WO2015087639A1

WO2015087639A1 - Discharge device

Info

Publication number: WO2015087639A1
Application number: PCT/JP2014/079212
Authority: WO
Inventors: 幸夫杉藤
Original assignee: 幸夫杉藤
Priority date: 2013-12-09
Filing date: 2014-11-04
Publication date: 2015-06-18

Abstract

A discharge device (10) is provided with: a metal mesh (11B)(body portion) disposed around an outer surface (17A) of a muffler (17)(attached component), which is a constituent component of an intake/exhaust system of an internal combustion engine (19A) , and having continuity with the muffler (17); and protrusion portions (11A) protruding from a plurality of locations on the metal mesh (11B) and enabling discharge from the muffler (17) to outer air (13). The protrusion portions (11A) are formed in pointed-end shape and arranged along a direction in which the metal mesh (11B) is disposed around the outer surface (17A) of the muffler (17).

Description

Discharge device

The present invention relates to a discharge device that is mounted on an outer surface of a component that constitutes an intake / exhaust system of an internal combustion engine, and realizes discharge to the outside air.

Conventionally, with respect to a vehicle driven by an internal combustion engine, by mounting a discharge device such as a discharge antenna on the outer surface of a muffler that is a component constituting the intake and exhaust system of the internal combustion engine, and realizing discharge to the outside, A technique for improving the fuel consumption rate of a vehicle has been known (see, for example, Japanese Patent Application Laid-Open No. 05-238438).

Here, according to the description in Japanese Patent Laid-Open No. 05-238438, the discharge device mounted on the outer surface of the muffler is projected in a branched state from the muffler. For this reason, the technique described in Japanese Patent Application Laid-Open No. 05-238438 has a problem that the handleability of the muffler deteriorates due to the branching and protruding portion in the discharge device.

The present invention relates to a discharge device that is mounted on the outer surface of a component that constitutes an intake / exhaust system of an internal combustion engine, and eliminates a branching and protruding portion of the discharge device, thereby handling the component to which the discharge device is mounted. It is possible to suppress the deterioration of sex.

According to one feature of the present invention, there is provided a discharge device that realizes discharge from the attached component to the outside air using the components constituting the intake and exhaust system of the internal combustion engine as the attached components. The discharge device is disposed so as to surround the outer surface of the mounted part, and is connected to the body part connected to the mounted part, and protrudes from a plurality of locations on the body part, so that the outside air is discharged from the mounted part. And a projecting portion that realizes discharge to the. Each of the protruding portions is formed in a pointed shape, and is arranged along the direction in which the main body portion surrounds the outer surface of the mounted part.

The present inventor has realized that the effects exerted by the discharge device mounted on the outer surface of the components constituting the intake / exhaust system of the internal combustion engine are mainly realized by the contribution of the portion formed in the tip shape in the discharge device. As a result, the present invention has been achieved. That is, one feature of the present invention is that a portion that is branched and protruded in a discharge device mounted on the outer surface of the component is omitted while leaving a point-shaped portion protruding from the component. This is a means for solving the above-described problem. The “pointed shape” specifically refers to a barbed shape, a shape of a tip portion of a wire, or a shape of a corner portion in a convex polyhedron.

In one of preferred embodiments of the discharge device, the main body portion is formed in a long band shape by a cut wire mesh, and an edge portion cut by the wire mesh is a part to be attached. It is arranged in a state of surrounding the outer surface of. Moreover, each said protrusion part is formed of the metal wire of a metal mesh protruded from the edge cut | disconnected in the said metal mesh.

In one of the above embodiments, it is preferable that the discharge device includes a band that is formed in a long band shape corresponding to the main body portion and is wound around and attached to a part to be attached. In this case, the main body portion is covered with the band by being positioned along the surface of the band on the attached component side. Further, the wire mesh has a metal wire bent from the direction along the surface to be attached side in the wire mesh toward the side attached to the band, and has flexibility to deform according to the deformation of the band. It is set as the structure which has. Further, the band is attached to the attached component by an operation of winding and tightening the band around the attached component, thereby pressing the metal mesh of the main body portion against the outer surface of the attached component.

Further, in one of the above embodiments, the band and the main body portion are preferably joined to each other by a joining metal filled in a gap between the main body portion and the band. In the present specification, the “joining metal” refers to a metal that is deformed by an external force and is filled in a gap between the articles, thereby fixing these articles to each other. That is, the “joining metal” in the present specification refers to both a metal that is melted and solidified by welding or brazing and a metal that is extruded in the solid state from the inside of these articles in the pressure welding of metal articles. It is a concept that includes.

In one preferred embodiment different from the above-described embodiment, the above-described discharge device includes an end pipe, which is a component located at an end portion in an intake / exhaust system of an internal combustion engine, as an attached component. Configured to be mounted on the outer surface of the part. In this embodiment, the above-described main body portion is disposed so as to wrap around the outer surface of the mounted part, and each of the above-described protruding portions is a tip-shaped portion formed by making a plurality of cuts in the main body portion. .

In one of the above-described embodiments, it is preferable that a plurality of corner portions formed so as to sandwich each of the cuts by a plurality of cuts in the main body portion have a pointed shape as the projecting portions.

Further, in one of the above embodiments, each of the cuts is formed so as to have one or both of a burr and a fracture surface, and a portion having a pointed shape on the burr or the fracture surface is defined as the protruding portion. Those that function are also preferred.

In one of the preferred embodiments that is different from any of the above embodiments, the above-described discharge device uses bolts, which are components constituting the intake and exhaust systems of the internal combustion engine, as attachment parts. In this embodiment, the main body portion described above is a washer that is attached to the outer surface of the part to be attached by being attached to the bolt by inserting the bolt. Moreover, each protrusion part mentioned above is each protruded from the several location set along the outer periphery of the said washer.

Here, in each embodiment mentioned above, it is preferable that the main-body part is integrally joined with respect to the to-be-attached component by the joining metal with which the clearance gap between this main-body part and to-be-attached part was filled. .

Also, it is conceivable that the main body portion and the mounted parts are made of metal. In this case, the joining metal filled in the gap between the main body part and the mounted part is connected to the main body part and the mounted part via a metal surface film that covers each surface of the mounted part and the main body part. It is preferable that they are joined and made conductive.

In one of the preferred embodiments that is different from any of the above embodiments, the above-described discharge device includes a cable that can be wound around and attached to the outer surface of a part to be attached. In this embodiment, the main body portion described above is divided into a plurality of portions each having a protruding portion, and a cable is inserted into each portion.

Here, in one of the above-described embodiments, the main body portion is a wire divided into a plurality of wires, and each wire is connected at a plurality of locations on the cable so that the cable is inserted into the cable. It may be attached to the state.

