JP2005212783A - Operation part structure for working vehicle - Google Patents

Operation part structure for working vehicle Download PDF

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JP2005212783A
JP2005212783A JP2005079409A JP2005079409A JP2005212783A JP 2005212783 A JP2005212783 A JP 2005212783A JP 2005079409 A JP2005079409 A JP 2005079409A JP 2005079409 A JP2005079409 A JP 2005079409A JP 2005212783 A JP2005212783 A JP 2005212783A
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frame
vehicle body
pair
operation part
frames
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Japanese (ja)
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Norimi Nakamura
法身 中村
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Kubota Corp
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Kubota Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To guide air with as less dust as possible to an air cleaner in an operation part structure for a working vehicle provided with left and right front wheels and left and right rear wheels and provided with an operation part between the front wheels and the rear wheels. <P>SOLUTION: The air cleaner 70 of an engine is provided near a rear side of the operation part 7 at a lateral side of the vehicle body. A suction duct 72 communicated with the air cleaner 70 is upwardly extended to the lateral outside of a seat 5 of the operation part 7. A suction hole 74 for guiding air to the suction duct 72 is provided at an upper end side of the suction duct 72 and at the lateral outside of the seat 5 of the operation part 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、作業車の運転部構造に関する。   The present invention relates to a driving unit structure of a work vehicle.

特開2001−180536号公報JP 2001-180536 A

本発明の第1特徴は、左右の前輪及び左右の後輪を備え、前輪と後輪との間に運転部を備えた作業車の運転部構造において次のように構成することにある。
エンジンのエヤークリーナを車体横側の運転部の後側近くに備える。エヤークリーナに連通する吸気ダクトを、運転部の座席の横外側を上方に延出する。吸気ダクトに空気を案内する吸気孔を、吸気ダクトの上端側で運転部の座席の横外側に備える。
A first feature of the present invention resides in the following configuration in a driving part structure of a work vehicle including left and right front wheels and left and right rear wheels, and a driving part between the front wheels and the rear wheels.
An engine air cleaner is provided near the rear side of the driving part on the side of the vehicle body. An intake duct that communicates with the air cleaner extends upward on the lateral side of the seat of the driver. An air intake hole for guiding air to the air intake duct is provided on the lateral outer side of the seat of the driving unit on the upper end side of the air intake duct.

図1、図2、図3に示すように、左右一対の操向自在なタイヤ前輪1、左右一対のタイヤ後輪2を備え、前後輪間に前後輪1,2を駆動するエンジン3を搭載した車体フレーム4の前部に、座席5、日除け6を備えた運転部7を設け、車体フレーム4の後部に、荷台8を荷台後部に位置する車体横向きの軸芯まわりでダンプシリンダ9によって上下に揺動操作するように設けて、作業車を構成してある。   As shown in FIGS. 1, 2, and 3, a pair of left and right steerable tire front wheels 1 and a pair of left and right tire rear wheels 2 are provided, and an engine 3 that drives the front and rear wheels 1 and 2 is mounted between the front and rear wheels. A driving unit 7 having a seat 5 and an awning 6 is provided at the front of the body frame 4, and a loading cylinder 8 is arranged at the rear of the body frame 4 by a dump cylinder 9 around a lateral axis of the vehicle body located at the rear of the loading platform. The work vehicle is configured so as to be swingable.

