WO2011108477A1 - 車両用内装パネル及びエアバッグ装置 - Google Patents
車両用内装パネル及びエアバッグ装置 Download PDFInfo
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- WO2011108477A1 WO2011108477A1 PCT/JP2011/054452 JP2011054452W WO2011108477A1 WO 2011108477 A1 WO2011108477 A1 WO 2011108477A1 JP 2011054452 W JP2011054452 W JP 2011054452W WO 2011108477 A1 WO2011108477 A1 WO 2011108477A1
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- WIPO (PCT)
- Prior art keywords
- welding
- communication groove
- welding rib
- vehicle interior
- rib
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/234—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being in the form of tessellations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/342—Preventing air-inclusions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
- B29C66/9512—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
- B29C66/9516—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration amplitude
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3038—Air bag covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
- B60R2021/21537—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by hinges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
- B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
Definitions
- the present invention relates to a vehicle interior panel and an airbag device mounted on a vehicle such as an automobile, and more particularly to a vehicle interior panel and an airbag device that are joined using vibration welding.
- an interior panel for a vehicle to which a vehicle airbag device is mounted includes an inner case having an opening for releasing an airbag and having a flap portion formed in the opening via a hinge portion,
- An outer panel that covers the surface of the inner case and includes a door portion joined to the flap portion is joined by vibration welding. And on one of the joint surfaces of the flap part or the door part, it is arranged so as to form a plurality of first welding ribs arranged substantially parallel to the hinge part, and a plurality of lattices with the first welding ribs.
- a plurality of second welding ribs and a third welding rib arranged in a frame shape along the outer edge of the door portion are formed.
- An interior panel for a vehicle with a skin as described in Patent Document 1 includes a base material (outer panel), a skin adhered to the surface of the base material, and a resin structure (inner case) welded to the back surface of the base material.
- the substrate is formed with a through hole for discharging air from between the substrate and the skin to the back side of the substrate when the skin is adhered, and one of the substrate and the structure protrudes from the one.
- vibration welded lattice-shaped welding ribs are formed, and the welding ribs are provided with communication passages that communicate the through holes with the outside air.
- the present invention was devised in view of the above-described problems, and an object thereof is to provide a vehicle interior panel and an airbag device that can suppress a decrease in welding strength and a decrease in panel rigidity.
- an inner case having an opening for releasing an airbag and having a flap formed in the opening via a hinge, and covering the surface of the inner case and joining the flap
- a plurality of flaps or a joint surface of the door portion are arranged substantially in parallel with the hinge portion.
- first welding rib has a first communication groove communicating between adjacent lattices
- second welding rib communicates between adjacent lattices.
- the third welding rib has a third communication groove formed on a side substantially perpendicular to the hinge portion, and the second communication groove is continuous in a direction perpendicular to the second welding rib.
- the first to third communication grooves are formed so as to constitute an exhaust path capable of discharging the air in the lattice to the outside during vibration welding.
- an airbag that is inflated and deployed in an emergency, an inflator that supplies gas to the airbag, a retainer that holds the inflator and the airbag, the retainer can be locked, and the airbag
- An airbag device having a vehicle interior panel configured to be able to release the bag into the vehicle, wherein the vehicle interior panel constitutes an opening portion for releasing the airbag and has a hinge portion at the opening portion.
- the air bag apparatus is characterized in that the first to third communication grooves are formed so as to constitute an exhaust path capable of dis
- the second communication groove is formed, for example, at a position separated from the hinge portion by at least one lattice.
- the third communication groove is formed, for example, at a position separated from the corner of the third welding rib by at least one lattice.
- the second welding rib constituting the boundary portion of the exhaust path may not have the second communication groove.
- the inner case has a flange portion formed on the outer periphery of the opening, and a joint surface of the flange portion includes a fourth welding rib disposed substantially in parallel with the first welding rib, and the first case.
