EP0146603A1 - Cutting device for stripping layers of cables and similar products - Google Patents
Cutting device for stripping layers of cables and similar productsInfo
- Publication number
- EP0146603A1 EP0146603A1 EP19840902360 EP84902360A EP0146603A1 EP 0146603 A1 EP0146603 A1 EP 0146603A1 EP 19840902360 EP19840902360 EP 19840902360 EP 84902360 A EP84902360 A EP 84902360A EP 0146603 A1 EP0146603 A1 EP 0146603A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- base plate
- knife
- cutting device
- stripping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1204—Hand-held tools
- H02G1/1229—Hand-held tools the cutting element making a longitudinal, and a transverse or a helical cut
Definitions
- the invention relates to a cutting device for stripping layers of cables and similar products comprisin a plurality of knives for stripping different layers.
- the device according to the invention can be used mainly during preparing a power cable before mounting.
- the power cables comprise in general an outer mantle, a plurality of thin copper wires under the mantle, a hard semiconductor layer under the copper wires and an insulating layer covering current conductors under thensmiconductor layer.
- the cable ends should be placed in a special connecting element. Por placing it is required to strip the mantle and partly the semiconductor layer wherein a transient part with gradually diminishing diameter has to be cut in the semiconductor layer between the stripped and non-stripped parts thereof.
- the stripped part should be characterised with high surface quality in order to ensure the possibility of connecting the element and the layer with absence of air bubbles.
- the mantle can be stripped either after longitudinal cutting when its material is soft, or after transverse and/or helical cutting when it is made of hard material.
- several solutions and a plurality of apparata are known for stripping and cutting the outer insulating layer(s) of cables. These can be classified into different groups, thus, there are devices cutting longitudinally, transversely and helically; the majority are hand-tools.
- Several versions of said solutions are specified in different publications, e.g. in the DE-OS 2139 196 or US-PS 3 881249, these having been developed as some version according to the aforementioned groups.
- a more progressive solution is also known, e.g.
- This device comprises a knife which can be turned in a frame with a grip and can be regulated by displacement in the longitudinal direction for annular and helical stripping, while on the outer surface of the frame there is an encased knife extending for longitudinal cutting.
- the invention relates to a cutting device for stripping the layers of cables and similar products, comprising a handle, a frame fixed in the handle, knives regulatable and adjustable in the frame for stripping an outer layer by longitudinal, transverse and helical cutting and a guiding element on a rod arranged in the frame, having a base plate arranged turnable and adjustable around an axle transverse to the longitudinal axle of the rod and two discs for longitudinal supporting the product with layers to be cut at the base platent further knife for stripping an inner layer (e.g. the semiconductor layer) along a spiral path, arranged turnable in the frame oppositely to the rod, a fork, connected to the bas plate and two rollers arranged parallel to the discs on the fork and means for adjusting the distance between the knife and the base plate.
- a cutting device for stripping the layers of cables and similar products, comprising a handle, a frame fixed in the handle, knives regulatable and adjustable in the frame for stripping an outer layer by longitudinal, transverse and helical cutting and a guiding element on
- the knife is arranged in a turnable disc equipped with means for longitudinal adjusting the position of the kiive and/or the rod is connected to a regulator for altering the distance of the base plate from and the anglemposition thereof relatively to the frame. It is proposed for better tooling the semiconductor layer fork be connected to the base plate turnable around an axle parallel with the axle of the rollers and be equipped with an adjusting element supported on an arched end thereof, and/or the knife have an arched cutting edge.
- the main advantage of the solution according to the invention lies in that by using a single simple manual cutting device, in addition to the removal of the outer insulating layer(s) it is rendered suitable also for cutting hard semiconductor layer(s) and it is possible to prepare the matching part of the product with properly dimensioned and bevelled surface as required by the connecting element.
- Further features of the invention will become apparent from the enclosed description of a prefered, though not exclusive, embodiment thereof, illustrated by way of example and not of limitation in the accompanying drawings, which show in Figure 1 a side-view of the cutting tool, partly in view, partly in section, Figure 2 a rear elevation of the cutting tool with the knife on the side face, and in Figure 3 one end of the base plate.
- device according to the invention i.e.
- the so-called cable-stripping pliers have on one end of a frame 10 a handle 12.
- a knife 14 can be lowered corresponding to the thickness of a hard insulating layer for transverse cutting and can be turned at an optional angle for helical cutting if required.
