HANDLE FOR WELDING TORCH AND WELDING TORCH

Abstract

A welding torch for arc welding, comprising a holder for retaining a welding electrode and for transmitting electric current to the welding electrode, a neck attached to the holder for supporting the holder and for transmitting electric current to the holder and a handle attached to the neck at a distal end of the handle. The neck is arranged to be connected to a cable for transmitting electric current to the neck, the handle is arranged to be attached to the neck at a distal end of the handle, the handle is arranged to receive the cable inside the handle. The handle comprises a body made of flexible material, for allowing movement of the distal end of the handle in relation to a proximal end of the handle.

Claims

1.-15. (canceled)

16. A welding torch for arc welding, said welding torch comprising: a holder for retaining a welding electrode and for transmitting electric current to the welding electrode; a neck attached to the holder for supporting the holder and for transmitting electric current to the holder; and a handle attached to the neck at a distal end of the handle, wherein the neck is configured to be connected to a cable for transmitting electric current to the neck, and the handle is configured to receive the cable inside the handle, and wherein the handle comprises a body made of flexible material, such as silicone rubber, for allowing movement of the distal end of the handle in relation to a proximal end of the handle.

17. The welding torch according to claim 16, wherein the handle comprises a first insert attached to the body at the distal end of the handle, wherein the first insert is attached to the neck.

18. The welding torch according to claim 16, wherein the handle is configured to be attached to a cable protector at the proximal end of the handle for protecting the cable.

19. The welding torch according to claim 18, wherein the handle comprises a second insert attached to the body at the proximal end of the handle, wherein the second insert is configured to be attached to the cable protector.

20. The welding torch according to claim 18, wherein the welding torch comprises a sleeve disposed inside the body of the handle at the proximal end of the handle, wherein the sleeve is made of rigid material, such as polyamide, and wherein the body and the cable protector are configured to be clamped between the second insert and a clamp, when the handle is attached to the cable protector.

21. The welding torch according to claim 16, wherein the handle comprises a pattern on at least part of the external surface of the handle for improving grip on the handle.

22. The welding torch according to claim 16, wherein the handle comprises two lateral protrusions disposed at the sides of the handle extending away from each other for improving grip on the handle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the following the disclosure will be described in greater detail by means of preferred embodiments with reference to the accompanying drawings, in which

[0016] FIG. 1 is a schematic cross-sectional view of a welding torch according to an embodiment of the disclosure;

[0017] FIG. 2a illustrates a body of a handle of a welding torch according to an embodiment of the disclosure;

[0018] FIG. 2b illustrates a first insert of a welding torch according to an embodiment of the disclosure;

[0019] FIG. 2c illustrates a second insert of a welding torch according to an embodiment of the disclosure;

[0020] FIG. 2d illustrates a holder and a neck of a welding torch according to an embodiment, wherein a cable has been attached to the neck;

[0021] FIG. 3 illustrates attachment in detached state of a cable protector to a handle of a welding torch according to an embodiment; and

[0022] FIG. 4 is a cross sectional view of a handle of a welding torch.

DETAILED DESCRIPTION OF THE DISCLOSURE

Handle for Welding Torch

[0023] The disclosure relates to a handle 11 for a welding torch 1 for arc welding, for example tungsten inert gas welding or metal inert gas welding. The handle 11 is arranged to be held by the user of the welding torch 1 during welding.

[0024] The welding torch 1 comprises a holder 12 for retaining a welding electrode 2 and for transmitting electric current to the welding electrode 2. For example, in tungsten inert gas welding or metal inert gas welding, the holder 12 also transmits shielding gas to the welding area.

[0025] The welding torch 1 comprises a neck 13 attached to the holder 12 for supporting the holder 12 and for transmitting electric current to the holder 12. For example, in tungsten inert gas welding or metal inert gas welding, the neck 13 also transmits shielding gas to holder 12. The neck 13 is arranged to be connected to a cable 3 for transmitting electric current to the neck 13. In tungsten inert gas welding, the cable 3 also transmits shielding gas to the neck 13. The connection between the cable 3 and the neck 13 is illustrated in FIG. 2d.