- a fifth welding rib disposed substantially parallel to the second welding rib, a sixth welding rib disposed in a frame shape along the outer edge of the flange portion, and a frame shape along the inner edge of the flange portion.
- a seventh welding rib disposed, and the fourth to sixth welding ribs exhaust air inside the lattice surrounded by the fourth to seventh welding ribs during vibration welding. Possible fourth to sixth communication grooves may be formed respectively.
- the fourth welding rib has a fourth communication groove that communicates between adjacent lattices, and the fifth welding rib is adjacent to the joint surface located outside the hinge portion of the flange portion.
- a fifth communication groove that communicates between the lattices may be provided, and the fifth communication groove may be formed so as not to line up continuously in a direction orthogonal to the fifth welding rib.
- the vehicle interior panel and the airbag apparatus when vibration welding is performed, air in the lattice can be released to the outside through the exhaust path, and the welding strength between the outer panel and the inner case can be reduced. The decrease can be suppressed.
- the second communication groove is not continuously arranged in the direction perpendicular to the second welding rib, the strength in the direction of the second welding rib can be increased, and the rigidity of the entire panel can be reduced. Can be suppressed. Further, it is not necessary to perform excessive vibration welding, and the vehicle interior panel and the airbag device can be easily manufactured.
- the strength of the portion adjacent to the hinge portion where a large stress is applied when the airbag is inflated and deployed is effectively increased.
- the panel rigidity can be improved.
- the corner of the door is easily subjected to a large external force when the airbag is inflated and deployed.
- the strength can be effectively improved, and the panel rigidity can be improved.
- the second communication groove in the second welding rib constituting the boundary portion of the exhaust path
- a plurality of exhaust paths can be easily formed, and any exhaust path can be easily formed. Can be designed.
- the welding strength can be partially improved, and the panel rigidity can be improved.
- the fourth through sixth welding ribs can be used to form the fourth communication groove.
- lattice formed by the 7th welding rib can be easily escaped outside, and the fall of the welding strength of a flange part can be suppressed.
- the fifth communication groove is formed so as not to line up continuously in the direction orthogonal to the fifth weld rib, The strength in the direction can be increased, and a decrease in the rigidity of the entire panel can be suppressed.
- FIG. 3 is an enlarged view of a portion III in FIG. It is a figure which shows the exhaust path from which the air in the grating
- A is an airbag expansion initial stage
- B is an outer panel tearing stage
- C is a door part rotation stage
- D is a door rotation end stage.
- A is an airbag expansion initial stage
- B is an outer panel tearing stage
- C is a door part rotation stage
- D is a door rotation end stage.
- FIG. 1 is a view showing an airbag device according to an embodiment of the present invention, in which (A) is a cross-sectional view and (B) is a front view.
- 2 is a view showing the inner case of FIG. 1, in which (A) is a front view and (B) is a rear view.
- FIG. 3 is an enlarged view of a portion III in FIG.
- the airbag apparatus 1 shown in FIG. 1 is an embodiment in the case where the present invention is applied to an airbag apparatus for a passenger seat installed on the vehicle body side of an instrument panel 2 disposed on the front surface of the passenger seat. Show.
- the airbag apparatus 1 includes an airbag 3 (see FIG. 5) that is inflated and deployed in an emergency, an inflator 4 that supplies gas to the airbag 3, an inflator 4, A retainer 5 that holds the airbag 3 and a vehicle interior panel 6 configured to be able to lock the retainer 5 and to release the airbag 3 into the vehicle.
- the illustration of the airbag 3 is omitted for convenience of explanation.
- the inflator 4 may be held outside the retainer 5 without being housed in the retainer 5.
- the vehicle interior panel 6 comprises an opening 7a for releasing an airbag, a flap 7c formed on the opening 7a via a hinge 7b, and a flange 7d formed on the outer periphery of the opening 7a.
- the inner case 7 having the outer surface 8 and the outer panel 8 having a door portion 8a that covers the surface of the inner case 7 and is joined to the flap portion 7c are joined by vibration welding, and the flap portion 7c is joined.
