CN1039218C - Self-locking box - Google Patents

Abstract

The present invention relates to a paper carton for holding cargoes during mailing or transportation. The paper carton is at least provided with an end cover which is fixed to a carton body surface by a fastener and a groove assembly. The end cover can not be opened, and otherwise, the paper carton has obvious damaged marks. When the fastener is folded so as to be inserted into a groove hole, the guide edge of the fastener is provided with a contour of which at least a part has an inclination. The groove hole can be bent so as to form an additional support between the fastener and the groove assembly. Decorative patterns can be printed on the outer surface of a container to be used as a paper carton for packing gifts.

Description

Self-locking box

What the present invention relates generally to is carton, relates to more precisely to be used to store, transmits, mailing, shipping, gives a present or the carton that is used for the various article of splendid attire of other purposes.

The carton that the splendid attire goods is used is known by people in the prior art already.In the simple embodiment therein, those cartons comprise several box plates that form the several side of carton be connected with a pair of and one or more box sides, in order to close the end cap of carton ends.End cap is fixed on the side plate of casing with adhesive tape or analogue usually, to close carton.End cap can have folding wing plate part at extreme end, and this wing plate partly inserts carton, becomes adjacent relation with certain box plate, thereby the sealing of a self-tightening type is provided, but this traditional sealing mode is reliable like that not as close the envelope carton with adhesive tape usually.Carton can be a characteristic with a lot of overlapping case faces also, and these case faces are fixed to one another to form the single-piece end cap with glue.U.S. Patent No. 3,512,823rd, an embodiment of this class cardboard box structure.

For how many reliable closing appliances are provided, once covered along its end and be provided with a little outshot in carton end.This little outshot just is inserted through the slotted eye that matches with it simply, and the length of this slotted eye and little outshot are basic identical and be positioned on the side box plate of carton, and this protrusion sticks with glue after being inserted through slotted eye on the outside face that is connected on side box plate.The U.S. Patent No. 916,503 of authorizing Thompson discloses this structure with the U.S. Patent No. 4,752,028 of authorizing Ogura.

In the available structure of another kind, this little outshot has guide lug, this guide lug. and size is greater than the length of the slotted eye that matches with it, outshot and provide the areal of support of mutual locking thus around the side box plate of groove periphery of matching, its situation is same as the U.S. Patent No. 2,834 of authorizing Struble, 531, the U.S. Patent No. 2,028 of authorizing Lupton, 677, authorize the U.S. Patent No. 1,530,644 of Blandford and the U.S. Patent No. 4 of authorizing Tr.Forbes, 516,718.The end of the little outshot of this lengthening must be folded to its middle part, passes slotted eye thereby little outshot can be inserted into And, and the elasticity of corrugated sheet metal or " memory " then make the end be returned to their initial position, and interlocking is provided therefrom.But, thereby the guide lug of the locking plate of making by this cardboard box structure is not to stretch out from slotted eye to be exposed at the carton outside thus, can only provide rudimentary interlocking structure exactly.Therefore, locking plate can take off lock at an easy rate when the slotted eye with carton meshes, and opens the top case lid under the situation that does not stay any tangible damage vestige.

Therefore, some carton maker seeks help from a kind of snap close and is arranged on this and snap close is fixed on certain case face of carton in being provided with, and passes slotted eye so that snap close can insert Zhi Xiang And, and it is approaching that the snap close that returns is difficult to.Therefore, the unique method of opening the carton end cap is snap close is torn from the junction of snap close and carton side box plate or to cut off, and will cause tangible damage vestige like this.The contour shape of this class boxboard can be that rectangle (is authorized the U.S. Patent No. 4,830,270 of Holmes, authorized the U.S. Patent No. 3,949,931 of Hall; Authorize the U.S. Patent No. 1,470,141 of Bryson; Authorize the U.S. Patent No. 1 of Morey, 108,464 and the U.S. Patent No. 636,806 of authorizing Johnstone), crescent (U.S. Patent No. 3,451,535) shape of gradient or slightly, but they still have flat guide lug and (authorize the U.S. Patent No. 3 of Farquhar, 463,066 and the U.S. Patent No. 4,471,902 of authorizing Skaggss).But when the middle part was folding, it all was straight guide lug that these snap closes have formed in the end of snap close, caused difficulty for thus the insertion of snap close.In addition, in the insertion stage, the double-deck guide lug of the snap close that folds can separate inevitably slightly, and before snap close was inserted through slotted eye, this can cause undesirable conflict again between snap close and slotted eye.

Therefore, the purpose of this invention is to provide a kind of improved self-locking box.

Another object of the present invention provides a kind of can the assembling easily and promptly, is used for the self-locking box of article-containing.

A further object of the present invention provides a self-locking box structure with collapsible buckle structure, this buckle structure can be inserted through the slotted eye that matches with it on the carton at an easy rate, also can or be positioned at making on the snap close with the separation of folding grip tab simultaneously and insert the difficulty that becomes and reduce to minimum with conflict face slowly.

A further object of the invention provides a kind of like this cardboard box structure, and in this structure, the carton that assembles can not be opened, unless cut off the other parts of snap close or carton, can cause tangible damage vestige thus.

Except the foregoing invention purpose, those skilled in the art can be well understood to other purpose of the present invention from following disclosure.

