CN112978082A - Two-way locking device for connecting two panels together and paper sleeve - Google Patents
Two-way locking device for connecting two panels together and paper sleeve Download PDFInfo
- Publication number
- CN112978082A CN112978082A CN201911277093.1A CN201911277093A CN112978082A CN 112978082 A CN112978082 A CN 112978082A CN 201911277093 A CN201911277093 A CN 201911277093A CN 112978082 A CN112978082 A CN 112978082A
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- tongue piece
- concave
- tongue
- panel
- convex
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 11
- 210000002105 tongue Anatomy 0.000 description 186
- 239000000123 paper Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
Images
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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
- B65D5/061—Rectangular containers having a body with gusset-flaps folded inwardly beneath the closure flaps
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Connection Of Plates (AREA)
Abstract
The invention relates to a two-way locking device and a paper sleeve for connecting two panels together, wherein the two-way locking device comprises two locks, a first concave tongue piece is folded out from the plane of a first panel and forms a hole on the first panel, and a second concave tongue piece is folded into the hole and forms an included angle with the first concave tongue piece to form a first lock; the male tongue B is folded with the second female tongue and forms a gap with the male tongue A, and the first male tongue is inserted into the gap to be clamped by the butt-joint tongue mechanism to form a second lock catch. Compared with the prior art, the bidirectional locking device realizes the stable connection between the two panels, and the structure is more compact through the ingenious concave-convex tongue piece combination design.
Description
Technical Field
The invention relates to the field of packaging, in particular to a bidirectional locking device and a paper sleeve for connecting two panels together.
Background
The lap joint of two panels typically employs a panel interlocking structure. A common interlocking device is formed by forming a locking tongue on one panel and a locking hole on the other panel, inserting a locking piece into the locking hole, and forming a panel interlocking structure by engaging an edge of the locking tongue with an edge of the locking hole. Such panel interlocking structures do not perform well in terms of stability.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned deficiencies of the prior art and providing a two-way latch and paper sleeve for connecting two panels together.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a bidirectional locking device for connecting two panels together, which is used for connecting a first panel and a second panel and comprises two locks formed by a first concave-convex tongue piece combination and a second concave-convex tongue piece combination;
the first concave tongue piece combination consists of a first concave tongue piece and a first convex tongue piece, the constraint end of the first concave tongue piece is connected to the first panel in a turning way, the free end is provided with a free end which is concave and faces to the edge of the first panel, the first convex tongue piece is integrated with the first panel and is positioned at the concave part of the free end of the first concave tongue piece,
the second concave tongue piece combination consists of a second concave tongue piece and a butt-joint tongue piece mechanism, the free end of the second concave tongue piece faces to the edge of the second panel, the constraint end is provided with a constraint end which is concave and is connected to the second panel in a turnover way, and the butt-joint tongue piece mechanism consists of a convex tongue piece A which is integrated with the second panel and is positioned at the concave part of the constraint end of the second concave tongue piece and a convex tongue piece B which is formed on the second concave tongue piece and is in butt joint with the convex tongue piece A;
the first concave tongue piece is folded out from the plane of the first panel and forms a hole on the first panel, and the second concave tongue piece is folded into the hole and forms an included angle with the first concave tongue piece to form a first lock catch; the male tongue B is folded with the second female tongue and forms a gap with the male tongue A, and the first male tongue is inserted into the gap to be clamped by the butt-joint tongue mechanism to form a second lock catch.
In one embodiment of the present invention, in the first lock catch, a free end of the first concave tongue abuts against a surface of the second concave tongue.
As an embodiment of the present invention:
the constraint end of the first concave tongue piece is connected to the first panel in a turnover way through a first folding line, and the first concave tongue piece and the first convex tongue piece are separated by a cutting line;
the constraint end of the second female tongue piece is connected to the second panel in a reversible way by a second fold line, and the second female tongue piece, the male tongue piece A and the male tongue piece B are separated by a cutting line.
As an embodiment of the present invention:
the middle of the free end of the first concave tongue piece is provided with a free end concave part, and the first convex tongue piece is positioned in the middle of the free end concave part;
the middle of the constraint end of the second concave tongue piece is provided with a constraint end indent, the butt joint type tongue piece mechanism is positioned at the constraint end indent, and the convex tongue piece A, the convex tongue piece B and the second concave tongue piece are separated by an H-shaped cutting line.
