JP2005145603A - Conveyor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein dimensions in the widthwise direction and a machine space of a conveyor device become large when a folded-back part of a footstep chain of the conveyor device such as a passenger conveyor is miniaturized in the depthwise direction. <P>SOLUTION: A chain driving mechanism 6 is provided in the neighborhood of the folded-back part 1a of the footstep chain 5. The chain driving mechanism is furnished with a rotational driving device 7 mounted on a structure 3. An eccentric crankshaft 9 to eccentrically rotate is connected to the rotational driving device. A plurality of oscillating plates 11 to work to oscillate in accordance with eccentric revolution of the eccentric crankshaft are connected to the eccentric crankshaft. Trochoidal teeth 12 to converse oscillating motion of the oscillating plates 11 to driving force of the footstep chain are provided on the oscillating plates. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a conveyor device such as a passenger conveyor.

  An escalator, which is an example of a conveyor device, includes a plurality of steps provided with guide rollers on the front and rear sides. The plurality of steps are supported by engaging each guide roller with a step guide rail installed in the structure, and move horizontally in the vicinity of the entrance and exit while maintaining the level, and in the vicinity of the entrance On the way from the exit to the vicinity of the exit, it moves in the up-and-down gradient direction of about 30 °. Normally, a plurality of steps are connected by a step chain, and by driving this step chain, all the steps are configured to move synchronously and without a gap.

  The handrail belt that is grabbed and supported by the passenger is a ring-shaped belt that is wound around a structure called a balustrade and returns inside the conveyor device, and is configured to move at the same speed as the steps by the handrail drive mechanism in the conveyor device. Has been.

  A conventional conveyor device employs a drive mechanism of a type in which a step chain turn-up portion is driven by a main sprocket, and is provided in the vicinity of the entrance or exit. However, in an escalator with a large floor height, the burden on the step chain is large, and therefore, sufficient driving force may not be transmitted only by driving the step chain folding portion. Such a problem is not limited to escalators, but is a problem common to all conveyor devices having a long moving distance.

  Therefore, in a conveyor device such as an escalator with a large floor height or a moving walkway with a long moving distance, a driving force is required in the middle of a long step chain (a part other than the folded portion where the chain changes its direction) to move a single step. (For example, described in Japanese Patent Publication No. 61-19551, Japanese Patent Publication No. 61-41834, Japanese Patent Publication No. 61-41836, and Japanese Patent Publication No. 62-9520) are dispersedly arranged. It has been proposed to do.

  These drive mechanisms that provide driving force in the middle of a step chain are: a motor as a driving source, a speed reducer that amplifies the driving force by a factor of ten, and a chain driving force transmission that transmits the driving force to a straight chain. Mechanism. When a sprocket is used as the chain driving force transmission mechanism, the chain does not wrap around the sprocket, so the meshing rate decreases.

  Therefore, for example, a chain driving force transmission mechanism of a conveyor device as shown in FIGS. 7 and 8 has been proposed. In FIG. 7, 51 is a step, 52 is a step guide rail, and 60 is a chain driving force transmission mechanism. As shown in FIG. 8, the chain driving force transmission mechanism 60 includes a chain as a toothed chain 61, and a number of pin rollers 62 mesh with the toothed chain 61 using a driving chain 63 having a pin roller 62 on the driving side. I use that. Reference numeral 64 denotes a step chain.

  In addition, the inventor of the present application has proposed a conveyor device (PCT / JP00-02463) that drives a step chain using a trochoidal driving mechanism that linearly drives using a trochoidal tooth profile in the process leading to the present invention. ing. The principle of the drive mechanism used here is described in JP-A-5-187502, JP-A-6-174043, JP-A-9-105446, etc. In the industrial robot field, the automatic machine field, etc. Used as a reducer.

  For example, in Japanese Patent Application Laid-Open No. 9-105446, as shown in FIG. 9, when pins 71 are attached along the linear motion body 72 at equal intervals and the eccentric crank 73 connected to the motor makes one rotation, the trochoid A reduction gear is disclosed in which a swing plate 75 having a tooth profile 74 swings once, and a portion of the trochoid tooth profile 74 advances the pin 71 forward at a constant speed by one pitch. That is, this speed reducer has a function as a speed reducer in its operation principle itself, and the linear motion body 72 advances by one pin pitch per one rotation of the motor.

