JPH11278622A - Roller conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller conveyor for production line capable of improving degree of freedom in the operation for carrying works in double ways at the same time, for collecting, separating and inclining them, and capable of easily controlling the carrying speed, facilitating the manufacture and assemble of the conveyor, quickly and securely checking the conveyor, and reducing the thickness of the conveyor for miniaturization. SOLUTION: This conveyor is formed of a rotary passive parts arranged in a side end of multiple rotary shafts 1 for supporting each roller 3 and fitted to a frame 2, a motor M, and a common endless rope-like part provided in the longitudinal direction X of a conveyor C while engaged with a desirable part of the periphery of the rotary passive part. With this structure, driving force of the motor M rotates the rotary shafts through the rotary passive parts and the rope-like part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller conveyor for use in, for example, a production line and the like. In addition, the manufacture and assembly of the conveyor is easy, maintenance and inspection can be performed quickly and reliably, and further, the conveyor is made thinner and more compact.

[0002]

2. Description of the Related Art Conventionally, for example, a production line, an assembly line,
2. Description of the Related Art For example, a roller conveyor is used to transport articles on an inspection line or the like. In this roller conveyor, the conveyor is inclined to transport the articles without using a motor as a driving source, and the articles are transported by dropping due to the inclination. However, this type of roller conveyor could not control the moving speed of the articles other than changing the inclination angle gently or steeply. Further, examples of a roller conveyor of a type in which a rotating shaft supporting a roller is rotated by using a motor as a driving source include those shown in FIGS. 15 and 16. This roller conveyer is provided with a sprocket d at one end of a number of rotating shafts c rotatably mounted on an opposing frame b on which rollers a are inserted, and a motor provided on the sprocket d below the frame b. M '
The endless chain e that rotates passively with the rotational force is wound to include sprockets d, d arranged at the start end (left end in FIG. 15) and the end end (right end in FIG. 15). multiple sprocket d provided in the middle, meshing a chain e as d ... at least the upper side outer circumferential d ₁ and the lower side endless string-like part of the outer periphery d ₂ of the. In order to transmit the driving force of the motor M 'to the starting or ending rotating shaft c, for example, a motor shaft m' having a sprocket d "of the motor M 'is used.
In addition to using a sprocket d 'mounted on the rotating shaft c located at the start end side in FIG. 15 and a chain e' as an endless string-like part wound around the sprocket d ', A belt wound around this belt wheel is used. When the motor M 'is rotated to rotate the sprocket d' via the chain e 'and the sprocket d provided coaxially with the sprocket d', all of the sprocket d including the sprocket d via the chain e 'is rotated. The sprockets d, d... Are passively rotated by the driving force from the motor M '. For this reason, since the rotating shaft c is rotated integrally with the roller a, the article F placed on the roller a is
Is transported on the conveyor from the upstream side (left side in FIGS. 15 and 16) to the downstream side (right side in FIGS. 15 and 16).

[0003]

However, FIG.
The conventional roller conveyor shown in FIG. 16 conveys an article F from an upstream side to a downstream side on a single conveyor, and conveys the article F only from the upstream side to the downstream side in the same direction. It is just done. For this reason, it is not necessary to convey the articles F in the same direction on a single conveyor, of course, there is no freedom to convey the articles F in two directions, and the articles F are collected and separated or even skewed.
In order to use the combination of transporting the production line, the production line and the like become large-scale and complicated, and the laying of the line requires a large area. Further, in the conventional conveyor described above, when the articles F are transported for use in product management or product processing, a plurality of the articles F are transported at the same speed on the roller a at a time, so that the inspection fails. Controlling the transport speed of the article F to remove the article F, perform the necessary processing work on the article F, and temporarily stop the article F required for processing without stopping the operation of the conveyor. Could not. If the article F is stopped, there is an inconvenience that the article F preceding the succeeding article F is pressed and deformed or damaged, or the article F is confused by being inclined. The conventional roller conveyor shown in FIGS. 15 and 16 has a driving mechanism for rotating and driving a plurality of rotating shafts c mounted on a frame b.
The driving force of the motor M 'arranged on the lower surface of the chain e'
The rotation of the motor M 'is transmitted to any of the rotation shafts c (the rotation shaft c on the starting end side in FIGS. 15 and 16) by using the power transmission parts of the motor M' and the sprockets d 'and d ". Then, all the rotating shafts c are rotated through an endless chain e wound around a number of sprockets d including a sprocket d mounted coaxially with the sprocket d 'at one end of the rotating shafts c. Since the drive mechanism for rotationally driving the rotating shaft c is provided entirely below the frame b, the height h 'of the table of the conveyor is increased, and other machines such as an article alignment device are used. There are certain restrictions when assembling the conveyor to the conveyor.Moreover, the height h 'to the table of the conveyor is high, so that it is necessary to work from the conveyor to perform product processing and product management on articles. Distance of up to under the eyes is reduced,
Inspection work and processing work for articles were difficult, and work efficiency was poor.

The present invention solves the above-mentioned disadvantages of the prior art, and conveys articles on a single conveyor not only in the same direction but also in both directions, as well as collecting, separating, and skewing conveyors. It has a high degree of freedom in combination use, and does not increase the scale of the line itself, occupies a large area for laying, is easy to control the conveying speed of articles, is easy to manufacture and assemble conveyors, It can be shared, and maintenance and inspection can be performed easily and reliably, and furthermore, the conveyor is made thinner and more compact, so that it is easy to assemble it with other machines. Try to provide an improved roller conveyor.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a first aspect of the present invention is directed to a plurality of rotation shafts which support rollers and are rotatably mounted on a frame, and a predetermined number of rotation shafts are provided at side ends of the rotation shafts. A rotating passive component mounted in an array, a motor as a driving source, and a driving force of the motor rotated by the driving force of the motor and engaged with a part of a desired number of outer peripheries of the rotating passive component; And a common endless string-shaped part provided along the longitudinal direction of the conveyor without rotating the rotating shaft through the rotating passive part.

According to a second aspect of the present invention, in the first aspect, the rotary passive component is mounted on at least one side of a rotary shaft, and has an endless outer peripheral portion on an upper outer periphery or a lower outer peripheral portion of the rotary passive component. The above-mentioned string-shaped component is engaged so that a rotating shaft adjacent in the longitudinal direction is rotated in the same direction.

According to a third aspect of the present invention, in the first aspect, the rotary passive component is mounted on at least one side of a rotary shaft, and is provided on an upper outer circumference or a lower outer circumference of an adjacent rotary passive component. Means is adopted in which the endless string-shaped parts are alternately engaged to rotate the rotating shafts adjacent in the longitudinal direction in mutually different directions.

According to a fourth aspect of the present invention, the first rotary shaft and the second rotary shaft mounted in the longitudinal direction adjacent to the start end or the end side of the conveyor according to any one of the first and second aspects.
The endless string-shaped part rotated by the driving force of the motor is alternately wound around the upper outer periphery or the lower outer periphery of the first rotary passive component mounted on the rotating shaft, and the third and subsequent subsequent components are rotated. The rotating shaft is used for transmitting power between the second rotary passive components mounted in a desired arrangement every odd number or even number and the third rotary passive components mounted coaxially with the second rotary passive component. Means for winding each of the second and third rotary passive components.

According to a fifth aspect of the present invention, there are provided a plurality of rotating shafts rotatably mounted on a frame and supporting rollers, and a first rotating passive member mounted on one end of the rotating shafts in a predetermined arrangement. Parts, a motor as a drive source, and alternately engaging the outer periphery on the upper side and the outer periphery on the lower side of the rotary passive component by a predetermined number every time, so that the driving force of the motor is applied to the first rotary passive component. A first string-shaped component that is provided rotatably in a direction opposite to the rotating shaft through the conveyor and that is provided along the longitudinal direction of the conveyor and has a common endless shape; A fourth rotating passive component mounted on the other end of the remaining rotating shafts provided in a desired arrangement between the rotating shafts, and a fourth rotating passive component from an upper outer periphery of the first rotating passive component to a lower rotating passive component. The first said cord-like shape from the outer circumference or from the lower outer circumference to the upper outer circumference A rotary drive component provided at the other end of the rotary shaft arranged at the direction change position at which the product is wound, and a motor which is wound between the rotary drive component and the fourth rotary passive component. A second string-like component for transmitting power is used, and a means is adopted in which articles can be conveyed bidirectionally on a single conveyor.

According to a sixth aspect of the present invention, in the fifth aspect, the rotating shaft provided with the first rotary passive component at one end is provided with a rotating shaft rotating in the same direction and a rotating shaft rotating in a different direction. The two rotating shafts of the same direction and the different direction are provided adjacent to each other in the longitudinal direction of the conveyer. Further, a means is adopted in which the remaining rotary shaft provided with the fourth rotary passive component at the other end is rotatably arranged in the opposite direction.

According to a seventh aspect of the present invention, in any one of the first, second, third, fourth and fifth aspects, the rotary passive component or the rotary drive component is a belt wheel. The belt-shaped part is a timing belt formed on the inner circumference or the inner circumference and the outer circumference of the toothed portion meshed with the belt wheel, or the rotary passive component or the rotary drive component is a sprocket, The endless string-shaped part is a chain that meshes with the sprocket, or the rotating passive part or the rotating drive part is a belt wheel, and the endless string-shaped part is wound around the belt wheel. Or a means of being a round belt or a V belt.

