WO2021172536A1 - パネル部品の補剛構造 - Google Patents
パネル部品の補剛構造 Download PDFInfo
- Publication number
- WO2021172536A1 WO2021172536A1 PCT/JP2021/007430 JP2021007430W WO2021172536A1 WO 2021172536 A1 WO2021172536 A1 WO 2021172536A1 JP 2021007430 W JP2021007430 W JP 2021007430W WO 2021172536 A1 WO2021172536 A1 WO 2021172536A1
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- WIPO (PCT)
- Prior art keywords
- panel
- wire
- stiffening structure
- main body
- region
- Prior art date
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0455—Reinforcement elements integrated in door structure or other door elements, e.g. beam-like shapes stamped in inner door panel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/06—Fixed roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/007—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of special steel or specially treated steel, e.g. stainless steel or locally surface hardened steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
Definitions
- This disclosure relates to the stiffening structure of panel parts.
- the automobile is equipped with panel parts such as an outer panel.
- Panel parts are required to have tension rigidity.
- stiffening structures for improving the tension rigidity of panel parts used for automobile doors are known (for example, JP-A-2019-156384 (Patent Document 1) and JP-A-2018-016171 (for example, JP-A-2019-156384 (Patent Document 1)). See Patent Document 2)).
- panel parts used for automobile doors may be referred to as door panel parts.
- FIG. 28 is a cross-sectional view showing an example of the conventional stiffening structure 301.
- FIG. 29 is a cross-sectional view showing another example of the conventional stiffening structure 301.
- the stiffening structure 301 before completion is shown in the upper row, and the stiffening structure 301 after completion is shown in the lower row.
- the stiffening structure 301 shown in FIG. 28 includes a door panel component 302 including a panel main body portion 321.
- a reinforcing material 303 is attached to the inner surface 321a of the panel main body 321. That is, the entire area of the reinforcing member 303 overlaps with the panel main body portion 321 and is joined. As a result, the tension rigidity of the panel main body portion 321 is ensured.
- This reinforcing material 303 is made of resin.
- the reinforcing material 303 is attached to the inner surface 321a of the panel main body portion 321 before baking coating (see the upper diagram of FIG. 28).
- the reinforcing material 303 attached to the panel main body 321 is cured by the heat during baking and painting, and is in close contact with the panel main body 321.
- the door panel part 302 including the panel body 321 is made of steel.
- the coefficient of linear expansion differs greatly between the resin reinforcing material 303 and the steel panel main body 321. Therefore, in baking coating, when heat is applied to the door panel component 302 to which the reinforcing material 303 is attached, a difference occurs between the amount of deformation of the reinforcing material 303 and the amount of deformation of the panel main body 321. Therefore, the panel main body portion 321 is elastically deformed, and in some cases, plastically deformed. As a result, unevenness 322 is generated on the panel main body 321 (see the lower part of FIG. 28). Therefore, in the stiffening structure 301 shown in FIG. 28, the surface quality of the door panel component 302 may deteriorate.
- the reinforcing material 303A attached to the inner surface 321a of the panel main body 321 is made of steel. Therefore, the coefficient of linear expansion of the reinforcing member 303A is the same as the coefficient of linear expansion of the panel main body 321. Then, the surface quality of the door panel component 302 does not deteriorate due to the heat during baking.
- the dimensional accuracy of the reinforcing material 303A must be strictly controlled. This is because when the reinforcing material 303A having low dimensional accuracy is attached to the panel main body 321 (see the upper part of FIG. 29), the panel main body 321 is elastically deformed along the shape of the reinforcing material 303A, and in some cases, the reinforcing material 303A is elastically deformed. Is due to plastic deformation (see the lower figure of FIG. 29). Therefore, even with the stiffening structure 301 shown in FIG. 29, the surface quality of the door panel component 302 may deteriorate.
- the surface quality of the panel parts may deteriorate. Further, if the surface quality of the panel parts deteriorates, the tension rigidity of the panel parts may not improve as expected.
- the purpose of the present disclosure is to provide a stiffening structure for panel parts, which can ensure the surface quality of the panel parts and improve the tension rigidity of the panel parts.
- the stiffening structure of the panel component according to the present disclosure includes a panel component and a wire.
- the panel component includes a panel body portion that is curved outward.
- the wire has a first end and a second end. The first end is joined to the inner surface of the first position in the panel body. The second end is joined to the inner surface of the second position of the panel body. The wire is stretched from the first position to the second position.
- the stiffening structure of the other panel parts includes a panel part, an auxiliary part, and a wire.
- Panel components include a flat or outwardly curved panel body.
- Auxiliary parts are located inside the panel parts and are integrated with the panel parts.
- the wire has a first end and a second end. The first end is joined to the inner surface of the first position in the panel body. The second end is joined to the auxiliary part. The wire is stretched from the first position to the auxiliary part.
- the stiffening structure of the other panel parts according to the present disclosure includes a panel part, a receiving portion, and a wire.
- Panel components include a flat or outwardly curved panel body.
- the receiving portion protrudes from the inner surface of the panel main body portion.
- the wire has a first end and a second end. The first end is joined to the inner surface of the first position in the panel body.
- the second end portion is joined to the inner surface of the second position on the side opposite to the first position with respect to the receiving portion of the panel main body portion.
- the wire is stretched from the first position to the second position via the receiving portion.
- the surface quality of the panel parts can be ensured, and the tension rigidity of the panel parts can be improved.
- FIG. 1 is a cross-sectional view showing a stiffening structure of the first embodiment.
- FIG. 2 is a plan view of the stiffening structure of the first embodiment.
- FIG. 3 is a schematic view showing a state when a wire is joined to the panel main body portion in the stiffening structure of the first embodiment.
- FIG. 4A is a perspective view of the panel component when a load is applied to the panel component without wires.
- FIG. 4B is a perspective view of the panel component when a load is applied to the panel component without wires.
- FIG. 4C is a schematic view showing the deformation behavior of the panel main body when a load is applied to the panel parts in the absence of wires.
- FIG. 1 is a cross-sectional view showing a stiffening structure of the first embodiment.
- FIG. 2 is a plan view of the stiffening structure of the first embodiment.
- FIG. 3 is a schematic view showing a state when a wire is joined to the panel main body portion in the stiffening
- FIG. 5 is a schematic view showing a state when a load is applied to the panel parts from the outside in the stiffening structure of the first embodiment.
- FIG. 6 is a plan view of the stiffening structure of the second embodiment.
- FIG. 7 is a plan view of the stiffening structure of the third embodiment.
- FIG. 8 is a diagram showing the results of the first weighting test regarding the stiffening structure of the second and third embodiments.
- FIG. 9 is a diagram showing the results of a second weighting test regarding the stiffening structure of the second and third embodiments.
- FIG. 10 is a cross-sectional view showing the stiffening structure of the fourth embodiment.
- FIG. 11 is a cross-sectional view showing the stiffening structure of the fifth embodiment.
- FIG. 12 is a plan view showing the stiffening structure of the sixth embodiment.
- FIG. 13 is a cross-sectional view showing a part of the stiffening structure of the sixth embodiment.
- FIG. 14 is a plan view showing the stiffening structure of the seventh embodiment.
- FIG. 15 is a plan view showing the stiffening structure of the eighth embodiment.
- FIG. 16 is a cross-sectional view showing the stiffening structure of the ninth embodiment.
- FIG. 17 is a plan view showing the stiffening structure of the ninth embodiment.
- FIG. 18 is a cross-sectional view showing the stiffening structure of the tenth embodiment.
- FIG. 19 is a plan view showing the stiffening structure of the eleventh embodiment.
- FIG. 20 is a diagram showing the results of a third weighted test relating to the stiffening structure of the eleventh embodiment.
- FIG. 21 is a cross-sectional view showing the stiffening structure of the twelfth embodiment.
- FIG. 22 is a cross-sectional view showing the stiffening structure of the thirteenth embodiment.
- FIG. 23 is a cross-sectional view showing the stiffening structure of the 14th embodiment.
- FIG. 24 is a cross-sectional view showing the stiffening structure of the fifteenth embodiment.
- FIG. 25 is a cross-sectional view showing the stiffening structure of the 16th embodiment.
- FIG. 26 is a cross-sectional view showing the stiffening structure of the 17th embodiment.
- FIG. 21 is a cross-sectional view showing the stiffening structure of the twelfth embodiment.
- FIG. 22 is a cross-sectional view showing the stiffening structure of the thirteenth embodiment.
- FIG. 23 is a cross-sectional view showing the stiff
- FIG. 27 is a diagram showing the results of a fourth weighted test relating to the stiffening structure of the 17th embodiment.
- FIG. 28 is a cross-sectional view showing an example of a conventional stiffening structure.
- FIG. 29 is a cross-sectional view showing another example of the conventional stiffening structure.
- Tension rigidity is evaluated by the amount of elastic deformation that occurs in a panel component when a load is applied to the panel component from the outside. Specifically, when a load is applied from the outside to the inside of the panel main body of the panel component, the portion to which the load is applied is elastically displaced in the direction of the load. The smaller the amount of elastic displacement, the higher the tension rigidity.