- first welding ribs 7e On the surface, a plurality of first welding ribs 7e arranged substantially parallel to the hinge portion 7b, a plurality of second welding ribs 7g arranged so as to form a first welding rib 7e and a plurality of lattices 7f, A third welding rib 7h arranged in a frame shape along the outer edge of the flap portion 7c is formed, and the first welding rib 7e has a first series of grooves 7i communicating between the adjacent lattices 7f and 7f.
- the two welding ribs 7g have a second communication groove 7j communicating between the adjacent lattices 7f, 7f, and the third welding rib 7h has a third communication groove 7k formed on a side substantially perpendicular to the hinge portion 7b.
- the second communication groove 7j is formed so as not to be continuously arranged in a direction orthogonal to the second welding rib 7g.
- the first communication groove 7i to the third communication groove 7k are formed in the lattice 7f during vibration welding. It is formed so that the exhaust path which can discharge
- the direction in which each welding rib was formed is displayed with the broken line in order to make it easy to understand the arrangement of the welding rib and the communication groove.
- the instrument panel 2 is generally inclined such that the front side in the vehicle front-rear direction is high and the rear side is low, and an airbag discharge opening 2a is formed in a substantially rectangular shape in the middle. Further, a recess 2b for mounting the outer panel 8 is formed on the outer periphery of the opening 2a, and a retaining hole into which a plurality of clips 8c provided on the outer panel 8 are inserted is formed in the recess 2b.
- the recess 2b is formed in a substantially vertical direction with respect to the inclined surface of the instrument panel 2.
- the present invention is not limited to this configuration, and the recess 2b is set in a substantially vertical direction. You may make it form.
- the opening part 2a of the instrument panel 2 is covered by fitting the outer panel 8 in the recessed part 2b. Therefore, the surface of the outer panel 8 forms a vehicle interior surface, and forms a part (surface side portion) of the vehicle interior panel 6.
- the outer panel 8 may be formed integrally with the instrument panel 2.
- the inner case 7 is vibration welded to the back surface of the outer panel 8 to form a part (the back side portion) of the vehicle interior panel 6.
- the inner case 7 has a function of locking the retainer 5 and holding the door portion 8a of the outer panel 8 that is cleaved when the airbag 3 is inflated and deployed.
- the inner case 7 includes a side wall 71 arranged in a rectangle that forms an opening 7a for releasing an airbag.
- the side wall 71 has a plurality of locking holes 72 so that the hooks 5a connected to the retainer 5 are locked.
- a plurality of reinforcing ribs 71a may be formed on the outer periphery of the side wall 71.
- the inner case 7 includes a flange portion 7d welded to the fixed portion 8b of the outer panel 8, a pair of flap portions 7c welded to the door portion 8a, and a flange portion. 7d and a pair of hinge portions 7b formed between the two flap portions 7c.
- the hinge portion 7b has, for example, a substantially U shape so as to be convex toward the vehicle body.
- the hinge portion 7b has a function of opening the doors 8a without causing the door portion 8a of the outer panel 8 to scatter when the airbag 3 is inflated.
- the first welding rib 7e, the second welding rib 7g, and the third welding rib 7h are formed on the joint surface of the flap portion 7c.
- a plurality of substantially lattice-like spaces (lattice 7f) are formed by 7e to third welding ribs 7h.
- a plurality of communication grooves are formed so that the lattice 7f does not form a closed space during vibration welding, thereby forming an air escape path (exhaust path).
- the number and shape (height, width, etc.) of the first welding rib 7e and the second welding rib 7g are not limited to those shown in the figure, but the type, size, internal pressure, and vehicle for the airbag 3 It is appropriately set depending on conditions such as stress applied to the joint surface of the interior panel 6.
