JP2021014150A - Heat exhaust port structure and manufacturing method of heat exhaust duct with lid body - Google Patents

Abstract

To enable foreign objects in a heat exhaust duct to be taken easily from a heat exhaust port in a structure in which the heat exhaust port of the heat exhaust duct is covered with a mesh.SOLUTION: A heat exhaust port structure 100 is formed by attaching a mesh 21 for restricting entry of foreign objects to a heat exhaust port 10K at a lower end part of a resin heat exhaust duct 10 which guides hot air around a heat source 91 in a vehicle 90 to the outside of the vehicle. The heat exhaust port structure 100 includes a lid body 20 which is integrally molded with the heat exhaust duct 10 through a hinge 14, rotates between a closed position where the lid body 20 covers the heat exhaust port 10K and an open position where the lid body 20 opens the heat exhaust port 10K, and is locked at the closed position. The mesh 21 is integrally molded with the lid body 20.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to a heat exhaust port structure in which a mesh is attached to a heat exhaust port of a heat exhaust duct that exhausts hot air inside the vehicle to the outside of the vehicle, and a method for manufacturing the heat exhaust duct.

Conventionally, a structure has been known in which air inside a vehicle is discharged to the outside of a vehicle through a duct (see, for example, Patent Document 1). As such a structure, there is a structure in which hot air around a heat source such as an engine control unit in the vehicle is guided to the lower surface of the vehicle by an exhaust heat duct. For example, organisms may invade the heat exhaust duct when parked, or pebbles may invade when traveling. Therefore, a mesh that regulates the invasion of foreign substances such as organisms and pebbles is provided at the lower end of the heat exhaust duct. It is adhesively fixed so that it covers the heat exhaust port.

Japanese Unexamined Patent Publication No. 10-151939 (paragraphs [0004], [0005], and FIG. 5).

By the way, foreign matter such as detached parts can enter the heat exhaust duct from the inside of the vehicle. In this case, in the conventional structure described above, since the mesh is adhesively fixed to the heat exhaust duct, it is difficult to take out the foreign matter from the heat exhaust port.

The invention of claim 1 made to solve the above problems regulates the intrusion of foreign matter into the heat exhaust port at the end of the resin heat exhaust duct that guides the hot air around the heat source in the vehicle to the outside of the vehicle. It is a heat exhaust port structure formed by attaching a mesh, and is integrally molded with the heat exhaust duct via a hinge, and rotates between a closed position that covers the heat exhaust port and an open position that opens the heat exhaust port. It is a heat exhaust port structure that includes a lid that moves and is locked in the closed position, and the mesh is integrally molded with the lid.

The invention of claim 2 includes an end flange that projects outward from the end portion of the heat exhaust duct, and a lid plate portion that is provided on the lid and has substantially the same outer shape as the end flange. A part of the outer periphery of the flange and the lid plate portion is connected by the hinge, the end flange and the lid plate portion overlap at the closed position, and the exhaust at the closed position of the lid plate portion. The heat exhaust port structure according to claim 1, wherein the mesh is formed by having a plurality of through holes in a portion overlapping the hot port.

In the invention of claim 3, a locking hole is formed in one of the portions of the end flange and the lid plate portion that overlap each other, and the other is inserted into the locking hole to open the locking hole. The heat exhaust port structure according to claim 2, wherein a locking piece that locks on the edge or the inner surface is formed.

The invention of claim 4 has an annular rib protruding from the outer edge of the surface of the lid plate portion that overlaps the end flange and the surface opposite to the end flange, and the locking hole is the annular portion of the lid plate portion. Claim that the locking piece is arranged inside the rib, penetrates the locking hole, locks on the opening edge of the locking hole, and faces the annular rib in a state of penetrating the locking hole. The heat exhaust port structure according to 3.

The invention of claim 5 is the heat exhaust port structure according to claim 4, wherein the locking piece is arranged so as to bend in a direction away from the annular rib and release the locking.

