JPH0575627B2 - - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to wrap-around sleeve transport containers, and more particularly to wrap-around sleeve transport containers, as described above, which are designed to prevent interlocking with adjacent transport containers. The present invention relates to a container end plate fixing device.

BACKGROUND OF THE INVENTION Previous commercially available wraparound sleeve carriers have punched locking tabs on the inner endplate and mating locking tabs on the outer endplate to connect the overlapping endplates. It has a locking hole. To secure the overlapping endplates together, the head of the punch-style locking tab must be inserted through the mating locking aperture in the outer endplate as well as through the aperture in the inner endplate. be. Without such an aperture in the inner endplate, the head of the locking tab would not be able to pass through the locking aperture in the outer endplate. The aperture in the inner endplate is created by a crack left in the inner endplate when the punched locking tab is folded. The profile of these lock tabs below the head portion is designed to leave an opening in the inner end plate wider than the head portion of the lock tab. However, the profile used for these locking tabs leaves a protrusion on the outside of the end plate and
This can sometimes result in engagement with adjacent end plates of other transport containers. If such interlocking of the transport containers occurs, this can cause consumer complaints and can also result in end plates tearing.

OBJECTS OF THE INVENTION The present invention aims to solve the problems of conventional locking devices.

SUMMARY OF THE INVENTION In order to achieve the above objects, the present invention provides a punch-type lock tab which eliminates the protrusion of the above-described punch-type lock tab, while still providing relief means on the inner end plate. A punch-type locking tab is inserted into the aperture in which the outer end plate engages and facilitates return through the inner end plate.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a typical wrap-around sleeve paperboard carrier 10 which employs the punch tab lock construction of the present invention. Fifth
As best seen in the figures, the transport container 10 is formed from a profile 12, which includes a bottom plate 14, side plates 16 and 18, overlapping top plates 20 and 22, dust flaps 24, 24',
26, 26' and 28, 28', end plates 30, 3
0', and end plates 32, 32'. End plate 30
and 30' are of the same shape, and the end plates 32 and 32' are of the same shape. Therefore, only the end plates 30 and 32 and the locking structure thereon will be described in detail.

The end plate 30 includes a fold line 34 that hinges the end plate to the side plate 18, a free edge 36 opposite the fold line 34, and side edges 38 and 40 extending between the fold line 34 and the free edge 36.
The boundaries are determined by The end plate 30 is tapered such that the side edges 38 and 40 move closer to each other as they approach the free edge 36, intersecting at a point.

The end plate 32 includes a fold line 42 that hinges the end plate to the side plate 16, a free edge 44 opposite the fold line 42, and a side edge 46 extending between the fold line 42 and the free edge 44. 48
The boundaries are determined by The end plate 32 is tapered such that the side edges 46 and 48 approach the free edge 44 so that they intersect at a point. Due to this structure, if the transport container is slightly distorted from a rectangular shape for some reason, the end plates 30 and 32
does not protrude beyond the top plates 20 and 22 or the bottom plate 14 and thereby not catch on other transport containers or objects.

End plate 30 includes a pair of first lock tabs 50 that engage a pair of lock apertures 52 on end plate 32 when the end plates are locked together.
The base of the first locking tab 50 is aligned with the fold line 54, but the tab base itself is not folded. Tab 50 tapers toward its free end 56 to facilitate insertion of the tab into first lock aperture 52. The width of the first locking aperture 52 is somewhat greater at its base than the width of the first locking tab 50.
can be fully inserted into the opening.

The end plate 32 has a pair of second punch-type locking tabs 5.
8 which engage a pair of locking apertures 60 on end plate 30 when the second end plates are locked together. Each of the second punch-type locking tabs 58 includes a head portion 62, a neck portion 64 and a body portion 66.
Consists of. The base of the main body portion 66 has skip cuts 68 extending parallel to the fold line 42 (a portion where the thickness of the paperboard is completely cut from top to bottom, and a portion where the paperboard is not cut at all or only a cut is made immediately adjacent thereto). Then, there is a part where the thickness is completely cut up and down, right next to that, and a part where the thickness is not cut at all or only cuts are made, in that order, and the complete cut part continues intermittently. ) is connected to the end plate 32 via a hinge. The body portion 66 is tapered in the direction of the neck portion 64, and side edges 70 of the body portion 66 are linear and extend from near the base to the neck portion 64. The neck portion 64 is hingedly connected to the body portion by a skip cut 68 and a skip cut 72 extending parallel to the fold line 42. Side edges 74 of the neck portion extend perpendicular to the fold line 42. The head portion 62 has a pair of inner edges 76 extending from the neck portion and parallel to the fold line 42.
and a generally semicircular outer edge 78 extending between the inner edge 76 and the outer edge 76 .

Adjacent to each side of the neck portion 64 are a pair of raised tabs 80. The embossed tab extends between the neck portion 62 and the body portion 66 of the second punch lock tab 58. Each embossed tab 80 includes a portion of the body portion edge 70, a neck portion edge 74, an inner edge 76 of the head portion, a cut 82 extending in line with the inner edge 76, and an outer edge of a skip cut 82 and the body portion. The boundary is defined by a skip cut 84 extending between the edge 70 and the edge 70.
When folded back, the embossed tab 80 has an aperture that is wider than the head of the second punch lock tab 58.

The second lock apertures 60 on the end plate 30 are each bounded by a convex inner edge 86, a straight outer edge 90, and a plurality of side edges 88 converging toward the straight outer edge 90. A pair of outwardly extending cuts (or notches) 92 are formed at the junction of the inner convex edge 86 and the side edge 88. Each aperture 60 is wider than the neck portion 64 of the second punched lock tab at the juncture of the inner convex edge 86 and the side edge 88, but is wider than the neck portion 64 at the juncture of the side edge 88 and the outer edge 90. Narrower than the part. The notch 92 is the opening 60
The second punch-type locking tab 58 extends wider than the width of the head portion 62 thereof.

