JPS62178454A - Window molding - Google Patents

Abstract

PURPOSE:To prevent rain water from flowing down as well as to prevent wind whiz from occurring by providing a cavity section which expands/contracts accompanied with the coming in and out fluid, at a flap equipped with a molding main body covering a gap between a window glass and a car body panel while forming a groove at halfway the distance to the window glass. CONSTITUTION:When a car is running in the rain, if fluid is introduced into a cavity 16, the cavity 16 expands for making a flap 13 rise so as to form a groove 8 at halfway the distance to a window glass 2. As a result,rain water is gethered into the groove 8 for preventing it from flowing transversely toward a side window. On the other hand, when the car is running in an usual condition, particularly at high speed, if the fluid is discharged out of the cavity 16, the cavity 16 contracts for making the flap 13 lie down so as to strike its tip end into contact with the window glass 2. Accordingly, as a smooth surface is formed, air turbulence is prevented for preventing wind whiz from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a window molding installed between a vehicle window glass and a vehicle body panel.

[Conventional technology]

Fig. 13 is a perspective view of the vehicle, in which 1 is the vehicle body, 2 is a window glass (windshield glass), 3 is a side window (door glass), 4 is a window molding, 5 is a drip molding, and 6 is a roof molding. .

FIG. 14 is a sectional view taken along the line AA in FIG. 13, showing the conventional window molding disclosed in Japanese Utility Model Publication No. 57-54416. The molding 4 forms a groove 8 between the glass 2 and the glass 2 by a projection 4b that protrudes from the molding main body 4a toward the window glass 2 to cover the gap between the window glass 2 and the vehicle body panel (pillar) 7. 9 is an adhesive, and 10 is a dumb rubber.

In the window molding described above, water droplets adhering to the window glass 2 when driving in the rain are collected in the groove 8 and flow down, so that they cross the vehicle body panel (pillar) 7 and flow sideways to the side window 3, blocking the view of the side window 3. This will be prevented.

[Problem that the invention seeks to solve]

However, in such conventional window molding, since the protrusion 4b always has a space between it and the surface of the glass 2, it is possible to prevent rainwater from flowing sideways, but when driving when it is not raining, especially at high speeds under clear skies. When the vehicle is running, air turbulence occurs in this space, which tends to generate wind noise, as well as deteriorating the decorative appearance.

This invention is intended to solve the above-mentioned problems.It prevents rainwater from flowing sideways during rainy days, and also prevents rainwater from flowing sideways during normal driving.
The object of the present invention is to provide a window molding that can prevent air turbulence and wind noise especially when traveling at high speeds, and has excellent decorative properties.

[Means for solving problems]

The present invention includes a molding body that is attached to cover the gap between the window glass and the vehicle body panel, a flap that protrudes from the molding body so as to be able to rise and fall toward the window glass and forms a groove between the window glass and the flap. This is a window molding that is airtightly formed inside and has a cavity that expands and contracts as fluid enters and exits, causing the flap to rise and fall.

[For production]

The window molding of the present invention covers the gap between the window glass and the vehicle body, and is installed so that the flap protrudes toward the window glass.

When fluid is introduced into the cavity when driving in the rain, the cavity expands and causes the flap to stand up. This forms a groove between the flap and the window glass, and the rainwater that flows sideways is collected in this groove and flows down. , side flow to the side window is prevented.

When the fluid in the cavity is drained during normal driving, especially when driving at high speeds, the cavity shrinks and the flap folds down and its tip touches the window glass, creating a smooth surface that creates turbulence in the air. is prevented.

Wind noise is prevented while maintaining an excellent appearance.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings. 1 and 2 are sectional views taken along the line A-A in FIG. 13 showing an embodiment of the present invention, FIG. 3 is a partially enlarged view of FIG. 2, and FIG. 4 is a system diagram; The same reference numerals as in FIG. 14 indicate the same or corresponding parts.

The molding 4 has a resin part fixed to one end of the molding main body 4a.
A flap 1 protrudes undulatingly toward the glass 2 side via 2.
3, a tube 15 is inserted into a cavity 14 formed inside the flap 13, and an airtight cavity 16 is formed inside the tube 15.

The molding body 4a is a long material made by bending a metal plate such as a stainless steel plate, an aluminum plate, or an iron plate into a predetermined cross-sectional shape. Clip 1
A plurality of locking clips 7 are fitted along the longitudinal direction, and the leg portions 17a of the locking clips 17 are elastically engaged with the locking clips 18 fixed to the side portions 7a of the vehicle body panel 7 to hold the molding body 4a. It is designed to be attached to the vehicle body panel 7. 19 is an adhesive material such as an adhesive or double-sided adhesive tape.

