JP2009096450A - Airbag device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve appearance around a cockpit of an automobile by reflecting an image of an emblem as an image with a sense different from that reflected by an indirect lighting means used as a lighting means for a dashboard panel when the emblem is arranged in an airbag cover and the shape thereof is illuminated and reflected, and to reflect the real image of the emblem without forming an emblem arrangement section in the airbag cover that precisely. <P>SOLUTION: The emblem arrangement section 3 is arranged in the airbag cover 1 cloven along with expansion/development of the airbag. When the emblem 2 is arranged in the emblem arrangement section 3, between the periphery of the emblem 2 and the emblem arrangement section 3, a clearance section 8 illuminated by a ray of light emitted by an LED chip 5 arranged on the backside of the emblem 2 in the emblem arrangement section 3 is formed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an airbag apparatus including an airbag cover that is torn along with the inflation and deployment of the airbag, and more particularly to an airbag apparatus configured by mounting an emblem on the airbag cover.

  This type of airbag device operates in order to capture an occupant safely by detecting the accident and inflating and deploying the airbag in the event of a car crash or the like. For example, the pad portion of the steering wheel It is known as a driver airbag device housed in the vehicle.

  And this kind of airbag apparatus accommodates in the concave bag accommodating part formed in the said pad part in the state which folded the airbag, and obstruct | occludes the opening of the said bag accommodating part with an airbag cover. .

  As a result, since the airbag cover is located, for example, in the pad portion that exists in the central portion of the steering wheel, the airbag cover is installed in a place that is very conspicuous to the driver and the like, and it is necessary to consider it in terms of aesthetics. For this reason, for example, it is widely used to wear an emblem with a mark that marks the manufacturer. Furthermore, by illuminating the emblem itself with lighting etc. Something is done.

  As a conventional technique developed from such a viewpoint, for example, an acrylic plate is disposed on the passenger side of a switch cover (corresponding to an airbag cover) provided on the pad portion of the steering wheel, and a black color is provided on the passenger side of the acrylic plate. A mask portion to which a paint such as paint is applied is partially disposed to form an emblem portion, and a reflective portion is formed by applying white paint on the front side of the acrylic plate to the vehicle, There is known a configuration in which an LED is arranged on the side and inside an acrylic plate and an emblem portion is illuminated by lighting of the LED (see Patent Document 1).

  And according to the said prior art, it is going to improve the visibility of the operation part of the audio | voice and navigation apparatus provided in the fixing | fixed part of the pad part by illuminating an emblem part.

  By the way, the airbag device detects an accident in the event of a collision of an automobile, and inflates and deploys the airbag so as to capture an occupant safely. Since it is used and does not operate during the normal driving of an automobile, the detection sensor can detect an accident accurately or instantaneously, or the inflator that inflates and deploys the airbag can operate normally. It is preferable to automatically check whether the airbag is normally inflated and deployed by the gas ejection.

  From such a point of view, an alarm display device using an emblem that attempts to use a mechanism for illuminating the emblem portion for operation check of an airbag device has already been proposed (see Patent Document 2).

According to this, the emblem main body part that imitates the manufacturer's company emblem etc. is placed at the center of the emblem attached to the airbag cover, and the surrounding illuminator except the emblem main body part is illuminated. The emblem main body is raised so that the illuminant is illuminated manually during normal operation. When the airbag device is abnormal, the abnormality detection system for the airbag device operates to emit light. By illuminating the body with blinking light, an abnormal state of the airbag device is notified.
JP 2006-168704 A JP 2000-118320 A

  According to such a conventional alarm display device using an emblem, it can be said that it is a so-called direct light illuminating device in which a portion of a light emitter illuminates while being shielded by an opaque emblem main body portion of the emblem.

