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 equipment or public works. It relates to an automatic connection device between a tool and a tool holder for construction equipment used for example in the context of urban construction sites, railway works, service and maintenance site.
• the invention relates more particularly to a device for automatically connecting the electrical, pneumatic and / or hydraulic networks of a tool with that of a tool holder when they are mechanically assembled, without external intervention of the driver of the machine.
• Construction or public works machinery of the type of handling equipment, loader or elevator, of the excavator-excavator type earth-moving machine or the like comprise work equipment in the form of an articulated arm, at the end of which is installed a work tool.
• the working tools generally consist of either a bucket, a shovel, a loader bucket, or a hydraulic tool (for example, rock breaker, auger, brush cutter, ...) or still others, depending on the type of use.
• a hydraulic tool for example, rock breaker, auger, brush cutter, Certainly or still others, depending on the type of use.
• the change and assembly of these tools is a long and difficult operation, taking into account, on the one hand, the mass of each of them, and on the other hand, conditions under which this change takes place, most commonly on site, ie on construction sites.
• the Applicant has developed several solutions, in particular a quick and reversible attachment of a tool to a construction machine in which the tool holder comprises two pairs of gripping axes extending laterally and movable away and in approximation using a locking cylinder, while the tool comprises at least two pairs of receiving portions whose openings are vis-à-vis and each provided for receiving one of the gripping axes.
• the tool is adapted to be 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 output position of the locking cylinder. wherein the gripping pins abut the bottom of an associated receiving part, and an input position of the locking cylinder in which the gripping axes can be extracted from the receiving parts.
• a driver of the machine can grab a tool and assemble or disassemble it with the tool holder, with great freedom in the positioning of the machine relative to the tool, while minimizing the risks drop of the tool during assembly operations.
• the driver sometimes has to get out of the vehicle to connect the electrical, hydraulic and / or pneumatic networks of the tool to those of the toolholder because there is no need to this day of satisfactory automatic connection device between a tool and a tool holder of the working arm of a construction machine or public works as described above.
• the second pair of gripping pins is introduced into the other pair of receiving portions by a pivoting movement of the tool holder relative to the tool, so as to place the second pair of gripping pins opposite the openings of the other pair of receiving portions, followed by a sliding movement to introduce the second pair of gripping axes to the bottom of the receiving portions.
• the current automatic electrical, hydraulic and / or pneumatic connection devices between a tool and a tool holder are not adapted to a pivoting movement of the tool holder relative to the tool, but only to a movement of approximation in rectilinear translation of the tool holder relative to the tool.
• the object of the present invention is therefore to overcome the drawbacks of the prior art by proposing a new automatic connection device for automatically connecting and coupling 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 assembled mechanically on the tool holder by at least one movement pivoting the tool holder relative to the tool or vice versa.
• Another object of the present invention is also 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.
• an automatic connection device for automatically connecting and coupling 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 assembled mechanically on the tool holder,
• this automatic connection device comprising:
• a first connection plate provided on the tool comprising at least one electrical, pneumatic and / or hydraulic coupler accessible from the outside and connected to at least one of the electrical, pneumatic and / or hydraulic networks of said tool;
• a second connection plate provided on the tool holder comprising at least one electrical, pneumatic and / or hydraulic coupler accessible from the outside and connected to at least one of the electrical, pneumatic and / or hydraulic networks of said tool holder;
• a centering device provided on the tool holder and / or the tool so that, when said tool is mounted and assembled mechanically on the tool holder, the first and second connection plates are mutually centered and their couplers are mutually connected, so as to connect at least one of the electrical, pneumatic and / or hydraulic networks of the tool to that of the tool holder;
• connection boards At least one of the connection boards, called fixed connection board, is fixed or integrated on the tool or the tool holder on which it is provided so that it is stationary with respect thereto; and
• connection plate is mounted movably on the tool or the tool holder on which it is designed so as to be mobile both pivotally and slidably relative to the this.
• the mobile connection plate is movable both pivotally and slidably relative to the tool or the tool holder on which it is provided, it is suitable for all types of movement for assembling a tool on a carrier. tool.
• This new automatic connection device is particularly adapted to the Applicant device described above allowing the establishment of a tool on a tool holder without having to get off the public works machine.
• This new automatic connection device is also suitable for all devices for placing a tool on a tool holder because it makes it possible to adapt to all types of movement of the tool holder relative to the tool or conversely to mount a tool on a tool provided on the free end of the working arm of a construction machine or public works.
• the stationary connection plate being immobile relative 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 the need for a damping or compensation device. movement.
• connection plates are connected during assembly of the tool and the tool holder, without risk of disconnection, and only one of the connection board is movable, but without the need for springs, silent-blocks, cylinders compensation or other expensive and unreliable items.
