JPH07394Y2 - Aerial work vehicle - Google Patents
Aerial work vehicleInfo
- Publication number
- JPH07394Y2 JPH07394Y2 JP1988002177U JP217788U JPH07394Y2 JP H07394 Y2 JPH07394 Y2 JP H07394Y2 JP 1988002177 U JP1988002177 U JP 1988002177U JP 217788 U JP217788 U JP 217788U JP H07394 Y2 JPH07394 Y2 JP H07394Y2
- Authority
- JP
- Japan
- Prior art keywords
- crawler traveling
- work vehicle
- traveling devices
- boom
- aerial work
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Harvesting Machines For Specific Crops (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、駆動状態と停止状態とに各別に切換操作自在
な左右一対のクローラ走行装置と、該クローラ走行装置
に対して車体前後方向に離れた箇所に配置されるキャス
ターと、作業車搭乗部を先端部に備えた起伏揺動自在な
ブームとを車体フレームに設けた高所作業車に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pair of left and right crawler traveling devices that can be selectively switched between a driven state and a stopped state, and a vehicle front-rear direction with respect to the crawler traveling devices. The present invention relates to an aerial work vehicle in which a caster arranged at a distant place and a boom having a work vehicle boarding portion at its tip end and capable of swinging up and down are provided in a vehicle body frame.
かかる高所作業車は、クローラ走行装置とキャスターと
により、車体前後方向に離れた箇所を支持させて、例え
ば実開昭60-187199号公報に開示されたもののように、
単にクローラ走行装置のみで車体の地面に対する走行可
能な支持を行うものと比較して、車体の安定性を図れる
利点があり、しかも、左右のクローラの片側を駆動させ
ながら急旋回をも良好に行なえるようにしたものであ
る。Such an aerial work vehicle, by a crawler traveling device and casters, to support a position separated in the vehicle front-rear direction, for example, as disclosed in Japanese Utility Model Laid-Open No. 60-187199,
Compared with the case where the crawler traveling device is used to support the vehicle to travel on the ground, it has the advantage of stabilizing the vehicle body, and also makes it possible to make sharp turns while driving one side of the left and right crawlers. It was done so.
ところで、従来では、左右のクローラ走行装置の夫々
が、車体に対して相対的に変位しないよう固定状態に取
付けられていた。By the way, conventionally, the left and right crawler traveling devices are mounted in a fixed state so as not to be displaced relative to the vehicle body.
ところで、かかる高所作業車は、クローラ走行装置で大
きな推進力に得ることができるものであり、傾斜地をも
良好に走行できるものであるが、傾斜地を登り始める際
や登り終りの際に、次に述べる不都合があった。By the way, such an aerial work vehicle can be obtained with a large propulsive force by a crawler traveling device and can travel well on a sloping ground, but when starting or finishing climbing a sloping ground, There was a problem described in.
すなわち、クローラ走行装置を進行方向前方に位置させ
て走行しながら、傾斜地を登り始めた際に、クローラ走
行装置の下端側設置部のうちの前端部のみしか接地しな
い状態となり、このため、充分な推進力が得られないも
のとなって、登り走行を所望通り行なえない虞れがあっ
た。特に、雪上や軟弱地では、クローラ走行装置の先端
が雪の中や地中に入り込むものとなり、上記不都合が顕
著となる。That is, when the crawler traveling device is positioned forward in the traveling direction and starts to climb on a sloping ground, only the front end of the lower end side installation portion of the crawler traveling device is in contact with the ground. There is a possibility that the propulsive force cannot be obtained, and the climbing traveling cannot be performed as desired. In particular, on snow or on soft ground, the tip of the crawler traveling device enters the snow or the ground, and the above inconvenience becomes remarkable.
又、傾斜地を登り終る際には、クローラ走行装置の下端
側接地部のうちの後端部のみしか接地しない状態とな
り、この場合にも、登り走行を所望通り行なえない虞れ
があった。Further, when finishing climbing up the sloping ground, only the rear end portion of the lower end side grounding portion of the crawler traveling device is in contact with the ground, and in this case as well, there is a possibility that the climbing traveling cannot be performed as desired.
