Composite independent cylinder and pad body applied by same

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] The utility model relates to the technical field of springs, and in particular provides a composite independent tube with both comfort and restorability and a cushion body used therein. Background Art

[0002] Today's high-end mattresses, pillows, seat cushions, etc. are cushions that can support the human body. Most of them have several independent cylinders installed side by side inside to elastically respond to changes in the curves of the human body and provide cushioning.

[0003] Traditional independent cylinders can be mainly divided into two types: pneumatic independent cylinders and spring independent cylinders.

[0004] Generally speaking, the use of pneumatic independent cylinders in cushions does have the advantage of better comfort, but has the disadvantage of slightly insufficient recovery.

[0005] As for the spring-type independent cylinder, it is mainly composed of a cloth cover on the outer periphery of the coil spring. The coil spring is mostly made of spring steel. Its application in the cushion body has the advantage of better recovery, but it has the disadvantage of slightly insufficient comfort. Specifically:

[0006] First, the coil spring will produce aftershocks due to its better restoring force after being stressed. When the restoring force is greater, the unnecessary aftershocks will increase proportionally, causing the user to shake unnecessarily when sitting or lying down. For most users, this lacks comfort and there is indeed room for further improvement.

[0007] Second, when the cushion body is rolled up for transportation or subjected to improper external force, the top of the coil spring may break and pierce the cloth cover, causing discomfort to the user at the least and injury to the user at the worst, which is not safe.

[0008] In view of the above problems, the inventor has carefully studied and improved, and finally developed the utility model to integrate the advantages of pneumatic independent cylinder and spring independent cylinder, so that it has both comfort and recovery, so as to provide users with another consumption choice. Utility Model Content

[0009] The purpose of the utility model is to provide a composite independent cylinder with both comfort and recovery and a cushion body used therein, so as to improve the shortcomings of the above-mentioned pneumatic independent cylinder with insufficient recovery and the spring independent cylinder with insufficient comfort.

[0010] To achieve the above-mentioned purpose, the composite independent cylinder of the utility model at least comprises:

[0011] A first compression spring, comprising a top, a bottom, a barrel connected between the top and the bottom, an air chamber formed inside the barrel, and a connecting portion arranged at the bottom, wherein the barrel can be elastically deformed when the top is subjected to force;

[0012] A second compression spring has a top edge and a bottom edge. The top edge is installed on 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.

[0013] Furthermore, the connecting portion extends downward from the bottom to form a countersunk hole with an opening facing downward, and the hole diameter of the countersunk hole is sufficient to provide installation for the top edge of the second compression spring, and the second compression spring is a coil spring.

[0014] Furthermore, the first compression spring has a strain zone formed on the barrel and a through hole communicating with the inside and outside of the air chamber.

[0015] Furthermore, the strain zone is formed into wrinkle-like corrugations in the area where the barrel is located.

[0016] Furthermore, the through hole is equipped with a flow valve.

[0017] Furthermore, the second compression springs are installed together on the connecting portion in plurality, so that the second compression springs are installed side by side and symmetrically below the first compression spring.

[0018] Furthermore, a third compression spring is 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 coaxially stressed.

[0019] Furthermore, the second compression spring is a spring with a greater restoring force than the first compression spring, and the spring includes: a gas pressure spring and a corrugated spring.

[0020] The utility model discloses a cushion body, which comprises a composite independent tube and an outer layer unit for installing the composite independent tube.

[0021] Furthermore, the outer layer unit is composed of a top pad, a bottom pad and an outer cover; a matching number of composite independent tubes are arranged side by side on the top surface of the bottom pad, the top pad is laid on the top of the composite independent tubes, and the outer cover is sewn to the outer periphery of the top pad and the bottom pad.

[0022] By adopting the above technical solution, the utility model has at least the following technical effects:

[0023] 1. After the composite independent cylinder is subjected to force, the first compression spring can relatively weaken the aftershock of the second compression spring, thereby enabling the composite independent cylinder to substantially improve comfort and recovery when used in a cushion body that can support a human body.

