WO2022255498A1 - 自動車パネルおよびその製造方法 - Google Patents
自動車パネルおよびその製造方法 Download PDFInfo
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- WO2022255498A1 WO2022255498A1 PCT/JP2022/022800 JP2022022800W WO2022255498A1 WO 2022255498 A1 WO2022255498 A1 WO 2022255498A1 JP 2022022800 W JP2022022800 W JP 2022022800W WO 2022255498 A1 WO2022255498 A1 WO 2022255498A1
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Images
Classifications
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- 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
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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
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- 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
- B62D25/12—Parts or details thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/026—Connections by glue bonding
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- 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
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- 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
- B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
- F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like
-
- 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
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
Definitions
- the present invention relates to an automobile panel and its manufacturing method.
- Patent Document 1 discloses a vehicle hood panel. This hood panel is mainly aimed at reducing the injury value given to a pedestrian when the pedestrian collides with the hood panel.
- Patent Document 2 discloses an automobile hood as an automobile exterior product. This car hood focuses on absorbing the energy of contact with a small amount of deformation inward of the car when a pedestrian comes into contact with the car hood.
- the inner panel and the outer panel are joined with an adhesive.
- a mastic sealer or the like is known as an adhesive for joining the inner panel and the outer panel.
- the mastic sealer is sandwiched between the inner panel and the outer panel by applying the mastic sealer to the outer panel and then overlapping the inner panel and the outer panel. As a result, the inner panel and the outer panel are joined together via the mastic sealer.
- the work of applying the mastic sealer to the outer panel is performed, for example, by a robot arm holding a nozzle that supplies the sealer.
- the time it takes to apply the sealer to one automotive panel is sometimes referred to as the cycle time. Shortening the tact time is preferable from the viewpoint of increasing the production efficiency of automobile hoods.
- Patent Documents 1 nor 2 specifically disclose a configuration for efficiently applying an adhesive such as a mastic sealer.
- One of the purposes of the present invention is to provide an automobile panel that can be produced efficiently and a manufacturing method thereof.
- the gist of the present invention is the following automobile panel and its manufacturing method.
- the inner includes a plurality of units arranged in a predetermined first direction and a plurality of units arranged in a second direction intersecting the first direction when viewed in the plate thickness direction of the outer, each unit includes a flange adjacent to the outer, a vertical wall extending from the flange away from the outer, and a bottom continuous with the vertical wall and spaced apart from the flange;
- the plurality of units includes a plurality of joint-equipped units in which the joint is provided on the flange, A predetermined first or second configuration is provided, In the first form, in some of the units with joints, the joints are arranged in an array including the predetermined pattern, and in the remaining units with joints, the joints are arranged in the predetermined pattern. Arranged in an array containing part of In the second form, in each of all the joint-equipped units, the plurality of joints are arranged in an array including the predetermined pattern.
- the predetermined pattern and the predetermined pattern are arranged in a linear direction
- the linear direction is at least one of the first direction, the second direction, and a third direction that intersects both the first direction and the second direction.
- the automotive panel according to any one of items 1 and 2.
- the joint-attached unit has the joint provided in a part of the predetermined pattern or, in addition to the predetermined pattern, at a location deviated from the layout of the joint in the predetermined pattern.
- the automotive panel according to any one of (1) to (5), further comprising a unit with additional joints.
- the unit with joint includes an annular unit with joint in which the joint is provided on the flange that is annularly formed when viewed in the plate thickness direction, A plurality of the annular joint-attached units are provided,
- the outer is a steel plate having a thickness of 0.60 mm or less and an ultimate yield stress of 400 MPa or more;
- the outer is an aluminum plate having a thickness of 0.75 mm or less
- a plurality of adhesives arranged including at least part of a predetermined pattern applying the adhesive to the application target using an applicator including a nozzle of The plurality of nozzles are configured to be individually switchable on/off of the supply of the adhesive,
- the adhesive is applied to the application target in an arrangement including at least part of the predetermined pattern by supplying the adhesive from all the nozzles at once, or the adhesive is applied from a part of the nozzles.
- a method for manufacturing an automobile panel wherein the adhesive is applied to the application target in a partial arrangement of the predetermined pattern by supplying an agent.
- the inner includes a plurality of units arranged in a predetermined first direction when viewed in the plate thickness direction of the outer and a plurality of units arranged in a second direction intersecting the first direction;
- automobile panels can be manufactured efficiently.
- FIG. 1 is a schematic exploded perspective view of an automobile hood according to an embodiment of the present invention, omitting illustration of a joint.
- FIG. 2 is a plan view of the inner panel of the automobile hood.
- FIG. 3 is a schematic cross-sectional view along line III-III in FIG.
- FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2, omitting a portion appearing behind the cross-section.
- FIG. 5 is an enlarged view of a part of FIG.
- FIG. 6 is a plan view showing an enlarged unit.
- 7 is an enlarged view of the overhang structure of FIG. 2;
- FIG. 8A is a schematic diagram of an example of a coating machine.
- FIG. 8B is a schematic diagram of another example of a coating machine.
- FIG. 9 is a schematic plan view for explaining how the applicator applies the adhesive.
- FIG. 10 is a diagram for explaining a first modification of the first embodiment.
- FIG. 11 is a diagram for explaining a second modification of the first embodiment.
- FIG. 12 is a diagram for explaining a third modification of the first embodiment;
- FIG. 13 is a diagram for explaining the arrangement of joints according to the second embodiment.
- FIG. 14 is a schematic plan view for explaining how the applicator applies the adhesive in the second embodiment.
- FIG. 15 is a diagram for explaining a first modification of the second embodiment.
- FIG. 16 is a diagram for explaining a second modification of the second embodiment.
- FIG. 17 is a diagram for explaining a third modification of the second embodiment.
- FIG. 18 is a diagram for explaining the arrangement of joints according to the third embodiment.
- FIG. 10 is a diagram for explaining a first modification of the first embodiment.
- FIG. 11 is a diagram for explaining a second modification of the first embodiment.
- FIG. 12 is
- FIG. 19 is a schematic plan view for explaining how an applicator applies adhesive in the third embodiment.
- FIG. 20 is a diagram for explaining the first modification of the third embodiment.
- FIG. 21 is a diagram for explaining a second modification of the third embodiment.
- FIG. 22 is a diagram for explaining a third modification of the third embodiment.
- FIG. 23(A) is a schematic plan view of an inner panel showing the main parts of the first modified example of the unit.
- FIG. 23(B) is a plan view showing the main part of FIG. 23(A).
- FIG. 23(C) is a cross-sectional view along line XXIIIC-XXIIIC of FIG. 23(B).
- FIG. 24A is a diagram for explaining another example of the first modification of the unit.
- FIG. 24A is a diagram for explaining another example of the first modification of the unit.
- FIG. 24B is a diagram for explaining still another example of the first modification of the unit.
- FIG. 25(A) is a schematic plan view showing the main part of the second modification of the unit.
- FIG. 25B is a cross-sectional view along line XXVB-XXVB of FIG. 25A.
- FIG. 16 is a diagram showing another example of the second modification of the unit.
- automotive panels have an outer panel with a relatively flat shape, while an inner panel has an uneven shape.
- a sealer adheresive
- a mastic sealer is applied to a portion of the inner panel that protrudes toward the outer panel.
- the sealer contacts and joins the inner and outer panels.
- the vehicle hood has a smaller height (thickness) in the vehicle height direction than the vehicle length and width directions of the vehicle. Therefore, when applying sealer to the outer panel or inner panel during automobile hood assembly, the amount of movement of the sealer application nozzle in the direction perpendicular to the thickness direction of the automobile hood (vehicle length direction and vehicle width direction) Affects coating time.
- the tact time refers to the working time for applying a sealer that serves as a joint for joining an outer and an inner when manufacturing one automobile panel.
- the tensile rigidity is a press-formed product that has a relatively gently curved surface and has a very large surface area relative to the thickness of the plate, for example, the outer panel of an automobile hood. refers to stiffness.
- the tension stiffness corresponds to the sense of elastic resistance and flexural deformation when the panel is pressed by hand. This characteristic is usually represented by the amount of deflection when a load is applied, and the smaller the amount of deflection when a certain load is applied, the higher the tensile rigidity.
- dent resistance refers to how difficult it is for dents (dent marks) to remain after the load is removed if a local load is applied to the panel for some reason.
- dent marks are generated when an outer panel such as a door is strongly pressed with a finger or palm, or when a stepping stone hits the panel while driving.
- a dent mark is generated by plastic deformation of a portion of a panel to which a load is applied. Therefore, when the strain of the panel reaches a certain level when the panel is loaded, the strain remains even after the load is removed, resulting in dent marks.
- the minimum value of the load that causes a certain residual strain in the panel is called the dent load, and the larger the dent load, the better the dent resistance.
- the inventors of the present application conducted extensive research and found that using a plurality of sealer nozzles at once compared to the case where the number of nozzles is one, even if the paths of the sealer nozzles are the same. , unit time, the number of nozzles multiplied by the place where it is possible to apply the sealer. More specifically, normally, even if a coater capable of applying the sealer at a relatively high speed is used, only about two spots can be applied per second.
- the sealer can be arranged in a large number of places in a well-balanced manner, and it is possible to improve the tension rigidity and dent resistance.
- An example of the present invention will be specifically described below.
- FIG. 1 is a schematic exploded perspective view of an automobile hood 1 according to an embodiment of the present invention, omitting illustration of a joint 20.
- FIG. FIG. 2 is a plan view of the inner panel 2 of the automobile hood 1.
- FIG. 3 is a schematic cross-sectional view along line III-III in FIG.
- FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2, omitting a portion appearing behind the cross-section. 3 and 4, the outer panel 3, which is not shown in FIG. 2, is indicated by an imaginary chain double-dashed line.
- FIG. 5 is an enlarged view of a part of FIG.
- FIG. 6 is a plan view showing one unit 9 in an enlarged manner.
- FIG. 7 is an enlarged view of the overhang structure 6 of FIG. 1 to 7, unless otherwise specified.
- the automobile hood 1 is a front hood provided at the front of the automobile, and is also called a bonnet.
- An automobile provided with the automobile hood 1 is, for example, a passenger car.
- Examples of the passenger vehicle include a sedan type passenger car, a coupe type passenger car, a hatchback type passenger car, a minivan type passenger car, and an SUV (Sport Utility Vehicle) type passenger car.
- front and rear, left and right, and up and down are referred to when the vehicle hood 1 is attached to the vehicle and the vehicle hood 1 is closed.
- Forward is the direction in which the vehicle is moving forward.
- Rear is the direction in which the vehicle travels backward.
- Right is the direction in which a forward vehicle turns when it turns right.
- Left is the turning direction of a forward moving vehicle when it turns left.
- the vehicle width direction of the vehicle to which the vehicle hood 1 is attached is referred to as the width direction X.
- the vehicle length direction of the vehicle to which the vehicle hood 1 is attached is referred to as the length direction Y.
- the vehicle height direction of the vehicle to which the vehicle hood 1 is attached is referred to as the height direction Z.
- the automobile hood 1 includes an inner panel 2, an outer panel 3 supported by the inner panel 2, and an outer panel 3 provided between the inner panel 2 and the outer panel 3. a joint 20 joining the panels 2, 3 together.
- the outer panel 3 is a part of the vehicle hood 1 that forms part of the exterior surface of the vehicle.
- the outer panel 3 is made of, for example, a metal material such as a mild steel plate or a high-tensile steel plate. Examples of high-tensile steel sheets include steel sheets with a tensile strength of 340 MPa or more, for example, steel sheets with a tensile strength of 440 MPa or more.
- the outer panel 3 is formed, for example, by pressing one sheet of steel plate.
- the thickness of the outer panel 3 is, for example, 0.25 mm to 1.20 mm, preferably 0.6 to 0.7 mm.
- the outer panel 3 may be an aluminum alloy plate. When the outer panel 3 is an aluminum alloy plate, the thickness of the outer panel 3 is 0.40 to 1.20 mm, preferably 0.8 to 1.0 mm.
- the shape of the outer panel 3 is not particularly limited.
- the inner panel 2 stiffens the outer panel 3 by being joined to the lower surface 3a of the outer panel 3 using a joint portion 20. Thereby, the inner panel 2 enhances the tension rigidity of the outer panel 3 .
- the inner panel 2 is made of, for example, a metal material such as a mild steel plate or a high-strength steel plate.
