JPS6242894Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a drawer box installed in a storage cabinet or the like.

[Conventional technology]

As shown in FIG. 10, it includes a bottom plate 110, metal left and right side plates 106, a synthetic resin front decorative plate 107 and a metal rear side plate 108 fixed to the bottom plate and the left and right side plates. Side plate 106
... and the bottom plate 110 are pivotally connected in a foldable manner by fitting the bent parts 110a..., 106a... provided at the respective ends, and the front decorative plate made of synthetic resin 107 and the rear side plate made of metal are connected. 108
A prefabricated drawer box in which the drawer box is fixed to the left and right side plates 106 with screws is already known.

In addition, although it is not a drawer box, the bottom plate is configured to be foldable inward around an axis in the front and back direction at the center, and the left and right side plates are configured to be foldable around an axis parallel to the axis parallel to the bottom plate. The structure of the resin container is known from Japanese Utility Model Application Publication No. 53-83326.

[Problem that the invention attempts to solve]

When combining the former drawer box with the latter bottom plate structure, it is important to connect the front end of the bottom plate to the lower end of the synthetic resin front decorative panel, and to connect the rear end of the bottom plate to the lower end of the rear side plate to improve strength. , and also to ensure smooth and reliable slide operation of the drawer box.
Although this is desirable, since the central portion of the bottom plate tends to bend upward or downward, it is expected that the work of connecting the bottom plate to the synthetic resin front decorative plate and the metallic rear side plate will be quite troublesome.

The present invention was created with the above considerations in mind, and its purpose is to create a drawer box that can be folded into a small size, yet can be assembled extremely easily and in a strong state, and is easy to manufacture. It's about providing structure.

[Means for solving problems]

The technical measures taken by the present invention to achieve the above objectives are as follows. That is, the structure of the drawer box of the present invention includes bottom plates that are foldably connected to each other around an axis in the front-rear direction, and pivots that are pivotally connected to these bottom plates so that they can be folded around an axis that is parallel to the axis. metal left and right side plates, a synthetic resin front decorative plate and a metal rear side plate fixed to the bottom plate and the left and right side plates, and on both front and rear edges or upper edges of each of the left and right side plates, A flange protruding inwardly is provided, and when the bottom plate and the left and right side plates are folded, the bottom plate connected to each other is housed in the space of the flange protruding inwardly of the left and right side plates, and the synthetic resin A rearward-opening groove is formed at the lower end of the back surface of the front decorative panel, and the front end of the expanded bottom plate is inserted into the groove, and the lower end of the main body of the rear side plate is bent forward. A vertical horizontal flange and a rising plate portion bent upward from the front end thereof are bent and formed, and a cut-and-raised projection protruding forward is provided in the vicinity of the lower end of the main body portion,
A flange portion bent downward and a tongue piece bent forward from the lower end are formed at the rear end of the main body portion of the bottom plate, and the flange portion is provided with a through hole at a position corresponding to the cut and raised protrusion. The flange portion and the tongue piece of the bottom plate in the expanded state are inserted into the upwardly opening groove formed by the main body portion, the horizontal flange, and the rising plate portion of the rear side plate, and the tongue piece is inserted into the through hole. It is characterized in that the cut-and-raised protrusion is inserted therein.

[Effect]

According to the above configuration, when the bottom plate and the left and right side plates are disconnected from the synthetic resin front decorative plate and the metal rear side plate, the bottom plate is folded in half at the center, and the It is housed within the space inside the flange and can be folded into a smaller size.

When assembling the drawer box, fit the front end of the expanded bottom plate into the groove of the rear opening formed at the lower end of the back of the front decorative board. The flange portion bent downward from the end and the tongue piece at its tip are fitted into the groove of the upper opening formed by the main body portion of the rear plate, the horizontal flange, and the rising plate portion. In this case, when the flange portion and tongue piece of the bottom plate are fitted into the groove of the rear plate, the lower surface of the tongue piece of the bottom plate is supported by the horizontal flange of the rear plate, and the front end of the tongue piece of the bottom plate and the rear The contact with the rising plate portion of the side plate prevents the bottom plate from moving forward with respect to the rear side plate, and the cut and raised protrusion near the lower end of the main body portion of the rear side plate engages in the through hole of the flange portion of the bottom plate. As a result, upward movement of the bottom plate is prevented.

