| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber pipe joint for developing sufficient vibration absorbing performance by preventing the degradation of flexibility caused by an increase in inner pressure while suppressing the expansion of a rubber cylinder body caused by a change in inner pressure. SOLUTION: The rubber pipe joint 1 to be mounted between pipe connection parts comprises connection flanges 3 provided at both ends of the rubber cylinder body 2. The rubber cylinder body 2 is formed with reinforcing cord layers 4a, 4b embedded in a cylindrical rubber film 2a. An angle of inclination (θ1) of a reinforcing cord 6 at central portions (L1) of the reinforcing cord layers 4a, 4b is smaller than a static angle (54.7°). An angle of the inclination (θ2) of the reinforcing cord 6 at both ends (L13) of the reinforcing cord layers 4a, 4b is greater than the static angle (54.7°). The angles of inclination (θ1,θ2) are each sufficiently set apart from the static angle (54.7°). This prevents the degradation of flexibility caused by an increase in inner pressure. The expansion of the central portions (L1) is counteracted with those of both ends (L3) to suppress the expansion of the rubber cylinder body 2 caused by an change in inner pressure. COPYRIGHT: (C)2008,JPO&INPIT
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