The resin portion 11 and the flap 13 are molded from flexible and elastic rubber or soft synthetic resin, and are provided along the entire length of the molding body 4a. The material for the flap 13 may be any material that has rubber-like flexibility and hardness, such as vinyl chloride resin "Sunplain" by Mitsubishi Monsanto Chemical Co., Ltd. or "Sumiflex" by Sumitomo Bakelite Co., Ltd. ” (both trademarks) and other well-known polyolefin resins can be mentioned. The resin part 11 and the flap 13 are connected to the molding main body 4a, the resin part 11. When the cross-sectional shape of the flap 13 etc. is constant, the molding body 4 is formed by composite extrusion molding in synchronization with the bending of the molding body 4a.
a, and when the cross-sectional shape is not constant, the molding body 4a is press-molded,
The resin part 11 and the flap 13 can be injection molded, and each can be fixed and integrated with an adhesive or the like. When the width of the flap 13 is large, a core material 22 such as stainless steel foil may be embedded.

The empty chamber 14 is formed continuously in the longitudinal direction from the base portion 11a, the bottom portion 20, and the regulating portion 21 of the resin portion 11 in a bag shape. A bottom portion 20 constituting the cavity 14 is in close contact with the surface of the glass 2. In order to prevent the flap 13 from opening excessively due to wind pressure, etc. that it receives while driving, the width of the regulating part 21 is set so that it reaches its maximum dimension when the flap 13 stands up and is approximately parallel to the second surface of the glass. preferable. Also, the regulation part 21
has flexibility and can be folded by the constricted portion 12.

Depending on the region of use, a water-repellent layer 23 such as a thin film of polytetrafluoroethylene resin is formed on the surface of the flap 13 and the regulating portion 21 on the groove 8 side in order to prevent it from sticking due to freezing during the cold season. It is desirable to keep it.

The tube 15 is formed from a material that is flexible and stretchable over almost its entire length, and one longitudinal end of the tube 15 is sealed with a sealing part 24, and the other end is open and serves as a guide tube connected to a fluid supply source. 25 are connected. The tube 15 is fixed to the flap 13 and the bottom part 20 by a fixing part 26, and both sides are free.

One end of the guide tube 25 is connected to an exhaust pipe system 29 from the vehicle engine via a pressure booster 27 and a switching valve 28. A suction pipe 30 and a discharge pipe 31 are connected to the switching valve 28, with the suction pipe 30 facing the exhaust gas inlet side and the discharge pipe 31 facing the exhaust gas outlet side. The pressure intensifier 27 has a large piston 34 and a small piston 35 in a large cylinder 32 connected to the switching valve 28 and a small cylinder 33 connected thereto. The guide tube 25 is configured to be selectively connected to the suction pipe 30 or the discharge pipe 31 by a switching valve 28 via a pressure intensifier 27 .

In FIG. 4, one end of the tube 15 is shown shorter than the flap 13, but this changes depending on the shape of the molding 4 and the insect body panel 7, and the one end of the tube 15 is set to protrude longer than the flap 13. Sometimes.

An opaque coating layer 36 is provided on the inner side of the periphery of the window glass 2.
is formed and fixed to the flange portion 7b of the vehicle body panel 7 with an adhesive 9.

Next, the effect will be explained. Under normal conditions, the tube 15 of the molding 4 is contracted and the tip of the flap 13 is in a down position, as shown in FIG. 1, in contact with the glass 2 surface.

When it starts to rain and the driver turns on the wiper drive switch (or when the wiper drive switch is turned on by an automatic raindrop detection sensor (not shown) installed on the car body)
(N), the switching valve 28 electrically connected to the drive signal of the wiper drive switch operates to connect the guide tube 25 to the suction pipe 30 side. Since the suction pipe 30 has its tip facing toward the exhaust gas inlet side, the suction pipe 30 is preloaded (positive pressure) and pushes the large piston 34 of the pressure intensifier 27 toward the small piston 35 side. The fluid therein is placed under a relatively high pressure and is forced into the tube 15 through the guide tube 25.

This injected fluid causes the tube 15 to expand and the cavity 16 to expand, and as a result, the flaps 13 are
4. Stand up as shown in Figure 4. In this state, the water dripping is indicated by the arrow
It is collected in the groove 8 and flows down in the direction of .

Side flow of rainwater is prevented.

When the rain stops, the wiper drive switch is turned OFF, the switching valve 28 electrically connected to the switch OFF signal is switched to the opposite side, and the guide tube 25 is turned off.
and the discharge pipe 31 are connected. Since the tip of the exhaust pipe 31 is provided toward the exhaust gas outlet side, negative pressure is generated in the exhaust pipe 31 and acts to pull the large piston 34 of the pressure intensifier 27. piston 35
moves toward the large piston 34 side, the fluid in the small cylinder 33 is pulled back, the fluid in the tube 15 is pulled back through the guide tube 25, and along with this, the fluid in the tube 15 is pulled back.
shrinks.

