EP2678238A1 - Method to lock an openable door in a wall portion of a storing container and an arrangement of locking bars to perform said method. - Google Patents

Method to lock an openable door in a wall portion of a storing container and an arrangement of locking bars to perform said method.

Info

Publication number
EP2678238A1
EP2678238A1 EP12750178.1A EP12750178A EP2678238A1 EP 2678238 A1 EP2678238 A1 EP 2678238A1 EP 12750178 A EP12750178 A EP 12750178A EP 2678238 A1 EP2678238 A1 EP 2678238A1
Authority
EP
European Patent Office
Prior art keywords
lid
locking
locking bars
bars
closed position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP12750178.1A
Other languages
German (de)
French (fr)
Other versions
EP2678238A4 (en
Inventor
Gusten BERGMARK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nycopac AB
Original Assignee
Nycopac AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nycopac AB filed Critical Nycopac AB
Publication of EP2678238A1 publication Critical patent/EP2678238A1/en
Publication of EP2678238A4 publication Critical patent/EP2678238A4/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/005—Side walls formed with an aperture or a movable portion arranged to allow removal or insertion of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00736—Details
    • B65D2519/00805—Means for facilitating the removal of the load

Definitions

  • the present invention relates to a method to tightening and lock an openable lid in a wall section of a storing container and an arrangement of locking bar to perform said method.
  • Storing containers to be placed on pallet is often a part in a logistic system to transport and handle of goods.
  • Foldable storing containers have the advantage of taking up less space by return transport.
  • the containers with the details are transported for production and may be positioned at a conveyor line.
  • the stored and transported details are picked out from the containers for assembling.
  • To start with the details are manually picked up from the opened container and along with the using of the details and when the level of details in the containers being lowered it will be more time consuming and tricky to lend down to pick up the details.
  • it is of an advantage if it is possible to reach the details in the containers from openings in the side walls of the container. These openings must be closable and also be sealed of against weathering.
  • the main purpose of the present invention is to obtain a method and a locking lid arrangement to snap in and lock an openable and closable/lockable lid in an opening of a wall section of a storing container, which lid easily can be opened when needed to achieve an easy access to the details stored in the container.
  • An other purpose is to achieve a sealing bar arrangement which can be attached on a lid arranged in an opening of a container making it openable outwards, seen from within the container and lockable against movement inwards into the container.
  • Yet another purpose of the invention is to achieve a sealing bar arrangement between the lid and the wall section performing less resistance towards closing com- pared to opening and which very clearly will snap into its locking position when the lid is closed.
  • an other purpose of the invention is to obtain and use a transmission mechanism by an interaction between the locking bars being in force at the clamping of the lid to build up a strain between the lid and the wall sections of the storing container at both sides of the lid, which strain will at least partially be used to safely lock the lid in its closed position.
  • Yet another purpose of the invention is to achieve a locking bar arrangement which at least partially is capable of taking up the strain by an inner plastic deformation.
  • Another purpose of the invention is to obtain a surface design of interacting surfaces of the locking bars having an increased friction coefficient at a mutual movement between the locking bars in an opening and separating direction.
  • Fig. 1 is a diagrammatic view of an open lid in the wall of a storing container
  • Fig. 2 is a diagrammatic view according to fig. 1 but in a closed, sealed and locked position
  • Fig.3a - Fig. 3e are cross sectional views of a pair of locking bars in an introducing, interactive stage when closing the lid and in a fully closed position of the lid respectively,
  • Fig. 4 is a diagrammatic view of a pair of locking bars in a mutual biased position during closing and opening of a lid, and where
  • Fig. 5 is a diagrammatic end view of the pair of locking bars shown in fig. 4.
  • FIG. 1 two pairs of locking bars 3a, 4a and 3b, 4b are shown between the edges of an opening of a wall section 2b of a container and the side edges of a lid 1.
  • the locking lids have especially designed and mutual interacting surface profiles with projections and recesses b, c. In a closing process these surface profiles will be forced against each other (see also fig. 3) to finally end up in the position shown in fig. 2 in a closed or locked position.
  • the reference a is a locking tab on the locking bar 3 which in a completed closed position will lend towards the outside of the in- teracting locking bar 4. Here a small recess in the side of the locking bar 4 has been hinted.
  • This recess will take up the locking tab in forming a smooth outer side.
  • the projections and the recesses b, c will exert a pressure between the lid 1 and the wall sections 2b.
  • the locking bars and their projections and the recesses may be dimensioned and chosen so that the exerted pressure to a certain degree still exists in the closed position. In a normal use this pressure is not needed but may be of advantage when using a locking tab to increase a sealing action between the bars and thus also between the out side and the inside of the container.
  • Fig. 3a - 3e show the process of action between the locking bars 3, 4 during an ongoing closing of a lid (not shown), where a strain between the lid and the wall sections is excluded in the fully closed position (fig. 3e) of the lid.
  • the locking bar 3 has been shown in a stationary position during the complete closing process to more easily explain the principle of the interaction of the locking bars during closing.
  • the mutual movement of the closing bars 3, 4 during closing takes place during an angular movement where the between the projections and the recesses a, b of the bars will be introduced continuously and is changed along the full length of the bars.
  • a projection b on a first locking bar 3 will exert a force on a corresponding projection c on another locking bar 4 where the introducing phase is shown in fig. 3 a.
  • the procedure will continue during a successively decreasing opening angle and if the projections have a progressively increasing height a higher strain is built up between the lid and the wall sections compared to not having this increased height.
  • a resulting assisting strain will be exerted in the closing direction during a continued movement towards a fully closed position, whereby an active snap in action to a closed or locked position between the bars 3, 4 is achieved.
  • An opening of the lid 1 will initially demand a relatively high force. This is also the case if the profiles of the projections and the recesses are symmetric, that is the interacting mutual angles between the locking bars are equally big when closing as when opening the lid 1.
  • the factors taken up in a calculation for dimensioning and for choose of material to the closing bars will partly depend on properties of the wall sections and the lid and partly on how the walls of the storing container is supported, the size of the walls and how much of the wall surface that is taken up by a lid opening.
  • the height and the depth respectively of a projection and a recess at a locking bar may be depended of the position of the locking bar that is the height may vary along the bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

