WO2012086521A1 - ホイールローダ - Google Patents
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- Publication number
- WO2012086521A1 WO2012086521A1 PCT/JP2011/079089 JP2011079089W WO2012086521A1 WO 2012086521 A1 WO2012086521 A1 WO 2012086521A1 JP 2011079089 W JP2011079089 W JP 2011079089W WO 2012086521 A1 WO2012086521 A1 WO 2012086521A1
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- WIPO (PCT)
- Prior art keywords
- grill
- wheel loader
- cooling
- open
- close
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/52—Radiator or grille guards ; Radiator grilles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/52—Radiator or grille guards ; Radiator grilles
- B60R2019/525—Radiator grilles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/17—Construction vehicles, e.g. graders, excavators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/50—Tilting frame vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
Definitions
- the present invention relates to a wheel loader.
- a wheel loader includes a power chamber in which an engine is accommodated, a radiator for cooling the engine, and the like, and a cooling chamber partitioned by a partition wall with respect to the power chamber, and is sucked from a grill behind the vehicle It is known that air is supplied to a cooling chamber to cool a radiator, and cooling air supplied for cooling is discharged from the side and upper side of the cooling chamber (for example, see Patent Document 1).
- the grill part which is an inlet of cooling air is constituted as what has many suction holes, and the size of the opening formed by the fin of the radiator is larger than the size of the suction hole, Further, the size of the opening of the exhaust hole provided on the side and upper side of the cooling chamber is larger than the size of the opening of the fin. Therefore, dust that has passed through the suction holes of the grill passes through the radiator and rides on the cooled cooling air flow and is discharged to the outside through the exhaust hole. Therefore, the amount of dust remaining in the cooling chamber is small and maintenance is performed. Is easy.
- the ridge angle and the valley angle when the grill is viewed from the outside are obtuse angles.
- the bending radius of the trough when the grill is viewed from the outside is larger than the bending radius of the peak.
- the “appearance view” refers to viewing from the outside of the vehicle body, and in the embodiment described later, refers to viewing the grill from the rear of the vehicle body.
- the opening and closing grill is attached with an inclination so that the upper side is the front side of the vehicle.
- FIG. 2 is a perspective view showing a partial cross section of a vehicle loader side of the wheel loader shown in FIG. 1.
- FIG. 4 is a transverse cross-sectional view of the open / close grill, taken along arrows IV-IV in FIG. 3.
- FIG. 4 is a longitudinal sectional view of the open / close grill, taken along line VV in FIG. 3.
- FIG. 4 is a longitudinal sectional view of a fixed grill adjacent to an open / close grill, and is a view taken along arrow VI-VI in FIG. 2.
- the enlarged view which shows the principal part of an opening-and-closing grill and a fixed grill.
- a wheel loader 1 shown in FIG. 1 includes a vehicle body 2 having a front vehicle body 2A and a rear vehicle body 2B.
- an excavation / loading bucket 3 is a boom, a bell crank, and a connecting link.
- a work machine drive mechanism 4 such as a boom cylinder or a bucket cylinder.
- a cab 5, a power chamber 6, and a cooling chamber 7 are provided in order from the front of the vehicle (left direction in FIG. 1) in a rear body frame 9 as a body frame constituting the framework of the rear body 2B.
- the cab 5 accommodates a driver's seat (not shown) on which an operator is seated, an operation device, and the like.
- the power chamber 6 is located on the vehicle rear side (right side in FIG. 1) with respect to the cab 5, the ceiling surface is constituted by the ceiling cover 6 ⁇ / b> A, and the left and right side surfaces thereof are formed by the side cover 6 ⁇ / b> B. It is configured.
- the ceiling cover 6A is attached to a surrounding exterior cover, an internal frame or the like with bolts, and is detachable.
- the left and right side covers 6B are configured to be flipped up with the upper side as a fulcrum.
- an air cleaner that purifies the intake air supplied to the engine 10
- an exhaust gas purification device that collects particulate matter in the exhaust gas from the engine 10, and the like are housed. Yes.
- the radiator 72 is for cooling engine cooling water
- the aftercooler 73 is for cooling engine intake air
- the oil cooler 74 is for cooling hydraulic oil for hydraulic actuators such as boom cylinders and bucket cylinders
- the air conditioner condenser is a cab 5 for cooling the cooling medium of the air conditioner installed in 5.
