JPH0133470Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a transportation box for storing and transporting articles such as bread.

This type of conventional box is disclosed in Japanese Utility Model Publication No. 56-48045, in which the same items can be stacked on top and bottom in two high and low positions, and when storing items, it is placed in a high stacked position to prevent damage to the items. The structure is designed to prevent empty boxes from collapsing, and to stack them in a low position when collecting empty boxes, contributing to the rationalization of transportation.

However, in this conventional box, there is a low-position engagement deep recess near the high-position engagement shallow recess, making the high-position stacking unstable and the deep engagement recess being slanted. It is necessary to engage the mating groove while moving at an angle, and for this reason, one of the front and rear walls is low and the contents may spill out, and the notch engagement groove is formed by a large cutout in the side wall. The contents may fall out even if it is twisted, and the deep engagement recess and locking protrusion are the same size on the top and bottom, so
It was difficult to engage and insert, and there were many problems.

As a conventional technology to solve such problems,
There is one disclosed in Utility Model Publication No. 49-6329.
In this prior art, the engaging protrusion and the engaging groove are enlarged at the top, making engagement easy, and the engaging groove has a wall on the outside in the vertical direction, and the entire circumferential wall is at the same height. , which prevents the contents from spilling.

However, in this latter conventional technique, it is necessary to hold the upper stacked box with both hands and move it almost above the lower box and then stack it on top of each other, and one end of the upper stacked box is placed on the lower box while sliding. This makes it difficult to achieve substantial stacking ease.

In view of these conventional problems, the present invention not only makes stacking easier and prevents the contents from spilling out, but also allows the upper stack boxes to be placed in the lower boxes either at the front or back and stacked while sliding. The purpose is to provide transport boxes.

The feature of the present invention for achieving this purpose is that it is formed into a rectangular shape with an upwardly expanding opening, comprising front and rear walls 2, 3, left and right side walls 4, 5, and a bottom wall 6 of the same height. The same box is formed into a box that can be stacked in two different heights, and one of the front and rear walls 2 and 3 and one of the front and rear sides of the left and right side walls 4 and 5 located far from the box has an upwardly expanding shape that protrudes from the outer surface and has an upwardly expanding shape. An engaging protrusion 12 is formed whose lower end is located slightly above the lower edges of the left and right side walls 4 and 5, and protrudes from the outer surface of the other of the front and rear walls 2 and 3 and the other of the front and rear of the left and right side walls 4 and 5. A grooved protrusion 11 is formed, and a shallow recess 13 is formed in the flange part 8 forming the box top surface 7 at a position corresponding to the engagement protrusion 12 to which the engagement protrusion 12 of the top stacking box can engage. , Engagement convex portion 1 of top stacking box reversed front and back
An upwardly expanding deep groove 14 is formed from the upper surface 7 to the inside of the grooved protrusion 11, and the lower end 12a of the engaging protrusion 12 is positioned higher than the lower edges of the left and right side walls 4 and 5, and the lower box The bottom of the deep groove 14 of the grooved protrusion 11 is formed so as to be able to come into sliding contact with the upper surface 7 .
2, and the engaging convex portion 1 is positioned higher than the lower end 12a of the
2 and the center line CL of the grooved protrusion 11 is vertical, and is located near the bottom of the grooved protrusion 11 of the left and right side walls 4 and 5 above the lower edge of the side wall and comes into sliding contact with the upper surface 7 of the lower box. A grooved protrusion 23 having a groove 22 in the vicinity of the engagement protrusion 12 of the left and right side walls 4 and 5 with which the protrusion 21 can be engaged from above.
It is at the point where it was formed.

Embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 to 10, reference numeral 1 denotes a rectangular transport box, which has a rectangular shape with an upwardly enlarged opening and has front and rear walls 2, 3, left and right side walls 4, 5, and a bottom wall 6. A flange portion 8 forming a box top surface 7 is formed on the upper edges of the front and rear walls 2, 3 and the left and right side walls 4, 5, and the inner periphery of this flange portion 8 is formed on the bottom wall 6.
It is larger than the outer circumference of the box 1, and the same boxes 1 can be stored and stacked one above the other.

That is, the front and rear walls 2, 3 and the left and right side walls 4, 5 are inclined outward from the bottom wall 6 side to the flange portion 8 side.
These front and rear walls 2, 3 and left and right side walls 4, 5 are the bottom wall 6.
It may be formed vertically from the side to the middle, and it is sufficient that at least the upper part is formed in an upwardly expanding shape. The bottom wall 6 can be formed into a net shape instead of a blind wall.

