EP1017517A1 - A method for punching and a punch die - Google Patents

A method for punching and a punch die

Info

Publication number
EP1017517A1
EP1017517A1 EP98928737A EP98928737A EP1017517A1 EP 1017517 A1 EP1017517 A1 EP 1017517A1 EP 98928737 A EP98928737 A EP 98928737A EP 98928737 A EP98928737 A EP 98928737A EP 1017517 A1 EP1017517 A1 EP 1017517A1
Authority
EP
European Patent Office
Prior art keywords
punch
holes
die
wall
punched
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
Application number
EP98928737A
Other languages
German (de)
French (fr)
Other versions
EP1017517B1 (en
Inventor
Pervi Carlsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PM Teknik HB
Original Assignee
PM Teknik HB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PM Teknik HB filed Critical PM Teknik HB
Publication of EP1017517A1 publication Critical patent/EP1017517A1/en
Application granted granted Critical
Publication of EP1017517B1 publication Critical patent/EP1017517B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/14—Punching tools; Punching dies

Definitions

  • the present invention relates to a method of the kind defined in the preamble of Claim 1, and according to a second aspect to a punch die for use when carrying out the method.
  • Holes can normally be punched in a workpiece with no difficulty, provided that the holes shall be punched through a part of the workpiece where both sides of said are freely accessible from outside the workpiece, for instance when holes are to be punched in sheet material.
  • the sheet, plate or strip is then laid against a fixed support surface that includes punch cavities and a punch-carrying tool is positioned with the punches opposite the punch cavities and pressed down against the sheet and therewith punch-out the holes .
  • the insertion of a die between the two walls of the workpiece provides an anvil means which fills out the space between said walls and provides support for the wall as it is met by the punch.
  • the anvil means enables the hole or holes to be punched without deforming the wall.
  • the method can be applied for punching-out a single hole, it is primarily advantageous for use when punching-out a plurality of holes simultaneously in the wall of the workpiece. This constitutes a preferred embodiment of the inventive method.
  • punching of the holes is carried out in two stages, wherein the holes are punched in the second wall after having removed the die.
  • the punches move down through the holes made in the first wall.
  • the aforesaid object is achieved with a punch die constructed in accordance with Claim 4.
  • the inventive die enables the inventive method to be carried out.
  • Fig. 1 is a perspective view of a workpiece in which holes have been punched in accordance with the invention
  • Fig. 2 illustrates the problem addressed by the present invention
  • Fig. 3 is a cross-sectional view of a workpiece and illustrates a first step of an inventive method
  • Fig. 4 is a cross-sectional view corresponding to Fig. 3 and illustrating a second step of an inventive method
  • Fig. 5 is a sectional view of the workpiece shown in Fig. 3, taken perpendicular to the section in Fig. 3;
  • Fig. 6 illustrates a measure taken between the steps illustrated in Figs. 3 and 4.
  • Shown in Fig. 1 is a workpiece 1 in the form of a two-wall elongated strip having a bottom wall 2 and a top wall 3 in which respective rows of holes 10, 4 have been punched.
  • the illustrated workpiece may be made of aluminium, for instance.
  • Fig. 2 illustrates the difficulty of punching holes in such a workpiece. If the workpiece is simply clamped to the work table of the punching machine, the upper wall 3 will not be supported and the punch 5 will deform the wall 3 as it punches holes therein. The disc punched from the workpiece will remain on the bottom wall and present an obstacle to continued punching.
  • Figs. 3 and 5 illustrate the manner in which holes are punched in the upper wall 3 of the workpiece 1 in accordance with the invention.
  • a die 8 is inserted in the space between the two walls 2, 3, so as to support the upper wall 3.
  • the upper side of the die 8 is provided with punch cavities 7a,
  • the die is positioned so that the punch cavities are located centrally of respective punches 5a, 5b etc.
  • the die thus functions as an effective anvil means, therewith enabling the holes 4 to be punched readily in the upper wall
  • the length of stroke of the punches must be limited in the first punching operation, so that the discs punched from the workpiece will not be pressed firmly into the die cavities and become fixed therein.
  • the die 8 is withdrawn form the workpiece 1 in the direction of the arrow A shown in Fig. 6. Holes can now be punched in the bottom wall, wherewith a punch moves down through a respective hole that has already been punched in the upper wall 3.
  • the discs punched from the holes 7a, 7b etc. are removed from the die 8, for instance with the aid of compressed air, and the die 8 then inserted into the new workpiece .
  • Withdrawal and insertion of the die 8 may, of course, be controlled automatically or effected purely manually.
  • a punch die that is common for all holes to be punched in the upper wall 3. It is also conceivable, however, to use two (or more) shorter units and to insert a die into the workpiece from each direction.
  • the invention is primarily conceived for punching holes in a workpiece of the illustrated appearance, it will be apparent that the invention can also be applied with work- pieces that have lateral extensions in two directions where the holes are distributed over one surface instead of along a strip.
  • the invention can also be applied in respect of work- pieces in which only one hole shall be punched in its upper wall, and in respect of workpieces where holes shall be punched solely in one of the two walls.
  • the illustrated example can be readily modified for use when the two walls are angled to one another, i.e. not parallel. Neither is the inventive method restricted to square profiles, but can also be applied to U-profiles or to a double-wall workpiece in which the two walls are joined together solely at certain places .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)

