JP3299834B2 - Wind mall for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding suitable for a glass plate attached to a window opening of a vehicle (window frames, moldings, gaskets, etc. are collectively referred to as moldings).

[0002]

2. Description of the Related Art A window molding for a vehicle, especially an automobile, has a rainwater guide groove (hereinafter referred to as a rain gutter) in a part thereof.
By providing, it kills with emissions below the rainwater that has been gathered by the rain water or the wiper that falls in the window immediately.
In this way, it is possible to prevent the rainwater and the like from being scattered by the traveling wind and adhering to other windows to obstruct the view. For example, in the front window, it is preferable that the step between the window glass plate and the molding is as small as possible at the upper side to reduce aerodynamic resistance. On the other hand, in many cases, a rain garter is provided on the side portion by raising the molding portion, and a large amount of rainwater collected on the side portion by a wiper is discharged to prevent scattering. Also in the rear window or the side window, a molding with a rain gutter may be provided on a part of the upper side, the side side, or the like.

As described above, several methods have been proposed for producing moldings having different cross-sectional shapes such as a part of a side having a rain gutter. For example, a so-called encapsulation method has been proposed in which a resin is injected into a cavity by sandwiching a glass plate in a mold to form a glass plate integrated molding. As another method, moldings having different cross-sectional shapes (upper and side portions, etc.) are individually extruded and formed by welding, and these are welded or fitted through a joint whose cross-sectional shape gradually changes. It has been proposed to join using other methods.

In the encapsulation method, a molding having high appearance quality can be manufactured, and the manufacturing process is simple. On the other hand, it has disadvantages such as expensive equipment including a mold and easy breakage of a glass plate . Contact legal, the seams are conspicuous and at the junction, since the upper side portion and the side portion are molded separately, have the drawbacks of the appearance will leave easily <br/> color tone and gloss becomes uneven Have. In addition, Ru Oh concern of damage due to insufficient strength at the junction.

[0005]

As a method for improving these, as disclosed in Japanese Patent Application Laid-Open No. 4-356216, a shutter is provided on the front surface of a normal extrusion die, and these are moved to move the cross section of the molding. A method of extruding and molding a molding material while continuously changing the shape has been proposed.

[0006] In this method , when the molding material is extruded, there are portions that contact the shutter and portions that do not. Therefore, the portion molding material is in contact with the shutter, material Ri resistance is large <br/> greens as it passes through the shutter, easily bending press out been Mall material contact direction, be shaped straight It was difficult. further,
Order to sudden change of the shape at the die outlet, viscoelastic shape is hard to stabilize the material, the resin is deformed or is pushed in shape without releasing surface side of the shutter, the failure of the outer surface due to rapid change of the pruning sectional velocity There was a problem that it easily occurred.

[0007] Also, the mall made by the above method, since it is difficult considerations in the design are made when changing the cross-section, or worsening appearance step is generated between the vehicle body, further Mall There is a problem that the mall easily falls down when the height is increased.

[0008] Mall height from the surface of the aerodynamic drag reduction and design property are preferably low, reduces the drainage function of the Reingata in this case, the proposed mall shape attained this balance has not been made.

Specifically, in order to ensure a sufficient drainage function, it is necessary to increase the molding height, that is, the size of the rain gutter. However, Japanese Patent Application Laid-Open No. 4-35621
No.6 as disclosed in Japanese, merely by increasing the molding height, had a drawback aerodynamic resistance increases.

On the other hand, for example, in the case of a front window of a vehicle, a molding is formed so that a step between a window glass plate and the molding is made as small as possible in order to reduce aerodynamic resistance at an upper side thereof. However, no special consideration is given to the overhang of the glass plate of the mall to the inner peripheral side, and when the side portion of the mall is molded with the same overhang length as the overhang of the upper side, it has a rain gutter. Even so, the drainage function cannot be said to be sufficient.

