First joint and pipe joint

Abstract

The first joint has a central axis and extends in an axial direction along the central axis. The first joint has a first joint body, an axially opposing portion, an operating portion, and a mounting member. The first joint body is connected with the second joint along the central axis. In a state in which the first joint body is connected to the second joint, the axially facing portions face each other in the axial direction from the front end side of the first joint body in the axial direction with respect to a protruding portion protruding from the outer peripheral surface of the second joint. The operating portion is connected to the axially facing portion, and switches between a facing state and a non-facing state of the axially facing portion and the protruding portion in the axial direction by operating in an axis crossing direction crossing the central axis. The attachment member is attached to the outer peripheral surface of the first joint body. The attachment member has an operating part restricting part that restricts the movement of the operating part in a state where the axially facing part and the protruding part face each other.

Description

Technical Field

[0001] The present invention relates to a first joint and a pipe joint. Background Art

[0002] In a conventional joint device, a user manually operates a working member to quickly connect and disconnect a joint body from a part of a fluid conveying device. The working member reciprocates relative to the outer surface of the joint body by the action of a biasing member (for example, Patent Document 1).

[0003] Specifically, an insertion member is inserted into the joint body. In this case, the insertion member is locked to the joint body by a tapered surface of the insertion member. Further, by pressing the working member, the locking is released, and the insertion member can be separated and removed from the joint body. Prior Art Documents Patent Documents

[0004] Patent Document 1: U.S. Patent Application Publication No. 2005 / 0001425 Summary of the Invention Technical Problem to be Solved by the Invention

[0005] However, in a conventional joint device, for example, when the working member comes into contact with another member, there is a possibility that the locking of the insertion member may be released due to malfunction of the working member.

[0006] The present disclosure has been made in view of the above technical problems, and an object thereof is to provide a first joint and a pipe joint capable of suppressing malfunction of a working portion. Technical Solution for Solving the Technical Problem

[0007] An exemplary first joint of the present disclosure has a central axis and extends in an axial direction along the central axis. The first joint has a first joint body, an axially opposing portion, a working portion, and a mounting member. The first joint body is connected to a second joint along the central axis. In a state where the first joint body is connected to the second joint, the axially opposing portion is axially opposed to a protruding portion protruding from an outer peripheral surface of the second joint from a front end side in the axial direction of the first joint body. The working portion is connected to the axially opposing portion, and switches a relative state and a non-relative state between the axially opposing portion and the protruding portion in the axial direction by working in a direction intersecting an axis intersecting the central axis. The mounting member is mounted on an outer peripheral surface of the first joint body. The mounting member has a working portion restricting portion that restricts movement of the working portion in a relative state between the axially opposing portion and the protruding portion.

[0008] An exemplary first joint of the present disclosure has a central axis and extends axially along the central axis. The first joint has a first joint body, an axially opposite portion, a working portion, and a mounting member. The first joint body is connected to a second joint along the central axis. In a state where the first joint body is connected to the second joint, the axially opposite portion is axially opposite to a protruding portion protruding from the outer peripheral surface of the second joint from the front end side in the axial direction of the first joint body. The working portion is connected to the axially opposite portion and switches the relative state and non-relative state between the axially opposite portion and the protruding portion in the axial direction by working along an axis crossing direction that crosses the central axis. The mounting member is mounted on the outer peripheral surface of the first joint body. The mounting member has a crossing direction opposite portion. In a relative state between the axially opposite portion and the protruding portion, the crossing direction opposite portion is opposite to the working portion in the axis crossing direction between the first joint body and the working portion.

[0009] An exemplary pipe joint of the present disclosure has the above-described first joint and the above-described second joint. Advantages of the Invention

[0010] According to the exemplary present disclosure, malfunction of the working portion can be suppressed. Description of the Drawings

[0011] Figure 1 is a perspective view showing a second joint of a first embodiment of the present disclosure. Figure 2 is along Figure 1 sectional view taken along line II-II of. Figure 3 is a perspective view showing a first joint of the first embodiment. Figure 4 is an exploded perspective view showing the first joint of the first embodiment. Figure 5 is along Figure 3 sectional view taken along line V-V of. Figure 6 is a sectional view showing a state where a working member of the first joint of the first embodiment is in an open position. Figure 7 is a sectional view showing a state where the first joint and the second joint of the first embodiment are connected. Figure 8 is a top view showing the first joint of the first embodiment. Figure 9 is along Figure 8 sectional view taken along line IX-IX of. Figure 10 is a top view showing another state of the first joint of the first embodiment. Figure 11 is along Figure 10Cross-sectional view taken along line XI-XI. Figure 12 Is a top view showing the mounting member of the first embodiment. Figure 13 Is a perspective view showing the mounting member of the first embodiment. Figure 14 Is a rear view showing the mounting member of the first embodiment. Figure 15 Is a front view showing the first joint of the first embodiment. Figure 16 Is a perspective view showing the first joint of a modified example of the first embodiment. Figure 17A Is a view showing the first position of the mounting member of this modified example. Figure 17B Is a view showing the second position of the mounting member of this modified example. Figure 18 Is a top view showing the first joint when the mounting member of this modified example is in the first position. Figure 19 Is a top view showing the first joint when the mounting member of this modified example is in the second position. Figure 20 Is a cross-sectional view showing the first joint of the second embodiment. Figure 21 Is a cross-sectional view showing the first joint of the second embodiment. Figure 22 Is a cross-sectional view showing the first joint of the second embodiment. Figure 23 Is a cross-sectional view showing the first joint of the third embodiment. Figure 24 Is a cross-sectional view showing the first joint of the third embodiment. Figure 25 Is a cross-sectional view showing the first joint of the fourth embodiment. Figure 26 Is a cross-sectional view showing the first joint of the fourth embodiment. Figure 27 Is a cross-sectional view showing the first joint of the fourth embodiment. Detailed Embodiments

[0012] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings. In addition, the same or corresponding parts in the drawings are denoted by the same reference numerals, and will not be repeatedly described. Moreover, in the drawings, for the sake of easy understanding, the X-axis, Y-axis, and Z-axis of the three-dimensional rectangular coordinate system are appropriately shown.

[0013] In this specification, with respect to the central axis AX1 of the first joint (for example Figure 3)The direction parallel is described as "axial direction AD1". In addition, the direction orthogonal to the central axis AX1 is described as "radial direction RD1". The "radial direction RD1" can be any direction as long as it is orthogonal to the central axis AX1, and is not particularly limited. In addition, the direction along the arc centered on the central axis AX1 is described as "circumferential direction CD1".

[0014] In addition, the direction parallel to the central axis AX2 of the second joint (for example Figure 1 ) is described as "axial direction AD2". In addition, the direction orthogonal to the central axis AX2 is described as "radial direction RD2". The "radial direction RD2" can be any direction as long as it is orthogonal to the central axis AX2, and is not particularly limited. In addition, the direction along the arc centered on the central axis AX2 is described as "circumferential direction CD2".

[0015] In addition, in this specification, the "parallel direction" includes a substantially parallel direction, and the "orthogonal direction" includes a substantially orthogonal direction. In addition, in this specification, the "ring shape", "cylindrical shape", "circular ring shape", "tube shape", "circular shape", and "wave shape" do not represent strict shapes, but include shapes to the extent that they can achieve the functions of the first joint or the second joint of the present disclosure, for example.

[0016] (First Embodiment) Refer to Figures 1 to 15 , and the first joint 100 and the second joint 200 of the first embodiment of the present disclosure will be described. First, refer to Figure 1 and Figure 2 , and the second joint 200 will be described.

[0017] Figure 1 is a perspective view showing the second joint 200 of the embodiment of the present disclosure. As Figure 1 shown, the second joint 200 has a central axis AX2. The second joint 200 extends in the axial direction AD2 along the central axis AX2. The second joint 200 is a male joint. In the present embodiment, the "front" of the second joint 200 indicates the side inserted into the first joint 100 ( Figure 3 ). The "rear" of the second joint 200 indicates the side inserted into the tube TB2.

[0018] The second joint 200 has a protrusion 204. Specifically, the second joint 200 has a plug portion 201 and an insertion portion 202. The plug portion 201 and the insertion portion 202 are connected along the axial direction AD2. The plug portion 201 has a plug body 203, a protrusion 204, and a connecting body 205.

[0019] The plug body 203 has a cylindrical shape. The protrusion 204 protrudes from the outer peripheral surface of the second joint 200. Specifically, the protrusion 204 protrudes from the outer peripheral surface of the plug body 203 toward the outside in the radial direction RD2. The protrusion 204 extends in the circumferential direction CD2. The protrusion 204 has an annular shape. The protrusion 204 expands relative to the central axis AX2 from the front end 203a to the rear end 206a in the axial direction AD2 of the second joint 200. That is, the diameter of the protrusion 204 increases from the front end 203a to the rear end 206a of the second joint 200. The protrusion 204 is located on the side of the rear end portion 203b in the axial direction AD2 of the plug body 203.

[0020] The connecting body 205 is connected to the rear end portion 203b of the plug body 203. The connecting body 205 and the plug body 203 are configured as a single member (integrally molded product). The connecting body 205 has a cylindrical shape.

[0021] The insertion portion 202 is inserted into the tube TB2. Specifically, the insertion portion 202 has an insertion body 206, a connecting body 207, and a plurality of protrusions 212. The insertion body 206 is inserted into the tube TB2. The insertion body 206 has a cylindrical shape. The protrusions 212 protrude from the outer peripheral surface of the insertion body 206 toward the outside in the radial direction RD2. The protrusions 212 have an annular shape. The diameter of the protrusions 212 increases from the rear end 206a to the front end 203a in the axial direction AD2 of the second joint 200.

[0022] The connecting body 207 is connected to the rear end portion 206b in the axial direction AD2 of the insertion body 206. The connecting body 207 and the insertion body 206 are configured as a single member (integrally molded product). The connecting body 207 has a cylindrical shape.

[0023] The connecting body 205 of the plug portion 201 is fitted into the connecting body 207 of the insertion portion 202. As a result, the plug portion 201 and the insertion portion 202 are connected.

