• 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 invention relates to a load gate combination in a truck vehicle of the type comprising a wheeled chassis (3), such as a forwarder for collecting and transporting felling tree lengths or the like, and comprising on the one hand a load gate (10) intended to delimit a load space (4) arranged in the truck from a the crane (22) and the driver's cab (11) included in the truck, as well as a suspension device (20) which pivotally supports the load gate (10) mounted on the chassis (3) of the truck. In order to reduce the risk of damage and thus costly downtime when handling timber, the following features are proposed; that the load gate (10) at the bottom comprises a body (37) which on each side of the longitudinal axis (C) of the transhipment vehicle is associated with a pivot point (42) for connecting one end of a single link arm (45, 46) and a pivot point (93) for connecting a end of a resilient member (90, 91), that the suspension device (20) comprises a support frame (36) arranged on the chassis (3) which on each side of the longitudinal axis (C) of the truck is associated with a pivot point (43) for connecting a second end of a link arm (45, 46) and a hinge point (92), respectively, for connecting a second end of a resilient member (90, 91), and that the load gate (10) is resiliently pivotally suspended on the support frame (36) by a combination of a combination of The invention also relates to a load gate and a suspension device for such a load gate combination arranged on one side of the longitudinal axis (C) arranged in single-conductor arrangement (35) and resilient means (90, 91). W: Other_Casedocuments Patent P410- P41001592SE00 100915 besk.docx
    公开号:SE1050982A1
    申请号:SE1050982
    申请日:2010-09-21
    公开日:2012-03-22
    发明作者:Anders Aastroem
    申请人:Komatsu Forest Ab；
    IPC主号:
    专利说明:

    1015202530352Such damage can mean costly downtime for the forwarder when work must be interruptedwhile the damage is repaired.
    US 2010/0104406 A1 describes a forwarder which to reduce the risk of injury attimber handling with the gripping device is equipped with a load gate combination withLoad gate and suspension system for this. The suspension system allows the iast gate toraised and lowered. The load gate can also be folded back in the direction via the suspension systemtowards the cargo area for increased accessibility during repair and maintenance. To be able to be taken outthe road during loading and unloading of timber with the gripping device is the fold-downthe gate is designed as two telescopically accommodated in each other (one in the other)load gate units, where in height one upper load gate unit can be raised and lowered throughimpact of a hydraulic cylinder. In addition to the iast gate through its telescopingconstruction is very susceptible to damage it suffers from another problem, namely thatthe crane operator's visibility is substantially limited by the complexity of the telescopic load gateconstruction with double structure.
    As mentioned above, the gate also has the task of preventing contact between itin the cargo hold occupied timber cargo and trees or other obstacles in the terrain when the forwarderdriven in its normal direction of travel. If the timber load, or for that matter the gate, wouldhook into any obstacle in the terrain, parts of the forwarder risk being damaged, for examplethe vertical supports of the cargo space or the like. To prevent contact with the obstacle terrainthe ice gate must be assigned such a large surface area or such a scope that it with itscircumferential outer frame extends slightly beyond the outer portions of the timber load. It shouldIt is understood that the requirements for Iastgrind with a large scope to protect the timber load when driving interrain is in opposition to the problems with the risks of collision between the crane armand load gate when handling timber by means of the gripping device and limiting the vehiclepassability in dense terrain.
    A first object of the present invention is therefore to provide oneload gate combination together with a load gate and a suspension device for such asreduces the risk of damage and thus costly downtime when handling timber withforwarders. Especially when it comes to damage when loading and unloading timber with the forwardercrane, but also damage that can occur during transport of timber cargo with the forwarder interrain. A second purpose is to enable more efficient timber handling at a forwarderabove all enable easy and fast loading and unloading of timber. A third purpose withthe invention is to facilitate the handling of timber which involves driving with cargo throughterrain.
    The first object of the invention is achieved by the features set forth insubsequent claims. Other advantages of the above inventions are apparent fromsub-requirements.
