CN1121337C

CN1121337C - Hinge for folding box

Info

Publication number: CN1121337C
Application number: CN99107966A
Authority: CN
Inventors: 马彬
Original assignee: Polyearn Development Corp
Current assignee: Polyearn Development Corp
Priority date: 1999-06-08
Filing date: 1999-06-08
Publication date: 2003-09-17
Anticipated expiration: 2019-06-08
Also published as: GB9919259D0; GB2350862A; CN1252378A; GB2350862B

Abstract

The present invention discloses a hinge for a folding box, which comprises an internal hinge plate and two parallel external hinge plates, wherein the internal hinge plate and the external hinge plates are mutually connected through a rotating pin which is vertical to the internal hinge plate and the external hinge plates. The present invention is characterized in that the external hinge plates and the internal hinge plate are provided with a tetrahedral conic hole and a tetrahedral conic pin; the tetrahedral conic hole which is vertical to each of the hinge plates penetrates through the external hinge plates and the internal hinge plate; the tetrahedral conic pin which can slide along the direction of an end beam is correspondingly matched with the tetrahedral conic hole. The hinge for a folding box can effectively eliminate a gap between a lock pin and a lock pin hole when a locking device is locked to prevent a lock pin shaft from rotating, thereby preventing foot columns from swinging.

Description

Hinge for folding box

The invention belongs to the container technology field, it relates to a kind of structure of collapsible container, especially the structure of the hinge means between collapsible container corner post and the underframe.

Collapsible container (abbreviation folding carton) is made up of a platform underframe and four corner posts perpendicular to this underframe.Every corner post lays respectively at the position at four angles of platform underframe, links to each other with the platform underframe by hinge.Usually be connected with end wall panel between two corner posts of every end.Corner post can be locked in the upright position by latching device, also may be folded on the platform underframe when latching device is released.In case every corner post is folded on the underframe, this kind folding carton can be used as general platform container again and uses, and other folding carton is stackable on it, like this concerning depositing and transporting, and all both economical practicality.

When folding carton in the actual shipment process during shipment, corner post is locked in the upright position, other similar freight container is usually stacked at its top.At this moment, enormous function power can be born in the corner post top, and application force also can pass to the latching device of hinge by corner post.Like this, not only require the intensity of corner post and latching device thereof good, also require no gap, latching device locking back,, guarantee to be easier to when other freight container is stacked on the corner post top, and the container stable of stacking is reliable in case corner post rocks.

Usually, the hinge latching device is to use cuboid, cylinder, Elliptical circle, single face voussoir or cone as lock pin, and lock as lockpin hole in the corresponding hole of brill on the flap of hinge.During as lock pin, the gap between lock pin and lockpin hole can't be eliminated with cuboid and cylinder.During as lock pin, perpendicular other two sides is difficult to enter lockpin hole, or the gap is very big, the problem that exists the gap identical with the cuboid lock pin to eliminate with the single face voussoir.Resemble US Patent 4,353,520 usefulness single face voussoirs are as lock pin.Yong Elliptical circle is during as lock pin, is to utilize to relatively rotate between lock pin and the lockpin hole to produce axial off-centre and come wedging, has major part not contact between lock pin and the lockpin hole.During as lock pin, though do not have the gap between locking back lock pin and lockpin hole, when corner post was subjected to the power of wigwag motion, corner post rotated around taper pin easily, and corner post stability is affected with taper pin.Resembling the GB2073149 of British patent just is to use taper pin as lock pin.

The purpose of this invention is to provide a kind of hinge for folding box, gap in the time of can eliminating latching device locking effectively between lock pin and lockpin hole, increase the contact surface of lock pin and lockpin hole as far as possible, simultaneously can avoid taking place lock pin rotates, thereby prevent rocking of corner post, make when stacking other freight container to be easier to, and the container stable of stacking is reliable on the corner post top.

