JPH0718717Y2 - Aerial work vehicle - Google Patents
Aerial work vehicleInfo
- Publication number
- JPH0718717Y2 JPH0718717Y2 JP12597989U JP12597989U JPH0718717Y2 JP H0718717 Y2 JPH0718717 Y2 JP H0718717Y2 JP 12597989 U JP12597989 U JP 12597989U JP 12597989 U JP12597989 U JP 12597989U JP H0718717 Y2 JPH0718717 Y2 JP H0718717Y2
- Authority
- JP
- Japan
- Prior art keywords
- bucket
- support shaft
- vertical support
- work vehicle
- rotary joint
- 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)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） この考案は、高所作業車の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of an aerial work vehicle.
（従来の技術） 第１図に示す如く、起伏自在なブーム１の先端に常に鉛
直姿勢を維持するよう立設した鉛直支軸２に、旋回自在
に外嵌した外嵌部３を有するバケット支持具４を介して
バケット５を取り付けると共に、前記バケット支持具４
と鉛直支軸２間にバケット支持具４に設けた油圧モータ
６により駆動される旋回駆動装置７を取り付けてなる高
所作業車は、既に知られている。(Prior Art) As shown in FIG. 1, a bucket support having an outer fitting portion 3 rotatably fitted on a vertical support shaft 2 erected at the tip of a boom 1 which can be raised and lowered so as to always maintain a vertical posture. The bucket 5 is attached via the tool 4, and the bucket support tool 4
An aerial work vehicle in which a swing drive device 7 driven by a hydraulic motor 6 provided in a bucket support 4 is mounted between the vertical support shaft 2 and the vertical support shaft 2 is already known.
この種の高所作業車において、油圧モータ６へのブーム
１の先端側からの駆動油圧の供給は、ブーム１の先端部
からルーズな油圧ホース８、９（バケット支持具４の所
定範囲内の旋回動を許容するため）を介して前記バケッ
ト支持具４またはこのバケット支持具４に取り付けられ
バケット５に設けた油圧制御装置10に導き、この油圧制
御装置10の制御油で以て前記油圧モータ６を駆動するよ
う構成している。In this type of aerial work vehicle, the drive hydraulic pressure is supplied to the hydraulic motor 6 from the tip end side of the boom 1, and the hydraulic hoses 8 and 9 loose within the predetermined range of the bucket supporter 4 are provided from the tip end portion of the boom 1. (To allow the swiveling motion) to guide to the bucket support 4 or a hydraulic control device 10 attached to the bucket support 4 and provided in the bucket 5, and the hydraulic motor is controlled by the control oil of the hydraulic control device 10. 6 is configured to be driven.
しかしながら、このように構成した高所作業車は、バケ
ット支持具４またはこのバケット支持具４に取り付けら
れたバケット５に設けた油圧制御装置10が、ルーズな油
圧ホース８、９を介してブーム１の先端側に連結されて
いるので、バケット支持具４の鉛直支軸２回りでの旋回
範囲が前記ルーズな油圧ホース８、９の長さによって制
約されると言う問題があった。However, in the aerial work vehicle configured as described above, the hydraulic control device 10 provided on the bucket support tool 4 or the bucket 5 attached to the bucket support tool 4 causes the boom 1 to move through the loose hydraulic hoses 8 and 9. Since it is connected to the tip end side of the above, there is a problem that the turning range of the bucket support 4 around the vertical support shaft 2 is restricted by the lengths of the loose hydraulic hoses 8 and 9.
この考案は、このような問題に対処し、バケット支持具
４の鉛直支軸２回りでの旋回範囲が何ら制約されること
のない高所作業車を提供することを目的とするものであ
る。The present invention addresses such a problem, and an object thereof is to provide an aerial work vehicle in which the turning range of the bucket support 4 around the vertical support shaft 2 is not restricted at all.
