JP2000220727A - Toothed pulley, manufacture thereof, straight line moving device, industry device, work conveying system, and conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance a production efficiency with a fast conveying speed. SOLUTION: The conveying device for conveying a work W is moved along a belt 101 stretched between stations for processing the work W and is provided with a pulley 111 on which the belt 101 is wound and a driving means 113 for urging a rotation to the pulley 111. Since a mechanism comprising a fixing belt 101 and the pulley 111 for moving the device is adopted, a braking force is high and the device can be exactly stopped even if the device is moved at a high speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothed pulley used in a toothed belt transmission mechanism, a method of manufacturing the toothed pulley, or a linear moving device, an industrial device, and a work transfer system used in a production line or the like. About.

[0002]

2. Description of the Related Art In recent years, production lines for automobiles, home electric appliances and the like have been automated and production efficiency has been improved. In such a production line, a work (workpiece) is transported by a transport device such as a belt conveyor, and is sequentially supplied to a station that performs various processes such as component supply and component assembly.

FIG. 14 is a schematic diagram of such a transfer system, in which a work input from an entrance 1001 is transferred to a transfer path 1.
The transfer device 1005 reciprocating on the 006 sequentially transfers the work to the station 1003 or the station 1004, and finally discharges the workpiece after a series of processing to the outlet 1002.

[0004]

However, in the conventional transfer device, the transfer speed is about 0.5 m / sec, which is not sufficiently high. For this reason, there is a demand for further improving the production efficiency by increasing the transport speed.

[0005] Further, in the configuration of such a transfer device, a device employing a toothed belt transmission mechanism has been proposed. However, such a toothed belt transmission mechanism has a high belt traveling speed and a small gear diameter. In such a case, the toothed belt hits the toothed pulley, thereby generating a continuous collision sound, which is a problem.

As a device for reducing such noise, for example, Japanese Utility Model Laid-Open No. 58-136655 and Japanese Patent Laid-Open No.
No. 2243 has proposed this.

However, in these devices, a certain effect is recognized when the running speed of the belt is up to 2 m / sec, but noise cannot be sufficiently suppressed when the running speed is about 5 m / sec.

Accordingly, it is an object of the present invention to provide a toothed pulley capable of reducing noise even when the running speed of the belt is high, and a method of manufacturing the pulley, or a linear moving device and an industrial device using the same.

Another object of the present invention is to provide a high-speed transport speed,
Another object is to provide a device capable of improving production efficiency.

[0010]

According to the present invention, in a toothed pulley meshing with a toothed belt, a circular pulley body and a plurality of circumferentially formed pulley bodies formed on an outer peripheral surface of the pulley body. Teeth, a plurality of grooves formed in the tooth bottom direction of the pulley body along the tooth width direction, and a buffer member buried in the grooves and partially projecting outward from the tooth bottom surface. A toothed pulley is provided.

According to this means, when the toothed pulley meshes with the toothed belt, one tooth surface of the toothed pulley comes into contact with the other tooth surface of the toothed belt, and a part of the cushioning member and the toothed belt. The contact surface of the toothed belt does not come into contact with the tooth surface of the toothed belt only because the tooth surface of the toothed belt comes into contact with the tooth surface of the toothed belt. In the contact portion, a cushioning action is effected, and the generation of a collision sound is suppressed.

In the toothed pulley according to the present invention, the cushioning member can be formed in a substantially cylindrical shape using a nonmetallic material.

In this case, the cushioning member can be easily embedded in the plurality of grooves formed in the pulley body, and the contact portion between the cushioning member and the tooth tip surface of the toothed belt is in linear contact with the contact area. This reduces the occurrence of collision noise.