本考案は、上記実状に鑑みて為されたものであって、そ
の目的は、傾斜地での走行性を向上できる高所作業車を
提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide an aerial work vehicle that can improve the traveling performance on a sloping ground.
本考案にかかる高所作業車は、上記目的を達成するため
に、駆動状態と停止状態とに各別に切換操作自在な左右
一対のクローラ走行装置と、該クローラ走行装置に対し
て車体前後方向に離れた箇所に配置されるキャスター
と、作業車搭乗部を先端部に備えた起伏揺動自在なブー
ムとを車体フレームに設けた高所作業車であって、前記
各クローラ走行装置の夫々を、該クローラ走行装置の前
後方向中間部の横軸芯周りで上下揺動自在に、前記車体
フレームの前後方向の一端側に取付けるとともに、前記
車体フレームの他端側に、前記ブームの起伏揺動用の枢
支部を設け、さらに、前記ブームの先端部を前記クロー
ラ走行装置を設けたがわの機体端部側に延長してあるこ
とを特徴構成とする。In order to achieve the above object, an aerial work vehicle according to the present invention comprises a pair of left and right crawler traveling devices that can be selectively switched between a driving state and a stopped state, and a vehicle front-rear direction with respect to the crawler traveling devices. A caster arranged at a distant place, and an aerial work vehicle provided with a boom capable of undulating and swinging equipped with a work vehicle riding section at its tip end in a body frame, each of the crawler traveling devices being The crawler traveling device is mounted on one end side in the front-rear direction of the body frame so as to be vertically swingable around a horizontal axis at an intermediate portion in the front-rear direction, and is mounted on the other end side of the body frame for raising and lowering the boom. A pivotal support portion is provided, and further, a tip end portion of the boom is extended to an end portion side of the body of the saw provided with the crawler traveling device.
かかる特徴構成による作用及び効果は次の通りである。The operation and effect of this characteristic configuration are as follows.
すなわち、左右のクローラ走行装置の夫々は、その下端
側接地部の全体が接地するように、地面に合わせて上下
揺動することになる。ちなみに、クローラ走行装置にお
ける前後方向中間部の横軸芯周りでの上下揺動であるか
ら、上下揺動できるものの、下端側接地部の全体が車体
重量によって地面側に押え付けられることになるととも
に、クローラ走行装置を車体フレームの端部に設けてあ
るので、クローラ走行装置の上下揺動が車体フレーム等
で妨げられにくいことから、その上下揺動可能範囲を大
きくとることが可能であり、かつ、ブームに対しては前
記クローラ走行装置の上下揺動時にそのクローラ走行装
置が接当することがないように、又、作業車搭乗部が傾
斜地に衝突しないように、必要に応じてブームを起伏調
節できる。That is, each of the left and right crawler traveling devices swings up and down according to the ground so that the entire lower end side grounding portion is grounded. By the way, since it is a vertical swing around the horizontal axis of the middle portion in the front-rear direction of the crawler traveling device, it can swing up and down, but the entire lower end side grounding portion is pressed to the ground side due to the weight of the vehicle body. Since the crawler traveling device is provided at the end portion of the vehicle body frame, the vertical swing of the crawler traveling device is unlikely to be hindered by the vehicle body frame or the like, so that the vertical swingable range can be made large, and , The boom is raised and lowered as necessary so that the crawler traveling device does not come into contact with the boom when the crawler traveling device swings up and down, and the work vehicle riding part does not collide with a slope. Can be adjusted.
