Packaging corner protector
By combining the rigid corner protector body with the foam corner, an impact-resistant skeleton and an energy-absorbing buffer layer are formed, which solves the problems of the foam corner being easily broken and the transmission of impact force, and achieves a dual protection effect for the corners of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN XIBAO HARDWARE PROD CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-04-28
AI Technical Summary
Existing foam corner protectors are prone to breakage or transmit impact force during severe impacts, causing damage to the product corners and failing to effectively protect the product corners.
The corner protector body is made of rigid material, with a corner protector cavity and abutment protrusion. It is fitted onto the corner of the product or foam corner to form a dual protection system of impact-resistant skeleton and energy-absorbing buffer layer. A gap is provided between the product corner and the corner protector cavity to avoid stress concentration.
In the event of a severe impact, it reduces the risk of damage to the foam corners, decreases the probability of damage to the corners and edges of the product, and improves the protective effect.
Smart Images
Figure CN224171565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging and transportation technology, and in particular to a packaging corner protector. Background Technology
[0002] In the packaging and transportation of existing industrial products (such as sinks, furniture, home appliances, precision instruments, glassware, etc.), the corners of the products are relatively easy to be damaged by collisions and impacts during loading, unloading, and handling due to their protruding positions. To mitigate this risk, some manufacturers use foam corner protectors (commonly known as "foam corners") to cover the corners of products, allowing the foam to absorb impact energy through its own compression and deformation. However, further research by the inventors revealed that: 1. Foam corners are brittle; under severe impact, they are prone to breaking or crushing beyond their tolerance limit, thus failing to provide cushioning and energy absorption; 2. Even if the foam corner retains its shape during a severe impact (undamaged state), the impact force is still transmitted through the foam corner to the corner tip of the product (see reference...). Figure 4 As shown in the figure, the corners of the product are prone to local damage (damage to the corner of the product). Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a packaging corner protector.
[0004] A packaging corner protector according to an embodiment of the present invention includes a corner protector body made of rigid material. The corner protector body has a corner protector cavity, and the cavity sidewall of the corner protector cavity has an abutting protrusion. The corner protector body can be fitted onto the corner of a product through the corner protector cavity, so that the abutting protrusion abuts against the corner of the product, and a first gap is formed between the corner tip of the product and the cavity sidewall of the corner protector cavity; or, the corner protector body can be fitted onto a foam corner attached to the corner of a product through the corner protector cavity, so that the abutting protrusion abuts against the foam corner, and a first gap is formed between the corner tip of the foam corner and the cavity sidewall of the corner protector cavity.
[0005] A packaging corner protector according to an embodiment of the present invention has at least the following features:
[0006] Beneficial effects:
[0007] On the one hand, the rigid corner protectors of this application can be fitted onto the corners of the product in conjunction with foam corner protectors (specifically, the foam corner protector is fitted onto the product corner, and the corner protector body is fitted onto the foam corner). The outer rigid corner protector body forms an impact-resistant skeleton, while the inner foam corner protector forms an energy-absorbing buffer layer. Together, they form a dual protection system of "rigid protection + flexible energy absorption" for the product corners, significantly reducing the damage rate of the product corners in the event of a severe collision. It is understood that the foam corner protector, with its impact-resistant skeleton (i.e., the fitted corner protector body), can significantly reduce the risk of damage due to excessive stress in the event of a severe collision.
[0008] On the other hand, when the corner protector body is directly fitted onto the corner of the product, there is a first gap between the corner head of the product and the cavity sidewall of the corner protector cavity. In other words, the corner head of the product does not contact the cavity sidewall of the corner protector cavity. Therefore, the impact force is directly transmitted from the abutting protrusion to the base of the product corner, so as to avoid stress concentration at the corner head of the product corner and thus greatly reduce the probability of damage to the corner head of the product corner.
[0009] Furthermore, when the corner protector body is fitted onto the foam corner of the product, a first gap is provided between the corner tip of the foam corner and the sidewall of the corner protector cavity. In other words, the corner tip of the foam corner does not contact the sidewall of the corner protector cavity. Therefore, the impact force is transmitted from the abutting protrusion through the foam corner's base to the base of the product corner, thus avoiding stress concentration at the corner tip and significantly reducing the probability of damage to the corner tip. It can be understood that the impact force is first transmitted from the abutting protrusion to the foam corner's base, avoiding stress concentration at the corner tip and effectively preventing the corner tip from being crushed.
[0010] According to some embodiments of the present invention, the corner protector body is provided with three triangular plates, which are connected to make the corner protector body form a triangular pyramid structure, and the three triangular plates together form the corner protector cavity.
[0011] According to some embodiments of this utility model, the corner protector body has a regular triangular pyramid structure.
[0012] According to some embodiments of the present invention, the triangular plate portion is recessed toward the corner protection cavity to form the abutting protrusion.
[0013] According to some embodiments of the present invention, the three triangular plates are provided with a first convex abutting surface at the connecting vertices.
[0014] According to some embodiments of the present invention, the sides of two adjacent triangular plates are provided with a second convex abutting surface, and the second abutting surface extends along the length direction of the corresponding side.