車体フレーム4は、図4、図5、図6などに示す如く構成してある。
すなわち、左右一対の角鋼管材で成る車体メインフレーム11、左右一対の車体メインフレーム11の前端部どうしを連結している前連結フレーム12、左右一対の車体メインフレーム11の中間部どうしを連結している中連結フレーム13、左右一対の車体メインフレーム11の後端部どうしを連結している後連結フレーム14、左右一対の車体メインフレーム11それぞれの前方側部分11aよりも高レベルに位置している後方側部分11bの前端側どうしにわたって連結しているエンジン搭載フレーム15、このエンジン搭載フレーム15と後連結フレーム14にわたって連結している左右一対のミッション搭載フレーム15a、左右一対の車体メインフレーム11の前記後方側部分11bの前端部どうしを連結する連結フレームに兼用してある支持フレーム16、左右一対の車体メインフレーム11の後方側部分11bでの両横外側方に各別に位置している左右一対の車体上下向きの縦フレーム21を備えた運転部フレーム20、この運転部フレーム20の前端側を左右一対の車体メインフレーム11の前方側部分11aに連結するフレームに兼用してあるフェンダー支持フレーム30、運転部フレーム20の前端側を左右一対の車体メインフレーム11の前方側部分11aに各別に連結している左右一対の連結フレーム18、フェンダー支持フレーム30の両横端部に設けたサスペンション支持フレーム40などを備えて構成してある。
The vehicle body frame 4 is configured as shown in FIG. 4, FIG. 5, FIG.
That is, the vehicle body main frame 11 made of a pair of left and right square steel pipe members, the front connection frame 12 connecting the front end portions of the pair of left and right vehicle body main frames 11, and the intermediate portions of the pair of left and right vehicle body main frames 11 are connected. The middle connecting frame 13, the rear connecting frame 14 connecting the rear end portions of the pair of left and right vehicle body main frames 11, and the front side portion 11 a of each of the pair of left and right vehicle body main frames 11 are positioned at a higher level. The engine mounting frame 15 connected across the front end sides of the rear side portion 11b, the pair of left and right transmission mounting frames 15a connected across the engine mounting frame 15 and the rear connection frame 14, and the pair of left and right vehicle body main frames 11 described above. Also serves as a connecting frame that connects the front end portions of the rear portion 11b. A support frame 16, a driving part frame 20 having a pair of left and right vehicle body vertical frames 21 positioned on both lateral outer sides of the rear side portion 11 b of the pair of left and right vehicle body main frames 11, A fender support frame 30 that also serves as a frame that connects the front end side of the driving unit frame 20 to the front side portion 11a of the pair of left and right vehicle body main frames 11, and the front end side of the driving unit frame 20 serves as the pair of left and right vehicle body main frames 11. A pair of left and right connecting frames 18 respectively connected to the front part 11a of the first and second suspension support frames 40 provided at both lateral ends of the fender support frame 30 are provided.

支持フレーム16は、両端側が車体前後向きになり、中間部が車体横向きになる屈曲形状に成形した丸鋼管材で構成してあり、左右一対の車体メインフレーム11の後方側部分11bの前端部どうしにわたって連結しているとともに車体横方向に沿っている横向き部分16a、及び、この横向き部分16aの両端部から車体後方向きに延出している前後向き部分16bを備えている。そして、この支持フレーム16は、運転部7の床50より高い配置レベルに位置する配置にして車体メインフレーム11に支持させてある。   The support frame 16 is formed of a round steel pipe formed in a bent shape in which both end sides are oriented in the longitudinal direction of the vehicle body, and an intermediate portion thereof is in the lateral direction of the vehicle body. And a laterally extending portion 16a extending in the lateral direction of the vehicle body, and a longitudinally facing portion 16b extending from both ends of the laterally facing portion 16a toward the rear of the vehicle body. The support frame 16 is supported on the vehicle body main frame 11 in an arrangement located at an arrangement level higher than the floor 50 of the driving unit 7.

