JPH053565Y2 - - Google Patents
Info
- Publication number
- JPH053565Y2 JPH053565Y2 JP3302687U JP3302687U JPH053565Y2 JP H053565 Y2 JPH053565 Y2 JP H053565Y2 JP 3302687 U JP3302687 U JP 3302687U JP 3302687 U JP3302687 U JP 3302687U JP H053565 Y2 JPH053565 Y2 JP H053565Y2
- Authority
- JP
- Japan
- Prior art keywords
- door
- driver
- cab
- upper revolving
- entrance
- 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
- 239000004576 sand Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、例えば油圧シヨベル等の全旋回式作
業機に関し、特に、運転室のドアを開いたままの
状態で上部旋回体を旋回させても、周囲の障害物
等にドアが衝突するのを防止できるようにした全
旋回式作業機に関する。[Detailed description of the invention] [Industrial application field] This invention relates to a fully rotating work machine such as a hydraulic shovel, and in particular to a fully rotating work machine that can prevent the door from colliding with surrounding obstacles, etc., even if the upper rotating body is rotated with the door of the driver's cab left open.
第６図および第７図に従来技術による全旋回式
作業機として油圧シヨベルを例に挙げて示す。
FIG. 6 and FIG. 7 show a hydraulic excavator as an example of a full swing type working machine according to the prior art.
図中、１は下部走行体、２は該下部走行体１上
に搭載された上部旋回体を示し、該上部旋回体２
には、前部左側に位置する運転室３と、該運転室
３の後側に位置して、上部旋回体２の横幅方向に
延びる機械室４と、該機械室４の後側に位置する
カウンタウエイト５とが設けられている。そし
て、該カウンタウエイト５の後端面は上部旋回体
２の後端側の旋回半径を規定すべく、該上部旋回
体２の旋回中心Ｏから半径R1の円弧面をもつて
形成されている。また、前記運転室３は箱形状に
形成され、その左側面には長方形状の乗降口３Ａ
が比較的大きい寸法をもつて形成されている。 In the figure, 1 indicates an undercarriage body, 2 indicates an upper revolving body mounted on the undercarriage body 1, and the upper revolving body 2
includes a driver's cab 3 located on the front left side, a machine room 4 located at the rear of the driver's cab 3 and extending in the width direction of the upper revolving structure 2, and a machine room 4 located at the rear of the machine room 4. A counterweight 5 is provided. The rear end surface of the counterweight 5 is formed to have a circular arc surface with a radius R 1 from the center of rotation O of the upper revolving body 2 in order to define a turning radius on the rear end side of the upper revolving body 2 . The driver's cab 3 is formed in a box shape, and a rectangular entrance 3A is provided on the left side of the driver's cab 3.
is formed with relatively large dimensions.
６は運転室３の乗降口３Ａを開閉すべく、該乗
降口３Ａの後縁部側に蝶番７，７を介して回動可
能に取付けられたドアを示し、該ドア６は乗降口
３Ａに対応する寸法をもつて形成され、開扉時に
は２点鎖線で示す位置まで各蝶番７を介して回動
されるようになつている。そして、該ドア６の開
扉によつて乗降口３Ａは大きく開放され、運転者
の運転室３内への乗降等が容易に行えうるように
なつている。一方、８は上部旋回体２の前部中央
に設けられた作業装置を示し、該作業装置８は図
示しないシリンダによつて上、下に回動され、土
砂の掘削作業等を行うようになつている。 Reference numeral 6 denotes a door rotatably attached to the rear edge of the entrance 3A via hinges 7, 7 in order to open and close the entrance 3A of the driver's cabin 3. They are formed with corresponding dimensions, and are designed to be rotated via each hinge 7 to the position shown by the two-dot chain line when the door is opened. When the door 6 is opened, the entrance/exit door 3A is wide open, and the driver can easily get in and out of the cab 3. On the other hand, reference numeral 8 indicates a working device installed at the center of the front part of the upper revolving structure 2, and the working device 8 is rotated up and down by a cylinder (not shown), and is used for excavating earth and sand, etc. ing.
