JPH0610216U - A mechanism for preventing the product from popping out of the product storage shelf - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a mechanism for preventing articles from jumping out on the loading / unloading stage in an article storage shelf having a shelf having loading / unloading stages for loading / unloading the items. [Configuration] The article pop-out prevention mechanism 30 of the article storage shelf 20 is
A rotatable stopper 32 urged between the loading / unloading stage 23 of the shelf 21 and the elevating table 24 that moves up and down along the shelf 21 so as to project onto the loading / unloading stage 23, and is connected to the stopper 32. The lifting table 24 is biased so as to project into the lifting area A of the lifting table 24, and
And a projecting shaft 33 which is moved by the lifting table 24 in a direction away from the lifting table 24 when facing each other. The stopper 32 is usually the loading / unloading stage 23.
The articles protruding upward and stored in the loading / unloading stage 23 are prevented from projecting into the lifting area A, and when the lifting table 24 moves up and down to the loading / unloading step 23, the protruding shaft 33 pushed by the lifting table 24. Thus, the articles are rotated downwardly of the loading / unloading stage 23 so that articles can be loaded / unloaded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mechanism for preventing an article from jumping out on an entry / exit stage in an article storage shelf having a shelf with an entry / exit step for loading and unloading articles.

[0002]

[Prior art]

 Conventionally, an article storage shelf (see FIG. 5) includes a pair of shelves 11 and 12 installed in parallel with each other, a chain 14 that is cyclically moved by a motor 13, and a pair of shelves 11 and 12 that are connected by the chain 14. It is composed of an elevating table 15 for elevating and lowering. On one of the shelves 11, in addition to a plurality of shelves 16 for storing articles, a shelving section 17 for loading and unloading articles is provided. The elevating table 15 is capable of receiving an article stored in the storage / delivery stage 17, elevating and transporting it to a desired shelf 16 and sending it to the shelf 16 and vice versa. It has become so.

Further, in the article storage rack 10, there is a risk that the articles stored in the storage / delivery stage 17 may fly out into the lifting area A of the lifting table 15 and interfere with the lifting of the lifting table 15. Further, it has a sensor (not shown) for detecting the jumping out of the article, so that the ascending / descending table 15 can be brought to an emergency stop. The lifting area A is a space required for lifting the lifting table 15. Further, on the outer side 171 of the loading / unloading stage 17, there is provided a pair of stoppers 18 and 18 for preventing the articles sent from the lifting table 15 to the loading / unloading stage 17 from jumping out.

[0004]

[Problems to be solved by the device]

 However, such an article storage shelf has problems that the sensor is expensive and that the worker has to pull the article that has jumped out into the elevating area to the loading / unloading stage each time. have. In addition, since the stopper is provided, the worker has to get over the stopper to load and unload the article, which is troublesome to load and unload.

[0005]

[Means for Solving the Problems]

 The first aspect of the present invention is to provide an article storage shelf having a shelf having a loading / unloading stage for loading and unloading articles, and a lifting table for moving up and down along the shelf, wherein the loading / unloading stage side of the lifting / lowering table side. A rotatable stopper biased so as to project into the loading / unloading area of the article, and a projecting shaft biased to the elevating table side and connected to the stopper. Secondly, when the table moves up and down to the loading / unloading stage, it is pushed by the lifting table and moved in a direction away from the lifting table, and is retracted from the loading / unloading area by the movement of the protruding shaft. In an article storage shelf having a shelf having an entry / exit stage to be put in and taken out and an ascending / descending table that moves up and down along the shelf, inside the entry / exit area of the item on the outside of the entry / exit stage. Thirdly, by a mechanism having a stopper urged to move out and an operating rod connected to the stopper and retracting the stopper from the storage area, thirdly, a storage stage for storing and storing articles is provided. An article storage shelf having a closed shelf and a lifting table that moves up and down along the shelf, wherein the stopper and the protruding shaft of the article flying-out prevention mechanism of the article storage shelf according to claim 1, and the article according to claim 2. The above-mentioned problem was solved by a mechanism that includes a stopper for the article ejection prevention mechanism of the storage shelf and an operating rod.

