WO2020015020A1

WO2020015020A1 - Spring, spring string and spring core

Info

Publication number: WO2020015020A1
Application number: PCT/CN2018/098118
Authority: WO
Inventors: 叶如剑
Original assignee: 浙江华剑智能装备有限公司
Priority date: 2018-07-16
Filing date: 2018-08-01
Publication date: 2020-01-23
Also published as: CN209090510U; CN108968501A; CN108713932A; CN209090509U

Abstract

Provided is a spring string (100), comprising a cloth bag (2) and a plurality of springs (1), wherein each spring (1) is formed by means of a metal wire being coiled into a spiral shape; the cloth bag (2) is provided with a plurality of bag chambers (201) arranged at intervals in the length direction of the cloth bag (2), and the plurality of springs (1) are respectively arranged into the plurality of the bag chambers (201); and the spring string (100) is divided into a plurality of parts in the length direction of the cloth bag (2), and the rigidity of the spring (1) in at least one part is different from the rigidity of the spring (1) in the remaining parts. The spring string (100) is simple in structure, reduces the manufacturing costs, and is suitable for the physiological curve requirements of a human body, so as to improve the comfort level of a mattress. Further provided are a spring (1) and a spring core (200).

Description

Spring, spring string and spring core

Technical field

The present application relates to the technical field of spring manufacturing, and more particularly, to a spring, a spring string, and a spring core.

Background technique

Springs are widely used in the production of spring cores for mattresses and sofas. The spring cores include multiple sets of springs spaced along the longitudinal direction, and each set of springs includes multiple springs arranged in the lateral direction.

Various spring cores have been proposed in the related art, but all have their own problems and there is a need for improvement.

Application content

This application is based on the applicant's discovery and knowledge of the following facts and issues:

Document CN106419289A discloses an integrated multi-layered bagged spring string with continuous and gradually varying intervals, including a plurality of continuous and independent receiving cavities formed by cloth and groups of springs wrapped in each of the containing cavities. The cloth has at least one curve Separate seams to separate each containing cavity to form at least two independent cavities. The divided seams in two adjacent independent cavities are not on the same horizontal line, so that the heights of the left and right adjacent independent cavities are not equal. Each spring in the group of springs is stacked and wrapped independently in a corresponding independent cavity. When each spring is wrapped and enclosed in independent cavities of varying heights, the initial compression of each spring is different, so that each region of the bagged spring string is different in softness.

The multi-layer pocket spring string disclosed in this document realizes that each region of the pocket spring string is different in softness by wrapping the spring in independent cavities of different heights. Because multiple independent cavities of different heights need to be provided, the structure is complicated and the cost is high.

In order to solve at least one of the problems in this document, this application proposes a spring string on the one hand. The spring string has simple structure and processing, low cost, and improves the comfort of the mattress formed by the spring string. .

Another aspect of the present application proposes a spring.

Another aspect of the present application provides a spring core.

The spring string according to the embodiment of the first aspect of the present application includes a cloth bag and a plurality of springs, the spring is wound in a spiral shape by a metal wire, and the cloth bag has a plurality of bag chambers spaced apart along the length direction of the bag. The springs are respectively provided in a plurality of the bag chambers, and the spring string is divided into a plurality of sections along the length direction of the cloth bag. The stiffness of the spring in at least one section is different from that of the springs in the other sections. .

The spring string according to the embodiment of the first aspect of the present application has simple structure and processing and low cost. By setting the softness and hardness of different positions of the spring string to be different, the physiological curve requirements of the human body can be applied to improve the spring string. The comfort and user experience of the mattress formed by the strings.

In some embodiments, each of the springs is divided into a plurality of spring segments connected in sequence, and at least two of the plurality of spring segments have different stiffnesses from each other.

In some embodiments, at least one of the number of effective turns, the median diameter, the hardness of the wire, and the diameter of the wire of the at least two segments are different from each other.

In some embodiments, the effective turns of the at least two segments are different, and the median diameters of the at least two segments are the same or different.

In some embodiments, the median diameters of the at least two segments are different, and the effective turns of the at least two segments are the same.

In some embodiments, each spring is divided into a first spring section and a second spring section that are connected to each other, and the stiffness of the first spring section and the stiffness of the second spring section are different.

In some embodiments, the stiffness of the first spring section of the spring in the at least one section is different from the stiffness of the first spring section of the spring in the remaining sections.

In some embodiments, the stiffness of the first spring segments of the plurality of springs changes in a curve along the length direction of the cloth bag.

In some embodiments, the stiffnesses of the second spring segments of a plurality of said springs are the same as each other.

In some embodiments, each of the springs is divided into a first spring section, a second spring section, and a third spring section connected in sequence, and the stiffnesses of the first spring section and the third spring section are the same as each other. The stiffness of the two spring segments is different from the stiffness of the first and third spring segments.

In some embodiments, the effective number of turns of the first and third spring segments is the same, and the effective number of turns of the first and third spring segments is a curve along the length direction of the bag. Variety.

In some embodiments, the stiffness of a plurality of the springs varies in a curve along a length direction of the cloth bag.