[0024] Figure 2 It is along Figure 1 a cross-sectional view taken along line II-II. Figure 2 It shows a state where the second joint 200 is separated from the first joint 100. That is, it shows a state where the second joint 200 is not connected to the first joint 100. As Figure 2 shown, the plug portion 201 further has a plug valve portion 208, an elastic member 209, a sealing member 210, a sealing member 211, and a flow path 213. In addition, the insertion portion 202 further has a flow path 214. The flow paths 213 and 214 extend in the axial direction AD2. The front end in the axial direction AD2 of the flow path 214 is connected to the rear end in the axial direction AD2 of the flow path 213. That is, the flow path 213 and the flow path 214 are connected.

[0025] The plug valve portion 208 is disposed in the flow path 213 on the front end 203a side of the plug body 203. The plug valve portion 208 is pushed from the rear end portion 203b side of the plug body 203 toward the front end 203a side by the elastic member 209. The plug valve portion 208 closes the flow path 213 on the front end 203a side of the plug body 203. The sealing member 210 is attached to the outer peripheral surface of the plug valve portion 208. The sealing member 210 is an elastic body and has an annular shape. The sealing member 210 seals the flow path 213 on the front end 203a side of the plug body 203.

[0026] The elastic member 209 is disposed in the flow path 213. The elastic member 209 has elasticity. The elastic member 209 is, for example, a compression coil spring. The sealing member 211 is attached to the outer peripheral surface of the connecting body 205. The sealing member 211 is an elastic body and has an annular shape. The sealing member 211 seals between the outer peripheral surface of the connecting body 205 and the inner peripheral surface of the connecting body 207.

[0027] Next, with reference to Figures 3 to 6 , the first joint 100 will be described. Figure 3 FIG. is a perspective view showing the first joint 100 of the present embodiment. Figure 4 FIG. is an exploded perspective view showing the first joint 100.

[0028] As shown in Figure 3 and Figure 4 , the first joint 100 has a central axis AX1. The first joint 100 extends in the axial direction AD1 along the central axis AX1. The first joint 100 is a female joint. The first joint 100 is connected to the second joint 200 ( Figure 1 ) along the central axis AX1. In the present embodiment, "front" of the first joint 100 means the side into which the second joint 200 is inserted. "Rear" of the first joint 100 means the side where the insertion tube TB1 is inserted.

[0029] The first joint 100 has a first joint body 1, a mounting member 3, a working portion 71, and an elastic member 11. Specifically, the first joint 100 has a working member 7. And the working member 7 has a working portion 71. The first joint body 1 extends in the axial direction AD1. The first joint body 1 is connected to the second joint 200 ( Figure 1)Connection. The mounting member 3 is mounted on the outer peripheral surface of the first joint body 1. Details of the mounting member 3 will be described later. The working member 7 is operated by an operator to switch the connection state between the first joint body 1 and the second joint 200 between a locked state and an unlocked state. The locked state indicates a state in which the connection between the first joint body 1 and the second joint 200 cannot be released. The unlocked state indicates a state in which the connection between the first joint body 1 and the second joint 200 can be released. The elastic member 11 supports the working member 7. As an example, a button is constituted by the working member 7 (working portion 71) and the elastic member 11.

[0030] Specifically, the first joint body 1 has a socket portion 5 and an insertion portion 9. The socket portion 5 and the insertion portion 9 are connected along the axial direction AD1. The plug portion 201 of the second joint 200 ( Figure 1 ) is inserted into the socket portion 5. In addition, the mounting member 3 is mounted on the outer peripheral surface of the socket portion 5.

[0031] The socket portion 5 has a socket body 50. The plug body 203 of the second joint 200 ( Figure 1 ) is inserted into the socket body 50. The socket body 50 has a cylindrical shape.

[0032] The socket body 50 has an opening 51. The opening 51 has a circular shape. The opening 51 is located on the front end 5a side of the socket body 50. The opening 51 opens along the axial direction AD1.

[0033] Next, with reference to Figure 3 and Figure 4 , the structure related to the working member 7 and the working member 7 will be described. The socket body 50 further has a through hole 52 and a recess 53. The through hole 52 penetrates the socket body 50 in the axis crossing direction Da. The axis crossing direction Da crosses the central axis AX1. In the present embodiment, the axis crossing direction Da is orthogonal to the central axis AX1. The working member 7 is arranged in the through hole 52 in the axis crossing direction Da. The recess 53 is recessed in the axis crossing direction Da with respect to the outer peripheral surface of the socket body 50. The elastic member 11 is arranged in the recess 53 in the axis crossing direction Da. The elastic member 11 has elasticity. The elastic member 11 is, for example, a compression coil spring. The elastic member 11 expands and contracts in the axis crossing direction Da. The elastic member 11 is arranged between the working portion 71 of the working member 7 and the bottom surface 53a of the recess 53. The elastic member 11 supports the working portion 71.

[0034] The socket body 50 further has a pair of contact portions 54. Figure 3 and Figure 4 only show one contact portion 54. In addition, the working member 7 further has a pair of connection portions 72, a pair of limiting portions 73, an opening 74, and an axially opposing portion 75.

[0035] Define one side D1 and the other side D2 of the axis intersection direction Da. One side D1 represents the direction (the first direction) from the axially opposite part 75 toward the working part 71 in the state where the working member 7 is disposed in the through hole 52. The other side D2 represents the direction (the second direction) from the working part 71 toward the axially opposite part 75 in the state where the working member 7 is disposed in the through hole 52.

[0036] A pair of connecting parts 72 extend along the axis intersection direction Da. The pair of connecting parts 72 connect the working part 71 and the axially opposite part 75. That is, the working part 71 is connected to the axially opposite part 75 through the pair of connecting parts 72. The connecting part 72 is columnar. The opening 74 is defined by the working part 71, the pair of connecting parts 72, and the axially opposite part 75. The opening 74 opens along the axial direction AD1.

[0037] A pair of limiting parts 73 are disposed at both ends of the axially opposite part 75 in the direction Db. The direction Db represents a direction orthogonal to the axis intersection direction Da and the axial direction AD1. As Figure 3 shown, in the state where the working member 7 is disposed in the through hole 52, the pair of limiting parts 73 are opposite to the pair of contact parts 54 in the axis intersection direction Da. Specifically, in the state where the limiting part 73 and the contact part 54 are opposite, the contact part 54 is located on one side D1 of the limiting part 73, and the limiting part 73 is located on the other side D2 of the contact part 54. The pair of contact parts 54 are opposite to each other in the direction Db. And, the through hole 52 is provided between the pair of contact parts 54.

[0038] In the state where the working member 7 is disposed in the through hole 52, the elastic member 11 presses the working part 71 toward one side D1 of the axis intersection direction Da. In this case, the limiting part 73 of the working member 7 contacts the contact part 54 in the axis intersection direction Da. Therefore, the limiting part 73 inhibits the working member 7 from coming out of the through hole 52 toward one side D1 of the axis intersection direction Da. That is, the working member 7 is held in the socket body 50 in the state of being disposed in the through hole 52. Sometimes, the position of the working member 7 when the limiting part 73 is in contact with the contact part 54 is recorded as the "initial position".

[0039] On the other hand, in the state where the working member 7 is disposed in the through hole 52, if a force is applied to the working member 7 toward the other side D2 of the axis intersection direction Da, the working member 7 resists the elastic force of the elastic member 11 and moves from the initial position toward the other side D2 of the axis intersection direction Da. When the force applied to the working member 7 is released, the working member 7 moves toward one side D1 of the axis intersection direction Da due to the elastic force of the elastic member 11 until the limiting part 73 contacts the contact part 54. That is, the working member 7 returns to the initial position.

[0040] Next, refer to Figure 3 and Figure 4, the insertion portion 9 is inserted into the tube TB1. Specifically, the insertion portion 9 has an insertion body 91, a connecting body 92, and a plurality of protrusions 93. The insertion body 91 is inserted into the tube TB1. The insertion body 91 has a cylindrical shape. The protrusions 93 protrude from the outer peripheral surface of the insertion body 91 toward the outside in the radial direction RD1. The protrusions 93 have an annular shape. The diameter of the protrusions 93 increases from the rear end 91a to the front end 5a in the axial direction AD1 of the first joint 100.

[0041] The connecting body 92 is connected to the socket portion 5. The connecting body 92 is connected to the rear end portion 91b of the insertion body 91 in the axial direction AD1. The connecting body 92 and the insertion body 91 are configured as a single member (integrally molded product). The connecting body 92 has a cylindrical shape.

[0042] Next, referring to Figure 5 , the internal structure of the first joint 100 will be described. Figure 5 is a cross-sectional view along the V-V line of Figure 3 . Figure 5 The state in which the first joint 100 is separated from the second joint 200 is shown. That is, the state in which the first joint 100 is not connected to the second joint 200 is shown.

[0043] As Figure 5 shown, the socket portion 5 further has a connecting body 55, a socket valve portion 56, a rod portion 57, an elastic member 58, sealing members 59, 60, 61, 65, a flow path 62, and a plug arrangement portion 63. The plug body 203 ( Figure 1 ) is arranged in the plug arrangement portion 63. Specifically, the plug arrangement portion 63 has a plug arrangement space 67. And, the plug body 203 is arranged in the plug arrangement space 67. In addition, the plug arrangement portion 63 has a protrusion arrangement portion 66. The protrusion portion 204 of the plug body 203 ( Figure 1 ) is arranged in the protrusion arrangement portion 66. In addition, the insertion portion 9 further has a flow path 94. In addition, the first joint body 1 further has a protruding portion 64. Specifically, the socket body 50 of the socket portion 5 has a protruding portion 64. The details of the protruding portion 64 will be described below.

[0044] The flow paths 94, 62, and the plug arrangement space 67 extend along the axial direction AD1. The front end of the flow path 94 in the axial direction AD1 is connected to the rear end of the flow path 62 in the axial direction AD1. That is, the flow path 94 is connected to the flow path 62. In addition, the front end of the flow path 62 in the axial direction AD1 is connected to the rear end of the plug arrangement space 67 in the axial direction AD1. That is, the flow path 62 is connected to the plug arrangement space 67. The front end of the plug arrangement space 67 in the axial direction AD1 is connected to the opening 74. That is, the plug arrangement space 67 is connected to the opening 74. In addition, the opening 74 is connected to the opening 51 in the axial direction AD1.