Comprise many interconnecting by carton of the present invention to form case face and an end cap of carton, this end cap links to each other to close an end of carton selectively with in the above-mentioned casing face first, and has a wing plate, this wing plate when the end of end cap enclosed carton, stretch into carton with occupy with above-mentioned casing face in second position adjacent, described carton is characterised in that:

A slotted eye that is positioned on the end cap;

One and second casing face bonded assembly snap close, this snap close is adjacent with the position that is occupied by slotted eye when end cap enclosed carton end;

Described snap close has a fold line, and this fold line defines a locking plate that is used for inserting slotted eye;

Described locking plate has a middle part and a fold line, and this fold line defines selectively folding, the front portion to place along described middle part, and this fold line has formed the leading edge of a folding locking plate thus, and,

Its anterior folding like this locking plate is aimed at like this, made it be passed slotted eye and to be entered carton interior by leading edge, this front portion partly launches to engage with end cap with the terminal with the front portion in carton, and this joint can stop snap close to be return from slotted eye like this;

Described end cap is locked on second casing face thus, to form the osed top carton.

In addition, sustain damage with regard to the full wafer carton half-blank of detectable carton in case the present invention also provides a kind of, this half-blank comprises:

The rectangular box dignity and the side of two pairs of arranged alternate, they link to each other with first fold line parallel to each other;

A pair of end cap, each end cap are used with vertical and parallel each other second fold line of above-mentioned first fold line and are linked to each other with described casing face;

At least one this end cap has a wing plate, and this wing plate is from extending with described casing face junction opposed edges, and can be folding with respect to end cap along a fold line parallel with described second fold line;

A groove that is positioned on the described wing plate; And

A snap close, it uses three fold line parallel with described second fold line to link to each other with the casing face flexiblely, is not connected with end cap on this casing face;

Described snap close is included in the root that the locking plate place stops, and this locking plate has a middle part and an anter, and described anter links to each other with the middle part from the leading edge extension at middle part and by the snap close fold line parallel with the 3rd fold line; And

Described snap close is with respect to the wing plate setting of extending from an end cap, like this when anter is folding to middle sheet, thereby form the guide lug of snap close along the snap close fold line, and when the snap close that folds is inserted through the slotted eye of the carton made from half-blank, anter is returned to a certain position in carton, so that the part of anter is withstood the surface and the end cap that links to each other with wing plate of wing plate

Thus, the described end cap of carton just is locked on the casing face of carton and can not takes out, unless cut off snap close or can cause the method for apparent damage vestige with other.

Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, among the figure:

Fig. 1 is a plan view, and its expression is used to produce the carton half-blank of carton according to a first advantageous embodiment of the invention;

Fig. 2 is the partial enlarged view of the semi-finished snap close of carton shown in Figure 1, and it expresses the gradient of the preceding cramp that constitutes snap close;

Fig. 3 a to 3c is a partial view, and the carton that expression is made with the half-blank of Fig. 1, and the priority process that has explained through diagrams and closed and lock the carton end cap are from being convenient to illustrative purposes, with the local disconnection of Fig. 3 c;

Fig. 4 a to 4c is the partial view of carton shown in Fig. 3 a to 3c, the another kind of mode that they have explained through diagrams and closed the carton end cap but will the permanent embedding of snap close by the priority process;

Fig. 5 is a plan view, and its expression is used to produce the carton half-blank of carton according to a second, preferred embodiment of the present invention;

It is partial view that Fig. 6 a leads 6b, the priority process that its expression will be closed with the carton that half-blank shown in Figure 5 is made.

Fig. 7 is a partial view, and its expression is according to the carton of the 3rd preferred embodiment of the present invention;

Fig. 7 a and 7b represent to close the priority process of carton shown in Figure 7, for convenience of explanation, and with the local disconnection of Fig. 7 b;

Fig. 8 is a partial view, explained through diagrams be positioned at carton slotted eye on the end cap wing plate through improved pattern;

Fig. 9 is the open circuited view that is used for illustration purpose of a part, and its expression is according to the carton of the 4th preferred embodiment of the present invention, and this carton is mainly used in puts the elongate articles that is similar to garment bag;

Figure 10 and 10a are partial views, and expression is according to the carton of fifth preferred embodiment of the invention.

At first referring to Fig. 1, the carton half-blank that the general expression of 15 among the figure is shaped with cross cutting or other method as watt ridge paper or similar material by suitable material.Carton half-blank 15 comprises a plurality of case faces of difference to some extent, and these case faces are hacked groove by some and limited, and these to hack groove be with being that the mode that those skilled in the art were familiar with forms on cardboard when the shaping half-blank.These different case faces comprise that both sides are connected with the bottom surface 17 of a pair of side 18 and 19, and one is crossed the end face 20 of hacking groove 16a and side 19 adjacency.The aerofoil 21 of gummed usefulness is crossed and is pressed and smooth groove 16b and be connected with the opposite side of bottom surface.

Two end caps 24 with 25 with the two ends of bottom surface 17 Xiang Lian And make it to distinguish with hacking groove 16c and 16d.A pair of angle blade 26 is adjacent with the both sides of end cap 24, and this angle blade is used the line of cut vertical with hacking groove 16c 27 Fen Kai ， And with end cap and demarcated with end cap.Each angle blade 26 again further with constitute the Yan Xian And hack groove 16c limit side 18 and 19 first end hack groove 16c ' qualification.A pair of second angle blade 27 in the same way the opposite side of carton half-blank 15 and end cap 25 Xiang Lin And demarcate.

