JPH1179359A - Shaft support body for roller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably support roller shafts of both linear roller and tapered roller. SOLUTION: Both ends of a roller shaft is supported by a central hole part 46, a hole bottom face 47a of an upwardly enlarged hole part 47, and a hole top face 48b of a downwardly enlarged hole part 48 so that a linear roller is supported on a conveyor frame through a shaft support body 40 by making a roller axis horizontal. Since one end of the roller shaft is supported by the central hole part 46, a hole top face 47b of the upwardly enlarged hole part 47, and a hole bottom face 48a of the downwardly enlarged hole part 48, a tapered roller is supported on the conveyor frame through the shaft support body 40 by tilting a roller axis thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft support for a roller used for a roller conveyor which is installed on a ceiling side or a floor side or incorporated in a shelf facility, for example.

[0002]

2. Description of the Related Art Conventionally, as a roller conveyor of this kind, there has been provided an arrangement as disclosed in, for example, US Pat. No. 5,582,286. In this conventional configuration, a straight or tapered drive roller or transport roller is provided between a pair of left and right side rail housings. According to this conventional type, since each roller is fixed to the side rail housing, when changing the roller pitch, a hole for supporting the roller shaft must be formed in the side rail housing according to the position. Therefore, it is not easy to change the roller pitch.

[0003] In order to change the roller pitch, for example, a configuration as disclosed in Japanese Patent Application Laid-Open No. 117832/1995 is provided. In this conventional configuration, a bracket is provided on the support frame so as to be slidable and fixable in the length direction of the support frame, and the bracket has a shaft fitting portion capable of supporting a roller shaft of a straight roller. Are formed.

[0004]

According to the conventional configuration in which the pitch can be changed, the bracket is formed so as to be capable of supporting the roller shaft of the straight roller. Cannot be supported stably. Therefore, a bracket for a tapered roller is prepared as a bracket. Therefore, when assembling and constructing a conveyor line having a straight roller conveyor or a curved roller conveyor, at least two types (a plurality of types) of brackets must be prepared, which is troublesome in production, management and the like.

Therefore, the invention according to claim 1 of the present invention is applicable to both a straight roller and a tapered roller.
An object of the present invention is to provide a roller shaft support that can stably support the roller shaft.

[0006]

According to another aspect of the present invention, there is provided a shaft support for a roller according to the present invention, which is disposed on a conveyor frame side to support the roller. A through hole that allows the roller shaft to be inserted in the thickness direction that is the direction of the roller axis, and the through hole has a shape similar to the cross section of the roller shaft at the center in the thickness direction. Is formed in the central hole portion, on one side in the thickness direction with respect to the central hole portion, the upper surface of the hole is formed in the upper extension hole portion gradually becomes higher with respect to the hole bottom surface of the same level as the central hole portion, On the other side in the thickness direction, the bottom surface of the hole is formed in a lower extension hole which gradually lowers with respect to the top surface of the hole at the same level as the center hole.

Therefore, according to the first aspect of the present invention, both ends of the roller shaft are supported by the central hole, the bottom surface of the upper extension hole, and the top surface of the lower extension hole, so that the roller shaft is supported via the shaft support. The rollers may be supported on a conveyor frame with their roller axes horizontal. Then, by supporting one end of the roller shaft by the center upper hole, the upper surface of the upper expansion hole, and the lower surface of the lower expansion hole, the roller is rotated through the shaft support so that the roller axis is inclined. It can be supported on a conveyor frame.

According to a second aspect of the present invention, there is provided a shaft support for a roller according to the first aspect, wherein the through holes are formed at a plurality of vertical positions. It is.

Therefore, according to the second aspect of the present invention, the roller shaft is supported by using the upper through hole opposed to each other and the roller shaft is supported by using the lower through hole. The level of the conveying surface by the group may be changed in a plurality of stages in the vertical direction, or may be changed to a group of rollers having different diameters. Also, by changing the upper and lower levels of the through holes used in the left and right shaft supports, the tapered roller can be disposed with its transport surface being horizontal.

