Inward-wrapped 3D printed saddle
By using reverse-wrapping 3D printing technology, the pad body and base are designed with limiting grooves and buckles, which solves the problem of delamination after long-term use of bicycle saddles, and achieves a stable connection, improved breathability and comfort.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- DONGGUAN WUJIE 3D PRINTING TECHNOLOGY SERVICE CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-21
AI Technical Summary
Traditional bicycle saddles tend to separate from the base after prolonged use, affecting breathability and comfort.
Using reverse-wrapping 3D printing technology, the pad body and the base are stably connected through a limiting groove and buckle structure design. The top and perimeter of the pad body are hollowed out to improve breathability and comfort.
It achieves a stable connection between the pad and the base, avoids delamination, maintains breathability and comfort, and has an aesthetically pleasing appearance without any manufacturing gaps.
Smart Images

Figure CN2025096167_21052026_PF_FP_ABST
Abstract
Description
Reverse-wrap 3D printed seat cushion Technical Field
[0001] This utility model relates to the field of bicycle seat technology, and in particular to a reverse-wrapped 3D printed seat. Background Technology
[0002] Bicycles, as a low-carbon and environmentally friendly mode of transportation, are increasingly used for commuting, with more and more people choosing them for travel and exercise. For long rides, the breathability and comfort of the saddle are particularly important. To address this, 3D-printed saddles with a perforated structure have emerged on the market. These saddles typically consist of a seat arch, a base, and a 3D-printed pad. The seat arch is mounted on the bicycle, the base is placed on the seat arch, and the pad is glued to the base. However, traditionally, the pad is directly glued to the top surface of the base, leading to delamination between the base and the pad after prolonged use. Utility Model Content
[0003] Therefore, it is necessary to provide a reverse-wrapping 3D printed cushion to address the shortcomings of existing technologies.
[0004] A reverse-wrapping 3D-printed seat cushion includes a cushion body, a base, and a seat arch. The seat arch is disposed on the bottom surface of the base. The cushion body is a 3D-printed integral structure, including a base plate, a hollow portion disposed on the base plate, and an edge portion disposed at the bottom of the base plate. A limiting groove with an opening facing the center is formed between the edge portion and the base plate. The outer edge of the base is embedded in the limiting groove.
[0005] Furthermore, the size of the base plate is larger than that of the base, and the outer surface of the edging portion extends inclined from the outside to the inside towards the bottom surface of the base.
[0006] Furthermore, the outer periphery of the base plate has an annular flange protruding from the bottom, and the edging portion is located inside the flange.
[0007] Furthermore, a protrusion is provided on the outermost edge of the bottom surface of the base, and the edge of the base is engaged into the limiting groove, and the annular protrusion and the edging portion form a snap-fit structure.
[0008] Furthermore, the seat bow is mounted on the base via an mounting component, and the mounting part has a limiting step on one side of the edging part, with the bottom surface of the limiting step pressing against the top surface of the edging part.
[0009] Furthermore, the interior, top surface, and outer perimeter of the hollowed-out portion are all hollowed out, and it is composed of multiple support strips.
[0010] Furthermore, the support strips on the inner side of the hollowed-out portion are cylindrical, and the top surface of the support strips on the outermost surface of the hollowed-out portion is a flat plane.
[0011] Furthermore, the mounting component includes a first mounting component and a second mounting component, which are respectively disposed at the front and rear ends of the seat bow.
[0012] Furthermore, the first mounting member has a mounting groove on its inner side, into which the seat bow is embedded; the second mounting member is arched, and the second mounting member presses and confines the seat bow on the base.
[0013] In summary, the cushion body of this utility model adopts a 3D printed structure. The top and perimeter of the cushion body are hollowed out, which not only facilitates processing and uses less material, but also provides good breathability and comfort. The edging structure makes the installation between the cushion body and the base more stable; and the appearance is more aesthetically pleasing with no manufacturing gaps. This utility model is highly practical and has significant potential for widespread application. Attached Figure Description
[0014] Figure 1 is a structural schematic diagram of the reverse-wrapped 3D printed seat cushion of this utility model;
[0015] Figure 2 is a schematic diagram of the back structure of the seat cushion in Figure 1;
[0016] Figure 3 is a partial enlarged schematic diagram of the structure in Figure 2;
[0017] Figure 4 is a partial structural diagram of the base plate, the edge banding, and the base in the second embodiment of this utility model;
[0018] Figure 5 is a partial structural diagram of the first mounting component, base, and edging portion in the third embodiment of this utility model;
[0019] Figure 6 is a partial structural diagram of the second mounting component, base, and edging portion in the third embodiment of this utility model. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0021] As shown in Figures 1 to 3, this utility model provides a reverse-wrapping 3D-printed cushion, wherein a through hole 100 is provided in the middle of the reverse-wrapping 3D-printed cushion. The reverse-wrapping 3D-printed cushion includes a cushion body 10, a base 20, and a seat arch 30. The seat arch 30 is disposed on the bottom surface of the base 20, and the cushion body 10 covers the top surface of the base 20, with the outer edge of the cushion body 10 wrapping downwards around the edge of the base 20 within the cushion body 10. The through hole 100 penetrates through the cushion body 10 and the base 20. In this embodiment, the cushion body 10 is 3D printed.
