WO2021128861A1

WO2021128861A1 - Pocket spring unit

Info

Publication number: WO2021128861A1
Application number: PCT/CN2020/107476
Authority: WO
Inventors: 叶如剑
Original assignee: 浙江华剑智能装备股份有限公司
Priority date: 2019-12-24
Filing date: 2020-08-06
Publication date: 2021-07-01

Abstract

A pocket spring unit, comprising: multiple pocket spring groups (1); and a fabric (2). The multiple pocket spring groups (1) are transversely arranged. Each pocket spring group (1) extends longitudinally. The fabric (2) is provided between adjacent pocket spring groups (1), and is connected to each of the adjacent pocket spring groups (1). The above arrangement enhances the reliability of connection between adjacent pocket spring groups (1), thereby improving the quality of a pocket spring unit.

Description

Pocket spring core

Cross references to related applications

This application requires the priority and rights of Chinese patent applications with application numbers 201911348809.2 and 201922368850.8, and the filing date of December 24, 2019. The entire contents of the above Chinese patent applications are hereby incorporated into this application by reference.

Technical field

The embodiments of the present application relate to the technical field of spring manufacturing, and more specifically, to a pocket spring core.

Background technique

Pocket springs are widely used in the production of pocket spring cores for mattresses and sofas. The pocket springs have multiple springs, and the multiple springs are located in separate pockets of the spring pockets. In the production of pocket spring cores, continuous pocket spring strings are cut into pocket spring strings of a predetermined length, which are then sequentially conveyed by a conveyor and pushed by a pushing mechanism from the conveyor to the core conveying mechanism. The pocketed spring string of the core conveying mechanism is sprayed by a glue gun, so that adjacent pocketed spring strings are bonded together to form a pocketed spring core.

However, the bonding effect between adjacent pocket spring strings is not good, which reduces the quality of the core body of the pocket spring.

Summary of the invention

For this reason, the embodiment of the present application proposes a pocket spring core, which has a relatively high quality.

The pocket spring core body according to the embodiment of the present application includes: a plurality of pocket spring strings, a plurality of the pocket spring strings are arranged in a horizontal arrangement, and each of the pocket spring strings extends in the longitudinal direction; a face cloth, the The surface is arranged between the adjacent pocket spring strings and connected with each of the adjacent pocket spring strings.

According to the pocket spring core of the embodiment of the present application, the adjacent pocket spring strings are connected through the face cloth, which improves the reliability of the connection of the adjacent pocket spring strings and improves the quality of the pocket spring core.

In some embodiments, the face cloth is bonded to each of the adjacent pocket spring strings.

In some embodiments, the face cloth is non-woven fabric or cotton felt.

In some embodiments, each of the pocket spring strings includes a cloth pocket and a plurality of springs, the face cloth is connected to the cloth pocket of the pocket spring string, and the inner part of the cloth pocket of each pocket spring string The cavity is divided into a plurality of independent pockets arranged along the longitudinal direction, and the heights of the pockets of the plurality of pockets of spring strings are the same as each other, and at least part of the pockets of the plurality of pockets of springs The pocket chamber is divided into multiple chambers along the height direction of the pocket chamber, each of the chambers is equipped with the spring, and the heights of the chambers of the same layer of the same cloth bag in the at least part of the pocket spring string are the same. The heights of at least two chambers of the same layer in the at least part of the pocket spring string are different from each other.

In some embodiments, the height of the at least two chambers of the same layer of the at least part of the pocket spring string varies along the transverse direction.

In some embodiments, the height of the cavity of each same layer of the at least part of the pocket spring string varies along the lateral direction.

In some embodiments, the height of the chambers of the same layer changes in a curve along the transverse direction.

In some embodiments, the at least part of the pocket spring string includes a first pocket spring string, and the number of layers of the cavity of the first pocket spring string is equal to that of the remaining pocket springs in the at least part of the pocket spring string. The number of layers of the chambers of the spring string is the same or different.

