JP2001152979A - Hose connector with filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hose connector preventing foreign matter, etc., from entering a hose via an opening part. SOLUTION: This hose connector is provided with a cylinder body 200 connected to the hose in one end. The opening part in the other end of the cylinder body 200 is provided with a lock part 220 comprising, for example, an annular fringe 224, and an elastic piece 221 having a claw 222. A filter cap 300 having a grid 310 is attached to the opening part 210. Or a filter part may be formed in a corner part of the cylinder body 200 bent into an elbow shape and in this case, the cylinder 200 and the filter part 260 can be integrally formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose connector with a filter connected to one end of a hose and connected to a structure.

[0002]

2. Description of the Related Art When arranging a hose inside a structure, it is sometimes necessary to open an end of the hose to the outside. One example is a drain hose for a canister device of an automobile.

[0003] A canister device is a device connected to a fuel tank and an engine of an automobile, for recovering gaseous fuel discharged from the fuel tank and supplying the recovered fuel to the engine. This canister device discharges air excluding gaseous fuel discharged from the fuel tank to the atmosphere, discharges unrecovered fuel as drain to the outside, and further supplies recovered fuel to the engine. A hose open to the atmosphere must be connected in order to take in the required air from the atmosphere. The hose opened to the atmosphere is a drain hose.

In the case where the end of the hose must be opened to the outside of the structure, the structure is conventionally provided via a tubular hose connector formed of a material different from the hose such as a synthetic resin and harder than the hose. Attach it to an object. According to this conventional hose connector, the hose can be attached to the structure by attaching the hose connector to the structure such that one end of the hose connector projects outside the structure, and extrapolating the hose to the other end. It is possible, and its end is open to the outside of the structure.

[0005]

However, in the conventional hose connector, for example, when the end of the drain hose is used for attaching to the vehicle body, spiders and the like that enter from the opening end projecting to the outside of the vehicle body may be inside. Sometimes a nest was formed and the drain hose was blocked.

In addition, when air is supplied from the atmosphere, foreign matter and the like may be mixed in with the air and may block the drain hose and the like.

It is an object of the present invention to provide a hose connector which can prevent foreign matter and the like from entering a hose through an opening.

[0008]

In order to achieve the above object, a first aspect of the present invention is a hose connector connected to one end of a hose and connected to a structure. A hose connector with a filter, characterized in that one end is connected to the hose, the other end has a locking portion fitted around the mounting hole of the structure, and a filter cap is attached to the other end opening. Is provided.

According to the first aspect of the present invention, one end is connected to the hose, and the filter cap is attached to the opening at the other end. Therefore, it is possible to prevent foreign matter and the like from entering the hose from the opening. Further, even when an existing hose connector is used, the above-described effect can be obtained only by attaching the filter cap, so that it is not necessary to replace the entire hose connector with a new one.

[0010] It is preferable that the filter cap has a lattice formed so that a central portion on the atmosphere side protrudes.

According to this aspect, since the lattice is formed so that the central portion on the atmosphere side protrudes, even when foreign matter having a large area, such as fallen leaves, adheres to the lattice, for example.
A gap is formed between the surface of the lattice and the foreign matter at the periphery of the lattice, and the opening can be prevented from being completely closed.

Further, the locking portion includes an elastic piece divided by a pair of parallel slits along a direction of insertion into the mounting hole of the structure, and a claw projecting outward from the elastic piece. The filter cap has a fitting projection that fits into a hole inside the cylindrical body, and the locking portion and the hole are at the same position in the circumferential direction, that is, on the same line along the axial direction. Preferably, there is.

According to this aspect, when the cylindrical body is inserted into the mounting hole of the structure, the elastic piece divided by the pair of parallel slits along the direction of insertion into the mounting hole of the structure has the inner portion. The elastic piece returns to its original shape due to elastic force after insertion. And since the nail | claw which protrudes outward from this elastic piece is hooked on the peripheral part of the mounting hole of the said structure, it can prevent that a cylindrical body comes off from a mounting hole.

Further, since the filter cap has a fitting projection fitted into the hole inside the cylinder, the fitting projection is fitted into the hole inside the cylinder to prevent the filter cap from coming off. . Furthermore, since the locking portion and the hole are at the same position in the circumferential direction, even when a force from outside acts on the locking portion, the locking portion is fixed by the fitting protrusion fitted in the hole. Since the filter cap restricts the inward bending of the locking portion to some extent, it is possible to prevent the hose connector from coming off the mounting hole of the structure.

