JP6485247B2 - Vehicle door - Google Patents

Description

  The present invention relates to a vehicle door having a built-in sensor for deploying an airbag in a side collision.

  A vehicle may deploy an air bag to protect an occupant when the vehicle collides or when the vehicle collides. According to the collision detection device and the occupant protection system described in Patent Document 1, in the case of a side collision, the airbag is deployed based on information detected by an acceleration sensor and a pressure sensor mounted on the vehicle. In a system using an acceleration sensor, the speed change amount of the vehicle body is calculated and obtained based on the acceleration of the vehicle body. The pressure sensor detects a pressure in a space formed by an outer panel and an inner panel of a door installed on a side portion of the vehicle.

  In Patent Document 1, in order to improve collision determination accuracy, it is necessary to deploy an airbag, or pressure and pressure gradient detected by a pressure sensor installed in a space between an outer panel and an inner panel Whether or not a collision has occurred is determined based on the acceleration detected by the acceleration sensor.

JP 2014-046862 A

  By the way, the door installed in the side part of a vehicle has the door glass integrated so that pulling in was possible between the outer panel and the inner panel, and a passenger | crew can open and close a door glass freely. Therefore, it is also assumed that a side collision occurs with the door glass opened.

  The pressure sensor described in Patent Document 1 is attached to an inner panel facing the outer panel side. Since the air staying in the space between the outer panel and the inner panel is a so-called compressive fluid, the pressure in the space becomes higher around the part where the collision occurs due to the side collision and gradually propagates to the surroundings. Therefore, when the door glass is opened, that is, when the door glass drawn into the door is disposed between the outer panel and the inner panel, the pressure wave generated by the collision propagates around the door glass, Reach the sensor. As a result, it takes time until the pressure change due to the collision is detected by the pressure sensor, and the pressure change that can be detected becomes small, and the reaction for deploying the airbag is delayed.

  Therefore, the present invention provides a vehicle door that does not cause a difference in detection performance depending on the position of the door glass when a pressure change is detected by a pressure sensor.

  A vehicle door according to an embodiment of the present invention is a vehicle door in which a movable door glass is incorporated so as to be retractable between an outer panel and an inner panel, and includes a pressing portion, a notch, and a pressure sensor. . The pressing portion is disposed between the outer panel and the door glass and presses the door glass drawn between the outer panel and the inner panel toward the inside of the vehicle when a side collision occurs. The notch is provided at the edge of the door glass that is drawn between the outer panel and the inner panel, and serves as a starting point for crushing the door glass when the door glass is pressed against the pressing portion at the time of a side collision. The pressure sensor is attached to the inner panel and detects a pressure wave generated from the outer panel at the time of a side collision.

  At this time, a press part is arrange | positioned in the range before the edge of a door glass exceeds a pressure sensor in the direction in which a door glass is drawn between an outer panel and an inner panel. The pressing portion is arranged on a locus along which the notch moves when the door glass is drawn between the outer panel and the inner panel. The pressing portion is fixed to a reinforcing member that is disposed along the inner surface of the outer panel. Moreover, it is preferable that a notch is arrange | positioned at the edge of the door glass near the center of a door glass in the advancing direction of a vehicle. Further, the notch may be cut with a cut amount on the side facing the inner panel larger than a cut amount on the side facing the outer panel. Furthermore, the notch may be a recess that is recessed from the edge of the door glass to be larger than the thickness of the door glass and the recessed back is formed in an arc having a diameter smaller than the thickness of the door glass.

  According to the vehicle door according to the present invention, the notch is formed at the edge of the door glass that is drawn between the outer panel and the inner panel, and when the door glass is pushed into the vehicle body by the pressing portion at the time of a side collision, the notch The door glass is crushed from the starting point. The pressure wave generated from the outer panel deformed inward by the side collision reaches the pressure sensor directly without being blocked by the door glass. Therefore, it is possible to quickly detect a side collision and deploy the airbag.

  Further, according to the vehicle door of the invention in which the pressing portion is arranged in a range before the edge of the door glass exceeds the pressure sensor in the direction in which the door glass is drawn between the outer panel and the inner panel, the drawn-in door If the glass overlaps the pressure sensor, it can be crushed at the time of a side collision.

