JPH10176754A - Joining tool and joining seal structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten an assembly work time and to reduce the number of working processes by a method wherein a fuel filter is arranged in a filter case, the case and the end plate of the filter are arranged in an approaching state in a manner that the through-holes thereof are positioned concentrically to each other, a fuel pipe is inserted in the two through-holes, and when the pipe is joined with the case and the filter end plate, the pipe is joined with the case and the filter end plate through one action for sealing. SOLUTION: A packing 20 formed of an elastic substance is fitted in an inserting state in the through-holes 5 and 17 of a case 1 and a filter end plate 13, respectively. The central hole 24 of the packing 20 has an inside diameter on the base end side larger than the outside diameter of a pipe and an inside diameter on the tip side lower than the outside diameter thereof and forms a taper hole wherein an inside diameter is decreased toward the tip side. When a pipe 30 is inserted in the central hole 24, the tip side of the central hole 24 is spread and the pressure contact parts 27 and 28 of the outer peripheral surface of the packing 20 are forced into pressure contact with the peripheral edge parts of the through-holes 5 and 17 for sealing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a joint and a joint seal structure using the same.

[0002]

2. Description of the Related Art Generally, fuel in a vehicle fuel tank is filtered by a fuel filter and supplied to an engine. The fuel filter is usually arranged on a side close to the engine.
On the other hand, from the viewpoint of unitizing the fuel filter with a fuel pump or the like, it is conceivable that the fuel filter is housed in a filter case and disposed in the fuel tank. In this case, the filter case or the fuel filter (the It is necessary to seal and connect a fuel pipe for fuel supply to the end plate).

As a joint sealing structure used in such a structure, for example, as shown in FIG. 6 or FIG. 7, through holes b, b,. The fuel filter c is accommodated in the filter c, and the end plates c1 and c1 of the filter c and the inner surface of the filter case a opposed thereto are adhered with an adhesive such as an epoxy-based material so that the inside and the outside of the filter c are liquid-tight. A fuel pipe e is inserted into each of the through holes b of the filter case a, and an O-ring f is interposed between the peripheral portion of the through hole b and the outer peripheral surface of the pipe e. A flange e1 is formed and this flange e1 is
A structure in which a liquid-tight seal is formed between the through hole b of the filter case a and the pipe e by performing ring spot welding on the peripheral filter case a is conceivable.

[0004]

However, in the above-described structure, since the end plates c1 and c1 of the filter c and the inner surface of the filter case a are bonded with an adhesive, it takes time to cure the adhesive. As a result, it is impossible to proceed to the next step until the curing is completed, so that there is a problem that the assembling work time is increased and the number of work steps is increased.

[0005] Further, even when an O-ring f is interposed between the peripheral portion of the through hole b and the outer peripheral surface of the pipe e, or when a flange e1 is formed on the pipe e to perform ring spot welding,
An operation for forming the groove e2 and the flange e1 for accommodating the O-ring f in the pipe e or a welding operation for the flange e1 is necessary, and it is inevitable that the number of operation steps increases.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to improve the joint structure in the case where a pipe is joined to a filter case or a fuel filter in a sealed state as described above. By doing so, both members can be easily joined and sealed with one touch,
An object of the present invention is to reduce the assembly work time and the number of work steps.

[0007]

In order to achieve the above-mentioned object, according to the present invention, an elastic body is provided between a through-hole in a mounting portion such as a filter case and a filter and a mounting member such as a fuel pipe. The joining tool is interposed, and this joining tool has a tapered center hole, and when the mounting member is inserted into the center hole, the distal end side expands, so that the outer peripheral surface becomes the peripheral portion of the through hole. To be press-sealed.

More specifically, according to the first aspect of the present invention, a cylindrical or cylindrical mounting member is inserted into a center hole while being inserted into a through hole of a mounting portion from the front end side. It is an invention of a connector made of an elastic body for joining to a mounting portion.

