• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The tool holder (1) comprises a locking cylinder (7) provided with two first gripping axes (25, 26) extending laterally on each side of its fixed part (8) and two second gripping axes (27, 28). ) extending laterally on each side of its movable portion (9). The tool (6) comprises at least two receiving assemblies (29, 30) each having a first receiving part (31, 33) and a second receiving part (32, 34) whose openings are facing each other and each provided for receiving one of the first gripping axes (25, 26) and one of the second gripping axes (27, 28) for holding the tool (6) on the tool holder (1). The tool (6) is locked on the tool holder (1) by means of the locking cylinder (7) by moving each gripping axis in abutment with the bottom of its associated receiving part.
    公开号:FR3027037A1
    申请号:FR1459818
    申请日:2014-10-13
    公开日:2016-04-15
    发明作者:Henri Marchetta；Maxime Boni；Nicolas Putod
    申请人:Groupe Mecalac SAS；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The present invention relates to the technical field of construction machinery. It relates to a tool holder for construction machinery used for example in the context of urban construction sites, railway works, service and maintenance work. The invention relates more particularly to a tool holder for construction equipment, allowing the operator of the machine to take and automatically assemble a work tool. State of the art Construction machinery or public works type handling equipment, loader or elevator, type earthmoving loader-excavator or the like include work equipment in the form of an articulated arm at the end of which is installed a working 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. In general, 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.
    [0002] On average, during a working day, the driver of a construction machine may have to change tools several dozen times a day. These assembly and disassembly steps require each time the immobilization of the machine for a few minutes. These accumulated downtimes represent a significant loss of productivity.
    [0003] There is therefore a need to simplify the use of a device for attaching a tool to a construction machine, to allow the operator of the machine to make these changes faster. In the document FR 2 475 160 A1, the Applicant has described a construction machine comprising an arm at the end of which is fixed a tool holder allowing the automatic grip of a tool. The assembly of the tool on the tool holder is achieved by means of several sets of frustoconical nipples present on the tool holder and corresponding housings carried by the tool. When the driver wants to attach a tool to the tool holder, it is necessary for him to simultaneously insert the pairs of pins in the housing. For this, the driver must position the construction machine relative to the tool so that the nipples are strictly aligned with the female housing. This alignment step 5 requires the driver to be dexterous because he must first correctly position the construction machine relative to the tool so that the nipples are aligned with the housing and, in a second step , order the articulated arm so that the nipples fit into the female housings.
    [0004] Given the relatively small dimensions of the housing on the tool, it may be necessary for the driver to perform several tests before successful assembly. These successive tests represent a waste of time and a stressor for the driver. To facilitate this assembly, the Applicant has subsequently proposed in document FR 2 708 679 A1 a toolholder comprising housings in a lower part and a horizontal axis in an upper part. Advantageously, the horizontal axis facilitates the insertion of the nipples present at a lower portion of the tool in the housing of the tool holder. For this, the tool comprises at an upper portion a set of tabs having 20 lights, intended to guide the horizontal axis of the tool holder. When the horizontal axis is engaged and progresses in said lights, the tool switches until the plugs engage automatically in the female housings. This solution allows the driver to grasp the tool more easily because the inclination of the tool holder relative to the tool then has little influence.
