JPH0872743A - Canopy support structure for work vehicle - Google Patents

Abstract

PURPOSE: To provided safe transportation without any damage in the case of moving a work vehicle mounted on a transportation vehicle by constituting a canopy support structure in such a state as supporting a canopy base member by two points, namely, a rocking fulcrum between the base end member and a base member, and a swing fulcrum between a support member and the base member with the canopy laid down. CONSTITUTION: A coupling member 7c which is welded at the bottom of a canopy 7 which covers an operation seat of a small-size backhole from the upward is fixed to a base end member 8 with a bolt 9. Two pairs of brackets 12 are projected to a base material 10 fixed on the top face of a prime mover 5 and the front part of the base end member 8 is pivotally supported by its front part so as to swing around a fulcrum P. And a portal support member 14 is pivotally supported by the rear part of the brackets 12 so as to swing around a fulcrum Q. When the canopy T is fixed by being laid down, after a bolt 16 is removed from a coupling block 14c so that the canopy 7 is laid down, the bolt 16 is inserted from the rear side of a through hole formed in the base end member 8 so that it is fixed by threadly attached to the coupling block 14c.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明は、バックホウ、ローダ、
トラクター等の作業車に備えるキャノピーの支持構造に
関する。BACKGROUND OF THE INVENTION The present invention relates to a backhoe, a loader,
The present invention relates to a support structure for a canopy provided in a work vehicle such as a tractor.

【０００２】[0002]

【従来の技術】作業車におけるキャノピーは転座席に着
座した作業者に対する日除けおよび塵埃からの保護を図
るために設けられるものであり、その上端部の地上高は
相当高いものとなっている。そのため、トラック等の運
搬車両に作業車を積載して移動する場合、あるいは、作
業車を倉庫に格納保管しておく場合、キャノピーが邪魔
になることがある。そして、このような場合、キャノピ
ーが邪魔にならないようにする手段としては、例えばキ
ャノピーを着脱できるようにしたり、あるいは、キャノ
ピーをその基端や支柱中間で倒伏できるようにすること
が考えられている。2. Description of the Related Art A canopy in a work vehicle is provided to protect a worker sitting on a turning seat from awning and protection from dust, and the ground height of its upper end is considerably high. Therefore, when the work vehicle is loaded on a transportation vehicle such as a truck and moved, or when the work vehicle is stored and stored in a warehouse, the canopy may be an obstacle. Then, in such a case, as a means for keeping the canopy out of the way, it is considered that the canopy can be attached or detached, or the canopy can be laid down at the base end or the middle of the support column. .

【０００３】[0003]

【発明が解決しようとする課題】しかし、キャノピーを
着脱する構造では、その操作が煩わしいのみならず、取
り外したキャノピーを別途運搬あるいは保管する必要が
あって、操作性および管理面に難点がある。また、キャ
ノピーを基端や支柱中間で起伏揺動する構造によると、
着脱式のものに見られた上記不具合は解消されるが、特
に運搬車両に作業車を積載して移動する場合に問題を残
すものであった。つまり、キャノピーを倒伏した状態で
は、揺動支点部を強く締め込んで倒伏姿勢を固定するの
であるが、作業車を運搬車両に積載して移動する際に
は、相当大きい走行振動や衝撃が積載した作業車にかか
ることが多く、倒伏したキャノピーが慣性でガタつい
て、揺動支点部が損傷するおそれが多分にあり、これを
防ぐために倒伏したキャノピーにロープやバンド等を掛
けて固定するような手間をかけていた。本発明は、この
ような点に着目してなされたものであって、比較的簡単
な構造で倒伏したキャノピーを確実に固定できるように
することを目的とする。However, in the structure for attaching and detaching the canopy, not only the operation is troublesome, but also the removed canopy needs to be transported or stored separately, which is a problem in terms of operability and management. Also, according to the structure in which the canopy undulates at the base end and the middle of the column,
Although the above-mentioned inconveniences found in the detachable type have been solved, there still remains a problem particularly when a work vehicle is loaded on a transport vehicle and moved. In other words, when the canopy is laid down, the rocking fulcrum is tightened tightly to fix the laid-down posture. There is a possibility that the fallen canopy will be rattled due to inertia due to inertia, and the rocking fulcrum part may be damaged.To prevent this, it is necessary to hang rope or band etc. It took a lot of time. The present invention has been made in view of such a point, and an object thereof is to make it possible to reliably fix a fallen canopy with a relatively simple structure.

