JP3029113U - Bookshelf prevention device for books - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a book drop prevention device for a book shelf that can reliably prevent the book from falling off the book shelf even if it is shaken by an earthquake, has a low manufacturing cost, and is easy to use. SOLUTION: A fall prevention tool A is formed by bending a single rod. The supports 8 and 9 at both ends are rotatably supported by the shelf height adjusting holes 5 of both side plates 3 and 4 of the bookcase 1. The blocking body 12 was connected between the two supports 8 and 9 via the connectors 10 and 11 along the side plates 3 and 4. The blocking body 12 is located in front of the book 14 due to its sitting position due to its own weight. The books can be freely taken in and out by lifting the blocking body 12 by hand.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a book drop prevention device for a book shelf that prevents books from falling out of the book shelf when a shake such as an earthquake occurs.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, there was a bookshelf in which a plurality of shelves were installed between a pair of facing side plates, but when the earthquake caused vibration, the books on the shelves jumped forward and dropped. Therefore, it is demanded to apply a device to prevent such a drop-off to a bookshelf. Normally, books in and out of the bookshelf are frequently taken in and out, so that books can be put in and taken out easily and are convenient. Is preferred. Moreover, even if it is easy to use, it is necessary to prevent the books from falling off in case of emergency.

[0003] Although it is preferable that the above-mentioned device be widely used, it is necessary that the manufacturing cost of the bookshelf as a whole does not become too high. The present invention has been made in view of the above problems, and an object of the present invention is to reliably prevent a book from falling out of a bookshelf even if it is shaken by an earthquake, which is low in manufacturing cost and easy to use. It is to provide a good, bookshelf retention device.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a book drop prevention device of a bookcase of the present invention comprises a pair of support bodies that are rotatably fitted in opposite shelf height adjusting holes of a pair of side plates of the bookcase, and one end. A part is connected to each support body, is installed between a pair of connection bodies substantially along each side plate, and the other end portions of these connection bodies, and is placed on the shelf as the support body rotates. It is equipped with a long obstruction body whose posture is changed to a lower position to prevent the book from falling off and an upper position to retract to allow the book to be taken out, and the obstruction body has a sitting relationship. It is characterized by being urged downward due to its own weight.

Generally, in a bookcase, the user can freely set the height of the shelf. That is, a plurality of shelf height adjusting holes are provided at predetermined intervals on both side plates, and both ends of the shelf are adjusted by the support rods inserted into the shelf height adjusting holes appropriately selected by the user. I try to support the department. The shelf height adjustment holes, in which the support rods for supporting the shelves are not inserted, remain open.

[0006] The inventor of the present application can install a book drop-out prevention tool in the empty shelf height adjusting hole without changing the design of a conventional book shelf. I thought that I could achieve the fall prevention. Therefore, in the present invention, the obstruction body always descends to the front side of the book due to the sitting relationship, and maintains the downward posture to prevent the book from falling off. Therefore, even if the book is about to jump out toward the front of the bookshelf due to the vibration caused by the earthquake, the stopper can surely prevent the book from falling off. On the other hand, when the blocking body is lifted, rotated around the support body and moved to the upper side of the book, the posture can be easily changed to the upper posture which allows the taking out of the book.

Here, the phrase “the connecting body is substantially along the side plate” includes the case where the connecting body contacts the side plate and the case where the connecting body does not contact the side plate. When the connecting body comes into contact with the side plate, it is necessary to prevent the friction generated between them from hindering the displacement of the blocking body due to the sitting relationship. On the other hand, if the connecting body does not contact the side plate, there is no possibility of impeding the displacement of the blocking body.

Further, it is preferable that the support body, the coupling body, and the blocking body are made of a single rod member formed in a bent shape, because the manufacturing cost can be reduced. Further, if a part of the blocking body is bent to form the finger hooking portion, the finger hooking portion can be used when the blocking portion is retracted to the upward posture, so that the operability is good. Moreover, since the finger-holding portion is formed of a part of the blocking body, the manufacturing cost can be reduced as compared with the case where the finger-holding portion is configured by another member.