  However, in any of the above prior arts, the illuminator in the emblem is directly illuminated by light, so that the illumination of the instrument panel or the like usually employs an indirect illumination device and the illumination target portion is blurred In view of the fact that it is designed to illuminate at the emblem, in order to illuminate the illuminant in the emblem accurately, for example, the airbag cover side In the case where the emblem is provided in a fitting manner with a recessed portion provided in the case, a gap is created between the two if the outer shape of the emblem and the inner wall shape of the recessed portion do not exactly match. In addition, if this gap is not uniform, parts other than the emblem are illuminated, and a virtual image different from the actual outer shape of the emblem is projected. From an aesthetic point of view, it is necessary to accurately form the shape of the recessed portion into which the emblem is inserted at the time of molding, which causes an increase in the manufacturability of mold production management of the mold. .

  Therefore, in view of such points, the present invention is projected by an indirect illumination method used as another illumination method such as an instrument panel when an emblem is installed on an airbag cover and the emblem shape is illuminated. It has a different sensation from the image, improves the aesthetics around the cockpit of the car, etc., and can be used to project the actual image of the emblem without molding the emblem installation part of the airbag cover so accurately. An object of the present invention is to provide an airbag apparatus.

  An airbag apparatus according to the present invention is an airbag apparatus provided with an airbag cover that is cleaved as the airbag is inflated and deployed, wherein the airbag cover is provided with an emblem installation part that is integral or separate from the airbag cover. An emblem is disposed in the installation portion, and a translucent portion that is illuminated by a light beam emitted from a light source installed in the emblem installation portion is formed between the outer periphery of the emblem and the emblem installation portion.

  With this configuration, the light emitted from the light source installed on the back side of the emblem illuminates the translucent part formed between the emblem outer peripheral part and the emblem installation part, and the actual outer shape of the emblem is indirect illumination light. It is possible to contribute to the improvement of appearance by unifying the aesthetics around the cockpit such as an automobile instrument panel and the shape of the gap. Even if it is not formed very accurately, the actual outer shape of the emblem can be indirectly indirectly shown, so the emblem installation part may be formed into a rough shape to some extent. Die production management man-hours can be reduced.

  In the airbag device according to the present invention, the translucent portion may be constituted by a gap portion formed between an outer peripheral portion of the emblem and the emblem installation portion.

  With this configuration, the emblem installation portion can be formed into a rough shape to some extent, and the number of man-hours for managing the production of the mold for the airbag cover can be reduced.

  In the airbag apparatus according to the present invention, a light diffusing plate is disposed between the light source and the airbag cover, and the light emitted from the light source is guided to the gap by the light diffusing plate so as to be illuminated. You may make it comprise.

  With this configuration, the light emitted from the gap formed between the outer periphery of the emblem and the emblem becomes indirect illumination light by the light diffused from the light diffusion plate, and the actual outer shape of the emblem is reflected by the indirect illumination light. As a result, the appearance around the cockpit of the car can be improved and the aesthetics can be improved.

  Moreover, the airbag apparatus which concerns on this invention may comprise the said light source by the light emitting element mounted on a light emission board | substrate, and you may make it install the said light emission board | substrate in the said emblem installation part.

  With this configuration, by installing the light emitting substrate in the emblem installation portion, the light source is also installed, so that the installation of the light source is simplified and the number of installation steps can be reduced.

  Further, in the airbag device according to the present invention, an enveloping body made of a member that transmits light emitted from the light emitting element is disposed between the light emitting substrate and the emblem, and the light emitting element is the light emitting substrate. You may make it comprise so that it may be enclosed with.

  With this configuration, the light-emitting element is encapsulated together with the light-emitting substrate by the enveloping body, thus preventing foreign matter from entering the inside of the emblem installation part through the gap and reaching the light-emitting substrate or the light-emitting element. can do.

  Further, the airbag device according to the present invention has a mounting leg projectingly formed on the back side of the emblem, and the tip of the mounting leg is inserted and projected on the back side of the airbag cover. You may comprise so that the said emblem may be attached to the said emblem installation part by engaging an emblem fixing plate with the front-end | tip part of the said mounting leg part which protruded.

  With this configuration, even if the airbag cover is cleaved due to the inflation and deployment of the airbag, the emblem is attached to the airbag cover by engaging the mounting leg portion with the emblem fixing plate. It will not come off.

