(19)
(11)EP 3 575 495 A1

(12)EUROPEAN PATENT APPLICATION

(43)Date of publication:
04.12.2019 Bulletin 2019/49

(21)Application number: 18187274.8

(22)Date of filing:  03.08.2018
(51)Int. Cl.: 
E02F 3/36  (2006.01)
E02F 3/40  (2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30)Priority: 01.06.2018 WO PCT/CN2018/089554

(71)Applicant: Guangxi LiuGong Machinery Co., Ltd.
Liuzhou Guangxi 545007 (CN)

(72)Inventors:
  • Wagner, Edward
    Liuzhou, Guangxi 545001 (CN)
  • Major, Gary
    Stoke-on-Trent, Staffordshire ST6 4BF (GB)
  • Zhao, Yunfeng
    Liuzhou, Guangxi 545007 (CN)

(74)Representative: Wachenhausen & Kollegen Patentanwälte GbR 
Schellingstrasse 29
80799 München
80799 München (DE)

  


(54)MULTIPLE INTERFACE TOOL FOR A CONSTRUCTION MACHINE


(57) The invention relates to a tool (10) for a construction machine (1) comprising a first interface (110), which is located at a first location (111) on the tool, and a second interface (120), which is located at a second location (121) on the tool, the second location being different from the first location, wherein each of the first interface and the second interface is individually configured to mount the tool on the construction machine. The invention further relates to a tool arrangement comprising such a tool, a construction machine comprising such a tool arrangement, and method of utilizing such a tool.




Description

Technical field



[0001] The invention concerns a tool for a construction machine. The tool comprises an interface that is located on the tool. The interface is configured to mount the tool on the construction machine.

[0002] The invention also concerns a tool arrangement for a construction machine. The tool arrangement comprises a tool that is mounted on a tool carrier of the construction machine. The tool carrier is attached to a chassis of the construction machine. The invention further concerns a construction machine with such a tool arrangement. Moreover, the invention concerns a method of utilizing a tool on a construction machine, wherein the construction machine comprises an articulated boom.

Prior art



[0003] Construction machines having a bucket as a working tool that is mounted on an articulated boom are known. Additionally, said construction machines may carry a dozer blade that is mounted on the chassis of the construction machine. Said construction machine may either be operated in an excavator mode using the bucket on the articulated boom or in a dozer mode using the dozer blade.

Summary of the invention



[0004] The tool for a construction machine according to the present invention comprises a first interface and a second interface. The first interface is located at a first location on the tool. The second interface is located at a second location on the tool, wherein the second location is different from the first location. Each of the first interface and the second interface is individually configured to mount the tool on the construction machine.

[0005] The interfaces of the tool may each be means for providing a connection of the tool with the construction machine. Accordingly, the tool comprises two separate means for providing such connections. Said connections may be mechanical connections. A first mechanical connection may connect the tool with the construction machine via the first interface. A second mechanical connection may connect the tool with the construction machine via the second interface. A mechanical connection may be an articulated connection, in particular an articulated joint. Additionally or alternatively, a mechanical connection may be a rigid connection, in particular a rigid coupling.

[0006] The construction machine may provide different operational modes. In a first operational mode of the construction machine, the tool may be mounted on the machine via the first interface. In a second operational mode of the construction machine, the tool may be mounted on the construction machine via the second interface. Additionally or alternatively, one of the interfaces may be configured to mount the tool on the construction machine in two different operational modes of the machine.

[0007] The tool may be mounted on a tool mount or a tool carrier of the construction machine via at least one of the interfaces. Mounting the tool on the construction machine is understood as installing or attaching the tool to the construction machine. Accordingly, some kind of interlocking of the tool and the construction machine may be required. The tool may be mounted on the construction machine for being utilized and/or for being stored on the construction machine.