    W: Other_Casedocum ents Patent P410- P41001592SEO0 100915 besk.docx101520253035In the following, the invention is described in more detail with reference to the accompanying drawings,on which;fi QJ shows a side view of a truck for collecting felled trees that is equippedwith a load gate combination comprising a load gate and a suspension device forthis according to the inventionfl give a perspective view of the truck according to Fig. 1;fi go shows a detailed view in perspective of a load gate unaffected by external forces withsuspension device arranged therewith, and shown in a position removed from the truckshown in fig. 1 and 2;fi g¿ shows a detailed view in perspective of a load gate corresponding to that shown in fig.3, but under the influence of external forces, such as in the event of a collision with a crane arm during handlingof timber,fl gi shows a detail view from the side of a load gate with it arrangedsuspension device corresponding to that shown in fig. 4,fl gj shows a detailed view in perspective from behind of a load gate corresponding to the one thatshown in Fig. 5,fjgi shows on a larger scale a section along the line Vll-Vll in fig. and an elongated ithe device including stabilizing means andfl g _._ § schematically shows a hydraulic wiring diagram for the piston-cylinder meanswhich is part of the device is used for raising and lowering the load gate.
    Figures 1 and 2 show a truck in the form of an off-road forwarder as substantiallyconsists of a tractor 1 and a load carrier 2. The load carrier 2 is articulated to the tractor 1and has a conventional wheeled load-bearing chassis with longitudinal frame beams 3.
    The load carrier 2 has a load space 4 for receiving timber bounded byhorizontal load banks 5 with associated vertical upright supports 6 as in pairsdefines the respective long sides of the cargo space.
    A load gate combination according to the present invention is arranged in the load carrier 2front end. The load gate combination partly comprises a load gate 10 which delimitsthe front short side of the cargo space 4 towards a maneuverable lifting device included in the forwarder andin addition, a driver's cab 11, and a suspension device 20 which carries the load gate onLoad-bearing frame beams.
    The operable lifting device comprises one from a pillar-like base 21 itselfextending two-part crane arm 22 and a rotator 23 attached to its free end, by means ofwhich a gripping device 24 connected thereto with two forks movable towards each other canis rotated relative to the crane arm 22 and thus the gripping device is pivoted in vertical andthe horizontal plane. The load gate 10 arranged on the chassis 3 of the load carrier 2 constitutes a stopwhich protects the pillar-like base 21 of the crane and the cab 11 from shocks of the timberW: Other__CaSed0CumentS Patent P410- P41001592SE00 100915 beskdocx1015202530354is located in the cargo space 4. Furthermore, the loading gate is used as a stop against which itone end of a bundle of logs with force can be employed for alignment and alignment ofthe bundle during loading (not shown).In Figs. 3-5, the load gate combination 10, 20 is shown for the sake of clarity in a view exposed fromother parts. The load gate 10 included in the load gate combination is modularreplaceable parts and comprising a central main gate section 25 and one on each sidethis releasably attached side gate section 26, 26 ”. As best seen in Fig. 4 are mentionedside gate sections 26, 26 'each angled, about one towards the longitudinal direction of the gateperpendicular axis 31, slightly backwards in the direction of the load compartment 4. In order to have the requiredresistance to external forces of the kind that can occur in the event of a collision between crane arms 22and load gate 10, each such load gate module 25, 26, 26 'comprises a plurality of powerful onesframe sections of profile tubes joined at the ends form a circumferential imainly square or rectangular frame.
    In Fig. 3 it is further shown that in each such module 25, 26, 26 'there is a first pair of parallelsopposite frame sections 28, 29 interconnect a series of linear parallel wireselements in the form of flat iron-shaped struts 30 which, like a lattice or grid, are evenly distributedspaced apart between the other pair of parallel oppositesframe sections 31, 32. For the grid shall be easier to see through and for improvedforce-absorbing ability, the flat iron-shaped struts 30 have been oriented with their wider onespages facing each other. To withstand force from above, for example from a crane arm 22 whichmoving vertically downwards collides with the upper edge of the load gate 10 (see power arrow Fy),the struts 30 of the central main gate 25 extend linearly and substantially vertically betweenthe two horizontal upper and lower frame sections 28, 29 of the central main gatecorrespondingly resist force from the side, for example the force from a crane arm 22 whichmoving horizontally collides with the side edge of the load gate 10 (see force arrow Fy), extendsthe struts of the respective side gate section 26, 26 'are substantially horizontal ordiagonally aligned with only a limited inclination at an angle A to the horizontal plane between themboth vertical standing frame sections 31, 32. By limited inclination is meant here an angle Agreater than 0 ° but less than or equal to 45 °. It should be realized that thanks to thisdesign of the structure with transverse struts 30 interconnecting parallelopposite frame sections of the respective module 25, 26, 26 ', come via the struts forces such asoccurs in the collision to be efficiently transferred from the outer free frame section 28, 31 of amodule to a more stable opposite frame section of the module located further into the load gate.
