JP4369982B1 - Transport device - Google Patents

Abstract

A transport apparatus capable of smooth transportation is provided.
SOLUTION: An initial speed drive belt 29, an acceleration drive belt 30, a deceleration drive belt 31 and an end speed drive belt 32 installed on a moving path of a pallet 9 are connected to a front running roller 7 and a continuously variable transmission mechanism 16. By interrupting between the members, the number of rotations of the front traveling roller 7 is increased or decreased, and the pallet 9 is accelerated or decelerated steplessly, and the posture of the pallet 9 is changed to form a continuous tread.
[Selection] Figure 1

Description

  The present invention relates to a transfer device that can be used on a moving sidewalk.

  A general moving walkway has a constant conveyance speed from the entrance to the exit. If the conveyance speed is low, the user walks on a moving member such as a belt or pallet, and conversely increases the conveyance speed. Then, getting on and off especially elderly people and infants becomes difficult. In order to solve such problems, a variable-speed moving walk using a belt or a variable-speed moving walk using a pallet has been proposed.

  As a variable-speed moving sidewalk using a belt, there is one in which three or more sets of endless conveyor belts are arranged in tandem in the conveyance direction (see, for example, Patent Document 1). In the case of having a transport belt on the entrance side, a transport belt in the middle part, and a transport belt on the exit side, the circulation speed of the transport belt on the entrance side and on the exit side is low so that the user can easily get on and off. By setting the lap speed of the intermediate portion of the conveyor belt higher than that of the conveyor belt on the entrance side and the exit side, a light movement is provided to the user.

  In addition, as a variable-speed moving walk using a pallet, there is one in which a number of base plates (pallets) that can be expanded and contracted in the transport direction are electromagnetically connected to move from the entrance to the exit (for example, Patent Documents). 2). The base plate has a structure in which two extensible base plates are attached to the lower side of the base base plate so as to be slidable in the transport direction.

  In the vicinity of the entrance, the base plate with the telescopic base plate stored in the lower side of the main base plate is moved at a low speed. The base plate is extended and accelerated at the end of the entrance, and the extended base plate is moved at a high speed. The base plate is shrunk and decelerated before the exit, and the base plate in a state where the telescopic base plate is stored on the lower side of the main base plate is moved at a low speed near the exit.

When the base plate is turned from the exit to the return path, and when the base plate is turned from the return path to the entrance, the electromagnetic connection between the base plates is released.
Japanese Unexamined Patent Publication No. 2000-177962 Japanese Patent Laid-Open No. 8-20483

  In the moving sidewalk of Patent Document 1, it is not possible to carry out smooth transportation because the user has to transfer the transportation belts having different lap speeds in the middle of the transportation route.

  In the moving sidewalk of Patent Document 2, it is necessary to provide a mechanism for electromagnetically connecting and releasing the adjacent base plates, and there is a concern about the durability of the base plate having a stretchable structure.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a transport apparatus having a variable speed function and capable of smooth transportation.

In order to achieve the above object, the invention described in claim 1
An outward guide rail extending from the entrance to the exit, a return guide rail provided directly below the outward guide rail, a number of pallets equipped with traveling rollers that are guided by the outward guide rail and the return guide rail and roll. The exit side sprocket that turns the pallet in turn from the end of the forward guide rail to the starting point of the return path guide rail, and the entrance side sprocket that turns the pallet in order from the end of the return path guide rail to the starting end of the forward route guide rail, A transport device that moves the pallets in a continuous state from the entrance to the exit,
Extending the supporting shaft of the traveling roller to the side of the pallet, forming a first inclined surface protruding from the outer edge of the roller toward the roller side toward the roller side on the end surface of the traveling roller, and having an outer diameter smaller than the traveling roller and A hollow continuously variable transmission member provided with a support cylinder that is integrated with the first inclined surface and surrounds a support shaft extension portion in the circumferential direction, and has a second inclined surface that is symmetrical to the first inclined surface of the traveling roller. A movable cylinder is fitted inside a one-way clutch that does not allow idling in the rolling direction of the traveling roller, and the movable cylinder is externally fitted to the supporting cylinder so as to be displaceable only in the axial direction. Provide a spring to bias
An endless first-speed drive belt that can circulate along the forward guide rail in the vicinity of the entrance, and the first-speed drive belt cuts between the travel roller and the continuously variable transmission member to form first and second inclined surfaces. In addition, the drive belt outer circumferential surface is stretched over the support cylinder so as to keep a certain distance, and the initial speed drive belt is circulated in accordance with the running roller rolling direction,
An endless acceleration driving belt that can circulate along the forward guide rail at the end of the entrance, and the acceleration driving belt cuts between the travel roller and the continuously variable transmission member, and the first and second inclined surfaces In addition, the drive belt outer peripheral surface is stretched so as to gradually approach the support tube from the entrance side toward the exit side, and the acceleration drive belt is made to circulate in accordance with the rolling direction of the running roller,
An endless decelerating drive belt that can circulate along the forward guide rail before the exit, and the decelerating drive belt cuts between the travel roller and the continuously variable transmission member, and the first and second inclined surfaces In addition, the drive belt outer circumferential surface is stretched away from the support tube from the entrance side toward the exit side, and the speed reduction drive belt is circulated in accordance with the traveling roller rolling direction.
An endless drive belt for endless speed that can circulate along the forward guide rail in the vicinity of the exit, and the end speed drive belt interrupts between the traveling roller and the continuously variable transmission member, and the first and second inclinations In addition to contacting the surface, the outer peripheral surface of the drive belt is stretched over the support cylinder so as to maintain a constant interval, and the drive belt for the final speed is made to circulate according to the traveling roller rolling direction,
A forward drive mechanism for moving the pallet at high speed from the entrance side to the exit side is provided between the acceleration drive belt and the deceleration drive belt,
A return drive mechanism for moving the pallet at high speed from the exit side to the entrance side is provided between the exit side sprocket and the entrance side sprocket.

