【０００１】
【発明の属する技術分野】
本発明は、自動車の組立ライン等に用いられ、コンベア等の搬送装置上を搬送されるパレット等の被搬送物を一旦停止させたり、停止を解除して搬送を許容したりする被搬送物停止装置に関し、特に停止時の反力を容易に受け止めることができる被搬送物停止装置に関する。
【０００２】
【従来の技術】
従来の被搬送物停止装置１００は、図７、図８に示すように、搬送装置８０の被搬送物５０が搭載される面の下側に取り付けられたブラケット１３０にヒンジピン１４０を介して一端を支持され、他端に、回動自在で、被搬送物５０が係止する鉤型の係止部３１０を形成し、該係止部３１０と前記ヒンジピン１４０により支持された回動部との中間でシリンダ４００のシリンダロッド４１０に接続されたストッパ部材３００を、シリンダロッド４１０の伸縮により回動させることにより、ストッパ部材３００が上方に回動したときに前記係止部３１０が被搬送物５０と係合して被搬送物５０を停止させ、ストッパ部材３００が下方に回動したときに前記係止部３１０が被搬送物５０との係合を解除して被搬送物５０の移動を許容するようになっていた。
【０００３】
ところが、この従来の被搬送物停止装置１００では、質量の大きな被搬送物５０がストッパ部材３００の係止部３１０に係合すると、その反力が衝撃となってシリンダ４００に加わることとなり、シリンダ４００の寿命が短くなったり、衝撃に耐えうるような容量の大きなシリンダ４００とする必要があり、被搬送物停止装置が大型になり高価になるという問題がある。
【０００４】
そこで、シリンダへの衝撃を和らげるために、特開２００２−２７４６４０号公報（以下、「特許文献１」という。）に記載されたパレットストッパ装置が提案されている。この特許文献１に記載のパレットストッパ装置は、第１図、第４図に示されるように、矩形状の厚鋼板からなる基台１の上面にＴ字断面のガイドレール２が固定され、ガイドレール２の上面には、該ガイドレール２を跨いで係合するコ字状断面の楔部材３が摺動可能に配置されている。
楔部材３はエアシリンダ７の駆動によりガイドレール２に沿って摺動する。楔部材３の一端には、所定角度の傾斜部３ａが形成されている。
楔部材３の上側には、ストッパ４が配置され、ストッパ４は搬送パレットＰの進行方向に向いた一端に上方に突出した鉤部４ａを備え、他端は基台１に固定された二つのストッパ支持部５、５によって枢支され、鉤部４ａ下側のコーナ部には下方に回動した際にガイドレール２との干渉を避けるための切り込み４ｃを設けている。
そして、搬送パレットＰを停止させるために、エアシリンダ７を作動させてストッパ４とガイド部材２間に楔部材３を差し込んだ状態にする。
【０００５】
【特許文献１】
特開２００２−２７４６４０号公報
【０００６】
【発明が解決しようとする課題】
ところが、上記特許文献１に記載のパレットストッパ装置においては、搬送パレットＰを停止させ、ストッパ４の鉤部４ａが搬送パレットＰにより押圧された状態から楔部材３を後退させて搬送パレットＰの停止を解除する場合は、楔部材３とストッパ４との当接面が水平面であるため摩擦力が大きく、楔部材３がストッパ４とガイド部材２間に挟まれた状態となり、楔部材３を後退させずらい。したがって、楔部材３を移動させるためのエアシリンダ７に大きな容量のものを使用する必要があり、パレットストッパ装置が大きくなるという問題がある。
【０００７】
そこで、本発明は、かかる課題を解決すべく、ストッパ部材が被搬送物に係合して被搬送物が停止している状態で、被搬送物による押圧力がストッパ部材に継続してかかっていても、係合を解除する方向に楔部材を容易に駆動することができるようにした被搬送物停止装置を提供することを目的とする。
【０００８】
【課題を解決するための手段】
本発明に係る請求項１に記載の搬送装置の被搬送物停止装置は、被搬送物を搬送する搬送装置の終端近傍に設けられ、前記被搬送物に係合して該被搬送物を一旦停止させ、係合を解除して被搬送物の移動を許容する被搬送物停止装置であって、搬送方向と平行に固定したレール上を摺動する楔部材を前進させて下面に挿入することにより上方に回動させられて前記被搬送物に係合するストッパ部材により前記被搬送物を停止させ、前記楔部材を後退させることにより前記係合を解除する被搬送物停止装置において、前記楔部材は、搬送方向先端に行くほど下降する傾斜面を有し、前記ストッパ部材が、前記被搬送物に係合する係合面と、前記楔部材の前記傾斜面に当接する押圧面とを有し、前記楔部材が前進して前記ストッパ部材を上方に回動させ、前記係合面を被搬送物と係合させることにより被搬送物を停止させたときに、前記楔部材の前記傾斜面と前記ストッパ部材の前記押圧面が当接するようにしたことを特徴とする。
よって、ストッパ部材を上方に回動させて被搬送物と係合して被搬送物を停止させたときに、楔部材の傾斜面とストッパ部材の押圧面の両傾斜面が当接するようにしたので、ストッパ部材に大きな力がかかっていても該ストッパ部材の係合を解除する方向に前記楔部材を容易に駆動することができる。
