EP2610033B1 - Unité de mâchoires de fixation - Google Patents

Unité de mâchoires de fixation Download PDF

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Publication number
EP2610033B1
EP2610033B1 EP12195624.7A EP12195624A EP2610033B1 EP 2610033 B1 EP2610033 B1 EP 2610033B1 EP 12195624 A EP12195624 A EP 12195624A EP 2610033 B1 EP2610033 B1 EP 2610033B1
Authority
EP
European Patent Office
Prior art keywords
holding
fastening element
holding jaw
jaw unit
mandrel
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.)
Not-in-force
Application number
EP12195624.7A
Other languages
German (de)
English (en)
Other versions
EP2610033A3 (fr
EP2610033A2 (fr
Inventor
Stefan Braach
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.)
Ejot Baubefestigungen GmbH
Original Assignee
Ejot Baubefestigungen 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 Ejot Baubefestigungen GmbH filed Critical Ejot Baubefestigungen GmbH
Priority to PL12195624T priority Critical patent/PL2610033T3/pl
Publication of EP2610033A2 publication Critical patent/EP2610033A2/fr
Publication of EP2610033A3 publication Critical patent/EP2610033A3/fr
Application granted granted Critical
Publication of EP2610033B1 publication Critical patent/EP2610033B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • B25B23/06—Arrangements for handling screws or nuts for feeding screws or nuts using built-in magazine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means

