WO2015137379A1 - 車体骨格構造 - Google Patents
車体骨格構造 Download PDFInfo
- Publication number
- WO2015137379A1 WO2015137379A1 PCT/JP2015/057111 JP2015057111W WO2015137379A1 WO 2015137379 A1 WO2015137379 A1 WO 2015137379A1 JP 2015057111 W JP2015057111 W JP 2015057111W WO 2015137379 A1 WO2015137379 A1 WO 2015137379A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- closed cross
- foamable
- inner panel
- section frame
- vehicle body
- Prior art date
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/10—Understructures, i.e. chassis frame on which a vehicle body may be mounted in which the main member is plate-like
-
- 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
- B62D25/087—Luggage compartments
-
- 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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
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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
- B62D27/023—Assembly of structural joints
-
- 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
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/002—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material a foamable synthetic material or metal being added in situ
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2304/00—Optimising design; Manufacturing; Testing
- B60Y2304/07—Facilitating assembling or mounting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2410/00—Constructional features of vehicle sub-units
- B60Y2410/12—Production or manufacturing of vehicle parts
- B60Y2410/124—Welded parts
Definitions
- the present invention relates to a vehicle body frame structure in which a closed cross section frame is formed by a plurality of outer panels, and an inner panel is provided in a closed cross section of the closed cross section frame.
- a closed cross section frame portion is formed by joining a plurality of outer panels by spot welding, and an inner panel is provided in a closed cross section formed by the closed cross section frame portion, so that a vehicle body frame structure
- the inner panel is provided within the closed cross section of the closed cross section frame.
- MIG welding As a joining method other than spot welding, there is known a method of joining using MIG welding, a bolt and a nut.
- MIG welding it is possible to join an inner panel to a closed cross section frame using a welding wire from the outside of a closed cross section frame. Furthermore, it is possible to bolt the inner panel to each panel by welding the nut in advance to the inner panel or the closed cross section frame.
- MIG welding is considered to be difficult to move the welding wire to a predetermined welding point depending on the application of the vehicle body frame structure.
- assembly tolerance (accuracy) of the inner panel and the closed cross-sectional frame portion is required, which may cause a decrease in workability.
- a highly rigid foam (hereinafter referred to as a foamable adhesive) is known as a material for bonding a metal such as an inner panel or a closed cross section frame.
- the foamable adhesive has a metal adhesive resin as a main component, is foamed by heating to be highly rigid, and has a property of adhering to a metal surface (see, for example, Patent Document 1). It is conceivable to adhere the inner panel to the closed cross section frame by using this foamable adhesive.
- An object of the present invention is to provide a vehicle body frame structure capable of joining an inner panel provided in a closed cross section to a closed cross section frame via a foamable adhesive.
- the invention according to claim 1 is a vehicle body in which a closed cross section frame portion having a closed cross section is formed by welding a plurality of outer panels, and an inner panel disposed in the closed cross section is provided in the closed cross section frame portion.
- a vehicle body frame structure provided with a foamable adhesive which sets a gap between the inner panel and the closed cross section frame portion and bonds the inner panel and the closed cross section frame portion in the gap.
- the inner panels are welded to the outer panels selected from the plurality of outer panels before welding the plurality of outer panels to form the closed cross section frame. After welding the inner panel to the selected outer panel, the remaining outer panels are welded to the selected outer panel to form a closed cross section frame.
- a gap is secured between the remaining outer panel and the inner panel. Therefore, in claim 1, a gap is set between the remaining outer panel (that is, the closed cross section frame portion) and the inner panel, and the foamable adhesive is provided in the gap.
- the foamable adhesive body is provided to a temporary fixing portion temporarily fixing to the closed cross section frame portion, one of the inner panel, and the temporary fixing portion, the inner panel and And a foamable bonding portion for bonding the closed cross section frame portion.
- a guide hole is provided in the other of the closed cross-sectional frame portion and the inner panel and a portion facing the expandable adhesive portion.
- the temporary fixing portion and the foamable adhesion portion integrally form a foamable adhesive capable of adhering the inner panel and the closed cross section frame portion. It is formed.
- the foamable adhesive is made of a metal adhesive resin as a main component, and is adhered to the inner panel and the closed cross section frame by foaming by heating and high A molding composition with properties that make it rigid.
- a through hole is formed in one of the closed cross section frame portion and the inner panel and the temporary fixing portion is inserted, and the temporary fixing portion is inserted into the through hole.
- the connector further comprises: an insertion portion capable of reducing the diameter toward the end portion; and an insertion portion provided at the base of the insertion portion and concavely formed to be insertable into the through hole.
- the temporary fixing portion has at least one groove portion opened at the tip end portion of the insertion portion and extending toward the base portion of the insertion portion.
- the temporary fixing portion extends in the axial direction of the foamable adhesive and is a slit portion opened in a direction perpendicular to the axial direction of the foamable adhesive. Have at least one.
- the slit portion is extended to the foamable bonding portion such that the surface of the foamable adhesive body facing the other of the closed cross section frame portion and the other of the inner panel is opened. Be done.
- one of the closed cross-sectional frame portion and the inner panel has a locking piece that can be deformed in a state of being in contact with the temporary fixing portion inserted into the through hole.
- the temporary fixing portion and the foamable bonding portion sandwich one of the closed cross-sectional frame portion and the inner panel in a side view substantially U-shape.
- the claw portion is provided on one of the temporary fixing portion and the foamable bonding portion, and one of the closed cross section frame portion and the inner panel is sandwiched by the foamable bonding body, A claw engages with an engagement hole formed in one of the closed cross section frame and the inner panel.
- the inner panel is a shielding wall having an outer peripheral edge which is orthogonal to the longitudinal direction of the closed cross section frame and is formed along the inner surface of the closed cross section frame.
- a joint piece projecting from the outer peripheral edge of the shielding wall along the inner surface of the closed cross-sectional frame, in order to form the gap between the joint piece and the closed cross-sectional frame, A recessed portion is formed in one of the joint piece and the closed cross section frame portion so as to be separated from the other.
- the plurality of outer panels include a first outer panel and at least two second outer panels, and at least two second outer panels are assembled to the first outer panel. Is formed, and the at least two second outer panels are divided in the longitudinal direction of the closed cross-section frame, so that each second outer panel has a divided portion. And the divided portion has an overlapping portion to be overlapped, the gap is set between the overlapping portions, and the foamable adhesive is provided in the gap to bond the overlapping portion.
- a gap is set between the closed cross-sectional frame portion and the inner panel, and the foamable adhesive is provided in the gap. Therefore, in the state in which the closed cross section frame portion is formed, the foamable adhesive can be foamed by heating to be adhered to the inner panel and the closed cross section frame portion. Thereby, the inner panel and the closed cross section frame can be joined via the foamable adhesive.
- the foamable adhesive body is provided with the temporary fixing portion and the foamable adhesive portion. Therefore, when assembling the vehicle body frame structure, the temporary fixing portion can be temporarily fixed to one of the closed cross section frame portion and the inner panel in advance. Thus, the foamable adhesive portion of the foamable adhesive can be easily provided in the gap set between the inner panel and the closed cross section frame.
- the guide hole is provided in the other of the closed cross section frame portion and the inner panel, and at a portion facing the foamable bonding portion. Therefore, when the foamable bonding portion foams, the foamed foamable bonding portion can be introduced into the guide hole. As a result, the portion facing the foamable bonding portion can be more firmly bonded by the foamable foam bonding portion, and the bonding strength of the closed cross section frame portion and the inner panel can be further enhanced.
- the temporary fixing portion is formed of the foamable adhesive.
- the temporary fixing portion is temporarily fixed to one of the closed cross-sectional frame portion and the inner panel by being inserted into a through hole formed in one of the inner panel.
- the temporarily fixed portion temporarily fixed to one side is inserted into the through hole and is projected to the opposite side of the insertion side. Therefore, the temporary fixing portion can be foamed on the opposite side to the insertion side.
- the opposite side of the insertion side can be firmly bonded by the foamed temporary fixing portion, and the bonding strength of the closed cross section frame portion and the inner panel can be further enhanced.
- the molding composition of the foamable adhesive is set so as to have high rigidity in the foamed state.
- the foamable adhesive that is, the foamable adhesive
- the closed cross-section frame and the inner panel are joined with the highly rigid foam adhesive.
- the load can be suitably transmitted between the closed cross section frame portion and the inner panel.
- the inner panel can prevent the closed cross section of the closed cross section frame from being deformed, and the rigidity and strength of the closed cross section frame can be enhanced by the inner panel.
- the insertion portion can be inserted into the through hole by reducing the diameter of the insertion portion of the temporary fixing portion toward the tip end portion. Therefore, the insertion portion can be easily inserted into the through hole without taking time and effort. Thereby, the workability of temporarily fixing the temporary fixing portion (that is, the foamable adhesive body) to one of the closed cross section frame portion and the inner panel can be enhanced.
- the insertion portion can be caused to interfere with the peripheral edge of the through hole to be elastically deformed in the groove portion side.
- the diameter of the insertion portion can be reduced according to the through hole, and the temporary fixing portion can be more easily inserted into the through hole.
- At least one slit portion is provided in the temporary fixing portion. Therefore, when inserting the temporary fixing portion into the through hole, the insertion portion can be made to interfere with the peripheral edge of the through hole and be elastically deformed to the slit portion side. Thus, the diameter of the insertion portion can be reduced according to the through hole, and the temporary fixing portion can be more easily inserted into the through hole.
- the slit portion is extended to the foamable bonding portion to open the foamable bonding portion. Therefore, when inserting the temporary fixing portion into the through hole, it is possible to move the fitting portion and the foamable bonding portion to the slit portion side together with the insertion portion. As a result, the diameter of the insertion portion can be reduced according to the through hole, so the insertion portion can be inserted more easily into the through hole even if the diameter of the through hole is reduced. By reducing the hole diameter of the through hole, the rigidity and strength of one of the closed cross section frame portion and the inner panel can be enhanced. Furthermore, the processing tolerance of the through hole can be absorbed by reducing the diameter of the insertion portion in accordance with the through hole. Thereby, the operation of inserting the temporary fixing portion into the through hole can be more easily performed.
- the locking piece is provided on one of the closed cross section frame portion and the inner panel, and the locking piece is deformable in a state of being in contact with the temporary locking portion.
- the temporary fixing portion deforms the locking piece, and the temporary fixing portion can be easily inserted into the through hole.
- the locking piece can be brought into contact with the temporary fixing portion inserted into the through hole.
- the temporary locking portion can be prevented from coming off from the through hole by the locking piece, and the temporary locking portion can be temporarily fixed to the through hole with certainty.
- the foamable adhesive body is formed in a substantially U shape in a side view in the temporary holding portion and the foamable bonding portion, and the claw portion is formed on one of the temporary holding portion and the foamable bonding portion. Therefore, the claw portion can be engaged with the engagement hole by slidingly moving one of the closed cross-sectional frame portion and the inner panel so as to be sandwiched by the foamable adhesive.
- the foamable adhesive can be easily attached to one of the closed cross section frame and the inner panel, and the foamable adhesive can be temporarily fixed to one of the closed cross section frame and the inner panel.
- the inner panel has the shielding wall, and the shielding wall is attached perpendicularly to the longitudinal direction of the closed cross section frame.
- the shield wall can prevent the closed cross section of the closed cross section frame from being deformed, and the rigidity and strength of the closed cross section frame can be enhanced by the shield wall.
