JPH0447067Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a folding container as a so-called transit box used when transporting or transporting products, specifically, the construction of side plates and tilting plates for the top and bottom frames. Regarding support structures.

[Prior Art] In Utility Model Publication No. 1-38027, the present applicant proposed an upper frame having a frame shape, a pair of side plates rotatably supported with respect to the upper frame, and a bottom frame having a bottomed shape. and a tilting plate that is rotatably supported by the bottom frame, is supported so as to be inserted along the frame side of the upper frame, and engages with the upper frame at its upper end, the side plate proposed a folding container in which at least one of the bottom frame and the tilt plate is fixed to a synthetic resin frame by caulking pins provided on the frame.

In this folding container, the upper frame and the bottom frame are opposed to each other at a predetermined interval, and each has a through hole in the center. After forming each shafted part with a width and a through hole in the center, and positioning the shafted part between the shaft parts, insert the shaft pin into the corresponding through hole to separate the side plate and the tilting plate. It is rotatably supported.

[Problems to be solved by the invention] However, in the support structure of the side plates and the tilt plate described above, after the through holes of the shaft support and the through holes of the supported support are positioned so that they match, these Since the shaft pin had to be inserted into the through hole, the assembly workability was poor and the assembly time was long.

The present invention was devised to solve the above-mentioned conventional problems, and its purpose is to make the side plates and flap plates efficiently rotatable with respect to the top frame and bottom frame. To provide a support structure for a side plate and a tilt plate of a folding container, which can be supported to efficiently perform assembly work.

[Means for Solving the Problems] Therefore, the present invention has an upper frame having a rectangular frame shape, a bottom frame having a bottom shape that almost matches the upper frame, and an upper end portion on one opposite side edge of the upper frame. A pair of side plates that are rotatably supported and whose lower ends engage with the bottom frame slide into contact with a notch located between both ends of the pair of side plates and provided on the inner circumferential side of the upper frame. In a folding container that is supported as shown in FIG. The first support shaft attached to the rotation support part of the bottom frame, the second support shaft attached to the rotation support part of the bottom frame, the pivot support of the side plate to the top frame, and the pivot support of the tilt plate to the bottom frame are connected to the first and second support shafts. It has a shaft support hole through which the support shaft can be inserted, and also has a notch part on the outer periphery leading to the shaft support hole, and the shaft support is elastically deformed according to the circumference of the notch part to form the first and second support shafts. It features a support structure for side plates and tilt plates that can be inserted.

[Function of the device] Since the present invention is constructed as described above, the cutout portions of the rotation shaft supports of the side plates and the tilt plate are positioned relative to the support shafts attached to the shaft supports of the top frame and bottom frame. When pressed in this state, the rotary support portion corresponding to the periphery of the notch expands in diameter while being elastically deformed, climbs over the support shaft, and then elastically returns to be rotatably engaged with the support shaft.

[Example] An embodiment of the present invention will be described below.

Figure 1 is a perspective view showing the outline of the folding container, Figure 2 is a vertical sectional view taken along line A-A in Figure 1, and Figure 3 is a perspective view showing the outline of the folding container.
FIG. 4 is a longitudinal sectional view taken along the line B-B in FIG. 4, and a schematic perspective view showing the assembled state of the side plate. The folding container 1 includes a rectangular upper frame 3, a pair of opposing side plates 5 rotatably supported by the upper frame 3, and a bottom frame 7 with a bottom corresponding to the upper frame 3.
It is composed of a pair of opposing tilting plates 9 that are rotatably supported by the bottom frame 7, and these upper frame 3, side plates 5, bottom frame 7, and tilting plates 9.
are made of the same synthetic resin, such as polypropylene resin or ABS resin.

A rib 11 is provided on the long frame 3a side of the upper frame 3.
is integrally formed so as to extend inward of the folding container 1 in a planar manner with a width corresponding to the thickness of the side plate 5, which will be described later. Both ends of the rib 11 and the upper frame 3
An opening 12 is formed between the opening 12 and the short frame 3b, and a gate plate 9, which will be described later, is slidably supported in the opening 12. A large number of shaft supports 1 are provided on the lower surface of the rib 11.
3 are integrally molded at required intervals in the longitudinal direction, and a shaft support hole (not shown) is formed in the shaft support 13. A first support shaft 1 is installed in each shaft support hole.
9 is attached with both ends protruding laterally. A large number of substantially letter-shaped engaging portions 15 are integrally molded inside the short frame 3b of the upper frame 3. The engaging portion 15 is engaged with an engaged portion 37 of the tilting plate 9, which will be described later.

