JP5470307B2 - Conveyor equipment for work lines - Google Patents

Description

  The present invention is for a work line in which a worker conveyor driven in synchronization with the workpiece transfer conveyor is arranged side by side on the side of a movement path of a workpiece supported and transferred by the workpiece transfer conveyor. Concerning conveyor equipment.

  In a work line conveyor facility, when a worker performs component mounting work on a work that is transported at a constant speed on the work line, for example, an automobile body, the width is sufficiently wider than the lateral width on both sides of the work By using the workpiece transfer conveyor and the operator gets on the workpiece transfer conveyor on the side of the workpiece, there is no relative speed between the workpiece and the operator, so the operation can be performed safely and easily. However, when working on a relatively high part of the workpiece, for example, it is difficult for the worker who stands directly on the horizontal moving surface on the workpiece transfer conveyor. Therefore, an operator's conveyor that is driven in synchronism with the workpiece conveying conveyor is arranged side by side on the upper side of the workpiece conveying conveyor on the lateral side of the workpiece moving path so as to increase the level at which the operator stands. However, as described in Patent Document 1, a worker conveyor that can be incorporated in this type of conventional conveyor equipment for work lines is provided exclusively for this worker conveyor. It is driven by a motor and is configured to drive the operator conveyor in synchronization with the workpiece conveyor by means of a mutual interlock between the control panel and the workpiece conveyor.

JP 2007-22663 A

  That is, the conventional operator conveyor is controlled so that it receives an operation signal from the control panel of the workpiece conveying conveyor and is operated at the same speed as the workpiece conveying conveyor, and the control system becomes complicated. Not only does it save energy because it requires a dedicated power source. Further, since the inertia weight is different from that of the workpiece transfer conveyor, the stop / start cannot be completely synchronized.

  The present invention proposes a work line conveyor facility capable of solving the above-described conventional problems, and the work line conveyor device according to the present invention described in claim 1 will be described later. In order to facilitate understanding of the relationship with the embodiment, when the reference numerals used in the description of the embodiment are shown in parentheses, the workpiece provided along the workpiece transfer path (work line (L)) Equipped with a transfer conveyor (transfer carriage (1)) and an operator conveyor (9) arranged in parallel in a fixed section (specific work section (D)) in the work transfer route (work line (L)) The workpiece conveyor (conveyor carriage (1)) has a working floor (7) projecting laterally from the supporting workpiece (W), and the operator conveyor (9) Supported on the ground side so that it overlaps the upper side of the work floor (7) of the conveyor (transport cart (1)) The worker conveyor (9) has friction driven wheels (23a, 23b) that are frictionally driven in contact with the work floor (7) of the workpiece transfer conveyor (transfer carriage (1)). The friction driven wheels (23a, 23b) that are pivotally supported and the endless hanging rotating body (conveyor belt (17)) that forms the worker boarding surface (17a) of the conveyor (9) for the worker are the worker. The boarding surface (17a) is interlocked so as to move at the same speed as the work floor surface (7).

  When carrying out the present invention, specifically, as described in claim 2, the operator conveyor (9) is stretched laterally from the workpiece transfer conveyor (transfer carriage (1)). The outer side to be ejected is pivotally supported around a horizontal support shaft (32) parallel to the length direction of the operator conveyor, and the workpiece conveyor ( A plurality of supporting wheels (23a, 23b, 27) that are driven and rotated against the work floor (7) of the transport carriage (1)) are supported at appropriate intervals in the length direction of the conveyor for the worker. In addition, at least one of the plurality of supporting wheels can be used as the friction driven wheel (23a, 23b).