【０００４】[0004]

【課題を解決するための手段】上記目的を達成するため
の本発明特徴構成は、キャノピーの支柱を立設支持した
基端部材を、機体側に固定配備したベース部材上に揺動
可能に枢支連結し、前記基端部材を前記ベース部材上に
連結したキャノピー起立状態と、前記基端部材と前記ベ
ース部材との連結を解除して基端部材をベース部材上か
ら揺動浮上させたキャノピー倒伏状態とに切り換え可能
に構成するとともに、前記基端部材の揺動支点と平行な
支点を中心に揺動可能な支持部材を前記ベース部材に枢
支連結し、前記キャノピー倒伏状態において、前記支持
部材の遊端部を前記基端部材に連結可能に構成してある
点にある。In order to achieve the above object, the present invention is characterized in that a base end member having a canopy strut standingly supported is pivotally mounted on a base member fixedly arranged on the body side. A canopy in which the base end member is supported and connected to the base member, and a canopy in which the base member is rocked and floated above the base member by releasing the connection between the base member and the base member. A support member that is configured to be switchable to a fallen state and that is swingable around a fulcrum parallel to the swing fulcrum of the base end member is pivotally connected to the base member, and the support is provided in the canopy fallen state. The free end portion of the member is connectable to the base member.

【０００５】[0005]

【作用】上記構成によると、キャノピー倒伏状態では、
ベース部材上に揺動浮上した姿勢のキャノピー基端部材
は、基端部材とベース部材との揺動支点と、支持部材と
ベース部材との揺動支点との２点で支持されることにな
り、倒伏したキャノピーに加わる振動や衝撃による負荷
は各揺動支点に分散されることになる。[Operation] According to the above configuration, in the canopy laid state,
The canopy base end member swinging and floating above the base member is supported at two points, that is, a swing fulcrum between the base end member and the base member and a swing fulcrum between the support member and the base member. The load due to the vibration or shock applied to the fallen canopy is distributed to each swing fulcrum.

【０００６】[0006]

【発明の効果】従って、本発明によれば、キャノピーを
倒伏した状態では基端部材がベース部材に２点支持状態
で十分な強度をもって確実に固定でき、作業車を運搬車
に搭載して移動する際に振動や衝撃が加わっても、連結
部位に損傷や変形をもたらすことなく安全に運搬移送す
ることができる。According to the present invention, therefore, when the canopy is laid down, the base end member can be securely fixed to the base member with sufficient strength while being supported at two points, and the work vehicle is mounted on the transport vehicle and moved. Even if vibration or impact is applied during the operation, the connection can be safely transported and transferred without causing damage or deformation.

【０００７】[0007]

【実施例】図５に本発明を適用した作業車の一例である
小型バックホウが示されている。このバックホウは、ク
ローラ走行装置１およびドーザ２を備えた走行車体上に
旋回台３が全旋回可能に搭載され、この旋回台３の前部
に掘削装置４が連結されるとともに、旋回台３上に原動
部５および操縦座席６等が装備された構造となってい
る。FIG. 5 shows a small backhoe as an example of a work vehicle to which the present invention is applied. In this backhoe, a swivel base 3 is mounted on a traveling vehicle body provided with a crawler traveling device 1 and a dozer 2 so that the swivel base 3 can fully swivel. It has a structure in which the driving part 5 and the control seat 6 are equipped.

【０００８】前記操縦座席６を上方から覆うキャノピー
７が前記原動部４に上に備えられている。このキャノピ
ー７は、丸パイプ材を前後方向視でＵ字状に屈曲形成し
てなる支柱７ａの上端に天蓋部７ｂを連結して構成され
ており、操縦座席６の上方を覆う起立姿勢と、前方に倒
れ込んだ倒伏姿勢とに切り換え揺動可能に構成されてい
る。A canopy 7 for covering the control seat 6 from above is provided on the prime mover 4. This canopy 7 is configured by connecting a canopy portion 7b to an upper end of a pillar 7a formed by bending a round pipe material in a U shape in a front-rear direction, and has a standing posture that covers an upper portion of the control seat 6. It is configured to be swingable by switching to a lying posture in which it falls forward.

