JPH11196964A - Article drop preventing device for stock shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an article drop preventing device for a stock self, which can surely prevent articles from dropping off shelf boards when the shelf boards are vibrated, without disturbing the loading and unloading of the articles under normal conditions. SOLUTION: When articles are loaded onto and unloaded from shelf boards 8 horizontal bars 9 do not stand in the way, and when specific vibration or more is generated on a stock shelf 1, the articles can be prevented from dropping off the shelf boards 8 becease the horizontal bars 9 are supported on the specific positions of the front upper parts of the shelf boards 8. The horizontal bars 9 are moved in the vertical direction on the front position of the stock shelf 1 in a shelf board supporting member 4, so that it can be supported on the proper positions at all times without disturbed by the articles G on the shelf boards 8 during the movement. Whereby the articles G can be surely prevented from dropping off the shelf boards 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing an article placed on a shelf of an article shelf from falling off the shelf.

[0002]

2. Description of the Related Art Conventionally, a device disclosed in Japanese Utility Model Laid-Open No. 9-173170 is known as a device for preventing a product from falling on a product shelf of this kind.

[0003] In this apparatus, a movable member to which a horizontal member for preventing articles from dropping from a shelf board is fixed is engaged with a seismic pendulum provided on the side of the shelf to support the movable member upward. When the vibration is amplified by vibration, the engagement is released, the horizontal member is dropped to a predetermined position by its own weight, and the article is prevented from falling off the shelf.

[0004]

However, in such a method, when an article whose upper part reaches the vicinity of the lower surface of the upper shelf board is placed on the shelf board, the stopper member is hindered by the article and the stopper member is positioned at an appropriate position. There is a problem that it is not possible to effectively prevent the falling of the article or the like.

The present invention has been made in view of such a problem, and does not hinder the loading and unloading of articles in a normal state. An object of the present invention is to provide an article fall prevention device for an article shelf that can reliably prevent the article from falling.

[0006]

In order to achieve the above object, an article drop prevention device for an article shelf according to the present invention comprises an article shelf comprising a shelf support member and a shelf attached to the shelf support member. In, a horizontal bar provided along the front of each shelf, and a rail provided at a front position of the article shelf in the shelf support member, and guides the horizontal bar slidably in the vertical direction, In a normal state, a locking device for holding the horizontal bar at the same height position at the front of a predetermined shelf plate or a lower surface position, and cancels the engagement between the horizontal bar and the locking device by detecting vibration. It is characterized by comprising a seismic device and a stopper member for supporting the horizontal bar at a predetermined location above the shelf. According to this feature, when the articles placed on the shelf board are taken in and out, the horizontal bar does not become an obstacle, and when the article shelf vibrates more than a predetermined level, the horizontal bar moves in front of the shelf board. Since the article is supported at a predetermined location above the part, the article is prevented from falling off the shelf. Further, since the horizontal bar moves up and down the front position of the article shelf in the shelf support member, the movement is not hindered by the articles on the shelf during the movement, and is always supported at an appropriate position. Therefore, it is possible to reliably prevent the article from falling off the shelf.

In the article drop prevention device for an article shelf according to the present invention, it is preferable that the horizontal bars are provided corresponding to the respective shelves, and these horizontal bars are integrally attached to the connecting rods so as to be interlocked. By doing so, each horizontal bar can be dropped at the same time only by providing one locking device on the article shelf, so that the structure is simplified and the manufacturing cost can be reduced.

In the article drop prevention device for an article shelf according to the present invention, the horizontal bars are separately provided corresponding to the respective shelves, and each stopper member for supporting the horizontal bars is provided inside the rail. It is preferable that the height is adjustable. By doing so, it becomes possible to support each horizontal bar at an appropriate position in response to a change in the interval between the respective shelves. In addition, since the stopper member is housed in the rail, there is no obstruction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an article shelf 1 to which the present invention is applied. 2. Bottom plate 3, front / rear struts 4 and 4 'provided between top plate 2 and bottom plate 3, and engagement holes 5 formed in the vertical direction on the front surface of rear strut 4'. And a shelf plate 8 provided in a plurality of stages via a bracket 7 having an engagement claw (not shown). G is a bottle as an article placed on the shelf 8.

In the present embodiment, the shelf 8 includes a bracket 7
A desired position and a desired number can be provided by attachment and detachment. In particular, as shown in FIG. 2, the front end surface 8a of each shelf plate 8 is brought into contact with the rear surface of the front support column 4. It is provided so that.

The inner surfaces 4a of the left and right front supports 4, 4
A long groove 6 as a guide rail is formed in the vertical direction. In this long groove 6, as shown in FIG. 2, both ends of a plurality of horizontal bars 9 provided along the front surface of the article shelf are fitted. Have been.

