JP5059570B2 - Fittings and sockets - Google Patents

Description

  The present invention relates to a pipe joint suitable for food piping.

  Since pipes for feeding foods and beverages have a problem of propagation of various germs, it is usually necessary to disassemble and clean each time they are used. For this purpose, pipe joints are used so that the pipes can be disassembled.

  In the pipe joint, the male joint member inserted into the female joint member is locked with both the joint members by engaging the balls provided on the female joint member with the recesses of the male joint member. These types are widely used, but are not suitable for food piping because they are difficult to disassemble and therefore difficult to clean.

  For this reason, as a joint for piping for food, a ferrule joint is widely used in which a packing is sandwiched between two joint pipes for connection, the whole is connected by a clamp part, and is fastened with a screw. However, this joint has drawbacks such as difficulty in pipe connection work and connection release work.

On the other hand, patent document 1 is disclosing the pipe joint connected rapidly. This pipe joint is composed of a first ring connected to one pipe, an operation ring that can be rotated by the ring, one end locked to the one ring, and the other end being a long hole of the operation ring. And a second ring connected to the other tube. When the second ring is inserted into the first ring, the second ring moves the spring member radially outward. The spring member is engaged with a fitting groove formed on the outer peripheral surface of the second ring, and the second ring is connected to the first ring. When removing the second ring, the operation ring is rotated to displace the other end of the spring member radially outward so that the second ring can be removed from the first ring.
Japanese Utility Model Publication No. 4-71957

  However, the joint proposed in Patent Document 1 has a large number of parts, and is easy to disassemble (decomposability) and easy to clean (cleanability) required for pipe joints in the food and beverage fields. Not fully satisfied.

  Therefore, an object of the present invention is to provide a joint that can be connected by a simple operation and has excellent decomposability and cleanability.

That is, the present invention
In a joint (1) comprising a socket (2) and a plug (3) inserted and connected to the socket (2),
Socket (2)
A cylindrical socket body (10) for receiving a plug (3), which is a long and narrow arc-shaped opening extending in the circumferential direction having a first end portion (11a) and a second end portion (11b) separated in the circumferential direction ( 11) a socket body (10) having
A plug locking member (20) rotatably attached to the outer peripheral surface of the socket body (10), and is formed in the socket body (10) from the first end (11a) side through the opening (11). A locking spring portion (21) having a distal end portion (21a) slidably engaged with the second end portion (11b) and extending toward the second end portion, and the plug locking member (20) By rotating the socket body (10) in the direction from the first end (11a) to the second end (11b), the tip (21a) is moved to the second end (11b). A plug locking member (20) configured to slide radially upward of the socket body (10) and thereby displace the locking spring portion (21) radially outward. Have
The plug (3)
The socket body (10) has an insertion portion (31) to be inserted while pushing out the locking spring portion (21) radially outward, and a concave portion (32) is provided on the outer peripheral surface of the insertion portion (31). When the insertion portion (31) is inserted to a predetermined position of the socket body (10), the locking spring portion (21) is made to enter the recess (32) by its elastic force. A featured joint (1) is provided.

  By comprising in this way, a number of parts can be decreased and a decomposability | degradability and a washability can be made favorable.

  Specifically, it is configured as follows.

  A pair of support portions (22) set so that the plug locking member (20) is slidable in the circumferential direction on the outer peripheral surface of the socket body (10) on both sides of the opening (11); and the locking spring The portion (21) is disposed between the pair of support portions (22), and has a connection portion (23) connected to the pair of support portions (22), and the locking spring portion (21) is the connection portion. It extends from the connecting portion with (23) to the tip (21a).

  The pair of support portions (22), the locking spring portion (21), and the connecting portion (23) are integrally formed from a single sheet-like member.

  Further, at this time, the connecting portion (23) is provided so as to extend between the pair of support portions (22), and the locking spring portion (21) extends from one circumferential end of the connecting portion (23) in the radial direction. It is folded outward and reversed, and extends between the pair of support portions (22) from the other end side of the connecting portion (23) in the circumferential direction.

  A pair of the openings (11) are provided so as to face each other in the diameter direction of the socket body (10), and a pair of the locking spring portions (21) is provided corresponding to each opening (11).

The present invention also provides a cylindrical socket body (10) for receiving a plug (3) in a socket (2) of a joint comprising a socket (2) and a plug (3) inserted and connected to the socket (2). A socket body (10) having an elongated arc-shaped opening (11) extending in the circumferential direction having a first end (11a) and a second end (11b) separated in the circumferential direction;
A plug locking member (20) rotatably attached to the outer peripheral surface of the socket body (10), and is formed in the socket body (10) from the first end (11a) side through the opening (11). A locking spring portion (21) having a distal end portion (21a) that extends toward the second end portion (11b) and slidably engages with the second end portion (11b). 20) by rotating the socket body (10) from the first end (11a) side to the second end (11b) side, the tip (21a) becomes the second end. (11b) A plug locking member (20) that is displaced on the outer side in the radial direction of the socket body (10) by sliding on (11b), so that the locking spring portion (21) is displaced radially outward. A socket (2) having

  Specifically, it is configured as follows.