- the first welding rib 7e is disposed substantially parallel to the hinge portion 7b, and has a function of maintaining the welding strength in a direction (horizontal direction in the drawing) substantially perpendicular to the rotation direction (vertical direction in the drawing) of the flap portion 7c.
- a direction horizontal direction in the drawing
- vertical direction in the drawing vertical direction in the drawing
- the load generated when the airbag 3 is inflated and deployed is less than the rotation direction (up-down direction in the figure) of the flap portion 7c. Even if the first continuous passage groove 7i is formed so as to pass through the first welding rib 7e, the influence on the rigidity of the vehicle interior panel 6 is small.
- the first continuous groove 7i is formed so as to communicate between the adjacent lattices 7f and 7f.
- the first continuous groove 7i is formed so as not to pass through the third welding rib 7h. Since the third welding rib 7h is a portion that maintains the rigidity of the outer edge of the flap portion 7c, it is not preferable to pass the first continuous groove 7i vertically through the third welding rib 7h.
- the second welding rib 7g is disposed substantially perpendicular to the hinge portion 7b and has a function of maintaining the welding strength in the rotation direction (vertical direction in the figure) of the flap portion 7c.
- the second communication groove extends vertically through the plurality of second welding ribs 7g. If 7j is formed, the rigidity of the vehicle interior panel 6 will decrease too much. Therefore, the second communication groove 7j is formed so as not to be continuously arranged in the direction orthogonal to the second welding rib 7g (the left-right direction in the figure).
- the second communication groove 7j is formed, for example, every other one, every two, or every third.
- the second communication groove 7j is also formed to be separated by at least one lattice 7f in the direction (vertical direction in the drawing) in which the second welding rib 7g is formed.
- the second communication groove 7j is formed at a position separated from the hinge portion 7b by at least one lattice. Therefore, the strength of the portion adjacent to the hinge portion 7b of the flap portion 7c to which a large stress is applied when the airbag 3 is inflated and deployed can be increased. Further, by forming the second communication groove 7j on the front end side of the flap portion 7c, the strength on the front end side becomes lower than that on the hinge portion 7b side, so that it can be easily bent and is suitable for inflating and deploying the airbag 3. The elasticity can be imparted to the flap portion 7c.
- the second welding rib 7g substantially at the center of the flap portion 7c constituting the boundary portion of the exhaust path does not have the second communication groove 7j.
- a plurality of exhaust paths can be easily formed, and the air in the lattice 7f is exhausted to the outside in an arbitrary direction. be able to.
- the third welding rib 7h is arranged in a frame shape along the outer edge of the flap portion 7c, if the communication groove is not formed somewhere in the third welding rib 7h, the first series of grooves 7i and the second Even if the communication groove 7j is formed, the air in the lattice 7f cannot escape to the outside during vibration welding. Therefore, in the present embodiment, the third communication groove 7k is formed at a substantially central portion of a portion constituting a side substantially perpendicular to the hinge portion 7b of the third welding rib 7h.
- the portion constituting the side substantially parallel to the hinge portion 7b of the third welding rib 7h is a side constituting the side adjacent to the hinge portion 7b and the tip end portion of the flap portion 7c.
- the third communication groove 7k is formed in a portion constituting a side substantially parallel to the hinge portion 7b. ing.
- the corners of the flap portion 7c are also portions where stress and external force are easily applied when the airbag 3 is inflated and deployed. Therefore, it is preferable that the third communication groove 7k is formed at a position separated from the corner of the third welding rib 7h by at least one lattice. As a result, in the present embodiment, the third communication groove 7k is formed at a substantially central portion of a portion constituting a side substantially perpendicular to the hinge portion 7b of the third welding rib 7h.
