WO2020173312A1 - 可折叠容器 - Google Patents

可折叠容器 Download PDF

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Publication number
WO2020173312A1
WO2020173312A1 PCT/CN2020/075273 CN2020075273W WO2020173312A1 WO 2020173312 A1 WO2020173312 A1 WO 2020173312A1 CN 2020075273 W CN2020075273 W CN 2020075273W WO 2020173312 A1 WO2020173312 A1 WO 2020173312A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting rod
extension
sides
base
container according
Prior art date
Application number
PCT/CN2020/075273
Other languages
English (en)
French (fr)
Original Assignee
上海鸿研物流技术有限公司
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 上海鸿研物流技术有限公司 filed Critical 上海鸿研物流技术有限公司
Priority to EP20763368.6A priority Critical patent/EP3932821A4/en
Priority to US17/434,392 priority patent/US11820549B2/en
Publication of WO2020173312A1 publication Critical patent/WO2020173312A1/zh

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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/1833—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected whereby all side walls are hingedly connected to the base panel
    • 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
    • B65D19/02—Rigid pallets with side walls, e.g. box pallets
    • B65D19/06—Rigid pallets with side walls, e.g. box pallets with bodies formed by uniting or interconnecting two or more components
    • B65D19/18—Rigid pallets with side walls, e.g. box pallets with bodies formed by uniting or interconnecting two or more components made wholly or mainly of plastics material
    • 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
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00034—Plastic
    • 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
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00069—Plastic
    • 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
    • B65D2519/00009—Materials
    • B65D2519/00154—Materials for the side walls
    • B65D2519/00174—Plastic
    • 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
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
    • 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
    • B65D2519/00547—Connections
    • B65D2519/00577—Connections structures connecting side walls, including corner posts, to each other
    • B65D2519/00582—Connections structures connecting side walls, including corner posts, to each other structures intended to be disassembled, i.e. collapsible or dismountable
    • 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
    • B65D2519/00547—Connections
    • B65D2519/00636—Connections structures connecting side walls to the pallet
    • B65D2519/00641—Structures intended to be disassembled
    • B65D2519/00646—Structures intended to be disassembled by means of hinges
    • B65D2519/00656—Structures intended to be disassembled by means of hinges separately formed
    • 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
    • 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
    • B65D2519/00865—Collapsible, i.e. at least two constitutive elements remaining hingedly connected
    • B65D2519/00875—Collapsible, i.e. at least two constitutive elements remaining hingedly connected collapsible side walls
    • B65D2519/009—Collapsible, i.e. at least two constitutive elements remaining hingedly connected collapsible side walls whereby all side walls are hingedly connected to the base panel

Definitions

  • the present invention relates to a foldable container, in particular to a thin-plate foldable container with a self-resetting structural hinge. Background technique
  • Collapsible containers especially plastic collapsible containers, are being used more and more in modern warehousing, logistics, packaging, retail display and other industries because of their recyclable, moisture-resistant, and long-life characteristics are gradually being promoted It is a substitute for wooden and paper containers.
  • the foldable feature further reduces the recycling and storage space required when the box is empty, saving a lot of related costs. Therefore, the development, manufacturing, and use of foldable containers can not only save costs for related industries, but are also of great significance to energy conservation and environmental protection.
  • plastic foldable containers as an example. Most of these containers have a bottom and two sets of opposite side panels. An optional side panel also has a small door that can be opened. The lower end of the side panel is rotatably connected with the base using a hinge structure.
  • the first conventional design is that the hinge is a fixed hinge, and the height position of the side panel increases according to the folding sequence, so that the two pairs of side panels can be parallel to each other after folding The superimposed on the base.
  • the disadvantage of this is that the operator needs to fold or open the side panels in strict accordance with the established order, and the shape of each side panel is different, which is inconvenient to use and manufacture.
  • An improved fixed hinge structure is that the hinges of the two opposite side panels are set at the same height, the first side panel is folded at an angle relative to the base, and the second side panel lies on the second side panel when folded. A side panel and parallel to the base surface of the base. The effect of this is that the order of the two side panels is no longer required when folded, but the side panels cannot be parallel to each other after folding.
  • This solution solves the problems of convenience in operation and manufacturing, but the height of the cabinet after folding cannot reach the optimum.
  • the inventor has proposed a novel hinge structure for a foldable container, the patent number is CN201510229497.9.
  • This patent uses a principle similar to a cam mechanism, relying on the matching of the mating surface on the base and the curved contours of the side plate to make the hinge axis of the side plate move up and down vertically during the folding or unfolding rotation process, so that the side plates can mutually move. Fold in parallel on the base.
  • the hinge structure of the above-mentioned collapsible container has certain limitations: Since this structure relies on the matching of the curved profile of the side plate extension with the mating surface on the base groove, this requires the side plate or the base to have a thickness on the hinge structure ( The thickness is not less than 33mm), otherwise the component force generated by the structure will cause the side plate to be easily stuck during the turning operation. With the continuous improvement of modern craft materials, the foldable container is also developing in the direction of lightness and thinness. Therefore, the art needs a hinge suitable for thin-plate foldable containers. Summary of the invention
  • the purpose of the present invention is to provide a thin-plate foldable container with a simple structure and capable of laying and folding the foldable side panels of the container flat.
  • the present invention provides a foldable container, comprising a base and two pairs of side plates, the two pairs of side plates are hinged to the edges of the base and can be folded relative to the base, characterized in that:
  • the foldable container further includes a connecting rod, the lower edges of at least one of the two pairs of side plates are provided with extensions, and the corresponding edges of the base are provided with extensions extending perpendicular to the base, so
  • the protruding portion is provided with an opening, the opening is open toward the inside of the container and toward the top end of the protruding portion, one end of the connecting rod is pivotally connected to the bottom end of the opening, and The other end of the connecting rod is slidably connected with the top end of the extension part in a direction perpendicular to the base.
  • the extension portion is provided with a longitudinal groove that penetrates the thickness of the extension portion and opens toward the bottom end of the extension portion, and the top end of the longitudinal groove and the other end of the connecting rod are slidable Ground rotation connection.
  • the foldable container is provided with a plurality of the extension portions spaced apart from each other, a plurality of the opening portions spaced apart from each other, and a corresponding number of connecting rods.
  • the lower edge of at least one of the two pairs of side plates is further provided with another extension portion, and the extension portion is provided with another open portion, and the other open portion faces the The inside of the container is opened toward the top end of the extension part, and the other extension part is slidably connected to the opening part in a rotating manner.
