JPH0352008A - Load conveying vehicle - Google Patents

Abstract

PURPOSE:To enable stable assembling operation by forming a travel-directional front bumper wider than the width of the vehicle body and a rear bumper narrower than the width of the vehicle body. CONSTITUTION:The front bumper 12 which is wider than the width of a frame 2 is provided at the front end of the vehicle and the quantity of projection of the frame 2 from one side to a station side is set equal to the quantity of projection of a holding part 7. The rear bumper 13 is provided at the rear end of the vehicle 1 and as wide as the frame 2. Thus, the rear bumper 13 is as wide as the frame 2, so the rear bumper 13 never interferes with the feet F of an operator to evade inversion, etc., thereby securing safe assembling operation. Further, if there is an obstacle at a precedent position on the travel path 2 of the unmanned carrier where the obstacle interferes with the vehicle 1 and a cassette 8, the front bumper 12 abuts on the obstacle, so the vehicle 1 and cassette 8 are prevented from colliding against the obstacle. Consequently, stable assembling operation becomes possible.

Description

【発明の詳細な説明】 ［産業上の利用分野１ この発明は荷役搬送車両、特に生産ラインにおいて組付
用搭載物を搬送する荷役搬送車両に関するものである． ［従来の技術］ 工場内等において、生産ラインに沿って走行する無人搬
送車には、第３図で示すように、例えばエンジンブロッ
ク３ｌのような被搭載物が搭載され、各組付ステーショ
ンに達すると、走行速度をおとして緩慢に通過する．そ
して、各組付ステーシッンで作業者が所定の組付け作業
を行い、エンジンが完威される。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a cargo handling vehicle, and particularly to a cargo handling vehicle for transporting loads for assembly in a production line. [Prior Art] As shown in Fig. 3, an automatic guided vehicle running along a production line in a factory or the like is loaded with objects such as an engine block 3l, and is mounted at each assembly station. When it reaches that point, it slows down and passes slowly. Then, a worker performs a predetermined assembly work at each assembly station, and the engine is fully operated.

［発明が解決しようとする課題］ この無人搬送車は進行方向の前後両端に設けたバンパ３
３．３４が車幅より広く形成され、作業者が車体に接近
して組付作業を行うと、無人搬送車の進行により後方の
バンパ３４が作業者の足Ｆを引っ掛けることがあり、安
定した組付作業の観点からなお一考の余地を残す． この発明は上記した問題点を鑑みてなされたものであり
、その目的は進行方向前方にある障害物が車両に干渉す
ることを前方のバンパで防止するとともに、後方のバン
パが作業者の足に干渉することなく、安定した組付作業
を保障し得る荷役搬送車を提供することにある． ［課題を解決するための千段］ この発明は前記した目的を達或するために、進行方向前
側のバンパを車体の幅よりも広く、かつ後側のバンパを
車体の幅以下に形成したことをその要旨とする． ［作用］ この発明は上記した手段を採用したことにより、車両の
前進に伴い前側のバンバの移動路の幅は車体の幅より広
く、後側のバンパの移動路の幅は車体の幅以下となる。[Problem to be solved by the invention] This automatic guided vehicle has bumpers 3 provided at both front and rear ends in the direction of travel.
3.34 is formed wider than the vehicle width, and when a worker approaches the vehicle body and performs assembly work, the rear bumper 34 may catch the worker's foot F as the automatic guided vehicle advances, making it difficult to stabilize the vehicle. There is still room for further consideration from the perspective of assembly work. This invention was made in view of the above-mentioned problems, and its purpose is to use a front bumper to prevent obstacles in front of the vehicle from interfering with the vehicle, and to prevent the rear bumper from interfering with the feet of workers. The objective is to provide a cargo handling vehicle that can ensure stable assembly work without interference. [A Thousand Steps to Solve the Problems] In order to achieve the above-mentioned object, the present invention has a front bumper in the direction of travel that is wider than the width of the vehicle body, and a rear bumper that is less than the width of the vehicle body. The gist is: [Function] By adopting the above-mentioned means, the width of the moving path of the front bumper is wider than the width of the vehicle body as the vehicle moves forward, and the width of the moving path of the rear bumper is less than the width of the vehicle body. Become.

［実施例］ 以下、この発明を具体化したー実施例を第１．２図に従
って詳述する． 工場等の生産ラインに沿って走行する車両ｌのフレーム
２の中央部には台座３を介して平面円形状のテーブル４
が配置され、同テーブル４の上面に固着した一対の支持
片５上には被搭載物（本実施例ではエンジンブロック）
Ｅが搭載されている。[Example] Hereinafter, an example that embodies this invention will be described in detail with reference to Fig. 1.2. A planar circular table 4 is mounted on a pedestal 3 in the center of a frame 2 of a vehicle l that runs along a production line in a factory or the like.
is arranged, and on a pair of support pieces 5 fixed to the upper surface of the table 4 is an object to be mounted (in this example, an engine block).
It is equipped with E.