[0014] According to an eighth aspect of the present invention, there is provided a rotary passive component or a rotary drive component mounted on a rotary shaft according to any one of the first, second, third, fourth, and fifth aspects. Are formed in several kinds having different diameters, and by selecting and using a rotating passive part or a rotating driving part having a different diameter, the outer peripheral engaging dimension of the rotating passive part with respect to the endless string-like part is adjusted. Means that the peripheral speed can be controlled and provided in a desired arrangement is adopted.

According to a ninth aspect of the present invention, in any one of the first and second aspects, a single conveyor is divided into several regions in a longitudinal direction, and the region is provided with a rotating shaft rotatable in the same direction. Was adopted.

According to a tenth aspect of the present invention, in any one of the first, third, and fifth aspects, a single conveyor is divided into several regions in the width direction, and the adjacent region in the width direction is Means is adopted in which the rotating shafts are provided so as to be rotatable in mutually opposite directions.

According to claim 11 of the present invention, in any one of claims 1, 2, 3, and 5, a single conveyor is divided into several regions in the longitudinal direction, and the region is rotated. The shaft is rotated in the same direction or rotatably provided in the opposite direction, and a single conveyor is divided into several regions in the width direction, and the rotation shaft is rotatable in the same direction in the adjacent region in the width direction. Means that are provided or rotatably provided in opposite directions are employed.

According to a twelfth aspect of the present invention, in any one of the first and fifth aspects, the roller is loosely inserted into the rotating shaft, and the roller is rotated by friction and engagement of the roller with the rotating shaft. Adopted.

According to a thirteenth aspect of the present invention, there is provided the means according to any one of the first and fifth aspects, wherein the roller is fitted to the rotating shaft.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific example of an embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 8 show a first embodiment of the present invention applied to a bidirectional conveyor C for carrying articles F in both directions. Reference numeral 1 denotes a number of rotating shafts which are rotatably attached to the opposite frame 2 in the longitudinal direction X. The rotating shaft 1 supports rollers 3. The rotating shaft 1 is formed in a rod shape from a metal such as stainless steel.

In this embodiment, the frame 2 is divided into several regions in the width direction Y of a single conveyor C, for example, three regions K ₁ , K ₂ and K ₃ in FIGS. 3 and 4. in this way,
Three regions K ₁ , adjacent to each other in the width direction Y,
K ₂ and K ₃ are provided such that the rotating shaft 1 is rotatable in mutually opposite directions adjacent to each other along the longitudinal direction X. The frame 2 is formed by arranging a pair of left and right wall components 2A, 2A so as to face each other. The height h of the wall components 2A, 2A is formed as a thin shape of about 120 mm in this embodiment. Is done.

The roller 3 is made of synthetic resin.
You. 3 and 4, for example, the axial direction of the rotating shaft 1.
Many divided into short cylinders in J are divided into three areas
K₁, K_Two, K_ThreeRespectively supported. But
The illustrated roller 3 is an example, and
It is formed in a long cylindrical shape in the axial direction J of the rotating shaft 1 without limitation.
Sometimes things are used. And this roller 3
The sequence is 3 regions K₁, K_Two, K _ThreeOnly for what
Many divided rollers 3 are attached to the rotating shaft 1.
Have been. In this embodiment, the roller 3 is attached to the rotating shaft 1.
In order to open the roller 3, as shown in FIG.
The roller 3 is rotated by inserting the rotating shaft 1 into the
Is rotated by the friction and the engagement with, and conveys the article F.
It has become. However, this is a representative example.
6, the roller 3 is inserted into the rotating shaft 1 as shown in FIG.
In some cases, it may be attached.

Reference numeral 4 denotes a belt wheel as a rotary passive component mounted on the side end of the rotary shaft 1 in a predetermined arrangement. The belt wheel 4 is rotated by passively receiving the driving force of a motor M as a driving source. Thus, the rotating shaft 1 is rotated. In this embodiment, the belt wheel 4 has a toothed portion formed on the entire outer periphery, and as shown in FIGS. 1 and 2, one of the rotating shafts 1 arranged at substantially equal pitches in the longitudinal direction X of the frame 2. A belt wheel 4 is provided at the side end.

Reference numeral 5 denotes a timing belt as an endless string-like component provided along the longitudinal direction X of the conveyor C. The timing belt 5 is formed of a flexible material such as rubber or synthetic resin. You. The timing belt 5 is formed so as to exhibit strength against tension, compression, and the like by embedding a desired number of linear materials such as metal and carbon. The inner circumference and the outer circumference of the timing belt 5 are meshed with the outer circumference of a part of the desired number of the pulleys 4, that is, the upper toothed portion 4a or the lower toothed portion 4b. The double cog belt type in which the tooth portions 5a and 5b are formed as shown in FIGS. 7 and 8 is used to alternately wind a number of rotating shafts 1 from top to bottom or from bottom to top. The winding operation is performed in a different direction, and the idler belt wheels 6a, 6b, 6c, and 6d are installed at different locations, and the winding operation of the driving belt wheel 7 is performed quickly, reliably, and efficiently. And can be shared as one endless string-shaped part. Further, in this embodiment, as shown in FIGS. 1 and 2, the timing belt 5 is provided with a toothed portion 4a located on the outer periphery on the upper side of the adjacent pulley wheels 4, 4 as rotating passive components and on the outer periphery on the lower side. The toothed portion 5a provided on the inner periphery of the endless timing belt 5 and the toothed portion 5b provided on the outer periphery alternately mesh with each other by being passed over from the top to the bottom and from the bottom to the top of the toothed portion 4b. By doing so, the engaging force is exerted and the driving force of the motor M is transmitted to the wound belt wheel 4.

Reference numerals 6a, 6b, 6c, and 6d denote belt wheels for idlers in which a desired number are arranged below the belt wheel 4 to form a drive mechanism.
The a, 6b, 6c, and 6d are formed to have a larger diameter than the belt wheel 4 so that the timing belt 5 has an appropriate tension and the power transmission loss from the motor M is reduced. Reference numeral 7 denotes a drive belt wheel as a power transmission component for transmitting the rotation of one motor M installed between the opposed frames 2 and 2 as a drive source to an endless timing belt 5 as a string-shaped component. The belt wheel 7 is provided with the belt wheels 4, 6a, 6b, 6c, 6
The motor shaft m of the motor M formed to have a diameter larger than
Is attached to the toothed portion 5a on the inner peripheral side of the timing belt 5 to effectively transmit the rotational driving force of the motor M to the timing belt 5.

The first embodiment of the present invention is constructed as described above. When the motor M is driven to rotate and the drive belt wheel 7 mounted on the motor shaft m rotates, the idler belt wheels 6a, 6b, The timing belt 5 is rotated via 6c and 6d. For this reason, as shown in FIGS. 7 and 8, the toothed portions 5a, 5b provided on the inner circumference or the outer circumference of the timing belt 5 are located on the upper outer circumference or the lower outer circumference of the belt wheels 4, 4,. Since the timing belt 5 is alternately meshed with the teeth 4a, 4b from top to bottom and from bottom to top, the timing belt 5 has no difference on the tension side or the slack side, does not loosen, has no variation, and has an average moderate degree. Are wound around a part of the belt pulleys 4, 4,..., So that the timing belt 5 rotates around a large number of adjacent belt pulleys 4, 4,. As a result, there is no slippage in the opposite directions of clockwise and counterclockwise, there is no waste such as transmission loss, and the rotation is assured at a good start. in this way,
As the single motor M rotates and drives the belt wheels 4, 4,..., The belt wheels 4, 4,... Are mounted at one end and are arranged adjacent to the conveyor C in the longitudinal direction X. Are rotated synchronously without any transmission loss, so that there is no variation in torque.
It has good responsiveness and rotates clockwise or counterclockwise.

In this embodiment, the length of the conveyor C
Are arranged in the direction X, and the adjacent rotation axes 1, 1...
3 and 4, as shown in FIG. 3 and FIG.
A single conveyor C into three regions K in the width direction Y₁,
K_Two, K_ThreeAnd these three areas K₁, K_Two, K_Three
Left and right two areas K₁, K_ThreeRotate clockwise
.. Between the rotating shafts 1, 1._TwoOpen the roller
3 is loosely inserted, the article F is placed on the roller 3.
When placed, the roller 3 rubs against the rotating shafts 1, 1,.
The rotation driving force from the motor M is
3 is passive and is divided by a single conveyor C
K₁, K_ThreeThen, the goods F, F are transported in the direction shown by the arrow a.
It is. At the same time, three
Area K₁, K _Two, K_ThreeLeft and right two areas K₁, K
_ThreeArea K sandwiched between_TwoIs rotated counterclockwise
Since the roller 3 is loosely inserted into the rotating shafts 1, 1.
Area K_TwoThen on the roller 3 in the single conveyor C
The article F to be placed is transported in the direction shown by arrow B. This
As shown in FIG. 3, a single conveyor C
Thus, the article F is divided into three areas K₁, K_Two, K_ThreeTo
Are transported in both directions of arrow A and arrow B. What
The illustration shows a single conveyor C as three regions K in the width direction Y.
₁, K_Two, K_ThreeThe article F is divided into the arrow A and the arrow B.
Although a conveyor that conveys in both directions is typically shown,
This is an example, and a single conveyor C can be divided into two or more
, A large number of articles F can be easily
Can be transported in any direction. Therefore production line, assembly
Convey articles bidirectionally on lines, inspection lines, etc.
This makes it suitable for collecting and separating the articles F.
The degree of freedom in the line design of conveyors is assured, and combined use
Can be done.

