JP4984052B2 - Transport equipment - Google Patents

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JP4984052B2
JP4984052B2 JP2007066094A JP2007066094A JP4984052B2 JP 4984052 B2 JP4984052 B2 JP 4984052B2 JP 2007066094 A JP2007066094 A JP 2007066094A JP 2007066094 A JP2007066094 A JP 2007066094A JP 4984052 B2 JP4984052 B2 JP 4984052B2
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transport
support
path
traveling body
section
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JP2008222406A (en
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尚士 京谷
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Daifuku Co Ltd
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Daifuku Co Ltd
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Description

本発明は、被搬送物を昇降させることができて自動車の製造ラインなどに活用できる搬送設備に関するものである。   The present invention relates to a transport facility that can raise and lower an object to be transported and can be used in an automobile production line or the like.

一定経路に沿って搬送する被搬送物の移動レベルを所定区間で上下に変えることができる搬送設備、換言すれば、被搬送物支持具を搬送経路中の所定箇所で昇降させることができる搬送設備は、種々のものが知られている。例えば、特許文献1に記載される搬送設備は、一定走行経路を走行する搬送用走行体にリンク機構を利用した昇降支持手段を介して被搬送物支持具を吊り下げ、前記昇降支持手段のリンク機構をモーター駆動のネジ軸で駆動することにより、被搬送物支持具を昇降移動させるように構成したものである。
特開2007−8621号公報
Conveying equipment that can change the movement level of an object to be conveyed along a certain route up and down in a predetermined section, in other words, an conveying facility that can raise and lower an object support at a predetermined position in the conveying path. Various types are known. For example, the transport facility described in Patent Document 1 suspends a transported object support tool via a lift support means using a link mechanism on a transport traveling body that travels on a fixed travel route, and links the lift support means. By driving the mechanism with a motor-driven screw shaft, the object support is moved up and down.
JP 2007-8621 A

上記のような特許文献1に記載の従来の搬送設備では、昇降支持手段を駆動するための駆動手段(モーターやネジ軸など)が各搬送用走行体に搭載される構成であるため、搬送経路に沿って各搬送用走行体に対する給電設備も必要であることと相俟って、自動車製造ラインのように1つの搬送経路中に多数台の搬送用走行体が設けられる搬送設備では、搬送設備全体の設備コストが非常に高くつく。特に、被搬送物支持具で支持させた自動車ボディーに対し人手により部品を組み付ける組立てラインにおいて上記の搬送設備を利用する場合、当該組立てラインを横断する横断路を通過するときのみ被搬送物支持具を当該横断路より高いレベルまで上昇させるだけであって、被搬送物支持具を昇降させなければならない機会は少ないので、コスト対効果が低い。   In the conventional transport facility described in Patent Document 1 as described above, a drive unit (such as a motor or a screw shaft) for driving the lifting support unit is mounted on each transport traveling body. In combination with the need for power supply equipment for each transport traveling body along the transport line, a transport facility in which a large number of transport traveling bodies are provided in one transport path, such as an automobile production line, Overall equipment costs are very high. In particular, in the case where the above-described transport facility is used in an assembly line in which parts are manually assembled to an automobile body supported by a transported object support, the transported object support is only passed through a crossing path crossing the assembly line. Is only raised to a level higher than that of the crossing path, and there are few opportunities to raise and lower the transported object support tool, so the cost effectiveness is low.

本発明は、上記のような従来の問題点を解消し得る搬送設備を提供することを目的とするものであって、請求項1に記載の搬送設備は、後述する実施形態の参照符号を付して示すと、一定走行経路を走行する搬送用走行体11に、被搬送物支持具(ワーク支持用ハンガー13)を昇降自在に支持する昇降支持手段12と、上下揺動により前記昇降支持手段12を操作して前記被搬送物支持具(ワーク支持用ハンガー13)を昇降させる操作レバー42が設けられ、この操作レバー42に軸支されたカム従動ローラー43に係合して当該操作レバー42の姿勢を規制することにより前記昇降支持手段12を介して前記被搬送物支持具(ワーク支持用ハンガー13)の高さを規制するカムレール44A,44Bが前記走行経路に沿って設けられた搬送設備であって、前記搬送用走行体11の走行経路が、並列する往行搬送経路部10aと復行搬送経路部10bとを有する搬送設備において、前記往行搬送経路部10aと復行搬送経路部10bは、床面上の直線状通路2に沿って当該直線状通路2の上側に配置され、前記直線状通路2には当該通路2を跨ぐように門形の支持用架台1が併設され、前記往行搬送経路部10aと復行搬送経路部10bを横断して前記直線状通路2とつながる横断路45が設けられ、前記往行搬送経路部10aと復行搬送経路部10bには、被搬送物支持具(ワーク支持用ハンガー13)を前記直線状通路2の横側方の低レベルで走行させて前記被搬送物支持具(ワーク支持用ハンガー13)に支持された被搬送物に対する作業ラインを構成する区間(組立て作業ライン)と、前記横断路45より上方の高レベルで被搬送物支持具(ワーク支持用ハンガー13)を走行させる区間(横断路乗り越え通過区間)が設けられ、前記支持用架台1には、前記搬送用走行体11の走行経路を構成するガイドレール27,28、前記カムレール44A,44B、及び前記両区間の間に位置するレベル切換装置46,47が、前記直線状通路2より上側において支持され、前記レベル切換装置46,47は、前記カム従動ローラー43が前記搬送用走行体11の走行に伴って水平方向に進入退出自在な昇降カムレール48と、この昇降カムレール48を、前記レベル切換装置46,47に対して上手側に位置する区間の前記カムレール44A又は44Bに接続する位置と、前記レベル切換装置46,47に対して下手側に位置する区間の前記カムレール44B又は44Aに接続する位置との間で昇降させる昇降駆動手段(49〜51)を備えた構成となっている。 An object of the present invention is to provide a transport facility that can solve the above-described conventional problems, and the transport facility according to claim 1 is provided with reference numerals of embodiments to be described later. If you shown, the conveying traveling body 11 to travel a predetermined travel path, a lifting support means 12 for supporting the conveyed object support (the workpiece support hanger 13) vertically movably, the elevating support means by vertical movement 12 is provided , and an operation lever 42 is provided to raise and lower the object support (work support hanger 13). The operation lever 42 engages with a cam driven roller 43 pivotally supported by the operation lever 42. cam rail 44A posture through the elevating support means 12 by regulating the regulating the height of the conveyed object support (workpiece support hanger 13), 44B are provided along the travel path A transmission facility, the traveling route of the conveying traveling body 11, the transport facility and a forward stroke conveying path 10a and the go-around conveying path 10b in parallel, the forward stroke conveying path 10a and the go-around transport The path portion 10b is disposed above the linear path 2 along the linear path 2 on the floor, and the linear path 2 is provided with a portal-shaped support base 1 so as to straddle the path 2. A crossing path 45 is provided that crosses the forward transport path section 10a and the return transport path section 10b and is connected to the linear path 2, and the forward transport path section 10a and the return transport path section 10b include A transported object supported by the transported object support (work supporting hanger 13) by running the transported object support (work supporting hanger 13) at a low level lateral to the linear passage 2. Sections that constitute the work line for Industry line), and a section (crossing passage crossing passage section) for running the object support (work support hanger 13) at a high level above the crossing path 45, and the support platform 1 includes: The guide rails 27 and 28, the cam rails 44A and 44B, and the level switching devices 46 and 47 that are positioned between the two sections constituting the travel path of the transport traveling body 11 are supported above the linear passage 2. The level switching devices 46 and 47 are configured such that the cam driven roller 43 is movable up and down in the horizontal direction as the transport traveling body 11 travels, and the lifting cam rail 48 is connected to the level switching device. 46, 47 is connected to the cam rail 44A or 44B in the section located on the upper side with respect to 46, 47 and below the level switching devices 46, 47. It is the structure provided with the raising / lowering drive means (49-51) which raises / lowers between the position connected to the said cam rail 44B or 44A of the area located in the hand side .

