JP2007252462A - Device for preventing falling of article from rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely retain articles by stretching an article protection net to a rack front face before a main earthquake, secure its operation even under a power failure, prevent slack of the once-stretched protection net, enable its post-installation on the article storage rack and prevent the falling of the articles from the rack. <P>SOLUTION: One end of the article protection net 4 is fixed to the front part of a shelf board 3 of the article storage rack 1 supporting the shelf board 3 with shelf board support members 2, the other end is formed into a tubular shape, a support shaft 5 is passed therein, its both ends are connected to wires 7 via support bushes 6, the wire is connected to a weight 8 placed on the rack 1 in non-operation state, and the weight is fallen by a solenoid 9 operating before an earthquake to position the protection net 4 on the front face of the shelf board 3 so that the protection net 4 is stretched to the front face of the rack before the main earthquake. This constitution can secure the operation of the device even under a power failure, surely retain the articles by stretching the protection net in the width direction from the lower part to the upper part without any clearance, retain the once-stretched protection in a non-slacking manner, and enable it to be easily attached to the storage rack as post-installation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus for preventing an article placed on a shelf plate of an article storage shelf from falling.

  Article storage shelves that support a plurality of shelf boards with shelf board support members such as four pillars are widely used, and various measures to prevent the storage racks from falling over are taken, but even if they do not fall over, It is often experienced that articles placed on these generally tall storage shelves fall due to the tremendous shaking of an earthquake, and countermeasures have been devised.

  As an example, there are those disclosed in JP-A Nos. 11-196962 and 11-196363, respectively, and the former can be stored near the front of the shelf and can be stretched on the front of the shelf, An urging means for stretching a net, a guide for holding a part of the net in the vicinity of an end of the shelf, a locking device for holding the urging means at a predetermined position, and the locking by detecting vibration It is an article fall prevention device provided with the seismic device which cancels | releases latching of an apparatus and biasing means.

  Further, the latter is a pivot member pivotally attached to the front left and right ends of the article shelf from a horizontal storage position to a vertical standing position and elastically biased in the standing direction, and the rotation Both ends are fixed to the member, and when the rotating member is in the standing position, a net stretched between the left and right rotating members, a locking device that holds the rotating member in the storage position, and vibration detection Thus, the article fall prevention device includes a seismic device that releases the engagement between the locking device and the rotating member.

  However, both the above and the latter are configured so that the piston operates only when the seismic device and the solenoid are ON to perform the necessary operation, and thus cannot operate during a power failure. In addition, although a pendulum type seismic device is also provided as an auxiliary, there is no expectation for the accurate operation of the article fall prevention device. Furthermore, since the seismic devices in the front and the latter cannot identify the type of earthquake shaking, there is a risk of malfunction.

In the former, since the net is moved and stretched from above, there is a risk that the article will pop out or get caught from below the net until it is fully closed. In the latter case, the slack of the net occurs before the rotating member is completely erected, and the possibility of the article jumping out from here is high.
Japanese Patent Application Laid-Open No. 11-196962 JP 11-196963 A

  The problem to be solved by the present invention is that the article protection net can always be stretched on the front of the shelf before the main shock, the device can be operated reliably even in the event of a power failure, and the article protection net is stretched from below to above. Provides a device that can hold an article securely, can hold a tensioned protective net so as not to loosen, and can prevent an article from dropping from a shelf that can be easily attached to an article storage shelf after installation. There is to do.

  The present invention for solving the above-described problems is to fix one end side of an article protection net (net) to the front part of a shelf board in an article storage shelf that supports a plurality of shelf boards by a shelf board support member, It is formed in a cylindrical shape, passes through a support shaft, and both ends of the shaft are connected to a wire via a support bush. When the wire is not in operation, the wire is connected to a weight placed on the shelf, and the weight is operated during a foreshock. The apparatus is configured to prevent the article from dropping from the shelf, wherein the article protection net is configured to be placed by the solenoid that performs the operation so that the article protection net is positioned in front of the shelf board.

  The apparatus for preventing an article from falling from the shelf of the present invention fixes one end side of the article protection net (net) to the front part of the shelf board in the article storage shelf that supports the plurality of shelf boards by the shelf board support member, The other end side is formed in a cylindrical shape, a support shaft is passed through, both ends of the shaft are connected to a wire via a support bush, and the wire is connected to a weight placed on the shelf when not in operation. The item protection net is dropped by a solenoid that operates during a foreshock and the article protection net is positioned in front of the shelf. The device can be reliably operated, and the article protection net can be stretched from the bottom to the top without any gaps in the width direction, and the article can be securely held. Easy retrofitting to the rear storage shelf There is an effect that can be attached to.

