A skeleton-free foldable polygonal lantern based on PVC material combined with multiple light sources
Patent Information
- Application Number
- CN202522665066.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-16
AI Technical Summary
运输存储不便:传统灯笼多为固定框架,体积庞大,运输和存储成本高,且易在运输中损坏;
该基于PVC材料的无骨架多光源结合的可折叠多边形灯笼,PVC板一、顶盖一、底盖一、PVC板二、顶盖二、底盖二、PVC板三、顶盖三、底盖三、PVC板四、顶盖四、底盖四、PVC板五、顶盖五、底盖五、PVC板六、顶盖六、底盖六均通过多色透明PVC材料制成,该材质的选择使得灯笼整体呈现出通透、晶莹剔透的质感,打破了传统灯笼的沉闷感,在光照下能产生独特的折射效果,兼具古典灯笼的喜庆氛围与现代设计的玲珑、时尚感。PVC材料本身的可塑性允许使用各种其他颜色和表面质感的材料,以适应不同的审美需求。
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Figure CN224837082U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lantern technology, and in particular relates to a foldable polygonal lantern based on PVC material, which is a frameless multi-light source combination. Background Technology
[0002] Traditional lanterns are mostly made of paper, cloth, or rigid plastic, and their shapes are mainly round, cylindrical, or palace lantern-like. These traditional lanterns have the following drawbacks: Inconvenient transportation and storage: Traditional lanterns are mostly fixed frames, bulky, and have high transportation and storage costs, and are easily damaged during transportation; Material limitations: Paper lanterns are easily damaged and susceptible to water damage; cloth lanterns are easily soiled and difficult to clean; and ordinary hard plastic lanterns lack a transparent and dynamic visual effect.
[0003] In view of this, we propose a frameless, multi-light source combined with foldable polygonal lantern based on PVC material. Utility Model Content
[0004] The purpose of this invention is to provide a frameless, multi-light source combined foldable polygonal lantern based on PVC material to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides a frameless, multi-light source combined foldable polygonal lantern based on PVC material, comprising: PVC board 1, PVC board 3 connected to PVC board 2, PVC board 5 connected to PVC board 4, PVC board 6 between PVC board 5 and PVC board 1, top cover 1 and bottom cover 1 respectively on the upper and lower sides of PVC board 1, top cover 2 and bottom cover 2 respectively on the upper and lower sides of PVC board 2, top cover 3 and bottom cover 3 respectively on the upper and lower sides of PVC board 3, top cover 4 and bottom cover 4 respectively on the upper and lower sides of PVC board 4, top cover 5 and bottom cover 5 respectively on the upper and lower sides of PVC board 6, top cover 6 and bottom cover 6 respectively on the upper and lower sides of top cover 2, top cover 3, top cover 4, top cover 5 and top cover 6, a lamp holder is provided between top cover 2, top cover 3, top cover 4, top cover 5 and top cover 6, and a lamp tube is provided at the bottom of the lamp holder. Top cover 2, top cover 3, top cover 4, top cover 5, top cover 6, bottom cover 1, bottom cover 2, bottom cover 3, bottom cover 4, bottom cover 5 and bottom cover 6 are all fixed by elastic buckles.
[0006] In the above technical solution, the dimensions of PVC board one, PVC board two, PVC board three, PVC board four, PVC board five and PVC board six are equal, and PVC board one has a rectangular structure.
[0007] In this technical solution, the overall structural coordination is ensured, guaranteeing that PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5 and PVC board 6 can form a hexagonal structure.
[0008] In the above technical solution, the dimensions of the top cover 2, top cover 3, top cover 4, top cover 5 and top cover 6 are equal, and the dimensions of the bottom cover 1, bottom cover 2, bottom cover 3, bottom cover 4, bottom cover 5 and bottom cover 6 are equal, and the bottom cover 1 is an isosceles triangle structure.
