JP3534282B2 - Hose connector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose connector for connecting a hose to a pipe.

[0002]

2. Description of the Related Art In a cooling circuit for cooling an automobile engine, an in-side pipe and an out-side pipe, which are respectively connected and fixed to an in-side and an out-side of a heater core (heat exchanger), are mounted on a dash panel from the vehicle interior side. The hose has an open end that is connected to the open end of each pipe. The connection of the hose to the pipe is performed by covering the outer peripheral surface of the open end of the pipe with the open end of the hose and then mounting a clip or a clamp on the outer peripheral surface of the hose.

[0003]

However, in the above-mentioned conventional connection method in which a clip or the like is fastened to the outer peripheral surface of the opening end of the hose which is installed on the opening end of the pipe, the number of parts and the number of assembling steps are large. Therefore, the assembly work is troublesome. Also, when the diameter of the clip or the like is reduced, a part of the hose in the circumferential direction is wrinkled from both sides,
At the fastening portion such as the clip of the hose, the surface pressure in the circumferential direction becomes uneven, and the sealing performance may be deteriorated.

The present invention has been made in view of the above circumstances, and eliminates the need for fastening members such as clips and clamps.
It is a technical problem to be solved to provide a hose connector capable of improving the workability of assembling a hose to a pipe and improving the sealing property at a connecting portion between the pipe and the hose.

[0005]

A hose connector according to claim 1 for solving the above problems connects an open end of a pipe and an open end of a hose, and has an outer circumference in the vicinity of the open end of the pipe. A connector which is locked and held by a locking plate fixed to a surface, the tubular portion having a tapered inner peripheral surface with a reduced diameter on the front end side into which the opening end of the hose is inserted, and the tubular portion. A housing having a flange portion integrally projecting from the outer peripheral surface of the hose, a locking portion projecting integrally from the collar portion and locking the locking plate, and inserted into the open end of the hose. The taper outer peripheral surface that compresses and holds the opening end of the hose between the tapered inner peripheral surface and the taper inner peripheral surface, the engaging portion that engages with the tubular portion, and the opening end of the pipe A cylindrical insert having a through hole into which the portion is inserted and held in the cylindrical portion, and the through hole are formed. That is held on the inner peripheral surface, characterized in that it comprises a ring-shaped seal member for sealing the outer peripheral surface of the opening end portion of the inserted the pipe to the hole.

According to a first aspect of the present invention, the hose connector is retained by a retaining plate fixed to the outer peripheral surface near the open end of the pipe, and the open end of the pipe and the hose are connected via the hose connector. And the open end of the. This work can be performed as follows. First, the open end of the hose is inserted into the tubular portion of the housing. At this time, the opening end portion of the hose is inserted from the taper inner peripheral surface side of the tubular portion, and the tubular portion of the housing is externally mounted on the outer peripheral surface near the opening end portion of the hose. Then, the cylindrical insert is inserted into the opening end of the hose from the taper outer peripheral surface side. Next, the housing is moved toward the open end of the hose, and the engagement portion of the tubular insert is engaged with the tubular portion of the housing. As a result, the tubular insert is engaged and held in the tubular portion of the housing, and the opening end of the hose is clamped between the tapered inner peripheral surface of the tubular portion of the housing and the tapered outer peripheral surface of the tubular insert. Retained. The hose and hose connector assembly thus assembled is assembled to the pipe and the locking plate fixed to the outer peripheral surface of the pipe. That is, the opening end of the pipe is inserted into the through hole of the cylindrical insert, and the locking portion of the housing is locked to the locking plate. As a result, the connector is locked and retained by the locking plate fixed to the outer peripheral surface of the pipe in the axial direction, and the open end of the pipe and the open end of the hose are connected via the connector. To be done. In this connected state, the ring-shaped sealing member held in the through hole of the cylindrical insert seals the outer peripheral surface of the opening end of the pipe inserted in the through hole, ensuring the sealing performance at the connecting portion. is doing.

As described above, in the hose connector according to the first aspect of the present invention, the hose connector is assembled to the hose in advance, and the assembly of the hose and the hose connector is assembled to the pipe as it is. Can be assembled. Also, after the assembly is completed, the inner peripheral surface of the through hole of the cylindrical insert and the outer peripheral surface of the pipe are securely sealed by the ring-shaped seal member, and the reliable sealing property at the connecting portion between the pipe and the hose is ensured. Can be secured.

