WO2022116993A1 - 拉杆箱 - Google Patents

拉杆箱 Download PDF

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Publication number
WO2022116993A1
WO2022116993A1 PCT/CN2021/134768 CN2021134768W WO2022116993A1 WO 2022116993 A1 WO2022116993 A1 WO 2022116993A1 CN 2021134768 W CN2021134768 W CN 2021134768W WO 2022116993 A1 WO2022116993 A1 WO 2022116993A1
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WO
WIPO (PCT)
Prior art keywords
upper cover
lower cover
rib
peripheral edge
box
Prior art date
Application number
PCT/CN2021/134768
Other languages
English (en)
French (fr)
Inventor
郭昌军
Original Assignee
滁州市预见旅游用品有限公司
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
Priority claimed from CN202011381257.8A external-priority patent/CN112293896A/zh
Priority claimed from CN202110525452.1A external-priority patent/CN115336849A/zh
Application filed by 滁州市预见旅游用品有限公司 filed Critical 滁州市预见旅游用品有限公司
Priority to EP21893123.6A priority Critical patent/EP4062792A4/en
Publication of WO2022116993A1 publication Critical patent/WO2022116993A1/zh

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/36—Reinforcements for edges, corners, or other parts
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/04—Frames
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/03—Suitcases
    • A45C2005/037—Suitcases with a hard shell, i.e. rigid shell as volume creating element
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/14—Rigid or semi-rigid luggage with built-in rolling means

Definitions

  • the invention relates to the field of luggage, in particular to a trolley case.
  • the trolley case in the prior art is easily deformed under the action of external force, especially the box cover is easily concave and deformed under the pressure of external force.
  • the thickness of the box will be increased during design to enhance its structural strength, but this not only increases the material cost, but also increases the weight of the trolley case, causing certain inconvenience to users when dragging or lifting.
  • Lightweight is one of the future development directions of the trolley case, and it is necessary to further improve the box structure.
  • the invention provides a trolley box, the ribs of which have a hollow structure, the hollow structure of the ribs is more optimized, the overall quality of the box body is reduced, and the lightweight effect is good. Its specific technical solutions are as follows:
  • a trolley case includes an upper cover and a lower cover that can be opened and closed with the upper cover, ribs are respectively provided on the inner side of the upper cover and the inner side of the lower cover, and the ribs are located on the upper cover and the lower cover.
  • the ribs located on the inner side of the upper cover and the inner side of the lower cover form a support area for preventing The upper cover and the lower cover are deformed and support the box together, there is a certain clearance space between the rib and the inner peripheral edge of the upper cover or the inner peripheral edge of the lower cover, and the rib includes a rib plate and a connecting block connecting two adjacent rib plates, and the rib plates and the connecting blocks are alternately arranged, wherein the rib plate and the inner side of the upper cover or the lower cover form a hollow gap, and the ribs
  • a first reinforcing rib block is arranged between the plate and the inner peripheral edge of the upper cover or the
  • the rib has a V-shaped structure, and the two sides of the V-shaped structure of each adjacent two rib are connected together by the connecting block, and the V-shaped structure of the rib and the The hollow notch is formed on the inner side of the upper cover or the lower cover.
  • the concave side of the V-shaped structure of the rib plate faces the inner side of the upper cover or the lower cover, the convex side of the V-shaped structure of the rib plate is located in the clearance space, the The connecting block is connected with the convex side of the V-shaped structure of each adjacent two rib plates.
  • the rib plate, the connecting block, the first reinforcing rib block and the upper cover or the lower cover are integrally formed.
  • the first reinforcing rib block is arranged at the most protruding position on the convex side of the V-shaped structure of the rib plate, between the connecting block and the inner peripheral edge of the upper cover or the inner peripheral edge of the lower cover A second reinforcing rib block is arranged between.
  • the height of the rib plate is greater than the height of the first reinforcing rib block and the second reinforcing rib block, and the height of the rib plate is smaller than the inner peripheral edge of the upper cover or the inner peripheral edge of the lower cover.
  • the height of the rib plate is equal to the height of the connecting block, and the topmost end of the rib plate is flush with the topmost end of the connecting block.
  • step structure extending horizontally outward on the outer periphery of the upper cover or the outer periphery of the lower cover, and the step structure is matched with the outer periphery of the upper cover or the outer periphery of the lower cover Thickness for absorbing rubber strips and zipper cloth.
  • a reinforcing boss is provided on the bottom surface of the stepped structure, and the reinforcing boss is integrally formed with the outer peripheral edge of the upper cover or the outer peripheral edge of the lower cover.
  • the distance between the top end of the rib and the top end of the outer periphery of the upper cover or the top end of the outer periphery of the lower cover is 8mm to 20mm;
  • the distance between the top end of the outer periphery of the upper cover or the top end of the outer periphery of the lower cover is 5mm to 15mm;
  • the extension length of the step structure is 0.5mm to 5mm;
  • the thickness of the side wall of the part is smaller than the thickness of the side wall of the lower part of the upper cover or the lower cover.
  • the distance between the two ends of the V-shaped structure of the rib plate is in the range of 15mm to 50mm, and the distance between each adjacent two first reinforcing rib blocks is in the range of 50mm to 120mm.
  • the present invention also provides a box reinforcement structure, comprising a box body, and an inner muscle and an outer muscle and bones are formed by extending outward at the circumference of the box body for when the box body is closed
  • a box reinforcement structure comprising a box body, and an inner muscle and an outer muscle and bones are formed by extending outward at the circumference of the box body for when the box body is closed
  • the structural strength of the structural reinforcement is higher than that of the inner muscle and the structural strength of the outer muscles and bones, the inner muscles and the outer muscles clamp the structural reinforcements, so that the structural reinforcements are in close contact with the inner muscles and the outer muscles, respectively, for strengthening the entire structure. Structural strength of the box.
  • the inner muscles and bones extend outward from one end of the peripheral edge of the box along the extending direction of the peripheral edge of the box body, and the extension height of the inner muscles and bones is 1.5-15 mm;
  • the periphery of the box body is not on the same plane, the height of the outer muscles and bones is higher than the height of the inner muscles and bones, and the width of the gap between the outer muscles and the inner muscles and bones is 0.8-8mm; the outer muscles and bones are in the range of 0.8-8mm; It is integrally connected with the inner tendons and the peripheral edge of the box body through a connecting part.
  • the structural reinforcement is arranged in a full circle, half circle or segmented arrangement along the gap between the inner tendon and the outer tendon.
  • the shape of the structural reinforcement is any one of a circle, an ellipse, a rectangle, a trapezoid, an S shape, a V shape, an M shape, a sheet shape, and a ring shape.
  • the shape of the structural reinforcement is circular or annular, and the maximum diameter of the structural reinforcement is in the range of 0.8-8 mm; or, the shape of the structural reinforcement is square or sheet, and the The maximum width of structural reinforcement is 0.2-8mm;
  • the structural reinforcement is made of any one of metals such as steel wire, steel sheet, aluminum sheet, nickel sheet, copper sheet (or pipe or wire), glass fiber or carbon fiber.
  • the present invention also provides a trolley case, comprising an upper cover and a lower cover that can be opened and closed with the upper cover, the upper cover and the lower cover constitute a box body, and the upper cover and the lower cover A box reinforcement structure of the above-mentioned structure is provided inside the box body peripheral position.
  • the ribs located on the inner side of the upper cover and the inner side of the lower cover form a support area to prevent the upper cover and the lower cover from being deformed and support together
  • the box body, the rib has a rib plate and a connecting block connecting two adjacent rib plates, and the rib plate and the connecting block are alternately arranged, wherein the rib plate and the inner side of the upper cover or the lower cover form a hollow gap, and the rib plate and the upper cover are formed.