• the simplicity and robustness of the automatic connection device of the invention advantageously enable it to be reliable, resistant and inexpensive.
• the centering device guides the displacement of the movable connection plate relative to the fixed connection plate in a curved path when the tool is assembled and mechanically assembled on the carrier. 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 guiding elements provided on either side of the first connection plate and two other guiding elements provided on either side of the first connection plate. the second connection board. Providing the guide members in pairs ensures a better centering of the two connection plates for their mutual connection.
• the first or the second guide element is a protruding guide pin, while the other guide element is a receiving housing for said guide pin, intended to house the guide pin.
• guide finger with a lateral clearance of less than 2 millimeters, preferably less than 1 millimeter and more preferably less than 0.5 millimeter.
• each guide pin 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. millimeters.
• a guide element is very resistant and perfectly suitable for use on construction sites where the tools are usually very heavy and can be handled in a rather rough way.
• each guide pin has a free end which narrows in the shape of a point, followed by a rectilinear median portion extending along the longitudinal axis of the guide finger, and finished by a flared base provided for mounting the guide finger on or in the immediate vicinity of the connection plate at which it is provided.
• This form facilitates the mutual engagement of the guide fingers in their associated receiver housing, and, once this commitment is made, to gradually center the two connection plates.
• each guide pin comprises an inclined ramp directed towards the front and opposite to a rectilinear portion extending along the longitudinal axis of the guide pin.
• This shape is particularly suitable for pivoting the end extremal front of the tool holder towards the tool or vice versa, corresponding to the preferred assembly mode of the tool on the tool holder.
• each receiving housing comprises a flared entry through which a guide finger penetrates, followed by a rectilinear portion extending along the longitudinal axis of the receiving housing to receive at least partially said guide pin.
• each guide pin and each receiving 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 pin is provided on the mobile connection plate.
• the guide fingers are movable, as the movable connection plate.
• each guide pin is of generally rectilinear shape.
• the first connection plate is movably mounted on the tool while the second connection plate is fixed or integrated on the tool holder.
• the at least one electrical, pneumatic and / or hydraulic coupler of the fixed connection board is a female coupler and the at least one electrical, pneumatic and / or hydraulic coupler of the mobile connection board is a male coupler.
• the first connection board comprises an identification chip
• the second connection board comprises 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 movably on the tool or the tool holder, this base comprising cutouts each forming a guide light and provided on both sides. others of the mobile connection board, and said tool or tool holder has projecting elements, each of these projecting elements being slidably accommodated in one of the cutouts. It is this mounting of the mobile base on the projecting elements of the tool or the tool holder that 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 blanks.
• the cuts of the base are located in a plane substantially orthogonal to the longitudinal axis of the working arm of the construction or public works machinery
• each cutout is in the form of an oblong.
• each cutout has an end flared transversely 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 flaring allows freedom of movement of the mobile base relative to the tool or the tool holder when these two elements mutually pivot while they are already engaged by the centering device.
• the protruding 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 tool. mobile connection board with respect to the fixed connection board.
• the objects assigned to the invention are also achieved by means of a construction or public works machine comprising a work arm equipped with a tool-carrying tool, which machine comprises an automatic connection device such as previously described.
• FIG. 1 is a perspective view of a working arm of a construction machine or public works equipped with an automatic connection device according to the invention, wherein the tool holder is partially assembled with a breaker type tool;
• FIG. 2 is a perspective view of the part of the tool holder comprising a stationary connection plate according to the invention
• FIG. 3 is a perspective view of a mobile connection plate according to the invention.
• FIGS. 4 to 8 are side views illustrating the sequences of gripping and locking a tool by a tool holder, which are equipped with an automatic connection device according to the invention
• FIG. 9 is a front view of a tool assembled on a tool holder, which are equipped with an automatic connection device according to the invention.
• FIG. 10 is a side view of a tool assembled on a tool holder shown in section along the axis of section shown in Figure 9;
• FIG. 11 is a perspective view of a working arm of a construction or public works machine equipped with an automatic connection device according to the invention, in which the fixed connection plate is equipped with a protection element;
• FIG. 12 is a perspective view of a construction tool in the form of a reversible bucket equipped with an automatic connection device according to the invention, in which the mobile connection plate is equipped with an element protection.
• Front or rear we will refer to the usual conventions concerning vehicles.
• the articulated arm at the end of which is installed a work tool is usually located at the front of the construction machinery.
• the front is on the right and the rear 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) breaker type.
• 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 axles (5, 6) extending laterally and movable away and inwardly by means of a locking cylinder (7), while the tool (4) comprises at least two pairs of parts receivers (8, 9) whose openings are vis-à-vis and each provided for receiving 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 the tool (4).