Further, in one of the above-described embodiments, it is preferable that each of the parts divided in the main body part is rotatable in the circumferential direction of the cable with respect to the cable inserted through each part. In this case, a plurality of projecting portions are arranged so as to project to the same side in each portion divided in the main body portion.

It is a rear view showing the state when attaching the discharge device concerning a 1st embodiment to a muffler. FIG. 2 is a view taken along line II in FIG. 1. It is the elements on larger scale of FIG. FIG. 2 is a rear view similar to FIG. 1, showing a state in which the band and the metal mesh of the main body portion are displaced in the discharge device. It is a rear view showing the state when attaching the discharge device concerning 2nd Embodiment to a muffler. FIG. 6 is a view taken along line VI in FIG. 5. It is the elements on larger scale of FIG. It is the rear view showing the state after fixing the discharge device concerning a 2nd embodiment to a muffler. FIG. 9 is a view taken along arrow IX in FIG. 8. FIG. 10 is a sectional view taken along line XX in FIG. 9. It is a rear view showing the state which attached the discharge device concerning 3rd Embodiment to the end pipe. It is the elements on larger scale of FIG. FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 11. It is the rear view showing the state which attached the discharge device concerning a 4th embodiment to the end pipe. FIG. 15 is a cross-sectional view taken along line XV-XV in FIG. 14. It is the elements on larger scale of FIG. It is the rear view showing the state which attached the discharge device concerning a 5th embodiment to the end pipe. FIG. 18 is a sectional view taken along line XVIII-XVIII in FIG. It is the elements on larger scale of FIG. It is the rear view showing the state which attached the discharge device concerning a 6th embodiment to the end pipe. It is the elements on larger scale of FIG. It is a perspective view showing the state at the time of attaching the discharge device concerning 7th Embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following, for example, a detailed structure of an exhaust manifold disposed between the internal combustion engine 19A and the muffler 17 shown in FIG. Description is omitted.

<First Embodiment>
First, the configuration of the discharge device 10 according to the first embodiment will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, the discharge device 10 is attached in a state of being electrically connected to the muffler 17 on the outer surface 17A of the muffler 17 that is a metal part constituting the intake and exhaust system of the internal combustion engine 19A of the automobile 19. Thus, the discharge device realizes discharge from the muffler 17 to the outside air 13. That is, the muffler 17 to which the discharge device 10 is attached is a “part to be attached” in the above description of one feature of the present invention.

Note that an end pipe 18 protrudes from the muffler 17 toward the rear side of the automobile 19 (the front side of the paper as viewed in FIG. 1; hereinafter, also simply referred to as “rear side”). The end pipe 18 is a component located at an end portion on the exhaust side in the intake / exhaust system of the internal combustion engine 19A, and is disposed so that the outer surface 18A can be seen from the outside.

As shown in FIG. 1, the discharge device 10 includes a band 12 attached to the muffler 17 in a state of surrounding the muffler 17 and a discharge unit 11 that realizes discharge from the muffler 17 to the outside air.

The band 12 is formed of a metal (for example, stainless steel) into a long band shape (see FIG. 2) and has flexibility so that it can be wound around the muffler 17. Further, a fastening head 10 A capable of fastening the band 12 by inserting the other end 12 B of the band 12 is attached to the one end 12 A of the band 12. Thereby, the discharge device 10 can be attached on the outer surface 17A of the muffler 17 by a simple operation of winding the band 12 around the muffler 17 and tightening the band 12 with the tightening head 10A.

Here, the fastening head 10A can restrain the band 12 from being unwound from the muffler 17 by joining the band 12 inserted through the fastening head 10A by caulking joining (not shown). Yes. According to this configuration, the portion on the other end 12B side of the band 12 inserted through the fastening head 10A and further extended from the caulking joint can be appropriately cut out while maintaining the function of the discharge device 10. (Not shown).

As shown in FIGS. 1 to 3, the discharge part 11 is formed in a long band shape corresponding to the band 12 by a cut plain weave wire mesh 11 B. Here, the wire mesh 11B is referred to as a “main body portion” in the description of one feature of the present invention described above. Note that the wire mesh 11B is formed of stainless steel in the present embodiment.

Further, as shown in FIG. 3, the wire mesh 11B is positioned along the surface of the band 12 that is on the muffler 17 side. Therefore, as shown in FIG. 1, the wire mesh 11 B is disposed so as to surround the outer surface 17 A of the muffler 17 in a state where the discharge device 10 is attached on the outer surface 17 A of the muffler 17. And is covered by the band 12.

Further, as shown in FIG. 2, the wire mesh 11B is formed by cutting each side edge portion (portion where the protruding portion 11A of FIG. 2 is disposed) in the band shape. The band 12 is arranged along each side edge 12F. As a result, the side edges of the wire mesh 11 B that are left uncut are arranged so as to surround the muffler 17 together with the band 12.

Further, as shown in FIGS. 1 to 3, each side edge portion of the wire mesh 11B is formed by replacing the metal wire of the wire mesh 11B cut at a plurality of locations on each side edge portion with the shape of the tip portion of the wire rod. It is arrange | positioned so that it may protrude as the protrusion part 11A formed in the shape. In other words, the protruding portions 11A are each formed in a pointed shape, and are arranged along the direction in which the wire mesh 11B surrounds the outer surface 17A of the muffler 17.

According to each configuration described above, the discharge device 10 attached on the outer surface 17A of the muffler 17 has a plurality of protruding portions 11A from the wire mesh 11B that is disposed so as to surround the outer surface 17A of the muffler 17 as a whole. Mounted in a protruding state. That is, in the discharge device 10 attached to the muffler 17, the portion branched and protruded in the discharge device 10 is omitted while leaving the pointed portion protruding from the muffler 17. Thereby, it can suppress that the handleability of the muffler 17 to which the discharge device 10 is attached is deteriorated.

Moreover, according to each structure mentioned above, many protrusions along the direction which this metal net | network 11B surrounds the outer surface 17A of the muffler 17 in the side edge part of the metal net | network 11B which is a main-body part which surrounds the muffler 17 in the discharge device 10 are carried out. The portions 11A can be positioned side by side. And the number of the parts formed in the pointed shape in the discharge device 10 can be increased by a large number of the protruding portions 11A, and the function and effect exhibited by the discharge device 10 can be further increased.

Furthermore, according to each structure mentioned above, many protrusion part 11A of the discharge device 10 can be formed at once by the simple operation | work of cutting the metal mesh used as the material of the main-body part of the discharge part 11. FIG. As a result, it is possible to provide the discharge device 10 in which the trouble of manufacturing the multiple protruding portions 11A is simplified while having the multiple protruding portions 11A.

