JP4428204B2 - Transport device - Google Patents

Description

  The present invention relates to a transport device that carries in and out the transported object to and from a processing tank for performing the process in order to perform a process such as an electrolytic coating process or a pretreatment thereof on a transported object (processed object).

  As a conventional transfer apparatus for carrying in and out a conveyed product (processed object) to and from a treatment tank for performing the above-described treatment, for example, for electrolytic coating treatment or pre-treatment of an automobile body in an automobile production factory. The front and rear ends of the support frame on which the transported object is placed are respectively connected to the ends of a pair of front and rear suspension ropes hanging from the lifting device incorporated in the carrier of the trolley conveyor, and the transported object is placed on the processing tank by the trolley conveyor. The transported object is lowered into the processing tank by the lifting device and immersed in the processing liquid in the processing tank, and the transported object is swung back and forth in the immersed state. There is one that lifts the conveyed product from the processing tank by the lifting device (see, for example, Patent Document 1). Since a flexible material such as a chain is used as the suspension rope in such a transport device, the inertial force, the viscous resistance force of the processing liquid, and the In some cases, the transported object may be swung unexpectedly due to buoyancy of air staying in the transported object, and the support frame may contact or collide with the processing tank side wall. In such a case, in order to avoid damage to the wall surface of the side wall or the support frame, it is necessary to slow down the operation speed at the time of transport, ascending / descending and swinging operations. Since this time becomes long, there is a problem that productivity is lowered.

  As an invention made to solve such a problem, the present applicant has applied as a transfer device, and is supported so as to be able to travel by a traveling rail and a guide rail parallel to the traveling rail vertically. A traveling frame having a pair of vertical struts separated from each other in the traveling direction along the traveling direction, and each of the pair of vertical struts supported by each of the vertical struts so as to be movable in the vertical direction is driven separately or simultaneously. Front and rear lifting members, a front vertical member whose upper end is connected to be swingable about a horizontal axis orthogonal to the front lifting member and the rail, and orthogonal to the rail provided at the lower end of the front vertical member A front support member having a front transverse member extending in the horizontal direction, a rear vertical member having an upper end coupled to the rear elevating member and the horizontal axis so as to be swingable about the horizontal axis, and a lower end of the rear vertical member. And the front transverse member A rear support member having a rear lateral member extending in a direction, a transport object support base pivotally connected between the front lateral member and the rear lateral member, and swinging the front support member forward A front stopper attached to the front elevating member, and a rear stopper attached to the rear elevating member for restricting rearward swing of the rear support member, the front support member and the rear support member Is restricted so as to limit the swing range in the front-rear direction (see Japanese Patent Application No. 2002-379402).

  The invention described in Japanese Patent Application No. 2002-379402 (hereinafter referred to as the “prior application invention”) is configured to swing in the horizontal direction (left-right direction) orthogonal to the rail of the support member that supports the transported object. In addition to restricting the swing range of the transported object in the front-rear direction, the transporting of the transported object into and out of the processing tank for performing the electrolytic coating process and the like and the swinging operation are safe and short. What to do on time. Moreover, the inclination with respect to the process liquid level in the said processing tank of the said conveyance thing can be made into a steeper angle further than the inclination angle based on the difference of the height of the said raising / lowering member before and behind, The said treatment tank of the said conveyance thing Thus, the lifting and lowering operation can be performed more smoothly, and the processing tank can be reduced in size, so that the space for the processing step can be reduced.

  In the prior application, as described above, the inclination of the transported object on the transported object support base with respect to the processing liquid level in the processing tank is made steeper than the inclination angle based on the difference in height between the front and rear lifting members. However, if the inclination of the conveyed product on the conveyed product support base with respect to the processing liquid level in the processing tank is increased, the conveyed product support table and the front and rear support members for supporting the conveyed product are provided. A phenomenon in which the form of the link mechanism suddenly changes and the posture and center of gravity of the transported object on the transported object support base change rapidly (hereinafter referred to as “ May be called a “jumping phenomenon”).

  Hereinafter, the jump phenomenon will be described with reference to the drawings. FIG. 13 is a partial sectional view for explaining the outline of the structure of the invention of the prior application and the jump phenomenon. In the figure, for the sake of clarity of comparison with the present invention, the reference numerals used in the embodiments of the present application are given to the same or corresponding portions. Further, the description will be given with the forward traveling side along the traveling rail 51 of the traveling frame 2 as the front (refer to the direction of arrow A in the figure). The transport device 101 is supported so as to be movable in the vertical direction along the front and rear vertical columns 4, 4, and is supported by the front and rear elevating members 15, 15 driven by the elevating driving devices 35, 35. For example, as shown in FIG. 13, the front lifting member 15 is lowered with respect to the rear lifting member 15, and the transported object 60 is tilted. When 60 is tilted forward (for example, about 60 ° with respect to the processing liquid level), the dead center of the link mechanism constituted by the transported object support base 30 that supports the transported object 60 and the front and rear support members 25 and 25. In order to approach, the form of the link of the link mechanism may change abruptly as indicated by an arrow J1 in the figure due to inertial force, viscous resistance force, and the like. Along with this change, a sudden change in the posture of the conveyed product 60 (see arrow J2 in the figure) and a sudden change in the position of the center of gravity G (see arrow J3 in the figure) occur. Further, the protruding amount of the conveyed product 60 forward from the vertical column 4 also changes from B to C in the figure. Further, such a jumping phenomenon occurs similarly when the rear elevating / lowering member 15 is lowered with respect to the front elevating / lowering member 15 and the conveyed product 60 is largely inclined rearward.

  When such a jumping phenomenon occurs, the support of the transported object 60 becomes unstable, and the elevating operation of the elevating members 15 and 15 for elevating the front and rear supporting members 25 and 25 and the like is not smooth. Further, a link mechanism composed of a transported object support base 30 for supporting the transported object 60 and front and rear support members 25, 25, front and rear vertical columns 4, 4 for supporting the lift members 15, 15, and lift drive devices 35, 35. Therefore, it is necessary to increase the strength and rigidity of the mechanical parts such as the link mechanism, and it is necessary to increase the capacity of the elevating drive devices 35 and 35.

  Therefore, in the configuration of the prior invention, it is necessary to limit the tilt angle of the conveyed product 60, and the maximum tilt angle of the conveyed product 60 needs to be, for example, about 55 ° with respect to the processing liquid level. This maximum inclination angle can be set to a larger inclination angle than in the case of the configuration of the prior art (see, for example, Patent Document 1). However, the maximum inclination angle is applied to the object to be processed 60 (for example, an automobile body). Air still remains and there is room for improvement in improving drainability when entering and leaving the processing liquid.