[0009]

[Embodiment of device]

 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a book drop prevention device for a bookshelf according to a first embodiment of the present invention, and FIGS. 2 and 3 are perspective views showing a usage state thereof. With reference to these figures, the book drop prevention device A is applied to the bookcase 1. The bookcase 1 has a pair of side plates 3 and 4 facing the rear plate 2, and a plurality of shelf height adjusting holes 5 are installed at predetermined intervals at positions of the side plates 3 and 4 facing each other. ing. The shelf height adjusting hole 5 includes a front hole 5a and a rear hole 5b arranged on the front side of the facing surfaces of the side plates 3 and 4. Both ends of the shelf 7 are supported by support pins 6 inserted into desired shelf height adjusting holes 5a and 5b.

On the other hand, the book drop prevention tool A is made of a single bar material such as a wire formed in a bent shape, and both ends thereof are located at positions where the side plates 3 and 4 face each other. It is inserted into the shelf height adjusting hole 5a. Both end portions are arranged on the same axis and constitute support bodies 8 and 9 which are rotatably supported by corresponding shelf height adjusting holes 5a.

One end of each of a pair of connecting members 10 and 11 extending along the side plates 3 and 4 is connected to the supporting members 8 and 9 in a substantially orthogonal shape. In addition, the long blocking body 12 connects the other end portions of the respective coupling bodies 10 and 11. The blocking body 12 descends to the front side of the book 14 as shown in FIGS. 2 and 4 (a) as the supports 8 and 9 rotate, and prevents the book 14 from falling off the shelf. As shown in FIG. 4 (c), it is swingable between an attitude and an upward attitude in which the book 14 is lifted up by hand and retracted upward to allow the books 14 to be taken in and out. When the book 14 actually jumps out forward, the blocking body 12 is slightly lifted by the jumping out book 14 and the fall prevention tool A rotates clockwise, as shown in FIGS. 3 and 4B. It becomes such a posture.

Further, since the blocking body 12 is urged downward due to its own weight due to the sitting relationship, even if the blocking body 12 is shaken by an earthquake at any time, the book 14 that pushes forward to the front side of the bookshelf 1 is pushed. You can take it and prevent it from falling off. On the other hand, as shown in FIG. 4C, by lifting the blocking body 12 from the loading / unloading area of the book 14, the book 14 can be easily placed in the upper position allowing the loading / unloading of the book 14. At this time, the central portion of the blocking body 12 in the longitudinal direction is projected in a step-like bent shape to form a finger hook portion 13. If the finger hook portion 13 is hooked with a finger, the blocking body 12 is lifted. Can be easily lifted. Since the finger-holding portion 13 is made up of a part of the blocking body 12, the manufacturing cost can be reduced as compared with the case where these are constituted by separate members. The finger hook 13 may be provided as a member different from the blocking body 12.

As described above, in the present embodiment, the blocking body 12 is biased by its own weight to the downward position positioned on the front side of the book 14, so that the book 14 can be reliably moved regardless of the vibration caused by the earthquake. You can prevent the fall. Moreover, since the rack height adjusting hole 5 is used, it is possible to prevent the books from falling off at low cost without making any design change to the conventional bookshelf. In addition, the book can be put in and taken out easily only by lifting the blocking body 12 by hand, which is convenient.

The connecting bodies 10 and 11 may or may not be in contact with the side plates 3 and 4. However, when the connecting bodies 10 and 11 are in contact with the side plates 3 and 4, the connecting bodies 10 and 11 are not in contact with each other. It is necessary that the friction generated on the hindrance does not hinder the displacement of the blocking body 12 due to the sitting relationship. On the other hand, if the connecting bodies 10 and 11 do not come into contact with the side plates 3 and 4, there is no possibility of disturbing the displacement of the blocking body 12.

Further, since the supporting bodies 8 and 9, the connecting bodies 10 and 11 and the blocking body 12 are made of one bar member formed in a bent shape, the manufacturing cost can be reduced. In addition, in the above-mentioned embodiment, the lengths of the coupling bodies 10 and 11 can be set appropriately. For example, in the above-described embodiment, since the connecting bodies 10 and 11 are set to be short, the blocking body 12 contacts the upper portion of the book 14 to prevent the blocking, but the invention is not limited to this. As shown in FIG. 3, the blocking body 12 may be in contact with the book 14 in the vicinity of the central portion in the height direction. Although it is possible to make the connecting bodies 10 and 11 considerably longer so that the blocking body 12 contacts below the central portion of the book 14 in the height direction, it is possible to contact above the center of gravity of the book 14 above. This is preferable from the viewpoint of preventing the books 14 from falling off.