Abstract

The invention relates to a method of punching one or more holes in a two-wall workpiece having mutually facing walls where one or more holes is/are to be punched in at least one wall. According to the method, there is inserted in the space between the walls a punch die that has a thickness corresponding essentially to the distance between the walls. The die includes one or more punch cavities. A punch tool having one or more punches is activated on the ouside of the wall subsequent to having moved the punch die to a position in which a punch cavity is located opposite its respective punch. The invention also relates to a punch die (8) for use when carrying out the method. The punch die (8) includes one or more punch cavities (7) and is adapted for insertion into the space between the wall (2, 3) of the two-wall workpiece (1).

Description

A METHOD FOR PUNCHING AND A PUNCH DIE
According to one aspect, the present invention relates to a method of the kind defined in the preamble of Claim 1, and according to a second aspect to a punch die for use when carrying out the method.
Holes can normally be punched in a workpiece with no difficulty, provided that the holes shall be punched through a part of the workpiece where both sides of said are freely accessible from outside the workpiece, for instance when holes are to be punched in sheet material. The sheet, plate or strip is then laid against a fixed support surface that includes punch cavities and a punch-carrying tool is positioned with the punches opposite the punch cavities and pressed down against the sheet and therewith punch-out the holes .
However, problems arise when holes are to be punched in a two-wall workpiece where the walls are spaced apart. An anvil surface for co-action with the punch tool during a punching operation cannot be easily achieved with a workpiece of this nature, due to the fact that the workpiece rests on one of its opposing walls. When attempting to punch holes in a workpiece of this nature, it is difficult to avoid deformation of the wall in which the holes are being punched,. This problem is, of course, dependent on the material from which the workpiece is comprised. Deformation is considerable in the case of certain soft metals, such as aluminium. It has therefore generally been considered impossible to punch holes in such two-wall workpieces made of certain soft metals, such as aluminium. The object of the present invention is to endeavour to overcome this problem and to provide a method which will enable holes to be punched in two-wall workpieces regardless of the material from which they are made.
This object has been achieved in accordance with the invention with a method of the kind defined in the preamble of Claim 1 and comprising the method steps set forth in the characterising clause of said Claim.
The insertion of a die between the two walls of the workpiece provides an anvil means which fills out the space between said walls and provides support for the wall as it is met by the punch. The anvil means enables the hole or holes to be punched without deforming the wall.
Although the method can be applied for punching-out a single hole, it is primarily advantageous for use when punching-out a plurality of holes simultaneously in the wall of the workpiece. This constitutes a preferred embodiment of the inventive method.
According to one preferred embodiment of the invention where holes are to be punched in both walls of the workpiece, punching of the holes is carried out in two stages, wherein the holes are punched in the second wall after having removed the die. When punching holes in the second wall of the workpiece, the punches move down through the holes made in the first wall. These embodiments and other advantageous embodiments of the inventive method are set forth in the Claims appended to Claim 1.
According to a second aspect of the invention, the aforesaid object is achieved with a punch die constructed in accordance with Claim 4. The inventive die enables the inventive method to be carried out.
The invention will now be described in more detail with reference to preferred embodiments thereof and also with reference to the accompanying drawings, in which
Fig. 1 is a perspective view of a workpiece in which holes have been punched in accordance with the invention;
Fig. 2 illustrates the problem addressed by the present invention;
Fig. 3 is a cross-sectional view of a workpiece and illustrates a first step of an inventive method;
Fig. 4 is a cross-sectional view corresponding to Fig. 3 and illustrating a second step of an inventive method;
Fig. 5 is a sectional view of the workpiece shown in Fig. 3, taken perpendicular to the section in Fig. 3; and
Fig. 6 illustrates a measure taken between the steps illustrated in Figs. 3 and 4. Shown in Fig. 1 is a workpiece 1 in the form of a two-wall elongated strip having a bottom wall 2 and a top wall 3 in which respective rows of holes 10, 4 have been punched. The illustrated workpiece may be made of aluminium, for instance.
Fig. 2 illustrates the difficulty of punching holes in such a workpiece. If the workpiece is simply clamped to the work table of the punching machine, the upper wall 3 will not be supported and the punch 5 will deform the wall 3 as it punches holes therein. The disc punched from the workpiece will remain on the bottom wall and present an obstacle to continued punching.
Figs. 3 and 5 illustrate the manner in which holes are punched in the upper wall 3 of the workpiece 1 in accordance with the invention. A die 8 is inserted in the space between the two walls 2, 3, so as to support the upper wall 3. The upper side of the die 8 is provided with punch cavities 7a,
7b etc., and the die is positioned so that the punch cavities are located centrally of respective punches 5a, 5b etc. The die thus functions as an effective anvil means, therewith enabling the holes 4 to be punched readily in the upper wall
3. In this case, the length of stroke of the punches must be limited in the first punching operation, so that the discs punched from the workpiece will not be pressed firmly into the die cavities and become fixed therein.
If holes are also to be punched in the bottom wall 2 of the workpiece, the die 8 is withdrawn form the workpiece 1 in the direction of the arrow A shown in Fig. 6. Holes can now be punched in the bottom wall, wherewith a punch moves down through a respective hole that has already been punched in the upper wall 3.
Prior to carrying out a corresponding operation on a following workpiece, the discs punched from the holes 7a, 7b etc., are removed from the die 8, for instance with the aid of compressed air, and the die 8 then inserted into the new workpiece .
Withdrawal and insertion of the die 8 may, of course, be controlled automatically or effected purely manually. In the illustrated example, there is used a punch die that is common for all holes to be punched in the upper wall 3. It is also conceivable, however, to use two (or more) shorter units and to insert a die into the workpiece from each direction.
Although the invention is primarily conceived for punching holes in a workpiece of the illustrated appearance, it will be apparent that the invention can also be applied with work- pieces that have lateral extensions in two directions where the holes are distributed over one surface instead of along a strip. The invention can also be applied in respect of work- pieces in which only one hole shall be punched in its upper wall, and in respect of workpieces where holes shall be punched solely in one of the two walls. The illustrated example can be readily modified for use when the two walls are angled to one another, i.e. not parallel. Neither is the inventive method restricted to square profiles, but can also be applied to U-profiles or to a double-wall workpiece in which the two walls are joined together solely at certain places .