At both ends of the horizontal bar 9, rollers 13 are provided which are mounted on both ends of a shaft member 12 which faces in the front-rear direction.
Both ends of the horizontal bar 9 inserted into the front support column 4 are slid smoothly in the vertical direction. Instead of the rollers 13, sliding members made of resin or the like having low frictional resistance may be attached to both ends of the horizontal bar 9.

The plurality of horizontal bars 9 are attached to the top plates 2 and 3.
Four of them are provided corresponding to the shelf 8 of the step, and are respectively connected via a screw 11 to left and right connecting rods 10 which are provided along the inner side surface 4a of the front support column 4 and which face in the vertical direction. ing.

Although not shown, a plurality of mounting holes for screws 11 are formed on the front surface of the connecting rod 10 so that the horizontal rod 9 can be mounted at a desired position on the connecting rod 10. Therefore, it can be provided corresponding to the width between the shelves.

As shown in FIGS. 1 and 3, a seismic sensor 14 as a seismic device and an electromagnetic solenoid 15 as a locking device for the horizontal bar 9 are provided at substantially the center of the front of the top plate 2. ing. The telescopic bar 16 of the electromagnetic solenoid 15 normally supports the lower end of the uppermost horizontal bar 9, and when vibration caused by an earthquake or the like is detected by the seismic sensor 14, the telescopic bar 16 of the electromagnetic solenoid 15 is turned off. The telescopic bar 16 is contracted, and the engagement between the telescopic bar 16 and the horizontal bar 9 is released.

The operation of the article fall prevention device according to the embodiment of the present invention will be described with reference to FIGS. 3 to 5. First, in a normal state, the horizontal bar 9 located at the uppermost position is used. The lower surface of the top plate 2 is locked by a telescopic rod 16 of an electromagnetic solenoid 15. At this time another horizontal bar 9
Is located in front of and at the same height as the front end face 8a of each shelf 8 as shown in FIG. 4, so that it may be a hindrance when taking in and out the bottles G and the like placed on the shelf 8 Without,
Good appearance from outside.

Next, when a vibration exceeding a predetermined level occurs in the article shelf 1 due to the occurrence of an earthquake or the like, the seismic sensor 14 contracts the telescopic bar 16 of the electromagnetic solenoid 15, so that the uppermost horizontal bar 9 and the telescopic bar 16 are contracted. Is disengaged.

By releasing the engagement, the connecting rod 10 and the plurality of horizontal bars 9 connected to the connecting rod 10 are simultaneously
It falls down by its own weight. As shown in FIG. 5, when the lower end 10a of the connecting rod 10 having a predetermined length is placed on the upper surface 3a of the bottom plate 3, each horizontal bar 9 is supported at a predetermined position above each shelf plate 8. Is done.

Further, since the long groove 6 is formed in the front part of the shelf 8 in the vertical direction, the horizontal bar 9 is always dropped to an appropriate position without being hindered by the articles on the shelf 8. You. Therefore, it is possible to reliably prevent the article G from falling.

Further, each horizontal bar 9 has guide rails 6 at both ends.
As a result, the article is not moved forward from a predetermined position even if a load is applied to the article in the forward direction.

Further, in this embodiment, each horizontal bar 9
Are connected by the connecting rods 10 and the horizontal rods 9 can be dropped at the same time only by providing one electromagnetic solenoid 15 as a locking device on the article shelf 1, so that the structure is simplified. Also, instead of the horizontal bar 9, a predetermined portion of the connecting bar 10 can be locked by the electromagnetic solenoid 15.

FIG. 6 is a plan view of the front part of the back surface of the shelf 8.
Another embodiment of the seismic device and the locking device is shown.
The seismic device 30 in this embodiment includes a pendulum attached to one end of a turning piece 23 which is rotatably mounted in a horizontal direction via a shaft 22 of a mounting piece 21 fixed to the back surface of the shelf 8. 24.

The locking device 31 is composed of a locking bar 26 slidably provided in the front-rear direction of the shelf 8 by two guide members 25, 25, and one end is formed on the rotating piece 23. The horizontal bar 9 is locked to the elongated hole 27 via a locking pin 28, and the other end is provided below the horizontal bar 9 at a predetermined position. In addition, between the two guide members 25, 25, the pendulum 24 is swung in the direction of the arrow in FIG.
Two compression springs 29, 29 'are provided.

