KR101749490B1 - Hinge unit of foldable container - Google Patents

Hinge unit of foldable container Download PDF

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Publication number
KR101749490B1
KR101749490B1 KR1020150170232A KR20150170232A KR101749490B1 KR 101749490 B1 KR101749490 B1 KR 101749490B1 KR 1020150170232 A KR1020150170232 A KR 1020150170232A KR 20150170232 A KR20150170232 A KR 20150170232A KR 101749490 B1 KR101749490 B1 KR 101749490B1
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KR
South Korea
Prior art keywords
hinge
pillar
folding
pillars
folding target
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KR1020150170232A
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Korean (ko)
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KR20170064424A (en
Inventor
조해용
추연근
Original Assignee
충북대학교 산학협력단
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Priority to KR1020150170232A priority Critical patent/KR101749490B1/en
Publication of KR20170064424A publication Critical patent/KR20170064424A/en
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    • 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
    • B65D88/00—Large containers
    • B65D88/52—Large containers collapsible, i.e. with walls hinged together or detachably connected
    • 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
    • B65D88/00—Large containers
    • B65D88/52—Large containers collapsible, i.e. with walls hinged together or detachably connected
    • B65D88/522—Large containers collapsible, i.e. with walls hinged together or detachably connected all side walls hingedly connected to each other or to another component of the container
    • B65D88/524—Large containers collapsible, i.e. with walls hinged together or detachably connected all side walls hingedly connected to each other or to another component of the container and one or more side walls being foldable along an additional median line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

A hinge unit for a folding container is disclosed. A hinge unit for a foldable container is hinge-coupled to at least one upper and lower first and second folding target panels constituting a side wall of a foldable container. The hinge unit comprises: i) a first folding target object A first pillar integrally connected to both ends of the panel, ii) a second pillar integrally connected to both ends of the second folding target panel with a second folding target panel therebetween, and iii) A hinge pin which is hinged to the second pillar and forms a single hinge center axis at the hinge connection portion of the pillars; iv) a second pillar arranged along the hinge center axis between the first and second corresponding target panels, And a hinge housing in which one end is integrally connected to the second folding target panel and the other portion is disposed separately from the first folding target panel.

Description

[0001] HINGE UNIT OF FOLDABLE CONTAINER [0002]

Embodiments of the present invention relate to a foldable structure such as a cargo container, and more particularly to a hinge structure for a foldable container that hinges the folded portion of the foldable container.

Generally, the container is in the form of a large box formed of an iron plate and is mainly used for cargo transportation. Such a container is sized to have a certain size, and is easy to store and transport freight, and is widely used because it has the advantage of being able to protect the cargo loaded inside.

Containers are transported individually by large freight vehicles, which are used exclusively, or in large quantities by dedicated trains or dedicated vessels. At this time, the container occupies the same transportation space for the transportation means as described above even in the state in which the cargo is loaded or unloaded.

Therefore, when the containers are loaded in such a container and the container is to be transported to another place or a container is to be stored in a certain place, the volume of the container is so large that the transportation space and the transportation cost due to storage and transportation are required.

That is, even if the container is loaded in a container and then transported to a predetermined place, even if the container is collected in an empty state, there is no change in the volume of the container, so that much space and cost are required for storage and transportation.

Particularly, when a container is moved by using a large freight vehicle, since one container is mounted on one freight vehicle, the transportation efficiency is lowered and the transportation cost can be greatly increased.

Also, because these containers take up a lot of space, there is a risk of accidents due to the considerable height of these containers when multiple containers are stacked.

In order to improve this, a folding container (also referred to as a "foldable container" in the related art in the related art) capable of saving stacking space and capable of being folded in a state in which no cargo is stacked for easy and convenient transportation Lt; / RTI >

For example, in the folding container according to the prior art, both side plates between the bottom plate and the roof plate are composed of an upper side plate and a lower side plate.

Here, the upper side plate and the lower side plate, the upper side plate and the roof plate, and the lower side plate and the bottom plate are pivotally coupled as a plurality of hinge devices so as to be foldable with each other. The hinge device includes a hinge block on each of the plates folded together, a connecting block connecting the hinge blocks, and a hinge block hinge-coupled to the hinge block through the hinge pin.

The folding container according to the prior art employing the above-described hinge device is disclosed in Korean Patent Publication No. 10-1064803, Korean Patent Registration No. 10-1439073 and Korean Patent Registration No. 10-1489626.

The foldable container according to the related art includes a hinge block provided on each of the plates folded together as a hinge device, a connecting block connecting the respective hinge blocks, and a hinge pin hinging the respective hinge block and the connecting block, The entire hinge device is complicated in structure and heavy in weight, and is not easy to manufacture and mount.

The hinge device of the folding container according to the related art has a structure in which the load of the plate having two rotational degrees of freedom (hinge center axis) and folded with each other is concentrated on the hinge pin by hinging each hinge block through the connecting block and the hinge pin. The structural stability may be deteriorated.

