JP3686798B2

JP3686798B2 - Cabin air conditioner mounting structure

Info

Publication number: JP3686798B2
Application number: JP23496799A
Authority: JP
Inventors: 正彦芳野; 孝司越智; 卓二小松
Original assignee: Iseki and Co Ltd; Zexel Valeo Climate Control Corp
Current assignee: Iseki and Co Ltd; Valeo Thermal Systems Japan Corp
Priority date: 1999-08-23
Filing date: 1999-08-23
Publication date: 2005-08-24
Anticipated expiration: 2015-09-11
Also published as: JP2000094949A

Description

【０００１】
【発明の属する技術分野】
本発明は、キャビンの空調装置取付け構造の技術に関する。
【０００２】
【従来の技術】
従来、特開平７−００１９４７号公報のようにキャビンの上部に空調装置を取り付ける技術が知られている。このものは、空調装置全体をキャビンの室内上部に取り付けている。また、キャビンの上部の左右前支柱上部間、左右後支柱上部間および前後支柱上部間は箱状断面の上部枠で連結した構成をしている。
【０００３】
【発明が解決しようとする課題】
キャビンの室内の快適性を向上させるために、キャビンの室内には空調装置や音響機器など様々な電装器機が取り付けらている。これに伴い、空調装置や音響器機、及びその配線等をコンパクトに収納してキャビン室内の空間を効率よく利用することが必要となってきた。しかしながら、上記従来のキャビン室の空調装置の取付け構造は、空調装置の殆ど全体をキャビンの上部枠内に取り付けているためにキャビンの室内、特に運転者の頭上廻りの空間が狭くなる構成であった。また、移動車両においては法規上から、機体の全高が一定寸法内に制限されているためにキャビンの高さを高くすると税制面や点検整備の面でコストアップにつながる場合がある。
【０００４】
本発明は、以上のような課題に対処するために次のような手段を講じた。即ち、一対の前支柱２２・２２及び一対の後支柱２３・２３と、前後支柱２２・２３上端部を連結する横フレーム４・４と、板状の前フレーム６とを備えたキャビン３の上部に空調装置１を取り付け、前記空調装置１の内部前方には熱交換部４３を、且つ該空調装置１の内部後方にはキャビン３室内への風向きをガイドする風向きガイド４４を有する排風部４５を設け、さらに該空調装置１の前方外部の一端部には吸風部２を設け、この空調装置１の吸風部２をキャビン３上部の室外に突出すると共に、空調装置１の他端部を前記キャビン３上部の室内に取り付けるものであって、前記横フレーム４・４の間に、中央部に切欠き７を有した仕切板５を立設した前記前フレーム６を掛け渡し、仕切板５の切欠き７に空調装置１の前記吸風部２と他端部の間の外壁面を係合させてキャビン３上部の室内と室外を仕切り、前記熱交換部４３の底面に設けた排水溝４７、４８に接続された排水パイプ４９が、前記前支柱２２内を通ってキャビン３の室外へ開放されているキャビンの空調装置取付け構造とした。
また、一対の前支柱２２・２２及び一対の後支柱２３・２３と、前後支柱２２・２３上端部を連結する横フレーム４・４と、板状の前フレーム６とを備えたキャビン３の上部に空調装置１を取り付け、前記空調装置１の内部前方にはキャビン３室内への風向きをガイドする風向きガイド４４を有する排風部４５を、且つ該空調装置１の内部後方には熱交換部４３を設け、さらに該空調装置１の後方外部の一端部には吸風部２を設け、この空調装置１の吸風部２をキャビン３上部の室外に突出すると共に、空調装置１の他端部を前記キャビン３上部の室内に取り付けるものであって、前記横フレーム４・４の間に、中央部に切欠き７を有した仕切板５を立設した前記前フレーム６を掛け渡し、仕切板５の切欠き７に空調装置１の前記吸風部２と他端部の間の外壁面を係合させてキャビン３上部の室内と室外を仕切り、前記熱交換部４３の底面に設けた排水溝４７、４８に接続された排水パイプ４９が、前記前支柱２２内を通ってキャビン３の室外へ開放されているキャビンの空調装置取付け構造とした。
【０００５】
【発明の実施の形態】
