AU2021103662A4

AU2021103662A4 - Adaptor for a peeling tool

Info

Publication number: AU2021103662A4
Application number: AU2021103662A
Authority: AU
Inventors: Simon Mark Krelle; Peter Albert Strike
Original assignee: Panther Pe Tools Pty Ltd
Current assignee: Panther Pe Tools Pty Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-09-30
Anticipated expiration: 2029-06-28
Also published as: AU2021103662A6

Abstract

An adaptor for a peeling tool for resurfacing a pipe, the adaptor including: a shaft having a shaft axis extending between a first end and a second end, the first end connectable to a drill, and the second end connectable to the peeling tool, wherein the adaptor couples the peeling tool with the drill. 3/4 10 124 Figure 8

Description

3/4

10

124

Figure 8

ADAPTOR FOR A PEELING TOOL TECHNICAL FIELD

[001] The present invention relates to an adaptor for a peeling tool for resurfacing a

pipe.

BACKGROUND

[002] Any references to methods, apparatus or documents of the prior art are not to

be taken as constituting any evidence or admission that they formed, or form part of

the common general knowledge.

[003] High-density polyethylene, or HDPE, pipe is a heavy duty pipe made from

thermoplastic. It is generally used underground for high pressure pipelines such as

water mains, gas mains, sewer mains and the like. It is important to weld HDPE pipe

together properly to ensure safety as well as optimising the length of pipe. To

effectively weld the HDPE pipe the pipe surface in the weld area must be virgin

material. This may be achieved by scraping, or peeling, the outer surface of the pipe

using a special purpose tool such as the Plasson TM Pipe End Peeler which is

specifically designed to prep HDPE pipe for welding. Figure 1 shows a typical

peeling tool for removing the outer surface from the pipe, exposing virgin material.

The peeling tool 100 has a centre spider clamp 110 for securing the tool 100 within

the pipe 112 as shown in Figure 2. A threaded rod 114 for carrying a peeling arm

116 and a carriage nut 118 coupling the peeling arm 116 and the rod 114. The

scraping, or peeling process is typically done manually, using the PlassonTM tool

after the pipe is laid in a trench about 1.5 m below ground. The manual operation is

tedious (kilometres of pipe are laid at a time), cumbersome, and requires significant

strength.

[004] It would be desirable to improve the preparation process of a HDPE pipe for

welding.

SUMMARY OF INVENTION

[005] In an aspect, the invention provides an adaptor for a peeling tool for

resurfacing a pipe, the adaptor including:

a shaft having a shaft axis extending between a first end and a second end,

the first end connectable to a drill, and the second end connectable to the peeling

tool, wherein the adaptor couples the peeling tool with the drill.

[006] Preferably, the first end includes a hex drive for engagement with the drill.

[007] Still preferably, the second end includes a collar having an aperture with a

centre offset from the shaft axis, wherein the collar is configured to receive a

portion of the peeling tool.

[008] Preferably, the second end includes at least one planar wall defining the

aperture. Still preferably, the at least one planar wall is configured to abut a

planar surface of the peeling tool during engagement.

[009] Preferably, the shaft includes a viewing window extending axially from the

collar for viewing the peeling tool during use.

BRIEF DESCRIPTION OF THE DRAWINGS

[010] Preferred features, embodiments and variations of the invention may be

discerned from the following Detailed Description which provides sufficient

information for those skilled in the art to perform the invention. The Detailed

Description is not to be regarded as limiting the scope of the preceding Summary of

:3

the Invention in any way. The Detailed Description will make reference to a number

of drawings as follows:

Figure 1 is a typical peeling tool used for removing an outer surface from a pipe;

Figure 2 shows the peeling tool ready for use within the pipe;

Figure 3 is a perspective view of an adaptor for a peeling tool according to the

present invention;

Figure 4 is a left side view of the adaptor of Figure 3;

Figure 5 is a top view of the adaptor of Figure 3; and

Figure 6 is a right side view of the adaptor of Figure 3.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[011] Figures 3 to 6 illustrate an adaptor 10 for coupling a standard drill to a peeling

tool 100 (shown in Figures 1 and 2) in accordance with the present invention. The

adaptor 10 is best suited for a peeling tool 100 such as a Plasson Pipe End

Peeler T M , commonly used in Australia for preparing HDPE pipe for welding.