An object of the present invention is to solve the above-mentioned drawbacks of the prior art, and to provide a new window molding for vehicles which has not been known so far.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the prior art, and is directed to a vehicle window molding mounted on a peripheral portion of a glass plate and interposed between a vehicle body and the glass plate. In the molding, a part corresponding to a side part and a part corresponding to a corner part of the glass sheet are continuously and integrally formed, and the molding is provided between a peripheral part of the glass sheet and a vehicle body. A base portion to be fitted into the gap formed in the base plate, a design portion provided in the vehicle exterior direction of the glass plate, and an outer edge portion projecting from the design portion toward the outer peripheral direction of the glass plate, The base has at least a recess attached to the periphery of the glass plate, and the height of the design portion gradually changes between at least one side and another adjacent side via a corner. its one side portion
In a vehicle window molding in which a rainwater guide groove is formed in the design part, the length of the side of the design part where the rainwater guide groove is formed from the glass plate end to the inner peripheral side is rainy.
Gara of the design part on the side where the water guide groove is not formed
Longer than the overhang length from the edge of the
Ttei Te, and the change in the difference is either a constant or a difference in height, the height from the glass plate the outer surface of the height and the outer edge of the glass plate outside surface of the design portion of each of the side portions Provided is a vehicle window molding characterized in that the design portion is smaller than a change in height from the outer surface of the glass plate.
In the above-mentioned wind molding, it is preferable that an outer edge portion protrudes in an outer peripheral direction from at least one of the design portion and the base portion, and substantially constitutes a part of at least one of the design portion and the base portion. Further, in the wind molding, it is preferable that at least a part of the design part or the outer edge part is formed of a resin material different from the base part.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a window molding according to the present invention. FIG. 1 is a schematic perspective view showing an example in which a window molding of the present invention is used for a front window of an automobile. 2 to 4 are AA and B in FIG. 1, respectively.
It is an outline sectional view of -B and CC. Wind Mall 1
Is a base 4 fitted in the gap between the glass plate 2 and the vehicle body.
And a design portion 3 provided on the glass plate of the base portion 4 in the vehicle exterior direction, and an outer edge portion 5 protruding from the design portion 3 toward the outer peripheral direction of the glass plate 2. The base 4 has a concave portion for mounting the peripheral portion of the glass plate 2 together with the design portion 3 . The side portion 9 of the molding 1 has a height gradually measured from the outside surface of the glass plate 2 toward the vehicle exterior direction from the corner portion 8 and opens toward the inner peripheral side of the glass plate 2. It has a rain garter 6 to be formed. The height measured from the outer surface of the glass plate is hereinafter simply referred to as the height.

[0014] As is generally Mall shape, in terms of aerodynamic drag reduction, the height h is lower or outer edge of the design portion 35
A so-called flash surface in which the difference between the height of the vehicle and the outer surface of the vehicle body is as small as possible is preferable. Further in terms of appearance design, which is preferably molded inconspicuous by reducing the clearance between the width and malls 1 and car body design part 3. Therefore, the side 9 of the mall 1 attached to the front window
When the rain garter 6 is provided, it is preferable that the upper side portion 7 has a flash surface shape as much as possible and the width of the design portion 3 and the outer edge portion 5 is reduced as much as possible because of the aforementioned aerodynamic resistance and appearance.

On the other hand, it is necessary to increase the height h of the design part 3 in the side part 9 in order to provide the rain garter 6. In this case, it increased only design portion 3, furthermore be projected from the outer surface of the vehicle body exterior surface of the glass plate 2 is aerodynamically undesirable.

In this embodiment, the difference between the height of the surface of the design portion 3 at the side 9 and the height of the outer surface of the vehicle body and the difference between these heights at the upper side 7 are minimized . The shape is such that only the outer surface of the vehicle is lower than the outer surface of the vehicle body.