Definitions

  • the present invention relates to a holding jaw unit for a fastening element setting device, in particular for a stand-up tool, with which fastening elements which are supplied by a corresponding transport device, taken and at least temporarily held in view of an optimized setting process.
  • a power driven Eintreibrace known, which is particularly for use in a stand-up tool, comprising a fastener guide and a holding device in which a fastener for driving by means of a driving tool can be automatically picked up and released, and a feed path, which the fastener guide with the holding device connects and in which an intermediate fixing is arranged, in which the fastening means is held in the direction of the same before the supply to the holding device.
  • the intermediate fixing comprises in particular a jaw arrangement which has two jaw shells pivotable about a pin. The pin is arranged parallel to the adjoining the intermediate fixing orientation of a downpipe. Both jaw cups form between them a receiving space for the head of a fastener.
  • the fastener is finally fed to a lower part of a guide tube over which it then passes to the holding device.
  • the fastening means is then held in the direction of the driving axis until the fastening means is fastened in a subsequent assembly process by the driving tool to a workpiece. Due to the fact that pressure must already be exerted on the fastening means in the intermediate fixing in order to transport it further into the holding device for final assembly, a technically complex support or guidance of the fastening means is necessary, which must prevent it from premature tilting.
  • the opening corresponds at least to the nominal diameter of the fastening element.
  • nominal diameter is meant here the diameter of the fastener element shaft and in particular the diameter of the part of the fastener element shank which is directly adjacent to the fastener element head or to a disk pressed thereon.
  • the depression corresponds at least to the corner dimension of the fastener element head or at least to the diameter of a disk pressed against the fastener element head.
  • the fastener which slides from the transport device into the opening of the holding jaws is received or held in this way by the holding jaws.
  • the underside of the fastener element head or the underside of a pressed-on disc is in particular on horizontal bearing surfaces, which are bounded by the opening on the one hand and the recess on the other hand, and thus can not fall out of the also horizontally arranged holding jaws when they are in the closed, i. unactuated state.
  • the relative movement of the mandrel is brought about by a downward movement of the setting device.
  • the mandrel which according to the invention for the actuation of the holding jaws in the Craigbackenbetutzsanowski can be introduced, is regularly directly or indirectly connected to a handle unit of the setting device, so that when an operator applies a downward pressure on the handle unit, the mandrel moves down into the Garbackenbetutzutzsanowski becomes. In this way, an active actuation of the holding jaws can be achieved by a predetermined relative movement of the mandrel relative to the holding jaws.
  • the predetermined relative movement of the mandrel is usually measured so that the holding jaws open only when the drive train of the setting device has come into engagement with the fastener element head.
  • the drive train of the setting device arrives at the same time or almost simultaneously engagement of the mandrel with the retainer jaw actuator assembly in engagement with the fastener head.
  • the mandrel and the drive train regularly perform a common relative movement relative to the setting tool at this stage of operation of the setting device. They can then be decoupled from each other via a suitable coupling mechanism.
  • the holding jaw actuating arrangement can also be actuated, for example, by means of a linkage or a Bowden cable or the like, which interact in a corresponding manner with the drive train.
  • the opening movement of the holding jaws corresponds at least to the corner dimension of the fastener element head or at least the diameter of a pressed-on to the fastener element head disc. This ensures that the fastener does not catch on the holding jaws, if it is to be brought further into the mounting position or if it comes into engagement with the drive train of the setting device. Should the diameter of the drive train be greater than the corner dimension of the fastener element head or, in particular, be larger than the diameter of a pressed-on disk, the opening movement of the holding jaws will be regularly dimensioned such that the drive train can also pass through the open holding jaws.
  • the holding jaw unit is arranged in the axial direction X movable within the setting device.
  • the fastening element can preferably be introduced into a mouthpiece arrangement of the setting device.
  • the holding jaw unit for example, after having received a separated fastening element, can be moved in the direction of a mouthpiece arrangement arranged, for example, in the base of the setting tool, in order to transfer the fastening element into this mouthpiece arrangement for final assembly.
  • the mandrel still does not engage the retainer jaw actuator assembly and the driveline still does not engage the fastener head.
  • the transport device has a curved guide track for the fastening element.
  • the isolated fasteners can slide smoothly into the holding jaw unit whose opening is aligned with the guideway accordingly.
  • the curved guideway is divided into two by a bridge. This is particularly important in the use of such fasteners having a patch on the fastener shank sealing washer.
  • the fastener head and the sealing washer are then each guided in a separate web.
  • the part of the fastener element shaft which lies between the sealing disk and the fastener element head or a sealing disk pressed thereon, slides along the web. This ensures a particularly secure guidance of such fasteners.
  • At least one spring element connected to the holding jaws is actuated by the engagement of the mandrel in the holding jaw actuating arrangement. This represents a particularly simple and effective form of actuation of the holding jaws.
  • Fig. 1 the holding jaw unit 1 according to the invention for a fastening element power supply, in particular for a stand-up tool, shown in the closed ground state.
  • the holding jaw unit 1 is used to receive a via a corresponding transport device 5 (for reasons of clarity, only one half shown) supplied and previously isolated fastener 3, which has a fastener head 3a and a fastener element shaft 3b.
  • the fastening element 3 may optionally, as shown here, also comprise a disk 3c pressed onto the fastening element head 3a.
  • a sealing washer 13 can furthermore be applied to the fastening element shaft 3b.
  • the holding jaw unit 1 has at least two holding jaws 2 and a holding jaw actuating arrangement 4, wherein the holding jaws 2 comprise an opening 6, which is open in the transport direction of the fastening element, for inserting the fastening element 3 and a recess 7 for receiving the fastening element head 3a.
  • the opening 6 and the recess 7 define two bearing surfaces 14, of which the fastener head 3a is kept in the closed state.
  • the opening 6 corresponds at least to the nominal diameter of the fastening element 3 or the diameter of the part of the fastening element shaft 3b adjacent to the pressed-on disk 3c.
  • the depression 7 corresponds at least to the corner dimension of the fastener element head 3a or at least to the diameter of the washer 3c pressed onto the fastener element head 3a.
  • the holding jaw actuating arrangement 4 is arranged. This can be actuated by a guided inside the device mandrel 8 (see. Fig. 3 ).
  • the transport device 5 has a curved guideway 10 for the fastening element 3, in which the fastening element 3 slides from the separating element 15, which is rotatably mounted inside the device, into the closed holding jaws 2.
  • the curved guide track 10 is divided into two by a web 11, wherein in the upper part of the guide track 10 a of the fastener head 3 a and the pressed-disc 3 c slide and in the The lower part of the guide track 10, the sealing disc 13.
  • the web 11 is located on the between the pressed-disc 3c and the sealing washer 13 located part of the fastener element shaft 3b.
  • Below the holding jaw unit 1 is a mouthpiece assembly 9 of the setting tool, in the mouthpiece 16, the fastening means 3 can be kept centered for the assembly process.
  • the fastening element 3 has been transferred from the guideway 10 of the transport device 5 in the opening 6 of the closed holding jaws 2.
  • the head 3a of the fastening element 3 together with the pressed-on disc 3c was received by the recess 7, so that the pressed-on disc 3c rests on the bearing surfaces 14.
  • the thickness of the opening 6 corresponds to the length of the part of the fastener shank 3b, which runs between the top of the sealing washer 13 and the underside of the pressed disc 3c. That is, the wall thickness of the opening 6 corresponds approximately to the wall thickness of the web 11.
  • the fastening element 3 is held by the holding jaw unit 1 centered along the axis X of the setting device.
  • the mandrel 8 in the axial direction X ie, parallel to the axis X of the setting tool, has moved down relative to the holding jaw unit 1, but has not yet engaged the rear engaging portion 4a of the holding jaw actuating assembly 4.
  • the relative or downward movement of the mandrel 8 is brought about by a downward movement of the setting device.
  • an operator exerts a compressive force on a grip part (not shown) of the setting device, which is coupled with the mandrel 8 and possibly also the drive train 12 in a suitable manner.
  • the drive train 12 can also be moved downwards in order to engage with the fastener element head 3a.
  • the holding jaw unit 1 assumes the same position as in the Fig. 1 and 2 ,
  • Fig. 4 illustrates how the holding jaws 2 are actuated by means of the mandrel 8, when the mandrel 8 by a (further) relative to the holding jaw unit 1 in the axial direction X (ie parallel to the X-axis of the setting device) with the holding jaw actuating assembly 4 is engaged is, and thereby causes an opening movement of the holding jaws 2 in the horizontal direction Y (within the plane of the holding jaws).
  • the mandrel 8 is pressed into the rear engaging portion 4a of the holding jaw actuating assembly 4
  • at least one spring element (not shown) connected to the holding jaws 2 is actuated. By actuating this spring element, the holding jaws 2 are pulled apart in the horizontal direction Y.
  • the opening 6 is thereby enlarged such that the pressed onto the fastener head 3a disc 3c and possibly also the drive train 12 of the setting device can pass through them.
  • the centered fastener 3 may then fall into, for example, the funnel-shaped mouthpiece 16 in the mouthpiece assembly 9, where it is kept centered until it is assembled by the drive train 12.
  • the diameter of the mouthpiece 16 is accordingly slightly larger than the diameter of the sealing disc 13.
  • the sealing disc 13 rests against the conical walls of the mouthpiece 16, so that the fastening element 3 can not tilt.
  • the unopened holding jaw unit 1 preferably leads according to FIG Fig. 3 First, a downward movement and inserts the fastener 3 in the mouthpiece 16, before the holding jaws 2 are opened, ie before the mandrel 8 is pressed into the rear engaging portion 4a of the holding jaw actuating assembly 4 and before the drive train 12 engages with the fastener element head 3a.
  • the holding jaw unit 1 is arranged in this case in a suitable manner in the axial direction X movable within the setting device. This downward movement, if appropriate, can be carried out by the holding jaw unit together with the mandrel 8 and the drive train 12, which are then decoupled from the holding jaw unit 1 in a suitable manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Slide Fasteners (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Automatic Assembly (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (11)