There is no distinction between the front and rear of this transport box 1, but if we assume that the wall 2
are the front and rear, the front wall 2 has grooved protrusions 11 on the left and right ends, and the rear wall 3 has engagement protrusions 1 on the left and right ends.
2 is formed. In addition, the left and right side walls 4 and 5 are provided with grooved protrusions 11 at the rear end portions farther from the front wall 2, and the same engaging protrusions 12 are provided at the rear end portions farther from the rear wall 3. It is provided at the front end,
Therefore, grooved protrusions 11 are provided at the corners of the transport box 1.
and the engaging convex portion 12 are arranged so that the weight balance and the design balance are good.

The engaging protrusion 12 is a substantially U-shaped rib-like protrusion that protrudes outward from the outer surface of each wall, and its center line CL
is vertical, its protrusion amount is smaller than the flange portion 8, and it widens from the bottom to the top, and its lower end 12a
is located slightly above the lower edges of the left and right side walls 4, 5 and the front and rear walls 2, 3.

Reference numeral 13 denotes a shallow recess formed on the upper surface 7 of the flange portion 8, which is formed above the engaging convex portion 12, so that when the same boxes 1 are stacked on top of the transport box 1 in the same direction, the upper box The lower end of the engaging convex portion 12 of No. 1 (upper stacking box) is placed and engaged. At this time, the lower edges of the front and rear walls and left and right side walls of the upper box 1 are located within the upper edges of the front and rear walls 2, 3 and the left and right side walls 4, 5 of the lower transport box 1. That is, the boxes 1B and 1C have the relationship shown in FIG. 10, and are stacked in a high position.

The lower end 12a of the engaging convex portion 12 can be slidably contacted with the flange portion 8 of the lower box 1.
As in the relationship between C and 1D, a heavy box D that stores goods
By pushing forward while bringing the lower end 12a into sliding contact with the flange portion 8, the lower end 12a engages with the shallow recess 13, allowing stacking in a high posture and stacking with light labor. Note that the sliding contact of the lower end 12a with the flange portion 8 can also be applied when stacking in a low position, which will be described later.

The grooved protrusion 11 protrudes outward from the outer surface of each wall, its center line CL is vertical, and its protrusion amount is smaller than the flange part 8 and larger than the engagement convex part 12, A deep groove 14 is formed inside the flange portion 8 from the upper surface 7 of the flange portion 8 .

The bottom of this deep groove 14 is located at the lower end 12 of the engagement convex portion 12.
It is located above a, has a slightly larger area than the lower end 12a, and is enlarged upward from the bottom, so that when the upper boxes 1 that have been reversed front to back are stacked, the engagement protrusion 12 of the upper boxes 1 can be engaged. , Box 1 in Figure 10
By stacking like the relationship between A and 1B, about 2
It is polymerized to one-fold and has a low profile. At this time, the lower end of the grooved protrusion 11 is placed on the flange 8 around the shallow recess 13.

The shallow recess 13 and the deep groove 14 ensure reliable positioning when stacking high and low positions, but in this embodiment, means is provided for more reliable positioning during low positions.

The first positioning means is two protrusions 16 provided below the engagement protrusion 12 and two notches 17 formed in the deep groove 14, and the second positioning means is provided below the grooved protrusion 11. The two provided protrusions 18 and the recess 19 formed on the inner surface of the engaging protrusion 12 are engaged when the upper and lower boxes are overlapped in half and placed in a low position. , prevents rattling of both boxes.

Further, the recess 19 is formed continuously with the shallow recess 13, and the protrusion 16 of the first positioning means can engage with the upper part of the recess 19 when in the high position.

Reference numeral 21 denotes a protrusion provided near the bottom of the grooved protrusion 11 of the left and right side walls 4, 5, and is located on the side of the protrusion 18, and its lower surface is located above the lower edge of the side wall, and the upper stacking box With the lower edge of the side wall of
It is used when stacking the transport boxes 1 from the wall 3 side, as in the case of the boxes 1C and 1E in FIG. 10.

A grooved protrusion 23 having a groove 22 in which the protrusion 21 can be engaged is provided near the engagement protrusion 12 on the left and right side walls 4 and 5.
is formed. The groove 22 of this grooved protrusion 23 is formed from the top surface 7 to the bottom, and is engaged with the protrusion 21 of the upper box which is reversed front to back and stacked in a low position.

The protrusion 21 has substantially the same function as the lower end 12a of the engaging convex portion 12, and when stacking the transport boxes 1 in a high or low position, the tip of the protrusion 21 is attached to the lower end of the lower box, regardless of whether the transport boxes 1 are stacked from the front or back. It can be slid on the upper surface 7 of the box, and is formed so that it can be stacked easily and with lighter labor, not only when the boxes are heavy with stored items, but even when the boxes are empty.

