JPH04119732U - Vehicle headlamp sealing material - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a sealing material capable of sealing an arcuate gap between a bonnet and a lamp housing with a light pressing pressure. [Structure] A base side 33 fixed to the surface of the lamp housing 11 and a contact side 31 in contact with the bonnet 2, which are made of a soft material.
and a support side 32 connecting the ends of both sides,
It has a substantially triangular cylindrical cross section with a hollow part 36, and the support side 3
A sealing material in which a thin wall portion 34 is provided at the center of the sealing member 2.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is installed on the headlamp side of the vehicle, and the headlamp and bonnet It relates to a sealing material that seals the gap between the

0002

[Conventional technology]

There are gaps between the vehicle's headlamps and radiator grille and the bonnet that contain high-speed To prevent whistling noise when driving, and to use cushioning material when closing the bonnet. For example, as shown in FIGS. 3 and 4, the front end of the bonnet 2 An L-shaped 35 or is a solid body made of soft synthetic resin or rubber made by extrusion molding of the number 6 shape 36. or foam is installed as a sealant. This sealing material is the bonnet 2 When closed, pressure is applied to the headlamp lamp housing 11 and radiator grille. contact to form a seal between the two.

0003

[Problem that the idea aims to solve]

By the way, recently, vehicle designs have become more curved, and radiator grills have become more curved. The front edge of the bonnet 2 is now thinner and smaller in area, and the front edge of the bonnet 2 is From the position where the upper edges of the headlamps 1 are connected, connect the lower edges of both headlamps 1 as shown in Figure 2. Vehicle body designs have begun to be lowered closer to the vehicle position.

0004 If the front front edge of the bonnet is approximately straight, the bonnet and headlamps and The seal material between the radiator grille and the radiator grille is an extruded product with a constant cross section. By simply attaching it to the front edge of the net, it is possible to seal the space between them. It was.

[0005] However, as mentioned above, the front edge of the bonnet 2 is In the design where the lower edges of both headlamps 1 are lowered to the point where they connect, the bonnet Hold the front edge in an arc along the edge of the headlamp housing near the center of the vehicle. The front edge of the bonnet must have a three-dimensional shape. When the above-mentioned L-shaped or number 6-shaped sealing material is attached to the The parts that contact the headlamp housing and radiator grille are bent. The parts will sag and become significantly deformed, making it impossible to seal. This idea is like this The objective is to solve conventional problems.

[0006]

[Means to solve the problem]

This devised vehicle headlamp sealing material is suitable for vehicle headlamps and bonnets. In order to seal the gap between the bonnet and the extruded soft synthetic resin or rubber. A sealing material made of The base side that is fixed to the mounting surface, the contact side that touches the bonnet, and the support side that connects both sides above. , and is characterized by having a thin-walled portion approximately in the center of the supporting side. Because of this, the above problem can be solved.

[0007]

【Example】

An embodiment of this invention will be described in detail with reference to the drawings. Figure 1 shows this idea. An example of a headlamp sealing material for a vehicle is shown, cut along line A-A in Figure 2, and cut in the direction of the arrow. 2 is a diagram corresponding to an end view of a cross section when viewed in the direction, and shows the front front edge of the bonnet 2. 21 is shown in an uncompressed state in contact with the surface of the sealing material 3. Therefore, as shown in Figure 2 When the bonnet 2 is completely closed, the front edge 21 of the bonnet 2 is The seal material 3 is further lowered to slightly elastically deform the seal material 3 to seal the space between the two. Sealing material 3 is relative to the front front edge 21 of the bonnet 2 when the bonnet 2 is closed as will be described later. It is attached to the surface of the lamp housing 11.

[0008] As mentioned above, the sealing material 3 that seals the gap between the headlamp 1 and the bonnet 2 is , manufactured by extrusion from a soft synthetic resin or rubber filled or foamed composition . In addition, some parts of the sealing material 3 are made of a solid composition and other parts are made of a foamed composition material, so-called. It may also be carried out using a two-color extrusion method. As a soft synthetic resin composition, vinyl chloride The material is made by adding plasticizers, etc. to plastic resin and has excellent weather resistance, oil resistance, extrusion moldability, etc. As the rubber composition, an ethylene/propylene rubber compound is particularly preferable because of its resistance. It is preferred because it has excellent weatherability and elasticity. In addition, chloroprene rubber is applied to the surface of the molded product. It is possible to further improve weather resistance by coating the material with a coating material.

[0009] The cross-sectional shape of the sealing material 3 has a hollow portion 36 that is almost similar to the outer shape of the sealing material 3. It has a triangular tube shape and faces the front edge 21 of the bonnet 2 when it is closed. Base side 33 fixed to the surface of lamp housing 11, front front edge 2 of bonnet 2 1, and a supporting side 32 that connects both sides. A thin wall portion 34 that continues in the longitudinal direction of the sealing material 3 is provided approximately at the center of the sealing material 3 .