【０００９】
【発明の実施の形態】
次に、本発明に係る搬送装置の被搬送物停止装置の一の実施の形態について図面を参照して以下に説明する。本実施の形態の搬送装置の被搬送物停止装置は、自動車ボデーの組立ラインの搬送装置に設けられたものである。
ここで、図１は、被搬送物停止装置が被搬送物に係合している状態を示した側面断面図であり、図２はその正面図であり、図３はその平面図である。
なお、本実施の形態の説明で使用する符号は、前記特許文献１で使用した符号とは無関係である。
また、本実施の形態の説明で使用する前後方向とは、搬送方向の上流から下流方向を前方といい、図１、図３、図５および図６では左方を前方とする。
【００１０】
（構成） 本実施の形態の被搬送物停止装置の構成について説明する。被搬送物停止装置１は、図１乃至図３に示すように、搬送装置８０の骨部材８１に取り付けられて搬送方向と平行に固定したレール１０と、該レール１０上を前後方向に摺動する楔部材２０と、該楔部材２０の摺動により上下方向に回動させられて被搬送物５０に係合又は係合解除して、被搬送物５０を停止あるいは停止を解除して移動を許容するストッパ部材３０と、前記楔部材２０を前後方向に駆動するシリンダ４０とから構成されている。
【００１１】
レール１０は、搬送装置８０の被搬送物５０が載置される面の下側で、搬送方向と平行に配設された長尺平板状の骨部材８１の上面に取り付けられ、上面に前後方向に所要長さの凹溝１１１を設けたフレーム１１と、前記凹溝１１１の左右両側角部に収納固定された左右一対のロアレール１２１と、下面を前記凹溝１１１の左右両外縁のフレーム１１上面に固定され、互いに対向する内側面の下部がＬ字状に削られて前記ロアレール１２１の上面とにより横方向に開口して対向する溝部１２２を形成する左右一対のアッパレール１２と、該アッパレール１２のさらに外側のフレーム１１の上面に起立状に取り付けられたブラケット１３等から構成されている。
【００１２】
前記レール１０の溝部１２２には、正面断面が凸字状の楔部材２０が、その下部の左右に拡がる翼部２３で前後方向に摺動可能に係合している。
前記楔部材２０は、後部に前記凸字断面の凸部２４から上方に盛り上がった軸支部２２が形成され、前部の上面に搬送方向先端に行くほど下降する傾斜面２１が形成された側面視Ｌ字状のものである。
前記軸支部２２には、前記フレーム１１の凹溝１１１後端より後部の上面に取り付けられたブラケット４５に水平方向に駆動するように固定されたシリンダ４０が、そのロッド４１の先端に取り付けられたクレビス４２を介して連結軸２５により連結されている。
したがって、前記楔部材２０は、レール１０の溝部１２２に案内されて、シリンダ４０の伸縮により前後方向に摺動するように支持されている。
【００１３】
前記ブラケット１３、１３は、前後方向に長い長方形の板状のものを前記フレーム１１の左右の最外側の上面に起立するように、各々溶接により取り付けられたものである。左右のブラケット１３、１３の、前記楔部材２０の凸部２４より高い位置に設けた軸孔１３１には、該軸孔１３１と同軸でブラケット１３、１３の両板の間に設けた軸受１４２と、該軸受１４２に外嵌されるパイプ１４１とを通る支持軸１４が貫通して、該パイプ１４１が回動可能に取り付けられている。
該パイプ１４１の左右方向中央部には、後述するストッパ３０が溶接されている。
また、前記ブラケット１３、１３に取り付けた支持軸１４上方のブラケット１３、１３の上面には、該左右のブラケット１３、１３を橋渡しするように、係止部材１５が、その前端が支持軸１４の中心の垂直延長線と略同一位置になるように取り付けられている。
【００１４】
前記ストッパ部材３０は、側面視で上方に回動して起立したときに前記軸支部３３に設けた孔部の中心と同位置の上方に、垂直な係合面３１１が設けられて左右に張り出した板状の係合部材３１を有し、該係合部材３１の前記係合面３１１とは反対の面から搬送方向前方にく字状の背面３４を形成し、該背面３４の下端から前記軸支部３３の下部に向かって上向きに傾斜する押圧面３２が形成された、前記楔部材２０の凸部２４と略等しい厚さの厚板製のものである。すなわち、押圧面３２はその先端が低く、後方に高い傾斜面となっている。
【００１５】
つぎに、搬送装置８０により搬送されてきた被搬送物５０には、図４に示すように、前記ストッパ部材３０が上方に回動して起立しているときに、その係合面３１１と当接する面として被搬送物５０の一般前面から後方に凹んだ係合凹部５１が形成されている。なお、この係合凹部５１は被搬送物５０の下面のみに設けてあればよく、上面は板で覆われていてもよい。
【００１６】
（作用） 次に、以上のように構成した本発明の実施の形態に係る搬送装置の被搬送物停止装置１の動作について説明する。
先ず、シリンダ４０のロッド４１が引き込まれた図６の状態では、楔部材２０も搬送方向後方に引かれた状態で停止している。すると、ストッパ部材３０も該楔部材３０との係合が解除されて、支持軸１４を中心として自重により反時計方向に回動し、背面３４がレール１０のフレーム１１に設けた凹溝１１１の底面と当接して止まっている。したがって、この状態では、ストッパ部材３０の係合面３１１は被搬送物５０の下面よりも下方に位置している。
