JPH0540751Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a top board joining device suitably used for bookshelves and the like.

[Prior Art] In a prefabricated bookshelf or the like in which a desired unit width can be appropriately configured by joining component parts in the left-right direction, the top plate also has a length dimension of a predetermined unit width, for example. is set to . When configuring a bookshelf with multiple unit widths, adjacent top plates are joined together on supports located at the boundaries.

By the way, when it comes to such bookshelves, there are two types of bookshelves: one is a so-called single-type type, which is used with shelf boards arranged on one side only, and the other is a so-called double-type type, which can be used from both sides by sandwiching the support. be. Conventionally, single-type models were constructed by attaching a metal fitting with pipes joined in an L-shape to the upper end of the support, and fitting the horizontal arm of the metal fitting into a groove provided on the joint end surface of the top plate. It is sandwiched between the top plates, and the two top plates are tightly connected to each other by bolts passed through the receiving metal fittings. On the other hand, for the double-type type, connect the pipe to L.
Attach the metal fitting connected in the shape of a letter to the upper end of the column,
The horizontal arms of the bracket fit into the grooves provided on the joint surfaces of the top plates, and the bracket is held between the two top plates. The plates are tightly connected together.

[Problems to be Solved by the Invention] However, with such a structure, completely different metal fittings are required for the above-mentioned single-type type and double-type type, and the number of types of parts increases. Therefore, not only is it time-consuming to manufacture, but if the user wants to change the specifications between double-type and single-type, there is a problem in that a completely different bracket must be newly purchased.

The present invention aims to eliminate such problems.

[Means for Solving the Problems] In order to achieve the above objects, the present invention employs the following configuration.

That is, the top plate joining device according to the present invention includes an L-shaped receiving fitting in which arms each having a through hole protrude from the upper end of the leg in an orthogonal direction, and the upper end of the support is provided with an L-shaped receiving fitting formed of an arm piece having a through hole projecting from the upper end of the leg piece in a direction perpendicular to each other. Insert the leg pieces of a pair of brackets with different angles, position the arm pieces of both brackets between the joining ends of the left and right top plates, and insert the two top plates into the through holes of both brackets. The device is characterized in that the connection is tightened using a tightening tool inserted therethrough.

In order to particularly firmly integrate the overlapping pairs of receiving metal fittings, each receiving metal fitting is provided with a protrusion and an engagement hole, respectively, and when the pair of receiving metal fittings are overlapped and attached to the pillar, It is preferable that the protrusion and the engagement hole are configured so that they can engage with each other.

In addition, if you want to be able to attach the bracket to the post more smoothly and reliably,
It is desirable that projections be provided intermittently on both edges of the leg so that when the leg is inserted into the support, the projections come into pressure contact with the inner surface of the support.

If you want to use the hook hole located at the upper end of the support even when the receiving bracket is attached, shape the edges of the overlapping leg pieces so that a space can be formed between the edges. It is better.

[Function] With this configuration, the arms of the superposed pair of brackets are held between the joint surfaces of adjacent top plates, so they do not tilt in the thickness direction or separate from each other. Never. Therefore, by inserting the legs of the overlapping pair of receiving fittings between the front and rear walls of the column, both receiving fittings will perform the same function as an integral receiving fitting.

If it is applied to a single type with shelves arranged on only one side of the support, attach a single bracket to each support, and attach the arm of the support to the adjacent It may be held between the joint surfaces of the top plate.

[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 7.

The bookshelf shown in FIGS. 1 to 5 is constructed by mounting a plurality of top plates 2 on the ceiling of a duplex bookshelf main body 1 via metal fittings 3.

The bookshelf main body 1 has a plurality of columns 12 having legs 11 at the lower ends, which are erected at predetermined intervals in the left-right direction, and each of the columns 12 is connected to the upper and lower horizontal members 13,
They are connected by 14. The support column 12 is shaped like a rectangular pipe with an open upper end, and hook holes 12a are bored at a predetermined pitch on both the front and rear surfaces of the support column 12. Then, the shelf brackets 1 are inserted into the hook holes 12a on one side of the support 12 and the hook holes 12a on the other side, respectively.
5 are hung as appropriate, and shelf boards 16 are constructed between these shelf brackets 15, respectively. Further, side plates 17 are attached to both left and right ends.