As an embodiment of the present invention:
a free end inner recess is arranged at one end of the free end of the first concave tongue piece, and the first convex tongue piece is positioned at the inner recess of the free end;
and a constraint end indent is arranged at one end of the constraint end of the second concave tongue piece, the constraint end indent and the free end indent of the first concave tongue piece are positioned at the same end, and the convex tongue piece A, the convex tongue piece B and the second concave tongue piece are separated by a T-shaped cutting line.
As an embodiment of the invention, the first concave tongue piece and the second concave tongue piece are both in a shape with a larger middle part and smaller free ends and constrained ends.
The invention also provides a paper sleeve which comprises two panels connected together by the bidirectional locking device.
In one embodiment of the present invention, the two panels are connected by a plurality of said two-way locking devices distributed on the same line.
When in use:
the second tongue-and-groove combination is superposed above the first tongue-and-groove combination (the second panel is superposed on the first panel), and the positions of the second tongue-and-groove combination are consistent. Through top atress, (can use thimble or other analogues) with the inside (down) rush into of second concave tongue piece of second tongue piece combination, the first concave tongue piece of first tongue piece combination receives the impact force at second concave tongue piece top and sinks certain angle, first concave tongue piece and second concave tongue piece form certain angle each other (form the contained angle between the two) to constitute first hasp. During the punching process of the thimble (or the like), the second concave tongue piece is firstly folded by a larger angle, preferably the angle is larger than 80 degrees, and after the thimble is retracted, the second concave tongue piece rebounds, so that the free end of the first concave tongue piece is abutted against the surface of the second concave tongue piece.
After the first concave tongue piece is stressed and folded, the first convex tongue piece integrated with the first panel does not deform; and after the second concave tongue piece is stressed to be turned over, the convex tongue piece A integrated with the second panel is not deformed, the convex tongue piece B formed on the second concave tongue piece is turned over along with the second concave tongue piece, so that a cutting line between the convex tongue piece A and the convex tongue piece B forms a certain opening width (namely a gap is formed), the first convex tongue piece penetrates through the gap between the convex tongue piece A and the convex tongue piece B, and the butt joint type tongue piece mechanism (when the convex tongue piece A, the convex tongue piece B and the second concave tongue piece are separated by the H-shaped cutting line, the butt joint type tongue piece mechanism is in an H-shaped lock shape) firmly clamps the first convex tongue piece to form a second lock catch.
Compared with the prior art, the invention creatively realizes the stable connection between the two panels through two lock catches (bidirectional lock catches). The invention forms a first lock catch and simultaneously facilitates the first convex tongue piece of the first panel and the butt-joint tongue piece mechanism of the second panel to form a second lock catch. If the first lock catch fails, the second lock catch can prevent the second concave tongue piece of the second panel from bouncing, and the connection function failure of the first panel and the second panel is avoided.
The bidirectional locking device can be used for connecting the bottom surface and the surface of a one-piece package, and the connection and the firmness of the bidirectional locking device can keep good bearing performance under certain gravity without disconnection.
In addition, the bidirectional locking device is designed by combining the ingenious concave-convex tongue pieces, so that the structure is more compact.
Drawings
FIG. 1 is a schematic plan view of the two-way latch of the present invention;
FIG. 2 is a schematic view of a first tongue and groove combination of the present invention, wherein the first tongue and groove combination is shown in an upwardly turned state;
FIG. 3 is a schematic view of a second tongue and groove combination of the present invention, wherein the second tongue and groove combination is shown in a folded-down position;
FIG. 4 is a schematic view of a second panel of the present invention superimposed over a first panel;
FIG. 5 is a top view of the two-way locking device of the present invention showing the first female tongue and the second female tongue both folded down;
FIG. 6 is a schematic view from the bottom of FIG. 5;
fig. 7 is a schematic view of the paper sleeve of the present invention, wherein both the first concave tongue and the second concave tongue are folded downward (i.e., toward the inside of the paper sleeve).