The invention described in claim 2
First and second outward guide rails extending from the entrance to the exit, first and second return guide rails provided immediately below these outward guide rails, the first outward guide rail and the first return guide A plurality of pallets mounted with a front traveling roller that is guided by the rail and rolling, and mounted with a rear traveling roller that is guided by the second forward guide rail and the second backward guide rail and that rolls; Downward sprocket for turning the pallet sequentially from the end of the second forward guide rail to the first and second of the return guide rail, and the first and second from the end of the first and second return guide rails And a transport device that sequentially turns the pallet to the starting end of the forward guide rail, and moves the pallet in a connected state from the entrance toward the exit,
The support shaft of the front running roller is extended to the side of the pallet, and the end surface of the front running roller is formed with a first inclined surface protruding from the outer edge of the roller toward the roller side to the roller side. A hollow cylinder having a second inclined surface symmetrical to the first inclined surface of the front running roller and provided with a support cylinder which is small and integrated with the first inclined surface and surrounds the supporting shaft extension portion in the circumferential direction. A movable cylinder is fitted inside the step transmission member via a one-way clutch that does not allow idling in the rolling direction of the front traveling roller, and the movable cylinder is externally fitted to the support cylinder so as to be displaceable only in the axial direction, and then moved. Provide a spring that urges the cylinder toward the front running roller,
An endless initial speed drive belt that can circulate along the first forward guide rail in the vicinity of the entrance is inserted between the front traveling roller and the continuously variable transmission member. The outer peripheral surface of the drive belt is stretched over the support cylinder so as to maintain a certain distance, and the drive belt for the initial speed is made to circulate in accordance with the rolling direction of the front running roller,
An endless acceleration driving belt that can circulate along the first forward guide rail at the tip of the entrance is inserted between the front running roller and the continuously variable transmission member, and the first and second In addition to being in contact with the inclined surface of No. 2 and extending from the entrance side to the exit side so that the outer peripheral surface of the drive belt gradually approaches the support cylinder, the drive belt for acceleration is circulated in accordance with the rolling direction of the front running roller. And let
An endless decelerating drive belt that can circulate along the first forward guide rail before the exit is inserted between the front running roller and the continuously variable transmission member. In addition to being in contact with the inclined surface of No. 2 and extending from the entrance side to the exit side so that the outer peripheral surface of the drive belt is gradually separated from the support tube, the drive belt for deceleration is circulated in accordance with the rolling direction of the front running roller. And let
An endless end-speed driving belt that can circulate along the first forward guide rail in the vicinity of the exit, and the end-speed driving belt interrupts between the front traveling roller and the continuously variable transmission member, While contacting the second inclined surface, the drive belt outer peripheral surface is stretched over the support cylinder so as to maintain a constant interval, and the final speed drive belt is circulated in accordance with the rolling direction of the front running roller,
A forward drive mechanism for moving the pallet at high speed from the entrance side to the exit side is provided between the acceleration drive belt and the deceleration drive belt,
A return path drive mechanism that moves the pallet at high speed from the exit side to the entrance side between the exit side sprocket and the entrance side sprocket,
In the section in which the initial speed drive belt is provided, the first outward guide rail is positioned below the second outward guide rail so that the plurality of pallets overlap in the movement direction with the rear end face facing upward.
In the section where the acceleration drive belt is provided, the vertical position of the first forward guide rail is set to the second forward guide rail so that the plurality of pallets are connected in a posture where the front end face gradually faces the exit side. Close
In the section where the deceleration driving belt is provided, the vertical position of the second forward guide rail is set so that the plurality of pallets gradually move in the posture in which the front end face faces upward and overlaps the moving direction. Away from
In the section where the final speed drive belt is provided, the second forward guide rail is positioned below the first forward guide rail so that the plurality of pallets overlap in the moving direction with the front end face facing upward. Yes.

The invention according to claim 3
The rear end portion of the preceding pallet and the front end portion of the next pallet are configured to be fitted so as to be relatively movable in the front-rear direction.

The invention according to claim 4
An endless chain that can be circulated is stretched between the acceleration drive belt and the deceleration drive belt, and the pallet can be engaged with the part that travels from the entrance side to the exit side of the chain so that it can be driven forward. As a mechanism, an endless chain that can be circulated is stretched between the exit side sprocket and the entrance side sprocket, and the pallet can be engaged with the part that advances from the exit side to the entrance side of the chain. The return drive mechanism is used.

