JP2606634B2 - Cowl louver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cowl louver, and more particularly to a cowl louver in which a lower edge portion of a windshield of an automobile is held by a holding portion provided on one side edge.

[0002]

2. Description of the Related Art A cowl louver is mounted in a gap between a rear edge of a hood of a vehicle body and a lower edge of a windshield, and is made of, for example, a hard synthetic resin material such as PP (polypropylene) mixed with a filler such as talc. A plurality of holding pieces having a substantially L-shaped cross section are integrally formed on a lower surface of a holding edge formed on one side edge (front glass side) of the cowl louver main body at predetermined intervals. Each holding piece forms a holding portion having a substantially U-shaped cross section together with the holding edge, and the lower edge of the windshield is elastically held between the holding piece and the holding edge. .

[0003] However, this conventional cowl louver, when the lower edge of the windshield is pressed into the holding portion,
The pinch and the windshield make direct contact. Therefore, the surface of the windshield is damaged by the holding portion, and the vibration generated when the car is running is transmitted to the cowl louver,
Abnormal noise may be generated at the contact portion between the holding portion and the windshield. Further, since the holding portion is integrally formed of the same hard synthetic resin material as the cowl louver main body, the cowl louver is deformed after molding and the product size varies, and, for example, the opening of a part of the holding portion becomes small. In such a case, it is conceivable that stress is applied only to a portion of the lower edge portion of the windshield that is held by the above-mentioned portion. In this case, there is a possibility that stress is directly concentrated on the relevant portion of the windshield from the part of the holding portion.

Therefore, in order to prevent such inconvenience, a cowl louver having a configuration shown in FIG. 3 has been proposed. FIG. 3 is a sectional view of a conventional cowl louver.

In FIG. 1, a sandwiching edge portion 5a formed on one side edge of a cowl louver main body 5 made of a hard synthetic resin material such as PP containing filler has an EPDM dimension which covers the upper surface and the lower surface over the entire longitudinal direction. (ethylene·
A long protector 7 made of rubber (propylene copolymer) is fixed. On the other hand, a protective sheet 8 made of EPDM rubber, which is dimensioned to cover substantially the entire upper surface of the support portion 6a, is attached to the upper surface of the support portion 6a of the plurality of holding pieces 6 extending substantially parallel to the holding edge portion 5a. I have. A holding portion S is formed by the holding edge 5a, the protector 7, the holding piece 6, and the protection sheet 8. In order to absorb the abnormal noise generated in the cowl louver due to the contact with the windshield G or the vehicle body while the automobile is running, the noise preventing member 9 made of a sound absorbing material such as a sponge is provided on the lower surface of the front portion of the cowl louver body 5. Is affixed.

Therefore, in this cowl louver, the windshield G is sandwiched between the holding edge 5a and the supporting portion 6a of the holding piece 6 via the protector 7 and the protective sheet 8, and is held by the holding edge 5a or the supporting portion 6a. There is no direct contact. Therefore, the surface of the windshield G is prevented from being damaged by the cowl louver, and at the same time, the generation of abnormal noise in the cowl louver when the vehicle is running is also prevented. Even when the cowl louver has the above-described variation in product dimensions and the like, and stress concentrates on a portion of the front glass G sandwiched by a portion of the sandwiching portion S, the protector 7 and the protective sheet 8 reduce the stress. .

[0007]

However, as shown in FIG.
In the cowl louver, the protector 7 and the protection sheet 8 are formed as separate parts, and are manufactured separately from the holding edge 5a and the holding piece 6 of the cowl louver main body 5, and then the holding edge 5a.
And the protective sheet 8 is adhered to the support portion 6a, so that the dimensional accuracy of the protector 7 and the protection sheet 8 varies, and
And the size of the protective sheet 8 is the clamping edge 5a of the cowl louver.
In addition, there is a possibility that the size does not match a desired size for covering the support portion 6a and preventing direct contact with the windshield G. If the protector 7 or the protective sheet 8 is smaller than the desired size, a part of the holding edge 5a or the supporting part 6a is exposed, and the holding part S and the windshield G come into direct contact with each other at the exposed part. And the windshield G may be damaged or damaged. In particular, since the protector 7 has a long shape, the dimensional accuracy in the longitudinal direction tends to vary.

