JP2008037222A - Sun visor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sun visor structure capable of reducing occurrence of problems associated with the interference of a curtain airbag to be developed with a sun visor body. <P>SOLUTION: An upper end of a longitudinal shaft part 21b of an L-shaped stay 21 is mounted via an upper circular spacer 26, a fixed plate 25, and a lower circular spacer 27. The fixed plate 25 has a circular center part 25a raised upwardly in a spherical shape, and a long hole 28 extending from its top outwardly in the vehicle width direction, and a lower surface of the upper circular spacer 26 and an upper surface of the lower circular space 27 are spherical. When a curtain airbag 36 is developed and interfered with a sun visor body 22, an upper end of the stay 21 is guided by the long hole 28, and rocked inwardly in the vehicle width direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sun visor that blocks sunlight entering a vehicle interior.

  A vehicle is generally provided with sun visors in a driver seat and a passenger seat. The sun visor is composed of a plate-shaped sun visor main body and a stay that pivotally supports the sun visor main body. The stay includes a long horizontal shaft portion that extends in the horizontal direction along the upper edge of the sun visor main body, and the horizontal shaft portion. And a short vertical axis extending in a direction perpendicular to the vertical axis.

  The sun visor body can be rotated with respect to the horizontal shaft portion of the stay, whereby the sun visor body can be placed in a retracted position along the roof and a use position in a state where the sun visor body is suspended downward from the stay. In addition, the sun visor device is installed along the front window glass to shield the sunlight from the front and the side window glass by installing the stay vertical axis on the vehicle body side so as to be rotatable. Thus, it can be displaced between the side positions blocking the sunlight from the side.

  Patent document 1 is disclosing the sun visor apparatus which can slide a sun visor main body to the axial direction of the horizontal-axis part of a stay. In addition, among sun visor devices, sun visor devices that can enlarge the sun visor body in the lateral direction are known. For example, when it is desired to block a wide range of sunlight from the side, the sun visor body can be used in the lateral direction. it can.

  By the way, as can be seen in Patent Document 2, a curtain airbag that protects an occupant during a side collision or rollover is known. In a vehicle equipped with this curtain airbag, there is a known problem that when the curtain airbag is deployed, it interferes with the sun visor device.

  Patent Document 3 discloses that a sun visor is deployed by a curtain airbag that is deployed when the curtain airbag is deployed with the height level at which the horizontal shaft portion of the stay of the sun visor device is positioned higher than the corner line of the roof trim. It proposes to reduce the load applied to the sun visor body by rotating the body around the stay.

In Patent Document 4, in order to prevent the sun visor body from falling off the stay due to the collision of the deploying curtain airbag, a stopper is provided on the horizontal axis of the stay and the sun visor body exceeds the predetermined range. It is proposed to provide a locking member that engages with the stopper when it is slid.
Japanese Patent Laying-Open No. 2005-247048 JP 2001-39255 A JP 2003-31256 A JP 2004-98748 A

  As in Patent Document 3, there is a problem that defining the height position at which the stay is arranged eliminates the degree of design freedom regarding the arrangement of the sun visor device. Also, as in Patent Document 4, providing a member that engages with each other between the stay and the sun visor body is provided with a mechanism that allows the sun visor body to slide to a position where light shielding is desired, as in Patent Document 1. There is a problem that it becomes difficult to do.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a sun visor device that can reduce the occurrence of problems associated with interference between a deploying curtain airbag and a sun visor body while solving the above-described problems.

According to the present invention, such a technical problem is
A curtain airbag device arranged along the side of the roof from the front pillar and installed along the side window in the event of a side collision is installed in the vehicle, and the L-shaped stay in the vehicle is installed in the vehicle. A sun visor structure that is attached via a shaft portion, and a sun visor body is attached to the horizontal shaft portion of the L-shaped stay;
This is achieved by providing a sun visor structure in which the longitudinal axis portion of the stay is attached to the inner side in the vehicle width direction so as to be displaceable.

  That is, according to the present invention, since the longitudinal axis portion for attaching the L-shaped stay to the vehicle is displaced inward in the vehicle width direction, even if the curtain airbag to be deployed interferes with the sun visor body. The sun visor body can be released inward in the vehicle width direction with the displacement of the longitudinal axis of the stay. Therefore, it is possible to reduce the occurrence of problems such as damage to the sun visor device, such as broken stays, and the sun visor body dropping off from the stay. Moreover, according to this invention, since it is not related to the horizontal-axis part of the stay which attaches a sun visor main body. There is no problem in providing a mechanism for sliding or expanding the sun visor body in the axial direction of the horizontal shaft portion.