• the first connection board (10) comprises at least one electrical, pneumatic and / or hydraulic coupler (13) accessible from the outside and connected to at least one of the electrical, pneumatic and / or hydraulic networks of the tool (4) .
• the second connection plate (11) comprises at least one electrical, pneumatic and / or hydraulic coupler (14) accessible from the outside and connected to at least one of the electrical, pneumatic and / or hydraulic networks of the tool holder (3). .
• connection board (10 or 11) is fixed or integrated on the tool (4) or the tool holder (3) on which it is intended to be immobile in relation to this one. It is preferably the second connection plate (11), which is provided on the tool holder (3).
• connection board (11 or 10) is mounted movably on the tool (4) or the tool holder (3) on which it is designed so as to be mobile to both pivoting and sliding relative thereto. It is preferentially the first connection plate (10) provided on the tool (4).
• the mobile connection board will bear the reference 10
• the fixed connection board will bear the reference 11.
• the invention is shown in one embodiment. preferred embodiment wherein the first connection board (10) is the mobile connection board while the second connection board is (11) is the fixed connection board.
• first connection board (10) is the fixed connection board while the second board of connection (11) is the mobile connection board.
• FIG. 2 illustrates the front face of a tool holder (3) comprising a stationary connection plate (11) according to the invention.
• the plate is in one piece with the body portion (15) of the tool holder (3) on which it is mounted.
• the electrical, pneumatic and / or hydraulic couplers (14) of the fixed connection board (11) are preferably female couplers so that no element of the fixed connection board (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 an eight-pin female electrical coupler (14b).
• FIG. 3 illustrates a mobile connection plate (10) according to the invention.
• the electrical couplers, pneumatic and / or hydraulic (13) of the movable connection plate (10) are preferably male couplers.
• the mobile connection plate (10) comprises five male hydraulic couplers (13a) and an eight-pin male electrical coupler (13b).
• the centering device (12) is provided such 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) with respect to the fixed connection plate
• the centering device
• the centering device (12) comprises at least one first guide element (16) provided on the tool (4) in close proximity to or on the first connecting 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 guiding elements (16 or 17) provided on either side of the first connecting plate (10) and two other guiding elements (17 or 16) provided on both sides. other of the second connection board (11).
• the first or the second guide element (16 or 17) is a protruding guide pin (18), whereas the other guide element (17 or 16) is a receiver housing (19) for said guide finger (18), adapted to house the guide finger (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 pin (18), while each guide element (17) provided on the tool holder (3) ) is in the form of a receiver housing (19).
• this avoids having elements protruding outside the body portion (15) of the tool holder (3) on which the fixed connection plate (11) is mounted.
• each receiving housing (19) may have an open outer side face, as shown in FIG. 2.
• Each guide pin (18) is preferably in the form of a plate (15) having a thickness of between 5 and 30 millimeters, preferably between 8 and 20 millimeters and more preferably between 10 and 15 millimeters.
• each guide finger (18) has a free end (21) which narrows in the shape of a point, followed by a rectilinear median part (22) extending along the longitudinal axis of the guide finger (18), and terminated by a flared base (23). ) provided for mounting the guide pin (18) on or near immediate of the connection plate at which it is provided (10).
• the tapered free end (21) of each guide finger (18) has an inclined ramp (24) directed towards the front and opposite to a rectilinear part (25) extending along the longitudinal axis of the guide pin (18). ).
• Each receiving housing (19) preferably comprises a flared entry (26) through which a guide pin (18) penetrates, followed by a rectilinear portion (27) extending along the longitudinal axis of the receiving housing (19) to receive at least partially said guide pin (18).
• Each of the guide fingers (18) and each of the receiving housing (19) is preferably provided in a vertical plane and they are preferably each extended along the longitudinal axis of the working arm (1) of the construction machine or work public.
• each guide pin (18) is provided on the mobile connection plate (10) and of generally rectilinear shape.
• the first connection board (10) comprises an identification chip (28), preferably an RFID chip, while the second connection board (11) comprises a chip reader (29).
• the identification chip (28) can contain a lot of information, including a tool-specific identification code that allows the tool holder to identify the tool connected to it and automatically adjust the machine so that the tool tool is used in accordance with the manufacturer's recommendations.
• the mobile connection plate (10) comprises a base (30) mounted to move on the tool (4) or the tool holder (3), this base (30) comprising cutouts (31) each forming a guiding light (32) and provided on either side of the movable connecting plate (10), while said tool (4) or tool holder (3) comprises projecting elements (33) slidably received 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 smaller than that of the internal height of the cuts (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). construction machinery or public works.
• 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 cutout (31), this flare (35) extending in the direction opposite to the tool holder (3) when the tool (4) is mounted on the tool holder (3), this is that is to say that in the figures the flare (35) extends downwards and is located at the right end of the cutout (31).
• Each cutout (31) is closed or closed at each of its longitudinal front and rear ends in order to limit the travel of the guide rollers (34) therein, so that the movable connection plate (10) is always on the the tool (4) in a position where the centering device (12) is provided to be able to guide the movement of the movable connection board (10) with respect to the fixed connection board (11) when said tool (4) is mounted and assembled mechanically on the tool holder (3).
