JP2009286306A - Window sash for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a window sash for a vehicle capable of accumulating the water infiltrated in an inner side of a cabin up to a sufficient height and discharging it without being viewed by an occupant while preventing inflow of an external air even when a difference in atmospheric pressure between the outside and the inside of the cabin is large. <P>SOLUTION: A lower sash 11 is integrally equipped with a sash part 21 for slidably supporting window glasses G1, G2 respectively, a drainage path 22 juxtaposed at the inside of the cabin of the sash part 21, and a hollow water storage part 23 disposed at the lower side of the drainage path 22. The window sash comprises a communication part 26 for communicating the sash part 21 with the drainage path 22, a communication hole 27 for communicating the drainage path 22 with the water storage part 23, and a drainage hole 28 formed at the water storage part 23 and opened to the outside of the cabin. The window sash is equipped with a check valve 29 provided with a closable drainage hole 28, blocks flow-in external air through the drainage hole 28, and draining the water stored in the water storage part 23 through the drainage hole 28. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a vehicle window sash.

Conventionally, as a window sash for vehicles, what was indicated, for example in patent documents 1 is known. FIG. 8 is a cross-sectional view showing a vehicle window sash described in Patent Document 1. As shown in FIG. As shown in the figure, a lower frame 90 provided in the vehicle window sash includes a sash portion 91 that slidably supports a plurality of window glasses G1 and G2, and a drainage passage 92 that opens to the outside of the passenger compartment. Integrated. A drain hole 94 communicating between the rail 93 and the drainage passage 92 that guides the window glass G1 on the vehicle interior side of the sash 91 is formed, and a backflow prevention valve 95 that can close the drainage hole 94 is installed. It is worn. As a result, water such as rainwater collected on the rail portion 93 is discharged from the drainage hole 94 to the outside of the vehicle compartment through the drainage passage 92 while opening the backflow prevention valve 95 by its own weight, and the vehicle interior side and vehicle interior side. Inflow of external air (wind) based on the atmospheric pressure difference is blocked by the backflow prevention valve 95.
JP 2006-341822 A

  By the way, in Patent Document 1, there are cases where the above-described functions of the backflow prevention valve 95 cannot be realized when the vehicle is in a severe vehicle environment, for example, during high-speed driving in heavy rain. Specifically, when the closed state of the drain hole 94 by the backflow prevention valve 95 is continued for a long time based on a significant pressure difference between the vehicle interior side and the vehicle interior side, the water that has entered the rail portion 93 during that time By continuing to accumulate without escaping, there is a possibility that it will eventually overflow from the rail portion 93 to the indoor side. In addition, since the rail part 93 (sash part 91) is a part which touches a passenger | crew's eyes, there is a limit in storing water to sufficient height, and even if it can be stored, this water will contact a passenger | crew's eyes. That will make you worried.

  The object of the present invention is to prevent the intrusion of outside air while preventing the intrusion of water entering the passenger compartment without touching the occupant's eyes even when the pressure difference between the passenger compartment outside and the passenger compartment is large. An object of the present invention is to provide a vehicle window sash that can be stored up to a height and discharged.

  In order to solve the above-described problems, the invention according to claim 1 is a sash portion that slidably supports lower end portions of a plurality of window glasses that open and close an opening formed in a vehicle body, and the sash. A drainage channel provided side by side on the interior side of the vehicle compartment, and a hollow water storage unit disposed below the drainage channel, and a communication unit that communicates between the sash portion and the drainage channel; A frame having a communication hole communicating between the drainage channel and the water storage unit, a drainage hole formed in the water storage unit and opening to the outside of the passenger compartment, and the drainage hole being closable. The present invention is provided with a backflow prevention valve capable of preventing the inflow of external air through the water storage section and discharging the water accumulated in the water storage section through the drain hole.