  According to the transport apparatus of the present invention, the following excellent effects can be obtained.

  (1) The number of rotations of the traveling roller by interrupting the driving belt for initial speed, the driving belt for acceleration, the driving belt for deceleration, and the driving belt for final speed installed in the pallet moving path between the traveling roller and the continuously variable transmission member. Since the pallet is accelerated and decelerated steplessly, elderly people and infants can easily get on and off the pallet.

  (2) A plurality of pallets are moved at a low speed so that the rear end faces are directed upward and overlapped in the moving direction, and further, the plurality of pallets are gradually connected such that the front end faces gradually face the down side. After accelerating, the pallets are gradually decelerated so that the front end faces are oriented upward and overlap in the moving direction, and the pallets are slowed so that the front end faces are oriented upward and overlap the moving direction. As the pallet is accelerated or decelerated, a substantially flat tread surface that is continuous over the entire length of the transport path is formed, and smooth transportation can be performed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIGS. 1 to 13 show an example of a transport apparatus according to the present invention. First and second outward guide rails 3 and 4 extending from directly under the entrance step 1 to immediately under the exit step 2, and these outward guide rails. First and second return path guide rails 5 and 6 provided immediately below 3 and 4 and a front traveling roller 7 which is guided by the first forward path guide rail 3 and the first return path guide rail 5 and rolls are mounted. In addition, a number of pallets 9 mounted with rear running rollers 8 that are guided by the second forward guide rail 4 and the second backward guide rail 6 to roll, and the first and second forward guide rails 3 and 4 are provided. A descending sprocket 10 for turning the pallet 9 in turn from the end of the first and second return guide rails 5 and 6 to the start of the first and second return guide rails 5 and 6; A ride that turns the pallet 9 in turn to the leading ends of the second forward guide rails 3 and 4 And a mouth-side sprocket 11 is moved in a state of continuous pallet 9 toward the exit gate Step 2 from the entrance gate Step 1 (see FIG. 1).

  The second outward guide rail 4 and the second backward guide rail 6 are arranged on both the left and right sides of the pallet 9 moving route as viewed in the transport direction, and the first outward guide rail 3 and the first backward guide rail 5 are arranged. Is arranged outside the second forward guide rail 4 and the second return guide rail 6 with the pallet moving route as the center when viewed in the transport direction. Further, the exit side sprocket 10 and the entrance side sprocket 11 are arranged outside the left and right first forward guide rails 3 and the first return path guide rails 5 as viewed in the transport direction (FIGS. 2 to 4). reference).

  The pallet 9 has a flat trapezoidal shape that protrudes longer toward the front F side with respect to the center line P in the longitudinal direction of the pallet when viewed from the side, and a narrow engagement member 12 when viewed from above, and the pallet when viewed from the side. A flat trapezoidal shape that protrudes longer toward the rear R side with respect to the front-rear direction center line P, and narrow engagement members 13 that are viewed from above are integrated by being alternately arranged in the width direction (FIG. 5). To FIG.

  At the front end of the pallet 9, a gap 14 is formed between the meshing members 12, 12, and at the rear end of the pallet 9, a gap 15 is formed between the meshing members 13, 13 in the opposite phase to the gap 14. . Then, the front end portion of the meshing member 12 of the next pallet 9 enters the space 15 at the rear end portion of the preceding pallet 9 and the meshing member 13 of the pallet 9 preceding the space 14 at the front end portion of the next pallet 9. The rear end portion enters, and the pallet 9 is fitted so as to be relatively movable in the front-rear direction.

  The entrance step 1 has comb teeth corresponding to the gap 15 on the rear end side of the pallet 9, and the exit step 2 has comb teeth corresponding to the gap 14 on the front end side of the pallet 9.

  The front traveling roller 7 and the rear traveling roller 8 are attached to the left and right sides of the pallet 9, and a continuously variable transmission mechanism 16 is attached to the front traveling roller 7.

  The continuously variable transmission mechanism 16 extends the support shaft 17 of the front traveling roller 7 to the pallet 9 side, and projects from the outer edge of the front traveling roller 7 toward the roller side toward the roller side from the roller outer edge. 18 is formed, and a support cylinder 19 having a smaller outer diameter than the front traveling roller 7 and integrated with the first inclined surface 18 and surrounding the extended portion of the support shaft 17 in the circumferential direction is provided. The movable cylinder 23 is disposed in a hollow continuously variable transmission member 21 having a second inclined surface 20 symmetrical to the inclined surface 18 via a one-way clutch 22 that does not allow idling in the rolling direction of the front traveling roller 7. The movable cylinder 23 is externally fitted to the support cylinder 19 by the key 24 so as to be displaceable only in the axial direction, and a spring 25 for urging the movable cylinder 23 toward the front running roller 7 is provided. Turned to support the part It is constituted to receive a spring 25 La 26 (see FIG. 9, FIG. 10 or the like). Reference numeral 37 denotes a bearing for the front traveling roller 7, and reference numeral 38 denotes a bearing for the turning roller 26.