    The combination of upright or vertical struts 30 for the central main gate section 25and horizontal or horizontal struts 30 for those on both side gate sections 26, 26 'further havethe advantage of choosing a different orientation for the internal gratings in relation to the load banks 5respectively the orientation of the struts 6 substantially improves the crane operator's overview and visibilityW: Other_Casedocum ents Patent P410- P41001592SE00 100915 besk.docx101520253035against the cargo space from the cab without the resultingshock absorption capacity is adversely affected. The reason for the significantly improvedlastg rindensthe overview into the cargo space from the cab 11 is simply to the centralthe vertically standing strut of the main gate section stands in substantially opposite angle tothe horizontal banks 5 of the cargo space and in the same way the side gate sections 26, 26 'horizontal struts in substantially opposite angle to the standing supports' standing supports 6. Throughutilizing these contrasts makes it easier for the operator to distinguish the different of the cargo spaceparts when loading and unloading timber. In addition, the advantage is obtained that the load gate becomes lightto manufacture through its simple construction with few components. Throughthe module construction, the load gate 10 can be easily adapted to the different and requirements that are setat cargo spaces of different dimensions by varying the side gate sections 26, 26 'size and shape using a central main gate section common to them 25.
    The suspension device 20 included in the invention comprises aconductor arrangement 35 with which the load gate 10 is freely swinging supported on the load carrier 2elongated chassis via a longitudinal beams 3 on the chassis fixed in the conductor arrangementinput support frame generally designated 36 (see Figs. 5 and 6). The support frame 36 is on a guideslidably connected to the two longitudinal beams 3 which form the main part ofthe load carrier's 2 chassis or chassis. Because the support frame 36 is slidable, the load gate 10 canas a unit is displaced along the frame beams 3 and locked in a suitable position on the chassis.
    This makes it possible to easily adjust the length of the cargo space 4. Convenientlythe support frame 36 and thus the load gate 10 are positioned on the chassis by the action ofand actuators such as hydraulically driven power cylinders. In order for the conductor arrangement 35 toform a free-swinging unit where the load gate within a limited area can move in principlefreely or substantially "floating" turn relative to the chassis without coming into contact with the saidchassis, the load gate 10 is provided with a frame generally designated 37 (see Figs. 5 and 6)designed to form an extension of the central main gate section 25 of the load gate downwards. Withthe term "floating" here means that forces appearing in the suspension 20 are not definedpoint of attack and consequently no torques occur either. Frame 37 showsin the form of a downwardly tapered box which is defined on the outside substantially by a bottom 38, two withbottom continuous substantially parallel walls 39 and two with the bottomcontiguous in the direction up to the load gate diverging side pieces 40. In the shownembodiment, flat facing hinge irons 41 are attached to each transitionbetween the converging side pieces 40 and the bottom 38 of the frame. Through the two onhinges 41 located on either side of the longitudinal axis C of the chassisexceeds the width of the chassis 3 or the two frame beams, a first transverse one extendshorizontal axis 42. A second transverse horizontal axis 43 extends in a similar mannerthrough the support frame 36.
    W: Other_Casedocum ents Patent P410- P41001592SEOO 100915 besk.docx1015202530356As best seen in Fig. 5, the two transverse axes 42, 43 are located on eachside and at different levels in height about the main plane of the load gate 10. To assign the load gateFree-swinging properties, the conductor arrangement further comprises a pair of link arms 45, 46which are located on each side of the longitudinal axis C of the forwarder and whose mutual distance fromeach other is larger than the width of the chassis 3 so that they can pivot in substantially vertical planesnext to the chassis. The link arms 45, 46 are at their respective ends, on pins 50, 51,articulated attachment between the hinge irons 41 and the support frame 36, the link points of the linksdefined by said first and second transverse horizontal axes 42, 43. Also at thesepins 50, 51 use spherical joint bearings to allow the link arms 45, 46 to both rotate andtwist in their attachments. A double-acting hydraulic cylinder 60 is connected betweenthe frame 37 of the load gate 10 and the support frame 21 to allow the load gate to move in the vertical directionlifted to an upper working position and lowered to a lower inactive rest position. Fig. 3 is shownthe load gate 10 is adjusted in its active upper working position by means of the hydraulic cylinder 60 andas should appear from a closer study of the figure, the movement of the load gate is limited verticallyupwards, when switching to working position by cooperation between one to the respective link arm 45,46 arranged stop lug 61 which is attached to the support frame 36.
