JP4447235B2 - Fall prevention device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fall prevention device that prevents an article from falling from a shelf.
[0002]
[Prior art]
Conventionally, as a means for preventing articles stored in a warehouse or the like from dropping due to vibration or the like, a method of installing a chain or a rod-shaped drop prevention means on a support column of a shelf is generally taken. In addition, a method has been proposed in which the fall prevention means works during vibration to prevent the article from falling (Patent Document 1). Furthermore, by installing a rod-shaped fall prevention member having an annular indirect portion in the vertical direction, a method for enabling easy installation and release of the fall prevention means (Patent Document 2), a rotational drive type of the fall prevention member There has been proposed a method (Patent Document 3) in which the fall prevention means is installed and released by moving it up and down with a lifting mechanism.
[0003]
[Patent Document 1]
JP-A-8-138709 [Patent Document 2]
Japanese Utility Model Publication No. 5-65913 [Patent Document 3]
JP-A-7-172523 [0004]
[Problems to be solved]
However, although the method of simply installing the fall prevention member on the shelf can be easily performed, it becomes an obstacle to taking in and out the article. For this reason, it is necessary to use a stepladder or ladder to release the fall prevention means each time an article is put in or taken out, so it is necessary to release it using a stepladder or ladder. There is a danger such as. In addition, the method of detecting the vibration and operating the fall prevention means is normally in a released state, and therefore does not have the fall prevention means unless vibration is detected. Further, in a warehouse or the like for storing heavy items, there is a possibility that the apparatus may operate due to the vibration of the shelf when an article is put in and out, and there is a possibility that the work may be hindered or an accident may be caused. The method of installing the rod-shaped fall prevention member having the annular indirect portion in the vertical direction is the same as the state without the fall prevention means during the work because the shelves in the same row in the vertical direction are simultaneously released during the work. In addition, when the position of a shelf such as a warehouse reaches a high place, the weight of the fall prevention member and the position of the suspension seat are high, and thus it cannot be said that the release of the fall prevention means is simple. As for the method of raising and lowering the fall prevention member with the rotary drive type lifting mechanism, it is necessary to install a drive mechanism for each fall prevention means to move up and down, so a space for the drive mechanism is required, and it is necessary to install it on an existing shelf etc. It is difficult to install simply. Moreover, since the fall prevention means connected to one drive mechanism is released in the same way, it is insufficient to prevent an accident during the taking in / out operation of the article.
[0005]
An object of the present invention is to solve such a problem, and to provide a fall prevention device that does not get in the way when an article stored in a shelf or rack at a high position is taken in and out and is very easy to install.
[0006]
[Means for Solving the Problems]
That is, the present invention provides a device for preventing the fall of stored articles from the shelf a plurality of stages, each of the plurality of shelves are independently vertically movable fall prevention member arranged in parallel to the rack, preventing under該落A pair of slide members arranged on both sides of the shelf to support the member at both ends and assisting the vertical movement thereof, a pair of cords arranged to suspend the fall prevention member at both ends, A guide member arranged so as to guide each of the cord-like bodies in the same direction above the corresponding slide member, and a pair of cord-like bodies passing through the guide member from the slide member on one side of the shelf It has a fixing member that is fixed integrally at the lower part , and the fixing member is in a position that can fix each pair of measures for a plurality of shelves in the vertical direction at the same place, and each of the plurality of shelves The fall prevention member is operated independently for each shelf. It is anti-fall device according to claim which has become possible.
[0007]
The fall prevention device of the present invention effectively prevents the stored article from dropping in a normal state, and can efficiently perform the work without interfering with the work when the stored article is taken in and out. Moreover, the fall prevention device of the present invention is installed for each of a plurality of shelves including shelves at a high place, and can be opened and closed easily and safely by one for a plurality of upper and lower shelves.