以下、本発明の一実施例を農用トラクタ（以下、トラクタ）におけるキャビンの空調装置取付け構造について説明する。トラクタ１０は、ボンネット１１に覆われたエンジン１２からクラッチハウジング、ミッションケース、及びリアミッションケース等を一体的に連結した主枠１３を機体の剛体主要部とし、この主枠１３の前後左右に前後輪１４・１５を設けている。そして、前記エンジン１２の回転動力をミッションケース内の変速機構によって適宜減速し、前後輪１４・１５に伝達して走行する構成になっている。前記ボンネット１１の後部には、フロントガラス１６を挟んでメータパネル１７が設けられている。更に、前記ミッションケース中央部上面にはフロア１８が設けられ、このフロア１８の後端部は後輪１５・１５を前方から上方にかけて覆うフェンダー１９・１９に接続されている。フロア１８の上方、及びフェンダー１９・１９間は後述するキャビン３によって取り囲まれ、ハンドル２０、運転座席２１、操作レバー等から成る操縦室が構成されている。また、前記主枠１３の後部には作業機を連結するための３点リンク機構（図示せず）を設けている。
【０００６】
キャビン３は、フレーム部、ドア部、ルーフ、そして空調装置等の電装器機とから構成されている。キャビン３のフレーム部は、フロア１８の前端部の左右から上方に突出する前支柱２２・２２と、左右フェンダー１９・１９の後端部から上方に突出する後支柱２３・２３と、後支柱２３・２３の上端部同士を連結する後フレーム２５と、前後支柱２２・２３の上端間を連結する横フレーム４・４と、後述する板状の前フレーム６から構成されている。前支柱２２と横フレーム４・４は、中空状の金属パイプであって、後述する電装機器のハーネスや空調装置１の配管を通すことができる。そして、左右の前支柱２２・２２間にはフロントガラス１６が挟持され、左右の後支柱２３・２３間にはリアガラス２４が挟持されている。
【０００７】
前支柱２２・２２の上端同士、若しくは横フレーム４・４の前端同士は、詳しくは従来例として後述するが、パイプ状、若しくは柱状の径大部材で上部枠を形成して接続していたが、本発明では、左右横フレーム４・４の前部の側面間に板状の金属性の前フレーム６を溶接して掛け渡し、その前上がりの前部をフロントガラス１６より突出して設け、この前フレーム６の室外の突出部に外気導入口２８を開口している。また、フロントガラス１６上方に前フレーム６と一体の仕切板５を立設している。
【０００８】
仕切板５について説明すると、この仕切板５は、金属性の鉄板で正面視中央部に凹形の切欠き７を設けている。この凹形の切欠き７には、後述する空調装置１の熱交換部４３が挟持される。前述のように仕切板５の底面は、前フレーム６の上面に溶接され、仕切板５の左右端部は横フレーム４・４に溶接されている。また、その切欠き７の側方部には空気循環口３０が開口されている。外気導入口２８と空気循環口３０とは、開閉シャッター３１の回動操作により、どちらか一方を塞ぐことができるように正面視で同じ位置で前後に対向して開口され、空調装置１へ外気を送り込むか、キャビン室２の室内空気を送り込むかを選択する。
【０００９】
前記空調装置１について説明すると、空調装置１は、前部のモータ４０やファン４１を内蔵した吸風部２と、中央部のエバポレータやヒータ等を内蔵した熱交換部４３と、後部の風向きガイド４４等を取り付けた排風部４５から構成され、樹脂性のカバー３４に覆われている。吸風部２の左右側壁にはファン４１に空気を送りこむ吸風口４２・４２が開口されている。熱交換部４３の左右側壁の前部には仕切板５の切欠き７の壁部を案内する上下方向の溝を有した案内具４６を設けている。更に、熱交換部４３の底面には、第一排水溝４７と第二排水溝４８が設けられ、夫々排水パイプ４９が着脱式に接続されている。この排水パイプ４９は、前記前支柱２２の中空部を通りキャビン３の室外へ開放されている。尚、仕切板５より後方の前フレーム６ａは、空調装置１の熱交換部４３の下面を覆い水平状に延長され、第二排水溝４８の後下方から上向きに上昇して水平面６ｂに続いている。更に、水平面６ｂの延長部はルーフ３２に向って立設され、この立設部分に空調装置１の風向きガイド４４・４４・４４を挿通可能とした開口部６ｃ・６ｃ・６ｃを設けている。このように、キャビン３の室内側の前フレーム６ａを空調装置１の底面の形状に沿った形状としたため作業者の頭上の空間を広く取ることができる。前記エバポレータやヒータに接続された配管（図示せず）も前支柱２２内を通り前記ボンネット１０内のコンプレッサーや冷却器やラジエター等の適所に接続されている。
【００１０】
空調装置１の取り付け方法を説明する。ここで、空調装置１を直接室内側の前フレーム６に取り付けることも考えられるが、図例では、空調装置を図４のように略水平状の板体である支持部材５０上にボルト５３・５３・５３…によって取り付ける。図中では、空調装置の左右に音響器機５２と空調装置１の操作ユニット５１も同様に支持部材５０にボルト５３・５３・５３…で取り付けられている。そして、支持部材５０は、左右両端部を横フレーム４・４へボルト５４・５４・５４…で取り付ける。このとき、吸風部２を仕切板５の前方空間に突出させて、左右側壁の案内具４６・４６を仕切板５の切欠き７に差し込んで固定する。このように、空調装置１前部の案内具４６によって、キャビン３の室内と室外を分けるので、この案内具の４６のシール性を向上しておけば空調性能を保持できる。前述のように支持部材５０に空調装置１を取り付けた後、排水パイプ４９や各配線及び配管を接続して、シール材３３を介しルーフ３２でキャビン３上部、及び空調装置１の吸風部２を覆う。
