Expansion joint, diaphragm-free joint (rubber type), vertical joint.

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last updated：Dec 09, 2025

日本橋梁工業

For highways, bridges, and elevated bridges. Products that can accommodate three-dimensional movement.

When establishing new access roads or widening existing roads, three-dimensional movements occur in the vertical direction, along the bridge axis, and perpendicular to the bridge axis due to differences in the positions of bridge piers, abutments, and the structure of the deck. The product that can accommodate these three-dimensional movements is the expansion joint, specifically the Diah-Free Joint (rubber type) vertical joint. The K-40T, K-50T, and K-80T models effectively follow the unique three-dimensional movements of the vertical joint. The K-210T, K-240T, and K-330T models can handle large displacement amounts. We offer a variety of vertical joint net pin types. For more details, please contact us or refer to the catalog.

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basic information

【Features】 ○ Protects the floor slab → The receiving plate is coated with steel plate and comb coating ○ Comfortable driving → The surface rubber absorbs expansion and contraction through the elastic deformation of diamond-shaped holes ○ Safe driving → Steel plates that cause slipping do not appear on the surface ○ Environmentally friendly → Adopts high nut type anchor bolts ○ Cost-saving → Repairs can be done in a short time ○ Versatile → Compatible with both pre-installed and post-installed methods 【Lineup】 ○ K-40T, K-50T, K-80T → Firmly follows the three-dimensional movement unique to vertical joints ○ K-210T, K-240T, K-330T → Capable of accommodating large displacement amounts ○ Vertical joint net pin type → Only the surface rubber uses the net pin type, compatible with any model number ● For more details, please contact us or refer to the catalog.