[0022] The pad 10 includes a base plate 11, a hollow portion 12, and an edge portion 13. The hollow portion 12 is disposed above the base plate 11, and the hollow portion 12 has the same shape as the base plate 11. The hollow portion 12 is an integral hollow structure, which is composed of multiple support strips 121. Multiple adjacent support strips 121, arranged vertically and horizontally, enclose multiple polygonal hollow holes. In this embodiment, the support strips 121 on the inner side of the hollow portion 12 are cylindrical, while the outermost support strip 121 has a flat surface. This makes the outer surface of the pad 10 smooth and flat, improving comfort during use.
[0023] The edging portion 13 is disposed on the outermost edge of the base plate 11. The edging portion 13 is annularly arranged, forming an annular limiting groove 131 between it and the bottom surface of the base plate 11. The outer edge of the base 20 is embedded in the limiting groove 131. Further, the size of the base plate 11 is larger than that of the base 20, and a flange 111 is formed at the bottom along the outer periphery of the base plate 11. The outer surface of the edging portion 13 extends inclined downwards towards the base 20 from the outside to the inside. This creates an inwardly interlocking structure between the limiting groove 131 and the edging portion 13, which further improves the stability of the edging portion 13 in limiting the base 20, thus preventing the edging portion 13 from turning outwards and delaminating from the base 20. Even if delamination occurs between the edging portion 13 and the base 20, its opening is still inside the lower part of the base 20. After repair, it will not affect the aesthetic appearance or the comfort of use.
[0024] The seat bow 30 is mounted on the base 20 by a first mounting member 41 and a second mounting member 42. In this embodiment, the first mounting member 41 and the second mounting member 42 are respectively disposed at the front and rear ends of the seat bow. Specifically, a mounting groove is provided on the inner side of the first mounting member 41, and the seat bow 30 is embedded in the mounting groove. The second mounting member 42 is arched and presses and confines the seat bow on the base 20. The first mounting member 41 and the second mounting member 42 can be fixed by screws or adhesive.
[0025] As shown in Figure 4, this is the second embodiment of the present invention. The structure of this embodiment is basically the same as that of the first embodiment, except that: an annular protrusion 21 is provided on the outermost edge of the base 20. During installation, the edge of the base 20 is inserted into the limiting groove 131, and the annular protrusion and the edging portion 13 form a snap-fit structure, thereby further improving the stability of the installation. After installation, the edging portion 13 and the bottom surface of the base 20 are further bonded together with an adhesive layer.
[0026] As shown in Figures 5 and 6, this is the third embodiment of the present invention. The structure of this embodiment is basically the same as that of the first embodiment, except that a first limiting step 411 is provided on the outer edge of the first mounting member 41, and a second limiting step 422 is provided on both the inner and outer sides of the second mounting member 42. The bottom surfaces of the first limiting step 411 and the second limiting step 422 are pressed onto the top surface of the edging part 13, thereby further limiting the edging part 13.
[0027] In summary, the cushion body 10 of this utility model adopts a 3D printed structure. The top and perimeter of the cushion body 10 are hollowed out, which not only facilitates processing and uses less material, but also provides good breathability and comfort. The edging structure makes the installation between the cushion body 10 and the base 20 more stable; and the appearance is more aesthetically pleasing with no manufacturing gaps. This utility model is highly practical and has significant potential for widespread application.
[0028] The above-described embodiments only illustrate three implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A reverse bag 3D printed cushion, characterized in that: The device includes a pad, a base, and a seat arch. The seat arch is disposed on the bottom surface of the base. The pad is a 3D printed integral structure, which includes a base plate, a hollow part disposed on the base plate, and an edge part disposed at the bottom of the base plate. A limiting groove with an opening facing the center is formed between the edge part and the base plate. The outer edge of the base is embedded in the limiting groove.
2. A reverse bagged 3D printed cushion as claimed in claim 1, wherein: The base plate is larger than the base, and the outer surface of the edging portion extends inclined from the outside to the inside towards the bottom surface of the base.
3. A reverse bagged 3D printed cushion as claimed in claim 2, wherein: The outer periphery of the base plate has an annular flange protruding from the bottom, and the edging portion is located on the inner side of the flange.
4. The reverse bagged 3D printed cushion of claim 1, wherein: A protrusion is provided on the outermost edge of the bottom surface of the base, and the edge of the base is inserted into the limiting groove. The annular protrusion and the edging part form a snap-fit structure.
5. A reverse bagged 3D printed cushion as claimed in claim 1, wherein: The seat bow is mounted on the base by a mounting component. The mounting part has a limiting step on one side of the edging part, and the bottom surface of the limiting step is pressed against the top surface of the edging part.
6. A reverse bagged 3D printed cushion as claimed in claim 1, wherein: The hollowed-out section has a hollowed-out interior, top surface, and outer perimeter, and is composed of multiple support strips.
7. A reverse bagged 3D printed cushion as claimed in claim 1, wherein: The support strips on the inner side of the hollowed-out section are cylindrical, while the top surface of the support strips on the outermost surface of the hollowed-out section is a flat plane.
8. A reverse bagged 3D printed cushion as claimed in claim 5, wherein: The mounting components include a first mounting component and a second mounting component, which are respectively disposed at the front and rear ends of the seat bow.
9. A reverse bagged 3D printed cushion as claimed in claim 8, wherein: The first mounting member has a mounting groove on its inner side, and the seat bow is embedded in the mounting groove; the second mounting member is arched and presses the seat bow onto the base.