  In the airbag device according to the present invention, the emblem installation portion is formed with a recessed portion for fitting the emblem to the airbag cover, and the emblem is fitted into the recessed portion. You may comprise so that the said clearance gap part may be formed between an outer peripheral part and the said recessed part.

  With this configuration, a gap is formed between the outer peripheral portion of the emblem and the recessed portion, so the shape of the gap is a configuration for indirectly projecting the outer shape of the emblem. Therefore, it is not necessary to form it in such a precise shape, and the number of man-hours for managing the production of the mold for the airbag cover can be reduced.

  Further, the airbag device according to the present invention forms the emblem installation portion by raising the surface side of the light diffusing plate, and fitting the emblem to the emblem installation portion by fitting the emblem into the light emblem. It may be installed on a diffuser plate, and a portion that protrudes from the outer periphery of the emblem may be formed in the emblem setting portion, and the protruding portion may be configured as the gap portion.

  With this configuration, the portion of the emblem installation portion that protrudes from the outer periphery of the emblem is configured as a gap portion that is illuminated by the light emitted from the light source installed on the back surface portion of the airbag cover, so the shape of the gap portion is not so accurate. Even if the emblem is not formed into a simple shape, the emblem is projected into the actual shape, and the man-hours for managing the production of the mold for the airbag cover can be reduced.

  Moreover, the airbag apparatus which concerns on this invention can be made into the airbag apparatus with which the said airbag cover is provided in the pad part of a steering wheel.

  Therefore, the emblem attached to the air bag cover is projected with the gap by the actual outer shape by the light frame caused by indirect light, and for example, the aesthetics around the cockpit such as an automobile instrument panel is unified. This contributes to improving the appearance of the emblem, and the emblem installation part can be shown so accurately because the actual outer shape of the emblem can be indirectly indirectly shown without the need to form the gap part very accurately. Therefore, it is not necessary to mold into a simple shape, and the number of man-hours for managing the production of the mold for the airbag cover can be reduced.

  According to the present invention configured as described above, light emitted from a light source installed on the back side of the emblem illuminates a gap formed between the outer periphery of the emblem and the emblem installation section, and the actual emblem Will be projected with a light frame that is `` bobyo '' with indirect illumination light, for example, it can contribute to improving the appearance as a unified aesthetic around the cockpit such as an automobile instrument panel, In addition, since the actual outer shape of the emblem can be indirectly indirectly shown even if the shape of the gap is not formed accurately, the emblem installation portion may be formed into a somewhat rough shape, It is possible to reduce the number of man-hours for managing the production of the air bag cover mold.

  Next, a first embodiment according to the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic plan view of a steering wheel for an automobile equipped with an airbag device adopting an embodiment of the present invention, FIG. 2 is an exploded perspective view of the airbag cover of FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 1, and FIG. 5 is a cross-sectional view taken along the line A-A in FIG. A sectional view, FIG. 6 is an enlarged view in the circle B of FIG. 5, and FIG. 7 is a sectional view taken along the line CC in FIG.

  First, in FIG. 1, the airbag cover 1 is mounted at a substantially central portion of the pad portion 13 a in the steering wheel 13 and accommodates an unillustrated airbag device that is provided on the pad portion 13 a and folded into a unit. The opening of the storage portion to be closed is closed.

  As shown in FIG. 2, the airbag cover 1 has a lid portion 1a that closes the opening of the storage portion, and protrudes with respect to the lid portion 1a at a substantially central portion on the back side of the lid portion 1a. Thus, by providing the standing wall portion 1b, a concave circular emblem installation portion 3 for accommodating and installing the emblem 2 is formed, and a cylindrical shape is formed at the substantially central portion of the bottom portion 3b in the emblem installation portion 3. The column part 3a is projected.

  Further, on the back side of the lid portion 1a, a tear wall 1d for storing an airbag (not shown) constituting the airbag device and a tear line for tearing the airbag cover 1 when the airbag is inflated and deployed. 1c is formed.

