JP5053871B2 - Intake duct for vehicle - Google Patents

Description

  The present invention relates to a vehicle intake duct.

  As shown in FIGS. 10 and 11, in many automobiles, an engine EG is mounted in an engine room 12 defined in the front portion of the vehicle body 10. As is well known, it is indispensable for the engine EG to supply external air continuously and stably through an air cleaner AC installed in the engine room 12. Therefore, a vehicle intake duct D1 for introducing outside air connected to the air cleaner AC is disposed on the front side of the engine room 12 in the vehicle body 10, and air outside the vehicle is taken in via the vehicle intake duct D1. Guide to AC.

  The vehicle intake duct D1 has an air gap in an air gap S between an engine hood 14 that can open and close the engine room 12 and a radiator support 16 that is positioned on the front side of the engine room 12 and fixes the radiator RD. It is desirable to arrange so that the intake port 26 faces. However, as shown in FIGS. 11 and 13, it is often difficult for the gap S to ensure a large vertical dimension due to the vehicle body shape. Accordingly, the outer shape of the vehicle intake duct D1 is inevitably a wide flat shape with the height dimension kept low.

  That is, the vehicle air intake duct D1 is made of a synthetic resin formed by a molding technique such as injection molding or blow molding as shown in a partially broken view in FIG. 12, and the upper wall portion 22 and the lower wall portion 24 facing each other. A duct body 20 made of The vehicle intake duct D1 has a horizontally long air intake 26 at one end in the longitudinal direction of the bent duct body 20 and a substantially rectangular air outlet 28 at the other end in the longitudinal direction. is there. As shown in FIGS. 10 and 13, the duct body 20 has a front portion attached to the upper surface of the radiator support 16 by appropriate attachment means BL such as a pin or a bolt, and a rear portion thereof installed in the engine room 12. Connected to the air cleaner AC.

Here, the duct main body 20 of the above-described vehicle intake duct D1 is not so high in rigidity due to the thinning and the flat outer shape accompanying the weight reduction. Accordingly, even in a normal use state, the upper wall portion 22 and the lower wall portion are caused by the negative pressure in the duct body 20 when the engine EG is driven or the duct body 20 is softened due to the temperature rise in the engine room 12. Twenty-four concave deformations are likely to occur. In particular, when the front side portion of the duct body 20 in which the horizontally long air intake port 26 is formed is easily deformed, and the opening area of the air intake port 26 decreases due to the deformation of the upper wall portion 22 and the lower wall portion 24, the engine Air cannot be taken into EG enough. Therefore, as shown in FIGS. 12 and 13, the lower wall portion 24 is provided with a columnar support portion 30 protruding into the duct body 20, and the upper wall portion 22 is supported from the inside by the support portion 30. Therefore, measures are taken to solve the above-mentioned problems. A technique related to this is disclosed in Patent Document 1, for example.
JP 2004-308453 A

  By the way, the establishment of safety measures for pedestrian protection has been demanded in recent years, and when a pedestrian collides, the vehicle body is deformed appropriately by the impact, so-called `` walking '' "Injury alleviation body" has been developed. For this reason, the engine hood 14 has a structure that is easily deformed downward by an impact force when a pedestrian collides, thereby taking measures to reduce the degree of injury of the pedestrian by absorbing the impact due to the collision. Yes. Therefore, the vehicle intake duct D1 located directly under the engine hood 14 is required to be deformed by the duct body 20 itself as the engine hood 14 is deformed, so that the deformation of the engine hood 14 is not hindered.

  Therefore, the conventional vehicle air intake duct D1 is configured such that when the external force accompanying the deformation of the engine hood 14 is applied from above, the support portion 30 described above is bent or flexibly compressed and deformed, whereby the duct body 20 It was trying to realize the deformation of. However, in the case of the blow molded duct body 20, it is difficult to control the thickness of the support portion 30, and thus the strength of the support portion 30 is likely to vary. For example, when the support part 30 is formed thicker than specified, the support part 30 does not deform appropriately even when a predetermined external force is applied as shown in FIG. The problem which acts on this and inhibits the deformation | transformation of the duct main body 20 will generate | occur | produce. Further, in the case of the duct body 20 formed by bonding the upper wall portion 22 and the lower wall portion 24 formed by injection molding, an external force is applied even though the thickness of the support portion 30 can be controlled relatively easily. In this case, since the support portion 30 is bent or flexibly compressed and deformed in the same manner, the repulsive force gradually increases as the deformation of the support portion 30 increases, and the load still remains. Adjustment was difficult.