  • a first reinforcing rib block is arranged between the inner peripheral edge or the inner peripheral edge of the lower cover.
  • the ribs By forming a hollow gap between the rib plate and the inner side of the upper cover or the lower cover, arranging connecting blocks and reinforcing rib blocks between two adjacent rib plates, the ribs have a hollow structure and have a certain strength to meet the strength requirements of the box. While reducing the overall mass of the box body, it can also prevent the box body from being deformed, and correspondingly reduce the manufacturing materials of the box body to achieve light weight, and also reduce the box body manufacturing cost.
  • Fig. 1 is the three-dimensional structure schematic diagram of a kind of trolley case provided by the present invention
  • Fig. 3 is the cross-sectional structure schematic diagram of the rib of the first embodiment
  • Fig. 5 is the sectional structure schematic diagram of the rib of the second embodiment
  • FIG. 6 is a cross-sectional view of a rib of the trolley case in the first embodiment
  • FIG. 7 is a cross-sectional view of a rib of the trolley case in the second embodiment.
  • FIG. 8 is a schematic cross-sectional view of the box reinforcement structure in the third embodiment provided by the present invention.
  • Fig. 9 is a partial enlarged view of Fig. 8.
  • FIG. 10 is a three-dimensional structural schematic diagram of the structural reinforcement in the third embodiment.
  • FIG. 11 is a schematic cross-sectional structural diagram of the box reinforcement structure of the third embodiment.
  • FIG. 12 is a schematic cross-sectional structural diagram of the box reinforcement structure of the fourth embodiment.
  • Figure 13 is a schematic diagram of four arrangements of structural reinforcements.
  • A1 the distance from the top end of the peripheral edge of the box body to the top end of the rib in the first embodiment
  • A2 the distance from the top end of the box body periphery to the top end of the rib in the second embodiment
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.
  • a trolley case A is provided, the trolley case includes an upper cover 10 and a lower cover 20 that can be opened and closed with the upper cover 10 , the inner side of the upper cover 10 and the inner side of the lower cover 20 Ribs 30 are respectively provided, the ribs 30 are located at the inner peripheral edge near the opening and closing of the upper cover 10 and the lower cover 20, and are located on the inner side of the upper cover 10 and the inner side of the lower cover 20 when the upper cover 10 and the lower cover 20 are closed.
  • the rib 30 forms a support area for preventing the upper cover 10 and the lower cover 20 from being deformed and supporting the box together.
  • the rib 30 includes a rib plate 301 and connects two adjacent rib plates.
  • the connecting block 302 of 301, and the rib plate 301 and the connecting block 302 are alternately arranged, wherein the rib plate 301 and the inner side of the upper cover 10 or the lower cover 20 form a hollow gap Q, and the rib plate 301 and the inner peripheral edge of the upper cover 10 or the lower cover 20
  • a first reinforcing rib block 303 is arranged between the inner peripheral edges of the .
  • the upper cover 10 and the lower cover 20 both include a first inner side wall 401 , a second inner side wall 402 and The connecting portion 403 connecting the first inner side wall 401 and the second inner side wall 402 , the rib 30 is disposed on the inner side wall 4031 of the connecting portion 403 . Since the rib 30 is provided on both the upper cover 10 and the lower cover 20, and the inner side of the box body at the opening and closing of the upper cover 10 and the lower cover 20 has the same structure, the following will take the upper cover 10 as an example to measure the rib. The structure of 30 is further elaborated to save space.
  • the rib 30 includes a rib 301 and a connecting block 302 connecting two adjacent ribs 301, and the rib 301 and the connecting block 302 are alternately arranged, wherein the rib 301 and the connecting portion 403 inside the upper cover 10
  • the inner sidewall 4031 of the pierced hole Q is formed.
  • a certain clearance space S exists between the rib 30 and the first inner side wall 401 of the upper cover 10 , wherein the rib 301 has a V-shaped structure.
  • the concave sides of the V-shaped structure of the rib plate 10 face the inner side of the upper cover 10
  • the convex sides of the V-shaped structure of the rib plate 301 are located in the clearance space S
  • the V-shaped structure of the adjacent two ribs 301 is convex.
  • the two sides of the side are connected together by connecting blocks 302 .
  • the connecting blocks 302 are located between two adjacent ribs 301 .
  • the two concave sides of the V-shaped structure of the rib 301 and the inner side wall 4031 of the connecting portion 403 form a hollow gap Q.
  • the hollow notch Q formed by the V-shaped structure of the rib plate 301 and the inner side wall 4031 of the connecting portion 403 reduces the material usage of the box body and the cost on the one hand, and also reduces the quality of the box body on the other hand, and achieves light weight purpose of quantification.
  • a first reinforcing rib 303 is provided between the ribs 301 and the first inner side wall 401 of the upper cover 10.
  • the first reinforcing rib block 301 is arranged at the most protruding position of the convex side of the V-shaped structure of the rib plate 10 .
  • the first reinforcing rib block 301 can also be arranged at other positions, and the number of the first reinforcing rib block 301 in a single rib unit is not necessarily a single one, and can also be provided in multiples, as long as the strength can be satisfied on request.
  • the connecting block 302 is a solid structure, the connecting block 302 is respectively connected with the two sides of the convex side of the V-shaped structure of the adjacent two rib plates 301 as a whole, and the connection range is at least from the two rib plates 301.
  • the top end of the V-shaped structure is positioned at the midpoint to form a solid rib structure, which is trapezoidal when viewed from above.
  • the rib structure in the prior art is prone to shrink the appearance surface
  • the height of the first inner side wall 401 of the rib plate 301 is equal to the height of the connecting block 302 , and the top end of the rib plate 301 is flush with the top end of the connecting block 302 .
  • the rib structure provided in this embodiment can greatly improve the shrinkage risk of the appearance surface.
  • the height of each V-shaped hollow structure is relative to the box body.
  • the height of the side wall has been significantly improved, and the height difference between the two has been significantly reduced, helping to reduce the risk of shrinkage of the appearance surface.
  • the rib plate 301 , the connecting block 302 , the first reinforcing rib block 303 and the upper cover 10 are integrally formed.
  • the one-piece processing method is adopted, with few steps, and due to the design of the V-shaped hollow notch, while meeting the strength requirements, the design and processing costs of the mold are simplified compared with the original design, and the service life of the mold can be greatly increased. Conducive to actual mass production.
  • the rib structure provided in this embodiment adopts a large V-shaped hollow structure, and the size of a single rib structure is more than twice that of the original design.
  • the distance between the two ends is in the range of 15mm to 50mm, and the distance between each adjacent two first reinforcing rib blocks 303 is in the range of 50mm to 120mm.
  • the distance between two ends of the V-shaped structure of the rib plate 301 is set to 28mm, and the distance between two adjacent first reinforcing rib blocks 303 is set to 55mm.
  • the weight of the single box cover is 785 grams, while the box cover of the same size uses the V-shaped hollow structure design in this embodiment.
  • Analysis of the weight of a single box cover is 759 grams, that is, each box cover (ie the upper cover or the lower cover) using the V-shaped hollow structure in this embodiment can save 26g compared to the prior art, and the entire box body (the upper cover and the lower cover) can save 26 grams.
  • Cover can save 52g, significantly reduce the mass of the box, achieve lightweight, and save material costs. Especially in mass production, the effect will be more significant. For example, when 2 million boxes are planned to be produced each year, the box structure of this embodiment can save about 104,000KG of materials, which greatly saves material costs.
  • the distance between the rib 301 and the outermost edge of the outer peripheral edge of the upper cover 10 or the outermost outermost edge of the outer peripheral edge of the lower cover 20 is 8 mm to 20 mm.