上記構成の本発明を実施するについて、具体的には請求項2に記載のように、前記支持用架台1に支持されて搬送用走行体11の走行経路を構成するガイドレールは、前記搬送用走行体11の上下両側に設けられたトロリー18b,18c,21a,21bを介して当該搬送用走行体11を走行可能に支持する下側ガイドレール27と上側ガイドレール28とで構成し、前記昇降支持手段12は、前記支持用架台1の横側方に配置されて前記被搬送物支持具(ワーク支持用ハンガー13)を片持ち状に上下移動自在に支持するように構成することができる。 In carrying out the present invention with the above configuration, specifically, as described in claim 2, the guide rail supported by the support base 1 and constituting the travel path of the transport traveling body 11 is the transport rail. A lower guide rail 27 and an upper guide rail 28 that support the transport traveling body 11 through the trolleys 18b, 18c, 21a, and 21b provided on both upper and lower sides of the traveling body 11 are configured to move up and down. support means 12 can you to configured to vertically movably supported on the shape has been placed next side of the supporting frame 1 and the conveyed object support (the workpiece support hanger 13) pieces .

又、請求項3に記載のように、前記昇降支持手段12は、搬送用走行体11にその走行方向と平行に前後移動自在な可動体33と、この可動体33に、当該可動体33の移動方向と平行な垂直面に沿って上下方向に揺動自在に軸支され且つ遊端部で前記被搬送物支持具(ワーク支持用ハンガー13)を吊り下げる揺動リンク35aと、この揺動リンク35aの中間位置と前記搬送用走行体11との間に介装された短リンク(第三揺動リンク39)とを備えた構造とし、この短リンク(第三揺動リンク39)により、前記被搬送物支持具(ワーク支持用ハンガー13)が、前記揺動リンク35aの上下方向の揺動と前記可動体33の前後移動を伴って垂直に上下移動するように構成し、前記操作レバー42は、前記短リンク(第三揺動リンク39)と連動連結させることができる。この場合、請求項4に記載のように、被搬送物支持具(ワーク支持用ハンガー13)を低レベルで走行させる区間に搬送用走行体11があるとき、前記揺動リンク35aが搬送用走行体11の走行方向に対して斜め後方下方に延出すると共に、前記操作レバー42が斜め後方上方に延出するように構成し、被搬送物支持具(ワーク支持用ハンガー13)を高レベルで走行させる区間(横断路乗り越え通過区間)に搬送用走行体11があるときは、前記揺動リンク35aが搬送用走行体11の走行方向に対して斜め後方上方に延出すると共に、前記操作レバー42が斜め後方下方に延出するように構成することができる。 According to a third aspect of the present invention, the elevating support means 12 includes a movable body 33 that can move back and forth in parallel with the traveling direction of the transporting traveling body 11, and the movable body 33. A swing link 35a that is pivotally supported in a vertically swingable manner along a vertical plane parallel to the moving direction and that suspends the object support (work support hanger 13) at the free end, and this swing A short link (third swing link 39) interposed between the intermediate position of the link 35a and the transport traveling body 11 is provided, and by this short link (third swing link 39), The transport object support tool (work support hanger 13) is configured to vertically move with the vertical swing of the swing link 35a and the back and forth movement of the movable body 33, and the operation lever. 42 is the short link (third swing link 3 ) And it can be interlocked. In this case, as described in claim 4 , when the transporting traveling body 11 is in a section where the object support (work supporting hanger 13) travels at a low level, the swing link 35a is transported for transporting. The operation lever 42 extends obliquely backward and upward with respect to the traveling direction of the body 11, and the object support tool (work support hanger 13) is at a high level. When the traveling body 11 is in the section to be traveled (crossing road crossing passage section), the swing link 35a extends obliquely rearward and upward with respect to the traveling direction of the traveling body 11, and the operation lever It can comprise so that 42 may extend diagonally back downward .

上記請求項1に記載の本発明に係る搬送設備によれば、走行経路側に架設したカムレールによって、各搬送用走行体側の昇降支持手段における操作レバーのカム従動ローラーを介して被搬送物支持具の移動レベルを規制する構成であるため、自動車製造ラインのように1つの搬送経路中に多数台の搬送用走行体が設けられる搬送設備であっても、搬送経路側に各搬送用走行体に対する給電設備も不要であることと相俟って、搬送設備全体の設備コストを大幅に低減することができる。しかも特別な制御を要することなく、カムレールのレベルによって一元的に各搬送用走行体の被搬送物支持具の移動レベルを規制できるのであるから、制御系の故障や誤動作で被搬送物支持具の移動レベルが不測に変動するようなこともなく、安全且つ確実に所期の搬送作用を遂行できる。   According to the transport facility of the present invention as set forth in claim 1, the object support device to be transported by the cam rails erected on the travel path side via the cam driven roller of the operation lever in the lifting support means on the transport body side. Therefore, even in a transport facility in which a large number of transport traveling bodies are provided in a single transport path as in an automobile production line, each transport travel body is provided on the transport path side. Coupled with the fact that no power supply equipment is required, the equipment cost of the entire transport equipment can be greatly reduced. In addition, since the level of movement of the transport object support of each transport traveling body can be centrally regulated by the level of the cam rail without requiring special control, the control system of the transport object support tool can be controlled by a malfunction or malfunction of the control system. The intended transport operation can be performed safely and reliably without the movement level fluctuating unexpectedly.

更に、本発明の構成によれば、被搬送物支持具を床面に近い低レベルで移動させる組立て作業ライン途中に横断路が存在しているレイアウトにおいて、被搬送物支持具をして当該横断路を乗り越え通過させる場所では、その上手側のレベル切換装置により急速に被搬送物支持具を横断路乗り越えレベルまで上昇させ、係る状態で被搬送物支持具をして横断路上を通過させ、その後、下手側のレベル切換装置により急速に被搬送物支持具を元の作業レベル(低レベル)まで降下させ、再び元の作業レベル(低レベル)で被搬送物支持具を移動させることができるので、搬送用走行体の走行に伴ってカム従動ローラー(操作レバー)を無理なく円滑に押し上げ又は押し下げることができる程度の角度で傾斜させた傾斜カムレールにより被搬送物支持具のレベル切り換えを行わせる場合と比較して、横断路乗り越え通過区間によって作業ラインの有効経路長さが短くなる度合いを小さく抑えることができる。又、搬送用走行体の走行抵抗が被搬送物支持具のレベル切り換えによって大幅に増大することがなく、搬送用走行体の走行駆動手段の構成に有利である。 Furthermore, according to the configuration of the present invention, in a layout in which a crossing path exists in the middle of an assembly work line for moving the object support tool at a low level close to the floor surface, In a place where the vehicle passes over the road, the transport support is rapidly raised to the level over the crossing by the upper level switching device, and the transported material support is passed over the crossing in this state. Because the lower level switching device can quickly lower the object support to the original work level (low level) and move the object support again at the original work level (low level). The supported object is supported by an inclined cam rail that is inclined at an angle that allows the cam driven roller (operating lever) to be smoothly pushed up and down smoothly and smoothly along with the running of the carrying body. As compared with the case to perform the level conversion of the ingredients, it is possible to reduce the degree of effective path length is shortened work line by a transverse passage overcame passage section. Further, the traveling resistance of the transport traveling body is not significantly increased by switching the level of the transported object support, which is advantageous for the configuration of the travel drive means of the transport traveling body.

尚、請求項2に記載の構成によれば、搬送用走行体の走行経路に要する空間の巾が狭くなるので、当該搬送用走行体のガイドレールやカムレールを支持する架台の横巾を狭くして占有床面積を抑えることができる。そして、被搬送物支持具が下降限レベルにあるときの搬送経路を、当該被搬送物支持具が支持する被搬送物に対して作業を行う作業ラインとして本発明装置を利用する場合に、当該作業ラインの片側に前記架台が存在するだけの、良好な作業環境を確保することができる。 In addition, according to the structure of Claim 2 , since the width | variety of the space required for the driving | running route of a conveyance traveling body becomes narrow, the horizontal width of the mount frame which supports the guide rail and cam rail of the said conveyance traveling body is made narrow. The floor space occupied can be reduced. And when using this invention apparatus as a work line which works with respect to the to-be-conveyed object which the said to-be-conveyed object support tool supports when a to-be-conveyed object support tool exists in a descent | fall limit level, It is possible to ensure a favorable work environment in which the above-mentioned pedestal is only present on one side of the work line.