Therefore, the bottom plate is temporarily fixed in an expanded state by the rear side plate, and in this temporarily fixed state, the front end of the bottom plate can be inserted into the groove of the front decorative board, making assembly easy.

In addition, in the assembled state, the front end of the bottom plate fits into the groove opened at the rear of the front decorative board, and at the rear end of the bottom plate, the flange and tongue piece of the bottom plate meet the main body of the back side plate. Since the bottom plate fits into the groove of the upper opening formed by the horizontal flange and the rising plate part, and the cut and raised protrusion engages with the through hole, there is no risk of the bottom plate bending upward or downward. .

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows a storage cabinet in which four drawer boxes are suspended and can be moved in and out. In the figure, reference numerals 1 and 1 denote frames made by bending pipes into a U-shape, and are bolted to a vertically intermediate partition plate 2 and an upper plate 3 for placing articles. Although not shown in the drawings, each of the partition plate 2 and the upper plate 3 is provided with locking rails extending in the direction along the upper frame 1a on the lower surface thereof, on both left and right sides and in the center.

4... is a drawer box that can be put in and taken out along the locking rail, and has bottom plates 10, 10 connected to each other so as to be foldable around an axis in the front and back direction, and a drawer box parallel to the axis with respect to the bottom plates 10, 10. The left and right side plates 6, 6 are pivotally connected to each other so that they can be folded freely around an axis.
It is composed of a front decorative plate 7 and a rear side plate 8 which are fixed to the bottom plates 10, 10 and the left and right side plates 6, 6 by appropriate means.

The front decorative panel 7 is made of synthetic resin and has a handle 9 in the center of its surface. The bottom plates 10, 10, the left and right side plates 6, 6, and the rear side plate 8 are each made of color-painted thin steel plates. The bottom plates 10, 10 are divided into left and right halves at the center, and a plurality of hinges 11 (in the figure, three placed near both ends in the front-rear direction and in the center) are attached to adjacent edges of each divided bottom plate 10. It is pivotally connected so that it can be folded freely. The width of each divided bottom plate 10 is smaller than the height of the left and right side plates 6, 6.

Then, as shown in FIG. 4, the bottom plates 10, 10
As shown in FIG. 5, the bottom plate 10, 10 is folded, and the left and right side plates 6, 6 are stacked on the bottom plates 10, 10 and folded, thereby switching to a smaller non-use state B.

The structure of the pivot connection between the left and right side plates 6, 6 and the bottom plates 10, 10 is as follows.

That is, as shown in Figs. 5, 6A and 6B, the lower ends of the left and right side plates 6, 6 are bent in an arc shape toward the inner side over almost the entire length, and the bottom plates 10, 10 are bent in an arc shape toward the inner side over the entire length.
The left and right side plates 6, 6 are pivotally connected to the bottom plates 10, 10 so as to be foldable by fitting the bent portions 10a... of the left and right side plates 6, 6 between the end edges of the bent portions 6a... of the left and right side plates 6, 6 and the side plate main portions 6d....

Incidentally, the upper end sides of the left and right side plates 6, 6 are provided with arc-shaped bent portions 6b facing the inner surface side with corners formed at the upper ends, and flanges bent inward at both front and rear end edges. 6c, 6c are bent to reinforce the left and right side plates 6, 6 made of thin steel plates, thereby increasing their rigidity. The bent portion 6b
. . . are provided with slides 12 made of synthetic resin in the vicinity of both ends in the front and back direction, so that the drawer box 4 can be smoothly inserted and removed. The slider 12 is elastically fitted to the bent portion 6b, and a protrusion provided on the lower surface of the slider 12 is fitted into a hole previously formed in the bent portion 6b.