By the way, as shown in FIG. 3, the plain weave structure in the wire mesh 11B is provided with a metal wire bent in the wire mesh 11B from the direction along the surface on the muffler 17 side toward the side attached to the band 12. Is realized. Further, the wire mesh 11B is formed so as to have flexibility to allow the band 12 to be deformed. In addition, the band 12 is attached to the muffler 17 so as to be wound and tightened (see FIG. 1), thereby realizing the pressing of the wire net 11 B against the outer surface 17 A of the muffler 17. According to these configurations, by pressing and bending the wire mesh 11B toward the outer surface 17A of the muffler 17, a conduction failure between the outer surface 17A and the wire mesh 11B is suppressed by deformation (for example, elastic deformation) of the wire mesh 11B, The efficiency of discharge by the discharge device 10 can be made difficult to be lowered.

In this embodiment, the wire mesh 11B is separated from the band 12, and is attached only by pressing the muffler 17 against the outer surface 17A by the band 12. For this reason, as shown in FIGS. 1 and 4, the relative positions of the wire mesh 11 B and the band 12 may be displaced.

The present inventor conducted an experiment (hereinafter, also referred to as “measurement experiment”) in which the discharge device 10 quantitatively measures the effect of improving the fuel consumption rate of the internal combustion engine 19 A of the automobile 19. Hereinafter, the contents and results of the measurement experiment will be described.

The present inventor selects Toppo (registered trademark), which is a mini vehicle manufactured by Mitsubishi Motors Corporation, as a vehicle (hereinafter also referred to as “measurement vehicle”) as a subject of the measurement experiment, and runs the measurement experiment. The Nagoya Expressway No. 1 Minato Line and the City Center Loop Line were selected as the course. In detail, the driving course above is the Nagoya Expressway. From the Kurokawa Junction, enter the city center loop line via the No. 1 Minato Line, make eight rounds of this city center loop line, and then follow the No. 1 Minato Line to the Kurokawa Junction. It is a driving course to return to.

The above measurement experiment was performed according to the following procedures. Although the measurement experiment was conducted on October 2, 2013, the weather on that day was clear, and the temperature during the measurement vehicle running in the measurement experiment was around 26 [° C.]. there were.

(Ii) A measurement vehicle without the discharge device 10 is prepared, and fuel is supplied to the measurement vehicle until the tank is full near the Kurokawa junction.

(B) Record the cumulative mileage of the measurement vehicle displayed on the odometer of the measurement vehicle.

(Ha) Ride on the measurement vehicle and travel on the above-described traveling course so that the traveling speed is as constant as possible, and return to the place where the refueling was performed in (ii) above.

(Ii) Record the total travel distance of the measurement vehicle displayed on the odometer of the measurement vehicle, and subtract the total travel distance of the measurement vehicle recorded in (b) from the total travel distance to measure in (ha) above. Calculate the mileage of the car.

(E) While measuring the amount of oil supplied to the measurement vehicle, refuel until the tank is full. From the amount of oil until the vehicle is full and the mileage of the measurement vehicle calculated in (ii) above, the discharge device The fuel consumption rate of the measurement vehicle when the 10 is not installed is calculated.

(F) Attach the discharge device 10 to the muffler of the measurement vehicle.

(To) Get on the measuring vehicle and travel on the same traveling course as above (ha) as much as possible with the same traveling speed as above (ha), and refueling with (ii) and (ho) above Return to where it was done.

(Ci) Record the total travel distance of the measurement vehicle displayed on the odometer of the measurement vehicle, and subtract the total travel distance of the measurement vehicle recorded in (b) from this total travel distance to measure in Calculate the mileage of the car.

(Ri) While measuring the amount of oil supplied to the measuring vehicle, refuel until it is full. From the amount of oil until the vehicle is full and the mileage of the measuring vehicle calculated in (1) above, the discharge device The fuel consumption rate of the measurement vehicle in the state where 10 is mounted is calculated.

The experimental results of the above measurement experiment are shown in Table 1 below. Here, in Table 1, the fuel consumption rate is calculated as a travel distance per unit fuel amount (that is, a value obtained by dividing the travel distance by the fuel supply amount). For this reason, the fuel consumption rate of the measurement vehicle described in Table 1 is better as the numerical value is larger.

Also, in Table 1, the values of mileage and refueling amount are rounded to 3 significant figures and the fuel consumption rate is rounded to 4 significant figures.

From Table 1 above, it can be seen that by attaching the discharge device 10 to the muffler of the measurement vehicle in the measurement experiment, the fuel consumption rate of the measurement vehicle was improved by 20.5 [%] with three significant figures. Here, in the conventional technique described in Japanese Patent Laid-Open No. 05-238438, when the discharge device is attached to the muffler of the automobile, the fuel consumption rate of the automobile is improved by about 10%. From this, it can be said that the discharge device 10 according to the first embodiment has a greater effect of improving the fuel consumption rate of the internal combustion engine of the automobile as compared with the discharge device of the conventional technology.

<Second Embodiment>
Next, the configuration of the discharge device 20 according to the second embodiment will be described with reference to FIGS. The discharge device 20 according to the second embodiment is a modified embodiment of the discharge device 10 according to the first embodiment described above. Therefore, components common to the components described in the first embodiment are denoted by reference numerals in the description of the first embodiment, in which the tens digit is replaced with “2”. Therefore, detailed description thereof is omitted. Of the operational effects of the components of the discharge device 20, the detailed description of the components common to the operational effects of the components of the discharge device 10 is omitted.

As shown in FIGS. 6 and 7, the discharge device 20 according to the second embodiment includes a wire mesh 11 B (see FIG. 1) that is separate from the band 12 in the discharge device 10 according to the first embodiment. In this case, the band 22 is replaced with a wire mesh 21B bonded to the surface on the muffler 27 side.

The band 22 and the wire mesh 21B are overlapped so that the longitudinal directions of the respective belt shapes (the left-right direction in FIG. 6) coincide with each other, and are joined to each other by the joining metal 21C generated by melting the wire mesh 21B by welding. ing. According to this configuration, the band 22 and the wire mesh 21B of the discharge device 20 can be wound together and attached to the muffler 27 in a state where they are joined so as not to be separated from each other. Thereby, it is possible to provide the discharge device 10 with improved workability when attached to the muffler 27.

Here, as shown in FIG. 5, the band 22 and the wire mesh 21B are a predetermined number of places arranged in the longitudinal direction of the band shape (in this embodiment, eight places arranged at equal intervals, but one or more arbitrary places). In this case, the dots are joined in a dot shape. According to this configuration, it is possible to prevent the band 22 and the wire mesh 21B from being easily bent by mutual welding and difficult to be wound around the muffler 27.

In the discharge device 20 according to the second embodiment, the band 22 and the wire mesh 21B are joined together by direct spot welding by the direct spot welding device 26, as indicated by a virtual line in FIG. That is, the direct spot welding apparatus 26 first sandwiches the band 22 and the wire mesh 21B in contact with each other by the

electrodes

26A and 26B of the direct spot welding apparatus 26.