更に、請求項3に記載の構成によれば、被搬送物支持具を搬送用走行体に対して垂直に昇降移動させることができるものでありながら、被搬送物支持具の昇降経路の全長域にわたって固定的に存在する昇降用ガイドレールなどの案内手段が存在しないので、被搬送物支持具そのものを横断路乗り越えレベルまで上昇させることができるように構成するだけで、所期の横断路乗り越え通過を実現させることができる。特にこの場合に請求項4に記載の構成によれば、搬送用走行体の走行抵抗を減らして円滑に走行させることができる。 Furthermore, according to the structure of Claim 3 , although the to-be-conveyed object support tool can be moved up and down perpendicularly with respect to the traveling body for conveyance, the full length area of the raising / lowering path | route of a to-be-conveyed object support tool Since there is no guide means such as an elevating guide rail that is fixed over the entire area, it is possible to pass over the intended crossing only by constructing it so that the object support itself can be raised to the crossing level. Can be realized. Particularly in this case, according to the configuration of the fourth aspect , the traveling resistance of the transport traveling body can be reduced and the traveling can be smoothly performed.

以下に本発明の具体的実施例を添付図に基づいて説明すると、図1〜図4において、1は自立可能な門形の支持用架台であって、直線状の通路2を跨ぐように床面3上に設置され、通路2の左右両側に立設された支柱4、これら支柱4によって支持された中間床部5、この中間床部5の巾の中央上部に保守作業用通路6を確保するように当該中間床部5の上に左右2列に立設された上部支柱7、及びこれら上部支柱7によって支持された、中間床部5と同一巾の天井部8から構成されている。尚、中間床部5は、その全域に床材(鋼製ネットやパンチングメタルプレートを含む)が張設されたものであっても良いし、少なくとも保守作業用通路6の床面となる領域にのみ前記床材が張設されたものであっても良い。又、天井部8は、水平の枠組み構造体から構成できるが、必要に応じてその全域又は一部分に天井材を張設したものであっても良い。   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 4, reference numeral 1 denotes a self-supporting gate-shaped support pedestal, and a floor so as to straddle a straight passage 2. A support column 4 installed on the surface 3 and standing upright on both the left and right sides of the passage 2, an intermediate floor portion 5 supported by the support columns 4, and a maintenance work passage 6 in the center upper portion of the width of the intermediate floor portion 5 are secured. As shown, the upper support column 7 is erected in two right and left rows on the intermediate floor portion 5, and the ceiling portion 8 is supported by the upper support column 7 and has the same width as the intermediate floor portion 5. The intermediate floor portion 5 may be a floor material (including a steel net or a punching metal plate) stretched over the entire area, or at least in a region that becomes the floor surface of the maintenance work passage 6. Only the flooring may be stretched. Moreover, although the ceiling part 8 can be comprised from a horizontal framework structure, the ceiling material may be stretched in the whole area or a part as needed.

9は吊下げ搬送設備であって、支持用架台1の下側の直線状の通路2を挟むように並列する往行搬送経路部10aと復行搬送経路部10bとを有する無端循環搬送経路に沿って摩擦駆動により走行する多数台の搬送用走行体11と、各搬送用走行体11の外側に昇降支持手段12を介して片持ち状に支持されたワーク支持用ハンガー13とから構成されている。   Reference numeral 9 denotes a suspended conveyance facility, which is an endless circulation conveyance path having an outward conveyance path section 10a and a backward conveyance path section 10b arranged in parallel so as to sandwich the linear path 2 on the lower side of the support base 1. A plurality of transporting traveling bodies 11 that travel by friction drive along a workpiece, and a work support hanger 13 that is supported in a cantilever manner on the outer side of each transporting traveling body 11 via lifting support means 12. Yes.

吊下げ搬送設備9の構成を詳述すると、図5〜図8に示すように、各搬送用走行体11は、5本の同一巾のロードバー14a〜14eを垂直支軸15a〜15dにより水平に折れ曲がり可能に連結して成るロードバーユニット16と、このロードバーユニット16の下側で中間前後2本の垂直支軸15b,15cの周りで回転可能に当該ロードバーユニット16に取り付けられた前後一対のロードトロリー17a,17bと、ロードバーユニット16の下側で前後両端の垂直支軸15a,15dの周りで回転可能に当該ロードバーユニット16に取り付けられた前後一対のガイドトロリー18a,18bと、中間前後2本の垂直支軸15b,15cを介してロードバー14cと平行にロードバーユニット16の上側に支持された、側面視が矩形枠状の本体19と、中間前後2本の垂直支軸15b,15cと同心状の前後2本の垂直支軸20a,20bの周りで回転可能に本体19の上側に支持された前後一対の上側ロードトロリー21a,21bとから構成されている。前後一対、上下二組のロードトロリー17a,17b,21a,21bは、それぞれ垂直軸により軸支された同一径の前後一対のガイドローラー22と、これら前後一対のガイドローラー22の中間位置で水平軸により軸支された大径の支持用ローラー23とを備えている。又、前後一対のガイドトロリー18a,18bは、それぞれ垂直軸により軸支された、ロードトロリーのガイドローラー22と同一径の前後一対のガイドローラー24と、これら前後一対のガイドローラー24の中間位置で水平軸により軸支された小径の支持用ローラー25とを備えている。   Referring to FIG. 5 to FIG. 8 in detail, the structure of the suspended transport equipment 9 is such that each transport traveling body 11 is composed of five load bars 14a to 14e having the same width horizontally by vertical support shafts 15a to 15d. A load bar unit 16 that is foldably connected to the front and rear, and a front and rear attached to the load bar unit 16 so as to be rotatable around two vertical support shafts 15b and 15c in the middle of the lower side of the load bar unit 16 A pair of load trolleys 17a and 17b, and a pair of front and rear guide trolleys 18a and 18b attached to the load bar unit 16 so as to be rotatable around the vertical support shafts 15a and 15d at both front and rear ends below the load bar unit 16. , Supported by the upper side of the load bar unit 16 in parallel with the load bar 14c via the two vertical support shafts 15b and 15c in the middle, the side view is rectangular A frame-shaped main body 19 and a pair of front and rear upper sides supported on the upper side of the main body 19 so as to be rotatable around the two front and rear vertical support shafts 20a and 20b concentric with the two front and rear vertical support shafts 15b and 15c. It is composed of road trolleys 21a and 21b. A pair of front and rear and two sets of upper and lower load trolleys 17 a, 17 b, 21 a, and 21 b each have a pair of front and rear guide rollers 22 of the same diameter supported by a vertical shaft, and a horizontal axis at an intermediate position between the pair of front and rear guide rollers 22. And a large-diameter support roller 23 supported by the shaft. The pair of front and rear guide trolleys 18 a and 18 b are respectively supported by a vertical shaft and a pair of front and rear guide rollers 24 having the same diameter as the guide roller 22 of the load trolley, and an intermediate position between the pair of front and rear guide rollers 24. And a small-diameter support roller 25 supported by a horizontal shaft.

尚、ロードバーユニット16の前後両端に位置するロードバー14a,14eは、長さが他のものより短く、前後両端のガイドトロリー18a,18bと常に平行向きになるように、垂直支軸15a,15dを介して当該ガイドトロリー18a,18bに固定されている。   It should be noted that the load bars 14a, 14e located at the front and rear ends of the load bar unit 16 are shorter than the other and are always parallel to the guide trolleys 18a, 18b at the front and rear ends. It is being fixed to the said guide trolleys 18a and 18b via 15d.