- a recess was formed in one of the joint piece and the closed cross section frame, and a gap was formed between the joint piece and the closed cross section frame. Therefore, by providing the foamable adhesive in the gap, the joint piece and the closed cross-section frame can be joined via the foamable adhesive. Thereby, the site
- At least two second outer panels are assembled to the first outer panel to form a closed cross section frame portion, and the second outer panel is provided with the dividing portion.
- the division part was equipped with the overlapping part. As described above, it is conceivable that welding the overlapping portion becomes difficult by providing the overlapping portion in the closed cross-sectional frame portion. Therefore, a gap was set between the overlapping portions, and a foamable adhesive was provided in the gap. Thus, the overlapping portion (i.e., the divided portion) can be adhered by the foamable adhesive. Thereby, the division part of a 2nd outer panel (namely, closed cross section frame) can be reinforced by an overlap part, and the rigidity and intensity of a closed cross section frame can be raised.
- FIG. 7 is a view for explaining an example of assembling the vehicle body frame structure of the first embodiment. It is sectional drawing which shows the vehicle body frame structure of Example 2 which concerns on this invention. It is 7 parts enlarged view of FIG. (A) is sectional drawing which shows the state by which the foamable adhesive body of Example 3 concerning this invention was foamed, (b) is sectional drawing which shows the state before foaming of the foamable adhesive body of Example 3 .
- FIG. (A) is a side view which shows the state which temporarily affixed the foamable adhesive body of Example 4 which concerns on this invention to a 2nd outer panel
- (b) is a perspective view which shows the foamable adhesive body of Example 4.
- FIG. (A) is a side view which shows the state which temporarily affixed the foamable adhesive body of Example 5 which concerns on this invention to a 2nd outer panel
- (b) is a perspective view which shows the foamable adhesive body of Example 5.
- FIG. (A) is a side view which shows the state which temporarily affixed the foamable adhesive body of Example 6 which concerns on this invention to a 2nd outer panel
- (b) is a perspective view which shows the foamable adhesive body of Example 6.
- (A) is a side view showing a state in which the foamable adhesive of Example 7 according to the present invention is temporarily fixed to the second outer panel
- (b) is a perspective view showing the foamable adhesive of Example 7
- (c 12 is a cross-sectional view taken along the line 12c-12c of FIG.
- (A) is a side view showing a state in which the foamable adhesive of Example 8 according to the present invention is temporarily fixed to the second outer panel
- (b) is a perspective view showing the foamable adhesive of Example 8,
- (c 2.) is a side view which shows the state which foamed the foamable adhesive of (a).
- FIG. 1 is a side view showing a state in which the foamable adhesive of Example 9 according to the present invention is temporarily fixed to the second outer panel
- (b) is a perspective view showing the foamable adhesive of Example 9
- (c 2.) is a side view which shows the state which foamed the foamable adhesive of (a).
- (A) is a side view which shows the foamable adhesive body of Example 10 which concerns on this invention
- (b) is a side view which shows the state which foamed the foamable adhesive body of Example 10.
- FIG. It is a perspective view which shows the vehicle body side part provided with the vehicle body frame structure of Example 11 which concerns on this invention.
- 17 is a cross-sectional view taken along line 17-17 of FIG. FIG.
- FIG. 21 is an exploded perspective view showing a vehicle body side portion of an eleventh embodiment.
- FIG. 21 is a perspective view showing a fourth inner panel provided in the vehicle body frame structure of Example 11;
- FIG. 21 is a perspective view showing a second inner panel and a third inner panel provided in the vehicle body frame structure of Example 11;
- It is a figure explaining the example which joins a 4th inner panel to the closed-section frame part of Example 11 with a foamable adhesive.
- It is a perspective view which shows the vehicle body rear part provided with the vehicle body frame structure of Example 12 which concerns on this invention. It is an arrow 24 figure of FIG.
- FIG. 27 is a cross-sectional view taken along line 27-27 of FIG. 25. It is a figure explaining the example which temporarily fixes a foamable adhesive body to the closed cross-section frame part of Example 12. FIG. It is a figure explaining the example which joins the closed cross-section frame part of Example 12 by a foaming adhesive.
- the vehicle body frame structure 10 includes a closed cross section frame 11 formed in a substantially rectangular frame, and an inner panel 14 disposed in the closed cross section 12 of the closed cross section frame 11.
- a foamable adhesive 16 for bonding the panel 14 and the closed cross section frame 11 is provided.
- the closed cross section frame portion 11 includes a first outer panel 21 formed in a substantially hat-shaped cross section, and a second outer panel 31 joined to the first outer panel 21.
- the first outer panel 21 is a plate made of metal, and has a first wall portion 22, a first left bent portion 23, a first right bent portion 24, a first left flange 25 and a first right flange 26.
- the first wall portion 22 is formed flat by extending horizontally.
- the first left turn curved portion 23 is bent so as to extend downward from the left end of the first wall portion 22.
- the first right bent portion 24 is bent so as to extend downward from the right end of the first wall portion 22.
- the first left flange 25 is bent so as to protrude leftward from the lower end portion of the first left turn curved portion 23.
- the first right flange 26 is bent so as to project rightward from the lower end portion of the first right bent portion 24.
- the first wall portion 22, the first left turn curved portion 23 and the first right bent portion 24 form a substantially U-shaped section in cross section. Further, the first outer panel 21 is formed in a hat-like shape in cross section by the first wall portion 22, the first left turn curved portion 23, the first right bent portion 24, the first left flange 25 and the first right flange 26.
- the second outer panel 31 is a member that is substantially symmetrical with the first outer panel 21 in the vertical direction.
- the second outer panel 31 is a metal plate and has a second wall 32, a second left turn 33, a second right 34, a second left flange 35, and a second right flange 36.
- the second wall 32 is formed flat by extending horizontally.
- the second left turn curved portion 33 is bent so as to extend upward from the left end of the second wall portion 32.
- the second right bent portion 34 is bent so as to extend upward from the right end of the second wall 32.
- the second left flange 35 is bent so as to protrude leftward from the upper end portion of the second left turn curved portion 33.
- the second right flange 36 is bent so as to project rightward from the upper end portion of the second right bent portion 34.
- a through hole 38 is formed in a circular arc shape in the second wall 32, and the foamable adhesive 16 is inserted into the through hole 38.
- the second wall 32, the second left turn 33, and the second right bend 34 form a substantially U-shaped cross section.
- the second outer panel 31 is formed in a hat-like shape in cross section by the second wall portion 32, the second left turn curved portion 33, the second right bent portion 34, the second left flange 35, and the second right flange 36.
- the first left flange 25 and the second left flange 35 are joined by spot welding, and the first right flange 26 and the second right flange 36 are joined by spot welding.
- the closed cross-sectional frame portion 11 is formed by the first outer panel 21 and the second outer panel 31.
- a closed cross section 12 is formed inside the closed cross section frame 11.
- the closed cross-section 12 includes a first wall 22, a first left turn 23, a first right turn 24, a second wall 32, a second left turn 33, and a second right turn 34. It is formed in a substantially rectangular shape.
- a metal inner panel 14 is disposed in the closed cross section 12 of the closed cross section frame 11.
- the inner panel 14 is a shield wall 41 extending in the vertical direction between the first wall 22 and the second wall 32, and an upper portion extending along the first wall 22 from the upper end of the shield wall 41 to the right A joint piece 42 and a lower joint piece 43 extending rightward from the lower end of the shielding wall 41 along the second wall 32 are provided.
- the inner panel 14 is formed to have a substantially U-shaped cross section by the shielding wall 41, the upper joint piece 42 and the lower joint piece 43.
- the upper joint piece 42 is joined to the inner surface of the first wall 22 by spot welding.
- a gap 45 is set between the second wall 32 and the lower joint piece 43. The reason for setting the gap 45 between the second wall 32 and the lower joint piece 43 is as follows.
- the upper joint piece 42 of the inner panel 14 is joined to the first wall portion 22 of the first outer panel 21.
- the second left flange 35 of the second outer panel 31 is joined to the first left flange 25 of the first outer panel 21, and the first right flange 26 of the first outer panel 21 is 2 Join the right flange 36.
- the lower joint piece 43 of the inner panel 14 interferes with the second wall 32 of the second outer panel 31 in this joining step. Therefore, in order to prevent the lower joint piece 43 from interfering with the second wall portion 32, the gap 45 is set between the second wall portion 32 and the lower joint piece 43.
- the gap 45 is set between the second wall portion 32 and the lower joining piece 43, it is difficult to join the portion where the gap 45 is set by MIG welding or a bolt and a nut. For this reason, in the vehicle body frame structure 10, the joint location by MIG welding, a bolt and a nut is limited. Therefore, the gap 45 is filled with the foamable bonding portion 55 of the foamable bonding body 16, and the second wall portion 32 and the lower bonding piece 43 are bonded by the foamable bonding portion 55.
- the gap 45 between the second wall portion 32 and the lower bonding piece 43 is filled with the foamable bonding portion 55 of the foamable bonding body 16.
- the foamable adhesive body 16 shown by an imaginary line shows the foamable adhesive body 16 in the state before foaming.
- the gap 45 is filled with the foamable adhesive portion 55 of the foamed foamable adhesive 16.
- the foamable adhesive 16 is formed to have a substantially circular cross section, and a temporary fixing portion 51 inserted into the through hole 38, and a foamable bonding portion 55 provided for the temporary holding portion 51. Is equipped.
- the expandable adhesive body 16 is formed in a clip shape by the temporary fixing portion 51 and the expandable adhesive portion 55.
- the temporary fixing portion 51 and the foamable adhesive portion 55 are integrally formed of a foamable adhesive.
- the foamable adhesive is a molding composition which has a metal adhesive resin as a main component and adheres to the second wall 32 and the lower joint piece 43 by foaming when heated, and has high rigidity. .
- This foamable adhesive is an adhesive generally known as what bonds metal to metal.
- the temporary fixing portion 51 is formed so as to be inserted into the through hole 38 and temporarily fixed.
- the temporary fixing portion 51 includes an insertion portion 52 formed to be insertable into the through hole 38 and a fitting portion 53 provided on a base 52 a of the insertion portion 52.
- the insertion portion 52 is formed in an inverted truncated cone shape so as to decrease in diameter from the base portion 52a to the tip portion 52b.
- the tip 52 b is formed in the shape of a convex curved surface (spherical) that protrudes downward.
- the distal end portion 52b of the insertion portion 52 is formed into a convex curved surface (spherical shape), and the diameter of the insertion portion 52 of the temporary fixing portion 51 is reduced toward the distal end portion 52b.
- the portion 52 can be inserted into the through hole 38. Therefore, the insertion portion 52 can be easily inserted into the through hole 38 without any trouble. Thereby, the workability of temporarily fixing the temporary fixing portion 51 (that is, the foamable adhesive 16) to the second wall portion 32 can be enhanced.
- the insertion portion 53 is provided on the base 52 a of the insertion portion 52. Furthermore, a foamable bonding portion 55 is provided in the insertion portion 53.
- the insertion portion 53 is formed in a concave shape with respect to the foamable bonding portion 55 and the base 52 a so as to be able to be inserted into the through hole 38.
- the second wall portion 32 is sandwiched between the foamable bonding portion 55 and the base portion 52a.
- the temporary fixing portion 51 (specifically, the foamable adhesive 16) is temporarily fixed to the second wall portion 32.
- the foamable bonding portion 55 is disposed in the gap 45 between the second wall portion 32 and the lower bonding piece 43.
