JP3711246B2 - One-touch joint - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a joint for connecting pipes, and more particularly to a one-touch joint that is suitable for connection to a water supply device such as a faucet and a supply pipe and that can be easily connected by a one-touch operation.
[0002]
[Prior art and problems to be solved by the invention]
  Conventionally, a joint as shown in FIG. 23 is known as a joint for connecting the seed pipe.
  In the figure, reference numeral 200 denotes a female tube, which has an insertion opening 202 at one end in the axial direction, and further has a female fitting surface 204 having a circular cross section following the insertion opening 202.
  A flange portion (projecting portion) 206 is formed on the outer peripheral surface at the axial end.
[0003]
  A male pipe 208 has a male fitting surface 210 and an O-ring 212 attached thereto, and the male fitting surface 210 is inserted into the female fitting surface 204 and fitted therein. The space between the mating surfaces is sealed in a watertight manner by an O-ring 212.
  A flange portion (projecting portion) 214 similar to that in the female tube 200 is also formed on the male tube 208 side.
[0004]
  Reference numeral 216 denotes a retaining clip having elasticity for fastening the female tube 200 and the male tube 208 in the axial direction. The retaining clip 216 has an engaging groove 218 in the intermediate portion in the width direction, and a part in the circumferential direction is notched. The notch portion has an opening 220, and a guide 222 having a C-shaped opening is continuously formed following the opening 220.
[0005]
  The retaining clip 216 is elastic in a direction perpendicular to the axis through the opening 220 with respect to the flange portions 206 and 214 when the male tube 208 is inserted into the female tube 200 and the pair of flange portions 206 and 214 are combined. The female pipe 200 and the male pipe 208 are fastened in the axially secured state by engaging the flange portions 206 and 214 into the engaging groove 218.
[0006]
  224 has a pair of locking portions 226 bent inward by a safety cover, and these locking portions 226 are fitted and locked to the pair of guides 222 of the retaining clip 216, thereby protruding the guide 222. And the opening of the retaining clip 216 is prevented.
[0007]
  However, this joint has an action (action) of inserting the male pipe 208 into the female pipe 200 at the time of pipe connection, an action of elastically fitting the retaining clip 216 in the direction perpendicular to the axis in that state, and then fitting the safety cover 224. At least three stages of operations to be combined are necessary, and there is a problem that is not yet simple enough in terms of workability at the time of pipe connection.
[0008]
  On the other hand, a retaining member that can be expanded and contracted elastically in the radial direction is axially pushed from the opening of the female tube into the inside thereof, and the male tube is axially inserted into the retaining tube and inside the retaining member. There is also known a joint having a configuration in which a male tube and a female tube are connected in an axial direction through the retaining member by being pushed in.
  However, in the case of this joint, since the retaining member is inserted into the inside of the female tube and the male tube is further inserted into the inside of the retaining member, they are overlapped in the direction perpendicular to the axis. As a result, the diameter of the female pipe is inevitably increased, and the pipe connection part is partially enlarged, resulting in a problem that the appearance of the part deteriorates.
[0009]
[Means for Solving the Problems]
  The one-touch joint of the present invention has been devised to solve such problems.
  Thus, according to the first aspect of the present invention, (a) a female tube having a female fitting surface, and (b) a male fitting surface, which is inserted into the female tube in the axial direction, A male tube for fitting a surface to the female fitting surface; and (c) a female tube that is attached to the female tube in a direction perpendicular to the axis and that can be elastically expanded and contracted. A retaining clip that prevents the male pipe from coming off from the pipe; and (d) a protrusion projecting from the outer peripheral surface of the male pipe is in contact with the male pipe during insertion, and is driven by the insertion movement of the male pipe. And a cam portion that allows the protruding portion to move in the axial direction to the retaining position with respect to the retaining clip, and the retaining clip contracts at the retaining position. The male tube is prevented from being removed from the female tube, and the peripheral wall portion of the female tube is cut out over a predetermined circumferential length. That notch suddenly finds provided, the retaining clip to the cutout portion is Yes wearing, and the peripheral wall portion of said female tube along the outer peripheral surface at the location of the axial end of the cutout portionVGroovedAlong with theOf the notchTheAlong the axial edgeThe VChamfering is performed continuously after grooving.