[0008] The construction machine may be a loader or an excavator providing at least one additional operational mode, in particular a dozer mode. The construction machine may be a combined excavator-dozer or loader-dozer. The tool may be configured such that it may be utilized as a loader and/or excavator bucket and/or as a dozer tool. The first interface may be configured to mount the tool on the construction machine in an excavator or loader mode, wherein the tool may be mounted on the articulated boom of the construction machine in said mode. The second interface may be configured to mount the tool on the construction machine in a dozer mode, wherein the tool may be mounted on the chassis of the construction machine in said mode. For this purpose, the tool may be mounted on the rear or front of the chassis of the construction machine.

[0009] According to the present invention, a multi-functional tool for a construction machine is provided. The tool may serve different tool applications, e.g. it may be used as loader or excavator bucket and as a dozer tool. For utilizing the tool for said different applications, it comprises different tool interfaces, each of the interfaces being configured for mounting the tool on the construction machine. For example, if the tool is supposed to be used as a loader/excavator tool, it is mounted on the articulated boom of the construction machine via the first interface, and if the tool is supposed to be used as a dozer tool, it is mounted on the chassis of the construction machine via the second interface.

[0010] The interfaces of the tool according to the present invention may be configured such that the first interface comprises a first locking means and the second interface comprises a second locking means. Each of the first locking means and the second locking means may be configured to engage with the construction machine. The locking means may be located adjacent or spaced apart from one another on the tool. The first and/or second locking means may comprise a male or female part of a locking mechanism, wherein the respective counterpart may be provided on the construction machine. The locking means may be configured to provide a single engagement configuration. Additionally or alternatively, the first and/or second locking means may provide different engagement configurations, e.g. the tool may be mounted on a tool mount of the construction machine in different orientations, which may be twisted relative to each other.

[0011] Generally, the locking means may be designed as any outwardly or inwardly protruding locking means that enables an attachment of the tool to the construction machine. The locking means may be designed as a latching means. Particularly, the first interface of the tool according to the present invention may comprise at least one handle for grabbing the tool by a tool mount of the construction machine. The tool mount may be provided at an articulated boom of the construction machine. Additionally or alternatively, the second interface of the tool may comprise such a handle. For grabbing the handle, the tool mount may comprise a pliers-like device. The handle may be a pin. Two handles may be provided for a double grabbing of said tool.

[0012] The second interface of the tool according to the present invention may comprise at least one bracket for attaching the tool to a tool carrier of the construction machine. Additionally or alternatively, also the first interface of the tool may comprise such a bracket. The bracket may comprise at least one plate, wedge or lip forming the bracket. For attaching the bracket to the construction machine, a plate-like device may be provided on the construction machine on which the bracket may be slid on. The plate-like device may be part of a tool carrier of the construction machine. Alternatively or additionally, the first interface of the tool may be configured to engage with a tool carrier and/or the second interface of the tool may be configured to engage with a tool mount of the construction machine.

[0013] The second interface of the tool according to the present invention may comprise two brackets which are spaced apart from each other. Said two brackets may provide a double engagement by a tool carrier. This ensures a stiff and rigid connection between the tool and the tool carrier. The same may apply to the first interface regarding a respective double grabbing of the tool by the tool mount. Accordingly, with this embodiment, the tool is not bent or damaged when asymmetrical forces or moments are acting thereon during material handling, for example.

[0014] The first interface and/or the second interface of the tool according to the present invention may comprise a detent for locking an engagement of the construction machine with the tool. The detent may be provided for preventing the tool from losing contact to the tool mount or tool carrier of the construction machine. Particularly, a pivoting of the tool when being grabbed by the tool mount or when being attached to the tool carrier may be blocked by engaging the detent. The tool mount or the tool carrier may comprise a latch or a bolt, which may snap in the detent. In other words, the latch or bolt may be slid or retained in the detent. Additionally or alternatively, in a reverse arrangement, the tool may comprise a latch or bolt to be engaged with a detent, which is arranged on the tool mount or tool carrier of the construction machine.

