JP2015189555A - Conveying device with carriage lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce equipment cost of a conveying device having a carriage lifting device for lifting and transferring a carriage between both upper and lower travel paths.SOLUTION: A lower side travel path 3 is formed continuously to the inside of a carriage lifting device 4. The carriage lifting device 4 comprises a pair of left and right lifting platforms 4a, 4b for separately supporting projection floor parts 31a, 31b projecting to both left and right sides of a carriage body 24 having wheels of a carriage 1. Each lifting platform 4a, 4b is provided with a carriage support part 56 positioned below the projection floor parts 31a, 31b of the carriage 1 which moves between the inside and outside of the carriage lifting device 4 at the height of the lower side travel path 3. When the lifting platforms 4a, 4b are at an elevating limit height, the carriage 1 in which the projection floor parts 31a, 31b are supported by the carriage support parts 56 of each lifting platform is configured to be transferable and movable between an upper side travel path 2.

Description

本発明は、上下高さの異なる走行経路間で搬送台車を乗り移りさせるための搬送台車昇降装置を備えた搬送装置に関するものである。   The present invention relates to a transport device including a transport cart lifting device for transferring a transport cart between travel routes having different vertical heights.

この種の搬送台車昇降装置付き搬送装置は、特許文献１にも示されるように、上下各走行経路には、搬送台車が備える車輪を介して当該搬送台車を走行可能に支持するガイドレールが敷設され、搬送台車昇降装置の昇降台は、走行経路上の前記ガイドレールと接続可能なガイドレールを備えたもので、このガイドレールにより搬送台車側の車輪を介して当該搬送台車を支持する構造となっている。   In this type of transfer device with a transfer carriage lifting device, as shown in Patent Document 1, guide rails that support the transfer carriage so that the transfer carriage can run through the wheels provided in the transfer carriage are laid on the upper and lower travel paths. The lifting platform of the transporting cart lifting device includes a guide rail that can be connected to the guide rail on the travel route, and the guide rail supports the transporting cart via the wheels on the transporting cart side. It has become.

特開平５−１６２８３９号公報Japanese Patent Laid-Open No. 5-162839

上記のような従来の構成では、搬送台車昇降装置における昇降台の下降限高さを、下側走行経路と同一レベルよりも下側に設定しなければならず、下側走行経路が建屋の床面と同一高さに形成される場合は、前記昇降台を下降限高さまで下降させるためのピットを床面に形成する必要があり、このピットを不要にしようとすれば、床面まで下降した昇降台より高いレベルに下側走行経路を形成しなければならない。何れにしても設備コストが高くつく結果になっていた。   In the conventional configuration as described above, the lower limit height of the lifting platform in the transport carriage lifting device must be set lower than the same level as the lower traveling route, and the lower traveling route is the floor of the building. When it is formed to the same height as the surface, it is necessary to form a pit on the floor surface to lower the lifting platform to the lower limit height, and if this pit is made unnecessary, it will descend to the floor surface The lower travel path must be formed at a higher level than the elevator. In any case, the equipment cost was high.

本発明は、上記のような従来の問題点を解消することのできる搬送台車昇降装置を提案するものであって、本発明に係る搬送台車昇降装置は、後述する実施例との関係を理解し易くするために、当該実施例の説明において使用した参照符号を括弧付きで付して示すと、上側走行経路(2)と下側走行経路(3)、これら上下両走行経路(2,3)上を走行可能な搬送台車(1)、及び前記上下両走行経路(2,3)間で搬送台車(1)を乗り移りさせるための搬送台車昇降装置(4/5)を備えた搬送装置において、前記下側走行経路(3)は、搬送台車昇降装置(4/5)の内部まで連続して形成され、前記搬送台車(1)は、車輪(25a,25b)を備えた台車本体(24)から左右両側に張り出す張出し床部(31a,31b)を備え、前記搬送台車昇降装置(4/5)は、搬送台車(1)の前記左右両側張出し床部(31a,31b)を各別に支持する左右一対の昇降台(4a,4b/5a,5b)を有し、この左右一対の昇降台(4a,4b/5a,5b)には、当該昇降台が下降限高さにあるとき、下側走行経路(3)の高さで搬送台車昇降装置(4/5)の内外間で移動する搬送台車(1)の前記左右両側張出し床部(31a,31b)より下側に位置する台車支持部(56)が設けられ、左右一対の昇降台(4a,4b/5a,5b)が上昇限高さにあるとき、各昇降台(4a,4b/5a,5b)の台車支持部(56)によって左右両側張出し床部(31a,31b)が支持された搬送台車(1)が、上側走行経路(2)との間で乗り移り移動可能に構成されている。   The present invention proposes a transport carriage lifting device that can solve the above-mentioned conventional problems, and the transport cart lift apparatus according to the present invention understands the relationship with the embodiments described later. For ease of explanation, the reference numerals used in the description of the embodiment are shown in parentheses, and the upper travel route (2) and the lower travel route (3), both the upper and lower travel routes (2, 3). In a transport device equipped with a transport cart (1) capable of traveling on the top and a transport cart lifting and lowering device (4/5) for transferring the transport cart (1) between the upper and lower travel paths (2, 3), The lower travel path (3) is continuously formed up to the inside of the transfer carriage lifting device (4/5), and the transfer carriage (1) is a carriage main body (24) provided with wheels (25a, 25b). The transfer carriage lifting device (4/5) is provided with the extension floor portions (31a, 31b) protruding from the left and right sides from the left and right extension floor portions (31a, 31b) of the transfer carriage (1). It has a pair of left and right lifting platforms (4a, 4b / 5a, 5b) to hold, when the lifting platform (4a, 4b / 5a, 5b) is at the lower limit height, A carriage located below the left and right extended floors (31a, 31b) of the carriage truck (1) that moves between the inside and outside of the carriage carriage lifting device (4/5) at the height of the lower travel path (3) When the support portion (56) is provided and the pair of left and right lifting platforms (4a, 4b / 5a, 5b) are at the upper limit height, the carriage supporting portions (56 of each lifting platform (4a, 4b / 5a, 5b) ) Is configured to be able to transfer to and move from the upper travel route (2).

上記本発明の構成によれば、搬送台車昇降装置の左右一対の昇降台は、この搬送台車昇降装置内での搬送台車の下側ではなく左右両側に配設することが出来、しかもこれら左右一対の昇降台がそれぞれ備える台車支持部は、下側走行経路の高さで搬送台車昇降装置の内外間で移動する搬送台車の左右両側張出し床部の下側に位置して、当該搬送台車の下側走行経路の高さでの移動を許すものであって、下降限高さからの上昇により初めて搬送台車を支持するものであり、下側走行経路の高さで搬送台車昇降装置の内外間で移動する搬送台車そのものを支持するものではない。従って、下側走行経路の高さで搬送台車昇降装置内に進入した搬送台車の左右両側張出し床部の下側に、この張出し床部の外側に位置する各昇降台の台車支持部のみが入り込める空間がありさえすれば実施出来、従来のように下側走行経路の高さで搬送台車昇降装置内に進入する搬送台車全体を下側から支持出来る状態に昇降台を待機させる必要がないので、搬送台車昇降装置の設置のために下側走行経路の高さを高くしたり、建屋の床面にピットを掘る必要もなくなり、容易且つ安価に実施することが出来る。   According to the configuration of the present invention described above, the pair of left and right lifting platforms of the transport carriage lifting device can be arranged on both the left and right sides of the transport cart lifting device, not on the lower side of the transport carriage. The carriage support provided in each of the lifting platforms is located below the left and right overhanging floor portions of the transportation carriage moving between the inside and outside of the transportation carriage lifting device at the height of the lower travel path, and below the transportation carriage. It is allowed to move at the height of the side travel path, and it supports the transport carriage for the first time by raising from the lower limit height, and between the inside and outside of the transport carriage lifting device at the height of the lower travel path It does not support the moving carriage itself. Therefore, only the cart support part of each lifting platform located outside the overhanging floor part can enter the lower side of the left and right overhanging floor parts of the transportation carriage that has entered the transportation carriage lifting device at the height of the lower traveling path. As long as there is space, it can be carried out, and it is not necessary to wait for the lifting platform to be able to support the entire transportation carriage entering the transportation carriage lifting device at the height of the lower traveling path as in the conventional case. It is not necessary to increase the height of the lower travel path or to dig a pit on the floor of the building for the installation of the transport carriage lifting device, and it can be carried out easily and inexpensively.

上記のような特徴を有する本発明の搬送装置を実施する場合、具体的には、下側走行経路(3)は床面上に形成し、左右一対の昇降台(4a,4b/5a,5b)の台車支持部(56)は、当該昇降台(4a,4b/5a,5b)が下降限高さにあるとき、搬送台車昇降装置(4/5)内の下側走行経路(3)上に位置する搬送台車(1)の左右両側張出し床部(31a,31b)と床面との間に入り込むように、各昇降台(4a,4b/5a,5b)の下端から内側へ片持ち状に連設し、搬送台車(1)の左右両側張出し床部(31a,31b)には、左右一対の昇降台(4a,4b/5a,5b)が下降限高さより上方位置にあるとき、各昇降台(4a,4b/5a,5b)の台車支持部(56)上に支持されて搬送台車乗り移り移動時に転動し得るローラー(26a,26b)を軸支しておくことが出来る。   When carrying out the conveying device of the present invention having the above-described features, specifically, the lower traveling path (3) is formed on the floor surface, and a pair of left and right lifting platforms (4a, 4b / 5a, 5b ) Carriage support (56) is located on the lower travel path (3) in the carriage carriage lifting device (4/5) when the lifting platform (4a, 4b / 5a, 5b) is at the lower limit. Cantilevered from the lower end of each lifting platform (4a, 4b / 5a, 5b) so as to enter between the floors (31a, 31b) and the floor surface of the left and right sides of the transport cart (1) When the pair of left and right lifting platforms (4a, 4b / 5a, 5b) are located above the lower limit height on the left and right extended floors (31a, 31b) of the transport carriage (1), Rollers (26a, 26b), which are supported on the carriage support portion (56) of the lifting platform (4a, 4b / 5a, 5b) and can roll when moving on the carriage, can be pivotally supported.

