EP4382253A1 - Outil de pose pour poser une cheville en matériau isolant - Google Patents

Outil de pose pour poser une cheville en matériau isolant Download PDF

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Publication number
EP4382253A1
EP4382253A1 EP23213587.1A EP23213587A EP4382253A1 EP 4382253 A1 EP4382253 A1 EP 4382253A1 EP 23213587 A EP23213587 A EP 23213587A EP 4382253 A1 EP4382253 A1 EP 4382253A1
Authority
EP
European Patent Office
Prior art keywords
pressure piece
abutment
setting tool
insulation
setting
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.)
Pending
Application number
EP23213587.1A
Other languages
German (de)
English (en)
Inventor
Timo Ganszki
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.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke GmbH and Co 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
Application filed by Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Publication of EP4382253A1 publication Critical patent/EP4382253A1/fr
Pending legal-status Critical Current

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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
    • B25B31/00—Hand tools for applying fasteners

Definitions

  • the invention relates to a setting tool for setting an insulation dowel with the features of the preamble of claim 1.
  • Insulation dowels are known that have a disc-shaped retaining plate that is attached to a building wall with a fastening screw through an insulation board.
  • the retaining plate is either sunk into the insulation board and then covered with a so-called washer, or the retaining plate is placed flush with the surface of the insulation board.
  • the washer is a disc made of insulation that is the same size as or slightly larger than the retaining plate.
  • Insulation boards are made of foamed plastic, for example, and are usually part of a thermal insulation composite system (ETICS) for insulating a building.
  • ETICS thermal insulation composite system
  • the patent application EP 3 978 194 A1 discloses a setting tool for fastening such an insulation anchor, optionally with a countersunk or surface-flush retaining plate.
  • the known setting tool has a circular hole-disk-shaped abutment, which stops an axial movement of the setting tool by placing it on an insulation board, and a pressure piece that protrudes axially through a center hole of the abutment and countersunk the retaining plate of the insulation anchor into the insulation board. If the pressure piece is removed, which requires the setting tool to be converted, the retaining plate is placed flush on the insulation board.
  • the object of the invention is to propose a setting tool for an insulation dowel, which has a simple adjustment option for setting the insulation dowel either with a countersunk or flush-mounted holding plate.
  • the setting tool has a drive shaft with a rotation axis for transmitting a rotation of a rotary drive tool to a fastening screw of an insulation dowel, a pressure piece for transmitting a pressure force on a retaining plate of the insulation anchor and an abutment radially outside the pressure piece.
  • the rotary drive tool is, for example, a cordless or pneumatic screwdriver or a drill.
  • a rear end of the drive shaft is clamped, for example, in a jaw chuck of the rotary drive tool or inserted in a rotationally and axially fixed manner into a quick-release coupling of the rotary drive tool.
  • a front end of the drive shaft is designed to be attached to or in a tool seat of the fastening screw in a rotationally fixed manner by means of a positive locking. It has, for example, a bit holder with a screw bit that corresponds to the tool seat.
  • the tool seat is, for example, an internal star, internal or external triangle, square or hexagon, a slot or Phillips; the list is not exhaustive.
  • the pressure piece has, for example, a front surface that is radial to the axis of rotation, i.e. in a radial plane to the axis of rotation, as a pressure surface, which comes into contact with the holding plate of the insulation dowel when the setting tool is axially advanced to set the insulation dowel and transfers an axial pressure force from the setting tool to the holding plate for axial advancement of the insulation dowel.
  • "Setting" the insulation dowel here means the fastening of the holding plate of the insulation dowel flush with the surface or countersunk in an outer side of an insulation board with the fastening screw through the insulation board in a building wall.
  • the insulation board is or will be arranged adjacent to the building wall and fastened to the building wall with several insulation dowels.
  • the outer side of the insulation board is a side of the insulation board facing away from the building wall.
  • the abutment is arranged radially outside the pressure piece, in particular it encloses the pressure piece, in particular in the form of a circular ring.
  • the abutment rests against the insulation board at the end of the setting process and thereby ends the axial advance of the setting tool, i.e. when the abutment rests on the outside of the insulation board. This means that the advance of the setting tool ends when the abutment of the setting tool rests on the outside of the insulation board.
  • the setting tool according to the invention has an adjusting element that can be moved by hand in relation to the drive shaft, with which an axial offset of the pressure piece in relation to the abutment can be set or adjusted.
  • the axial offset between the abutment and the pressure piece can be selected so that the holding plate of the insulation dowel is either sunk into the insulation board or is flush with the surface of the insulation board after the end of the setting process, i.e. when the abutment of the setting tool has rested on the insulation board.
