JPH11152135A - Returnable container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a returnable container excellent in durability wherein fluidal contents such as granular or powdery substances such as beads and scraps can be discharged by easily removing a side panel from a removing part while the side panel is being coupled in a rectangular shape viewed from a plane. SOLUTION: When an operator intentionally pushes a pair of right and left push control members 34 while the pair of push control members 34 are respectively rotated with a contact part 8 in contact so that they protrude upward from upper rims of a pair of respective side panels 2 while the panels 2... are being coupled, the push control members 34 and a locking member 24 rotate in an integral chevron-shape with a pivot part 100 as the center. Then a receive recess 24a rises with an L-shaped hook 14c locked, the side panel 2 between the pair of right and left side panels 2, 2 is forcibly drawn out from a removing part, and the side panel 2 is rotated forward with a weight of contents, thereby discharging the contents.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a returnable box.

[0002]

2. Description of the Related Art Conventionally, a returnable box is provided with grooves around four corners of a floor panel or with protrusions to form insertion / removal portions for four side panels, and the upper and lower sides of the adjacent side panels are formed. There are various structures, such as a structure in which the edges are connected by a connection fitting, an angle-shaped material, or the like so that the edges cannot be overturned. In some cases, the side panels are folded after the connection fittings and angle members are disconnected.

[0003]

By the way, in the case of granular or powdery contents (beads, iron scraps, etc.) which are so fine that they are difficult to take out (discharge), it is better to carry out from the upper open part. It is preferable to remove the contents from the opening that is opened by removing an arbitrary side panel, because the contents can be discharged using the weight of the contents and no labor is required. When the side panel is removed and one side of the return box is opened, it is necessary to release the connection of the angle-shaped members and the connection brackets in advance and to make the side panel free from the other adjacent side panels. There is. In this way, the work of disconnecting the angle shape members and the connection fittings and removing the side panel is bothersome, and when the side panel is removed and the contents are discharged, the free end side connected to the portal is parallel to the free end side. The expanding deformation force concentrates on the side panels (two sheets) due to the weight of the contents, which causes a decrease in the durability of the side panels due to continuous use.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances, and it is an object of the present invention to easily remove a side panel from a plugging / unloading portion while connecting the side panel in a rectangular shape in a plan view, and to use beads and iron. An object of the present invention is to provide a durable returnable box that can discharge fluid contents such as dusts and other particulate matter and powdery matter.

[0005]

The technical measures taken to achieve the above object are as follows. A first aspect is a floor panel fixed at an intermediate portion of a support leg provided outside four corners, and a floor panel thereof. Four side panels, the lower ends of which are erected so that they can be inserted and removed from the insertion and removal part provided inside the four corners of the panel;
A corner upper fitting for connecting the adjacent side panels to each other, wherein the corner upper fitting is movable in the front-rear direction along the side panels at both upper end portions on the outer surface of the pair of opposing side panels and in a circumferential direction. An L-shaped hook portion provided at the tip when pivotally provided and moved forward protrudes laterally from the front view area of the same side panel, and both ends of the outer surface of a pair of other side panels The intermediate portion is pivotally mounted at the same height as the locking hook body so as to be rotatable in the vertical direction, and when the stopper comes into contact with a stopper provided on the same side panel portion outside the coaxial mounting portion, the tip A locking member that projects laterally from the front view area of the side panel and intersects the L-shaped hook portion, and is attached to the shaft attachment portion so as to be rotatable vertically along the outer surface of the locking member. A push operation member. A receiving recess for locking the L-shaped hook portion so as to be able to be inserted and removed from above is formed at the distal end portion. The gist of the invention is that a contact portion with which a pushing operation member when rotating by a desired angle so as to protrude upward from an upper edge of the side panel abuts is protruded.
In a second aspect, the floor panel according to the first aspect is formed in a square shape in a plan view, and a lid panel that is placed over an upper end of the support leg and covers the floor panel with a space above the floor panel, And the height of the side panel is set to be smaller than the distance between the adjacent insertion / removal portions, and the space is set to a size slightly larger than the stack thickness of the four side panels. I do. Further, the floor panel, the side panel, and the lid panel according to claim 2 are made of FRP.
The gist is that it was made.