  • the distance H1 from the top end of the peripheral edge of the box to the bottom end of the rib is 21.22 mm
  • the height A1 from the top end of the peripheral edge of the box body of the upper cover 10 to the top end of the rib 301 is A1
  • the distance between them is 11mm
  • the wall thickness B1 at the top of the box circumference is 1.8mm
  • the wall thickness C1 of the lower part of the box circumference is 2.32mm. While meeting the needs of the product, the thickness of the sewing side wall of the box is adjusted, so that the new design of this embodiment greatly improves the fluidity of the injection molding material and improves the production efficiency.
  • a second reinforcing rib is disposed between the connecting block 302 and the first inner side wall 401 of the upper cover 10 (or the lower cover 20 ).
  • Block 304 By arranging the first reinforcing rib block 301 and the second reinforcing rib block 304, the connection strength of the rib 30 and the upper cover 10 or the lower cover 20 is further strengthened, thereby improving the supporting strength of the box body.
  • a step structure 407 extending horizontally outward.
  • the structure 407 cooperates with the first outer side wall 405 of the upper cover 10 (or lower cover 20) to absorb the thickness of the rubber strip and the zipper cloth.
  • a step structure 407 is added to the side wall of the box body, and the thickness difference of the steps is used to absorb the thickness of the rubber strip and the zipper cloth, so that the whole box is more overall and more beautiful, and the strength of the box body is higher. Strong and production injection molding fluidity is better, more favorable for mass production.
  • a reinforcing boss 408 is provided on the bottom surface of the stepped structure 407, and the reinforcing boss 408 is integrally formed with the second outer side wall 406 of the upper cover 10 (or the lower cover 20) to enhance the strength of the stepped structure 407, which better satisfies The integrity of the appearance and the strength performance of this part of the upper cover 10 and the lower cover 20 are enhanced, and the strength of the box body is enhanced.
  • the height of the rib plate 301 is greater than the height of the first reinforcing rib block 303 and the second reinforcing rib block 304, and the height of the rib plate 301 The height is smaller than the height of the inner periphery of the upper cover 10 or the inner periphery of the lower cover 20 , the height of the rib 301 is equal to the height of the connecting block 302 , and the top of the rib 301 is flush with the top of the connecting block 302 .
  • the rib structure provided in this embodiment can greatly improve the shrinkage risk of the appearance surface.
  • the height of each V-shaped hollow structure is relative to the box body. The height of the side wall has been significantly improved, and the height difference between the two has been significantly reduced, helping to reduce the risk of shrinkage of the appearance surface.
  • the rib structure provided in this embodiment adopts a large V-shaped hollow structure, and the size of a single rib structure is more than twice that of the original design.
  • the distance between the two ends is in the range of 15mm to 50mm, and the distance between each adjacent two first reinforcing rib blocks 303 is in the range of 50mm to 120mm.
  • the distance between the two ends of the V-shaped structure of the rib plate 301 is set to 38mm, and the distance between two adjacent first reinforcing rib blocks 303 is set to 52mm.
  • the size of the V-shaped hollow structure in this embodiment is larger than that of the prior art, the number of rib units that need to be arranged in the box as a whole is relatively reduced, and combined with the V-shaped ends of each V-shaped hollow notch There is no material connection between them, so the lightweight effect of the overall quality of the box is significantly improved, and within the same unit length, the number of rib units that need to be arranged in the box is significantly reduced compared to the original structure, and there is more hollow space.
  • the new design greatly improves the fluidity of the injection molding material, and adjusts the thickness of the sewing sidewall of the box.
  • the rib 301 and the outer periphery of the upper cover 10 The outermost distance or the outermost distance of the outer peripheral edge of the lower cover 20 is 8 mm to 20 mm; the distance between the upper surface of the step structure 407 and the outermost outer peripheral edge of the upper cover 10 or the outer outer peripheral edge of the lower cover 20 is 5 mm to 20 mm. 15mm; the extended length of the step structure 407 is 0.5mm to 5mm.
  • the distance A2 between the top end of the rib 301 and the outermost side of the first inner side wall 401 of the upper cover 10 or the lower cover 20 is 11mm;
  • the distance E between the upper surface of the step structure 407 and the outermost edge of the outer periphery of the upper cover 10 is 10mm;
  • the extended length D of the step structure 407 is 1.96mm, and the box body circumference 40
  • the thickness B2 of the outermost side (that is, the topmost) is 1.34mm
  • the wall thickness C2 of the side wall of the lower part of the periphery of the box is 3.46mm
  • the thickness of the periphery 40 of the case is from the lower part to the outermost (that is, the outermost of the periphery of the case).
  • the top) is gradually thinned, and the design greatly improves the fluidity of the injection molding material and improve
  • the present invention adds a step structure to the side wall of the box body, and uses the steps to absorb the thickness of the rubber strip and the zipper cloth, so that the whole box is more aesthetically pleasing, and the box body is stronger and more productive.
  • Injection molding has better fluidity and is more beneficial to mass production.
  • a reinforcing boss is added, and the height of the boss is used to better absorb the thickness of the rubber strip and the zipper cloth, so as to better satisfy the integrity of the appearance and enhance the overall strength performance.
  • the present invention provides a box reinforcement structure, which includes a box body, and an inner muscle 502 and an outer muscle 501 are formed by extending outward at the box body periphery 40 of the box body. Support the box when the body is closed. There is a predetermined gap between the inner muscle 502 and the outer muscle 501, and a structural reinforcement 503 is arranged between the gaps.
  • the structural strength of the structural reinforcement 503 is higher than the structural strength of the inner muscles 502 and the outer muscles 501.
  • the inner muscles 502 and the outer muscles 501 clamp the structural reinforcement 503, so that the structural reinforcement 503 is connected to the inner muscles 502 and the outer muscles 501 respectively.
  • the tight abutment is used to strengthen the structural strength of the entire box.
  • the inner tendons 502 extend outward from one end of the peripheral edge 40 of the box along the extending direction of the peripheral edge 40 of the box, and the extension height F1 of the internal tendons 502 is in the range of 1.5-15 mm. In this embodiment, the extension height F1 of the inner tendons 502 is 8.48 mm.
  • the outer muscles and bones 501 are not on the same plane as the periphery 40 of the box body, the height of the outer muscles and bones 501 is higher than the height of the inner muscles and bones 502 , there is a predetermined gap S1 between the inner muscles and bones 502 and the outer muscles and bones 501 , and the outer muscles and bones 501 and the inner muscles and bones 502
  • the width of the gap S1 between them ranges from 0.8 to 8 mm, preferably, in this embodiment, the width is 3.57 mm.
  • the outer muscle 501 is connected to the inner muscle 502 and the peripheral edge 40 of the box body through a connecting portion 403 as a whole.
  • a whole circle of structural reinforcements 503 is disposed between the gaps S1 .
  • the shape of the structural reinforcements 503 is circular or annular, and the maximum diameter of the structural reinforcements 503 is in the range of 0.8-8 mm.
  • the structural reinforcement member 503 is circular, and its diameter and width are about 3.57 mm, which is compatible with the gap S1 between the outer muscles 501 and the inner muscles 502 .
  • the tendon 501 clamps the structural reinforcement 503, and the structural strength of the structural reinforcement 503 is higher than the structural strength of the inner tendon 502 and the outer tendon 501, so that the structural reinforcement 503 is in close contact with the inner tendon 502 and the outer tendon 501 respectively as two tendons.
  • the material used in the structural reinforcement 503 in this embodiment is SUS (steel wire or steel sheet), and the strength of SUS (steel wire or steel sheet) material is stronger than that of plastic to completely solve the problem.
