WO2013150806A1 - 車体前部構造 - Google Patents
車体前部構造 Download PDFInfo
- Publication number
- WO2013150806A1 WO2013150806A1 PCT/JP2013/050098 JP2013050098W WO2013150806A1 WO 2013150806 A1 WO2013150806 A1 WO 2013150806A1 JP 2013050098 W JP2013050098 W JP 2013050098W WO 2013150806 A1 WO2013150806 A1 WO 2013150806A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dashboard
- vehicle body
- wall
- panel
- lower panel
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/14—Dashboards as superstructure sub-units
- B62D25/145—Dashboards as superstructure sub-units having a crossbeam incorporated therein
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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
- B62D25/081—Cowls
-
- 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
- B62D25/082—Engine 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
- B62D25/08—Front or rear portions
- B62D25/088—Details of structures as upper supports for springs or dampers
-
- 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
- B62D25/14—Dashboards as superstructure sub-units
-
- 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
- B62D25/16—Mud-guards or wings; Wheel cover panels
-
- 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
Definitions
- dashboard lower panels are joined to the left and right front pillars at the ends in the vehicle width direction, a dashboard upper panel is provided at the top of the dashboard lower panel, and left and right damper housings are provided in front of the dashboard lower panel.
- the vehicle body front structure is provided.
- the front structure of the vehicle body includes a dash panel that partitions the compartment and a space located in front of the compartment, a cowl member that spans between front pillars located on both sides of the vehicle width direction above the dash panel, and a vehicle vertical direction
- the upper end of the dash panel and the lower end of the cowl member in the vehicle vertical direction are connected to each other at both ends in the vehicle width direction in a forward leaning position in which the upper end of the vehicle is positioned forward of the vehicle longitudinal direction relative to the lower end.
- a connecting member is provided.
- the cowl member (dashboard upper panel) and the dashboard panel (dashboard lower panel) are connected via the connecting member at the end in the vehicle width direction. Restrictions on the shape and arrangement of the pillars are reduced (see, for example, Patent Document 1).
- An object of the present invention is to provide a vehicle body front structure that can reduce vibration transmitted to a dashboard lower panel and reduce room vibration. Furthermore, the subject of this invention is providing the vehicle body front part structure which can prevent reliably the water which permeates into a room
- a dashboard lower panel in which ends in the vehicle width direction are joined to the left and right front pillars, a dashboard upper panel provided at an upper portion of the dashboard lower panel, and a front of the dashboard lower panel
- the dashboard upper panel includes a front vertical wall extending substantially vertically in the vertical direction of the vehicle body, and a vehicle body from the lower end of the front vertical wall.
- a horizontal bottom wall extending substantially horizontally in the front-rear direction, and a rear inclined wall extending rearward from the rear end of the horizontal bottom wall toward the vehicle body, and the dashboard lower panel includes a vertical wall, An oblique flange formed at an upper end of the vertical wall, and the oblique flange is joined to a lower part of the rear inclined wall, and the dash Front body structure for supporting a substantially central longitudinal direction of the vehicle body of the board upper panel from below is provided.
- the dashboard lower panel includes a side edge flange joined to a front pillar inner panel of the front pillar, and the oblique flange is continuously connected to the side edge flange.
- An L-shaped waterproof wall is formed at the corner of the lower panel.
- the rear inclined wall abuts on the inclined flange.
- the front horizontal flange extending forward from the upper end of the front vertical wall is in contact with the rear wall and the upper wall of the damper housing.
- the dashboard upper panel includes a windshield lower support that supports a windshield, and the dashboard upper panel and the windshield lower support form an opening toward a front upper portion.
- the windshield lower support and the dashboard upper panel are inserted one of the sandwiched welding guns from the opening, sandwiched from the back of the rear inclined wall, and the other of the welding guns (98, 99) are brought close to each other,
- the rear inclined wall and the oblique flange are sandwiched and formed into a shape that can be welded.
- a wheel house that covers a wheel is provided below the damper housing, and both ends of the dashboard upper panel form a closed cross section by the dashboard lower panel, the damper housing, and the wheel house. is doing.
- a front portion of the front vertical wall and the horizontal bottom wall is disposed in a space portion formed to extend in the vehicle width direction by a cowl top provided in front of the upper portion of the dashboard upper panel.
- a cowl reinforcing member is formed which forms a closed cross section extending in the vehicle width direction at the portion, and the upper edge of the dashboard lower panel is joined along the rear inclined wall extending obliquely rearwardly toward the vehicle body upward.
- the dashboard lower panel has a brake master cylinder mounting portion for mounting a brake master cylinder
- the dashboard upper panel is located above the brake master cylinder mounting portion and the horizontal
- the bottom wall has a recess formed so as to be recessed upward
- the cowl reinforcing member is formed above the brake master cylinder mounting portion and is curved upward. In the width direction, it is divided into a linear part formed at a part away from the brake master cylinder mounting part and formed linearly, and the linear part is formed of a thinner plate than the curved part.
- the cowl reinforcing member is formed by bending a steel plate into an L shape to form a reinforcing portion upper wall and a reinforcing portion rear wall, and a front end flange extends from the reinforcing portion upper wall, A rear end flange extends from the rear wall of the reinforcing portion, the front end flange is coupled to the front vertical wall, and the rear end flange is coupled to the horizontal bottom wall to form the closed cross section.
- left and right damper housings for supporting the damper unit are provided in front of the dashboard lower panel, and both end portions of the cowl reinforcing member in the vehicle width direction are arranged on the dashboard upper side.
- a stiffener connected to the front vertical wall of the panel is connected to the upper wall of the damper housing via the stiffener.
- a cowl opening for reinforcing the dashboard upper panel having a U-shaped cross section is provided between the straight portion of the cowl reinforcing member and the rear inclined wall of the dashboard upper panel.