JP 2000-6792 A (page 2-3, FIG. 1-6)

  The present invention has been made in order to solve the above-described problems. For example, a conveyance object (an object to be processed) such as an automobile body in an automobile production factory is conveyed between each work process, and an electrolytic coating process. Or, when carrying up and down in the treatment tank and swinging movement in the treatment tank in the pre- and post-treatment, etc., the conveyed product is unexpectedly caused by inertial force, buoyancy, viscous resistance force, etc. acting on the conveyed product. In addition to the object of the invention of the prior application to obtain a transport device having a function of preventing the movement and performing a series of operations of the transported object stably and quickly, the problem of the jump phenomenon is solved and the transported object is solved. An object of the present invention is to obtain a transfer device capable of increasing the maximum inclination angle.

  In order to solve the above problems, the transport device according to the present invention is a pair of two rails that are supported by a traveling rail and a guide rail that is parallel to the traveling rail so as to be separated from each other in the front-rear direction along the traveling direction. A traveling frame having vertical struts, front and rear lifting members that are supported on each of the pair of vertical struts so as to be movable in the vertical direction along the vertical struts, and are driven separately or simultaneously, and the front lifting members And a front vertical member having an upper end coupled to be swingable about a horizontal axis orthogonal to the rail, and a front horizontal member extending at a horizontal direction orthogonal to the rail provided at a lower end of the front vertical member A front support member, a rear vertical member whose upper end is coupled to be swingable around the horizontal axis, and the rear vertical member, and a front vertical member provided at the lower end of the rear vertical member and extending in the same direction. A rear support member having a rear lateral member; A direction in which the one vertical member approaches the other vertical member as the height difference between the transport support base pivotally connected between the front lateral member and the rear lateral member and the front and rear lifting members increases. And a vertical member rocking restricting means for restricting rocking to the right.

  Here, the vertical member swing restricting means includes a rear link of the front vertical member or the front elevating member, a front link having an upper end coupled to be swingable around the horizontal axis, a lower end of the front link, and the horizontal The front / rear lifting and lowering is coupled to a lower end so as to be swingable about an axis, and includes a front surface of the rear vertical member or the rear lifting member and a rear link having an upper end connected to be swingable about the horizontal axis. A link mechanism that is substantially V-shaped when the height of the members is the same, and as the height difference between the front and rear lifting members increases, the connecting portion between the front link and the rear link is The lower link of the link mechanism is interposed between the front and rear longitudinal members so as to approach the higher one of the two and abut against the vertical member. One vertical member approaches the other vertical member Preferably it restricts that swings.

  A front stopper provided on the front elevating member for restricting forward swing of the front vertical member; and provided on the rear elevating member for restricting rearward swing of the rear vertical member. After that, it is preferable to provide a stopper.

  Furthermore, the upper side of the processing tank disposed at the lowering position of the conveyed product supported by the conveyed object support base at a predetermined position in the traveling direction of the traveling frame and the conveying space before and after the traveling direction on the upper side are covered. A partition is provided, and the lower part of the partition extends in the traveling direction so that the transported object moves in the ascending / descending direction or the traveling direction so as not to interfere with the longitudinal member of the support member, and the longitudinal member can pass therethrough. It is preferable that a slit is formed so that the main body side of the traveling frame, etc. is separated from the processing tank and the conveyance space by the partition wall.

  A transport device according to the present invention includes a traveling frame having a pair of vertical support columns that are supported by a traveling rail and a guide rail that is parallel to the traveling rail in the vertical direction and that are separated from each other in the traveling direction. Each of the pair of vertical struts is supported so as to be movable in the vertical direction along the vertical struts, and the front and rear lifting members that are driven separately or simultaneously, and the front lifting member and the horizontal that are orthogonal to the rails. A front support member having a front longitudinal member having an upper end coupled to be swingable about an axis, a front transverse member extending in a horizontal direction perpendicular to the rail provided at a lower end of the front longitudinal member, and the rear A rear vertical member having an upper end coupled to an elevating member and swingable about the horizontal axis, and a rear horizontal member provided at a lower end of the rear vertical member and extending in the same direction as the front horizontal member A support member, the front transverse member and the rear The one vertical member is restricted from swinging in the direction approaching the other vertical member as the height difference between the conveyance support base pivotally connected to the member and the front and rear elevating members increases. Since the vertical member swing restricting means is provided, the transport is compared with the structure in which the transported object is moved up and down by lifting and lowering a pair of front and rear suspension ropes made of a flexible material such as a chain hanging from the lifting device. By preventing the horizontal (right and left) swinging perpendicular to the rail due to the inertial force acting on the object, etc., it is possible to increase the operating speed at the time of transportation, lifting and lowering and swinging. Therefore, productivity can be improved. Further, since the form of the link of the link mechanism constituted by the transport object support base and the front and rear support members is not changed suddenly, the maximum inclination angle of the transport object can be increased, Can be substantially eliminated, and drainability when entering and exiting the treatment liquid can be greatly improved. Moreover, since the maximum inclination angle of the conveyed product can be increased, the speed of carrying the material into and out of the processing tank can be increased, and productivity can be further improved. Furthermore, since the amount of movement of the conveyed product in the front-rear direction when the conveyed product is inclined is small, the overall length of the processing tank can be shortened. Furthermore, since the amount of change in the center of gravity accompanying the posture change from the horizontal posture to the inclined posture of the conveyed product is small, it is possible to reduce the capacity of the lift drive device that lifts and lowers the front and rear lift members and to perform the lift operation. Become smooth.

  The vertical member swing restricting means includes a front link having an upper end coupled to the rear surface of the front vertical member or the front elevating member and the horizontal axis so as to be swingable about the horizontal axis, a lower end of the front link, and the horizontal shaft The front and rear elevating members having a lower end coupled to be swingable around and including a front surface of the rear vertical member or the rear elevating member and a rear link having an upper end coupled to be swingable about the horizontal axis. The link mechanism is substantially V-shaped when the heights of the front and rear are the same, and as the height difference between the front and rear elevating members increases, the connecting portion between the front link and the rear link is By approaching the vertical member closer to the higher position in the middle, the lower link of the link mechanism is interposed between the front and rear vertical members and stretched, and the higher position of the link mechanism Direction in which the vertical member approaches the other vertical member Since the swinging is restricted, the transported object is compared with the structure in which the transported object is raised and lowered by lifting and lowering a pair of front and rear suspension ropes made of a flexible material such as a chain hanging from the lifting device. Because it is possible to prevent the horizontal (right-and-left) swinging perpendicular to the rail due to the inertial force acting on the rail, etc., it is possible to increase the operating speed during transport, lifting and lowering. , Productivity can be improved. In addition, it is possible to reliably prevent the link form of the link mechanism configured by the transported object support base and the front and rear support members from changing suddenly while having a simple configuration, and the maximum tilt angle of the transported object. Therefore, it is possible to substantially eliminate air accumulation in the conveyed product and to greatly improve the drainability when entering and exiting the processing liquid. Moreover, since the maximum inclination angle of the conveyed product can be increased, the speed of carrying the material into and out of the processing tank can be increased, and productivity can be further improved. Furthermore, since the amount of movement of the conveyed product in the front-rear direction when the conveyed product is inclined is small, the overall length of the processing tank can be shortened. Furthermore, since the amount of change in the center of gravity accompanying the posture change from the horizontal posture to the inclined posture of the conveyed product is small, it is possible to reduce the capacity of the lift drive device that lifts and lowers the front and rear lift members and to perform the lift operation. Become smooth.

