JPH0775876B2 - Assembling device for connecting containers - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly of a connecting container in which two intermediate walls whose upper ends are connected to each other through a fold line are one of peripheral walls, and a pair of container parts are formed on both sides of the intermediate wall. It relates to the device.

[0002]

2. Description of the Related Art Assembling apparatuses for mechanically assembling a single container from a blank are known. However, if the above-mentioned container has a small capacity and a small size, the product packed in the container is extremely difficult to handle in distribution.

In order to eliminate such inconvenience, the applicant of the present application has proposed that a pair of intermediate walls, the upper ends of which are connected to each other through a crease line, extend in opposite directions to the lower edges of a pair of intermediate walls folded over each other. Has already proposed a connecting container in which a pair of bottom plates are continuously provided, and a pair of end walls and side walls having a double structure are provided on the outer peripheral three sides of the bottom wall (Japanese Patent Application No. 2-112621).

[0004]

By the way, in the above-mentioned connecting container, it is necessary to fold a pair of intermediate walls along the fold line and then to bend the end wall and the side wall one after another. It cannot be mechanically assembled using the existing assembling apparatus, and the assembling is a manual work, and there is a problem that it takes a lot of time and labor.

SUMMARY OF THE INVENTION The present invention has a technical problem to solve the above problems and to automate the assembling of a connecting container having two containers.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a pair of bottom plates are connected to the outer edges of a pair of intermediate walls continuously provided via a fold line. A pair of end walls are connected to each other on three outer sides of each bottom plate via fold lines, and folding pieces are connected to both end edges of the side wall and the intermediate wall via fold lines. An apparatus for assembling a connecting container, wherein two blanks, each having an intermediate wall as one of peripheral walls, are formed on both sides of an intermediate wall, which is folded over from each other by blanks in which inner end walls are connected to each other via fold lines. , A receiving member that supports the blank below the peripheral portion, a chevron guide provided so as to face the pair of intermediate walls above the blank positioned on the receiving member, and the chevron guide of the chevron guide via the blank. Can be freely retracted downwards, and can be paired with A folding bend projecting member wall in Yamagata, said by pinching from both sides folded pair of intermediate walls Yamagata
A clamp device capable of descending after a projecting member retracts from a pair of intermediate walls , a push-down member that abuts the upper surface of the blank and presses down the blank together with the clamp device, and a blank that moves downward. The folding guide for bending the side wall, the end wall and each folding piece along the fold line, and the folding device for folding the inner end wall to a position overlapping the inner surface of the end wall are adopted.

[0007]

In assembling the connection container, the blank is placed and positioned on the pair of receiving members, and then the pair of intermediate walls are bent along the fold line by the relative movement of the projecting member and the chevron guide. , Fold the folding pieces at both ends inward by contacting the folding guides. After bending the pair of intermediate walls by a predetermined angle, one intermediate wall is clamped from both sides by the clamp device and the protruding member is retracted from below the blank to the periphery.

The clamp device is moved downward to push down the blank, the side wall and the pair of end walls are raised inward, and the inner end wall is moved to the end wall by the operation of the folding device in a state where the side wall and the end wall are erected 90 °. Fold it toward the inner surface of.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a blank 1 forming a connected container, which is made of cardboard or other cardboard. The blank 1 is composed of two box forming sheet pieces A and B which are continuously arranged via a fold line 2.

The box forming sheet pieces A and B are respectively provided on the bottom walls 3a and 3a.
Intermediate walls 4a and 4b, side walls 5a and 5b, and a pair of end walls 6a and 6b are connected to the outer periphery of b through a fold line 7.

A fold line 8 is formed on both ends of the intermediate walls 4a and 4b.
A pair of folding pieces 9a and 9b are provided through the above-mentioned structure, an engaging hole 10 is formed in one of the sheet pieces B, and an engaging hole 10 is formed inside the end wall 6a of the other sheet piece A. The connecting pieces 11 to be joined are continuously provided via a fold line 12.

Further, a pair of folding pieces 14a and 14b and an inner wall 15 are provided on the outer circumferences of the side walls 5a and 5b through a fold line 13.
a and 15b are continuously provided, and a pair of arcuate cuts 16 are formed at both ends of the inner side walls 15a and 15b to form a corner piece 17
a and 17b are provided, and the insert pieces 19a and 19b are connected to the end edges of the respective corner pieces 17a and 17b through the fold lines 18.