  An object of the present invention is to provide a vehicle intake duct that allows smooth deformation of the first wall when an external force of a predetermined magnitude or more is applied to the first wall.

In order to solve the above-mentioned problems and achieve the intended object, the invention according to claim 1 is a vehicle intake duct including a duct body having a first wall body and a second wall body facing each other.
A support portion provided in the duct body in the first wall body and projecting from the first wall body toward the second wall body;
An insertion portion that is open to a portion of the second wall that faces the support portion, and is set to a dimension that allows the support portion to be inserted;
A plate-like contact member attached to the outside of the second wall,
Said abutment member, said mounting portion is a mounting portion to the second wall, so as to be elastically deformable continuously provided by covering the insertion portion into the mounting portion, the second wall side of the first wall It has a abutment displacing portion to deform away from the duct body by the contact of the support portion intends accompanied by the deformation of the,
The contact member is configured to apply a return elasticity to the first wall body via the support portion in a state where the contact displacement portion is elastically deformed to allow deformation of the first wall body. The gist.

Therefore, according to the first aspect of the present invention, when an external force of a predetermined magnitude or more is applied to the first wall body of the duct body, the support portion provided on the first wall body is the second wall body. By deforming the contact member attached to the outside, smooth deformation of the first wall body is allowed. That is, the deformation of the first wall body in the duct main body is not caused by the bending or bending compression deformation of the support portion, but by the displacement of the contact displacement portion of the contact member due to the contact of the support portion. The The contact member gives a return elastic force to the first wall body via the support portion when the contact displacement portion is elastically deformed. Therefore, when the external force applied to the first wall body is released, the contact body returns to the original position. It is also possible to restore the shape. In addition, since the duct body and the abutting member are configured as separate members, the deformation load of the duct body can be easily set without being restricted by the material or thickness of the duct body.

In the invention according to claim 2, the attachment portion has an extending portion that extends in the same direction as the corresponding contact deformation portion on both sides of the contact deformation portion.
The contact member is characterized in that the extending portions are fixed to the second wall body .
Therefore, according to the invention according to claim 2, the attachment position of the contact member fixed to the second wall body and the contact position of the support portion with respect to the contact displacement portion are determined by the corresponding contact displacement portion and the attachment portion. Since it is located on the same side with respect to the connecting portion, when the support portion pushes the contact displacement portion downward, the force that the mounting portion pushes the second wall body from the outside is weakened, and the deformation of the second wall body Can be suppressed.
The gist of the invention described in claim 3 is that a sheet-like cushioning material is disposed at a portion of the contact displacement portion facing the duct body.
Therefore, according to the invention which concerns on Claim 3, generation | occurrence | production of the noise by the support part and a contact displacement part contacting directly can be prevented.
The gist of the invention described in claim 4 is that a seal member surrounding the insertion portion is disposed between the contact member and the second wall body.
Therefore, according to the fourth aspect of the present invention, the degree of contact between the second wall body and the contact member is increased, and when the contact member is not deformed, the insertion portion is covered with the contact displacement portion , and the insertion portion is interposed through the insertion portion. Thus, external air can be prevented from flowing into the duct body.

  According to the vehicle intake duct according to the present invention, when an external force having a predetermined magnitude or more is applied to the first wall body, the contact member attached to the second wall body is deformed to deform the first wall body. Smooth deformation is allowed.

  Next, a preferred embodiment of the vehicle air intake duct according to the present invention will be described and described below with reference to the accompanying drawings.

