JP2004314870A - Side sunshade - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side sunshade transmitting low energy to a driver or a passenger even if a lateral collision is applied to a door fitted with the side sunshade. <P>SOLUTION: The side sunshade 1 is composed of a screen 6 covering a window pane 13 from inside a vehicle and a bobbin 5 which is accommodated inside the door 2 and on which the screen 6 is wound, wherein a plurality of buckling inducing parts having low strength are provided in places on the bobbin 5 in a longitudinal arrangement, and by buckling the buckling inducing part, the transmission of collisional energy to the driver/passenger is reduced in the case a lateral collision is applied to the door 2 in which the side sunshade 1 is accommodated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a side sunshade that covers a window glass on the side of an automobile from the inside of the vehicle and blocks sunlight that enters into the interior of the automobile, and more particularly to a side sunshade that is transmitted to an occupant even when the side sunshade is incorporated into a door from the side. It concerns low energy side sunshades.
[0002]
[Prior art]
[Patent Literature 1] Japanese Patent Application Laid-Open No. 8-58367
Sunlight enters from the front, rear, and side windows of the automobile, and particularly when the incident direct sunlight hits an occupant in the vehicle, the occupant is uncomfortable. To prevent this, high-end passenger cars are often provided with a sunshade on the rear window and the side window of the rear seat. Of these sunshades, those with side windows on the rear seat were housed inside the door in a state where a light-shielding screen was wound in a roll shape, and the screen was provided through the upper surface of the door trim as shown in FIG. It is common to pull out from the screen draw-out hole.
[0004]
Such an automobile side sunshade is composed of a light-shielding screen and a winding mechanism for winding the light-shielding screen. For example, Japanese Patent Application Laid-Open No. 8-58367 discloses a curtain covering a window glass from the inside of the vehicle, and a window glass. A main body case disposed in a space between a door body or an inner panel of a vehicle body located below a window to be closed and a trim material covering an inner side surface of the inner panel; and There is disclosed a side sunshade of an automobile having a curtain winding means for allowing a curtain to be pulled out from a main body case and winding the curtain in a roll shape in the main body case.
[0005]
Side sunshades include those having a case such as that shown in JP-A-8-58367 and those without a case. The winding mechanism winds the screen by power of a spring or the like. In a so-called casingless type having no case, a winding core for winding the screen is indispensable, and a steel pipe has been conventionally used as the winding core. When a so-called side collision occurs in which the side sunshade is incorporated into the door from the side, the occupant collides with the door trim due to inertial force. And the energy of the collision may be transmitted to the occupant as it is.
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the above problems and to provide a side sunshade with low energy transmitted to an occupant even when the side sunshade is incorporated into a door from the side.
[0007]
[Means for Solving the Problems]
A side sunshade of the present invention made to solve the above-mentioned problem is a side sunshade comprising a screen covering a window glass from the inside of a vehicle, and a core housed inside a door and winding the screen, At a plurality of locations in the longitudinal direction of the winding core, buckling inducing portions having low strength in a bending direction for absorbing the energy of a collision at the time of a side collision by buckling are provided. Here, the core may be formed from a synthetic resin pipe, and the core may be provided with a thin-walled portion as a buckling inducer, and the core may be formed from a metal or synthetic resin pipe. The core may be formed with a circumferential cut as a buckling inducer.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a cross section of an automobile door incorporating the side sunshade of the present invention. A side sunshade 1 is installed between a door inner panel 3 and a door trim 4 constituting a door 2 and attached to the door trim 4. I have. The side sunshade 1 is obtained by winding a screen 6 around a cylindrical winding core 5 and winding the same. The side sunshade 1 is provided with a mounting member 7 for mounting the door trim 4 on the door trim 4 and a winding mechanism provided with power such as a spring (not shown). A conventionally known winding mechanism can be used, and the winding mechanism can be provided at a portion where the winding core 5 is supported by the mounting member 7.
[0009]
FIGS. 2 and 3 show examples of the winding core 5. In the longitudinal direction of the synthetic resin pipe, thin portions 8 in the circumferential direction are provided as buckling inducing portions having low strength in the bending direction. Things. The thickness of the thin portions 8, 8 is preferably 0.5 mm to 1.0 mm, and the length of the thin portions 8, 8 is at least 1/3 of the circumference and the width is 5 mm to 15 mm. Is preferred. FIGS. 4 and 5 show another example of the winding core 5, in which circumferential cuts 9, 9 are provided as buckling inducing portions at a plurality of longitudinal positions of a metal or synthetic resin pipe. It is something. It is preferable that the length of the cuts 9 and 9 be 1/3 to 1/2 of the circumference and the width be 5 mm to 15 mm. When the winding core 5 is configured as described above, when a load is applied to the winding core 5 from the side, buckling occurs at the thin portions 8 and 8 or the cut portions 9 and 9 to absorb the added energy. Become.
