JP3383213B2 - Shelf mounted fall prevention device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelving object fall prevention device for preventing shelving objects placed on shelves such as article shelves and bookcases from falling and popping out.

[0002]

2. Description of the Related Art For various shelves such as article shelves and bookcases,
In order to prevent the shelf-mounted object from falling or popping out due to vibration during an earthquake or movement, a shelf-mounted object fall prevention device may be attached.

For example, a device as shown in FIG. 7 was attached to a bookcase. In the figure, (60) is a book stop member, and (50) is a pair of left and right attachment fittings attached to the left and right columns (42) on the front side of the shelves.

The book stopper member (60) is a hollow metal book stopper pipe (61) and a metal rod for connecting the left and right ends of the book stopper pipe (61) to the fitting (50). The book stopper pipe (61) is horizontally arranged in front of the books (41) arranged on the shelf plate (43), which is composed of a connecting metal fitting (62) bent in a U shape. , It is possible to prevent the books (41) from falling due to vibration such as an earthquake.

On the other hand, the pair of mounting brackets (50) are formed by bending a metal plate, and the side plate portions (51) of the pair of mounting brackets (50) facing each other are formed by the columns (4).
Fixing member such as a fixing pin (56) (5) on the inner wall surface of 2)
It is fixed in 6). The front end portion of the side plate portion (51) is in a state of projecting forward from the front wall surface (42a) of the column, and the front plate portion (52) is connected to the front end portion of the front plate portion (52). The second side plate portion (53) is connected to the side end of 52). The width of the front plate (52) is the front side wall surface (42a) of the column.
The width of the second side plate portion (53) is smaller than the width of the front side wall surface (42a) of the second side plate portion (53). One end of the connecting metal fitting (62) is fitted into each end opening of the book stopper pipe (61), while the other end of the connecting metal fitting (62) is attached to the second side plate portion (53) of the mounting metal fitting (50). The book stopper pipe (61) is inserted and pivotally supported in the vertically elongated hole (54) provided, and the other end of the connecting fitting (62) is used as a shaft portion.
Can be rotated up and down.

The above-mentioned conventional product thus constructed is
As shown by the chain line in the same figure, the book stopper pipe (61) is rotated from the bottom to the top about the shaft of the connecting fitting (62) to move the connecting fitting (62) to the second side plate of the fitting (50). The book (41) is arranged horizontally in front of the book (41) by being hooked on an L-shaped notch (55) provided at the upper ends of the section (53) and the side plate (51).

However, the above conventional products have the following drawbacks. That is, in the case of the above conventional product, the connecting metal fitting (62) must be used to connect the book stopper pipe (61) and the mounting metal fitting (50), but the connecting metal fitting (62) is bent in a U shape. Since it has to be formed, it is a little troublesome to manufacture, and there is a drawback that it causes an increase in cost.

When the book stopper pipe (61) is rotated from the bottom to the top in order to dispose the book stopper pipe (61) at the book restricting position, the shaft portion of the connecting fitting (62) is placed in the vertically elongated hole (54). Since it slides upwards, there is a drawback that a sliding sound is generated and annoy people around reading or studying.

Further, in a state where the connecting metal fitting (62) is hooked on the L-shaped notch (55) and the book stopper pipe (61) is arranged at the book regulating position, the connecting metal fitting (62) is supported by the column (42). ), It causes a problem of scratching the surface of the column (42) if the latching operation is repeated many times.

The present invention has been made in view of the above-mentioned difficulties, can be manufactured at low cost, and can quietly dispose a shelf mounting rod such as a book stopper pipe at a restricting position.
Moreover, it is an object of the present invention to provide a shelving object fall prevention device capable of holding the shelving object retaining rod at a regulated position without receiving the shelving object retaining rod by a column or the like.