The invention of claim 6 is a manufacture of a heat exhaust duct with a lid for manufacturing a heat exhaust duct with a lid having the heat exhaust port structure according to any one of claims 2 to 5 by injection molding of resin. In the method, an injection molding die having a pair of main dies for molding the outer surface of the heat exhaust duct with a lid is used, and the lid plate portion is placed in a posture substantially orthogonal to the end flange. This is a method for manufacturing a heat exhaust duct with a lid, which is formed in a state substantially orthogonal to the mold opening direction of the pair of main molds.

In the heat exhaust port structure of claim 1, a mesh that regulates the intrusion of foreign matter is attached to the heat exhaust port at the end of the heat exhaust duct. Specifically, the heat exhaust port structure is provided with a lid integrally formed with the heat exhaust duct via a hinge, and the lid has a mesh and is locked at a closed position covering the heat exhaust port. To. As a result, foreign matter is restricted from entering the heat exhaust duct from the heat exhaust port. Here, the lid can rotate between the closed position and the open position where the heat exhaust port is opened. Therefore, by arranging the lid in the open position, when foreign matter enters the heat exhaust duct from the inside of the vehicle, the foreign matter can be easily taken out from the heat exhaust port. Further, since the mesh is integrally molded with the lid and the exhaust duct, the number of parts can be reduced as compared with the conventional structure in which the mesh is separate from the heat exhaust duct.

In the invention of claim 2, since the lid plate portion and the end flange overlap when the lid is in the closed position, the overlapping portion between the lid and the opening edge of the heat exhaust port can be widened, and the lid and the exhaust can be exhausted. It becomes difficult for foreign matter to enter the heat exhaust duct from between the hot port opening edge.

In the invention of claim 3, the lid can be easily held in the closed position by locking the locking hole and the locking piece. Further, according to the present invention, it becomes easier to hold the lid body in the closed position as compared with the case where a holder for holding the lid body in the closed position is separately provided.

In the invention of claim 4, since the locking hole and the locking piece locked are surrounded by the annular rib, the locking piece can be protected by the annular rib, and the locking hole and the locking piece are unlocked. It becomes possible to suppress this.

In the invention of claim 5, the locking hole surrounded by the annular rib and the locking piece are released by bending the locking piece in the direction away from the annular rib. In the present invention, by protecting the locking piece by being surrounded by the annular rib, for example, it is possible to prevent pebbles and the like from colliding with the locking piece from the outside of the annular rib while the vehicle is traveling. It is suppressed that the locking piece is bent in the direction of releasing the stop. As a result, it becomes difficult to release the locking between the locking hole and the locking piece, and the locking of the lid to the closed position can be stabilized.

In the invention of claim 6, since the lid plate portion is formed in a posture substantially orthogonal to the end flange, the lid body is closed as compared with the case where the lid plate portion is formed in a posture opened 180 degrees from the end flange, for example. The work of positioning becomes easy. Further, since the lid plate portion is formed in a state substantially orthogonal to the mold opening direction of the pair of main molds, it is possible to facilitate the molding of the lid plate portion having the through hole.

Side view of the heat exhaust port structure according to the embodiment of the present disclosure Perspective view of heat exhaust port structure and heat exhaust duct Side sectional view of the heat exhaust port structure when the lid is in the closed position Enlarged perspective view of the heat exhaust port structure when the lid is in the open position (A) Side sectional view of the lid rotated from the open position to the closed position, (B) Side sectional view of the lid rotated from the open position to the closed position and in sliding contact with the locking piece. (A) Perspective view around the locking piece in the heat exhaust duct, (B) Enlarged perspective view of the locking holes locked to each other and the periphery of the locking piece in the heat exhaust port structure. Side sectional view of an injection molding die for molding a heat exhaust duct with a lid Side sectional view of an injection molding die in which resin is injected into the cavity Side sectional view of the heat exhaust duct and lid when removing the core Side sectional view of the heat exhaust duct and lid when the upper and lower molds are opened.