In this embodiment, as shown in FIG. 3, a large number of rollers 3 formed of a synthetic resin and divided into short cylinders are free in the axial direction J of a number of rotating shafts 1, 1,. It is supported by being inserted. Therefore, in order to stop a large number of articles F being conveyed on the line in a multi-row manner in order to use the conveyor C for product management and product processing,
When a stop plate (not shown) is protruded or retracted with respect to the conveyance path surface on the roller 3 of the conveyor C, or when the worker temporarily stops the conveyance of the article F conveyed to the roller 3 by hand, the roller 3 The rotation shaft 1 in the mounting hole 3a provided in
Are idle, the roller 3 and the article F placed on the roller 3 are stopped. In addition, the succeeding article F conveyed collides with the preceding article F, so that the succeeding article F stops on the roller 3. Therefore, the conveyed article F tilts, breaks or deforms. No confusion is required. For this reason, the goods F that are rejected by the inspection
, Or necessary processing operations can be easily performed on the article F.

A drive mechanism for rotating the roller 3 includes a motor M as a drive source disposed between the wall components 2A, 2A of the facing frame 2, and a motor M
Drive belt wheel 7 mounted on the motor shaft m
And idler belt wheels 6a, 6b, 6c, 6d arranged at desired positions outside the frame 2 of the conveyor C,
A number of rotating shafts 1... Rotatably attached to the frame 2 of the conveyor C along the longitudinal direction X, and these rotating shafts 1
Are wound around the outside of the frame 2 in order to transmit the rotational driving force of the motor M to a number of rotating shafts 1 and arranged along the longitudinal direction X. And the timing belt 5 as an endless string-shaped part, and is compactly accommodated in the height h of the frame 2 of the conveyor C. As described above, the conveyor C itself can be designed to be thin by providing a drive mechanism at a thickness of about 120 mm, which is the height h of the frame 2, and thus, unlike the conventional case, the height of the conveyor table is limited by a certain limit. Since it can be set to a desired height without receiving, the distance from the conveyor C to the worker's eyes can be shortened in performing product processing and product management for the article F,
Inspection work and processing work of the article F can be easily performed, and work efficiency is improved. In addition, the driving belt wheel 7 for passively receiving the driving torque from the motor M and the idler belt wheels 6a, 6
b, 6c, 6d, a belt wheel 4 provided at one end of the rotating shaft 1 supporting the roller 3, and a timing belt 5 as an endless cord-like component are arranged outside the frame 2. Therefore, replacement, maintenance, and management of parts when the conveyor C fails or the like are easy, and assembly and replacement of parts can be performed efficiently and quickly.

Further, in the illustrated embodiment, the conveyor C
The belt wheel 4 as a rotary passive component mounted on the side end of the large number of rotary shafts 1 has the same diameter Φ so that the rotational speed of the rotary shaft 1 is the same. Although the one that rotates at a high speed is typically described, the endless string can be obtained by selecting a desired distance in a single conveyor C and selecting the diameter Φ of the belt wheel 4 mounted on the rotating shaft 1 in a large or small size. Belt wheel 4 with respect to timing belt 5 as a cylindrical part
If the peripheral speed is controlled by adjusting the engagement dimension of the outer circumference of, the transport speed of the article F on the conveyor C can be easily controlled.

FIG. 9 shows a second embodiment of the present invention. This embodiment is illustrated with respect to belt wheels 4, 4,... As rotating passive parts mounted at one end of a number of rotating shafts 1, 1,. Are engaged with the toothed portions 4a, 4a,... Located on the outer periphery on the upper side of the belt wheels 4, 4,. Although not shown, the toothed portion 4b of the timing belt 5 as an endless string-shaped component is meshed with the toothed portion 4b, 4b,. The adjacent rotating shafts 1, 1 provided in the direction X
Are rotated in the same direction, and the article F placed on the roller 3 is rotated.
Are transported in the same direction.

The conveyor C of this embodiment is such that a single conveyor C is divided into several areas in the longitudinal direction X or the width direction Y and the articles F are conveyed in the same direction. Use in combination with the conveyor of the first embodiment to be conveyed is more advantageous for separating and assembling the articles F, and otherwise has the same configuration and operation as the first embodiment.

FIGS. 10 and 11 show a third embodiment of the present invention. In this embodiment, of a number of rotating shafts 1, 1... Arranged at equal pitches P over the longitudinal direction X of the conveyor C, the rotating shafts 1, 1. The endless teeth rotated by the driving force of the motor M are provided on the toothed portions on the outer circumference of the first and second belts 4 and 4 serving as first passive passive components mounted on the first rotating shaft 1 and the second rotating shaft 1. Toothed portion 5a provided on the inner periphery of the timing belt 5 as a cord-shaped component, and toothed portion 5b provided on the outer periphery
Are engaged and wound from the upper outer circumference to the lower outer circumference or from the lower outer circumference to the upper outer circumference, and the third and subsequent rotating shafts 1, 1... Belt wheel 4 as a second rotary passive component in a desired arrangement
A and a belt wheel 4B as a third rotary passive component are mounted coaxially with the second rotary passive component. Then, the second and third short-diameter timing belts 5A and 5B for power transmission are wound around a belt wheel 4A as a second rotary passive component and a belt wheel 4B as a third rotary passive component, respectively. Turn. The timing belts 5A and 5B are endless and have the same structure as the timing belt 5, but have only a small diameter, and are otherwise substantially the same as the first embodiment.

When the motor M is driven to rotate, the timing belt 5 as an endless string-like component disposed outside the frame 2 of the conveyor C rotates, and the teeth provided on the inner peripheral side of the timing belt 5 are rotated. The first tooth portion 4a, 4b located on the outer circumference is alternately meshed with the tooth portion 5a and the tooth portion 5b provided on the outer peripheral side from the upper side to the lower side and from the lower side to the upper side. The first rotating shaft 1 and the second rotating shaft 1 provided with belt wheels 4, 4 as rotating passive parts at one end rotate in mutually different rotating directions. Therefore, of the third and subsequent rotating shafts 1, 1... Provided in the longitudinal direction X of the conveyor C, one side end of the rotating shafts 1, 1,. Belt as a second rotary passive component in which a timing belt 5A as a second endless string-like component and a timing belt 5B as a third endless string-like component are wound. The wheel 4A and the belt wheel 4B as a third rotary passive component provided coaxially with the belt wheel 4A apply the rotational driving force from the motor M to the first rotary shaft 1 and the second rotary shaft 1.
Then, it is rotated clockwise or counterclockwise via the timing belts 5A and 5B. Therefore, the corresponding rotating shafts 1, 1... And the rollers 3 supported by the rotating shafts 1, 1,... Are also rotated clockwise or counterclockwise. Therefore, in this embodiment, the single conveyor C is divided into several regions in the width direction Y, and the rotation axes 1, 1... Are rotated clockwise or counterclockwise to transport the articles F, F in a single conveyor C in both directions of arrow A and arrow B. Suitable for transport.

FIGS. 12, 13 and 14 show a fourth embodiment of the present invention. In each of the first, second and third embodiments, a rotary passive component is mounted at one end of a number of rotary shafts 1, 1... By rotating an endless string-like component around the component, the rotational force from the motor M is passively rotated to rotate the rotating shafts 1, 1,... And the rollers 3 supported by the rotating shafts 1, 1,. In this embodiment, in order to rotate a large number of rotating shafts 1, 1,... Supporting the roller 3, rotating passive components, etc. are provided at both ends of the rotating shafts 1, 1,. A single motor M on a single conveyor is wound by winding an endless string-like component around the rotary passive component.
Rotating drive force from the rotating shaft 1, 1 with the load reduced
Are rotated to rotate the rotating shafts 1, 1..., And the other configuration and operation are the same as those of the first embodiment.

That is, in detail, a number of rotating shafts 1, 1 rotatably mounted on the frame 2 and supporting the rollers 3
, And belt wheels 4, 4; 4, as first rotating passive parts mounted in one end of the rotating shafts 1, 1,.
, A motor M as a drive source, and toothed portions 4a located on the outer periphery on the upper side and belt teeth located on the outer periphery on the lower side of the belt wheels 4, 4; Are alternately engaged with each other at predetermined intervals, and the driving force of the motor M is applied to the rotating shafts 1, 1,... Via belt wheels 4, 4; 4, 4,. A timing belt 5 as a common endless first string-shaped component provided along the longitudinal direction X of the conveyor C so as to be rotatable in opposite directions of clockwise and counterclockwise; Belt wheels 4,4; 4,4 as the rotary passive parts
Are provided at the other end of the remaining rotating shafts 1 ', 1' ... provided in a desired arrangement between the rotating shafts 1, 1 ... at one end. From the toothed portion 4a located on the outer periphery on the upper side to the toothed portion 4b located on the lower side of the wheel 4C 'and the belt wheels 4, 4; The rotating shafts 1, which are arranged at positions where the timing belt 5 as the first string-like component is wound from the toothed portion 4b located on the lower outer periphery to the toothed portion 4a located on the upper outer periphery. Reference numeral 1 denotes a belt wheel 4C mounted on the other side end as a rotary drive component, and the belt wheel 4C and the belt wheel 4 as the fourth rotary passive component
And a timing belt 5C as a second cord-like component that transmits the power from the motor M from the belt wheel 4C to the belt wheel 4C 'by being wound between the belt wheel 4C'.

