JPH0583405B2 - - Google Patents

Description

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

[Conventional technology]

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

Figure 14 is A of Figure 13 showing the conventional window molding shown in Utility Model Publication No. 57-54416.
-A sectional view. The molding 4 forms a groove 8 between it and the glass 2 by a protrusion 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 above window molding,
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 are prevented from flowing across the vehicle body panel (pillar) 7 to the side window 3 and blocking the view of the side window 3.

[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 it is difficult to drive when it is not raining, especially under clear skies. When driving at high speeds, air turbulence occurs in this space, which tends to generate wind noise, and
There were problems such as loss of decorativeness.

This invention is intended to solve the above problems.It prevents rainwater from flowing sideways during rainy weather, and also prevents air turbulence and wind noise during normal driving, especially when driving at high speeds. The purpose of the present invention is to provide window moldings that are easy to use and have excellent decorative properties.

[Means for solving problems]

The present invention includes a long molding body that is attached along the gap between the window glass and the vehicle body panel, and a molding body that projects from the molding body toward the window glass and approaches or moves away from the outer surface of the window glass. an elongated flap that can be displaced in a direction in which the flap is moved; and a cavity that is formed in an airtight manner along the longitudinal direction inside the flap and that can be expanded or contracted by the inflow or outflow of fluid; An inflow of fluid from a source causes the flap to expand and move the flap away from the outer surface of the window plate to form a groove, and an outflow of fluid causes the flap to contract and move the flap closer to the outer surface of the window plate. This is a window molding that is characterized by

[Effect]

The window molding of the present invention is installed along the gap between the window glass and the vehicle body so that the flap projects toward the window glass. When fluid is introduced into the cavity when driving in the rain, the cavity expands and moves the flap away from the window glass, thereby forming a groove between the flap and the window glass, and rainwater flowing sideways is collected in this groove. This prevents the water from flowing sideways into the side windows. When the fluid in the cavity is drained during normal driving, especially when driving at high speeds, the cavity shrinks, the flap approaches the window glass, and its tip touches the window glass, forming a smooth surface. Air turbulence is prevented, wind noise is prevented, and a good appearance is maintained.

〔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 is a molding main body 4a.
It has a flap that protrudes from the base 11a of the resin part 11 fixed to one end toward the glass 2 side through the constricted part 12, and approaches or moves away from the outer surface of the window glass 2 to form a groove 8. is beginning to form. 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 and molding a metal plate such as a stainless steel plate, an aluminum plate, or an iron plate into a predetermined cross-sectional shape. A plurality of locking clips 17 are fitted along the longitudinal direction, and the legs 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. The molding body 4a is attached to a 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 flap 13 may be made of any material that has rubber-like flexibility and elasticity;
Examples include the vinyl chloride resin "Sunplain" manufactured by Mitsubishi Monsanto Chemical Co., Ltd., and the same "Sumiflex" manufactured by Sumitomo Bakelite Co., Ltd. (both trademarks), as well as known polyolefin resins. When the cross-sectional shapes of the molding body 4a, the resin part 11, the flap 13, etc. are constant, the resin part 11 and the flap 13 are integrally formed with the molding body 4a by composite extrusion molding in synchronization with the bending of the molding body 4a. In addition, when the cross-sectional shape is not constant, the molding main body 4a can be 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. can. If the width of the flap 13 is large, a core material 22 such as stainless steel foil may be embedded.

The empty space 14 is located between the base 11a and the bottom 20 of the resin part 11.
and the regulating portion 21, and are formed continuously in the longitudinal direction in a bag shape. Bottom part 20 forming empty room 14
is in close contact with the surface of glass 2. In order to prevent the flap 13 from opening excessively due to wind pressure, etc. received while driving, the width of the regulating portion 21 is set so that it reaches its maximum dimension when it becomes substantially parallel to the second surface of the glass when separated from the window glass. It is preferable to Further, the regulating portion 21 has flexibility and can be folded by the constricted portion 12.

On the groove 8 side surface of the flap 13 and the regulating portion 21,
Depending on the area where it is used, it is desirable to form a water-repellent layer 23 such as a thin film of polytetrafluoroethylene resin in order to prevent it from freezing and sticking during the cold season.

The tube 15 is made of 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 connected to a fluid supply source. A guide tube 25 is connected thereto. The tube 15 is fixed to the flap 13 and the bottom part 20 by a fastening 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. An intake pipe 30 and an exhaust pipe 31 are connected to the switching valve 28, with the intake pipe 30 facing toward the exhaust gas inlet side, and the exhaust pipe 31 facing toward 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 an intake pipe 30 or an exhaust pipe 31 via a pressure intensifier 27 and a switching valve 28.