[0024] 2. It is further defined that the connecting portion extends downward from the bottom to form a countersunk hole with an opening facing downward, and the aperture of the countersunk hole is sufficient to provide the top edge of the second compression spring for installation. Thereby, the connecting portion forms a protective cover on the periphery of the top edge of the second compression spring, which can reduce the occurrence of the top end of the coil spring mentioned in the background technology (i.e., the top edge of the second compression spring) being pierced, thereby improving the overall safety.

[0025] 3. The total free height of the composite independent cylinder of the utility model is composed of the first compression spring and the second compression spring. Therefore, the heights of the first compression spring and the second compression spring are both smaller than the free height of the traditional coil spring, thereby making the second compression spring of the utility model more lightweight than the traditional coil spring. The aftershock of the second compression spring can be further reduced by relatively reducing the mass of the second compression spring, thereby reducing the shaking of the cushion body after being subjected to force, and further improving the comfort of the cushion body when sitting or lying. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional exploded schematic diagram of the composite independent cylinder of the utility model.

[0027] Figure 2 yes Figure 1 Schematic diagram of the combined appearance.

[0028] Figure 3 yes Figure 1 Schematic diagram of the combined cross-section.

[0029] Figure 4 It is a schematic diagram of the implementation of the composite independent cylinder of the utility model being installed on the cushion body.

[0030] Figure 5 yes Figure 4 A partial enlarged schematic diagram of .

[0031] Figure 6 It is a schematic diagram of a second embodiment of the composite independent cylinder of the utility model.

[0032] Figure 7 It is a schematic diagram of a third embodiment of the composite independent cylinder of the utility model.

[0033] Figure 8 It is a schematic diagram of a fourth embodiment of the composite independent cylinder of the utility model.

[0034] Explanation of the accompanying drawings: A pad body; 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 area; 14 through hole; 141 flow valve; 15 connecting part; 151 countersunk hole; 152 card edge; 20 second compression spring; 30 outer layer unit; 31 top pad; 32 bottom pad; 33 outer jacket. DETAILED DESCRIPTION

[0035] The "cushion body" shown in the following implementation diagrams can be replaced by a mattress, a pillow, a seat cushion, and the like. Any cushion body that has the function of supporting the human body can be included.

[0036] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail by referring to the following specific embodiments and the accompanying drawings. Figures 1 to 5 The cushion body A of the utility model is composed of a plurality of parallel composite independent cylinders B and an outer layer unit 30 for installing the composite independent cylinder B; the composite independent cylinder B is 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 installed in series below the first compression spring 10; wherein:

[0037] The first compression spring 10 comprises a top 11, a bottom 12, a barrel 13 connected between the top 11 and the bottom 12, a strain zone 131 formed in the barrel 13, an air chamber 100 correspondingly formed inside the barrel 13, a through hole 14 communicating with the inside and outside of the air chamber 100, and a connecting portion 15 provided at the bottom 12. The air chamber 100 has air inside, so as to control the top 11 to be elastically deformed when it is stressed, so as to respond with the deformation of the strain zone 131 and to actuate the through hole 14 to exhaust air. However, when the stressed state is released, the air chamber 100 can provide a restoring force through negative pressure and actuate the through hole 14 to intake air. The strain zone 131 is formed by forming a corrugated bellows in the area where the barrel 13 is located, so that it is sufficient to cope with the compression or extension of the air chamber 100; furthermore, the through hole 14 is 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 cushion body A. The through hole 14 can be installed with a manual or electronically controlled flow valve 141, and 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 as to manually or automatically adjust the restoring force and buffering force of the first compression spring 10 according to customer needs or user requirements;

[0038] In other embodiments of the utility model, since the gas is compressible, it is not necessary to provide a through hole 14 for gas to enter and exit. When the through hole 14 is not provided, the first compression spring 10 can obtain an effect equivalent to that of the present embodiment only by virtue of its own elasticity and elastic deformation.