  • the top is prone to dents during the use of traditional bags.
  • a reinforcing boss 408 is disposed on the outer side of the outer muscle 501 to further strengthen the strength of the box, and the reinforcing boss 408 and the outer muscle 501 are integrally formed.
  • a box reinforcement structure including a box body, and an inner muscle 502 and an outer muscle 501 are formed by extending outward at the box body periphery 40 of the box body for closing the box body. support the box.
  • the inner tendons 502 extend outward from one end of the peripheral edge 40 of the box along the extending direction of the peripheral edge 40 of the box, and the extension height H1 of the internal tendons 502 is in the range of 1.5-15 mm.
  • the extension height F2 of the inner tendon 502 is 6.23 mm.
  • the outer muscles 501 and the box body periphery 40 are not on the same plane, the height of the outer muscles 501 is higher than the height of the inner muscles 502, there is a predetermined gap S2 between the inner muscles 502 and the outer muscles 501, and the outer muscles 501 and the inner muscles 502
  • the width of the gap S2 between them ranges from 0.8 to 8 mm, preferably, in this embodiment, the width is 2.52 mm.
  • the outer muscle 501 is connected to the inner muscle 502 and the peripheral edge 40 of the box body through a connecting portion 403 as a whole.
  • a whole circle of structural reinforcements 503 is arranged between the gaps S2.
  • the shape of the structural reinforcements 503 is square or sheet, and the maximum diameter of the structural reinforcements 503 is in the range of 0.2-8 mm.
  • the structural reinforcement member 503 is square, and its diameter and width are about 2.52 mm, which is compatible with the gap S2 between the outer muscles 501 and the inner muscles 502 .
  • 501 clamps the structural reinforcement 503, and the structural strength of the structural reinforcement 503 is higher than the structural strength of the inner muscle 502 and the outer muscle 501, so that the structural reinforcement 503 is in close contact with the inner muscle 502 and the outer muscle 501 respectively. Support, used to strengthen the structural strength of the entire box.
  • the material used in the structural reinforcement 503 in this embodiment is SUS (steel wire or steel sheet), and the strength of SUS (steel wire or steel sheet) material is stronger than that of plastic to completely solve the problem.
  • the top is prone to dents during the use of traditional bags.
  • the reinforcement structure of the tie-rod box in Embodiments 3 and 4 completely cancels the support of the S-shaped or V-shaped hollow skeleton structure, and makes use of the existing space.
  • Structural reinforcements are added to the gap between the outer and inner bones of the box, and then a support structure is formed inside the box to meet the demand for the overall strength of the box.
  • the processing cost of the box mold is also reduced, and the cost of plastic materials for the whole box is reduced, which further reduces the overall quality of the box, and at the same time utilizes the structural strength of the structural reinforcement.
  • the structural strength is higher than that of the inner muscles and the outer muscles, and the inner muscles and the outer muscles clamp the structural reinforcements to form an overall reinforced structure.
  • the overall strength is significantly higher than the strength of the original plastic. Easy to dent.
  • the cooperation of reinforcements, columns, wires, etc. such as SUS (steel wire or steel sheet) with the box body can be based on the shape and shape of the box body.
