Hand-held power tool having a tool receiver

Patent metadata

Field	Value
Publication number	US-10639731-B2
Application number	US-201515510419-A
Country	US
Kind code	B2
Filing date	Sep 23, 2015
Priority date	Oct 20, 2014
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

A hand-held power tool includes an SDS tool receiver and a tool housing. The SDS tool receiver includes at least one vacuuming-off channel and is configured to receive an exchangeable insert tool such that the at least one vacuuming-off channel enables removal of dust produced during operation of the exchangeable insert tool with a workpiece. The tool housing includes at least one drive unit configured to drive the exchangeable insert tool.

First claim

The invention claimed is:

1. A hand-held power tool for driving an exchangeable insert tool having a cutting strand rotating on a guide unit, comprising:
a vacuuming-off connecting piece adapted for engagement to an external vacuum cleaning system;
a tool receiver including at least one vacuuming-off channel connected to said vacuuming-off connecting piece and configured to receive the guide unit of the exchangeable insert tool such that the at least one vacuuming-off channel enables removal of dust produced during operation of the exchangeable insert tool with a workpiece; and
a tool housing including at least one drive unit configured to drive the cutting strand of the exchangeable insert tool when the exchangeable insert tool is received in said tool receiver,
wherein the tool receiver further includes a main body and a closure element that is adjustable between an open position in which said main body is open and a closed position in which said main body is closed via the closure element,
wherein said main body includes an opening for exchangeable insertion of the exchangeable insert tool into the tool receiver when the closure element is in said open position and said main body is open,
the vacuuming-off connecting piece is disposed on the tool housing;
wherein said closure element is configured to close said opening in said closed position when said main body is closed, and
further wherein the at least one vacuuming-off channel is formed when the closure element is in said closed position to close the main body.

2. The hand-held power tool as claimed in claim 1 , wherein the tool receiver further includes a receiver housing that defines the at least one vacuuming-off channel.

3. The hand-held power tool as claimed in claim 1 , wherein:
the main body is connected to the tool housing, formed onto the tool housing, or integral with the tool housing.

4. The hand-held power tool as claimed in claim 3 , further comprising a clamping device disposed within the main body and configured to clamp the exchangeable insert tool.

5. The hand-held power tool as claimed in claim 3 , wherein the at least one vacuuming-off channel at least partially defined in at least one of: (i) the main body and (ii) the closure element.

6. The hand-held power tool as claimed in claim 3 , wherein the closure element includes a locking element configured to lock the closure element to the main body.

7. The hand-held power tool as claimed in claim 6 , wherein the locking element includes at least one latching element and is configured to latch onto the main body.

8. The hand-held power tool as claimed in claim 3 , wherein the closure element is pivotably mounted on the main body.

9. The hand-held power tool as claimed in claim 1 , wherein the at least one vacuuming-off channel has a tubular shape.

10. The hand-held power tool as claimed in claim 1 , wherein the tool receiver is further configured to receive an exchangeable insert tool that has a cutting strand configured to revolve around an assigned guide unit.

11. The hand-held power tool as claimed in claim 1 , wherein the hand-held power tool is a chain saw.

12. A hand-held power tool for driving an exchangeable insert tool having a cutting strand rotating on a guide unit, comprising:
a vacuuming-off connecting piece adapted for engagement to an external vacuum cleaning system;
a tool receiver including at least one vacuuming-off channel connected to said vacuuming-off connecting piece and configured to receive the guide unit of the exchangeable insert tool such that the at least one vacuuming-off channel enables removal of dust produced during operation of the exchangeable insert tool with a workpiece; and
a tool housing including at least one drive unit configured to drive the cutting strand of the exchangeable insert tool when the exchangeable insert tool is received in said tool receiver, wherein:
the vacuuming-off connecting piece is disposed on the tool housing;
the tool receiver further includes a main body and a closure element that is adjustable between an open position in which said main body is open and a closed position in which said main body is closed via the closure element;
the main body is connected to the tool housing, formed onto the tool housing, or integral with the tool housing;
the main body includes at least one first channel having a semicircular cross-section;
the closure element includes at least one second channel having a semicircular cross-section; and
in the closed position, the first channel and the second channel combine define the at least one vacuuming-off channel.

13. A hand-held power tool for driving an exchangeable insert tool having a cutting strand rotating on a guide unit, comprising:
a vacuuming-off connecting piece adapted for engagement to an external vacuum cleaning system;
a tool receiver including at least one vacuuming-off channel connected to said vacuuming-off connecting piece and configured to receive the guide unit of the exchangeable insert tool such that the at least one vacuuming-off channel enables removal of dust produced during operation of the exchangeable insert tool with a workpiece; and
a tool housing including at least one drive unit configured to drive the cutting strand of the exchangeable insert tool when the exchangeable insert tool is received in said tool receiver,
wherein the tool receiver further includes a main body and a closure element that is adjustable between an open position in which said main body is open and a closed position in which said main body is closed via the closure element,
wherein the vacuuming-off connecting piece is disposed on the tool housing;
further wherein the at least one vacuuming-off channel is formed when the closure element is in said closed position to close the main body,
wherein the closure element includes a locking element configured to lock the closure element to the main body, the locking element configured to connect to the main body via a screw connection, the main body including at least one screw thread.

14. A hand-held power tool for driving an exchangeable insert tool having a cutting strand rotating on a guide unit, comprising:
a vacuuming-off connecting piece adapted for engagement to an external vacuum cleaning system;
a tool receiver including at least one vacuuming-off channel connected to said vacuuming-off connecting piece and configured to receive the guide unit of the exchangeable insert tool such that the at least one vacuuming-off channel enables removal of dust produced during operation of the exchangeable insert tool with a workpiece; and
a tool housing including at least one drive unit configured to drive the cutting strand of the exchangeable insert tool when the exchangeable insert tool is received in said tool receiver,
wherein the tool receiver further includes a main body, a clamping device disposed within the main body configured to clamp the exchangeable insert tool to the main body, and a closure element that is adjustable between an open position in which said main body is open for access to said clamping device to engage the exchangeable insert tool to the clamping device and a closed position in which said main body is closed via the closure element preventing engagement of the exchangeable insert tool to the clamping device or disengagement of the exchangeable insert tool from the clamping device,
wherein the vacuuming-off connecting piece is disposed on the tool housing;
further wherein the at least one vacuuming-off channel is formed when the closure element is in said closed position to close the main body.

Assignees

• Bosch Gmbh Robert

Inventors

• Engelfried Uwe
• Duerr Thomas

Classifications

• B21J5/12

  Forming profiles on internal or external surfaces (making screw-thread by forging, pressing, or hammering B21K) · CPC title

• B23D57/023

  hand-held or hand-operated · CPC title

• B23Q11/0071

  dust collectors for hand tools · CPC title

• B25F3/00

  Associations of tools for different working operations with one portable power-drive means; Adapters therefor · CPC title

• B21K3/00

  Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like · CPC title