JP2004189416A - Conveyer belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyor belt which eliminates any toppling accident of works caused by breakage of the conveyor belt by projection of a connection pin from a side surface of a module link and irregularity of a mounting surface, and performs reliable carriage. <P>SOLUTION: The conveyor belt comprises a resin module link (11) with a large number of connection bush parts (14 and 15) protruded forwardly and backwardly in the belt traveling direction disposed in a staggered manner in the belt width direction, and a connection pin 18 to connect the rear connection bush part to the forward connection bush part in a finger-crossing manner. A large number of longitudinal ribs (24 and 25) extending parallel to each other along the belt traveling direction and a large number of transverse ribs (26) continuously provided between adjacent longitudinal ribs orthogonal to the belt traveling direction. Engagement recessed parts which are surrounded by the longitudinal ribs, the transverse ribs and the connection bush parts to engage sprocket teeth are arrayed in the belt width direction on the back side of a slat part. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a conveyor belt, and more particularly, to an improvement in a conveyor belt configured by connecting a plurality of module links with pins.
[0002]
[Prior art]
Conventionally, this type of conveyor belt includes a plurality of module links that are arranged adjacently and pin-connected, and includes a belt that travels in a direction that intersects the connecting direction of the connecting pins (for example, Patent Document 1 and Patent Document 1). Reference 2).
[0003]
The module link constituting such a belt is configured as shown in FIG. 6, for example. The module link 51 has a slat portion 52. One side of the slat portion 52 is a mounting surface 53 for a transported object. As shown in FIG. 6, a plurality of connecting bush portions 54 are integrally provided on the back surface of the slat portion 52, and a plurality of connecting bush portions 55 are provided on the rear side. The connecting bush portions 54 are arranged at intervals from each other, and the connecting bush portions 55 are arranged in a staggered manner so as to be located between the two connecting bush portions 54. Each connecting bush part 54, 55 is provided with a pin hole.
[0004]
The module link 51 is formed, for example, in a finger-assembly manner by connecting the connecting bush portion 54 between the connecting bush portions 55 of the adjacent module link in the front and connecting the bush portion 55 between the connecting bush portions 54 of the adjacent module link in the rear. The belts are combined and connected by connecting pins inserted into pin holes in respective connecting bush portions to form an endless belt.
[0005]
Driving is performed, for example, by fitting the teeth of the sprocket into a meshing recess formed between the connecting bush portion 54 and the connecting bush portion 54 of the adjacent module link rearward, and rotating the sprocket. The transported object is placed on the mounting surface 53 of each module link, and is moved from the mounting location to a predetermined location by the rotation of the belt.
[0006]
[Patent Document 1]
Japanese Utility Model Registration No. 2551150
[Patent Document 2]
JP 2000-250227 A
[Problems to be solved by the invention]
However, such a conveyor belt may cause the belt to be cut or the conveyed object to fall.
[0009]
In the conventional conveyor belt, the connecting bush portion 54 and two adjacent connecting bush portions 55 are connected by rib portions 56 and 57. The rib portion 56 connects one end of the connection bush portion 54 to one end of the connection bush portion 55, and the rib portion 57 is connected to one end of the connection bush portion 54 and the connection bush portion 55 adjacent to the connection bush portion 54 via a space. Connected to the other end. The rib portions 56 and 57 are inclined from the front to the rear of the module link because the connection bush portions 54 and 55 are shifted from each other in the width direction of the module link. For this reason, when the module link travels, for example, in the downward direction in FIG. 7 and the teeth of the sprocket press the connecting bush portion 54, a tensile load indicated by an arrow T1 acts on the connecting bush portion 54, and at the same time, a tensile load indicated by an arrow T2. Acts on the connecting bush portion 55 and the ribs 56 and 57 are twisted by the component force of the tensile load as shown by arrows B1 and B2, so that the region 58 sandwiched between the ribs 56 and 57 in the slat portion 52 is indicated by arrow C. As shown in the drawing, the width of the region 58 sandwiched by the ribs 56 and 57 changes in a direction to decrease, and the overall width of the module link 51 decreases. As a result, the end of the connection pin projects from the side surface of the module link 51. If the protruding portion is caught by a guide member of the conveyor belt, an excessive load is applied to the module link 51, and the module link 51 and / or the connecting pin may be damaged, that is, the conveyor belt may be cut.