  • the strength needs to be selected for support that is, the structural reinforcement along the gap between the inner tendon and the outer tendon can be arranged in a full circle, half circle, partial or segmented arrangement, as shown in Figure 13 (the outer frame refers to the box body, the inner frame refers to the structural reinforcement 503), which does not necessarily need to be arranged in a whole circle, and the method is flexible.
  • the shape of the structural reinforcement 503 can be a circle, an ellipse, a rectangle, a trapezoid, an S shape, a V shape, an M shape, a sheet shape, a ring shape or other shapes, and is not limited to the shapes provided by the above two embodiments.
  • the structural reinforcement member 503 may be made of glass fiber or carbon fiber material, or metal material such as aluminum, nickel, copper, etc., in addition to SUS material (steel wire or steel sheet).
  • the present invention also provides a trolley case, which includes an upper cover and a lower cover that can be opened and closed with the upper cover, and the upper cover and the lower cover are provided with the box reinforcement structure as above at the inner edge of the box body.

Abstract

一种拉杆箱（A），包括上盖（10）和与上盖（10）可开合的下盖（20），在上盖（10）的内侧和下盖（20）的内侧分别设置有筋条（30），筋条（30）位于上盖（10）和下盖（20）开合处附近的内侧周缘处，在上盖（10）和下盖（20）闭合时，位于上盖（10）的内侧和下盖（20）的内侧的筋条（30）形成支撑区域用于防止上盖（10）和下盖（20）变形并共同支撑箱体，筋条（30）与上盖（10）的内侧周缘或下盖（20）的内侧周缘之间存在一定间隙空间（S），筋条（30）包括筋板（301）和连接两相邻筋板（301）的连接块（302），且筋板（301）和连接块（302）交替布置，其中筋板（301）与上盖（10）或下盖（20）的内侧形成镂空缺口（Q），筋板（301）与上盖（10）的内侧周缘或下盖（20）的内侧周缘之间设置有第一加强筋块（303）。通过筋板（301）设置镂空缺口（Q）、在两相邻筋板（301）之间设置连接块（302）以及设置第一加强筋块（303），使得筋条（30）具有镂空结构的同时具有一定强度，减轻箱体整体的质量且可防止箱体形变。

Description

拉杆箱 技术领域
本发明涉及行李箱领域，尤其涉及一种拉杆箱。
背景技术
现有技术中的拉杆箱容易在外力作用下产生形变，特别是箱盖部分在外力压迫下容易内凹、变形，为了防止拉杆箱过度形变对实际使用造成困扰和不变，目前在拉杆箱的实际生产中，会在设计的时候增加箱体的厚度以增强其结构强度，但这不仅增加了材料成本，还增加了拉杆箱的重量，在拖动或举升时对使用者造成一定不便。而轻量化是拉杆箱的未来发展方向之一，实有必要对箱体结构进行进一步的改进。
发明内容
本发明提供了一种拉杆箱，其筋条具有镂空结构，筋条镂空结构更加优化，减轻了箱体整体的质量，轻量化效果好。其具体的技术方案如下：
一种拉杆箱，包括上盖和与上盖可开合的下盖，在所述上盖的内侧和所述下盖的内侧分别设置有筋条，所述筋条位于所述上盖和所述下盖开合处附近的内侧周缘处，在所述上盖和所述下盖闭合时，位于所述上盖的内侧和所述下盖的内侧的所述筋条形成支撑区域用于防止所述上盖和所述下盖变形并共同支撑箱体，所述筋条与所述上盖的内侧周缘或所 述下盖的内侧周缘之间存在一定间隙空间，所述筋条包括筋板和连接两相邻所述筋板的连接块，且所述筋板和所述连接块交替布置，其中所述筋板与所述上盖或所述下盖的内侧形成镂空缺口，所述筋板与所述上盖的内侧周缘或所述下盖的内侧周缘之间设置有第一加强筋块。
作为进一步改进，所述筋板呈V型结构，在每相邻的两所述筋板的V型结构的两侧面通过所述连接块连接为一体，所述筋板的V型结构与所述上盖或所述下盖的内侧形成所述镂空缺口。
作为进一步改进，所述筋板的V型结构的内凹侧朝向所述上盖或所述下盖的内侧，所述筋板的V型结构的外凸侧位于所述间隙空间内，所述连接块与每相邻的两所述筋板的V型结构的外凸侧连接。
作为进一步改进，所述筋板、所述连接块、所述第一加强筋块与所述上盖或所述下盖为一体成型。
作为进一步改进，所述第一加强筋块设置在所述筋板的V型结构外凸侧的最凸出位置，在所述连接块与所述上盖内侧周缘或所述下盖内侧周缘之间设置有第二加强筋块。
作为进一步改进，所述筋板的高度大于所述第一加强筋块和所述第二加强筋块的高度，所述筋板的高度小于所述上盖内侧周缘或所述下盖内侧周缘的高度，所述筋板的高度等于所述连接块的高度，且所述筋板的最顶端与所述连接块的最顶端平齐。
作为进一步改进，在所述上盖的外侧周缘或所述下盖的外侧周缘有一向外水平延伸的台阶结构，所述台阶结构与所述上盖的外侧周缘或所述下盖的外侧周缘配合用于吸收橡皮条和拉链布的厚度。
作为进一步改进，在所述台阶结构底面设置有加强凸台，所述加强凸台与所述上盖的外侧周缘或所述下盖的外侧周缘一体成型。
作为进一步改进，所述筋条的最顶端与所述上盖的外侧周缘的最顶端或所述下盖的外侧周缘的最顶端的距离为8mm至20mm；所述台阶结构的上表面与所述上盖的外侧周缘的最顶端或所述下盖的外侧周缘的最顶端的距离为5mm至15mm；所述台阶结构的延伸长度为0.5mm至5mm；所述上盖或所述下盖的上部分的侧壁厚度小于所述上盖或所述下盖的下部分的侧壁厚度。
作为进一步改进，所述筋板的V型结构的两端之间的距离范围为15mm至50mm,每相邻的两所述第一加强筋块之间的距离范围为50mm至120mm。
作为本发明的另一个方面，本发明还提供了一种箱体强化结构，包括箱体，在所述箱体的箱体周缘处向外延伸形成内筋骨和外筋骨用于在箱体闭合时对箱体进行支撑，所述内筋骨和所述外筋骨之间存在一定预设的间隙，在所述间隙之间设置结构加强件，其中所述结构加强件的结构强度高于所述内筋骨和所述外筋骨的结构强度,所述内筋骨和所述外筋骨夹住所述结构加强件，使得所述结构加强件分别与所述内筋骨和所述外筋骨紧密抵接用于加强整个箱体的结构强度。
作为进一步改进，所述内筋骨自所述箱体周缘的一端沿着所述箱体周缘的延伸方向向外延伸，且所述内筋骨的延伸高度为1.5-15mm；所述外筋骨与所述箱体周缘不在同一平面，所述外筋骨的高度高于所述内筋骨的高度，且所述外筋骨与所述内筋骨之间的所述间隙的宽度范围为 0.8-8mm；所述外筋骨通过一连接部与所述内筋骨和所述箱体周缘连接为一体。
作为进一步改进，所述结构加强件沿所述内筋骨和所述外筋骨之间的间隙设置一整圈、半圈或者分段式布置。
作为进一步改进，所述结构加强件的形状为圆形、椭圆、长方形、梯形、S形、V形、M形、片状、环状之中的任意一种。