  • the other extension portion is provided with another longitudinal groove that penetrates the thickness of the extension portion and opens toward the bottom end of the extension portion, and hinges are provided on both sides of the bottom end of the longitudinal groove.
  • the other open portion is provided with two elongated open grooves formed on both sides by longitudinally extending retaining ribs with a "T" shape in cross section, and the hinge pins are respectively accommodated in the two elongated grooves. Inside the bar-shaped open groove.
  • the extension portion is provided with a longitudinal groove penetrating the thickness of the extension portion and opening toward the bottom end of the extension portion, and the opening portion is provided with a corresponding pair of longitudinal retaining ribs, and
  • the width between the opposite surfaces of the blocking rib is less than or equal to the width of the longitudinal groove, the lower end of the longitudinal blocking rib is hinged to one end of the connecting rod, and the top end of the longitudinal groove and the other end of the connecting rod can be Sliding rotation connection.
  • the lower ends of the pair of longitudinal ribs are provided with hinge holes, and one end of the connecting rod is provided with hinge pins protruding to both sides.
  • the top end of the longitudinal groove is provided with elongated grooves on both sides, and the other end of the connecting rod is provided with a hinge pin protruding to both sides.
  • the top end of the longitudinal groove is provided with hinge pins on both sides, and the other end of the connecting rod is provided with elongated grooves on both sides.
  • the lower ends of the pair of longitudinal ribs are provided with hinge holes
  • the top ends of the longitudinal grooves are provided with elongated grooves on both sides
  • both ends of the connecting rod are provided with two sides facing each other. Hinge pin extended.
  • the lower ends of the pair of longitudinal ribs are provided with hinge holes
  • the top ends of the longitudinal grooves are provided with hinge pins on both sides
  • one end of the connecting rod is provided with hinges extending from both sides Pin
  • the other end of the connecting rod is provided with elongated grooves on both sides.
  • the connecting rod includes two pairs of elastic arms extending toward both ends, and the hinge pins are respectively arranged on the outer sides of the two pairs of elastic arms.
  • the extension portion has cut-out portions on at least one side of both sides of the top, and the open portion has shoulder portions on at least one side corresponding to the two sides of the top portion, and the shoulder portions can be accommodated in The cutting part.
  • the cut-out portion and the shoulder portion are complementary in shape.
  • the length of the extension part in a direction perpendicular to the base is equal to the depth of the opening part in the direction.
  • the thickness of the extension portion is smaller than the thickness of the side plate.
  • the opposite side plate can be conveniently and quickly placed on the base through a simple and reliable hinge structure, and the foldable container can be made into a thin-walled foldable container.
  • Fig. i is a perspective view of a collapsible container according to an embodiment of the present invention can be used.
  • Figure 2 is a partial exploded perspective view of a collapsible container according to an embodiment of the present invention.
  • Fig. 3 is a side cross-sectional view of a self-resetting hinge part of a foldable container according to an embodiment of the present invention.
  • Fig. 4 is a partial enlarged view of the opening on the base of the collapsible container according to an embodiment of the present invention.
  • Fig. 5 is an enlarged perspective view of an extension part of a side plate of a foldable container according to an embodiment of the present invention.
  • Fig. 6 is a perspective view of a connecting rod of a self-resetting hinge of a foldable container according to an embodiment of the present invention.
  • Fig. 7 is a perspective view of an extension part and a connecting rod of a self-resetting hinge of a foldable container according to another embodiment of the present invention.
  • Fig. 8 is a cross-sectional view of the self-resetting hinge part of the foldable container according to an embodiment of the present invention, taken along the longitudinal center plane of the connecting rod.
  • Figures 9a-9c are schematic diagrams of the folding process of the first folded side panel of a set of opposite side panels of a collapsible container according to an embodiment of the present invention, wherein Figure 9a shows a schematic diagram of the first folded side panel in an upright position, and Figure 9b It shows a schematic diagram of the side panel folded first in an inclined position, and FIG. 9c shows a schematic diagram of the side panel folded first in a flat position.
  • Figures 10a to 10d are schematic diagrams of the folding process of the second folded side panel in a set of opposite side panels of the foldable container according to an embodiment of the present invention, wherein Figure 10a shows a schematic diagram of the second folded side panel in an upright position, Figure 10b shows a schematic diagram of the second folded side panel tilted to abut against the first folded side panel, Figure 10c shows a schematic diagram of the second folded side panel continuing to tilt relative to the first folded side panel, Figure 10d shows the second A schematic diagram of the folded side panel lying flat on the side panel that is folded first.
  • Figure 11a is a schematic diagram of the unfolding process of the second folded side panel relative to the base in a set of side panels opposed to the collapsible container according to an embodiment of the present invention, wherein Figure 11a shows the second folded side panel leaving the first folded side A schematic diagram of the board, Figure 11b shows a schematic diagram of the second folded side board being further upright.
  • a foldable container 100 which includes a base 1 and two pairs of side plates 2, 4.
  • Each pair of side panels 2, 4 is hinged to the edge of the base 1 at the bottom end and can be folded relative to the base 1.
  • the side plates stand upright with respect to the base 1, the side plates are connected to each other, thereby forming the inner volume of the collapsible container 100 together with the base 1.
  • the foldable container 100 can be conveniently stored and transported.
  • One of the side panels, for example, the side panel 2 is optionally provided with a small door 3.
  • the small door 3 can be pivotally opened around the hinge at the lower end, so that the inner volume of the foldable container 100 can be accessed by opening the small door 3.
  • the side panels of the foldable container 100 of the present invention are hingedly connected to the edge of the base 1 using a rotating self-resetting hinge structure.
  • the side plate 2 is connected to the base 1 using this hinge structure.
  • the side plate 4 may also adopt this hinge structure.
  • the partial exploded view of the foldable container 100 in FIG. 2 shows the details of the hinge structure.
  • the foldable container further includes a connecting rod 5.
  • An extension 21 is provided on the lower edge of the side plate 2, and an extension 13 is provided on the corresponding edge of the base 1, and the extension 13 extends upward perpendicular to the base 1.
  • the extension portion 13 is provided with an opening portion 11, which opens toward the inside of the container and toward the top end.
  • the extension part 21 is accommodated in the opening part 11.
  • One end of the connecting rod 5 (the lower end in FIG. 2) is hingedly connected to the bottom end of the opening portion 11, and the other end of the connecting rod 5 (the upper end in FIG. 2) and the top end of the extension 21 are slidably rotatable in the vertical direction connection.