The matters described in the background section described above are intended to enhance understanding of the background of the invention and may include matters not previously known to those skilled in the art.

Embodiments of the present invention provide a hinge unit for a folding container having a single rotational degree of freedom and capable of smoothly distributing an acting load as a simple structure.

The hinge unit for a folding container according to an embodiment of the present invention is for hinging at least one upper and lower first and second folding target panels constituting a side wall of a foldable container, A first pillar integrally connected to both ends of the first folding target panel with a second folding target panel interposed therebetween, and a second pillar integrally connected to both ends of the second folding target panel with the second folding target panel interposed therebetween; And iii) a hinge pin hingedly coupled to the first and second pillars corresponding to each other and defining a single hinge center axis at a hinge-joining site of the pillars, iv) Wherein the second pillar is integrally connected to both ends of the second pillar and is integrally connected to the second panel to be folded and the other part is connected to the first folding target panel, It can include a hinge housing that is disposed in the target panel and separate.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, the first and second pillars include a base plate and a channel bar type including a pair of side walls vertically connected to both ends of the base plate Lt; / RTI >

In addition, in the hinge unit for a folding container according to an embodiment of the present invention, the first pillar may be inserted into the space between the side walls of the second pillar.

Further, in the hinge unit for a folding container according to an embodiment of the present invention, the hinge unit of the first and second pillars is formed with a hooked end which is obliquely cut from the side wall of each pillar overlapping each other by the base plate .

In the hinge unit for a folding container according to an embodiment of the present invention, when the first and second pillars are extended at 180 degrees, the latching ends are engaged with each other, and the base plate of each pillar is flat You can connect.

Further, in the hinge unit for a folding container according to an embodiment of the present invention, a hinge center axis by the hinge pin may be formed on a sidewall of the pillar overlapping each other at the first and second hinge- have.

In the hinge unit for a folding container according to an embodiment of the present invention, the center axis of the hinge may be eccentrically formed toward the folding direction side of the first and second pillars from the center side of the side wall.

Also, in the hinge unit for a folding container according to an embodiment of the present invention, the hinge housing may have a length corresponding to the length between the second pillars, and may be provided with a pipe having a rectangular cross-sectional shape with both open ends.

Further, in the hinge unit for a folding container according to an embodiment of the present invention, one side of the hinge housing may be integrally connected to the second folding target panel.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, when the first and second pillar are extended 180 degrees on the other side facing one side of the hinge housing, And a sealing panel for sealing between the sealing panel and the sealing member.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, the first and second folding target panels may be continuously formed with concavities and convexities.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, when the first and second pillars are folded at 180 degrees, the concave-convex portions of the respective folding target panels can be concavely and non-concave.

Further, in the hinge unit for a folding container according to an embodiment of the present invention, the hinge pin is fixedly coupled to the first pillar at one side of the hinge-connecting portion of the first and second pillars, And a first hinge pin that is rotatably fitted in the second pillar together with the first hinge pin and protrudes to the inside of one end of the hinge housing.

Further, in the hinge unit for a folding container according to an embodiment of the present invention, the hinge pin is rotatably fitted in the first pillar at the other side of the hinge-connecting portion of the first and second pillars, And a second hinge pin that is fixedly coupled and protrudes to the inside of the other end of the hinge housing.

In the hinge unit for a folding container according to an embodiment of the present invention, one end of the hinge unit is connected to the first hinge pin and the other end of the second pillar is connected to the inside of the hinge housing. .

Further, in the hinge unit for a folding container according to an embodiment of the present invention, the first and second hinge pins may include a head and a pin shaft integrally connected to the head.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, a spline may be formed at an end of the pin shaft.

Further, in the hinge unit for a folding container according to an embodiment of the present invention, a fixing block is splined to the pin shaft of the second hinge pin at the second pillar at the other side of the first and second pillar hinge- And can be fixedly installed.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, the fixing block may be disposed inside the other end of the hinge housing.

In the hinge unit for a folding container according to an embodiment of the present invention, a torsion bar having one end connected to the first hinge pin and the other end connected to the fixed block may be installed inside the hinge housing.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, spline assemblies may be installed at one end and the other end of the torsion bar, respectively.

Further, in the hinge unit for a folding container according to an embodiment of the present invention, the spline coupling member at one end of the torsion bar is connected to a first connecting member provided inside the hinge housing separately from the second pillar, Can be splined together with the pin shafts of the pins.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, the spline coupling body at the other end of the torsion bar may be spline coupled to a second coupling member integrally connected to the fixed block.

In addition, in the hinge unit for a folding container according to an embodiment of the present invention, the first and second connecting members may be formed in a circular pipe shape.

Further, in the hinge unit for a folding container according to the embodiment of the present invention, a spline may be formed on the inner circumferential surfaces of the first and second connecting members.