[0006]

[Action]

 The first mechanism is a function to prevent the articles stored in the loading / unloading stage from the outside from jumping out into the lifting area of the lifting table and the articles sent from the lifting table to the loading / returning stage. It also has the function of restricting it from jumping out into the lifting area. That is, the stopper always projects in the storage area of the article, and this stopper regulates the ejection of the article into the lifting area. The loading / unloading area is an area from the loading / unloading stage through which the article passes when the article is loaded / unloaded to the lifting table. However, if the stopper remains protruding, it becomes an obstacle when the articles are transferred from the loading / unloading stage to the lifting table. Therefore, the stopper is retracted from the loading / unloading area by the movement of the protruding shaft that is pushed by the lifting table that has moved up and down to the loading / unloading stage to receive articles.

The elevating table that has received the articles from the loading / unloading stage moves up and down to a designated shelf and stores the articles in the shelf. During this time, since the lifting table is apart from the protruding shaft, the stopper again projects into the loading / unloading area. The articles stored in the shelves are taken out from the shelves by the lifting table and moved up and down to the loading / unloading shelves. The lift table, which has been moved up and down to the loading / unloading stage, pushes the protruding shaft to retract the stopper from the loading / unloading area, and transfers the articles to the loading / unloading stage.

The stopper of the second mechanism has a function of restricting the articles sent from the outside onto the loading / unloading stage so as not to return and jump out to the outside, and the articles fed from the lifting table onto the loading / unloading stage. It has the function of restricting the vehicle from rushing outside as it is. That is, a stopper is always protruding above the loading / unloading stage, and this stopper restricts the ejection of the article to the outside.

However, if the stopper remains protruding, it becomes an obstacle when the article is stored from the outside or when the article is stored outside. For this reason, the stopper is once pushed down by an article that is stored from the outside, and after the article has passed, the stopper is projected again. The stopper is retracted from the loading / unloading stage by an operating rod operated by a worker, and allows the articles transferred from the lifting table to the loading / unloading stage to be loaded.

The third mechanism has a function of restricting articles so as not to jump out of the lifting area of the lifting table and the outside. That is, a stopper is provided on the outside of the loading / unloading stage, and this stopper regulates the jumping out of the article to the outside. Further, another stopper is provided on the elevating table side of the loading / unloading stage, and this stopper regulates the ejection of articles into the elevating area of the elevating table.

[0011]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The article storage shelf in which the article pop-out prevention mechanism is incorporated has a structure in which the stopper and the sensor in the article storage shelf shown in Fig. 5 are removed. Regarding the article storage rack in which the article fly-out prevention mechanism is incorporated, only the part related to the article fly-out prevention mechanism will be described, and the description of the other parts will be omitted. Items (not shown) stored in the item storage shelves are stored in trays. The tray is used only inside the goods storage shelf and is rarely taken out.

Of the pair of shelves of the article storage shelf 20 (see FIG. 1), one shelf 21 (the other shelf is not shown) is provided with a loading / unloading stage 23 for loading / unloading articles to / from the tray 22. ing. A roller conveyor is used for the loading / unloading stage 23 so that the tray 22 containing the articles can be moved smoothly.

The elevating table 24 of the article storage shelf 20 has a rectangular planar shape (not shown), and has two columns 25 of one shelf 21 (which appear to overlap two in FIG. 1). Two columns (not shown) on the other shelf are used as guide rails to move up and down. Guide rollers 27 (only one guide roller is shown, the other not shown) are rotatably attached to four corners of a frame 26 of the elevating table 24 in correspondence with four columns. As shown in FIG. 3, two guide rollers are provided in the vertical direction.