  In order to drive the step chain of the conveyor device based on the principle of the drive mechanism described above, in the conveyor device shown in PCT / JP00-02463, the back chain is supported so that the step chain that is freely bent maintains its shape as a linear motion body. A mechanism is provided.

  A conventional drive mechanism of the type in which the step chain turn-up portion is driven by the main sprocket can be used together with the drive mechanism shown in PCT / JP00-02463 to reduce the burden.

  On the other hand, in recent years, inventions relating to a conveyor device in which a conventional drive mechanism of the type in which a step chain turn-back portion is driven by a main sprocket itself are miniaturized have come to be seen. In order to reduce the size, it is necessary to reduce the diameter of the main sprocket. However, if the number of sprocket teeth is reduced, pulsation appears in the step chain. Therefore, the invention described later is devised to reduce the pulsation.

  For example, as shown in FIG. 10, in the passenger conveyor and the driving device 80 described in Japanese Patent Application Laid-Open No. 2002-114472, a polygon is formed in the middle of the drive system in accordance with the polygon pitch at the main sprocket 82 of the step chain 81. A driven sprocket 83 is provided to intentionally pulsate the rotation of the main sprocket 82 from the drive system, thereby canceling the pulsation generated in the step chain 81 by the pulsation.

  Further, as shown in FIG. 11, in the conveyor drive device 90 described in PCT / EP00-10631, the control device 93 intentionally pulsates the rotation of the main sprocket 92 in accordance with the polygonal pitch of the main sprocket 92. Thus, the pulsation generated in the step chain 91 due to the pulsation is canceled.

  Further, as shown in FIG. 12, in the conveyor drive device 100 described in PCT / JP00-04243, the number of teeth of the small-diameter main sprocket 102 is increased by using a short-pitch step chain 101 to suppress pulsation. However, if the step chain 101 is wound around the small-diameter main sprocket 102 in an arc shape, the steps 103 approach each other and collide with each other. Therefore, an offset link 104 from the step chain 101 is provided at the tip of the step 103 to offset the step tip. Thus, the main sprocket 102 is swung around to avoid interference (collision) between the steps 103.

  However, in the drive mechanism as shown in FIGS. 10 to 12, the pulsation generated in the step chain is suppressed with the downsizing of the main sprocket, but because the main sprockets 82, 92, and 102 having small diameters are used. The meshing distance (substantially half the circumference of the main sprocket) is shortened. Therefore, when the same step chain 81, 91, 101 is used, the number of teeth meshing with the main sprockets 82, 92, 102 is reduced, and the tensile force applied to one tooth is increased, so that teeth are not skipped. The driving force that is allowed to decrease is reduced.

  If the step chain 81, 91, 101 has a short pitch between links, the number of meshing teeth increases. However, in order to maintain sufficient strength, the pin roller is strong and the link chain is thick with a thick link or several on the side. It is necessary to use side-by-side step chains. Therefore, there arises a problem that it is difficult to reduce the width direction dimension of the conveyor device by the amount of using such a step chain.

In addition, there is a problem that it is difficult to keep the width of the drive system and the machine space as they are, as much as the function for suppressing the pulsation generated in the step chain is added. For example, in FIG. 10, it is necessary to provide a slack removing mechanism for the drive system chain 84 in the machine space. In FIG. 11, it is necessary to provide a control device 93 (sensor, inverter) having abundant functions in the machine space so that the rotation of the main sprocket 92 can be pulsated at the same timing. In FIG. 12, in order to suppress the pulsation, it is necessary to shorten the link pitch of the drive system chain (not shown), and the allowable tension equivalent to the step chain is necessary. It is necessary to use a thick chain or a chain with several lines next to it. Further, it is necessary to attach an extra mechanism called the offset link 104 to all the steps 103.
JP 2002-114472 A PCT / EP00-10631 PCT / JP00-04243

  The problem to be solved is that the size and machine space in the width direction of the conveyor device become large when the folded portion of the step chain of the conveyor device is downsized in the depth direction.

  In the present invention, a chain drive mechanism that is provided near the folded portion of the step chain and directly drives the step chain or a portion in the vicinity of the step chain is connected to the rotary drive device attached to the structure and the rotary drive device, An eccentric crankshaft that rotates eccentrically, a plurality of swinging plates that are connected to the eccentric crankshaft and that swings according to the eccentric rotation of the eccentric crankshaft, and the swinging motion of the swinging plate. It is characterized by comprising trochoidal teeth that convert the dynamic motion into the driving force of the step chain.

