Title of Invention	" A DEVICE FOR MAKING WIRES OF PIPES, INPARTICULAR ELECTRICAL WIRES".
Abstract	The invention relates to a marking sleeve for marking wires or pipes in the form of an annular or sleeve-shaped body manufactured in one piece and made of an elastic material. The marking sleeve is intended to bear one or more marking symbols and comprises a yoke-shaped outer part with two outer legs (1,2) which serve as side walls. At their lower ends, these legs (1,2) merge with an inner yoke-shaped outer part, which extends up between the legs (1,2) with two inner legs (4,5) and a web portion joining the upper ends of these (4,5). This web portion (6), together with the surrounding yoke-shaped outer part, delimits a tunnel-shaped passage for a wire which is to be marked. The outer surface of each of the outer legs is made with at least one longitudinal groove (9, 10, 11) and the mutually facing surfaces of each of the inner legs (4,5) are made with at least one longitudinal grooves (15, 16).

Title of Invention

" A DEVICE FOR MAKING WIRES OF PIPES, INPARTICULAR ELECTRICAL WIRES".

Abstract

The invention relates to a marking sleeve for marking wires or pipes in the form of an annular or sleeve-shaped body manufactured in one piece and made of an elastic material. The marking sleeve is intended to bear one or more marking symbols and comprises a yoke-shaped outer part with two outer legs (1,2) which serve as side walls. At their lower ends, these legs (1,2) merge with an inner yoke-shaped outer part, which extends up between the legs (1,2) with two inner legs (4,5) and a web portion joining the upper ends of these (4,5). This web portion (6), together with the surrounding yoke-shaped outer part, delimits a tunnel-shaped passage for a wire which is to be marked. The outer surface of each of the outer legs is made with at least one longitudinal groove (9, 10, 11) and the mutually facing surfaces of each of the inner legs (4,5) are made with at least one longitudinal grooves (15, 16).

