Outside air introduction mechanism and vehicle using the same

Abstract

To provide an outside air introduction mechanism capable of sufficiently suppressing infiltration of moisture included in the outside air into the inside of a vehicle.SOLUTION: A ventilation mechanism 1, which is an outside air introduction mechanism included in a vehicle V, comprises: a frame body 10 fitted in an open portion of a window part 22; a first plate 11 fitted in the frame body 10; a second plate 12 fitted in the frame body 10 at a position separated from the first plate 11 on the inner side of the vehicle V than the first plate 11 so as to face the first plate 11; and a discharge hole 13 demarcated by a rear edge part of the frame body 10 and a rear edge part of the first plate 11.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an outside air introduction mechanism for introducing outside air into the interior of a vehicle that travels in the front-rear direction, and a vehicle using the same.

Background Art

[0002] Conventionally, there has been an outside air introduction mechanism that is fitted into an opening provided on the side surface of a vehicle body in order to introduce outside air into the interior of a vehicle such as a railway vehicle or an automobile (see, for example, Patent Document 1).

[0003] When using this type of outside air introduction mechanism, there is a problem that moisture contained in outside air such as rainwater passes through the outside air introduction mechanism and enters the interior of the vehicle. Therefore, in the outside air introduction mechanism described in Patent Document 1, a rain gutter is provided below an air filter disposed on the interior side of the vehicle. As a result, the moisture that has entered the outside air introduction mechanism is received by the air filter, then guided to the air filter and reaches the rain gutter, and is discharged to the outside.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the outside air introduction mechanism of Patent Document 1 is configured on the premise of receiving moisture contained in outside air by an air filter. Therefore, when the amount of the moisture exceeds the waterproof performance of the air filter, there is a possibility that the intrusion of the moisture into the interior of the vehicle cannot be sufficiently suppressed.

[0006] In addition, in order to sufficiently suppress the intrusion of moisture even when there is a large amount of moisture, a method of increasing the thickness of the air filter can be considered. However, when such a method is adopted, it becomes difficult for outside air to be introduced due to the thickness of the air filter, and there is a possibility that the introduction of outside air into the vehicle interior cannot be sufficiently performed.

[0007] Moreover, when referring to the outside air introduction mechanism of Patent Document 1 as a mechanism for simply introducing outside air and adopting a structure in which the air filter is omitted, it goes without saying that it is impossible to suppress the intrusion of moisture contained in the outside air into the vehicle interior.

[0008] The present invention has been made in view of the above points, and an object thereof is to provide an outside air introduction mechanism that can sufficiently suppress the intrusion of moisture contained in the outside air into the vehicle interior regardless of the presence or absence of an air filter, the performance of the air filter, etc., and a vehicle using the same.

Means for Solving the Problems

[0009] The outside air introduction mechanism of the present invention is In an outside air introduction mechanism for introducing outside air into the interior of a vehicle that travels in the front-rear direction, a frame body fitted into an installation opening provided on a side surface of the vehicle body of the vehicle, a first plate fitted into the frame body, and a second plate fitted into the frame body so as to face the first plate at a position spaced apart from the first plate on the inner side of the vehicle with respect to the first plate, and a discharge opening that communicates a middle space that is a space between the first plate and the second plate and a space outside the vehicle, the first plate has a plate-shaped first main body portion, a first slit portion provided at a position on the front side of the discharge opening of the first main body portion and extending in the vertical direction, and a first cover portion that covers the first slit portion, the first slit portion communicates the space outside the vehicle and the middle space, the first cover portion is formed to extend from the rear edge portion of the first slit portion toward the front edge of the first slit portion and to be curved or bent so as to be spaced apart from the first main body portion more toward the front side, The second plate has a plate-shaped second main body portion, a second slit portion provided in the second main body portion and extending in the front-rear direction, and a second cover portion covering the second slit portion. The second slit portion communicates the intermediate space with the space inside the vehicle. The second cover portion is characterized in that it extends from the upper edge portion of the second slit portion to a position at least exceeding the lower edge of the second slit portion, and is curved or bent so as to be spaced apart from the second main body portion more on the lower side.

[0010] Thus, in the outside air introduction mechanism of the present invention, the first cover portion is formed in a shape that extends from the rear edge portion to the front edge of the first slit portion and is curved or bent so as to be spaced apart from the first main body portion more on the front side. That is, an opening that opens toward the front side is formed by the tip portion of the first cover portion and the front edge portion of the first slit portion.

[0011] Therefore, when the vehicle travels forward, outside air is naturally introduced from the opening. At this time, the outside air is received by the surface of the first cover portion on the side of the first slit portion and guided to the first slit portion, and then, by passing through the first slit portion, it goes from the front side to the rear side in the traveling direction.

[0012] At the same time, moisture such as rainwater contained in the outside air is first received by the surface of the first cover portion on the side of the first slit portion, and then the surface on the inner side of the vehicle of the rear edge portion of the first slit portion (that is, the surface on the inner side of the vehicle of the first plate portion) is caused to flow toward the rear side (and thus the discharge opening side) by the adjusted outside air flow. As a result, most of the moisture contained in the outside air is discharged from the discharge opening.