作为进一步改进，所述结构加强件的形状为圆形或环形，且所述结构加强件的最大直径范围在0.8-8mm；或，所述结构加强件的形状为方形或片状，且所述结构加强件的最大宽度在0.2-8mm；
作为进一步改进，所述结构加强件为钢丝、钢片、铝片、镍片、铜片(或管或线)等金属、玻璃纤维或碳纤维中的其中任一种材料制成。
此外，本发明还提供一种拉杆箱，包括上盖和与所述上盖可开合的下盖，所述上盖和所述下盖构成箱体，且所述上盖和所述下盖在箱体周缘位置的内部设置有如上所述结构的一种箱体强化结构。
本发明有益效果：
本发明所述提供的一种拉杆箱，在上盖和所述下盖闭合时，位于上盖的内侧和下盖的内侧的筋条形成支撑区域用于防止上盖和下盖变形并共同支撑箱体，筋条具有包括筋板和连接两相邻筋板的连接块，且筋板和连接块交替布置，其中筋板与上盖或下盖的内侧形成镂空缺口，筋板与上盖的内侧周缘或下盖的内侧周缘之间设置有第一加强筋块。通过筋板与上盖或下盖的内侧形成镂空缺口、在两相邻筋板之间设置连接块以及设置加强筋块，使得筋条具有镂空结构的同时具有一定强度以满足箱 体强度要求，在减轻箱体整体的质量的同时还可以防止箱体形变，而且相应地减少箱体的制造材料实现轻量化，同时也降低了箱体制造成本。
附图说明
为了更清楚地说明本发明实施方式的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1是本发明的提供的一种拉杆箱的三维结构示意图；
图2是第一实施例中的所述拉杆箱的筋条的局部放大图；
图3是第一实施例的筋条的断面结构示意图；
图4是第二实施例中提供的所述拉杆箱的筋条的局部放大图；
图5是第二实施例的筋条的断面结构示意图；
图6是第一实施例中的所述拉杆箱的筋条的剖视图；
图7是第二实施例中的所述拉杆箱的筋条的剖视图。
图8是本发明的提供的第三实施例中的箱体强化结构的剖面示意图；
图9是图8的局部放大图；
图10是第三实施例中的结构加强件的三维结构示意图；
图11是第三实施例的箱体强化结构的断面结构示意图；
图12是第四实施例的箱体强化结构的断面结构示意图；
图13是结构加强件的四种布置方式示意图。
其中，主要元件符号说明如下所示：
A-本发明提供的拉杆箱；
10-上盖；
20-下盖；
30-筋条；301-筋板；302-连接块；303-第一加强筋块；304-第二加强筋块；Q-镂空缺口；S-间隙空间；
40-箱体周缘；401-第一内侧壁；402-第二内侧壁；403-连接部；4031-连接部内侧壁；405-第一外侧壁；406-第二外侧壁；407-台阶结构；408-加强凸台；
501-外筋骨；502-内筋骨；503-结构加强件
H1-第一实施例中箱体周缘的最顶端到筋条最底端的距离；
H2-第二实施例中箱体周缘的最顶端到筋条最底端的距离；
A1-第一实施例中箱体周缘的最顶端到筋条最顶端的距离；
A2-第二实施例中箱体周缘的最顶端到筋条最顶端的距离；
B1-第一实施例中箱体周缘最顶端处的壁厚；
B2-第二实施例中箱体周缘最顶端处的壁厚；
C1-第一实施例中箱体周缘的下部分侧壁的壁厚；
C2-第二实施例中箱体周缘的下部分侧壁的壁厚；
D-第二实施例中台阶结构的延伸长度；
E-第二实施例中台阶结构的上端面到箱体周缘最顶端处的距离。
F1-第三实施例中内筋骨的高度；
F2-第四实施例中内筋骨的高度；
S1-第三实施例中内筋骨和外筋骨之间的间隙；
S2-第四实施例中内筋骨和外筋骨之间的间隙。
具体实施方式
为使本发明实施方式的目的、技术方案和优点更加清楚，下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。因此，以下对在附图中提供的本发明的实施方式的详细描述并非旨在限制本发明要求保护的范围，而是仅仅表示本发明的选定实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
以下，将结合具体实施例及其相关附图对本发明所提供的一种拉杆箱进行更详细的阐述。
第一实施例
如图1所示，在本实施例中提供了一种拉杆箱A，该拉杆箱包括上盖10和与上盖10可开合的下盖20，上盖10的内侧和下盖20的内侧分别设置有筋条30，筋条30位于上盖10和下盖20开合处附近的内侧周缘处，在上盖10和下盖20闭合时，位于上盖10的内侧和下盖20的内侧的筋条30形成支撑区域用于防止上盖10和下盖20变形并共同支撑箱体。
在本实施例中，参照图2，筋条30与上盖10的内侧周缘或下盖20的内侧周缘之间存在一定间隙空间S，筋条30具有包括筋板301和连接两相邻筋板301的连接块302，且筋板301和连接块302交替布置，其中筋板301与上盖10或下盖20的内侧形成镂空缺口Q，筋板301与上盖10的内侧周缘或下盖20的内侧周缘之间设置有第一加强筋块303。
具体的，如图2和图3所示，在本实施例中，上盖10和下盖20在两者开合处的箱体周缘内侧均包括第一内侧壁401、第二内侧壁402以及连接第一内侧壁401和第二内侧壁402的连接部403，筋条30就设置于连接部403的内侧壁4031上。由于筋条30在上盖10和下盖20上均有设置且上盖10和下盖20两者开合处的箱体周缘内侧的结构相同，因此，以下将以上盖10为例对筋条30的结构进行进一步阐述以节约篇幅。
在本实施例中，筋条30包括筋板301和连接两相邻筋板301的连接块302，且筋板301和连接块302交替布置，其中筋板301与上盖10内侧的连接部403的内侧壁4031形成镂空缺口Q。
具体地，如图2和图3所示，在本实施例中，筋条30与上盖10的第一内侧壁401之间存在一定间隙空间S，其中筋板301呈V型结构。筋板10的V型结构内凹的两侧面朝向上盖10内侧，筋板301的V型结构外凸的两侧面位于间隙空间S内，在相邻的两筋板301的V型结构外凸侧的两侧面通过连接块302连接为一体，如图1所示，连接块302位于两相邻筋板301之间。筋板301的V型结构内凹的两侧面与连接部403的内侧壁4031形成镂空缺口Q。通过筋板301的V型结构与连接部403的内侧壁4031形成的镂空缺口Q，一方面减少了箱体的材料使用，降低了成本，另一方面也减少了箱体的质量，达到了轻量化的目的。
继续参照图2和图3，为了保证筋条30为箱体提供足够的支撑强度，筋板301的与上盖10的第一内侧壁401之间设置有第一加强筋块303，在本实施例中，第一加强筋块301设置在筋板10的V型结构外凸侧的最凸出位置处。但在其他布置方式中，第一加强筋块301也可以设置于其他位置，在单个筋条单元内的第一加强筋块301数量也不一定是单个，亦可以设置多个，只要可以满足强度要求即可。
此外，为了满足强度要求，连接块302为实心结构，连接块302分别与相邻的两筋板301的V型结构外凸侧的两侧面连接为一体，且连接范围至少从两筋板301的V型结构的最顶端到其中点位置以形成坚实的筋条结构，从俯视视角看，该结构呈梯形。
考虑到现有技术中的筋条结构易对外观面产生缩水风险，在本实施例中，如图2所示，筋板301的高度大于第一加强筋块303的高度，且小于上盖10的第一内侧壁401的高度，筋板301的高度等于连接块302 的高度，且筋板301的最顶端与连接块302的最顶端平齐。通过对筋条各部分结构的高度差进行优化，本实施例所提供的筋条结构可以很大程度改善外观面的缩水风险，相对于现有技术，每个V型镂空结构的高度相对箱体侧壁的高度有明显提高，两者高度差明显减少，有助于减少外观面的缩水风险。
在本实施例中，筋板301、连接块302、第一加强筋块303与上盖10为一体成型。采用一体成型的加工方式，工序少，而且由于设计了V型的镂空缺口，在满足强度需求的同时，比原设计简化了模具的设计和加工成本，可以很好的增加模具的使用寿命，有利于实际批量生产。
进一步的，相对于现有技术，本实施例中所提供的筋条结构采用了大V型镂空结构，单个筋条结构的尺寸为原先的设计的两倍以上，筋板301的V型结构的两端之间的距离范围为15mm至50mm,每相邻的两第一加强筋块303之间的距离范围为50mm至120mm。筋板301的V型结构的两端之间的距离设置为28mm,相邻的两第一加强筋块303之间的距离设置为55mm。
经过试验分析，在同尺寸箱盖利用原密集形的筋条结构设计中，经分析单片箱盖重量为785克，而同尺寸箱盖利用本实施例中的V形的镂空结构设计，经分析单片箱盖重量为759克，即采用本实施例的V型镂空结构的每片箱盖(即上盖或下盖)相对于现有技术可以节约26g，整个箱体(上盖和下盖)可以节约52g，显著减少了箱体的质量，实现了轻量化，节约了材料成本。特别在批量生产时，该效果将更加显著，例如，当每年计划生产200万只箱子时，采用本实施例的箱体结构可以节 约约104000KG材料，极大的节省了材料成本。