Full Text	2. TECHNICAL FIELD The present inention relates to an arrangement for marking wires or pipes, in particular electric wires, in the form of an annular or sleeve-shaped body manufactured in one piece and made of an elastic material, preferably plastic, which body is intended to bear one or more marking symbols and comprises a yoke-shaped outer part with two outer legs which serve as side walls and, at their lower endsj merge with an inner yoke-shaped part, which extends up between the legs, with two inner legs and a web portion joining the upper ends of these togeter, which portion, together with the surrounding yoke-shaped outer part, delimits a tunnel-shaped passage for a wire or a pipe which is to be marked- BACKGROUND OF THE INVENTION Arrangement of this type, which may also be referred to as marking sleeves, have long been used for marking in particular electric wires and cables, but are also used for marking pneumatic and hydraulic pipes. 3. By virtue of the inner yoke-shaped partf the web portion of which forms a support for a wire which is guided through the marking sleeve, a number of bellows-like folds are formed, which afford an expansion possibility for the sleeve. One and the same marking sleeve can then be used for wires of diameters which vary within a given range. It is therefore possible to cover a diameter range from roughly 1 mm to roughly 16 mm by using marking sleeves of four standard sizes. The marking sleeves can either be made in the form of relatively small rings, each intended to bear a marking symbol, a, number of rings then being positioned next to one another on a wire so as to bring about a sequence of a number of marking symbols, or alternatively the marking sleeve can be made of greater length, in which case one and the same sleeve can bear a sequence of marking symbols. The marking symbols can either be printed directly onto the upper part of the sleeve? which part connects the upper edges of the outer legs of the sleeve, or alternatively be printed on 4- separate labels which are inserted into an upper? longitudinal pocket of the sleeve- The sleeve® are suitably manufactured by extrusion of a relatively soft plastic material. Marking sleeves of the type indicated above? which are each to be capable of being used on wires of different diametersj should have two characteristics, which can be difficult to combine- The fxrst characteristic is that the sleeves, after they have been threaded onto a wire from one of its ends, are to be secured in the desired position without risk that they will rotate on the wire or be displaced along it, which requires good friction. The second characteristics, which is difficult to combine with the first, is that the sleeves are to be easy to thread onto a wire, that is to say the friction between the sleeve and the wire is to be as low as possible during threading-on. This applies particularly in the case of longer sleeves. 5. THE OBJECT OF THE INVENTION One main object of the present invention is to produce a marking sleeve of the type described abovej which retains the capacity of previous sleeve for being secured in the desired position on a wire but which is easier to thread onto the wire than those previously known. The invention is based on the insight thar this can be achieved by virtue of the fact that the working sleeve is nade with weakened portions which serve as hinges and facilitate deformation of the sleeve during threading onto a wire but do not appreciably affect the grip on the wirei when the sleeve has taken up the desired position on the wire. 6. According to the present invention» the particularly characteristic feature of an arrangement of the type indicated in the first paragraph is then that the outer surface of each of the outer legs is made with at least one longitudinal groove* and that the mutually facing surfaces of each of the inner legs are made with at least one longitudinal groove, which grooves form deformation indications which facilitate deformation of the annular or sleeve-shaped bodyi when a wire or a pipe is guided through the tunnel—shaped passage. By virtue of the fact that deformation of the marking sleeve is facilitated) its threading onto a wire is simplified) while the elasticity in the material still brings about a secure grip on the wire when the sleeve has been guided into place. Owing to the fact that the deformation indications are made in the form of longitudinal groovesj manufacture of the sleeve by extrusion is not made more difficult. 7. In order to facilitate pressing-down of the inner yoke-shaped part in the sleeve * which part serves as a supportj the rounded transition between each outer and inner leg is suitably made with a longitudinal groove on the outside of the rounded portion. A groove is preferably also arranged on each side of the rounded portion essentially at the transition between this and the respective leg. In an especially preferred embodiment» each of the outer legs is moreover provided with a longitudinal groove essentially in the middle of the leg and a longiktudinai groove along the upper edge of the legt and the mutually facing surfaces of the inner legs are each provided with a longitudinal groove along the upper edge of the respective leg- The invention will be described in a greater detail below with reference to the embodiments shown by way of example in the accompanying drawings. BRIEF DESCRIPTION OF THE FIGURES IN THE ACCOMPANYINS DRAWINQS Figs 1 and 2 show two embodiments of a marking sleeve according to the invention. 8 Fig. 3 is an end view of the marking sleeve according to FiQ- 1 during its threading onto a wire. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Figs, I and 2 show two examples of marking sleeves^ the general shape of which is previously known- They are extruded in a relatively soft plastic material and each comprises a yoke-shaped part with two side walIs 1, 2 which are joined together at their upper ends via a web portion 3. At their lower ends, the outer legs merge with an inner yoke-shaped part, which extends up between the legs, with two inner legs 4, 5 and a web portion 6 joining the upper ends of these together- This portion, together with the surrounding yoke-shaped outer part, forms a tunnel-shaped passage of a height H for a wire onto which the sleeve is to be threaded. In this connect ioni the web portion 6 forms a bottom suport for the wire. 9. The sleeve according to Fig.1 is made with a long1 tudinal pocket 7 which extends above the web portion 3 and is intended to receive a marking labeln 8 provided with the desired narking symbols. In the embodiment according to Fig.2, the marking symbols are intended to be printed directly onto the web portion 3. Marking