[0013] However, a part of the moisture contained in the outside air may, after being received by the surface of the first cover portion on the side of the first slit portion, flow toward the second plate together with the outside air without flowing to the rear edge portion of the first slit portion.

[0014] Therefore, in the outside air introduction mechanism of the present invention, the second slit portion provided in the second plate extends in the front-rear direction, and the second cover portion covering the second slit portion extends from the upper edge portion of the second slit portion to a position beyond the lower edge of the second slit portion and is curved or bent so as to be spaced apart from the second main body portion toward the lower side. That is, an opening that opens only downward is formed by the tip portion of the second cover portion and the lower edge portion of the second slit portion.

[0015] Therefore, the outside air introduced into the intermediate space through the first slit portion is not directly introduced into the vehicle interior through the second slit portion. Among the outside air that has passed through the first slit portion, only the air that has collided with the lower edge portion of the second slit portion and then flowed upward collides with the surface of the second cover portion on the second slit portion side and is then introduced into the vehicle interior. As a result, the moisture that has flowed toward the second plate together with the outside air is received by the lower edge portion of the second slit portion and the surface of the second cover portion on the second slit portion side.

[0016] At this time, since the second cover portion covers the second slit portion that extends in the front-rear direction, the second cover portion itself also extends in the front-rear direction. Therefore, the moisture received by the lower edge portion of the second slit portion and the surface of the second cover portion on the second slit portion side is caused to flow toward the rear side (and thus toward the discharge opening side) by the flow of the outside air rectified by passing through the first slit portion over the second cover portion or the second main body portion provided with the second cover portion. As a result, the moisture that has flowed toward the second plate together with the outside air is also discharged from the discharge opening.

[0017] Therefore, according to the outside air introduction mechanism of the present invention, most of the moisture introduced together with the outside air is discharged by the configuration of the first plate, and the moisture that cannot be discharged and has flowed toward the second plate together with the outside air is also discharged by the configuration of the second plate. As a result, according to the outside air introduction mechanism of the present invention, it is possible to sufficiently suppress the intrusion of moisture contained in the outside air into the vehicle interior regardless of the presence or absence of an air filter and the performance of the air filter.

[0018] In the outside air introduction mechanism of the present invention, The second plate is erected from the lower edge of the second slit portion toward the outside of the vehicle and has a ridge portion extending in the front-rear direction. It is preferable that the tip of the ridge portion faces the surface of the second cover portion on the second slit portion side.

[0019] With this configuration, the moisture that has passed through the first slit portion and has reached the second plate together with the outside air collides with the lower edge of the second slit portion, is then guided to the ridge portion, and is guided to the surface of the second cover portion on the second slit portion side that faces the ridge portion.

[0020] As a result, the outside air (and thus the moisture contained therein) that has collided with the lower edge of the second slit portion flows along the lower edge as it is and flows toward the rear side (and thus the discharge opening), so that it is possible to suppress the outside air from passing through the second slit portion and entering the vehicle interior.

[0021] In the outside air introduction mechanism of the present invention, The first plate has a plurality of the first slit portions and a plurality of the first cover portions provided for each of the first slit portions and covering the first slit portion. It is preferable that the tip portions of the plurality of the first cover portions protrude more toward the outside of the vehicle than the first cover portion located on the front side, with the first cover portion located on the rear side.

[0022] When a plurality of the first slit portions are provided in one outside air introduction mechanism, the first slit portion located on the front side allows the outside air to flow into the vehicle interior more easily, and the first slit portion located on the rear side allows the outside air to flow into the vehicle interior less easily. On the other hand, there is a desire to uniformly introduce the outside air from each of the first slit portions (that is, over the entire area of the outside air introduction mechanism).

[0023] Therefore, when providing a plurality of slit portions (and thus a plurality of corresponding first cover portions), it is preferable that the first cover portion located on the rear side protrudes more toward the outside of the vehicle than the first cover portion located on the front side.

[0024] With such a configuration, it becomes easier to introduce the outside air, which was difficult to introduce with the first cover portion located on the front side with a small protrusion amount, with the first cover portion located on the rear side with a large protrusion amount. As a result, the amount of outside air introduced from the first slit portion on the rear side can be made closer to the amount of outside air introduced from the first slit portion on the front side.

[0025] As a result, the introduction amounts of the outside air from the first slit portions on the front side and the rear side are equalized, so that it becomes easier to uniformly introduce the outside air over the entire outside air introduction mechanism. Consequently, the ventilation efficiency can be improved.

[0026] Further, the vehicle of the present invention is characterized by including any one of the above-described outside air introduction mechanisms.

[0027] Also, in the vehicle of the present invention, a plurality of the outside air introduction mechanisms including a first outside air introduction mechanism and a second outside air introduction mechanism disposed on the rear side of the first outside air introduction mechanism are provided, the first plate of the first outside air introduction mechanism is arranged such that the first cover portion of the first outside air introduction mechanism faces from the rear side to the front side, and it is preferable that the first plate of the second outside air introduction mechanism is arranged so as to be inverted with respect to the first plate of the first outside air introduction mechanism such that the first cover portion of the second outside air introduction mechanism faces from the front side to the rear side.