The objective of the invention is to be achieved through the following technical solutions: a kind of hinge for folding box, comprise the outer flap that the inner hinge plate is parallel with two, between the flap and parallel with outer flap, captive joint with corner post by the end of described inner hinge plate outside two for described inner hinge plate; Described inner hinge plate and outer flap are by being coupled to each other perpendicular to shipping and reselling on another market of they; Outer flap is parallel with the curb girder of platform underframe and captive joint with the curb girder and the end carriage of platform underframe; It is characterized in that, outside described, be provided with rectangular pyramid hole vertical with each flap and that each flap is connected on flap and the inner hinge plate, and be provided with can along described end carriage direction slide and with the rectangular pyramid pin of described rectangular pyramid hole corresponding matching.

Because aforesaid hinge for folding box of the present invention, the lock pin of its latching device has adopted the rectangular pyramid pin, and the lockpin hole in the cooresponding with it inside and outside hinge has adopted the rectangular pyramid hole.The rectangular pyramid pin can make it lock in the rectangular pyramid hole or unclamp by moving axially in the rectangular pyramid hole.When taper pin was in locking state in taper hole, taper pin contacted fully with the surface of taper hole, has sizable coupling mechanism force, can bear bigger load.Because this taper pin is the rectangular pyramid pin, taper hole is rectangular pyramid with matching hole, taper pin in taper hole without any the trend of rotating, as long as taper pin does not also withdraw from taper hole fully, corner post just is in stabilized conditions, can not topple over, the stability of corner post and processing safety strengthen greatly with the lock pin of other shape.

Below in conjunction with drawings and Examples the present invention is described in further detail.

Fig. 1 is the folding carton axonometric drawing;

Fig. 2 is for being deposited in the lateral plan of several folding cartons together after folding;

Fig. 3 is hinge for folding box of the present invention folding carton end angle axonometric drawing when latching device is locked;

Fig. 4 is the cutaway view in inside and outside flap and rectangular pyramid hole;

Fig. 5 is hinge for folding box of the present invention folding carton end angle axonometric drawing when latching device unclamps.

Figure 1 shows that a representative type folding carton.It is made up of platform underframe 1, end carriage 3, bottom side beams 4, corner post 5, headwall 6, end back timber 7 and bottom beam 8.On each angle of folding

carton corner casting

9 and 10 are housed all, corner casting 9 direct castings porose 11 use for suspender or twistlock.Headwall 6 can be locked in graphic stand up position by hinge assembly 12, and when hinge 12 was in releasing orientation, headwall 6 may be folded on the underframe 2.

Figure 2 shows that after one group of

similar folding carton

13,14,15,16,17 folds to be stacked in together, be convenient to transport and deposit.

Folding carton end angle axonometric drawing when Fig. 3 locks for latching device, its latching device is an exemplary embodiments of the present invention.This latching device comprises the outer flap 19 that inner hinge plate 18 is parallel with two, and between the flap 19 and parallel with outer flap 19, captive joint with corner post 5 by the end of inner hinge plate 18 outside two for inner hinge plate 18; Inner hinge plate 18 and outer flap 19 are by 20 being coupled to each other perpendicular to shipping and reselling on another market of they; The curb girder 4 of outer flap 19 and platform underframe 1 is parallel and captive joint with the curb girder 4 and the end carriage 3 of platform underframe 1; Flap 19 and inner hinge plate 18 are provided with rectangular pyramid hole 24 vertical with each flap and that each flap is connected outside, and be provided with can along end carriage 3 directions slide and with the rectangular pyramid pin 23 of rectangular pyramid hole 24 corresponding matching.

Inner hinge plate 18, outer flap 19 and the hinge assembly of 20 formations of shipping and reselling on another market.Inner hinge plate 18 can 20 rotate along shipping and reselling on another market, thereby corner post 5 can be erected and can be folding to horizontal direction along curb girder 4.Rectangular pyramid pin 23 is used for when corner post 5 erects, and 24 insert along the rectangular pyramid hole, thereby the position of corner post 5 is fixed.