  According to the present invention, the folded portion can be downsized in the depth direction, and a sufficient number of meshing teeth of the trochoidal teeth of the chain drive mechanism can be secured. In addition, since the chain drive mechanism has a function as a speed reducer, the rotation drive device does not require a speed reducer and is small, and the rotational force transmitted is small, so the rotation transmission device can be made small. The size in the width direction of the conveyor device and the machine space can be reduced.

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

  FIG. 1 is a schematic front view of a chain drive mechanism of a conveyor apparatus according to a first embodiment of the present invention, and FIG. 2 is a schematic plan view of the chain drive mechanism of FIG.

  In the conveyor device 1 of FIG. 1, a step guide rail 2 is provided on a structure 3 such as a truss, and a plurality of steps 4 move along the step guide rail 2. Each step 4 is connected by a step chain 5. The step chain 5 includes a large number of pin rollers 5a that follow the step guide rail 2, and a large number of chain links 5b that connect the pin rollers 5a. The step chain 5 is directly driven by a chain drive mechanism 6 provided in the vicinity of the turn-up portion 1a.

  The chain drive mechanism 6 includes a rotation drive device 7 attached to the structure 3, a rotation transmission mechanism 8 such as a chain or a belt that transmits the output of the rotation drive device 7, and the rotation transmission mechanism 8. And the eccentric crankshafts 10a and 10b that are eccentrically swiveled and rotatably attached to the structure 3, as well as the eccentric crankshaft 9 and the idler. A plurality of oscillating plates 11 that oscillate according to the eccentric rotation of the eccentric crankshafts 10a and 10b, and trochoidal trochoidal teeth 12 that are provided at the ends of the oscillating plates 11 and mesh with the pin rollers 5a of the step chain 5. It is composed of

  The plurality of back support rollers 13 are rotatably attached to the structure 3 so that the rolling surfaces come into contact with the chain links 5 b of the step chain 5 from the side opposite to the swing plate 11. Further, in a portion without the trochoidal teeth 12, the auxiliary guide rail 15 attached to the structure 3 guides the pin roller 5a. As shown in FIG. 2, the eccentric crankshaft 9 and the idler eccentric crankshaft 10a mechanically connect a pair of chain drive mechanisms 6 arranged on the left and right to transmit the rotational force.

  Next, the operation of the conveyor device 1 of the first embodiment will be described. The rotational drive device 7 of the chain drive mechanism 6 provided in the vicinity of the turn-up portion 1 a drives the step chain 5, and a plurality of steps 4 connected by the step chain 5 circulate along the step guide rail 2. The steps 4 are maintained in a predetermined posture by the step guide rails 2 and have a staircase shape continuously arranged at an inclined portion, and move together with the passengers on the steps 4.

  In the chain drive mechanism 6 of the present embodiment, the eccentric crankshaft 9 is eccentrically swung by the rotation drive device 7 attached to the structure 3, and a plurality of swings are performed according to the eccentric rotation of the eccentric crankshaft 9 and the idler eccentric crankshaft 10. The moving plate 11 oscillates, and the trochoidal trochoidal teeth 12 attached to the end of the oscillating plate 11 mesh with the pin roller 5 a of the step chain 5 to drive the step chain 5.

  At this time, the step chain 5 receives force from the trochoidal teeth 12 in a direction orthogonal to the traveling direction, but the plurality of back support rollers 13 are connected to the chain link 5b of the step chain 5 from the side opposite to the swing plate 11. Press while rolling. Further, the auxiliary guide rail 15 guides the pin roller 5a from the swing plate 11 side in a portion where there is no trochoidal tooth 12 driving the pin roller 5a.

  Since the chain drive mechanism 6 has a function as a speed reducer, the torque generated by the rotary drive device 7 may be small, and the torque transmitted by the eccentric crankshaft 9 is small. In addition, since the conventional rotation transmission mechanism needs to transmit a thrust equivalent to that of the step chain 5, it is common to use a chain, a sprocket or a gear. Etc. In addition, if the rotation transmission mechanism 8 is comprised with a chain and a sprocket like the past, a small chain can be used. The rotary drive device 7 is composed of a low-torque and high-speed motor.

  According to such a conveyor device 1, the trochoidal teeth 12 provided at the end of the swing plate 11 are engaged with the pin roller 5 a of the step chain 5 to drive the step chain 5. Even if the size is reduced in the direction (the direction of arrow A in FIG. 1), the number of meshing teeth can be increased regardless of the size.

