Mattress spring and bagged spring using same

Abstract

The utility model relates to a spring used on a mattress, in particular to a mattress spring and a bagged spring using the same. The utility model provides a mattress spring and a bagged spring using the same to solve the technical problems that a spring in an existing bagged spring is soft in upper part and hard in lower part and is easy to bend, so that the support of the spring becomes poor and even becomes invalid and the like. The mattress spring comprises a spring body with a variable-diameter section and a cylindrical section, the variable-diameter section and the cylindrical section are connected up and down, the outer diameter of the variable-diameter section is gradually increased from top to bottom, the variable-diameter section is in a cone frustum shape, the top face and the bottom face of the cone frustum are both round, and the spring body is provided with an anti-bending structure to prevent the variable-diameter section from being bent. According to the spring, the upper section of the spring is prevented from being bent due to excessive bending through structural change, so that the support of the spring becomes poor and even becomes invalid; the bagged spring using the spring is stable and reliable in supporting performance, and a user feels comfortable when using the bagged spring on a mattress.

Description

Technical Field

[0001] The utility model relates to a spring used on a mattress, in particular to a mattress spring and a pocket spring using the same. Background Art

[0002] The spring on a common single pocket spring is formed by connecting a columnar body at the lower section and a conical head at the upper section. The hardness of the conical head is smaller than that of the columnar body. During operation, the conical head is bent excessively, resulting in bending, poor spring support or even support failure, and thus the comfort of the mattress using the spring is significantly reduced. In addition, the height of the conical head is small and the number of turns is large, resulting in a large waste of materials for spring manufacturing.

[0003] Furthermore, the pocket spring with the aforementioned spring is mostly filled with a cloth bag with equal diameters at the upper and lower parts. There is a large gap between the port of the cloth bag and the top of the conical shape of the upper part of the spring. The wrapping and positioning effect of the cloth bag on the conical head of the spring is poor, and it is difficult for the pocket spring to form an effective upward support working surface. Summary of the Utility Model

[0004] To solve the technical problem that the spring in the existing pocket spring is soft at the upper part and hard at the lower part and is easy to bend, resulting in poor spring support or even failure, the utility model provides a mattress spring and a pocket spring using the same. The spring of the utility model prevents the upper section of the spring from being bent excessively through structural changes, resulting in poor spring support or even failure; the pocket spring using the spring has stable and reliable support performance and a comfortable sleeping feeling when used on a mattress.

[0005] The technical solution adopted by the utility model to solve the technical problem: A mattress spring includes a spring body with a variable diameter section and a cylindrical section. The variable diameter section and the cylindrical section are connected up and down. The outer diameter of the variable diameter section gradually increases from top to bottom. The feature is that the variable diameter section is in the shape of a frustum of a cone, and the top surface and the bottom surface of the frustum of the cone are both circular. The spring body is provided with an anti-bending structure to prevent the variable diameter section from being bent under pressure. The upper section of the spring body is changed from the existing conical shape to a frustum of a cone with both the top and the bottom being circular. The frustum of the cone retains the characteristic of the diameter increasing from top to bottom. When the spring body is under pressure during operation, it provides a progressive support feeling from soft to hard to the pressing side; at the same time, the spring body has an anti-bending structure to avoid excessive bending of the upper section of the spring, so as to ensure the normal operation of the spring and provide elastic support.

[0006] As a further improvement and supplement to the above technical solution, the present utility model adopts the following technical measures: the spring height of the cylindrical section of the anti-bending structure is greater than that of the variable-diameter section, and the spring pitch of both the cylindrical section and the variable-diameter section is the same. When the pitch of the two parts of the variable-diameter section and the cylindrical section is the same, making the spring height ratio of the two parts of the variable-diameter section and the cylindrical section less than 1, that is, the height of the cylindrical section is greater than the height of the high end of the variable-diameter section. By controlling the height ratio, it helps to increase the critical force value required for the spring bending of the variable-diameter section, thereby improving the anti-bending ability of the spring in this part and preventing excessive bending.

[0007] Preferably, the spring height ratio of the variable-diameter section and the cylindrical section is between 0.5 and 0.75. When the spring height ratio of the two parts of the variable-diameter section and the cylindrical section is within this range, it can significantly increase the critical force value for anti-bending of the variable-diameter section and make it difficult for the variable-diameter section to undergo bending deformation.

[0008] Preferably, the spring pitch of the variable-diameter section of the anti-bending structure is smaller than that of the cylindrical section. By making the spring pitch of the variable-diameter section smaller than that of the cylindrical section, the spring in the variable-diameter section can enter the compression state faster after being compressed and be compressed prior to the cylindrical section, thereby greatly reducing the possibility of excessive bending of the variable-diameter section.