As described above, the pendulum 24 is caused to swing in the direction of the arrow in the figure due to the shaking of the article shelf 1 due to the occurrence of an earthquake or the like. Will be slid. Therefore, when the amplitude of the pendulum 24 reaches a predetermined value or more, the engagement between the locking bar 26 and the horizontal bar 9 is released, and the horizontal bar 9 falls downward.
The same operation and effect as those of the above-described embodiment can be obtained by using such a seismic device 30 and the locking device 31.

Next, FIGS. 7 and 8 show a second embodiment of the present invention. The present embodiment is different from the above-described embodiment in that each horizontal bar 9 is normally moved by each solenoid
Both ends of the horizontal bar 9 locked forward and dropped by the occurrence of an earthquake or the like have engaging claws 20 which can engage with engaging holes 19 formed in the side surface of the front support column 4 in the vertical direction. The point is that it is supported at a predetermined position by a stopper member 17 attached to the support 4 via the support member 4. Reference numeral 18 denotes a resin guide member for preventing the horizontal bar 9 from deviating.

As described above, in this embodiment, the horizontal bar 9
The guide member 18 is supported by a stopper member 17, and the stopper member 17 can be attached to a desired position in the vertical direction of the front support column 4. Even when the horizontal bars 9 are provided at arbitrary positions such that the vertical intervals are different, the horizontal bars 9 can be reliably supported at predetermined positions above the respective shelf plates 8.

Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and even if there are changes and additions without departing from the gist of the present invention. Included in the invention.

[0028]

The present invention has the following effects.

(A) According to the first aspect of the present invention, when the articles placed on the shelf board are taken in and out, the horizontal bar does not interfere, and the article shelf vibrates more than a predetermined amount. Since the horizontal bar is supported at a predetermined location above the front of the shelf, the articles are prevented from falling off the shelf. Further, since the horizontal bar moves up and down the front position of the article shelf in the shelf support member, the movement is not hindered by the articles on the shelf during the movement, and is always supported at an appropriate position. Therefore, it is possible to reliably prevent the article from falling off the shelf.

(B) According to the second aspect of the present invention, each horizontal bar can be simultaneously dropped only by providing one locking device on the article shelf, so that the structure is simplified and the manufacturing cost is reduced. Can be achieved.

(C) According to the third aspect of the present invention, it is possible to support each horizontal bar at an appropriate position in response to a change in the interval between the respective shelves. In addition, since the stopper member is housed in the rail, there is no obstruction.

[0032]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an installation state of an article shelf to which the present invention is applied.

FIG. 2 is a sectional view taken along line AA of FIG. 2;

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is a schematic front view showing the operation of the article fall prevention device provided on the article shelf of FIG. 1;

FIG. 5 is a schematic front view showing the operation of the article fall prevention device provided on the article shelf of FIG. 1;

FIG. 6 is a schematic plan view showing another embodiment of the seismic device and the locking device.

FIG. 7 is a schematic front view showing an operation of an article fall prevention device provided on an article shelf as a second embodiment of the present invention.

8 is a partially cutaway perspective view showing a main part of the article shelf of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Article shelf 2 Top plate 3 Bottom plate 4, 4 'Support (shelf support member) 4a Inner surface 5 Engagement hole 6 Long groove (rail) 7 Bracket 8 Shelf 8a Top surface 9 Horizontal bar 10 Connection bar 10a Front part 11 Screw 12 axis Member 13 Roller 14 Seismic Sensor (Seismic Device) 15 Electromagnetic Solenoid (Locking Device) 16 Telescopic Bar 17 Stopper Member 18 Guide Member 19 Engagement Hole 20 Engagement Claw 21 Mounting Piece 22 Shaft 23 Rotating Piece 24 Pendulum 25 Guide Member 26 Locking rod 27 Slot 28 Locking pin 29, 29 'Compression spring 30 Seismic device 31 Locking device

Claims (3)

[Claims] An article shelf comprising a shelf support member and a shelf attached to the shelf support member, wherein a horizontal bar provided along a front portion of each shelf is provided. A rail that is provided at a front position of the article shelf and guides the horizontal bar slidably in the vertical direction, and in a normal state, the horizontal bar is positioned at the same height as a front portion of a predetermined shelf board,
Alternatively, a locking device for holding at a lower surface position, a seismic device for detecting the vibration to release the engagement between the horizontal bar and the locking device, and supporting the horizontal bar at a predetermined position above a shelf board. An article drop prevention device for an article shelf, comprising: a stopper member. 2. The apparatus according to claim 1, wherein the horizontal bars are provided corresponding to the respective shelves, and the horizontal bars are integrally attached to the connecting bars so as to be interlocked. 3. The horizontal bar is provided separately from each shelf plate, and each stopper member supporting the horizontal bar is mounted in the rail so as to be adjustable in height. An article fall prevention device for an article shelf according to claim 1 or 2.