  The vehicle air intake duct D to which the present application is directed is similar to the conventional vehicle air intake duct D1 shown in FIGS. 10 to 14 between the radiator support 16 and the engine hood 14 that are the front body components of the engine room 12. It is installed with the air intake 46 of the duct body 40 facing the gap S between them. The embodiment exemplifies the vehicle intake duct D having the duct body 40 having the same shape as the duct body 20 of the conventional vehicle intake duct D1 shown in FIG. About a member, the same code | symbol is attached | subjected and description is abbreviate | omitted. A side of the vehicle intake duct D that faces the front side of the vehicle body 10 is a front side, and a side of the vehicle intake duct D that is connected to the air cleaner AC is a rear side. Further, the vehicle width direction of the vehicle body 10 viewed from the front side of the vehicle body 10 is the left-right direction of the vehicle intake duct D.

  As shown in FIGS. 1 and 2, the vehicle air intake duct D of the embodiment includes a duct body 40 having a bent cylindrical shape blow-molded from a synthetic resin material such as polyethylene (PE) or polypropylene (PP). ing. The duct body 40 includes an upper wall portion (first wall body) 42 and a lower wall portion (second wall body) 44 facing each other. When the duct body 40 is attached to the front side of the engine room 12, the upper wall portion 42 is engine-mounted. Opposite the hood 14. A horizontally long air intake 46 is formed at the front end which is one end in the longitudinal direction of the duct body 40, and an air outlet 48 is formed at the rear end which is the other end in the longitudinal direction. A cylindrical connecting portion 50 that fits into the air inlet of the air cleaner AC is provided on the outer periphery of the air outlet 48. Further, attachment piece portions 52, 52 extending from the outer surface of the duct main body 40 to the side are provided at the front end portion of the duct main body 40. The mounting pieces 52 and 52 are provided with locking holes through which bolts BL fastened to the upper surface of the radiator support 16 are inserted. The duct body 40 can also be formed by individually injection-molding the upper wall portion 42 and the lower wall portion 44 and joining the end portions of the upper wall portion 42 and the lower wall portion 44.

  As shown in FIGS. 1 to 3, the upper wall portion 42 has a columnar support portion 60 that protrudes from the upper wall portion 42 into the duct body 40 at a portion adjacent to the rear side of the air intake port 46. Is provided. An insertion portion 62 that opens to a size that allows the support portion 60 to be inserted is provided at a portion of the lower wall portion 44 that faces the support portion 60. A plate-like contact member 70 is attached to the outside of the lower wall portion 44 so as to face the insertion portion 62. Therefore, when the portion of the upper wall portion 42 where the support portion 60 is provided is pushed from above, the upper wall portion 42 is deformed so as to sink downward, so that the contact end portion of the support portion 60 60 </ b> A is configured to contact the contact member 70 via the insertion portion 62.

  The support portion 60 is integrally formed with the upper wall portion 42 when the upper wall portion 42 is formed, and has a substantially quadrangular pyramid shape with a thickness substantially the same as the thickness of the upper wall portion 42. As shown in FIG. 2, the protrusion length H of the support portion 60 into the duct body 40 is such that a slight gap is formed between the contact end portion 60A of the support portion 60 and the contact member 70. The support 60 and the contact member 70 are separated when the duct body 40 is not deformed. When the contact end portion 60A of the support portion 60 contacts the contact member 70 attached to the lower wall portion 44, the portion of the upper wall portion 42 provided with the support portion 60 is supported. Note that the protrusion length H of the support portion 60 may be a length at which the contact end portion 60 </ b> A of the support portion 60 contacts the contact member 70.

  As shown in FIG. 2, the formation position of the support portion 60 is set to be the rear side of the radiator support 16 when the front portion of the duct body 40 is fixed to the upper surface of the radiator support 16. Has been. The formation position of the support portion 60 is set in this way when an external force is applied to the upper wall portion 42 and the upper wall portion 42 is deformed toward the lower wall portion 44 as shown in FIG. This is because the support portion 60 is displaced along with the protrusion and protrudes outward (downward) from the duct body 40. Note that the protruding shape of the support portion 60 is not limited to the substantially quadrangular pyramid shape described above, and may be, for example, a cone or elliptical cone shape, a polygonal pyramid shape, a cylinder or a prism shape, or the flow of air. It may be a rib shape along the air flow direction so as to control.

