4th WCSET-2015 at Japan
Mechanical Engineering:
Title:
Development of Device for Supporting Worker on Concrete
Walls
Authors:
Yu Tsuruzono, Kazuya Mori, Saeko Tokuomi, Yukimasa Yano,
Naoki Fukutani
Abstract: We
have developed a device for supporting a worker on
concrete walls. Concrete structures are generally tested
by workers on a high lift work vehicle. In case of
situations where the wall is high or the field is
complex, lift vehicle is not available. In this case,
workers climb the wall using some ropes and test the
structure. However, sometimes winds affect the workers
on the wall. When the wind is strong workers must
struggle to work in the unstable condition. An immediate
solution is required for this problem. So we have
developed a device that can get worker supported on
concrete walls. This supporting device can adhere to
concrete walls by a suction cup. The size and the weight
of the device are 400 mm by 300 mm and about 4kg. The
suction cup comes in contact with walls on four cone
type claws and an elastic rectangular ring making the
decompression space. The claws slightly enter the
concrete wall to generate the supporting force. The
supporting force is not affected by the wall conditions
such as wetness of the wall and dust. The device can
support the whole weight of a worker as a single body.
And the device can fit in almost anywhere on wall, so
worker can choose any place on the wall to fix the
device. And then the worker also can adjust the length
of rope between the worker and this device as
convenient. Thus, force of wind almost never affects the
worker on the wall. So, this device can make worker
testing the structure in stable condition by using this
device.
Keywords: Concrete
Structure, Testing, Wall, Worker, Support, Suction Cup
Pages:
161-163