JP2009056893A - Rear door of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear door of a vehicle capable of surely improving the rearward visibility of a driver and manufacturable at low cost. <P>SOLUTION: This rear door comprises a door body having an inner panel 17 and an outer panel 19 with window openings 15, respectively, so joined to each other at a window opening 15 side edge and a panel outer side edge as to form a door inner space 21 and window glass 33 having a peripheral edge so joined to the outer surface of the outer panel 19 as to cover the window opening 15. Extension parts 39, 41 extending from a panel joining part 25 at the window opening 15 side to the window opening 15 side are formed in the inner panel 17 and the outer panel 19, respectively. An air duct 43 along the window opening 15 is constituted of the extension parts 39, 41. An air introduction hole for introducing air into the air duct 43 and an air blowout hole 46 for blowing the air flowing in the air duct 43 against the window glass 33 are formed at the air duct 43. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle back door.

  2. Description of the Related Art Conventionally, the windshield is defrosted by heating the windshield with heat rays attached to the windshield of the vehicle back door.

  Moreover, in order to remove the fogging of the windshield of the back door, air is blown onto the windshield. For example, in Patent Document 1, an air pump and an air blowing nozzle connected to the air pump are accommodated in a space between an outer panel and an inner panel formed below the back window, and formed above the space. The air outlet of the air blowing nozzle is attached to the opening of the back door inner so that air is blown directly onto the windshield of the back door from below.

Conventionally, air has been supplied to the rear of the passenger compartment for air conditioning. For example, in Patent Document 2, an air conditioning unit is arranged in the rear side wall of a passenger compartment, and the air conditioning air generated by the air conditioning unit is passed through a duct formed on the rear side wall and formed above the rear seat. Air is blown out from the outlet to the rear of the passenger compartment.
JP 2002-264781 A Japanese Patent Laid-Open No. 11-301245

  However, in the case where a hot wire is attached to the windshield of the back door, the cost of attaching the hot wire is required. Moreover, a driver | operator's back visual field deteriorates because the heat ray | wire is provided in the windshield of the back door.

  Further, in Patent Document 1 and Patent Document 2, since it is necessary to provide an air generator such as an air pump or a pipe through which air generated by the air generator passes, the manufacturing cost of the back door is increased. Becomes higher.

  Moreover, in patent document 1, since it blows off air to the back window from the air blower outlet attached below the back window, the range in which air is sprayed on a back window becomes a spot. For this reason, the back window of Patent Document 1 does not surely improve the driver's rear view.

  Therefore, the present invention has been made in view of such a point, and an object of the present invention is to provide a vehicle back door that can reliably improve the driver's rear view and can be manufactured at a low cost. It is to provide.

  The invention according to claim 1 is a door body joined at an edge on the window opening side and an edge on the outside of the panel so that the inner panel and the outer panel each having the window opening formed therein have a door interior space, A windshield whose outer peripheral portion is joined to the outer surface of the outer panel so as to cover the window opening, and is a vehicle back door that opens and closes a tailgate portion that is opened at the rear of the vehicle. An extending portion extending from the panel joint portion on the window opening side to the window opening side is formed, and the extending portion forms an air duct along the window opening, and air is supplied to the air duct in the air duct. An air introduction port to be introduced and an air blowout port for blowing air flowing through the air duct toward the wind glass are formed.

  According to a second aspect of the present invention, in the first aspect of the present invention, in the door internal space, an air introduction portion communicating with the air duct via the air introduction port is partitioned on an upper edge side of the window opening, The panel is formed with an opening for introducing air-conditioned air into the air introduction part from the vehicle body side.

  According to a third aspect of the present invention, in the first aspect of the invention, the air duct communicates with the door internal space via the air introduction port, and air is sent to the door internal space toward the air introduction port. An air blowing means is arranged.

  According to the invention of claim 1, an air duct is formed along the window opening by the extending portion, and air is blown toward the windshield from the air outlet formed in the air duct. By appropriately setting the formation range of the air outlet in, air can be blown to a desired range of the window glass. Thereby, a driver | operator's back view can be made favorable reliably.

  Furthermore, since the air duct is formed by the extending portion extending to the window opening side from the panel joint portion located at the window opening side edge portion in the inner panel and the outer panel constituting the door body, it is dedicated to the air conditioning air. Since the window opening peripheral portion can be effectively used without separately providing piping, the structure of the air duct is simple and an inexpensive back door can be obtained.

  According to the second aspect of the present invention, air-conditioned air is introduced into the air introduction part through the opening, and therefore the air-conditioned air of the vehicle is used as the air blown to the window glass. Thereby, it is not necessary to separately provide a device for generating wind glass blowing air, and the device for removing the windshield fogging is inexpensive.