[0010]
[Operation and effect of the invention]
  In the one-touch joint of the present invention as described above, they can be connected simply by inserting the male tube into the female tube. That is, one member provided with the female tube and the other member provided with the male tube can be quickly and easily connected with one touch.
[0011]
  In addition, in the one-touch joint of the present invention, since the retaining clip is mounted in a direction perpendicular to the axis with respect to the female tube, the connecting portion between the male tube and the female tube is particularly large in diameter and enlarged. The problem of deterioration of the appearance can be solved.
[0012]
  In the present invention, the female pipe is provided with a cutout portion formed by cutting out the peripheral wall portion over a predetermined circumference, and a retaining clip is attached thereto, and the axial end of the cutout portion is attached to the peripheral wall portion of the female tube. It is characterized in that a groove is formed along the outer peripheral surface at the position.
[0013]
  This groove processing has the following meaning.
  In other words, by providing such groove processing, when the retaining clip is fitted and installed in a direction perpendicular to the axis of the female tube, is the retaining clip correctly mounted on the female tube based on the groove processing? Specifically, it can be determined whether the retaining clip is correctly positioned at a predetermined position in the axial direction of the female tube.
[0014]
  Accordingly, it is possible to avoid the disadvantage that the retaining force by the retaining clip is weakened due to the retaining clip not being attached to the female tube at the correct position, or the male tube is not retained from the female tube. it can.
[0015]
  In the present invention, V-groove machining is performed as such groove machining.ThatVBy chamfering along the axial edge of the notch, chamfering can be performed along the axial edge of the notch.The
  Thus, by chamfering the notch part, the edge of the notch part does not become sharp, so that when the retaining clip is attached to or removed from the female tube, Specifically, when attaching or removing a retaining clip to the notch, it is possible to avoid the inconvenience of accidentally damaging a finger or the like at the edge of the notch.
[0016]
【Example】
  Next, embodiments of the present invention will be described in detail with reference to the drawings.
  FIGS. 1 to 17 show an embodiment in which the one-touch joint of the present invention is used for connecting a faucet device as a watering device and a water / hot water supply pipe, and 10 in FIG. Is a faucet device (in this example, a single lever type hot and cold water mixing faucet) installed on the upper surface of a counter or the like, wherein 12 is a faucet body, and 14 is a lever type provided on the top. Reference numeral 16 denotes a water discharge pipe extending from the faucet body 12.
[0017]
  The water discharge pipe 16 includes a pipe main body 18 integrally formed with the faucet main body 12 and a water discharge head 20 that can be pulled out together with the hose 24.
  Here, the water discharge head 20 has a water discharge port 22 at its tip, and water is discharged from the water discharge port 22.
  In this example, the water discharge head 20 can switch the water discharge from the rectified water discharge to the shower water discharge or vice versa.
[0018]
  Reference numeral 26 denotes a water / hot water supply pipe projecting sideways from the wall W to the room side. A stop cock 28 is provided at the tip of the pair of supply pipes 26.
  The stop cock 28 has an upward connection port 30. A male screw 32 is formed on the outer peripheral surface of the connection port 30.
[0019]
  In this example, the faucet device 10 and the pair of supply pipes 26 are connected to each other by a connection pipe device 34.
  The connecting piping device 34 includes a flexible connecting piping 36 and the one-touch joint 38 of this example, and the end of the connecting piping 36 is connected to the supply piping 26 by the one-touch joint 38, specifically, It is connected to the water stop cock 28 at the tip.
[0020]
  The connection pipe 36 forms a water or hot water supply pipe, and water or hot water sent through the supply pipe 26 is sent to the faucet body 12 through the connection pipe 36.
  The water and hot water sent to the faucet body 12 are mixed at a predetermined ratio inside, and the mixed water flows out through the outflow pipe 40. And it is sent to the water discharge head 20 through the said hose 24 connected to the outflow pipe 40, and water is discharged from the water discharge port 22 at the tip.
[0021]
  Reference numeral 42 denotes a hose guide for guiding the hose 24, and reference numeral 44 denotes a stopper for restricting the amount of drawing of the hose 24 to a constant amount.
  The hose 24 is prevented from being pulled out further by the stopper 44 coming into contact with the hose guide 42.
[0022]
  The one-touch joint 38 of this example includes a socket member 46 as a female tube and an end member 48 as a male tube as its main elements, as shown in FIGS.