[0010]
Further, the region 58 sandwiched between the ribs 56 and 27 in the slat portion 52 is curved as shown in FIG. The mounting surface 53 becomes uneven due to this curvature, and there is a possibility that the transported object on the mounting surface may fall.
[0011]
An object of the present invention is to eliminate a conveyor belt cutout based on the protrusion of a connecting pin from a module link side surface, eliminate a fall-off accident of a conveyed object due to unevenness of a mounting surface, and perform more highly reliable conveyance. To provide a conveyor belt.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the conveyor belt of the present invention comprises a plurality of connecting bush portions projecting forward and rearward in the belt running direction through slat portions extending in the belt width direction. A resin bush link arranged in a zigzag pattern, a connecting bush portion disposed behind the preceding resin module link, and a connecting bush portion disposed in front of the succeeding resin module link. In a conveyor belt knitted endlessly with connecting pins connected in a shape, the connecting bush portion arranged in front of the slat portion and the connecting bush portion arranged in the rear are parallel along the belt running direction. Along with a number of vertical ribs extending in between, between the vertical ribs adjacent in the belt width direction orthogonal to the belt running direction of the resin module link. A plurality of horizontal ribs provided, and meshing concave portions for meshing sprocket teeth surrounded by the vertical ribs, the horizontal ribs, and the connecting bush portion are arranged and formed in the belt width direction on the back side of the slat portion. It is characterized by.
[0013]
[Action]
In the conveyor belt of the present invention, a number of connecting bush portions projecting forward and rearward in the belt running direction via slat portions extending in the belt width direction are arranged in a staggered manner across the belt width direction. A resin-made module link and a connection pin that connects the connection bush portion disposed behind the preceding resin-made module link and the connection bush portion disposed in front of the succeeding resin-made module link in a finger-like manner are endless. In a conveyor belt knitted in a shape, a number of longitudinal ribs extending in parallel along the belt running direction between a connecting bush portion disposed in front of the slat portion and a connecting bush portion disposed in a rear portion of the conveyor belt And a number of horizontal ribs provided between the longitudinal ribs adjacent in the belt width direction orthogonal to the belt running direction of the resin module link. Since the engagement recesses which are surrounded by the vertical ribs, the horizontal ribs, and the connecting bush portion and which engage the teeth of the sprocket are formed on the back side of the slat portion in the belt width direction, for example, the sprocket of the drive shaft is endless. The sprocket on the driven shaft meshes with all or a part of the meshing concave portion of the resin module link at the other end, and the connecting bushing engages with part or all of the meshing concave portion of the synthetic resin module link at one end of the belt. The portion receives the load from the driving sprocket, and the lateral rib of the resin module link at the other end receives the load from the driven sprocket. The entire resin module link is reinforced by horizontal ribs, vertical ribs and connecting bush parts, and the mechanical strength of the resin module link is extremely high, so that even if the belt receives a tensile load by the driving sprocket and the driven sprocket. Since the width reduction of the slat portion of each resin module link is extremely small, the connecting pin does not protrude from the belt end, and the mounting surface of the resin module link does not have irregularities.
[0014]
In the conveyor belt of the present invention, when the lateral ribs have the meshing surface corresponding to the tooth surface shape of the sprocket, the teeth of the driven sprocket slidably contact the meshing surface, so that these can be smoothly meshed. .
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the conveyor belt of the present invention will be described below with reference to FIGS.
[0016]
This conveyor belt includes a belt 10 in which a plurality of module links 11 are connected. The belt 10 has an endless form, and loop portions at both ends are wound around a sprocket, and the belt 10 can travel in the direction of the arrow A by rotation of the sprocket on the driving side.
[0017]
Each module link 11 has a slat portion 12, a number of connecting bush portions 14, and a number of connecting bush portions 15, and is made of an injection molded product of a resin such as engineering plastic.
