nursing mattress

Abstract

An object of the present invention is to smoothly bend a nursing bed having a three-dimensional network structure formed of a thermoplastic resin in multiple stages in response to a complicated motion of the bed body or a specific motion of a user. The three-dimensional network structure (101) has structural units (1a) repeatedly arranged sparsely along the extrusion direction (Y) 1 ~1a 9 ) and compact building blocks (1b 1 ~1b 8 ) of the first three-dimensional density structure (1), in the first three-dimensional density structure (1), the sparse constituent unit (1a) 1 ~1a 9 ) of the bulk density δ 1 It is 0.01 - 0.08g / cm 3 , a compact building block (1b 1 ~1b 8 ) of the bulk density δ 2 It is 0.03 - 0.10g / cm 3 , a compact building block (1b 1 ~1b 8 ) relative to the sparse building block (1a 1 ~1a 9 ), the proportion of the bulk density δ 2 / δ 1 is 1.01 to 5, the sparse constituent unit (1a 1 ~1a 9 ) of length A 1 is 1 to 50 cm, a compact unit (1b 1 ~1b 8 ) of length A 2 is 3 to 60 cm, a compact unit (1b 1 ~1b 8 ) relative to the sparse building block (1a 1 ~1a 9 ) in proportion to the length of A 2 / A 1 is 0.1 to 10.

Description

technical field [0001] The present invention relates to a nursing mattress provided with a three-dimensional mesh structure. Background technique [0002] As for the motor-driven nursing bed, the technological development has continued to advance in recent years, and nursing beds with some or all of the three functions of back raising function, height adjustment function, and knee raising function are mainly sold. In addition, nursing beds are driven by motors, and there are single-motor beds, double-motor beds, three-motor beds, and four-motor beds, etc., and their functions vary depending on the number of motors mounted on the bed. Recently, nursing beds that have a large number of motors and can be deformed in multiple stages have been strongly desired. [0003] Inventions of Patent Documents 1 to 4 have been proposed regarding three-dimensional structures used in such nursing beds. [0004] The invention shown in Patent Document 1 aims to achieve a seamless structure o...

AI Technical Summary

Problems solved by technology

In Patent Documents 2 to 4, the performance of conforming to the complicated movement of the bed body and the performance of smoothly bending the mattress in multiple stages is not sufficient, and there is a gap between the driving base plate of the nursing bed and the mattress, and there is follow-up The problem

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