Vehicle door structure

Abstract

To improve the rigidity of a door sash while preventing entry of water from a vehicle rear part upper side corner part of the door sash.SOLUTION: A door sash portion 100 of a vehicle door 1 includes: an outer door sash part 110; an inner door sash part 120 joined to the inner side, in vehicle width direction, of the outer door sash part 110; and an auxiliary bracket 130 extending in the vehicle up-down direction on the vehicle rear side of the door sash portion 100 and joined being sandwiched between the outer door sash part 110 and the inner door sash part 120. The auxiliary bracket 130 is disposed so as to cover a gap GP between the outer door sash part 110 and the inner door sash part 120 in a vehicle rear upper side corner part US of the door sash part 100.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a vehicle door structure.

Background Art

[0002] Generally, for vehicle doors, a door with a sash is widely used, in which a sash surrounding a door glass is attached to the upper part of the vehicle of a door body formed by combining a door outer panel and a door inner panel. In this type of door, in order to prevent intrusion of rainwater or the like from the outside when the door is closed, a weather strip or the like is attached between the sash and the vehicle body. And, by the weather strip adhering between the sash and the vehicle body, intrusion of water droplets or the like from the outside is prevented. Further, the sash is formed by coupling an outer sash and an inner sash. A glass run for slidingly guiding the door glass is formed on the outer sash, and clip attachment holes or the like for attaching a weather strip are formed on the inner sash.

[0003] On the other hand, loads from the door glass, loads when the door is opened and closed, loads at the time of a collision, etc. are transmitted to the vehicle door. And, the members constituting the vehicle door need to have a strength capable of withstanding the transmitted loads.

[0004] Therefore, for example, in Patent Document 1, in a vehicle door, a first frame member (outer sash) having a channel portion for holding the edge of the door glass so as to be movable up and down, and a second frame member (inner sash) having a protruding portion protruding inward of the vehicle with respect to the channel portion of the first frame member are combined to form a pillar sash (door sash). A frame joint portion (bracket) that protrudes upward from a fixing portion to the door panel and is inserted between the first frame member and the second frame member is provided on a bracket for joining the pillar sash and the door panel, thereby a technique for reinforcing the vehicle door frame is disclosed (for example, refer to Patent Document 1).

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2016-55704 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] However, in the configuration using brackets to stiffen the outer sash and inner sash as described in Patent Document 1, there was a risk of rainwater entering through gaps such as those created when the outer sash and inner sash are joined, such as through the rear side sash, door panel, etc. Furthermore, if the outer sash is a member processed by roll molding, there was a risk of rainwater entering through gaps such as those between the outer sash and inner sash at the upper rear corner of the vehicle door.

[0007] Therefore, the present invention has been made in view of the above-mentioned problems, and provides a vehicle door structure that prevents water from entering the door sash from the upper rear corner of the vehicle while improving its rigidity. [Means for solving the problem]

[0008] Embodiment 1; One or more embodiments of the present invention propose a vehicle door structure comprising: an outer door sash portion provided on the upper side of a vehicle door and surrounding a door window portion, forming a glass guide for the door window portion and disposed on the outer side of the door sash portion in the vehicle width direction; an inner door sash portion disposed on the inner side of the door sash portion in the vehicle width direction and coupled to the inner side of the outer door sash portion in the vehicle width direction; and an auxiliary bracket on the rear side of the vehicle of the door sash portion, extending in the vertical direction of the vehicle and sandwiched and coupled between the outer door sash portion and the inner door sash portion, wherein the auxiliary bracket is disposed at the upper rear corner of the door sash portion so as to cover the gap between the outer door sash portion and the inner door sash portion.

[0009] Embodiment 2; One or more embodiments of the present invention propose a vehicle door structure in which an internal space is formed in the vehicle width direction between the joint between the outer door sash portion and the auxiliary bracket, and between the joint between the inner door sash portion and the auxiliary bracket, sandwiched between the auxiliary bracket and the inner door sash portion.