The connector is provided integrally with the connector body having the center hole formed therethrough and is provided integrally with the base end of the connector body, and has an outer diameter larger than the inner diameter of the through hole of the mounting portion. A flange is provided on the outer peripheral surface of the connector main body, and at least one pressure contact portion capable of pressure-sealing the peripheral portion of the through hole of the attached portion.

[0010] The center hole is formed as a tapered hole in which at least a region corresponding to the press contact portion has a smaller diameter than the outer diameter of the mounting member and an inner diameter decreases from the base end to the distal end. When the mounting member is inserted through the center hole, the front end side of the center hole is expanded so that the press-contact portion is press-sealed to the peripheral portion of the through-hole of the mounted portion.

[0011] The invention according to claim 3 is that the through hole of the mounting portion has
A connecting member made of an elastic body having a center hole is inserted from the distal end side, and a columnar or cylindrical mounting member is inserted into the center hole of the connecting member, and the mounting member is connected to the mounting portion via the connecting member. It is an invention of a joint seal structure to be joined to a joint.

The connector has a connector body having the center hole formed therethrough. The connector has a base end with an outer diameter larger than the inner diameter of the through-hole of the mounting portion. Orientation flange is formed integrally, and on the outer peripheral surface of the connector body,
At least one press-contact portion capable of press-contact sealing is formed at a peripheral portion of the through hole of the mounting portion.

The center hole of the connector is a tapered hole in which at least the area corresponding to the press-contact portion is smaller in diameter than the outer diameter of the mounting member and whose inner diameter decreases from the base end toward the distal end. In a state where the mounting member is inserted into the center hole of the connector, the front end side of the center hole is expanded, so that the press-contact portion of the connector is press-sealed to the peripheral portion of the through-hole of the mounting portion. Configuration.

According to the first or third aspect of the present invention, when the mounting member is bonded to the mounting portion, first, the bonding tool is directed outward from the base end of the bonding tool body to the through hole of the mounting portion from the distal end side. Insert until the flange touches the part to be mounted, then
The mounting member is inserted into the center hole of the connector from the base end side. Since the center hole is a tapered hole having a smaller diameter from the base end to the front end, the front end of the center hole is pushed and expanded with the insertion of the mounting member. Thus, the press contact portion is press-sealed to the peripheral portion of the through hole of the attached portion. That is, the gap between the outer peripheral surface of the mounting member and the inner peripheral surface of the center hole of the joint is pressed and sealed by the expansion of the center hole, and the gap between the peripheral edge of the through hole of the part to be attached and the outer peripheral surface of the joint is formed. Is sealed by press-contact of the press-contact portion to the periphery of the through hole.

As described above, the fitting is simply inserted into the through-hole of the portion to be mounted, and the mounting member is inserted through the center hole of the mounting member. , The mounting member can be assembled to the mounting portion with a single touch, and the conventional bonding process for sealing can be eliminated to shorten the assembly work time and reduce the number of work steps. be able to.

Further, since an outward flange is formed at the base end of the connector main body in the connector, the mounting member is inserted into the center hole of the connector which is inserted into the through hole of the portion to be mounted. In this case, even if the center hole is a tapered hole, the flange can prevent the connector from being caught in the through hole together with the mounting member.

According to the second aspect of the present invention, the outer peripheral surface of the distal end portion of the connector main body in the connector of the first aspect is formed in a tapered shape so as to have a smaller diameter toward the distal end side. With this configuration, the connector can be easily inserted into the through-hole of the mounted portion by the guide of the tapered tip portion of the connector main body.

