Suspension transferring machine and the method for trees handling
Technical field
The present invention relates to forest equipment field, especially a kind of suspension transferring machine and the method for trees handling.
Background technology
During tree transplanting, the tree that the root dug out is surrounded by soil ball needs movement;Chinese Patent Application No.:
The utility model of CN201320778931.5 discloses a kind of light rubber track formula agricultural suspension transferring machine, includes double-deck truss-like
Frame, double-deck truss open frame is provided with rack chassis, and Driving control mechanism, loop wheel machine, compartment, rubber are provided with rack chassis
Crawler type walking mechanism and dozer assembly, Driving control mechanism are located at the front of loop wheel machine, and compartment is located at the rear of loop wheel machine, bulldozes
Shovel is located on rack chassis positioned at the underface of compartment rearward end, rubber caterpillar type walking mechanism, and installed in double-deck truss-like
On the bottom truss of frame, double-deck truss open frame is made up of bottom truss, upper strata truss and support column, support frame, and it is used
Welding procedure connection is constituted, the draw bail of load-bearing and ground-engaging element based on bottom truss, to walking mechanism and upper strata purlin
Frame is fixed connection, and upper strata truss undertakes to be driven control unit, work tool and be fixedly connected for power part, department.Tradition
Suspension transferring machine handling tree when, there is tree trunk and be also easy to produce the deficiency for rocking damage;Therefore, tree trunk is stable not when designing a kind of handling tree
The method of the suspension transferring machine and trees handling of damage is also easy to produce, as problem demanding prompt solution.
The content of the invention
The invention aims to overcome during current suspension transferring machine handling tree, there is tree trunk and be also easy to produce and rock damage not
Foot, there is provided a kind of method that tree trunk stabilization is not likely to produce the suspension transferring machine and trees handling of damage during handling tree.
Concrete technical scheme of the invention is:
A kind of suspension transferring machine, including:The rack chassis of crawler type walking mechanism are provided with, the loop wheel machine on rack chassis;Described
Suspension transferring machine also includes:On rack chassis and be provided with the soil ball on rear side of crawler type walking mechanism folder shovel folder shovel adjustment drive
Dynamic device.When suspension transferring machine is used, folder shovel adjustment drive device drives soil ball folder shovel to clamp soil ball, and it is steady that loop wheel machine auxiliary hangs tree trunk
It is fixed;Tree trunk stabilization is not likely to produce damage during the suspension transferring machine handling tree.
Preferably, described soil ball folder shovel includes:Two curved side clamping plates of lateral symmetry setting, two one-to-one corresponding
Located at two arc-shaped shoveling plates of curved side clamping plate lower end relative inner, two rear ends correspond with two curved side clamping plate upper ends
The longitudinal rod of connection.Soil ball folder shovel is simple and practical;Two longitudinal rod relative motions of arc-shaped shoveling plate soil ball folder shovel, two
Individual arc-shaped shoveling plate is shoveled into soil ball downside and two curved side clamping plates clamp soil ball gusset, can firmly clamp soil ball handling tree and set
Bar stabilization is not likely to produce damage.
Preferably, described folder shovel adjustment drive device includes:Two longitudinal slide rails, front end is provided with longitudinal screw and leads to
Longitudinal sliding sash that longitudinal slide rail is connected with rack chassis is crossed, the longitudinal silk for being pivotally connected with rack chassis and being threadedly coupled with longitudinal screw
Thick stick, the zigzag tread patterns motor being connected with rack chassis, the installing frame being connected with longitudinal sliding sash rear end, two correspond located at peace
Frame up the vertical lines guide rail of relative two inner side, lower end be provided with transverse slat and two side ends with two sliding blocks of vertical lines guide rail one by one
The vertical slide of correspondence connection, the vertical nut being connected with vertical slide is pivotally connected with installing frame and is connected with vertical nut thread
Vertical leading screw, the vertical drive motor being connected with installing frame upper end, the double output shaft motor being connected with transverse slat upper end respectively and
Two horizontal line slideways, the horizontal leading screw that two one end connect one to one with the output shaft of double output shaft motor;Drive longitudinal direction
The output shaft of dynamic motor is connected with the front end of longitudinal leadscrew;The output shaft of vertical drive motor is connected with the upper end of vertical leading screw;
The hand of spiral of two horizontal leading screws is opposite;Two longitudinal rods are provided with the horizontal stroke for being corresponded with two horizontal leading screws and being threadedly coupled
It is connected with the sliding block of horizontal line slideway to screw, and longitudinal rod.It is accurate fixed that folder shovel adjustment drive device can make soil ball press from both sides shovel
Position and two hands of spiral of horizontal leading screw conversely, two longitudinal rod relative motions can be made, two arc-shaped shoveling plates are shoveled into soil ball
Downside and two curved side clamping plates clamp soil ball and effectively press from both sides shovel soil ball and carry out handling tree.