Next, the direct spot welding device 26 applies a voltage between the

electrodes

26A and 26B to cause a welding current 26C to flow through the band 22 and the wire mesh 21B. At this time, the welding current 26C flows in a concentrated manner on the metal wire constituting the wire mesh 21B, so that the wire mesh 21B is locally melted by the Joule heat to form the joining metal 21C, and the wire mesh 21B is banded by the joining metal 21C. It joins to 22 without a gap.

In addition, the Joule heat by the welding current 26C heats the band 22 together and slightly melts each surface located between the

electrodes

26A and 26B in the band 22 (not shown). As a result, a weld mark 22C is formed in the portion of the band 12 where the electrode 26A is in contact (see FIG. 7).

Now, as shown in FIGS. 8 to 10, the discharge device 20 can be fixed to the muffler 27 by welding after being wound around and attached to the muffler 27. In this case, the metal mesh 21B of the discharge device 20 is integrally joined to the muffler 27 by filling the gap between the muffler 27 and the metal mesh 21B with the joining metal 21D generated by the welding. .

According to the above configuration, as shown in FIG. 10, in the discharge device 20 attached to the muffler 27, the gap between the wire mesh 21B and the muffler 27 can be filled with the bonding metal 21D. As a result, it is possible to provide a discharge device 20 that is less likely to cause poor conduction due to entry of foreign matter such as dirt, sand, or machine oil into the gap, and in which a reduction in discharge efficiency is suppressed.

In the present embodiment, as shown in FIG. 8, the welding is performed in a predetermined number of locations arranged at equal intervals in the longitudinal direction of the band shape of the wire mesh 21 B (in this embodiment, there are four locations, but one or more locations). It can be any number of locations. Further, in the present embodiment, the welding location between the muffler 27 and the discharge device 20 (see the joining metal 21D in FIG. 8) is the welding location between the band 22 and the wire mesh 21B in the discharging device 20 (the joining metal 21C in FIG. 8). The position is set apart from the above.

In the present embodiment, the welding between the discharge device 20 and the muffler 27 is realized by indirect spot welding by the indirect spot welding device 25 as indicated by a virtual line in FIG. That is, the indirect spot welding device 25 first brings the welding electrode 25A into contact with the band 22 of the discharge device 20 attached to the muffler 27, and presses the band 22 toward the muffler 27 by the welding electrode 25A. At this time, the wire mesh 21B of the discharge device 20 is pressed between the muffler 27 and the band 22 (not shown).

Next, the indirect spot welding device 25 causes the ground electrode 25B separated by a predetermined distance from the welding electrode 25A to contact the outer surface 27A of the muffler 27. The indirect spot welding device 25 applies a voltage between the welding electrode 25A and the ground electrode 25B to cause a welding current 25C to flow through the band 22, the wire mesh 21B, and the muffler 27.

At this time, the welding current 25C flows in a concentrated manner on the metal wire constituting the wire mesh 21B, so that the wire mesh 21B is locally melted by the Joule heat to form the joining metal 21D. Since Joule heat generated by the welding current 25C heats the band 22 and softens the band 22, the welding electrode 25A locally pushes the band 22 toward the muffler 27 to form a welding impression 22D. For this reason, the joining metal 21 D generated by the welding current 25 C is filled with no gap between the welding impression 22 D of the band 22 and the outer surface of the muffler 27, and the muffler 27 and the discharge device 20 are joined.

In addition, when the welding current 25C flows, the band 22 and the muffler 27 are slightly melted at the respective surfaces of the portions that come into contact with the bonding metal 21D by the Joule heat of the welding current 25C (not shown). Further, the welding current 25C generates Joule heat even in a portion where the earth electrode 25B and the muffler 27 are in contact with each other, and a welding mark 27B (see FIGS. 9 and 10) due to the thermal effect of the Joule heat is generated. Muffler 27 is formed.

By the way, a metal article has a surface covered with a metal surface film unless special measures are taken. Specifically, the metal surface film is a film made of an oxide obtained by oxidizing a metal on the surface of an article, a corrosive substance obtained by corroding a metal on the surface of the article, or a substance attached to the surface of the article from the outside. In general, the electrical resistivity is higher than that of metal. In the present embodiment, as shown in FIG. 10, the discharge unit 21 and the band 22 of the discharge device 20 and the surfaces of the muffler 27 are covered with the

metal surface films

21E, 22E, and 27C. ing.

Here, in the indirect spot welding, the surfaces of the band 22 and the muffler 27 and the joining metal 21D are melted and joined without a gap. For this reason, as shown in FIG. 10, the band 22, the wire mesh 21B, and the muffler 27 are joined and conducted by the joining metal 21D without the

metal surface films

21E, 22E, and 27C. According to the configuration in which the metal mesh 21B and the muffler 27 are joined by the joining metal 21D without passing through the

metal surface films

21E and 27C, the conduction failure between the muffler 27 and the discharge portion 21 due to the metal surface films 21E and 27E is caused. Less likely to occur. Thereby, it is possible to provide the discharge device 20 in which the discharge efficiency is less likely to be reduced.

<Third Embodiment>
Next, the configuration of the discharge device 30 according to the third embodiment will be described with reference to FIGS. 11 to 13. The discharge device 30 according to the third embodiment is a modified embodiment of the discharge device 10 according to the first embodiment described above. Therefore, components common to the components described in the first embodiment are denoted by reference numerals in the description of the first embodiment, in which the tens digit is replaced with “3”. Therefore, detailed description thereof is omitted. Of the operational effects of the components of the discharge device 30, the detailed description of the components common to the operational effects of the components of the discharge device 10 is omitted.

As shown in FIGS. 11 and 13, the discharge device 30 according to the third embodiment is attached to the end pipe 38 on the outer surface 38 A of the end pipe 38. This is a discharge device that realizes discharge to the outside air 33. That is, the end pipe 38 to which the discharge device 30 is attached is a “part to be attached” in the above description of one feature of the present invention.

The discharge device 30 is made of metal and is disposed so as to surround the end pipe 38 instead of the discharge portion 11 (see FIG. 2) formed by the wire mesh 11B cut in the discharge device 10 according to the first embodiment. A discharge unit 31 is provided. Moreover, the discharge device 30 fastens the discharge device 30 to the end pipe 38 instead of the band 12 (see FIG. 1) attached to the state surrounding the muffler 17 in the discharge device 10 according to the first embodiment. A mounting bolt 32 is provided. The discharge device 30 shown in FIGS. 11 and 13 includes only one mounting bolt 32. However, the number and location of the mounting bolts 32 can be changed as appropriate.