In some embodiments, one of the number of effective turns, the middle diameter, the hardness of the wire, and the diameter of the wire of the plurality of springs varies in a curve along the length direction of the bag.

In some embodiments, the number of effective turns of the spring in the at least one section is different from the number of effective turns of the spring in the remaining section, and the median diameter of the spring in the at least one section is different from that in the remaining section The middle diameters of the springs are the same or different.

In some embodiments, the diameter of the wire of the spring in the at least one section is different from the diameter of the wire of the spring in the remaining sections.

In some embodiments, the hardness of the wire of the spring in the at least one section is different from the hardness of the wire of the spring in the remaining sections.

In some embodiments, each spring is conical.

In some embodiments, the spring in each pocket is wound from a wire.

In some embodiments, a plurality of wires of the spring are divided into at least two kinds, and the hardness of the at least two kinds of wires is different from each other.

In some embodiments, the wires of a plurality of the springs are divided into two types.

The spring core according to the embodiment of the second aspect of the present application includes a plurality of spring strings. The spring strings are the spring strings according to any one of the above embodiments. Each spring string extends in a longitudinal direction, and the plurality of spring strings are arranged in a lateral direction. .

The spring according to the embodiment of the third aspect of the present application is wound by a metal wire in a spiral shape and is divided into a plurality of spring segments connected in sequence, and at least two of the plurality of spring segments have different stiffness from each other.

A spring core according to an embodiment of the fourth aspect of the present application includes a plurality of springs, the plurality of springs are arranged in a plurality of rows in a lateral direction and a plurality of rows in a longitudinal direction, the spring core is divided into a plurality of regions, at least one region The stiffness of the first spring section of the inner spring is different from the stiffness of the first spring section of the spring in the remaining area.

In some embodiments, the stiffness of the springs in each row changes in a curve, the changes in the stiffness of the springs in two adjacent rows are the same, and the stiffnesses of the springs in the same column are the same as each other.

In some embodiments, each of the springs is divided into a plurality of spring segments connected in sequence, and the stiffness of at least two of the plurality of spring segments is different from each other. The effective number of turns, the middle diameter, and the wire of the at least two segments are different from each other. At least one of the hardness and the diameter of the wire is different from each other.

In some embodiments, each of the springs is divided into a plurality of spring segments connected in sequence, and the stiffness of at least two of the plurality of spring segments is different from each other. Each spring is divided into a first spring segment and a second connected in sequence. Spring section, the number of effective turns of the second spring section is different from that of the first spring section, and the number of effective turns of the second spring section of the plurality of springs is the same and the middle diameter is the same. The middle diameters of the spring segments are the same as each other. The effective number of turns of the first spring segment of the spring in each row changes in a curve. The effective number of turns of the first spring segment in two adjacent rows has the same change curve. The first spring segments of the spring have the same number of effective turns and the same middle diameter.

In some embodiments, each of the springs is divided into a plurality of spring segments connected in sequence, and the stiffness of at least two of the plurality of spring segments is different from each other. Each spring is divided into a first spring segment and a second connected in sequence. A spring section and a third spring section, the effective number of turns of the first spring section and the third spring section are the same as each other, and the effective number of turns of the second spring section is the same as that of the first spring section and the third spring section The number of turns is different. The effective number of turns of the first and third spring segments of the spring in each row shows the same curve. The change curve of the effective number of turns of the first spring segment of the spring in two adjacent rows is the same. , The effective number of turns of the first spring segment of the spring in the same column is the same, the effective number of turns of the third spring segment of the spring in the same column is the same, and the effective number of effective turns of the second spring segment of the spring in the same column is the same.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of a spring according to an embodiment of the present application;

2 is a schematic structural diagram of a spring according to another embodiment of the present application;

3 is a schematic structural diagram of a spring according to still another embodiment of the present application;

4 is a schematic structural diagram of a spring segment according to another embodiment of the present application;

5 is a schematic structural diagram of a spring string according to an embodiment of the present application;

6 is a cross-sectional view of a spring string and a spring force according to an embodiment of the present application;

7 is a cross-sectional view of a spring string according to another embodiment of the present application;

FIG. 8 is a schematic diagram of a spring core according to an embodiment of the present application.

Reference signs:

The spring core 200, the spring string 100, the spring 1, the first spring section 11, the second spring section 12, the third spring section 13, the cloth bag 2, and the bag chamber 201.

detailed description

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientations or positional relationships indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or The positional relationship is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, structure and operation in a specific orientation, so it cannot be understood as a limitation on this application.

