JP2008020025A - Joint and hose provided with nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detachable joint for connecting to-be-connected members by a simple operation, and provide further a hose provided with a detachable nozzle. <P>SOLUTION: The joint is composed of a joint body 10 wherein both openings are made as connections for the nozzle 2, and the hose 3, and a through-hole 1x is bored on the wall surface; and a locking ring 11 which has a locking projection 110 in the inside surface for being locked to the locking part 2b of the nozzle 2 by means of the through-hole 1x, and is elastically fit on the external periphery of the joint main body 10. Locking of the locking projection 110 and a locking part 2b of the nozzle 2 together, or detachment thereof is performed by sliding the locking ring 11 in the direction of the periphery of the joint body 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a joint used for connecting connecting members such as a hose and a nozzle to each other, and a hose with a nozzle.

  2. Description of the Related Art Conventionally, a nozzle is connected to a hose attached to a vacuum cleaner, a blower or the like, and the suction amount, discharge amount, flow rate, and the like are adjusted by the nozzle (see, for example, Patent Document 1).

  The connection structure between the nozzle and the hose described in Patent Document 1 is to prevent the hose from coming out of the hose connection portion even if the nozzle repeatedly moves by protruding a stopper protrusion at the end of the hose connection portion. The nozzles are not expected to be changed frequently.

  On the other hand, it is common practice to use nozzles of various shapes and use them according to the application.

In this way, when nozzles of various shapes are used and used properly according to the application, the nozzle is simply inserted into the hose, or a connection tool having a screw groove is used, and the hose and the nozzle are connected via this connection tool. Such a method was mainly adopted.
Japanese Utility Model Publication No. 63-71267

  However, if the nozzle is simply inserted into the hose, there arises a problem that the nozzle is easily removed. Further, in the case where the hose and the nozzle are screwed together via a connecting tool, the screwing has to be released one by one when replacing the nozzle.

  The present invention was devised in view of such circumstances, and provides a joint capable of connecting and disconnecting connecting members to each other by a simple operation, and a hose with a nozzle capable of easily attaching and detaching a nozzle. It is.

  In order to achieve the above object, the present invention provides a joint body in which opening portions at both ends are each connected to a connection member, a through hole is formed on a wall surface, and the connection member via an inner surface through the through hole. And a locking ring elastically fitted to the outer periphery of the joint body, and sliding the locking ring in the circumferential direction of the joint body. Accordingly, the engaging convex portion and the engaging portion of the connecting member are engaged or disengaged.

  According to this invention, the engagement ring is elastically fitted to the outer periphery of the joint body, and the engagement portion is engageable with the engagement portion of the connection member through the through hole formed in the joint body on the inner surface of the engagement ring. Since the mating convex part is provided and the engaging convex part and the engaging part of the connecting member are engaged or disengaged by sliding the locking ring in the circumferential direction of the joint body, it can be connected with a simple operation. The members can be connected to each other and removed. Further, since the joint according to the present invention is constituted by the joint body and the locking ring, the structure is simple, the number of parts is small, and the cost can be reduced.

  According to the present invention, in the joint having the above-described configuration, the joint body is provided with guide means for guiding the locking ring to slide only in a circumferential direction of the joint body on an outer peripheral surface thereof.

  According to the present invention, since the locking ring is guided by the guiding means so as to slide only in the circumferential direction of the joint body, the engaging convex portion and the engaging portion of the connecting member are accurately engaged or disengaged. .

  In the joint having the above configuration, the guide means may be a groove. In this case, by forming a groove on the outer peripheral surface of the joint body, the engaging convex portion and the engaging portion of the connecting member can be accurately engaged or disengaged.

  Further, in the joint having the above-described configuration, the guide means may be a pair of ribs formed continuously or intermittently. In this case, it is possible to accurately engage or disengage the engaging convex portion and the engaging portion of the connecting member by forming a pair of ribs formed continuously or intermittently on the outer peripheral surface of the joint body. it can.