The top plate 12 has, for example, a length dimension twice as long as the arrangement pitch of the support columns 12, and a width dimension corresponding to the total width of the shelf board 15 on one side and the shelf board 15 on the other side. There is. A groove 21 is formed in the center of the lower surface of each top plate 2, into which the upper end of the support column 12 and the upper edge of the upper horizontal member 13 fit. Further, a rectangular counterbore 22 is formed on the left and right joint end surfaces 2a of each top plate 2, and the receiver 3 is provided with a rectangular counterbore 22.
We are trying to accommodate the following.

The receiving metal fitting 3 is L-shaped with an arm piece 33 having a through hole 32 projecting from the upper end of a leg piece 31 in the orthogonal direction, and is made integrally from a steel plate, for example. Then, the arm pieces 31 of a pair of receiving metal fittings 3 having mutually different directions are inserted into the upper end of the support 12 in an overlapping state, and the arm pieces 33 of both of the receiving metal fittings 3 are inserted into the joint end surface of the left and right top plates 2. 2a, and the two top plates 2 are tightly connected to each other by bolts 34, which are fasteners, inserted through the through holes 32 of the two receiving metal fittings 3. Specifically, the leg piece 31 of the bracket 3
are set to dimensions that allow them to closely contact the front and rear inner wall surfaces 12b of the support column 12, and the arm pieces 33 are
The shape is such that it can fit into one half of the counterbore 22 of the top plate 2. A bolt insertion hole 23 that is continuous with the through hole 32 of the receiving metal fitting 3 is opened in the joint end surface 2a of each top plate 2. Further, a cavity 24 that opens upward is provided in the vicinity of the joining end surface of each top plate 2, and the inner end of the bolt insertion hole 23 is opened in this cavity 24. Then, both ends of the bolt 34 inserted through the through hole 32 of each receiving metal fitting 3 are made to protrude into each corresponding cavity 24 through the bolt insertion hole 23 of the left and right top plate 2, and a nut 35 is screwed into the protruding end. Both top plates 2 are joined by tightening them. Note that the joining end surfaces 2a of the top plate 2 at both left and right ends are brought into contact with the inner surface of the upper end of the side plate 17, and fixed using bolts 36 and nuts 37.

With such a configuration, the overlapping pair of receiving metal fittings 3 can be attached to the proximal end portion 33 of the arm piece 33.
Since a is sandwiched between the joint end surfaces 2a of adjacent top plates 2, it does not tilt in the thickness direction or separate from each other. Therefore, the superposed pair of receiving metal fittings 3
By inserting the leg pieces 31 between the front and rear inner wall surfaces 12b of the support column 12, both of the receiving fittings 3 will perform the same function as an integrated T-shaped receiving fitting.

When applied to a single-type structure in which the shelf board 16 is arranged only on one side of the support column 12,
A single bracket 3 is attached to each support 12,
The arm piece 33 of the receiving metal fitting 3 may be held between the joint end surfaces 2a of the adjacent top plates 2.

FIG. 6 shows a specific example of a case where the top plate 102 is joined and placed on such a single bookshelf body 101, and the parts that are the same as or correspond to those shown in FIGS. 1 to 5 are shown. are given the same reference numerals. In this case, a substantially half-width top plate 102 having a stepped portion 121 corresponding to the groove 21 on the rear edge of the lower surface is used. A counterbore 122 having a depth half the depth of the counterbore 22 of the top plate 2 is formed on the joint end surface 102a of each of the top plates 102. An arm piece 33 of one receiving metal fitting 3 is fitted. Then, as shown in FIG. 7, the top plates 102 are tightly joined together using bolts 34 and nuts 35 similar to those described above.

Therefore, if this is done, the receiving fittings 2 and the fastening fittings 34 that join the top plates 2 of the double bookshelf together
In addition, it becomes possible to make the receiving metal fitting 2 and the fastening tool 34 that join the top plates 102 of the single bookshelf together into common parts.