- a reinforcing member is coupled.
- a wiper mounting bracket to which a wiper motor is mounted is coupled between the curved portion of the cowl reinforcing member and the rear inclined wall of the dashboard upper panel.
- the dashboard lower panel includes a dashboard cross member provided to extend in the vehicle width direction on the indoor side, and the dashboard cross member and the dashboard lower panel have a closed cross section.
- the dashboard cross member is coupled to left and right wheel houses provided on the engine room side of the dashboard lower panel with the dashboard lower panel interposed therebetween.
- the dashboard lower panel has a wheel house portion that is increased in rigidity by being bulged to the indoor side and having a curved shape, and forms rear portions of the left and right wheel houses.
- the dashboard cross member is coupled to the wheel house portion.
- the dashboard lower panel includes, on one side of the vehicle body, an accelerator pedal bracket that supports an accelerator pedal, and a brake master cylinder mounting portion to which a brake master cylinder is mounted.
- the dashboard cross member has one end coupled to one of the left and right wheel houses via at least one of the accelerator pedal bracket and the brake master cylinder mounting portion.
- the dashboard lower panel includes a brake master cylinder mounting portion to which a brake master cylinder is mounted on the other side of the vehicle body
- the dashboard cross member includes the dashboard cross member.
- the dashboard lower panel includes a support bracket that supports an in-vehicle mounting part including a steering hanger and a foot parking pedal, and the dashboard cross member is attached to the dashboard upper panel. It is connected via a support bracket.
- vibration is generated in the damper housing due to the inclining of the damper housing during traveling, and the vibration is transmitted to the dashboard upper panel (cowl part) coupled to the damper housing.
- Vibration is transmitted from the panel (cowl part) to the dashboard lower panel, which is one of the causes of room noise. Therefore, a diagonal flange is joined to the lower part of the rear inclined wall, and the vertical wall supports the approximate center of the dashboard upper panel in the longitudinal direction of the vehicle body from below, improving the support of the dashboard upper panel and vibrating the dashboard upper panel. Was reduced.
- the vibration transmitted from the dashboard upper panel to the dashboard lower panel is reduced, and the indoor vibration can be reduced. As a result, the indoor quietness can be improved.
- the dashboard lower panel includes a side edge flange joined to the front pillar inner panel of the front pillar, and the oblique flange is formed in an L shape at the corner of the dashboard lower panel continuously with the side edge flange. Since the waterproof wall is formed, it is possible to reliably prevent water from entering the room from the dashboard upper panel.
- the dashboard upper panel includes a windshield lower support that supports the windshield.
- the dashboard upper panel and the windshield lower support form a cowl opening directed to the upper front.
- One of the sandwich welding guns is inserted from the cowl opening, the other of the sandwich welding guns is approached from the back of the rear inclined wall, and the rear inclined wall and the oblique flange are sandwiched and formed into a shape that can be welded.
- the dashboard upper panel can be pinched and welded for mass production. That is, the workability of welding the front part of the vehicle body can also be improved.
- the wheel house that covers the wheel is provided below the damper housing, and the closed cross section is formed at both ends of the dashboard upper panel by the dashboard lower panel, the damper housing, and the wheel house.
- the rigidity of the part can be improved.
- a space portion extending in the vehicle width direction is formed by a cowl top provided in front of the upper portion of the dashboard upper panel.
- the dashboard upper panel includes a front vertical wall extending in the vertical direction of the vehicle body, a horizontal bottom wall extending from the lower end of the front vertical wall in the vehicle front-rear direction, and a diagonal vehicle body from the rear end of the horizontal bottom wall toward the vehicle upper side. It is formed in a substantially U-shaped cross section from the rear inclined wall extending rearward.
- cowl reinforcing member that forms a closed cross section extending in the vehicle width direction together with the front vertical wall and the front portion of the horizontal bottom wall is provided in the space and between the front vertical wall and the front portion of the horizontal bottom wall, The vehicle body rigidity in the vehicle width direction can be improved. Further, since the cowl reinforcing member has a shape in which a closed cross section extending in the vehicle width direction is formed between the front vertical wall and the front portion of the horizontal bottom wall, the cowl reinforcing member can be formed in a simple shape and productivity is improved. improves.
- the upper edge of the dashboard lower panel is joined along the slanted wall after extending diagonally rearward toward the upper part of the vehicle body, so that the amount of protrusion of the dashboard lower panel to the engine room can be reduced, and maintenance of the engine room Can be improved. Furthermore, the vehicle interior space can be expanded. Furthermore, a deep space portion can be formed in the vertical direction. As a result, a sufficient amount of air sucked into the air conditioner can be secured.
- a brake master cylinder mounting portion for mounting the brake master cylinder is formed on the dashboard lower panel, and the dashboard upper panel is recessed above the brake master cylinder mounting portion and the bottom wall upward. Formed.
- the cowl reinforcing member is formed above the brake master cylinder mounting portion and is curved upward and formed at a portion deviating from the vicinity of the brake master cylinder mounting portion in the vehicle width direction and straight. It is divided into linear portions that are formed automatically. Since the straight portion has higher rigidity and strength than the curved portion, it can be formed of a thin plate, and the weight of the vehicle body can be reduced.
- the cowl reinforcing member is formed by bending the steel plate into an L shape to form the reinforcing portion upper wall and the reinforcing portion rear wall, the front end flange extending from the reinforcing portion upper wall, and from the reinforcing portion rear wall.
- the rear end flange is extended, the front end flange is coupled to the front wall, the rear end flange is coupled to the bottom wall, and a closed cross section is formed.