- a method of improving the tension rigidity of the panel parts a method of increasing the plate thickness of the panel parts and a method of attaching a reinforcing material to the panel main body can be considered.
- the tension rigidity of panel parts increases or decreases in proportion to the cube of the plate thickness. Therefore, if the plate thickness of the panel parts is reduced for the purpose of weight reduction, the tension rigidity is greatly reduced. Moreover, even if the panel parts are made stronger by selecting the material, the effect of improving the tension rigidity is low. This is because the tension rigidity is evaluated by the amount of elastic deformation.
- a reinforcing material is attached to the inner surface of the panel main body, and the entire area of the reinforcing material is joined so as to overlap with the panel main body.
- the joint area between the panel body and the reinforcing material is large. If the joint area is large, the shape of the panel body is strongly influenced by the properties of the reinforcing material (linear expansion coefficient, shape dimension). Therefore, the panel main body is likely to be plastically deformed depending on the properties of the reinforcing material.
- the cause of the deterioration of the surface quality of the panel parts is that the joint area between the panel main body and the reinforcing material is large. Then, it can be said that the surface quality of the panel parts can be ensured if the joint area between the panel main body and the reinforcing material is small. In order to reduce the joint area between the panel main body and the reinforcing material, only the end portion of the reinforcing material needs to be joined to the panel main body.
- the stiffening structure of the panel component includes a panel component and a wire.
- the panel component includes a panel body portion that is curved outward.
- the wire has a first end and a second end. The first end is joined to the inner surface of the first position in the panel body. The second end is joined to the inner surface of the second position of the panel body. The wire is stretched from the first position to the second position (first configuration).
- the panel component is not particularly limited as long as it is a component having a panel body portion curved outward.
- the panel component is an automobile skin panel.
- the outer panel is, for example, a door outer panel, a hood (bonnet), a roof and a fender.
- the material of the wire is not limited.
- the wire is a metal wire.
- the material of the metal wire is not particularly limited.
- the metal wire is a steel wire.
- the metal wire may be a single wire or a stranded wire.
- the wire may be a CFRP (Carbon Fiber Reinforced Plastics) wire.
- the CFRP wire may be a CFRP strand or a CFRP gut.
- the CFRP may be a thermosetting CFRP using a thermosetting resin (eg, epoxy) as a base material, or may be a thermoplastic CFRP using a thermoplastic resin (eg, polyamide) as a base material. It is more preferable that the CFRP wire uses continuous carbon fiber.
- the diameter of the wire can be freely selected according to the design requirements. If the cross section of the wire is not a circle, the diameter of the wire shall be the diameter of a circle with the same cross-sectional area (equivalent diameter).
- the diameter of the wire is preferably 0.3 mm to 3.0 mm from the viewpoint of suppressing an increase in weight while sufficiently ensuring the rigidity of the wire. More preferably, the diameter of the wire is 1.1 mm to 2.5 mm.
- the first end portion of the wire is joined to the first position of the panel main body portion, and the second end portion of the wire is joined to the second position of the panel main body portion. That is, the wire is joined to the panel main body at the first end and the second end. On top of that, the wires are stretched from the first position to the second position. In this case, the wire extends in a straight line between the first position and the second position. Further, the wire extending between the first position and the second position is separated from the inner surface of the panel main body portion.
- a load is applied from the outside to the panel body of the panel parts mounted on the automobile.
- a portion where a load is expected to be applied from the outside may be referred to as a “load assumption point”.
- the panel body will bend. Specifically, in the panel main body, the assumed load point is displaced in the direction of the load. That is, the assumed load point is deformed to the inside of the panel main body. With the deformation of the assumed load point, a part of the area away from the assumed load point is deformed to the outside of the panel main body.
- this region may be referred to as an "outward deformation region".
- the outward deformation region is displaced in the direction opposite to the direction of the load and away from the assumed load point. When the panel parts are viewed in cross section, the outward deformation regions exist on both sides of the assumed load point.
- the wire is stretched from the first position to the second position.
- the first position and the second position are set in outward deformation regions that are separated from each other.
- tension is generated in the wire.
- the first position and the second position of the panel main body receive the reaction force of tension from the wire.
- deformation of the first position and the second position of the panel main body is suppressed.
- the deformation of the assumed load point is suppressed. Therefore, the tension rigidity of the panel parts is increased.
- the wire functions as a kind of reinforcing material.
- the wire functioning as a reinforcing material is only joined to the panel main body portion at the first end portion and the second end portion. In this case, the joint area between the panel body and the wire is small.
- the dimensional accuracy of the wire does not need to be strictly controlled.
- the influence of the shape on the shape of the panel body is small.
- the coefficient of linear expansion of the wires becomes the shape of the panel body regardless of whether the material of the wires is the same as or different from the materials of the panel parts. The impact is small. Therefore, the surface quality of the panel parts can be ensured.
- the stiffening structure of the first configuration preferably has the following configuration.
- the panel main body includes a load assumption point where a load is assumed to be applied from the outside, and a first region and a second region.
- the first region and the second region are displaced in the direction opposite to the direction of the load and in the direction away from the assumed load point.
- the second region is located on the opposite side of the assumed load point from the first region.
- the first position is set in the first area and the second position is set in the second area (second configuration).
- the first region and the second region correspond to the above-mentioned outward deformation region.
- the surface quality of the panel parts can be more sufficiently ensured, and the tension rigidity of the panel parts can be more sufficiently improved.
- the stiffening structure of the other panel parts includes a panel part, an auxiliary part, and a wire.
- Panel components include a flat or outwardly curved panel body.
- Auxiliary parts are located inside the panel parts and are integrated with the panel parts.
- the wire has a first end and a second end. The first end is joined to the inner surface of the first position in the panel body. The second end is joined to the auxiliary part. The wire is stretched from the first position to the auxiliary part (third configuration).
- the same panel parts as those of the stiffening structure of the first configuration described above are applied to the panel parts of the stiffening structure of the third configuration.
- the panel main body to which the wires are joined is convexly curved outward or flat.
- the auxiliary parts are not particularly limited as long as they are placed inside the panel parts and integrated with the panel parts.
- the panel component is a door outer panel
- the auxiliary component is a door inner panel, a door impact beam, or the like.
- a wire similar to the stiffening structure of the first configuration described above is applied to the wire having the stiffening structure of the third configuration.
- the first end portion of the wire is joined to the first position of the panel main body portion, and the second end portion of the wire is joined to the auxiliary part. That is, the wire is joined to the panel body at the first end and to the auxiliary component at the second end. On top of that, the wire is stretched from the first position to the auxiliary part. In this case, the wire extends in a straight line between the first position and the auxiliary component, similar to the stiffening structure of the first configuration. Further, the wire extending between the first position and the auxiliary component is separated from the inner surface of the panel main body portion.
- the wire is stretched from the first position to the auxiliary part.
- the first position is set in the outward deformation region.
- the first position of the panel main body receives the reaction force of tension from the wire.
- deformation of the first position of the panel main body is suppressed.
- the deformation of the assumed load point is also suppressed. Therefore, the tension rigidity of the panel parts is increased.
- the wire functions as a kind of reinforcing material.
- the wire functioning as a reinforcing material is only joined to the panel main body at the first end and to the auxiliary part at the second end.
- the joint area between the panel main body and the wire is small, as in the stiffening structure of the first configuration described above. Therefore, the surface quality of the panel parts can be ensured.
- the stiffening structure of the third configuration preferably has the following configuration.
- the panel main body includes a load assumption point where a load is assumed to be applied from the outside and a first region.
- the first region is displaced in the direction opposite to the direction of the load and in the direction away from the assumed load point.
- the first position is set in the first region (fourth configuration).
- the first region corresponds to the above-mentioned outward deformation region.
- the surface quality of the panel parts can be more sufficiently ensured, and the tension rigidity of the panel parts can be more sufficiently improved.
- the stiffening structure of the other panel parts includes a panel part, a receiving portion, and a wire.
- Panel components include a flat or outwardly curved panel body.
- the receiving portion protrudes from the inner surface of the panel main body portion.
- the wire has a first end and a second end. The first end is joined to the inner surface of the first position in the panel body.
- the second end portion is joined to the inner surface of the second position on the side opposite to the first position with respect to the receiving portion of the panel main body portion.
- the wire is stretched from the first position to the second position via the receiving portion (fifth configuration).
- a panel component similar to the stiffening structure of the first configuration described above is applied to the panel component of the stiffening structure of the fifth configuration.
- the panel main body to which the wires are joined is convexly curved or flat to the outside, as in the third configuration described above.
- the receiving portion is not particularly limited as long as it protrudes from the inner surface of the panel main body portion.
- the receiving portion is formed separately from the panel component and joined to the panel main body portion.
- the receiving portion may be integrally molded with the panel component by press working.
- the material of the receiving portion is not particularly limited. When the receiving portion is molded separately from the panel parts, for example, the material of the receiving portion is plastic.
- the material of the receiving portion may be metal. This metal is, for example, steel.