[0026] The handle 11 is arranged to be attached to the neck 13 at a distal end 113 of the handle 11. The distal end 113 is an end of the handle 11 located towards the welding area when the welding torch 1 is used for welding. The handle 11 is arranged to receive the cable 3 inside the handle 11. The handle 11 supports both the neck 13 and the cable 3, when the cable 3 is received inside the handle 11 and connected to the neck 13.

[0027] The handle 11 comprises a body 115 made of flexible material for allowing movement of the distal end 113 of the handle 11 in relation to a proximal end 114 of the handle 11. In other words, the body 115 is flexible so that it can be bent for allowing the distal end 113 to be moved in relation to the proximal end 114, or vice versa. The proximal end 114 is an end of the handle 11 located opposite the distal end 113. For example, the Shore A hardness of the body is between 30 to 70. According to an embodiment, the handle 11 is made of silicone rubber. Alternatively the handle 11 is made of some other insulating rubber. For example, the body 115 is formed by moulding. The body 115 is illustrated in FIG. 2a.

[0028] According to an embodiment, the handle 11 comprises a first insert 111 attached to the body 115 at the distal end 113 of the handle 11, wherein the first insert 111 is arranged to be attached to the neck 13. The purpose of the first insert 111 is to facilitate the attachment of the handle 11 to the neck 13. The first insert 111 is made of essentially rigid material, such as plastic. For example, the first insert 111 is attached to the body 115 by positive connection created during moulding of the body 115 at least partially around the first insert 111, or by gluing the first insert 111 and the body 115 together. The first insert 111 is illustrated in FIG. 2b.

[0029] According to an embodiment, the first insert 111 comprises a trigger 111a for controlling the flow of the electric current. The first insert 111 may also comprise controls (not shown in the figures) for controlling the welding process or a screen (not shown in the figures) for viewing data relating to the welding process.

[0030] According to an embodiment, the handle 11 is arranged to be attached to a cable protector 4, or cable cover, at the proximal end 114 of the handle 11. The purpose of the cable protector 4 is to protect the cable 3 from mechanical stresses occurring during welding. Usually the cable protector 4 is made of leather.

[0031] According to an embodiment, the handle 11 comprises a second insert 112 attached to the body 115 at the proximal end 114 of the handle 11, wherein the second insert 112 is arranged to be attached to the cable protector 4. The purpose of the second insert 112 is to facilitate the attachment of the handle 11 to the cable protector 4. The second insert 112 is made of essentially rigid material, such as plastic. For example, the second insert 112 is attached to the body 115 by positive connection during moulding of the body 115 at least partially around the second insert 112, or by gluing the second insert 112 and the body 115 together. For example, the second insert 112 is attached to the cable protector 4 by clamping the cable protector 4 between the second insert 112 and a clamp 5. The second insert 112 is illustrated in FIG. 2c. The connection between the second insert 112 and the cable protector 4 is illustrated in FIG. 3.

[0032] According to an alternative embodiment, the handle 11 is arranged to receive a sleeve 14 inside the body 115 at the proximal end 114 of the handle 11. The purpose of the sleeve 14 is to facilitate the attachment of the handle 11 to the cable protector 4. The sleeve 14 is made of essentially rigid material, such as polyamide. The body 115 and the cable protector 4 are arranged to be clamped between the sleeve 14 and a clamp 5, when the handle 11 is attached to the cable protector 4.

[0033] According to an embodiment, the handle 11 comprises a pattern 116 on at least part of the external surface of the handle 11 for improving grip on the handle 11. Preferably the pattern 116 is arranged on the surface of the body 115.

[0034] According to an embodiment, the handle 11 comprises two lateral protrusions 117 arranged at sides of the handle 11 extending away from each other for improving grip on the handle 11. Preferably the protrusions are arranged to the body 115. The protrusions are illustrated in FIG. 4.

Welding Torch

[0035] The disclosure relates also to a welding torch 1 for arc welding, for example tungsten inert gas welding.

[0036] The welding torch 1 comprises a holder 12 for retaining welding electrode 2 and for transmitting electric current to the welding electrode 2.

[0037] The welding torch 1 comprises a neck 13 attached to the holder 12 for supporting the holder 12 and for transmitting electric current to the holder 12. For example, in tungsten inert gas welding or metal inert gas welding, the neck 13 also transmits shielding gas to holder 12. The neck 13 is arranged to be connected to a cable 3 for transmitting electric current to the neck 13. The connection between the cable 3 and the neck 13 is illustrated in FIG. 2d. According to an embodiment, the neck 13 comprises a valve (not shown in the figures) for controlling the flow of the shielding gas.