The article fly-out prevention mechanisms 30 and 31 (see FIG. 1) are provided at two locations on the back side (elevating table side) 231 of the loading / unloading stage 23 and the outside side 232. The article popping-out prevention mechanism 30 on the back side 231 is incorporated between the back side 231 of the loading / unloading stage 23 and the lifting table 24. The article jumping-out prevention mechanism 30 has a function of restricting the tray 22 sent from the loading / unloading guide 51, which will be described later, to the loading / unloading stage 23 so that the tray 22 does not fly out into the lifting area A of the lifting table 24. The tray 22 is regulated so that the tray 22 sent from the lifting table 24 to the loading / unloading stage 23 does not return and jump out into the lifting area A.

The article fly-out prevention mechanism 30 (see FIG. 2) includes a stopper 32, a protruding shaft 33, a spring 34, and a pressing piece 35. The stopper 32 is rotatably provided by a pin 42 on a support bracket 36 on the column 25. The tip end 321 of the stopper 32 projects into the loading / unloading area B of the tray 22 on the loading / unloading stage 23.

The protruding shaft 33 is supported by a guide cylinder 37 fixed to the support column 25 so as to move in the left-right direction in FIG. A roller 38 is rotatably supported at the tip of the protruding shaft 33. At the rear end of the protruding shaft 33, a connecting pin 39 is provided so as to project. The connecting pin 39 is inserted into a long hole 40 formed at the rear end of the stopper 32.

A collar 41 is provided at an intermediate portion of the protruding shaft 33. A spring 34, which is loosely fitted to the protruding shaft 33, is provided between the flange 41 and the guide cylinder 37. The spring 34 presses the protruding shaft 33 in the direction of the arrow C and causes the roller 38 to constantly protrude into the lifting area A of the lifting table 24. Further, the spring 34 also has a function of causing the tip of the stopper 32 to constantly project into the loading / unloading area B via the projecting shaft 33. The pressing piece 35 is attached to the lifting table 24, and comes into contact with the roller 38 when the lifting table 24 moves up and down to the loading / unloading stage 23.

Next, the article fly-out prevention mechanism 31 (see FIG. 4) provided on the outer side 231 of the loading / unloading stage 23 will be described. This article popping-out prevention mechanism 31 has a function of restricting the tray 22 sent from the loading / unloading guide 51, which will be described later, onto the loading / unloading stage 23 so that the tray 22 does not return and jump out to the outside. It has a function of restricting the articles sent onto the surface 23 so that they do not jump out to the outside as they are.

A support bracket 52 is provided outside the shelf 21 so as to face the loading / unloading stage 23. A loading / unloading guide 51 is attached to the support bracket 52. A roller conveyor is used for the loading / unloading guide 51.

A stopper 53 is rotatably attached to the support bracket 52 by a pin 54. A weight 55 is integrally provided at one end of the stopper 53. The weight 55 rotationally urges the stopper 53 so that the tip 531 of the stopper 53 projects between the loading / unloading stage 23 and the loading / unloading stage 51 and projects onto the loading / unloading stage 23. An elongated slot 56 is formed vertically between the tip 531 of the stopper 53 and the pin 54. Instead of the weight 55, a spring (not shown) may be provided to apply a rotational biasing force to the stopper 53.

A foot pedal 57 is placed on the floor G (see FIG. 1). The long hole 56 (see FIG. 4) and the foot pedal 57 are connected by an operating rod 58. The protrusions 59 and 60 (see FIGS. 2 and 4) attached to the tray 22 are arranged such that the tray 22 is located between the lifting table 24 and the loading / unloading stage 23, or between the lifting table 24 and the shelving stage (illustrated) (Not shown) is a member with which a pin (not shown) of the carry-in / carry-out device mounted on the elevating table 24 engages when it moves between the stopper 32 and 53, and is provided at a position where it does not interfere with the stoppers 32 and 53. There is.