- the method of joining the receiving portion to the panel main body portion is, for example, adhesion with an adhesive. The joining method may be welding or mechanical fastening. Further, for example, when the panel component is a door outer panel and the receiving portion is integrally molded with the panel component, the character line formed on the panel main body portion can be used as the receiving portion.
- a wire similar to the stiffening structure of the first configuration described above is applied to the wire having the stiffening structure of the fifth configuration.
- the second position is on the opposite side of the receiving portion from the first position. That is, there is a receiving portion between the first position and the second position.
- the first end of the wire is joined to the first position of the panel body and the second end of the wire is joined to the second position of the panel body. That is, the wire is joined to the panel main body at the first end and the second end. Then, the wire is stretched from the first position to the second position via the receiving portion.
- the wire is stretched from the first position to the second position via the receiving portion.
- the first position and the second position are set in outward deformation regions that are separated from each other. Also in this case, similar to the stiffening structure of the first configuration described above, tension is generated in the wire when a load is applied to the panel main body portion. Therefore, the tension rigidity of the panel parts is increased.
- the joint area between the panel main body and the wire is small as in the stiffening structure of the first configuration described above. Therefore, the surface quality of the panel parts can be ensured.
- the stiffening structure of the fifth configuration preferably has the following configuration.
- the panel main body includes a load assumption point where a load is assumed to be applied from the outside, and a first region and a second region.
- the first region and the second region are displaced in the direction opposite to the direction of the load and in the direction away from the assumed load point.
- the second region is located on the opposite side of the assumed load point from the first region.
- the first position is set in the first area and the second position is set in the second area.
- a receiving portion is provided between the first region and the second region (sixth configuration).
- the first region and the second region correspond to the above-mentioned outward deformation region.
- the surface quality of the panel parts can be more sufficiently ensured, and the tension rigidity of the panel parts can be more sufficiently improved.
- the panel parts are preferably made of metal (seventh configuration).
- the panel parts are preferably made of steel (eighth configuration).
- the metal in this case is not limited to steel.
- the metal may be aluminum or magnesium.
- the wire is preferably a metal wire (nineth configuration).
- the wire is preferably a steel wire (tenth configuration).
- the material of the panel component is preferably the same as the material of the wire (11th configuration).
- the coefficient of linear expansion of the wire is the same as the coefficient of linear expansion of the panel main body. Therefore, the coefficient of linear expansion of the wire has no effect on the shape of the panel body. Therefore, the surface quality of the panel parts can be more sufficiently ensured.
- the wire may be a CFRP wire (12th configuration). Further, it is preferable that the Young's modulus of the wire is high. This is because the effect of improving the tension rigidity is enhanced.
- the panel component is preferably an outer panel for automobiles (thirteenth configuration).
- the panel parts that are the outer panel are, for example, a door outer panel, a hood, a roof, and a fender.
- a method of joining the first end of the wire to the panel body, a method of joining the second end of the wire to the panel body, and a method of joining the second end of the wire to the auxiliary component is preferably an adhesive. This is because the appearance of the panel body from the outside does not change.
- the joining method may be welding or mechanical fastening.
- the panel body and the wire may be joined before the heat treatment or after the heat treatment.
- the wire is a CFRP wire
- the connection between the panel body and the wire may be performed after the heat treatment in consideration of the heat resistance of the wire or the difference in thermal expansion between the wire and the panel body. preferable.
- the stiffening structure 1 of the panel component 2 of the first embodiment will be described with reference to FIGS. 1 to 5.
- the panel component 2 to be stiffened is an outer panel for an automobile.
- the outer panel include a door outer panel, a hood, a roof and a fender.
- the stiffening structure 1 of the panel component 2 indicates a direction
- the X direction, the Y direction, and the Z direction that are orthogonal to each other may be used.
- the X direction and the Y direction are the directions in which the panel component 2 spreads when the panel component 2 is viewed in a plane.
- the Z direction is a direction perpendicular to the spreading direction of the panel component 2, and the outer O and the inner I of the panel component 2 are indicated by the Z direction.
- FIG. 1 and 2 are views showing a stiffening structure 1 of the panel component 2 of the first embodiment.
- FIG. 1 shows a cross-sectional view of the stiffening structure 1 when the panel component 2 is cut along a plane perpendicular to the X direction.
- FIG. 2 shows a plan view of the stiffening structure 1 when the panel component 2 shown in FIG. 1 is viewed from the inside I.
- the stiffening structure 1 includes a panel component 2 and a wire 3.
- the number of wires 3 is three.
- the number of wires 3 is not limited to three, and may be one, two, or three or more.
- the panel component 2 of the present embodiment has a rectangular shape in a plan view when viewed along the Z direction.
- the panel component 2 includes a panel main body 21.
- the panel component 2 includes a first side edge portion 22A connected to one end of the panel main body portion 21 in the Y direction.
- the panel component 2 includes a second side edge 22B connected to the other end of the panel body 21 in the Y direction.
- Panel part 2 is composed of a metal plate material. Specifically, the panel component 2 is made of a steel plate material.
- the panel main body portion 21 is formed in a curved surface shape in which the central portion in the Y direction protrudes toward the outside O. That is, the panel main body 21 is convexly curved to the outside O.
- the cross-sectional shape of the panel body 21 is arcuate. However, the cross-sectional shape of the panel main body 21 may be an elliptical arc shape or another convex curve shape as long as it is a shape that is convex toward the outside O. Note that FIG. 1 exaggerates the cross-sectional shape of the panel body 21. This also applies to each of the following figures.
- the wire 3 is composed of a metal wire (metal wire). Specifically, the wire 3 is composed of a steel wire (steel wire). The metal wire 3 is a single wire made of one wire rod. However, the metal wire 3 may be a stranded wire obtained by twisting a plurality of wires. The wire 3 is an elongated linear member. For example, the diameter of the wire 3 is 2.0 mm. The diameter of the wire may be 0.3 to 3.0 mm.
- the wire 3 is arranged along the Y direction of the panel main body 21. Specifically, the wire 3 extends in the Y direction from the side of the first side edge portion 22A to the side of the second side edge portion 22B within the range of the arc drawn by the cross section of the panel main body portion 21.
- the three wires 3 are arranged side by side in the X direction at equal intervals from each other (see FIG. 2).
- the wire 3 has a first end portion 31 and a second end portion 32.
- one end of two ends located on opposite sides to each other is the first end 31, and the other end is the second end 32.
- the first end portion 31 of the wire 3 is joined to the first position 211 of the inner surface 21a of the panel main body portion 21 by the adhesive 4.
- the second end portion 32 is joined to the second position 212 of the inner surface 21a of the panel main body portion 21 by the adhesive 4.
- the first position 211 is separated from the second position 212 in the Y direction of the panel main body 21.
- FIG. 3 is a schematic view showing a state when the wire 3 is joined to the panel main body 21 in the stiffening structure of the first embodiment.
- the upper part shows the state before joining
- the lower part shows the state after joining. Note that FIG. 3 typically shows the second end 32 of the wire 3.
- the wire 3 when the wire 3 is joined to the panel main body portion 21, the wire 3 can bend the root portion 33 of each of the first end portion 31 and the second end portion 32.
- the root portion 33 is brought into contact with the inner surface 21a of the panel main body portion 21.
- the wire 3 is rotated about the axis of the wire main body 34 as shown by an arrow in the lower figure of FIG. Then, the first end portion 31 and the second end portion 32 of the wire 3 come into close contact with the inner surface 21a of the panel main body portion 21.
- the adhesive 4 is supplied to each of the first end 31 and the second end 32 of the wire 3.
- the first end 31 and the second end 32 of the wire 3 are fixed by the cured adhesive 4, respectively.
- the first end portion 31 and the second end portion 32 of the wire 3 are joined to the panel main body portion 21.
- the method of joining the wire 3 to the panel main body 21 is not limited to the joining method shown in FIG.
- the first end portion 31 and the second end portion 32 may be formed in a spiral shape in advance. If bonding with an adhesive is adopted as the bonding method, bonding marks that impair the appearance do not appear on the outer surface 21b of the panel main body 21. From the viewpoint of appearance, the joining method is preferably adhesive. However, when the outer surface 21b of the panel main body 21 is finally covered with other parts, the appearance is irrelevant, so the joining method may be welding or mechanical fastening.
- the panel body 21 and the wire 3 may be joined before the heat treatment or after the heat treatment. May be good.
- the first end 31 of the wire 3 is joined to the first position 211 of the panel body 21, and the second end 32 of the wire 3 is joined to the second position 212 of the panel body 21. ing. That is, the wire 3 is joined to the panel main body 21 at the first end 31 and the second end 32. On top of that, the wire 3 is stretched from the first position 211 to the second position 212.
- the wire body 34 of the wire 3 extends on the virtual straight line L passing through the first position 211 and the second position 212. That is, the wire 3 extends in a straight line between the first position 211 and the second position 212. Further, the wire body 34 extending between the first position 211 and the second position 212 is separated from the inner surface 21a of the panel body 21. A space S is formed between the wire main body 34 and the panel main body 21.