従来技術による油圧シヨベルは上述の如き構成
を有するもので、土砂の掘削作業等を行う場合に
は、まず、上部旋回体２を旋回させて、作業装置
８を所望の方向に配向し、該作業装置８を上、下
方向に回動して、土砂等を掘削する。そして、こ
の掘削した土砂等を作業装置８を介して別の位置
に運搬、排土すべく、再び上部旋回体２を旋回さ
せるようにしている。 The hydraulic excavator according to the prior art has the above-mentioned configuration, and when performing earth and sand excavation work, first, the upper revolving body 2 is rotated, the working device 8 is oriented in a desired direction, and the working device 8 is oriented in a desired direction. The device 8 is rotated upward and downward to excavate earth and sand. Then, the upper revolving body 2 is rotated again in order to transport and discharge the excavated earth and sand to another position via the working device 8.
ところで、前述のように上部旋回体２を旋回さ
せる場合、運転者は運転室３のドア６を第７図中
に２点鎖線で示す如く大きく開いたままの状態に
しておくことが多く、該ドア６の先端側は上部旋
回体２の後端側、即ちカウンタウエイト５側へと
突出してしまう。
By the way, when rotating the upper revolving structure 2 as described above, the driver often leaves the door 6 of the driver's cab 3 wide open as shown by the two-dot chain line in FIG. The front end side of the door 6 protrudes toward the rear end side of the upper revolving body 2, that is, toward the counterweight 5 side.
このため、従来技術では、ドア６を大きく開い
た状態で上部旋回体２を旋回させると、第７図中
に示す如く、ドア６の先端側は上部旋回体２の後
端側の旋回半径R1よりも大きい旋回半径R2をも
つて、該上部旋回体２と共に旋回するようにな
り、ドア６を周囲の障害物等に衝突させて、破損
する等の問題が生じる。 Therefore, in the prior art, when the upper revolving body 2 is rotated with the door 6 wide open, the tip side of the door 6 has a turning radius R of the rear end side of the upper revolving body 2, as shown in FIG. With a turning radius R2 larger than 1 , the door 6 turns together with the upper revolving body 2, causing problems such as the door 6 colliding with surrounding obstacles and being damaged.
本考案は上述した従来技術の問題に鑑みなされ
たもので、本考案は運転室のドアを開いたままの
状態で上部旋回体を旋回させても、周囲の障害物
等にドアが衝突するのを防止でき、該ドアが破損
する等の問題を解消できるようにした全旋回式作
業機を提供するものである。 The present invention was developed in view of the above-mentioned problems of the prior art.Even if the upper revolving structure is rotated with the driver's cab door open, the door will not collide with surrounding obstacles. To provide a full swing type working machine which can prevent problems such as damage to the door and solve problems such as damage to the door.
上述した問題点を解決するために本考案が採用
する手段の特徴は、運転室のドアを２個のドア部
に分割し、一方のドア部を運転室の乗降口に回動
可能に取付けると共に、該一方のドア部に他方の
ドア部を回動可能に連結し、該他方のドア部を開
いたときにその旋回半径が上部旋回体の後端側の
旋回半径よりも小さくなるように構成したことに
ある。
The features of the means adopted by the present invention in order to solve the above-mentioned problems are that the door of the driver's cab is divided into two door parts, one door part is rotatably attached to the entrance of the driver's cab, and , the other door part is rotatably connected to the one door part, and the turning radius of the other door part is smaller than the turning radius of the rear end side of the upper rotating body when the other door part is opened. It's what I did.
以下、本考案の実施例を第１図ないし第５図に
基づいて説明する。なお、実施例では前述した第
６図、第７図に示す従来技術と同一の構成要素に
同一の符号を付し、その説明を省略するものとす
る。
Embodiments of the present invention will be described below with reference to FIGS. 1 to 5. In this embodiment, the same components as those of the prior art shown in FIGS. 6 and 7 described above are given the same reference numerals, and their explanations will be omitted.
