JPH09316928A - Swivel working machine - Google Patents

Swivel working machine

Info

Publication number
JPH09316928A
JPH09316928A JP13216696A JP13216696A JPH09316928A JP H09316928 A JPH09316928 A JP H09316928A JP 13216696 A JP13216696 A JP 13216696A JP 13216696 A JP13216696 A JP 13216696A JP H09316928 A JPH09316928 A JP H09316928A
Authority
JP
Japan
Prior art keywords
bonnet
side plate
plate portion
swivel
plan
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.)
Granted
Application number
JP13216696A
Other languages
Japanese (ja)
Other versions
JP3148638B2 (en
Inventor
Masahiko Kobayashi
昌彦 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP13216696A priority Critical patent/JP3148638B2/en
Publication of JPH09316928A publication Critical patent/JPH09316928A/en
Application granted granted Critical
Publication of JP3148638B2 publication Critical patent/JP3148638B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To prevent the space on both ends of a bonnet formed in substantially arc shape when viewed on the plan from being opened. SOLUTION: A bonnet 13 is openably provided on a swivel equipment body turnably mounted on a traveling device of a swivel working machine where the bonnet 13 is provided with a substantially arc-shaped side plate member 13A and a top board member 13B. The top board member 13B is mounted turnably on the swivel equipment body around a horizontal axis so that the bonnet 13 may be opened upward. On both ends of the side plate member 13A is provided an expansion preventive member 46, which comes in contact with a regulation part 47 provided on the swivel equipment side outwardly on both sides when the bonnet 13 is closed, thereby forming the contact surface to the regulating part of the expansion preventive member 46 on an inclined surface which turns inwardly the both directions along the tip side.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、バックホー等の旋
回作業機のボンネット取付装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonnet mounting device for a swing working machine such as a backhoe.

【0002】[0002]

【従来の技術】従来より、いわゆる後方小旋回型のバッ
クホーが、例えば特開平6−212666号公報に開示
されている。この後方小旋回型バックホーは、旋回台の
平面視形状を略円形とし、クローラ式走行装置の略左右
幅内に旋回台が収まるように構成して、旋回作業性、狭
所作業性を向上しているとともに、旋回台の前端部に作
業機のブームを取付けることで、居住空間の確保又は一
層の小型化を図っている。
2. Description of the Related Art Conventionally, a so-called small backward turning type backhoe is disclosed in, for example, Japanese Patent Laid-Open No. 6-212666. In this rear small turning type backhoe, the plan view of the swivel base is substantially circular, and the swivel base is configured to fit within the substantially left and right width of the crawler type traveling device to improve the swivel workability and narrow space workability. In addition, the boom of the working machine is attached to the front end of the swivel base to secure a living space or further reduce the size.

【0003】このバックホーでは、旋回台の後部にエン
ジンを搭載し、このエンジンを開閉自在なボンネットに
より覆っており、上述のように旋回台を平面視略円形と
するために、ボンネットも平面視略円弧状に構成する必
要があるとともに、エンジンのメンテナンス性を確保す
るために、開閉自在に取付けるためのヒンジを上端側に
水平状に設けて、ボンネットを上方に開くように構成し
ている。
In this backhoe, an engine is mounted on the rear portion of the swivel base, and the engine is covered with an openable / closable bonnet. As described above, the bonnet is also substantially flat in plan view in order to make the swivel base substantially circular. In order to ensure the maintainability of the engine, a hinge for opening and closing is provided horizontally on the upper end side to open the bonnet upward in order to ensure the maintainability of the engine.

【0004】[0004]

【発明が解決しようとする課題】しかし、長期間の使用
により、平面視略円弧状に形成されたボンネットの左右
端間隔が開くように変形することがあり、ボンネットを
閉めた際の納りが悪化し、ガタツキの発生が生じるとと
もに、場合によってはボンネットを閉められなくなる可
能性もある。
However, when used for a long period of time, the bonnet formed in a generally arcuate shape in plan view may be deformed so that the distance between the left and right ends of the bonnet is opened, and the bonnet cannot be accommodated when closed. It may worsen, rattling may occur, and in some cases, the bonnet may not be able to be closed.

【0005】特に、近年、小型バックホーにおいては、
軽量化や外観商品性の向上等のために、ボンネットを樹
脂化する傾向にあるが、この場合にはエンジン室内部の
熱によって上記したような変形が促進されてしまう。そ
こで、本発明は、旋回作業機において、平面視略円弧状
に形成されたボンネットの左右端間隔が開くことを防止
することを目的とする。
Particularly in recent years, in small backhoes,
The bonnet tends to be made of resin in order to reduce the weight and improve the appearance of the product, but in this case, the above-mentioned deformation is promoted by the heat inside the engine compartment. Therefore, it is an object of the present invention to prevent the bonnet, which is formed in a substantially arcuate shape in a plan view, from opening the left and right end intervals in a turning work machine.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に、本発明では、次の技術的手段を講じた。すなわち、
本発明は、走行装置に旋回可能に装着された旋回機体
に、平面視略円弧状の側板部を有するボンネットが開閉
自在に設けられた旋回作業機において、ボンネットの側
板部の左右いずれか一方及び/又は両方の端部と、旋回
機体との間に、ボンネットの側板部の左右端間隔が開く
ことを阻止する変形阻止手段を設けるものである。
Means for Solving the Problems In order to achieve the above object, the present invention has taken the following technical means. That is,
The present invention provides a revolving work machine in which a bonnet having a side plate portion having a substantially arcuate shape in a plan view is openably and closably provided on a revolving machine body that is rotatably mounted on a traveling device, and one of left and right side plate portions of the bonnet and Deformation prevention means for preventing the left and right end spaces of the side plate portion of the bonnet from being opened is provided between both or both ends and the revolving machine body.