Independent wing plate 29 and 30 is positioned at the end of end cap 24 and 25. Wing plate 29 and 30 has prolonged the length of end cap 24 and 25 respectively.Natural pond end cap 24 with 25 hack groove 16e and 16f respectively with limit end cap hack parallel ， And of groove 16c and the corresponding boundary that defines wing plate 29 and 30 with 16d.Formed long and narrow slotted eye 31 and 32 on wing plate 29 and 30 respectively, they are parallel with the longitudinal size of these wing plates.

Carton 32 shown in Fig. 3 a is by carton half-blank 15 is folding along hacking groove 16,16a and 16b, thus make bottom surface 17, side 18 with 19 and end face 20 become right angle three-dimensional relationship as shown in the figure to make each other.Side 18 (not shown in Fig. 3 a) sticks together the two with glue with aerofoil 21 Chong Die And with gummed, to keep the contour shape of ready-made carton 32.With watt ridge paper or other material manufacture carton half-blank or with the details that this half-blank is produced carton all is that those skilled in the art are familiar with, so need not repeat at this.

From the carton 32 shown in Fig. 3 a that makes therefrom as can be seen, end cap 24 can be folding along the straight line that is formed by groove 16c, so that close the open end 34 of carton selectively.The end cap 25 that to can not see from Fig. 3 a to 3c is provided with too, to make it to close the opposed end of carton 32.When so closing the two ends of carton, the wing plate on the end cap 24 29 is passed in the slit 35 that forms between the limit of the leading edge 36 of end face 20 and each angle blade 26, these limits of angle blade will cut a bit a little, to help forming the slit.This sealing of end cap 24 can make the groove 31 on the wing plate 29 aim at snap closes, and this latches on the end relative with end face 20 and forms.As Fig. 1 and Fig. 2 institute clearly expression like that, snap close is at one of two snap closes of two opposite ends formation of the end face 20 of the preferred embodiment of Fig. 1 to Fig. 3, and has only described such snap close here.But, must be clear that according to the present invention and can only load onto self-locking structure at an end of self-locking box.At this moment, the most handy other permanently seals the other end of carton someway.

Can be clear that from Fig. 1 snap close 38 extends outward the leading edge 36 of end face 20 and meets at right angles with leading edge.Snap close has three visibly different parts, start-up portion is to use hack the root 39 that groove 40 limit parallel with the leading edge 36 of end face 20, it inwardly is provided with from leading edge, and demarcates with two lines of cut 41 (Fig. 1) parallel with hacking groove 40, and this snap close extends out to the forward position of dististyle from section start.Like this, hacking groove 40 just allows whole snap close 38 with respect to end face 20 bendings.

What link to each other with the root 39 of snap close 38 is middle sheet 44.Can be clear that from Fig. 2 middle sheet 44 is to use the perforation line parallel with hacking groove 40 45 to limit De ， And inwardly to insert one section smaller distance of respective distance that ratio is hacked groove from the leading edge 36 of end face 20.

Referring again to Fig. 2, middle sheet 44 from perforation line 45 stretch out and surmount end face 20 leading edge 36 so that its cross with the perforation line with hack parallel the hacking groove 47 and link to each other of groove 40 with anter 46.Like this, anter 46 just can fold with respect to middle sheet 44.At each side of middle sheet 44 and anter 46 inside incision-V-notch 48 all, the top of each breach is all with anter and the separated end coincidence of hacking groove 47 of middle sheet.

Middle sheet 44 and anter 46 have formed the locking plate 50 of snap close 38 together, and breach 48 then helps locking plate is imported in the groove 31 of wing plate 29 by following mode.Can be clear that from Fig. 2 the pointed such outside exhibition of circular arc 52 is all pressed by the limit portion 51 of anter 46, rather than vertical with the leading edge 36 of end face 20.As described below, this outside expansion of limit portion 51 helps locking plate 50 is put into the groove 31 of wing plate 29 together with the breach 48 that forms between middle sheet and anter.

The most handy perforation line 45 shown in Figure 1 (rather than hacking groove) couples together middle sheet 44 with root 39, because in following locking process, these two parts will carry out acutangulate bending.In addition, the perforation line also can be used to replace respectively to connect root 39 and end face 20 hack groove 40 be connected anter 46 and middle sheet 44 hack groove 47.When limiting each burst of snap close 38 with the perforation line, snap close just can be when opening carton be cut off or is separated with carton with other method from carton at an easy rate.The consequence that this destructiveness is unpacked will be discussed below.

Below the use of carton 32 is described with reference to figure 3a, 3b and 3c specially.At first referring to Fig. 3 a, end cap 24 is as shown in arrow 56 along hacking the folding end 34 to close carton of groove 16c, and so, the wing plate 29 of end cap just can enter the slit 35 below the leading edge 36 that tightly is arranged in end face 20.Fig. 3 b represents the final position of top cover 24.At this moment, snap close 38 around hacking upwards beat of groove 40, exposes an original vacancy district 57 that is occupied by the root 39 and the middle sheet 44 of snap close on end face 20 in Fig. 3 a.This vacancy district 57 has exposed the groove 31 on the wing plate 29 of end cap 24 when end cap is in the final position.

