JP3502666B2 - Shelf lifting device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertically movable shelf board elevating device used in a tableware disinfection storage room, a cold storage room, etc. for storing tableware and the like. It is. 2. Description of the Related Art Conventionally, shelves used as general stock shelves, not limited to tableware disinfection storage rooms and cold storage rooms, have fixed shelves at predetermined intervals so that people can put in and take out stored items. Usually, it is a structure that does. In such a normal shelf structure, if the height of the shelf is higher than the height of a person,
It becomes difficult to see things, and when putting things in and out,
A step ladder or the like is required, which is inconvenient and unstable. For the purpose of solving such a problem of the ordinary shelf structure, a plurality of shelves are conventionally suspended in a shelf frame so as to be movable up and down, and the shelves are lowered when not in use, and are lowered when in use. A shelf board structure that can be raised and lowered so that the shelf board can be used while being raised has been developed and used. [0004] In this type of conventional shelf board lifting and lowering apparatus, the shelf board is often suspended only by wires. In such a suspended structure using wires, When used for many years, there was a problem that wire elongation occurred, the difference in wire elongation at the four corners of the shelf appeared, and the shelf was inclined. [0005] In addition, since there is a problem that the shelf board may fluctuate or cause a large lateral sway only by hanging with a wire, in order to prevent this, a strong bracket is provided on the side of the shelf board. However, if a very strong bracket is provided on the side as described above, unless the dimensional accuracy of each component is extremely enhanced, the shelf board may be suspended in the shelf frame and each shelf board may be suspended. Assembly such as mounting of the side bracket is not easily performed. Therefore,
The components must be manufactured with high dimensional accuracy, and the entire device is expensive. SUMMARY OF THE INVENTION An object of the present invention is to provide a shelf lifting device capable of solving the above-mentioned problems of the prior art. According to the present invention, a plurality of shelves are suspended in a shelf frame so as to be movable up and down, the shelves are lowered when not in use, and the shelves are lowered when in use. A lifting device having a winding roll provided on the shelf frame, and one end connected to four corners of an uppermost shelf plate of the plurality of shelf plates. A steel belt for suspending the shelf by connecting the end to the hoisting roll of the hoisting means, and a connecting member provided at four corners between the respective shelves to maintain a predetermined interval therebetween. Each of the connecting members is formed of a steel elongated flat plate, and the steel elongated flat plate has a guide slot extending along the longitudinal direction thereof, and one end of the steel elongated flat plate is formed. Is the adjacent shelf The guide slot and the suspension bolt provided on the other one of the adjacent shelves are loosely fitted into the guide slot of the elongated steel plate fixed to the other one of the shelves. The steel belt and the elongated steel plate are connected or fixed to corners of different sides of the shelf, and the shelf also has a horizontal rolling force in the left-right direction of the shelf. The roll in the width direction of either the steel belt or the elongated steel plate always provides a drag against the roll force in the longitudinal direction of the plate, thereby minimizing the roll of the shelf. It is characterized by being able to be. Next, the present invention will be described in more detail with reference to the accompanying drawings with reference to the accompanying drawings. FIG. 1 is a schematic side view of a shelf lifting device as one embodiment of the present invention, and FIG. 2 is a schematic plan view of the shelf lifting device of FIG. The shelf lifting device of this embodiment is:
The present invention can be applied to a shelf structure such as a tableware disinfection storage, a cold storage, or a general stock shelf. As shown in FIG. 1 and FIG. 2, the shelf board lifting / lowering device of this embodiment
The shelf frame 10 includes four pillars 11 at four corners on the left, right, front and rear, a ceiling 12, and a floor 13. This shelf frame 10 may be formed of a steel member,
In particular, when applied to a dishwashing storage, it is preferable to use stainless steel which is resistant to corrosion. A hoisting device is disposed on the ceiling 12 of the shelf frame 10. In this embodiment, the hoisting device is a bearing 21 mounted on the left and right sides of the ceiling 12.