[012] The adaptor 10 includes a shaft 12 having a shaft axis A-A extending

longitudinally between a first end 14 and a second end 16. The shaft 12 may be an

elongate tubular shaft formed from steel, or other suitable material. The length of the

shaft 12 may vary, but it is recommended to be 230 - 300 mm to clear the centre

threaded rod 114 when the peeling tool 100 is installed onto the carriage nut 118

(Figures 1 and 2). In one embodiment, the shaft 12 includes an opening, or viewing

window 18 for viewing the carriage nut 118, allowing a user to avoid winding the

carriage nut 118 too far, locking up on the handle 120 (Figure 1) that tightens the centre spider clamp 110 (Figure 1), which, in turn would drive/turn the centre spider clamp 110 inside the pipe.

[013] The first end 14 of the shaft 12 includes a fitting 20 for engagement with a

standard drill 28 (Figure 8). The fitting 20 may be a 12mm or 12.7 (imperial) hex

drive or other suitable drive. The second end 16 of the shaft 12 includes a collar 22

having a recess or aperture 26 (See Figure 7) for receiving the peeling tool 100. The

collar 22 may be a separate piece welded to the shaft 12, or integral to the shaft 12.

The recess or aperture 26 is a generally semicircular shape having a centre offset

from the shaft axis A-A such that a first portion 22a of the collar 22 has a first wall

thickness and second portion 22b of the collar 22 has a second wall thickness

greater than the first portion 22a. The aperture 26 should not be deeper than 24 mm,

or no deeper than from the end of the carriage nut 118 to the quick release button

122. One internal wall 24 has a generally planar surface which aligns with the

carriage nut 118 for engagement with the peeling tool 100.

[014] In use, the adaptor 10 couples a standard drill to the peeling tool 100 by fitting

the hex drive 20 into the standard drill (see Figure 8) and the collar 22 onto the

carriage nut 118, ensuring the planar surface 24 of the collar 22 abuts the planar, or

flat, surface of the carriage nut 118 as shown in Figures 8 and 9.

[015] The adaptor 10 allows for a faster and smoother peeling operation, saving

time and money, and reducing risk of repetitive strain injury (RSI) and fatigue.

[016] In compliance with the statute, the invention has been described in language

more or less specific to structural or methodical features. The term "comprises" and

its variations, such as "comprising" and "comprised of" is used throughout in an

inclusive sense and not to the exclusion of any additional features.

[017] It is to be understood that the invention is not limited to specific features

shown or described since the means herein described comprises preferred forms of

putting the invention into effect.

[018] The invention is, therefore, claimed in any of its forms or modifications within

the proper scope of the appended claims appropriately interpreted by those skilled in

the art.

Claims

1. An adaptor for a peeling tool for resurfacing a pipe, the adaptor including:

a shaft having a shaft axis extending between a first end and a second end,

tool, wherein the adaptor couples the peeling tool with the drill.

2. The adaptor of claim 1, wherein the first end includes a hex drive connectable to

the drill.

3. The adaptor of claim 1 or 2, wherein the second end includes a collar for

receiving a portion of the peeling tool, the collar having an aperture with a centre

offset from the shaft axis.

4. The adaptor of claim 3, wherein the collar includes a planar wall forming part of

the aperture, and wherein the planar wall is configured to engage a planar surface

on the portion of the peeling tool received within the collar.

5. The adaptor of any one of the preceding claims, wherein the shaft includes a

viewing aperture extending axially from the collar.

6. The adaptor of any one of the preceding claims wherein the shaft has a length of

230-300 mm.

7. The adaptor of any one of the preceding claims, wherein the shaft is tubular.

8. The adaptor of claim 3, wherein the collar is integral with the shaft.

9. The adaptor of claim 3, wherein the collar includes a first wall portion having a

first thickness and a second wall portion having a second thickness, and wherein the

thickness of the second wall portion is greater than the thickness of the first wall

portion.