When end cap 24 is closed shown in Fig. 3 b fully, by root 39 can be moved to snap close 38 on the position shown in this figure along hacking groove 40 as shown in arrow 60 folding back like that.Meanwhile, middle sheet 44 is folding downwards along perforation line 45, make it to be positioned at respect to end face 20 and almost become vertical position with wing plate 29.At this moment, anter 46 groove 47 of hacking of sheet 44 in connect folds back, so that the outside face of the locking plate 50 that is made of anter and middle sheet moves towards each other, as Fig. 3 b institute not.Being imprinted on two circles 61 on the outside face of anter 46 and middle sheet 44 and 62 position can make these two circles can be aligned with each other when anter and middle sheet fold into the tram of locking plate 50.The desired at this moment folding movement of anter 46 is illustrated by the arrow 63 of Fig. 3 b.Thus, with anter 46 and middle sheet 44 folding papers be folded into the contact condition that reclines mutually, though for the purpose of illustrating, they still have bigger separation in Fig. 3 b.

Thus, Fig. 3 b is folding in that snap close 38 is pressed, so that root 39 upwards bends an angle from end face 20, and with middle sheet 44 and anter 46 folding papers fold and just can understand when making it to be in contact with one another, the hacking groove 47 and at this moment will above the groove 31 of the wing plate 29 of end cap 24, align substantially of locking plate 50 with groove.The breach 48 that stands on locking plate 50 both sides overlaps now each other, thereby defines at the folding cone angle of hacking groove 47 two ends.Apply downward power as shown in arrow 67 by top, the locking plate that folds is entered in the groove 31, and the root 39 of snap close 38 will be returned to the position that flushes with end face 20 basically at this moment at so folding locking plate 50.The outer side 51 of the taper of anter 46 also will help to guide locking plate 50 by groove 31 downwards.

Cross the perforation line 45 of snap close 38 and hack distance between the groove 47 and be greater than respective distance between the terminal 49 of hacking groove 47 and anter 46 at least.This difference makes anter 46 be shorter than middle sheet 44 at least.Consequently, thus when anter was close to middle sheet 44 mutually by direction shown in Fig. 3 b is folding, the terminal 49 of anter 46 was positioned at apart from very near place, the below of perforation line 45.Like this, the terminal 49 of anter 46 just when locking plate 50 is pushed into the position of the full engagement shown in Fig. 3 c, all pushed away groove 31, and at this moment, root 39 aligns with the end face 20 of carton.When the terminal 49 of anter 46 so during the downside by groove 31, the screen resilience of the hinge that is formed by perforation line 41 makes anter 46 move forward along the direction of arrow 68.Like this, the terminal 49 of anter is in herein with regard to the corner 69 that the ， And that no longer aligns with groove 31 is positioned at end cap 24, and wing plate 29 links to each other with end cap.So this location of terminal 49 can be blocked locking plate 50 in the inside of carton 32.Can not extract locking plate 50 out from groove 31 this moment, or the snap close 38 and the remainder of carton are thrown off with other method, unless cut some appreciiable part of snap close, or certain part of damaging carton with other method, so the damage of carton is just very obvious concerning the eyewitness.

Fig. 4 a to 4c is illustrated in addition another kind of alternative application mode of the cardboard box structure 32 described of Biao Shi And of front.In this alternative model, carton can be closed, but can not permanently pin under this state.Please at first referring to Fig. 4 a, represented in the figure is, at first by direction shown in the arrow 70 that anter 46 is folding along hacking groove 47, makes it to be arranged in the below of the sheet 44 of locking plate 50.The direction shown in the arrow 63 is opposite among this mobile and Fig. 3 b of anter 46.Consequently making anter 46, folding (Fig. 4 a) aligns, and its location tables is shown among Fig. 4 b to make it inside face 71 with middle sheet 44.Since anter 46 wanting more or less is as indicated above be shorter than like that in sheet 44, so the terminal 49 of anter is suitably pasted in the inboard, corner that is formed by perforation line 45 below root 39 together.

When locking plate 50 is folded shown in Fig. 4 b, just align with groove 31 on the wing plate 29 by the edge that forms at hack that groove 47 places carry out folding.By with snap close past like that pressing down shown in arrow 72, locking plate 50 can be pushed away groove 31.Locking plate 50 continues to move downward, until root shown in Fig. 4 c, be close to like that end face 20 Wai Biao Mian And align with it.When locking plate 50 is in this position, the terminal 49 of anter 46 moves in carton below groove 31 again, and by hacking the natural screen resilience at the hinge place that groove 47 forms anter 46 is outwards swung original position of sheet 44 from be close to, its action is by 73 expressions of the arrow among Fig. 4 c.But because the side opposite with end cap 24 that anter 46 is arranged in sheet 44 now, when anter was got back to the position that is determined by the screen resilience of being hacked groove 47 formed hinges, the terminal 49 of anter can not engage with any structure position of carton.Like this, can not clamped somewhere in carton at the final position locking plate 50 shown in Fig. 4 c, be in now not by making that the locking plate of folded state is upward through groove 31 thus, then locking plate might be pulled out from groove with the free end of nail or cultrated object and root 39 or edge Nie He And.

Another alternative embodiment of the present invention is illustrated in the carton of being made by this half-blank shown in carton half-blank 77 shown in Figure 5 and Fig. 6 a and the 6b.Remove snap close 78, carton half-blank 77 on arranging to above-mentioned carton half-blank 15 similar ， And and be denoted by like references the semi-finished many key elements of each carton.But each snap close 78 includes only two to substitute in snap close 38 formed three.Two of these of snap close 78 are to hack root 79 that groove vertical line of cut 41 form with two with this by the parallel with it groove 80 of hacking of leading edge 36 inside Duan Ju Li And from end face on end face 20.Hacking with second that groove 82 is connected on the root 79 is anter 81, this hack groove 82 from the inside distance of leading edge 36 less than hacking the inside distance of groove 80.Article two, tapered edges 83 defines the boundary of anter 81 terminals with the shape of arrow.Two fins 86 that are positioned at anter 81 both sides are to form with two cooresponding grooves 87 hacked, this hack groove be used to limit the snap close 78 that is positioned on the end face 20 to hack groove 80 vertical.