According to a second aspect of the present invention, there is provided a hose connector connected to one end of a hose and connected to a structure.
An entire elbow-shaped cylinder is formed, one end of which is connected to the hose, and the other end of the outer periphery has a locking portion that fits into a mounting hole of a structure. A filter connector provided at a corner portion is provided, and the entirety thereof is integrally formed of synthetic resin.

According to the second aspect, since the filter portion is provided, it is possible to prevent foreign matter and the like from entering the hose from the opening.

Further, since the hose is bent in an elbow shape as a whole, the hose can be disposed in parallel with a mounting portion of a structure (for example, a side member of a vehicle body, a bumper, etc.) and mounted on the connector. Etc. become better.

Further, by disposing the filter portion at the corner of the cylindrical body bent in an elbow shape, the mold can be removed at the time of injection molding, and the cylindrical body and the filter portion can be integrally formed. Productivity can be significantly improved. And since a cylinder and a filter part are integrally molded with synthetic resin, productivity can be improved compared with the case where a cylinder and a filter part are comprised by another body.

It is preferable that the filter portion has a lattice formed so that the central portion on the atmosphere side protrudes, and the operation is as described in the filter cap.

A third aspect of the present invention is to provide a hose connector with a filter according to the second aspect, wherein the filter portion is inclined from an inner corner of the elbow-shaped cylinder.

According to the third aspect of the present invention, the filter area can be widened with respect to the flow path width by arranging the filter portion at an angle from the inner corner of the cylindrical body bent in an elbow shape. , The resistance of the fluid flowing inside the cylinder is reduced,
Fluid can flow smoothly.

It is preferable that the filter section has a lattice formed so that the central portion on the atmosphere side projects, and the operation is as described in the filter cap.

[0023]

1 to 5 show an embodiment in which a hose connector according to the present invention is applied to a drain hose of a canister device of an automobile. 1 is a perspective view showing the appearance of the hose connector with a filter cap removed, FIG. 2 is a side view of the hose connector with the filter cap attached, and FIG.
(B) is a bottom view, FIG. 3 shows a filter cap of the hose connector, (A) is a front view, (B) is a side view,
3 (C) is a bottom view, FIG. 4 (D) is a plan view, FIG. 4 is a cross-sectional view of the filter cap, and FIG.
FIG. 5B is a cross-sectional view taken along line A-A ', FIG. 5B is a cross-sectional view taken along line B-B', and FIG. 5 is a cross-sectional view showing a state where the hose connector is attached to a vehicle body.

As shown in FIGS. 1 and 2, the hose connector 100 includes a cylinder 200 and a filter cap 300.
Consists of The cylindrical body 200 has an elbow shape bent at the corner 250, and at one end thereof, a stepped portion 271 having an enlarged diameter with respect to the outer periphery of the cylindrical body 200, and gradually reduced in diameter from the stepped portion 271 toward the tip end. A tapered portion 270 is provided. And the taper part 270 is inserted in the drain hose mentioned later.

The other end of the cylindrical body 200 forms an opening 210 from which the corner 250
An annular flange 224 projecting from the outer periphery of the cylindrical body 200 is provided at a position separated by a predetermined length in the direction of. Cylinder 2
In the peripheral wall extending from the flange 224 to the opening 210, a slit extending a predetermined length along the flange 224, and the opening 2 extending from both ends of the slit along the axial direction of the cylindrical body 200.
A U-shaped slit 223 composed of two parallel slits extending a predetermined length toward 10 is formed, and the slit 223 forms a cantilevered elastic piece 221. The elastic piece 221 has a claw 2 protruding outward.
22 are provided. From the claw 222 to the elastic piece 2
A slope 225 that gradually decreases toward the base of the elastic piece 221 is formed at a portion toward the base of the elastic piece 221 so that the elastic piece 221 is easily bent inward when inserted into the mounting hole of the vehicle body. The portion from the claw 222 to the tip of the elastic piece 221 has a substantially vertical steep surface to facilitate engagement with the mounting hole of the vehicle body. The elastic piece 221, the claw 222, and the flange 224 form a locking portion 220 that fits into a mounting hole of the vehicle body.