As shown in Figure 3, in the present embodiment, rectangular pyramid pin 23 is fixedly connected on an end of slide-bar 30, and the other end of slide-bar 30 passes the hole 32 on the riser 31, and riser 31 and end carriage 3 are vertical and captive joint with end carriage 3.On slide-bar 30, be provided with and slide-bar 30 baffle plate 25 vertical and that captive joint with slide-bar 30 and baffle plates 29, and between baffle plate 25 and baffle plate 29, be provided with the sliding hammer 28 that borehole jack by the axle center can slide along slide-bar 30 on slide-bar 30.On this cunning hammer 28, be provided with the U-shaped handle 27 of captiveing joint with it.In the present embodiment, sliding hammer 28 is the cylinder that an axle center is provided with the hole.Also be provided with the clamp 26 that flexibly connects by rotating shaft 33 and end carriage 3 in the present embodiment in appropriate location corresponding to slide-bar 30.

Baffle plate 25 or baffle plate 29 by control U-shaped handle 27 can make sliding hammer 28 clash on the slide-bars 30 produce taper pin 23 and move axially, with the purpose that reaches locking or unclamp in taper hole 24.

Be subjected to the restriction of the distance between baffle plate 29 and the riser 31, rectangular pyramid pin 23 can only axially move in taper hole 24, and when latching device unclamped, rectangular pyramid pin 23 residing positions neither can hinder folding of inner hinge plate 18 can not drop out outer flap 19 again.

Corner post 5 is in stand up position among Fig. 3, and latching device is in locking state.Its locking process is as follows: after corner post 5 is in stand up position, at first upwards start clamp 26, make it center on upwards upset of rotating shaft 33, hold the U-shaped operating handle 27 on the sliding hammer 28, applying an external force makes sliding hammer 28 along the axis of slide-bar 30 impingement baffles 25 forward, make rectangular pyramid pin 23 and be fixed on all other part on the slide-bar 30 along with slide-bar 30 levels move forward, under the effect of the sliding hammer 28 horizontal axis power that produced, in rectangular pyramid pin 23 progresses into, in the rectangular pyramid hole 24 of outer flap, make the surface of rectangular pyramid pin 23 and the surperficial close fit of taper hole 24, to reach in the locking, the purpose of outer flap and corner post 5.Simultaneously, putting down clamp 26 makes on its side that is stuck in baffle plate 25 34.Clamp 26 bottoms can have the circular shape similar to the shape of slide-bar 30.Clamp 26 engages with baffle plate 25, has limited all parts that comprise rectangular pyramid pin 23 that are fixed on the slide-bar 30 and can not arbitrarily move.

Fig. 4 is the cutaway view in inside and outside flap rectangular pyramid hole, represented latching device relation between the rectangular pyramid hole 24 on rectangular pyramid pin 23 and the inside and outside flap in the locking process.When just beginning to insert rectangular pyramid pin 23, the surface in the rectangular pyramid hole 24 in taper pin 23 and the inside and outside flap has only small part to contact, but work as along with taper pin 23 going deep in taper hole 24, just make the taper pin 23 and the surface contact area of taper hole 24 increase gradually, along with taper pin 23 is pushed ahead more, taper pin 23 is also just got over closed contact with the taper hole 24 of inside and outside flap, has just reached the purpose of locking.

Fig. 5 is hinge for folding box of the present invention folding carton end angle axonometric drawing when latching device unclamps.When under latching device is in locking state, needing to unclamp latching device, at first upwards start clamp 26, make it center on upwards upset of rotating shaft 33, hold the U-shaped operating handle 27 on the sliding hammer 28, applying an external force makes sliding hammer 28 along the axis of slide-bar 30 impingement baffles 29 backward, make rectangular pyramid pin 23 and be fixed on all other part on the slide-bar 30 along with slide-bar 30 levels move backward, under the effect of the sliding hammer 28 horizontal axis power that produced, rectangular pyramid pin 23 with in, taper hole 24 original closed contacts of outer flap are removed gradually, so that rectangular pyramid pin 23 withdraws from taper hole 24 gradually.When baffle plate 29 contacted with riser 31, rectangular pyramid pin 23 had just fallen back on the position of the rotation that does not hinder inner hinge plate 18 and corner post 5, and can put down clamp 26 this moment, and the pin 20 that then corner post 5 rotated is down folding in platform.