【００１７】
次に、シリンダ４０に圧縮エアを注入あるいは油圧をかけてロッド４１を伸張させると、図５に示すように、クレビス４２を介して楔部材２０が前方に押し出され、該楔部材２０の先端がストッパ部材３０の押圧面３２に当接しながら押圧面３２を押圧する。
この押圧によりストッパ部材３０は支持軸１４を回動中心として徐々に時計回りに回動し、その係合面３１１が上昇するとともに、楔部材２０の先端面と傾斜面２１との交点の円形部が押圧面３２に線接触しながら、押圧面３２の、前記支持軸１４と反対側の先端に向かって進行する。
【００１８】
やがて、係合面３１１が略垂直となるようにストッパ部材３０が上方に回動して起立すると、図１に示すように、ストッパ部材３０の押圧面３２と楔部材２０の傾斜した傾斜面２１とが面接触状態となる。この状態でシリンダ４０の伸張を停止させる。
たとえ、シリンダ４０がさらに伸張してストッパ部材３０が時計方向に回動しても、ストッパ部材３０がブラケット１３上に取り付けた係止部材１５の前端に当接してその回動を停止させられるので、楔部材２０は常に押圧面３２に傾斜面２１で当接することとなる。
【００１９】
上記のようにストッパ部材３０が起立した状態のところに被搬送物５０が搬送装置８０により搬送されてくると、被搬送物５０の係合凹部５１がストッパ部材３０の係合面３１１に当接して、被搬送物５０が停止させられる。
被搬送物５０が係合面３１１に当接すると係合面３１１には大きな押圧力が加わるため、その押圧力はストッパ部材３０の押圧面３２から楔部材２０の傾斜面２１に加わるが、この押圧面３２と傾斜面２１は水平方向に対して傾斜した面で当接しているため、ストッパ部材３０に継続して被搬送物５０による押圧力がかかっていても、被搬送物５０とストッパ部材３０との係合を解除するときに、シリンダ４０の縮小による楔部材２０の後方移動が容易に行える。
【００２０】
このように、ストッパ部材３０が上方に回動して起立し、被搬送物５０に係合して被搬送物５０を停止させたときに、ストッパ部材３０の押圧面３２と楔部材２０の傾斜面２１との当接面が傾斜面になるようにしたので、ストッパ部材３０の係合面３１１に被搬送物５０による押圧力が継続してかかっていても、楔部材２０を後退させるときの摩擦力は小さいため、容易に後退させることができ、楔部材２０を駆動するシリンダ４０に大きな負荷をかけないことが可能となった。
【００２１】
【発明の効果】
本発明は、楔部材が前進してストッパ部材を上方に回動起立させ、ストッパ部材の係合面を被搬送物と係合させることにより被搬送物を停止させたときに、前記楔部材の傾斜面と前記ストッパ部材の押圧面の両傾斜面で当接するように構成したので、ストッパ部材と楔部材が傾斜面同士で当接することにより、ストッパ部材に被搬送物が係合して、ストッパ部材と楔部材との当接面に大きな力がかかっていても、ストッパ部材の係合を解除する方向に楔部材を容易に駆動することが可能となった。
【図面の簡単な説明】
【図１】本発明の一の実施の形態に係る搬送装置の被搬送物停止装置が被搬送物に係合している状態を示す側面断面図である。
【図２】本発明の一の実施の形態に係る搬送装置の被搬送物停止装置の正面図である。
【図３】本発明の一の実施の形態に係る搬送装置の被搬送物停止装置の平面図である。
【図４】本発明の一の実施の形態に係る搬送装置により搬送される被搬送物を示す斜視図である。
【図５】本発明の一の実施の形態に係る搬送装置の被搬送物停止装置の、ストッパ部材の起立途中の状態を示す側面断面図である。
【図６】本発明の一の実施の形態に係る搬送装置の被搬送物停止装置の、ストッパ部材の倒伏状態を示す側面断面図である。
【図７】一般的な搬送装置と、従来の被搬送物停止装置の概略を示す側面図である。
【図８】従来の被搬送物停止装置の側面図である。
【符号の説明】
１ 被搬送物停止装置
１０ レール
１３ ブラケット
２０ 楔部材
２１ 傾斜面
３０ ストッパ部材
３１１ 係合面
３２ 押圧面
４０ シリンダ
４１ ロッド
５０ 被搬送物
８０ 搬送装置[0001]
TECHNICAL FIELD OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention is used for an automobile assembly line or the like, and temporarily stops an object to be conveyed such as a pallet conveyed on a conveyor or other conveying device, or releases the stop to allow the conveyance to be stopped. The present invention relates to a device, and more particularly to a transferred object stopping device that can easily receive a reaction force at the time of stopping.
