CN1109178C

CN1109178C - Hinge for folding box

Info

Publication number: CN1109178C
Application number: CN 98105463
Authority: CN
Inventors: 贺文生
Original assignee: Polyearn Development Corp
Current assignee: Polyearn Development Corp
Priority date: 1998-03-09
Filing date: 1998-03-09
Publication date: 2003-05-21
Anticipated expiration: 2018-03-09
Also published as: GB2335183A; GB9901339D0; GB2335183B; CN1228503A

Abstract

The present invention provides a hinge for a folding suitcase, which is used for connecting the horizontal platform bottom frame of the folding suitcase with a corner post, wherein the corner post can be locked to a vertical position by a locking device of the hinge, the corner post can be folded to the platform bottom frame under the state that the locking device is loosened, and the locking device comprises a lock pin and a corresponding lock pin hole. The hinge is characterized in that the hinge also comprises an inner hinge and an outer hinge, the corner post is fixed to the inner hinge, and the outer hinge is fixed to the platform bottom frame. The inner hinge and the outer hinge are fixed to the platform bottom frame, and the corner post can rotate around a rotary pin.

Description

Hinge for folding box

In the container field, a kind of Special Container that is called as folding carton is arranged, it is made up of with four vertical corner posts a levelling bench underframe.Each bar corner post lays respectively at the position at four angles of platform underframe, links to each other with the platform underframe by hinge.Often be connected with end wall panel between two corner posts of every end.Each bar corner post can be locked in the upright position by the locking device of hinge, also may be folded on the platform underframe when the locking device of hinge is released.In case each bar 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 material benefit.

When folding carton in the actual shipment process during shipment, corner post is locked in the upright position, stackable other the similar container in its top.At this moment, enormous function power can be born in the corner post top, and active force also can pass to hinge and locking device thereof by corner post.Like this, not only require the intensity of corner post, hinge and locking device thereof good, also require no gap, locking device locking back, rock to prevent corner post, be easier to when guaranteeing to stack other container on the corner post top and also the container stable of stacking reliable.

Usually, locking device is to use cuboid, cylinder, voussoir or cone as lock pin in the hinge, 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, though do not have the gap between locking back lock pin and lockpin hole, when corner post is stressed, lock pin can be subjected to axial thrust load, forces it mobile vertically, thereby also can cause the gap occurring between lock pin and lockpin hole with voussoir or cone.Resembling BP GB2073149 just is to use cone as lock pin.

Gap when the objective of the invention is to eliminate locking device locking between lock pin and lockpin hole, thus rocking of corner post prevented, make the container stable that is easier to when stacking other container and stacks reliable on the corner post top.

Folding carton among the present invention is made up of sharp four the vertical corner posts of a levelling bench underframe.Corner post is connected through the hinge on underframe.Hinge is made up of inside and outside hinge and locking device.Corner post is fixed on the inner hinge, and outer hinges fixing fixes on the platform underframe, and inside and outside hinge is by the connection of shipping and reselling on another market.Corner post can be locked in the upright position by locking device, also can be folded on the platform underframe around the rotation of shipping and reselling on another market that connects inside and outside hinge when the locking device of hinge is released.

The lock pin of locking device is the cam pin that evenly changes at the radial buckling radius, and the lockpin hole in the inside and outside hinge also is the cam ring hole that evenly changes at the radial buckling radius.The external surface of lock pin and the inner surface of lockpin hole are same or analogous curved surface.Lockpin ventilating is crossed rotation in lockpin hole can make it lock in lockpin hole or loosen.When lock pin was in locking state in lockpin hole, lock pin contacted with the overwhelming majority surface of lockpin hole, has sizable coupling mechanism force, can bear bigger load.When lock pin was in relaxation state in lockpin hole, lock pin also can move axially.

One end of lock pin is connected with one, is fixed with handle on the axle, can make axle and lock pin rotate or move axially by joystick.

With hand hammer, the handle that is used for beaing on the axle makes axle and lock pin rotation near handle, causes lock pin to lock in lockpin hole or loosen.

When lock pin is in locking state in lockpin hole or when lock pin withdraws from lockpin hole, all available same stopping means prevents the radially rotation of axle and lock pin and moves axially.

When hand hammer was not used, available another fastening devices prevented its swing and slip.

When the invention has the advantages that locking device locking, lock pin contacts with the overwhelming majority surface of lockpin hole, has sizable coupling mechanism force, can bear bigger load; Has self-locking performance after the locking device locking; Locking device still can be locked after lock pin and lockpin hole in use wore and tore, and promptly locking device has compensability; Because lock pin is cylinder but not cone, so locking device locking back corner post is when stressed, and lock pin does not have and moves axially.

Existing conjunction with figs. illustrates in detail that with regard to embodiments of the invention its structure and function thereof are as follows, in order to understanding fully.

Fig. 1 is the folding carton axonometric drawing.

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

Fig. 3 is a folding carton end corner side view.

Fig. 4 is a folding carton end angle elevation.

Fig. 5 is lock pin relaxation state radial section view in lockpin hole.

