve coupled to the second section of the tool shaft and surrounding the tool head;
an inner sleeve positioned within the outer sleeve and surrounding the tool head;
and
the tool shank extending outward from the first section of the tool shaft, and into the hollow drive shaft of the impacting device so as to engage the floating pin of the impacting device.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/793,368Filed 7 Jul 2015 · continuation
Priority: 20 Dec 2010
Published: US 2015/0375376 A131 Dec 2015
Granted: 29 May 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B25B 21/023
With means for imparting impact to screwdriver blade or nut socket: for imparting an axial impact, e.g. for self-tapping screws
B25D 11/102
Comprising a cam mechanism: the rotating axis of the cam member being coaxial with the axis of the tool
B25D 16/00
Portable percussive machines with superimposed rotation , the rotational movement of the
B25D 17/005
Details of, or accessories for, portable power-driven percussive tools: attachments or adapters placed between tool and hammer

Family

Application61/459,872Us provisional application · filed 20 Dec 2010
Application13/329,249Parent of this continuation · filed 17 Dec 2011
US 2015/0375376 A1Pre-grant publication · published 31 Dec 2015
US 9,102,046 B2Parent of this continuation
US 2012/0152577 A1Published application
US 9,981,364 B2This patent

From the US filing history. Foreign family members aren’t listed.