JP2013223802A - Fitting for fixing shelf board for bookshelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive fitting for fixing a shelf board for a bookshelf capable of making very easily earthquake countermeasure by using an existing book shelf and only by using instead of an existing fitting for fixing.SOLUTION: A fitting 1 for fxing has a plate-like body 10 arranged in a surface extending along in a vertical direction and in a fore and aft direction, and a one or more hook parts 12 arranged in an outer peripheral part of the plate-like body 10 so as to be able to engage with engaging holes arranged in a support post part, a shelf board engaging part 13 arranged in a lower end part of the plate-like body 10 and for engaging with the shelf board and supporting the shelf board. An upper surface part of the shelf board engaging with the shelf board engaging part 13 is constituted so as to be an inclined surface raised as going forward. The shelf board engaging part 13 has a lower surface part 130 bent generally orthogonally from the lower end of the plate-like body 10 and arranged in the lower side of the shelf board, it is preferable that the lower surface part 130 is inclinedly arranged so as to be raised as going foreward.

Description

  The present invention relates to a metal fitting for fixing a shelf for bookshelf on which a book is placed, and more particularly, to a member that can realize a structure capable of suppressing the fall of a book due to vibration when an earthquake occurs.

  For example, in a library, a school library, etc., many bookshelves are used to store books in a removable manner. The bookshelf includes a frame portion composed of a bottom portion, a plurality of column portions standing from the bottom portion, and a plurality of shelf boards arranged between the column portions inside the frame portion. There are various types of structures of the frame part, such as a structure in which one shelf board is supported by four support parts, a structure in which a shelf board is supported by two support parts.

In any structure of the frame portion, in order to hold the shelf plate inside the frame portion, a structure in which both ends of the shelf plate are fixed to the support column via fixing brackets is often employed. Fixing brackets for the shelf for bookshelf are a pair of left and right, plate-like main body part, hook part that can be engaged with the engagement hole provided in the column part, and shelf board engagement that engages with the shelf board Part.
And the shelf board is conventionally arrange | positioned so that the upper surface which receives a book may become horizontal.

By the way, in recent years, improvement of safety measures in public places in the event of an earthquake has been sought, and methods for preventing accidents due to the fall of books placed on bookshelves are being studied in libraries and the like. In order to prevent accidents caused by the fall of books during an earthquake, it has been attempted to install an earthquake countermeasure device on the bookshelf.
Examples of conventional earthquake countermeasure devices for book shelves include those described in the following patent documents.

JP 2000-21148 A Japanese Patent Application Laid-Open No. 11-196962

The devices described in these patent documents are very large-scale devices in which a guide member is arranged in front of a book when an earthquake occurs. Therefore, apart from its function, it becomes very expensive. Therefore, in a facility such as a library having a large number of bookshelves, the cost of earthquake countermeasures is high, and it is a problem that measures cannot be easily implemented.
The present invention has been made in view of such problems, and it is possible to fix an inexpensive book shelf that can be used for earthquake countermeasures by simply using an existing book rack and using it instead of an existing fixing bracket. It is intended to provide metal fittings.

The present invention includes a frame portion including a bottom portion, and a plurality of column portions standing from the bottom portion, and a plurality of shelf boards arranged between the column portions inside the frame portion. A pair of left and right fixing brackets for fixing both ends of the shelf board to the support column in the bookshelf,
The direction in which the book is put in and out facing the frame part is the front-rear direction, the direction in which the book is put in is the rear, the direction in which the book is put out is the front, the horizontal direction perpendicular to the front-rear direction is the width direction, and the front-rear direction If the vertical direction perpendicular to the vertical direction,
The fixing bracket is a plate-like main body portion disposed on the surface along the vertical direction and the front-rear direction;
One or more hooks provided in the plate-like main body so as to be engageable with engagement holes provided in the support;
Provided at the lower end of the plate-shaped main body, and has a shelf engaging portion for engaging the shelf and supporting the shelf,
The shelf bracket engaging portion is configured such that the upper surface portion of the shelf plate engaged with the shelf plate is an inclined surface that rises toward the front, and the shelf bracket fixing bracket is characterized in that (Claim 1).

