EP2298453B1 - Dispositif d'extrusion - Google Patents

Dispositif d'extrusion Download PDF

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Publication number
EP2298453B1
EP2298453B1 EP10174106.4A EP10174106A EP2298453B1 EP 2298453 B1 EP2298453 B1 EP 2298453B1 EP 10174106 A EP10174106 A EP 10174106A EP 2298453 B1 EP2298453 B1 EP 2298453B1
Authority
EP
European Patent Office
Prior art keywords
ring gear
locking element
out device
circumference
gear
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.)
Active
Application number
EP10174106.4A
Other languages
German (de)
English (en)
Other versions
EP2298453A3 (fr
EP2298453A2 (fr
Inventor
Christian Hefele
Hans Peter Lederle
Zoran Mitrovic
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 EP2298453A2 publication Critical patent/EP2298453A2/fr
Publication of EP2298453A3 publication Critical patent/EP2298453A3/fr
Application granted granted Critical
Publication of EP2298453B1 publication Critical patent/EP2298453B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05C17/0103—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 with electrically actuated piston or the like

Definitions

  • the invention relates to a squeezing device for mass-containing container, referred to in the preamble of claim 1. Art.
  • Containers include, for example cartridges with one or more receiving spaces for one or more components of the mass to be applied, the direct or z.
  • B. in foil bags are provided in the receiving spaces of the cartridge.
  • the term "container” also includes foil bags filled with one or more components of the mass to be delivered, which are inserted into a separate receiving body or arranged on the ejection device.
  • a squeezing device for mass-containing container which has a respect to the receiving space displaceable piston rod and a squeezing device.
  • the ejection device comprises a drive wheel for advancing the piston rod, a motor for driving the drive wheel and an intermediate between the drive wheel and the engine planetary gear with a Gereterotationsachse and with a ring gear, which is provided at its periphery with a plurality of mutually spaced recesses. Further, an operation switch for operating the motor is provided.
  • a blocking element for the ring gear is provided, which can be transferred from a blocking position for blocking the ring gear of the planetary gear in a release position for releasing this ring gear.
  • the motor Upon actuation of the actuating switch, the motor is activated, for. B. via an appropriate control or powered directly.
  • the drive wheel is set in rotation via the planetary gear and advanced the piston rod over a predetermined amount. With each advance of the piston rod, a corresponding amount of the mass is discharged through a discharge opening.
  • the Actuator switch When operating the Actuator switch is simultaneously transferred to the operating switch directly connected to the blocking element in the release position along a linear guide slot.
  • the blocking element In the unactuated state of the operating switch, the blocking element is in the blocking position in which the ring gear is blocked and in which the piston rod, z. B. for inserting a new or other container in the receiving space in their initial position can be transferred.
  • a disadvantage of the known solution is that the drive train is complex in construction and the blocking element requires a large space within the extrusion device.
  • the object of the invention is to provide a squeezing device for mass-containing container, which does not have the aforementioned disadvantages and in particular allows easy return of at least one piston rod to its initial position.
  • a separate unlocking switch for actuating the locking element is provided and the locking element is for transferring the same from the locking position into the release position about a pivot axis pivotable.
  • the inventive extrusion device is characterized in that the pivot axis of the locking element extends transversely to the gear rotation axis of the planetary gear.
  • the installation space required in the squeezing device is significantly reduced compared to a linearly displaceable blocking element, which makes possible the formation of a compact and easily manageable squeezing device.
  • the blocking element can be easily transferred from the blocking position into the release position or from the release position into the blocking position.
  • a force reduction can be provided in the pivotable locking element, which ensures easy operation of the locking element in the use of the squeezing and which is not or only partially feasible in an axially displaceable locking element.
  • the drive train of the ejection device is designed such that the at least one piston rod in the release position of the locking element can be easily moved manually relative to the receiving space.