According to the above technical means, the following effects are obtained. (Claim 1) The return box has a lower end inserted into the insertion / removal section provided at each of the four corners of the floor panel, and the side panel is erected. The upper ends of the adjacent side panels are connected in a rectangular shape in plan view by locking the L-shaped hooks. In this state, the target content is stored and transported to a desired location. Then, while the four side panels are connected, the push operation member is rotated by a desired angle so as to protrude upward from the upper edge of each of the pair of side panels facing each other, and the push operation member is brought into contact with the contact portion. The operator further pushes each of the moving operation members artificially from above. Then, the push operation member and the locking member are rotated around the shaft attaching portion while the L-shaped hook-shaped integral shape is maintained, and the receiving concave portion of the locking member is locked with the L-shaped hook portion. The side panel (intermediate panel) between the pair of left and right side panels can be forcibly pulled out from the insertion / removal portion. Since the lower end of the side panel pulled out in this state is unsupported, it receives the weight of the contents, and the side panel rotates forward with the receiving recess as a fulcrum and forms an opening at the bottom, and the opening Drain the contents from. (Claim 2) The returnable box has a flat, compact storage state in which four side panels are stacked by being pulled out from the insertion / removal portion of the four side panels, and then stacked in a multi-stage form and covered with a lid panel. Change. (Claim 3) The returnable box is made of FRP and has both touch resistance, durability and light weight.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 8 show an embodiment of a returnable box according to the present invention. Reference numeral A is a return box, 1 is a floor panel, 2 is a side panel, 3 is a cover panel, and 4 is a corner upper bracket.

The floor panel 1 is made of FRP, has a rectangular shape (square shape) in plan view as shown in FIGS. 4 and 8, has a rising edge 11 around the periphery, and a pull-in / out portion 21 inside the four corners. Is formed. The floor panel 1 has a rising edge 11 protruding from the peripheral edge of the bottom 1 ', and is fixed over the middle of the supporting legs 5 provided outside the four corners.

The support legs 5 are short L-shaped members as shown in FIG. 4, and are formed of a metal material such as stainless steel or FRP material having excellent corrosion resistance.

The insertion / removal portion 21 is provided on the outer surface of the L-shaped member 21b.
It is formed by projecting from the bottom 1 'so as to secure an L-shaped space 21a at the lower end of the side panels 2, 2 between the rising edge 11 and the inner corner of the corner.

The side panel 2 has a rectangular shape (rectangular shape) when viewed from the front, and is made of FRP like the floor panel 1.
Disassembly / assembly can be performed by pulling out the lower end over the adjacent insertion / removal space 21a.
In addition, the side panel 2 has an insertion / removal portion in which the total height is adjacent to the above-described portion.
The dimensions are slightly smaller than between 21 and 21.

The upper portions of the four side panels 2 are connected by a container upper metal fitting 4 so as not to be overturned. The container upper fitting 4 includes a locking hook 14, a locking member 24, a push operation member 34, and the like.

As shown in FIGS. 1 and 2 and FIGS. 5 and 6, the locking hook body 14 has upper and lower sides of a pair of side panels (described below with reference numeral 12a). Is horizontally inserted along the side panel 12a into a guide fitting 14a provided at the front side so as to be movable back and forth and rotatable in the circumferential direction along the side panel 12a.

The locking hook 14 is connected to the guide fitting 14a.
An L-shaped hook portion (L-shaped hook bar) 14c is bent at the end of the straight rod portion 14b inserted through the hole, and is provided between a guide 14a and a nut 14d provided at the rear end of the straight rod portion 14b. A compression spring 14e is interposed so as to surround the straight rod portion 14b, so that the L-shaped hook portion 14c can always be accommodated in the front view area of the pair of side panels 12a, 12a by the resilience of the compression spring 14e. Has become.

The locking member 24 is a band-shaped plate as shown in FIGS. 1 and 2, and 5 and 6, and is provided at both ends of the outer surface of another pair of side panels (described below with 12b). The intermediate portion is pivotally mounted at the same height as the locking hook body 14 so as to be rotatable in the vertical direction. When the locking member 24 comes into contact with the stopper 6 protruding from the outer side of the shaft attaching portion 100 at the upper edge side end portion of the other pair of side panels 12b, the locking member 24 becomes horizontal and has a front end portion. The side protrudes laterally from the side panel 12b and intersects with the L-shaped hook portion 14c. Reference numeral 7 denotes a stopper (hereinafter referred to as a second stopper) projecting from the upper edge of the side panel 12b opposite to the stopper (hereinafter referred to as a first stopper) with the shaft attachment portion 100 interposed therebetween. ).