    [0005] Nevertheless, it is still necessary for the driver to position the machine perfectly with respect to the tool, so that the horizontal axis can be inserted simultaneously into the slots formed by the set of lugs of the tool holder. That is, if the axis of the horizontal bar is not perfectly aligned with an axis connecting the lumens, the driver may grasp the tool by engaging the horizontal axis in only one of the lumens. However, it may be difficult to correctly position the machine relative to the tool because of the rugged nature of the site. The driver can thus lose time in correctly positioning the machine on the site relative to the tool. This positioning problem is all the more critical when the construction machine moves on rails. Improper positioning of the tool along the track can then prevent its seizure by the driver. SUMMARY OF THE INVENTION The object of the present invention is therefore to overcome the disadvantages of the prior art by proposing a new tool holder for construction equipment, allowing a driver of the machine to seize. a tool with a greater freedom in the positioning of the machine relative to the tool. Another object of the invention is to provide a solution that eliminates, or at least to minimize the risk of falling of the tool during assembly operations. The objects assigned to the invention are achieved by means of an assembly formed of a tool and a tool holder provided to allow rapid and reversible assembly of a tool on the free end of the arm. working of a construction or public works machine, the work arm comprising a fork-ended balance and equipped with a set of rods and jacks provided for handling the tool when mounted on its free end , characterized in that: the tool holder comprises a locking cylinder comprising a fixed part rotatably mounted on the free end of the balance, and a movable part connected to the fixed part by a rod and pivotally mounted on the end of the set of rods and cylinders; . the tool holder comprises two first gripping axes extending laterally on each side of the fixed portion and two second gripping axes extending laterally on each side of the movable portion of the locking jack; - The tool comprises at least two receiving assemblies adapted to cooperate with the gripping axes of the tool holder; Each receiving assembly has a first receiving portion and a second receiving portion whose openings are facing each other and each provided for receiving one of the first gripping axes and one of the second gripping axes for holding the tool on the tool holder; the tool is able to be locked and unlocked on the tool holder by means of the locking cylinder by reversibly varying the distance separating the mobile part from the fixed part thereof, between an output position of the jack in which each of the first gripping pins abuts the bottom of its associated receiving part and each of the second gripping axes abuts the bottom of its associated receiving part, and an input position of the locking jack in which the grasping axes can be extracted from reception sets. Thus, the setting of the tool by the construction machine is fast and easy, and the operator of the machine has a perfect visibility of the parts that he must mutually engage. The centering of the tool on the tool holder is done automatically, by tilting the tool on the gripping axes during its lifting. According to an exemplary implementation of the invention, the receiving portions 5 are in the form of hooks or semicircular notch whose inner diameter is slightly greater than the outer diameter of the gripping axes they are able to receive. These hooks allow a grip of the tool at once safe, fast and easy. They also allow the tool to be mounted one way or the other, which can be useful especially for buckets, which can be used as loader or excavator, ie upside down if necessary, because the tool holder is reversible. According to another example of implementation of the invention, the first receiving parts each have a gripping finger partially covering their opening, while the second receiving parts are devoid of it. Thus, thanks to the gripping fingers, the tool can not fall from the tool holder, even in case of inadvertent unlocking. According to another embodiment of the invention, the fixed part of the locking jack comprises a mounting pin on each of its lateral faces which is held on the fork by a chamfered holding ring 20. According to another exemplary embodiment of the invention, the mobile part of the locking cylinder comprises a mounting pin on each of its lateral faces which is held at the end of the assembly of rods and jacks by a chamfered retaining ring.
    [0006] The tool holder can thus take the tool with a small angle, thanks to the gripping chamfers. According to an exemplary implementation of the invention, the locking cylinder is a hydraulic cylinder. According to a further example of implementation of the invention, the locking cylinder 30 is equipped with a non-return valve which blocks the fluid in the large chamber when the locking cylinder is subjected to external forces. This non-return valve can be placed in the stem as close as possible to the chamber to be protected. It avoids the inadvertent accidental approaching of the gripping axes in order to avoid the accidental unlocking of the tool.