When the belt wheels 4, 4; 4, 4,... As the first rotating passive components are arranged at one end of the rotating shafts 1, the predetermined arrangement is as follows. For example, in order to share the two rotating shafts 1 rotating in the same direction and the rotating shafts 1 rotating in different directions to ensure the bidirectionality of conveyance of the articles F placed on the rollers 3, 3. In this embodiment, the rotating shaft 1 rotated in the same direction and the rotating shaft 1 rotated in the different direction are provided adjacent to each other in the longitudinal direction X of the conveyor C in pairs. In addition, between the two rotating shafts 1, 1; 1, 1..., The remaining rotating shaft 1 ′ mounts a belt wheel 4C ′ as a fourth rotating passive component at the other end. They are arranged in a state where they are installed.

In this embodiment, when the motor M is driven to rotate, the timing belt 5 as an endless string-like component is rotated. Therefore, the timing belt 5 is provided on the inner periphery of the timing belt 5 as shown in FIG. Toothed portion 4a located on the upper outer periphery of the toothed portion 5a and the toothed portion 5b provided on the outer periphery.
And the toothed portions 4b located on the lower outer periphery are engaged with each other as belt wheels 4, 4;
.. Are rotated in a clockwise or counterclockwise direction, and the rotational driving force from the motor M is surely rotated without causing a slip and without a transmission loss. In this way, the rotating shafts 1, 1; 1, 1... Equipped with the belt wheels 4, 4; 4, 4... At one end are rotated clockwise or counterclockwise. Are rotated clockwise or counterclockwise.

Moreover, from the toothed portion 4a located on the outer periphery on the upper side of the belt wheels 4, 4 as the first rotary passive component, to the toothed portion 4b located on the outer periphery on the lower side, or located on the outer periphery on the lower side. Is arranged at a position where the inner or outer periphery of the timing belt 5 as the first cord-like component is wound from the toothed portion 4b to the toothed portion 4a located on the upper outer periphery,
From a belt wheel 4C as a rotary drive component mounted on the other end of the rotary shaft 1, the timing belt 5C is connected to an endless timing belt 5C for power transmission wound around one side of the belt wheel 4C. The rotational driving force from the single motor M is passively applied to the belt wheel 4C 'whose other side is wound.

Therefore, two sets make up a set in a clockwise or
Intermediate between rotating shafts 1,1; 1,1 ... rotated counterclockwise
And a belt wheel 4C 'is mounted on one side.
Are different from the rotating shafts 1, 1; 1, 1.
Is rotated clockwise or counterclockwise. And figure
As shown in Fig. 13, a single conveyor C
Area, for example, three areas K₁, K_Two, K_ThreeWhen classified into
Are supported by the large number of rotating shafts 1, 1.
Rollers 3, 3 ... rotate clockwise or counterclockwise
So that the two areas K on the left and right₁, K_ThreeIn
, The articles F placed on the rollers 3 and 3 are in the directions indicated by arrows a.
And left and right areas K₁, K _ThreeIn the middle of
Area K_ThreeIs placed on the roller 3 ...
The article F is transported as indicated by the arrow B. Thus, a single
In the conveyor C, the articles F, F, and F are indicated by arrows A and B.
Transported in two directions to separate or collect items
The line itself is rich in the flexibility of using conveyor combinations such as
Is not as large as a conventional roller conveyor, and
The installation of the conveyor line does not require a large area.

In the above description, in order to transmit the rotational driving force from the motor M and rotate a large number of rotating shafts 1 attached to the frame 2, the rotating shafts 1 are provided in a predetermined arrangement at the side ends thereof. The rotating passive components or rotating driving components use belt wheels 4, 4A, 4B, 4C '; 4C, and the endless string-like parts meshing with the belt wheels 4, 4A, 4B, 4C'; The case where the belts 5, 5A, 5B, 5C are used is described as a representative example, but a rotary passive component or a rotary drive component for rotating the rotary shafts 1... Not limited. For example, the rotary passive component or the rotary drive component is a sprocket, and the endless string-like component meshes with a chain that meshes with the sprocket to increase the degree of engagement required for power transmission, or the rotary passive component or the rotary passive component. The rotary drive component is a belt wheel, and the endless string-shaped component is a flat belt wound around the belt wheel, or a rotary shaft 1 that supports the roller 3 even if it is any of a round belt and a V belt. Can be rotated.

[0040]

As described above, the present invention supports the roller,
A large number of rotating shafts rotatably mounted on the frame, rotating passive components mounted in a predetermined arrangement at side ends of the rotating shafts, a motor as a drive source, and rotating by the driving force of the motor to rotate A shared string-shaped part provided along the longitudinal direction of the conveyor without rotating the rotating shaft through the rotating passive part by driving the motor by engaging a part of the outer periphery of the desired number of passive parts. , So that a single conveyor conveys articles in the same direction as well as conveys articles in two directions, collects or separates articles, and skews conveyors simultaneously. It has a lot of flexibility to be used on many sides, does not increase the size of the line itself, does not occupy a large area for laying, and can easily control the transport speed of articles. Conveyors are easy to manufacture and assemble, parts can be shared, maintenance and inspection can be performed quickly and reliably, and the conveyor can be made thinner and more compact. It is convenient to assemble the apparatus with other machines, and the operability such as inspection and processing of articles can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a roller conveyor according to the present invention.

FIG. 2 is an enlarged side view showing a part of the same.

FIG. 3 is an enlarged plan view of the same.

FIG. 4 is an enlarged front view of the same.

FIG. 5 is an explanatory enlarged side view illustrating an example of a roller and a rotating shaft that supports the roller in the embodiment.

FIG. 6 is an explanatory enlarged side view showing another example of a roller and a rotating shaft supporting the roller.

FIG. 7 is an enlarged side view showing a part of the timing belt used in the embodiment.

FIG. 8 is an enlarged sectional view of the timing belt.

FIG. 9 is a side view showing a second embodiment of the roller conveyor of the present invention.

FIG. 10 is an enlarged side view showing a third embodiment of the roller conveyor of the present invention.

FIG. 11 is a partially cutaway enlarged plan view.

FIG. 12 is a side view showing a fourth embodiment of the roller conveyor of the present invention.

FIG. 13 is an enlarged plan view of the same.

FIG. 14 is an enlarged front view of the same.

FIG. 15 is a side view showing an example of this type of conventional roller conveyor.

FIG. 16 is a plan view of the same.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 rotating shaft 1 'rotating shaft 2 frame 3 roller 4 belt wheel 4A belt wheel 4B belt wheel 4C belt wheel 4C' belt wheel 4a toothed portion 4b toothed portion 5 timing belt 5A timing belt 5B timing belt 5C timing belt 7 belt wheel C conveyors F article M motor K ₁ region K ₂ region K ₃ region X longitudinal direction Y transverse direction

[Procedure amendment]

[Submission date] May 17, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Roller conveyor

[Claims]

By wherein the starting side or the first rotary shaft and the driving force of the motor in a first rotational passive component that So設to a second rotary shaft which is So設longitudinally adjacent to the end side of the conveyor The endless string-shaped part to be rotated is alternately wound around the upper outer periphery or the lower outer periphery, and the third and subsequent rotating shafts are mounted in a desired arrangement every odd number or even number. A second rotary passive component and a third rotary passive component coaxially mounted on the second rotary passive component;
The roller conveyor according to claim 1, wherein each of the third cord-shaped parts is wound.

3. A plurality of rotating shafts rotatably mounted on a frame and supporting rollers, and a first rotating passive component mounted on one end of the rotating shaft in a predetermined arrangement. A motor as a drive source, and the driving force of the motor is alternately engaged with the outer periphery on the upper side and the outer periphery on the lower side of the rotary passive component by a predetermined number every time, thereby driving the motor via the first rotary passive component. A common endless first string-shaped component provided along the longitudinal direction of the conveyor and provided at one side end so as to be rotatable in a direction opposite to the rotation axis. A fourth rotary passive component mounted on the other end of the remaining rotary shaft provided in a desired arrangement between the rotary shafts, and an upper outer circumference to a lower outer circumference of the first rotary passive component; Alternatively, the first string-shaped part is wound from the outer periphery on the lower side to the outer periphery on the upper side. A rotating drive component provided at the other end of the rotating shaft arranged at the direction change position to be moved, and a power transmitted from a motor wound between the rotating drive component and the fourth rotary passive component; The roller conveyor according to claim 1, comprising a second endless string-shaped part, and the article can be transported in both directions by a single conveyor.

4. A first rotating passive component is mounted on one side end.
The rotating shaft is divided into a rotating shaft that rotates in the same direction and a rotating shaft that rotates in a different direction. Are provided adjacent to each other in the direction, and the other rotary shaft provided with a fourth rotary passive component at the other end between the two rotary shafts is arranged so as to be rotatable in the opposite direction. The roller conveyor according to claim 3 , wherein:

5. The rotary passive component or the rotary drive component is a belt wheel, and the endless string-shaped component is a timing belt formed with inner and outer teeth having teeth engaged with the belt wheel. The roller conveyor according to any one of claims 1 to 5, wherein the roller conveyor is a roller conveyor.

6. A single conveyor is divided into several regions in the longitudinal direction , and the regions are provided so that the rotating shafts are rotated in the same direction or rotatable in opposite directions. 2. The roller conveyor according to claim 1, wherein the roller conveyor is divided into several areas, and the areas adjacent to each other in the width direction are rotatably provided in directions in which rotation axes are opposite to each other.