If the protector 7 or the protective sheet 8 is longer than a desired size, the protector 7 or the protective sheet 8 protrudes outward from both ends of the holding edge 5a or the support 6a, thereby deteriorating the appearance of the cowl louver. Furthermore,
When the front glass G is heated and its surface temperature rises, the protector 7 or the protective sheet 8 is extended and protrudes outward from both ends of the holding edge 5a or the support 6a, thereby impairing the appearance of the cowl louver or holding the cowl louver. It is conceivable that the film is peeled off from the support 5a or the support 6a.
Further, since the protector 7 and the protection piece 8 are manufactured and attached separately from the cowl louver, the workability of the entire cowl louver is reduced by the mounting work, and further, the cost of the entire cowl louver increases due to the manufacturing cost. Resulting in. In addition, the work of attaching the protector 7 and the protection sheet 8 must be performed in a small space between the holding edge portion 5a and the holding piece 6, and the work is complicated.

Another prior art is disclosed in Japanese Patent Application Laid-Open No. 61-235.
There is a technique described in Japanese Patent Publication No. 277. This publication contains the flow
Cowl box along the lower edge of the window glass
A front body structure of the installed car, wherein
Window holds the windshield
Forming the front plate of the box with the lath holding member
A front cowl plate, a bottom plate of the box and
Consists of a dash upper panel that forms the rear panel
And a dash with the window glass holding member.
The joint part with the upper panel is brittle compared to other joint members.
A weakly bonded technique is disclosed. But this
This type of technology can deform or move the cowl box during a collision.
Prevents damage to the windshield due to movement
This prevents the windshield from being scratched.
However, the generation of abnormal noise and the absorption and relaxation of stress
Was inadequate. Accordingly, the present invention is, protection
Omit parts such as data and protection pieces, and prevent the generation of abnormal noise and the damage of the windshield, absorb stress,
The task is to provide a relaxed cowl louver.

[0010]

A cowl according to the present invention
Is attached to the lower edge of the windshield by two-color molding
Of a cowl louver body made of rigid synthetic resin
Open the side edge to hold the lower edge of the windshield.
The holding part made of soft material with a mouth is formed integrally
In addition, the holding portion is substantially colinear with the cowl louver main body.
An extending clamping edge, and a lower surface substantially at the center in the width direction of the clamping edge.
And a plurality of holding pieces having a substantially L-shaped cross section integrally formed with the holding member.
And a clamping piece extending substantially parallel to the clamping edge and the clamping edge.
The opening is formed between the supporting portion and the supporting portion.

[0011]

According to the present invention, the lower edge of the windshield is held in the opening of the holding portion made of a soft material, and the inner surface of the holding portion made of a soft material has sufficient flexibility on the surface of the windshield. It doesn't hurt the windshield when hitting. In addition, the holding portion made of a soft material absorbs vibration between the windshield and the vehicle, preventing the generation of abnormal noise.
The stress applied to the windshield from the holding edge and the holding piece is absorbed and reduced.

[0012]

Embodiments of the present invention will be described below.

FIG. 1 is a partial perspective view of a cowl louver according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view of the cowl louver according to one embodiment of the present invention.

In the figure, the cowl louver of this embodiment is
By two-color molding, a holding portion S made of a soft material is integrally formed on one side edge (front glass G side) of the cowl louver main body 1 made of a hard synthetic resin material, and a rear edge of the hood and a lower edge of the windshield G are formed. Is formed in a plate shape having a size corresponding to the gap of the above. That is, on one side edge of the cowl louver main body 1,
The holding edge 2 of the holding portion S is formed integrally with the cowl louver main body 1 substantially on the same line. Also, the clamping edge 2 of the clamping portion S
A plurality of holding pieces 3 having a substantially L-shaped cross section are integrally formed at predetermined intervals in the longitudinal direction.