[0018]
The slat portion 12 is formed in a plate shape and has a flat mounting surface 13 on the upper surface as one surface. The connection bush portions 14 and 15 are provided on the lower surface opposite to the slat portion 12 so as to project forward and rearward of the slat portion 12 and to be staggered in the belt width direction. That is, the connection bush portions 14 are formed at a fixed interval, protrude forward of the slat portion 12 and are formed integrally with the slat portion 11, the connection bush portions 15 are formed at a fixed interval from each other, and between the connection bush portions 14. And protrudes rearward of the slat portion 12. Each of the connecting bush portions 14 and 15 has a cylindrical side surface, and is provided with pin holes 16 and 17 therethrough. The cylindrical surfaces of these connecting bush portions 14 and 15 are connected to the mounting surface 13 of the slat portion 12 to form an extension of the mounting surface 13.
[0019]
The module link 11 combines the connecting bush portions 14 and 15 with the connecting bush 15 of the adjacent module link 11 in a finger-set manner, and is connected by connecting pins 18 to form an endless belt. More specifically, the connecting bush portion 14 is fitted between the connecting bush portions 15 of the adjacent module link at the front, and the connecting bush portion 15 is fitted between the connecting bush portions 14 of the adjacent module link at the rear. The connecting pin 18 is inserted into the pin hole 16 of the connecting portion 14 and the pin hole 17 of the connecting bush portion 15 of the adjacent module link in the front, and the pin hole 17 of the connecting bush portion 15 and the connecting bush portion 14 of the adjacent module link in the rear. The endless belt 10 is formed in the module link 11 by inserting the connecting pin 18 into the pin hole 16.
[0020]
The connection pin 18 is prevented from coming out of the belt 10 by the snap attachment 19. The snap attachment 19 is inserted into a slit 21 provided on the lower surface of the connecting bush portion 15 on both sides of the link module 11 traversing the pin hole 16 at right angles, similarly to this known type. It has a positioning part 22 held by the bush part 15 and a pin holding part 23 located in the pin hole 16. The pin holding portion 23 contacts the end of the connecting pin 18 to prevent the connecting pin 18 from coming off.
[0021]
Further, a rib portion is provided between the connection bush portion 14 and the connection bush portion 15, and the connection bush portion 14 and the connection bush portion 15 are connected by the rib portion.
[0022]
The rib portion includes vertical ribs 24 and 25 and a horizontal rib 26 as shown in FIG. One end of the connection bush portion 14 is connected to one end of the connection bush portion 15 by a vertical rib 24, and the other end of the connection bush portion 14 is connected by a vertical rib 25 to a connection bush portion adjacent to the connection bush portion 15 (for distinction, 2, and the other end of the adjacent bush portion 15 'is connected by a vertical rib 24 to a bush portion adjacent to the connecting bush portion 14 (to be distinguished by reference numeral in FIG. 2). 14 '). The vertical rib 24 and the adjacent vertical rib 25 are connected to the space side end between the connecting bush portions 15 (15 ') by the horizontal rib 26, and the vertical rib 25 and the adjacent vertical rib 24 are connected. The space side ends between the bush portions 14 (14 ') are connected by horizontal ribs 26. The remaining connecting bush portions 14 and 15 are similarly connected by the vertical ribs 24 and 25 and the horizontal rib 26.
[0023]
The vertical rib 24 has a narrow portion extending from one end of the connecting bush portion 14 toward the connecting bush portion 15, a narrow portion extending from one end of the connecting bush portion 15 toward the connecting bush portion 14, and free portions of these portions. It consists of a wide part connecting the ends. The narrow width portion and the wide width portion are in the form of a plane parallel plate, and are arranged parallel to the running direction of the belt 10 indicated by the arrow A. The vertical rib 25 connects the free ends of the narrow portion extending from the other end of the connecting bush portion 14 toward the connecting bush portion 15, the narrow portion extending forward from one end of the connecting bush portion 15, and these free ends. It consists of a wide part. The narrow width portion and the wide width portion also take the form of a plane parallel plate, and are arranged parallel to the running direction of the belt 10.
[0024]
The horizontal ribs 26 are arranged at right angles to the vertical ribs 24, 25, that is, at right angles to the running direction of the belt 10, and both ends are connected to the front ends of the wide portions of the vertical ribs 24, 25. Therefore, the horizontal ribs 26 form a lattice with the vertical ribs 24 and 25 and the connecting bush portion 15.
