| 摘要 |
<p>There is provided an innerspring assembly used in a mattress for absorbing external loads. An outermost coil spring (115) of a spring array (110) is secured in a space between upper and lower border wires (120 and 120') by pins (140), and helical coils (130) are disposed in row directions (R) on upper and lower portions of the spring array (110) to knit an adjacent coil spring (115), such that each coil spring has a free terminal convolution (115a) protruded from an upper portion of the upper border wire (120) and/or a lower portion of the lower border wire (120'). The spring assembly includes an enclosure (10) partially or fully provided on an upper end portion and/or an lower end portion of the coil spring for covering the terminal convolution (115a) in the row direction (R) or column direction (L), thereby interrupting interference between the terminal convolution (115a) and the upper and/or lower border wire (120 and 120') and absorbing a lateral load applied to the terminal convolution. A padding member is not damaged by the terminal convolution, and a contact resistance between the upper border wire and the terminal convolution is absorbed to block a frictional noise.</p> |
