JP2531841Y2 - All-turn type backhoe - Google Patents
All-turn type backhoeInfo
- Publication number
- JP2531841Y2 JP2531841Y2 JP1990104276U JP10427690U JP2531841Y2 JP 2531841 Y2 JP2531841 Y2 JP 2531841Y2 JP 1990104276 U JP1990104276 U JP 1990104276U JP 10427690 U JP10427690 U JP 10427690U JP 2531841 Y2 JP2531841 Y2 JP 2531841Y2
- Authority
- JP
- Japan
- Prior art keywords
- backhoe
- bucket
- boom
- control section
- swivel
- 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
- Shovels (AREA)
- 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、旋回台上に操縦部とバックホー装置とを並
列配備し,前記バックホー装置を、先端のバケットが前
記旋回台の外周部より平面視で旋回中心側に入り込む状
態に折込み格納可能に構成してある全旋回型バックホー
に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] In the present invention, a control unit and a backhoe device are arranged in parallel on a swivel table, and the backhoe device is arranged such that a bucket at the tip is flat from the outer peripheral portion of the swivel table. The present invention relates to an all-turn type backhoe that can be folded and stored so as to enter the turning center side when viewed.
上記バックホーは、バックホー装置におけるブームの
基端側を旋回台の外周部よりも内方側に位置させて、バ
ケットが旋回中心側に入り込み可能に設け、最大旋回径
を小さくさせるようにして狭い空間における掘削作業を
行い易くしたものである。In the backhoe, the base end side of the boom in the backhoe device is located more inward than the outer peripheral portion of the swivel base, and the bucket is provided so as to be able to enter the center of rotation, so that the maximum swing diameter is reduced so that a narrow space is provided. This makes the excavation work easier.
ところが、上記構成のバックホーにおいては、土砂を
すくい上げた状態でバケットを内方側に格納させて旋回
する際、バケット内の土砂がこぼれ落ちてブームの基端
側端部枢支部付近に堆積して、ブームの作動を阻害した
り、油圧配管等の破損を招く等の問題が発生する為、落
下土砂を斜め下方に流下案内する案内板をブームに付設
する構造が考えられた。However, in the backhoe having the above-described configuration, when the bucket is stored inward with the earth and sand scooped up and turned, the earth and sand in the bucket spills down and accumulates near the base end side pivotal support portion of the boom, In order to cause problems such as hindering the operation of the boom and causing breakage of the hydraulic piping and the like, a structure has been considered in which a guide plate for guiding falling earth and sand to flow downward diagonally is attached to the boom.
ところが、上記構成のバックホー装置においては、バ
ケットを内方に入り込ませる為に、ブームは鉛直姿勢よ
りも折込み方向側に姿勢変更するものとなるので、ブー
ム駆動用油圧シリンダがバケットに臨む上方側に位置す
ることになる。その結果、バケットから落下する土砂が
油圧シリンダに降りかかるおそれがあり、ブームに付設
した案内板だけでは保護できないものであった。However, in the backhoe device having the above-described configuration, the boom is to be changed in the folding direction from the vertical position in order to make the bucket enter the inside, so that the boom drive hydraulic cylinder is located on the upper side facing the bucket. Will be located. As a result, earth and sand falling from the bucket may fall on the hydraulic cylinder, and cannot be protected only by the guide plate attached to the boom.
しかも、上記した折込み作動時には、バケットが操縦
部の横側上方側に位置するので、操縦部との間に保護用
の隔壁を設ける必要があるが、土砂の衝突に耐える為に
金属製に設けられ、上下揺動する上記案内板と前記隔壁
との間には余裕間隙を設けねばならない為、この間から
土砂が侵入する欠点もあった。Moreover, at the time of the above-mentioned folding operation, since the bucket is located on the lateral side and upper side of the control section, it is necessary to provide a protective partition between the control section and the bucket. In addition, since an extra clearance must be provided between the vertically swinging guide plate and the partition wall, there is also a disadvantage that earth and sand enter from this space.
本考案は、上記不具合点を解消することを目的とす
る。An object of the present invention is to eliminate the above-mentioned disadvantages.
本考案の特徴構成は、冒頭に記載した全旋回型バック
ホーにおいて、前記バックホー装置におけるブームの揺
動駆動用油圧シリンダの外方側に、格納状態の前記バケ
ットから落下する土砂等を受止めて流下させる保護カバ
ーを付設すると共に、この保護カバーの前記操縦部側端
縁に、前記バックホー装置と前記操縦部との間に立設し
た透視窓付き隔壁に付着した土を掻き落とす弾性材料製
の摺接体を備えてある点にある。The characteristic configuration of the present invention is that, in the all-turn type backhoe described at the beginning, on the outer side of the boom swing drive hydraulic cylinder in the backhoe device, sediment or the like falling from the stored bucket is received and flows down. A protective cover is provided, and a slide made of an elastic material for scraping off soil adhered to a partition with a see-through window provided between the backhoe device and the control section at an edge of the control section on the control section side. The point is that it has a contact body.