- the inner case 7 has a flange portion 7d formed on the outer periphery of the opening 7a, and the joint surface of the flange portion 7d has a fourth welding rib 7l disposed substantially parallel to the first welding rib 7e, A fifth weld rib 7m disposed substantially parallel to the second weld rib 7g, a sixth weld rib 7n disposed in a frame shape along the outer edge of the flange portion 7d, and a frame shape along the inner edge of the flange portion 7d A fourth welding rib 7l to a sixth welding rib 7n in the lattice surrounded by the fourth welding rib 7l to the seventh welding rib 7o during vibration welding. A fourth communication groove 7p to a sixth communication groove 7r capable of discharging air to the outside are formed.
- the flange portion 7d is formed so as to surround the outer periphery of the opening portion 7a, and is connected to the flap portion 7c via the hinge portion 7b.
- the fourth weld rib 7l is located between the adjacent lattices 7f and 7f at the portion shaded by the flange portion 7d, that is, at the joint surface 73 located outside the hinge portion 7b of the flange portion 7d. It has a fourth communication groove 7p that communicates, and the fifth welding rib 7m has a fifth communication groove 7q that communicates between the adjacent lattices 7f, 7f, and the fifth communication groove 7q is orthogonal to the fifth welding rib 7m.
- the joint surface 73 is a portion located on the extension line of the flap portion 7c, and since a large stress is applied when the airbag 3 is inflated and deployed, the first series of grooves 7i to 3rd formed in the flap portion 7c.
- the communication groove is formed in the same way as the communication groove 7k.
- the stress applied to the joint surface other than the joint surface 73 of the flange portion 7d is smaller than the joint surface 73 when the airbag 3 is inflated and deployed, the air in the lattice 7f is not confined during vibration welding. It is sufficient if an exhaust path is formed in the front. Therefore, as shown in FIG. 2A, in the present embodiment, only the fifth communication groove 7q is formed on the joint surface other than the joint surface 73 of the flange portion 7d without forming the fourth communication groove 7p. Alternatively, the fifth communication groove 7q may be formed continuously.
- the fourth communication groove 7p to the sixth communication groove 7r may be formed on the joint surface other than the joint surface 73 of the flange portion 7d based on the same concept as the joint surface 73.
- the seventh welding rib 7o is a portion surrounding the opening 7a, and it is necessary to increase the rigidity. Therefore, it is preferable not to form a communication groove in the seventh welding rib 7o. It is preferable that the air is exhausted outward from a sixth communication groove 7r appropriately formed in the sixth welding rib 7n.
- the outer panel 8 is mounted in the recess 2b so as to cover the opening 2a, and is fixed to the instrument panel 2 with a clip 8c. Therefore, the frame portion 8 d that forms the outer peripheral portion of the outer panel 8 is molded into a shape suitable for the concave portion 2 b of the instrument panel 2. Specifically, in the embodiment shown in FIG. 1 (A), it is molded in a direction substantially perpendicular to the inclined surface of the instrument panel 2. A plurality of notches 8e are formed on the vehicle body side surface of the outer panel 8 so that the outer panel 8 can be easily broken when the airbag is deployed.
- the outer panel 8 is divided into a fixing portion 8b and a pair of door portions 8a by the notches 8e.
- the notch 8e constitutes a so-called tear line.
- the inner case 7 and the outer panel 8 described above are vibration welded by, for example, the following steps. (1) Place the outer panel 8 on the pedestal of the vibration welding machine so that the inner surface (vehicle body side surface) of the outer panel 8 faces up. (2) The inner case 7 is placed on the outer panel 8 with the joint surface side down. (3) The inner case 7 is pressurized by pressing the joint surface of the inner case 7 against the pedestal from above with a vibration welding machine. (4) While maintaining the pressurized state, the inner case 7 is reciprocally vibrated in a predetermined vibration direction by a vibration welding machine.
- the vibration welding conditions vary depending on the type of resin or product to be welded, and can be arbitrarily set. Further, an ultrasonic welder may be used instead of the vibration welder.
- FIG. 4 is a diagram showing an exhaust path through which air in the lattice of the inner case escapes in the vibration welding process.
- an air escape path can be formed along the exhaust path indicated by an arrow in FIG.