According to the present invention, in a method of manufacturing a toothed pulley meshing with a toothed belt, a plurality of teeth are provided on an outer peripheral surface along a circumferential direction by a drawing die or an extrusion die, and a tooth width is formed on each tooth bottom. Forming a cylindrical member having a plurality of grooves along the direction, a buffer member is penetrated in the longitudinal direction so as to partially protrude outward from the tooth bottom surface in each groove of the cylindrical member, and is buried; A method for manufacturing a toothed pulley is provided, in which a cylindrical member is cut into a predetermined length to form a circular pulley.

According to this means, the toothed pulley can be machined with high precision, and the machining can be facilitated and the cost can be reduced.

Further, according to the present invention, a guide rail linearly provided on a frame, a moving body movably supported by the guide rail, and a toothed belt having each end fixed to the frame A toothed pulley rotatably supported by the moving body and meshing with the toothed belt; and driving means mounted on the moving body to rotationally drive the toothed pulley. A circular pulley body, a plurality of teeth formed along the circumferential direction on the outer peripheral surface of the pulley body, and a plurality of grooves formed along the face width direction at each tooth bottom of the pulley body. And a buffer member buried in the groove portion and partially protruding outward from the tooth bottom surface.

According to this means, when the toothed pulley is rotationally driven by the driving means, the toothed pulley rolls while meshing with the toothed belt, whereby the moving body is linearly moved on the frame along the guide rail. Go to in this case,
When the toothed belt and the toothed pulley engage with each other, the contact area and the contact point of each other are small, and the cushioning member acts on the contact portion between the toothed surface of the toothed belt and the cushioning member. The noise generation is suppressed even when the vehicle runs on the road, and the environment inside and outside the factory is not disturbed.

According to the present invention, a guide rail linearly provided on a frame, a movable body movably supported by the guide rail, and front and rear end portions of the guide rail in the frame are provided. A pair of toothed pulleys rotatably supported respectively, and an endless toothed belt which is hung around the pair of toothed pulleys, supported circulatingly and connected to the moving body, and A rotation driving unit mounted on the frame to rotationally drive at least one of the pair of toothed pulleys, wherein the toothed pulley has a circular pulley body,
A plurality of teeth formed along the circumferential direction on the outer peripheral surface of the pulley body; a plurality of grooves formed along the tooth width direction at each tooth bottom of the pulley body; and a part embedded in the grooves. And a buffer member protruding outward from the tooth bottom surface.

According to this means, when the toothed pulley is rotationally driven by the driving means, the toothed belt meshing with the toothed pulley circulates, thereby moving the moving body linearly on the frame along the guide rail. Moving. In this case, when the toothed belt and the toothed pulley are engaged with each other, the contact area and the contact point of each other are small, and the buffering member operates at the contact portion between the cushioning member and the tooth tip surface of the toothed belt. Even if the body runs at high speed, the generation of noise is suppressed, and the environment inside and outside the factory is not disturbed.

According to the present invention, there is provided an industrial apparatus using the above-mentioned linear moving device, wherein a work table movable in a plurality of different directions is provided on the moving body, and the work table has means for working the work. An industrial device characterized by being provided is provided.

According to this means, even if the work means of the work provided on the work table moves in each direction to perform various works, the generation of noise is suppressed, and the environment inside and outside the factory is disturbed. There is no.

According to the present invention, there is also provided a work transfer system for transferring a work between stations for processing the work, wherein the belt is stretched substantially linearly between the stations; A transfer device that moves along the belt, and the transfer device includes a pulley around which the belt is wound, and a driving unit that urges the pulley with a rotational force. Provided.

According to this means, since the stationary belt and the pulley that rolls on the belt are used to urge the moving force of the transfer device, the braking force is high and the stop can be suddenly performed. Can move at high speed. Therefore, the work can be quickly conveyed, and the production efficiency and the work processing balance between stations can be improved. Work processing balance refers to the degree to which a plurality of works can be processed in parallel by a plurality of workstations.

[0024] In the system of the present invention, a rail provided along the belt may be provided, and the transport device may move on the rail.