これにより、傾斜地を登り始める際にも、クローラ走行
装置の下端側接地部の全体が接地し易いものとなり(第
8図参照)、又、傾斜地を登り終る際にも、クローラ走
行装置の下端側接地部の全体が接地し易いものとなり、
いずれにおいても、クローラ走行装置によって充分な推
進力を得られるものとなる。As a result, even when starting to climb a sloping ground, the entire lower end side grounding portion of the crawler traveling device is easily grounded (see FIG. 8), and when the climbing on a sloping ground is completed, the lower end side of the crawler traveling device is also contacted. The whole grounding part will be easy to ground,
In either case, the crawler traveling device can obtain a sufficient propulsive force.
従って、傾斜地を登り始める際や登り終る際において
も、充分な推進力を得ながら適切に走行させることがで
きるのであり、もって、傾斜地の走行を良好に行なえる
ようになった。Therefore, when starting or finishing climbing up the sloping ground, it is possible to appropriately travel while obtaining sufficient propulsive force, and thus it becomes possible to perform good traveling on the sloping ground.
以下、本考案の実施例を、収穫作業や薬剤塗布、剪定、
摘花等の育成管理作業に使用する高所作業車について図
面に基づいて説明する。Examples of the present invention will be described below for harvesting work, chemical application, pruning,
An aerial work vehicle used for raising and managing work such as flower picking will be described with reference to the drawings.
第1図に示すように、高所作業車は、走行車体(V)
と、昇降並びに旋回操作される平行四連リンク式のブー
ム(2)と、そのブーム(2)の先端部の作業車搭乗部
としての搭乗バケット(3)とを備えている。As shown in FIG. 1, an aerial work vehicle is a traveling vehicle (V).
And a parallel quadruple link type boom (2) that is operated to move up and down and turn, and a boarding bucket (3) as a work vehicle boarding section at the tip of the boom (2).
前記走行車体(V)の前端部と後端部とには、それぞ
れ、左右一対のクローラ走行装置(4L),(4R)と、左
右一対のキャスター(5)とが振り分けられて設けられ
ている。A pair of left and right crawler traveling devices (4L) and (4R) and a pair of left and right casters (5) are provided separately at the front end and the rear end of the traveling vehicle body (V), respectively. .
以下に、左右のクローラ走行装置(4L),(4R)への伝
動構造について、第4図に基づいて説明する。The transmission structure to the left and right crawler traveling devices (4L) and (4R) will be described below with reference to FIG.
前記走行車体(V)の後端側に搭載したエンジン(E)
とそれの前方側に配置した中継伝動軸(6)とが、伝動
ベルト(7)を介して連動連結され、中継伝動軸(6)
の前方側箇所に、左側クローラ走行装置(4L)に対する
前後進切換用ギヤ伝動装置を収納する左側伝動ケース
(8L)、及び右側クローラ走行装置(4R)に対する前後
進切換用ギヤ伝動装置を収納する右側伝動ケース(8R)
の夫々が設けられ、それら伝動ケース(8L),(8R)と
前記中継伝動軸(6)とが、左側の伝動クラッチ(Lc)
及び右側の伝動クラッチ(Rc)を介して各別に連動連結
され、前記両伝動ケース(8L),(8R)夫々の出力軸
(13L),(13R)と、左右のクローラ走行装置(4L),
(4R)の駆動軸(20L),(20R)とが伝動チェーン(14
L),(14R)を介して各別に連動連結されている。Engine (E) mounted on the rear end side of the traveling vehicle (V)
And the relay transmission shaft (6) arranged on the front side of the relay transmission shaft (6) are interlockingly connected via a transmission belt (7), and the relay transmission shaft (6)
At the front side of the, the left transmission case (8L) for storing the forward / reverse switching gear transmission for the left crawler traveling device (4L) and the forward / reverse switching gear transmission for the right crawler traveling device (4R) are stored. Right transmission case (8R)
Are provided, and the transmission cases (8L) and (8R) and the relay transmission shaft (6) are connected to the left transmission clutch (Lc).
And the transmission clutches (Rc) on the right side, respectively, which are separately interlocked and coupled, and the output shafts (13L) and (13R) of the transmission cases (8L) and (8R), and the left and right crawler traveling devices (4L),
(4R) drive shaft (20L), (20R) and transmission chain (14R)
L) and (14R) are connected separately.