According to a fourth aspect of the present invention, in the joint sealing structure of the third aspect, a cylindrical portion such as a curling portion or a burring portion is provided on the periphery of the through hole of the attached portion, while the outward flange of the joining device is provided. And a concave groove for engaging with the cylindrical portion. With this configuration, when the mounting member is inserted into the center hole of the joint, the cylindrical portion on the attached portion and the concave groove of the outward flange of the joint are engaged, so that the joint is caught in the through hole. Can be more effectively prevented.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) FIG. 4 shows an overall configuration of a fuel filter unit A1 according to Embodiment 1 of the present invention, and 1 is a substantially closed cylindrical shape disposed in a fuel tank (not shown) mounted on a vehicle. This filter case is composed of a case body 2 having a cylindrical shape with a bottom and opened downward, and a case body 2 having a bottom.
A lid 3 is welded and integrated with a flange 2a around the opening at the lower end so as to close and close the opening in a liquid-tight manner. A circular upper wall through-hole 5 having a predetermined inner diameter R1 is formed at the center of the upper wall (bottom wall of the case body 2) of the filter case 1, and the upper wall is formed at the center of the lower wall (lid 3). A circular lower wall through hole 6 having the same inner diameter R1 as the hole 5 is formed. The lower part of the side wall of the filter case 1 bulges radially outward, and a circular side wall through hole 7 having the same inner diameter R1 as the upper and lower wall through holes 5 and 6 is formed in the wall of the bulge part 1a. I have. At the periphery of each of the through holes 5 to 7, the through holes 5 to 7
A curling portion 8 as a cylindrical portion bent outward in the radial direction (a different cylindrical portion such as a burring portion, for example) may be formed.

A fuel filter 11 is accommodated in the filter case 1. The filter 11 includes a core pipe 12 having a large number of holes (not shown) formed therein, disk-shaped upper and lower end plates 13 and 14 concentrically mounted and fixed to both ends of the core pipe 12, respectively. A filter member 15 disposed in a circumferentially folded state around the pipe 12 and having upper and lower ends bonded to the end plates 13 and 14 in a liquid-tight seal state, respectively; Have through holes 17 and 18, respectively. Each end plate 13,
The through-holes 17 and 18 of the filter case 1 have an inner diameter R2 slightly smaller than the upper and lower wall through-holes 5 and 6 of the filter case 1 and have the same diameter as the inner diameter of the core pipe 12.
It is bent inward by a predetermined length into a cylindrical shape and is integrally welded to the inner surface of the core pipe 12 in a liquid-tight manner so as to be flush with the inner surface. In other words, in the filter 11, the upper end plate through hole 17 of the filter 11 and the upper wall through hole 5 of the filter 11, and the lower end plate through hole 18 and the lower wall through hole 6 of the case 1 are substantially formed in the filter case 1. They are arranged and housed concentrically.

The upper packing 20 is provided in both the upper wall through hole 5 of the filter case 1 and the upper end plate through hole 17 of the filter 11, and the lower wall through hole 6 and the filter 11 of the case 1 are provided.
A lower packing 21 is fitted in the lower end plate through hole 18, and a lateral packing 22 is fitted in the side wall through hole 7 of the case 1. All of these packings 20 to 22 have the same structure (the same parts will be described with the same reference numerals), and constitute a connector.
It is made of an elastic body having a center hole 24 such as rubber or plastic. The fuel pipes 30, 30,... As mounting members are respectively inserted into the respective center holes 24 of the packings 20 to 22, so that each fuel pipe 30 is connected to the filter case 1 and the end plate 13 of the fuel filter 11. , 14 or the filter case 1 via packings 20 to 22.

The fuel pipe 30 inserted through the side wall through hole 7 of the filter case 1 is connected to a fuel pump (not shown), and the fuel pipe 30 inserted through the upper wall through hole 5 is connected to a vehicle engine (not shown). Further, the fuel pipes 30 inserted through the lower wall through holes 6 are respectively connected to pressure regulators (not shown). Therefore, in the filter unit A1, the fuel in the tank discharged from the fuel pump is
The fuel flows into the filter case 1 from the fuel pipe 30 on the side wall, and the fuel is filtered through the filter member 15 and then flows through the hole into the core pipe 12. The fuel is supplied to the engine via the pipe 30 and a part of the fuel in the core pipe 12 is returned to the tank via the fuel pipe 30 on the lower wall of the case 1 and the pressure regulator to adjust the fuel pressure. .