- FIGS. 4A to 4C are schematic views showing the deformation behavior of the panel main body 21 when a load F is applied to the panel component 2 from the outside O in the absence of the wire 3.
- 4A and 4B show perspective views of the panel component 2.
- FIG. 4C shows a cross section of the panel component 2 when it is cut along a plane perpendicular to the X direction. These figures show the results (simulation model and numerical values) of CAE (Computer Aided Engineering) analysis.
- CAE Computer Aided Engineering
- the central portion C of the panel main body portion 21 in the X direction and the Y direction protrudes most to the outside O.
- a load F is applied to the central portion C of the panel main body portion 21 from the outer surface 21b side to the inner surface 21a side of the panel main body portion 21. That is, the central portion C of the panel main body portion 21 is the above-mentioned load assumption point. If a load F is applied from the outside O to the central portion C (assumed load point) of the panel main body portion 21, the panel main body portion 21 is bent. In this CAE analysis, the load F was set to two types, 10N and 25N.
- FIGS. 4A and 4B show regions A1 and A2 of the panel main body 21 that deform to the outer side O when a load F is applied to the central portion C (assumed load point).
- the regions A1 and A2 are displaced in the direction along the Z direction. From another point of view, the regions A1 and A2 are displaced in the direction opposite to the direction of the load F. Further, the regions A1 and A2 are displaced in the direction along the Y direction. In another aspect, the regions A1 and A2 are displaced away from the central portion C.
- the displacement amount in each part of the panel main body 21 is shown by 100 times the numerical value of the analysis result.
- the solid line shows the state before the load F is applied.
- the alternate long and short dash line shows the state when a load F of 10 N is applied.
- the alternate long and short dash line shows the state when a load F of 25 N is applied.
- the regions A1 and A2 of the panel main body portion 21 which are separated from each other in the Y direction from the central portion C are deformed to the outer side O of the panel main body portion 21. That is, the regions A1 and A2 are displaced in the direction opposite to the direction of the load F and in the direction away from the central portion C. Therefore, the regions A1 and A2 are the above-mentioned outward deformation regions.
- the region A1 is close to the first side edge portion 22A of the panel component 2.
- the region A2 is close to the second side edge portion 22B of the panel component 2.
- the region A2 is located on the side opposite to the region A1 with respect to the central portion C (assumed load point).
- the range of the regions A1 and A2 when the load F is 25N is wider than that when the load F is 10N.
- Regions A1 and A2 obtained by CAE analysis indicate outward deformation regions.
- the outward deformation region is in the direction opposite to the direction of the load F and the central portion C. Displace in the direction away from.
- the region A1 which is the outward deformation region on the side close to the first side edge portion 22A of the panel main body portion 21 may be referred to as the first region A1.
- the region A2 which is the outward deformation region on the side close to the second side edge portion 22B of the panel component 2 may be referred to as the second region A2.
- the lateral (Y direction) displacement amount of the first region A1 and the second region A2 when the load F is 25N is larger than that when the load F is 10N.
- the first region A1 close to the first side edge portion 22A of the panel component 2 is displaced in the first deformation direction D1 toward the first side edge portion 22A.
- the second region A2 close to the second side edge portion 22B of the panel component 2 is displaced in the second deformation direction D2 toward the second side edge portion 22B. That is, the first region A1 and the second region A2 are displaced in the direction away from the central portion C (assumed load point) of the panel main body portion 21 in the Y direction.
- the first end 31 of the wire 3 is joined to the first position 211 of the panel body 21, and the second end 32 of the wire 3 is joined to the second position 212 of the panel body 21.
- the first position 211 is set in the first region A1
- the second position 212 is set in the second region A2.
- both the first position 211 to which the first end 31 of the wire 3 is joined and the second position 212 to which the second end 32 of the wire 3 is joined are set in the outward deformation region. There is.
- the wire 3 extends in a straight line in the Y direction between the first position 211 (first region A1) and the second position 212 (second region A2).
- the first region A1 and the second region A2, which are outward deformation regions, are derived by CAE analysis.
- the method for deriving the outward deformation region is not limited to such CAE analysis.
- an experiment in which a load F is applied using the panel component 2 without the wire 3 may be performed, and an outward deformation region may be derived from the experimental result.
- the first end 31 of the wire 3 is joined to the first position 211, and the second end 32 of the wire 3 is joined to the second position 212.
- the first position 211 and the second position 212 are set in outward deformation regions (first region A1 and second region A2) that are separated from each other, respectively.
- the wire 3 is stretched from the first position 211 to the second position 212.
- the wire 3 extends along the Y direction between the first position 211 and the second position 212 on the virtual straight line L.
- FIG. 5 is a schematic view showing a state when a load F is applied to the panel component 2 from the outside O in the stiffening structure 1 of the present embodiment.
- the cross section of the panel component 2 is shown on the left side of FIG. On the right side of FIG. 5, the portion to which the load F is applied and the portion in the vicinity thereof are enlarged and shown.
- the panel main body 21 when a load F is applied to the panel main body 21, the panel main body 21 is bent. In this case, the first region A1 and the second region A2 of the panel main body 21 are deformed to the outside, and the tension T is generated in the wire 3 with the deformation.
- the first position 211 and the second position 212 of the panel main body 21 receive the reaction force of the tension T from the wire 3. As a result, deformation of the first position 211 and the second position 212 of the panel main body 21 is suppressed. In the panel main body 21, the deformation of the first position 211 and the second position 212 is suppressed, so that the deformation of the first region A1 and the second region A2 is suppressed.
- the deformation of the outward deformation region is suppressed.
- the deformation of the assumed load point to which the load F is applied is suppressed. Therefore, the tension rigidity of the panel component 2 is increased.
- the wire 3 functions as a kind of reinforcing material.
- the wire main body 34 extending between the first position 211 and the second position 212 is separated from the inner surface 21a of the panel main body portion 21.
- the wire 3 that functions as a reinforcing material is only joined to the panel main body portion 21 at the first end portion 31 and the second end portion 32. In this case, the joint area between the panel body 21 and the wire 3 is small.
- the dimensional accuracy of the wire 3 does not need to be strictly controlled.
- the influence of the shape of the wire 3 on the panel main body 21 is small. Further, even when the panel component 2 and the wire 3 are heat-treated (eg, baking finish), regardless of whether the material of the wire 3 is the same as or different from the material of the panel component 2.
- the influence of the coefficient of linear expansion of the wire 3 on the shape of the panel main body 21 is small. Therefore, the surface quality of the panel component 2 can be ensured.
- the panel component 2 is made of metal (more specifically, steel), and the wire 3 is also made of metal (more specifically, steel). That is, the material of the panel component 2 is the same as that of the wire 3 joined to the panel main body 21 of the panel component 2.
- the coefficient of linear expansion of the wire 3 is the same as the coefficient of linear expansion of the panel body 21. Therefore, the coefficient of linear expansion of the wire 3 has no effect on the shape of the panel body 21. Therefore, the surface quality of the panel component 2 can be more sufficiently ensured.
- the surface quality of the panel component 2 can be ensured, and the tension rigidity of the panel component 2 can be improved.
- the panel main body 21 is convexly curved to the outside O. That is, the panel main body 21 is not concavely curved to the outside O.
- the radius of curvature R of the convexly curved portion in the cross section of the panel main body 21 is preferably 100 mm or more.
- Japanese Patent Application Laid-Open No. 2008-68757 discloses a method for improving tension rigidity by providing a tension applying jig inside the door outer panel.
- a tension applying jig having a higher coefficient of linear expansion than that of the door outer panel is fitted into the door outer panel, and the panel is plastically deformed by thermal strain in the painting process. This improves the rigidity of the door outer panel after the tension applying jig is removed.
- the mounting structure of the tension applying jig is a fitting type. Therefore, if a load is applied to the door outer panel while the tension applying jig is still attached to the door outer panel, a gap is created in the fitting portion and the tension applying jig is disengaged.
- FIG. 6 is a diagram showing a stiffening structure 1A of the panel component 2 of the second embodiment.
- FIG. 6 shows a plan view of the stiffening structure 1A when the panel component 2 is viewed from the inside I.
- the stiffening structure 1A of the second embodiment is a modification of the stiffening structure 1 of the first embodiment.
- the points different from those of the first embodiment will be mainly described.
- the panel component 2 has a rectangular shape in a plan view when viewed along the Z direction.
- Beads 26 are formed on the four side edges of the panel component 2 along each side forming the contour of the panel component 2.
- the bead 26 is formed on the outside of the panel main body 21.
- the panel main body 21 is provided with the wire 3 as in the first embodiment.
- the number of wires 3 is five.
- the five wires 3 are arranged side by side in the X direction at equal intervals from each other.
- the panel component 2 is stiffened by five wires 3. In this case, as compared with the stiffening structure of the first embodiment, the tension rigidity of the panel component 2 increases as the number of wires 3 increases.
- FIG. 7 is a diagram showing a stiffening structure 1B of the panel component 2 of the third embodiment.