Referring to Fig. 6 a and 6b, this figure shows the carton made from carton half-blank 77 partly at 90 places below.In case wing plate 29 Cha Ru And are passed the slit 35 that forms as mentioned above, and end cap 24 is just closed, and snap close 78 residing positions are pointed to the groove 31 of wing plate 29 downwards with regard to the Shang Fang And that makes the arrow that is formed by tapered edges 83 be in end cap.Then shown in the arrow 91 of Fig. 6 a like that, fin 86 is folded back along hacking groove 87, thereby makes it to rely on the outside face of anter 81.Fin 86 is so folding, shown in the arrow 92 of Fig. 6 b, snap close 78 to pressing down, is made arrow move And toward in and passes groove 31 then.In case fin 86 passes groove 31, the natural screen resilience of carton material will make these fins how much return to a certain degree from its original folding position, and this returns the end face 93 of each fin that will be positioned at wing plate 29 belows of end cap 24 and places carton 90 inside.Therefore, the fin 86 that part is launched remains on the anter 81 of snap close on certain appropriate location in the carton, thereby has prevented the unlatching once more of end cap 24, unless cutting or with some other position of other method damage snap close 78 or carton.

The third embodiment of the present invention is illustrated among Fig. 7,7a and the 7b, and snap close 97 wherein forms on the end face 20 of carton, and its mode is similar to the locking plate 38 shown in Fig. 3 a.Snap close 97 comprises that an one end links to each other the root 98 that the other end links to each other with middle sheet 99 with end face 20 with hacking groove.And anter 100 is crossed another and is hacked groove and link to each other with the other end of middle sheet 99.Like this, anter 100, middle sheet 99 and root 98 have just formed the appearance that locking plate 50 among Fig. 3 a to 3c as the aforementioned folds back into folding like that.

The difference of snap close 97 and snap close 38 is that it has the lateral plate 103 of each side 104 horizontal expansion of a pair of therefrom plate 99.The position of these lateral plates 103 is with adjacent at the V-shaped groove 48 of the both sides of middle sheet 99 and anter 100 formation, and at the V-shaped groove place, middle sheet is connected to each other by the groove of hacking that these two are separated with anter.Each lateral plate 103 all links to each other with middle sheet 99 by hacking groove 105, thereby has formed the extension of the corresponding edge 104 of middle sheet.

The utilization of the 3rd embodiment is described referring now to Fig. 7 a and 7b.At first please see Figure 7a, can find out from this figure, it is folding forward that each lateral plate 103 is all hacked groove 105 around its description, thereby overlapping with the end face of middle sheet 99.After lateral plate 103 is so folding, anter 100 is upwards folding, thus make its end face also overlapping with the end face of middle sheet 99, the lateral plate 103 that has folded is clipped between middle sheet and the anter.After snap close 97 is so folding, by the moving down like that of 108 borders of the arrow among Fig. 7 a, make the locking plate that forms by middle sheet 99 and anter 100 enter groove 31 on the wing plate that is arranged in end cap 24 snap close.

The length of sheet 99 during the length of anter 100 is wanted how much to be shorter than, its situation has been made the best bright And that says and has been done explanation hereinbefore in Fig. 7 a.In case the complete Cha Ru of locking plate And is by groove 31, the terminal 109 of anter just freely moves forward towards end cap 24, and this moves arrow 110 expressions among available Fig. 7 b.This of anter 100 moves forward the lateral plate 103 that is subjected to originally being clipped between anter and the middle sheet 99 by the promotion of hacking the trend of launching on the elastic hinge that groove 105 limits.Consequently make the terminal 109 of anter 100 be fixed on reliably and now inserted in the inboard corner that the wing plate 29 in the carton forms by end cap 24.Like this, lateral plate 103 just provides further reliable assurance to the self-locking box shown in Fig. 7,7a and the 7b.

Fig. 8 represents the modified version of the anti-unlatching characteristics of a kind of further reinforcement snap close of the present invention and groove.The groove 114 that forms on wing plate 115 has the end 116 with respect to 117 bendings of its core.Like this, the groove of making 114 has the contour shape of a bending, and this is more or less as the appearance of the mouth of smiling.The necessary crooked corresponding amount of the middle sheet 44 of snap close 120 and the horizontal edge of anter 46 is so that can make snap close Cha Ru And pass crank slot 114.But in case the anter 46 of the snap close that inserts is crossed the lower edge of groove 114, thereby the horizontal edge of anter just is returned to its original position when anter is moved forward following side engagement with wing plate 115 by screen resilience.The return motion that anter 46 returns back to its original aspect causes snap close more to be difficult to pull out from groove, unless cut off snap close or use other method, can cause tangible damage vestige and do like this.