In a preferred embodiment of the hose connector according to claim 1, an elastic member is attached to an outer peripheral edge portion of the collar portion, and the elastic member partitions the space on the pipe side from the space on the hose side. It is attached to a through hole formed in a plate, in which the housing is housed. According to this aspect, in the state where the pipe and the hose are connected by the hose connector, the housing of the hose connector is housed in the through hole penetrating the partition plate that partitions the space on the pipe side and the space on the hose side, and The elastic member ensures a sealing property such as a dust sealing property between the outer peripheral edge portion of the flange portion of the hose connector and the through hole of the partition plate.

A hose connector according to a third aspect of the present invention which solves the above problem is to connect the open end portions of at least two pipes with the open end portions of at least two hoses, and to connect the open end portions of the pipes. A connector which is retained by a retaining plate fixed to the outer peripheral surface near the opening end, and has a tapered inner peripheral surface with a reduced diameter at the tip end side into which the opening end of each hose is inserted. At least two tubular portions, a flange portion integrally projecting on the outer peripheral surface of each tubular portion and connecting the tubular portions to each other, and an integrally projecting protrusion on the collar portion. The opening end of the hose is respectively interposed between the housing having a stop plate and a locking portion that locks, and the tip end side that is inserted into the opening end of each hose is reduced in diameter and each tapered inner peripheral surface. The taper outer peripheral surface that holds the clamping pressure and the cylindrical parts At least two tubular inserts each having an engaging portion and a through hole into which the open end of each of the pipes is inserted, and inserted and held in each of the tubular portions, and the through holes. At least two ring-shaped sealing members, each of which is held on the inner peripheral surface to be formed and seals the outer peripheral surface of the open end of each of the pipes inserted into each of the through holes, respectively. To do.

The hose connector according to claim 3 is basically the same as the hose connector according to claim 1 except that at least two tubular parts, tubular inserts and ring-shaped sealing members are provided, and a plurality of hose connectors are provided. This is for connecting the pipe and the plurality of hoses, respectively. Therefore, the hose connector is previously attached to the open end of each hose by the same method as that of the hose connector according to claim 1.
The hose connector and the assembly of the plurality of hoses can be directly assembled to the plurality of pipes. Therefore, even when a plurality of pipes and a plurality of hoses are respectively connected, they can be assembled easily and quickly.

According to a fourth aspect of the present invention, which solves the above-mentioned problems, the hose connector connects the open end of the pipe and the open end of the hose, and partitions the space on the pipe side from the space on the hose side. A hose connector locked and held by a partition plate arranged immovably with respect to the pipe, and having a tapered inner peripheral surface with a reduced diameter on the tip side into which the opening end of the hose is inserted. A housing having a cylindrical portion, a flange portion integrally projecting on an outer peripheral surface of the tubular portion, and a locking portion projecting integrally from the flange portion and locking with the partition plate; An outer peripheral surface of the hose, which is inserted into the open end of the hose, has a reduced diameter, and holds the open end of the hose under pressure between the inner peripheral surface of the hose and an engaging portion that engages with the tubular portion. And a through hole into which the open end of the pipe is inserted, and is inserted into the tubular portion. A tubular insert is retained,
A ring-shaped seal member is provided which is held on the inner peripheral surface forming the through hole and seals the outer peripheral surface of the opening end of the pipe inserted into the through hole.

According to a fourth aspect of the present invention, the hose connector divides the space on the pipe side from the space on the hose side and is locked and held by a partition plate arranged so as not to move relative to the pipe. The open end of the pipe and the open end of the hose are connected via the hose connector. This work is basically the same as the hose connector according to claim 1,
Easy and quick to do. That is, the opening end of the pipe is inserted into the through hole of the hose connector assembled in advance to the opening end of the hose, and the locking portion of the hose connector is arranged so as not to move relative to the pipe. To be locked. As a result, the connector is locked and held by the partition plate which is arranged so as not to be movable relative to the pipe so that the connector is prevented from coming off in the axial direction, and the open end of the pipe and the open end of the hose connect the connector. Connected through.

In a preferred embodiment of the hose connector according to claim 4, the partition plate and the flange portion are provided on the outer peripheral edge portion of the flange portion in a state where the locking portion is locked to the partition plate. An elastic member that is sandwiched between is mounted.
According to this aspect, since the elastic member is pinched between the partition plate and the flange portion in a state where the locking portion of the hose connector is locked with the partition plate, rattling or the like at the locking portion is caused. It is possible to prevent the above, and it is possible to secure a sealing property such as a dust sealing property in the locking portion.