- FIG. 7 shows a plan view of the stiffening structure 1B when the panel component 2 is viewed from the inside I.
- the stiffening structure 1B of the third embodiment is a modification of the stiffening structure 1A of the second embodiment.
- the points different from the second embodiment will be mainly described.
- the number of wires 3 provided in the panel main body 21 is 15.
- the panel component 2 is stiffened by 15 wires 3.
- the tension rigidity of the panel component 2 increases as the number of wires 3 increases.
- the stiffening structure 1B of the present embodiment includes, as the wire 3, a first wire 3A, a second wire 3B, and a third wire 3C having different lengths from each other.
- the length of the first wire 3A is the shortest.
- the length of the second wire 3B is longer than that of the first wire 3A.
- the length of the third wire 3C is the longest.
- the first wire 3A, the second wire 3B, and the third wire 3C are arranged side by side alternately in the X direction.
- FIG. 8 is a diagram showing the results of the first weighting test regarding the stiffening structure of the second and third embodiments.
- FIG. 8 shows the relationship between the load applied to the panel component and the amount of deflection of the panel component.
- the amount of deflection means the amount of displacement of the portion of the panel body to which a load is applied (assumed load point).
- the panel part 2 having the stiffening structure 1A of the second embodiment and the panel part 2 having the stiffening structure 1B of the third embodiment were prepared.
- the number of wires 3 was five.
- the number of wires 3 was 15.
- a panel component 2 having a non-rigid structure 1C without wires was prepared. A load was applied to each panel component 2 and the amount of deflection was investigated.
- the main conditions for the stiffening structures 1A and 1B and the non-stiffening structure 1C are shown below.
- the material of the panel part 2 was JSC270D (Japan Iron and Steel Federation standard (JFS)), which is a cold-rolled steel sheet for automobiles.
- the plate thickness of the panel component 2 was 0.4 mm.
- the panel component 2 has a square shape in a plan view when viewed from the Z direction, and the length of each side constituting the contour is 400 mm.
- the radius of curvature R of the convexly curved portion is set to 1200 mm.
- the adhesive 4 for joining the wire 3 and the panel component 2 a low-odor acrylic adhesive Y-600 manufactured by Cemedine Co., Ltd. was used.
- the test result of the non-rigid structure 1C using the first panel component 2 is shown by 1CA
- the test result of the non-rigid structure 1C using the second panel component 2 is shown. , 1CB.
- the amount of deflection of the panel component 2 in the rigid structure 1A of the second embodiment was smaller than the amount of deflection of the panel component 2 in the non-rigid structure 1C (1CA, 1CB). .. Further, the amount of bending of the panel component 2 in the stiffening structure 1B of the third embodiment was smaller than the amount of bending of the panel component 2 in the stiffening structure 1A of the second embodiment.
- FIG. 9 is a diagram showing the results of a second weighting test regarding the stiffening structure of the second and third embodiments.
- FIG. 9 shows the relationship between the weight per unit area of the panel component and the amount of deflection of the panel component. Similar to the first weighting test, the amount of deflection means the amount of displacement of the portion of the panel body to which a load is applied (assumed load point).
- the panel part 2 having the stiffening structure 1A of the second embodiment and the panel part 2 having the stiffening structure 1B of the third embodiment were prepared.
- the number of wires 3 was five.
- the number of wires 3 was 15.
- a panel component 2 having a non-rigid structure 1C without wires was prepared. A load of 90 N was applied to each panel component 2, and the amount of deflection was investigated.
- the conditions of the second load test which is different from the first load test, are as follows.
- a non-rigid structure 1C tests were conducted on four panel parts 2 having different plate thicknesses t.
- the plate thickness t of these four panel parts 2 was 0.4 mm, 0.5 mm, 0.6 mm, and 0.7 mm, respectively.
- the plate thickness t of the panel component 2 was set to 0.4 mm as in the first weighting test.
- the stiffening structure 1A of the second embodiment has a smaller weight per unit area than the non-rigid structure 1C composed of only the panel component 2 having a plate thickness t of 0.5 mm. , The amount of deflection was a little small. Further, the stiffening structure 1B of the third embodiment has a smaller weight per unit area and a larger amount of bending as compared with the non-rigid structure 1C composed of only the panel component 2 having a plate thickness t of 0.5 mm. It was small.
- the stiffening structure 1B of the third embodiment has a significantly smaller weight per unit area and a bending amount as compared with the non-rigid structure 1C composed of only the panel component 2 having a plate thickness t of 0.7 mm. Was a little small. Further, the stiffening structure 1B of the third embodiment has a slightly larger weight per unit area as the number of wires 3 increases, as compared with the stiffening structure 1A of the second embodiment.
- FIG. 10 is a diagram showing a stiffening structure 1 of the panel component 2 of the fourth embodiment.
- FIG. 10 shows a cross-sectional view of the stiffening structure 1 when the panel component 2 is cut along a plane perpendicular to the X direction.
- the stiffening structure 1 of the fourth embodiment is a modification of the stiffening structure 1 of the first embodiment.
- the points different from those of the first embodiment will be mainly described.
- the stiffening structure 1 of the present embodiment includes, as the wire 3, a first wire 3A and a second wire 3B having different lengths from each other.
- the length of the first wire 3A is shorter than that of the second wire 3B.
- the panel main body 21 of the panel component 2 is curved outward O.
- the first wire 3A is arranged at a position closer to the outer side O of the panel component 2
- the second wire 3B is arranged at a position closer to the inner side I of the panel component 2. That is, the first wire 3A and the second wire 3B are arranged so as to be arranged in the Z direction. From another point of view, the first wire 3A and the second wire 3B are arranged at the same position in the X direction.
- the stiffening structure 1 of the present embodiment also has the same effect as that of the first embodiment. Further, according to the stiffening structure 1 of the present embodiment, the tension rigidity can be further improved as compared with the first embodiment.
- FIG. 11 is a diagram showing a stiffening structure 1 of the panel component 2 of the fifth embodiment.
- FIG. 11 shows a cross-sectional view of the stiffening structure 1 when the panel component 2 is cut along a plane perpendicular to the X direction.
- the stiffening structure 1 of the fifth embodiment is a modification of the stiffening structure 1 of the first embodiment.
- the points different from those of the first embodiment will be mainly described.
- the length of the first wire 3A is the same as the length of the second wire 3B. However, the length of the first wire 3A may be different from the length of the second wire 3B.
- the load F is applied to the panel main body 21 at three places spaced apart from each other in the Y direction. That is, the panel main body 21 has three assumed load points, that is, a first assumed load point P1, a second assumed load point P2, and a third assumed load point P3.
- the first assumed load point P1, the second assumed load point P2, and the third assumed load point P3 are arranged in this order from the first side edge portion 22A to the second side edge portion 22B of the panel main body portion 21.
- the stiffening structure 1 of the present embodiment includes the first wire 3A, the second wire 3B, and the third wire 3C as the wire 3.
- Each wire 3A, 3B and 3C extends in the Y direction.
- the wires 3A, 3B and 3C are arranged so as to correspond to the assumed load points P1, P2 and P3, respectively.
- the lengths of the wires 3A, 3B and 3C are the same. However, the lengths of the wires 3A, 3B and 3C may be different from each other.
- the first end 31 of the first wire 3A is joined to the first position 211 in the first region A1 corresponding to the first load assumed point P1.
- the second end 32 of the first wire 3A is joined to the second position 212 in the second region A2 corresponding to the first assumed load point P1.
- FIG. 14 is a diagram showing a stiffening structure 1 of the panel component 2 of the seventh embodiment.
- FIG. 14 shows a plan view of the stiffening structure 1 when the panel component 2 is viewed from the inside I.
- the stiffening structure 1 of the seventh embodiment is a modification of the stiffening structure 1 of the first embodiment.
- the points different from those of the first embodiment will be mainly described.
- the stiffening structure 1 of the present embodiment includes the first wire 3A, the second wire 3B, and the third wire 3C as wires.
- the first wire 3A extends in the X direction.
- the second wire 3B is arranged on a straight line so as to intersect the first wire 3A at an angle.
- the third wire 3C extends in a direction substantially orthogonal to the second wire 3B.
- the third load assumed point P3 and the fourth load assumed point P4 are arranged in this order from the first side edge portion 22A to the second side edge portion 22B of the panel main body portion 21.
- the first assumed load point P1 and the third assumed load point P3 are arranged so as to be aligned in the X direction.
- the second assumed load point P2 and the fourth assumed load point P4 are arranged so as to be aligned in the X direction.
- the outward deformation region A corresponding to the first load assumed point P1 is connected in an annular shape around the first load assumed point P1. Therefore, for example, in the cross section when the panel main body 21 is cut on a plane perpendicular to the Y direction, outward deformation regions A exist on both sides of the first load assumed point P1.
- the outward deformation region A on one side can be regarded as the first region
- the outward deformation region A on the other side can be regarded as the second region.
- the first end portion 31 of the first wire 3A is joined to the first position in the outward deformation region A which is regarded as the first region.
- the second end 32 of the first wire 3A is joined to a second position in the outward deformation region A, which is considered to be the second region.
