WO1999034712A1

WO1999034712A1 - Double spring mattress and cushion

Info

Publication number: WO1999034712A1
Application number: PCT/CN1999/000004
Authority: WO
Inventors: Xiren Fu
Original assignee: Xiren Fu
Priority date: 1998-01-09
Filing date: 1999-01-08
Publication date: 1999-07-15
Also published as: CN1231147A

Abstract

A double spring mattress is made out of two spiral compression springs that have different free height and different elastic modulus by way of combination. The mattress has two stress layers that are independent of each other and are not implicative of each other. When a person lies on the mattress, each part of the person's body will keep close contact with the mattress, the spine of the person's body will keep straight, and it is easy for the person to turn over or change prone position. The mattress of this invention solves the problem which is the local stress or the curving of spine due to the fact that the prior spring mattress is too hard or too soft. The structure of the spring mattress is also adapted to the spring cushion.

Description

Compound spring mattress and seat cushion Technical field

The invention relates to a spring mattress for people to sleep on and a spring seat cushion for people to sit and lean on. In particular, a new double-helix structure spring mattress and seat cushion are formed by using two specific combinations of helical compression springs with different free heights and different elastic moduli.

Background technique

The usual spring mattress is to use the same specification in a mattress, helical compression springs with the same free height and elastic modulus, arrange them, and tie the upper and lower ends; or use the same specification Helical compression springs are individually bagged, aligned and stitched together, then covered with upholstery and fabric. Doing this makes common spring pads all have only one stress layer to carry the human body, because the upper end faces of the helical compression springs of the same height are all in the same plane in a free state. As a result, or because the elastic modulus of the stress layer is too large, the mattress is too hard, and the stress layer cannot be changed along the concave-convex surface of various parts of the human body. It is not conducive to the blood circulation of people during sleep; it also lacks comfort. Therefore, people cannot obtain comfortable, hygienic, and healthy sleep; or because the elastic modulus of the force-bearing layer is too small, the mattress is too soft. When people lie on it, the spine is bent, and it is not easy to turn over or change the lying position. Both situations are detrimental to a person's sleep hygiene and physical health.

Contents of the invention

In order to overcome the above-mentioned shortcomings of ordinary spring mattresses, the present invention uses a specific combination of two specifications of helical compression springs with different free heights and different elastic moduli in the same mattress, and through several different construction methods. A new type of spring mattress with a double-helix structure and two stress-bearing layers that are not at the same height. The first stress-bearing layer of this new type of spring mattress is a soft landing surface (composed of sub-springs with a small elastic modulus), which can change randomly according to the concave-convex surface of various parts of the human body when a person lies on it. The part that closely fits the curved surface of the human body distributes and evens the pressure; the second force-bearing layer is a hard landing surface (composed of a female spring with a large elastic modulus), which can carry the rest of the soft landing surface after it fits the curved surface of the human body Weight, while maintaining the straightness of the human spine, and allowing people to turn over or change the prone position with ease. This overcomes the various shortcomings of the usual spring mattress. This structure of the present invention can also be used to make seat cushions, and can also receive good results.

Specifically, the present invention is composed of helical compression springs, which is a compound composite spring mattress, which is characterized in that This kind of spring mattress is composed of two kinds of helical compression springs with different free heights and different elastic modulus, that is, the child spring A and the female spring B are arranged and combined.

In the above-mentioned compound spring mattress of the present invention, the upper end surfaces of the child springs A and the female springs B arranged and combined in a free state are respectively located in two parallel planes. At the same time, it is preferable that the upper end surface of the child spring A is 30-150 mm higher than the upper end surface of the female spring B.

In the above-mentioned compound spring mattress of the present invention, the lower ends of the child spring A and the mother spring B are fixed together, but the upper ends of the child spring A are independent and not intertwined with each other.

In the above-mentioned compound spring mattress of the present invention, the lower ends of the child spring A and the mother spring B may not be connected.

According to a similar structure, the composite spring seat cushion of the present invention can also be manufactured. This spring seat cushion is composed of two kinds of helical compression springs with different free heights and different elastic moduli, that is, the child spring A and the female spring B are arranged and combined. made.

In the above-mentioned composite sub-spring seat pad of the present invention, the upper end surfaces of the sub-spring A and the sub-spring B arranged and combined in a free state are respectively located in two parallel planes. Simultaneously, preferably the upper end surface of child spring A is 30-150 circles higher than the upper end surface of female spring B.

In the above-mentioned composite sub-female spring seat cushion of the present invention, the lower ends of the sub-spring A and the female spring B are fixed together, but the upper ends of the sub-spring A are independent and not intertwined with each other.

In the above-mentioned compound spring seat pad of the present invention, the lower ends of the child spring A and the mother spring B may not be connected. At this time, the child spring A is sleeved in the mother spring B, and the two ends of the child spring A are independent and not involved with each other.