[0045] The connecting body 55 is connected to the protruding portion 64 of the socket body 50. The protruding portion 64 is located at the rear end portion of the socket body 50 in the axial direction AD1. The connecting body 55 and the socket body 50 are configured as a single member (integrally molded product). The connecting body 55 has a cylindrical shape.

[0046] The connecting body 55 of the socket portion 5 is fitted into the connecting body 92 of the insertion portion 9. As a result, the socket portion 5 is connected to the insertion portion 9.

[0047] The socket valve portion 56 has a cylindrical shape. The socket valve portion 56 is disposed at the rear end portion of the plug arrangement space 67. The socket valve portion 56 is pushed from the side of the protruding portion 64 of the socket body 50 toward the front end 5a side by the elastic member 58. The socket valve portion 56 closes the rear end portion of the plug arrangement space 67. A sealing member 65 is disposed in the plug arrangement space 67. The sealing member 65 is an elastomer and has an annular shape. The sealing member 65 contacts the outer peripheral surface of the socket valve portion 56, thereby sealing the rear end portion of the plug arrangement space 67.

[0048] The rod portion 57 extends along the axial direction AD1. The front end portion 57a of the rod portion 57 in the axial direction AD1 is disposed at the rear end portion of the plug arrangement space 67. In Figure 5 the example, the front end portion 57a is disposed inside the socket valve portion 56. A sealing member 60 is mounted on the outer peripheral surface of the front end portion 57a. The sealing member 60 is an elastomer and has an annular shape. The sealing member 60 seals between the outer peripheral surface of the rod portion 57 and the inner peripheral surface of the socket valve portion 56. In addition, a sealing member 61 is disposed in the plug arrangement space 67. The sealing member 61 is disposed closer to the front end 5a side of the socket body 50 than the sealing member 65.

[0049] The elastic member 58 is disposed in the flow path 62. The elastic member 58 has elasticity. The elastic member 58 is, for example, a compression coil spring. A sealing member 59 is mounted on the outer peripheral surface of the connecting body 55. The sealing member 59 is an elastomer and has an annular shape. The sealing member 59 seals between the outer peripheral surface of the connecting body 55 and the inner peripheral surface of the connecting body 92.

[0050] Next, with reference to Figure 5 and Figure 6 , the working member 7 will be described. Figure 5 FIG. shows the working member 7 when the axially opposing portion 75 is in the initial position Z0. As Figure 5 shown, in a state where the working member 7 (working portion 71) is pressed by the elastic member 11 toward the side D1 in the axis crossing direction Da and is stationary, the axially opposing portion 75 is in the initial position Z0. At the initial position Z0, the axially opposing portion 75 faces the protrusion arrangement portion 66 in the axial direction AD1. That is, at the initial position Z0, the axially opposing portion 75 is located in front of the protrusion arrangement portion 66 in the axial direction AD1.

[0051] Figure 6 The working member 7 is shown with the axial relative portion 75 in the open position Z1. As Figure 6 shown, when an external force is applied to the working member 7 (working portion 71) toward the other side D2 in the axis crossing direction Da, the working member 7 (working portion 71) is pushed toward the other side D2 in the axis crossing direction Da against the elastic force of the elastic member 11 and stops. As a result, the axial relative portion 75 moves from the initial position Z0 to the open position Z1 and stops. At the open position Z1, the axial relative portion 75 is located on the other side D2 in the axis crossing direction Da with respect to the protrusion arrangement portion 66. Therefore, at the open position Z1, the axial relative portion 75 and the protrusion arrangement portion 66 do not face each other in the axial direction AD1. As a result, the front of the protrusion arrangement portion 66 is open in the axial direction AD1. In addition, the "external force" is applied to the working member 7 (working portion 71) by an operator, for example. For example, the operator presses the working portion 71 with a finger.

[0052] Next, with reference to Figure 7 , the state in which the first joint 100 and the second joint 200 are connected will be described. Figure 7 is a cross-sectional view showing the state in which the first joint 100 and the second joint 200 are connected. In the state in which the first joint 100 and the second joint 200 are connected, the central axis AX1 of the first joint 100 coincides with the central axis AX2 of the second joint 200. Therefore, the axial direction AD1 coincides with the axial direction AD2, the radial direction RD1 coincides with the radial direction RD2, and the circumferential direction CD1 coincides with the circumferential direction CD2.

[0053] As Figure 7 shown, the first joint 100 and the second joint 200 form a pipe joint 300. That is, the pipe joint 300 has the first joint 100 and the second joint 200.

[0054] When the plug body 203 is inserted into the socket body 50, the front end 203a of the plug body 203 in the axial direction AD1 contacts the front end 56a of the socket valve portion 56 in the axial direction AD1. Therefore, the socket valve portion 56 moves from one side D11 in the axial direction AD1 to the other side D12 due to the plug body 203. At the same time, by inserting the plug body 203 into the socket body 50, the front end portion 57a of the rod portion 57 in the axial direction AD1 contacts the front end portion 280b of the plug valve portion 208 in the axial direction AD1. Therefore, the plug valve portion 208 moves from the other side D12 in the axial direction AD1 to one side D11. As a result, the flow path 213 of the plug portion 201 is connected to the flow path 62 of the socket portion 5. Therefore, the liquid flows between the first joint 100 and the second joint 200.

[0055] Next, with reference to Figure 7, the case of switching the connection state between the first joint 100 and the second joint 200 between the locked state and the unlocked state will be described. In the state where the first joint 100 and the second joint 200 are being connected, the plug body 203 is disposed in the plug disposition portion 63 (plug disposition space 67) of the socket body 50. In this case, the protrusion portion 204 of the plug body 203 is disposed in the protrusion disposition portion 66.

[0056] The working member 7 is pushed by the elastic member 11 toward the side D1 in the axis crossing direction Da. Therefore, the axially opposing portion 75 of the working member 7 is located at the initial position Z0. As a result, the protrusion portion 204 of the plug body 203 faces the axially opposing portion 75 in the axial direction AD1 and contacts each other. That is, at the initial position Z0, the axially opposing portion 75 is opposite to the protrusion portion 204 protruding from the outer peripheral surface of the second joint 200 along the axial direction AD1 from the front end 5a side of the axial direction AD1 of the first joint body 1 in the state where the first joint body 1 is connected to the second joint 200. Therefore, the connection state between the first joint 100 and the second joint 200 becomes the locked state.

[0057] On the other hand, if an external force is applied to the working portion 71 toward the other side D2 in the axis crossing direction Da, the axially opposing portion 75 moves from the initial position Z0 to the open position Z1. At the open position Z1, the axially opposing portion 75 does not face the protrusion portion 204 in the axial direction AD1. As a result, the front in the axial direction AD1 of the protrusion portion 204 is opened. Therefore, the connection state between the first joint 100 and the second joint 200 becomes the unlocked state. That is, the locking of the connection state between the first joint 100 and the second joint 200 is released. Therefore, the second joint 200 can be separated from the first joint 100. In addition, the "external force" is applied to the working member 7 (working portion 71) by an operator, for example. For example, the operator pushes the working portion 71 with a finger.

[0058] As described above, as referred to Figure 7 The working portion 71 switches the relative state and the non-relative state between the axially opposing portion 75 and the protrusion portion 204 in the axial direction AD1 by working in the axis crossing direction Da.

[0059] Next, referring to Figure 4 , Figure 8 and Figure 9 , the working member 7 will be described. Figure 8 is a top view showing the first joint 100. Figure 9 is a cross-sectional view along the Figure 8 IX-IX line.

[0060] As Figure 4 and Figure 8As shown, the mounting member 3 has a cross-direction opposing portion 30. In the present embodiment, the cross-direction opposing portion 30 has two opposing pieces 310. The two opposing pieces 310 oppose each other in the direction Db( Figure 4 ).

[0061] As Figure 9 shown, the cross-direction opposing portion 30 opposes the working portion 71 in the axial direction crossing direction Da between the first joint main body 1 and the working portion 71 in a relative state between the axial opposing portion 75 and the protrusion portion 204( Figure 7 ). Therefore, according to the present embodiment, the movement of the working portion 71 in the axial direction crossing direction Da is restricted by the cross-direction opposing portion 30. As a result, malfunction of the working portion 71 can be suppressed. Therefore, it is possible to suppress the relative state between the axial opposing portion 75 and the protrusion portion 204 from becoming a non-relative state and the connection state between the first joint 100 and the second joint 200 from becoming a non-locked state due to the malfunction of the working portion 71.

[0062] Specifically, the working portion 71 is pushed by the elastic member 11( Figure 7 ) toward the side D1 in the axial direction crossing direction Da. And the cross-direction opposing portion 30 opposes the working portion 71 in the axial direction crossing direction Da between the socket body 50 and the working portion 71 in a relative state between the axial opposing portion 75 and the protrusion portion 204( Figure 7 ). Therefore, the movement of the working portion 71 toward the other side D2 in the axial direction crossing direction Da is restricted by the cross-direction opposing portion 30.

[0063] In addition, as Figure 9 shown, the mounting member 3 is located at the first position P1 on the axial direction AD1. The first position P1 represents the position where the cross-direction opposing portion 30 opposes the working portion 71 in the axial direction crossing direction Da.

[0064] Next, with reference to Figure 10 and Figure 11 , the case where the mounting member 3 is located at the second position P2 will be described. Figure 10 is a plan view of the first joint 100 when the mounting member 3 is located at the second position P2. Figure 11 is a cross-sectional view taken along the XI-XI line of Figure 10 .

[0065] As Figure 10 and Figure 11As shown, the mounting member 3 is located at the second position P2. The second position P2 represents the position where the cross-direction opposing portion 30 moves away from the first position P1 in the axial direction AD1. In other words, the second position P2 represents the position where the cross-direction opposing portion 30 moves rearward in the axial direction AD1 relative to the first position P1. Further in other words, the second position P2 represents the position where the cross-direction opposing portion 30 does not oppose the working portion 71 in the axis-crossing direction Da. Therefore, when the mounting member 3 is located at the second position P2, the movement of the working member 7 in the axis-crossing direction Da is not restricted. As a result, the operator can easily separate the second joint 200 from the first joint 100 by pushing the working portion 71 toward the other side D2 in the axis-crossing direction Da to release the locking by the axially opposing portion 75.