Further, in the system of the present invention, the transfer device may include a pressing tool for pressing the belt on the pulley to apply a constant tension to the belt. Examples of the pressing tool include a roller disposed before and after the pulley in the direction of the belt.

In the system of the present invention, the belt may be a toothed belt, and the pulley may be a toothed pulley.

In the system of the present invention, a plurality of the belts are provided in parallel with each other, and the transport device is provided for each of the plurality of belts, and the transport devices move on the same track. As such, the position of each of the pulleys may be arranged.

[0028] In the system of the present invention, the transfer device may include control means for controlling a work transfer procedure to each of the stations.

According to the present invention, there is also provided a transfer device for moving along a belt stretched between stations for processing a work and transferring the work, wherein the pulley around which the belt is wound And a driving unit for urging the pulley to apply a rotational force to the pulley.

According to the present invention, there is also provided a transfer device for moving along a rack provided between stations for processing a work and transferring the work, wherein the pinion meshes with the rack; And a drive unit for urging the pinion with a rotational force.

[0031]

Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a main part of a toothed pulley according to an embodiment of the present invention, FIG. 2 is a perspective view of the pulley of this embodiment, and FIG. 3 is another toothed meshing with the toothed pulley of this embodiment. FIG. 4 schematically shows a perspective view of a main part of the belt and a method for manufacturing the toothed pulley of the present embodiment.

As shown in FIGS. 1 and 2, the toothed pulley 11 of this embodiment forms a toothed belt transmission mechanism by meshing with a toothed belt 21. This toothed pulley 11
In the figure, the pulley body 12 has a circular shape, and a mounting hole 13 through which a support shaft (not shown) penetrates is formed at the center. A plurality of teeth 14 are formed on the outer peripheral surface of the pulley body 12 at a predetermined pitch along the circumferential direction, and a plurality of grooves 15 are formed on each tooth bottom along the face width direction. A cylindrical cushioning member 16 penetrates and is embedded in each groove 15, and a part of each cushioning member 16 is fixed by protruding outward from the tooth bottom surface 17.

In this case, the pulley body 12 uses a metal material such as aluminum, while the cushioning member 16 can use a nonmetal material such as a synthetic resin or urethane.

On the other hand, as shown in FIG. 1, the toothed belt 21 has a tensile member 22 embedded therein and a plurality of teeth 23 formed at a predetermined pitch along the longitudinal direction inside. The teeth 23 are formed of hard rubber. In this case, the teeth 14 of the toothed pulley 11 are set smaller than the tooth grooves of the toothed belt 21.

Accordingly, the toothed pulley 11 is
Are engaged with each other, the tooth surface 14a on the front side in the rotation direction of the toothed pulley 11 is the tooth surface 2 on the rear side in the rotation direction of the toothed belt 21.
By making contact with 3b (contact portion A), the rotational force of the toothed pulley 11 can be transmitted to the toothed belt 21. At this time, a gap a is formed between the tooth surface 14b on the rear side in the rotation direction of the toothed pulley 11 and the tooth surface 23a on the front side in the rotation direction of the toothed belt 21. At this time, a part of the cushioning member 16 fixed to the toothed pulley 11 comes into contact with the tooth tip surface 23c of the toothed belt 21 (contact portion B). A gap b is formed between the tooth bottom 24 of the toothed belt 21 and a gap c is formed between the tooth tip 21c of the toothed belt 21 and the tooth bottom 17 of the toothed pulley 11.

For this reason, the toothed pulley 11 and the toothed belt 2
1, the contact portions between the two are a contact portion A between the tooth surface 14a and the tooth surface 23b, a cushioning member 16 and a tooth tip surface 23c.
And the contact area B and the contact area of both are reduced as a whole. In addition, a buffering action is performed at the contact portion B between the cushioning member 16 and the tooth tip surface 23e of the toothed belt 21, and the generation of collision noise here is suppressed. Therefore, even when the diameter of the toothed pulley 11 is reduced or driven at a high speed, generation of noise during operation can be reliably suppressed.