[0002]
[Prior art]
As shown in FIGS. 7 and 8, one end of the conventional transported object stopping device 100 is connected to a bracket 130 attached to a lower side of a surface of the transporting device 80 on which the transported object 50 is mounted via a hinge pin 140. At the other end, a rotatable hook-shaped locking portion 310 for locking the transferred object 50 is formed at the other end, and an intermediate portion between the locking portion 310 and the rotating portion supported by the hinge pin 140. By rotating the stopper member 300 connected to the cylinder rod 410 of the cylinder 400 by the expansion and contraction of the cylinder rod 410, when the stopper member 300 pivots upward, the locking portion 310 Engagement stops the transported object 50, and when the stopper member 300 rotates downward, the locking portion 310 releases the engagement with the transported object 50 to allow the transported object 50 to move. Like Which was.
[0003]
However, in the conventional transported object stopping device 100, when the transported object 50 having a large mass is engaged with the locking portion 310 of the stopper member 300, the reaction force thereof becomes an impact and is applied to the cylinder 400. It is necessary to shorten the life of the cylinder 400 or to provide the cylinder 400 with a large capacity to withstand an impact, and there is a problem that the transferred object stopping device becomes large and expensive.
[0004]
Therefore, in order to reduce the impact on the cylinder, a pallet stopper device described in Japanese Patent Application Laid-Open No. 2002-274640 (hereinafter referred to as “Patent Document 1”) has been proposed. In the pallet stopper device described in Patent Document 1, as shown in FIGS. 1 and 4, a guide rail 2 having a T-shaped cross section is fixed on an upper surface of a base 1 made of a rectangular thick steel plate. On the upper surface of the rail 2, a wedge member 3 having a U-shaped cross section that engages across the guide rail 2 is slidably disposed.