In the figure:
i is a first panel, II is a second panel, alpha is a first lock catch, beta is a second lock catch;
11 is a first female tab, 111 is a free end female, 12 is a first male tab, 13 is a first fold line, 14 is a hole, 21 is a second female tab, 22 is a butt tab mechanism, 221 is a male tab a, 222 is a male tab B, 223 is a gap, 23 is a second fold line, 24 is an H-shaped cut line, and 25 is a T-shaped cut line.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
A two-way locking device for connecting two panels together is used for connecting a first panel I and a second panel II and comprises two locks formed by a first concave-convex tongue piece combination and a second concave-convex tongue piece combination; as shown in fig. 1 and 2, the first male-female tongue piece combination is composed of a first female tongue piece 11 and a first male tongue piece 12, the constrained end of the first female tongue piece 11 is connected to the first panel I in a reversible manner, the free end is provided with a free end indent 111 and faces the edge of the first panel I, the first male tongue piece 12 is integrated with the first panel I and is positioned at the free end indent 111 of the free end of the first female tongue piece 11; as shown in fig. 1 and 3, the second male-female tongue combination is composed of a second female tongue 21 and a butt-joint tongue mechanism 22, the free end of the second female tongue 21 faces the edge of the second panel II, the constraint end is provided with a constraint end recess and is connected to the second panel II in a reversible manner, the butt-joint tongue mechanism 22 is composed of a male tongue a221 which is integrated with the second panel II and is positioned in the constraint end recess of the second female tongue 21, and a male tongue B222 which is formed on the second female tongue 21 and is butted with the male tongue a 221;
referring to fig. 5 and 6, the first concave tongue 11 is folded out of the plane of the first panel I and forms a hole 14 on the first panel I, and the second concave tongue 21 is folded into the hole 14 and forms an angle with the first concave tongue 11 to form a first lock catch α (in this embodiment, it is preferable that in the first lock catch α, the free end of the first concave tongue 11 abuts against the surface of the second concave tongue 21); the male tongue B222 is folded back with the second female tongue 21 and forms a gap 223 with the male tongue a221, and the first male tongue 11 is inserted through the gap 223 to be clamped by the butt tongue mechanism 22, forming a second lock catch β.
More specifically, referring to fig. 1, in the preferred embodiment, the first concave tongue 11 and the second concave tongue 21 are similar in shape, the free end of the first concave tongue 11 is similar to the constrained end of the second concave tongue 21, the constrained end of the first concave tongue 11 is similar to the free end of the second concave tongue 21, and the first concave tongue 11 and the second concave tongue 21 are aligned when the second concave tongue combination and the first concave tongue combination are stacked. Since the second concave tongue 21 is folded to pass through the hole formed by the first concave tongue 11, the projection of the first concave tongue 11 should be slightly larger than the second concave tongue 21.
Preferably, in this embodiment, the constraint end of the first female tab 11 is connected to the first panel I in a reversible manner by a first fold line 13, the first female tab 11 and the first male tab 12 being separated by a cut line; the restraining end of the second female tab 21 is foldably connected to the second panel II by a second fold line 23, and the second female tab 21, the male tab a221 and the male tab B222 are separated by a cut line.
In the present embodiment, referring to fig. 1 to 7, the first tongue-and-groove combination and the second tongue-and-groove combination may be of a "full type" (see the upper group in fig. 1) or a "half type" (see the lower group in fig. 1), and the "half type" may be a portion of the "full type" (for example, a half portion along a line perpendicular to the edge of the panel).
When the first concave-convex tongue piece combination and the second concave-convex tongue piece combination are in a complete type (see an upper group in fig. 1 and corresponding parts in fig. 2-7), a free end concave 111 is arranged in the middle of the free end of the first concave tongue piece 11, and the first convex tongue piece 12 is positioned in the middle free end concave 111; the middle of the constraint end of the second female tongue 21 is provided with a constraint end indent, the butt-joint tongue mechanism 22 is located in the constraint end indent, and the male tongue a221, the male tongue B222 and the second female tongue 21 are separated by the H-shaped cutting line 24, so that the butt-joint tongue mechanism 22 is in an H-shaped lock catch shape.