- left and right damper housings for supporting the damper unit are provided in front of the dashboard lower panel. Both ends of the cowl reinforcing member in the vehicle width direction are coupled to a stiffener coupled to the front vertical wall of the dashboard upper panel, and are coupled to the upper wall of the damper housing via the stiffener, so that the vehicle body rigidity is improved.
- the dashboard upper panel does not need to be bent forward toward the upper wall of the damper housing in order to be connected to the damper housing, it is possible to suppress a decrease in strength and rigidity of the dashboard upper panel itself, and easy to manufacture. It becomes.
- the cowl opening reinforcing member that reinforces the U-shaped dashboard upper panel is coupled between the straight portion of the cowl reinforcing member and the rear wall of the dashboard upper panel, The strength of the dashboard upper panel in the longitudinal direction of the vehicle body can be improved.
- the wiper mounting bracket to which the wiper motor is mounted is coupled between the curved portion of the cowl reinforcing member and the rear inclined wall of the dashboard upper panel.
- the curved portion of the cowl reinforcing member can also be strengthened. Thereby, it can also be expected that the thickness of the cowl reinforcing member is reduced.
- the dashboard lower member in the vehicle body front structure, is provided with a dashboard cross member extending in the vehicle width direction on the indoor side, and the dashboard cross member forms a closed cross section with the dashboard lower panel. Therefore, the vibration transmitted from the damper housing to the dashboard lower panel via the wheel house can be damped by the closed cross section formed by the dashboard cross member and the dashboard lower panel. Further, since the dashboard cross member is coupled to the wheel house with the dashboard lower panel interposed therebetween, vibration of the wheel house itself can be suppressed. That is, it is possible to reduce room noise by suppressing vibration transmission from the wheel house to the dashboard lower panel. As a result, the room can be quieted.
- the dashboard lower panel is provided with a wheel house part that is bulged indoors to have a curved shape and has increased rigidity, and the rear parts of the left and right wheel houses are respectively configured. Since the dashboard cross member is coupled to the rigid wheel house, for example, the dashboard cross member has a predetermined strength and rigidity at the front of the vehicle body without extending the dashboard cross member to the front pillar and coupling it to the front pillar. Can be secured. As a result, the dashboard cross member can be shortened to reduce the weight of the front part of the vehicle body, and the rigidity of the wheel house part itself can be enhanced and strengthened.
- the dashboard lower panel is provided on one side of the vehicle body with an accelerator pedal bracket for supporting the accelerator pedal and a brake master cylinder reinforcing plate to which the brake master cylinder is attached.
- the dashboard cross member has one end connected to one of the left and right wheel houses via at least one of the accelerator pedal bracket and brake master cylinder reinforcement plate, further reducing the dashboard cross member and reducing weight. Can be achieved.
- the dashboard lower panel is provided with a brake master cylinder reinforcing plate to which a brake master cylinder is attached on the other side of the vehicle body.
- a brake master cylinder reinforcing plate to which a brake master cylinder is attached on the other side of the vehicle body.
- the dashboard lower panel is provided with a dashboard upper panel provided on the upper portion of the dashboard lower panel, and a support bracket for supporting the in-vehicle mounting parts including the steering hanger and the foot parking pedal. Since the dashboard cross member is connected to the dashboard upper panel via the support bracket, the dashboard cross member is reinforced by the support bracket. As a result, the thickness of the dashboard cross member can be reduced, and the weight of the front vehicle body can be reduced.
- FIG. 5 is an enlarged cross-sectional view taken along line 5-5 in FIG.
- FIG. 6 is an enlarged sectional view taken along line 6-6 in FIG. It is the figure which expanded the area
- FIG. 9 is an enlarged cross-sectional view taken along line 9-9 in FIG. FIG.
- FIG. 7 is a view showing assembly of the dashboard lower panel, dashboard upper panel, and damper housing shown in FIG. 6. It is the figure which showed the state which joins the dashboard lower panel, dashboard upper panel, and damper housing which were shown by FIG. It is the figure which showed the welding state of the dashboard lower panel and dashboard upper panel which were shown by FIG. It is the perspective view which showed a part of vehicle body front part structure shown by FIG.
- FIG. 14 is an enlarged cross-sectional view taken along line 14-14 of FIG.
- FIG. 15 is an enlarged cross-sectional view taken along line 15-15 in FIG. It is a perspective view of the right end part of the vehicle body front part structure shown by FIG. It is a perspective view of the center part of the vehicle body front part structure shown by FIG.
- FIG. 19 is a perspective view of the left stiffener shown in FIG. 19 as viewed from below the front of the vehicle body.
- FIG. 20 is a perspective view of the left stiffener shown in FIG. 19 as viewed from above the front of the vehicle body.
- FIG. 2 is a perspective view of a right damper housing shown in FIG. 1. It is the perspective view which looked at the right stiffener shown by FIG. 22 from the vehicle body front lower part. It is the figure which showed the cowl box shown by FIG. FIG.
- FIG. 2 is a perspective view seen from the passenger compartment side through the dashboard lower panel of the vehicle body front structure shown in FIG. 1.
- FIG. 26 is an enlarged sectional view taken along line 26-26 in FIG. 25.
- FIG. 26 is an enlarged cross-sectional view taken along line 27-27 in FIG. 25.
- FIG. 28 is a cross-sectional view showing a coupling relationship between the dashboard cross member and the wheel house shown in FIG. 27.
- FIG. 30 is an enlarged view of a region 30 in FIG. 29. It is the figure which showed the connection relation of the dashboard cross member which looked at FIG. 30 from the arrow 31 direction, and the wheel house part of a dashboard lower panel.
- FIG. 26 is an enlarged sectional view taken along line 26-26 in FIG. 25.
- FIG. 26 is an enlarged cross-sectional view taken along line 27-27 in FIG. 25.