  A front stopper provided on the front elevating member for restricting forward swing of the front vertical member; and provided on the rear elevating member for restricting rearward swing of the rear vertical member. In addition, since it has a simple stopper, it is possible to suppress unexpected swinging of the transported object in the front-rear direction due to inertial force or the like acting on the transported object. In addition, the operation speed during the swinging operation can be increased, and the productivity can be improved. Further, since the front and rear stoppers can reliably limit the swing range in the front-rear direction of the front support member and the rear support member, reliability can be improved.

  Still further, an upper side of the processing tank disposed at a lower position of the conveyed product supported by the conveyed object support base at a predetermined position in the traveling direction of the traveling frame and a conveying space before and after the upper side in the traveling direction. A partition wall is provided, and extends in the traveling direction so that the transported object moves in the up-down direction or the traveling direction at the lower part of the partition wall so that it does not interfere with the longitudinal member of the support member, and the longitudinal member can pass therethrough. If the main body side such as the traveling frame and the treatment tank and the transfer space are separated from each other by the partition wall, the treatment liquid or water in the treatment tank is scattered, and the separation space is arranged in the transfer space. Failure due to splashing of processing liquid or water from the installed spray nozzle, etc., and corrosion due to corrosion of the machine part on the main body side due to evaporated processing liquid or water, or failure due to poor conduction of the electric system on the main body side, or low life Adverse effects etc. can be suppressed. Further, dust and oil generated from the movable part on the main body side are prevented from being mixed into the treatment liquid and adhering to the surface of the conveyed product.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and all the embodiments that satisfy the requirements described in the claims are described. Is included. In this specification, the forward traveling side is forward and forward (refer to the direction of arrow A in the figure) along the traveling rail of the traveling frame, the opposite side is rear and rear, and the forward traveling is performed in the direction orthogonal to the traveling rail. In the direction, the left side is left and left, and the opposite side is right and right.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing a transport apparatus according to Embodiment 1 of the present invention, and shows a state in which a transported object is lowered into a processing tank and its rear part is sunk downward. FIG. 2 is a partial right side cross-sectional view of the conveyed product of FIG. 1 in a state where it is kept horizontal, and a two-dot chain line shows a state where the conveyed product is lowered into the processing tank. FIG. 3 is also a rear partial sectional view (partial sectional view seen from the rear), and a two-dot chain line shows a state of the support member and the like when the conveyed product is raised. 4 is a partial right side sectional view in the state of FIG. 1, and FIG. 5 shows a state in which the heights of the front and rear lifting members are reversed from the state of FIG.

  In an automobile production line or the like, for example, a plurality of treatment tanks 54 or shower-type treatment facilities that perform an electrolytic coating process or a treatment before and after the opening that opens on the floor 50 and continues to the tank wall below the opening are arranged in order of the process. Has been placed. Aside from that, a transport facility for transporting a transported object (object to be processed) 60 (the body of an automobile in the case of the attached figure), for example, a travel laid directly on the floor 50 along the transport path or via an appropriate frame. A rail 51, a guide rail 53 installed on a frame or ceiling 52 provided above the rail 51 in parallel with the traveling rail 51 in the vertical direction, and a transport device that can move on the traveling rail 51 (for example, reference numeral 1 in the attached drawings) Or 1a etc.).

  In the figure, a conveying device 1 according to the present invention includes a base 3 provided with motor-driven drive wheels 7 and 7 in the vicinity of front and rear ends and capable of traveling on a traveling rail 51, and from the vicinity of front and rear ends of the base 3. A pair of vertical struts 4, 4 that are erected upward and separated in the front-rear direction along the traveling direction (refer to the arrow A direction in the figure as the forward traveling direction) and the upper ends of the vertical struts 4, 4 are connected to each other. A horizontal reinforcing member 5, supporting brackets 11, 11 projecting laterally in the vicinity of the front and rear ends of the reinforcing member 5, and guide portions provided on the supporting bracket 11 and in contact with the lower surface and both side surfaces of the guide rail 53 The vertical struts 4 and 4 are provided with elevating members 15 and 15 supported so as to be able to be raised and lowered, respectively.

  Further, elevating drive devices 35 and 35 capable of elevating and lowering the elevating members 15 and 15 individually or simultaneously are provided, respectively, and further extended toward the right side, that is, toward the conveyance path side toward the traveling direction of the traveling frame 2 at the lower end of the vertical member 26. A pair of substantially L-shaped support members 25, 25 each having a horizontal transverse member 27 that protrudes are pivotally supported on each elevating member 15 by the pivot 18 at the upper end of the vertical member 26, and the support member 25 , 25 and the horizontal members 27, 27 are pivotally connected to the horizontal members 27, 27 so as to tilt forward and backward. Further, an upper end 21 a of the front link 21 is connected to the rear surface of the vertical member 26 of the front support member 25 so as to be swingable about a horizontal axis orthogonal to the traveling rail 51. An upper end 22a of the rear link 22 is connected to the front face so as to be swingable around the horizontal axis. Furthermore, the lower end 21b of the front link 21 and the lower end 22b of the rear link 22 are connected so as to be swingable around the horizontal axis.

  When the heights of the front and rear elevating members 15 and 15 are not the same, that is, when the front elevating members 15 and 15 and the support members 25 and 25 have a height difference, the transport device 1 Between the horizontal members 27, 27, the front and rear horizontal members 27, 27 and the conveyed product support base 30 slidably mounted around the horizontal axis are tilted back and forth according to the height difference. Along with this inclination, the front support member 25 is pulled rearward and the rear support member 25 is pulled forward by the transported object support base 30 and slightly swung relative to each other. Further, since the front and rear support members 25 and 25 are pivotally supported by the pivot shafts 18 and 18, respectively, the front and rear support members 25 and 25 and the conveyed product support base 30 are swingable in the front and rear direction. Accordingly, as a means for restricting the swing range of the front and rear support members 25 and 25 in the front-rear direction, the support members 25 and 25 required for the maximum tilt of the front and rear of the transported object 60 are allowed to swing back and forth. The elevating members 15 and 15 are provided with stoppers 20 and 20 that abut the side surfaces of the support members 25 and 25 to restrict further back-and-forth swing.