運転部フレーム20は、左右一対の車体メインフレーム11の両横外側で、車体メインフレーム11の後方側部分11bから車体横外側方に向かって延出している丸鋼管材で成る支持杆51の延出端部と、支持フレーム16の前後向き部分16bの後端部とに中間部が連結し、エンジン搭載フレーム15の横端部から車体横外側方に向かって延出している支持杆52の延出端部に下端部が連結している丸鋼管材で成る縦フレーム21、この左右一対の縦フレーム21の上端部どうしにわたって連結している車体横向きの丸鋼管材で成る後横フレーム22、左右一対の車体メインフレーム11の両横外側で、縦フレーム21の下端部に後端部が連結している車体前後向きの丸鋼管材で成る前後フレーム23、この左右一対の前後フレーム23の前端部どうしにわたって連結している車体横向きの丸鋼管材で成る前横フレーム24、左右一対の前後フレーム23の前端側どうしを連結しているとともに左右一対の連結フレーム18が連結している車体横向きの丸鋼管材で成る連結フレーム25を備えて構成してある。左右一対の前後フレーム23のそれぞれには、縦フレーム21に後端部が連結しているとともに車体前後方向にほぼ水平に沿っている床フレーム部23a、及び、この床フレーム部23aの前端部から車体上方向きに、上端側ほど車体前方側に位置した状態で延出していて前上がり傾斜の姿勢になっている前壁フレーム部23bを備えて構成してある。   The driving unit frame 20 is an extension of a support rod 51 made of a round steel pipe material that extends from the rear side portion 11b of the vehicle body main frame 11 toward the vehicle body lateral outer side on both lateral outer sides of the pair of left and right vehicle body main frames 11. An intermediate portion is connected to the projecting end portion and the rear end portion of the front-rear facing portion 16b of the support frame 16, and an extension of the support rod 52 extending from the lateral end portion of the engine mounting frame 15 toward the lateral outer side of the vehicle body. A vertical frame 21 made of a round steel pipe having a lower end connected to the leading end, a rear horizontal frame 22 made of a round steel pipe facing the vehicle body connected across the upper ends of the pair of left and right vertical frames 21, Front and rear frames 23 made of round steel pipes facing the vehicle body in the rear direction and connected to the lower ends of the vertical frames 21 on both lateral outer sides of the pair of vehicle body main frames 11, and the pair of left and right front and rear frames 23 The front horizontal frame 24 made of a round steel pipe facing the vehicle body connected across the ends and the front end sides of the pair of left and right front and rear frames 23 are connected to each other, and the pair of left and right connection frames 18 are connected to each other. The connecting frame 25 is made of a round steel pipe material. Each of the pair of left and right front and rear frames 23 includes a floor frame portion 23a having a rear end portion connected to the vertical frame 21 and substantially horizontally along the vehicle body front and rear direction, and a front end portion of the floor frame portion 23a. A front wall frame portion 23b that extends in a state of being located on the front side of the vehicle body toward the upper end side in the upward direction of the vehicle body and has a posture of rising upward is configured.

すなわち、運転部フレーム20は、左右一対の縦フレーム21、後横フレーム22、左右一対の前後フレーム23、前横フレーム24によって運転室を形成し、左右一対の前後フレーム23それぞれの床フレーム部23a及び、この左右の床フレーム部23aにわたって取付けた床板50aによって運転部床50を形成するようになっている。   That is, the driving unit frame 20 forms a driver's cab with a pair of left and right vertical frames 21, a rear horizontal frame 22, a pair of left and right front and rear frames 23, and a front horizontal frame 24. And the driving | operation part floor | bed 50 is formed with the floor board 50a attached over this right-and-left floor frame part 23a.

フェンダー支持フレーム30は、両端側が車体前後向きになり、中間部が車体横向きになる屈曲形状に成形した丸鋼管材で成り、両端部が運転部フレーム20の左右一対の前壁フレーム部23bに各別に連結しているメインフレーム31、このメインフレーム31の前端部を左右一対の車体メインフレーム11に連結している車体上下向きの左右一対の連結フレーム32、メインフレーム31の車体前後向き部分と運転部フレーム20の前横フレーム24とにわたって連結している左右一対の車体前後向きでかつ前下がり傾斜の支持フレーム33を備えて成り、メインフレーム31や支持フレーム33によって左右前輪1のフェンダー53を支持するようになっている。   The fender support frame 30 is made of a round steel pipe formed into a bent shape with both end sides facing the front and rear of the vehicle body and the middle portion being lateral to the vehicle body. A separately connected main frame 31, a pair of left and right connecting frames 32 connecting the front end of the main frame 31 to a pair of left and right vehicle body main frames 11, a vehicle body front-rear facing portion of the main frame 31 and driving The frame 20 includes a pair of left and right vehicle body front and rear support frames 33 that are connected to the front horizontal frame 24 of the front frame 20 and are inclined forward and downward. The main frame 31 and the support frame 33 support the fender 53 of the left and right front wheels 1. It is supposed to do.