  The workpiece transfer conveyor may be any type of conveyor such as a slat conveyor, but when the workpiece transfer conveyor is constituted by a plurality of transfer carriages (1) that run in a tandem state, As described in claim 3, the friction driven wheels (23a, 23b) of the operator conveyor (9) are a pair of front and rear at intervals that do not coincide with the total length in the moving direction of the one carriage (1). A pair of front and rear rotating bodies (16a) for supporting the endless hanging rotating body (conveyor belt (17)) of the conveyor (9) is supported by the pair of front and rear friction driven wheels (23a, 23b). , 16b) are interlockedly connected to each other, and in the middle position between the pair of front and rear friction driven wheels (23a, 23b), contact with the work floor (7) on the transport carriage (1) and follow and rotate. At least one supporting wheel (27) can be pivotally supported.

  According to the structure of this invention of Claim 1, in the fixed area in a workpiece conveyance path | route, ie, the fixed area in which the operator's conveyor was provided so that it might overlap with the upper side of the work floor of a workpiece conveyance conveyor. The operator boarding the work floor of the work conveyor and the operator floor of the worker conveyor by transferring from the work floor of the work conveyor to the worker boarding surface of the worker conveyor. The level at which the worker stands is increased by the level difference between the surface and the surface. Since the worker boarding surface of the worker conveyor moves at the same speed as the work floor surface of the workpiece conveyor, the operator boarding of the worker conveyor from the work floor surface of the workpiece conveyor is performed. Not only can the transfer to the surface be performed safely and easily, but there is no relative speed difference between the work supported and transported by the work transport conveyor and the worker on the worker conveyor. The upper worker can safely and easily perform the required work from a high eye level with respect to the workpiece by the level difference as compared to when standing on the work floor of the workpiece transfer conveyor. In addition, according to the configuration of the present invention, a dedicated power source for driving the operator conveyor is unnecessary, and no control device for synchronously driving the workpiece conveyor and the operator conveyor is required. Significant cost reduction and energy saving effect can be expected.

  Although the said operator's conveyor may be fixed to the base frame on the ground side so that it may be located horizontally above the work floor of a workpiece conveyance conveyor, according to the structure of Claim 2, Lift the inner side of the conveyor for the worker by using a simple weighting means such as to bring the worker conveyor upright at the laterally outer position of the workpiece conveyor, or switch to the lying position if possible. This is convenient when it is necessary to perform maintenance and inspection work on the workpiece transfer conveyor and the operator conveyor. Of course, the worker conveyor is supported so as to be movable in and out horizontally between an advancing position that overlaps the work floor of the workpiece transfer conveyor and a retreat position positioned laterally outward of the workpiece transfer conveyor. You can also.

  Furthermore, when the workpiece conveying conveyor is constituted by a plurality of workpiece supporting and conveying carts that run in a tandem state, the workpiece supporting and conveying cart adjacent to the front and rear by adopting the configuration according to claim 3. Even in the situation where a gap or a concave groove is formed between them, either one of the pair of front and rear friction driven wheels on the conveyor side of the worker is always in contact with the work floor of the work support carriage. Since it rotates, the synchronous drive of the operator's conveyor (endless hanging rotation body) can be performed reliably. Of course, at least two of the pair of front and rear friction driven wheels and the intermediate support wheels are on the work floor of the work support transport carriage, and the operator conveyor is stably supported. There is no fear that one of the friction driven wheels falls into a gap or a concave groove between the workpiece supporting and conveying carts adjacent to each other in the front and rear, and shocks the operator.

FIG. 1 is a partially cutaway plan view for explaining a workpiece conveyance path using a workpiece support conveyance carriage. FIG. 2 is a front view showing a certain section in which an operator conveyor is provided. FIG. 3 is a plan view showing a conveyor for workers on one side. FIG. 4 is an inner side view showing the operator conveyor on one side. FIG. 5 is a longitudinal side view showing details of the end portion on the take-up side of the conveyor for the worker. FIG. 6 is a cross-sectional plan view showing details of the end portion on the take-up side of the operator conveyor. FIG. 7 is a longitudinal rear view of the one-side worker conveyor at the take-up side end position. FIG. 8 is a longitudinal rear view of the worker conveyor on one side at the installation position.

