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公开(公告)号：US10436364B2
公开(公告)日：2019-10-08
申请号：US15509897
申请日：2016-01-20
发明人： Makoto Fujii , Masaki Miyamoto , Tatsuya Fujii , Toshihide Iida , Tomoyuki Koike , Shintaro Makihata
摘要： A structure of a resin-made pipe joint includes a joint body having a cylindrical shape, a sleeve having a cylindrical press-inserting portion which is press-insertable into the joint body and a cylindrical coupling portion which is press-insertable into a tube, and a fastening member for fixing the tube which is in a state where the coupling portion is press-inserted, to the joint body through the sleeve. The sleeve contains a sealing surface in an outer circumferential surface of the press-inserting portion, the sealing surface being closely contactable with an inner circumferential surface of the joint body, and comprises a non-contacting surface between the press-inserting portion and the coupling portion, the non-contacting surface forming a space with respect to the inner circumferential surface of the joint body, when the sealing surface is closely contacted with the inner circumferential surface of the joint body.
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公开(公告)号：US10145497B2
公开(公告)日：2018-12-04
申请号：US14888138
申请日：2014-03-24
发明人： Makoto Fujii , Toshihide Iida
IPC分类号： F16L19/028 , F16L47/04 , F16L33/22 , F16L13/14 , F16L15/08
摘要： A pipe-connecting device including a resin-made tube and an inner ring. The inner ring has a flared portion and a tip-contracted outer-circumferential flared surface. The tip-contracted outer-circumferential flared surface is press-inserted into an end portion of the tube to cause the end portion of the tube to be flared and deformed. A section shape of the outer-circumferential flared surface in a direction extending along an axis of the inner ring body is formed into a convex curved surface passing through a first place, which is a maximum-diameter portion of the flared portion, a second place, which is the tip end side of the flared portion of the inner ring body, and a third place, which is between the first place and the second place, and in which a diameter is equal to an outer diameter of the tube with respect to the axis.
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公开(公告)号：US10139028B2
公开(公告)日：2018-11-27
申请号：US15025762
申请日：2014-09-26
发明人： Makoto Fujii , Toshihide Iida
IPC分类号： F16L47/04 , F16L19/00 , F16L19/028 , F16L19/04
摘要： A pipe joint made of synthetic resin comprises a first opposing surface formed in a joint body perpendicular to the axial direction, and a second opposing surface formed in a union nut that opposes the first opposing surface. An engagement projection is provided in the second opposing surface that projects toward the first opposing surface. An engagement recess is provided in the first opposing surface such that the engagement projection engages with the engagement recess when the union nut has been tightened up to an appropriate position.
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公开(公告)号：US20160061360A1
公开(公告)日：2016-03-03
申请号：US14888138
申请日：2014-03-24
发明人： Makoto Fujii , Toshihide Iida
CPC分类号： F16L15/08 , F16L13/147 , F16L19/028 , F16L33/223 , F16L47/04 , F16L2201/44
摘要： An inner ring, in which a tip-contracted outer-circumferential flared surface to be press-inserted into a tube end portion to flare and deform the end portion is formed on the side of the tip end of a flared portion that is formed in an outer circumferential portion of an inner ring body, a section shape of the outer-circumferential flared surface in a direction extending along the axis of the inner ring body is formed into a convex curved surface passing through: a first place, which is the tube-press-insertion side tip end of a maximum-diameter portion of the flared portion; a second place, which is the tip end on the tube press insertion side; and a third place between the first place and the second place, and in which the diameter is equal to the outer diameter of the tube with respect to the axis.
摘要翻译： 一个内环，其中，在形成于其中的扩口部的顶端的一侧形成有将压入插入到管端部中的端部收缩的外周向扩张面以使端部变形并使其变形的内圈 内圈体的外周部，沿着内圈主体的轴线延伸的方向的外周面扩张面的截面形状形成为穿过的凸曲面：第一位置， 扩口部分的最大直径部分的压入侧顶端; 第二个位置，即管压插入侧的末端; 以及在第一位置和第二位置之间的第三位置，并且其中直径等于管相对于轴线的外径。
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公开(公告)号：US11441717B2
公开(公告)日：2022-09-13
申请号：US16330966
申请日：2017-06-15
发明人： Makoto Fujii , Masaki Miyamoto , Tatsuya Fujii , Toshihide Iida , Tomoyuki Koike , Shintaro Makihata
IPC分类号： F16L47/04 , F16L19/028 , F16L19/04 , F16L19/06
摘要： A resin tube fitting has a body with a sleeve allowing the longitudinal end of the tube to be put therein, an inner ring with a press-in portion configured to be pressed in the longitudinal end of the tube, and a union nut with a connector configured to be screwed to an outer periphery of the body to allow the longitudinal end of the tube to be put radially between the connector and the press-in portion. The inner ring and the union nut are made of resin, which has a property of contracting in response to change in ambient temperature. The radial contraction rate of the connector is higher by 0.05% or more than that of the press-in portion of the inner ring.