  As shown in FIG. 2, the emblem 2 is accommodated in the emblem installation part 3 so as to be exposed on the surface of the airbag cover 1 with a decorative part (not shown) that represents the manufacturer's company emblem or the like. In addition, the emblem installation unit 3 includes a light diffusing plate 4 attached to the lower surface of the emblem 2 and a plurality of light sources constituting a light source attached to the lower surface 8 (or side portion) of the light diffusing plate 4. The light emitting substrate 6 on which the LED chip 5 is mounted is accommodated.

  The emblem 2, the diffusing plate 3 and the light emitting substrate 6 are respectively formed with central holes 2-1, 4-1 and 6-1 for inserting and fitting the column portions 3a of the emblem installation portion 3 respectively.

  A pair of mounting legs 2 a protrude from the back surface side of the emblem 2 at positions facing each other, and the mounting legs 2 a are composed of the light diffusion plate 4, the light emitting substrate 6, and the bottom 3 b of the emblem installation section 3. The insertion holes 4c, 6c, and 3c respectively provided in the emblem installation part 3 are sequentially inserted and engaged with the engagement holes 7c provided in the emblem mounting plate 7 disposed on the back surface side of the bottom part 3b of the emblem installation part 3, thereby 3, the emblem 2 is attached to the airbag cover 1 together with the light diffusion plate 4 and the light emitting substrate 6.

  When the emblem 2 is installed in the emblem installation section 3, as shown particularly in FIG. 6, there is an outer peripheral section of the emblem 2 between the outer peripheral section of the emblem 2 and the inner wall of the emblem installation section 3 (standing wall section 1b). The light diffusing plate 4 has an outer peripheral portion that protrudes from the outer peripheral portion of the emblem 2, and the protruding portion becomes the gap portion 8. It is installed in the emblem installation unit 3 so as to face each other.

  Moreover, when the support | pillar part 3a is fitted to the center hole 2-1 of the emblem 2, the gap | interval part 8-1 is formed in addition to the clearance gap part 8, especially as shown in FIG.

  The light emitting substrate 6 is provided with a flat cable 10 whose one end is electrically connected to each mounted LED chip 5, and a connector 5a is attached to the other end of the flat cable 10 and 3d is inserted, It is electrically connected to the connector 9-3a of the connection flat cable 9-3 connected to the switch means 9-1.

  The switch means 9-1 is connected to the power source 9-2 and is operated by the manual switch for illuminating the LED chip 5 and the switch signal of the air bag device control means 9-4 to cause the LED chip 5 to blink. It has and.

  The airbag device control means 9-4 is configured to detect whether or not the detection sensor or inflator of the airbag device operates normally. When an abnormality occurs, the airbag device control means 9-4 sends a signal to the switch means 9-1. The switch means 9-1 is operated, the LED chip 5 is blinked, and an abnormality of the airbag device is notified.

  Thus, when the manual switch is turned on or the automatic switch is turned on by the switch signal on the airbag device control means 9-4 side, when the switch means 9-1 senses this turning on, the current of the power supply is connected to the connecting flat cable 6. -3 and the flat cable 10 are led to the LED chip 5 to light or blink the LED chip 5, and the light projected from the LED chip 5 is diffused directly or by the light diffusion plate 4 and the gap 8 and the gap It will guide to the part 8-1 and will light-emit the gap part 8 and the gap part 8-1.

  As a result, the gap 8 surrounds the outer periphery of the emblem 2 and the gap 8-1 is also illuminated. Therefore, the outer shape of the emblem 2 and the inner wall shape of the central hole 2-1 are changed to a donut by indirect illumination light. As a result, the aesthetics can be improved as a uniform so as to fit around the cockpit of an automobile.

  Further, since the real image of the outer shape of the emblem 2 can be indirectly indirectly shown even if the shape of the gap portion 8 is not formed so accurately, the emblem installation portion 3 is formed into a somewhat rough shape. In addition, it is possible to reduce the number of man-hours for managing the production of the mold of the airbag cover 1.