  • More than two settings of the axial offset between the abutment and the pressure piece, in particular several positions for sinking at different depths in the insulation, are possible.
  • "Flush with the surface” here means that the holding plate rests on or is flush with the outside of the insulation board.
  • “Movable by hand” means that the adjusting element can be moved to adjust the axial offset between the abutment and the pressure piece without the setting tool having to be dismantled and/or broken down into parts using a tool or in another way.
  • the ability to move by hand does not in principle exclude adjustment using a tool, provided that the tool is used to adjust the axial offset and not to dismantle the tool or to remove parts of the tool.
  • the adjusting element can be rotated in relation to the drive shaft, preferably about the axis of rotation, and generates an axial movement between the abutment and the pressure piece through the rotation.
  • An advantage of the invention is the simple and quick adjustment between flush and countersunk setting of the retaining plate by hand, without having to modify or disassemble the setting tool, which regularly requires additional tools.
  • the adjusting element has two end positions. In a first end position, the abutment and the pressure piece have an axial offset such that the retaining plate of the insulation dowel is sunk into the insulation board when the abutment of the setting tool is seated on the outside of the insulation board. In a second end position of the adjusting element, the abutment and the pressure piece are flush with each other, i.e. they have no axial offset, or they have such a small axial offset that the retaining plate of the Insulation anchor is still flush with the outside of the insulation board when the abutment is resting on the outside of the insulation board.
  • the assignment of the first and second end positions of the insulation holder is arbitrary and could also be assigned conversely to the countersunk and flush setting of the retaining plate.
  • One embodiment of the invention provides that the adjusting element for adjusting the axial offset of the abutment to the pressure piece can be rotated about the rotation axis in relation to the pressure piece and moves the pressure piece axially in relation to the abutment during rotation.
  • This is possible, for example, with a screw gear, whereby a rotational mobility of less than a full turn, for example a quarter, third or half turn, i.e. a rotation of 90°, 120° or 180°, is sufficient for adjustment between the countersunk and the surface-flush setting of the holding plate in embodiments of the invention.
  • One embodiment of the invention provides a cam control for generating the axial movement of the pressure piece in relation to the abutment from the movement, in particular from the rotation of the actuating element.
  • the cam control has, for example, a helical control cam that is coaxial with the axis of rotation and has a constant or changing pitch, which converts the rotation of the actuating element into an axial movement similar to a screw gear, which moves the pressure piece axially in relation to the abutment.
  • the cam control can also have several helical control cams that are used simultaneously, in particular with the same shape, for example several spirals with an offset in the circumferential direction.
  • One or more sections of the control curve without a slope are possible.
  • one or both end positions of the actuating element can be assigned to one or two sections of the control curve without a slope.
  • the sections of the control curve without a slope ensure a stable position against unwanted axial movement.
  • the control curve can also have one or more sections without a slope between the end positions, which, for example, allow different axial offsets between the abutment and the pressure piece and thus allow the retaining plate to be sunk to different depths.
  • One embodiment of the invention provides a flange that encloses the pressure piece and is axially movable relative to the pressure piece as an abutment.
  • the flange is a perforated disk with the pressure piece in the center hole.
  • Windows, i.e. openings, holes, cutouts and through-holes, recesses or the like in the flange improve the view of the retaining plate of the insulation dowel and of a screw head of the fastening screw of the insulation dowel for positioning the drive shaft of the setting tool according to the invention on the tool seat of the fastening screw and when setting the insulation dowel.
  • Such windows in the abutment are advantageous, but not essential for the invention.
  • a preferred embodiment of the invention provides a slot as a control cam or as part of the control cam of the cam control for adjusting and setting the axial offset between the abutment and the pressure piece.
  • the slot is located in a peripheral wall of the tubular pressure piece and has a slope in relation to the axis of rotation of the setting tool according to the invention. The slope can change and the slot can have one or more sections without a slope.
  • the setting tool according to the invention forms a fastening system with an associated insulation dowel.
  • the setting tool 1 according to the invention shown in the drawing is intended for an optionally countersunk or surface-flush setting of an insulation anchor 2, the Figure 4
  • the setting tool 1 and the insulation anchor 2 together form a fastening system.