[0010]
In the drawing, 10 is a screen draw-out hole provided on the upper surface of the door trim 4, 11 is a reinforcing rib for reinforcing the tip of the screen 6, 12 is a door outer panel, 13 is a window glass, and the window glass 13 is a conventional window glass. Like the automobile door, it can be moved up and down by a winding device (not shown) provided in the door inner panel 3. A weather strip 14 for closing a gap between the door outer panel 12 and the window glass 13 is attached to a top end of the door outer panel 12, and a weather strip 15 for closing a gap between the door trim 4 and the window glass 13 is attached to an upper end of the door trim 4, respectively. . The mounting structure of the weather strips 14 and 15 can be the same as that of a conventional automobile door.
[0011]
In the side sunshade 1 configured as described above, when the reinforcing rib 11 is pinched and the screen 6 is pulled out from the screen draw-out hole 10, the screen 6 is pulled out while accumulating the winding mechanism, and the reinforcing rib 11 is held by a not-shown locking means. Is locked to the window frame, the window glass 13 is shielded from the inside by the screen 6 as in the conventional side sunshade. When the locking of the reinforcing ribs 11 of the screen 6 in the light-shielded state to the window frame is released, the screen 6 is wound around the core 5 by the accumulated winding mechanism, and the reinforcing ribs 11 are pulled out of the screen drawing holes. Stopping in a state of being locked to the periphery of the ten is also the same as in the related art.
[0012]
When the side sunshade 1 collides from the side with the door 2 incorporated therein, the occupant collides with the door trim 4 due to inertial force, and the core 5 in the door trim 4 is pushed by the occupant via the door trim 4. Become. Here, since the winding core 5 is provided with the thin portions 8, 8 or the cut portions 9, 9 as buckling inducing portions, buckling occurs in the thin portions 8, 8 or the cut portions 9, 9, and this buckling occurs. As a result, the door trim 4 is deformed or broken to reduce the collision energy transmitted to the occupant.
[0013]
FIG. 6 is a graph showing the relationship between the deformation size of the door trim 4 at the time of collision with the door 2 and the load received by the occupant from the door trim 4, and the solid line shows the side sunshade 1 of the present invention, and the broken line shows the broken line. Shown is a conventional side sunshade with a steel pipe core. While the deformation size is small, the load on the occupant increases as the deformation size increases. However, according to the present invention, the thin portion 8, 8 or the cut 9, 9, When the buckling in 9 starts, the increase in the load stops, and when the buckling ends, the load increases again as the deformation size increases.
[0014]
On the other hand, in the case where the core is made of a conventional steel pipe that does not easily deform, the load on the occupant increases until a large load causing deformation of the core is reached as shown by the broken line in FIG. Although the load is reduced during the deformation of the core, the load increases again after the deformation of the core is completed. As described above, in the conventional side sunshade using the core, even when the door trim is deformed or broken, the core is stretched, and a large load is applied to the occupant.
[0015]
【The invention's effect】
As is clear from the above description, the present invention provides a buckling inducing portion having a low strength in the bending direction such as a thin portion or a notch at a plurality of locations in the longitudinal direction of the winding core for winding the screen. The buckle has the advantage that it buckles when it receives a load equal to or more than a certain value without being stretched in the door trim, and the door trim is deformed or broken, thereby reducing the energy transmitted to the occupant. Therefore, the present invention greatly contributes to the industry as a solution to the problem of the conventional side sunshade.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a door incorporating a side sunshade of the present invention.
FIG. 2 is a front view showing an example of a winding core.
FIG. 3 is a longitudinal sectional view showing an example of a winding core.
FIG. 4 is a front view showing another example of the winding core.
FIG. 5 is a longitudinal sectional view showing another example of the winding core.
FIG. 6 is a graph showing a relationship between a deformation size of a door trim and a load on an occupant.
FIG. 7 is a perspective view of a conventional automobile door including a side sunshade.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 side sunshade 2 door 3 door inner panel 4 door trim 5 core 6 screen 7 mounting member 8 thin portion 9 cutout portion 10 screen draw-out hole 11 reinforcing rib 12 door outer panel 13 window glass 14, 15 weather strip

Claims (3)

A side sunshade comprising a screen that covers a window glass from the inside of the vehicle and a winding core that is housed inside the door and winds the screen, wherein a plurality of portions in the longitudinal direction of the winding core have collision energy at the time of a side collision. The side sunshade is provided with a buckling inducing portion having a low strength in a bending direction for absorbing buckling by buckling. The side sunshade according to claim 1, wherein the winding core is formed of a synthetic resin pipe, and the winding core is provided with a thin portion as a buckling inducing portion. 2. The side sunshade according to claim 1, wherein the winding core is formed of a metal or synthetic resin pipe, and the winding core is provided with a notch in a circumferential direction as a buckling inducing portion.

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