前記両伝動クラッチ(Lc),(Rc)の夫々は、両伝動ケ
ース(8L),(8R)の夫々に支承した前進用入力軸(9
L),(9R)と中継伝動軸(6)との間に介装されるベ
ルトテンション式の前進用伝動クラッチ(11L),(11
R)、及び、両伝動ケース(8L),(8R)夫々に支承し
た後進用入力軸(10L),(10R)と中継伝動軸(6)と
の間に介装されるベルトテンション式の後進用伝動クラ
ッチ(12L),(12R)を備えている。Each of the transmission clutches (Lc) and (Rc) has a forward input shaft (9) supported by each of the transmission cases (8L) and (8R).
L), (9R) and a relay transmission shaft (6) interposed between belt tension type forward transmission clutches (11L), (11)
R) and the rear transmission input shafts (10L) and (10R) supported by the transmission cases (8L) and (8R) respectively, and the belt tension type rearward movement interposed between the relay transmission shaft (6). Equipped with power transmission clutches (12L), (12R).
前記前後進切換用ギヤ伝動装置について説明する。尚、
左右の前後進切換用ギヤ伝動装置は同様に構成されるも
のであって、以下左側の前後進切換用ギヤ伝動装置につ
いて説明する。The forward / reverse switching gear transmission will be described. still,
The left and right forward-reverse switching gear transmissions have the same structure, and the left-side forward-reverse switching gear transmission will be described below.
すなわち、前進用入力軸(9L)に固着した第1ギヤ(1
6)と後進用入力軸(10L)に固着した第2ギヤ(17)と
を咬合連動させると共に、後進用入力軸(10L)に固着
した第3ギヤ(18)と出力軸(13L)に固着した第4ギ
ヤ(19)とを咬合連動させて、前進用伝動クラッチ(11
L)の入り時には後進用伝動クラッチ(12L)が切り状態
になることを利用して、前進用入力軸(9L)の動力を後
進用入力軸(10L)に一旦伝動させてから出力軸(13L)
に伝動させることにより、正逆転を切換えるように構成
してある。That is, the first gear (1
6) and the second gear (17) fixed to the reverse input shaft (10L) are interlocked with each other and fixed to the third gear (18) fixed to the reverse input shaft (10L) and the output shaft (13L) The forward transmission clutch (11
L) When the reverse transmission clutch (12L) is disengaged when engaged, the power of the forward input shaft (9L) is first transmitted to the reverse input shaft (10L) and then the output shaft (13L). )
It is configured to switch between forward and reverse rotation by transmitting to.
但し、図中(U)は、前記ブーム操作用の油圧ユニット
であり、前記中継伝動軸(6)に伝動ベルト(15)を用
いて連動連結されている。However, (U) in the figure is the hydraulic unit for operating the boom, which is interlockingly connected to the relay transmission shaft (6) using a transmission belt (15).
前記4つの伝動クラッチ(11L),(11R),(12L),
(12R)は、例示はしないが、各クラッチ夫々に対応し
て設けたクラッチシリンダで入り操作されるものであ
り、そして、各クラッチシリンダに対するマスタシリン
ダが、前記搭乗バケット(3)に配備されると共に、搭
乗バケット(3)には、第1図に示すように、左右一対
の走行操作レバー(21L),(21R)が、各クラッチシリ
ンダを操作するように設けられている。つまり、左側の
走行操作レバー(21L)は左側のクローラ走行装置(4
L)に対応し、右側の走行操作レバー(21R)は右側のク
ローラ走行装置(4R)に対応するものであって、そし
て、各レバー(21L),(21R)は、中立位置からの前方
への揺動に伴って前進状態に、且つ、後方への揺動に伴
って後進状態に切換えるように、各マスタシリンダに連
動連結されている。The four transmission clutches (11L), (11R), (12L),
Although not illustrated, (12R) is operated by a clutch cylinder provided corresponding to each clutch, and a master cylinder for each clutch cylinder is provided in the riding bucket (3). At the same time, as shown in FIG. 1, the boarding bucket (3) is provided with a pair of left and right traveling operation levers (21L), (21R) for operating each clutch cylinder. In other words, the left travel control lever (21L) is the left crawler travel device (4L).