即ち、搬送台車の左右両側張出し床部と床面との間の狭い空間内に各昇降台の台車支持部を入り込ませるためには、当該台車支持部の厚さを十分に薄くしなければならない。一方、この台車支持部で両側辺が支持された搬送台車を軽く円滑に走行経路との間で乗り移り移動させるためには、前記台車支持部と搬送台車の左右両側張出し床部との内、何れか一方には、搬送台車乗り移り移動時に転動し得るローラーを軸支する必要がある。通常は、搬送台車は１つの搬送装置内に多数台が使用されるので、この台数の多い搬送台車側にローラーを軸支するよりも、搬送台車昇降装置の左右一対の昇降台の台車支持部側にローラーを軸支するのが、コスト面では望ましいのであるが、上記のように出来る限り薄く構成しなければならない台車支持部にローラーを軸支するとなると、当該台車支持部にローラーの大部分が嵌まり込む凹部を確保することになり、当該台車支持部の強度が著しく低下することになる。これに対して上記のように構成するときは、全ての搬送台車に前記ローラーを軸支しなければならいデメリットはあるが、前記台車支持部を薄く、しかも必要な強度を持たせて構成することが出来る。   That is, in order to allow the carriage support part of each lifting platform to enter the narrow space between the left and right side protruding floor parts and the floor surface of the transport carriage, the thickness of the carriage support part must be made sufficiently thin. . On the other hand, in order to lightly and smoothly move the carriage supported on both sides by the carriage support portion between the travel routes, either the carriage support portion or the left and right side extended floor portions of the carriage cart may be On the other hand, it is necessary to pivotally support a roller that can roll during transfer movement of the transport carriage. Usually, since a plurality of transport carts are used in one transport device, the cart support portions of the pair of left and right lift platforms of the transport cart lifting device are used rather than supporting the rollers on the transport cart side having a large number of transport carts. Although it is desirable in terms of cost to pivot the roller on the side, if the roller is pivotally supported on the cart support that must be configured as thin as possible, most of the rollers on the cart support Therefore, the recessed portion into which the carriage is fitted is secured, and the strength of the cart support portion is significantly reduced. On the other hand, when configured as described above, there is a demerit that the rollers must be pivotally supported on all transport carts, but the cart support is thin and has the necessary strength. I can do it.

尚、搬送台車の左右両側張出し床部は、元々支持される場合に必要な強度を備えた厚さのフレーム構造となるものであるから、前記ローラーを軸支するとしても、当該ローラーの一部が張出し床部に下側に突出するように軸支することは容易であり、搬送台車全体の高さを高くすることなく、所期の目的を達成出来る。勿論、搬送台車(1)の左右両側張出し床部(31a,31b)は、前記台車本体(24)の上面と面一の上面を有するが、厚さは、前記台車本体(24)よりも薄く構成しておくのが、所期の目的に照らして望ましい。   In addition, since the right and left side extended floor portions of the transport carriage have a frame structure having a thickness necessary for being originally supported, even if the roller is pivotally supported, a part of the roller is supported. It is easy to pivotally support the projecting floor so as to protrude downward, and the intended purpose can be achieved without increasing the overall height of the transport carriage. Of course, the left and right extended floors (31a, 31b) of the transport carriage (1) have the upper surface flush with the upper surface of the cart body (24), but the thickness is thinner than the cart body (24). It is desirable to configure it for the intended purpose.

図１は、台車上下循環型搬送設備における走行経路の中間を省略した概略側面図である。FIG. 1 is a schematic side view in which the middle of a travel route in a cart vertical circulation type transport facility is omitted. 図２は、上側搬送用走行経路を説明する概略平面図である。FIG. 2 is a schematic plan view for explaining the upper conveyance travel route. 図３は、下側戻し用走行経路を説明する概略平面図である。FIG. 3 is a schematic plan view for explaining the lower return travel route. 図４は、上下両走行経路の入口部に配設される摩擦駆動手段と搬送台車を示す平面図であって、搬送台車の左右半分の床材を省いた図である。FIG. 4 is a plan view showing the friction drive means and the transport carriage disposed at the entrances of both the upper and lower travel paths, and omits the left and right half floor materials of the transport carriage. 図５Ａは、搬送台車の側面図、図５Ｂは、組み立て完成前の搬送台車を示す縦断正面図、図５Ｃは、組み立て完成後の搬送台車を示す縦断正面図である。FIG. 5A is a side view of the conveyance carriage, FIG. 5B is a longitudinal front view showing the conveyance carriage before assembly completion, and FIG. 5C is a longitudinal front view showing the conveyance carriage after completion of assembly. 図６Ａは、上側搬送用走行経路の入口部での横断立面図であり、図６Ｂは、上下両走行経路の中間位置での横断立面図である。6A is a transverse elevation view at the entrance of the upper conveyance travel route, and FIG. 6B is a transverse elevation view at an intermediate position between the upper and lower travel routes. 図７Ａは、下側戻し用走行経路の入口部での横断立面図であり、図７Ｂは、上下両走行経路の両端部に配設される搬送台車昇降装置を示す横断立面図である。FIG. 7A is a cross-sectional elevation view at the entrance of the lower return travel route, and FIG. 7B is a cross-sectional elevation view showing a transport carriage lifting device disposed at both ends of the upper and lower travel routes. . 図８は、搬送台車昇降装置の昇降駆動手段の具体構造の一例を示すもので、図８Ａは、昇降台が上昇限高さにある状態を示す側面図、図８Ｂは、昇降台が下降限高さにある状態を示す側面図、図８Ｃは、その要部の正面図である。FIG. 8 shows an example of a specific structure of the raising / lowering drive means of the transport carriage lifting device. FIG. 8A is a side view showing a state where the lifting platform is at the upper limit height, and FIG. 8B is a lower limit of the lifting platform. FIG. 8C is a side view showing a state at a height, and FIG.

図１に示す台車上下循環型の搬送装置は、搬送台車１の走行経路として、上側搬送用走行経路２と下側戻し用走行経路３とを備え、上下両走行経路２，３の両端には、上下両走行経路２，３間で搬送台車１を乗り移りさせるための搬送台車昇降装置４，５が配設されている。又、上側搬送用走行経路２の入り口側には、搬送台車昇降装置４の上側をカバーする水平路面部６と、この水平路面部６の始端部に接続された昇り傾斜路面部７とから成る車両進入路形成床材８が架設され、上側搬送用走行経路２の出口側には、搬送台車昇降装置５の上側をカバーする水平路面部９と、この水平路面部９の終端部に接続された下り傾斜路面部１０とから成る車両退出路形成床材１１が架設されている。   The carriage vertical circulation type conveying device shown in FIG. 1 includes an upper conveyance traveling path 2 and a lower return traveling path 3 as traveling paths of the conveying carriage 1. The transport carriage lifting devices 4 and 5 for transferring the transport carriage 1 between the upper and lower travel paths 2 and 3 are disposed. Further, on the entrance side of the upper transport travel path 2, a horizontal road surface portion 6 covering the upper side of the transport carriage lifting device 4 and an ascending slope road surface portion 7 connected to the starting end portion of the horizontal road surface portion 6 are formed. A vehicle entry path forming floor material 8 is erected, and is connected to the exit side of the upper conveyance travel path 2 to a horizontal road surface portion 9 that covers the upper side of the conveyance carriage lifting device 5 and a terminal portion of the horizontal road surface portion 9. Further, a vehicle exit path forming floor material 11 composed of a downwardly inclined road surface portion 10 is constructed.

図２に示すように、上側搬送用走行経路２の入り口には、搬送台車昇降装置４から送り出された搬送台車１を引き継いで搬送用走行経路２内へ定速(一定低速、以下同じ)で送り込む摩擦駆動定速送込み手段１２が併設され、当該搬送用走行経路２の出口には、搬送台車１を定速で搬送台車昇降装置５へ送り出す摩擦駆動定速送出し手段１３が併設されている。又、図３に示すように、下側戻し用走行経路３の入り口には、搬送台車昇降装置５から送り出された搬送台車１を引き継いで戻し用走行経路３内へ定速で送り込む摩擦駆動定速送込み手段１４が併設され、当該戻し用走行経路３の出口には、搬送台車１を定速で搬送台車昇降装置４へ送り出す摩擦駆動定速送出し手段１５が併設されている。   As shown in FIG. 2, at the entrance of the upper transport travel route 2, the transport cart 1 sent out from the transport cart lifting device 4 is taken over into the transport travel route 2 at a constant speed (a constant low speed, hereinafter the same). A friction drive constant speed feeding means 12 for feeding is provided, and a friction drive constant speed sending means 13 for feeding the transport cart 1 to the transport cart lifting device 5 at a constant speed is also provided at the exit of the transport travel path 2. Yes. Further, as shown in FIG. 3, at the entrance of the lower return travel path 3, the friction drive constant that takes over the transport carriage 1 delivered from the transport carriage lifting device 5 and feeds it into the return travel path 3 at a constant speed. A speed feeding means 14 is provided, and a friction drive constant speed sending means 15 is provided at the exit of the return travel path 3 to send the transport carriage 1 to the transport carriage lifting device 4 at a constant speed.

