A Biaxial Load Cell Design for Simultaneous Measurement of Horizontal and Vertical Spring Forces in Sinuous Spring-Supported Seating

    Volume 35, Issue 4 (July 2007)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 8 May 2007

    Page Count: 10


    Tackett, Bob
    Research Associate and Associate Professor, Mississippi State University, Mississippi State

    Zhang, Jilei
    Research Associate and Associate Professor, Mississippi State University, Mississippi State

    (Received 3 August 2004; accepted 25 January 2007)

    Abstract

    Sinuous springs are the most commonly used method of seat support in upholstered furniture. The dynamics of load transference by these springs to the furniture frame members has not been thoroughly studied. Rational strength design of sinuous-type upholstered furniture frames, especially their seating support systems, requires information concerning the magnitudes and directions of spring loads on spring supporting rails. These values are important for frame designers to be able to adjust member sizes and materials and select appropriate fasteners. Presently, furniture design largely depends on trial and error. A load cell was conceived, designed, and verified which can determine horizontal and vertical components of a spring load. Preliminary results showed that the average initial spring tension on each load cell, with no external loading applied to the springs, was 46 lb. (205 N) horizontal. For some situations, the horizontal load components actually decrease when a person comes to rest on the seat. Vertical and horizontal loading is greatest on the center three springs of the seat which used five, equally spaced springs in this paper.


    Paper ID: JTE100112

    DOI: 10.1520/JTE100112

    ASTM International is a member of CrossRef.

    Author
    Title A Biaxial Load Cell Design for Simultaneous Measurement of Horizontal and Vertical Spring Forces in Sinuous Spring-Supported Seating
    Symposium , 0000-00-00
    Committee F15