The main body portion 31B of the discharge part 31 extends along the outer surface 38A of the end pipe 38, so that the outer surface 38A is disposed in a cylindrical shape. Further, the main body portion 31B includes an extension plate 31D at a portion located on the rear side (left side as viewed in FIG. 13) of the cylinder. The extension plate 31D extends toward the inner side of the end pipe 38 along the surface of the end 38E of the end pipe 38, thereby wrapping the end 38E of the end pipe 38. With this configuration, the main body portion 31 B is disposed so as to extend along the outer surface 38 A of the end pipe 38.

Here, the main body portion 31B has a mirror finish on its outer surface. Further, as shown in FIGS. 11 and 12, the extension plate 31 D has a plurality of cuts 31 E formed at the end edge on the inner side of the end pipe 38. The cuts 31E are formed to have the same length, and are arranged at regular intervals along the edge. As a result, the extension plate 31D has a design (a part of the details are not shown in FIG. 11) in which a hole having a shape resembling a gear is recognized when viewed from the rear side (the front side in FIG. 11). It has come to be presented. And by these structures, the design property of the main-body part 31B is improved.

Further, the protruding portion 31A of the discharge portion 31 is formed by making a plurality of corner portions formed so as to sandwich the respective cuts 31E by a plurality of cuts 31E in the extension plate 31D into a pointed shape. Thus, the protruding portions 31A are arranged in a state in which the main body portion 31B is arranged along the direction surrounding the outer surface 38A of the end pipe 38.

According to each said structure, the discharge device 30 can make it difficult to visually recognize the end pipe 38 from the outside by wrapping the end pipe 38 to which the discharge device 30 is attached by the main body portion 31B of the discharge portion 31. . As a result, the discharge device 30 is provided that can be attached to the end pipe to prevent the design of the device having the end pipe (for example, the automobile 19 shown in FIG. 1) from being deteriorated by the end pipe. can do.

Moreover, according to each said structure, the designability of the main-body part 31B exposed to the exterior can be improved by the design which the mirror finish of the outer surface and the extension plate 31D exhibit. Thus, it is possible to provide the discharge device 30 that can improve the design of the entire device (for example, the automobile 19 shown in FIG. 1) having the end pipe when attached to the end pipe.

<Fourth Embodiment>
Next, the configuration of the discharge device 40 according to the fourth embodiment will be described with reference to FIGS. 14 to 16. The discharge device 40 according to the fourth embodiment is a modified embodiment of the discharge device 30 according to the third embodiment described above. Therefore, components common to the components described in the third embodiment are denoted by reference numerals in which the tenth digit is replaced with “4” from the reference numerals used in the description of the third embodiment. Therefore, detailed description thereof is omitted. Of the operational effects of the respective configurations of the discharge device 40, those that are common to the operational effects of the respective configurations of the discharge device 30 will not be described in detail.

As shown in FIGS. 14 and 15, the discharge device 40 according to the fourth embodiment includes mounting bolts 32 for fastening the discharge device 30 to the end pipe 38 in the discharge device 30 according to the third embodiment. A plurality of clamping bolts 42 are replaced. Each of the clamping bolts 42 is a metal bolt that is attached in a state of being inserted into the main body portion 41 B of the discharge portion 41 and presses the tip of each of the clamping bolts 42 against the outer surface 48 A of the end pipe 48. Thereby, each clamping bolt 42 realizes that the discharge device 40 clamps the end pipe 48. The discharge device 40 shown in FIGS. 14 and 15 includes only two clamping bolts 42, but the number and arrangement positions of the clamping bolts 42 can be changed as appropriate.

As shown in FIGS. 15 and 16, the discharge device 40 can be fixed to the end pipe 48 by pressure contact in a state where the end pipe 48 is clamped by the respective clamping bolts 42. . In this case, the discharge device 40 is integrally joined to the end pipe 48 by the joining metal 42A generated by the pressure welding.

According to the above configuration, in the discharge device 40 in which the end pipe 48 is clamped, the gaps between the end pipe 48 and each clamping bolt 42 and between each clamping bolt 42 and the discharge portion 41 are formed by the joining metal 42A. Can be buried.

In the present embodiment, the pressure welding between the discharge device 40 and the end pipe 48 is realized by using an indirect spot welding device 45 as indicated by a virtual line in FIG. That is, in the press contact, an operator (not shown) first clamps the end pipe 48 with the clamping bolt 42 by screwing the clamping bolt 42 into the main body portion 41B of the discharge device 40 and tightening it.

At this time, the clamping bolt 42 of the discharge device 40 is in a state where the head side portion is pressed against the main body portion 41B and the tip thereof is pressed against the outer surface 48A of the end pipe 48. Here, in this embodiment, as shown in FIG. 16, the back side (lower side in FIG. 16) of the head of the clamping bolt 42 and the head side of the threaded portion of the clamping bolt 42 ( The upper portion in FIG. 16 is pressed against the main body portion 41B. Further, the clamping bolt 42, the main body portion 41B, and the end pipe 48 are covered with

metal surface films

42B, 41C, and 48C, respectively. The operator can also press the clamping bolt 42 against each of the main body portion 41 B and the end pipe 48 using a jig (not shown) such as a press device.

In a state where the clamping bolt 42 is pressed against each of the main body portion 41B and the end pipe 48, the operator places an indirect spot on the front side (upper side in FIG. 16) of the head of the clamping bolt 42. The welding electrode 45A of the welding device 45 is set in a contact state. Subsequently, the operator sets the ground electrode 45 B of the indirect spot welding device 45 in a state of being in contact with the outer surface 48 A of the end pipe 48. At this time, the welding electrode 45 A and the ground electrode 45 B are set apart from each other by a predetermined distance so as not to apply a pressing force to the abutted member.

Then, the operator applies a voltage between the welding electrode 45A and the ground electrode 45B of the indirect spot welding device 45 to flow a welding current 45C through the discharge device 40 and the end pipe 48. At this time, if the clamping bolt 42 is disposed at the end of the end pipe 48 on the main body portion 41B (on the right side in FIG. 16), the welding electrode 45A and the ground electrode 45B through which a welding current 45C flows are provided. It is possible to reduce the loss of the welding current 45C by shortening the distance between the two.

The welding current 45C flowing from the indirect spot welding device 45 flows in a concentrated manner on the clamping bolt 42, so that the clamping bolt 42 is pressed by the clamping bolt 42, the main body portion 41B and the end pipe 48 by the Joule heat. Softens the applied part. The clamping bolt 42, the main body portion 41B, and the softened portion of the end pipe 48 are formed by extruding the inner metal in a solid state so that each of the clamping bolt 42, the end pipe 48 and the

metal surface films

42B, 41C, 48C breaks through. 42A. The joining metal 42A fills the gaps between the tip of the clamping bolt 42 and the outer surface 48A of the end pipe 48 and between the clamping bolt 42 and the main body portion 41B. The discharge device 40 is joined to the conductive state integrally. Thereby, between the clamping bolt 42, the main body portion 41B, and the end pipe 48, as shown in FIG. 16, there is a portion that is joined and conducted without passing through the

metal surface films

42B, 41C, and 48C. .

