EP0321463B1 - Fixation pour appareils auxiliaires - Google Patents

Fixation pour appareils auxiliaires Download PDF

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Publication number
EP0321463B1
EP0321463B1 EP19870904505 EP87904505A EP0321463B1 EP 0321463 B1 EP0321463 B1 EP 0321463B1 EP 19870904505 EP19870904505 EP 19870904505 EP 87904505 A EP87904505 A EP 87904505A EP 0321463 B1 EP0321463 B1 EP 0321463B1
Authority
EP
European Patent Office
Prior art keywords
lever
holding part
aperture
pins
opening
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
EP19870904505
Other languages
German (de)
English (en)
Other versions
EP0321463A1 (fr
Inventor
Wolfgang Schmid
Herbert Wiesner
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 EP0321463A1 publication Critical patent/EP0321463A1/fr
Application granted granted Critical
Publication of EP0321463B1 publication Critical patent/EP0321463B1/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
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/003—Stops for limiting depth in rotary hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle

Definitions

  • the invention relates to a holding part for lateral attachment to a hand tool according to the preamble of the main claim.
  • mounts arranged on additional handles with spring-loaded pressing elements for holding and releasing a depth stop have been described.
  • the attachment of other additional devices such as suction devices, drilling angle meters, etc. is very cumbersome because the pressing elements are so unfavorably arranged that they cannot be easily operated.
  • Another disadvantage is that the pressing elements have to be constantly pressed down by hand during the process of inserting or adjusting the depth stop, and this hand is therefore no longer free.
  • the grooved pressing surface can disengage or the spring must be dimensioned very heavily in the case of heavy use (e.g. impact operation), which makes operation more difficult.
  • the holding part according to the invention with the characterizing features of the main claim has the advantage that the handle end of the locking lever is freely accessible at all times, even if additional devices are inserted laterally into the holding part. Operation is very simple and convenient with one finger. After opening the lock, the lever remains in the open position due to the missing spring even when the finger or hand is removed. This gives the operator both hands free to insert, remove or adjust the additional device (e.g. depth stop). In the locked position, the lever remains self-locking in its position on the circular arc. The lock does not release even in hammer drill or hammer operation. The low gradient of the circular arc path offers additional security, so that even with small displacements of the lever, the toothing still remains in engagement with the additional device. The entire holding part including the lever can be produced entirely in plastic and is therefore inexpensive. In addition, the lever is very easy to assemble with a handle.
  • FIG. 1 shows an additional handle with a holding part in cross section
  • FIG. 2 shows a section along line A-A in FIG. 1.
  • the holding part 1 is arranged laterally on the fastening head 2 of an additional handle 20 for hand machine tools. It is hollow and made of plastic. It has a continuous hexagonal opening 4 parallel to the axial direction of the receiving opening 3 of the fastening head 2, which penetrates through the side walls 5, 6.
  • the holding part 1 has an opening 7 above the opening 4.
  • the side walls 5, 6 have grooves 8, 9 in a vertical extension below the opening 4, in which pins 10, 11 of a lever are guided (see FIG. 2).
  • This carries on its upper side facing the opening 4 a toothing 13 which is transverse to the axial direction of the opening 4 and which corresponds to a toothing in the holding part of an additional device (not shown) which can be inserted into the opening 4.
  • the lever 12 has support pins 14, 15 with resilient extensions 16, 17 at the ends. Below the support pins 14, 15, the lever 12 is tapered to form a handle part 18.
  • control slots 21, 22 are formed in the side walls 5, 6 with an approximately circular-arc-shaped section 23 and an adjoining section 24 deviating from the circular-arc line to the outside.
  • the section 23 is a circular-arc section with one opposite the axis the pin 10, 11 slightly to the right, ie Center point offset in the direction of receiving opening 3, approximately the center point 25.
  • the grip part 18 is tapered so that the support pins 14, 15 in the control slots 21, 22 are given a wide support in order to be able to better derive the clamping force required in the teeth 13.
  • the operation of the holding part 1 for loosening and tightening an additional device is very simple and convenient.
  • the lever 12 is simply pressed on the handle part 18 with a finger in the direction of the additional handle 20 without the hand having to be released from the handle.
  • the support pins 14, 15 reach the section 24 and the pins 10, 11 move along the grooves 8, 9 away from the opening 4, so that this is completely released.
  • the lever 12 remains in the region of the section 24 of the slots 21, 22 even after the operating finger has been removed.
  • the additional device is inserted into the opening 4 or, in the case of a depth stop, moved into the correct position corresponding to the desired drilling depth. Then the lever 12 is also pushed back again with a single finger until the toothing 13 bears firmly on the additional device. So that this is clamped in place.
  • the support pins 14, 15 remain in the circular arc due to self-locking Section 23 of the control slots 21, 22 at a specific point, which depends on the tolerances, especially of the hexagon socket of the additional device.
  • the lever 12 is then more or less perpendicular, but is itself inhibited at every point due to the slight slope in section 23. Retensioning is also possible at any time.
  • the holding part 1 can also be arranged directly on the housing of the handheld power tool or connected in one piece to the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Portable Power Tools In General (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

Une fixation (1) pour appareils auxiliaires tels qu'une butée de profondeur ou similaire servant à les assujettir latéralement à une machine-outil manuelle comprend une découpure (4) et un levier de verrouillage (12) qui resserre la découpure (4). Le levier (12) porte à son extrémité du côté de l'ouverture une denture (13) et dans sa zone centrale des tenons latéraux de support (14, 15) menés dans des fentes de guidage (21, 22) en arc de cercle ayant des sections (24) qui s'écartent de la ligne de l'arc de cercle vers l'extérieur. Le levier (12) se bloque automatiquement dans les fentes de guidage (21, 22) lors du verrouillage. Des ressorts sont tout à fait superflus. Le levier (12) est d'un maniement simple et aisé et il n'est pas nécessaire de le retenir à la main dans sa position de déverrouillage. La construction de l'ensemble de la fixation exclusivement en plastique est très économique.