On the other hand, inner end walls 21a and 21b are connected to the end edges of the end walls 6a and 6b through two fold lines 20, and a fold line 22 is formed on the outer edges of the inner end walls 21a and 21b. The folding pieces 23a and 23b are connected to each other via the interposition. Also, the end wall 6a,
A cutout portion 24 is formed at the outer end portion on the fold line 20 in 6b.

The sheet pieces A and B are formed so that the intermediate walls 4a and 4b are continuous with each other.

FIG. 2 is a plan view of an assembling apparatus for assembling the connecting container from the blank 1. This assembling apparatus includes a pair of parallel rails 30 as receiving members for supporting a blank.
The blank 1 which has a rail and is inserted from one end between the rails 30 has a stopper 31 provided between the front ends of the rails 30.
Positioned by

Above the blank 1 which is positioned on the rail 30, an elevating frame 32 is provided as shown in FIGS. The elevating frame 32 is vertically moved by a predetermined stroke by an elevating device (not shown) such as a crank mechanism.

At the lower end of the elevating frame 32, the sheet pieces A and B are placed.
A pair of pressing plates 33 as pressing members for pressing down the bottom walls 3a, 3b of the blank 1 are attached, and the pressing plates 3 for pressing down the inner side walls 15a, 15b of the blank 1 are attached to the upper side of each pressing plate 33.
4 is attached. In addition, a pair of left and right guides 35 are provided inside each pressing plate 33 so as to face each other in the front-rear direction.

The guide 35 is inclined with an upward slope toward the tip, and the guides 35 facing each other in the front and rear are arranged in a mountain shape. The chevron-shaped guide 35 cooperates with a protrusion member described later to form a pair of intermediate walls 4a and 4b of the blank 1.
Fold it along the crease line 2 into an inverted V shape.

The elevating frame 32 also supports a clamp device 36 which holds a pair of intermediate walls 4a and 4b bent in an inverted V shape from both sides.

As shown in FIGS. 8 and 9, the clamp device 36 has a pair of holding arms 37, and the holding arms 3 are provided.
The upper end of 7 is rotatably attached to the elevating frame 32 via a pin 38, and a rotatable roller 39 provided at the lower end of each support arm 37 is arranged between the left and right chevron guides 35.

Further, a lever piece 40 facing the other holding arm 37 is integrally provided at the upper end portion of the holding arm 37, and a long hole 41 is formed at the tip end portion of the lever piece 40 that overlaps each other, and each long hole 41 is formed. A rear end of the rod 42 is slidably inserted, an arm 43 provided below the rod 42 is fixed to the elevating frame 32, and the arm 43 and the rod 42 are connected by a pair of parallel links 44.

Further, one end of the spring 45 is connected to the pin connecting the one link 44 and the rod 42, and the other end of the spring 45 is connected to the arm 43. When the rod 42 moves up to a predetermined height, the pulling direction of the rod 42 is switched, and the spring 45 opens and closes the pair of holding arms 37 by the action of moving the rod 43 upward or downward.

Here, the rod 42 is restricted in its upward movement amount by abutting against the first stopper 46 provided on the elevating frame 32, and the pair of holding arms 37 is provided with the roller 39 at the lower end.
Are held in a closed state, approaching. Also, the rod 42
The pair of holding arms 37 is held in an open state by the abutment of the tip of the screw 47 provided on the arm 43 with the arm 43.

It should be noted that the pulling direction of the spring 45 can be switched by an upper stopper 48 provided with the screw 47 in its ascending path during the ascending of the elevating frame 32 as shown in FIG.
In addition, a contact piece 49 provided at the tip of the rod 42 is brought into contact with a folding piece bending guide 52, which will be described later, while the elevating frame 32 is descending.

As shown in FIGS. 3 and 4, a pair of support shafts 50 and 5 are provided below the pair of rails 30 and 30, respectively.
0 is provided in parallel with the rail 30, and each support shaft 50 supports the lower portions of the four support plates 51a, 51b, 51c, 51d. Each support plate 51a, 51b, 51c, 51d
The inner upper part of the is an inclined surface (a), and the vertical surface (b) is provided below the inclined surface (a). The distance between the vertical surfaces (b) of the support plates facing each other on the left and right is substantially equal to the width dimension of the bottom walls 3a and 3b.

