JPH0614114U - Article push-up mechanism in tray of article storage shelf - Google Patents

Abstract

(57) [Summary] [Purpose] Articles are stored on the shelves with the articles placed on them after the articles are placed in and out of the shelves on the shelf to prevent the articles from projecting or popping out. Provided is a mechanism for pushing an article in a tray higher than a protrusion preventing piece in an article storage shelf having a tray. The article push-up mechanism 40 includes a through hole 59 formed in the bottom of the tray 32 and an article W in the tray 32, which is provided in the loading / unloading stage 33 of the shelf 31 to project and retract the article W in the tray 32 from the tray 32. The article pushing-up shaft 41 that pushes the article upwards from the prevention piece 56. To take out the article W from the tray 32 to the outside, the article pushing-up shaft 41 is used to push the article
Push it above the height of 6 and remove it.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 SUMMARY OF THE INVENTION The present invention has an article having a tray for preventing protrusion or pop-out of an article and having a tray for storing the article on the shelf after the article has been put in and taken out on the shelf loading / unloading stage. It relates to a mechanism for pushing up the articles in the tray higher than the protrusion prevention piece in the storage shelf.

[0002]

[Prior art]

 Conventionally, an article storage shelf 10 (see FIG. 7) has 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 chain 14 between the pair of shelves 11 and 12. It is composed of an elevating table 15 for elevating and lowering. The pair of shelves 11 and 12 are provided with a plurality of shelves 16 for storing articles. On one of the shelves 12, in addition to the shelves 16, there is also a loading / unloading bin 17 in which an article W is loaded / unloaded by the worker M. The tray 20 is used for loading, unloading, storage, etc. of the article W. After receiving the articles W on the loading / unloading stage 17, the tray 20 is transported to the desired shelf 16 by the elevating table 15 and stored together with the items W. The tray 20 is formed in a box shape, and a protrusion preventing piece 21 provided upright around the tray 20 prevents the article W from being protruded or jumped out during conveyance. The article in the tray 20 is once lifted by the operator M above the protrusion preventing piece 21 and then taken out. In addition, a stopper 18 is provided on the loading / unloading stage 17 so that the tray 20 sent from the lifting table 15 to the loading / unloading stage 17 does not excessively project from the shelf 12 to the outside.

[0003]

[Problems to be solved by the device]

 However, the tray in such an item storage shelf has a problem that it is difficult to take out the item because the worker cannot take out the item unless the worker lifts the item higher than the height of the protrusion preventing piece. There is. In addition, even if an attempt is made to pull out the tray to the operator side without attempting to lift the article, the tray cannot be pulled out because the stopper is protruding. .

[0004]

[Means for Solving the Problems]

 In the first aspect of the present invention, a tray is stored on the shelf while the article is placed on the shelf after a protrusion preventing piece is installed to prevent the article from projecting, and the article is loaded / unloaded on / from the loading / unloading stage of the shelf. In an article storage shelf having: a through hole formed in the bottom portion of the tray; and an article in the tray that is pushed up and down through the through hole provided in the loading / unloading stage and pushes up the article in the tray above the protrusion preventing piece of the tray. Secondly, by a mechanism having an article pushing shaft, a protrusion preventing piece for preventing the protrusion of the article is erected upright, and after the article has been put in and taken out on the loading / unloading stage of the shelf, the shelf is kept with the article placed thereon. In an article storage shelf, a through-hole formed in the bottom of the tray, a floorboard that is housed in the tray and on which the article is placed, and a through-hole provided in the loading / unloading stage Haunted and said By a mechanism having an article pushing shaft to push the upper side than the projection preventing piece of the tray an article through the soleplate in the over it was solved the above problems.

[0005]

[Action]

 When the article is taken out from the tray, in the first mechanism, the article is pushed up by the article pushing-up shaft to a height higher than the height of the ejection preventing piece, and then the article is taken out. Also in the second mechanism, similarly, the article is lifted by the article lifting shaft to a height higher than the height of the protrusion preventing piece, and then the article is taken out. However, the second mechanism does not directly push up the article by the article lifting shaft, but pushes up the article through the floor plate.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. The article storage rack in which the article push-up mechanism is incorporated has generally the same structure as the article storage rack shown in FIG. Therefore, in the description of the structure of the article storage rack, only the part related to the article lifting mechanism will be described, and the description of the structure of the other parts will be omitted. The articles stored in the shelf 31 of the article storage shelf 30 are stored in the tray 32 and stored therein. The tray 32 is used within the shelf 31 and is rarely used outside.

