Self-aligning tool guide

US11478918B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11478918-B2
Application numberUS-201816766594-A
CountryUS
Kind codeB2
Filing dateOct 31, 2018
Priority dateNov 23, 2017
Publication dateOct 25, 2022
Grant dateOct 25, 2022

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  1. Title

    What the patent document calls the invention.

  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A self-aligning tool guide has a holder for securing a portable power tool for working on a ceiling, a lifting mechanism, and a self-balancing chassis. The holder is mounted on the lifting mechanism. The lifting mechanism has a propulsion system for raising the holder parallel to a lifting axis. The self-balancing chassis has two wheels on a wheel axis, a drive coupled to the two wheels, and a steering system. A contact sensor serves for detecting an indirect contact of the holder with the ceiling. The chassis has a brake. A controller has a mode in which the brake is activated and the balancing of the self-balancing chassis is deactivated.

First claim

Opening claim text (preview).

The invention claimed is: 1. A self-aligning tool guide, comprising: a holder for securing a portable power tool for working on a ceiling; a lifting mechanism on which the holder is mounted and which has a propulsion system for raising the holder parallel to a lifting axis; a self-balancing chassis which has two wheels on a wheel axis; a drive coupled to the two wheels; a contact sensor for detecting an indirect contact of the holder with the ceiling; and a brake for the self-balancing chassis. 2. A control method for the self-aligning tool guide as claimed in claim 1 , comprising the steps of: detecting a lateral deflection of a center of gravity of the lifting mechanism in relation to the wheel axis; balancing the self-balancing chassis by activation of the drive, wherein the drive outputs a torque that counteracts the lateral deflection; raising the holder to a ceiling via the lifting mechanism; and suspending the balancing upon detection of an indirect contact of the holder with the ceiling. 3. The control method as claimed in claim 2 further comprising the step of activating the brake upon detection of the indirect contact. 4. The control method as claimed in claim 2 further comprising the step of reactivating the balancing when an end of the indirect contact is detected. 5. The control method as claimed in claim 2 , wherein, when the indirect contact is detected, an alignment of the lifting mechanism in relation to a vertical alignment is detected and, if the alignment deviates from the vertical alignment, the lifting mechanism is lowered.

Assignees

Inventors

Classifications

  • Stabilising upright position of vehicles, e.g. of single axle vehicles · CPC title

  • B25D17/32Primary

    Trolleys · CPC title

  • Electric energy management in electromobility · CPC title

  • Single-axle vehicles · CPC title

  • Extensible supports, e.g. telescopic · CPC title

Patent family

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Frequently asked questions

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What does patent US11478918B2 cover?
A self-aligning tool guide has a holder for securing a portable power tool for working on a ceiling, a lifting mechanism, and a self-balancing chassis. The holder is mounted on the lifting mechanism. The lifting mechanism has a propulsion system for raising the holder parallel to a lifting axis. The self-balancing chassis has two wheels on a wheel axis, a drive coupled to the two wheels, and a …
Who is the assignee on this patent?
Hilti Ag
What technology area does this patent fall under?
Primary CPC classification B25D17/32. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Oct 25 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).