【０００９】前記キャノピー７の起伏揺動構造が図１〜
図４に示されている。前記キャノピー７の下端には板材
を屈曲した連結部材７ｃが溶接固定されており、この連
結部材７ｃが平板状の基端部材８の上面に４本のボルト
９によって締めつけ固定されている。また、前記原動部
５の上面には、平板状のベース部材１０が４本のボルト
１１によって締めつけ固定されており、このベース部材
１０の左右に突設した２組のブラケット１２の前部に、
前記基端部材８の前部が横向きの支点Ｐを中心に揺動可
能に枢支連結されている。そして、ベース部材１０の左
右に溶接固設した受け部１０ａ上に基端部材８を水平姿
勢に載せ付け支持した状態で、基端部材８の前後左右を
４本のボルト１３で受け部１０ａに締めつけ固定するよ
う構成されている。The undulating structure of the canopy 7 is shown in FIGS.
It is shown in FIG. A connecting member 7c formed by bending a plate material is welded and fixed to the lower end of the canopy 7, and the connecting member 7c is fixed to the upper surface of a flat base member 8 by four bolts 9. A flat plate-shaped base member 10 is fastened and fixed to the upper surface of the driving portion 5 with four bolts 11, and two sets of brackets 12 projecting to the left and right of the base member 10 are attached to the front portions thereof.
The front portion of the base end member 8 is pivotally connected so as to be swingable about a lateral fulcrum P. Then, in a state where the base end member 8 is mounted and supported in a horizontal posture on the receiving portion 10a welded and fixed to the left and right of the base member 10, the front and rear and left and right sides of the base end member 8 are fixed to the receiving portion 10a with four bolts 13. It is configured to be clamped and fixed.

【００１０】左右の前記ブラケット１２の後部には、門
形の支持部材１４が横向きの支点Ｑを中心に揺動可能に
枢支連結されている。この支持部材１４は、各ブラケッ
ト１２に枢支連結されるとともに、基端部材８の後部に
形成された透孔１５を貫通して装着された左右一対のア
ーム部１４ａと、両アーム部１４ａの先端間に架設され
た角材製の横バー１４ｂとからなり、この横バー１４ｂ
の左右中央部ににおける前面に連結ブロック１４ｃが突
設されるとともに、この連結ブロック１４ｃにボルト
（連結具）１６がねじ込み装着されている。A gate-shaped support member 14 is pivotally connected to the rear portions of the left and right brackets 12 so as to be swingable about a lateral fulcrum Q. The support member 14 is pivotally connected to each bracket 12, and a pair of left and right arm portions 14 a mounted through the through hole 15 formed in the rear portion of the base end member 8 and both arm portions 14 a. It consists of a horizontal bar 14b made of timber that is installed between the ends.
A connecting block 14c is provided so as to project from the front surface in the left and right central portion of the, and a bolt (connecting tool) 16 is screwed into the connecting block 14c.

【００１１】起立姿勢のキャノピー７を倒伏して固定す
るには次ぎのような手順をとる。先ず、ボルト１１を抜
き取って基端部材８を自由状態にするとともに、連結ブ
ロック１４ｃからボルト１６を取り外しておく。次ぎ
に、キャノピー７を前方に倒伏させる。基端部材８が支
点Ｐ周りに揺動してベース部材１０から浮上するに連れ
て支持部材１４も支点Ｑを中心に前方に倒伏されてゆ
き、キャノピー７が所定の角度まで倒伏すると、横バー
１４ｂおよび連結ブロック１４ｃの下端面が基端部材８
の上面に当接し、基端部材８のそれ以上の前方揺動が阻
止される。次ぎに、連結ブロック１４ｃから抜き取って
おいたボルト１６を、基端部材８の後部中央に形成して
ある透孔１７に裏面側から挿入して連結ブロック１４ｃ
にねじ込み装着する。このようにして支持部材１４の遊
端部に連結された基端部材８は、もはや前後いづれの方
向へも揺動不能となる。In order to lay down and fix the standing canopy 7, the following procedure is taken. First, the bolt 11 is pulled out to set the base end member 8 in a free state, and the bolt 16 is removed from the connection block 14c. Next, the canopy 7 is laid down forward. As the base member 8 swings around the fulcrum P and rises above the base member 10, the support member 14 also falls forward about the fulcrum Q, and when the canopy 7 falls to a predetermined angle, the horizontal bar is pulled. 14b and the lower end surface of the connection block 14c are the base end members 8
Of the base end member 8 and further forward swing of the base end member 8 is prevented. Next, the bolt 16 extracted from the connecting block 14c is inserted into the through hole 17 formed in the rear center of the base end member 8 from the rear surface side to connect the connecting block 14c.
Install by screwing into. The base end member 8 connected to the free end portion of the support member 14 in this manner can no longer swing in either the front or rear direction.