[0017] In this case, the difference between the height h 'of height h and the outer edge portion 5 of the design portion 3, identically or in the upper side portion 7 and the side edge portion 9, or the design part 3 at least both sides unit High
H is less than the change in h . Former is greater than the latter, not preferable from the viewpoint of a shape which only meaning Takumi unit 3 Te side portions 9 smell protruding from the vehicle body. In particular, when both are the same, the relative height relationship between the design portion 3, the outer edge portion 5, and the outer surface of the vehicle body at the upper side portion 7 and the side side portion 9 becomes the same,
It is most preferable in terms of appearance and also in terms of reducing aerodynamic resistance.

The design part 3 has a corner from the upper side 7.
The groove of the rain garter 6 is gradually extended to the side portion 9 through the
Formed over the glass plate 2 at the inner peripheral end of the design portion 3 toward the inner peripheral side (that is, the groove of the rain garter 6).
Depth) is different at the upper side portion 7 and the side edge portion 9, it is preferable to lengthen the side portion 9 side among them. That is, it is necessary to provide the rain garter 6 on the side 9 and the design 3
The height h of the design part 3 is higher than that of the upper side.
Becomes easy to fall down. In order to prevent this, the projecting length of the inner peripheral edge of the design portion 3 from the edge of the glass plate 2 is
By making the side part 9 longer in cross section, the fitting length of the glass plate, that is , the so-called glass hook
You can extend your bill . In addition, since the groove depth of the rain gutter 6 in the side portion 9 is further increased, rainwater can be discharged more efficiently.

The cross section of the upper side 7 of the molding 1 has a flash surface shape in which the height h of the design portion 3 is made as small as possible, as shown in FIG. The cross-sectional shape of the molding 1 changes continuously at the corner portion 8 through the shape as shown in FIG. The cross-sectional shape of the molding 1 of the side portions 9, as shown in FIG. 4, in order to prevent the scattering by wind pressure of rainwater running on the side of the vehicle, the height of the design part 3 as compared to the upper portion at the same time as
The inner peripheral edge of the design portion 3 projects more toward the inner peripheral side of the glass plate 2 . Furthermore, it has a shape provided with a rain garter 6 for efficiently discharging rainwater downward.

Furthermore the difference between the height h of the height h and the outer edge portion 5 of the meaning Takumi portion 3 'are the same between the upper portion 7 and the side edge portion 9,
By flattening the shape from the design portion 3 to the outer surface of the vehicle body 30 on both sides, the appearance is improved, aerodynamic resistance is reduced, and wind noise is reduced.

The molding 1 of the present invention, Ru can be molded while gradually changing continuously sectional shape by extrusion molding. Therefore, as the resin material forming the molding 1, mainly a thermoplastic resin is suitably used, and more specifically, a soft vinyl chloride resin, an olefin-based resin, a styrene-based resin, and the like are exemplified, but are not limited thereto. Lena had. As specific examples of the urethane sealant or silicon based sealant, or it is also possible to use a resin material having a room temperature fluidity, such as sol-like vinyl chloride resin. In the case of using a thermoplastic resin, after resin is extruded in a heated molten state from a die, also in air is cooled and solidified with water, in the case of using a sealant or sol-like vinyl chloride resin, After being extruded from the die at room temperature, it is cured under conditions suitable for the resin such as heating and humidification.

The extruded structure of the die for molding, insert 1 more provided inside the main body 10 as shown in FIG. 5
It has a single die structure constituted by 1, 12, and 13. The resin material is composed of the plurality of nests 11, 1
It passes through a flow path completely surrounded by 2, 13 and the main body 10, and is extruded to the outside while forming a shape corresponding to the flow path shape. As described above, as an example of manufacturing the molding of the present invention , the entire outer peripheral surface of the flow path of the resin material is made uniform by incorporating all the structures for continuously changing the cross-sectional shape into a single die. Covered. In other words, Mall 1
The entire cross-section or of extruding the entire circumference simultaneously from the die, is a preferred method of producing the molding of the present invention.

