JP2926379B2 - Roller conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller conveyor, and more particularly to a roller conveyor used in a mechanical parking lot.

[0002]

2. Description of the Related Art As shown in FIG.
The vehicle includes a plurality of parking rooms 70, and a traveling vehicle 72 for transporting a vehicle as a transfer object to a predetermined parking room 70. An entrance / exit opening 74 is provided on an entrance / exit floor, and the vehicle is moved up and down on each floor. An elevator 76 for moving is provided.

The parking room 70 is in the vertical direction (the horizontal direction in FIG. 15).
Are provided in parallel, and a traveling path 78 of the traveling carriage 72 is provided between the rows of the parking rooms 70. The traveling carriage 72 moves in the vertical direction.

[0004] Each parking room 70, traveling carriage 72, entrance and exit 7
4. The elevator 76 is provided with a roller conveyor 10 for transferring a vehicle, as shown in FIG. The roller conveyor 10 is provided separately with a relatively narrow roller conveyor 10a on which the front wheels of the vehicle are mounted and a relatively wide roller conveyor 10b on which the rear wheels of the vehicle are mounted. These roller conveyors transfer the vehicle in the lateral direction (vertical direction in FIG. 16).

The roller conveyor 10 has a plurality of rollers 14 rotatably mounted between a pair of side frames 12 via bearings. The rollers are driven to rotate to transfer a vehicle. . As shown in FIGS. 17 and 18, a conventional roller conveyor 10 includes a so-called pillow block 8 with a bearing 16 to which a roller 14 is attached.
0 is fixed to the side frame 12. The pillow block 80 is attached to the side frame 12 by bolts 82 and nuts 84.

[0006]

However, in the prior art using the pillow block described above, a plurality of pillow blocks are adjacent to each other, and each pillow block is fixed to the side frame by bolts and nuts. There are problems to enumerate.

Since the pillow blocks are arranged adjacent to each other, the pitch P3 between the rollers is increased (see FIG. 17), and the vibration to be transferred is increased. Further, if the bearing is made smaller in order to reduce the pitch between the rollers, the strength of the bearing is reduced. Further, in order to mount the pillow block, the side frame needs at least the height H of the pillow block.

Further, when the roller or its bearing is damaged and replaced, the number of bolts for fixing the pillow block is large, and the work of removing and attaching these bolts is complicated. Also, when replacing the roller, the pillow block must be completely removed. Further, when the rollers and their bearings are damaged in plurals and are to be replaced, each pillow block must be removed one by one, and after replacing the damaged member, each pillow block must be attached again one by one. Must.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a plurality of rollers can be continuously and reliably fixed by one bearing fixing member, and further, this bearing fixing member is fixed to a side frame. It is an object of the present invention to provide a roller conveyor capable of reducing the number of connecting members for performing the operation. It is a further object of the present invention to reduce the height of the roller conveyor and make it compact.

Further, the present invention provides a roller conveyor in which the pitch between adjacent rollers is reduced to suppress the vibration of a transferred object, and the rollers can be easily attached and detached when replacing the rollers. The purpose is to provide. It is still another object of the present invention to reduce vibrations and noises when transferring an object to be transferred.

[0011]

In order to achieve the above object, a roller conveyor according to the present invention comprises a bearing fixing member formed integrally with a plurality of continuous bearing fixing portions for supporting a bearing mounted on a roller. A roller conveyor in which a roller is mounted on a side frame via the bearing fixing member, wherein a bearing cover for absorbing vibration and noise is interposed between the bearing fixing portion and the bearing. It is. Also, the bearing fixing member,
It is attached to the side frame by the same number of coupling members as the bearing fixing portion. It is desirable that each bearing fixing part of the bearing fixing member is open upward.

Further, the bearing fixing member can be composed of a plurality of bearing fixing members having different lengths. The bearing cover is made of a synthetic resin such as polyacetal resin, nylon, polycarbonate, ABS resin, and urethane rubber. In addition, it is desirable to provide an engaging claw for each bearing fixing portion so as to be engaged with the bearing cover to prevent detachment.

[0013]

According to the present invention, a plurality of bearing fixing members are attached to a side frame by a connecting member to form a roller conveyor. Since the bearing fixing portion is formed continuously and integrally, the pitch between the rollers can be reduced. Therefore, the vibration of the transferred object can be suppressed. Since the bearing is provided with the bearing cover, vibration and noise can be reduced. Further, the height of the roller conveyor can be reduced, and the roller conveyor can be made compact. When the bearing fixing portion is opened upward, the engagement claw is provided so as to engage with the bearing cover, so that the bearing can be securely fixed. Further, a roller conveyor having a desired length can be formed by combining a plurality of bearing fixing members having different lengths.