[0011]

In order to achieve the above object, a shelf mounted object fall prevention device according to the present invention is provided with a pair of left and right fixtures attached to front end portions of left and right side plate portions of the shelf. A supporting arm portion supporting a shelf mounting object retaining rod arranged in front of the mounted object is rotatably attached to the front through a rotation mechanism, and the retaining rod is provided at a tip end portion of the supporting arm portion, By the forward rotation of the support arm portion, the stop rod can be moved between the front position of the shelf-mounted object and the position below the upper surface of the shelf board on which the shelf-mounted object is mounted. The rotating mechanism includes a circular hole and a rotation support shaft that is rotatably fitted in the circular hole, and the peripheral edge of the circular hole is connected to the circular hole to rotate the supporting arm forward. A non-circular rotation that regulates and holds the stop rod in front of the shelf-mounted object. While the support shaft engaging hole is provided, the rotation shaft has a cross section corresponding to the shape of the rotary support shaft engaging hole, said circular hole (31) said fixture
(2) is provided with the rotation support shaft engaging hole
(32) is provided in the lower part of the periphery of the circular hole (31),
The rotation support shaft (36) is provided on the support arm (10).
Adopted a structure in which there.

According to this, by arranging the shelving object retaining rod at the front position of the shelving object, it is possible to prevent the shelving object from dropping or popping out, and the shelving rod from the upper surface of the shelf plate. By arranging in the lower position, the shelf-mounted object can be taken out freely.

Further, by the operation of fitting the rotary support shaft into the rotary support shaft engaging hole, the rotary support shaft and the engaging hole are engaged with each other, whereby forward rotation of the support arm portion is restricted and the stop rod is provided. It is held at the front position of the shelves. Further, since the rotating mechanism is composed of the circular hole and the rotary support shaft rotatably fitted in the circular hole, the stopper rod is rotated from the bottom to the top in order to arrange the stopper rod in front of the shelf-mounted object. However, no loud noise is generated unlike the conventional product.

Further, when the stopper rod is held at the front position of the shelf-mounted object, the stopper rod is held at that position by the rotation restriction of the support arm portion due to the engagement between the rotation support shaft and the engagement hole. Therefore, the stopper rod can be held at the front position of the shelf-mounted object without receiving the stopper rod at the front end portions of the left and right side plate portions of the shelf.

Further, together with the circular hole is provided in the fixture, the one rotating support shaft engaging hole is provided in the peripheral lower portion of the circular hole, since the rotation shaft is provided in the support arm portion The operation of fitting the rotation support shaft into the engagement hole is performed by the weight of the support arm and the stop rod, and the fitting operation becomes even easier, as well as one rotation support shaft. The shaft engaging hole can hold the shelf mount retaining rod at two positions, namely, the front position of the shelf mount and the position below the upper surface of the shelf plate. Therefore, the device is simplified and the appearance of the shelf is not damaged.

Another aspect of the present invention is that of the shelf (40).
Left attached to the front ends (42) (42) of the left and right side plate parts
In front of the shelf mount (41) on the right pair of fixtures (2) (2)
Support arm for supporting the shelf mounting rod (20) arranged toward the user
Part (10) (10) can rotate forward through the rotation mechanism (30)
Attached to this support arm (10) (10)
The stop bar (20) is provided at the tip of the support arm.
More forward rotation of the unit (10), the stop rod (20) is a shelf placed
The front position of the object (41) and the shelf-mounted object (41) are placed.
It moves between the lower side of the upper surface (43a) of the shelf board (43) and
The rotation mechanism (30) is
Circular hole (31) and rotatably fitted in the circular hole (31)
The rotation support shaft (36) and the peripheral edge of the circular hole (31)
Is connected to the circular hole (31), and the support arm (10)
The forward rotation is restricted so that the stop rod (20) is placed on the shelf (41).
Position in front of and below the upper surface (43a) of the shelf (43)
Non-circular rotation support shaft engaging holes (32)
While the rotation support shaft (36) is provided with
It has a cross section corresponding to the shape of the support shaft engaging hole (32).
A shelf mounted article fall prevention device characterized by the above.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings.