The portion usually, when also a shutter for changing the cross-sectional shape to the front of the die provided with a mechanism such as a baffle plate (collectively hereinafter shutter) is that in the same cross-section, is pushed to the shutter In other words, there are a part enclosed and a part opened in the entire circumference of the flow path. Therefore, the resistance is increased in the portion surrounded by the shutter, and the extruded resin material is easily bent and deformed in that direction, and the cross section is formed by being pushed from the side where the resin material is enclosed to the release side. The shape is easily deformed. Furthermore, in order to sudden change shape at the die outlet, or hardly give a stable shape by the viscoelasticity of the resin material, it tends failure of the outer surface is generated by a sudden change of the pruning sectional velocity.

[0024] Therefore, by using the die nest structure as described above, since also the total cross-section of the molding 1 can be pushed out entire circumference at the same time from the die, deformation of the molding cross-defective outer surface Very unlikely to occur. In this case, the length of the resin flow path inside the die is 5 to 100 mm,
More preferably, it is desirable to set it to 10 to 50 mm.
This is because when the flow path is shorter than the above-mentioned length, the shapeability is insufficient, causing a problem that the shape becomes unstable or the surface is defective, and the flow path is shorter than the above-mentioned length. When the length is too long, the pressure loss becomes large, and an excessive pressure is required for resin extrusion, so that any of them is not preferable. Therefore, in the above range, because of the shape memory effect based on the viscoelastic properties of the resin, it can prevent the cross-sectional shape change.

The nests can be independently moved by drive mechanisms 14, 15, 16 attached to the die. The speed and timing of movement of the insert is Ru can be arbitrarily set in accordance with the mall sectional shape. As the driving mechanism, an electric motor, a hydraulic or pneumatic cylinder, a spring mechanism, or the like can be used alone or in combination as appropriate. Among them, at least a mechanism including a motor has an advantage that the moving speed and timing of the nest can be easily set, and is preferably used.

When molding the molding 1 having the shape of the upper side 7, the inserts in the main body 10 are arranged as shown in FIG. 5, and the molding 1 having a flash surface shape as shown in FIG. kill in the adult form. Next, from the corner 8 to the side 9, the insert 11 is gradually raised by the driving device 14, and at the same time, the insert 12 is gradually pushed into the inside of the molding 1 by the driving device 15 as shown in FIG. 6. Thereby, the shape of the molding 1 can be changed from the shape shown in FIG. 2 to the shape shown in FIG.

Subsequently, as shown in FIG. 7, the insert 13 is gradually pushed into the inside of the molding 1 by the driving device 16 to form the rain garter 6 in the molding 1, and FIG.
The shape shown in FIG. 4 can be changed to the shape shown in FIG. Through the above process, finally from the top portion 7 toward the side portion 9 through the corner portion 8 is Mall shape in FIG. 2
The mall that change through the shape shown from a shape shown in FIG. 3 to the shape shown in FIG. 4, cut with continuously extruded formed shape. Conversely, a molding is continuously formed from the side 9 to the upper side 7.
If you form, by moving the insert in the reverse procedure is equally continuous molding.

When the cross section is changed by gradually moving the insert as described above, the cross sectional area naturally changes. Therefore, in order to obtain a predetermined shape not only moving the insert, also extrusion flow rate of the resin material is necessary to change the take-off speed of the molding 1 accordingly. When the molding take-up speed is constant, the extrusion flow rate of the resin material is increased or decreased in accordance with the increase or decrease in the cross-sectional area due to the movement of the insert . If the extrusion rate of the tree fat material is constant, or faster or a slower take-off speed to suit to increase or decrease the cross-sectional area by the movement of the insert. Book
In the example, as a method or extrusion rate of the resin material to vary the take-off speed in accordance with the movement of the insert, by assembling a control system for performing these operations in a single system, it synchronizes these same While using a mechanism that can change.

By the above method and process, the upper side 7
Has a flash surface shape as shown in Fig. 2,
In the side part 9, as shown in FIG. 4, the height of the design part 3 is high, the inner peripheral edge of the design part is larger than the inner peripheral side of the glass plate, has the rain garter 6, and has a fitting length of the glass plate. is long, more of the molding 1 of the relative positional relationship is the same as the shape of the design portion 3 and the outer edge portion 5, cut with continuously extruded formed shape.

