JPH0416407A - Movable shelf apparatus - Google Patents

Abstract

PURPOSE:To obviate a groove and a rail by providing a movable support device consisting of an endless body having numerous rollers an a guide body of rollers on a lower path and a movable device having a friction-driving wheel on a lower part of a movable shelf in a shelf apparatus having a plurality of movable shelves. CONSTITUTION:A movable support device 10 and a movable device 20 are provided under a frame (only a side lower frame 4 is shown) of each movable shelf 2. The movable support device 10 is constituted by attaching a plate-like guide plate 12 to a guide frame 11 and hanging an endless body 13 wherein numerous rollers 18 are endlessly connected with one another by links 14 so that the guide plate 12 is interposed. The movable device 20 is composed of a driving shaft 22 supported by a shaft between frame bodies 11 in the center of a moving direction, a friction-driving wheel 23 attached to this shaft and a motor not shown, and the shelf 2 is moved by rotational movement of the friction-driving wheel 23 on a floor 6 and the shelf 2 is moved and supported by endless run of the endless body 13. This constitution obviates the groove and rail.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a movable shelving facility installed in a warehouse or factory, for example, and having a plurality of movable shelves.

2. Description of the Related Art Conventionally, this type of movable shelf has been used, for example, in 1983-
The structure found in Publication No. 41952 is provided. In this conventional type, a plurality of axles are attached to each of the outer and middle saddles, and rails for supporting and guiding these wheels are laid in grooves formed in the floor.

According to this conventional method, a group of movable shelves is moved to form a work space in front of the target movable shelf, and a forklift is moved into this work space to load and unload cargo.

Problems to be Solved by the Invention According to the above-mentioned conventional method, a great deal of labor is required to form the grooves and lay the rails, and when the forklift truck crosses the rail section, the corners forming the grooves may be damaged or the tires may be damaged. This will cause damage.

An object of the present invention is to provide a movable shelf facility that eliminates the need for forming grooves and laying rails.

Means for Solving the Problems In order to achieve the above object, the movable shelf equipment of the present invention is provided with a movable support device and a movable device at the lower part of the movable shelf.

The movable support device includes an endless body that is rotatably stretched in the moving direction and forms an upper path portion and a lower path portion, and a plurality of rollers that are attached to the endless body and that are rotatable on a floor surface. and a guide body that supports and guides the upper part of the roller in the lower path part, and the axis of the roller is disposed perpendicular to the moving direction, and the moving device is equipped with a friction drive wheel that can freely roll on the floor surface. and a drive section that interlocks with this friction drive wheel.

According to the configuration of the present invention, the load on the movable shelf side is stopped on the floor side via the guide body of the movable support device and the roller group located in the lower path portion. The movable shelf can be moved back and forth by forcibly rotating the friction drive wheels of the moving device. At this time, the roller group located in the lower path portion becomes rolling at the current point due to the frictional force on the floor side and the amount of movement of the guide body, and then according to the movement of the guide body.

On the leading end side of the movement, the rollers in the upper path section are sequentially fed into the lower path section via the endless body, and on the rear end side of the movement, the rollers on the lower path section are sequentially returned to the upper path section. Therefore, the required number of rollers is always present below the guide body. The rollers roll on the floor surface without tilting left or right, thereby making the movable shelf move straight.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 6.

In FIGS. 4 to 6, reference numeral 1 denotes a pair of front and rear fixed shelves, and between these fixed shelves, a plurality of movable shelves 2 that can freely move back and forth in the direction of the fixed transom are arranged. Each column 1.degree. 2 has a plurality of divided storage spaces 3 in the vertical and horizontal directions. Each movable shelf 2 is provided with a moving support device 10 and a moving device 20 at the lower portions of the side lower frames 4 at both left and right ends and the pair of left and right intermediate lower frames 5 located inside. That is, in FIGS. 1 to 4, the movable support device 10 has a gate-shaped frame body 11 fixed to the lower surface of each lower frame 4, 5, and a frame body 11 that penetrates between the lower parts of both side plates of the frame body 11. A plate-shaped guide body 12 is attached thereto. Cheno 13, which is an example of an endless body, has many links 1
4 and the connecting pin 15, and the guide body 12
By fitting the guide body 12 outwardly, an upper path portion 16 above the guide body 12 and a lower path portion 17 below the guide body 12 are formed. In the chino 13, a sufficient distance is provided between the left and right links 14, and a roller 18 is attached thereto so as to be freely rotatable by fitting onto the connecting pin 15. Therefore roller 1
8 is arranged with its axis perpendicular to the direction of movement,
In this case, the rollers 18 may be attached to all of the connecting pins 15, or may be attached to a thin number of rollers, such as at intervals.