According to a third aspect of the present invention, there is provided a shaft support for a roller according to the first or second aspect, wherein the insertion portion of the roller shaft has a rectangular cross section, and penetrates according to this cross sectional shape. It is characterized in that holes are formed.

Therefore, according to the third aspect of the present invention, the rotation of the roller shaft can be automatically stopped at the same time when the roller shaft is inserted into the through hole. Further, the shaft support for the roller according to claim 4 of the present invention, in the configuration according to any one of claims 1 to 3, wherein the shaft support slides in the frame length direction with respect to the conveyor frame. It is characterized by being freely fitted.

According to the fourth aspect of the present invention, after the shaft support is slid in the frame length direction with respect to the side frame, the shaft support is fixed to the side frame.
The rollers may be arranged at a desired pitch in the length direction of the side frame.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
A driven roller conveyor suspended and supported on the ceiling side will be described with reference to FIGS.

3 to 7, a straight roller conveyor 1 includes a conveyor frame 9 having a pair of left and right side frames 10 and a plurality of straight rollers 50 supported between the left and right side frames 10 in the front-rear direction. And a driving device 56 that drives at least a part of the straight rollers 50 to form the transport path 2 in the front-rear direction. The conveyor frame 9 includes a pair of left and right side frames 10 and a lower frame 30 for connecting the lower inner surfaces of the side frames 10.

Each side frame 10 has a horizontal top plate 1.
1, an upper inner plate portion 12 extending downward from the inner end portion of the top plate portion 11, and an intermediate plate portion 13 extending outward from the lower end portion of the upper inner plate portion 12 and parallel to the top plate portion 11.
A lower outer plate portion 14 extending downward from an outer end portion of the intermediate plate portion 13 and an inwardly extending lower end portion portion of the lower inner plate portion 14 and parallel to the top plate portion 11 and the intermediate plate portion 13. The bottom plate portion 15 and the lower inner plate portion 16 that extends upward from the inner end of the bottom plate portion 15 are formed in a substantially S-shaped cross section (inverted S-shaped shape).

The side frame 10 has a top plate 11
And a first duct portion 17 surrounded by the upper inner plate portion 12 and the intermediate plate portion 13 is formed at an upper position.
An open first dovetail portion 18 is formed on the inner surface side of the upper inner plate portion 12 in the state of being located inside the upper inner plate portion 12.
A first open portion 19 is formed between the outer ends of the top plate portion 11 and the intermediate plate portion 13, and the first open portion 19 opens the first duct portion 17 outward. At the outer ends of the top plate 11 and the intermediate plate 13 forming the first opening 19, groove-shaped locking portions 20, 21 are formed to face each other.

The side plate 10 has an intermediate plate 1
3, lower outer plate part 14, bottom plate part 15, and lower inner plate part 16
A second duct portion 22 surrounded by is formed below. A second open portion 23 is formed between the inner end of the intermediate plate portion 13 and the upper end of the lower inner plate portion 16, and the second duct portion 22 is opened inward by the second open portion 23. . In addition, a second dovetail groove portion 24 that is opened inward is formed in a corner portion formed by the bottom plate portion 15 and the lower inner plate portion 16,
The bottom plate 15 has a third dovetail 25 which is opened downward.
Are formed.

Further, an inwardly opened slit groove 26 is formed in the upper edge portion 16a of the lower inner plate portion 16, and a positioning connection is formed on the lower surface side of the top plate portion 11 and the upper surface side of the bottom plate portion 15. Is formed.

The side frame 10 having the above structure is
The sections at any point in the length direction have the same shape, and are integrally formed by aluminum molding or the like.
In addition, a penetration portion 28 for wiring or the like is separately formed at a desired position in the intermediate plate portion 13 of the side frame 10. The connection between the side frame 10 and the lower frame 30 is performed by screwing the bolt body 32 passing through the end of the lower frame 30 from the inside to the nut body 31 with the nut body 31 positioned in the second dovetail groove 24. It can be done by combining them.