Preferably, described loop wheel machine includes:It is provided with rotating disk and the tumbler being connected with rack chassis, lower end and rotating disk
The support column of connection, the arm that one end is hinged with support column upper end, positioned at the suspension hook of the arm other end, is provided with hoist cable and and arm
The hoist engine of connection, the oil cylinder being hinged with rotating disk, piston rod and the arm of oil cylinder are hinged.Loop wheel machine is simple and practical.
Preferably, one end of described arm is provided with arc treedozer plate and the cushion pad on the inside of arc treedozer plate.
During handling tree, the thrust of arm is borrowed, arc treedozer plate contact trees simultaneously extrude trees, tree is pushed into heeling condition, make two
Arc-shaped shoveling plate can be shoveled into soil ball downside easily, and cushion pad can effectively prevent from scratching trees during treedozer.
A kind of method of the trees handling of suspension transferring machine, described suspension transferring machine includes:It is provided with the frame of crawler type walking mechanism
Chassis, the loop wheel machine on rack chassis, on rack chassis and be provided with the soil ball on rear side of crawler type walking mechanism folder
The folder shovel adjustment drive device of shovel;Soil ball folder shovel includes:Two curved side clamping plates of lateral symmetry setting, two one-to-one corresponding set
In two arc-shaped shoveling plates of curved side clamping plate lower end relative inner, two rear ends correspond with two curved side clamping plate upper ends and connect
The longitudinal rod for connecing;Folder shovel adjustment drive device includes:Two longitudinal slide rails, front end is provided with longitudinal screw and by longitudinal slide rail
The longitudinal sliding sash being connected with rack chassis, the longitudinal leadscrew for being pivotally connected with rack chassis and being threadedly coupled with longitudinal screw, with frame
The zigzag tread patterns motor of chassis connection, the installing frame being connected with longitudinal sliding sash rear end, two one-to-one corresponding are relative located at installing frame
The vertical lines guide rail of two inner sides, lower end is provided with transverse slat and two side ends connect one to one with the sliding block of two vertical lines guide rails
Vertical slide, the vertical nut being connected with vertical slide, the vertical silk for being pivotally connected with installing frame and being connected with vertical nut thread
Thick stick, the vertical drive motor being connected with installing frame upper end, the double output shaft motor being connected with transverse slat upper end respectively and two transverse directions
Line slideway, the horizontal leading screw that two one end connect one to one with the output shaft of double output shaft motor;Zigzag tread patterns motor
Output shaft is connected with the front end of longitudinal leadscrew;The output shaft of vertical drive motor is connected with the upper end of vertical leading screw;Two transverse directions
The hand of spiral of leading screw is opposite;Two longitudinal rods are provided with the horizontal screw for being corresponded with two horizontal leading screws and being threadedly coupled,
And longitudinal rod is connected with the sliding block of horizontal line slideway;Loop wheel machine includes:It is provided with rotating disk and the rotation dress being connected with rack chassis
Put, the support column that lower end is connected with rotating disk, the arm that one end is hinged with support column upper end, positioned at the suspension hook of the arm other end, if
There are hoist cable and the hoist engine being connected with arm, the oil cylinder being hinged with rotating disk, piston rod and the arm of oil cylinder are hinged;One end of arm
It is provided with arc treedozer plate and the cushion pad on the inside of arc treedozer plate;(1)Shovel handling tree is pressed from both sides with soil ball:Folder shovel adjustment drives dress
The vertical leading screw of vertical drive motor put is rotated, and drives the height and position of vertical slide vertical motion adjustment soil ball folder shovel;
Zigzag tread patterns motor drives longitudinal leadscrew to rotate, and drives the lengthwise position of longitudinal sliding sash lengthwise movement adjustment soil ball folder shovel;Lose-lose
Shaft motor drives two horizontal leading screws to rotate, and drives two longitudinal rod relative motions of soil ball folder shovel, two arc-shaped shoveling plates