In the above description, the toothed belt 21 is formed integrally with the tensile member 22 embedded therein, but as shown in FIG. 3, a single belt 27 having teeth 26 formed thereon is connected. A chained toothed belt 29 connected by a shaft 28 to form a chain may be used. Although the cushioning member 16 embedded in the toothed pulley 11 has a cylindrical shape, the shape is not limited to this. For example, the cushioning member 16 may have a cylindrical shape or an elliptical or semicircular cross section. A plurality of spheres may be fixed.

Here, a method of manufacturing the above-described toothed pulley 11 will be described. First, as shown in FIG.
The extrusion die 31 (or drawing die) has an opening 32 corresponding to the pulley main body 12 having a plurality of teeth 14 and a plurality of grooves 15 formed on an outer peripheral surface thereof, and is formed by extrusion using an aluminum material. Then, a cylindrical member 33 having a plurality of teeth 14 and a plurality of grooves 15 on the outer periphery is formed. in this case,
The mounting hole 13 is formed by pressing an inexpensive cylindrical member such as iron (not shown) into the center.

Next, as shown in FIG. 4 (b), a cylindrical cushioning member 16 is formed in each groove 15 of the cylindrical member 33 so that a part of the outer peripheral portion projects outwardly from the tooth bottom surface 17. Is penetrated in the longitudinal direction and is buried. And finally, FIG.
As shown in (c), the cylindrical pulley 11 having a circular shape can be formed by cutting the cylindrical member 33 in which the buffer member 16 is fixed to the groove 15 to a predetermined length.

Therefore, the toothed pulley can be processed with high precision by reducing the deformation due to distortion even in a complicated shape, and a relatively small amount of relatively expensive material such as aluminum can be used, thereby reducing the cost. Can be achieved. In addition, it is easier to manufacture than cutting and bonding with an adhesive, etc.
Strength can also be improved.

The above-described belt transmission mechanism using the toothed pulley 11 can be applied in a wide variety of ranges.
Applicable to linear moving devices and industrial equipment. FIG. 5 shows an outline of a linear moving device using the toothed pulley of the present invention, FIG. 6 shows an outline of an industrial device using the linear moving device of the present invention, and FIG. 7 shows a cross section VII-VII of FIG.

In the linear moving device of this embodiment, FIG.
As shown in FIG. 7, linear guide rails 42a and 42b are fixed to the upper surface and the side surface of the frame 41, respectively. The guide rails 42a and 42b are provided as moving bodies via linear bearings (not shown). Are movably supported. On the upper surface of the frame 41, a toothed belt 44 which is parallel to the guide rails 42a and has substantially the same structure as the above-described toothed belt 21 is disposed. Are fixed to the frame 41 by a fixing member 45.
On the other hand, the slider 43 has a toothed pulley
The base end of a support shaft 46 to which the belt 1 is fixed is rotatably mounted, and the toothed pulley 11 meshes with the lower surface of the toothed belt 44. A support roller 47 is rotatably supported on both sides of the toothed pulley 11 on the slider 43, and the support roller 47 is supported on the upper surface of the toothed belt 44 so that the toothed pulley 11 Toothed belt 4
4 ensures proper meshing. And the support shaft 4
A driven gear 48 is fixed to 6, and a driving gear 50 of a driving motor 49 as driving means mounted on the slider 43 meshes with the driven gear 48.

Accordingly, when the drive motor 49 is driven, the rotation of the drive gear 50 is transmitted to the toothed pulley 11 via the driven gear 48 and the support shaft 46, and the toothed pulley 11 remains engaged with the toothed belt 44. By rolling, the slider 43 can move on the frame 41 along the guide rails 42a and 42b. And the drive motor 4
The moving direction of the slider 43 can be changed by changing the rotation direction of the drive gear 50 by the drive gear 9. In this case, by using the above-described toothed pulley 11 (see FIGS. 1 and 2) as the toothed pulley, the slider 43 is moved at 2.5 m /
Even when the vehicle runs at a speed of s or more, the generation of meshing noise between the toothed pulley 11 and the toothed belt 44 can be suppressed.