  • the insulation dowel 2 has a tubular hollow shaft 3, an expansion dowel 4 at one end and a circular disk-shaped retaining plate 5 at another end of the hollow shaft 3.
  • the insulation dowel 2 is used to attach an insulation panel (not shown) made of, for example, a solid foam to a building wall (also not shown), which serves as an anchoring base.
  • the insulation dowel 2 with the expansion dowel 4 first is inserted through the insulation panel into an anchor hole in the building wall until the retaining plate 5 either rests on an outer side of the insulation panel facing away from the building wall or the retaining plate 5 is countersunk into the insulation panel in such a way that a disc made of insulation the size of the retaining plate 5 can be placed in a recess on the retaining plate 5.
  • retaining plate 5 rests on the outside of the insulation board, this is referred to as a flush setting of the insulation anchor 2 or its retaining plate 5.
  • a fastening screw 6 screwed through the hollow shaft 3 into the expansion anchor 4 spreads the expansion anchor 4 in the building wall and anchors the insulation anchor 2.
  • the expansion anchor 4 is not absolutely necessary. If the building wall is made of wood, for example, the hollow shaft 3 can be used without the expansion anchor 4 and the fastening screw 6 can be screwed directly into the building wall as an anchoring base.
  • the setting tool 1 serves for setting the insulation dowel 2 either countersunk or flush with the surface, whereby "setting” means the fastening of the insulation board with the insulation dowel 2 as explained above.
  • the setting tool 1 has a drive shaft 8 with a rotation axis 7, a pressure piece 9, an abutment 10 and an adjusting element 11, wherein in the exemplary embodiment the rotation axis 7 of the drive shaft 8, the pressure piece 9, the abutment 10 and the adjusting element 11 are coaxial.
  • the drive shaft 8 which axially penetrates the setting tool 1, transmits a rotary movement from a rotary drive tool (not shown), such as a cordless screwdriver, to the fastening screw 6.
  • a rotary drive tool such as a cordless screwdriver
  • a rear end of the drive shaft 8 is designed to be clamped in a jaw chuck of the rotary drive tool or to be inserted in a rotationally fixed and axially pressure-resistant manner into a quick-clamping device of the rotary drive tool.
  • the rear end of the drive shaft 8 has a hexagon 12.
  • a front end 13 of the drive shaft 8 is designed to be attached in a rotationally fixed manner by means of a positive locking mechanism to or in a tool seat on or in a screw head 14 of the fastening screw 6.
  • the screw head 14 has an internal star.
  • the front end of the drive shaft 8 is designed in a star shape to match this.
  • Other possibilities are a hexagon, a transverse slot or a Phillips slot.
  • the list is exemplary and not exhaustive.
  • a bit holder with a bit that fits the tool seat of the screw 6 would be possible.
  • the pressure piece 9 has a hollow cylinder with a perforated disk-shaped end wall 15 at a front end, into which the drive shaft 8 is screwed for connection, such that the front end 13 of the drive shaft 8 protrudes from the end wall 15.
  • the drive shaft 8 and the pressure piece 9 are rotationally and axially fixed after screwing. Due to its hollow cylindrical shape, the pressure piece 9 can be understood as tubular. Screwing the drive shaft 8 and the pressure piece 9 is not absolutely necessary. Alternatively, the drive shaft 8 and the pressure piece 9 could be welded, glued or made in one piece. Instead of a rotationally fixed connection, the pressure piece 9 could also be rotatable in relation to the drive shaft 8.
  • the adjusting element 11 is arranged on the hollow cylindrical pressure piece 9 so as to be rotatable about the rotation axis 7.
  • the adjusting element 11 is cylindrical and encloses the pressure piece 9 coaxially.
  • the abutment 10 has a perforated disk which is axially fixed to a front end, i.e. to the front end of the adjusting element 11. is arranged which is closer to the front end 13 of the drive shaft 8 than to the rear end of the drive shaft 8.
  • the abutment 10 has windows 16, i.e. openings, holes, cutouts, recesses or the like, through which a view or a better view from a rear side of the setting tool 1 to the front end 13 of the drive shaft 8 is possible.
  • the abutment 10 can also be understood as a flange in a radial plane of the rotation axis 7, which encloses the pressure piece 9.
  • the abutment 10 is axially fixed to the actuating element 11.
  • the abutment 10 enclosing the pressure piece 9 is located radially outside the pressure piece 9.
  • the abutment 10 can be adjusted axially by hand in relation to the pressure piece 9 in order to set the insulation dowel 2 with the retaining plate 5 either sunk into the insulation board or flush with the surface. This means that an axial offset of the abutment 10 in relation to the pressure piece 9 can be adjusted or set by hand by simply turning the adjusting element 11 around the drive shaft 8 or the axis of rotation 7. In the exemplary embodiment, the abutment 10 is adjusted axially by turning the adjusting element 11 on the pressure piece 9 or generally in relation to the pressure piece 9.
  • the setting tool 1 for adjusting or setting the axial offset of the abutment 10 in relation to the pressure piece 9, the setting tool 1 according to the invention in the embodiment has a cam control 17 with a control cam 18, which in Figures 1 and 2 is drawn with dashed lines.
  • the control curve 18 is a spiral groove in an outer circumference of the pressure piece 9 that is coaxial with the axis of rotation 7.