  • FIG. 3 shows a side sectional view of the side plate 2 and the base 1 connected by a connecting rod 5.
  • FIGS. 1 and 2 only one of the above-mentioned rotating and self-resetting hinge structures is shown, but it should be understood that the side plate 2 can be hinged to each other through multiple hinge structures located between the side plate 2 and the base 1. It should also be understood that the above-mentioned rotating and self-resetting hinge structure can also be combined with other hinge structures provided between the side plate 2 and the base 1 to realize the hinged connection between the two.
  • another extension 22 is provided on the lower edge of the side plate 2
  • a corresponding opening 12 is provided on the extension 13 of the base 1.
  • the extension portion 22 is provided with a hinge pin 221, and the opening portion 12 is provided with two long ribs formed on both sides by longitudinally extending retaining ribs with a "T" shape in cross section.
  • the hinge pin 221 can rotate in the groove 121 and slide up and down.
  • the rotary self-resetting hinge structure of the present invention can be used in combination with any known hinge structure.
  • the hinge structure including the extension portion 22 and the opening portion 12 is not a necessary structure, but it can provide a more stable support for the side plate 2 during the rotation process, and when the side plate 2 is in the unfolded vertical state, Can restrict its left and right movement.
  • the rotating self-resetting hinge structure adopted by the extension part 21 and the opening part 11 only needs to be arranged at the extreme ends of the multiple extension parts of the side plate 2 to meet the functional requirements of the side plate 2.
  • the thickness of the extension 13 is approximately the same as the thickness of the side plate 2, and its size can be set below 30mm to still ensure the connection strength of the container. It can be imagined that some special In an application scenario, designing the thickness of the connecting rod 5 to be the same thickness as the side plate 2 can further reduce the requirement on the thickness of the side plate 2. Also preferably, the longitudinal length of the extension part 21 is equal to or slightly smaller than the longitudinal depth of the opening part 11. It is also preferable that the thickness of the extension portion 21 is smaller than the thickness of the side plate 2, and is more preferably equal to or slightly smaller than the size of the opening portion 11 in the horizontal direction. Therefore, when the side plate 2 is in an upright state, the extension portion 21 can be accommodated in the opening portion 11 and form a substantially flat container inner wall.
  • the extension 21 in order to restrict the side plate 2 from moving upward relative to the base 1 when in use, that is, to prevent the extension 21 from falling out of the opening 11, the extension 21 is provided with cutouts 215 on both sides of the top (see FIG. 5), and the opening portion 11 has a shoulder portion 113 on at least one side corresponding to both sides of the top (see FIG. 4), and the shoulder portion 113 can be accommodated in the cutout portion 215.
  • the shapes of the cut-out portion 215 and the shoulder portion 113 are complementary.
  • the shoulder portion 113 On the side When the board 2 is upright, the shoulder portion 113 is located in the cut-out portion 215.
  • a hanging stand 213 is formed on the extension part 21 adjacent to the cutout part 215, and the hanging stand 213 is located below the cutout part 215, as shown in FIG. 5.
  • the longitudinal length of the hanging table 213 in FIG. 5 is only illustrative, and the longitudinal length of the hanging table 213 can be set as required.
  • the hanging platform 213 is opposite to the cut-out portion 215
  • the adjacent part is provided with a guiding slope 214, and the lower edge of the shoulder portion 113 is also provided with a guiding slope 114.
  • extension portion 21 and the opening portion 11 are each provided with a pair of cutout portions 215 and a pair of shoulder portions 113, but it should be understood that only one cutout portion 215 and corresponding One shoulder portion 113 of the two sides can also achieve the effect of preventing the extension portion 21 from falling out of the opening portion 11 from above and facilitating the side plate 2 to be more smoothly seated during the erection process.
  • the extension portion 21 is provided with a longitudinal groove 21 1 penetrating the thickness of the extension portion 21, and the opening portion 11 is provided with a pair of longitudinal ribs 111.
  • the width between the opposite surfaces of the pair of ribs 111 is less than or equal to the width of the longitudinal groove 211, so that when the extension portion 21 is located in the open portion 11, the pair of longitudinal ribs 111 is located in the longitudinal groove 211.
  • the lower end of the longitudinal rib 111 is hinged to the lower end of the connecting rod 5, and the top end of the longitudinal groove 211 is slidably connected to the upper end of the connecting rod 5.
  • the top end of the longitudinal groove 211 is provided with elongated grooves 212 located on opposite sides, and the upper end of the connecting rod 5 is provided with hinges extending from opposite sides.
  • the pin 54 (see FIG. 6), the hinge pin 54 can be installed in the elongated groove 212 and can slide and rotate in the elongated groove 212.
  • the top end of the longitudinal groove 211 is provided with hinge pins 217 on opposite sides, and the upper end of the connecting rod 5 is provided with elongated grooves 56 extending on opposite sides.
  • the key I pin 217 can be installed in the elongated groove 56 and can slide and rotate in the elongated groove 56.
  • a hinge hole 112 is provided at the lower end of the pair of longitudinal ribs 111, and a hinge pin 52 protruding to both sides is provided at the lower end of the connecting rod 5 (see FIG. 6), and the hinge pin 52 can be installed in the hinge hole 112. It can be rotated inside the hinge hole 112.
  • a hinge pin is provided at the lower end of the pair of longitudinal ribs 111, and the lower end of the connecting rod 5 is provided with hinge holes on both sides.
  • the hinge pin 52, 54 or 217 may be provided with a guiding inclined surface.
  • only one longitudinal groove 211 is provided in the extension portion 21, and only a pair of longitudinal ribs 111 are provided in the opening portion 11, and the two are connected by a connecting rod 5, but it should be understood that More than one corresponding number of longitudinal grooves 211 and pairs of longitudinal ribs 111 are provided in one extension part 21 and opening part 11, which are connected by a corresponding number of connecting rods 5.
  • FIG. 6 A perspective view of the connecting rod 5 is shown in FIG. 6.
  • the connecting rod 5 includes a middle section 55, a pair of elastic arms 51 extending from the middle section 55 to the lower end, and a pair of elastic arms 53 extending from the middle section 55 to the upper end.
  • the hinge pin 52 is provided on the outer side of the elastic arm 51
  • the hinge pin 54 is provided on both sides of the elastic arm 53.
  • the connecting rod 5 is usually made of plastic material, and the connecting rod 5 has elasticity due to the elasticity of the plastic material itself. Therefore, the connecting rod 5 can be detachably connected with the extension part 21 and the opening part 11.