  In addition, according to the vehicle door of the invention in which the pressing portion is arranged on the trajectory where the notch moves when the door glass is drawn between the outer panel and the inner panel, the pressing portion presses the door glass to make the notch. It is easy to concentrate stress on the door, and it is easy to break the door glass.

  Further, according to the vehicle door of the invention in which the pressing portion is fixed to the reinforcing member arranged along the inner surface of the outer panel, the impact is not required to deploy the airbag at the time of a side collision, When the outer panel is deformed by an external force applied inadvertently, the pulled-in door glass is not unnecessarily crushed.

  Further, the vehicle door of the invention in which the notch is arranged at the edge of the door glass near the center of the door glass in the traveling direction of the vehicle, or the cut on the side facing the inner panel rather than the cut amount on the side facing the outer panel. According to the vehicle door of the invention in which the notch amount is larger and the notch is cut, stress is easily concentrated on the notch when the door glass is pressed by the pressing portion. Furthermore, according to the vehicle door of the invention, the notch is recessed from the edge of the door glass to be larger than the thickness of the door glass, and the recessed back is a recess formed in an arc having a diameter smaller than the thickness of the door glass. Stable performance can be exhibited as a starting point for crushing the door glass by pressing the door glass with the pressing portion.

The side view which looked at the door for vehicles of a 1st embodiment concerning the present invention from the body inside. The side view of the state which pulled in the door glass of the vehicle door of FIG. The side view which shows the relative positional relationship of the vehicle door of FIG. 1, and a passenger | crew. Sectional drawing of the door for vehicles in alignment with F4-F4 line | wire in FIG. It is sectional drawing of the door for vehicles in alignment with F5-F5 line in FIG. 4, Comprising: (A) is the state where the door glass was closed, (B) is before door glass crushing, (C) is after door glass crushing. Each is shown. The perspective view which expanded the notch of the vehicle door of 2nd Embodiment which concerns on this invention. The perspective view which expanded the notch of the vehicle door of the 3rd Embodiment which concerns on this invention.

  A vehicle door 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 5. 1, 2, and 3 are views of the vehicle door 1 corresponding to the front seat 2 (FIG. 3) of the vehicle as viewed from the inside of the vehicle body 100. The vehicle door 1 includes an outer panel 11, an inner panel 12, a door glass 13, a drive mechanism 14, a pressing portion 15, a notch 30, and a pressure sensor 16. The pressure sensor 16 is one of the sensors used to deploy an airbag (side airbag) that protects the occupant P when the vehicle has a side collision. The pressure sensor 16 detects a pressure change caused by a pressure wave W generated from the outer panel 11 inward due to a side collision.

  In this embodiment, for convenience of explanation, “front” and “rear” are defined based on the traveling direction of the vehicle, the right hand side as viewed from the passenger P is defined as “right”, and the left hand side is defined as “left”. Also, “upper” and “lower” are defined based on the direction in which gravity acts. Furthermore, the side closer to the center of the vehicle body is sometimes referred to as “inside”, and the direction away from the center of the vehicle body is referred to as “outside”.

  The vehicle door 1 is provided between the outer panel 11 and the inner panel 12 so that a door glass 13 can be pulled in by a drive mechanism 14. In FIG. 1, the door glass 13 is drawn out, that is, the window is closed. In FIG. 2, the door glass 13 is drawn between the outer panel 11 and the inner panel 12, that is, the window is opened. It is. FIG. 1 shows the inner panel 12 in phantom lines, and FIG. 2 omits the inner panel 12. FIG. 3 shows the front seat 2 and the seated occupant P together with the inner panel 12.

  The outer panel 11 forms the outer shape of the vehicle body 100 as shown in FIG. In addition to the rail 121 that guides the door glass 13, the drive mechanism 14, and the pressure sensor 16, the inner panel 12 is provided with an impact bar 17 that is a reinforcing member. The door glass 13 is movable along the rail 121 from a state where it is drawn out between the outer panel 11 and the inner panel 12 to a state where it is drawn between the outer panel 11 and the inner panel 12. The outer panel 11 and the inner panel 12 are joined to each other at a portion excluding the movement range of the door glass 13. As shown in FIG. 3, the inner panel 12 is provided with a hole 122 through which a harness including electrical wiring connected to electrical components such as the drive mechanism 14 and the pressure sensor 16 is passed.