- the cooling air is sucked from the grill 12 toward the cooling chamber 7 by the rotation of the cooling fan 71, passes through the cooling device, and flows toward the front side of the vehicle. And the cooling air which goes to the vehicle front side is discharged
- the knob 19 is provided with a shaft portion 21 that penetrates the main ventilation portion 17, and an engagement piece 22 is attached to the tip of the shaft portion 21.
- a plane L-shaped engagement bracket 23 is fixed to a frame (not shown) in the cooling chamber 7, and the engagement piece 22 is engaged with and disengaged from the engagement bracket 23.
- the engagement piece 22 is removed from the engagement bracket 23 to open and close the open / close grill 13 in the left-right direction around the hinge 24 provided on the frame member 15 on the opposite side of the knob 19. It is possible (illustrated by a two-dot chain line in FIG. 2).
- the engagement piece 22 is engaged and disengaged by rotating the knob 19, but other configurations may be used.
- the open / close grill 13 is attached with an overall inclination so that the upper side is the front side of the vehicle. This is because a part of the plurality of cooling devices in the cooling chamber 7 is attached so as to be inclined so that the upper side is the front side of the vehicle in order to improve the cleanability of the core.
- a radiator 72 is installed vertically on the front side in the cooling chamber 7 and behind the cooling fan 71.
- An oil cooler 74 is disposed at a position corresponding to the lower rear half of the radiator 71.
- an aftercooler 73 is provided to be inclined.
- the oil cooler 74 can be opened and closed in the left-right direction as a whole, but the aftercooler 73 is fixed.
- the aftercooler 73 is provided with an inclination, and accordingly, the air conditioner condenser is also provided with an inclination. Since the open / close grill 13 is attached with an inclination and the hinge 24 is provided along the frame member 15 of the open / close grill 13, the open / close grill 13 follows an open / close locus slightly inclined upward when opening and closing.
- the main ventilation part 17 that is curved in two directions and has a corrugated shape is manufactured by molding a punching metal with a press. Regarding the shape of the main ventilation portion 17 described above, press molding and removal from a press die are also considered. The number of press steps is determined by the convenience of the mold. The manufacturing method is not limited to press molding, and other molding methods may be used.
- a first closing member 31 that closes a gap between the open / close grill 13 and the counterweight 29 is provided on the rising piece 15 ⁇ / b> A on the cooling chamber 7 side. Is fixed with bolts.
- the first closing member 31 is formed by bending a flexible rubber sheet having substantially the same length as that of the frame member 15 into two along its long side and overlapping the long side edges. The structure is fixed to the piece 15A.
- the contact portion 32 on the lower side of the first closing member 31 is formed into a bag shape and contacts the upper surface 29A of the counterweight 29 with a predetermined contact area.
- the first closing member 31 does not have a lower end edge as in the case where it is formed of a simple bowl-shaped rubber sheet. Therefore, every time the open / close grill 13 is opened / closed, such a lower end edge is in contact with the upper surface 29A. It is possible to prevent early abrasion without repeating reverse folding.
- FIG. 6 shows a longitudinal section of the fixed grill 14.
- the fixed grill 14 also has a structure in which a sub-ventilation portion 33 made of punching metal is fixed in a frame body having a four-round frame.
- the peak portion, valley portion, bending angle, bending radius, shape of the planar portion, and the like are the same as those of the main ventilation portion 17.
- the sub vent portion 33 is press-molded in the same manner as the main vent portion 17.
- the cooling fan 71 As the cooling fan 71 rotates, outside air is sucked into the cooling chamber 7 from the rear of the vehicle body through the ventilation portions 17 and 33 of the grills 12 and 14. Accordingly, large foreign matters are captured on the outer surfaces of the ventilation portions 17 and 33 of the grills 12 and 14. Since adhesion of foreign matter causes a decrease in cooling efficiency, the cooling fan 71 is rotated in reverse by an automatic operation or by an operator operating a selection switch. At this time, by making the length dimension H1 larger than the length dimension H2 in the corrugated shape of the ventilation portions 17 and 33, the discharged foreign matter can easily fall downward without being caught by the valley portion 26. ing.
- FIG. 7 shows an enlarged view of the punching metal used for the ventilation portions 17 and 33 of the grills 13 and 14, and FIG. 8 shows an enlargement of the core of the radiator 72, the after cooler 73, the oil cooler 74, and the air conditioner condenser.