The present invention relates to a method to use a strain to clamp and releasable lock an openable lid (1) in a wall section (2a) of a storing container using particularly designed and interacting locking bars (3, 4). The invention is characterized in that the locking bars (3, 4), arranged two and two at the side edges of a wall section (2a) and of a lid (1), in an open, angular set initial position, will be brought to initial abutment during a continuous clamping and building up a strain acting between the lid (1) and the wall section (2a).

Description

Method to lock an openable door in a wall portion of a storing container and an arrangement of locking bars to perform said method.
The present invention relates to a method to tightening and lock an openable lid in a wall section of a storing container and an arrangement of locking bar to perform said method.
Storing containers to be placed on pallet is often a part in a logistic system to transport and handle of goods. Foldable storing containers have the advantage of taking up less space by return transport.
The advantages of the present invention shall be described in connection to a manufacturing line at an industrial plant where different details being parts of a manufactured product are stored in pallet supported containers along the manufacturing line. Often the details have been manufactured in another location and are transported in their containers to the place for production. Logistic advantages are obtained by transporting and storing the details in the one and same containers from manufacturing and all the way to a manufacturing line.
After manufacturing or storing the containers with the details are transported for production and may be positioned at a conveyor line. The stored and transported details are picked out from the containers for assembling. To start with the details are manually picked up from the opened container and along with the using of the details and when the level of details in the containers being lowered it will be more time consuming and tricky to lend down to pick up the details. In this connection it is of an advantage if it is possible to reach the details in the containers from openings in the side walls of the container. These openings must be closable and also be sealed of against weathering.
This is achieved by using an openable and closable or lockable lid arranged in an opening in a wall section of the container.
The main purpose of the present invention is to obtain a method and a locking lid arrangement to snap in and lock an openable and closable/lockable lid in an opening of a wall section of a storing container, which lid easily can be opened when needed to achieve an easy access to the details stored in the container.
An other purpose is to achieve a sealing bar arrangement which can be attached on a lid arranged in an opening of a container making it openable outwards, seen from within the container and lockable against movement inwards into the container.
Yet another purpose of the invention is to achieve a sealing bar arrangement between the lid and the wall section performing less resistance towards closing com- pared to opening and which very clearly will snap into its locking position when the lid is closed.
Still an other purpose of the invention is to obtain and use a transmission mechanism by an interaction between the locking bars being in force at the clamping of the lid to build up a strain between the lid and the wall sections of the storing container at both sides of the lid, which strain will at least partially be used to safely lock the lid in its closed position.
Yet another purpose of the invention is to achieve a locking bar arrangement which at least partially is capable of taking up the strain by an inner plastic deformation.
Another purpose of the invention is to obtain a surface design of interacting surfaces of the locking bars having an increased friction coefficient at a mutual movement between the locking bars in an opening and separating direction.
The above mentioned purposes are obtained by giving the invention the characterizing clauses mentioned in the claims.
The invention will now be described in connection to an embodiment shown on the accompanying drawings, where
Fig. 1 is a diagrammatic view of an open lid in the wall of a storing container,
Fig. 2 is a diagrammatic view according to fig. 1 but in a closed, sealed and locked position,
Fig.3a - Fig. 3e are cross sectional views of a pair of locking bars in an introducing, interactive stage when closing the lid and in a fully closed position of the lid respectively,
Fig. 4 is a diagrammatic view of a pair of locking bars in a mutual biased position during closing and opening of a lid, and where
Fig. 5 is a diagrammatic end view of the pair of locking bars shown in fig. 4.