  The drive mechanism 14 is disposed between the inner panel 12 and the door glass 13, and is connected to the lower edge 131 of the door glass 13 through a link 141 that is connected and intersected at the center by a hinge 142. The drive mechanism 14 is not limited to the above configuration as long as it has a function of moving the door glass 13 between the extended state and the retracted state. For example, it may be provided so as to be moved by a wire.

  As shown in FIG. 1 and FIG. 5 (A), the door glass 13 is placed between the outer panel 11 and the inner panel 12, that is, when the window (door glass 13) is closed, the outer panel 11 and the pressure sensor. 16 is disposed at a position deviated from the position. Then, when the door glass 13 is drawn between the outer panel 11 and the inner panel 12 and the position of the door glass 13 is lowered so that the lower edge 131 of the door glass 13 is lower than the pressure sensor 16, FIG. As shown in FIG. 5B, the state is interposed between the outer panel 11 and the pressure sensor 16.

  In the state where the door glass 13 is interposed between the outer panel 11 and the pressure sensor 16, the pressure wave W generated from the inner surface of the outer panel 11 at the time of a side collision is blocked by the door glass 13 and directly to the pressure sensor 16. Since it is not propagated, there is a difference, that is, variation, in the time until the collision is detected between the state in which the door glass 13 is closed and the state in which the door glass 13 is opened.

  Therefore, in the present invention, even when the door glass 13 is interposed between the outer panel 11 and the pressure sensor 16, a contrivance is made so that no difference occurs in the time until the collision is detected. Specifically, when a side collision occurs in a state where the lower edge 131 of the door glass 13 is lower than the pressure sensor 16, the pressing portion 15 and the notch 30 are provided so that the door glass 13 can be crushed without fail. Provided.

  The pressing portion 15 is arranged so as to face the door glass 13 between the retracted door glass 13 and the outer panel 11, that is, outside the door glass 13 interposed between the outer panel 11 and the pressure sensor 16. Yes. And when the vehicle collides with the side, it is configured to press the door glass 13 drawn between the outer panel 11 and the inner panel 12 to the vehicle inner side by being displaced toward the vehicle inner side with the deformation of the outer panel 11. Yes. In the present embodiment, the pressing portion 15 is supported by the impact bar 17 provided along the inner surface of the outer panel 11 on the vehicle outer side from the door glass 13 via the bracket 171. Instead of being fixed to the bracket 171, the pressing portion 15 may be directly fixed to the inner side of the outer panel 11 with an adhesive, or may be directly fixed to the impact bar 17.

  The pressing portion 15 is in a range before the lower edge 131 of the door glass exceeds the pressure sensor 16 in the direction in which the door glass 13 is drawn between the outer panel 11 and the inner panel 12, that is, the door glass 13 is placed on the pressure sensor 16. It arrange | positions above the boundary line B used as the minimum of the lower edge 131 of the door glass 13 when not covering.

  The notch 30 is provided at the lower edge 131 of the door glass 13 on the side pulled between the outer panel 11 and the inner panel 12. The notch 30 becomes a starting point for crushing the door glass 13 when the door glass 13 is pressed by the pressing portion 15 along with the deformation of the outer panel 11 at the time of a side collision. That is, when the door glass 13 is pressed to the vehicle inner side by the pressing portion 15 at the time of a side collision, the door glass 13 is crushed starting from the notch 30.

  In the present embodiment, as shown in FIGS. 1 and 2, the notch 30 is formed in a wedge shape that rises upward from the lower edge 131 near the center of the door glass 13 in the traveling direction of the vehicle. In each figure, the notch 30 is schematically illustrated, and may actually be smaller or provided at a plurality of locations. Moreover, it is preferable that the back side of the notch 30 entering from the lower edge 131 of the door glass 13 is formed in a smooth curved surface so that the door glass 13 is not broken by vibration or light impact during traveling. . However, if the radius of curvature is too large, it will not be a starting point for crushing the door glass 13, so it is better that the radius of curvature is reasonably small. Specifically, the notch 30 may be formed in an arc that is largely recessed from the lower edge 131 of the door glass 13 with respect to the thickness of the door glass 13, and whose recessed depth is smaller than the thickness of the door glass. preferable.

