High Tension Coil Spring Structure for Bed Mattress Having Means for Preventing Friction Noise

Abstract

A high tension coil spring structure for a bed mattress includes spring bodies and exposed wiring portions which absorb an external load. Diameter-increasing portions (A) are formed on at least one of upper and / or lower end wiring portions (14, 14') of body wiring portions (12), and provide spaces in which upper and / or lower exposure start wiring portions (16-5, 16-5') move upward and downward. Rigid support ends (18) are formed on at least one of the body wiring portions (12) and upper and lower exposed wiring portions (16, 16'), and absorb a compressive load. The diameter-increasing portions and the rigid ends of the coil spring structure fundamentally prevent noise caused by friction between the exposed wiring portions and surrounding wiring portions when the exposed wiring portions are compressed and significantly increase the elasticity of the exposed wiring portions.

Description

[0001] Cross reference to related applications [0002] This application claims Korean Patent Application 10-2013-113990 filed on September 25, 2013, Korean Patent Application 10-2013-115999 filed on September 30, 2013 (which claims Korean Patent Application 10 filed on September 25, 2013 -2013-113990) and Korean Patent Application No. 10-2013-136458 filed on November 11, 2013 (which claims Korean Patent Application No. 10-2013-113990 on September 25, 2013 and filed on September 30, 2013 priority of Korean Patent Application No. 10-2013-115999), the entire contents of which are incorporated herein by this reference for all purposes. technical field [0003] The present invention relates to high tension coil spring structures for mattresses having exposed coil portions formed on the coil spring and cooperating with the spring body to absorb applied loads; and more particularly to mattresses having The high-tension coil spring structure of the device for anti-friction noise can...

AI Technical Summary

Problems solved by technology

[0013] Third, when a load is applied to the mattress, the exposed winding portion abuts the end winding portion when compressed, limiting the elasticity of the exposed winding portion

[0015] Although the coil spring shown in FIG. 3A prevents the friction noise between the main body spring 10 and the exposed wire spring 20 to a certain extent by using the anti-contact end 30, the coil spring cannot completely prevent the friction noise because when the exposed wire spring 20 moves downward beyond the height of the anti-contact end 30 when the exposed wire spring 20 contacts the main body spring 10

[0016] In addition, although the coil spring shown in FIG. 3A focuses on the anti-contact end 30 against frictional noise, it has the disadvantage that the amount of elasticity for the exposed wire spring 20 to move up and down is limited because the number of turns of the exposed wire spring 20 is small.

[0018] Although the coil spring shown in FIG. 3B prevents friction noise between the main body spring 10 and the exposed wire spring 20 to a certain extent using the anti-contact / stiffness-enhancing ends 30 and 32, the coil spring cannot completely prevent friction noise, Because the exposed wire spring 20 contacts the main body spring 10 when the exposed wire spring 20 moves downward beyond the height of the anti-contact / stiffness enhanced ends 30 and 32

[0019] In addition, although the coil spring shown in FIG. 3B focuses on the anti-contact / stiffness-increased ends 30 and 32 for preventing frictional noise, it has a disadvantage that the exposed wire spring 20 is limited due to the small number of turns of the exposed wire spring 20. The amount of flex used to move up and down

[0021] Although the coil spring shown in FIG. 3C prevents friction noise between the main body portion 115a and the exposed winding portion 115b to some extent using the concave portions 60 and 70, the coil spring cannot completely prevent friction noise because when The exposed winding portion 115b moves downward beyond the height of the concave portions 60 and 70 when the exposed winding portion 115b contacts the main body portion 115a

[0022] In addition, although the coil spring shown in FIG. 3C focuses on the concave portions 30 and 70 for anti-friction noise, the disadvantage is that the use of the exposed winding portion 115b for up and down is limited because the number of turns of the exposed winding portion 115b is small. amount of elasticity to move

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