The end 116 of groove 114 should be too severely not crooked with respect to middle part 117, passes slotted eye otherwise can make snap close be difficult to Cha Ru And.In follow-on preferred embodiment shown in Figure 8, the middle part 117 of groove 114 occupied groove length overall about 70% to 75%.Middle part 117 is preferably between 40 ° to 65 ° with angle between each end 116, still within the scope of the invention, this angle also can be greatly some or smaller.So, the angle of angle can be passed slotted eye in order to Cha Ru And with snap close 120 bendings with regard to mild must being enough to, and also around groove, provides the tight locking of extra degree between the fitting part of anter 46 and wing plate 115 simultaneously.

Though described up to now embodiment uses general purpose carton to illustrate, also be applicable to various special purposes according to self-locking box of the present invention.One of example of this special purpose is illustrated among Fig. 9, and this figure is depicted as a carton 123, and its special contour shape is exclusively used in and carries long and relatively thin article, as suit bag or its analogue.The carton of doing by the whole dimension and the contour shape of carton 123 is used for shipping industry, and it can not make suit bag itself expose as the suit bag of passing through the luggage of checking to transport, thereby can make suit bag avoid the damage of baggage handling machine.Therefore carton 123 has enough width, can adapt to the width of conventional garments bag, and it also has enough length, can hold most of length of suit bag at least when suit bag being passed the upper end of opening wide 124 of carton.Carton 123 has a upper end cover 125, and it can close upper end 124 selectively, and this upper end cover by the back side of a fold line 126 and carton mutually.Upper end cover 125 has a pair of wing plate 129, and it can bend downwards along the outer rim 130 of upper end cover, to enter the top of carton, with upper limb 131 juxtapositions of preceding case face 132.If necessary, the lower end of carton 123 also can be assembled according to the present invention.

Carton 123 has a pair of angle blade 133 that extends internally from the carton side box surface.When closing carton 123, the upper end of opening wide of these angle blades 133 being crossed carton folds the 134 folding past of secondary end cap that ， And will link to each other with the upper end of preceding case face 132 by the fold line of upper limb 131, covers angle blade.Then that upper end cover 125 is folding, to cross secondary end cap ， And and make among the wing plate 129 insertion groove 129a, this groove is limited by the fold line along upper limb 131 on secondary end cap.

For the reliable lock and the intensity of the upper end cover 125 of the carton 123 of giving relative broad provides extra means, on carton, adopted the snap close 135 of the equidistant configuration in both sides of a pair of the past case face 132.These snap closes 135 in disclosed embodiment have identical structure and design with above-mentioned snap close 38, and each snap close 135 respectively with groove 136 engagements that on the wing plate 129 of upper end cover 125, form.Like this, these two independent snap closes 135 just when closing end cap, make end cap 125 form two-point form locking, and bigger reliability can be provided when the application force that carton 123 is carried luggage.

On the back side 138 of carton, be provided with a handle otch 139, so that more easily carry carton 123.Handle otch 139 is oblong, in the middle of it is positioned at, across the width of rear cabinet face 138.Handle otch 139 is hacked groove 140 and is positioned at this parallel with it horizontal cut line 141 of hacking groove below and limits by the level on the rear cabinet face 138, and this line of cut is at its two ends K/UP, thereby links to each other with the two ends of hacking groove.Line of cut 141 penetrates rear cabinet face 138 fully.Like this, line of cut 141 has just marked a fin 142 on rear cabinet face 138.Fin 142 can be around hacking groove 140 K/UPs, thereby mark corresponding handle otch 139 at this place.Like this, selected fin 142 is can be as shown in Figure 9 inwardly folding leaving a desired handle otch 139 from rear cabinet face 138, and for a people who carries the carton 123 that suit bag or analogue are housed, fin also provides a hand pad.Carton 123 also can be provided with two above-mentioned handle otch 139 along the length direction of rear cabinet face 138 at the differing heights place, can make the people of differing heights or different brachiums can both cosily grab And like this and carry carton 123, and can not produce the sort of situation not too easily that handle is placed on the carton upper end.In addition, the handle otch also can be located on the preceding case face 132, to substitute the setting on the rear cabinet face described herein.

Disintegrate on the upper end cover 125, above fold line 126 the very near position of superimposing thread be provided with one the hook otch 145.This hook otch 145 is included in the continuum of rear cabinet face 138 with the little fin and the upper end cover 125 of semicircle line of cut formation, and And has a camber line shape opening 146, with the end of admittance clothing link.Fin can outwards move to expose an opening, and the clothes or the clothing link on the suit bag that are contained in the carton 123 can stretch out by this opening.

Below referring to Figure 10 and 10a, the carton 150 shown in this figure is improved types of the described embodiment of Fig. 1 to 3c hereinbefore.At the carton shown in Figure 10 and the 10a is ready-made carton 150, comprises with suitable end face 151 and the bottom surface (not shown) that groove links to each other with a pair of side 152 of hacking.The snap close 156 similar to snap close 38 is positioned on the end face 151, suitable hacks groove and line of cut limits by above-mentioned.End cap 153 is the same with end cap 24 among Fig. 3 a, hacks groove by one and links to each other with the bottom surface.But, the tongue wing 154 that end cap 153 has an ora terminalis 153a who surmounts end cap to protrude upward, but this tongue wing only extends along the middle part of end cap, and on the total length of end cap 24, extend the wing plate 29 in Fig. 3 a illustrated embodiment.The tongue wing 154 is positioned at the middle part along the length direction of ora terminalis 153a, and is provided with a groove 155 on the tongue wing.