  • the connecting rod 5 can also adopt other structures, as long as it can form a hinged connection with the opening portion 11 at the lower end, and form a sliding rotation connection with the extension portion 21 at the upper end.
  • FIG. 8 shows a side sectional view of the connecting rod 5 taken along the connecting rod 5 after assembling the extension part 21 and the opening part 11.
  • the side plate 2 is in an upright state, the hinge pin 52 is located in the hinge hole 112, and the hinge pin 54 is located in the elongated groove 212.
  • the dimension D shown in the figure is the thickness of the extension 13 of the base 1, which is approximately equal to the thickness of the side plate 2.
  • a longitudinal groove 211 is provided in the middle of the extension portion 21, and a pair of retaining ribs 111 are provided in the middle of the opening portion 11, and the two are connected to each other by the connecting rod 5.
  • the extension part 21 may not be provided with the longitudinal groove 21 1 and the opening part 11 may not be provided as a pair of retaining ribs 11 1.
  • the elongated groove 212 may be provided on both sides of the extension part 21 to connect the hinge hole 112 They are arranged on both sides of the open part, and gaps for accommodating two connecting rods 5 are formed between the two sides of the extension part 21 and the two sides of the open part 11 respectively. At this time, only one hinge pin is provided at the upper end and the lower end of each connecting rod 5.
  • Figures 9a-9c show the folding process of the side panel 2 as the first folded side panel in a set of opposite side panels.
  • FIG. 9a shows a schematic diagram of the first folded side panel in an upright position.
  • the axis of the hinge pin 52 of the connecting rod 5 coincides with the hinge pin 221 on the extension 22 of the side panel 2.
  • the axis is The only axis of rotation around which the side plate 2 rotates.
  • the side plate 2 rotates around it and is parallel to the base 1 (see Figures 9b and 9c), and the same applies during the unfolding operation.
  • Figures 10a-10d show the folding process of the side panel 2 as the second folded side panel in the opposite set of side panels.
  • Figure 10a shows a schematic diagram of the second folded side panel in an upright position.
  • the side panel 2 first rotates around the axis of the hinge pin 52.
  • the side panel 2 touches the opposite side panel that is first folded (see Figure 10b)
  • the side panel 2 will start to rotate with the contact point p as the fulcrum. (Shown in Figure 10c).
  • the lower end of the extension portion 21 moves upward and away from the side wall of the opening portion 11, and the hinge pin 221 of the extension portion 22 also moves upward.
  • the width of the groove 121 is preferably greater than the diameter of the hinge pin 221, so as to allow the hinge pin 221 to perform a certain horizontal movement in the groove 121.