In this state, due to the restoring force of the flap 13 itself, the flap 1
3 is turned down toward the surface of the glass 20, and the tip of the flap 13 contacts the surface of the glass 2 again, restoring it to its original state. In this way, a smooth surface is formed from the glass 2 to the molding 4.

Since the airflow flows smoothly in the direction of arrow Y and no turbulence occurs, no wind noise is generated and the decorativeness is not impaired.

In the embodiment described above, the flap 13 is made of a flexible and elastic material and can be raised and lowered through the constriction part 12. Therefore, even when the molding 4 is curved in the longitudinal direction, the flap 13 can be easily moved. can be raised and lowered.

In the above embodiment, the bag-shaped tube 15 is attached to the fixing part 26.
When the tube 15 is fixed to at least the bottom 20 and the inner surface of the flap 13, and both sides of the tube 15 are left free,
As soon as the inside of the cavity 16 becomes negative pressure, it acts to quickly return the flap 13 to its original state, and while the engine is running and the wiper drive switch is OFF, the flap 13 is always kept close to the surface of the glass 2. Since it acts to pull the flap 13 toward the side, no gap is created between the tip of the flap 13 and the surface of the glass 2.

Further, the regulating portion 21 prevents the flap 13 from expanding excessively, and also provides good results in protecting the tube 15 from external influences such as rainwater, dirt, sand, and window washer fluid.

As a modification of the drive device in FIG. 4, there is a gap q 32 between the large cylinder 32 and the small cylinder 33 as shown by the broken line.
a, and pipes 30a, 30 are installed at both ends of the large cylinder 32.
b can be connected and connected only to the suction pipe 30 via the switching valve 28a, so that the switching valve 28 can be omitted. In this case, by switching the switching valve 28a, exhaust gas is introduced into the upper or lower side of the large cylinder 32 to drive the large piston 34.

FIG. 5 is a cross-sectional view of a part of another embodiment, in which the tube 15 is made of a material that expands when fluid is supplied into the cavity 16, but whose outer diameter is less likely to expand (for example, fire extinguishers). When using a pump hose (such as a pump hose), the diameter of the tube 15 is selected so that the flap 13 is approximately parallel to the surface of the glass 2 when the tube 15 is fully expanded. can also be omitted. Even in the case of this embodiment, in order to stably keep the tube 15 in a predetermined position, it is preferable that it is partially fixed to the bottom part 20 and the inner surface of the flap 13 by the fixing part 26, and both sides are left free. , bottom 20
It is also possible to omit this and fix the tube 15 and the surface of the glass 2.

FIG. 6 is a sectional view showing another embodiment, and FIG. 7 is a perspective view of the flap. A plurality of rotating shaft portions 13a are intermittently formed on the flap 13, and are pivotally supported by a bearing portion 4d of the molding body 4a.

As fluid enters and exits the cavity 16, the flap 13 rotates around the rotating shaft portion 13a and rises and falls. This embodiment is suitable for flaps 13 made of a relatively hard and highly rigid material such as polypropylene resin, and for flaps 1:3 in which the rotating shaft portion L3a is relatively linear over its entire length.

FIG. 8 is a sectional view showing still another embodiment, in which a molding 4 consisting of a molding main body 4a and a flap 13 is integrally molded with rubber 11, synthetic resin, etc., and fins 4f formed on leg portions 4e Locking member 1
8a.

FIG. 9 is a sectional view showing still another embodiment.

A bag-shaped cavity 14 is formed integrally with the flap 13, and a sealed cavity 16 is formed inside, and fluid can directly enter and exit the cavity 16.

FIG. 10 and FIG. 11 are cross-sectional views showing still another embodiment, with FIG. 10 showing the state under pressurization and FIG. 11 showing the state under atmospheric pressure or negative pressure. The cavity 14 has a bellows 14a, and a cavity 16 is formed inside. When fluid enters and exits the cavity 16, the bellows 14a expands and contracts, and the flap 13
rises and falls.