In some embodiments, the stiffness of springs in at least two layers of the multi-layer chambers of the same bag chamber of the at least part of the bagged spring string is different.

In some embodiments, the springs in the same layer of the at least part of the pocket spring string have the same stiffness.

Description of the drawings

Fig. 1 is a schematic structural diagram of a pocket spring core according to an embodiment of the present application.

Fig. 2 is a top view of a pocket spring core according to an embodiment of the present application.

Fig. 3 is a cross-sectional view of a pocket spring core according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a pocket spring string of a pocket spring core according to an embodiment of the present application.

Reference signs:

Pocket spring string 1, bag 11, spring 12, pocket 13, seam 14, chamber 130, first pocket spring string 101, second pocket spring string 102, third pocket spring string 103, face cloth 2.

Detailed ways

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the present application, but should not be understood as a limitation to 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 orientation or positional relationship indicated by “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” are based on the orientation shown in the drawings or The positional relationship is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the application.

The following describes a pocket spring core according to an embodiment of the present application.

As shown in Figures 1-4, the pocket spring core according to the embodiment of the present application includes a plurality of pocket spring strings 1 and a face cloth 2. The plurality of pocket spring strings 1 are arranged in a horizontal arrangement, and each pocket spring The string 1 extends in the longitudinal direction.

The face cloth 2 is arranged between the adjacent pocket spring strings 1, and the face cloth 2 is connected to each of the adjacent pocket spring strings 1. In other words, the face cloth 2 connects two adjacent pocket spring strings 1. As shown in Figure 1-3, a face cloth 2 is provided between every two adjacent pocket spring strings 1, and the face cloth 2 includes a first side and a second side. The first side of the face cloth 2 is connected to the adjacent pockets. One pocket spring string 1 in the spring string 1 is connected, and the second side surface of the face cloth 2 is connected to another pocket spring string 1 in the adjacent pocket spring string 1.

Further, the face cloth 2 is a non-woven fabric. It is understandable that the present application is not limited to this, for example, the face cloth 2 may also be cotton felt or the like.

The inventor found through research that most of the adjacent pocket spring strings 1 in the pocket spring cores in the related technology are directly connected, but the contact area when adjacent pocket spring strings 1 are in contact is relatively small, resulting in adjacent pocket springs. The connection of the spring string 1 is unreliable, thereby affecting the quality of the pocket spring core. According to the pocket spring core of the embodiment of the present application, the adjacent pocket spring string 1 is connected through the face cloth 2, and the connection between the face cloth 2 and the pocket spring string 1 is relatively reliable, thereby improving the adjacent pocket spring string. The reliability of the connection between 1 improves the quality of the pocket spring core.

In some embodiments, the face cloth 2 is bonded to each of the adjacent pocket spring strings 1. In other words, the face cloth 2 and the pocket spring string 1 are glued together. It can be understood that the application is not limited to this, for example, the face cloth 2 and the pocket spring string 1 can also be welded together.

In some embodiments, each pocket spring string 1 includes a cloth pocket 11 and a plurality of springs 12, and the face cloth 2 is connected to the cloth pocket 11 of the pocket spring string 1. As shown in FIGS. 1 and 4, the pocket spring string 1 includes a cloth bag 11 and a plurality of springs 12 arranged in the inner cavity of the cloth bag 11. The cloth bag 11 of the pocket spring string 1 is connected to the face cloth 2. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless specifically defined otherwise.

Further, the inner cavity of the cloth pocket 11 of each pocket spring string 1 is divided into a plurality of independent pocket chambers 13 arranged in the longitudinal direction, and the height H of the pocket chambers 13 of the plurality of pocket spring strings 1 is the same as each other. In other words, the inner cavity of the cloth bag 11 of each pocket spring string 1 includes a plurality of pocket chambers 13, each pocket chamber 13 has the same height H, and the multiple pocket spring strings 1 have the same height H of the pocket chamber 13. Among them, the height of the bag chamber 13 is the size of the bag chamber 13 in the vertical direction shown in FIG. 4.