Fig. 6 is lock pin locking state radial section view in lockpin hole.

Fig. 7 is axle and lock pin stopping means vertical view.

Fig. 8 is a hand hammer fastening devices lateral view.

Fig. 9 is a hand hammer fastening devices elevation.

Figure 1 shows that a typical folding carton.It is by the underframe 2 that wood flooring 1 is housed, end carriage 3, and bottom side beams 4, corner post 5, headwall 6, end back timber 7 and bottom beam 8 are formed.On each angle of folding carton corner fittings 9 or 10 are housed all, corner fittings direct casting porose 11 uses for suspender or twistlock.Headwall 6 can be locked in illustrated stand up position by hinge assembly 12, and when hinge assembly 12 was in releasing orientation, it also may be folded on the underframe 2.

Figure 2 shows that after one group of

similar folding carton

13,14,15,16,17 folds and be stacked together.

Corner post 5 is in stand up position among Fig. 3.Corner post 5 is connected on the inner hinge 18, and underframe 2 is connected on the outer hinge 19 by bottom side beams 4, ships and resell on another market 20 to run through inner hinge 18 and outer hinge 19.By shipping and reselling on another market 20, corner post 5 can be by diagram arrow A direction rotary folding on underframe 2.Corner post 5 also can rotate from the folding position pin 20 by the opposite spin of arrow A to stand up position, locked by lock pin 21, inner hinge 18 and outer hinge 19 again.Middle corner fittings 22 has the groove (not shown) near inner hinge 18 1 sides, and when corner post 5 was upright, inner hinge 18 was positioned at this groove, in the middle of the back side of inner hinge 18 leans against on the top surface 23 of corner fittings 22.The top surface 23 of corner fittings 22 can bear the power that corner post 5 tops are transmitted like this, can prevent that also corner post 5 from falling down to diagram arrow B direction.

Corner post 5 is in stand up position among Fig. 4, inner hinge 18, outer hinge 19,19 ' and 19 ", lock pin 21 is broken away.Upright when corner post 5, when hinge assembly 12 is in locking state, lock pin 21 is locked at inner hinge 18, outer hinge 19 ', 19 " in lockpin hole 24,25,25 ' in; inner hinge 18, outer hinge 19 ', 19 " in lockpin hole 24,25,25 ' with one heart, limiting plate 26 nestles up the gripper shoe 28 of axle 27, and limited block 30 is in the spacing breach 31 of limiting plate 29.As shown, be folded on the underframe 2, should hold up limiting plate 29, make it be higher than limited block 30, and remove the position-limiting action of limiting plate 29 at spacing breach 31 places in order to make corner post 5.The handle 33 of holding hand hammer 32 slides annulus 34 on axle 35, allow hand hammer 32 reach between handle 36 and the end carriage 3, handle 33 is rotated towards the direction of handle 36 outward, so that hand hammer 32 bump handles 36, force handle 36 to rotate towards direction outward away from end carriage 3.Axle 27 and lock pin 21 also rotate together with handle 36 and make lock pin 21 be in relaxation state in lockpin hole 24,25,25 '.When lock pin 21 is in relaxation state, hold handle 36 and make its rotation locate horizontal level approximately, decontrol limiting plate 29, hold handle 36 toward moving left, run into gripper shoe 28 up to limited block 30, at this moment handle 36 is in 36 ' position.And then handle 36 is down rotated towards headwall 3, until limited block 30 be in spacing breach 37 axis 27 of limiting plate 29 limited till.At this moment, the end face 38 of lock pin 21 is in outer hinge 19 " in hole 25 ' in, corner post 5 just can be folded on the underframe 2 like this.It is just opposite with said process to make corner post 5 be locked in the operating process of stand up position.Should make corner post 5 be in stand up position earlier, make inner hinge 18, outer hinge 19 ', 19 " in lockpin hole 24,25,25 ' with one heart, hold up limiting plate 29 again, make it be higher than limited block 30, and remove the position-limiting action of limiting plate 29 at spacing breach 37 places.Towards the direction turning handle 36 ' that deviates from headwall 3, make it locate horizontal level approximately outward, hold handle 36 toward moving right, run into gripper shoe 28 up to limiting plate 26, at this moment handle 36 ' is in 36 position.And then handle 36 ' is down rotated towards headwall 3.When being difficult to rotate, the handle 33 that can hold hand hammer 32 slides annulus 34 on axle 35, allow hand hammer 32 move on to side outside the handle 36 ', with hand hammer 32 bump handles 36 ', forces handle 36 ' to rotate towards the direction of end carriage 3 inward.Axle 27 and lock pin 21 also rotate together with handle 36 ' and make lock pin 21 be in locking state.Until limited block 30 be in spacing breach 31 axis 27 of limiting plate 29 limited till.

