Self-aligning tool guide
AssigneeHilti Aktiengesellschaft
InventorsPeer Schmidt, Dario Bralla, Serhey Khandozhko
Life of this patent
Estimating the term…
Abstract
A tool guide has a mounting, a lifting mechanism, and a chassis. The mounting is for fixing a hand-held machine tool. The mounting is mounted on the lifting mechanism. The lifting mechanism has a propulsion unit for vertically lifting the mounting. The chassis has two wheels on a wheel axle, a drive coupled with the wheels, and a steering system. The lifting mechanism is rigidly mounted on the chassis. A center of gravity sensor is arranged to detect a lateral deflection of the center of gravity of the lifting mechanism relative to the wheel axle. The steering system is configured to control the drive to deliver a torque counteracting the lateral deflection.
Claims10
A self-aligning tool guide with a hand-held machine tool, comprising:
- a mounting, wherein the hand-held machine tool is fixed in the mounting, wherein the hand-held machine tool is a power tool, and wherein a ceiling is machinable by the power tool;
- a lifting mechanism on which the mounting is mounted and wherein the lifting mechanism has a propulsion unit for lifting the mounting parallel to a lifting axis;
- a self-balancing chassis which has two wheels on a wheel axle, a drive coupled with the two wheels, and a steering system, wherein the lifting mechanism is mounted on the self-balancing chassis;
- a center of gravity sensor for detecting a lateral deflection of a center of gravity of the lifting mechanism relative to the wheel axle, wherein the steering system is configured to control the drive to output a torque that counteracts the lateral deflection;
- a contact sensor, wherein the contact sensor detects a contact force of the mounting which acts in a direction of gravity;
- and
- a control station, wherein the control station controls the propulsion unit depending on a detected contact pressure.
A control method for a self-aligning tool guide with a hand-held machine tool, wherein the self-aligning tool guide comprises:
- a mounting, wherein the hand-held machine tool is fixed in the mounting, wherein the hand-held machine tool is a power tool, and wherein a ceiling is machinable by the power tool;
- a lifting mechanism on which the mounting is mounted and wherein the lifting mechanism has a propulsion unit for lifting the mounting parallel to a lifting axis;
- a self-balancing chassis which has two wheels on a wheel axle, a drive coupled with the two wheels, and a steering system, wherein the lifting mechanism is mounted on the self-balancing chassis;
- a center of gravity sensor for detecting a lateral deflection of a center of gravity of the lifting mechanism relative to the wheel axle, wherein the steering system is configured to control the drive to output a torque that counteracts the lateral deflection;
- a contact sensor, wherein the contact sensor detects a contact force of the mounting which acts in a direction of gravity;
- and
- a control station, wherein the control station controls the propulsion unit depending on a detected contact pressure;
- and the control method comprising the steps of:
- detecting the lateral deflection of the center of gravity of the lifting mechanism relative to the wheel axle of the self-aligning tool guide;
- actuating the drive such that the drive outputs a torque that counteracts the lateral deflection;
- detecting a contact force of the mounting which acts in the direction of gravity by the contact sensor;
- and
- controling the propulsion unit by the control station depending on the detected contact pressure.
Dependencies are inferred from the claim text.