7. A roller is loosely inserted into the rotary shaft, the roller conveyor of claim 1, the friction of the rollers relative to the axis of rotation, the roller by the engagement, characterized in that it is rotated.

8. The roller conveyor according to claim 1, wherein the roller is fitted on a rotating shaft.

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller conveyor for use in, for example, a production line and the like. In addition, the manufacture and assembly of the conveyor is easy, maintenance and inspection can be performed quickly and reliably, and further, the conveyor is made thinner and more compact.

[0002]

2. Description of the Related Art Conventionally, for example, a production line, an assembly line,
2. Description of the Related Art For example, a roller conveyor is used to transport articles on an inspection line or the like. In this roller conveyor, the conveyor is inclined to transport the articles without using a motor as a driving source, and the articles are transported by dropping due to the inclination. However, this type of roller conveyor could not control the moving speed of the articles other than changing the inclination angle gently or steeply. Further, examples of a roller conveyor of a type in which a rotating shaft supporting a roller is rotated by using a motor as a driving source include those shown in FIGS. 15 and 16. This roller conveyer is provided with a sprocket d at one end of a number of rotating shafts c rotatably mounted on an opposing frame b on which rollers a are inserted, and a motor provided on the sprocket d below the frame b. M '
The endless chain e that rotates passively with the rotational force is wound to include sprockets d, d arranged at the start end (left end in FIG. 15) and the end end (right end in FIG. 15). multiple sprocket d provided in the middle, meshing a chain e as d ... at least the upper side outer circumferential d ₁ and the lower side endless string-like part of the outer periphery d ₂ of the. In order to transmit the driving force of the motor M 'to the starting or ending rotating shaft c, for example, a motor shaft m' having a sprocket d "of the motor M 'is used.
In addition to using a sprocket d 'mounted on the rotating shaft c located at the start end side in FIG. 15 and a chain e' as an endless string-like part wound around the sprocket d ', A belt wound around this belt wheel is used. When the motor M 'is rotated to rotate the sprocket d' via the chain e 'and the sprocket d provided coaxially with the sprocket d', all of the sprocket d including the sprocket d via the chain e 'is rotated. The sprockets d, d... Are passively rotated by the driving force from the motor M '. For this reason, since the rotating shaft c is rotated integrally with the roller a, the article F placed on the roller a is
Is transported on the conveyor from the upstream side (left side in FIGS. 15 and 16) to the downstream side (right side in FIGS. 15 and 16).

[0003]

However, FIG.
The conventional roller conveyor shown in FIG. 16 conveys an article F from an upstream side to a downstream side on a single conveyor, and conveys the article F only from the upstream side to the downstream side in the same direction. It is just done. For this reason, it is not necessary to convey the articles F in the same direction on a single conveyor, of course, there is no freedom to convey the articles F in two directions, and the articles F are collected and separated or even skewed.
In order to use the combination of transporting the production line, the production line and the like become large-scale and complicated, and the laying of the line requires a large area. Further, in the conventional conveyor described above, when the articles F are transported for use in product management or product processing, a plurality of the articles F are transported at the same speed on the roller a at a time, so that the inspection fails. Controlling the transport speed of the article F to remove the article F, perform the necessary processing work on the article F, and temporarily stop the article F required for processing without stopping the operation of the conveyor. Could not. If the article F is stopped, there is an inconvenience that the article F preceding the succeeding article F is pressed and deformed or damaged, or the article F is confused by being inclined. The conventional roller conveyor shown in FIGS. 15 and 16 has a driving mechanism for rotating and driving a plurality of rotating shafts c mounted on a frame b.
The driving force of the motor M 'arranged on the lower surface of the chain e'
The rotation of the motor M 'is transmitted to any of the rotation shafts c (the rotation shaft c on the starting end side in FIGS. 15 and 16) by using the power transmission parts of the motor M' and the sprockets d 'and d ". Then, all the rotating shafts c are rotated through an endless chain e wound around a number of sprockets d including a sprocket d mounted coaxially with the sprocket d 'at one end of the rotating shafts c. Since the drive mechanism for rotationally driving the rotating shaft c is provided entirely below the frame b, the height h 'of the table of the conveyor is increased, and other machines such as an article alignment device are used. There are certain restrictions when assembling the conveyor to the conveyor.Moreover, the height h 'to the table of the conveyor is high, so that it is necessary to work from the conveyor to perform product processing and product management on articles. Distance of up to under the eyes is reduced,
Inspection work and processing work for articles were difficult, and work efficiency was poor.

[0004] The present invention solves the above conventional disadvantages, conveyors or the like conveying the conveying direction of the article in a single conveyor simultaneously in different directions of the bidirectional, also set and separation of the article, further to skew It has a high degree of freedom in the use of combinations, and the line itself does not increase in size, does not occupy a large area for laying, it is easy to control the conveying speed of articles, and it is easy to manufacture and assemble conveyors and parts Can be shared, and maintenance and inspection can be performed easily and reliably. Furthermore, the conveyor is made thinner and more compact, making it easy to assemble it with other machines. Try to provide a roller conveyor that improves

[0005]

SUMMARY OF THE INVENTION The present invention is made in consideration of the above problems, and claim 1 is to support the rollers, and a number of support shafts mounted on the frame, instrumentation in a predetermined sequence on a side end of said support shaft Rotating passive components to be installed, a motor as a drive source,
The rotary passive component is disposed outside the conveyor in the longitudinal direction,
The driving force of the motor is passively
A roller conveyor having a common endless string-shaped component for rotating the rotary passive component.
It is divided into several areas in the width direction, in which
A rotating shaft that is rotatably mounted on the
The rotary passive component is mounted on a side end, and the rotary passive component is
The endless string-shaped portion is provided on the outer periphery on the upper side or the outer periphery on the lower side.
The articles are wound in a predetermined arrangement so as to be engageable, and the single
Endless string that rotates passively with the driving force of the motor
The rotation axis in the area is rotated in a different direction through a part.
The goods in different areas of a single conveyor
Means that the paper is conveyed in the opposite direction .

According to a second aspect of the present invention, in the first aspect, the first rotating shaft and the second rotating shaft which are mounted adjacent to the start end or the end side of the conveyor in the longitudinal direction are provided. 1
The endless string-shaped component rotated by the driving force of the motor is alternately wound around the upper or outer periphery of the rotating passive component, and the third and subsequent rotating shafts are odd-numbered or even-numbered. The second and third cords for transmitting power are respectively connected to the second rotary passive components mounted in a desired arrangement and the third rotary passive components mounted coaxially to the second rotary passive component. Means of winding each part was adopted.

According to a third aspect of the present invention, in the first aspect, a plurality of rotating shafts are rotatably mounted on the frame as supporting shafts for supporting the rollers, and are mounted on one end of the rotating shafts in a predetermined arrangement. The first rotating passive component provided, the motor as a drive source, and the driving force of the motor are alternately engaged with the upper outer periphery and the lower outer periphery of the rotating passive component at predetermined intervals. A common endless first shaft is provided rotatably in the opposite direction to the rotation axis via the first rotation passive component, and is provided along the longitudinal direction of the conveyor.
And a fourth rotary passive component mounted on the other end of the remaining rotary shaft provided in a desired arrangement between the rotary shafts having the first rotary passive component at one end at one end thereof And the first rotary passive component is arranged in a direction changing position where the first string-shaped component is wound from the upper outer circumference to the lower outer circumference or from the lower outer circumference to the upper outer circumference. A rotary drive component mounted on the other end of the rotary shaft; and a second cord-like component wound between the rotary drive component and the fourth rotary passive component and transmitting power from a motor. In this case, a means is adopted in which articles can be conveyed bidirectionally on a single conveyor.

According to a fourth aspect of the present invention, in the third aspect , the rotating shaft provided with the first rotary passive component at one end is a rotating shaft rotating in the same direction and a rotating shaft rotating in a different direction. The two rotating shafts of the same direction and the different direction are provided adjacent to each other in the longitudinal direction of the conveyer. Further, a means is adopted in which the remaining rotary shaft provided with the fourth rotary passive component at the other end is rotatably arranged in the opposite direction.

According to a fifth aspect of the present invention, in any one of the first, second, third, and fourth aspects, the rotary passive component or the rotary drive component is a belt wheel, and has an endless string shape. Means is adopted in which the parts are timing belts formed on the inner circumference and the outer circumference with toothed portions meshed with the belt wheel.

According to a sixth aspect of the present invention, in the first aspect, the single conveyor is divided into several regions in the longitudinal direction , and the regions are rotatable in the same direction or opposite directions in which the rotation shaft is rotated. single conveyor with provided is divided into several regions in the width direction, the region adjacent to the width direction employing the means of the rotary shaft is provided rotatably in opposite directions.

According to a seventh aspect of the present invention, in the first aspect, the roller is loosely inserted into the rotating shaft, and the roller is rotated by friction and engagement of the roller with the rotating shaft.

An eighth aspect of the present invention employs the means in the first aspect, in which the roller is inserted into the rotating shaft.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific example of an embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 8 show a first embodiment of the present invention applied to a bidirectional conveyor C for carrying articles F in both directions. Reference numeral 1 denotes a large number of rotating shafts rotatably mounted on the opposite frame 2 in the longitudinal direction X. The rotating shaft 1 supports a roller 3 as a support shaft . The rotating shaft 1 is formed in a rod shape from a metal such as stainless steel.

