JP2009234441A - Mounting structure of weather strip for radiator grille - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain cost increases and prevent the deterioration in appearance quality in a mounting state with regard to a weather strip for a radiator grille. <P>SOLUTION: The weather strip 21 is attached to an upper wall part 13 of the radiator grille 11. The radiator grill 11 has a curved shape in plan view to fit a front part. The weather strip 21 is attached with clips 31 at predetermined intervals in a longitudinal direction in a state wherein the weather strip 21 is curved along an upper surface of the upper wall part 13 of the radiator grille 11. The weather strip 21 has a base part 41 made of solid rubber and a hollow seal part 42 which swells upward from the base part 41 and is made of sponge rubber. A concave groove 51 is continuously formed in the upper wall part 13 of the radiator grille 11, and a convex part 43 is integrally formed in the base part 41 of the weather strip 21. The convex part 43 is engaged with the concave groove 51. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a radiator grille weather attached to an upper wall portion of a radiator grill so as to seal between a radiator grill mounted on a front portion of a vehicle such as an automobile and an engine hood provided to be openable and closable. The present invention relates to a strip mounting structure.

  Conventionally, in order to seal between a radiator grill (front grill) mounted on the front of a vehicle such as an automobile and an engine hood (bonnet) that can be opened and closed, a weather strip for the radiator grill is provided between the two. The technique to provide is proposed (for example, refer patent document 1).

  In the seal structure of Patent Document 1, a technique for providing a weather strip on the lower surface of the front end of the engine hood is disclosed, but it is also conceivable to provide such a weather strip on the radiator grill.

  When the weather strip is provided on the radiator grill, first, a method of attaching the weather strip to the upper surface of the radiator grill through a double-sided adhesive tape can be considered. However, in the case of attaching with a double-sided adhesive tape, the cost is increased, so the feasibility is poor.

Thus, it is conceivable that the weather strip is brought into contact with the upper surface of the upper wall portion of the radiator grill and then attached with clips at a predetermined interval in the longitudinal direction. According to this method, it is difficult to increase the cost as compared with the case of using a double-sided adhesive tape. That is, it can be said that attachment using a clip is advantageous in consideration of cost.
JP 2006-21547 A

  By the way, in recent years, a shape in which the front portion of the vehicle is curved in a plan view and the shape in a plan view of the radiator grill is also made to be a curved shape corresponding to the shape. On the other hand, the weather strip is formed entirely by extrusion molding, and therefore basically has a linear shape as a whole. When such a weather strip having a linear shape is to be attached to the upper wall portion of the radiator grill having a curved shape, the weather strip may not be able to follow the curved shape well.

  For example, as shown in FIG. 7, when the weather strip 83 is attached to the curved upper wall portion 81 of the radiator grill with a clip 82 at a predetermined interval, the weather strip 83 has an original linear shape. A moving stress toward the rear of the vehicle (upward in the figure) is applied to return. Therefore, a “positional deviation” or a “gap” is formed between the upper wall portion 81 and the weather strip 83, and as a result, the appearance quality may be deteriorated.

  In particular, when the weather strip 83 has a hollow seal portion, the stress causes a collapse phenomenon of the seal portion referred to as “sink” and a rolling phenomenon of the seal portion (twist phenomenon due to a backward rotational stress). ) Is also a concern.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to reduce the appearance quality of the radiator grille while suppressing an increase in cost during installation and preventing deterioration in appearance quality in the installed state. It is to provide a mounting structure for the strip.

  Hereinafter, each means suitable for solving the above problem will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. A radiator grill mounted on the front of the vehicle;
In order to seal between the engine hood which is located above the radiator grille and can be opened and closed on the front side,
A radiator grille weather, wherein a radiator grille weather strip is attached with a clip at a predetermined interval in the longitudinal direction in a state in which the radiator grille is in contact with the top surface of the radiator wall. A strip mounting structure,
At least the upper wall portion of the radiator grill has a curved portion in plan view, and has a groove that opens rearward along the longitudinal direction.
The radiator grill weather strip has a convex portion that can be engaged with the concave groove,
A structure for attaching a weather strip for a radiator grill, wherein the convex portion is engaged with the concave groove.

  According to the means 1, since the weather strip for the radiator grille is attached to the upper wall portion of the radiator grille with the clip, it is possible to suppress an increase in the cost at the time of attachment as compared with the case of using the double-sided adhesive tape or the like. it can.