    [0007] According to another exemplary embodiment of the invention, the locking jack has an over-travel provided so that the locking bolt output position does not correspond to the end of its stroke. . Thus, the tool holder is provided with a catch of play to compensate for wear. Likewise, the various axes of the tool holder are surface treated to increase their wear resistance and are removable so that they can be easily replaced without having to completely disassemble the tool holder or replace it entirely. . According to a further example of implementation of the invention, the locking cylinder is equipped with a means for detecting the position of the rod so as to ensure that the tool is locked correctly by the tool holder. . Finally, among the many other advantages of the invention, the tool may comprise receiving means on several of its faces to be taken by the tool holder in several locations and positions. This architecture also allows weight gain over known solutions. BRIEF DESCRIPTION OF THE DRAWINGS Other characteristics and advantages of the present invention will emerge more clearly on reading the description which follows, with reference to the appended drawings, given by way of non-limiting examples, in which: FIG. 1 is a perspective view of a tool holder according to the invention; Figure 2 is a perspective view of the working arm of a construction machine equipped with a tool holder according to the invention; Fig. 3 is a perspective view of the working arm of Fig. 1 with an excavator bucket type tool mounted on the tool holder according to the invention, in which the working arm and the tool holder are in a phantom; Figure 4 is a perspective view of the working arm of Figure 1 with a loader-type tool mounted on the tool holder according to the invention, wherein the working arm and the tool holder are in phantom; Figures 5 to 11 are side views illustrating the gripping and locking sequences of an excavator bucket type tool by a work arm equipped with a tool holder according to the invention; Figures 12 to 17 are side views illustrating the gripping and locking sequences of a retro bucket-type tool taken by loader 35 by a working arm equipped with a tool holder according to the invention; Figure 18 is a detailed profile view of a tool holder according to the invention in the locking position of a tool; FIG. 19 is a detailed profile view of a tool holder according to the invention in the unlocked position of a tool; and Fig. 20 is a perspective view of an excavator carrying bucket comprising a plurality of sockets adapted to allow a tool holder according to the invention to grip it. Embodiment (s) of the Invention The structurally and functionally identical elements present in several distinct figures are assigned the same numerical or alphanumeric reference. The tool holder (1) according to the invention as shown in isolation in FIG. 1 is designed to equip the free end of the working arm (2) with a construction machine, for example of the backhoe type, as this is shown in FIG. 2. The working arm (2) comprises a pendulum (3) terminated by a fork (4) and equipped with a set of rods and jacks (5) intended to manipulate the tool ( 6) mounted on its free end. This set of rods and jacks (5) is known to those skilled in the art and will not be detailed here. The tool holder (1) comprises a locking cylinder (7) comprising a fixed part (8) mounted at the free end of the rocker arm (3), and a movable part (9) connected to the fixed part (8). by a rod (10) and mounted at the end of the assembly of rods and jacks (5). The locking cylinder (7) is a hydraulic cylinder. On each of its lateral faces (11, 12) the fixed part (8) of the locking cylinder (7) has a mounting axis (13, 14) pivotally mounted between the flanges (15, 16) of the fork (4). ). The mounting pins (13, 14) are mounted on the flanges (15, 16) and held laterally by the retaining rings (17, 18). Similarly, on each of its lateral faces (19, 20) the movable part (9) of the locking cylinder (7) has a mounting axis (21, 22) mounted pivoting at the end of the set of rods and cylinders (5), this assembly being locked laterally by retaining rings (23, 24). The tool holder (1) is thus pivotally mounted at the free end of the rocker arm (3) so as to be pivotable in a vertical plane by the movements of the assembly of rods and jacks (5).
    [0008] Each of the mounting pins (13, 14, 21, 22) extends beyond the retaining rings (17, 18, 23, 24) by a gripping axis (25, 26, 27, 28). There are thus two first gripping axes (25, 26) extending laterally at the fixed part (8) of the locking cylinder (7), and two second gripping axes (27, 28) extending laterally at the mobile part (9) of the locking cylinder (7). The various axes (13, 14, 21, 22, 25, 26, 27, 28) of the tool holder (1) are the only parts which can wear out by friction with the other parts in contact. Therefore, these axes (13, 14, 21, 22, 25, 26, 27, 28) preferentially undergo a surface treatment to increase their wear resistance, and they are removable so that they can be easily replaced without have the tool holder (1) completely disassembled or completely replaced.
    [0009] As illustrated in FIGS. 3 and 4, the tool holder (1) makes it possible to assemble a tool (6) in a reversible manner, thus making it possible, by way of example, to mount a bucket in the excavation position ( see Figure 3) or in the loading position (see Figure 4). Although in the various figures the tool (6) is represented by way of example in the form of a bucket, it is understood that the invention is intended for all types of working tools such as those mentioned above. high. For this purpose, the tool (6) comprises at least two receiving assemblies (29, 30) adapted to cooperate with the gripping axes (25, 26, 27, 28) of the tool holder (1). These receiving assemblies (29, 30) may be provided on the rear face of the tool (6), i.e. on its face directed towards the tool holder (1) when mounted on this one. They can also be provided on the front face of the tool (6), especially in the case where it can be used on one side or the other. Similarly, since the tool holder (1) is reversible, the receiving sets (29, 30) can be provided in one direction or the other.