図２及び図３に示すように、上側搬送用走行経路２の入り口側の搬送台車昇降装置４には、下側戻し用走行経路３の出口の摩擦駆動定速送出し手段１５によって送り出される搬送台車１を高速（前記定速よりも一定高速、以下同じ）で当該搬送台車昇降装置４内に引き込む作用と、この搬送台車昇降装置４内の搬送台車１を上側搬送用走行経路２の入り口に高速で送り込む作用とを選択的に行える摩擦駆動高速引込み送出し手段１６が併設され、上側搬送用走行経路２の出口側の搬送台車昇降装置５には、上側搬送用走行経路２の出口の摩擦駆動定速送出し手段１３によって送り出される搬送台車１を高速で当該搬送台車昇降装置５内に引き込む作用と、この搬送台車昇降装置５内の搬送台車１を下側戻し用走行経路３の入り口に高速で送り込む作用とを選択的に行える摩擦駆動高速引込み送出し手段１７が併設されている。   As shown in FIGS. 2 and 3, the transport carriage lifting device 4 on the entrance side of the upper transport travel path 2 is transported by the friction drive constant speed delivery means 15 at the exit of the lower return travel path 3. The operation of pulling the carriage 1 into the transfer carriage lifting / lowering device 4 at a high speed (a constant speed higher than the constant speed, hereinafter the same), and the transfer carriage 1 in the transfer carriage lifting / lowering apparatus 4 at the entrance of the upper transfer travel path 2 Friction drive high-speed retraction / feeding means 16 that can selectively perform the action of feeding at high speed is provided, and the transport carriage lifting device 5 on the exit side of the upper transport travel path 2 has a friction at the exit of the upper transport travel path 2. The operation of pulling the transport carriage 1 delivered by the driving constant speed delivery means 13 into the transport carriage lifting / lowering device 5 at a high speed, and the transport carriage 1 in the transport carriage lifting / lowering device 5 to the entrance of the lower return traveling path 3 Fast feed Friction drive fast tuning delivery means 17 can perform a no-effect selectively are juxtaposed.

更に、上側搬送用走行経路２の摩擦駆動定速送込み手段１２と摩擦駆動定速送出し手段１３との間及び、下側戻し用走行経路３の摩擦駆動定速送込み手段１４と摩擦駆動定速送出し手段１５との間には、搬送台車１の走行経路を規制するガイド手段１８，１９が併設されている。このガイド手段１８，１９は、図６Ｂにも示すように、搬送台車１を左右両側から挟むようにそれぞれ垂直支軸により軸支されたガイドローラー１８ａ，１９ａから構成されたもので、当該ガイドローラー１８ａ，１９ａは、１台の搬送台車１の全長よりも十分短い間隔で走行経路に沿って等間隔おきに配列されている。   Further, between the friction drive constant speed feeding means 12 and the friction drive constant speed sending means 13 in the upper conveyance travel path 2 and between the friction drive constant speed feeding means 14 in the lower return travel path 3 and the friction drive. Between the constant speed delivery means 15, guide means 18 and 19 for restricting the travel route of the transport carriage 1 are provided. As shown in FIG. 6B, the guide means 18 and 19 are constituted by guide rollers 18a and 19a each supported by a vertical support shaft so as to sandwich the transport carriage 1 from both the left and right sides. 18a and 19a are arranged at equal intervals along the travel route at intervals sufficiently shorter than the entire length of one transport carriage 1.

上記摩擦駆動定速送込み手段１２，１４及び摩擦駆動定速送出し手段１３，１５には、図６Ａ及び図７Ａに示すように、搬送台車１を左右両側から挟む左右一対のローラー２０と、この左右一対のローラー２０の少なくとも一方を駆動するモーター２１とから成る摩擦駆動手段２２が利用されるが、図示の実施例では、搬送台車１の側面にスプリング力で圧接するローラー２０と当該ローラー２０を回転駆動するモーター２１とから成る同一構造の左右一対の摩擦駆動ユニット２２ａ，２２ｂによって前記摩擦駆動手段２２が構成されている。この構成では、左右一対のモーター駆動のローラー２０が何れもスプリング力で搬送台車１の側面に圧接する。   As shown in FIGS. 6A and 7A, the friction drive constant speed feeding means 12 and 14 and the friction drive constant speed delivery means 13 and 15 include a pair of left and right rollers 20 that sandwich the transport carriage 1 from both the left and right sides, respectively. Friction driving means 22 including a motor 21 that drives at least one of the pair of left and right rollers 20 is used. In the illustrated embodiment, the roller 20 that presses against the side surface of the transport carriage 1 with a spring force and the roller 20. The friction drive means 22 is composed of a pair of left and right friction drive units 22a, 22b having the same structure and a motor 21 for rotating the motor. In this configuration, the pair of left and right motor-driven rollers 20 are pressed against the side surface of the transport carriage 1 with a spring force.

摩擦駆動定速送出し手段１３，１５は、上下各走行経路２，３の終端において１台の搬送台車１を搬送台車昇降装置４，５に向かって定速で送り出すものであるから、１つの摩擦駆動手段２２（左右一対の摩擦駆動ユニット２２ａ，２２ｂ）によって構成されているが、摩擦駆動定速送込み手段１２，１４は、上下各走行経路２，３内の多数台の搬送台車１の全体を推進させなければならず、その負荷は非常に大きい。従って、これら摩擦駆動定速送込み手段１２，１４は、図２〜図４に示すように、複数の摩擦駆動手段２２を搬送台車１の全長より十分に短い間隔で走行経路方向に並設し、駆動対象の搬送台車２を複数の摩擦駆動手段２２によって推進させることが出来るようにしている。この場合の摩擦駆動手段２２の走行経路方向の具体的な間隔については、後述する。又、実施例の構成では、搬送台車１を左右両側から挟む摩擦駆動ローラー２０がスプリング力で搬送台車１の左右両側面に圧接されるものであるから、これら摩擦駆動ユニット２２ａ，２２ｂだけでは搬送台車１の走行経路を正確に規制することが出来ない。従って、図４にも示すように、摩擦駆動定速送込み手段１２，１４には、前記ガイド手段１８，１９と同様に、１台の搬送台車１をその走行方向の複数個所において左右両側から挟む複数組のガイドローラー２３ａから成るガイド手段２３を組み合わせている。   The friction drive constant speed delivery means 13, 15 are for delivering one transport carriage 1 at a constant speed toward the transport carriage lifting devices 4, 5 at the end of each of the upper and lower travel paths 2, 3. The friction drive means 22 (a pair of left and right friction drive units 22a and 22b) is configured. The friction drive constant speed feeding means 12 and 14 are provided for a plurality of transport carts 1 in the upper and lower travel paths 2 and 3, respectively. The whole thing must be promoted, and the load is very large. Therefore, as shown in FIGS. 2 to 4, these friction drive constant speed feeding means 12 and 14 have a plurality of friction drive means 22 arranged side by side in the traveling path direction at intervals sufficiently shorter than the entire length of the transport carriage 1. The drive carriage 2 to be driven can be propelled by a plurality of friction drive means 22. A specific interval in the traveling path direction of the friction drive means 22 in this case will be described later. Further, in the configuration of the embodiment, the friction drive roller 20 that sandwiches the conveyance carriage 1 from both the left and right sides is pressed against the left and right side surfaces of the conveyance carriage 1 by the spring force, so that only the friction drive units 22a and 22b carry the conveyance carriage. The travel route of the carriage 1 cannot be regulated accurately. Therefore, as shown in FIG. 4, the friction drive constant speed feeding means 12 and 14 are provided with a single conveying carriage 1 from the left and right sides at a plurality of locations in the traveling direction, similarly to the guide means 18 and 19. A guide means 23 composed of a plurality of sets of guide rollers 23a sandwiched is combined.

摩擦駆動高速引込み送出し手段１６，１７は、図２及び図３に示すように、搬送台車昇降装置４，５の上下両走行経路２，３に隣接する側に配設された一組の摩擦駆動ユニット２２ａ，２２ｂから成る摩擦駆動手段２２によって構成される。具体的には、上下両搬送用走行経路２，３の出口に隣接する高さの引込み専用の摩擦駆動手段２２と、上下両搬送用走行経路２，３の入り口に隣接する高さの送出し専用の摩擦駆動手段２２とによって構成することも可能であるが、この実施例では、図７Ｂに示すように、搬送台車昇降装置４，５が備える、搬送台車１の左右両側辺を支持して昇降する左右一対の昇降台４ａ，４ｂ／５ａ，５ｂに、引込み送出し兼用の１つの摩擦駆動手段２２（左右一対の摩擦駆動ユニット２２ａ，２２ｂ）を取り付けることによって構成している。   As shown in FIGS. 2 and 3, the friction drive high-speed pull-in / feed-out means 16, 17 is a set of friction disposed on the side adjacent to the upper and lower travel paths 2, 3 of the transport carriage lifting devices 4, 5. It is comprised by the friction drive means 22 which consists of drive units 22a and 22b. Specifically, the friction drive means 22 dedicated to pulling in the height adjacent to the exits of both the upper and lower transport travel paths 2 and 3 and the delivery adjacent to the entrance of the travel paths 2 and 3 for both the upper and lower transports. In this embodiment, as shown in FIG. 7B, the left and right sides of the transport carriage 1 provided in the transport carriage lifting and lowering devices 4 and 5 are supported. A pair of left and right lifting platforms 4a, 4b / 5a, and 5b that move up and down are configured by attaching one friction drive means 22 (a pair of left and right friction drive units 22a and 22b) that also serves as a pull-in / feed-out.