  According to the invention of claim 3, since the air duct communicates with the door interior space via the air introduction port, air in the door interior space flows into the air duct. This eliminates the need for piping for guiding the air-conditioned air of the vehicle, and makes the windshield defogging device inexpensive.

  In addition, since air blowing means for sending air toward the air introduction port is provided, there is no load on the engine as in the case of air-conditioning air generation, and the engine fuel efficiency and output are not adversely affected.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a side view of a vehicle 3 provided with a back door 1 according to a first embodiment of the present invention. A back gate 1 is connected to a tailgate portion 11 opened at the rear of a vehicle body by a pair of left and right damper stays 5 with a hinge member 9. It opens and closes by pivoting up and down as a fulcrum.

  2 is a front view of the back door 1 of FIG. 1 viewed from the rear of the vehicle, FIG. 3 is a cross-sectional view taken along line AA of FIG. 2, and FIG. 4 is a cross-sectional view taken along line BB of FIG. 5 is a front view showing an inner surface of an inner panel 17 to be described later, and FIG. 6 is an enlarged view of a G range shown in FIG.

  As shown in FIGS. 3 and 4, the door body 7 includes a resin inner panel 17 and an outer panel 19 each having a window opening 15 formed therein. The inner panel 17 and the outer panel 19 are joined (adhered) with an adhesive 23 at the edge on the window opening 15 side and the edge on the outside of the panels 17 and 19 so as to have the door internal space 21. 5 indicates a panel joint on the side of the window opening 15, and 27 indicates a panel joint on the outside of the panels 17 and 19. A window opening side groove 26 is formed on the inner surface of the inner panel 17 in the panel joint portion 25 by ribs 29 and 31 protruding toward the outer panel 19, and also on the inner surface of the inner panel 17 in the panel joint portion 27. A panel outer groove 28 is formed by ribs 30 and 32 projecting toward the window, and the adhesive 23 described above is injected into the window opening side groove 26 and the panel outer groove 28, and the inner surface of the inner panel 17 and the outer panel 19. The inner surface is bonded. The outer periphery of the window glass 33 of the outer panel 19 is bonded to the outer periphery of the window opening 15 with an adhesive 35 so that the window opening 15 is covered with the window glass 33.

  The tips of the ribs 29, 30, 31, 32 are not in contact with the inner surface of the outer panel 19 from the viewpoint of facilitating the joining of the inner panel 17 and the outer panel 19. A sealing material 37 is interposed between the tip of the rib 31 on the window opening 15 side and the inner surface of the outer panel 19. Furthermore, in this embodiment, as shown in FIGS. 3 and 4, the position where the periphery of the window glass 33 is bonded to the outer panel 19 (the position of the adhesive 35) overlaps with the panel joint 25 on the window opening 15 side (correspondingly). However, it may be positioned on the side of the window opening 15 or on the opposite side of the window opening 15 from the panel joint 25.

  As shown in FIGS. 3 and 4, the inner panel 17 and the outer panel 19 have extended portions 39 and 41 that extend to the window opening 15 side from the panel joint 25 on the window opening 15 side, respectively. The extending portion 39 and the extending portion 41 face each other in a state of being separated in the vehicle front-rear direction. The extending portions 39 and 41 constitute an air duct 43 (see FIG. 5) along the window opening 15, and the air duct 43 is air-conditioned to the air duct 43 near the center of the upper edge of the window opening 15 of the inner panel 17. An air introduction port 45 for introducing air is formed. The air duct 43 circulates the air-conditioning air clockwise (the E direction shown in FIG. 5) along the window opening 15 with the air introduction port 45 as the uppermost stream, and is a predetermined distance downstream from the air introduction port 45. An air outlet 46 (see FIGS. 4 and 6) is formed in the downstream range 47 of the separated air duct 43 to blow out the conditioned air in the air duct 43 toward the inner surface of the wind glass 33. In the door body 7, the edges of the window openings 15 are formed by the ends of the extending portions 39 and 41 of the panels 17 and 19.

  FIG. 3 shows a cross section of the door body 7 at the periphery of the window opening 15 where the air outlet 46 is not formed. Within this range, the extended portion 39 of the inner panel 17 bends toward the outer panel 19 side. It has a shape, and the distal end of the extending portion 39 extends toward the distal end of the extending portion 41 of the outer panel 19. A step 48 is formed at the tip of the extended portion 39, and the tip of the extended portion 41 is engaged with the step 48. In this engaging portion, the sealing material 50 is interposed between the surface of the stepped portion 48 and the surface of the extending portion 41, thereby ensuring the airtightness of the air duct 43.