  1 and 2, reference numeral 1 denotes a transport carriage, which is a wheel 3 that can roll on a pair of left and right support guide rails 2 laid on the floor surface, and a positioning vehicle laid on the floor surface. A positioning guide roller 5 fitted to the guide rail 4 is provided at the bottom, and a work supporting means 6 for supporting the work W is provided at the center of the upper surface. Is a flat work floor 7. The workpiece support means 6 may be a position-fixed support stand or a lifter type whose support height can be adjusted, or the position of the work support means 6 can be adjusted in the front-rear direction with respect to the transfer carriage 1 and relative to the transfer carriage 1. Any configuration may be used, such as a workpiece supporting slave cart that can be freely moved in and out in the front-rear direction.

  The transport cart 1 is driven by a pusher of a ground-side propulsion chain conveyor, is driven by a tow-driven self-propelled cart having a low floor structure that can enter the lower side of the transport cart 1, or As described above, the travel drive of the friction drive devices 8A to 8D composed of the friction drive wheel 8a pressed against one of the friction drive surfaces 1a, 1b parallel to the travel direction and the backup roller 8b pressed against the other As shown in FIG. 1, a linear work line in which each transport carriage 1 travels in tandem in the front-rear abutting state in the travel route formed by the ground-side guide rails 2 and 4, as shown in FIG. 1. L is formed. In front of this work line L, a workpiece loading station S for transferring the workpiece W onto the workpiece supporting means 6 of the conveying cart 1 is set, and the conveying cart 1 on which the workpiece W is loaded at the workpiece loading station S. Are sequentially fed into the work line L by the feeding friction drive device 8A. In the work line L, each carriage 1 travels at a constant speed in a front-rear abutting state by a constant speed feeding friction drive device 8B at the entrance and a constant speed delivery friction drive device 8C at the exit. . The carriage 1 delivered from the exit of the work line L by the constant speed delivery friction drive device 8C is taken over by the high speed delivery friction drive device 8D and retreats at a high speed.

  Thus, in the work line L, the work loaded on each transport carriage 1 in a state where the worker is on the work floor 7 around the work W of each transport carriage 1. The required work for W can be performed in a state where the transport carriage 1 is traveling at a constant speed, but the work for the work W on the work line L is, for example, the case where the work W is an automobile body. As in the case of parts mounting work for each window height of the car body, the work standing on the work floor 7 of the transport carriage 1 includes work that is difficult to work because the work target location is high. When the specific work section D where the work target location for the work W is high is incorporated in the work line L, as shown in FIGS. 1 and 2, an operator conveyor 9 is disposed in the specific work section D. The

  The length of the specific work section D shown in the figure is almost the same as the total length of one transport cart 1, and therefore two workers having the same length as the total length of one transport cart 1. The conveyor 9 sandwiches the movement path of the work W in the work line L from both the left and right sides, that is, overlaps the upper side of the work floor 7 projecting from the left and right sides of the work W of the transport carriage 1. It is installed side by side. Since the two worker conveyors 9 have a symmetrical structure, the structure of the worker conveyor 9 on one side will be described below with reference to FIGS.

  The operator conveyor 9 is composed of a belt conveyor main body 10 having a required length, and slope members 11a and 11b for worker ascending and descending protruding at both ends in the length direction. The belt conveyor body 10 includes a frame 15 formed by connecting and integrating a pair of left and right side frame members 12a and 12b with connecting plate members 13 on both ends and connecting rod-like members 14 positioned at a plurality of positions in the middle in the longitudinal direction. It comprises a pair of front and rear rotating bodies 16a and 16b that are pivotally supported in positions near both ends, and a conveyor belt (endless hanging rotating body) 17 stretched between the rotating bodies 16a and 16b. The slope members 11a and 11b are attached to both ends (both end connecting plate members 13) of the frame 15, and cover plates 18a and 18b that cover both end portions of the upper forward path portion of the conveyor belt 17 from the upper ends of the slope members 11a and 11b. Are laid on both upper sides of the frame 15.