At least a part of the pockets 13 of the pocket spring strings 1 in the plurality of pocket spring strings 1 are divided into multiple layers of chambers 130 along the height direction of the pocket chamber 13 (the up-and-down direction shown in FIG. 4), that is, adjacent chambers 130. They are separated by seams 14. A spring 12 is installed in each chamber 130.

It should be noted here that “the pocket chamber 13 of at least part of the pocket spring strings 1 in the plurality of pocket spring strings 1 is divided into a multi-layer chamber 130 along the height direction of the pocket spring string 1” should be understood as the embodiment of the present application In the spring core, only a part of the pocket 13 of the pocket spring string 1 can be divided into multi-layer chambers 130, each of which contains the spring 12, while the remaining pockets 13 of the pocket spring string 1 do not Is divided, the pocket 13 is provided with a spring 12; in the spring core of the embodiment of the present application, all pockets 13 of the pocket spring string 1 can be divided into multi-layer chambers 130, then each chamber 130 The spring 12 is installed inside.

The heights of the cavities 130 of the same layer of the same cloth bag 11 in at least part of the pocket spring string 1 are the same as each other. In other words, in the pocket spring string 1 in which the pocket chamber 13 is divided into multiple layers of chambers 130, the heights of the chambers 130 of the same layer of the same cloth bag 11 are the same.

The heights of at least two cavities 130 of the same layer in at least part of the pocket spring string 1 are different from each other. In other words, in the pocket spring string 1 in which the pocket 13 is divided into multiple layers of chambers 130, there is a seam 14 between the cavity 130 of a certain layer of the pocket spring string 1 and the cavity 130 of the adjacent layer. The seam 14 between the cavity 130 of a certain layer and the cavity 130 of the adjacent layer of another pocketed spring string 1 is not on the same horizontal line, and the adjacent layer of one pocketed spring string 1 and the other Adjacent layers in one pocket spring string 1 are the same layer.

Here, it needs to be understood that since the height H of the pockets 11 of the multiple spring strings 100 is the same, as long as the height of one cavity 110 of the same layer in the multiple spring strings 100 changes in the lateral direction, there will inevitably be another same layer. The height of the chamber 110 varies in the lateral direction.

In addition, it should be noted that “in at least a part of the pocket spring strings 1, the heights of at least two chambers 130 of the same layer of at least two pocket spring strings 1 are different from each other”, and at least a part of the pocket spring strings 1 Taking two pocket spring strings 1 as an example, the pocket chambers 13 of the two pocket spring strings 1 are divided into multi-layer chambers 130, and the heights of at least two chambers 130 of the same layer of the two pocket spring strings 1 Different from each other; take at least part of the pocket spring strings 1 as three pocket spring strings 1 as an example, the pocket chambers 13 of the three pocket spring strings 1 are all divided into multi-layer chambers 130, and the three pocket spring strings 1 The heights of at least two cavities 130 of the same layer of two pocket spring strings 1 are different from each other.

Regarding "the heights of at least two chambers 130 of the same layer are different from each other", take the pocket spring string 1 in which the pocket chamber 13 is divided into multi-layer chambers 130 as two pocket spring strings 1 as an example, because the two pockets The height H of the pocket 13 of the spring string 1 is the same. As long as the two pocket spring strings 1 have a cavity 130 of the same layer that has a different height, there must be another cavity 130 of the same layer that has a different height. For example, two pocket spring strings 1 have different heights. The pockets 13 of each pocketed spring string 1 are divided into two layers of chambers 130, the first chamber and the second chamber, as shown in FIG. 4. In other words, each pocket of the pocketed spring string 1 13 The pocket chamber 13 is divided into a first chamber and a second chamber by a seam 14. The height A1 of the first chamber in the same pocket spring string 1 is the same, and the second chamber in the same pocket spring string 1 The heights B1 of the chambers are the same, that is, the multiple seams 14 of the multiple pockets 13 in the same pocket spring string 1 are on the same horizontal line, and the first chambers 111 of the two pocket spring strings 1 are located on the same layer. The second chamber 112 of the two pocket spring strings 1 is located on the same layer, the height of the first chamber 111 of the two pocket spring strings 1 is different, that is, the seams 14 of the two pocket spring strings 1 are not on the same horizontal line, Therefore, the height of the second chamber of the two pocket spring strings 1 must be different.