A side plate 5 is rotatably supported on the upper frame 3 by a shaft support 13. The side plate 5 is composed of a rectangular side plate frame 5a and a resin corrugated board 5b fixed to the side plate frame 5a, and the side plate frame 5a and the resin corrugated board 5b are made of the same synthetic resin. A large number of hinge parts 17 constituting a pivot support are integrally molded at the upper end of the side plate frame 5a so as to sandwich the pivot support 13, and a pivot support hole 17a is formed in the hinge part 17. Further, a notch 17b is formed on the outside of each hinge portion 17 so as to communicate with a shaft support hole 17a having a width smaller than the outer diameter of the support shaft 19. Further, a large number of engagement holes 21 are formed at the lower end of the side plate frame 5a, and engagement pieces 27, which will be described later, are engaged with the engagement holes 21. Said side plate frame 5
A large number of pins 23 are integrally molded on the inner surface of a.
Further, the resin corrugated board 5b has a large number of through holes 2.
5 are formed inwardly from the end of the resin corrugated board 5b at a required distance 11, and at a required inner diameter d1 within about 30 mm, corresponding to the pin 23. After inserting the pin 23 into the through hole 25, the shaft end of the pin 23 is caulked to integrate the side plate frame 5a and the resin corrugated board 5b. Incidentally, FIG. 4 shows the relationship between the side plate frame 5a and the resin corrugated board 5b, and the bottom frame 7 and the tilt plate 9 have the same structure, so illustration thereof is omitted.

The bottom frame 7 has a bottomed shape substantially corresponding to the top frame 3, and is composed of a bottom frame frame 7a and a resin corrugated board 7b. The bottom frame frame 7a and the resin corrugated board 7b are made of the same synthetic resin. A large number of engagement pieces 27 are formed on the long frame of the bottom frame 7a in correspondence with the engagement holes 21. Further, a stud 29 is integrally formed on the short frame of the bottom frame frame 7a so that it can be inserted into the opening 12. A plurality of shaft supports 31 constituting a rotation support part are integrally molded on the stud 29.
A shaft support hole (not shown) is formed in the shaft support 31 . A second support shaft 35 is inserted into the hole of the shaft support 31.
is inserted so that both ends of the shaft protrude laterally. Further, a large number of pins 43 are integrally molded on the bottom surface of the bottom frame frame 7a, and the pins 43 are inserted into through holes (not shown) formed in the resin corrugated board 7b. Then, the bottom frame 7 is formed by caulking the shaft ends of the pins 43 to integrate the bottom frame frame 7a and the resin corrugated board 7b.

A tilting plate 9 is provided on the bottom frame 7 to cover the opening 1.
2, and is supported so as to be able to stand upright. The tilt plate 9 is composed of a tilt plate frame 9a and a resin corrugated board 9b, and the tilt plate frame 9a and the resin corrugated board 9b are made of the same synthetic resin. A large number of shaft supports 33 are integrally formed at the lower part of the tilt plate frame 9a so as to sandwich the shaft support 31 therebetween, and a shaft support hole 33a is formed in the shaft support 33. Furthermore, a notch 33b is formed on the outside of each shaft support 33 so as to communicate with the shaft support hole 33a. Incidentally, the pivot shaft 35 is connected to the upper frame 3,
It is made of the same synthetic resin as the side plates 5, bottom frame 7, and gate plate 9. Further, an engaged portion 37 is provided at the upper end of the tilting plate frame 9a to form the engaging portion 15.
It is integrally molded according to the requirements. Further, a large number of pins 41 are integrally molded on the inner surface of the tilt plate frame 9a,
The pin 41 is inserted into a through hole (not shown) formed in the resin corrugated board 9b in accordance with the pin 41. Then, the shaft end of the pin 41 inserted into the through hole is caulked to integrate the gate plate frame 9a and the resin corrugated board 9b, thereby forming the gate plate 9.

Next, the folding container 1 configured as above
The method of assembling will be explained with reference to FIGS. 5 to 7.

FIGS. 5 to 7 are explanatory diagrams showing the state in which the side plates and the tilt plate are attached.

When the hinge portion 17 of the side plate 5 is pressed against both ends of the support shaft 19 inserted into the shaft support 13 of the upper frame 3, the hinge portion 17 is pressed against the notch portion 17 of the side plate 5.
After overcoming the support shaft 19 which has been pushed apart while being elastically deformed by the support shaft 19 in sliding contact with b, the support shaft 19 is inserted into the shaft support hole 17a by the elastic return force. This allows the shaft support 1 of the upper frame 3 to
The upper end of the side plate 5 is rotatably supported relative to the side plate 3 .

Further, after inserting the tilting plate 9 from above to the lower side into the opening 12 of the upper frame 3 to which the side plate 5 is attached as described above, the shaft support 33 located at the lower end of the tilting plate 9 is inserted into the bottom frame 3. The two ends of the support shaft 35 attached to the shaft support 31 are opposed to each other. In this state, the shaft support 33 is connected to the notch 3.
3b toward both ends of the support shaft 35, the shaft support 33 is elastically deformed as it comes into sliding contact with both ends of the support shaft 35, is pushed apart, and then overcomes the support shaft 35. Due to the elastic return force, the shaft support hole 33
The support shaft 35 is inserted into the inside a. As a result, the lower end portion of the gate plate 9 is rotatably supported by the shaft support 31 of the bottom frame 7.