  On the other hand, since at least the upper wall portion of the radiator grille has a curved portion in plan view, when the weather grille weather strips are to be attached with clips at predetermined intervals in the longitudinal direction, adjacent clips There is a concern that the part in between cannot follow the shape of the bending portion. In this respect, in means 1, the weather strip for the radiator grille is provided with a convex portion, and the convex portion is engaged with a concave groove provided along the longitudinal direction of the upper wall portion of the radiator grill. As a result, it is possible to suppress the situation that the weather strip for the radiator grille is displaced from the upper wall portion of the radiator grill, and it is possible to prevent a positional deviation or a gap from being formed between the two. it can. As a result, it is possible to prevent deterioration of the appearance quality in the attached state.

Mean 2. The radiator grill weather strip includes a base portion that contacts the upper surface of the upper wall surface;
The radiator grille weather strip mounting structure according to claim 1, further comprising a hollow seal portion bulging upward from the base portion.

  According to the means 2, since the weather strip for the radiator grill has the hollow seal portion, when the engine hood is in the closed state, the seal portion is crushed and deformed so that the radiator grill and the engine hood The gap is stably sealed.

  On the other hand, the concern about the collapse phenomenon of the seal part called “sink” in the open state of the engine hood and the rolling phenomenon of the seal part, which could occur in the past because of having the hollow seal part, is also convex. The part can be wiped by being engaged with the concave groove.

Means 3. The base portion is formed of a solid material, and the seal portion is formed of a foam material,
3. The radiator grille weather strip mounting structure according to claim 2, wherein the convex portion is formed of the same solid material as the base portion.

  According to the means 3, in addition to the function and effect of the means 2, since the convex part is formed of the same solid material as the base part, it is relatively easy to manufacture the weather strip, and the convex part is made of a foam material. Unlike the case where it is formed, predetermined strength and rigidity are ensured, so that sag and the like are unlikely to occur and the engaged state can be maintained for a long period of time.

  Means 4. The weather strip for a radiator grill according to any one of means 1 to 3, wherein the concave groove and the convex part are extended obliquely downward at a vehicle front position relative to the clip. Mounting structure.

  According to the means 4, the concave groove and the convex portion are extended obliquely downward at the vehicle front position than the clip. For this reason, when a stress is applied to the radiator grill weather strip in the rearward direction of the vehicle, the convex portion is related to the wall portion of the concave groove with respect to the rearward shift stress and the rolling stress. . As a result, it is possible to more reliably prevent a situation in which the convex portion comes off, and thus more reliably prevent deterioration of the appearance quality.

  Means 5. Any one of means 1 to means 4, wherein the radiator grill weather strip is entirely or mostly formed of an extruded portion, and the convex portion extends along a longitudinal direction of the extruded portion. The structure for attaching a weather strip for a radiator grill as described in 1.

  According to the means 5, the convex portion can be formed by extrusion as well as the general portion. Therefore, it does not take time for manufacturing, and can suppress an increase in cost.

  Means 6. The structure for attaching a weather strip for a radiator grill according to any one of means 1 to 5, wherein the convex part is fitted into the concave groove.

  According to the means 6, since the convex portion is fitted into the concave groove, the convex portion is difficult to be removed from the concave groove. For this reason, it is possible to more reliably prevent problems caused by the protrusions coming off.

  Hereinafter, an embodiment will be described with reference to the drawings. A radiator grill 11 (see FIGS. 3, 4, 5, etc.) is provided at the front of the engine room located at the front of the automobile. An engine hood 12 is provided at the top of the engine room so as to be openable and closable. A radiator strip weather strip (hereinafter simply referred to as “weather strip”) 21 is attached to the upper wall 13 of the radiator grill 11 so as to seal the space between the two.

  In the present embodiment, for the convenience of having the front portion of the automobile curved in plan view, the radiator grill 11 also has a curved shape (convex shape on the front side) matched to the front portion. Yes. The weather strip 21 is in a state of being in contact with the upper surface of the upper wall portion 13 of the radiator grill 11 having such a curved shape, that is, as shown in FIG. 1, the weather strip 21 is curved. In this state, the clip 31 (see FIG. 3) is attached at a predetermined interval in the longitudinal direction. By being attached with the clip 31 in this way, an increase in cost is suppressed as compared with the case where a double-sided adhesive tape is used.