  A pair of support portions (22) set so that the plug locking member (20) is slidable in the circumferential direction on the outer peripheral surface of the socket body (10) on both sides of the opening (11); and the locking spring The portion (21) is disposed between the pair of support portions (22), and has a connection portion (23) connected to the pair of support portions (22), and the locking spring portion (21) is the connection portion. It extends from the connecting portion with (23) to the tip (21a).

  The pair of support portions (22), the locking spring portion (21), and the connecting portion (23) are integrally formed from a single sheet-like member.

  Further, at this time, the connecting portion (23) is provided so as to extend between the pair of support portions (22), and the locking spring portion (21) extends from one circumferential end of the connecting portion (23) in the radial direction. It is folded outward and reversed, and extends between the pair of support portions (22) from the other end side of the connecting portion (23) in the circumferential direction.

  A pair of the openings (11) are provided so as to face each other in the diameter direction of the socket body (10), and a pair of the locking spring portions (21) is provided corresponding to each opening (11).

  Hereinafter, embodiments of a joint according to the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 3, the joint 1 of this embodiment includes a socket 2 and a plug 3 inserted and connected to the socket 2. The socket 2 includes a cylindrical socket body 10 that receives the plug, and a socket body. The plug locking member 20 is rotatably mounted on the outer peripheral surface of the 10.

  A pair of elongated arc-shaped openings 11 are provided in the socket body 10 so as to face each other in the diameter direction of the socket body 10 (FIG. 2).

  The plug locking member 20 includes a pair of locking spring portions 21 that are passed through the opening 11, a pair of support portions 22 that are set to be slidable in the circumferential direction on the outer peripheral surface of the socket body 10, and the locking spring portion 21. Is disposed between the pair of support portions 22 and includes a connection portion 23 connected to the pair of support portions 22. The support portion 22 has a ring shape, is provided with a slit 25, and is easily attached to and detached from the socket body 10. Further, in the vicinity of the slit, a support portion connecting portion 23 ′ for reinforcingly connecting the pair of support portions 22 is provided.

  The locking spring portion 21 extends from the connecting portion 23 through the opening 11 to the second end portion 11b side from the first end portion 11a side of the opening, and the linear tip end portion 21a slides on the second end portion 11b. Engagement possible. The intermediate portion 21 b has a curved shape corresponding to the concave portion 32 of the plug 3.

  The plug 3 has an insertion portion 31 to be inserted into the socket body 10, and has a recess 32 on the outer peripheral surface of the insertion portion 31. A seal member 33 (FIG. 5) made of an ethylene propylene (EPDM) material is detachably attached to the tip. In addition, a silicon-based material, a fluorine-based material, or the like can be used as a material for forming the seal member. Further, a taper portion 34 is provided between the seal member 33 and the recess 32 to push the locking spring portion 21 in the diameter direction of the socket body 10. Since the tapered portion 34 is provided, the locking spring portion 21 smoothly enters the concave portion 32 by its elastic force when the insertion portion 31 is inserted to a predetermined position of the socket body 10.

  In the present embodiment, the pair of support portions 22, the locking spring portion 21, and the connecting portion 23 in the plug locking member 20 are integrally formed from a single sheet-like member. That is, the locking spring portion 21 is formed by cutting out a sheet-like member so that a predetermined long tongue piece (not shown) is formed, and then turning the tongue piece back from the connecting portion 23 to form a plug. 3 is bent into a shape corresponding to the three concave portions 32, and the tip portion 21a is formed in a straight line.

  In the present embodiment, as shown in FIGS. 1 and 8, the base 12 of the socket body 10 and the base 35 of the plug 3 are formed so as to extend outward in the diameter direction over the entire outer circumference. The outer diameters of the base 12 and the base 35 are larger than the outer diameter of the plug locking member 20. Accordingly, even if the connected socket and plug are accidentally dropped during the operation, the locking portion does not collide with the floor surface, and the joint is not easily detached.

  The base 12 of the socket body 10 is formed with two rectangular flat portions 13 and 13 'that are continuous on the peripheral surface (FIG. 6). An engaging claw portion 24 is formed on the support portion 22 of the plug locking member 20. At the time of connecting the socket 2 and the plug 3, the engaging claw portion 24 is engaged with the one planar portion 13, whereby the rotation direction of the plug locking member 20 is controlled. That is, the engagement claw portion is formed on the outer peripheral surface of the base portion 12 having a diameter larger than the diameter of the support portion 22 in the direction where the other planar portion 13 'rotates easily but does not exist. Since 24 is positioned, it does not rotate easily.

  As shown in FIGS. 1 and 2, the joint of the present embodiment is configured such that the locking spring portion 21 of the plug locking member 20 passes through the opening 11 and engages with the recess 32 of the plug 3 to connect the plug 3 and the socket 2. Are connected.