For another example, the pockets 13 of the two pocket spring strings 1 are divided into three layers of chambers 130, the first chamber, the second chamber and the third chamber, that is, each pocket in the two pocket spring strings 1 The chamber 13 has two seams 14, a first seam and a second seam. The first seam separates the first chamber and the second chamber, and the second seam separates the second chamber and the third chamber. The chambers are separated, where the height of the first chamber in the same pocket spring string 1 is the same, the height of the second chamber in the same pocket spring string 1 is the same, and the third chamber in the same pocket spring string 1 The height of the chambers is the same, that is, the multiple first seams of multiple pockets 13 in the same pocket spring string 1 are on the same horizontal line, and the multiple second seams of multiple pockets 13 in the same pocket spring string 1 On the same horizontal line, the first chambers of two pocket spring strings 1 are on the same level, the second chambers of two pocket spring strings 1 are on the same level, and the third chamber of two pocket spring strings 1 Located on the same floor, if the height of the first chamber of the two pocket spring strings 1 is different, the height of the third chamber of the two pocket spring strings 1 is the same, and the height of the second chamber of the two pocket spring strings 1 is the same. The heights must be different, that is, the first seams in the two pocket spring strings 1 are not on the same horizontal line, and the second seams in the two pocket spring strings 1 are on the same horizontal line.

According to the spring core of the embodiment of the present application, at least part of the pocket 13 in the pocket spring string 1 in the spring core is divided into a multi-layer chamber 130, and the same layer in the same pocket spring string 1 The heights of the cavities 130 are set to be the same, and the heights of at least two cavities 130 of the same layer of at least two different pocket spring strings 1 are set to be different, so that the softness of different regions of the pocket spring cores is different, While improving the comfort, the structure and processing technology of the pocket spring core are relatively simple, which reduces the cost.

In some specific embodiments, as shown in FIG. 3, the height of at least two cavities 130 of the same layer of at least part of the pocket spring string 1 changes along the lateral direction. Taking at least part of the pocket spring string 1 divided into three layers as an example, the pocket room 13 includes a first chamber and a second chamber, wherein at least part of the first chamber of the pocket spring string 1 is located on the same layer , At least part of the second chamber of the pocket spring string 1 is located on the same layer, at least a part of the third chamber of the pocket spring string 1 is located on the same layer, and at least part of the first chamber of the pocket spring string 1 has a height along the transverse direction The height of the second chamber of at least part of the pocket spring string 1 also changes in the lateral direction.

Further, the height of the cavity 130 of each of the same layer of at least part of the pocket spring string 1 changes in the lateral direction. Similarly, taking at least part of the pockets 13 of the pocket spring string 1 divided into three layers as an example, the height of at least part of the first chamber of the pocket spring string 1 changes in the transverse direction, and at least part of the second chamber of the pocket spring string 1 The height of is also changed in the transverse direction, and the height of at least part of the third chamber of the pocket spring string 1 also changes in the transverse direction. It is understandable that the present application is not limited to this. For example, the height of at least part of the first chamber of the pocket spring string 1 changes laterally, and the height of at least part of the second chamber of the pocket spring string 1 also changes laterally. However, the height of the third chamber of at least part of the pocket spring string 1 remains unchanged.

Furthermore, the height of the chamber 130 of the same layer changes in a curve along the lateral direction, for example, changes in a substantially S-shaped curve along the lateral direction, so as to meet the needs of the human body and improve comfort.