  Further, the emblem 2 is mounted on the bottom portion 3b of the emblem installation portion 3 together with the emblem mounting plate 7 with the light diffusing plate 4 and the light emitting substrate 6 interposed therebetween using the mounting leg portion 2a formed thereon. Therefore, even if the airbag 4 is inflated and deployed when the automobile collides and the airbag cover 1 is cleaved from the tear line 1c, it remains attached to the airbag cover 1 as shown in FIG. Never jump out alone.

  Furthermore, by installing the light emitting substrate 6 in the emblem installation unit 3, the LED chip 5 is also installed at the same time, so that the LED chip 5 can be easily installed and the number of installation steps can be reduced.

  Next, another embodiment according to the present invention will be described with reference to FIGS.

  First, according to the second embodiment of the present invention shown in FIG. 8, the light diffusing reflection portion 4A constituting the light diffusing plate is formed on the back surface side of the emblem 2 having a light shielding structure by making it opaque or the like. The light diffused and reflected from the LED chip 5 is diffused by the light diffusing and reflecting part 4A so that the distance between the light diffusing and reflecting part 4A and the LED chip 5 is slightly separated. As described above, the light diffusing plate 4 in the first embodiment is abolished, and the other configurations are the same as those in the first embodiment. .

  According to the third embodiment of the present invention shown in FIG. 9, a thin plate-like reflecting member 4 </ b> B constituting a light diffusion plate is stretched between the light emitting substrate 6 and the LED chip 5, and the LED chip 5. After reflecting the light projected by the reflecting member 4B, the gap portion 8 and the gap portion 8-1 are illuminated, and the light emitting substrate 6 uses the adhesive member 11 for the emblem installation portion. 3 is affixed to the bottom 3b, and the mounting by the mounting leg 2a-2 in the first embodiment is abolished. As a result, the emblem mounting plate 7 is not used.

  According to the fourth embodiment of the present invention shown in FIG. 10, a portion of the flat cable 10 according to the first embodiment that protrudes outside from the emblem installation portion 3 is attached to the airbag by the adhesive member 12. The other structure is the same as that of the first embodiment except that it is attached to the back surface of the cover 1.

  According to the fifth embodiment of the present invention shown in FIGS. 11 and 12, instead of the LED chip 5 as the light emitter in the first embodiment, for example, a disk-shaped EL sheet 5-1 Unlike the LED chip 5, it is installed in the emblem installation part 3 without a gap between the light diffusing plate 4 and the emblem 2.

  Since the entire EL sheet 5-1 emits light when receiving a current from the power source 9-2 through the flat cable 10, the portion protruding from the emblem installation unit 3 is leaked by the masking unit 5-1a. It is shielded not to.

  Therefore, when the EL sheet 5-1 projects, the light projected from the EL sheet 5-1 is changed to the light diffusion plate 4 in the first embodiment, and the gap portion 8 is passed through the transparent plate 4-1. And it guide | induces to the clearance gap part 8-1, and it light-emits the clearance gap part 8 and the clearance gap part 8-1. At this time, the back side of the emblem 2 is painted on the light reflecting surface by painting black or the like, and the light diffusion plate 4 is used instead.

  According to the sixth embodiment of the present invention shown in FIG. 13, the LED chip 5 used in the first embodiment or the like as the light emitter is used in the fifth embodiment. An optical fiber 5-2 is used instead of the EL sheet 5-1, and an optical fiber installation portion 2a-4 is formed by cutting out the lower corner portion of the emblem 2, and the optical fiber is installed in the optical fiber installation portion 2a-4. 5-2 is inserted and installed, and the optical fiber 5-2 is configured to illuminate the gap 8 by facing the gap 8.

  Accordingly, the light diffusing plate 4 in the first embodiment is not used.

  According to the seventh embodiment of the present invention shown in FIGS. 14 and 15, the center of the emblem 2 is formed by forming the masking portion (see oblique line view) 2c on the upper surface except for the central portion 2b of the emblem 2. Since it has the same configuration as that of the first embodiment except that the portion 2b is also illuminated and the column portion 3a of the emblem 2 is eliminated, detailed description will be given with the same reference numerals. Omit.

