EP0559861A1 - Dispositif d'enfoncement a obturateur de magasin. - Google Patents

Dispositif d'enfoncement a obturateur de magasin.

Info

Publication number
EP0559861A1
EP0559861A1 EP92919415A EP92919415A EP0559861A1 EP 0559861 A1 EP0559861 A1 EP 0559861A1 EP 92919415 A EP92919415 A EP 92919415A EP 92919415 A EP92919415 A EP 92919415A EP 0559861 A1 EP0559861 A1 EP 0559861A1
Authority
EP
European Patent Office
Prior art keywords
magazine
slide
driving tool
counter
tool according
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
EP92919415A
Other languages
German (de)
English (en)
Other versions
EP0559861B1 (fr
Inventor
Manfred Buck
Karl Wanner
Wolfgang Schmid
Ernst Kraenzler
Klaus Kleyer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0559861A1 publication Critical patent/EP0559861A1/fr
Application granted granted Critical
Publication of EP0559861B1 publication Critical patent/EP0559861B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B25C5/16—Staple-feeding devices, e.g. with feeding means, supports for staples or accessories concerning feeding devices
    • B25C5/1606—Feeding means
    • B25C5/1617—Feeding means employing a spring-loaded pusher
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/001—Nail feeding devices

Definitions

  • the invention is based on a driving tool according to the preamble of claim 1.
  • a driving tool is already known, the magazine of which can be opened by lateral pressure on a handle of the magazine slide and then pulling out the slide.
  • this magazine however, a relatively large amount of force is required when opening in order to deflect the detent springs which generate the necessary locking force of the magazine.
  • the driving tool according to the invention with the characterizing features of claim 1 has the advantage that it can be opened with little effort without the high locking force of the magazine on the firing channel being impaired.
  • the magazine can be opened with a simple pull on the handle.
  • the manual opening force of the magazine lock is considerably lower than the locking force on the magazine slide generated by the detent springs.
  • the measures listed in the dependent claims allow advantageous developments and improvements of the driving tool specified in claim 1. It is particularly advantageous if the movable contact piece has two sections, only one of which holds the counter-locking element in contact with the locking spring and the other leaves the counter-locking element freedom of movement. It is also advantageous to design the counter-locking elements as rollers.
  • a storage of the counter-locking elements in the slide which enables transverse mobility to the direction of displacement, together with the design of the switching element leads to the desired low required opening force of the magazine.
  • a crouch between the holding section and the recess of the contact piece determines the amount of force to be used when opening the magazine.
  • the cam should therefore be chosen to be small.
  • the catch spring engaging around the associated counter-catch element causes a high closing spring on the slide. This has the advantage that the firing channel remains completely closed in normal operation, but the slide can yield when stapling is clamped in the final channel in order to avoid damage.
  • the arrangement of the recess of the slide in front of the holding section has the consequence that the pulling direction for opening the magazine closure and for opening the magazine is the same.
  • the handle for opening the magazine is expediently arranged directly on the switching piece and is displaceable relative to the slide by the required switching path. Finally, a small catch spring in the handle ensures that the switching piece does not come into its locking position before the magazine is fully inserted.
  • Figure 1 shows an overall view of the driving tool according to the invention
  • Figure 2 shows the magazine closure in section along line II-II in Figure 1 or in Figure 3
  • Figure 3 shows a section along line III-III in Figure 2.
  • Figure 4 shows one Opened magazine closure in a section along line II-II in FIG. 1 or in FIG. 5 and FIG. 5 a section along line VV in FIG. 4.
  • a driving tool has a shock knife 2, which is driven in particular by a current-carrying coil and is guided in a firing channel 3.
  • the firing channel 3 extends into a magazine 4 and ends in a mouth 5.
  • the magazine 4 is mounted at the front near the firing channel 3 in an elongated hole 7, which is penetrated by a pin 8 fixed to the housing, with limited vertical movement.
  • the magazine 4 is connected to the housing 1 so that it can rotate about a horizontal axis 9.