- FIG. 28 is a cross-sectional view showing a coup
- FIG. 30 is a perspective view enlarged through a dashboard lower panel in a region 32 in FIG. 29. It is a rear view of the vehicle body front part structure by the other Example of this invention.
- FIG. 34 is a perspective view that is enlarged through a dashboard lower panel on the right side of the vehicle body front structure shown in FIG. 33.
- FIG. 34 is a rear view in which a foot parking pedal is provided in the vehicle body front part structure shown in FIG. 33.
- the dashboard lower panel 18 is formed by joining an oblique flange 93 to the lower portion 43 a of the rear inclined wall 43 of the dashboard upper panel 31.
- the substantially center of the dashboard upper panel 31 in the front-rear direction of the vehicle body is supported from below, and the supportability of the dashboard upper panel 31 is enhanced.
- the vehicle body front part structure has an oblique flange 93 and a side edge flange 94 of the dashboard lower panel 18 that are continuous to form an L-shaped waterproof wall 95 at the corner 18 c of the dashboard lower panel 18.
- the waterproofness from the dashboard upper panel (cowl part) 31 is enhanced. Furthermore, the setability of the dashboard upper panel 31 is improved by using the oblique flange 93 of the dashboard lower panel 18.
- the vehicle 10 includes a left and right front side frames 15 extending in the front-rear direction of the vehicle body, a dashboard lower panel 18 that partitions the vehicle body 11 in the front-rear direction, and the dashboard lower panel 18.
- Left and right front pillars 19 provided on the sides of the left and right, left and right upper members (apron reinforcement) 21 extending from the left and right front pillars 19 in the longitudinal direction of the vehicle body, and obliquely downward from the left and right upper members 21 toward the front of the vehicle body
- the left and right lower members 22 extended, a cowl box (space part) 23 (FIG.
- the vehicle 10 includes a left handle.
- vehicle width direction end portions 18b and 18b are joined to left and right front pillars 19 respectively.
- the dashboard lower panel 18 partitions the vehicle compartment 12 and the engine room 13.
- the dashboard lower panel 18 includes a vertical wall 91 extending perpendicularly to the vehicle body 11 and an inclined surface 92 inclined downward from the vertical wall 91 toward the rear of the vehicle body.
- the dashboard lower panel 18 has a brake master cylinder mounting portion 37 for mounting the brake master cylinder 36.
- the dashboard lower panel 18 includes an oblique flange 93 formed on the upper end 18 a of the dashboard lower panel 18, and a side edge flange 94 joined to the front pillar inner panel 19 a of the front pillar 19. Is formed.
- the left and right damper housings 27 are provided in front of the dashboard lower panel 18.
- the cowl box 23 includes a dashboard upper panel 31, a windshield lower support 32, and a cowl top 33, and has a space portion that extends in the vehicle width direction.
- the cowl box 23 has a cowl opening 44 formed between the upper end 41a of the front vertical wall (front wall) 41 of the dashboard upper panel 31 and the tip 81a of the windshield support surface 81 of the windshield lower support 32.
- the opening 44 is covered with a cowl top 33.
- the cowl top 33 is made of resin.
- FIG. 5 is a central section of the cowl box 23, and FIG. 6 is an end section of the cowl box 23.
- the dashboard upper panel 31 includes a vertical front wall (front wall) 41 extending substantially vertically in the vertical direction of the vehicle body, and a horizontal bottom wall (bottom wall) extending substantially horizontally from the lower end 41b of the vertical front wall 41 in the vehicle front-rear direction. ) 42, an inclined rear wall (rear wall) 43 extending obliquely rearward from the rear end 42 a of the horizontal bottom wall 42 toward the upper side of the vehicle body, and a horizontal front flange (upper) extending forward from the vertical front wall 41 to the vehicle body.
- Side front flange) 45 and a horizontal rear flange (upper side rear flange) 46 extending rearward from the inclined rear wall 43 to the vehicle body.
- the diagonal flange 93 of the dashboard lower panel 18 is joined to the lower part 43a of the inclined rear wall 43. Therefore, the vertical wall 91 of the dashboard lower panel 18 supports the approximate center of the dashboard upper panel 31 in the vehicle longitudinal direction from below. Both ends 31b and 31b (FIG. 3) of the dashboard upper panel 31 form a closed section 34 by the dashboard lower panel 18, the damper housing 27, and the wheel house 28, as shown in FIG.
- the dashboard upper panel 31 includes a windshield lower support (windshield lower support member) 32 that supports the lower end 24 a of the windshield 24.
- the dashboard upper panel 31 and the windshield lower support 32 form a cowl opening 44 facing the front upper part.
- the dashboard upper panel 31 has a simple U-shaped cross section with an upward opening to improve productivity and is configured with a windshield lower support 32 to introduce outside air into an air conditioner (air conditioner, not shown).
- the outside air introduction passage 39 is formed to have a larger cross section and to increase the intake amount of the air conditioner.
- the dashboard upper panel 31 includes an L-shaped cowl reinforcing member 49 that extends between the vertical front wall 41 and the front portion 42 b of the horizontal bottom wall 42 in the cowl box 23.
- the front vertical wall 41, the front portion 42b of the horizontal bottom wall 42, and the cowl reinforcing member 49 form a closed cross section 47 extending in the vehicle width direction.
- the drainage channel 48 for draining rainwater is formed on the dashboard upper panel 31.
- the drainage channel 48 is a groove having a U-shaped cross section formed by the front vertical wall 41, the horizontal bottom wall 42, and the rear inclined wall 43.
- the dashboard upper panel 31 is formed in a recessed portion 51 having a horizontal bottom wall 42 recessed upwardly above the brake master cylinder mounting portion 37.
- the dashboard upper panel 31 has an air conditioner intake port 52 formed to suck outside air into an air conditioner (an air conditioner device, not shown).