FIG. 5 is a perspective view of a main part showing a usage state of the book drop prevention device according to the second embodiment of the present invention. Referring to FIG. 5, in the present embodiment, the book drop prevention device A The support 8 (9) of No. 1 was inserted into the rear hole 5b. In the lower position, which is the normal set state, the blocking body 12 is in contact with the front end 14a of the book 14 as shown in FIG. As shown in the figure, the blocking body 12 keeps in contact with the front end 14 of the book 14 and slightly protrudes to prevent the book 14 from falling off.

In this embodiment, the same operational effects as the embodiments of FIGS. 1 to 4 are achieved. Further, in the present embodiment, the lengths of the connecting bodies 10 and 11 are longer than those in the first embodiment, but the blocking body 12 is in contact with the front end 14a of the book 14 in the set state in which it is in the downward posture. Therefore, as a result of being in contact with the book 14 from the beginning of the shaking due to the earthquake, the book 14 is more reliably prevented from falling off.

It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various design changes within the scope of the present invention.

[0019]

[Effect of device]

 In the present invention, since the blocking body always descends toward the front side of the book due to the sitting relationship, the blocking body can surely prevent the book from falling off even if it receives vibration due to an earthquake at any time. In addition, the books can be taken out freely by simply lifting the block, which is convenient. Furthermore, since the shelf height adjusting hole originally provided in the bookcase is used, there is no need to change the design of the bookcase, and as a result, the manufacturing cost of the bookcase as a whole having a book drop prevention function can be kept low.

Further, it is preferable that the support body, the coupling body, and the blocking body are made of one bar member formed in a bent shape, because the manufacturing cost can be reduced. Further, if the finger hooking portion is formed by a part of the blocking body, the finger hooking portion can be used when changing the posture of the blocking portion to the avoidance posture, so that the operability is good. In addition, the manufacturing cost can be reduced as compared with the case where the finger hooking portion is configured by a separate member.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a bookcase including a book drop prevention device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a bookshelf showing a usage state of the book drop-out prevention tool.

FIG. 3 is a perspective view of a bookshelf showing a state in which a book falling prevention device receives a book that is about to jump forward.

FIG. 4 is a schematic cross-sectional view showing a usage state of the book drop-out prevention tool, (a) shows a normal set state, (b) shows a state when a book jumps out forward, (c). Shows the state when the book is taken in and out.

5 (a) and 5 (b) are partially cutaway perspective views of a bookshelf showing a usage state of the book drop prevention device according to the second embodiment of the present invention.

[Explanation of symbols]

 A Book drop-out prevention tool 1 Bookcase 3,4 Side plate 5 Shelf height adjusting hole 5a Front hole 5b Rear hole 6 Support pin 7 Shelf 8,9 Support body 10,11 Connected body 12 Blocker 13 Finger rest 14 Book

Claims (3)

[Scope of utility model registration request] 1. A pair of support bodies, which are rotatably fitted in mutually facing shelf height adjusting holes of a pair of side plates of a bookcase, and one ends of which are connected to the respective support bodies and which extend substantially along the respective side plates. A pair of connecting bodies, and a downward posture that is installed between the other ends of these connecting bodies and that prevents the books from falling off on the front side of the books placed on the shelves as the support rotates. It is provided with a long obstruction body whose posture is changed to an upward posture that allows the book to be taken out, and the obstruction body is biased to the downward posture by its own weight due to its sitting relationship. A device to prevent books from falling out of a bookshelf. 2. The book drop-off preventing device for a bookcase according to claim 1, wherein the support body, the connecting body and the blocking body are made of one bar member formed in a bent shape. 3. The book drop-off preventing tool for a bookcase according to claim 2, wherein a part of the blocking body is bent to form a finger hook portion.