[0008]
Moreover, since the fall prevention device of the present invention has a simple structure, it can be easily installed not only on a new shelf but also on a shelf such as an existing warehouse.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0010]
FIG. 1 is a schematic explanatory view of a fall prevention device of the present invention. The fall prevention member 1 is arranged in parallel with a shelf (not shown), and both ends thereof are attached to the slide members 2 and 2 'so as to be freely movable up and down, and are suspended at both ends (including the vicinity). The cable-like bodies 3 and 3 ′ are attached, and the pulleys with the rope-like bodies 3 and 3 ′ arranged on the upper part thereof are integrated through guide members 4, 4 ′ and 4 ″, which are typical examples, and the other ends thereof are connected. It can be fixed to the fixing member 5. When the shelf is released, an appropriate holding member 6 is provided at the end of the cord-like bodies 3 and 3 'positioned below the fixing member 5. This holding member. 6 by manually pulling the cord-like bodies 3 and 3 ′, the position of the fall prevention member 1 from the position showing the original fall prevention function (the lower end where the slide member can be moved up and down or in the vicinity thereof) is indicated by a dotted line in the figure. Raise to the indicated position (upper or lower position that can be moved up and down by slide member) and fix As a result, the shelf is in a released state, and it is possible to easily carry in and out articles at high places.In the present invention, it is possible to easily put in and out articles without releasing the apparatus at high places. Also, since the vertical movement of the fall prevention member can be performed manually, the power unit can be omitted and the power transmission unit can be simplified, so that the slide member is fixed to the left and right columns of the shelf. Therefore, it can be installed very easily.
[0011]
In the present invention, one set of fall prevention devices is installed per shelf (unit shelf). Opening and closing more efficiently by installing the same equipment on multiple high-level shelves that are out of reach in so-called multi-level racks, and consolidating the grips at the ends of each pair of cords Work can be performed.
[0012]
The fall prevention member 1 of the present invention can be selected from a metal or plastic rod-like body, tubular body, or plate-like body, but a rod-like one, particularly a metal pipe, is preferable because it can be simplified in terms of structure. Both ends of the fall prevention member are attached to the slide members 2 and 2 ′ so as to be movable up and down.
[0013]
The slide members 2 and 2 'are usually attached to the right and left columns of the shelf so as to assist at least raising the fall prevention member 1 from a position where the fall prevention member 1 can exhibit the fall prevention function to a position where it does not hinder the operation of putting in and taking out stored articles. Install. It is preferable that the height of 1 to 1/3 of the height of one shelf is positioned so that the fall prevention member 1 can move up and down.
[0014]
An example of the slide members 2 and 2 ′ is shown in FIG. A is a plan view, B is a side view, and C is a bottom view. A sliding member 9 such as a metal rod is attached to a metal or wooden flat plate 8 in a U-shape. And the edge part of the fall prevention member 1 is attached to the vertical part of the member 9 for a slide so that an up-down movement is possible. The flat plate 8 is usually attached to the right and left columns of the shelf.
[0015]
As a method of attaching the fall prevention member 1 to the slide member 9 so as to be movable up and down so as not to be detached, in FIGS. 2B and 2C, the removal prevention member 10 (so-called slide ring) having a structure in which the tubular body is cut into a ring. Is attached to the sliding member 9 and a joining portion 11 for fixing the fall preventing member 1 to the detachment preventing member 10 is shown.
[0016]
The detachment preventing member and the fall preventing member may be integrated or other appropriate structures. An example is shown in FIG. In the embodiment shown in FIG. 3, a rod-shaped joint 11 ′ is attached to the detachment preventing member 10 by welding or the like, and the tubular drop preventing member 1 is fitted to this and fixed with a fixing screw.
[0017]
In this case, it is preferable to provide a groove in a portion that contacts the fixing screw in the rod-shaped joint portion 11 to increase the contact area with the fixing screw. Further, the groove provided in the rod-shaped joining member can have a structure that does not reach the tip, and thus it is possible to prevent an accident caused by the joining member falling off when the fall preventing member is installed.
[0018]
The cord-like bodies 3, 3 ′ of the present invention may be any cord-like or linear member that can be deformed in the length direction and does not change in length under use conditions, but is preferably a wire, particularly preferably a stainless steel wire. Is used. The cord-like bodies 3 and 3 'are fixed at their lower ends where the fall-preventing member 1 is attached at one end and are joined together via the guide members 4, 4 "and 4"' so that the operator can work easily. Fix to member 5. A gripping member 6 is provided at the other end of the cord-like bodies 3 and 3 ′. The gripping member 6 is a pulling portion for operation, and the shape thereof is preferably a shape that is easy for an operator to work, such as an annular shape or a rod shape.