- the foamable bonding portion 55 has a predetermined thickness, and is formed in a disk shape having a larger outer diameter than the insertion portion 52 and the insertion portion 53.
- the foamable adhesive 16 is foamed by heating, and the gap 45 is filled with the foamable adhesive portion 55 of the foamed expandable adhesive 16. Therefore, the foamable bonding portion 55 is bonded to the second wall portion 32 and the lower bonding piece 43. As a result, the second wall portion 32 and the lower joint piece 43 are joined by the foamable adhesive portion 55, and the rigidity and strength of the vehicle body frame structure 10 are suitably secured.
- the temporary fixing portion 51 is integrally formed of a foaming adhesive in the same manner as the foaming adhesive portion 55.
- the temporary fixing portion 51 is protruded outward from the surface 32a of the second wall portion 32 (that is, the side opposite to the side into which the temporary fixing portion is inserted). Therefore, the temporary fixing portion 51 can be foamed on the surface 32 a side of the second wall portion 32. As a result, the surface 32 a side of the second wall 32 can be firmly adhered by the foamed temporary stop 51, and the bonding strength of the second wall 32 and the lower joint piece 43 can be further enhanced.
- the temporary fixing portion 51 and the foamable bonding portion 55 are integrally formed of a foamable adhesive having a property of becoming high rigidity by foaming. That is, the second wall portion 32 and the lower bonding piece 43 can be bonded by the highly rigid foamable bonding portion 55. Therefore, a load can be suitably transmitted between the closed cross-sectional frame 11 and the inner panel 14.
- the inner panel 14 can prevent the closed cross section 12 of the closed cross section frame portion 11 from being deformed, and the rigidity and strength of the closed cross section frame portion 11 can be enhanced by the inner panel 14.
- FIG. 5A the upper joint piece 42 of the inner panel 14 is abutted against the first wall 22 of the first outer panel 21, and the first wall 22 and the upper joint 42 are joined by spot welding. . Furthermore, the temporary fixing portion 51 of the foamable adhesive 16 is inserted into the through hole 38 of the second outer panel 31 (specifically, the second wall portion 32) as shown by arrow A, and the insertion portion 53 is inserted into the through hole 38. Let Therefore, the foamable adhesive 16 can be temporarily fixed to the second wall 32 in advance.
- the second left flange 35 of the second outer panel 31 is attached to the first left flange 25 of the first outer panel 21. Join by spot welding. Furthermore, the second right flange 36 of the second outer panel 31 is joined to the first right flange 26 of the first outer panel 21 by spot welding.
- the closed cross section frame portion 11 is formed by the first outer panel 21 and the second outer panel 31, and the closed cross section 12 is formed inside the closed cross section frame portion 11. Furthermore, a gap 45 is secured between the second wall portion 32 and the lower joint piece 43, and the foamable adhesive portion 55 of the foamable adhesive 16 is disposed in the gap 45. As described above, by temporarily fixing the foamable adhesive 16 to the second wall 32 in advance, the foamable adhesive 55 of the foamable adhesive 16 can be removed by the gap 45 between the second wall 32 and the lower joint piece 43. It can be easily arranged.
- the foamed expandable adhesive portion 55 is filled in the gap 45 by heating and expanding the expandable adhesive body 16. Therefore, the foamed expandable adhesive portion 55 is adhered to the second wall portion 32 and the lower joint piece 43, and the second wall 32 and the lower joint piece 43 are joined by the foamed expandable adhesive portion 55. As described above, since the gap 45 is set between the second wall portion 32 and the lower joint piece 43, a portion which is difficult to be welded by MIG welding or a bolt and a nut can be joined by the foamable adhesive portion 55. Thereby, the rigidity and strength of the vehicle body frame structure 10 can be suitably secured.
- Examples 2 to 12 will be described based on FIGS. 6 to 29.
- First, Examples 2 to 10 will be described based on FIGS. 6 to 15.
- a vehicle body frame structure 60 according to a second embodiment will be described based on FIGS. 6 and 7.
- the vehicle body frame structure 60 of the second embodiment is configured to temporarily fix the foamable adhesive 16 of the first embodiment to the lower joint piece 43 of the inner panel 14, and
- the structure of the vehicle body is the same as that of the vehicle body frame structure 10 of the first embodiment.
- the through hole 62 is formed in the lower joint piece 43.
- the temporary fixing portion 51 of the foamable adhesive 16 is inserted into the through hole 62 as shown by the arrow B, the foamable adhesive 16 is temporarily fixed to the lower joint piece 43.
- the second left flange 35 is joined to the first left flange 25 by spot welding
- the second right flange 36 is joined to the first right flange 26 by spot welding, whereby the foamable adhesive 16 is formed in the gap 45.
- the foamed foamable adhesive portion 55 is buried in the gap 45, and the second wall portion 32 and the lower joint piece 43 are joined by the foamed foamable adhesive portion 55. Ru.
- the rigidity and the strength are suitably secured in the vehicle body frame structure 60, as in the case of the vehicle body frame structure 10 of the first embodiment.
- a vehicle body frame structure 70 according to a third embodiment will be described based on FIG.
- the vehicle body frame structure 70 of the third embodiment is the same as the vehicle body frame structure 10 of the first embodiment except that the guide holes 72 are formed in the inner panel 14 of the first embodiment.
- a guide hole 72 is formed in the lower joint piece 43.
- the guide hole 72 is disposed at a portion 43 a of the lower bonding piece 43 facing the foamable bonding portion 55.
- the foamable bonding portion 55 foams, a part 55 a of the foamable bonding portion 55 can be guided to the back surface 43 b of the lower bonding piece 43 through the guide hole 72. As a result, the portion 43a opposed to the foamable bonding portion 55 can be bonded more firmly by the foamable bonding portion 55, and the bonding strength of the closed cross section frame portion 11 and the inner panel 14 can be further enhanced. .
- the guide holes 72 are formed in the second wall 32 of the second outer panel 31.
- the second wall 32 can be more firmly bonded by the foamed expandable bonding portion 55.
- a foamable adhesive 74 according to a fourth embodiment will be described based on FIG.
- the foamable adhesive 74 of the fourth embodiment is obtained by forming the groove 77 in the foamable adhesive 16 of the first embodiment, and the other configuration is the same as the foamable adhesive 16 of the first embodiment. It is similar.
- a groove 77 is formed in the temporary fixing portion 75.
- the groove portion 77 is opened at the tip end portion 76 a of the insertion portion 76 and extends in the direction of the axis 78 of the foamable adhesive 74 toward the base portion 76 b of the insertion portion 76.
- the insertion portion 76 when inserting the temporary fixing portion 75 into the through hole 38, the insertion portion 76 can be made to interfere with the peripheral edge 38a of the through hole 38 and be elastically deformed in the groove portion 77 as shown by the arrow C.
- the diameter of the insertion portion 76 can be reduced to correspond to the through hole 38, and the temporary fixing portion 75 can be easily inserted into the through hole 38. That is, the workability of temporarily fixing the foamable adhesive 74 to the second wall 32 can be enhanced.
- a foamable adhesive 80 according to Example 5 will be described based on FIG. As shown in FIG. 10, the foamable adhesive 80 of Example 5 is obtained by forming a plurality of grooves 83 in the foamable adhesive 16 of Example 1, and the other configuration is the foamable adhesive of Example 1. It is similar to 16.
- the foamable adhesive 80 has a plurality of grooves 83 formed in the temporary fixing portion 81.
- the plurality of groove portions 83 are formed at an equal interval in the circumferential direction (direction of arrow D) of the temporary fixing portion 81, and three grooves 83 are formed as an example.
- Each groove portion 83 is opened at the tip end portion 82 a of the insertion portion 82 and extends in the direction of the axis 84 of the foamable adhesive 80 toward the base portion 82 b of the insertion portion 82.
- the insertion portion 82 when inserting the temporary fixing portion 81 into the through hole 38, the insertion portion 82 can be made to interfere with the peripheral edge 38a of the through hole 38 and be elastically deformed on the groove 83 side as shown by the arrow E. As a result, the diameter of the insertion portion 82 can be reduced according to the through hole 38, and the temporary fixing portion 81 can be easily inserted into the through hole 38. That is, the workability of temporarily fixing the foamable adhesive 80 to the second wall portion 32 can be enhanced.
- the invention is not limited thereto, and the plurality of groove portions 83 other than three may be formed in the temporary fixing portion 81. Is also possible.
- a foamable adhesive 86 according to a sixth embodiment will be described based on FIG. As shown in FIG. 11, the foamable adhesive 86 of the sixth embodiment is the foamable adhesive 16 of the first embodiment in which the slit portion 89 is formed, and the other configuration is the foamable adhesive 16 of the first embodiment. Is the same as
- a slit portion 89 is formed in the temporary fixing portion 87.
- the slit portion 89 extends in the direction of the axis 91 of the foamable adhesive 86 and is formed in a long hole by being opened in the direction perpendicular to the direction of the axis 91.
- the lower end 89a of the slit 89 is formed in the vicinity of the tip 88a of the insertion portion 88, and the tip 88a of the insertion 88 is formed in a convex curved surface (spherical shape).
- an upper end 89 b of the slit 89 is formed in the vicinity of the base 88 b of the insertion portion 88 and extends to the insertion portion 53.
- the insertion portion 88 when inserting the temporary fixing portion 87 into the through hole 38, the insertion portion 88 can be caused to interfere with the peripheral edge 38a of the through hole 38, and can be elastically deformed as shown by the arrow F on the slit portion 89 side.
- the diameter of the insertion portion 88 can be reduced to correspond to the through hole 38, and the temporary fixing portion 87 can be easily inserted into the through hole 38. That is, the workability of temporarily fixing the foamable adhesive 86 to the second wall 32 can be enhanced.
- a foamable adhesive 93 according to a seventh embodiment will be described based on FIG. As shown in FIG. 12, the foamable adhesive 93 of Example 7 is obtained by forming a plurality of slits 96 in the foamable adhesive 16 of Example 1, and the other configuration is the foamable adhesive of Example 1. It is similar to the body 16.
- a plurality of slit portions 96 are formed in the temporary fixing portion 94.
- the plurality of slit portions 96 are formed, as an example, at regular intervals in the circumferential direction (arrow G direction) of the temporary fixing portion 94.
- Each slit portion 96 is extended to the foamable bonding portion 55 along the direction of the axis 97 of the foamable adhesive 93, and is opened in the direction orthogonal to the direction of the axis 97. Furthermore, by extending each of the slits 96 to the foamable bonding portion 55, the surface 55b of the foamable bonding portion 55 facing the lower bonding piece 43 is opened at each slit 96. That is, the foamable bonding portion 55 is divided into a plurality of pieces by each slit portion 96.
- each slit portion 96 is formed in the vicinity of the tip end portion 95a of the insertion portion 95, and the tip end portion 95a of the insertion portion 95 is formed in a convex curved surface (spherical shape). Therefore, the distal end portion 95 a of the insertion portion 95 can be easily inserted into the through hole 38.
- the insertion portion 95 and the foamable bonding portion 55 are each It can be moved to the slit portion 96 side.
- the diameter of the insertion portion 53 can be reduced to correspond to the through hole 38. Therefore, even if the diameter of the through hole 38 is reduced, the temporary fixing portion 94 can be easily inserted into the through hole 38.
- the hole diameter of the through hole 38 By reducing the hole diameter of the through hole 38, the rigidity and strength of the second wall 32 (that is, the closed cross section frame 11) can be enhanced. Furthermore, the diameter of the insertion portion 53 is reduced according to the through hole 38, whereby the retention of the foamable adhesive 93 with respect to the through hole 38 can be more satisfactorily prevented, and rattling of the foamable adhesive 93 can be prevented. .