The shelf 31 of the article storage shelf 30 (see FIG. 1) incorporates a loading / unloading stage 33 that supports the tray 32 when loading / unloading the article W into / from the tray 32. The article pushing-up mechanism 40 (see FIG. 1) is incorporated below the loading / unloading stage 33 and has a function of pushing up the article W in the tray 32. The article lifting mechanism 40 is mainly composed of a plurality of lifting shafts 41, a link mechanism 42, and a lifting lever 43.

A plurality of push-up shafts 41 are erected on the elevating frame 44 at predetermined intervals. A publicly known caster (rotary supporting means) 45 having a ball is provided at the tip of the push-up shaft 41. Instead of the caster 45, a roller (not shown) or the like may be rotatably provided. The elevating frame 44 has a rectangular planar shape, and is configured to elevate and lower the shelves 31 by means of rollers 46 provided at the four corners, with the columns 34, 34 of the shelves 31 as guides. Below the elevating frame 44, two support beams 47 (which appear as one in FIG. 1 overlapping each other) supporting the link mechanism 42 are attached between the columns 34.

The link mechanism 42 is composed of first and second links 51 and 52 and a connecting link 53. The first link 51 is rotatably provided near the four corners of the elevating frame 44. Two second links 52 are provided for each support beam 47, four for convenience, and four are freely rotatable. The connecting link 53 rotatably connects the connecting portions of the two sets of first and second links 51 and 52 with each other by pins 61 and 61.

In addition, in FIG. 1, although not seen overlapping in the drawing, the first and second links and the connecting link are also provided in the back direction of FIG. Further, each of the pins 61, 61 is connected to the connecting portion of the first and second links and the connecting link in the back direction of FIG. The push-up lever 43 is integrally attached to the second link 52. On the support beam 47, a stopper 62 for restricting the push-down range of the push-up lever 43 is attached.

The tray 32 is formed in a box shape, and the protrusion preventing pieces 54 provided upright around the tray 32 prevent the protrusion and the protrusion of the article being conveyed. The height of the protrusion prevention piece 55 on the back side (left side in FIG. 1) of the shelf 31 is lower than the height of the protrusion prevention piece 56 on the outside of the shelf 31. The height of the protrusion preventing piece 56 on the outer side is substantially the same as the height of the conventional protrusion preventing piece 21. A stopper 57 is provided on the loading / unloading stage 33 so as to stop the tray 32 at a predetermined position when the tray 32 is fed from an elevator table (not shown) corresponding to the elevator table 15 in FIG. ing. Through holes 58 and 59 through which the push-up shaft 41 penetrates are formed in the loading / unloading stage 33 (see FIG. 1) and the tray 32 (see FIG. 3).

A loading / unloading guide 60 is attached to the outside of the loading / unloading stage 33 of the shelf 31. A roller conveyor is used as the loading / unloading guide 60. The height of the upper surface of the loading / unloading guide 60 is set to an intermediate height between the upper end of the protrusion preventing piece 55 on the inner side of the tray 32 and the upper end of the protrusion preventing piece 56 on the outer side of the shelf 31. Therefore, at the time of loading and unloading the article, the article can pass through the upper end of the protrusion preventing piece 56 on the outside, and the protrusion preventing piece 56 does not interfere with the entering and exiting.

Next, the operation of the article lifting mechanism 40 will be described with reference to FIGS. 1 and 2. First, the operation of the article pushing-up mechanism 40 when the article W is stored in the shelf 31 will be described. The article lifting mechanism 40 is usually in a state where the lifting shaft 41 is lowered by its own weight as shown in FIG. The tray 32 is stopped at a predetermined position on the loading / unloading stage 33 by a stopper 57 on the loading / unloading stage 33. Therefore, the through hole 59 of the tray 32 and the through hole 58 of the loading / unloading stage 33 are aligned with each other. It is also assumed that the article W is on the imaginary line position on the loading / unloading guide 60 and not on the solid line position in FIG.