A folding piece folding guide 52 for folding the folding pieces 9a, 9b of the intermediate walls 4a, 4b inward is provided between the upper portions of the two inner supporting plates 51b, 51c, and the folding piece folding guides are provided. An arm 53 that supports 52 is fixed to one support plate 51.

Here, the folding pieces 9a of the intermediate walls 4a and 4b,
One of the pair of left and right folding piece bending guides 52 for folding the 9b abuts on the abutting piece 49 when the elevating frame 32 descends, and serves to close the clamp device 36.

Below the folding piece folding guide 52, a pair of projecting members 54 for bending the pair of intermediate walls 4a and 4b with the chevron guide 35 into an inverted V shape are provided. As shown in FIG. 4, the protruding member 54 has a V-shaped front surface, and the rear end portion of the protruding member 54 has two inner supporting plates 5 with pins 55 interposed therebetween.
It is swingably supported by 1b and 51c, and the tip end thereof can be retracted below the chevron-shaped guide 35.

The projecting member 54 is swung by the driving device 56, and when swung inward, the fold line 2 between the pair of intermediate walls 4a and 4b of the blank 1 supported on the rail 30 is formed.
The tip end faces.

Here, the driving device 56 connects one end of the first link 57 to the rear end of the projecting member 54, and provides a long hole 58 at the other end of the first link 57. Insert the pin 60 provided at the tip of the lever 59, and
A spring 61 is provided between the spring and the protruding member 54.

The four support plates 51a, 51b, 51
A first drive shaft 62 arranged in parallel with the support shaft 50 is rotatably supported by c and 51d, a lever 63 is fixed to the first drive shaft 62, and the tip of the lever 63 and the lever 59 are fixed. The rear end is connected by the second link 64, and the first
By the rotation of the drive shaft 62, the projecting member 5 centering around the pin 54
4 is rocked.

By the way, the elongated hole 58 formed in the first link 57 is necessary for operating the flap folding device which will be described later in a timely manner. When 59 is swung in the direction of the arrow in FIG. 4, the pin 60 moves along the elongated hole 58. At this time, the spring 61 is stretched, and the spring 61 causes the protruding member 54 to swing outward. In order to prevent the swinging, a key member 65 is fixed to the inner surface of the support plate 51b, a stopper member 66 is vertically movably supported along the key member 65, and a thickness formed at the upper end portion of the stopper member 66. The pin 6 provided on the side surface of the protruding member 54 on the meat portion 67
8 are engaged.

On the back side of the stopper member 66, the protrusion 6 is formed.
9 is provided, and the protrusion 69 is engaged with the upper surface of the tip of the lever 70. A central portion of the lever 70 is swingably provided on the support plate 51b via a pin 71, and a wire 72 is connected to a rear end portion of the lever 70.

The wire 72 is pushed and pulled by a pulling device (not shown), and the stopper member 66 is raised by pulling the wire 72, and the engagement between the thick portion 67 and the pin 68 is released. Further, by pulling the wire 72, the stopper member 66 descends.

The four support plates 51a, 51b, 51
As shown in FIG. 5, the end walls 6 of the blank 1 are provided on the outer upper portions of the two inner supporting plates 51b and 51c of the c and 51d.
End wall bending guides 74, 74 for bending a and 6b inward are fixed. The upper ends of the end wall bending guides 74, 74 are lower than the upper surface of the folding piece bending guide 52.

The four support plates 51a, 51b, 51
As shown in FIG. 3, an engaging piece for preventing the blank 1 from moving in the upward direction by engaging with the cutout portion 24, as shown in FIG. 3, in the inner lower portions of the two outer supporting plates 51a and 51d among the c and 51d. 75 are supported. As shown in FIG. 6, the engagement piece 75 has a support piece 76 on the back surface, the support piece 76 is swingably supported by the support plate 51 a via a pin 77, and is inwardly moved by a spring 78. It has a protruding property.
In order to make the amount of protrusion constant, a bolt 79 is attached to the support piece 76.
A stopper pin 80 with which the tip of the bolt 79 abuts is provided on the support plate 51a.

