EP2495053A2 - Dispositif d'extrusion - Google Patents

Dispositif d'extrusion Download PDF

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Publication number
EP2495053A2
EP2495053A2 EP12152093A EP12152093A EP2495053A2 EP 2495053 A2 EP2495053 A2 EP 2495053A2 EP 12152093 A EP12152093 A EP 12152093A EP 12152093 A EP12152093 A EP 12152093A EP 2495053 A2 EP2495053 A2 EP 2495053A2
Authority
EP
European Patent Office
Prior art keywords
operating lever
piston rod
holding
lever
holding mechanism
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.)
Withdrawn
Application number
EP12152093A
Other languages
German (de)
English (en)
Other versions
EP2495053A3 (fr
Inventor
Rainer Strobel-Schmidt
Hans Peter Lederle
Peter Ostermeier
Christian Hefele
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP2495053A2 publication Critical patent/EP2495053A2/fr
Publication of EP2495053A3 publication Critical patent/EP2495053A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/0116—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like characterised by the piston driving means
    • B05C17/012—Stepwise advancing mechanism, e.g. pawl and ratchets
    • B05C17/0123—Lever actuated
    • B05C17/0126—Lever actuated comprising an element, e.g. an arc compensating element, articulated at one end on the lever and at the other end on the piston rod driving means, e.g. a pawl