【００１１】
このように空調装置１、操作ユニット５１、音響器機５２を支持部材５０に一体に取り付けた後、この支持部材５０を横フレーム４・４に取り付けるために、前記前フレーム６と共にキャビン２の上部前側の補強という効果も有する。また、生産時に個別に各装置をキャビン２の室内側の前フレーム６上に各部品を取付けるよりも組付けが容易になり、故障時に対しても各配線や配管を外して支持部材５０、若しくは空調装置１・操作ユニット５１・音響機器５２等の各装置を個別に交換できることから迅速に対応可能である。尚、これら前フレーム６の吸風部２の下面とキャビン３の室内上面は樹脂性のカバー３４によって覆われている。
【００１２】
尚、キャビン３のドア部は、前記前支柱２２、フロア１８、フェンダー１９、後支柱２３、横フレーム２６の形状に即したドア枠５５を設け、後支柱２３の上下二個所にヒンジ５７・５７を取り付け、ドアノブ５８によって開閉可能に構成されている。ドア枠５５は、上下にドアガラス５６・５６をはめ込んだ構成としている。
【００１３】
従来のキャビンの空調装置取り付け構造の欠点について説明すると、先に述べた上部枠は、径大部材のフレームを連結した構成であり、これらの断面は箱状のような厚みを有する部材であった。そのために、空調装置の吸風部を室外に設けるには、上部枠の上方に空調装置を取り付けるか、若しくは上部枠の下方に取り付ける必要があった。前者は、空調装置の厚さ分だけルーフの高さを高くする必要が生じ、後者は、キャビンの室内の天井を低くするために作業者の視界を妨げる不都合が生じる。本発明のように、空調装置を上部枠と同じ高さ上に取り付けようとする場合、その吸風部の形状は上部枠を迂回する複雑な形状にしなくてはならない。
【００１４】
本発明のように、切欠き７を有した仕切板５を立設した板状の前フレーム６を設けることにより、ルーフの高さを上げること無く、キャビン室内を広く利用可能となった。また、説明は省略するが別実施例として空調装置１をキャビン上部後方に取り付けることも考えられ、この場合には空調装置１全体をキャビン３の室内に設置することと比較して、作業者の頭上を邪魔せず室内が広くなるという効果を有している。
【００１５】
尚、本発明は、キャビンを搭載する車両一般に応用可能である。
【００１６】
【発明の効果】
以上のように、本発明のキャビンの空調装置取付け構造は、一対の前支柱２２・２２及び一対の後支柱２３・２３と、前後支柱２２・２３上端部を連結する横フレーム４・４と、板状の前フレーム６とを備えたキャビン３の上部に空調装置１を取り付け、前記空調装置１の内部前方には熱交換部４３を、且つ該空調装置１の内部後方にはキャビン３室内への風向きをガイドする風向きガイド４４を有する排風部４５を設け、さらに該空調装置１の前方外部の一端部には吸風部２を設け、この空調装置１の吸風部２をキャビン３上部の室外に突出すると共に、空調装置１の他端部を前記キャビン３上部の室内に取り付けるものであって、前記横フレーム４・４の間に、中央部に切欠き７を有した仕切板５を立設した前記前フレーム６を掛け渡し、仕切板５の切欠き７に空調装置１の前記吸風部２と他端部の間の外壁面を係合させてキャビン３上部の室内と室外を仕切り、前記熱交換部４３の底面に設けた排水溝４７、４８に接続された排水パイプ４９が、前記前支柱２２内を通ってキャビン３の室外へ開放されている構造、また一対の前支柱２２・２２及び一対の後支柱２３・２３と、前後支柱２２・２３上端部を連結する横フレーム４・４と、板状の前フレーム６とを備えたキャビン３の上部に空調装置１を取り付け、前記空調装置１の内部前方にはキャビン３室内への風向きをガイドする風向きガイド４４を有する排風部４５を、且つ該空調装置１の内部後方には熱交換部４３を設け、さらに該空調装置１の後方外部の一端部には吸風部２を設け、この空調装置１の吸風部２をキャビン３上部の室外に突出すると共に、空調装置１の他端部を前記キャビン３上部の室内に取り付けるものであって、前記横フレーム４・４の間に、中央部に切欠き７を有した仕切板５を立設した前記前フレーム６を掛け渡し、仕切板５の切欠き７に空調装置１の前記吸風部２と他端部の間の外壁面を係合させてキャビン３上部の室内と室外を仕切り、前記熱交換部４３の底面に設けた排水溝４７、４８に接続された排水パイプ４９が、前記前支柱２２内を通ってキャビン３の室外へ開放されている構造としたので、吸風部２を設置する空間分がキャビン３の室外となりキャビン３の室内の上部前後方向を広く利用できる。また、空調装置１の取り付け部分として、切り欠き７を有した仕切板５を立設した板状の前フレーム６を設けることにより、ルーフ高さを上げることも無く、上下方向の厚みも少なくなり同様にキャビン３の室内を広く利用可能となった。