In this embodiment, the frame 2 is divided into several regions in the width direction Y of a single conveyor C, for example, three regions K ₁ , K ₂ , and K ₃ in FIGS. in this way,
Three regions K ₁ , adjacent to each other in the width direction Y,
K ₂ and K ₃ are provided such that the rotating shaft 1 is rotatable in mutually opposite directions adjacent to each other along the longitudinal direction X. The frame 2 is formed by arranging a pair of left and right wall components 2A, 2A so as to face each other. The height h of the wall components 2A, 2A is formed as a thin shape of about 120 mm in this embodiment. Is done.

The roller 3 is made of synthetic resin.
You. 3 and 4, for example, the axial direction of the rotating shaft 1.
Many divided into short cylinders in J are divided into three areas
K₁, K_Two, K_ThreeRespectively supported. But
The illustrated roller 3 is an example, and
It is formed in a long cylindrical shape in the axial direction J of the rotating shaft 1 without limitation.
Sometimes things are used. And this roller 3
The sequence is 3 regions K₁, K_Two, K _ThreeOnly for what
Many divided rollers 3 are attached to the rotating shaft 1.
Have been. In this embodiment, the roller 3 is attached to the rotating shaft 1.
In order to open the roller 3, as shown in FIG.
The roller 3 is rotated by inserting the rotating shaft 1 into the
Is rotated by the friction and the engagement with, and conveys the article F.
It has become. However, this is a representative example.
6, the roller 3 is inserted into the rotating shaft 1 as shown in FIG.
In some cases, it may be attached.

Reference numeral 4 denotes a belt wheel as a rotary passive component mounted on the side end of the rotary shaft 1 in a predetermined arrangement. Thus, the rotating shaft 1 is rotated. In this embodiment, the belt wheel 4 has all the rotating shafts 1 having tooth-shaped portions formed on the entire outer periphery thereof and arranged at a substantially equal pitch P in the longitudinal direction X of the frame 2 as shown in FIGS.
A belt wheel 4 is provided at one end of the belt wheel.

Reference numeral 5 denotes a timing belt as an endless string-like component provided along the longitudinal direction X of the conveyor C. The timing belt 5 is formed of a flexible material such as rubber or synthetic resin. You. The timing belt 5 is formed so as to exhibit strength against tension, compression, and the like by embedding a desired number of linear materials such as metal and carbon. The inner circumference and the outer circumference of the timing belt 5 are meshed with the outer circumference of a part of the desired number of the pulleys 4, that is, the upper toothed portion 4a or the lower toothed portion 4b. The double cog belt type in which the tooth portions 5a and 5b are formed as shown in FIGS. 7 and 8 is used to alternately wind a number of rotating shafts 1 from top to bottom or from bottom to top. The winding operation is performed in a different direction, and the idler belt wheels 6a, 6b, 6c, and 6d are installed at different locations, and the winding operation of the driving belt wheel 7 is performed quickly, reliably, and efficiently. And can be shared as one endless string-shaped part. Further, in this embodiment, as shown in FIGS. 1 and 2, the timing belt 5 is provided with a toothed portion 4a located on the outer periphery on the upper side of the adjacent pulley wheels 4, 4 as rotating passive components and on the outer periphery on the lower side. The toothed portion 5a provided on the inner periphery of the endless timing belt 5 and the toothed portion 5b provided on the outer periphery alternately mesh with each other by being passed over from the top to the bottom and from the bottom to the top of the toothed portion 4b. By doing so, the engaging force is exerted and the driving force of the motor M is transmitted to the wound belt wheel 4.

Reference numerals 6a, 6b, 6c and 6d denote belt wheels for idlers in which a desired number are arranged below the belt wheel 4 to form a drive mechanism.
The a, 6b, 6c, and 6d are formed to have a larger diameter than the belt wheel 4 so that the timing belt 5 has an appropriate tension and the power transmission loss from the motor M is reduced. Reference numeral 7 denotes a drive belt wheel as a power transmission component for transmitting the rotation of one motor M installed between the opposed frames 2 and 2 as a drive source to an endless timing belt 5 as a string-shaped component. The belt wheel 7 is provided with the belt wheels 4, 6a, 6b, 6c, 6
The motor shaft m of the motor M formed to have a diameter larger than
Is attached to the toothed portion 5a on the inner peripheral side of the timing belt 5, effectively transmits the rotational driving force of the motor M to the timing belt 5 , is lightweight, and
No noise is generated .

The first embodiment of the present invention has the above construction. When the driving belt wheel 7 mounted on the motor shaft m rotates by rotating the motor M, the idler belt wheels 6a, 6b, The timing belt 5 is rotated via 6c and 6d. For this reason, as shown in FIGS. 7 and 8, the toothed portions 5a, 5b provided on the inner circumference or the outer circumference of the timing belt 5 are located on the upper outer circumference or the lower outer circumference of the belt wheels 4, 4,. Since the timing belt 5 is alternately meshed with the teeth 4a, 4b from top to bottom and from bottom to top, the timing belt 5 has no difference on the tension side or the slack side, does not loosen, has no variation, and has an average moderate degree. Are wound around a part of the belt pulleys 4, 4,..., So that the timing belt 5 rotates around a large number of adjacent belt pulleys 4, 4,. As a result, there is no slippage in the opposite directions of clockwise and counterclockwise, there is no waste such as transmission loss, and the rotation is assured at a good start. Also Taimin
Guberto 5 is lightweight and does not generate noise.
In addition, the back of one timing belt 5 is exhibited by exhibiting flexibility.
In other words, the inner peripheral side or the outer peripheral side can be shared.
As the single motor M rotates and drives the belt wheels 4, 4,..., The belt wheels 4, 4,... Are mounted at one end, and extend in the longitudinal direction X of the conveyor C. Since the plurality of rotating shafts 1, 1... Arranged adjacently rotate synchronously without causing transmission loss, they have good responsiveness without any variation in torque, and contradict clockwise or counterclockwise. Rotate in the direction.

In this embodiment, the length of the conveyor C is
Are arranged in the direction X, and the adjacent rotation axes 1, 1...
3 and 4, as shown in FIG. 3 and FIG.
A single conveyor C into three regions K in the width direction Y₁,
K_Two, K_ThreeAnd these three areas K₁, K_Two, K_Three
Left and right two areas K₁, K_ThreeRotate clockwise
.. Between the rotating shafts 1, 1._TwoOpen the roller
3 is loosely inserted, the article F is placed on the roller 3.
When placed, the roller 3 rubs against the rotating shafts 1, 1,.
The rotation driving force from the motor M is
3 is passive and is divided by a single conveyor C
K₁, K_ThreeThen, the goods F, F are transported in the direction shown by the arrow a.
It is. At the same time, three
Area K₁, K _Two, K_ThreeLeft and right two areas K₁, K
_ThreeArea K sandwiched between_TwoIs rotated counterclockwise
Since the roller 3 is loosely inserted into the rotating shafts 1, 1.
Area K_TwoThen on the roller 3 in the single conveyor C
The article F to be placed is transported in the direction shown by arrow B. This
As shown in FIG. 3, a single conveyor C
Thus, the article F is divided into three areas K₁, K_Two, K_ThreeTo
Are transported in both directions of arrow A and arrow B. What
The illustration shows a single conveyor C as three regions K in the width direction Y.
₁, K_Two, K_ThreeThe article F is divided into the arrow A and the arrow B.
Although a conveyor that conveys in both directions is typically shown,
This is an example, and a single conveyor C can be divided into two or more
, A large number of articles F can be easily
Can be transported in any direction. Therefore production line, assembly
Convey articles bidirectionally on lines, inspection lines, etc.
This makes it suitable for collecting and separating the articles F.
The degree of freedom in the line design of conveyors is assured, and combined use
Can be done.

In this embodiment, as shown in FIG. 5, a large number of short rollers 3 made of synthetic resin and divided into short cylinders play in the axial direction J of a number of rotating shafts 1, 1,. It is supported by being inserted. Therefore, in order to stop a large number of articles F being conveyed on the line in a multi-row manner in order to use the conveyor C for product management and product processing,
When a stop plate (not shown) is protruded or retracted with respect to the conveyance path surface on the roller 3 of the conveyor C, or when the worker temporarily stops the conveyance of the article F conveyed to the roller 3 by hand, the roller 3 The rotation shaft 1 in the mounting hole 3a provided in
Are idle, the roller 3 and the article F placed on the roller 3 are stopped. In addition, the succeeding article F conveyed collides with the preceding article F, so that the succeeding article F stops on the roller 3. Therefore, the conveyed article F tilts, breaks or deforms. No confusion is required. For this reason, the goods F that are rejected by the inspection
, Or necessary processing operations can be easily performed on the article F.

A drive mechanism for rotating the roller 3 includes a motor M as a drive source disposed between the wall components 2A, 2A of the frame 2 facing each other, and a motor M as a drive source.
Drive belt wheel 7 mounted on the motor shaft m
And idler belt wheels 6a, 6b, 6c, 6d arranged at desired positions outside the frame 2 of the conveyor C,
A number of rotating shafts 1... Rotatably attached to the frame 2 of the conveyor C along the longitudinal direction X, and these rotating shafts 1
Are wound around the outside of the frame 2 in order to transmit the rotational driving force of the motor M to a number of rotating shafts 1 and arranged along the longitudinal direction X. And the timing belt 5 as an endless string-shaped part, and is compactly accommodated in the height h of the frame 2 of the conveyor C. As described above, the conveyor C itself can be designed to be thin by providing a drive mechanism at a thickness of about 120 mm, which is the height h of the frame 2, and thus, unlike the conventional case, the height of the conveyor table is limited by a certain limit. Since it can be set to a desired height without receiving, the distance from the conveyor C to the worker's eyes can be shortened in performing product processing and product management for the article F,
Inspection work and processing work of the article F can be easily performed, and work efficiency is improved. In addition, the driving belt wheel 7 for passively receiving the driving torque from the motor M and the idler belt wheels 6a, 6
b, 6c, 6d, a belt wheel 4 provided at one end of the rotating shaft 1 supporting the roller 3, and a timing belt 5 as an endless cord-like component are arranged outside the frame 2. Therefore, replacement, maintenance, and management of parts when the conveyor C fails or the like are easy, and assembly and replacement of parts can be performed efficiently and quickly.