[0009] Preferably, the spring pitch of the variable-diameter section increases sequentially from top to bottom. The spring pitch of the variable-diameter section increases sequentially from top to bottom, enabling the upper part of the spring in the variable-diameter section to enter the compression stage faster. On the basis of ensuring a support level from soft to hard, it reduces the lateral offset of the spring where the variable-diameter section is located due to the lateral component force during the compression process without the constraint of a cloth bag, and the resulting shortening of the spring service life.

[0010] Preferably, the spring pitch of the variable-diameter section increases by 0.5 - 2 cm sequentially from top to bottom. The spring pitch of the variable-diameter section gradually increases in the range of 0.5 - 2 cm from top to bottom, enabling the spring to be quickly compressed and facilitating manufacturing and production.

[0011] Preferably, the spring body further includes an inverted cone section with a larger upper part and a smaller lower part. The large-diameter end of the inverted cone section is connected to the bottom of the cylindrical section, and the variable-diameter section, the cylindrical section, and the inverted cone section are of an integral structure. By connecting an integral inverted cone section to the bottom of the cylindrical section, it not only facilitates the processing and manufacturing of the spring body, but also when needed, the spring together with the mattress on which it is placed can be turned over so that the inverted cone section faces upward, changing the sleeping experience of the mattress and enabling both sides of the mattress to be slept on.

[0012] The second purpose of the invention of the utility model is to provide a pocket spring, an outer cloth and a spring core wrapped therein, the spring core is composed of a plurality of positioning tubes with built-in springs, the positioning tubes are made of cloth bags and wrapped and fitted outside the springs, the cloth bags of each positioning tube are a conjoined structure, and two adjacent cloth bags are separated by a partition section of an integral structure, characterized in that the spring is the mattress spring described in the first one. The pocket spring made of the mattress spring described above is stable and reliable when working, and will not suffer from poor support and failure due to excessive bending of the upper part of the spring.

[0013] Preferably, the partition is a straight-line partition, and the cylinder cavity of the positioning cylinder is arranged with equal diameters along the axis from the opening position. The straight-line partition makes the two adjacent positioning cylinders closer together, and the spacing between the two positioning cylinders is small. The cylinder cavity of the positioning cylinder has equal diameters along the axis, and the cylinder cavity opening is large, which is suitable for springs with small taper changes in the diameter-changing section and large proportion of the height of the cylindrical section, ensuring that the opening end of the pocket spring forms an effective supporting working surface.

[0014] Preferably, the partition section is a Y-shaped partition section, and the barrel cavity of the positioning barrel forms a tapered section matching the variable diameter section and a constant diameter section matching the cylindrical section along the axis starting from the opening position. The Y-shaped partition section allows a larger spacing between the upper portions of two adjacent positioning barrels, and then the upper portion of the positioning barrel is narrowed and closed, and forms a tapered barrel cavity matching the variable diameter section, so as to wrap up the spring with a large taper change in the variable diameter section. The Y-shaped partition section pulls the two adjacent positioning barrels, thereby lateral restriction of the variable diameter section, preventing the variable diameter section from excessive bending due to lack of lateral restriction during the compression process, and ensuring that the opening end of the spring is formed to form an effective supporting working surface.

[0015] The beneficial technical effects of the utility model are as follows: the upper section of the spring is prevented from bending due to excessive bending through structural changes, which causes the spring support to deteriorate or even fail; the pocket spring using the spring has stable and reliable support performance, and is comfortable to use on the mattress for a long time, providing a good sleeping experience. Furthermore, the spring is connected to an integral inverted cone section at the bottom of the cylindrical section, which is convenient for processing and manufacturing. When the mattress is turned over with the inverted cone section facing upward, a new sleeping experience can be added, so that the mattress with the spring has different sleeping sensations on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : Schematic diagram of the structure of Example 1.

[0017] Figure 2 : The structural diagram of Example 2.

[0018] Figure 3 : The structural diagram of Example 3.

[0019] Figure 4 : The structural diagram of embodiment 4.

[0020] In the figure: 1. Reducing section, 2. Cylindrical section, 3. Positioning cylinder, 3-1. Tapered section, 3-2. Equal-diameter section, 4. Linear dividing section, 5. Y-shaped dividing section, 6. Inverted cone section. Specific implementation manner