In the industrial apparatus according to the present embodiment, as shown in FIGS. 6 and 7, the upper surface and the side surface of the box-shaped frame 51 are formed with linear guide rails 52 respectively.
a and 52b are fixed, and this guide rail 52
A slider 53 as a moving body is movably supported by a and 52b via a linear bearing (not shown). A pair of toothed pulleys 11a and 11b are rotatably supported in the frame 51 corresponding to the front and rear ends of the guide rails 52a and 52b, respectively. The toothed pulleys 11a and 11b have endless teeth. The attached belt 54 is hung so as to mesh with each other, and is supported so as to be freely circulated. A connecting member 55 is fixed to a lower portion of the slider 53, and the connecting member 55 is connected to the toothed belt 54 through an elongated hole 56 formed in the frame 51. Further, a drive motor 57 as drive means is attached to the frame, and a toothed pulley 11a is fixed to a tip end of the drive shaft 58.

An elevating body 59 is supported on the slider 43 so as to be able to move up and down, and can be moved up and down by an elevating motor 60. A pivoting section (work table) 61 is pivotally supported by the elevating body 59 and can be pivoted by a pivoting motor 62. The pivoting section 61 is provided with a work means such as a robot (not shown) as a work means for a work. Hands and processing tools are provided. In the drawing, 63 is a plurality of guide rollers for preventing the toothed belt 54 from loosening,
64 is a guide of an electric cable for supplying electric power to each of the motors 60 and 62.

Accordingly, when the drive motor 57 is driven, the toothed pulley 11 rotates via the drive shaft 58, and the toothed belt 54 meshing with the toothed pulley 11 circulates, thereby moving the slider 53 to the guide rail 52a. , 52b along the frame 51. And while raising and lowering the elevating body 59 by the elevating motor 60,
By turning the turning part 61 by the turning motor 62, the robot hand and the processing tool can be moved to a required position and operated, and various operations can be performed. In this case, as described above, by using the above-described toothed pulley 11 (see FIGS. 1 and 2) for the toothed pulleys 11a and 11b, even if the slider 53 is driven at high speed, the toothed pulleys 11a and 11b can be moved. 11
The occurrence of meshing noise between the toothed belt 54 and the toothed belt 54 can be suppressed.

Next, another embodiment of the present invention will be described.

FIG. 8 is a plan view schematically showing a work transfer system 100 according to another embodiment.

The work transfer system 100 is a system for transferring a work to be processed between the stations 103 and 104. The work transfer system 100 moves along the belt 101 provided substantially linearly. The apparatus includes a work transfer device 110 and rails 102 provided on both sides of the work along a belt 101.

The stations 103 and 104 are various devices for performing a certain process on a work.
It performs processing such as supply of parts to the work, assembly of the work, press-fitting of parts, inspection, welding, bolting, and the like. The work is sequentially transported to each of the stations 103 and 104, and these processes are performed.

The belt 101 is provided at both ends and is stretched by two fixing members 101a fixed to the floor. The belt 101 is made of a material having a certain degree of flexibility, such as rubber or a woven cloth impregnated with rubber, polyester cord, or the like, or a belt-like material made of a caterpillar or the like. Sure move,
For stopping, a V-shaped belt, a toothed belt or the like is particularly preferable.

The rail 102 supports the transfer device 110 and assists its stable movement.

The transfer device 110 is for transferring the work between the stations 103 and 104 by placing the work thereon and reciprocating along the belt 101.

FIG. 9 is a side view schematically illustrating the structure of the transfer device 110, and FIG. 10 is a front view schematically illustrating the structure of the transfer device 110.

