EP1725381A1 - Pliers for cutting plastic tubes - Google Patents
Pliers for cutting plastic tubesInfo
- Publication number
- EP1725381A1 EP1725381A1 EP05730725A EP05730725A EP1725381A1 EP 1725381 A1 EP1725381 A1 EP 1725381A1 EP 05730725 A EP05730725 A EP 05730725A EP 05730725 A EP05730725 A EP 05730725A EP 1725381 A1 EP1725381 A1 EP 1725381A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- lever
- tube
- notches
- pliers
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
- B26D3/169—Hand held tube cutters
Definitions
- the invention relates to pliers for cutting plastic tubes.
- plastic tubes In many cases, it is necessary to be able to cut plastic tubes very precisely and very clearly.
- it is a matter of being able to cut a large quantity of tubes in a relatively short time, but still with the required precision. Under such conditions, it turns out to be insufficient both in terms of precise cutting and in terms of cutting speed, to want to cut such tubes using a saw or using cutting pliers resembling pruning shears.
- plastic tubes are used in an electrical installation as cable sheaths, it is a matter of being able to cut tubes of different diameters.
- the object of the invention is to provide pliers for cutting plastic tubes, which combines the advantage of rapid and precise cutting with that of cutting tubes of different diameters.
- the object of the invention is achieved with pliers for cutting plastic tubes, which comprises a first and a second lever on a pivot axis allowing them to be pivoted relative to each other between a position open to receive a tube to be cut and a closed position at the end of the cut.
- the first lever is provided with notches of different widths, each of which is intended to receive a tube of corresponding diameter.
- the second lever supports a blade.
- the clamp comprises a wheel pivotally mounted on the first lever.
- the pliers of the invention may also have at least one of the following two additional characteristics: - the blade has two successive cutting edges forming a point between them; the blade is therefore a pointed blade with an obtuse angle; - The width of each of the notches is less than the diameter of the tube it is intended to receive. Either of the two additional features set out above contributes in its own way to further facilitate the work with the pliers of one invention. Indeed, the use of a pointed blade makes it possible to initiate the cutting of the tube at a point on the circumference of the tube and to continue from this point by cutting the tube in two opposite directions.
- the invention also also relates to the following characteristics, considered in isolation or in all their technically possible combinations: - the wheel is constituted by two discs which are parallel to each other and mounted axially spaced from one another on the same axis of rotation housed in the first lever, the axis of rotation being oriented parallel to the pivot axis of the levers; each disc has as many pins as notches, the pins being intended to cooperate with two holes made in the lever, to mark a stop position of the wheel for each notch; the first lever comprises two branches between which the wheel is rotatably mounted, each of the two branches ends beyond the axis of rotation of the two discs by an end of branch provided with a hole; and each disc is provided with as many pins as notches, each of the pins being intended to cooperate with the hole at the end of the corresponding branch to mark a stop position of the wheel for the chosen notch; - The discs are mounted on the axis of rotation so that they can be tilted slightly towards each other, against one return force.
- FIG. 1 shows a clamp according to the invention in the open position
- FIG. 2 shows the clamp of FIG. 1 in the closed position
- FIG. 3 shows the start of the insertion of a tube into a clamp according to the invention
- Figure 4 shows the start of a tube cut with a clamp according to the invention
- Figure 5 shows the clamp of Figure 2 in a view perpendicular to its pivot axis.
- the pliers of the invention which is designed to cut plastic tubes, and which is shown in Figure 1 in the open position and in Figure 2 in the closed position, has a first lever 1 and a second lever 2.
- the two levers are hinged together on a pivot axis 3 which allows them to be pivoted relative to each other between an open position to receive a tube which must be cut and a closed position at the end of a cutting.
- the first and second levers 1, 2 are advantageously constituted by metal profiles folded longitudinally substantially in the shape of a U. These profiles, one of which is narrower than the other, are engaged one inside the other and articulated on the pivot axis 3. While the second lever 2 supports a blade 5 having two successive cutting edges 51, 52 forming a point 53 between them, the first lever 1 supports a wheel 4 provided with three notches 41, 42, 43 each having a different width d and intended to receive a tube of diameter D which must be cut.
- the width d of each of these notches is slightly less than the diameter D of the tube to which each notch is assigned. Due to this conception of the invention, the cutting of a tube essentially takes place in two stages.
- the first step consists of placing a tube on the inlet of the corresponding notch, followed by the insertion of the tube into the notch by the blade, accompanied by local deformation of the tube.
- the second step consists in cutting the tube.
- the wheel 4 is constituted by two discs 44, 45 which are parallel to each other and which are mounted axially spaced from one another on the same axis of rotation 11.
- the axis 11 is housed in the first lever 1, more precisely in each of two branches 14, 15 with which the first lever 1 ends.
- the axis of rotation 11 is oriented parallel to the pivot axis 3 of the levers 1, 2.
- the two discs 44, 45 are each provided with three pins 46 obtained by stamping.
- the pins 46 extend in the direction of the corresponding branch of the lever 1, namely the pins 46 of the disc 44 are oriented towards the branch 14 of the lever 1 and the pins 46 of the disc 45 are oriented towards the branch 13 of the lever 1.