Each of the holding pieces 3 has a hanging part 3a integrally formed on the lower surface substantially at the center in the width direction of the holding edge part 2, and a hanging part 3a.
And a support portion 3b which is integrally formed so as to be substantially perpendicular to the lower edge and extends substantially parallel to the holding edge portion 2.
Each of the holding pieces 3 forms a holding section S having a substantially U-shaped cross section together with the front end side of the holding edge 2. The supporting portion 3b has a front glass G inserted between the supporting portion 3b and the holding edge portion 2 to form an opening O for holding. Preferably, in order to securely hold the windshield G between the holding edge 2 and the support 3b of the holding piece 3, the holding edge 2 is slightly curved and inclined toward the support 3b. The tip is thicker than the base.

The cowl louver main body 1 is provided with a plurality of net attachment holes 1a for attaching a net (not shown) for preventing foreign substances such as snow from entering the engine room. Also, on the lower surface of the front part of the cowl louver body 1,
A noise prevention member 9 similar to the conventional one is attached. Furthermore,
At the front end of the cowl louver main body 1, a fastening means (not shown) for attaching and fixing the cowl louver to the vehicle body is provided.

In this embodiment, as the hard synthetic resin material, a PP resin mixed with a filler such as talc is used, but other hard resins such as ABS resin and hard vinyl chloride resin can also be used. It is. As the soft material, a thermoplastic rubber (TPR) is used. As long as flexibility can be ensured and vibration can be absorbed, soft vinyl chloride resin, EVA resin, PP resin in which rubber is dispersed, and the like can be used. Soft resins can also be used.

The cowl louver is formed by two-color molding.
Various materials, for example, PP with filler as a hard synthetic resin material constituting the cowl louver main body 1 and TPR as a soft material constituting the holding portion S are injection-molded to be integrally formed.

That is, first, a hard synthetic resin material in a molten state is injected from one nozzle into a cavity of a mold (not shown) having a shape corresponding to the shape of the cowl louver. A molten soft material is injected and injected from the other nozzle provided on the side opposite to the nozzle. Then, the hard synthetic resin material and the soft material advance in the cavity in a direction facing each other, and are integrally joined to each other at a position corresponding to the joining surface of the cowl louver main body 1 and the holding portion S. Forms the cowl louver body 1 and the soft material forms the holding portion S. And
After the injection is completed, the cowl louver shown in FIG. 2 is manufactured by cooling for a predetermined time to solidify the hard synthetic resin material and the soft material, and attaching the abnormal noise preventing member 9 to the lower surface of the front portion of the cowl louver main body 1. .

In the cowl louver of this embodiment formed as described above, the cowl louver main body 1 made of a hard synthetic resin material imparts rigidity to the entire cowl louver to maintain its shape. Further, the holding portion S made of the soft material has a predetermined elasticity so that the holding edge 2 and the support portion 3b of the holding piece 3 can be elastically approached and separated. Further, the holding portion S has sufficient flexibility, in particular, it comes into contact with the surface of the windshield G held between the holding edge portion 2 and the support portion 3b flexibly, and has a vibration damping property. To absorb the vibration between the holding portion S and the windshield G due to the vibration transmitted from the outside to the cowl louver, and to absorb and reduce the stress concentration on the windshield G from the holding portion S. Do.

Next, an operation of assembling the cowl louver of the present embodiment, which is configured as described above, to the windshield G will be described.