As shown in FIGS. 3 and 4, flange portions 10b bent downward are provided at adjacent edges and both front and rear ends of the divided bottom plate portions of the bottom plates 10, 10.
and a tongue piece 10c bent inward from its lower end, and these flange parts 10b..., tongue piece 1
The bottom plates 10, 10 are reinforced by the bent portions 0c and 10a to increase their rigidity. Further, the width of the flange portion 10b and the bent portion 10a is determined by the width of the flange 6a of the left and right side plates 6, 6, and the bent portion 6b having the function of a reinforcing flange.
The width of the fifth
As shown in the figure, fold the bottom plates 10, 10,
When the left and right side plates 6, 6 are folded and not in use, the bottom plates 10, 10 are arranged to fit within the space between the left and right flanges 6c, which face each other in a flush manner, and the bent portions 6b, which are abutted against each other. It is configured.

The synthetic resin front decorative panel 7 described above has a rearward-opening groove 18 into which the front end portions of the bottom plates 10, 10 and the left and right side plates 6, 6 in the usage state A are inserted. and the bottom plate 1 in the groove 18.
0, 10 and the front ends of the left and right side plates 6, 6 are inserted, insert the screw a into the concentric hole formed in the groove wall and the left and right side plates 6, 6, and insert the small nut b into the screw a. By screwing them together, the front decorative plate 7, the bottom plates 10, 10, and the left and right side plates 6, 6
It is designed so that it can be integrated with the

At the lower end of the rear side plate 8, as shown in FIG.
A horizontal flange portion 8a bent forward from the lower end of the main body portion 8d and a rising plate portion 8a′ bent upward from the front end of the main body portion 8d are bent.
A triangular cut-and-raise protrusion 19 projecting forward is provided near the lower end of d. and bottom plate 1
Flange portions 10b, 10b bent downward from the rear end of the main body portions 10d, 10d of No. 0, 10, and tongue pieces 10c, 10 bent forward from the lower end thereof.
c is pressed from above and fitted into the upper opening groove 21 formed by the main body portion 8d, the horizontal flange portion 8a, and the rising plate portion 8a' of the rear side plate, as shown in FIG. As such, the cut and raised protrusions 19 fit into the through holes 20 formed in advance at predetermined positions of the flanges 10b, 10b, thereby preventing the bottom plates 10, 10 from moving upward,
The forward movement of the bottom plates 10, 10 is prevented by the contact between the front end of the tongue piece 10c of the bottom plate and the rising plate portion 8a' of the rear side plate. In other words, the bottom plates 10, 10 are temporarily fixed in a stretched state by the rear side plate 8. In this temporarily fixed state, the left and right flanges 8 of the rear side plate 8
By inserting the screws a into the concentric holes formed in the left and right side plates 6 and 8c, and screwing the small nuts b into the screws a, the rear side plate 8 and the bottom plate 1 are
0, 10 and the left and right side plates 6, 6 can be integrated.

Further, an arcuate bent portion 8b is formed at the upper end of the rear plate 8 toward the inner surface.
As shown in FIG. 2, flanges 8c, 8c facing the inner surface are provided at the left and right ends, and these are configured to reinforce the rear plate 8 and increase its rigidity.

Next, the structure of the pivot joint between the bottom plates 10, 10 will be explained in detail.

The hinge 11 of the bottom plates 10, 10 is entirely made of a synthetic resin material such as polypropylene, and is constructed as follows. That is, as shown in FIGS. 7 and 8, a thin portion spanning the entire width in the second direction Y is provided at the intermediate portion of the hinge body 14 in the first direction X, and the bent portion 13 is formed by the thin portion. Further, on both sides of the bent portion 13, there are U-shaped penetration portions 1 that pass through the hinge body 14 in the thickness direction.
5 and 15 are provided with their U-shaped ends located on the opposite side of the bending part 13, and one side of the part surrounded by the penetration part 15 is an inclined surface that becomes higher toward the bending part 13. This portion is formed into elastically deformable locking pieces 17, 17. The locking piece 1
7 and 17, so that the direction of assembly does not matter.
The shape is symmetrical with respect to the bent portion 13.