The wedge member 3 slides along the guide rail 2 by driving the air cylinder 7. At one end of the wedge member 3, an inclined portion 3a having a predetermined angle is formed.
A stopper 4 is disposed above the wedge member 3. The stopper 4 has a hook 4 a protruding upward at one end facing the traveling direction of the transport pallet P, and two other ends fixed to the base 1. The corners below the hooks 4a are provided with cuts 4c for avoiding interference with the guide rails 2 when turned downward.
Then, in order to stop the transport pallet P, the air cylinder 7 is operated so that the wedge member 3 is inserted between the stopper 4 and the guide member 2.
[0005]
[Patent Document 1]
JP 2002-274640 A
[Problems to be solved by the invention]
However, in the pallet stopper device described in Patent Literature 1, the transport pallet P is stopped, and the hook 4a of the stopper 4 is pressed by the transport pallet P to retract the wedge member 3 to stop the transport pallet P. Is released, the frictional force is large because the contact surface between the wedge member 3 and the stopper 4 is a horizontal plane, the wedge member 3 is sandwiched between the stopper 4 and the guide member 2, and the wedge member 3 is retracted. It is hard to do. Therefore, it is necessary to use a large-capacity air cylinder 7 for moving the wedge member 3, and there is a problem that the pallet stopper device becomes large.
[0007]
Therefore, in order to solve the above problem, the present invention is such that the stopper member is engaged with the transferred object and the transferred object is stopped, and the pressing force by the transferred object is continuously applied to the stopper member. It is another object of the present invention to provide a transported object stopping device that can easily drive a wedge member in a direction in which the engagement is released.
[0008]
[Means for Solving the Problems]
The transferred object stopping device of the transfer device according to claim 1 of the present invention is provided near the end of the transfer device that transfers the transferred object, and engages with the transferred object to temporarily stop the transferred object. A conveyed object stopping device that stops, disengages, and allows the conveyed object to move, wherein a wedge member that slides on a rail fixed parallel to the conveying direction is advanced and inserted into a lower surface. In the transported object stopping device, the transported object is stopped by a stopper member which is rotated upward by the stopper member and is engaged with the transported object, and the engagement is released by retreating the wedge member. The member has an inclined surface that descends toward the leading end in the transport direction, and the stopper member has an engagement surface that engages with the object to be transported, and a pressing surface that contacts the inclined surface of the wedge member. Then, the wedge member moves forward to rotate the stopper member upward. The inclined surface of the wedge member and the pressing surface of the stopper member come into contact with each other when the object is stopped by engaging the engagement surface with the object. And
Therefore, when the stopper member is rotated upward to engage with the transferred object and stop the transferred object, both the inclined surfaces of the wedge member and the pressing surface of the stopper member are brought into contact with each other. Therefore, even when a large force is applied to the stopper member, the wedge member can be easily driven in a direction in which the engagement of the stopper member is released.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of a transferred object stopping device of a transfer device according to the present invention will be described below with reference to the drawings. The transported object stopping device of the transport device according to the present embodiment is provided in a transport device of an assembly line of an automobile body.
Here, FIG. 1 is a side sectional view showing a state in which the transferred object stopping device is engaged with the transferred object, FIG. 2 is a front view thereof, and FIG. 3 is a plan view thereof.
Note that the reference numerals used in the description of the present embodiment are irrelevant to the reference numerals used in Patent Document 1.
Further, the front-back direction used in the description of the present embodiment refers to a direction from the upstream to the downstream in the transport direction as the front, and the left in FIGS. 1, 3, 5, and 6 as the front.
[0010]
(Configuration) The configuration of the transported object stopping device of the present embodiment will be described. As shown in FIGS. 1 to 3, the transported object stopping device 1 is attached to a bone member 81 of a transporting device 80 and fixed in parallel with the transport direction, and slides on the rail 10 in the front-rear direction. And the wedge member 20 is rotated in the vertical direction by sliding of the wedge member 20 to engage or disengage with the transported object 50, and stop or release the stop of the transported object 50 to move. It comprises an allowable stopper member 30 and a cylinder 40 for driving the wedge member 20 in the front-rear direction.