In this embodiment, as shown in FIG. 4, a shelf mount fall prevention device (1) is applied to a bookcase (40). Therefore, the shelves placed on which the device (1) is prevented from falling and popping out are books (41). In addition, the pair of left and right attachments (2) and (2) attached to the front end portions of the left and right side plate portions of the shelf are
It is attached to both left and right front columns (42) (42). Hereinafter, the shelf-holding rod is referred to as a book-holding rod so as to follow this embodiment.

In FIG. 4, reference numeral (20) is a book stop rod made of a straight pipe material having a rod shape and having a predetermined length.
It is arranged horizontally in front of books (41) such as books, magazines and files placed on the upper surface (43a) of the shelf plate (43) of (0).

(2) The device (1) is used for writing (4)
A pair of left and right attachments for attaching to the bookshelf (4
It is removably attached to the left and right front columns (42) (42) of (0). As shown in FIGS. 1 and 2, the attachment tool (2) is formed by bending a metal plate, and a side plate portion (3) to be superposed on the inner wall surface (42b) of the column (42). And hook-shaped hooking pieces (4) (4) bent from the upper and lower portions of the rear end of the side plate (3) and the front side of the column (42) bent from the front end of the side plate (3). A front plate portion (5) superposed on the wall surface (42a) and a bearing plate portion bent so as to project from the upper side end of the front plate portion (5) to the front side of the front side wall surface (42a) of the support column (42). (6), and the hooking pieces (4) and (4) are hooked on the shelf plate position adjusting holes (44) (44) provided on the inner wall surface (42b) of the column (42). Therefore, it is attached to the column (42).

Reference numerals (10) and (10) denote support arm portions for supporting the book stop rod (20), which are attached to the bearing plate portion (6) of the fixture (2) through a rotation mechanism (32) described later. It is attached so that it can rotate forward and can change from a standing posture to a hanging posture.

Then, both end portions of the book stop rod (20) are attached to the front end portions of the support arm portions (10) (10) as follows. That is, as shown in FIG.
At the tip of the support arm (10), a book stop rod attachment hole (11
A connecting portion (11) having a) is integrally provided with the opening of the attachment hole (11a) facing the inside of the bookcase, and each end of the book stop rod (20) is tightly fitted into the attachment hole (11a). By doing so, the book stop rod (20) is connected to the tip end portions of the support arm portions (10) (10).

The book stopper rod (20) attached to the tip of the supporting arm portion (10) in this way has the books (4) as shown in FIG. 4 when the supporting arm portion (10) rotates forward.
It is possible to move between the front position of 1) and the position below the upper surface (43a) of the shelf plate (43) on which the books (41) are placed as shown in FIG. ing. The book stop rod (20) is placed in front of the books (41) when the support arm (10) is in the standing posture, and is in a restricted state for preventing the books (41) from falling. On the other hand, when the support arm portion (10) is in the drooping posture, the upper surface (43a
), The book (41) is released from the regulation.

Next, the rotating mechanism (30) will be described.

As shown in FIG. 2, the bearing plate (6) of the fixture (2) has a circular hole (31) opened in the left-right direction.
And a rotation support shaft engaging hole (32) which is continuous with the circular hole (31) and which is cut out downward in a substantially rectangular shape in the longitudinal direction is provided in the lower peripheral portion of the circular hole (31). .