Claims

1. A method of punching one or more holes in a two-wall workpiece where said walls are mutually interspaced, wherein the hole/holes is/are punched through at least the first of said walls, characterised by inserting between the walls a die whose thickness corresponds essentially to the distance between the walls, and activating a punch tool that carries one or more punches such as to punch a hole or holes in the first wall, subsequent to having moved the die to a position in which a punch cavity is located centrally opposite its respective punch.
2. A method according to Claim 1, in which a plurality of holes are punched simultaneously in said first wall, wherein the die has a plurality of punch cavities and the punch tool has a corresponding number of punches.
3. A method according to Claim 1 or 2 , in which the workpiece is an elongated metal strip of box-like cross- section, wherein the die is inserted into the box-like profile in the longitudinal direction of the strip.
4. A method according to any one of Claims 1-3, in which holes are also punched in the second of said walls, wherein subsequent to having punched the hole/holes in said first wall, the die is removed from said interspace and the hole/holes are punched in the second wall in a second punching operation in which the punch/punches moves/ move through the hole/holes punched in the first wall.
5. A punch die for use in a method according to any one of Claims 1-4, characterised in that the punch die is an element separate from a punch machine and is adapted for insertion into the space between the walls (2, 3) of a two-wall workpiece (1) in which a hole or holes (4) is/are to be punched, wherein the die (8) includes one or more punch cavities ( 7 ) .
6. A punch die (8) according to Claim 5, which has the form of an elongated rod of rectangular cross-section provided with a plurality of punch cavities (7) disposed along one of the long sides of said rod.
EP98928737A 1997-06-05 1998-06-02 A method for punching and a punch die Expired - Lifetime EP1017517B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9702153A SE512912C2 (en) 1997-06-05 1997-06-05 Procedure for punching and punching
SE9702153 1997-06-05
PCT/SE1998/001044 WO1998055244A1 (en) 1997-06-05 1998-06-02 A method for punching and a punch die

Publications (2)

Publication Number Publication Date
EP1017517A1 true EP1017517A1 (en) 2000-07-12
EP1017517B1 EP1017517B1 (en) 2003-02-26