[0009] In this technical solution, the overall structure is coordinated. When PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5 and PVC board 6 form a hexagon, top cover 2, top cover 3, top cover 4, top cover 5 and top cover 6 can be folded and folded together, and bottom cover 1, bottom cover 2, bottom cover 3, bottom cover 4, bottom cover 5 and bottom cover 6 can also be folded and folded together, so that the whole device forms a lantern.
[0010] In the above technical solution, the elastic buckle further includes: A circular block, wherein a post is fixedly installed at the bottom end of the circular block, and elastic posts are fixedly installed on both sides of the post.
[0011] In this technical solution, top cover 2, top cover 3, top cover 4, top cover 5, top cover 6, bottom cover 1, bottom cover 2, bottom cover 3, bottom cover 4, bottom cover 5, and bottom cover 6 all have pre-drilled holes. When using elastic buckles, top cover 2, top cover 3, top cover 4, top cover 5, and top cover 6 can be folded together. Then, the elastic posts on both sides of several insert posts are sequentially inserted into the holes between top cover 2 and top cover 3, between top cover 3 and top cover 4, between top cover 4 and top cover 5, between top cover 5 and top cover 6, between bottom cover 1 and bottom cover 2, between bottom cover 2 and bottom cover 3, between bottom cover 3 and bottom cover 4, between bottom cover 4 and bottom cover 5, and between bottom cover 5 and bottom cover 6, ensuring that the entire device can be quickly folded to form a stable lantern.
[0012] In the above technical solution, the elastic column is further described as having a "V" shaped structure.
[0013] In this technical solution, it is ensured that the inserting post, along with the elastic posts on both sides, will not fall out when inserted into the hole.
[0014] In the above technical solution, the elastic column is further located between PVC board one, PVC board two, PVC board three, PVC board four, PVC board five and PVC board six.
[0015] In this technical solution, the cooperation of the round block, the insert post, and the elastic post is ensured to fix the top cover 2, top cover 3, top cover 4, top cover 5, top cover 6, bottom cover 1, bottom cover 2, bottom cover 3, bottom cover 4, bottom cover 5, and bottom cover 6.
[0016] In the above technical solution, the PVC board 1, top cover 1, bottom cover 1, PVC board 2, top cover 2, bottom cover 2, PVC board 3, top cover 3, bottom cover 3, PVC board 4, top cover 4, bottom cover 4, PVC board 5, top cover 5, bottom cover 5, PVC board 6, top cover 6, and bottom cover 6 are integrally formed structures.
[0017] In this technical solution, the overall structural stability of the device is ensured.
[0018] In the above technical solution, furthermore, crease structures are formed between PVC board one and PVC board two, between PVC board two and PVC board three, between PVC board three and PVC board four, between PVC board four and PVC board five, and between PVC board five and PVC board six.
[0019] In this technical solution, PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5 and PVC board 6 can be quickly folded into a hexagonal structure, ensuring that the overall device is easy to fold.
[0020] In the above technical solution, furthermore, the PVC board one and the top cover one and the bottom cover one, the PVC board two and the top cover two and the bottom cover two, the PVC board three and the top cover three and the bottom cover three, the PVC board four and the top cover four and the bottom cover four, the PVC board five and the top cover five and the bottom cover five, and the PVC board six and the top cover six and the bottom cover six all form a crease structure.
[0021] In this technical solution, top cover 2, top cover 3, top cover 4, top cover 5 and top cover 6 can be quickly folded and retracted, and bottom cover 1, bottom cover 2, bottom cover 3, bottom cover 4, bottom cover 5 and bottom cover 6 can be quickly folded and retracted, ensuring that the whole device is easy to fold.