[0010] Embodiment 3; One or more embodiments of the present invention propose a vehicle door structure in which, at the joint between the auxiliary bracket and the outer door sash portion and the inner door sash portion, the spacing between adjacent joints in the vertical direction of the vehicle is narrower on the lower side of the vehicle than the spacing between the door sash portions on the upper side of the vehicle. [Effects of the Invention]

[0011] According to one or more embodiments of the present invention, it is possible to prevent water from entering the door sash from the upper rear corner of the vehicle while improving its rigidity. [Brief explanation of the drawing]

[0012] [Figure 1] This is a schematic diagram showing a vehicle door according to an embodiment of the present invention, viewed from the outside in the vehicle width direction. [Figure 2] This is a diagram showing the RS section shown in Figure 1, enlarged and with the pillar garnish removed, viewed from the outside in the vehicle width direction. [Figure 3] This is a cross-sectional view along line AA shown in Figure 2. [Figure 4] Figure 2 shows the gap that occurs in the US section, and is a configuration diagram viewed from the outside in the vehicle width direction with the pillar garnish and auxiliary bracket removed. [Modes for carrying out the invention]

[0013] The vehicle door 1 according to this embodiment will be described below with reference to Figures 1 to 4. Arrows FR shown in the drawings as appropriate indicate the front (front) of the vehicle V to which the vehicle door 1 is installed, arrow UP indicates the upward direction in a front view, and arrow LH indicates the left direction in a front view. In the following description, when using the directions of up and down, front and back, and left and right, unless otherwise specified, they refer to the up and down direction, the front and back direction in a front view, and the left and right direction in a front view of the vehicle V.

[0014] <Embodiment> The configuration of the vehicle door 1 will be explained using Figures 1 to 4. In the following explanation, the vehicle door 1 mounted on the right side in a front view of the vehicle V will be used as an example.

[0015] <Configuration of vehicle door 1> As shown in Figure 1, the vehicle door 1 is composed of an outer panel portion 10, an inner panel portion 20, a door window portion 30, a weatherstrip portion 40, and a door sash portion 100. Furthermore, a vehicle body (not shown) is located on the inside of the vehicle door 1 in the vehicle width direction.

[0016] (Regarding the outer panel section 10 and the inner panel section 20) The outer panel portion 10 is a plate-shaped member that constitutes the outer panel of the vehicle door 1. The inner panel portion 20 is a plate-shaped member that constitutes the inner panel of the vehicle door 1 and is positioned further inward in the vehicle width direction than the outer panel portion 10. The outer panel portion 10 and the inner panel portion 20 are manufactured by pressing metal plates or the like. The outer panel portion 10 and the inner panel portion 20 are combined with each other and joined by welding or the like at the upper and lower ends in the front and rear directions of the vehicle, creating a space inside the door panel. The outer panel portion 10 and the inner panel portion 20 are also provided with discharge grooves or discharge holes (not shown) to discharge water droplets or the like that have entered the interior to the outside.

[0017] (Regarding the door window section 30) The door window part 30 is a plate-shaped tempered glass that is mounted on the vehicle door 1 so as to be able to move up and down. When the door window part 30 is in the raised state, it closes the door sash part 100 described later. In a side view of the vehicle V, the door window part 30 forms a substantially trapezoid in which its front edge part and rear edge part are formed in accordance with the inclination of the door sash part 100.

[0018] (Regarding the weatherstrip part 40) The weatherstrip part 40 is disposed so as to surround the periphery inside the vehicle width direction of the vehicle door 1 from the inner panel part 20 to the door sash part 100. The weatherstrip part 40 is formed of a soft resin or a rubber material, etc., and is fixed by clips CP or the like fitted into a fitting part CH provided in the door sash part 100.

[0019] (Configuration of the door sash part 100) The door sash part 100 is provided in the upper part of the vehicle of the vehicle door 1 and is provided so as to surround the door window part 30. The door sash part 100 inclines from the joint part with the outer panel part 10 and the inner panel part 20 on the vehicle front side toward the upper part of the vehicle rear side, and has a front door sash part FS that extends toward the vehicle rear side, and a rear door sash part RS that extends in the vehicle vertical direction from the end part on the vehicle rear side of the front door sash part FS toward the joint part with the outer panel part 10 and the inner panel part 20 on the vehicle rear side is formed. Also, as shown in FIG. 2, the door sash part 100 includes an outer door sash part 110, inner door sash parts 120a and 120b, an auxiliary bracket 130, and a pillar garnish part 140. The door sash part 100 is formed by joining the outer door sash part 110, the inner door sash parts 120a and 120b, and the auxiliary bracket 130 by hemming or welding or the like.

[0020] (Regarding the front door sash part FS) The front door sash section FS is formed by joining the outer door sash section 110 and the inner door sash section 120a. The front door sash section FS forms the front and upper parts of the door sash section 100.