- the inner panel 2 is formed, for example, by pressing a sheet of steel plate.
- the inner panel 2 may be an integrally molded product, or may be formed by joining a plurality of members together. In this embodiment, the inner panel 2 is an integrally molded product.
- the plate thickness of the inner panel 2 (the plate thickness of the steel plate) is, for example, 0.25 mm to 1.20 mm, preferably 0.55 mm to 0.60 mm.
- the thickness of the inner panel 2 may be less than the thickness of the outer panel 3 , may be the same as the thickness of the outer panel 3 , or may be greater than the thickness of the outer panel 3 .
- the inner panel 2 may be an aluminum alloy plate.
- the plate thickness of the inner panel 2 is 0.40 mm to 1.20 mm, preferably about 0.8 mm.
- a more preferable configuration is that the outer panel 3 is a steel plate having a thickness of 0.25 mm to 0.60 mm (0.60 mm or less) and an ultimate yield stress of 400 MPa or more,
- the panel 2 is a steel plate with a plate thickness of 0.25 to 0.50 mm (0.50 mm or less). With this configuration, the tensional rigidity and dent resistance of the outer panel 3 can be increased while increasing the strength and reducing the weight of the automobile hood 1 .
- a more preferable structure for the inner panel 2 is a steel plate with a plate thickness of 0.25 mm to 0.50 mm, and a more preferable structure is a steel plate with a plate thickness of 0.25 to 0.45 mm. With this configuration, it is possible to sufficiently ensure the tensional rigidity and dent resistance of the outer panel 3 while further reducing the weight of the automobile hood 1 .
- the plate thickness of the outer panel 3 is 0.40 to 0.75 mm (0.75 mm or less), and the inner panel 2 is 0.40 to 0.75 mm (0.75 mm or less).
- the inner panel 2 has an outer peripheral portion 4 and an overhang structure 6 arranged so as to be surrounded by the outer peripheral portion 4 .
- the outer peripheral portion 4 is the outer peripheral portion of the inner panel 2 .
- the outer peripheral portion 4 is a portion formed on the outer peripheral portion of the inner panel 2 .
- a protruding structure 6 is arranged so as to be surrounded by the outer peripheral portion 4 .
- the projecting structure 6 has a three-dimensional structure provided to receive a load acting on the upper surface 3b of the outer panel 3.
- the projecting structure 6 has a configuration in which members having a hat-shaped cross section (V-shaped cross section or U-shaped cross section) are combined.
- the protruding structure 6 has a plurality of incomplete units 8 and a plurality of units 9 adjacent to the outer peripheral portion 4 and continuous with the outer peripheral portion 4 .
- a unit 9 adjacent to the outer peripheral portion 4 of the inner panel 2 is connected to the outer peripheral portion 4 either directly or via an incomplete unit 8 .
- a plurality of incomplete units 8 and units 9 are arranged in a straight line along the width direction X (first direction) when viewed in the plate thickness direction of the outer panel 3, and the length direction Y (second direction) perpendicular to the width direction X. are arranged in a straight line along the A plurality of incomplete units 8 and units 9 may be arranged in each of two directions (first direction and second direction) that intersect each other when viewed in the thickness direction of the outer panel 3 .
- the first direction and the second direction are not limited to the width direction X and the length direction Y.
- the incomplete unit 8 has a configuration corresponding to a configuration in which a portion of the polygonal (hexagonal in this embodiment) unit 9 is cut along the circumferential direction.
- the incomplete unit 8 has a partial unit 10 similar to the partial unit 10 of the unit 9, which will be described later. A more detailed configuration of the incomplete unit 8 will be described later.
- Each unit 9 is formed in a polygonal (hexagonal in this embodiment) annular shape in plan view in the height direction Z (viewed in the plate thickness direction of the outer panel 3). Henceforth, when it is simply expressed as a planar view, it means a planar view in the height direction Z. As shown in FIG. Since each unit 9 is formed in a small ring-shaped polygonal shape, the inner panel 2 can be made lightweight and the inner panel 2 can be given high rigidity.
- each unit 9 is substantially formed in a regular hexagon with rounded corners.
- a regular hexagon is a hexagon whose sides are all equal in length and whose internal angles are 120 degrees.
- substantially regular hexagon refers to a hexagon that can be treated as a regular hexagon.
- Each unit 9 has the same shape. In the present embodiment, "same shape” includes not only the same shape but also the same shape except that the shape of each unit 9 is matched to the curved shape of the outer panel 3. there is
- Each unit 9 may be formed in a hexagon other than a regular hexagon.
- hexagons other than regular hexagons include hexagons with nonuniform side lengths and hexagons with interior angles of 120 degrees that are not uniform.
- the length of the front side and the length of the rear side are set to a predetermined first length, and a predetermined second length different from the first length can be exemplified by a hexagon having four sides each set to .
- the protruding structure 6 has a structure in which a plurality of hexagonal annular units 9 are arranged in the closest density.
- "closest density” means that a plurality of units 9 adjacent to each other are arranged without gaps.
- the unit 9 is partitioned from other units 9 at the unit boundary 14 .
- a tip 13c (lower end) of the bottom portion 13 forms a boundary of the bottom portion 13 including the tip 13c, thereby forming a unit boundary 14.
- This unit boundary 14 is formed in a hexagonal shape in plan view. With such a close-packed hexagonal arrangement, the overhang structure 6 can withstand loads in all directions, including the height direction Z, in a substantially similar manner over the entire area in a plan view.
- the plurality of units 9 When the flanges 11 of the units 9, which will be described later, are closely packed, it is preferable that the plurality of units 9 have the same shape. Alternatively, units 9 having different shapes or similar shapes may be arranged in close-packed fashion. In addition, in the projecting structure 6, the units 9 do not have to be closely packed, and other portions may be formed between the adjacent units 9,9. Also, the plurality of units 9 may have similar shapes to each other. In this case, the flanges 11 of the similar units 9 also have similar shapes.
- the plurality of units 9 are formed symmetrically in the width direction X as a whole in this embodiment.
- three units 9 are arranged in the front-rear direction at the center in the width direction X. As shown in FIG.
- the direction of the unit 9 is not restricted.
- each unit 9 arranged in the length direction Y is arranged in order toward the right side, and further arranged in the length direction Y.
- Three units 9 are arranged, two units 9 arranged in the longitudinal direction Y are arranged, and two units 9 arranged in the longitudinal direction Y are arranged.
- four units 9 aligned in the length direction Y are arranged in order from the three units 9 arranged at the center position in the width direction X toward the left side, and furthermore, four units 9 are arranged in the length direction Y.
- Three units 9 arranged in the Y direction, two units 9 arranged in the length direction Y, and two units 9 arranged in the length direction Y are arranged. In this manner, a plurality of units 9 having substantially the same shape are arranged linearly in each of the length direction Y (front-rear direction) and the width direction X. As shown in FIG.
- a plurality of units 9 aligned in the width direction X are arranged at a constant pitch in the width direction X, and furthermore, a plurality of units 9 aligned in the length direction Y are arranged in a long direction. They are arranged at a constant pitch in the vertical direction Y. Further, in the present embodiment, along the inclination direction C (C1 or C2) as the third direction (linear direction) perpendicular to both the width direction X as the first direction and the length direction Y as the second direction A unit 9 and an incomplete unit 8 are arranged on a straight line.
- the angle (minor angle) formed by the tilt direction C with respect to the width direction X is, for example, about 30 degrees.
- the tilt direction C1 is ⁇ 30 degrees clockwise with respect to the width direction X
- the tilt direction C2 is 30 degrees clockwise with respect to the width direction X.
- This angle (minor angle) is not particularly limited.
- the plurality of units 9 arranged along the inclination direction C are arranged obliquely toward the front right side along the inclination direction C1 when viewed in the plate thickness direction.
- the plurality of units 9 arranged along the inclination direction C can be said to be arranged obliquely toward the right rear side along the inclination direction C2 when viewed in the plate thickness direction.
- the overhang structure 6 has the widest length in the width direction X at substantially the center in the length direction Y of the inner panel 2 .
- each unit 9 has six partial units 10 (10a-10f).
- the front portion unit 10a and the rear portion unit 10d extend along the width direction X, respectively.
- the remaining four partial units 10 extend in a direction inclined with respect to the length direction Y in plan view.
- a polygonal unit 9 is formed by a plurality of partial units 10 .
- Each partial unit 10 (10a to 10f) includes a flange 11 arranged adjacent to the outer panel 3, a vertical wall 12 extending from the flange 11 so as to be separated from the outer panel 3, and a vertical wall 12 connected to the flange 11. and spaced apart bottoms 13 .
- the flange 11 is adjacent to the outer panel 3 and is the portion of the partial unit 10 that is arranged closest to the outer panel 3 .
- the flange 11 is a strip-like portion.
- the flanges 11 of the six partial units 10a to 10f form an annular flange 15 having a hexagonal outline as a whole.
- the annular flange 15 as a whole may form a polygonal flange other than a hexagon, may form a substantially circular flange, or may form a substantially elliptical flange.
- the inner ends 11a of the six flanges 11 are formed in a circular shape around the center of the annular unit 9 as a whole.
- the plurality of inner end portions 11a may be formed in a polygonal shape as a whole, or may be formed in an elliptical shape. Also, the plurality of inner ends 11a may be formed in an asymmetrical shape that does not have an axis of symmetry or a center of symmetry.
- a facing surface 11 b of the flange 11 facing the outer panel 3 is substantially parallel to the outer panel 3 .
- substantially parallel means that the lower surface 3a of the outer panel 3 and the opposing surface 11b form an angle of zero degrees or within several degrees in any of the width direction X, length direction Y, and height direction Z. It means that you are doing
- the inner end of each facing surface 11b is the inner end 11a.
- the outer end portion 11c of each facing surface 11b is located near the boundary between the flange 11 and the vertical wall 12.
- a joint portion 20 is arranged on the facing surface 11b. That is, the facing surface 11b is provided as a portion on which the joint portion 20 can be arranged.
- the width of the surface 11b of the flange 11 facing the outer panel 3 that can be coated with the joint portion 20 is preferably 2 mm or more in order to provide a sufficient amount of the joint portion 20 .
- each unit 9 the flange 11 of at least a part of the partial unit 10 is adhered to the joint portion 20 on the facing surface 11b, and is adhered to the outer panel 3 via the joint portion 20.
- a vertical wall 12 extends downward from the flange 11 .
- the vertical wall 12 is arranged between the flange 11 and the bottom 13 and connects the flange 11 and the bottom 13 .
- a vertical wall 12 extends from the flange 11 so as to be spaced apart from the outer panel 3 .
- the vertical wall 12 is provided over the entire longitudinal direction of the partial unit 10 in which the vertical wall 12 is provided.
- the vertical wall 12 is, for example, tapered to advance toward the central axis of the unit 9 (toward the inner end portion 11a) as it approaches the outer panel 3 side.
- a flange 11 is continuous with the upper end of the vertical wall 12 .
- a bottom portion 13 is continuous with the lower end of the vertical wall 12 .
- the bottom portion 13 is the portion of the unit 9 that is the farthest from the outer panel 3 and is separated from the flange 11 .
- the bottom portion 13 is formed in a curved shape that protrudes downward.
- the bottom portion 13 is provided over the entire longitudinal direction of the partial unit 10 on which the vertical wall 12 is provided.
- the tip 13c of the bottom portion 13 in one unit 9 is integrated with the tip 13c of the bottom portion 13 in the other adjacent unit 9 .
- the incomplete unit 8 includes one or more partial units 10 and thus includes a part corresponding to a part of the unit 9 .
- the partial unit 10 has a flange 11, a vertical wall 12 and a bottom 13, as described above.
- the facing surface 11b of the flange 11 in the incomplete unit 8 is a portion where the joint portion 20 can be arranged.
- a plurality of (12) imperfect units 8 are provided, and have imperfect units 81, 82, .
- the incomplete unit 81 is arranged on the left side of the front end of the overhang structure 6 and has two partial units 10 .
- the incomplete unit 82 is arranged near the front left end of the overhang structure 6 and has two partial units 10 .
- the incomplete unit 83 is arranged behind the incomplete unit 82 and has two partial units 10 .
- the incomplete unit 84 is arranged near the left end of the rear end of the overhanging structure 6 and has four partial units 10 .
- the incomplete unit 85 is arranged to the right of the incomplete unit 84 at the rear end of the overhanging structure 6 and has three partial units 10 .