    [0010] Nevertheless, whatever the tool (6), these receiving assemblies (29, 30) must always be provided in pairs for the reception of the gripping axes (25, 26, 27, 28), a receiving assembly ( 29, 30) which can be common to two adjacent pairs. Each receiving assembly (29, 30) has two receiving portions 30 (31, 32, 33, 34) whose openings are facing each other and each provided for receiving one of the gripping axes (25, 26, 27, 28). These receiving portions (31, 32, 33, 34) are preferably in the form of hooks or semicircular notch whose internal diameter is slightly greater than the external diameter of the gripping axes (25, 26, 27, 28) that they receive. For each receiving assembly (29, 30), the first receiving portions (31, 33) each have a gripping finger (35, 36) partially covering their aperture, while the second receiving portions (32, 34) ) do not have one. These gripping fingers (35, 36) facilitate and secure the gripping of a tool (6) by the tool holder (1) as described below.
    [0011] Referring now to FIGS. 5 to 11, by way of example, we will describe the sequences of gripping and locking of an excavator bucket tool (6) by a working arm equipped with a tool holder (1). While the tool (6) is on the ground (see FIG. 5), the operator moves the working arm (2) so as to approach the tool holder (1) at the receiving assemblies (29, 30). and introducing the first gripping axes (25, 26) into the first receiving portions (31, 33) under the gripping fingers (35, 36). This step does not present any particular difficulty for the operator who has an unobstructed view of the tool holder (1) and the receiving assemblies (29, 30) of the tool (6). As can be seen in particular in FIG. 1, the retaining rings 15 (17, 18) and (23, 24) are preferably chamfered to guide and facilitate gripping of the tool (6) by the gripping axes (25, 26, 27, 28) of the tool holder (1). The operator then raises the working arm (2) (see Figure 6) so as to lift the tool (6) at the first receiving portions (31, 33) by the first gripping axes (25, 26). By doing this, by the own weight of the tool (6), the first gripping axes (25, 26) are wedged at the bottom of the first receiving parts (31, 33) and the tool (6) is centered on itself on the tool holder (1). The tool (6) is then suspended by the first gripping axes (25, 26) in rocking around the receiving sets (29, 30). Thanks to the gripping fingers (35, 36), the tool is not likely to unhook from the first gripping axes (25, 26), even in the event of a large amplitude rocker movement. The locking cylinder (7) is then retracted (see Figure 7), so as to bring the first gripping axes (25, 26) of the second gripping axes (27, 28) as close as possible.
    [0012] The operator then actuates the assembly of rods and jacks (5) of the working arm (2) (see FIG. 8) so as to introduce the second gripping axes (27, 28) into the receiving assemblies (29). , 30). With the jack in the retracted position, the second gripping axes (27, 28) can thus penetrate into the receiving assemblies (29, 30) and face the second receiving portions (32, 34). The operator then continues the movement of the assembly of rods and jacks (5) of the working arm (2) (see FIG. 9) so as to make the second gripping axes (27, 28) come into contact with each other. abutment in the bottom of the receiving assemblies (29, 30) and to exert a thrust which causes the tilting of the tool (6) around the first gripping axes (25, 26). When the operator notices the tilting of the tool (6), he knows that the latter 5 is in engagement with the tool holder (1) and that he can therefore lock it. For this, the locking cylinder (7) is then released (see Figure 10), so as to move the first axes of gripping (25, 26) of the second gripping axes (27, 28). These gripping axes (25, 26, 27, 28) are then engaged at the bottom of each of their associated receiving part (31, 33, 34, 35), which blocks the tool (6) in position. By locking the locking cylinder (7) in this position, the tool (6) is then locked on the tool holder (1) and can be used in a conventional manner (see Figure 11). Referring now to FIGS. 12 to 17, by way of example, it is possible to understand the gripping and locking sequences of a retro bucket-type tool (6) taken in loader by a working arm equipped with a tool holder (1). While the tool (6) is on the ground (see FIG. 12), it is the second gripping axes (27, 28) which are introduced into the first receiving parts (31, 33) under the gripping fingers (35, 36).