Rolls 25 and 27 attached to the front and rear of a rotating shaft 23 supported on the shaft, and winding rollers mounted before and after a rotating shaft 24 supported on a bearing 22 fixed to the front and rear on the right side of the ceiling 12. 26
And a drive motor 3 arranged substantially at the center of the ceiling 12
0, a driving pulley 32 attached to the rotating shaft 31 of the driving motor 30, a driven pulley 33 attached to the rotating shaft 23, and a drive transmission applied between the driving pulley 32 and the driven pulley 33. And a belt 34. As shown in FIG. 1, four shelves 41 in this embodiment are provided on a floor portion 13 in a shelf frame 10.
42, 43 and 44 are arranged so as to overlap each other. One end of a steel belt 28 is connected to the periphery of the hoisting rolls 27 arranged on the left and front of the ceiling 12, and the other end of the steel belt 28 is attached to the left side surface of the uppermost shelf 41. It is connected and fixed using a mounting bolt 28A. One end of a steel belt 29 is connected to the periphery of the winding roll 25, and the other end of the steel belt 29 is connected to the uppermost shelf through a winding roll 26 disposed at the front and rear of the right side of the ceiling 12. It is connected and fixed to the right side surface of the plate 41 using a mounting bolt 29A. These steel belts 28
And 29 preferably have a width sufficient to provide a certain degree of stiffness in the width direction, and are preferably made of stainless steel in the sense that they are resistant to corrosion when applied to a dishwashing storage. FIG. 3 is a partial perspective view of the ceiling portion 12 of the shelf frame 10 in order to make it easier to understand the connection relationship between each of the hoisting rolls 25, 26, and 27 and each of the steel belts 28 and 29. In FIG. 3, a drive system such as a drive motor 30 disposed on the ceiling 12 is omitted. As shown in FIG. 1, at each of the four corners between the shelves, there are provided elongated steel plates 51, 52 and 53, which are connecting members for maintaining a predetermined interval therebetween. Each of the elongated steel plate members 51, 52 and 53 is formed with a guide slot 51A, 52A and 53A extending along the longitudinal direction thereof. It is preferable that these steel elongated flat materials are also made of stainless steel when they are applied to tableware disinfection storage, because they are resistant to corrosion. The elongated steel plate 51 is provided between the uppermost shelf 41 and the shelf 42 immediately below the shelf 41. In this embodiment, each of the shelves 41 and 42 is provided. Are located on the side surfaces different from the side surfaces on which the other ends of the steel belts 28 and 29 are connected and fixed. The lower end of each of the elongated steel plate members 51 is attached and fixed to the side surface of the shelf plate 42 using attachment bolts 61. The corresponding guides provided on the side surfaces of the shelf board 41 and the suspension bolts 71 are loosely fitted in the guide slots 51A of the respective elongated steel plate members 51. Similarly, the elongated steel plate 52 is
It is provided between the shelf 42 and the shelf 43, and in this embodiment, it is located at the outer corners on the left, right, front and rear of the respective shelf 42 and 43, and at a position inside the above-described elongated steel plate 51. Have been. The lower end of each of the elongated steel plate members 52 is attached and fixed to the side surface of the shelf plate 43 using attachment bolts 62. And, each steel elongated flat plate material 52
The corresponding guides and suspension bolts 72 provided on the side surface of the shelf 42 are loosely fitted into the guide slots 52A. The elongated steel plate member 53 is provided between the shelf plates 43 and 44. In this embodiment, the steel elongated plate members 53 are located at the left, right, front and rear outer corners of the respective shelf plates 43 and 44, and It is arranged at a position inside the elongated flat plate member 52. The lower end of each of the elongated steel plate members 53 is attached and fixed to the side surface of the shelf board 44 using attachment bolts 63. The corresponding guides provided on the side surfaces of the shelf 43 and the suspension bolts 73 are loosely fitted into the guide slots 53A of the respective elongated steel plate members 53. These steel strips 5
Preferably, 1, 52 and 53 have a width sufficient to provide some stiffness in the width direction. Next, the overall operation of the shelf lifting device having such a structure will be described with reference to FIG. FIG. 4 shows the shelf board lifting / lowering apparatus shown in FIGS. 1 and 2 without the shelf frame 10 and schematically shows the hoisting apparatus. Of the elongated steel plates 51, 52 and 53 provided for the shelves 41, 42, 43 and 44, only those provided at one corner among those provided at the four corners are shown. When the shelf lifting device is not used, as shown in FIG. 1, four stages of shelf plates 41, 42, 43 and 44 are provided.