When the first concave-convex tongue piece combination and the second concave-convex tongue piece combination are in a half shape (see the lower group in fig. 1 and the corresponding parts in fig. 2-6), a free end indent 111 is arranged at one end of the free end of the first concave tongue piece 11, and the first convex tongue piece 12 is positioned at the free end indent 111; the second female tongue 21 is provided at one end with a constraining end dimple at the same end as the free end dimple 111 of the first female tongue 11, the male tongue a221, the male tongue B222 and the second female tongue 21 being separated by a T-shaped cut line 25.
In this embodiment, it is preferable that each of the first and second female tongues 11 and 21 has a shape with a large middle portion and small free and constrained ends.
When in use:
the second tongue-and-groove combination is superimposed over the first tongue-and-groove combination (the second panel II is overlapped on the first panel I), as shown in fig. 4, and in the same position. The second concave tongue piece 21 of the second concave tongue piece combination is punched inwards (downwards) by the top stress (a thimble or the like can be used), the first concave tongue piece 11 of the first concave tongue piece combination sinks for a certain angle by the impact force of the top of the second concave tongue piece 21, and the first concave tongue piece 11 and the second concave tongue piece 21 form a certain angle with each other (an included angle is formed between the first concave tongue piece 11 and the second concave tongue piece 21), so that the first lock catch alpha is formed. During the punching process of the thimble (or the like), the second concave tongue piece 21 is firstly turned over by a large angle, preferably by an angle larger than 80 degrees, and after the thimble is retracted, the second concave tongue piece 21 rebounds, so that the free end of the first concave tongue piece 11 abuts against the surface of the second concave tongue piece 21.
After the first concave tongue piece 11 is stressed and folded, the first convex tongue piece 12 integrated with the first panel I does not deform; and after the second concave tongue 21 is folded under stress, the convex tongue a221 integrated with the second panel II is not deformed, the convex tongue B222 formed on the second concave tongue 21 is folded with the second concave tongue 21, so that the cutting line between the convex tongue a221 and the convex tongue B222 forms a certain opening width (i.e. a gap 223 is formed), the first convex tongue 12 passes through the gap between the convex tongue a221 and the convex tongue B222, and the butt-type tongue mechanism 22 (when the convex tongue a221, the convex tongue B222 and the second concave tongue 21 are separated by the H-shaped cutting line 24, the H-shaped latch shape is formed) firmly clamps the first convex tongue 12 to form the second latch β.
Based on the above-mentioned two-way locking device, the present embodiment further provides a paper sleeve, as shown in fig. 7, which includes two panels (a first panel I and a second panel II) connected together by the above-mentioned two-way locking device. In this embodiment, the first panel I and the second panel II may be two separate panels, or may be a portion where two connecting ends of a folded paperboard folded in a cylindrical shape are folded (see fig. 7). In this embodiment, it is preferable that the two panels are connected by a plurality of said two-way lockers distributed on the same line. The bidirectional locking device adopts a form of a complete type or a semi-complete type. The bidirectional locking device is particularly suitable for the connection of the bottom surface and the surface of a one-piece package, and the connection and the firmness of the bidirectional locking device can keep good bearing performance without disconnection under the condition of bearing certain gravity.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (8)
1. A two-way locking device for connecting two panels together is used for connecting a first panel (I) and a second panel (II), and is characterized by comprising two locks formed by a first concave-convex tongue piece combination and a second concave-convex tongue piece combination;
the first concave-convex tongue piece combination consists of a first concave tongue piece (11) and a first convex tongue piece (12), the constraint end of the first concave tongue piece (11) is connected to the first panel (I) in a turning way, the free end is provided with a free end indent (111) and faces to the edge of the first panel (I), the first convex tongue piece (12) is integrated with the first panel (I) and is positioned at the free end indent (111) of the free end of the first concave tongue piece (11),
the second concave-convex tongue piece combination consists of a second concave tongue piece (21) and a butt-joint tongue piece mechanism (22), the free end of the second concave tongue piece (21) faces to the edge of the second panel (II), the constraint end is provided with a constraint end concave part and is connected to the second panel (II) in a turnover way, and the butt-joint tongue piece mechanism (22) consists of a convex tongue piece A (221) which is integrated with the second panel (II) and is positioned at the constraint end concave part of the second concave tongue piece (21) and a convex tongue piece B (222) which is formed on the second concave tongue piece (21) and is in butt joint with the convex tongue piece A (221);
the first concave tongue piece (11) is folded out from the plane of the first panel (I) and forms a hole (14) on the first panel (I), and the second concave tongue piece (21) is folded into the hole (14) and forms an included angle with the first concave tongue piece (11) to form a first lock catch (alpha); the male tongue B (222) is folded along with the second female tongue (21) and forms a gap (223) with the male tongue A (221), and the first male tongue (11) is inserted into the gap (223) so as to be clamped by the butt type tongue mechanism (22) to form a second lock catch (beta).