搬送台車昇降装置４，５の左右一対の昇降台４ａ，４ｂ／５ａ，５ｂの昇降駆動手段は、各種の機構が従来周知であって、特に限定されるものではないが、基本的な構成の一例を図８に基づいて説明すると、図示の昇降駆動手段５０は、左右一対の昇降台４ａ，４ｂ／５ａ，５ｂそれぞれに併設されるものであって、昇降台４ａ，４ｂ／５ａ，５ｂを並行昇降自在に支持するパンタグラフリンク機構５１、このパンタグラフリンク機構５１の中央交差部に軸支されたカム従動ローラー５２、前後方向に往復移動自在に支持されたスライドカム５３、及びこのスライドカム５３を往復移動させる駆動用アクチュエーター（流体圧シリンダー、電動シリンダー、ラックピニオンギヤ、その他）５４から構成されている。   Various mechanisms are conventionally known as the lifting drive means of the pair of left and right lifting platforms 4a, 4b / 5a, 5b of the transporting cart lifting devices 4, 5, but are not particularly limited. An example will be described with reference to FIG. 8. The illustrated lifting drive means 50 is provided in each of the pair of left and right lifting platforms 4a, 4b / 5a, 5b, and includes the lifting platforms 4a, 4b / 5a, 5b. A pantograph link mechanism 51 that is supported so as to be movable up and down in parallel, a cam driven roller 52 that is pivotally supported at a central intersection of the pantograph link mechanism 51, a slide cam 53 that is supported so as to be reciprocally movable in the front-rear direction, and the slide cam 53 The actuator includes a driving actuator (fluid pressure cylinder, electric cylinder, rack and pinion gear, etc.) 54 that reciprocates.

更に詳述すると、左右一対の昇降台４ａ，４ｂ／５ａ，５ｂは、搬送台車１の走行経路の左右両側に位置する昇降台本体５５の下側辺から内側へ連設されて、搬送台車１の左右両側辺の被支持用ローラー２６ａ，２６ｂを移動自在に支持する、前後方向に長い水平帯状板から成る台車支持部５６と、昇降台本体５５の上側辺から連設されて外側へ水平に張り出す被支持部５７とから構成されている。パンタグラフリンク機構５１は、２本のリンク５８ａ，５８ｂの中央交差部が支軸５８ｃで軸支され、両リンク５８ａ，５８ｂの一端部がそれぞれ支軸５８ｄ，５８ｅによって被支持部５７と床側の基板５９のそれぞれ定位置に軸支され、２本のリンク５８ａ，５８ｂの他端部に軸支されたローラー５８ｆ，５８ｇが、被支持部５７と床側の基板５９のそれぞれに付設された水平前後方向のガイドレール５８ｈ，５８ｉに前後方向水平移動自在に嵌合することによって構成されている。前記カム従動ローラー５２は、両リンク５８ａ，５８ｂの中央交差部の支軸５８ｃによって、このパンタグラフリンク機構５１に軸支され、このカム従動ローラー５２を受けるスライドカム５３は、基板５９上に前後方向に沿って敷設されたスライドレール６０に前後移動自在に支持されている。   More specifically, the pair of left and right lifting platforms 4a, 4b / 5a, 5b are connected inward from the lower side of the lifting platform main body 55 located on the left and right sides of the travel path of the transport cart 1 to the transport cart 1. A carriage support portion 56 made of a horizontal strip plate that is long in the front-rear direction and supports the supported rollers 26a and 26b on both the left and right sides of the elevator, and the upper side of the lifting / lowering base body 55 is connected to the outside horizontally. And a supported portion 57 that projects. In the pantograph link mechanism 51, the central intersection of the two links 58a and 58b is pivotally supported by a support shaft 58c, and one end of each of the links 58a and 58b is supported by the support portion 57 and the floor side by the support shafts 58d and 58e, respectively. Rollers 58f and 58g that are pivotally supported at fixed positions on the substrate 59 and are pivotally supported on the other ends of the two links 58a and 58b are respectively attached to the supported portion 57 and the substrate 59 on the floor side. The guide rails 58h and 58i in the front-rear direction are configured to be fitted so as to be horizontally movable in the front-rear direction. The cam follower roller 52 is pivotally supported on the pantograph link mechanism 51 by a support shaft 58c at the center intersection of both links 58a, 58b, and a slide cam 53 that receives the cam follower roller 52 is disposed on the substrate 59 in the front-rear direction. Is supported by a slide rail 60 laid along the front and rear sides so as to be movable back and forth.

尚、図示の構造では、１つのパンタグラフリンク機構５１の２本のリンク５８ａ，５８ｂを左右横方向に間隔を広げて配置して、必要な支持強度を得るようにしているが、実際にパンタグラフリンク機構を利用して各昇降台４ａ，４ｂ／５ａ，５ｂを片持ち状に支持する場合には、必要な支持強度を確保するために、二組のパンタグラフリンク機構を左右横方向に適当間隔隔てて並設するのが望ましい。又、図８は、昇降駆動手段５０の原理構成を説明するためのものであって、搬送台車走行方向の長さが非常に短く示されている。実際には、搬送台車走行方向の長さが図示の長さの数倍にも及ぶので、実際には、図示の昇降駆動手段５０を搬送台車走行方向に複数配設することになる。この場合、左右の同一側にある複数の昇降駆動手段５０の各スライドカム５３を互いに連動連結し、この連動連結された複数のスライドカム５３を１つの駆動用アクチュエーター５４によって駆動するように構成することが出来る。   In the structure shown in the figure, the two links 58a and 58b of one pantograph link mechanism 51 are arranged with a wide interval in the horizontal direction to obtain a necessary support strength. When using a mechanism to support each lifting platform 4a, 4b / 5a, 5b in a cantilevered manner, the two sets of pantograph link mechanisms are spaced apart from each other in the lateral direction in order to ensure the necessary support strength. It is desirable to install them side by side. Further, FIG. 8 is for explaining the principle configuration of the lifting drive means 50, and the length in the traveling direction of the transport carriage is shown very short. Actually, the length in the transporting cart traveling direction is several times as long as the illustrated length, and therefore, actually, a plurality of the lifting drive means 50 illustrated in the figure are arranged in the transporting cart traveling direction. In this case, the slide cams 53 of the plurality of lifting drive means 50 on the same left and right sides are connected to each other, and the plurality of slide cams 53 connected to each other are driven by one drive actuator 54. I can do it.

上記構成のパンタグラフリンク機構５１により、各昇降台４ａ，４ｂ／５ａ，５ｂは、それぞれ水平姿勢を保って垂直に昇降可能に支持されているので、図８Ａに示すように、スライドカム５３が後退限にあって、その上段支持部がパンタグラフリンク機構５１のカム従動ローラー５２を支持しているときは、パンタグラフリンク機構５１が起立姿勢にあって、昇降台４ａ，４ｂ／５ａ，５ｂが上昇限高さにあり、その台車支持部５６が被支持用ローラー２６ａ，２６ｂを介して支持する搬送台車１は、上側搬送用走行経路２に対して乗り移り可能な高さに位置する。そして、図８Ｂに示すように、スライドカム５３が前進限にあって、その下段支持部がパンタグラフリンク機構５１のカム従動ローラー５２を支持しているときは、パンタグラフリンク機構５１が倒伏姿勢にあって、昇降台４ａ，４ｂ／５ａ，５ｂが下降限高さにあり、その台車支持部５６は、図８Ｃに仮想線で示すように、下側の搬送用走行経路３上でこの搬送台車昇降装置４，５に対して出入り移動する搬送台車１の被支持用ローラー２６ａ，２６ｂと床面との間に位置して、当該搬送台車１に対して干渉しない状態にある。駆動用アクチュエーター５４は、スライドカム５３を前記後退限と前進限との間で押し引き駆動して、パンタグラフリンク機構５１を起伏動作させるものである。   By the pantograph link mechanism 51 having the above-described configuration, each of the lifting platforms 4a, 4b / 5a, 5b is supported so as to be vertically movable while maintaining a horizontal posture, so that the slide cam 53 moves backward as shown in FIG. 8A. When the upper support portion supports the cam follower roller 52 of the pantograph link mechanism 51, the pantograph link mechanism 51 is in a standing posture, and the lifting platforms 4a, 4b / 5a, 5b are in the ascending limit. The conveyance carriage 1 which is at a height and is supported by the carriage support portion 56 via the supported rollers 26 a and 26 b is positioned at a height at which the carriage 1 can be transferred to the upper conveyance travel path 2. As shown in FIG. 8B, when the slide cam 53 is in the forward limit and its lower support portion supports the cam follower roller 52 of the pantograph link mechanism 51, the pantograph link mechanism 51 is in the lying posture. Thus, the lifting platforms 4a, 4b / 5a, 5b are at the lower limit height, and the cart support 56 is moved up and down on the lower transport travel path 3 as shown by phantom lines in FIG. 8C. It is located between the supported rollers 26 a and 26 b of the transport carriage 1 that moves in and out of the devices 4 and 5 and the floor surface, and does not interfere with the transport carriage 1. The driving actuator 54 pushes and pulls the slide cam 53 between the backward limit and the forward limit to cause the pantograph link mechanism 51 to move up and down.