[0066] In addition, in the present embodiment, as an example, the positions of the mounting member 3 (the first position P1 and the second position P2) are represented by the position of the cross-direction opposing portion 30 in the axial direction AD1.

[0067] Next, with reference to Figures 8 to 11 , the movement of the mounting member 3 will be described. The mounting member 3 can move between the first position P1 and the second position P2 along the axial direction AD1. Therefore, according to the present embodiment, the operator can easily switch the connection state between the first joint 100 and the second joint 200 between the locked state and the unlocked state by moving the mounting member 3 between the first position P1 and the second position P2 along the axial direction AD1.

[0068] In addition, in the present embodiment, as shown in Figure 9 and Figure 11 , the first joint body 1 has a first restricting portion 80. Specifically, the socket body 50 has a first restricting portion 80. The first restricting portion 80 restricts the movement of the cross-direction opposing portion 30 between the first position P1 and the second position P2. Therefore, according to the present embodiment, even when an unexpected force such as vibration is applied to the mounting member 3, the movement of the mounting member 3 from the first position P1 to the second position P2 can be suppressed. As a result, even when an unexpected force such as vibration is applied to the mounting member 3, the movement of the working member 7 in the axis-crossing direction Da can be restricted by the cross-direction opposing portion 30. Therefore, the malfunction of the working member 7 can be effectively suppressed, and the connection between the first joint 100 and the second joint 200 can be prevented from becoming unlocked unexpectedly.

[0069] In addition, in the present embodiment, the first restricting portion 80 extends along the axial direction AD1 in a sectional view. For example, in a sectional view, the first restricting portion 80 has a wave shape. In Figure 9 and Figure 11In the example, the first restricting portion 80 has a first concave portion 81 and a convex portion 82. The first concave portion 81 is recessed inward in the radial direction RD1 with respect to the central axis AX1. The convex portion 82 is connected to the first concave portion 81. In addition, the convex portion 82 protrudes outward in the radial direction RD1. The convex portion 82 is farther from the working portion 71 than the first concave portion 81 in the axial direction AD1. That is, the convex portion 82 is located at a position behind the first concave portion 81 in the axial direction AD1. According to the present embodiment, the first restricting portion 80 can be realized by such a simple structure as the first concave portion 81 and the convex portion 82. In addition, as long as the shape of the mounting member 3 is matched to the shape of the first restricting portion 80, a mounting member 3 with a simple structure can be realized.

[0070] Specifically, the first concave portion 81 and the convex portion 82 each have an annular shape extending in the circumferential direction CD1. In addition, as Figure 9 shown, at the first position P1, the rear end portion 320 of the mounting member 3 in the axial direction AD1 is fitted into the first concave portion 81. And the convex portion 82 is adjacent to the first concave portion 81 in the axial direction AD1. Therefore, the mounting member 3 can be effectively prevented from moving from the first position P1 to the second position P2 due to vibration or the like.

[0071] In addition, in the present embodiment, the first restricting portion 80 further has a second concave portion 83. The second concave portion 83 is recessed inward in the radial direction RD1. The second concave portion 83 is connected to the convex portion 82. The second concave portion 83 is farther from the working portion 71 than the convex portion 82 in the axial direction AD1. That is, the second concave portion 83 is located at a position behind the convex portion 82 in the axial direction AD1. In addition, the first joint body 1 has a protruding portion 64. The protruding portion 64 protrudes to a position farther outward in the radial direction RD1 than the vertex VT of the convex portion 82. That is, the maximum outer diameter R1 of the protruding portion 64 is equal to or greater than the maximum outer diameter R2 of the convex portion 82 ( Figure 6 ). The protruding portion 64 is connected to the second concave portion 83 in the axial direction AD1. The protruding portion 64 is farther from the working portion 71 than the second concave portion 83 in the axial direction AD1. That is, the protruding portion 64 is located at a position behind the second concave portion 83 in the axial direction AD1. Therefore, according to the present embodiment, as Figure 11 shown, when the mounting member 3 is in the second position P2, the mounting member 3 can be prevented from coming off backward in the axial direction AD1.

[0072] Specifically, the second concave portion 83 and the protruding portion 64 each have an annular shape extending in the circumferential direction CD1. In addition, as Figure 11 shown, at the second position P2, the rear end portion 320 of the mounting member 3 in the axial direction AD1 is fitted into the second concave portion 83. And the convex portion 82 is adjacent to the second concave portion 83 in the axial direction AD1. Therefore, the mounting member 3 can be effectively prevented from moving from the second position P2 to the first position P1 due to vibration or the like.

[0073] Next, with reference to Figure 8 , Figure 10 , Figure 12 and Figure 13 , another function of the mounting member 3 will be described. Figure 12 FIG. is a plan view showing the mounting member 3. Figure 13 FIG. is a perspective view showing the mounting member 3. As Figure 12 and Figure 13 shown, the mounting member 3 further has a second restricting portion 84. As Figure 8 shown, in a state where the mounting member 3 is in the first position P1, the second restricting portion 84 faces both end faces 710 on the circumferential direction CD1 of the working portion 71 in the circumferential direction CD1. Accordingly, the second restricting portion 84 restricts the movement of the working portion 71 in the circumferential direction CD1. As a result, according to the present embodiment, it is possible to suppress the non-opposition of the crossing-direction opposing portion 30 with respect to the working portion 71 in the axis crossing direction Da. Therefore, it is possible to effectively suppress the malfunction of the working portion 71.

[0074] Specifically, the second restricting portion 84 has a pair of inclined surfaces 840. The inclined surfaces 840 are inclined with respect to the central axis AX1. The pair of inclined surfaces 840 face each other with respect to the central axis AX1 from the front end 5a of the first joint body 1 toward the rear end 91a. Specifically, the pair of inclined surfaces 840 are inclined with respect to the central axis AX1 so as to approach each other from the front end 5a of the first joint body 1 toward the rear end 91a.

[0075] In a state where the mounting member 3 is in the first position P1, the inclined surfaces 840 face the end face 710 of the working portion 71 in the circumferential direction CD1 and are in contact with the end face 710.

[0076] In particular, in the present embodiment, as Figure 8 and Figure 10 shown, in a state where the mounting member 3 is in the first position P1 and in a state where the mounting member 3 is in the second position P2, the second restricting portion 84 faces both end faces 710 on the circumferential direction CD1 of the working portion 71 in the circumferential direction CD1. Accordingly, according to the present embodiment, even when the mounting member 3 is in the second position P2, it is possible to suppress the deviation of the working portion 71 in the circumferential direction CD1. As a result, it becomes easier for the operator to operate the working portion 71.

[0077] In addition, as Figure 10 shown, when the mounting member 3 is in the second position P2, the inclined surfaces 840 of the second restricting portion 84 are separated from the end face 710 of the working portion 71 in the circumferential direction CD1.

[0078] Next, with reference to Figure 8 , Figure 12 and Figure 13, another function of the mounting member 3 will be described. The mounting member 3 has a pair of inclined surfaces 85. The inclined surfaces 85 are inclined with respect to the central axis AX1. The pair of inclined surfaces 85 extend from the front end 5a of the first joint body 1 toward the rear end 91a with respect to the central axis AX1. Therefore, according to the present embodiment, it becomes easier for the operator to move the mounting member 3 from the first position P1 to the second position P2.

[0079] Next, referring to Figure 8 , Figure 12 and Figure 13 , another function of the mounting member 3 will be described. The mounting member 3 has a pair of flat surfaces 86. The pair of flat surfaces 86 intersect the axial direction AD1. Therefore, according to the present embodiment, it becomes easier for the operator to move the mounting member 3 from the second position P2 to the first position P1.

[0080] Next, referring to Figure 8 and Figure 12 , another function of the mounting member 3 will be described. The mounting member 3 further has a third recess 88. The third recess 88 is recessed in the axial direction AD1. The elastic member 11 and the third recess 88 are overlapped and arranged in the axis crossing direction Da ( Figure 4 ). In addition, the elastic member 11 supports the working portion 71 in the axis crossing direction Da. Therefore, according to the present embodiment, contact between the elastic member 11 and the mounting member 3 can be suppressed. As a result, detachment of the elastic member 11 from the first joint body 1 can be suppressed.

[0081] Specifically, the third recess 88 is recessed in the axial direction AD1 from the front end 5a of the first joint body 1 toward the rear end 91a. In addition, the third recess 88 is located between the socket body 50 and the working portion 71.

[0082] Next, referring to Figure 4 and Figures 13 to 15 , another function of the mounting member 3 will be described. Figure 14 is a rear view showing the mounting member 3. As Figure 13 and Figure 14 shown, the mounting member 3 has a bent portion 87 and an opening 873. The bent portion 87 is bent along the circumferential direction CD1 with respect to the central axis AX1. As Figure 4 shown, the bent portion 87 is fitted into the outer peripheral surface of the first joint body 1 (socket body 50). Therefore, according to the present embodiment, the mounting member 3 can be easily mounted on the first joint body 1, and in addition, the mounting member 3 can be easily detached from the first joint body 1. In addition, even when there is a protruding portion 64, the mounting member 3 can be easily mounted on the first joint body 1 (socket body 50).

[0083] Figure 15is a front view showing the first joint 100. As Figure 15 shown, at the bent portion 87, with respect to the central axis AX1, the angle θ formed by one end 871 and the other end 872 of the circumferential direction CD1 of the bent portion 87 is 230 degrees or more and 250 degrees or less. Therefore, according to the present embodiment, it is possible to further easily attach the mounting member 3 to the first joint body 1 (socket body 50), and it is possible to prevent the mounting member 3 from detaching from the first joint body 1 (socket body 50) due to vibration or the like.

[0084] As Figure 13 and Figure 14 shown, the bent portion 87 has a first face 881 and a second face 882. The first face 881 is located at one end of the circumferential direction CD1 of the bent portion 87. The first face 881 extends in the axis crossing direction Da. The second face 882 is located at the other end of the circumferential direction CD1 of the bent portion 87. The second face 882 extends in the axis crossing direction Da. The first face 881 and the second face 882 are parallel. Therefore, according to the present embodiment, the opening 873 of the bent portion 87 is not bent and the width remains unchanged, so it is easy to attach the mounting member 3 to the first joint body 1 (socket body 50).