- the stiffening structure 1 of the present embodiment the same effects as those of the sixth and seventh embodiments can be obtained. That is, according to the stiffening structure 1 of the present embodiment, even when the panel main body 21 is curved in multiple directions and there are a plurality of assumed load points on the panel main body 21, tension is applied to each assumed load point. Rigidity can be improved.
- FIG. 16 and 17 are views showing a stiffening structure 1 of the panel component 2 of the ninth embodiment.
- FIG. 16 shows a cross-sectional view of the stiffening structure 1 when the panel component 2 is cut along a plane perpendicular to the X direction.
- FIG. 17 shows a plan view of the stiffening structure 1 when the panel component 2 shown in FIG. 16 is viewed from the inside I.
- the stiffening structure 1 of the ninth embodiment is a modification of the stiffening structure 1 of the first embodiment.
- the points different from those of the first embodiment will be mainly described.
- the outward deformation region of the present embodiment is connected in an annular shape around the central portion (receiving portion 25) of the panel main body 21. Therefore, for example, in the cross section when the panel main body 21 is cut on a plane perpendicular to the X direction, outward deformation regions exist on both sides of the receiving portion 25 (load assumption point) of the panel main body 21.
- the outward deformation region on one side can be regarded as the first region A1
- the outward deformation region on the other side can be regarded as the second region A2.
- the first end portion 31 of the wire 3 is joined to the first position 211 of the inner surface 21a of the panel main body portion 21 by the adhesive 4.
- the second end portion 32 of the wire 3 is joined to the second position 212 of the inner surface 21a of the panel main body portion 21 by the adhesive 4. Since the receiving portion 25 exists between the first position 211 and the second position 212, the wire 3 is stretched from the first position 211 to the second position 212 via the receiving portion 25. That is, the wire 3 is supported by the receiving portion 25. In this case, the wire body 34 is in contact with the receiving portion 25 and is bent at the position of the receiving portion 25.
- the wire 3 extends in a straight line between the first position 211 and the receiving portion 25, and extends in a straight line between the second position 212 and the receiving portion 25. Further, the wire main body 34 extending between the first position 211 and the receiving portion 25 and the wire main body 34 extending between the second position 212 and the receiving portion 25 are separated from the inner surface of the panel main body portion 21. ing.
- the receiving portion 25 that supports the wire 3 is provided on the flat panel main body portion 21.
- the receiving portion 25 that supports the wire 3 may be provided on the panel main body portion 21 that is convexly curved to the outer side O. That is, the configuration in which the wire 3 is supported by the receiving portion 25 can be applied to the stiffening structure 1 of the first to eighth embodiments.
- the load F is applied to the flat panel main body 21 at two places spaced apart from each other in the Y direction. That is, the panel main body 21 has two assumed load points, that is, a first assumed load point P1 and a second assumed load point P2.
- the first assumed load point P1 and the second assumed load point P2 are arranged in this order from the first side edge portion 22A to the second side edge portion 22B of the panel main body portion 21.
- Receiving portions 25 are provided at the positions of the assumed load points P1 and P2, respectively.
- the stiffening structure 1 of the present embodiment as in the ninth embodiment, there is a corresponding outward deformation region for each of the assumed load points P1 and P2 (receiving portion 25). Then, the wires 3 are provided for the outward deformation regions of the assumed load points P1 and P2 as in the ninth embodiment.
- the same effects as those of the sixth and ninth embodiments can be obtained. That is, according to the stiffening structure 1 of the present embodiment, even when the panel main body 21 is flat and there are a plurality of assumed load points on the panel main body 21, the tension rigidity is increased for each assumed load point. Can be improved.
- the number of receiving portions 25 is five.
- the five receiving portions 25 are arranged side by side in the X direction at equal intervals from each other.
- one wire 3 is provided for each receiving portion 25.
- the wire 3 extends in the Y direction from the side of the first side edge portion 22A toward the side of the second side edge portion 22B.
- the five wires 3 are arranged side by side in the X direction at equal intervals from each other.
- the panel component 2 having the stiffening structure 1D of the eleventh embodiment was prepared. Further, for comparison, a panel component 2 having a non-rigid structure 1E without a wire and a receiving portion was prepared. A load of 90 N was applied to each panel component 2, and the amount of deflection was investigated.
- the main conditions for the stiffened structure 1D and the non-stiffened structure 1E are shown below.
- the material of the wire 3 was a rolled steel material for general structure SS400 (JIS G 3101).
- the wire 3 was a single wire and had a diameter of 2.0 mm.
- the length of the wire 3 was 275 mm.
- the adhesive 4 for joining the wire 3 and the panel component 2 a low-odor acrylic adhesive Y-600 manufactured by Cemedine Co., Ltd. was used.
- the plate thickness t of the panel component 2 was 0.4 mm.
- the plate thickness t of these four panel parts 2 was 0.4 mm, 0.5 mm, 0.6 mm, and 0.7 mm, respectively.
- the amount of bending of the panel part 2 in the stiffening structure 1D is larger than the amount of bending of the panel part 2 in the non-rigid structure 1E.
- the weight per unit area of the panel component 2 in the stiffening structure 1D was significantly smaller than that of the non-stiffening structure 1E composed of only the panel component 2 in which the plate thickness t was increased to 0.5 mm or more.
- FIG. 21 is a diagram showing a stiffening structure 1 of the panel component 2 of the twelfth embodiment.
- FIG. 21 shows a cross-sectional view of the stiffening structure 1 when the panel component 2 is cut along a plane perpendicular to the X direction.
- the stiffening structure 1 of the twelfth embodiment is a modification of the stiffening structure 1 of the eleventh embodiment.
- the points different from the eleventh embodiment will be mainly described.
- FIG. 22 is a diagram showing a stiffening structure 1 of the panel component 2 of the thirteenth embodiment.
- FIG. 22 shows a cross-sectional view of the stiffening structure 1 when the panel component 2 is cut along a plane perpendicular to the X direction.
- the stiffening structure 1 of the thirteenth embodiment is a modification of the stiffening structure 1 of each of the above-described embodiments.
- the points different from each of the above embodiments will be mainly described.
- the stiffening structure 1 of the present embodiment includes a panel component 2, an auxiliary component 5, and a wire 3.
- the panel component 2 includes the panel main body 21, and the panel main body 21 is curved outward O.
- a first auxiliary part 5A and a second auxiliary part 5B are arranged as auxiliary parts 5 on the inner side I of the panel part 2.
- the first auxiliary part 5A and the second auxiliary part 5B are integrated with the panel part 2.
- the stiffening structure 1 of the present embodiment includes the first wire 3A and the second wire 3B as the wire 3.
- the first wire 3A is arranged at a position closer to the first side edge portion 22A of the panel component 2
- the second wire 3B is arranged at a position closer to the second side edge portion 22B of the panel component 2.
- the length of the first wire 3A is different from the length of the second wire 3B.
- the length of the first wire 3A may be the same as the length of the second wire 3B.
- the first end 31 of the first wire 3A is joined to the first position 211 of the panel body 21 (the panel body of the door outer panel).
- the second end 32 of the first wire 3A is joined to the second auxiliary component 5B (door impact beam). Then, the first wire 3A is stretched from the first position 211 to the second auxiliary part 5B.
- first end portion 31 of the second wire 3B is joined to the second position 212 of the panel main body portion 21 (the panel main body portion of the door outer panel).
- the second end 32 of the second wire 3B is joined to the second auxiliary component 5B (door impact beam). Then, the second wire 3B is stretched from the second position 212 to the second auxiliary part 5B.
- the first wire 3A extends in a straight line between the first position 211 and the second auxiliary part 5B. Further, the first wire 3 extending between the first position 211 and the second auxiliary component 5B is separated from the inner surface 21a of the panel main body 21. Further, the second wire 3B extends in a straight line between the second position 212 and the second auxiliary component 5B. Further, the second wire 3B extending between the second position 212 and the second auxiliary component 5B is separated from the inner surface 21a of the panel main body 21.
- the stiffening structure 1 of the present embodiment when a load F is applied to the panel main body portion 21, tension T is generated in each of the wires 3A and 3B as in the first embodiment, and the first position of the panel main body portion 21
- the 211 and the second position 212 receive the reaction force of the tension T from the wires 3A and 3B, respectively.
- deformation of the first position 211 and the second position 212 of the panel main body 21 is suppressed.
- the deformation of the first position 211 and the second position 212 is suppressed, so that the deformation of the first region A1 and the second region A2 is suppressed. That is, the deformation of the outward deformation region is suppressed.
- the deformation of the assumed load point to which the load F is applied is suppressed.
- the first wire 3A is provided to suppress the deformation of the first position 211 of the panel main body 21, and the second wire 3B is provided to suppress the deformation of the second position 212 of the panel main body 21. It is provided. However, only one of the first wire 3A and the second wire 3B may be provided. That is, only the first wire 3A may be provided, or only the second wire 3B may be provided. This is because if the deformation of either the first position 211 or the second position 212 is suppressed in the panel main body 21, the deformation of the assumed load point to which the load F is applied is suppressed to some extent. ..