sleeves according to Figs- 1 and 2 can be used for wires of diamters lying with a given range, the inner yoke-shaped part forming a number of expansion folds of the profile. These allow the web portion 6 to be pressed downward by a wire end of a diameter greater than the height H of the passage through the marking sleeve. The outer legs 1 and 2 of the sleeve will then be pressed outward by the wire end. 10 When a wire which is relatively thick in relation to the area of the tunnel-shaped passage is guided through» appreciable resistance to the wire being guided through can be encountered. The reason for this is inter alia that the wire end has to "plough its way" through the sleeve* the relatively soft material of which is pressed outward only directly in front of the end of the wire. In order to facilitate guiding-through of the wire* a sleeve according to the invention isj as 1lustrated in Figs- 1 and 2, made with a number of longitudinal grooves which form deformation indications which facilitate deformation of the sleeve in connection with threading onto a wire- By making use of such longitudinal groovesj it has been possible to establish that the material of the sleeve in front of the wire end tends to be pressed outward further in front of the wire end than in the case of a sleeve which has no grooves. This means that the friction forces in particular toward the front portion of the wire are reducedi which facilitates threading-on. 11. Figs, 1 and 2 show an embodiment which is preferred according to the invention, in which the outer legs 1 and 2 are each provided with three longiudinal grooves 9» 10 and 11i of which the groove 10 runs essentially along a center line of each leg, while the other two grooves 9 and 11, run along the upper end, respectively, lower edge of each leg. The outer legs 1 and 2 merge with respective inner legs 4, 5 via rounded portions 12* 13 which each leave a longitudinal groove 14 along their lower part-The inner legs 4, 5 are each provided with two grooves on the mutually facing surfaces, which grooves run along the upper end * respectively, lower edge of each leg. Fig 3 shows a marking sleeve according to Fig- 1 during threading onto a wire 17 of a diameter which is considerably greater than the height H of the passage through the sleeve- In this connection, as can be seen, the inner yoke-shaped part with its web portion 6, which serves as a support surface for the wire, has been prssed downward while the outer legs 1, 2 of the sleeve have been bent out. By means of the grooves shown, this deformation of the sleeve is simplified, and a shape we11 adapted 12- to the wire 17 is obtained in the deformed state as well. Even a wire of the diameter shown can therefore be pushed through the marking sleeve relatively easily, at the same time as the sleeve will be secured firmly on the wire after it has been guided into the desired position- The embodiment shown comprises a number of grooves in the various legs. An appreciable effect can nevertheless already be obtained with a smaller number of grooves. It is therefore possible to make use of a groove which runs essentially centrally on each leg and is suitably complemented by a groove in each of the rounded portions which interconnect the respective pairs of legs. The exact shape of the grooves and also their positioning can be varied as desired as long as they perform the function of bringing about weakenings which serve as deformation indications and facilitate threading of the sleeve onto a wire but do not appreciably worsen the grip around the wire? when the sleeve is located in the desired position on it. 7 We Claim . A device for marking wires or pipes, in particular electric wires, comprising one of an annular and sleeve shaped body configured with an elastic material in one piece, the body being intended to bear one or more marking symbols, and comprises a yoke-shaped outer part having two outer legs (1, 2) which serve as side walls, the lower ends of the side walls merge with an inner yoke-shaped part, having two inner legs (4, 5), the inner yoke - shaped part upwardly extends between the outer legs (1,2), the two inner legs (4, 5) and a web portion (6) joining the upper ends of the parts, the web portion (6) together with the yoke - shaped outer part, delimits a tunnel - shaped passage purposive for insertably guiding therethrough the markable wires or pipes, characterized in that the outer surface of each of the outer legs (1, 2) is provided with at least one longitudinal groove (9, 10, 11) and in that the mutually facing surfaces of each of the inner legs (4, 5) are configured with at least one longitudinal groove (15,16), the grooves forming at least one deformation indication which facilitates deformation of the annular or sleeve - shaped body, when at least one wire (17) or a pipe is guided through the tunnel -shaped passage. The device as claimed in claim 1, wherein the transition between each outer and inner leg (1, 2; 4, 5) is circular, and wherein a longitudinal groove (14) runs on the outer surface of the circle. 8 3. The device as claimed in claim 1 or 2, wherein the transition between each outer and inner leg (1, 2; 4, 5) is circular, and wherein a longitudinal groove (11, 16) runs on each side of the circle essentially at the transition zone between the circle and the respective leg. 4. The device as claimed in claim 2 or 3, wherein the outer surface of each of the outer legs (1, 2) is provided with a first longitudinal groove (10) essentially In the middle of the teg (1, 2) and a second longitudinal groove (9) along the upper edge of the leg (1, 2), and wherein the mutually facing surfaces of each of the inner legs (4, 5) are additionally provided with a third longitudinal groove (15) along the upper edge of the leg (4, 5). DATED THIS 31st DAY OF JANUARY 2003 The invention relates to a marking sleeve for marking wires or pipes in the form of an annular or sleeve-shaped body manufactured in one piece and made of an elastic material. The marking sleeve is intended to bear one or more marking symbols and comprises a yoke-shaped outer part with two outer legs (1,2) which serve as side walls. At their lower ends, these legs (1,2) merge with an inner yoke-shaped outer part, which extends up between the legs (1,2) with two inner legs (4,5) and a web portion joining the upper ends of these (4,5). This web portion (6), together with the surrounding yoke-shaped outer part, delimits a tunnel-shaped passage for a wire which is to be marked. The outer surface of each of the outer legs is made with at least one longitudinal groove (9, 10, 11) and the mutually facing surfaces of each of the inner legs (4,5) are made with at least one longitudinal grooves (15, 16).