[0085] (Modification example) Refer to Figures 16 to 19 , and the first joint 100A of the modification example of the first embodiment will be described. In this modification example, it is mainly different from the above-described first embodiment in terms of the rotation of the mounting member 3A along the circumferential direction CD1. Hereinafter, the points different between this modification example and the above-described first embodiment will be mainly described.

[0086] Figure 16 is a perspective view showing the first joint 100A of the modification example of the first embodiment. As Figure 16 shown, the first joint 100A has a mounting member 3A. The mounting member 3A is attached to the first joint body 1 (socket body 50). The mounting member 3A is bent along the circumferential direction CD1. One end 21 and the other end 22 of the circumferential direction CD1 of the mounting member 3A face each other in the circumferential direction CD1. One end 21 and the other end 22 of the mounting member 3A are located at positions spaced apart in the circumferential direction CD1. Therefore, the mounting member 3A has a space SP between one end 21 and the other end 22 of the mounting member 3A.

[0087] Figure 17A is a view showing the first position P1 of the mounting member 3A. Figure 17B is a view showing the second position P2 of the mounting member 3A. Figure 18 is a view showing the first joint 100A when the mounting member 3A is in the first position P1. Figure 19 is a view showing the first joint 100A when the mounting member 3A is in the second position P2.

[0088] As Figure 17A and Figure 17B shown, the mounting member 3A can rotate between a first position P1 and a second position P2 along the circumferential direction CD1 with respect to the central axis AX1. The first position P1 represents the position where the crossing-direction opposing portion 30 is opposed to the working portion 71 in the axis-crossing direction Da. As Figure 18 shown, at the first position P1, the working portion 71 is opposed to the crossing-direction opposing portion 30 in the axis-crossing direction Da. Therefore, the crossing-direction opposing portion 30 restricts the movement of the working portion 71 along the axis-crossing direction Da. As a result, malfunction of the working member 7 can be suppressed. The second position P2 represents the position where the crossing-direction opposing portion 30 moves away from the first position P1 in the circumferential direction CD1. As Figure 19 shown, at the second position P2, the working portion 71 is opposed to the space SP in the axis-crossing direction Da. Therefore, the movement of the working portion 71 along the axis-crossing direction Da is not restricted. As a result, an operator can easily release the lock by pushing the working member 7 toward the other side D2 in the axis-crossing direction Da. In addition, the first position P1 and the second position P2 are separated in the circumferential direction CD1 with respect to the central axis AX1.

[0089] As described above, as described with reference to Figures 16 to 19 , according to this modification example, by rotating the mounting member 3A in the circumferential direction CD1, the connection state between the first joint 100A and the second joint 200 can be easily switched between the locked state and the unlocked state.

[0090] (Second Embodiment) Refer to Figures 20 to 22 , and the first joint 2100 of the second embodiment of the present disclosure will be described. Figure 20 And Figure 21 are cross-sectional views showing the first joint 2100 of the second embodiment. Figure 20 And Figure 21 show a state where the first joint 2100 and the second joint 200 are separated. Figure 20 shows the working member 2007 at the initial position Z0. Figure 21 shows the working member 2007 at the open position Z1.

[0091] In the first joint 100 of the first embodiment, the crossing-direction opposing part 30 of the mounting member 3 is opposed to the working part 71 between the first joint main body 1 and the working part 71 in the axis-crossing direction Da. In contrast, in the first joint 2100 of the second embodiment, the mounting member 2003 has a mounting-member protrusion 2003a disposed in the hole 2071a of the working part 2071. Hereinafter, regarding the second embodiment, matters different from the first embodiment will be described, and the description of parts overlapping with the first embodiment will be omitted.

[0092] The first joint 2100 has a first joint main body 2001, a mounting member 2003, a working part 2071, and an elastic member 2011. Specifically, the first joint 2100 has a working member 2007. And the working member 2007 has a working part 2071. The working part 2071 has a hole 2071a. The hole 2071a may extend along the axial direction AD1, may penetrate the working part 2071, or may not penetrate the working part 2071, and has, for example, a cylindrical shape.

[0093] The first joint main body 2001 extends along the axial direction AD1. The first joint main body 2001 is connected to the second joint 200 along the central axis AX1. The mounting member 2003 is mounted on the outer peripheral surface of the first joint main body 2001. The working member 2007 is operated by an operator to switch the connection state between the first joint main body 2001 and the second joint 200 between a locked state and an unlocked state. The elastic member 2011 supports the working member 2007. As an example, a button is constituted by the working member 2007 (working part 2071) and the elastic member 2011.

[0094] Specifically, the first joint main body 2001 has a socket part 2005 and an insertion part 9. The socket part 2005 has a socket body 2050.

[0095] Next, refer to Figure 20 and Figure 21, the structure related to the working member 2007 and the working member 2007 are described. The socket body 2050 also has a receiving portion 2052. The receiving portion 2052 is provided with a through hole on one side D1 in the axis crossing direction Da of the socket body 2050, and the inner peripheral surface on the other side D2 in the axis crossing direction Da of the socket body 2050 is recessed toward the axis crossing direction Da. The working member 2007 is arranged in the receiving portion 2052 along the axis crossing direction Da. The elastic member 2011 is arranged in the receiving portion 2052 along the axis crossing direction Da. The elastic member 2011 has elasticity. The elastic member 2011 is, for example, a compression coil spring. The elastic member 2011 expands and contracts along the axis crossing direction Da. The elastic member 2011 is arranged between the working member 2007 and the bottom surface 2052a of the receiving portion 2052. The elastic member 2011 supports the working member 2007.

[0096] The working member 2007 also has a pair of connecting portions (not shown) and an axially opposing portion 2075. The pair of connecting portions connect the working portion 2071 and the axially opposing portion 2075.

[0097] In the state where the working member 2007 is arranged in the receiving portion 2052, the elastic member 2011 presses the working portion 2071 toward the side D1 in the axis crossing direction Da. At the initial position Z0, the axially opposing portion 2075 and the protrusion arrangement portion 66 are opposed to each other in the axial direction AD1. That is, at the initial position Z0, the axially opposing portion 2075 is located in front of the protrusion arrangement portion 66 in the axial direction AD1. Therefore, the connection state between the first joint 2100 and the second joint 200 becomes a locked state.

[0098] On the other hand, in the state where the working member 2007 is arranged in the receiving portion 2052, if a force is applied to the working member 2007 toward the other side D2 in the axis crossing direction Da, the working member 2007 moves against the elastic force of the elastic member 2011 from the initial position Z0 to the other side D2 in the axis crossing direction Da. As a result, the axially opposing portion 2075 moves from the initial position Z0 to the open position Z1 and stops. At the open position Z1, the axially opposing portion 2075 is located on the other side D2 in the axis crossing direction Da with respect to the protrusion arrangement portion 66. Therefore, at the open position Z1, the axially opposing portion 2075 and the protrusion arrangement portion 66 are not opposed to each other in the axial direction AD1. As a result, at the open position Z1, the front side in the axial direction AD1 of the protrusion arrangement portion 66 is open. Therefore, the connection state between the first joint 2100 and the second joint 200 becomes a non-locked state.

[0099] If the force applied to the working member 2007 is released, the working member 2007 moves toward the side D1 in the axis crossing direction Da due to the elastic force of the elastic member 2011. That is, the working member 2007 returns to the initial position Z0.

[0100] As described above with reference to Figure 20 and Figure 21 the working portion 2071 switches the relative and non-relative states of the axially opposing portion 2075 and the protrusion 204 on the axial AD1 by working in the direction Da crossing the axis.

[0101] With reference to Figures 20 to 22 the first joint 2100 of the second embodiment will be described. Figure 22 is a cross-sectional view showing the first joint 2100 of the second embodiment. Figure 22 shows the state where the first joint 2100 is separated from the second joint 200. Figure 22 shows the working member 2007 at the initial position Z0.

[0102] As Figures 20 to 22 shown, the mounting member 2003 has a mounting member protrusion 2003a. The mounting member protrusion 2003a is an example of a mounting member restricting portion. The shape of the mounting member protrusion 2003a is not particularly limited as long as it can be inserted into the hole portion 2071a, and is, for example, cylindrical.

[0103] The mounting member protrusion 2003a is disposed in the hole portion 2071a of the working portion 2071 in the relative state of the axially opposing portion 2075 and the protrusion 204. Therefore, according to the second embodiment, the movement of the working portion 2071 in the direction Da crossing the axis is restricted by the mounting member protrusion 2003a. As a result, malfunction of the working portion 2071 can be suppressed. Therefore, it is possible to suppress the relative state of the axially opposing portion 2075 and the protrusion 204 from becoming a non-relative state and the connection state of the first joint 2100 and the second joint 200 from becoming a non-locked state due to malfunction of the working portion 2071.

[0104] In addition, the mounting member 2003 is located at the first position P1 on the axial AD1. The first position P1 represents the position where the mounting member protrusion 2003a is disposed in the hole portion 2071a. In addition, the first position P1 represents Figure 22 the position of the mounting member 2003 in

[0105] On the other hand, the mounting member 2003 is located at the second position P2. The second position P2 represents the position where the mounting member protrusion 2003a is separated from the first position P1 in the axial direction AD1. In other words, the second position P2 represents the position where the mounting member protrusion 2003a is separated rearward in the axial direction AD1 with respect to the first position P1. Further in other words, the second position P2 represents the position where the mounting member protrusion 2003a is not disposed in the hole portion 2071a. In addition, the second position P1 represents Figure 20 and Figure 21The position of the mounting member 2003 in [it]. Thus, when the mounting member 2003 is located at the second position P2, the movement of the working member 2007 in the axial crossing direction Da is not restricted. As a result, the operator can easily separate the second joint 200 from the first joint 2100 by pressing the working portion 2071 toward the other side D2 in the axial crossing direction Da to release the locking by the axially opposing portion 2075.

[0106] In addition, in the second embodiment, as an example, the positions (the first position P1 and the second position P2) of the mounting member 2003 are indicated by the position of the mounting member protrusion 2003a in the axial direction AD1.