[0022] The beneficial effects of this utility model are: This frameless, multi-light source, foldable polygonal lantern, based on PVC material, comprises six PVC panels: PVC panel 1, top cover 1, bottom cover 1, PVC panel 2, top cover 2, bottom cover 2, PVC panel 3, top cover 3, bottom cover 3, PVC panel 4, top cover 4, bottom cover 4, PVC panel 5, top cover 5, bottom cover 5, PVC panel 6, top cover 6, and bottom cover 6. All are made of multi-colored transparent PVC material. This material selection gives the lantern an overall translucent and crystal-clear texture, breaking away from the dullness of traditional lanterns. Under light, it produces a unique refraction effect, combining the festive atmosphere of classic lanterns with the delicate and fashionable feel of modern design. The inherent plasticity of PVC material allows for the use of various other colors and surface textures to meet different aesthetic needs.
[0023] Secondly, through the above structure, such as Figure 1As shown, the lantern's frame can be designed as a polygonal structure, preferably hexagonal. This geometric shape is not only structurally stable but also more modern in design than the traditional circular shape. Utilizing the flexibility and thermoplasticity of PVC material, the desired three-dimensional polygonal shape can be quickly formed through a folding process, resulting in high production efficiency.
[0024] Through the above structure, such as Figure 2 As shown, the lantern's frame employs a foldable connection structure. When not in use, the lantern can be folded into a flat shape, greatly reducing packaging volume, lowering transportation and storage costs, and minimizing the risk of damage.
[0025] The lantern's interior features flexible space for light source arrangement, ideally using a combination of lamp holders and bulbs. Furthermore, users can select and install different types of light sources, such as LED strips, string lights, or individual LED modules, as needed. The light source can be adjusted via a controller to change its color, brightness, and flashing mode. Installation methods include adhesive, hook-and-loop, or magnetic attachment, allowing for easy adjustment of the light source's position to achieve optimal lighting and visual effects. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the overall structure of this utility model. Figure 3 This is a detailed internal structural diagram of the overall device in this utility model; Figure 4 This is a schematic diagram of the combined structure of the circular block, the insert, and the elastic column in this utility model.
[0027] The markings in the diagram are as follows: 1. PVC board one; 11. Top cover one; 12. Bottom cover one; 2. PVC board two; 21. Top cover two; 22. Bottom cover two; 3. PVC board three; 31. Top cover three; 32. Bottom cover three; 4. PVC board four; 41. Top cover four; 42. Bottom cover four; 5. PVC board five; 51. Top cover five; 52. Bottom cover five; 6. PVC board six; 61. Top cover six; 62. Bottom cover six; 7. Lamp holder; 71. Lamp tube; 8. Round block; 81. Insert post; 82. Flexible post. Detailed Implementation
[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0029] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0030] Example 1: This example provides a frameless, multi-light source combined foldable polygonal lantern based on PVC material, comprising: PVC board 1, PVC board 1 is connected to PVC board 3 via PVC board 2, PVC board 3 is connected to PVC board 5 via PVC board 4, PVC board 6 is provided between PVC board 5 and PVC board 1, PVC board 1 has a top cover 11 and a bottom cover 12 on its upper and lower sides respectively, PVC board 2 has a top cover 21 and a bottom cover 22 on its upper and lower sides respectively, PVC board 3 has a top cover 31 and a bottom cover 32 on its upper and lower sides respectively, and PVC board 4 has a top cover 41 on its upper and lower sides respectively. The PVC board 5 has a top cover 51 and a bottom cover 52 on its upper and lower sides, and the PVC board 6 has a top cover 61 and a bottom cover 62 on its upper and lower sides. A lamp holder 7 is provided between the top cover 21, top cover 31, top cover 41, top cover 51 and top cover 61. A lamp tube 71 is provided at the bottom of the lamp holder 7. The top cover 21, top cover 31, top cover 41, top cover 51, top cover 61, bottom cover 12, bottom cover 22, bottom cover 32, bottom cover 42, bottom cover 52 and bottom cover 62 are all fixed by elastic buckles.