Further, in the illustrated embodiment, the conveyor C
The belt wheel 4 as a rotary passive component mounted on the side end of the large number of rotary shafts 1 has the same diameter Φ so that the rotational speed of the rotary shaft 1 is the same. Although the one that rotates at a high speed is typically described, the endless string can be obtained by selecting a desired distance in a single conveyor C and selecting the diameter Φ of the belt wheel 4 mounted on the rotating shaft 1 in a large or small size. Belt wheel 4 with respect to timing belt 5 as a cylindrical part
If the peripheral speed is controlled by adjusting the engagement dimension of the outer circumference of, the transport speed of the article F on the conveyor C can be easily controlled.

FIG. 9 shows a second embodiment of the present invention. This embodiment is illustrated with respect to belt wheels 4, 4,... As rotating passive parts mounted at one end of a number of rotating shafts 1, 1,. Are engaged with the toothed portions 4a, 4a,... Located on the outer periphery on the upper side of the belt wheels 4, 4,. Although not shown, the toothed portion 4b of the timing belt 5 as an endless string-shaped component is meshed with the toothed portion 4b, 4b,. The adjacent rotating shafts 1, 1 provided in the direction X
Are rotated in the same direction, and the article F placed on the roller 3 is rotated.
Are transported in the same direction.

The conveyor C of the first embodiment is different from the conveyor of the first embodiment in that the single conveyor C is divided into several areas in the longitudinal direction X or the width direction Y and the articles F, F are transported in both directions. By using the combination, it is more advantageous to separate or assemble the articles F, and the other configuration and operation are the same as those of the first embodiment.

FIGS. 10 and 11 show a third embodiment of the present invention. In this embodiment, of a number of rotating shafts 1, 1... Arranged at equal pitches P over the longitudinal direction X of the conveyor C, the rotating shafts 1, 1. The endless teeth rotated by the driving force of the motor M are provided on the toothed portions on the outer circumference of the first and second belts 4 and 4 serving as first passive passive components mounted on the first rotating shaft 1 and the second rotating shaft 1. Toothed portion 5a provided on the inner periphery of the timing belt 5 as a cord-shaped component, and toothed portion 5b provided on the outer periphery
Are engaged and wound from the upper outer circumference to the lower outer circumference or from the lower outer circumference to the upper outer circumference, and the third and subsequent rotating shafts 1, 1... Belt wheel 4 as a second rotary passive component in a desired arrangement
A and a belt wheel 4B as a third rotary passive component are mounted coaxially with the second rotary passive component. Then, the second and third short-diameter timing belts 5A and 5B for power transmission are wound around a belt wheel 4A as a second rotary passive component and a belt wheel 4B as a third rotary passive component, respectively. Turn. The timing belts 5A and 5B are endless and have the same structure as the timing belt 5, but have only a small diameter, and are otherwise substantially the same as the first embodiment.

When the motor M is driven to rotate, the timing belt 5 as an endless string-like component disposed outside the frame 2 of the conveyor C rotates, and the teeth provided on the inner peripheral side of the timing belt 5 are rotated. The first tooth portion 4a, 4b located on the outer circumference is alternately meshed with the tooth portion 5a and the tooth portion 5b provided on the outer peripheral side from the upper side to the lower side and from the lower side to the upper side. The first rotating shaft 1 and the second rotating shaft 1 provided with belt wheels 4, 4 as rotating passive parts at one end rotate in mutually different rotating directions. Therefore, of the third and subsequent rotating shafts 1, 1... Provided in the longitudinal direction X of the conveyor C, one side end of the rotating shafts 1, 1,. Belt as a second rotary passive component in which a timing belt 5A as a second endless string-like component and a timing belt 5B as a third endless string-like component are wound. The wheel 4A and the belt wheel 4B as a third rotary passive component provided coaxially with the belt wheel 4A apply the rotational driving force from the motor M to the first rotary shaft 1 and the second rotary shaft 1.
Then, it is rotated clockwise or counterclockwise via the timing belts 5A and 5B. Therefore, the corresponding rotating shafts 1, 1... And the rollers 3 supported by the rotating shafts 1, 1,... Are also rotated clockwise or counterclockwise. Therefore, in this embodiment, the single conveyor C is divided into several regions in the width direction Y, and the rotation axes 1, 1... Are rotated clockwise or counterclockwise to transport the articles F, F in a single conveyor C in both directions of arrow A and arrow B. Suitable for transport.

FIGS. 12, 13 and 14 show a fourth embodiment of the present invention. In each of the first, second and third embodiments, a rotary passive component is mounted at one end of a number of rotary shafts 1, 1... By rotating an endless string-like component around the component, the rotational force from the motor M is passively rotated to rotate the rotating shafts 1, 1,... And the rollers 3 supported by the rotating shafts 1, 1,. In this embodiment, in order to rotate a large number of rotating shafts 1, 1,... Supporting the roller 3, rotating passive components, etc. are provided at both ends of the rotating shafts 1, 1,. A single motor M on a single conveyor is wound by winding an endless string-like component around the rotary passive component.
Rotating drive force from the rotating shaft 1, 1 with the load reduced
Are rotated to rotate the rotating shafts 1, 1..., And the other configuration and operation are the same as those of the first embodiment.

That is, in detail, a large number of rotating shafts 1, 1 rotatably mounted on the frame 2 and supporting the rollers 3
, And belt wheels 4, 4; 4, as first rotating passive parts mounted in one end of the rotating shafts 1, 1,.
, A motor M as a drive source, and toothed portions 4a located on the outer periphery on the upper side and belt teeth located on the outer periphery on the lower side of the belt wheels 4, 4; Are alternately engaged with each other at predetermined intervals, and the driving force of the motor M is applied to the rotating shafts 1, 1,... Via belt wheels 4, 4; 4, 4,. A timing belt 5 as a common endless first string-shaped component provided along the longitudinal direction X of the conveyor C so as to be rotatable in opposite directions of clockwise and counterclockwise; Belt wheels 4,4; 4,4 as the rotary passive parts
Are provided at the other end of the remaining rotating shafts 1 ', 1' ... provided in a desired arrangement between the rotating shafts 1, 1 ... at one end. From the toothed portion 4a located on the outer periphery on the upper side to the toothed portion 4b located on the lower side of the wheel 4C 'and the belt wheels 4, 4; The rotating shafts 1, which are arranged at positions where the timing belt 5 as the first string-like component is wound from the toothed portion 4b located on the lower outer periphery to the toothed portion 4a located on the upper outer periphery. Reference numeral 1 denotes a belt wheel 4C mounted on the other side end as a rotary drive component, and the belt wheel 4C and the belt wheel 4 as the fourth rotary passive component
And a timing belt 5C as a second cord-like component that transmits the power from the motor M from the belt wheel 4C to the belt wheel 4C 'by being wound between the belt wheel 4C'.

When the belt wheels 4, 4; 4, 4,... As the first rotating passive parts are arranged at one end of the rotating shafts 1, the predetermined arrangement means that a large number of rotating shafts 1,. For example, in order to share the two rotating shafts 1 rotating in the same direction and the rotating shafts 1 rotating in different directions to ensure the bidirectionality of conveyance of the articles F placed on the rollers 3, 3. In this embodiment, the rotating shaft 1 rotated in the same direction and the rotating shaft 1 rotated in the different direction are provided adjacent to each other in the longitudinal direction X of the conveyor C in pairs. In addition, between the two rotating shafts 1, 1; 1, 1..., The remaining rotating shaft 1 ′ mounts a belt wheel 4C ′ as a fourth rotating passive component at the other end. They are arranged in a state where they are installed.

In this embodiment, when the motor M is driven and rotated, the timing belt 5 as an endless string-like component is rotated. Therefore, as shown in FIG. Toothed portion 4a located on the upper outer periphery of the toothed portion 5a and the toothed portion 5b provided on the outer periphery.
And the toothed portions 4b located on the lower outer periphery are engaged with each other as belt wheels 4, 4;
.. Are rotated in a clockwise or counterclockwise direction, and the rotational driving force from the motor M is surely rotated without causing a slip and without a transmission loss. In this way, the rotating shafts 1, 1; 1, 1... Equipped with the belt wheels 4, 4; 4, 4... At one end are rotated clockwise or counterclockwise. Are rotated clockwise or counterclockwise.

Moreover, from the toothed portion 4a located on the outer periphery on the upper side of the belt wheels 4, 4 as the first rotary passive component, to the toothed portion 4b located on the outer periphery on the lower side, or located on the outer periphery on the lower side. Is arranged at a position where the inner or outer periphery of the timing belt 5 as the first cord-like component is wound from the toothed portion 4b to the toothed portion 4a located on the upper outer periphery,
From a belt wheel 4C as a rotary drive component mounted on the other end of the rotary shaft 1, the timing belt 5C is connected to an endless timing belt 5C for power transmission wound around one side of the belt wheel 4C. The rotational driving force from the single motor M is passively applied to the belt wheel 4C 'whose other side is wound.