A controller 35 is located in the first duct portion 17. The controller 35 uses a connecting member 36 such as a nut body or a bolt body utilizing the first dovetail groove 18 to form an upper inner plate. It is attached to the part 12 side. At this time, the mounting operation can be easily performed from the outside using the first opening portion 19.

The first opening 19 is closed by a flexible cover 37 made of, for example, a synthetic resin. The closed posture is maintained by the elastic restoring force in a state where the upper edge and the lower edge are fitted into the locking portions 20 and 21. And cover 3
7 can be disengaged from the side frames 10 by disengaging the upper and lower edges from the locking portions 20 and 21 by bending them against elasticity, as shown by the phantom line in FIG. Can be worn.

In FIGS. 1, 2, 4 and 6, a shaft support 40 for supporting a roller shaft (described later) is located in the second opening 23. The shaft support body 40 is formed of a synthetic resin into a rectangular plate shape, and a fitting groove 41 that is long and open in a short direction (width direction) W is formed on both surfaces in a long direction (vertical direction) H thereof. ing.

The shaft support 40 is provided with these fitting grooves 41.
The lower edge 13a from the intermediate plate 13 forming the second opening 23 and the upper edge 16 of the lower inner plate 16
By being fitted to a, it is slidable in the frame length direction with respect to the side frame 10. Here, as for the back surface (bottom surface) 42 of the fitting groove 41, half of the short direction W is formed in the straight surface portion 42a, and the other half is formed in the straight surface portion 42a.
It is formed in the curved surface part 42b which curves inward following a.

The pair of pieces forming the fitting groove 41 include:
When attached to the side frame 10, when positioned inside, a screw hole 43 in the thickness direction T is formed near the straight surface portion 42a and at the lower corner. Then, a tap screw (an example of a fixing tool) 44 passed through the screw hole 43 from the inside is screwed into the slit groove 26 of the lower inner plate portion 16, so that the shaft support 40 is adjusted by sliding. Is fixed to the side frame 10 at the bent position.

The shaft support 40 has through holes (roller shaft support holes) 45 for allowing the roller shaft to be inserted in the thickness direction T, which is the direction of the roller axis, at two locations in the longitudinal direction (vertical direction) H. Is formed. These through holes 45 are formed in a central hole portion 46 having the same shape as the cross section of the roller shaft at a central portion in the thickness direction T, and a central hole portion 46 on one side of the central hole portion 46 in the thickness direction T. Hole bottom 47a of the same level as
The upper surface 47b of the hole is formed in the upper extension hole 47 which gradually becomes higher. In the other portion in the thickness direction T, the hole bottom surface 48a is formed at the same level as the center hole 46 with respect to the hole upper surface 48b. It is formed in the lower extension hole portion 48 which becomes gradually lower. In the vicinity of the screw hole 43, the fitting groove 4
The projections 49 are integrally formed on the side of the surface forming 1.

A straight roller 50 is provided between the left and right shaft supports 40. The straight roller 50 includes a roller shaft 51,
The roller shaft 51 is composed of a straight roller cylinder 52 rotatably fitted outside via a bearing or the like. The straight roller 50 is supported between the left and right side frames 10 via the shaft support 40 by inserting both ends of the roller shaft 51 into the upper through holes 45 respectively.

At this time, at least the insertion portions at both ends of the roller shaft 51 have a hexagonal cross section (rectangular cross section), and the through holes 45 are formed in a hexagonal shape according to the hexagonal cross sectional shape. ing. Note that a plurality of the straight rollers 50 are arranged at a desired pitch in the length direction (front-back direction) of the side frame 10.

Annular concave portions 53 are formed at two places on the end side of the roller cylinder 52, and a round belt 54 is hung between the annular concave portions 53 of the adjacent straight rollers 50 so that the adjacent straight rollers 50 are formed. Transmission of rotational force between them becomes possible. And, among the straight rollers 50, a specific straight roller 50 includes:
A motor (an example of a driving source) 55 for rotational driving is provided in the roller cylinder 52. An example of the driving device 56 that forms the transport path 2 in the front-rear direction by driving at least a part of the straight rollers 50 by the round belt 54 and the motor 55 is configured. Then, the transport surface 3 is formed by the upper surface of the group of straight rollers 50.