  • the unlocking switch for the blocking element can be actuated independently of the actuating switch.
  • the operating switch may be a potentiometer switch which activates the motor based on the path taken by the operating switch. This type of operating switch allows the application of user-adjusted Auspressmengen the mass in the container. Is the blocking element, as in a squeezing according to the DE 34 28 202 A1 , Coupled directly with the operating switch, it must be fully actuated for the transfer of the blocking element from the blocking position to the release position.
  • the planetary gear is advantageously a transmission gear and is further advantageously designed in multiple stages.
  • the advantageous multiple stages of the planetary gear are arranged coaxially to each other, for example, on a Gereterotationsachse, which allows a simple and compact design of the drive train.
  • the unlocking switch and the blocking element are two separate elements which can be brought into operative connection for actuating the blocking element as needed.
  • the two-part design allows the production of the same with simple and thus economic forms and a simple replacement of the corresponding element, if this is worn over a certain period of use.
  • the unlocking switch and the blocking element form a common element.
  • the pivot axis of the blocking element extends transversely to the gear rotational axis of the planetary gear, whereby the blocking element can be arranged in a particularly space-saving manner for pivoting and swiveling into the recesses of the ring gear.
  • the pivot axis is perpendicular to a plane containing the gear rotation axis.
  • the squeezing device preferably has a housing and the actuating switch for actuating the motor is provided on a housing side of the housing of the squeezing device facing the receiving space, and the unlocking switch is provided on a housing side of the housing facing away from the receiving space.
  • the housing side facing the receiving space is, for example, a portion of a handle of the squeezing device, which advantageously extends substantially perpendicular with respect to the longitudinal extent of the at least one piston rod or to the squeezing direction.
  • the actuating switch is advantageously operable by the index finger and / or the middle finger, wherein the unlocking switch is actuated by the thumb of the same hand.
  • the squeezing is particularly easy to use and manageable.
  • the blocking element is spring-loaded via a spring element, whereby the blocking element is automatically forced into the preferred position.
  • the blocking element is spring-loaded in such a way that it is in the blocking position in the unactuated state of the actuating switch.
  • the spring element is advantageously a helical spring and particularly advantageously a helical compression spring.
  • the blocking element advantageously extends from the pivot axis in two, substantially opposite directions, wherein a part of the locking element penetratable into the recesses of the ring gear engagement portion and the other part an actuating portion with an engagement surface for the spring element and further advantageous with an attack surface for forms the unlocking switch.
  • the recesses on the circumference of the ring gear grooves with mutually parallel side walls which is given in the blocking position of the locking element as a result of this embodiment, a blockage of the ring gear in both rotational directions of the ring gear.
  • the recesses on the circumference of the ring gear grooves which each have a starting from an initial depth, in the direction of the circumference in depth decreasing bottom portion with respect to the circumference of the ring gear, whereby in the blocking position of the locking element is a blockage of the ring gear in given a corresponding direction of rotation of the ring gear and in the other direction of rotation automatic disengagement of the locking element is possible.
  • the bottom section which decreases in depth, runs out towards the circumference of the ring gear, whereby the grooves do not have a side wall on one side. In such a trained ring gear this is advantageously arranged such that the at least one piston rod, z. B. for a fast feed when changing to a semi-pressed container or for the transport of the squeezing, can be manually advanced in a direction of rotation of the ring gear without actuation of the locking element.
  • the in the FIGS. 1 to 4 illustrated squeezing device 11 for mass-containing container 33 has a receiving space 12 for the container 33, a displaceable relative to the receiving space 12, perforated piston rod 13 and an electrically actuated squeezing device 16.
  • a pressure piston 14 is provided for acting on the container 33 and the mass therein.