図中、１１は運転室３の乗降口３Ａを開、閉す
るためのドアを示し、該ドア１１は従来技術で述
べたドア６とほぼ同様に形成されるものの、該ド
ア１１は２個のドア部としての主ドア１１Ａと補
助ドア１１Ｂとに分割されている。そして、該補
助ドア１１Ｂは乗降口３Ａの後縁部側に蝶番１
２，１２を介して回動可能に取付けられ、該補助
ドア１１Ｂの先端側には主ドア１１Ａが蝶番１
３，１３を介して回動可能に連結されている。こ
こで、該ドア１１の補助ドア１１Ｂは後述するス
トツパ１４によつて図示の位置に鎖錠可能となつ
ており、運転者の通常の乗降は主ドア１１Ａを開
閉することにより行われうるようになつている。
そして、該主ドア１１Ａを開いたときには、該主
ドア１１Ａは第１図、第２図中に２点鎖線で示す
如く、補助ドア１１Ｂ側に折重ねられ、該主ドア
１１Ａの先端側は旋回半径R3（但し、R3＜R1）の
位置に配置される。 In the figure, reference numeral 11 indicates a door for opening and closing the entrance 3A of the driver's cab 3. Although the door 11 is formed almost the same as the door 6 described in the prior art, the door 11 has two doors. The door section is divided into a main door 11A and an auxiliary door 11B. The auxiliary door 11B has a hinge 1 on the rear edge side of the entrance/exit 3A.
2 and 12, and the main door 11A has a hinge 1 on the tip side of the auxiliary door 11B.
They are rotatably connected via 3 and 13. Here, the auxiliary door 11B of the door 11 can be locked in the illustrated position by a stopper 14, which will be described later, so that the driver can normally get in and out of the vehicle by opening and closing the main door 11A. It's summery.
When the main door 11A is opened, the main door 11A is folded toward the auxiliary door 11B as shown by the two-dot chain line in FIGS. It is placed at a position with a radius R 3 (where R 3 <R 1 ).
１４，１４は補助ドア１１Ｂを閉扉位置に鎖錠
すべく、該補助ドア１１Ｂの上、下両端側に設け
られたストツパを示し、該各ストツパ１４は第５
図中に例示する如く、補助ドア１１Ｂの取付穴１
５からばね１６によつて乗降口３Ａの端面側へと
押出され、運転室３の壁部に設けた係合穴１７内
に係合して、該補助ドア１１Ｂを開扉位置に鎖錠
するようになつている。また、前記取付穴１５に
は補助ドア１１Ｂの内面側へと開口する細長いガ
イド穴１５Ａが付設され、該ガイド穴１５Ａはス
トツパ１４のレバー１４Ａを運転室３の内部側へ
と突出させるようになつている。そして、該レバ
ー１４Ａをばね１６に抗して押動すれば、ストツ
パ１４と係合穴１７との係合は解除され、補助ド
ア１１Ｂを開扉することが可能となる。 Reference numerals 14 and 14 indicate stoppers provided at both upper and lower end sides of the auxiliary door 11B in order to lock the auxiliary door 11B in the closed position.
As illustrated in the figure, the mounting hole 1 of the auxiliary door 11B
5 to the end face side of the entrance/exit door 3A by a spring 16, and engages in the engagement hole 17 provided in the wall of the driver's cab 3, thereby locking the auxiliary door 11B in the open position. It's becoming like that. Further, the mounting hole 15 is provided with an elongated guide hole 15A that opens toward the inner surface of the auxiliary door 11B, and the guide hole 15A allows the lever 14A of the stopper 14 to protrude toward the interior of the driver's cab 3. ing. If the lever 14A is pushed against the spring 16, the engagement between the stopper 14 and the engagement hole 17 is released, and the auxiliary door 11B can be opened.
本実施例による油圧シヨベルは上述の如き構成
を有するもので、その基本的作動については従来
技術によるものと格別差異はない。 The hydraulic excavator according to this embodiment has the above-mentioned configuration, and its basic operation is not particularly different from that of the prior art.