[0031] Among them, PVC board 1, top cover 11, bottom cover 12, PVC board 2, top cover 21, bottom cover 22, PVC board 3, top cover 31, bottom cover 32, PVC board 4, top cover 41, bottom cover 42, PVC board 5, top cover 51, bottom cover 52, PVC board 6, top cover 61, and bottom cover 62 are all made of multi-colored transparent PVC (polyvinyl chloride) material. The choice of this material gives the lantern an overall transparent and crystal-clear texture, breaking the dullness of traditional lanterns. Under light, it can produce a unique refraction effect, combining the festive atmosphere of classic lanterns with the exquisite and fashionable feel of modern design. The plasticity of PVC material itself allows the use of various other colors (such as amber, blue, frosted semi-transparent, etc.) and surface textures (such as glossy and textured surfaces) to meet different aesthetic needs.
[0032] Secondly, through the above structure, such as Figure 1As shown, the lantern's frame can be designed as a polygonal structure, preferably hexagonal (such as a hexagonal prism). This geometric shape is not only structurally stable but also more modern in design than the traditional circular shape. Utilizing the flexibility and thermoplasticity of PVC material, the desired three-dimensional polygonal shape can be quickly formed through a folding process, resulting in high production efficiency.
[0033] Through the above structure, such as Figure 2 As shown, the lantern's frame employs a foldable connection structure. When not in use, the lantern can be folded into a flat shape, greatly reducing packaging volume, lowering transportation and storage costs, and minimizing the risk of damage.
[0034] The lantern's interior features flexible space for light source arrangement, ideally using a combination of lamp holder 7 and lamp tube 71. Furthermore, users can select and install different types of light sources, such as LED strips, string lights, or individual LED modules, as needed. The light source can be adjusted via a controller (such as an RGB controller) to change its color, brightness, and flashing mode. The light source can be installed using adhesive, hook-and-loop, or magnetic methods, allowing for easy adjustment of its position to achieve optimal lighting and visual effects.
[0035] Example 2: This example provides a frameless multi-light source combined foldable polygonal lantern based on PVC material. In addition to the technical solution of the above example, it also has the following technical features: the PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5 and PVC board 6 are all the same size, and the PVC board 1 is a rectangular structure.
[0036] In particular, ensuring the overall structural coordination is crucial to guaranteeing that PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5, and PVC board 6 can form a hexagonal structure.
[0037] It's worth noting that the surfaces of PVC panels 1, 2, 3, 4, 5, and 6 can all be fitted with replaceable pattern modules. This allows users to freely change the patterns on the lantern's surface according to festivals, occasions, or personal preferences, achieving a high degree of personalization.
[0038] Example 3: This example provides a frameless, multi-light source combined foldable polygonal lantern based on PVC material. In addition to the technical solutions of the above examples, it also has the following technical features: the top cover 21, top cover 31, top cover 41, top cover 51 and top cover 61 are of equal size; the bottom cover 12, bottom cover 22, bottom cover 32, bottom cover 42, bottom cover 52 and bottom cover 62 are of equal size; and the bottom cover 12 is an isosceles triangle structure.
[0039] To ensure the overall structural harmony, when PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5, and PVC board 6 form a hexagon, top cover 21, top cover 31, top cover 41, top cover 51, and top cover 61 can be folded and folded together, and bottom cover 12, bottom cover 22, bottom cover 32, bottom cover 42, bottom cover 52, and bottom cover 62 can also be folded and folded together, so that the whole device forms a lantern.
[0040] Example 4: This example provides a frameless, multi-light source combined foldable polygonal lantern based on PVC material. In addition to the technical solutions of the above examples, it also has the following technical features, wherein the elastic buckle includes: A circular block 8, with a pin 81 fixedly installed at its bottom end, and elastic pins 82 fixedly installed on both sides of the pin 81.