2. A two-way snap-fastener device for joining two panels together according to claim 1, characterised in that in the first snap-fastener (α) the free end of the first female tongue (11) abuts against the face of the second female tongue (21).
3. A bi-directional snapping device that connects two panels together according to claim 1,
the constraint end of the first concave tongue piece (11) is connected to the first panel (I) in a turnover way through a first folding line (13), and the first concave tongue piece (11) and the first convex tongue piece (12) are separated by a cutting line;
the restraining end of the second female tab (21) is connected to the second panel (II) by a second fold line (23) in a reversible manner, the second female tab (21), the male tab A (221) and the male tab B (222) being separated by a cut line.
4. A bi-directional snapping device that connects two panels together according to claim 1 or 3,
a free end inner recess (111) is arranged in the middle of the free end of the first concave tongue piece (11), and the first convex tongue piece (12) is positioned in the middle of the free end inner recess (111);
the middle of the restraint end of the second concave tongue piece (21) is provided with a restraint end concave part, the butt-joint tongue piece mechanism (22) is positioned in the restraint end concave part, and the convex tongue piece A (221), the convex tongue piece B (222) and the second concave tongue piece (21) are separated by an H-shaped cutting line (24).
5. A bi-directional snapping device that connects two panels together according to claim 1 or 3,
a free end indent (111) is arranged at one end of the free end of the first concave tongue piece (11), and the first convex tongue piece (12) is positioned at the free end indent (111);
a constraint end indent is arranged at one end of the constraint end of the second concave tongue piece (21), the constraint end indent and the free end indent (111) of the first concave tongue piece (11) are positioned at the same end, and the convex tongue piece A (221), the convex tongue piece B (222) and the second concave tongue piece (21) are separated by a T-shaped cutting line (25).
6. A bi-directional locking device for two panels together as claimed in claim 1 wherein the first female tongue (11) and the second female tongue (21) are each shaped with a larger middle part and smaller free and constrained ends.
7. A paper sleeve comprising two panels connected together by a bi-directional locker assembly as claimed in any one of claims 1 to 6.
8. A paper sleeve according to claim 7, characterized in that two panels are connected by a plurality of said two-way lockers distributed on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277093.1A CN112978082B (en) | 2019-12-12 | 2019-12-12 | Two-way locking device for connecting two panels together and paper sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277093.1A CN112978082B (en) | 2019-12-12 | 2019-12-12 | Two-way locking device for connecting two panels together and paper sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112978082A true CN112978082A (en) | 2021-06-18 |
| CN112978082B CN112978082B (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911277093.1A Active CN112978082B (en) | 2019-12-12 | 2019-12-12 | Two-way locking device for connecting two panels together and paper sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112978082B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686491A (en) * | 2009-08-18 | 2012-09-19 | 米德韦斯特瓦科包装系统有限责任公司 | Carton and blank therefor |
| TW201542426A (en) * | 2014-05-05 | 2015-11-16 | Meadwestvaco Packaging Systems | Panel interlocking device for a carton and blank therefor |
| CN212048692U (en) * | 2019-12-12 | 2020-12-01 | 上海紫丹印务有限公司 | Two-way locking device for connecting two panels together and paper sleeve |
-
2019
- 2019-12-12 CN CN201911277093.1A patent/CN112978082B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686491A (en) * | 2009-08-18 | 2012-09-19 | 米德韦斯特瓦科包装系统有限责任公司 | Carton and blank therefor |
| TW201542426A (en) * | 2014-05-05 | 2015-11-16 | Meadwestvaco Packaging Systems | Panel interlocking device for a carton and blank therefor |
| CN212048692U (en) * | 2019-12-12 | 2020-12-01 | 上海紫丹印务有限公司 | Two-way locking device for connecting two panels together and paper sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112978082B (en) | 2024-06-11 |
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