【0007】上記のように側板部を有するボンネットを
上方開放可能に構成すると、ボンネットを開けたとき
に、旋回機体に搭載されたエンジンの側方を大きく開放
することができて、整備性が向上するとともに、この側
板部を平面視略円弧状に構成して、ボンネットの側板部
を、旋回機体の旋回中心から所定の径の旋回軌跡に沿わ
せることができて、旋回作業性も向上される。
When the bonnet having the side plate portion is configured to be opened upward as described above, the side of the engine mounted on the turning machine body can be largely opened when the bonnet is opened, and the maintainability is improved. In addition, the side plate portion can be formed in a substantially arcuate shape in a plan view, and the side plate portion of the bonnet can be made to follow a turning trajectory of a predetermined diameter from the turning center of the turning machine body, and turning workability is also improved. .

【0008】かかるボンネットの側板部は、長期間の使
用によって左右に拡開するように変形しようとするが、
上記した変形阻止手段によって側板部の左右端間隔が開
くことを阻止しているので、そのような変形が防止され
る。また、本発明は、走行装置に旋回可能に装着された
旋回機体にボンネットが開閉可能に設けられ、該ボンネ
ットは、平面視略円弧状の側板部と、天板部とを備える
旋回作業機において、前記ボンネットは、その天板部が
水平軸線回りに回動可能に旋回機体に取付けられること
で上方に開放可能に設けられており、前記側板部の左右
いずれか一方及び/又は両方の端部には、ボンネットが
閉じられたときに旋回機体側に設けた規制部に左右内方
から当接する拡開防止部材が設けられ、該拡開防止部材
の規制部への当接面は、先端側にしたがって左右方向内
方となる傾斜面に形成されていることを特徴としてい
る。
[0008] The side plate portion of such a bonnet tends to deform so as to expand to the left and right due to long-term use,
Since the deformation preventing means prevents the left and right end spaces of the side plate portion from opening, such deformation is prevented. Further, the present invention provides a turning work machine in which a bonnet is openably and closably provided on a turning machine body that is turnably attached to a traveling device, and the bonnet is a turning work machine including a side plate part having a substantially arc shape in plan view and a top plate part. The bonnet is provided so that the top plate of the bonnet can be opened upward by being attached to a revolving machine body so as to be rotatable about a horizontal axis, and either one of the left and right ends of the side plate and / or both end parts of the bonnet can be opened. Is provided with an expansion preventing member that comes into contact with the restriction portion provided on the swivel body side from the left and right when the bonnet is closed, and the contact surface of the expansion prevention member with respect to the restriction portion is the tip side. Therefore, it is characterized in that it is formed on the inclined surface that is inward in the left-right direction.

【0009】このように拡開防止部材の規制部への当接
面を傾斜面に形成しておけば、ボンネットが多少左右方
向に拡開していたり、ボンネットが左右にがたついたと
しても、ボンネットを閉めるときに拡開防止部材が円滑
に規制部に当接されるようになり、ボンネットの変形や
がたつきを吸収して、ボンネットを閉じた状態ではその
左右端間隔を適正なものに保持する。
By forming the abutment surface of the expansion preventing member against the restricting portion on the inclined surface as described above, even if the bonnet is expanded slightly in the left-right direction or the bonnet is rattled left and right. , When the bonnet is closed, the expansion prevention member comes into smooth contact with the regulation part, absorbs deformation and rattling of the bonnet, and when the bonnet is closed, the right and left end intervals are properly adjusted. Hold on.

【0010】なお、拡開防止部材の先端部を丸めること
によって、ボンネットを閉めるときに拡開防止部材が規
制部を円滑に通過しうるようにするのが好ましい。ま
た、拡開防止部材をボンネットに前後方向取付位置調整
自在として、傾斜状とされた拡開防止部材による左右端
間隔の規制量を調整できるようにすることができる。か
かる方法としては、拡開防止部材に取付用の長孔を設け
て、該長孔を利用してボルト固定することができる。
It is preferable that the expansion preventing member is rounded so that the expansion preventing member can smoothly pass through the restriction portion when the bonnet is closed. Further, the expansion preventing member can be attached to the bonnet freely in the front-rear mounting position, and the amount of regulation of the distance between the left and right ends by the inclined expansion preventing member can be adjusted. As such a method, a long hole for attachment can be provided in the expansion preventing member, and bolts can be fixed using the long hole.