- the incomplete units 86, 87, 88, 89, 810 are formed in a shape symmetrical in the width direction X with the incomplete units 81-85.
- the incomplete units 86-810 have a plurality of partial units 10.
- the incomplete unit 811 is arranged in the center of the width direction X at the front end of the projecting structure 6 and has three partial units 10 .
- the incomplete unit 812 is arranged in the center of the width direction X at the rear end of the overhanging structure 6 and has three partial units 10 .
- the joint portion 20 is provided to join the inner panel 2 and the outer panel 3 together.
- an adhesive is used in this embodiment.
- a mastic sealer (mastic adhesive) can be exemplified.
- a resin-based adhesive can be exemplified as this mastic sealer.
- the terms "sealer” and “adhesive” are used interchangeably herein.
- the adhesive may be cured at room temperature (for example, 20 degrees Celsius), or cured through a heating process or a drying process.
- the adhesive that joins the inner panel 2 and the outer panel 3 is the joint portion 20 .
- the joints 20 are arranged so as to secure the bonding strength, tension rigidity, and dent resistance between the inner panel 2 and the outer panel while reducing the weight of the automobile hood 1 .
- the joints 20 are provided on the flanges 11 of each unit 9 of the inner panel 2 and some of the incomplete units 8 (81, 84, 85, 86, 89, 810, 811, 812).
- the incomplete unit 8 and the unit 9 provided with the joints 20 are units with joints.
- the unit in which the joint portion 20 is provided on the flange 11 of the unit 9 that is annular when viewed in the plate thickness direction of the outer panel 3 is an annular unit with joint portion.
- the plurality of incomplete units 8 and units 9 include a plurality of units with joints.
- each joint 20 is formed in a point shape.
- the diameter of the joint portion 20 (the diameter of the outer panel 3 when viewed in the plate thickness direction) is about 5 mm to 25 mm.
- the aspect ratio of the joint 20 (the ratio of the maximum diameter to the minimum diameter of the joint 20 when viewed in the plate thickness direction) is, for example, 1.0 to 2.0.
- the joint 20 contacts both the inner panel 2 and the outer panel 3 .
- the joint portion 20 joins the facing surface 11 b of the flange 11 and the lower surface 3 a of the outer panel 3 . In this way, the flange 11 of the inner panel 2 projecting toward the outer panel 3 side is joined to the outer panel 3 via the joining portion 20, so that the inner panel 2 has the tension rigidity and dent resistance of the outer panel 3. You can increase your sexuality.
- a predetermined first form is provided.
- the first form means that in some units with joints (unit 9 and incomplete units 84 and 89 in this embodiment), joints 20 are arranged in an arrangement including a predetermined pattern P1, and the remaining In the units with joints (incomplete units 81, 85, 86, 810, 811, and 812 in this embodiment), the joints 20 are arranged in an arrangement including part of the predetermined pattern P1.
- the predetermined pattern P1 is a three-point pattern.
- the pattern P1 is a triangular pattern when viewed in the thickness direction of the outer panel 3, and is a pattern that is not straight.
- the pattern P1 in this embodiment is a pattern of equilateral triangles, it may be a pattern of isosceles triangles or a pattern of triangles having three sides with different lengths.
- Dot-shaped joints 20 are arranged at each vertex of the pattern P1.
- the predetermined pattern P1 is set to have the same size in each of the plurality of units with joints.
- the pattern P1 is set to have the same size in any unit with joints in which the joints 20 of the pattern P1 are arranged.
- the pattern P1 is oriented in the same direction when viewed in the plate thickness direction in any unit with joints in which the joints 20 of the pattern P1 are arranged.
- the pattern P1 when viewed in the plate thickness direction, has one joint portion 20 arranged on the front side in the length direction Y and another joint portion 20 arranged on the right rear side of the one joint portion 20.
- One joint 2 is arranged to the left rear of the one joint 20 .
- the relative positions (relative distances) of the three joints 20 in one pattern P1 are common to the plurality of patterns P1.
- the distance between the two farthest joints 20 is preferably 200 mm or less from the viewpoint of sufficiently securing the tension rigidity and dent resistance of the outer panel 3, and is 150 mm. It is more preferably 110 mm or less, more preferably 110 mm or less.
- the joints 20 are arranged in an arrangement including one pattern P1 in one unit 9 .
- a plurality of dot-like joints 20 are arranged in one unit 9 .
- the joints 20 are arranged in the pattern P1 in all the units 9 .
- 15 or more patterns P1 are provided.
- the directions of the patterns P1 in each unit 9 are aligned, and one vertex of the triangle is arranged toward the front side of the vehicle and two vertices are arranged toward the rear side of the vehicle.
- the orientation of the pattern P1 may differ among the plurality of units 9 .
- the distance L1 between the centers (central axes S1, S1) of the two units 9, 9 adjacent to each other when viewed in the plate thickness direction is 200 mm or less. It is preferable from the viewpoint of ensuring sufficient properties.
- some of the incomplete units 8 have the joints 20 arranged in the pattern P1.
- the orientation of the pattern P1 in the imperfect units 84, 89 is aligned with the orientation of the pattern P1 in the unit 9, but may be different.
- the joints 20 are arranged in an arrangement including part of the pattern P1 (the arrangement of the partial patterns P2), In this embodiment, the joints 20 are arranged in an arrangement of only a part of the pattern P1.
- a part of pattern P1 (partial pattern P2) in incomplete units 81, 86, and 811 on the front side of the vehicle is a pattern that connects two vertices of the triangular pattern.
- part of the pattern P1 (partial pattern P2) in the incomplete units 85, 810, 812 on the rear side of the vehicle is a pattern obtained by extracting one vertex of the triangular pattern.
- the orientation of the partial pattern P2 is aligned with the orientation of the pattern P1 in this embodiment, it may be different.
- the pattern P1 and the partial pattern P2 aligned in the width direction X are arranged at a constant pitch in the width direction X (linear direction), and further aligned in the length direction Y.
- the pattern P1 and the partial pattern P2 are arranged at a constant pitch in the length direction Y (linear direction).
- the pattern P1 and the partial pattern P2 are arranged at a constant pitch along the tilt direction C (C1, C2, linear direction) as the third direction.
- the pattern P1 and the partial pattern P2 arranged along the oblique direction C are obliquely arranged toward the front right side along the oblique direction C1 when viewed in the plate thickness direction.
- the pattern P1 and the partial pattern P2 arranged along the oblique direction C are obliquely arranged toward the right rear side along the oblique direction C2 when viewed in the plate thickness direction.
- the distance L1 between the centers (central axes S1, S1) of two adjacent annular units with joints is 200 mm or less.
- the tensional rigidity and dent resistance of the outer panel 3 can be sufficiently ensured.
- the joint portions 20 are arranged on the automobile hood 1 in a well-balanced manner. From this point as well, the tensional rigidity and dent resistance of the outer panel 3 can be sufficiently ensured.
- FIG. 8A is a schematic diagram of an example of the applicator 30.
- applicator 30 is a device that discharges adhesive 21 (sealer) that forms joint 20 .
- the applicator 30 includes a head 31 including a plurality of nozzles 33, a plurality of supply mechanisms 35 for supplying the adhesive 21 to each of the plurality of nozzles 33, and an inner panel 2 or an outer panel to which the head 31 is applied. 3 and a control unit 37 .
- the head 31 has a base 32 and a plurality of nozzles 33 supported by the base 32 and displaced integrally with the base 32 .
- the arrangement of the nozzles 33 is the same as the arrangement of the joints 20 in the pattern P1 in this embodiment. That is, in this embodiment, the nozzles 33 are arranged at each vertex of the triangle. In this embodiment, the relative positions of the multiple (three) nozzles 33 are fixed.
- Each nozzle 33 is connected to a corresponding supply mechanism 35 via a flexible tube 34, for example.
- One supply mechanism 35 is provided for each nozzle 33 .
- Each supply mechanism 35 is a mechanism for supplying the adhesive 21 to the corresponding nozzle 33 and includes a pump or the like for supplying the adhesive 21 from a tank (not shown) to the nozzle 33 .
- Each supply mechanism 35 is configured to supply the adhesive 21 independently of each other.
- the displacement mechanism 36 is formed using, for example, a robot arm, a linear actuator, or the like, and is configured to be able to move the head 31 with respect to the application target in at least two axial directions orthogonal to each other.
- the displacement mechanism 36 can rotate the head 31 around an axis parallel to the central axis of each nozzle 33 .
- the displacement mechanism 36 is configured so that the head 31 and the object to be coated can be moved relative to each other in directions of X1, Y1, and Z1 axes perpendicular to each other, and relatively movable around the X1, Y1, and Z1 axes. , more preferred.
- the displacement mechanism 36 is preferably rotatable around the Z1 axis, which is parallel to the central axis of each nozzle 33 .
- the control unit 37 uses, for example, a computer including a CPU (Central Processing Unit), a ROM (Read Only Memory) and a RAM (Random Access Memory), an FPGA (Field Programmable Gate Array), or a PLC (Programmable Logic Controller). formed by The controller 37 controls the ejection of the adhesive 21 from each nozzle 33 by controlling each supply mechanism 35 and displacement mechanism 36 .
- the controller 37 individually controls ON/OFF of the operation of each supply mechanism 35 .
- the plurality of nozzles 33 are configured to be individually switchable between on and off of the supply of the adhesive 21 .
- the control unit 37 controls the supply mechanism 35 and the displacement mechanism 36 according to a program stored in the storage unit of the control unit 37 or the like.
- each of the plurality of nozzles 33 is provided with the supply mechanism 35, so that the supply of the adhesive 21 from each nozzle 33 can be switched on/off. .
- One supply mechanism 35 and a plurality of nozzles 33 may be connected via tubes 34 as shown in FIG. 8B showing another example of the applicator 30 .
- adhesive 21 from supply mechanism 35 is supplied to each nozzle 33 via tube 34 .
- Each nozzle 33 is provided with a shutter 38 .
- the shutter 38 includes, for example, an electromagnetic valve or the like, and performs opening/closing operation of the corresponding nozzle 33 .
- the opening/closing operation of each shutter 38 is individually controlled by the control unit 37 .
- the adhesive 21 is discharged from the corresponding nozzles 33 when the shutters 38 are open, and the adhesive 21 is not discharged from the corresponding nozzles 33 when the shutters 38 are closed.
- the plurality of nozzles 33 are configured to be able to individually switch on/off the supply of the adhesive 21 .
- a configuration in which the nozzle 33 is displaced will be described, but this does not have to be the case.
- the position of the nozzle 33 may be fixed and the application target may be displaced with respect to the nozzle 33, or both the nozzle 33 and the application target may be displaceable.
- FIG. 9 is a schematic plan view for explaining how the applicator 30 applies the adhesive 21.
- FIG. Referring to FIGS. 8A and 9, in the coating process of joint portion 20, first, inner panel 2 or outer panel 3 to be coated is placed on a workbench (not shown). In this embodiment, the inner panel 2 is placed on a workbench as an object to be coated. Next, the control unit 37 reads and executes the above program, so that the application work of the adhesive 21 that becomes the joint portion 20 is performed.
- the adhesive 21 is applied to the application target (the inner panel 2 in this embodiment) using an applicator 30 including a plurality of nozzles 33 arranged in a predetermined pattern P1.
- the applicator 30 moves each nozzle 33 of the head 31 in the width direction X, the length direction Y and the height direction Z with respect to the inner panel 2 by the operation of the displacement mechanism 36 .
- each nozzle 33 is displaced to the location where the joint portion 20 is set on the inner panel 2 .
- Each nozzle 33 moves in the width direction X while reciprocating in the length direction Y with respect to the projecting structure 6 of the inner panel 2 as indicated by arrow A1, for example. It is configured to supply (apply) the adhesive 21 to the incomplete unit 8 (at a plurality of locations).
- applying the adhesive 21 while moving the nozzle 33 includes the action of temporarily stopping the movement of the nozzle 33 and applying the adhesive 21 when the nozzle 33 is in the adhesive applying operation.
- each nozzle 33 applies the adhesive 21 to the corresponding portion of the overhang structure 6 while moving in the length direction Y as a linear direction.
- two units 9, 9 adjacent to each other in the width direction X are arranged at pitches.
- moves in the width direction X moves in the width direction X.
- each nozzle 33 applies the adhesive 21 to the corresponding portion of the projecting structure 6 again while moving in the length direction Y as a linear direction.