- the air conditioner intake port 52 is a portion that sucks outside air into the air conditioner via the outside air introduction path 39 (FIG. 5), and a draining plate 53 (FIG. 1) for preventing rainwater is provided in front of the vehicle body.
- an input from the wheel 29 causes the damper housing 27 to fall inwardly of the vehicle body, and the damper housing 27 is vibrated to generate vibration, and the joined dashboard upper panel ( The vibration is transmitted to the cowl part 31 and is transmitted from the dashboard upper panel 31 to the dashboard lower panel 18, which causes indoor noise.
- the dashboard lower panel 18 supports the lower portion 43a of the rear inclined wall 43 corresponding to the approximate center of the dashboard upper panel (cowl portion) 31 in the vehicle longitudinal direction.
- the vibration of the dashboard upper panel 31 was damped. Thereby, by suppressing the vibration of the dashboard lower panel 18, it is not necessary to add a reinforcing member, and the weight of the vehicle body 11 (FIG. 1) can be reduced.
- the cowl reinforcing member 49 is formed above the brake master cylinder mounting portion 37 (FIG. 2) and is bent upwardly in a front view (FIG. 14). ) And a straight portion 55 formed in a portion deviating from the vicinity of the brake master cylinder mounting portion 37 in the vehicle width direction and linearly formed in a front view.
- the curved portion 54 and the straight portion 55 are combined to form an integrated cowl reinforcing member 49.
- the curved portion 54 is a pressed product of a steel plate and forms the left side of the closed section 47 across the front vertical wall 41 and the horizontal bottom wall 42 of the dashboard upper panel 31. As shown in FIG. 18, the curved portion 54 is formed with a reinforcing member side recessed portion 56 along the shape of the recessed portion 51 of the dashboard upper panel 31.
- the straight portion 55 is formed by bending a steel plate into an L shape to form a reinforcing portion upper wall 61b and a reinforcing portion rear wall 62b, and a front end flange 63b extends upward from the reinforcing portion upper wall 61b.
- the rear end flange 64b extends from the reinforcing portion rear wall 62b to the rear of the vehicle body.
- a ridge line 65b is formed between the reinforcing portion upper wall 61b and the reinforcing portion rear wall 62b.
- the curved portion 54 is formed with a reinforcing portion upper wall 61a, a reinforcing portion rear wall 62a, a front end flange 63a, a rear end flange 64a, and a ridge 65a.
- the straight portion 55 is formed of a thinner plate than the curved portion 54.
- the straight portion 55 is continuously bent to the curved portion 54 and forms the right side of the closed cross-section 47 across the front vertical wall 41 and the horizontal bottom wall 42 of the dashboard upper panel 31 as a press bent product of a steel plate.
- a cowl opening reinforcing member (reinforcing the dashboard upper panel 31 having a U-shaped cross section) is provided between the straight portion 55 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31.
- a vertical reinforcing member 66 is coupled.
- First and second wiper motor mounting brackets 67 and 68 are coupled between the curved portion 54 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31.
- a wiper motor 69 for wiping the windshield 24 is attached to the first and second wiper motor mounting brackets 67 and 68. That is, at the center of the dashboard upper panel 31, the cowl opening reinforcing member (longitudinal reinforcing member) 66 connects the straight portion 55 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31. Improve the strength in the front-rear direction.
- the first and second wiper motor mounting brackets 67 and 68 connect the curved portion 54 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31 to improve the strength in the front-rear direction and to reinforce the cowl.
- the curved portion 54 of the member 49 is also reinforced.
- the windshield lower support 32 is a member (front glass lower end support member) that supports the lower end 24a of the windshield 24.
- the windshield lower support 32 includes a windshield support surface 81 inclined downward toward the front of the vehicle body, a windshield upper surface 82 extending from the windshield support surface 81 to the rear of the vehicle body, and a rearward of the vehicle body from the windshield upper surface 82.
- the windshield rear surface 83 extends obliquely downward toward the windshield, and the windshield side flange 84 extends horizontally from the windshield rear surface 83.
- the windshield lower support 32 is provided with a windshield lower support reinforcing stay 86 for reinforcement on the dashboard upper panel 31 side at the center of the vehicle body.
- the windshield lower support reinforcing stay 86 includes a support-side front flange 87 along the windshield support surface 81, a stay portion 88 extending downward from the support-side front flange 87 toward the rear of the vehicle body, and the stay portion 88.
- a support-side rear flange 89 extending rearward from the vehicle body.
- the windshield lower flange 32 of the windshield lower support 32 and the rear horizontal flange 46 of the dashboard upper panel 31 are coupled to the support side rear flange 89 of the windshield lower support reinforcing stay 86.
- the dashboard lower panel 18 includes an oblique flange 93 formed at the upper end 18a of the dashboard lower panel 18 and a side edge flange 94 that joins the front pillar inner panel 19a of the front pillar 19 (FIG. 4).
- the oblique flange 93 is continuous with the side edge flange 94 and forms an L-shaped waterproof wall 95 at the corner 18 c of the dashboard lower panel 18. Water intrusion from the dashboard upper panel 31 is suppressed, and the reliability of preventing water intrusion from the dashboard upper panel 31 is improved.
- the dashboard lower panel 18 has first and second beads 96 and 97 formed continuously up to the dashboard upper panel 31.
- the first bead 96 includes a lower bead 96a formed on the dashboard lower panel 18 side and an upper bead 96b formed on the dashboard upper panel 31 side.
- the second bead 97 includes a lower bead 97a and an upper bead 97b.
- the first and second beads 96 and 97 are continuously formed from the dashboard upper panel (cowl part) 31 to the dashboard lower panel 18 to secure an installation space for the air conditioner, and the dashboard lower panel 18. Suppresses panel vibration.