  FIG. 4 shows a cross section of the door body 7 at the periphery of the window opening 15 in the lower range 47 where the air outlet 46 is formed. Also in the lower range 47, the extending portion 39 of the inner panel 17 has a shape that bends toward the outer panel 19, but there is a gap between the tip of the extending portion 39 and the tip of the extending portion 41 of the outer panel 19. The air outlet 46 is formed by this gap. Since the air outlet 46 is formed by the gap between the ends of the extending portions 39 and 41 in this way, the air outlet 46 is more open to the window than the joining position of the window glass 33 (position of the adhesive 35). As a result, the conditioned air passing through the air duct 43 is blown out from the air outlet 46 toward the inner surface of the window glass 33. Further, in the lower range 47 of the air duct 43 where the air outlet 46 is formed, a fixed fin 49 that directs the flow of the air-conditioned air in the air duct 43 toward the inner surface of the wind glass 33 is formed on the inner surface of the extending portion 39. The fixed fins 49 are plate-like bodies that extend from the inner surface of the extending portion 39 toward the air outlet 46, and are formed in a plurality at predetermined intervals in the flow direction of the air duct 43 as shown in FIG. .

  7 is a cross-sectional view taken along the line CC of FIG. On the upper edge side of the window opening 15 of the door main body 7, a rear spoiler 51 formed by bulging the upper edge portion of the outer panel 19 to the outside of the vehicle extends across the vicinity of both ends in the vehicle width direction. The rear spoiler 51 has an upper side portion 53 extending obliquely downward toward the vehicle rear side, and then a lower side portion 55 bent at a bent portion 57 and extended toward the vehicle compartment side. A portion 59 extends downward from the folded portion 61, and the inner surface of the upper edge portion of the window glass 33 is bonded to the outer surface of the lower edge portion 59 by an adhesive 63.

  As shown in FIG. 5, an opening 65 is formed near the center in the vehicle width direction on the upper edge side of the window opening 15 of the inner panel 17. As shown in FIG. 7, the opening 65 communicates with the vehicle body side air-conditioning air passage 68 by connecting an expandable / contractible bellows-like connecting pipe 67. A first plate-like wall portion 69 and a second plate-like wall portion 71 that extend toward the inner surface of the outer panel 19 are integrally provided on the inner panel 17. The first and second plate-like wall portions 69 and 71 extend over the upper and lower sides of the door internal space 21 located on the upper edge side of the window opening 15, and as shown in FIG. The second plate-like wall portion 71 is arranged on the vehicle right side of the opening 65, and the first plate-like wall portion 69 and the second plate-like wall portion 71 are arranged in the vehicle left-right direction. Opposite to. Further, a minute gap 73 exists between the tips of the first and second plate-like wall portions 69 and 71 and the inner surface of the outer panel 19 from the viewpoint of facilitating the joining of the inner panel 17 and the outer panel 19.

  The first and second plate-like wall portions 69 and 71 divide an air introduction portion 75 (see FIG. 5) communicating with the air duct 43 through the air introduction port 45 into the door internal space 21, and have a second plate shape. The air inlet 45 is formed at the lower end of the wall 71, and the extended portions 39, 41 of the panels 17, 19 constituting the upstream end of the air duct 43 are connected around the air inlet 45. Has been. The air duct 43 is formed in the extended portion 39 and turns clockwise along the periphery of the window opening 15 from the air introduction port 45 at the lower end of the second plate-like wall portion 71, and then the lower end of the first plate-like wall portion 69. It reaches the left side. As described above, the air duct 43 extends over substantially the entire outer periphery of the window opening 15, but the conditioned air in the air duct 43 is only on the inner surface of the window glass 33 in the lower range 47 where the air outlet 46 is formed. It comes to be blown out.

  In the back door 1 having the above configuration, the air-conditioning air from the air-conditioning air supply device of the vehicle 3 passes through the vehicle body side air-conditioning air passage 68 and the connecting pipe 67 shown in FIG. 75 flows into the air duct 43 from the air inlet 45. The air-conditioned air that has flowed into the air duct 43 flows to the downstream side of the air duct 43 to flow clockwise around the window opening 15 and reaches the lower range 47 where the air outlet 46 is formed. The direction of the flow is changed by the fixed fins 49 and the air is blown from the air outlet 46 toward the inner surface of the wind glass 33. As a result, the fog of the wind glass 33 is removed. As described above, in the present embodiment, the air duct 43 through which the conditioned air flows is formed at the periphery of the window opening 15, and the conditioned air is supplied from the air outlet 46 formed in a predetermined range of the air duct 43 to the wind glass 33. Therefore, the air-conditioning air can be blown to a desired range of the window glass 33 by appropriately setting the formation range of the air outlet 46 in the air duct 43. Thereby, a driver | operator's back view can be made favorable reliably.