Next, a method of assembling the folding container 1 having the above structure will be explained with reference to FIGS. 8 to 11.

FIG. 8 is a perspective view showing the folding container 1 in a folded state, FIG. 9 is a perspective view showing the tilt plate 9 in the middle of being raised, and FIG. 10 is a vertical cross-section taken along line C-C in FIG. 11 is a vertical cross-sectional view taken along line D-D in FIG. 8; FIG.

First, the gate plate 9 is rotated from the folded state shown in FIG. 8 about the support shaft 35 as shown in FIG. 9 to stand up.

Next, in the above state, the opening 1 is
When the upper frame 3 is lifted upward while the tilting plate 9 is brought into sliding contact with both ends of the rib 11 and the long frame 3a via 2, the engaging part 15 engages with the engaged part 37, and the upper frame 3 and the tilt plate 9 are integrated.

Next, in the above state, the side plate 5 is rotated about the support shaft 19, and the engagement piece 27 is engaged with the engagement hole 21 thereof. At this time, both end surfaces of the side plates 5 come into contact with the inner surfaces of both ends of the tilt plates 9, and the side plates 5 contact the inner surfaces of the pair of tilt plates 9.
It is held between the two. As a result, the folding container 1 is assembled into a box shape by the upright side plates 5, gate plates 9, upper frame 3, and bottom frame 7.

In addition, the folding container 1 assembled as described above
is folded in the reverse order.

In this way, in this embodiment, the support shaft 19 provided on the shaft support 13 of the upper frame 3 and the bottom frame 7
The hinge portion 17 of the side plate 5 and the pivot support 3 of the tilt plate 9 are connected to the support shaft 35 provided on the pivot support 31 of the
3 is rotatably supported, by pressing the hinge part 17 and the shaft support 33 against both ends of the support shaft 19 and the support shaft 35, the hinge part 17 and the shaft support 33 are elastically deformed and spread apart, and the shaft It can be inserted into the supporting holes 17a and 33a. For this reason, the through holes of the pivot support 13 and the pivot support 31,
The workability is better than the conventional support structure in which the support shaft 19 and the support shaft 35 are inserted by aligning the through holes of the hinge portion 17 and the shaft support 33.

[Effects of the invention] As described above, the present invention provides a folding structure that enables efficient assembly work by supporting the side plates and the gate plate in an efficient and rotatable manner relative to the top frame and the bottom frame. It is possible to provide a support structure for the side panels and flaps of the container.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the outline of the folding container, Figure 2 is a vertical sectional view taken along line A-A in Figure 1, and Figure 3 is a perspective view showing the outline of the folding container.
FIG. 4 is a schematic perspective view showing the assembled state of the side plate, FIGS. 5 to 7 are explanatory views showing the assembled state of the side plate and the tilt plate, and FIG. FIG. 9 is a perspective view showing the folded state of the folding container; FIG.
The figure is a vertical sectional view showing the cross section taken along line C-C in Figure 8.
FIG. 1 is a longitudinal sectional view taken along line D--D in FIG. 8. In the figure, 1 is a folding container, 3 is an upper frame, and 3a
is a long frame, 3b is a short frame, 5 is a side plate, 5a is a side plate frame,
5b is a resin cardboard board, 7 is a bottom frame, 7a is a bottom frame frame, 7b is a resin cardboard board, 9 is a tilting board, 9a is a tilting board frame, 9b is a resin cardboard board, 23 is a pin, and 25 is a through hole. .

Claims (1)

[Claims for Utility Model Registration] An upper frame in the shape of a rectangular frame, a bottom frame in a bottomed shape that almost matches the upper frame, and an upper end rotatably supported on one opposing side edge of the upper frame. At the same time, the lower end is supported so as to be in sliding contact with a pair of side plates that engage with the bottom frame, and a notch located between both ends of the pair of side plates and provided on the inner peripheral side of the upper frame. A folding container comprising a pair of gate plates rotatably supported by a bottom frame and having upper ends engaged with the upper frame, the folding container comprising: a first support shaft attached to the rotation support portion of the upper frame; The second support shaft attached to the rotation support part of the bottom frame, the shaft support of the side plate to the top frame, and the shaft support of the tilt plate to the bottom frame are shaft supports through which the first and second support shafts can be inserted. In addition to having a hole, a part of the outer periphery has a notch that reaches the shaft support hole, and the shaft support can be elastically deformed according to the periphery of the notch so that the first and second support shafts can be inserted. Features a support structure for side plates and tilt plates.