As shown in detail in FIG. 3, each of the packings 20 to 22 has a substantially cylindrical packing body 23 (joining body) having the center hole 24 formed therethrough. At the base end, an outward flange 25 having a diameter larger than the inner diameter R1 of the through holes 5 to 7 of the filter case 1 is provided.
Are integrally formed. In the outward flange 25, a ring groove 26 (concave groove) that can be engaged with the curling portion 8 on the periphery of the through holes 5 to 7 is formed in the side surface base on the tip side of the packings 20 to 22.

On the outer peripheral surface of the packing body 23, the inner diameter R1 of the through holes 5 to 7 of the filter case 1 in the free state is set.
A first pressure contact portion 27 having a slightly larger outer diameter than the first pressure contact portion 27 and capable of being press-sealed to the peripheral edges of the through holes 5 to 7; It has a diameter larger than that of the first pressure contact portion 27, has an outer diameter substantially the same as the inner diameter R2 of the end plate through holes 17, 18 of the fuel filter 11, and is capable of pressure sealing to the peripheral portions of the through holes 17, 18. A second pressure contact portion 28 is formed.

Further, the outer peripheral surface of the distal end portion of the packing body 23 is formed in a tapered shape so as to have a smaller diameter toward the distal end side.

The inner diameter r1 at the base end of the center hole 24 of the packings 20 to 22 is set larger than the outer diameter of the fuel pipe 30, and the inner diameter r2 at the tip end is set smaller than the outer diameter of the pipe 30. That is, the center hole 24 is formed in the first hole.
A substantially entire area including a portion corresponding to the second pressure contact portions 27 and 28 is formed in a tapered hole having a smaller diameter than the outer diameter of the fuel pipe 30 and an inner diameter decreasing from the base end to the tip end. As shown in FIG. 1, when the fuel pipe 30 is inserted into the center holes 24 of the packings 20 to 22, the leading ends of the center holes 24 are expanded, so that the packings 20 to 2 are opened.
(2) The first pressure contact portion 27 on the outer peripheral surface is pressure-sealed at the periphery of the through holes 5 to 7 of the filter case 1, and the second pressure contact portion 28 is pressure-sealed at the periphery of the end plate through holes 17 and 18 of the fuel filter 11. It has been made.

Next, a case where the fuel filter unit A1 of the above embodiment is assembled will be described. The filter case 1 is previously separated into the case body 2 and the lid 3, and in this state, the upper packing 20 is inserted into the through hole 5 of the case body 2 (the upper wall of the filter case 1) from the upper side (outside) of the case 1. Is inserted so that the tip is downward.
In addition, the lower packing 21 is inserted into the through hole 6 of the lid 3 (the lower wall of the filter case 1) from the lower side (outside) of the case 1 so that the front end thereof faces upward. Furthermore, for the side wall through hole 7 of the filter case 1, the case 1
The lateral packing 2 is inserted from the outside.

At this time, each of the packings 20 to 22 is
The outward flange 25 at the base end of the packing body 23 is fitted until it substantially abuts the outer surface of the filter case 1. As a result, the distal ends of the packings 20 to 22 (packing body 23) protrude from the through holes 5 to 7 toward the inside of the filter case 1, and the filter case 1 is inserted into the ring groove 26 at the base of the outward flange 25. Of the through holes 5 to 7 are engaged with each other. Further, the first pressure contact portions 27 on the outer peripheral surface of the packing body 23 are arranged at positions corresponding to the peripheral edges of the through holes 5 to 7 (see FIG. 2).

Further, since the outer peripheral surface of the leading end of the packing body 23 in each of the packings 20 to 22 has a tapered shape, it is easy to insert the packings 20 to 22 into the through holes 5 to 7.

Next, the fuel filter 11 is inserted into the case main body 2 and penetrated through the through hole 17 of the upper end plate 13 and the upper through hole 5 of the case main body 2 as shown in detail in FIG. The tip of the upper packing 20 is fitted. Thereafter, the lower end opening of the case body 2 is inserted into the through hole 18 of the lower end plate 14 of the fuel filter 11 and the through hole 6 of the lid 3 while being positioned so as to be closed by the lid 3. The tip of the lower packing 21 is fitted.