  • the hinge pin 54 of the connecting rod 5 also starts to move to the lower end of the elongated groove 212; while in the case of the embodiment shown in Fig.
  • the hinge pin 217 starts Move to the lower end of the elongated groove 56, when the side panel 2 is folded to be completely parallel to the opposite side panel 2, the hinge pin 54/217 is located at the lower end of the elongated groove 212/56; the connecting rod 5 will restrict the side panel The extension 21 of 2 moves up and to the left to ensure This improves the safety and stability of the side panel 2 after the container is folded.
  • Figure 1 la-1 lb shows the unfolding process of side panel 2 as the second folded side panel in the opposite set of side panels.
  • the side plate 2 rotates around the hinge pin 54 while the connecting rod 5 rotates around the hinge pin 52.
  • the end of the extension 21 of the side plate 2 rotates downward, but due to friction, the hinge pin 54/ 217 does not necessarily move up to the upper part of the elongated groove 212/56 due to the gravity of the side plate 2 sinking.

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

Abstract

一种可折叠容器，包括底座（1）和两对侧板（2），两对侧板（2）铰接至底座（1）的边缘并能够相对于底座折叠（1），可折叠容器还包括连接杆（5），两对侧板（2）中的至少一对侧板的下边缘设有延伸部（21），底座（1）的相应边缘设有垂直于底座延伸的伸出部（13），伸出部设有开放部（11），开放部（11）朝向容器内部并朝向伸出部（13）的顶端开放，连接杆（5）的一端与开放部（11）的底端枢转连接，而连接杆（5）的另一端与延伸部（21）的顶端沿垂直于底座方向可滑动地转动连接。该可折叠容器能够通过简单可靠的铰接结构方便快捷地将相对侧板平放于底座，且可折叠容器可做成薄壁可折叠容器。

Description

可折叠容器 相关申请交叉引用
本专利申请要求于 2019年 02月 27日提交的、 申请号为 201910147351.8、 发 明名称为“可折叠容器” 的中国专利申请的优先权， 上述申请的全文以引用的方式 并入本文中。 技术领域
本发明涉及一种可折叠容器， 具体涉及具有自复位结构铰链的薄板可折叠 容器。 背景技术
可折叠容器尤其是塑胶类可折叠容器， 在现代仓储、 物流、 包装、 零售展 示等各行业被越来越多的使用， 因为它们的可循环使用、 耐潮湿、 长寿命的特 点被逐渐的推广为木制、 纸质容器的替代者。 可折叠的特性更加减少了空箱时 所需的回收和仓储空间， 节省了大量相关成本。 所以可折叠容器的开发、 制造、 使用， 不仅可以为相关行业节约成本， 对节能环保也是极具意义的事情。
以塑胶类可折叠容器为例， 这些容器大都有一个底和两组相对的侧板， 可 选的某个侧板上还具有可以打开的小门。 侧板的下端使用铰链结构可旋转的和 底座连接在一起， 最开始的常规设计是， 铰链为固定式铰链， 其设置的高度位 置按照折叠次序升高， 这样折叠之后两对侧板能够相互平行的叠合在底座上。 这样做的弊端是， 操作者需要严格按照既定次序折叠或打开侧板， 每个侧板的 形状也不相同， 使用和制造均不便利。
一种改进的固定式铰链结构为， 相对的两个侧板其铰链设置的高度相同， 第一块侧板折叠后相对于底座向下倾斜一个角度， 第二块侧板折叠后依躺在第 一块侧板上并且平行于底座基面。 这样的效果是两个侧板折叠时不再有次序要 求， 但折叠后侧板间不能够相互平行。 此方案解决了操作和制造便利性的问题， 但折叠后箱体高度并不能达到最优。
本发明人提出过一种新颖的可折叠容器的铰链结构， 专利号为 CN201510229497.9。 该专利采用类似凸轮机构的原理， 依靠底座上的配合面和 侧板上的曲面轮廓向配合使得侧板在折叠或展开的旋转过程中铰链轴能够竖直 的上下移动， 从而使得侧板可以相互平行的叠合在底座上。
但上述可折叠容器的铰链结构存在一定限制： 由于此结构是依靠侧板伸出 部的曲面轮廓与底座凹槽上的配合面相配合， 这就要求侧板或底座在铰链结构 上具有一个厚度（厚度不小于 33mm） ， 否则该结构产生的分力会导致侧板转开 操作时容易卡住。 随着现代工艺材料的不断提升， 可折叠容器的也朝着轻薄方 向发展， 因此， 本领域需要一种适用于薄板可折叠容器的铰链。 发明内容
本发明的目的是提供一种结构简单， 能够使容器的可折叠相对侧板平放折 叠的薄板可折叠容器。
为实现上述目的， 本发明提供了一种可折叠容器， 包括底座和两对侧板， 所 述两对侧板铰接至所述底座的边缘并能够相对于所述底座折叠， 其特征在于， 所述 可折叠容器还包括连接杆， 所述两对侧板中的至少一对侧板的下边缘设有延伸部， 所述底座的相应边缘设有垂直于所述底座延伸的伸出部， 所述伸出部设有开放部， 所述开放部朝向所述容器内部并朝向所述伸出部的顶端开放， 所述连接杆的一端与 所述开放部的底端枢转连接， 而所述连接杆的另一端与所述延伸部的顶端沿垂直于 所述底座方向可滑动地转动连接。
在一实施例中，所述延伸部上设有贯通所述延伸部厚度并朝向所述延伸部的底 端开放的纵向槽， 且所述纵向槽的顶端与所述连接杆的另一端可滑动地转动连接。
在一实施例中， 所述可折叠容器设有相互间隔开的多个所述延伸部， 相互间隔 开的多个所述开放部， 以及相应数量的连接杆。
在一实施例中， 所述两对侧板中的至少一对侧板的下边缘还设有另一延伸部， 所述伸出部设有另一开放部， 所述另一开放部朝向所述容器内部并朝向所述伸出部 的顶端开放， 所述另一延伸部与所述开放部可滑动地转动连接。