- the figure is shown.
- the diameter dimension D of many suction holes 18 formed in the punching metal is 3 mm
- the pitch P between the suction holes 18 arranged in a staggered pattern is 4.5 mm.
- the thickness dimension of the punching metal is 1.6 mm.
- the core includes a plurality of tubes 51 through which a fluid passes, and rectangular wave-shaped fins 52 that are disposed in openings between the tubes 51 and are fixed to the tubes 51.
- the fluid passing through the tube 51 is, for example, the cooling water of the engine 10 in the case of the radiator 72, the intake air supplied to the engine 10 in the case of the after cooler 73, and the oil cooler 74 in the case of the oil cooler 74, It is hydraulic fluid for hydraulic actuators, and in the case of an air conditioner condenser, it is a cooling medium that circulates between the air conditioner.
- the fin 52 is formed by performing wave processing on a continuous thin plate member with a wave processing machine, and the dimension W1 between the facing surfaces 53 at the wave portion of the fin 52 is 3 mm, and the opening of the tube 51 is formed.
- a dimension W2 between the side surface 54 facing the portion and the facing surface 55 of the fin 52 facing the portion is sufficiently larger than W1.
- the inter-wave space of the fin 52 exceeds the size of the opening of the suction hole 18 from the relationship between the diameter D of the punching metal suction hole 18 and the dimensions W1 and W2 at the core.
- the size of the opening 56 is larger, and dust and other foreign matters sucked into the cooling chamber 7 through the suction hole 18 can pass through the wave space 56 as they are, and the exhaust having a larger opening.
- the amount discharged from the ports 6C and 6D (FIGS. 1 and 2) etc. and clogged with the core or staying in the cooling chamber 7 is extremely small.
- the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
- the radiator 72, the after cooler 73, the oil cooler 74, the air conditioner condenser (not shown), and the like have been described as examples of the cooling device of the present invention.
- the air conditioner condenser (not shown), and the like have been described as examples of the cooling device of the present invention.
- all the cooling devices in the cooling chamber are described. Need not be accommodated, as long as at least one cooling device is accommodated.
- the suction type in which cooling air is sucked into the cooling chamber through the grill 12 from the outside has been described.
- the present invention is applied to a discharge type in which cooling air is sucked from the outer peripheral suction hole and discharged from the grill. May be.