Here, since the welding electrode 45A is set so as not to apply a pressing force to the clamping bolt 42 against which the welding electrode 45A abuts, the welding electrode 45A and the clamping electrode 45A are clamped from the inside of the clamping bolt 42. Metal is not pushed out into the gap between the bolts 42. According to this configuration, when flowing the welding current 45C, the welding electrode 45A is not joined to the clamping bolt 42 and the indentation is not formed on the softened clamping bolt 42. it can.

Note that the welding current 45C generates Joule heat even at a portion where the ground electrode 45B and the end pipe 48 are in contact with each other, and a welding mark 48B due to the thermal effect of the Joule heat (see FIGS. 15 and 16). Is formed in the end pipe 48.

<Fifth Embodiment>
Next, the configuration of the discharge device 50 according to the fifth embodiment will be described with reference to FIGS. 17 to 19. The discharge device 50 according to the fifth embodiment is a modified embodiment of the discharge device 40 according to the fourth embodiment described above. Therefore, the components common to the components described in the fourth embodiment are denoted by the reference numerals in the description of the fourth embodiment in which the tens digit is replaced with “5”. Therefore, detailed description thereof is omitted. Of the operational effects of the respective configurations of the discharge device 50, the detailed description of those common to the operational effects of the respective configurations of the discharge device 40 is omitted.

As shown in FIGS. 17 and 18, the discharge device 50 according to the fifth embodiment is a cylindrical main body that is attached to the end pipe 48 via a clamping bolt 42 in the discharge device 40 according to the fourth embodiment. The portion 41B (see FIG. 15) is replaced with a cylindrical main body portion 51B that is fitted and attached to the end pipe 58 by inserting the end 58E of the end pipe 58 inside.

As shown in FIGS. 18 and 19, the discharge device 50 can be fixed to the end pipe 58 by brazing while the end pipe 58 is fitted to the main body portion 51B. . In this case, the discharge device 50 is integrally joined to the end pipe 58 by the joining metal 52A generated by melting the brazing material (not shown) added in the brazing.

According to the above configuration, as shown in FIG. 19, the gap between the discharge portion 51 and the end pipe 58 in the discharge device 50 fitted with the end pipe 58 can be filled with the joining metal 52A.

Here, the brazing is performed according to the following procedure. First, an operator (not shown) applies flux (not shown), which is an agent for removing the

metal surface films

51C and 58C (see FIG. 19), to the main body 51B and the end pipe 58 of the discharge device 50. To do. Next, the operator fits the main body 51B and the end pipe 58 after the flux is applied, and heats them together. Then, the worker melts the brazing material by pressing a metal brazing material (not shown) toward the gap between the heated main body portion 51B and the end pipe 58 to form a joining metal 52A. The main part 51B and the end pipe 58 are joined to each other by filling the gap with the metal 52A. Subsequently, the worker adds a joining metal 52A in which the brazing material is melted toward the joining metal 52A filling the gap, thereby forming the fillet 52 in which the joining metal 52A is raised from the gap.

According to the brazing, the

metal surface films

51C and 58C (see FIG. 19) are removed by flux (not shown) before the gap between the main body portion 51B and the end pipe 58 is filled with the bonding metal 52A. The main body 51B and the end pipe 58 are joined and conducted without the

metal surface films

51C and 58C.

When the brazing is completed, as shown in FIG. 19, the

metal surface films

52B and 51C are formed on the fillet 52 and the portion of the main body 51B and the end pipe 58 where the joining metal 52A is not spread over time. , 58C are formed.

<Sixth Embodiment>
Then, the structure of the discharge device 60 concerning 6th Embodiment is demonstrated using FIG. 20 and FIG. The discharge device 60 according to the sixth embodiment is a modified embodiment of the discharge device 10 according to the first embodiment described above. Therefore, components common to the components described in the first embodiment are denoted by reference numerals in the description of the first embodiment in which the tenth digit is replaced with “6”. Therefore, detailed description thereof is omitted. Of the operational effects of the respective configurations of the discharge device 60, those that are common to the operational effects of the respective configurations of the discharge device 10 will not be described in detail.

As shown in FIG. 20, the discharge device 60 according to the sixth embodiment is attached to the end pipe 68 on the outer surface 68 A of the end pipe 68. It is the discharge device which realizes the discharge.

As shown in FIGS. 20 and 21, the discharge device 60 includes an end pipe 68 instead of the band 12 (see FIG. 1) attached in the state surrounding the muffler 17 in the discharge device 10 according to the first embodiment. A metal cable 62 that can be wound around and attached to the outer surface 68A is provided.

According to the above configuration, the discharge device 60 can be attached to the end pipe 68 by a simple operation of winding the cable 62 of the discharge device 60 around the outer surface 68A of the end pipe 68. As shown in FIG. 20, the cable 62 wound around the end pipe 68 is prevented from being detached from the end pipe 68 by connecting one end 62 A and the other end 62 B to each other. .

Further, as shown in FIGS. 20 and 21, the discharge device 60 is a metal air-core single-turn coil instead of the discharge portion 11 (see FIG. 2) formed by the wire mesh 11 B cut in the discharge device 10. The discharge part 61 formed by 61B is provided. Here, as shown in FIG. 21, the air-core single-winding coil 61 B of the discharge unit 61 is divided by cutting every predetermined number of turns (for example, 11 turns), and each divided part is a cable 62. It is attached by insertion. For this reason, the air core single-wound coil 61B is electrically connected to the end pipe 68 in a state where the cable 62 is mounted on the outer surface 68A of the end pipe 68, and the outer surface 68A of the end pipe 68 is passed through the outer core 68A. It is arrange | positioned so that it may surround.

Moreover, each part divided | segmented in the air-core single winding coil 61B is provided with two point-shaped protrusion parts 21A. Each protruding portion 21A is formed by extending both ends of each portion divided in the air-core single coil 61B so as to protrude from the cable 62. Each protruding portion 21A may be provided with one at each portion by unrolling and extending only one end of each portion divided in the air-core single coil 61B (not shown). .

According to each configuration described above, the air core single-wound coil 61 B of the discharge unit 61 that is inserted through and attached to the cable 62 is divided into a plurality of portions, and each portion is displaced according to the bending of the cable 62. Can do. Thereby, it is possible to prevent the winding of the cable 62 around the end pipe 68 (see FIG. 20) from being hindered by the air-core single-turn coil 61B of the discharge unit 61.