- a dashboard upper panel 31 a windshield lower support 32, a cowl top 33 (FIG. 5), a cowl reinforcing member 49, and a windshield lower support.
- a cowl box 23 (dashboard upper panel 31) comprising a reinforcing stay 86 is set as shown by arrows a1 and a2 from above the dashboard lower panel 18 and the damper housing 27.
- the front vertical wall 41 and the front horizontal flange 45 abut against the rear wall 27b and the upper wall 27a of the damper housing 27, respectively. Thereby, the movement of the cowl box 23 toward the front of the vehicle body is suppressed as indicated by the arrow a6, and the cowl box 23 is positioned.
- the dashboard upper panel 31 includes a rear inclined wall 43 that is inclined rearward and upward from the center, and the front has a horizontal bottom wall 42, a front vertical wall 41, and a front horizontal flange 45 continuously.
- the upper flange 18 of the upper end 18a is in contact with the rear inclined wall 43, and the front vertical wall 41 and the front horizontal flange 45 are in contact with the rear wall 27b and the upper wall 27a of the damper housing 27.
- the board lower panel 18 and the damper housing 27 are set from above, and the slant flange 93 abuts against the rear slant wall 43, so that the rearward movement is suppressed and the urging force due to the gravitational force acts forward. Moving the horizontal flange 45 forward by contacting the rear wall 27b and the upper wall 27a of the damper housing 27 Is suppressed to positioning, the set can be improved.
- the windshield lower support 32 and the dashboard upper panel 31 are inserted into the cowl opening 44 through one end 98 of the sandwich welding gun, and the other end 99 of the sandwich welding gun is brought close to the rear surface 43b of the rear tilt wall 43,
- the slanted flange 93 is sandwiched and formed into a shape that can be welded.
- the rear inclined wall 43 at the center of the lower part of the dashboard upper panel 31 and the oblique flange 93 at the upper end 18a of the dashboard lower panel 18 are brought into contact with each other and are sandwiched from the windshield lower support 32 and the opening 44 of the dashboard upper panel 31. Is inserted, and the other sandwich welding gun 99 is brought close to the rear surface 43b of the rear inclined wall 43, so that sandwich welding is possible, and the workability of sandwich welding capable of mass production is improved.
- a dashboard lower panel 18 in which vehicle width direction end portions 18b, 18b are joined to the left and right front pillars 19 and a dash provided on the upper portion of the dashboard lower panel 18 are shown.
- a board upper panel 31 and left and right damper housings 27 provided in front of the dashboard lower panel 18 are provided.
- the dashboard upper panel 31 includes a front vertical wall 41 extending substantially vertically in the vertical direction of the vehicle body, a horizontal bottom wall 42 extending substantially horizontally from the lower end 41b of the front vertical wall 41 in the vehicle longitudinal direction, and the horizontal bottom wall. 42 includes a rear inclined wall 43 extending obliquely rearward from the rear end 42a of the vehicle 42 toward the upper side of the vehicle body.
- the dashboard lower panel 18 includes a vertical wall 91 and an oblique flange 93 formed on the upper end 18a of the vertical wall 91 (dashboard lower panel 18).
- vibration is generated in the damper housing 27 due to the inclining of the damper housing 27 during traveling, and the vibration is transmitted to the dashboard upper panel (cowl portion) 31 coupled to the damper housing 27, so that the dashboard upper panel (cowl) Vibration) reaches the dashboard lower panel 18 and becomes one of the causes of room noise.
- an oblique flange 93 is joined (coupled) to the lower portion 43a of the rear inclined wall 43 of the dashboard upper panel 31, and the vertical wall 91 supports the approximate center of the dashboard upper panel 31 in the vehicle longitudinal direction from below.
- the supportability of the upper panel 31 was improved, and the vibration of the dashboard upper panel 31 was reduced.
- the vibration transmitted from the dashboard upper panel 31 to the dashboard lower panel 18 is reduced, and the indoor vibration can be reduced.
- the quietness of the room 12 can be improved.
- the dashboard lower panel 31 includes a side edge flange 94 that is joined (coupled) to the front pillar inner panel 19 a of the front pillar 19, and the diagonal flange 93 is continuous with the side edge flange 94 to provide a dashboard lower panel. Since the L-shaped waterproof wall 95 is formed at the 18 corners 18c (FIG. 7), it is possible to reliably prevent water from entering the interior 12 from the dashboard upper panel 31.
- the rear inclined wall 43 is brought into contact with the inclined flange 93 and the front vertical wall 41 is placed.
- the front horizontal flange 45 extending forward from the upper end 41a of the front vertical wall 41 is in contact with the rear wall 27b and the upper wall 27a of the damper housing 27, respectively.
- the dashboard upper panel 31 when the dashboard upper panel 31 is set on the dashboard lower panel 18 and the damper housing 27 from above, the rearwardly inclined wall 43 abuts against the rearward inclined wall 43 so that the rearward movement is suppressed and the forward gravity is reduced.
- the front vertical wall 41 and the front horizontal flange 45 are brought into contact with the rear wall 27b and the upper wall 27a of the damper housing 27 so that the forward movement is suppressed and positioning can be performed. As a result, the setability of the dashboard upper panel 31 can be improved.
- the dashboard upper panel 31 includes a windshield lower support 32 that supports the windshield 24.
- the dashboard upper panel 31 and the windshield lower support 32 form a cowl opening 44 directed to the upper front.
- the windshield lower support 32 and the dashboard upper panel 31 insert the one 98 of the sandwich welding gun from the opening 44 and bring the other 99 of the sandwich welding gun close from the back of the rear tilt wall 43, so that the rear tilt wall 43 and the diagonal flange Since the windshield lower support 32 and the dashboard upper panel 31 can be mass-produced, the welding can be performed. That is, the workability of welding the front part of the vehicle body can also be improved.
