JP2650810B2 - Slat bar for slat 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 slat bar of a slat conveyor for transporting and storing heavy objects such as cars in a multistory parking lot.

[0002]

2. Description of the Related Art Conventionally, in steel slat conveyors generally used, slat bars connected between conveyor chains have (1) a flat cross section, (2) a rectangular tube cross section, and (3) a T-shaped cross section. Has been adopted.

[0003]

However, (1) those having a flat cross section are not suitable for conveying heavy objects due to their low strength, and if the thickness is increased to increase the strength, the weight increases. However, there is a problem that the material cost increases.
(2) Square cross-sections have higher strength and can be reduced in weight compared to flat cross-sections, but they have difficulty in mounting a conveyor chain and have a higher conveying surface height (this is because In a multi-story parking garage arranged in multiple layers, the occupied space is narrowed down). (3) A T-shaped cross section has higher strength than a flat cross section, and is easier to attach to a conveyor chain than a rectangular tube cross section, but has a large weight and requires two slat bars.
Since the two members are welded in a T-shape, there is a problem that the manufacturing cost is high.

An object of the present invention is to provide a slat bar for a slat conveyor that is lightweight, has high strength, is low in height, and is low in cost, solving the above problems.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, a slat bar for a slat conveyor according to the present invention has an inverted groove-shaped cross section having a front and rear surface portion and a mounting surface, and has a conveyer chain mounting portion. A concave portion shallower than the front and rear surfaces is formed on the mounting surface, the height of the front and rear surfaces of the conveyor chain mounting portion is set smaller than the front and rear surfaces, and the bottom of the concave portion is attached to a chain link of the conveyor chain. is there.

[0006]

According to the above construction, since the entire structure has an inverted groove-shaped cross section, light weight and high strength can be obtained, and further, the mounting portion of the conveyor chain having a small bending moment has a reduced height of the front and rear surfaces and has a lower mounting capacity. A recess is formed on the mounting surface to increase the section modulus and increase the strength.Since the bottom of the recess is mounted on the chain link, installation is easy, and the height from the conveyor chain to the mounting surface of the slat bar is reduced. Can be reduced to a height equivalent to the height. Further, since the slat bar can be press-molded, it can be mass-produced at low cost.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a slat conveyor of a multistory parking lot having a slat bar according to the present invention will be described below with reference to the drawings.

As shown in FIG. 3, the multi-story parking garage has a plurality of parking floors 1 in a building, and a pair of left and right guide rails 3 is disposed in a central space 2 of each parking floor 1. A movable carriage 4 is arranged on the guide rail 3. On both sides of the central space 2, parking shelves 5 are respectively provided along the traveling direction of the traveling carriage 4, and each of the parking shelves 5 is divided into a plurality of parking rooms 6 and an arbitrary parking room. One of the components 6 is formed in a lift space of a lift 8 of a car elevator device 7. A front wheel slat conveyor 9A and a rear wheel slat conveyor 9B capable of passing the vehicle A are arranged on the traveling carriage 4, each parking room 6, and the elevator 8.

Details of the slat conveyors 9A and 9B provided on the traveling carriage 4 will be described. 4 and 5
As shown in FIG. 1, a bogie frame 12 having running wheels 11 at four corners has a front wheel slat conveyor 9A at the front and a rear wheel slat conveyor 9B at the rear at predetermined intervals in the left-right direction. A drive shaft 13 and a driven shaft 14 common to both slat conveyors 9A and 9B are arranged along the running direction and rotatably supported on both left and right sides of the bogie frame 11. A drive motor 15 is provided on the bogie frame 12 between the two slat conveyors 9A and 9B. A drive sprocket 15a provided on the output shaft and a driven sprocket 13a provided on the drive shaft 13 are interlocked via a drive chain 16. Are linked. Further, the drive shaft 13 and the driven shaft 14 are provided with interlocking sprockets 13 provided at both ends.
b, 14a and interlockingly connected via an interlocking chain 17,
Both slat conveyors 9A, 9B are driven by drive motor 15.
Are driven synchronously.

The slat conveyors 9A and 9B include two front wheel conveyor chains 22A wound around a sprocket 21A attached to the drive shaft 13 and the driven shaft 14 for the front wheels.
A front wheel slat bar 23A shown in FIG. Further, the drive shaft 13 and the driven shaft 1 for the rear wheels are used.
4 includes three conveyor chains 22B wound around a sprocket 21B attached to the rear wheel 4 and a rear wheel slat bar 23 shown in FIG. 2 between the rear wheel conveyor chains 22B.
B is attached.