【0011】[0011]

【発明の実施の形態】以下、本発明の実施の形態を、図
面に基づいて説明する。図8〜図10に示す旋回作業機
1は、油圧ショベル、又は、バックホーとも呼ばれるも
のであり、特に、後方小旋回型バックホーと称されるも
のである。この旋回作業機1は、走行装置5上に旋回機
体4を支持し、該旋回機体4の前部に掘削装置3を備え
て構成されている。旋回機体4は走行装置5上で縦軸方
向の旋回中心Z廻りに旋回可能となっており、その上部
には、座席部9、操作部8等よりなる運転部7を備え、
該座席部9の上方には支柱10を介して日除け部11が
備えられている。また、走行装置5の前部には、ドーザ
シリンダ69により作動されるドーザ装置6を備えてい
る。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The swing working machine 1 shown in FIGS. 8 to 10 is also called a hydraulic excavator or a backhoe, and is particularly called a rear small swing type backhoe. The turning work machine 1 is configured to support a turning machine body 4 on a traveling device 5 and to equip a front portion of the turning machine body 4 with an excavating device 3. The swivel body 4 is capable of swiveling around a swivel center Z in the vertical axis direction on the traveling device 5, and an operating portion 7 including a seat portion 9, an operating portion 8 and the like is provided on the upper portion thereof.
A sunshade section 11 is provided above the seat section 9 through a column 10. Further, a dozer device 6 operated by a dozer cylinder 69 is provided at the front part of the traveling device 5.

【0012】前記掘削装置3は、旋回機体4の前部に突
設した支持部39に左右揺動自在に取付けた揺動ブラケ
ット26と、ブームシリンダ28の伸縮動作によって上
下揺動可能に前記ブラケット26に取付けたブーム27
と、アームシリンダ30の伸縮動作によって前後揺動可
能にブーム27の先端部に取付けたアーム29と、バケ
ットシリンダ32の伸縮動作によって掻き込み揺動可能
にアーム29の先端部に取付けたバケット31等よりな
る。
The excavator 3 has a swinging bracket 26 that is swingably mounted on a supporting portion 39 that projects from the front part of the swinging machine body 4, and a boom cylinder 28 that allows the swinging bracket 26 to swing up and down. Boom 27 attached to 26
An arm 29 attached to the tip of the boom 27 so as to be capable of swinging back and forth by the extension and contraction of the arm cylinder 30; and a bucket 31 attached to the tip of the arm 29 so as to be swept and swingable by the extension and contraction of the bucket cylinder 32. Consists of.

【0013】図10に示すように、旋回機体4の後部に
はエンジン19、ラジエータ20、エンジン19によっ
て駆動される油圧ポンプ21等を配置して、これらエン
ジン19等により構成される原動部の後上方及び後側方
が、開閉可能なボンネット(後部カバー)13により覆
われている。なお、旋回機体4の右側部には燃料タンク
22が配置され、該燃料タンク22は保護カバー23に
より覆われている。
As shown in FIG. 10, an engine 19, a radiator 20, a hydraulic pump 21 driven by the engine 19 and the like are arranged at the rear portion of the turning machine body 4, and a rear part of a driving portion constituted by the engine 19 and the like is arranged. The upper side and the rear side are covered with an openable / closable bonnet (rear cover) 13. A fuel tank 22 is arranged on the right side of the swivel body 4, and the fuel tank 22 is covered with a protective cover 23.

【0014】ボンネット13は、旋回機体4の左右方向
の幅にわたって略門形に形成された固定フレーム12に
ヒンジ16等を介して支持されており、該固定フレーム
の上方及び左右側方は固定カバー15により覆われてい
る。このボンネット13の取付構造(取付装置)の詳細
は後述する。前記座席部9は、旋回機体4の左右方向に
関して若干左側に偏心して配置されており、前記固定カ
バー15及び後部カバー13の上面に形成した凹陥部1
8に嵌め込まれるように搭載されている。
The bonnet 13 is supported via a hinge 16 or the like on a fixed frame 12 formed in a substantially gate shape over the width of the revolving machine body 4 in the left-right direction, and the upper and left and right sides of the fixed frame are fixed covers. It is covered by 15. Details of the mounting structure (mounting device) of the bonnet 13 will be described later. The seat portion 9 is disposed so as to be slightly eccentric to the left in the left-right direction of the swivel body 4, and has a recessed portion 1 formed on the upper surfaces of the fixed cover 15 and the rear cover 13.
It is mounted so that it can be fitted into 8.

【0015】前記旋回機体4は、その下部に平面視略円
形の平板状の基板(旋回フレーム)を備え、該基板の外
周が下カバー37、ウエイト38により囲繞され、この
下カバー37及びウエイト38の上部に固定カバー15
等を設けることでその外形を成すようにして、かかる旋
回機体4に前記ボンネット13が開閉可能に取付けられ
ている。なお、固定カバー15やボンネット13等によ
って形成される外形は、旋回機体4の左右側部及び前部
を平面状とし、後部を円弧状に形成している。そして、
旋回機体4の旋回半径が、走行装置5の左右のクローラ
幅よりも小さくなるようにして、旋回作業性、狭所作業
性を向上している。
The swivel body 4 is provided at its lower portion with a flat plate-shaped substrate (swivel frame) having a substantially circular shape in plan view, and the outer periphery of the substrate is surrounded by a lower cover 37 and a weight 38, and the lower cover 37 and the weight 38 are provided. Fixed cover 15 on top of
The bonnet 13 is attached to the swivel body 4 so as to be openable and closable so as to form its outer shape by providing the above. The outer shape formed by the fixed cover 15, the bonnet 13 and the like is such that the left and right side portions and the front portion of the swivel body 4 are flat and the rear portion is arcuate. And
The turning radius of the turning machine body 4 is set to be smaller than the widths of the crawlers on the left and right of the traveling device 5 to improve the turning workability and the narrow space workability.