• the flare (35) may include an open slot (36) provided to prevent accumulations of soil or sand in this portion.
• the tool (4) is not illustrated in its entirety, but only its base is shown.
• the tool (4) is partially engaged with the tool holder (3) and a pair of grasping pins (6) of the tool holder (3) is received in a pair of receiving portions (9). ) of the tool (4).
• connection plates (10, 11) are mutually close together and the free end (21) of each guide pin (18) comes into contact with the flared entry (26) of the receiving housing (19) which is associated with it .
• the movable connecting plate (10) is mounted floating on the tool (4), also the position thereof is variable when each guide pin (18) comes into contact with the receiving housing (19) which is associated with it .
• the guiding light (32) base (30) on which is provided the movable connecting plate (10) and the guide rollers (34) of the tool holder (3) are however provided so that in the different extremal positions possible for the movable 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 portions (8) of the tool (4) by pivoting, the free end (21) of each guide finger (18) always comes into contact with the flared entry (26) of the receiving housing (19) which is associated.
• FIGS. 5A, 5b and 5c These different possible extremal positions for the movable connection plate (10) relative to the tool (4) are shown in FIGS. 5A, 5b and 5c.
• the movable connection plate (10) is in the front extreme position with respect to the tool (4), that is to say that it is in the extreme right position in the FIG. guide rollers (34) abutting against the rear portion (37) of the guide lumen (32) of the base (30) on which the movable connecting plate (10) is provided.
• the inclined ramp (24) of each guide pin (18) slidably slides on the flared entry (26) of the receiving housing (19). associated with it.
• This sliding of one ramp against another slides the base (30) on which is provided the movable connection plate (10) so that each guide pin (18) is substantially centered with respect to the receiving housing (19) associated with it.
• the movable connection plate (10) is in the rearmost position relative to the tool (4), that is to say that it is in the extreme position on the left in the figure, the rollers guide (34) being in abutment against the front portion (38) of the guide light (32) of the base (30) on which is provided the movable connecting plate (10).
• each guide pin (18) slidably slides on the flared entry (26) of the receiver housing (19) associated therewith. This sliding slides the base (30) on which is provided the movable connection plate (10) so that each guide pin (18) is substantially centered with respect to the receiving housing (19) associated with it .
• the movable connection plate (10) is in 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 flare (35) of each cutout (31) of the base (30) on which is provided the movable connection plate (10).
• a pair of guide rollers (34) is in abutment in the bottom of the flare (35) of each cutout (31) of the base (30) on which is provided the movable connection plate (10).
• each guide pin (18) slidably slides on the flared entry (26) of the receiver housing (19) associated therewith. This sliding rotates the base (30) on which is provided the movable connection plate (10) so that each guide pin (18) is found substantially centered relative to the receiving housing (19) associated with it.
• the mobile connection plate (10) pivots and slides relative to the tool (4) to follow the movement (see Figure 6).
• connection plates (10, 11) The two connecting plates (10, 11), perfectly centered thanks to the centering device (12), approach each other by a substantially rectilinear translational movement relative to each other until they come into contact.
• the electrical, pneumatic and / or hydraulic couplers (13, 14) of the connection plates (10, 1 1) then engage each other in order to connect their respective electrical, pneumatic and / or hydraulic networks.
• a pair of gripping shafts (6) of the tool holder (3) is received in a pair of receiving portions (9) of the tool (4) while the other pair of gripping shafts (5) of the tool holder (3) is opposite the other pair of receiving parts (8) of the tool (4) (see 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 extreme end position against the front portion (38) (right in the figure) of each guide light (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 with respect to the tool (4) to follow the movement (see Figure 8).
• the rollers are then in extreme end stop position against the rear portion (37) (left in the figure) of each guide light (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) according to the invention is not only provided for the particular tool holder (3) developed by the Applicant, which comprises a quick and reversible attachment device of a tool to a construction machine. Also, the operation of the invention describes more height can 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 assemble with a tool (4) not requiring any connection to any electrical network, pneumatic and / or hydraulic.
• the second connection plate (11) provided on the tool holder (3) is equipped with a protective device (39), for example in the form of a protective cover rigid metal body equipped with a rubber-like flexible plate, which is put in place over the electrical, pneumatic and / or hydraulic couplers (14) of the second connection plate (11) for the purpose of protecting them.
• This protection device (39) is set up manually.
• a second possibility is that the tool (4) is equipped with a protective device (40) bearing on the second connecting plate (11) provided on the tool holder (3) to protect it.
• This protection device (40) may be in the form of a rubber block or the like, which may have protruding elements intended to collaborate with the electrical, pneumatic and / or hydraulic couplers (14) of the second connection plate (11).
• This protection device (40) is permanently on the tool (4).
• FIG. A tool holder (3) equipped with an automatic connection device (2) according to the invention, the second connection plate (11) of which is provided with a protection device (39), is shown in FIG. that Figure 12 illustrates a reversible bucket equipped with a protective device (40).
• the two protection devices (39, 40) described above are two alternatives designed to protect the automatic connection device (2) according to the invention for a tool (4) that does not require any connection to any electrical network. , pneumatic and / or hydraulic.