First, the holding edge 2 of the holding portion S is made to approach the lower edge of the windshield G, and the cowl louver is attached to the window frame (not shown) of the vehicle body via the holding portion S. To the lower edge of the That is, the upper surface of the support portion 3b of the holding piece 3 of the holding portion S is brought into contact with the lower edge of the windshield G, and the cowl louver is held between the holding edge portion 2 and the support portion 3b so as to hold the windshield G. Press upward to move. Then, according to the thickness of the windshield G, the holding piece 3 is expanded so as to widen the opening O.
, The lower edge of the windshield G is pressed and clamped between the clamping edge 2 and the support 3b.
At this time, the lower surface of the clamping edge 2 and the upper surface of the support portion 3b slide on the surface of the windshield G.
The support portion 3b and the support portion 3b are both formed of a soft material and have sufficient flexibility to slide on the surface of the windshield G. The surface of G is not damaged.

After the cowl louver is attached to the windshield G via the holding portion S, the cowl louver is fixed to the vehicle body by fastening means at the front end of the cowl louver main body 1. As a result, the cowl louver is immovably fixed in the gap between the rear edge of the hood of the vehicle body and the lower edge of the windshield G, and the assembly operation of the cowl louver is completed.

In the state where the cowl louver is mounted on the vehicle body, even if the vibration generated during running of the vehicle is transmitted from the vehicle body to the cowl louver, the holding portion S made of a soft material has a vibration-proof property and the windshield G and the windshield G are connected to each other. To prevent the generation of abnormal noise at the contact portion between the holding portion S of the cowl louver and the windshield G and the like, and the abnormal noise preventing member 9 is provided by the contact between the cowl louver main body 1 and the vehicle body. The generated noise is prevented, so that passengers are not uncomfortable.
Further, even when the vibration of the vehicle body during traveling is transmitted to the surface of the windshield G via the holding portion S of the cowl louver,
Since the holding portion S made of a soft material is in flexible contact with the surface of the windshield G, the surface of the front glass G is not damaged by the holding portion S. When the cowl louver has a variation in dimensional accuracy and the like, stress is applied only to a portion of the lower edge of the windshield G where a portion of the holding portion S is held, together with the holding edge 2. The support portion 3b of the part of the holding portion S has sufficient flexibility to absorb and reduce the stress concentration, thereby preventing the influence of the stress concentration on the relevant portion of the windshield G.
Thereby, breakage such as cracks and cracks does not occur in the relevant portion of the windshield G.

As described above, the cowl louver of the above-described embodiment is formed by two-color molding on one side edge of the cowl louver main body 1 made of a hard synthetic resin material attached to the lower edge of the windshield G. A holding portion S made of a soft material having an opening O capable of holding the edge is integrally formed, and the holding portion S extends substantially in the same line as the cowl louver main body 1, and a width of the holding edge. A plurality of holding pieces 3 having a substantially L-shaped cross section integrally formed on the lower surface substantially at the center in the direction.
The opening O is formed between the holding edge 2 and the supporting portion 3b of the holding piece 3 extending substantially in parallel with the holding edge 2.

Therefore, in the above-described embodiment, the holding portion S made of a soft material absorbs the vibration between the windshield G transmitted from the vehicle body when the vehicle is running, and the holding portion S and the front glass G To prevent the generation of abnormal noise between
There is no discomfort to passengers while the car is running. Further, since the lower edge of the front glass G is sandwiched between the holding edge 2 made of a soft material and the support 3b also made of a soft material, the holding edge 2 and the support 3b made of the soft material are held. Has sufficient flexibility to elastically contact the surface of the windshield G and does not damage the surface of the windshield G. As a result, the appearance of the windshield G is maintained in a favorable state. The holding portion S absorbs and relieves the stress concentration applied to the windshield G from some of the holding portions S due to variations in dimensional accuracy and the like, thereby preventing the front glass G from being damaged. Further, in order to avoid direct contact between the holding portion S and the windshield G, it is not necessary to separately manufacture a separate part such as the conventional protector 7 or the protection sheet 8 and retrofit it to the cowl louver. The workability can be improved, and the cost required for the separate part can be eliminated to reduce the product cost of the cowl louver. Further, since the entire holding portion S is integrally formed of a soft material, even if the surface temperature of the front glass G rises and the holding portion S is heated, and the dimensional accuracy of the holding portion S slightly changes, the holding portion S is changed. S always elastically contacts the windshield G and keeps the sandwiched state with the windshield G.