Further, by providing projecting portions 61A on each of a large number of portions divided in the air core single-turn coil 61B of the discharge part 61 (see FIG. 21), a large number of protrusions from the air core single-turn coil 61B of the discharge part 61. The portion 61A can be protruded.

By the way, each part divided in the air-core single-wound coil 61B can be rotated in the circumferential direction of the cable 62 with respect to the cable 62 inserted into each part. Further, as shown in FIG. 21, the two protruding portions 61A protruding from the respective portions of the air-core single-wound coil 61B are disposed so as to protrude on the same side.

According to each of the above-described configurations, the protruding portion 61A protruding from each portion divided in the air-core single-wound coil 61B can be rotated in the circumferential direction of the cable 62 and aligned so as to face the same side. As a result, when the cable 62 is wound around the end pipe 68, the tip ends of the protruding portions 61A are aligned so as to face away from the end pipe 68, and the end pipes 68 are damaged by the protruding portions 61A. It is possible to provide the discharge device 60 that can avoid this.

<Seventh embodiment>
Then, the structure of the discharge device 70 concerning 7th Embodiment is demonstrated using FIG. A discharge device 70 according to the seventh embodiment is a modified embodiment of the discharge device 10 according to the first embodiment described above. Therefore, components common to the components described in the first embodiment are denoted by reference numerals in the description of the first embodiment, in which the tens digit is replaced with “7”. Therefore, detailed description thereof is omitted. Of the operational effects of the respective configurations of the discharge device 70, those that are common to the operational effects of the respective configurations of the discharge device 10 will not be described in detail.

The discharge device 70 according to the seventh embodiment is electrically connected to the muffler 77 on the outer surface 77A of the muffler 77 which is one of the components constituting the intake and exhaust system of the automobile 79. It is a discharge device that realizes discharge from the air to the outside air 73. Here, on the outer surface 77A of the muffler 77, a bolt hole 77B into which a bolt 74 which is one of the components constituting the muffler 77 is screwed is formed.

As shown in FIG. 22, the discharge device 70 has a discharge portion 71 composed of a protruding portion 71A made of metal and a main body portion 71B. The main body portion 71B is a metal washer that is attached to the bolt 74 (specifically, the shaft portion of the bolt 74) by inserting the bolt 74 when the bolt 74 is screwed into the bolt hole 77B. That is, the bolt 74 to which the main body portion 71B of the discharge device 70 is attached is regarded as a “part to be attached” in the above description of one feature of the present invention.

Further, the protruding portion 71A is a portion protruding into a barbed shape (ie, a pointed shape) from a plurality of locations set at equal intervals along the outer periphery of the main body portion 71B. Note that 24 projecting portions 71A project from the main body portion 71B of the discharge device 70 shown in FIG. 22, but the number of projecting portions 71A can be changed as appropriate.

According to each of the above configurations, the main body portion 71B is disposed so as to surround the outer surface 74A of the bolt 74, and is attached in a conductive state with respect to the bolt 74. In addition, each protruding portion 71A is arranged on the outer peripheral portion of the main body portion 71B along the direction in which the main body portion 71B surrounds the outer surface 74A of the bolt 74, thereby realizing discharge from the bolt 74 of the muffler 77 to the outside air 73.

According to each of the above-described structures, the bolt 74 that is one of the parts of the muffler 77 is the above-described attached part, so that the member (for example, FIG. The band 12) in the discharge device 10 shown in Fig. 1 can be eliminated. As a result, there is provided a discharge device 70 that can be used by being attached to the muffler 77 even if a space cannot be set around the muffler 77 in the muffler 77 of the automobile 79. Can do.

As mentioned above, the form for implementing this invention was demonstrated by the 1st thru | or 7th embodiment mentioned above. However, it will be apparent to those skilled in the art that various substitutions, modifications, and changes can be made without departing from the scope of the invention. That is, the mode for carrying out the present invention may include all substitutions, modifications, and changes that do not depart from the spirit and purpose of the claims appended hereto. For example, the following various modes can be implemented as modes for carrying out the present invention.

(1) In each of the first and second embodiments described above, the discharge part is not limited to one formed by a cut plain weave wire mesh. That is, the discharge part is, for example, a wire mesh woven in an arbitrary weaving method such as a twill weave or a flat tatami weave, a wire mesh knitted in an arbitrary knitting method such as a diamond wire mesh or a turtle shell wire mesh, or an expanded metal or a welded wire mesh. It is possible to cut and form any type of wire mesh such as a wire mesh that is integrally formed. In addition, the discharge part is formed so as to function as a wire mesh by cutting an arbitrary metal wool such as steel wool, and the end part of the metal fiber cut into the metal wool and formed into a pointed shape is used as a protruding part. It is also possible to adopt a configuration that functions.

(2) In the second embodiment described above, the method of integrally joining the main body portion to the component to be attached is not limited to the indirect spot welding described above. In other words, when joining the main body part integrally to the mounted part, an arbitrary method of joining two members with a joining metal, such as any welding including arc welding, brazing, or pressure welding, is adopted. Can do. Here, the joining metal that joins the main body portion and the part to be attached can be made of any metal including a band joined to the main body portion and an appropriately added solution.

(3) In the second embodiment described above, the method of joining the band and the main body portion to each other is not limited to the direct spot welding described above. That is, when joining the band and the main body part to each other, it is possible to employ any technique for joining two members with a joining metal, such as any welding including arc welding, brazing, or pressure welding. Moreover, the joining metal which joins a band and a main-body part mutually can consist of the arbitrary metals containing the said band and the solution material added suitably.

(4) In each of the third to fifth embodiments described above, each notch that is put into the main body portion of the discharge portion is not limited to that that is put into the edge of the extension plate that wraps around the end of the end pipe in the main body portion. . That is, each of the cuts is an arbitrary position in the main body portion, such as an edge located on the root side of the end pipe in the main body portion, or a cylindrical side surface portion that wraps the outer surface of the end pipe in the main body portion. Can be arranged. Further, the specific length and width of each of the cuts, the arrangement angle, and the arrangement interval can be appropriately changed.

(5) In each of the third to fifth embodiments described above, each notch to be inserted into the main body portion of the discharge part is formed so that one or both of the burr and the fracture surface are formed, and this burr or fracture surface The structure which makes the part which becomes a pointed shape function as a protrusion part of a discharge part can be employ | adopted.