  The door glass 13 is crushed starting from the notch 30 when pressed by the pressing portion 15. Therefore, the pressing portion 15 is not necessarily arranged at a position facing the notch 30. In order to concentrate the stress on the notch 30 with a small force, the pressing portion 15 is arranged on the locus A along which the notch 30 moves when the door glass 13 is drawn between the outer panel 11 and the inner panel 12. It is good to be.

  Further, when the side impact is an impact that does not require the airbag (side airbag) to be deployed, or when the outer panel 11 is inadvertently pushed by an external force and is recessed, the door glass 13 is not broken. Thus, the pressing portion 15 may be directly attached to the impact bar 17 depending on a reinforcing member arranged along the inner surface of the outer panel 11, for example, a stiffener joined to the inner surface of the outer panel 11 or a layout.

  Generally, as shown in FIG. 5A, the outer panel 11 of the vehicle door 1 has an intermediate portion bulging outward in the height direction. That is, the attachment position of the pressing portion 15 is further away from the range in which the outer panel 11 starts to be deformed at the time of a side collision as it moves away from the boundary line B, so that the timing for pressing the door glass 13 is delayed. Therefore, the pressing part 15 is preferably closer to the boundary line B. Further, the lower edge 131 of the door glass 13 is connected to the frame 143 in which the tip of the link 141 of the drive mechanism 14 is slidably fitted at at least two places. The notch 30 is formed between two places where the lower edge 131 of the door glass 13 is connected to the frame 143. Therefore, since the periphery of the notch 30 is reinforced by the frame 143, there is no fear that the door glass 13 is crushed by vibration during traveling.

  As shown in FIGS. 1 and 2, the vehicle door 1 configured as described above opens a window by pulling the door glass 13 between the outer panel 11 and the inner panel 12 by the drive mechanism 14, or opens the door glass. 13 is extended to close the window, and there is no change in appearance from the conventional vehicle door.

  FIG. 4 is a horizontal sectional view of the vehicle door 1 when the moment when the side collision occurs on the right side of the vehicle body 100 is viewed from above. FIG. 5 is a longitudinal sectional view of the vehicle door 1 as viewed from the front. FIG. 5A shows a state in which the door glass 13 is drawn out from between the outer panel 11 and the inner panel 12 and the window is closed. FIG. 5B shows a state in which the door glass 13 is drawn between the outer panel 11 and the inner panel 12 and the window is opened, that is, the door glass 13 is interposed between the outer panel 11 and the pressure sensor 16. The state where the outer panel 11 has started to be pushed inward by the collision is shown. FIG. 5C shows a state in which the door glass 13 is pressed by the pressing portion 15 and the door glass 13 is crushed starting from the notch 30.

  As shown in FIG. 4, for example, when the vehicle has a side collision with the utility pole M, a pressure wave W generated inside from the outer panel 11 at the collision site is propagated between the outer panel 11 and the inner panel 12. At this time, when the door glass 13 is closed as shown in FIG. 5A and the lower edge 131 of the door glass 13 is located above the boundary line B, the pressure wave W is the pressure at the shortest distance. The sensor 16 is reached. By detecting the pressure change of the pressure wave W by the pressure sensor 16, the airbag (side airbag) can be immediately deployed.

  When the door glass 13 is opened as shown in FIG. 5B and the lower edge 131 of the door glass 13 is located below the boundary line B, the door is placed between the outer panel 11 and the pressure sensor 16. If the glass 13 is interposed as it is, the propagation of the pressure wave W generated by the side collision will be blocked. That is, since the pressure wave W due to the side collision propagates around the door glass 13, it takes time until the pressure wave W is detected by the pressure sensor 16.

  According to the vehicle door 1 of the present embodiment, the lower edge 131 of the door glass 13 has the notch 30, and the pressing portion 15 that presses the door glass 13 is provided between the outer panel 11 and the door glass 13. ing. When the outer panel 11 is deformed by the side collision, the pressing portion 15 presses the door glass 13, and the pressed door glass 13 is crushed into fine glass pieces 13 </ b> X starting from the notch 30. Therefore, the pressure wave W generated from the inner surface of the outer panel 11 due to the side collision can reach the pressure sensor 16 without being blocked by the door glass 13 as shown in FIG. That is, as with the door glass 13 being closed, that is, when the door glass 13 is not interposed between the outer panel 11 and the pressure sensor 16, the pressure sensor 16 can detect that a side collision has occurred. There is no difference in detection performance of the pressure sensor 16 depending on the position of the door glass 13. Even if the window is opened to such an extent that the door glass 13 is interposed between the outer panel 11 and the pressure sensor 16, as in the case where the window is closed, the pressure wave W is propagated in the shortest distance due to a side collision. The impact can be detected stably and the airbag can be quickly deployed.