- a wheel house 28 that covers the wheel 29 is provided below the damper housing 27, and the dashboard upper panel 31 is closed at both ends 31 b and 31 b by the dashboard lower panel 18, the damper housing 27, and the wheel house 28. Since the cross section 34 is formed, the rigidity of the front portion of the vehicle body can be improved.
- beads 96 and 97 that continue to the dashboard upper panel 31 are formed on the dashboard lower panel 18.
- the dashboard lower panel 18 it is necessary to secure the retreat amount of the vehicle-mounted parts in the engine room at the time of the front collision, and it is necessary to secure the installation space for the indoor side parts of the air conditioner (air conditioner device) behind the dashboard lower panel 18. Therefore, it is difficult to secure a space for installing a reinforcing member that suppresses panel vibration.
- the beads 96 and 97 that continue to the dashboard upper panel 31 are formed on the dashboard lower panel 18, the retreat amount of the vehicle-mounted parts in the engine room 13 at the time of the front collision, and the installation space for the indoor side parts of the air conditioner device The vibration of the dashboard lower panel 18 can be suppressed while securing the above.
- the bending portion 54 is formed by bending a steel plate into an L shape to form a reinforcing portion upper wall 61a and a reinforcing portion rear wall 62a.
- the front end flange 63 a of the curved portion 54 extends upward from the reinforcing portion upper wall 61 a and is joined to the front vertical wall 41.
- the rear end flange 64a extends from the reinforcing portion rear wall 62a toward the rear of the vehicle body and is joined to the upper raised portion 42 of the horizontal bottom wall 42.
- a ridge 65a is formed between the reinforcing portion upper wall 61a and the reinforcing portion rear wall 62a.
- the straight portion 55 has a reinforcing portion upper wall 61b and a reinforcing portion rear wall 62b formed by bending a steel plate into an L shape.
- the front end flange 63b of the straight portion 55 extends upward from the reinforcing portion upper wall 61b and is joined to the front vertical wall 41.
- the rear end flange 64b extends from the reinforcing portion rear wall 62b toward the rear of the vehicle body and is joined to the upper raised portion 42c (FIG. 15) of the horizontal bottom wall 42.
- a ridge line 65b is formed between the reinforcing portion upper wall 61b and the reinforcing portion rear wall 62b.
- the straight portion 55 of the cowl reinforcing member 49 does not have the reinforcing member-side recess 56, a thin steel plate is used to reduce the weight. That is, the straight portion 55 is formed with a thinner plate than the curved portion 54. The straight portion 55 is formed by pressing and bending the steel plate continuously with the curved portion 54, and forms the right side portion of the closed section 47 (FIG. 15) across the front vertical wall 41 and the horizontal bottom wall 42 of the dashboard upper panel 31. .
- the curved portion 54 of the cowl reinforcing member 49 has a reinforcing member-side concave portion 56 in a portion where the upward concave portion 51 of the dashboard upper panel 31 is formed.
- the rigidity was equivalent to that of the straight portion 55.
- the cowl reinforcing member 49 is formed by bending the steel plate into an L shape to form the reinforcing portion upper walls 61a and 61b and the reinforcing portion rear walls 62a and 62b.
- Front end flanges 63a and 63b extend from the reinforcing portion upper walls 61a and 61b
- rear end flanges 64a and 46b extend from the reinforcing portion rear walls 62a and 62b
- the front end flanges 63a and 63b are joined to the front vertical wall 41.
- the end flanges 64a and 64b are joined to the horizontal bottom wall 42 to form a closed cross section 47.
- both end portions 54a, 55a of the cowl reinforcing member 49 in the vehicle width direction are coupled to the upper wall 27a of the damper housing 27 via left and right stiffeners 57, 58. That is, the left and right stiffeners 57 and 58 are added to improve the rigidity of the vehicle body (for the body rigidity).
- a substantially U-shaped cross section of the dashboard upper panel 31 is provided between the straight portion 55 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31.
- a cowl opening reinforcing member (vertical reinforcing member) 66 to be reinforced is coupled.
- First and second wiper mounting brackets (first and second wiper motor mounting brackets) 67 and 68 are coupled between the curved portion 54 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31. ing.
- a wiper motor 69 (FIG. 3), which is a component of a wiper device (not shown) for wiping the windshield 24 (FIG. 1), is attached to the first and second wiper mounting brackets 67 and 68. That is, at the center of the dashboard upper panel 31, the cowl opening reinforcing member (longitudinal reinforcing member) 66 connects the straight portion 55 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31. Improve the strength in the front-rear direction.
- the first and second wiper mounting brackets 67 and 68 connect the curved portion 54 of the cowl reinforcing member 49 and the rear inclined wall 43 of the dashboard upper panel 31 to improve the strength in the front-rear direction and the cowl.
- the curved portion 54 of the reinforcing member 49 is also reinforced. Thereby, the plate
- the left stiffener 57 includes a stiffener main body 71 extending substantially horizontally, and a stiffener front flange 72 formed in front of the vehicle body of the stiffener main body 71. , A stiffener rear flange 73 formed on the rear side of the stiffener body 71 and a housing coupling portion 74 formed on the outside of the stiffener body 71.
- the connection state of the left side of the vehicle body (one side of the vehicle body) will be described.
- the front stiffener front flange 72 of the left stiffener and the front end flange 63 a of the curved portion 54 of the cowl reinforcing member 49 are vertically front of the dashboard upper panel 31. It is welded across the wall 41.
- the housing coupling portion 74 of the left stiffener 57 is coupled to the upper wall 27 a of the damper housing 27.