- a vehicle body frame structure 100 according to an eighth embodiment will be described based on FIG. As shown in FIGS. 13 (a) and 13 (b), the vehicle body frame structure 100 of the eighth embodiment includes the second outer panel 31 and the foamable adhesive 16 of the first embodiment as the second outer panel 102 and the foamable adhesive.
- the other structure is the same as that of the vehicle body frame structure 10 of the first embodiment except for the structure 107.
- the second outer panel 102 is a plate made of metal, has a through hole 104 formed in the second wall portion 103, and has a locking piece 105 projecting from the edge of the through hole 104 into the through hole 104.
- the through hole 104 is formed in a substantially rectangular shape by a pair of long sides 104 a and a pair of short sides 104 b.
- the locking piece 105 is projected so as to be elastically deformable from one short side 104 b toward the other short side 104 b.
- the temporary fixing portion 108 of the foamable adhesive 107 is inserted into the through hole 104.
- the temporary fixing portion 108 is formed in a cylindrical shape such that the outer diameter is kept uniform from the base portion 108a to the tip portion 108b.
- the expandable adhesive body 107 is formed like a clip by the temporary fixing portion 108 and the expandable adhesive portion 55.
- the temporary fixing portion 108 of the foamable adhesive 107 When the temporary fixing portion 108 of the foamable adhesive 107 is inserted into the through hole 104 as shown by the arrow I, the temporary fixing portion 108 abuts (interferes) with the distal end portion 105 a of the locking piece 105. In this state, when the temporary fixing portion 108 is inserted into the through hole 104, the locking piece 105 is elastically deformed in the inserting direction of the temporary fixing portion 108.
- the temporary fixing portion 108 when the temporary fixing portion 108 is inserted into the through hole 104, the temporary fixing portion 108 can be easily inserted into the through hole 104 by elastically deforming the locking piece 105 by the temporary fixing portion 108. Further, by forming the locking piece 105 so as to be elastically deformed and inserting the temporary fixing portion 108 into the through hole 104, the temporary fixing portion 108 (that is, the foamable adhesive body 107) is formed of a hard foamable adhesive. It will be possible to
- the locking piece 105 is kept in contact with the temporary fixing portion 108 inserted into the through hole 104. Accordingly, the temporary fixing portion 108 can be prevented from coming off from the through hole 104 by the locking piece 105, and the columnar temporary fixing portion 108 can be temporarily fixed to the through hole 104 with certainty.
- the foamed adhesive portion 55 is heated to cause the foamed adhesive portion 55 to be filled with the gap 45 by heating and foaming, and the foamed adhesive portion 55 forms the second wall.
- the portion 103 and the lower bonding piece 43 are bonded.
- the locking piece 105 is elastically deformed.
- the present invention is not limited to this, and the locking piece 105 may be plastically deformed and kept in contact with the temporary fixing portion 108. It is possible.
- a vehicle body frame structure 110 according to a ninth embodiment will be described based on FIG. As shown in FIGS. 14 (a) and 14 (b), the vehicle body frame structure 110 of the ninth embodiment includes the second outer panel 31 and the foamable adhesive 16 of the first embodiment as the second outer panel 112 and the foamable adhesive.
- the other structure is the same as that of the vehicle body frame structure 10 of the first embodiment except for the one that has been replaced by 117.
- the second outer panel 112 is a plate made of metal, the opening 114 is formed in a substantially rectangular shape in the second wall 113, and the engagement hole 115 is formed in a substantially rectangular shape in the vicinity 113a of the opening 114 There is.
- the tacking portion 118 and the foamable bonding portion 119 are formed in a substantially U-shaped clip shape in a side view, and the clip gap 123 is secured between the tacking portion 118 and the foamable bonding portion 119. .
- the second wall 113 of the second outer panel 112 is fitted into the clip gap 123, the second wall 113 is sandwiched between the temporary fixing portion 118 and the foamable bonding portion 119.
- a claw portion 121 is protruded from the surface 119a facing the temporary fixing portion 118 toward the temporary fixing portion 118.
- the foamable adhesive 117 is moved from the opening 114 side toward the engagement hole 115 as shown by arrow J, and the second wall 113 is fitted into the clip gap 123 between the temporary fixing portion 118 and the foamable adhesive portion 119.
- the second wall portion 113 can be sandwiched by the temporary fixing portion 118 and the foamable bonding portion 119.
- the foamable adhesive 117 By continuing the sliding movement of the foamable adhesive 117 as shown by the arrow J, the claws 121 engage with the engagement holes 115. As a result, the foamable adhesive 117 can be easily attached to the second wall 113, and the foamable adhesive 117 can be temporarily fixed to the second wall 113 with certainty. In this state, by bonding the second outer panel 112 to the first inner panel 14 (see FIG. 14C), the foamable bonding portion 119 is disposed in the gap 45 (see FIG. 14C).
- the second wall 113 is fitted into the clip gap 123 of the temporary fixing portion 118 and the foamable bonding portion 119, so that the amount of deformation of the temporary fixing portion 118 can be reduced. It can be kept small. This makes it possible to form the temporary fixing portion 118 (that is, the foamable adhesive 117) with a hard foamable adhesive.
- the foamable adhesive portion 119 is heated to cause the foamable adhesive portion 119 to be buried in the gap 45 by foaming and the second wall of the foamable adhesive portion 119 which is foamed.
- the portion 113 and the lower bonding piece 43 are bonded.
- the rigidity and the strength are suitably secured.
- a foamable adhesive 125 according to a tenth embodiment will be described based on FIG. As shown in FIG. 15A, in the foamable adhesive 125 of the tenth embodiment, the temporary fixing portion 126 and the foamable bonding portion 127 are formed as separate members.
- the temporary fixing portion 126 is formed of a soft material such as a resin material. Therefore, when inserting the temporary fixing portion 126 into the through hole 38 of the second wall portion 32 as shown by the arrow K, the temporary fixing portion 126 can be easily made by bringing the temporary fixing portion 126 into contact with the peripheral edge 38 a of the through hole 38. It can be deformed. As a result, the temporary fixing portion 126 can be easily inserted into the through hole 38 of the second wall portion 32, and the workability of temporarily fixing the foamable adhesive 125 to the second wall portion 32 can be enhanced.
- the foamable bonding portion 127 is provided on the head portion 126 a of the temporary fixing portion 126.
- the foamable adhesive portion 127 is integrally formed of a foamable adhesive.
- the foamable adhesive is a molding composition which has a metal adhesive resin as a main component and adheres to the second wall 32 and the lower joint piece 43 by foaming when heated, and has high rigidity. .
- the foamed foamable adhesive portion 127 is buried in the gap 45, and the foamable adhesive portion 127 forms the second wall.
- the portion 32 and the lower bonding piece 43 are bonded.
- FIGS. 16 to 29 Examples 11 to 12 will be described based on FIGS. 16 to 29.
- FIG. 16 to 29 “front (Fr)”, “rear (Rr)”, “left (L)”, and “right (R)” follow the direction viewed from the driver.
- a vehicle body frame structure 134 according to an eleventh embodiment will be described based on FIGS. 16 to 20.
- the floor of the cabin 131 is formed by the floor panel 132, and the side portion of the floor panel 132 is supported by the vehicle body frame structure 134.
- the vehicle body frame structure 134 is a side sill for securing the rigidity and strength of the vehicle body side portion 130 by reinforcing the lower portion of the vehicle body side portion 130.
- a front pillar 137 is erected from the front end of the vehicle body frame structure 134.
- a center pillar 138 is erected from the central portion of the vehicle body frame structure 134.
- the vehicle body frame structure 134 includes a closed cross section frame portion 135 formed in a substantially rectangular frame, and an inner panel group 139 disposed in the closed cross section 136 of the closed cross section frame portion 135; A foamable adhesive 16 for bonding the inner panel group 139 and the closed cross section frame portion 135 is provided.
- the closed cross-sectional frame portion 135 includes a first outer panel 141 formed in a substantially hat-shaped cross section, and a second outer panel 151 joined to the first outer panel 141.
- the first outer panel 141 is a plate made of metal, and has a first wall portion 142, a first upper bent portion 143, a first lower bent portion 144, a first upper flange 145, and a first lower flange 146.
- the first wall portion 142 is erected flat by extending in the vertical direction.
- the first upper bent portion 143 is bent so as to extend outward from the upper end portion of the first wall portion 142.
- the first lower bent portion 144 is bent so as to extend outward from the lower end portion of the first wall portion 142.
- the first upper flange 145 is bent so as to project upward from the outer end of the first upper bent portion 143.
- the first lower flange 146 is bent so as to project downward from the outer end of the first lower bent portion 144.
- the first wall portion 142, the first upper bent portion 143, and the first lower bent portion 144 form a portion having a substantially U-shaped cross section.
- the first outer panel 141 is formed into a hat-like shape in cross section by the first wall portion 142, the first upper bent portion 143, the first lower bent portion 144, the first upper flange 145, and the first lower flange 146 There is.
- the second outer panel 151 is a member formed substantially symmetrically with the first outer panel 141 in the left-right direction.
- the second outer panel 151 is a metal plate and includes a second wall 152, a second upper bent portion 153, a second lower bent portion 154, a second upper flange 155, and a second lower flange 156.
- the second wall portion 152 is erected flat by extending in the vertical direction.
- the second upper bent portion 153 is bent so as to extend inward from the upper end portion of the second wall portion 152.
- the second lower bent portion 154 is bent so as to extend inward from the lower end portion of the second wall portion 152.
- the second upper flange 155 is bent so as to project upward from the inner end of the second upper bent portion 153.
- the second lower flange 156 is bent so as to project downward from the inner end of the second lower bent portion 154.
- the second wall portion 152, the second upper bent portion 153, and the second lower bent portion 154 form a substantially U-shaped section in cross section.
- the second outer panel 151 is formed in a hat-like shape in cross section by the second wall portion 152, the second upper bending portion 153, the second lower bending portion 154, the second upper flange 155, and the second lower flange 156. There is.
- the first upper flange 145 and the second upper flange 155 are joined by spot welding, and the first lower flange 146 and the second lower flange 156 are joined by spot welding.
- the closed cross section frame portion 135 of the side sill is formed by the first outer panel 141 and the second outer panel 151.
- a closed cross section 136 is formed inside the closed cross section frame portion 135.
- the closed cross section 136 includes the first wall 142, the first upper bent portion 143, the first lower bent portion 144, the second wall 152, the second upper bent portion 153, and the second lower bend.
- the curved portion 154 is formed in a substantially rectangular shape.
- a metal inner panel group 139 is disposed in the closed cross section 136 of the closed cross section frame portion 135.
- the inner panel group 139 includes a first inner panel 161 disposed at the front end of the closed cross section 136, a second inner panel 162 and a third inner panel 163 disposed at the rear of the first inner panel 161, and a third inner panel. And a fourth inner panel 164 disposed at the rear of the inner panel 163 in the vehicle body.
- the fourth inner panel 164 is provided with a shielding wall 171 disposed orthogonal to the longitudinal direction (that is, the longitudinal direction of the vehicle body) of the closed cross section frame 135 and the outside of the shielding wall 171.
- the first to sixth joining pieces 172 to 177 are projected from the peripheral edge 171a.