上記構成の搬送用走行体11は、支持用架台1の中間床部5と天井部8との間で且つ上部支柱7の外側(保守作業用通路6の外側)の走行空間26内に走行可能に配置されている。即ち、前記走行空間26の床に相当する中間床部5の上側には、ロードバーユニット16の各トロリー17a〜18bにおけるガイドローラー22が転動可能に遊嵌する、中間床部5上に並設した2本の型材で構成された上側開放の下側溝形ガイドレール27が敷設され、この下側溝形ガイドレール27の内側平坦レール面27a(中間床部5の上面)の上をロードバーユニット16の各トロリー17a〜18bにおける支持用ローラー23,25が転動移動するように構成され、更に、前記走行空間26の天井に相当する天井部8の下側には、本体19の上側ロードトロリー21a,21bにおけるガイドローラー22が転動可能に遊嵌する、天井部8の下側に並設した2本の型材で構成された下側開放の上側溝形ガイドレール28が敷設され、この上側溝形ガイドレール28の内側平坦レール面28a(天井部8の下側面)の下を前記上側ロードトロリー21a,21bにおける支持用ローラー23が転動移動するように構成されている。この構成により搬送用走行体11は、前記走行空間26内で垂直姿勢を保って往行搬送経路部10a及び搬送経路部10bと平行に走行することができる。この直線状の往行搬送経路部10a及び搬送経路部10bに沿って搬送用走行体11が走行するとき、ロードバーユニット16は直線状に伸びていて、各ロードバー14a〜14dの左右両側面は、連続した1つの垂直平面を形成している。   The transporting traveling body 11 having the above configuration can travel in the traveling space 26 between the intermediate floor portion 5 and the ceiling portion 8 of the support base 1 and outside the upper support column 7 (outside the maintenance work passage 6). Is arranged. That is, on the upper side of the intermediate floor portion 5 corresponding to the floor of the traveling space 26, the guide rollers 22 in the trolleys 17 a to 18 b of the load bar unit 16 are loosely fitted so as to be able to roll. An upper open lower groove-shaped guide rail 27 composed of two provided mold members is laid, and a load bar unit is placed on the inner flat rail surface 27a (the upper surface of the intermediate floor portion 5) of the lower groove-shaped guide rail 27. The support rollers 23 and 25 in each of the 16 trolleys 17a to 18b are configured to roll. Further, below the ceiling portion 8 corresponding to the ceiling of the traveling space 26, an upper load trolley of the main body 19 is provided. 21a, 21b guide roller 22 is loosely fitted so that it can roll, and a lower open upper grooved guide rail 28 composed of two molds arranged in parallel below the ceiling portion 8 is laid. Is, the upper load trolleys 21a beneath the inner flat rail surface 28a of the upper groove-shaped guide rail 28 (the lower surface of the ceiling portion 8), the support rollers 23 at 21b are configured to roll movement. With this configuration, the transport traveling body 11 can travel in parallel with the forward transport path portion 10 a and the transport path portion 10 b while maintaining a vertical posture in the travel space 26. When the transport traveling body 11 travels along the linear forward transport path portion 10a and the transport path portion 10b, the load bar unit 16 extends linearly, and both left and right side surfaces of the load bars 14a to 14d. Form one continuous vertical plane.

各搬送用走行体11の駆動方式は特に限定されるものではないが、例えば、図6及び図8にそれぞれ仮想線で示すように、往行搬送経路部10a及び搬送経路部10bに沿って搬送用走行体11が走行するときに直線状に伸びるロードバーユニット16の左右両側面を被駆動摩擦面として当該ロードバーユニット16を左右両側から挟む、モーター駆動の摩擦駆動ローラー29とバックアップローラー30との組み合わせから成る摩擦駆動ユニット31を利用することができる。このような摩擦駆動方式は従来周知であるから詳細な説明は省くが、この実施形態では、各搬送用走行体11のロードバーユニット16の前端(前端のロードバー14aの前端)で直前の搬送用走行体11のロードバーユニット16の後端(後端のロードバー14eの後端)を後押しさせる、所謂突き押し方式により、複数台の搬送用走行体11を往行搬送経路部10a及び搬送経路部10b内に設定された組立てライン内で数珠つなぎに定速走行させることができる。   The driving method of each transporting traveling body 11 is not particularly limited. For example, as shown by phantom lines in FIGS. 6 and 8, transporting along the forward transporting path unit 10 a and the transporting path unit 10 b, respectively. A motor-driven friction drive roller 29 and a backup roller 30 sandwiching the load bar unit 16 from both the left and right sides with the left and right side surfaces of the load bar unit 16 extending linearly when the traveling body 11 travels as a driven friction surface; It is possible to use a friction drive unit 31 composed of a combination of the above. Such a friction drive method is well known in the art and will not be described in detail. In this embodiment, the front end of the load bar unit 16 of each transport traveling body 11 (the front end of the load bar 14a at the front end) is transported immediately before. The plurality of transport traveling bodies 11 are transported to the forward transport path section 10a and transported by a so-called thrusting method in which the rear end of the load bar unit 16 of the travel body 11 (the rear end of the load bar 14e at the rear end) is pushed. In the assembly line set in the path portion 10b, it can be driven at a constant speed in a daisy chain.

昇降支持手段12は、図5〜図7に示すように、搬送用走行体11の本体19に、当該本体19の下側水平枠材19a上に敷設された左右一対のガイドレール32を介して、ロードバーユニット16の本体支持ロードバー14cの長さ方向と平行に前後移動自在に支持された可動体33と、この可動体33とワーク支持用ハンガー13とを連結する平行リンク機構34とから構成されている。この平行リンク機構34は、第一揺動リンク35aと第二揺動リンク35bのそれぞれ一端を、第二揺動リンク35bが第一揺動リンク35aに対して搬送用走行体11の走行方向の前方に位置する配置で、可動体33に左右横向きの水平支軸36a,36bにより軸支すると共に、当該各リンク35a,35bの他端を、両リンク35a,35bが互いに平行な状態で左右横向きの水平支軸37a,37bによりワーク支持用ハンガー13のハンガーアーム支持フレーム13aに軸支し、第一揺動リンク35aの中間位置に左右横向きの水平支軸38により一端を軸支した短リンク、即ち、短い第三揺動リンク39の他端を本体19の後端部に左右横向きの水平支軸40により軸支し、可動体33が横動しても常に水平支軸36a,38,40が、水平支軸36a,40間を底辺とする二等辺三角形の各頂点に位置するように構成し、以て、可動体33の横動を伴わせてワーク支持用ハンガー13を垂直に平行昇降移動できるように構成している。このとき、平行リンク機構34の各リンク35a,35b,39の左右横方向の位置を、第三揺動リンク39、第一揺動リンク35a、第二揺動リンク35bの順に本体19(可動体33)から横外側に離して、各リンク35a,35b,39が、本体19に対して図5及び図6に示す下向き姿勢と図9及び図10に示す上向き姿勢との間で互いに干渉することなく上下揺動できるように構成している。   As shown in FIGS. 5 to 7, the lifting support means 12 is provided on the main body 19 of the transport traveling body 11 via a pair of left and right guide rails 32 laid on the lower horizontal frame member 19 a of the main body 19. A movable body 33 supported so as to be movable back and forth in parallel with the length direction of the main body support load bar 14c of the load bar unit 16 and a parallel link mechanism 34 for connecting the movable body 33 and the work support hanger 13 to each other. It is configured. The parallel link mechanism 34 has one end of each of the first swing link 35a and the second swing link 35b, and the second swing link 35b is in the travel direction of the transport traveling body 11 with respect to the first swing link 35a. With the arrangement located in the front, the movable body 33 is pivotally supported by horizontal support shafts 36a and 36b which are laterally oriented horizontally, and the other ends of the links 35a and 35b are laterally oriented with both links 35a and 35b being parallel to each other. Short links that are pivotally supported on the hanger arm support frame 13a of the work support hanger 13 by the horizontal support shafts 37a and 37b, and are supported at one end by the horizontal support shaft 38 that is laterally directed horizontally at the middle position of the first swing link 35a. That is, the other end of the short third oscillating link 39 is pivotally supported on the rear end portion of the main body 19 by the horizontal support shaft 40 that is laterally directed laterally, so that the horizontal support shafts 36a, 38, 0 is positioned at each vertex of an isosceles triangle with the base between the horizontal support shafts 36a and 40, and therefore the work support hanger 13 is vertically parallel with the lateral movement of the movable body 33. It is configured to move up and down. At this time, the positions of the links 35a, 35b, 39 of the parallel link mechanism 34 in the horizontal direction are set to the main body 19 (movable body) in the order of the third swing link 39, the first swing link 35a, and the second swing link 35b. 33) apart from the laterally outer side, the links 35a, 35b, 39 interfere with each other between the downward posture shown in FIGS. 5 and 6 and the upward posture shown in FIGS. It is configured so that it can be swung vertically.