搬送台車１は、図４及び図５に示すように、平面視が走行方向に長い長方形の台車本体２４、左右二列の車輪２５ａ，２５ｂ、左右両側の張出し床部３１ａ，３１ｂ、及び左右両側辺の被支持用ローラー２６ａ，２６ｂから構成されている。台車本体２４は、その長さ方向（走行方向）の全長に及ぶ長尺の２本の主縦材２９ａ，２９ｂと、これら両主縦材２９ａ，２９ｂどうしを連結一体化する連結フレーム３０から構成され、各主縦材２９ａ，２９ｂの外側に張出し床部３１ａ，３１ｂが着脱自在に取り付けられて左右両側に張り出している。尚、連結フレーム３０も主縦材２９ａ，２９ｂに対して着脱自在に構成することも可能である。   As shown in FIGS. 4 and 5, the transport carriage 1 includes a rectangular carriage main body 24 having a long plan view in the traveling direction, left and right rows of wheels 25 a and 25 b, left and right extended floors 31 a and 31 b, and left and right sides It is composed of side supported rollers 26a and 26b. The cart body 24 is composed of two long main vertical members 29a and 29b extending over the entire length in the length direction (traveling direction), and a connecting frame 30 that connects and integrates the two main vertical members 29a and 29b. In addition, projecting floor portions 31a and 31b are detachably attached to the outer sides of the main longitudinal members 29a and 29b and project to the left and right sides. The connection frame 30 can also be configured to be detachable from the main longitudinal members 29a and 29b.

台車本体２４の主縦材２９ａ，２９ｂは、左右一対の縦材３２ａ，３２ｂ、これら両縦材３２ａ，３２ｂを長さ方向両端と中間適当間隔おきの位置で互いに連結一体化する連結材３３、及び両縦材３２ａ，３２ｂの左右両側に張り出すように当該両縦材３２ａ，３２ｂの上に敷設された帯状板３４から構成されている。台車本体２４の連結フレーム３０は、主縦材２９ａ，２９ｂの前記連結材３３と同じ位置で当該主縦材２９ａ，２９ｂどうしを互いに連結一体化する複数本の連結材３５と、この連結材３５上に敷設されて、左右一対の主縦材２９ａ，２９ｂ間を塞ぐ台車床材３５ａから構成されている。張出し床部３１ａ，３１ｂは、搬送台車走行方向と平行な搬送台車１の左右両側辺を形成する、前記主縦材２９ａ，２９ｂの厚さより薄くて台車本体２４の全長に及ぶ副縦材３６、主縦材２９ａ，２９ｂの外側に着脱自在に取り付けられる帯状取付け板３７、主縦材２９ａ，２９ｂの前記連結材３３と同じ位置で前記副縦材３６と帯状取付け板３７とを互いに連結一体化する連結材３８、及びこれら副縦材３６と連結材３８の上に敷設されて、左右一対の主縦材２９ａ，２９ｂと副縦材３６との間を塞ぐ台車床材３８ａによって構成されている。前記縦材３２ａ，３２ｂには溝形鋼などの形鋼、連結材３３，３５，３８及び副縦材３６には角鋼管などの形鋼、帯状板３４や帯状取付け板３７には鋼板、そして台車床材３５ａ，３８ａには合板などがそれぞれ利用出来る。即ち、搬送台車１は、積載荷重を受ける強度部材としての左右一対の主縦材２９ａ，２９ｂを備えた台車本体２４と、この台車本体２４よりも厚さが薄くて、作業者の歩行などに耐え得る程度の強度を備えた左右両側の張出し床部３１ａ，３１ｂによって構成されている。   The main vertical members 29a and 29b of the carriage main body 24 are a pair of left and right vertical members 32a and 32b, a connecting member 33 for connecting and integrating these vertical members 32a and 32b to each other at both ends in the length direction and at intermediate intervals. And it is comprised from the strip | belt-shaped board 34 laid on the said both vertical material 32a, 32b so that it may protrude on both the left and right sides of both vertical material 32a, 32b. The connecting frame 30 of the carriage main body 24 includes a plurality of connecting members 35 that connect and integrate the main vertical members 29a and 29b to each other at the same position as the connecting members 33 of the main vertical members 29a and 29b. It is comprised from the trolley | bogie flooring 35a which is laid on top and block | closes between a pair of left and right main vertical members 29a and 29b. The overhanging floor portions 31a and 31b are formed on the left and right sides of the transport carriage 1 parallel to the traveling direction of the transport carriage 1 and are thinner than the main longitudinal members 29a and 29b and extend over the entire length of the carriage main body 24, The sub-vertical member 36 and the belt-like mounting plate 37 are connected and integrated with each other at the same position as the connecting member 33 of the main vertical members 29a and 29b. Connecting material 38, and these sub-vertical members 36 and trolley floor material 38a that are laid on the connecting members 38 and block between the pair of left and right main vertical members 29a, 29b and the sub-vertical members 36. . The vertical members 32a and 32b are shaped steel such as grooved steel, the connecting members 33, 35, and 38 and the auxiliary vertical member 36 are shaped steel such as square steel pipes, the strip-shaped plate 34 and the strip-shaped mounting plate 37 are steel plates, and Plywood or the like can be used for each of the cart floor materials 35a and 38a. In other words, the transport cart 1 has a cart body 24 including a pair of left and right main longitudinal members 29a and 29b as strength members that receive a load, and is thinner than the cart body 24, so that it can be used for workers to walk. It is comprised by the overhang | floating floor parts 31a and 31b of both the right and left provided with the intensity | strength which can be endured.

左右二列の車輪２５ａ，２５ｂは、各主縦材２９ａ，２９ｂにおける左右一対の縦材３２ａ，３２ｂ間で、これら主縦材２９ａ，２９ｂの長さ方向両端と中間適当間隔おきの位置に、主縦材２９ａ，２９ｂの底面から少し下側に突出するように軸支されている。又、左右両側辺の被支持用ローラー２６ａ，２６ｂは、各張出し床部３１ａ，３１ｂにおける副縦材３６と、両端の連結材３８を除く各連結材３８との間の入隅部を利用して、副縦材３６の長さ方向適当間隔おきの位置に、水平左右横向きの支軸を介して、張出し床部３１ａ，３１ｂの底面から少し下側に突出するように軸支されている。   Two rows of left and right wheels 25a, 25b are arranged between the pair of left and right vertical members 32a, 32b in the main vertical members 29a, 29b at positions at intermediate intervals between both ends of the main vertical members 29a, 29b in the length direction. The main longitudinal members 29a and 29b are pivotally supported so as to protrude slightly downward from the bottom surfaces. Further, the supported rollers 26a and 26b on the left and right sides use the corners between the sub-vertical members 36 in the overhanging floor portions 31a and 31b and the connecting members 38 excluding the connecting members 38 at both ends. Thus, the sub-vertical members 36 are pivotally supported at positions at appropriate intervals in the length direction so as to protrude slightly downward from the bottom surfaces of the extended floor portions 31a and 31b via horizontal and horizontal support shafts.

図１〜図３に示す搬送装置は、その上側搬送用走行経路２において、自走可能な被搬送車両Ｗを搬送台車１により搬送するものであるが、この上側搬送用走行経路２と下側戻し用走行経路３では、前後に隣接する搬送台車１どうしが互いに突き合う連続状態に、所要台数の搬送台車１が走行経路全域にわたって配置されている。そして、上側搬送用走行経路２中の各搬送台車１は、図６及び図７に示すように、下側戻し用走行経路３中の各搬送台車１の横巾の中間に位置する左右一対の主縦材２９ａ，２９ｂ（帯状板３４）によって、車輪２５ａ，２５ｂを介して走行可能に支持されており、その積載荷重を含む全重量が、戻し用走行経路３中の各搬送台車１の主縦材２９ａ，２９ｂと当該主縦材２９ａ，２９ｂに軸支されている車輪２５ａ，２５ｂを介して、戻し用走行経路３を形成する床面、実際には床面上に敷設された帯状板から成る扁平レール４５ａ，４５ｂによって受け止められている。尚、この床面（扁平レール４５ａ，４５ｂ）によって形成される下側戻し用走行経路３の入り口と出口は、上側搬送用走行経路２と同様に、搬送台車昇降装置４，５の外側に位置するが、この実施例の搬送台車昇降装置４，５の構成上、下側戻し用走行経路３は、これら搬送台車昇降装置４，５内にまで延長されて、当該搬送台車昇降装置４，５内と下側戻し用走行経路３との間を出入りする搬送台車１の走行路となっている。   The transport apparatus shown in FIGS. 1 to 3 transports a self-propelled transported vehicle W by a transport carriage 1 in the upper transport travel path 2. In the return travel route 3, a required number of transport carts 1 are arranged over the entire travel route in a continuous state where the transport carts 1 adjacent to each other in the front and rear face each other. Then, as shown in FIGS. 6 and 7, each transport carriage 1 in the upper transport travel path 2 is a pair of left and right positioned in the middle of the lateral width of each transport carriage 1 in the lower return travel path 3. The main longitudinal members 29a and 29b (band-like plates 34) are supported so as to be able to travel via the wheels 25a and 25b, and the total weight including the loaded load is the main weight of each transport carriage 1 in the return travel path 3. The floor surface forming the return travel path 3 via the vertical members 29a and 29b and the wheels 25a and 25b pivotally supported by the main vertical members 29a and 29b, actually, a belt-like plate laid on the floor surface Are received by flat rails 45a and 45b. The entrance and exit of the lower return travel path 3 formed by the floor surfaces (flat rails 45a and 45b) are located outside the transport carriage lifting devices 4 and 5 in the same manner as the upper transport travel path 2. However, due to the configuration of the transporting cart lifting devices 4 and 5 of this embodiment, the lower return travel path 3 is extended into the transporting cart lifting devices 4 and 5, and the transporting cart lifting devices 4 and 5. This is a travel path of the transport carriage 1 that enters and exits between the inner return travel path 3 and the lower return travel path 3.

