Tool receptacle and hand-held power tool

Patent metadata

Field	Value
Publication number	US-12083662-B2
Application number	US-201917256684-A
Country	US
Kind code	B2
Filing date	Jul 12, 2019
Priority date	Jul 23, 2018
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

A tool receptacle for a hand-held power tool, in particular for a demolition hammer or chisel hammer, includes—a receptacle element for receiving a tool, and a locking element which for locking the tool in the tool receptacle is mounted so as to be eccentric and rotatable on the receptacle element, wherein the locking element with the aid of rotating the latter about the receptacle element is capable of being moved from an unlocked state in which the tool is retrievable from the receptacle element to a locked state in which the locking element encompasses the tool in a form-fitting manner, and vice versa.

First claim

What is claimed is:

1. A tool receptacle for a hand-held power tool, the tool receptacle comprising:
a receptacle element for receiving a tool;
a lock element for locking the tool in the tool receptacle, the lock element mounted so as to be eccentric and rotatable on the receptacle element, the lock element when rotated about the receptacle element being capable of being moved from an unlocked state, the tool being retrievable from the receptacle element in the unlocked state, to a locked state, the lock element encompassing the tool in a form-fitting manner in the locked state, and vice versa; wherein a central axis is assigned to the receptacle element, and an eccentric axis is assigned to the lock element, the lock element being rotatably mounted about the eccentric axis, wherein the eccentric axis is disposed so as to be parallel to and spaced apart from the central axis; and
an eccentric element being disposed between the receptacle element and the lock element; wherein the lock element has a cylindrical internal geometry receiving the eccentric element, and a cylindrical external geometry disposed so as to be eccentric to the internal geometry.

2. The tool receptacle as recited in claim 1 wherein the lock element latches both in the unlocked state as well as in the locked state.

3. The tool receptacle as recited in claim 1 wherein the lock element when rotated about the eccentric axis is capable of being moved from the unlocked state to the locked state, and vice versa.

4. The tool receptacle as recited in claim 1 wherein the eccentric element has a cylindrical internal geometry receiving the receptacle element and constructed so as to be rotationally symmetrical to the central axis, and a cylindrical external geometry disposed so as to be eccentric to the internal geometry and received in the lock element and constructed so as to be rotationally symmetrical to the eccentric axis.

5. The tool receptacle as recited in claim 4 wherein the receptacle element has a cylindrical external geometry received in the internal geometry of the eccentric element and constructed so as to be rotationally symmetrical to the central axis.

6. The tool receptacle as recited in claim 1 wherein the eccentric element is rotationally fixed in relation to the receptacle element and wherein the lock element is rotatable in relation to the eccentric element.

7. The tool receptacle as recited in claim 1 wherein the lock element has a holding collar encompassing the tool in a form-fitting manner in the locked state.

8. The tool receptacle as recited in claim 7 wherein the holding collar extends out of an end face of the lock element.

9. The tool receptacle as recited in claim 8 wherein the holding collar has a holding portion disposed so as to be parallel to the end face and has a clearance, wherein the holding portion in the locked state encompasses the tool in a form-fitting manner, and wherein the tool in the locked state is guided through the clearance.

10. The tool receptacle as recited in claim 1 wherein the lock element has a tubular geometry having a variable wall thickness.

11. A hand-held power tool comprising the tool receptacle as recited in claim 1 .

12. The hand-held power tool as recited in claim 11 further comprising the tool, the tool being received in the receptacle element, the tool having a lock member, the lock element in the locked state encompassing the lock member in a form-fitting manner so as to lock the tool in the tool receptacle.

13. A demolition hammer or chisel hammer comprising the hand-held power tool as recited in claim 12 .

14. A tool receptacle for a hand-held power tool, the tool receptacle comprising:
a receptacle element for receiving a tool; and
a lock element for locking the tool in the tool receptacle, the lock element mounted so as to be eccentric and rotatable on the receptacle element, the lock element when rotated about the receptacle element being capable of being moved from an unlocked state, the tool being retrievable from the receptacle element in the unlocked state, to a locked state, the lock element encompassing the tool in a form-fitting manner in the locked state, and vice versa;
wherein the lock element has a holding collar encompassing the tool in a form-fitting manner in the locked state.

15. The tool receptacle as recited in claim 14 wherein the holding collar extends out of an end face of the lock element.

16. The tool receptacle as recited in claim 15 wherein the holding collar has a holding portion disposed so as to be parallel to the end face and has a clearance, wherein the holding portion in the locked state encompasses the tool in a form-fitting manner, and wherein the tool in the locked state is guided through the clearance.

17. A tool receptacle for a hand-held power tool, the tool receptacle comprising:
a receptacle element for receiving a tool; and
a lock element for locking the tool in the tool receptacle, the lock element mounted so as to be eccentric and rotatable on the receptacle element, the lock element when rotated about the receptacle element being capable of being moved from an unlocked state, the tool being retrievable from the receptacle element in the unlocked state, to a locked state, the lock element encompassing the tool in a form-fitting manner in the locked state, and vice versa; wherein a central axis is assigned to the receptacle element, and an eccentric axis is assigned to the lock element, the lock element being rotatably mounted about the eccentric axis, wherein the eccentric axis is disposed so as to be parallel to and spaced apart from the central axis; and
an eccentric element being disposed between the receptacle element and the lock element; wherein the eccentric element is rotationally fixed in relation to the receptacle element and wherein the lock element is rotatable in relation to the eccentric element.

Assignees

• Hilti Ag

Inventors

• Schamberger Michael
• Gerold Peter

Classifications

• Y10T279/17068

  Rotary socket · CPC title

• B25D2250/231

  Sleeve details · CPC title

• B25D17/084 Primary

  Rotating chucks or sockets · CPC title

• B25D17/082 Primary

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