  More specifically, the upper traveling path portion that forms the worker boarding surface 17a of the conveyor belt 17 is supported by a shaft 15 that is pivotally supported on the frame 15 at positions at an appropriate interval in the length direction of the upper traveling path portion. It is supported by a roller 19 and a stationary support plate 20 installed on the frame 15 between the support rollers 19 and between the support rollers 19 at both ends and the rotating bodies 16a and 16b at both ends. The side retrograde path portion is supported by support rollers 21 that are pivotally supported on the frame 15 at positions at an appropriate interval in the length direction of the lower retrograde path portion. The rotary shafts 22a and 22b that cross the frame 15 are supported at positions adjacent to the lower side of the rotary bodies 16a and 16b on both ends of the conveyor belt 17, and one end of each of the rotary shafts 22a and 22b, Friction driven wheels 23 a and 23 b are attached to the outer side of the frame 15 at the end on the inner side adjacent to the movement path of the workpiece W of the worker conveyor 9.

  Each of the friction driven wheels 23a and 23b has an outer diameter in which a part of the periphery of the friction driven wheels 23a and 23b protrudes downward from the frame 15, and the other ends of the rotary shafts 22a and 22b to which the friction driven wheels 23a and 23b are attached, that is, The driving device in which the end of the outer side opposite to the inner side adjacent to the moving path of the workpiece W of the conveyor 9 for the worker and the rotary bodies 16a and 16b adjacent to the rotary shafts 22a and 22b are attached. The ends on the same side of the shafts 24a and 24b are interlocked and connected by transmission means 25a and 25b that are reversely linked to each other so that the peripheral speed of the friction drive wheels 23a and 23b and the moving speed of the conveyor belt 17 are equal. . Each transmission means 25a, 25b in the illustrated example is composed of a pair of spur gears 26a, 26b which are attached to the ends of the rotary shafts 22a, 22b and the ends of the drive shafts 24a, 24b and mesh with each other. Further, a plurality of supporting wheels 27 are provided between the pair of front and rear friction driven wheels 23 a and 23 b and are supported on the outside of the inner side of the frame 15 at a plurality of locations in the length direction of the operator conveyor 9. ing.

  The worker conveyor 9 configured as described above has two outer sides extending outward from the left and right sides of the transport carriage 1 traveling on the work line L in the longitudinal direction 2 of the worker conveyor 9. It is supported on the ground side floor by the supporting means 28a, 28b at the location. Each support means 28a, 28b has the same structure and is adjacent to the inside of the pair of front and rear bearing members 29a, 29b fixedly projecting on the outer side of the frame 15, and the pair of front and rear bearing members 29a, 29b. In addition, a pair of front and rear support members 31a and 31b protruding from the substrate 30 installed on the ground side floor surface, and the bearing members 29a and 29b and the support members 31a and 31b are arranged in the length direction of the operator conveyor 9. And a horizontal support shaft 32 that supports the operator's conveyor 9 so as to swing up and down freely. Of course, the horizontal support shafts 32 of the pair of front and rear support means 28a and 28b are located concentrically with each other. The frame 15 and the pair of front and rear bearing members 29a and 29b of the support means 28a and 28b are connected to each other by reinforcing shaft-like members 33a and 33b that penetrate and cross both of them in the lateral width direction of the operator conveyor 9. Has been.