When replacing the roller, the connecting member to which the bearing fixing member is attached is loosened to open the bearing fixing member, and the roller is removed from the upward opening. After replacing the roller, the coupling member is tightened to fix the bearing with the bearing fixing member. Since the number of the bearing fixing portions and the number of the attachment coupling members are the same, the attachment / detachment of the roller is easy. In addition, since the bearing fixing portion is open upward, the roller can be easily attached and detached.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the roller conveyor 10 according to the present invention will be described with reference to the drawings. The same reference numerals in the drawings denote the same or corresponding parts. 1 to 10 show a first embodiment of a roller conveyor 10 according to the present invention, which is used in, for example, each parking room 70 of a mechanical parking lot.

The roller conveyor 10 generally includes a pair of side frames 12 and a plurality of rollers 14. A bearing 16 attached to the rollers 14 is fixed to the side frames 12 by a bearing fixing member 18, and each roller 14 rotates. Driven.

As shown in FIG. 9, the side frame 12 is formed of a channel member having a U-shaped cross section.
8 is attached to the vertical portion 12a of the side frame 12. The roller 14 in this embodiment continuously decreases in diameter from the diameter S portion toward the end to form a rotating shaft.

The roller 14 has a sprocket 22 integrally provided on one side thereof, and a bearing inner race 16a as a bearing 16 attached to both ends.
A chain (not shown) is wound around the sprocket 22 of each roller 14, and the chain is connected to driving means such as a motor (not shown) to rotate the roller 14. Incidentally, reference numeral 24 denotes a chain guide.

The bearing outer race 16b is press-fitted into a bearing case 26 made of a synthetic resin as shown in FIG. 8, and this bearing case 26 is fixed to the side frame 12 by a bearing fixing member 18 as shown in FIG. Is done. By interposing the bearing case 26 between the bearing 16 and the bearing fixing member 18, the roller 1
4 reduces vibration and noise when the vehicle mounted on the vehicle is transferred. In this embodiment, a polyacetal resin is used as a synthetic resin.

As shown in FIGS. 5 to 8, the bearing case 26 is provided with a central opening 28 for inserting the bearing 16 and supporting the roller 14 at the center, and engaging the bearing fixing member 18 at the upper left and right sides. The mating engaging portions 30 are integrally formed. An inclined portion 30 a is formed in front of the engaging portion 30.

In this embodiment, as shown in FIGS. 1 to 3, the bearing fixing member 18A is formed by integrally forming five bearing fixing portions 32 for accommodating and fixing the bearing case 26. . The bearing fixing portion 32 is formed with an upward opening portion 34 each having a substantially U shape. A bearing case engaging claw 3 is provided at a position where the end of the upward opening portion 34 is aligned with the inclined portion 30a of the bearing case 26.
6, the bearing case 26 is fixed to the bearing fixing member 1
When fixed by 8A, the bearing case 26 is prevented from easily falling out of the upward opening portion 34. In addition, the bearing fixing member 18A is
There are five connection holes 38 for attachment to the same number as the number of the bearing fixing portions 32.

A plurality of bearing fixing members 1 as described above
8 are bolts 4 on the side frame 12
The roller conveyor 10 is attached by a nut 0 and a nut 42. The connecting member is a bolt 40 and a nut 4
Not only 2, but also a screw or the like can be used. further,
The bolt 40 or the nut 42 may be fixed to either the side frame 12 or the bearing fixing member 18.

As shown in FIG. 4, for example, the bearing fixing member 32 in the first embodiment is
The bearing fixing member 18B may be used in which the bearing fixing members 18B are provided continuously and integrally, and the coupling holes 38 are also formed in six places. In this case, the bearing fixing member 18B has the same pitch as P1 (see FIG. 1) as compared with the bearing fixing member 18A, and is set so that the total length LB1 is longer than the total length LA1. In this way, the roller conveyor 10 having a desired length can be configured by combining the plurality of bearing fixing members 18A and 18B.

The bearing fixing member 18 constructed as described above
When replacing the roller 14 due to damage, the bolt 4
0, and the nut 42 is loosened to disengage the bearing case engaging claw 36 of the bearing fixing member 18 from the inclined portion 30a.
And replace it, and tighten the bolt 40 and nut 42 again (see FIG. 10).

Next, a second embodiment of the roller conveyor 10 according to the present invention will be described with reference to FIGS. Since the side frames 12 and the rollers 14 in the second embodiment are the same as those in the first embodiment, the description thereof will be omitted.

The roller conveyor 10 in this embodiment
The roller 16 has a large diameter bearing 16 and is directly fixed to the bearing fixing member 52, and is more frequently used than the roller conveyor 10 in the parking room 70, a traveling vehicle 72, a doorway 74, and an elevator 76. It is used for
The bearing fixing member 52 in this embodiment is a bearing 1
6 is fixed over the entire circumference.

As shown in FIG. 11, the bearing fixing member 52A is formed by integrally forming five bearing fixing portions 54 for accommodating and fixing the bearings 16 similarly to the previous embodiment. Further, the bearing fixing member 52A is connected to the side frame 12.
There are five connecting holes 56 for attachment to the same as the number of the bearing fixing portions 54.