バックホー装置を折込み格納して、ブームがその油圧
シリンダ付設側が上向きとなった姿勢まで格納され、か
つ、バケットがその上方側に位置する状態となっても、
こぼれ落ちる土砂は保護カバーによって斜め下方に流下
案内され、油圧シリンダにふりかかるのを阻止できる。
又、バケットが旋回台の内方上方まで格納される結果、
バケットからこぼれ落ちる土砂が操縦部に降りかからな
いよう付設される隔壁に透視窓を設けることで、折込み
作動時の作業状況を容易に目視することができ、作業能
率の低下を防止できることになる。しかも、保護カバー
に弾性材料製の摺接体を付設することで、隔壁との隙間
を無くすことができ、バックホー装置と操縦部との間に
土砂が侵入することがなく、しかも、透視窓に付着した
土を掻き落とすことができて、透視性能を維持できるこ
とになる。Even if the backhoe device is folded and stored, the boom is stored up to the position where the side where the hydraulic cylinder is attached faces upward, and the bucket is positioned above it,
The spilled soil is guided obliquely downward by the protective cover and can be prevented from hitting the hydraulic cylinder.
Also, as a result of the bucket being stored up to the inside of the swivel,
By providing a see-through window on a partition wall provided so that earth and sand spilling from the bucket does not fall onto the control section, the work situation at the time of the folding operation can be easily visually observed, and a decrease in work efficiency can be prevented. Moreover, by providing the protective cover with a sliding contact member made of an elastic material, it is possible to eliminate a gap between the partition wall and the backhoe device and the operation part without intrusion of earth and sand. The adhered soil can be scraped off, and the see-through performance can be maintained.
従って、本考案によれば、油圧シリンダの保護カバー
を合理的に構成することで、油圧シリンダの保護と共に
バケットからのこぼれ落ち土砂がブーム連結点の内方側
に侵入して、ブーム作動を阻害したり、油圧配管等が損
傷するのを防止でき、信頼性が向上するものとなり、し
かも目視用の透視窓を清掃することで作業能率の低下を
阻止できる利点も有する。Therefore, according to the present invention, by rationally configuring the protection cover of the hydraulic cylinder, soil and soil spilled from the bucket enters the inside of the boom connection point together with the protection of the hydraulic cylinder, and hinders the operation of the boom. In addition, it is possible to prevent the hydraulic piping and the like from being damaged, thereby improving reliability, and also has an advantage that the working efficiency can be prevented from being reduced by cleaning the viewing window for visual observation.
以下、本考案の実施例を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第5図に本考案に係るバックホーを示している。この
バックホーは、クローラ走行装置(1)を備えた走行機
台(2)上に縦軸芯周りで全旋回自在な旋回台(3)を
搭載し、この旋回台(3)上に、操縦部(4)とバック
ホー装置(5)とを並列配備すると共に、これらの後方
側に原動部(6)を搭載配備してある。FIG. 5 shows a backhoe according to the present invention. In this backhoe, a swivel (3) that can be swiveled all around a vertical axis is mounted on a traveling machine base (2) having a crawler traveling device (1), and a steering unit is mounted on the swivel (3). (4) and the backhoe device (5) are arranged in parallel, and a driving part (6) is mounted and arranged behind these.