さらに、生産時に個別に各装置をキャビン３の室内側の前フレーム６上に各部品を取付けるよりも組付けが容易になり、故障時に対しても各配線や配管を外して空調装置１等の各装置を個別に交換できることから迅速に対応可能である。
さらに、空調装置１の内部後方に設けた風向きガイド４４によりキャビン３室内への風向きをガイドできる。また排水パイプ４９が前記前支柱２２内を通ってキャビン３の室外へ開放されていることから、キャビン３の室内を広く利用できる。
【図面の簡単な説明】
【図１】空調装置取付後の側面図。
【図２】トラクタの全体側面図。
【図３】キャビンの各フレームと空調装置の位置関係を示す図。
【図４】空調装置と支持部材の取り付け図。
【図５】支持部材とキャビンに取り付けた時の上面図。
【図６】支持部材とキャビンに取り付けた時の背面断面図。
【符号の説明】
１空調装置２吸風部
３キャビン４横フレーム
５仕切板６前フレーム
７切欠き１６フロントガラス
２２前支柱３２ルーフ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technology of a cabin air conditioner mounting structure.
[0002]
[Prior art]
Conventionally, a technique for attaching an air conditioner to the upper part of a cabin as disclosed in Japanese Patent Application Laid-Open No. 7-001947 is known. In this device, the entire air conditioner is attached to the upper part of the cabin. The upper left and right front struts, the left and right rear struts, and the front and rear struts at the top of the cabin are connected by an upper frame having a box-shaped cross section.
[0003]
[Problems to be solved by the invention]
In order to improve the comfort in the cabin, various electrical equipment such as an air conditioner and an acoustic device are installed in the cabin. Along with this, it has become necessary to efficiently store the space in the cabin by storing the air conditioner, the sound equipment, and the wiring thereof in a compact manner. However, the conventional structure for mounting an air conditioner in a cabin room is such that almost the entire air conditioner is mounted in the upper frame of the cabin, so that the space inside the cabin, particularly around the driver's head, is reduced. It was. In addition, because of the legal restrictions on mobile vehicles, the overall height of the fuselage is limited to a certain size, so increasing the cabin height may lead to increased costs in terms of taxation and inspection and maintenance.