  According to the eighth embodiment of the present invention shown in FIG. 16, the emblem installation portion 3 in the airbag cover 1 is not formed by being recessed as in the above embodiment, but is formed from a transparent material. The upper surface of the light diffusing plate 4 is raised and formed separately from the airbag cover 1, and correspondingly, it is made opaque by applying an opaque material or black or the like. The emblem 2 formed in a bowl shape is fitted so as to be installed.

  The light diffusing plate 4 has a mounting leg 2a protruding at the center of the back surface of the light diffusing plate 4, and the mounting leg 2a is attached to the airbag cover 1 with the light emitting substrate 6 on which the LED chip 5 is mounted interposed therebetween. It is attached to the airbag cover 1 by being inserted to the back surface side of the bag and engaging with the emblem mounting plate 7.

  Furthermore, the light diffusing plate 4 and the light emitting substrate 6 are adhered to the airbag cover 1 by the adhesive member 2h.

  Therefore, the light projected from the LED chip 5 illuminates the gap portion 8 formed in the outer peripheral portion of the light diffusing plate 4 where the emblem 2 is not covered, and indirectly shapes the outer shape of the emblem body 2. It will be projected.

  17 and 18 show an embodiment of the illumination pattern of the emblem according to the present invention. First, the one shown in FIG. 17 projects the outer peripheral portion of the emblem 2 as in the above embodiment. In the emblem 2, for example, the outer frame portion surrounding the character 8 representing the company emblem and the outline portion of the character 8 are made transparent to form a gap 8-1 so that the character 8 is also projected. 18 is formed in the gap portion 8-1 by making the outer frame portion surrounding the character 8 and the character 8 itself transparent to form the character 8. It is configured to project.

  Next, still another embodiment will be described with reference to FIGS.

  In each of the above-described embodiments, the light projected from the LED chip 5 is transmitted through the gap 8 or the gap 8-1 to improve aesthetics. However, for example, when foreign matter such as water is mixed through the gap 8 or the gap 8-1, the gap 8 or the gap 8-1 and the light emitting substrate 6 are not blocked. May reach the light emitting substrate 6 and the LED chip 5, and may cause adverse effects such as corrosion of the light emitting substrate 6 and the LED chip 5 and malfunction due to an electrical short circuit.

  Therefore, in the following embodiment, in order to prevent adverse effects on the light emitting substrate 6 and the LED chip 5 by mixing foreign matter into the emblem installation part 3 through the gap part 8 or the gap part 8-1, A light emitter cover 14 a is disposed between the light emitting substrate 6 and the emblem 2 so as to encapsulate the light emitting substrate 6 and each LED chip 5 mounted on the light emitting substrate 6.

  FIG. 19 is a view corresponding to the EE cross section of FIG. 1 adopting the ninth embodiment. As shown in FIG. 19, in the ninth embodiment, light emission is performed so as to encapsulate the light emitting substrate 6 and each LED chip 5 mounted on the light emitting substrate 6 between the light emitting substrate 6 and the emblem 2. A body cover 14a is arranged. The light emitter cover 14a is preferably made of a transparent or semi-transparent material, and is preferably made of a shape and material that does not crack or break even when bent.

  That is, the light emitter cover 14a may be manufactured using, for example, a thermoplastic resin. More specifically, polycarbonate resin (PC), polyethylene terephthalate resin (PET), polypropylene resin (PP), polyethylene resin (PE), vinyl chloride resin, or the like may be used for manufacturing by vacuum molding.

  The airbag device in the ninth embodiment is provided with a light emitter cover 14a instead of the light diffusing plate 4 in the first embodiment, and other configurations are the same as those in the first embodiment. Therefore, the same reference numerals are attached and detailed description is omitted.

  FIG. 20 is an exploded perspective view in which only the light emitting substrate 6 and the light emitter cover 14a on which the LED chips 5 are mounted are extracted and shown from the respective parts constituting the airbag device according to the ninth embodiment.

  As shown in FIG. 20, the light emitter cover 14 a is formed with a convex annular raised portion 14 b so as to cover the LED chip 5.