【００１２】〔別実施例〕 倒伏姿勢の基端部材８と支持部材１４の連結ブロッ
ク１４ｃとを連結するに、前記ボルト１６に代えて頭付
きピンとこれに装着する抜け止め用ベータピンを連結具
として使用することも可能である。 連結部材７ｃを基端部材８に連結するボルト９の配
列ピッチと、ベース部材１０を原動部５の上面に連結す
るボルト１１の配列ピッチとは同一に設定されており、
キャノピー７を倒伏可能に装着しない仕様の機種では、
キャノピー７下端の連結部材７ｃを直接に原動部５の上
面にボルト連結することになる。[Other Embodiments] In order to connect the base end member 8 in the lying position and the connection block 14c of the support member 14, a headed pin and a retainer beta pin to be attached thereto instead of the bolt 16 are used as a connecting tool. It is also possible to use. The arrangement pitch of the bolts 9 that connect the connecting member 7c to the base member 8 and the arrangement pitch of the bolts 11 that connect the base member 10 to the upper surface of the driving portion 5 are set to be the same.
For models that do not equip the canopy 7 so that it can be lodged,
The connecting member 7c at the lower end of the canopy 7 is directly bolted to the upper surface of the driving portion 5.

【００１３】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

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

【図１】キャノピー基部の縦断側面図 （イ）起立状態 （ロ）倒伏状態[Figure 1] Vertical side view of the canopy base (a) Standing state (b) Falling state

【図２】キャノピー基部の縦断側面図FIG. 2 is a vertical side view of the canopy base.

【図３】キャノピー基部の背面図FIG. 3 Rear view of the canopy base

【図４】キャノピー基部を示す分解斜視図FIG. 4 is an exploded perspective view showing a canopy base portion.

【図５】バックホウの全体側面図[FIG. 5] Overall side view of the backhoe

【符号の説明】[Explanation of symbols]

７ キャノピー ７ａ 支柱 ８ 基端部材 １０ ベース部材 １４ 支持部材 Ｐ 揺動支点 Ｑ 支点 7 Canopy 7a Strut 8 Base member 10 Base member 14 Support member P Swing fulcrum Q fulcrum

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 キャノピー（７）の支柱（７ａ）を立設
支持した基端部材（８）を、機体側に固定配備したベー
ス部材（１０）上に揺動可能に枢支連結し、前記基端部
材（８）を前記ベース部材（１０）上に連結したキャノ
ピー起立状態と、前記基端部材（８）と前記ベース部材
（１０）との連結を解除して基端部材（８）をベース部
材上から揺動浮上させたキャノピー倒伏状態とに切り換
え可能に構成するとともに、前記基端部材（８）の揺動
支点（Ｐ）と平行な支点（Ｑ）を中心に揺動可能な支持
部材（１４）を前記ベース部材（１０）に枢支連結し、
前記キャノピー倒伏状態において、前記支持部材（１
４）の遊端部を前記基端部材（８）に連結可能に構成し
てあることを特徴とする作業車のキャノピー支持構造。1. A base end member (8) erected and supporting a column (7a) of a canopy (7) is swingably pivotally connected to a base member (10) fixedly arranged on the body side, The canopy standing state in which the base member (8) is connected to the base member (10) and the connection between the base member (8) and the base member (10) are released to open the base member (8). It is configured so that it can be switched to a canopy fallen state in which it is oscillated and levitated from above the base member, and is swingably supported around a fulcrum (Q) parallel to the fulcrum fulcrum (P) of the base end member (8). A member (14) is pivotally connected to the base member (10),
In the canopy laid state, the support member (1
4) A canopy support structure for a work vehicle, wherein the free end portion of 4) can be connected to the base end member (8).