[0028] Generally, when an outside air introduction mechanism is provided in a vehicle, if an inside air discharge mechanism is not provided together with the outside air introduction mechanism, the air introduced inside the vehicle will stagnate. On the other hand, if an inside air discharge mechanism is provided independently of the outside air introduction mechanism, problems such as increased cost and complexity of the layout may occur.

[0029] Therefore, a first outside air introduction mechanism is arranged on the front side of the vehicle, and a second outside air introduction mechanism is arranged on the rear side. It is preferable that the first plate of the second outside air introduction mechanism has the first cover portion reversed from that of the first outside air introduction mechanism.

[0030] With such a configuration, when the vehicle travels forward, outside air is introduced into the vehicle from the first outside air introduction mechanism located on the front side, and the air inside the vehicle is discharged to the outside of the vehicle from the second outside air introduction mechanism located on the rear side (strictly speaking, the opening facing the rear side formed by the first cover portion of the second outside air introduction mechanism and the edge of the first slit portion) so as to be pushed out by the outside air.

[0031] On the other hand, when the vehicle travels backward, outside air is introduced into the vehicle from the second outside air introduction mechanism located on the rear side, and the air inside the vehicle is discharged to the outside of the vehicle from the first outside air introduction mechanism located on the front side (strictly speaking, the opening facing the front side formed by the first cover portion of the first outside air introduction mechanism and the edge of the first slit portion) so as to be pushed out by the outside air.

[0032] As a result, regardless of whether the vehicle travels forward or backward, outside air is introduced from one of the first outside air introduction mechanism and the second outside air introduction mechanism, and inside air is discharged from the other. Therefore, the air inside the vehicle is ventilated without stagnating. Consequently, the stagnation of the air inside the vehicle can be suppressed.

Brief Description of the Drawings

[0033]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0034] Hereinafter, with reference to the drawings, a vehicle V equipped with a ventilation mechanism 1 (outside air introduction mechanism) according to an embodiment will be described.

[0035] In the following description, the case where the vehicle is a railway vehicle will be described. However, the vehicle to which the outside air introduction mechanism of the present invention is applied is not limited to railway vehicles, and any vehicle that travels in the front-rear direction may be used. Therefore, for example, the outside air introduction mechanism of the present invention may be applied to automobiles such as passenger cars and buses, as well as ships and the like.

[0036] [Schematic Configuration of Vehicle] First, with reference to FIGS. 1 and 2, the schematic configuration of the vehicle V equipped with the ventilation mechanism 1 will be described.

[0037] As shown in Fig. 1, the vehicle V is a railway vehicle that travels back and forth along the laid rails within a predetermined section without reversing the direction of the vehicle V. Therefore, the traveling direction of the vehicle V is switched between forward and backward by the forward journey and the return journey. In the present embodiment, in Figs. 1, 2, 4 to 6, and 8 to 10, the right side of the paper surface is regarded as the front, and the left side is regarded as the rear.

[0038] The vehicle V includes a substantially rectangular vehicle body 2. The vehicle body 2 is provided on its side surface with a plurality of door portions 21 for passengers to get on and off, and window portions 22 (installation openings) provided between the door portions 21. A part of the window portion 22 has a structure that can be opened and closed within a predetermined range in the vertical direction.

[0039] As shown in Fig. 2, a ventilation mechanism 1 is installed in the open portion of the window portion 22 so as to be fitted therein.

[0040] [Configuration of the ventilation mechanism] Next, with reference to Figs. 2 to 7, the configuration of the ventilation mechanism 1 attached to the window portion 22 will be described in detail.

[0041] As shown in Figs. 2 to 4, the ventilation mechanism 1 includes a frame body 10 fitted into the open portion of the window portion 22, a first plate 11 fitted into the frame body 10, a second plate 12 fitted into the frame body 10 so as to face the first plate 11 at a position spaced apart from the first plate 11 on the inner side of the vehicle V with respect to the first plate 11, a discharge hole 13 (discharge opening) defined by the rear edge portion of the frame body 10 and the rear edge portion of the first plate 11, and a plate-shaped air volume adjustment mechanism 14 fitted into the frame body 10 so as to face the second plate 12 at a position spaced apart from the second plate 12 on the inner side of the vehicle V with respect to the second plate 12.

[0042] As shown in Fig. 2, the frame body 10 is configured in a shape along the open portion of the window portion 22 and is fixed to the vehicle body 2 and the window portion 22 on the outer peripheral side.

[0043] As shown in FIGS. 3 and 4, in the ventilation mechanism 1, a first space S1 (intermediate space), which is the space between the first plate 11 and the second plate 12, and the space outside the vehicle V communicate with each other through the discharge hole 13. Further, a second space S2, which is the space between the second plate 12 and the air volume adjustment mechanism 14, and the space inside the vehicle V communicate with each other through a third slit portion 1410 and a fourth slit portion 1420 of the air volume adjustment mechanism 14, which will be described later.

[0044] As shown in FIG. 5, the first plate 11 includes a plate-shaped first main body portion 111, a plurality of first slit portions 112 provided at a position on the front side of the discharge hole 13 of the first main body portion 111 and extending in the vertical direction, and a plurality of first cover portions 113 covering each of the plurality of first slit portions 112.