在一实施例中，所述另一延伸部上设有贯通所述延伸部厚度并朝向所述延伸部 的底端开放的另一纵向槽， 所述纵向槽的底端两侧各设有铰链销， 所述另一开放部 设有由横截面呈“T”字形的纵向延伸挡筋在两侧形成的两个长条形开放式凹槽， 所述铰链销分别容纳在所述两个长条形开放式凹槽内。 在一实施例中，所述延伸部上设有贯通所述延伸部厚度并朝向所述延伸部的底 端开放的纵向槽， 所述开放部设有相应的成对纵向挡筋， 所述成对挡筋的相反表面 之间的宽度小于或等于所述纵向槽的宽度， 所述纵向挡筋的下端与连接杆的一端铰 接， 且所述纵向槽的顶端与所述连接杆的另一端可滑动地转动连接。
在一实施例中， 所述成对纵向挡筋的下端设有铰链孔， 所述连接杆的一端设有 向两侧伸出的铰链销。
在一实施例中， 所述纵向槽的顶端设有位于两侧的长条形槽， 所述连接杆的另 一端设有向两侧伸出的铰链销。
在一实施例中， 所述纵向槽的顶端设有位于两侧的铰链销， 所述连接杆的另一 端设有位于两侧的长条形槽。
在一实施例中， 所述成对纵向挡筋的下端设有铰链孔， 所述纵向槽的顶端设有 位于两侧的长条形槽， 所述连接杆的两端各设有向两侧伸出的铰链销。
在一实施例中， 所述成对纵向挡筋的下端设有铰链孔， 所述纵向槽的顶端设有 位于两侧的铰链销， 所述连接杆的一端设有向两侧伸出的铰链销， 所述连接杆的另 一端设有位于两侧的长条形槽。
在一实施例中， 所述连接杆包括朝向分别向两端延伸的两对弹性臂， 所述铰链 销分别设置在所述两对弹性臂的外侧上。
在一实施例中， 所述延伸部在顶部两侧的至少一侧具有挖切部， 而所述开放部 在顶部两侧的对应至少一侧具有台肩部， 所述台肩部可容纳于所述挖切部。
在一实施例中， 所述挖切部与所述台肩部形状互补。
在一实施例中，所述延伸部沿垂直于所述底座方向的长度等于所述开放部沿所 述方向的深度。
在一实施例中， 所述延伸部的厚度小于所述侧板的厚度。
根据本发明的可折叠容器， 能够通过简单可靠的铰接结构方便快捷地将相 对侧板平放于底座， 且可折叠容器可做成薄壁可折叠容器。 附图说明
图 i是可使用根据本发明一实施例的可折叠容器的立体图。
图 2是根据本发明一实施例的可折叠容器的局部分解立体图。
图 3是根据本发明一实施例的可折叠容器的自复位铰链部分的侧剖视图。 图 4是根据本发明一实施例的可折叠容器的底座上开放部的局部放大图。 图 5是根据本发明一实施例的可折叠容器的侧板的延伸部的放大立体图。 图 6是根据本发明一实施例的可折叠容器的自复位铰链的连接杆的立体图。 图 7 是根据本发明另一实施例的可折叠容器的自复位铰链的延伸部和连接 杆的立体图。
图 8 是根据本发明一实施例的可折叠容器的自复位铰链部分沿连接杆纵向 中心平面截取的剖视图。
图 9a~9c 是根据本发明一实施例的可折叠容器相对的一组侧板中首先折叠 的侧板的折叠过程示意图， 其中图 9a示出首先折叠的侧板处于直立位置的示意 图， 图 9b示出首先折叠的侧板处于倾斜位置的示意图， 图 9c示出首先折叠的 侧板处于平放位置的示意图。
图 10a~10d是根据本发明一实施例的可折叠容器相对的一组侧板中第二折 叠的侧板的折叠过程示意图， 其中图 10a示出第二折叠的侧板处于直立位置的 示意图， 图 10b示出第二折叠的侧板倾斜至抵靠首先折叠的侧板的示意图， 图 10c示出第二折叠的侧板相对于首先折叠的侧板继续倾斜的示意图， 图 10d示出 第二折叠的侧板平放在首先折叠的侧板上的示意图。
图 11a 是根据本发明一实施例的可折叠容器相对的一组侧板中第二折叠的 侧板相对于底座的展开过程示意图， 其中图 11a示出第二折叠的侧板离开首先 折叠的侧板的示意图， 图 l ib示出第二折叠的侧板进一步直立的示意图。 具体实施方式
以下将结合附图对本发明的较佳实施例进行详细说明， 以便更清楚理解本发明 的目的、特点和优点。应理解的是， 附图所示的实施例并不是对本发明范围的限制， 而只是为了说明本发明技术方案的实质精神。
在下文的描述中， 出于说明各种公开的实施例的目的阐述了某些具体细节 以提供对各种公开实施例的透彻理解。 但是， 相关领域技术人员将认识到可在 无这些具体细节中的一个或多个细节的情况来实践实施例。 在其它情形下， 与 本申请相关联的熟知的装置、 结构和技术可能并未详细地示出或描述从而避免 不必要地混淆实施例的描述。 除非语境有其它需要， 在整个说明书和权利要求中， 词语 “包括” 和其变 型， 诸如“包含”和“具有”应被理解为开放的、 包含的含义， 即应解释为“包 括， 但不限于” 。
在整个说明书中对 “一个实施例” 或 “一实施例” 的提及表示结合实施例 所描述的特定特点、 结构或特征包括于至少一个实施例中。 因此， 在整个说明 书的各个位置 “在一个实施例中” 或 “在一实施例” 中的出现无需全都指相同 实施例。 另外， 特定特点、 结构或特征可在一个或多个实施例中以任何方式组 合。
如该说明书和所附权利要求中所用的单数形式“一” 和 “所述” 包括复数 指代物， 除非文中清楚地另外规定。 应当指出的是术语“或”通常以其包括“和 /或” 的含义使用， 除非文中清楚地另外规定。
在以下描述中， 为了清楚展示本发明的结构及工作方式， 将借助诸多方向 性词语进行描述， 但是应当将“前”、 “后”、 “左”、 “右”、 “外”、 “内”、 “向夕卜” 、 “向内” 、 “上” 、 “下” 、 “顶” 、 “底” 等词语理解为方便用 语， 而不应当理解为限定性词语。
下文参照附图描述本发明的实施例。 具体参见图 1， 示出了根据本发明的可 折叠容器 100， 包括底座 1和两对侧板 2、 4。 每对侧板 2、 4在底端铰接至底座 1的边缘并能够相对于底座 1折叠。 当各侧板相对于底座 1直立时， 各侧板彼此 连接， 从而与底座 1共同形成可折叠容器 100的内部容积。 而当各侧板相对于 底座 1折叠时， 可折叠容器 100能够方便地存储和运输。 其中一块侧板， 例如 侧板 2上可选地设有小门 3。 小门 3可绕下端的铰链向外枢转打开， 从而能够通 过打开小门 3来触及可折叠容器 100的内部容积。
为了使得侧板在折叠于底座 1 上时能够彼此贴合平放， 本发明的可折叠容 器 100的至少一对侧板采用旋转自复位铰接结构与底座 1 的边缘铰接连接。 在 所示实施例中， 侧板 2采用该铰链结构连接至底座 1。 但应理解， 侧板 4也可采 用该铰链结构。 图 2中可折叠容器 100的局部分解图示出了该铰链结构的细节。 在所示实施例中， 可折叠容器还包括连接杆 5。 在侧板 2 的下边缘设有延伸部 21，而在底座 1的相应边缘设有伸出部 13 ,该伸出部 13垂直于底座 1向上延伸。 该伸出部 13设有开放部 1 1， 该开放部 11朝向容器内部并朝向顶端开放。 当侧 板 2相对于底座 1直立时， 延伸部 21容纳在开放部 11内。连接杆 5的一端（图 2中为下端） 与开放部 11的底端铰接连接， 而连接杆 5的另一端 （图 2中为上 端） 与延伸部 21的顶端沿竖直方向可滑动地转动连接。 图 3中示出了侧板 2和 底座 1通过连接杆 5连接的侧剖视图。 通过该铰链结构， 一对侧板 2中第二折 叠的侧板能够顺利地折叠放置在首先折叠的侧板上， 并相对于首先折叠的侧板 平放贴合。