  In preferable embodiment of this invention, the said L-shaped stay is arrange | positioned in the height position which overlaps with the said curtain airbag apparatus by the side view of a vehicle. As a result, the mounting position of the stay vertical axis portion relative to the vehicle body is located higher than the deployable curtain airbag, so when the deployable curtain airbag interferes with the sun visor body, the vertical axis comparison The sun visor main body can be released by a relatively small displacement inward in the vehicle width direction, thereby reducing the impact force on the lateral shaft portion of the stay.

  In one example of a preferred embodiment of the present invention, when the curtain airbag is deployed and interferes with the sun visor body, the longitudinal portion of the L-shaped stay can swing inward in the vehicle width direction. In another example, when the curtain airbag is deployed and interferes with the sun visor body, the longitudinal axis portion of the L-shaped stay is slidable inward in the vehicle width direction.

  When the vertical axis portion of the L-shaped stay is swung, it is preferable that the upper end portion of the L-shaped stay is attached to the vehicle so that it can swing inward in the vehicle width direction. According to this, the lower end of the sun visor body can be largely relieved inward in the vehicle width direction with a small swing of the L-shaped stay.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a view seen from the driver's seat or passenger's seat side outward in the vehicle width direction. In FIG. 1, reference numeral 1 is a front window of an automobile. The front window 1 has an upper end fixed to the front header 2. A roof trim 4 is disposed on the vehicle roof side of the roof 3 of the automobile. The curtain airbag device 7 is disposed along a side portion of the roof 3 across a front pillar (A pillar) 8 and a central pillar (B pillar) 9.

  The A pillar 8 and the B pillar 9 form a door opening 10 for a driver seat or a passenger seat, and a front side door 11 is attached to the door opening 10 so as to be opened and closed. Reference numeral 12 in FIG. 1 indicates a glass of the front side door 11, that is, a front side window, and 13 indicates a roof side rail.

  The sun visor device 20 is attached to the corner portion of the front end corner of the roof trim 2 as in the prior art. The sun visor device 20 includes an L-shaped stay 21 and a sun visor body 22 attached to the stay 21. The stay 21 of the sun visor device 20 overlaps with the curtain airbag device 7 when viewed from the side. It is arranged. The sun visor main body 22 can be enlarged or slid in the longitudinal direction of the horizontal shaft portion 21a of the stay 21 as shown by an imaginary line by a conventionally known mechanism.

  2 and 3 show the mounting structure of the sun visor device of the first embodiment. As best understood from FIG. 3, the attachment portion of the sun visor device 20 to the roof inner panel 23 includes a fixing plate 25, and an upper circular spacer 26 and a lower circular spacer 27 that are arranged with the fixing plate 25 interposed therebetween. . The fixed plate 25 has a circular central portion 25a that is raised upward, and the upper surface and the lower surface of the circular central portion 25a are both spherical. The circular central portion 25a is formed with a long hole 28 extending outward from the top of the circular central portion 25a. The width of the long hole 28 is substantially equal to the diameter of the longitudinal axis portion 21 b of the stay 21.

  The upper circular spacer 26 disposed on the upper side of the circular central portion 25a of the fixed plate 25 has an upper surface 26a formed of a horizontal surface and a lower surface 26b formed of a spherical surface convex upward. A circular hole 26 c is formed in the central portion of the, and this circular hole 26 c is substantially equal to the diameter of the longitudinal axis portion 21 b of the stay 21.

  The lower circular spacer 27 disposed on the lower side of the circular central portion 25a of the fixed plate 25 has an upper surface 27a composed of a spherical surface convex upward and a lower surface 27b composed of a horizontal surface. A circular hole 27 c is formed in the central portion of the circular spacer 27, and this circular hole 27 c is substantially equal to the diameter of the longitudinal axis portion 21 b of the stay 21.

  The above three elements, that is, the upper and lower circular spacers 26 and 27 and the fixing plate 25 are arranged so that the lower circular spacer 27, the fixing plate 25, The upper circular spacers 26 are assembled in this order, whereby the upper end portion of the stay 21 is guided by the long hole 28 and can swing inward in the vehicle width direction. A pair of grooves 30, 30 are formed on the longitudinal axis 21 b of the stay 21 at intervals corresponding to the thicknesses of the three members 27, 25, 26, and an E ring 31 is formed in the pair of upper and lower grooves 30. Installed. In FIG. 2, the illustration of the E-ring 31 is omitted in order to avoid complication of the diagram.

  The sun visor device 20 assembled as described above is fixed to the roof inner panel 23 using a pair of bolts 32 and nuts 33. That is, the fixed plate 25 is formed with a pair of bolt insertion holes 35 spaced in the vehicle width direction, and the bolts 32 described above are inserted into the bolt insertion holes 35.