As shown in FIG. 1, a spring string 100 according to an embodiment of the present application includes a cloth bag 2 and a plurality of springs. The cloth bag 2 has a plurality of bag chambers 201 arranged at intervals along the length direction of the cloth bag 2 (longitudinal direction shown in FIG. 1). A plurality of springs are respectively disposed in the plurality of bag chambers 201. In other words, as shown in FIG. 1, the spring string 100 extends in the longitudinal direction and includes a cloth bag 2 extending in the longitudinal direction. The cloth bag 2 has a plurality of pocket chambers 201 arranged at longitudinal intervals, and each pocket chamber 201 is provided with a spring, thereby A plurality of springs in the spring string 100 are arranged at intervals in the longitudinal direction. The spring string 100 is divided into a plurality of sections along the length direction of the cloth bag 2 (longitudinal direction shown in FIG. 1), and the stiffness of the spring in at least one section is different from that of the springs in the other sections. In other words, as shown in FIG. 1, the spring string 100 is divided into a plurality of sections in the longitudinal direction, and at least two sections of the plurality of sections have different spring stiffnesses. It can be understood that the lengths of the springs in the plurality of pocket chambers 201 of the cloth bag 2 are the same, that is, the lengths of the plurality of springs in the spring string 100 are the same.

The spring string according to the embodiment of the present application has simple structure and processing and low cost. By setting the spring string 100 into sections with different rigidities in the longitudinal direction, the spring strings 100 can have different hardnesses in different sections in the longitudinal direction. Adapt to the physiological curve of the human body or the stress on the edge of the mattress, and improve the comfort and user experience of the mattress formed by the spring string.

Specifically, the spring 1 in the spring string 100 is wound in a spiral shape by a metal wire. For example, the spring 1 is wound in a spiral shape by a steel wire or an aluminum wire. The spring 1 is divided into a plurality of spring segments connected to each other along its length. As shown in FIG. 2, the stiffness of at least two of the plurality of spring segments is different from each other. It can be understood that the greater the spring stiffness, the harder the person feels when compressing the spring, and the smaller the spring stiffness, the softer the person feels when compressing the spring, that is, the spring stiffness is different, and the softness and hardness of the spring are different when the person compresses the spring. Therefore, in some embodiments, since the spring 1 is divided into a plurality of spring segments with different stiffnesses from at least two segments, the stiffness of the entire spring 1 can be adjusted by adjusting the stiffness of one of the plurality of spring segments. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless it is specifically and specifically defined otherwise.

For example, in some alternative embodiments, as shown in 3, the spring 1 is divided into a first spring section 11 and a second spring section 12, which are connected to each other along its length direction (up and down direction in FIG. 3), and the first spring section 11 The stiffness of is different from that of the second spring section 12. In other alternative embodiments, as shown in FIG. 4, the spring 1 is divided into a first spring section 11, a second spring section 12, and a third spring section 13, which are sequentially connected, and the first spring section 11 and the second spring section. The stiffness of 12 is different, and the stiffness of the second spring segment 12 is different from that of the third spring segment 13. It can be understood that the stiffness of the first spring segment 11 and the stiffness of the third spring segment 13 may be the same or different. Specifically, the stiffness of the first spring section 11 and the second spring section 12 are different, the stiffness of the second spring section 12 is different from that of the third spring section 13, and the stiffness of the first spring section 11 and the third spring section 13 are different. The stiffness is the same.

It can be understood that the spring 1 of the present application is not limited to this. For example, the spring 1 may not be segmented as long as it can meet the stiffness of the spring in at least one section of the spring string 100 and the spring in the remaining sections. Different stiffness is sufficient.

When the spring 1 has a structure as shown in FIG. 2-4, in order to make the stiffness of the spring 1 in at least one section different from the stiffness of the spring 1 in the other sections, it may be the same as that of the spring 1 in at least one section. The stiffness of the first spring section 11 is different from the stiffness of the first spring section 11 of the spring 1 in the remaining sections, and may also be the stiffness of the second spring section 12 of the spring 1 in at least one section and the stiffness of the second spring section 12 in the other sections. The stiffness of the second spring section 12 of the spring 1 is different, and the stiffness of the first spring section 11 of the spring 1 in at least one section may be different from that of the first spring section 11 of the spring 1 in the remaining sections, and The stiffness of the second spring section 2 of the spring 1 in at least one section is different from the stiffness of the second spring section 12 of the spring 1 in the remaining sections.

In other words, the plurality of sections divided longitudinally in the spring string 100, if the spring stiffness of at least two different sections is different, only the stiffness of the first spring section 11 of the spring 1 in the two different sections can be designed as Different, the stiffness of the second spring section 12 of the spring 1 in two different sections can also be designed to be different, and the stiffness of the first spring section 11 of the spring 1 in two different sections and two different sections can also be designed. The stiffnesses of the second spring segments 12 of the segmented springs 1 are all designed to be different, as long as the stiffnesses of the springs 1 in at least two different segments are different.

Specifically, the calculation formula of the pressure of the coil spring is F = P × S, where F is the spring pressure, S is the spring compression amount, and P is the spring stiffness.

It can be obtained from the above calculation formula that spring pressure F is related to spring stiffness P and spring compression S. Therefore, when the spring compression amount is constant, changing the spring stiffness P can change the spring pressure F; when the spring pressure F is constant, the spring stiffness P is different and the spring compression amount S is different.

More specifically, the calculation formula for the stiffness of the coil spring is

Among them, P is the stiffness of the spring, d is the diameter of the wire, D is the middle diameter of the spring, n is the effective number of turns of the spring, and G is the shear modulus. The effective number n of the springs is the number N of the springs minus the number of end faces (the spring has two upper and lower end faces), that is, the effective number of turns n = the number of spring turns N-2. Shear modulus G is a constant related to the material of the wire.