[0011]
The rail 10 is attached to the upper surface of a long flat plate-like bone member 81 disposed parallel to the transport direction below the surface on which the transported object 50 of the transport device 80 is placed, and is attached to the upper surface in the front-rear direction. , A pair of left and right lower rails 121 housed and fixed at both left and right corners of the groove 111, and a lower surface of the frame 11 on both left and right outer edges of the groove 111. And a pair of left and right upper rails 12, each of which has a lower portion of the inner side surface facing each other cut into an L-shape and is opened laterally by the upper surface of the lower rail 121 to form a facing groove portion 122. Further, it is composed of a bracket 13 and the like mounted upright on the upper surface of the outer frame 11.
[0012]
A wedge member 20 having a convex front section is engaged with the groove portion 122 of the rail 10 so as to be slidable in the front-rear direction by a wing portion 23 extending right and left at a lower portion thereof.
The wedge member 20 is formed in such a manner that a shaft support portion 22 is formed at a rear portion thereof, the support portion 22 rising upward from the convex portion 24 having a convex cross section, and an inclined surface 21 is formed on an upper surface of a front portion, the slope surface 21 descending toward the leading end in the transport direction. It is L-shaped.
A cylinder 40 fixed to a bracket 45 attached to the upper surface of the frame 11 at the rear from the rear end of the concave groove 111 to the shaft support portion 22 so as to be driven in the horizontal direction is attached to the tip of a rod 41 thereof. It is connected by a connecting shaft 25 via a clevis 42.
Therefore, the wedge member 20 is guided by the groove 122 of the rail 10 and is supported so as to slide in the front-rear direction by the expansion and contraction of the cylinder 40.
[0013]
The brackets 13 and 13 are respectively attached by welding so as to stand on the left and right outermost upper surfaces of the frame 11 in a rectangular plate shape long in the front-rear direction. The shaft holes 131 provided on the left and right brackets 13, 13 at positions higher than the protrusions 24 of the wedge member 20 are provided with bearings 142 provided between both plates of the brackets 13, 13 coaxially with the shaft holes 131. A support shaft 14 that passes through a pipe 141 that is externally fitted to the bearing 142 penetrates, and the pipe 141 is rotatably attached.
A stopper 30 described later is welded to the center of the pipe 141 in the left-right direction.
On the upper surfaces of the brackets 13, 13 above the support shaft 14 attached to the brackets 13, 13, a locking member 15 has a front end of the support shaft 14 so as to bridge the left and right brackets 13, 13. It is mounted so that it is located at approximately the same position as the vertical extension line at the center.
[0014]
The stopper member 30 is provided with a vertical engagement surface 311 above the same position as the center of the hole provided in the shaft support portion 33 when the stopper member 30 is turned upright in a side view and protrudes left and right. A plate-shaped engaging member 31, and a U-shaped back surface 34 is formed forward in the transport direction from a surface of the engaging member 31 opposite to the engaging surface 311. The wedge member 20 is formed of a thick plate having a pressing surface 32 inclined upward toward a lower portion of the shaft support 33 and having a thickness substantially equal to that of the projection 24 of the wedge member 20. That is, the pressing surface 32 has a lower end and a higher inclined surface rearward.
[0015]
Next, as shown in FIG. 4, when the stopper member 30 is turned upward and stands up, the object 50 conveyed by the conveying device 80 contacts the engagement surface 311. As a contact surface, an engagement concave portion 51 that is recessed rearward from a general front surface of the transported object 50 is formed. Note that the engagement concave portion 51 may be provided only on the lower surface of the transferred object 50, and the upper surface may be covered with a plate.
[0016]
(Operation) Next, the operation of the transported object stopping device 1 of the transport device according to the embodiment of the present invention configured as described above will be described.
First, in the state of FIG. 6 in which the rod 41 of the cylinder 40 is retracted, the wedge member 20 is also stopped while being pulled backward in the transport direction. Then, the engagement of the stopper member 30 with the wedge member 30 is released, and the stopper member 30 is rotated counterclockwise by its own weight about the support shaft 14, and the back surface 34 of the groove 11 formed in the frame 11 of the rail 10 is formed. It stops in contact with the bottom. Therefore, in this state, the engagement surface 311 of the stopper member 30 is located lower than the lower surface of the transported object 50.