In FIG. 4, one end of the tube 15 is connected to the flap 13.
Although shown shorter, this may vary depending on the shape of the molding 4 and the vehicle body panel 7, and one end of the tube 15 may be set to protrude longer than the flap 13.

An opaque coating layer 36 is formed inside the peripheral portion of the window glass 2, and is fixed to the flange portion 7b of the vehicle body panel 7 with an adhesive 9.

Next, the effect will be explained. Molding 4
Under normal conditions, the tube 15 is contracted as shown in FIG. 1, and the tip of the flap 13 is in close contact with the two surfaces of the glass. When it starts to rain and the driver turns on the wiper drive switch (or the wiper drive switch is turned on by an automatic raindrop detection sensor (not shown) installed on the car body)
2), 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 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 flap 13 separates from the window glass 2 to form the groove 8, as shown in FIGS. . In this state, the water droplets D are collected in the groove 8 in the direction of the arrow X and flow down, thereby preventing rainwater from flowing sideways.

When the rain stops, the wiper drive switch
When the 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 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 inside the exhaust pipe 31 and the large piston 34 of the pressure intensifier 27 is generated.
It acts to pull, and along with this, the small piston 3
5 moves toward the large piston 34 side, the fluid in the small cylinder 33 is pulled back, and the fluid in the tube 15 is pulled back through the guide tube 25.
Along with this, the cavity 16 is reduced in size.

In this state, the flap 13 approaches the surface side of the glass 2 due to the restoring force of the flap 13 itself,
The tip of the flap 13 comes into contact with 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, and the airflow flows smoothly in the direction of the arrow Y without generating turbulence, so that no wind noise is generated and the decorativeness is not impaired.

In the above embodiment, the flap 13 is made of a flexible and elastic material and can be raised and lowered through the constriction 12, so that the molding 4
Even if the flaps 13 are curved in the longitudinal direction, the flaps 13 can be easily moved toward and away from each other.

In the above embodiment, when the bag-shaped tube 15 is fixed to at least the bottom part 20 and the inner surface of the flap 13 by the fixing part 26, and both sides of the tube 15 are left free, the flap 13 is closed at the same time as the inside of the cavity 16 becomes negative pressure. It acts to quickly return to its original state, and while the engine is running and the wiper drive switch is OFF, it acts to always pull the flap 13 toward the surface of the glass 2, so the tip of the flap 13 There is no gap between the surface of the glass 2 and the surface of the glass 2.

Further, the regulating portion 21 prevents the flap 13 from expanding excessively, and prevents the tube 15 from being affected by external influences such as rainwater, dirt, sand, and window washer fluid.
It also gives good results to protect.

As a modification of the drive device in FIG. 4, a partition wall 32a is provided between the large cylinder 32 and the small cylinder 33 as shown by the broken line, pipes 30a and 30b are connected to both ends of the large cylinder 32, and only the suction pulp 30 is switched. The switching valve 28 can be omitted by connecting via the valve 28a. 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.

In the above embodiment, the flap 13 is in a state close to the window glass 2 during normal times as shown in FIG. 1, and when it rains, the flap 13 is separated to form the groove 8. On the other hand, under normal conditions, the flap 13 is separated from the window glass 2 to form a groove 8, as shown in Figs. It may also be placed close to the window glass.

FIG. 5 is a cross-sectional view of a part of another embodiment, in which the tube 15 expands when fluid is supplied to the inside of the cavity 16, but the outer diameter of the tube 15 is made of a material that does not expand easily (for example, When using tube 1 (such as a pump hose)
The tube 15 is arranged so that the flap 13 is almost parallel to the surface of the glass 2 when the tube 5 is fully expanded.
The restricting portion 21 can also be omitted by selecting the diameter of. Even in this embodiment, the bottom 2
It is preferable to partially fix the tube 15 to the inner surface of the tube 15 and the flap 13 with the fixing part 26 and leave both sides free, but it is also possible to omit the bottom part 20 and fix the tube 15 and the surface of the glass 2. be.

FIG. 6 is a sectional view showing another embodiment, and FIG. 7 is a perspective view of the flap. A plurality of rotating shafts 13a are intermittently formed on the flap 13, and are pivotally supported by a bearing portion 4d of the molding main body 4a.
As fluid enters and exits the cavity 16, the flap 13
rotates around the rotating shaft portion 13a to approach and move away. This embodiment is suitable when the flap 13 is made of a relatively hard and highly rigid material such as polypropylene resin, and where the rotating shaft portion 13a of the flap 13 is relatively linear over its entire length.

FIG. 8 is a sectional view showing still another embodiment, showing the molding body 4a and the flap 13.
A molding 4 made of rubber, synthetic resin, etc. is integrally molded, and is locked to the locking member 18a by fins 4f formed on the legs 4e.