It can be obtained from the above calculation formula that the spring stiffness P is related to the spring diameter D, the effective number of turns n of the spring, and the diameter of the wire d. The stiffness of the spring can be changed by changing the middle diameter, the number of effective turns, and the diameter of the wire.

In addition, the hardness of the metal wire also affects the stiffness of the spring, that is, the stiffness of the spring made of materials of different hardness is different.

In order to make the stiffness of the spring in at least one section different from the stiffness in the remaining sections, the effective number of turns, the middle diameter, the hardness of the wire and the At least one of the diameters is different. For example, in some alternative embodiments, the effective number of turns of the spring in at least one section is different from the effective number of turns of the spring in the remaining sections, and the middle diameter of the spring in at least one section is different from the remaining sections The inner diameters of the springs are the same or different. In other optional embodiments, the effective number of turns of the spring in at least one section is the same as the effective number of springs in the remaining sections, and the middle diameter of the spring in at least one section is the same as that in the remaining sections. The middle diameters of the springs are the same or different.

In addition, it can be understood that the diameter of the wire of the spring in at least one section is different from the diameter of the wire of the spring in the remaining sections, or the hardness of the wire of the spring in at least one section is different from that of the remaining sections The hardness of the metal wires of the springs in the segments can make the stiffness of the spring in at least one section different from the stiffness in the remaining sections.

Specifically, in order to make the stiffness of the first spring section 11 of the spring 1 in two different sections different, the spring middle diameter, the effective number of turns, the wire diameter and Any one, any two, any three, and four of the hardnesses of the wires are different from each other to make the spring stiffness of the different sections different; similarly, to make the second spring section 12 of the spring 1 of the two different sections different With different stiffness, the spring middle diameter, the number of effective turns, the wire diameter and the wire hardness of the second spring section 12 of the spring 1 in different sections can be different from each other, any two, any three, and four In order to make the spring stiffness of different sections different.

In addition, it can be understood that the middle diameter in each spring segment may also be different. Specifically, different middle diameters in the first spring segment 11 may be different. For example, different middle diameters in the first spring segment 11 are from top to bottom. Gradually increase to make the first spring section 11 tapered, and / or different middle diameters in the second spring section 12 may be different, for example, different middle diameters in the second spring section 12 gradually increase from top to bottom So that the second spring section 12 is also tapered. As shown in FIG. 5, since the middle diameter of the first spring segment 11 gradually increases from top to bottom, the middle diameter of the second spring segment 12 also gradually increases from top to bottom, so that the entire spring 1 is tapered. In this embodiment, each spring 1 in the spring string 100 may be tapered.

In some embodiments, the spring 1 in each pocket chamber 201 is integrally wound by a metal wire. In other words, the first spring section 11 and the second spring section 12 of the spring 1 are integrally formed. The materials of the wires of the first spring section 11 and the second spring section 12 are the same, that is, the first spring section 11 and the second spring section 12 have the same material. The hardness of the wires is the same, and the diameters of the wires of the first spring section 11 and the second spring section 12 are the same. It can be understood that the present application is not limited to this, the spring 1 may be wound by two different metal wires, that is, the first spring section 11 is wound by the first metal wire, and the second spring section 12 is wound by the second The metal wire is wound, and the hardness of the first metal wire and the hardness of the second metal wire are different and / or the diameter of the first metal wire and the diameter of the second metal wire are different.

Specifically, as shown in FIG. 3, the spring 1 according to the embodiment of the present application includes a first spring section 11 and a second spring section 12 connected in order from top to bottom. The spring 1 is integrally wound into a spiral shape by a metal wire. The middle diameter of the first spring section 11 and the second spring section 12 are the same. The effective number of turns of the first spring section 11 is smaller than the effective number of turns of the second spring section 12 so that the stiffness of the first spring section 11 is less than The stiffness of the second spring section 12.

As shown in FIG. 4, the spring 1 according to the embodiment of the present application includes a first spring section 11, a second spring section 12, and a third spring section 13 connected in order from top to bottom. The spring 1 is integrally wound by a wire. In a spiral shape, the middle diameter of the first spring segment 11, the second diameter of the second spring segment 12 and the third diameter of the third spring segment 13 are the same, and the number of effective turns of the first spring segment 11 and the effective turns of the third spring segment 13 The number of effective turns of the first spring section 11 and the third spring section 13 is greater than that of the second spring section 12, so that the stiffness of the first spring section 11 and the third spring section 13 is less than that of the second spring section. 12 stiffness.

In some embodiments, as shown in FIGS. 6 and 7, the stiffness of a plurality of springs in the spring string 100 changes in a curve along the length direction of the cloth bag 2. In other words, the stiffness of multiple springs in the spring string 100 changes along a curve in the longitudinal direction. It can be understood that the stiffness of multiple springs in the spring string 100 along the longitudinal direction is different according to different physiological curves of the human body to improve comfort. Specifically, as shown in FIGS. 6 and 7, the stiffness change curve of the plurality of springs 100 in the spring string 100 can be adapted to the S-shaped curve of the human body, so that under the same compression amount, the spring pressure F changes in an S-shaped curve in the longitudinal direction. The softness and rigidity of the spring string 100 in the longitudinal direction are adapted to the physiological curve of the human body to further improve the comfort. In addition, it can be seen from the cross-sectional view of the spring string 100 that the plurality of springs 1 also conform to the S-shaped curve change along the length direction of the cloth bag 2.