The power supply and control wires 58 for the motor 55 are located in the second duct portion 22, and reach the motor 55 through the roller shaft 51. Further, a part or all of the wiring 58 is located in the first duct portion 17 through the penetrating portion 28, and the required one is connected to the controller 35.

The space between the side frames 10 (side frame 1)
0), a photoelectric sensor (an example of a detection device) that detects the transported object B from the gap S between the straight rollers 50
60 is disposed via a bracket 61. That is, the bracket 61 is obtained by bending and forming a plate with the central plate portion 61a and the bent portions 61b and 61c at both ends, and the bent portion 6 at one end.
It is attached to the inner surface side of one side frame 10 via 1c.

The bolt body 63 is inserted into the bent portion 61c of the bracket 61 from the inside with the nut body 62 positioned in the second dovetail groove 24.
It is performed by screwing into. The sensor 60 is disposed on the lower surface side of the central plate portion 61a that is inclined by attachment.
It is located between 0 and below the conveying surface 3 by the group of straight rollers 50.

At this time, the detection direction 6 by the sensor 60
0A is the upward direction inclined with respect to the gap S between the straight rollers 50, and the detection position 60B is slightly higher than the conveyance surface 3. The other bent portion 61b of the bracket 61 and the like are located above the sensor 60, and serve as a cover for protecting the sensor 60 from falling objects such as dust.

The linear roller conveyor 1 having the above structure is supported on the ceiling side via a suspending device 70. That is,
From the ceiling side, hanging rods 71 respectively located outside the side frame 10 are vertically suspended, and a support frame 73 is connected between lower portions of the hanging rods 71 via a height-adjustable connecting tool 72. Is done. And the support frame 73
The linear roller conveyor 1 is placed and connected on the upper side, and the connection is made by connecting the nut body 7 to the third dovetail portion 25.
4 can be performed by screwing the bolt body 75 that has passed through the support frame 73 from below into the nut body 74 with the 4 positioned.

The linear roller conveyor 1 having the above configuration
For example, a plurality of the dovetails 18, 24, 25 adjacent to each other are arranged in a state where a plurality of the dovetails are arranged with the transport path 2 being linear and the positioning body is positioned between the adjacent fitting portions 27.
Are connected to each other by a connection tool using the like.

8 to 10 show a curve roller conveyor 7.
9 is shown. That is, the side frames 10 are curved, and the tapered rollers 80 are provided between the left and right shaft supports 40 attached to the side frames 10. The tapered roller 80 includes a roller shaft 81,
The roller shaft 81 is constituted by a tapered roller cylinder 82 rotatably fitted outside via a bearing or the like.

The tapered roller 80 is arranged such that a small-diameter portion at one end is on the curve axis side and a large-diameter portion at the other end is on the side away from the curve axis.
Then, one end of the roller shaft 81 is inserted into the upper through-hole 45 and the other end is inserted into the lower through-hole 45, so that the roller shaft 81 is supported between the left and right side frames 10 via the shaft support 40. . At this time, the transport surface 3 formed by the group of tapered rollers 80 is positioned horizontally like the linear roller conveyor 1 described above.

In the curve roller conveyor 79, the configuration such as the cross-section of the side frame 10, wiring inside, the arrangement of the tapered rollers 80 at a desired pitch, the driving type by the driving device 56, and the suspension The support by the device 70 is the same as that of the linear roller conveyor 1 described above.

The operation of the above embodiment will be described below. In both the straight roller conveyor 1 and the curved roller conveyor 79, when disposing the linear rollers 50 and the tapered rollers 80 between the side frames 10,
First, the shaft support 40 is disposed between the side frames 10.
That is, when the arrangement is performed, as shown by the solid line A in FIG. In this state, the shaft support 40 is rotated (rotated) as indicated by the imaginary line B in FIG. 5, whereby the shaft support 40 is
a and the upper edge portion 16a, and as shown by a solid line c in FIG.
At this time, positioning is performed by the protrusion 49.