[0041] Among them, top cover 21, top cover 31, top cover 41, top cover 51, top cover 61, bottom cover 12, bottom cover 22, bottom cover 32, bottom cover 42, bottom cover 52, and bottom cover 62 all have pre-drilled holes. When using elastic buckles, top cover 21, top cover 31, top cover 41, top cover 51, and top cover 61 can be folded together, and then the elastic posts 82 on both sides of several insert posts 81 can be inserted into the holes between top cover 21 and top cover 31 in sequence. The holes between 1 and top cover 41, between top cover 41 and top cover 51, between top cover 51 and top cover 61, between bottom cover 12 and bottom cover 22, between bottom cover 22 and bottom cover 32, between bottom cover 32 and bottom cover 42, between bottom cover 42 and bottom cover 52, and between bottom cover 52 and bottom cover 62 ensure that the entire device can be quickly folded to form a stable lantern.
[0042] Example 5: This example provides a frameless multi-light source combined with foldable polygonal lantern based on PVC material. In addition to the technical solutions of the above examples, it also has the following technical features: the elastic column 82 has a "V" shaped structure.
[0043] Among them, it is ensured that the insert post 81 drives the elastic posts 82 on both sides to be inserted into the hole without falling off.
[0044] Example 6: This example provides a frameless multi-light source combined with foldable polygonal lantern based on PVC material. In addition to the technical solutions of the above examples, it also has the following technical features: the elastic column 82 is located between PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5 and PVC board 6.
[0045] Among them, the cooperation of the round block 8, the insert post 81 and the elastic post 82 can fix the top cover 21, top cover 31, top cover 41, top cover 51, top cover 61, bottom cover 12, bottom cover 22, bottom cover 32, bottom cover 42, bottom cover 52 and bottom cover 62.
[0046] Example 7: This example provides a frameless, multi-light source combined foldable polygonal lantern based on PVC material. In addition to the technical solutions of the above examples, it also has the following technical features: the PVC board 1, top cover 11, bottom cover 12, PVC board 2, top cover 21, bottom cover 22, PVC board 3, top cover 31, bottom cover 32, PVC board 4, top cover 41, bottom cover 42, PVC board 5, top cover 51, bottom cover 52, PVC board 6, top cover 61, and bottom cover 62 are integrally formed structures.
[0047] Among these measures, ensuring the structural stability of the overall device is crucial.
[0048] Example 8: This example provides a frameless multi-light source combined with foldable polygonal lantern based on PVC material. In addition to the technical solution of the above example, it also has the following technical features: folding structures are formed between PVC board 1 and PVC board 2, between PVC board 2 and PVC board 3, between PVC board 3 and PVC board 4, between PVC board 4 and PVC board 5, and between PVC board 5 and PVC board 6.
[0049] Among them, PVC board 1, PVC board 2, PVC board 3, PVC board 4, PVC board 5, and PVC board 6 can be quickly folded into a hexagonal structure, ensuring that the whole device is easy to fold.
[0050] Example 9: This example provides a frameless, multi-light source combined foldable polygonal lantern based on PVC material. In addition to the technical solutions of the above examples, it also has the following technical features: PVC board 1 and top cover 11 and bottom cover 12, PVC board 2 and top cover 21 and bottom cover 22, PVC board 3 and top cover 31 and bottom cover 32, PVC board 4 and top cover 41 and bottom cover 42, PVC board 5 and top cover 51 and bottom cover 52, and PVC board 6 and top cover 61 and bottom cover 62 all form folded structures.
[0051] Among them, top cover 21, top cover 31, top cover 41, top cover 51 and top cover 61 can be quickly folded and folded, and bottom cover 12, bottom cover 22, bottom cover 32, bottom cover 42, bottom cover 52 and bottom cover 62 can be quickly folded and folded, ensuring that the whole device is easy to fold.
