Sumitomo Rubber Industries Limited

Hidehiko Dohi

Marina Kotani

Hiroyuki Kishimoto

Takashi Nishimura

Hiroshi Jinnai

Kouji Ichikawa

Motoshi Tanigawa

Takeshi Kaneko

Tetsuo Koishi

Hirofumi Nakamae

Hideaki Kimura

Left and right sides of the mesh sandwiching the placing region therebetween are set as left and right to-be-fixed portions to be fixed to sample holder separation portions respectively to be moved in a stretch direction. A slit for dividing use is formed from a portion of the periphery of the mesh disposed between the left and right to-be-fixed portions thereof toward the rubber slice-placing position of the mesh in a direction orthogonal to the stretch direction of the rubber slice or a direction inclined thereto. When the to-be-fixed portions are moved in a separation direction by moving the sample holder separation portions, the mesh is divided into left and right parts by the slit for dividing use so that the rubber slice fixed to the left and right sides of the mesh is stretched.

Mesh and method of observing rubber slice technical field

A rubber specimen-stretching jig including a jig body has a disk-shaped pedestal; a columnar rubber specimen-fitting support erected on the pedestal; and a columnar retaining ring-fitting support projected from an upper end surface of the rubber specimen-fitting support; and an annular retaining ring removably fixedly fitted around the retaining ring-fitting support. The jig body is inserted into the cylindrical rotor, with one or more stretched annular rubber specimens wound around the rubber specimen-fitting support of the jig body; and with an inner surface of the rotor fixedly pressed against an outer surface of the pedestal and that of the retaining ring and brought into contact with the annular rubber specimens, a solid NMR of each of the annular rubber specimens is measured while the stretched annular rubber specimens are being rotated at a high speed by interlocking the stretched annular rubber specimens to the rotor rotated at a high speed.

Rubber specimen-stretching jig and apparatus and method for analyzing molecular structure and molecular motion of stretched rubber specimen

A cushion tire especially intended for industrial or construction vehicles such as a forklift truck wherein the cushion tire has a triple layered structure comprising a base rubber layer, a middle rubber layer and a tread rubber layer arranged radially outwardly in that order, and the middle rubber layer is provided with a hollow part extending circumferentially of the tire, whereby the ride is softened while durability and driving stability are maintained at a good level.

Three layer cushion tire

Growing community of inventors

Hyogo, Japan

Hidehiko Dohi