  According to the same configuration, the window glass, the lower end of which is slidably supported by the sash portion, is located on the vehicle interior side of the sash portion by forming a boundary position between the pressure outside the vehicle interior and the interior of the vehicle interior. The pressure inside the vehicle compartment is maintained in the drainage channels arranged side by side or in the water storage portion where the drainage hole is closed by the backflow prevention valve. Then, the water that has entered the sash portion on the vehicle interior side of the window glass is discharged to the drainage channel through the communication portion and to the water storage portion through the communication hole. And when the water of sufficient height accumulates in the said water storage part, this water will be discharged | emitted from the said drain hole against the said backflow prevention valve pushed by external air with the dead weight. In this case, the water storage section can store water up to a sufficient height without touching the occupant's eyes, for example, as in the sash section. Even if it is large, the water accumulated in the water reservoir can be discharged from the drain hole against the backflow prevention valve.

  The invention according to claim 2 is the gist of the vehicle window sash according to claim 1, wherein the communication portion is formed over the entire length in the longitudinal direction between the sash portion and the drainage channel. To do.

  According to this configuration, when the frame is made of an extruded material such as a light metal, the communication portion can be formed at the same time during extrusion molding, and the number of manufacturing steps can be reduced.

  In the present invention, even when there is a large pressure difference between the outside of the passenger compartment and the inner side of the passenger compartment, the water that has entered the passenger compartment is prevented from flowing into the passenger compartment while being sufficiently high without touching the eyes of the passenger. A vehicle window sash that can be stored and discharged can be provided.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 is a front view of the vehicle window sash according to the present embodiment as viewed from the outside of the vehicle. As shown in the figure, the vehicle window sash is formed in a rectangular shape so as to define an opening of a vehicle body (not shown), and has a lower sash 11 and an upper sash 12 as a frame extending in the horizontal direction. And two vertical sashes 13 and 14 extending in the vertical direction. The lower sash 11 and the upper sash 12 are slidably supported at the lower end and the upper end of the two window glasses G1 and G2 that open and close the opening by sliding. In addition, each sash 11-14 consists of extruded materials of light metals, such as an aluminum alloy, for example, and has a fixed cross section fundamentally in a longitudinal direction. For example, both ends of the lower sash 11 are watertightly closed by the vertical sashes 13 and 14.

  Next, the lower sash 11 will be described. 2 is a plan view seen from the direction of arrow A in FIG. 1, and FIGS. 3A and 3B are cross-sectional views taken along lines BB and CC in FIG. 1 (and FIG. 2). is there. As shown in the figure, the lower sash 11 includes a sash portion 21 having an E-shaped cross section that opens upward, a drainage channel 22 arranged in parallel to the interior of the sash portion 21, and the drainage channel 22. A hollow water storage unit 23 disposed on the lower side is integrally provided.

  The sash portion 21 forms a pair of rail portions 21b and 21c each having a U-shaped cross section on the vehicle interior side and the vehicle interior outside with a partition wall 21a erected at the center in the short direction. In addition, as shown in FIG. 2, both the rail parts 21b and 21c are connected via the notch 21d formed in the longitudinal direction center part of the partition 21a. A seal member 15 that is in watertight contact with the mating surfaces of the window glasses G1 and G2 is installed in the notch 21d.

  The rail portions 21b and 21c (the sash portion 21) accommodate a glass run 16 that avoids the seal member 15 and guides the sliding of the window glasses G1 and G2 in an airtight and watertight manner. That is, the lower surfaces of the window glasses G 1 and G 2 are in close contact with the glass run 16 except for the position of the seal member 15. Accordingly, the window glasses G1 and G2 form a boundary position of the atmospheric pressure on the vehicle exterior side and the vehicle interior side in the fully closed state, but the vehicle interior side of the window glass G1 of the rail portion 21b (glass run 16) through the notch 21d. Will allow water to enter.

  Furthermore, the lower sash 11 has a communication portion 26 that communicates in the horizontal direction the lower part of the partition wall 11 a that partitions the sash portion 21 and the drainage channel 22. The communication portion 26 is formed in accordance with the extrusion molding of the lower sash 11 and opens over the entire length in the longitudinal direction. On the other hand, a hole 16a is formed in the lower portion of the side wall of the glass run 16 on the drainage channel 22 side so as to face the communication portion 26. Therefore, the water that has entered the vehicle interior side of the glass run 16 (rail portion 21b) from the window glass G1 can be discharged to the drainage channel 22 through the hole 16a and the communication portion 26. In the fully closed state of the window glasses G1 and G2, the pressure inside the passenger compartment is maintained in the drainage channel 22.