L), the right travel control lever (21R) corresponds to the right crawler travel device (4R), and each lever (21L), (21R) moves forward from the neutral position. The master cylinders are interlocked with each other so that the master cylinder can be switched to the forward state with the swinging of the master cylinder and to the reverse state with the rearward swing.
前記左右のクローラ走行装置(4L),(4R)について右
側を代表にして説明すると、第2図及び第3図にも示す
ように、前記駆動軸(20R)にピン(21)によって固定
される駆動スプロケット(22)と、その駆動スプロケッ
ト(22)が係合するクローラ(23)と、そのクローラ
(23)の接地部を案内する4つの転輪(24A),(24
B),(24B),(24C)と、それら転輪夫々を支持する
クローラフレーム(25)とを備えている。The right and left crawler traveling devices (4L) and (4R) will be described by taking the right side as a representative, and as shown in FIGS. 2 and 3, they are fixed to the drive shaft (20R) by pins (21). The drive sprocket (22), the crawler (23) with which the drive sprocket (22) engages, and the four rolling wheels (24A), (24) for guiding the ground portion of the crawler (23).
B), (24B), (24C), and a crawler frame (25) that supports each of the wheels.
前記クローラクレーム(25)の上方突出部(25a)が、
走行車体(V)の駆動軸支承用の筒状ケース(26)に、
駆動軸(20R)の軸芯(P)周りで回転自在にベアリン
グを用いて外嵌着されており、もって、左右のクローラ
走行装置(4L),(4R)夫々は、これらクローラ走行装
置(4L),(4R)における前後方向中間部の横軸芯周り
で上下揺動できるようになっている。The upward protrusion (25a) of the crawler claim (25) is
In the cylindrical case (26) for supporting the drive shaft of the traveling vehicle (V),
The drive shaft (20R) is rotatably fitted around the shaft center (P) using a bearing, so that the left and right crawler traveling devices (4L) and (4R) are respectively attached to the crawler traveling devices (4L). ), (4R), it is possible to swing up and down around the horizontal axis in the middle part in the front-rear direction.
尚、前記4つの転輪(24A),(24B),(24B),(24
C)のうち、前端の転輪(24A)は、大径の外転輪型式に
構成され、中間の2つの転輪(24B)は、小径の外転輪
型式に構成され、後輪の転輪(24C)は、内転輪型式に
構成されている。又、後端の転輪(24C)は、テンショ
ン調節のために、前後方向に位置調節されるようになっ
ている。The four wheels (24A), (24B), (24B), (24
In C), the front end rolling wheel (24A) is configured as a large diameter outer wheel type, and the middle two rolling wheels (24B) is configured as a small diameter outer wheel type, and the rear wheel rolling The wheel (24C) is of inner wheel type. Further, the rear wheel (24C) is adjusted in position in the front-rear direction for tension adjustment.
前記走行車体(V)は、パイプ材を枠組みした車体フレ
ーム(F)を備えるものであって、その車体フレーム
(F)の後端部に、ブーム取付部(F1)が上方に突出す
る状態で設けられている。The traveling vehicle body (V) includes a vehicle body frame (F) in which a pipe material is used as a frame, and a boom attachment portion (F 1 ) projects upward from a rear end portion of the vehicle body frame (F). It is provided in.