[0045] The first main body portion 111 is fixed to the frame body 10 at the peripheral edge portion. The first slit portions 112 communicate the space outside the vehicle and the space on the inner side of the vehicle V of the first plate 11. The first cover portions 113 extend from the rear edge portion of the first slit portions 112 toward the front edge of the first slit portions 112 and have a shape that curves so as to be separated from the first main body portion 111 toward the front side.

[0046] In the first plate configured as described above, an opening that opens toward the front side is formed by the tip end portion of the first cover portion 113 and the front edge portion of the first slit portion 112.

[0047] Therefore, when the vehicle V travels forward, as shown by the arrow in FIG. 5, outside air is naturally introduced from the opening. At this time, the outside air is received by the surface of the first cover portion 113 on the first slit portion 112 side and guided to the first slit portion 112, and then passes through the first slit portion 112 and goes from the front side to the rear side in the traveling direction.

[0048] At the same time, moisture such as rainwater contained in the outside air is first received on the surface of the first cover portion 113 on the side of the first slit portion 112, and then the inner surface of the vehicle V on the trailing edge portion of the first slit portion 112 (that is, the inner surface of the vehicle V of the first plate 11) is caused to flow toward the rear side (and thus the side where the discharge hole 13 is located) by the arranged outside air flow. As a result, most of the moisture contained in the outside air is discharged from the discharge hole 13 (see FIG. 4).

[0049] However, a part of the moisture contained in the outside air may flow toward the second plate 12 together with the outside air (see FIG. 4) that heads toward the inside of the vehicle V without flowing to the trailing edge portion of the first slit portion 112 after being received on the surface of the first cover portion 113 on the side of the first slit portion 112.

[0050] Therefore, the ventilation mechanism 1 prevents the moisture contained in the outside air from entering the inside of the vehicle V by devising the structure of the second plate 12 toward which the outside air that has passed through the first plate 11 next heads.

[0051] As shown in FIG. 3, the second plate 12 includes a plate-shaped second main body portion 121, a second slit portion 122 provided in the second main body portion 121 and extending in the front-rear direction, and a second cover portion 123 covering the second slit portion 122.

[0052] The second main body portion 121 is fixed to the frame body 10 at the peripheral edge portion. The second slit portion 122 communicates the first space S1, which is the space between the first plate 11 and the second plate 12, and the second space S2, which is the space between the second plate 12 and the air volume adjustment mechanism 14 (and thus the space inside the vehicle V). The second cover portion 123 extends from the upper edge portion of the second slit portion 122 to at least a position exceeding the lower edge of the second slit portion 122, and has a shape that curves so as to be separated from the second main body portion 121 more toward the lower side.

[0053] In the second plate configured as described above, an opening that opens only downward is formed by the tip portion of the second cover portion 123 and the lower edge portion of the second slit portion 122.

[0054] Therefore, the outside air introduced into the first space S1 through the first slit portion 112 is not directly introduced into the second space S2 (and thus the space inside the vehicle) through the second slit portion 122. Only the outside air that has passed through the first slit portion 112 and flowed upward after colliding with the lower edge portion of the second slit portion 122 is then further guided into the vehicle V after colliding with the surface of the second cover portion 123 on the side of the second slit portion 122.

[0055] As a result, the moisture that has traveled toward the second plate 12 together with the outside air is received by the lower edge portion of the second slit portion 122 and the surface of the second cover portion 123 on the side of the second slit portion 122.

[0056] At this time, since the second cover portion 123 covers the second slit portion 122 that extends in the front-rear direction, the second cover portion 123 itself also extends in the front-rear direction.

[0057] Therefore, the moisture received by the lower edge portion of the second slit portion 122 and the surface of the second cover portion 123 on the side of the second slit portion 122 is caused to flow toward the rear side (and thus the side where the discharge hole 13 is located) by the flow of the outside air adjusted by passing through the first slit portion 112 over the second cover portion 123 or the second main body portion 121 where the second cover portion 123 is provided.

[0058] As a result, the moisture that has traveled toward the second plate 12 together with the outside air is also discharged from the discharge hole 13.

[0059] Therefore, according to the ventilation mechanism 1, most of the moisture introduced together with the outside air is discharged by the configuration of the first plate 11, and the moisture that could not be discharged and has traveled toward the second plate 12 together with the outside air is also discharged by the configuration of the second plate 12. As a result, according to the ventilation mechanism 1, regardless of the presence or absence of an air filter, the performance of the air filter, etc., the intrusion of moisture contained in the outside air into the vehicle V can be sufficiently suppressed.

[0060] Incidentally, in addition to the above-described configuration, in the ventilation mechanism 1, by devising the structure around the second slit portion 122, it is easier to further suppress the intrusion of moisture contained in the outside air into the vehicle V.

[0061] As shown in FIG. 3, in the ventilation mechanism 1, the second plate 12 is erected from the lower edge portion of the second slit portion 122 toward the outside of the vehicle V and has a ridge portion 124 extending in the front-rear direction. The tip of the ridge portion 124 faces the surface of the second cover portion 123 on the side of the second slit portion 122.

[0062] By providing such a ridge portion 124, in the ventilation mechanism 1, the moisture that has passed through the first slit portion 112 and has reached the second plate 12 together with the outside air collides with the lower edge portion of the second slit portion 122 and is then guided to the ridge portion 124 and further guided to the surface of the second cover portion facing the ridge portion 124 on the side of the second slit portion 122.