Full Text

2.
TECHNICAL FIELD
The present inention relates to an arrangement for marking wires or pipes, in particular electric wires, in the form of an annular or sleeve-shaped body manufactured in one piece and made of an elastic material, preferably plastic, which body is intended to bear one or more marking symbols and comprises a yoke-shaped outer part with two outer legs which serve as side walls and, at their lower endsj merge with an inner yoke-shaped part, which extends up between the legs, with two inner legs and a web portion joining the upper ends of these togeter, which portion, together with the surrounding yoke-shaped outer part, delimits a tunnel-shaped passage for a wire or a pipe which is to be marked-
BACKGROUND OF THE INVENTION
Arrangement of this type, which may also be referred to as marking sleeves, have long been used for marking in particular electric wires and cables, but are also used for marking pneumatic and hydraulic pipes.
3.
By virtue of the inner yoke-shaped partf the web portion of which forms a support for a wire which is guided through the marking sleeve, a number of bellows-like folds are formed, which afford an expansion possibility for the sleeve. One and the same marking sleeve can then be used for wires of diameters which vary within a given range. It is therefore possible to cover a diameter range from roughly 1 mm to roughly 16 mm by using marking sleeves of four standard sizes.
The marking sleeves can either be made in the form of relatively small rings, each intended to bear a marking symbol, a, number of rings then being positioned next to one another on a wire so as to bring about a sequence of a number of marking symbols, or alternatively the marking sleeve can be made of greater length, in which case one and the same sleeve can bear a sequence of marking symbols.
The marking symbols can either be printed directly onto the upper part of the sleeve? which part connects the upper edges of the outer legs of the sleeve, or alternatively be printed on
4-
separate labels which are inserted into an upper? longitudinal pocket of the sleeve- The sleeve® are suitably manufactured by extrusion of a relatively soft plastic material.
Marking sleeves of the type indicated above? which are each to be capable of being used on wires of different diametersj should have two characteristics, which can be difficult to combine- The fxrst characteristic is that the sleeves, after they have been threaded onto a wire from one of its ends, are to be secured in the desired position without risk that they will rotate on the wire or be displaced along it, which requires good friction. The second characteristics, which is difficult to combine with the first, is that the sleeves are to be easy to thread onto a wire, that is to say the friction between the sleeve and the wire is to be as low as possible during threading-on. This applies particularly in the case of longer sleeves.
5.
THE OBJECT OF THE INVENTION
One main object of the present invention is to produce a marking sleeve of the type described abovej which retains the capacity of previous sleeve for being secured in the desired position on a wire but which is easier to thread onto the wire than those previously known.
The invention is based on the insight thar this can be achieved by virtue of the fact that the working sleeve is nade with weakened portions which serve as hinges and facilitate deformation of the sleeve during threading onto a wire but do not appreciably affect the grip on the wirei when the sleeve has taken up the desired position on the wire.
6.
According to the present invention» the particularly characteristic feature of an arrangement of the type indicated in the first paragraph is then that the outer surface of each of the outer legs is made with at least one longitudinal groove* and that the mutually facing surfaces of each of the inner legs are made with at least one longitudinal groove, which grooves form deformation indications which facilitate deformation of the annular or sleeve-shaped bodyi when a wire or a pipe is guided through the tunnel—shaped passage.
By virtue of the fact that deformation of the marking sleeve is facilitated) its threading onto a wire is simplified) while the elasticity in the material still brings about a secure grip on the wire when the sleeve has been guided into place. Owing to the fact that the deformation indications are made in the form of longitudinal groovesj manufacture of the sleeve by extrusion is not made more difficult.
7.
In order to facilitate pressing-down of the inner yoke-shaped part in the sleeve * which part serves as a supportj the rounded transition between each outer and inner leg is suitably made with a longitudinal groove on the outside of the rounded portion. A groove is preferably also arranged on each side of the rounded portion essentially at the transition between this and the respective leg.