[0025]
Further, as shown in FIGS. 3 and 4, the outer side surface 27 of each lateral rib 26 has a curved surface corresponding to the connecting bush portion 15 of the adjacent module link 11 located rearward or forward. The surface of the slat portion 11 connected to the lateral rib 26 at the trailing edge or the leading edge is formed into a curved surface that is continuous with the outer surface 27. Therefore, even if the module link 11 is bent around the connecting pin 18, A gap is not generated between adjacent module links.
[0026]
Further, in this conveyor belt, the inner side surface 28 of the lateral rib 26 is formed in a shape corresponding to the tooth side surface of the sprocket that drives the belt 10, as shown in FIGS. In this conveyor device, the sprocket 31 on the driven side and the driven side has, for example, as shown in FIG. 5, the side surfaces of the teeth 32 are flat slopes, so that the inner side surface 28 of the lateral rib 26 corresponds to the tooth side surface of the sprocket 31. And is formed on a flat slope. For this reason, the cross section of the lateral rib 26 is formed in a triangular shape with the vertex directed downward, in combination with the fact that the outer surface 27 is formed into a curved surface corresponding to the connecting bush portion 15 of the adjacent module link 11 located at the rear. Has made.
[0027]
The belt 10 is run by rotating a drive shaft. The drive shaft and the driven shaft consist of a number of sprockets arranged coaxially. The teeth of each sprocket are fitted into a mating recess 33 formed by the connecting bush portions 14, 15, the vertical ribs 24, 25, the horizontal rib 26, and the connecting bush portion 15. Since the sprockets form a space and are coaxially arranged on the shaft, only the meshing recesses 33 corresponding to the teeth of the sprocket mesh with the teeth of the sprocket.
[0028]
A conveyed object, for example, a plastic bottle is placed on the mounting surface 13 of each module link 11 constituting the endless belt 10. When the drive shaft is rotated by an electric motor or the like, the teeth of the sprocket are pressed against the connecting bush portion 15 and the belt 10 is rotated, and the belt 10 travels in the direction indicated by the arrow A in FIGS. A conveyed object such as an upper plastic bottle is transferred.
[0029]
When the belt rotates, the sprocket teeth of the drive shaft are pressed against the connecting bush portion 14 of the module link 11 forming one loop, and the sprocket teeth of the driven shaft are pressed against the lateral rib 26 of the module link forming the other loop. The load from these sprockets is transmitted to the vertical ribs 24 and 25. At this time, in the conveyor belt according to the present invention, the vertical ribs 24 and 25 extend in parallel to the running direction of the belt 10, and only the tensile load acts on the vertical ribs 24 and 25. Since the rib 25 forms a lattice with the connecting bush part 15 on the entire lower surface of the module link 11 to increase the mechanical strength of the module link 11, the rib 25 is sandwiched between the vertical ribs 24 and 25 in the slat part 12. The area 29 does not deform. As a result, the transport surface formed on the belt 10 by the mounting surface 13 is always kept flat, and a transported object such as a PET bottle can be transported without falling over.
[0030]
Further, in the conveyor belt according to the present invention, the vertical ribs 24, 25, the horizontal ribs 26, and the connecting bush portion 15 form a lattice, and the mechanical strength of the module link 11 is high, and the slat portion 12 is not easily deformed. The deformation of the link 11 is reduced, so that the connecting pin 18 reliably stays inside the connecting bush portions 14 and 15 and does not project from the side surface of the module link 11. Accordingly, the belt 10 is not cut off due to the breakage of the module link 11 and / or the connection pin 18.
[0031]
Further, as shown in FIG. 5, when the belt 10 travels in the direction shown by the arrow A also on the driven shaft, the inner side surface 28 of the lateral rib 26 has a shape corresponding to the side surface of the tooth 32 of the sprocket 31 on the driven side. Since it is the formed meshing surface with the teeth 32 of the sprocket 31, the side surfaces of the teeth 32 of the sprocket 31 and the lateral rib 26 smoothly contact and slide.
[0032]
Furthermore, since the vertical ribs 24 and 25 are parallel to the running direction of the belt 10, that is, parallel to the side surface of the sprocket 31, and the belt 10 runs using the sprocket 31 as a guide, the belt 10 Does not move sideways, and the transport state is extremely stable.