First, in FIG. 2, the push-up lever 42 is manually pushed down in the arrow B direction. Then, the second link 52 integral with the push-up lever 42 rises. As the second link 52 rises, all the first and second links 51 and 52 also rise.

As a result, the elevating frame 44 is elevated along the support columns 34 by the guide of the rollers 46. While the elevating frame 44 is rising, the push-up shaft 41 penetrates the through holes 58 and 59 and enters the tray 32. When the push-up lever 42 is still pushed down, the push-up lever 42 comes into contact with the stopper 62 to restrict the push-down. At this time, the upper end of the caster 45 on the push-up shaft 41 is substantially flush with the upper surface of the loading / unloading guide 60.

When the upper end of the caster 45 becomes substantially flush with the upper surface of the loading / unloading guide 60, the article W is pushed in the direction of arrow A in FIG. 1 and fed from the loading / unloading guide 60 into the shelf 31. Mu. The article W passes through the upper end of the protrusion preventing piece 56 on the outer side of the tray 32, is guided by the casters 45, and stops right above the tray 32. Even if the worker accidentally pushes the article W strongly into the shelf 31, the article W collides with the projection preventing piece 55 on the back side of the tray 32 and projects to the left side in FIG. There is no such thing as rubbing.

After that, when the pushing down of the push-up lever 43 is released, the push-up shaft 41 descends due to the weight of the article W and the weight of the article pushing-up mechanism 40, and finally comes out from the tray 32 as shown in FIG. . As a result, the article W is stored in the tray 32 as shown by the solid line in FIG. Lastly, the tray 32 is drawn onto the elevating table by a transfer machine (not shown) on the elevating table, lifted and conveyed to a desired shelf, and stored in the shelf together with the articles. The articles W in the tray 32 during transportation are restricted from projecting or jumping out of the tray 32 by the projection preventing pieces 54.

Next, the operation of the article pushing mechanism 40 when the article W is loaded from the shelf of the shelf 31 onto the loading / unloading guide 60 will be described. First, the elevating table takes out the tray containing the desired article W from the shelf and elevates and conveys it to the loading / unloading stage 33, and the loading / unloading stage is moved by the transfer machine (not shown) on the lifting table. Send to 33. The tray 32 sent to the loading / unloading stage 33 contacts the stopper 57 and stops at a predetermined position as shown in FIG. Then, when the push-up lever 43 is manually pushed down, the push-up shaft 41 is pushed up, and the push-up shaft 41 penetrates the through holes 58 and 59 to push the article W up to the height of the loading / unloading guide 60.

The article W is pulled up to a position indicated by an imaginary line on the loading / unloading guide 60 by a worker while being pushed up by the push-up shaft 41. Finally, when the push-down of the push-up lever 43 is released, the push-up shaft 41 is lowered by the weight of the article push-up mechanism 40, and finally comes out of the tray 32 as shown in FIG. The tray 32 is emptied and either stands by until the next article is sent, or is left empty and sent to the shelves by the lifting table.

Therefore, since the article is pushed up by the article pushing-up mechanism 40 and then taken out, the worker does not need to take the article W out of the tray 32 as in the conventional case, and the operator can easily and quickly. The article W can be removed from the tray 32. In particular, when the article is a heavy article, the article can be easily taken out.

Next, the article lifting mechanism 140 of another embodiment will be described with reference to FIGS. 4 to 6. The article push-up mechanism 140 mainly includes four push-up shafts 170, a link mechanism 142, a push-up lever 143, and a floor plate 171. It should be noted that, compared to the article lifting mechanism 40, the article lifting mechanism 140 does not have casters on the lifting shaft 170, the number of the lifting shafts 170 is small, and the floor plate 171 is newly provided. In this point, the structure is different from that of the article lifting mechanism 40. Therefore, in the structure of the article pushing-up mechanism 140, the same parts as those of the article pushing-up mechanism 40 are indicated by adding 1 to the head of the reference numerals in FIGS. 1 to 3, and the description of the part will be omitted.