According to a sixth aspect of the present invention, there is provided a hose connector for connecting the open ends of at least two pipes and the open ends of at least two hoses, and a space on the pipe side. A hose connector that partitions the space on the hose side and is retained by a partition plate that is arranged so as to be immovable relative to the pipe, wherein the tip end side into which the open end of each hose is inserted. At least two tubular portions each having a tapered inner circumferential surface with a reduced diameter; and a flange portion integrally projecting on the outer circumferential surface of each tubular portion and connecting the tubular portions to each other, A housing having a locking portion that integrally projects from the collar portion and that locks with the partition plate;
A taper outer peripheral surface for compressing and holding the opening end portion of the hose between the distal end side inserted into the opening end portion of each hose and the tapered inner peripheral surface, respectively, and each tubular portion. At least two tubular inserts each having an engaging portion to be engaged with each other and a through hole into which the open end portion of each of the pipes is inserted, respectively, and inserted and held in each of the tubular portions; At least two ring-shaped sealing members, which are respectively retained on the inner peripheral surfaces forming the through holes and seal the outer peripheral surfaces of the open ends of the pipes inserted into the through holes, respectively. Is characterized by.

A hose connector according to claim 6 is basically the same as the hose connector according to claim 4 except that there are at least two tubular portions, tubular inserts and ring-shaped sealing members, and a plurality of hose connectors are provided. This is for connecting the pipe and the plurality of hoses, respectively. Therefore, the hose connector is previously attached to the open end of each hose by the same method as that of the hose connector according to claim 1.
The hose connector and the assembly of the plurality of hoses can be directly assembled to the plurality of pipes. Therefore, even when a plurality of pipes and a plurality of hoses are respectively connected, they can be assembled easily and quickly.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) In this embodiment, a heater core (heat exchanger) is provided in a cooling circuit for cooling an automobile engine.
The open ends 2a, 2a of the flexible hoses 2, 2 are respectively connected to the open ends 1a, 1a of the in-side and out-side pipes 1, 1 connected and fixed to the in-side and the out-side of the hose connector 3 respectively. The present invention is applied to the case of connecting via the. In the following description, the open end 1a of the pipe 1 and the open end 2a of the hose 2 are referred to as the connector 3
1, the right side of FIG. 1 is the pipe 1 side, and the left side of FIG. 1 is the hose 2 side.

As shown in FIG. 1, in an automobile engine cooling circuit, metal in-side and out-side pipes 1 and 1 connected and fixed to an in-side and an out-side of a heater core (not shown), respectively. The tip is a resin dash panel (partition plate) 4 from the vehicle interior side (pipe 1 side)
It protrudes to the engine room side (the hose 2 side) through a long hole 4a penetrating through. The pipes 1, 1 and the dash panel 4 are in a fixed state. That is, the dash panel 4 is arranged so that it cannot move relative to the pipes 1, 1.

The hose connector 3 according to this embodiment includes a resin housing 5, a resin cylindrical insert 6, and
It is mainly composed of a rubber ring-shaped seal member 7 and a rubber dust seal member (elastic member) 8. The hose connector 3 is housed in the elongated hole 4 a of the dash panel 4 in a state where the pipe 1 and the hose 2 are connected via the connector 3.

The housing 5 has two cylindrical parts 9, 9
And the tubular portions 9 and 9 integrally formed on the outer peripheral surface of the tubular portions 9 and 9 so as to extend in the direction perpendicular to the axis of the tubular portion 9.
And a locking portion 11 that is integrally projectingly provided on the flange portion 10 so as to extend in the axial direction of the tubular portion 9 and that locks with a locking plate 15 described later. have. Each tubular portion 9 has a tapered inner peripheral surface 9a whose tip side is reduced in diameter on one end side (hose 2 side) into which the open end 2a of the hose 2 is inserted.
And a flat inner peripheral surface 9b is formed on the other end side (pipe 1 side) into which the open end 1a of the pipe 1 is inserted, and at the end of the flat inner peripheral surface 9b on the pipe 1 side. The concave-convex engaged portion 9c is formed. The concave / convex engaged portion 9c
Are provided at four locations at equal intervals in the circumferential direction as shown in FIG.