In fig. 1 two pairs of locking bars 3a, 4a and 3b, 4b are shown between the edges of an opening of a wall section 2b of a container and the side edges of a lid 1. The locking lids have especially designed and mutual interacting surface profiles with projections and recesses b, c. In a closing process these surface profiles will be forced against each other (see also fig. 3) to finally end up in the position shown in fig. 2 in a closed or locked position. The reference a is a locking tab on the locking bar 3 which in a completed closed position will lend towards the outside of the in- teracting locking bar 4. Here a small recess in the side of the locking bar 4 has been hinted. This recess will take up the locking tab in forming a smooth outer side. In a mutual movement of the locking bars the projections and the recesses b, c will exert a pressure between the lid 1 and the wall sections 2b. The locking bars and their projections and the recesses may be dimensioned and chosen so that the exerted pressure to a certain degree still exists in the closed position. In a normal use this pressure is not needed but may be of advantage when using a locking tab to increase a sealing action between the bars and thus also between the out side and the inside of the container.
Fig. 3a - 3e show the process of action between the locking bars 3, 4 during an ongoing closing of a lid (not shown), where a strain between the lid and the wall sections is excluded in the fully closed position (fig. 3e) of the lid. Here the locking bar 3 has been shown in a stationary position during the complete closing process to more easily explain the principle of the interaction of the locking bars during closing. In this context it shall be mentioned that the mutual movement of the closing bars 3, 4 during closing takes place during an angular movement where the between the projections and the recesses a, b of the bars will be introduced continuously and is changed along the full length of the bars.
Thus a projection b on a first locking bar 3 will exert a force on a corresponding projection c on another locking bar 4 where the introducing phase is shown in fig. 3 a. The procedure will continue during a successively decreasing opening angle and if the projections have a progressively increasing height a higher strain is built up between the lid and the wall sections compared to not having this increased height. From the mutual position of the locking bars 3, 4 shown in fig. 3c where the highest strain is achieved between bars and the lid/wall sections, a resulting assisting strain will be exerted in the closing direction during a continued movement towards a fully closed position, whereby an active snap in action to a closed or locked position between the bars 3, 4 is achieved.
An opening of the lid 1 will initially demand a relatively high force. This is also the case if the profiles of the projections and the recesses are symmetric, that is the interacting mutual angles between the locking bars are equally big when closing as when opening the lid 1.
During closing the distance of movement of the lid is used to build up and also overcome the strain, but initially an essentially greater part of the strain mobilized by the mutual interacting locking bars needs to be overcome when initiating an opening of the lid. Often is seen as an advantage if the force needed to open is high. This will stop an unintentional opening of the lid. It is possible to adjust the opening force by choosing a more flat angle of interaction between the projections and the recesses of the locking bars. In such a case also the snap in action towards a fully closed position will be less markedly.
The factors taken up in a calculation for dimensioning and for choose of material to the closing bars will partly depend on properties of the wall sections and the lid and partly on how the walls of the storing container is supported, the size of the walls and how much of the wall surface that is taken up by a lid opening.
It is suppressed that the height and the depth respectively of a projection and a recess at a locking bar may be depended of the position of the locking bar that is the height may vary along the bar.
The man skilled in the art may here experiment with different heights and depth respectively at pairs of locking bars having in mind that their profiles must cooperate to obtain different opening and closing characteristics. Both of the locking bar pairs should advantageously have the same design of the profile curvature. For some uses where an increased locking action is preferred onto a closed lid it is possible to design a special micro surface structure to the interacting surfaces. This micro surface structure has very small barbs or biased projections in a size clearly less than 0, 1 mm. In closing direction the biased protrusions slide over each other without creating any markedly resistance but where the projections, in an opening direction of the lid will give an essentially greater resistance and thus will increase the locking action. Of course the lid is still openable, but it takes an increased force to open it, at least initially.
The invention is not restricted to the shown and described embodiments, but modifications can be done within the scope of the attended claims.