上下両走行経路２，３中の各搬送台車１は、これら走行経路２，３の入り口に配設されている摩擦駆動定速送込み手段１２，１４によって前進方向の推進力を受ける最後尾の搬送台車１によって突き押し駆動され、その反動で各搬送台車１が定速以上の速度で前進走行するのを、上下両走行経路２，３の出口に配設されている摩擦駆動定速送出し手段１３，１５によって阻止されている。従って、上下両走行経路２，３中の各搬送台車１は、前後に隣接する搬送台車１どうしが互いに突き合う連続状態を保って定速で前進走行することになる。このとき各搬送台車１は、図６Ｂにも示すように、走行経路両側のガイド手段１８，１９の各ガイドローラー１８ａ，１９ａによって左右両側から挟まれており、左右横方向の揺れ動きが抑止されている。   Each carriage 1 in both the upper and lower travel paths 2, 3 has a rear end that receives propulsive force in the forward direction by friction drive constant speed feeding means 12, 14 disposed at the entrances of these travel paths 2, 3. Friction drive constant speed sending that is arranged at the exit of both the upper and lower travel paths 2 and 3 is driven to push and drive by the transport carriage 1 and each of the transport carriages 1 moves forward at a speed equal to or higher than a constant speed. Blocked by means 13,15. Accordingly, the transport carts 1 in both the upper and lower travel paths 2 and 3 travel forward at a constant speed while maintaining a continuous state where the transport carts 1 adjacent to each other in the front and rear are in contact with each other. At this time, as shown in FIG. 6B, each transport carriage 1 is sandwiched from the left and right sides by the guide rollers 18a and 19a of the guide means 18 and 19 on both sides of the travel path, and the horizontal and horizontal shaking motion is suppressed. Yes.

既に説明したように、摩擦駆動定速送込み手段１２，１４は、その負荷に見合った大きな推進力を備えたものとするために、摩擦駆動手段２２を走行方向に複数台配設して、全体として必要な推進力が得られるように構成しているが、一方、各搬送台車１は、台車本体２４の左右一対の主縦材２９ａ，２９ｂには強度部材として十分な強度を持たせる一方、それほどの強度を必要としない張出し床部３１ａ，３１ｂは、素材強度を落として軽量化を図ることになる。このような状況下では、多数の摩擦駆動手段２２から受ける左右横方向からの甚大な挟み付け力によって、搬送台車１の左右両側の張出し床部３１ａ，３１ｂに強度面での悪影響が生じることが考えられる。従って、図４に示すように、張出し床部３１ａ，３１ｂにおける連結材３８の最大間隔Ｄ１（図示例は連結フレーム３０における連結材３５の最大間隔と同じ）に対して、摩擦駆動定速送込み手段１２，１４における各摩擦駆動手段２２（摩擦駆動ローラー２０）の走行方向の間隔Ｄ２が等しいか又は大きくなる（但し、連結材３８の最大間隔Ｄ１の２倍以下となる）ように構成し、走行方向に隣り合う連結材３５，３８間に２つの摩擦駆動ローラー２０が位置しないようにしている。   As described above, the friction drive constant speed feeding means 12 and 14 are provided with a large number of friction drive means 22 in the traveling direction in order to have a large propulsive force corresponding to the load, The transport cart 1 is configured so that necessary propulsive force is obtained as a whole. On the other hand, each transport cart 1 has sufficient strength as a strength member for the pair of left and right main longitudinal members 29a and 29b of the cart body 24. The overhanging floor portions 31a and 31b that do not require that much strength reduce the material strength and reduce the weight. Under such circumstances, due to the large clamping force from the left and right lateral directions received from the large number of friction drive means 22, there is a possibility that an adverse effect in terms of strength occurs in the overhanging floor portions 31a and 31b on the left and right sides of the transport carriage 1. Conceivable. Therefore, as shown in FIG. 4, the friction drive constant speed feeding is performed with respect to the maximum distance D1 of the connecting member 38 in the overhanging floor portions 31a and 31b (the illustrated example is the same as the maximum interval of the connecting member 35 in the connecting frame 30). The distance D2 in the running direction of each friction drive means 22 (friction drive roller 20) in the means 12, 14 is equal or larger (however, it is not more than twice the maximum distance D1 of the connecting member 38), The two friction drive rollers 20 are not positioned between the connecting members 35 and 38 adjacent to each other in the traveling direction.

図１に示すように、自走可能な被搬送車両Ｗは、車両進入路形成床材８の水平路面部６上で待機しており、上側搬送用走行経路２の入り口から摩擦駆動定速送込み手段１２によって定速での前進走行を開始した搬送台車１上に、搭乗した運転者の運転による自走により乗り移される。このとき被搬送車両Ｗの左右両側の車輪Ｗａが搬送台車１の左右一対の主縦材２９ａ，２９ｂ上（帯状板３４上）を転動移動出来るように、被搬送車両Ｗの左右両側の車輪Ｗａ間の間隔と搬送台車１側の主縦材２９ａ，２９ｂ間の間隔とを合わせている。而して、上側搬送用走行経路２の入り口で搬送台車１上に乗り移された被搬送車両Ｗは、上側搬送用走行経路２上での当該搬送台車１の定速走行の間に、当該搬送台車１上に乗り込んだ作業者によって、或いは自動装置により所定の作業を受けることになる。作業完了の被搬送車両Ｗは、当該被搬送車両Ｗを積載している搬送台車１が、上側搬送用走行経路２の出口所定位置に達したとき、搭乗した運転者の運転による自走により、搬送台車１上から車両退出路形成床材１１の上を経由してこの搬送装置から退出することになる。尚、図６及び図７Ａに示すように、上側搬送用走行経路２の左右両側には、当該上側搬送用走行経路２を定速走行する各搬送台車１の表面とほぼ同一レベルで作業者歩行用の床材４６を建屋側に架設しておくことが出来る。   As shown in FIG. 1, a self-propelled transported vehicle W stands by on the horizontal road surface portion 6 of the vehicle entrance path forming flooring 8, and friction drive constant speed feeding from the entrance of the upper transport travel path 2. It is transferred by the self-propelled driving of the driver who boarded onto the transport carriage 1 which has started the forward traveling at a constant speed by the inserting means 12. At this time, the left and right wheels of the transported vehicle W are allowed to roll on the left and right main longitudinal members 29a and 29b (on the belt-like plate 34) of the transport cart 1 so that the wheels Wa on the left and right sides of the transported vehicle W can roll. The interval between Wa and the interval between the main longitudinal members 29a and 29b on the transport carriage 1 side are matched. Thus, the transported vehicle W transferred onto the transport carriage 1 at the entrance of the upper transport travel path 2 is subjected to the constant speed travel of the transport cart 1 on the upper transport travel path 2. A predetermined work is received by an operator who gets on the transport carriage 1 or by an automatic device. When the transported vehicle 1 carrying the transported vehicle W reaches the predetermined exit position of the upper transport travel path 2, the transported vehicle W that has completed the work is self-propelled by driving of the boarded driver, The vehicle exits from the transporting cart 1 via the vehicle exit path forming floor 11. As shown in FIG. 6 and FIG. 7A, on both the left and right sides of the upper transport travel path 2, the worker walks at substantially the same level as the surface of each transport carriage 1 that travels at a constant speed along the upper transport travel path 2. The floor material 46 can be installed on the building side.