A collar portion 10 for connecting the tubular portions 9, 9 to each other.
As shown in FIG. 3, the outer peripheral edge portion 10a has a plate-like outer shape as a whole. A through hole 10 through which a locking portion 11 is inserted is provided between the tubular portions 9 of the collar portion 10.
b is pierced. The locking portion 11 has a substantially strip shape,
A locking protrusion 11a is formed at the tip of the pipe 1 side. The tip of the locking projection 11a is an inclined surface 11b. The locking portion 11 has a pair of leg portions 11c, 1 integrally formed on both side surfaces of the locking portion 11 in the substantially axial center thereof.
1c (see FIG. 5), it is integrally connected to the collar portion 10 near the through hole 10b. Thereby, the locking portion 11 is
The tip end on the side of the locking projection 11a is swingable in the vertical direction (the direction in which the tubular portions 9, 9 are arranged).

The tubular insert 6 is composed of a long tubular member 12 held on the hose 2 side in the tubular portion 9 and a short tubular member 13 held on the pipe 1 side in the tubular portion 9. Has been done. The long tubular member 12 has a tapered outer peripheral surface 12a with a reduced diameter on the tip side on one end side (the hose 2 side) inserted into the open end 2a of the hose 2, and the open end 1a of the pipe 1 is inserted. A bulging portion 12b that projects radially outward is formed on the other end side (pipe 1 side). The tapered outer peripheral surface 12a and the tapered inner peripheral surface 9a of the tubular portion 9 extend substantially parallel to each other, and the wall thickness of the hose 2 is set so as to clamp the open end 2a of the hose 2 therebetween. It is set to a constant gap smaller than. Also, the bulge 12b
The outer diameter of is set to be substantially equal to the flat inner peripheral surface 9b of the cylindrical portion 9 so that it can slide. A notch 12c for accommodating and holding the ring-shaped seal member 9 is formed at the end of the inner peripheral surface of the long tubular member 12 on the pipe 1 side. In the state where the pipe 1 and the hose 2 are connected via the connector 3, the end of the long tubular member 12 on the hose 2 side reaches the end of the tubular portion 9 on the hose 2 side, and The hose 2 can be securely and firmly clamped and held between the tubular member 12 and the tubular portion 9.

On the other hand, the outer diameter of the short tubular member 13 also has the above-mentioned tubular portion 9
Of the flat inner peripheral surface 9b, and the outer peripheral surface of the concave-convex engaging portion 13a which is not engageable with the concave-convex engaged portion 9c.
Are formed. A taper surface 13b is formed at the end of the inner peripheral surface of the short tubular member 13 on the pipe 1 side in order to improve the insertability when inserting the pipe 1 into the tubular insert 6.

The inner diameters of the long tubular member 12 and the short tubular member 13 constituting the tubular insert 6 are set to be substantially equal to the outer diameter of the pipe 1 so that the pipe 1 can slide.
Also, both inner peripheral surfaces of the short tubular member 13 form a through hole 14 into which the pipe 1 is inserted. The ring-shaped seal member 7 is housed and held in the notch 12 of the long tubular member 12 in advance, and seals the outer peripheral surface of the open end 1a of the pipe 1 inserted into the through hole 14. The ring-shaped sealing member 7 has a circular cross section and has an inner diameter slightly smaller than the outer diameter of the open end 1 a of the pipe 1.

As shown in FIG. 3, the dust seal member 8 has an oval outer shape as a whole and covers almost the entire surface of the collar portion 10 of the housing 5 on the hose 2 side. As shown in FIG. 1, at the portion of the through hole 10b of the collar portion 10, the dust seal member 8 closes the through hole 10b and has a hole 8a into which the locking portion 11 is inserted. Further, an outer edge protruding portion 8b is formed on the surface of the dust seal member 8 on the pipe 1 side of the outer peripheral edge portion, whereby the first engagement for mounting the dust seal member 8 on the outer peripheral edge portion 10a of the collar portion 10. The groove portion 8c is provided, and the dust seal member 8 is provided in the long hole 4a of the dash panel 4.
Second engagement groove portion 8d for attaching the substantially airtight
Is provided.

On the outer peripheral surface of the pipes 1, 1 in the vicinity of the open ends 1a, 1a, a band-plate-like locking plate 15 for connecting the pipes 1, 1 to each other is integrally fixed. This locking plate 1
At a position substantially corresponding to the locking portion 11 in the center of 5, the locking hole 15a capable of locking with the locking protrusion 11a of the locking portion 11 is formed.
Is installed throughout. The axes of the pipes 1, 1 connected and fixed by the locking plate 15 are aligned with the axes of the tubular portions 9, 9 of the housing 3, respectively.