前記フレーム２の一側（ステーション側）には前後一対
の脚部６を介して前後方向に延びるカセット保持部７が
、フレーム２の幅よりステーション側に突出した状態で
設けられている。前記保持部７上には横長に延びる長方
形の枠状をなす小物部品収容具カセット８が載置され、
同カセット８内にはナット、ボルト及びワソシャ等の小
物部品が仕分けされて収容されている。A cassette holder 7 is provided on one side (station side) of the frame 2 and extends in the front-rear direction via a pair of front and rear legs 6 so as to protrude from the width of the frame 2 toward the station side. A small parts storage cassette 8 in the shape of a rectangular frame extending horizontally is placed on the holding portion 7,
Small parts such as nuts, bolts, washers, etc. are sorted and stored in the cassette 8.

また、前記フレーム２の前後両端部には一対の部品棚１
０が配設され、その受板ｌ１上に載置されたエンジンバ
ーツＰが前記小物部品を使用してエンジンブロック已に
組付けられる． 前記車両ｌの前端にはフレーム２の幅より広い前方バン
バ１２が設けられ、フレーム２の一側よりステーション
側への突出量は前記保持部７の突出量と同一に設定され
ている。また、前記車両ｌの後端には後方バンバｌ３が
設けられ、その幅はフレーム２の幅と等しくなっている
． 前記無人搬送車は生産ライン内の走行路上を前進し、組
付けステーションを緩慢な速度で通過する。この通過時
に、ステーションの作業者が前述したように、テーブル
４上に搭載されたエンジンブロック已にバーツＰを組付
ける． 前記組付け作業にあたって、ステーションの作業者は当
該組付け作業に必要とされる小物部品をカセソト８から
正確に選択し、部品棚ｌＯからパーツＰを迅速に取出す
べく無人台車のフレーム２に接近した位置に立って作業
をしても、後方バンバ１３がフレーム２と同一幅なとこ
ろから、この後方バンパ１３が作業者の足Ｆに干渉する
ことはなく、転倒等が回避されて安全な組付作業が保障
される． また、無人台車の走行路２の前方において、車両ｌ及び
カセット８に干渉する位置に障害物が存在するときには
、前方バンバ１２がこの障害物に当接するため、車両１
やカセット８が障害物と衝突することが防止される。In addition, a pair of component shelves 1 are provided at both front and rear ends of the frame 2.
0 is arranged, and the engine part P placed on the receiving plate l1 is assembled to the engine block using the small parts. A front bumper 12 wider than the width of the frame 2 is provided at the front end of the vehicle 1, and the amount of protrusion from one side of the frame 2 toward the station is set to be the same as the amount of protrusion of the holding portion 7. Further, a rear bumper l3 is provided at the rear end of the vehicle l, and its width is equal to the width of the frame 2. The automatic guided vehicle advances on a track within the production line and passes through an assembly station at a slow speed. During this passage, the station worker assembles the bart P onto the engine block mounted on the table 4, as described above. During the assembly work, the station worker accurately selected the small parts required for the assembly work from the cassette tray 8, and approached the frame 2 of the unmanned trolley in order to quickly take out the part P from the parts shelf IO. Even when working while standing, the rear bumper 13 is the same width as the frame 2, so the rear bumper 13 will not interfere with the worker's feet F, and falls will be avoided, resulting in safe assembly. Work is guaranteed. Further, when an obstacle exists in a position that interferes with the vehicle 1 and the cassette 8 in front of the traveling path 2 of the unmanned trolley, the front bumper 12 comes into contact with this obstacle, so the vehicle 1
This prevents the cassette 8 from colliding with obstacles.

［効果］ 以上、詳述したように、この発明によると、進行方向前
方にある障害物が車両に干渉することを前方のバンパで
防止するとともに、後方のバンパが作業者の足に干渉す
ることなく、安定した組付作業を保障し得るという優れ
た効果を発揮する。[Effects] As described in detail above, according to the present invention, the front bumper prevents obstacles in the forward direction of travel from interfering with the vehicle, and the rear bumper prevents interference with the feet of the worker. It has the excellent effect of ensuring stable assembly work without any problems.

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

第１図はこの発明を無人台車に具体化して示す平面図、
第２図はその側面図、第３図は従来例を示す平面図であ
る． 前方バンバ１２、後方バンパ１３。FIG. 1 is a plan view showing this invention embodied in an unmanned trolley;
Fig. 2 is a side view thereof, and Fig. 3 is a plan view showing a conventional example. Front bumper 12, rear bumper 13.

Claims (1)

【特許請求の範囲】[Claims] １、進行方向前側のバンパを車体の幅よりも広く、かつ
後側のバンパを車体の幅以下に形成してなる荷役搬送車
両。1. A cargo handling and transport vehicle in which the front bumper in the direction of travel is wider than the width of the vehicle body, and the rear bumper is less than the width of the vehicle body.