[0063] As a result, the outside air (and thus the moisture contained therein) that has collided with the lower edge portion of the second slit portion 122 flows directly along the lower edge portion and toward the rear side (and thus the discharge hole 13), so that it is possible to further suppress the outside air from passing through the second slit portion 122 and entering the interior of the vehicle V.

[0064] Note that the second plate of the outside air introduction mechanism of the present invention is not limited to such a configuration, and any configuration may be used as long as it includes a second main body portion, a second slit portion, and a second cover portion. Therefore, it is not always necessary to provide a ridge portion at the lower edge portion of the second slit portion.

[0065] Incidentally, when a plurality of first slit portions 112 are provided as in the ventilation mechanism 1 in the present embodiment, the first slit portion 112 located on the front side allows the outside air to flow into the vehicle V more easily, and the first slit portion 112 located on the rear side allows the outside air to flow into the vehicle V less easily. On the other hand, there is a desire to uniformly introduce the outside air from each first slit portion 112 (that is, over the entire area of the ventilation mechanism 1).

[0066] Therefore, as shown in FIG. 5, in the ventilation mechanism 1 of the present embodiment, when providing a plurality of first slit portions 112 (and thus a plurality of corresponding first cover portions 113), the first cover portion 113 located on the rear side is configured to protrude more toward the outside of the vehicle V than the first cover portion 113 located on the front side. Specifically, the plurality of first cover portions 113 are provided such that the tip ends of the plurality of first cover portions 113 are along the virtual line shown by the two-dot chain line in FIG. 5.

[0067] By configuring it in this way, in the ventilation mechanism 1, the outside air that was difficult to introduce with the first cover portion 113 located on the front side with a small protrusion amount can be easily introduced with the first cover portion 113 located on the rear side with a large protrusion amount. As a result, the amount of outside air introduced from the first slit portion 112 on the rear side can be made close to the amount of outside air introduced from the first slit portion 112 on the front side.

[0068] As a result, the introduction amount of outside air from the first slit portions 112 on the front side and the rear side is made uniform, so that it becomes easier to uniformly introduce outside air over the entire area of the ventilation mechanism 1. Consequently, the ventilation efficiency can be improved.

[0069] Note that the first cover portion of the outside air introduction mechanism of the present invention is not limited to such a configuration, and may have a shape that extends from the trailing edge portion of the first slit portion toward the leading edge of the first slit portion and is curved or bent so as to be spaced apart from the first main body portion more toward the front side.

[0070] For example, when the first slit portion and the first cover portion are sufficiently large, or when the size of the first slit portion is larger toward the rear side, the difference in the amount of outside air introduced depending on the position does not become so large. In such a case, as in the modification shown in FIG. 6, the protrusion amount of the first cover portion 113 may be uniform. In this modification, the same reference numerals are given to the configurations corresponding to the ventilation mechanism 1 of the present embodiment.

[0071] Further, even when the protruding amounts of the plurality of first cover portions are made different, it is not always necessary to provide them such that their tip ends are along a predetermined virtual line as in the present embodiment, and the protruding amounts of the first cover portions may be appropriately adjusted according to the shape of other constituent articles (for example, the size of the slit portion, etc.).

[0072] In addition, the outside air introduction mechanism of the present invention also functions to efficiently suppress the intrusion of moisture contained in the introduced outside air by also serving as the first plate and the second plate. However, if only the uniformization of the introduced outside air is to be achieved, a plurality of first cover portions may be provided on the first plate, and the first cover portion located on the rear side may be configured to protrude more toward the outside of the vehicle than the first cover portion located on the front side. Therefore, the second plate and the air volume adjustment mechanism may be omitted.

[0073] [Structure of the air volume adjustment mechanism] Next, with reference to FIG. 7, the configuration of the air volume adjustment mechanism 14 will be described.

[0074] As shown in FIG. 7, the air volume adjustment mechanism 14 is composed of two plate-like members, a first adjustment plate 141 disposed on the outside of the vehicle V (a position adjacent to the second plate 12; see FIG. 3), and a second adjustment plate 142 disposed on the inside of the vehicle V with respect to the first adjustment plate 141.

[0075] The first adjustment plate 141 is held by the frame body 10 so as not to move from a predetermined position. On the other hand, the second adjustment plate 142 is held by the frame body 10 so as to be movable in the front-rear direction with respect to the first adjustment plate 141.

[0076] The first adjustment plate 141 extends in the vertical direction and has a plurality of third slit portions 1410. Further, the second adjustment plate 142 has a plurality of fourth slit portions 1420 having the same shape, number, and position as the third slit portions 1410.

[0077] The third slit portion 1410 communicates the space on the outer side (i.e., the second space S2) of the vehicle V of the first adjustment plate 141 with the space on the inner side. The fourth slit portion 1420 communicates the space on the outer side of the vehicle V of the second adjustment plate 142 with the space on the inner side.

[0078] As shown in the upper left figure of FIG. 7, when the second adjustment plate 142 is moved so that the third slit portion 1410 of the first adjustment plate 141 and the fourth slit portion 1420 of the second adjustment plate 142 are completely overlapped (fully open state), the outside air introduced through the ventilation mechanism 1 passes through the third slit portion 1410 and the fourth slit portion 1420 and flows into the vehicle V. Also, the air inside the vehicle V passes through the third slit portion 1410 and the fourth slit portion 1420 and is discharged.