The transfer device 110 includes a frame 116, a pallet 114 provided on the frame 116, a pulley 111 around which the belt 101 is wound, and a pulley 111.
And a guide roller 112 that presses the belt 101 to apply a constant tension to the belt 101 on the pulley 111.

The pallet 114 is for supporting the work W at a predetermined position, for example, by inserting a pin 114a into a positioning hole provided in the work W. Note that a so-called short conveyor may be provided between the pallet 114 and the frame 116, and the work W supported by the pallet 114 by the short conveyor may be transferred to the station 103 or the like, or returned from the station 103 or the like.

The frame 116 has four wheels 115. The transfer device 110 is connected to the rail 1 via wheels 115.
The weight is supported on the rail 102 by being placed on the rail 02, and reciprocates on the rail 102.

In this embodiment, the transport device 110 is mounted on the rail 102. However, the present invention is not limited to this. The transport device 110 may be suspended from a ceiling or the like, or may be directly mounted on the floor via wheels. You may support it.

The driving section 113 has a motor 113a and drives the pulley 111 to rotate via a gear group 113b. The gear group 113b includes the motor 1
This is for transmitting the power of 13a to the pulley 111. In addition, for example, a belt transmission can also be adopted.

The drive unit 113 can control the motor 113a by providing a sensor such as an encoder for measuring the rotation amount of the motor 113a in order to control the movement amount of the transfer device 110. The control of the movement amount of the transfer device 110 may be performed, for example, in each station 1
A mark may be provided on the rail 102 at a position such as 03, and the mark may be read by a sensor provided on the transport device 110.

The driving unit 113 or the frame 11
6 may be provided with control means such as a computer for controlling the movement amount of the transfer device 110 and controlling the procedure for transferring the work W to each station 103 and the like.
If such a control means is mounted inside the transfer device 110 instead of outside and is made self-propelled, and the control of the transfer device 100 from outside is reduced as much as possible, only electric power is supplied to the transfer device 110. In addition, the weight of the cable connected to the transport device 110 can be reduced and simplified.

The pulley 111 is rotatably supported by the driving section 113, and can rotate by receiving the driving force of the motor 113a. A belt 101 that is stretched on the floor and is stationary is wound around the pulley 111, and the rotation of the pulley 111 allows the transport device 110 to move so that the belt 101 can be pulled. As the type of the pulley 111, for example,
V pulleys and toothed pulleys can be employed.

The guide roller 112 is a cylindrical roller that is rotatably supported by the drive unit 113.
Are provided before and after the pulley 111 along the direction of. The guide roller 112 includes a belt 101 wound around a pulley 111 and a pulley 11.
The belt 101 is pressed in the floor direction such that the belt 111 presses the pulley 111 from above to improve the contact area with the belt 1 and adjust the tension. With the provision of the guide rollers 112, the belt 101 is wound around the pulley 111 with a constant tension, and the rotation of the pulley 111 is transmitted to the belt 101 satisfactorily.

It should be noted that the rotation of the pulley 111
If the belt 101 is properly transmitted, a roller other than the guide roller 112 may be employed.
When the rotation of is transmitted to the belt 101 satisfactorily, this need not be provided.

In such a transport device 110, the belt 1
01 is stationary, and the belt 101 can be moved by pulling it by rotating the pulley 111, so that the resistance during braking is large. If the rotation of the pulley 111 is stopped, the transport device 110 is immediately stopped. Can be done. Therefore, it is possible to stop the work W more quickly than in the conventional apparatus, and to move the work W at a high speed, for example, 5 m
/ Sec, and can stop suddenly at the position of the station 103 or the like.

Therefore, in the work transfer system 100,
The work W can be efficiently conveyed to each station 103 and the like. In particular, since a plurality of works W can be processed in parallel, productivity or work processing balance can be improved.

In the transfer device 110 described above, a structure including the belt 101 and the pulley 111 is adopted for the movement. However, from the viewpoint of enabling quick stop, a rack is used instead. And a pinion can also be used.