    As best seen in Figures 3 and 4, the double-acting hydraulic cylinder 60, viapins 63, 64, with one end hingedly attached to the lower side edge 38 of the load gate 10 and at itsother end articulated in the support frame 36 and thus also in the chassis 3 of the load carrier 2.
    The pins 63, 64 have spherical bearings to allow the hydraulic cylinder 60 to rotate and rotatethe attachments.Fig. 8 schematically shows the hydraulic circuit used for maneuveringthe load gate 10 up and down and as can be seen here it is double-actingone connection 70 of the hydraulic cylinder 60 and thus also one of its chambers is inconnection with a storage tank, which is only indicated by a dashed contour line in the fi clock.
    The second connection 71 of the hydraulic cylinder 60 and associated second chambers are via a line72 in connection with a pump 73 with variable displacement via a non-return valve 74 and apressure reducing valve 75, said non-return valve may but not necessarily needbe remotely controlled so that the blocking effect can easily be lifted by means of a separate control pressure.
    The pressure reducing valve 75 forms part of a relief circuit with the task of relievingthe pump 73 during the part of the working cycle when the load gate 10 is in its upperoperating position whereby a predetermined working pressure is reached in the hydraulic circuit. Pumps 73other end is connected to the storage tank 76. Thanks to the pump 73 being in directconnection to the hydraulic cylinder 60, the load gate 10 moves to its upper active positionimmediately when starting the loader or forwarder. To the other 60 of the hydraulic cylinder77 unionsThe task of the overflow valve 77 is to take care of the excess hydraulic mediumconnection 71 is an overflow valve via a line 78.
    W: Other_Casedocuments Patent P410- P41001592SE00 100915 besk.docx1015202530357which occurs at an elevated pressure or one at a pressure surge occurring in the system whereinthe hydraulic medium is drained to the storage tank 76.
    If the load gate 10 is affected by an external downward force, it should be appreciated that apressure shocks occur in the second chamber of the hydraulic cylinder 60 Such pressure shocks can occur inin case the load gate 10 is hit by an external force from above as illustrated by the arrow Fy (seealso Fig. 4). Such an external force may be a result of the crane arm 22 during the execution ofa downward movement collides with the upper part of the load gate 10. By choosing the appropriatecharacteristics of the overflow valve 77 with respect to the predetermined pressure atwhich the valve should open for drainage of hydraulic medium to storage tank 76 can the type ofdamage that a collision with the crane arm 22 can result in, is essentially avoided bythe load gate 10 is allowed to swing away in the downward direction. The vertical struts 30 are guided via the load gate 10the force of such a shock from the outer frame section 28 of the central main gate section 25 in lineardirection down to the opposite frame section 29 of the load gate which is located along the bottom inthe load gate and is supported by the powerful frame 37. The load drop can be closestis considered as a linear compressive load, essentially without the occurrence of torque forces.
    To control the free-swinging load gate in a vibration-limiting manner10 turning movements during free swing in one towards the longitudinal axis C of the forwarder, includesthe conductor arrangement a pair of elongate resilient stabilizing rods 90, 91. As best seenof Figs. 3 and 4, the resilient stabilizing struts 90, 91 are located on either side of the longitudinal axis.C and starting from the chassis support frame 36, these are like struts arranged with inclination inangle up to the body 37 of the load gate 10. Each stabilizing rod 90, 91 comprises alower end which on a pin 92 with spherical bearing is hingedly attached to the support frame 36 and an upperend as via a threaded pin 93 with some conductivity through an associated spring 94 andlock nut is fastened in a bracket 96, 97 arranged in the frame 37 of the load gate 10 where the pin isarranged to extend through a hole in the bracket and is locked thereto by co-operation inco-operation with a locking nut 95 and intermediate spring arranged on the pin.
