Hand machine tool

Patent metadata

Field	Value
Publication number	US-11027406-B2
Application number	US-201314406480-A
Country	US
Kind code	B2
Filing date	May 29, 2013
Priority date	Jun 13, 2012
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

The hand machine tool according to the invention has an integrated tool or a tool holder 2 to receive a tool 4. An electric motor 5 serves to drive the tool 4 or the tool holder 2. A battery pack 18 for supplying power to the electric motor 5 can be pushed into a guide 23 in a first direction. A plurality of electrical contacts 31 for contacting counter contacts 32 of the battery pack 18 are disposed in a contact holder 36. Wires 40, which are connected in each case to one of the electrical contacts 31, have cores which extend in a wave-like manner in the first direction 28 adjacent to the electrical counter contact 32.

First claim

The invention claimed is:

1. A hand machine tool comprising:
an integrated tool or a tool holder for accommodating a tool;
an electric motor for driving the integrated tool or the tool holder;
a guide insertable into a battery pack along a first direction for supplying the electric motor with power; and
a contact holder, wherein multiple electrical contacts are situated in the contact holder for contacting counter contacts of the battery pack;
at least one strand connected to one of the electrical contacts situated in the contact holder of the hand machine tool and having wires having a wave-shaped progression along the first direction adjoining the electrical contact.

2. The hand machine tool as recited in claim 1 wherein the wires of the strand are braided.

3. The hand machine tool as recited in claim 1 wherein an entirety of the strand has a wave-shaped progression adjoining the electrical contact.

4. The hand machine tool as recited in claim 1 wherein the contact holder includes a terminal strip, and one end of the strand is attached in the terminal strip and another end of the strand is attached to one of the contacts.

5. The hand machine tool as recited in claim 4 wherein a length of the strand is greater than a distance of the terminal strip to the one contact.

6. The hand machine tool as recited in claim 4 wherein the strand has no insulating tubing between the terminal strip and the contact.

7. The hand machine tool as recited in claim 1 wherein the electrical contacts are movably mounted in the contact holder.

8. The hand machine tool as recited in claim 1 wherein the at least one strand is clamped to the electrical contact.

9. The hand machine tool as recited in claim 1 wherein the at least one strand is in the contact holder.

10. The hand machine tool as recited in claim 9 wherein the at least one strand is in a channel in the contact holder.

Assignees

• Hilti Ag

Inventors

• Burger Helmut
• Thanner Thomas
• Richter Rene

Classifications

• B25F5/006 Primary

  Vibration damping means · CPC title

• B25F5/02 Primary

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• H02K7/145

  Hand-held machine tool · CPC title