    [0013] The operator then raises the working arm (2) (see FIG. 13), and then the locking cylinder (7) is retracted (see FIG. 14). The first gripping axes (25, 26) are then introduced into the receiving assemblies (29, 30), and face the second receiving portions (32, 34) (see FIG. 15). The operator then continues the movement of the assembly of connecting rods and jacks (5) until the tool (6) tilts around the second gripping axes (27, 28). The operator then actuates the locking cylinder (7) in the extended position (see Figure 16) to lock the tool (6) in position. The tool (6) is then locked on the tool holder (1) and can be used in a conventional manner (see Figure 17). It will be appreciated that the sequences described above are substantially similar. For obvious safety reasons, regardless of the tool (6) to be mounted on the working arm (2), we always start by introducing the appropriate gripping axes in the first receiving parts (31, 33) under the fingers gripping (35, 36). By its reversibility, the tool holder (1) advantageously allows to take and lock a tool (6) in both directions. The principle of locking the tool (6) by the tool holder (1) is shown in FIGS. 18 and 19. In FIG. 18, the jack is in the extended position and the gripping pins (25, 26, 27, 28) are abutted at the bottom of each of their associated receiving part (31, 33, 34, 35). The tool (6) is maintained and can not fall out. In case of failure of the locking cylinder (7), or if it is forced so as to extract the gripping axes (25, 26, 27, 28) out of their receiving part (31, 33, 34, 35). ), only the gripping axes (25, 26, 27, 28) located in the second receiving portions (32, 34) can be extracted from the receiving sets (29, 30), while the other holding pins (25, 30) , 26, 27, 28) will remain retained in the first receiving portions (31, 33) due to the presence of the gripping fingers (35, 36). The partially unlocked tool then tilts around these gripping axes (25, 26, 27, 28) but does not come off completely from the tool holder (1) and can not fall, which is particularly safe. In order to prevent the gripping axes (25, 26, 27, 28) from accidentally coming together, the locking jack (7) is preferably equipped with a non-return valve which blocks the fluid in the large chamber when the jack locking device (7) is subjected to external forces, for example induced by digging. This non-return valve is preferably placed in the rod (10) as close as possible to the chamber to be protected, in order to overcome possible leaks between the chamber and the valve, if the latter were deported and connected to the chamber by means of flexible or the like. According to a preferred embodiment of the invention, the locking output position of the locking jack (7) does not correspond to the end of its stroke, which makes it possible to continue to use the same locking jack (7). ) 25 for the tool holder (1) in case of play resulting for example from a problem of wear or deformation of the parts. Thus, if the locking output position of the locking cylinder (7) requires a stroke greater than that previously required for locking, an upper stroke is available for the locking cylinder (7). According to this embodiment of the invention, because of the over-travel it has, the locking cylinder (7) then comprises a means for detecting the position of the rod (10) so that ensure that the tool (6) is correctly locked by the tool holder (1). It is obvious that the present description is not limited to the examples explicitly described, but also includes other embodiments and / or implementation. Thus, a described technical feature can be replaced by an equivalent technical characteristic without departing from the scope of the present invention and a described step of implementing the method can be replaced by an equivalent step without departing from the scope of the invention. Thus, the invention can be adapted to any type of tool, and the tools can comprise several receiving assemblies (29, 30) provided in pairs, for example on their front and rear faces so as to be able to freely mount them in a direction or in the other on the tool holder (1). For example, a transport bucket for carrying several tools with the one mounted on the machine for travel on the sites is shown in Figure 20, with several receiving assemblies (29, 30) provided in pairs.
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. An assembly comprising a tool (6) and a tool holder (1) provided to allow rapid and reversible assembly of a tool (6) on the free end of the working arm (2) of a construction or public works vehicle, the working arm (2) comprising a rocker (3) terminated by a fork (4) and equipped with a set of rods and jacks (5) provided for manipulating the tool (6). ) when mounted on its free end, characterized in that: - the tool holder (1) comprises a locking jack (7) having a fixed part (8) rotatably mounted on the free end of the balance ( 3), and a movable part (9) connected to the fixed part (8) by a rod (10) and pivotally mounted on the end of the assembly of connecting rods and cylinders (5); - the tool holder (1) comprises two first gripping axes (25, 26) extending laterally on each side of the fixed part (8) and two second gripping axes (27, 28) extending laterally on each side of the movable part (9) of the locking cylinder (7); - The tool (6) comprises at least two receiving assemblies (29, 30) adapted to cooperate with the gripping axes (25, 26, 27, 28) of the tool holder (1); each receiving assembly (29, 30) has a first receiving part (31, 33) and a second receiving part (32, 34) whose openings are facing each other and each intended to receive one of the first axes of gripping (25, 26) and one of the second gripping axes (27, 28) for holding the tool (6) on the tool holder (1); - The tool (6) is adapted to be locked and unlocked on the tool holder (1) by means of the locking cylinder (7) by reversibly varying the distance separating the movable part (9) from the fixed part. (8) thereof, between an output position of the locking cylinder (7) in which each of the first gripping axes (25, 26) abuts the bottom of its receiving portion (31, 33 or 32, 34) associated and each of the second gripping axes (27, 28) is in abutment with the bottom of its associated receiving part (32, 34 or 31, 33), and an input position of the locking cylinder (7) in which the gripping axes can be extracted from reception sets (29, 30).