    Fig. 7 shows on a larger scale a cross section through an upper part of a resilientstabilizing struts 90, 91. Each of said stabilizing struts 90, 91 comprises in its upperfacing end of the load gate a housing 100 with a cylindrical bore 101 through whicha rod 102 extends. House 100 has a massive with the house occupied, but not fixedconnected end end means 103 having a central opening 104 through which the rod102 one end extends out of the housing and which end simultaneously forms the above-mentionedthreaded pins 93. The other end of the rod 102 inside the housing 100 is arrangeda first thickened portion 106 wherein a similar second thickened portion 107 is disposed onthe free end of the bar located outside the house. Said thickened parts 106, 107 compriseeach a washer releasably connected to the rod 102. Axial displaceability of the bar 102the housing 100 is limited by the action of a first and a second elastically deformable memberW: 0ther_Casedocuments Patent P410- P41001592SE00 100915 besk.docx1015202530358110, 111 as the enclosing rod is located on a respective side of the end end member103. In the exemplary embodiment described here, the two elastic members 110, 111 are constituted byannular compression springs, but could of course be any suitable oneselastically resilient means, for example packages of disc springs. It should be realized that the resilientthe stabilizing strut 90, 91 offers spring action in opposite axial directions by the action ofsaid respective springs 110, 111 on each side of the end end member 103. Thanks to thatthe lock nut 95 is adjustable on the threaded end 93 of the rod 102 or the pin is facilitatedadjusting and aligning the position and level of the load gate 10 in relation to the load carrier 2chassis.
    The load gate system 10, 20 shown in the drawings is intended to operate onas follows: The force arrow Fy in Fig. 4 illustrates the external force produced in the event of a collisionbetween crane arm 22 and the upper edge 28 of the central load gate 25 during timber handling,for example during vertical lowering of timber loads into the cargo space. The energy fromthe collision is led through the vertically standing struts 30 of the central load gateload-bearing structure and is caught in a resiliently resilient manner bythe guide arrangement 35 of the suspension device 20, the load gate as a whole comingto move downwards in the manner shown in Figs. 4, 5 and 6. Thanks to the fact that both inthe suspension device 20 including the double-acting hydraulic cylinder 60 as the twothe suspension struts 90, 91 arranged at the sides of the load gate offer a resilient effect(the overflow valve or the compression springs) then the energy from the collision willabsorbed in a compliant manner.
    Similarly in the event of a collision that occurs between crane arm 22 and one ofthe side edges of the side gate sections 26, 26 'during timber handling, for example around the crane armis too low when pivoting a load in the horizontal plane towards the load space 4, whichis illustrated by the force arrow Fx in Fig. 4. In this case, the force from the collision is conducted linearly and insubstantially horizontally laterally via the stay 30 of the side gate section 26, 26 'towardsthe central center of the load gate. The load gate 10 as a whole is caught in a resiliently resilient mannerup of the guide arrangement of the suspension device 20, the load gate as a whole partlywill be displaced in its plane perpendicular to the longitudinal axis C of the forwarder. Since the load gate isfree-swinging with the absence of a defined torque point, its pivoting movements willvary depending on the Fx point of attack of the external force on the side gate section 26, 26 ”.
    The invention is not limited to what is described above and what is shown in the drawingsbut can be changed and modified in a number of different ways within the framework of the followingclaimed invention.
    W: Other_Casedocum ents Patent P410- P41001592SE00 100915 besk.docx
    权利要求:
    Claims (1)
    [1]
    10 15 20 25 30 35 1. 9 CLAIM REQUIREMENTS Load gate combination in a truck of the type comprising a wheeled chassis (3), such as a forwarder for collecting and transporting felled tree lengths or the like, and comprising on the one hand a load gate (10) intended to delimit a cargo space (4) arranged in the truck from other units included in the truck such as a crane (22) and driver's cab (11), and a suspension device (20) mounted on the truck chassis (3) pivotally supporting the loading gate (10), characterized by ; that the loading gate (10) is arranged for connection of one end of a resilient member (90, 91) and one end of a conductor arrangement (35), that the suspension device (20) comprises a support frame (36) arranged on the chassis (3) arranged to connect the other end of a resilient member (90, 91) and one end of a guide arrangement (35), that the locking gate (10) is resiliently pivotally suspended on the support frame (36) by a combination of said resilient member (90). , 