  A preferred embodiment of the present invention will be described with reference to FIGS. 1 to 5. An apparatus for preventing an article of the present invention from falling is a shelf board in an article storage shelf 1 in which a plurality of shelf boards 3 are supported by a shelf board support member 2. 3 A net receiver 3 'is provided at the front, and one end side 4a of the article protection net 4 is fixed thereto, while the other end side 4b is formed in a cylindrical shape and passes through a support shaft 5, and both ends of the shaft 5 are connected to each other. The wire 7 is connected to the wire 7 via the support bush 6, and the wire 7 is connected to the weight 8 placed on the shelf when it is not operated, and the weight 8 is dropped by the solenoid 9 that operates during the foreshock, thereby protecting the article protection network. 4 is configured to be positioned in front of the shelf board 3.

The embodiment shown in the drawings will be described in more detail. Reference numeral 1 denotes an article storage shelf, which is formed by connecting four angle members 201 standing in a rectangular shape by left and right side plates 202, a back plate 203, an upper plate 204, and a lower plate 205. The shelf board support member 2 is configured, and a plurality of shelf boards 3 (301, 302, 303, 304) are detachably installed mainly by a stopper (not shown) provided on the angle member 201.

  Reference numeral 4 denotes an article protection net (net), which is prepared for each shelf board 301, 302, 303, 304. The width is slightly shorter than the inner method in the width direction of the article storage shelf 1, and the length is long. For example, as shown in FIG. 2, the one end 4a in the vertical direction is fixed to the net receivers 3'-1 and 3'-2 provided at the front portions of the shelf boards 301 and 302, while the other end 4b of the protective net is cylindrical. Is formed.

  A support shaft 5 having a length substantially equal to the width of the article storage shelf 1 is inserted into the other end cylindrical portion 4b of the article protection net 4 and protrudes from the article protection net 4 of the axis 5 so as to have both ends thereof. A support bush 6 is attached to the base.

  The support bush 6 supports the support shaft 5 so as to be rotatable in the left and right directions, and wires 7 are attached to the upper and lower sides thereof as follows. That is, in the case of the illustrated example, the support shaft 5 of the article protection net 4 belonging to the upper side of the bush 6 attached to the support shaft 5 of the article protection net 4 belonging to the lowermost shelf 304 and the third stage shelf 303. The lower part of the bush 6 attached to the upper side of the bush 6 attached to the support shaft 5 of the article protection net 4 belonging to the third shelf 303 and the article protection net 4 belonging to the second shelf 302. Belongs to the lower side of the bush 6 attached to the support shaft 5, the upper side of the bush 6 attached to the support shaft 5 of the article protection net 4 belonging to the second shelf 302 and to the first shelf 301. The lower side of the bush 6 attached to the support shaft 5 of the article protection net 4 is sequentially connected, and further from the upper side of the bush 6 attached to the support axis 5 of the article protection net 4 belonging to the shelf 301 in the first stage. Through the guide pipe 10 on the shelf 301 The ear 7 is suspended on the rear surface of the article storage rack 1, it is to couple to the weight 8.

  When the wire 7 is attached to the upper side or the lower side of the bush 6, as shown in FIG. 4, the bush 6 is used as the left and right split molds, and a wire holding portion 6 a is formed in the upper and lower sides, and the holding portion 6 a 7 was clamped and clamped by bolts and nuts 6b.

  The weight 8 is an iron-based pipe, for example, and when it is dropped while pulling up the article protection net 4 as shown in FIG. 2, the weight 8 is caught by a mechanism that prevents the protection net 4 from returning, for example, a hook 11. Like that.

  The solenoid 9 is a solenoid for dropping the weight 8, and is constructed such that the rod 9a is always energized and retracted and placed, and the piston rod 9a is projected by a built-in spring when the energization is cut off, as shown in FIG. As described above, the P wave detector 12 that is always ON is connected in series in the electric line.

  In the apparatus for preventing an article from falling from the shelf according to the present invention, the weight 8 is placed in front of the rod 9a of the solenoid 9 on the article storage shelf 1 in the normal state, and the other end cylindrical shape of the article protection net 4 at each stage. The part 4b is lowered from the state shown in FIG. 1 to the position shown in FIGS. 2 and 3 and held in the net receiver 3 ′.