  The vehicle door 1 according to the second and third embodiments of the present invention will be described with reference to the drawings. In each embodiment, components having the same functions as those of the vehicle door 1 of the first embodiment are denoted by the same reference numerals, and the detailed description will refer to the description of the first embodiment and the drawings. The vehicle doors 1 of the second and third embodiments are different from each other in the shape of the notch 30 provided in the lower edge 131 of the door glass 13, and other configurations are the same as those of the first embodiment.

  As shown in FIG. 6, the notch 30 formed in the lower edge 131 of the door glass 13 of the vehicle door 1 according to the second embodiment changes in the thickness direction of the door glass 13. Specifically, the inner cut amount N2 facing the inner panel 12 is larger in a wedge shape than the outer cut amount N1 facing the outer panel 11. Therefore, when the door glass 13 is pressed from the outer panel 11 side by the pressing portion 15, stress concentrates on the inner side facing the inner panel 12, so that cracks easily spread from the notch 30 to the door glass 13 and are reliably crushed.

  As shown in FIG. 7, the notch 30 formed on the lower edge 131 of the door glass 13 of the vehicle door 1 of the third embodiment is a notch 30 notch with respect to the plate thickness t of the door glass 13. The width dimension S1 is smaller than the plate thickness t, and the depth of cut (depth) dimension S2 of the notch 30 is larger than the plate thickness t. The inner portion K of the notch 30 is formed in an arc having a diameter smaller than the plate thickness t. Therefore, when the door glass 13 is pressed from the outer panel 11 side by the pressing portion 15 in the side collision, the tensile stress concentrates on the side facing the inner panel 12 of the inner portion K of the notch 30 and is reliably crushed. .

  In addition, the notch 30 of the vehicle door 1 of 2nd and 3rd embodiment can replace with the notch 30 of 1st Embodiment, and can acquire the same effect as 1st Embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle door, 11 ... Outer panel, 12 ... Inner panel, 13 ... Door glass, 131 ... Lower edge (edge), 15 ... Pressing part, 16 ... Pressure sensor, 17 ... Impact bar (reinforcing member), 111 ... Stiffener (Reinforcing member), 30 ... notch, W ... pressure wave, A ... (the notch moves) locus, t ... plate thickness.

Claims (7)

A vehicle door incorporating a movable door glass that can be retracted between an outer panel and an inner panel,
A pressing portion that is disposed between the outer panel and the door glass and presses the door glass drawn between the outer panel and the inner panel toward the inside of the vehicle in a side collision;
A notch serving as a starting point for crushing the door glass when the door glass is pressed by the pressing portion provided at an edge of the door glass;
A pressure sensor attached to the inside of the inner panel and detecting a pressure wave generated from the outer panel at the time of the side collision;
A vehicle door comprising: 2. The pressing portion is disposed in a range before the edge of the door glass exceeds the pressure sensor in a direction in which the door glass is drawn between the outer panel and the inner panel. Vehicle door described in 1. The said pressing part is arrange | positioned on the locus | trajectory to which the said notch moves when the said door glass is drawn between the said outer panel and the said inner panel, The Claim 1 or Claim 2 characterized by the above-mentioned. Vehicle door. The vehicular door according to any one of claims 1 to 3, wherein the pressing portion is fixed to a reinforcing member arranged along an inner surface of the outer panel. 5. The vehicle door according to claim 1, wherein the notch is disposed at the edge in the vicinity of the center of the door glass in the traveling direction of the vehicle. 6. The notch according to any one of claims 1 to 5, wherein a cut amount on a side facing the inner panel is cut larger than a cut amount on a side facing the outer panel. A vehicle door as set forth in claim 1. The notch is a recess formed in an arc having a diameter recessed from the edge of the door glass larger than the thickness of the door glass and having a diameter smaller than the thickness of the door glass. The vehicle door according to any one of claims 1 to 6.

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