- a knife 16 is lowered into the frame 10 for cutting a soft insulating layer in longitudinal direction and it is provided with fixing means for the cutting process.
- a knife 18 with a knife-holder 22 is fixed in a longitudinally adjustable manner. The cone angle of the knife 18 is formed in accordance with the requirements set to the different cables with layers to be cut.
- a rod 26 in the bore of the handle 12 is formed with a key-groove 28, while for turning at an optional angle, a rod regulator 30 is provided with known mechanical elements.
- a base plate 32 fixed onto the end of the rod 26 guides the cable thus clamped according to the requirements of the cutting process.
- discs 34 are mounted on arms 36 and can be brought into two extreme positions.
- the cutting tool according to the invention is rotated with the hand on the cable for performing the cutting process and for matching to the cable elements.
- the device according to the invention solves the tasks set according to requirements, its applicability was proved in practice, manipulation can be easily learned.
Landscapes
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
Un dispositif de coupe pour dénuder les gaines de câbles et autres produits similaires comprend une poignée (12), un cadre (10) fixé à la poignée (12), des couteaux (14, 16) réglables et ajustables dans le cadre (10) pour dénuder une couche externe par découpage longitudinal, transversal et hélicoïdal, et un élément de guidage sur une tige (26) disposée dans le cadre, l'élément de guidage ayant une plaque de base (32) pouvant tourner et réglable autour d'un axe transversal à l'axe longitudinal de la tige (26), ainsi que deux disques (34) servant de support longitudinal au produit et aux couches à découper au niveau de la plaque de base (32). Le dispositif de coupe comprend selon l'invention un autre couteau (18) pour dénuder une couche interne le long d'un chemin en spirale, et pouvant tourner dans le cadre (10) à l'opposé de la tige (26), une fourche (42) reliée à la plaque de base (32) et deux galets (38) parallèles aux disques (34) sur la fourche (42), et des moyens pour régler la distance entre le couteau (18) et la plaque de base (32). Le dispositif peut dénuder des gaines différentes répondant à des besoins et des caractéristiques différents.A cutting device for stripping cable sheaths and the like comprises a handle (12), a frame (10) fixed to the handle (12), knives (14, 16) adjustable and adjustable in the frame (10) for stripping an outer layer by longitudinal, transverse and helical cutting, and a guide element on a rod (26) arranged in the frame, the guide element having a base plate (32) which can be rotated and adjustable around a axis transverse to the longitudinal axis of the rod (26), as well as two discs (34) serving as longitudinal support for the product and the layers to be cut at the base plate (32). According to the invention, the cutting device comprises another knife (18) for stripping an inner layer along a spiral path, and which can rotate in the frame (10) opposite the rod (26), a fork (42) connected to the base plate (32) and two rollers (38) parallel to the discs (34) on the fork (42), and means for adjusting the distance between the knife (18) and the base plate (32). The device can strip different sheaths meeting different needs and characteristics.
Description
CUTTING DEVICE FOR STRIPPING LAYERS OF CABLES AND SIMILAR PRODUCTS
The invention relates to a cutting device for stripping layers of cables and similar products comprisin a plurality of knives for stripping different layers.
The device according to the invention can be used mainly during preparing a power cable before mounting.
As it is known, the power cables comprise in general an outer mantle, a plurality of thin copper wires under the mantle, a hard semiconductor layer under the copper wires and an insulating layer covering current conductors under thensmiconductor layer. When connecting two sections of power cables for preparing a power line the cable ends should be placed in a special connecting element. Por placing it is required to strip the mantle and partly the semiconductor layer wherein a transient part with gradually diminishing diameter has to be cut in the semiconductor layer between the stripped and non-stripped parts thereof. The stripped part should be characterised with high surface quality in order to ensure the possibility of connecting the element and the layer with absence of air bubbles.
The copper wires don't have to be stripped, it serves for localizing the defects of the cable.
The mantle can be stripped either after longitudinal cutting when its material is soft, or after transverse and/or helical cutting when it is made of hard material.
According to the prior art several solutions and a plurality of apparata are known for stripping and cutting the outer insulating layer(s) of cables. These can be classified into different groups, thus, there are devices cutting longitudinally, transversely and helically; the majority are hand-tools. Several versions of said solutions are specified in different publications, e.g. in the DE-OS 2139 196 or US-PS 3 881249, these having been developed as some version according to the aforementioned groups. A more progressive solution is also known, e.g. from the WO 83/01530 published on 14th April, 1983, which enables the performance of cutting in all of the three mentioned directions with the aid of a hand-tool. This device comprises a knife which can be turned in a frame with a grip and can be regulated by displacement in the longitudinal direction for annular and helical stripping, while on the outer surface of the frame there is an encased knife extending for longitudinal cutting.