On the other hand, in each of the support arm portions (10), a rotation support shaft (36) which is inserted in the circular hole (31) and is rotatably fitted in the circular hole (31) and oriented in the left-right direction. Is attached as follows. The rotation support shaft (3
6) has a cross section corresponding to the shape of the engagement hole (32), that is, a substantially rectangular cross section, and as shown in FIG.
The short side portions (36a) (36a) bulge in an arc shape and come into surface-contact with the inner peripheral surface of the circular hole (31) so that sliding contact with the inner peripheral surface becomes smooth. . The rotation support shaft (36) can be fitted into the engagement hole (32) from the short side (36a) (36a) side, but from the long side (36b) (36b) side. It is impossible to fit in the engaging hole (32). In addition, the engagement hole (3
The bottom of 2) is formed in an arc shape, and the rotation support shaft (36)
It is designed to correspond to the shape of the short side parts (36a) (36a) of the rotary support shaft (36).
Insert the rotation support shaft (36) from the a) side into the engagement hole (32).
When engaging with the engaging hole (32), the rotation support shaft (36)
The short side (36a) of the rotary support shaft (36) comes into surface contact with the bottom of the engaging hole (32).
It is said that it is possible to receive).

On the other hand, as shown in FIGS. 2 and 3, on the outer surface of the base end portion of the support arm portion (10), a rotary support recessed corresponding to the sectional shape of the rotary support shaft (36) is provided. A shaft mounting recess (12) is provided up to an intermediate portion in the thickness direction.
On the other hand, a screw insertion hole (13) is provided on the inner side surface of the base end portion of the support arm portion (10) so as to communicate with the mounting recess (12). The attachment recess (12) becomes vertically long when the support arm (10) is in a standing posture and the book stop rod (20) is placed in front of the books (41).
The direction of the engaging hole (32) is the same. Therefore, even when the supporting arm portion (10) is in the hanging posture and the book stopper rod (20) is arranged below the upper surface (43a) of the shelf plate (43), the book arming rod becomes vertically long and the engaging hole is formed. (3
It will be the same as the direction of 2).

(35) has the rotary support shaft (36),
A connecting member with a rotary support shaft for connecting the support arm (10) to the attachment (2) so as to be rotatable forward. A disc-shaped flange portion (37) is integrally provided at one end of the rotary support shaft (36) in the connecting member (35). A screw hole (38) is provided on the end surface of the rotary support shaft (36).

Then, by using this connecting member (35), the rotary support shaft (36) is inserted into the circular hole (31) so as to be rotatably fitted in the circular hole (31), and the tip end thereof is Fit into the mounting recess (12) of the support arm (10), then insert the screw (39) into the screw insertion hole (13) of the support arm (10) to insert into the screw hole (38) of the rotary support shaft (36). ), The rotary support shaft (36) is attached to the support arm portion (10), and the support arm portion (10) is rotatably connected to the fixture (2).

In FIGS. 1 and 2, reference numeral (45) is an auxiliary side plate for receiving books (41) placed on the shelf plate (43) from the side, and a hook provided at the front end thereof. Attaching to the column (42) by hooking the hook part (45a) of the mold to the shelf plate position adjusting holes (44) (44) provided on the inner wall surface (42a) of the column (42). Has been. on the other hand,
The shelf plate (43) is supported by a shelf plate support piece (45b) provided at the lower end of the auxiliary side plate (45).

In FIG. 5, the book stopper rod (20) in the device (1) having the above structure is shown in the upper surface (43a) of the shelf plate (43).
It shows the state of being placed in the lower position, such as books (4
1) can be taken out freely.
At this time, the support arm portion (10) is in a drooping posture, and the rotation support shaft (36) attached to the support arm portion (10).
As shown in FIG. 6 (a), is fitted exactly into the engagement hole (32) provided in the bearing plate portion (6) of the fixture (2). Therefore, the support arm portion (10) cannot rotate forward, and thus the book stop rod (20) is held in that position so as not to move.