Further, as shown in FIG. 7, a corner portion of an L-shaped arm 81 is swingably supported via a pin 82 at the inner lower portions of the two outer support plates 51a and 51d, and the arm 81 is supported. A receiving claw 83 that receives the bottom walls 3a and 3b is fixed to one end of the. Further, a spring 85 for urging the arm 81 in a direction in which the arm 81 engages with a pin 84 provided on the support plates 51a and 51d is connected to the other end of the arm 81.

When the arm 81 is engaged with the pin 84, the receiving claw 83 is held so as to project inward from the inner surfaces of the support plates 51a and 51d.

An engaging pin 86 is provided on the arm 81, and the engaging pin 86 can be engaged with a tip end portion of a lever 87 provided on the first drive shaft 62, and the lever 87 is engaged. By pressing the dowel pin 86, the receiving claw 83 is held in a state of being positioned outside the inner surfaces of the support plates 51a and 51d.

The bottom plates 3a, 3
When b is supported, the end walls 6a, 6b are held upright at 90 °, and the inner end walls 6a, 6b connected to the end walls 6a, 6b are provided outside the inner support plates 51b, 51c. It is further bent inward by 90 ° by the first folding device 88.

FIG. 5 shows the details of the first folding device 88. This first folding device 88 fixes one end of a U-shaped arm 89 to the first drive shaft 62 and the other end of the arm 89. One end of a link 91 is rotatably connected via a pin 90, and the other end of the link 91 is connected to an upper part of a support piece 93 provided on the back surface of the folding plate 92 via a pin 94. Further, the lower part of the support piece 93 and the upper part of the H-shaped link 96 whose central portion is supported by the support piece 95 attached to the support plate 51b are connected by a pin, and the lower part of the link 96 and the support piece 93 are connected to the spring 97. The projecting piece 98 provided on the upper portion of the link 96 by being connected with each other is engaged with the back surface of the bending plate 92.

A pair of rails 3 for supporting the blank 1
A pair of side wall bending guides 99 for raising the side walls 5a and 5b of the blank 1 inward are provided between the front and rear portions of 0 and 30 as shown in FIGS. A first folding piece bending guide 100 for raising the folding pieces 14a, 14b of the side walls 5a, 5b inward is provided on the outside of the.

The folding guides 99 and 100 are fixedly arranged, and the upper end of the first folding piece folding guide 100 is located above the upper surface of the side wall folding guide 99.

Below the first folding half-fold guide 100,
A second folding piece folding guide 101 whose upper side inclines inward is provided, and the second folding piece folding guide 101 has an inner end wall 21.
The folding pieces 23a and 23b of a and 21b act so as to be bent outward.

Further, inside the second folding folding guide 101, there is provided an insertion piece folding guide 102 for raising the insertion pieces 19a, 19b of the corner pieces 17a, 17b inwardly.
The upper side of the insertion piece 102 is inclined inward. In addition, the insertion piece folding guide 102 is the first insertion piece folding guide 100.
Is supported so as to be vertically movable along the inner surface of the support member 103 that supports the.

A pair of insertion piece bending guides 1 facing each other on the left and right
A holding plate 104 is provided between 02. The holding plate 104 is fixedly arranged, and the holding plate 10 facing the front and rear
4 is equal to the length of the bottom walls 3a and 3b, and the side walls 5a and 5b raised by the side wall bending guide 99 are connected to the bottom walls 3a and 3b.
Hold 90 ° upright from b. Its sidewall 5a,
Each of the inner side walls 15a and 15b and the corner pieces 17a and 17b, which are connected to the 5b, are bent inward by the second folding device 105.

2, FIG. 18, and FIG. 19 show the second folding device 10.
5 is shown. The second folding device 105 includes the first drive shaft 62
A small-diameter shaft 106 is provided orthogonally to, and an inner side wall bending plate 107 is attached to the central portion of the small-diameter shaft 106. Further, a pair of cylindrical bodies 108 are rotatably fitted to the outsides of both ends of the small-diameter shaft 106, and corner bending plates 109 are fixed to the respective cylindrical bodies 108.

Further, a support shaft 111 is fixed to the tip of an arm 110 fixed to the outer end of each tubular body 108, and the support shaft 111 is rotatably supported by a bearing member 112, and is coaxial with the support shaft 111. The sun gear 114 arranged above is fixed to the bearing member 112, and the gear 113 meshing with the sun gear 114 is fixed to the small diameter shaft 106.