然るに、本実施例では、運転室３のドア１１を
主ドア１１Ａと補助ドア１１Ｂとに２分割し、該
補助ドア１１Ｂを乗降口３Ａに各蝶番１２を介し
て取付けると共に、該補助ドア１１Ｂの先端側に
は主ドア１１Ａを各蝶番１３を介して連結し、該
主ドア１１Ａを補助ドア１１Ｂ側に折重ねるよう
開いたときには、該主ドア１１Ａの先端側が旋回
半径R3の位置に配置されるようにしたから、主
ドア１１Ａを開いたままの状態で上部旋回体２を
旋回させても、該主ドア１１Ａの旋回半径R3は
上部旋回体２の後端側、即ちカウンタウエイト５
の旋回半径R1よりも小さくなり、該主ドア１１
Ａが周囲の障害物等に衝突するのを防止でき、該
主ドア１１Ａを破損する等の事故をなくすことが
できる。 However, in this embodiment, the door 11 of the driver's cab 3 is divided into two, a main door 11A and an auxiliary door 11B, and the auxiliary door 11B is attached to the entrance/exit 3A via each hinge 12, and the auxiliary door 11B is A main door 11A is connected to the tip side via each hinge 13, and when the main door 11A is folded and opened to the auxiliary door 11B side, the tip side of the main door 11A is located at a position with a turning radius R 3 . Therefore, even if the revolving upper structure 2 is rotated with the main door 11A open, the turning radius R 3 of the main door 11A is on the rear end side of the revolving upper structure 2, that is, the counterweight 5.
is smaller than the turning radius R 1 of the main door 11
A can be prevented from colliding with surrounding obstacles, and accidents such as damage to the main door 11A can be avoided.
そして、主ドア１１Ａのみの開、閉によつて運
転者の通常の乗降り等を可能としうる上に、運転
室３の乗降口３Ａを大きく開放して、運転室３内
部の保守、点検等を行う場合には、各ストツパ１
４による補助ドア１１Ｂの鎖錠を解除すれば、該
補助ドア１１Ｂを主ドア１１Ａと共に開扉でき、
乗降口３Ａを大きく開放することができる。 By opening and closing only the main door 11A, it is possible for the driver to get on and off the vehicle normally, and the entrance 3A of the driver's cab 3 can be opened wide to allow maintenance, inspection, etc. inside the driver's cab 3. When performing
If the lock of the auxiliary door 11B by 4 is released, the auxiliary door 11B can be opened together with the main door 11A,
The boarding entrance 3A can be opened wide.
さらに、主ドア１１Ａと補助ドア１１Ｂとから
なるドア１１の寸法を従来技術で述べたドア６と
同一にすることも可能であるから、従来から使用
されている油圧シヨベルの運転室のドアを主ドア
１１Ａ、補助ドア１１Ｂからなるドア１１に交換
するだけでよく、取替え作業も簡素化できる等、
種々の効果を奏する。 Furthermore, it is possible to make the dimensions of the door 11 consisting of the main door 11A and the auxiliary door 11B the same as the door 6 described in the prior art. It is only necessary to replace the door 11 with the door 11 consisting of the door 11A and the auxiliary door 11B, which simplifies the replacement work.
It has various effects.
なお、前記実施例では、主ドア１１Ａの寸法を
補助ドア１１Ｂよりも大きくしたものを示した
が、これらの寸法は機種に応じて適宜に変更して
もよい。また、本考案は油圧シヨベルに限らず、
種々の全旋回式作業機にも適用できるものであ
る。 In the above embodiment, the dimensions of the main door 11A are larger than those of the auxiliary door 11B, but these dimensions may be changed as appropriate depending on the model. In addition, this invention is not limited to hydraulic excavators.
It can also be applied to various full swing type working machines.