As shown in FIG. 1, the vehicle 90 provided with the heat exhaust port structure 100 of the present embodiment has, for example, a heat source 91 such as an engine control unit inside, and the heat source 91 is cooled by using air in the vehicle interior. To do. The hot air around the heat source 91 (that is, the air used for cooling) is guided to the lower surface of the vehicle 90 by the exhaust heat duct 10, and is discharged to the outside of the vehicle from the heat exhaust port 10K at the lower end of the heat exhaust duct 10. In the present embodiment, the heat exhaust duct 10 constitutes a lower portion of the discharge passage 92 for discharging hot air around the heat source 91, including the heat exhaust port 10K, and the upper portion of the discharge passage 92 is It is composed of another duct.

As shown in FIGS. 2 and 3, the heat exhaust port structure 100 of the present embodiment restricts the entry of foreign matter into the heat exhaust duct 10 into the heat exhaust port 10K (see FIG. 3) of the heat exhaust duct 10. The mesh 21 is attached. Specifically, the heat exhaust port structure 100 is provided with a lid 20 that covers the heat exhaust port 10K, and the lid 20 is provided with a mesh 21.

The heat exhaust duct 10 projects from the lower end of the heat exhaust duct 10 to the outside in the radial direction of the heat exhaust port 10K, for example, a substantially annular lower end flange 10F (corresponding to the “end flange” described in the claims). have. In the present embodiment, the heat exhaust duct 10 has a bent portion 12 at an intermediate position, and has an abbreviated shape.

The lid body 20 has a lid plate portion 20H and an annular rib 22 protruding from the lid plate portion 20H. Specifically, the lid plate portion 20H has a substantially disk shape, for example, and the above-mentioned mesh 21 is provided at the central portion of the lid plate portion 20H. Further, the annular rib 22 projects from the outer edge portion of the front side surface 20F on the side of the lid plate portion 20H opposite to the surface overlapped with the opening edge of the heat exhaust port 10K over the entire circumferential direction.

The mesh 21 has a plurality of through holes 21A penetrating the lid plate portion 20H in the thickness direction. In the present embodiment, the plurality of through holes 21A of the mesh 21 have, for example, an undercut shape that expands toward the front side surface 20F side of the lid plate portion 20H. The cross-sectional shape of the through hole 21A may be, for example, a polygonal cross-sectional shape such as a quadrangle or a triangle, or a circular shape.

As shown in FIGS. 3 and 4, the lid 20 is connected to the heat exhaust duct 10 via a hinge 14 (for example, an integral hinge). Specifically, in the present embodiment, a part of the outer periphery of the lid plate portion 20H of the lid body 20 and the lower end flange 10F of the heat exhaust duct 10 is connected by the hinge 14. Further, in the present embodiment, the lid 20 is integrally molded with resin on the heat exhaust duct 10 via the hinge 14, and the mesh 21 is also integrally molded with resin on the lid 20. In the circumferential direction of the heat exhaust duct 10, the hinge 14 is arranged on the same side as the side where the heat exhaust duct 10 is bent.

In the present embodiment, the lid 20 is connected to the heat exhaust duct 10 via the hinge 14 to open the closed position (see FIGS. 2 and 3) that covers the heat exhaust port 10K and the heat exhaust port 10K. It can rotate between the open position (see FIG. 4).

As shown in FIG. 5A, when the lid 20 is arranged in the closed position, the mesh 21 overlaps with the heat exhaust port 10K. At this time, the lid plate portion 20H and the lower end flange 10F overlap. In the present embodiment, the lid plate portion 20H and the lower end flange 10F have substantially the same outer shape. In the heat exhaust port structure 10, when the lid body 20 is in the closed position, the lid plate portion 20H and the lower end flange 10F overlap each other, so that the overlapping portion between the lid body 20 and the opening edge of the heat exhaust port 10K can be widened. , It becomes difficult for foreign matter to enter the heat exhaust duct 10 from between the lid 20 and the opening edge of the heat exhaust port 10K.