Here, the pair of support shafts 111 extends the fold line 13 between the side walls 5a, 5b and the inner side walls 15a, 15b when the bottom walls 3a, 3b of the blank 1 are supported by the receiving claws 83. The support shaft 111 is arranged on the line, and the support shaft 111 is rotated by the second drive shaft 115.

The assembling apparatus shown in the embodiment has the above structure, and its operation will be described below.

The blank 1 shown in FIG. 1 is placed on the rail 30 from the space between the rear ends of the pair of rails 30 with the sheet piece B first. When the tip of the blank 1 is brought into contact with the stopper 31 to position the blank 1, the elevating frame 32 descends and the pair of holding plates 33 come into contact with the upper surfaces of the bottom walls 3a and 3b,
Press blank 1 down.

When the blank 1 is pushed down by a predetermined amount, the folding pieces 9a and 9b of the intermediate walls 4a and 4b and the side walls 5a and 5b.
B folding pieces 14a and 14b are folding piece folding guides 52 and 1
00, and the folding pieces 9a, 9b,
14a and 14b are raised inward.

After the folding of the folding pieces 9a, 9b, 14a, 14b is started, next, the end walls 6a, 6b are moved to the end wall folding guide 7.
The end wall 6 by the end wall bending guide 74.
a and 6b are raised inward.

At this time, since the folding guide 74 for raising the end wall 6a of the sheet piece A and the folding guide 74 for raising the end wall 6b of the sheet piece B are displaced inward, as shown in FIG. In addition, the end wall 6a of the sheet piece A is the end wall 6 of the sheet piece B.
Raised before b.

When the end walls 6a and 6b are slightly raised, the fold line 2 between the intermediate walls 4a and 4b comes into contact with the tip of the projecting member 54 which stands by therebelow.

When the blank 1 is further pushed down by lowering the elevating frame 32, as shown in FIG. 8, the bottom walls 3a and 3b are lowered with respect to the fold line 2 received by the projecting member 54. As shown, a pair of intermediate walls 4a,
4b is guided by a bending guide 35 provided inside the holding plate 33 and is bent into an inverted V shape.

At this time, the pair of bottom walls 3a, 3b move relatively inward, and when the intermediate walls 4a, 4b are folded by a predetermined amount, as shown in FIG. 9, the intermediate walls 4a, 4b are folded. Since the contact piece 49 of the clamp device 36 contacts the bending guide 52 that bends the pieces 9a and 9b, and the elevating frame 32 further descends, the pair of holding arms 37 swings inward, and the holding arms 37. Thus, the pair of intermediate walls 4a and 4b bent in an inverted V shape are held from both sides.

By the holding of the pair of holding arms 37, the projecting member 54 swings outward and retracts from the pair of intermediate walls 4a and 4b before the pair of intermediate walls 4a and 4b overlap each other.

FIG. 11 shows a state in which the pair of intermediate walls 4a and 4b are securely bent by the clamp device 36,
Before the folding of the intermediate walls 4a, 4b is started, the folding pieces 9a, 9
Since b, 14a, and 14b are first bent inward, each folding piece enters the inside of the end walls 6a and 6b as shown in FIG. Since the sheet piece B is bent before the end wall 6b, the connecting piece 11 is arranged between the folding piece 9b of the other sheet piece B and the end wall 6b.

Further, the clamp device 36 has a pair of intermediate walls 4
At the stage of holding a and 4b from both sides, the inner end wall 21
The folding pieces 23a and 23b of a and 21b contact the first folding piece bending guide 100, and the guide 100 causes the folding pieces 23a and 23b of FIG.
Bend outward as shown in.

The bending of the side walls 5a, 5b and the end walls 6a, 6b gradually increases as the elevating frame 32 descends, and when the side walls 5a, 5b are bent near 90 °, the insert pieces of the corner pieces 17a, 17b are inserted. 19a and 19b face the insertion half-folding guide 102, and the guide 102 causes the insertion half-folding guide 102 of FIG.
As shown in FIG. 3, the insertion pieces 19a and 19b are bent inward.

The pressing plate 3 provided above the pressing plate 33
4 is in contact with the inner side walls 5a, 5b and the inner side walls 15a, 1
Bend 5b outward as shown in FIG.