  • the squeezing device 16 is arranged in a housing 17, from which extends a handle 30 which has a housing side 18 facing the receiving space 12. At the free end of the handle 30, a battery pack 19 is releasably fixed.
  • the press-out device 16 comprises a toothed wheel as a drive wheel 21, whose teeth engage in the advancement of the piston rod 13 in their perforations. Furthermore, the ejection device 16 comprises a motor 22 for driving the drive wheel 21 and a multi-stage planetary gear 23 interposed between the drive wheel 21 and the motor 22.
  • the planetary gear 23 has a gear rotation axis 24 and, in addition to other transmission components such as sun gears and planet gears, a ring gear 25 on.
  • the ring gear 25 is provided at its periphery 29 with a plurality of mutually spaced recesses 26.
  • the recesses 26 on the circumference 29 of the ring gear 25 are grooves with mutually parallel side walls 27th
  • a blocking element 36 is provided which is pivotable about a pivot axis 37 from a blocking position (FIG. Fig. 2 ) for blocking the ring gear 25 of the planetary gear 23 in a release position ( Fig. 3 ) is pivotable to release this ring gear (25).
  • the pivot axis 37 of the locking element 36 extends transversely to the gear rotation axis 24 of the planetary gear 23.
  • a separate unlocking switch 41 is provided, which is fixed via a hinge 42 pivotally mounted on the housing 17.
  • a potentiometer switch is provided as an actuating switch 31 for actuating the motor 22.
  • the unlocking switch 41 is provided on the receiving space 12 facing away from the housing side 20 of the housing 17. In this example, the unlocking switch 41 is located at the rear end of the housing 17 with respect to the squeezing direction of the squeezing device 11.
  • the locking member 36 extends with respect to the pivot axis in two opposite directions, wherein the one portion forms an engaging into the recesses 26 of the ring gear 25 engaging portion 38 of the locking element 36 and the other portion of the actuating portion 39 of the locking element 36.
  • a helical compression spring 46 is provided as a spring element which urges the locking element 36 and this forces in its blocking position as the preferred position of the locking element 36.
  • the motor 22 Upon actuation of the actuating switch 31, the motor 22 is supplied with power from the battery pack 19 and activated via a controller, not shown here.
  • the control is set so that the motor 22 is energized only for a certain time.
  • the motor 22 rotates the components of the planetary gear 23 in rotation, wherein the ring gear 25 is locked via the locking element 36.
  • the torque generated by the motor 22 is transmitted to the drive wheel 21, which in turn advances the piston rod 13 by the appropriate amount in the direction of the receiving space 12. This process is repeated until the desired amount of mass contained in the container 33 is applied.
  • the unlocking switch 41 is actuated.
  • the blocking element 36 is pivoted against the spring force of the spring element 46 about the pivot axis 37 and transferred into its release position ( Fig. 3 ), in which the ring gear 25 can rotate freely.
  • the piston rod 13 can be manually withdrawn or advanced despite the constant with the piston rod 13 in engagement drive wheel 21, since this rotates empty due to the now freely rotatable ring gear 25.
  • the blocking element 36 is returned by the spring element 46 into its blocking position (FIG. Fig. 2 ) forced.
  • the container 33 is now removed from the receiving space 12 of the extrusion device 11.
  • the operating switch 31 is actuated directly after inserting the new container into the receiving space 12, so that the piston rod 13 is advanced by the motor 22 until it rests on the container or on the mass to be squeezed out.
  • ring gear 55 is also provided at its periphery 59 with a plurality of mutually spaced recesses 56 which are formed as grooves.
  • These recesses 56 each have, with respect to the circumference 59 of the ring gear 55, a bottom portion 60 extending from an initial depth T and decreasing in the direction of the circumference 59 in the depth U.
  • the bottom portion 60 of the recesses 56 extends in each case ramp-shaped.
  • the recesses 56 thus each have two different-length side walls 57 and 61, wherein the side wall 61 is smaller than the side wall 57.
  • the bottom section which decreases in depth, runs out toward the circumference 59 of the ring gear 55, so that the recesses formed as grooves each have only the side wall 57.
  • the engagement portion 68 of the pivotable about the pivot axis 67 locking element 66 is for locking the ring gear 55 on the side wall 57 of the recess 56 at.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Gear Transmission (AREA)
  • Transmission Devices (AREA)
  • Food-Manufacturing Devices (AREA)