【0016】前記走行装置5は、旋回機体4を旋回可能
に支持する支持台51を有する走行機体52と、該走行
機体52に左右方向に位置変更自在に備えた左右走行体
53とを有している。左右の走行体53は、夫々車輪フ
レーム55を備え、該車輪フレーム55の前部には従動
輪56が設けられ、後部には油圧モータにより回転駆動
可能となる駆動輪57が設けられ、下部には複数の転動
輪が設けられている。そして、前記従動輪56、駆動輪
57及び転動輪に無端状の履帯58を巻回してクローラ
走行体を形成している。なお、走行機体52の後方にオ
イルタンク71が設けられており、旋回機体4上のスペ
ースを広くして、旋回機体4上での作業機の操作性や居
住性を向上するとともに、視界の確保をも図っている。
このオイルタンク71は、支持台51内に設けられたス
イベルジョイントを介して旋回機体4側の油圧機器に連
結されている。
The traveling device 5 has a traveling machine body 52 having a support 51 for supporting the revolving machine body 4 so as to be rotatable, and a left and right traveling body 53 provided on the traveling machine body 52 so as to be positionally changeable in the left-right direction. ing. Each of the left and right traveling bodies 53 is provided with a wheel frame 55, a driven wheel 56 is provided at a front portion of the wheel frame 55, a drive wheel 57 that can be rotationally driven by a hydraulic motor is provided at a rear portion thereof, and a driven wheel 57 is provided at a lower portion thereof. Is provided with a plurality of rolling wheels. An endless crawler belt 58 is wound around the driven wheel 56, the drive wheel 57, and the rolling wheel to form a crawler traveling body. An oil tank 71 is provided behind the traveling machine body 52 to widen the space on the revolving machine body 4 to improve the operability and habitability of the working machine on the revolving machine body 4 and to secure the visibility. Is also trying.
The oil tank 71 is connected to a hydraulic device on the swivel body 4 side through a swivel joint provided in the support base 51.

【0017】以下、ボンネット13の取付構造について
詳述する。図1及び図2に示すように、ボンネット13
が支持される固定フレーム12は、左右一対の支柱部4
1と、左右の支柱部41を連結する上梁材42とで略門
形に構成されている。なお、これら左右の支柱部41の
上端部に日除け11の支柱11aが取付固定される。
The mounting structure of the bonnet 13 will be described in detail below. As shown in FIGS. 1 and 2, the hood 13
The fixed frame 12 that supports the
1 and an upper beam member 42 that connects the left and right support parts 41 to each other is formed in a substantially gate shape. The columns 11a of the awning 11 are attached and fixed to the upper ends of the left and right columns 41.

【0018】一方、ボンネット13は、エンジン19等
からなる原動部の後側方を覆う平面視略円弧状の側板部
13Aと、原動部の上方若しくは後上方を覆う天板部1
3Bとを備えて構成されている。側板部13Aの左右端
は、固定カバー15の左右外側面に近接する間隔に形成
されている。天板部13Bの前端縁は、左右方向の直線
状に形成され、後端縁は側板部13Aに沿って円弧状に
形成されている。
On the other hand, the bonnet 13 includes a side plate portion 13A having a substantially arcuate shape in plan view which covers a rear side of a driving portion including the engine 19 and the like, and a top plate portion 1 which covers an upper portion or a rear upper portion of the driving portion.
And 3B. The left and right ends of the side plate portion 13A are formed at intervals close to the left and right outer surfaces of the fixed cover 15. The front end edge of the top plate portion 13B is formed in a straight line in the left-right direction, and the rear end edge is formed in an arc shape along the side plate portion 13A.

【0019】ボンネット13を開閉可能に支持するヒン
ジ16は、左右の支柱部41の上端近傍と、ボンネット
13の天板部13Bの前端左右両側部との間にそれぞれ
設けられている。これら左右のヒンジ16の回動軸線L
は水平状となされるとともに旋回機体4の前後方向と直
角な左右方向となされており、ボンネット13を水平軸
線回りに上方回動して、大きく上方に開放し得るように
構成することで、メンテナンス性の向上を図っている。
The hinges 16 for supporting the bonnet 13 in an openable and closable manner are respectively provided between the upper end portions of the left and right support portions 41 and the left and right front end portions of the top plate portion 13B of the bonnet 13. The rotation axis L of the left and right hinges 16
Has a horizontal shape and a left-right direction that is perpendicular to the front-rear direction of the swivel body 4, and is configured so that the bonnet 13 can be pivoted upward about the horizontal axis to open largely upward. We are trying to improve sex.