91) and guide arrangements (35) arranged between the loading gate (10) and the supporting frame (10). Load gate combination according to claim 1, wherein the load gate (10) at the bottom comprises a body (37) which on each side of the longitudinal axis (C) of the truck is provided with a guide point (42) for connecting one end of a link arm (45) included in the guide arrangement (35). , 46) and a pivot point (93) for connecting one end of the resilient member (90, 91), respectively, that the support frame (36) of the suspension device (20) is associated with a pivot point (43) on each side of the longitudinal axis (C) of the truck for connecting a second end of a link arm (45, 46) included in the hinge arrangement (35), and a hinge point (92) for connecting a second end of the resilient member (90, 91), and that the locking gate (10) is resiliently pivotally suspended on the support frame (36) by co-operation between a combination of link arms (45, 46) arranged on both sides of the longitudinal axis (C) in the conductor arrangement (35) and resilient means (90, 91). . Load gate combination according to one of Claims 1 to 2, in which the loading gate (10) is suspended in a free-swinging manner on the support frame (36) by co-operation between the conductor arrangement (35) and the resilient members (90, 91). Load gate combination according to any one of claims 1 to 3, wherein the loading gate (10) comprises a hinge point (63) for connecting a first end of a pressure medium-activated double-acting piston-cylinder means (60); that the support frame of the suspension device (20) W: 0ther_Casedocuments Patent P410- P41001592SE00 100915 besk.docx 10 15 20 25 30 35 10. 11. 10 (36) comprises a hinge point (64) for connecting a second end of a pressure medium actuated double-acting piston-cylinder means (60); and that the load gate is vertically raising and double-acting piston-cylinder means (60) arranged between said articulation points (63, 64). lowerable by the action of a tweck medium-activated load gate combination according to claim 4, wherein the double points (63, 64) of the double-acting piston-cylinder member (60) on the load gate (19) and the support frame (36) are located along a line perpendicular to the center line (C) and which line extends centrally through the load gate 10. Load gate combination according to any one of claims 2 - 5, wherein the articulation points (42, 46) of the link arms (45, 46) on the load gate (10) and the support frame (36) respectively comprise horizontal axes perpendicular to the longitudinal axis of the truck. (C) and extending on either side of the main plane of the load gate. Load gate combination according to claim 6, wherein the horizontal axes (42, 43) extending on either side of the main plane of the load gate (10) are located at different levels in height. Load gate combination according to any one of claims 1 to 6, wherein the resilient means (90, 91) comprise a pair of elongate resilient stabilizing struts located on a respective side of the center line (C) of the truck and which stabilizing struts are arranged to offer spring action in opposite axial directions. Load gate combination according to any one of claims 2 to 8, wherein the guide arrangement (35) extends the link points (42, 43) of the link arrangement (45, 46) of the guide arrangement (35) between the frame (37) and comprises spherical joint layers at least in between the support frame (36). Load gate combination according to claims 4 - 9, wherein one chamber of the double-acting piston-cylinder means (60) is associated with a pressure-limiting means (77) which drains said chamber at pressures exceeding a predetermined value. The load gate combination according to any one of claims 2 to 10, the link arms (45, 46) of the conductor arrangement (35), extending between the frame (37) and the support frame (36), are W: Other_Casedocuments Patent P410- P41001592SEOO 100915 besk.docx 10 15 20 25 30 35 12. 13. 14. 15. 16. 11. arranged to pivot in parallel planes each located next to the chassis (3) - Load gate (10) at a truck of the type comprising a wheeled chassis (3), such as a forwarder for collecting and transporting felled tree lengths or the like, and which load gate is intended to delimit a cargo space (4) arranged in the truck from other units included in the truck such as a crane (22) and driver's cab (11) , characterized in that it is resiliently pivotally suspended on the chassis (3) by cooperation between a combination of resilient means (90, 91) and a guide arrangement (35) wherein the load gate is only allowed to pivot within a limited area on the chassis by the action of said resilient means (90, 91) o ch leader arrangement (35). Load gate according to claim 12, comprising in its lower part a frame (37) on which the load gate (10) is assigned a set of first and second pivot points (42, 43; 92, 93) for connecting one end of a pair in the link arrangement ( 35) included link arms (45, 46) and a pair of resilient members (90, 91) and by the action of which link arms