EP3701092B1 - Dispositif de connexion automatique entre un outil et un porte-outil d'engin de chantier ou de travaux publics - Google Patents

Dispositif de connexion automatique entre un outil et un porte-outil d'engin de chantier ou de travaux publics Download PDF

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Publication number
EP3701092B1
EP3701092B1 EP18800697.7A EP18800697A EP3701092B1 EP 3701092 B1 EP3701092 B1 EP 3701092B1 EP 18800697 A EP18800697 A EP 18800697A EP 3701092 B1 EP3701092 B1 EP 3701092B1
Authority
EP
European Patent Office
Prior art keywords
tool
connection plate
tool holder
automatic connection
connection device
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
EP18800697.7A
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German (de)
English (en)
French (fr)
Other versions
EP3701092A1 (fr
EP3701092C0 (fr
Inventor
Henri Marchetta
Maxime Boni
Nicolas PUTOD
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.)
Groupe Mecalac SAS
Original Assignee
Groupe Mecalac SAS
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Publication date
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Publication of EP3701092A1 publication Critical patent/EP3701092A1/fr
Application granted granted Critical
Publication of EP3701092C0 publication Critical patent/EP3701092C0/fr
Publication of EP3701092B1 publication Critical patent/EP3701092B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3654—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3645—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with auto-engagement means for automatic snap-on of the tool coupler part
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3636—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using two or four movable transversal pins