- the shielding wall 171 is disposed in the closed cross section 136 of the closed cross section frame portion 135 so as to be orthogonal to the longitudinal direction, and the outer peripheral edge 171 a is formed in a substantially hexagonal shape along the inner surface 135 a of the closed cross section frame portion 135.
- the first to sixth joining pieces 172 to 177 are bent so as to project from the outer peripheral edge 171 a of the shielding wall 171 along the inner surface 135 a of the closed cross section frame 135 toward the front of the vehicle body.
- the sixth joint piece 177 is joined to the first upper bent portion 143 by spot welding.
- the fifth joint piece 176 is joined to the first wall portion 142 by spot welding.
- the fourth joint piece 175 is joined to the first lower bent portion 144 by spot welding.
- the second joint piece 173 is extended along the second wall 152 of the closed cross-sectional frame 135, and a recess 181 is formed.
- the concave portion 181 is formed in a concave shape toward the center of the closed cross section 136 such that the bottom portion 181 a is separated from the second wall portion 152.
- a gap 184 is formed between the recess 181 (in particular, the bottom 181 a of the recess 181) and the second wall 152.
- a through hole 182 is formed in a circular arc shape at the bottom 181 a of the recess 181, and the foamable adhesive 16 is inserted into the through hole 182 from the vehicle outer side as shown by an arrow L.
- the foamable adhesive 16 is temporarily fixed to the recess 181 (specifically, the bottom portion 181a).
- the foamable adhesive 16 is foamed by heating, and the gap 184 is filled with the foamable adhesive portion 55 of the foamed foamable adhesive 16.
- the foamed expandable bonding portion 55 is bonded to the recess 181 and the second wall 152.
- the concave portion 181 and the second wall portion 152 are joined by the foamed expandable bonding portion 55.
- the shielding wall 171 of the fourth inner panel 164 is attached to be orthogonal to the longitudinal direction of the closed cross-sectional frame portion 135.
- the shielding wall 171 can prevent the closed cross section 136 of the closed cross section frame portion 135 from being deformed, and the rigidity and strength of the closed cross section frame portion 135 can be enhanced by the shielding wall 171.
- the portion joining the fourth inner panel 164 to the closed cross section frame portion 135 can be added to the joining portion of spot welding. it can.
- the second inner panel 162 and the third inner panel 163 are connected by a second joint piece 186.
- the second inner panel 162 and the third inner panel 163 are similar to the fourth inner panel 164 except that the second joint piece 186 is different from the fourth inner panel 164. Therefore, hereinafter, the second joint piece 186 of the second inner panel 162 and the third inner panel 163 will be described, and the description of the other portions will be omitted.
- the second joint piece 186 is extended along the second wall 152 of the closed cross-section frame 135, and a recess 187 is formed. Similar to the recess 181 of the fourth inner panel 164, the recess 187 is concave toward the center of the closed cross section 136 so that the bottom 187 a is away from the second wall 152. Thus, a gap 188 is formed between the recess 187 (in particular, the bottom 187 a of the recess 187) and the second wall 152.
- a through hole (not shown) is formed in a circular arc shape at the bottom 181a of the recess 181, and the foamable adhesive 16 is inserted into the through hole from the outside of the vehicle.
- the foamable adhesive 16 is temporarily fixed to the recess 187 (specifically, the bottom portion 187a).
- the foamable adhesive 16 is foamed by heating, and the gap 188 is filled with the foamable adhesive portion 55 of the foamed foamable adhesive 16.
- the foamed expandable adhesive portion 55 is adhered to the recess 187 and the second wall 152. Therefore, the concave portion 187 and the second wall portion 152 are joined by the foamed expandable bonding portion 55.
- the rigidity and strength of the vehicle body frame structure (that is, side sill) 134 can be suitably secured by the second inner panel 162 and the third inner panel 163.
- the first inner panel 161 is similar to the fourth inner panel 164, the description of the first inner panel 161 will be omitted hereinafter.
- the first inner panel 161 can suitably ensure the rigidity and strength of the vehicle body frame structure (that is, the side sill) 134.
- the fourth inner panel 164 is joined to the closed cross section frame portion 135 of the eleventh embodiment based on FIG. 21 and FIG.
- the fifth joint piece 176 of the fourth inner panel 164 is joined to the first wall portion 142 of the first outer panel 141 by spot welding.
- the sixth joining piece 177 is joined to the first upper bent portion 143 by spot welding.
- the fourth joint piece 175 is joined to the first lower bent portion 144 by spot welding.
- the temporary fixing portion 51 of the foamable adhesive 16 is inserted into the through hole 182 formed in the recess 181 of the second bonding piece 173 as shown by the arrow M, and the foamable adhesive 16 is temporarily fixed in the recess 181 in advance.
- the second upper flange 155 of the second outer panel 151 is abutted against the first upper flange 145 of the first outer panel 141 as shown by the arrow N. Further, the second lower flange 156 of the second outer panel 151 is abutted against the first lower flange 146 of the first outer panel 141 as shown by the arrow N.
- the second upper flange 155 of the second outer panel 151 is joined to the first upper flange 145 of the first outer panel 141 by spot welding. Furthermore, the second lower flange 156 of the second outer panel 151 is joined to the first lower flange 146 of the first outer panel 141 by spot welding.
- the closed cross section frame portion 135 is formed by the first outer panel 141 and the second outer panel 151, and the closed cross section 136 is formed inside the closed cross section frame portion 135.
- a gap 184 is secured between the second wall 152 and the recess 181, and the foamable adhesive portion 55 of the foamable adhesive 16 is disposed in the gap 184.
- the foamable adhesive 55 of the foamable adhesive 16 can be easily disposed in the gap 184 between the second wall 152 and the recess 181.
- the foamed expandable adhesive portion 55 is filled in the gap 184 by heating and foaming the expandable adhesive body 16. Accordingly, the foamed expandable adhesive portion 55 is adhered to the second wall portion 152 and the recess 181, and the second expandable wall portion 152 and the recess 181 are joined by the expanded expandable adhesive portion 55. Thereby, the rigidity and strength of the vehicle body frame structure (i.e., side sill) 134 can be suitably secured.
- Example 11 although the example which formed the crevice 181 in the 2nd joined piece 173, and formed the crevice 184 between the 2nd wall 152 of closed section frame 135 was explained, it does not restrict to this. It is also possible to form a recess in the second wall portion 152 and form a gap between the second wall portion 152 and the second joint piece 173. Alternatively, it is possible to form a gap between the second joint piece 173 and the second wall 152 by separating the second joint piece 173 from the second wall 152.
- a vehicle body frame structure 195 will be described based on FIGS. 23 to 27.
- the floor portion of the cabin 191 is formed by the floor panel 193, and the rear end portion 193 a of the floor panel 193 is supported by the vehicle body frame structure 195.
- the vehicle body frame structure 195 is a rear bulkhead for securing the rigidity and strength of the vehicle body rear portion 190 by reinforcing the vehicle body rear portion 190.
- a side sill 197 is provided on the front side of the vehicle body frame structure 195, and a rear floor frame 198 is provided on the rear side of the vehicle body frame structure 195.
- the vehicle body frame structure 195 includes a hollow closed cross section frame portion 201 formed in a substantially rectangular frame, and a foamable adhesive 16 for bonding the closed cross section frame portion 201.
- the closed cross-section frame portion 201 extends leftward in the vehicle width direction to the wheel house 194 along the rear end portion 193 a of the floor panel 193, and further extends upward along the wheel house 194 to have a substantially L-shaped front view. It is formed in the shape of a circle.
- the closed cross-section frame portion 201 is joined to the first outer panel 202 facing the vehicle outer 199 side and the first outer panel 202 so as to face the vehicle interior 191 side.
- a side outer panel (second outer panel) 203, and a second load chamber side outer panel (second outer panel) 204 joined to the first outer panel 202 and facing the load chamber 192 are provided.
- a closed cross section is formed inside the closed cross section frame portion 201 by joining and assembling the first outer panel 202, the second vehicle room outer panel 203, and the second load room outer panel 204 (that is, a plurality of outer panels).
- 206 is formed in a substantially rectangular shape.
- the first outer panel 202 is a substantially flat portion that constitutes a part of a wheel house 194 (specifically, an inner wheel house).
- the second cabin side outer panel 203 is extended in a substantially L shape in a front view (see also FIG. 25), and is formed in a substantially flat shape in cross section.
- the second passenger compartment side outer panel 203 is bent along the first outer panel 202 from the outer end of the second passenger compartment wall 208 facing the passenger compartment 191 and from the outer end of the second passenger compartment wall 208 toward the front of the vehicle body And the second passenger compartment flange 209.
- the second passenger compartment side outer panel 203 is divided into a second upper passenger compartment panel 211 and a second lower passenger compartment panel 214 in the longitudinal direction of the closed cross section frame portion 201 (arrow O direction (see FIG. 25)).
- the second upper casing panel 211 has a second upper casing division 212 at its lower end.
- the second lower passenger compartment panel 214 has a second lower passenger compartment divided part 215 at the upper end.
- the second upper casing division 212 is overlapped with the second lower casing division 215 from the casing 191 side.
- the second luggage compartment side outer panel 204 is extended in a substantially L-shape in a front view, and is formed in a substantially V-shaped cross section.
- the second load chamber side outer panel 204 is bent toward the vehicle front side from the inner end of the second load chamber rear wall portion 221 facing the vehicle body rear side of the load chamber 192 and the second load chamber rear wall portion 221
- a second load chamber rear flange bent along the first outer panel 202 from the outer end of the second load chamber inner wall portion 222 facing the inner side of the load chamber 192 and the second load chamber rear wall portion 221
- a second load chamber flange 224 bent inward in the vehicle width direction from the front end of the second load chamber wall 222 to the inner end 208a of the second chamber wall 208.
- the second cargo chamber side outer panel 204 is divided into the second upper cargo chamber panel 226 (inner panel) and the second cargo chamber panel 231 in the longitudinal direction of the closed cross-sectional frame portion 201 (arrow O direction (see FIG. 25)). It is done.
- the second upper loading chamber panel 226 has a second upper loading chamber dividing portion (inner panel) 227 at the lower end.
- the second loading chamber panel 231 has a second loading chamber dividing portion 232 at its upper end.
- the second loading space division part 232 is overlapped with the second loading space division part 227 from the loading space 192 side.
- the second upper car compartment divided part 215 of the second upper car compartment panel 211 is overlapped with the second lower car compartment divided part 215 of the second lower car compartment panel 214 from the car room 191 side, so that the second upper car compartment divided part A passenger compartment overlapping part 217 is formed by the part 212 and the second passenger compartment division part 215.
- a cabin overlap portion 217 is joined by MIG welding at a joint portion 218.
- the second upper cabin panel 211 and the second lower cabin panel 214 are joined to form the second cabin outer panel 203.
- the second casing flange 209 and the first outer panel 202 of the second casing outer panel 203 are joined by spot welding at a joint 219.
- the second lower loading chamber divided portion 232 of the second lower loading chamber panel 231 is overlapped with the second upper loading chamber divided portion 227 of the second upper loading chamber panel 226 from the loading chamber 192 side, so that the second upper loading chamber A cargo compartment overlapping part 234 is formed by the division part 227 and the second loading compartment division part 232.
- the inner overlapping portion 235 inside the loading chamber 192 of the loading chamber overlapping portion 234 is joined by MIG welding at a joining portion 236.
- the rear overlapping portion 237 on the rear side of the loading chamber 192 in the loading chamber overlapping portion 234 is joined by the foamable adhesive 16.