  When the plug 3 and the socket 2 are removed, as shown in FIGS. 8 and 9, the plug locking member 20 is rotated so that the engaging claw portion 24 is positioned on the other planar portion 13 '. As a result, the distal end portion 21 a of the locking spring portion 21 rides on the second end portion 11 b of the opening 11, and the locking spring portion 21 is displaced radially outward as a whole and disengages from the opening 11. The combination is released and can be removed.

  As mentioned above, although embodiment concerning this invention was described, this invention is not limited to these embodiment, In the range which does not deviate from the meaning of this invention, it can change variously.

  For example, the plug locking member can be formed by adhering each part by welding or the like instead of being formed from a single sheet member. Moreover, you may form a support part from one member instead of a pair.

FIG. 1 is a side view showing a preferred embodiment of the joint of the present invention. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a side view showing the socket main body, the plug locking member, and the plug in the joint shown in FIG. 1 rotated by 180 ° about the axis. 4 is an axial cross-sectional view of the socket body shown in FIG. FIG. 5 is an axial sectional view of the plug shown in FIG. 6 is a cross-sectional view taken along line BB in FIG. 7 is a cross-sectional view taken along the line CC of FIG. FIG. 8 is a side view showing an aspect when the connection state of the joint shown in FIG. 1 is released. 9 is a cross-sectional view taken along the line DD of FIG.

Explanation of symbols

Joint 1; Socket 2; Plug 3; Socket body 10; Plug locking member 20; Opening 11; Base portion 12: Planar portion 13, 13 '; Locking spring portion 21; End portion 21a; Part 23; support part connecting part 23 '; slit 25; engagement claw part 24; insertion part 31; recess 32; seal member 33; taper part 34;

Claims (10)

In a joint comprising a socket and a plug inserted and connected to the socket,
Socket is
A cylindrical socket body for receiving a plug, the socket body having a circumferentially elongated elongate arc-shaped opening having a first end and a second end separated in the circumferential direction;
A plug locking member rotatably attached on the outer peripheral surface of the socket body, and enters the socket body from the first end side through the opening and extends to the second end side to extend to the second end portion. A locking spring portion having a distal end portion slidably engaged with the socket body, and rotating the locking member from the first end portion side to the second end portion side of the socket body, A plug locking member in which the locking spring portion is displaced radially outward as a result of the portion sliding on the second end portion and being displaced radially outward of the socket body. ,
The plug
The socket body has an insertion portion that is inserted while pushing out the locking spring portion radially outward, and has a recess on the outer peripheral surface of the insertion portion, and the insertion portion is inserted to a predetermined position of the socket body. And the locking spring part is adapted to enter the recess by its elastic force.   The plug locking member is disposed between the pair of support portions and a pair of support portions that are set to be slidable in the circumferential direction on the outer peripheral surface of the socket body on both sides of the opening. The joint according to claim 1, further comprising a coupling portion coupled to the pair of support portions, wherein the locking spring portion extends from a coupling portion with the coupling portion to the distal end portion.   The joint according to claim 2, wherein the pair of support portions, the locking spring portion, and the connecting portion are integrally formed from a single sheet-like member.   The connecting portion is provided so as to extend between the pair of support portions, and the locking spring portion extends from one end in the circumferential direction of the connecting portion, is folded back outward in the radial direction, and reversed from the other end side of the connecting portion. The joint according to claim 3, wherein the joint extends in a circumferential direction between the pair of support portions.   The pair of openings are provided so that the openings face each other in the diameter direction of the socket body, and a pair of the locking spring portions are provided corresponding to the openings. Fittings. In a socket in a joint comprising a socket and a plug inserted and connected to the socket,
A cylindrical socket body for receiving a plug, the socket body having a circumferentially elongated elongate arc-shaped opening having a first end and a second end separated in the circumferential direction;
A plug locking member rotatably attached to the outer peripheral surface of the socket body, and enters the socket body from the first end side through the opening and extends to the second end side to extend to the second end portion. A locking spring portion having a tip portion slidably engaged therewith, and by rotating the locking member from the first end portion side to the second end portion side of the socket body, A plug locking member in which the locking spring portion is displaced radially outward as a result of the portion sliding on the second end portion and being displaced radially outward of the socket body. Socket characterized by.   The plug locking member is disposed between the pair of support portions and a pair of support portions that are set to be slidable in the circumferential direction on the outer peripheral surface of the socket body on both sides of the opening. The socket according to claim 6, further comprising a coupling portion coupled to the pair of support portions, wherein the locking spring portion extends from a coupling portion with the coupling portion to the distal end portion.   The socket according to claim 7, wherein the pair of support portions, the locking spring portion, and the connecting portion are integrally formed from a single sheet-like member.   The connecting portion is provided so as to extend between the pair of support portions, and the locking spring portion extends from one end in the circumferential direction of the connecting portion, is folded back outward in the radial direction, and reversed from the other end side of the connecting portion. The socket according to claim 8, wherein the socket extends in a circumferential direction between the pair of support portions.   The pair of openings are provided so that the openings are opposed to each other in the diameter direction of the socket body, and a pair of the locking spring portions are provided corresponding to the openings. Socket.

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