Claims (4)

1. Pièce de maintien (1) destiné à recevoir des appareils auxiliaires, tels qu'une butée de profondeur, un dispositif d'aspiration, un dispositif de mesure d'angle de perçage, etc..., cette pièce pouvant être rapportée latéralement sur une machine-outil portative, avec une découpure (4) parallèle à la direction axiale du logement de l'outil, et dans laquelle l'appareil auxiliaire peut être bloqué par un élément d'arrêt (12), pièce de maintien caractérisée en ce que l'élément d'arrêt est un levier (12) susceptible de pivoter autour de tourillons (10, 11) orientés transversalement par rapport à son extension longitudinale, ces tourillons (10, 11) étant montés de façon à pouvoir se déplacer longitudinalement dans des gorges (8,9) et le levier (12) portant les tétons d'appui (14, 15) qui viennent en prise dans des fentes de commande (21, 22) dans les parois latérales (5,6) de la pièce de maintien (1), de sorte que le levier (12) lorsqu'il pivote autour des tourillons (10, 11) se rapproche ou s'éloigne de la découpure (4) grâce à quoi l'appareil auxiliaire logé dans la découpure (4) est bloqué ou bien libéré.
2. Pièce de maintien selon la revendication 1, caractérisée en ce que l'extrémité, tournée vers la découpure (4) du levier (12) est munie d'une denture (13) qui s'étend transversalement par rapport à la direction de la découpure (4).
3. Pièce de maintien selon la revendication 1 ou la revendication 2, caractérisée en ce que les tenons d'appui (14, 15) ont des prolongements (16, 17) qui peuvent céder élastiquement vers l'intérieur pour le montage du levier (12).
4. Pièce de maintien selon une des précédentes revendications, caractérisée en ce que les parois latérales (5, 6) de la pièce de maintien (1), sont élargies au-dessous des fentes de commande (21, 22) pour augmenter la surface d'appui pour les tenons d'appui (14, 15).
EP19870904505 1986-08-09 1987-07-18 Fixation pour appareils auxiliaires Expired - Lifetime EP0321463B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19868621430 DE8621430U1 (de) 1986-08-09 1986-08-09 Halterung für Zusatzgerät
DE8621430U 1986-08-09

Publications (2)

Publication Number Publication Date
EP0321463A1 EP0321463A1 (fr) 1989-06-28
EP0321463B1 true EP0321463B1 (fr) 1991-01-30

Family

ID=6797303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870904505 Expired - Lifetime EP0321463B1 (fr) 1986-08-09 1987-07-18 Fixation pour appareils auxiliaires

Country Status (4)

Country Link
EP (1) EP0321463B1 (fr)
JP (1) JP2545567B2 (fr)
DE (2) DE8621430U1 (fr)
WO (1) WO1988000870A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430786A1 (de) * 1994-08-30 1996-03-07 Wolf Geraete Gmbh Vertrieb Führungsstiel für Gartengeräte
US6835030B2 (en) * 2002-06-04 2004-12-28 Credo Technology Corporation Power tool accessory system
DE102006055014A1 (de) 2006-11-22 2008-05-29 Robert Bosch Gmbh Zusatzhandgriff mit Exzenterspannhebel für eine Handwerkzeugmaschine
DE102009047705B4 (de) * 2009-12-09 2014-02-13 Hilti Aktiengesellschaft Zusatzgriff
DE102010005535A1 (de) * 2010-01-23 2011-09-08 Metabowerke Gmbh Arretiervorrichtung zur Arretierung eines Tiefenanschlagstabs, Zusatzhandgriff und handgeführte Werkzeugmaschine
DE102013213284A1 (de) * 2012-08-03 2014-02-06 Robert Bosch Gmbh System

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7613952U1 (de) * 1976-05-03 1976-09-02 Hilti Ag, Schaan (Liechtenstein) Bohrmaschine mit tiefenanschlag
DE2832429A1 (de) * 1978-07-24 1980-02-14 Hilti Ag Bohrmaschine mit bohrtiefenanschlag
DE2918586A1 (de) * 1979-05-09 1980-11-13 Duss Maschf Bohrmaschine mit tiefenanschlag
GB2050881B (en) * 1979-06-19 1983-01-06 Kango Electric Hammers Ltd Depth stop for a drilling tool
DE8006965U1 (de) * 1980-03-14 1981-08-27 Robert Bosch Gmbh, 7000 Stuttgart Zusatzhandgriff fuer eine handwerkzeugmaschine
DE3126245C2 (de) * 1981-07-03 1993-10-07 Bosch Gmbh Robert Profilstab zur Verwendung als Bohrtiefenanschlag an Handwerkzeugmaschinen
DE8318425U1 (de) * 1983-06-25 1983-10-27 C. & E. Fein Gmbh & Co, 7000 Stuttgart Zusatzhandgriff fuer handgefuehrte werkzeuge

Also Published As

Publication number Publication date
WO1988000870A1 (fr) 1988-02-11
JPH01503527A (ja) 1989-11-30
EP0321463A1 (fr) 1989-06-28
JP2545567B2 (ja) 1996-10-23
DE3767887D1 (de) 1991-03-07
DE8621430U1 (de) 1987-12-10

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