- the suction hole 18 was circular, it is not limited to this, Polygons, such as a square and a hexagon, may be sufficient.
- the fin 52 of the core of the cooling device has a rectangular wave shape, but may be a sine wave shape, a triangular shape, or the like.
- the size of the opening of the wave space between the fins is equal to or larger than the size of the opening of the suction hole, and the foreign matter sucked from the suction hole may easily pass through the wave space, and their shape is arbitrary. .
- the present invention can be used for a wheel loader.
Abstract
Description
しかしながら、水平な階段状の曲げ加工では、横方向に対する荷重に対しては、十分に対抗できるが、縦方向の荷重に対しては、何ら寄与しないことから、その分をグリル部分の厚み寸法を大きくして対応している可能性が高い。従って、グリル部分の重量が大きくなり、組立性が悪い。
ここで、「外観視」とは、車体の外側から見ることをいい、後述する実施形態では、車体後方からグリルを見ることをいう。
これに対して本発明によれば、グリル自身の軽量化が図られていることから、そのようなアシストダンパーを用いなくとも、開閉グリルを容易に開閉でき、開閉操作を容易にできて、かつ構造も簡素化できる。
なお、以下の説明において、前後左右方向とは、オペレータが図1に示すキャブ5内の運転席に着座した状態における前後左右方向と同一方向をいう。
図1に示すホイールローダ1は、前部車体2Aと後部車体2Bとを有する車体2を備え、前部車体2Aの前方には、掘削・積込用のバケット3がブーム、ベルクランク、連結リンク、ブームシリンダ、バケットシリンダ等の作業機駆動機構4を介して取り付けられている。
後部車体2Bの骨組を構成する車体フレームとしての後部車体フレーム9には、車両前方(図1中左方向)から順にキャブ5、動力室6、および冷却室7がそれぞれ設けられている。
図2に示すように、動力室6は、キャブ5よりも車両後方側(図1中右側)に位置し、その天井面が天井カバー6Aによって構成され、その左右両側の側面がサイドカバー6Bによって構成されている。天井カバー6Aは、周囲の外装カバーや内部のフレーム等にボルトによって取り付けられており、着脱可能である。左右のサイドカバー6Bは、上部側を支点として跳ね上げ式に回動する構成である。
このような動力室6には、エンジン10の他、エンジン10に供給される吸気を浄化するエアクリーナや、エンジン10からの排気ガス内の粒状物質を捕集する排気ガス浄化装置などが収容されている。
図2において、グリル12は、左右方向に開閉自在に設けられた開閉グリル13と、開閉グリル13の左右両側に設けられた固定グリル14,14とで構成される。
開閉グリル13は、図3に示すように、上下左右の枠材15を四周枠組みして形成された矩形の枠体16内部に、全体形状が2方向に同時に湾曲した三次元的な湾曲形状を有するメイン通気部17の外周を溶接等により固着した構造である。つまり、本実施形態では、枠体16を備えることで、開閉グリル13全体の剛性が従来に比して格段に向上している。固定グリル14でも同様である。
なお、本実施形態では、係合片22の係脱は、ノブ19の回転操作によって行われているが、他の構成を用いてもよい。
開閉グリル13が傾斜して取り付けられ、開閉グリル13の枠材15に沿ってヒンジ24が設けられていることから、開閉グリル13は、開閉時には僅かに斜め上方に向いた開閉軌跡をたどる。
波形に形成されたメイン通気部17において、外観視した場合の山部25の折曲角度θ1、および谷部26の折曲角度θ2はそれぞれ鈍角であり、特に限定されるものではないが、本実施形態では110°前後である。また、山部25、谷部26の各折曲半径も特に限定されないが、本実施形態では、山部25の折曲半径R1が8mm、谷部26の折曲半径R2が12mmであり、R2>R1の関係にある。波形の形状としては、外側において斜め上方に向いた面状部27の上下方向の長さ寸法H1が、斜め下方に向いた面状部28の上下方向の長さ寸法H2よりも大きく、全体的に面状部27の占める面積が大きい形状となっている。また、θ1、θ2、R1、R2の関係から、山部25が大きく張り出すことがないため、特に面状部27の傾斜を大きくでき、面状部27上に異物が載ってしまって吸込孔18を塞ぐような心配がない。
なお、折曲半径R1,R2は共に、面状部27,28で挟まれた内側部分の折曲半径のことである。
なお、製造方法に関しては、プレス成形に限らず、他の成形方法でもよい。
第1閉塞部材31は、枠材15とほぼ等しい長さ寸法の柔軟なゴムシートを、その長辺に沿って2つに曲げ、長辺側の端縁同士を重ね合わせた状態にして立上片15Aに固定した構造になっている。第1閉塞部材31の下部側の接触部32は、袋状に丸めた形状とされ、所定の接触面積でカウンタウェイト29の上面29Aと接触する。従って、第1閉塞部材31では、単なる簾状のゴムシートで形成した場合のような下端縁が存在しないことから、開閉グリル13の開閉毎にそのような下端縁が上面29Aに接触しながら正逆の折り返しを繰り返すことがなく、早期に擦り切れるのを防止できる。
固定グリル14もやはり、四周枠組みされた枠体内にパンチングメタルで形成されたサブ通気部33を固着した構造である。固定グリル14のサブ通気部33にあっては、その山部、谷部、折曲角度、折曲半径、および面状部の形状等は、メイン通気部17のそれと同じである。サブ通気部33もメイン通気部17と同様、プレス成形される。
第2閉塞部材35は、枠材34とほぼ等しい長さ寸法を有した矩形のゴムシートで構成され、枠材34に対して簾状に取り付けられている。固定グリル14は、開閉グリル13とは異なって開閉されることがないため、第2閉塞部材35が簾状のゴムシートで構成され、その下端縁がカウンタウェイト29の上面29Aと接触していても、下端縁は折り返されながら上面29Aと擦れ合うことがなく、擦り切れる心配がない。
