PERCUSSION BOLT FOR A PERCUSSION MECHANISM

Abstract

A percussion bolt for a percussion mechanism of a power tool has a bolt element having a contact shoulder, said contact shoulder as seen in circumferential direction having a cross-section which varies.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of a percussion bolt with a contact shoulder, in a first exemplary embodiment;

FIG. 2 is a sectional view through the percussion bolt shown in FIG. 1, in a shoulder region; and

FIG. 3 is a sectional view through a percussion bolt in the shoulder region, in a second exemplary embodiment.

Claims

1. A percussion bolt for a percussion mechanism of a power tool, comprising a bolt element having a contact shoulder, said contact shoulder as seen in circumferential direction having a cross-section which varies.

2. A percussion bolt as defined in claim 1, wherein said bolt element has a first end adapted to face a second holder and a second end adapted to face the percussion mechanism, said contact shoulder being located between said ends.

3. A percussion bolt as defined in claim 1, wherein said contact shoulder has at least one shoulder-free circumferential portion.

4. A percussion bolt as defined in claim 1, wherein said bolt element over its length, with an exception of a region provided with said contact shoulder, has a cross-section that remains constant.

5. A percussion bolt as defined in claim 1, wherein said bolt element over its length, with an exception of a region provided with said contact shoulder, has a cross-section that remains substantially constant.

6. A percussion bolt as defined in claim 1, wherein said bolt and said contact shoulder in said region of said contact shoulder have a total cross-section which is equal to a cross-section of said bolt element in adjacent regions.

7. A percussion bolt as defined in claim 1, wherein said bolt and said contact shoulder in said region of said contact shoulder have a total cross-section which is substantially equal to a cross-section of said bolt element in adjacent regions.

8. A percussion bolt as defined in claim 1, wherein said contact shoulder is formed by at least one contact shoulder element as seen in a circumferential direction of said contact shoulder.

9. A percussion bolt as defined in claim 1, wherein said contact shoulder is formed by a plurality of circumferentially spaced contact shoulder elements.

10. A percussion bolt as defined in claim 3, wherein said bolt element in at least said shoulder-free circumferential portion, is provided with an indentation.

11. A percussion bolt as defined in claim 9, wherein said contact shoulder elements are located symmetrically.

12. A percussion bolt as defined in claim 10, wherein said contact shoulder elements are formed as identical elements.

13. A percussion bolt as defined in claim 1, wherein said contact shoulder has a plurality of a circumferentially spaced shoulder-free portions.

14. A percussion bolt as defined in claim 13, wherein said shoulder-free portions are formed as identical portions.

15. A power tool, comprising a percussion mechanism provided with a percussion bolt, said percussion bolt having a bolt element having a contact shoulder, said contact shoulder as seen in circumferential direction having a cross-section which varies.