Therefore, two sets make up a set in a clockwise or
Intermediate between rotating shafts 1,1; 1,1 ... rotated counterclockwise
And a belt wheel 4C 'is mounted on one side.
Are different from the rotating shafts 1, 1; 1, 1.
Is rotated clockwise or counterclockwise. And figure
As shown in Fig. 13, a single conveyor C
Area, for example, three areas K₁, K_Two, K_ThreeWhen classified into
Are supported by the large number of rotating shafts 1, 1.
Rollers 3, 3 ... rotate clockwise or counterclockwise
So that the two areas K on the left and right₁, K_ThreeIn
, The articles F placed on the rollers 3 and 3 are in the directions indicated by arrows a.
And left and right areas K₁, K _ThreeIn the middle of
Area K_ThreeIs placed on the roller 3 ...
The article F is transported as indicated by the arrow B. Thus, a single
In the conveyor C, the articles F, F, and F are indicated by arrows A and B.
Transported in two directions to separate or collect items
The line itself is rich in the flexibility of using conveyor combinations such as
Is not as large as a conventional roller conveyor, and
The installation of the conveyor line does not require a large area.

[0034]

As described above, the present invention supports the roller,
A large number of spindles attached to the frame, rotating passive components mounted in a predetermined arrangement on the side ends of the spindles, a motor as a drive source, and arranged outside the conveyor in the longitudinal direction,
A roller conveyer having a common endless string-shaped component for rotating the rotary passive component by passively driving the motor by being wound around the rotary passive component,
Is divided into several areas in the width direction, and
Rotary shaft Der support shaft mounted rotatably on the frame
The rotating passive component is mounted on a side end of the rotating shaft,
The upward outer periphery or the lower side periphery of the rotating passive component endless cord-like component is wound in engageably predetermined sequence,
Through the endless cord-like component of the shared rotating passively the single driving force of said motor to said rotary shaft in the region
Rotate articles in different directions to separate areas on a single conveyor
To convey articles in opposite directions, so that a single conveyor can convey articles in both directions, assemble or separate articles, and skew the conveyors. The line itself does not increase in scale, does not occupy a large area for laying, and the transport speed of articles can be easily controlled. Conveyors are easy to manufacture and assemble, parts can be shared, maintenance and inspection can be performed quickly and reliably, and the conveyor can be made thinner and more compact. It is convenient to assemble the apparatus with other machines, and the operability such as inspection and processing of articles can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a roller conveyor according to the present invention.

FIG. 2 is an enlarged side view showing a part of the same.

FIG. 3 is an enlarged plan view of the same.

FIG. 4 is an enlarged front view of the same.

FIG. 5 is an explanatory enlarged side view illustrating an example of a roller and a rotating shaft that supports the roller in the embodiment.

FIG. 6 is an explanatory enlarged side view showing another example of a roller and a rotating shaft supporting the roller.

FIG. 7 is an enlarged side view showing a part of the timing belt used in the embodiment.

FIG. 8 is an enlarged sectional view of the timing belt.

FIG. 9 is a side view showing a second embodiment of the roller conveyor of the present invention.

FIG. 10 is an enlarged side view showing a third embodiment of the roller conveyor of the present invention.

FIG. 11 is a partially cutaway enlarged plan view.

FIG. 12 is a side view showing a fourth embodiment of the roller conveyor of the present invention.

FIG. 13 is an enlarged plan view of the same.

FIG. 14 is an enlarged front view of the same.

FIG. 15 is a side view showing an example of this type of conventional roller conveyor.

FIG. 16 is a plan view of the same.

[Description of Signs] 1 Rotary shaft 1 'Rotary shaft 2 Frame 3 Roller 4 Belt wheel 4A Belt wheel 4B Belt wheel 4C Belt wheel 4C' Belt wheel 4a Toothed portion 4b Toothed portion 5 Timing belt 5A Timing belt 5B Timing belt 5C timing belt 7 sheave C conveyor F article M motor K ₁ region K ₂ region K ₃ region X longitudinal direction Y transverse direction

Claims (13)

[Claims] 1. A plurality of rotating shafts that support rollers and are rotatably mounted on a frame, rotating passive components provided in a predetermined arrangement at side ends of the rotating shafts, a motor as a driving source, The rotating shaft is rotated by the driving force of the motor and engages with a part of the outer periphery of the desired number of the rotating passive components so that the driving force of the motor can rotate the rotating shaft via the rotating passive component. A roller conveyor comprising a common endless string-shaped part provided along the direction. 2. The rotary passive component is mounted on at least one side of a rotary shaft, and the endless string-shaped component is engaged with an upper outer circumference or a lower outer circumference of the rotary passive component. The roller conveyor according to claim 1, wherein the rotation shafts adjacent to each other in the longitudinal direction are rotated in the same direction. 3. The rotary passive component is mounted on at least one side of a rotary shaft, and the endless string-shaped component is alternately engaged with an upper outer circumference and a lower outer circumference of an adjacent rotary passive component. The roller conveyor according to claim 1, wherein the rotating shafts that are adjacent in the longitudinal direction are rotated in mutually different directions by the joining. 4. A driving force of a motor is applied to a first rotary shaft and a first rotary passive component mounted on a first rotary shaft and a second rotary shaft, which are mounted adjacently in a longitudinal direction on a start end or an end of the conveyor. The endless string-shaped part to be rotated is alternately wound around the upper outer periphery or the lower outer periphery, and the third and subsequent rotating shafts are mounted in a desired arrangement every odd number or even number. A second rotary passive component and a third rotary passive component coaxially mounted on the second rotary passive component;
The roller conveyor according to claim 1, wherein each of the third rotating passive components is wound. 5. A plurality of rotating shafts rotatably mounted on a frame and supporting rollers, a first rotating passive component mounted on one end of the rotating shaft in a predetermined arrangement, and a driving source as a driving source. The driving force of the motor is alternately engaged with the motor and the outer periphery on the upper side and the outer periphery on the lower side of the rotary passive component at predetermined intervals, thereby reciprocating the rotating shaft via the first rotary passive component. Between the first end of the common string-shaped component provided along the longitudinal direction of the conveyor so as to be rotatable in the direction of rotation and the rotary shaft having the first rotary passive component at one end. A fourth rotary passive component mounted on the other end of the remaining rotary shaft provided in a desired arrangement, and from the upper outer circumference to the lower outer circumference of the first rotary passive component, or The direction change in which the first string-shaped component is wound from the outer circumference to the upper outer circumference. A rotary drive component mounted at the other end of the rotary shaft arranged at a further position, and a second cord wound between the rotary drive component and the fourth rotary passive component to transmit power from a motor Roller conveyer, which is made up of flat parts and can convey articles in both directions on a single conveyer. 6. A drive shaft for mounting the first rotating passive component at one end thereof is divided into a driving shaft rotating in the same direction and a rotating shaft rotating in a different direction, and these rotating shafts in the same direction. And two rotating shafts of different directions are provided adjacent to each other in the longitudinal direction of the conveyor, and a fourth rotating passive component is provided between the two rotating shafts. The roller conveyor according to claim 5, wherein the remaining rotation shafts provided at the side ends are arranged so as to be rotatable in opposite directions. 7. A timing belt in which a rotary passive component or a rotary drive component is a belt wheel, and an endless string-shaped component is formed on an inner periphery of a toothed portion meshed with the belt wheel, or on an inner periphery and an outer periphery. Or the rotary passive component or the rotary drive component is a sprocket, and the endless string-shaped component is a chain that meshes with the sprocket, or the rotary passive component or the rotary drive component is a belt wheel. 3. The endless string-shaped part is one of a flat belt, a round belt, and a V-belt wound around the belt wheel. A roller conveyor according to any one of claims 4 and 5. 8. A rotary passive component or a rotary drive component mounted on a rotary shaft is formed in several types having different diameters, and is endless by selecting and using a rotary passive component or a rotary drive component having a different diameter. 3. A desired arrangement in which the peripheral speed of the rotary passive component or the like with respect to the string-shaped component is controlled by controlling the peripheral dimension.
Alternatively, the roller conveyor according to any one of claims 2, 3, 4, and 5. 9. The method according to claim 1, wherein a single conveyor is divided into several regions in a longitudinal direction, and the regions are provided so that a rotation axis is rotatable in the same direction. Roller conveyor. 10. A single conveyor is divided into several regions in the width direction, and said regions adjacent in the width direction are provided so as to be rotatable in directions opposite to each other in rotation axis. Or the roller conveyor according to any one of claims 3 and 5. 11. A single conveyor is divided into several regions in the longitudinal direction, and the regions are provided such that the rotation shafts are rotated in the same direction or rotatable in opposite directions, and the single conveyor is arranged in the width direction. The region which is divided into several regions and which is adjacent in the width direction is provided with a rotation axis rotatably provided in the same direction or provided rotatably in opposite directions. The roller conveyor according to any one of claims 3 and 5. 12. The roller conveyor according to claim 1, wherein the roller is loosely inserted into the rotation shaft, and the roller is rotated by friction and engagement of the roller with the rotation shaft. 13. The roller conveyor according to claim 1, wherein the roller is fitted on a rotating shaft.