The pushing operation member 34 is a band-shaped plate similar to the locking member 24 described above, and is rotatable up and down along the outer surface of the locking member 24 on the shaft attachment portion 100 of the locking member 24. It is installed to become. Further, when the pressing operation member 34 comes into contact with the first stopper 6, the pressing operation member 34 has a length which is horizontal like the locking member 24 but does not protrude laterally from the side panel 12 b (FIG. 5).

The locking member 24 is, as described above, an L-shaped hook portion.
A receiving recess 24a is formed in a corresponding portion intersecting with the portion 14c, that is, a tip portion, for locking the tip of the horizontal bar portion 14c 'of the L-shaped hook portion 14c so as to be able to be inserted and removed from above. As shown in FIG. 6, a pushing operation member 34 is attached to the locking member 24.
24 is rotated to a desired obliquely upper position so as to form an obtuse angle with respect to a portion outside the shaft attaching portion 100, the contact portion 8 with which the pressing operation member 34 comes into contact with the shaft attaching portion 100. The protruding portion is formed at a desired portion on the center side of the side panel 12b.

The contact portion 8 is a projection. When the push operation member 34 is rotated downward in a state where the contact portion 8 is in contact with the projection, the locking member 24 becomes integral with the push operation member 34. Thus, the receiving concave portion 24a can be raised by rotating about the shaft attaching portion 100.

The cover panel 3 is formed in a thin box shape with one side opened by FRP material. When the cover panel 3 is placed over the supporting legs 5, the upper surface of the bottom 1 ′ of the floor panel 1 and the cover panel 3 A space x having a size slightly larger than the thickness of the stack of the four side panels 2 is secured between the upper side and the inner surface. That is, as shown in FIG. 8, the four side panels 2 are arranged between the upper surface of the bottom 1 'of the floor panel 1 and the upper ends of the support legs 5.
Dimensions slightly larger than the stack thickness of
When the cover panel 3 is placed over the upper end of the side panel, a part of the side panels 2 in the stacked state can be hidden by the skirt portion 31 so that the side panels 2 are not visually recognized from the outside. I have.

The floor panel 1, the side panels 2,
The lid panel 3 may be arbitrarily reinforced at the edge portion or the middle portion thereof with a metal reinforcing bar (corrosion-resistant stainless steel or the like).

The returnable box A of the present embodiment having the above-described configuration is provided with an L-shaped hook portion 14c by the elasticity of the compression spring 14e.
In the front view area of the side panels 2 and 12a, and the locking member 24 and the push operation member 34 are rotated so as to abut the second stopper 7, and similarly in the front view area of the side panels 2 and 12b. To fit. The height of the four side panels 2 is smaller than the distance between the adjacent insertion / removal portions 21 and 21, and the locking hooks 14 and the locking from the side panels 2, 12a and 12b. Since the member 24 and the push operation member 34 do not protrude from the sides, the four side panels 2 can be stacked on the upper surface of the bottom 1 'of the floor panel 1 as shown in FIG. In addition, the cover panel 3 is placed so as to cover the space above the floor panel 1 over the support legs 5. Therefore, the returnable box A at the time of non-use has the four side panels 2 stacked on the floor panel 1 and the skirt portion 31 of the lid panel 3.
It can be stored in a flat state so as to be covered with.

When transporting the contents, the floor panel 1
The lower end of each of the side panels 2 is inserted into the insertion / removal portions 21 of the first panel 21 to be erected, and as shown in FIG. 1, FIG.
The L-shaped hook portion 14c of the locking hook body 14 is locked in the receiving recess 24a at the tip of the locking member 24 in contact with the stopper 6, and the upper opening portion is further covered with the cover panel 3. As a result, the L-shaped hook portion 14c and the receiving concave portion 24a are securely locked by receiving the elastic force of the compression spring 14e, and the returnable box A is assembled and formed. Then, as shown in FIG.
Is rotated at a desired angle to a desired obliquely upper position so as to form an obtuse angle with respect to a portion outside the shaft attachment portion 100 in the locking member 24, and protrudes upward from the upper edge of the side panels 2, 12b. After that, and the contact portion 8 is brought into contact with the contact portion 8, each of the operators pushes the push operation member 34 downward from the left and right further artificially and rotates it. As a result, the push-moving operation member 34 and the locking member 24 remain in the
, The receiving recess 24 a of the locking member 24 is raised, whereby the side panels 2, 12 a are pulled out of the insertion / removal portion 21. The side panels 2, 12a pulled out in this state are unsupported at their lower ends while being connected to the adjacent side panels 2, 12b, so that they naturally rotate forward in response to the weight of the contents, and Things will be discharged.