  The continuously variable transmission mechanism 16 has a role in which the turning roller 26 meshes with the descending sprocket 10 and guides the front traveling roller 7 that has passed through the first outward guide rail 3 to the first return guide rail 5, and the turning roller. 26 engages with the entrance-side sprocket 11 and plays a role of guiding the front traveling roller 7 that has passed through the first return path guide rail 5 to the first forward path guide rail 3 (see FIGS. 1, 11, 12, and the like). ).

  A turning rail 27a that guides the front traveling roller 7 in the circumferential direction of the sprocket is provided on substantially half the circumference of the left and right exit side sprockets 10 so as to continue to the first return path guide rail 5. A turning rail 28a for guiding the front traveling roller 7 in the sprocket circumferential direction is provided so as to be continuous with the first forward guide rail 3 (see FIGS. 1 to 3 and the like).

  Between the left and right exit sprockets 10, a turning rail 27 b that guides the rear running roller 8 in the circumferential direction of the sprocket is provided so as to continue to the second forward guide rail 4 and the second return guide rail 6. Between the left and right entrance sprockets 11, a turning rail 28b for guiding the rear running roller 8 in the circumferential direction of the sprocket is provided so as to be continuous with the second return guide rail 6 and the second outward guide rail 4. Yes (see FIGS. 1-3).

  A pair of upper and lower endless initial speed drive belts 29 that can circulate along the first forward guide rail 3 in the vicinity of the entrance step 1, and the initial speed drive belt 29 is connected to the front running roller 7 and the continuously variable transmission member 21. In between the upper and lower sides, the first and second inclined surfaces 18 and 20 are in contact with each other, the outer peripheral surface of the drive belt 29 is stretched over the support cylinder 19 so as to maintain a certain distance, and the front running roller 7 rolls. The initial speed drive belt 29 is made to circulate in accordance with the moving direction (see the left side of FIG. 1).

  In the section in which the initial speed drive belt 29 is provided, the first forward guide rail is provided so that the plurality of pallets 9 can overlap in the moving direction with the rear end face facing upward (the rear end face of the pallet 9 becomes the tread). 3 is positioned below the second forward guide rail 4 (see FIG. 2).

  A pair of upper and lower endless acceleration driving belts 30 that can circulate along the first forward guide rail 3 at the end of the entrance step 1, and the acceleration driving belt 30 includes the front traveling roller 7 and the continuously variable transmission member. 21 between the upper and lower sides of the belt 21 so as to contact the first and second inclined surfaces 18 and 20 and stretch so that the outer peripheral surface of the drive belt 30 gradually approaches the support cylinder 19 from the entrance side toward the exit side. In addition, the acceleration drive belt 30 is made to circulate in accordance with the rolling direction of the front traveling roller 7 (see the left side of FIG. 1).

  In the section in which the acceleration drive belt 30 is provided, the vertical position of the first forward guide rail 3 is gradually increased so that the plurality of pallets 9 can be connected in a posture where the front end surface gradually faces the exit side. It is approaching to the outward guide rail 4 (see FIG. 2).

  However, when the vertical position of the first outward guide rail 3 is aligned with the second outward guide rail 4, the second outward route passes through the “notch” through which the support shaft 17 of each pallet 9 can pass from the lower side to the upper side. A lid member 47 formed on the guide rail 4 and lifted when passing through the support shaft 17 and closed by its own weight so that the rear running roller 8 can roll is provided in the opening (see FIG. 2).

  A pair of upper and lower endless decelerating drive belts 31 that can circulate along the first forward guide rail 3 before the exit step 2, and the decelerating drive belt 31 includes the front running roller 7 and a continuously variable transmission member. Between the upper and lower sides of the belt 21, the first and second inclined surfaces 18 and 20 are touched, and the outer peripheral surface of the drive belt 31 is gradually separated from the support cylinder 19 from the entrance side toward the exit side. In addition, the deceleration driving belt 31 is made to circulate in accordance with the rolling direction of the front traveling roller 7 (see the right side portion in FIG. 1).

  In the section where the deceleration driving belt 31 is provided, the vertical position of the second forward guide rail 4 is set so that the plurality of pallets 9 can gradually overlap in the moving direction with the front end surface facing upward. The forward guide rail 3 is gradually separated downward.

  A pair of upper and lower endless end-speed drive belts 32 that can circulate along the first forward guide rail 3 in the vicinity of the exit step 2, and the end-speed drive belt 32 and the front running roller 7 are continuously variable. Between the members 21 from both upper and lower sides, the first and second inclined surfaces 18 and 20 are in contact with each other, and the outer peripheral surface of the drive belt 32 is stretched over the support cylinder 19 so as to maintain a constant interval, and the front running roller The final-speed drive belt 32 is made to circulate in accordance with the seven rolling directions (see the right side of FIG. 1).