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0022] As Figure 1 shown, Embodiment 1 is a mattress spring, including a spring body with a reducing section 1 and a cylindrical section 2. The reducing section 1 is the N1 part in the figure, and the cylindrical section 2 is the N2 part in the figure. The reducing section 1 and the cylindrical section 2 are connected up and down. The outer diameter of the reducing section 1 gradually increases from top to bottom. The reducing section 1 is in the shape of a frustum of a cone, and the top and bottom surfaces of the frustum of the cone are both circular. The spring body is provided with an anti-bending structure to prevent the reducing section 1 from being bent under pressure. In this embodiment, the anti-bending structure is that the spring height of the cylindrical section 2 is greater than the spring height of the reducing section 1, and the spring pitch t of both the cylindrical section 2 and the reducing section 1 is the same. The ratio of the spring height of the reducing section 1 to the spring height of the cylindrical section 2 is between 0.5 and 0.75, and this embodiment preferably is 0.6; the outer diameter D1 of the reducing section 1 is between 3.6 and 7 cm, and the effective number of turns is 2 to 5 turns, preferably 3 turns; the outer diameter D2 of the cylindrical section is between 5 and 10 cm, this embodiment preferably is 7 cm, and the effective number of turns is 3 to 7 turns, preferably 5 turns.

[0023] In this embodiment, the upper section of the spring body is changed from the existing conical shape to a frustum of a cone with both the top and bottom being circular. The frustum of the cone retains the characteristic that the diameter becomes larger from top to bottom. When the spring body is under pressure, it can provide a progressive support feeling from soft to hard to the pressing side. By controlling the height ratio of the reducing section and the cylindrical section, the critical force value required for the spring to bend in the reducing section is increased, thereby improving the anti-bending ability of the spring in this part, preventing the spring in the reducing section from being overly bent, and ensuring that the spring works normally to provide elastic support. When the spring works to match the human body shape, the support coils at the upper part of the spring will be irregularly tilted up and down due to horizontal and vertical bending. This solution can also solve the influence of this local tilt on the service life of the spring.

[0024] When the height ratio is within the range of 0.5 to 0.75 described above, the critical force value for the reducing section to resist bending can be significantly increased, and the critical force value for the reducing section to be difficult to bend can be increased.

[0025] Furthermore, the spring body further includes an inverted cone section 6 with a large upper part and a small lower part. The large-diameter end of the inverted cone section 6 is connected to the bottom of the cylindrical section 2. The reducing section 1, the cylindrical section 2, and the inverted cone section 6 are of an integral structure. The diameter of the integral-structure inverted cone section gradually decreases from top to bottom, which is convenient for the processing and manufacturing of the spring body. When needed, the spring together with the mattress on which it is placed can be turned over so that the inverted cone section faces up, changing the sleeping feeling experience of the mattress and enabling both sides of the mattress to be slept on.

[0026] like Figure 2 As shown, Example 2 is also a mattress spring and also has an anti-bending structure, and also includes a spring body with a variable diameter section 1 and a cylindrical section 2. The variable diameter section 1 and the cylindrical section 2 are respectively N1 part and N2 part in the figure. The variable diameter section 1 and the cylindrical section 2 are also connected up and down. The outer diameter of the variable diameter section 1 gradually increases from top to bottom. The variable diameter section 1 is also in the shape of a truncated cone. The top and bottom surfaces of the truncated cone are both circular. The spring body is provided with an anti-bending structure different from that in Example 1 to prevent the variable diameter section 1 from bending under pressure. The anti-bending structure of this embodiment is that the spring pitch of the variable diameter section 1 is smaller than the spring pitch of the cylindrical section 2. Such a design can make the spring of the variable diameter section part enter the compression state faster after being compressed, and be compressed before the cylindrical section, thereby reducing the possibility of excessive bending of the variable diameter section. In addition, the bottom of the cylindrical section can also be provided with an inverted cone section with an integral structure therewith.

[0027] Furthermore, the spring pitch of the variable diameter section 1 increases from top to bottom, so that the upper part of the spring where the variable diameter section 1 is located enters the compression state faster, and on the basis of ensuring the support of soft first and hard later, the spring where the variable diameter section is located is reduced due to the lateral force component during the compression process, and then the unexpected lateral displacement occurs without the constraint of the bag, and the resulting shortening of the spring service life. In this embodiment, the spring pitch of the variable diameter section 1 is preferably increased by 0.5 to 2 cm from top to bottom.

[0028] like Figure 3 As shown, Example 3 is a pocket spring, including an outer decorative cloth and a spring inner core wrapped therein, the spring inner core is composed of a plurality of positioning tubes 3 with built-in springs, wherein the springs are the mattress springs described in Example 1; the positioning tubes 3 are made of cloth bags and wrapped and fitted on the outside of the springs, the cloth bags of each positioning tube 3 are a connected structure, and two adjacent cloth bags are separated by a partition section of an integrated structure.

[0029] The pocket spring made using the spring described in Example 1 has a stable supporting effect during operation and is not prone to failure.