【0020】側板部13Aの左右中央下部には、ボンネ
ット13を閉めた状態でロックするためのロック装置4
3が設けられている。このロック装置43は、カウンタ
ウェイト38の左右中央上部に上方突出状に設けられた
受部材44に対して固定解除操作自在に構成されてい
る。また、側板部13Aの左右外端下部には、図3にも
示すように、側板部13Aの左右端間隔が開くことを阻
止する変形阻止手段45が、旋回機体4とボンネット1
3との間に介在するように設けられている。本実施形態
では左右両方の外端部にこの手段45を設けているが、
左右いずれか一方のみに設けてもよい。
A locking device 4 for locking the bonnet 13 in the closed state is provided at the lower left and right center of the side plate portion 13A.
3 are provided. The lock device 43 is configured to be capable of releasing the fixation with respect to the receiving member 44 provided on the upper part of the counterweight 38 at the upper left and right center thereof so as to project upward. Further, as shown in FIG. 3, at the lower left and right outer ends of the side plate portion 13A, deformation preventing means 45 for preventing the distance between the left and right end portions of the side plate portion 13A from being opened is provided with the swivel body 4 and the bonnet 1.
It is provided so as to intervene between it and 3. In this embodiment, the means 45 is provided at both the left and right outer ends,
It may be provided on only one of the left and right sides.

【0021】この変形阻止手段45は、ボンネット13
側に設けた拡開防止部材46と、旋回機体4側に設けた
規制部47とを有している。拡開防止部材46は、ボン
ネット13が閉じられたときに規制部47に左右内方か
ら当接され、この当接面(即ち、本実施形態では左右外
面側)は、先端側(前側)にしたがって左右方向内方と
なる傾斜面に形成されている。このような変形阻止手段
45は板材を折曲成形したものや、ブロック材等により
構成できる。該手段45の好ましい実施例については後
述する。
The deformation preventing means 45 is provided in the bonnet 13
It has an expansion preventing member 46 provided on the side and a restricting portion 47 provided on the turning machine body 4 side. When the bonnet 13 is closed, the expansion preventing member 46 is in contact with the restricting portion 47 from the left and right inward, and the contact surface (that is, the left and right outer surface sides in the present embodiment) is on the tip side (front side). Therefore, it is formed on the inclined surface that is inward in the left-right direction. The deformation preventing means 45 may be formed by bending a plate material, a block material, or the like. A preferred embodiment of the means 45 will be described later.

【0022】規制部47は固定カバー15の一部を利用
して構成されている。即ち、固定カバー15の左右側板
部15aの前後端には左右内方に折り曲げ成形された折
曲片15bが一体に設けられ、この後端側の折曲片15
bの先端部によって規制部47が構成されている。該折
曲片15bの先端部には樹脂製のクッション材(グロメ
ット)48が取付けられており、折曲片15b及び拡開
防止部材46の破損防止を図っている。
The regulation portion 47 is constructed by utilizing a part of the fixed cover 15. That is, the bent pieces 15b formed by bending the right and left inward are integrally provided at the front and rear ends of the left and right side plate portions 15a of the fixed cover 15, and the bent pieces 15 on the rear end side are formed.
The restriction portion 47 is configured by the tip portion of b. A resin cushion material (grommet) 48 is attached to the tip of the bent piece 15b to prevent the bent piece 15b and the expansion preventing member 46 from being damaged.

【0023】なお、規制部47は、固定フレーム12等
の他の固定部材に設けることができる。以下、拡開防止
部材46の実施例について説明する。図3及び図4は、
拡開防止部材46の第1実施例を示しており、この拡開
防止部材46は長方板状の鋼板材を折曲成形してなり、
ボンネット13への取付片46aと、該取付片46aの
後端縁から左右内方に直角に延出される立上片46b
と、該立上片46bの左右内端縁から前方へ(旋回機体
側へ)延出される規制片46cとから主構成されてい
る。
The restriction portion 47 can be provided on another fixing member such as the fixing frame 12. Hereinafter, examples of the expansion preventing member 46 will be described. FIG. 3 and FIG.
The 1st Example of the expansion prevention member 46 is shown, This expansion prevention member 46 bends and forms the steel plate material of a rectangular plate shape,
A mounting piece 46a attached to the bonnet 13 and a rising piece 46b extending right and left inward from the rear end edge of the mounting piece 46a.
And a restricting piece 46c extending forward (toward the turning machine body) from the left and right inner edges of the rising piece 46b.

【0024】取付片46aには上下一対のボルト孔49
が形成されており、このボルト孔49に取付けられるボ
ルト50によってボンネット13に対して取付固定され
ている。なお、図4に二点鎖線で示すように、ボルト孔
49を前後方向に延びる長孔とすることによって、ボン
ネット13に対する拡開防止部材46の取付位置を張設
可能としておくのが好ましい。
The mounting piece 46a has a pair of upper and lower bolt holes 49.
Are formed and are fixedly attached to the bonnet 13 by bolts 50 attached to the bolt holes 49. As shown by the chain double-dashed line in FIG. 4, it is preferable that the attachment position of the expansion preventing member 46 with respect to the bonnet 13 can be stretched by making the bolt hole 49 an elongated hole extending in the front-rear direction.