  In the section in which the final speed drive belt 32 is provided, the second forward guidance is provided so that the plurality of pallets 9 can overlap in the moving direction with the front end face facing upward (the front end face of the pallet 9 becomes the tread). The rail 4 is positioned below the first forward guide rail 3. (See Figure 3)

  The initial speed driving belt 29, the acceleration driving belt 30, the deceleration driving belt 31, and the final speed driving belt 32 described above serve to rotate the front traveling roller 7 via the continuously variable transmission mechanism 16 (FIG. 1, 9 and 10).

  Further, between the acceleration drive belt 30 and the deceleration drive belt 31, an endless roller chain 40 that can be circulated by a pair of sprockets 39, 39 is provided below the first and second forward guide rails 3, 4. The roller chain 40 is provided with a protrusion that can be engaged with the pallet 9 so as to move the pallet 9 at a high speed from the entrance to the exit (see FIG. 1). .

  Further, an endless roller chain 42 that can be circulated by a pair of sprockets 41, 41 is disposed above the first and second return guide rails 5, 6 between the exit sprocket 10 and the entrance sprocket 11. The roller chain 42 is provided with a protrusion that can be engaged with the pallet 9 so as to move the pallet 9 at a high speed from the exit side to the entrance side (see FIG. 1). However, the roller chains 40 and 42 may be connected to endless strips to form an integrated drive mechanism in the forward path and the return path.

  The base end portions of the front side link 43 and the rear side link 44 are swingably attached to the support shaft 17 of each pallet 9, and the front end portions of the front side link 43 and the rear side link 44 are connected to the connecting portion. The posture adjusting roller 45 is pivotally supported. The posture adjusting roller 45 is guided by an endless posture adjusting rail 46 disposed inward of the circulation path of the pallet 9 (see FIGS. 2 to 5).

  In the section in which the initial speed drive belt 29 is provided, the interval between the front running rollers 7 of the adjacent pallets 9 is narrowed, and the plurality of pallets 9 are overlapped in the moving direction with the rear end surfaces facing upward. The attitude adjustment rail 46 is positioned below the guide rail 3.

  In the section in which the acceleration drive belt 30 is provided, the interval between the front running rollers 7 of the adjacent pallets 9 gradually increases, and the plurality of pallets 9 are connected in a posture in which the front end faces gradually face the exit side. The attitude adjustment rail 46 is gradually brought closer to the first outward guide rail 3.

  In the section where the deceleration driving belt 31 is provided, the interval between the front running rollers 7 of the adjacent pallets 9 is gradually narrowed so that the plurality of pallets 9 gradually become in a posture in which the front end surface faces upward and overlaps the moving direction. The attitude adjustment rail 46 is gradually separated from the first forward guide rail 3.

  In the section where the final speed drive belt 32 is provided, the interval between the front running rollers 7 of the adjacent pallets 9 is narrowed, and the plurality of pallets 9 are overlapped in the moving direction with the front end face facing upward. The posture adjusting rail 46 is located below the forward guide rail 3.

  Since the principle of the mechanism for rotating the initial speed drive belt 29, the acceleration drive belt 30, the deceleration drive belt 31, and the final speed drive belt 32 is the same, the acceleration drive belt 30 will be described as a representative example. The driving belt 30 is wound around means for pressing the side surfaces of the pair of pulleys 33 and 33 and the acceleration driving belt 30 against the first and second inclined surfaces 18 and 20 of the continuously variable transmission mechanism 16. When the pulley 33 is rotated by a motor, it rotates at a constant speed.

  A pair of means for pressing the side surface of the acceleration drive belt 30 against the first and second inclined surfaces 18 and 20 of the continuously variable transmission mechanism 16 is arranged closer to the moving path of the continuously variable transmission mechanism 16 than the pulley 33. An endless roller chain 35 is wound around the sprockets 34, 34, and a contact bar 36 made of synthetic resin or the like that abuts against the inner peripheral surface of the roller chain 35 is assembled between the sprockets 34, 34. By urging to the roller chain 35 side, the side surface of the acceleration drive belt 30 is pressed against the first and second inclined surfaces 18 and 20 of the continuously variable transmission mechanism 16 from above or below (FIG. 9, FIG. 9). 10, see FIG.

  The initial speed drive belt 29 has a portion facing the support cylinder 19 on the outer peripheral surface of the drive belt 29 extending from the entrance side to the exit side so as to maintain a certain distance from the support cylinder 19. The position where the side surface of the drive belt 29 is in contact with the first and second inclined surfaces 18 and 20 does not change, and the rotational speed of the front traveling roller 7 is kept at a relatively low constant value (initial speed) (see FIG. 9). ). As a result, the pallet 9 moves at a low speed while maintaining a posture in which the rear end face is directed upward, and the pallet 9 that has passed through the section in which the initial speed drive belt 29 is provided is pushed out by another subsequent pallet 9. Then, the vehicle enters the section where the acceleration drive belt 30 is provided.