When the book stopper rod (20) is slightly lifted from this state, the rotary support shaft (36) attached to the support arm portion (10) is engaged as shown by the chain line in FIG. 6 (a). It escapes from the hole (32) and moves into the circular hole (31). Then, when the book stop rod (20) is pulled up and lifted, the rotary support shaft (36) causes the short side portions (36a) (36a) of the circular hole (31) as shown in FIG. 6 (b). By rotating in the circular hole (31) while making sliding contact with the inner peripheral surface of the support arm (10), the support arm (10) smoothly rotates forward. When the support arm (10) is in the standing posture, the book stop rod (20) is located in front of the books (41), and
As shown in FIG. 6C, the rotation support shaft (36) is re-fitted into the engagement hole (32) by the weight of the book stopper rod (20) and the support arm portion (10), and the rotation support shaft (36) is re-inserted. As a result of the engagement between the (36) and the engagement hole (32), further rotation of the support arm portion (10) is restricted. As a result, as shown in FIG. 4, the book stop rod (20) is held at the front position of the books (41). By holding the book stop rod (20) in front of the books (41) in this way, it is possible to reliably prevent the books (41) from falling or popping out due to vibration such as an earthquake.

On the other hand, when taking out the books (41),
The book stop rod (20) is slightly lifted to allow the rotation support shaft (36) to come out of the engagement hole (32), and then the book stop rod (20) is pulled toward you to move downward. Rotate the arm (10) forward. Then, when the support arm (10) is in a hanging posture, the book stop rod (20) moves to a position below the upper surface (43a) of the shelf plate (43) to regulate the books (41). Is released, and the rotation support shaft (36) is re-fitted into the engagement hole (32) by the weight of the book stopper rod (20) and the supporting arm portion (10), so that the supporting arm portion (10) Further rotation is restricted, and as shown in FIG. 5, the book stop rod (20) is held at a position below the upper surface (43a) of the shelf plate (43), that is, at the restriction release position.

In this way, the book stop rod (20) is replaced with the books (41).
In the state where it is placed in the regulation position to
The book stop rod (20) is not received by the support column (42) or the shelf plate (43) and held at that position, but the rotation support shaft (36) is fitted in the engagement hole (32). Since the support arm portion (10) is held at that position due to the rotation restriction of the support arm portion (10), the operation of arranging the book stop rod (20) at the restriction position or the restriction release position is repeated many times. Does not damage the surface of the column (42) or shelf (43).

The device (1) also includes a rotating mechanism (30).
Of the circular hole (31) and the rotary support shaft (36) that constitute the circular hole (31), the circular hole (31) is provided in the fixture (2), and the engaging hole (32) is the peripheral edge of the circular hole (31). While being provided in the lower part, the rotation support shaft (36) is attached to the support arm portion (10), so that the rotation support shaft can be used when the support arm portion (10) takes either a standing posture or a hanging posture. The (36) can be fitted into the engagement hole (32). Therefore, this device (1) can hold the book stop rod (20) at each of the two positions, the restricting position and the restricting releasing position. For this reason, a movable bookshelf (not shown) as well as the bookshelf (40) installed independently as in the above embodiment is used.
Even when this device (1) is attached to the book, the book stop rod (20) placed at the restriction release position sways due to the vibration when the bookcase is moved, and the book stop rod (20) is supported by the column (42).
It also has the advantage that it will not make a rattling noise when hitting the shelf or the shelf plate (43), and that there will be no problem of the book stop rod (20) hitting the front shelf when the bookcase is moved. .

Further, since the fixtures (2) are all formed by bending, the safety is high.

An embodiment of the shelving material fall prevention device has been described above. However, the shelving material fall prevention device (1) according to the present invention is not limited to the bookshelf (40) shown in the above embodiment, and other than that. It can be attached to various shelves.
For example, the shelf mount fall prevention device according to the present invention may be attached to an article shelf. Along with this, it goes without saying that the shape of the mounting tool and the mounting method thereof can be variously changed.

Further, among the circular hole (31) and the rotary support shaft (36) constituting the rotary mechanism (30), the circular hole (31) is provided in the support arm (10) and the rotary support shaft support Aperture (3
2) Supporting arm (10) Circular hole (31) when standing up
The rotation support shaft (36) may be provided on the fixture (2) while it is provided on at least the upper edge of the upper and lower edges of the periphery. In this case, if the engaging holes (32) are provided at both upper and lower peripheral edges of the circular hole (31) when the supporting arm portion (10) is in the upright posture, the supporting arm portion is provided as in the above embodiment. (1
The rotation support shaft (36) can be fitted into the engagement hole (32) even when the (0) is in a hanging state, and the book stopper rod (20) is held at the restriction release position. Will be possible.