Definitions

  • the present invention relates to the technical field of construction or public works machinery. It relates to an automatic connection device between a tool and a tool holder for construction machinery used for example in the context of urban construction sites, railway works, service and maintenance construction sites.
  • the invention relates more particularly to a device making it possible to automatically connect the electrical, pneumatic and/or hydraulic networks of a tool with that of a tool carrier when they are mechanically assembled, without external intervention by the driver of the machine.
  • Construction or public works machines of the handling machine, loader or hoist type, of the loader-excavator or similar earthmoving machine type comprise work equipment in the form of an articulated arm, at the end of which is installed a work tool.
  • the work tools generally consist of either a bucket, or a shovel, or a loader bucket, or a hydraulic tool (for example, rock breaker, auger, brushcutter, etc.) or still others, depending on the type of use.
  • a hydraulic tool for example, rock breaker, auger, brushcutter, etc.
  • changing and assembling these work tools proves to be a long and difficult operation, taking into account, on the one hand, the mass of each of them, and, on the other hand, the conditions under which this change takes place, most generally on site, ie on construction sites.
  • the Applicant has developed several solutions, in particular a quick and reversible attachment device for a tool to a construction machine in which the tool holder comprises two pairs of gripping axes extending laterally and movable away and approximation using a locking cylinder, while the tool comprises at least two pairs of receiving parts whose openings are vis-à-vis and each provided to receive one of the gripping axes.
  • the tool is capable of being locked and unlocked on the tool holder by means of the locking cylinder by reversibly varying the distance separating pairs of gripping axes, between an extended position of the locking cylinder in which the gripping axes are in abutment at the bottom of an associated receiving part, and an entry position of the locking cylinder in which the gripping axes can be extracted from the receiving parts.
  • a machine operator can grab a tool and assemble or disassemble it with the tool holder, with great freedom in positioning the machine relative to the tool, while minimizing the risks tool drop during assembly operations.
  • the second pair of gripping axes is introduced into the other pair of receiving parts by a pivoting movement of the tool holder relative to the tool, in order to place the second pair of gripping axes opposite the openings of the other pair of receiving parts, followed by a sliding movement in order to introduce the second pair of gripping axes at the bottom of the receiving parts.
  • the current automatic electrical, hydraulic and/or pneumatic connection devices between a tool and a tool holder are not suitable for a pivoting movement of the tool holder relative to the tool, but only for a movement of approach in rectilinear translation of the tool holder relative to the tool.
  • the document EP 0 963 688 A2 shows a device according to the preamble of claim 1.
  • the object of the present invention therefore aims to overcome the drawbacks of the prior art by proposing a new automatic connection device making it possible to automatically connect and couple at least one of the electrical, pneumatic and/or hydraulic networks of a tool. with at least one of those of a tool holder provided on the free end of the working arm of a construction or public works machine when said tool is mounted and mechanically assembled on the tool holder by at least one movement pivoting of the tool holder relative to the tool or vice versa.
  • Another object of the present invention also aims to provide a construction or public works machine comprising a working arm equipped with a tool holder carrying a tool and equipped with an automatic connection device adapted to a pivoting movement of the tool holder relative to the tool or vice versa during their mutual assembly.
  • the movable connection plate being movable both in pivoting and in sliding relative to the tool or the tool holder on which it is provided, it is suitable for all types of movement aimed at assembling a tool on a holder. tool.
  • This new automatic connection device is particularly suited to the Applicant's device previously described, allowing a tool to be placed on a tool holder without having to get off the public works machine.
  • This new automatic connection device is also suitable for all the devices for setting up a tool on a tool holder because it makes it possible to adapt to all types of movement of the tool holder in relation to the tool or conversely making it possible to mount a tool on a tool provided on the free end of the working arm of a construction or public works machine.
  • the fixed connection plate being immobile with respect to the tool or the tool holder on which it is provided, it is fixed or integrated on the tool or the tool holder, without requiring any damping or compensation device for movement.
  • connection plates are connected when assembling the tool and the tool holder, without risk of disconnection, and only one of the connection plates is mobile, but without the need for springs, silent blocks, cylinders compensation or other expensive and unreliable components.
  • the simplicity and robustness of the automatic connection device of the invention advantageously allow it to be reliable, resistant and inexpensive.
  • the centering device guides the movement of the movable connection plate relative to the fixed connection plate along a curved trajectory when the tool is mounted and mechanically assembled on the holder. tool.