- the second upper cargo chamber panel 226 and the second lower cargo chamber panel 231 are joined to form the second cargo chamber side outer panel 204.
- the second load chamber rear flange 223 of the second load chamber side outer panel 204 and the first outer panel 202 are joined by spot welding at a joining portion 241.
- the second load chamber flange 224 of the second load chamber side outer panel 204 and the inner end portion 208 a of the second vehicle room side outer panel 203 (specifically, the second vehicle chamber wall portion 208) It is joined by spot welding.
- a closed cross section frame portion 201 is formed by joining and assembling the first outer panel 202, the second vehicle room outer panel 203, and the second load room outer panel 204.
- the rear overlap portion 237 is a portion facing the rear side of the loading chamber 192.
- MIG welding it is difficult to carry in a tool for MIG welding to the rear overlap portion 237.
- the rear overlapping portion 237 is joined by the foamable adhesive 16.
- the rear overlapping portion 237 is an upper rear portion 227a on the rear side of the loading chamber 192 of the second upper loading chamber dividing portion 227 and a lower rear portion 232a on the rear side of the loading chamber 192 of the second loading chamber dividing portion 232.
- a recess 245 is formed in the upper back portion 227a.
- the recess 245 is formed concave toward the center of the closed cross section 206 such that the bottom 245a is separated from the lower back portion 232a. Thereby, a gap 248 is formed between the recess 245 (in particular, the bottom 245 a of the recess 245) and the lower rear portion 232 a.
- a through hole 246 is formed in a circular arc shape at the bottom 245 a of the recess 245, and the foamable adhesive 16 is inserted into the through hole 246 from the rear side of the loading chamber 192 as shown by arrow P.
- the foamable adhesive 16 is temporarily fixed to the recess 245 (specifically, the bottom 245a).
- the foamable adhesive 16 is foamed by heating, and the gap 248 is filled with the foamable adhesive portion 55 of the foamed foamable adhesive 16.
- the foamed expandable adhesive portion 55 is adhered to the recess 245 and the lower back portion 232a.
- the recess 245 is formed in the upper rear portion 227a.
- the upper back portion 227a and the lower back portion 232a are joined by joining the recessed portion 245 and the lower back portion 232a with the foamable adhesive portion 55 which is foamed.
- the second upper loading chamber divided portion 227 and the second lower loading chamber divided portion 232 of the second loading chamber side outer panel 204 are reinforced by the rear overlapping portion 237, and the rigidity and strength of the closed cross section frame portion 201 are enhanced. .
- a through hole 246 is formed in the concave portion 245 of the upper rear portion 227a of the second upper load chamber division portion 227.
- the temporary fixing portion 51 of the foamable adhesive 16 is inserted into the through hole 246 from the rear side of the loading chamber 192 as shown by arrow Q.
- the foamable adhesive 16 is temporarily fixed to the recess 245.
- the second loading chamber divided portion 232 is superimposed on the second upper loading chamber divided portion 227 as shown by an arrow R.
- the casing overlapping parts 217 of the second under car compartment divided part 215 and the second upper car compartment divided part 212 are joined by MIG welding at the joint part 218.
- the second casing flange 209 and the first outer panel 202 are joined by spot welding at a joint 219.
- the inner overlapping portion 235 inside the loading chamber 192 among the loading chamber overlapping portions 234 of the second upper loading chamber divided portion 227 and the second lower loading chamber dividing portion 232 is joined by MIG welding at the joining portion 236.
- the second load chamber rear flange 223 and the first outer panel 202 are joined by spot welding at the joint portion 241.
- the second load chamber flange 224 and the inner end portion 208 a of the second casing wall portion 208 are joined by spot welding at the joint portion 242.
- the upper rear portion 227a and the lower rear portion 232a of the rear overlapping portion 237 are portions which are difficult to join by MIG welding or the like. Therefore, the foamable adhesive 16 is temporarily fixed to the recess 245 of the upper rear portion 227a, and the rear overlapping portion 237 is joined by the foamable adhesive 16.
- the foamable adhesive 16 is foamed by heating, and the gap 248 is filled with the foamable adhesive portion 55 of the foamed foamable adhesive 16. Therefore, the upper back portion 227a and the lower back portion 232a (that is, the rear overlapping portion 237) are formed by joining the concave portion 245 and the lower rear portion 232a (that is, the rear overlapping portion 237) with the foamed expandable adhesive portion 55. Are joined. Thus, even when it is difficult to join the rear overlap portion 237 by MIG welding or the like, the rear overlap portion 237 can be joined by the foamable adhesive 16. As a result, the first outer panel 202, the second vehicle room side outer panel 203, and the second load room side outer panel 204 can be firmly assembled, and the rigidity of the closed cross section frame portion 201 can be secured.
- the present invention is not limited thereto. It is also possible to form a gap between the rear overlapping portions 237. Alternatively, it is also possible to form a gap between the rear overlapping portions 237 by separating the upper rear portion 227a from the lower rear portion 232a.
- the vehicle frame structure according to the present invention is not limited to the above-described embodiment, and appropriate changes, improvements, and the like can be made.
- the shapes and configurations of the second cabin side outer panel, the second loading room side outer panel, the second upper and lower compartment dividing parts, the compartment overlapping parts, the second upper and lower loading compartment parts and the loading compartment overlapping parts are illustrated.
- the present invention is not limited to the above, and can be changed as appropriate.
- the present invention is suitable for application to a vehicle having a vehicle body frame structure in which a closed cross-sectional frame is formed by a plurality of outer panels and the inner panel is provided in the closed cross-section of the closed cross-sectional frame.