- the first end portion 31 of the first wire 3A is joined to the first position 211 of the panel main body portion 21 (the panel main body portion of the door outer panel).
- the second end 32 of the first wire 3A is joined to the first auxiliary part 5A (door inner panel). Then, the first wire 3A is stretched from the first position 211 to the first auxiliary component 5A.
- first end portion 31 of the second wire 3B is joined to the second position 212 of the panel main body portion 21 (the panel main body portion of the door outer panel).
- the second end 32 of the second wire 3B is joined to the first auxiliary part 5A (door inner panel). Then, the second wire 3B is stretched from the second position 212 to the first auxiliary part 5A.
- the first wire 3A extends in a straight line between the first position 211 and the first auxiliary part 5A. Further, the first wire 3 extending between the first position 211 and the first auxiliary component 5A is separated from the inner surface 21a of the panel main body 21. Further, the second wire 3B extends in a straight line between the second position 212 and the first auxiliary component 5A. Further, the second wire 3B extending between the second position 212 and the first auxiliary component 5A is separated from the inner surface 21a of the panel main body 21.
- FIG. 24 is a diagram showing a stiffening structure 1 of the panel component 2 of the fifteenth embodiment.
- FIG. 24 shows a cross-sectional view of the stiffening structure 1 when the panel component 2 is cut along a plane perpendicular to the X direction.
- the stiffening structure 1 of the fifteenth embodiment is a modification of the stiffening structure 1 of the thirteenth embodiment.
- the points different from the thirteenth embodiment will be mainly described.
- the stiffening structure 1 of the present embodiment can also achieve the same effect as that of the thirteenth embodiment.
- the panel component 2 is flat over the entire area. Therefore, the panel body 21 is flat.
- the first end 31 of the first wire 3A is joined to the first position 211 of the panel body 21.
- the first end 31 of the second wire 3B is joined to the second position 212 of the panel body 21.
- the second end 32 of each of the first wire 3A and the second wire 3B is joined to the bottom of the first auxiliary part 5A.
- the stiffening structure 1 of the present embodiment can also achieve the same effect as that of the 14th embodiment.
- FIG. 26 is a diagram showing a stiffening structure 1F of the panel component 2 of the 17th embodiment.
- FIG. 26 shows a cross-sectional view of the stiffening structure 1F when the panel component 2 is cut along a plane perpendicular to the X direction.
- the stiffening structure 1F of the 17th embodiment is a modification of the stiffening structure 1 of the 14th embodiment.
- the points different from those of the 14th embodiment will be mainly described.
- the stiffening structure 1F of the present embodiment includes the first auxiliary part 5A (door inner panel) as the auxiliary part 5, but does not include the second auxiliary part 5B (door impact beam).
- the number of the first wires 3A is five.
- the number of the second wire 3B is five. That is, the total number of wires 3 is 10.
- the length of the first wire 3A is the same as the length of the second wire 3B.
- the first wire 3A intersects the second wire 3B.
- the five first wires 3A are arranged side by side in the X direction at equal intervals from each other.
- the five second wires 3B are also arranged side by side in the X direction at equal intervals from each other.
- the first end 31 of the first wire 3A is joined to the first position 211 of the panel body 21.
- the first end 31 of the second wire 3B is joined to the second position 212 of the panel body 21.
- the second end 32 of each of the first wire 3A and the second wire 3B is joined to the bottom of the first auxiliary part 5A.
- FIG. 27 is a diagram showing the results of a fourth weighted test relating to the stiffening structure of the 17th embodiment.
- FIG. 27 shows the relationship between the weight per unit area of the panel component and the amount of deflection of the panel component. Similar to the first weighting test, the amount of deflection means the amount of displacement of the portion of the panel body to which a load is applied (assumed load point).
- the panel component 2 having the stiffening structure 1F of the 17th embodiment was prepared. Further, for comparison, a panel component 2 having a non-rigid structure 1G without wires was prepared. Both panel parts 2 were joined to the first auxiliary part 5A. A load of 90 N was applied to each panel component 2, and the amount of deflection was investigated.
- the main conditions for the stiffened structure 1F and the non-stiffened structure 1G are shown below.
- the material of the panel part 2 was JSC270D (Japan Iron and Steel Federation standard (JFS)), which is a cold-rolled steel sheet for automobiles.
- the panel component 2 has a square shape in a plan view when viewed from the Z direction, and the length of each side constituting the contour is 400 mm.
- the height from the bottom of the first auxiliary part 5A to the joint portion between the first end portion 31 of the first wire 3A and the second position 212 of the panel main body portion 21 was set to 100 mm.
- the material of the first auxiliary part 5A was the same as that of the panel part 2.
- the material of the wire 3 was a rolled steel material for general structure SS400 (JIS G 3101).
- the wire 3 was a single wire and had a diameter of 2.0 mm.
- the length of the wire 3 was 275 mm.
- the adhesive 4 for joining the wire 3 and the panel component 2 a low-odor acrylic adhesive Y-600 manufactured by Cemedine Co., Ltd. was used.
- the plate thickness t of the panel component 2 was 0.4 mm.
- the plate thickness t of these four panel parts 2 was 0.4 mm, 0.5 mm, 0.6 mm, and 0.7 mm, respectively.
- the plate thickness of the first auxiliary part 5A was 0.75 mm.