  The end member 48 has a nipple portion 50. The nipple portion 50 is inserted into the connection pipe 36, and in this state, the tip of the connection pipe 36 together with the sleeve 52 that is caulked to the outer peripheral surface of the connection pipe 36. It is fixed to the part.
[0023]
  The end member 48 has an annular flange portion (protrusion portion) 53 protruding radially outward from the outer peripheral surface thereof, and a male fitting surface 54 having a circular cross section on the distal end side following the flange portion 53. And an O-ring 56 as a seal member is attached to the male fitting surface 54.
[0024]
  On the other hand, the socket member 46 has a cylindrical shape as a whole and has a female screw 58 at one end in the axial direction (the lower end in FIGS. 2 and 5). The female screw 58 is a male screw of the connection port 30 in the water stop cock 28. 32 is screwed together. That is, the socket member 46 is screwed to the water stop cock 28.
[0025]
  As shown in FIGS. 4 and 9, the socket member 46 has an insertion opening 60 at the upper end in the figure, and further cuts the peripheral wall 144 over a predetermined circumference at a lower position in the figure. A pair of notches 62 are formed at positions facing each other.
  Further, as shown in FIG. 2, a recess 64 for receiving the flange 53 of the end member 48 is formed so as to face the notch 62, and a female fit is further provided on the lower side in the figure following the recess 64. A mating surface 66 is formed.
[0026]
  4 and 9, the socket member 46 is also grooved along the entire outer peripheral surface except for the notch 62 at both axial positions of the notch 62 (in this example, V-groove). Processing) 146 is performed. Furthermore, chamfering 148 is performed along the axial end of the notch 62.
  Here, the chamfering 148 is performed by continuously performing the grooving 146 as it is along the axial end of the notch 62.
[0027]
  The end member 48 is inserted into the socket member 46 from the insertion opening 60 at the upper end in the figure, the male fitting surface 54 is fitted to the female fitting surface 66, and the fitting surfaces are O. It is sealed watertight by the ring 56.
  At this time, the flange portion 53 is accommodated in the concave portion 64 of the socket member 46.
[0028]
  As shown in FIG. 4, a large-diameter and hexagonal tool hook 68 is integrally formed at the lower end of the socket member 46.
  The tool hooking portion 68 has a flat tool hooking surface 70, and the socket member 46 can be rotated by hooking the tool on the tool hooking surface 70.
  That is, the female screw 58 of the socket member 46 can be screwed to the male screw 32 of the water stop cock 28 by the rotation operation.
[0029]
  As shown in FIGS. 2 to 5, the one-touch joint 38 of this example has a retaining clip 72 for preventing the end member 48 from coming off from the socket member 46 in the axial direction. The retaining clip 72 is formed to have substantially the same width as the axial width of the notch 62 (however, it is slightly small enough to fit in the notch 62).
  4 and 10, the retaining clip 72 has a shape obtained by bending and deforming a leaf spring material into a substantially U shape, and has a pair of elastic legs 74 and a connecting portion 76 thereof. The socket member 46 is fitted in the direction perpendicular to the axis, and the pair of elastic legs 74 are mounted on the socket member 46 in a state where each of the pair of elastic legs 74 is positioned in the notch 62.
[0030]
  2, the front end (lower end in the figure) abuts on the flange 53 of the end member 48 and the rear end (upper end in the figure) is the notch 62 of the socket member 46, as shown in FIG. The end member 48 is prevented from coming off the socket member 46.
[0031]
  The retaining clip 72 has a guide 78 in a shape that is opened in the shape of a letter C at the distal ends of the pair of elastic legs 74, and when the retaining clip 72 is fitted to the socket member 46 in the direction perpendicular to the axis. These guides 78 are guided.
[0032]
  Each of these guides 78 is formed with a stopper claw 80 that protrudes in a direction parallel to the plate surface of the retaining clip 72.
  On the other hand, a locking recess 84 is formed on the outer surface of the socket member 46, and a stopper claw 80 is accommodated in the locking recess 84.
[0033]
  A stopper surface 86 is formed in the locking recess 84, and the retaining clip 72 is pulled out from the socket member 46 in the direction perpendicular to the axis by the contact action between the stopper surface 86 and the stopper claw 80 of the retaining clip 72. It is prevented.