[0052] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A frameless, multi-light source combined foldable polygonal lantern based on PVC material, characterized in that, include: PVC board one (1), PVC board one (1) is connected to PVC board three (3) through PVC board two (2), PVC board three (3) is connected to PVC board five (5) through PVC board four (4), PVC board five (5) is provided between PVC board one (1) and PVC board one (1), PVC board one (11) and PVC board three (12) are respectively provided on the upper and lower sides of PVC board one (1), PVC board two (21) and PVC board two (22) are respectively provided on the upper and lower sides of PVC board two (2), PVC board three (3) is respectively provided on the upper and lower sides of PVC board three (3), PVC board four (41) and PVC board four (42) are respectively provided on the upper and lower sides of PVC board four (4). 42), the PVC board five (5) is provided with a top cover five (51) and a bottom cover five (52) on the upper and lower sides respectively, the PVC board six (6) is provided with a top cover six (61) and a bottom cover six (62) on the upper and lower sides respectively, a lamp holder (7) is provided between the top cover two (21), top cover three (31), top cover four (41), top cover five (51) and top cover six (61), and a lamp tube (71) is provided at the bottom of the lamp holder (7). The top cover two (21), top cover three (31), top cover four (41), top cover five (51), top cover six (61), bottom cover one (12), bottom cover two (22), bottom cover three (32), bottom cover four (42), bottom cover five (52) and bottom cover six (62) are all fixed by elastic buckles.
2. The foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 1, is characterized in that... The PVC board one (1), PVC board two (2), PVC board three (3), PVC board four (4), PVC board five (5) and PVC board six (6) are all the same size, and the PVC board one (1) is a rectangular structure.
3. A foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 1, is characterized in that... The top cover 2 (21), top cover 3 (31), top cover 4 (41), top cover 5 (51) and top cover 6 (61) are all the same size. The bottom cover 1 (12), bottom cover 2 (22), bottom cover 3 (32), bottom cover 4 (42), bottom cover 5 (52) and bottom cover 6 (62) are all the same size. The bottom cover 1 (12) is an isosceles triangle structure.
4. A foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 1, is characterized in that... The elastic buckle includes: A circular block (8) is fixedly installed with a post (81) at its bottom end, and elastic posts (82) are fixedly installed on both sides of the post (81).
5. A foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 4, is characterized in that... The elastic column (82) has a "V" shaped structure.
6. A foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 5, is characterized in that... The elastic column (82) is located between PVC board one (1), PVC board two (2), PVC board three (3), PVC board four (4), PVC board five (5) and PVC board six (6).
7. A foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 1, is characterized in that... The PVC board 1 (1), top cover 1 (11), bottom cover 1 (12), PVC board 2 (2), top cover 2 (21), bottom cover 2 (22), PVC board 3 (3), top cover 3 (31), bottom cover 3 (32), PVC board 4 (4), top cover 4 (41), bottom cover 4 (42), PVC board 5 (5), top cover 5 (51), bottom cover 5 (52), PVC board 6 (6), top cover 6 (61), and bottom cover 6 (62) are integrally formed structures.
8. A foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 1, is characterized in that... The PVC board 1 (1) and PVC board 2 (2), PVC board 2 (2) and PVC board 3 (3), PVC board 3 (3) and PVC board 4 (4), PVC board 4 (4) and PVC board 5 (5), and PVC board 5 (5) and PVC board 6 (6) all form crease structures.
9. A foldable polygonal lantern based on PVC material with a frameless design and multiple light sources, as described in claim 1, is characterized in that... The PVC board 1 (1) and top cover 1 (11) and bottom cover 1 (12), the PVC board 2 (2) and top cover 2 (21) and bottom cover 2 (22), the PVC board 3 (3) and top cover 3 (31) and bottom cover 3 (32), the PVC board 4 (4) and top cover 4 (41) and bottom cover 4 (42), the PVC board 5 (5) and top cover 5 (51) and bottom cover 5 (52), and the PVC board 6 (6) and top cover 6 (61) and bottom cover 6 (62) all form crease structures.