  In addition, the chain drive mechanism 6 has a function as a speed reducer and can move even if the torque is small. Therefore, the shaft diameter of the eccentric crankshaft 9 can be reduced, and the folded portion 1a can be downsized in the depth direction. can do.

  Moreover, if the rotation transmission mechanism 8 is comprised with a belt, a pulley, etc., the chain drive mechanism 6 can be made quiet.

  Further, when the rotation transmission mechanism 8 is composed of a chain and a sprocket as in the prior art and a small chain is used, the width dimension δ of FIG. 2 can be reduced, so the overall width of the conveyor device 1 is reduced. be able to.

  In addition, since the rotary drive device 7 can be constituted by a small motor that rotates at a high speed with a low torque, the machine space can be reduced.

  Although not related to the present invention, the structure of the guide rail not shown in the folded portion 1a will be described with reference to FIGS. FIG. 3 is a continuous operation diagram of the steps, and FIG. 4 is a cross-sectional view of the main part of the conveyor device 1.

  Since the chain drive mechanism 6 sends the step chain 5 at a constant speed V both on the upper side and the lower side, the trajectories 16 and 17 (indicated by the alternate long and short dash lines) are established geometrically. Here, in order to prevent the steps 4 from approaching and colliding with each other, the step chain 5 is reversed and extended. A normal guide rail can be used on the track 17, but the extended step chain 5 becomes an obstacle on the track 16, so a normal guide rail cannot be used to guide the pin roller 5 a.

  Therefore, as shown in FIG. 4, in addition to a normal guide rail, an auxiliary guide rail 18 fixed to the structure 3 is provided, and an auxiliary roller 19 is provided at a connecting portion between the step 4 and the step chain 5. The auxiliary roller 19 is guided by the auxiliary guide rail 18. Since the step chain 5 bends at the connecting portion with the step 4, it must be supported from the inside of the bent portion. For example, in FIG. 3, in the part 16a where the track 16 is bent outward, it is necessary to guide from outside (lower in the figure) with an auxiliary guide rail (not shown).

  In this embodiment, the auxiliary guide rail 18 of the track 16 and the guide rail (not shown) of the track 17 are fixed to the structure 3. However, it is possible to provide a tension mechanism that pulls in the right direction in FIG. In this way, initial tension can also be applied to the lower trochoidal teeth 12 of the chain drive mechanism 6. For example, if the tension mechanism is set so that this initial tension is half of the load necessary to prevent the step chain 5 from slackening, the lower trochoidal tooth 12 will also bear half the load. No. 5 is prevented, and the number of meshing teeth of the trochoid teeth 12 is increased.

  FIG. 5 is a schematic front view of the chain drive mechanism of the conveyor apparatus according to the second embodiment of the present invention.

  In the conveyor device 21 of FIG. 5, a step guide rail 22 is provided on a structure 23 such as a truss, and a plurality of steps 24 move along the step guide rail 22. Each step 24 is connected by a step chain 25. The step chain 25 includes a large number of pin rollers 25a that follow the step guide rails 22 and a large number of chain links 25b that connect the pin rollers 25a. The step chain 25 is directly driven by a chain drive mechanism 26 provided in the vicinity of the folded portion 21a.

  The chain drive mechanism 26 includes a rotation drive device 27 attached to the structure 23, a rotation transmission mechanism 28 such as a chain or a belt that transmits the output of the rotation drive device 27, and the rotation transmission mechanism 27. Are connected to each other, and eccentric crankshafts 29a and 30b that are eccentrically swiveled and rotatably attached to the structure 23, as well as the eccentric crankshaft 29 and the idler. A plurality of oscillating plates 31 that oscillate according to the eccentric rotation of the eccentric crankshafts 30a and 30b, trochoidal rolling teeth 32 provided at the ends of the oscillating plates 31, and rollers that circulate in a caterpillar shape. A circulating cable 33 attached to the structure 23 is installed along the circulation path of the attached circulating cable 33 and the roller-equipped circulating cable 33. And a le 34.. The roller-equipped circulating cord-like body 33 includes a roller 33 a that meshes with the rolling teeth 32, an external tooth 33 b that meshes with the pin roller 25 a of the step chain 25, and a circulation roller 33 c that follows the circulation rail 34.

  The plan view of the folded portion 21a of the conveyor device 21 as viewed from above is the same as in FIG. 2 and is omitted, but the eccentric crankshaft 29 and the idler eccentric crankshafts 30a and 30b are a pair of chain drive mechanisms arranged on the left and right. 26 are mechanically connected.