11 and 12 show a second embodiment of the present invention, in which the transport box 1 is not provided with the first and second positioning means, and the protrusion 21 is located directly below the grooved protrusion 11. and a groove 2 in which the protrusion 21 can engage.
2 is formed on the inner surface side of the engagement convex portion 12.

In this second embodiment, similarly to the first embodiment, even if the transport boxes 1 are stacked from the rear wall 3 side by the projections 21, they can be slid while being placed on the lower boxes. Since it can be formed at the same position as the engaging protrusion 12, it is easy to manufacture and is also preferable in terms of design.

According to the present invention described in detail above, the peripheral wall has the same height and the deep groove 14 is formed in the grooved protrusion 11 to prevent the contents of the box from falling out.
The deep groove 14 for low stacking is upwardly expanded and vertical, making engagement and insertion easy, and the lower end 12a of the engagement protrusion 12 is located slightly higher than the lower edges of the left and right side walls 4 and 5. Since the lower edge of the side wall enters the lower box at that time, it is possible to perform stacking work while leaving one end of the upper box to the lower box and restricting lateral movement. A shallow recess 13 for high stacking is formed at a position away from the deep groove 14 on the top surface 7 of the boxes, allowing for stable placement of highly stacked boxes, and these allow the same box to be placed in two high and low configurations very easily. Can be stacked.

Furthermore, based on these effects, a protrusion 21 that can be slidably contacted with the upper surface 7 of the lower box is formed near the bottom of the grooved protrusion 11 so that the same protrusion 21 as the lower end of the engagement protrusion 12 is formed. , it is possible to perform stacking work while leaving the other end of the upper box to the lower box and regulating lateral movement.
The upper box can be opened and slid from either end,
The groove 22 near the engagement protrusion 12 and the grooved protrusion 23 having the groove can prevent the protrusion 21 from hitting the side wall when the boxes are stacked low, and prevent the contents of the box from spilling out from the groove 22. It has the following effects.

[Brief explanation of the drawing]

1 to 10 show a first embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a front view, and FIGS. 3 and 4 are views taken in the direction of the arrows in FIG. 1, respectively. 5 to 8 are a cross-sectional view taken along the line -, - sectional view, - sectional view, and - line sectional view of FIG. 1, FIG. 9 is a perspective view of the main part, and FIG. FIGS. 11 and 12 are explanatory diagrams showing the height and low stacking postures of the transport boxes, and show a second embodiment of the present invention, with FIG. 11 being a front view and FIG. 12 being a perspective view of the main parts. 1... Transport box, 2... Front wall, 3... Back wall, 4...
...Right side wall, 5...Left side wall, 7...Top surface of box, 8...
Flange portion, 11... Grooved protrusion, 12... Engaging convex portion, 12a... Lower end, 13... Shallow recess, 14...
Deep groove, 21...protrusion, 22...groove, 23...grooved protrusion, CL...center line.

Claims (1)

[Scope of utility model registration request] The box has front and rear walls 2, 3, left and right side walls 4, 5, and a bottom wall 6 of the same height, and is formed into a rectangular shape with an upwardly expanding opening, and on which the same items can be stacked in two different heights. One of the front and rear walls 2, 3 and one of the front and rear of the left and right side walls 4, 5 located far from the front and rear walls respectively protrude from the outer surface in an upwardly expanding shape, and the lower end thereof is located slightly higher than the lower edge of the left and right side walls 4, 5. A box upper surface 7 is formed by forming a grooved protrusion 11 protruding from the outer surface on the other of the front and rear walls 2 and 3 and on the other of the front and rear sides of the left and right side walls 4 and 5, respectively. A shallow recess 13 is formed in the flange portion 8 at a position corresponding to the engagement protrusion 12, in which the engagement protrusion 12 of the top stacking box can engage, and the engagement protrusion 12 of the top stacking box that is reversed front and back engages. A deep groove 14 that can be enlarged upward is formed from the upper surface 7 to the inside of the grooved protrusion 11, and the lower end 12 of the engagement protrusion 12 is
a is located above the lower edges of the left and right side walls 4 and 5 and is formed to be able to come into sliding contact with the upper surface 7 of the lower box, and the bottom of the deep groove 14 of the grooved protrusion 11 is connected to the lower end 1 of the engagement projection 12.
2a, and the center line CL of the engaging protrusion 12 and the grooved protrusion 11 is vertical, and the grooved protrusion 11 of the left and right side walls 4, 5 is located near the bottom of the grooved protrusion 11 above the lower edge of the side wall. In addition to forming a protrusion 21 that is positioned so as to be able to come into sliding contact with the upper surface 7 of the lower box, the left and right side walls 4,
5. A transport box characterized in that a grooved protrusion 23 having a groove 22 with which a protrusion 21 can be engaged from above is formed near the engagement protrusion 12 of No. 5.