For example, as shown in FIG. 3, the multiple pocket spring strings 1 in the pocket spring core include a first pocket spring string 101, a second pocket spring string 102, a third pocket spring string 103... the nth pocket There are two layers of chambers 130 in the pocket 13 of each pocket spring string 1, the first chamber and the second chamber, as shown in Fig. 4. In other words, each pocket spring string 1 Each of the pockets 13 is divided into a first chamber and a second chamber by a seam 14, that is, the pocket 13 of the first pocket spring string 101 is divided into the first chamber by the first seam And the second chamber, the pocket chamber 13 of the second pocket spring string 102 is divided into a first chamber and a second chamber by a second seam, and the pocket chamber 13 of the third pocket spring string 103 is separated by a third seam Separate into a first chamber and a second chamber... the pocket chamber 13 of the n-th pocket spring string is divided into a first chamber and a second chamber by the n-th seam.

Among them, the first chamber of the first pocket spring string 101, the first chamber of the second pocket spring string 102, the first chamber of the third pocket spring string... and the first chamber of the nth pocket spring string The chambers are all located on the same floor and the height A1 changes in a substantially S-shaped curve along the transverse direction. The second chamber of the first pocket spring string 101, the second chamber of the second pocket spring string 102, and the third pocket spring string The second chamber of 103... and the second chamber of the n-th pocketed spring string are both located on the same layer, and the height B1 changes in a substantially S-shaped curve along the transverse direction. In other words, the first seam of the first pocket spring string 101, the second seam of the second pocket spring string 102, the third seam of the third pocket spring string 103, ... the nth pocket spring string The n-th seam changes in a substantially S-shaped curve along the transverse direction to meet the needs of the human body and improve comfort.

In some embodiments, at least part of the pocket spring string 1 includes the first pocket spring string 101, and the number of layers of the cavity 130 of the first pocket spring string 101 is different from that of the remaining pocket springs in at least part of the pocket spring string 1 The number of layers of the chamber 130 of the spring string 1.

For example, at least part of the pocket spring string 1 includes the pocket spring string 1 in which the pocket 13 is divided into two layers of chambers 130, and also includes the pocket spring string 1 in which the pocket 13 is divided into three layers of chambers 130.

It can be understood that the present application is not limited to this. For example, in other optional embodiments, the number of layers of the cavity 130 of the first pocket spring string 101 is equal to that of at least part of the remaining pocket springs in the pocket spring string 1. The number of layers of the chamber 130 of the spring string 1 is the same. In other words, at least part of the pocket spring strings 1 have the same number of layers in the chamber 130. For example, at least part of the pocket spring string 1 includes only the pocket spring string 1 in which the pocket 13 is divided into two layers of chambers 130, or only includes the pocket spring string 1 in which the pocket 13 is divided into three layers of chambers 130. .

In some embodiments, the stiffnesses of the springs 12 in at least two layers of the chambers 130 in the multi-layer chamber 130 of the same bag chamber 13 of at least part of the pocket spring string 1 are different. In other words, in the same pocket 13 in the same pocketed spring string 1, at least two of the multi-layer chambers 130 have different stiffnesses in the springs 12 in the chambers 130. For example, in some specific embodiments, the same pocket springs The multiple pockets 13 in the spring string 1 are divided into two layers of chambers 130. The springs 12 in the same layer of chambers 130 in the multiple pockets 13 have the same stiffness, and the two layers of chambers 130 in the same pocket 13 The stiffness of the inner spring 12 is different. For another example, the pocket chamber 13 in the same pocket spring string 1 is divided into three layers of chambers 130, and in the three layers of chambers 130, at least two layers of chambers 130 have different springs 12 in stiffness.