Specifically, one of the number of effective turns, the middle diameter, the hardness of the metal wire, and the diameter of the metal wire of the plurality of springs in the spring string 100 changes in a curve along the length direction of the cloth bag 2.

More specifically, when the spring 1 has a structure as shown in FIG. 3, as shown in FIG. 6, the effective number of turns of the first spring segments 11 of the plurality of springs 1 in the spring string 100 changes along the length direction of the cloth bag 2. ; When the spring 1 has the structure shown in FIG. 4, as shown in FIG. 7, the effective number of turns of the first spring section 11 and the third spring section 13 of each spring 1 in the spring string 100 is the same, and The effective number of turns of the first spring segment 11 of the plurality of springs 1 changes along a curve along the length direction of the cloth bag 2. In other words, the effective number of turns of the third spring segment 13 of the plurality of springs 1 in the spring string 100 also changes in a curve along the length direction of the cloth bag 2. It can be understood that at this time, the middle diameters of the plurality of springs 1 are the same, and the effective turns of the plurality of second spring segments 12 are the same.

Further, the wires of the plurality of springs in the spring string 100 may be further divided into at least two kinds, the hardness of the at least two kinds of wires is different from each other and / or the diameters of the at least two kinds of wires are different from each other. In other words, there are at least two materials of the wires of the multiple springs in a spring string, and the hardness and / or the diameter of the wires of the two materials are different from each other. It can be understood that different spring diameters can change the stiffness of the wire, different hardness of the wire, and different spring stiffness. Changing at least one of the hardness and diameter of the wire can change the spring stiffness.

In some alternative embodiments, the diameter of the wire of the spring in at least one section is different from the diameter of the wire of the spring in the remaining sections; in other alternative embodiments, the diameter of the wire in the at least one section is different The hardness of the wire of the spring is different from that of the spring in the remaining sections. It can be understood that the present application is not limited to this, and there may be only one type of metal wire of a plurality of springs in a spring string, that is, a plurality of springs in each spring string are wound by one type of metal wire.

Specifically, the wires of the plurality of springs 1 in the spring string 100 are divided into two types, for example, one is a steel wire and the other is an aluminum wire. Some of the springs 1 in the spring string 100 are wound with a steel wire. The other part of the spring is made of aluminum wire.

A spring string according to a specific embodiment of the present application will be described below with reference to the accompanying drawings 1-3 and 6.

As shown in FIGS. 1, 2 and 6, the spring string 100 according to the embodiment of the present application includes a cloth bag 2 and a plurality of springs of the same length. The spring 1 includes a first spring section 11 and a second spring section that are sequentially connected from top to bottom. 12, the spring 1 is spirally wound by a single piece of metal wire. The middle diameter of the first spring segment 11 and the second spring segment 12 are the same. The effective number of turns of the first spring segment 11 is greater than that of the second spring segment. The effective number of turns of 12 is such that the stiffness of the first spring segment 11 is smaller than that of the second spring segment 12. The cloth bag 2 has a plurality of bag chambers 201 arranged at longitudinal intervals, and one bag chamber 201 is provided with a spring 1. The effective number of turns of the second spring segments 12 of the plurality of springs 1 in the string 100 is the same, the middle diameters of the second spring segments 12 of the plurality of springs 1 are the same, and the middle diameters of the first spring segments 11 of the plurality of springs 1 are the same, The effective number of turns of the first spring segments 11 of the plurality of springs 1 changes in an S-shaped curve along the longitudinal direction, so that the stiffness of the plurality of springs 1 changes in an S-shaped curve in the longitudinal direction.

The spring string according to another specific embodiment of the present application is described below with reference to the accompanying drawings 1-2, 4, and 7.

As shown in FIGS. 1-2, 4, and 7, the spring string 100 according to the embodiment of the present application includes a cloth bag 2 and a plurality of springs having the same length. The spring 1 includes a first spring section 11 and a second spring which are sequentially connected from top to bottom. The spring section 12 and the third spring section 13, the spring 1 is integrally wound into a spiral shape by a metal wire, the middle diameter of the first spring section 11, the middle diameter of the second spring section 12, and the middle diameter of the third spring section 13. Similarly, the cloth bag 2 has a plurality of bag chambers 201 arranged at intervals in the longitudinal direction. One bag chamber 201 is provided with a spring 1. The second spring segments 12 of the plurality of springs 1 in the spring string 100 have the same middle diameter. The plurality of springs 1 The middle diameters of the first spring segments 11 are the same as each other, the middle diameters of the third spring segments 13 of the plurality of springs 1 are the same, the number of effective turns of the second spring segments 12 of the plurality of springs 1 are the same, The effective number of turns of a spring segment 11 changes in an S-shaped curve along the longitudinal direction, and the effective number of turns of the third spring segment 13 of multiple springs 1 also changes in an S-shaped curve along the longitudinal direction, so that the stiffness of the plurality of springs 1 varies along the longitudinal direction. S-shaped curve changes.