  1. Unité à mâchoires de retenue (1) pour un appareil de pose d'éléments de fixation, en particulier pour un outil utilisé debout, destiné à loger un élément de fixation (3) amené par l'intermédiaire d'un dispositif de transport correspondant (5) et comportant une tête d'élément de fixation (3a) et une tige d'élément de fixation (3b), munie d'au moins deux mâchoires de retenue (2) ainsi que d'un agencement de manoeuvre des mâchoires de retenue (4), les mâchoires de retenue (2) présentant une ouverture (6) pour l'introduction d'un élément de fixation (3) ainsi qu'un renfoncement (7) pour le logement de la tête d'élément de fixation (3a),
    caractérisée en ce que
    les mâchoires de retenue (2) peuvent être manoeuvrées à l'aide d'un mandrin (8), le mandrin (8) pouvant entrer en prise avec l'agencement de manoeuvre (4) des mâchoires de retenue grâce à un déplacement relatif dans la direction axiale par rapport à l'unité de mâchoires de retenue (1), ce qui provoque un déplacement de l'ouverture des mâchoires de retenue (2) dans la direction horizontale Y, l'ouverture (6) subissant un agrandissement tel qu'une barre d'entrainement (12) de l'appareil de pose puisse traverser les mâchoires de retenue (2), le mandrin (8) étant alors dissocié de la barre d'entrainement (12), et la barre d'entrainement (12) exerçant lors de sa traversée, au moins d'une manière temporaire, un déplacement relatif découplé du mandrin.
  2. Unité à mâchoires de retenue (1) selon la revendication 1, caractérisée en ce que l'ouverture (6) correspond au moins au diamètre nominal de l'élément de fixation (3).
  3. Unité à mâchoires de retenue (1) selon l'une des revendications précédentes, caractérisée en ce que le renfoncement (7) correspond au moins à l'ouverture angulaire de la tête d'élément de fixation (3a), ou mais au moins au diamètre d'un disque (3c) qui est appuyé contre la tête d'élément de fixation (3a).
  4. Unité à mâchoires de retenue (1) selon l'une des revendications précédentes, caractérisée en ce que le déplacement relatif du mandrin (8) est provoqué par le déplacement de recul de l'appareil de pose.
  5. Unité à mâchoires de retenue (1) selon l'une des revendications précédentes, caractérisée en ce que le déplacement de l'ouverture des mâchoires de retenue (2) correspond au moins à l'ouverture angulaire de la tête d'élément de fixation (3a), ou mais au moins au diamètre d'un disque (3c) qui est appuyé contre la tête d'élément de fixation (3a).
  6. Unité à mâchoires de retenue (1) selon l'une des revendications précédentes, caractérisée en ce que l'unité de mâchoires de retenue (1) est disposée dans la direction axiale X de façon à pouvoir se déplacer à l'intérieur de l'appareil de pose.
  7. Unité à mâchoires de retenue (1) selon la revendication 6, caractérisée en ce que, sous l'effet d'un déplacement de recul dans la direction axiale X de l'unité de mâchoires de retenue (1) non ouverte, l'élément de fixation (3) peut être inséré dans un agencement d'embouchure (9) de l'appareil de pose.
  8. Unité de mâchoires de retenue (1) selon l'une des revendications précédentes, caractérisée en ce que le dispositif de transport (5) est muni d'un chemin de guidage incurvé (10) pour l'élément de fixation (3).
  9. Unité à mâchoires de retenue (1) selon la revendication 8, caractérisée en ce que le chemin de guidage incurvé (10) est divisé en deux par une traverse (11).
  10. Unité à mâchoires de retenue (1) selon l'une des revendications précédentes, caractérisée en ce que les éléments de fixation (3) sont munis d'un disque d'étanchéité (13) disposé sur la tige d'élément de fixation (3b).
  11. Unité à mâchoires de retenue (1) selon l'une des revendications précédentes, caractérisée en ce que la venue en prise du mandrin (8) dans l'agencement (4) de manoeuvre des mâchoires de retenue manoeuvre au moins un élément de ressort relié aux mâchoires de retenue (2).
EP12195624.7A 2011-12-27 2012-12-05 Unité de mâchoires de fixation Not-in-force EP2610033B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12195624T PL2610033T3 (pl) 2011-12-27 2012-12-05 Jednostka szczęk mocujących