[0107] Next, the movement of the mounting member 2003 will be described. The mounting member 2003 can move between the first position P1 and the second position P2 along the axial direction AD1. Therefore, according to the second embodiment, the operator can easily switch the connection state between the first joint 2100 and the second joint 200 between the locked state and the unlocked state by moving the mounting member 2003 between the first position P1 and the second position P2 along the axial direction AD1.

[0108] (Third Embodiment) Refer to Figure 23 and Figure 24 , the first joint 3100 of the third embodiment of the present disclosure will be described. Figure 23 and Figure 24 are cross-sectional views showing the first joint 3100 of the third embodiment. Figure 23 And Figure 24 show the state where the first joint 3100 is separated from the second joint 200. Figure 23 shows the working member 3007 at the initial position Z0 and the mounting member 3003 at the first position P1. Figure 24 shows the working member 3007 at the open position Z1 and the mounting member 3003 at the second position P2.

[0109] In the first joint 2100 of the second embodiment, the mounting member 2003 has the mounting member protrusion 2003a disposed in the hole portion 2071a of the working portion 2071. In contrast, in the first joint 3100 of the third embodiment, the mounting member 3003 has the cover portion 3003a disposed more radially outside than the radially outer surface of the working portion 3071. Hereinafter, regarding the third embodiment, matters different from the second embodiment will be described, and the description of the parts repeated with the second embodiment will be omitted.

[0110] The first joint 3100 has a first joint body 3001, a mounting member 3003, a working part 3071, and an elastic member 3011. Specifically, the first joint 3100 has a working member 3007. Moreover, the working member 3007 has a working part 3071.

[0111] The first joint body 3001 extends along the axial direction AD1. The first joint body 3001 is connected to the second joint 200 along the central axis AX1. The mounting member 3003 is mounted on the outer peripheral surface of the first joint body 3001. The working member 3007 is operated by an operator to switch the connection state between the first joint body 3001 and the second joint 200 between a locked state and an unlocked state. The elastic member 3011 supports the working member 3007. As an example, a button is formed by the working member 3007 (working part 3071) and the elastic member 3011.

[0112] Specifically, the first joint body 3001 has a socket part 3005 and an insertion part 9. The socket part 3005 has a socket body 3050.

[0113] Next, with reference to Figure 23 and Figure 24 , the structure related to the working member 3007 and the working member 3007 will be described. The socket body 3050 also has a storage part 3052. The storage part 3052 is provided with a through hole on one side D1 in the axis crossing direction Da of the socket body 3050, and the inner peripheral surface on the other side D2 in the axis crossing direction Da of the socket body 3050 is recessed toward the axis crossing direction Da. The working member 3007 is arranged in the storage part 3052 along the axis crossing direction Da. The elastic member 3011 is arranged in the storage part 3052 along the axis crossing direction Da. The elastic member 3011 is arranged between the working member 3007 and the bottom surface 3052a of the storage part 3052.

[0114] The working member 3007 also has a pair of connecting parts (not shown) and an axially opposing part 3075. The pair of connecting parts connect the working part 3071 and the axially opposing part 3075.

[0115] In a state where the working member 3007 is disposed in the storage portion 3052, the elastic member 3011 presses the working portion 3071 toward one side D1 in the axis crossing direction Da. At the initial position Z0, the axially opposing portion 3075 and the protrusion disposing portion 66 oppose each other in the axial direction AD1. That is, at the initial position Z0, the axially opposing portion 3075 is located in front of the protrusion disposing portion 66 in the axial direction AD1. Therefore, the connection state between the first joint 3100 and the second joint 200 becomes a locked state. In addition, at the initial position Z0, the surface on the outer side in the radial direction RD1 of the working member 3007 and the surface on the outer side in the radial direction RD1 of the first joint body 3001 are substantially coplanar. Alternatively, the surface on the outer side in the radial direction RD1 of the working member 3007 may be disposed closer to the inner side in the radial direction RD1 than the surface on the outer side in the radial direction RD1 of the first joint body 3001.

[0116] On the other hand, in a state where the working member 3007 is disposed in the storage portion 3052, if a force is applied to the working member 3007 toward the other side D2 in the axis crossing direction Da, the working member 3007 resists the elastic force of the elastic member 3011 and moves from the initial position Z0 to the other side D2 in the axis crossing direction Da. As a result, the axially opposing portion 3075 moves from the initial position Z0 to the open position Z1 and stops. At the open position Z1, the axially opposing portion 3075 is located at a position on the other side D2 in the axis crossing direction Da with respect to the protrusion disposing portion 66. Therefore, at the open position Z1, the axially opposing portion 3075 and the protrusion disposing portion 66 do not oppose each other in the axial direction AD1. As a result, at the open position Z1, the front side in the axial direction AD1 of the protrusion disposing portion 66 is open. Therefore, the connection state between the first joint 3100 and the second joint 200 becomes an unlocked state.

[0117] If the force applied to the working member 3007 is released, the working member 3007 moves toward one side D1 in the axis crossing direction Da due to the elastic force of the elastic member 3011. That is, the working member 3007 returns to the initial position Z0.

[0118] As described above, as referred to Figure 23 and Figure 24 The working portion 3071 switches the relative state and the non-relative state between the axially opposing portion 3075 and the protrusion 204 in the axial direction AD1 by operating in the axis crossing direction Da.

[0119] As Figure 23 and Figure 24 shown, the mounting member 3003 has a cover portion 3003a. The cover portion 3003a is an example of a mounting member restricting portion. The cover portion 3003a is, for example, a plate-like body.

[0120] In a state where the axially opposing portion 3075 and the protruding portion 204 are opposed to each other, the cover portion 3003a is arranged to be on the outer side in the radial direction RD1 with respect to the surface on the outer side of the radial direction RD1 of the working portion 3071. That is, the cover portion 3003a covers the surface on the outer side of the radial direction RD1 of the working portion 3071. Therefore, according to the third embodiment, contact with the working portion 3071 is blocked by the cover portion 3003a. In other words, according to the third embodiment, movement of the working portion 3071 in the axis-crossing direction Da is restricted by the cover portion 3003a. As a result, malfunction of the working portion 3071 can be suppressed. Therefore, it is possible to suppress the relative state between the axially opposing portion 3075 and the protruding portion 204 from becoming a non-opposing state and the connection state between the first joint 3100 and the second joint 200 from becoming a non-locked state due to malfunction of the working portion 3071.

[0121] In addition, the mounting member 3003 is located at the first position P1 in the axial direction AD1. The first position P1 represents the position where the cover portion 3003a is opposed to the working portion 3071 in the axis-crossing direction Da. In addition, the first position P1 represents Figure 23 the position of the mounting member 3003 in

[0122] On the other hand, the mounting member 3003 is located at the second position P2. The second position P2 represents the position where the cover portion 3003a is separated from the first position P1 in the axial direction AD1. In other words, the second position P2 represents the position where the cover portion 3003a is separated rearward in the axial direction AD1 with respect to the first position P1. Further in other words, the second position P2 represents the position where the cover portion 3003a is not opposed to the working portion 3071 in the axis-crossing direction Da. In addition, the second position P2 represents Figure 24 the position of the mounting member 3003 in

[0123] Therefore, when the cover portion 3003a is located at the second position P2, contact with the working member 3007 is not blocked. As a result, the operator can easily separate the second joint 200 from the first joint 3100 by pushing the working portion 3071 toward the other side D2 in the axis-crossing direction Da to release the locking using the axially opposing portion 3075.

[0123] In addition, in the third embodiment, as an example, the positions (the first position P1 and the second position P2) of the mounting member 3003 are represented by the position of the cover portion 3003a in the axial direction AD1.

[0124] Next, the movement of the mounting member 3003 will be described. The mounting member 3003 is capable of moving between a first position P1 and a second position P2 along the axial direction AD1. Therefore, according to the third embodiment, the operator can easily switch the connection state between the first joint 3100 and the second joint 200 between the locked state and the unlocked state by moving the mounting member 3003 between the first position P1 and the second position P2 along the axial direction AD1 on the outer surface of the socket body 3050 in the radial direction RD1.

[0125] (Fourth Embodiment) Refer to Figures 25 to 27 , and the first joint 4100 of the fourth embodiment of the present disclosure will be described. Figure 25 and Figure 26 are cross-sectional views showing the first joint 4100 of the fourth embodiment. Figure 25 and Figure 26 show the state where the first joint 4100 is separated from the second joint 200. Figure 25 shows the working member 4007 at the initial position Z0 and the mounting member 4003 at the first position P1. Figure 26 shows the working member 4007 at the open position Z1 and the mounting member 4003 at the second position P2.

[0126] In the first joint 3100 of the third embodiment, at the first position P1, the inner surface in the radial direction RD1 of the cover portion 3003a contacts the outer surface in the radial direction RD1 of the working portion 3071. In contrast, in the fourth joint 4100 of the fourth embodiment, at the first position P1, the inner surface in the radial direction RD1 of the cover portion 4003a faces the outer surface in the radial direction RD1 of the working portion 4071 with a space therebetween. Hereinafter, regarding the fourth embodiment, matters different from the third embodiment will be described, and the description of the parts repeated with the third embodiment will be omitted.

[0127] The first joint 4100 includes a first joint body 4001, a mounting member 4003, a working portion 4071, and an elastic member 4011. Specifically, the first joint 4100 includes a working member 4007. And the working member 4007 includes a working portion 4071.

[0128] The first joint body 4001 extends along the axial direction AD1. The first joint body 4001 is connected to the second joint 200 along the central axis AX1. The mounting member 4003 is mounted on the outer peripheral surface of the first joint body 4001. The working member 4007 is operated by an operator to switch the connection state between the first joint body 4001 and the second joint 200 between a locked state and an unlocked state. The elastic member 4011 supports the working member 4007. As an example, the working member 4007 (working portion 4071) and the elastic member 4011 form a button.

[0129] Specifically, the first joint body 4001 has a socket portion 4005 and an insertion portion 9. The socket portion 4005 has a socket body 4050.

[0130] Next, with reference to Figure 25 , the structure related to the working member 4007 and the working member 4007 will be described. The socket body 4050 also has a storage portion 4052. The storage portion 4052 is provided with a through hole on one side D1 in the axis crossing direction Da of the socket body 4050, and the inner peripheral surface on the other side D2 in the axis crossing direction Da of the socket body 4050 is recessed toward the axis crossing direction Da. The working member 4007 is arranged in the storage portion 4052 along the axis crossing direction Da. The elastic member 4011 is arranged in the storage portion 4052 along the axis crossing direction Da. The elastic member 4011 is arranged between the working member 4007 and the bottom surface 4052a of the storage portion 4052.

[0131] The working member 4007 also has a pair of connecting portions (not shown) and an axially opposing portion 4075. The pair of connecting portions connect the working portion 4071 and the axially opposing portion 4075.

[0132] In a state where the working member 4007 is arranged in the storage portion 4052, the elastic member 4011 presses the working portion 4071 toward the side D1 in the axis crossing direction Da. At the initial position Z0, the axially opposing portion 4075 is axially opposed to the protrusion arrangement portion 66 in the axial direction AD1. That is, at the initial position Z0, the axially opposing portion 4075 is located in front of the protrusion arrangement portion 66 in the axial direction AD1. Therefore, the connection state between the first joint 4100 and the second joint 200 becomes a locked state. In addition, at the initial position Z0, the surface on the outer side in the radial direction RD1 of the working member 4007 is arranged to be more radially outward than the surface on the outer side in the radial direction RD1 of the first joint body 4001.

[0133] On the other hand, in a state where the working member 4007 is disposed in the accommodating portion 4052, if a force is applied to the working member 4007 toward the other side D2 in the axis crossing direction Da, the working member 4007 resists the elastic force of the elastic member 4011 and moves from the initial position Z0 to the other side D2 in the axis crossing direction Da. As a result, the axially opposing portion 4075 moves from the initial position Z0 to the open position Z1 and stops. At the open position Z1, the axially opposing portion 4075 is located on the other side D2 in the axis crossing direction Da with respect to the protrusion arranging portion 66. Therefore, at the open position Z1, the axially opposing portion 4075 does not oppose the protrusion arranging portion 66 in the axial direction AD1. As a result, in the open position Z1, the front side in the axial direction AD1 of the protrusion arranging portion 66 is open. Therefore, the connection state between the first joint 4100 and the second joint 200 becomes a non-locked state.

[0134] If the force applied to the working member 4007 is released, the working member 4007 moves toward the side D1 in the axis crossing direction Da due to the elastic force of the elastic member 4011. That is, the working member 4007 returns to the initial position Z0.

[0135] As described above, as referred to Figure 25 and Figure 26 the working portion 4071 switches the relative state and the non-relative state between the axially opposing portion 4075 and the protrusion 204 on the axial direction AD1 by operating in the axis crossing direction Da.

[0136] As Figure 25 and Figure 26 shown, the mounting member 4003 has a cover portion 4003a. The cover portion 4003a is an example of a mounting member restricting portion. The cover portion 4003a is, for example, a plate-like body.

[0137] The cover portion 4003a is disposed outside the radial direction RD1 of the surface of the working portion 4071 in the relative state between the axially opposing portion 4075 and the protrusion 204. That is, the cover portion 4003a covers the surface outside the radial direction RD1 of the working portion 4071. Therefore, according to the fourth embodiment, contact with the working portion 4071 is blocked by the cover portion 4003a. In other words, according to the fourth embodiment, movement of the working portion 4071 in the axis crossing direction Da is restricted by the cover portion 4003a. As a result, malfunction of the working portion 4071 can be suppressed. Therefore, it is possible to suppress the relative state between the axially opposing portion 4075 and the protrusion 204 from becoming a non-relative state and the connection state between the first joint 4100 and the second joint 200 from becoming a non-locked state due to malfunction of the working portion 4071.

[0138] In addition, the mounting member 4003 is located at the first position P1 on the axial direction AD1. The first position P1 represents the position where the cover portion 4003a faces the working portion 4071 in the axial intersection direction Da. Specifically, at the first position P1, the surface on the inner side of the radial direction RD1 of the cover portion 4003a faces the surface on the outer side of the radial direction RD1 of the working portion 4071 with a space therebetween. In addition, the first position P1 represents Figure 25 the position of the mounting member 4003 in

[0139] On the other hand, the mounting member 4003 is located at the second position P2. The second position P2 represents the position where the cover portion 4003a moves away from the first position P1 in the axial direction AD1. In other words, the second position P2 represents the position where the cover portion 4003a moves away from the first position P1 to the rear in the axial direction AD1. Further in other words, the second position P2 represents the position where the cover portion 4003a does not face the working portion 4071 in the axial intersection direction Da. In addition, the second position P2 represents Figure 26 the position of the mounting member 4003 in

[0140] Therefore, when the cover portion 4003a is located at the second position P2, the contact with the working member 4007 is not hindered. As a result, the operator can easily separate the second joint 200 from the first joint 4100 by pushing the working portion 4071 toward the other side D2 in the axial intersection direction Da to release the locking by the axial opposing portion 4075.

[0141] In addition, in the fourth embodiment, as an example, the positions (the first position P1 and the second position P2) of the mounting member 4003 are represented by the position of the cover portion 4003a in the axial direction AD1.

[0142] Next, the movement of the mounting member 4003 will be described. The mounting member 4003 can move between the first position P1 and the second position P2 along the axial direction AD1. Therefore, according to the fourth embodiment, the operator can easily switch the connection state between the first joint 4100 and the second joint 200 between the locked state and the unlocked state by moving the mounting member 4003 between the first position P1 and the second position P2 along the axial direction AD1. In addition, even when the cover portion 4003a is deflected by an external force, contact with the working portion 4071 can be suppressed, and malfunction of the working portion 4071 can be suppressed.

[0142] Next, with reference to Figure 27 , another function of the mounting member 4003 will be described. Figure 27 is a cross-sectional view showing the mounting member 4003. As shown in Figure 27As shown, the mounting member 4003 also has a movement restricting portion 4084. The movement restricting portion 4084 is, for example, a pair of side walls. The pair of side walls extend from the end portion of the cover portion 4003a along the axis crossing direction Da. Specifically, in a state where the mounting member 4003 is located at the first position P1, the movement restricting portion 4084 faces the both end surfaces 4710 on the circumferential direction CD1 of the working portion 4071 in the circumferential direction CD1. Therefore, the movement restricting portion 4084 restricts the movement of the mounting member 4003 in the circumferential direction CD1. As a result, according to the fourth embodiment, it is possible to suppress the cover portion 4003a from not facing the working portion 4071 in the axis crossing direction Da. Therefore, it is possible to effectively suppress the malfunction of the working portion 4071.

[0143] In addition, in a state where the mounting member 4003 is located at the first position P1, the movement restricting portion 4084 faces the end surface 4710 of the working portion 4071 in the circumferential direction CD1 and is in contact with the end surface 4710.

[0144] As described above, the embodiments of the present disclosure have been described with reference to the drawings. However, the present disclosure is not limited to the above embodiments and can be implemented in various ways without departing from the gist thereof. In addition, a plurality of structural elements disclosed in the above embodiments can be appropriately changed. For example, one structural element among all the structural elements shown in a certain embodiment can be added to the structural elements of another embodiment, or several structural elements among all the structural elements shown in a certain embodiment can be deleted from the embodiment.

[0145] In addition, in order to easily understand the disclosure, the drawings schematically show the main bodies of the respective structural elements, and for the convenience of drawing, the thickness, length, number, interval, etc. of the structural elements shown in the drawings are sometimes different from the actual ones. In addition, the structure of each structural element shown in the above embodiments is an example and is not particularly limited, and it goes without saying that various changes can be made without substantially departing from the effects of the present disclosure.

[0146] [1] The mounting members 3 and 3A may also be arranged on the second joint 200.

[0147] In addition, the present technology can adopt the following structure.

[0148] (1) A first joint having a central axis and extending in the axial direction along the central axis, the first joint having: A first joint main body that is connected to a second joint along the central axis; An axially facing portion that faces a protruding portion protruding from the outer peripheral surface of the second joint from the front end side in the axial direction of the first joint main body in the axial direction in a state where the first joint main body is connected to the second joint; A working part, which is connected to the axially opposing part and switches the relative state and non-relative state between the axially opposing part and the protrusion part in the axial direction by working in a direction intersecting with the axis intersecting the central axis; and A mounting member, which is mounted on the outer peripheral surface of the first joint body, The mounting member has a working part restricting portion, and in the relative state between the axially opposing part and the protrusion part, the working part restricting portion restricts the movement of the working part.

[0149] (2) A first joint, having a central axis and extending in the axial direction along the central axis, the first joint having: A first joint body, which is connected to a second joint along the central axis; An axially opposing part, in a state where the first joint body is connected to the second joint, the axially opposing part is axially opposed to a protrusion part protruding from the outer peripheral surface of the second joint from the front end side in the axial direction of the first joint body; A working part, which is connected to the axially opposing part and switches the relative state and non-relative state between the axially opposing part and the protrusion part in the axial direction by working in a direction intersecting with the axis intersecting the central axis; and A mounting member, which is mounted on the outer peripheral surface of the first joint body, The mounting member has a cross-direction opposing part, and in the relative state between the axially opposing part and the protrusion part, the cross-direction opposing part is opposed to the working part in the axis intersecting direction between the first joint body and the working part.

[0150] (3) In the first joint according to (2), the mounting member is movable along the axial direction between a first position and a second position, The first position represents a position where the cross-direction opposing part is opposed to the working part in the axis intersecting direction, The second position represents a position where the cross-direction opposing part moves away from the first position in the axial direction.

[0151] (4) In the first joint according to (3), the first joint body has a first restricting part, and the first restricting part restricts the movement of the cross-direction opposing part between the first position and the second position.

[0152] (5) In the first joint according to (4), the first restricting part has: A first concave part, which is recessed inward in the radial direction with respect to the central axis; and A convex portion, which is connected to the first concave portion and protrudes toward the radially outer side, The convex portion is further axially away from the working portion than the first concave portion.

[0153] (6) In the first joint according to (5), the first restricting portion further has a second concave portion that is recessed toward the radially inner side, The second concave portion is connected to the convex portion and is further axially away from the working portion than the convex portion, The first joint body further has a protruding portion that is axially connected to the second concave portion and is further axially away from the working portion than the second concave portion, The maximum outer diameter of the protruding portion is equal to or greater than the maximum outer diameter of the convex portion.