FIG. 12 is a partial system diagram showing a drive device in another embodiment. In this embodiment, the guide tube 25 is connected to a cylinder 37, and the piston 38 of the cylinder 37 is always urged by a spring 39 in the direction in which the piston rod 40 protrudes. The tip of the piston rod 40 is
It faces the surface side of an eccentric cam 42 that is integrally fixed to the shaft 41 of the reducer of the wiper drive motor. cylinder 3
A suction boat 43 and a discharge boat 44 are provided at the rear end of the pump 7, and the suction boat 43 is opened to the atmosphere via a check valve 45. On the other hand, the discharge port 44 is similarly connected to the guide tube 25 via a check valve 46. A pressure valve (safety valve) 47 and a fluid relief valve 48 are provided in the middle of the guide tube 25.
The guide tube 25 is designed to discharge fluid to the outside when the pressure of the fluid in the guide tube 25 exceeds a certain level, while the fluid relief valve 48 is designed to always release a very small amount of fluid to the outside. This amount of release is several tens of tens of times the fluid at 1 atm or more that has entered the cavity 16 and the guide tube
It is best to adjust the pressure so that it returns to 1 atm in seconds to several minutes.

In the above drive device, when it starts to rain and the driver turns on the wiper drive switch (including the state where it is turned on by an automatic raindrop detection sensor (not shown)), the wiper drive motor rotates and the shaft of the reducer is turned on. An eccentric cam 42 fixed to 41 rotates and pushes the piston rod 40 against the spring 39. piston rod 40
The piston 38 at the tip compresses the fluid in the cylinder 37, and the compressed fluid passes through the check valve 46, passes through the guide tube 25, and flows into the cavity 16 from the tip of the guide tube 25. After one revolution, the surface of the eccentric cam 42 separates from the tip of the piston rod 40.

At this time, the piston 38 is pushed back to its original position by the spring 39, and when the piston 38 is pushed back, the cylinder 37 is filled with new fluid through the suction boat 43.

When the wiper is in a driving state, the eccentric cam 42 rotates continuously or intermittently, so that fluid is sequentially fed into the cavity 16, causing the flap 13 to rise as the cavity 16 expands. The fluid is continuously fed by the rotation of the eccentric force 1142, but when the pressure exceeds a predetermined value, the fluid is discharged from the pressure valve 47, so that the tube 15 etc. will not be damaged due to overpressure.

On the other hand, when the rain stops, the wiper drive switch is turned to
It becomes FF and the eccentric cam 42 stops rotating.

In this state, the fluid in the cavity 16 and the guide tube 25 is gradually discharged to the outside from the fluid relief valve 48 and begins to return to the atmospheric pressure, and the flap 13 lies down on the surface side of the glass 2 due to the restoring force, and the tip ends. Touch the glass surface again to restore it to its original state.

In the above explanation, the molding 4, the flap 13
, the structure of the cavity 16 and the driving device 1 can be changed.

〔Effect of the invention〕

According to the present invention, the flap is provided on the molding body so that it can be raised and lowered, and the flap is raised and lowered by allowing fluid to enter and exit the cavity.This prevents rainwater from flowing sideways during rainy weather, and also prevents rainwater from flowing sideways during normal driving, especially at high speeds. When driving, it can prevent turbulence and wind noise, and has an excellent appearance.
In addition, the structure is simple and there are few failures.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 show a thirteenth embodiment of the present invention.
A-A sectional view in the figure, Figure 3 is a partially enlarged view of Figure 2, Figure 4 is a partially enlarged view of Figure 2.
The figure is a system diagram, Figures 5-6 and 8-11 are A-A sectional views showing other embodiments, Figure 7 is a perspective view of the flap in Figure 6, and Figure 12 is another embodiment. A system diagram of the drive device in the example, FIG. 13 is a perspective view of the vehicle, and FIG. 14 is a sectional view taken along line AA of a conventional molding. In each figure, the same reference numerals indicate the same or equivalent parts, 2 is the window glass, 4 is the molding, 4a is the molding body, 12 is the constriction, 13 is the flap, 14 is the cavity, 15 is the tube, and 16 is the cavity. , 1, 7, and 18 are locking clips, 2° is a bottom, 21 is a regulating portion, 25 is a guide tube, 27 is a pressure intensifier, 28 is a switching valve, and 29 is an exhaust pipe system. Agent Patent Attorney Naru Yanagihara

Claims (6)

[Claims] (1) A molding body that is attached to cover the gap between the window glass and the vehicle body panel, a flap that protrudes undulatingly from the molding body towards the window glass side and forms a groove between it and the window glass, and the inside of this flap. A window molding that is airtight and has a cavity that expands and contracts as fluid enters and exits, causing the flap to rise and fall. (2) The window molding according to claim 1, wherein the flap has flexibility and elasticity and is provided so that it can be raised and lowered through the constriction. (3) The window molding according to claim 1 or 2, wherein the flap is folded down by the restoring force of the flap itself. (4) The window molding according to any one of claims 1 to 3, wherein the cavity is formed integrally with the flap. (5) The window molding according to any one of claims 1 to 3, wherein the cavity is formed by a tube separate from the flap. (6) The window molding according to any one of claims 1 to 5, wherein fluid enters and exits the cavity in conjunction with the drive of the wiper.