[0079] As shown in the upper right figure of FIG. 7, when the second adjustment plate 142 is moved so that the third slit portion 1410 of the first adjustment plate 141 and the fourth slit portion 1420 of the second adjustment plate 142 are shifted by about half in the front-rear direction (50% open state), the outside air introduced through the ventilation mechanism 1 passes through the opening formed by the third slit portion 1410 and the fourth slit portion 1420 and flows into the vehicle V. Also, the air inside the vehicle V passes through the opening formed by the third slit portion 1410 and the fourth slit portion 1420 and is discharged.

[0080] However, in this 50% open state, since half of the third slit portion 1410 of the first adjustment plate 141 is covered by the plate body between the fourth slit portions 1420 of the second adjustment plate 142, the amount of air that can flow through these slit portions is less than that in the fully open state and becomes about half.

[0081] As shown in the lower left figure of Fig. 7, when the second adjustment plate 142 is moved so that the third slit portion 1410 of the first adjustment plate 141 and the fourth slit portion 1420 of the second adjustment plate 142 are offset by about 70% in the front-rear direction (30% open state), the outside air introduced through the ventilation mechanism 1 passes through the opening formed by the third slit portion 1410 and the fourth slit portion 1420 and flows into the interior of the vehicle V. Also, the air inside the vehicle V passes through the opening formed by the third slit portion 1410 and the fourth slit portion 1420 and is discharged.

[0082] However, in this 30% open state, since 70% of the area of the third slit portion 1410 of the first adjustment plate 141 is covered by the plate body between the fourth slit portions 1420 of the second adjustment plate 142, the amount of air that can flow through the slit portion is less than that in the fully open state and is about 30%.

[0083] As shown in the lower right figure of Fig. 7, when the second adjustment plate 142 is moved so that the third slit portion 1410 of the first adjustment plate 141 and the fourth slit portion 1420 of the second adjustment plate 142 are offset by the width of the slit in the front-rear direction (fully closed state), the outside air introduced through the ventilation mechanism 1 collides with the first adjustment plate 141 and the second adjustment plate 142 and cannot flow in and out of the interior of the vehicle V. Also, the air inside the vehicle V collides with the first adjustment plate 141 and the second adjustment plate 142 and cannot be discharged.

[0084] Note that although the ventilation mechanism 1, which is an outside air introduction mechanism, is provided with an air volume adjustment mechanism 14 in this way, the outside air introduction mechanism of the present invention is not limited to such a configuration, and any mechanism may be used as long as it includes a frame body, a first plate, a second plate, and a discharge opening. Therefore, it is not necessary to be provided with an air volume adjustment mechanism.

[0085] Further, in the ventilation mechanism 1, the first adjustment plate 141 and the second adjustment plate 142 are shifted in the front-rear direction to change the area of the opening defined by the slit portions they have, thereby adjusting the amount of air that can pass through. However, the air volume adjustment mechanism of the present invention is not limited to such a configuration, and any mechanism that can adjust the amount of air flowing through is acceptable.

[0086] Therefore, for example, in the present embodiment, the third slit portion 1410 and the fourth slit portion 1420 may be arranged in a plurality in the vertical direction, and the first adjustment plate 141 and the second adjustment plate 142 may be configured to be relatively movable in the vertical direction.

[0087] [Introduction of outside air and discharge of inside air] By the way, as described above, the vehicle V is a railway vehicle and travels back and forth along the laid rails in a predetermined section without reversing the direction of the vehicle V. Therefore, the traveling direction of the vehicle V is switched back and forth between the forward journey and the return journey.

[0088] Therefore, as shown in FIG. 4, when the vehicle V is traveling forward, the traveling direction of the vehicle V (the direction indicated by the arrow in the figure) coincides with the direction of the opening formed by the first slit portion 112 and the first cover portion 113 of the ventilation mechanism 1. Thus, outside air is introduced into the interior of the vehicle V from the ventilation mechanism 1.

[0089] However, when the traveling direction of the vehicle V is switched, the traveling direction of the vehicle V (the direction opposite to the direction indicated by the arrow in the figure) no longer coincides with the direction of the opening formed by the first slit portion 112 and the first cover portion 113 of the ventilation mechanism 1. As a result, outside air is no longer introduced into the interior of the vehicle V from the ventilation mechanism 1.

[0090] In general, when an outside air introduction mechanism is provided in a vehicle, if an inside air discharge mechanism is not provided together with the outside air introduction mechanism, the air introduced inside the vehicle will stagnate. Therefore, even when the traveling direction and the direction of the opening coincide, if the inside air cannot be discharged from the inside of the vehicle V, there is a risk that the outside air cannot be efficiently introduced into the vehicle V.

[0091] Therefore, in the vehicle V, as shown in FIG. 8, on one side of the vehicle body 2 of the vehicle V, a first ventilation mechanism 1A (a ventilation mechanism shown in white in FIG. 8. A first outside air introduction mechanism.) with an opening facing one side is installed, and on the other side, a second ventilation mechanism 1B (a ventilation mechanism shown in black in FIG. 8. A second outside air introduction mechanism.) with an opening facing the other side is installed.