本実施形態では、パンチングメタルに形成された多数の吸込孔18の径寸法Dは、3mmであり、千鳥状に配置された吸込孔18間のピッチPは、4.5mmである。パンチングメタルの厚さ寸法は、図示しないが1.6mmである。
ここで、チューブ51を通る流体としては、例えばラジエータ72の場合では、エンジン10の冷却水であり、アフタークーラ73の場合では、エンジン10へ供給される吸気であり、オイルクーラ74の場合では、油圧アクチュエータ用の作動油であり、エアコンコンデンサの場合では、空調装置との間で循環する冷却媒体である。
フィン52は、連続した薄板部材に波状加工機にて波加工を施すことで形成されており、フィン52での波部分での対向面53間の寸法W1は、3mmであり、チューブ51の開口部分に臨む側面54とこれに対向するフィン52の対向面55との間の寸法W2は、W1よりも十分に大きい。
また、冷却室7内に配置された複数の冷却装置のコアを全て同じフィンピッチにすることで、特定の冷却装置のみに異物が詰まるのを抑制している。
さらに、メイン通気部17において、吸込孔18を通過せず、パンチングメタルの表面に付着した異物等は、メイン通気部17の裏側から所定圧の洗浄水によって洗い飛ばせばよいが、この際には、開閉グリル13を左右方向に開閉させることで、通常の立ち姿勢にて洗浄水を吹きかけることができ、上向き姿勢で行う必要がなくて、作業を容易にできる。
前記実施形態では、本発明の冷却装置として、ラジエータ72、アフタークーラ73、オイルクーラ74、図示略のエアコンコンデンサ等を例にあげて説明したが、本発明では、冷却室内にそれら全ての冷却装置が収容されている必要はなく、少なくとも1つの冷却装置が収容されていればよい。
前記実施形態では、冷却装置のコアのフィン52は矩形の波形状を有していたが、サイン波形状や三角形状等であってもよい。
要するに、フィンの波間空間の開口の大きさが吸込孔の開口の大きさ以上とされ、吸込孔から吸い込まれた異物が波間空間を通過し易くなっていればよく、それらの形状は任意である。
Claims (8)
- 冷却ファンおよび冷却装置が収容される冷却室と、
前記冷却ファンにより得られる冷却空気が通るグリルとを備え、
前記グリルは、四周枠組みされた枠体と、多数の吸込孔を有したパンチングメタルで前記枠体内に設けられた通気部とで構成され、
前記通気部は、上下複数段の階段状とされ、かつ前記冷却室の外方に向けて2方向に膨らむ三次元湾曲面である
ことを特徴とするホイールローダ。 - 請求項1に記載のホイールローダにおいて、
前記グリルを外観視した場合の山部の折曲角度および谷部の折曲角度が、それぞれ鈍角である
ことを特徴とするホイールローダ。 - 請求項1に記載のホイールローダにおいて、
前記グリルを外観視した場合の谷部の折曲半径は、山部の折曲半径よりも大きい
ことを特徴とするホイールローダ。 - 請求項1ないし請求項3のいずれかに記載のホイールローダにおいて、
前記グリルの外観視した場合の谷部の下側の上下方向の長さ寸法は、上側の上下方向の長さ寸法よりも大きい
ことを特徴とするホイールローダ。 - 請求項1ないし請求項3のいずれかに記載のホイールローダにおいて、
前記グリルは、中央に配置された開閉自在な開閉グリルと、
前記開閉グリルの左右両側に配置された固定グリルとで構成されている
ことを特徴とするホイールローダ。 - 請求項5に記載のホイールローダにおいて、
前記開閉グリルは、左右方向に開閉する
ことを特徴とするホイールローダ。 - 請求項5に記載のホイールローダにおいて、
前記開閉グリルは、上方側が車両前側となるように傾斜して取り付けられている
ことを特徴とするホイールローダ。 - 請求項6に記載のホイールローダにおいて、
前記開閉グリルは、上方側が車両前側となるように傾斜して取り付けられている
ことを特徴とするホイールローダ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11851827.3A EP2540546B1 (en) | 2010-12-24 | 2011-12-15 | Wheel loader |
CN201180012677.1A CN102781703B (zh) | 2010-12-24 | 2011-12-15 | 轮式装载机 |
US13/634,460 US8820450B2 (en) | 2010-12-24 | 2011-12-15 | Wheel loader |
JP2012522317A JP5074638B2 (ja) | 2010-12-24 | 2011-12-15 | ホイールローダ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-288819 | 2010-12-24 | ||
JP2010288819 | 2010-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012086521A1 true WO2012086521A1 (ja) | 2012-06-28 |
Family
ID=46313797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/079089 WO2012086521A1 (ja) | 2010-12-24 | 2011-12-15 | ホイールローダ |
Country Status (5)
Country | Link |
---|---|
US (1) | US8820450B2 (ja) |
EP (1) | EP2540546B1 (ja) |
JP (1) | JP5074638B2 (ja) |
CN (1) | CN102781703B (ja) |
WO (1) | WO2012086521A1 (ja) |
Cited By (4)
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JP5501535B1 (ja) * | 2013-09-20 | 2014-05-21 | 株式会社小松製作所 | ラジエータグリル |