Since the embodiment of the present invention can improve the structural stability of the entire container by dispersing the total load acting on the hinge pin on the first and second pillars and can withstand a relatively large load with a relatively small hinge capacity, And weight reduction can be achieved.

Further, in the embodiment of the present invention, when the first and second folding target panels are extended at 180 degrees through the first and second pillars, the gap provided between the hinge housing and the first folding target panel is sealed through the sealing panel The watertightness of the folding container can be ensured.

In addition, in the embodiment of the present invention, additional means such as a torsion bar can be applied to the interior of the hinge housing, thereby providing a damping force and a preload when the container is folded and unfolded.

 Furthermore, in the embodiment of the present invention, it is possible to completely fold the first and second folding target panels 180 degrees while minimizing the interference between the first and second pillars, and to prevent the hinge device portion from protruding toward the inside and the outside of the container .

Further, unlike the prior art, the embodiment of the present invention realizes one degree of freedom and the first and second folding target panels can be folded or unfolded 180 degrees together with the first and second pillars about the central axis of the hinge, The operation stability of the battery can be further improved.

These drawings are for the purpose of describing an exemplary embodiment of the present invention, and therefore the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 is a schematic view showing an example of a folding container to which a hinge unit according to an embodiment of the present invention is applied.
FIG. 2A and FIG. 2B are combined perspective views showing a folding state of a folding container to which a hinge unit for a folding container according to an embodiment of the present invention is applied.
3 is an assembled perspective view illustrating an unfolded state of a foldable container to which a hinge unit for a foldable container is applied according to an embodiment of the present invention.
4 is an exploded perspective view of FIG.
5 is a side view showing a folded state of a foldable container to which a hinge unit for a foldable container is applied according to an embodiment of the present invention.
FIG. 6 is a side view showing an unfolded state of a foldable container to which a hinge unit for a foldable container according to an embodiment of the present invention is applied.
7 is a view showing a coupling structure of a first hinge pin applied to a hinge unit for a folding container according to an embodiment of the present invention.
8 is a view illustrating a coupling structure of a second hinge pin applied to a hinge unit for a folding container according to an embodiment of the present invention.
FIG. 9 is a view illustrating a structure for one side of a torsion bar applied to a hinge unit for a folding container according to an embodiment of the present invention.
FIG. 10 is a view showing the other side coupling structure of a torsion bar applied to a hinge unit for a folding container according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

In the following detailed description, the names of components are categorized into the first, second, and so on in order to distinguish them from each other in the same relationship, and are not necessarily limited to the order in the following description.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

It is to be understood that the terms "unit," "means," "portion," "absence," and the like are used herein to refer to a unit of a generic configuration .

1 is a schematic view showing an example of a folding container to which a hinge unit according to an embodiment of the present invention is applied.

Referring to FIG. 1, the hinge unit 100 according to the embodiments of the present invention may be applied to a folding structure including at least one pair of folding objects (hereinafter referred to as "folding target panels"

For example, the hinge unit 100 according to the embodiments of the present invention is a foldable structure in which the side walls can be folded inwardly 180 degrees inwardly or 180 degrees outwardly inwardly without the cargo being loaded Can be applied to the foldable container (1).

Here, the folding container 1 is provided with both side walls 7 between both the bottom body 3 and the roof body 5 to form both side walls. The both side walls 7 can be constituted by at least one first folding target panel 8 located on the upper side and at least one second folding target panel 9 located on the lower side with reference to the drawing .

In this case, the hinge unit 100 for a folding container according to the embodiments of the present invention can hinge the upper and lower first and second folding target panels 8, 9 facing each other.

The hinge unit 100 for a folding container according to the embodiments of the present invention further includes a first folding target panel 8 and a loop body 5 and a second folding target panel 9 and a bottom body 3, It can also be hinged.

However, in the following description, the first and second folding target panels 8 and 9 constituting the side walls 7 of the folding container 1 as the hinging unit 100 for a folding container according to the embodiment of the present invention, An example of combining will be described.

The hinge unit 100 for a folding container according to an embodiment of the present invention includes both side walls 7 of a foldable container 1 and includes a plurality of upper and lower first and second 2 folding target panels 8 and 9 can be hinged to each other. However, as shown in the drawings, for convenience of explanation, an example in which the first and second folding target panels 8, 9 on the upper and lower sides facing each other as a pair are hinged to each other through the hinge unit 100 I will explain.

Further, it should be understood that the protection scope of the present invention is not necessarily limited to hinge-joining the folded portion of the foldable container 1, but may be applied to various types and applications including at least a pair of folding objects The technical idea of the present invention can be applied.

The hinge unit 100 for a folding container according to an embodiment of the present invention as described above is provided with upper and lower first and second folding target panels 8 and 9 constituting both side walls 7 of the foldable container 1 So that the panels 8, 9 can be hinged to each other.