The slat bars 23A and 23B are basically formed in a reverse groove shape by a front surface portion 24, a rear surface portion 25, and a mounting surface 26 connecting the entire surfaces to a flat surface.
The mounting portions (both ends of the front wheel slat bar 23A and both ends and the center of the rear wheel slat bar 23B) 27 of the conveyor chains 22A and 22B are mounted on the mounting surface 2.
6, a groove-shaped concave portion 28 shallower than the height of the front portion 24 and the rear portion 25 is formed, and the front portion 24 'of the mounting portion 27 is formed.
The height t 'of the rear surface portion 25' is the same as or slightly higher than the height t of the groove-shaped concave portion 28. As shown in FIGS. 6 and 7, the attachment portions 27 are formed by receiving plate portions 22b formed on both upper sides of each chain link 22a of the conveyor chains 22A and 22B.
And are connected and fixed by a minimum of two bolts / nuts 31 or rivets. Therefore, the height from the upper surface of the chain link 22a to the mounting surface 26 is the height t of the groove-shaped recess 28 which is smaller than the heights of the front surface 24 and the rear surface 25. Further, the head of the bolt / nut 31 is housed in the groove-shaped recess 28 and does not protrude above the mounting surface 26, and does not directly contact the tire of the automobile A. Further, the slat conveyors 9A and 9B are provided with guide rollers 18 for contacting and guiding the mounting surface 26 on the return side (return side), so that the slat bars 23A and 23B on the return side can be extremely simply configured. Guide support.

According to the above configuration, the slat bars 23A,
23B has an inverted groove-shaped cross section, so that the section modulus is increased to obtain a light weight and high strength, and the mounting portion 27 where the bending moment is reduced is provided with the height of the front portion 24 'and the rear portion 25'. Since the front surface portion 24 and the rear surface portion 25 other than the portion 27 are smaller than the front surface portion 24 and the rear surface portion 25, the groove-shaped recess 28 is formed to further increase the section modulus, and the bottom portion 28a of the groove-shaped recess 28 is attached to the chain link 22a.

(A) From the chain link 22a to the mounting surface 2
6 can be reduced, and the thickness of the slat conveyors 9A and 9B can be reduced, including the outward and return paths. Therefore, in a multistory parking lot where slat conveyors are arranged in multiple layers, the building space can be reduced.

(B) By adopting a shape capable of being pressed, mass production becomes possible, and by using a thin plate, it is possible to reduce the weight and the production cost.

(C) Since the head of the bolt / nut 31 for mounting can be accommodated by the groove-shaped concave portion 28 of the mounting portion 27, the head of the bolt / nut 31 does not hit the tire and damage the diamond. Also, the bolt / nut 31 is not loosened by the contact.

(D) Since only the mounting portion 27 has a special shape and the transport surface of the automobile A is flat, the transfer between the slat conveyors 9A and 9B can be performed smoothly.
In addition, the guide of the slat bars 23A and 23B on the return path can be performed by the simple guide roller 18.

Here, the slat bar having a T-shaped cross section shown in the conventional example (3) and the slat bars 23A and 23 of this embodiment are used.
Table 1 shows a comparison of the weight and manufacturing cost of B.

[0018]

[Table 1]

According to Table 1, the weight was reduced by about 50% and the manufacturing cost was reduced by about 75% as compared with the conventional slat bar having a T-shaped cross section.

[0020]

As described above, according to the slat bar for a slat conveyor of the present invention, since the whole has a reverse groove-shaped cross section, a lightweight and high strength can be obtained, and furthermore, a mounting portion of the conveyor chain having a small bending moment. The height of the front and rear surfaces is reduced, the recess is formed on the mounting surface, the section modulus is increased, the strength is increased, and the bottom of the recess is attached to the chain link, so installation is easy,
The height from the conveyor chain to the mounting surface of the slat bar can be made as small as the height of the recess. further,
Since this slat bar can be press molded,
It can be mass-produced at low cost.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing one embodiment of a slat bar for a front wheel slat conveyor according to the present invention.

FIG. 2 is a partially cutaway perspective view of the rear wheel slat bar.

FIG. 3 is a partial perspective view of a multistory parking lot using the slat conveyor.

FIG. 4 is a plan view of a traveling vehicle using the slat conveyor.

FIG. 5 is a front view of a traveling vehicle using the slat conveyor.

FIG. 6 is a side view showing a mounting portion of the slat bar.

FIG. 7 is a front sectional view showing a mounting portion of the slat bar.

[Explanation of symbols]

 4 Carriage 6 Parking room 8 Lift 9A Slat conveyor for front wheel 9B Slat conveyor for rear wheel 13 Drive shaft 14 Follower shaft 21A, 21B Sprocket 22A, 22B Conveyor chain 22a Chain link 23A, 23B Slat bar 24,24 'Front 25 , 25 'Rear 26 Mounting surface 27 Mounting 28 Groove 28a Bottom 31 Bolt and nut A Automotive

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shintaro Ando 5-28, Nishikujo, Konohana-ku, Osaka-shi, Osaka Inside Hitachi Zosen Corporation (72) Inventor Ichiro Senba 5-chome, Nishikujo, Konohana-ku, Osaka-shi, Osaka No. 3-28 within Hitachi Zosen Corporation (72) Inventor Teruhiko Ochi 5-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka-shi Within Hitachi Zosen Corporation (56) References Japanese Utility Model Application ) Real opening 60-137716 (JP, U)

Claims (1)

(57) [Claims] The basic shape is an inverted groove-shaped cross section composed of front and rear surface portions and a mounting surface, a concave portion shallower than the front and rear surfaces is formed on a mounting surface of a conveyor chain mounting portion, and a front and rear portion of the conveyor chain mounting portion. A slat bar for a slat conveyor, wherein the height of the surface is set smaller than the front and rear surfaces, and the bottom of the recess is attached to a chain link of a conveyor chain.