[0030] Furthermore, as shown in the figure, the partition section in this embodiment is a straight-line partition section 4, and the cylinder cavity of the positioning cylinder 3 is set along the axis with equal diameter from the opening position. The straight-line partition section reduces the distance between the two positioning cylinders, and the cylinder cavity of the positioning cylinder has equal diameter along the axis, so that the cylinder cavity opening is also larger, which is suitable for springs with small taper changes in the diameter-changing section and large proportion of the height of the cylindrical section, and can also ensure that the opening end of the pocket spring forms an effective supporting working surface.

[0031] like Figure 4As shown, Example 4 is also a pocket spring, which also has an outer decorative cloth and a spring core wrapped therein, and the spring core is composed of a plurality of positioning tubes 3 with built-in springs, wherein the springs are the mattress springs described in Example 2; the positioning tubes 3 are also made of cloth bags and wrapped and fitted on the outside of the springs, and the cloth bags of each positioning tube 3 are a connected structure, and two adjacent cloth bags are separated by a partition section of an integrated structure.

[0032] Because the spring described in Example 2 also has an anti-bending structure, the variable diameter section on the spring has a good anti-bending effect when the spring is under pressure, so the bagged spring is stable and reliable when working and is not prone to failure.

[0033] Furthermore, as shown in the figure, the partition section in this embodiment is a Y-shaped partition section 5, and the barrel cavity of the positioning barrel 3 forms a conical section 3-1 matching the variable diameter section 1 and a constant diameter section 3-2 matching the cylindrical section 2 along the axis starting from the opening position.

[0034] The Y-shaped separation section allows a larger spacing between the upper parts of two adjacent positioning tubes, so that the closing of the upper part of the positioning tube can be smaller, and a tapered section tube cavity that can wrap the variable diameter section tightly is formed, so as to wrap the spring with a large taper change of the variable diameter section tightly. The Y-shaped separation section pulls the two adjacent positioning tubes, thereby lateral restriction of the variable diameter section, preventing the variable diameter section from excessive bending due to lack of lateral restriction during the compression process, and ensuring that the open end of the spring is formed with an effective supporting working surface.

Claims

1. A mattress spring, comprising a spring body with a diameter-reducing section (1) and a cylindrical section (2), wherein the diameter-reducing section (1) and the cylindrical section (2) are connected up and down, and the outer diameter of the diameter-reducing section (1) gradually increases from top to bottom, wherein the spring body is characterized in that The diameter-changing section (1) is in the shape of a truncated cone, the top surface and the bottom surface of the truncated cone are both circular, and the spring body is provided with an anti-bending structure to prevent the diameter-changing section (1) from bending under pressure.

2. The mattress spring according to claim 1, characterized in that The anti-bending structure is such that the spring height of the cylindrical section (2) is greater than the spring height of the diameter-changing section (1), and the spring pitches of the cylindrical section (2) and the diameter-changing section (1) are the same.

3. The mattress spring according to claim 2, characterized in that The spring height ratio between the diameter-changing section (1) and the cylindrical section (2) is between 0.5 and 0.

75.

4. The mattress spring according to claim 1, characterized in that The anti-bending structure is such that the spring pitch of the variable diameter section (1) is smaller than the spring pitch of the cylindrical section (2).

5. The mattress spring according to claim 4, characterized in that The spring pitch of the variable diameter section (1) increases sequentially from top to bottom.

6. The mattress spring according to claim 5, characterized in that The spring pitch of the variable diameter section (1) increases by 0.5 to 2 cm from top to bottom.

7. The mattress spring according to claim 1, characterized in that The spring body also includes an inverted cone section (6) that is larger at the top and smaller at the bottom, the large diameter end of the inverted cone section (6) is connected to the bottom of the cylindrical section (2), and the reduced diameter section (1), the cylindrical section (2) and the inverted cone section (6) are an integrated structure.

8. A pocket spring, comprising an outer decorative cloth and a spring inner core wrapped therein, wherein the spring inner core is composed of a plurality of positioning tubes (3) with built-in springs arranged in an arranged manner, wherein the positioning tubes (3) are made of cloth bags and wrapped and attached to the outside of the springs, wherein the cloth bags of each positioning tube (3) are a conjoined structure, and two adjacent cloth bags are separated by a partition section of an integral structure, wherein the characteristics are: The spring is a mattress spring as claimed in any one of claims 1 to 7.

9. The pocket spring according to claim 8, characterized in that The partition section is a straight-line partition section (4), and the barrel cavity of the positioning barrel (3) is arranged with equal diameters along the axis starting from the opening position.

10. The pocket spring according to claim 8, characterized in that The partition section is a Y-shaped partition section (5), and the barrel cavity of the positioning barrel (3) forms a tapered section (3-1) matching the variable diameter section (1) and a constant diameter section (3-2) matching the cylindrical section (2) along the axis starting from the opening position.

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