JPH0313219Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is a vertically movable shelf used in general stock shelves, tableware sterilization storage cabinets that store large quantities of tableware, cold storage cabinets, etc. This invention relates to a board lifting device.

<Prior art> Conventionally, shelves used for general stock shelves, tableware sterilization storage, cold and hot storage, etc. are generally structured such that shelf boards are fixed at preset intervals and people can take in and take out stored items. .

<Problem that the invention aims to solve> Therefore, if the height of the shelf board is made higher than a person's height, it will be difficult to see the stored items, and a step stool will be required to take out and put in the stored items, which will be inconvenient and There is a problem with instability.

Furthermore, if the height of the shelves is set to about the height of a person, it will be easier to put things in and take them out and improve visibility, but it will limit the amount of things that can be stored and it will be difficult to store a lot of things in a limited space. There was a problem that I couldn't solve.

<Means for solving the problem> The present invention was made to solve the above problem, and uses a simple mechanism to configure the shelf board so that it can be raised and lowered. You can store more items in a limited space,
The purpose is to provide a shelf lifting device that can save labor and space.
It is configured as follows.

That is, in the shelf lifting device of the present invention, a plurality of shelves are vertically movably suspended within a rectangular box-shaped shelf frame, and the shelves are lowered when not in use and raised when in use. This is a shelf lifting device used, in which a hoisting device is provided on the shelf frame, and the upper ends of hanging members connected to the four corners of the uppermost shelf are connected to hoisting rollers of the hoisting device, and each shelf is A connecting member is disposed between them to maintain a constant distance therebetween, and each connecting member is composed of two links rotatably connected, and both ends of the connecting member are pivotally connected to adjacent shelf boards. , a locking portion is disposed on the link to hold the link in a substantially dogleg shape in which the intermediate portion of the connecting member enters the shelf when the shelf is raised to open the space between the shelves.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows a front view of a shelf device having shelf boards that can be raised and lowered, and FIG. 2 shows a right side view of the same. A plurality of shelf boards 2 are suspended and supported in a vertically movable manner within a shelf frame 1 formed in a square box shape. That is, four hanging members 3a to 3d hanging from above are connected to the four corners of the top shelf board 2, and each shelf board 2
A connecting member 4 that holds the shelf boards 2 at a constant interval is pivotally attached to the shelf board 2, and each shelf board 2 is supported so as to be suspended from above by hanging members 3a to 3d at regular intervals within the shelf frame 1. .

The connecting member 4 is composed of two links 4a and 4b that are rotatably connected, and is provided at the four corners of the shelf board 2. Further, the connecting member 4 includes links 4a,
Both ends of the link 4b are pivotally connected to the adjacent shelf boards 2 so that the rotating surface of the link 4b is parallel to the front surface of the shelf frame 1.
The connecting portions a and 4b are arranged so as to be located on the shelf board 2 side. A shelf board 2 is attached to the connecting part side end of the link 4b which is disposed on the lower side of the links 4a and 4b.
In other words, the links 4a, 4b should not be in a straight line when the distance between the links 4a and 4b is widened.
A locking portion 4c that restricts rotation of the upper link 4a is provided so that the connecting portion thereof is located on the shelf board 2 side. Therefore, when folding the connecting member 4, the connecting portions of the links 4a and 4b always move into the shelf board 2 and are folded.

In addition, as shown in FIG. 7, the links 14a, 1
The connecting member 14 can also be arranged so that the rotating surface of the connecting member 4b is parallel to the side surface of the shelf frame 1. 14c is a locking portion that restricts rotation of the upper link 14a. The shelf board 2 can also be a lattice-like shelf board made by combining rods as shown in FIGS. 6 and 7.

Moreover, various kinds of flexible ropes, chains, etc. are used for the hanging members 3a to 3d, and have strength enough to support all the shelf boards 2 and stored items. The four hanging members 3a to 3d extend upward from holes provided in the upper plate of the shelf frame 1 and are connected to hoisting rollers 6 to 9 of a hoisting device 5 provided on the shelf frame 1. This hoisting device 5 includes a hanging member 3 located on the right side of the shelf frame 1.
One shaft 10 is supported horizontally directly above a and 3d,
Four winding rollers 6 to 9 are mounted on the shaft 10, and the shaft 10 is connected to a motor 11 with a reducer mounted on the shelf frame.
are connected by a chain and a sprocket, and a motor 11 drives a shaft 10 to rotate in the direction of the arrow in FIG. The winding roller 6 is located directly above the hanging member 3a, and the winding roller 8 is located directly above the hanging member 3d.
The upper end of the hanging member 3a protrudes above the upper plate of the shelf frame 1 and is immediately connected to the winding roller 6, and the upper end of the hanging member 3d is similarly connected to the winding roller 8.