  However, the stopper claw 80 can move in the direction perpendicular to the fixed axis within the locking recess 84.
  That is, the retaining clip 72 is attached to the socket member 46 in a state in which the retaining clip 72 can move a certain distance in the direction perpendicular to the axis.
[0034]
  Each of the pair of elastic legs 74 of the retaining clip 72 is integrally formed with a cam portion 81 formed by bending the leg.
  Here, the cam portion 81 has a mortar shape as shown in FIG. Specifically, the shape is such that it approaches the center side of the socket member 46 as it advances forward, which is the insertion direction of the end member 48.
[0035]
  This cam part 81 acts as follows.
  That is, when the end member 48 is pushed into the socket member 46 in the axial direction, the cam portion 81 comes into contact with the flange portion 53 of the end member 48 in the middle of the pushing, and then the further end member 48 is pushed. Accordingly, the cam portion 81 elastically expands the pair of elastic legs 74 of the retaining clip 72 by a cam action.
[0036]
  As a result, the retaining clip 72 allows the flange portion 53 to pass, and when the flange portion 53 passes through the expanding motion of the retaining clip 72 (the retaining position), the retaining clip 72 is caused by its own restoring force. It contracts.
  At this time, the front end of the retaining clip 72 is in contact with the flange portion 53 and the rear end is in contact with the contact surface 82 of the notch portion 62, thereby preventing the end member 48, that is, the connecting pipe 36 from being detached. To do.
[0037]
  2 to 5, reference numeral 88 denotes a cover (made of resin in this example) mounted on the socket member 46 so as to cover the retaining clip 72 in the mounted state from the outside, as shown in FIG. Has a substantially cylindrical shape.
  The lower end of the cover 88 has an open shape, and an inward hooked portion 90 is formed at the upper end, so that the connecting pipe 36 can be inserted into the hooked portion 90 together with the end member 48. The opening 92 is provided.
[0038]
  Further, as shown in FIG. 3, a bulging portion 94 for accommodating the connecting portion 76 of the retaining clip 72 is provided at a predetermined position in the circumferential direction of the peripheral wall portion 98, and a position on the substantially opposite side thereof. , A pair of protrusions 96 corresponding to the pair of guides 78 in the retaining clip 72 are provided.
[0039]
  These projecting portions 96 have a substantially U-shaped cross section as shown in FIG. 12 so that they can be fitted in the socket member 46 in the axial direction with the retaining clip 72 attached to the socket member 46. It has a shape.
[0040]
  These protrusions 96 protrude outward from the pair of guides 78 of the retaining clip 72 attached to the socket member 46, and the guides 78 that are open in a C-shape are exposed and protrude independently. It also serves as a guard for preventing a hand or the like from hitting the guide 78 so as not to be in a state.
[0041]
  The cover 88 is provided with a window 100 having a predetermined circumferential length along the peripheral wall portion 98.
  The retaining clip 72 can be elastically expanded and contracted in the radial direction of the socket member 46 at the portion of the window 100.
  A slit 102 is formed at a predetermined position in the circumferential direction at a lower end portion of the peripheral wall portion 98 in the cover 88, and an elastic locking portion 104 is formed between the slits 102 and 102.
[0042]
  On the inner surface of the elastic locking portion 104, a locking claw 106 protruding inward is formed as shown in FIG.
  On the other hand, on the outer peripheral surface of the socket member 46, a locking groove 108 is formed in an annular shape at an axial position corresponding to the locking claw 106, and the locking claw 106 is elastically formed with respect to the locking groove 108. It is designed to be locked.
  The cover 88 is detachably attached to the socket member 46 by the elastic locking action of the locking claw 106 with respect to the locking groove 108.
[0043]
  Next, the procedure of connection by the one-touch joint 38 of this example will be described in detail below together with its operation.
  In this example, first, the end of the connection pipe 36 is connected to the faucet device 10, and in this state, the other end of the connection pipe 36 is connected to the supply pipe 26 by the one-touch joint 38. Connect to the stop cock 28. The procedure at that time is as follows.
[0044]
  First, the socket member 46 in the one-touch joint 38 is screwed to the water stop cock 28, and the retaining clip 72 and the cover 88 are attached to the socket member 46 as shown in FIG.
