Composite independent cylinder and application thereof

Abstract

A plurality of combined type independent cylinders can be installed in a cushion body side by side, and each combined type independent cylinder is composed of a first compression spring and a second compression spring. The first compression spring is provided with a top part, a bottom part, a cylinder body connected between the top part and the bottom part, an air chamber formed in the cylinder body, and a connecting part arranged at the bottom part, and is used for controlling the cylinder body to elastically deform when the top part is stressed. The second compression spring is oppositely provided with a top edge and a bottom edge, the top edge is installed on the connecting part so that the first compression spring and the second compression spring can be stressed together, the restoring force of the second compression spring can be controlled to be larger than that of the first compression spring, and therefore the first compression spring can relatively weaken aftershock of the second compression spring. Therefore, the pad body applying the composite independent cylinder has comfort and restorability.

Description

Technical Field

[0001] This invention relates to the field of spring technology, and in particular to a composite independent spring that combines comfort and resilience, and its applications. Background Technology

[0002] Nowadays, high-end mattresses, pillows, cushions, and other supportive pads mostly have several independent tubes installed side by side inside to cushion changes in the body's curves.

[0003] According to the traditional independent cylinder, it can be mainly divided into two types: pneumatic independent cylinder and spring independent cylinder.

[0004] Generally speaking, pneumatic independent cylinders do have the advantage of better comfort when used in pads, but they have the disadvantage of slightly insufficient resilience.

[0005] As for the spring-type independent coil, it is mainly composed of a cloth sleeve covering the outer periphery of a coil spring. These coil springs are mostly made of spring steel, and their application in cushioning has the advantage of good resilience, but it has the disadvantage of slightly insufficient comfort. Specifically: 1. When the coil spring is subjected to force, it will produce aftershocks due to its good restoring force. The greater the restoring force, the greater the unnecessary aftershocks will be, causing excessive swaying when the user is sitting or lying down. For most users, this is hardly comfortable and there is definitely room for improvement.

[0006] Second, when the above-mentioned pad is rolled up to cope with handling or subjected to improper force, the top of the coiled spring may break and puncture the cloth cover. This may cause discomfort to the user or even injury to the user, making it difficult to say that it is safe.

[0007] In view of the above problems, the inventors have carefully studied and improved the invention, and finally developed the present invention to integrate the advantages of pneumatic independent cylinders and spring independent cylinders, so that it has both comfort and resilience, and provides users with another consumer option. Summary of the Invention

[0008] The purpose of this invention is to provide a composite independent cylinder that combines comfort and resilience, and its application, thereby improving the shortcomings of insufficient resilience in pneumatic independent cylinders and insufficient comfort in spring-type independent cylinders.

[0009] To achieve the above objectives, the composite independent cylinder of the present invention includes at least: A first compression spring has a top, a bottom, a cylinder connecting the top and the bottom, an air chamber formed inside the cylinder, and a connecting portion provided at the bottom. When the top is subjected to force, the cylinder can elastically deform. A second compression spring has a top edge and a bottom edge. The top edge is installed on the connecting part so that the second compression spring and the first compression spring can be subjected to force together, and the restoring force of the second compression spring is greater than that of the first compression spring.

[0010] Furthermore, the connecting portion extends downward from the bottom to form a downward-facing countersunk hole, the diameter of which is sufficient to accommodate the top edge of the second compression spring, which is a helical spring.

[0011] Furthermore, the first compression spring has a strain zone formed in the cylinder and a through hole connecting the inside and outside of the air chamber.

[0012] Furthermore, the strain zone is formed by creating wrinkled corrugations in the area where the cylinder body is located.

[0013] Furthermore, a flow valve is installed in the through-hole.

[0014] Furthermore, multiple second compression springs are installed together at the connecting part, such that the second compression springs are installed side by side and symmetrically below the first compression spring.

[0015] Furthermore, a third compression spring is further installed on the bottom edge of the second compression spring, so that the second compression spring, the first compression spring and the third compression spring can be subjected to force coaxially.

[0016] Furthermore, the second compression spring is a spring with a greater restoring force than the first compression spring, and the spring includes: a gas spring and a corrugated spring.

[0017] An application of a composite independent cylinder according to the present invention includes a composite independent cylinder and an outer layer unit for mounting the composite independent cylinder.

[0018] Furthermore, the outer unit is composed of a top pad, a bottom pad, and an outer jacket; the top surface of the bottom pad has a matching number of composite independent cylinders arranged side by side, the top pad is laid on the top of the composite independent cylinders, and the outer jacket is sewn to the outer periphery of the top pad and the bottom pad.