左右一対のサスペンション支持フレーム40のそれぞれは、図6、図7に示す如くプレス成形した一枚の板金部材によって構成してある。すなわち、前輪サスペンション54の上端側が連結する連結部41、及び、この連結部41から放射状に延びる複数本のリブ部42をサスペンション支持フレーム40の上面側に突出する状態で備えるようにプレス成形した板金部材によって構成してある。   Each of the pair of left and right suspension support frames 40 is constituted by a single sheet metal member press-molded as shown in FIGS. That is, a sheet metal that is press-molded so as to include a connecting portion 41 to which the upper end side of the front wheel suspension 54 is connected and a plurality of rib portions 42 that extend radially from the connecting portion 41 so as to protrude to the upper surface side of the suspension support frame 40. It is comprised by the member.

図1、図2などに示すように、運転部7の両横側に、座席5の横外側に位置するように配置し、かつ、運転部7に対する乗り降りの際に手で支持できるように構成した乗降用の手摺り55を設けてある。
図5などに示すように、この手摺り55は、一端側が車体前後向きになり、他端側が車体上下向きになるように折り曲げ成形した丸鋼管材で構成し、縦フレーム21の支持フレーム16が連結している部位より高レベルに位置する部位と、支持フレーム16の車体前後向き部分16bの縦フレーム21より車体前方側に位置する部位とにわたって連結することによって固定してある。
As shown in FIG. 1, FIG. 2, etc., it arrange | positions so that it may be located in the lateral outer side of the seat 5 on both sides of the driving | running | working part 7, and it is comprised so that it can support by hand at the time of getting on / off to the driving | running | working part 7 A handrail 55 for getting on and off is provided.
As shown in FIG. 5 and the like, the handrail 55 is formed of a round steel pipe bent and formed so that one end side is in the longitudinal direction of the vehicle body and the other end side is in the vertical direction of the vehicle body, and the support frame 16 of the vertical frame 21 is It fixes by connecting over the site | part located in a high level rather than the site | part connected, and the site | part located in the vehicle body front side rather than the vertical frame 21 of the vehicle body front-back direction part 16b of the support frame 16. FIG.

図1、図2に示すように、日除け6は、前後一対の転倒保護フレーム57,58の車体横向きの梁部57a,58aどうしにわたって取り付けてある。   As shown in FIGS. 1 and 2, the sunshade 6 is attached across the beam portions 57 a and 58 a facing the vehicle body of the pair of front and rear fall protection frames 57 and 58.

図6などに示すように、前後一対の転倒保護フレーム57,58のそれぞれは、両端側が車体上下向きの脚部57b、58bになり、中間部が車体横向きの梁部57a,58aになるように、すなわち車体前後方向視で門形になるように屈曲状態に成形した丸鋼管材で構成してあり、前側の転倒保護フレーム57は、両脚部57bの下端部を、運転部フレーム20の前端側の上端部に設けた左右一対の支持体61に各別に脱着自在に連結することによって脱着自在に取付けてあり、後側の転倒保護フレーム58は、両脚部58bの下端部を、運転部フレーム20の左右一対の縦フレーム21の上端部に設けた支持体62に各別に脱着自在に連結することによって脱着自在に取付けてある。すなわち、前側の転倒保護フレーム57も、後側の転倒保護フレーム58も、これに替えて運転キャビン(図示せず)を装備できるように脱着自在に備えてある。   As shown in FIG. 6 and the like, each of the pair of front and rear fall protection frames 57 and 58 has leg portions 57b and 58b vertically facing the vehicle body at both ends, and beam portions 57a and 58a horizontally facing the vehicle body. That is, it is composed of a round steel pipe formed in a bent state so as to be a gate shape when viewed from the front and rear of the vehicle body, and the front-side fall protection frame 57 has the lower end portions of both leg portions 57b at the front end side of the operating portion frame 20. Removably attached to the pair of left and right support bodies 61 provided at the upper end of each of the support members 61, and the rear-side fall protection frame 58 has the lower end portions of both leg portions 58b connected to the driving unit frame 20. Are attached to the support 62 provided at the upper end of the pair of left and right vertical frames 21 by being detachably connected to each other. That is, both the front-side fall protection frame 57 and the rear-side fall protection frame 58 are detachably provided so that an operation cabin (not shown) can be provided instead.