- Body frame structure 11 135, 201: Closed cross section frame 12, 136, 206 ... Closed section 14, 227 ... Inner panel 16, 74, 80, 86, 93, 107, 125 ... Foamable adhesive 21, 31, 151, 202, 203, 204 ... First and second outer panels ( Multiple outer panels) 38, 62, 104, 182, 246: through holes 43a; portions facing the foamable bonding portion 45, 184, 188, 248: gaps 51, 75, 81, 87, 94, 108, 118, 126; ... Foamable bonding portion 55b ...
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Abstract
Description
ここで、車体骨格構造の剛性・強度を確保するためには、内パネルを閉断面枠部に複数箇所で接合することが好ましい。しかし、内パネルが閉断面枠部の閉断面内に設けられている。
しかし、ミグ溶接は、車体骨格構造の用途によっては、溶接ワイヤを所定の溶接箇所に移動することが難しいことが考えられる。さらに、ボルト・ナットは、内パネルや閉断面枠部の組付公差(精度)が要求され、作業性の低下が考えられる。
この発泡性接着体を用いることにより内パネルを閉断面枠部に接着することが考えられる。
よって、車体骨格構造を組み付ける際に、内パネルと閉断面枠部との間に発泡性接着体を配置することが難しく、発泡性接着体を配置する技術の実用化が望まれていた。
そこで、請求項1において、残りの外パネル(すなわち、閉断面枠部)と内パネルとの間に隙間を設定して隙間に発泡性接着体を備えるようにした。
これにより、内パネルおよび閉断面枠部を発泡性接着体を介して接合することができる。
これにより、発泡性接着体の発泡性接着部を、内パネルおよび閉断面枠部間に設定された隙間に簡単に備えることができる。
これにより、発泡性接着部に対峙する部位を、発泡した発泡性接着部で一層強固に接着することができ、閉断面枠部および内パネルの接合強度をさらに高めることができる。
よって、差込側の反対側において仮止部を発泡させることができる。これにより、差込側の反対側を、発泡した仮止部で強固に接着することができ、閉断面枠部および内パネルの接合強度を一層高めることができる。
よって、閉断面枠部および内パネル間において荷重を好適に伝達できる。これにより、閉断面枠部の閉断面が変形することを内パネルで防ぐことができ、閉断面枠部の剛性・強度を内パネルで高めることができる。
これにより、仮止部(すなわち、発泡性接着体)を、閉断面枠部、内パネルの一方に仮止めする作業性を高めることができる。
これにより、差込部を貫通孔に対応させて縮径させることができ、仮止部を貫通孔に一層容易に差し込むことができる。
これにより、差込部を貫通孔に対応させて縮径させることができ、仮止部を貫通孔に一層容易に差し込むことができる。
これにより、嵌入部を貫通孔に対応させて縮径させることができるので、貫通孔の孔径を小さくしても差込部を貫通孔に一層容易に差し込むことができる。貫通孔の孔径を小さく抑えることにより、閉断面枠部、内パネルの一方の剛性・強度を高めることができる。
さらに、嵌入部を貫通孔に対応させて縮径させることにより貫通孔の加工公差を吸収できる。これにより、仮止部を貫通孔に差し込む作業をさらに容易におこなうことができる。
さらに、貫通孔に差し込まれた仮止部に係止片を当接させることができる。これにより、貫通孔から仮止部が抜け出すことを係止片で防止でき、仮止部を貫通孔に確実に仮止めできる。
これにより、発泡性接着体を閉断面枠部、内パネルの一方に容易に取り付けることができ、かつ、発泡性接着体を閉断面枠部、内パネルの一方に確実に仮止めできる。
これにより、内パネルを閉断面枠部に接合する部位を増すことができ、閉断面枠部の閉断面が変形することを遮蔽壁で一層好適に防ぐことができる。
よって、重なり部(すなわち、分割部)を発泡性接着体で接着させることができる。これにより、第2外パネル(すなわち、閉断面枠部)の分割部を重なり部で補強でき、閉断面枠部の剛性・強度を高めることができる。
図1に示すように、車体骨格構造10は、略矩形状の枠体に形成された閉断面枠部11と、閉断面枠部11の閉断面12内に配置された内パネル14と、内パネル14および閉断面枠部11を接着する発泡性接着体16とを備えている。
閉断面枠部11は、断面略ハット状に形成された第1外パネル21と、第1外パネル21に接合される第2外パネル31とを備えている。
第1壁部22は、水平に延びることにより平坦状に形成されている。第1左折曲部23は、第1壁部22の左端部から下方に向けて延びるように折り曲げられている。第1右折曲部24は、第1壁部22の右端部から下方に向けて延びるように折り曲げられている。
第1左フランジ25は、第1左折曲部23の下端部から左方向に張り出されるように折り曲げられている。第1右フランジ26は、第1右折曲部24の下端部から右方向に張り出されるように折り曲げられている。
第2左フランジ35は、第2左折曲部33の上端部から左方向に張り出されるように折り曲げられている。第2右フランジ36は、第2右折曲部34の上端部から右方向に張り出されるように折り曲げられている。
第2壁部32、第2左折曲部33および第2右折曲部34で断面略U字状の部位が形成されている。また、第2壁部32、第2左折曲部33、第2右折曲部34、第2左フランジ35および第2右フランジ36で第2外パネル31が断面略ハット状に形成されている。
閉断面枠部11の内部に閉断面12が形成されている。具体的には、閉断面12は、第1壁部22、第1左折曲部23、第1右折曲部24、第2壁部32、第2左折曲部33および第2右折曲部34で略矩形状に形成されている。
内パネル14は、第1壁部22および第2壁部32間に上下方向に延ばされた遮蔽壁41と、遮蔽壁41の上端部から第1壁部22に沿って右方向に延びる上接合片42と、遮蔽壁41の下端部から第2壁部32に沿って右方向に延びる下接合片43とを有する。
第2壁部32および下接合片43間に隙間45を設定した理由は以下の通りである。
この接合工程において、内パネル14の下接合片43が第2外パネル31の第2壁部32に干渉することが考えられる。そこで、第2壁部32に下接合片43が干渉することを避けるために、第2壁部32と下接合片43との間に隙間45を設定するようにした。
そこで、隙間45を発泡性接着体16の発泡性接着部55で埋めて、発泡性接着部55で第2壁部32および下接合片43を接合するようにした。
なお、想像線で示す発泡性接着体16は、発泡前の状態の発泡性接着体16を示す。
発泡性接着体16が想像線で示す状態から発泡することにより、発泡された発泡性接着体16の発泡性接着部55で隙間45が埋められる。これにより、第2壁部32と下接合片43とが発泡性接着部55で接合されている。
この発泡性接着体16は、仮止部51および発泡性接着部55が発泡性接着剤で一体に形成されている。
これにより、仮止部51(すなわち、発泡性接着体16)を第2壁部32に仮止めする作業性を高めることができる。
嵌入部53が貫通孔38に嵌入された状態において、発泡性接着部55および基部52aで第2壁部32が挟み込まれる。これにより、仮止部51(具体的には、発泡性接着体16)が第2壁部32に仮止めされている。
よって、第2壁部32の表面32a側において仮止部51を発泡させることができる。これにより、第2壁部32の表面32a側を、発泡した仮止部51で強固に接着することができ、第2壁部32および下接合片43の接合強度を一層高めることができる。
よって、閉断面枠部11および内パネル14間において荷重を好適に伝達できる。これにより、閉断面枠部11の閉断面12が変形することを内パネル14で防ぐことができ、閉断面枠部11の剛性・強度を内パネル14で高めることができる。
図5(a)に示すように、第1外パネル21の第1壁部22に内パネル14の上接合片42を当接し、第1壁部22および上接合片42をスポット溶接で接合する。
さらに、第2外パネル31(具体的には、第2壁部32)の貫通孔38に発泡性接着体16の仮止部51を矢印Aの如く差し込み、嵌入部53を貫通孔38に嵌入させる。よって、第2壁部32に発泡性接着体16を予め仮止めすることができる。
さらに、第2壁部32および下接合片43間に隙間45が確保され、隙間45に発泡性接着体16の発泡性接着部55が配置される。
このように、第2壁部32に発泡性接着体16を予め仮止めすることより、発泡性接着体16の発泡性接着部55を、第2壁部32および下接合片43間の隙間45に簡単に配置することができる。
このように、第2壁部32および下接合片43間に隙間45が設定されるために、ミグ溶接やボルト・ナットによる接合が難しい部位を、発泡性接着部55で接合することができる。これにより、車体骨格構造10の剛性・強度を好適に確保することができる。
まず、実施例2~実施例10を図6~図15に基づいて説明する。
図6、図7に示すように、実施例2の車体骨格構造60は、実施例1の発泡性接着体16を内パネル14の下接合片43に仮止めするように構成したもので、その他の構成は実施例1の車体骨格構造10と同様である。
このように、下接合片43に発泡性接着体16を予め仮止めすることより、発泡性接着体16の発泡性接着部55を、第2壁部32および下接合片43間の隙間45に簡単に配置することができる。
これにより、車体骨格構造60は、実施例1の車体骨格構造10と同様に、剛性・強度が好適に確保される。
図8に示すように、実施例3の車体骨格構造70は、実施例1の内パネル14に案内孔72を形成したもので、その他の構成は実施例1の車体骨格構造10と同様である。
内パネル14は、下接合片43に案内孔72が形成されている。案内孔72は、下接合片43のうち発泡性接着部55に対峙する部位43aに配置されている。
これにより、発泡性接着部55に対峙する部位43aを、発泡した発泡性接着部55で一層強固に接着することができ、閉断面枠部11および内パネル14の接合強度をさらに高めることができる。
図9に示すように、実施例4の発泡性接着体74は、実施例1の発泡性接着体16に溝部77を形成したもので、その他の構成は実施例1の発泡性接着体16と同様である。
発泡性接着体74は、仮止部75に溝部77が形成されている。溝部77は、差込部76の先端部76aで開口され、差込部76の基部76bに向けて発泡性接着体74の軸線78方向に延長されている。
すなわち、発泡性接着体74を第2壁部32に仮止めする作業性を高めることができる。
図10に示すように、実施例5の発泡性接着体80は、実施例1の発泡性接着体16に複数の溝部83を形成したもので、その他の構成は実施例1の発泡性接着体16と同様である。
すなわち、発泡性接着体80を第2壁部32に仮止めする作業性を高めることができる。
図11に示すように、実施例6の発泡性接着体86は、実施例1の発泡性接着体16にスリット部89を形成したもので、その他の構成は実施例1の発泡性接着体16と同様である。
スリット部89の下端部89aが差込部88の先端部88a近傍に形成され、差込部88の先端部88aが凸形湾曲面状(球面状)に形成されている。また、スリット部89の上端部89bが差込部88の基部88b近傍に形成され、嵌入部53まで延びている。
差込部88の先端部88aが凸形湾曲面状に形成されることにより、差込部88の先端部88aを貫通孔38に容易に差し込むことができる。
すなわち、発泡性接着体86を第2壁部32に仮止めする作業性を高めることができる。
図12に示すように、実施例7の発泡性接着体93は、実施例1の発泡性接着体16に複数のスリット部96を形成したもので、その他の構成は実施例1の発泡性接着体16と同様である。
また、各スリット部96の下端部96aが差込部95の先端部95a近傍に形成され、差込部95の先端部95aが凸形湾曲面状(球面状)に形成されている。よって、差込部95の先端部95aを貫通孔38に容易に差し込むことができる。
これにより、嵌入部53を貫通孔38に対応させて縮径させることができるので、貫通孔38の孔径を小さくしても仮止部94を貫通孔38に容易に差し込むことができる。
さらに、嵌入部53を貫通孔38に対応させて縮径させることにより、貫通孔38に対する発泡性接着体93の抜止めが一層良好に可能となり、かつ、発泡性接着体93のガタツキを防止できる。
図13(a),(b)に示すように、実施例8の車体骨格構造100は、実施例1の第2外パネル31および発泡性接着体16を第2外パネル102および発泡性接着体107に代えたもので、その他の構成は実施例1の車体骨格構造10と同様である。
発泡性接着体107は、仮止部108および発泡性接着部55でクリップ状に形成されている。
また、係止片105を弾性変形させて貫通孔104に仮止部108を差し込むように構成することにより、仮止部108(すなわち、発泡性接着体107)を硬質の発泡性接着剤で形成することが可能になる。
これにより、車体骨格構造100は、実施例1の車体骨格構造10と同様に、剛性・強度が好適に確保される。
図14(a),(b)に示すように、実施例9の車体骨格構造110は、実施例1の第2外パネル31および発泡性接着体16を第2外パネル112および発泡性接着体117に代えたもので、その他の構成は実施例1の車体骨格構造10と同様である。
発泡性接着体117は、仮止部118および発泡性接着部119が側面視略U字形のクリップ状に形成され、仮止部118および発泡性接着部119間にクリップ隙間123が確保されている。クリップ隙間123に第2外パネル112の第2壁部113が嵌入されることにより、第2壁部113が仮止部118および発泡性接着部119で挟み込まれる。
発泡性接着部119は、仮止部118に対峙する面119aから仮止部118に向けて爪部121が突出されている。
これにより、仮止部118(すなわち、発泡性接着体117)を硬質の発泡性接着剤で形成することが可能になる。
これにより、車体骨格構造110は、実施例1の車体骨格構造10と同様に、剛性・強度が好適に確保される。
また、実施例9では、発泡性接着部119に爪部121を設けた例について説明したが、これに限らないで、仮止部118に爪部121を設けることも可能である。
図15(a)に示すように、実施例10の発泡性接着体125は、仮止部126および発泡性接着部127がそれぞれ別部材で形成されている。
これにより、第2壁部32の貫通孔38に仮止部126を容易に差し込むことができ、発泡性接着体125を第2壁部32に仮止めする作業性を高めることができる。
発泡性接着剤は、金属接着性樹脂を主成分とし、加熱により発泡することにより、第2壁部32および下接合片43に接着し、かつ、高剛性となる特性を備える成形組成物である。
図16に示すように、車体側部130は、車室131の床部がフロアパネル132で形成され、フロアパネル132の側部が車体骨格構造134で支えられている。車体骨格構造134は、車体側部130の下部を補強することにより車体側部130の剛性・強度を確保するためのサイドシルである。
車体骨格構造134の前端部からフロントピラー137が立設されている。車体骨格構造134の中央部からセンタピラー138が立設されている。