The roller 18 is made of plastic, urethane, nylon,
It is made of steel or the like, and is configured so that the lower path portion 17 contacts the floor surface 6 and the guide body 12 at the same time. The moving device 20 includes a drive wheel 22 disposed between adjacent frame bodies 11 via a bearing 21 in the center of the moving direction, and a drive wheel 22 that is attached to the drive wheel 22 and can freely roll on the floor surface 6. A friction drive wheel 23 and a drive unit (such as a motor) attached to the frame body 11 via a bracket 24
25, a wrap transmission device 27 that interlocks and connects the output shaft 26 and the drive wheel 22, and the like. Note that the friction drive wheel 23 is made of rubber, urethane, or the like.

In the above embodiment, the load on the movable shelf 1 side, such as articles stored in the divided storage space 3, is applied to each of the lower frames 4 and 5, the frame body 11, the guide body 12, and the roller 18 located on the lower path section 17. A receiver is fixed on the floor surface 6 side through the support. In this state, the drive unit 25 operates to prevent the winding transmission system [2
By forcibly rotating the friction drive wheel 23 via 7 and the drive wheel 22, the movable shelf 2 can be reciprocated on the fixed path 7. At this time, the group of rows 518 located in the lower path portion 17 becomes rolling at the local point due to the frictional force on the floor surface 6 side and the amount of movement of the guide body 12. As the guide body 12 moves, the rollers 18 of the upper path section 16 are sequentially sent to the lower path section 17 via the chino 13 at the leading end of the movement, and the rollers 18 of the lower path section 17 at the rear end of the movement.
8 are sequentially returned to the upper route section 16. Therefore, the necessary number of rollers 18 are always present below the guide body 12, and the load can always be appropriately prevented even during movement. Since the roller axis is perpendicular to the direction of movement, the roller 18 rolls on the floor surface 6 without tilting to the left or right. Therefore, the movable shelf 2 moves straight, The robot always moves along a constant path 7 without using a guide member such as a floor rail.

7 and 8 show another embodiment of the invention.

That is, the movable support device 10 provided on the side lower frame 4 or the intermediate lower frame 5 is divided into two (multiple divisions) in the front and back.

Effects of the Invention According to the present invention having the above configuration, the load on the movable shelf side is transferred to the floor via the guide body and the roller group located in the lower path section, either when the shelf is stopped or when it is moved by the operation of the moving device. Uke can be stopped on the men side. During movement, the rollers can be moved between the upper path section and the lower path section via the endless body, and the required number of rollers can always be positioned below the guide body, so that the load can always be properly distributed. Uke can be stopped. Furthermore, since the rollers roll on the floor surface without tilting left or right, the movable shelf can move straight, and can always move on a fixed path without using guide members such as floor rails.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, FIG. 1 is a partially cutaway side view of the main part of the movable shelf, FIG. 2 is an enlarged side view of the main part, and FIG. 4 is a plan view of the lower frame body, FIG. 5 is a schematic side view of the entire body, FIG. 6 is a schematic plan view of the same, and FIG. 7 is a main part showing another embodiment. FIG. 8 is a partially cutaway side view, and FIG. 8 is a partially cutaway front view. 2... Moving shelf, 4... Side lower frame, 5... Intermediate lower frame, 6... Floor surface, 10... Moving support device, 12... Guide body, 13... Cheno (Endless body)
, 14... Link, 15... Connecting pin, 16...
Upper route part, 17... Lower route part, 18... Roller, 20... Moving device, 23... Friction drive wheel, 25...
... Drive unit, 27... Wrap transmission device.

Claims (1)

[Claims] 1. A moving support device and a moving device are provided at the bottom of the moving shelf,
The movable support device includes an endless body that is rotatably stretched in the moving direction and forms an upper path portion and a lower path portion, and a plurality of rollers that are attached to the endless body and that are rotatable on a floor surface. and a guide body that supports and guides the upper part of the roller in the lower path part, and the axis of the roller is disposed perpendicular to the moving direction, and the moving device is equipped with a friction drive wheel that can freely roll on the floor surface. and a drive unit that is linked to the friction drive wheel.