By using said knife the aforementioned operations can be faultlessly and easily performed in a short time after a short training period. However, to promote economical production, in course of developing cable techuics, newer products has found application which contain one or more hard semiconductor layers beneath the insulating layer. For cutting and processing the sane, cutting to size, forming and surfaces at a determined angle and for matching to the connecting element, extremely complicated and expensive devices were experimentally developed. However, none of them have met the requirements.
The aim of the invention is to eliminate the deficiencies of the prior art and to develop a cutting hand-tool, which in addition to the removal of the outer insulating layer of cables and similar products within strict tolerances, is well suited for cutting and matching processes.
Accordingly, the invention relates to a cutting device for stripping the layers of cables and similar products, comprising a handle, a frame fixed in the handle, knives regulatable and adjustable in the frame for stripping an outer layer by longitudinal, transverse and helical cutting and a guiding element on a rod arranged in the frame, having a base plate arranged turnable and adjustable around an axle transverse to the longitudinal axle of the rod and two discs for longitudinal supporting the product with layers to be cut at the base platent further knife for stripping an inner layer (e.g. the semiconductor layer) along a spiral path, arranged turnable in the frame oppositely to the rod, a fork, connected to the bas plate and two rollers arranged parallel to the discs on the fork and means for adjusting the distance between the knife and the base plate.
It is a very advantageous embodiment, wherein the knife is arranged in a turnable disc equipped with means for longitudinal adjusting the position of the kiive and/or the rod is connected to a regulator for altering the distance of the base plate from and the anglemposition thereof relatively to the frame. It is proposed for better tooling the semiconductor layer fork be connected to the base plate turnable around an axle parallel with the axle of the rollers and be equipped with an adjusting element supported on an arched end thereof, and/or the knife
have an arched cutting edge.
The main advantage of the solution according to the invention lies in that by using a single simple manual cutting device, in addition to the removal of the outer insulating layer(s) it is rendered suitable also for cutting hard semiconductor layer(s) and it is possible to prepare the matching part of the product with properly dimensioned and bevelled surface as required by the connecting element. Further features of the invention will become apparent from the enclosed description of a prefered, though not exclusive, embodiment thereof, illustrated by way of example and not of limitation in the accompanying drawings, which show in Figure 1 a side-view of the cutting tool, partly in view, partly in section, Figure 2 a rear elevation of the cutting tool with the knife on the side face, and in Figure 3 one end of the base plate. As becomes clear from figure 1, device according to the invention, i.e. the so-called cable-stripping pliers have on one end of a frame 10 a handle 12. In the frame 10 a knife 14 can be lowered corresponding to the thickness of a hard insulating layer for transverse cutting and can be turned at an optional angle for helical cutting if required. On the outer surface of the frame 10 a knife 16 is lowered into the frame 10 for cutting a soft insulating layer in longitudinal direction and it is provided with fixing means for the cutting process. On one side of the frame 10, in a disc 24 - which can be turned by means of a pivot 20 (Fig. 2) - a knife 18 with a knife-holder 22 is fixed in a longitudinally adjustable
manner. The cone angle of the knife 18 is formed in accordance with the requirements set to the different cables with layers to be cut. By turning the disc 24 by 90° removal of the outer insulating layer can be performed in the usual way. A rod 26 in the bore of the handle 12 is formed with a key-groove 28, while for turning at an optional angle, a rod regulator 30 is provided with known mechanical elements. As a a consequence, a base plate 32 fixed onto the end of the rod 26 guides the cable thus clamped according to the requirements of the cutting process. On the base plate 32 discs 34 are mounted on arms 36 and can be brought into two extreme positions. On the other end of the base plate 32 there ia a fork 42 with rollers 38 arranged parallel to the discs 34. On the end of the fork 42 there is an arched path 50 wherein a screw 44 can be slipped for the accurate adjustment of the rollers 38 around a pivot 40. The vertical positioning of the rod 26 is possible by means of a spring and a fixing element; both for stripping the outer insulating layer of the cable and internal cutting, the cable can be led to the knife in a most advantageous manner.