  Further, the conveyor belt 17 of the belt conveyor body 10 needs take-up means. In this illustrated example, of the pair of front and rear rotating bodies 16a and 16b around which the conveyor belt 17 is stretched, A pair of left and right take-up means 34 provided on the upper rotating body 16b in the traveling direction of the carriage 1 is used. The pair of left and right take-up means 34 have a symmetrical structure, and as shown in FIGS. 5 to 7, a fixed base 35 attached to the outside of the side frame members 12a and 12b of the frame 15, and these fixed parts. A movable plate 38 attached to the outside of the base 35 by a long hole 36 and a fastening bolt 37 so that the position of the belt conveyor body 10 can be adjusted in the length direction, and an adjustment for moving the movable plate 38 in the direction of tension in the conveyor belt. Both ends of the drive shaft 24b to which a rotating body 16b is attached to bearings 40 and 41, which are constituted by bolts 39 and attached to the outside of the pair of left and right movable plates 38, and the rotary shaft 22b parallel to the drive shaft 24b. Both ends are supported. Of course, the side frame members 12a and 12b through which both ends of the drive shaft 24b and the rotary shaft 22b penetrate and the through holes 42 and 43 of the fixed base 35 are provided so that the position of the movable plate 38 can be adjusted. The side frame members 12a and 12b through which both ends of the drive shaft 24b penetrate, the through hole 42 of the fixed base 35, and the through hole 38a of the movable plate 38 are The rotating body 16b disposed inside the conveyor belt 17 is formed in an L shape with an open upper end so that the rotating body 16b can be dropped between the pair of left and right side frame members 12a and 12b together with the drive shaft 24b.

  According to the pair of left and right take-up means 34 having the above-described configuration, the adjusting bolt 39 is screwed while the fastening bolt 37 is loosened, and the movable plate 38 is pressed and moved in the conveyor belt tension direction via the drive shaft 24b. Thus, the position of the rotary body 16b can be moved in the direction of tension of the conveyor belt, so that the conveyor belt 17 stretched between the pair of front and rear rotary bodies 16a and 16b can be tensioned appropriately. After adjusting the tension of the conveyor belt 17, the movable bolt 38 is fixed to the fixed base 35 by tightening the fastening bolt 37. The pair of left and right take-up means 34 is characterized in that when the position of the rotary body 16b is adjusted for adjusting the tension of the conveyor belt 17, the drive shaft 24b of the rotary body 16b is interlocked and connected via the transmission means 25b. The rotary shaft 22b of the friction driven wheel 23b is also adjusted in position integrally with the drive shaft 24b, and is configured so as not to affect the transmission means 25b between the two shafts.

  In the illustrated example, the conveyor belt 17 is provided with a protrusion 17b in the length direction of the conveyor belt 17 that is continuous over the entire length inside the center in the width direction, and is therefore adjacent to the inside of the conveyor belt 17. Grooves 44 in which the protrusions 17b are loosely fitted are formed in the rotating bodies 16a and 16b, the support roller 19, and the fixed support board 20. By fitting the grooves 44 with the protrusions 17b of the conveyor belt 17, the worker boarding surface 17a of the conveyor belt 17 is prevented from swinging in the lateral direction.

  The pair of left and right operator conveyors 9 configured as described above are turned inward around the horizontal support shaft 32 of the support means 28a and 28b, and a pair of front and rear friction driven wheels 23a and 23b on the inner side thereof. And the intermediate support wheels 27 abut on the work floor 7 projecting laterally from the work support means 6 of each transport carriage 1 traveling in the specific work section D in the work line L, The conveyor 9 for workers is configured to be supported horizontally. Accordingly, the pair of front and rear friction driven wheels 23a and 23b are driven by friction with the work floor 7 of the transport carriage 1 traveling in the specific work section D, and the rotation is transmitted from the rotary shafts 22a and 22b. Via the pair of spur gears 26a and 26b of the means 25a and 25b, the belt is transmitted to the drive shafts 24a and 24b of the pair of front and rear rotating bodies 16a and 16b that hang the conveyor belt 17, and by the rotation of these rotating bodies 16a and 16b. The conveyor belt 17 is rotated so that the worker boarding surface 17a formed by the upper traveling path portion thereof moves at the same speed in the same direction as the traveling direction of the transport carriage 1 traveling at a constant speed on the work line L. Will do.

