EP0649361B1 - Agrafeuse - Google Patents

Agrafeuse Download PDF

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Publication number
EP0649361B1
EP0649361B1 EP93912922A EP93912922A EP0649361B1 EP 0649361 B1 EP0649361 B1 EP 0649361B1 EP 93912922 A EP93912922 A EP 93912922A EP 93912922 A EP93912922 A EP 93912922A EP 0649361 B1 EP0649361 B1 EP 0649361B1
Authority
EP
European Patent Office
Prior art keywords
anvil plate
stapler according
base part
lugs
handling
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 - Lifetime
Application number
EP93912922A
Other languages
German (de)
English (en)
Other versions
EP0649361A1 (fr
Inventor
Hans-Werner Groch
Moritz Steiner
Klaus Baumgartner
Joachim Eisenhardt
Wolfgang Sahl
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.)
Louis Leitz KG
Original Assignee
Louis Leitz KG
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
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Application filed by Louis Leitz KG filed Critical Louis Leitz KG
Publication of EP0649361A1 publication Critical patent/EP0649361A1/fr
Application granted granted Critical
Publication of EP0649361B1 publication Critical patent/EP0649361B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/02—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor with provision for bending the ends of the staples on to the work
    • B25C5/0221—Stapling tools of the table model type, i.e. tools supported by a table or the work during operation
    • B25C5/0242—Stapling tools of the table model type, i.e. tools supported by a table or the work during operation having a pivoting upper leg and a leg provided with an anvil supported by the table or work
    • B25C5/025—Stapling tools of the table model type, i.e. tools supported by a table or the work during operation having a pivoting upper leg and a leg provided with an anvil supported by the table or work the plunger being manually operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/02—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor with provision for bending the ends of the staples on to the work
    • B25C5/0207—Particular clinching mechanisms