  As shown in FIG. 1 and FIG. 3A, the insertion portion 62 that opens in the lower wall portion 44 allows insertion of the support portion 60 that is displaced along with the deformation toward the lower wall portion 44 side of the upper wall portion 42. To do. That is, as shown in FIG. 3B, the left and right opening width L1 of the insertion portion 62 is set to be larger than the left and right width W1 of the support portion 60, and the front and rear opening width L2 of the insertion portion 62 is It is set larger than the front-rear width W2. Further, as shown in FIG. 3B, the support portion 60 is located in the opening region of the insertion portion 62 as viewed from above, and the support portion 60 completely overlaps with the insertion portion 62 in the vertical direction. . Therefore, when an external force is applied to the upper wall portion 42 and the upper wall portion 42 is deformed downward on the lower wall portion 44 side, the support portion 60 is inserted into the insertion portion 62 without contacting the lower wall portion 44. obtain. That is, when an external force larger than the external force applied in a normal use state is applied from above to the upper wall portion 42, the support portion 60 smoothly passes through the insertion portion 62, so that the upper wall portion 42. Can be deformed to contact the lower wall portion 44. The insertion portion 62 is opened by an end mill, a hot blade cutter, or the like in a post-process after the duct body 40 is blow-molded. However, when the duct body 40 is injection-molded, the insertion portion 62 can be molded simultaneously with the molding of the upper wall portion 42.

  The contact member 70 is made of a metal made of spring steel or the like, and covers the attachment portion 72 for attaching the contact member 70 to the lower wall portion 44 and the insertion portion 62 as shown in FIGS. And a contact displacement portion 74 with which the support portion 60 abuts. The attachment portion 72 is connected to the front side portion of the contact displacement portion 74, and has a hook shape extending from the contact displacement portion 74 to the left and right sides and extending rearward, as shown in FIGS. As shown, screw insertion holes 76 and 76 that allow the attachment screw 80 to be inserted are formed in the extending portions 72A and 72A that extend rearward on both the left and right sides with the contact displacement portion 74 interposed therebetween. These screw insertion holes 76 and 76 are respectively aligned with screw fastening holes 54 and 54 formed on the left and right of the insertion portion 62 on the outer surface of the lower wall portion 44. Therefore, the contact member 70 is fixed to the lower wall portion 44 of the duct body 40 by screwing the mounting screws 80, 80 inserted into the screw insertion holes 76, 76 into the opposing screw fastening holes 54, 54.

  The contact displacement portion 74 is formed in a rectangular shape larger than the opening size of the insertion portion 62 described above, and as described above, the contact displacement portion 74 is connected to the attachment portion 72 at the front side portion, and at the left side portion and the right side portion. The mounting portion 72 is separated from the extending portions 72A and 72A. When the contact member 70 is attached to the lower wall portion 44 by the attachment portion 72, the contact displacement portion 74 covers the entire insertion portion 62 as shown in FIG. The wall portion 44 is in close contact with the peripheral portion of the insertion portion 62. That is, the contact member 70 is in close contact with the lower wall portion 44 when the support portion 60 is not in contact, and the contact displacement portion 74 covers the insertion portion 62, and external air is passed through the insertion portion 62 through the duct body 40. It is configured to prevent inflow.

  When a downward external force is applied to the upper wall portion 42 and the support portion 60 pushes the contact displacement portion 74 from the inside, as shown in FIG. 5, the attachment portion 72, the contact displacement portion 74, The deformed portion 78 located at the boundary portion of the wire is bent or flexibly deformed, and the contact displacement portion 74 is displaced to the outside of the duct body 40 in a rearwardly lowered state while being in contact with the support portion 60. Is acceptable. Then, the abutment displacement portion 74 is displaced to the outside of the duct body 40 to open the insertion portion 62, and the support portion 60 can be displaced to the outside of the duct body 40 via the insertion portion 62. The wall portion 42 is allowed to be deformed downward.