[0092] The first plate 11 of the first ventilation mechanism 1A is arranged such that the first cover portion 113 of the first ventilation mechanism 1A faces from the rear side to the front side. On the other hand, the first plate 11 of the second ventilation mechanism 1B is arranged in a state inverted from the first ventilation mechanism 1A such that the first cover portion 113 of the second ventilation mechanism 1B faces from the front side to the rear side.

[0093] Since the vehicle V is provided with such a first ventilation mechanism 1A and a second ventilation mechanism 1B, as shown in FIG. 8, when the vehicle V travels forward, outside air is introduced into the vehicle V from the first ventilation mechanism 1A located on the front side. At the same time, the air inside the vehicle is discharged to the outside of the vehicle V from the second ventilation mechanism 1B located on the rear side (strictly speaking, the opening facing the rear side formed by the first cover portion 113 of the second ventilation mechanism 1B and the edge of the first slit portion 112) so as to be pushed out by the outside air.

[0094] On the other hand, as shown in FIG. 9, when the vehicle V travels rearward, outside air is introduced into the interior of the vehicle V from the second ventilation mechanism 1B located on the rear side. At the same time, the air inside the vehicle V is discharged to the outside of the vehicle V from the first ventilation mechanism 1A located on the front side (strictly speaking, the opening facing the front side formed by the first cover portion of the first ventilation mechanism 1A and the edge of the first slit portion 112) so as to be pushed out by the outside air.

[0095] As a result, regardless of whether the vehicle V is traveling forward or rearward, outside air is introduced from one of the first ventilation mechanism 1A and the second ventilation mechanism 1B, and inside air is discharged from the other. Therefore, the air inside the vehicle V is ventilated without staying. As a result, it is possible to suppress the stagnation of the air inside the vehicle V.

[0096] For reference, the air flow inside the vehicle V in the case where only the first ventilation mechanism 1A is provided without providing the first ventilation mechanism 1A and the second ventilation mechanism 1B as in the present embodiment will be described. In this description, the components corresponding to the ventilation mechanism 1 of the present embodiment are denoted by the same reference numerals.

[0097] As shown in FIG. 10, when only the first ventilation mechanism 1A is provided in the vehicle V, when the vehicle V travels forward, outside air is introduced into the interior of the vehicle V from the first ventilation mechanism 1A. However, since the outside air is introduced from the front side, the introduced air stays on the rear side inside the vehicle V, and eventually, the rear side inside the vehicle V will start to stagnate.

[0098] To avoid this, an inside air discharge mechanism instead of the second ventilation mechanism 1B must be provided as in the vehicle V of the present embodiment. However, providing an inside air discharge mechanism independently of the first ventilation mechanism 1A may cause problems such as increased cost and complexity of the layout.

[0099] [Other Embodiments] The above has described the illustrated embodiments, but the present invention is not limited to such forms.

[0100] For example, in the above embodiment, as shown in FIG. 2 and the like, the ventilation mechanism 1 which is an outside air introduction mechanism is fitted into the window portion 22 which is an installation opening of the vehicle V. However, the installation opening for fitting the outside air introduction mechanism of the present invention is not limited to such a configuration, and it may be provided on the side surface of the vehicle body of the vehicle. Therefore, for example, instead of a window, a dedicated opening provided separately may be used as the installation opening.

[0101] Also, in the above embodiment, as shown in FIG. 3 and the like, the ventilation mechanism 1 which is an outside air introduction mechanism is configured by a frame body 10, a first plate 11, a second plate 12, a discharge hole 13 which is a discharge opening, and an air volume adjustment mechanism 14. However, the outside air introduction mechanism of the present invention is not limited to such a configuration, and it may be any one that includes a frame body, a first plate, a second plate, and a discharge opening.

[0102] Therefore, for example, a filter layer may be installed so as to cover at least one of the first slit portion of the first plate and the second slit portion of the second plate to suppress the intrusion of dust, pollen, PM2.5, yellow sand, etc. contained in the outside air.

[0103] Also, in the above embodiment, as shown in FIG. 4 and the like, the first cover portion 113 is formed in a shape that curves so as to be separated from the first main body portion 111 toward the front side. Also, as shown in FIG. 3 and the like, the second cover portion 123 is formed in a shape that curves so as to be separated from the second main body portion 121 toward the lower side.

[0104] However, the first cover portion and the second cover portion of the present invention are not limited to such a configuration, and may be in a shape that is separated from the first main body portion or the second main body portion by bending.

[0105] In the above-described embodiment, as shown in FIG. 2, the discharge hole 13, which is the discharge opening, is defined by the rear edge portion of the frame body 10 and the rear edge portion of the first plate 11. However, the discharge opening of the present invention is not limited to such a configuration, and any configuration may be used as long as it allows the intermediate space to communicate with the space outside the vehicle.

[0106] Therefore, for example, a part of the frame body may be formed in a hollow shape, the discharge opening may be formed in the frame body, and the internal space of the frame body may be configured to communicate with the intermediate space.