The sequence of locks for locking end plates 30 and 32 together is to engage a first lock to begin engagement of the end plates, then engage a second lock to complete engagement of the end plates. let
As shown in Figure 1, the dust flaps 24, 26
and 28 are folded inward. The end plate 32 is then folded inwardly overlying the dust flap as shown in FIG.

The end plate 30 is folded inward so that a portion of the end plate 30 becomes the end plate 32.
The outer portion of the end plate 30 is folded back along the fold line 54 to form the first locking tab 50.
protrude inward. The first locking tab 50 is inserted into the first locking aperture 52 of the endplate 32 and the outer portion of the endplate 30 is folded inwardly to overlie the endplate 32 as shown in FIG. At times, the first lock tab 50 is engaged under the end plate 32.

Prior to folding the outer portion of the end plate 30 over the end plate 32, the second punched locking tab 58 is folded outwardly from the end plate 32 along the skip cut line 68, thereby securing the end plate 32. The punched locking tab passes through the outer portion of the end plate 30 as the outer portion of the plate 30 folds inward and overlies the end plate 32. The outer portion of the end plate 30 is folded to form the end plate 32.
After overlapping, the head 62 of the punched locking tab 58 is inserted into the second locking aperture 60 of the end plate 30.
and is fitted through the aperture in the end plate 32 left by the punched locking tab 58. The embossed tab 80 is folded inwardly along the skip cut line 84 when the punched lock tab head 62 contacts the tab 80.
Therefore, insertion of the punched lock tab and engagement of the punched lock tab 58 with the lock aperture 60 is not obstructed.

As shown in FIG. 3, after the locking operation is completed, the punched locking tab 58 has no protrusions that may engage or catch other containers or objects. This is the embossed tab 8 on the end plate 32.
This is the result of adding 0.

7 and 8 illustrate conventional second punch style locking tabs 94 and 96. These second punch lock tabs include projections 98 and 100 on each side of the punch lock tab neck portion. According to this structure, when the second punch-type lock tab is inserted into the second lock opening, the projection 98
and 100 appear on the outside of the transport container, which may cause it to catch on other transport containers or objects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a transport container prior to locking operation using the locking device of the present invention; FIG. A partial perspective view of the transport container of FIG. 1, shown in FIG.
A partial perspective view of the transport container of FIG. 1 showing the overlapping end plates; FIG. 4 shows the inner portion of the end plates of the transport container with the end plates shown in FIG. 3 fully engaged; Figures; Figure 5 is a plan view of the manufacturing form plate for the transport container of Figure 1; Figure 6 is a fragmentary view of the manufacturing form plate to show in more detail the adjacent portions of the punched locking tab and end plate; FIG. 7 is a fragmentary view of one conventional punch-type locking tab; and FIG. 8 is a fragmentary view of another conventional punch-type lock tab.
FIG. 3 is a fragmentary view of two punch-type lock tabs. Explanation of symbols of main parts, 10...Transportation container, 1
2... Shape plate, 14... Bottom plate, 16, 18... Side plate, 20, 22... Top plate, 30, 30', 32,
32'... End plate.

Claims (1)

Claims: 1. A wrap-around sleeve carrying container, comprising: a bottom plate, two side plates, a top plate and opposite ends of the side plates along a fold line for closing the terminal end of the carrying container. comprising two sets of end plates joined via a hinge, each set of end plates comprising a first end plate and a second end plate, the first end plate comprising two spaced apart locking tabs; a first locking means and a second locking means comprising two spaced apart locking apertures, said first end plate extending outwardly from opposite sides of each locking aperture at its widest portion; The second end plate further includes a notch extending in a direction substantially parallel to the fold line, and the second end plate has a notch extending substantially parallel to the fold line.
a first locking means comprising two spaced apart locking apertures suitable for receiving tabs, and a second locking means comprising two spaced apart punched locking tabs, each punched locking tab having said Second
a head portion adapted to be punched through one of the lock apertures and hinged at its base to said second end plate along a skip cut and connected to said head portion through a neck portion; a tapered body portion, the width of the neck portion being less than the width of the second lock aperture at its widest portion, and the width of the head portion being less than the width of the second lock aperture at its widest portion; less than the sum of the width of the lock aperture and the length of the notch extending therefrom, the tapered body portion includes a plurality of edges converging from near the base of the body portion to the neck portion. Equipped with
The head portion has a first opening near the second opening.
a plurality of edges configured to engage the inside of the end plate and extending outwardly from the neck portion to prevent the punch tab from being pulled out of the second aperture; a second end plate includes two raised tabs on each side of each neck portion to facilitate insertion of the punched tab into the second aperture, the raised tabs forming a converging edge of the body portion; and an outwardly extending edge of the head portion, the relief tab extending along a skip cut extending from the converging edge of the body portion toward the outwardly extending edge of the head portion. hingedly coupled to two end plates, and the first end plate at least partially overlaps the second end plate, the first locking tab being engaged within the first aperture; The container wherein the second male punch tab extends over the first end plate and engages within the second aperture to lock the end plates together. 2. The wraparound transport container according to claim 1, wherein each of the pair of skip cuts connecting the raised tab to the second end plate is spaced outward from the head portion and converges. A transportation container characterized by: 3. In the wrap-around transport container according to claim 1, each of the end plates tapers from a fold line joining the end plate to the side plate to a free edge opposite the fold line. A transport container characterized by: