JOINT STRUCTURE
To provide a joint structure capable of simplifying a fixing work of a pipe material and a joint portion.SOLUTION: A joint portion 34 can be inserted to a pipe material 30 at its tip end portion 34A1, and includes a projecting portion 34B. The projecting portion 34B can displace a part of the pipe m...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a joint structure capable of simplifying a fixing work of a pipe material and a joint portion.SOLUTION: A joint portion 34 can be inserted to a pipe material 30 at its tip end portion 34A1, and includes a projecting portion 34B. The projecting portion 34B can displace a part of the pipe material 30 to be close to a shaft center I side of the pipe material 30 when observed from a longitudinal direction of the pipe material 30 by pressing the pipe material 30 when the pipe material 30 is relatively moved toward the joint portion 34 in connecting the pipe material 30 and the joint portion 34. Further the joint portion 34 is provided with a first recessed portion 36 and a second recessed portion 38, and the part displaced to a joint portion 34 side, of the pipe material 30 enters the first recessed portion 36 and the second recessed portion 38, so that deformation of the pipe material 30 by the projecting portion 34B can be prevented from being interrupted by the joint portion 34.SELECTED DRAWING: Figure 1
【課題】管材と継手部との固定作業を簡略化することができる継手構造を得る。【解決手段】継手部34は、先端部34A1が管材30に挿入可能とされていると共に、突起部34Bを備えている。そして、突起部34Bは、管材30と継手部34との連結時において、管材30が継手部34に向かって相対移動されるときに管材30を押圧して管材30の長手方向から見て管材30の一部を管材30の軸心I側に近付くように変位させることができる。また、継手部34には、第1凹部36及び第2凹部38が設けられており、管材30の継手部34側に変位する部分が第1凹部36及び第2凹部38に進入することで、突起部34Bによる管材30の変形が継手部34によって阻害されることを抑制することができる。【選択図】図1 |
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