As shown in FIG. 4, the locking pieces 17, 17 of the hinge 11 are connected to the flange parts 10b... and the tongue pieces 10c at the adjacent edges of the bottom plates 10, 10.
The locking pieces 17 are inserted into the through holes 16 formed at the corners of the holes 16 against the elastic restoring force of the locking pieces 17, and are locked to the edges of the through holes 16. As a result, the bottom plates 10, 10 are pivotally connected so as to be foldable around the longitudinal axis.

The locking pieces 17, 17 of the hinge 11 are inserted into the through holes 16...
As shown in Figure 8, when inserting the
The locking pieces 17, 17 may be inserted into the through holes 16 using the hinge 11 in its molded state, that is, with the hinge body 14 stretched flat, or as shown in FIG. While folding the hinge 11 in half from the bending part 13,
The surfaces of the main body portions 10d and 10d of Nos. 0 and 10 are made flush, and the flange portions 10b of the adjacent edges of both,
The locking pieces 17, 17 may be inserted into the through holes 16 in this state with the locking pieces 10b facing each other in abutting state.

The width of the through holes 16 in the front and back direction is the same as that of the hinge 1.
slightly larger than the width in the second direction Y of 1, and the tongue piece 1
The dimension l in the width direction of 0c is set slightly larger than the thickness of the hinge body 14 near the bent portion 13, and the hole dimension in the width direction of the flange portion 10b
l ₁ inserts the locking piece 17 into the through hole 16, and
The insertion direction side end surface e of the hinge body 14 and the locking piece 17
The bending portion 13 does not come into contact with the through-hole edge h of the flange portion 10b when the end surface f on the side in the retaining direction contacts or approaches the opposing surfaces of the bottom plate main body portion 10d and the tongue piece 10c. The dimensions are set. If the dimensions of the through-hole 16 of the hinge 11 are set as described above, movement (wobble) of the hinge 11 within the through-hole 16 and, by extension, wobbling of the bottom plates 10, 10 can be suppressed as much as possible. Said bending part 1
3 is in contact with the through-hole edge h, the end surface e of the hinge body 14 does not need to be in contact with or close to the bottom plate main body portion 10d, and may be configured to be separated from the bottom plate body portion 10d by a large distance.

In the above embodiment, the front decorative plate 7 and the rear side plate 8 are fixedly connected to the left and right side plates 6, 6 by screws a and small nuts b. Appropriate fixing means can be used to fix the front decorative plate 7 and the rear side plate 8, and the present invention is not limited to the illustrated structure. Further, various modifications can be made to the configuration for pivotally connecting the bottom plates 10, 10 to each other and the configuration for pivotally connecting the bottom plates 10, 10 to the left and right side plates 6, 6.

[Effect of idea]

Since the present invention has the above-described configuration, it can achieve the following effects.

When assembling a drawer box in which the bottom plate is folded in half at the center and stored in the space inside the flanges provided on the left and right side plates to make it smaller, the drawer box is in an expanded state. The front end of the bottom plate is fitted into the rear opening groove formed at the lower end of the back of the synthetic resin front decorative board, and the rear end of the bottom plate has a flange bent downward from the rear end of the main body of the bottom plate. The tongue piece at the tip is inserted into the groove of the upper opening formed by the main body portion of the rear plate, the horizontal flange, and the rising plate portion. In this case, when the flange portion and the tongue piece of the bottom plate are fitted into the groove of the rear plate, the lower surface of the tongue piece of the bottom plate is supported by the horizontal flange of the rear side plate, and the front end of the tongue piece of the bottom plate and the tongue piece of the bottom plate are supported by the horizontal flange of the rear side plate. The contact with the rising plate portion of the rear side plate prevents the bottom plate from moving forward with respect to the rear side plate, and furthermore, the cut and raised protrusion near the lower end of the main body portion of the rear side plate is inserted into the through hole of the flange portion of the bottom plate. This will prevent the bottom plate from moving upward.