and resilient means the load gate is intended to be supported free-swinging and resilient on the chassis (3). Load gate according to claim 13, wherein the first hinge points (42, 43) on the frame (37) for connecting one end of link arms (45, 46) are arranged in a pair of hinge bars (41) projecting downwards from the frame (37) as located on opposite sides of the body having a distance from each other exceeding the width of the chassis (3). A load gate according to any one of claims 13 to 14, wherein the body (37) comprises a hinge point (63) for connecting a first end of a pressure medium-activated double-acting piston-cylinder member (60). Suspension device (20) for supporting a load gate (10) on a wheeled chassis (3) of a truck such as a forwarder or the like, the load gate being intended to delimit a load space (4) included in the truck from other units included in the truck such as lifting crane (22) and driver's cab (11), characterized in that the suspension device (2) comprises a support frame (36) arranged on the chassis with an associated set of first and second articulation points (42, 43; 92, 93) for connecting one the end of link arms and resilient means (90, 91; 45, 46) forming part of a W: Other_Casedocuments Patent P410- P41001592SE00 100915 besk.docx 10 15 20 25 17. 18. 19. 12 conductor arrangement (35) with which load gate can be supported resiliently and free-swinging on the chassis (3). Suspension device (20) according to claim 14, wherein the first pivot points (42, 43 for connecting the respective ends of the link arms (45, 46) have a distance from each other across the longitudinal axis (C) of the truck which is greater than the width of the chassis (3). such as a forwarder for collecting and transporting felled tree lengths or the like and of the kind comprising a wheeled chassis (3), and comprising on the one hand a load gate (10) intended to delimit a cargo space (4) arranged in the truck from other units included in the truck such as a crane (22) and a cab (11), and a suspension device (20) mounted on the truck chassis (3) pivotally supporting the load gate (10), characterized in that the load gate (10) at the bottom comprises a body (37); that the suspension device (20) comprises a support frame (36) arranged on the chassis (3) and that the load gate (10) is resiliently pivotally suspended on the support frame (36) by co-operation between a conductor arrangement (35) comprising a pair of link arms (45, 46) and resilient members (90, 91). Truck according to claim 16, comprising pressure medium-activated double-acting piston-cylinder means (60) which is operative between the body (37) and the support frame (36) and by the action of which the load gate can be vertically raised and lowered. W: Other_Casedocuments Patent P410- P41001592SEOO 100915 besk.docx
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    SE426376B|1983-01-17|DEVICE ON TRUCKS
    同族专利:
    公开号 | 公开日
    WO2012039663A1|2012-03-29|
    EP2619034A4|2018-01-10|
    EP2619034A1|2013-07-31|
    EP2619034B1|2020-01-08|
    SE535196C2|2012-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE327631B|1965-09-20|1970-08-24|Kockums Mekaniska Verkstads Ab|
    SE370360B|1973-02-08|1974-10-14|N Johansson|
    SU1652131A1|1989-02-24|1991-05-30|Карельский научно-исследовательский институт лесной промышленности|Long load transportation vehicle|
    DE19822809C2|1998-05-20|2002-09-12|Hohenloher Spezial Maschb Gmbh|Articulated truck|
    DE19911872C2|1999-03-17|2001-05-31|Hohenloher Spezial Maschb Gmbh|Forwarder to the back of short wood and long wood|
    US6468008B2|1999-09-30|2002-10-22|Great Lakes Manufacturing, Inc.|Apparatus for constraining the position of logs on a truck or trailer|
    SE530177C2|2007-05-28|2008-03-18|Peter Norman Med Nxt Concept F|Front wall for truck used to transport e.g. timber, has reduced weight and absorbs energy from impacting load more effectively|
    US7828328B2|2008-10-29|2010-11-09|Caterpillar Forest Products Inc|System and method for a forwarder headboard|
    US8191928B2|2008-10-29|2012-06-05|Caterpillar Forest Products Inc.|Stabilizing assembly for a forwarder headboard and method|RU175837U1|2017-02-21|2017-12-21|Общество с ограниченной ответственностью "Камаз - Лидер"|PROTECTIVE PROTECTION OF THE VEHICLE CAB|
    EP3406485B1|2017-05-22|2019-12-18|Deere & Company|Pivot joint and head board assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1050982A|SE535196C2|2010-09-21|2010-09-21|Cargo gate system for cargo vehicles and suspension device and cargo gate for such a system|SE1050982A| SE535196C2|2010-09-21|2010-09-21|Cargo gate system for cargo vehicles and suspension device and cargo gate for such a system|
    PCT/SE2011/051116| WO2012039663A1|2010-09-21|2011-09-16|Load gate system for a vehicle, and a suspension arrangement and load gate for such a system|
    EP11827050.3A| EP2619034B1|2010-09-21|2011-09-16|Load gate system for a vehicle, and a suspension arrangement and load gate for such a system|
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