[0015] According to some embodiments of the present invention, the bottom edge of the triangular plate is provided with an outwardly bent edge.
[0016] According to some embodiments of this utility model, the thickness of the triangular plate is less than the thickness of the folded edge. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a structural diagram of an embodiment of the packaging corner protector of this utility model;
[0019] Figure 2 for Figure 1 Another structural diagram of the packaging corner protectors shown;
[0020] Figure 3 for Figure 1 The cross-sectional view shown is of the packaging corner protectors fitted behind the foam corners.
[0021] Figure 4 This is a simplified structural diagram of one embodiment of the corner portion of a product.
[0022] Figure label:
[0023] Corner protector body 100, triangular plate 110;
[0024] Corner guard cavity 210, abutting protrusion 211, first gap 220, first abutting curved surface 230, second abutting curved surface 240, folded edge 250, second gap 260;
[0025] Product corner 300, corner head portion 310, product corner base 320;
[0026] Foam corner 400, corner head of foam corner 410, base of foam corner 420. Detailed Implementation
[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0028] In the description of this utility model, the use of terms such as first, second, third, fourth, and fifth is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.
[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0031] Reference Figures 1 to 4 This utility model provides a packaging corner protector, which includes a corner protector body 100 made of rigid material. The corner protector body 100 has a corner protector cavity 210, and the cavity sidewall of the corner protector cavity 210 has an abutment protrusion 211. The corner protector body 100 can be fitted onto the corner of the product 300 through the corner protector cavity 210, so that the abutment protrusion 211 abuts against the corner of the product 300, and a first gap 220 is formed between the corner head of the product 300 and the cavity sidewall of the corner protector cavity 210; or, the corner protector body 100 can be fitted onto a foam corner 400 installed on the corner of the product 300 through the corner protector cavity 210, so that the abutment protrusion 211 abuts against the foam corner 400, and a first gap 220 is formed between the corner head of the foam corner 400 and the cavity sidewall of the corner protector cavity 210.
[0032] Understandably, the material of the corner protector body 100 can be set as hard plastic, metal alloy, etc.
[0033] It is understood that the corner protectors of this application can be used in two ways. Specifically, one way is to directly attach them to the corner 300 of the product to protect the corner 300 of the product alone. The other way is to attach them to the foam corner 400 attached to the corner 300 of the product to work together with the foam corner 400 to protect the corner 300 of the product.
[0034] It is understood that the corner protector body 100 is fitted onto the corner portion 300 of the product through the corner protector cavity 210, so that the abutting protrusion 211 abuts against the corner portion 300 of the product, wherein the abutting protrusion 211 abuts against the base of the corner portion 300 of the product; the corner protector body 100 is fitted onto the foam corner 400 installed on the corner portion 300 of the product through the corner protector cavity 210, so that the abutting protrusion 211 abuts against the foam corner 400, wherein the abutting protrusion 211 abuts against the base of the foam corner 400.
[0035] Understandably, referring to Figure 3 The corner portion of foam corner 400 is shown as reference numeral 410, and the base of foam corner 400 is shown as reference numeral 420; refer to Figure 4 The corner portion of the product corner 300 is shown as numeral 310, and the base of the product corner 300 is shown as numeral 320.
[0036] Through the above structure, 1. On the one hand, the rigid corner protector of this application can be fitted onto the corner 300 of the product in conjunction with the foam corner 400 (specifically, the foam corner 400 is fitted onto the corner 300 of the product, and the corner protector body 100 is fitted onto the foam corner 400). The outer rigid corner protector body 100 forms an impact-resistant skeleton, and the inner foam corner 400 forms an energy-absorbing buffer layer. The two work together to form a dual protection system of "rigid protection + flexible energy absorption" for the corner 300 of the product, which can greatly reduce the damage rate of the corner 300 in the event of a relatively severe collision. It can be understood that the foam corner 400 has an impact-resistant skeleton (i.e., the corner protector body 100 is fitted), thus significantly reducing the risk of damage to the foam corner 400 due to excessive stress in the event of a relatively severe collision. 2. On the other hand, when the corner protector body 100 is directly fitted onto the corner portion 300 of the product, a first gap 220 is provided between the corner head portion of the product corner portion 300 and the cavity sidewall of the corner protector cavity 210. In other words, the corner head portion of the product corner portion 300 does not contact the cavity sidewall of the corner protector cavity 210. Therefore, the impact force is directly transmitted from the abutment protrusion 211 to the base of the product corner portion 300, which can avoid stress concentration at the corner head portion of the product corner portion 300, thereby greatly reducing the probability of damage to the corner head portion of the product corner portion 300. 3. Furthermore, when the corner protector body 100 is fitted onto the foam corner 400 installed on the corner portion 300 of the product, a first gap 220 is provided between the corner head portion of the foam corner 400 and the cavity sidewall of the corner protector cavity 210 (see reference). Figure 3As shown in the diagram, in other words, the corner portion of the foam corner 400 does not contact the cavity sidewall of the corner protector cavity 210. Therefore, the impact force is transmitted from the abutting protrusion 211 through the base of the foam corner 400 to the base of the product corner 300, thus avoiding stress concentration at the corner portion of the product corner 300 and significantly reducing the probability of damage to the corner portion of the product corner 300. It can be understood that the impact force is first transmitted from the abutting protrusion 211 to the base of the foam corner 400, avoiding stress concentration at the corner portion of the foam corner 400, and thus effectively preventing the corner portion of the foam corner 400 from being crushed and damaged.