  Moreover, since the air duct 43 is comprised by the extension parts 39 and 41 extended in the window opening 15 side rather than the panel junction part 25 located in the window opening 15 side edge part of the panels 17 and 19, it is only for air-conditioning air Therefore, the air duct 43 has a simple structure and an inexpensive back door can be obtained.

  Moreover, since air-conditioning air is used as the air to be blown onto the window glass 33, it is not necessary to provide a vehicle with an air-conditioning air supply device dedicated to blowing the window glass 33.

<Second Embodiment>
Next, the back door in 2nd Embodiment is demonstrated. In the following description, differences from the first embodiment will be mainly described, and portions common to the first embodiment will be described with reference to FIGS.

  FIG. 8 is a front view showing the inner surface of the inner panel 17. Even in the back door in the second embodiment, the air duct 43 along the window opening 15 is constituted by the extending portions 39 and 41. Unlike the embodiment, the air introduction part 75 is formed at a position on the lower right side of the window opening 15, and the air duct 43 rotates clockwise along the periphery of the window opening 15 with the left side of the air introduction part 75 as an upstream end (see FIG. 8). Air is distributed in the F direction shown).

  FIG. 9 is a cross-sectional view of the door main body 7 on the line DD in FIG. 8, and shows a cross section of the door main body 7 at a position where the air introduction portion 75 is formed. In this position, the inner panel 17 has a frame portion 77 extending from the window opening 15 toward the vehicle compartment side, and an inner panel main body portion 79 extending downward from an end portion of the frame portion 77 on the vehicle compartment side. . An extended portion 39 extending toward the window opening 15 is formed at the tip of the frame portion 77. A recess 81 that is recessed toward the passenger compartment is formed in the vicinity of the window opening 15 of the outer panel 19, and the peripheral portion of the window glass 33 is bonded to the outer surface of the recess 81 by an adhesive 83. . And the extension part 41 extended from the said recessed part 81 of the said outer panel 19 to the window opening 15 side is formed, and this extension part 41 and the said extension part 39 are joined.

  FIG. 10 is a perspective view showing the inner surface (door inner space 21 side) of the inner panel 17 at the position where the air introduction part 75 is formed. A third plate-like wall portion 85 and a fourth plate-like wall portion 87 extending from the inner surface to the outer panel 19 side are integrally provided on the extending portion 39 of the frame portion 77, and the third plate-like wall portion 85 The fourth plate-like wall portion 87 faces the fourth plate-like wall portion 87 in a state of being separated in a direction along the outer periphery of the window opening 15.

  The air introduction part 75 is configured by a space between the third plate-like wall part 85 and the fourth plate-like wall part 87, and on the left side of the third and fourth plate-like wall parts 85, 87. The third plate-like wall portion 85 is formed with an air introduction port 45 through which air flows into the air duct 43. Thus, the air inlet 45 is formed in the extending portions 39 and 41 constituting the air duct 43 and communicates with the air duct 43. Further, the fourth plate-like wall portion 87 is formed so that air does not flow into the right air duct 43 from the air introduction portion 75. The air outlet 46 is formed in a range 47 extending from the upstream end (air inlet 45) of the air duct 43 to a downstream side by a predetermined distance. In this range 47, the extended portion 39 is the same as in the first embodiment. , 41 are separated from each other to form an air outlet 46, and a plurality of fixed fins 49 are formed on the inner surface of the extending portion 39 of the inner panel 17 at predetermined intervals in the flow direction of the air duct 43. ing.

  Here, the third and fourth plate-like wall portions 85 and 87 come into contact with the inner surface of the outer panel 19 in a state where the inner panel 17 and the outer panel 19 are joined, and the third and fourth plate-like wall portions 85 and 87 are provided. The outer end of the vehicle has a shape corresponding to the inner surface of the outer panel 19.

  And in the back door of 2nd Embodiment, the blower 89 (air blowing means) is arrange | positioned in the door interior space 21 below the air introduction part 75, and when this blower 89 drives, Air flows through the air introduction part 75 toward the air introduction port 45. As shown in FIG. 9, a motor housing portion 91 that is recessed downward is formed in the frame portion 77 of the inner panel 17, and a motor 93 that drives a blower 89 is disposed in the motor housing portion 91. It is suspended in the door internal space 21 by being connected to a shaft 96 extending from the inside to the door internal space 21. The drive control of the motor 93 is performed by a control device (not shown).