The fixing bracket for the shelf for bookshelf includes the plate-like main body portion and the hook portion, and also has the special shelf plate engaging portion.
That is, the upper surface of the engaged shelf is not horizontal, but the upper surface of the engaged shelf is an inclined surface that rises toward the front. It is configured.

  By realizing such an arrangement of the shelf boards, the books placed on the shelf boards are inclined in a direction in which the front side becomes higher along the upper surface portion of the shelf boards. As a result, in the event of an earthquake, force is applied to the books on the shelf in the direction of moving from the front of the bookshelf to the back of the bookshelf, preventing the books from falling from the front of the bookshelf. Is done.

On the other hand, when the conventional fixing bracket is used, when an earthquake occurs, the books on the shelf board which is a horizontal surface may easily fall from the front of the bookshelf.
As described above, when the solid metal fitting of the present invention is used, it is possible to significantly suppress the fall of the book as compared with the conventional case.

  In addition, according to the present invention, the existing structure is used as it is for the frame part and the shelf board, which are the main body parts of the bookshelf, and only the fixing bracket of the present invention is replaced with the conventional fixing bracket. Excellent effects can be obtained. Therefore, earthquake countermeasures can be taken very easily and inexpensively, and prompt responses can be made in many libraries and other public facilities.

FIG. 3 is an explanatory diagram illustrating a configuration of a bookshelf in the first embodiment. The explanatory view which looked at the metal fitting for fixation in Example 1 from the width direction. FIG. 3 is a cross-sectional view taken along line AA in FIG. The explanatory view which looked at the metal fitting for fixation in Example 1 from the upper part. The perspective view which shows the shelf board in Example 1. FIG. FIG. 6 is a cross-sectional view taken along the line BB in FIG. Explanatory drawing which shows the state which made the shelf board engage with the metal fitting for fixation in Example 1. FIG. The explanatory view which looked at the metal fitting for fixation in Example 2 from the width direction. The explanatory view which looked at the metal fitting for fixation in Example 2 from the upper part.

  In the bracket for fixing the shelf for bookshelf, the shelf engaging portion has a lower surface portion that is bent at a substantially right angle from a lower end portion of the plate-like main body portion and is arranged below the shelf plate, and the lower surface It is preferable that the portion has a structure that is inclined so as to rise as it goes forward (Claim 2). Thereby, the inclination state of a shelf board can be easily implement | achieved only by mounting the width direction edge part of a shelf board on a lower surface part.

  Moreover, it is preferable that the said shelf board engaging part has 1 or several standing surface part bent at the substantially right angle upward from the width direction front-end | tip of the said lower surface part. In this case, the shelf board can be held more stably by disposing the rising surface part inside the width direction end of the shelf board.

In the fixing bracket for the shelf board for bookshelf, at the front end of the standing surface portion located on the most front side in the shelf board engaging part, the inside of the front end part of the shelf board having a substantially U-shaped cross section is formed. It is preferable that a forward projecting portion projecting forward is provided so as to be inserted (Claim 4).
A shelf for a bookcase is usually manufactured by bending a metal plate such as a steel plate, and its front end and rear end are generally substantially inwardly in consideration of increased rigidity and safety. It is bent into a letter shape. When holding such a shelf board, by using the fixing mold having the front projecting portion, the shelf board to be held is a front end portion of the shelf board having a substantially U-shaped cross section. The front projecting portion is inserted inside. Therefore, it becomes a very stable fixed state as compared with the conventional simple structure. Thereby, when an earthquake occurs, it is prevented that the shelf moves up and down and flutters to facilitate the fall of the books. Therefore, when the front protrusion is provided, it is possible to further enhance the effect of preventing the book from falling when an earthquake occurs.

  The fixing metal fitting can be manufactured by bending a metal plate such as a steel plate. Therefore, it is easy to manufacture and can be mass-produced at low cost. For this reason, a great contribution is expected in the present situation where earthquake countermeasures are urgently needed.