  • the magazine 4 consists essentially of a U-shaped first magazine part 11 connected to the housing 1 and immovable with respect to the firing channel 3 and a slide 12 engaging therein.
  • One of the flanks 13 can be seen in particular from the magazine part 10 in FIG.
  • the clip-shaped stapling means 14 ready for processing are guided in an intermediate space formed between magazine part 11 and slide 12.
  • the magazine 4 is laterally covered by a housing part 15.
  • the housing part 15 does not extend to the end of the magazine but only up to a handle 16 which is connected to the slide 12.
  • the handle 16 has the shape of a box open on two sides, of which a side wall 17 can be seen in FIG. The handle 16 is therefore freely accessible from the outside to pull the slide 12 away from the firing channel 3 to the rear.
  • the slide 12 has a flat base plate 20, on which a storage rack 21 for mounting counter-locking elements 22 is placed.
  • the counter-latching elements 22 are designed as standing rollers.
  • the bearing frame 21 allows the rollers 22 to move to a certain extent transversely to the longitudinal extent of the magazine 4.
  • the rollers are immovable in the direction of displacement of the slide 12 which is 90 ° to it.
  • the slide 12 is closed at the top by a cover plate 23, which also prevents the rollers 22 from falling out.
  • a "switching piece 25 is arranged at the level of the rollers 22. At its end facing the closing channel 3, it has laterally protruding cams 24 (See Figure 4.)
  • the switching piece 25 has two tabs one above the other, each with holding sections 26 arranged opposite one another in pairs, which hold the rollers 22 in contact with the detent springs 18. In the direction of the firing channel 3, subsequent to the holding sections 26, the switching piece 25 has obliquely tapered recesses 27 into which the rollers 22 can fall when the magazine lock is open (see Figure 4.)
  • a small cam 28 is arranged between the holding sections 26 and the recesses 27.
  • the switching piece 25 has a web running perpendicularly between the two tabs 29, which is inserted into a groove 30 of the handle 16 (see F igur 4 and 5. The switching piece 25 is thereby firmly connected to the handle 16. Switch piece 25 and handle 16 are displaceable relative to the slide 12 by a switching path which is somewhat larger than the diameter of the counter-locking elements 22.
  • the handle 16 has a longitudinal groove 31 on the side walls 17 at the bottom left and right, and is guided on the base plate 20 so that it can move slowly.
  • a small catch spring 33 is arranged, the catch 34 of which interacts with the rear end edge 35 of the base plate 20 (see FIG. 3 and FIG. 5).
  • the slider 12 is not form-fitting, but is only held in the magazine part 11 in a force-fitting manner, so that when clamping means 4 in the firing channel 3, the slider 12 can retreat somewhat and damage in the firing channel can be avoided.
  • the locking force of the magazine caused by the spring ends 19 is so great that the magazine does not open automatically during operation.
  • the end edge 35 of the base plate 20, which in this position bears directly against the rear wall 36 of the handle 16, serves as a stop for the closed position of the magazine lock.
  • the handle 16 is pulled away from the firing channel 3 into the position shown in FIGS. 4 and 5.
  • the counter-locking elements 22 slide over the cams 28 and get into the recesses 27 of the switching element 25.
  • the locking springs 18 deviate slightly outwards to the side walls 17 of the handle 16.
  • the cams 24 of the switching element 25 pull on the bearing frame 21 connected to the base plate 20.
  • the catch spring 33 ensures that when the handle 16 is moved, the catch 34 bears against the end edge 35 of the base plate 20 of the slide 12. This ensures that the slide 12 is first pushed all the way into its end position before the handle 16 moves relative to the slide. This ensures that the magazine can be closed at any time with little effort.
  • the counter-locking elements 22 are then still in the recesses 27, where they can be run over by the locking springs 18 without resistance. Only then are they pushed outwards by the contact piece 25 to bear against the detent springs 18.
  • the opening force to be overcome when opening the magazine 4 is determined by the height of the cams 28 and the spring force of the detent spring 18 transversely to its direction of extension, that is to say in a direction in which it can be deflected relatively easily.
  • the locking force of the magazine 4 is determined by the size of the wrap angle of the ends 19 around the counter-locking elements 22 and by the spring stiffness of the detent springs 18