前記バックホー装置(5)は、旋回台(3)から立設
したブラケット(7)に旋回中心近くの横軸芯周りで上
下揺動自在に連結されるブーム(8)、ブーム(8)の
先端部に枢支連結されるアーム(9)、アーム(9)の
先端部に枢支連結されるバケット(10)から成り、これ
らは夫々、ブームシリンダ(C1)、アームシリンダ(C
2)、バケットシリンダ(C3)により揺動駆動するよう
構成してある。そして、このバックホー装置(5)は、
第5図、第6図に示すように、先端のバケット(10)が
旋回台(3)の外周部よりも平面視で旋回中心側に入り
込む状態に折込み格納可能に構成してある。つまり、前
記ブーム(8)を、基端部(8a)、中間部(8b)及び先
端部(8c)に3分割すると共に、これら各部を夫々延設
方向と略直交する縦向き軸芯(P1),(P2)周りで相対
揺動自在に連結し、かつ、中間部(8b)連結部分におい
て、平行四連リンク機構を構成して、基端部(8a)と先
端部(8c)とが平行姿勢を維持しながら、オフセットシ
リンダ(C4)により中間部(8b)を相対揺動させること
で、第6図に示すように、先端部(8c)即ちバケット
(10)を左右にオフセット移動可能に構成してある。そ
して、バケット(10)を操縦部(4)と反対側にオフセ
ットさせてブーム(8)及びアーム(9)を折込み揺動
することで、上記したように旋回台(3)内方側に格納
できるよう構成してある。The backhoe device (5) includes a boom (8), which is connected to a bracket (7) erected from the swivel table (3) so as to be able to swing up and down around a horizontal axis near a swing center, and a tip of the boom (8). Arm (9) pivotally connected to the arm, and a bucket (10) pivotally connected to the tip of the arm (9), which are respectively a boom cylinder (C1) and an arm cylinder (C
2), it is configured to be driven to swing by a bucket cylinder (C3). And this backhoe device (5)
As shown in FIGS. 5 and 6, the bucket (10) at the distal end is configured to be retractable so as to enter the turning center side in plan view from the outer peripheral portion of the turning table (3). That is, the boom (8) is divided into three parts, a base end (8a), an intermediate part (8b), and a front end (8c), and these parts are respectively vertically oriented axially (P). 1 ) and (P 2 ) are connected so as to be able to swing relative to each other, and a parallel quadruple link mechanism is formed at the intermediate part (8b) connecting part, so that the base part (8a) and the tip part (8c) While maintaining the parallel posture, the intermediate portion (8b) is relatively rocked by the offset cylinder (C4), thereby offsetting the tip portion (8c), that is, the bucket (10) to the left and right as shown in FIG. It is configured to be movable. Then, the bucket (10) is offset to the opposite side to the control unit (4), and the boom (8) and the arm (9) are folded and oscillated, so that the bucket (10) is stored inside the swivel (3) as described above. It is configured to be able to.
上記したように、バケット(10)を旋回台(3)の上
方箇所まで入り込み可能に設ける結果、入り込み時に積
載した土砂がバケット(10)からブーム枢支部分にこぼ
れ落ちるおそれがあるので、第1図に示すように、ブー
ム(8)の操縦部(4)と反対側にバケット(10)より
も幅広の流下坂(11)の下端側には、機体側ボンネット
(12)に接触して屈曲がり可能なゴム垂れ(13)を付設
してある。As described above, since the bucket (10) is provided so as to be able to enter the upper part of the swivel table (3), the sediment loaded at the time of entry may fall from the bucket (10) to the boom pivotal support portion. As shown in the figure, the lower end of the downhill (11) wider than the bucket (10) on the opposite side of the control section (4) of the boom (8) comes into contact with the fuselage-side hood (12) and flexes. A bendable rubber droop (13) is attached.
又、バックホー装置(5)と操縦部(4)との間には
防護用の隔壁(14)を立設してあり、この隔壁(14)に
は操縦者が折り込み格納作動を目視可能となるよう透視
窓(15)を設けてある。A protective partition (14) is provided upright between the backhoe device (5) and the control section (4), and the partition (14) allows the operator to visually check the folding and retracting operation. A viewing window (15) is provided.
そして、ブーム(8)に対してブームシリンダ(C1)
よりも外方側に、格納状態のバケット(10)から落下す
る土砂を受止めて斜め下方に流下させるシリンダ保護用
カバー(16)を付設し、ブームシリンダ(C1)のシリン
ダロッド(17)に土砂が降りかかるのを防止してある。
詳述すると、第1図、第2図に示すように、前記保護カ
バー(16)は、シリンダロッド(17)の先端におけるブ
ーム(8)との枢支連結用ボス部(17a)にボルト連結
してあり、第3図及び第4図に示すようにブームシリン
ダ(C1)の伸縮に伴って連動して上下スライドするよう
構成してある。又、保護カバー(16)の下方側の操縦部
(4)側箇所には、前記隔壁(14)と平行な方向に屈曲
部(16a)を形成し、こぼれ落ち土砂が、直接、透視窓
(15)に当たるのを防止する構造としている。ブームシ
リンダ(C1)のシリンダ本体(18)側には、シリンダ伸
長時に前記屈曲部(16a)に連なって防止作用を果たす
ガイド部材(19)を、保護カバー(16)のスライドを許
容する状態で付設してある。And, for the boom (8), the boom cylinder (C1)
A cylinder protection cover (16) for receiving the earth and sand falling from the bucket (10) in the stowed state and flowing diagonally downward is attached to the outside of the boom cylinder (C1). It prevents earth and sand from falling.
More specifically, as shown in FIGS. 1 and 2, the protective cover (16) is bolted to a boss (17a) for pivotal connection with a boom (8) at the tip of a cylinder rod (17). As shown in FIGS. 3 and 4, the boom cylinder (C1) is configured to slide up and down in conjunction with expansion and contraction of the boom cylinder (C1). In addition, a bent portion (16a) is formed in the lower part of the protective cover (16) on the side of the control section (4) in a direction parallel to the partition wall (14), and the spilled earth and sand is directly passed through the see-through window (15). ). On the cylinder body (18) side of the boom cylinder (C1), a guide member (19) that connects to the bent portion (16a) when the cylinder is extended and performs a preventive action is provided in a state where the protective cover (16) is allowed to slide. It is attached.