The same with the angle blade 26 among Fig. 3 a, carton 150 comprises a pair of by hacking the angle blade 157 that groove 158 links to each other with side 152 foldedly.But this among Figure 10 covered by a secondary end cap 159 angle blade 157.This secondary end cap forms as the extension of end face 151, and with hack groove 160 collapsibly with end face leading edge 161 adjacency of Lian And and end face Xiang.Secondary end cap in Figure 10 with respect to end face 151 with right angle fold, but should be understood that end face and secondary end cap are coplane at the beginning in order to the carton half-blank of making carton 150.

The middle part 166 of secondary end cap 159 is cut, expose the open spaces between the relative terminal of two angle blades 157 that inwardly fold.Middle part 166 must long enoughs, so that adapt with width along the tongue wing 154 of the ora terminalis 153a of end cap 153 when closing carton at folding end cap.

Closing of carton 150 is almost identical with previously described carton 32 with locking, and its difference is: after angle blade 157 inwardly was folded to position shown in Figure 10, secondary end cap 159 was folded to the position shown in this figure downwards.Therefore, the end of carton shown in Figure 10 is closed by angle blade 157 and secondary end cap 159.Subsequently that end cap 153 is folding along hacking groove 168, to close the end of carton, make end cap be in the position shown in Figure 10 a simultaneously.At this moment, the tongue wing 154 Cha Ru And of end cap 153 pass the slit 162 that forms by the inner edge at the secondary end cap 159 of the both sides at middle part 166 undercut and alignment, that form with it gap between the leading edge 161 of the inner edge of angle blade 157 and end face 151.

After the end of carton 150 so being closed, that snap close 156 is folding as the snap close among Fig. 3 a to 3c 38 by angle blade 157, secondary end cap 159 and end cap 153.The guide lug 171 that like this folding makes locking plate 172 align with groove 155 on the tongue wing 154 of end cap 153 and be positioned at groove 155 above, its position is shown among Figure 10 a.After this, with locking plate shown in arrow 173 like that to pressing down, locking plate is moved in the above described manner into And cross groove 155 thus.In case locking plate 172 all moves in the grooves, the terminal 174 of locking plate just moves forward by the edge of groove and by screen resilience, thus with the following side engagement of the tongue wing 154.This joint allows the middle part 166 ， Ands of locking plate by secondary end cap 159 can prevent that locking plate 172 from pulling out from groove, unless cut off the other parts of the tongue wing 154 or carton 150.

Increasing a secondary end cap 159 in carton 150 can make the compressive strength of carton increase widely.Significant be that the described end of this of carton 150 (also have the other end, but preceding topic is it identical with described end) has three layers of independent watt ridge cardboard that extend between carton end face and bottom surface.These independent ply of boards are made of folding angle blade 157, secondary end cap 159 and end cap 153.In particular, secondary end cap 159 and keeps secondary end cap vertical with the bottom surface with the end face of carton between angle blade 157 and end cap 153.Because being terminals 168 of integral body and secondary end cap with end face 151, the upside (can see in Figure 10 and 10a) of secondary end cap 159 keeps in touch with the bottom surface of carton, so secondary end cap keeps vertical with the end face of carton with the bottom surface, the compressive strength of nearly all so secondary end cap all can be used for bearing

Extrusion load along the Width effect of carton ends.For the carton of carrying and sending in order to parcel, the crushing resistance of carton increases particular importance, and at this moment, the carton that lighter items is housed still might be subjected to the bump of other the carton that quite big quality article are housed.The those of skill in the art of carton manufacturing will understand that, select special watt ridge paper, and the longitudinal size of watt ridge and carton face is made uniform, and also can the intensity of carton be worked.

Can understand that now foregoing only relates to the preferred embodiments of the present invention, and can carry out a large amount of changes and improvements not exceeding under the prerequisite by essence that claims limited and scope of the present invention.

Claims (14)

1. carton that when closing, can pin, comprise many interconnecting to form case face and an end cap of carton, this end cap links to each other to close an end of carton selectively with in the above-mentioned casing face first, and has a wing plate, this wing plate when the end of end cap enclosed carton, stretch into carton with occupy with above-mentioned casing face in second position adjacent, described carton is characterised in that:

A slotted eye that is positioned on the end cap;

One and second casing face bonded assembly snap close (38), this snap close is adjacent with the position that is occupied by slotted eye when end cap enclosed carton end;

Described snap close has a fold line (45), and this fold line defines a locking plate (50) that is used for inserting slotted eye;

Described locking plate has a middle part (44) and a fold line (47), and this fold line defines selectively folding, the front portion (46) to place along described middle part, and this fold line has formed the leading edge of a folding locking plate thus, and,

Its anterior folding like this locking plate is aimed at like this, made it be passed slotted eye and to be entered carton interior by leading edge, this front portion partly launches to engage with end cap with the terminal (49) with the front portion in carton, and this joint can stop snap close to be return from slotted eye like this;

Described end cap is locked on second casing face thus, to form the osed top carton.

2. carton as claimed in claim 1 is characterized in that,

Described second casing face has an edge, and this edge is relative with the junction of end cap and first casing face;

The fold line that connects described snap close and second casing face inwardly is provided with from described edge, so that the part of this snap close is positioned within the scope of second casing face; And

The fold line that limits described locking plate makes the snap close that has folding front portion be alignd at the edge of second casing face with between in order to the fold line that limits described snap close thus, so that it enters from the groove that the edge of second casing face inwardly is provided with.