At this time, since the outer peripheral surface of the tip of the packing body 23 of each of the packings 20 and 21 has a tapered shape,
By the guide of the tapered tip portion, the filter 11 can be easily positioned such that the through holes 17, 18 of the end plates 13, 14 are concentric with the through holes 5, 6 of the filter case 1, and the packing thereof is provided. 20, 21 through holes 17,
18 can be easily inserted.

In this state, the packings 20, 2
The second pressure contact portion 28 on the outer peripheral surface of the packing body 23 is formed with through holes 17, 18 in the end plates 13, 14 of the filter 11.
Are arranged at positions corresponding to the peripheral portions of the.

Thereafter, as shown in FIGS. 1 and 4, fuel pipes 30, 30,... Are inserted from the outside of the case 1 into the center holes 24 of the packings 20 to 22, respectively. Thereby, the filter case 1, the fuel filter 11, and the fuel pipes 30 are fixedly integrated by the packings 20 to 22.

That is, since the center hole 24 of the packings 20 to 22 is a tapered hole having a smaller diameter from the base end to the front end, the front end of the center hole 24 is gradually moved as the fuel pipe 30 is inserted. Pushed and expanded, packing body 2
Also, the outer diameter of the outer peripheral surface of the outer ring 3 increases, and the outer diameter increases. As a result, the first pressure contact portion 27 on the outer peripheral surface of the packing body 23 is located at the peripheral edge of the through holes 5 and 6 of the filter case 1, and the second pressure contact portion 28 is located at the peripheral edge of the end plate through holes 17 and 18 of the fuel filter 11. Each of them is press-sealed (in the case of the horizontal packing 22, the first press-contact portion 27 is only press-sealed to the periphery of the through hole 7 of the filter case 1), and the outer peripheral surface of the fuel pipe 30 and the packings 20 to 22 are sealed. The inner peripheral surface of the center hole 24 is pressed against and sealed by the expansion of the central hole 24, and is sealed with the peripheral portions of the through holes 5 and 6 of the filter case 1 and the end plate through holes 17 and 18 of the fuel filter 11. The pressure contact portions 27, 27 are provided between the packings 20, 21 and the outer peripheral surface of the packing body 23, respectively.
Sealing is performed by press-contact of the peripheral portions of the through holes 5 and 6 with the through-hole 28.

At this time, an outward flange 25 is formed at the base end of the packing body 23, and the curling portions 8 around the through holes 5 to 7 of the filter case 1 are formed in the ring grooves 26 at the base of the outward flange 25. Are engaged, so that the fuel pipe 30 is inserted into the center hole 24 of the packings 20 to 22.
When the packings 20 to 22 try to pass through the through holes 5 to 7 together with the fuel pipe 30 when the gasket is inserted, the movement is limited to the outward flange 25 itself and the curling portion 8 and the ring groove 2.
6, and the packings 20 to 22 can be prevented from being caught inside the filter case 1.

Finally, the filter case 1 may be hermetically sealed by welding the periphery of the lid 3 to the flange 2a at the periphery of the opening at the lower end of the case body 2.

Therefore, in this embodiment, as described above, the through holes 5 and 6 of the upper and lower walls of the filter case 1 and the through holes 17 and
, And the lateral packing 22 is inserted into the side wall through hole 7 of the filter case 1, and the fuel pipes 30, 30,... Are inserted into the central holes 24 of the packings 20 to 22. Is inserted into the through holes 5 to 7 of the filter case 1 and the through holes 17 and 18 of the fuel filter 11 by the packing 20.
.. Can be assembled and fixed to the filter case 1 and the fuel pipes 30, 30,... To both of them with a single touch. In addition, the conventional filter adhering step can be eliminated to shorten the assembling work time and reduce the number of work steps.

