JP3057993U - mattress - Google Patents

Abstract

(57) [Problem] To provide a mattress excellent in cushioning properties, pressure dispersibility and horizontal stability. SOLUTION: A cylindrical spring 21 having a relatively small diameter.
And a lower spring layer 3 having a large number of relatively large diameter cylindrical springs 31. A net-like elastic member 4 is provided between the layers. The layers were laminated via the nonwoven fabric sheet 5 and the periphery thereof was covered with a side ground 8 or the like to be integrated.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a mattress.

[0002]

[Prior art]

 In conventional spring mattresses, in order for each body part to be supported in a state where pressure is dispersed by elastic deformation of the spring according to the shape of each part, the diameter of each spring constituting the mattress is relatively small. In addition, it is preferable that they can be deformed independently of each other to some extent.

In order to improve the cushioning property of such a mattress, it is conceivable to increase the thickness of the mattress. However, if the height of each spring is increased and the aspect ratio is increased, the height in the horizontal direction is increased. It can lack stability.

[0004]

[Problems to be solved by the invention]

 In view of the above points of the conventional spring mattress, the present invention has been made to provide a mattress which is excellent in cushioning property, pressure dispersion property and stability in the horizontal direction.

[0005]

[Means for Solving the Problems]

 An upper spring layer formed by arranging a large number of relatively small-diameter cylindrical springs and a lower spring layer formed by arranging a large number of relatively large-diameter cylindrical springs are netted between these layers. The flat elastic member and the nonwoven fabric sheet were laminated via a nonwoven fabric sheet, and the periphery thereof was covered with a side ground or the like to be integrated.

[0006]

[Embodiment of the invention]

 1 and 2 show a mattress 1 according to an embodiment of the present invention. In the figure, a mattress 1 is composed of an upper spring layer 2 and a lower spring layer 3 which are laminated with a net-like planar elastic member 4 and a nonwoven fabric sheet 5 therebetween, and a spring layer having two upper and lower layers. And elastic layers 7, 7 such as a web, a cross-section material, a breathable sheet, etc. are appropriately stretched on the frame bodies 6, 6 arranged on the upper and lower surfaces thereof. She is wearing one.

The upper and lower spring layers 2 and 3 respectively house springs 21 and 31 in spring holding members 23 and 33 each having a shape in which a number of bags 22 and 32 are connected in a strip shape in the lateral direction. The spring holding members 23 and 33 are formed by folding the spring holding members 23 and 33 in a 99-fold form. The spring holding members 23 and 33 are formed into a large number of bags 22 and 23 by joining two belt-shaped members made of a flexible sheet material at appropriate intervals by appropriate means such as heat fusion sewing. Is preferred.

The springs 21 and 31 of the upper and lower spring layers 2 and 3 have different diameters, and the spring carrier 21 of the upper spring layer 2 has a relatively small diameter. The spring carrier 31 has a relatively large diameter, and the sizes of the bag bodies 22 and 32 of the spring holding members 23 and 33 are correspondingly different.

In addition, each of the springs 21 and 31 can be a barrel type having an expanded central portion, a narrowed type at the central portion, or the like, in addition to a cylindrical coil spring as shown in the illustrated example. A spring made of an appropriate material such as metal or resin can be used.

As shown in FIG. 3, the net-shaped plane elastic member 4 is preferably formed by arranging linear resin materials 41 and 42 in a lattice pattern and welding them at intersections 43 thereof. The form is not limited to this.

In the mattress 1 configured as described above, since the upper and lower two-stage spring layers 2 and 3 are provided, the heights of the springs 21 and 31 themselves in each layer can be kept low, and the cushioning property as a whole can be reduced. And the stability in the horizontal direction is good. Also, by reducing the diameter of the upper spring unit 21, the body pressure is widely dispersed by elastic deformation of each spring unit 21 corresponding to the shape of each part of the body, and a good supporting state is obtained. Since the side spring unit 31 has a large diameter, the stability in the horizontal direction is further improved, and the manufacturing cost is advantageous.

The upper and lower spring layers 2 and 3 have different net diameters of the springs 21 and 31 in the upper and lower stages due to the net-shaped plane elastic members 4 provided between the upper and lower spring layers 2 and 3, and the center position and the center-to-center pitch do not match. Even in this case, it is possible to prevent a situation in which the small-diameter spring unit 21 is depressed between the large-diameter spring units 31 or in the center, or the support state becomes unstable due to a difference in the load center.

Further, the nonwoven fabric sheet 5 prevents the net-shaped planar elastic member 4 and the upper-stage side spring unit 21 from shifting in the horizontal direction, and together with the net-shaped planar elastic member 4, the upper and lower spring unit alone It also has a function as a shock absorbing material that absorbs the elastic deformation of 21 and 31 and the variation in load.

In the above-described embodiment, the case where each of the springs 21 and 31 is held by the belt-shaped spring holding members 23 and 33 has been described. , (32), the upper ends of the upper spring units 21 and the lower ends of the lower spring units 31 are connected to each other and connected to the frame bodies 6 and 6. The spring may be fixed in such a form. Also, the thickness (height) of the spring layers 2 and 3 in each of the upper and lower stages may be different from each other, and it is also within the scope of the present invention to use a single spring having a different diameter in each stage. Is possible.

[0015]

[Effect of the invention]

 Since the mattress of the present invention is configured as described above, the thickness of the mattress is increased and the cushioning is improved, but the pressure distribution performance is achieved by the small diameter spring of the upper spring layer, and the large diameter spring of the lower spring layer is used. Due to the stability in the horizontal direction, a mattress with excellent usability can be constructed at low cost, and due to the net-shaped flat member, springs with different diameters may collapse or the support state may become unstable. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a mattress according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing the mattress according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a net-shaped planar elastic member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mattress 2 Upper spring layer 3 Lower spring layer 4 Net-like plane elastic member 5 Nonwoven fabric sheet 8 Side ground 21,31 Spring only 22,32 Bag 23,33 Spring holding member

Claims (2)

[Utility model registration claims] 1. An upper-side spring layer in which a number of relatively small-diameter cylindrical springs are juxtaposed, and a lower-stage spring layer in which a number of relatively large-diameter cylindrical springs are juxtaposed. A mattress which is laminated between these layers via a net-like planar elastic member, and the periphery thereof is covered with a side ground or the like to be integrated. 2. The mattress according to claim 1, wherein a nonwoven fabric sheet is interposed between the upper spring layer and the lower spring layer together with a net-like planar member.