Tool socket

Patent metadata

Field	Value
Publication number	US-10099360-B2
Application number	US-201515120282-A
Country	US
Kind code	B2
Filing date	Feb 10, 2015
Priority date	Feb 20, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A tool socket 2 for a hand-held power tool has a tubular main body 17 and a dust cap 27. The main body 17 has an end face 19 that is adjoined by a cylindrical or prismatic outer surface 36. As seen in the insertion direction 20, the dust cap 27 consecutively has a sealing ring 28, a middle section 29 and a seat 30. As seen in the insertion direction 20, the sealing ring 28 is arranged in front of the end face 19 of the main body 17. The seat 30 has a cylindrical or prismatic inner surface 35 that is in contact with the outer surface 36 of the main body 17. The middle section 29 has a conical inner surface 39 whose inner diameter 40 decreases in the insertion direction 20 down to the inner diameter 37 of the seat 30.

First claim

What is claimed is:

1. A tool socket for a hand-held power tool, the tool socket comprising:
a tubular main body having, coaxially to a working axis, a cylindrical or prismatic chamber, a tool insertable in an insertion direction into the chamber, the tubular main body having a cylindrical or prismatic outer surface adjoined by an end face, and with respect to the insertion direction, a dust cap, the dust cap having consecutively a sealing ring, a middle section and a seat, and with respect to the insertion direction, the sealing ring being arranged in front of the end face of the main body, the middle section being arranged so as to surround the main body, the seat having a cylindrical or prismatic inner surface and being arranged so as to be in contact with the outer surface of the main body,
the middle section having a conical inner surface whose inner diameter decreases in the insertion direction down to an inner diameter of the seat, wherein a wedge-shaped gap exists between the middle section and the main body, the middle section forming a flexure hinge.

2. The tool socket as recited in claim 1 wherein an inclination of the conical inner surface relative to the working axis is between 5° and 20°.

3. The tool socket as recited in claim 1 wherein a dimension of the conical inner surface along the working axis is greater than half of the inner diameter.

4. The tool socket as recited in claim 1 wherein an inner diameter of the sealing ring is smaller than an inner diameter of the main body.

5. The tool socket as recited in claim 4 wherein the sealing ring has an inserted sealing lip whose plastic is softer than that of the dust cap.

6. The tool socket as recited in claim 1 wherein the tubular main body has the prismatic chamber and the seat has the prismatic inner surface.

7. The tool socket as recited in claim 1 wherein the tubular main body has the cylindrical chamber and the seat has the cylindrical inner surface.

8. The tool socket as recited in claim 1 wherein the sealing ring, the middle section and the seat form a monolithic component.

9. The tool socket as recited in claim 1 wherein the flexure hinge allows deflection of the sealing ring crosswise to the working axis.

10. The tool socket as recited in claim 1 wherein the seat has an annular thickening.

Assignees

• Hilti Ag

Inventors

• Meixner Ralf
• Hauptmann Udo

Classifications

• B25D2217/0069

  Protecting chucks against entering of chip dust · CPC title

• B25D17/088 Primary

  with radial movable locking elements co-operating with bit shafts specially adapted therefor · CPC title