The spring core according to the embodiment of the present application will be described below with reference to FIGS. 1-8.

As shown in FIG. 1-8, the spring core 200 according to the embodiment of the present application includes a plurality of spring strings. The spring strings are the spring strings 100 of the above embodiment. Each spring string 100 extends in the longitudinal direction, and the plurality of spring strings 100 are along Arrange horizontally. In other words, the spring core 100 includes a plurality of springs, which are arranged in multiple rows in the lateral direction and in multiple columns in the longitudinal direction, that is, multiple springs are arranged in multiple rows and columns, wherein the rows extend in the longitudinal direction to form a spring string 100, the columns extend in the transverse direction, wherein a plurality of springs in each row are arranged in the longitudinal direction, and a plurality of springs in each column are arranged in the lateral direction. The spring core 200 is divided into a plurality of regions, and the stiffness of the spring 1 in at least one region is different from that of the spring 1 in the remaining regions. In other words, the spring core 200 has at least two regions having different spring rates.

The spring core body according to the embodiment of the present application has simple structure and processing and low cost, and by setting the spring core body 200 in different regions with different spring stiffness, the softness and hardness of the spring core body 200 can be made different and can be adapted. The physiological curve of the human body or the stress on the edge of the mattress increases the comfort of the mattress.

It can be understood that, in order to make the stiffness of the spring in at least one region different from that in the rest of the region, the effective number of turns, the middle diameter, the hardness of the wire, and the wire of the spring in at least one region and the rest of the region can be changed. At least one of the diameters is different.

Specifically, the stiffness of the first spring segment 11 of the spring 1 in at least one region is different from the stiffness of the first spring segment 11 of the spring 1 in the remaining regions. Specifically, the spring middle diameter of the first spring segment 11 of the spring 1 in at least one region can be made different from the spring middle diameter of the first spring segment 11 of the spring 1 in the remaining regions to make the stiffness of the spring in the one region and the remaining regions Different; or, the effective number of turns of the first spring segment 11 of the spring 1 in at least one region can be made different from the effective number of turns of the first spring segment 11 of the spring 1 in the remaining region so that the The stiffness is different; or, the diameter of the wire of the first spring segment 11 of the spring 1 in at least one region can be made different from the diameter of the wire of the first spring segment 11 of the spring 1 in the remaining region so that the one region and the rest The stiffness of the zone spring is different; or, the hardness of the wire of the first spring section 11 of the spring 1 in at least one zone may be different from that of the wire of the first spring section 11 of the spring 1 in the remaining zones so that the one The stiffness of the spring in the region and the remaining regions is different; or, two, three, or all of the effective number of turns, the middle diameter, the diameter of the wire, and the hardness of the wire of the first spring segment 11 may be made different so that And the remaining regions within the region of the spring stiffness different.

More specifically, the stiffnesses of the second spring segments 12 of the plurality of springs 1 of the spring core 200 are the same as each other. It can be understood that, in order to change the stiffness of the spring 1, only the stiffness of the first spring segment 11 can be changed, that is, the stiffness of the plurality of first spring segments 11 is different, and the stiffness of the plurality of second spring segments 12 is the same; Change the stiffness of the second spring segment 12, that is, the stiffness of the plurality of second spring segments 12 is different, and the stiffness of the plurality of first spring segments 11 is the same; it is also possible to change the stiffness of the first spring segment 11 and the second spring segment 12 at the same time The stiffness of the plurality of first spring segments 11 is different, the stiffness of the plurality of second spring segments 12 is also different, and the stiffness of the plurality of springs 1 is guaranteed to be different.

In some embodiments, the stiffness of the springs in each row changes in a curve, in other words, the stiffness of a plurality of springs in a spring string 100 changes in a curve, and the stiffness changes of the springs in two adjacent rows are the same, in other words, the phase The stiffness change curves of the springs of two adjacent spring strings 100 are the same, and the stiffness of the springs in the same column are the same. In other words, the stiffness of two springs of the adjacent two spring strings 100 in the same column are the same.

It can be understood that, in the spring core 200, the stiffness of multiple springs in each spring string 100 changes in a curve, the stiffness curve of the multiple spring strings 100 changes the same, and the stiffness of two adjacent springs in the transverse direction is the same. . By setting the spring core 200 into the above structure, it can adapt to the physiological curve of the human body and further improve the comfort of the mattress. Specifically, the stiffness change curve of the plurality of springs 100 in the spring string 100 can be adapted to the S-shaped curve of the human body, so that under the same compression amount, the spring pressure F changes in an S-shaped curve in the longitudinal direction, so that the spring string 100 is longitudinally changed. Soft hardness adapts to the physiological curve of the human body to further improve comfort. In addition, it can be seen from the cross-sectional view of the spring string 100 that the plurality of springs 1 also conform to the S-shaped curve change along the length direction of the cloth bag 2.