【0025】前記規制片46cは、先端側にしたがって
左右方向内方となる傾斜状に形成されており、かかる規
制片46cの左右外側面が、規制部47への当接面とな
されている。また、規制片46cの先端部は、左右方向
内方に丸められており、該先端部が円滑に規制部47を
通過できるようにしている。なお、拡開防止部材46
は、バネ鋼により構成することによって、ボンネットの
開閉による形状変更や抵抗の変化を緩和するのが好まし
い。また、SS400、SPHC又はSPCC等の鋼材
により構成することもできる。
The restriction piece 46c is formed in an inclined shape that is inward in the left-right direction toward the front end side, and the left and right outer surfaces of the restriction piece 46c are contact surfaces with the restriction portion 47. Further, the tip end of the restriction piece 46c is rounded inward in the left-right direction so that the tip can smoothly pass through the restriction part 47. The expansion prevention member 46
Is preferably made of spring steel, so that the change in shape and the change in resistance due to the opening and closing of the bonnet are alleviated. It can also be made of a steel material such as SS400, SPHC or SPCC.

【0026】この第1実施例の拡開防止部材46によれ
ば、鋼板を折曲成形してなるものであるから構造が極め
て簡単で、コスト低減が図られ、また、ボンネットに対
してボルト50により取付けるだけでよいから、取付の
容易化も図られ、さらに、ボンネット13から機外へ突
出することもなく、外観を損ねることも防止することが
できる。
According to the expansion preventing member 46 of the first embodiment, since the steel plate is formed by bending, the structure is extremely simple, the cost is reduced, and the bolt 50 is attached to the bonnet. Therefore, the mounting can be facilitated, and further, it is possible to prevent the bonnet 13 from protruding to the outside of the machine and prevent the appearance from being spoiled.

【0027】また、ボルト孔49を長孔としておけば、
傾斜状の規制片46cのボンネット13に対する前後方
向位置を調整することによって、ボンネット13を閉め
た際の側板部13Aの左右端間隔の絞り量を容易に調整
することができる。また、ボンネット13が左右方向に
振れたり、側板部13Aの左右端間隔が拡開するように
変形する等によって、図3に二点鎖線で示すようにボン
ネット13を閉めようとする際に側板部13Aの左右端
部が固定カバー15の左右側面よりも左右外方にずれて
いても、拡開防止部材46の規制片46が傾斜状となさ
れているので、該規制部46によって、側板部13Aの
左右端部を適正な位置に案内することができ、ボンネッ
ト13閉時の納りを良好なものとすることができる。
If the bolt holes 49 are elongated holes,
By adjusting the position of the inclined restricting piece 46c in the front-rear direction with respect to the bonnet 13, it is possible to easily adjust the amount of narrowing between the left and right ends of the side plate portion 13A when the bonnet 13 is closed. In addition, when the bonnet 13 is swung in the left-right direction or the side plate portion 13A is deformed so that the distance between the left and right ends of the side plate portion 13A is widened, the side plate portion is closed when the bonnet 13 is closed as shown by a two-dot chain line in FIG. Even if the left and right end portions of 13A are displaced to the left and right outside the left and right side surfaces of the fixed cover 15, since the restricting piece 46 of the expansion preventing member 46 is inclined, the restricting portion 46 allows the side plate portion 13A. The left and right ends of the can be guided to appropriate positions, and the bonnet 13 can be properly stored when closed.

【0028】図5は拡開防止部材46の第2実施例を示
しており、上記第1実施例と異なるところは、規制片4
6cの先端部が丸められていない点であり、その他の構
成、作用効果については同様であるので、同符号を付し
て詳細説明を省略する。図6は拡開防止部材46の第3
実施例を示しており、上記第2実施例と異なるところ
は、規制片46cは、取付片46aの前端部に直接連結
されており、立上片が設けられていない点であり、その
他の構成、作用効果については同符号を付して詳細説明
を省略する。
FIG. 5 shows a second embodiment of the expansion preventing member 46. The difference from the first embodiment is that the restriction piece 4 is used.
The tip of 6c is not rounded, and other configurations and operational effects are the same, so the same reference numerals are given and detailed description thereof is omitted. FIG. 6 shows a third part of the expansion preventing member 46.
An embodiment is shown, and the difference from the second embodiment is that the restricting piece 46c is directly connected to the front end portion of the mounting piece 46a and no rising piece is provided, and other configurations are provided. The same effects and effects are designated by the same reference numerals, and detailed description thereof will be omitted.