Definitions

  • the invention relates to a dispensing device for squeezing cartridges, comprising a piston rod and a preferably manually driven feed mechanism, wherein the feed mechanism has an operating lever which can be moved for pressing in a Auspressraum against a holding lever, and with a holding mechanism which engage the piston rod and can prevent movement of the piston rod against the feed direction R.
  • Such Auspressieri be used for example in the construction sector for squeezing cartridges that are filled with silicone or other liquid or viscous building materials.
  • These cartridges usually have a cylindrical base body with an outlet opening arranged on an end wall.
  • the opposite end wall is formed by a displaceable in the cylindrical base body stamp, so changed by moving this end wall, the volume of the cartridge and thereby the contents of the cartridge can be pressed out of the discharge opening.
  • the dispensing device allows exact dosage and accurate application of the respective building material.
  • the dispensing device has a piston arranged on a piston rod, which can engage the punch and urge it to press the cartridge against the dispensing opening.
  • the piston rod is driven by a feed mechanism which can be releasably clamped to this piston rod.
  • a holding mechanism is provided which permits movement of the piston rod Piston rod prevented against the feed direction. This ensures that the piston rests against the punch of the cartridge at the beginning of a new squeezing operation and that a free travel of the feed mechanism is prevented.
  • an unlocking mechanism is provided.
  • the unlocking mechanism may deactivate the holding mechanism so that the piston rod can be moved counter to the feed direction.
  • Such Entsperrmechanismus often has a provided on the back of the Auspress réelles lever that can be operated only with the thumb due to this position. However, this operation is often very cumbersome, since the operator must change the grip position on the Auspress réelle and, for example, must release the holding lever of the Auspress réelles.
  • a high manual force is required to operate the Entsperrmechanismus.
  • the object of the invention is to provide a Auspress réelle that allows easier operation of the Entsperrmechanismus and actuation with a lower manual force.
  • a Entsperrmechanismus provided which can engage the holding mechanism and solve this, the Entsperrmechanismus can be selectively coupled to the operating lever such that upon movement of the operating lever in the ejection direction, a release of the Holding mechanism is done.
  • the unlocking mechanism For actuating the unlocking mechanism, therefore, no additional operating element is provided, via which the releasing force is transmitted to the unlocking mechanism and thus to the holding mechanism. Instead, the release force is applied via the operating lever, which can be frictionally coupled with the holding mechanism via the unlocking mechanism.
  • the operating lever is coupled to the holding mechanism so that upon a movement of the operating lever, a deactivation of the holding mechanism and thus a release of the piston rod takes place. This allows for a simple handling of the Auspress réelles, since no additional lever is required.
  • the entire operating lever can be grasped, that is, the entire manual force can be used. As a result, a release of the holding mechanism with a lower manual force or a lower operating force is possible. In the event that the holding mechanism is jammed on the piston rod due to a previously applied high operating force or a very viscous building material, it is also possible to exercise on the operating lever with the entire hand a much larger release force on the holding mechanism.
  • actuating element is provided in a Auspresswait invention on Entsperrmechanismus that the Entsperrmechanismus and thus coupling the holding mechanism to the operating lever.
  • the actuation force for activating the unlocking mechanism is substantially less than the triggering force, since only the coupling of the unlocking mechanism is triggered.
  • the actual release force is then applied to the holding mechanism via the operating lever. Since no large forces must be transmitted with the actuator, free positioning of the actuator is possible.
  • the actuating element is arranged on the ejection device, since this is accessible without changing the grip position.
  • the actuating element is mounted on the operating lever and coupled in an unlocking the operating lever with the holding mechanism. In a deactivated position, the actuator separates the operating lever from the holding mechanism.
  • the positioning of the actuating element on the operating lever has the advantage that a simple operation of the unlocking without a change in the grip position on the Auspress réelle is possible.
  • the actuating element is provided on the side facing away from the holding lever of the operating lever, wherein the actuating element in the deactivated position is flush with a surface of the operating lever and projects in the unlocked position of this surface.
  • the actuator is, for example, spring-loaded from the operating lever, in which unlocking the Entsperrmechanismus is coupled to the operating lever and a release of the piston rod takes place during a movement of the operating lever.
  • the actuator is thus arranged on the operating lever, that the operator can operate the actuator with a finger during normal operation of the Auspress réelles.
  • the operator grips the operating lever on the side facing away from the retaining lever with his fingers and can thereby capture the actuator and press against the retaining lever in the deactivated position. In this position, the unlocking mechanism is decoupled from the operating lever. The operator can then grasp the control lever with his entire hand and squeeze out the cartridge.
  • the unlocking mechanism may for example have a coupling rod, which is non-positively coupled in the unlocked position of the actuating element with the operating lever and via which a transmission of higher release forces is possible.
  • the coupling rod is pivotally coupled at one end to the holding mechanism and mounted with the other end with a slotted guide on the operating lever. That is, in the non-activated state of the unlocking mechanism, in which no frictional connection between the operating lever and the holding mechanism is made, the coupling rod or the unlocking mechanism is so decoupled from the operating lever, that during the Auspressvorgangs no components of the Entsperrmechanismus be moved.
  • the actuating element is used to couple in the unlocked position the coupling rod with the slotted guide, so that a non-positive connection between the operating lever and unlocking mechanism is made.
  • the holding mechanism may, for example, have a clamping plate which can be tilted on the piston rod.
  • the clamping plate is, for example, spring-loaded so tilted against the piston rod, that the piston rod is fixed against the feed direction. If the piston rod, for example, moved by the feed mechanism in the feed direction R, the clamping plate is taken from the piston rod, so that the inclination angle is reduced relative to a plane perpendicular to the piston longitudinal axis, whereby the jamming of the clamping plate is released. If the feed operation is completed, the clamping plate springs back so far that it canted again on the piston rod and prevents the piston rod from slipping back. This allows for easy deactivation of the holding mechanism.
  • the unlocking mechanism can directly engage the clamping plate and reduce the angle of inclination so that the clamping plate is no longer tilted on the piston rod.
  • the feed mechanism may for example comprise a drive pulley, which is mounted on the piston rod and is tilted for moving the piston rod in the feed direction on this.
  • the control lever can attack directly or via additional components on this drive pulley.
  • the operating lever tilts the drive disk on the piston rod. If the operating lever is moved further, the drive disk and thus the piston rod fixed to the drive disk are moved in the feed direction and thus the cartridge is pressed out.