  In this case, first, the retaining clip 72 is fitted to the socket member 46 from the direction perpendicular to the axis (see FIG. 4), and then the cover 88 is fitted to the socket member 46 in the axial direction. To do. FIG. 13I shows the state at this time.
[0045]
  In this state, the end member 48 attached to the connection pipe 36 is inserted into the socket member 46 through the opening 92 of the cover 88 and the insertion opening 60 at the axial end of the socket member 46.
  During the insertion process, the male fitting surface 54 of the end member 48 enters the female fitting surface 66 of the socket member 46 (see FIG. 13 (II)), and then the flange portion 53 is the cam portion 81 of the retaining clip 72. Abut and contact.
[0046]
  When the end member 48, that is, the connection pipe 36 is pushed further downward in the drawing from this state, the pair of elastic legs 74 of the retaining clip 72 are connected by the cam action of the cam portion 81 as shown in FIG. 14 (III). The pipe 36 is pushed and elastically expands to allow passage of the flange portion 53 of the end member 48.
[0047]
  Thus, when the flange portion 53 passes through the retaining clip 72, contacts the stepped surface 65 of the socket member 46 and is accommodated in the recess 64, the retaining clip 72 contracts with its own restoring force.
  The retaining clip 72 is in a state where its front end is in contact with the flange portion 53 and its rear end is in contact with the contact surface 82 of the notch 62, where the connection pipe 36 is detached from the socket member 46. It will be in the state which prevented. FIG. 14 (IV), FIG. 7 and FIG. 8 show the state at this time.
[0048]
  In addition, when the retaining clip 72 expands as the end member 48 is pushed, the retaining clip 72 tends to move slightly in the direction perpendicular to the axis and opposite to the fitting direction in FIG. However, in this example, since the cover 88 is attached to the socket member 46, the retaining clip 72 is wrapped from the outside and is prevented from moving in the direction perpendicular to the axis, the retaining clip 72 smoothly expands and moves. Therefore, the connection pipe 36 can be smoothly inserted into the socket member 46.
[0049]
  FIGS. 15 to 17 show the procedure and action when the connecting pipe 36 is extracted from the socket member 46.
  First, as shown in FIGS. 15 (I) and (II), in order to pull out the connection pipe 36 from the socket member 46, the cover 88 is lifted upward in the drawing and removed from the socket member 46.
  After that, as shown in FIGS. 16 (III) and (IV), the retaining clip 72 is moved in the direction perpendicular to the axis and in the direction opposite to the fitting direction to release the retaining action on the end member 48.
[0050]
  Thereafter, the end member 48 is pulled upward together with the connection pipe 36 in the drawing.
  Here, as shown in FIG. 17V, the end member 48 is pulled out from the socket member 46 in the axial direction. That is, the connection pipe 36 is disconnected from the supply pipe 26.
[0051]
  In the one-touch joint 38 of this example as described above, the end member 48 as a male tube can be connected by simply inserting the end member 48 into the socket member 46 as a female tube. That is, the socket member 46 and the end member 48 can be quickly and easily connected with one touch.
[0052]
  In addition, in the one-touch joint 38 of this example, since the retaining clip 72 is mounted in the direction perpendicular to the axis with respect to the socket member 46, the connecting portion between the end member 48 and the socket member 46 has a particularly large diameter and The problem of increasing the size and deteriorating the appearance of the same part can also be solved.
[0053]
  In the one-touch joint 38 of this example, the groove clip 146 is applied to the peripheral wall portion 144 of the socket member 46 along the outer peripheral surface at both axial positions of the notch portion 62, so that the retaining clip 72 is attached to the socket member 46. If the retaining clip 72 is correctly attached to the socket member 46 based on the groove processing 146, specifically, the retaining clip 72 is correctly attached to the socket member 46. It can be determined whether or not it is located at a predetermined position in the axial direction.
[0054]
  As a result, the retaining clip 72 is not attached to the socket member 46 at the correct position, so that the retaining force by the retaining clip 72 is weakened or the end member 48 is not retained from the socket member 46. Inconvenience can be avoided.
[0055]
  Further, since the chamfering process 148 is performed along the axial end of the notch 62, the end edge of the notch 62 is not sharp, and therefore the retaining clip 72 is attached to the socket member 46. When removing or attaching, specifically, when attaching or removing the retaining clip 72 to or from the notch 62, it is possible to eliminate the inconvenience that a finger or the like is accidentally damaged at the edge of the notch 62. .