Therefore, the bottom plate is temporarily held in an expanded state by the rear side plate, and in this state, the front end of the bottom plate can be inserted into the groove of the front decorative board, making assembly easy.

In the assembled state, the front end of the bottom plate is fitted into the groove on the back of the front decorative board, and at the rear end of the bottom plate, the flange and the tongue piece are connected to the main body of the back side plate, the horizontal flange, and the rising plate. Since the cut-and-raised projections fit into the grooves thus formed and are engaged with the through-holes, there is no risk of the bottom plate bending upward or downward, resulting in a strong drawer box.

Since the rear side plate is made of metal, it is easy to bend the rising plate part and form the cut and raised protrusions as described above.On the other hand, the synthetic resin front decorative plate does not have the rising plate part as described above. Since a rearwardly opened groove is formed on the back surface of the front decorative plate and the front end of the bottom plate is fitted into the groove, there is no problem in removing it from the molding die.
Therefore, it is easy to manufacture as a whole.

Furthermore, since the cut and raised projections are provided on the rear side plate of the drawer box, it does not look unsightly.

[Brief explanation of the drawing]

1 to 9 show an embodiment of the present invention,
Figure 1 is an overall perspective view of the storage, Figure 2 is an exploded perspective view of the drawer box, Figure 3 is a vertical side view of the drawer box with the fitting part between the bottom plate and the rear plate enlarged, and Figure 4 is the adjacent drawer box. Figure 5 is a vertical cross-sectional view of the drawer box with the bottom plate's pivot connection section enlarged, Figure 5 is a vertical cross-sectional view showing the bottom plate and left and right side plates folded and not in use, Figure 6 A and B are the bottom plate and left and right side plates pivoted. FIG. 7 is a plan view of the hinge, FIG. 8 is a longitudinal side view of the same, and FIG. 9 is a cross-sectional view for explaining the method of attaching the hinge to the bottom plate. . FIG. 10 is an explanatory diagram of a conventional example. 6...Left and right side plates, 6c...Flange, 7...Front decorative plate, 8...Rear side plate, 8a...Horizontal flange, 8a'...Rising plate portion, 8d...Body portion, 1
0... Bottom plate, 10d... Main body portion, 10b... Flange portion, 10c... Tongue piece, 18... Groove, 19
... Cut and raised projection, 20 ... Through hole, 21 ...
groove.

Claims (1)

[Scope of utility model registration request] bottom plates that are foldably connected to each other around a longitudinal axis; metal left and right side plates that are foldably and pivotally connected to these bottom plates around an axis that is parallel to the axis; and the bottom plate. and a front decorative plate made of synthetic resin and a rear side plate made of metal that are fixed to the left and right side plates, and flanges protruding inward are provided on both the front and rear edges or the upper edge of each of the left and right side plates, and the bottom plate and In the folded state of the left and right side plates, the bottom plates connected to each other are formed so as to be housed in the spaces of the flanges protruding inwardly of the left and right side plates, and the bottom plates are formed so as to be housed in the spaces of the flanges that protrude inwardly from the left and right side plates. An open groove is formed, and the front end of the bottom plate in an expanded state is fitted into the groove, and a lower end of the main body of the rear side plate is formed.
A horizontal flange bent forward and a rising plate part bent upward from the front end of the horizontal flange are bent, and a protrusion protruding forward is provided in the vicinity of the lower end of the main body, and the bottom plate A flange portion bent downward and a tongue piece bent forward from the lower end are formed at the rear end of the main body, and a through hole is provided in the flange portion at a position corresponding to the cut and raised protrusion. , the flange portion and the tongue piece of the bottom plate in the expanded state are inserted into the upwardly opening groove formed by the main body portion, the horizontal flange, and the rising plate portion of the rear side plate, and the protrusion is inserted into the through hole. A structure of a drawer box characterized by being engaged with.