FIGS. 8 to 10 show AA and B in FIG. 1, respectively.
It is the schematic sectional drawing which showed another example of -B and CC. The cross section of the upper side portion 7 of the molding 1 has a flash surface shape in which the height h of the design portion 3 is made as small as possible as shown in FIG. The sectional shape of the molding 1 is shown in FIG.
Continuously changed while through shaped like a, it reaches the side portion 9. The sectional shape of the molding 1 at the side 9 is shown in FIG.
As shown in the figure, the height h of the design part 3 is higher than the upper side, and at the same time, the inner peripheral edge of the design part 3 is more protruding toward the inner peripheral side of the glass plate 2. are doing.

In this example, the fitting length of the glass plate, that is, the so-called hanging margin, is the same at the upper side 7 and the side 9. The difference between the height h of the design portion 3 and the height h ′ of the outer edge portion 5 is the same in the upper side portion 7 and the side side portion 9, and the shape from the design portion 3 to the outer surface of the vehicle body in both side portions. By flattening, the appearance is improved, aerodynamic resistance is reduced, and wind noise is reduced.

[0032] The structure of the die for extrusion, a single die structure constituted by a plurality of insert 17, 18 provided on the inside main body 10 as shown in FIG. 11
Am I Do not. These inserts can be arbitrarily moved by drive mechanisms 19 and 20 attached to the die. The insert 17 has a structure in which the insert 17 moves at a certain angle α with respect to a plane perpendicular to the surface of the glass plate 2 fitted into the molding. The value of the angle α is suitably larger than 0 degree and smaller than 45 degrees, and more preferably smaller than 30 degrees.

When the value of α is 0 degrees, that is, when the insert 17 moves along a plane perpendicular to the surface of the glass plate 2 fitted into the molding 1, the slide of the insert 17 causes the inner peripheral end of the design portion 3 to slide. it is unsuitable because it does not change in overhang length from the glass plate 2 ends. Conversely, if greater than the upper chitin is not preferable for the reason that it is easy to occur a gap between the outer edge 5 and the car body.

In addition, the resin flow path which is completely surrounded by the plurality of inserts 17 and 18 and the main body 10, the length of the resin flow path and the driving mechanism are the same as those described above. The same is true.

When molding the molding 1 having the shape of the upper side 7, the nests in the main body 10 are arranged as shown in FIG. 11, and the molding 1 having a flash surface shape as shown in FIG. kill in the adult form. From the corner portion 8 toward the side portion 9 Next, shapes shown by gradually lowered by the driving device 19 to insert 17 as shown in FIG. 12, the shape of the molding 1 from the shape shown in FIG. 8 in FIG. 9 Can be changed to Subsequently, as shown in FIG. 13, the insert 18 is gradually pushed into the inside of the molding 1 by the driving device 20 so that the rain gutter 6 is attached to the molding 1.
Is formed, and can be changed from the shape shown in FIG. 9 to the shape shown in FIG. By the above steps, the molding 1 finally changes its shape from FIG. 8 to FIG. 9 to FIG. 10 from the upper side 7 to the side 9 through the corners.
The, cut in a continuous extrusion formed shape. If this and you formed successively form the molding 1 from the side edge portion 9 toward the upper side portion 7 Conversely, by moving the insert in the reverse procedure is equally continuous molding.

[0036] In the above process, for changing the extrusion flow or take-off speed of the resin in accordance with the movement of the insert is the same as the previous example.

[0037]

According to the present invention, the shape of the molding to be mounted on the vehicle window is such that the difference in height between the design portion and the outer edge portion on each side is as small as possible, so that aerodynamic resistance is reduced. Thus, it is possible to obtain a flash surface shaped vehicle window molding.

Further, according to the present invention, since the overhang of the design portion toward the inner peripheral side of the glass plate is larger at the side portion than at the upper side portion, the groove of the rain gutter provided at the side portion is formed. />-out size Kude, it is possible to realize a more effective drainage function. Further, the overhang of the design portion on the side portion makes it possible to stably mount the molding which has been raised to form the rain gutter on the glass plate.