In some embodiments, in the spring mattress, when the spring is structured as shown in FIG. 3 and divided into a first spring section 11 and a second spring section 12 connected in sequence, as shown in FIGS. 3, 6 and 8, a plurality of The number of effective turns of the second spring segment 12 of the spring 1 is the same and the middle diameter is the same. The middle diameters of the first spring segments 11 of the spring 1 in each row of the spring core 200 are the same as each other. The number of effective turns of the spring segment 11 changes in a curve. The change curves of the number of effective turns of the first spring segment 1 in two adjacent rows are the same, and the number of effective turns of the first spring segment 11 of the spring 1 in the same row is the same. The middle diameter is the same.

It can be understood that the rows and columns of the spring core 200 are relatively speaking, and the present application is not limited thereto. For example, the rows and columns of the spring core 200 may be the middle diameter of the first spring segment 11 of the spring 1 in each column of the spring core 200. The same as each other, the effective number of turns of the first spring segment 11 of the spring 1 in each column changes in a curve, the effective number of turns of the first spring segment 11 in two adjacent columns changes the same, and the spring 1 in the same row The effective number of turns of the first spring segment 11 is the same and the middle diameter is the same.

In some embodiments, in the spring mattress 200, when the spring is structured as shown in FIG. 4 and divided into a first spring section 11, a second spring section 12, and a third spring section 13, which are connected in sequence, as shown in FIGS. As shown in FIG. 8, the effective number of turns of the first spring section 11 and the third spring section 13 are the same as each other, and the effective number of turns of the second spring section 12 is different from that of the first spring section 11 and the third spring section 13. The effective turns of the first spring section 11 and the third spring section 13 of the spring 1 in each row change in the same curve. In other words, the effective turns of the first spring section 11 of the spring 1 in each row are along the row. The extension direction changes in a curve, and the effective number of turns of the third spring section 13 of the spring 1 in each row also changes in a curve along the extension direction of the row, and the first spring section 11 and the third spring section of the spring 1 in each row The curve of the effective number of turns is the same. The change curve of the effective turns of the first spring segment 11 of the spring 1 in the two adjacent rows is the same. It can be understood that the change curve of the effective turns of the third spring segment 13 of the spring 1 in the two adjacent rows is also the same. The number of effective turns of the first spring segment 11 of the spring 1 in the same row is the same, the number of effective turns of the third spring segment 13 of the spring 1 in the same row is the same, and the number of the second spring segment 12 of the spring 1 in the same row is valid. The number of turns is the same, in other words, the effective number of turns of the spring segments of a plurality of springs 1 in the same row corresponds to the same. It can be understood that, at this time, the median diameters of the springs 1 in the spring core 200 are the same, that is, the median diameters of the plurality of spring segments are the same, and the median diameters of the plurality of springs 1 are also the same.

In addition, it can be understood that the rows and columns of the spring core 200 are relatively speaking, and the present application is not limited thereto. The effective number of turns of the first spring section 11 and the third spring section 13 of the spring 1 in each column are both The same curve changes. The effective curve of the effective number of turns of the first spring segment 11 of the spring 1 in two adjacent columns is the same. The effective number of effective turns of the first spring segment 11 of the spring 1 in the same row is the same. The number of effective turns of the third spring segment 13 of the spring 1 is the same, and the number of effective turns of the second spring segment 12 of the spring 1 in the same row is the same.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “examples”, “specific examples”, or “some examples” and the like means specific features described in conjunction with the embodiments or examples , Structure, material, or characteristic is included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without any contradiction, those skilled in the art may combine and combine different embodiments or examples and features of the different embodiments or examples described in this specification.

In this application, the terms "installation," "connected," "connected," and "fixed" should be broadly understood unless otherwise specified and limited. For example, they can be fixed connections or removable connections. Or can be integrated; it can be mechanical, electrical, or communicable with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction between two elements, Unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless explicitly stated and defined otherwise, the first feature "on" or "down" of the second feature may be the first and second features in direct contact, or the first and second features indirectly through an intermediate medium. contact. Moreover, the first feature is "above", "above", and "above" the second feature. The first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in level than the second feature. The first feature is “below”, “below”, and “below” of the second feature. The first feature may be directly below or obliquely below the second feature, or it may simply indicate that the first feature is less horizontal than the second feature. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application. Those skilled in the art may, within the scope of the present application, understand the above. Embodiments are subject to change, modification, substitution, and modification.