[0019] By adopting the above technical solution, the present invention has at least the following technical effects: 1. When the composite independent cylinder is subjected to force, the first compression spring can relatively reduce the residual vibration of the second compression spring, thereby enabling the composite independent cylinder to substantially improve comfort and resilience when used in a cushion that can support the human body.

[0020] 2. Further defining the connecting part as extending downward from the bottom to form a countersunk hole with the opening facing downward, the diameter of the countersunk hole is sufficient to provide mounting for the top edge of the second compression spring, thereby forming a protective cover on the outer periphery of the top edge of the second compression spring by the connecting part, which can reduce the occurrence of the situation mentioned in the background art where the top of the coiled spring is pierced (i.e., the top edge of the second compression spring), thereby improving the overall safety.

[0021] 3. The total free height of the composite independent cylinder of the present invention is composed of a first compression spring and a second compression spring. Therefore, the height of the first compression spring and the second compression spring will be less than the free height of the traditional coil spring. This makes the second compression spring of the present invention lighter than the traditional coil spring. By relatively reducing the weight of the second compression spring, the residual vibration can be further reduced, thereby reducing the shaking of the pad after the force is applied, and further improving the comfort of the pad when sitting or lying down. Attached Figure Description

[0022] Figure 1 This is a three-dimensional exploded view of the composite independent cylinder of the present invention.

[0023] Figure 2 yes Figure 1 A schematic diagram of the combined appearance.

[0024] Figure 3 yes Figure 1 A combined cross-sectional schematic diagram.

[0025] Figure 4 This is a schematic diagram illustrating the installation of the composite independent cylinder of the present invention on the pad.

[0026] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0027] Figure 6 This is a schematic diagram of the second embodiment of the composite independent cylinder of the present invention.

[0028] Figure 7 This is a schematic diagram of the third embodiment of the composite independent cylinder of the present invention.

[0029] Figure 8 This is a schematic diagram of the fourth embodiment of the composite independent cylinder of the present invention.

[0030] Reference numerals: A. Pad; B. Composite independent cylinder; 10. First compression spring; 10A. First compression spring; 10B. First compression spring; 10C. Third compression spring; 100. Air chamber; 11. Top; 12. Bottom; 13. Cylinder body; 131. Strain zone; 14. Through hole; 141. Flow valve; 15. Connecting part; 151. Countersunk hole; 152. Clamping edge; 20. Second compression spring; 30. Outer unit; 31. Top pad; 32. Bottom pad; 33. Outer jacket. Detailed Implementation

[0031] The “cushion” shown in the following implementation diagram can be replaced by mattresses, pillows, cushions, or other cushions that provide support for the human body.