In an especially preferred embodiment» each of the outer legs is moreover provided with a longitudinal groove essentially in the middle of the leg and a longiktudinai groove along the upper edge of the legt and the mutually facing surfaces of the inner legs are each provided with a longitudinal groove along the upper edge of the respective leg-
The invention will be described in a greater detail below with reference to the embodiments shown by way of example in the accompanying drawings.
BRIEF DESCRIPTION OF THE FIGURES IN THE ACCOMPANYINS DRAWINQS
Figs 1 and 2 show two embodiments of a marking sleeve according to the invention.
8
Fig. 3 is an end view of the marking sleeve according to FiQ- 1 during its threading onto a wire.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Figs, I and 2 show two examples of marking sleeves^ the general shape of which is previously known- They are extruded in a relatively soft plastic material and each comprises a yoke-shaped part with two side walIs 1, 2 which are joined together at their upper ends via a web portion 3. At their lower ends, the outer legs merge with an inner yoke-shaped part, which extends up between the legs, with two inner legs 4, 5 and a web portion 6 joining the upper ends of these together- This portion, together with the surrounding yoke-shaped outer part, forms a tunnel-shaped passage of a height H for a wire onto which the sleeve is to be threaded. In this connect ioni the web portion 6 forms a bottom suport for the wire.
9.
The sleeve according to Fig.1 is made with a
long1 tudinal pocket 7 which extends above the web portion 3 and
is intended to receive a marking labeln 8 provided with the desired narking symbols.
In the embodiment according to Fig.2, the marking symbols are intended to be printed directly onto the web portion 3.
Marking sleeves according to Figs- 1 and 2 can be used for wires of diamters lying with a given range, the inner yoke-shaped part forming a number of expansion folds of the profile. These allow the web portion 6 to be pressed downward by a wire end of a diameter greater than the height H of the passage through the marking sleeve. The outer legs 1 and 2 of the sleeve will then be pressed outward by the wire end.
10
When a wire which is relatively thick in relation to the area of the tunnel-shaped passage is guided through» appreciable resistance to the wire being guided through can be encountered. The reason for this is inter alia that the wire end has to "plough its way" through the sleeve* the relatively soft material of which is pressed outward only directly in front of the end of the wire.
In order to facilitate guiding-through of the wire* a sleeve according to the invention isj as 1lustrated in Figs- 1 and 2, made with a number of longitudinal grooves which form deformation indications which facilitate deformation of the sleeve in connection with threading onto a wire- By making use of such longitudinal groovesj it has been possible to establish that the material of the sleeve in front of the wire end tends to be pressed outward further in front of the wire end than in the case of a sleeve which has no grooves. This means that the friction forces in particular toward the front portion of the wire are reducedi which facilitates threading-on.
11.
Figs, 1 and 2 show an embodiment which is preferred according to the invention, in which the outer legs 1 and 2 are each provided with three longiudinal grooves 9» 10 and 11i of which the groove 10 runs essentially along a center line of each leg, while the other two grooves 9 and 11, run along the upper end, respectively, lower edge of each leg. The outer legs 1 and 2 merge with respective inner legs 4, 5 via rounded portions 12* 13 which each leave a longitudinal groove 14 along their lower part-The inner legs 4, 5 are each provided with two grooves on the mutually facing surfaces, which grooves run along the upper end * respectively, lower edge of each leg.
Fig 3 shows a marking sleeve according to Fig- 1 during threading onto a wire 17 of a diameter which is considerably greater than the height H of the passage through the sleeve- In this connection, as can be seen, the inner yoke-shaped part with its web portion 6, which serves as a support surface for the wire, has been prssed downward while the outer legs 1, 2 of the sleeve have been bent out. By means of the grooves shown, this deformation of the sleeve is simplified, and a shape we11 adapted
12-