- the applicator 30 applies the adhesive 21 from all the nozzles 33 when applying the adhesive 21 to the flanges 11 of the unit 9 and when applying the joint adhesive 21 to the flanges 11 of the incomplete units 84 and 89.
- the adhesive 21 that becomes the joint portion 20 is applied to the inner panel 2 in a predetermined pattern P1.
- the applicator 30 when applying the adhesive 21 to the incomplete units 81 , 85 , 86 , 810 , 811 , 812 , the applicator 30 supplies the adhesive 21 from some nozzles 33 to the inner panel 2 .
- An adhesive 21 that forms a joint portion 20 is applied to a portion (partial pattern P2) of the predetermined pattern P1. More specifically, when applying the adhesive 21 to the incomplete units 81, 86, 811, the applicator 30 supplies the adhesive 21 from the two nozzles 33, When applying the adhesive 21 to the , the adhesive 21 is supplied from one nozzle 33 .
- the inner panel 2 and the outer panel 3 are put together using a robot arm (not shown) or the like. As a result, part of the adhesive 21 comes into contact with both the inner panel 2 and the outer panel 3 to form a joint portion 20, and the joint portion 20 joins these panels 2 and 3 together. After that, for example, the outer peripheral edge of the outer panel 3 is hemmed, and after that, the automobile hood 1 is completed by going through a paint baking process and the like.
- the inner panel 2 is applied to the adhesive 21 that becomes the joint 20.
- the applicator 30 performs the same operation on the outer panel 3.
- the adhesive 21 may be applied.
- the applicator 30 may apply a part of the adhesive 21 to the inner panel 2 and apply the remaining part of the adhesive 21 to the outer panel 3 .
- some of the units with joints have joints in an arrangement including a single pattern P1.
- 20 can be formed, and in some of the remaining units with joints (incomplete units 81, 85, 86, 810, 811, 812), the joints 20 are arranged in an arrangement including the partial pattern P2 which is a part of the pattern P1.
- the sealer applicator 30 including a plurality of nozzles 33 arranged in a predetermined pattern P1, for example, spreads the adhesive 21 to be the bonding portion 20 in the shape of the pattern P1 or the shape of the partial pattern P2. It can be coated so that it is arranged in Therefore, the application work of the adhesive 21 for joining the outer panel 3 and the inner panel 2 can be completed more quickly in a fixed pattern, and the productivity of the automobile hood 1 can be increased.
- the plurality of units 9 includes a plurality of units 9 each including flanges 11 having substantially the same shape. As a result, tension rigidity and dent resistance can be made more uniform in each portion of the outer panel 3 .
- the pattern P1 is set to have the same size in each of the plurality of units with joints. This configuration eliminates the need to change the relative position of the nozzle 33 when applying the adhesive 21 from the nozzle 33 . Therefore, the application work of the adhesive 21 for joining the outer panel 3 and the inner panel 2 can be completed more quickly in a fixed pattern, and the productivity of the automobile hood 1 can be increased.
- the pattern P1 and the partial pattern P2 are arranged in the length direction Y. According to this configuration, by moving the nozzle 33 in the length direction Y, the movement of the nozzle 33 when applying the adhesive 21 of the pattern P1 and the partial pattern P2 can be performed more quickly, and the productivity of the automobile hood 1 can be improved. can be raised.
- the predetermined pattern P1 is a dotted pattern with three or more points. With this configuration, a single unit 9 can ensure sufficient tensional rigidity and dent resistance.
- 15 or more predetermined patterns P1 are provided in one automobile hood 1 .
- the joint portions 20 can be distributed over a wider range in the outer panel 3 .
- sufficient tension rigidity and dent resistance can be ensured throughout the automobile hood 1 .
- the adhesive 21 to be the joint 20 when the adhesive 21 to be the joint 20 is applied to the inner panel 2 to be applied, the adhesive 21 is supplied from all the nozzles 33 all at once to the inner panel 2.
- the adhesive 21 is applied to the inner panel 2 in a portion of the predetermined pattern P1 (partial pattern P2).
- the adhesive 21 can be applied in an arrangement including a single pattern P1 in some units with joints (incomplete units 84, 89, and each unit 9), and the remaining part of the joints can be applied.
- the adhesive 21 can be applied in an arrangement including part of the pattern P1. In this way, by using one applicator 30 having a plurality of nozzles 33, the operation of applying the adhesive 21 for joining the outer panel 3 and the inner panel 2 can be completed more quickly in a given pattern. The productivity of the automobile hood 1 can be increased.
- the adhesive 21 is applied to a plurality of locations on the inner panel 2 while reciprocating the plurality of nozzles 33 with respect to the inner panel 2 .
- the adhesive 21 is applied to a plurality of locations on the inner panel 2 while reciprocating the plurality of nozzles 33 with respect to the inner panel 2 .
- the outer panel 3 can be made thin (for example, a steel plate with a thickness of 0.4 to 0.6 mm and an aluminum plate with a thickness of 0.4 to 0.6 mm) in order to reduce the weight of the automobile body. 60 to 0.75 mm), it is possible to suppress the deterioration of tension rigidity and dent resistance. Furthermore, even when the distance between the joints 20 between the outer panel 3 and the inner panel 2 is reduced to increase the tension rigidity, and the number of joints 20 increases, the increase in the time required to construct the joints 20 can be reduced. .
- each nozzle 33 moves in the longitudinal direction Y, which is a linear direction, to apply the adhesive 21 across the inner panel 2 when viewed in the plate thickness direction.
- the adhesive 21 may be supplied (applied) to the corresponding incomplete units 8 (multiple locations).
- each nozzle 33 applies the adhesive 21 to the corresponding portion of the projecting structure 6 while moving in the width direction X as the linear direction.
- each nozzle 33 again applies the adhesive 21 to the corresponding portion of the projecting structure 6 while moving in the width direction X as the linear direction.
- each nozzle 33 reciprocates in one of the tilt directions C1 and C2 with respect to the projecting structure 6 of the inner panel 2, while moving in the tilt directions C1 and C2.
- the adhesive 21 may be supplied (applied) to each unit 9 and the corresponding incomplete unit 8 (at a plurality of locations).
- each nozzle 33 applies the adhesive 21 to the corresponding portion of the projecting structure 6 while moving in either one of the inclined directions C1 and C2 as linear directions.
- two adjacent units in the other tilt directions C1 and C2 are applied.
- each nozzle 33 again applies the adhesive 21 to the corresponding portion of the overhang structure 6 while moving in one of the inclination directions C1 and C2.
- the form in which the joint portion 20 is formed by the partial pattern P2 in addition to the pattern P1 has been described as an example.
- the arrangement of the partial patterns P2 may not be provided.
- a predetermined second form is provided.
- the second form refers to a form in which a plurality of joints 20 are arranged in an array including a predetermined pattern P1 in each of all joint-equipped units (all units 9 and incomplete units 84 and 89).
- three joints 20 are arranged in all joint-equipped units.
- the process of realizing the arrangement of the joints 20 shown in this modified example corresponds to omitting the process of coating the joints 20 with the partial pattern P2 in the first embodiment.
- the joints 20 are arranged in an arrangement including the single pattern P1.
- the sealer applicator 30 including a plurality of nozzles 33 arranged in a predetermined pattern P1 applies the adhesive 21 to the joints 20 so as to be arranged in the shape of the pattern P1.
- the work of forming the joints 20 for joining the outer panel 3 and the inner panel 2 can be completed more quickly in a fixed pattern, and the productivity of the automobile hood 1 can be increased.
- the arrangement pattern P1 of the joints 20 is a dotted pattern.
- the arrangement pattern of each joint 20 may be three or more linear patterns P1.
- the joints 20 are arranged on a virtual circle at predetermined intervals and formed in an arc shape.
- 3 When realizing the arrangement of the joints 20 shown in this modified example, in addition to relatively moving the nozzle 33 and the application target (inner panel 2) in the same manner as shown in the first embodiment, 3
- the adhesive 21 forming the joint 20 is simultaneously discharged from the three nozzles 33 to the joint-equipped unit (unit 9), the three nozzles 33 are rotated about the Z1 axis with respect to the application target (inner panel 2).
- the adhesive 21 is discharged from the nozzle 33 so that the adhesive 21 draws an arc.
- each adhesive 21 may be formed in a linear shape, or may be formed in another shape such as a wavy shape. According to this configuration, the joint portion 20 can be formed in a wider range.
- each of the outermost units 9, 9 in the width direction X is provided with a joint portion 201 in addition to the joint portion 20 of the pattern P1.
- joint portions 201 are provided in the incomplete units 811 and 812 at the center in the width direction X and at the front and rear ends.
- These joints 201 are formed before or after the coating process in which the joints 20 of the pattern P1 or the partial pattern P2 are coated by the plurality of nozzles 33, and the adhesion of the pattern P1 or the partial pattern P2 is performed. It is formed by applying the adhesive 21 to a portion out of the layout of the adhesive 21. - ⁇
- the joint portion 201 in addition to the joint portion 20, the joint strength balance between the inner panel 2 and the outer panel 3 can be further improved. As a result, the tension rigidity and dent resistance of the outer panel 3 can be further increased.
- a small number of joints 201 are additionally applied.
- the tension rigidity and dent resistance of the outer panel 3 can be increased by a simple and short-time process.
- FIG. 13 is a diagram for explaining the arrangement of joints 20 according to the second embodiment.
- the inner panel 2 and outer panel 3 of the second embodiment are the same as those of the first embodiment.
- the joints 20 are provided on the flanges 11 of each unit 9 of the inner panel 2 and part of the incomplete units 8 (84, 85, 89, 810, 811, 812).
- the incomplete unit 8 and the unit 9 provided with the joints 20 are units with joints.
- the plurality of incomplete units 8 and units 9 include a plurality of units with joints.
- the flange 11 of the inner panel 2 that protrudes toward the outer panel 3 is joined to the outer panel 3 via a joint 20, so that the outer panel 3 is Tension rigidity and dent resistance can be increased.
- the first form is provided.
- the first form means that in some units with joints (unit 9 and imperfect units 84 and 89 in the second embodiment), joints 20 are arranged in an arrangement including a predetermined pattern P1A, and the remaining In the units with joints (incomplete units 85, 810, 811, and 812 in this embodiment), the joints 20 are arranged in an array (partial pattern P2A) including part of the predetermined pattern P1A. refers to the form.
- the predetermined pattern P1A is a 6-point pattern.
- the pattern P1A is a hexagonal pattern when viewed in the thickness direction of the outer panel 3, and is a pattern that is not straight.
- the predetermined pattern P1A is set to have the same size in each of the plurality of units with joints.
- the pattern P1A is set to have the same size in any unit with joints in which the joints 20 of the pattern P1A are arranged.
- the pattern P1A is oriented in the same direction as viewed in the plate thickness direction in any unit with joints in which the joints 20 of the pattern P1A are arranged.
- the pattern P1A is arranged such that two joint portions 20 are aligned straight in the length direction Y at each of three locations in the width direction X in the pattern P1A as viewed in the plate thickness direction. When viewed in the plate thickness direction, the relative positions (relative distances) of the six joints 20 within one pattern P1A are common to the plurality of patterns P1A.
- the pattern P1A of the second embodiment is a regular hexagonal pattern, it may be a hexagonal pattern in which at least one side length is different from the other side lengths. Dot-shaped joints 20 are arranged at each vertex of the pattern P1A.
- the vertices of the hexagons of the unit 9 and the vertices of the hexagonal pattern P1A may or may not be aligned.
- the distance between the two farthest joints 20 is preferably 200 mm or less from the viewpoint of sufficiently securing the tension rigidity and dent resistance of the outer panel 3, and is 150 mm. It is more preferably 110 mm or less, more preferably 110 mm or less.
- the joints 20 are arranged in an arrangement including one pattern P1A in one unit 9. As a result, a plurality of dot-like joints 20 are arranged in one unit 9 . In this embodiment, in all the units 9, the joints 20 are arranged in the pattern P1A. Thus, 15 or more patterns P1A are provided in the second embodiment. Furthermore, in the second embodiment, the directions of the patterns P1A in each unit 9 are aligned. Note that the orientation of the pattern P1A may be different between the plurality of units 9 . Also, there may be a unit 9 in which the joint portion 20 is not provided.
- some of the incomplete units 84 and 89 have the joints 20 arranged in the pattern P1A.
- the orientation of the pattern P1A in the incomplete units 84, 89 is aligned with the orientation of the pattern P1A in the unit 9A, but may be different.