Of course, since the upper part and the side part of the vehicle window molding according to the present invention are continuously and integrally formed by extrusion, the appearance defect due to the seam when each side is formed separately. It has also been improved from the viewpoint of. Furthermore, according to the extrusion molding method exemplified in the present invention, since the resin material is extruded from the single die having the nested structure to mold the molding, the shape is extremely stable and the defect on the outer surface hardly occurs. You can get a mall.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an example of a glass plate for a vehicle in which a molding of the present invention is mounted on a peripheral portion.

FIG. 2 is a schematic sectional view taken along line AA of FIG. 1;

FIG. 3 is a schematic sectional view taken along line BB of FIG. 1;

FIG. 4 is a schematic sectional view taken along the line CC of FIG. 1;

FIG. 5 is a schematic sectional view showing an example of an extrusion die according to the present invention.

FIG. 6 is a schematic sectional view showing an example of an extrusion die according to the present invention.

FIG. 7 is a schematic sectional view showing an example of an extrusion die according to the present invention.

FIG. 8 is a schematic cross section taken along line AA of FIG. 1;

FIG. 9 is a schematic cross section taken along line BB of FIG. 1;

FIG. 10 is a schematic cross-sectional view taken along line CC of FIG. 1;

FIG. 11 is a schematic sectional view showing an example of an extrusion die according to the present invention.

FIG. 12 is a schematic sectional view showing an example of an extrusion die according to the present invention.

FIG. 13 is a schematic sectional view showing an example of an extrusion die according to the present invention.

[Explanation of symbols]

1: Mall 2: Glass plate 3: Design part 4: Base part 5: Outer edge part 6: Rain gutter 7: Top side part 8: Corner part 9: Side part 10: Die body 11, 12, 13, 17, 18: Nested 14,15,16,19,20: driving Organization

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-213059 (JP, A) JP-A-4-353016 (JP, A) JP-A-5-138714 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) B60J 1/02 111 B60J 1/00

Claims (4)

(57) [Claims] 1. A vehicle window molding mounted on a peripheral portion of a glass plate and interposed between a vehicle body and the glass plate,
In the molding, a part corresponding to a side part and a part corresponding to a corner part of the glass sheet are continuously and integrally formed, and the molding is provided between a peripheral part of the glass sheet and a vehicle body. A base portion to be fitted into the gap formed in the base plate, a design portion provided in the vehicle exterior direction of the glass plate, and an outer edge portion projecting from the design portion toward the outer peripheral direction of the glass plate, The base has at least a recess attached to the periphery of the glass plate, and the height of the design portion gradually changes between at least one side and another side adjacent via the corner. in window molding for a vehicle rainwater guide groove is formed in the design portion of the one side portion, the overhang length toward the inner peripheral side from the glass plate end of the design portion of the rainwater guide groove is side portions formed, Rainwater guide groove
Is the edge of the glass plate of the design part on the side not formed?
It is longer than the overhang length toward the inner circumference side ,
In addition, the difference between the height of the design portion from the outer surface of the glass plate and the height of the outer edge portion from the outer surface of the glass plate at each side is constant, or the change in the difference in the height is the glass of the design portion A window molding for a vehicle, characterized in that the height is smaller than a change in height from an outer surface of the board. 2. The design according to claim 1, wherein the outer edge portion extends from at least one of the design portion and the base portion in an outer peripheral direction, and substantially forms at least a part of at least one of the design portion and the base portion.
4. A wind mall for a vehicle according to claim 1. 3. The vehicle window molding according to claim 1, wherein at least a part of the design portion or the outer edge portion is formed of a resin material different from the base portion. 4. The molding material is formed by using a single die having therein at least one nest forming an opening, changing the shape of the opening by moving the nest, and changing the cross-sectional shape of the molding. The vehicle window molding according to any one of claims 1 to 3, which is manufactured by an extrusion method.