Lock pin 21 among Fig. 5, inner hinge 18 are radially being cut open, lock pin 21 be in the lockpin hole 24 of inner hinge 18 (lock pin 21 is hinge 19 ', 19 outside " lockpin hole 25,25 ' in the locking principle identical, do not explain in addition), be relaxation state.The external surface of lock pin 21 is the similar curved surface (cam surface) in the even change of radial buckling radius to lockpin hole 24.37 of lock pin 21 with lockpin hole 24 38 contact, and this moment, lock pin 21 was a maximum with gap 39 between the lockpin hole 24, and lock pin 21 moves axially in lockpin hole 24 and is easier to.When lock pin 21 rotates by arrow C in

lockpin hole

24,37 of lock pin 21 with 38 faces of lockpin hole 24 gradually away from, it is more and more littler that gap 39 also becomes, and is locking state during vanishing at last.

Lock pin 21 among Fig. 6, inner hinge 18 are radially being cut open, lock pin 21 be in the lockpin hole 24 of inner hinge 18 (lock pin 21 is hinge 19 ', 19 outside " lockpin hole 25,25 ' in the locking principle identical, do not explain in addition), be locking state.37 38 faces with lockpin hole 24 of lock pin 21 have angle, and the gap 39 between lock pin 21 and the lockpin hole 24 is zero at this moment.When lock pin 21 was pressed the rotation of arrow D direction in lockpin hole 24, gap 39 became increasing, and 37 38 faces with lockpin hole 24 of lock pin 21 also move closer to, and are relaxation state when contacting at last.

End carriage 3 sharp gripper shoes 28 are broken away among Fig. 7.Limiting plate 29 is fixed in the rotating shaft 40, can rotate with rotating shaft 40.When hinge assembly 12 is in locking state, limited block 30 is in the spacing breach 31 of limiting plate 29, the face 41 of limiting plate 29 can prevent that the past arrow E from being that lock pin 21 loosening directions are rotated, the face 42 of limiting plate 29 can prevent axle 27 toward moving left, and the limiting plate 26 that is fixed on the axle 27 can prevent that axle 27 is toward moving right.When holding up limiting plate 29 above limited block 30, axle 27 can rotate toward the arrow E direction, also can be toward moving left.When hinge assembly 12 is in releasing orientation, limited block 30 is in the spacing breach 37 of limiting plate 29, the face 43 of limiting plate 29 can prevent that the past arrow E from being that lock pin 21 loosening directions are rotated, and the face 44 of limiting plate 29 can prevent axle 27 toward moving right, and gripper shoe 28 can prevent that axle 27 is toward moving left.When holding up limiting plate 29 above limited block 30, axle 27 can rotate toward the arrow E direction, also can be toward moving right.

Fig. 8 is a hand hammer fastening devices lateral view.Have a groove 47 on lock pin 46 sides on the support 45, the shape that is fixed on the block 48 on the lock pin 46 is identical with groove 47, and the handle 49 of rotational fixation on lock pin 46 makes block 48 concordant with groove 47, and block 48 can allow lock pin 46 move vertically by groove 47.When block 48 staggered with groove 47, lock pin 46 just can not move arbitrarily vertically.

Fig. 9 is the elevation of hand hammer locking device.When handle 49 was horizontal, the lock pin 46 that can move right was locked in the handle 33 of hand hammer 32 between support 50 and 51, or was moved to the left lock pin 46 and allows hand hammer 32 and handle 33 thereof be in free state.When hand hammer 32 and handle 33 thereof were in by the lock state, block 48 staggered with groove 47 among Fig. 8, and block 48 is positioned at support 45 right sides, can prevent that lock pin 46 is moved to the left.

Claims

1. hinge for folding box, be used to connect the levelling bench underframe and the corner post of folding carton, described corner post may be locked in the upright position by the locking device of hinge, under the state that locking device unclamps, corner post may be folded in the platform underframe, described locking device comprises lock pin and corresponding with it lockpin hole, in this hinge also comprises, outer hinge, described corner post is fixed on the inner hinge, outer hinges fixing fixes on the described platform underframe, in, outer hinge is by the connection of shipping and reselling on another market, and corner post can rotate pin and rotate, and it is characterized in that, described lock pin is the cam pin that evenly changes at the radial buckling radius, in, lockpin hole in the outer hinge also is the cam ring hole that evenly changes at the radial buckling radius, and the external surface of lock pin and the inner surface of lockpin hole are same or analogous curved surface, makes its locking or loosens by the rotation of lock pin in lockpin hole.

2. hinge for folding box as claimed in claim 1 is characterized in that, when lock pin was in relaxation state in lockpin hole, lock pin can move axially.

3. hinge for folding box as claimed in claim 1 or 2 is characterized in that, an end of described lock pin is connected with one, is fixed with handle on the axle, can make axle and lock pin rotate or move axially by joystick.

4. hinge for folding box as claimed in claim 3 is characterized in that, hand hammer also is set near handle, is used to beat the handle on the axle, makes axle and lock pin rotation, causes lock pin to lock in lockpin hole or loosen.

5. hinge for folding box as claimed in claim 3 is characterized in that, also comprises stopping means, when lock pin is in locking state or withdraws from lockpin hole in lockpin hole, is used for preventing the radially rotation of axle and lock pin and moving axially.

6. hinge for folding box as claimed in claim 4 is characterized in that, also comprises fastening devices, when not using hand hammer, prevents its swing and slip.