  • the centering device is also adapted to a pivoting movement of the tool holder relative to the tool or vice versa to connect the connection plates when the tool is mounted and mechanically assembled on the tool holder.
  • the centering device comprises at least one first guide element provided on the tool in the immediate vicinity of or on the first connection plate, and at least one second guide element provided on the tool holder in the immediate vicinity of or on the second connection plate.
  • the automatic connection device comprises two guide elements provided on either side of the first connection plate and two other guide elements provided on either side of the second connection board. Providing the guide elements in pairs makes it possible to ensure better centering of the two connection plates with a view to their mutual connection.
  • the first or the second guide element is a projecting guide finger, while the other guide element is a receiving housing for said guide finger, provided to house the guide pin with a lateral clearance of less than 2 millimeters, preferably less than 1 millimeter and more preferably less than 0.5 millimeter.
  • each guide finger is in the form of a plate having a thickness of between 5 and 30 millimeters, preferably between 8 and 20 millimeters and more preferably between 10 and 15 millimeters.
  • a guide element is very strong and perfectly suited for use on construction sites where the tools are usually very heavy and likely to be handled quite roughly.
  • each guide finger has a free end which narrows in the shape of a point, followed by a rectilinear middle part extending along the longitudinal axis of the guide finger, and terminated by a flared base provided for mounting the guide finger on or in the immediate vicinity of the connection plate at the level of which it is provided.
  • This shape makes it possible to facilitate the mutual engagement of the guide fingers in their associated receiver housing, then, once this engagement has been carried out, to gradually center the two connection plates.
  • the tapered free end of each guide finger comprises an inclined ramp directed forwards and opposite a rectilinear part extending along the longitudinal axis of the guide finger.
  • This shape is particularly suitable for pivoting the end extremal front of the tool holder in the direction of the tool or vice versa, corresponding to the preferred method of assembly of the tool on the tool holder.
  • each receiver housing comprises a flared inlet through which a guide pin penetrates, followed by a rectilinear part extending along the longitudinal axis of the receiver housing to receive at least partially said guide finger.
  • each guide finger and each receiver housing are provided in a vertical plane and they extend along the longitudinal axis of the working arm of the construction or public works machine. .
  • each guide finger is provided on the mobile connection plate.
  • the guide fingers are mobile, just like the mobile connection plate.
  • each guide finger is of generally rectilinear shape.
  • the at least one electric, pneumatic and/or hydraulic coupler of the fixed connection plate is a female coupler and the at least one electric, pneumatic and/or hydraulic coupler of the mobile connection plate is a male coupler.
  • the first connection plate includes an identification chip
  • the second connection plate includes a chip reader.
  • the chip reader can read the information on the chip to identify the tool and automatically adjust the machine so that the tool is used in accordance with the recommendations. of the manufacturer.
  • the identification chip is an RFID chip.
  • the movable connection plate comprises a base mounted movable on the tool or the tool holder, this base comprising cutouts each forming a guide slot and provided on either side others of the mobile connection plate, and said tool or tool holder comprises protruding elements, each of these protruding elements being slidably housed in one of the cutouts. It is this assembly of the mobile base on the projecting elements of the tool or of the tool holder which allow the connection plate to be mobile.
  • each projecting element is in the form of a pair of substantially cylindrical guide rollers each having a diameter substantially equal to and slightly less than that of the internal height of the cutouts.
  • the cutouts of the base are located in a plane substantially orthogonal to the longitudinal axis of the working arm of the construction or public works machine
  • each cutout is in the form of an oblong.
  • each cutout has a flared end transversely relative to the longitudinal axis of the cutout, this flare extending in the direction opposite to the tool holder when the tool is mounted on the tool holder. This widening allows freedom of movement of the movable base relative to the tool or the tool holder when these two elements pivot mutually when they are already engaged by the centering device.
  • the projecting elements of the tool or the tool holder are located in the part of the cutout which has no flared end, which makes it possible to immobilize the Mobile connection plate relative to the fixed connection plate.
  • the objects assigned to the invention are also achieved with the aid of a construction or public works machine comprising a working arm equipped with a tool holder carrying a tool, which machine comprises an automatic connection device such as previously described.
  • front or rear reference will be made to the usual conventions concerning vehicles.
  • the articulated arm at the end of which is installed a working tool is usually located at the front of the construction machinery.