  The deformation load that deforms the contact member 70 to cause the displacement of the contact displacement portion 74 is the extension length of the deformation portion 78 (width dimension of the contact displacement portion 74) or the contact member 70 in the deformation portion 78. It is set by adjusting the wall thickness. Thus, in the embodiment, when the external force assumed in the normal use state described above is applied to the support portion 60 via the upper wall portion 42, the contact displacement portion 74 is set so as not to be displaced. . Accordingly, as shown in FIGS. 2 and 3A, the contact displacement portion 74 of the contact member 70 is in close contact with the lower wall portion 44 even when the support portion 60 contacts from the inside in a normal use state. The posture of the upper wall portion 42 is prevented from being deformed during normal use. On the other hand, when an external force larger than the external force applied in a normal use state is applied to the upper wall portion 42, as described above, the support portion 60 that is displaced downward as the upper wall portion 42 is deformed. Under the contact, the contact displacement portion 74 is displaced rearwardly, and the deformation of the upper wall portion 42 in the duct body 40 is allowed.

  In the contact member 70 of the embodiment, as shown in FIG. 3B, the positions of the screw insertion holes 76 and 76 formed in the left and right extending portions 72A and 72A in the mounting portion 72 are set as the contact displacement portion. It is on a straight line extending in the left-right direction through the contact position P1 with which the support portions 60 of the 74 abut (extending parallel to the front end portion of the duct body 40), and the contact position P1 and each screw insertion hole 76. , 76 are aligned in a straight line in the left-right direction. That is, the abutting position P1 where the support portion 60 of the abutting member 70 abuts and the mounting positions P2, P2 of the abutting member 70 with respect to the lower wall portion 44 by the mounting screws 80, 80 are the same as the deformation portion 78 It is provided on the rear side which is the side of the front side. As a result, when the support portion 60 pushes the contact displacement portion 74 downward in the normal use state, the attachment portion 72 located on the front side from the deformable portion 78 of the contact member 70 pushes up the lower wall portion 44. The lower wall portion 44 is deformed in the front portion of the duct body 40 and the opening area of the air intake port 46 can be prevented from being reduced. The attachment positions P2 and P2 need only be provided on the same side as the contact position P1 with respect to the deformed portion 78. The attachment positions P2 and P2 and the contact position P1 are not necessarily in a straight line in the left-right direction. They do not have to be aligned. For example, the extension portions 72A and 72A may be further extended rearward, and the attachment positions P2 and P2 may be provided on the rear side of the contact position P1.

  As shown in FIG. 2 and FIG. 3A, on the inner side of the contact displacement portion 74 of the contact member 70 facing the duct main body 40, a sheet-like cushioning sheet material 82 made of a nonwoven fabric or urethane is used. Is pasted. This buffer sheet material 82 is affixed in order to prevent the generation of abnormal noise due to the direct contact between the support portion 60 and the contact displacement portion 74. Therefore, the support part 60 comes to push the contact displacement part 74 via the cushioning sheet material 82, thereby supporting the upper wall part 42. However, it is not necessary to affix the cushioning sheet material 82 when abnormal noise does not occur even when the support portion 60 and the contact member 70 come into contact with each other or when the abnormal noise generation level is extremely small.

  Therefore, in the vehicle intake duct D of the embodiment configured as described above, as shown in FIG. 5, when an external force larger than the external force applied in a normal use state is applied to the upper wall portion 42, The support portion 60 provided on the upper wall portion 42 displaces the contact displacement portion 74 of the contact member 70 attached to the lower wall portion 44, so that smooth deformation of the upper wall portion 42 is allowed. That is, the deformation of the upper wall portion 42 in the duct body 40 is not due to the bending or bending compression deformation of the support portion 60, but the deformation (contact displacement) of the contact member 70 due to the contact of the support portion. Displacement of the portion 74). Therefore, even if the deformation of the duct main body 40 increases, the repulsive force hardly increases. Further, when the external force applied to the upper wall portion 42 is released, the contact displacement portion 74 pushes the support portion 60 while returning to the original state by the return elastic force of the contact member 70, so that the duct body 40 is It is also possible to return to the original shape. Furthermore, since the duct main body 40 and the contact member 70 are configured as separate members, the corresponding contact member 70 can be made of various materials different from the duct main body 40. Thereby, the deformation load of the duct main body 40 can be easily set without being restricted by the material of the duct main body 40 and the thickness of the lower wall portion 44.