Family

ID=20407268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98928737A Expired - Lifetime EP1017517B1 (en) 1997-06-05 1998-06-02 A method for punching and a punch die

Country Status (7)

Country Link
EP (1) EP1017517B1 (en)
AT (1) ATE233138T1 (en)
AU (1) AU8046398A (en)
DE (1) DE69811697T2 (en)
DK (1) DK1017517T3 (en)
SE (1) SE512912C2 (en)
WO (1) WO1998055244A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013003118B4 (en) * 2013-02-25 2015-03-26 Jenoptik Automatisierungstechnik Gmbh A method for disposing of a Bußens incurred in a perforation process of a hollow section

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU33025B (en) * 1969-10-07 1976-03-31 J Milek Uredaj za stancanje perforacija na cijevima raznih duzina i oblika
GB1329095A (en) * 1970-08-20 1973-09-05 Hdson L G Method and apparatus for perforating tubes
US4679289A (en) * 1986-08-15 1987-07-14 Brazeway, Inc. Method and apparatus for forming intruded branch attachment structures in tubing
IE60206B1 (en) * 1987-12-04 1994-06-15 Higgins Joseph Augustine "A method and apparatus for punching"
DE4334203C2 (en) * 1992-10-20 2003-08-07 Karl-Heinz Staffa Tool for inserting passages in a header pipe of a heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9855244A1 *

Also Published As

Publication number Publication date
ATE233138T1 (en) 2003-03-15
DE69811697D1 (en) 2003-04-03
SE512912C2 (en) 2000-06-05
DK1017517T3 (en) 2003-06-10
DE69811697T2 (en) 2003-10-23
SE9702153D0 (en) 1997-06-05
EP1017517B1 (en) 2003-02-26
WO1998055244A1 (en) 1998-12-10
SE9702153L (en) 1998-12-06
AU8046398A (en) 1998-12-21

Similar Documents

Publication Publication Date Title
US5247825A (en) Method of forming part in progressive die system
CA2147915A1 (en) Automated dimpling apparatus
AU6330299A (en) Fluid form
EP0641632A2 (en) Waste removing apparatus for use in punching machine for manufacturing carton
EP1017517B1 (en) A method for punching and a punch die
JPH08164431A (en) Press drilling device
JPH0375247B2 (en)
EP0495837B1 (en) Wall rail, method for the production hereof and tool herefor
GB2287287A (en) Outer housing for a kitchen fume or smoke extractor
JP2008223877A (en) Al ALLOY EXTRUDED SHAPED MATERIAL WITH PIERCE NUT
US4926676A (en) Forming process for producing sharp corners in sheet metal
JPH07223028A (en) Piercing device of tube stock
JPH08206750A (en) Press piercing device
KR19990080398A (en) Fire hydrant and its manufacturing method
JP2000210732A (en) Burr-free working method for press blanked product
US3735653A (en) Method for making knock-outs in electrical boxes formed of plastic material
SU1574322A1 (en) Male die for piercing holes and scraping bright their surface
JPH06269870A (en) Press device for work
JP3235486B2 (en) Press type cam structure
JP4446627B2 (en) Punching device
JPH11342432A (en) Iron core pressing by press mold
EP0124902A1 (en) A method of and an apparatus for manufacturing stanchions
JPH0349770Y2 (en)
JPS6210731B2 (en)
SU841722A1 (en) Universal die for punching holes in walls of box-type hollow parts

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

17P Request for examination filed

Effective date: 20000105

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI NL SE

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CARLSSON, PERVI

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030226

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030226

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030226

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69811697

Country of ref document: DE

Date of ref document: 20030403

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030828

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

EN Fr: translation not filed
26N No opposition filed

Effective date: 20031127

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: PM TEKNIK HANDELSBOLAG

Free format text: PM TEKNIK HANDELSBOLAG#FAELTMAETARGATAN 13#721 35 VAESTERAS (SE) -TRANSFER TO- PM TEKNIK HANDELSBOLAG#FAELTMAETARGATAN 13#721 35 VAESTERAS (SE)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20090610

Year of fee payment: 12

Ref country code: DK

Payment date: 20090622

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20090625

Year of fee payment: 12

Ref country code: IT

Payment date: 20090626

Year of fee payment: 12

Ref country code: FI

Payment date: 20090617

Year of fee payment: 12

Ref country code: AT

Payment date: 20090617

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20090617

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090630

Year of fee payment: 12

Ref country code: DE

Payment date: 20090626

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100602

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: DK

Ref legal event code: EBP

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100602

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110101

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100602

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100603