The hinge unit 100 for a folding container according to the embodiment of the present invention has a single rotational degree of freedom unlike the prior art and has a structure capable of smoothly distributing an acting load as a simple structure.

FIGS. 2A and 2B are combined perspective views showing a folding state of a folding container to which a hinge unit for a folding container according to an embodiment of the present invention is applied, FIG. 3 is a perspective view illustrating a folding container hinge unit for a folding container according to an embodiment of the present invention FIG. 4 is an exploded perspective view of FIG. 3. FIG. 4 is an exploded perspective view of the foldable container of FIG.

The hinge unit 100 for a folding container according to an embodiment of the present invention basically includes a first pillar 10, a second pillar 20, hinge pins 30 and 40, and a hinge housing (not shown) 50).

In the embodiment of the present invention, the first pillar 10 is composed of pillars of both side walls 7 together with a second pillar 20 to be described later. And is integrally connected to both ends of the first folding target panel 8. The first pillar 10 may be welded to both ends of the first folding target panel 8.

The first pillar 10 is formed of a channel bar type having a cross section of a "C" shape. The first pillar 10 includes a base plate 11 as a channel bottom surface, a pair of side walls (13).

Here, the first folding target panel 8 is formed of an iron plate constituting the both side walls 7 between the first pillars 10, and is arranged continuously in the vertical direction along the first pillars 10 Thereby forming concave and convex portions 8a.

In the embodiment of the present invention, the second pillar 20 is disposed in correspondence with the first pillar 10, and the second folding target panel 9 is interposed between the second pillar 20 and both ends of the second folding target panel 9 Respectively. The second pillar 20 may be welded to both ends of the second folding target panel 9.

The second pillar 20 is a channel bar type having a cross section of a "C" shape. The second pillar 20 includes a base plate 21 as a channel bottom face, a pair of side walls (23).

The second folding target panel 9 is formed of a steel plate that constitutes the side walls 7 between the second pillars 20 and is arranged continuously in the vertical direction between the second pillars 20 Thereby forming concave and convex portions 9a.

5, the first and second pillars 10 and 20 are coupled to each other in a recessed manner. The first pillars 10 are formed such that the side walls 13 thereof are connected to the second pillars 20, A part of the side wall 23 can be inserted.

That is, when the first and second pillars 10 and 20 are folded 180 degrees together with the first and second folding target panels 8 and 9, the side wall 13 of the first pillar 10 is folded And may be partially inserted and coupled between the side walls 23 of the pillar 20. [

When the first and second pillars 10 and 20 are folded together with the first and second folding target panels 8 and 9 by 180 degrees, the first and second folding panels 8 and 9 The concave and convex portions 8a and 9a can be coupled to each other.

In other words, the protruding portion 8a of the first folding target panel 8 is joined to the groove portion of the concave and convex portion 9a of the second folding target panel 9, The groove portion 8a can be joined to the protruding portion of the concave-convex portion 9a of the second folding target panel 9.

In the embodiment of the present invention, the hinge pins 30 and 40 can be folded 180 degrees together with the first and second pillars 10 and 20 so that the first and second folding target panels 8 and 9 can be folded or unfolded .

The hinge pins 30 and 40 are hinged to the corresponding first and second pillars 10 and 20 so that a single hinge center axis C is formed at the hinge- . That is, the hinge pins 30 and 40 form a single central axis C of the hinge at the hinge-connecting portions of the first and second pillars 10 and 20, and the first and second folding target panels 8, 9). ≪ / RTI >

On the other hand, at the hinge-connecting portions of the first and second pillars 10 and 20 in which the hinge pins 30 and 40 are hinged, the side walls 13 and 23 of the pillars 10 and 20, The center axis C of the hinge can be formed.

6, the hinge center axis C may be eccentrically formed toward the folding direction side of the first and second pillars 10 and 20 from the center side of the side walls 13 and 23 overlapping each other.

The reason for this is to minimize the interference of the pillars 10 and 20 when the first and second pillars 10 and 20 are folded 180 degrees together with the first and second folding target panels 8 and 9 to be. In addition, when the first and second folding target panels 8, 9 are extended 180 degrees together with the first and second pillars 10, 20, the main load concentrated on the hinge pins 30, 1 and the second pillars 10, 20, respectively.

For this, the hinge-connecting portions of the first and second pillars 10 and 20 are provided with hooking slits 20 sloped by the base plates 11 and 21 from the side walls 13 and 23 of the pillars 10 and 20, (15, 25) are formed.

The hooking ends 15 and 25 are engaged with each other when the first and second pillars 10 and 20 are extended 180 degrees together with the first and second folding target panels 8 and 9, The base plates 11 and 21 of the base plates 10 and 20 can be connected in a plane.