[0032] To fully understand the purpose, features, and effects of this invention, the following specific embodiments, in conjunction with the accompanying drawings, will provide a detailed description of the invention. Please refer to them. Figures 1 to 5 The pad A of the present invention is composed of several parallel composite independent cylinders B and an outer layer unit 30 for mounting the composite independent cylinders B; the composite independent cylinders B are composed of a first compression spring 10 and a second compression spring 20, and the second compression spring 20 is further controlled to be coaxially connected and installed below the first compression spring 10; wherein: The aforementioned first compression spring 10 has a top 11, a bottom 12, a cylinder 13 connected between the top 11 and the bottom 12, a strain zone 131 formed in the cylinder 13, an air chamber 100 correspondingly formed inside the cylinder 13, a through hole 14 connecting the inside and outside of the air chamber 100, and a connecting part 15 provided at the bottom 12. The air chamber 100 contains air, which is used to control the top 11 to be under force, so that the cylinder 13 can elastically deform to cope with the deformation of the strain zone 131, and at the same time promote the air outlet 14 to exhaust. However, when the stressed state is released, the air chamber 100 can provide a restoring force through negative pressure, and at the same time promote the air outlet 14 to enter. The aforementioned strain zone 131 is formed by molding a corrugated tube in the area where the cylinder body 13 is located, so that it can cope with the compression or expansion of the air chamber 100; furthermore, the aforementioned through hole 14 penetrates through the top 11, and it can also be set at the bottom 12, as long as it does not affect the air intake or exhaust design when installed on the pad body A. The through hole 14 can be equipped with a manual or electric flow valve 141. The flow valve 141 controls the efficiency of air intake and exhaust in the air chamber 100 by controlling the gas flow rate, thereby controlling the restoring force and buffering force of the first compression spring 10, so that the restoring force and buffering force of the first compression spring 10 can be manually or automatically adjusted according to customization or user requirements; In other embodiments of the present invention, since the gas is compressible, it is not necessary to provide a through hole 14 for the gas to enter and exit. Without the through hole 14, the first compression spring 10 can obtain the same effect as in this embodiment simply by having the elasticity to deform. Specifically, without the through hole 14, the first compression spring 10 is made of a resilient and malleable material (e.g., rubber) so that when the user applies pressure from above while sitting or lying down, the pressure is first cushioned by the air chamber 100 of the first compression spring 10 and the air inside the air chamber 100, and then by the second compression spring 20. Thus, the first compression spring 10 is closer to the user than the second compression spring 20, and the first compression spring 10 and the air inside the air chamber 100 are sufficient to provide the user with a better sense of comfort. Finally, the aforementioned connecting part 15 provides a second compression spring 20 to be coaxially connected in series. The connecting part 15 extends downward along the periphery of the bottom 12 to form a downward-facing countersunk hole 151, and a retaining flange 152 protrudes from the wall of the countersunk hole 151. As shown in the diagram, the second compression spring 20 is a helical spring. The present invention further controls the restoring force of the second compression spring 20 to be greater than that of the first compression spring 10. The second compression spring 20 has opposing top and bottom edges along its axial direction, allowing the top edge of the second compression spring 20 to be inserted from bottom to top into the countersunk hole 151 of the connecting part 15 and positioned by the retaining edge 152. This allows the second compression spring 20 and the first compression spring 10 to be coaxially connected in series to form a modular composite independent cylinder B, facilitating quick installation into a predetermined position inside the pad body A. The second compression spring 20 and the first compression spring 10 of the composite independent cylinder B are compressed and buffered from top to bottom. When the second compression spring 20 experiences residual vibration due to its restoring force after being compressed, the first compression spring... The restoring force of the first compression spring 10 is less than that of the second compression spring 20. Therefore, the first compression spring 10 can apply a damping effect to the second compression spring 20. Thus, the first compression spring 10 can effectively reduce the aftershocks caused by the excessive restoring force of the second compression spring 20. It should be noted that the helical spring disclosed in the second compression spring 20 can be made of any material such as spring steel, composite material, or plastic material. It is only necessary to control that the restoring force of the second compression spring 20 is greater than that of the first compression spring 10. Furthermore, the second compression spring 20 can also be a gas spring, a corrugated spring, or other different types of springs with a greater restoring force than the first compression spring 10. Therefore, controlling that the restoring force of the second compression spring 20 is greater than that of the first compression spring 10 is a technical feature of this invention. The aforementioned outer unit 30 is composed of a top pad 31, a bottom pad 32, and an outer sleeve 33. The top pad 31 and the bottom pad 32 are approximately the same size as the pad body A. Then, a matching number of composite independent cylinders B are arranged side by side on the top surface of the bottom pad 32. The bottom end of the second compression spring 20 is fixed to the top surface of the bottom pad 32. Next, the top pad 31 is laid on the top 11 of the composite independent cylinders B. Finally, the outer sleeve 33 is sewn around the pad body A to form a structure as described above. Figure 4 and Figure 5 The finished pad A shown in the figure has a gap between the outer jacket 33 and the adjacent composite independent cylinder B. This gap can be filled with filler (not shown) to further fix the composite independent cylinder B.

[0033] This invention has at least the following advantages: (a) The present invention uses the second compression spring 20 to provide the main restoring force of the composite independent cylinder B. Since the restoring force of the first compression spring 10 is less than that of the second compression spring 20, the first compression spring 10 has excellent shock absorption comfort. Therefore, when the pad A is subjected to a downward force, the first compression spring 10 can relatively reduce the residual shock generated by the second compression spring 20 due to its larger restoring force, so that the residual shock swaying when the user sits or lies on the pad A is minimized, thereby taking into account both comfort and restoring performance. (ii) Regarding the same specification of pad A, the total free height of the composite independent cylinder B of the present invention is equivalent to the free height of the traditional coil spring. The total free height of the composite independent cylinder B is formed by adding the free heights of the first compression spring 10 and the second compression spring 20 and subtracting the height of the overlapping part of the first compression spring 10 and the second compression spring 20. Therefore, the free height of the second compression spring 20 of the present invention must be less than the free height of the traditional coil spring. This makes the second compression spring 20 of the present invention lighter than the traditional coil spring, so as to control the restoring force of the second compression spring 20 to be relatively smaller than that of the traditional coil spring. Therefore, it can further improve the residual vibration of the traditional coil spring, thereby reducing the shaking of the pad A after being subjected to force, and further improving the comfort of the pad A when sitting or lying down. (III) In this invention, the connecting portion 15 of the first compression spring 10 is wrapped around the outer periphery of the top edge of the second compression spring 20 to form a protective cover on the outer periphery of the top edge of the second compression spring 20. The first compression spring 10 can be made of elastic materials such as plastic. The connecting portion 15 is integrally molded with the first compression spring 10. Therefore, its structural strength is much greater than that of the cloth sleeve on the outer periphery of a traditional coiled spring. In comparison, the probability of the connecting portion 15 of this invention being punctured by the top edge of the second compression spring 20 is lower than the probability of the cloth sleeve on the outer periphery of a traditional coiled spring being punctured by the top edge of the second compression spring 20. Therefore, this invention has a substantial improvement in safety.

