HAND TOOL WITH HANDLE

Abstract

The invention pertains to a hand tool with a handle portion and a method for manufacturing the same.

Claims

1. A hand tool comprising with a handle portion, wherein the handle portion comprises mainly a carbon fiber reinforced plastic containing from 10 to 50 wt % of carbon fibers.

2. The hand tool according to claim 1, characterized in that the plastic is a polyamide.

3. The hand tool according to claim 1, characterized in that the hand tool is a trowel containing at least the handle portion, a web portion, a base portion and a blade.

4. The hand tool according to claim 1, characterized in that the handle portion contains from 1 to 15 wt % metal.

5. The hand tool according to claim 3, characterized in that the handle portion, the web portion and/or the base portion are formed from two half-shells.

6. The hand tool according to claim 1, characterized in that at least one rib is also arranged on the handle portion.

7. The hand tool according to claim 3, characterized in that the web portion has an average circumference from 30 to 120 mm.

8. The hand tool according to claim 3, characterized in that a projection line perpendicular to the blade extends through a center of the base portion and a center of the handle portion in a longitudinal direction +/−10% of a length of the hand tool, respectively.

9. The hand tool according to claim 3, characterized in that the base portion and/or the half-shells are bonded to the blade with a liquid adhesive.

10. The hand tool according to claim 3, characterized in that the base portion has a length in a range from 100 to 500 mm.

11. The hand tool according to claim 5, characterized in that a combined weight of both half-shells is in a range from 100 to 300 grams.

12. The hand tool according to claim 1, characterized in that or the handle portion is at least partially covered by a handle material.

13. The hand tool according to claim 12, wherein one or more holes are filled with the handle material are arranged in the handle portion and/or the half-shells.

14. The hand tool according to claim 3, characterized in that the base portion has an open structure, in particular a rib or a honeycomb structure, on its side facing the blade.

15. A method for manufacturing the hand tool according to claim 1, characterized in that at least the handle portion is formed from two injection-molded half-shells, the two half-shells are non-positively connected with each other and then connected to a metal part of the hand tool.

Description

[0052] Further practical embodiments and advantages of the invention are described below in conjunction with the drawings. In the drawings:

[0053] FIG. 1 shows the inventive hand tool

[0054] FIG. 2 shows the side elevational view of a half-shell

[0055] The following description of the figures comprises concrete examples that pertain to preferred embodiments and are not meant to limit the scope of the invention. Some of the features described hereinafter or combinations thereof may serve to distinguish the invention from the prior art.

[0056] FIG. 1 shows, by way of example, a smoothing trowel 10 as a hand tool according to the invention. A handle portion 12 with a web portion 14 and a base portion 16 is formed from two half-shells 18a and 18b. Hence, half of the handle 12, the web portion 14 and the base portion 16, respectively, are integrally connected to one another in the form of a respective half-shell 18a and 18b. The base portion 16 is bonded to the blade 20. The half-shells 18a and 18b can be screwed together.

[0057] FIG. 2 shows, by way of example, a half-shell 18a. The part of the half-shell 18a forming one half of the handle 12 is shown. The part of the half-shell 18a forming one half of the web portion 14 is shown. And the part of the half-shell 18a forming one half of the base portion 16 is shown. Twenty-two refers to the projection line that extends perpendicular to the blade near the center of the base portion and near the center of the handle portion.

[0058] In this example, the handle portion 12, the web portion 14 and the base portion 16 together form the support within the meaning of the invention.

[0059] The features of the invention disclosed in the present description, in the drawings as well as in the claims both individually and in any combination may be essential to the realization of the various embodiments of the invention. The invention is not limited to the described embodiments. It may be varied to the extent as falls into the scope of the invention, taking into account the knowledge of one skilled in the art.

REFERENCE SIGN LIST

[0060] 10 Hand tool [0061] 12 Handle [0062] 14 Web portion [0063] 16 Base portion [0064] 18a, 18b Half-shells [0065] 20 Blade [0066] 22 Projection line