Claims

A spring string characterized by comprising a cloth bag and a plurality of springs, the spring is wound into a spiral shape by a metal wire, the cloth bag has a plurality of bag chambers spaced apart along the length direction of the cloth bag, and a plurality of the The springs are respectively provided in a plurality of the bag chambers, and the spring string is divided into a plurality of sections along the length direction of the cloth bag. The stiffness of the spring in at least one section is different from the stiffness of the springs in the other sections.
The spring string according to claim 1, wherein each of the springs is divided into a plurality of spring segments connected in sequence, and at least two of the plurality of spring segments have different stiffness from each other.
The spring string according to claim 2, wherein at least one of the number of effective turns, the middle diameter, the hardness of the wire, and the diameter of the wire of the at least two sections are different from each other.
The spring string according to claim 2, wherein the number of effective turns of the at least two segments is different, and the median diameters of the at least two segments are the same or different.
The spring string according to claim 2, wherein the at least two segments have different median diameters, and the effective turns of the at least two segments are the same.
The spring string according to any one of claims 2-5, wherein each spring is divided into a first spring section and a second spring section connected to each other, and the stiffness of the first spring section and the first spring section The stiffness of the two spring sections is different.
The spring string of claim 6, wherein the stiffness of the first spring segment of the spring in the at least one section and the stiffness of the first spring segment of the spring in the remaining section different.
The spring string according to claim 7, wherein the stiffness of the first spring segments of the plurality of springs changes in a curve along the length direction of the bag.
The spring string according to claim 7, wherein the stiffnesses of the second spring segments of the plurality of springs are the same as each other.
The spring string according to any one of claims 2-5, wherein each of the springs is divided into a first spring section, a second spring section, and a third spring section which are connected in sequence, and the first spring The stiffness of the segment and the third spring segment are the same, and the stiffness of the second spring segment is different from the stiffness of the first and third spring segments.
The spring string according to claim 10, wherein the effective number of turns of the first and third spring segments is the same, and the effective number of turns of the first and third spring segments is along The length direction of the cloth bag changes in a curve.
The spring string according to any one of claims 1 to 11, wherein the stiffness of a plurality of the springs changes in a curve along the length direction of the cloth bag.
The spring string according to claim 12, wherein one of a plurality of effective spring turns, a middle diameter, a hardness of a wire, and a diameter of the wire changes in a curve along a length direction of the bag.
The spring string according to any one of claims 1 to 11, wherein an effective number of turns of the spring in the at least one section is different from an effective number of turns of the spring in the remaining sections, and the at least The median diameter of the springs in one section is the same as or different from the median diameters of the springs in the remaining sections.
The spring string according to any one of claims 1-11, wherein a diameter of a wire of the spring in the at least one section is different from a diameter of a wire of the spring in the remaining sections.
The spring string according to any one of claims 1 to 11, wherein a hardness of a wire of the spring in the at least one section is different from a hardness of the wire of the spring in the remaining sections.
The spring string according to any one of claims 1 to 11, wherein each spring is conical.
The spring string according to any one of claims 1 to 11, characterized in that the spring in each pocket is wound by a wire.
The spring string according to any one of claims 1 to 11, wherein a plurality of wires of the spring are divided into at least two kinds, and the hardness of the at least two kinds of wires is different from each other.
The spring string according to claim 19, wherein a plurality of wires of the spring are divided into two types.
A spring core characterized by comprising a plurality of spring strings, wherein the spring strings are the spring strings according to any one of claims 1-20, each spring string extending in a longitudinal direction, and a plurality of spring strings Arrange horizontally.
A spring is characterized in that the spring is wound into a spiral shape by a metal wire, the spring is divided into a plurality of spring segments connected in sequence, and at least two of the plurality of spring segments have different stiffnesses from each other.
A spring core is characterized in that it comprises a plurality of springs, the plurality of springs are arranged in a plurality of rows in a lateral direction and a plurality of rows in a longitudinal direction, and the spring core is divided into a plurality of regions, and the springs in at least one region The stiffness of the spring is different from the stiffness of the spring in the remaining areas.
The spring core according to claim 23, wherein the stiffness of the springs in each row changes in a curve, and the changes in the stiffness of the springs in two adjacent rows are the same, and the stiffnesses of the springs in the same column are the same as each other.
The spring core according to claim 24, wherein each of the springs is divided into a plurality of spring segments connected in sequence, and at least two of the plurality of spring segments have different stiffness from each other.
The spring core according to claim 25, wherein at least one of the number of effective turns, the middle diameter, the hardness of the wire, and the diameter of the wire of the at least two sections are different from each other.
The spring core according to claim 26, wherein each spring is divided into a first spring section and a second spring section which are connected in sequence, and the effective number of turns of the second spring section is the same as that of the first spring section. Different, the effective number of turns of the second spring segments of the plurality of springs is the same and the middle diameter is the same, the middle diameters of the first spring segments of the springs in each row are the same as each other, and the first spring segments of the springs in each row are effective The number of turns changes in a curve. The change curves of the effective turns of the first spring segments in two adjacent rows are the same, and the effective number of turns of the first spring segments of the springs in the same row are the same and the middle diameter is the same.
The spring core according to claim 26, wherein each spring is divided into a first spring section, a second spring section, and a third spring section which are connected in sequence, and the first spring section and the third spring section are The effective turns are the same as each other, the effective turns of the second spring segment are different from the effective turns of the first spring segment and the third spring segment,

The effective turns of the first and third spring segments of the springs in each row show the same curve. The effective turns of the first spring segments of the springs in the two adjacent rows have the same change. The number of effective turns of the first spring segment of the spring is the same, the number of effective turns of the third spring segment of the spring in the same row is the same, and the number of effective turns of the second spring segment of the spring in the same row is the same.