Before and after such arrangement, a straight roller 50 and a tapered roller 80 are arranged between the left and right shaft supports 40. That is, as shown in FIGS. 4 and 6, the straight roller 50 is inserted between the left and right side frames 10 via the shaft support 40 by inserting both ends of the roller shaft 51 into the upper through hole 45. Supported. At that time, the roller shaft 5
1 are respectively formed at the center hole 46, the hole bottom surface 47b of the upper diffusion hole 47, and the hole upper surface 48 of the lower diffusion hole 48.
By b, it is supported in a stable state.

In the tapered roller 80, the small-diameter portion, which is one end of the roller shaft 81, is inserted into the upper through hole 45, and the large-diameter portion, which is the other end, is inserted into the lower through hole 45. It is supported between the left and right side frames 10 via the shaft support 40. At this time, the small-diameter side end of the roller shaft 81 has a central hole 46, a hole bottom surface 47a of an upper diffusion hole 47, and a hole upper surface 48 of a lower diffusion hole 48.
b, the roller shaft 81 is supported in a state of being pressed against the elastic force of the shaft support 40, and the large-diameter end of the roller shaft 81 is provided with the center hole 46 and the hole upper surface 47 b of the upper diffusion hole 47.
And the hole bottom surface 48a of the lower diffusion hole portion 48, and is supported in a stable state.

When the straight roller 50 and the tapered roller 80 are supported on the shaft support 40 in this manner, a round belt 54 having a length corresponding to a target roller pitch is applied.

Next, while the shaft support 40 is slid with respect to the side frame 10 in the frame length direction and the round belt 54 is stretched, a tap screw passed through the screw hole 43 of the shaft support 40 from the inside. The shaft support 40 can be fixed to the side frame 10 by screwing the shaft support 44 into the slit groove 26 of the lower inner plate portion 16, so that the plurality of straight rollers 50 and the tapered rollers 80 are respectively connected to the side frame 10. The linear roller conveyor 1 and the curved roller conveyor 79 can be assembled at a desired pitch in the longitudinal direction of the linear roller conveyor 10.

In addition, the straight roller 50 and the tapered roller 80 can be removed from the side frame 10 by an operation reverse to the above, and a round belt 54 of another size is put on when assembling (arranging) again. Thus, the roller pitch can be changed easily and easily. In the case where the round belt 54 is not used, the roller pitch can be changed more easily and easily without removing the straight roller 50 and the tapered roller 80.

Next, the sensor 60 is provided at a target position. That is, the bracket 61 to which the sensor 60 is attached can be fixed to the side frame 10 by screwing the bolt body 63 passed through the bent portion 61c from the inside to the nut body 62 in the second dovetail groove portion 24, At that time, the fixing is performed by positioning the bracket 61 between the straight rollers 50 or between the tapered rollers 80 at a target position. As a result, the sensor 60 is moved between the side frames 10 and the conveying surface 3 by the group of straight rollers 50 and the group of tapered rollers 80.
And the detection direction 60A can be an upward direction inclined with respect to the gap S between the straight rollers 50 and the gap S between the tapered rollers 80, and the detection position 60B can be a little higher than the transport surface 3. .

After or at any time before this, various constructions and operations are performed on the insides of the two duct portions 17 and 22. That is, the controller 35 and various wirings 58 can be installed in the first duct portion 17 by using the first opening portion 19 opened by removing the cover 37. For inside 22, the second
Using the opening 23, various wirings 58 can be constructed. The wiring 58 to the sensor 60 and the like are performed through the second opening 23. Furthermore, both duct parts 17, 2
2, the wiring 58 can be constructed exclusively for each, and the wiring 58 can be constructed between the two duct portions 17 and 22 through the through portion 28.