Definitions

  • the invention relates to a staple device with an elongated base part with an upward-facing broad side surface and two laterally adjoining narrow side surfaces, with a magazine for receiving staples and a driver for ejecting the staples, which is pivotably mounted on a bearing block at one end of the base part about a transverse axis having upper part, and with a near the end of the base part opposite the bearing block in the longitudinal direction, preferably in two latching or end positions, provided on its upward-facing surface parallel to the upper broad side surface of the base part with deformation embossments for the legs of the ejected staples
  • Anvil plate on the opposite longitudinal side edges of the anvil plate preferably bent perpendicularly in the direction of the narrow side surfaces of the base part and at least partially overlapping one after the other grip tabs with opposite sides are provided.
  • the invention has for its object to develop a stapler of the type specified, in which on the one hand a flat, self-cleaning side guide of the anvil plate displaceable in the base part and a good locking effect of the anvil plate in its end positions is ensured, and on the other hand it is ensured that the Anvil plate is mounted in the correct orientation on the bottom part.
  • a parallel guidance of the anvil plate on the base part in the area of the openings is achieved with the lateral guide surfaces according to the invention and the holding tabs guided on them.
  • the narrow side surfaces in the area of the grip tabs bent downward do not have any wear-prone cornering function.
  • the holding tabs opposite one another on the transverse edges of the anvil plate have different transverse dimensions and the lateral guide surfaces in pairs have a different, the transverse dimensions of the associated Holding tabs adapted, clear distance from each other, it is ensured that the anvil plate is mounted in the correct orientation on the bottom part.
  • the grip tabs are designed as edge bends extending over the entire length of the anvil plate, so that the anvil plate together with its lateral grip tabs has a substantially U-shaped cross-sectional profile.
  • An advantageous embodiment of the invention provides that the grip tabs each engage in an open-edge recess of the narrow side surfaces of the base part, the grip surfaces of the grip tabs recessed in the recess being flush with the adjacent narrow side surfaces or projecting beyond them by less than the material thickness of the grip tabs.
  • the anvil plate as such is also expediently sunk in a recess in the broad side surface, the recesses located in the broad side surface and the narrow side surfaces merging into one another and being able to be delimited by mutually aligned end stop flanks for the anvil plate and its side tabs.
  • the anvil plate is guided on two guide webs which are arranged at a lateral distance from one another, are aligned in the longitudinal direction and are countersunk with respect to the broad side surface and are formed on the base part and which advantageously have a transversely curved upper edge.
  • the guide webs, which are recessed in relation to the narrow side surfaces, are advantageously overlapped on the outside by the grip tabs bent on the anvil plate.
  • the holding tabs expediently each have an eyelet for receiving the leaf spring, while the leaf spring is provided with end-side anchoring and / or centering cams which overlap the respective eyelet edge on one or both sides.
  • the leaf spring can be pretensioned against the end eyelet edges in the bending direction via the central latching members and can be easily assembled with a correspondingly large eyelet dimension.
  • the web-side locking members are expediently designed as a triangular rib with opposing bevels, while the spring-side locking members can have a spherical, preferably partially cylindrical or spherical locking surface.
  • the detent spring If the web and the detent spring carry mutually complementary detent members on their mutually facing sides, the detent spring is only on when moving Bending is stressed, while wear-prone transverse loads are avoided.
  • 1 and 2 essentially consists of a base part 10 with a bearing block 12 arranged at the rear end of the base part 10, an upper part 14 with a clip magazine 16, driver holder 18 and cap 20, and a driver 22 preferably suspended on the driver holder 18 for ejecting staples arranged in the staple magazine 16, as well as an anvil plate 24 which is displaceable in the longitudinal direction in the longitudinal direction thereof and which can be latched into two end positions after the anvil plate 24 has been moved, are located directly under the driver 22 and the ejection channel 32 of the staple magazine 16 and are intended for deforming the legs of the staples for inside or outside stitching.
  • the anvil plate 24 has on its longitudinal edges 34 vertically downwardly bent grip tabs 36 which, with their gripping surfaces 40 carrying a corrugation 38, face opposite sides and engage in open-ended recesses 42 in the narrow side walls 44.
  • the anvil plate 24 rests with its plate part on two guide webs 46 arranged at a lateral distance from one another and countersunk with respect to the broad side surface 26, which have an upper edge 47 curved in the transverse direction and with their outside Limit the adjacent edge-open recess 42.
  • retaining tabs 50, 52 are bent downward in the central region, which reach down through two openings 54 of the base part 10 arranged at a distance from one another and which are provided with eyelets 56 in their lower region.
  • Extending between the two retaining tabs 50, 52 is a leaf spring 58 made of plastic and aligned in the longitudinal direction of the base part 10, the ends of which extend through the eyelets 56 of the retaining tabs 50, 52 and are positively anchored by means of projections 60 on the lower edge of the eye.
  • the leaf spring 58 is subject to a bending prestress, which is generated in the two end positions of the anvil plate 24 by means of a spherical latching cam 64 which bears against a transverse web 62 of the base part 10.
  • a transverse locking rib 66 with an essentially triangular cross-section, against the run-up slopes of which the locking cam 64 of the leaf spring 58 rests in the respective end positions and which is overcome when the anvil plate 24 is moved by the locking cam 24 against the bending force of the leaf spring 58 must become.
  • side guide surfaces 68 are arranged in the interior of the bottom part, against which the anvil plate 24 abuts with the outer edges of its retaining tabs 50, 52.
  • the front tab 50 and the rear retaining tab 52 have different transverse dimensions, while the side guide surfaces 68 for the two retaining tabs 50, 52 have a different clearance from one another in pairs, so that it is ensured that the anvil plate can only be inserted into the base part 10 in the correct orientation.
  • the invention relates to a stapler with an elongated base part 10, an upper part 14 pivotably mounted on a rear bearing block 12 of the base part and with an arranged in the front region of the base part 10, which can be displaced in the longitudinal direction in two end positions Deformation embossments 28, 30 for the legs of the anvil plate 24 provided with the ejected staples.
  • a stapler with an elongated base part 10, an upper part 14 pivotably mounted on a rear bearing block 12 of the base part and with an arranged in the front region of the base part 10, which can be displaced in the longitudinal direction in two end positions
  • Deformation embossments 28, 30 for the legs of the anvil plate 24 provided with the ejected staples.
  • Pointing grip surfaces 40 having grip tabs 36 are integrally formed, on which the anvil plate 24 can be easily gripped between the thumb and index finger for adjustment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Materials For Medical Uses (AREA)
  • Surgical Instruments (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (18)

