EP0073815B1 - Vorrichtung zum öffnen von briefkuverts oder dgl. - Google Patents

Vorrichtung zum öffnen von briefkuverts oder dgl. Download PDF

Info

Publication number
EP0073815B1
EP0073815B1 EP82901125A EP82901125A EP0073815B1 EP 0073815 B1 EP0073815 B1 EP 0073815B1 EP 82901125 A EP82901125 A EP 82901125A EP 82901125 A EP82901125 A EP 82901125A EP 0073815 B1 EP0073815 B1 EP 0073815B1
Authority
EP
European Patent Office
Prior art keywords
knife
knife holder
movable
blade
handle
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.)
Expired
Application number
EP82901125A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0073815A1 (de
Inventor
François MORAX
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.)
Delta Real Establishment
Original Assignee
Delta Real Establishment
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 Delta Real Establishment filed Critical Delta Real Establishment
Publication of EP0073815A1 publication Critical patent/EP0073815A1/de
Application granted granted Critical
Publication of EP0073815B1 publication Critical patent/EP0073815B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M7/00—Devices for opening envelopes
    • B43M7/008—Devices for opening envelopes with a cylindrical cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M7/00—Devices for opening envelopes
    • B43M7/007—Devices for opening envelopes with cutting blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/912—Envelope openers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8776—Constantly urged tool or tool support [e.g., spring biased]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8776—Constantly urged tool or tool support [e.g., spring biased]
    • Y10T83/8785—Through return [noncutting] stroke
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8817—Axially entending cutting edge
    • Y10T83/8818—Axially progressing cut