Shovel into soil ball downside and two curved side clamping plates clamp soil ball gusset;The vertical vertical leading screw of drive motor is rotated backward, band
Move vertical slide and move rising soil ball folder shovel upwards;Zigzag tread patterns motor drives longitudinal leadscrew to rotate backward, and drives longitudinal sliding sash
Counter motion resets, and soil ball folder shovel clamps soil ball carries out handling tree;(2)With loop wheel machine handling tree:Hung with the suspender hung on suspension hook
Firmly tree trunk, under hoist engine effect, suspension hook hangs tree trunk and rises through suspender, carries out handling tree;(3)Shovel handling tree is pressed from both sides with soil ball,
And aid in stabilization tree trunk with loop wheel machine:The vertical leading screw of vertical drive motor of folder shovel adjustment drive device is rotated, and is driven vertical
The height and position of slide vertical motion adjustment soil ball folder shovel;Zigzag tread patterns motor drives longitudinal leadscrew to rotate, and drives longitudinal sliding sash
The lengthwise position of lengthwise movement adjustment soil ball folder shovel;Double output shaft motor drives two horizontal leading screws to rotate, and drives soil ball folder shovel
Two longitudinal rod relative motions, two arc-shaped shoveling plates are shoveled into soil ball downside and two curved side clamping plates clamp soil ball gusset;
The vertical vertical leading screw of drive motor is rotated backward, and drives vertical slide to move rising soil ball folder shovel upwards;Zigzag tread patterns horse
Up to driving longitudinal leadscrew to rotate backward, the counter motion of longitudinal sliding sash is driven to reset;Made with the suspender auxiliary pulling hung on suspension hook
Handling tree is carried out after tree trunk stabilization;(4)Shovel is pressed from both sides with soil ball and loop wheel machine coordinates handling tree:Tree is hung with the suspender hung on suspension hook
Bar, under hoist engine effect, suspension hook hangs tree trunk and rises through suspender, and the piston rod of oil cylinder drives arm to rise, tumbler band
Dynamic rotating disk, arm are rotated, and soil ball is moved at soil ball folder shovel;Double output shaft motor drives two horizontal leading screws to rotate, and drives
Two longitudinal rod relative motions of soil ball folder shovel, two arc-shaped shoveling plates are shoveled into soil ball downside and two curved side clamping plates clamp soil
Ball gusset carries out handling tree.The method of the trees handling of suspension transferring machine can meet handling tree needs;Shovel handling tree is pressed from both sides with soil ball and use
Loop wheel machine aids in stabilization tree trunk and presss from both sides shovel and loop wheel machine cooperation handling tree for the handling tree of larger tree with soil ball.
Compared with prior art, the beneficial effects of the invention are as follows:Tree trunk stabilization is not likely to produce damage during the suspension transferring machine handling tree
Wound.Soil ball folder shovel is simple and practical;Two longitudinal rod relative motions of arc-shaped shoveling plate soil ball folder shovel, two arc-shaped shoveling plate shovels
Enter soil ball downside and two curved side clamping plates clamp soil ball gusset, can firmly clamp soil ball handling tree and tree trunk stabilization is difficult to produce
It is raw to damage.Folder shovel adjustment drive device can press from both sides soil ball, and shovel is accurately positioned and two hands of spiral of horizontal leading screw are conversely, can make
Two longitudinal rod relative motions, two arc-shaped shoveling plates are shoveled to be clamped soil ball and effectively presss from both sides shovel into soil ball downside and two curved side clamping plates
Soil ball carries out handling tree.Loop wheel machine is simple and practical.One end of arm is provided with arc treedozer plate and located at arc treedozer plate inner side
Cushion pad, during handling tree, borrow arm thrust, arc treedozer plate contact trees simultaneously extrude trees, tree is pushed into skewed
State, enables two arc-shaped shoveling plates to shovel easily into soil ball downside, and cushion pad can effectively prevent from scratching trees during treedozer.Suspension transferring machine
The method of trees handling can meet handling tree needs;Shovel handling tree is pressed from both sides with soil ball and aid in stabilization tree trunk with loop wheel machine and pressed from both sides with soil ball
Shovel and loop wheel machine coordinate handling tree for the handling tree of larger tree.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the invention;
Fig. 2 is the top view of Fig. 1.