[0039]

As described above, the shelving object fall prevention device according to the present invention is arranged in front of the shelving object on the pair of left and right fittings attached to the front end portions of the left and right side plate portions of the shelf. A supporting arm portion that supports the shelf mounting object holding rod is rotatably mounted forward through a rotation mechanism, and the holding rod is provided at the tip of the supporting arm portion so that the supporting arm portion can rotate forward. The stopper rod can be moved between the front position of the shelf-mounted object and the position below the upper surface of the shelf plate on which the shelf-mounted object is mounted. It is possible to prevent the shelves from falling or popping out by arranging the shelves at the front position of the shelves, and by arranging the stop rod below the upper surface of the shelves, the shelves can be taken out freely. it can.

Further, the rotating mechanism comprises a circular hole and a rotary support shaft rotatably fitted in the circular hole, and the peripheral edge of the circular hole is continuous with the circular hole, and the rotating arm is connected to the circular hole. While a non-circular rotation support shaft engaging hole for restricting the forward rotation to hold the stop rod at the front position of the shelf-mounted object is provided,
Since the rotation support shaft has a cross section corresponding to the shape of the rotation support shaft engagement hole, forward rotation of the support arm portion is restricted only by inserting the rotation support shaft into the engagement hole. Since the stop rod can be held at the front position of the shelf-mounted object, the stop rod can be held at the front position of the shelf-mounted object by an extremely simple operation, and the device has a relatively simple structure. As a result, the device can be manufactured at low cost. Also,
Since the rotating mechanism is composed of a circular hole and a rotary support shaft that is rotatably fitted in the circular hole, even if the stopper rod is rotated from bottom to top in order to arrange the stopper rod in front of the shelf-mounted object, No loud noise is generated as in the case of the product, and the stop rod can be gently placed in front of the shelf-mounted object.

Further, when the stopper rod is held at the front position of the shelf-mounted object, the stopper rod is held at that position by the restriction of the rotation of the support arm portion due to the engagement between the rotary support shaft and the engagement hole. Therefore, the stop rod can be held at the front position of the shelf-mounted object without receiving the stop rod at the front end portions of the left and right shelf plates such as columns. Therefore, the device according to the present invention is advantageous in that the surface of the front end portions of the left and right side end portions of the shelf is not damaged even if the operation of arranging the stop rod at the front position of the shelf mounted object is repeated many times. Have.

Further, together with the circular hole is provided in the fixture, the one rotating support shaft engaging hole is provided on the lower side of the circular hole, since the rotation shaft is provided in the support arm portion The rotation support shaft can be fitted into the engagement hole by the weight of the support arm portion and the stop rod, and the fitting operation can be performed more easily. Since the stopper rod can be held at two positions, that is, the front position of the shelf-mounted object and the position below the upper surface of the shelf plate, the device can be further simplified and the appearance can be maintained. be able to. Further, even when this device is attached to a movable book shelf, the stop rods arranged below the upper surface of the shelf board sway due to vibrations when the book rack is moved, and the stop rods are moved to the left and right end portions of the shelf. It will not make a rattling noise when hitting the front end of the shelf or the shelf, and the problem that the stop rod will hit the front shelf when moving the bookshelf will not occur, so it is quiet and safe. You can move the bookshelf.

[Brief description of drawings]

1A and 1B are diagrams showing a case where a shelf-mounted object fall prevention device according to an embodiment of the present invention is applied to a bookcase. FIG. 1A is a front view of the device, and FIG. 1B is a view of I in FIG. 1A. (B) -I (b) line sectional view, (c) is the I (c) -I (c) line sectional view in the same figure (a).