Next, the operation will be described. First, the warehousing operation will be described. The tip 531 of the stopper 53 of the article fly-out prevention mechanism 31 on the outer side 232 of the loading / unloading stage 23 always projects onto the loading / unloading stage 23 as shown by the solid line in FIG. The tray 22 sent from the loading / unloading guide 51 to the loading / unloading stage 23 pushes the front end 531 of the stopper 53 to rotate the stopper 53 in the direction of arrow D while entering the loading / unloading stage 23. As a result, the tip 531 of the stopper 53 is recessed below the loading / unloading stage 23 as shown by the imaginary line in FIG.

When the tray 22 passes over the stopper 53, the stopper 53 is raised again by the weight 55. The protruding stopper 53 regulates the projection of the tray 22 so that the tray 22 sent to the loading / unloading stage 23 does not reversely return and project to the loading / unloading guide 51 side. Since the operating rod 58 is engaged with the long hole 56 of the stopper 53, even if the stopper 53 is rotated by the tray 22 in the direction of the arrow D, only the stopper 53 rotates, and the operating rod 58 does not move. No force is applied.

The operating rod 58 may be connected to the stopper 53 by omitting the elongated hole 56. However, in this case, it is necessary to step the foot pedal 57 and forcibly rotate the stopper 53, and then send the tray 22 to the loading / unloading stage 23.

On the other hand, the tip 321 of the stopper 32 of the article fly-out prevention mechanism 30 provided on the back side 231 of the loading / unloading stage 23 (see FIG. 2) also projects to the upper surface of the loading / unloading stage 23. The tray 32 carried into the tray is restricted by the stopper 32 from protruding into the ascending / descending area A. Therefore, the tray 22 is stopped at a predetermined position on the loading / unloading stage 23 by the stoppers 53 and 32.

When the tray 22 (see FIG. 3) is stopped at a predetermined position on the loading / unloading stage, the lifting table 24 moves up and down and approaches the loading / unloading stage 23. At this time, the pressing piece 35 on the elevating table 24 presses the roller 38 of the article fly-out prevention mechanism 30 and pushes the protruding shaft 33 into the shelf 21 against the spring 34. The projecting shaft 33 moves in the direction of arrow F, rotates the stopper 53 in the direction of arrow E through the connecting pin 39 and the elongated hole 40, and causes the tip 321 of the stopper 32 to be retracted into the loading / unloading stage 23. It should be noted that the protruding shaft 33 moves in the direction of arrow F regardless of whether the lifting table 24 is raised or lowered, and always rotates the stopper 53 in the same direction (direction of arrow E). It is like this.

After that, a pin (not shown) of the carry-in / carry-out device on the lifting table 24 engages with the projecting piece 59, and the tray 22 is drawn onto the lifting table 24. Then, the tray 22 is conveyed to the target shelf by the elevation of the elevating table 24 and is stored and stored in the shelf.

Next, the delivery operation will be described. The elevating table 24 pulls out the tray 22 in which desired articles are stored from the shelves, and ascends and descends to the position of the loading / unloading stage 23. As the elevating table 24 is moved up and down, the pressing piece 35 on the elevating table 24 presses the roller 38, and the tip 321 of the stopper 32 is retracted into the loading / unloading stage 23. After that, the lifting table 24 sends the tray 22 to the loading / unloading stage 23. At this time, the stopper 53 of the article fly-out prevention mechanism 31 on the outer side 232 projects above the loading / unloading stage 23, and restricts the projection of the tray 22 to the outside.

The elevating table 24 moves up and down to another shelf to take out the next tray 22. As the lifting table 24 moves up and down, the pressing piece 35 separates from the roller 38, so that the tip end 321 of the stopper 32 is projected onto the loading / unloading stage 23 by the spring 34. As a result, the tray 22 is stopped at a predetermined position on the loading / unloading stage 23 by the stoppers 32 and 53. When the article in the tray 22 is a lightweight article, the article is picked up by an operator so as to be lifted from the tray 22. When the article is a heavy article, an operator (not shown) depresses the foot pedal 57 and pulls the tip 531 of the stopper 53 downward by the operating rod 58. As a result, the stopper 53 does not get in the way, and the worker can pull out the tray 22 onto the loading / unloading guide 51 and easily take out the article from the tray 22.