  The present invention is characterized in that a part of the locking ring is cut off.

  According to the present invention, since a part of the locking ring is cut, it is easy to elastically fit the joint body. Moreover, the locking ring can be slid in the circumferential direction of the joint body by operating the end portion of the portion where the locking ring is cut.

  The hose with a nozzle of the present invention is a hose, a nozzle having an engagement portion provided on the outer peripheral surface on the connection end side, one opening is a connection portion of the hose, and the other opening is a connection of the nozzle A joint body having a through-hole formed in the wall surface near the nozzle connection portion, and an engagement convex portion that can be engaged with the engagement portion of the nozzle through the through-hole on the inner surface. And an engagement ring elastically fitted to the outer periphery of the joint body, and by sliding the engagement ring in the circumferential direction of the joint body, the engagement convex portion and the engagement portion of the nozzle Are engaged or disengaged.

  According to this invention, since the hose and the nozzle are connected via the joint composed of the joint main body and the locking ring, the engagement convex portion is formed by sliding the locking ring in the circumferential direction of the joint main body. The engaging portion of the connecting member is engaged or disengaged, and the hose and the nozzle can be connected to each other and removed with a simple operation.

  According to the present invention, it is possible to provide an effect of providing a joint capable of connecting and disconnecting connecting members to each other by a simple operation and a hose with a nozzle capable of easily attaching and detaching a nozzle.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a mode in which a hose 3 and a nozzle 2 are connected via a joint 1 according to the present embodiment.

  The joint 1 according to the present embodiment includes a joint main body 10 in which both end openings are connection parts 1a and 1b of a hose 3 and a nozzle 2 (connection member), and a through hole 1x is formed on a wall surface, and an inner surface. The engagement ring 110 has an engagement convex portion 110 that can be engaged with the engagement portion of the hose 3 and the nozzle 2 through the through hole 1x, and is elastically fitted to the outer periphery of the joint body 10. .

  The joint body 10 is formed of a cylindrical body in which one opening is a connecting portion 1a of the hose 3 and the other opening is a connecting portion 1b of the nozzle.

  A through hole 1x is formed in the wall surface of the nozzle near the connecting portion 1b, and the engaging convex portion 110 of the locking ring 3 can be engaged with the engaging portion 2b of the nozzle 2 through the through hole 1x. Has been made.

  On the outer peripheral surface of the joint body 10, a pair of continuously formed ribs 12 are formed, and the locking ring 11 is designed to slide only in the circumferential direction of the joint body 10.

  In the present embodiment, the rib 12 is formed on the outer peripheral surface of the joint body 10, but a groove may be formed instead of forming the rib 12.

  Furthermore, a restraining wall 13 is formed on the inner peripheral surface of the joint body 1 to position the nozzle 2 by abutting the tip edge of the nozzle 2 when the nozzle 2 is inserted (see FIG. 2).

  A plurality of annular protrusions 1y are formed on the outer peripheral surface of the hose connection part 1a of the joint body 10, and the hose 3 is connected by pressing the engaging part of the hose 3 against the protrusion 1y. [Refer to FIG. 2].

  In addition, the connection method of the hose 3 and the coupling 1 is not limited to the said method. For example, the hose connection portion 1 a may be configured in the same manner as the nozzle connection portion 1 b described above, and a locking ring 11 described later may be elastically fitted to the hose connection portion 1 a side of the joint body 10.

  As shown in FIG. 3, the locking ring 11 has a part of a flexible annular member (for example, made of synthetic resin) cut out and is elastically fitted to the outer periphery of the joint body 10.

  Moreover, the edge of the part by which the locking ring 11 was cut off is made into operation part 11a, 11b, respectively. Further, an engaging convex portion 110 is projected from the inner side surface of the locking ring 3.

  The engagement convex part 110 has a shape corresponding to the through hole 1x of the joint body 10 and is formed at a protruding height higher than the depth of the through hole 1x, and the engagement of the nozzle 2 through the through hole 1x. It is comprised so that engagement with a part is possible.