Here, the heat exhaust port structure 10 of the present embodiment is provided with a locking means for locking the lid 20 at the closed position. Specifically, the locking means includes a locking hole 31 and a locking piece 32 that are provided at overlapping portions of the lid plate portion 20H and the lower end flange 10F and lock each other.

As shown in FIGS. 4 and 6B, the locking hole 31 is formed through the lid plate portion 20H. Specifically, the locking hole 31 is arranged at a position inside the annular rib 22 and outside the mesh 21, and is opposite to the hinge 14 in the circumferential direction of the lid plate portion 20H (specifically, substantially opposite). (At the position of).

As shown in FIGS. 4 and 6A, the locking piece 32 is arranged on the opposite side of the hinge 14 in the circumferential direction of the lower end flange 10F of the heat exhaust duct 10 (specifically, at a position substantially opposite to that of the hinge 14). Has been done. The locking piece 32 has a protruding piece portion 33 that stands up from the lower end flange 10F, and a claw portion 34 that protrudes from the protruding piece portion 33 on a side away from the center of the heat exhaust port 10K. The projecting piece portion 33 is arranged along the opening edge of the heat exhaust port 10K, and is elastically deformable so as to bend in the radial direction of the heat exhaust port 10K. The surface of the claw portion 34 facing the protruding tip side of the locking piece 32 is an inclined guide surface 34M that gradually reduces the amount of protrusion of the claw portion 34 toward the protruding tip.

As shown in FIG. 5A, when the lid 20 rotates from the open position to the closed position, the locking piece 32 is inserted into the locking hole 31. At this time, as shown in FIG. 5B, the inclined guide surface 34M of the locking piece 32 is slidably guided to the inner surface of the locking hole 31, and the projecting piece portion 33 is on the center side of the heat exhaust port 10K. It elastically deforms to bend. Then, when the claw portion 34 of the locking piece 32 gets over the inner surface of the locking hole 31, the protruding piece portion 33 of the locking piece 32 elastically restores to the side (diameter outside) away from the center of the heat exhaust port 10K. The claw portion 34 is locked to the opening edge of the locking hole 31 (specifically, the portion of the opening edge on the side away from the center of the heat exhaust port 10K) (see FIG. 5 (A)). As a result, the lid 20 is locked in the closed position.

When the lid 20 is in the closed position and the locking piece 32 is locked in the locking hole 31, the locking piece 32 penetrates the locking hole 31 and the protruding tip of the locking piece 32 is the lid plate portion 20H. It protrudes from the front side surface 20F of. At this time, the locking piece 32 is surrounded by the annular rib 22 and faces the annular rib 22 with the claw portion 34 side facing.

To release the lock between the locking hole 31 and the locking piece 32, elastically deform the locking piece 32 so as to bend to the same side as when locking (that is, to the center side of the heat exhaust port 10K). Just do it. As a result, the locking is released, the lid 20 is released from being held in the closed position, and the lid 20 is arranged in the open state (see FIG. 4).

Here, as described above, the locking piece 32 bends the locking with the locking hole 31 toward the center side of the heat exhaust port 10K (in the present embodiment, toward the side away from the annular rib 22). To release. That is, in order to release this locking, it is necessary to apply a force to the locking piece 32 from the outside of the annular rib 22 (from the radial outside of the heat exhaust port 10K) toward the inside. On the other hand, in the present embodiment, the locking piece 32 is surrounded and protected by the annular rib 22, so that, for example, pebbles or the like collide with the locking piece 32 from the outside of the annular rib 22 while the vehicle 90 is traveling. Since this is suppressed, bending of the locking piece 32 in the direction of releasing the locking is suppressed. As a result, it becomes difficult to release the locking between the locking hole and the locking piece, and the locking of the lid 20 to the closed position can be stabilized.