Are placed on the bottom portion 13 of the shelf frame 10 so as to overlap each other. In use, first, when the drive motor 30 is energized, the rotating shaft 23 is rotated via the drive pulley 32, the drive transmission belt 34, and the driven pulley 33, and the winding rolls 25 and 27 are rotated in the winding direction. Can be Then, the other end of the steel belt 28 having one end connected to the hoisting roll 27 is pulled up. At the same time, the other end of the steel belt 29 having one end connected to the winding roll 25 is pulled up through the winding roll 26. Thereby, the uppermost shelf board 41 starts to be pulled upward from the state of FIG. At this time, the guides and the suspension bolts 71 provided at the four corners of the shelf board 41 are connected to the lower shelf board 42.
The one end is fixedly fitted to the guide slot 51A of the elongated steel plate member 51, so that the guide plate and the suspension bolt 71 are moved along the guide slot 51A when the shelf board 41 is moved upward. By being guided and moved, the operation is performed in a stable state between the left and right steel elongated flat plate members 51. The urging of the drive motor 30 may be automatically stopped once the guide and the suspension bolts 71 of the uppermost shelf plate 41 are hooked on the uppermost portion of the guide slot 51A of the elongated steel plate member 51. . As a means for this, an arbitrary means such as disposing a limit switch operated according to the position of the shelf board 41 can be used. In this manner, when the uppermost shelf 41 is lifted to a height suitable for work and stopped,
The worker places the tableware 1 to be disinfected and stored on the shelf board 41, for example. And shelf board 4
After finishing such a storing operation on the shelf 1, the worker re-energizes the drive motor 30 to wind up the steel belts 28 and 29, thereby pulling up the shelf board 42 of the next stage. Let it do. As a result, since the guide and the suspension bolt 71 of the uppermost shelf board 41 are hooked on the uppermost portion of the guide slot 51A of the elongated steel plate member 51, the lower shelf is connected via the elongated steel plate member 51. The plate 42 starts to be pulled upward simultaneously with the shelf plate 41. At this time, guides and suspension bolts 72 provided at the four corners of the shelf board 42 are connected to the lower shelf board 43.
The guide plate and the suspension bolt 72 move along the guide slot 52A because the guide plate and the suspension bolt 72 move upward along the guide plate 52A because the guide plate 52A is loosely fitted into the guide slot 52A of the elongated steel plate member 52 having one end fixed to the guide slot 52A. By being guided and moved, it is performed in a stable state between the left and right thin steel plate members 52. FIG. 4 schematically illustrates a state in which the second-stage shelf board 42 is thus pulled up to just before the height position of the optimal work position. Hereinafter, similarly, the shelves of each stage are pulled up to the height of the optimal work position. The operation can be easily understood in accordance with the above-described operation description, and therefore will not be repeated here. . Also, the operation and operation for lowering the raised shelf boards 41, 42, 43 and 44 to the state shown in FIG. 1 are completely opposite to the operations and operations described above, and can be easily understood. It will not be described in detail. As in this embodiment, the steel belt 28
And 29 and a steel strip 51, 52 and 53
Are connected or fixed to the corners of the shelves 41, 42, 43 and 44 which are different from each other.