The technology of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Figure overview

1A, B and C are schematic structural diagrams of a form of child spring A, mother spring B and compound child spring C, respectively. 2A, B and C are structural schematic diagrams of another form of child spring A, mother spring B and compound child spring C, respectively. Fig. 3 is a schematic structural view of the compound spring mattress of the present invention.

Embodiments of the present invention

The present invention can be realized in the following several ways.

According to Figure 1, two kinds of helical compression springs with different free heights and elastic modulus are made, namely sub-spring A and female spring B. The bottoms of sub-spring A and female spring B are two concentric circles that can fit together ring, and the outer diameter of the ring at the bottom of the child spring A is equal to the inner diameter of the bottom ring of the female spring B. The free height of the child spring A is 30 ~ 150ram larger than the free height of the female spring B, and the more commonly used ones are 30 - 120mm. Fit the child spring A into the female spring B so that the bottom end is flush and the center axis The wires are overlapped, and then the bottom rings of the two are twisted to form a double-helix composite spring c, as shown in Figure 1. In order to prevent the child spring A and the mother spring B from rubbing against each other when stretching and stretching, the child spring A should be made into a dumbbell shape, while the mother spring B should be made into a straight shape, and then according to the plane size of the mattress, this compound spring should be arranged in the usual way. The mother and child springs C are arranged, and the upper and lower ends of the mother spring B are connected into a whole with a series of extension springs. The blunt edge of the mattress is connected with a steel wire frame to reinforce the surrounding mother springs. In this way, the remaining parts of each child spring A are independent except for the bottom end, and are not connected with each other or with the female spring B. As shown in Figure 3.

In the freely stretched state, the upper end faces of the arranged child springs A are located in one plane, forming the first force-bearing layer; while the upper end faces of the mother springs B are located in another parallel and slightly lower plane, forming the second force-bearing layer. Second stress layer.

By covering the cushion layer, lining and fabric, the formed mattress has two stress-bearing layers with different functions. When the human body is lying on it, due to the independence of the child spring A, its strain does not implicate other springs, nor is it constrained by other springs. Thereby, it is possible to completely freely and randomly conform to the concavo-convex expansion and contraction of each part of the human body, so that the first force-bearing layer is completely fitted to the body shape of the person, and the pressure is evenly distributed to realize the soft landing function. The remaining weight of the human body is then carried on the second force-bearing layer formed on the upper end surface of the female spring B tied together. Due to the integrity and greater hardness of the second force-bearing layer, the hard landing of the human body is realized, the straightness of the spine of the person is kept, and the person can easily turn over to change the lying position.

It is also possible to arrange and tie the female springs B first to form a whole. Then put the child springs A into small burlap bags individually, and then put the bagged child springs A into the female spring B, so that the lower end of the child spring A is flush with the lower end of the female spring B by its own weight. As shown in Figure 2. Since the free height of the child spring A is greater than the free height of the female spring B, two stress layers with different functions will naturally be formed to realize the above-mentioned soft landing function and hard landing function respectively. The advantage of this is that since the upper and lower ends of the child spring A are not connected to the female spring B, as long as the mattress is turned over, two stress layers with the same function can be formed on the other side. can be used.

The present invention can also be realized in the following manner:

First arrange the female reeds B according to the plane size of the mattress in the usual way, tie the upper and lower ends, and reinforce the upper and lower edges of the blunt edge of the mattress with a steel wire frame to form a female reed. In addition, arrange the child springs A according to the same size, and tie the lower end to form a whole. The lower end of the periphery is reinforced with a steel wire frame, and the upper part is in a free state without being involved with each other to form a sub-reed. Then stack the sub-reeds on the mother reed In the middle of the two reeds, a layer of elastic and wear-resistant materials such as brown silk is set as the upper layer. At the same time, the steel wire frame of the child reed is twisted with the adjacent steel wire frame on the female reed. In this way, a new spring mattress main force structure with two force-bearing layers, respectively realizing soft landing and hard landing functions can be obtained. The advantage of this is that the arrangement of the child springs A is not restricted by the mother spring B , can be arranged more densely, so that the stress points on the soft landing surface are denser, and the randomness of fitting the human body is better. In the above three methods, by adjusting the elastic modulus of the child spring A and the mother spring B, the elastic modulus of the child spring A is smaller than the elastic modulus of the mother spring B, so as to obtain two stressed layers suitable for different softness and hardness requirements. Generally, the more suitable elastic modulus of child spring A is 1/5-4/5 of the elastic modulus of parent spring B. After the main body of the mattress structure is built according to the above-mentioned structure, according to the usual practice, the linen, cushion material, interlining and fabric are overlocked. The steel wire frame set on the blunt side is tied with a fine hemp rope to prevent the coil spring from tilting when covering.