  • the feed device is designed so that, upon actuation of the Entsperrmechanismus this in a movement of the operating lever releases the holding device before a frictional connection between the feed mechanism and piston rod is made.
  • This can be done, for example, that the feed mechanism is provided a small free travel before the feed mechanism is coupled to the piston rod.
  • the feed mechanism is decoupled from the operating lever by actuating the actuating element.
  • FIG. 1 In general, a dispensing device 10 for a cartridge 12 is shown, which is filled, for example, with silicone or another flowable building material.
  • the building material can be filled directly into the cartridge 12 or stored in an additional bag in this.
  • the cartridge 12 has a cylindrical base body 14 with a first end wall 16 and a second opposing end wall 22.
  • a first end wall 16 Provided on the first end wall 16 is an outlet opening 18 to which a grommet 20 is attached.
  • the opposite end wall 22 is here formed by a punch, which is mounted in a feed direction R in the direction of the first end wall 16 slidably in the cylindrical base body 14. Through a Moving the punch in the feed direction R, the volume of the base body 14 is reduced, so that the building material is pressed out of the discharge opening 18.
  • the ejection device 10 here has a housing 26, on which a holding lever 28 and a holding device 30 are provided, into which the cartridge 12 can be inserted, so that it is fixed in the feed direction R in the ejection device 10.
  • a piston rod 32 is provided, which is mounted displaceably in the feed direction R in the housing 26.
  • a piston 34 is provided which can be guided in the feed direction R against the punch.
  • On the housing 26 further includes a feed mechanism 36 is provided which can engage the piston rod 32 and urge them in the feed direction R, and a holding mechanism 38, the piston rod 32, as will be explained below, opposite to the feed direction R can fix.
  • the feed mechanism 36 has a drive pulley 40 and an operating lever 42 which is pivotally mounted on the housing 26. If the operating lever 42 is pivoted in a squeezing A against the holding lever 28, the drive pulley 40 is tilted by the operating lever 42 and thereby tilted on the piston rod 32. If the operating lever 42 is further moved against the retaining lever 28, the operating lever 42 urges the drive pulley 40 and the tilted on the drive pulley 40 piston rod 32 in the feed direction R, whereby the piston 34 moves the punch 24 in the feed direction R and the cartridge 12 is pressed out.
  • a holding mechanism 38 is provided, which is formed here by a clamping plate 44.
  • the clamping plate 44 is pivotally mounted with its upper edge 45 on the housing 26 and is spring loaded so tilted against the piston rod 32, that it is fixed against the feed direction R.
  • the clamping plate 44 is taken from the piston rod 32, so that the angle of inclination is reduced relative to a plane perpendicular to the piston longitudinal axis L level. As a result, the jamming of the clamping plate 44 is released, and the piston rod 32 can be moved relative to the holding mechanism 38 in the feed direction R. If the feed operation is completed, the clamping plate 44 springs back so far that it again canted on the piston rod 32 and thus prevents slippage of the piston rod 32 against the feed direction R.
  • the holding mechanism can be disabled, for example, to remove the cartridge 12 from the Auspress réelle 10 or to reduce the force exerted by the piston rod 32 on the cartridge 12 pressure, so that running of the building material is excluded from the cartridge. This is done by a manual tilting of the clamping plate 44, whereby the tilting of the clamping plate 44 is canceled on the piston rod 32.
  • an unlocking mechanism 46 is provided.
  • the structure and functioning of the in the FIGS. 2 to 5 The dispensing device 10 shown substantially correspond to the in FIG. 1 illustrated dispenser 10, so that the features shown in the Auspress réelle 10 according to the invention are also present.
  • the dispensing device 10 differs only in that the clamping plate 44 for clamping the piston rod 32 with respect FIG. 3 is tilted clockwise. For the sake of clarity are in the FIGS. 2 to 5 individual omitted for the description of the operating principle of the unlocking mechanism 46 components omitted.
  • the Entsperrmechanismus 46 has an actuating element 48 which is provided here on the holding lever 28 facing away from the surface 50 of the operating lever 42. Furthermore, the unlocking mechanism 46 has a coupling rod 52, which is coupled with a first end 54 articulated to the clamping plate 44 of the holding mechanism 38 and is mounted with the other end 56 via a link guide 58 on the operating lever 42. Between actuating element 48 and control lever 42, a spring element is provided, which pushes the actuating element 48 away from the surface 50 of the control lever 42, so that the actuating element 48 protrudes from the surface 50 of the control lever 42.
  • the actuating element 48 locks the slide guide 58, so that the operating lever 42 is frictionally connected via the coupling rod 52 with the holding mechanism 38.
  • the unlocking mechanism 46 is actuated and thereby the clamping plate 44 is tilted by the coupling rod 52, so that the tilting of the clamping plate 44 is released on the piston rod 32, so the holding mechanism 38 is deactivated.
  • the actuating element 48 is pressed against the surface 50 of the operating lever 42, so that the actuating element 48 is substantially flush with the surface 50 of the operating lever 42 ( FIGS. 4 and 5 ). In this position of the actuating element 48, the actuating element releases the sliding guide 58, so that the coupling rod 52 can move freely in the sliding guide 58 and the non-positive connection between the operating lever 42 and the retaining mechanism 38 is interrupted by the unlocking mechanism 46.
  • the drive pulley 40 is tilted on the piston rod and the piston rod 32 moves in the feed direction R, whereby the cartridge 12 is pressed out.
  • the operating lever 42 and the position of the drive pulley 40 is set so that upon actuation of the operating lever 42, a small free travel of the operating lever 42 in the ejection A occurs before the operating lever 42 abuts against the drive pulley 40.
  • the Entsperrmechanismus 46 is contrast constructed so that the free travel of the operating lever 42 for actuating the Entsperrmechanismus 46 and for deactivating the holding mechanism 38 is substantially lower. When pressed actuator 48 thus takes a deactivation of the holding mechanism 38 and thus releasing the piston rod 32 before the feed mechanism 36 can engage the piston rod 32.
  • the operating lever 42 is coupled to the feed mechanism 36 only when the actuating element 48 is actuated, and when the actuating element 48 is released, ie the non-positive coupling of the operating lever 42 with the unlocking mechanism 46, the feed mechanism 36 is decoupled from the operating lever 42.
  • the feed mechanism 36 or the unlocking mechanism 46 is coupled to the operating lever 42, so that a superposition of the functions is precluded.
  • the positioning of the actuator 48 on the control lever 42 allows a squeezing of the cartridge 12 as in a conventional Auspress réelle 10 with the entire manual force.
  • the activation of the Entsperrmechanismus can also be done without changing the grip position by the actuator 48 is moved by releasing a finger in the unlocked position. Since the grip position for deactivating the holding mechanism 38 need not be changed, a quick and safe operation is possible.
  • the actuation element 48 does not have to apply the release force for deactivating the retention mechanism 38, but merely an actuation force which is substantially lower, the actuation element 48 can also be arranged at a different position on the housing 26 or the extrusion device 10.
  • the coupling of the operating lever 42 with the Entsperrmechanismus can also be done in a different way. This does not have to take place via a coupling rod 52 or via a link guide 58.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Earth Drilling (AREA)
EP12152093.6A 2011-03-02 2012-01-23 Dispositif d'extrusion Withdrawn EP2495053A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011004971A DE102011004971A1 (de) 2011-03-02 2011-03-02 Auspressgerät