0010 When the bonnet 2 is closed, the contact side 31 of the sealing material 3 touches the bonnet at the center of that side. It first comes into line contact with the front edge 21 of the net 2, and then a push is applied to the bonnet 2. Due to the pressure, the sealing material 3 comes into surface contact in a slightly deformed state toward the center. Therefore As shown in Fig. 1, the contact side 31 of the lever has its central part turned outward in advance, taking into consideration the amount of deformation. It is preferable to form an arc with a slight bulge on the side.

[0011] The base side 33 of the sealing material 3 is the part that is fixed to the lamp housing 11. Fixation is carried out via adhesive, double-sided adhesive tape, or by mechanical means. It will be done. Therefore, in order to increase the contact area with the adhesive, the outer surface of this base side 33 is To prevent roughening of the surface and the extrusion of adhesive or adhesive tape from its edges, It may become concave towards the center of the wall material 3.

0012 The supporting side 32 of the sealing material 3 has a length of the sealing material 3 approximately at the center of the supporting side 32. Although a thin wall portion 34 that continues in the hand direction is provided, the thickness of the thin wall portion 34 is is approximately 1/2 of the thickness of the supporting side 32 at the joining part with the contact side 31 and the base side 33. It has a constricted shape. This thin part 34 is pressed by the bonnet 2. When the contact side 31 bends in the direction of the base side 33, it serves to support it. Thin wall part 3 If the thickness of 4 is extremely thin, the supporting force will be weak and the contact side 31 will easily move to the base side 33 side. If it collapses, it loses its sealing effect as a sealant, and if it is extremely thick, its supporting force is too strong. The contact side 31 does not fall toward the base side 33, and a large pressing force is required to close the bonnet 2. shall be.

[0013] Further, this supporting side 32 is used to fix the sealing material 3 to the lamp housing 11. , along an arc from the upper edge 11a (FIG. 2) of the lamp housing 11 to the central edge 11b. When bending, the rising angle of the contact side 31 from the base side 33 is maintained almost constant. Hold the contact side 31 at the base of the base side 32 so that the sealing material 3 bends smoothly. Supported by the department. When bending the sealing material 3 in this way, the supporting force of the supporting side 32 is sufficient. Otherwise, the supporting side 32 will bend and the end of the contacting side 31 on the supporting side 32 will touch the base side 33. Since they are deformed to the extent that they approach each other, the sealing effect of the sealing material 3 is inhibited.

[0014] In addition, regarding the sealing between the bonnet 2 and the radiator grill, use the sealing member 3. This sealing material extends to the area between the bonnet 2 and the radiator grille. , the gap between the closed bonnet 2 and the radiator grill may be sealed. Then, apply a sealing material other than the shown sealing material 3 to the bonnet 2 or radiator grill. They may be fixed to each other to seal the gap between them.

[0015]

[Effect of the idea]

The vehicle headlamp sealing material of this invention has an approximately triangular cylindrical cross section with a hollow part. When the bonnet is closed, the lamp housing surface facing the front edge of the bonnet It consists of the base side to be fixed, the contact side that contacts the bonnet, and the support side that connects the above two sides. The sealing material can be firmly fixed by providing a thin wall section at approximately the center of the support side. When bending the seal material along the arc of the headlamp housing, and When the net is closed, the thin part provided approximately in the center of the support side supports the contact side. , prevents this contact side from falling too far to the base side, and also prevents the contact side from falling too far toward the base side, and allows slight deformation of the contact side toward the base side, so the bonnet and lamp housing It is possible to seal between the parts with light pressing pressure.

[0016] In addition, the contact side is made into an arc that bulges outward, and the bonnet is placed in the center of the contact side. If the edges are configured so that they touch, the inward deformation of the arc portion will cause the edges to touch the bonnet edge. Since the contact sides are in surface contact, the sealing effect is further enhanced.

[Brief explanation of drawings]

FIG. 1 shows an example of the vehicle headlamp sealing material of this invention, and is a view corresponding to an end view of a cross section taken along line A-A in FIG. 2 and viewed in the direction of the arrow. is shown in an uncompressed state with its front front edge touching the surface of the sealant.

FIG. 2 is an external perspective view of a vehicle showing a portion where the vehicle headlamp sealing material of the present invention is used.

FIG. 3 is an end view of a cross section of a conventional sealing material taken along line AA in FIG. 2 and viewed in the direction of the arrow.

4 is an end view of a cross section of a conventional sealing material taken along line AA in FIG. 2 and viewed in the direction of the arrow.

[Explanation of symbols]

1 Headlamp 2 Bonnet 3 Sealing material 11 Lamp housing 21 Front front edge 31 Contact side 32 Support side 33 base 34 Thin wall part 36 Hollow part

Claims (1)

[Scope of utility model registration request] Claim 1: An extruded soft synthetic resin or rubber lamp that is attached to the lamp housing surface facing the front edge of the bonnet when the bonnet is closed, in order to seal the gap between the vehicle headlamp and the bonnet. The sealing material is made of aluminum, has a substantially triangular cylindrical cross section with a hollow part, and is composed of a base side fixed to the lamp housing surface, a contact side that contacts the bonnet, and a support side connecting the two sides, and A vehicle headlamp sealing material characterized by having a thin walled portion approximately in the center.