図8に示すように、運転部フレーム20の前端側に位置する左右一対の支持体61のそれぞれは、前輪フェンダー53の貫通孔53aから前輪フェンダー53より上方に突出した状態に配置してある。すなわち、転倒保護フレーム57の連結部を覆うゴムカバー63を除去すれば、前輪フェンダー53を取り外す手間を掛けなくとも、前輪フェンダー53の上方で転倒保護フレーム57の脱着作業が行なえるようになっている。   As shown in FIG. 8, each of the pair of left and right supports 61 positioned on the front end side of the driving unit frame 20 is disposed in a state of protruding upward from the front wheel fender 53 through the through hole 53 a of the front wheel fender 53. That is, if the rubber cover 63 that covers the connecting portion of the fall protection frame 57 is removed, the fall protection frame 57 can be attached and detached above the front wheel fender 53 without taking the trouble of removing the front wheel fender 53. Yes.

図9に示すように、エンジン燃焼用空気に除塵作用するエヤークリーナ70を、車体横側の運転部7の後側近くに設置してある。
図9、図10に示すように、エヤークリーナ70の吸気管71が下端側に連通している吸気ダクト72を、運転部7の座席5の横外側に位置する横外カバー73の内側に設けるとともに、吸気ダクト72の上端側に位置する吸気口72aに対向した複数個の吸気孔74を横外カバー73に設けてある。すなわち、エヤークリーナ70は、空気を横外カバー73の吸気孔74から吸気ダクト72に吸引し、この吸気ダクト72から吸気管71を通して内部に吸引してろ過処理してからエンジン3に燃焼用空気として供給するようになっている。
As shown in FIG. 9, an air cleaner 70 that removes dust from engine combustion air is installed near the rear side of the driving unit 7 on the side of the vehicle body.
As shown in FIGS. 9 and 10, an intake duct 72 in which the intake pipe 71 of the air cleaner 70 communicates with the lower end side is provided inside the lateral outer cover 73 located laterally outside the seat 5 of the operating unit 7. In addition, a plurality of intake holes 74 facing the intake ports 72 a located on the upper end side of the intake duct 72 are provided in the lateral outer cover 73. That is, the air cleaner 70 sucks air into the intake duct 72 from the intake hole 74 of the lateral outer cover 73, sucks the air through the intake pipe 71 through the intake duct 72, filters the air, and then supplies the combustion air to the engine 3. To supply as.

図1に示すように、運転部7に遮蔽カバー75を設けてある。
図11に示すように、この遮蔽カバー75は、座席5のシートクッション部の下方で遮蔽作用するメインカバー部75a、このメインカバー部75aの後部から車体上方向きに延出して座席5のシートバック部の後方で遮蔽作用する後カバー部75b、メインカバー部75aの前部から車体下方向きに延出して足元で遮蔽作用する前カバー部75c、メインカバー部75aの両横側でメインカバー部75aと後カバー部75bにわたって連結している横カバー部75dを備えて構成してあり、運転室とその下方や後方を仕切ってエンジン3、図3に示すエンジン冷却用ラジエータ76などから熱気や騒音が運転室に流入することを防止するようになっている。また、この遮蔽カバー75の一方の横側部には、この遮蔽カバー75とは別部品に形成した横外カバー73を脱着自在に連結し、他方の横側部には、遮蔽カバー75と別部品に形成した横外カバー77を脱着自在に連結するようになっている。各横外カバー73,77と遮蔽カバー75とは、手摺り55の基部、後転倒保護フレーム58の脚部58bの基部を挟むようになっている。
As shown in FIG. 1, the operating unit 7 is provided with a shielding cover 75.
As shown in FIG. 11, the shielding cover 75 includes a main cover portion 75 a that shields below the seat cushion portion of the seat 5, and extends from the rear portion of the main cover portion 75 a upward in the vehicle body to the seat back of the seat 5. A rear cover part 75b that shields behind the front part, a front cover part 75c that extends downward from the front part of the main cover part 75a and shields at the foot, and a main cover part 75a on both sides of the main cover part 75a And a horizontal cover portion 75d connected across the rear cover portion 75b. The engine 3 and the engine cooling radiator 76 shown in FIG. It is designed to prevent inflow into the cab. In addition, a lateral outer cover 73 formed as a separate part from the shielding cover 75 is detachably connected to one lateral side portion of the shielding cover 75, and is separated from the shielding cover 75 on the other lateral side portion. A lateral outer cover 77 formed on the part is detachably connected. The lateral outer covers 73 and 77 and the shielding cover 75 sandwich the base portion of the handrail 55 and the base portion of the leg portion 58b of the rear fall protection frame 58.