(Example of change)
The contact member 70 is not limited to the shape of the above-described embodiment. For example, as shown in FIG. 6, a screw fastening hole 54 into which a mounting screw 80 is screwed between the air intake port 46 and the insertion portion 62. Can be formed in a simple long rectangular shape by providing the screw fastening hole 54 between the air intake port 46 and the insertion portion 62. It is.

  The contact member 70 is not limited to a metal member, and is made of a material that can be elastically deformed, such as a synthetic resin formed from a synthetic resin plate or the like, or a rubber formed from a rubber plate. If it is, it can be implemented. Thereby, as described above, the deformation load of the duct main body 40 can be easily set without being restricted by the material of the duct main body 40 or the thickness of the lower wall portion 44.

  As shown in FIGS. 7A and 7B, the contact displacement portion 74 of the contact member 70 is formed in a plug shape having the same outer contour shape as the opening contour shape of the insertion portion 62, and is supported. When the part 60 is not in contact, the contact displacement part 74 may be configured to fit into the insertion part 62. In this case, the inner peripheral end surface portion of the insertion portion 62 is an inclined surface that expands from the inside of the duct main body 40 toward the outer side, and the outer peripheral end surface portion of the contact displacement portion 74 is close to the duct main body 40 side. It is desirable to have an inclined surface inclined inward as it goes on. Thereby, when the outer peripheral end surface portion of the contact displacement portion 74 is in close contact with the inner peripheral end surface portion of the insertion portion 62 when the contact member 70 is not deformed, the external air is passed through the insertion portion 62. It is possible to prevent inflow.

As shown as a reference example in FIG. 8, the abutting displacement portion 74 of the abutting member 70 is located inside the lower wall portion 44 (inside the duct main body 40) while facing the insertion portion 62 so as to be abuttable against the support portion 60. ) May be attached. In this reference example, the contact displacement portion 74 of the contact member 70 is formed in an outer contour shape smaller than the opening contour shape of the insertion portion 62. Therefore, when the support portion 60 comes into contact with the contact displacement portion 74, the contact displacement portion 74 is displaced to the outside of the duct body 40 through the insertion portion 62 as shown by a two-dot chain line in FIG. 8. Since the support portion 60 is displaced to the outside of the duct body 40 through the insertion portion 62, the upper wall portion 42 is allowed to be deformed. In addition, since the contact displacement portion 74 is formed to be smaller than the insertion portion 62, a covering seal member 84 that covers the insertion portion 62 is disposed outside the lower wall portion 44, and the outside is inserted through the insertion portion 62. Air can be prevented from flowing into the duct body 40.

  In the embodiment, the contact member 70 is attached to the duct main body 40 with the attachment screw 80, but the attachment manner of the contact member 70 is not limited to this. For example, a boss that is inserted into the screw insertion holes 76 and 76 of the abutting member 70 is projected outside the lower wall portion 44, and the abutting member 70 is ducted by melting and deforming the top of the boss. You may make it attach to the main body 40. FIG. Further, the contact member 70 may be fixed to the duct main body 40 by using attachment fixing means such as a rivet or a locking metal fitting. Further, a locking claw portion or the like is formed on the abutting member 70, and a locking receiving portion to which the locking claw portion can be locked is formed on the duct body 40. The locking claw portion and the locking receiving portion The abutting member 70 may be attached to the duct body 40 by locking. When the contact member 70 is made of a synthetic resin that is compatible with the duct main body 40, the contact member 70 is welded to the duct main body 40 by vibration welding technology or the like, so that the contact member 70 is connected to the duct main body 40. You may make it attach to.

  As shown in FIG. 9, the support portion 60 provided on the upper wall portion 42 may be configured as a member separate from the upper wall body 42. FIG. 9A shows a form in which a support portion 60 formed separately from the upper wall portion 42 is attached to the inside of the upper wall portion 42, and FIG. 9B is a separate body from the upper wall portion 42. The form which attached the support part 60 formed in 3 from the outer side of this upper wall part 42 is shown. The support portion 60 is fixed to the upper wall portion 42 by using a screw shown in the drawing, welding, adhesion, or the like. When the upper wall portion 42 and the support portion 60 are configured separately, the support portion 60 can be formed from a material (metal, synthetic rubber, etc.) different from the duct body 40.