在图 1和图 2中， 仅示出一个上述旋转自复位铰链结构， 但应理解， 侧板 2 可通过位于侧板 2与底座 1之间的多个铰链结构彼此铰接。 还应理解， 上述旋 转自复位铰链结构还可与设置在侧板 2与底座 1之间的其他铰链结构共同实现 两者的铰接。 例如， 在图 2中， 侧板 2的下边缘还设有另一延伸部 22， 而底座 1的伸出部 13上设有相应的开放部 12。 如图 3中该铰链结构的侧视图所示， 延 伸部 22上设有铰链销 221， 开放部 12上设有由横截面呈 “T” 字形的纵向延伸 挡筋在两侧形成的两个长条形开放式的凹槽 121，铰链销 221可在凹槽 121内旋 转并上下滑动。 但应理解， 除了该铰链结构之外， 本发明的旋转自复位铰链结 构可与任何已知的铰链结构组合使用。 需要注意的是， 包括延伸部 22和开放部 12的铰链结构并不是必要结构， 但其能够为侧板 2在旋转过程中提供更稳定的 支持， 并且在侧板 2处于展开竖直状态时， 能够限制其左右移动。 而伸出部 21 和开放部 1 1采用的旋转自复位铰链结构只需要在侧板 2的多个伸出部的最两端 布置即可满足侧板 2的功能要求。
在上述旋转自复位铰链结构中， 较佳地是， 伸出部 13的厚度与侧板 2的厚 度大致相同， 其尺寸可以设置在 30mm 以下仍可以保证容器的连接强度， 可以 联想到， 一些特殊应用场景下， 将连接杆 5 的厚度设计成与侧板 2同样厚度可 以更进一步减小对侧板 2厚度的要求。 还较佳地， 延伸部 21的纵向长度等于或 略小于开放部 1 1的纵向深度。 还较佳地， 延伸部 21的厚度小于侧板 2的厚度， 且更佳地等于或略小于开放部 11沿水平方向的尺寸。 从而， 当侧板 2处于直立 状态时， 延伸部 21能够容纳在开放部 11 内， 并形成大致平坦的容器内壁。
参见图 4和图 5, 为了限制侧板 2在使用状态时相对于底座 1向上移动， 即 防止延伸部 21从上方脱出开放部 1 1， 延伸部 21在顶部两侧设置挖切部 215 （见 图 5） ， 而开放部 11在顶部两侧的对应至少一侧具有台肩部 113 （见图 4） ， 台肩 部 113可容纳于挖切部 215。 较佳地， 挖切部 215与台肩部 113的形状互补。 当侧 板 2直立时， 台肩部 113位于挖切部 215内。 在延伸部 21上与挖切部 215相邻形 成有挂台 213， 该挂台 213位于挖切部 215的下方， 如图 5所示。 图 5中挂台 213 的纵向长度仅为示意性的， 挂台 213的纵向长度可以根据需要设置。 较佳地， 为了 使得在侧板 2从折叠状态直立的过程中挂台 213与台肩部 113更顺利地接合， 从而 使得侧板 2更顺利就位， 挂台 213的与挖切部 215相邻的部位设有导向斜面 214， 而台肩部 113的下边缘也设有导向斜面 114。图 4和图 5中示出了延伸部 21和开放 部 11各设置一对挖切部 215和一对台肩部 113的实施例， 但应理解， 也可仅设置 一个挖切部 215和相应的一个台肩部 113， 也能实现防止延伸部 21从上方脱出开 放部 1 1以及在直立过程中便于侧板 2更顺利就位的效果。
此外， 继续参见图 4和 5， 为了便于与连接杆 5连接， 延伸部 21上设有贯 通该延伸部 21厚度的纵向槽 21 1， 而开放部 1 1则设有一对纵向挡筋 11 1。 该对 挡筋 111的相反表面之间的宽度小于或等于纵向槽 211的宽度， 从而， 当延伸部 21 位于开放部 11 内时， 该对纵向挡筋 111位于纵向槽 211 内。 该纵向挡筋 111的下 端与连接杆 5的下端铰接， 而纵向槽 211的顶端与连接杆 5的上端可滑动地转动连 接。 具体地， 例如在图 1-6所示的实施例中， 在纵向槽 211的顶端设有位于相对两 侧的长条形槽 212， 而连接杆 5的上端设有相对两侧伸出的铰链销 54 （见图 6） ， 铰链销 54可安装在长条形槽 212内并能够在长条形槽 212内滑动并转动。 在图 7 所示的另一实施例中， 在纵向槽 211 的顶端设有位于相对两侧的铰链销 217， 而连 接杆 5的上端设有位于相对两侧伸出的长条形槽 56,键 I销 217可安装在长条形槽 56内并能够在长条形槽 56内滑动并转动。 此外， 在一对纵向挡筋 111的下端设有 铰链孔 112， 而在连接杆 5的下端设有向两侧伸出的铰链销 52 （见图 6） ， 铰链销 52可安装在铰链孔 112内并能够在铰链孔 112内转动。 当然， 也可设想在一对纵向 挡筋 111的下端设有铰链销， 而在连接杆 5的下端设有位于两侧的铰链孔。 为了便 于安装， 铰链销 52、 54或 217上可设有导向斜面。 在所示实施例中， 在延伸部 21 内仅设置有一个纵向槽 211， 而在开放部 11内仅设置一对纵向挡筋 111， 两者通过 一个连接杆 5连接， 但应理解， 可在一个延伸部 21和开放部 11内设置一个以上相 应数量的纵向槽 211和成对纵向挡筋 111， 通过相应数量的连接杆 5连接。
在图 6中示出了连接杆 5的立体图。 在图 6中， 连接杆 5包括中部段 55以及 从中部段 55分别向下端延伸的一对弹性臂 51和从中部段 55向上端延伸的一对弹 性臂 53。铰链销 52设置在弹性臂 51的外侧上， 而铰链销 54设置在弹性臂 53的两 侧上。 连接杆 5通常由塑胶材料制成， 连接杆 5由于塑料材料本身的弹性而具有弹 性。 因此， 连接杆 5能够可拆卸地与延伸部 21和开放部 11连接。 但应理解， 连接 杆 5也可采用其他结构， 只要能够在下端与开放部 11形成铰接连接， 而在上端与 延伸部 21形成滑动转动连接即可。
图 8中示出了连接杆 5与延伸部 21和开放部 11装配后沿连接杆 5截取的 侧剖视图。 在图 8中， 侧板 2处于直立状态， 铰链销 52位于铰链孔 112内， 而 铰链销 54位于长条形槽 212内。 图中所示尺寸 D为底座 1的伸出部 13的厚度， 该尺寸大致等于侧板 2的厚度。
在上述实施例中， 延伸部 21的中部设有纵向槽 211， 在开放部 1 1的中部设 有成对挡筋 111， 二者通过连接杆 5彼此连接。 但应理解， 延伸部 21也可不设 置纵向槽 21 1， 而开放部 11也可不设置成对挡筋 11 1， 而是将长条形槽 212设 置在延伸部 21 的两侧， 将铰链孔 112设置在开放部的两侧， 在延伸部 21 的两 侧与开放部 1 1的两侧分别之间形成容纳 2个连接杆 5的间隙。 此时每个连接杆 5的上端和下端各仅设置一个铰接销。
图 9a-9c示出侧板 2作为相对的一组侧板中首先折叠的侧板的折叠过程。图
