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| This expansion joint is a product
vital to bridges to allow smooth traveling
of vehicles on bridges. Nitta applied high
level mixing technology for rubber expansion
joints, whereby the company has realized outstanding
durability. Fifteen types of expansion joints
with expansion gaps up to 400 meters are available
in the product lineup. It also includes steel-type
expansion joints. |
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| The rubber bearing is an anti-seismic
bearing designed to support the upper structure
and to attenuate energy of earthquakes up
to Great Tokyo Earthquake level through lengthening
seismic wave length. It is vital to safety
and securing of lifelines. Nitta offers lead
rubber bearings (LRB). |
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| The finger joint water stop
cock is a molded water stop cock comprising
chloroprene rubber seamlessly integrated with
a parent sponge body. While the volume of
the stop cock itself changes, the stop cock
satisfactorily stops water. It is quite a
new type of water stop cock to solve problems
in current seal supplies. |
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| Nitta prepares two types of
seismic isolation systems: one is elastomeric
seismic isolators for buildings and the other
is expansion joints for base-isolated structures.
Each device designed under the company's basic
philosophy "supporting safety and sustainable
society for the future" is optimal for
maintaining functions of seismic isolation
buildings for long time. |
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Expansion joint