（問題点を解決するための手段） 上記問題点を解決するため、この考案の高所作業車は、
ブーム１側から前記バケット支持具４またはこのバケッ
ト支持具４に取り付けられたバケット５に設けた油圧制
御装置10への給排油路を、前記鉛直支軸２の軸心と同心
的に当該鉛直支軸２の外周に配置したロータリジョイン
トを介して構成しこの油圧制御装置10の制御油で以て前
記油圧モータ６を駆動するよう構成したのである。(Means for Solving Problems) In order to solve the above problems, the aerial work vehicle of the present invention is
An oil supply / discharge passage from the boom 1 side to the bucket support 4 or the hydraulic control device 10 provided in the bucket 5 attached to the bucket support 4 is concentric with the axis of the vertical support shaft 2 in the vertical direction. The rotary motor is arranged via the rotary joint arranged on the outer periphery of the support shaft 2, and the hydraulic motor 6 is driven by the control oil of the hydraulic control device 10.
（作用） 上記構成によれば、ブーム１側から前記バケット支持具
４またはこのバケット支持具４に取り付けられたバケッ
ト５に設けた油圧制御装置10への給排油路を、前記鉛直
支軸２の軸心と同心的に当該鉛直支軸２の外周に配置し
たロータリジョイントを介して構成し、前記油圧制御装
置10の制御油をバケット支持具４旋回用の油圧モータ６
へ給排するので、バケット支持具４を鉛直支軸２回りで
任意の方向に任意の量だけ旋回駆動することができるの
である。(Operation) According to the above configuration, the oil supply / discharge passage from the boom 1 side to the bucket support 4 or the hydraulic control device 10 provided in the bucket 5 attached to the bucket support 4 is connected to the vertical support shaft 2 Of the vertical support shaft 2 concentrically with the shaft center of the rotary support shaft 2 via a rotary joint.
Since the water is supplied to and discharged from the bucket supporter 4, it is possible to rotate the bucket support 4 around the vertical support shaft 2 in an arbitrary direction by an arbitrary amount.
（実施例） 次にこの考案の実施例を第２図および第３図に基づいて
説明する。この考案は、従来の高所作業車に比べ、ブー
ム先端側から油圧モータ６への油圧給排部分に特徴を有
するものであるから、第１図に示し従来技術として説明
した符号１〜7,10とその説明は、以下においてもそのま
ま援用する。(Embodiment) Next, an embodiment of the present invention will be described with reference to FIGS. Compared with the conventional aerial work vehicle, the present invention has a feature in the hydraulic pressure supply / discharge portion from the boom tip side to the hydraulic motor 6, so that the reference numerals 1 to 7 described in FIG. 10 and the description thereof are directly incorporated in the following.
（第一実施例） 第２図において、ブーム１側から前記バケット５に設け
た油圧制御装置10への給排油路は、前記鉛直支軸２の軸
心と同心的に当該鉛直支軸２の外周に配置したロータリ
ジョイント11を介して行うよう構成している。ロータリ
ジョイント11は、互いに相対的に回転する内部材11Aと
外部材11Bで構成されている。この例では、ロータリジ
ョイント11は、バケット支持具４の旋回駆動装置７の下
方位置において鉛直支軸２回りに当該鉛直支軸２と同心
的に設けられており、かつ前記内部材11Aが鉛直支軸２
で兼用されたものとなっている。ロータリジョイント11
の内部材11Aたる鉛直支軸２は、上下端が開口してお
り、前記内部材11A該当部分外周に上下に離隔して開口
した内部材11A側ポート12、13を備えている。ロータリ
ジョイント11の外部材11Bの内周面には、前記内部材11A
のポート12,13にそれぞれ連通する環状溝14,15およびこ
の環状溝14,15に連通する外部材11B側のポート16,17が
それぞれ設けられている。(First Embodiment) In FIG. 2, the oil supply / discharge passage from the boom 1 side to the hydraulic control device 10 provided in the bucket 5 is concentric with the axis of the vertical support shaft 2 and the vertical support shaft 2 is provided. It is configured to be performed via a rotary joint 11 arranged on the outer periphery of the. The rotary joint 11 is composed of an inner member 11A and an outer member 11B that rotate relative to each other. In this example, the rotary joint 11 is provided around the vertical support shaft 2 concentrically with the vertical support shaft 2 at a position below the swing drive device 7 of the bucket support tool 4, and the inner member 11A is vertically supported. Axis 2
It has been used for both. Rotary joint 11
The vertical support shaft 2, which is the inner member 11A, is open at the upper and lower ends, and is provided with inner member 11A side ports 12 and 13 that are opened vertically apart on the outer periphery of the inner member 11A corresponding portion. On the inner peripheral surface of the outer member 11B of the rotary joint 11, the inner member 11A
The annular grooves 14 and 15 communicating with the ports 12 and 13 and the ports 16 and 17 on the outer member 11B side communicating with the annular grooves 14 and 15 are provided, respectively.