  In the fixing bracket, not only the lower surface portion of the shelf engaging portion is inclined, but also the upper end position of the standing surface portion of the shelf engaging portion is arranged substantially parallel to the lower surface portion. It is preferable that the inclined surface rises toward the front (Claim 5). In this case, since the upper end position of the upright surface portion facing the back surface of the shelf plate is substantially parallel to the back surface of the shelf plate, the configuration that always supports the back surface of the shelf plate or the shelf plate tends to be deformed. In this case, it is possible to easily realize a structure that stably supports.

  In addition, the inclination angle of the upper end position of the lower surface portion and the standing surface portion in the shelf engaging portion is preferably in the range of 3 ° to 7 °, and most preferably in the range of 5 ° ± 1 °. If the tilt angle is too small, the above-described effect of preventing the book drop is reduced. On the other hand, if the tilt angle is too large, the display state of the book during normal use may become too oblique and the convenience may be reduced.

Example 1
A fixing bracket for a shelf for bookshelf according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the fixing bracket 1 of this example includes a frame portion 80 including a bottom portion 81 and a plurality of column portions 82 erected from the bottom portion 81, and between the column portions 82 inside the frame portion 80. A pair of right and left fixing brackets for fixing both ends of the shelf board 7 to the support column 82 in the bookshelf 8 provided with a plurality of shelf boards 7 arranged in a span.

  In order to make the explanation of the structure of the fixing bracket 1 easy to understand, first, the direction in which the book 9 (FIG. 7) is taken in and out facing the frame portion 80 is defined as the front-rear direction, and the direction in which the book 9 is inserted is rearward (see FIG. 1 in the direction of arrow a2), the direction in which the book 9 is drawn out is the front (arrow a1 direction in FIG. 1), the horizontal direction orthogonal to the front-rear direction is the width direction (arrow b direction in FIG. 1), and the front-rear direction The vertical direction perpendicular to the vertical direction is defined as the vertical direction (the direction of arrow c in FIG. 1).

  If it demonstrates based on such a direction, as shown in FIGS. 2-4, the metal fitting 1 for fixing has the plate-shaped main-body part 10 distribute | arranged to the surface along the up-down direction c and the front-back direction a1, a2. Further, the fixing bracket 1 includes a plurality of hook portions 12 provided on the outer peripheral portion of the plate-like main body portion 10 so as to be engageable with an engagement hole 820 provided in the support column portion 82, and the plate-like main body portion 10. And a shelf engaging portion 13 for supporting the shelf 7 by engaging with the shelf 7.

The shelf engaging portion 13 is bent at a substantially right angle from the lower end portion of the plate-like main body portion 10 and is bent at a substantially right angle upward from the tip of the bottom surface portion 130 and a lower surface portion 130 disposed below the shelf plate 7. Two standing surface portions 131 and 132 are provided.
The lower surface portion 130 is disposed so as to rise as it goes forward, and the upper surface portion 75 of the shelf 7 that is engaged with the shelf engagement portion 13 becomes an inclined surface that rises as it goes forward. It is configured as follows.

Further details will be described below.
As shown in FIG. 1, the bookshelf 8 shown in this example is a type of bookshelf in which books can be taken in and out from both the front and back sides such as two sets of bookshelves combined on the back, and two sets of shelf boards 7 can be arranged on both sides. It is configured as follows. The frame portion 80 of the bookshelf 8 has a plurality of support columns 82 arranged in a line in the width direction between the back surfaces of the two sets of shelf plates 7, and one shelf plate is formed by two adjacent support columns 82. 7 can be supported. A plurality of engagement holes 820 for engaging the hook portions 12 of the fixing bracket 1 are provided on both front and back sides of each column portion 82 in order to hold the fixing bracket 1 of the shelf plate 7 in a cantilever shape.