[0037] In this embodiment, refer to Figure 1 and Figure 2 The corner protector body 100 is provided with three triangular plates 110. The three triangular plates 110 are connected to make the corner protector body 100 have a regular triangular pyramid structure. The three triangular plates 110 together form the corner protector cavity 210. The triangular plates 110 are partially recessed toward the corner protector cavity 210 to form the abutting protrusion 211.
[0038] In some embodiments, three triangular plates 110 are connected to make the corner protector body 100 have a regular tetrahedral structure.
[0039] In some embodiments, the triangular plate 110 is provided with the aforementioned abutment protrusion 211 on the plate side of the corner protection cavity 210.
[0040] In this embodiment, refer to Figure 1 The three triangular plates 110 are connected at their vertices by a first convex abutting surface 230.
[0041] With the above structure, on the one hand, the convex first abutment surface 230 transforms the sharp vertex into a convex surface, which can greatly reduce stress concentration under impact and prevent the corner protector body 100 from cracking. Moreover, the first abutment surface 230 can disperse the impact force to the three triangular plates 110 to improve the structural reliability of the corner protector body 100. On the other hand, the convex first abutment surface 230 can reduce the risk of scratching human skin due to accidental contact or bumping.
[0042] In this embodiment, refer to Figures 1 to 3 The two adjacent triangular plates 110 are provided with a second convex abutting surface 240 on their sides, and the second abutting surface 240 extends along the length direction of the corresponding side.
[0043] Through the above structure, the convex second abutment surface 240 can form an arched shear structure to improve the lateral compressive strength of the corner protector body 100.
[0044] In this embodiment, refer to Figures 1 to 3The triangular plate 110 has an outwardly bent flange 250 at its base. The thickness of the triangular plate 110 is less than the thickness of the flange 250.
[0045] It is understandable that when the corner protector body 100 is directly fitted onto the corner portion 300 of the product, a second gap 260 is provided between the base of the corner portion 300 and the folded edge 250; when the corner protector body 100 is fitted onto the foam corner 400 mounted on the corner portion 300 of the product, a second gap 260 is provided between the base of the foam corner 400 and the folded edge 250 (see reference). Figure 3 (As shown).
[0046] With the above structure, on the one hand, the outwardly bent edge 250 facilitates demolding of the packaging corner protector during production, and the second gap 260 formed by it facilitates the user's operation to separate the product corner 300 and the packaging corner protector, or to separate the foam corner 400 and the packaging corner protector; on the other hand, the thickened edge 250 can improve the impact resistance stability of the corner protector body 100.
[0047] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.
Claims
1. A type of packaging corner protector, characterized in that: The corner protector includes a rigid material corner protector body (100), which has a corner protector cavity (210). The cavity sidewall of the corner protector cavity (210) has an abutment protrusion (211). The corner protector body (100) can be fitted onto the corner of a product (300) through the corner protector cavity (210), so that the abutment protrusion (211) abuts against the corner of the product (300), and a first gap (220) is formed between the corner head of the product (300) and the cavity sidewall of the corner protector cavity (210). Alternatively, the corner protector body (100) can be fitted onto the foam corner (400) installed on the corner of the product (300) through the corner protector cavity (210), so that the abutting protrusion (211) abuts against the foam corner (400), and so that a first gap (220) is provided between the corner head portion of the foam corner (400) and the cavity sidewall of the corner protector cavity (210).
2. The packaging corner protector according to claim 1, characterized in that: The corner protector body (100) is provided with three triangular plates (110), which are connected to make the corner protector body (100) form a triangular pyramid structure. The three triangular plates (110) together form the corner protector cavity (210).
3. A packaging corner protector according to claim 2, characterized in that: The corner protector body (100) has a regular triangular pyramid structure.
4. A packaging corner protector according to claim 2, characterized in that: The triangular plate (110) is partially recessed toward the corner protection cavity (210) to form the abutment protrusion (211).
5. A packaging corner protector according to claim 2, characterized in that: The three triangular plates (110) are provided with a first convex abutting surface (230) at the connecting vertices.
6. A packaging corner protector according to claim 2 or 5, characterized in that: The two adjacent triangular plates (110) are provided with a second convex abutting surface (240) on their sides, and the second abutting surface (240) extends along the length direction of the corresponding side.
7. A packaging corner protector according to claim 2, characterized in that: The bottom edge of the triangular plate (110) is provided with an outwardly bent flange (250).
8. A packaging corner protector according to claim 7, characterized in that: The thickness of the triangular plate (110) is less than the thickness of the folded edge (250).