The heat exhaust duct 10H with a lid, which integrally includes the heat exhaust duct 10 and the lid 20 of the present embodiment, is manufactured, for example, as follows. FIG. 7 shows an injection molding die 50 for injection molding the heat exhaust duct 10H with a lid. The injection molding die 50 is laterally opposed to the upper die 51 and the lower die 52 (corresponding to the "pair of main dies" described in the claims) which are opened and closed close to each other and separated from each other. It has a pair of cores 53, 54, which slide along. The upper mold 51 and the lower mold 52 have molding grooves 51U and 52U extending laterally and facing each other on each molding surface. The cores 53 and 54 are inserted into the molding grooves 51U and 52U and abutted against each other when the injection molding die 50 is in the mold closed state (see FIG. 7). When the injection molding die 50 is in the mold closed state, a cavity 55 is formed between the upper mold 51 and the lower mold 52 (specifically, the inner surfaces of the molding grooves 51U and 52U) and the cores 53 and 54. It is formed. The upper mold 51 and the lower mold 52 (specifically, the inner surfaces of the molding grooves 51U and 52U) form the outer surface of the heat exhaust duct 10 (heat exhaust duct 10H with a lid). The cores 53 and 54 form the inner surface of the heat exhaust duct 10.

The cavity 55 has a substantially tubular body molding portion 55A for molding the heat exhaust duct 10, and a substantially disk-shaped lid molding portion 55B extending from one end of the main body molding portion 55A to form the lid 20 and the hinge 14. And have. The middle portion of the main body forming portion 55A is bent in order to form the bent portion 12 of the heat exhaust duct 10, and this bent portion serves as a boundary between the cores 53 and 54. The lid molding portion 55B is provided between the lower mold 52 and the core 53, and a plurality of protrusions 55T project from the portion of the molding surface of the lower mold 52 facing the lid molding portion 55B. The plurality of protrusions 55T penetrate the lid molding portion 55B and are abutted against the core 53. In the present embodiment, the plurality of protrusions 55T have, for example, a tapered shape. Further, the shape of the plurality of protrusions 55T is not particularly limited, such as a prismatic shape and a columnar shape.

Here, in the injection molding die 50, the main body molding portion 55A and the lid molding portion 55B of the cavity 55 are arranged so that the lid plate portion 20H is molded in a posture substantially orthogonal to the lower end flange 10F. Further, the lid forming portion 55B of the cavity 55 is formed so that the lid plate portion 20H is formed in a state substantially orthogonal to the mold opening direction (that is, the vertical direction in the present embodiment) of the upper mold 51 and the lower mold 52. It is arranged (that is, the lid molding portion 55B is arranged substantially orthogonal to the mold opening direction).

Next, the molten resin is injected into the cavity 55 of the injection molding die 50 from a resin supply hole (not shown). Then, when the molten resin filled in the cavity 55 is solidified, the heat exhaust duct 10 and the lid 20 are integrally molded in the injection molding die 50 via the hinge 14, as shown in FIG. Specifically, the heat exhaust duct 10 is molded by the main body molding portion 55A of the injection molding mold 50, and the lid 20 and the hinge 14 are molded by the lid molding portion 55B. At this time, the lid plate portion 20H of the lid body 20 is formed in a posture substantially orthogonal to the lower end flange 10F (see the posture shown in FIG. 4 and the posture shown by the two-point chain line in FIG. 5A). Further, at this time, the mesh 21 is covered by forming a plurality of through holes 21A penetrating the lid 20 (specifically, the lid plate portion 20H) by the plurality of protrusions 55T of the lid molding portion 55B. It is integrally molded with the body 20.

Next, as shown in FIG. 9, the cores 53 and 54 slide apart from each other and are removed from between the upper die 51 and the lower die 52. Further, as shown in FIG. 10, the upper mold 51 is separated from the lower mold 52, and the injection molding die 50 is opened.