The elastic pieces 221 are provided at two opposing positions on the peripheral wall of the cylindrical body 200, and a hole 230 is provided at a portion from the base of each elastic piece 221 to the opening 210. In this hole 230, the filter cap 30
The zero fitting projection 320 fits. In addition, the hole 230 may be a hole penetrating from the inner surface of the cylindrical body 200 to the outer surface, or may be a concave hole provided on the inner surface of the cylindrical body 200.

Further, a groove 240 extending from the opening 210 by a predetermined length along the axial direction of the cylindrical body 200 is provided at a position shifted by 90 degrees from each of the two elastic pieces 221 along the outer periphery of the cylindrical body 200. , 240 are formed so as to face each other in the circumferential direction of the cylinder 200. When the filter cap 300 is inserted, the cylindrical body 2
00 allows the diameter of the filter cap 200 to be elastically increased, and also serves to position the filter cap 200 in cooperation with the ridge 323 of the filter cap 200 as described later.

As shown in FIGS. 1, 3 and 4, the filter cap 300 comprises a cylindrical frame 330 and a grid 310 provided on one end surface of the frame 330. The grid 310 includes a plurality of plate members 312 arranged in parallel with each other and a plurality of bar members 313 orthogonal to the plate members 312 and arranged in parallel with each other. The plate-like member 312 has a shape in which a central portion is protruded in an arc shape when viewed from the side. The raised portion protrudes toward the other end opening surface of the frame 330. The centrally arranged one of the plurality of plate-like members 312 has a bow shape which is larger than those arranged on both sides thereof, and the lattice 3
10 has a shape in which the central portion 311 projects most as a whole and gradually lowers toward the frame 330 therefrom.

A pair of parallel slits 322 extending in the axial direction by a predetermined length from an opening surface facing the mounting surface of the lattice 310 are formed at opposing portions of the peripheral wall of the frame 330. A pair of parallel slits 322 are formed by these slits 322. An elastic piece 321 is formed. The elastic pieces 321 are provided at two opposing positions on the peripheral wall of the frame 330, and a fitting projection 320 is formed at the center thereof. This fitting projection 32
The attachment surface side of the lattice 310 of 0 is tapered to facilitate insertion into the cylindrical body 200.

At positions shifted from each of the elastic pieces 321 of the frame 330 along the outer periphery of the frame 330 by 90 degrees,
Two ridges 323 extending in the axial direction are formed so as to face each other in the circumferential direction.

The filter cap 300 is attached to the opening 210 of the cylinder 200. That is, the filter cap 300 is inserted into the opening 210 of the cylindrical body 200 from the mounting surface side of the lattice 310 while the protrusion 323 of the filter cap 300 is inserted into the groove 240 of the cylindrical body 200. At this time, the groove 240 is provided at a position shifted by 90 degrees from the hole 230 along the outer periphery of the cylindrical body 200, and the ridge 323 is provided at a position shifted by 90 degrees from the fitting protrusion 320 along the outer periphery of the frame 330. Therefore, by inserting the protrusion 323 into the groove 240, the fitting protrusion 320 can be adjusted to a position where the fitting protrusion 320 fits into the hole 230. Filter cap 30
When the zero fitting projection 320 contacts the end face of the opening 210 of the cylindrical body 200, the opening 210 of the cylindrical body 200 is divided into two parts by the groove 240, so that the tapered surface formed on the end face of the fitting projection 320 is formed. In the direction in which it is pushed along.
Similarly, the elastic piece 321 of the filter cap 300 bends inward. As a result, the fitting projection 320 of the filter cap 300 fits into the hole 230 of the cylindrical body 200. Thus, the filter cap 300 is attached to the opening 210.

Next, a method of attaching the hose connector 100 to the vehicle body will be described. FIG. 13 is a perspective view schematically showing a fuel tank peripheral device.

As shown in FIG. 13, the fuel tank 610
Is supplied through a fuel supply pipe 670 connected to a fuel supply port 660. The supplied fuel is supplied to the fuel supply pipe 71.
0 to the engine 620. An excess portion of the fuel supplied through the fuel supply pipe 710 is returned to the fuel tank 610 through a fuel return pipe 720.