  Further, the distance between the pair of front and rear friction driven wheels 23a, 23b is set so as not to coincide with the entire length of one transport carriage 1. In the illustrated example, the distance between the pair of front and rear friction driven wheels 23a, 23b is slightly longer than the total length of one transport carriage 1, but conversely, it may be configured to be slightly shorter. According to this configuration, both of the pair of front and rear friction driven wheels 23a and 23b are simultaneously formed between the transport carriage 1 even in a situation in which a gap or a concave groove is formed between the transport carriage 1 in a state of abutting forward and backward. Therefore, there is no inconvenience that the frictional driving force is interrupted even in an instant in conformity with the gap or the groove. Of course, even when one of the pair of front and rear friction driven wheels 23a, 23b matches the gap or the groove between the transport carriage 1, the work conveyor 9 as a whole has a pair of front and rear friction drive wheels 23a. , 23b and at least a plurality of support wheels 27 are stably supported, and there is no fear that the work conveyor 9 will rattle.

  Accordingly, standing on the work floor 7 of each transfer carriage 1 traveling at a constant speed on the work line L, the required work is performed on the workpiece W supported by the work support means 6 of each transfer carriage 1. When the transporting carriage 1 on board enters the specific work section D, the worker who is on the operator boarding surface 17a of the pair of left and right worker conveyors 9 disposed in the specific work section D Just as when moving and standing on the work floor 7 of the carriage 1 for transportation, it is possible to carry it without having to go along with the travel of the carriage 1 (movement of the workpiece W). Necessary work can be performed on the workpiece W on the carriage 1. Moreover, since the worker boarding surface 17a of the worker conveyor 9 is higher than the work floor surface 7 of the transport carriage 1, the worker standing on the worker boarding surface 17a of the worker conveyor 9 Can easily perform work on a high position of the workpiece W. In other words, the specific work section D is set as a section for performing work on a position where the work W is high. When the workpiece W moves away from the specific work section D together with the transport carriage 1, the worker standing on the worker boarding surface 17a of the worker conveyor 9 also moves from the worker boarding surface 17a to the lower side. What is necessary is just to transfer on the work floor 7 of the trolley | bogie 1 for conveyance.

  When maintenance work for the operator conveyor 9 or maintenance work for the transport carriage 1 located below the conveyor 9 for maintenance is required, it is shown in FIG. As indicated by phantom lines, the suspension rope 45 of the weighting means such as a chain block suspended on the ceiling side is opposite to the outer side (inner side) pivotally supported by the support means 28a, 28b of the operator conveyor 9. The operator's conveyor 9 can be pivoted up around the horizontal support shaft 32 of the support means 28a, 28b. In this case, a locking portion of the suspension rope 45 can be provided by an eyebolt or the like at an appropriate location of the side frame member 12a of the frame 15 constituting the inner side of the operator conveyor 9. Further, the support means 28a, 28b can be provided with a stopper for preventing further overturning when the operator conveyor 9 is opened by a predetermined angle of 90 degrees or more.

  Further, as indicated by phantom lines in FIG. 3, of the pair of front and rear rotating bodies 16 a and 16 b of the belt conveyor body 10, the drive shaft 24 a of the rotating body 16 a on the side where the take-up means 34 is not provided is moved. It is made to project to the side opposite to the side where the path is provided, and a motor 46 with a speed reducer can be linked to the projecting end of the drive shaft 24a via a coupling or the like as necessary. I can do it. In this case, the motor 46 with a speed reducer can be supported on the frame 15 (side frame member 12b) of the belt conveyor body 10 via an attachment frame. According to this structure, when the friction drive force by the friction driven wheels 23a and 23b with respect to the conveyor belt 17 is insufficient, for example, the number of workers standing on the worker boarding surface 17a of one worker conveyor 9 increases. In such a case, by attaching the motor 46 with a speed reducer and interlockingly connecting with the drive shaft 24a, the rotational force of the motor 46 with the speed reducer is added to the frictional driving force of the conveyor belt 17 to drive the conveyor belt 17 reliably. I can do it. In addition, the motor 46 with a speed reducer can always be attached, and a clutch can be interposed between the output shaft of the motor 46 with the speed reducer and the drive shaft 24a.