  • "Spiral" means that the groove or the control curve 18 has a slope.
  • the control curve 18 has a constant slope, but this is not mandatory for the invention.
  • a front or radially inner end of a pin screw 19 engages in the control curve 18.
  • the pin screw 19 is screwed radially to the axis of rotation 7 through a peripheral wall of the cylindrical tubular adjusting element 11 and has a threadless section at its front end that engages in the control curve 18 of the adjusting element 11.
  • the threadless section at the front end of the pin screw 19 can also be understood as a pin.
  • the pin screw 19 is part of the cam control 17 for adjusting or setting the axial offset of the abutment 10 in relation to the pressure piece 9.
  • a rotation of the adjusting element 11 on the pressure piece 9 and thus a rotation of the adjusting element 11 in relation to the drive shaft 8 generates the axial movement of the abutment 10, which in the embodiment is axially fixed to the adjusting element 11, in relation to the pressure piece 9 via the cam control 17.
  • the axial offset of the abutment 10 in relation to the pressure piece 9 can be set or adjusted by manually rotating the adjusting element 11.
  • the abutment 10 can be set between a Figure 1 shown position, in which the pressure piece 9 projects axially on the front side relative to the abutment 10, and a Figure 2 shown position, in which the abutment 10 is flush with the front face of the pressure piece 9.
  • the axially protruding position of the pressure piece 9 in relation to the abutment 10 is associated with the countersunk setting and the position of the pressure piece 9 flush with the abutment 10 is associated with the surface-flush setting of the retaining plate 5 of the insulation anchor 2.
  • control curve 18 At the end of the control curve 18, into which the pin screw 19 engages when the pressure piece 9 protrudes axially relative to the abutment 10, the control curve 18 has a short section without a gradient in order to avoid an unwanted axial movement of the pressure piece 9 protruding relative to the abutment 10.
  • the two ends of the control curve 19 define two axial end positions of the abutment 10 in relation to the pressure piece 9 and thus two axial offset positions of the abutment 10 in relation to the pressure piece 9.
  • the insulation dowel 2 is inserted with its expansion dowel 4 leading through the insulation panel (not shown) into the anchor hole in the building wall (also not shown) until the retaining plate 5 of the insulation dowel 2 rests on the outside of the insulation panel.
  • the setting tool 1 according to the invention is placed on the insulation dowel 2 in such a way that the front end 13 of the drive shaft 8 reaches the tool seat in the screw head 14 of the fastening screw 6.
  • the setting tool 1 is driven in rotation, with its drive shaft 8 transmitting the rotation to the fastening screw 6, which is screwed into the expansion dowel 4, spreading it open and thereby anchoring the insulation dowel 2 in the building wall.
  • the pressure piece 9 rotates with the drive shaft 8 and drives the retaining plate 5 of the insulation anchor 2 by means of pins 20 which protrude axially parallel from the front face of the pressure piece 9 and engage in the window 16 in the retaining plate 5.
  • a Axial movement of the setting tool 1 when screwing the fastening screw 6 into the expansion anchor 4 is transferred from the pressure piece 9 of the setting tool 1 to the holding plate 5 of the insulation anchor 2.
  • the rotary drive of the setting tool 1 is terminated when the abutment 10 is seated on the outside of the insulation board. If the pressure piece 9 protrudes axially from the abutment 10, the retaining plate 5 of the insulation dowel 2 is sunk into the insulation board when the setting tool 1 is moved axially when the fastening screw 6 is screwed into the expansion dowel 4 until the abutment 10 is seated on the outside of the insulation board. If the abutment 10 is flush with the front face of the pressure piece 9, the insulation dowel 2 is set with its retaining plate 5 flush with the surface of the insulation board.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP23213587.1A 2022-12-08 2023-12-01 Outil de pose pour poser une cheville en matériau isolant Pending EP4382253A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022132644.6A DE102022132644A1 (de) 2022-12-08 2022-12-08 Setzwerkzeug zum Setzen eines Dämmstoffdübels

Publications (1)

Publication Number Publication Date
EP4382253A1 true EP4382253A1 (fr) 2024-06-12

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ID=89073162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23213587.1A Pending EP4382253A1 (fr) 2022-12-08 2023-12-01 Outil de pose pour poser une cheville en matériau isolant

Country Status (2)

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EP (1) EP4382253A1 (fr)
DE (1) DE102022132644A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2786840A2 (fr) * 2013-04-05 2014-10-08 fischerwerke GmbH & Co. KG Appareil de pose et sa combinaison avec un élément de fixation
EP3978194A1 (fr) 2020-10-01 2022-04-06 RANIT-Befestigungssysteme GmbH Outil de montage permettant de monter un panneau isolant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2786840A2 (fr) * 2013-04-05 2014-10-08 fischerwerke GmbH & Co. KG Appareil de pose et sa combinaison avec un élément de fixation
EP3978194A1 (fr) 2020-10-01 2022-04-06 RANIT-Befestigungssysteme GmbH Outil de montage permettant de monter un panneau isolant

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Publication number Publication date
DE102022132644A1 (de) 2024-06-13

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