Definitions

  • the invention relates to a device for opening letters with the features of the preamble of claim 1.
  • Such a device is previously known from US Pat. No. 1,666,533.
  • This has a stationary base part, which carries a knife carrier for the stationary knife blade in a pivotable manner.
  • This pivotable knife holder is connected to a spring that constantly tries to pull it towards the movable knife holder.
  • the stationary knife blade is positioned horizontally and flush with the letter system.
  • the letter system is essentially horizontal from the front of the device.
  • a rotatable knife carrier in the form of a roller is connected to the base part. This accommodates the movable knife blade in a suitable slot that runs obliquely to the longitudinal axis. This knife blade protrudes from the circumferential surface by the thickness of the letter edge to be cut off.
  • the movable knife holder is operated by means of a separately designed, attached handle.
  • a device for opening letters in which a knife roller driven by means of an electric motor and having a substantially circular cross-section is used.
  • the stationary, spring-loaded counter knife runs obliquely upwards.
  • the CH-PS 242 181 describes a device for opening letters, in which a pivotable plate is connected to a base plate. This also serves as a handle but also as a letter system. The front of this plate carries a knife that works with a counter knife on an upright plate, which is pivotally pressed against this knife.
  • a similar device is finally known from DE-PS 24 88 66.
  • the letter to be opened is clamped onto an oblique plate. This plate is swiveled and works together with a cutter bar.
  • the invention has for its object to improve in particular the device described above for opening letters so that the knife carrier is material-saving and easier to manufacture in series production and also the knife blades are easier to manufacture and use.
  • the invention offers the advantage of making the knife carrier relatively simple and material-saving. It allows simple knife training and attachment. Finally, the handle for actuating the device is already molded onto the knife carrier, so that the installation of an additional handle is not necessary.
  • the device for opening letters or the like has a base part 1, a stationary knife holder 2, a movable knife holder 3 and a handle 4 formed thereon.
  • the movable knife carrier 3 is an essentially rectangular block 5 which extends over the full knife length and has flat side surfaces 6.
  • Eccentrically arranged pivot pins 7 are formed on the side surfaces 6 and are rotatably mounted in bearings of the base part 1, which are not shown in detail.
  • the block 5 has a circular segment surface 8, the center of which forms the central axis of the pivot pin 7.
  • a flat bearing surface 9 for the movable knife blade 10 adjoins the circular segment surface 8 on the upper side, rising slightly inwards.
  • the movable knife blade 10 is fastened to the block 5 by means of screws 11.
  • the bearing surface 9 runs inclined in the longitudinal direction of the block 5, namely, as can be seen from FIG. 1, rising from left to right in the drawing figure.
  • the movable knife blade 10 protrudes with its cutting edge 12 over the circular segment surface 8, specifically around the edge to be cut off from the envelope 13 to be opened, preferably the cutting edge 12 ⁇ m protrudes 0.6 mm over the circular segment surface 8, so that 0.6 mm of the envelope 13 are cut off.
  • the block 5 continues in its rear region into an upwardly extending part 14, which extends over the entire length of the block, in order then to merge into a part 15, which is bent in cross section and tapered towards the front.
  • Parts 14 and 15 form handle 4, which can be moved by hand in the direction of arrow I to actuate the device.
  • an opening 16 is formed in the handle part 15, as indicated by the broken line.
  • a helical spring 17 can be arranged around the pivot pin 7 for this purpose, one end of which is connected to the one side cheek 18 of the base part 1 and the other end to the block 5.
  • the stationary knife holder 2 is also arranged as a longitudinal block 19. It is pivotally supported to a limited extent in the side cheeks 18 of the base part 1.
  • the parallel side surfaces 20 of the block have pivot pins 21 which are rotatably mounted in bearings of the side cheeks 18, not shown.
  • a further blade 23 is fastened by means of screws 24 to the plane 22 facing the block 5, which extends obliquely upwards from the pivot pin 21 and towards the block 5.
  • the cutting edge 25 of the knife blade 23 runs flush with the flat upper side 26, which serves as a support plane for the envelope 13.
  • a side stop 27 for the envelope 13 protruding above this upper side 26 is formed. This side stop 27 is arranged so that the envelope 13 can just be pushed up to the circular segment surface 8 up to the stop between the cutting edges 12 and 25.
  • a coil spring 29 is arranged around at least one of the pivot pins 21, one end of which is connected to the side wall 18 and the other end of which is connected to the block 19.
  • the base part 1 is U-shaped and has two lateral cheeks 18 and a bottom 30. In the bottom 30 there is a recess 31, which is covered by a pull-out waste drawer 32 for receiving the cut letter envelope.
  • the block 19 is a rigid component of the base part 1.
  • the knife carrier block 5 is not only pivotally mounted, but is also movable in the direction IV towards the stationary knife blade 23.
  • a fixed axis 33 is provided for the knife block 5, which is rigidly mounted in the side cheeks 18 of the base part 1.
  • the block 5 has a slot-like recess 34 through which the axis 33 extends. Springs 35 are supported on the one hand against the wall of this recess and on the other hand against the rigid axis 33, as a result of which the knife block 5 is constantly pressed with its knife edge 12 against the knife edge 25 in the contact area.
  • the base part 1 is open towards the bottom.
  • the flat blade 23 is rigidly fixed in the recessed position by means of screws, not shown, on the flat, slightly sloping top side 40 in the direction of contact V for the envelope or the like to be opened.
  • the undercut cutting edge 25 of this knife 23 projects somewhat beyond the wall of the upper side 40 into the free space of an opening 41 on the upper side 40.
  • the block 5, which carries the movable knife blade 10 may have only lateral arms 43 which extend the block 5 towards the front 42 and which are pivotably mounted in the side walls 44.
  • the hubs 45 engage in elongated holes 47 in the side walls 44 by means of pivot pins 46 and are pressed there toward the front 42 by means of compression springs 48.
  • the cutting edge 12 of the knife blade 10, which projects beyond the block 5 by the amount of the envelope to be cut or the like, is thus kept in constant contact with the edge 25 of the knife blade 23.
  • the knife blade 10 in turn extends inclined in the longitudinal direction of the block 5, as in the embodiment according to FIG. 3, and also remains in contact with the knife blade 23 in the starting position.
  • the handle 4 continues towards the rear 49.
  • the cut is made by operating the handle 4 in the direction of the arrow 1.
  • the cut can thus be made by actuating the handle on the side facing away from the system.
  • the knife block 19 is in turn, as in the embodiment of FIG. 3, formed.
  • the housing 1 can have lateral hubs 54 for mounting the lateral arms 43.

Landscapes

  • Knives (AREA)
EP82901125A 1981-03-12 1982-03-12 Vorrichtung zum öffnen von briefkuverts oder dgl. Expired EP0073815B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3109501 1981-03-12
DE3109501A DE3109501C2 (de) 1981-03-12 1981-03-12 Vorrichtung zum Öffnen von Briefumschlägen

Publications (2)

Publication Number Publication Date
EP0073815A1 EP0073815A1 (de) 1983-03-16
EP0073815B1 true EP0073815B1 (de) 1986-06-11

Family

ID=6127054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82901125A Expired EP0073815B1 (de) 1981-03-12 1982-03-12 Vorrichtung zum öffnen von briefkuverts oder dgl.