In figure:Rack chassis 1, crawler type walking mechanism 11, loop wheel machine 2, rotating disk 21, tumbler 22, support column 23, arm
24th, suspension hook 25, hoist cable 26, hoist engine 27, oil cylinder 28, arc treedozer plate 29, cushion pad 210, soil ball folder shovel 3, curved side clamping plate
31st, arc-shaped shoveling plate 32, longitudinal rod 33, folder shovel adjustment drive device 4, longitudinal slide rail 41, longitudinal sliding sash 42, longitudinal leadscrew 43,
Zigzag tread patterns motor 44, installing frame 45, vertical lines guide rail 46, transverse slat 47, vertical slide 48, vertical nut 49, vertical leading screw
410th, vertical drive motor 411, double output shaft motor 412, horizontal line slideway 413, horizontal leading screw 414, bracing piece 415.
Specific embodiment
It is shown below in conjunction with the accompanying drawings that the present invention is described further.
As shown in accompanying drawing 1, accompanying drawing 2:A kind of suspension transferring machine, including:The rack chassis 1 of crawler type walking mechanism 11 are provided with, if
In the loop wheel machine 2 on rack chassis 1, on rack chassis 1 and the soil ball folder shovel 3 positioned at the rear side of crawler type walking mechanism 11 is provided with
Folder shovel adjustment drive device 4.
Described soil ball folder shovel 3 includes:Two curved side clamping plates 31 of lateral symmetry setting, two correspond located at two
The arc-shaped shoveling plate 32 of the lower end relative inner of individual curved side clamping plate 31, two rear ends correspond with two upper ends of curved side clamping plate 31
The longitudinal rod 33 of welding.
Described folder shovel adjustment drive device 4 includes:Two longitudinal slide rails 41, front end is provided with longitudinal screw(It is in accompanying drawing
Draw)And the longitudinal sliding sash 42 being connected with rack chassis 1 by longitudinal slide rail 41, with rack chassis 1 by bearing hinge joint and with
The longitudinal leadscrew 43 of longitudinal screw threaded connection, the zigzag tread patterns motor 44 with the mode connects for screw of rack chassis 1, with longitudinal sliding sash 42
The installing frame 45 of rear end mode connects for screw, two vertical lines guide rails 46 corresponded located at relative two inner side of installing frame 45, under
End is provided with transverse slat 47 and two side ends correspond the vertical slide 48 of mode connects for screw with two sliding blocks of vertical lines guide rail 46, with
The vertical nut 49 of the vertical mode connects for screw of slide 48, is threadedly coupled with installing frame 45 by bearing hinge joint and with vertical nut 49
Vertical leading screw 410, the vertical drive motor 411 with the upper end mode connects for screw of installing frame 45, respectively with the upper end mode connects for screw of transverse slat 47
Double output shaft motor 412 and two horizontal line slideways 413, the output shaft of two one end and double output shaft motor 412 is one by one
Corresponding keys connection horizontal leading screw 414, two ends respectively with transverse slat 47 and the bracing piece 415 of the mode connects for screw of vertical slide 48;Longitudinal direction
The output shaft of drive motor 44 is bonded with the front end of longitudinal leadscrew 43 and connects;The output shaft and vertical leading screw of vertical drive motor 411
410 upper end is bonded and connects;The hand of spiral of two horizontal leading screws 414 is opposite;Two longitudinal rods 33 are provided with and two transverse wires
Thick stick 414 corresponds the horizontal screw of threaded connection, and longitudinal rod 33 and horizontal line slideway 413 sliding block mode connects for screw.
Described loop wheel machine 2 includes:Be provided with rotating disk 21 and with the tumbler 22 of the mode connects for screw of rack chassis 1, lower end with turn
The support column 23 of the mode connects for screw of disk 21, the arm 24 that one end is hinged with the upper end of support column 23, positioned at the suspension hook of the other end of arm 24
25, be provided with hoist cable 26 and with the hoist engine 27 of the mode connects for screw of arm 24, the oil cylinder 28 being hinged with rotating disk 21, the piston rod of oil cylinder 28
It is hinged with arm 24.