  Further, the lower sash 11 has a communication hole 27 that penetrates the partition wall 11b partitioning between the drainage channel 22 and the water storage part 23 in the height direction and communicates between them. Therefore, the water discharged to the drainage channel 22 can be discharged to the water storage unit 23 through the communication hole 27. In the fully closed state of the window glasses G1 and G2, the water pressure in the vehicle compartment is held in the water storage unit 23. In addition, the water storage part 23 has an internal space with a rectangular cross section, and faces the vehicle compartment outer side in a side wall part 23a that falls downward from the partition wall 21a. Therefore, the internal space of the water storage part 23 is extended to the lower side of the rail part 21b, and the height is also set so that sufficient water can be stored.

  Furthermore, the lower sash 11 has an attachment piece 11c that extends continuously to the bottom wall portion 23b of the water storage portion 23 and extends to the outside of the passenger compartment, and has its distal end bent downward. The lower sash 11 is airtightly and watertightly joined to the portion B of the vehicle body, for example, by an adhesive on the mounting piece 11c, so that the lower side of the lower sash 11 (the bottom wall portion 23b, etc.) It is separated.

  A drainage hole 28 penetrating in the horizontal direction is formed at the lower portion of the side wall 23a, and a backflow prevention valve 29 capable of closing the drainage hole 28 is attached. As shown in FIG. 4, the backflow prevention valve 29 is made of a substantially square resin sheet material, and is adhered to the upper edge of the drainage hole 28 from the outside of the passenger compartment by an adhesive 30 attached to the upper end. ing. That is, the backflow prevention valve 29 is attached to the upper edge portion of the drain hole 28 by cantilever support. And the backflow prevention valve 29 blocks | closes so that the drain hole 28 may be covered from the vehicle interior outer side, and prevents the inflow of external air (wind) through this drain hole 28. Alternatively, the backflow prevention valve 29 opens the drainage hole 28 against the external air by being pushed by the weight of the water when the water is accumulated in the water storage unit 23 to a sufficient height, and the drainage hole 28 is passed through the drainage hole 28. Drain the water.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) In the present embodiment, the window glasses G1 and G2 whose lower end portions are slidably supported by the sash portion 21 are located at the boundary positions of the atmospheric pressure on the vehicle interior side and vehicle interior side. The pressure on the vehicle interior side is maintained in the drainage channel 22 provided in parallel with the vehicle interior and the water storage portion 23 in which the drainage hole 28 is closed by the backflow prevention valve 29. Then, the water that has entered the sash portion 21 (rail portion 21b, glass run 16) on the vehicle interior side of the window glass G1 is discharged to the drainage channel 22 through the communication portion 26 and through the communication hole 27. It is discharged to the water reservoir 23. And when water of sufficient height accumulates in the water storage part 23, this water will be discharged | emitted from the drain hole 28 against the backflow prevention valve 29 pushed by external air with the dead weight. In this case, the water storage unit 23 can store water up to a sufficient height without touching the occupant's eyes, for example, as in the sash unit 21, so that there is a difference in pressure between the outside of the vehicle interior and the interior of the vehicle interior, for example, when traveling at high speed. Even if it is large, the water accumulated in the water reservoir 23 can be discharged from the drain hole 28 against the backflow prevention valve 29.

  (2) In this embodiment, the communication part 26 is formed over the entire length in the longitudinal direction between the sash part 21 and the drainage channel 22 (partition wall 11a), so that the communication part 26 is formed at the time of extrusion molding of the lower sash 11. They can be formed at the same time, and the number of manufacturing steps can be reduced. And cost can be reduced.

  (3) In this embodiment, the backflow prevention valve 29 is a sheet material attached to the upper edge portion of the drain hole 28 by cantilever support from the outside of the passenger compartment, so that the backflow prevention valve 29 is extremely simple. The structure can be reduced, and thus the cost can be reduced. In addition, the backflow prevention valve 29 can be attached to the lower sash 11 (side wall portion 23a) side without performing design deformation as in the conventional embodiment. Moreover, since the backflow prevention valve 29 can be attached to the lower sash 11 very easily, the number of assembling steps can be reduced and the cost can be reduced.