- the joints 20 are arranged in an arrangement that includes part of the pattern P1A (the arrangement of the partial patterns P2A). The joints 20 are arranged in an arrangement of only a part of the .
- Part of the pattern P1A in the incomplete units 85, 810, 811, 812 is a pattern that connects three vertices that are continuous in the circumferential direction of the hexagon among the hexagonal patterns, and this pattern is the partial pattern P2A. .
- the pattern P1A and the partial pattern P2A aligned in the width direction X are arranged at a constant pitch in the width direction X (linear direction).
- the pattern P1A and the partial pattern P2A are arranged at a constant pitch in the length direction Y (linear direction).
- the pattern P1A and the partial pattern P2A are arranged at a constant pitch along the tilt direction C (C1, C2, linear direction) as the third direction.
- the pattern P1A and the partial pattern P2A arranged along the oblique direction C are obliquely arranged toward the front right side along the oblique direction C1 when viewed in the plate thickness direction.
- the pattern P1A and the partial pattern P2A are obliquely arranged toward the right rear side along the inclination direction C2 when viewed in the plate thickness direction.
- the above is the arrangement of the joints 20 in the second embodiment.
- the applicator 30 for applying the adhesive 21 that forms the joint 20 of the second embodiment is the same as the applicator 30 described in the first embodiment. That is, by using the applicator 30 having three nozzles 33 arranged at the three vertices of the triangle, the joints 20 arranged in an array including the pattern P1A and an array including the partial pattern P2A can be realized.
- FIG. 14 is a schematic plan view for explaining how the applicator 30 applies the adhesive 21 in the second embodiment.
- the inner panel 2 or the outer panel 3 to be applied is placed on a workbench (not shown).
- the inner panel 2 is placed on a workbench as an object to be coated.
- the application work of the adhesive 21 is performed by the controller 37 reading and executing the program.
- a coater 30 including a plurality of nozzles 33 arranged including a part of the predetermined pattern P1A is used, that is, the coater 30 including a plurality of nozzles 33 arranged including the partial pattern P2A is used.
- the applicator 30 moves each nozzle 33 of the head 31 in the width direction X, the length direction Y and the height direction Z with respect to the inner panel 2 by operating the displacement mechanism 36 .
- each nozzle 33 is displaced to the location where the joint portion 20 is set on the inner panel 2 .
- Each nozzle 33 moves in the width direction X while reciprocating in the length direction Y with respect to the projecting structure 6 of the inner panel 2 as indicated by arrow A1, for example. It is configured to supply the adhesive 21 to the incomplete unit 8 .
- the applicator 30 batches the adhesive 21 from all the nozzles 33. Then, the adhesive 21 is applied to the inner panel 2 in a part of the pattern P1A. Next, the directions of the three nozzles 33 are changed by rotating the head 31 by 180° around the Z1 axis. Next, by supplying the adhesive 21 from all the nozzles 33 all at once, the adhesive 21 is applied to the inner panel 2 in the remaining pattern of the pattern P1A. In this way, by arranging the adhesive 21 in two patterns (patterns corresponding to two patterns P1 in the first embodiment) with different directions of 180°, the bonding portions 20 arranged in the pattern P1A and An adhesive 21 is provided.
- the applicator 30 supplies the adhesive 21 from one nozzle 33 and then moves the nozzle 33 slightly in the longitudinal direction Y. , and the adhesive 21 is supplied from the remaining two nozzles 33 to apply the adhesive 21 to the inner panel 2 in a part of the predetermined pattern P1A (partial pattern P2A).
- the adhesive 21 is applied to the inner panel 2 with the above configuration, the inner panel 2 and the outer panel 3 are put together using a robot arm (not shown) or the like. As a result, a portion of the adhesive 21 comes into contact with both the inner panel 2 and the outer panel 3 to form the joint portion 20, thereby joining the panels 2 and 3 together.
- the automobile hood 1 is assembled by, for example, hemming the outer peripheral edge of the outer panel 3 .
- the joints 20 can be formed in an arrangement including a single pattern P1A in some units with joints (incomplete units 84, 89, and each unit 9). In the remaining part of the units with joints (incomplete units 85, 810, 811, 812), the joints 20 can be formed in an arrangement including the partial pattern P2A as part of the pattern P1A.
- the sealer applicator 30 including a plurality of nozzles 33 arranged in a partial pattern of the pattern P1A can be set so that the joint portions 20 are arranged in the shapes of the pattern P1A and the partial pattern P2A. Therefore, the work of forming the joints 20 for joining the outer panel 3 and the inner panel 2 can be completed more quickly in a fixed pattern, and the productivity of the automobile hood 1 can be increased.
- six joints 20 are provided in one unit 9, so that the rigidity for supporting the outer panel 3 can be increased, and the tension rigidity of the outer panel 3 can be increased.
- the adhesive 21 when applying the adhesive 21 to be the joints 20 to the inner panel 2 to be applied, by repeating the operation of collectively supplying the joints 20 from all the nozzles 33, The adhesive 21 is applied to the inner panel 2 in an arrangement of a predetermined pattern P1A, and the adhesive 21 is supplied from some nozzles 33 to join the inner panel 2 with a part of the predetermined pattern P1A (partial pattern P2A).
- the joints 20 can be formed in an arrangement including a single pattern P1A in some units with joints (incomplete units 84, 89, and each unit 9), and the remaining part of the joints In the unit with parts (incomplete units 85, 810, 811, 812), the joining part 20 can be formed by an arrangement (partial pattern P2A) including part of the pattern P1A.
- the operation of forming the joints 20 for joining the outer panel 3 and the inner panel 2 can be completed more quickly in a given pattern.
- the productivity of the automobile hood 1 can be increased.
- FIG. 15 is a diagram for explaining the first modification of the second embodiment
- the arrangement of the partial patterns P2A may not be provided.
- a predetermined second form is provided.
- the second form refers to a form in which a plurality of joints 20 are arranged in an array including a predetermined pattern P1A in each of all joint-equipped units (all units 9 and incomplete units 84 and 89).
- six joints 20 are arranged in all the units with joints.
- the process of realizing the arrangement of the joints 20 shown in this modification corresponds to omitting the process of applying the adhesive 21 that forms the joints 20 in the partial pattern P2A in the second embodiment.
- the joints 20 are arranged in an arrangement including a single pattern P1A in each of all the units with joints (units 9). can be formed.
- the work of forming the joints 20 for joining the outer panel 3 and the inner panel 2 can be completed more quickly in a fixed pattern, and the productivity of the automobile hood 1 can be increased.
- the joints 20 are arranged on a virtual circle at predetermined intervals and formed in an arc shape.
- 3 When realizing the arrangement of the joints 20 shown in this modified example, in addition to relatively moving the nozzle 33 and the application target (inner panel 2) in the same manner as shown in the second embodiment, 3
- the adhesive 21 is simultaneously discharged from the three nozzles 33 to the unit with joints (unit 9)
- the three nozzles 33 are rotated about the Z1 axis with respect to the application target (inner panel 2).
- the adhesive 21 is discharged from the nozzle 33 so that the adhesive 21 draws an arc.
- each adhesive 21 may be formed in a linear shape, or may be formed in another shape such as a wavy shape.
- the bonding portion 20 is formed by the applicator 30 having the three nozzles 33 arranged in the triangular pattern P1 described in the first embodiment. It doesn't have to be this way.
- the joint 20 may be formed using an applicator including six nozzles 33 arranged in the same pattern as the pattern P1A.
- the adhesive 21 that forms the joints 20 is discharged from the six nozzles 33 at the same time.
- the nozzle 33 does not have to be rotated around the Z1 axis.
- the adhesive 21 that forms the joints 20 is discharged from the three nozzles 33 at the same time.
- the adhesive 21 arranged in the pattern P1A can be applied to the portion where the joint portion 20 of the pattern P1A is formed by one adhesive ejection operation from each of the six nozzles 33 .
- the adhesive 21 arranged in the partial pattern P2A can be applied to the portion where the partial pattern P2A is formed by one adhesive ejection operation from each of the three nozzles 33 corresponding to the partial pattern P2A.
- the relative positions of the plurality (six) of nozzles 33 are fixed.
- each nozzle 33 reciprocates in the width direction X with respect to the projecting structure 6 of the inner panel 2 as shown by an arrow A2 in FIG.
- the adhesive 21 may be supplied (applied) to the corresponding incomplete units 8 (multiple locations). In this case, each nozzle 33 applies the adhesive 21 to the corresponding portion of the projecting structure 6 while moving in the width direction X as the linear direction.
- each nozzle 33 again applies the adhesive 21 to the corresponding portion of the projecting structure 6 while moving in the width direction X as the linear direction.
- each nozzle 33 reciprocates in one of the tilt directions C1 and C2 with respect to the projecting structure 6 of the inner panel 2, while , the adhesive 21 may be supplied (applied) to each unit 9 and the corresponding incomplete unit 8 (at a plurality of locations).
- each nozzle 33 applies the adhesive 21 to the corresponding portion of the projecting structure 6 while moving in either one of the inclined directions C1 and C2 as linear directions.
- two adjacent units in the other tilt directions C1 and C2 are applied. It moves in the other of the tilt directions C1 and C2 by the arrangement pitch between the units 9 and 9 .
- each nozzle 33 again applies the adhesive 21 to the corresponding portion of the overhang structure 6 while moving in one of the inclination directions C1 and C2.
- the form in which all the joints 20 belong to the pattern P1A or the partial pattern P2A has been described as an example. However, this need not be the case.
- a joint portion 20 that does not belong to either the pattern P1A or the partial pattern P2A may be provided.
- four joints 20 (201), for example, are added to the arrangement of the joints 20 shown in the second embodiment.
- the joint-attached unit has an additional joint portion having the joint portion 20 (201) installed at a location deviated from the layout of the joint portion 20 in the pattern P1A. unit is provided.
- each of the outermost units 9, 9 in the width direction X is provided with a joint portion 201 in addition to the joint portion 20 of the pattern P1A.
- joint portions 201 are provided in the incomplete units 811 and 812 at the center in the width direction X and at the front and rear ends. These joints 201 are formed before or after the coating process in which the joints 20 of the pattern P1A or the partial pattern P2A are coated by the plurality of nozzles 33. It is formed by applying the adhesive 21 to a portion out of the layout of the adhesive 21. - ⁇
- the joint portion 201 in addition to the joint portion 20, the joint strength balance between the inner panel 2 and the outer panel 3 can be further improved. As a result, the tension rigidity and dent resistance of the outer panel 3 can be further increased.
- a small number of joints 201 are additionally applied.
- the tension rigidity and dent resistance of the outer panel 3 can be increased by a simple and short-time process.
- FIG. 18 is a diagram for explaining the arrangement of joints 20 according to the third embodiment.
- the inner panel 2 and the outer panel 3 of the third embodiment are the same as those of the first embodiment.
- the joints 20 are the flanges 11 of the units 9 of the inner panel 2 and some of the incomplete units 8 (81, 84, 85, 86, 89, 810, 811, 812). provided in The incomplete unit 8 and the unit 9 provided with the joints 20 are units with joints.
- the plurality of incomplete units 8 and the units 9 include a plurality of units with joints.
- the flange 11 of the inner panel 2 that protrudes toward the outer panel 3 is joined to the outer panel 3 via a joint 20, so that the outer panel 3 is Tension rigidity and dent resistance can be increased.
- the first form is provided.
- the first form means that in some units with joints (unit 9 and incomplete units 84 and 89), joints 20 are arranged in an array including a predetermined pattern P1B, and the remaining units with joints ( Incomplete units 81, 85, 86, 810, 811, 812) refer to a form in which the joints 20 are arranged in an arrangement (an arrangement of partial patterns P2B) including part of the predetermined pattern P1B.
- the predetermined pattern P1B is a dot-like pattern of four points.
- the pattern P1B is a rectangular pattern when viewed in the plate thickness direction of the outer panel 3, and is a pattern that is not straight.
- the predetermined pattern P1B is set to have the same size in each of the plurality of units with joints.
- the pattern P1B is set to have the same size in any unit with joints in which the joints 20 of the pattern P1B are arranged.
- the pattern P1B is oriented in the same direction as viewed in the plate thickness direction in any unit with joints in which the joints 20 of the pattern P1B are arranged.
- the joint portions 20 are arranged at each of the four locations of the front right, front left, rear right, and rear left when viewed in the plate thickness direction. When viewed in the plate thickness direction, the relative positions (relative distances) of the four joints 20 in one pattern P1B are common to the plurality of patterns P1B.