One end of described arm 24 is provided with arc treedozer plate 29 and the cushion pad 210 located at the inner side of arc treedozer plate 29.
A kind of method of the trees handling of suspension transferring machine, described suspension transferring machine includes:It is provided with the machine of crawler type walking mechanism 11
Frame chassis 1, the loop wheel machine 2 on rack chassis 1 on rack chassis 1 and is provided with positioned at the rear side of crawler type walking mechanism 11
Soil ball folder shovel 3 folder shovel adjustment drive device 4;Soil ball folder shovel 3 includes:Two curved side clamping plates 31 of lateral symmetry setting,
Two correspond located at two arc-shaped shoveling plates 32 of the lower end relative inner of curved side clamping plate 31, two rear ends and two curved sides
The upper end of clamping plate 31 corresponds the longitudinal rod 33 of welding;Folder shovel adjustment drive device 4 includes:Two longitudinal slide rails 41, front end
It is provided with longitudinal screw(It is to draw in accompanying drawing)And the longitudinal sliding sash 42 being connected with rack chassis 1 by longitudinal slide rail 41, with frame
Chassis 1 passes through bearing hinge joint and the longitudinal leadscrew 43 being threadedly coupled with longitudinal screw, and the longitudinal direction with the mode connects for screw of rack chassis 1 is driven
Dynamic motor 44, the installing frame 45 with the rear end mode connects for screw of longitudinal sliding sash 42, two correspond in installing frame 45 relative two
The vertical lines guide rail 46 of side, lower end is provided with transverse slat 47 and two side ends correspond spiral shell with two sliding blocks of vertical lines guide rail 46
Follow closely the vertical slide 48 of connection, the vertical nut 49 with the mode connects for screw of vertical slide 48, with installing frame 45 by bearing hinge joint and
The vertical leading screw 410 being threadedly coupled with vertical nut 49, the vertical drive motor 411 with the upper end mode connects for screw of installing frame 45, point
Not with the double output shaft motor 412 of the upper end mode connects for screw of transverse slat 47 and two horizontal line slideways 413, two one end and dual output
The output shaft of axle motor 412 corresponds the horizontal leading screw 414 for being bonded and connecing;The output shaft and longitudinal leadscrew of zigzag tread patterns motor 44
43 front end is bonded and connects;The output shaft of vertical drive motor 411 is bonded with the upper end of vertical leading screw 410 and connects;Two horizontal leading screws
414 hand of spiral is opposite;Two longitudinal rods 33 are provided with the horizontal spiral shell for being corresponded with two horizontal leading screws 414 and being threadedly coupled
Hole, and longitudinal rod 33 and horizontal line slideway 413 sliding block mode connects for screw;Loop wheel machine 2 includes:It is provided with rotating disk 21 and and frame ground
The support column 23 of the tumbler 22 of the mode connects for screw of disk 1, lower end and the mode connects for screw of rotating disk 21, one end is hinged with the upper end of support column 23
Arm 24, positioned at the suspension hook 25 of the other end of arm 24, be provided with hoist cable 26 and with the hoist engine 27 of the mode connects for screw of arm 24, with turn
The oil cylinder 28 that disk 21 is hinged, piston rod and the arm 24 of oil cylinder 28 are hinged;One end of arm 24 is provided with arc treedozer plate 29 and sets
In the cushion pad 210 of the inner side of arc treedozer plate 29;(1)3 handling trees of shovel are pressed from both sides with soil ball:The vertical drive of folder shovel adjustment drive device 4
Dynamic motor 411 drives vertical leading screw 410 to rotate, and drives the height and position of the vertical vertical motion of slide 48 adjustment soil ball folder shovel 3;It is vertical
Drive longitudinal leadscrew 43 to rotate to drive motor 44, drive the lengthwise position of the longitudinal lengthwise movement of sliding sash 42 adjustment soil ball folder shovel 3;
Double output shaft motor 412 drives two horizontal leading screws 414 to rotate, and drives two longitudinal rods 33 relative motion of soil ball folder shovel 3,
Two arc-shaped shoveling plates 32 are shoveled into soil ball downside and two curved side clamping plates 31 clamp soil ball gusset;Vertical drive motor 411 drives
Vertical leading screw 410 is rotated backward, and motion raises soil ball folder shovel 3 upwards to drive vertical slide 48;Zigzag tread patterns motor 44 drives vertical