- Each of the two branches 13, 14 of the lever 1 ends beyond the axis of rotation 11 of the two discs 44, 45 by an end of branch 16, 17.
- the lever 1 ends in two L-shaped branches 13, 14 whose transverse part with respect to the general extent of the lever 1 constitutes the end of branch 16, 17.
- each of these branch ends 16, 17 is provided with 'A hole 12, 13 with which cooperates one of the three pins 46 of each of the discs 44, 45 to mark a stop position of the wheel 4 for the selected notch.
- the pin 46 of the disc 44, engaged in the hole 12 of the end of branch 16 of the lever 1 is the one which ensures the exact positioning of the notch 42 of the wheel 4. It is followed, in a clockwise direction, by the pin 46 ensuring the exact positioning of the notch 41 and then by the pin 46 ensuring the exact positioning of the notch 43.
- the particular shape of the discs 44, 45 which rather suggests a star constellation of three branches, can be replaced, without departing from the principle of the present invention, by two discs having a circular circumference CC, as shown in Figure 2 in broken lines.
- a locking means 21 which is here in the form of a pivoting latch 22 mounted on the lever 2 and a corresponding notch 23 formed in the lever 1.
- the pliers according to the invention finally comprises, for the protection of the hands and in order to be able to grasp the pliers more easily, plastic sleeves 31, 32 provided with flat protrusions 33, 34 intended mainly to protect the hand in the event of small incidents during the cutting of a tube.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
- Knives (AREA)
- Details Of Cutting Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0402504A FR2867407B1 (en) | 2004-03-10 | 2004-03-10 | CLAMP FOR CUTTING TUBES OF PLASTIC MATERIAL |
PCT/FR2005/000410 WO2005097435A1 (en) | 2004-03-10 | 2005-02-22 | Pliers for cutting plastic tubes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1725381A1 true EP1725381A1 (en) | 2006-11-29 |
EP1725381B1 EP1725381B1 (en) | 2009-09-30 |
Family
ID=34896439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05730725A Not-in-force EP1725381B1 (en) | 2004-03-10 | 2005-02-22 | Pliers for cutting plastic tubes |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070289140A1 (en) |
EP (1) | EP1725381B1 (en) |
JP (1) | JP2007527761A (en) |
AT (1) | ATE444145T1 (en) |
DE (1) | DE602005016902D1 (en) |
FR (1) | FR2867407B1 (en) |
WO (1) | WO2005097435A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8627752B2 (en) * | 2009-12-16 | 2014-01-14 | William Saad | Tool for cutting ceiling tile grid stock and method of cutting using the tool |
US20170136645A1 (en) * | 2014-11-12 | 2017-05-18 | Jeffrey A. White | TUBE CUTTING and INSTALLATION TOOL |
TWM534671U (en) * | 2016-09-23 | 2017-01-01 | Hanlong Industrial Co Ltd | Pipe-cutter |
CN115488932A (en) * | 2021-06-18 | 2022-12-20 | 杭州巨星科技股份有限公司 | Multifunctional pipe cutter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US560524A (en) * | 1896-05-19 | Wire-stripping tool | ||
US20387A (en) * | 1858-05-25 | Peters | ||
US2968096A (en) * | 1960-02-29 | 1961-01-17 | Bonito Vincent | Wire stripping tool |
US3543616A (en) * | 1968-03-21 | 1970-12-01 | Marion W Bradley | Slitter and insulation for tape-type wire |
JPS5913013U (en) * | 1982-07-14 | 1984-01-26 | 株式会社コムラ製作所 | tube cutter |
JPS60117020U (en) * | 1984-01-18 | 1985-08-07 | 株式会社 潤工社 | tube ivy |
CA2184444A1 (en) * | 1995-09-07 | 1997-03-08 | Fiberstars Incorporated | Hand-held severing device |
FR2843904B1 (en) * | 2002-08-28 | 2005-04-29 | Pierre Grehal Et Cie Ets | ASSEMBLY FOR CUTTING A LONGILINE MATERIAL OF TRUNCONS OF A PREDETERMINED LENGTH |
-
2004
- 2004-03-10 FR FR0402504A patent/FR2867407B1/en not_active Expired - Lifetime
-
2005
- 2005-02-22 US US10/598,704 patent/US20070289140A1/en not_active Abandoned
- 2005-02-22 JP JP2007502363A patent/JP2007527761A/en active Pending
- 2005-02-22 EP EP05730725A patent/EP1725381B1/en not_active Not-in-force
- 2005-02-22 WO PCT/FR2005/000410 patent/WO2005097435A1/en active Application Filing
- 2005-02-22 DE DE602005016902T patent/DE602005016902D1/en active Active
- 2005-02-22 AT AT05730725T patent/ATE444145T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2005097435A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2867407A1 (en) | 2005-09-16 |
FR2867407B1 (en) | 2006-05-05 |
US20070289140A1 (en) | 2007-12-20 |
DE602005016902D1 (en) | 2009-11-12 |
EP1725381B1 (en) | 2009-09-30 |
ATE444145T1 (en) | 2009-10-15 |
WO2005097435A1 (en) | 2005-10-20 |
JP2007527761A (en) | 2007-10-04 |
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