  The configurations of the locking ring 3 and the engaging projection 110 are not limited to those described above. For example, the locking ring 3 and the engaging protrusion 110 are formed of an elastic body such as rubber and are elastically fitted over the outer peripheral surface of the joint body 10. An engagement convex portion may be formed on the locking ring.

  The nozzle 2 is a hollow member having a distal end portion as a nozzle tip portion 2 a and a proximal end portion as an engagement portion 2 b connected to the joint body 10. The diameter is slightly smaller than the inner circumference of the end, and is detachably attached to the inner circumference of the connection portion 1b of the joint body 10.

  Further, on the outer peripheral surface of the nozzle 2, the position of the engaging portion 2 b corresponding to the engaging convex portion 110 (in the state where the nozzle 2 is inserted into the joint body 10 until it abuts against the restraining wall 13 of the joint body 10, An annular groove portion 20 is formed at the position of the engaging portion 2b corresponding to the engaging protrusion 110 protruding inward from the engagement protrusion 110 protruding from the through hole 1x of the joint body 10. And the groove portion 20 are engaged with each other to prevent the nozzle 2 connected to the joint 1 from being pulled out.

  In the present embodiment, the groove portion 20 is formed in an annular shape over the outer peripheral surface of the nozzle 2, but is not limited to such a groove portion 20, and has a size corresponding to, for example, the engaging convex portion 110. -The shape recessed part formed in the nozzle 2 may be used.

  Furthermore, the nozzle tip 2a has various shapes depending on the application. Here, the nozzle 2 having a long hole opened at the tip has been described as an example. However, for example, a nozzle having a small diameter round hole opened at the tip or a plurality of pipes attached to the tip. The nozzle 2 may be appropriately selected according to the application and can be used after being replaced.

  Next, a procedure for connecting / disconnecting the joint 1 and the nozzle 2 configured as described above will be described with reference to the drawings.

  In the initial state, the locking ring 11 is elastically fitted to the joint body 10 so that the engaging convex part 110 is fitted to the through hole 1x (see FIG. 3B).

  The hose 2 has a proximal end connected to a vacuum cleaner, a blower, and the like, and a distal end connected to the connecting portion 1 a of the joint body 10.

  When connecting the nozzle 2 to the joint 1, first, a force is applied to the operation portion 11a of the locking ring 3 in the circumferential direction with a finger (see FIG. 4A).

  Instead of applying a force to the operation unit 11a, a force may be applied to the operation unit 11b.

  As the force is applied in this manner, the operation portion 11 a is slid in the circumferential direction of the joint body 10. When a force is started to be applied to the operation portion 11a, the engagement convex portion 110 of the locking ring 11 is fitted into the through hole 1x, and therefore the engagement portion of the engagement convex portion 110 with the through hole 1x is Acting as a stopper, the locking ring 11 moves in a direction away from the outer peripheral surface of the joint body 10 (see FIG. 4B).

  If it does so, it will be drawn in in the through-hole 1x in order from the part 111a near the operation part 11a among the protrusion parts 111 which protrude toward the inward of the coupling main body 10 from the through-hole 1x of the engagement convex part 110. FIG.

  Then, a force is continuously applied to the operation portion 31 in the circumferential direction until the protruding portion 111 of the engaging convex portion 110 is completely drawn into the through hole 1x.

  However, if a force is applied until the engaging convex portion 110 is completely removed from the through hole 1x, the locking ring 11 is detached from the joint body 10, and the engaging convex portion 110 is displaced from the position corresponding to the through hole 1x. As a result, even if the applied force is released, the engaging projection 110 and the through hole 1x are not fitted. For this reason, the force is applied to the operation portion 31 in a state where the engaging convex portion 110 is not completely detached from the through hole 1x, and the protruding portion 111 of the engaging convex portion 110 is drawn into the through hole 1x. (That is, until the portion 111b on the opposite side to the portion 111a near the operation portion 11a of the protruding portion 111 of the engaging convex portion 110 is flush with the inner peripheral surface of the joint body 10). .