The hose connector 3 according to this embodiment having the above-described structure is retained by the retaining plate 15 fixed to the outer peripheral surface of the open ends 1a of the pipes 1 and 1a in the vicinity thereof. The open ends 1a, 1a of the pipe 1 and the open ends 2a, 2a of the hose 2 are connected via the hose connector 3, and at the same time, the long hole 4a of the dash panel 4 is closed. This work can be performed as follows.

First, the open ends 2a, 2a of the hoses 2, 2
Are inserted into the cylindrical portions 9 of the housing 3, respectively.
At this time, the open end portions 2a, 2a of the hoses 2, 2 are inserted from the tapered inner peripheral surface 9a, 9a side of the tubular portions 9, 9, and the housing is provided on the outer peripheral surface near the open end portions 2a, 2a of the hoses 2, 2. The tubular portions 9 of 3 are exteriorly packaged. And that hose 2,
The long tubular members 12 and 12 that form the tubular insert 6 are inserted into the open end portions 2a and 2a of the hose 2 from the tapered outer peripheral surfaces 12a and 12a sides, respectively, and the open end portions 2a and 2 of the hoses 2 and 2 are
The end faces of a are bulged portions 12b, 12b of the long tubular members 12, 12.
Abut the end face of. Next, connect the housing 3 to the hose 2,
2 is moved to the open end portions 2a, 2a side, the long tubular members 12, 12 are installed at predetermined positions in the tubular portions 9, 9 of the housing 3, and then the short tubular member 13, which constitutes the tubular insert 6, 1
3 is press-fitted from the side of the pipe 1 of the tubular portions 9, 9 to form the short tubular member 1
The concavo-convex engaging portions 13a, 13 of 3, 13 are engaged with the concavo-convex engaged portions 9c, 9c of the tubular portions 9, 9. As a result, the tubular insert 6 is engaged and held in the tubular portions 9 and 9 of the housing 3, and the tapered inner peripheral surface 9a of the tubular portions 9 and 9 is
9a and long tubular members 12 and 12 that form the tubular insert 6
The open end portions 2a, 2a of the hose 2 are clamped and held between the tapered outer peripheral surfaces 12a, 12a. In this state, the open end portions 2a, 2a of the hose 2 are elastically deformed, and this elastic repulsive force is engaged and held by the tubular portions 9, 9 via the long tubular members 12, 12. It acts on the members 13, 13. Therefore, the open ends 2a, 2a of the hoses 2, 2
Is firmly pinched and held between the tapered inner peripheral surfaces 9a, 9a of the tubular portions 9, 9 and the tapered outer peripheral surfaces 12a, 12a of the long tubular members 12, 12.

The hose 2, which is assembled in this way
The assembly of 2 and the hose connector 3 is assembled to the pipes 1 and 1 and the locking plate 15 that connects and fixes the pipes 1 and 1, and is assembled in the long hole 4a of the dash panel 4. That is, the hose connector 3 to which the open ends 2a and 2a of the hoses 2 and 2 are connected is moved in parallel so that the axis of each of the tubular portions 9 and 9 and the axis of each of the hoses 1 and 1 match. By doing so, the through holes 14, 14 of the cylindrical inserts 6, 6
The open ends 1a, 1a of the pipes 1, 1 are inserted therein, and the locking projections 11a of the locking parts 11 of the housing 3 are locked in the locking holes 15a of the locking plate 15. At this time, since the inclined surface 11b is formed on the locking protrusion 11a of the locking portion 11, when the inclined surface 11b comes into contact with the inner surface of the locking hole 15a, the locking protrusion of the locking portion 11 is formed. 1 swings upward in FIG. 1 and slides on the inner surface of the locking hole 15a, and the locking projection 11 and the locking hole 15a are locked. In this state,
Since the outer peripheral edge portion 10a of the collar portion 10 of the hose connector 3 is located inside the elongated hole 4a of the dash panel 4, the second locking groove portion 8d of the dust seal member 8 previously attached to the outer peripheral edge portion 10a of the collar portion 10 is provided. The work is completed by fitting the inner surface of the long hole 4a of the dash panel 4 in a substantially airtight manner.