  As shown in FIGS. 5 and 6, the shelf board 7 includes a shelf body part 70 obtained by bending a steel plate and a reinforcing rib part 79 joined to the back surface thereof. The shelf main body 70 is bent in a state where the rear end upper portion 72 is erected upward, the front end 71 is bent inward so as to have a substantially U-shaped cross section, and the rear end 72 is also formed. Similarly, it is bent inward. Further, the side end portions 74 at both ends in the width direction are folded downward by the same thickness as the front end portion 71 and the rear end portion 73. The reinforcing rib portion 79 is welded to the shelf main body portion 70 by bending a steel plate into a substantially U shape. A shelf plate of a flat type on which the entire rear end upper portion 72 is not provided can also be used.

  The fixing metal fitting 1 to be engaged with the support column portion 82 is formed by bending a steel plate, and is provided with the plate-like main body portion 10, the hook portion 12, and the shelf plate engaging portion 13 described above. As shown in FIG. 3, the shelf engaging portion 13 has a substantially U-shaped cross section due to the plate-like main body portion 10, the lower surface portion 130, and the standing surface portion 131 (132), and the side end of the shelf plate 7 is inside thereof. The portion 74 can be inserted. The two upright surface portions 131 and 132 are formed with a space therebetween so that the reinforcing rib portion 79 of the shelf plate 7 described above can be disposed.

Further, as shown in FIG. 2, of the two standing surface portions 131 and 132 raised from the lower surface portion 130 of the shelf engaging portion 13, the front end of the standing surface portion 131 located on the most front side protrudes forward. A forward projecting portion 135 is provided. The front projecting portion 135 is provided in a shape that can be inserted into the front end portion 71 formed in the substantially U-shaped cross section of the shelf plate 7 described above.
Further, the upper end position of the upright surface portion 131 of the shelf engaging portion 13 of the fixing metal fitting 1 is arranged substantially parallel to the lower surface portion 130 and is configured to be an inclined surface that rises toward the front. The inclination angle α with respect to the horizontal direction was set to 6 °.

  By engaging the hook portion 12 of the fixing bracket 1 having such a configuration with the engagement hole of the column portion 82 and engaging the side end portion 74 of the shelf plate 7 with the shelf plate engaging portion 13, FIG. As shown in FIG. 3, the shelf board 7 can be fixed in a state where it becomes an inclined surface that rises as the upper surface portion 75 goes forward. In this state, the front protrusion 135 of the fixing bracket 1 is inserted into the front end 71 of the shelf board 7.

  As shown in the figure, the book 9 placed on the oblique shelf board 7 is in an inclined state so that the front side becomes higher. As a result, when an earthquake occurs, force is applied to the book 9 on the shelf 7 in the direction moving from the front of the bookshelf 8 to the back direction (a2). The book 9 is prevented from falling.

  Further, the shelf plate 7 held by the fixing mold 1 is in a state in which the front projecting portion 135 is inserted into the front end portion 71 having a substantially U-shaped cross section. Therefore, it becomes a very stable fixed state as compared with the conventional simple structure. Thereby, when an earthquake occurs, it is prevented that the shelf board 7 moves so as to promote that the shelf board 7 moves up and down and the book 9 falls. Therefore, the effect of preventing the book 9 from falling when an earthquake occurs can be further enhanced.

  Further, not only the lower surface portion 130 of the shelf engaging portion 13 of the fixing metal fitting 1 is inclined, but the upper end positions of the standing surface portions 131 and 132 are arranged substantially parallel to the lower surface portion 130 and go forward. It is a rising slope. Thereby, as shown in FIG. 7, the upper end positions of the standing surface portions 131 and 132 facing the back surface of the shelf board 7 are substantially parallel to the back surface of the shelf board, so that the back surface of the shelf board 7 is always supported, or It is possible to easily realize a configuration that stably supports the shelf plate when it is about to deform.

  In addition, the above-mentioned fixing bracket 1 is excellent in that the existing structure is used as it is for the frame portion 80 and the shelf board 7 which are the main body parts of the conventional book shelves, and the above-described excellent fixing bracket 1 is replaced with the conventional fixing bracket. An effect is obtained. Therefore, earthquake countermeasures can be taken very easily and inexpensively, and prompt responses can be made in many libraries and other public facilities.