After performing various constructions and operations, the first opening portion 19 forms the upper edge and the lower edge while bending the cover 37 against elasticity, as shown by a phantom line in FIG. 4, for example. The cover 3 is fitted into the locking portions 20 and 21 so that the cover 3
7 can be blocked. The closed position can be maintained by the elastic restoring force of the cover 37.

As shown in FIG. 3, for example, as shown in FIG. 3, a plurality of the linear roller conveyors 1 are arranged in a straight line along the transport path 2 and connected to each other. As shown, it is connected to the end or start of the linear roller conveyor 1. At this time, the wiring 58 and the like can be installed between the adjacent duct portions 17 and 22.

For example, when one linear roller conveyor 1 is viewed, the sensor 60 is disposed at two positions, that is, a starting end portion and a central portion in the transport direction.
Thus, two transport areas A each having the sensor 60 at the start end and having the driving device 56 are formed on one linear roller conveyor 1. Curve roller conveyor 79
Similarly, a single or a plurality of transfer areas A are formed.

In the conveyor equipment configured as described above, when a certain sensor 60 detects the article W to be conveyed, the driving device 56 of the conveyance area A in which the sensor 60 is arranged is driven to drive the article to be conveyed. W is transported, and the driving device 56 of the transport area A on the upstream side with respect to the transport area A is stopped, so that the transported object W can be transported forward. At this time, in the curved roller conveyor 79, the transported object W can be smoothly transported without moving in the centrifugal force direction due to the change in the peripheral speed of the tapered roller 80. Note that the above-described conveyance is performed by the controller 3.
5 and the like.

The detection of the transported object W by the sensor 60 described above is such that the detection direction 60A of the sensor 60 is an upward direction that is inclined with respect to the gap S between the rollers 50, and is slightly higher than the transport surface 3. Since the detection position is set to 60B, the detection distance can be shortened, and the erroneous detection can be reduced. When dust or the like on the transferred object W falls from the gap S, the dropped object can be received by the other bent portion 61b of the bracket 61, and the like.
Thus, the sensor 60 can be protected.

Next, another embodiment of the present invention will be described with reference to FIG.
It will be described based on. In this alternative embodiment, the straight roller 50 is supported between the left and right side frames 10 via the shaft support 40 by inserting both ends of the roller shaft 51 into the lower through holes 45. .

In this alternative embodiment, for example, a transport mode in which the level of the transport surface 3 is lower than that of the embodiment shown in FIG. 4 can be adopted. In addition, by using the lower through-hole 45, it is possible to change to a state in which a group of straight rollers 50 having different diameters (large diameter) is used.

In the embodiment described above, the through holes 45 are formed in the shaft support 40 at two locations in the longitudinal direction (vertical direction) H, but may be provided at one location. There may be two or more places.

In the above-described embodiment, the insertion portion of the roller shaft 51 is hexagonal (square section) and the through hole 45 is also formed in a hexagonal shape, but this may be any shape such as a quadrangle or an octagon. It may be circular or elliptical.

In the above embodiment, the shaft support 40
However, it is slidably fitted to the conveyor frame 9 in the frame length direction, but this may be a moving form other than sliding fitting, and it is not movable after being fixed to the conveyor frame 9. It may be in the form.

In the above-described embodiment, the photoelectric sensor 60 is shown as the detection device, but it may be a non-contact type or another type of contact type. In the above-described embodiment, the internal drive system in which the motor 55 is provided in the specific roller 50 is shown as the drive source, but this may be an external drive system using a chain or the like.

In the above-described embodiment, the through portion 28 is formed in the intermediate plate portion 13. However, the through portion 28 may be a type without the through portion.

[0058]

According to the first aspect of the present invention, both ends of the roller shaft are supported by the center hole, the bottom surface of the upper extension hole, and the top surface of the lower extension hole, thereby supporting the shaft. The straight roller can be stably supported on the conveyor frame through the body with its roller axis being horizontal. Then, one end of the roller shaft is supported by the hole upper surface of the central hole, the upper expansion hole, and the hole bottom surface of the lower expansion hole,
The tapered roller can be stably supported on the conveyor frame with the roller axis being inclined via the shaft support. That is, by using a common shaft support that is easy to manufacture and manage, the roller shaft can be stably supported by both the straight roller and the tapered roller.