[0019]
In the case of an annular shape, the wire may be formed in an annular shape. In this case, it is preferable to attach a synthetic resin or rubber cover in order to protect the operator's hand. In addition, the gripping member 6 is preferably colored so that when the fall prevention device of the present invention is installed on a plurality of shelves, the correspondence with the shelves can be identified by the colors. Further, the fall prevention member 1 and the slide members 2 and 2 ′ can be colored to match the gripping member 6 and the color, thereby further improving the discrimination.
[0020]
The guide members 4, 4 ′, 4 ″ of the present invention may be anything that can be used for the purpose of changing the direction of the cord-like bodies 3, 3 ′, but a pulley is used to reduce the friction on the cord-like bodies. The shape of the pulley is not particularly limited, but preferably has a shape that prevents the cord-like body from being detached from the pulley.
[0021]
The fixing member 5 of the present invention is for fixing the cord-like bodies 3 and 3 'in a lowered state, that is, in a state in which the fall preventing member 1 is pulled up. Is preferably provided for fixing. The fixing member 5 is set to a height at which a normal worker can easily work. The fixing member 5 is used when the fall prevention member 1 is pulled up to release the shelf. A plurality of fixing members are provided in the vertical direction, and the fall prevention member 1 functions as an upper fixing member. It can also be used for fixing the cords in the normal state.
[0022]
As an example of the fixing member 5, an L-shaped stainless steel angle provided with a cord fixing groove can be cited. In order to prevent accidents due to contact during work, the tip is preferably folded. An example is shown in FIG.
[0023]
As described above, the fall prevention device of the present invention is preferably installed on each of a plurality of shelves in the height direction, and it is preferable to fix the gripping members of each pair of cord-like bodies at one place. It is preferable to provide the fixing member with fixing grooves corresponding to the number of combined fall prevention devices. Note that other means such as a hook may be used as the fixing member.
[0024]
Further, when the position of the shelf and the position of the fixing member 5 are separated from each other, the cord-like guide member 8 can be provided as necessary, separately from the guide member having the pulley as a typical example. As an example, an L-shaped stainless steel angle provided with a hole through which a cord-like body passes (wire guide) can be cited. An example is shown in FIG.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an example of a fall prevention device of the present invention.
FIG. 2 is an explanatory view showing an example of a slide member.
FIG. 3 is an explanatory view showing an example of attachment of a detachment prevention member and a fall prevention member.
FIG. 4 is an explanatory view showing an example of a fixing member.
FIG. 5 is an explanatory view showing an example of a guide member for a cord-like body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fall prevention member 2, 2 'Slide member 3, 3' Cord-like body 4, 4 ', 4 "Pulley 5 Fixing member 6 Holding member 7 Fixing tool 8 Flat plate 9 Sliding member 10 Desorption prevention member 11 Desorption prevention member And the fall prevention member 12 Groove 13 for fixing the cable-like body Holes 14 and 14 'for passing the cable-like body

Claims (7)

In an apparatus for preventing the fall of stored items from a plurality of shelves, each of the plurality of shelves independently supports a fall-preventing member that is arranged in parallel with the shelves and that can be moved at both ends. And a pair of slide members arranged on both sides of the shelf to assist the vertical movement, a pair of cords arranged to suspend the fall prevention member at both ends, and each of the cords A guide member disposed so as to be guided in the same direction above each corresponding slide member and a pair of cords passing through the guide member are integrally fixed below the slide member on one side of the shelf. It has a fixing member , and the fixing member is in a position where a pair of measures for a plurality of shelves in the vertical direction can be fixed at the same place, and each fall prevention member of the plurality of shelves is provided for each shelf. independently has become a possible operation Anti-drop device according to claim and. The fall prevention device according to claim 1 , wherein the fall prevention member is a rod-shaped body. Slide member has a slide member comprising a rod-shaped body of the slide, comprising attached via a detachment preventing member having a function of preventing and desorption to allow vertical movement of the fall preventing member in the slide member according Item 3. A fall prevention device according to item 1 or 2 . The fall prevention device according to any one of claims 1 to 3 , wherein the cord-like body is a wire rope, and the guide member for the cord-like body is a pulley. The fall prevention device according to claim 1 , wherein at least three guide members for the cord-like body are used. The fall prevention device according to any one of claims 1 to 5 , wherein the slide member is installed on columns on both the left and right sides of the shelf. The fall prevention device according to any one of claims 1 to 6 , wherein an end portion of the cord-like body has a gripping member.

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