そして、前記ブーム取付部(F1)に、ブーム(2)の上
方アーム(2A)と下方アーム(2B)との夫々が、上下揺
動及び左右揺動自在に取付けられている。すなわち、第
5図及び第6図に示すように、下方アーム(2B)の後端
部に、上下一対の板状連結部(27)が設けられ、それら
板状連結部(27)に止差した一対の第1連結ピン(28)
が、十字状継手(29)の上下の筒部(29a),(29a)に
回転自在に挿嵌されている。ブーム取付部(F1)の左右
のボス部(30)に止着した一対の第2連結ピン(31),
(31)が、十字状継手(29)の左右の筒部(29b),(2
9b)に回転自在に挿嵌されている。The upper arm (2A) and the lower arm (2B) of the boom (2) are attached to the boom attachment portion (F 1 ) so as to be vertically swingable and horizontally swingable. That is, as shown in FIG. 5 and FIG. 6, a pair of upper and lower plate-like connecting portions (27) are provided at the rear end of the lower arm (2B), and the plate-like connecting portions (27) are fitted with stoppers. Pair of first connecting pins (28)
Are rotatably fitted in the upper and lower cylindrical portions (29a) and (29a) of the cross joint (29). A pair of second connecting pins (31) fixed to the left and right boss parts (30) of the boom mounting part (F 1 ),
(31) is the left and right cylinders (29b), (2) of the cross joint (29).
It is rotatably inserted in 9b).
又、上方のアーム(2A)は、記述はしないが、下方アー
ム(2B)と同様に十字状継手を用いて取付られている。Further, although not described, the upper arm (2A) is attached by using a cross joint like the lower arm (2B).
尚、図中、(32)は、下方アーム(2B)と車体フレーム
(F)との間に介装されたブーム昇降用シリンダであ
る。(33)は、ブーム昇降用シリンダ(32)を係止する
U字状枠(34)を移動操作するブーム揺動用シリンダで
あって、第7図に示すように、ピストンロッド(33a)
を、車体フレーム(F)に付設のブラケット(35)に取
付け、且つ、U字状枠(34)をシリンダチューブ(33
b)に支持するようになっている。ちなみに、例示はし
ないが、各シリンダ(32),(33)の操作具が、搭乗バ
ケット(3)に備えられ、その操作具と前記油圧ユニッ
ト(U)とが、下方アーム(2B)内を通して配線される
レリーズワイヤで連結されている。In the figure, (32) is a boom lifting cylinder interposed between the lower arm (2B) and the vehicle body frame (F). Reference numeral (33) is a boom swing cylinder that moves and operates a U-shaped frame (34) that locks the boom lift cylinder (32), and as shown in FIG. 7, a piston rod (33a).
Is attached to a bracket (35) attached to the body frame (F), and the U-shaped frame (34) is attached to the cylinder tube (33).
It is designed to support b). By the way, although not illustrated, the operation tools of the cylinders (32) and (33) are provided in the boarding bucket (3), and the operation tools and the hydraulic unit (U) pass through the inside of the lower arm (2B). It is connected by a release wire that is wired.
尚、実用新案登録請求の範囲の項に図面と対照を便利に
する為に符号を記すが、該記入により本考案は添付図面
の構造に限定されるものではない。In the claims of the utility model, reference numerals are given for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.
図面は本考案に係る高所作業車の実施例を示し、第1図
は高所作業車の側面図、第2図はクローラ走行装置の側
面図、第3図は同切欠き正面図、第4図は伝動系を示す
概略図、第5図はブーム取付構造の一部切欠き平面図、
第6図は同一部切欠き側面図、第7図は旋回用シリンダ
装着部の一部切欠き平面図、第8図は登坂状態の概略側
面図である。 (3)……作業車搭乗部、(4L),(4R)……クローラ
走行装置、(5)……接地体、(F)……車体フレー
ム、(P)……横軸芯。The drawings show an embodiment of an aerial work vehicle according to the present invention. FIG. 1 is a side view of the aerial work vehicle, FIG. 2 is a side view of a crawler traveling device, and FIG. 3 is a front view of the notch. 4 is a schematic view showing the transmission system, FIG. 5 is a partially cutaway plan view of the boom mounting structure,
FIG. 6 is a cutaway side view of the same portion, FIG. 7 is a partially cutaway plan view of the turning cylinder mounting portion, and FIG. 8 is a schematic side view in a climbing state. (3) …… Work vehicle riding section, (4L), (4R) …… Crawler traveling device, (5) …… Grounding body, (F) …… Body frame, (P) …… Horizontal axis core.