[0021] (Regarding the rear door sash RS) The rear door sash section RS is formed by connecting the outer door sash section 110, the inner door sash section 120b, and the auxiliary bracket 130, and a pillar garnish section 140, which will be described later, is provided on the outer side in the vehicle width direction. The rear door sash section RS forms the rear part of the door sash section 100. As shown in Figure 3, the rear door sash RS has an internal space IS formed by the space enclosed by the outer door sash 110 and the inner door sash 120b, or the space enclosed by the auxiliary bracket 130 and the inner door sash 120. Around the internal space IS, the rear door sash RS has a closed cross section formed by the connection of the outer door sash 110, the inner door sash 120b, and the auxiliary bracket 130.

[0022] (Regarding the outer door sash section 110) The outer door sash section 110 is a component processed by roll forming, for example, by bending a long sheet material such as a metal plate in stages to form a predetermined cross-sectional shape. In the outer door sash section 110, for example, the front door sash section FS and the rear door sash section RS are integrally molded. The outer door sash section 110 has a glass guide GG formed therein that guides the raising and lowering of the door window section 30. When the cross section in the vehicle's longitudinal direction is viewed from above the vehicle, the glass guide GG has a roughly U-shape with the front side of the vehicle open. The glass guide GG houses a glass run GR molded from soft resin or rubber material. Furthermore, the inner front edge of the outer door sash portion 110 is fixed to the front edge of the inner door sash portion 120, which will be described later, by hemming or the like. In addition, the outer door sash portion 110 is connected to the auxiliary bracket 130 by welding or the like at the joint portion CS1 provided on the rear side wall of the glass guide GG.

[0023] (Regarding inner door sash sections 120a and 120b) The inner door sash sections 120a and 120b are components made by pressing metal plates or the like. The inner door sash sections 120a and 120b are provided with fitting sections CH for fitting clips CP that secure the weatherstrip 60. The inner door sash section 120a is a component of the front door sash section FS, and the inner door sash section 120b is a component of the rear door sash section RS. The inner door sash portion 120b is fixed at its front end edge to the inner front edge of the vehicle that forms the glass guide GG by hemming or the like. The inner door sash portion 120b has a projection that extends in the vertical direction of the vehicle and has a roughly U-shape extending from the outside in the vehicle width direction to the inside in the vehicle width direction on its front side. Multiple fitting portions CH are provided on the rear side of the inner door sash portion 120b, into which clips CP that fix the weatherstrip portion 40 are fitted. The inner door sash portion 120b is also bent in a roughly L-shape further rear of the vehicle than the fitting portions CH and extends towards the rear of the vehicle. The inner door sash portion 120b is joined to an auxiliary bracket 130, which will be described later, by welding or the like at a joint portion CS2 further rear of the vehicle than the bend.

[0024] (Regarding auxiliary bracket 130) The auxiliary bracket 130 extends vertically along the rear side of the door sash portion 100 and is sandwiched and connected between the outer door sash portion 110 and the inner door sash portion 120. The auxiliary bracket 130 has a roughly L-shape and is made by pressing a metal plate or the like. The auxiliary bracket 130 is also positioned at the upper rear corner US of the door sash portion 100 to cover the gap GP that occurs when the outer door sash portion 110 and the inner door sash portion 120 are connected. Specifically, the auxiliary bracket 130 is joined to the outer door sash portion 110 by welding or the like at a joint portion CS1 provided on the rear side wall of the glass guide GG. Multiple joint portions CS1 are provided on the rear side wall of the glass guide GG in the vertical direction of the vehicle. The auxiliary bracket 130 is bent in a roughly L-shape toward the rear of the vehicle, outward in the vehicle width direction from the joint portion CS1, and is joined to the inner door sash portion 120 by welding or the like at a joint portion CS2. Furthermore, as shown in Figure 2, the spacing between adjacent joint portions CS1 and CS2 in the vertical direction of the vehicle is such that the spacing L2 on the lower side of the vehicle is narrower than the spacing L1 on the upper side of the vehicle of the door sash.

[0025] (Regarding the pillar garnish section 140) The pillar garnish portion 140 is an exterior component made of resin or the like, which is attached to the door sash portion 100 from the outside in the vehicle width direction. The pillar garnish portion 140 is positioned to ensure the aesthetic appearance of the door sash portion 100 and to prevent the components of the door sash portion 100 from being exposed on the outside in the vehicle width direction.

[0026] <Effects and Actions> The operation of the door sash portion 100 of the vehicle door 1 according to this embodiment, which is configured as described above, will be explained with reference to Figures 3 and 4.