to the wire 17 is obtained in the deformed state as well. Even a wire of the diameter shown can therefore be pushed through the marking sleeve relatively easily, at the same time as the sleeve will be secured firmly on the wire after it has been guided into the desired position-
The embodiment shown comprises a number of grooves in the various legs. An appreciable effect can nevertheless already be obtained with a smaller number of grooves. It is therefore possible to make use of a groove which runs essentially centrally on each leg and is suitably complemented by a groove in each of the rounded portions which interconnect the respective pairs of legs.
The exact shape of the grooves and also their positioning can be varied as desired as long as they perform the function of bringing about weakenings which serve as deformation indications and facilitate threading of the sleeve onto a wire but do not appreciably worsen the grip around the wire? when the sleeve is located in the desired position on it.
7
We Claim
. A device for marking wires or pipes, in particular electric wires, comprising one of an annular and sleeve shaped body configured with an elastic material in one piece, the body being intended to bear one or more marking symbols, and comprises a yoke-shaped outer part having two outer legs (1, 2) which serve as side walls, the lower ends of the side walls merge with an inner yoke-shaped part, having two inner legs (4, 5), the inner yoke - shaped part upwardly extends between the outer legs (1,2), the two inner legs (4, 5) and a web portion (6) joining the upper ends of the parts, the web portion (6) together with the yoke - shaped outer part, delimits a tunnel - shaped passage purposive for insertably guiding therethrough the markable wires or pipes, characterized in that the outer surface of each of the outer legs (1, 2) is provided with at least one longitudinal groove (9, 10, 11) and in that the mutually facing surfaces of each of the inner legs (4, 5) are configured with at least one longitudinal groove (15,16), the grooves forming at least one deformation indication which facilitates deformation of the annular or sleeve - shaped body, when at least one wire (17) or a pipe is guided through the tunnel -shaped passage.
The device as claimed in claim 1, wherein the transition between each outer and inner leg (1, 2; 4, 5) is circular, and wherein a longitudinal groove (14) runs on the outer surface of the circle.
8
3. The device as claimed in claim 1 or 2, wherein the transition between each outer and inner leg (1, 2; 4, 5) is circular, and wherein a longitudinal groove (11, 16) runs on each side of the circle essentially at the transition zone between the circle and the respective leg.
4. The device as claimed in claim 2 or 3, wherein the outer surface of each of the outer legs (1, 2) is provided with a first longitudinal groove (10) essentially In the middle of the teg (1, 2) and a second longitudinal groove (9) along the upper edge of the leg (1, 2), and wherein the mutually facing surfaces of each of the inner legs (4, 5) are additionally provided with a third longitudinal groove (15) along the upper edge of the leg (4, 5).
DATED THIS 31st DAY OF JANUARY 2003
The invention relates to a marking sleeve for marking wires or pipes in the form of an annular or sleeve-shaped body manufactured in one piece and made of an elastic material. The marking sleeve is intended to bear one or more marking symbols and comprises a yoke-shaped outer part with two outer legs (1,2) which serve as side walls. At their lower ends, these legs (1,2) merge with an inner yoke-shaped outer part, which extends up between the legs (1,2) with two inner legs (4,5) and a web portion joining the upper ends of these (4,5). This web portion (6), together with the surrounding yoke-shaped outer part, delimits a tunnel-shaped passage for a wire which is to be marked. The outer surface of each of the outer legs is made with at least one longitudinal groove (9, 10, 11) and the mutually facing surfaces of each of the inner legs (4,5) are made with at least one longitudinal grooves (15, 16).

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Patent Number

208394

Indian Patent Application Number

00126/KOLNP/2003

PG Journal Number

30/2007

Publication Date

27-Jul-2007

Grant Date

26-Jul-2007

Date of Filing

31-Jan-2003

Name of Patentee

PARTEX MARKING SYSTEMS AB,

Applicant Address

SWEDEN, BOX 80, S-54722, GULLSPANG

Inventors:

#	Inventor's Name	Inventor's Address
1	MELLGREN GUNNAR	GRENADJARSGATAN 9, S-54791 GULLSPANG

PCT International Classification Number

H 01 B 13/34

PCT International Application Number

PCT/SE01/01716

PCT International Filing date

2001-08-07

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	0002848.0	2000-08-08	Sweden