9a示出首先折叠的侧板处于直立位置的示意图，连接杆 5的铰链销 52的轴线和 侧板 2的伸出部 22上的铰链销 221重合， 当侧板 2开始折叠时， 该轴线为侧板 2绕其旋转的唯一旋转轴线， 侧板 2绕其旋转和底座 1平行 （见图 9b和 9c） ， 展开操作时亦同理。
图 10a- 10d展示了侧板 2作为相对的一组侧板中第二折叠的侧板的折叠过 程。 图 10a 示出第二折叠的侧板处于直立位置的示意图。 开始折叠时， 侧板 2 首先绕铰链销 52的轴线旋转， 当侧板 2接触到首先折叠的对侧侧板（见图 10b） 时， 该侧板 2将开始以接触点 p为支点进行旋转 （图 10c所示） 。 此时延伸部 21的下端向上并远离开放部 11的侧壁移动， 延伸部 22的铰链销 221同样向上 移动。 为了与延伸部 21的运动轨迹相匹配， 较佳地凹槽 121的宽度大于铰链销 221的直径， 从而允许铰链销 221在凹槽 121内能进行一定的水平运动。 同时， 在图 5-6所示实施例的情况下， 连接杆 5的铰链销 54也开始向长条形槽 212的 下端移动； 而在图 7所示实施例的情况下， 铰链销 217开始向长条形槽 56的下 端移动， 当侧板 2折叠到完全与对侧侧板 2平行时， 铰链销 54/217位于长条形 槽 212/56的最下端； 连接杆 5将限制侧板 2的延伸部 21向上和向左移动， 保证 了容器折叠后侧板 2的安全稳定。
图 1 la- 1 lb展示了侧板 2作为相对的一组侧板中第二折叠的侧板的展开过 程。 首先， 如图 11a所示， 侧板 2绕铰链销 54进行旋转， 同时连接杆 5绕铰链 销 52进行旋转，侧板 2的延伸部 21末端向下转动，但由于摩擦力，铰链销 54/217 并不一定因侧板 2的重力下沉而沿长条形槽 212/56上移至其上部。在该情况下， 当侧板 2旋转直立至侧板 2的挂台 213与底座 1 的台肩部 113彼此接触时， 两 者的导向斜面 114、 214将挂台 213和台肩部 113导入到正确的配合位置， 在导 入过程中， 侧板 2相应下移而铰链销 54/217沿长条形槽 212/56上移至其上部， 从而使得整个操作过程流畅顺利。
以上已详细描述了本发明的较佳实施例， 但应理解到， 若需要， 能修改实 施例的方面来采用各种专利、 申请和出版物的方面、 特征和构思来提供另外的 实施例。
考虑到上文的详细描述， 能对实施例做出这些和其它变化。 一般而言， 在 权利要求中， 所用的术语不应被认为限制在说明书和权利要求中公开的具体实 施例， 而是应被理解为包括所有可能的实施例连同这些权利要求所享有的全部 等同范围。

Claims

权 利 要 求
1. 一种可折叠容器，包括底座和两对侧板，所述两对侧板铰接至所述底座的边 缘并能够相对于所述底座折叠， 其特征在于， 所述可折叠容器还包括连接杆， 所述 两对侧板中的至少一对侧板的下边缘设有延伸部， 所述底座的相应边缘设有垂直于 所述底座延伸的伸出部， 所述伸出部设有开放部， 所述开放部朝向所述容器内部并 朝向所述伸出部的顶端开放， 所述连接杆的一端与所述开放部的底端枢转连接， 而 所述连接杆的另一端与所述延伸部的顶端沿垂直于所述底座方向可滑动地转动连 接。
2. 根据权利要求 1所述的可折叠容器， 其特征在于，所述延伸部上设有贯通所 述延伸部厚度并朝向所述延伸部的底端开放的纵向槽， 且所述纵向槽的顶端与所述 连接杆的另一端可滑动地转动连接。
3. 根据权利要求 1所述的可折叠容器， 其特征在于，所述可折叠容器设有相互 间隔开的多个所述延伸部，相互间隔开的多个所述开放部， 以及相应数量的连接杆。
4. 根据权利要求 3所述的可折叠容器， 其特征在于，所述两对侧板中的至少一 对侧板的下边缘还设有另一延伸部， 所述伸出部设有另一开放部， 所述另一开放部 朝向所述容器内部并朝向所述伸出部的顶端开放， 所述另一延伸部与所述开放部可 滑动地转动连接。
5. 根据权利要求 4所述的可折叠容器， 其特征在于，所述另一延伸部上设有贯 通所述延伸部厚度并朝向所述延伸部的底端开放的另一纵向槽， 所述纵向槽的底端 两侧各设有铰链销， 所述另一开放部设有由横截面呈“T”字形的纵向延伸挡筋在 两侧形成的两个长条形开放式凹槽， 所述铰链销分别容纳在所述两个长条形开 放式凹槽内。
6. 根据权利要求 1所述的可折叠容器， 其特征在于，所述延伸部上设有贯通所 述延伸部厚度并朝向所述延伸部的底端开放的纵向槽， 所述开放部设有相应的成对 纵向挡筋， 所述成对挡筋的相反表面之间的宽度小于或等于所述纵向槽的宽度， 所 述纵向挡筋的下端与连接杆的一端铰接， 且所述纵向槽的顶端与所述连接杆的另一 端可滑动地转动连接。
7. 根据权利要求 6所述的可折叠容器， 其特征在于，所述成对纵向挡筋的下端 设有铰链孔， 所述连接杆的一端设有向两侧伸出的铰链销。
8. 根据权利要求 6所述的可折叠容器， 其特征在于，所述纵向槽的顶端设有位 于两侧的长条形槽， 所述连接杆的另一端设有向两侧伸出的铰链销。
9. 根据权利要求 6所述的可折叠容器， 其特征在于，所述纵向槽的顶端设有位 于两侧的铰链销， 所述连接杆的另一端设有位于两侧的长条形槽。
10. 根据权利要求 6所述的可折叠容器， 其特征在于， 所述成对纵向挡筋的下 端设有铰链孔， 所述纵向槽的顶端设有位于两侧的长条形槽， 所述连接杆的两端各 设有向两侧伸出的铰链销。
11. 根据权利要求 6所述的可折叠容器， 其特征在于， 所述成对纵向挡筋的下 端设有铰链孔， 所述纵向槽的顶端设有位于两侧的铰链销， 所述连接杆的一端设有 向两侧伸出的铰链销， 所述连接杆的另一端设有位于两侧的长条形槽。
12. 根据权利要求 9所述的可折叠容器， 其特征在于， 所述连接杆包括朝向分 别向两端延伸的两对弹性臂， 所述铰链销分别设置在所述两对弹性臂的外侧上。
13. 根据权利要求 11所述的可折叠容器，其特征在于，所述连接杆包括朝向分 别向两端延伸的两对弹性臂， 所述连接杆的所述一端的铰链销设置在一对弹性臂的 外侧上， 所述连接杆的所述另一端的所述长条形槽设置在另一对弹性臂的外侧上。
14. 根据权利要求 1所述的可折叠容器， 其特征在于， 所述延伸部在顶部两侧 的至少一侧具有挖切部， 而所述开放部在顶部两侧的对应至少一侧具有台肩部， 所 述台肩部可容纳于所述挖切部。
15. 根据权利要求 14所述的可折叠容器，其特征在于，所述挖切部与所述台肩 部形状互补。
16. 根据权利要求 1所述的可折叠容器， 其特征在于， 所述延伸部沿垂直于所 述底座方向的长度等于所述开放部沿所述方向的深度。
17. 根据权利要求 1所述的可折叠容器， 其特征在于， 所述延伸部的厚度小于 所述侧板的厚度。
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CN109835570B (zh) 2024-02-27
US11820549B2 (en) 2023-11-21

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