FIG. 11 shows a rack and a pinion.
It is a side view which shows the outline of the conveyance apparatus 210.

The transfer device 210 includes a frame 216, a pallet 214 provided on the frame 216, a pinion 215 a meshing with the rack 212, and a pinion 215.
and a drive unit 213 for urging the rotational force to a.

The frame 216 has four wheels 215, and the transfer device 210 is mounted on the rail 102 via the wheels 215, so that its own weight is reduced to the rail 102.
, And reciprocate on the rail 102.

The rack 212 is fixed to the floor instead of the belt 101 described above.

In the transport device 210 having such a configuration, the rack 2 meshing with the pinion 215a is rotated by rotation of the pinion 215a.
It can reciprocate by receiving a reaction force from 12.

Next, a work transfer system using a plurality of the transfer devices 110 will be described.

FIG. 12 shows a transport device 110 having the above-described configuration.
FIG. 1 is a plan view schematically showing a work transfer system when two (110a and 110b) are used.

In this work transfer system, two belts 101 are provided in parallel with each other, corresponding to the provision of the two transfer devices 110a and 110b.

Then, each of the transfer devices 110a and 110b
Have pulleys 111 arranged to move on the same track.

That is, the pulley 111 of the transport device 110a is arranged so that the pulley 111 of the transport device 110a is positioned on one belt 101.
The pulley 111 of the transport device 110b is arranged on the other belt 101 such that the pulley 111 of the other transport device 110b is positioned.

FIG. 13A is a view of the transport device 110a as viewed from the line AA in FIG. 12, and FIG.
FIG. 13 is a view of the transport device 110b as viewed from a line BB in FIG.

As described above, in a work transfer system provided with a plurality of transfer devices, a plurality of works are simultaneously transferred, for example, a certain work is transferred between certain stations and another work is transferred between different stations. thing,
Is possible, and the production efficiency can be improved as compared with the case where one unit is used.

In the examples shown in FIGS. 12 and 13, the number of transporting devices is two, but it goes without saying that more than two transporting devices may be provided. In this case, the number of belts 101 is increased in accordance with the number of transport devices.

Although the preferred embodiments of the present invention have been described above, it goes without saying that the configurations and the like in each embodiment can be appropriately combined between the embodiments without departing from the spirit of the present invention. Absent.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a toothed pulley according to an embodiment of the present invention.

FIG. 2 is a perspective view of a pulley according to the present embodiment.

FIG. 3 is a perspective view of a main part of another toothed belt that meshes with the toothed pulley of the present embodiment.

FIG. 4 is a schematic view illustrating a method for manufacturing the toothed pulley of the present embodiment.

FIG. 5 is a schematic view of a linear moving device using the toothed pulley of the present invention.

FIG. 6 is a schematic diagram of an industrial device using the linear moving device of the present invention.

FIG. 7 is a sectional view taken along line VII-VII of FIG. 6;

FIG. 8 is a plan view schematically showing the work transfer system 100.

FIG. 9 is a side view schematically illustrating the structure of the transfer device 110.

FIG. 10 is a front view schematically illustrating the structure of a transfer device 110.

FIG. 11 is a side view schematically showing a transfer device 210.

FIG. 12 is a plan view schematically showing a work transfer system when two transfer devices 110 are used.

FIG. 13 (a) is a transport device 11 viewed from a line AA in FIG.
It is a figure of 0a. FIG. 13 (b) is a view of the transport device 110b as viewed from a line BB in FIG.

FIG. 14 is a schematic view of a conventional transport system.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akio Takamiya 3-9-20 Togoshi, Shinagawa-ku, Tokyo Inside Hirata Kiko Co., Ltd. (72) Mio Kikukawa 3-9-1-20 Togoshi, Shinagawa-ku, Tokyo Hirata Kiko Co., Ltd.