Thus, in the embodiment of the present invention, when the first and second pillars 10 and 20 are extended 180 degrees together with the first and second folding target panels 8 and 9, the first and second pillars 10 and 20 The main loads (total load) concentrated on the hinge pins 30 and 40 can be reduced by connecting the base plates 11 and 21 of the pillars 10 and 20 in a planar manner, Can be dispersed to the engaging ends (15, 25).

The hinge pins 30 and 40 described above are hereinafter referred to as a first hinge pin 30 provided at one side of the hinge connecting portion of the first and second pillars 10 and 20 and a second hinge pin 30 provided at the other side of the hinge connecting portion And the second hinge pin 40 will be described separately.

7, the first hinge pin 30 is disposed at one side of the first and second pillars 10 and 20, that is, at one side wall 13 of the first and second pillars 10 and 20, And 23, respectively.

The first hinge pin 30 is inserted into the first hinge hole 17 provided in the side wall 13 of the first pillar 10 and is fixed to the side wall 13 by a fixing member 39 And is rotatably fitted together with the first pillar 10 in the second hinge hole 27 provided in the side wall 23 of the second pillar 20. [

The first hinge pin 30 includes a head 31 and a pin shaft 33 integrally connected to the head 31. A spline 35 is formed at the end of the pin shaft 33. The head 31 is fitted and fixed to the fixing member 39 and the pin shaft 33 is fixed to the first and second hinge holes 17 and 27 through the fixing member 39 and the side walls 13 , 23), and is disposed between the first and second folding target panels (8, 9). At this time, the first hinge pin 30 supports the first pillar 10 in the first hinge hole 17 and the second pillar 10 rotates together with the first pillar 10 in the second hinge hole 27, 33 is formed between the head 31 and the spline 35. The outer circumferential surface is formed between the head 31 and the spline 35. [

8, the second hinge pin 40 is disposed on the other side of the first and second pillars 10 and 20, that is, on the other side of the first and second pillars 10 and 20, (13, 23).

The second hinge pin 40 is rotatably fitted in the first hinge hole 17 provided in the side wall 13 of the first pillar 10 and is provided on the side wall 23 of the second pillar 20. [ And is fixedly coupled to the second hinge hole 27 formed in the second hinge hole.

The second hinge pin 40 includes a head 41 and a pin shaft 43 integrally connected to the head 41. A spline 45 is formed at an end of the pin shaft 43. The head 41 supports the side wall 13 of the first pillar 10 and the pin shaft 43 is fitted to the first and second hinge holes 17 and 27.

The pin shaft 43 protrudes outside the side walls 13 and 23 and is disposed between the first and second target panels 8 and 9. The pin shaft 43 is disposed outside the side wall 23 of the second pillar 20 And can be fitted and fixed to the fixing block 49 integrally provided. At this time, the pin shaft 43 is fitted in the fixing block 49 and is spline-coupled with the fixing block 49 through the spline 45. That is, a spline 49a, which can be splined to the spline 45 of the pin shaft 43, is formed at a portion where the pin shaft 43 of the fixing block 49 is inserted.

The second hinge pin 40 supports the second pillar 20 in the second hinge hole 27 and supports the second pillar 20 in the first hinge hole 17 so as to support the rotation of the first pillar 10. [ And an outer circumferential surface is formed between the head 41 and the spline 45 of the shaft 43.

In the embodiment of the present invention, the hinge housing 50 is provided between the first and second folding target panels 8 and 9 corresponding to the folding target panels 8 and 9 and the first and second pillar 10 And 20, respectively.

The hinge housing 50 accommodates the protruding portions of the first and second hinge pins 30 and 40 and the fixing block 49 and forms an inner space for installing the torsion bar 70 to be described later have.

That is, the protruding portion of the first hinge pin 30 is disposed inside one end of the hinge housing 50, the protruding portion of the second hinge pin 40 and the fixing block 49 are located at the other end of the hinge housing 50 Respectively.

The hinge housing 50 is disposed along the hinge center axis C between the first and second target panels 8 and 9 corresponding to each other. Both ends of the hinge housing 50 are integrally connected to the second pillar 20 between the second pillar 20 and one end of the hinge housing 50 is integrally formed with the second folding target panel 9 And the other part is disposed separately from the first folding target panel 8 (the lower end in Fig. 4).

Specifically, the hinge housing 50 has a length corresponding to the length between the second pillars 20, and has a rectangular cross-sectional shape with open ends. One side of the hinge housing 50 is integrally connected to the second folding target panel 9 (the upper end in Fig. 4).

When the first and second pillars 10 and 20 are extended 180 degrees together with the first and second folding target panels 8 and 9 on the other side of the hinge housing 50 facing one side, And a sealing panel 51 for sealing between the first folding target panel 8 and the first folding target panel 8 are integrally connected.