【0029】図7は拡開防止部材46の第4実施例を示
しており、上記第3実施例と異なるところは、規制片4
6cが先端側(旋回機体側)につれて左右方向内方に湾
曲され、これによって規制片46cの先端部が規制部4
7を円滑に通過可能としている点であり、その他の構
成、作用効果については同様であるので同符号を付して
詳細説明を省略する。
FIG. 7 shows a fourth embodiment of the expansion preventing member 46. The difference from the third embodiment is that the restriction piece 4 is used.
6c is curved inward in the left-right direction as the tip end side (turning machine body side) is formed, whereby the tip end portion of the regulation piece 46c is regulated by the regulation portion 4.
7 is the point that can be passed smoothly, and the other configurations and effects are the same, so the same reference numerals are given and detailed description thereof is omitted.

【0030】本発明は、上記実施の形態に限定されるも
のではなく、適宜設計変更することができる。例えば、
規制部をボンネットに設け、該規制部に左右外方から当
接する傾斜状の当接面を有する拡開防止部材を旋回機体
側に設けることができる。また、ボンネットの回動軸線
は、正確な左右方向でなくともよく、左右端部が互いに
前後にずれた傾斜状であってもよい。
The present invention is not limited to the above-mentioned embodiment, but the design can be changed appropriately. For example,
It is possible to provide the restricting portion on the bonnet and to provide the expansion preventing member having an inclined contact surface that abuts against the restricting portion from the left and right sides on the swivel body side. Further, the rotation axis of the bonnet does not have to be in the right and left direction exactly, and may have an inclined shape in which the left and right end portions are displaced forward and backward.

【0031】[0031]

【発明の効果】以上説明したように、本発明の旋回作業
機では、ボンネットの側板部の左右いずれか一方及び/
又は両方の端部と、旋回機体との間に、ボンネットの側
板部の左右端間隔が開くことを阻止する変形阻止手段を
設けたので、旋回作業性や整備性を向上するためにボン
ネットの側板部を平面視略円弧状に形成したものにおい
ても、かかる側板部が左右に拡開するように変形するこ
とを簡単な構造で阻止することができ、長期間の使用に
よってもボンネットの納りを良好にすることができる。
特に、ボンネットを樹脂製とした場合には極めて有用で
ある。
As described above, in the swing working machine of the present invention, either one of the left and right side plates of the bonnet and / or
Or, since deformation preventing means is provided between the both end portions and the turning machine body to prevent the left and right end spaces of the side plate portion of the bonnet from opening, the side plate of the bonnet is improved in order to improve turning workability and maintainability. Even if the part is formed in a generally arcuate shape in plan view, it is possible to prevent the side plate part from deforming so as to expand left and right with a simple structure, and the bonnet can be stored even after long-term use. Can be good.
In particular, it is extremely useful when the bonnet is made of resin.

【0032】また、本発明では、ボンネットは、その天
板部が水平軸線回りに回動可能に旋回機体に取付けられ
ることで上方に開放可能に設けられており、側板部の左
右いずれか一方及び/又は両方の端部には、ボンネット
が閉じられたときに旋回機体側に設けた規制部に左右内
方から当接する拡開防止部材が設けられ、該拡開防止部
材の規制部への当接面は、先端側にしたがって左右方向
内方となる傾斜面に形成されているので、平面視円弧状
に形成されたボンネットの側板部の変形を阻止するため
の拡開防止部材を設けながらも、ボンネットの開閉時に
この開閉防止部材がボンネットと旋回機体との間に挟ま
ってボンネットの開閉動作に弊害を及ぼすことなく、傾
斜面となされた当接面によって円滑に開閉でき、ボンネ
ット閉時にはかかる拡開防止部材によって側板部の左右
端間隔が開くように変形することを防止することができ
る。
Further, according to the present invention, the bonnet is provided so as to be opened upward by attaching the top plate portion of the bonnet to the revolving machine body so as to be rotatable about the horizontal axis. An expansion prevention member that comes into contact with the restriction portion provided on the turning machine body from the left and right when the bonnet is closed is provided at both end portions, and the expansion prevention member contacts the restriction portion. Since the contact surface is formed as an inclined surface that is inward in the left-right direction in accordance with the tip end side, the expansion preventing member for preventing deformation of the side plate portion of the bonnet formed in an arc shape in plan view is provided. When the bonnet is opened / closed, this opening / closing prevention member is sandwiched between the bonnet and the revolving machine body and does not adversely affect the opening / closing operation of the bonnet. It can be prevented from being deformed to open the left and right ends spacing of the side plate portion by expansion preventing member.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施の形態に係る旋回作業機のボンネ
ットの取付構造を示す一部断面平面図である。
FIG. 1 is a partial cross-sectional plan view showing a mounting structure for a bonnet of a swing working machine according to an embodiment of the present invention.

【図2】同取付構造を示す一部断面側面図である。FIG. 2 is a partial cross-sectional side view showing the same mounting structure.

【図3】ボンネットの変形阻止手段を示す拡大平面断面
図である。
FIG. 3 is an enlarged plan sectional view showing deformation preventing means of a bonnet.

【図4】拡開防止部材の第1実施例を示し、(a)は側
面図、(b)は平面図、(c)は背面図である。
FIG. 4 shows a first embodiment of the expansion preventing member, (a) is a side view, (b) is a plan view, and (c) is a rear view.

【図5】拡開防止部材の第2実施例を示し、(a)は側
面図、(b)は平面図、(c)は背面図である。
5A and 5B show a second embodiment of the expansion preventing member, FIG. 5A is a side view, FIG. 5B is a plan view, and FIG. 5C is a rear view.