[0004]
The present invention has taken the following measures in order to cope with the above problems. That is, the upper part of the cabin 3 provided with a pair of front struts 22 and 22 and a pair of rear struts 23 and 23, horizontal frames 4 and 4 connecting the upper ends of the front and rear struts 22 and 23, and a plate-like front frame 6. the air conditioner 1 installed in wind exhaust unit 45 having a wind direction guide 44 is inside the front of the air conditioner 1 to heat exchanger 43, and inside the rear of the air conditioning apparatus 1 for guiding the wind direction to the cabin 3 room the provided further provided air intake portion 2 at one end of the front outer portion of the air conditioning apparatus 1, the projecting an air intake portion 2 of the air conditioner 1 to the outdoor cabin 3 top, the other end of the air conditioner 1 And the front frame 6 having a partition plate 5 having a notch 7 in the middle portion is spanned between the horizontal frames 4 and 4 and is partitioned between the horizontal frames 4 and 4. In the notch 7 of the plate 5, the air suction part 2 of the air conditioner 1 and A drain pipe 49 connected to drain grooves 47 and 48 provided on the bottom surface of the heat exchanging portion 43 is formed by partitioning the interior of the cabin 3 and the outside of the cabin 3 by engaging outer wall surfaces between the end portions. The cabin air conditioner mounting structure is opened to the outside of the cabin 3 through the interior.
The upper part of the cabin 3 having a pair of front struts 22 and 22 and a pair of rear struts 23 and 23, horizontal frames 4 and 4 connecting the front and rear struts 22 and 23, and a plate-like front frame 6 is provided. The air conditioner 1 is attached to the air conditioner 1, the air exhaust unit 45 having a wind direction guide 44 for guiding the wind direction into the cabin 3 is guided in front of the air conditioner 1 , and the heat exchanger 43 is disposed in the rear of the air conditioner 1. the provided further provided air intake portion 2 at one end of the Hogaibu after the air conditioning apparatus 1, the projecting an air intake portion 2 of the air conditioner 1 to the outdoor cabin 3 top, the other end of the air conditioner 1 And the front frame 6 having a partition plate 5 having a notch 7 in the middle portion is spanned between the horizontal frames 4 and 4 and is partitioned between the horizontal frames 4 and 4. In the notch 7 of the plate 5, the air suction part 2 of the air conditioner 1 and A drain pipe 49 connected to drain grooves 47 and 48 provided on the bottom surface of the heat exchanging portion 43 is formed by partitioning the interior of the cabin 3 and the outside of the cabin 3 by engaging outer wall surfaces between the end portions. The cabin air conditioner mounting structure is opened to the outside of the cabin 3 through the interior.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a cabin air conditioner mounting structure in an agricultural tractor (hereinafter referred to as a tractor) according to an embodiment of the present invention will be described. The tractor 10 has a main frame 13 in which a clutch housing, a transmission case, a rear transmission case, and the like are integrally connected from an engine 12 covered with a bonnet 11 as a rigid main part of the fuselage. Rings 14 and 15 are provided. The engine 12 is configured to travel by being decelerated as appropriate by the speed change mechanism in the transmission case and transmitted to the front and rear wheels 14 and 15. A meter panel 17 is provided behind the bonnet 11 with a windshield 16 interposed therebetween. Furthermore, a floor 18 is provided on the upper surface of the center of the transmission case, and the rear end of the floor 18 is connected to fenders 19 and 19 that cover the rear wheels 15 and 15 from the front to the top. Above the floor 18 and between the fenders 19 and 19 are surrounded by a cabin 3 which will be described later, and a cockpit composed of a handle 20, a driver seat 21, an operation lever and the like is configured. Further, a three-point link mechanism (not shown) for connecting a work machine is provided at the rear portion of the main frame 13.
[0006]
The cabin 3 includes a frame part, a door part, a roof, and electrical equipment such as an air conditioner. The frame portion of the cabin 3 includes front struts 22 and 22 projecting upward from the left and right of the front end portion of the floor 18, rear struts 23 and 23 projecting upward from the rear end portions of the left and right fenders 19 and 19, and a rear strut 23. A rear frame 25 for connecting the upper ends of 23, horizontal frames 4 and 4 for connecting the upper ends of the front and rear columns 22 and 23, and a plate-like front frame 6 described later. The front strut 22 and the horizontal frames 4 and 4 are hollow metal pipes through which a harness of an electrical equipment and a pipe of the air conditioner 1 described later can be passed. A windshield 16 is sandwiched between the left and right front columns 22 and 22, and a rear glass 24 is sandwiched between the left and right rear columns 23 and 23.