- the pattern P1B of the third embodiment is a square pattern, it may be a square pattern in which at least one side length is different from the other side lengths. Dot-shaped joints 20 are arranged at each vertex of the pattern P1B. In the third embodiment, regarding the joints 20 in one pattern P1B, the distance between the two farthest joints 20 is 200 mm or less to sufficiently ensure the tensional rigidity and dent resistance of the outer panel 3. 150 mm or less, and more preferably 110 mm or less.
- the joints 20 are arranged in an arrangement including one pattern P1B in one unit 9. As a result, a plurality of dot-like joints 20 are arranged in one unit 9 . In the third embodiment, the joints 20 are arranged in the pattern P1B in all the units 9 . Thus, 15 or more patterns P1B are provided in the third embodiment. Furthermore, in the third embodiment, the directions of the patterns P1B in each unit 9 are aligned. Note that the orientation of the pattern P1B may be different between the plurality of units 9 . Also, there may be a unit 9 in which the joint portion 20 is not provided.
- some of the incomplete units 84 and 89 have the joints 20 arranged in the pattern P1B.
- the orientation of pattern P1B in incomplete units 84 and 89 is aligned with the orientation of pattern P1B in unit 9B, but may be different.
- the joint portions 20 are arranged in a partial pattern P2B as an arrangement including a part of the pattern P1B.
- the joints 20 are arranged by arranging only a part of the pattern P1B.
- a partial pattern P2B in the incomplete units 81, 85, 86, 810, 811, and 812 is a pattern that connects two vertices of the rectangular pattern.
- the joints 20 are arranged in a lattice. More specifically, the joints 20 are arranged on an imaginary straight line along the width direction X and on an imaginary straight line along the length direction Y. As shown in FIG.
- the pattern P1B and the partial pattern P2B aligned in the width direction X are arranged at a constant pitch in the width direction X (linear direction).
- the pattern P1B and the partial pattern P2B are arranged at a constant pitch in the length direction Y (linear direction).
- the pattern P1B and the partial pattern P2B are arranged at a constant pitch along the tilt direction C (C1, C2, linear direction) as the third direction.
- the pattern P1B and the partial pattern P2B arranged along the oblique direction C are obliquely arranged toward the front right side along the oblique direction C1 when viewed in the plate thickness direction.
- the pattern P1B and the partial pattern P2B are arranged obliquely toward the right rear side along the inclination direction C2 when viewed in the plate thickness direction.
- a coating machine 30B is used as a coating machine for forming the joint portion 20 of the third embodiment.
- the applicator 30B has the configuration of the applicator 30 described in the first embodiment, except that four nozzles 33 are arranged in the head 31 and a supply mechanism 35 is independently connected to each nozzle 33. Same as configuration. That is, by using the applicator 30B having four nozzles 33 arranged at the four corners of the rectangle, the joints 20 arranged in an array including the pattern P1B and an array including the partial pattern P2B can be realized.
- FIG. 19 is a schematic plan view for explaining how the applicator 30B applies the adhesive 21 in the third embodiment.
- inner panel 2 or outer panel 3 to be coated is placed on a work table (not shown).
- a state in which the inner panel 2 is placed on a workbench as an object to be coated is shown.
- the control unit 37 reads and executes the above program, so that the application work of the adhesive 21 that becomes the joint portion 20 is performed.
- the adhesive 21 is formed on the application target (the inner panel 2 in the third embodiment) using an applicator 30B including a plurality of nozzles 33 arranged including a predetermined pattern P1B.
- the applicator 30B moves each nozzle 33 of the head 31 in the width direction X, the length direction Y and the height direction Z with respect to the inner panel 2 by operating the displacement mechanism 36 .
- each nozzle 33 is displaced to the location where the joint portion 20 is set on the inner panel 2 .
- Each nozzle 33 moves in the width direction X while reciprocating in the length direction Y with respect to the projecting structure 6 of the inner panel 2 as indicated by arrow A1, for example. It is configured to form a joint 20 in the incomplete unit 8 .
- the applicator 30B batches the adhesive 21 from all the nozzles 33.
- the joint portion 20 is formed.
- the applicator 30 supplies the adhesive 21 from the two nozzles 33 to the inner panel 2 in a predetermined manner when applying the bonding portion 20 to the incomplete units 81 , 85 , 86 , 810 , 811 , 812 .
- the adhesive 21 is applied in a part of the pattern P1B of the pattern P1B, that is, in the partial pattern P2B.
- the adhesive 21 is applied to the inner panel 2 with the above configuration, the inner panel 2 and the outer panel 3 are put together using a robot arm (not shown) or the like. As a result, at least part of the adhesive 21 comes into contact with both the inner panel 2 and the outer panel 3 to form the joint portion 20, thereby joining the panels 2 and 3 together.
- the automobile hood 1 is assembled by, for example, hemming the outer peripheral edge of the outer panel 3 .
- the joints 20 can be formed by arranging a single pattern P1B in some units with joints (incomplete units 84, 89 and unit 9), and the remaining one In the joint-attached units (incomplete units 81, 85, 86, 810, 811, 812), the joints 20 can be formed by an arrangement (partial pattern P2B) including part of the pattern P1B.
- the sealer applicator 30B including a plurality of nozzles 33 arranged in a predetermined pattern P1B arranges the bonding portions 20 in the shape of the pattern P1B and the shape of a part of the pattern P1B (the shape of the partial pattern P2B).
- the sealer applicator 30B including a plurality of nozzles 33 arranged in a predetermined pattern P1B arranges the bonding portions 20 in the shape of the pattern P1B and the shape of a part of the pattern P1B (the shape of the partial pattern P2B).
- the operation of supplying the adhesive 21 from all the nozzles 33 all at once is repeated to apply the adhesive 21 to the inner panel 2 in a predetermined amount.
- the bonding portions 20 are formed on the inner panel 2 in the arrangement of a part of the predetermined pattern P1B (partial pattern P2B). Form.
- the joint 20 can be formed with a single pattern P1B in some of the units with joints (incomplete units 84, 89 and unit 9), and the remaining part of the units with joints (incomplete In the units 81, 85, 86, 810, 811, 812), the joint 20 can be formed in an arrangement including a part of the pattern P1B.
- the joint 20 can be formed in an arrangement including a part of the pattern P1B.
- each nozzle 33 moves in the width direction X while reciprocating in the length direction Y with respect to the inner panel 2 .
- each nozzle 33 may move a length Y while reciprocating in the width direction X with respect to the inner panel 2, as indicated by an arrow A2.
- the adhesive 21 may be applied using two of the four nozzles 33 arranged in the longitudinal direction Y.
- the two nozzles 33 apply the adhesive 21 to each unit 9 and the incomplete units 84 and 89 by performing two joint discharge operations.
- the pitch L5 between the two closest joints 20 between the units 9, 9 adjacent in the width direction X, and the distance between the unit 9 and the incomplete unit 8 adjacent in the width direction X are both It is shorter than the pitch L8 between the joints 20 adjacent in the width direction X within one unit 9 .
- the joints 20 can be arranged at a shorter pitch, and the tensional rigidity and dent resistance of the inner panel 2 can be increased.
- FIG. 20 is a diagram for explaining the first modification of the third embodiment
- the arrangement of the partial patterns P2B may not be provided.
- a predetermined second form is provided.
- the second form refers to a form in which a plurality of joints 20 are arranged in an array including a predetermined pattern P1B in each of all the units with joints (all the units 9 and the incomplete units 84 and 89).
- four joints 20 are arranged in all the units with joints.
- the process of realizing the arrangement of the joints 20 shown in this modified example corresponds to the process of applying the adhesive 21 to the partial pattern P2B in the third embodiment, which is omitted.
- each adhesive 21 may be formed in a linear shape, or may be formed in another shape such as a wavy shape.
- the nozzle 33 moves in the longitudinal direction Y or the width direction X as a linear direction when viewed in the plate thickness direction, thereby traversing the inner panel 2 and dispersing the adhesive 21 .
- the form of application has been described as an example. However, this need not be the case.
- each nozzle 33 reciprocates in one of the tilt directions C1 and C2 with respect to the projecting structure 6 of the inner panel 2 as indicated by an arrow A3 in FIG.
- the adhesive 21 may be supplied (applied) to each unit 9 and the corresponding incomplete unit 8 (at a plurality of locations) by moving to the other.
- each nozzle 33 applies the adhesive 21 to the corresponding portion of the projecting structure 6 while moving in either one of the inclined directions C1 and C2 as linear directions. Then, after applying the adhesive 21 to a row of units 9 and incomplete units 8 (joint-equipped units) arranged in one of the tilt directions C1 and C2, the units are arranged adjacent to one of the tilt directions C1 and C2. It moves in the other of the tilt directions C1 and C2 by the arrangement pitch between the two units 9 and 9 . After that, each nozzle 33 again applies the adhesive 21 to the corresponding portion of the overhang structure 6 while moving in one of the inclination directions C1 and C2.
- the form in which all the joints 20 belong to the pattern P1B or the partial pattern P2B has been described as an example. However, this need not be the case.
- a joint portion 20 that does not belong to either the pattern P1B or the partial pattern P2B may be provided.
- four joints 20 (201), for example, are added to the arrangement of the joints 20 shown in the third embodiment.
- the joint-attached unit has an additional joint portion having the joint portion 20 (201) installed at a location out of the layout of the joint portion 20 in the pattern P1B. unit is provided.
- each of the outermost units 9, 9 in the width direction X is provided with a joint portion 201 in addition to the joint portion 20 of the pattern P1B.
- joint portions 201 are provided in the incomplete units 811 and 812 at the center in the width direction X and at the front and rear ends.
- These joints 201 are formed before or after the coating process in which the joints 20 of the pattern P1B or the partial pattern P2B are coated by the plurality of nozzles 33, and the adhesion of the pattern P1B or the partial pattern P2B is performed. It is formed by applying the adhesive 21 to a portion out of the layout of the adhesive 21. - ⁇
- the joint portion 201 in addition to the joint portion 20, the joint strength balance between the inner panel 2 and the outer panel 3 can be further improved. As a result, the tension rigidity and dent resistance of the outer panel 3 can be further increased.
- a small number of joints 201 are additionally applied.
- the tension rigidity and dent resistance of the outer panel 3 can be increased by a simple and short-time process.
- the form in which the inner is the inner panel 2 has been described as an example. However, this need not be the case.
- a stiffening member made of a steel plate, an aluminum plate, or a synthetic resin may be used as the inner.
- examples of the inner include a back door inner panel and a stiffening member.
- examples of the inner member include a roof reinforcement and a stiffening member.
- the adhesive 21 that forms the joint 201 is applied by nozzles while the adhesive 21 that forms the joint 20 other than the joint 201 is being applied. 33 may be supplied.
- FIG. 23(A) is a schematic plan view of an inner panel 2D showing main parts of the first modification of the unit.
- FIG. 23(B) is a plan view showing the main part of FIG. 23(A).
- FIG. 23(C) is a cross-sectional view along line XXIIIC-XXIIIC of FIG. 23(B).
- each unit 9C is provided with a cylindrical vertical wall 12C and an annular annular flange 15C.
- the arrangement of each unit 9C is the same as the arrangement of the units 9 in each of the above embodiments and modifications.
- the arrangement of the joints 20 on the annular flange 15C of each unit 9C is the same as described in each embodiment and modification, and as shown in FIG.
- the joint portion 20 may be arranged, four joint portions 20 may be arranged in one unit 9C as shown in FIG.
- the vertical wall 12C and the annular flange 15C may have an annular shape such as an elliptical annular shape in which the radius of curvature is not constant in plan view.
- the tension rigidity and dent resistance of the outer panel 3 when each unit 9C is circular in the plate thickness direction are the tension rigidity and dent resistance of the outer panel 3 when each unit 9 is hexagonal in the plate thickness direction. It can be said that it is substantially the same as the dent resistance.
- FIG. 25(A) is a schematic plan view showing the main part of the second modification of the unit.
- FIG. 25B is a cross-sectional view along line XXVB-XXVB of FIG. 25A.
- each unit 9D is provided with a rectangular vertical wall 12D and a rectangular annular flange 15D.
- the arrangement of each unit 9D is the same as the arrangement of the units 9 in each of the above embodiments and modifications.