Further, the folding piece 2 of the inner end walls 21a and 21b.
3a and 23b contact the outer side surface of the second folding piece folding guide 101, and the guide 101 causes the folding pieces 23a and 23b to come into contact.
b is bent outward.

When the elevating frame 32 descends to the bottom dead center,
As shown in FIG. 13, the side walls 5a and 5b are held in a state of abutting against the inner surface of the holding plate 104 and standing upright by 90 °, and the end walls 6a and 6b are supported by the support plate 51 as shown in FIG.
The vertical surfaces (b) of a, 51b, 51c and 51d are brought into contact with each other and held at 90 °.

At this time, as shown in FIG. 16, the receiving claw 83 is held at a position facing the lower surfaces of the bottom walls 3a, 3b, and the bottom walls 3a, 3b are supported by the receiving claw 83. Also,
As shown in FIG. 15, the engagement piece 75 engages with the notch 24 of the end wall 6a, 6b to prevent the blank 1 from moving in the upward direction, and guides the insertion piece 19a, 19b at the time of insertion. do.

When the bottom walls 3a, 3b are supported by the receiving claws 83, the elevating frame 32 rises. When the elevating frame 32 rises to near the top dead center, the screw 47 of the clamp device 36 comes into contact with the upper stopper 48 and stops, and only the elevating frame 32 further rises, so that the pair of holding arms 37 is opened.

Further, as the first drive shaft 62 rotates, the inner end wall bending plate 92 rotates inward, and as shown in FIG.
Bending the inner end walls 21a, 21b inwardly, the end walls 6a,
Inner end walls 21a and 21b are superposed on the inner surface of 6b.

At this time, the folding pieces 23a and 23b of the inner end walls 21a and 21b are, as shown in FIG.
Since the inner end walls 21a and 21b are bent, the folding pieces 23a and 23b overlap the inner surfaces of the side walls 5a and 5b as shown in FIG.

After bending the inner end walls 21a and 21b, the first drive shaft 62 rotates in the reverse direction, the inner end wall bending plate 92 returns to the standby position, while the rotation of the second drive shaft 115 causes the support shaft 11 to rotate.
1 rotates, and as shown in FIGS. 18 and 19, the arm 11
Rotate 0 inward. By the inward rotation of the arm 110, the corner pieces 17a and 17b are turned into the corner bending plate 1.
09 is bent inward, and the insertion pieces 19a and 19b
Are inserted into the notches 24. Further, the rotation of the arm 110 causes the inner side wall bending plate 107 to bend the inner side walls 15a and 15b inward, and the small-diameter shaft 106 supporting the bending side plate 107 rotates by the meshing of the gears 113 and 114, thereby causing the folding. The rotation angle of the curved plate 107 is the corner half-folded plate 109.
Is larger than the rotation angle of the inner wall 15a, 15b and the inner wall 15a, 15b is superposed on the inner surface of the side wall 5a, 5b by the bent plate 107, and the connection container shown in FIG.

Inner side walls 15a, 15b and corner pieces 17
After folding a and 17b, the folding plates 107 and 109 are returned to the original state.

In the case of the embodiment, a pair of intermediate walls 4a, 4b.
In the folding, the chevron guide 35 is moved toward the projecting member 54 to bend the pair of intermediate walls 4a and 4b into an inverted V shape. Alternatively, the protruding member 54 may be moved relative to the chevron guide 35 to bend the pair of intermediate walls 4a and 4b into a chevron shape.

The form of the blank 1 is not limited to that shown in FIG. 1, and the folding pieces 14a, 14 of the side walls 5a, 5b are not limited thereto.
b, inner side walls 15a, 15b, corner wraps 17a, 17
b and folding pieces 23a, 23b of the inner side walls 21a, 21b
It is possible to omit at least one or all of the above.

Also, the folding pieces 9a, 9 of the intermediate walls 4a, 4b.
By folding b between the end walls 6a, 6b and the inner end walls 21a, 21b, the pair of intermediate walls 4a, 4b is held in a folded state, so that the engagement hole 10 and the connecting piece 11 are omitted. You may.

In order to hold the intermediate walls 4a and 4b in the folded state, as shown in FIG.
A slit 25 extending over 4b may be formed, and a slit of a partition plate (not shown) may be engaged with the slit 25 of the intermediate wall 4a, 4b folded in half.