[0007]
The upper ends of the front struts 22 and 22 or the front ends of the horizontal frames 4 and 4 will be described later in detail as a conventional example, but the upper frame is formed by a pipe-shaped or columnar large-diameter member and connected. In the present invention, a plate-like metallic front frame 6 is welded between the front side surfaces of the left and right horizontal frames 4 and 4, and the front rising front part is provided so as to protrude from the windshield 16. An outside air introduction port 28 is opened at a protruding portion of the front frame 6 outside the room. In addition, a partition plate 5 integral with the front frame 6 is erected above the windshield 16.
[0008]
The partition plate 5 will be described. The partition plate 5 is a metallic iron plate and is provided with a concave notch 7 in the central part in front view. A heat exchanging portion 43 of the air conditioner 1 to be described later is sandwiched between the concave notches 7. As described above, the bottom surface of the partition plate 5 is welded to the top surface of the front frame 6, and the left and right ends of the partition plate 5 are welded to the horizontal frames 4 and 4. In addition, an air circulation port 30 is opened at a side portion of the notch 7. The outside air introduction port 28 and the air circulation port 30 are opened facing the front and rear at the same position in front view so as to be able to close either one by the turning operation of the opening / closing shutter 31, and the outside air is supplied to the air conditioner 1. Or the room air in the cabin 2 is selected.
[0009]
The air conditioner 1 will be described. The air conditioner 1 includes an air intake section 2 including a front motor 40 and a fan 41, a heat exchanging section 43 including an evaporator and a heater in the center, and a wind direction guide at the rear. It is comprised from the ventilation part 45 which attached 44 grade | etc., And is covered with the resinous cover 34. FIG. Air intake ports 42 and 42 for sending air to the fan 41 are opened on the left and right side walls of the air intake portion 2. At the front part of the left and right side walls of the heat exchanging part 43, a guide tool 46 having a vertical groove for guiding the wall part of the notch 7 of the partition plate 5 is provided. Furthermore, the 1st drainage groove 47 and the 2nd drainage groove 48 are provided in the bottom face of the heat exchange part 43, and the drainage pipe 49 is connected detachably, respectively. The drain pipe 49 is opened to the outside of the cabin 3 through the hollow portion of the front support 22. The front frame 6a behind the partition plate 5 extends horizontally so as to cover the lower surface of the heat exchanging portion 43 of the air conditioner 1, and rises upward from below the second drainage groove 48 to continue to the horizontal surface 6b. Yes. Further, the extended portion of the horizontal surface 6b is erected toward the roof 32, and openings 6c, 6c, and 6c through which the airflow direction guides 44, 44, and 44 of the air conditioner 1 can be inserted are provided in the erected portion. Thus, since the front frame 6a on the indoor side of the cabin 3 is shaped along the shape of the bottom surface of the air conditioner 1, the overhead space of the operator can be widened. A pipe (not shown) connected to the evaporator and the heater also passes through the front column 22 and is connected to an appropriate place such as a compressor, a cooler, and a radiator in the bonnet 10.
[0010]
A method for attaching the air conditioner 1 will be described. Here, it is conceivable that the air conditioner 1 is directly attached to the front frame 6 on the indoor side. However, in the illustrated example, the air conditioner is mounted on the support member 50 which is a substantially horizontal plate as shown in FIG. Attach with 53, 53. In the figure, the sound equipment 52 and the operation unit 51 of the air conditioner 1 are also attached to the support member 50 with bolts 53, 53, 53. The left and right ends of the support member 50 are attached to the horizontal frames 4 and 4 with bolts 54, 54, 54. At this time, the air suction portion 2 is projected into the front space of the partition plate 5 and the right and left side guides 46 and 46 are inserted into the notches 7 of the partition plate 5 and fixed. As described above, since the cabin 3 and the outside of the cabin 3 are separated by the guide 46 at the front of the air conditioner 1, the air-conditioning performance can be maintained if the sealing performance of the guide 46 is improved. After the air conditioner 1 is attached to the support member 50 as described above, the drain pipe 49 and each wiring and piping are connected, and the upper portion of the cabin 3 and the air suction portion 2 of the air conditioner 1 are connected by the roof 32 via the seal material 33. Cover.
