JPH0221389U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は実施例の一部縦断正面図、第２図は試
験結果の特性グラフ、第３図は従来の標準継手の
一部縦断正面図、第４図は標準継手の特性グラフ
、第５図及び第６図は従来例の一部縦断正面図、
第７図は地中管路の一部を示す斜視図、第８図は
試験装置の正面図、第９図は第８図の側面図であ
る。 １……可撓部、２……差込み部、３……突条、
４……溝、５……溝、６……Ｏリング、７……管
路、８……パツキン。 Figure 1 is a partially vertical front view of the embodiment, Figure 2 is a characteristic graph of test results, Figure 3 is a partial vertical front view of a conventional standard joint, Figure 4 is a characteristic graph of the standard joint, and Figure 5 is a characteristic graph of the standard joint. Fig. 6 is a partially longitudinal front view of the conventional example;
FIG. 7 is a perspective view showing a part of the underground pipeline, FIG. 8 is a front view of the test device, and FIG. 9 is a side view of FIG. 8. 1...Flexible part, 2...Insertion part, 3...Protrusion,
4...Groove, 5...Groove, 6...O ring, 7...Pipe line, 8...Putskin.

Claims (1)

【実用新案登録請求の範囲】 (1) 円筒体の両端部に管路差込み部、中央部に
可撓部を形成してなる繊維強化プラスチツク製の
可撓継手において、可撓部内周面に差込み部内周
面より内方へ突出した少なくとも２本の突条を所
要の間隔をおいて全周にわたり形成したことを特
徴とする可撓継手。 (2) 請求項１の可撓継手において、差込み部の
内周面に複数の溝を全周にわたり形成したことを
特徴とする可撓継手。[Scope of Claim for Utility Model Registration] (1) In a flexible joint made of fiber-reinforced plastic, which is formed of a cylindrical body with conduit insertion parts at both ends and a flexible part in the center, the joint is inserted into the inner peripheral surface of the flexible part. A flexible joint characterized in that at least two protrusions projecting inward from an inner circumferential surface of the part are formed along the entire circumference at a predetermined interval. (2) The flexible joint according to claim 1, wherein a plurality of grooves are formed on the inner peripheral surface of the insertion portion over the entire circumference.