  • the front is on the right and the back is on the left.
  • FIG. 1 illustrates an articulated working arm (1) of a construction or public works machine equipped with an automatic connection device (2) according to the invention and a tool holder (3) provided on the free end of the articulated working arm (1) of a construction or public works machine and partially assembled with a tool (4) of the rock breaker type.
  • the tool holder (3) developed by the Applicant, which comprises a device for quick and reversible attachment of a tool to a construction machine.
  • the tool holder (3) comprises two pairs of gripping axes (5, 6) extending laterally and movable away from and toward each other by means of a locking cylinder (7), while the tool (4) comprises at least two pairs of parts receivers (8, 9) whose openings face each other and are each provided to receive one of the gripping axes (5, 6).
  • the automatic connection device (2) is provided for automatically connecting and coupling at least one of the electrical, pneumatic and/or hydraulic networks of a tool (4) with at least one of those of the tool holder (3 ) when said tool (4) is mounted and mechanically assembled on the tool holder (3).
  • This automatic connection device (2) comprises a first connection plate (10) provided on the tool (4), a second connection plate (11) provided on the tool holder (3) and a centering device (12 ) provided on the tool holder (3) and/or on the tool (4).
  • the first connection plate (10) comprises at least one electric, pneumatic and/or hydraulic coupler (13) accessible from the outside and connected to at least one of the electric, pneumatic and/or hydraulic networks of the tool (4) .
  • the second connection plate (11) comprises at least one electric, pneumatic and/or hydraulic coupler (14) accessible from the outside and connected to at least one of the electric, pneumatic and/or hydraulic networks of the tool holder (3) .
  • connection plates (10 or 11) is fixed or integrated on the tool (4) or the tool holder (3) on which it is provided so as to be motionless relative to it.
  • This is preferably the second connection plate (11), which is provided on the tool holder (3).
  • connection plate (11 or 10) is movably mounted on the tool (4) or the tool holder (3) on which it is provided so as to be mobile both pivoting and sliding relative thereto.
  • This is preferably the first connection plate (10) provided on the tool (4).
  • the mobile connection plate will bear the reference 10
  • the fixed connection plate will bear the reference 11.
  • the invention is represented according to a mode preferred embodiment wherein the first breakout board (10) is the movable breakout board while the second breakout board (11) is the fixed connection plate.
  • first connection plate (10) is the fixed connection plate while the second connection (11) is the mobile connection plate.
  • FIG. 1 illustrates the front face of a tool holder (3) comprising a fixed connection plate (11) according to the invention.
  • the plate is in one piece with the part of the body (15) of the tool holder (3) on which it is mounted.
  • the electric, pneumatic and/or hydraulic couplers (14) of the fixed connection plate (11) are preferably female couplers so that no element of the fixed connection plate (11) protrudes outside the part of the body (15) of the tool holder (3) on which it is mounted.
  • the fixed connection plate (11) comprises five female hydraulic couplers (14a) and a female electrical coupler (14b) with eight pins.
  • FIG. 1 illustrates a mobile connection plate (10) according to the invention.
  • the electrical, pneumatic and/or hydraulic couplers (13) of the mobile connection plate (10) are preferably male couplers.
  • the mobile connection plate (10) comprises five male hydraulic couplers (13a) and a male electrical coupler (13b) with eight pins.
  • the centering device (12) is provided so that when said tool (4) is mounted and mechanically assembled on the tool holder (3), the first and second connection plates (10, 11) are mutually centered and their couplers (13, 14) are mutually connected so as to connect at least one of the electrical, pneumatic and/or hydraulic networks of the tool (4) to that of the tool holder (3).
  • the centering device (12) is provided to be able to guide the movement of the movable connection plate (10) relative to the fixed connection plate (11) when said tool (4) is mounted and mechanically assembled on the tool holder (3) along a curved trajectory.
  • the centering device (12) comprises at least a first guide element (16) provided on the tool (4) in the immediate vicinity of or on the first connection plate (10 ), and at least one second guide element (17) provided on the tool holder (3) in the immediate vicinity of or on the second connection plate (11).
  • the centering device (12) preferably comprises two guide elements (16 or 17) provided on either side of the first connection plate (10) and two other guide elements (17 or 16) provided on either side. other of the second connection board (11).
  • the first or the second guide element (16 or 17) is a projecting guide pin (18), while the other guide element (17 or 16) is a receiving housing (19) for said guide pin (18), provided to house the guide pin (18) with a lateral clearance of less than 2 millimeters, preferably less than 1 millimeter and more preferably less than 0.5 millimeter.
  • each guide element (16) provided on the tool (4) is in the form of a projecting guide finger (18), while each guide element (17) provided on the tool holder (3 ) is in the form of a receiving housing (19).
  • this makes it possible to avoid having elements which protrude outside the part of the body (15) of the tool holder (3) on which the fixed connection plate (11) is mounted.