  (4) In this embodiment, the water that has entered the rail portion 21b (glass run 16) on the vehicle interior side of the window glass G1 is quickly discharged to the drainage channel 22 and the like, so that Can be prevented from overflowing and overflowing from the rail portion 21b.

In addition, you may change the said embodiment as follows.
-In the said embodiment, as shown in FIG. 5, even if it moves the wall part 23a of the water storage part 23 to the lower side of the rail part 21b, and keeps it below the drainage channel 22 so that an internal space may not be spread. Good. Alternatively, if there is no design restriction or interference with peripheral members, as shown in FIG. 6, the wall portion 23a of the water storage portion 23 may be moved to the lower side of the rail portion 21c to further expand the internal space. .

  -In the said embodiment, as shown in FIG. 7, at least one part of the bottom wall part 23b of the water storage part 23 faces a vehicle body (B), from the attachment piece 11c, a vehicle body (B), and the bottom wall part 23b. It is also possible to drain into the formed space. In this case, the drain hole 28 may be formed in the bottom wall portion 23b. However, in this case, a space for draining is required between the attachment piece 11c and the vehicle body (B).

  In addition, although not illustrated, for example, an interior space is formed by bringing the vertical wall portion 23c (see FIG. 7) on the indoor side of the water storage portion 23 or the peripheral portion thereof into contact with the vehicle body (B). Alternatively, the water may be drained from the water storage section 23 so that it can be discharged between the mounting piece 11c and the vehicle body (B).

  -In the said embodiment, if there is no restriction | limiting of the designability, you may omit the partition 11a and the upper wall of the drainage channel 22. FIG. That is, you may comprise a communicating part in the aspect which makes both internal space of the rail part 21b and the drainage channel 22 continue.

-In the said embodiment, although the number of the communicating holes 27 is arbitrary, it is preferable to arrange two or more in the longitudinal direction.
In the embodiment, a plurality of sets of drain holes 28 and backflow prevention valves 29 may be provided.

In the above-described embodiment, the backflow prevention valve 29 may be attached to the side edge of the drain hole 28, for example.
-In the said embodiment, the structure of the backflow prevention valve 29 is an example, You may employ | adopt the appropriate pressure control valve which has the same function.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
In the vehicle window sash according to claim 1 or 2,
The vehicle window sash is characterized in that the backflow prevention valve is a seat material attached to the edge of the drainage hole by cantilever support from the outside of the passenger compartment. According to this configuration, the backflow prevention valve can have a very simple structure.

The front view which shows one Embodiment of this invention. The top view seen from the arrow A direction of FIG. (A) and (b) are sectional drawings along the AA line and BB line of FIG. The perspective view which shows a backflow prevention valve. Sectional drawing which shows the deformation | transformation form of this invention. Sectional drawing which shows the deformation | transformation form of this invention. Sectional drawing which shows the deformation | transformation form of this invention. Sectional drawing which shows a prior art form.

Explanation of symbols

  G1, G2 ... window glass, 11 ... lower sash (frame), 21 ... sash part, 22 ... drainage channel, 23 ... water storage part, 26 ... communication part, 27 ... communication hole, 28 ... drainage hole, 29 ... backflow prevention valve .

Claims (2)

A sash portion that slidably supports lower end portions of a plurality of window glasses that open and close an opening formed in the vehicle body, a drainage channel provided in parallel to the vehicle interior side of the sash unit, and the drainage channel A hollow water storage portion arranged on the lower side, a communication portion communicating between the sash portion and the drainage channel, a communication hole communicating between the drainage channel and the water storage portion, and A frame having a drainage hole formed in the water reservoir and opening to the outside of the vehicle compartment;
The drainage hole is provided so as to be able to be closed, and includes a backflow prevention valve capable of blocking the inflow of external air through the drainage hole and discharging water accumulated in the water reservoir through the drainage hole. The window sash for vehicles characterized by this. The vehicle window sash according to claim 1,
The vehicle window sash, wherein the communication portion is formed over the entire length in the longitudinal direction between the sash portion and the drainage channel.

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