前記保護カバー(16)並びにガイド部材(19)の操縦
部(4)側端縁には、ブーム(8)の揺動作用に伴って
透視窓(15)に付着した土を掻き落とす弾性材料製の摺
接体としてのゴム材等から成る弾性樹脂シート(20)を
付設してある。The protection cover (16) and the guide member (19) are made of an elastic material which scrapes off the soil attached to the see-through window (15) along with the swinging operation of the boom (8). An elastic resin sheet (20) made of a rubber material or the like is provided as a sliding member.
このようにして、バケット(10)からのこぼれ土砂が
バックホー装置(5)と隔壁(14)と間から落下侵入し
て、ブーム(8)の枢支部分や油圧配管配設部に堆積し
て損傷を与えるおそれを少なくしながら、透視窓(15)
の清掃機能を有することになる。In this way, the spilled soil from the bucket (10) falls from the space between the backhoe device (5) and the bulkhead (14) and accumulates on the pivot portion of the boom (8) and the hydraulic piping arrangement portion. Viewing window (15) while reducing the risk of damage
Cleaning function.
尚、実用新案登録請求の範囲の項に図面との対照を便
利にする為に符号を記すが、該記入により本考案は添付
図面の構成に限定されるものではない。Note that, in the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.
図面は本考案に係る全旋回型バックホーの実施例を示
し、第1図は保護カバー配設部の正面図、第2図は保護
カバー配設部の斜視図、第3図、第4図は保護カバー配
設部の側面図、第5図は全体側面図、第6図は平面図で
ある。 (3)……旋回台、(4)……操縦部、(5)……バッ
クホー装置、(8)……ブーム、(10)……バケット、
(16)……保護カバー、(20)……摺接体、(C1)……
油圧シリンダ。The drawings show an embodiment of the all-turn type backhoe according to the present invention. FIG. 1 is a front view of a protective cover disposing portion, FIG. 2 is a perspective view of the protective cover disposing portion, and FIGS. FIG. 5 is an overall side view of the protective cover arranging portion, and FIG. 6 is a plan view. (3) ... turning table, (4) ... control unit, (5) ... backhoe device, (8) ... boom, (10) ... bucket,
(16) Protective cover (20) Sliding body (C1)
Hydraulic cylinder.
Claims (1)
ー装置(5)とを並列配備し、前記バックホー装置
(5)を、先端のバケット(10)が前記旋回台(3)の
外周部よりも平面視で旋回中心側に入り込む状態に折込
み格納可能に構成してある全旋回型バックホーであっ
て、前記バックホー装置(5)におけるブーム(8)の
揺動駆動用油圧シリンダ(C1)の外方側に、格納状態の
前記バケット(10)から落下する土砂等を受止めて流下
させる保護カバー(16)を付設すると共に、この保護カ
バー(16)の前記操縦部(4)側端縁に、前記バックホ
ー装置(5)と前記操縦部(4)との間に立設した透視
窓付き隔壁(14)に付着した土を掻き落とす弾性材料製
の摺接体(20)を備えてある全旋回型バックホー。A steering unit (4) and a backhoe device (5) are arranged in parallel on a swivel (3), and the backhoe (5) is mounted on the swivel (3) with a bucket (10) at the tip. An all-swing backhoe configured to be able to be folded and stored so as to enter into a turning center side in plan view from an outer peripheral portion of the boom (8) in the backhoe device (5). A protection cover (16) is provided on the outer side of C1) to receive earth and sand falling from the stored bucket (10) and flow down the same, and the control section (4) of the protection cover (16) is provided. A sliding contact body (20) made of an elastic material for scraping off soil adhered to a partition (14) with a see-through window provided between the backhoe device (5) and the control section (4) is provided on the side edge. All swing type backhoe provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990104276U JP2531841Y2 (en) | 1990-10-02 | 1990-10-02 | All-turn type backhoe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990104276U JP2531841Y2 (en) | 1990-10-02 | 1990-10-02 | All-turn type backhoe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0461148U JPH0461148U (en) | 1992-05-26 |
JP2531841Y2 true JP2531841Y2 (en) | 1997-04-09 |
Family
ID=31849492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990104276U Expired - Lifetime JP2531841Y2 (en) | 1990-10-02 | 1990-10-02 | All-turn type backhoe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2531841Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017122373A (en) * | 2016-01-08 | 2017-07-13 | コベルコ建機株式会社 | Work machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6437560U (en) * | 1987-08-31 | 1989-03-07 |
-
1990
- 1990-10-02 JP JP1990104276U patent/JP2531841Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0461148U (en) | 1992-05-26 |
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