The steel belt 28, the roll force in the left-right direction and the roll force in the front-rear direction
Since the thickness in the width direction of any one of the steel plate 29 and the elongated steel plates 51, 52, 53 always gives a drag, the effect of minimizing the roll is obtained. The shelf board lifting / lowering apparatus of the present invention has a simple structure in which a steel belt and a long and thin steel plate are used in combination. Since there is no problem and the shelves do not roll during use, there is no hindrance to the work of storing articles on the shelves. In addition, since it is not necessary to use a strong bracket or the like, it is possible to easily assemble without having to increase the processing accuracy of each component so much, and since this and the structure itself are simple, as a whole, The device cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view of a shelf lifting device as one embodiment of the present invention. FIG. 2 is a schematic plan view of the shelf board lifting / lowering device of FIG. FIG. 3 is a schematic perspective view of a ceiling portion for showing in detail a structure of a hoisting device of the shelf lifting device of FIG. 1; FIG. 4 is a schematic diagram for explaining the overall operation of the shelf lifting device of FIG. 1; DESCRIPTION OF SYMBOLS 1 Tableware 10 Shelf frame 11 Support section 12 Ceiling section 13 Bottom section 21 Bearing section 22 Bearing section 23 Rotating shaft 24 Rotating shaft 25 Winding roll 26 Winding roll 27 Winding roll 28 Steel belt 28A Mounting bolt 29 Steel belt 29A Mounting bolt 30 Drive motor 31 Rotary shaft 32 Drive pulley 33 Driven pulley 34 Drive transmission belt 41 Shelf 42 Shelf 43 Shelf 44 Shelf 51 Steel elongated flat plate 51 Guide slot 52 Steel elongated flat plate 52A Guide slot 53 Steel elongated Flat plate 53A Guide slot 61 Mounting bolt 62 Mounting bolt 63 Mounting bolt 71 Guide and suspension bolt 72 Guide and suspension bolt 73 Guide and suspension bolt

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kotaro Nakano 3-24-15 Takaban, Meguro-ku, Tokyo Taniguchi Industry Co., Ltd. (72) Inventor Shigeru Nakayama 3-24-15 Takaban, Meguro-ku, Tokyo Taniguchi Industry Co., Ltd. (56) References JP-A 63-50234 (JP, U) JP-A 1-65205 (JP, U) JP 13161 (Taisho 14) (JP, Y1T) (58) Fields surveyed (Int) .Cl. ⁷ , DB name) A47B 51/00 501 A47B 96/06 B66F 7/02

Claims (1)

(57) [Claims 1] A plurality of shelves are suspended in a shelf frame so as to be movable up and down, the shelves are lowered when not in use, and the shelves are raised when in use. In an apparatus for elevating a shelf to be used, a winding means provided on the shelf frame and having a winding roll, one end of which is connected to four corners of an uppermost shelf of the plurality of shelves, and the other end is wound. A steel belt connected to the hoisting roll of the means for suspending the shelf, and connecting members provided at four corners between the respective shelves for maintaining a predetermined interval therebetween, The connecting member is formed of a steel elongated flat plate, and the steel elongated flat plate is formed with a guide slot extending along the longitudinal direction, and one end of the steel elongated flat plate is connected to the adjacent one of the adjacent elongated plates. To be fixed to one of the shelves , The said guide slot of the steel elongate flat plate material,
Guides and suspension bolts provided on the other one of the adjacent shelves are loosely fitted therein, and the steel belt and the elongated steel plate are separated from each other by the shelves. The steel belt and the elongated steel plate, which are connected or fixed to the corners of different sides, for the lateral rolling force of the shelf in the left-right direction, and for the lateral rolling force of the shelf in the front-rear direction. A shelf board lifting / lowering device characterized in that the width of one of the materials in the width direction always gives a drag so that the lateral movement of the shelf is minimized.