[0027] As shown in Figure 3, the door sash section 100 is constructed by interconnecting the outer door sash section 110, the inner door sash section 120b, and the auxiliary bracket 130. Specifically, the inner front edge of the outer door sash portion 110 is fixed to the inner front edge of the inner door sash portion 120b by hemming or the like. The outer door sash portion 110 is also joined to the auxiliary bracket 130 by welding or the like at the joint portion CS1 provided on the rear side wall of the glass guide GG. The inner door sash portion 120b is also joined to the auxiliary bracket 130 at the joint portion CS2 at the rear of the vehicle. The outer door sash portion 110, the inner door sash portion 120b, and the auxiliary bracket 130 are joined together to form a closed cross-section in the door sash portion 100. In the joints CS1 and CS2, as shown in Figure 2, the spacing between adjacent joints in the vehicle's vertical direction is narrower on the lower side (L2) than on the upper side (L1) of the door sash section 100. By increasing the number of welds on the lower side of the vehicle in the joints CS1 and CS2, the mutual tensile strength between, for example, the outer door sash section 110, the inner door sash section 120b, and the auxiliary bracket 130 is improved. Therefore, even when loads such as vibrations are transmitted to the door sash section 100, deformation due to the load is reduced on the lower side of the vehicle of the door sash section 100. In the auxiliary bracket 130, the rigidity of the door sash portion 100 is improved by being sandwiched and connected between the outer door sash portion 110 and the inner door sash portion 120. For example, methods to improve the rigidity of the auxiliary bracket 130 include increasing the thickness of the plate of the auxiliary bracket 130 or forming ribs on the auxiliary bracket 130. In the weatherstrip section 40, the weatherstrip section 40 is positioned at the rear of the vehicle of the glass guide GG, so that the weatherstrip section 40 is located on the outside of the vehicle interior rather than on the inside of the vehicle interior. As a result, constraints within the vehicle interior on the vehicle interior side are reduced, and the cross-section in the vehicle width direction within the vehicle interior becomes larger.

[0028] Furthermore, water droplets may form on the door sash portion 100 due to rainwater, car wash water, condensation caused by temperature changes, etc. Therefore, drainage channels for water droplets are provided in advance. For example, if water droplets enter the internal space IS, they will pass from the internal space IS through the inside of the door panel surrounded by the outer panel portion 10 and the inner panel portion 20, and be discharged to the outside through discharge grooves or discharge holes provided in the outer panel portion 10 and the inner panel portion 20. On the other hand, as shown in Figure 4, when joining the outer door sash portion 110, which is processed by roll forming, and the inner door sash portion 120b, which is made by pressing a metal plate or the like, a gap GP such as a hole is created. In this case, if water enters the gap GP, which is a space different from the internal space IS, it becomes difficult to drain the water, and rust will occur inside. For this reason, the auxiliary bracket 130 is arranged to cover the gap GP so that water does not enter the gap GP, which is a space different from the internal space IS. Specifically, the outer door sash portion 110 and the auxiliary bracket 130 are joined at the joint CS1, and further, the inner door sash portion 120b and the auxiliary bracket 130 are joined at the joint CS2, thereby closing the gap GP. Furthermore, by connecting the outer door sash section 110, the inner door sash section 120b, and the auxiliary bracket 130 to form a closed cross-section, and by narrowing the spacing between the connecting parts in the lower part of the vehicle, the rigidity of the door sash section 100 is improved. Even when loads such as vibrations are transmitted to the door sash section 100, deformation due to the load is reduced, and water ingress from the gap GP and other gaps caused by the deformation is reduced.

[0029] As described above, the vehicle door 1 according to this embodiment is provided on the upper side of the vehicle and surrounds the door window portion 30, and comprises an outer door sash portion 110 disposed on the outer side of the door sash portion 100 in the vehicle width direction, an inner door sash portion 120 disposed on the inner side of the door sash portion 100 in the vehicle width direction and coupled to the inner side of the outer door sash portion 110 in the vehicle width direction, and an auxiliary bracket 130 on the rear side of the vehicle of the door sash portion 100 that extends in the vertical direction of the vehicle and is sandwiched and coupled between the outer door sash portion 110 and the inner door sash portion 120, wherein the auxiliary bracket 130 is disposed at the upper rear corner US of the door sash portion 100 so as to cover the gap between the outer door sash portion 110 and the inner door sash portion 120. In other words, at the upper rear corner US of the door sash section 100, water droplets can be prevented from entering through the gap GP created when the outer door sash section 110, which is a roll-formed component, and the inner door sash section 120, which is a component made by pressing a metal plate, are joined together. This gap GP is covered by the auxiliary bracket 130. Furthermore, the door sash section 100 can achieve high rigidity through the mutual connection of the outer door sash section 110, the inner door sash section 120, and the auxiliary bracket 130. Therefore, it is possible to prevent water from entering from the upper rear corner of the door sash while improving rigidity.