上側搬送用走行経路２の出口所定位置で被搬送車両Ｗを降ろした空の搬送台車１は、搬送用走行経路２の出口の摩擦駆動定速送出し手段１３により、この上側搬送用走行経路２の出口に対応する上昇限高さで待機している搬送台車昇降装置５の昇降台５ａ，５ｂ上に送り出され、当該搬送台車１が摩擦駆動定速送出し手段１３から離れると同時に、昇降台５ａ，５ｂが備える摩擦駆動高速引込み送出し手段１７によって引き継がれ、その高速引込み作用により、直後の搬送台車１から引き離されて昇降台５ａ，５ｂ上に乗り移ることになる。このとき搬送台車１は、その左右両側辺の走行方向複数の被支持用ローラー２６ａ，２６ｂが昇降台５ａ，５ｂ上を転動する状態で当該昇降台５ａ，５ｂ上に支持されて移動する。昇降台５ａ，５ｂ上に移された搬送台車１は、当該昇降台５ａ，５ｂが下降限高さまで下降することにより、下側戻し用走行経路３の入り口に対応する位置まで降ろされる。このとき、車輪２５ａ，２５ｂが着床して、左右両側の被支持用ローラー２６ａ，２６ｂが昇降台５ａ，５ｂから少し浮き上がった状態になり、昇降台５ａ，５ｂは、搬送台車１を支持しない状態になる。   An empty transport cart 1 that has lowered the transported vehicle W at a predetermined position at the exit of the upper transport travel path 2 is moved to the upper transport travel path 2 by the friction drive constant speed delivery means 13 at the exit of the transport travel path 2. Is sent out onto the lifting platforms 5a and 5b of the transporting cart lifting device 5 waiting at the height limit corresponding to the exit of the transporting platform 5, and at the same time the transporting cart 1 is separated from the friction drive constant speed delivery means 13, It is taken over by the friction drive high-speed pull-in / feed-out means 17 provided in 5a, 5b, and is pulled away from the transport carriage 1 immediately after by the high-speed pull-in action, and is transferred onto the lifts 5a, 5b. At this time, the transport carriage 1 moves while being supported on the lifting platforms 5a and 5b in a state where a plurality of supported rollers 26a and 26b on both left and right sides roll on the lifting platforms 5a and 5b. The transport carriage 1 moved onto the lifts 5a, 5b is lowered to a position corresponding to the entrance of the lower return travel path 3 when the lifts 5a, 5b are lowered to the lower limit height. At this time, the wheels 25a and 25b are landed, and the left and right supported rollers 26a and 26b are slightly lifted from the lifts 5a and 5b, and the lifts 5a and 5b do not support the transport carriage 1. It becomes a state.

この後、下側戻し用走行経路３の入り口に対応する位置まで降ろされた搬送台車１が、摩擦駆動高速引込み送出し手段１７の高速送出し作用により下側戻し用走行経路３の入り口へ送り出される。昇降台５ａ，５ｂの上側から搬送台車１が下側戻し用走行経路３へ完全に送り出された後、昇降台５ａ，５ｂが再び上昇限高さまで上昇し、上側搬送用走行経路２に接続される。以上の動作が完了する間に、上側搬送用走行経路２上の次の搬送台車１からの被搬送車両Ｗの退出が完了し、空になった当該搬送台車１が、上側搬送用走行経路２に接続された昇降台５ａ，５ｂ上に送り出される。   Thereafter, the transport carriage 1 lowered to a position corresponding to the entrance of the lower return travel path 3 is sent out to the entrance of the lower return travel path 3 by the high speed delivery action of the friction drive high speed retracting delivery means 17. It is. After the transport carriage 1 is completely sent out from the upper side of the lifts 5a and 5b to the lower return travel path 3, the lifts 5a and 5b rise again to the upper limit height and are connected to the upper transport travel path 2. The While the above operation is completed, exit of the transported vehicle W from the next transport carriage 1 on the upper transport travel path 2 is completed, and the transport cart 1 that has become empty becomes the upper transport travel path 2. Are sent out to the lifts 5a and 5b connected to the.

一方、下側戻し用走行経路３では、搬送台車昇降装置５から高速で送り出されて摩擦駆動定速送込み手段１４による定速送込み作用を受ける所定位置に達した最後尾の搬送台車１が、当該摩擦駆動定速送込み手段１４によって定速で前進駆動され、この下側戻し用走行経路３内の全ての搬送台車１を突き押し駆動することになる。従って、この下側戻し用走行経路３内の全ての搬送台車１は、上側搬送用走行経路２内で被搬送車両Ｗを搬送する搬送台車１とは逆方向に前進走行しながら、上側搬送用走行経路２を走行する各搬送台車１を支持する走行路となっている。   On the other hand, in the lower return travel path 3, the last transport carriage 1 that has been sent from the transport carriage lifting / lowering device 5 at a high speed and has reached a predetermined position subjected to the constant speed feeding action by the friction drive constant speed feeding means 14 is provided. The friction drive constant speed feeding means 14 drives forward at a constant speed, and pushes and drives all the transport carriages 1 in the lower return travel path 3. Accordingly, all the transport carts 1 in the lower return travel path 3 travel forward in the opposite direction to the transport cart 1 that transports the transported vehicle W in the upper transport travel path 2, while moving upward. It is a travel path that supports each transport carriage 1 traveling on the travel path 2.

下側戻し用走行経路３の出口に達した搬送台車１は、当該戻し用走行経路３の出口の摩擦駆動定速送出し手段１５により、下降限高さで待機している搬送台車昇降装置４の昇降台４ａ，４ｂ上に送り出され、当該搬送台車１が摩擦駆動定速送出し手段１５から離れると同時に、昇降台４ａ，４ｂが備える摩擦駆動高速引込み送出し手段１６によって引き継がれ、その高速引込み作用により直後の搬送台車１から引き離されて、下降限高さの昇降台４ａ，４ｂ上の位置まで引き込まれる。このとき搬送台車１は、車輪２５ａ，２５ｂを介して床面（扁平レール４５ａ，４５ｂ）上を走行し、その左右両側辺の走行方向複数の被支持用ローラー２６ａ，２６ｂは、昇降台４ａ，４ｂの少し上を移動し、下降限高さの昇降台４ａ，４ｂは、搬送台車１を支持していない。このようにして摩擦駆動高速引込み送出し手段１６によって所定位置まで引き込まれた搬送台車１は、昇降台４ａ，４ｂの上昇により、左右両側辺の被支持用ローラー２６ａ，２６ｂを介して当該昇降台４ａ，４ｂに支持される。そしてこの状態での昇降台４ａ，４ｂの上昇限高さまでの上昇により、当該搬送台車１は、上側搬送用走行経路２の入り口に対応する高さまで上げられた後、摩擦駆動高速引込み送出し手段１６の高速送出し作用により上側搬送用走行経路２の入り口へ送り出される。空になった昇降台４ａ，４ｂは、再び下降限高さまで下降し、下側戻し用走行経路３からの搬送台車１の受け入れに備える。上側搬送用走行経路２の入り口へ送り出された搬送台車１は、当該搬送用走行経路２の入り口の摩擦駆動定速送込み手段１２に引き継がれて定速駆動され、この搬送用走行経路２内の全ての搬送台車１を定速で突き押し駆動する状態になると共に、車両進入路形成床材８上で待機していた被搬送車両Ｗが自走により乗り移されることになる。   The transport carriage 1 that has reached the exit of the lower return travel path 3 is transported to the transport carriage lifting / lowering device 4 waiting at the lower limit by the friction drive constant speed delivery means 15 at the exit of the return travel path 3. The transport carriage 1 is separated from the friction drive constant speed delivery means 15 and simultaneously taken over by the friction drive high speed pull-in delivery means 16 included in the elevation stands 4a and 4b. It is pulled away from the transport carriage 1 immediately after it by the pulling action, and pulled to a position on the lifting platforms 4a and 4b at the lower limit height. At this time, the transport carriage 1 travels on the floor surface (flat rails 45a, 45b) via the wheels 25a, 25b, and a plurality of supported rollers 26a, 26b on the left and right sides of the transport cart 1 The elevators 4 a and 4 b that move slightly above 4 b and have a lower limit height do not support the transport carriage 1. In this way, the carriage 1 drawn to the predetermined position by the friction drive high-speed pull-in / out means 16 is moved up and down by the lifts 4a and 4b via the supported rollers 26a and 26b on the left and right sides. Supported by 4a and 4b. In this state, the transport carriage 1 is raised to the height corresponding to the entrance of the upper transport travel path 2 by raising the lift bases 4a, 4b to the upper limit height, and then the friction drive high-speed pull-in delivery means. 16 is sent to the entrance of the upper conveyance travel path 2 by the high-speed delivery action. The empty elevators 4a and 4b are lowered again to the lower limit height, and are prepared for receiving the transport carriage 1 from the lower return travel path 3. The transport carriage 1 sent to the entrance of the upper transport travel path 2 is taken over by the friction drive constant speed feeding means 12 at the entrance of the transport travel path 2 and is driven at a constant speed. All the transport carts 1 are pushed and driven at a constant speed, and the transported vehicle W waiting on the vehicle entry path forming floor material 8 is transferred by self-propelled driving.