  • protruding elements would be likely to be damaged during manipulations of the articulated working arm (1), whereas the protruding elements present on the back of the tool (4) can advantageously be protected by the parts in projection (20) of the tool (4) in which the two pairs of receiving parts (8, 9) are shaped.
  • each receiver housing (19) may have an open outer side face, as shown in the picture 2 .
  • Each guide finger (18) is preferentially in the form of a plate (15) having a thickness comprised between 5 and 30 millimeters, preferentially comprised between 8 and 20 millimeters and more preferentially comprised between 10 and 15 millimeters.
  • each guide finger (18) comprises an inclined ramp (24) directed forwards and opposite a rectilinear part (25) extending along the longitudinal axis of the guide finger (18). ).
  • Each receiver housing (19) preferably comprises a flared inlet (26) through which a guide pin (18) penetrates, followed by a straight part (27) extending along the longitudinal axis of the receiver housing (19) to receive at least partially said guide finger (18).
  • Each of the guide fingers (18) and each of the receiver housings (19) is preferably provided in a vertical plane and they preferably each extend along the longitudinal axis of the working arm (1) of the construction or work machine. public.
  • each guide finger (18) is provided on the mobile connection plate (10) and of generally rectilinear shape.
  • the first connection board (10) includes an identification chip (28), preferably an RFID chip, while the second connection board (11) includes a chip reader (29).
  • the ID chip (28) may contain a variety of information, including a tool-specific ID code that allows the tool carrier to identify the tool connected to it and automatically adjust the machine so that the tool is used in accordance with the manufacturer's recommendations.
  • the movable connection plate (10) comprises a base (30) mounted movable on the tool (4) or the tool holder (3), this base (30) comprising cutouts (31) each forming a guide slot (32) and provided on either side of the movable connection plate (10), while said tool (4) or tool holder (3) comprises projecting elements (33) slidably housed in one of the cutouts (31).
  • Each projecting element (33) is preferably in the form of a pair of substantially cylindrical guide rollers (34) each having a diameter substantially equal to and slightly less than that of the internal height of the cutouts (31).
  • the guide rollers (34) are all provided in the same plane, this plane being horizontal in the figures.
  • the cutouts (31) of the base (30) are located in a plane substantially orthogonal to the longitudinal axis of the working arm (1) of construction or public works machinery.
  • Each cutout (31) is preferably in the form of an oblong and has a transversely flared front end (35) with respect to the longitudinal axis of the cut (31), this widening (35) extending in the direction opposite to the tool holder (3) when the tool (4) is mounted on the tool holder (3), it is that is to say that in the figures the flare (35) extends downwards and it is located at the level of the right end of the cutout (31).
  • Each cutout (31) is closed or closed off at each of its front and rear longitudinal ends in order to limit the travel of the guide rollers (34) therein, so that the mobile connection plate (10) is always on the tool (4) in a position where the centering device (12) is provided to be able to guide the movement of the movable connection plate (10) relative to the fixed connection plate (11) when said tool (4) is mounted and mechanically assembled on the tool holder (3).
  • the flare (35) may include an open slot (36) provided to prevent accumulations of earth or sand in this part.
  • the tool (4) is not shown in its entirety, but only its base is shown.
  • the tool (4) is partially engaged with the tool holder (3) and a pair of gripper pins (6) of the tool holder (3) are received in a pair of receiving parts (9 ) of the tool (4).
  • connection plates (10, 11) are mutually close together and the free end (21) of each guide finger (18) comes into contact with the flared inlet (26) of the receiver housing (19) associated with it .
  • the movable connection plate (10) is mounted floating on the tool (4), so its position is variable when each guide finger (18) comes into contact with the receiver housing (19) associated with it. .
  • the guide slot (32) base (30) on which is provided the mobile connection plate (10) and the guide rollers (34) of the tool holder (3) are however provided so that in the different possible extreme positions for the mobile connection plate (10) relative to the tool (4), when the other pair of gripping axes (5) of the tool holder (3) is brought closer to the other pair of receiving parts (8) of the tool (4) by pivoting, the free end (21) of each guide pin (18) always comes into contact with the flared inlet (26) of the receiving housing (19) which is associated.
  • the mobile connection plate (10) is in the extreme front position with respect to the tool (4), that is to say that it is in the extreme position on the right in the figure, the guide rollers (34 ) being in abutment against the rear part (37) of the guide slot (32) of the base (30) on which the mobile connection plate (10) is provided.
  • the inclined ramp (24) of each guide finger (18) slides slidably on the flared inlet (26) of the receiver housing (19) which is associated with it.
  • This sliding of one ramp against another causes the base (30) on which the movable connection plate (10) is provided to slide so that each guide finger (18) is found to be substantially centered with respect to the receiver housing (19) associated with it.