Claims

Claims
1. A method to use a strain to clamp and releasable lock an openable lid (1) in a wall section (2a) of a storing container using uniquely designed and interacting locking bars (3, 4), characterized in that the locking bars (3, 4), arranged two and two at the side edges of the wall section (2a) and of a lid (1), in an open, angularly set initial position, will be brought to an initial mutual abutment during a continuous clamping and thereby building up of a strain acting between the lid (1) and the wall section (2a).
2. A method according to claim 1, characterized in that the strain is built up successively until slanted engaging or abutting surfaces (b, c) of the interacting locking bars (3, 4) have come to full mutual abutment in the completely closed position of the lid (1), wherein a special locking tab (a) at one of the locking bars (3) will abut the other locking bar (4) and stop the lid (1) from passing said closed position.
3. A method according to claim 2, characterized in that a projection (c) extending along one of the locking bars (3, 4) will abut an indentation (b') extending along the other locking bar when moving the lid (1) towards its closed position, wherein the two interacting locking bars (3, 4) will be exposed to a force vector assisting in snapping the lid (1) into its closed position.
4. Arrangement of locking bars used to forcibly clamp and lock an openable lid (1) in a wall section (2a) of a storing container (2a) and to perform the method according to claim 1, characterized in pairs of locking bars (3, 4) with arrangements for attachment at the wall section (2a) and at the lid (1), and in interacting, opposing, canted abutting surfaces (b, c) sliding towards each other creating a strain between the lid (1) and the wall section (2a).
5. Arrangement of locking bars according to claim 4, characterized in that the abutting surfaces (b, c) of each locking bar (3, 4) of the pair of locking bars each has a projection (b, c) and an indentation (b', c').
6. Arrangement of locking bars according to claim 5, characterized in that the profiles of the abutting surfaces (b, c) are asymmetric to achieve an easier closing, and a safer locking in the closed position of the lid (1).
7. Arrangement of locking bars according to claim 4, characterized in that a locking tab (a) on one of the locking bars (3) is intended to abut the other locking bar (4) and stop the locking bars with the lid to pass the closed position.
8. Arrangement of locking bars according to claim 4 to 7, characterized in that the interacting, opposing, canted abutting surfaces (b, c) have a micro structure in the form of small biasing and interacting projections sliding over each other at a closing movement of the lid (1) without noticeably stopping this movement, while the projections at an opening movement of the lid (1) will create a resistance against this opening and thus enhances the locking action of the lid (1).
9. Arrangement of locking bars according to claim 7, characterized in that the locking tab (a) at the locking bar (3), in the closed position of the locking bars, is positioned in a recess at the interacting locking bar (4), wherein the two locking bars (3, 4) exhibit a common smooth outside in the closed position.
EP12750178.1A 2011-02-21 2012-02-20 METHOD FOR LOCKING A WORKING DOOR IN A WALL PART OF A STORAGE CONTAINER, AND LATCH BAR DEVICE FOR CARRYING OUT SAID METHOD Ceased EP2678238A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1100115 2011-02-21
PCT/SE2012/000018 WO2012115561A1 (en) 2011-02-21 2012-02-20 Method to lock an openable door in a wall portion of a storing container and an arrangement of locking bars to perform said method.