  1. Agrafeuse, comprenant un élément de fond (10) allongé avec une surface de côté large (26) dirigée vers le haut et deux surfaces de petit côté (44) qui y font suite latéralement, une partie supérieure (14) montée sur un support (12) à l'une des extrémités de l'élément de fond de manière à pouvoir pivoter autour d'un axe transversal, et munie d'un chargeur (16) pour la réception d'agrafes ainsi que d'un poussoir (22) pour l'expulsion des agrafes, et une plaque d'enclume (24) qui peut être déplacée de préférence, à proximité de l'extrémité de l'élément de fond (10) opposée au support (12), dans la direction longitudinale de celui-ci, dans deux positions de crantage ou d'extrémité, et qui présente, sur sa surface dirigée vers le haut et orienteé parallèlement à la surface de côté large supérieure (26) de l'élément de fond (10), des estampages de déformation (28, 30) pour les branches des agrafes expulsées, des pattes de préhension (36) pliées de préférence verticalement en direction des surfaces de petit côté (44) de l'élément de fond (10) en recouvrant celles-ci au moins en partie, et présentant des surfaces de prise (40), étant prévues sur les bords (34) des grands côtés de la plaque d'enclume (24) situés en face l'un de l'autre, caractérisée en ce qu'elle présente deux ajours (54) disposés dans la région de la surface de côté large (26) de l'élément de fond (10), écartes l'un de l'autre dans le sens longitudinal et séparés par une barrette transversale (62), deux pattes de retenue (50, 52) pliées sensiblement verticalement aux bords transversaux (48) de la plaque d'enclume (24) et traversant vers le bas les ajours (54) ménagés dans l'élément de fond (10), ainsi qu'un ressort à cran d'arrêt (58) enserré entre les deux pattes de retenue (50, 52), qui recouvre la barrette transversale (62) sur la surface inférieure de l'élément de fond (10) et peut être verrouillé sur celle-ci dans au moins deux positions de crantage, des surfaces de guidage latéral (68) pour les pattes de retenue (50, 52) orientées dans le sens longitudinal et opposées par paires étant disposées ou conformées sur l'élément de fond (10), dans la région des ajours (54), les pattes de retenue (50, 52) situées en face l'une de l'autre aux bords transversaux (48) de la plaque d'enclume (24) présentant des dimensions transversales différentes, et les surfaces de guidage latéral (68) présentant entre elles, par paire, un écartement variable correspondant aux dimensions transversales des pattes de retenue (50, 52) associées.
  2. Agrafeuse selon la revendication 1, caractérisée en ce que les pattes de préhension (36) sont réalisées sous la forme de coudes latéraux de la plaque d'enclume (24) qui s'étendent sur toute la longueur de la plaque d'enclume (24).
  3. Agrafeuse selon les revendications 1 ou 2, caractérisée en ce que la plaque d'enclume (24) présente, conjointement avec ses pattes de préhension (36) latérales, une section transversale en forme de U.
  4. Agrafeuse selon l'une des revendications 1 à 3, caractérisée en ce que les pattes de préhension (36) s'engagent respectivement dans un évidement (42) des surfaces de petit côté (44) ouvert au bord.
  5. Agrafeuse selon la revendication 4, caractérisée en ce que les surfaces de prise (40) des pattes de préhension (36) noyées dans l'évidement (42) ouvert au bord sont alignées avec les surfaces de petit côté (44) ou dépassent de celles-ci de moins de l'épaisseur des surfaces de prise (40).
  6. Agrafeuse selon l'une des revendications 1 à 5, caractérisée en ce que les surfaces de brise (40) présentent un aspect rugueux ou cannelé (38).
  7. Agrafeuse selon l'une des revendications 1 à 6, caractérisée en ce que la plaque d'enclume (24) est noyée dans une creusure de la surface de côté large (26).
  8. Agrafeuse selon l'une des revendications 1 à 7, caractérisée en ce que les évidements (42) à bord ouvert prévus dans la surface de côté large (26) et dans les surfaces de petit côté (44) se confondent et sont délimités par des flancs d'arrêt frontaux pour la plaque d'enclume (24) alignés les uns avec les autres et par les pattes de préhension (36) latérale de cette dernière.
  9. Agrafeuse selon l'une des revendications 1 à 8, caractérisée en ce que la plaque d'enclume (24) est guidée sur deux barrettes de guidage (46) disposées à distance l'une de l'autre, alignées dans le sens longitudinal et noyées par rapport à la surface de côté large (26).
  10. Agrafeuse selon la revendication 9, caractérisée en ce que les barrettes de guidage (46) présentent un bord supérieur (47) courbé dans le sens transversal.
  11. Agrafeuse selon les revendications 9 ou 10, caractérisée en ce que les pattes de préhension (36) recouvrent extérieurement les barrettes de guidage (46) noyées par rapport aux surfaces de petit côté (44).
  12. Agrafeuse selon l'une des revendications 1 à 11, caractérisée en ce que le ressort à cran d'arrêt (58) est réalisé sous la forme d'un ressort à lame, de préférence en matière plastique, orienté dans la direction longitudinale de l'élément de fond (10).
  13. Agrafeuse selon la revendication 12, caractérisée en ce que la barrette transversale (62) et le ressort à cran d'arrêt (58) portent sur leurs surfaces tournées l'une vers l'autre, des organes d'arrêt (64, 66) complémentaires.
  14. Agrafeuse selon la revendication 13, caractérisée en ce que l'un des organes d'arrêt (66) situé de préférence du côté barrette, est conformé en nervure triangulaire avec des rampes d'arrêt opposées.
  15. Agrafeuse selon les revendications 13 ou 14, caractérisée en ce que l'un des organes d'arrêt (64) situé de préférence du côté ressort est conformé en came avec une surface d'arrêt bombée, de préférence de forme partiellement cylindrique ou sphérique.
  16. Agrafeuse selon l'une des revendications 12 à 15, caractérisée en ce que les pattes de retenue (50, 52) présentent chacune un oeillet (56) pour la réception à engagement positif des extrémités du ressort à lame.
  17. Agrafeuse selon la revendication 16, caractérisée en ce que le ressort à lame (58) est muni aux extrémités de cames d'ancrage ou de centrage (60) qui recouvrent, d'un côté ou des deux côtés, le bord respectif des oeillets.
  18. Agrafeuse selon les revendications 16 au 17, caractérisée en ce que, par l'intermédiaire des organes d'arrêt (64, 66) centraux, le ressort à lame (58) est mis en précontrainte dans la direction de flexion par rapport aux bords d'extrémité des oeillets.
EP93912922A 1992-07-04 1993-06-09 Agrafeuse Expired - Lifetime EP0649361B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4222001A DE4222001A1 (de) 1992-07-04 1992-07-04 Heftklammergerät
DE4222001 1992-07-04
PCT/EP1993/001451 WO1994001250A1 (fr) 1992-07-04 1993-06-09 Agrafeuse