[0017]
Next, when the rod 41 is extended by injecting compressed air or applying hydraulic pressure to the cylinder 40, the wedge member 20 is pushed forward through the clevis 42 as shown in FIG. The pressing surface 32 is pressed while contacting the pressing surface 32 of the stopper member 30.
Due to this pressing, the stopper member 30 gradually rotates clockwise about the support shaft 14, the engagement surface 311 thereof rises, and the circular portion at the intersection of the tip surface of the wedge member 20 and the inclined surface 21. Moves toward the front end of the pressing surface 32 on the side opposite to the support shaft 14 while making linear contact with the pressing surface 32.
[0018]
Eventually, when the stopper member 30 pivots upward and rises so that the engagement surface 311 becomes substantially vertical, as shown in FIG. 1, the pressing surface 32 of the stopper member 30 and the inclined surface 21 of the wedge member 20 are inclined. Are in surface contact. In this state, the extension of the cylinder 40 is stopped.
Even if the cylinder 40 extends further and the stopper member 30 rotates clockwise, the stopper member 30 comes into contact with the front end of the locking member 15 mounted on the bracket 13 so that the rotation is stopped. The wedge member 20 always comes into contact with the pressing surface 32 on the inclined surface 21.
[0019]
When the transported object 50 is transported by the transport device 80 while the stopper member 30 is in the upright state as described above, the engaging concave portion 51 of the transported object 50 comes into contact with the engaging surface 311 of the stopper member 30. Thus, the transferred object 50 is stopped.
When the transferred object 50 comes into contact with the engaging surface 311, a large pressing force is applied to the engaging surface 311, and the pressing force is applied from the pressing surface 32 of the stopper member 30 to the inclined surface 21 of the wedge member 20. Since the pressing surface 32 and the inclined surface 21 are in contact with each other on a surface inclined with respect to the horizontal direction, even if the pressing force by the transferred object 50 is continuously applied to the stopper member 30, the transferred object 50 and the stopper member When disengagement from the wedge member 30, the wedge member 20 can be easily moved rearward due to the contraction of the cylinder 40.
[0020]
As described above, when the stopper member 30 rotates upward and stands up, engages with the object 50 and stops the object 50, the pressing surface 32 of the stopper member 30 and the inclination of the wedge member 20 are inclined. Since the contact surface with the surface 21 is formed as an inclined surface, even when the pressing force by the transferred object 50 is continuously applied to the engagement surface 311 of the stopper member 30, the wedge member 20 is retracted. Since the frictional force is small, the wedge member 20 can be easily moved backward, so that a large load is not applied to the cylinder 40 for driving the wedge member 20.
[0021]
【The invention's effect】
According to the present invention, when the wedge member is moved forward and the stopper member is turned upward, and the engagement surface of the stopper member is engaged with the object to stop the transported object, Since the inclined surface and the pressing surface of the stopper member are configured to abut on both inclined surfaces, the stopper member and the wedge member abut against each other on the inclined surfaces, so that the transferred object is engaged with the stopper member, and the stopper is stopped. Even if a large force is applied to the contact surface between the member and the wedge member, the wedge member can be easily driven in the direction in which the engagement of the stopper member is released.
[Brief description of the drawings]
FIG. 1 is a side cross-sectional view showing a state in which a transferred object stopping device of a transfer device according to an embodiment of the present invention is engaged with a transferred object.
FIG. 2 is a front view of a transferred object stopping device of the transfer device according to one embodiment of the present invention.
FIG. 3 is a plan view of a transferred object stopping device of the transfer device according to one embodiment of the present invention.
FIG. 4 is a perspective view showing an object to be conveyed by a conveyance device according to one embodiment of the present invention.
FIG. 5 is a side cross-sectional view showing a state in which a stopper member is being erected in the transported object stopping device of the transporting device according to one embodiment of the present invention.
FIG. 6 is a side cross-sectional view showing a state in which a stopper member of the transported object stopping device of the transporting device according to one embodiment of the present invention is in a down state.
FIG. 7 is a side view schematically showing a general transport device and a conventional transported object stopping device.
FIG. 8 is a side view of a conventional transported object stopping device.
[Explanation of symbols]
Reference Signs List 1 conveyed object stopping device 10 rail 13 bracket 20 wedge member 21 inclined surface 30 stopper member 311 engaging surface 32 pressing surface 40 cylinder 41 rod 50 conveyed object 80 conveying device