  In this manner, the protruding portion 111 of the engaging convex portion 110 can be easily pulled into the through hole 1x by a one-touch operation with one hand only by applying a force in the circumferential direction to the operating portion 11a.

  Next, the nozzle 2 is inserted into the joint body 10 until the base end edge of the nozzle 2 abuts against the stop wall 13 of the joint body 10.

  Subsequently, the finger applied to the operation unit 11a is released, and the applied force is released. Then, due to the elasticity of the locking ring 11, the locking ring 11 comes into close contact with the outer peripheral surface of the joint body 10. And since the engaging convex part 110 protrudes inward from the through-hole 1x, and this protrusion part 111 engages with the groove part 20 of the nozzle 2, it is blocked | prevented that the nozzle 2 pulls out from the coupling 1, and the nozzle 2 is securely attached to the joint 1.

  When the nozzle 2 is removed from the joint body 1, the engaging convex portion 110 is not completely detached from the through hole 1x and the protruding portion 111 of the engaging convex portion 110 is in the same manner as described above. A force is applied to the operation portion 31 in the circumferential direction with a finger of one hand until it is drawn into the through hole 1x (see FIGS. 4A and 4B).

  Next, when the nozzle 2 is pulled in the direction of the nozzle tip 2a with the other hand, the nozzle 2 is pulled out from the joint 1, and the nozzle 2 can be easily removed.

  Such a hose with a nozzle connects the nozzle 2 and the hose 3 to each other by a simple operation, and the nozzle 2 can be removed by a simple operation, so that it is very convenient to use. For example, the hose 3 is connected to a negative pressure generating means (vacuum cleaner) or a blower, the nozzle tip 2a is brought into contact with the wet hair of the pet, moisture is sucked, or moisture is blown off from the nozzle tip 2a by wind pressure. Therefore, it is preferably used for those that remove moisture.

  As described above, one example of the embodiment of the present invention has been described, but the present invention is not limited to this example.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a joint that can connect and remove connecting members to each other by a simple operation, and a hose with a nozzle that can easily attach and detach a nozzle.

It is a perspective view showing a joint concerning one embodiment of the present invention. It is a perspective view which fractures | ruptures and shows the external appearance of the coupling of FIG. It is a perspective view which shows the coupling of FIG. It is a perspective view which shows the usage method of the coupling which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Joint 10 Joint main body 11 Locking ring 110 Engagement convex part 12 Rib 2 Nozzle 3 Hose

Claims (6)

The joint main body in which the opening portions at both ends are each connected to the connection member, and a through hole is formed on the wall surface;
It has an engagement convex part that can be engaged with the engagement part of the connection member via the through hole on the inner side surface, and comprises a locking ring elastically fitted to the outer periphery of the joint body,
A joint characterized in that the engaging convex part and the engaging part of the connecting member are engaged or disengaged by sliding the locking ring in the circumferential direction of the joint body.   The joint according to claim 1, wherein the joint body is provided with guide means on the outer peripheral surface thereof for guiding the locking ring so as to slide only in a circumferential direction of the joint body.   The joint according to claim 2, wherein the guide means is a groove.   The joint according to claim 2, wherein the guide means is a pair of ribs formed continuously or intermittently.   The joint according to any one of claims 1 to 4, wherein a part of the locking ring is cut. A hose,
A nozzle provided with an engaging portion on the outer peripheral surface on the connection end side;
One opening is the connecting portion of the hose, the other opening is the connecting portion of the nozzle, and a joint body in which a through hole is formed in the wall surface near the connecting portion of the nozzle,
It has an engagement convex part that can be engaged with the engagement part of the nozzle through the through hole on the inner side surface, and consists of a locking ring elastically fitted to the outer periphery of the joint body,
The hose with nozzle is characterized in that the engaging projection and the engaging portion of the nozzle are engaged or disengaged by sliding the locking ring in the circumferential direction of the joint body.

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