A plurality of bearing fixing members 5 as described above
2 is attached to the side frame 12 to form the roller conveyor 10. Similarly to the first embodiment, the coupling member is not limited to the bolt and the nut, but may be a screw or the like, and the bolt or the nut may be fixed to one of the side frame 12 and the bearing fixing member 52. .

As shown in FIG. 13, for example, as shown in FIG. 13, the bearing fixing member 52 in the second embodiment is provided with six bearing fixing portions 54 which are continuously provided integrally with each other and in which six connecting holes 56 are formed. The fixing member 52B may be used. In this case, the pitch of the bearing fixing member 52B is the same as P2 (see FIG. 11) and the total length LB2 is set to be longer than the total length LA2 as compared with the bearing fixing member 52A. In this way, the roller conveyor 10 having a desired length can be configured by combining the plurality of bearing fixing members 52A and 52B.

The bearing fixing member 52 constructed as described above.
When the roller 14 is damaged and replaced, the bolt and nut are removed, the roller 14 is replaced together with the bearing 16, and the bolt and nut are tightened again.

Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to the embodiments.

For example, in the embodiment of the present invention, a roller conveyor in a mechanical parking lot has been described. However, the present invention is not limited to this, and the roller conveyor can be used for other purposes.

Further, in the embodiment of the present invention, the bearing fixing member of the roller driven to rotate on the roller conveyor has been described. However, the present invention is not limited to this, and the present invention can be applied to a bearing fixing member of a driven roller of a belt conveyor, for example. it can.

[0034]

As described above, by configuring the bearing fixing member of the roller of the roller conveyor according to the present invention, the following effects can be obtained.

The pitch between the rollers can be reduced, so that the vibration of the transferred object can be suppressed and the transfer can be carried safely. Further, the height of the roller conveyor can be reduced, and the roller conveyor can be made compact.

When a synthetic resin bearing cover is used, vibration and noise can be further suppressed.

Further, since the number of connecting members to be attached to the side frame is the same as the number of the bearing fixing portions, the number of members is small, and the rollers can be easily attached and detached.

When the bearing fixing portion is opened upward, the roller can be easily attached and detached.
In this case, by providing the engagement claws on each bearing fixing portion, the bearing can be securely fixed.

[Brief description of the drawings]

FIG. 1 is a front view of a bearing fixing member according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of FIG.

FIG. 3 is an enlarged plan view of FIG. 1;

FIG. 4 is a front view of another example of the bearing fixing member according to the first embodiment of the present invention.

FIG. 5 is a front view of the bearing case according to the first embodiment of the present invention.

FIG. 6 is a side view of FIG. 5;

FIG. 7 is an enlarged plan view of FIG. 5;

FIG. 8 is a cross-sectional view showing a state where the bearing is mounted on the bearing case according to the first embodiment of the present invention.

FIG. 9 is a partially enlarged cross-sectional view of a roller conveyor using the bearing fixing member according to the first embodiment of the present invention.

FIG. 10 is a partially enlarged cross-sectional view showing a state where a roller of a roller conveyor using the bearing fixing member according to the first embodiment of the present invention is replaced.

FIG. 11 is a front view of a bearing fixing member according to a second embodiment of the present invention.

FIG. 12 is an enlarged sectional view of FIG.

FIG. 13 is a front view of another example of the bearing fixing member according to the second embodiment of the present invention.

FIG. 14 is a partially enlarged sectional view of a roller conveyor using a bearing fixing member according to a second embodiment of the present invention.

FIG. 15 is a schematic plan view of a mechanical parking lot.

FIG. 16 is a plan view showing an example of use of a roller conveyor.

FIG. 17 is a front view showing an example of a roller conveyor using a conventional pillow block.

FIG. 18 is a sectional view of FIG. 17;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Roller conveyor 12 Side frame 14 Roller 16 Bearing 18, 52 Bearing fixing member 26 Bearing case (bearing cover) 30 Engaging part 30a Inclined part 32, 54 Bearing fixing part 34 Upward opening part 36 Engaging claw 40 Bolt 42 Nut

Claims (6)

(57) [Claims] 1. A bearing fixing portion for supporting a bearing attached to a roller is more continuous with a bearing fixing member formed integrally, a roller conveyor and the mounting so that the roller side frame through the bearing fixing member At the axis
For absorbing vibration and noise between the bearing and the bearing
A roller conveyor with a bearing cover interposed . 2. The roller conveyor according to claim 1, wherein the bearing fixing member is attached to the side frame by substantially the same number of coupling members as the bearing fixing portion. 3. The roller conveyor according to claim 1, wherein each bearing fixing portion is open upward. 4. A bearing fixing member comprising a plurality of shafts having different lengths.
The roller conveyor according to any one of claims 1 to 3, wherein the roller conveyor comprises a receiving and fixing member . 5. A bearing cover according to claim 1, characterized in that it consists of a polyacetal resin, nylon, polycarbonate, ABS resin, synthetic resin such as urethane rubber
The described roller conveyor. 6. The roller according to any one of claims 3 or claim 4, characterized in that provided to engage the bearing cover engaging claws for preventing omission in the bearing fixing portion Conveyor.