Four push-up shafts 170 are provided, one for each of the four corners of the elevating frame 144, for convenience. Along with this, the through holes 158 of the loading / unloading stage 172 and the through holes 159 of the tray 173 are also formed in each of the four corners, four in total. In the tray 173, a floor plate 171 is supported and accommodated on the upper end of the push-up shaft 170. A roller conveyor (not shown) may be provided on the top surface of the floor plate 171 to facilitate the loading and unloading of articles.

Since the operation of the article lifting mechanism 140 is also substantially the same as the operation of the article lifting mechanism 40, the description of the operation will be omitted. However, in this article push-up mechanism 140, when the article W is taken in and out of the tray 173, the floor board 171 is pushed up to a height substantially flush with the upper surface of the loading / unloading guide 160 together with the push-up shaft 41, and the floor board 171 is pushed up. Items are slipped in and out. Therefore, since the article lifting mechanism 140 also pushes up the article, the worker does not need to lift the article W out of the tray 173 as in the conventional case, and can easily and quickly take out the article W from the tray 173. You can In particular, when the item is a heavy item, the item can be easily taken out.

[0024]

[Effect of device]

 In the article pushing-up mechanism according to claims 1 and 3, the article pushing-up shaft can push the article higher than the height of the protrusion preventing piece of the tray, so that the article can be taken out from the tray easily and quickly. It is possible to improve the efficiency of the work of loading and unloading articles by workers. When the rotation support means is attached to the tip of the push-up shaft as in the third aspect, it is possible to smoothly take out the article from the tray.

[Brief description of drawings]

FIG. 1 is a front view of an article lifting mechanism of the present invention, which is a partial cross-sectional view.

FIG. 2 is a state diagram of the article pushing-up mechanism of FIG. 1 when a tray is stored on a loading / unloading stage.

FIG. 3 is a perspective view showing a relationship between a tray and a lifting shaft of the article lifting mechanism in FIG.

FIG. 4 is a front view of an article lifting mechanism of another embodiment,
It is the figure expressed in the partial cross section.

5 is a state diagram of the article pushing-up mechanism of FIG. 4 when the tray is stored on the loading / unloading stage. FIG.

6 is a perspective view showing a relationship between a tray and a lifting shaft of the article lifting mechanism in FIG.

FIG. 7 is a front view of a conventional article storage rack.

[Explanation of symbols]

 W articles 30 article storage shelves 31 shelves 32,173 trays 33,172 loading / unloading stages 40,140 article lifting mechanisms 41,170 push-up shafts (article push-up shafts) 45 casters (rotary support means) 56,156 external projection preventing pieces (Protrusion prevention piece) 58,158 Through hole for loading / unloading stage 59,159 Through hole for tray 171 Floor plate

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Creator Hideki Maeda 204 Ojimachi, Kasai City, Hyogo Prefecture

Claims (3)

[Scope of utility model registration request] 1. An article having a tray in which a protrusion preventing piece for preventing the protrusion of an article is erected and which is stored on the shelf with the article placed thereon after the article has been put in and taken out on a loading / unloading stage of a shelf. In the storage shelf, a through hole formed in the bottom of the tray, and an article push-up shaft that is provided in the loading / unloading stage and pushes the article in the tray up and down to push up the article in the tray above a protrusion preventing piece of the tray. An article pushing-up mechanism in a tray of an article storage shelf, comprising: 2. The article pushing mechanism in a tray of an article storage rack according to claim 1, wherein the article pushing shaft has a rotation supporting means at an upper end thereof. 3. An article having a tray, which is provided with a protrusion preventing piece for preventing the article from protruding and is stored in the shelf with the article placed thereon after the article is put in and taken out on the loading / unloading stage of the shelf. In the storage shelf, a through hole formed in the bottom of the tray, a floor plate that is housed in the tray and on which the article is placed, and an article in the tray that is provided in the loading / unloading stage and appears in and out of the through hole. And an article pushing-up shaft that pushes up the sheet through the floor plate and above the protrusion preventing piece of the tray.