As a result, the hose connector 3 is locked and held by the locking plate 15 fixed to the outer peripheral surfaces of the pipes 1, 1 so that the hose connector 3 is prevented from coming off in the axial direction, and the open ends 1a of the pipes 1, 1 are locked. , 1a and open ends 2a, 2a of hoses 2, 2
And are connected via the hose connector 3. In this connected state, the through holes 14, 14 of the tubular inserts 6, 6
The ring-shaped sealing members 7, 7 held by the through holes 14,
The outer peripheral surfaces of the open end portions 1a, 1a of the pipes 1, 1 inserted in 14 are sealed to ensure the sealing property at the connecting portion.

In this way, the hose connector 3 of this embodiment is used.
First, the hose connector 3 can be assembled to the hoses 2 and 2, and then the assembly of the hose 2 and 2 and the hose connector 3 can be moved in parallel as they are to be assembled to the pipes 1 and 1. Can be attached work. After the assembly is completed, the inner peripheral surfaces of the through holes 14, 14 of the cylindrical inserts 6, 6 and the outer peripheral surfaces of the pipes 1, 1 are reliably sealed by the ring-shaped seal members 7, 7. It is possible to secure a reliable sealing property at the connecting portion between the pipes 1, 1 and the hoses 2, 2. Further, the hose connector 3 is preliminarily attached with the dust seal member 8, and after the connection between the pipes 1, 1 and the hoses 2, 2 is completed,
The dust seal member 8 is attached to the long hole 4a of the dash panel 4.
By attaching the airtightly in a substantially airtight manner, it is possible to secure a sealing property such as a dust sealing property in the long hole 4a.

(Embodiment 2) A hose connector 3 according to Embodiment 2 is a partition plate which partitions the space on the side of the pipe 1 from the space on the side of the hose 2 and is arranged so as to be immovable relative to the pipe 1. It is locked and held by the dash panel 4 of the pipe 1, through the hose connector 3
Open end portions 1a, 1a of 1 and open end portions 2a, 2 of the hose 2
Connect to a.

In this hose connector 3, a pair of through holes 10b, 10b are provided on both outsides of the tubular portions 9, 9 instead of providing the through hole 10b of the collar portion 10 between the tubular portions 9, 9. Has been. And, in the vicinity of each through hole 10b, 10b,
The pair of locking portions 11, 11 are respectively the pair of leg portions 11c,
They are integrally connected and coupled via 11c (see FIG. 10). The pair of locking portions 11 and 11 are locked in the long hole 4 a of the dash panel 4.

Further, the outer peripheral edge portion 10a of the collar portion 10 is clamped between the dash panel 4 and the collar portion 10 in a state where the engaging portions 11 and 11 are engaged with the elongated hole 4a of the dash panel 4. A dust seal member (elastic member) 8 that can be used is attached. As shown in FIG. 8, the dust seal member 8 has an oval outer shape as a whole and covers almost the entire surface of the collar portion 10 of the housing 5 on the hose 2 side. Note that FIG.
As shown in, the dust seal member 8 closes the through holes 10b and 10b at the through holes 10b and 10b of the flange portion 10, and the holes 8a into which the locking portions 11 and 11 are inserted,
8a is formed. Further, an outer edge protruding portion 8b is formed on the surface of the dust seal member 8 on the pipe 1 side of the outer peripheral edge portion, whereby the first engagement for mounting the dust seal member 8 on the outer peripheral edge portion 10a of the collar portion 10. A groove 8c is provided. It should be noted that the outer edge projection 8b is the locking portion 1
In a state in which 1 and 11 are locked in the long hole 4 a of the dash panel 4, the pressure is applied between the dash panel 4 and the collar portion 10.

Regarding other configurations, the first embodiment described above is adopted.
The description is omitted because it is the same as. The assembling work of the hose connector 3 according to the present embodiment having the above configuration is basically the same as that of the first embodiment, and can be performed easily and quickly. That is, the through hole 1 of the hose connector 3 assembled in advance to the open ends 2a, 2a of the hoses 2, 2.
The open ends 1a and 1a of the pipes 1 and 1 are inserted into the pipes 4 and 14, and the locking portions 11 and 11 of the hose connector 3 are locked to the long holes 4a of the dash panel 4. This allows
The hose connector 3 is locked and retained by the dash panel 4 arranged so as not to be movable relative to the pipes 1, 1 so that the hose connector 3 is prevented from coming off in the axial direction. The open ends 2 a, 2 a of the hoses 2, 2 are connected via a connector 3. Also, the locking portions 11, 11
Since the outer edge protruding portion 8b of the dust seal member 8 that is previously attached to the outer peripheral edge portion 10a of the collar portion 10 is clamped between the dash panel 4 and the collar portion 10 while being locked to the dash panel 4, It is possible to prevent rattling and the like in the locking portions 11 and 11, and to secure the sealing property such as dust sealing property in the locking portions 11 and 11.