Rotated backward to leading screw 43, drive the counter motion of longitudinal sliding sash 42 to reset, soil ball folder shovel 3 clamps soil ball carries out handling tree;(2)With
The handling tree of loop wheel machine 2:Tree trunk is hung with the suspender hung on suspension hook 25, under the effect of hoist engine 27, suspension hook 25 hangs tree through suspender
Bar rises, and carries out handling tree;(3)3 handling trees of shovel are pressed from both sides with soil ball, and stabilization tree trunk is aided in loop wheel machine 2:Folder shovel adjustment drive device
4 vertical drive motor 411 drives vertical leading screw 410 to rotate, and drives the height of the vertical vertical motion of slide 48 adjustment soil ball folder shovel 3
Degree position;Zigzag tread patterns motor 44 drives longitudinal leadscrew 43 to rotate, and drives the longitudinal lengthwise movement of sliding sash 42 adjustment soil ball folder shovel 3
Lengthwise position;Double output shaft motor 412 drives two horizontal leading screws 414 to rotate, and drives two longitudinal rods 33 of soil ball folder shovel 3
Relative motion, two arc-shaped shoveling plates 32 are shoveled into soil ball downside and two curved side clamping plates 31 clamp soil ball gusset;It is vertical to drive horse
Vertical leading screw 410 is driven to rotate backward up to 411, motion raises soil ball folder shovel 3 upwards to drive vertical slide 48;Zigzag tread patterns motor
44 driving longitudinal leadscrews 43 are rotated backward, and drive the counter motion of longitudinal sliding sash 42 to reset;Aided in the suspender hung on suspension hook 25
Pulling carries out handling tree after making tree trunk stabilization;(4)Shovel 3 is pressed from both sides with soil ball and loop wheel machine 2 coordinates handling tree:With hanging over hanging on suspension hook 25
Tool hangs tree trunk, and under the effect of hoist engine 27, suspension hook 25 hangs tree trunk and rises through suspender, and the piston rod of oil cylinder 28 drives arm 24
Rise, tumbler 22 drives rotating disk 21, arm 24 to rotate, soil ball is moved at soil ball folder shovel 3;Double output shaft motor 412
Drive two horizontal leading screws 414 to rotate, drive two longitudinal rods 33 relative motion of soil ball folder shovel 3, two arc-shaped shoveling plates 32
Shovel into soil ball downside and two curved side clamping plates 31 clamp soil ball gusset and carry out handling tree.
The beneficial effects of the invention are as follows:Tree trunk stabilization is not likely to produce damage during the suspension transferring machine handling tree.Soil ball folder shovel structure
It is simple and practical;Two longitudinal rod relative motions of arc-shaped shoveling plate soil ball folder shovel, two arc-shaped shoveling plates are shoveled into soil ball downside and two
Individual curved side clamping plate clamps soil ball gusset, can firmly clamp soil ball handling tree and tree trunk stabilization is not likely to produce damage.Folder shovel is adjusted
Whole drive device can press from both sides soil ball, and shovel is accurately positioned and two hands of spiral of horizontal leading screw are conversely, two longitudinal rod phases can be made
To motion, two arc-shaped shoveling plates to shovel clamp soil ball into soil ball downside and two curved side clamping plates and effectively press from both sides shovel soil ball carries out handling
Tree.Loop wheel machine is simple and practical.One end of arm is provided with arc treedozer plate and the cushion pad on the inside of arc treedozer plate, handling
During tree, the thrust of arm is borrowed, arc treedozer plate contact trees simultaneously extrude trees, tree is pushed into heeling condition, make two arcs
Shovel board can be shoveled into soil ball downside easily, and cushion pad can effectively prevent from scratching trees during treedozer.The side of the trees handling of suspension transferring machine
Method can meet handling tree needs;Shovel handling tree is pressed from both sides with soil ball and aid in stabilization tree trunk with loop wheel machine and coordinated with soil ball folder shovel and loop wheel machine
Handling tree of the handling tree for larger tree.
The present invention can change into that various ways are apparent to one skilled in the art, and such change is not considered as
Depart from the scope of the present invention.All such technical staff to the field obviously change, and are included within this right
It is required that within the scope of.