  When the curtain airbag 36 accommodated in the curtain airbag device 7 is deployed due to a side collision of the vehicle and the deployed curtain airbag 36 collides with the sun visor body 22, the sun visor body 22 receives the impact force and the sun visor body 22 receives the impact force. 21, the upper end portion of the vertical axis portion 21 b is displaced along the long hole 28, and accordingly, the sun visor body 22 is swung so that the lower end thereof is displaced inward in the vehicle width direction (the arrow direction in FIG. 2). The impact force can be relieved by the movement.

  As described above, the impact force caused by the deploying curtain airbag 36 is alleviated by the swinging of the sun visor body 22 inward in the vehicle width direction. This swinging is the height of the curtain airbag device 7. Since the swing is centered on the upper end of the vertical axis 21b of the stay 21 that is located at the same level as or higher than the level, the sun visor main body 22 is moved by a slight swing of the vertical axis 21b of the stay 21. The lower end can be largely relieved inward in the vehicle width direction. Accordingly, it is possible to reduce problems such as the stay 21 being folded by the impact force from the curtain airbag 36 and the sun visor body 22 falling off the stay 21.

  4 to 6 show the mounting structure of the sun visor device of the second embodiment. The fixing plate 40 included in the mounting structure of the second embodiment has a circular center hole 41 that is substantially the same as the diameter of the longitudinal axis portion 21b of the stay 21, and this center hole 41 is located outward in the vehicle width direction. A substantially semicircular extension hole 42 is connected to each other, and a pair of protrusions 43 are formed at the boundary between the extension hole 42 and the center hole 41. Further, a vertical wall 44 having a circular arc shape in plan view is provided on the inner periphery of the center hole 41 on the inner side of the vehicle.

  Also in the mounting structure of the second embodiment, the curtain airbag that is deployed when the curtain airbag 36 accommodated in the curtain airbag device 7 is deployed due to a side collision of the vehicle, etc., as in the first embodiment described above. When 36 collides with the sun visor main body 22, the sun visor main body 22 tends to swing around the upper end portion of the longitudinal axis portion 21b of the stay 21, that is, the attachment portion to the vehicle body. The vertical wall portion 21b of FIG. 21 crushes the protruding portion 43 from the center hole 41 and shifts to the extension hole 42, whereby the lower end of the sun visor body 22 is displaced inward in the vehicle width direction (the arrow direction in FIG. 4). Can reduce the impact force. Accordingly, it is possible to reduce problems such as the stay 21 being folded by the impact force from the curtain airbag 36 and the sun visor body 22 falling off the stay 21.

  7 and 8 show the mounting structure of the sun visor device of the third embodiment. The fixing plate 50 included in the mounting structure of the third embodiment has a central cylindrical portion 51 having a diameter substantially the same as the diameter of the longitudinal axis portion 21b of the stay 21, and the central cylindrical portion 51 extends upward. Yes. The pair of bolt insertion holes 35 that are spaced apart in the vehicle width direction with the central cylindrical portion 51 interposed therebetween are constituted by elongated holes that extend in the vehicle width direction. When the fixing plate 50 is attached to the roof inner panel 23 using the bolt 32, the attaching operation is performed in a state where the bolt 32 is in contact with the end of the bolt insertion hole 35 of the fixing plate 50 in the vehicle width direction. Therefore, when a strong force is applied to the fixed plate 50 inward in the vehicle width direction, the fixed plate 50 can be slid inward in the vehicle width direction by the long bolt insertion hole 35.

  In the mounting structure of the third embodiment, when the curtain airbag 36 accommodated in the curtain airbag device 7 is deployed due to a side collision of the vehicle, the deployed curtain airbag 36 collides with the sun visor body 22. By this impact force, the fixed plate 50 slides inward in the vehicle width direction, whereby the sun visor main body 22 is displaced inward in the vehicle width direction (arrow direction in FIG. 7), and the impact force can be reduced. Accordingly, it is possible to reduce problems such as the stay 21 being folded by the impact force from the curtain airbag 36 and the sun visor body 22 falling off the stay 21.

  FIG. 9 shows the mounting structure of the sun visor device of the fourth embodiment. The mounting structure of the fourth embodiment has a guide box 60 installed on the roof inner panel 23, and the guide box 60 extends in the vehicle width direction. The roof trim 4 has a long hole 61 having a width substantially the same as the diameter of the stay 21 at a portion corresponding to the guide box 60. The long hole 61 extends in the vehicle width direction. Yes.

  The stay 21 of the sun visor device 7 has an upper end portion of the longitudinal axis portion 21b fixed to a slider 62. The slider 62 is guided by a guide box 60 and can move in the vehicle width direction.

  When the sun visor device 7 is attached to the vehicle body, the slider 62 is disposed at the outer end of the guide box 60 in the vehicle width direction. The initial position of the slider 62 is defined, for example, by engaging a cut-and-raised piece 60 a protruding inside the guide box 60 with an inner end in the vehicle width direction of the slider 62 by cutting and raising a part of the guide box 60. Is good.