In the above-described embodiment, the clamping edge 2 is slightly curved toward the supporting portion 3b in order to securely clamp the windshield G between the clamping edge 2 and the support 3b of the clamping piece 3. The support portion 3b is inclined and the tip end portion of the support portion 3b is thicker than the base end portion. However, the present invention is not limited to this. As long as it can clamp the lower edge of the windshield G,
The holding portion S has another shape, for example, the holding edge portion 2 and the support portion 3b are formed in parallel, or the tip portion of the support portion 3b has the same thickness as the base end portion without increasing the thickness. It is also possible. In particular, since the cowl louver is immovably fixed to the vehicle body by the fastening means, the front glass G
The holding force may be such that the holding edge portion 2 and the support portion 3b are in elastic contact with the surface of the front glass G.

The holding portion S has a holding piece 3 formed on the lower surface substantially at the center of the holding edge portion 2 in the width direction. The front end edge of the holding edge portion 2, that is, the joint portion with the cowl louver main body 1 is formed. It is also possible to form the hanging portion 3a of the holding piece 3 from the vicinity. However, from the viewpoint of maintaining the joining strength between the holding portion S and the cowl louver main body 1, it is preferable that the holding piece 3 is formed at a certain distance from the connecting portion between the holding edge portion 2 and the cowl louver main body 1.

[0029]

As described above, the cowl louver of the present invention is
Is that the holding part made of soft material is
Absorb the vibration between the windshield transmitted from the
Prevents generation of abnormal noise between the holding part and the windshield
This can make passengers uncomfortable while driving
Absent. In addition, the clamping edge made of soft material and the soft material
The lower edge of the windshield is sandwiched between the support parts consisting of
Therefore, the holding edge portion and the supporting portion made of the soft material are
It has enough flexibility to elastically touch the surface of the windshield,
Does not damage the surface of the windshield. The result
As a result, the appearance of the windshield is maintained in a good state.
And the holding part is partially
Absorbs the stress concentration applied to the windshield from the clamp
Recover and mitigate to prevent windshield breakage. Change
To avoid direct contact between the pinch and the windshield.
Separate parts such as conventional protectors or protective sheets
Need not be manufactured separately and retrofitted to the cowl louver,
The workability can be improved by omitting the mounting work.
At the same time, remove the cost required for
The product cost of the bus can be reduced. Also, the holding part
Is entirely formed from a soft material,
As the surface temperature of the glass rises, the holding part is heated,
Even if the dimensional accuracy of the
Elastic contact with the lath and clamping with the windshield
Maintain state.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a cowl louver according to an embodiment of the present invention.

FIG. 2 is a sectional view of a cowl louver according to one embodiment of the present invention.

FIG. 3 is a sectional view of a conventional cowl louver.

[Explanation of symbols]

 1 Cowl louver body G Windshield O Opening S Holding part

Claims (1)

(57) [Claims] 1. A cowl louver main body made of a hard synthetic resin material attached to a lower edge of a windshield by two-color molding from a soft material having an opening capable of holding the lower edge of the windshield at one edge. Integrally forming the holding part
At the same time, the holding part is almost the same as the cowl louver main body.
A clamping edge extending linearly and a substantially center in the width direction of the clamping edge;
A plurality of holding pieces having a substantially L-shaped cross section integrally formed on the lower surface of the
And a support for a holding piece extending substantially parallel to the holding edge and the holding edge.
Characterized in that said opening is formed between said holding portion and said holding portion.
Luluba.