FIG. 9 is a sectional view showing still another embodiment, in which a bag-shaped cavity 14 is integrally formed with the flap 13, and a sealed cavity 16 is formed inside. Fluid can flow directly into and out of the

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. Vacant room 14 has bellows 1
4a, and a cavity 16 is formed inside. As fluid flows in and out of the cavity 16, the bellows 14a expands and contracts, causing the flaps 13 to approach and separate.

FIG. 12 is a partial system diagram showing a drive device in another embodiment. In this embodiment, the guide tube 25 is connected to the cylinder 37, and the cylinder 37 is connected to the guide tube 25.
The piston 38 of No. 7 is always biased by a spring 39 in the direction in which the piston rod 40 protrudes. The tip of the piston rod 40 faces toward the surface of an eccentric cam 42 that is integrally fixed to a shaft 41 of a reduction gear of a wiper drive motor. cylinder 3
A suction port 43 and a discharge port 44 are provided at the rear end of the valve 7, and the suction port 43 is connected to the check valve 4.
5 to the atmosphere. 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, and the pressure valve 47 discharges the fluid to the outside when the pressure of the fluid in the guide tube 25 exceeds a certain level. It has become like this,
On the other hand, the fluid relief valve 48 allows a very small amount of fluid to escape to the outside at all times. This amount of relief is the amount of 1
It is best to adjust the pressure so that the fluid at pressure above atmospheric pressure returns to 1 atmosphere within several tens of seconds to several minutes.

In the above drive device, when it starts to rain and the driver turns on the wiper drive switch (including a 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. Eccentric cam 42 fixed to 41
rotates, and the piston rod 40 is moved by the spring 39.
Push in against the The piston 38 at the tip of the piston rod 40 compresses the fluid in the cylinder 37,
The compressed fluid passes through the check valve 46, 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, and at this time the piston 38 is pushed back to its original position by the spring 39. When the piston 38 is pushed back, new fluid flows into the cylinder 37 through the suction port 43. is filled.

When the wiper is in operation, the eccentric cam 42 rotates continuously or intermittently, so that fluid is sequentially pumped into the cavity 16 and as the cavity 16 expands, the flap 13 is separated from the window glass. let Fluid is continuously fed by the rotation of the eccentric cam 42, 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 off 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 atmospheric pressure, causing the flap 13 to lie down on the surface of the glass 2 due to the restoring force and its tip end. Touch the glass surface again to restore it to its original state.

In the above description, the structures of the molding 4, flap 13, cavity 16, drive device, etc. can be changed.

〔Effect of the invention〕

According to the present invention, the flap is provided in the molding body so as to be able to approach and separate from the molding body, and the flap is brought close to the window glass by allowing fluid to enter and exit the cavity.
Or, by separating them to form a groove,
It prevents rainwater from flowing sideways during rainy weather, and also prevents turbulence and wind noise during normal driving, especially when driving at high speeds.It has an excellent appearance, simple structure, and is less likely to break down. Effects can be obtained.

[Brief explanation of the drawing]

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, FIG. 4 is a system diagram, and FIGS. 5-6 8 to 11 are sectional views taken along the line A-A showing other embodiments, and FIG. 7 is a perspective view of the flap in FIG. 6, and FIG.
FIG. 2 is a system diagram of a drive device in another embodiment, FIG. 13 is a perspective view of a vehicle, and FIG. 14 is a cross-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 empty room, 15 is the tube, and 16 is the Hollow portion, 17 and 18 are locking clips,
20 is a bottom part, 21 is a regulating part, 25 is a guide tube, 27 is a pressure booster, 28 is a switching valve, and 29 is an exhaust pipe system.

Claims (1)

[Scope of Claims] 1. A long molding body installed along the gap between the window glass and the vehicle body panel, and a long molding body that protrudes from the molding body toward the window glass side and is attached to the outer surface of the window glass. The flap includes a long flap that can be moved toward or away from the flap, and a cavity that is airtightly formed along the longitudinal direction inside the flap and that can be expanded or contracted by the inflow or outflow of fluid, the cavity. expands with the influx of fluid from the fluid source to form a groove, moving the flap away from the outer surface of the window plate, and contracts with the outflow of fluid to bring the flap closer to the outer surface of the window plate. Window molding characterized by its shape. 2. The window molding according to claim 1, wherein the flap has flexibility and elasticity and is displaceable through the constriction. 3. The window molding according to claim 1 or 2, wherein the flap approaches the outer surface of the window plate due to the restoring force of the flap itself. 4. The window molding according to any one of claims 1 to 3, wherein the cavity is integrally formed 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 the cavity allows fluid to enter and exit in conjunction with the drive of the wiper.