以上詳述した通り、本考案によれば、運転室の
ドアを２個のドア部に分割し、一方のドア部を乗
降口に、他方のドア部を該一方のドア部にそれぞ
れ回動可能に連結し、該他方のドア部を開いたま
まの状態で上部旋回体を旋回させても、該他方の
ドア部の旋回半径が上部旋回体の後端側の旋回半
径よりも小さくなるようにしたから、他方のドア
部が周囲の障害物等に衝突するのを防止でき、ド
アの破損事故等をなくすことができる。また、従
来の機種に対してドアのみを交換でき、取替作業
の簡素化等を図ることができる。
As detailed above, according to the present invention, the driver's cab door is divided into two door parts, one door part can be turned into an entrance and exit, and the other door part can be turned into one door part. so that even if the upper revolving structure is rotated with the other door section open, the turning radius of the other door section will be smaller than the turning radius of the rear end of the upper revolving structure. Therefore, it is possible to prevent the other door portion from colliding with surrounding obstacles, and it is possible to eliminate accidents such as damage to the door. In addition, only the door can be replaced compared to the conventional model, which simplifies the replacement work.
第１図ないし第５図は本考案の実施例を示し、
第１図は油圧シヨベルの正面図、第２図は第１図
の平面図、第３図は第１図の要部拡大図、第４図
は第３図中の矢示−方向断面図、第５図は第
３図中の矢示−方向断面拡大図、第６図およ
び第７図は従来技術を示し、第６図は油圧シヨベ
ルの正面図、第７図は第６図の平面図である。
２……上部旋回体、３……運転室、３Ａ……乗
降口、１１……ドア、１１Ａ……主ドア、１１Ｂ
……補助ドア、１２，１３……蝶番、１４……ス
トツパ、R1，R2，R3……旋回半径。
1 to 5 show embodiments of the present invention,
Fig. 1 is a front view of the hydraulic excavator, Fig. 2 is a plan view of Fig. 1, Fig. 3 is an enlarged view of main parts of Fig. 1, Fig. 4 is a sectional view in the direction indicated by the arrow in Fig. 3, Fig. 5 is an enlarged cross-sectional view in the direction of the arrow in Fig. 3, Figs. 6 and 7 show the prior art, Fig. 6 is a front view of the hydraulic excavator, and Fig. 7 is a plan view of Fig. 6. It is. 2... Upper revolving body, 3... Driver's cabin, 3A... Entrance/exit, 11... Door, 11A... Main door, 11B
... Auxiliary door, 12, 13 ... Hinge, 14 ... Stopper, R 1 , R 2 , R 3 ... Turning radius.
Claims (1)
され、一側に乗降口を有する運転室と、該運転室
の乗降口を開閉すべく、該乗降口に回動可能に設
けられたドアとからなる全旋回式作業機におい
て、前記ドアを２個のドア部に分割し、一方のド
ア部を前記運転室の乗降口に回動可能に取付ける
と共に、該一方のドア部に他方のドア部を回動可
能に連結し、該他方のドア部を開いたときにその
旋回半径が前記上部旋回体の後端側の旋回半径よ
りも小さくなるように構成したことを特徴とする
全旋回式作業機。 an upper revolving body; a driver's cab disposed on one side of the front part of the upper revolving body and having an entrance on one side; In a full swing type work machine consisting of a door, the door is divided into two door parts, one door part is rotatably attached to the entrance/exit of the operator's cab, and the door part is rotatably attached to the door. The other door portion is rotatably connected, and the turning radius of the other door portion is smaller than the turning radius of the rear end side of the upper revolving body when the other door portion is opened. Fully rotating work machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3302687U JPH053565Y2 (en) | 1987-03-06 | 1987-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3302687U JPH053565Y2 (en) | 1987-03-06 | 1987-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63141260U JPS63141260U (en) | 1988-09-16 |
| JPH053565Y2 true JPH053565Y2 (en) | 1993-01-28 |
Family
ID=30840252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3302687U Expired - Lifetime JPH053565Y2 (en) | 1987-03-06 | 1987-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053565Y2 (en) |
-
1987
- 1987-03-06 JP JP3302687U patent/JPH053565Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63141260U (en) | 1988-09-16 |
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