Claims (2)
在な左右一対のクローラ走行装置(4L),(4R)と、該
クローラ走行装置(4L),(4R)に対して車体前後方向
に離れた箇所に配置されるキャスター(5)と、作業車
搭乗部(3)を先端部に備えた起伏揺動自在なブーム
(2)とを車体フレーム(F)に設けた高所作業車であ
って、前記各クローラ走行装置(4L),(4R)の夫々
を、該クローラ走行装置(4L),(4R)の前後方向中間
部の横軸芯(P)周りで上下揺動自在に、前記車体フレ
ーム(F)の前後方向の一端側に取付けるとともに、前
記車体フレーム(F)の他端側に、前記ブーム(2)の
起伏揺動用の枢支部を設け、さらに、前記ブーム(2)
の先端部を前記クローラ走行装置(4L),(4R)を設け
たがわの機体端部側に延長してある高所作業車。1. A pair of left and right crawler traveling devices (4L) and (4R) which can be switched between a driving state and a stopped state separately, and a longitudinal direction of the vehicle with respect to the crawler traveling devices (4L) and (4R). Aerial work vehicle in which a caster (5) disposed at a distance from the vehicle body and a boom (2) having a work vehicle boarding portion (3) at its tip end and capable of swinging up and down are provided in a vehicle body frame (F). And each of the crawler traveling devices (4L), (4R) can be vertically swung about a horizontal axis (P) at an intermediate portion in the front-rear direction of the crawler traveling devices (4L), (4R). The boom (2) is attached to one end side of the body frame (F) in the front-rear direction, and the other end side of the body frame (F) is provided with a pivotal support portion for undulating and swinging the boom (2). )
An aerial work vehicle having the crawler traveling devices (4L) and (4R) provided at its tip end and extended to the end of the machine body.
(4R)の夫々が、前進状態と後進状態とに切換操作自在
に構成されている請求項1記載の高所作業車。2. The pair of left and right crawler traveling devices (4L),
The aerial work vehicle according to claim 1, wherein each of the (4R) is configured to be switchable between a forward drive state and a reverse drive state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988002177U JPH07394Y2 (en) | 1988-01-11 | 1988-01-11 | Aerial work vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988002177U JPH07394Y2 (en) | 1988-01-11 | 1988-01-11 | Aerial work vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01106378U JPH01106378U (en) | 1989-07-18 |
JPH07394Y2 true JPH07394Y2 (en) | 1995-01-11 |
Family
ID=31202722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988002177U Expired - Lifetime JPH07394Y2 (en) | 1988-01-11 | 1988-01-11 | Aerial work vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07394Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009073351A (en) * | 2007-09-20 | 2009-04-09 | Mitsubishi Agricult Mach Co Ltd | Working vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5374177B2 (en) * | 2009-02-13 | 2013-12-25 | ヤンマー株式会社 | Semi-crawler type work vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4320565Y1 (en) * | 1964-05-28 | 1968-08-30 | ||
JPS5892183U (en) * | 1981-12-17 | 1983-06-22 | ヤンマー農機株式会社 | Combine traveling device |
JPS5998741U (en) * | 1982-12-23 | 1984-07-04 | 株式会社クボタ | combine |
JPS59192097U (en) * | 1983-06-07 | 1984-12-20 | 株式会社豊田自動織機製作所 | Sub-lifting device for work platform in aerial work vehicle |
JPS60187199U (en) * | 1984-05-23 | 1985-12-11 | 新明和工業株式会社 | Remote control device for aerial work vehicles |
-
1988
- 1988-01-11 JP JP1988002177U patent/JPH07394Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009073351A (en) * | 2007-09-20 | 2009-04-09 | Mitsubishi Agricult Mach Co Ltd | Working vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPH01106378U (en) | 1989-07-18 |
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