  • the mobile connection plate (10) is in the extreme rear position with respect to the tool (4), that is to say that it is in the extreme position on the left in the figure, the guide rollers (34 ) being in abutment against the front part (38) of the guide slot (32) of the base (30) on which the mobile connection plate (10) is provided.
  • each guide finger (18) slides slidably over the flared inlet (26) of the receiver housing (19) associated with it. This sliding causes the base (30) on which the movable connection plate (10) is provided to slide so that each guide finger (18) is found to be substantially centered with respect to the receiver housing (19) which is associated with it. .
  • the mobile connection plate (10) is in the extreme position pivoted with respect to the tool (4), that is to say that a pair of guide rollers (34) is in abutment in the bottom of the widening (35) of each cutout (31) of the base (30) on which the mobile connection plate (10) is provided.
  • a pair of guide rollers (34) is in abutment in the bottom of the widening (35) of each cutout (31) of the base (30) on which the mobile connection plate (10) is provided.
  • each guide finger (18) slides slidably over the flared inlet (26) of the receiver housing (19) associated with it.
  • This sliding causes the base (30) on which the mobile connection plate (10) is provided to pivot so that each guide finger (18) finds itself substantially centered relative to the receiver housing (19) associated with it.
  • the mobile connection plate (10) pivots and slides relative to the tool (4) to follow the movement (cf. figure 6 ).
  • connection plates (10, 11) perfectly centered thanks to the centering device (12), approach each other by a substantially rectilinear translational movement with respect to each other until they come into contact.
  • the electrical, pneumatic and/or hydraulic couplers (13, 14) of the connection plates (10, 11) then mutually engage in order to connect their respective electrical, pneumatic and/or hydraulic networks.
  • a pair of gripping axes (6) of the tool holder (3) is received in a pair of receiving parts (9) of the tool (4) while the other pair of gripping axes (5) of the tool holder (3) is opposite the other pair of receiving parts (8) of the tool (4) (cf. figure 7 ).
  • All the gripping axes (5, 6) of the tool holder (3) are in the same plane as the receiving parts (8, 9) of the tool (4).
  • the rollers are in the extreme position of abutment against the front part (38) (on the right in the figure) of each guide slot (32) of the base (30).
  • the tool (4) is then locked on the tool holder (3) by the translational movement of the other pair of gripping axes (5) of the tool holder (3) at the bottom of the receiving parts (8) of the tool (4) via the locking cylinder (7).
  • the two connection plates (10, 11) remain connected and the movable connection plate (10) slides forward relative to the tool (4) to follow the movement (cf. figure 8 ).
  • the rollers then find themselves in the extreme position of abutment against the rear part (37) (on the left in the figure) of each guide slot (32) of the base (30), which corresponds to the locking position of the tool (4) on the tool holder (3).
  • connection plates (10, 11) are all mutually connected.
  • the automatic connection device (2) is not only intended for the particular tool holder (3) developed by the Applicant, which comprises a device for quick and reversible attachment of a tool to a construction machine. Also, the operation of the invention describes more top can it be significantly different depending on the conformation of the tool (4) and the tool holder (3).
  • a tool holder (3) equipped with an automatic connection device (2) according to the invention can also be used to be assembled with a tool (4) that does not require connection to any electrical network, pneumatic and/or hydraulic.
  • a first possibility consists in that the second connection plate (11) provided on the tool holder (3) is equipped with a protection device (39), for example in the form of a protective cover rigid metal equipped with a flexible rubber-like plate, which is placed over the electric, pneumatic and/or hydraulic couplers (14) of the second connection plate (11) in order to protect them.
  • This protective device (39) is put in place manually.
  • a second possibility consists in that the tool (4) is equipped with a protection device (40) bearing on the second connection plate (11) provided on the tool holder (3) in order to protect it.
  • This protection device (40) can be in the form of a rubber pad or equivalent, which can have protruding elements provided to collaborate with the electric, pneumatic and/or hydraulic couplers (14) of the second connection plate (11).
  • This protection device (40) is permanently on the tool (4).
  • the two protection devices (39, 40) described above are two alternatives aimed at protecting the automatic connection device (2) according to the invention for a tool (4) not requiring connection to any electrical network. , pneumatic and/or hydraulic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Manipulator (AREA)
  • Shovels (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Jigs For Machine Tools (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
EP18800697.7A 2017-10-26 2018-10-10 Dispositif de connexion automatique entre un outil et un porte-outil d'engin de chantier ou de travaux publics Active EP3701092B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1760095A FR3072981B1 (fr) 2017-10-26 2017-10-26 Dispositif de connexion automatique entre un outil et un porte-outil d'engin de chantier ou de travaux publics
PCT/FR2018/052512 WO2019081831A1 (fr) 2017-10-26 2018-10-10 Dispositif de connexion automatique entre un outil et un porte-outil d'engin de chantier ou de travaux publics