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• 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)

Applications Claiming Priority (2)

Publications (3)

Family

ID=61132561

Family Applications (1)

Country Status (12)

Families Citing this family (4)

Family Cites Families (15)

• 2017
  • 2017-10-26 FR FR1760095A patent/FR3072981B1/fr not_active Expired - Fee Related
• 2018
  • 2018-10-10 ES ES18800697T patent/ES2953637T3/es active Active
  • 2018-10-10 CA CA3079635A patent/CA3079635A1/fr active Pending
  • 2018-10-10 WO PCT/FR2018/052512 patent/WO2019081831A1/fr not_active Ceased
  • 2018-10-10 PL PL18800697.7T patent/PL3701092T3/pl unknown
  • 2018-10-10 EP EP18800697.7A patent/EP3701092B1/de active Active
  • 2018-10-10 JP JP2020543403A patent/JP6965458B2/ja not_active Expired - Fee Related
  • 2018-10-10 MX MX2020004252A patent/MX2020004252A/es unknown
  • 2018-10-10 KR KR1020207011846A patent/KR102578062B1/ko active Active
  • 2018-10-10 AU AU2018356833A patent/AU2018356833B2/en not_active Expired - Fee Related
  • 2018-10-10 CN CN201880069508.3A patent/CN111279033B/zh not_active Expired - Fee Related
  • 2018-10-10 US US16/756,024 patent/US11560688B2/en active Active

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