Country Status (12)

Country Link
US (1) US4527455A (pt)
EP (1) EP0073815B1 (pt)
JP (1) JPS58500941A (pt)
AT (1) AT390401B (pt)
AU (1) AU550971B2 (pt)
BR (1) BR8206884A (pt)
CH (1) CH660571A5 (pt)
DE (1) DE3109501C2 (pt)
DK (1) DK149267C (pt)
GR (1) GR75891B (pt)
SE (1) SE455481B (pt)
WO (1) WO1982003206A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2532387Y2 (ja) * 1990-12-06 1997-04-16 ブラザー工業株式会社 テープ切断装置
DE4301696A1 (de) * 1993-01-22 1994-08-11 Delta Real Ets Vorrichtung zum Öffnen von Briefumschlägen
US6260462B1 (en) * 1993-07-28 2001-07-17 William George Edward Daysh Method and device for opening cartons
IL111941A (en) * 1994-12-09 1997-08-14 Ofer Haifa Haifa And Eliahu Do Letter opener
US5974929A (en) * 1994-12-09 1999-11-02 D.G.D Haifa Ltd. Combined letter opener and letter punch
US5839342A (en) * 1995-06-29 1998-11-24 E. I. Du Pont De Nemours And Company Yarn cutter
WO1998040227A1 (de) 1997-03-11 1998-09-17 Frama Ag Brieföffner
US8359962B2 (en) * 2007-12-12 2013-01-29 Ajc Tools & Equipment Cutting apparatus
US9199385B2 (en) 2007-12-12 2015-12-01 Ajc Tools & Equipment Cutting apparatus
US11286669B2 (en) * 2018-03-19 2022-03-29 Quail Manufacturing, LLC Shingle cutting machine

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE305445C (pt) *
DE248866C (pt) *
US605093A (en) * 1898-06-07 Envelop-opener
US628908A (en) * 1899-03-18 1899-07-11 E & H T Anthony & Company Paper-cutter.
US1098510A (en) * 1913-05-31 1914-06-02 Albert Krauth Paper feeding and severing mechanism for manifolding-machines.
US1302398A (en) * 1918-05-13 1919-04-29 Bert V Barber Letter-opener.
US1666533A (en) * 1927-05-12 1928-04-17 Clarence P Heck Envelope opener
DE515433C (de) * 1929-01-12 1931-01-10 Eduard Avram Briefoeffenvorrichtung
DE504710C (de) * 1929-07-21 1930-08-07 Benno Schulz Briefoeffner
US1833549A (en) * 1930-05-06 1931-11-24 Luke Doyle Envelope opener
US1963873A (en) * 1932-09-28 1934-06-19 Carl C Cavanah Envelope opening device
CH242181A (de) * 1944-04-17 1946-04-30 Fenner Albert Vorrichtung zum Öffnen von Briefumschlägen.
GB621186A (en) * 1947-01-08 1949-04-05 Reginald Frederick Hargreaves A new or improved appliance for opening letters
CH285809A (fr) * 1950-05-08 1952-09-30 Frederick Hargreaves Reginald Appareil pour ouvrir les Lettres.
DE863768C (de) * 1950-09-22 1953-01-19 Albert Dipl-Ing Stoll Briefoeffner
DE852822C (de) * 1951-02-17 1952-10-20 Guhl & Harbeck Vorrichtung zum OEffnen von Briefen
GB733080A (en) * 1952-07-01 1955-07-06 William Bertram Steen Envelope opening mechanism
DE951428C (de) * 1954-08-22 1956-10-25 Guhl & Harbeck Vorrichtung zum OEffnen von Briefen
DE958364C (de) * 1955-07-14 1957-02-14 Guhl & Harbeck Vorrichtung zum Aufschneiden von Briefumschlaegen
DE1813453U (de) * 1960-04-21 1960-06-15 Friedrich Arndt Schneidewalze mit beweglichem gegenmesser fuer briefoeffner.
DE1889742U (de) * 1963-05-02 1964-03-19 Dahle Wilhelm Metallwaren Briefoeffner-apparat.
US3522752A (en) * 1968-04-05 1970-08-04 Robert B Ford Paper trimmer
JPS5233399B1 (pt) * 1971-04-15 1977-08-27
US3855891A (en) * 1971-07-12 1974-12-24 Gaf Corp Knife module for cutting roll stock in automated equipment
JPS5011096U (pt) * 1973-05-25 1975-02-04
JPS5225598B2 (pt) * 1973-08-24 1977-07-08
JPS5442309U (pt) * 1977-08-31 1979-03-22

Also Published As

Publication number Publication date
EP0073815A1 (de) 1983-03-16
SE8206373D0 (sv) 1982-11-10
DK149267C (da) 1986-11-03
SE8206373L (sv) 1982-11-10
GR75891B (pt) 1984-08-02
JPH0530200B2 (pt) 1993-05-07
DE3109501A1 (de) 1982-09-30
WO1982003206A1 (en) 1982-09-30
AU8333382A (en) 1982-10-06
DE3109501C2 (de) 1985-05-23
BR8206884A (pt) 1983-03-01
CH660571A5 (de) 1987-05-15
JPS58500941A (ja) 1983-06-09
AU550971B2 (en) 1986-04-10
SE455481B (sv) 1988-07-18
DK149267B (da) 1986-04-14
AT390401B (de) 1990-05-10
US4527455A (en) 1985-07-09
ATA901182A (de) 1989-10-15
DK430482A (da) 1982-09-30

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