  When a large earthquake occurs in the above state, as shown in FIG. 5, the P wave detector 12 detects the P wave and cuts off the current to the solenoid 9, so that the piston rod 9a of the solenoid 9 protrudes. The weight 8 is dropped.

  As a result, the wire 7 is pulled, and the article protection net 4 belonging to each shelf 301,... Is rapidly pulled up via the bush 6 and the support shaft 5, and covers the front surface of each shelf 301,. Since the weight 8 is caught by a mechanism that prevents the protection net 4 from returning, for example, the hook 11 after dropping, the action of covering the front surface of each shelf 301,... By the protection net 4 is maintained.

  Therefore, the articles placed on the respective shelves 301,... Are shielded by the respective article protection nets 4 and held on the shelves, and secondary accidents due to the fall of these articles are prevented in advance.

  In addition, the material of the article protection net | network 4, the magnitude | size of a mesh | network, etc. are suitably selected with the accommodation to a shelf. It is also conceivable that the storage location of the protective mesh 4 is provided on the lower front side of the article storage shelf. Further, the falling point of the weight is not limited to immediately after the article storage shelf, but may be a remote place. In short, it is sufficient that the article protection net 4 is pulled out via a wire and the front surface of the shelf can be effectively shielded.

  Since the apparatus for preventing an article from falling from the shelf of the present invention has a simple structure and can be manufactured at low cost, it may be widely used not only in factories but also in general warehouses, convenience stores, general stores, and the like.

It is a whole perspective view which shows an example of the apparatus which prevents the fall of the articles | goods from this invention shelf about during operation | movement or after an operation | movement. It is a half mounting front view which shows an example of the apparatus which prevents the fall of the articles | goods from this invention shelf before an action | operation. It is a partially abbreviated longitudinal cross-sectional view showing an example of a device for preventing an article from falling from the shelf of the present invention before operation. FIG. 4 is a partially omitted cross-sectional view of the vicinity of a net holder of an article protection net in an apparatus for preventing an article from falling from the shelf of the present invention. It is an electrical connection diagram of a P wave detector and a solenoid in a device for preventing an article from falling from the shelf of the present invention. It is a flowchart which shows the operation | movement order in the apparatus which prevents the fall of the articles | goods from this invention shelf.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Goods storage shelf 2 (201-205) Shelf board support member 3 (301-304) Shelf board 3 'Net receptacle 4 Goods protection net (net)
5 Support shaft 6 Support bush 7 Wire 8 Weight 9 Solenoid 10 Guide pipe 11 Hook (Mechanism for preventing return of article protection network)
12 P-wave sensor.

Claims (6)

In the article storage shelf that supports the plurality of shelf boards by the shelf board support member, one end side of the article protection net (net) is fixed to the front part of the shelf board, while the other end side is formed in a cylindrical shape and the support shaft is passed through. Both ends of the shaft are connected to a wire via a support bush. When the wire is not operated, the wire is connected to a weight placed on the shelf, and the weight is dropped by a solenoid that is operated during a pre-shock. An apparatus for preventing an article from falling from a shelf, wherein the apparatus is configured to be positioned in front of the shelf board. In the article storage shelf that supports the plurality of shelf boards by the shelf board support member, one end side of the article protection net (net) is fixed to the front part of the shelf board, while the other end side is formed in a cylindrical shape and the support shaft is passed through. Both ends of the shaft are connected to wires via support bushes, the wires are inserted into wire guides fixed to both ends on the article storage shelf, and connected to a weight placed on the shelf when not in operation. An article falling prevention device from a shelf, wherein the article is dropped by a solenoid that operates during a foreshock and the article protection net is positioned in front of the shelf board. The apparatus according to claim 1 or 2, wherein the one end side of the article protection net (net) is stored by a net holder provided at a front portion of the shelf board. The apparatus according to claim 1 or 2, wherein the solenoid is operated by a P-wave sensor. The apparatus according to claim 1, wherein the solenoid is actuated by an OFF signal of the sensor. 3. The apparatus according to claim 1, further comprising means for preventing the weight from returning from the position when the weight is dropped by a solenoid and the article protection net is pulled up to a predetermined position via the wire. Or the article fall prevention apparatus from the shelf of Claim 4 or Claim 5.

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