When the first and second folding target panels 8 and 9 are folded at 180 degrees through the first and second pillars 10 and 20, the sealing panel 51 is folded to the hinge housing 50, The gap provided between the other surface of the hinge housing 50 and the first folding target panel 8 can be sealed so that the panels 8 do not interfere with each other. The sealing panel 51 has a width corresponding to the gap and is provided in a shape corresponding to the first folding target panel 8.

Meanwhile, in the embodiment of the present invention, in the process of folding the first and second folding target panels 8 and 9 together with the first and second pillars 10 and 20 by 180 degrees, And a torsion bar 70 for providing the first and second folding target panels 8 and 9 through the second pillars 10 and 20.

In the embodiment of the present invention, the torsion bar 70 is elastically deformed in the process of spreading the first and second folding target panels 8 and 9 together with the first and second pillars 10 and 20 at 180 degrees. The unloading force of the energy can be provided to the first and second folding target panels 8 and 9 through the first and second pillars 10 and 20.

This torsion bar 70 is rotated one end of the torsion bar 70 and does not rotate at the other end so that the first and second folding panels 8 and 9 together with the first and second pillars 10 and 20 are folded 180 degrees , Elastic energy can be accumulated while twisting occurs. Accordingly, the torsion bar 70 can provide the damping force and the preload of the elastic energy to the first and second folding target panels 8 and 9 through the first and second pillars 10 and 20 .

The torsion bar 70 is installed inside the hinge housing 50 and has one end connected to the first hinge pin 30 and the other end connected to the second pillar 20 Respectively.

Specifically, a spline coupling body 71 is provided at one end and the other end of the torsion bar 70, respectively. The spline coupling body 71 at one end is connected to the first hinge pin 30, Is connected to the fixed block 49 mentioned above. The spline coupler 71 has a spline formed on the outer peripheral surface thereof and is fixedly fitted to one end and the other end of the torsion bar 70.

9, the spline coupler 71 at one end of the torsion bar 70 is connected to the first connecting member 81 provided inside the hinge housing 50 separately from the second pillar 20, And is spline-coupled with the pin shaft 33 of the one-hinge pin 30.

The first connecting member 81 has a circular pipe shape. A spline 83 is formed on the inner circumferential surface of the first linking member 81. The spline 35 provided on the pin shaft 33 of the first hinge pin 30 and the spline coupling member 71 on one end of the torsion bar 70 are spline coupled to the spline 83 of the first linking member 81 . That is, the pin shaft 33 of the first hinge pin 30 and the spline coupling body 71 at one end of the torsion bar 70 can be inserted into the first coupling member 81 and spline coupled.

10, the spline coupling body 71 at the other end of the torsion bar 70 is spline coupled to the second coupling member 91 integrally connected to the fixed block 49. As shown in FIG. The second connecting member 91 is formed in a circular pipe shape. A spline 93 is formed on the inner circumferential surface of the second linking member 91. The spline coupling member 71 at the other end of the torsion bar 70 is spline-coupled to the spline 93 of the second linking member 91. That is, the spline coupling body 71 at the other end of the torsion bar 70 is inserted into the second coupling member 91 and can be splined.

Hereinafter, the operation and effect of the hinge unit 100 for a folding container according to an embodiment of the present invention will be described in detail with reference to the drawings.

First and second folding target panels 8 and 9 constituting the side walls 7 of the folding container 1 are folded together with the first and second pillars 10 and 20 And can be extended 180 degrees around the hinge center axis C formed by the first and second hinge pins 30 and 40.

When the first and second folding panels 8 and 9 are extended 180 degrees together with the first and second pillars 10 and 20 as described above, The hooking ends 15 and 25 of the pillars 10 and 20 are engaged with each other and are connected to the base plates 11 and 21 of the pillars 10 and 20 in a planar manner.

Therefore, in the embodiment of the present invention, the engagement ends 15, 25 of the first and second pillars 10, 20 are in contact with each other and the base plates 11, 21 of the pillars 10, So that the main load concentrated on the first and second hinge pins 30 and 40 can be dispersed by the engaging ends 15 and 25.

In addition, in the embodiment of the present invention, the hinge center axis C at the hinge-joining portions of the first and second pillars 10 and 20 extends from the center of the side walls 13 and 23 to the first and second pillars 10 and 20 The main load concentrated on the first and second hinge pins 30 and 40 can be more smoothly dispersed by the engaging ends 15 and 25.

Accordingly, the hinge unit 100 for a folding container according to the embodiment of the present invention can reduce the total load applied to the hinge pins 30 and 40 to the first and second pillars 10 and 20, The stability can be improved.

The hinge unit 100 for a folding container according to an embodiment of the present invention can reduce the total load applied to the hinge pins 30 and 40 to the first and second pillars 10 and 20, It is possible to withstand a comparatively large load, so that the structure can be simplified and the weight can be reduced.