- Panel parts 21 Panel body 21a: Inner surface of panel body 211: First position 212: Second position A: Outward deformation area A1: First area A2: 2nd area 25: Receiving part 3, 3A, 3B, 3C: Wire 31: 1st end 32: 2nd end P1: 1st load assumed point P2: 2nd load assumed point P3: 3rd load assumed Point P4: 4th load assumed point 4: Adhesive 5: Auxiliary part 5A: 1st auxiliary part 5B: 2nd auxiliary part
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Abstract
Description
図1~図5を参照して、第1実施形態のパネル部品2の補剛構造1を説明する。本実施形態の補剛構造1において、補剛されるパネル部品2は、自動車用の外板パネルである。外板パネルとしては、ドアアウタパネル、フード、ルーフ及びフェンダが挙げられる。本明細書では、パネル部品2の補剛構造1で方向を示すとき、相互に直交するX方向、Y方向及びZ方向を用いる場合がある。X方向及びY方向は、パネル部品2を平面で見たときのパネル部品2の広がる方向である。Z方向は、パネル部品2の広がる方向に垂直な方向であり、Z方向によってパネル部品2の外側Oと内側Iが示される。
本実施形態のパネル部品2は、Z方向に沿って見たときの平面視で矩形状を有する。パネル部品2はパネル本体部21を含む。パネル部品2は、パネル本体部21のY方向の一方の端につながる第1側縁部22Aを含む。パネル部品2は、パネル本体部21のY方向の他方の端につながる第2側縁部22Bを含む。
ワイヤ3は、金属製のワイヤ(金属ワイヤ)で構成される。具体的には、ワイヤ3は、鋼製のワイヤ(鋼ワイヤ)で構成される。金属製のワイヤ3は、1本の線材からなる単線である。ただし、金属製のワイヤ3は、複数本の線材が撚られてなる撚線であってもよい。ワイヤ3は、細長い線状の部材である。例えば、ワイヤ3の直径は2.0mmである。ワイヤの直径は、0.3~3.0mmであればよい。
以下に、本実施形態の補剛構造1による作用及び効果について説明する。
図6は、第2実施形態のパネル部品2の補剛構造1Aを示す図である。図6には、パネル部品2を内側Iから見たときの補剛構造1Aの平面図が示される。第2実施形態の補剛構造1Aは、第1実施形態の補剛構造1を変形したものである。以下、主に、第1実施形態と異なる点を説明する。
図7は、第3実施形態のパネル部品2の補剛構造1Bを示す図である。図7には、パネル部品2を内側Iから見たときの補剛構造1Bの平面図が示される。第3実施形態の補剛構造1Bは、第2実施形態の補剛構造1Aを変形したものである。以下、主に、第2実施形態と異なる点を説明する。
図8は、第2及び第3実施形態の補剛構造に関する第1加重試験の結果を示す図である。図8には、パネル部品に加えられる荷重とパネル部品の撓み量との関係が示される。撓み量は、パネル本体部のうちで荷重が加えられた部分(荷重想定点)の変位量を意味する。
図9は、第2及び第3実施形態の補剛構造に関する第2加重試験の結果を示す図である。図9には、パネル部品の単位面積当たりの重量とパネル部品の撓み量との関係が示される。第1加重試験と同様に、撓み量は、パネル本体部のうちで荷重が加えられた部分(荷重想定点)の変位量を意味する。
図10は、第4実施形態のパネル部品2の補剛構造1を示す図である。図10には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第4実施形態の補剛構造1は、第1実施形態の補剛構造1を変形したものである。以下、主に、第1実施形態と異なる点を説明する。
図11は、第5実施形態のパネル部品2の補剛構造1を示す図である。図11には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第5実施形態の補剛構造1は、第1実施形態の補剛構造1を変形したものである。以下、主に、第1実施形態と異なる点を説明する。
図12及び図13は、第6実施形態のパネル部品2の補剛構造1を示す図である。図12には、パネル部品2を内側Iから見たときの補剛構造1の平面図が示される。図13には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の一部の断面図が示される。第6実施形態の補剛構造1は、第1実施形態の補剛構造1を変形したものである。以下、主に、第1実施形態と異なる点を説明する。
図14は、第7実施形態のパネル部品2の補剛構造1を示す図である。図14には、パネル部品2を内側Iから見たときの補剛構造1の平面図が示される。第7実施形態の補剛構造1は、第1実施形態の補剛構造1を変形したものである。以下、主に、第1実施形態と異なる点を説明する。
図15は、第8実施形態のパネル部品2の補剛構造1を示す図である。図15には、パネル部品2を内側Iから見たときの補剛構造1の平面図が示される。第8実施形態の補剛構造1は、第7実施形態の補剛構造1に第6実施形態の技術思想を適用したものである。以下、主に、第7実施形態と異なる点を説明する。
図16及び図17は、第9実施形態のパネル部品2の補剛構造1を示す図である。図16には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。図17には、図16に示すパネル部品2を内側Iから見たときの補剛構造1の平面図が示される。第9実施形態の補剛構造1は、第1実施形態の補剛構造1を変形したものである。以下、主に、第1実施形態と異なる点を説明する。
図18は、第10実施形態のパネル部品2の補剛構造1を示す図である。図18には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第10実施形態の補剛構造1は、第9実施形態の補剛構造1に第6実施形態の技術思想を適用したものである。以下、主に、第9実施形態と異なる点を説明する。
図19は、第11実施形態のパネル部品2の補剛構造1Dを示す図である。図19には、パネル部品2を内側Iから見たときの補剛構造1Dの平面図が示される。第11実施形態の補剛構造1Dは、第9実施形態の補剛構造1を変形したものである。以下、主に、第9実施形態と異なる点を説明する。
図20は、第11実施形態の補剛構造に関する第3加重試験の結果を示す図である。図20には、パネル部品の単位面積当たりの重量とパネル部品の撓み量との関係が示される。第1加重試験と同様に、撓み量は、パネル本体部のうちで荷重が加えられた部分(荷重想定点)の変位量を意味する。
図21は、第12実施形態のパネル部品2の補剛構造1を示す図である。図21には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第12実施形態の補剛構造1は、第11実施形態の補剛構造1を変形したものである。以下、主に、第11実施形態と異なる点を説明する。
図22は、第13実施形態のパネル部品2の補剛構造1を示す図である。図22には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第13実施形態の補剛構造1は、上記の各実施形態の補剛構造1を変形したものである。以下、主に、上記の各実施形態と異なる点を説明する。
図23は、第14実施形態のパネル部品2の補剛構造1を示す図である。図23には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第14実施形態の補剛構造1は、第13実施形態の補剛構造1を変形したものである。以下、主に、第13実施形態と異なる点を説明する。
図24は、第15実施形態のパネル部品2の補剛構造1を示す図である。図24には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第15実施形態の補剛構造1は、第13実施形態の補剛構造1を変形したものである。以下、主に、第13実施形態と異なる点を説明する。
図25は、第16実施形態のパネル部品2の補剛構造1を示す図である。図25には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1の断面図が示される。第16実施形態の補剛構造1は、第14実施形態の補剛構造1を変形したものである。以下、主に、第14実施形態と異なる点を説明する。
図26は、第17実施形態のパネル部品2の補剛構造1Fを示す図である。図26には、パネル部品2をX方向に垂直な面で切断したときの補剛構造1Fの断面図が示される。第17実施形態の補剛構造1Fは、第14実施形態の補剛構造1を変形したものである。以下、主に、第14実施形態と異なる点を説明する。
図27は、第17実施形態の補剛構造に関する第4加重試験の結果を示す図である。図27には、パネル部品の単位面積当たりの重量とパネル部品の撓み量との関係が示される。第1加重試験と同様に、撓み量は、パネル本体部のうちで荷重が加えられた部分(荷重想定点)の変位量を意味する。
2:パネル部品
21:パネル本体部
21a:パネル本体部の内面
211:第1位置
212:第2位置
A:外向き変形領域
A1:第1領域
A2:第2領域
25:受け部
3、3A、3B、3C:ワイヤ
31:第1端部
32:第2端部
P1:第1荷重想定点
P2:第2荷重想定点
P3:第3荷重想定点
P4:第4荷重想定点
4:接着剤
5:補助部品
5A:第1補助部品
5B:第2補助部品
Claims (13)
- 外側に凸に湾曲したパネル本体部を含むパネル部品と、
第1端部及び第2端部を有するワイヤであって、前記パネル本体部のうちの第1位置の内面に前記第1端部が接合されるとともに、前記パネル本体部のうちの第2位置の内面に前記第2端部が接合されて、前記第1位置から前記第2位置に張り渡された前記ワイヤと、
を備える、パネル部品の補剛構造。 - 請求項1に記載のパネル部品の補剛構造であって、
前記パネル本体部は、
外側から荷重が加えられることが想定された荷重想定点と、
前記ワイヤが無い状態で前記荷重想定点に外側から荷重が加えられたときに、前記荷重の向きとは逆向きで且つ前記荷重想定点から遠ざかる方向に変位する第1領域及び第2領域と、を含み、
前記第2領域は前記荷重想定点に対して前記第1領域とは反対側に位置し、
前記第1位置が前記第1領域に設定され、前記第2位置が前記第2領域に設定されている、パネル部品の補剛構造。 - 平坦な又は外側に凸に湾曲したパネル本体部を含むパネル部品と、
前記パネル部品の内側に配置されて、前記パネル部品と一体化された補助部品と、
第1端部及び第2端部を有するワイヤであって、前記パネル本体部のうちの第1位置の内面に前記第1端部が接合されるとともに、前記補助部品に前記第2端部が接合されて、前記第1位置から前記補助部品に張り渡された前記ワイヤと、
を備える、パネル部品の補剛構造。 - 請求項3に記載のパネル部品の補剛構造であって、
前記パネル本体部は、
外側から荷重が加えられることが想定された荷重想定点と、
前記ワイヤが無い状態で前記荷重想定点に外側から荷重が加えられたときに、前記荷重の向きとは逆向きで且つ前記荷重想定点から遠ざかる方向に変位する第1領域と、を含み、
前記第1位置が前記第1領域に設定されている、パネル部品の補剛構造。 - 平坦な又は外側に凸に湾曲したパネル本体部を含むパネル部品と、
前記パネル本体部の内面から突出する受け部と、
第1端部及び第2端部を有するワイヤであって、前記パネル本体部のうちの第1位置の内面に前記第1端部が接合されるとともに、前記パネル本体部のうち前記受け部に対して前記第1位置とは反対側の第2位置の内面に前記第2端部が接合されて、前記受け部を介して前記第1位置から前記第2位置に張り渡された前記ワイヤと、
を備える、パネル部品の補剛構造。 - 請求項5に記載のパネル部品の補剛構造であって、
前記パネル本体部は、
外側から荷重が加えられることが想定された荷重想定点と、
前記ワイヤが無い状態で前記荷重想定点に外側から荷重が加えられたときに、前記荷重の向きとは逆向きで且つ前記荷重想定点から遠ざかる方向に変位する第1領域及び第2領域と、を含み、
前記第2領域は前記荷重想定点に対して前記第1領域とは反対側に位置し、
前記第1位置が前記第1領域に設定され、前記第2位置が前記第2領域に設定されており、
前記受け部が前記第1領域と前記第2領域との間に設けられている、パネル部品の補剛構造。 - 請求項1から6のいずれか1項に記載のパネル部品の補剛構造であって、
前記パネル部品が金属製である、パネル部品の補剛構造。 - 請求項7に記載のパネル部品の補剛構造であって、
前記パネル部品が鋼製である、パネル部品の補剛構造。 - 請求項1から8のいずれか1項に記載のパネル部品の補剛構造であって、
前記ワイヤが金属ワイヤである、パネル部品の補剛構造。 - 請求項9に記載のパネル部品の補剛構造であって、
前記ワイヤが鋼ワイヤである、パネル部品の補剛構造。 - 請求項7から10のいずれか1項に記載のパネル部品の補剛構造であって、
前記パネル部品の材質は、前記ワイヤの材質と同種である、パネル部品の補剛構造。 - 請求項1から7のいずれか1項に記載のパネル部品の補剛構造であって、
前記ワイヤがCFRP線である、パネル部品の補剛構造。 - 請求項1から12のいずれか1項に記載のパネル部品の補剛構造であって、
前記パネル部品は、自動車用の外板パネルである、パネル部品の補剛構造。
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EP21759674.1A EP4112426A4 (en) | 2020-02-28 | 2021-02-26 | STIFFENING STRUCTURE FOR PLATE COMPONENT |
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JP2022503757A JP7381963B2 (ja) | 2020-02-28 | 2021-02-26 | パネル部品の補剛構造 |
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