  In the mounting structure of the fourth embodiment, when the curtain airbag 36 accommodated in the curtain airbag device 7 is deployed due to a vehicle side collision or the like, the deployed curtain airbag 36 collides with the sun visor body 22. Due to this impact force, the slider 62 is cut and raised, and the piece 60a is pushed down and slid inward in the vehicle width direction, so that the sun visor body 22 is inward in the vehicle width direction (see FIG. The impact force can be reduced by sliding displacement in the direction of the arrow 9). Accordingly, it is possible to reduce problems such as the stay 21 being folded by the impact force from the curtain airbag 36 and the sun visor body 22 falling off the stay 21.

  As described above, according to the embodiment of the present invention, when the curtain airbag 36 accommodated in the curtain airbag device 7 is deployed due to a side collision of the vehicle or the like, the stay 21 as in the first and second embodiments. The sun visor body 22 swings or slides inward in the vehicle width direction by the swinging motion of the vertical shaft portion 21b or the sliding motion of the vertical shaft portion 21b of the stay 21 as in the third and fourth embodiments. Can be relaxed. Accordingly, it is possible to reduce problems such as breakage of the stay 21 due to interference with the sun visor device 7 when the curtain airbag 36 is deployed, and dropping of the sun visor body 22 from the stay 21.

  Further, in order to reduce such a problem, a swing mechanism and a slide mechanism are provided in the longitudinal axis portion 21b of the stay 21 and the attachment portion for attaching this to the vehicle body side. As shown, it is possible to maintain a degree of freedom in design by providing a mechanism for expanding or sliding the sun visor main body 22 and displacing the light shielding position according to the sunlight from the lateral direction or expanding the area capable of light shielding.

It is the partial view which looked at the vehicle width direction outward from the vehicle interior of the vehicle interior front part. It is sectional drawing for demonstrating the attachment structure of the sun visor apparatus of 1st Example. It is a perspective view which decomposes | disassembles and shows the main components contained in the attachment structure of the sun visor apparatus of 1st Example. It is sectional drawing for demonstrating the attachment structure of the sun visor apparatus of 2nd Example. FIG. It is the perspective view which looked at the fixed plate which is main components contained in the attachment structure of the sun visor apparatus of 2nd Example from diagonally upward. FIG. 6 is a plan view of the fixed plate illustrated in FIG. 5. It is sectional drawing for demonstrating the attachment structure of the sun visor apparatus of 3rd Example. It is the perspective view which looked at the fixed plate which is main components contained in the attachment structure of the sun visor apparatus of 3rd Example from diagonally upward. It is sectional drawing for demonstrating the attachment structure of the sun visor apparatus of 4th Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front window 2 Front header 3 Roof 4 Roof trim 7 Curtain airbag apparatus 8 Front pillar (A pillar)
9 Central pillar (B pillar)
12 Front side window 13 Roof rail 20 Sun visor device 21 Stay 21a Stay horizontal shaft portion 21b Stay vertical shaft portion 22 Sun visor body 23 Roof inner panel 25 Fixing plate 25
25a Circular center part (spherical surface) raised upward
26 Upper circular spacer 27 Lower circular spacer 28 Long hole 30 E-ring mounting groove 31 E ring 32 Bolt 35 Bolt insertion hole of fixing plate 36 Air bag 40 Fixed plate included in the second embodiment 50 Third embodiment Fixed plate included in 60 Guide box 62 Slider

Claims (5)

A curtain airbag device arranged along the side of the roof from the front pillar and installed along the side window in the event of a side collision is installed in the vehicle, and the L-shaped stay in the vehicle is installed in the vehicle. A sun visor structure that is attached via a shaft portion, and a sun visor body is attached to the horizontal shaft portion of the L-shaped stay;
The sun visor structure characterized in that the longitudinal axis portion of the stay is attached to the inner side in the vehicle width direction so as to be displaceable.   The sun visor structure according to claim 1, wherein the L-shaped stay is disposed at a height position overlapping the curtain airbag device in a side view of the vehicle.   The sun visor structure according to claim 1 or 2, wherein when the curtain airbag is deployed and interferes with the sun visor main body, a longitudinal axis portion of the L-shaped stay is swingable inward in the vehicle width direction. .   The sun visor structure according to claim 3, wherein an upper end portion of a longitudinal axis portion of the L-shaped stay is attached so as to be swingable inward in the vehicle width direction.   The sun visor structure according to claim 1 or 2, wherein when the curtain airbag is deployed and interferes with the sun visor main body, a longitudinal axis portion of the L-shaped stay is slidable inward in the vehicle width direction.

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