[0033]
The vertical ribs 24, 25 are formed in parallel with the vertical ribs 24, 25 of the adjacent module link 11, and when the module link 11 bends with respect to the adjacent module link, the vertical ribs 24, 25 are connected to the adjacent module link. Since the module link 11 does not interfere with these 24 and 25, the module link can always be reliably bent.
[0034]
【The invention's effect】
As described above, in the conveyor belt of the present invention, a large number of connecting bush portions projecting forward and rearward in the belt running direction via the slat portions extending in the belt width direction are provided in the belt width direction. The resin module links arranged in a zigzag pattern, the connecting bush portion disposed behind the preceding resin module link, and the connecting bush portion disposed in front of the succeeding resin module link are formed into a finger-set shape. In a conveyor belt knitted endlessly with a connecting pin to be connected, a conveyor bush portion disposed in front of the slat portion and a connecting bush portion disposed behind the slat portion extend in parallel along the belt running direction. A plurality of longitudinal ribs provided, and a plurality of longitudinal ribs connected in a belt width direction orthogonal to a belt running direction of the resin module link are provided between each other. An interlocking recess, which is provided with a lateral rib, is surrounded by the vertical rib, the lateral rib, and the connecting bush portion, and meshes with the teeth of the sprocket, is arranged behind the slat portion in the belt width direction. A part or all of the meshing concave portion of the synthetic resin module link at one end of the endless belt, the sprocket on the driven shaft meshes with all or a part of the meshing concave portion of the resin module link at the other end, The connecting bush portion receives the load from the drive side sprocket, and the lateral rib of the resin module link at the other end receives the load from the driven side sprocket. Reinforced by the connecting bush part, the mechanical strength of the resin module link is extremely high, and the belt is Even when subjected to tensile load by moving sprocket, the width reduction of the slat portions of each of the resin module links Kiwameku connecting pin does not protrude from the belt end portion, moreover mounting surface of the resin module links do not uneven. For this reason, the conveyor belt is not cut due to the jumping out of the connecting pins, and the transported object does not fall over due to the unevenness of the mounting surface, so that more reliable transport can be performed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing one embodiment of a conveyor belt of the present invention.
FIG. 2 is a bottom view of a module link constituting the conveyor belt shown in FIG.
FIG. 3 is an enlarged sectional view of a module link taken along line 3-3 in FIG. 2;
FIG. 4 is an enlarged cross-sectional view of the module link taken along line 4-4 in FIG. 2;
FIG. 5 is an explanatory view showing a meshing state between the conveyor belt shown in FIG. 1 and a sprocket for guiding the conveyor belt.
FIG. 6 is a plan view showing an example of a conventional conveyor belt and showing an example of a module link constituting the conveyor belt.
FIG. 7 is a bottom view of the module link shown in FIG. 6;
8 is a diagram illustrating a state where a load is applied to a module link of the conveyor belt illustrated in FIG. 6;
FIG. 9 is an explanatory diagram showing a deformed state of the module link shown in FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Belt 11 ... Resin module link 12 ... Slat part 13 ... Conveyed object mounting surface 14, 15 ... Connection bush part 16, 17 ... Pin hole 18 ... Connection pin 24, 25 ... Vertical rib 26 ... Horizontal rib 31 ... Sprocket 32 ... sprocket teeth 33 ... meshing recess

Claims (2)

A resin module link in which a number of connecting bush portions projecting forward and rearward in the belt running direction via slat portions extending in the belt width direction are arranged in a staggered manner across the belt width direction; A conveyor knitted endlessly with a connecting pin that connects a connecting bush portion disposed behind a preceding resin module link and a connecting bush portion disposed forward of a succeeding resin module link in a finger-assembly shape. In the belt,
A plurality of vertical ribs extending in parallel along the belt running direction between the connecting bush portion disposed in front of the slat portion and the connecting bush portion disposed in the rear, and the resin module A plurality of horizontal ribs are provided continuously between the vertical ribs adjacent in a belt width direction orthogonal to a belt running direction of a link,
A conveyor belt, wherein meshing concave portions, which are surrounded by the vertical ribs, the horizontal ribs, and the connecting bush portion and engage the teeth of the sprocket, are arranged in the belt width direction on the back side of the slat portion. The conveyor belt according to claim 1, wherein the lateral rib has an engagement surface corresponding to a tooth surface shape of a sprocket.

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