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011089954A DE102011089954A1 (de) 2011-12-27 2011-12-27 Haltebackeneinheit

Publications (3)

Publication Number Publication Date
EP2610033A2 EP2610033A2 (fr) 2013-07-03
EP2610033A3 EP2610033A3 (fr) 2015-08-05
EP2610033B1 true EP2610033B1 (fr) 2019-09-11

Family

ID=47290749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12195624.7A Not-in-force EP2610033B1 (fr) 2011-12-27 2012-12-05 Unité de mâchoires de fixation

Country Status (3)

Country Link
EP (1) EP2610033B1 (fr)
DE (1) DE102011089954A1 (fr)
PL (1) PL2610033T3 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE190951C (fr) *
US3662797A (en) * 1970-06-18 1972-05-16 Behring Corp Screwdriving apparatus
US3929176A (en) * 1974-10-25 1975-12-30 Dixon Babette Machine for automatically driving threaded fasteners
DE4407155A1 (de) * 1994-03-04 1995-09-07 Joerg R Bauer Vorrichtung zum Beschicken eines Schraubendrehers mit Schrauben
DE10305041A1 (de) 2003-02-07 2004-08-19 Hilti Ag Zwischenfestlegung
FR2898069B1 (fr) * 2006-03-02 2008-05-23 L R Etanco Soc Par Actions Sim Appareil pour le vissage, semi-automatique, d'elements de fixation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102011089954A1 (de) 2013-08-29
EP2610033A3 (fr) 2015-08-05
PL2610033T3 (pl) 2020-01-31
EP2610033A2 (fr) 2013-07-03

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