FIG. 2 is an exploded perspective view of the device.

FIG. 3 (a) is a longitudinal sectional view showing the device in an exploded manner;
(B) is a side view taken along line III (b) -III (b) in FIG.

FIG. 4 is a front view showing a state in which a book stopper rod of the same device is arranged at a front position of books.

FIG. 5 is a front view showing a state in which a book stopper rod of the device is arranged below the upper surface of the shelf plate.

FIG. 6 is a view of a circular hole and a rotation support shaft showing a rotation mechanism of the device, (a) shows a book stopper rod arranged below the upper surface of a shelf, and (b) shows a book stopper rod in front. (C) shows that the book stop rod is arranged at the front position of the books when the book stop rod is pulled to.

FIG. 7 is a perspective view showing a conventional book drop prevention device.

[Explanation of symbols]

1 ... Shelf mounted object fall prevention device 2 ... Fixture 10 ... Support arm 20 ... Book stop rod (shelf mounted stop rod) 30 ... Rotation mechanism 31 ... Circular hole 32 ... Rotary support shaft engaging hole 36 ... Rotary support shaft 40 ... Bookcase (shelf) 41… Books (shelf objects) 42 ... Front column (front end of both left and right plate parts) 43 ... Shelf

Claims (2)

(57) [Claims] 1. The front end portions (42) of the left and right side plate portions of the shelf (40).
A pair of left and right fixtures (2) attached to (42)
In (2), support arm portions (10) (10) for supporting a shelf-mounting object retaining rod (20) arranged in front of the shelf-mounting object (41) are rotatable forward through a rotation mechanism (30). The support rod (10) (10) is attached to the front end of the support arm (10) (10), and the stop rod (20) is rotated by the front rotation of the support arm (10). The front position of the shelf mount (41) and the upper surface (43) of the shelf plate (43) on which the shelf mount (41) is mounted.
a) It can move between a lower position and a lower position, and the rotating mechanism (30) includes a circular hole (31) and the circular hole (31).
A rotary support shaft (36) that is rotatably fitted to the circular hole (31), and is connected to the circular hole (31) at the periphery of the circular hole (31) so as to prevent the support arm (10) from rotating forward. A non-circular rotation support shaft engagement hole (32) for restricting and holding the stop rod (20) at the front position of the shelf mount (41) is provided, while the rotation support shaft (36) is Rotation support shaft engaging hole (32)
When the circular hole (31) is provided in the fixture (2), the cross section has a cross section corresponding to the shape of
In both cases, the rotation support shaft engaging hole (32) has a circular hole (31).
The rotation support shaft (36) is provided in the front
A shelf mounted article fall prevention device, characterized in that it is provided on the support arm portion (10) . 2. A front end portion (42) of the left and right side plate portions of the shelf (40).
A pair of left and right fixtures (2) attached to (42)
(2) Shelving placed in front of the shelving (41)
The supporting arms (10) (10) supporting the stop rod (20) are rotating machines.
It is attached so that it can rotate forward through the structure (30).
At the tip of this support arm (10) (10),
(20) is provided to rotate the support arm (10) forward.
As a result, the stop rod (20) is located at the front of the shelf mount (41).
The upper surface (43) of the shelf plate (43) on which the shelf mount (41) is mounted.
a) When it is made possible to move between the lower position and
In both cases , the rotating mechanism (30) has a circular hole (31) and the circular hole (31).
A rotary support shaft (36) rotatably fitted to the circular hole (31) and connected to the circular hole (31) at the peripheral edge thereof.
Restricts the forward rotation of the support arm (10) to prevent the stop.
Install the rod (20) in front of the shelf mount (41) and on the shelf board (43).
Non-circular shape that is held below the top surface (43a)
Rotation supporting shaft engaging hole (32) is provided, while the rotation supporting shaft (36) is provided with the rotation supporting shaft engaging hole (32).
Shelf characterized by having a cross section corresponding to the shape of
Placement fall prevention device.