After that, the heat exhaust duct 10 and the lid 20 are removed from the injection molding die 50. As described above, the heat exhaust duct 10H with a lid (see FIG. 4) including the heat exhaust duct 10 and the lid 20 integrally is completed. The method for manufacturing the heat exhaust duct 10H with a lid has been described above.

In the heat exhaust port structure 100 of the present embodiment, a mesh 21 for restricting the intrusion of foreign matter is attached to the heat exhaust port 10K at the lower end of the heat exhaust duct 10. Specifically, the heat exhaust port structure 100 is provided with a lid body 20 integrally formed with the heat exhaust duct 10 via a hinge 14, and the lid body 20 has a mesh 21 and has a heat exhaust port 10K. Locked in a closed position to cover. As a result, foreign matter is restricted from entering the heat exhaust duct 10 from the heat exhaust port 10K.

Here, foreign matter such as detached parts can enter the heat exhaust duct 10 from the inside of the vehicle. In this case, in the conventional heat exhaust port structure in which the mesh is adhered and fixed to the heat exhaust port 10K, it is difficult to take out the foreign matter from the heat exhaust port 10K. On the other hand, in the heat exhaust port structure 100 of the present embodiment, the lid 20 can rotate between the closed position and the open position where the heat exhaust port 10K is opened. As a result, by releasing the lock of the lid 20 and arranging the lid 20 in the open position, when foreign matter enters the heat exhaust duct 10 from the inside of the vehicle 90, the foreign matter is removed from the heat exhaust port 10K. It can be easily taken out.

Further, in the present embodiment, since the mesh 21 is integrally molded with the lid 20 and the exhaust duct, the number of parts can be reduced as compared with the conventional structure in which the mesh 21 is separate from the exhaust heat duct 10. Be done. Further, since the lid 20 having the mesh 21 is integrated with the heat exhaust duct 10, the handleability at the time of opening and closing the lid 20 is improved as compared with the case where the lid 20 and the heat exhaust duct 10 are separate bodies. It will be improved and the number of parts will be reduced.

In the present embodiment, the lid 20 can be easily held in the closed position by locking the locking hole 31 and the locking piece 32. Further, according to the present embodiment, it becomes easier to hold the lid 20 in the closed position as compared with the case where a holder for holding the lid 20 in the closed position is separately provided.

In the present embodiment, since the locking piece 32 locked with the locking hole 31 is surrounded by the annular rib 22, the locking piece 32 can be protected by the annular rib 22. As a result, for example, it is possible to prevent pebbles and the like from colliding with the locking piece 32 when the vehicle 90 is traveling, and to prevent the locking hole 31 and the locking piece 32 from being unlocked.

In the method of manufacturing the heat exhaust duct 10H with a lid of the present embodiment, the lid plate portion 20H is formed in a posture substantially orthogonal to the lower end flange 10F, so that the lid plate portion 20H opens 180 degrees with respect to the lower end flange 10F, for example. The work of closing the lid 20 is easier than in the case of molding in a vertical posture. Further, since the lid plate portion 20H is molded in a state substantially orthogonal to the mold opening direction of the upper mold 51 and the lower mold 52, it is possible to facilitate the molding of the lid plate portion having a through hole.

[Other Embodiments]
(1) In the above embodiment, the locking hole 31 is provided in the lid plate portion 20H and the locking piece 32 is provided in the lower end flange 10F, but the opposite configuration may be used for locking. The hole 31 may be provided in the lower end flange 10F, and the locking piece 32 may be provided in the lid plate portion 20H.