[0015] The tool according to the present invention may be designed such that the first interface is located on a first face of the tool and the second interface is located on a second face of the tool, the second face being different from the first face. The provision of the interfaces at different faces allows for a mounting of the tool with different configurations and/or orientations. The tool according to the present invention may further be designed such that the first face of the tool is angled with respect to the second face of the tool, in particular angled at an obtuse angle. The obtuse angle may be an angle between 90 degrees and 180 degrees. Alternatively, the angle between the first and second faces may be an acute angle.

[0016] The present invention further concerns a tool arrangement for a construction machine. The tool arrangement comprises a tool according to any of the above described embodiments and a tool carrier that is configured to be attached to a chassis of the construction machine, wherein the tool is detachably mountable on the tool carrier via the first interface and/or the second interface. The tool may be any tool, in particular a bucket. By mounting said bucket on the tool carrier, it may be utilized as dozer tool. The bucket may be a loader bucket or an excavator bucket, which may be mounted via one of the interfaces on an articulated boom of the construction machine. The tool carrier of the tool arrangement according to the present invention may be an arm that is attachable to the chassis of the construction machine. The chassis may be a wheel-driven chassis or a chain-driven chassis.

[0017] The tool arrangement according to the present invention may further comprise a hydraulic and/or electric adjustment mechanism, in particular a hydraulic positioning cylinder, for providing a height adjustability of the tool arrangement with respect to the chassis of the construction machine. Alternatively or additionally, an electric actuator may be provided for adjusting the height of the tool arrangement with respect to the chassis of the construction machine. Changing the height of the tool may provide a tool storage position and a tool usage position, wherein the tool usage position may be a dozing position of the tool.

[0018] The invention further concerns a construction machine comprising a tool or a tool arrangement according to any of the above described embodiments.

[0019] The invention further concerns a method of utilizing a tool on a construction machine having an articulated boom. The construction machine may be the construction machine according to the above described embodiment. The method comprises the step of depositing or picking, by the articulated boom, the tool according to any of the above described embodiments on or from the tool carrier of the construction machine. Depositing and/or picking of the tool may be carried out by the tool mount or the tool carrier.

Brief description of the figures



[0020] 
Fig. 1
shows a side view of a tool according to an embodiment of the present invention.
Fig. 2
shows a back view of the tool of Fig. 1.
Fig. 3
shows a top view of tool of Fig. 1.
Fig. 4
shows a side view of a tool arrangement according to an embodiment of the present invention.
Fig. 5
shows a side view of the tool carrier of the tool arrangement of Fig. 4.
Fig. 6
shows a side view of a construction machine according to an embodiment of the present invention with the tool of Fig. 1 mounted on a tool carrier.
Fig. 7
shows a side view of the construction machine of Fig. 6 with the tool of Fig. 1 mounted on an articulated boom.

Detailed description of embodiments



[0021] Embodiments of the present invention are subsequently described with reference to the attached Figs. 1 to 7.

[0022] Figs. 1 to 3 show an embodiment of a tool 10 according to the present invention. In this embodiment, the tool 10 is designed as a loader bucket 11. The loader bucket 11 is configured for being mounted on a tool carrier 40 and on an articulated boom 2 of a construction machine 1, as shown in Figs. 4 to 7.

[0023] The loader bucket 11 may have five faces, a first face 12 as a top face, a second face 13 as a rear face, a third face 14 as a bottom face and two side faces 17. Said five faces 12, 13, 14, 17 may form a bucket as a partly closed container being open at a front 18. Thus, the faces 12, 13, 14, 17 define the volume of the loader bucket 11. The angle between the first face 12 and the second face 13 may be approximately 135 degrees in the present embodiment.