[0011]
After the air conditioner 1, the operation unit 51, and the sound device 52 are integrally attached to the support member 50 as described above, the upper front side of the cabin 2 together with the front frame 6 is attached in order to attach the support member 50 to the horizontal frames 4 and 4. It also has the effect of reinforcing. In addition, it is easier to assemble each device than the individual components on the front frame 6 on the cabin side of the cabin 2 at the time of production, and the support member 50 or Since each apparatus, such as the air conditioner 1, the operation unit 51, and the audio equipment 52, can be individually replaced, it is possible to respond quickly. Note that the lower surface of the air suction portion 2 of the front frame 6 and the indoor upper surface of the cabin 3 are covered with a resinous cover 34.
[0012]
The door 3 of the cabin 3 is provided with a door frame 55 conforming to the shape of the front strut 22, floor 18, fender 19, rear strut 23, and lateral frame 26, and hinges 57 and 57 at two upper and lower positions of the rear strut 23. The door knob 58 can be opened and closed. The door frame 55 has a configuration in which door glasses 56 and 56 are fitted vertically.
[0013]
Explaining the shortcomings of the conventional cabin air conditioner mounting structure, the upper frame described above is a structure in which large-diameter frame members are connected, and these cross-sections are members having a box-like thickness. . Therefore, in order to provide the air suction portion of the air conditioner outside the room, it is necessary to attach the air conditioner above the upper frame or below the upper frame. In the former case, it is necessary to increase the height of the roof by the thickness of the air conditioner, and in the latter case, the ceiling of the cabin interior is lowered, which causes an inconvenience that hinders the operator's view. When the air conditioner is to be mounted on the same height as the upper frame as in the present invention, the shape of the air suction portion must be a complicated shape that bypasses the upper frame.
[0014]
By providing the plate-like front frame 6 in which the partition plate 5 having the notches 7 is erected as in the present invention, the cabin interior can be widely used without increasing the height of the roof. In addition, although explanation is omitted, it is conceivable that the air conditioner 1 is attached to the rear upper part of the cabin as another embodiment. In this case, the entire air conditioner 1 is installed in the cabin 3 as compared with the operator. It has the effect of expanding the room without disturbing the overhead.
[0015]
Note that the present invention can be applied to general vehicles equipped with cabins.
[0016]
【The invention's effect】
As described above, the cabin air conditioner mounting structure of the present invention includes a pair of front struts 22 and 22 and a pair of rear struts 23 and 23, and horizontal frames 4 and 4 that connect the upper ends of the front and rear struts 22 and 23. The air conditioner 1 is attached to the upper part of the cabin 3 having the plate-like front frame 6, the heat exchange unit 43 is located in the front of the air conditioner 1, and the cabin 3 is located in the rear of the air conditioner 1. the exhaust air portion 45 having a wind direction guide 44 for guiding the wind direction is provided, and further provided with air intake portion 2 at one end of the front outer portion of the air conditioning apparatus 1, the air intake portion 2 of the air conditioner 1 cabin 3 A partition plate that protrudes outside the upper room and attaches the other end of the air conditioner 1 to the upper room of the cabin 3, and has a notch 7 in the center between the horizontal frames 4 and 4. 5 is placed over the front frame 6 An outer wall surface between the air suction unit 2 and the other end of the air conditioner 1 is engaged with the notch 7 of the partition plate 5 to partition the interior of the cabin 3 from the outdoor, and is provided on the bottom surface of the heat exchange unit 43. The drainage pipe 49 connected to the drainage grooves 47 and 48 is opened to the outside of the cabin 3 through the front strut 22, and the pair of front struts 22 and 22 and the pair of rear struts 23 and 23. The air conditioner 1 is attached to the upper part of the cabin 3 having the horizontal frames 4 and 4 connecting the upper ends of the front and rear columns 22 and 23 and the plate-like front frame 6. (3) A wind exhaust section 45 having a wind direction guide 44 for guiding the wind direction into the room, a heat exchanging section 43 is provided at the rear inside the air conditioner 1, and a suction portion is provided at one end outside the rear of the air conditioner 1. A wind part 2 is provided, and the air suction part 2 of the air conditioner 1 is The outside of the bin 3 protrudes outside and the other end of the air conditioner 1 is attached to the inside of the cabin 3 and has a notch 7 in the center between the horizontal frames 4 and 4. The front frame 6 on which the partition plate 5 is erected is spanned, and the outer wall surface between the air suction unit 2 and the other end of the air conditioner 1 is engaged with the notch 7 of the partition plate 5 to The interior and the exterior are partitioned off, and drainage pipes 49 connected to drainage grooves 47 and 48 provided on the bottom surface of the heat exchanging portion 43 are opened to the outside of the cabin 3 through the front strut 22 . Therefore, the space for installing the air suction portion 2 is outside the cabin 3 and the upper front-rear direction inside the cabin 3 can be widely used. Further, by providing a plate-like front frame 6 provided with a partition plate 5 having a notch 7 as an attachment portion of the air conditioner 1, the roof height is not increased and the thickness in the vertical direction is reduced. Similarly, the cabin 3 can be used widely.