  Next, the operation of the conveyor device 21 of the second embodiment will be described. The rotation drive device 27 of the chain drive mechanism 26 provided in the vicinity of the turning portion 21 a drives the step chain 25, and a plurality of steps 24 connected by the step chain 25 circulate along the step guide rail 22. The step 24 is maintained in a predetermined posture by the step guide rail 22 and has a staircase shape continuously arranged at an inclined portion, and moves together with a passenger on the step 24.

  In the chain drive mechanism 26 of the present embodiment, the eccentric crankshaft 29 is eccentrically swung by the rotation drive device 27 attached to the structure 23, and the plurality of rocking plates 31 are swung in accordance with the eccentric rotation of the eccentric crankshaft 29. Exercise. A plurality of trochoidal rolling teeth 32 rotatably attached to the swing plate 31 urges the roller 33a, the circulating cord-like body 33 with the roller circulates in a caterpillar shape, and the outer teeth 33b The step chain 5 is driven by meshing with the pin roller 5a of the step chain 5.

  Since the external teeth 33b engage with the pin roller 25a very deeply, the step chain 25 does not float even without the back support roller 13 as in the first embodiment.

  Here, when the above-mentioned circulating rope-like body 33 with a roller circulates in a caterpillar shape, the circulating roller 33c attached to them follows the circulation rail 34 attached to the structure 33 according to the circulation path. Therefore, the circulating cord-like body 33 with the roller continues a continuous circulating motion. Further, since the chain drive mechanism 6 has a function as a speed reducer, the torque generated by the rotary drive device 27 may be small. If the pitch of the trochoidal rolling teeth 32 is made fine, the eccentric crankshaft Since the torque transmitted at 29 is even smaller than in the first embodiment, the shaft diameter of the eccentric crankshaft 29 can be further reduced.

  Further, since the conventional rotation transmission mechanism needs to transmit a thrust equivalent to that of the step chain, it is common to use a chain, a sprocket or a gear, but the rotation transmission mechanism 28 of the present invention is a belt, a pulley or the like. Can be configured. In addition, if the rotation transmission mechanism 28 is comprised with a chain and a sprocket like the past, an extremely thin chain can be used. Further, the rotation drive device 27 can be constituted by a small motor with low torque and high speed rotation.

  According to such a conveyor device 1, the circulating rope-like body 33 with rollers circulates in a caterpillar shape, and the outer teeth 33 b mesh with the pin rollers 25 a of the step chain 25 to drive the step chain 25. Even if the size of 21a is reduced in the depth direction, the number of meshing teeth can be increased regardless of this.

  Further, the chain drive mechanism 26 has a function as a speed reducer and can reduce the shaft diameter of the eccentric crankshaft 29, so that the folded portion 21a can be downsized in the depth direction.

  Further, if the rotation transmission mechanism 28 is constituted by a belt, a pulley or the like, the chain drive mechanism 26 can be made quiet. In that case, since a thin belt can be used, the rotation transmission mechanism 28 can be reduced in size.

  Further, when the rotation transmission mechanism 28 is configured by a chain and a sprocket as in the conventional case and an extremely thin chain is used, the width of the entire conveyor device 21 can be reduced.

  In addition, since the rotary drive device 27 can be configured with a low-torque, high-speed, miniature motor, machine space can be reduced.

  In addition, since the circulation roller 33c of the circulation cord 33 is guided along the circulation rail 34, there is an advantage that the circulation cord 33 does not rattle and can circulate with a small frictional resistance. .

  FIG. 6 is a schematic front view of the chain drive mechanism of the conveyor apparatus according to the third embodiment of the present invention.

  The chain drive mechanism 46 of the conveyor device 41 in FIG. 6 includes a rotation drive device (not shown) attached to a structure (not shown), and rotation transmission of a chain, a belt, or the like that transmits the output of the rotation drive device. A mechanism 48, an eccentric crankshaft 49 that is connected to the rotational drive device by the rotation transmission mechanism 48, and eccentrically turns, and an idler eccentric crank that is eccentrically turned similarly to the eccentric crankshaft 49 and is rotatably attached to the structure The shafts 50a and 50b, the eccentric crankshaft 49 and the idler eccentric crankshafts 50a and 50b, a plurality of swing plates 51 that swing according to the eccentric rotation, and the end portions of the swing plates 51 are rotatably supported. Along the circulation path of the plurality of rotating rollers 52, the circulating cord-like body 53 with trochoidal inner teeth circulating in a caterpillar shape, and the circulating cord-like body 53 with trochoidal inner teeth. Installed Te, and a rail for circulation 54 which is attached to the structure. The circulating cord-like body 53 with trochoidal inner teeth includes trochoidal inner teeth 53 a that mesh with a plurality of rotating rollers 52, outer teeth 43 b that mesh with pin rollers 45 a of the step chain 45, and a circulating roller 53 c that follows the circulation rail 54. have.

