Hand-Held Power Tool comprising a Striking Mechanism and a Damping Element

Patent metadata

Field	Value
Publication number	US-2024383118-A1
Application number	US-202218694121-A
Country	US
Kind code	A1
Filing date	Aug 5, 2022
Priority date	Oct 4, 2021
Publication date	Nov 21, 2024
Grant date	—

Abstract

A hand-held power tool includes a tool receiving area which has an inner receiving area that is designed to receive an insert tool and also includes a striking mechanism for applying striking pulses to the insert tool. A locking bolt is provided in order to lock the insert tool, wherein the locking bolt is connected to an operating element which is designed to position the locking bolt such that the insert tool is locked in a locked position and is unlocked in an unlocked position in order to be removed from the inner receiving area, and the locking bolt is paired with at least one damping element for at least partly damping a force acting on the insert tool in an idle running state of the hand-held power tool. The tool receiving area is paired with a receiving chamber in which the locking bolt and the at least one damping element are arranged. The locking bolt is at least partly received in a receiving area of a force transmission element, and the at least one damping element is arranged directly on the force transmission element in the receiving chamber.

First claim

1 . A hand-held power tool, comprising:
a tool receiving area structure which has an inner receiving area with a longitudinal extension, said inner receiving area being designed to receive an insert tool; and a striking mechanism configured to apply striking pulses to the insert tool; a locking bolt arranged at least approximately perpendicular to the longitudinal extension of the inner receiving area and configured to lock the insert tool in the inner receiving area; an operating element to which the locking bolt is connected, said operating element being designed to position the locking bolt in the inner receiving area such that the insert tool is locked in a locked position in the inner receiving area and is unlocked in an unlocked position in order to be removed from the inner receiving area; at least one damping element, the locking bolt being paired with the at least one damping element for at least partly damping a force acting on the insert tool in an idle running state of the hand-held power tool; and a force transmission element, wherein the tool receiving area structure is paired with a receiving chamber in which the locking bolt and the at least one damping element are arranged, wherein the locking bolt is at least partly received in a receiving area of the force transmission element, and wherein the at least one damping element is arranged directly on the force transmission element in the receiving chamber.

2 . The hand-held power tool of claim 1 , wherein the receiving chamber is formed as a closed internal space.

3 . The hand-held power tool according to claim 1 , further comprising a cover element, wherein:
the cover element is arranged perpendicular to the longitudinal extension of the inner receiving area receptacle, and between a side surface of a base body of the tool receiving area structure and the operating element.

4 . The hand-held power tool of claim 1 , wherein the operating element is connected to the locking bolt in a rotationally fixed manner via a pin.

5 . The hand-held power tool of claim 1 , wherein the at least one damping element is arranged between a side wall of the receiving chamber facing the free end of the inner receiving area and the force transmission element.

6 . The hand-held power tool of claim 1 , wherein the at least one damping element is rod-shaped or C-shaped.

7 . The hand-held power tool of claim 1 , wherein the at least one damping element is an elastomeric element and/or a spiral spring.

8 . The hand-held power tool of claim 1 , wherein the force transmission element comprises at least one application portion configured to apply a force on the at least one damping element as well as a receiving area for configured to at least partly receive the locking bolt.

9 . The hand-held power tool of claim 8 , wherein the application portion is arranged along the longitudinal extension between the locking bolt and an end of the receiving chamber facing away from a free end of the inner receiving area.

10 . The hand-held power tool according to claim 1 , wherein the force transmission element is designed as a punching part, sintering part, or a steel part.

11 . The hand-held power tool of claim 1 , wherein the force transmission element is arranged adjacent to the inner receiving area along a longitudinal extension of the locking bolt that is arranged perpendicular to the longitudinal extension of the inner receiving area.

12 . The hand-held power tool of claim 1 , wherein the operating element is designed as a retaining bracket or rotary knob.

Assignees

• Bosch Gmbh Robert

Inventors

• Braun Willy

Classifications

• B25D2250/371

  Use of springs · CPC title

• B25D2250/131

  Idling mode of tools · CPC title

• B25D2222/57

  Elastomers, e.g. rubber · CPC title

• B25D17/082 Primary

  Retainers consisting of a swinging yoke or latching means (B25D17/086 takes precedence) · CPC title