The neutron spring and the female spring of the present invention can be made of ordinary carbon spring steel or manganese spring steel, and it is better to use carbon spring steel from a practical point of view. The elastic modulus of the child spring and the female spring can be adjusted by changing the free height of the helical compression spring, the diameter of the spring steel wire and the number of working turns. Generally, the free height of the female spring is 70-260mm, and that of the child spring is 100-400mm. ; The wire diameter of the female spring is 2. 0-4. 0mm, and that of the child spring is 1. 5-3. 5

Applying the mattress made by the present invention can allow people to obtain more comfortable and hygienic sleep, which is beneficial to people's health.

The usual seat cushions are mostly covered with artificial foam as a cushion layer, and the elastic modulus is not easy to adjust according to needs; the air permeability is not good, and people will feel stuffy and sweaty after sitting for a long time; It is easy to age and lose elasticity; at the same time, this kind of waste will cause disadvantages such as pollution to the human environment. The above-mentioned scheme is also suitable for making seat cushions, so as to overcome these disadvantages and make people obtain more comfortable seats.

Industrial applicability

Example:

According to the accompanying drawing 1, use Φ 3.2mm70# carbon spring copper wire to wind the female spring B with a free height of 150mm and the number of working turns to 5, use Φ 2.5 70# carbon spring steel wire to wind the free height to 200mm , the child spring A with 7 working turns. The outer diameter of the upper and lower rings of the mother spring B is 80mm, and the helix shrinks to a straight shape with an outer diameter of 72mm; the outer diameter of the upper ring of the child spring A is 62mm, and the outer diameter of the lower ring is 70mm, and the helix gradually shrinks to the middle waist ~ 40mm. Fit the child spring A into the mother spring B, with the lower ends flush, and twist the rings at the lower ends of the two with iron clips to make a compound child spring C. Then arrange it according to Figure 3. Arrange 18 closely along the width of the mattress horizontally, and arrange 18 rows vertically along the length of the mattress, with a row spacing of 25mm. The upper and lower ends of the adjacent female springs in each mold row are twisted with iron clamps and 4 string extension springs wound with Φ 1.6mm carbon spring steel wires are connected up and down along the two sides, and each longitudinal female spring is also connected in series The strips are sprung and connected. Lay two Φ 3.5mm steel wire frames up and down around the blunt edge of the mattress, and twist them on the outer sides of the upper and lower ends of the female spring along the edge. Then use the fine hemp rope to press the "herringbone" pattern to tie the mattress A The ring at the upper end is locked with the steel wire frame at the upper part of the blunt edge. Then string the tension springs along the steel wire frame. In this way, the main structure of the mattress is made. Cut obliquely at a 45° angle along the latitude and longitude to facilitate the flexibility of the mattress surface. Others after bedding brown silk Layers of village cloth are also cut in this manner. The fabric is knitted fabric with good stretchability, and a layer of 10mm thick latex sponge or expanded cotton is lined under it, which is quilted with the fabric to make the surface smoother and make the mattress more comfortable to use.

Claims

1. A composite spring mattress composed of helical compression springs, characterized in that the spring mattress is composed of two helical compression springs with different free heights and different moduli of elasticity, i.e. child spring A and The female spring B is arranged and combined.

2. The compound spring mattress according to claim 1, characterized in that in a free state, the upper end surfaces of the arranged and combined child springs A and female springs B are respectively located in two parallel planes.

3. The spring mattress according to claim 2, characterized in that in the free state, the upper end surface of the child spring A is 30-150° higher than the upper end surface of the female spring B

4. The compound spring mattress according to claim 12 or 3, characterized in that the upper ends of the child springs A are independent and not intertwined with each other.

5. The compound spring mattress according to claim 1, 2, 3 or 4, characterized in that the child spring A is set in the mother spring B, and the two ends of the child spring A are independent and not intertwined with each other.

6. A composite spring seat cushion composed of helical compression springs, characterized in that the spring seat cushion is composed of two helical compression springs with different free heights and different elastic moduli, namely the child spring A and The female spring B is arranged and combined.

7. The compound spring seat pad according to claim 5, characterized in that in the free state, the upper end surfaces of the arranged and combined subspring A and female spring B are respectively located in two parallel planes,

8. The compound spring seat cushion according to claim 6, characterized in that in the free state, the upper end surface of the child spring A is 30-150mm higher than the upper end surface of the female spring B

9. The compound sub-spring seat cushion according to claim 56 or 7, wherein the upper ends of the sub-springs A are independent and not intertwined with each other.

10. According to claim 6, 7, 8 or 9, the composite spring seat cushion of two and two mothers is characterized in that the child spring A is set in the mother spring B, and the two ends of the child spring A are independent and not involved with each other.