通过采用了大尺寸的V型镂空结构(即镂空缺口Q)，且每个V型镂空结构的V型两端之间没有材料连接，节省了更多材料，在每两个V型镂空结构之间通过实心的连接块302将两者的连结为一体，以保证筋条30的整体结构强度。此外，由于本实施例中的V型镂空结构的尺寸相对于现有技术更加大，因此箱体整体需要布置的筋条单元个数相对减少，再结合每个V型镂空缺口的V型两端之间没有材料连接，因此对箱体整体质量的轻量化效果有显著改善。
进一步地，筋条301与上盖10的外侧周缘的最外侧或下盖20的外侧周缘的最外侧的距离为8mm至20mm。如图6所示，在第一实施例中，箱体周缘的最顶端到筋条最底端的距离H1为21.22mm，上盖10的箱体周缘的最顶端到筋条301最顶端的高度A1的距离为11mm，箱体周缘最顶端处的壁厚B1为1.8mm，箱体周缘的下部分侧壁的壁厚C1为2.32mm。在满足产品需要的同时，对箱体的车缝侧壁厚度尺寸进行了调整,使得本实施例的新设计很大程度上改善了注塑材料的流动性，提高了生产效率。
第二实施例
本实施例中提供的一种拉杆箱，其结构和原理与第一实施例中所示的拉杆箱基本一致，其不同之处在于：
除了设置有第一加强筋块301之外，如图4所示，本实施例中在连接块302与上盖10(或下盖20)的第一内侧壁401之间设置有第二加强筋块304。通过设置第一加强筋块301和第二加强筋块304，进一步 加强了筋条30与上盖10或下盖20的连结强度，进而提高了对箱体的支撑强度。
此外，在本实施例中，如图5所示，在上盖10(或下盖20)的第一外侧壁405和第二外侧壁406之间有一向外水平延伸的台阶结构407，该台阶结构407与上盖10(或下盖20)的第一外侧壁405相互配合用于吸收橡皮条和拉链布的厚度。相对于现有技术，本实施例在箱体的侧壁增加了台阶结构407，利用台阶的厚度差吸收橡皮条与拉链布的厚度，使整箱更整体更具美观性，且箱体强度更强及生产注塑流动性更好，更利与批量生产。
进一步地，在台阶结构407的底面设置有加强凸台408，加强凸台408与上盖10(或下盖20)的第二外侧壁406一体成型以增强台阶结构407的强度，更好的满足外观的整体性且增强了上盖10和下盖20该部分的强度性能，增强了箱体强度。
考虑到现有技术中的筋条结构易对外观面产生缩水风险，在本实施例中，筋板301的高度大于第一加强筋块303和第二加强筋块304的高度，筋板301的高度小于上盖10的内侧周缘或下盖20的内侧周缘的高度，筋板301的高度等于连接块302的高度，且筋板301的最顶端与连接块302的最顶端平齐。通过对筋条各部分结构的高度差进行优化，本实施例所提供的筋条结构可以很大程度改善外观面的缩水风险，相对于现有技术，每个V型镂空结构的高度相对箱体侧壁的高度有明显提高，两者高度差明显减少，有助于减少外观面的缩水风险。
进一步的，相对于现有技术，本实施例中所提供的筋条结构采用了 大V型镂空结构，单个筋条结构的尺寸为原先的设计的两倍以上，筋板301的V型结构的两端之间的距离范围为15mm至50mm,每相邻的两第一加强筋块303之间的距离范围为50mm至120mm。在本实施例中的筋板301的V型结构的两端之间的距离设置为38mm,相邻的两第一加强筋块303之间的距离设置为52mm。
通过采用了大尺寸的V型镂空结构(即镂空缺口Q)，且每个V型镂空结构的V型两端之间没有材料连接，节省了更多材料，在每两个V型镂空结构之间通过实心的连接块302将两者的连结为一体，以保证筋条30的整体结构强度。
此外，由于本实施例中的V型镂空结构的尺寸相对于现有技术更加大，因此箱体整体需要布置的筋条单元个数相对减少，再结合每个V型镂空缺口的V型两端之间没有材料连接，因此对箱体整体质量的轻量化效果有显著改善，而且在同单位长度内，箱体需要布置的筋条单元个数相对与原结构明显减少，镂空的空间更多。
进一步地，在满足产品需要的同时，新设计很大程度上改善了注塑材料的流动性，而且对箱体的车缝侧壁厚度尺寸进行了调整，筋条301与上盖10的外侧周缘的最外侧或下盖20的外侧周缘的最外侧的距离为8mm至20mm；台阶结构407的上表面与上盖10的外侧周缘的最外侧或下盖20的外侧周缘的最外侧的距离为5mm至15mm；台阶结构407的延伸长度为0.5mm至5mm。
在本实施例中，如图5和图7所示，筋条301的最顶端与上盖10或下盖20的第一内侧壁401的最外侧(即箱体周缘的最顶端)的距离 A2为11mm；台阶结构407的上表面与上盖10的外侧周缘的最外侧(即箱体周缘的最顶端)的距离E为10mm；台阶结构407的延伸长度D为1.96mm，此外箱体周缘40的最外侧(即最顶端)的厚度B2为1.34mm,箱体周缘的下部分侧壁的壁厚C2为3.46mm,且箱体周缘40的厚度自下部朝最外侧(即箱体周缘的最顶端)逐渐变薄，该设计很大程度上改善了注塑材料的流动性，提高了生产效率。
通过以上两个实施例的阐述，本发明的主要改进优点如下：
1)与现有技术不同，采用了大尺寸的V型镂空结构，且每个V型镂空结构的V型两端之间没有材料连接，节省了材料，在每两个V型镂空结构之间通过实心的连接块将两者的最高点连结为一体，且连接块至少与两相邻的V型镂空结构的外凸侧面连接，以保证筋条整体的结构强度。
2)由于镂空结构的尺寸相对于现有技术更加大，因此箱体整体需要布置的筋条单元个数相对减少，再由于每个V型镂空结构的V型两端之间没有材料连接，因此对箱体整体质量的轻量化效果有显著改善。
3)相对于现有技术，本发明在箱体的侧壁增加了台阶结构，利用台阶吸收橡皮条与拉链布的厚度，使整箱更整体更具美观性，且箱体强度更强及生产注塑流动性更好，更利与批量生产。
4)在台阶结构的基础上增加了加强凸台，利用凸台的高度更好的吸收橡皮条与拉链布的厚度，更好的满足外观的整体性及增强整体强度性能。
第三实施例
如图8至图11所示，在本发明中提供了一种箱体强化结构，包括箱体，在箱体的箱体周缘40处向外延伸形成内筋骨502和外筋骨501用于在箱体闭合时对箱体进行支撑。内筋骨502和外筋骨501之间存在一定预设的间隙，在间隙之间设置结构加强件503。其中，结构加强件503的结构强度高于内筋骨502和外筋骨501的结构强度,内筋骨502和外筋骨501夹住结构加强件503，使得结构加强件503分别与内筋骨502和外筋骨501紧密抵接用于加强整个箱体的结构强度。
具体地，在本实施例中，内筋骨502自箱体周缘40的一端沿着箱体周缘40的延伸方向向外延伸，且内筋骨502的延伸高度F1范围为1.5-15mm，优选地，在本实施例中，内筋骨502的延伸高度F1为8.48mm。外筋骨501与箱体周缘40不在同一平面，外筋骨501的高度高于内筋骨502的高度，内筋骨502和外筋骨501之间存在一定预设的间隙S1，且外筋骨501与内筋骨502之间的间隙S1的宽度范围为0.8-8mm，优选地，在本实施例中该宽度为3.57mm。如图11所示，外筋骨501通过一连接部403与内筋骨502和箱体周缘40连接为一体。
在间隙S1之间设置有一整圈结构加强件503，具体地，结构加强件503的形状为圆形或环形，且结构加强件503的最大直径范围在0.8-8mm。例如在本实施例中，如图11所示，结构加强件503呈圆形，其直径宽度大约为3.57mm，与外筋骨501与内筋骨502之间的间隙S1相适应，内筋骨502和外筋骨501夹住结构加强件503，且结构加强件503的结构强度高于内筋骨502和外筋骨501的结构强度,使得结构加强件503分别与内筋骨502和外筋骨501紧密抵接为两筋骨提供支持，用 于加强整个箱体的结构强度。
此外，在本实施例中所使用的结构加强件503采用的材料为SUS(钢丝或钢片)，利用SUS(钢丝或钢片)材料的强度比塑胶强度的更强的材料特性，彻底解决了在传统箱包使用过程中顶部容易凹陷问题。
在本实施例中，一加强凸台408设置在外筋骨501的外侧用于进一步加强箱体的强度，且加强凸台408与外筋骨501一体成型。
第四实施例
如图12所示，在本实施例中提供了一种箱体强化结构，包括箱体，在箱体的箱体周缘40处向外延伸形成内筋骨502和外筋骨501用于在箱体闭合时对箱体进行支撑。
在本实施例中，内筋骨502自箱体周缘40的一端沿着箱体周缘40的延伸方向向外延伸，且内筋骨502的延伸高度H1范围为1.5-15mm，优选地，在本实施例中，内筋骨502的延伸高度F2为6.23mm。外筋骨501与箱体周缘40不在同一平面，外筋骨501的高度高于内筋骨502的高度，内筋骨502和外筋骨501之间存在一定预设的间隙S2，且外筋骨501与内筋骨502之间的间隙S2的宽度范围为0.8-8mm，优选地，在本实施例中该宽度为2.52mm。如图12所示，外筋骨501通过一连接部403与内筋骨502和箱体周缘40连接为一体。