[0034] Please refer to Figure 6 and Figure 7These are the second and third embodiments of the composite independent cylinder B of the present invention, mainly illustrating that multiple second compression springs 20 can be installed in parallel on the connecting part 15. The second compression springs 20 are installed side by side and symmetrically below the first compression springs 10A and 10B. Specifically, Figure 6 shows two second compression springs 20 symmetrically connected in parallel on the connecting part 15 below a first compression spring 10A. Figure 7 This reveals that four second compression springs 20 are symmetrically connected in parallel with the connecting part 15 below another first compression spring 10B. Figure 6 and Figure 7 The first compression springs 10A and 10B can be elliptical, square, or other geometric shapes, as long as the second compression spring 20 can symmetrically bear the force transmitted by the first compression springs 10A and 10B.

[0035] Please refer to Figure 8 This is the fourth embodiment of the composite independent cylinder B of the present invention. It further defines that a third compression spring 10C is additionally installed on the bottom edge of the second compression spring 20 so that the second compression spring 20, the first compression spring 10 and the third compression spring 10C can be connected in series on the same axis to bear force. The structure of the third compression spring 10C is the same as that of the first compression spring 10 and symmetrical. Therefore, the first compression spring 10 and the third compression spring 10C can simultaneously reduce the aftershock of the second compression spring 20.

[0036] In summary, the overall structural features of this invention effectively improve upon the insufficient restoring power of traditional pneumatic independent cylinders and overcome the insufficient comfort of traditional spring-loaded independent cylinders. However, the above description is merely a preferred embodiment of this invention and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention are within the scope of this invention.

Claims

1. A composite free barrel, characterized by, At least comprising: A first compression spring, having a top, a bottom, a barrel connecting the top and the bottom, an air chamber formed inside the barrel, a connecting portion provided at the bottom, the top is capable of elastic deformation when under stress, and the barrel is capable of elastic deformation when under stress; A second compression spring, having a top edge and a bottom edge, the top edge is installed at the connecting portion so that the second compression spring and the first compression spring can be stressed together, and the restoring force of the second compression spring is greater than the restoring force of the first compression spring.

2. The composite free barrel according to claim 1, characterized in that The connecting portion is downwardly extended from the bottom to form a downwardly open counterbore, the diameter of the counterbore is sufficient to provide the installation of the top edge of the second compression spring, and the second compression spring is a coil spring.

3. The composite free barrel of claim 1, wherein, The first compression spring has a strain area formed in the barrel and a through hole communicating inside and outside the air chamber.

4. The composite free barrel according to claim 3, characterized in that The strain area is formed with corrugated waves in the area where the barrel is located.

5. The composite free barrel of claim 3, wherein The through hole is installed with a flow valve.

6. The composite free barrel according to claim 1 or 2 or 3 or 4 or 5, characterized in that, The second compression spring is installed together with multiple second compression springs under the connecting portion, so that the second compression springs are installed side by side and symmetrically under the first compression spring.

7. The composite free barrel according to claim 1 or 2 or 3 or 4 or 5, characterized in that, The bottom edge of the second compression spring is further installed with a third compression spring, so that the second compression spring, the first compression spring and the third compression spring can be stressed coaxially.

8. The composite free barrel according to claim 1 or 2 or 3 or 4 or 5, characterized in that, The second compression spring is a spring with greater restoring force than the first compression spring, and the spring includes: air pressure spring, corrugated spring.

9. Use of a composite free barrel according to any one of claims 1 to 8, characterized in that, It comprises a composite independent barrel and an outer unit for installing the composite independent barrel.

10. The mattress having a composite independent barrel according to claim 9, characterized in that, The outer unit is composed of a top pad, a bottom pad and an outer sleeve; the top surface of the bottom pad is provided with a number of composite independent barrels matched in parallel, the top pad is laid on the top of the composite independent barrel, and the outer sleeve is sewn on the outer periphery of the top pad and the bottom pad.

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