[0030] Furthermore, in the vehicle door 1 according to this embodiment, an internal space IS is formed in the vehicle width direction between the auxiliary bracket 130 and the inner door sash portion 120, between the connecting portion CS1 between the outer door sash portion 110 and the auxiliary bracket 130, and the connecting portion CS2 between the inner door sash portion 120 and the auxiliary bracket 130. In other words, by forming an internal space IS in the inner door sash portion 120, it becomes possible to position the weatherstrip portion 40 on the rear side of the glass guide GG, and furthermore, to position the weatherstrip portion 40 closer to the outside in the vehicle width direction. As a result, the vehicle door 1 can reduce the gap created by the inner door sash portion 120 and the weatherstrip portion 40. Therefore, water ingress from the weatherstrip portion 40 positioned on the inner door sash portion 120 can be reduced. Also, because the weatherstrip portion 40 is positioned on the rear side of the glass guide GG, it is located on the outside of the vehicle interior. As a result, the cross-section in the vehicle width direction inside the interior becomes larger, improving rigidity and thus improving collision performance. Furthermore, the door sash portion 100 is formed by connecting the outer door sash portion 110, the inner door sash portion 120, and the auxiliary bracket 130, forming a closed cross-section, thereby ensuring high rigidity. Therefore, it is possible to prevent water from entering from the upper rear corner of the door sash while improving rigidity.

[0031] Furthermore, in the vehicle door 1 according to this embodiment, at the joint CS1 between the outer door sash portion 110 and the auxiliary bracket 130, and at the joint CS2 between the inner door sash portion 120 and the auxiliary bracket 130, the distance L2 between adjacent joints CS1 and CS2 in the vertical direction of the vehicle is narrower on the lower side of the vehicle than the distance L1 on the upper side of the vehicle. In other words, at the joints CS1 and CS2, the number of welds on the lower side of the vehicle can be increased by narrowing the distance L2 between adjacent joints CS1 and CS2 in the vertical direction of the vehicle. For example, the rigidity of the door sash 100 can be improved by improving the mutual tensile strength of the outer door sash 110, the inner door sash 120b, and the auxiliary bracket 130. Furthermore, by improving the rigidity of the door sash 100, deformation due to loads transmitted to the door sash 100 can be reduced, and water ingress through gaps GP and other gaps caused by deformation can be prevented. Therefore, it is possible to prevent water from entering from the upper rear corner of the door sash while improving rigidity.

[0032] While embodiments of this invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments and includes designs and the like that do not depart from the spirit of this invention. [Explanation of symbols]

[0033] 1; Vehicle door 10; Outer panel section 20; Inner panel section 30; Door window section 100; Door sash section 110; Outer door sash section 120; Inner door sash section 120a; Inner door sash section 120b; Inner door sash section 130; Auxiliary bracket 140; Pillar garnish section CH;Mating hole CP; Fixing pin CS1;Joint part CS2;Joint part GG; Glass Guide FS; Front door sash section GP; gap GR; Glass rail RS; Rear door sash area US; upper rear corner of the vehicle V; Vehicle

Claims

1. In the door sash portion, which is provided on the upper side of the vehicle door and surrounds the door window portion, An outer door sash portion is provided on the outside of the door sash portion in the vehicle width direction, forming a glass guide for the door window portion. An inner door sash portion is disposed on the inside of the door sash portion in the vehicle width direction and is connected to the inside of the outer door sash portion in the vehicle width direction, An auxiliary bracket is provided on the rear side of the door sash portion of the vehicle, extending in the vertical direction of the vehicle and sandwiched and connected between the outer door sash portion and the inner door sash portion. Equipped with, The vehicle door structure is characterized in that the auxiliary bracket is disposed at the upper rear corner of the door sash portion of the vehicle so as to cover the gap between the outer door sash portion and the inner door sash portion.

2. The vehicle door structure according to claim 1, characterized in that an internal space sandwiched between the auxiliary bracket and the inner door sash is formed in the vehicle width direction between the joint between the outer door sash and the auxiliary bracket and the joint between the inner door sash and the auxiliary bracket.

3. The vehicle door structure according to either claim 1 or 2, characterized in that, at the joint between the auxiliary bracket and the outer door sash portion and the inner door sash portion, the spacing between adjacent joints in the vertical direction of the vehicle is narrower on the lower side of the vehicle than the spacing between the door sash portions on the upper side of the vehicle.

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