Publications (2)

Publication Number Publication Date
EP2495053A2 true EP2495053A2 (fr) 2012-09-05
EP2495053A3 EP2495053A3 (fr) 2017-06-07

Family

ID=45655196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12152093.6A Withdrawn EP2495053A3 (fr) 2011-03-02 2012-01-23 Dispositif d'extrusion

Country Status (4)

Country Link
US (1) US20120285982A1 (fr)
EP (1) EP2495053A3 (fr)
CN (1) CN102652934A (fr)
DE (1) DE102011004971A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104340528A (zh) * 2013-07-30 2015-02-11 青岛罗素生物技术有限公司 一种昆虫信息素引诱剂的包装及挤出装置
DE102014117224A1 (de) * 2014-11-25 2016-05-25 Heraeus Medical Gmbh Austragsvorrichtung für Zementkartuschen mit abrollenden Klemmkörpern
CN109420597A (zh) * 2017-09-04 2019-03-05 艾缇高科技材料(上海)有限公司 一种变挡型纵列双管挤胶枪
TWI783825B (zh) * 2021-12-14 2022-11-11 凱馴企業有限公司 具有內殼座的打膠槍

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DE1892067U (de) * 1963-08-16 1964-04-30 Alfred Mohr Kittpresse.
DE3128611C2 (de) * 1981-07-20 1994-07-14 Hilti Ag Dosiergerät für Mehrkomponenten-Massen
FR2526070A1 (fr) * 1982-04-28 1983-11-04 Begouen Jean Paul Moyens pour eviter de facon automatique l'ecoulement subsequent des pistolets a mastic
GB8506010D0 (en) * 1985-03-08 1985-04-11 Ici Plc Extrusion apparatus
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US5235763A (en) * 1991-09-20 1993-08-17 Nosler, Inc. Key-actuated safety for handgun
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US5507727A (en) * 1994-08-02 1996-04-16 Design Standards Corporation Inflation deflation syringe assembly for use in angioplasty procedures
DE19704627A1 (de) * 1997-02-06 1998-08-13 Strobl Beschichtungstechnik Gm Spritzpistole für Feinputz und andere pastöse Massen
US6056156A (en) * 1998-11-12 2000-05-02 Peng; Yuenan Caulking gun with a built-in spout cutter
WO2005097354A1 (fr) * 2004-04-08 2005-10-20 Ray Technology Group B.V. Pistolet a mastic pourvu d'un element de retenue de cartouche
US20080006654A1 (en) * 2006-07-07 2008-01-10 Lampe John K Caulk gun with cutter
US20080083790A1 (en) * 2006-10-06 2008-04-10 Yu-Chun Tseng Extruding mechanism
GB0624709D0 (en) * 2006-12-11 2007-01-17 Cox Ltd Actuator
DE102008063502A1 (de) * 2008-12-17 2010-06-24 Fischbach Kg Kunststoff-Technik Auspresswerkzeug
US20100237105A1 (en) * 2009-03-17 2010-09-23 John Zagone Viscous Material Dispenser
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TWM406468U (en) * 2010-12-31 2011-07-01 Siang Syuan Fu Industry Co Ltd Silicone gun structure with automatically pressure release

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Title
None

Also Published As

Publication number Publication date
US20120285982A1 (en) 2012-11-15
EP2495053A3 (fr) 2017-06-07
DE102011004971A1 (de) 2012-09-06
CN102652934A (zh) 2012-09-05

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