[0024] The loader bucket 11 comprises a first interface 110 at a first location 111 and a second interface 120 at second locations 121. The first interface 110 is configured to mount the loader bucket 11 on an articulated boom 2, and the second interface 120 is configured to mount the bucket 11 on a tool carrier 40. The first interface 110 may be arranged on the first face 12 of the loader bucket 11 and the second interface 120 may be arranged on the second face 13 of the loader bucket 11. The first interface 110 may be located at a centered location 111 on the first face 12. The second interface 120 may be provided at two locations 121 on the second face 13, said two locations 121 being situated apart from one another. The two locations 121 may be arranged symmetrically to the centered location 111 on the loader bucket 11.

[0025] The first interface 110 may comprise a first locking means 112. The first locking means 112 may comprise two handles 130. Both handles 130 may be arranged parallel to the first face 12, wherein both handles 130 may be arranged above the first face 12. Both handles 130 may be grabbed by a tool mount 3 of the articulated boom 2.

[0026] The second interface 120 may comprise a second locking means 122. The second locking means 122 may comprise two brackets 140. Both brackets 140 may be spaced apart from each other and may be arranged substantially parallel to the second face 13. Both brackets 140 may include a base plate 141 and a protrusion 142 attached to the base plate 141 at an upper portion thereof, wherein the base plate 141 and the protrusion 142 may be angled with respect to each other with an acute angle forming a mounting support. A detent 150 may be provided in the base plate 141 as an opening. Both brackets 140 may be mounted on the tool carrier 40.

[0027] Figs. 4 and 5 show an embodiment of a tool arrangement 200 according to the present invention. The tool arrangement 200 comprises a tool carrier 40, which is shown in combination with a tool 10 mounted thereon in Fig. 4 and alone in Fig. 5. In this embodiment, the tool 10 is the loader bucket 11 as described with reference to Figs. 1 to 3 above.

[0028] The tool carrier 40 comprises a holding arm 41 with a pivot joint 42 at one end and a holder 43 at the other end thereof. The holding arm 41 may be pivotably attached to a chassis 4 of a construction machine 1 via the pivot joint 42. For actuating a pivoting movement of the holding arm 41, an adjustment mechanism 210 is provided. This adjustment mechanism 210 comprises a hydraulic positioning cylinder 212 interconnecting the holding arm 41 with the chassis 4 of the construction machine 1. By actuating the hydraulic positioning cylinder 212, the holding arm 41 with the holder 43 attached thereto is pivoted around the pivoting joint 42. Alternatively or additionally, an electric actuator (not shown) may be provided for pivoting the holding arm 41 around the pivoting joint 42. For this purpose, at least one battery (not shown) and an electric motor (not shown) may be arranged on the construction machine 1 for operating and powering the electric actuator.

[0029] The holder 43 of the tool arrangement 200 comprises two end plates 44 with a seating 45 at the top of each end plate 44 (only one end plate 44 is shown). The brackets 140 of the loader bucket 11 may be engaged with the end plates 44, wherein the protrusions 142 of the brackets 140 may rest on the seatings 45 of the end plates 44.

[0030] The holder 43 may further comprise a lock 45 arranged at least on one of the end plates 44. The lock 45 may engage with the detent 150 of the base plate 141 when the bracket 140 rests on the end plate 44, so as to realize a safety engagement. The lock 45 may be actuated manually, electrically and/or hydraulically by a manual, electric and/or hydraulic actuating mechanism (not shown).

[0031] Figs. 6 and 7 show an embodiment of a construction machine 1 according to the present invention. The construction machine 1 of this embodiment is a chain-driven loader-excavator, which may additionally be operated in a dozer mode. The tool arrangement 200 of Figs. 4 and 5 is arranged on a chassis 4 of the construction machine 1.

[0032] In Fig. 6, the tool 10 is mounted on the tool carrier 40 via the brackets 140. The construction machine 1 is operated in a dozer mode, in which the tool carrier 40 is pivoted downwards to place the bottom face 14 of the bucket 11 on the ground. In this operational mode, the articulated boom 2 is not in use and the loader bucket 11 is utilized as a dozer blade.