Publications (2)

Publication Number Publication Date
EP2678238A1 true EP2678238A1 (en) 2014-01-01
EP2678238A4 EP2678238A4 (en) 2015-10-14

Family

ID=46721110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12750178.1A Ceased EP2678238A4 (en) 2011-02-21 2012-02-20 METHOD FOR LOCKING A WORKING DOOR IN A WALL PART OF A STORAGE CONTAINER, AND LATCH BAR DEVICE FOR CARRYING OUT SAID METHOD

Country Status (2)

Country Link
EP (1) EP2678238A4 (en)
WO (2) WO2012115559A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201815858T4 (en) 2014-01-23 2018-11-21 Ktp Kunststoff Palettentechnik Gmbh Hopper with closable loading hole.
DE102016115215A1 (en) * 2016-08-16 2018-02-22 Infinex Holding Gmbh Side wall assembly for a container and method for its manufacture and container with such a side wall assembly

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770186A (en) * 1972-07-07 1973-11-06 J Kupersmit Collapsible shipping container
US3853238A (en) * 1972-09-05 1974-12-10 Gentex Corp Smooth operating cargo box
US4221302A (en) * 1977-08-12 1980-09-09 Container Systems Corp. Door construction for folding container
US4192430A (en) * 1979-03-12 1980-03-11 Allibert Exploitation, Societe Anonyme Laterally openable storage and transport box
DE3500427A1 (en) * 1985-01-09 1986-07-10 Wolfgang Uwe 4444 Bad Bentheim Friedrich Collapsible transport box
US4923076A (en) * 1988-12-09 1990-05-08 Air Cargo Equipment Corporation Cargo container apparatus with thermally expanding panels
US5161709A (en) * 1989-01-30 1992-11-10 World Container Corporation Hinged collapsible container
ATE234228T1 (en) * 1998-11-25 2003-03-15 Carrimor COLLAPSIBLE CONTAINER FOR HOLDING LIQUID SUBSTANCES
DE102004010237B4 (en) 2004-03-03 2006-02-23 Rico-Pack Gmbh Snap connector for ends of pallet ring consists of two h-profile strips, base of each h fitting over end of ring wall and flexible V-shaped section being mounted in front of its upright, sections fitting together and being compressed

Also Published As

Publication number Publication date
WO2012115559A2 (en) 2012-08-30
WO2012115561A1 (en) 2012-08-30
EP2678238A4 (en) 2015-10-14

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