閉断面枠部135は、断面略ハット状に形成された第1外パネル141と、第1外パネル141に接合される第2外パネル151とを備えている。
第1壁部142は、上下方向に延びることにより平坦状に立設されている。第1上折曲部143は、第1壁部142の上端部から外方に向けて延びるように折り曲げられている。第1下折曲部144は、第1壁部142の下端部から外方に向けて延びるように折り曲げられている。
第1上フランジ145は、第1上折曲部143の外端部から上方に向けて張り出されるように折り曲げられている。第1下フランジ146は、第1下折曲部144の外端部から下方に向けて張り出されるように折り曲げられている。
第2上フランジ155は、第2上折曲部153の内端部から上方に向けて張り出されるように折り曲げられている。第2下フランジ156は、第2下折曲部154の内端部から下方に向けて張り出されるように折り曲げられている。
閉断面枠部135の内部に閉断面136が形成されている。具体的には、閉断面136は、第1壁部142、第1上折曲部143、第1下折曲部144、第2壁部152、第2上折曲部153および第2下折曲部154で略矩形状に形成されている。
凹部181の底部181aに貫通孔182が円弧状に形成され、貫通孔182に発泡性接着体16が車外側から矢印Lの如く差し込まれている。発泡性接着体16が貫通孔182に差し込まれることにより、凹部181(具体的には、底部181a)に発泡性接着体16が仮止めされている。
さらに、凹部181および第2壁部152を発泡性接着部55で接合することにより、第4内パネル164を閉断面枠部135に接合する部位を、スポット溶接の接合部位に加えて増すことができる。
これにより、閉断面枠部135の閉断面136が変形することを遮蔽壁171(すなわち、第4内パネル164)で好適に防ぐことができ、車体骨格構造(すなわち、サイドシル)134の剛性・強度を好適に確保できる。
第2内パネル162および第3内パネル163は、第2接合片186が第4内パネル164と異なるだけで、他の部位が第4内パネル164と類似している。よって、以下、第2内パネル162および第3内パネル163の第2接合片186について説明して他の部位の説明を省略する。
これにより、第2内パネル162および第3内パネル163で車体骨格構造(すなわち、サイドシル)134の剛性・強度を好適に確保できる。
第1内パネル161も、第2~第4の内パネル162~164と同様に、車体骨格構造(すなわち、サイドシル)134の剛性・強度を好適に確保できる。
図21(a)に示すように、第1外パネル141の第1壁部142に第4内パネル164の第5接合片176をスポット溶接で接合する。また、第1上折曲部143に第6接合片177をスポット溶接で接合する。さらに、第1下折曲部144に第4接合片175をスポット溶接で接合する。
また、第2接合片173の凹部181に形成された貫通孔182に発泡性接着体16の仮止部51を矢印Mの如く差し込み、凹部181に発泡性接着体16を予め仮止めする。
これにより、第1外パネル141および第2外パネル151で閉断面枠部135が形成され、閉断面枠部135の内部に閉断面136が形成される。
これにより、車体骨格構造(すなわち、サイドシル)134の剛性・強度を好適に確保することができる。
あるいは、第2接合片173を第2壁部152から離すことにより第2接合片173および第2壁部152間に隙間を形成することも可能である。
図23、図24に示すように、車体後部190は、車室191の床部がフロアパネル193で形成され、フロアパネル193の後端部193aが車体骨格構造195で支えられている。車体骨格構造195は、車体後部190を補強することにより車体後部190の剛性・強度を確保するためのリヤバルクヘッドである。
車体骨格構造195の車体前方にサイドシル197が設けられ、車体骨格構造195の車体後方にリヤフロアフレーム198が設けられている。
閉断面枠部201は、フロアパネル193の後端部193aに沿ってホイールハウス194まで車幅方向左側に延出され、さらにホイールハウス194に沿って上方に延出されることにより正面視略L字状に形成されている。
第1外パネル202、第2車室側外パネル203および第2荷室側外パネル204(即ち、複数の外パネル)が接合されて組み付けられることにより、閉断面枠部201の内部に閉断面206が略矩形状に形成されている。
第2車室側外パネル203は、正面視略L字状に延長され(図25も参照)、断面略平坦状に形成されている。第2車室側外パネル203は、車室191側に対峙する第2車室壁部208と、第2車室壁部208の外端部から第1外パネル202に沿って車体前方に折り曲げられた第2車室フランジ209とを有する。
第2下車室分割部215に第2上車室分割部212が車室191側から重ね合わされている。
第2荷室側外パネル204は、荷室192の車体後方側に対峙する第2荷室後壁部221と、第2荷室後壁部221の内端部から車体前方側に折り曲げられて荷室192の内側に対峙する第2荷室内壁部222と、第2荷室後壁部221の外端部から第1外パネル202に沿って車体後方に折り曲げられた第2荷室後フランジ223と、第2荷室内壁部222の前端部から第2車室壁部208の内端部208aに沿って車幅方向内側に折り曲げられた第2荷室内フランジ224とを有する。
第2上荷室分割部227に第2下荷室分割部232が荷室192側から重ね合わされている。
これにより、第2上車室パネル211および第2下車室パネル214が接合されて第2車室側外パネル203が形成されている。第2車室側外パネル203の第2車室フランジ209および第1外パネル202が接合部219においてスポット溶接により接合されている。
荷室重なり部234のうち荷室192内側の内重なり部235が接合部236においてミグ溶接により接合されている。また、荷室重なり部234のうち荷室192後側の後重なり部237が発泡性接着体16で接合されている。
また、第2荷室側外パネル204の第2荷室内フランジ224および第2車室側外パネル203(具体的には、第2車室壁部208)の内端部208aが接合部242においてスポット溶接により接合されている。
第1外パネル202、第2車室側外パネル203および第2荷室側外パネル204が接合されて組み付けられることにより閉断面枠部201が形成されている。
上後部位227aに凹部245が形成されている。凹部245は、底部245aが下後部位232aから離れるように閉断面206の中心に向けて凹状に形成されている。これにより、凹部245(特に、凹部245の底部245a)および下後部位232a間に隙間248が形成されている。
この状態において、発泡性接着体16が加熱により発泡し、発泡した発泡性接着体16の発泡性接着部55で隙間248が埋められる。発泡した発泡性接着部55が凹部245および下後部位232aに接着される。ここで、凹部245が上後部位227aに形成されている。
図28(a)に示すように、第2上荷室分割部227の上後部位227aの凹部245に貫通孔246が形成されている。この貫通孔246に発泡性接着体16の仮止部51を荷室192後側から矢印Qの如く差し込む。仮止部51が貫通孔246に差し込まれることにより、凹部245に発泡性接着体16が仮止めされる。
凹部245に発泡性接着体16が仮止めされた状態で、第2上荷室分割部227に第2下荷室分割部232を矢印Rの如く重ね合わせる。
さらに、第2上荷室分割部227および第2下荷室分割部232の荷室重なり部234のうち荷室192内側の内重なり部235を接合部236においてミグ溶接で接合する。また、第2荷室後フランジ223および第1外パネル202を接合部241においてスポット溶接で接合する。
さらに、第2荷室内フランジ224および第2車室壁部208の内端部208aを接合部242においてスポット溶接で接合する。
このように、後重なり部237がミグ溶接などで接合することが困難な場合でも、後重なり部237を発泡性接着体16で接合することができる。これにより、第1外パネル202、第2車室側外パネル203および第2荷室側外パネル204を強固に組み付けることができ、閉断面枠部201の剛性を確保できる。
あるいは、上後部位227aを下後部位232aから離すことにより後重なり部237間に隙間を形成することも可能である。
例えば、前記実施例1~12で示した車体骨格構造、閉断面枠部、閉断面、内パネル、発泡性接着体、第1、第2の外パネル、貫通孔、隙間、仮止部、差込部、嵌入部、発泡性接着部、案内孔、溝部、スリット部、係止片、係合孔、第1~第4の内パネル、遮蔽壁、第1~第6の接合片、凹部、第2車室側外パネル、第2荷室側外パネル、第2上下の車室分割部、車室重なり部、第2上下の荷室分割部および荷室重なり部などの形状や構成は例示したものに限定するものではなく適宜変更が可能である。
11,135,201…閉断面枠部
12,136,206…閉断面
14,227…内パネル
16,74,80,86,93,107,117,125…発泡性接着体
21,31,102,112,141,151,202,203,204…第1、第2の外パネル(複数の外パネル)
38,62,104,182,246…貫通孔
43a…発泡性接着部に対峙する部位
45,184,188,248…隙間
51,75,81,87,94,108,118,126…仮止部
52,76,82,88,95…差込部
53…嵌入部
55,119,127…発泡性接着部
55b…発泡性接着部のうち下接合片に対向する面(閉断面枠部、内パネルの他方に対向する面)
72…案内孔
52b,76a,82a,88a,95a…差込部の先端部
52a,76b,82b,88b…差込部の基部
77,83…溝部
89,96…スリット部
105…係止片
115…係合孔
135a…閉断面枠部の内面
161~164…第1~第4の内パネル(内パネル)
171…遮蔽壁
171a…遮蔽壁の外周縁
172~177,186…第1~第6の接合片(接合片)
181,187,245…凹部
203…第2車室側外パネル(第2外パネル)
204…第2荷室側外パネル(第2外パネル)
212,215…第2上下の車室分割部(分割部)
217…車室重なり部(重なり部)
227…第2上荷室分割部(分割部、内パネル)
232…第2下荷室分割部(分割部)
234…荷室重なり部(重なり部)
Claims (13)
- 複数の外パネルが溶接されることにより閉断面を有する閉断面枠部が形成され、前記閉断面内に配置された内パネルが前記閉断面枠部に設けられる車体骨格構造において、
前記内パネルおよび前記閉断面枠部間に隙間が設定され、
該隙間に前記内パネルおよび前記閉断面枠部を接着した発泡性接着体が設けられる、ことを特徴とする車体骨格構造。 - 前記発泡性接着体は、
前記閉断面枠部、前記内パネルの一方に仮止めする仮止部と、
該仮止部に設けられ、前記内パネルおよび前記閉断面枠部を接着する発泡性接着部と、
を備える、請求項1記載の車体骨格構造。 - 前記閉断面枠部、前記内パネルの他方で、かつ、前記発泡性接着部に対峙する部位に案内孔を備える、請求項2記載の車体骨格構造。
- 前記発泡性接着体は、
前記仮止部および前記発泡性接着部が、前記内パネル、前記閉断面枠部を接着可能な発泡性接着剤で一体に形成された、請求項2または請求項3記載の車体骨格構造。 - 前記発泡性接着剤は、
金属接着性樹脂を主成分とし、加熱により発泡することにより、前記内パネルおよび前記閉断面枠部に接着し、かつ、高剛性となる特性を備える成形組成物である、請求項4記載の車体骨格構造。 - 前記閉断面枠部、前記内パネルの一方に形成され、前記仮止部が差し込まれる貫通孔を備え、
前記仮止部は、
前記貫通孔に差込可能に、先端部に向けて縮径する差込部と、
該差込部の基部に設けられ、前記貫通孔に嵌入可能に凹状に形成された嵌入部と、を備え、
該嵌入部が前記貫通孔に嵌入されることにより前記仮止部が前記閉断面枠部、前記内パネルの一方に仮止めされる、請求項2記載の車体骨格構造。 - 前記仮止部は、
前記差込部の先端部で開口され、前記差込部の基部に向けて延びる溝部を少なくとも1つ有する、請求項6記載の車体骨格構造。 - 前記仮止部は、
前記発泡性接着体の軸線方向に延び、かつ、前記発泡性接着体の軸線方向に対して直交する方向に開口されたスリット部を少なくとも1つ有する、請求項6記載の車体骨格構造。 - 前記スリット部は、
前記発泡性接着体のうち前記閉断面枠部、前記内パネルの他方に対向する面が開口するように前記発泡性接着部まで延長された、請求項8記載の車体骨格構造。 - 前記閉断面枠部、前記内パネルの一方は、
前記貫通孔に差し込まれる前記仮止部に当接した状態で変形可能な係止片を有する、請求項6記載の車体骨格構造。 - 前記発泡性接着体は、
前記仮止部および前記発泡性接着部が、前記閉断面枠部、前記内パネルの一方を挟み込むように側面視略U字状に形成され、
前記仮止部、前記発泡性接着部の一方に設けられた爪部を有し、
前記閉断面枠部、前記内パネルの一方を前記発泡性接着体で挟み込んだ状態において、前記閉断面枠部、前記内パネルの一方に形成された係合孔に爪部が係合する、請求項4記載の車体骨格構造。 - 前記内パネルは、
前記閉断面枠部の長手方向と直交し、かつ、前記閉断面枠部の内面に沿って形成された外周縁を有する遮蔽壁と、
該遮蔽壁の外周縁から前記閉断面枠部の内面に沿って張り出された接合片と、を有し、
該接合片および前記閉断面枠部間に前記隙間を形成するために、前記接合片、前記閉断面枠部の一方に他方から離れるように凹む凹部が形成される、請求項1~11のいずれか1項記載の車体骨格構造。 - 前記複数の外パネルは、第1外パネルと、少なくとも2つの第2外パネルとを備え、
前記第1外パネルに少なくとも2つの第2外パネルが組み付けられることにより、車体骨格となる前記閉断面枠部が形成され、
前記少なくとも2つの第2外パネルが前記閉断面枠部の長手方向において分割されることにより各第2外パネルに分割部を有し、
該分割部が重ね合わされる重なり部を有し、
該重なり部間に前記隙間が設定され、
該隙間に前記重なり部を接着する前記発泡性接着体を備えた、請求項1~11のいずれか1項記載の車体骨格構造。
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JP2018149912A (ja) * | 2017-03-13 | 2018-09-27 | 新日鐵住金株式会社 | 車両用構造部材 |
CN109229213A (zh) * | 2017-07-11 | 2019-01-18 | 现代自动车株式会社 | 用于车辆的中柱结构 |
CN109229213B (zh) * | 2017-07-11 | 2021-12-24 | 现代自动车株式会社 | 用于车辆的中柱结构 |
CN112249165A (zh) * | 2020-10-23 | 2021-01-22 | 浙江吉利控股集团有限公司 | 一种加强梁连接结构及其连接方法 |
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JP6441310B2 (ja) | 2018-12-19 |
US20170066485A1 (en) | 2017-03-09 |
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