According to the second aspect of the present invention,
When supporting the roller shaft using the opposed through holes, by adjusting the vertical position of the roller shaft, the level of the conveying surface by the roller group can be changed in multiple stages in the vertical direction, or the roller group having different diameters Can be changed to Further, by changing the upper and lower levels of the through holes used in the left and right shaft supports, the tapered roller can be disposed so that its transport surface is horizontal.

According to the third aspect of the present invention, the roller shaft can be automatically prevented from rotating as soon as it is inserted into the through hole. Further, according to the above-described claim 4 of the present invention, by sliding the shaft support relative to the side frame in the frame length direction, the roller group can be placed at a desired pitch in the length direction of the side frame. In addition to being able to be arranged, the roller pitch can be easily and easily changed.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention and is a longitudinal sectional view of a shaft support for a roller.

FIG. 2 is a perspective view of a shaft support for the roller.

FIG. 3 is a plan view of a linear roller conveyor using a shaft support for the roller.

FIG. 4 is a vertical sectional front view of a linear roller conveyor using the roller shaft support;

FIG. 5 is a longitudinal sectional side view of a main part of a linear roller conveyor using a shaft support for the roller.

FIG. 6 is a vertical sectional front view of a main part of a linear roller conveyor using a shaft support for the roller.

FIG. 7 is a perspective view of a main part of a side frame in a linear roller conveyor using the roller shaft support;

FIG. 8 is a plan view of a curved roller conveyor using a shaft support for the roller.

FIG. 9 is a vertical sectional front view of a curved roller conveyor using a shaft support for the roller.

FIG. 10 is a longitudinal sectional front view of a main part of a curved roller conveyor using a shaft support for the roller.

FIG. 11 is a longitudinal sectional front view of a linear roller conveyor using a roller shaft support according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Straight roller conveyor 2 Transport path 3 Transport surface 9 Conveyor frame 10 Side frame 13a Downward edge 16a Upper edge 23 Second open part 26 Slit groove 30 Lower frame 35 Controller 40 Shaft support 41 Fitting groove 42 Back surface 42a Straight surface portion 42b Curved surface portion 43 Screw hole 44 Tap screw (fixing tool) 45 Through hole 46 Center hole portion 47 Upper diffusion hole portion 47a Hole bottom surface 47b Hole upper surface 48 Lower diffusion hole portion 48a Hole bottom surface 48b Hole upper surface 49 Projection 50 Straight roller 51 Roller shaft 52 Roller cylinder 54 Round belt 55 Motor (drive source) 56 Driving device 60 Sensor (detection device) 70 Suspension device 79 Curve roller conveyor 80 Tapered roller 81 Roller shaft 82 Roller cylinder A Transport area B Conveyed object H Long direction (vertical direction) W Short direction (width Direction) T Thickness direction

Claims (4)

[Claims] 1. A shaft support for a roller disposed on a conveyor frame side for supporting a roller, wherein a through hole is formed to allow insertion of the roller shaft in a thickness direction which is a roller axis direction, The through hole is formed at the center portion in the thickness direction at a center hole having the same shape as the cross section of the roller shaft, and at one side in the thickness direction with respect to the center hole, a hole of the same level as the center hole is formed. The upper surface of the hole is formed in the upper extension hole which gradually becomes higher with respect to the bottom surface, and in the other side in the thickness direction, the lower surface of the hole gradually becomes lower with respect to the upper surface of the hole having the same level as the center hole. A shaft support for a roller, wherein the shaft support is formed in an extension hole. 2. The shaft support for a roller according to claim 1, wherein the through holes are formed at a plurality of positions in a vertical direction. 3. The roller shaft support according to claim 1, wherein the insertion portion of the roller shaft has a rectangular cross section, and a through hole is formed in accordance with the cross sectional shape. 4. The roller shaft support according to claim 1, wherein the shaft support is slidably fitted to the conveyor frame in a frame length direction. .