Claims (14)

[Claims] 1. A toothed pulley that meshes with a toothed belt, wherein the pulley body has a circular shape, a plurality of teeth formed on an outer peripheral surface of the pulley body along a circumferential direction, and each root of the pulley body. A toothed pulley, comprising: a plurality of grooves formed along the tooth width direction; and a buffer member buried in the grooves and partially projecting outward from the tooth bottom surface. 2. The toothed pulley according to claim 1, wherein the cushioning member is formed in a substantially cylindrical shape using a non-metallic material. 3. A method of manufacturing a toothed pulley meshing with a toothed belt, comprising: a pulling die or an extrusion die having a plurality of teeth on an outer peripheral surface along a circumferential direction, and a plurality of teeth on each tooth bottom along a tooth width direction. A cylindrical member having a groove is formed, and a buffer member is penetrated in the longitudinal direction so as to partially protrude outward from the tooth bottom surface in each groove of the cylindrical member, and is buried in the cylindrical member. A method for manufacturing a toothed pulley, comprising forming a circular pulley by cutting the pulley. 4. A guide rail linearly provided on a frame, a moving body movably supported by the guide rail, a toothed belt having each end fixed to the frame, A toothed pulley rotatably supported and meshing with the toothed belt; and a driving means mounted on the moving body to rotationally drive the toothed pulley, wherein the toothed pulley has a circular shape. A pulley body; a plurality of teeth formed on an outer peripheral surface of the pulley body along a circumferential direction; a plurality of grooves formed along a tooth width direction on each tooth bottom of the pulley body; And a cushioning member partly protruding outward from the tooth bottom surface. 5. A guide rail linearly provided on a frame, a movable body movably supported by the guide rail, and a rotatable support corresponding to front and rear ends of the guide rail in the frame. A pair of toothed pulleys, an endless toothed belt wound around the pair of toothed pulleys so as to mesh with the pair of toothed pulleys, supported circulatingly and connected to the moving body, and mounted on the frame. Rotating drive means for rotating and driving at least one of the pair of toothed pulleys, wherein the toothed pulley has a circular shape, and a circumferentially extending circumferential surface of the pulley body. A plurality of teeth formed; a plurality of grooves formed along the tooth width direction in each tooth bottom of the pulley body; a buffer buried in the grooves and partially protruding outward from the tooth bottom surface Element And a linear moving device. 6. An industrial apparatus using the linear moving device according to claim 4 or 5, wherein a work table movable in a plurality of different directions is provided on the moving body, and the work table is provided on the work table. An industrial device provided with a working means. 7. A work transfer system for transferring a work between stations for processing the work, comprising: a belt stretched substantially linearly between the stations; and a transfer moving along the belt. A work transport system, comprising: a pulley around which the belt is wound; and a driving unit that urges the pulley with a rotational force. 8. The work transfer system according to claim 7, further comprising a rail provided along the belt, wherein the transfer device moves on the rail. 9. The work according to claim 7, wherein the transfer device includes a pressing tool that presses the belt on the pulley to apply a constant tension to the belt. Transport system. 10. The work transfer system according to claim 7, wherein the belt is a toothed belt, and the pulley is a toothed pulley. 11. A plurality of belts are provided in parallel with each other, and the transport device is provided for each of the plurality of belts, and the transport devices move on the same track.
11. The work transfer system according to claim 7, wherein the positions of the respective pulleys are arranged. 12. The work transfer system according to claim 7, wherein said transfer device includes control means for controlling a work transfer procedure for each of said stations. 13. A conveying device for moving along a belt stretched between stations for processing a work and conveying the work, the pulley around which the belt is wound, and the pulley being rotated by the pulley. A transfer device comprising: a driving unit for urging a force. 14. A transfer device that moves along a rack provided between stations for processing a work and transfers the work, wherein a pinion that meshes with the rack, and a rotational force is applied to the pinion. A transfer device comprising: a driving unit for biasing.