Handheld drill/driver device

Patent metadata

Field	Value
Publication number	US-9366299-B2
Application number	US-201313927233-A
Country	US
Kind code	B2
Filing date	Jun 26, 2013
Priority date	Jun 28, 2012
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A handheld drill/driver device having a mechanical torque coupling that is provided to limit a maximum torque that can be transmitted to an insertion tool. The handheld drill/driver device have at least one monitoring unit that is provided to electrically output a characteristic quantity that is a function at least of a torque transmitted to the insertion tool.

First claim

What is claimed is:

1. A handheld drill/driver device, comprising:
a mechanical torque coupling to limit a maximum torque that can be transmitted to an insertion tool, the mechanical torque coupling being configured to modify the limiting torque that can be transmitted to the insertion tool as a function of an operator input via a first operating arrangement;
at least one monitoring unit to electrically output a torque characteristic quantity that is a function at least of a torque transmitted to the insertion tool;
a drive unit; and
a control unit to shut off the drive unit as a function of the torque characteristic quantity of the monitoring unit, and of an operator characteristic quantity,
wherein the operator characteristic quantity is a maximum torque outputted by the drive unit and is defined by an operator input via a second operating arrangement, the maximum torque outputted by the drive unit being greater than the limiting torque set at the mechanical torque coupling,
wherein the monitoring unit is configured to determine the torque characteristic quantity from at least one characteristic quantity of an energy supply of the drive unit,
wherein the torque characteristic quantity is substantially proportional to a momentary torque of the drive unit,
wherein the control unit compares the torque characteristic quantity to the operator characteristic quantity and shuts off the drive unit if the torque characteristic quantity exceeds the operator characteristic quantity.

2. The handheld drill/driver device of claim 1 , wherein the shutting off of the drive unit as a function of the characteristic quantity of the monitoring unit is made so as to be deactivatable.

3. The handheld drill/driver device of claim 1 , wherein the torque coupling is configured so as to be deactivatable.

4. A drilling and/or driving machine, comprising:
a handheld drill/driver device, including:
a mechanical torque coupling to limit a maximum torque that can be transmitted to an insertion tool;
at least one monitoring unit to electrically output a torque characteristic quantity that is a function at least of a torque transmitted to the insertion tool;
a drive unit; and
a control unit to shut off the drive unit as a function of the torque characteristic quantity of the monitoring unit, and of an operator characteristic quantity,
wherein the operator characteristic quantity is a maximum torque outputted by the drive unit and is defined by an operator input via a second operating arrangement, the maximum torque outputted by the drive unit being greater than the limiting torque set at the mechanical torque coupling,
wherein the monitoring unit is configured to determine the torque characteristic quantity from at least one characteristic quantity of an energy supply of the drive unit,
wherein the torque characteristic quantity is substantially proportional to a momentary torque of the drive unit,
wherein the control unit compares the torque characteristic quantity to the operator characteristic quantity and shuts off the drive unit when the torque characteristic quantity exceeds the operator characteristic quantity.

5. The drilling and/or driving machine of claim 4 , wherein the shutting off of the drive unit as a function of the torque characteristic quantity of the monitoring unit is made so as to be deactivatable.

6. The drilling and/or driving machine of claim 4 , wherein the torque coupling is configured so as to be deactivatable.

7. The drilling and/or driving machine of claim 4 , wherein the monitoring unit is configured to determine the torque characteristic quantity of the torque from at least one characteristic quantity of an energy supply of the drive unit.

8. The drilling and/or driving machine of claim 4 , wherein the control unit is configured to shut off the drive unit when a transmitted torque is reached that is greater than a maximum limiting torque that can be set using the mechanical torque coupling.

9. The drilling and/or driving machine of claim 4 , wherein the mechanical torque coupling is configured to modify the limiting torque that can be transmitted to the insertion tool as a function of an operator input via a first operating arrangement.

Assignees

• Roehm Heiko
• Bosch Gmbh Robert

Inventors

• Roehm Heiko

Classifications

• Y10T408/89

  Tool or Tool with support · CPC title

• F16D7/00

  Slip couplings, e.g. slipping on overload, for absorbing shock (combined with yielding shaft couplings F16D3/14; fluid slip couplings F16D31/00 - F16D35/00) · CPC title

• Y10T408/16

  with control means energized in response to activator stimulated by condition sensor · CPC title

• Y10T408/165

  to control Tool rotation · CPC title

• Y10T408/13

  with randomly-actuated stopping means · CPC title