[0075]

As described above, according to the assembling apparatus of the present invention, the pair of intermediate walls is folded in two by the relative movement of the chevron guide and the projecting member, and the intermediate wall is clamped by the clamping device. The blank is pushed down, the side walls and end walls are bent by the bending guides provided in the descending path of the blank, and then the inner end wall is bent by the folding device, so that the connecting container is automatically assembled. It is possible,
A great effect can be brought about in labor saving. Also, Yamagata
A pair of intermediate parts bent in a mountain shape with the guide and the protruding member
The wall is clamped by a clamp device and a pair of intermediate
To retract the protruding member from the wall, the pair of intermediate walls
Accurate folding so that the inner surfaces overlap with each other
Can be a bend. And in that bent state
The side wall and end wall with the folding guide and folding device.
Since the inner wall and the inner wall are bent, the dimensional accuracy is extremely high.
It is possible to form a highly durable connection container.

[Brief description of drawings]

FIG. 1 is a plan view of a blank forming a connected container.

FIG. 2 is a plan view showing an embodiment of an assembling apparatus according to the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is a cross-sectional view showing a folded state of the intermediate wall.

9 is a vertical side view of FIG.

FIG. 10 is a sectional view showing a state in which the protruding member is retracted.

FIG. 11 is a cross-sectional view showing an operating state of the above clamping device.

FIG. 12 is a vertical side view of FIG.

FIG. 13 is a sectional view showing a state in which the side wall and the end wall of the same are completely bent.

FIG. 14 is a cross-sectional view showing a state before the operation of the folding device for the inner end wall of the same.

FIG. 15 is a cross-sectional view showing an operating state of the engaging piece of the above.

FIG. 16 is a cross-sectional view showing an operating state of the receiving piece of the above.

FIG. 17 is a sectional view showing the operating state of FIG.

FIG. 18 is a cross-sectional view showing a folded state of the inner wall and the corner piece of the above.

FIG. 19 is a sectional view taken along line XIX-XIX in FIG.

FIG. 20 is a cross-sectional view showing the blank in the middle of being folded.

FIG. 21 is a cross-sectional view showing the blank in the middle of being folded.

FIG. 22 is a cross-sectional view showing the blank in the middle of being folded.

FIG. 23 is a cross-sectional view showing the blank in the middle of being folded.

FIG. 24 is a perspective view of an assembled state.

[Explanation of symbols]

 1 blank 2 fold line 3a, 3b bottom wall 4a, 4b middle wall 5a, 5b side wall 7 fold line 21a, 21b inner end wall 30 rail 33 retainer plate 35 chevron guide 36 clamp device 54 projecting member 74 end wall bending guide 88 number 1 folding device 99 side wall folding guide 100 first folding piece folding guide 101 second folding piece folding guide

Front page continuation (72) Inventor Takahiro Okuda 1-1-7 Uchisaiwaicho, Chiyoda-ku, Tokyo Rengo Co., Ltd. Tokyo branch office (56) Reference JP-A-2-106333 (JP, A)

Claims (1)

[Claims] 1. A pair of bottom plates are continuously provided to the outer edges of a pair of intermediate walls that are continuously provided via a fold line, and a side wall and a pair of end walls are provided on the outer peripheral three sides of each bottom plate. The blanks are connected to each other via fold lines, the folding pieces are connected to both end edges of the intermediate wall via fold lines, and the inner end walls are connected to the end edges of each end wall via fold lines. A receiving device for supporting a blank below a peripheral edge of the connecting container, wherein two containers are formed on both sides of an intermediate wall to be folded, the intermediate wall being one of the peripheral walls. And a mountain-shaped guide provided above the blank positioned to be opposed to the pair of intermediate walls, and can freely project and retract below the mountain-shaped guide through the blank, and the pair of intermediate walls cooperates with the mountain-shaped guide. The projecting member that bends into a chevron and the pair of intermediate walls that are bent into a chevron. Hold it from both sides so that the protruding member
Clamping device capable of descending after retreating from the pair of intermediate walls , push-down member that abuts the upper surface of the blank and pushes down the blank together with the clamping device, side wall, end wall and each folding of the blank that moves downward. An apparatus for assembling a connected container, comprising: a folding guide that bends a piece along a fold line; and a folding device that bends an inner end wall to a position overlapping an inner surface of the end wall.