  The surface of the raised portion 14b on the emblem 2 side is subjected to light diffusion processing, and the light projected from the LED chip 5 is guided to the gap portion 8, and the gap portion 8 emits light.

  The light diffusion processing is preferably performed, for example, by performing unevenness processing, jagged processing, granular processing, silk printing processing using a diffusion coating material such as titanium oxide, or offset printing processing on the surface on the emblem 2 side of the raised portion 14b. .

  The annular ridge 14b is formed by light diffusing the surface on the emblem 2 side so that the light projected from the LED chip 5 is efficiently diffused in an annular shape, so that the appearance around the cockpit of the automobile is improved. , Aesthetics can be improved.

  Further, the protruding portion 14b is formed with an insertion port 14c at a position corresponding to the pair of mounting leg portions 2a projecting from the back surface side of the emblem 2, and the mounting leg portion 2a is inserted through the insertion port 14c, and the light emitting substrate is formed. The engagement hole 7c provided in the emblem mounting plate 7 disposed on the back side of the bottom 3b of the emblem installation part 3 through the insertion opening 6c provided in 6 and the insertion opening 3c provided in the bottom 3b of the emblem installation part 3 Engage with.

  Thereby, in the emblem installation part 3, the emblem 2 is attached to the airbag cover 1 together with the light emitter cover 14a.

  As described above, according to the ninth embodiment, the light emitter cover 14 a is arranged so as to enclose each LED chip 5 mounted on the light emitting substrate 6.

  Therefore, for example, it is possible to prevent foreign matters from being mixed into the light emitting substrate 6 and the LED chip 5 through the gap portion 8 and causing adverse effects such as corrosion of the light emitting substrate 6 and the LED chip 5 and malfunction due to an electrical short. Can do.

  For example, even if the user performs an act such as wiping off the deposit on the pad with a wet cloth, or using chemicals such as armor oil, the foreign matter may cause the light emitting substrate 6 or the LED chip to be removed. 5 can be prevented.

  Further, according to the ninth embodiment, since the LED chip 5 and the light emitting substrate 6 are protected by the light emitter cover 14a that is the envelope cover, the LED chip 5 and the LED 5 are electrically connected to the light emitting substrate. Therefore, it is not necessary to give the lead wire for strengthening more than necessary.

  In the ninth embodiment, the example in which the raised portion 14b encapsulating the LED chip 5 is formed in an annular shape has been described. However, the shape of the raised portion 14b is not limited to an annular shape, and for example, as shown in FIG. 21, by forming the protruding portions 14d intermittently at positions facing the LED chips 5 of the light emitter cover 14a, You may make it comprise a protruding part.

  In the ninth embodiment, the example in which the surface of the raised portion 14b is subjected to light diffusion processing in order to cause the light emitter cover 14a to function as a light diffusion plate has been described. However, a light diffusing plate may be provided in addition to the light emitter cover 14a without subjecting the surface of the raised portion 14b to light diffusion processing.

  In the gap portion 8 in the embodiment according to the present invention, a transparent material such as acrylic may be embedded to constitute a light transmitting portion.