In the above embodiment, before the filter case 1 is sealed by welding the case body 2 and the lid 3,
Fuel pipes 30, 3 are inserted into the center holes 24 of the packings 20 to 22.
.. Are inserted, the fuel pipes 30 may be inserted after the filter case 1 is sealed. In particular, regarding the through hole 7 in the side wall of the filter case 1, not only the insertion of the fuel pipe 30 but also the fitting of the packing 22 into the through hole 7 is performed after the filter case 1 is sealed (the case body of the filter case 1). After sealing the filter case 1 by welding the lid 3 to the side 2, the lateral packing 22 may be inserted into the side wall through hole 7 and the fuel pipe 30 may be inserted into the center hole 24).

(Embodiment 2) FIG. 5 shows a filter unit A2 according to Embodiment 2 (note that the same parts as those in FIGS. 1 to 4 are denoted by the same reference numerals and detailed description thereof is omitted). This is applied to a filter case 1 and a fuel filter 11 having different structures.

That is, in this embodiment, the center of the upper wall of the filter case 1 (the bottom wall of the case main body 2) is bulged upward, and is separated from the upper end plate 13 of the fuel filter 11 at a predetermined interval. The through-hole 5 is opened at the center of the bulging portion 1b. The upper packing 20 is inserted only into the through hole 5, and the fuel pipe 30 connected to the engine is inserted through the center hole 24 of the packing 20.

The filter case 1 does not have the side wall through-hole 7 as in the first embodiment, and the upper end plate 13 of the fuel filter 11 has a closed structure without the through-hole 17. A fuel pipe 30 joined to a lower wall of the fuel pump 1 is connected to a fuel pump. The outer diameter of the lower end plate 14 of the filter 11 is larger than that of the upper end plate 13, and the outer peripheral edge of the lower end plate 14 is sandwiched between the flange 2 a of the case body 2 and the lid 3. And are integrally welded. The other configuration is the same as that of the first embodiment. The fuel discharged from the fuel pump is caused to flow from the lower fuel pipe 30 into the core pipe 12 of the filter 11, and the fuel is supplied to the hole of the core pipe 12. From filter member 1
After passing through the filter case 5, the fuel gas flows into the filter case 1 and is supplied from the filter case 1 to the engine via the upper fuel pipe 30. Therefore, in this embodiment, the same operation and effect as those of the first embodiment can be obtained.

It should be noted that the present invention is directed to a filter unit A1, A disposed in a vehicle fuel tank as in the above embodiment.
The present invention is not limited to 2, and can be applied to other structures that require a press-sealing state. For example, the wiring cables are inserted into the through holes of the panel in the packings 20 to 2 of the above embodiment.
The present invention can also be applied to a case where the connector is inserted by using a connector having the same configuration as that of FIG. In this case, the number of the mounting portions having the through holes may be one (the side wall of the case 1 to which the fuel pipe 30 is assembled in the first embodiment, or the upper wall of the same case 1 in the second embodiment), or three. It may be the above.

[0043]

As described above, according to the first or third aspect of the present invention, a connector made of an elastic body is inserted into the through hole of the portion to be mounted, and a columnar or cylindrical member is inserted into the center hole of the connector. When the mounting member is inserted through the connecting member and the mounting member is connected to the mounting portion via the connecting member, the base of the connecting member main body of the connecting member is directed outward with a diameter larger than the inner diameter of the through hole of the mounting portion. While the flange is provided, the outer peripheral surface is provided with at least one press-contact portion that can be press-sealed at the peripheral portion of the through-hole of the mounted portion, and the center hole of the connector has at least a range corresponding to the press-contact portion outside the mounting member. A tapered hole whose diameter is smaller than the diameter and whose inner diameter decreases from the base end side toward the distal end side, when the mounting member is inserted through this center hole, the front end side of the center hole expands and the press-contact part becomes the mounting part. Pressure seal around the periphery of the through hole The center hole is opened and press-sealed between the outer peripheral surface of the member and the inner peripheral surface of the center hole of the connector. Sealing can be performed by pressing against the peripheral portion, facilitating assembly of the mounting member to the mounting portion, and eliminating the conventional bonding process to shorten the assembly work time and reduce the number of work steps. be able to.