(2) In the above embodiment, on the front side surface 20F of the lid plate portion 20H, the annular rib 22 protrudes from the outer edge portion of the lid plate portion 20H, but may protrude from the opening edge of the locking hole 31. In this case, for example, a recess for receiving the claw portion 34 of the locking piece 32 may be provided at least in the inner peripheral portion of the annular rib 22, and the claw portion 34 may be locked in the recess. Further, the annular rib 22 may be provided between the outer edge portion of the lid plate portion 20H and the opening edge of the locking hole 31, and in this case, the annular rib 22 is engaged with the annular rib 22 on the front side surface 20F of the lid plate portion 20H. A region where the claw portion 34 of the locking piece 32 can be locked may be provided between the stop holes 31.

(3) In the above embodiment, the locking piece 32 is locked to the opening edge of the locking hole 31, but the locking piece 32 may be locked to the inner surface of the locking hole 31. In this case, for example, a stepped surface for expanding the locking hole 31 toward the front side surface 20F may be provided on the inner surface of the locking hole 31, and the claw portion 34 of the locking piece 32 may be locked on the stepped surface.

(4) In the above embodiment, the outer shapes of the lid plate portion 20H and the lower end flange 10F have substantially the same shape, but may have different shapes. Further, the heat exhaust duct 10 may not be provided with the lower end flange 10F.

(5) In the above embodiment, the lid body 20 is a substantially disk-shaped member having the lid plate portion 20H, but for example, it may be a polygonal plate-shaped member, or from the heat exhaust port 10K. It may be a hemispherical member that bulges away.

(6) In the above embodiment, the heat exhaust duct 10 has a bent shape, but it may have a straight shape.

(7) In the above embodiment, the exhaust heat duct 10 (exhaust path 92) guides the hot air around the heat source 91 in the vehicle 90 to the lower surface of the vehicle 90. For example, the side surface of the vehicle 90. , The rear surface, or the upper surface may be guided.

10 Heat exhaust duct 10K Heat exhaust port 100 Heat exhaust port structure

Claims (6)

It has a heat exhaust port structure in which a mesh that regulates the intrusion of foreign matter is attached to the heat exhaust port at the end of the resin heat exhaust duct that guides the hot air around the heat source inside the vehicle to the outside of the vehicle.
A lid that is integrally molded with the heat exhaust duct via a hinge, rotates between a closed position that covers the heat exhaust port and an open position that opens the heat exhaust port, and is locked to the closed position. A heat exhaust port structure in which the mesh is integrally molded with the lid body. An end flange that projects outward from the end of the heat exhaust duct,
A lid plate portion provided on the lid body and having substantially the same outer shape as the end flange is provided.
A part of the outer periphery of the end flange and the lid plate portion is connected by the hinge, the end flange and the lid plate portion overlap at the closed position, and the lid plate portion is at the closed position. The heat exhaust port structure according to claim 1, wherein the mesh is formed by having a plurality of through holes in a portion overlapping the heat exhaust port. A locking hole is formed in one of the portions of the end flange and the lid plate portion that overlap each other, and the other is inserted into the locking hole and locked to the opening edge or inner surface of the locking hole. The heat exhaust port structure according to claim 2, wherein the locking piece is formed. The lid plate portion has an annular rib protruding from the outer edge portion of the surface opposite to the surface overlapping the end flange.
The locking hole is arranged inside the annular rib of the lid plate portion.
The heat exhaust port according to claim 3, wherein the locking piece penetrates the locking hole and is locked to the opening edge of the locking hole, and faces the annular rib in a state of penetrating the locking hole. Construction. The heat exhaust port structure according to claim 4, wherein the locking piece is arranged so as to bend in a direction away from the annular rib and release the locking. A method for manufacturing a heat exhaust duct with a lid, wherein the heat exhaust duct with a lid having the heat exhaust port structure according to any one of claims 2 to 5 is manufactured by injection molding of a resin.
Using an injection mold having a pair of main molds to mold the outer surface of the lidded heat exhaust duct,
A method for manufacturing a heat exhaust duct with a lid, which forms the lid plate portion in a posture substantially orthogonal to the end flange and in a state substantially orthogonal to the mold opening direction of the pair of main molds.