JPWO2018123006A1 (ja) * | 2016-12-28 | 2018-12-27 | 株式会社小松製作所 | 作業車両 |
JP2020196404A (ja) * | 2019-06-05 | 2020-12-10 | サカエ理研工業株式会社 | 車両用外装品 |
US11225136B2 (en) | 2019-06-26 | 2022-01-18 | Aisin Seiki Kabushiki Kaisha | Grille shutter |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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US8770329B2 (en) * | 2011-07-18 | 2014-07-08 | Caterpillar Forest Products Inc. | Engine cooling system |
JP5758338B2 (ja) * | 2012-03-29 | 2015-08-05 | 株式会社クボタ | 作業機 |
WO2014128911A1 (ja) * | 2013-02-22 | 2014-08-28 | 株式会社小松製作所 | ホイールローダ |
JP5915582B2 (ja) * | 2013-03-29 | 2016-05-11 | マツダ株式会社 | 車両のグリルシャッタ構造 |
WO2014184967A1 (ja) * | 2013-08-07 | 2014-11-20 | 株式会社小松製作所 | ホイールローダ |
DE102013112825A1 (de) * | 2013-11-20 | 2015-05-21 | Valeo Klimasysteme Gmbh | Frontmodul eines Fahrzeugs |
JP6322151B2 (ja) * | 2015-03-12 | 2018-05-09 | 株式会社Kcm | 作業機械の冷却構造及び作業機械 |
US10752263B2 (en) * | 2016-02-29 | 2020-08-25 | Mitsubishi Electric Corporation | Vehicular cooling device |
KR102600956B1 (ko) * | 2016-09-22 | 2023-11-13 | 삼성전자주식회사 | 공기조화기 |
IT201600111193A1 (it) * | 2016-11-04 | 2018-05-04 | Piaggio & C Spa | Sistema di raffreddamento del motore di un motoveicolo |
US10480390B2 (en) * | 2016-12-28 | 2019-11-19 | Komatsu Ltd. | Work vehicle, and position adjustment method of movable portion of work vehicle |
US10562476B2 (en) * | 2018-06-27 | 2020-02-18 | Caterpillar Inc. | Guard assembly for a machine |
USD900887S1 (en) | 2019-01-17 | 2020-11-03 | Caterpillar Inc. | Grill |
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- 2011-12-15 US US13/634,460 patent/US8820450B2/en active Active
- 2011-12-15 CN CN201180012677.1A patent/CN102781703B/zh active Active
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JP5501535B1 (ja) * | 2013-09-20 | 2014-05-21 | 株式会社小松製作所 | ラジエータグリル |
US8875824B1 (en) | 2013-09-20 | 2014-11-04 | Komatsu Ltd. | Radiator grill |
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JPWO2018123006A1 (ja) * | 2016-12-28 | 2018-12-27 | 株式会社小松製作所 | 作業車両 |
US10584465B2 (en) | 2016-12-28 | 2020-03-10 | Komatsu Ltd. | Work vehicle |
JP2020196404A (ja) * | 2019-06-05 | 2020-12-10 | サカエ理研工業株式会社 | 車両用外装品 |
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US11225136B2 (en) | 2019-06-26 | 2022-01-18 | Aisin Seiki Kabushiki Kaisha | Grille shutter |
Also Published As
Publication number | Publication date |
---|---|
US20130000999A1 (en) | 2013-01-03 |
CN102781703A (zh) | 2012-11-14 |
US8820450B2 (en) | 2014-09-02 |
EP2540546A4 (en) | 2013-06-05 |
JP5074638B2 (ja) | 2012-11-14 |
EP2540546B1 (en) | 2014-04-30 |
EP2540546A1 (en) | 2013-01-02 |
JPWO2012086521A1 (ja) | 2014-05-22 |
CN102781703B (zh) | 2013-07-31 |
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