DE29913782U1 - Compound tool handle - Google Patents

Description

The present invention relates to a composite tool handle.
5

A conventional tool handle according to the state of the art is made of a steel alloy, which is heavy, making it difficult for a user to operate and rotate the tool handle to work on a workpiece. In addition

10, a conventional tool handle is electrically conductive, so that the user can easily suffer a shock when the workpiece is under tension, causing injury to the user. Furthermore, a conventional tool handle with little elasticity easily generates a vibration when the user

15 zer holds the tool handle to rotate it in order to machine the workpiece, thereby reducing the stability of the tool handle.

According to one aspect of the present invention, a composite tool handle is provided which comprises a first body having an outer region and a second body applied to the outer region of the first body. The first

Hanover:

Koblenzer Straße 21 D-30173 Hannover Federal Republic of Germany Telephone 0511 / 988 75 07 Fax 0511 / 988 75 09

Please reply to:

Brunswick:

Theodor-Heuss-Straße 1 D-38122 Braunschweig Federal Republic of Germany Telephone 0531 / 28 14 0-0 Fax 0531 / 28 140 28

Body is made of carbon fiber or a carbon fiber material or glass fiber or a glass fiber material. The composite tool handle can advantageously have a third body which is formed or applied between the first body and the second body. The third body can be made of carbon fiber or glass fiber or a carbon fiber material or glass fiber material.

The drawings show:

Figure 1 is a front sectional view of an assembled tool handle according to an embodiment of the present invention;

Figure 2 is a front sectional view of an assembled tool handle according to another embodiment of the present invention;

Figure 3 is a front sectional view of an assembled tool handle according to another embodiment of the present invention;

Figure 4 is a front view in section showing a

shows a composite tool handle according to the invention of an embodiment used in a pair of pliers;

Figure 5 is a front sectional view of an assembled tool handle according to another embodiment of the present invention.

Referring to the drawings and initially to Figure 1, a composite tool handle 10 according to the present invention includes a first body 14 made from a steel alloy and having an outer periphery and a second body 12 made from a carbon fiber material or fiberglass material deposited on the outer periphery of the first body 14.

Accordingly, the second body 12 made of a carbon fiber material that is lightweight reduces the weight of the composite tool handle 10, thereby reducing the cost of manufacturing and facilitating handling by a user of the composite tool handle 10.

In addition, the second body 12 made of a carbon fiber material having high strength and rigidity can efficiently increase the vibration absorption property of the tool handle 10 when the user holds the tool handle 10 to rotate it to thereby machine a workpiece (not shown), thereby increasing the stability of the tool handle 10. Furthermore, the composite tool handle 10 with the second body 12 has high corrosion resistance and acid resistance.

Alternatively, the second body 12 made of a fiberglass material can be used to improve the appearance or aesthetic quality of the tool handle 10.

Furthermore, the second body 12 made of a carbon fiber material or a glass fiber material prevents the user from receiving an electric shock or being shocked by an electric shock due to its insulating property, thereby ensuring the safety of a user when handling the tool handle 10.

According to Figure 2, the length of the first body 14 is at least substantially or exactly half the length of the second body 12, thereby reducing the weight of the tool handle 10.

According to Figure 3, the assembled tool handle further comprises a third body 16 formed, arranged or applied between the first body 14 and the second body 12. The third body 16 is advantageously also made of a carbon fiber material or glass fiber material.

According to Figure 4, the assembled tool handle 10 is used for a pair of pliers or the handles or stems of a pair of pliers 20.

According to Figure 5, the first body 14 includes a hole 140 disposed in its lower end whereby the second body is partially received in the hole 140 during the manufacturing or molding process so that the first body 14 is rigidly and securely connected to the second body 12.

Claims (8)

1. A composite tool handle comprising:
a first body ( 14 ) with an outer region; and
a second body ( 12 ) which is applied or formed on the outer region of the first body ( 14 ). 2. The composite tool handle of claim 1, wherein the first body ( 14 ) includes a hole ( 140 ). 3. A composite tool handle according to claim 1 or 2, wherein the first body ( 14 ) is made of a steel alloy. 4. A composite tool handle according to any one of claims 1 to 3, wherein the second body ( 12 ) is made of carbon fibers or a carbon fiber material. 5. A composite tool handle according to any one of claims 1 to 3, wherein the second body ( 12 ) is made of a glass fiber material or glass fibers. 6. A composite tool handle according to any one of claims 1 to 5, further comprising a third body ( 16 ) disposed between the first body ( 14 ) and the second body ( 12 ). 7. A composite tool handle according to claim 6, wherein the third body ( 16 ) is made of carbon fibers or a carbon fiber material. 8. A composite tool handle according to claim 6, wherein the third body ( 16 ) is made of glass fibers or a glass fiber material.