- the air in the lattice 7f can be exhausted to the outside. Therefore, the air in the lattice 7 f loses its escape and the air does not enter the joint surface between the inner case 7 and the outer panel 8, and it is possible to suppress a decrease in welding strength and variations.
- the vehicle interior panel 6 can be manufactured with less labor than before, and the time and cost required for manufacturing the vehicle interior panel can also be reduced.
- FIG. 5 is a view showing the operation of the airbag device shown in FIG. 1 when the airbag is deployed
- A is the initial stage of airbag inflation
- B is the outer panel tearing stage
- C Is the door rotation stage
- D is the door rotation end stage.
- FIG. 6 is a front view of the airbag device in the state of FIG.
- the initial stage of airbag inflation shown in FIG. 5 (A) is a stage in which the airbag 3 is inflated inside the inner case 7 and presses the joint surface of the vehicle interior panel 6.
- the airbag device 1 supplies gas from the inflator 4 to the airbag 3 when it receives a predetermined signal from an ECU (electronic control unit) that senses or detects a vehicle collision or the like.
- the airbag 3 is inflated in the direction of the arrow in the figure, and comes into contact with and presses the flap portion 7c of the inner case 7.
- the outer panel cleavage stage shown in FIG. 5 (B) is a stage in which the airbag 3 presses the joint surface of the vehicle interior panel 6 and tears the outer panel 8 into the fixed portion 8b and the two door portions 8a.
- the depth of the notch 8e and the outer panel 8 are set so that the notch 8e between the door portion 8a and the door portion 8a is easier to tear than the notch 8e between the fixed portion 8b and the door portion 8a.
- the thickness is set.
- the door portion 8a of the outer panel 8 is finally cut off from the fixed portion 8b, but the flap portion 7c of the inner case 7 is connected via the hinge portion 7b so as not to scatter. .
- the door rotation stage shown in FIG. 5C is a stage in which the door 8a rotates toward the fixed part 8b around the hinge 7b as the airbag 3 expands. At this time, the hinge part 7b is pushed up by the expansion of the airbag 3 and extends upward.
- the flap portion 7c is formed with the above-mentioned first welding rib 7e to third welding rib 7h, and each of the welding ribs is formed with the above-described first communication groove 7i to third communication groove 7k. Therefore, as shown in FIG. 6, the front end side of the flap portion 7 c is configured to be cleaved while being appropriately bent by the pressing force of the airbag 3, and to prevent the flap portion 7 c from being damaged. .
- the hinge portion 7b side of the flap portion 7c is configured to have a higher strength than the distal end side, and is difficult to bend. Therefore, the stress applied to the hinge portion 7b can be reduced, and the hinge portion 7b It is comprised so that breakage can be suppressed.
- the vehicle interior panel 6 according to the embodiment of the present invention, it is possible to easily obtain the welding strength and rigidity of the joint surface necessary and sufficient for the inflation and deployment of the airbag 3.
- the door part rotation end stage shown in FIG. 5D is a stage where the door part 8a is bent toward the fixed part 8b. In such a stage, even if the door portion 8a and the fixed portion 8b come into contact with each other due to the rotational force of the door portion 8a, the joint surface between the door portion 8a and the flap portion 7c is vibrated uniformly and firmly. And having a certain rigidity, it is possible to prevent the joint surface from being peeled off or partially broken due to the impact of contact.
- FIG. 7 is a figure which shows the modification of the vehicle interior panel which concerns on this invention, (A) is a 1st modification, (B) is a 2nd modification.
- A is a 1st modification
- B is a 2nd modification.
- symbol is attached
- FIG. 7A illustrates the back surface (joint surface) of the outer panel 8. That is, in the first modification of the vehicle interior panel 6, the first welding rib 7e to the seventh welding rib 7o and the first series of communication grooves 7i to the sixth communication groove 7r are formed on the joint surface (back surface) of the outer panel 8. It is a thing. Also in this first modified example, the same effects as those of the above-described embodiment are obtained. Although not shown, the first weld rib 7e to the third weld rib 7h and the first continuous groove 7i to the third communication groove 7k are formed in the flap portion 7c of the inner case 7 and the The four welding ribs 7l to the seventh welding rib 7o and the sixth communication groove 7r may be formed, or vice versa.