Further, in the embodiment of the present invention, when the first and second folding target panels 8 and 9 are extended 180 degrees through the first and second pillars 10 and 20, the hinge housing 50 and the first folding Since the gap provided between the target panels 8 can be sealed through the sealing panel 51, the watertightness of the foldable container 1 can be ensured.

In the embodiment of the present invention, the first and second folding target panels 8 and 9 constituting the side walls 7 of the folding container 1 together with the first and second pillars 10 and 20 And may be folded 180 degrees about the hinge center axis C formed by the first and second hinge pins 30,

When the first and second folding panels 8 and 9 are folded 180 degrees together with the first and second pillars 10 and 20 as described above, the first hinge pin 30 is attached to the first pillar 10, The first hinge pin 30 is rotated together with the first pillar 10. In this case, Since the second hinge pin 40 is fixed to the second pillar 20, the second hinge pin 40 supports the rotation of the first pillar 10.

When the first and second pillars 10 and 20 are folded together with the first and second folding target panels 8 and 9 by 180 degrees, the side wall 13 of the first pillar 10 is folded The recessed portions 8a and 9a of the first and second target panels 8 and 9 are concavely and convexly coupled with each other. Therefore, in the embodiment of the present invention, the first and second folding target panels 8 and 9 can be completely folded at 180 degrees.

In this process, in the embodiment of the present invention, one end of the torsion bar 70 is fixed to the first hinge pin 30 and rotates together with the first pillar 10, and the other end of the torsion bar 70 is connected to the second Is fixed to the fixing block 49 of the pillar 20 and does not rotate so that the torsion bar 70 is twisted to accumulate elastic energy.

Therefore, in the embodiment of the present invention, the first and second folding panels 8 and 9 are folded together with the first and second pillars 10 and 20 at 180 degrees, The damping force of the elastic energy can be provided to the first and second folding target panels 8 and 9 through the first and second pillars 10 and 20.

Further, in the embodiment of the present invention, the center axis C of the hinge at the hinge-joining portions of the first and second pillars 10 and 20 extends from the center of the side walls 13 and 23 to the first and second pillars 10 and 20, 20 when the first and second pillars 10, 20 are folded together with the first and second folding target panels 8, 9 by 180 degrees, the pillar 10, 20 Can be minimized.

Meanwhile, in the embodiment of the present invention, the first and second hinge pins 30 and 40 are formed at the hinge joint portions of the first and second pillars 10 and 20 and form a single hinge center axis C The first and second pillars 10 and 20 can be folded or unfolded at 180 degrees with respect to the first and second folding target panels 8 and 9 to realize one degree of freedom.

In the embodiment of the present invention, unlike the prior art, the first and second pillars 10 and 20 are mounted on the first and second folding target panels 8 and 9 together with the first and second pillars 10 and 20 around the center axis C of the hinge, , 9) can be folded or unfolded at 180 degrees, so that the operational stability of the hinge device can be further improved.

In the embodiment of the present invention, when the first and second folding target panels 8 and 9 together with the first and second pillars 10 and 20 are fully opened at 180 degrees, the first and second pillars 10 and 20, 20 of the pillar 10 and 20 are in contact with each other and the base plates 11 and 21 of the pillars 10 and 20 are connected to each other in a planar manner so that the hinge unit does not protrude outside the container.

In the embodiment of the present invention, since the hinge pins 30 and 40 are provided on the side wall portions of the first and second pillars 10 and 20, the first and second folding target panels 8 and 9 are disposed at 180 degrees When folded or folded, the hinge device portion does not protrude to the inside of the container.

Further, in the embodiment of the present invention, during the process of expanding the first and second folding target panels 8 and 9 together with the first and second pillars 10 and 20 at 180 degrees, (Unfolding force) of elastic energy to the first and second folding target panels 8, 9 through the first and second pillars 10, 20.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Other embodiments may easily be proposed by adding, changing, deleting, adding, etc., but this is also within the scope of the present invention.

1 ... Foldable container 3 ... Bottom
5 Loop body 7 Side wall
8 ... first folding target panel 9 ... second folding target panel
8a, 9a ... concave and convex portion 10 ... first pillar
11, 21 ... base plate 13, 23 ... side wall
15, 25 ... Hanging end 17 ... First hinge hole
20 ... 2nd pillar 27 ... 2nd hinge hole
30 ... first hinge pin 31, 41 ... head
33, 43 ... pin shaft 39 ... fixed member
35, 45, 49a, 83, 93 ... spline 40 ... second hinge pin
49 ... fixed block 50 ... hinge housing
51 ... Sealing panel 70 ... Torsion bar
71 ... spline coupling body 81 ... first connecting member
91 ... second connecting member C ... hinge center axis

Claims (14)