(Example 2)
As shown in FIGS. 8 and 9, the fixing bracket 102 of this example is an example in which the shapes of the hook portion and the shelf engaging portion are changed from those of the first embodiment.
Unlike the configuration in which the fixing bracket 102 of this example is supported by the support column in a cantilever manner in the first embodiment, the fixing bracket 102 is respectively engaged with the engagement holes provided on the side surfaces of the two front and rear support columns (not shown). Two hook portions 125 to be joined are provided on the front and back sides of the upper end of the plate-like main body portion 10. Further, the upright surface portion 133 of the shelf engaging portion 13 of the fixing metal fitting 102 is provided as a single portion covering almost the entire length of the lower surface portion 130 so as to correspond to a shelf plate (not shown) having no reinforcing rib portion. . A forward projecting portion 135 is provided at the front end of the standing surface portion 133.

The fixing metal fitting 102 can be used by replacing the conventional fixing metal fitting of the type that is engaged with the two front and rear support columns.
Moreover, the standing surface part 133 can also be changed into the structure divided | segmented into two places so that the reinforcement rib part like Example 1 can be arrange | positioned.
The same effect as that of the first embodiment can be obtained by the fixing metal fitting 102 of this example.

DESCRIPTION OF SYMBOLS 1 Fixing bracket of a shelf for bookshelves 10 Plate-shaped main-body part 12 Hook part 13 Shelf board engaging part 130 Lower surface part 131,132 Standing surface part 135 Front protrusion part 7 Shelf board 8 Bookcase 80 Frame part 81 Bottom part 82 Column part 820 Engagement Hole

Claims (5)

In a bookshelf comprising a bottom part, a frame part provided with a plurality of column parts erected from the bottom part, and a plurality of shelf boards arranged between the column parts inside the frame part, A pair of left and right fixing brackets for fixing both ends of the shelf board to the support column,
The direction in which the book is put in and out facing the frame part is the front-rear direction, the direction in which the book is put in is the rear, the direction in which the book is put out is the front, the horizontal direction perpendicular to the front-rear direction is the width direction, and the front-rear direction If the vertical direction perpendicular to the vertical direction,
The fixing bracket is a plate-like main body portion disposed on the surface along the vertical direction and the front-rear direction;
One or more hooks provided in the plate-like main body so as to be engageable with engagement holes provided in the support;
Provided at the lower end of the plate-shaped main body, and has a shelf engaging portion for engaging the shelf and supporting the shelf,
The shelf bracket engaging portion is configured such that the upper surface portion of the shelf plate engaged with the shelf plate is an inclined surface that rises toward the front, and the shelf bracket fixing bracket is characterized in that .   The shelf bracket fixing bracket according to claim 1, wherein the shelf engaging portion includes a lower surface portion that is bent at a substantially right angle from a lower end portion of the plate-like main body portion and is arranged below the shelf plate. And the lower surface portion is arranged to be inclined so as to rise toward the front.   3. The shelf bracket fixing bracket according to claim 2, wherein the shelf engaging portion has one or a plurality of upstanding surface portions bent substantially perpendicularly upward from the width direction front end of the lower surface portion. A fixture for fixing a shelf for a bookcase.   In the metal fitting for fixing a shelf for a bookshelf according to claim 3, the tip of the upright surface portion located on the foremost side in the shelf engaging portion of the shelf is formed in a substantially U-shaped cross section. A bracket for fixing a shelf board for bookshelf, wherein a front projecting portion projecting forward is provided so as to be inserted into the front end portion.   5. The bracket for fixing a shelf for a bookshelf according to claim 3, wherein an upper end position of the standing surface portion in the shelf plate engaging portion is arranged substantially parallel to the lower surface portion and rises toward the front. A bracket for fixing a shelf for a bookshelf, characterized by being configured to be a surface.

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