  Next, the detailed structure of the transfer device 1 will be described in sequence below. First, for the traveling frame 2, the pair of vertical support columns 4, 4 erected from the base 3 is made of, for example, a square pipe material having a horizontal cross section, and its lower end is fixed to the base 3 with welding or bolts. To do. The distance between the pair of vertical support columns 4 and 4 can stably support the object to be processed (the body of the passenger car in the figure) 60 by the pair of front and rear support members 25 and 25, and can convey, lift, and tilt forward and backward. The interval is such that the operation can be performed without any problem. Before and after the base 3 of the traveling frame 2, there are traveling devices 6 each having driving wheels 7 each having a configuration in which a traveling driving motor 9 is connected to the shaft of the traveling wheel via a speed reducer or the like. , 7 allows the traveling frame 2 to be self-propelled on the traveling rail 51.

  The traveling device 6 is attached to the front and rear of the base 3 via a vertical support shaft 6a so as to be convertible in the left-right direction, and the drive wheels 7 follow the traveling rail 51 without being derailed even when the track of the traveling rail 51 is curved. It is configured to run. The drive wheel 7 may be either one of the front and rear wheels as a drive wheel and the other as a driven wheel. Alternatively, the drive wheel 7 may be a wheel that does not have a travel motor or a sliding piece that slides on the travel rail 51. Instead of this, the traveling frame may be connected to a chain or rope laid along the vicinity of the traveling rail 51, and the traveling frame 2 may be moved by pulling the chain or rope with another driving device.

  The guide portions 10, 10 provided before and after the reinforcing member 5 at the top of the traveling frame 2 are rotatable to the support brackets 11, 11 projecting from the vicinity of the front and rear ends of the reinforcing member 5 toward the guide rail 53, and to the respective support brackets 11. A pair of opposed horizontal rollers 13 and 13 and a single vertical roller 12 are provided. The horizontal rollers 13 and 13 are brought into contact with the left and right side surfaces of the guide rail 53, and the vertical roller 12 is brought into contact with the lower surface of the guide rail 53. As a result, the support frame 2 is restrained from falling to the right and left, and cooperates with the drive wheels 7 to support the travel frame 2 so as to be movable in the direction of the travel rail 51 and the guide rail 53.

  The guide portion 10 is provided with a horizontal overhanging portion on the opposite side to the guide rail 53, and a plurality of power feeding elements 56 are attached to the overhanging portion, and the movement trajectory of the power feeding element 56 during the traveling of the traveling frame 2 is faced. A power supply line 57 that is in contact with the power supply element 56 is installed on the ceiling 52 that receives power from the power supply line 57 via the power supply element 56 and is installed on the traveling frame 2 via a cable (not shown). Supply power to the control panel. Further, an appropriate position sensor (not shown) such as an encoder is provided at an appropriate location such as the drive wheel 7 of the travel frame 2 to detect the travel position, and the transport device 1 travels at each processing step position of the transported object 60. Stop. In other words, the position sensor is a means for detecting the position of the traveling frame such as a position at which the traveling operation is shifted to the raising / lowering operation and the forward / backward swing operation.

  When the guide rail 53 is installed at a low position in the vicinity of the floor surface 50 instead of the ceiling 52, the guide portion 10 is provided at a low position accordingly. Then, the horizontal roller 13 and the vertical roller 12 for preventing the fall and the lifting may be arranged in an appropriate posture and positional relationship according to the shape of the guide rail. Further, the horizontal roller 13 and the vertical roller 12 may be replaced with sliding pieces in contact with the guide rail. Or although illustration is abbreviate | omitted, about the guide rail, the form using a suitable vertical part and horizontal parts, such as a frame member which fixes and supports the traveling rail 51, as a member which bears the function of a guide rail may be sufficient.

  Next, the front and rear elevating members 15, 15 will be described. The elevating member 15 is rotatable about a horizontal axis above and below the frame member 16 with a frame member 16 surrounding the vertical strut 4 on the front and rear sides and the conveyance path side (support member 25 mounting side) with an appropriate gap. A plurality of rollers 19 that are opposed to each other with the vertical column 4 interposed therebetween and that are in contact with the vertical column 4 and guide and support the frame member 16 so as to be vertically movable, and a pivot mounting formed on the side wall on the support member 25 side. And a pivot 18 that is fixed to the pivot mounting portion 17 and pivotally supports the upper end of the support member 25 so that the upper end of the support member 25 can swing back and forth (to swing about a horizontal axis perpendicular to the traveling rail 51). . Further, the elevating members 15 and 15 are in contact with the side portions of the front and rear support members 25 and 25 pivotally supported by the pivot shafts 18 and 18 to limit the swing range of the front and rear support members 25 and 25 in the front-rear direction. Thus, stoppers 20 and 20 fixed to the pivot mounting portions 17 and 17 are provided. These stoppers 20 and 20 are, for example, positions where the conveyed object support base 30 is in contact with the respective inner side surfaces of the support members 25 and 25 in a state where the conveyed object support base 30 is tilted to the maximum, or What is necessary is just to provide in either of the positions which contact | abut to the outer surface of 25 respectively.

  Although not shown, the roller 19 can be replaced with a sliding piece that slides in contact with the vertical column 4. Further, the vertical support column 4 may be formed in any shape of a triangle, a polygon, a circle, and an ellipse in addition to the square pipe having a square horizontal section. The shape of the inner peripheral part of the frame member 16 is set to a shape that fits the vertical column 4. In addition, as a means for restricting the front and rear support members 25, 25 to limit the swing range in the front-rear direction, the configuration using the stopper is simple and preferable from the viewpoint of reliability and the like. The structure is not limited to the stopper. For example, an appropriate actuator and at least one of the pivot shafts 18 and 18 and the pivotal support portions 29 and 29 with the lateral members 27 and 27 of the transported object support base 30 described later, You may make it limit the rocking | fluctuation range of the front-back support members 25 and 25 in the front-back direction by providing a rotation angle sensor (for example, encoder etc.) or a limit switch.

  Next, the elevating drive devices 35 and 35 will be described. The elevating drive device 35 is installed in the vicinity of the upper and lower ends of each vertical column 4, 4 of the traveling frame 2 so as to be rotatable, and a chain 37 is wound around both the sprockets 36, 36a. Both ends are respectively engaged with engaging portions 38 and 38a formed above and below the elevating member 15 to constitute an endless elevating towing mechanism, and the lower sprocket 36a is elevating installed on the base 3 of the traveling frame 2. It is configured to be connected to the output shaft of the drive motor 39.