The internal pressure of the fuel tank 610 is, for example,
If the gas rises due to evaporation of the fuel, etc.
The gas is discharged through the gas reservoir 0, the canister device 630, and the drain hose 750, thereby preventing the fuel tank 610 from being damaged by the internal pressure. The separator 640 provided in the middle of the drain hose 750 is for removing moisture of the air flowing from the atmosphere through the drain hose 750, which will be described later.

The air-side end of the drain hose 750 is
The hose connector 100 is used for attaching to, for example, a side member 650 that is a part of the vehicle body. The hose connector 100 may be attached to a bumper or the like.

As shown in FIG. 5, the hose connector 100
In order to attach the filter connector 300 to the side member 650, first, the end of the hose connector 100 on the filter cap 300 attachment side is inserted into the attachment hole 651 provided in the side member 650. At this time, the claw 222 of the elastic piece 221 formed on the peripheral wall of the cylindrical body 200 comes into contact with the peripheral edge of the mounting hole 651, and the elastic piece 221 is pushed along the inclined surface 225 of the claw 222 to bend inward. When the insertion is further continued, the flange 224 comes into contact with the side member 650, and the claw 222 comes out of the mounting hole 651 and engages with the back surface of the side member 650. Thus, the hose connector 100 is attached to the side member 650 by sandwiching the periphery of the attachment hole 651 between the claw 222 and the flange 224.

Connect the hose connector 100 to the side member 65
After that, the end of the hose connector 100 having the tapered portion 270 is inserted into the inner periphery of the drain side of the drain hose 750, and the drain hose 750 and the hose connector 10 are inserted.
0 is connected. At this time, since the hose connector 100 has an elbow shape, the hose connector 100 can be arranged along the side member 650 without bending the drain hose 750.
The drain hose 750 can be compactly stored inside the vehicle body. The hose connector 100 is connected to the drain hose 750 in advance, and the hose connector 1
00 may be attached to the side member 650.

Further, since the hole 230 in which the fitting protrusion 320 of the filter cap 300 is fitted is arranged at the base of the elastic piece 221 having the claw 222, the hose connector 1
00 attached to the side member 650, the elastic piece 2
Even if a force that bends inwardly acts, the fitting projection 320 of the filter cap 300 restricts the inward bending of the elastic piece 221 to some extent, so that the hose connector 100 can be prevented from coming off the mounting hole 651. .

The operation of the hose connector 100 will be described. When the pressure in the fuel tank 610 becomes high and gas is released from the fuel tank 610, gasoline contained in the gas is stored in the canister device 630. It is recovered by the absorbed absorbent. The gas from which the gasoline has been removed and the gasoline that has not been completely recovered by the absorbent are discharged to the outside as a drain through the drain hose 750 and the hose connector 100.

On the other hand, when the engine 620 is operating, the gasoline recovered by the canister device 630 is
After returning halfway through the gas discharge pipe 730, the gas is supplied to the engine 620 through the recovered fuel supply pipe 740. At this time, air flows from the atmosphere through the hose connector 100 and the drain hose 750. At that time, as described above, the opening 210 of the hose connector 100
Since the filter cap 300 having the grid 310 is attached, it is possible to prevent foreign substances accompanying the inflow air from entering the inside. Furthermore, since the lattice 310 has a shape in which the central portion 311 on the atmosphere side is the most protruding, even when foreign matter having a large area such as fallen leaves is stuck, a gap is formed in the peripheral portion and the entire surface is closed. Can be prevented. Furthermore, the hose connector 100 can be manufactured without requiring a significant design change or the like, since it is only necessary to attach the filter cap 300 to the opening of the existing hose connector.

6 to 8 show another embodiment of the hose connector according to the present invention. FIG. 6 is a side sectional view of the hose connector, FIG. 7 is a sectional view showing a mold for injection-molding the hose connector, FIG. 8 shows a core used at the time of injection-molding the hose connector, ) Is a front view of the first core, (B) is a side view of the core, (C) is a front view of the second core, and (D) is a side view of the core. In addition,
In the following description of the embodiment, the same reference numerals are given to substantially the same portions as the above embodiment, and the description thereof will be omitted or simplified.