Furthermore, it is easier to assemble each device than the individual components on the front frame 6 on the indoor side of the cabin 3 at the time of production. Since each device can be replaced individually, it is possible to respond quickly.
Further, the wind direction into the cabin 3 can be guided by the wind direction guide 44 provided at the rear inside the air conditioner 1. Also since the drain pipe 49 is open to the outside of the cabin 3 through the said front strut 22 and cut at widely indoor cabin 3.
[Brief description of the drawings]
FIG. 1 is a side view after an air conditioner is installed.
FIG. 2 is an overall side view of the tractor.
FIG. 3 is a diagram showing a positional relationship between each frame of the cabin and the air conditioner.
FIG. 4 is an attachment diagram of an air conditioner and a support member.
FIG. 5 is a top view when the support member and the cabin are attached.
FIG. 6 is a rear cross-sectional view when the support member and the cabin are attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Air intake part 3 Cabin 4 Horizontal frame 5 Partition plate 6 Front frame 7 Notch 16 Windshield 22 Front support 32 Roof

Claims

Air conditioning in the upper part of the cabin 3 having a pair of front struts 22 and 22 and a pair of rear struts 23 and 23, horizontal frames 4 and 4 connecting upper ends of the front and rear struts 22 and 23, and a plate-like front frame 6 Install device 1,
A heat exchanging unit 43 is provided in front of the air conditioner 1, and an air exhaust unit 45 having a wind direction guide 44 for guiding the direction of wind into the cabin 3 is provided in the rear of the air conditioner 1. provided air intake portion 2 at one end of the front outer portion of 1,
The air intake portion 2 of the air conditioner 1 projects outside the cabin above the cabin 3, and the other end of the air conditioner 1 is attached to the cabin above the cabin 3, between the horizontal frames 4, 4. The front frame 6 in which the partition plate 5 having the notch 7 at the center is erected is spanned, and the notch 7 of the partition plate 5 is placed between the air suction unit 2 and the other end of the air conditioner 1. A drainage pipe 49 connected to drainage grooves 47 and 48 provided on the bottom surface of the heat exchanging portion 43 passes through the front strut 22 to partition the cabin 3 from the interior of the cabin 3 and the outside by engaging the wall surface. An air conditioner mounting structure for a cabin that is open to the outside of the cabin.

Air conditioning in the upper part of the cabin 3 having a pair of front struts 22 and 22 and a pair of rear struts 23 and 23, horizontal frames 4 and 4 connecting upper ends of the front and rear struts 22 and 23, and a plate-like front frame 6 Install device 1,
An air exhaust unit 45 having a wind direction guide 44 for guiding the air direction into the cabin 3 is provided in the front of the air conditioner 1 , and a heat exchange unit 43 is provided in the rear of the air conditioner 1. provided air intake portion 2 at one end of the Hogaibu after 1,
The air intake portion 2 of the air conditioner 1 projects outside the cabin above the cabin 3, and the other end of the air conditioner 1 is attached to the cabin above the cabin 3, between the horizontal frames 4, 4. The front frame 6 in which the partition plate 5 having the notch 7 at the center is erected is spanned, and the notch 7 of the partition plate 5 is placed between the air suction unit 2 and the other end of the air conditioner 1. A drainage pipe 49 connected to drainage grooves 47 and 48 provided on the bottom surface of the heat exchanging portion 43 passes through the front strut 22 to partition the cabin 3 from the interior of the cabin 3 and the outside by engaging the wall surface. An air conditioner mounting structure for a cabin that is open to the outside of the cabin.