  As shown in FIGS. 1 and 2, the weather strip 21 is mainly composed of an extrusion molding portion 22 formed by extrusion molding, and a mold molding portion 23 (shaded in the figure) whose both ends are formed by molding. It is a part with a pattern). Further, the weather strip 21 is substantially linear as a whole because most of the weather strip 21 is made of the extrusion molding portion 22. In this embodiment, since the structure of the extrusion molding part 22 has a characteristic, the said extrusion molding part 22 is demonstrated in detail below. As shown in FIGS. 3 and 4, the weather strip 21 (extruded portion 22) includes a base portion 41 that contacts the upper surface of the upper wall portion 13 of the radiator grill 11 and a hollow shape that bulges upward from the base portion 41. The seal part 42 is provided. The base portion 41 is formed of EPDM solid rubber, and the seal portion 42 is formed of EPDM sponge rubber.

  Now, in this embodiment, the upper wall part 13 of the radiator grille 11 is continuously formed with a concave groove 51 that opens rearward along the longitudinal direction thereof. The concave groove 51 extends obliquely downward toward the front side of the vehicle at a vehicle front position (left side position in FIG. 3) from a portion where the weather strip 21 abuts (for example, a hole for the clip 31). A front side wall 52, a rear side wall 53, and a bottom wall 54 are provided.

  On the other hand, a convex portion 43 made of the same EPDM solid rubber as the base portion 41 is integrally formed on the base portion 41 of the weather strip 21. The convex portion 43 is also extended obliquely downward toward the front side of the vehicle at the vehicle front position relative to the installation position of the clip 31. The convex portion 43 of the weather strip 21 is engaged with the concave groove 51. More specifically, the thickness of the convex portion 43 is set to be equal to or somewhat larger than the width of the concave groove 51, and the convex portion 43 is press-fitted into the concave groove 51 in a fitted state.

  Next, the effect of this embodiment comprised as mentioned above is demonstrated.

  As described above, since the weather strip 21 is attached to the upper wall portion 13 of the radiator grill 11 with the clip 31, it is possible to suppress an increase in cost when attaching compared to the case where a double-sided adhesive tape or the like is used. .

  On the other hand, since the upper wall portion 13 of the radiator grille 11 has a curved portion in plan view, when the weather strip 21 having a linear shape is to be attached with a clip 31 at a predetermined interval in the longitudinal direction. There is a concern that the portion between the adjacent clips 31 cannot follow the shape of the bending portion. In this regard, in this embodiment, the weather strip 21 (extrusion molding portion 22) is provided with a convex portion 43, and the convex portion 43 is a concave portion provided along the longitudinal direction of the upper wall portion 13 of the radiator grill 11. It is engaged with the groove 51. As a result, it is possible to prevent the weather strip 21 from being displaced from the upper wall portion 13 of the radiator grill 11, and to prevent a positional deviation or a gap from being formed between the both 13 and 21. can do. As a result, it is possible to prevent deterioration of the appearance quality in the attached state.

  Further, in the present embodiment, since the weather strip 21 has the hollow seal portion 32, as shown by a two-dot chain line in FIG. By the portion 12 being crushed and deformed, the gap between the radiator grille 11 and the engine hood 12 is stably sealed.

  On the other hand, because of having a hollow seal portion 32, the concerns such as the crushing phenomenon of the seal portion referred to as “sink” in the engine hood open state and the rolling phenomenon of the seal portion, which could occur conventionally, The protrusion 43 can be wiped by being engaged with the groove 51. In particular, in the present embodiment, since the concave groove 51 and the convex portion 43 are extended obliquely downward at the vehicle front position than the clip 31, the above-described effect can be achieved more reliably.

  This point will be described in more detail. When a portion between adjacent clips 31 is curved following the upper surface of the upper wall portion 13, the portion receives stress in the rearward direction of the vehicle, that is, in the right direction in FIG. It becomes. In this case, conventionally, when stress is applied as indicated by an arrow α in the figure, the front portion of the weather strip moves backward, and there is a concern about the collapse phenomenon of the seal portion called “sink”. It had been. In this respect, in the present embodiment, since the convex portion 43 is engaged and abutted against the rear side wall portion 53 of the concave groove 51, the “sink” caused by the front portion of the weather strip 21 moving rearward. The collapse phenomenon of the seal part called can be prevented. Conventionally, when stress is applied as indicated by an arrow β in the figure, there has been a concern about a rolling phenomenon due to the seal portion turning up. In this regard, in the present embodiment, since the convex portion 43 is engaged / abutted with the front side wall portion 52 of the concave groove 51, it is possible to prevent a rolling phenomenon due to the seal portion turning up. Thus, in this embodiment, in the weather strip 21 having the hollow seal portion 32, the collapse phenomenon and the rolling phenomenon of the seal portion 32 can be effectively prevented.

  In particular, in the present embodiment, since the convex portion 43 is fitted into the concave groove 51, the convex portion 43 is difficult to be removed from the concave groove 51. For this reason, the above-described effects can be achieved more reliably.