  The chain 37 may be provided with appropriate tension means such as a spring-type or screw-type tension device (not shown) in the locking portions 38, 38a. As a means for driving the chain 37, although not shown in the figure, a third sprocket that meshes with the chain 37 is disposed in the middle of the path of the chain 37, and the third sprocket is moved up and down. It is good also as a structure which connected with a drive motor and wound the chain 37 via the said 3rd sprocket. In any of the above cases, the chain and sprocket may be replaced with a wire rope and a pulley.

  Next, the front and rear support members 25 will be described. The support member 25 has a long vertical member 26 whose upper end is pivotally supported by the pivot 18 of the elevating member 15, and a horizontal horizontal member 27 that bends and extends from the lower end of the vertical member 26 toward the conveyance path. The transverse member 27 has a circular cross section perpendicular to the longitudinal direction thereof. The horizontal member 27 is formed integrally with the vertical member 26 as described above, and is divided into a vertical member 26a and a horizontal member 27a as in the case of another support member 25a illustrated in FIG. You may attach the horizontal member 27a to the lower end of this so that attachment or detachment is possible. With such a structure that can be divided, a plurality of irregularly shaped transverse members 27a that match the size and shape of various conveyed items are prepared, and can be appropriately replaced according to the type of conveyed item, or paint or the like can be attached. Convenient for maintenance work when worn out.

  Next, the front link 21 and the rear link 22 will be described. As described above, the front link 21 and the rear link 22 are connected so that their lower ends 21b and 22b can swing around a horizontal axis perpendicular to the traveling rail 51, and the upper ends 21a and 22a are connected to the elevating members 15 and 15 in the horizontal direction. The shaft is swingably connected. As shown in FIG. 2, when the front and rear elevating members 15 and 15 have the same height, the form of the link mechanism including the front link 22 and the rear link 23 is substantially V-shaped. The front link 21 and the rear link 22 have the same length, which is slightly shorter than the distance between the front and rear lifting members 15 and 15 when the front and rear lifting members 15 and 15 are in a suspended state. The dimensions are set. Then, as the height difference between the front and rear elevating members 15, 15 gradually increases, the lower end 21b, 22b, which is the connecting portion of the front link 21 and the rear link 22, is moved to the vertical member 26 of the support member 25 at the higher position. Approach and eventually abut. In addition, this contact part is a square tube in the attached figure of this application, since the vertical members 26 and 26 are shown as circular pipes, and the front link 21 and the rear link 22 are square pipes. Abutting members 23 and 24 are provided on a vertical member 26 which is a circular tube so as to receive the lower ends 21b and 22b which are connecting portions of the front link 21 and the rear link 22 with the surface. Moreover, you may make it the said contact part contact | abut directly the lower ends 21b and 22b of the said link mechanism, and the said vertical member.

  The upper end 21a of the front link 21 may be connected to the front elevating member 15 so as to be swingable around the horizontal axis. Further, the upper end 22a of the rear link 22 may be connected to the rear lifting member 15 so as to be swingable around the horizontal axis. Furthermore, the lengths of the front link 21 and the rear link 22 are not necessarily the same, and one of them may be formed longer.

  With such a configuration, as shown in FIG. 4, when the height of the rear elevating / lowering member 15 becomes lower than the height of the front elevating / lowering member 15 by a predetermined value or more, the rear link 22 of the link mechanism is connected to the front support member 25. By interposing and stretching between the vertical member 26 and the vertical member 26 of the rear support member 25, the backward swing of the front support member 25 is restricted. Further, as shown in FIG. 5, when the height of the front elevating member 15 is lower than the height of the rear elevating member 15 by a predetermined value or more, the front link 21 of the link mechanism is connected to the vertical member 26 of the rear support member 25. By swinging between the front support member 25 and the longitudinal member 26, the forward swing of the rear support member 25 is restricted. The predetermined value is set in consideration of the distance between the pair of vertical columns 4, 4, the maximum inclination angle of the conveyed product 60, and the like.

  That is, as the height difference between the front and rear elevating members 15 and 15 is gradually increased, the connecting portions 21b and 22b of the front link 21 and the rear link 22 are located at higher positions in the vertical member 26 of the support member 25. The one link 21 or 22 of the link mechanism at a low position is placed between the vertical member 26 of the front support member 25 and the vertical member 26 of the rear support member 25 by approaching the vertical member 26 and approaching the vertical member 26. Since the support member 25 at the high position is restricted from swinging toward the support member 25 at the low position, the vertical member 26 and the rear support member 25 of the front support member 25 are restricted. Narrowing of the interval is suppressed so that the interval with the vertical member 26 is not too narrow. By such a substantially V-shaped link mechanism by the front link 21 and the rear link 22, as the height difference between the front and rear elevating members 15, 15 increases, one vertical member 26 of the front and rear support members 25, 25 becomes the other. A vertical member swing restricting means that suppresses swinging in the direction approaching the vertical member 26 is configured.

  Next, the conveyed product support base 30 will be described. On the lateral members 27, 27 at the lower ends of the pair of front and rear support members 25, 25, a transported object support base 30 laid between the lateral members 27, 27 of the support members 25, 25 is connected to the lateral members 27, 27. It is pivotally connected so that it can swing around a horizontal axis perpendicular to the traveling rail 51 (so that it can tilt forward and backward). As for the structure of the pivot portions 29 and 29 with the lateral members 27 and 27 of the transported object support base 30, an annular member loosely fitted to the lateral member 27 having a circular cross section is fixed to the front and back surfaces of the transported object support base 30. Is. With such a structure, when the front and rear lifting members 15 and 15 are lifted at the same height and at the same speed, the conveyed product support base 30 is kept horizontal, and only one of the front and rear lifting members 15 and 15 is lifted or lowered. Alternatively, when the front and rear elevating members 15 and 15 are moved up and down in opposite directions, the conveyed product support base 30 can be tilted back and forth.

  Although illustration is omitted, the transport object support 30 is provided with appropriate fixing means for fixing the transport object. The fixing means is formed in an appropriate shape in accordance with the shape of the transported object. In addition to changing the support base itself to a support base having a dedicated fixing means according to the transported object, other types of transported objects on the same support base. There are other appropriate methods such as providing an adapter for fixing and supporting the conveyed product on the support base, or forming a large number of holes for fixing bolts on the support base. Alternatively, as described above, it is also possible to form the horizontal member 27 itself at the lower end of the support member 25 on a support base that matches the conveyed product, and attach this to the lower end of the vertical member 26 so that it can be tilted back and forth. In addition, about the conveyed product support stand 30, it is not restricted to the form of a rectangular frame like illustration, For example, according to the kind and shape of a conveyed product, or the work content of a processing process, a mesh-shaped member, a plate-shaped member, a rod-shaped member, or Appropriate forms such as netting can be selectively adopted.