  The acceleration drive belt 30 is stretched so that the portion of the outer peripheral surface of the drive belt 30 facing the support cylinder 19 gradually approaches the support cylinder 19 from the entrance side toward the exit side. As the mechanism 16 advances to the exit side, the acceleration drive belt 30 gradually increases the distance between the first and second inclined surfaces 18 and 20 against the spring 25, and the side surface of the drive belt 30 and the first, The position where the second inclined surfaces 18 and 20 come into contact approaches the rotational center of the front traveling roller 7 and the continuously variable transmission member 21, and the rotational speed of the front traveling roller 7 gradually increases due to this position change. As a result, the pallet 9 gradually moves while being accelerated with the front end surface facing the exit side, and becomes the fastest with the outer peripheral surface of the drive belt 30 closest to the support cylinder 19 (see FIG. 10).

  The pallet 9 that has passed through the section in which the acceleration drive belt 30 is provided is pushed out by another subsequent pallet 9 and enters the section in which the roller chain 40 of the forward drive mechanism is provided, and is pulled by the roller chain 40. Been moving at high speed. The pallet 9 that has entered the roller chain 40 installation section pulls the subsequent pallet 9 that has not reached the roller chain 40 installation section via the links 43 and 44. The pallet 9 that has passed through the roller chain 40 installation section is sent out by another subsequent pallet 9 and enters a section in which the deceleration drive belt 31 is provided.

  Since the drive belt 31 for deceleration extends from the entrance side to the exit side, a portion of the outer peripheral surface of the drive belt 31 facing the support cylinder 19 is stretched so as to gradually move away from the support cylinder 19. Immediately after the pallet 9 enters the section in which the drive belt 31 is provided, the side surface of the drive belt 31 suddenly contacts the outer edge portions of the first and second inclined surfaces 18 and 20 rotating at a high peripheral speed. The deceleration drive belt 31 abruptly increases the distance between the first and second inclined surfaces 18 and 20 against the spring 25 and temporarily rotates the continuously variable transmission member 21.

  The continuously variable transmission member 21 having the side surface of the drive belt 31 in contact with the second inclined surface 20 until the outer peripheral surface of the drive belt 31 comes closest to the support cylinder 19 (see FIG. 10) is the continuously variable transmission member. Since the one-way clutch 22 is interposed between the moving cylinder 23 and the moving cylinder 23, after temporarily idling, it follows the deceleration drive belt 31 and rotates at a lower peripheral speed than the front traveling roller 7. At this time, the front running roller 7 rolls on the first forward guide rail 3 while gradually reducing the peripheral speed, and the side surface of the drive belt 31 slides on the first inclined surface 18.

  Then, after the outer peripheral surface of the drive belt 31 comes closest to the support cylinder 19, the spring 25 increases the distance between the first and second inclined surfaces 18 and 20 as the continuously variable transmission mechanism 16 advances toward the exit side. The position where the side surface of the drive belt 30 is in contact with the first and second inclined surfaces 18 and 20 moves away from the center of rotation of the continuously variable transmission member 21, and the rotational speed of the front traveling roller 7 gradually increases due to this position change. In addition, the pallet 9 gradually assumes a posture in which the front end face is directed upward. The pallet 9 that has passed through the section in which the deceleration drive belt 31 is provided is sent out by another subsequent pallet 9 and enters the section in which the final speed drive belt 32 is provided.

  Since the drive belt 32 for final speed extends from the entrance side to the exit side, the portion of the outer peripheral surface of the drive belt 32 that faces the support cylinder 19 is stretched across the support cylinder 19 so as to maintain a constant interval. The position where the side surface of the drive belt 32 is in contact with the first and second inclined surfaces 18 and 20 does not change, and the rotational speed of the front running roller 7 is kept at a relatively low constant value (final speed) (FIG. 9). As a result, the pallet 9 moves at a low speed while maintaining a posture in which the rear end face is directed upward, and the pallet 9 that has passed through the section in which the initial speed drive belt 29 is provided is sent out by another subsequent pallet 9. Then, it proceeds to the exit side sprocket 10 through the lower part of the exit step 2.

  Thereafter, the turning roller 26 of the continuously variable transmission mechanism 16 meshes with the descending sprocket 10, and the front traveling roller 7 passing through the first forward guide rail 3 is guided to the first return guide rail 5 by the turning rail 27a. At the same time, the rear traveling roller 8 that has passed through the second outward guide rail 4 is guided to the second backward guide rail 6 by the turning rail 27b, and the pallet 9 is in a posture in which the tread surface on which the user is placed faces downward.

  The pallet 9 from which the turning roller 26 has been removed from the sprocket 10 is sent out by the other pallet 9 that follows, enters the section where the roller chain 42 of the return path drive mechanism is provided, and is pulled by the roller chain 42. Move at high speed. The pallet 9 that has entered the roller chain 42 installation section pulls the subsequent pallet 9 that has not yet reached the roller chain 40 installation section by the links 43 and 44.

  The pallet 9 that has passed the roller chain 42 installation section is sent out by another subsequent pallet 9 and proceeds to the entrance-side sprocket 11, and then the turning roller 26 of the continuously variable transmission mechanism 16 meshes with the entrance-side sprocket 11. . Further, the pallet 9 in which the turning roller 26 is engaged with the entrance-side sprocket 11 pulls the subsequent pallet 9 by the links 43 and 44.