上記構成の昇降支持手段12では、ワーク支持用ハンガー13側に作用する重力により、平行リンク機構34の各リンク35a,35b,39が本体19側から略垂直下方に垂下してワーク支持用ハンガー13が下降限まで下がることになるが、このワーク支持用ハンガー13の床面3からの高さを規制するために、ハンガー高さ規制手段41が設けられている。この実施形態におけるハンガー高さ規制手段41は、図5〜図7に示すように、平行リンク機構34における第三揺動リンク39と水平支軸40を介して連動し且つ水平支軸40に対し正反対方向に延出する操作レバー42と、この操作レバー42の遊端に軸支されたカム従動ローラー43と、このカム従動ローラー43を押し下げる方向に作用するように搬送用走行体11の走行経路に沿って架設されたカムレール44A、及び後述するカムレール44Bから構成されている。尚、操作レバー42は、搬送用走行体11に対し平行リンク機構34のある側(外側)とは反対側(内側)に配置され、カムレール44A,44Bは、支持用架台1の中間床部5と天井部8との間で且つ上部支柱7の外側に架設されている。   In the lifting support means 12 having the above-described configuration, the links 35 a, 35 b, 39 of the parallel link mechanism 34 hang down substantially vertically downward from the main body 19 side due to gravity acting on the work support hanger 13 side. The hanger height regulating means 41 is provided in order to regulate the height of the work support hanger 13 from the floor surface 3. As shown in FIGS. 5 to 7, the hanger height regulating means 41 in this embodiment is interlocked with the third swing link 39 in the parallel link mechanism 34 via the horizontal support shaft 40 and is connected to the horizontal support shaft 40. An operation lever 42 extending in the opposite direction, a cam driven roller 43 pivotally supported on the free end of the operation lever 42, and a travel path of the transport traveling body 11 so as to act in a direction to push down the cam driven roller 43 44A and a cam rail 44B described later. The operation lever 42 is disposed on the opposite side (inside) to the side (outside) where the parallel link mechanism 34 is provided with respect to the transporting traveling body 11, and the cam rails 44 </ b> A and 44 </ b> B are arranged on the intermediate floor 5 of the support base 1. And the ceiling portion 8 and outside the upper support column 7.

而して、図1の往行搬送経路部10a、図5、及び図6に示すようにカムレール44Aが高レベル、即ち、当該カムレール44Aの下側にカム従動ローラー43が接するときの操作レバー42が略上向きとなる高さで水平に配設された区間では、ワーク支持用ハンガー13の移動レベルが床面3に接近した作業レベルに規制される。そして図1の復行搬送経路部10b、図9、及び図10に示すようにカムレール44Bが低レベル、即ち、当該カムレール44Bの下側にカム従動ローラー43が接するときの操作レバー42が略下向きとなる高さで水平に配設された区間では、ワーク支持用ハンガー13の移動レベルが支持用架台1の中間床部5より上方、即ち、通路2より上方の乗り越えレベルに規制することができる。   Thus, as shown in FIG. 1, the transporting path portion 10a, FIG. 5 and FIG. 6, the operation lever 42 when the cam rail 44A is at a high level, that is, when the cam driven roller 43 is in contact with the lower side of the cam rail 44A. In a section where the workpiece support hanger 13 is horizontally disposed at a height that is substantially upward, the movement level of the work support hanger 13 is regulated to a work level approaching the floor 3. Then, as shown in FIG. 1, the reverse conveyance path portion 10b, FIG. 9, and FIG. 10, the cam rail 44B is at a low level, that is, the operation lever 42 is substantially downward when the cam follower roller 43 contacts the lower side of the cam rail 44B. In the section that is horizontally disposed at the height, the movement level of the work support hanger 13 can be restricted to a level above the intermediate floor portion 5 of the support gantry 1, that is, above the passage 2. .

即ち、図4に示すように、吊下げ搬送設備9の往行搬送経路部10aや復行搬送経路部10bを横断して、支持用架台1の下側の通路2につながる横断路45がレイアウトされている場合、ワーク支持用ハンガー13が横断路45を通過するときに当該ワーク支持用ハンガー13の移動レベルを図1の復行搬送経路部10b、図9、及び図10に示す乗り越えレベルに切り換えれば良い。この実施形態では、図2に示すように、横断路45を含む区間の入り口に、当該区間の上手側において高レベルで水平に架設されたカムレール44A(図5及び図6参照)の下側に圧接するカム従動ローラー43を、横断路45を含む区間内に低レベルで水平に架設されたカムレール44B(図9及び図10参照)の下側に移行させるためのレベル切換装置46が併設され、図3に示すように、横断路45を含む区間の出口に、当該区間内に低レベルで水平に架設されたカムレール44Bの下側に圧接するカム従動ローラー43を、当該区間の下手側において高レベルで水平に架設されたカムレール44Aの下側に移行させるためのレベル切換装置47が併設されている。   That is, as shown in FIG. 4, a crossing path 45 is laid out so as to cross the forward conveyance path portion 10 a and the reverse conveyance path portion 10 b of the hanging conveyance facility 9 and connect to the lower path 2 of the support frame 1. When the workpiece support hanger 13 passes through the crossing path 45, the movement level of the workpiece support hanger 13 is set to the return conveyance path portion 10b in FIG. 1, the overriding level shown in FIG. 9, and FIG. Switch. In this embodiment, as shown in FIG. 2, the cam rail 44A (see FIGS. 5 and 6) installed horizontally at a high level on the upper side of the section is located below the entrance of the section including the crossing path 45. A level switching device 46 for moving the cam driven roller 43 in pressure contact to a lower side of a cam rail 44B (see FIGS. 9 and 10) horizontally installed at a low level in a section including the crossing path 45 is provided. As shown in FIG. 3, the cam follower roller 43 that presses the lower side of the cam rail 44B horizontally installed at a low level in the section includes a cam driven roller 43 at the lower side of the section. A level switching device 47 for shifting to the lower side of the cam rail 44A installed horizontally at the level is also provided.

上記レベル切換装置46,47は、ハンガー高さ規制手段41に組み込まれた同一構造のものであって、図11に示すように、高レベルで架設されたカムレール44Aに接続する上昇限位置と、低レベルで架設されたカムレール44Bに接続する下降限位置との間で昇降駆動される昇降カムレール48を備えている。この昇降カムレール48は、ガイドレール48aに昇降自在に支持されたもので、この昇降カムレール48の昇降経路の後側において自転のみ可能に垂直に支承された回転螺軸49に螺嵌する雌ネジ体50が突設され、回転螺軸49がモーター51により正逆回転駆動されることにより、昇降カムレール48が昇降するように構成されたものである。   The level switching devices 46 and 47 have the same structure incorporated in the hanger height restricting means 41, and as shown in FIG. 11, the ascending limit position connected to the cam rail 44A installed at a high level, An elevating cam rail 48 that is driven up and down between the lower limit position connected to the cam rail 44B installed at a low level is provided. The elevating cam rail 48 is supported by the guide rail 48a so as to be movable up and down, and is a female screw body that is screwed into a rotating screw shaft 49 that is vertically supported on the rear side of the elevating path of the elevating cam rail 48 so that it can only rotate. 50 is projected, and the rotary cam shaft 49 is configured to be moved up and down by the motor 51 being driven to rotate forward and backward.