尚、搬送台車昇降装置４，５の摩擦駆動高速引込み送出し手段１６，１７によって高速引込み又は高速送出し作用を受ける搬送台車１は、下側戻し用走行経路３のレベルでは車輪２５ａ，２５ｂを介して床面（扁平レール４５ａ，４５ｂ）に支持され、上側搬送用走行経路２のレベルでは被支持用ローラー２６ａ，２６ｂを介して昇降台４ａ，４ｂ／５ａ，５ｂ上に支持されているだけである。従って、この昇降台４ａ，４ｂ／５ａ，５ｂ上の位置での搬送台車１の走行方向を規制するために、図２及び図３に示すように、上下両走行経路２，３に併設されたガイド手段１８，１９と同様に、搬送台車１の左右両側辺を挟むガイドローラー４７ａ，４８ａを昇降台４ａ，４ｂ／５ａ，５ｂ上に走行方向適当間隔おきに軸支して成るガイド手段４７，４８を併設しておくことが出来る。   Note that the transport carriage 1 that receives high-speed pull-in or high-speed feed action by the friction drive high-speed pull-in and feed means 16 and 17 of the transport carriage lifting and lowering devices 4 and 5 has the wheels 25a and 25b at the level of the lower return travel path 3. And is supported on the lifting platforms 4a, 4b / 5a, 5b through the supported rollers 26a, 26b at the level of the upper conveyance travel path 2. It is. Accordingly, in order to regulate the traveling direction of the transport carriage 1 at the positions on the lifting platforms 4a, 4b / 5a, 5b, as shown in FIG. 2 and FIG. Similar to the guide means 18 and 19, guide means 47, which are formed by supporting guide rollers 47a and 48a sandwiching the left and right sides of the transport carriage 1 on the elevating bases 4a, 4b / 5a and 5b at appropriate intervals in the traveling direction, 48 can be added.

本発明の構成は、実施例で示したように、下側戻し用走行経路３を移動する搬送台車１を支持用路面として、上側搬送用走行経路２の搬送台車１が移動する特殊な構成の上下循環型の搬送装置だけでなく、上側搬送用走行経路２に専用のガイドレールが架設された一般的な上下循環型の搬送装置や、上側の搬送用走行経路２と下側の戻し用走行経路３とが、搬送台車昇降装置４／５を前後から挟むように配設されて、上下両走行経路２，３における搬送台車１の走行方向が同一になる搬送装置においても活用することが出来る。勿論、各搬送台車を走行経路において推進させる走行用駆動手段も、実施例に示したような摩擦駆動手段に限定されない。   As shown in the embodiment, the configuration of the present invention has a special configuration in which the transport carriage 1 of the upper transport travel path 2 moves using the transport cart 1 that moves the lower return travel path 3 as a support road surface. In addition to the vertical circulation type conveyance device, a general vertical circulation type conveyance device in which a dedicated guide rail is installed on the upper conveyance traveling route 2 or the upper conveyance traveling route 2 and the lower return traveling. The path 3 is disposed so as to sandwich the transport carriage lifting device 4/5 from the front and rear, and can be used in a transport apparatus in which the travel directions of the transport carriage 1 in the upper and lower travel paths 2 and 3 are the same. . Of course, the driving means for propelling each transport cart in the travel route is not limited to the friction driving means as shown in the embodiment.

本発明の搬送台車昇降装置付き搬送装置は、自動車の組み立てラインなどにおいて、上下高さの異なる走行経路間で搬送台車を昇降移載させる必要のある搬送装置として活用することが出来る。   The transfer apparatus with a transfer carriage lifting / lowering apparatus of the present invention can be used as a transfer apparatus that needs to move the transfer carriage up and down between traveling paths having different vertical heights in an automobile assembly line or the like.

１ 搬送台車
２ 上側搬送用走行経路
３ 下側戻し用走行経路
４，５ 搬送台車昇降装置
４ａ，４ｂ／５ａ，５ｂ 昇降台
６，９ 水平路面部
７ 昇り傾斜路面部
８ 車両進入路形成床材
１０ 下り傾斜路面部
１１ 車両退出路形成床材
１２，１４ 摩擦駆動定速送込み手段
１３，１５ 摩擦駆動定速送出し手段
１６，１７ 摩擦駆動高速引込み送出し手段
１８，１９，２３，４７，４８ ガイド手段
１８ａ，１９ａ，２３ａ，４７ａ，４８ａ ガイドローラー
２０ 摩擦駆動ローラー
２１ モーター
２２ 摩擦駆動手段
２２ａ，２２ｂ 摩擦駆動ユニット
２４ 台車本体
２５ａ，２５ｂ 車輪
２６ａ，２６ｂ 被支持用ローラー
２９ａ，２９ｂ 主縦材
３０ 連結フレーム
３１ａ，３１ｂ 張出し床部
３２ａ，３２ｂ 縦材
３３，３５，３８ 連結材
３４ 帯状板
３５ａ，３８ａ 台車床材
３６ 副縦材
３７ 帯状取付け板
４５ａ，４５ｂ 扁平レール
４６ 床材
５０ 昇降駆動手段
５１ パンタグラフリンク機構
５２ カム従動ローラー
５３ スライドカム
５４ 駆動用アクチュエーター
５５ 昇降台本体
５６ 台車支持部
５７ 被支持部 DESCRIPTION OF SYMBOLS 1 Transfer trolley 2 Upper side travel travel path 3 Lower return travel path 4,5 Transport trolley elevating device 4a, 4b / 5a, 5b Elevation base 6,9 Horizontal road surface part 7 Rising slope road surface part 8 Vehicle entrance path formation floor DESCRIPTION OF SYMBOLS 10 Down slope road surface part 11 Vehicle exit path formation floor material 12,14 Friction drive constant speed sending means 13,15 Friction drive constant speed sending means 16,17 Friction drive high speed drawing-in means 18,19,23,47, 48 Guide means 18a, 19a, 23a, 47a, 48a Guide roller 20 Friction drive roller 21 Motor 22 Friction drive means 22a, 22b Friction drive unit 24 Dolly body 25a, 25b Wheels 26a, 26b Supported rollers 29a, 29b Main longitudinal members 30 Connecting frame 31a, 31b Overhanging floor 32a, 32b Vertical member 33, 35, 38 Connecting member 34 Band shape Plate 35a, 38a Bogie floor material 36 Sub-vertical material 37 Band-shaped mounting plate 45a, 45b Flat rail 46 Floor material 50 Elevating drive means 51 Pantograph link mechanism 52 Cam driven roller 53 Slide cam 54 Actuator for driving 55 Elevating base body 56 Cart support section 57 Supported parts

Claims (3)

上側走行経路と下側走行経路、これら上下両走行経路上を走行可能な搬送台車、及び前記上下両走行経路間で搬送台車を乗り移りさせるための搬送台車昇降装置を備えた搬送装置において、前記下側走行経路は、搬送台車昇降装置の内部まで連続して形成され、前記搬送台車は、車輪を備えた台車本体から左右両側に張り出す張出し床部を備え、前記搬送台車昇降装置は、搬送台車の前記左右両側張出し床部を各別に支持する左右一対の昇降台を有し、この左右一対の昇降台には、当該昇降台が下降限高さにあるとき、下側走行経路の高さで搬送台車昇降装置の内外間で移動する搬送台車の前記左右両側張出し床部より下側に位置する台車支持部が設けられ、左右一対の昇降台が上昇限高さにあるとき、各昇降台の台車支持部によって左右両側張出し床部が支持された搬送台車が、上側走行経路との間で乗り移り移動可能に構成されている、搬送台車昇降装置付き搬送装置。   In the transport apparatus provided with the upper travel path and the lower travel path, a transport carriage capable of traveling on both the upper and lower travel paths, and a transport carriage lifting device for transferring the transport carriage between the both upper and lower travel paths, The side travel path is continuously formed up to the inside of the transport carriage lifting device, and the transport cart includes an overhanging floor portion that protrudes from the cart body provided with wheels to the left and right sides, and the transport cart lifting device includes the transport cart. A pair of left and right lifting platforms that individually support the left and right side extended floors, and the pair of left and right lifting platforms has a height of the lower travel path when the lifting platform is at a lower limit height. When a carriage support unit is provided below the left and right side extended floors of the conveyance carriage that moves between the inside and outside of the conveyance carriage raising and lowering device, and when the pair of left and right elevation stands are at the upper limit height, Both left and right by the carriage support Transport carriage which overhang the floor portion is supported is movably configured Noriutsuri between the upper running path, the conveyance carriage lifting device with conveying device. 下側走行経路は床面上に形成され、左右一対の昇降台の台車支持部は、当該昇降台が下降限高さにあるとき、搬送台車昇降装置内の下側走行経路上に位置する搬送台車の左右両側張出し床部と床面との間に入り込むように、各昇降台の下端から内側へ片持ち状に連設され、搬送台車の左右両側張出し床部には、左右一対の昇降台が下降限高さより上方位置にあるとき、各昇降台の台車支持部上に支持されて搬送台車乗り移り移動時に転動し得るローラーが設けられている、請求項１に記載の搬送台車昇降装置付き搬送装置。   The lower travel path is formed on the floor, and the carriage support portions of the pair of left and right lifting platforms are located on the lower traveling path in the transport carriage lifting device when the lifting platform is at the lower limit height. A pair of left and right lifting platforms are provided in a cantilevered manner from the lower end of each lifting platform so as to enter between the left and right projection floors of the carriage and the floor surface. 2. The transport carriage lifting and lowering device according to claim 1, further comprising a roller that is supported on the carriage support portion of each lifting platform and capable of rolling when the carriage moves when the carriage is at a position above the lower limit height. Conveying device. 搬送台車の左右両側張出し床部は、前記台車本体の上面と面一の上面を有するが、厚さは、前記台車本体よりも薄く構成されている、請求項１又は２に記載の搬送台車昇降装置付き搬送装置。
The left and right side protruding floor portions of the transport carriage have an upper surface that is flush with the upper surface of the carriage body, and the thickness is lower than that of the carriage body. Conveyor with equipment.

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