    [0002]
    2. An assembly formed of a tool (6) and a tool holder (1) according to claim 1, characterized in that the receiving portions (31, 32, 33, 34) are in the form of hooks or semicircular notch whose inner diameter is slightly greater than the outer diameter of the gripping axes (25, 26, 27, 28) 3027037 -13- they are able to receive.
    [0003]
    3. An assembly formed of a tool (6) and a tool holder (1) according to any one of the preceding claims, characterized in that the first receiving parts (31, 33) each have a gripping finger ( 35, 36) partially covering their opening, while the second receiving parts (32, 34) are devoid thereof.
    [0004]
    4. An assembly formed of a tool (6) and a tool holder (1) according to any one of the preceding claims, characterized in that the fixed portion (8) of the locking cylinder (7) comprises an axis mounting (13, 14) on each of its side faces (11, 12) which is held on the fork (4) by a chamfered retaining ring (17, 18).
    [0005]
    5. An assembly formed of a tool (6) and a tool holder (1) according to any one of the preceding claims, characterized in that the movable portion (9) of the locking cylinder (7) comprises an axis mounting (21, 22) on each of its 15 side faces (19, 20) which is held at the end of the assembly of rods and cylinders (5) by a retaining ring (23, 24) chamfered.
    [0006]
    6. An assembly formed of a tool (6) and a tool holder (1) according to any one of the preceding claims, characterized in that the locking jack (7) is equipped with an anti-tamper valve. return which blocks the fluid in the large chamber when the locking cylinder (7) is subjected to external forces.
    [0007]
    7. An assembly formed of a tool (6) and a tool holder (1) according to the preceding claim, characterized in that the non-return valve is placed in the rod (10) closer to the chamber to protect.
    [0008]
    8. Assembly formed by a tool (6) and a tool holder (1) according to any one of the preceding claims, characterized in that the locking cylinder (7) has an over-stroke provided for the locking position of the locking cylinder (7) does not correspond to the end position of the latter.
    [0009]
    9. Assembly formed by a tool (6) and a tool holder (1) according to the preceding claim, characterized in that the locking cylinder (7) is equipped with a means for detecting the position of the rod (10) so as to ensure the proper locking of the tool (6) by the tool holder (1).
    类似技术:
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    同族专利:
    公开号 | 公开日
    US20170275847A1|2017-09-28|
    FR3027037B1|2018-01-26|
    WO2016059328A1|2016-04-21|
    US10815635B2|2020-10-27|
    EP3009570A1|2016-04-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    DE4109783A1|1990-03-23|1991-09-26|Hilton S Enterprises Inc Pty L|Bucket for earth moving machine - is held in place by hydraulic cylinders which hold attachment hooks in engagement|
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    法律状态:
    2015-10-30| PLFP| Fee payment|Year of fee payment: 2 |
    2016-04-15| PLSC| Publication of the preliminary search report|Effective date: 20160415 |
    2016-10-31| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-24| PLFP| Fee payment|Year of fee payment: 4 |
    2018-10-27| PLFP| Fee payment|Year of fee payment: 5 |
    2019-10-30| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-29| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-28| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1459818A|FR3027037B1|2014-10-13|2014-10-13|TOOL HOLDER FOR CONSTRUCTION OR PUBLIC WORKS EQUIPMENT|
    FR1459818|2014-10-13|FR1459818A| FR3027037B1|2014-10-13|2014-10-13|TOOL HOLDER FOR CONSTRUCTION OR PUBLIC WORKS EQUIPMENT|
    EP15188105.9A| EP3009570A1|2014-10-13|2015-10-02|Tool holder for a construction or public works vehicle|
    US15/504,237| US10815635B2|2014-10-13|2015-10-09|Tool holder for a work vehicle or construction machine|
    PCT/FR2015/052721| WO2016059328A1|2014-10-13|2015-10-09|Tool holder for a work vehicle or construction machine|
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