- FIG. 7B illustrates the joint surface of the inner case 7. That is, the second modified example of the vehicle interior panel 6 is one in which the present invention is applied when the door portion 8a of the outer panel 8 is a single opening. Therefore, the flap part 7c of the inner case 7 is only one piece, and the hinge part 7b is also formed only at one place. Even with such a configuration, the first weld rib 7e to the seventh weld rib 7o and the first series of communication grooves 7i to the sixth communication groove 7r can be formed in the flap portion 7c in the same manner as the above-described embodiment. . In addition, as shown in FIG.
- a plurality of second communication grooves 7j may be formed in one second welding rib 7g.
- a plurality of third communication grooves 7k may be formed.
- the second communication groove 7j is not only formed not to be continuous in the direction in which the first welding rib 7e is formed, but also in the direction in which the second welding rib 7g is formed in at least one lattice 7f or more. It is preferable to arrange them at intervals and not to be continuous.
- the present invention is not limited to the above-described embodiment, and may be applied to an airbag device other than the airbag device for the passenger seat.
- the first modification and the second modification may be combined as appropriate.
- various modifications can be made without departing from the spirit of the present invention.
- Airbag apparatus Instrument panel 2a Opening part 2b Recessed part 3 Airbag 4 Inflator 5 Retainer 5a Hook 6 Vehicle interior panel 7 Inner case 7a Opening part 7b Hinge part 7c Flap part 7d Flange part 7e First welding rib 7f Grid 7g Second welding rib 7h Third welding rib 7i First communication groove 7j Second communication groove 7k Third communication groove 7l Fourth welding rib 7m Fifth welding rib 7n Sixth welding rib 7o Seventh welding rib 7p Fourth communication groove 7q 5th communication groove 7r 6th communication groove 8 Outer panel 8a Door part 8b Fixing part 8c Clip 8d Frame part 8e Notch 71 Side wall 71a Reinforcement rib 72 Locking hole 73 Joining surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
2 インストルメントパネル
2a 開口部
2b 凹部
3 エアバッグ
4 インフレータ
5 リテーナ
5a フック
6 車両用内装パネル
7 インナーケース
7a 開口部
7b ヒンジ部
7c フラップ部
7d フランジ部
7e 第一溶着リブ
7f 格子
7g 第二溶着リブ
7h 第三溶着リブ
7i 第一連通溝
7j 第二連通溝
7k 第三連通溝
7l 第四溶着リブ
7m 第五溶着リブ
7n 第六溶着リブ
7o 第七溶着リブ
7p 第四連通溝
7q 第五連通溝
7r 第六連通溝
8 アウターパネル
8a 扉部
8b 固定部
8c クリップ
8d 枠部
8e 切欠
71 側壁
71a 補強リブ
72 係止孔
73 接合面
Claims (7)