As shown in FIG. 6, this hose connector 1
10, a filter portion 260 is provided at the corner portion 250 of the elbow-shaped cylinder 200, and is inclined from the inner corner portion 251 to the outer corner portion 252. That is, instead of attaching the filter cap 300 to the hose connector 100, the filter section 260 is provided integrally with the tubular body 200.

The hose connector 110 can be integrally formed by injection molding using a mold shown in FIGS. This mold has a pair of molds 400 (only one of them is shown in FIG. 7) that opens and closes in accordance with the injection timing of the resin. The pair of dies 400 are each formed with a concave portion 401 having a shape adapted to the outer periphery of the hose connector 110. By closing the pair of dies 400, the concave portions 401 are aligned with each other to form a cavity space into which the resin is injected. It has become. Also, the mold 400
The hole 402 into which the first core 510 is inserted and the second hole
A hole 403 for inserting a core 520 is provided, and a first core 510 and a second core 520 are removably inserted through these holes 402 and 403. First
The core 510 is formed of a rod-shaped member having a tip end surface having an inclined surface, and having a comb-shaped projection 511 on the inclined surface. The second core 520 has a distal end surface having the tip end surface of the first core. And a rod-shaped member having a comb-shaped projection 521 on the inclined surface. First core 510
The protrusion 511 of the second core 520 and the protrusion 511 of the
When they abut each other, they are orthogonal to each other, thereby forming a lattice-shaped empty space.

At the time of molding, first, a pair of molds 400 is closed to form a cavity including the concave portion 401, and the first core 510 and the second core 520 are inserted into the cavity, and The protrusion 511 of the second core 520 and the protrusion 521 of the second core 520 are abutted. In this state,
A thermoplastic resin or the like is injected into a gap between the concave portion 401 of the pair of molds 400 and the first core 510 and the second core 520, that is, a cavity space, and is solidified. And the first
The core 510 and the second core 520 are pulled out of the mold 400.
Is opened to take out the formed hose connector 110. In addition, the filter part 260 is provided with the protrusion 5 of the first core 510.
At a portion where the projection 11 and the projection 521 of the second core 520 abut each other, an inclination that bisects an intersection angle between the axis L1 of the first core 510 and the axis L2 of the second core 520. It is formed at an angle.

According to the hose connector 110, since the cylindrical body 200 and the filter part 260 are integrally formed of a synthetic resin, the number of parts is reduced as compared with the case where the cylindrical body and the filter part are formed separately. Therefore, productivity can be improved. Further, by setting the inclination angle of the filter unit 260 to an angle obtained by bisecting the intersection angle between the axis L1 of the first core 510 and the axis L2 of the second core 520,
The area of the filter unit 260 can be increased, and the resistance of the fluid flowing inside the cylinder 200 can be reduced.

FIGS. 9 to 11 show still another embodiment of the hose connector according to the present invention. 9 is a side sectional view of the hose connector, FIG. 10 is a sectional view showing a mold for injection-molding the hose connector, and FIG. 11 shows a core used at the time of injection-molding the hose connector.
(A) is a front view of the first core, (B) is a bottom view of the core, (C) is a plan view of the second core, and (D) is a plan view of the core.

This hose connector 120 is obtained by changing the shape of the filter portion in the hose connector shown in FIGS. That is, this hose connector 120
Has a cylindrical body 200 bent in an elbow shape, and a filter part 260 is formed at a corner 250 of the cylindrical body 200. However, in this embodiment, the inside 25 of the corner 250
1, a wall 253 projecting toward the inner diameter side is formed.
The outer circumference 254 of the hose connector 120 is formed in parallel with the axis of one end of the hose connector 120.

When molding the hose connector 120, a first core 510 having a shape as shown in FIGS.
And a second core 520 are used. That is, the first core 510 has a flat surface 5 along the axis L4 at the tip end thereof.
12 and a wall surface 513 perpendicular to this plane. Further, the second core 520 is provided with the first core 51.
A plurality of projections 521 that abut on the plane 512
The protrusion 521 forms a hole for the filter 260.

As described above, by forming the filter section 260 along a plane parallel to the axis of one end of the hose connector 120, the width of the filter section 260 is made to be the full inner diameter of the hose connector 120. And the filter area can be increased.

FIG. 12 shows another example of the projection formed on the second core 520 in the embodiment shown in FIGS.