In some embodiments, at least part of the pocket spring string 1 in the multi-layer chamber 130 in the same pocket 13 has the effective number of turns, the pitch diameter, the hardness of the wire and the spring 12 in at least two layers of the chamber 130 in the same pocket 13 At least one of the diameters of the metal wires is different from each other. Since the effective number of turns of the spring 12, the median diameter, the hardness of the wire made of the spring 12, and the diameter of the wire all affect the stiffness of the spring, at least one of the above parameters is set to be different from each other to make the stiffness different .

In some embodiments, at least part of the springs 12 in the same layer of the pocket spring string 1 have the same stiffness. At least part of the pocket spring strings 1 have the same stiffnesses of the springs 12 in the chambers 130 on the same layer. For example, as shown in Figure 4, the stiffness of the spring 12 in the first chamber of the first pocket spring string 101, the stiffness of the spring 12 in the first chamber of the second pocket spring string 102, and the stiffness of the spring 12 in the first cavity of the second pocket spring string 102, and the third pocket spring string The stiffness of the spring 12 in the first chamber of 103... and the stiffness of the spring 12 in the first chamber of the n-th pocket spring string are the same; the stiffness of the spring 12 in the second chamber of the first pocket spring string 101 , The stiffness of the spring 12 in the second chamber of the second pocket spring string 102, the stiffness of the spring 12 in the second chamber of the third pocket spring string 103... and the second chamber of the nth pocket spring string The stiffness of the springs 12 are the same.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , The structure, materials, or characteristics are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradicting each other.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction relationship between two components, Unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may be indirectly through an intermediary. contact. Moreover, the "above", "above" and "above" of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than the second feature. The “below”, “below” and “below” of the second feature of the first feature may mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature. Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application. A person of ordinary skill in the art can comment on the foregoing within the scope of the present application. The embodiment undergoes changes, modifications, substitutions, and modifications.

Claims

A pocket spring core, which is characterized in that it comprises:

A plurality of pocket spring strings, the plurality of pocket spring strings are arranged horizontally, and each of the pocket spring strings extends in the longitudinal direction;

The face cloth, the face is arranged between the adjacent pocket spring strings and connected with each of the adjacent pocket spring strings.
The pocket spring core according to claim 1, wherein the face cloth is bonded to each of the adjacent pocket spring strings.
The pocket spring core according to claim 1 or 2, wherein the face cloth is non-woven fabric or cotton felt.
The pocket spring core according to any one of claims 1 to 3, wherein each of the pocket spring strings includes a cloth pocket and a plurality of springs, and the face cloth and the pocket spring string The cloth bags are connected, the inner cavity of the cloth bag of each bag spring string is divided into a plurality of independent pockets arranged along the longitudinal direction, and the heights of the pockets of the multiple pocket spring strings are the same as each other , The pockets of at least part of the pockets of the plurality of pockets of springs are divided into multi-layer chambers along the height direction of the pockets, each of the chambers is equipped with the spring, and the at least part of the pockets The heights of the cavities of the same layer of the same cloth bag in the spring string are the same, and the heights of the cavities of the same layer in at least two of the at least part of the pocket spring string are different from each other.
The pocket spring core according to claim 4, wherein the height of the at least two chambers of the same layer of the at least part of the pocket spring string varies along the transverse direction.
The pocket spring core according to claim 4, wherein the height of the cavity of each same layer of the at least part of the pocket spring string changes along the transverse direction.
The pocket spring core according to claim 6, wherein the height of the cavity of the same layer changes in a curve along the transverse direction.
The pocket spring core according to any one of claims 4-7, wherein the at least part of the pocket spring string comprises a first pocket spring string, and the cavity of the first pocket spring string The number of layers is the same as or different from the number of layers of the cavities of the remaining pocket spring strings in the at least part of the pocket spring strings.
The pocket spring core according to any one of claims 4-8, wherein the stiffness of springs in at least two layers of the multi-layer chambers of the same pocket of the at least part of the pocket spring string different.
The pocket spring core according to any one of claims 4-9, wherein the springs in the same layer of the at least part of the pocket spring string have the same stiffness.