Claims (5)

  1. Dispositif d'extraction par pression pour un conteneur (33) contenant des compositions, ayant une chambre de réception (12) pour le conteneur (33), comportant :
    au moins une tige de piston (13) mobile par rapport à la chambre de réception (12),
    un système d'extraction par pression (16) incluant une roue d'entraînement (21) pour l'avance de la au moins une tige de piston (13), un moteur (22) pour l'entraînement de la roue d'entraînement (21) ainsi qu'un engrenage planétaire (23) intercalé entre la roue d'entraînement (21) et le moteur (22) ayant un axe de rotation d'engrenage (24) et au moins une couronne (25 ; 55), dans lequel la au moins une couronne (25 ; 55) est munie, à sa circonférence (29 ; 59), de plusieurs évidements (26 ; 56) espacés les uns des autres,
    un commutateur d'actionnement (31) pour actionner le moteur (22), et
    un élément de blocage (36 ; 66) qui peut être transféré d'une position de blocage pour bloquer la au moins une couronne (25 ; 55) de l'engrenage planétaire (23), à une position de libération pour libérer cette couronne (25 ; 55),
    dans lequel un commutateur de déblocage séparé (41) est prévu pour actionner l'élément de blocage (36 ; 66) et l'élément de blocage (36 ; 66) peut pivoter autour d'un axe de pivotement (37 ; 67) pour transférer l'élément de blocage de la position de blocage à la position de libération,
    caractérisé en ce que l'axe de pivotement (37 ; 67) de l'élément de blocage (36 ; 66) s'étend transversalement à l'axe de rotation d'engrenage (24) de l'engrenage planétaire (23).
  2. Dispositif d'extraction par pression selon la revendication 1, caractérisé en ce que le dispositif d'extraction par pression (11) comporte un boîtier (17) et le commutateur d'actionnement (31) destiné à actionner le moteur (22) est prévu sur un côté de boîtier (18) du boîtier (17) dirigé vers la chambre de réception (12) et le commutateur de déblocage (41) est prévu sur un côté de boîtier (20) du boîtier (17) opposé à la chambre de réception (12).
  3. Dispositif d'extraction par pression selon l'une des revendications 1 ou 2, caractérisé en ce que l'élément de blocage (36) est rappelé élastiquement par un élément à ressort (46).
  4. Dispositif d'extraction par pression selon l'une des revendications 1 à 3, caractérisé en ce que les évidements (26) sont des encoches agencées sur la circonférence (29) de la couronne (25) avec des parois latérales (27) s'étendant parallèlement les unes aux autres.
  5. Dispositif d'extraction par pression selon l'une des revendications 1 à 4, caractérisé en ce que les évidements (56) sont des encoches agencées sur la circonférence (59) de la couronne (25), lesquelles encoches comportent respectivement, par rapport à la circonférence (59) de la couronne (55), une partie de fond (60) dont la profondeur (U) diminue en direction de la circonférence (59) à partir d'une profondeur initiale (T).
EP10174106.4A 2009-09-18 2010-08-26 Dispositif d'extrusion Active EP2298453B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009041825A DE102009041825A1 (de) 2009-09-18 2009-09-18 Auspressvorrichtung

Publications (3)

Publication Number Publication Date
EP2298453A2 EP2298453A2 (fr) 2011-03-23
EP2298453A3 EP2298453A3 (fr) 2017-11-29
EP2298453B1 true EP2298453B1 (fr) 2019-07-10

Family

ID=42802058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10174106.4A Active EP2298453B1 (fr) 2009-09-18 2010-08-26 Dispositif d'extrusion

Country Status (6)

Country Link
US (1) US8448825B2 (fr)
EP (1) EP2298453B1 (fr)
CN (1) CN102019260B (fr)
CA (1) CA2714943C (fr)
DE (1) DE102009041825A1 (fr)
MX (1) MX2010010097A (fr)

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US8573450B2 (en) * 2011-08-15 2013-11-05 Techway Industrial Co., Ltd. Electrical caulking gun
US8646657B2 (en) * 2012-04-17 2014-02-11 Techway Industrial Co., Ltd. Electric caulking gun
FR2989601B1 (fr) * 2012-04-23 2014-04-25 Techway Ind Co Ltd Pistolet a calfeutrer electrique
CN104224254B (zh) * 2013-06-20 2016-03-30 瑞奇外科器械(中国)有限公司 外科手术器械及其驱动装置
US9981233B2 (en) 2015-07-24 2018-05-29 Phillip Phung-I HO Portable mixer and dispenser for multi-component substances
US10005098B2 (en) * 2016-07-11 2018-06-26 Techway Industrial Co., Ltd. Power operated dispensing tool
US10766053B2 (en) 2017-01-04 2020-09-08 Red Devil, Inc. Material dispensing system and method
CN107999343A (zh) * 2017-12-20 2018-05-08 江苏东成机电工具有限公司 填缝枪
US11098779B2 (en) * 2019-01-30 2021-08-24 Mando Corporation Actuator and electromechanical disc brake having the same
DE102020205316A1 (de) * 2020-04-27 2021-10-28 Festool Gmbh Vorsatzgerät und Verfahren

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Also Published As

Publication number Publication date
DE102009041825A1 (de) 2011-03-24
EP2298453A3 (fr) 2017-11-29
US8448825B2 (en) 2013-05-28
CN102019260A (zh) 2011-04-20
CN102019260B (zh) 2015-07-01
CA2714943C (fr) 2017-06-06
US20110068130A1 (en) 2011-03-24
MX2010010097A (es) 2011-05-04
EP2298453A2 (fr) 2011-03-23
CA2714943A1 (fr) 2011-03-18

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