- the arrangement of the joints 20 on the annular flange 15D of each unit 9D is the same as described in each embodiment and modification, and as shown in FIG.
- the joint 20 may be arranged, four joints 20 may be arranged in one unit 9D like the unit 9, or six joints 20 may be arranged in one unit 9C like the unit 9. may be placed.
- the vertical wall 12D and the annular flange 15D may be polygons such as equilateral triangles, regular pentagons, and regular n-sided polygons (where n is an integer equal to or greater than 7) in plan view.
- the tension rigidity and dent resistance of the outer panel 3 when each unit 9D is rectangular in the thickness direction are the same as the tension rigidity and dent resistance of the outer panel 3 when each unit 9 is hexagonal in the thickness direction. It can be said that it is substantially the same as the dent resistance.
- the units 9D may be arranged so that the unit boundaries 14 are rectangular instead of hexagonal. That is, the units 9D may be arranged in a matrix.
- the applicator 30 of the first embodiment, the applicator 30B of the third embodiment, and the inner panel 2 were prepared.
- each unit 9 (9, 9C, 9D) is as follows.
- In-Range Examples 1-6 and Out-Range Examples 1-6 Hexagonal unit 9 in the first embodiment shown in FIG.
- In-range examples 7-9 and out-of-range example 7 Round unit 9C in the first modification of the unit shown in FIGS. 23(A) to 23(C)
- In-range examples 10 and 11 and out-of-range example 8 unit 9D in the second modification of the unit shown in FIGS. 25(A) and 25(B)
- the arrangement pattern of the joints 20 is as follows. In-range examples 1 to 3, 7, 10 and out-of-range examples 1 to 6, 7, 8: arrangement pattern (three-point pattern) of the first embodiment shown in FIG. In-range examples 4 and 8 and out-of-range example 11: The arrangement pattern (4-point pattern) of the third embodiment shown in FIG. In-range examples 5, 6, and 9: The arrangement pattern (6-point pattern) of the second embodiment shown in FIG.
- the distance L1 between the centers (central axes S1, S1) of the two units 9, 9 adjacent to each other when viewed in the plate thickness direction is shown in Table 1. Street. Further, in Examples 1 to 11 within the range and Examples 1 to 8 outside the range, the outer panel 3 and the inner panel 2 are steel plates, and the yield strength and thickness of the outer panel 3 and the thickness of the inner panel 2 are shown in Table 1. as shown in
- Tensile stiffness of in-range examples 1-11 and out-of-range examples 1-8 were measured.
- the tension stiffness was measured as follows. Specifically, a load of 90 N was applied to the surface of the outer panel 2 with a spherical iron indenter with a diameter of 100 mm. In Examples 1 to 11 within the range and Examples 1 to 8 outside the range, the point where the load was applied was the point located on the central axis S1 of the flange 11 of the unit 9 on the upper surface 3b of the outer panel 3 (see FIG. 6). and When the maximum value of the deflection of the outer panel 3 when the load was applied was 7 mm or less, it was rated as ⁇ (very good), and when it exceeded 7 mm, it was rated as ⁇ (good).
- the dent resistance of Examples 1 to 11 within the range and Examples 1 to 8 outside the range was measured.
- the dent resistance was measured as follows. Specifically, the load acting on the outer panel from the spherical hard rubber indenter with a diameter of 50 mm was measured when a dent with a depth of 0.15 mm was generated on the surface of the outer panel 2 .
- the load was applied to a portion of the upper surface 3b of the outer panel 3 located on the central axis S1 of the flange 11 of the unit 9 (Fig. 6 reference). When the load was 200N or more, it was evaluated as ⁇ (very good), and when it was less than 200N, it was evaluated as ⁇ (good).
- the weight ratios of Examples 1 to 11 within the range and Examples 1 to 8 outside the range were measured.
- the weight ratio is based on the weight of range exception 1, and the case where the weight reduction rate from the standard exceeds 20% is ⁇ (excellent), and the case where the weight reduction rate from the standard is 10% to 20%. ⁇ (very good), and ⁇ (good) when the weight reduction rate from the standard is less than 10%.
- the comprehensive evaluation was given as ⁇ when tension stiffness, dent resistance and weight ratio were all ⁇ or ⁇ , and as ⁇ when at least one of tension rigidity, dent resistance and weight ratio was ⁇ .
- example 1 outside the range, although the thickness of the outer panel 3 was extremely large, although the tension rigidity and dent resistance were secured, the weight was heavy and the weight ratio was evaluated as ⁇ , so it was overall evaluated as ⁇ . .
- example 2 outside the range, the center distance between the units exceeded 200 mm, the support span of the outer panel 3 by the inner panel 2 was long, and the tension rigidity was evaluated as ⁇ , so the overall evaluation was ⁇ .
- the yield strength was less than 400 MPa, and the dent resistance was evaluated as ⁇ , so the overall evaluation was ⁇ .
- example 5 outside the range, the thickness of the outer panel 3 was 0.7 mm, which was heavy, and the weight ratio was evaluated as ⁇ , so the overall evaluation was ⁇ .
- the plate thickness of the inner panel 2 is 0.55 mm, which is heavy, and the weight ratio was evaluated as ⁇ , so the overall evaluation was ⁇ .
- the center distance between the units exceeded 200 mm, the support span of the outer panel 3 by the inner panel 2 was long, and the tension rigidity was evaluated as ⁇ , so the overall evaluation was ⁇ . rice field.
- Examples 1 to 11 within the range were evaluated as ⁇ or ⁇ in all of the tension rigidity, dent resistance, and weight ratio, so they were evaluated as ⁇ overall.
- Examples 1 to 11 in which the inner panel 2 is a steel plate and has a plate thickness of 0.4 mm to 0.55 mm are cases in which the inner panel 2 is an aluminum plate and has a plate thickness of 0.65 mm to 0.80 mm. yields the same results as That is, even when the inner panel 2 and the outer panel 3 are made of aluminum plates, by setting the plate thickness equivalent to the case where the inner panel 2 and the outer panel 3 are steel plates from the viewpoint of tension rigidity and dent resistance, it is possible to achieve 1-11 and range exceptions 1-8 would clearly yield the same results.
- the present invention can be widely applied as an automobile panel and its manufacturing method.
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Abstract
Description
インナーと、
前記インナーと前記アウターとを接合している接合部と、
を備え、
前記インナーは、前記アウターの板厚方向視で所定の第1方向に複数並ぶとともに前記第1方向と交差する第2方向に複数並ぶユニットを含み、
各前記ユニットは、前記アウターに隣接配置されるフランジと、前記アウターから離隔するように前記フランジから延びる縦壁と、この縦壁に連続し前記フランジとは離隔している底部と、を含み、
前記複数のユニットは、前記接合部が前記フランジに設けられた接合部付ユニットを複数含み、
所定の第1形態または第2形態が設けられており、
前記第1形態では、一部の前記接合部付ユニットでは前記接合部が前記所定のパターンを含む配列で配置されているとともに、残りの前記接合部付ユニットでは前記接合部が前記所定のパターンの一部を含む配列で配置されており、
前記第2形態では、全ての前記接合部付ユニットのそれぞれにおいて、複数の前記接合部が前記所定のパターンを含む配列で配置されている、自動車パネル。
前記第2形態では、前記所定のパターンが、前記直線方向に並んで配置されている、前記(1)~前記(3)の何れか1項に記載の自動車パネル。
前記環状の接合部付ユニットは複数設けられ、
互いに隣接する2つの前記環状の接合部付ユニットの前記板厚方向視における中心間の距離が200mm以下である、前記(1)~前記(9)の何れか1項に記載の自動車パネル。
前記インナーが板厚0.50mm以下の鋼板である、前記(1)~前記(10)の何れか1項に記載の自動車パネル。
前記インナーが板厚0.75mm以下のアルミ板である、前記(1)~前記(10)の何れか1項に記載の自動車パネル。
前記複数のノズルは、個別に前記接着剤の供給のオン/オフを切替可能に構成されており、
全ての前記ノズルから前記接着剤を一括して供給することで前記塗布対象に前記所定のパターンの少なくとも一部を含む配列で前記接着剤を塗布するか、または、一部の前記ノズルから前記接着剤を供給することで前記塗布対象に前記所定のパターンの一部の配列で前記接着剤を塗布する、自動車パネルの製造方法。