Note that the configuration of the receiving metal fitting is not limited to the one described above, and may be, for example, as shown in FIG. 8. That is, the receiving metal fitting 203 shown in FIG. 8 has a plurality of protrusions 231a on both edges of its leg piece 231, and the protrusions 231a are press-fitted into the inside of a column (not shown). This bracket 203 is attached to the arm piece 233.
The proximal end portion 233a has an engagement hole 233b and a protrusion 233c formed by half punching or the like. Therefore, in the case of this receiving metal fitting 203, when the receiving metal fittings 203 are overlapped in different directions, the protrusion 233c of each receiving metal fitting 203 is inserted into the engagement hole 233 of the other side.
b, respectively, so that they can be positioned relative to each other. Therefore, according to such a configuration, it becomes possible to more firmly integrate the pair of receiving metal fittings 203 with each other.

Further, the shape of the leg of the receiving metal fitting is not limited to that of the embodiment described above, and may be, for example, as shown in FIGS. 9 and 10.
That is, the receiving metal fitting 303 shown in FIG.
When attached to the edge 33 of the leg pieces 331
A space 300 having a triangular planar cross section can be formed between 1a. Therefore, with such a structure, these leg pieces 331 will not block the hook hole 12a of the support column 12. Therefore,
The hook hole 12a at the upper end of the support column 12 can also be used without any problems. The bracket 403 shown in FIG.
a is formed into an L-shaped cross section, and when the pair of receiving metal fittings 403 are overlapped and attached to the support column 12,
A space 400 having a rectangular planar cross section can be formed between the edges 431a of the leg pieces 431. Therefore, in this case as well, the hook hole 12a at the upper end portion of the support column 12 can be used without any problems.

[Effects of the invention] Since the present invention has the above-described configuration, it can be used both when joining a wide top plate extending on both sides of a support column and when joining a top plate extending only on one side of a support column. However, common metal fittings and fasteners can be used, reducing manufacturing man-hours and simplifying parts management, as well as adding or changing parts when the user changes the joining form. Therefore, it is possible to provide a top plate joining device that can reduce the number of times as much as possible.

[Brief explanation of the drawing]

Figures 1 to 7 show one embodiment of the present invention, with Figure 1 being an exploded perspective view showing a double bookshelf, Figure 2 being an exploded perspective view showing the joint portion of the top plate of the bookshelf, 3
The figure is a plan view showing the joint part of the top plate of the bookshelf, Fig. 4 is a side sectional view showing the same part, Fig. 5 is a partially cutaway front view showing the same part, and Fig. 6 is a single bookshelf. The exploded perspective view and FIG. 7 are plan views showing the joint portion of the top plate of the bookshelf. FIG. 8 is a perspective view showing another embodiment of the present invention. FIGS. 9 and 10 are plan sectional views of leg portions showing still other embodiments of the present invention, respectively. 2...Top plate, 2a...Joining end surface, 3...Bracket fitting, 31...Leg piece, 32...Through hole, 33...Arm piece, 34...Tightening tool (bolt), 102...Top plate ,
102a...Joining end surface, 203...Bracket fitting, 23
1...Leg piece, 231a...Protrusion, 233...Arm piece, 233b...Engagement hole, 233c...Protrusion, 3
00... Space, 303... Bracket, 331... Leg piece, 331a... Edge, 400... Space, 403
...Bracket, 431...Leg piece, 431a...Edge.

Claims (1)

[Claims for Utility Model Registration] (1) An L-shaped receiving bracket consisting of an arm piece with a through hole protruding in an orthogonal direction from the upper end of the leg piece, and an L-shaped receiving fitting formed of an arm piece having a through hole protruding from the upper end of the support column in mutually different directions. Insert the leg pieces of the pair of support metal fittings that are attached to each other, position the arm pieces of both of the metal support fittings between the joint ends of the left and right top plates, and insert the two top plates into the through holes of both of the support metal fittings. A top board joining device characterized in that the connection is tightened using a fastening tool. (2) Each bracket is provided with a protrusion and an engagement hole, so that when a pair of brackets are overlapped and attached to a post, the protrusions and the engagement hole can engage with each other. Claim 1 characterized in that
The mentioned top plate joining device. (3) Protrusions are provided intermittently on both edges of the leg pieces,
3. The top plate joining device according to claim 1, wherein when the leg piece is inserted into the support, the protrusion thereof comes into pressure contact with the inner surface of the support. (4) Claim 1 or 2, characterized in that a space can be formed between the edges of the overlapping leg pieces.
The mentioned top plate joining device.