(6) In the above-described fourth embodiment, the technique for integrally joining the main body portion to the end pipe via the clamping bolt can be changed from the above-described pressure welding to indirect spot welding. In this case, since the clamping bolt is joined only to either the end pipe or the discharge portion by one indirect spot welding, when the end pipe and the discharge portion are joined together via the clamping bolt, Indirect spot welding must be performed at least twice. Further, when the main body portion is integrally joined to the end pipe via the clamping bolt, the two members are made of a joining metal such as any welding or brazing including tungsten-inert gas welding and MIG welding. Any method for joining the layers can be employed. Moreover, the joining metal which joins a main-body part and an end pipe can melt | dissolve the metal solubilizing material added suitably. In this case, if the clamping bolt is arranged at the end of the end pipe on the main body portion, the gap between the clamping bolt and the main body portion and between the clamping bolt and the end pipe is set. It becomes easy to spread the bonding metal in which the solubilizing material is melted.

(7) In the above-described fifth embodiment, the method of integrally joining the main body portion to the end pipe is not limited to the above-described brazing. That is, when joining the main body part integrally to the end pipe, an arbitrary method of joining two members by a joining metal, such as any welding or pressure welding including fillet welding and spot welding, is adopted. be able to.

(8) In the above-described sixth embodiment, the single-core coil that is the core of the discharge part is replaced with a metal pipe with a plurality of protruding portions formed in a pointed shape, and the metal pipe is replaced with a plurality of metal pipes. It is possible to adopt a configuration in which the metal beads are divided and the cable of the attachment portion is inserted into each metal bead. Also, the wire functioning as a discharge part is divided into a large number of pieces, and the divided wires are tied at any place on the cable of the attachment part by any knotting method including a knotting method in which both ends of each wire are twisted together. Thus, it is possible to adopt a configuration in which each wire is attached to the cable in a state where the cable is inserted.

(9) In 7th Embodiment mentioned above, the structure which joined the main-body part integrally with the bolt of the muffler is employable. Here, when the main body portion is integrally joined to the bolt, any method of joining two members with a joining metal, such as welding, brazing, or pressure welding, can be employed.

(10) The attached part to which the discharge device according to the embodiment of the present invention can be attached is not limited to an automobile muffler or an end pipe protruding from the muffler or a bolt that is one of the parts of the muffler. That is, the mounted part to which the discharge device is attached in the automobile is an arbitrary intake / exhaust system of the internal combustion engine such as an intake pipe of the internal combustion engine in the automobile or an air element on the intake side connected to the intake pipe. Can be a part. Here, the specific shape and size of the discharge device of the present invention can be changed as appropriate in accordance with the parts to be attached in the intake / exhaust system of the internal combustion engine.

(11) The discharge device according to the embodiment of the present invention is not applicable only to Toppo (registered trademark), which is a light vehicle manufactured by Mitsubishi Motors Corporation, selected in the above-described measurement experiment. That is, the discharge device according to the embodiment of the present invention is an arbitrary vehicle having an internal combustion engine having an intake and exhaust system, including an arbitrary four-wheeled vehicle, a multi-wheeled vehicle having five or more wheels, a three-wheeled vehicle, and a motorcycle. Is applicable. Moreover, the discharge device of the present invention is employed in any ship including a pleasure boat and a tanker and any power device including a brush cutter and an engine generator by appropriately changing the specific shape and size thereof. It can also be attached to components constituting the intake and exhaust system of the internal combustion engine.

Claims

In the discharge device that realizes discharge from the mounted parts to the outside air,
A part constituting the intake / exhaust system of the internal combustion engine as a mounted part, a main body part arranged so as to surround the outer surface of the mounted part and electrically connected to the mounted part;
Protruding portions that protrude from a plurality of locations on the main body portion and realize discharge from the mounted parts to the outside air,
With
Each protruding portion is formed in a pointed shape, and is arranged along the direction in which the main body portion surrounds the outer surface of the mounted part.
Discharge device.
The discharge device according to claim 1,
The main body portion is formed in a long band shape by a cut wire mesh, and the edge portion cut in the wire mesh is arranged in a state of surrounding the outer surface of the attached part,
Each protruding portion is formed by a metal wire of a wire mesh protruding from an edge cut in the wire mesh.
Discharge device.
The discharge device according to claim 2,
It is formed in a long band shape corresponding to the main body part, and includes a band that is wound around and attached to a part to be attached,
The main body portion is covered by the band by being positioned along the surface to be attached side of the band,
The wire mesh has a metal wire that is bent from the direction along the surface to be attached side in the wire mesh toward the side attached to the band, and has a flexibility to be deformed according to the deformation of the band. And
The band is attached to the attached part by an operation of winding and tightening the band around the attached part, thereby pressing the wire mesh of the main body portion against the outer surface of the attached part.
Discharge device.
A discharge device according to claim 2 or claim 3, wherein
The band and the main body part are joined to each other by a joining metal filled in a gap between the main body part and the band.
Discharge device.
The discharge device according to claim 1,
An end pipe, which is a part located in an end portion of the intake and exhaust system of the internal combustion engine, is configured to be attached on the outer surface of the attached part,
The main body portion is disposed so as to surround the outer surface of the component to be attached,
Each protruding portion is a tip-shaped portion formed by making a plurality of cuts in the body portion.
Discharge device.
The discharge device according to claim 5, wherein
In the main body portion, a plurality of corner portions formed so as to sandwich each of the cuts by the plurality of cuts are pointed shapes, which are the protruding portions.
Discharge device.
The discharge device according to claim 5 or 6, wherein
Each of the cuts is formed so as to have one or both of a burr and a fracture surface, and a portion having a pointed shape in the burr or fracture surface functions as the protruding portion.
Discharge device.
The discharge device according to claim 1,
The main body portion is a washer that is mounted on the outer surface of the mounted component by mounting the bolt, which is a component constituting the intake / exhaust system of the internal combustion engine, as a mounted component, by being inserted into the bolt by insertion of the bolt. ,
Each protruding portion is protruded from a plurality of locations set along the outer periphery of the washer,
Discharge device.
A discharge device according to any one of claims 1 to 8,
The main body portion is integrally bonded to the mounted component by a bonding metal filled in a gap between the main body portion and the mounted component.
Discharge device.
The discharge device according to claim 9, wherein
Each of the main body portion and the attached component is made of metal,
The joining metal filled in the gap between the main body part and the mounted part is made to join the main body part and the mounted part without the metal surface film covering each surface of the mounted part and the main body part. Conducting,
Discharge device.
The discharge device according to claim 1,
A cable that can be wound around and attached to the outer surface of the attached part,
The main body portion is divided into a plurality of portions each having a protruding portion, and a cable is inserted through each portion.
Discharge device.
The discharge device according to claim 11,
The main body part is a wire divided into a plurality of wires, and each wire is connected at a plurality of locations on the cable, so that the cable is attached in a state where the cable is inserted.
Discharge device.
A discharge device according to claim 11 or claim 12,
Each part divided in the main body part can be rotated in the circumferential direction of the cable with respect to the cable inserted through each part,
Furthermore, each portion divided in the main body portion is arranged so that a plurality of the protruding portions protrude on the same side.
Discharge device.