前記直線方向は、前記第1方向、前記第2方向、および、前記第1方向と前記第2方向の双方に交差する第3方向の少なくとも一つである、前記(16)に記載の自動車パネルの製造方法。
一般的に、自動車パネルは、アウターパネルが比較的平坦な形状である一方、インナーパネルは、凹凸のある形状である。そして、インナーパネルのうちアウターパネル側に凸となっている箇所にマスチックシーラ等のシーラ(接着剤)が塗布されている。シーラは、インナーパネルおよびアウターパネルに接触してこれらのパネルを接合している。また、自動車フードは、自動車の車長方向の長さおよび車幅方向の長さと比べて、車高方向の高さ(厚み)が小さい。このため、自動車フードの組立時にアウターパネルまたはインナーパネルにシーラを塗布する際、自動車フードの厚み方向と直交する方向(車長方向および車幅方向)へのシーラ塗布用ノズルの移動量が、シーラ塗布作業時間を左右する。よって、1枚の自動車パネル製造時におけるシーラ塗布用ノズルの構成および動作を工夫することで、タクトタイムの短縮化を図ることに着目した。なお、本実施形態では、タクトタイムは、1つの自動車パネルを製造する際におけるアウターとインナーとを接合する接合部となるシーラを塗布する作業時間をいう。
以下、本発明の実施形態について図面を参照しつつ説明する。なお、本実施形態では、自動車パネルの一例として、自動車フードを説明する。しかしながら、本発明は、アウターと、インナーと、これらインナーおよびアウター同士を接合している接合部を有する自動車パネルであれば適用できる。このような自動車パネルとして、サイドドア、バックドア等のドアパネル、ルーフアウターパネルを含むルーフパネル、フェンダーパネル、クオーターパネル等を例示できる。
このように、本実施形態では、複数の不完全ユニット8およびユニット9は、接合部付ユニットを複数含んでいる。
上述の実施形態では、パターンP1に加えて部分パターンP2で接合部20が形成される形態を例に説明した。しかしながら、この通りでなくてもよい。例えば、第1実施形態の第1変形例を説明するための図である図10に示すように、部分パターンP2の配列が設けられなくてもよい。この変形例では、所定の第2形態が設けられている。第2形態とは、全ての接合部付ユニット(全てのユニット9および不完全ユニット84,89)のそれぞれにおいて、複数の接合部20が所定のパターンP1を含む配列で配置されている形態をいう。本変形例では、全ての接合部付ユニットにおいて、接合部20が3点配置されている。この変形例で示す接合部20の配列を実現する工程は、第1実施形態において部分パターンP2で接合部20を塗布する工程を省略したものに相当する。
上述の実施形態および変形例では、各接合部20の配列パターンP1が点状パターンである形態を例に説明した。しかしながら、この通りでなくてもよい。例えば、第1実施形態の第2変形例を説明するための図である図11に示すように、各接合部20の配列パターンは、3つ以上の線状パターンP1であってもよい。
上述の実施形態および変形例では、全ての接合部20がパターンP1または部分パターンP2に属する形態を例に説明した。しかしながら、この通りでなくてもよい。図12に示す変形例では、パターンP1または部分パターンP2の何れにも属さない接合部20が設けられていてもよい。図12に示す変形例では、第1実施形態で示した接合部20の配列に加えて、例えば4つの接合部20(201)が追加されている。具体的には、接合部付ユニットとして、パターンP1または部分パターンP2に加えて、パターンP1での接合部20のレイアウトから外れた箇所に設置された接合部20(201)を有する追加接合部付きユニットが設けられている。
図13は、第2実施形態にかかる接合部20の配列を説明するための図である。第2実施形態のインナーパネル2およびアウターパネル3は、第1実施形態と同じである。一方、第2実施形態では、接合部20は、インナーパネル2の各ユニット9、および、一部の不完全ユニット8(84,85,89,810,811,812)におけるフランジ11に設けられる。接合部20が設けられている不完全ユニット8およびユニット9は、接合部付ユニットである。このように、本実施形態では、複数の不完全ユニット8およびユニット9は、接合部付ユニットを複数含んでいる。
上述の第2実施形態では、パターンP1Aに加えて部分パターンP2Aで接合部20が設定される形態を例に説明した。しかしながら、この通りでなくてもよい。例えば、第2実施形態の第1変形例を説明するための図である図15に示すように、部分パターンP2Aの配列が設けられなくてもよい。この変形例では、所定の第2形態が設けられている。第2形態とは、全ての接合部付ユニット(全てのユニット9および不完全ユニット84,89)のそれぞれにおいて、複数の接合部20が所定のパターンP1Aを含む配列で配置されている形態をいう。本変形例では、全ての接合部付ユニットにおいて、接合部20が6点配置されている。この変形例で示す接合部20の配列を実現する工程は、第2実施形態において部分パターンP2Aで接合部20となる接着剤21を塗布する工程を省略したものに相当する。
上述の第2実施形態および変形例では、各接合部20の配列パターンP1Aが点状パターンである形態を例に説明した。しかしながら、この通りでなくてもよい。例えば、第2実施形態の第2変形例を説明するための図である図16に示すように、各接合部20の配列パターンは、6つ以上の線状パターンP1Aであってもよい。
上述の実施形態および変形例では、全ての接合部20がパターンP1Aまたは部分パターンP2Aに属する形態を例に説明した。しかしながら、この通りでなくてもよい。図17に示す変形例では、パターンP1Aまたは部分パターンP2Aの何れにも属さない接合部20が設けられていてもよい。図17に示す変形例では、第2実施形態で示した接合部20の配列に加えて、例えば4つの接合部20(201)が追加されている。具体的には、接合部付ユニットとして、パターンP1Aまたは部分パターンP2Aに加えて、パターンP1Aでの接合部20のレイアウトから外れた箇所に設置された接合部20(201)を有する追加接合部付きユニットが設けられている。
図18は、第3実施形態にかかる接合部20の配列を説明するための図である。第3実施形態のインナーパネル2およびアウターパネル3は、第1実施形態と同じである。一方、第3実施形態では、接合部20は、インナーパネル2の各ユニット9、および、一部の不完全ユニット8(81,84,85,86,89,810,811,812)におけるフランジ11に設けられる。接合部20が設けられている不完全ユニット8およびユニット9は、接合部付ユニットである。このように、第3実施形態では、複数の不完全ユニット8およびユニット9は、接合部付ユニットを複数含んでいる。
上述の第3実施形態では、パターンP1Bに加えて部分パターンP2Bで接合部20となる接着剤21が塗布される形態を例に説明した。しかしながら、この通りでなくてもよい。例えば、第3実施形態の第1変形例を説明するための図である図20に示すように、部分パターンP2Bの配列が設けられなくてもよい。この変形例では、所定の第2形態が設けられている。第2形態とは、全ての接合部付ユニット(全てのユニット9および不完全ユニット84,89)のそれぞれにおいて、複数の接合部20が所定のパターンP1Bを含む配列で配置されている形態をいう。本変形例では、全ての接合部付ユニットにおいて、接合部20が4点配置されている。この変形例で示す接合部20の配列を実現する工程は、第3実施形態において部分パターンP2Bで接着剤21を塗布する工程を省略したものに相当する。
上述の第3実施形態および変形例では、各接合部20の配列パターンP1Bが点状パターンである形態を例に説明した。しかしながら、この通りでなくてもよい。例えば、第3実施形態の第2変形例を説明するための図である図21に示すように、各接合部20の配列パターンは、4つ以上の線状パターンP1Bであってもよい。
上述の実施形態および変形例では、全ての接合部20がパターンP1Bまたは部分パターンP2Bに属する形態を例に説明した。しかしながら、この通りでなくてもよい。図22に示す変形例では、パターンP1Bまたは部分パターンP2Bの何れにも属さない接合部20が設けられていてもよい。図22に示す変形例では、第3実施形態で示した接合部20の配列に加えて、例えば4つの接合部20(201)が追加されている。具体的には、接合部付ユニットとして、パターンP1Bまたは部分パターンP2Bに加えて、パターンP1Bでの接合部20のレイアウトから外れた箇所に設置された接合部20(201)を有する追加接合部付きユニットが設けられている。
(1)各上記実施形態および変形例では、パターンP1,P1A,P1Bが15個以上設けられる形態を例に説明したが、15個未満であってもよい。
範囲内例1~11および範囲外例1~8において、各ユニット9(9,9C,9D)の形状は、以下の通りである。
範囲内例1~6および範囲外例1~6:図7に示す第1実施形態における六角形のユニット9
範囲内例7~9および範囲外例7:図23(A)~図23(C)に示すユニットの第1変形例における丸形のユニット9C
範囲内例10,11および範囲外例8:図25(A)および図25(B)に示すユニットの第2変形例におけるユニット9D
接合部20の配列パターンは以下の通りである。
範囲内例1~3,7,10および範囲外例1~6,7,8:図7に示す第1実施形態の配列パターン(3点パターン)
範囲内例4,8および範囲外例11:図18に示す第3実施形態の配列パターン(4点パターン)
範囲内例5,6,9:図13に示す第2実施形態の配列パターン(6点パターン)
範囲内例1~11および範囲外例1~8の張り剛性を測定した。張り剛性の測定は、以下のようにして行った。具体的には、直径100mmの球状の鉄製圧子でアウターパネル2の表面に90Nの負荷を与えた。負荷を与えた箇所は、範囲内例1~11および範囲外例1~8において、アウターパネル3の上面3bのうち、ユニット9のフランジ11の中心軸線S1上に位置する箇所(図6参照)とした。上記負荷が与えられたときのアウターパネル3の撓みの最大値が7mm以下の場合を○(very good)とし、7mmを超えている場合を△(good)とした。
なお、範囲内例3,7,10は、ユニットの形状が六角形か丸形か矩形かの違いはあるが、これ以外は同じ条件であり同様の結果となった。また、範囲内例4,8,11は、ユニットの形状が六角形か丸形か矩形かの違いはあるが、これ以外は同じ条件であり同様の結果となった。また、範囲内例5,9は、ユニットの形状が六角形か丸形かの違いはあるが、これ以外は同じ条件であり同様の結果となった。また、範囲外例2,7,8は、ユニットの形状が六角形か丸形か矩形かの違いはあるが、これ以外は同じ条件であり同様の結果となった。このように、ユニットが六角形か丸形か矩形であることは、総合評価には影響を与えなかった。
2 インナー
3 アウター
8 不完全ユニット(ユニット)
9 ユニット
11 フランジ
12 縦壁
13 底部
20 接合部
30,30B 塗布機
33 ノズル
L1 環状の接合部付ユニットの中心間の距離
P1,11A,P1B 所定のパターン
P2,12A,P2B 部分パターン(所定のパターンの一部)
X 幅方向(第1方向、直線方向)
Y 長さ方向(第2方向、直線方向)
C 傾斜方向(第3方向、直線方向)
Claims (19)
- アウターと、
インナーと、
前記インナーと前記アウターとを接合している接合部と、
を備え、
前記インナーは、前記アウターの板厚方向視で所定の第1方向に複数並ぶとともに前記第1方向と交差する第2方向に複数並ぶユニットを含み、
各前記ユニットは、前記アウターに隣接配置されるフランジと、前記アウターから離隔するように前記フランジから延びる縦壁と、この縦壁に連続し前記フランジとは離隔している底部と、を含み、
前記複数のユニットは、前記接合部が前記フランジに設けられた接合部付ユニットを複数含み、
所定の第1形態または第2形態が設けられており、
前記第1形態では、一部の前記接合部付ユニットでは前記接合部が前記所定のパターンを含む配列で配置されているとともに、残りの前記接合部付ユニットでは前記接合部が前記所定のパターンの一部を含む配列で配置されており、
前記第2形態では、全ての前記接合部付ユニットのそれぞれにおいて、複数の前記接合部が前記所定のパターンを含む配列で配置されている、自動車パネル。 - 前記複数のユニットに、互いに同一または相似形状の前記フランジを含むユニットが複数含まれている、請求項1に記載の自動車パネル。
- 前記所定のパターンは、複数の前記接合部付ユニットのそれぞれにおいて同じ大きさに設定されている、請求項1または請求項2に記載の自動車パネル。
- 前記第1形態では、前記所定のパターンの一部および前記所定のパターンの少なくとも一方が、直線方向に並んで配置されており、
前記第2形態では、前記所定のパターンが、前記直線方向に並んで配置されている、請求項1~3の何れか1項に記載の自動車パネル。 - 前記直線方向は、前記第1方向、前記第2方向、および、前記第1方向と前記第2方向の双方に交差する第3方向の少なくとも一つである、請求項1~請求項4の何れか1項に記載の自動車パネル。
- 前記接合部付ユニットとして、前記所定のパターンの一部または前記所定のパターンに加えて、前記所定のパターンでの前記接合部のレイアウトから外れた箇所に設置された前記接合部を有する追加接合部付きユニットが設けられている、請求項1~請求項5の何れか1項に記載の自動車パネル。
- 前記所定のパターンは、3点以上の点状パターンである、請求項1~請求項6の何れか1項に記載の自動車パネル。
- 前記所定のパターンは、3つ以上の線状パターンである、請求項1~請求項6の何れか1項に記載の自動車パネル。
- 前記所定のパターンが、15個以上設けられている、請求項1~請求項8の何れか1項に記載の自動車パネル。
- 前記接合部付ユニットは、前記板厚方向視で環状に形成された前記フランジに前記接合部が設けられた環状の接合部付ユニットを含み、
前記環状の接合部付ユニットは複数設けられ、
互いに隣接する2つの前記環状の接合部付ユニットの前記板厚方向視における中心間の距離が200mm以下である、請求項1~請求項9の何れか1項に記載の自動車パネル。 - 前記アウターが板厚0.60mm以下で到達降伏応力が400MPa以上の鋼板であり、
前記インナーが板厚0.50mm以下の鋼板である、請求項1~請求項10の何れか1項に記載の自動車パネル。 - 前記アウターが板厚0.75mm以下のアルミ板であり、
前記インナーが板厚0.75mm以下のアルミ板である、請求項1~請求項10の何れか1項に記載の自動車パネル。 - アウターとインナーとを接合する接合部となる接着剤を、前記アウターおよび前記インナーの少なくとも一方を含む塗布対象に塗布するときにおいて、所定のパターンの少なくとも一部を含んで配列された複数のノズルを含む塗布機を用いて前記接着剤を前記塗布対象に塗布し、
前記複数のノズルは、個別に前記接着剤の供給のオン/オフを切替可能に構成されており、
全ての前記ノズルから前記接着剤を一括して供給することで前記塗布対象に前記所定のパターンの少なくとも一部を含む配列で前記接着剤を塗布するか、または、一部の前記ノズルから前記接着剤を供給することで前記塗布対象に前記所定のパターンの一部の配列で前記接着剤を塗布する、自動車パネルの製造方法。 - 前記複数のノズルを前記塗布対象に対して往復移動させつつ前記塗布対象の複数箇所に前記接着剤を塗布する、請求項13に記載の自動車パネルの製造方法。
- 前記複数のノズルの相対位置が固定された状態で前記接着剤が塗布される、請求項13または請求項14に記載の自動車パネルの製造方法。
- 前記複数のノズルを直線方向に移動させながら前記接着剤を塗布する、請求項13~請求項15の何れか1項に記載の自動車パネルの製造方法。
- 前記インナーは、前記アウターの板厚方向視で所定の第1方向に複数並ぶとともに前記第1方向と交差する第2方向に複数並ぶユニットを含み、
前記直線方向は、前記第1方向、前記第2方向、および、前記第1方向と前記第2方向の双方に交差する第3方向の少なくとも一つである、請求項16に記載の自動車パネルの製造方法。 - 全ての前記ノズルから前記接着剤を一括して供給することで前記塗布対象に前記所定のパターンの少なくとも一部を含む配列で前記接着剤を塗布するか、または、一部の前記ノズルから前記接着剤を供給することで前記塗布対象に前記所定のパターンの一部の配列で前記接着剤を塗布する塗布工程の前の工程または後の工程で、前記所定のパターンでの前記接着剤のレイアウトから外れた箇所に前記接着剤を塗布する、請求項13~請求項17の何れか1項に記載の自動車パネル。
- 複数の前記ノズル同士の間隔よりも短い間隔で複数の前記ノズルを移動させながら前記接着剤を前記塗布対象へ供給する、請求項13~請求項18の何れか1項に記載の自動車パネルの製造方法。
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JP2005193863A (ja) | 2004-01-09 | 2005-07-21 | Mazda Motor Corp | 車両のフードパネル構造 |
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