  The driving force for the operator conveyor 9 is determined by the frictional force between the friction driven wheels 23a and 23b and the work floor 7 of the conveying carriage 1, so that the conveying force is increased to increase the frictional force. It is also possible to apply a paint that increases the friction to the belt-like region where the friction driven wheels 23a and 23b roll on the work floor surface 7 of the carriage 1 or to attach another material. Further, the belt-like region where the friction driven wheels 23a, 23b roll on the work floor 7 of the transport carriage 1 is sufficiently close to the work support means 6 on the transport carriage 1, and the work floor surface 7 When there is little risk of hindering the worker's walking in the rack, rack gears are laid in the belt-like regions where the friction driven wheels 23a, 23b roll on the work floor 7, and the friction driven wheels 23a, 23b By configuring with a pinion gear that meshes with the rack gear, the conveyor 9 for workers can be friction-driven more strongly and reliably. Of course, the rack gear on the transport carriage 1 side can also be laid in a concave groove formed in the work floor 7 of the transport carriage 1.

  The conveyor system for work lines of the present invention can improve workability in a specific work section that is low on the work floor surface on the transport carriage and makes it difficult for the operator to perform work on the loaded work, while keeping the equipment cost low. Can be used as equipment.

DESCRIPTION OF SYMBOLS 1 Transfer cart 6 Work support means 7 Work floor 8A-8D Friction drive device 9 Worker conveyor 10 Belt conveyor main body 11a, 11b Slope member 15 Frame 16a, 16b A pair of front and rear rotating bodies 17 Conveyor belt 17a Worker boarding Surfaces 18a, 18b Cover plates 22a, 22b Rotating shafts 23a, 23b Friction driven wheels 24a, 24b Rotating body drive shafts 25a, 25b Transmission means 26a, 26b Spur gears 27 Support wheels 28a, 28b Support means 29a, 29b Bearing members 31a , 31b Support member 32 Horizontal support shaft 33a, 33b Reinforcing shaft member 34 Take-up means 45 Suspension cable such as a chain block 46 Motor with speed reducer

Claims (3)

  A workpiece conveyor is provided along the workpiece conveyance path, and a worker conveyor arranged in parallel in a certain section of the workpiece conveyance path. The workpiece conveyor is stretched laterally from the workpiece to be supported. The work conveyor is supported on the ground side so as to overlap the work floor of the work transfer conveyor, and the work conveyor includes the work transfer conveyor. A friction driven wheel that is frictionally driven in contact with the work floor surface of the work is pivotally supported. The friction driven wheel and an endless hanging rotating body that forms a worker riding surface of the worker conveyor are mounted on the worker board. A conveyor system for work lines, the surfaces of which are interlocked so that the surfaces move at the same speed as the work floor.   The conveyor for the worker is supported by the worker so that the outer side extending from the conveyor for conveying the work laterally is pivoted around a horizontal support shaft parallel to the length direction of the conveyor for the worker. On the inner side of the conveyor, a plurality of supporting wheels that are driven and rotated in contact with the work floor surface of the workpiece conveying conveyor are pivotally supported at appropriate intervals in the length direction of the conveyor of the worker. The conveyor equipment for a work line according to claim 1, wherein at least one of the working wheels also serves as the friction driven wheel.   The workpiece conveying conveyor is configured by a plurality of conveying carts that run in a tandem state, and the friction driven wheels of the operator conveyor are spaced at intervals that do not match the total length of the one conveying cart in the moving direction. A pair of front and rear frictionally driven wheels are supported by a pair of front and rear rotating bodies that stretch the endless hanging rotating body of the operator conveyor, and are intermediate between the pair of front and rear friction driven wheels. 3. The work line conveyor system according to claim 1, wherein at least one support wheel that rotates in contact with the work floor of the transfer carriage is pivotally supported at the position. 4.

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