  Next, the operation of the transport apparatus having the above configuration will be described. The transport apparatus 1 according to the present invention is installed in an appropriate process of a production line such as an automobile, for example, and the traveling rail 51 and the guide rail 53 are continuously parallel from the start point to the end point of the transport path for transporting the transported object 60. And the traveling frame 2 travels along that. For example, at the starting point of the transport path, the support members 25 and 25 are lowered to the floor surface or an appropriate height by the lift drive devices 35 and 35, and the transport object 60 is supported and fixed on the transport object support base 30. As a result, the conveyed product 60 is lifted horizontally to an appropriate height to maintain the level, and is moved in the horizontal direction by the traveling devices 6 and 6. For example, when the position sensor (not shown) is actuated upon reaching the treatment tank 54 in the electrolytic coating treatment process or before and after the treatment process, the traveling devices 6 and 6 are stopped and supported by the lift drive devices 35 and 35. The members 15 and 15 are lowered, and the conveyed product 60 is immersed in the processing liquid in the processing tank 54. When air stays inside due to the shape of the conveyed product 60, for example, the lifting / lowering speed of the elevating members 15 and 15 operated by the front and rear elevating drive devices 35 and 35 is changed, and the conveyed object support 30 is inclined forward and backward. The transported object 60 is swung back and forth. Then, after the processing step is finished, the lifting drive devices 35 and 35 are operated to pull up the conveyed product 60 from the processing tank 54, and the traveling device 6 is operated to convey the conveyed product 60 to the next processing tank or the like.

  Even if the inertial force, the viscous resistance force of the processing liquid, the buoyancy of air staying in the transported object 60, or the like acts on the transported object during the transporting, raising / lowering or swinging operation, the support members 25, 25 The pivot shafts 18 and 18 pivoting on the upper end restrain other than swinging around the pivot shaft. Further, the stoppers 20, 20 provided in the vicinity of the pivots 18, 18 of the elevating members 15, 15 restrict the front stopper 20 from swinging forward of the front support member 25, and the rear stopper 20 is behind the rear support member 25. In order to restrict the rocking of the support member 25, the rocking range in the front-rear direction of the support members 25, 25 can be limited. Therefore, it is possible to avoid collisions with the walls and equipment around the transfer path or the side wall 55 of the processing tank 54, and the transfer, lifting and swinging operations can be performed safely and quickly.

  FIGS. 6 to 8 regulate that one vertical member 26 of the front and rear support members 25 and 25 swings in the direction of the other vertical member 26 as the height difference between the front and rear elevating members 15 and 15 increases. It is explanatory drawing of operation | movement and an effect | action of the substantially V-shaped link mechanism comprised by the said front link 21 and the rear link 22 which are the vertical member rocking | fluctuation control means. 6 shows that the height difference between the front and rear elevating members 15 and 15 is gradually increased in the direction of lowering the height of the front elevating member 15 relative to the height of the rear elevating member 15, The connection parts 21b and 22b with the rear link 22 show the state which approached and contacted the vertical member 26 of the rear support member 25 which is a support member in a high position. FIG. 7 shows a state where the height difference is further increased and the forward tilt of the conveyed product 60 is substantially maximized. Similarly, in FIG. 8, the height difference between the front and rear elevating members 15, 15 is gradually increased in the direction of lowering the height of the rear elevating member 15 with respect to the height of the front elevating member 15. And the connecting portions 21b and 22b between the front link and the rear link 22 approach the vertical member 26 of the front support member 25, which is a support member at a high position, and then increase the difference in height to further increase the height difference of the conveyed product 60. A state in which the rearward inclination is substantially maximized is shown.

  For example, from the state where the connecting portions 21b, 22b of the front link 21 and the rear link 22 are in contact with the vertical member 26 of the rear support member 25 as shown in FIG. 6, the front and rear elevating members 15, 15 as shown in FIG. When the height difference of the rear support member 25 is increased, the front link 21 is interposed between the vertical member 26 of the front support member 25 and the vertical member 26 of the rear support member 25 and is stretched. The member 26 is restricted from swinging in the direction of the longitudinal member 26 of the front support member 25 at a low position. Similarly, when the height difference between the front and rear elevating members 15 and 15 is increased in the direction of lowering the height of the rear elevating member 15 with respect to the height of the front elevating member 15, the rear link 22 becomes the front support member. The vertical member 26 of the rear support member 25 is interposed between the vertical member 26 of the rear support member 25 and stretched in the direction of the vertical member 26 of the rear support member 25 at the lower position. Oscillation is restricted (see FIG. 8 in which the rearward inclination of the conveyed product 60 is substantially maximized).

  As a result, as shown in the description of FIG. 13 which is an example of the configuration of the invention of the prior application, the form of the link of the link mechanism configured by the transport object support base 30 for supporting the transport object 60 and the front and rear support members 25, 25. However, since the jumping phenomenon that changes suddenly when approaching the dead center of the link mechanism can be eliminated, the forward and backward inclination of the transported object 60 can be increased as shown in FIGS. it can. For example, stable operation is possible even if the maximum inclination angle of the conveyed product 60 forward and backward is about 70 ° with respect to the processing liquid surface, and thus the maximum inclination angle of the conveyed product 60 is increased. Therefore, it is possible to substantially eliminate the accumulation of air in the conveyed product 60, and to greatly improve the drainability when entering and exiting the processing liquid.

Moreover, since the maximum inclination angle of the conveyed product 60 can be enlarged, the carrying-in and carrying-out speed of the conveyed product 60 to the processing tank 54 can be increased, and productivity can be improved. Furthermore, the amount of protrusion of the conveyed product 60 from the vertical column at the maximum inclination is significantly reduced, for example, as shown in FIG. 7D (for comparison, see also B and C in FIG. 13). Therefore, since the amount of movement of the transported object 60 in the front-rear direction when the transported object 60 is in the inclined posture is small, the overall length of the processing tank 54 can be shortened. Furthermore, the position change amount of the center of gravity G accompanying the change in posture of the conveyed product 60 from the horizontal posture to the inclined posture is small (see, for example, FIG. 2, FIG. 6, FIG. 7; see FIG. 13 for comparison). When lifting the transported object 60 from the horizontal state to the maximum tilted state, returning the transported object 60 from the maximum tilted state to the horizontal state, or maintaining the maximum height difference and simultaneously raising the front and rear support members at most Since the load such as the conveyed product can be shared by both the lifting drive devices 35 and 35 in the operation, the capacity of the lifting drive devices 35 and 35 can be reduced. Further, since the component force in the vertical direction exerted on the elevating members 15 and 15 by the front link 21 and the rear link 22 that abut against the longitudinal members 26 and 26 of the front and rear support members 25 and 25 is small, the component force is used for elevating. Since the load on the driving devices 35 and 35 is hardly applied and the influence of the component force is small, the operation of the elevating members 15 and 15 becomes smooth.