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公开(公告)号：US11433585B2
公开(公告)日：2022-09-06
申请号：US16322323
申请日：2017-06-15
发明人： Masaki Miyamoto , Masateru Yamada , Kazukiyo Teshima , Hiroki Sakamoto , Toshihide Iida , Tomoyuki Koike , Motoaki Naruo
摘要： A method for manufacturing a resin pipe joint with a joint body includes the following steps. Preparing a mold and a supply device configured to supply molten resin. The mold includes a first mold for an outer shape of the joint body and a second mold for an inner shape of the joint body. Combining the second mold with the first mold to form a cavity, into which the molten resin is injectable, inside the mold. Supplying the molten resin to the cavity in the mold. Solidifying the molten resin in the cavity after stop of the supply of the molten resin from the supply device. The second mold has a gap that connects the cavity to a discharge space outside the cavity and allows gas to flow.
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公开(公告)号：USD925709S1
公开(公告)日：2021-07-20
申请号：US29743330
申请日：2020-07-21
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公开(公告)号：US20190024836A1
公开(公告)日：2019-01-24
申请号：US16141488
申请日：2018-09-25
发明人： Makoto Fujii , Toshihide Iida
IPC分类号： F16L47/04 , F16L19/04 , F16L19/00 , F16L19/028
摘要： A pipe joint, made of synthetic resin, including: an inner ring; a joint body having an annular sealing groove and a male screw portion formed on an outer circumference; a union nut having a female screw portion formed on an inner circumference to be tightened onto the male screw portion of the joint body, such that a first opposing surface is formed in the joint body to be perpendicular to an axial direction, and a second opposing surface is formed in the union nut to oppose the first opposing surface. An engagement projection is provided in one of the first opposing surface and the second opposing surface. An engagement recess is provided in the other of the first opposing surface and the second opposing surface such that the engagement projection engages with the engagement recess when the union nut has been tightened up to an appropriate position.
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公开(公告)号：US09791084B2
公开(公告)日：2017-10-17
申请号：US14889695
申请日：2014-04-23
发明人： Makoto Fujii , Toshihide Iida
IPC分类号： F16L55/00 , F16L47/04 , F16L19/028 , F16L33/22
CPC分类号： F16L47/04 , F16L19/028 , F16L33/223
摘要： A pipe joint made of synthetic resin includes: a joint body including a male screw portion on an outer circumferential portion; and a union nut including a female screw portion formed on an inner circumferential portion such that the female screw portion is tightened onto the male screw portion of the joint body. An outer circumferential surface of the joint body has a projection portion that is integrated therewith and projects radially outward. An inner circumferential surface of the union nut has a convex or concave engagement portion that is integrated therewith and engages with the projection portion when the union nut is tightened up to an appropriate position.
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公开(公告)号：US20160116096A1
公开(公告)日：2016-04-28
申请号：US14889695
申请日：2014-04-23
发明人： Makoto Fujii , Toshihide Iida
CPC分类号： F16L47/04 , F16L19/028 , F16L33/223
摘要： A pipe joint made of synthetic resin includes: a joint body including a male screw portion on an outer circumferential portion; and a union nut including a female screw portion formed on an inner circumferential portion such that the female screw portion is tightened onto the male screw portion of the joint body. An outer circumferential surface of the joint body has a projection portion that is integrated therewith and projects radially outward. An inner circumferential surface of the union nut has a convex or concave engagement portion that is integrated therewith and engages with the projection portion when the union nut is tightened up to an appropriate position.
摘要翻译： 由合成树脂制成的管接头包括：在外周部分上具有外螺纹部分的接合体; 以及联接螺母，其包括形成在内周部分上的内螺纹部分，使得内螺纹部分被紧固到接头体的阳螺纹部分上。 接头主体的外周面具有与其一体形成的突出部，并且径向向外突出。 联管螺母的内圆周表面具有一个凸形或凹形的接合部分，该凸形或凹形的接合部分在联接螺母紧固到适当的位置时与凸出部分结合。
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