The returnable box A of the present invention is placed on a pallet B so that it can be transported by a forklift or the like.
The pallet B need not be used.

In the present invention, the entire floor panel 1, the entire side panel 2, and the entire cover panel 3, which are the components of the returnable box A, are formed of a single FRP material for the purpose of corrosion resistance and light weight. However, an L-shaped member 21b forming the insertion / removal portion 21
Is made of corrosion-resistant stainless steel, the rising edge 11 of the floor panel 1 is made of metal such as stainless steel,
It is free to reinforce appropriate portions of the side panel 2 and the cover panel 3 with reinforcing bars made of stainless steel or the like.

[0025]

As described above, the present invention has the following advantages. (Claim 1) One side panel is raised by a pushing operation of a pushing operation member from above while the four side panels are connected in a rectangular shape in a plan view, and the side face is obtained only by pulling out the insertion / removal portion. Since the container is a returnable box that rotates in the front-rear direction by the weight of the contents while the panel is connected to the adjacent side panel and opens the opening by itself, the side panel remains connected in a rectangular shape in plan view A simple method of simply pushing the push operation member to discharge fluid contents such as granules and powder without impairing the durability of the side panel. A box can be provided. (Claim 2) In addition, the stack 4 when not in use.
By placing the lid panel on the upper end of the support leg so as to cover the side panels from above, the side panels can be stored compactly and flat on the floor panel, taking up space when closing Don't worry. (Claim 3) Further, when the floor panel, the side panel, and the lid panel are made of FRP, it is possible to reduce the weight together with the corrosion resistance, and to be destroyed by the weight of the contents as in the case of wood, for example. Also, there is little risk of causing plastic deformation and the durability can be greatly increased.

[Brief description of the drawings]

FIG. 1 is a front view of a return box according to the present embodiment.

FIG. 2 is a side view of the same.

FIG. 3 is a sectional view taken along a line (3)-(3) in FIG. 1;

FIG. 4 is a perspective view of a floor panel.

FIG. 5 is an enlarged perspective view showing a state where the side panels are connected by a corner upper bracket.

FIG. 6 is an enlarged perspective view showing a state where a side panel is pulled out.

FIG. 7 is a front view showing a state where the side panel is pulled out.

FIG. 8 is an enlarged longitudinal sectional view showing a stacked state.

[Explanation of symbols]

 A: Return box 1: Floor panel 21: Pull-out section 2: Side panel 4: Corner upper bracket 14: Locking hook 14c: L-shaped hook 24: Locking member 34: Pushing operation member 24a: Receiving recess 8: Contact part 3: Lid panel 5: Support leg 100: Shaft attachment part

Claims (3)

[Claims] 1. A floor panel fixed to a middle part of a support leg provided outside of four corners, and a lower end thereof is erected so as to be able to be inserted and removed from an insertion part provided inside four corners of the floor panel. A pair of side panels, and an upper corner metal fitting for connecting the adjacent side panels to each other. An L-shaped hook portion provided at the front end when movable forward and backward, and rotatable in the circumferential direction, and an L-shaped hook portion protruding laterally from a front view area of the side panel; A stopper provided on the same side panel part outside the coaxial attachment part is provided on the outer side both end parts of the panel at the same height as the locking hook body so that the middle part is pivotally mounted and rotatable vertically. When contacted, the tip is on the same side A locking member protruding laterally from the front view area of the face panel and intersecting the L-shaped hook portion, and a pushing operation mounted on the shaft attachment portion so as to be vertically rotatable along the outer surface of the locking member. And a receiving concave portion for locking the L-shaped hook portion so that the L-shaped hook portion can be inserted and removed from above at a distal end portion, and the locking member further has a side surface than the shaft attaching portion. At a desired portion on the center side of the panel, a contacting portion with which the pushing operation member abuts when it is rotated by a desired angle so as to protrude upward from the upper edge of each of the other pair of side panels facing each other is protrudingly provided. A return box characterized by: 2. A lid panel, which is formed in a square shape in a plan view, is placed over an upper end of a support leg, and covers the floor panel above the floor panel with a space therebetween. 2. The panel according to claim 1, wherein the height of the panel is smaller than the distance between the adjacent insertion / removal portions, and the space is slightly larger than the stack thickness of the four side panels. Return box. 3. The return box according to claim 2, wherein said floor panel, side panel, and lid panel are made of FRP.