- エアバッグ放出用の開口部を構成するとともに該開口部にヒンジ部を介して形成されたフラップ部を有するインナーケースと、該インナーケースの表面を覆うとともに前記フラップ部と接合される扉部を備えたアウターパネルと、を振動溶着により接合した車両用内装パネルにおいて、
前記フラップ部又は前記扉部の接合面の一方には、前記ヒンジ部と略平行に配置された複数の第一の溶着リブと、該第一の溶着リブと複数の格子を形成するように配置された複数の第二の溶着リブと、前記フラップ部の外縁に沿って枠状に配置された第三の溶着リブと、が形成されており、
前記第一の溶着リブは、隣接する格子間を連通する第一の連通溝を有し、
前記第二の溶着リブは、隣接する格子間を連通する第二の連通溝を有し、
前記第三の溶着リブは、前記ヒンジ部と略垂直な辺に形成された第三の連通溝を有し、
前記第二の連通溝は、前記第二の溶着リブに直交する方向に連続して並ばないように形成され、
前記第一乃至第三の連通溝は、振動溶着時に前記格子内の空気を外部に排出可能な排気経路を構成するように形成されている、
ことを特徴とする車両用内装パネル。 - 前記第二の連通溝は、前記ヒンジ部から少なくとも格子一つ分以上離間した位置に形成されている、ことを特徴とする請求項1に記載の車両用内装パネル。
- 前記第三の連通溝は、前記第三の溶着リブの角部から少なくとも格子一つ分以上離間した位置に形成されている、ことを特徴とする請求項1に記載の車両用内装パネル。
- 前記排気経路の境界部を構成する第二の溶着リブは、前記第二の連通溝を有しない、ことを特徴とする請求項1に記載の車両用内装パネル。
- 前記インナーケースは、前記開口部の外周に形成されたフランジ部を有し、該フランジ部の接合面は、前記第一の溶着リブと略平行に配置された第四の溶着リブと、前記第二の溶着リブと略平行に配置された第五の溶着リブと、前記フランジ部の外縁に沿って枠状に配置された第六の溶着リブと、前記フランジ部の内縁に沿って枠状に配置された第七の溶着リブと、を有し、前記第四乃至第六の溶着リブには、振動溶着時に前記第四乃至第七の溶着リブにより囲まれた格子内の空気を外部に排出可能な第四乃至第六の連通溝がそれぞれ形成されている、ことを特徴とする請求項1に記載の車両用内装パネル。
- 前記フランジ部の前記ヒンジ部の外側に位置する接合面では、前記第四の溶着リブは隣接する格子間を連通する第四の連通溝を有し、前記第五の溶着リブは隣接する格子間を連通する第五の連通溝を有し、前記第五の連通溝は、前記第五の溶着リブに直交する方向に連続して並ばないように形成されている、ことを特徴とする請求項5に記載の車両用内装パネル。
- 緊急時に膨張展開されるエアバッグと、該エアバッグにガスを供給するインフレータと、該インフレータ及び前記エアバッグを保持するリテーナと、該リテーナを係止可能かつ前記エアバッグを車内に放出可能に構成された車両用内装パネルと、を有するエアバッグ装置であって、前記車両用内装パネルは、請求項1乃至請求項6のいずれかに記載の車両用内装パネルである、ことを特徴とするエアバッグ装置。
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US13/582,378 US8657327B2 (en) | 2010-03-04 | 2011-02-28 | Vehicle interior panel, and airbag device |
CN201180012105.3A CN102781732B (zh) | 2010-03-04 | 2011-02-28 | 车辆用内装板及气囊装置 |
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JP2010-048397 | 2010-03-04 | ||
JP2010048397A JP5611619B2 (ja) | 2010-03-04 | 2010-03-04 | 車両用内装パネル及びエアバッグ装置 |
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JP (1) | JP5611619B2 (ja) |
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JP2015116978A (ja) * | 2013-12-19 | 2015-06-25 | タカタ株式会社 | エアバッグ装置 |
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KR101836712B1 (ko) * | 2016-10-06 | 2018-03-08 | 현대자동차주식회사 | 자동차용 에어백 도어의 힌지 장치 |
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HUE056064T2 (hu) * | 2018-01-22 | 2022-01-28 | Motherson Innovations Co Ltd | Légzsákvezetõ berendezés egy gépjármû egy légzsákjának vezetésére, légzsák egység, ami tartalmaz egy ilyen légzsákvezetõ berendezést, valamint belsõ burkoló elem és eljárás egy ilyen belsõ burkoló elem elõállítására, ami tartalmaz egy ilyen légzsákvezet.. |
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US20130001932A1 (en) | 2013-01-03 |
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