[0154] (7) In the first joint according to any one of (2) to (6), the mounting member has: A bent portion that bends along the circumferential direction with respect to the central axis; and An opening, The bent portion is fitted to the outer peripheral surface of the first joint body.

[0155] (8) In the first joint according to (7), the angle formed by one end and the other end of the bent portion in the circumferential direction with respect to the central axis is 230 degrees or more and 250 degrees or less.

[0156] (9) In the first joint according to (7) or (8), the bent portion has: A first surface portion that is located at one end portion of the bent portion in the circumferential direction and extends along the axis crossing direction; and A second surface portion that is located at the other end portion of the bent portion in the circumferential direction and extends along the axis crossing direction, The first surface portion is parallel to the second surface portion.

[0157] (10) In the first joint according to any one of (3) to (9), the mounting member further has a second restricting portion that restricts the movement of the working portion in the circumferential direction with respect to the central axis, The second restricting portion faces the two end faces of the working portion in the circumferential direction.

[0158] (11) In the first joint according to (10), in the state where the mounting member is in the first position and the state where the mounting member is in the second position, the second restricting portion faces the two end faces of the working portion in the circumferential direction.

[0159] (12) In the first joint according to any one of (2) to (11), the mounting member has a pair of inclined surfaces inclined with respect to the central axis, and the pair of inclined surfaces extend with respect to the central axis from the front end of the first joint body toward the rear end.

[0160] (13) In the first joint according to any one of (2) to (12), the mounting member has a pair of planes intersecting the axial direction.

[0161] (14) In the first joint according to any one of (2) to (13), there is also an elastic member, which is arranged along the axis intersection direction and has elasticity, the mounting member further has a third recess recessed toward the axial direction, the elastic member and the third recess are arranged to overlap in the axis intersection direction and support the working portion in the axis intersection direction.

[0162] (15) In the first joint according to (2), the mounting member can rotate between a first position and a second position along the circumferential direction with respect to the central axis, the first position represents the position where the intersection direction relative portion is opposite to the working portion in the axis intersection direction, the second position represents the position where the intersection direction relative portion moves away from the first position in the circumferential direction.

[0163] (16) A pipe joint, comprising: the first joint according to any one of (2) to (15); and the second joint.

[0164] (17) In the first joint according to (1), the working portion has a hole portion extending along the axial direction, the mounting member has a mounting member protrusion as the working portion restricting portion, and in the relative state of the axial relative portion and the protrusion, the mounting member protrusion is arranged in the hole portion.

[0165] (18) In the first joint according to (1), the mounting member has a cover portion as the working portion restricting portion, and in the relative state of the axial relative portion and the protrusion, the cover portion is arranged to be radially outside the radially outer surface of the working portion.

[0166] (19) In the first joint according to (18), the mounting member can move between a first position and a second position along the axial direction, The first position represents the relative position of the cover portion with respect to the working portion in the direction of the intersection of the axes. The second position represents the position where the cover portion moves away from the first position in the axial direction. In the first position, the surface on the radially inner side of the cover portion faces the surface on the radially outer side of the working portion with a space therebetween.

[0167] (20) In the first joint according to (18) or (19), the mounting member further has a movement restricting portion that restricts the movement of the mounting member in the circumferential direction with respect to the central axis. In the relative state of the axially opposing portion and the protruding portion, the working portion is arranged to be radially outside of the radially outer surface of the first joint body. In the relative state of the axially opposing portion and the protruding portion, the movement restricting portion faces the both end surfaces of the working portion in the circumferential direction in the circumferential direction.

[0168] (21) A pipe joint includes: the first joint according to any one of (1) or (17) to (20); and the second joint. Industrial applicability

[0169] The present disclosure can be used, for example, for the first joint and the pipe joint. Symbol description

[0170] 1 First joint body 3, 3A Mounting member 11 Elastic member 30 Opposing portion in the intersection direction 64 Protruding portion 71 Working portion 75 Axially opposing portion 80 First restricting portion 81 First recess 82 Protruding portion 83 Second recess 84 Second restricting portion 85 Inclined surface 86 Flat surface 87 Bending portion 88 Third recess 100, 100A First joint 200 Second joint 204 Protruding portion 881 First face 882 Second face 2003a Mounting member protrusion (working part restricting part) 3003a, 4003a Cover part (working part restricting part) 2071a Hole part AX1 Central axis

Claims

1. A first joint, The first joint has a central axis and extends axially along the central axis, characterized in that, having: A first joint body that is connected to a second joint along the central axis; An axially opposing portion that, in a state where the first joint body is connected to the second joint, is axially opposed to a protruding portion protruding from the outer peripheral surface of the second joint from the front end side in the axial direction of the first joint body; An operating portion that is connected to the axially opposing portion and switches the relative state and non-relative state between the axially opposing portion and the protruding portion by operating along an axis-crossing direction that crosses the central axis; and A mounting member that is mounted on the outer peripheral surface of the first joint body, wherein the mounting member has an operating portion restricting portion that restricts the movement of the operating portion in the relative state between the axially opposing portion and the protruding portion.

2. A first joint, The first joint has a central axis and extends axially along the central axis, characterized in that, having: A first joint body that is connected to a second joint along the central axis; An axially opposing portion that, in a state where the first joint body is connected to the second joint, is axially opposed to a protruding portion protruding from the outer peripheral surface of the second joint from the front end side in the axial direction of the first joint body; An operating portion that is connected to the axially opposing portion and switches the relative state and non-relative state between the axially opposing portion and the protruding portion by operating along an axis-crossing direction that crosses the central axis; and A mounting member that is mounted on the outer peripheral surface of the first joint body, wherein the mounting member has a cross-direction opposing portion that, in the relative state between the axially opposing portion and the protruding portion, is opposed to the operating portion in the axis-crossing direction between the first joint body and the operating portion.

3. The first joint according to claim 2, wherein the mounting member is movable along the axial direction between a first position and a second position, the first position represents a position where the cross-direction opposing portion is opposed to the operating portion in the axis-crossing direction, the second position represents a position where the cross-direction opposing portion moves away from the first position in the axial direction.

4. The first joint according to claim 3, wherein the first joint body has a first restricting portion that restricts the movement of the cross-direction opposing portion between the first position and the second position.

5. The first joint according to claim 4, wherein the first restricting portion has: A first concave portion that is recessed radially inward with respect to the central axis; and A convex portion that is connected to the first concave portion and protrudes radially outward, wherein the convex portion is further axially away from the operating portion than the first concave portion.

6. The first joint according to claim 5, wherein the first restricting portion further has a second concave portion that is recessed radially inward, The second concave portion is connected to the convex portion and is more axially distant from the working portion than the convex portion. The first joint body further has a protruding portion that is axially connected to the second concave portion and is more axially distant from the working portion than the second concave portion. The maximum outer diameter of the protruding portion is greater than or equal to the maximum outer diameter of the convex portion.

7. The first joint according to any one of claims 2 to 6, characterized in that The mounting member has: a bent portion that bends along the circumferential direction with respect to the central axis; and an opening, The bent portion is fitted to the outer peripheral surface of the first joint body.

8. The first joint according to claim 7, characterized in that With respect to the central axis, the angle formed by one end and the other end of the circumferential direction of the bent portion is 230 degrees or more and 250 degrees or less.

9. The first joint according to claim 7, characterized in that The bent portion has: a first face portion that is located at one end portion in the circumferential direction of the bent portion and extends along the direction crossing the axis; and a second face portion that is located at the other end portion in the circumferential direction of the bent portion and extends along the direction crossing the axis, The first face portion is parallel to the second face portion.

10. The first joint according to any one of claims 3 to 6, characterized in that The mounting member further has a second restricting portion that restricts the movement of the working portion in the circumferential direction with respect to the central axis, The second restricting portion faces the two end faces of the working portion in the circumferential direction in the circumferential direction.

11. The first joint according to claim 10, characterized in that In a state where the mounting member is in the first position and a state where the mounting member is in the second position, the second restricting portion faces the two end faces of the working portion in the circumferential direction in the circumferential direction.

12. The first joint according to any one of claims 2 to 6, characterized in that The mounting member has a pair of inclined surfaces that are inclined with respect to the central axis, The pair of inclined surfaces expand from the front end to the rear end of the first joint body with respect to the central axis.

13. The first joint according to any one of claims 2 to 6, characterized in that The mounting member has a pair of flat surfaces that cross the axial direction.

14. The first joint according to any one of claims 2 to 6, characterized in that It further has an elastic member that is arranged along the direction crossing the axis and has elasticity, The mounting member further has a third concave portion that is recessed toward the axial direction, The elastic member and the third concave portion are arranged to overlap in the direction crossing the axis and support the working portion in the direction crossing the axis.

15. The first joint according to claim 2, characterized in that The mounting member can rotate between a first position and a second position along the circumferential direction with respect to the central axis. The first position represents the relative position of the cross-direction relative part with respect to the working part in the axis crossing direction. The second position represents the position where the cross-direction relative part departs from the first position in the circumferential direction.

16. A pipe joint, characterized in that, Comprising: The first joint according to any one of claims 2 to 6; and The second joint.

17. The first joint according to claim 1, wherein The working part has a hole part extending along the axial direction, The mounting member has a mounting member protrusion as the working part restricting part. In the relative state of the axial relative part and the protrusion part, the mounting member protrusion is disposed in the hole part.

18. The first joint according to claim 1, wherein The mounting member has a cover part as the working part restricting part. In the relative state of the axial relative part and the protrusion part, the cover part is disposed radially outside the radially outer surface of the working part.

19. The first joint according to claim 18, wherein The mounting member is movable along the axial direction between a first position and a second position, The first position represents the relative position of the cover part with respect to the working part in the axis crossing direction, The second position represents the position where the cover part departs from the first position in the axial direction, At the first position, the radially inner surface of the cover part faces the radially outer surface of the working part with a space therebetween.

20. The first joint according to claim 18 or 19, wherein The mounting member further has a movement restricting part that restricts the movement of the mounting member in the circumferential direction with respect to the central axis, In the relative state of the axial relative part and the protrusion part, the working part is disposed radially outside the radially outer surface of the first joint body, In the relative state of the axial relative part and the protrusion part, the movement restricting part faces the both end faces of the working part in the circumferential direction in the circumferential direction.

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