[0038] The welding torch 1 comprises a handle 11 attached to the neck 13 at a distal end 113 of the handle 11. The distal end 113 is an end of the handle 11 located towards the welding area when the welding torch 1 is used for welding. The handle 11 is arranged to receive the cable 3 inside the handle 11. The handle 11 supports both the neck 13 and the cable 3, when the cable 3 is received inside the handle 11 and connected to the neck 13.

[0039] The handle 11 comprises a body 115 made of flexible material for allowing movement of the distal end 113 of the handle 11 in relation to a proximal end 114 of the handle 11. In other words, the body 115 is flexible so that the distal end 113 can be moved in relation to the proximal end 114, or vice versa. The proximal end 114 is an end of the handle 11 located opposite the distal end 113. According to an embodiment, the handle is made of silicone rubber. For example, the body 115 is formed by moulding. The body 115 is illustrated in FIG. 2a.

[0040] According to an embodiment, the cable 3 is arranged to transmit shielding gas to the neck 13, the neck 13 is arranged to transmit the shielding gas to the holder 12, and the holder 12 is arranged to transmit the shielding gas to the welding area. The shielding gas is used for example in tungsten inert gas welding.

[0041] According to an embodiment, the cable 3 is arranged to transmit cooling fluid, such as cooling liquid or cooling gas, to the neck 13, and the neck 13 is arranged to transmit the cooling fluid to the holder 12.

[0042] According to an embodiment, the handle 11 comprises a first insert 111 attached to the body 115 at the distal end 113 of the handle 11, wherein the first insert 111 is arranged to be attached to the neck 13. The purpose of the first insert 111 is to facilitate the attachment of the handle 11 to the neck 13. The first insert 111 is made of essentially rigid material, such as plastic. For example, the first insert 111 is attached to the body 115 by positive connection created during moulding of the body 115 at least partially around the first insert 111, or by gluing the first insert 111 and the body 115 together. The first insert 111 is illustrated in FIG. 2b.

[0043] According to an embodiment, the first insert 111 comprises a trigger 111a for controlling the flow of the electric current. The first insert 111 may also comprise controls (not shown in the figures) for controlling the welding process or a screen (not shown in the figures) for viewing data relating to the welding process.

[0044] According to an embodiment, the handle 11 is arranged to be attached to a cable protector 4, or cable cover, at the proximal end 114 of the handle 11. The purpose of the cable protector 4 is to protect the cable 3 from mechanical stresses occurring during welding. Usually the cable protector 4 is made of leather.

[0045] According to an embodiment, the handle 11 comprises a second insert 112 attached to the body 115 at the proximal end 114 of the handle 11, wherein the second insert 112 is arranged to be attached to the cable protector 4. The purpose of the second insert 112 is to facilitate the attachment of the handle 11 to the cable protector 4. The second insert 112 is made of essentially rigid material, such as plastic. For example, the second insert 112 is attached to the body 115 by positive connection during moulding of the body 115 at least partially around the second insert 112, or by gluing the second insert 112 and the body 115 together. For example, the second insert 112 is attached to the cable protector 4 by clamping the cable protector 4 between the second insert 112 and a clamp 5. The second insert 112 is illustrated in FIG. 2c. The connection between the second insert 112 and the cable protector 4 is illustrated in FIG. 3.

[0046] According to another embodiment, the welding torch 1 comprises a sleeve 14 arranged inside the body 115 of the handle 11 at the proximal end 114 of the handle 11, wherein the sleeve 14 is made of rigid material, such as polyamide, and the body 115 and the cable protector 4 are arranged to be clamped between the second insert 112 and a clamp 5, when the handle 11 is attached to the cable protector 4.

[0047] According to an embodiment, the handle 11 comprises a pattern 116 on at least part of the external surface of the handle 11 for improving grip on the handle 11. Preferably the pattern 116 is arranged on the surface of the body 115.

[0048] According to an embodiment, the handle 11 comprises two lateral protrusions 117 arranged at the sides of the handle 11 extending away from each other for improving grip on the handle 11. Preferably the protrusions are arranged to the body 115. The protrusions are illustrated in FIG. 4.