Publications (2)

Publication Number Publication Date
EP0649361A1 EP0649361A1 (fr) 1995-04-26
EP0649361B1 true EP0649361B1 (fr) 1996-05-01

Family

ID=6462486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93912922A Expired - Lifetime EP0649361B1 (fr) 1992-07-04 1993-06-09 Agrafeuse

Country Status (11)

Country Link
EP (1) EP0649361B1 (fr)
JP (1) JP2644627B2 (fr)
CN (1) CN1039213C (fr)
AT (1) ATE137429T1 (fr)
DE (3) DE4222001A1 (fr)
ES (1) ES2087746T3 (fr)
HK (1) HK192296A (fr)
IS (1) IS4046A (fr)
PL (1) PL171492B1 (fr)
TR (1) TR27223A (fr)
WO (1) WO1994001250A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4447079A1 (de) * 1994-12-29 1996-07-04 Leitz Louis Kg Heftgerät mit Springfachmechanik
US5858515A (en) * 1995-12-29 1999-01-12 Kimberly-Clark Worldwide, Inc. Pattern-unbonded nonwoven web and process for making the same
JP4254149B2 (ja) * 2002-07-26 2009-04-15 マックス株式会社 ホッチキスにおけるカートリッジ
DE102016003990A1 (de) * 2016-04-06 2017-10-12 Esselte Leitz Gmbh & Co. Kg Heftklammergerät

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421571A (en) * 1933-05-26 1934-12-27 Ace Fastener Corp Improvements in or relating to stapling devices
DE971001C (de) * 1937-01-02 1958-11-27 Parrot Speed Fastener Corp Heftgeraet fuer einen Streifen von U-foermigen Klammern
US2193599A (en) * 1938-12-12 1940-03-12 Boston Wire Stitcher Co Fastener-applying device
US2298520A (en) * 1939-08-29 1942-10-13 Neva Clog Products Inc Stapling machine
US2343203A (en) * 1940-07-01 1944-02-29 William G Pankonin Stapling machine
DE809791C (de) * 1947-07-22 1951-08-02 Otto Moen Heftmaschine
GB806858A (en) * 1956-10-16 1958-12-31 Elastic Ag Improvements in or relating to stapling machines
DE6902209U (de) * 1969-01-21 1969-08-07 Esco Metall Martin Huhnken Heftklammerapparat
US4610386A (en) * 1980-11-03 1986-09-09 Xerox Corporation Stapler having a variable stop member for limiting stapling stroke and staple leg length
DE9213320U1 (de) * 1992-10-05 1992-12-10 Erwin Müller GmbH & Co, 4450 Lingen Blockhefter zum Heften stärkerer Papierlagen

Also Published As

Publication number Publication date
CN1039213C (zh) 1998-07-22
CN1083778A (zh) 1994-03-16
JP2644627B2 (ja) 1997-08-25
WO1994001250A1 (fr) 1994-01-20
IS4046A (is) 1994-01-05
EP0649361A1 (fr) 1995-04-26
DE59302461D1 (de) 1996-06-05
DE9219082U1 (de) 1997-07-31
TR27223A (tr) 1994-12-20
PL310898A1 (en) 1996-01-08
DE4222001A1 (de) 1994-01-05
PL171492B1 (pl) 1997-05-30
HK192296A (en) 1996-10-25
ES2087746T3 (es) 1996-07-16
ATE137429T1 (de) 1996-05-15
JPH08510692A (ja) 1996-11-12

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