3. carton as claimed in claim 1 is characterized in that,

Described second casing face has an edge, and this edge is relative with the junction of end cap and first casing face;

When described end cap enclosed carton, the slotted eye on the described end cap wing plate is positioned at the back of second casing face, and inside from its edge;

The described fold line (40) that connects described snap close and second casing face inwardly is provided with from described edge, so that the part of snap close is positioned within second casing face; And

In order to the described fold line (45) that enters the described locking plate of qualification in the groove be positioned at the edge of second casing face and fold line (40) that described snap close and the second casing face are linked to each other between, thereby the snap close that has the front portion that folds is alignd, so that enter from the described groove that the described edge of second casing face inwardly is provided with.

4. carton as claimed in claim 1 is characterized in that,

Described wing plate extends from an edge of described end cap, and this edge is relative with the junction of end cap and casing face;

Described snap close is connected with second casing face and from this extension, this second casing face is relative with the casing face that is connected with end cap;

Described snap close comprises root, and this root stops at the locking plate of the anter that has the middle part and extend from the leading edge at described middle part; And

When described middle part is folding, form the guide lug that its profile has part band gradient at least at the fold line between described middle part and the described anter at described anter, insert by slotted eye with the snap close that helps to fold.

5. carton as claimed in claim 4 is characterized in that, described anter is shorter than described middle part and an ora terminalis is arranged, and when the snap close that folds moves and penetrates in the groove, when ora terminalis was crossed slotted eye, ora terminalis just was resisted against on the described end cap.

6. carton as claimed in claim 4 is characterized in that, the root width of the described snap close width with described groove basically is identical.

7. carton as claimed in claim 4 is characterized in that:

Described anter has a guide lug;

A knuckle, it is formed with the wing plate that links to each other with end cap by the described end cap of carton; And

When described anter when carton interior is got back to above-mentioned position, the guide lug of described anter is against knuckle, thereby prevented the pulling out through slotted eye of described locking plate.

8. carton as claimed in claim 4, it is characterized in that, contain underlinedly on described middle part and anter, the position of mark can make mark also move into stacked position mutually when the middle part is folding at described anter, and this mark can indicate snap close to press the folding of pre-provisioning request thus.

9. carton as claimed in claim 4, it is characterized in that, fold line between described front portion and middle part makes anter fold into first folding position on the middle part, at this place, described anter folds on the fold line between sheet in described and the front portion along first direction, so that anter covers on the outside face at middle part, thereby anter when inserting, is moved to withstand the end cap of carton slotted eye passing; And

Described fold line also allows anter is folded into the second place on second direction, cover on the inside face at described middle part at this position anter, and the profile of some band gradient is entered in the above-mentioned slotted eye, described subsequently anter is got back to not folding position by elasticity, in carton not against end cap, therefore, second position, described end cap engages with the casing face, to form an osed top carton, but carton is not pinned at this place

Therefore, described snap close can be pulled out from the casing face selectively and can not be damaged snap close.

10. carton as claimed in claim 4 is characterized in that:

Described snap close integrally links to each other with the casing face relative with the casing face that is connected with end cap, and extends from this casing face;

Described snap close has a guide lug and a trailing edge;

When locking plate was folding, described guide lug had a profile that has part band gradient at least, entered slotted eye to help guide lug; And so folding locking plate is when being inserted through slotted eye, and described locking plate is deployed into certain position thereupon in carton, make near the trailing edge side end cap wing plate regions engaged with described slotted eye of snap close.

11. carton as claimed in claim 10 is characterized in that, the shape of described slotted eye is different with folding locking plate, and its corresponding part stands elastic deformation when therefore inserting locking plate in the slotted eye.

12. carton as claimed in claim 11 is characterized in that, described groove comprises a middle part that stops at the end that has sloping portion accordingly, and the length at described middle part surpasses the length of described band gradient part.

13. carton as claimed in claim 10, it is characterized in that, described snap close comprises that also at least one is with hacking groove and middle part bonded assembly lateral ends, this lateral ends can fold on the middle part of snap close, thereby make the lateral ends that folds to be inserted through slotted eye with snap close, and have at least a part to launch, thereby prevented deviating from of snap close in carton interior.

In case 14. one kind be used to make a kind of sustaining damage with regard to the full wafer carton half-blank of detectable carton, this half-blank comprises:

The rectangular box dignity and the side of two pairs of arranged alternate, they link to each other with first fold line parallel to each other;

A pair of end cap, each end cap are used with vertical and parallel each other second fold line of above-mentioned first fold line and are linked to each other with described casing face;

At least one this end cap has a wing plate, and this wing plate is from extending with described casing face junction opposed edges, and can be folding with respect to end cap along a fold line parallel with described second fold line;

A groove that is positioned on the described wing plate; And

A snap close, it uses three fold line parallel with described second fold line to link to each other with the casing face flexiblely, is not connected with end cap on this casing face;

Described snap close is included in the root that the locking plate place stops, and this locking plate has a middle part and an anter, and described anter links to each other with the middle part from the leading edge extension at middle part and by the snap close fold line parallel with the 3rd fold line; And

Described snap close is with respect to the wing plate setting of extending from an end cap, like this when anter is folding to middle sheet, thereby form the guide lug of snap close along the snap close fold line, and when the snap close that folds is inserted through the slotted eye of the paper phase made from half-blank, anter is returned to a certain position in carton, so that the part of anter is withstood the surface and the end cap that links to each other with wing plate of wing plate

Thus, the described end cap of carton just is locked on the casing face of carton and can not takes out, unless cut off snap close or can cause the method for apparent damage vestige with other.

Images