کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
375484 622705 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Redesigning the manual automobile tyre bead breaker
موضوعات مرتبط
علوم انسانی و اجتماعی مدیریت، کسب و کار و حسابداری کسب و کار و مدیریت بین المللی
پیش نمایش صفحه اول مقاله
Redesigning the manual automobile tyre bead breaker
چکیده انگلیسی

A new tyre bead-breaking tool was developed to eliminate the drudgery of manual bead breaking by local Nigerian tyre repair artisans. Like a conventional bead breaker, the new tool is based on the lever principle. Its velocity ratio is 11.2, and its production cost 4500; the conventional bead breaker's velocity ratio is 5.1 and its production cost is approximately 2500. It was tested alongside the conventional tool. The average time spent on the first bead-breaking action for tyres with rim sizes ranging from 13″ to 16″ was 2.54 s using the new tool; it was 19.04 s for the conventional tool. The amount of time increased with rim size. It was easier and required less energy to use the new tool, especially with tyres of larger rim sizes. This is a significant technological breakthrough in Africa where the higher-cost bead breakers are not readily affordable.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Technology in Society - Volume 30, Issue 2, April 2008, Pages 184–193
نویسندگان
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