  Furthermore, in this embodiment, since the convex part 43 is integrally formed by the same EPDM solid rubber as the base part 41, since manufacture is comparatively easy and predetermined intensity | strength and rigidity will be ensured, Sagging is unlikely to occur and the engaged state can be maintained over a long period of time. Moreover, the convex part 43 can be shape | molded by extrusion molding similarly to another general part. Therefore, it does not take time for manufacturing, and can suppress an increase in cost.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above-described embodiment, the case where the convex portion 43 has a rectangular cross-section is specified, but the cross-sectional shape of the convex portion is not necessarily limited to that of the above-described embodiment. Therefore, for example, a protrusion having a triangular cross section or a protrusion having a curved end surface can be realized. Further, for example, as shown in FIG. 6, a hollow portion 45 may be formed on the convex portion 44. In this case, it is possible to suppress the increase in thickness due to the protrusions and to prevent sink marks and the like, and it is possible to suppress the increase in the material used. In addition, the operability at the time of fitting can be improved.

  (B) The cross-sectional shape of the weather strip is not necessarily limited to that of the above embodiment. Therefore, it can also be embodied in a weather strip that does not have a hollow portion and is sealed by a lip. However, as described above, it can be said that the weather strip of the type having the seal portion is more effective from the viewpoint of effectively preventing the crushing phenomenon and the rolling phenomenon of the seal portion.

  (C) In the above embodiment, EPDM is exemplified as a material constituting the weather strip 4, but other rubber materials such as IR (isoprene rubber) and CR (chloroprene rubber) may be used. A resin material such as (olefin-based thermoplastic elastomer) may be used.

  (D) In the above embodiment, the case where the protrusion 43 is extruded together with the base 41 is embodied, but the protrusion may be provided separately from the weather strip body.

  (E) In the above embodiment, the weather strip 21 in which the mold forming portions 23 are provided at both ends of the extrusion molding portion 22 is embodied. However, a weather strip consisting only of the extrusion molding portion may be used. .

It is a top view which shows the weather strip attached to the radiator grille in one Embodiment. It is a fragmentary top view which shows the weather strip before attachment. It is sectional drawing which shows the attachment state of the weather strip in the site | part corresponding to a clip. It is sectional drawing which shows the attachment state of the weather strip in the site | part corresponding between adjacent clips. It is an expanded sectional view which shows the state by which the convex part is engaged (fitting) with the ditch | groove. It is sectional drawing which shows the weather strip in another embodiment. It is a figure for demonstrating the conventional malfunction, Comprising: It is a top view which shows a radiator grill and a weather strip typically.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Radiator grill, 12 ... Engine hood, 13 ... Upper wall part, 21 ... Weather strip (for radiator grill), 22 ... Extrusion part, 31 ... Clip, 41 ... Base part, 42 ... Seal part, 43, 44 ... Convex part, 51 ... concave groove.

Claims (6)

A radiator grill mounted on the front of the vehicle;
In order to seal between the engine hood which is located above the radiator grille and can be opened and closed on the front side,
A radiator grille weather, wherein a radiator grille weather strip is attached with a clip at a predetermined interval in the longitudinal direction in a state in which the radiator grille is in contact with the top surface of the radiator wall. A strip mounting structure,
At least the upper wall portion of the radiator grill has a curved portion in plan view, and has a groove that opens rearward along the longitudinal direction.
The radiator grill weather strip has a convex portion that can be engaged with the concave groove,
A structure for attaching a weather strip for a radiator grill, wherein the convex portion is engaged with the concave groove. The radiator grill weather strip includes a base portion that contacts the upper surface of the upper wall surface;
The structure for attaching a weather strip for a radiator grill according to claim 1, further comprising a hollow seal portion that bulges upward from the base portion. The base portion is formed of a solid material, and the seal portion is formed of a foam material,
The structure for attaching a weather strip for a radiator grill according to claim 2, wherein the convex portion is formed of the same solid material as the base portion.   4. The radiator grill according to claim 1, wherein the concave groove and the convex portion extend obliquely downward at a vehicle front position relative to the clip. 5. Weather strip mounting structure.   5. The radiator grill weather strip is entirely or mostly formed of an extruded portion, and the convex portion extends along a longitudinal direction of the extruded portion. 6. A structure for attaching a weather strip for a radiator grill according to any one of the preceding claims.   The structure for attaching a weather strip for a radiator grill according to any one of claims 1 to 5, wherein the convex portion is fitted into the concave groove.

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