作業車全体の斜視図Perspective view of the entire work vehicle 作業車全体の側面図Side view of the entire work vehicle 車体内部の側面図Side view inside the car body 車体フレームの側面図Side view of body frame 車体フレーム全体の斜視図Perspective view of the entire body frame 車体フレームの前部、転倒保護フレームの斜視図Front view of body frame, perspective view of fall protection frame 前輪サスペンション支持構造の断面図Cross section of front wheel suspension support structure 前転倒保護フレーム取付け部の側面図Side view of the front fall protection frame mounting part 運転部の側面図Side view of the driving unit エヤークリーナ配設部の後面図Rear view of the air cleaner installation section 遮蔽カバー、横外カバーの斜視図Perspective view of shielding cover and side cover

符号の説明Explanation of symbols

1 前輪
2 後輪
3 エンジン
5 座席
7 運転部
70 エヤークリーナ
72 吸気ダクト
74 吸気孔
DESCRIPTION OF SYMBOLS 1 Front wheel 2 Rear wheel 3 Engine 5 Seat 7 Operation part 70 Air cleaner 72 Intake duct 74 Intake hole

Claims (1)

左右の前輪及び左右の後輪を備え、前輪と後輪との間に運転部を備えた作業車の運転部構造であって、
エンジンのエヤークリーナを車体横側の運転部の後側近くに備え、
前記エヤークリーナに連通する吸気ダクトを、前記運転部の座席の横外側を上方に延出するとともに、
前記吸気ダクトに空気を案内する吸気孔を、前記吸気ダクトの上端側で運転部の座席の横外側に備えてある作業車の運転部構造。

A driving part structure of a work vehicle including left and right front wheels and left and right rear wheels, and a driving part between the front wheels and the rear wheels,
An engine air cleaner is provided near the rear side of the driving part on the side of the vehicle body,
An intake duct that communicates with the air cleaner, and extends laterally outward of the seat of the driver,
A driving part structure of a work vehicle, wherein an intake hole for guiding air to the intake duct is provided on a lateral outer side of a seat of the driving part on an upper end side of the intake duct.

JP2005079409A 2005-03-18 2005-03-18 Operation part structure for working vehicle Pending JP2005212783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005079409A JP2005212783A (en) 2005-03-18 2005-03-18 Operation part structure for working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005079409A JP2005212783A (en) 2005-03-18 2005-03-18 Operation part structure for working vehicle

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2003047532A Division JP4107579B2 (en) 2003-02-25 2003-02-25 Working vehicle structure

Publications (1)

Publication Number Publication Date
JP2005212783A true JP2005212783A (en) 2005-08-11

Family

ID=34909755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005079409A Pending JP2005212783A (en) 2005-03-18 2005-03-18 Operation part structure for working vehicle

Country Status (1)

Country Link
JP (1) JP2005212783A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7673920B2 (en) 2006-10-05 2010-03-09 Kubota Corporation Operator's station structure for work vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7673920B2 (en) 2006-10-05 2010-03-09 Kubota Corporation Operator's station structure for work vehicle

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