以上のように構成された搬送設備の使用方法と作用について説明すると、吊下げ搬送設備9の搬送経路中に設定されたワーク積込み箇所、例えば図4の往行搬送経路部10aの始端位置にフロアーコンベヤ52で搬入された自動車ボディーなどのワークWを、当該ワーク積込み箇所で停止させた搬送用走行体11のワーク支持用ハンガー13に移載させる。このときのワークWの移載は、図6に仮想線で示すワーク支持用ハンガー13のハンガーアーム13bの開閉運動を利用して行わせることができる。ワークWがワーク支持用ハンガー13に積み込まれた搬送用走行体11は、先に説明したように摩擦駆動ユニット31によって定速走行させ、ワーク支持用ハンガー13がハンガー高さ規制手段41によって床面3に近い作業レベルで移動する間に、ワークWに対する部品の組み付けなど、組立て作業を行うことができる。このとき、平行リンク機構34の第一揺動リンク35aと第二揺動リンク35bは、搬送用走行体11から走行方向に対し斜め後方下向きに延出している。   The use method and operation of the transport equipment configured as described above will be described. The work loading place set in the transport path of the suspended transport equipment 9, for example, the floor at the start position of the forward transport path portion 10a in FIG. The workpiece W such as an automobile body carried in by the conveyor 52 is transferred to the workpiece support hanger 13 of the transport traveling body 11 stopped at the workpiece loading position. The transfer of the workpiece W at this time can be performed by using the opening / closing motion of the hanger arm 13b of the workpiece support hanger 13 shown by a virtual line in FIG. The conveyance traveling body 11 in which the workpiece W is loaded on the workpiece supporting hanger 13 is caused to travel at a constant speed by the friction drive unit 31 as described above, and the workpiece supporting hanger 13 is moved to the floor surface by the hanger height regulating means 41. While moving at a work level close to 3, assembly work such as assembly of parts to the workpiece W can be performed. At this time, the first rocking link 35a and the second rocking link 35b of the parallel link mechanism 34 extend obliquely rearward and downward from the traveling body 11 for conveyance with respect to the traveling direction.

尚、ワークWの作業対象箇所が低いためにワークWを床面3から上げた方が良いときには、当該作業区間におけるハンガー高さ規制手段41のカムレール44Aを高レベルより下げて水平に架設しておけば良い。このようにカムレール44Aの架設レベルが異なる区間が設けられるときは、当該区間とその前後の区間との間ではカムレール44Aを所要角度で傾斜させ、搬送用走行体11の走行に伴ってカム従動ローラー43(操作レバー42)が円滑に上下動するように構成すれば良い。勿論、先に説明したレベル切換装置46,47と同様のレベル切換装置を利用することもできる。   When it is better to raise the workpiece W from the floor 3 because the work target location of the workpiece W is low, the cam rail 44A of the hanger height regulating means 41 in the working section is lowered horizontally and installed horizontally. It ’s fine. When sections with different installation levels of the cam rail 44A are provided in this way, the cam rail 44A is inclined at a required angle between the section and the sections before and after the section, and the cam driven roller is accompanied with the travel of the transport traveling body 11. What is necessary is just to comprise so that 43 (control lever 42) may move up and down smoothly. Of course, a level switching device similar to the level switching devices 46 and 47 described above can be used.

横断路45の上手側に配設されたレベル切換装置46は、図2に示すように昇降カムレール48がその上手側のカムレール44Aに接続する上昇限位置で待機している。この昇降カムレール48内の前端寄り所定位置に搬送用走行体11側のカム従動ローラー43が乗り移ったならば、当該搬送用走行体11を一旦停止させ、昇降カムレール48を下降限位置まで降下させる。この結果、カム従動ローラー43を介して操作レバー42が斜め後方上向き姿勢から斜め後方下向き姿勢まで強制的に揺動せしめられ、この操作レバー42の揺動に伴って平行リンク機構34の第三揺動リンク39が斜め前方下向き姿勢から斜め前方上向き姿勢まで水平支軸40の周りで回動すると共に、平行リンク機構34の第一揺動リンク35a及び第二揺動リンク35bが斜め後方下向き姿勢から斜め後方上向き姿勢まで水平支軸36a,36bの周りで回動する。このときカム従動ローラー43が昇降カムレール48内で前後に往復移動することになるので、昇降カムレール48は、当該カム従動ローラー43の前後往復移動を許すことができるだけの長さを有する。   As shown in FIG. 2, the level switching device 46 disposed on the upper side of the crossing path 45 stands by at the ascending limit position where the elevating cam rail 48 is connected to the upper cam rail 44A. When the cam driven roller 43 on the transport traveling body 11 side moves to a predetermined position near the front end in the lift cam rail 48, the transport traveling body 11 is temporarily stopped and the lift cam rail 48 is lowered to the lower limit position. As a result, the operation lever 42 is forcibly swung from the oblique rear upward posture to the diagonal rear downward posture via the cam driven roller 43, and the third swing of the parallel link mechanism 34 is accompanied by the swing of the operation lever 42. The dynamic link 39 rotates around the horizontal support shaft 40 from the diagonally forward downward posture to the diagonally forward upward posture, and the first rocking link 35a and the second rocking link 35b of the parallel link mechanism 34 from the diagonally backward downward posture. It rotates around the horizontal support shafts 36a and 36b to an obliquely rearward upward posture. At this time, since the cam follower roller 43 reciprocates back and forth within the elevating cam rail 48, the elevating cam rail 48 has a length that allows the cam follower roller 43 to reciprocate back and forth.

上記の平行リンク機構34の第一揺動リンク35a及び第二揺動リンク35bの平行上動運動に伴ってワーク支持用ハンガー13が水平姿勢を保ちながら作業レベルから乗り越えレベルまで上昇するので、係る状態で搬送用走行体11を発進させることにより、カム従動ローラー43を昇降カムレール48内から、横断路45を含む区画に低レベルで架設されたカムレール44Bの下側へ移行させ、乗り越えレベルまで上げられたワーク支持用ハンガー13をして横断路45の上側を通過移動させることができる。横断路45を通過し終わったワーク支持用ハンガー13は、横断路45の下手側のレベル切換装置47の位置で一旦停止せしめられ、当該レベル切換装置47により再び元の作業レベルまで降下させることができる。このときのレベル切換装置47の昇降カムレール48は、下降限位置で待機している状態でカムレール44Bの下側からカム従動ローラー43を受け入れた後、下手側の高レベルで架設されているカムレール44Aに接続する上昇限位置まで上げられる。この結果、ワーク支持用ハンガー13が乗り越えレベルから元の作業レベルまで下ろされるので、この後、搬送用走行体11を発進させ、ワークWに対する組立て作業などを継続させることができる。   As the work support hanger 13 rises from the work level to the ride-over level while maintaining the horizontal posture as the first swing link 35a and the second swing link 35b of the parallel link mechanism 34 move upward in parallel, By starting the transport traveling body 11 in this state, the cam driven roller 43 is shifted from the inside of the elevating cam rail 48 to the lower side of the cam rail 44B installed at a low level in the section including the crossing path 45, and is raised to the overcoming level. The workpiece support hanger 13 can be moved through the upper side of the crossing path 45. The work supporting hanger 13 that has passed the crossing path 45 is temporarily stopped at the position of the level switching device 47 on the lower side of the crossing path 45, and can be lowered again to the original work level by the level switching apparatus 47. it can. At this time, the elevating cam rail 48 of the level switching device 47 receives the cam driven roller 43 from the lower side of the cam rail 44B while waiting at the lower limit position, and then is installed at the lower level on the cam rail 44A. Is raised to the ascending limit position connected to As a result, the work support hanger 13 is lowered from the level of overriding to the original work level, so that the transporting traveling body 11 can be started and assembly work on the work W can be continued.