18,19は、伸縮ブーム１先端とロータリジョイント11間
を接続する油路で、この油路18,19は、前記内部材11A側
ポート12,13へそれぞれその上端を溶接連結し、その下
端を鉛直支軸２下端開口付近に止着した金属配管18A,19
A、およびこれら金属配管18A,19Aの下端に連結した油圧
ホース18B,19Bとからなっている。Reference numerals 18 and 19 denote oil passages that connect the tip of the telescopic boom 1 and the rotary joint 11, and these oil passages 18 and 19 are welded and connected at their upper ends to the inner member 11A side ports 12 and 13, respectively, and at their lower ends. Metal pipes 18A, 19 fixed near the lower end opening of the vertical support shaft 2
A and hydraulic hoses 18B and 19B connected to the lower ends of these metal pipes 18A and 19A.
20,21は、ロータリジョイント11と油圧制御装置10間を
接続する油路で、金属配管または油圧ホースで構成され
ている。Numerals 20 and 21 are oil passages connecting the rotary joint 11 and the hydraulic control device 10, and are constituted by metal pipes or hydraulic hoses.
22は、外部材11Bとバケット支持具４間に取り付けら
れ、バケット支持具４の旋回に連動して外部材11Bを回
転させるための連動手段である。Reference numeral 22 denotes an interlocking device that is attached between the outer member 11B and the bucket support tool 4 and rotates the outer member 11B in conjunction with the turning of the bucket support tool 4.
尚、上記ロータリジョイント11は、バケット支持具４の
上側の鉛直支軸２外周に設けても良いこと勿論である。Of course, the rotary joint 11 may be provided on the outer circumference of the vertical support shaft 2 on the upper side of the bucket support tool 4.
（第二実施例） 上記実施例では、ロータリジョイント11の内部材11Aを
鉛直支軸２で兼用しており、これにより構造の簡略化を
図っているが、このロータリジョイント11は、第３図に
示すように構成してもよい。(Second Embodiment) In the above embodiment, the vertical support shaft 2 also serves as the inner member 11A of the rotary joint 11, which simplifies the structure. The rotary joint 11 shown in FIG. It may be configured as shown in.
即ち、第３図において、ロータリジョイント11の内部材
11Aを鉛直支軸２に回転不能に外嵌した円筒状部材で構
成してもよい。この場合、伸縮ブーム１先端側とロータ
リジョイント11間を接続する油路18,19は、図示の如く
油圧ホースで構成すればよい。この例では、伸縮ブーム
１先端側とロータリジョイント11間を接続する油路18,1
9は、伸縮ブーム１先端側から、鉛直支軸２下端開口、
鉛直支軸２内、鉛直支軸２の側壁に開口したホース通し
穴23,24を経由する油圧ホースでもって構成している。That is, in FIG. 3, the inner member of the rotary joint 11
11A may be formed of a cylindrical member that is fitted onto the vertical support shaft 2 so as not to rotate. In this case, the oil passages 18 and 19 connecting the tip end side of the telescopic boom 1 and the rotary joint 11 may be constituted by hydraulic hoses as illustrated. In this example, the oil passages 18,1 connecting the tip side of the telescopic boom 1 and the rotary joint 11 are connected.
9 is the telescopic boom 1 tip side, the vertical support shaft 2 lower end opening,
The vertical support shaft 2 is constituted by a hydraulic hose passing through hose passage holes 23, 24 opened in the side wall of the vertical support shaft 2.
この例の場合においても、上記ロータリジョイント11
は、バケット支持具４の上側の鉛直支軸２外周に設けて
も良いこと勿論である。Also in the case of this example, the rotary joint 11
Needless to say, it may be provided on the outer periphery of the vertical support shaft 2 above the bucket support 4.