  A blower case 95 for housing the blower 89 is provided integrally with the inner panel 17. The blower case 95 includes two extending portions 97 and 99 that extend from the inner surface of the inner panel 17 to the vehicle outer side (outer panel 19 side), and a connecting portion 101 that connects the ends of the extending portions 97 and 99 on the vehicle outer side. The upper end of the left extending portion 97 is integrally connected to the lower end of the third plate-like wall portion 85, and the upper end of the right extending portion 99 is integrally connected to the lower end of the fourth plate-like wall portion 87. ing.

  Here, the connecting portion 101 of the blower case 95 is in contact with the inner surface of the outer panel 19 in a state where the inner panel 17 and the outer panel 19 are joined, and is similar to the third and fourth plate-like wall portions 85 and 87. The shape corresponding to the inner surface of 19 is exhibited.

  In the back door of the second embodiment having the above configuration, the motor is driven and the blower 89 rotates, whereby the air in the door internal space 21 passes through the inside of the blower case 95 and enters the air introduction portion 75. It flows toward. The air that has flowed into the air introduction portion 75 flows into the air duct 43 from the air introduction port 45, flows clockwise around the window opening 15, and moves toward the downstream side of the air duct 43, so When passing through the formation range 47, the flow direction is changed by the fixed fins 49, and the air is blown out from the air outlet 46 toward the inner surface of the wind glass 33. As a result, fogging of the window glass 33 is removed, and the driver's rear view can be reliably improved. Similarly to the first embodiment, since the air duct 43 is configured by the extended portions 39 and 41 that are part of the panels 17 and 19 and extend from the panel joint portion 25 to the window opening 15 side, The structure of the air duct 43 is simple, and an inexpensive back door 1 can be obtained.

  Further, since the air duct 43 communicates with the door internal space 21 through the air introduction port 75, the air in the door internal space 21 flows into the air duct 43. This eliminates the need for piping for guiding the air-conditioned air of the vehicle, and makes the windshield defogging device inexpensive.

  Further, since the blower 89 for sending air toward the air introduction port 45 is provided, there is no load on the engine as in the case of air-conditioning air generation, and the engine fuel efficiency and output are not adversely affected. Further, even when the air-conditioned air is not supplied into the vehicle interior, the blower 89 can be operated to blow air onto the inner surface of the window glass 33.

1 is a side view of a vehicle including a back door according to a first embodiment of the present invention. It is the front view which looked at the back door of Drawing 1 from the vehicles back. It is the sectional view on the AA line of FIG. FIG. 3 is a sectional view taken along line B-B in FIG. 2. It is a front view which shows the inner surface of the inner panel of the back door in FIG. It is an enlarged view of G range shown in FIG. It is CC sectional view taken on the line of FIG. FIG. 6 is a diagram corresponding to FIG. 5 in the second embodiment. It is the DD sectional view taken on the line of FIG. It is a perspective view which shows the air introduction part vicinity of FIG.

Explanation of symbols

1 backdoor,
11 Tailgate,
15 window opening,
17 Inner panel,
19 Outer panel,
21 Door interior space,
25 Panel joint on the window opening side,
33 Wind glass,
39 Inner panel extension,
41 Extension part of outer panel,
43 Air duct,
45 Air inlet,
46 Air outlet,
65 opening,
75 Air introduction part,
89 Blower (air blowing means).

Claims (3)

A door body joined at an edge on the window opening side and an edge on the outside of the panel so that the inner panel and the outer panel each having the window opening have a door interior space, and so as to cover the window opening. A vehicle back door that includes a window glass joined to the outer surface of the outer panel, and that opens and closes a tailgate that opens at the rear of the vehicle,
The inner panel and the outer panel are formed with an extending portion extending from the panel opening on the window opening side to the window opening side, and the extending portion forms an air duct along the window opening. A back door for a vehicle, wherein an air inlet for introducing air into the air duct and an air outlet for blowing air flowing through the air duct toward a window glass are formed. In the door internal space, an air introduction part communicating with the air duct via the air introduction port is partitioned on the upper edge side of the window opening,
2. The vehicle back door according to claim 1, wherein the inner panel is formed with an opening for introducing conditioned air into the air introduction portion from a vehicle body side. The air duct communicates with the door interior space through the air introduction port,
2. The vehicle back door according to claim 1, wherein a blowing unit that sends air toward the air introduction port is disposed in the door internal space.

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