ワーク支持用ハンガー13で支持されたワークWに対する作業が完了し、吊下げ搬送設備9の搬送経路中に設定されたワーク下ろし箇所、例えば図4の復行搬送経路部10bの終端位置にワーク支持用ハンガー13が到着したならば、搬送用走行体11を当該ワーク下ろし箇所で停止させ、フロアーコンベヤ53上に作業済みワークWを移載して搬出することができる。このときのワークWの移載も、図6に仮想線で示すワーク支持用ハンガー13のハンガーアーム13bの開閉運動を利用して行わせることができる。   Work on the workpiece W supported by the workpiece support hanger 13 is completed, and the workpiece is supported at the workpiece lowering position set in the conveyance path of the hanging conveyance facility 9, for example, at the terminal position of the backward conveyance path portion 10b in FIG. If the work hanger 13 arrives, the transport traveling body 11 can be stopped at the work lowering position, and the work W can be transferred onto the floor conveyor 53 and carried out. The transfer of the workpiece W at this time can also be performed by using the opening / closing motion of the hanger arm 13b of the workpiece support hanger 13 shown by a virtual line in FIG.

尚、実際の搬送用走行体11の走行駆動運転の一例を述べると、組立て作業ラインの始端位置に配設された摩擦駆動ユニット31により数珠つなぎ状態で突き押し駆動されてくる搬送用走行体11の列の先頭の搬送用走行体11を、横断路45の入り口側のレベル切換装置46より一定距離手前で後続の搬送用走行体11から切り離すように、高速駆動用の摩擦駆動ユニット31により高速駆動し、この搬送用走行体11を適当な推進手段でレベル切換装置46の位置まで走行させて停止させ、当該レベル切換装置46によりワーク支持用ハンガー13を乗り越えレベルに切り換える。その後、適当な推進手段でレベル切換装置46から搬送用走行体11を発進させると共に、高速駆動用の摩擦駆動ユニット31により当該搬送用走行体11を高速駆動して横断路45を通過させる。そして横断路45を通過した搬送用走行体11は、適当な推進手段でレベル切換装置47の位置まで走行させて停止させ、当該レベル切換装置47によりワーク支持用ハンガー13を作業レベルに戻し、その後、適当な推進手段でレベル切換装置47から搬送用走行体11を発進させると共に、当該搬送用走行体11を高速駆動用の摩擦駆動ユニット31により高速駆動して下手側の組立て作業ラインに送り込み、当該組立て作業ラインの始端位置に配設された摩擦駆動ユニット31により再び数珠つなぎ状態での突き押し駆動に切り換えることができる。   An example of the travel driving operation of the actual transport traveling body 11 will be described. The transport traveling body 11 is driven and pushed in a daisy chain by a friction drive unit 31 disposed at the start position of the assembly work line. The high-speed driving friction drive unit 31 speeds up the transport traveling body 11 at the beginning of the row of the above-mentioned row so as to be separated from the succeeding transport traveling body 11 a certain distance before the level switching device 46 on the entrance side of the crossing path 45. Driven, the transport traveling body 11 is traveled to the position of the level switching device 46 by appropriate propulsion means and stopped. The level switching device 46 switches over the workpiece support hanger 13 to the level. Thereafter, the transport traveling body 11 is started from the level switching device 46 by appropriate propulsion means, and the transport traveling body 11 is driven at a high speed by the friction drive unit 31 for high-speed driving to pass through the crossing path 45. Then, the transporting traveling body 11 that has passed through the crossing path 45 travels to the position of the level switching device 47 with appropriate propulsion means and stops it. The level switching device 47 returns the work support hanger 13 to the working level, and then The transport traveling body 11 is started from the level switching device 47 by appropriate propulsion means, and the transport traveling body 11 is driven at a high speed by the friction drive unit 31 for high speed driving and sent to the lower assembly line. The friction drive unit 31 disposed at the start position of the assembly work line can be switched again to the pushing drive in the daisy chain state.

尚、本発明装置の利用は、上記実施形態で示した例に限定されない。又、本発明装置を実施するについて、基本的には第二揺動リンク35bは無くとも良い。この場合、第一揺動リンク35aに対して被搬送物支持用ハンガー13が前後に揺動できることになるが、第二揺動リンク35bを利用しないで、例えば特許文献1に記載のような方法で被搬送物支持用ハンガー13の姿勢を規制するようにしても良い。又、カム従動ローラー43は、第一揺動リンク35aと第三揺動リンク39とを軸支する支軸38と同心状か又は、当該支軸38に近い位置で第三揺動リンク39若しくは第一揺動リンク35aに軸支することも可能である。更に、操作レバー42を設ける場合、当該操作レバー42は、支軸40に対して第三揺動レバー39と同一向きに延出させ、操作レバー42と第三揺動レバー39とが同一方向に上下揺動するように構成しても良い。更に、第一揺動リンク35aがハンガー1の走行方向の斜め前方下方に延出する向きにハンガー1を走行させることも可能である。   In addition, utilization of this invention apparatus is not limited to the example shown by the said embodiment. Further, when implementing the device of the present invention, basically, the second swing link 35b may be omitted. In this case, the hanger 13 for supporting the object to be conveyed can swing back and forth with respect to the first swing link 35a, but without using the second swing link 35b, for example, a method as described in Patent Document 1 Thus, the posture of the hanger 13 for supporting the object to be conveyed may be regulated. The cam follower roller 43 is concentric with the support shaft 38 that supports the first swing link 35 a and the third swing link 39 or at a position close to the support shaft 38. It is also possible to pivotally support the first swing link 35a. Further, when the operation lever 42 is provided, the operation lever 42 extends in the same direction as the third swing lever 39 with respect to the support shaft 40, and the operation lever 42 and the third swing lever 39 are in the same direction. You may comprise so that it may rock | fluctuate up and down. Furthermore, the hanger 1 can be caused to travel in a direction in which the first swing link 35 a extends obliquely forward and downward in the traveling direction of the hanger 1.

ワーク支持用ハンガーが作業レベルにある状態(右半分)とワーク支持用ハンガーが乗り越えレベルにある状態(左半分)とを示す縦断正面図である。It is a vertical front view which shows the state (right half) in which the work support hanger is in a work level, and the state (left half) in which the work support hanger is in a climbing level. 横断路とその上手側の搬送経路部とを示す一部切り欠き側面図である。It is a partially notched side view which shows a crossing path and the conveyance path | route part of the upper side. 横断路とその下手側の搬送経路部とを示す一部切り欠き側面図である。It is a partially cutaway side view which shows a crossing path and the conveyance path | route part of the lower side. 設備全体のレイアウトの一例を示す概略平面図である。It is a schematic plan view which shows an example of the layout of the whole installation. ワーク支持用ハンガーが作業レベルにある状態での要部の拡大側面図である。It is an expanded side view of the principal part in the state which has the work support hanger in a work level. 図5の要部の正面図である。It is a front view of the principal part of FIG. 図5の要部の平面図である。It is a top view of the principal part of FIG. 搬送用走行体のロードバーを示す横断平面図である。It is a cross-sectional top view which shows the load bar of the traveling body for conveyance. ワーク支持用ハンガーが乗り越えレベルにある状態での要部の拡大側面図である。It is an enlarged side view of the principal part in the state which has the hanger for workpiece | work support in a climbing level. 図9の要部の正面図である。It is a front view of the principal part of FIG. A図はワーク支持用ハンガーのレベル切換装置を示す縦断正面図、B図は同要部を内側から見た側面図である。Fig. A is a longitudinal front view showing a level switching device for a work support hanger, and Fig. B is a side view of the main part as viewed from the inside.