上記各実施例において、伸縮ブーム１先端側からバケッ
ト支持具４側への送油は、ロータリジョイント11を介し
て行われるので、バケット支持部材４を自由に全旋回で
きるのである。In each of the above-described embodiments, since the oil is fed from the tip end side of the telescopic boom 1 to the bucket support tool 4 side through the rotary joint 11, the bucket support member 4 can be freely swiveled.
（効果） 以上の如く構成し作用するこの考案の高所作業車は，バ
ケット支持具４を鉛直支軸２回りで任意の方向に任意の
量だけ旋回駆動することができるので高所作業車の作業
能率を高めることができるのである。(Effects) The aerial work vehicle of the present invention configured and operated as described above can swing and drive the bucket support 4 around the vertical support shaft 2 in an arbitrary direction and by an arbitrary amount. The work efficiency can be improved.
第１図は、従来の高所作業車の説明図、第２〜３図は、
この考案の高所作業車の要部の説明図であって、第２図
はこの考案の高所作業車の一実施例の説明図、第３図は
他の実施例の説明図である。 1;伸縮ブーム,2;鉛直支軸,4;バケット支持具,5;バケッ
ト,6;油圧モータ,10;油圧制御装置,11;ロータリジョイ
ントFIG. 1 is an explanatory view of a conventional aerial work vehicle, and FIGS.
FIG. 2 is an explanatory view of a main part of an aerial work vehicle of the present invention, FIG. 2 is an explanatory view of an embodiment of the aerial work vehicle of the present invention, and FIG. 3 is an explanatory view of another embodiment. 1; Telescopic boom, 2; Vertical support shaft, 4; Bucket support, 5; Bucket, 6; Hydraulic motor, 10; Hydraulic control device, 11; Rotary joint
Claims (1)
を維持するよう立設した鉛直支軸２に、旋回自在に外嵌
した外嵌部３を有するバケット支持具４を介してバケッ
ト５を取り付けると共に、前記バケット支持具４と鉛直
支軸２間にバケット支持具４に設けた油圧モータ６によ
り駆動される旋回駆動装置７を取り付けてなる高所作業
車であって、伸縮ブーム１側からの給排油路を、前記鉛
直支軸２の軸心と同心的に当該鉛直支軸の外周に配置し
たロータリジョイント11を介して前記バケット支持具４
またはこのバケット支持具４に取り付けられたバケット
５に設けた油圧制御装置10に導き、この油圧制御装置10
の制御油で以て前記油圧モータ６を駆動するよう構成し
てあることを特徴とする高所作業車。1. A bucket 5 via a bucket support 4 having an outer fitting portion 3 which is rotatably fitted on a vertical support shaft 2 which is erected at the tip of a hoisting boom 1 so as to always maintain a vertical posture. And a swivel drive device 7 driven by a hydraulic motor 6 provided on the bucket support tool 4 between the bucket support tool 4 and the vertical support shaft 2. The oil supply and drain passage from the bucket support 4 via the rotary joint 11 arranged concentrically with the axis of the vertical support shaft 2 on the outer circumference of the vertical support shaft 2.
Alternatively, it is guided to the hydraulic control device 10 provided on the bucket 5 attached to the bucket support tool 4 and the hydraulic control device 10
An aerial work vehicle, characterized in that the hydraulic motor 6 is driven by the control oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12597989U JPH0718717Y2 (en) | 1989-10-27 | 1989-10-27 | Aerial work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12597989U JPH0718717Y2 (en) | 1989-10-27 | 1989-10-27 | Aerial work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0364993U JPH0364993U (en) | 1991-06-25 |
| JPH0718717Y2 true JPH0718717Y2 (en) | 1995-05-01 |
Family
ID=31673821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12597989U Expired - Lifetime JPH0718717Y2 (en) | 1989-10-27 | 1989-10-27 | Aerial work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718717Y2 (en) |
-
1989
- 1989-10-27 JP JP12597989U patent/JPH0718717Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0364993U (en) | 1991-06-25 |
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