On the other hand, guide pulleys 12 and 13 are provided on the left side of the shelf frame 1 in FIG. bent in the direction of
Similarly, the hanging member 3c is also bent in the direction of the hoisting device 5 via the guide pulley 13, the tip of the hanging member 3b is connected to the hoisting roller 7, and the tip of the hanging member 3c is connected to the hoisting roller 9. Since the winding rollers 6 and 7 and the winding rollers 8 and 9 of the winding device 5 are located close to each other, two grooves can also be formed on the same roller. The lengths of the four hanging members 3a to 3d are adjusted so that the shelf board 2 is suspended horizontally. In addition, a limit switch 14 is provided at the top of the shelf frame 1 to detect the rising end of the shelf board 2. When the uppermost shelf board 2 reaches the rising end, the rod is pushed up and the limit switch 14 is pushed by the rod. The motor 11 of the hoisting device 5 is stopped by operating the switch.

In order to simplify the structure, guide rails for guiding the vertical movement of each shelf board 2 are not provided, but guide rails may be provided to prevent the shelf boards 2 from shaking.

The shelf device configured in this manner can be used, for example, when the shelf is not in use or when there are few items 15 stored, the connecting members 4 are folded and all the shelf boards 2 are positioned at the lowest position, as shown in FIG. do. Thereby, the stored items 15 can be placed in a position where they can be easily taken in and out, and a sufficient height can be secured.

In addition, when placing more stored items, the hoisting device 5 is driven to rotate the hoisting rollers 6 to 9 in the counterclockwise direction in FIG. Wind it up and raise the shelf board 2.
By hoisting up the hanging members 3a to 3d, the shelf boards 2 are pulled up in order from the upper stage, and when two stages of shelf boards are used, the connecting members 4 disposed on the top and second stages are rotated and moved upward, The state will be as shown in Figure 4. In this case as well, since the stored items 15 can be placed on the shelf board at a low position, it is easy to take them in and out.

If you want to put more items on the shelf,
Similarly to the above, the hoisting device 5 is driven to raise the shelf boards 2 one after another, and the stored items 15 are sequentially placed on the newly spaced lower shelf boards 2, and then the uppermost shelf board 2 As shown in FIG.
can be placed.

When taking out the stored item 15, perform the operation opposite to the above, and start taking out the stored item at the lowest level. As the stored item 15 is taken out, the hoisting device 5 is rotated in the opposite direction, and the hanging members 3a to 3 are rotated in the opposite direction. If you rewind 3d and lower the shelf boards 2 in order, the stored items 15
The removal position is at the lowest level, allowing easy removal work.

Therefore, even if the height of the shelf is increased, the number of items stored
5 can be easily put in and taken out.

<Effects of the invention> As explained above, according to the shelf lifting device of the present invention, a plurality of shelves are vertically movably suspended within a rectangular box-shaped shelf frame, and the shelves can be moved when not in use. It is a shelf lifting device that lowers the shelf board and raises the shelf board when in use. A hoisting device is provided on the shelf frame, and the upper end of the hanging member connected to the four corners of the top shelf is the hoisting device. A connecting member is provided between each shelf board to maintain a constant distance between the shelves, and each connecting member is composed of two links rotatably connected. Both ends are pivotally connected to adjacent shelf boards, and when the shelf board is raised and the space between them is opened, the intermediate part of the connecting member enters into the shelf board. It was arranged and configured. Therefore, a plurality of shelf boards can be vertically movably supported by a hoisting device with a simple structure and four hanging members, and the structure of the device can be constructed simply and at low cost. Moreover, according to the shelf device using this elevating device, even when the height of the shelf frame is increased, it is possible to easily take in and take out stored items at a low shelf board position. In addition, since each shelf board moves up and down, if the shelf board is lowered to the lowest level, a large space can be created above, and large items can be stored. Furthermore, since each shelf board is connected by a connecting member using a link, each shelf board has the effect of being difficult to shake.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a front view of the shelf device, Fig. 2 is a right side view of the same, Fig. 3 is a perspective view of the shelf lifting device, and Fig. 4 is a diagram showing how to lift the shelf one level. FIG. 5 is a front view with all shelves raised, FIG. 6 is a perspective view of the main parts showing the connecting member, and FIG.
The figure is a perspective view of a main part showing another connecting member. 1... Shelf frame, 2... Shelf board, 3a to 3d... Hanging member, 4... Connecting member, 4a, 4b... Link, 4
c...Locking part, 5...Hoisting device.

Claims (1)

[Scope of utility model registration request] A plurality of shelves are suspended within a rectangular box-shaped shelf frame so that they can be moved up and down, and when not in use, the shelves are lowered.
A lifting device for raising and lowering a shelf when in use, in which a hoisting device is provided on the shelf frame, and the upper end of a hanging member connected to the four corners of the uppermost shelf is connected to the hoisting device. A connecting member is connected to the winding roller of the device and maintains a constant distance between each shelf board, and each connecting member is composed of two links rotatably connected. Both ends of the connecting member are pivotally connected to the adjacent shelf boards, and when the shelf boards are raised and the space between them is opened, the link is held in an approximately dogleg shape in which the middle part of the connecting member enters the shelf board. A shelf lifting/lowering device characterized in that the link is provided with a locking portion.