[0056]
  Further, since the retaining clip 72 is formed with a width substantially equal to the axial width of the notch 62, the axial end of the retaining clip 72 comes to substantially the same position as the axial end of the notch 62. Whether the retaining clip 72 is displaced with respect to the groove 146 can be determined quickly and accurately.
[0057]
  In addition, in this example, since the cam part 81 is integrally formed with the retaining clip 72, the number of necessary parts is small and the structure is simple.
[0058]
  Furthermore, since the one-touch joint 38 of this example is provided with a cover 88 that covers the retaining clip 72 from the outside, the appearance of the connecting portion of the end member 48 and the socket member 46 in the one-touch joint 38 is improved.
[0059]
  Further, according to the one-touch joint 38 of this example, the faucet device 10 and the supply pipe 26 can be connected with good workability even in a narrow space such as under a counter.
[0060]
  18 and 19 show another embodiment of the present invention.
  In FIG. 18, 110 is a toilet bowl (Western style toilet), 112 is a toilet body, 114 is a toilet seat, 116 is a toilet lid, 118 is a washing tank which stores the washing water of the toilet 110 inside.
[0061]
  In this example, the toilet 110 is provided with a local cleaning device (water supply device) 120 that injects water for cleaning from the nozzle 122 toward the local body part.
  Further, as shown in FIG. 19, a ball tap (water supply device) 126 for supplying water to the cleaning tank 118 from the water discharge unit 124 or stopping the water supply in conjunction with the raising and lowering of the floating ball 123 is provided inside the cleaning tank 118. It is arranged.
[0062]
  Thus, the local cleaning device 120 and the ball tap 126 are connected to the supply pipe 26 protruding from the wall W by the one-touch joint 38 of this example through the connection pipe 36, respectively.
  Specifically, the local cleaning device 120 is connected to one branch port of the branch plug 127 connected to the water stop valve 28 at the tip of the supply pipe 26 via the connection pipe 36 by the one-touch joint 38 of this example. A ball tap 126 is connected to the other branch port by a one-touch joint 38 via a connection pipe 36.
  Also in this example, connection work can be performed with good workability in a narrow work space.
[0063]
  Next, FIG. 20 shows still another embodiment of the present invention.
  In the figure, reference numeral 128 denotes a counter in the bathroom, and a washing faucet 130 is attached to a wall W constituted by a front plate of the counter 128.
  In the figure, 132 is a faucet body in the washing faucet 130, and 134 is a water discharge pipe.
[0064]
  135 is a shower head, and the other end of a shower hose (connection pipe 36) having one end connected to the shower head 135 is connected to the faucet body 132 by a one-touch joint 38.
  Specifically, it is connected to the faucet body 132 through a shower elbow 136.
[0065]
  21 and 22 show another example of the one-touch joint 38 of the present invention.
  In this example, the retaining clip 72 is attached to the notch 62 of the socket member 46, and the retaining clip 72 is formed by bending and deforming the leaf spring material, and a pair of elastic legs 74 and a connecting portion 76 are provided. However, the cam portion 81 is not formed on the retaining clip 72 in this example.
[0066]
  Instead, as shown in FIG. 21, a cam portion 81 is integrally provided on a cover 88 attached to the socket member 46.
  Here, the cam portion 81 is constituted by a substantially inclined elastic piece 140 provided on the cover 88.
  The elastic piece 140 has a bent portion 142 that is bent downward in the figure, and the bent portion 142 is engaged with the ends in the width direction of the pair of elastic legs 74 of the retaining clip 72.
[0067]
  In the case of this example, when the end member 48 as a male pipe is pushed downward in the figure, the cam portion 81 of the cover 88 is expanded, and accordingly, the retaining clip 72 is elastically expanded in the radial direction, The passage of the flange portion 53 is allowed.
[0068]
  Thus, when the flange portion 53 passes through the retaining clip 72 (a retaining position), the retaining clip 72 is contracted by its own restoring force, where the front end of the retaining clip 72 is at the flange portion 53 and the rear end is at the rear end. The end member 48, that is, the connection pipe 36, is prevented from coming off from the socket member 46 by being in contact with the contact surface 82 of the notch 62.
[0069]
  Although the embodiment of the present invention has been described in detail above, this is merely an example.