According to the second aspect of the present invention, the outer peripheral surface of the distal end portion of the connector main body is formed in a tapered shape so as to have a smaller diameter toward the distal end side. It is possible to facilitate the insertion.

According to the fourth aspect of the present invention, the cylindrical portion is provided on the periphery of the through hole of the mounting portion, and the concave groove for engaging with the cylindrical portion is provided on the outward flange of the connector. The engagement between the shape portion and the concave groove of the outward flange can further effectively prevent the joining tool from being wound into the through hole when the mounting member is inserted into the center hole of the joining tool.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view showing a main part of a joint seal structure according to a first embodiment of the present invention.

FIG. 2 is a view corresponding to FIG. 1, showing a state in which only a connector is attached.

FIG. 3 is an enlarged sectional view of a packing.

FIG. 4 is a sectional view showing a fuel filter unit according to the first embodiment.

FIG. 5 is a diagram corresponding to FIG. 4 showing the second embodiment.

FIG. 6 is a diagram corresponding to FIG. 4 showing a conventional example.

FIG. 7 is a diagram corresponding to FIG. 4, showing another conventional example.

[Explanation of symbols]

 A1, A2 Fuel filter unit 1 Filter case (attached part) 5-7 Through hole 8 Curling part (tubular part) 11 Fuel filter (attached part) 13, 14 End plate 17, 18 Through hole 20-22 Packing ( 23) Packing body (Body body) 24 Center hole r1 Base end side inner diameter r2 End side inner diameter 25 Outward flange 26 Ring groove 27, 28 Pressure contact part 30 Fuel pipe (Mounting member)

Claims (4)

[Claims] 1. A cylindrical or cylindrical mounting member is inserted into a through hole of a portion to be mounted from a tip end side, and a cylindrical or cylindrical mounting member is inserted into a center hole, and an elastic body for joining the mounting member to the portion to be mounted. A connector body having the center hole formed therethrough; and an outward flange provided integrally with a base end of the connector body and having a diameter larger than an inner diameter of the through hole of the attached portion. And at least one pressure contact portion provided on an outer peripheral surface of the connector main body and capable of pressure sealing at a peripheral portion of the through hole of the attached portion, wherein the center hole has a range corresponding to at least the pressure contact portion. Is formed in a tapered hole whose diameter is smaller than the outer diameter of the mounting member and whose inner diameter decreases from the base end side toward the distal end side. In a state where the mounting member is inserted through the center hole, the distal end of the center hole is formed. By expanding the side, the press contact part Connectors, characterized in that it is configured to be pressed against the seal on the periphery of the through hole. 2. The connector according to claim 1, wherein the outer peripheral surface of the distal end portion of the connector main body is formed in a tapered shape so as to have a smaller diameter toward the distal end side. 3. A connecting member made of an elastic body having a center hole is inserted into a through hole of the mounted portion from a distal end side, and a cylindrical or cylindrical mounting member is inserted into the center hole of the connecting member. ,
A bonding seal structure in which the mounting member is bonded to the mounted portion via a bonding tool, wherein the bonding tool includes a bonding tool body having the center hole formed therethrough; At the end, an outward flange having a diameter larger than the inner diameter of the through hole of the attached portion is integrally formed. On the outer peripheral surface of the connector body, a pressure contact seal is formed on the outer peripheral portion of the through hole of the attached portion. At least one possible pressure contact portion is formed, and the center hole of the connector has at least a region corresponding to the pressure contact portion smaller in diameter than the outer diameter of the mounting member and smaller in inner diameter from the base end side to the distal end side. In a state where the mounting member is inserted into the center hole of the connector, the front end side of the center hole expands, so that the press-contact portion is a peripheral portion of the through hole of the mounting portion. A sealing sheet characterized by being press-sealed to Structure. 4. The joint seal structure according to claim 3, wherein a cylindrical portion is provided on a periphery of the through hole of the attached portion, and a concave groove engaging with the cylindrical portion is formed on an outward flange of the connector. Is provided.