  In the above description, it is restricted that one vertical member 26 of the front and rear support members 25 and 25 swings in the direction of the other vertical member 26 as the height difference between the front and rear lifting members 15 and 15 increases. Although the case where the vertical member swing restricting means is the substantially V-shaped link mechanism has been described, the vertical member swing restricting means is not limited to such a configuration. For example, a configuration in which a linear actuator such as an air cylinder is provided so as to suppress the narrowing of the interval between the vertical members, or a configuration in which an actuator that suppresses the swinging of the pivots 18 and 18 is provided can be adopted. .

  FIG. 9 is a front partial cross-sectional view (partial cross-sectional view seen from the rear) showing another embodiment of the lifting drive device and the support member of the transport device according to the present invention. FIG. 9 is a partial view showing an elevating drive device 35a for elevating and lowering an elevating member 15a attached to the vertical column 4 so as to be elevable. The lift driving device 35a of the transport device 1a shown in this figure includes screw rods 40 installed on each of the pair of front and rear vertical columns 4 and 4 of the traveling frame 2 in parallel with the vertical columns 4 respectively. Yes. Each screw rod 40 is supported by a support bracket 11 projecting laterally from the reinforcing member 5 at the upper end of each traveling frame 2 via a bearing 41 so that the lower end thereof is a base of the traveling frame 1. 3 is connected to and supported by a screw rod rotation drive device 44 installed in the machine 3. The threaded rod 40 is formed with a threaded portion 42 over substantially the entire length, and the threaded portion 42 is fitted with a nut member 43 that is screwed thereto. The nut member 43 is connected to an elevating member 15a supported so as to be movable up and down along the vertical support column 4, and when the screw rod 40 is rotated by the screw rod rotation driving device 44, the nut member 43 is moved up and down. 15a moves up and down.

  In the transport device 1a, the vertical struts 4 and 4 and the lift members 15a and 15a of the lift drive device 35a have the same structure as the vertical struts 4 and 4 and the lift members 15 and 15 of the transport device 1, but the lift members 15a has a connecting member (not shown) connected to the nut member 43 on the side surface of the frame member 16a on the screw rod 40 side, and does not include the chain locking portions 38 and 38a in the above-described embodiment. Further, the support member 25a is formed by dividing the vertical member 26a and the horizontal member 27a extending horizontally from the lower end thereof, and detachably attaching the base end of the horizontal member 27a to the lower end of the vertical member 26a. is doing. The transport device 1a has the same structure as the transport device 1 except for the lifting drive device 35a and the support member 25a, and has the same effects as the description of the transport device 1. The support member 25a can be replaced with the support member 25 of the transport device 1.

  In addition, as a raising / lowering drive device of a raising / lowering member, the endless traction mechanism comprised by the rope or chain demonstrated above and the drive device which drives it, a screw rod, a nut member screwed together, and a screw rod A mechanism composed of a rotary drive device is optimal, but various other mechanisms may be used. Although not shown, for example, a hydraulic or pneumatically operated cylinder device is used, one end of which is connected to the traveling frame side and the other end is connected to the lifting member side supported by the vertical support of the traveling frame so as to be lifted and lowered. A mechanism for raising and lowering the elevating member by extending or contracting, or a mechanism for attaching a rack along the vertical column, attaching a pinion meshing with the rack to the elevating member, and rotating the pinion by a motor to elevate and the like, etc. Various mechanisms can be selectively employed, including those not listed.

Embodiment 2. FIG.
10-12 is explanatory drawing which shows the conveying apparatus based on Embodiment 2 of this invention, FIG. 10 is a schematic diagram which shows the right side of the structural example of a partition, FIG. 11 is X1-X1 cross section of FIG. FIG. 12 and FIG. 12 are X2-X2 cross-sectional views of FIG. 10 to 12, the same reference numerals as those in FIGS. 1 to 3 of the first embodiment denote the same or corresponding parts, and the partition wall 58 and the spray nozzles 46 to 48 are different from those in FIGS. 1 to 3. The only difference is the provision.

  The processing liquid is ejected from the spray nozzles 45 and 45 in FIG. 11, and the processing liquid in the processing tank 54 for performing an electrolytic coating process or the like is circulated by the ejected processing liquid, and electrolysis of the conveyed product (object to be processed) 60 is performed. The processing efficiency and quality of painting etc. improve. Alternatively, water is ejected from the spray nozzles 45, 45, and the water in the treatment tank 54 in which the water washing treatment is performed with the water is circulated, so that the washing efficiency of the transported object (object to be treated) 60 is improved. Further, from the spray nozzles 46 to 48 of FIG. 12, a treatment liquid or water is sprayed according to the treatment process, and the electrolytic coating treatment or the pre- and post-treatment or washing with water is performed on the transported object (object to be treated) 60.

  The upper part of the processing tank 54 disposed at the lowering position of the conveyed product at a predetermined position in the traveling direction (see arrow A in FIG. 10) and the conveying space S before and after the traveling direction on the upper side are separated by a partition wall 58. The partition wall 58 is vertically covered with the support members 25 and 25 that support the transported object (processed object) 60 even when the transported object (processed object) 60 moves in the up-down direction or the traveling direction. In order not to interfere with the members 26, 26, a slit SL extending in the traveling direction and allowing the vertical members 26, 26 to pass therethrough is formed.

  For example, the left wall of the partition wall 58 is separated into an upper left wall 58a and a lower left wall 58b at the lower part thereof, and the left and right directions of the upper left wall 58a and the lower left wall 58b (horizontal direction orthogonal to the traveling direction). ) Forms the slit SL. Since the gap E is set to be slightly larger than the length in the left-right direction of the vertical members 26, 26, the partition wall 58 and the vertical members 26, 26 do not interfere even when the vertical members 26, 26 are moved up and down ( For example, see FIGS. 11 and 12.) Further, since the slit SL extends in the traveling direction, the partition wall 58 and the longitudinal members 26 and 26 do not interfere with each other even when the longitudinal members 26 and 26 travel. Further, since the slit SL is formed below the partition wall 58, the partition wall 58 and the lifting members 15 and 15 do not interfere with each other even when the lifting members 15 and 15 are lowered (see FIG. 11). The partition wall 58 and the transverse member 27.27 of the support members 25 and 25 do not interfere with each other even at the raised position of the members 15 and 15 (see FIG. 12).