Note that the article fly-out prevention mechanism 30 may be installed upside down and installed above the loading / unloading stage 23. In this case, the stopper 32 appears and disappears from above the loading / unloading stage 23. That is, the stopper 32 only needs to project into the loading / unloading area B. Further, the articles may be directly loaded and unloaded without using the tray 22.

[0031]

[Effect of device]

 In the article jumping-out prevention mechanism according to the first aspect, the stopper can prevent the article from jumping out into the lifting area of the lifting table, so that the lifting table can be prevented from contacting the article. Further, since the structure does not require the use of a sensor, the structure can be inexpensive. Further, since the article does not jump out into the lifting area of the lifting table, it is possible to eliminate the need for the worker to pull the article into and out of the loading and unloading stage, which was conventionally performed by the worker. The article jump-out prevention mechanism according to claim 2 can prevent the article from jumping out of the loading / unloading stage by the stopper. Further, when the article is a heavy article, the stopper can be forcibly retracted and the article can be pulled out, so that there is an effect that the article loading / unloading operation can be performed easily and quickly. The article jumping-out prevention mechanism according to claim 3 can be stopped at a predetermined position on the loading / unloading stage by the two stoppers, so that the article can be prevented from jumping out from the shelf. Further, when the lifting table is provided with an article loading / unloading device, the article can be stopped at a predetermined position on the loading / unloading stage, so that the loading / unloading device and the article can be reliably engaged. it can.

[Brief description of drawings]

FIG. 1 is a front view of an article storage rack in which an article pop-out prevention mechanism of the present invention is incorporated.

FIG. 2 is a front view of an article flying-out prevention mechanism provided on the back side of the loading / unloading stage.

FIG. 3 is an operation diagram of the article pop-out prevention mechanism of FIG.

FIG. 4 is a front view of an article flying-out prevention mechanism provided on the outside of the loading / unloading stage.

FIG. 5 is a perspective view of an article storage rack in which a conventional article pop-out prevention mechanism is incorporated.

[Explanation of symbols]

 A lifting area B loading / unloading area 20 article storage shelves 21 shelves 23 loading / unloading steps 24 lifting tables 30, 31 article jumping-out prevention mechanisms 32, 53 stoppers 33 projecting shafts 58 operating rods

Claims (3)

[Scope of utility model registration request] 1. An article storage shelf comprising: a shelf having a loading / unloading stage for loading and unloading articles; and a lifting table that moves up and down along the shelf. It has a rotatable stopper that is biased to project into the loading / unloading area, and a projecting shaft that is biased to the lifting table side and that is connected to the stopper. Preventing articles from popping out of the article storage shelf, characterized in that the articles are retracted from the loading / unloading area by the movement of the projecting shaft that is pushed by the lifting table when moved up and down to the exit stage and is moved away from the lifting table mechanism. 2. An article storage shelf having a shelf having a loading / unloading stage for loading and unloading articles, and an elevating table for ascending / descending along the shelf, wherein the loading / unloading of the article is outside the loading / unloading stage. An article pop-out prevention mechanism for an article storage shelf, comprising: a stopper urged to project into the area; and an operation rod connected to the stopper and retracting the stopper from the storage area. 3. An article storage shelf comprising: a shelf having a loading / unloading stage for loading and unloading articles; and an elevating table that moves up and down along the shelf. An article pop-out prevention mechanism for an article storage rack, comprising: a stopper of the mechanism; a protruding shaft; a stopper of the article pop-out prevention mechanism of the article storage rack according to claim 2; and an operating rod.