Publications (3)

Publication Number Publication Date
EP3701092A1 EP3701092A1 (fr) 2020-09-02
EP3701092C0 EP3701092C0 (fr) 2023-08-23
EP3701092B1 true EP3701092B1 (fr) 2023-08-23

Family

ID=61132561

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Application Number Title Priority Date Filing Date
EP18800697.7A Active EP3701092B1 (fr) 2017-10-26 2018-10-10 Dispositif de connexion automatique entre un outil et un porte-outil d'engin de chantier ou de travaux publics

Country Status (12)

Country Link
US (1) US11560688B2 (pl)
EP (1) EP3701092B1 (pl)
JP (1) JP6965458B2 (pl)
KR (1) KR102578062B1 (pl)
CN (1) CN111279033B (pl)
AU (1) AU2018356833B2 (pl)
CA (1) CA3079635A1 (pl)
ES (1) ES2953637T3 (pl)
FR (1) FR3072981B1 (pl)
MX (1) MX2020004252A (pl)
PL (1) PL3701092T3 (pl)
WO (1) WO2019081831A1 (pl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202019101747U1 (de) * 2019-03-27 2020-06-30 Kinshofer Gmbh Schnellwechsler für Baumaschinenwerkzeuge
DE102020110523A1 (de) 2020-04-17 2021-10-21 Liebherr-Hydraulikbagger Gmbh Schnellkupplung mit Zentriervorrichtung
CN113123385B (zh) * 2021-04-16 2022-03-18 湖南大学 一种用于应急救援工程装备的全自动快换装置
WO2026052377A1 (en) * 2024-09-09 2026-03-12 Kenny Seamus A coupling device

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US4403905A (en) * 1980-08-22 1983-09-13 J. I. Case Company Operating mechanism for a swing mechanism valve
JPH0480434A (ja) * 1990-07-20 1992-03-13 Kubota Corp ローダ車輌の油圧継手装置
JPH05311689A (ja) * 1992-05-14 1993-11-22 Iida Tekko:Kk 建設機械のアームへの作業装置取付け構造
US5983535A (en) * 1997-03-10 1999-11-16 Clark Equipment Company Fastener secured frame for boom mounted quick change bracket
DE29810118U1 (de) * 1998-06-05 1998-10-29 Scherhaufer-Kremmer, Helmut, 85356 Freising Arbeitsmaschine
PL200100B1 (pl) * 2001-03-09 2008-12-31 Liebherr Hydraulikbagger Szybkozłącze
DE102004014824B4 (de) * 2004-03-24 2019-08-01 Lehnhoff Hartstahl Gmbh Schnellwechselvorrichtung mit einer hydraulischen Kupplung für die Medien an einem Baugerät
DE102004037459A1 (de) * 2004-08-02 2006-02-23 Liebherr-Hydraulikbagger Gmbh Hydraulikschnellkupplung
DE602006006821D1 (de) * 2005-05-27 2009-06-25 Charles Machine Works Bestimmung der position eines fernbedienungsanwenders
CA2829379A1 (en) * 2011-03-10 2012-09-13 Clark Equipment Company Implement coupling system for a power machine
CN104641564B (zh) * 2013-09-19 2017-03-08 株式会社小松制作所 通信装置和配有该装置的工程车辆
DE102014119748A1 (de) * 2014-12-31 2016-06-30 Lehnhoff Hartstahl Gmbh & Co. Kg Schnellwechsler und Adapter einer Schnellwechselvorrichtung
CN205530418U (zh) * 2016-02-25 2016-08-31 山推工程机械股份有限公司 一种推土机铲刀机构
JP6085710B1 (ja) * 2016-04-28 2017-02-22 東空販売株式会社 アタッチメント監視システム
DE202019101747U1 (de) * 2019-03-27 2020-06-30 Kinshofer Gmbh Schnellwechsler für Baumaschinenwerkzeuge

Also Published As

Publication number Publication date
CN111279033B (zh) 2022-04-08
MX2020004252A (es) 2020-07-29
US20200291599A1 (en) 2020-09-17
PL3701092T3 (pl) 2023-11-06
JP2021509702A (ja) 2021-04-01
EP3701092A1 (fr) 2020-09-02
WO2019081831A1 (fr) 2019-05-02
AU2018356833A1 (en) 2020-05-07
EP3701092C0 (fr) 2023-08-23
FR3072981A1 (fr) 2019-05-03
BR112020007767A2 (pt) 2020-10-06
CA3079635A1 (fr) 2019-05-02
FR3072981B1 (fr) 2021-03-19
AU2018356833B2 (en) 2024-03-21
KR102578062B1 (ko) 2023-09-13
ES2953637T3 (es) 2023-11-14
CN111279033A (zh) 2020-06-12
US11560688B2 (en) 2023-01-24
JP6965458B2 (ja) 2021-11-10
KR20200072488A (ko) 2020-06-22

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