  When the turning roller 26 meshes with the entrance-side sprocket 11, the front traveling roller 7 that has passed through the first return path guide rail 5 is guided to the first forward path guide rail 3 by the turning rail 28a and the second return path guide rail. 6, the rear running roller 8 is guided to the second forward guide rail 4 by the turning rail 28b, and the pallet 9 is in a posture in which the front end face faces upward.

  In the present invention, the initial speed driving belt 29, the acceleration driving belt 30, the deceleration driving belt 31, and the final speed driving belt 32 are interrupted between the front traveling roller 7 and the continuously variable transmission member 21 to perform the front traveling. Since the rotational speed of the roller 7 is increased and decreased and the pallet 9 is accelerated and decelerated steplessly, an elderly person or an infant can easily get on and off the pallet 9.

  Further, the plurality of pallets 9 are moved at a low speed so that the rear end faces are directed upward and overlapped with each other in the moving direction, and the plurality of pallets 9 are gradually connected such that the front end faces are gradually oriented toward the exit side. After the acceleration, the plurality of pallets 9 are gradually decelerated so that the front end face is oriented upward and overlapped in the moving direction, and the plurality of pallets 9 are overlapped in the moving direction with the front end face oriented upward. Therefore, even if the pallet 9 is accelerated or decelerated, a continuous tread is formed and smooth transportation can be performed.

  In addition, the conveying apparatus of this invention is not limited only to embodiment mentioned above, Of course, it can add a change in the range which does not deviate from the summary of this invention.

  The conveyance device of the present invention can be applied to transportation of articles including people.

It is a conceptual diagram which shows an example of the conveying apparatus of this invention. It is an enlarged view of the vicinity of the entrance related to FIG. It is an enlarged view of the vicinity of the exit related to FIG. It is a top view of a pallet. It is a perspective view of a pallet. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. It is CC arrow line view of FIG. It is sectional drawing at the time of the low speed of a continuously variable transmission mechanism. It is sectional drawing at the time of the high speed of a continuously variable transmission mechanism. It is a perspective view which shows the attitude | position of the pallet in the vicinity of the entrance. It is a perspective view which shows the attitude | position of the pallet in the vicinity of the exit. It is a conceptual diagram which shows the surrounding mechanism of a drive belt.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ride step 2 Exit step 3 1st outward guide rail 4 2nd outward guide rail 5 1st return route guide rail 6 2nd return route guide rail 7 Front side traveling roller 8 Rear side traveling roller 9 Pallet 10 Exit Side sprocket 11 Entrance side sprocket 17 Support shaft 18 First inclined surface 19 Support cylinder 20 Second inclined surface 21 Continuously variable transmission member 22 One-way clutch 23 Moving cylinder 25 Spring 29 Initial speed drive belt 30 Acceleration drive belt 31 Deceleration Drive belt 32 Final speed drive belt 40 Roller chain 42 Roller chain

Claims (4)