A hinge unit for a folding container for hinging at least one upper and lower first and second folding target panels constituting sidewalls of a foldable container,
A first pillar integrally connected to both ends of the first folding target panel with the first folding target panel interposed therebetween;
A second pillar integrally connected to both ends of the second folding target panel with the second folding target panel interposed therebetween;
A hinge pin hingedly coupled to the first and second pillars corresponding to each other and defining a single hinge center axis at a hinge connection portion of the pillars; And
Wherein the first and second folding target panels are arranged along the central axis of the hinge between the first and second folding target panels corresponding to each other, both ends of the second pillar are integrally connected, one part is integrally connected with the second folding target panel, And a hinge housing having one portion disposed separately from the first folding target panel,
Wherein the first and second pillars comprise a base plate and a channel bar type including a pair of side walls vertically connected to both ends of the base plate, the first pillar being insertable between the side walls of the second pillar And a hinge unit for a folding container. delete The method according to claim 1,
Wherein the first and second pillar hinge-connecting portions are formed with hooking ends which are cut obliquely to the base plate at side walls of the pillar overlapping each other,
Wherein the latching ends are engaged with each other when the first and second pillars are opened at 180 degrees, and the base plate of each pillar is connected in a planar manner. The method according to claim 1 or 3,
Wherein a hinge center axis of the hinge pin is formed on a sidewall of each of the pillars that are overlapped with each other at a hinge connection portion of the first and second pillars,
Wherein the hinge center axis is eccentrically formed toward the folding direction side of the first and second pillars at the center side of the side wall. The method according to claim 1,
The hinge housing includes:
Wherein the hinge unit comprises a tubular member having a length corresponding to the length of the second pillar and having a rectangular cross-sectional shape with open ends. 6. The method of claim 5,
One side of the hinge housing is integrally connected to the second folding target panel,
And a sealing panel for sealing between the first and second pillars and the first folding target panel when the first and second pillars are extended 180 degrees are integrally connected to the other face of the hinge housing facing one side. Hinge unit for container. The method according to claim 1,
The first and second folding target panels are continuously formed with concavities and convexities,
Wherein when the first and second pillars are folded at 180 degrees, the concave and convex portions of the respective folding target panels are mutually unevenly connected. The method according to claim 1,
The hinge pin
A first pillar fixedly coupled to the first pillar at one side of the first and second pillar hinges and rotatably fitted in the second pillar with the first pillar, 1 hinge pin,
And a second hinge pin that is rotatably fitted in the first pillar at the other side of the first and second pillar hinge connection parts and is fixedly coupled to the second pillar and projects inside the other end of the hinge housing,
And a hinge unit for the folding container. 9. The method of claim 8,
On the inside of the hinge housing,
And a torsion bar having one end connected to the first hinge pin and the other end connected to the second pillar. 9. The method of claim 8,
Wherein the first and second hinge pins include a head and a pin shaft integrally connected to the head, wherein a spline is formed at an end of the pin shaft. 11. The method of claim 10,
Wherein a fixing block for spline-coupling with a pin shaft of the second hinge pin is fixedly secured to the second pillar at the other side of the first and second pillar hinge-
And the fixing block is disposed inside the other end of the hinge housing. 12. The method of claim 11,
On the inside of the hinge housing,
And a torsion bar having one end connected to the first hinge pin and the other end connected to the fixed block. 13. The method of claim 12,
A spline coupling member is provided at one end and the other end of the torsion bar,
Wherein the one end of the spline coupling member is spline coupled with a pin shaft of the first hinge pin to a first coupling member provided inside the hinge housing separately from the second pillar,
And the spline coupling body at the other end is splined to a second coupling member integrally connected to the fixed block. 14. The method of claim 13,
Wherein the first and second connection members are formed in a circular pipe shape,
And a spline is formed on an inner peripheral surface of the first and second connecting members.
KR1020150170232A 2015-12-01 2015-12-01 Hinge unit of foldable container KR101749490B1 (en)

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WO2021006444A1 (en) * 2019-07-09 2021-01-14 한국파렛트풀(주) Foldable container including torsion bar module for collapsing side panel

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Publication number Priority date Publication date Assignee Title
KR102002434B1 (en) * 2019-01-23 2019-07-23 한국파렛트풀(주) Method for installing torsion bar for rotation of front panel/rear panel in foldable container
CN111059427B (en) * 2019-10-23 2021-11-30 合肥兰舟智能科技有限公司 Accomodate folding mechanism

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KR101375806B1 (en) * 2013-10-07 2014-03-26 한국컨테이너풀 주식회사 Sliding door type foldable container
KR101489626B1 (en) * 2014-08-27 2015-02-04 한국컨테이너풀 주식회사 Foldable container having hybrid hinge system

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KR101375806B1 (en) * 2013-10-07 2014-03-26 한국컨테이너풀 주식회사 Sliding door type foldable container
KR101489626B1 (en) * 2014-08-27 2015-02-04 한국컨테이너풀 주식회사 Foldable container having hybrid hinge system

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Publication number Priority date Publication date Assignee Title
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