That is, in the example of FIG. 12A, a filter portion having a plurality of pin-shaped protrusions 521a and a plurality of round small holes is formed. In the example of FIG. 12 (B), a filter portion having a plurality of semicircular arc-shaped protrusions in which the protrusions 521b are arranged concentrically and having a concentric arc-shaped opening is formed.

In the embodiment shown in FIGS. 1 to 5, a straight cylinder may be used instead of the cylinder 200 bent in an elbow shape.

Although the embodiment shown in FIGS. 1 to 12 is applied to a drain hose of a canister device of an automobile, the present invention is applied to a connector for fixing other various hoses to a structure. Can be.

[0054]

As described above, according to the present invention,
By providing a filter in the hose connector for connecting the end of the hose to the structure, it is possible to prevent foreign matter and the like from entering the hose. According to the first aspect of the present invention, the above-described effect can be obtained only by attaching the filter cap to the opening of the existing hose connector. Therefore, the conventional hose connector is not used without a significant design change. It can also be manufactured. Furthermore, in the second aspect of the present invention, since the filter portion is disposed at the corner of the cylinder bent in an elbow shape, the filter portion and the cylinder can be integrally formed of a synthetic resin. Thus, the number of components can be reduced as compared with the case where the cylinder and the filter unit are formed separately, so that productivity can be improved. Still further, according to the third aspect of the present invention, the filter section is inclined at the corner of the cylindrical body bent in an elbow shape, so that the area of the filter section is increased, and the flow of the fluid flowing inside the cylindrical body is increased. The resistance can be reduced and the fluid can flow smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of a hose connector according to an embodiment of the present invention with a filter cap removed.

FIGS. 2A and 2B show a state in which a filter cap of the hose connector is attached, wherein FIG. 2A is a side view and FIG. 2B is a bottom view.

FIG. 3 shows a filter cap of the hose connector;
(A) is a front view, (B) is a side view, (C) is a bottom view,
(D) is a plan view.

4A and 4B are cross-sectional views of a filter cap of the hose connector, in which FIG. 3A is a cross-sectional view taken along the line AA ′ in FIG. 3C, and FIG. It is sectional drawing which followed the B 'arrow line.

FIG. 5 is a sectional view showing a state where the hose connector is attached to a vehicle body.

FIG. 6 is a side sectional view showing another embodiment of the hose connector according to the present invention.

FIG. 7 is a side sectional view showing a mold for injection-molding the hose connector.

8A and 8B show a core used during injection molding of the hose connector, FIG. 8A is a front view of a first core, FIG. 8B is a side view of the core, and FIG. FIG. 2D is a front view of the core, and FIG.

FIG. 9 is a side sectional view showing still another embodiment of the hose connector according to the present invention.

FIG. 10 is a side sectional view showing a mold for injection-molding the hose connector.

11A and 11B show a core used during injection molding of the hose connector, wherein FIG. 11A is a front view of a first core, FIG. 11B is a bottom view of the core, and FIG. FIG. 3D is a plan view of the core, and FIG.

FIG. 12 is a plan view showing another example of the protrusion formed on the inclined end surface of the second core.

FIG. 13 is a perspective view schematically showing a fuel tank peripheral device.

[Explanation of symbols]

 100, 110, 120 Hose connector 200 Tubular body 210 Opening 220 Locking part 230 Hole 240 Groove 250 Corner 250 Filter part 300 Filter cap 310 Lattice 320 Fitting protrusion 330 Frame

Claims (3)

[Claims] 1. A hose connector connected to one end of a hose and connected to a structure, wherein the hose connector has a cylindrical body as a whole, one end of which is connected to the hose and the other end of which is formed in a mounting hole of the structure. A hose connector with a filter, comprising: a locking portion to be fitted; and a filter cap attached to the other end opening. 2. A hose connector connected to one end of a hose and connected to a structure, wherein the hose connector as a whole has a cylindrical body bent in an elbow shape, one end of which is connected to the hose and the other end of which is connected to the outer periphery. It has a locking part to be fitted in a mounting hole of a structure, a filter part arranged at a corner of the elbow-shaped cylinder is provided, and the whole is integrally formed of synthetic resin. Hose connector with filter. 3. The hose connector with a filter according to claim 2, wherein the filter portion is inclined from an inner corner of the elbow-shaped cylinder.