In the first and second embodiments, the concavo-convex engaging portion 13a is formed on the outer peripheral surface of the short tubular member 13 constituting the tubular insert 6, and the concavo-convex engagement portion is formed on the inner peripheral surface of the tubular portion 9. By forming the joint portion 9c and press-fitting the short tubular member 13 into the inner peripheral surface of the tubular portion 9, the concave-convex engaging portion 1 and the concave-convex engaged portion 9c.
Although the example in which the and are engaged is described, the male screw portion is formed on the outer peripheral surface of the short tubular member 13, and the female screw portion is formed on the inner peripheral surface of the tubular portion 9, and the short tubular member 13 is tubularly joined by screwing. It is also possible to adopt a configuration in which it is engaged with the inner peripheral surface of the shaped portion 9.

In the first and second embodiments, the tubular insert 6 is made up of two members, the long tubular member 12 and the short tubular member 13.
However, it is also possible to use the cylindrical insert 6 in which the long tubular member 12 and the short tubular member 13 are integrated. Further, the shape of the ring-shaped seal member 7 is not limited to the one having a circular cross section, and various changes can be made. For example, a ring-shaped seal member having a rectangular cross section and provided with one or more ring-shaped protrusions on its inner peripheral surface,
Alternatively, a ring-shaped sealing member having a substantially V-shaped cross section,
It is also possible to have a configuration in which the V-shaped both ends are housed and held in the cutouts 12c of the long tubular member 12 that configures the tubular insert 6 so as to face the hose side.

[0037]

As described in detail above, in the hose connector according to the present invention, the hose connector is assembled to the hose in advance, and the assembly of the hose and the hose connector is assembled to the pipe as it is. Therefore, the assembling work is simple and easy.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an overall configuration of a hose connector according to a first embodiment and is a cross-sectional view taken along the line DD of FIG.

FIG. 2 is a side view of the hose connector according to the first embodiment.

FIG. 3 is a front view of the hose connector according to the first embodiment, and is a view taken in the direction of arrow A in FIG.

FIG. 4 is a rear view of the hose connector according to the first embodiment and is a view taken in the direction of arrow B in FIG.

FIG. 5 is a bottom view of the hose connector according to the first embodiment and is a view taken in the direction of arrow C in FIG.

FIG. 6 is a view for explaining the overall structure of the hose connector according to the second embodiment, and is a sectional view taken along line HH of FIG.

FIG. 7 is a side view of the hose connector according to the second embodiment.

FIG. 8 is a front view of the hose connector according to the second embodiment and is a view taken in the direction of arrow E in FIG. 7.

FIG. 9 is a rear view of the hose connector according to the second embodiment, and is a view taken in the direction of arrow F of FIG.

FIG. 10 is a bottom view of the hose connector according to the second embodiment and is a view taken in the direction of arrow G in FIG.

[Explanation of symbols]

1 is a pipe, 1a is an open end, 2 is a hose, 2a is an open end, 3 is a hose connector, 4 is a dash panel as a partition plate, 4a is a long hole, 5 is a housing, 6 is a cylindrical insert, 7 Is a ring-shaped seal member, 8 is a dust seal member, 9 is a cylindrical portion, 9a is a tapered inner peripheral surface, 9c is a concave and convex engaged portion, 10 is a flange portion, 10a is an outer edge portion, 11 is a locking portion, 12 Is a long tubular member constituting a tubular insert, 12a
Is a tapered outer peripheral surface, 13 is a short tubular member forming a tubular insert, 13a is a concave and convex engaging portion, 14 is a through hole, 15 is a locking plate, and 15a is a locking hole.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-341586 (JP, A) JP-A-6-185673 (JP, A) JP-A-5-126288 (JP, A) JP-A-8- 312858 (JP, A) JP Unexamined Patent Publication No. 6-146885 (JP, A) Actually open 4-138184 (JP, U) Actually open 5-34388 (JP, U) Actually open 59-150087 (JP, U) Actual development flat 7-38883 (JP, U) Actual development Sho 52-81770 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16L 29/00-39/04 F16L 3/00 -5/02

Claims (6)