Essentially, similarly to the removal of the outer insulating layer, the cutting tool according to the invention is rotated with the hand on the cable for performing the cutting process and for matching to the cable elements.
The device according to the invention solves the tasks set according to requirements, its applicability was proved in practice, manipulation can be easily learned.
Claims
1. Cutting device for stripping layers of cables and similar products, comprising a handle, a frame fixed in the handle, knives regulatable and adjustable in the frame for stripping an outer layer by longitudinal, transverse and helical cutting and guiding element on a rod arranged in the frame, the guiding element having a base plate arranged turnable and adjustable around an axle transverse to the longitudinal axle of the rod and two discs for longitudinal supporting the product with layers to be cut at the base plate, ch ar a c t e r i s e d i n comprising a further knife (18) for stripping an inner layer along a spiral path, arranged turnable in the frame (10) oppositely to the rod (26), a fork (42) connected to the bass plate (32) and two rollers (38) arranged parallel to the discs (38) on the fork (42) and means for adjusting the distance between the knife (18) and the base plate (32).
2. Cutting device according to claim 1, wh er e i n the knife (18) is arranged in a turnable disc (24) equipped with means for longitudinal adjusting the position of the knife (18).
3. Cutting device according to claim 1 or 2, wh e r e i n the rod (26) is connected to a regulator (30) for altering the distance of the base plate (32) from and the angle position thereof relatively to the frame (10).
4. Cutting device according to any precedent claim, wh erein the fork (42) is connected to the base plate (32) turnable around an axle parallel with the axle of the rollers (38) and is equipped with an adjusting element supported on an arched end (50) of the fork (42).
5. Cutting device according to any precedent claim, w h e r e i n the knife (38) has an arched cutting edge.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU193583A HU190099B (en) | 1983-05-31 | 1983-05-31 | Cutting device for removing layers of cables and similar products |
| HU193583 | 1983-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0146603A1 true EP0146603A1 (en) | 1985-07-03 |
Family
ID=10956910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19840902360 Withdrawn EP0146603A1 (en) | 1983-05-31 | 1984-05-29 | Cutting device for stripping layers of cables and similar products |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0146603A1 (en) |
| HU (1) | HU190099B (en) |
| WO (1) | WO1984004856A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8502980D0 (en) * | 1985-06-17 | 1985-06-17 | Weidmueller C A Gmbh Co | AVISOLERINGSAPPARAT |
| DE20001824U1 (en) * | 2000-02-02 | 2000-05-04 | Liu Lien Huang | Cable stripping device |
| CN106253156B (en) * | 2016-08-17 | 2017-09-19 | 山东太古飞机工程有限公司 | Air electronics cable sheath stripping unit |
| CN117559304B (en) * | 2023-11-17 | 2024-04-12 | 国网安徽省电力有限公司霍邱县供电公司 | High-voltage electrified electric wire stripper with high safety |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1640645B1 (en) * | 1966-10-28 | 1971-04-29 | Josef Krampe | DEVICE FOR DEPOSITING CABLE AND LINE ENDS |
| JPS4843702B1 (en) * | 1966-11-29 | 1973-12-20 | ||
| GB1432238A (en) * | 1973-04-03 | 1976-04-14 | Utility Tool Corp | Cutting member for severing covering material from electric cables device for automatic adjustment of the amplitude of alternating |
| US3881249A (en) * | 1974-06-05 | 1975-05-06 | Ideal Ind | Cable stripper |
| JPS5936095Y2 (en) * | 1974-07-24 | 1984-10-05 | カブシキガイシヤ イズミセイキセイサクシヨ | Electric wire coating stripping tool |
| DE2624594C3 (en) * | 1976-05-28 | 1979-09-06 | Aeg-Telefunken Kabelwerke Ag, Rheydt, 4050 Moenchengladbach | Device for cutting cable sheaths |
| HU186428B (en) * | 1981-10-06 | 1985-07-29 | Lajos Szvetnik | Cutting device for removing the outer insulating layer of cables and similar products |
-
1983
- 1983-05-31 HU HU193583A patent/HU190099B/en unknown
-
1984
- 1984-05-29 EP EP19840902360 patent/EP0146603A1/en not_active Withdrawn
- 1984-05-29 WO PCT/HU1984/000035 patent/WO1984004856A1/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8404856A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| HU190099B (en) | 1986-08-28 |
| HUT36002A (en) | 1985-08-28 |
| WO1984004856A1 (en) | 1984-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19850705 |