  For example, in the present invention, the male pipe and the female pipe in the one-touch joint can be formed integrally with the connection pipe 36, the water stop cock 28 or the supply pipe 26, respectively, or the female pipe can be formed on the connection pipe 36 side. The male pipe may be configured separately or integrally with the stop cock 28 or the supply pipe 26.
  Furthermore, the present invention can be configured in various forms without departing from the gist of the present invention, for example, it can be applied when connecting other water-circulating devices other than the above examples and the mating member.
[Brief description of the drawings]
FIG. 1 is a view showing an example in which a one-touch joint of the present invention is used for connection between a faucet device and a supply pipe.
FIG. 2 is an enlarged vertical sectional view of a main part showing a one-touch joint and its peripheral part in the same embodiment.
FIG. 3 is an enlarged cross-sectional view of a main part of the one-touch joint of the same embodiment.
FIG. 4 is an exploded perspective view showing a one-touch joint and its peripheral part in the same embodiment.
FIG. 5 is an exploded longitudinal sectional view showing a one-touch joint and its peripheral part in the same embodiment.
FIG. 6 is a perspective view showing the one-touch joint and its peripheral part in the same embodiment before the connection pipe is inserted.
FIG. 7 is a perspective view showing the one-touch joint of the same embodiment and its peripheral portion in a state where a connection pipe is inserted and connected.
8 is a front view and a side view showing the same state as FIG. 7. FIG.
FIG. 9 is a diagram showing a socket member in the one-touch joint of the same embodiment in a single state.
FIG. 10 is a view showing a retaining clip in the one-touch joint of the same embodiment in a single state.
FIG. 11 is a perspective view showing a cover of the one-touch joint of the same embodiment in a single state.
12 is a view showing in detail the structure of the cover of FIG.
FIG. 13 is a diagram showing a connection procedure in the one-touch joint of the same embodiment.
FIG. 14 is an explanatory diagram of a procedure following FIG. 13;
FIG. 15 is a diagram showing a procedure when disconnecting the one-touch joint of the same embodiment.
FIG. 16 is an explanatory diagram of the procedure following FIG.
FIG. 17 is an explanatory diagram of a procedure following FIG. 16;
FIG. 18 is a diagram showing another embodiment of the present invention.
FIG. 19 is a partial cross-sectional view showing an enlarged main part of FIG. 18;
FIG. 20 is a diagram showing still another embodiment of the present invention.
FIG. 21 is a view showing another embodiment of the one-touch joint of the present invention.
22 is a perspective view of the one-touch joint of FIG. 21. FIG.
FIG. 23 is a diagram showing an example of a conventional joint.
[Explanation of symbols]
        10 faucet equipment (water equipment)
        26 Supply piping
        36 Connection piping
        38 One-touch joint
        46 Socket member (female tube)
        48 End member (Male pipe)
        53 Flange (projection)
        54 Male mating surface
        62 Notch
        66 Female mating surface
        72 retaining clip
        81 Cam part
        88 cover
        110 toilet
        118 Washing tank
        120 Local cleaning equipment (water equipment)
        122 nozzles
        126 Ball tap (water equipment)
        132 faucet body
        144 Perimeter wall
        146 Grooving
        148 Chamfering

Claims (1)

(B) a female tube having a female fitting surface and (b) a male fitting surface, which is inserted in the axial direction with respect to the female tube to fit the male fitting surface to the female fitting surface. A male tube and (c) a stopper that is attached to the female tube in a direction perpendicular to the axis and elastically expands and contracts, and prevents the male tube from coming off from the female tube in the contracted state. A clip and (d) a protruding portion projecting from the outer peripheral surface of the male tube when the male tube is inserted, and the retaining clip is expanded by following the insertion movement of the male tube. And a cam portion that allows the protruding portion to move in the axial direction to a removal position, and the retaining clip contracts at the removal position to prevent the male tube from being removed from the female tube. There is
The female pipe is provided with a cutout portion formed by cutting out the peripheral wall portion over a predetermined circumferential length, and the retaining clip is attached to the cutout portion, and the peripheral wall portion of the female pipe is provided with the cutout portion. with some decorated with V grooves along the outer peripheral surface at the location of the axial end of the notch, the chamfering continuously to the V grooves along the axial end of the cutout portion are subjected One-touch joint characterized by

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