[0039] Specifically, without the through hole 14, the first compression spring 10 is made of a plastic material with restorability (such as rubber), so that when the utility model is subjected to the pressure applied by the user from top to bottom or when sitting or lying down, the air chamber 100 of the first compression spring 10 and the air inside the air chamber 100 are first contacted and buffered, and then the second compression spring 20 performs subsequent buffering. Therefore, 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 a better comfortable feel to the user;

[0040] Finally, the connecting portion 15 is provided for coaxially mounting the second compression spring 20 in series. The connecting portion 15 extends downward along the periphery of the bottom 12 to form a countersunk hole 151 with an opening facing downward, and a clamping edge 152 is protruded from the wall of the countersunk hole 151.

[0041] As shown in the figure, the second compression spring 20 is a coil spring. The utility model further controls the restoring force of the second compression spring 20 to be greater than the restoring force of the first compression spring 10. The second compression spring 20 is defined along the axial direction with relative top and bottom edges, so that the top edge of the second compression spring 20 can be inserted into the countersunk hole 151 of the connecting portion 15 from bottom to top, and can be positioned by the card edge 152, so that the second compression spring 20 and the first compression spring 10 are coaxially connected in series to form a modular composite independent tube B, so as to be quickly installed to a predetermined position inside the pad body A, so that the second compression spring 20 and the first compression spring 10 belonging to the composite independent tube B are sufficient to compress the buffer from top to bottom. When the second compression spring 20 generates aftershocks due to the restoring force after being stressed, due to the first compression spring The restoring force of the spring 10 is smaller than the restoring force of the second compression spring 20, so the first compression spring 10 can exert a similar damping effect on the second compression spring 20, so the first compression spring 10 can effectively reduce the aftershock caused by the excessive restoring force of the second compression spring 20; it is particularly noted here that the spiral spring disclosed by the second compression spring 20 can be made of any material such as spring steel, composite material, plastic material, etc., and it is only necessary to control the restoring force of the second compression spring 20 to be greater than the restoring force of the first compression spring 10. Furthermore, the second compression spring 20 can also be a gas pressure spring or a corrugated spring or other different types of springs with a greater restoring force than the first compression spring 10. Therefore, it is a technical feature of the present invention to control the restoring force of the second compression spring 20 to be greater than the restoring force of the first compression spring 10;

[0042] The outer layer unit 30 is composed of a top pad 31, a bottom pad 32 and a jacket 33. The top pad 31 and the bottom pad 32 are substantially the same size as the pad body A. A matching number of composite independent tubes 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. Then, the top pad 31 is laid on the top 11 of the composite independent tube B. Finally, the jacket 33 is sewn around the pad body A to make a Figure 4 and Figure 5 The finished pad body A shown in the figure has a gap between the outer sleeve 33 and the adjacent composite independent tube B, and a filler (not shown) can be installed in the gap to further fix the composite independent tube B.

[0043] The utility model has at least the following improvements:

[0044] (I) The utility model uses the second compression spring 20 to provide the main restoring force of the composite independent tube B. Since the restoring force of the first compression spring 10 is smaller than that of the second compression spring 20, the first compression spring 10 has extremely good shock absorption comfort. Therefore, when the cushion body A is subjected to a force from top to bottom, the first compression spring 10 can relatively weaken the aftershock caused by the larger restoring force of the second compression spring 20, so that the aftershock shaking of the user when sitting or lying on the cushion body A is reduced to a minimum, thereby taking into account both comfort and restorability;

[0045] (ii) With respect to the cushion body A of the same specification, the total free height of the composite independent cylinder B of the present invention is equivalent to the free height of the conventional coil spring, and 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 portion 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 smaller than the free height of the conventional coil spring, thereby making the mass of the second compression spring 20 of the present invention lighter than the conventional coil spring, so as to control the restoring force of the second compression spring 20 to be smaller than that of the conventional coil spring, thereby further improving the aftershock of the conventional coil spring, thereby reducing the shaking of the cushion body A after being subjected to force, and further improving the comfort of the cushion body A when sitting or lying;

[0046] (III) In the present invention, the connecting portion 15 of the first compression spring 10 is wound around the outer periphery of the top edge of the second compression spring 20 to form a protective cover around 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, and the connecting portion 15 is integrally formed with the first compression spring 10, so its structural strength is much greater than the cloth cover around the outer periphery of the traditional coil spring. In comparison, the probability of the connecting portion 15 of the present invention being pierced by the top edge of the second compression spring 20 is lower than the probability of the cloth cover around the outer periphery of the traditional coil spring being pierced by the top edge of the second compression spring 20, so the present invention has a substantial improvement in safety.