在间隙S2之间设置一整圈结构加强件503，具体地，结构加强件503的形状为方形或片状，且结构加强件503的最大直径范围在0.2-8mm。例如在本实施例中，如图12所示，结构加强件503呈方形，其直径宽度大约为2.52mm，与外筋骨501与内筋骨502之间的间隙S2 相适应，内筋骨502和外筋骨501夹住结构加强件503，且结构加强件503的结构强度高于内筋骨502和外筋骨501的结构强度,使得结构加强件503分别与内筋骨502和外筋骨501紧密抵接为两筋骨提供支持，用于加强整个箱体的结构强度。
此外，在本实施例中所使用的结构加强件503采用的材料为SUS(钢丝或钢片)，利用SUS(钢丝或钢片)材料的强度比塑胶强度的更强的材料特性，彻底解决了在传统箱包使用过程中顶部容易凹陷问题。
在实施例3和实施例4中的拉杆箱体强化结构相比于实施例1和实施例2的设计，完全取消了S型或V型镂空筋骨结构支撑，利用现有的空间，在箱体的外筋骨和内筋骨之间的间隙增设结构加强件，进而在箱体内部形成支撑结构，以满足对箱子整体使用强度的需求。同时，由于不再需要复杂的镂空筋骨，箱体模具的加工成本也降低了，并减少了整箱对塑胶的用料成本，进一步减轻了箱体的整体质量，同时利用结构加强件的结构强度高于内筋骨和外筋骨的结构强度的特点,以及内筋骨和外筋骨夹住结构加强件形成整体加强结构，其整体强度比原先塑胶的强度显著增加，彻底解决了在传统箱包使用过程中顶部容易凹陷问题。
此外，除了上述两个实施例中采用的整圈的结构加强件的方式外，SUS(钢丝或钢片)等等加强片、柱、线等与箱体的配合可以跟据箱体的造型及强度需要进行支撑选择，即结构加强件沿所述内筋骨和所述外筋骨之间的间隙可以是整圈、半圈、局部或分段式布置，如图13所示(外框指代箱体，内框指代结构加强件503)，不一定需要采用整圈的布置形式，方式灵活。
结构加强件503的形状可以为圆形、椭圆、长方形、梯形、S形、V形、M形、片状、环状或其他形状，并不限于上述两个实施例所提供的形状。
此外，所述结构加强件503除了采用SUS材质(钢丝或钢片)之外，还可以采用玻璃纤维或碳纤维材料，或铝、镍、铜等金属材料制成。
进一步地，本发明还提供了一种拉杆箱，包括上盖和与上盖可开合的下盖，上盖和下盖在箱体周缘位置的内部设置有如上述结构的箱体强化结构。
以上所述仅为本发明的优选实施方式而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种拉杆箱(A)，包括上盖(10)和与所述上盖(10)可开合的下盖(20)，在所述上盖(10)的内侧和下盖(20)的内侧分别设置有筋条(30)，所述筋条(30)位于所述上盖(10)和所述下盖(20)开合处附近的内侧周缘处，在所述上盖(10)和所述下盖(20)闭合时，位于所述上盖(10)的内侧和所述下盖(20)的内侧的所述筋条(30)形成支撑区域用于防止所述上盖(10)和所述下盖(20)变形并共同支撑箱体，其特征在于，所述筋条(30)与所述上盖(10)的内侧周缘或所述下盖(20)的内侧周缘之间存在一定间隙空间(S)，所述筋条(30)包括筋板(301)和连接两相邻所述筋板(301)的连接块(302)，且所述筋板(301)和所述连接块(302)交替布置，其中所述筋板(301)与所述上盖(10)或所述下盖(20)的内侧形成镂空缺口(Q)，所述筋板(301)与所述上盖(10)的内侧周缘或所述下盖(20)的内侧周缘之间设置有第一加强筋块(303)。
  2. 如权利要求1所述的拉杆箱，其特征在于，所述筋板(301)呈V型结构，在每相邻的两所述筋板(301)的V型结构的两侧面通过所述连接块(302)连接为一体，所述筋板(301)的V型结构与所述上盖(10)或所述下盖(20)的内侧形成所述镂空缺口(Q)。
  3. 如权利要求2所述的拉杆箱，其特征在于，所述筋板(10)的V型结构的内凹侧朝向所述上盖(10)或所述下盖(20)的内侧，所述筋板(301)的V型结构的外凸侧位于所述间隙空间(S)内，所述连接块(302)与每相邻的两所述筋板(301)的V型结构的外凸侧连接。
  4. 如权利要求3所述的拉杆箱，其特征在于，所述筋板(301)、所述连接块(302)、所述第一加强筋块(303)与所述上盖(10)或所述下盖(20)为 一体成型。
  5. 如权利要求3所述的拉杆箱，其特征在于，所述第一加强筋块(301)设置在所述筋板(10)的V型结构外凸侧的最凸出位置处，在所述连接块(302)与所述上盖(10)的内侧周缘或所述下盖(20)的内侧周缘之间设置有第二加强筋块(304)。
  6. 如权利要求5所述的拉杆箱，其特征在于，所述筋板(301)的高度大于所述第一加强筋块(303)和所述第二加强筋块(304)的高度，所述筋板(301)的高度小于所述上盖(10)的内侧周缘或所述下盖(20)的内侧周缘的高度，所述筋板(301)的高度等于所述连接块(302)的高度，且所述筋板(301)的最顶端与所述连接块(302)的最顶端平齐。
  7. 如权利要求1所述的拉杆箱，其特征在于，在所述上盖(10)的外侧周缘或所述下盖(20)的外侧周缘有一向外水平延伸的台阶结构(407)，所述台阶结构(407)与所述上盖(10)的外侧周缘或所述下盖(20)的外侧周缘配合用于吸收橡皮条和拉链布的厚度。
  8. 如权利要求7所述的拉杆箱，其特征在于，在所述台阶结构(407)的底面设置有加强凸台(408)，所述加强凸台(408)与所述上盖(10)的外侧周缘或所述下盖(20)的外侧周缘一体成型。
  9. 如权利要求7所述的拉杆箱，其特征在于，所述筋条的最顶端(301)与所述上盖(10)的外侧周缘的最顶端或所述下盖(20)的外侧周缘的最顶端的距离(A1,A2)为8mm至20mm；所述台阶结构(407)的上端面与所述上盖(10)的外侧周缘的最顶端或所述下盖(20)的外侧周缘的最顶端的距离(E)为5mm至15mm；所述台阶结构(407)的延伸长度(D)为0.5mm至5mm；所述上盖 或所述下盖的上部分的侧壁厚度小于所述上盖或所述下盖的下部分的侧壁厚度。
  10. 一种箱体强化结构，其特征在于，包括箱体，在所述箱体的箱体周缘(40)处向外延伸形成内筋骨(502)和外筋骨(501)用于在箱体闭合时对箱体进行支撑，所述内筋骨(502)和所述外筋骨(501)之间存在一定预设的间隙，在所述间隙之间设置结构加强件(503)，其中所述结构加强件(503)的结构强度高于所述内筋骨(502)和所述外筋骨(501)的结构强度,所述内筋骨(502)和所述外筋骨(501)夹住所述结构加强件(503)，使得所述结构加强件(503)分别与所述内筋骨(502)和所述外筋骨(501)紧密抵接用于加强整个箱体的结构强度。
  11. 如权利要求10所述的箱体强化结构，其特征在于，所述内筋骨(502)自所述箱体周缘(40)的一端沿着所述箱体周缘(40)的延伸方向向外延伸，且所述内筋骨(502)的延伸高度为1.5-15mm；所述外筋骨(501)与所述箱体周缘(40)不在同一平面，所述外筋骨(501)的高度高于所述内筋骨(502)的高度，且所述外筋骨(501)与所述内筋骨(502)之间的所述间隙的宽度范围为0.8-8mm；所述外筋骨(501)通过一连接部(403)与所述内筋骨(502)和所述箱体周缘(40)连接为一体。
  12. 如权利要求11所述的箱体强化结构，其特征在于，所述结构加强件(503)沿所述内筋骨(502)和所述外筋骨(501)之间的间隙设置一整圈、半圈或者分段式布置。
  13. 如权利要求12所述的箱体强化结构，其特征在于，所述结构加强件(503)的形状为圆形或环形以及方形或片状，且所述结构加强件(503)的环形或圆形最大直径范围在0.8-8mm。所述方形或片状结构加强件的最大宽度在0.2-8mm。
  14. 一种拉杆箱，其特征在于，包括上盖和与所述上盖可开合的下盖，所述上盖和所述下盖构成箱体，且所述上盖和所述下盖在箱体周缘位置的内部设置有如权利要求10-13中任一项所述的箱体强化结构。
PCT/CN2021/134768 2020-12-01 2021-12-01 拉杆箱 WO2022116993A1 (zh)

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