  The support portion 60 is not limited to a thickness that is substantially the same as the thickness of the upper wall portion 42, and may be configured to be thinner or more solid than the upper wall portion 42.

  When it is necessary to increase the degree of adhesion between the duct body 40 and the contact member 70, a seal member that surrounds the insertion portion 62 is attached to the outer surface of the lower wall portion 44 or the contact displacement portion 74 of the contact member 70. You may make it do. The sealing member is preferably one having elasticity such as urethane or rubber.

  In the embodiment, an example in which the contact member 70 is attached to the lower wall portion 44 so that the contact displacement portion 74 is separated from the duct body 40 on the rear side of the insertion portion 62 is illustrated. It is not limited to this. That is, the deforming contact member 70 may be attached to the lower wall portion 44 so that the contact displacement portion 74 is separated from the duct body 40 on the front side of the insertion portion 62. Further, the deforming contact member 70 may be attached to the lower wall portion 44 so that the contact displacement portion 74 is separated from the duct body 40 on the left side or the right side of the insertion portion 62.

It is the perspective view which showed the state which attached the vehicle intake duct of the Example to the vehicle body front side. It is the II-II sectional view taken on the line of FIG. (a) is the fragmentary perspective view which showed the support part provided in the duct main body, and the contact member attached to this duct main body, (b) is a top view of (a). It is the perspective view shown in the state which attaches a contact member to a duct main body. It is the sectional side view which showed the state which the contact displacement part of the contact member displaced and the duct main body deform | transformed by applying the external force by a deformation | transformation of an engine hood to an upper wall part. It is the perspective view which showed another example of the contact member. (a) is the perspective view which showed another example of the contact member, (b) is the VIIb-VIIb sectional view taken on the line of (a). It is the sectional side view which showed the reference example of the contact member. It is side sectional drawing which showed the support part comprised separately from the duct main body, Comprising: (a) shows the form which fixed the support part inside the upper wall part, (b) is provided in the upper wall part The form which fixed the support part to the outer side of this upper wall part through the opened opening part is shown. 1 is a perspective view schematically showing the inside of an engine room in a vehicle. It is the XX sectional view taken on the line of FIG. It is a partially broken perspective view of the conventional vehicle intake duct illustrated in FIG. It is the sectional side view which showed the state which assembled | attached the conventional vehicle intake duct illustrated in FIG. 12 to the vehicle front side in the state before a deformation | transformation of an engine hood. FIG. 13 is a side cross-sectional view showing a state in which the conventional vehicle intake duct illustrated in FIG. 12 is assembled on the vehicle front side in a state where an external force accompanying deformation of the engine hood is applied.

Explanation of symbols

40 duct body, 42 upper wall portion (first wall body), 44 lower wall portion (second wall body), 60 support portion,
62 insertion part, 70 contact member, 72 mounting part, 72A extension part, 74 contact displacement part,
82 cushioning sheet material (sheet cushioning material)

Claims (4)

In the vehicle intake duct including a duct body having a first wall body and a second wall body facing each other,
A support portion provided in the duct body in the first wall body and projecting from the first wall body toward the second wall body;
An insertion portion that is open to a portion of the second wall that faces the support portion, and is set to a dimension that allows the support portion to be inserted;
A plate-like contact member attached to the outside of the second wall,
Said abutment member, said mounting portion is a mounting portion to the second wall, so as to be elastically deformable continuously provided by covering the insertion portion into the mounting portion, the second wall side of the first wall It has a abutment displacing portion to deform away from the duct body by the contact of the support portion intends accompanied by the deformation of the,
The contact member is configured to apply a return elastic force to the first wall body via the support portion in a state where the contact displacement portion is elastically deformed to allow deformation of the first wall body. A vehicle intake duct characterized by the above. The attachment part has an extension part extending in the same direction as the corresponding contact deformation part on both sides of the contact deformation part,
2. The vehicle intake duct according to claim 1 , wherein each of the extending portions is fixed to the second wall body . The vehicle intake duct according to claim 1 or 2, wherein a sheet-like cushioning material is disposed at a portion of the contact displacement portion facing the duct body. The vehicle intake duct according to any one of claims 1 to 3, wherein a seal member that surrounds the insertion portion is disposed between the contact member and the second wall body.

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