  As described above, according to the present invention, the light beam emitted from the light source installed on the back surface of the airbag cover illuminates the gap formed between the outer periphery of the emblem and the emblem installation part, and the outer shape of the emblem The shape is projected by a light frame with indirect illumination light, so that the aesthetics around the cockpit of an automobile can be improved as a unified one, and the shape of the gap is formed very accurately. Even if it is not necessary, the real image of the outer shape of the emblem can be indirectly indirectly shown, so the emblem installation part may be molded into a somewhat rough shape, and the mold production management man-hours of the mold for the airbag cover can be reduced. An airbag device having an airbag cover that can be reduced as the airbag is inflated and deployed, and more particularly, a vehicle steering system. It can be said to be suitable for an air bag device and the like is attached to ring.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view of a steering wheel for an automobile provided with an airbag device adopting Embodiment 1 according to the present invention. It is a disassembled perspective view of the airbag cover of FIG. It is a back surface side perspective view of the air bag cover drawn by adding the alarm display circuit of the outline composition of the air bag device. It is AA sectional drawing in FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is an enlarged view in the B circle of FIG. It is CC sectional drawing of FIG. It is sectional drawing similar to FIG. 6 which employ | adopted 2nd Embodiment based on this invention. It is sectional drawing similar to FIG. 6 which employ | adopted 3rd Embodiment based on this invention. It is sectional drawing similar to FIG. 6 which employ | adopted 4th Embodiment based on this invention. It is a perspective view of the EL sheet which employ | adopted 5th Embodiment based on this invention. Similarly, it is sectional drawing similar to FIG. 6 in 5th Embodiment based on this invention. It is sectional drawing similar to FIG. 7 in the 6th Embodiment which concerns on this invention. It is a disassembled perspective view of the airbag cover in 7th Embodiment based on this invention. It is DD sectional drawing of FIG. It is sectional drawing similar to FIG. 6 in 8th Embodiment based on this invention. It is explanatory drawing which drew an example of the illumination pattern of the emblem which concerns on this invention. It is explanatory drawing which drawn the other example of the illumination pattern of the emblem which concerns on this invention. It is a figure equivalent to the EE cross section of FIG. 1 in 9th Embodiment which concerns on this invention. It is a disassembled perspective view of the light emission board | substrate with which the LED chip was mounted, and the covering body cover. It is a perspective view which shows an example of the covering body cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Airbag cover 2 Emblem 2a Attaching leg part 3 Emblem installation part 4 Light diffusing plate 4A Light diffusing part (light diffusing plate)
4B Reflective member (light diffusion plate)
5 LED chip (light source)
5-1 EL sheet (light source)
5-2 Optical fiber (light source)
6 Light-emitting substrate 7 Emblem mounting plate 8 Gap (translucent part)
13 Steering wheel 13a Pad part 14a Light emitter cover (cover cover)
14b protuberance 14d protrusion (protrusion)

Claims (9)

  An airbag device comprising an airbag cover that is torn along with the inflation and deployment of the airbag, wherein the airbag cover is provided with an integral or separate emblem installation portion, and the emblem installation portion is provided with the emblem, The airbag apparatus characterized by forming the translucent part illuminated by the light ray which the light source installed in the said emblem installation part emitted between this emblem outer peripheral part and the said emblem installation part.   The airbag device according to claim 1, wherein the translucent part is configured by a gap part formed between an outer peripheral part of the emblem and the emblem installation part.   2. A light diffusing plate is disposed between the light source and the emblem so that light emitted from the light source is guided to the gap by the light diffusing plate and illuminated. Or the airbag apparatus of Claim 2.   The airbag device according to claim 1, wherein the light source is configured by a light emitting element mounted on a substrate, and the substrate is installed in the emblem installation unit.   An enveloping body made of a member that transmits light emitted from the light emitting element is disposed between the substrate and the emblem, and the light emitting element is encapsulated together with the substrate. The airbag device according to any one of claims 1 to 4.   A mounting leg is formed to project from the back side of the emblem, and the tip of the mounting leg is inserted into and projected from the back side of the airbag cover, and the emblem is inserted into the tip of the mounting leg that is inserted and projected. The airbag apparatus according to any one of claims 1 to 5, wherein the emblem is attached to the emblem installation portion by engaging a fixing plate.   The emblem installation part forms a recessed part for fitting the emblem to the airbag cover, and fits the emblem into the recessed part, and between the outer peripheral part of the emblem and the recessed part. The airbag apparatus according to any one of claims 1 to 6, wherein the gap portion is formed.   The emblem installation portion is formed by raising the surface side of the light diffusion plate, the emblem is installed on the light diffusion plate by fitting the emblem to the emblem installation portion, and the emblem installation portion The airbag device according to any one of claims 1 to 6, wherein a portion projecting from an outer peripheral portion of the emblem is formed, and the projecting portion is configured as the gap portion. The airbag apparatus according to any one of claims 1 to 8, wherein the airbag cover is provided on a pad portion of a steering wheel.