  In this embodiment, the relationship between the trochoidal tooth and the roller meshing with it is reversed, that is, the trochoidal tooth is provided on the circulating cable and the roller is provided on the swing plate. The explanation is omitted because it is the same.

It is a schematic front view of the chain drive mechanism of 1st Example of this invention. It is a schematic plan view of the chain drive mechanism of FIG. It is a continuous operation | movement figure of the step of 1st Example. It is principal part sectional drawing of 1st Example. It is a schematic front view of the chain drive mechanism of 2nd Example of this invention. It is a schematic front view of the chain drive mechanism of 3rd Example of this invention. It is a front view of the conventional conveyor apparatus. It is a schematic block diagram of the chain drive mechanism of the conveyor apparatus of FIG. It is a schematic block diagram of the chain drive mechanism using the conventional trochoid tooth profile. It is a schematic block diagram of the conveyor apparatus of Unexamined-Japanese-Patent No. 2002-114472. It is a schematic block diagram of the conveyor apparatus of PCT / EP00-10631. It is a schematic block diagram of the conveyor apparatus of PCT / JP00-04243.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyor apparatus 1a Folding part 2 Step guide rail 3 Structure 4 Step 5 Step chain 5a Pin roller 6 Chain drive mechanism 7 Rotation drive device 9 Eccentric crankshaft 11 Swing plate 12 Trochoid tooth (trochoid tooth)
DESCRIPTION OF SYMBOLS 21 Conveyor apparatus 21a Folding part 22 Step guide rail 23 Structure 24 Step 25 Step chain 25a Pin roller 26 Chain drive mechanism 27 Rotation drive device 29 Eccentric crankshaft 31 Oscillating plate 32 Rolling teeth (trochoid tooth)
33 Circulation cable with roller (circulation cable)
DESCRIPTION OF SYMBOLS 41 Conveyor apparatus 41a Folding part 45 Step chain 45a Pin roller 46 Chain drive mechanism 49 Eccentric crankshaft 51 Oscillating plate 52 Rotating roller 53 Circulating cord-like body with trochoid internal teeth (circulating cord-like body)
53a Trochoidal internal teeth (trochoidal teeth)
53c Circulation roller 54 Circulation rail

Claims (5)

A step guide rail provided in the structure;
A plurality of steps moving along the step guide rail;
A step chain having a pin roller that follows the step guide rail and connecting the plurality of steps;
A chain drive mechanism provided near the folded portion of the step chain and directly driving the step chain or a portion in the vicinity of the step chain;
Have
The chain drive mechanism is
A rotational drive attached to the structure;
An eccentric crankshaft connected to the rotational drive device and rotating eccentrically;
A plurality of oscillating plates connected to the eccentric crankshaft and oscillating according to the eccentric rotation of the eccentric crankshaft;
A trochoidal tooth that is related to the rocking motion of the rocking plate and converts the rocking motion into the driving force of the step chain;
Conveyor device characterized by comprising.   The conveyor apparatus according to claim 1, wherein the trochoidal teeth are provided on the swing plate and mesh with the pin rollers. A plurality of rotating rollers rotatably supported by the swing plate;
The trochoidal teeth that mesh with the plurality of rotating rollers are formed on the inside, the teeth that mesh with the pin rollers are formed on the outside, and a circulating cord-like body that circulates in a caterpillar shape;
The conveyor apparatus according to claim 1, further comprising: The trochoidal tooth is rotatably attached to the end of the swing plate;
2. The conveyor apparatus according to claim 1, further comprising a circulating cord-like body that has a roller that meshes with the trochoidal teeth and that has teeth that mesh with the pin roller and circulates in a caterpillar shape. A circulation rail installed along the circulation path of the circulation cable and attached to the structure;
A circulation roller attached to the circulation cable and following the circulation rail;
The conveyor device according to claim 3, wherein the conveyor device is provided.

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