[0033] In Fig. 7, the tool 10 is mounted on a tool mount 3 of the articulated boom 2 of the construction machine 1 via the handles 130 to operate the construction machine in a loader mode. The construction machine 1 can be transferred from the dozer mode illustrated in Fig. 6 to the loader mode illustrated in Fig. 7 by picking up the tool 10, which is attached on the tool carrier 40 via the brackets 140, with the tool mount 3 of the articulated boom 2. Specifically, the tool mount 3 snaps into the first interface 110, i.e. the handles 130, of the loader bucket 11. After picking up the loader bucket 11 with the tool mount 3, the upper structure may be rotated by 180 degrees with respect to the chassis.

[0034] Furthermore, in Figs. 6 and 7, an additional tool carrier 150 is shown, which may be provided on the construction machine 1 for storing and changing additional tools. Said tool carrier 50 may carry an additional excavator bucket 21, which may be mounted on the tool mount 3 of the articulated boom 2.

[0035] In the above described embodiments, a multi-functional tool 10 in combination with a construction machine 1 is described. Said tool 10 is configured to be used for different operational modes of the construction machine by comprising different interfaces 130, 140, each being designed for a specific one of said operational modes.


Claims

1. Tool (10) for a construction machine (1), in particular a loader bucket (11), with
a first interface (110) that is located at a first location (111) on the tool (10), and
a second interface (120) that is located at a second location (121) on the tool (10) being different from the first location (111),
wherein each of the first interface (110) and the second interface (120) is individually configured to mount the tool (10) on the construction machine (1).
 
2. Tool (10) according to claim 1, wherein
the first interface (110) comprises a first locking means (112), and
the second interface (120) comprises a second locking means (122),
wherein each of the first locking means (112) and the second locking means (122) is configured to be engaged with the construction machine (1).
 
3. Tool (10) according to one of the preceding claims, wherein
the first interface (110) comprises at least one handle (130) for grabbing the tool (10) by a tool mount (3) of the construction machine (1).
 
4. Tool (10) according to one of the preceding claims, wherein
the second interface (120) comprises at least one bracket (140) for attaching the tool (10) to a tool carrier (40) of the construction machine (1).
 
5. Tool (10) according to claim 4, wherein
the second interface (120) comprises two brackets (140) spaced apart from each other.
 
6. Tool (10) according to one of the preceding claims, wherein
the first interface (110) and/or the second interface (120) comprises a detent (150) for a safety engagement of the construction machine (1) with the tool (10).
 
7. Tool (10) according to one of the preceding claims, wherein
the first interface (110) is located on a first face (12) of the tool (10) and
the second interface (120) is located on a second face (13) of the tool (10), the second interface (120) being different from the first face (12).
 
8. Tool (10) according to claim 7, wherein
the first face (12) of the tool (10) is angled with respect to the second face (13) of the tool (10), in particular angled at an obtuse angle.
 
9. Tool arrangement (200) for a construction machine (1), comprising
a tool (10) according to one of the preceding claims, and
a tool carrier (40) configured to be attached to a chassis (4) of a construction machine (1),
wherein the tool (10) is detachably mountable on the tool carrier (40) via the first interface (110) and/or second interface (120).
 
10. Tool arrangement (200) according to claim 9, further comprising
an electric and/or hydraulic adjustment mechanism (210), in particular a hydraulic positioning cylinder (212), for providing a height adjustability of the tool arrangement (200) with respect to the chassis (4) of the construction machine (1).
 
11. Construction machine (1) comprising a tool arrangement (200) according to claim 9 or 10.
 
12. Method of utilizing a tool (10) on a construction machine (1) having an articulated boom (2), the construction machine (1) being the construction machine (1) according to claim 11, comprising the step:
depositing or picking, by the articulated boom (2), the tool (10) according to one of claims 1 to 8 on or from the tool carrier (40) of the construction machine (1).
 




Drawing