符号の説明Explanation of symbols

1 支持用架台
2 通路
5 中間床部
6 保守作業用通路
8 天井部
9 吊下げ搬送設備
10a 往行搬送経路部
10b 復行搬送経路部
11 搬送用走行体
12 昇降支持手段
13 ワーク支持用ハンガー
14a〜14e ロードバー
16 ロードバーユニット
17a,17b,21a,21b ロードトロリー
18a,18b ガイドトロリー
19 本体
27 下側溝形ガイドレール
28 上側溝形ガイドレール
29 摩擦駆動ローラー
31 摩擦駆動ユニット
33 可動体
34 平行リンク機構
35a 第一揺動リンク
35b 第二揺動リンク
39 第三揺動リンク
41 ハンガー高さ規制手段
42 操作レバー
43 カム従動ローラー
44A 高レベルのカムレール
44B 低レベルのカムレール
45 横断路
46,47 レベル切換装置
48 昇降カムレール
49 回転螺軸
52,53 フロアーコンベヤ
DESCRIPTION OF SYMBOLS 1 Supporting stand 2 Passage 5 Intermediate floor part 6 Maintenance work path 8 Ceiling part 9 Hanging conveyance equipment 10a Outgoing conveyance path part 10b Reverse conveyance path part 11 Transporting traveling body 12 Lifting support means 13 Work support hanger 14a -14e Load bar 16 Load bar unit 17a, 17b, 21a, 21b Load trolley 18a, 18b Guide trolley 19 Main body 27 Lower groove guide rail 28 Upper groove guide rail 29 Friction drive roller 31 Friction drive unit 33 Movable body 34 Parallel link Mechanism 35a First swing link 35b Second swing link 39 Third swing link 41 Hanger height regulating means 42 Operation lever 43 Cam driven roller 44A High level cam rail 44B Low level cam rail 45 Crossing path 46, 47 Level switching Device 48 Elevating cam rail 49 Rotating screw shaft 52, 53 Floor conveyor

Claims (4)

一定走行経路を走行する搬送用走行体に、被搬送物支持具を昇降自在に支持する昇降支持手段と、上下揺動により前記昇降支持手段を操作して前記被搬送物支持具を昇降させる操作レバーが設けられ、この操作レバーに軸支されたカム従動ローラーに係合して当該操作レバーの姿勢を規制することにより前記昇降支持手段を介して前記被搬送物支持具の高さを規制するカムレールが前記走行経路に沿って設けられた搬送設備であって、前記搬送用走行体の走行経路が、並列する往行搬送経路部と復行搬送経路部とを有する搬送設備において、前記往行搬送経路部と復行搬送経路部は、床面上の直線状通路に沿って当該直線状通路の上側に配置され、前記直線状通路には当該通路を跨ぐように門形の支持用架台が併設され、前記往行搬送経路部と復行搬送経路部を横断して前記直線状通路とつながる横断路が設けられ、前記往行搬送経路部と復行搬送経路部には、被搬送物支持具を前記直線状通路の横側方の低レベルで走行させて当該被搬送物支持具に支持された被搬送物に対する作業ラインを構成する区間と、前記横断路より上方の高レベルで被搬送物支持具を走行させる区間が設けられ、前記支持用架台には、前記搬送用走行体の走行経路を構成するガイドレール、前記カムレール、及び前記両区間の間に位置するレベル切換装置が、前記直線状通路より上側において支持され、前記レベル切換装置は、前記カム従動ローラーが前記搬送用走行体の走行に伴って水平方向に進入退出自在な昇降カムレールと、この昇降カムレールを、前記レベル切換装置に対して上手側に位置する区間の前記カムレールに接続する位置と、前記レベル切換装置に対して下手側に位置する区間の前記カムレールに接続する位置との間で昇降させる昇降駆動手段を備えている、搬送設備。 An elevating support means for supporting the object support to be moved up and down on a conveying traveling body traveling on a fixed travel route, and an operation for moving the object support tool up and down by operating the elevating support means by swinging up and down. A lever is provided , and the height of the transported object support tool is regulated via the elevating support means by engaging a cam driven roller pivotally supported by the operation lever and regulating the attitude of the operation lever. In the transport facility in which a cam rail is provided along the travel route, the travel route of the transport traveling body includes a forward transport route portion and a reverse transport route portion that are arranged in parallel. The conveyance path section and the retrograde conveyance path section are arranged above the linear path along the linear path on the floor surface, and a gate-shaped support base is provided in the linear path so as to straddle the path. The above-mentioned outbound conveyance path section There is provided a crossing path that crosses the return conveyance path section and is connected to the linear path, and the object support tool is disposed on the lateral side of the linear path in the forward conveyance path section and the return conveyance path section. A section for forming a work line for the object to be transported supported by the object support tool and a section for traveling the object support tool at a high level above the crossing path are provided. The support gantry supports a guide rail, a cam rail, and a level switching device positioned between the two sections that constitute a travel path of the transport traveling body above the linear passage, and level switching device, and enters exit freely elevating cam rails in the horizontal direction the cam follower roller with the traveling of the conveying traveling body, the lifting cam rails, positioned on the upstream side with respect to the level switching device A position to be connected to the cam rail between, and a lifting drive means for lifting between a position connecting to the cam rail of the section located on the downstream side with respect to the level switching device, the transport facilities. 前記支持用架台に支持されて搬送用走行体の走行経路を構成するガイドレールは、前記搬送用走行体の上下両側に設けられたトロリーを介して当該搬送用走行体を走行可能に支持する下側ガイドレールと上側ガイドレールとで構成され、前記昇降支持手段は、前記支持用架台の横側方に配置されて前記被搬送物支持具を片持ち状に上下移動自在に支持するように構成された、請求項1に記載の搬送設備。 Guide rails, which are supported by the support base and constitute a travel path of the transport traveling body, support the transport travel body so as to travel through trolleys provided on both upper and lower sides of the transport travel body. It is composed of a side guide rail and an upper guide rail, and the elevating support means is arranged on the lateral side of the support base and is configured to support the transported object support tool in a cantilevered manner so as to be movable up and down. It has been, conveyance equipment according to claim 1. 前記昇降支持手段は、搬送用走行体にその走行方向と平行に前後移動自在な可動体と、この可動体に、当該可動体の移動方向と平行な垂直面に沿って上下方向に揺動自在に軸支され且つ遊端部で前記被搬送物支持具を吊り下げる揺動リンクと、この揺動リンクの中間位置と前記搬送用走行体との間に介装された短リンクとを備え、この短リンクにより、前記被搬送物支持具が、前記揺動リンクの上下方向の揺動と前記可動体の前後移動を伴って垂直に上下移動するように構成され、前記操作レバーは、前記短リンクと連動連結されている、請求項1又は2に記載の搬送設備。 The elevating support means is movable on a transporting traveling body that can move back and forth in parallel with the traveling direction, and can swing on the movable body in a vertical direction along a vertical plane parallel to the moving direction of the movable body. A swing link that is pivotally supported by the suspension and suspends the object support at the free end, and a short link interposed between an intermediate position of the swing link and the transport traveling body, With this short link, the transported object support is configured to move vertically up and down with the vertical swing of the swing link and the back and forth movement of the movable body. The transport facility according to claim 1 or 2, wherein the transport facility is linked to the link . 被搬送物支持具を低レベルで走行させる区間に搬送用走行体があるとき、前記揺動リンクは搬送用走行体の走行方向に対して斜め後方下方に延出すると共に、前記操作レバーは斜め後方上方に延出するように構成され、被搬送物支持具を高レベルで走行させる区間に搬送用走行体があるときは、前記揺動リンクは搬送用走行体の走行方向に対して斜め後方上方に延出すると共に、前記操作レバーは斜め後方下方に延出するように構成されている、請求項3に記載の搬送設備。 When there is a transport traveling body in a section where the object support is traveled at a low level, the swing link extends obliquely backward and downward with respect to the traveling direction of the transport traveling body, and the operation lever is tilted. The swing link is configured to extend rearward and when the transporting object is in a section where the object supporter travels at a high level, the swing link is obliquely rearward with respect to the traveling direction of the transporting object. The transfer equipment according to claim 3, wherein the operation lever extends upward and the operation lever extends obliquely rearward and downward .
JP2007066094A 2007-03-15 2007-03-15 Transport equipment Expired - Fee Related JP4984052B2 (en)

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JP4925615B2 (en) * 2005-06-29 2012-05-09 株式会社大気社 Transport equipment

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Publication number Priority date Publication date Assignee Title
CN105712039A (en) * 2014-12-22 2016-06-29 哈耶工程与发展公司 Pallet Conveyance System And Method

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