  In this way, the main body side (travel frame 2) of the vertical support columns 4, 4, lift members 15, 15, travel rail 51 and guide rail 53, travel drive motors 9, 9 and lift drive devices 35, 35 of the transport device 1. Etc.), the horizontal members 27 and 27 of the support members 25 and 25 of the transfer apparatus 1, the processing tank 54 including the transfer object support 30 and the transfer object (object to be processed) 60, and the transfer space S. It is isolated by a partition wall 58. Here, an elastic seal 59 (see FIG. 12) or an air curtain or the like may be provided in the slit SL. If the elastic seal 59 or an air curtain is provided, the separation performance between the main body side of the transfer apparatus 1 and the processing tank 54 and the transfer space S by the partition wall 58 is further improved.

  By providing the partition wall 58 with such a configuration, the treatment liquid or water in the treatment tank 54 scatters, the treatment liquid or water scatters from the spray nozzles 45 to 48, and the evaporated treatment liquid or water. An adverse effect such as a failure due to corrosion of the machine part on the main body side of the transport device 1 or a failure due to poor conduction of the electric system on the main body side or a decrease in life is suppressed. Further, mixing of dust and oil generated from the movable part on the main body side of the transfer apparatus 1 into the processing liquid and adhesion to the surface of the transfer object (object to be processed) 60 are suppressed. Therefore, it is possible to improve the reliability and practicality of the transport apparatus 1 and the quality of the transported object (processed object).

It is a perspective view which shows the conveying apparatus which concerns on Embodiment 1 of this invention, and has shown the state which descended the conveyed product to the processing tank and sunk the back below. It is a right side fragmentary sectional view in the state where the conveyance thing of Drawing 1 was kept horizontally, and a dashed-two dotted line has shown the state where a conveyance thing was lowered in a processing tank. It is a back surface partial sectional view of the state where the conveyed product in Drawing 2 was lowered in a processing tub, and the dashed-two dotted line has shown the state of the supporting member etc. at the time of raising the conveyed product. FIG. 2 is a partial right side sectional view in the state of FIG. 1. FIG. 5 is a right side partial cross-sectional view showing a state where the heights of the front and rear lifting members are reversed from the state of FIG. 4. It is explanatory drawing of operation | movement and an effect | action of a substantially V-shaped link mechanism which is a vertical member rocking | fluctuation control means. It is explanatory drawing of operation | movement and an effect | action of a substantially V-shaped link mechanism which is a vertical member rocking | fluctuation control means. It is explanatory drawing of operation | movement and an effect | action of a substantially V-shaped link mechanism which is a vertical member rocking | fluctuation control means. It is a front fragmentary sectional view which shows another embodiment of the raising / lowering drive device and support member of the conveying apparatus which concern on this invention. It is a schematic diagram which shows the structural example of the partition in the conveying apparatus which concerns on Embodiment 2 of this invention. It is X1-X1 sectional drawing of FIG. It is X2-X2 sectional drawing of FIG. It is a right side fragmentary sectional view for explanation of composition outline and jump phenomenon of a prior invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a Conveying device 2 Traveling frame 3 Base 4 Vertical support 5 Reinforcement member 6 Traveling device 6a Vertical support shaft 7 Drive wheel 9 Traveling drive motor 10 Guide part 11 Support bracket 12 Vertical roller 13 Horizontal roller 15, 15a 16a frame member 17 pivot mounting portion 18 pivot 19 roller 20 stopper 21 front link 21a upper end 21b lower end (connecting portion)
22 Rear link 22a Upper end 22b Lower end (connection part)
23, 24 Contact member 25, 25a Support member 26, 26a Vertical member 27, 27a Horizontal member 29 Pivot 30 Transported object support 35, 35a Lifting drive device 36, 36a Sprocket 37 Chain 38, 38a Locking portion 39 Lifting drive Motor 40 Threaded rod 41 Bearing 42 Threaded portion 43 Nut member 44 Threaded rod rotation drive device 45, 46, 47, 48 Spray nozzle 50 Floor surface (conveyance path floor surface)
51 Traveling rail 52 Ceiling (upper support frame)
53 Guide rail 54 Treatment tank 55 Side wall 56 Feeding element 57 Feeding line 58 Bulkhead 58a Upper left wall 58b Lower left wall 59 Elastic seal 60 Conveyed material (object to be treated)
A Travel direction S Transport space SL Slit

Claims (4)

A traveling frame having a pair of vertical columns that are supported by a traveling rail and a guide rail that is parallel to the traveling rail in a vertical direction and that is separated in the front-rear direction along the traveling direction;
Front and rear elevating members that are supported by each of the pair of vertical columns so as to be movable in the vertical direction along the vertical columns, and are driven separately or simultaneously;
A front vertical member whose upper end is coupled to be swingable about a horizontal axis orthogonal to the front elevating member and the rail, and a front extending in a horizontal direction orthogonal to the rail provided at the lower end of the front vertical member A front support member having a transverse member;
A rear vertical member having an upper end coupled to the rear elevating member and the horizontal axis so as to be swingable; and a rear horizontal member provided at a lower end of the rear vertical member and extending in the same direction as the front horizontal member. A rear support member having,
A carrier support base pivotally connected between the front lateral member and the rear lateral member;
A conveying device comprising a vertical member swing restricting means for restricting the swing of the one vertical member in a direction approaching the other vertical member as the height difference between the front and rear elevating members increases.   The vertical member swing restricting means includes a front link having an upper end coupled to the rear surface of the front vertical member or the front elevating member and the horizontal axis so as to be swingable about the horizontal axis, and a lower end of the front link and the horizontal axis. The height of the front and rear elevating members includes a lower end coupled to be swingable, and a front link of the rear vertical member or the rear elevating member and a rear link having an upper end coupled to be swingable about the horizontal axis. A link mechanism that is substantially V-shaped when the height is the same, and as the height difference between the front and rear elevating members increases, the connecting portion between the front link and the rear link is By approaching the vertical member by approaching to the higher position, the lower link of the link mechanism is interposed between the front and rear vertical members and stretches, and the higher vertical member is located at the higher position. Swings toward the other vertical member Conveying apparatus according to claim 1, wherein restricts the Rukoto.   A front stopper provided on the front elevating member for restricting forward swing of the front vertical member and a rear stopper provided on the rear elevating member for restricting rearward swing of the rear vertical member The transport apparatus according to claim 1, further comprising a stopper. A partition that covers the upper side of the processing tank disposed at the lowering position of the conveyed product supported by the conveyed object support base at a predetermined position in the traveling direction of the traveling frame and the conveying space before and after the traveling direction on the upper side. A slit extending in the traveling direction and passing through the longitudinal member so that the transported object does not interfere with the longitudinal member of the support member even if the conveyed product moves in the ascending / descending direction or traveling direction. The transfer apparatus according to claim 1, wherein the transfer apparatus is formed and the main body side of the traveling frame and the processing tank and the transfer space are separated from each other by the partition wall.

Images