[0047] Please see Figure 6 and Figure 7 , which are respectively the second and third embodiments of the composite independent cylinder B of the utility model, mainly illustrating that the second compression spring 20 of the utility model can be installed in parallel in multiple forms at the connecting portion 15, and the second compression spring 20 is installed side by side and symmetrically below the first compression springs 10A and 10B. Specifically, FIG. 6 shows that two second compression springs 20 are symmetrically connected in parallel at the connecting portion 15 below a first compression spring 10A. Figure 7 It is revealed that four second compression springs 20 are symmetrically connected in parallel with the connecting portion 15 below another first compression spring 10B. Figure 6 and Figure 7 The first compression springs 10A, 10B may have corresponding shapes such as ellipse, square or other geometric shapes. It is only necessary to control the second compression spring 20 to be able to symmetrically withstand the force transmitted by the first compression springs 10A, 10B.

[0048] Please see Figure 8 , which is the fourth embodiment of the composite independent cylinder B of the utility model, further defines that a third compression spring 10C is additionally installed at 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 coaxially connected in series and subjected to force, and the structure of the third compression spring 10C is the same as and symmetrical to the first compression spring 10, so that the first compression spring 10 and the third compression spring 10C can relatively weaken the aftershock of the second compression spring 20 at the same time.

[0049] In summary, the overall structural features of the utility model can indeed improve the lack of recovery of the traditional pneumatic independent cylinder and overcome the shortcomings of the traditional spring independent cylinder. However, the above is only a preferred embodiment of the utility model, and it cannot be used to limit the scope of implementation of the utility model. That is, all equal changes and modifications made according to the scope of the patent application of the utility model are within the scope of the utility model.

Claims

1. A composite independent cylinder, characterized in that: At least: A first compression spring, comprising a top, a bottom, a barrel connected between the top and the bottom, an air chamber formed inside the barrel, and a connecting portion arranged at the bottom, wherein the barrel can be elastically deformed when the top is subjected to force; A second compression spring has a top edge and a bottom edge. The top edge is installed on 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 independent cylinder according to claim 1, characterized in that: The connecting portion extends downward from the bottom to form a countersunk hole opening downward, the hole diameter of the countersunk hole is sufficient to provide the top edge of the second compression spring for installation, and the second compression spring is a coil spring.

3. The composite independent cylinder according to claim 1, characterized in that: The first compression spring has a strain area formed on the barrel and a through hole communicating with the inside and outside of the air chamber.

4. The composite independent cylinder according to claim 3, characterized in that: The strain zone is formed into wrinkle-like corrugations in the area where the barrel is located.

5. The composite independent cylinder according to claim 3, characterized in that: The through hole is equipped with a flow valve.

6. The composite independent cylinder according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The second compression springs are installed together on the connecting portion in a plurality, so that the second compression springs are installed side by side and symmetrically below the first compression spring.

7. The composite independent cylinder according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The third compression spring is installed at 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 coaxially stressed.

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

9. A cushion body, characterized in that: The invention comprises the composite independent tube as claimed in any one of claims 1 to 8, and an outer layer unit for installing the composite independent tube.

10. The pad body according to claim 9, characterized in that: The outer layer unit is composed of a top pad, a bottom pad and an outer cover; a matching number of composite independent tubes are arranged side by side on the top surface of the bottom pad, the top pad is laid on the top of the composite independent tubes, and the outer cover is sewn on the outer periphery of the top pad and the bottom pad.

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