The invention has the advantages that latching device when locking, taper pin 23 and taper hole 24 nearly all surfaces can both closely contact, and have sizable coupling mechanism force, can bear bigger load; Has self-locking performance after the latching device locking; Latching device still can be locked reliably after taper pin 23 in use wore and tore with taper hole 24, and promptly latching device has compensability; Because this taper pin 23 is rectangular pyramid body non-cylinder, cone or ellipsoid, so latching device locking back corner post is when stressed, and taper pin does not have rotation.

The structure of the sliding hammer 28 that is adopted in the embodiment of the invention compared with prior art also has unique advantages.Common sliding hammer has dumb-bell shape, big centre, two is little, hand is directly held the sliding hammer body of dumb-bell shape during operation, use this sliding hammer, exert oneself slightly more suddenly during operation, operator's hand is crushed by the bump of dumbbell front end or rear end and slide-bar overhead gage, and the sliding hammer processing safety of this dumb-bell shape is relatively poor.Also has a kind of sliding hammer for cylindrical sliding hammer body band one straight-bar operating handle, the sliding hammer of using in the US Patent 435320 has just been used the sliding hammer of this band straight-bar handle, though relatively safety is gone up in this sliding hammer operation, but this sliding hammer is not easy to along the slide-bar axial force distribution, fixed dam on the impact groove drives lock pin and advances or retreat effectively, usually make to depart between sliding hammer body axial line and the slide-bar axial line and cause sliding hammer body and slide bar Do to live owing to the operator is difficult to grasp accurately work angle, influence is operation normally.In the embodiment of the invention, sliding hammer 28 is the sliding hammer that has U-shaped operating handle 27, has overcome the disadvantage of existing sliding hammer, safety of operation, convenience, effective.

Claims

1, a kind of hinge for folding box, comprise the outer flap (19) that inner hinge plate (18) is parallel with two, described inner hinge plate (18) is positioned between the two outer flaps (19) and is parallel with outer flap (19), captives joint with corner post (5) in the end of described inner hinge plate (18); Described inner hinge plate (18) is coupled to each other by ship and resell on another market (20) perpendicular to them with outer flap (19); Outer flap (19) is parallel with the curb girder (4) of platform underframe (1) and captive joint with the curb girder (4) and the end carriage (3) of platform underframe (1); It is characterized in that, be provided with rectangular pyramid hole (24) vertical with each flap and that each flap is connected on flap outside described (19) and the inner hinge plate (18), and be provided with can along described end carriage (3) direction slide and with the rectangular pyramid pin (23) of described rectangular pyramid hole (24) corresponding matching.

2, hinge for folding box according to claim 1, it is characterized in that, described rectangular pyramid pin (23) is fixedly connected on an end of slide-bar (30), the other end of slide-bar (30) passes the hole (32) on the riser (31), and riser (31) is vertical with described end carriage (3) and captive joint with end carriage (3).

3, hinge for folding box according to claim 2, it is characterized in that, on described slide-bar (30), be provided with baffle plate (25) vertical with slide-bar (30) and that captive joint with slide-bar (30) and baffle plate (29), and between baffle plate (25) and baffle plate (29), be provided with the sliding hammer (28) that borehole jack by the axle center can slide along slide-bar (30) on slide-bar (30).

4, hinge for folding box according to claim 3 is characterized in that, is provided with the U-shaped handle (27) of captiveing joint with it on described sliding hammer (28).

5, hinge for folding box according to claim 4 is characterized in that, described sliding hammer (28) is the cylinder that an axle center is provided with the hole.

6, hinge for folding box according to claim 3 is characterized in that, is provided with the clamp (26) that flexibly connects by rotating shaft (33) and described end carriage (3) in the appropriate location corresponding to described slide-bar (30).