【図6】第3実施例に係る拡開防止部材をボンネットに
取付けた状態を示す拡大平面断面図である。
FIG. 6 is an enlarged plan sectional view showing a state in which the expansion preventing member according to the third embodiment is attached to the bonnet.

【図7】第4実施例に係る拡開防止部材をボンネットに
取付けた状態を示す拡大平面断面図である。
FIG. 7 is an enlarged plan sectional view showing a state in which the expansion preventing member according to the fourth embodiment is attached to the bonnet.

【図8】旋回作業機の全体側面図である。FIG. 8 is an overall side view of a turning work machine.

【図9】旋回作業機の全体背面図である。FIG. 9 is an overall rear view of the turning work machine.

【図10】旋回作業機の全体平面図である。FIG. 10 is an overall plan view of a swing work machine.

【符号の説明】[Explanation of symbols]

1 旋回作業機 4 旋回機体 5 走行装置 13 ボンネット 13A 側板部 13B 天板部 45 変形阻止手段 46 拡開防止部材 47 規制部 DESCRIPTION OF SYMBOLS 1 Revolving work machine 4 Revolving machine body 5 Traveling device 13 Bonnet 13A Side plate part 13B Top plate part 45 Deformation prevention means 46 Expansion prevention member 47 Restriction part

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 走行装置(5)に旋回可能に装着された
旋回機体(4)に、平面視略円弧状の側板部(13A)
を有するボンネット(13)が開閉自在に設けられた旋
回作業機において、 ボンネット(13)の側板部(13A)の左右いずれか
一方及び/又は両方の端部と、旋回機体(4)との間
に、ボンネット(13)の側板部(13A)の左右端間
隔が開くことを阻止する変形阻止手段(45)を設けた
ことを特徴とする旋回作業機。
1. A side plate portion (13A) having a substantially arcuate shape in a plan view is attached to a revolving unit (4) rotatably mounted on a traveling device (5).
In a swivel work machine in which a bonnet (13) having an openable and closable structure is provided, between the left and right ends and / or both ends of the side plate portion (13A) of the bonnet (13) and the swivel body (4). A swivel work machine characterized in that a deformation preventing means (45) for preventing the left and right end spaces of the side plate portion (13A) of the bonnet (13) from being opened.
【請求項2】 走行装置(5)に旋回可能に装着された
旋回機体(4)にボンネット(13)が開閉可能に設け
られ、該ボンネット(13)は、平面視略円弧状の側板
部(13A)と、天板部(13B)とを備える旋回作業
機において、 前記ボンネット(13)は、その天板部(13B)が水
平軸線回りに回動可能に旋回機体(4)に取付けられる
ことで上方に開放可能に設けられており、前記側板部
(13A)の左右いずれか一方及び/又は両方の端部に
は、ボンネット(13)が閉じられたときに旋回機体
(4)側に設けた規制部(47)に左右内方から当接す
る拡開防止部材(46)が設けられ、該拡開防止部材
(46)の規制部への当接面は、先端側にしたがって左
右方向内方となる傾斜面に形成されていることを特徴と
する旋回作業機。
2. A bonnet (13) is openably and closably provided on a slewing machine body (4) rotatably mounted on a traveling device (5), and the bonnet (13) has a side plate portion having a substantially arcuate shape in a plan view. 13A) and a top plate portion (13B), the bonnet (13) is such that the top plate portion (13B) is attached to the swing body (4) so as to be rotatable about a horizontal axis. It is provided so that it can be opened upward at the left and / or right and left end portions of the side plate portion (13A) and is provided on the swivel body (4) side when the bonnet (13) is closed. The expansion preventing member (46) that abuts against the restricting portion (47) from the inside in the left and right direction, and the contact surface of the expanding preventing member (46) with respect to the restricting portion is inward in the left and right direction according to the tip side. Swivel work characterized by being formed on an inclined surface that becomes Machine.
JP13216696A 1996-05-27 1996-05-27 Turning work machine Expired - Fee Related JP3148638B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13216696A JP3148638B2 (en) 1996-05-27 1996-05-27 Turning work machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13216696A JP3148638B2 (en) 1996-05-27 1996-05-27 Turning work machine

Publications (2)

Publication Number Publication Date
JPH09316928A true JPH09316928A (en) 1997-12-09
JP3148638B2 JP3148638B2 (en) 2001-03-19

Family

ID=15074916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13216696A Expired - Fee Related JP3148638B2 (en) 1996-05-27 1996-05-27 Turning work machine

Country Status (1)

Country Link
JP (1) JP3148638B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113891974A (en) * 2019-06-26 2022-01-04 株式会社久保田 Working machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7191783B2 (en) * 2019-06-26 2022-12-19 株式会社クボタ work machine
JP7126993B2 (en) * 2019-06-26 2022-08-29 株式会社クボタ work machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113891974A (en) * 2019-06-26 2022-01-04 株式会社久保田 Working machine

Also Published As

Publication number Publication date
JP3148638B2 (en) 2001-03-19

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