An outward guide rail extending from the entrance to the exit, a return guide rail provided directly below the outward guide rail, a number of pallets equipped with traveling rollers that are guided by the outward guide rail and the return guide rail and roll. The exit side sprocket that turns the pallet in turn from the end of the forward guide rail to the starting point of the return path guide rail, and the entrance side sprocket that turns the pallet in order from the end of the return path guide rail to the starting end of the forward route guide rail, A transport device that moves the pallets in a continuous state from the entrance to the exit,
Extending the supporting shaft of the traveling roller to the side of the pallet, forming a first inclined surface protruding from the outer edge of the roller toward the roller side toward the roller side on the end surface of the traveling roller, and having an outer diameter smaller than the traveling roller and A hollow continuously variable transmission member provided with a support cylinder that is integrated with the first inclined surface and surrounds a support shaft extension portion in the circumferential direction, and has a second inclined surface that is symmetrical to the first inclined surface of the traveling roller. A movable cylinder is fitted inside a one-way clutch that does not allow idling in the rolling direction of the traveling roller, and the movable cylinder is externally fitted to the supporting cylinder so as to be displaceable only in the axial direction. Provide a spring to bias
An endless first-speed drive belt that can circulate along the forward guide rail in the vicinity of the entrance, and the first-speed drive belt cuts between the travel roller and the continuously variable transmission member to form first and second inclined surfaces. In addition, the drive belt outer circumferential surface is stretched over the support cylinder so as to keep a certain distance, and the initial speed drive belt is circulated in accordance with the running roller rolling direction,
An endless acceleration driving belt that can circulate along the forward guide rail at the end of the entrance, and the acceleration driving belt cuts between the travel roller and the continuously variable transmission member, and the first and second inclined surfaces In addition, the drive belt outer peripheral surface is stretched so as to gradually approach the support tube from the entrance side toward the exit side, and the acceleration drive belt is made to circulate in accordance with the rolling direction of the running roller,
An endless decelerating drive belt that can circulate along the forward guide rail before the exit, and the decelerating drive belt cuts between the travel roller and the continuously variable transmission member, and the first and second inclined surfaces In addition, the drive belt outer circumferential surface is stretched away from the support tube from the entrance side toward the exit side, and the speed reduction drive belt is circulated in accordance with the traveling roller rolling direction.
An endless drive belt for endless speed that can circulate along the forward guide rail in the vicinity of the exit, and the end speed drive belt interrupts between the traveling roller and the continuously variable transmission member, and the first and second inclinations In addition to contacting the surface, the outer peripheral surface of the drive belt is stretched over the support cylinder so as to maintain a constant interval, and the drive belt for the final speed is made to circulate according to the traveling roller rolling direction,
A forward drive mechanism for moving the pallet at high speed from the entrance side to the exit side is provided between the acceleration drive belt and the deceleration drive belt,
A transport device comprising a return drive mechanism for moving the pallet at high speed from the exit side to the entrance side between the exit side sprocket and the entrance side sprocket. First and second outward guide rails extending from the entrance to the exit, first and second return guide rails provided immediately below these outward guide rails, the first outward guide rail and the first return guide A plurality of pallets mounted with a front traveling roller that is guided by the rail and rolling, and mounted with a rear traveling roller that is guided by the second forward guide rail and the second backward guide rail and that rolls; A sprocket on the exit side that turns the pallet in turn from the end of the second forward guide rail to the start of the first and second return guide rails, and the first and second from the end of the first and second return guide rails And a transport device that sequentially turns the pallet to the starting end of the forward guide rail, and moves the pallet in a connected state from the entrance toward the exit,
The support shaft of the front running roller is extended to the side of the pallet, and the end surface of the front running roller is formed with a first inclined surface protruding from the outer edge of the roller toward the roller side to the roller side. A hollow cylinder having a second inclined surface symmetrical to the first inclined surface of the front running roller and provided with a support cylinder which is small and integrated with the first inclined surface and surrounds the supporting shaft extension portion in the circumferential direction. A movable cylinder is fitted inside the step transmission member via a one-way clutch that does not allow idling in the rolling direction of the front traveling roller, and the movable cylinder is externally fitted to the support cylinder so as to be displaceable only in the axial direction, and then moved. Provide a spring that urges the cylinder toward the front running roller,
An endless initial speed drive belt that can circulate along the first forward guide rail in the vicinity of the entrance is inserted between the front traveling roller and the continuously variable transmission member. The outer peripheral surface of the drive belt is stretched over the support cylinder so as to maintain a certain distance, and the drive belt for the initial speed is made to circulate in accordance with the rolling direction of the front running roller,
An endless acceleration driving belt that can circulate along the first forward guide rail at the tip of the entrance is inserted between the front running roller and the continuously variable transmission member, and the first and second In addition to being in contact with the inclined surface of No. 2 and extending from the entrance side to the exit side so that the outer peripheral surface of the drive belt gradually approaches the support cylinder, the drive belt for acceleration is circulated in accordance with the rolling direction of the front running roller. And let
An endless decelerating drive belt that can circulate along the first forward guide rail before the exit is inserted between the front running roller and the continuously variable transmission member. In addition to being in contact with the inclined surface of No. 2 and extending from the entrance side to the exit side so that the outer peripheral surface of the drive belt is gradually separated from the support tube, the drive belt for deceleration is circulated in accordance with the rolling direction of the front running roller. And let
An endless end-speed driving belt that can circulate along the first forward guide rail in the vicinity of the exit, and the end-speed driving belt interrupts between the front traveling roller and the continuously variable transmission member, While contacting the second inclined surface, the drive belt outer peripheral surface is stretched over the support cylinder so as to maintain a constant interval, and the final speed drive belt is circulated in accordance with the rolling direction of the front running roller,
A forward drive mechanism for moving the pallet at high speed from the entrance side to the exit side is provided between the acceleration drive belt and the deceleration drive belt,
A return path drive mechanism that moves the pallet at high speed from the exit side to the entrance side between the exit side sprocket and the entrance side sprocket,
In the section in which the initial speed drive belt is provided, the first outward guide rail is positioned below the second outward guide rail so that the plurality of pallets overlap in the movement direction with the rear end face facing upward.
In the section where the acceleration drive belt is provided, the vertical position of the first forward guide rail is set to the second forward guide rail so that the plurality of pallets are connected in a posture where the front end face gradually faces the exit side. Close
In the section where the deceleration driving belt is provided, the vertical position of the second forward guide rail is set so that the plurality of pallets gradually move in the posture in which the front end face faces upward and overlaps the moving direction. Away from
In the section where the final speed drive belt is provided, the second forward guide rail is positioned below the first forward guide rail so that the plurality of pallets overlap in the moving direction with the front end face facing upward. A conveying apparatus characterized by that.   The conveying apparatus according to claim 1 or 2, wherein the rear end portion of the preceding pallet and the front end portion of the next pallet are fitted so as to be relatively movable in the front-rear direction.   An endless chain that can be circulated is stretched between the acceleration drive belt and the deceleration drive belt, and the pallet can be engaged with the part that travels from the entrance side to the exit side of the chain so that it can be driven forward. The mechanism is constructed so that an endless chain that can circulate is stretched between the exit-side sprocket and the entrance-side sprocket, and the pallet can be engaged with the part that proceeds from the exit side to the entrance side of the chain. The conveyance device according to claim 1, wherein the conveyance device is a return path driving mechanism.

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