[0107] In the above-described embodiment, as shown in FIG. 4 and the like, in the ventilation mechanism 1, which is an outside air introduction mechanism, a plurality of first slit portions 112 and a plurality of first cover portions 113 corresponding thereto are provided on the first plate 11. Further, as shown in FIG. 3 and the like, in the ventilation mechanism 1, a plurality of second slit portions 122 and a plurality of second cover portions 123 corresponding thereto are provided on the second plate 12.

[0108] However, the outside air introduction mechanism of the present invention is not limited to such a configuration, and the first plate only needs to have at least one first slit portion and a first cover portion corresponding thereto, and the second plate only needs to have at least one second slit portion and a second cover portion.

[0109] Therefore, for example, only one first slit portion and a first cover portion may be provided on the first plate, or only one second slit portion and a second cover portion may be provided on the second plate. Further, a plurality of cover portions may be provided for one slit portion, or a plurality of slit portions may be covered by one cover portion.

[0110] In the above-described embodiment, as shown in FIGS. 8 and 9 and the like, in a vehicle V having six window portions 22, first ventilation mechanisms 1A, which are outside air introduction mechanisms and inside air introduction mechanisms, are installed on both sides of the front side of the vehicle V, second ventilation mechanisms 1B, which are outside air introduction mechanisms and inside air introduction mechanisms, are installed on both sides of the rear side of the vehicle V, and the first ventilation mechanism 1A is installed on one side of the side surface at the center in the front-rear direction, and the second ventilation mechanism 1B is installed on the other side.

[0111] However, the vehicle V of the present invention is not limited to such a configuration, and an outside air introduction mechanism may be arranged according to the arrangement of other component articles, etc. Therefore, for example, the first outside air introduction mechanism may be installed only on one side of the vehicle side surface, and the second outside air introduction mechanism may be installed only on the other side.

Description of Reference Numerals

[0112] 1... Ventilation mechanism (outside air introduction mechanism), 1A... First ventilation mechanism, 1B... Second ventilation mechanism, 2... Vehicle body, 10... Frame body, 11... First plate, 12... Second plate, 13... Discharge hole (discharge opening), 14... Air volume adjustment mechanism, 21... Door portion, 22... Window portion (installation opening), 111... First main body portion, 112... First slit portion, 113... First cover portion, 121... Second main body portion, 122... Second slit portion, 123... Second cover portion, 124... Ridge portion, 141... First adjustment plate, 142... Second adjustment plate, 1410... Third slit portion, 1420... Fourth slit portion, S1... First space (intermediate space), S2... Second space, V... Vehicle.

Claims

1. In an outside air introduction mechanism for introducing outside air into the interior of a vehicle that travels in the longitudinal direction, a frame body fitted into an installation opening provided on a side surface of the vehicle body of the vehicle, a first plate fitted into the frame body, and a position spaced apart from the first plate on the inner side of the vehicle with respect to the first plate, a second plate fitted into the frame body so as to face the first plate, a discharge opening that communicates a middle space, which is a space between the first plate and the second plate, and a space outside the vehicle, the first plate has a plate-shaped first main body portion, a first slit portion provided at a position on the front side of the discharge opening of the first main body portion and extending in the vertical direction, and a first cover portion that covers the first slit portion, the first slit portion communicates the space outside the vehicle and the middle space, the first cover portion is extended from the rear edge portion of the first slit portion toward the front edge of the first slit portion, and has a shape that curves or bends so as to be spaced apart from the first main body portion toward the front side, the second plate has a plate-shaped second main body portion, a second slit portion provided in the second main body portion and extending in the longitudinal direction, and a second cover portion that covers the second slit portion, the second slit portion communicates the middle space and the space inside the vehicle, the second cover portion is extended from the upper edge portion of the second slit portion to at least a position exceeding the lower edge of the second slit portion, and has a shape that curves or bends so as to be spaced apart from the second main body portion toward the lower side, and is an outside air introduction mechanism characterized by this.

2. In the outside air introduction mechanism according to Claim 1, the second plate has a ridge portion that stands upright from the lower edge portion of the second slit portion toward the outside of the vehicle and extends in the longitudinal direction, and an outside air introduction mechanism characterized in that the tip portion of the ridge portion faces the surface of the second cover portion on the second slit portion side.

3. In the outside air introduction mechanism according to Claim 1 or Claim 2, the first plate has a plurality of the first slit portions and a plurality of the first cover portions provided for each of the first slit portions and covering the first slit portion, and an outside air introduction mechanism characterized in that the tip portions of the plurality of the first cover portions protrude toward the outside of the vehicle more on the first cover portion located on the front side than on the first cover portion located on the rear side.

4. A vehicle characterized by including the outside air introduction mechanism according to any one of Claims 1 to 3.

5. In the vehicle according to claim 4, a plurality of the outside air introduction mechanisms including a first outside air introduction mechanism and a second outside air introduction mechanism disposed on the rear side of the first outside air introduction mechanism are provided, the first plate of the first outside air introduction mechanism is arranged such that the first cover portion of the first outside air introduction mechanism faces from the rear side to the front side, the first plate of the second outside air introduction mechanism is arranged so as to be inverted from the first plate of the first outside air introduction mechanism such that the first cover portion of the second outside air introduction mechanism faces from the front side to the rear side. A vehicle characterized by this.

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