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Un dispositif d'enfoncement présente un magasin (4) constitué d'une partie magasin (11) solidaire de l'agrafeuse, ainsi que d'un coulisseau à déplacement longitudinal muni d'une plaque de base (20). Afin d'obtenir, d'une part, un grand effort de verrouillage du coulisseau et, d'autre part, pour pouvoir ouvrir facilement le magasin, un élément de manoeuvre déplaçable (16), auquel est reliée une pièce de contact (25), est fixé sur le coulisseau. La pièce de contact (25) pousse, en position fermée de l'élément de manoeuvre (16), des éléments de contre-crantage (22) respectivement contre un ressort à cran d'arrêt (18). Cependant, dans la position ouverte de l'élément de manoeuvre (16), les éléments de contre-crantage (22) peuvent s'engager dans des évidements (27) de la pièce de contact (25) en libérant le ressort à cran d'arrêt (18).
EP92919415A 1991-09-30 1992-09-17 Dispositif d'enfoncement a obturateur de magasin Expired - Lifetime EP0559861B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4132455 1991-09-30
DE4132455A DE4132455A1 (de) 1991-09-30 1991-09-30 Eintreibgeraet mit magazinverschluss
PCT/DE1992/000793 WO1993006971A1 (fr) 1991-09-30 1992-09-17 Dispositif d'enfoncement a obturateur de magasin

Publications (2)

Publication Number Publication Date
EP0559861A1 true EP0559861A1 (fr) 1993-09-15
EP0559861B1 EP0559861B1 (fr) 1995-07-05

Family

ID=6441764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92919415A Expired - Lifetime EP0559861B1 (fr) 1991-09-30 1992-09-17 Dispositif d'enfoncement a obturateur de magasin

Country Status (5)

Country Link
EP (1) EP0559861B1 (fr)
JP (1) JPH06503275A (fr)
BR (1) BR9205394A (fr)
DE (2) DE4132455A1 (fr)
WO (1) WO1993006971A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609646B2 (en) 2001-02-08 2003-08-26 Black & Decker Inc. Magazine assembly for fastening tool
US6679413B2 (en) 2001-02-08 2004-01-20 Black & Decker Inc. Magazine assembly for fastening tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058114A (en) * 1962-10-16 Haubold
US2501564A (en) * 1945-12-12 1950-03-21 Charles B Goodstein Staple feed for fastener applying machines
NL292697A (fr) * 1963-03-06
DE8703691U1 (de) * 1987-03-12 1988-07-07 Robert Bosch Gmbh, 7000 Stuttgart Magazin für Eintreibgerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9306971A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609646B2 (en) 2001-02-08 2003-08-26 Black & Decker Inc. Magazine assembly for fastening tool
US6679413B2 (en) 2001-02-08 2004-01-20 Black & Decker Inc. Magazine assembly for fastening tool
US6772931B2 (en) 2001-02-08 2004-08-10 Black & Decker Inc. Magazine assembly for fastening tool
US6938812B2 (en) 2001-02-08 2005-09-06 Black & Decker Inc. Magazine assembly for fastening tool
US7185712B2 (en) 2001-02-08 2007-03-06 Black & Decker Inc. Fastening tool apparatus and method for operating the engine of fastening tool
US7527106B2 (en) 2001-02-08 2009-05-05 Black & Decker Inc. Method for operating the engine of fastening tool

Also Published As

Publication number Publication date
DE59202819D1 (de) 1995-08-10
WO1993006971A1 (fr) 1993-04-15
JPH06503275A (ja) 1994-04-14
EP0559861B1 (fr) 1995-07-05
BR9205394A (pt) 1994-06-21
DE4132455A1 (de) 1993-04-01

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