(57) [Claims] 1. A connector which connects an open end of a pipe and an open end of a hose and which is locked and retained by a locking plate fixed to an outer peripheral surface near the open end of the pipe. A tubular portion having a tapered inner peripheral surface with a reduced diameter on the distal end side into which the open end of the hose is inserted; a flange portion integrally projecting on the outer peripheral surface of the tubular portion; and the flange portion And a housing having a locking portion that integrally projects from the housing and has a locking portion that locks with the locking plate, and the tip end side that is inserted into the opening end of the hose has a reduced diameter and the tapered inner peripheral surface, A tapered outer peripheral surface that holds the opening end of the pipe in a pinching manner, an engaging portion that engages with the tubular portion, and a through hole into which the opening end of the pipe is inserted,
A tubular insert that is inserted and retained in the tubular portion, and a ring-shaped seal member that is retained by an inner peripheral surface that forms the through hole and seals the outer peripheral surface of the opening end portion of the pipe that is inserted into the through hole. A hose connector characterized by having and. 2. An elastic member is mounted on an outer peripheral edge portion of the collar portion, and the elastic member is accommodated in the housing by penetrating a space on the pipe side and a space on the hose side with a partition plate. The hose connector according to claim 1, wherein the hose connector is attached to the arranged through hole. 3. The open ends of at least two pipes and the open ends of at least two hoses are respectively connected,
A connector which is retained by a retaining plate fixed to the outer peripheral surface near the opening end of the pipe, wherein the tip end side into which the opening end of each hose is inserted is tapered. At least two tubular portions each having a peripheral surface, a flange portion integrally provided on the outer peripheral surface of each tubular portion so as to connect the tubular portions with each other, and integrally with the collar portion. Between the housing, which has a protruding portion and has a locking portion that locks with the locking plate, and the diameter of the tip end side that is inserted into the open end of each hose, and each tapered inner peripheral surface, Each has a tapered outer peripheral surface that holds the opening end with a clamping force, an engaging portion that engages with each of the tubular portions, and a through hole into which the opening end of each of the pipes is inserted. At least two tubular inserts, each of which is inserted and held in the tubular portion, At least two ring-shaped seal members, each of which is held on an inner peripheral surface forming a through hole and seals an outer peripheral surface of an open end of each of the pipes inserted into each of the through holes, respectively. Hose connector characterized by. 4. An open end of a pipe is connected to an open end of a hose, the space on the pipe side is partitioned from the space on the hose side, and the pipe is arranged so as to be immovable relative to the pipe. A tubular part having a tapered inner peripheral surface with a reduced diameter on the distal end side into which the opening end of the hose is inserted, and a hose connector on the outer peripheral surface of the tubular part. A housing having an integrally projecting collar portion, an engaging portion projecting integrally from the collar portion and engaging with the partition plate, and a distal end side inserted into the open end of the hose is contracted. A tapered outer peripheral surface that holds the opening end of the hose between the tapered inner peripheral surface and the tapered inner peripheral surface, an engaging portion that engages with the tubular portion, and an opening end of the pipe are inserted. It has a through hole,
A tubular insert that is inserted and retained in the tubular portion, and a ring-shaped seal member that is retained by an inner peripheral surface that forms the through hole and seals the outer peripheral surface of the opening end portion of the pipe that is inserted into the through hole. A hose connector characterized by having and. 5. An elastic member is attached to the outer peripheral edge of the collar portion, the elastic member being pinched between the partition plate and the collar portion in a state where the retaining portion is engaged with the partition plate. The hose connector according to claim 4, wherein: 6. The open ends of at least two pipes and the open ends of at least two hoses are respectively connected,
A hose connector that partitions the space on the pipe side and the space on the hose side and is retained by a partition plate disposed so as to be immovable relative to the pipe, the opening end of each hose At least two tubular portions each having a tapered inner circumferential surface with a reduced diameter on the tip side into which the respective portions are inserted, and the tubular portions integrally projecting on the outer circumferential surface of each tubular portion. A housing having a flange part connected to the hose, and a locking part projecting integrally with the flange part and locking with the partition plate, and the tip end side inserted into the open end of each hose is reduced in diameter. The tapered outer peripheral surface that holds the opening end of the hose between the tapered inner peripheral surface and the tapered outer peripheral surface, the engagement portion that engages with each of the tubular portions, and the opening end of each pipe are Each has a through hole to be inserted, At least two cylindrical inserts that are respectively inserted and held, and an outer peripheral surface of the open end of each pipe that is respectively retained by the inner peripheral surface that forms each of the through holes and that is inserted into each of the through holes. At least two ring-shaped sealing members for respectively sealing the hose connector.