- the left stiffener 57 is a member that couples the closed section 47 formed by the curved portion 54 of the cowl reinforcing member 49 and the dashboard upper panel 31 to the upper wall 27a of the damper housing 27 having high strength and rigidity. That is, the dashboard upper panel 31 can have a highly rigid structure.
- the right stiffener 58 includes a stiffener body 76, a stiffener front flange 77, a stiffener rear flange 78 (FIG. 21), and a housing coupling portion 79.
- the straight portion 55 of the cowl reinforcing member 49 also has the same structure (coupled state) as the left stiffener 57.
- the straight portion 55 of the cowl reinforcing member 49 is also provided with a right stiffener 58 to improve the rigidity of the vehicle body (the body rigidity is improved).
- the windshield lower support 32 is a member (front glass lower end support member) that supports the lower end 24a of the windshield 24.
- the windshield lower support 32 includes a windshield support surface 81 inclined downward toward the front of the vehicle body, a windshield upper surface 82 extending rearward from the windshield support surface 81, and the windshield upper surface 82 extending rearward from the vehicle body.
- a windshield rear surface 83 that extends obliquely downward and a windshield side flange 84 that extends horizontally from the windshield rear surface 83.
- the windshield lower support 32 is provided with a windshield lower support reinforcing stay 86 for reinforcement on the dashboard upper panel 31 side at the center of the vehicle body.
- the windshield lower support reinforcing stay 86 includes a support-side front flange 87 along the windshield support surface 81, a stay portion 88 extending downward from the support-side front flange 87 toward the rear of the vehicle body, and the stay portion 88 to the vehicle body. It consists of a support side rear flange 89 extending rearward.
- the windshield lower support 32, the windshield lower support reinforcing stay 86, and the dashboard upper panel 31 are coupled to the support side rear flange 89, the windshield side flange 84, and the upper side rear flange 46.
- the cowl structure of the vehicle according to the present invention includes a front-rear length L1 of the windshield lower support 32 and an upper end of the windshield lower support 32 at the center of the cowl box (space portion) 23 in the vehicle width direction.
- the height H1 from 32a to the lower end 31a of the dashboard upper panel 31 is set substantially the same. That is, the cowl box 23 is formed with a recess having a height H1 that is substantially the same as the longitudinal length L1 of the windshield lower support 32.
- the indoor space has been expanded.
- S1 indicates an indoor space enlarged portion.
- cowl reinforcing member 49 is formed in a simple structure by bending a steel plate into an L shape so that productivity can be improved.
- a closed cross section 47 extending in the vehicle width direction is formed by the cowl reinforcing member 49 and the front vertical wall 41 and the horizontal bottom wall 42 of the dashboard upper panel 31 to improve the vehicle body rigidity.
- a dashboard upper panel 31 provided on the upper part of the dashboard lower panel 18, a windshield lower support 32 provided on the upper rear side of the dashboard upper panel 31 and supporting the windshield 24, and a dash
- a cowl box 23 having a space extending in the vehicle width direction is formed by a cowl top 33 provided in front of the upper portion of the board upper panel 31.
- the dashboard upper panel 31 includes a front vertical wall 41 extending in the vertical direction of the vehicle body, a horizontal bottom wall 42 extending in the rear direction of the vehicle body from the lower end 41b of the front vertical wall 41, and a rear end 42a of the horizontal bottom wall 42.
- a substantially inclined U-shaped cross section is formed by a rear inclined wall 43 extending obliquely rearwardly of the vehicle body.
- a cowl reinforcing member 49 that forms a closed cross-section 47 extending in the vehicle width direction is provided in the space of the cowl box 23 and between the front vertical wall 41 and the front portion 42b of the horizontal bottom wall 42.
- the vehicle body rigidity in the direction can be improved. Further, the cowl reinforcing member 49 can be made simple and productivity is improved.
- the amount of projection of the dashboard lower panel 18 toward the engine room 13 can be reduced.
- the maintainability of the engine room 13 can be improved.
- the space in the passenger compartment 12 can be expanded.
- the front-rear length L1 of the windshield lower support 32 and the height H1 from the upper end 32a of the windshield lower support 32 to the lower end 31a of the dashboard upper panel 31 are substantially the same. Since it was set to, a recessed part can be formed up and down. As a result, a sufficient amount of air sucked into an air conditioner (not shown) can be secured.
- the dashboard lower panel 18 is formed with a brake master cylinder mounting portion 37 for attaching the brake master cylinder 36 (FIG. 2).
- the dashboard upper panel 31 has a recess 51 formed above the brake master cylinder mounting portion 37 so that the horizontal bottom wall 42 is recessed upward.
- the cowl reinforcement member 49 includes a curved portion 54 formed above the brake master cylinder mounting portion 37 and curved upward in a front view, and a brake master cylinder in the vehicle width direction. It is divided into a linear portion 55 that is formed at a location deviating from the vicinity of the attachment portion 37 and is linearly formed in a front view. Since the straight portion 55 has higher rigidity and strength than the curved portion 54, it can be formed of a thin plate, and the weight of the vehicle body can be reduced.
- the cowl reinforcing member 49 is formed by bending a steel plate into an L shape to form reinforcing portion upper walls 61a and 61b and reinforcing portion rear walls 62a and 62b, and reinforcing portion upper walls 61a and 61b.
- the front end flanges 63a and 63b extend from the reinforcing portion rear walls 62a and 62b, the rear end flanges 64a and 64b extend, the front end flanges 63a and 63b are joined to the front vertical wall 41, and the rear end flanges 64a and 64b are horizontal. Coupled to the bottom wall 42, a closed cross section 47 is formed.
- the strength and rigidity of the dashboard upper panel 31 can be reduced with a simple shape and a small amount of material by effectively using the corners (ridge lines 65a and 65b) of the reinforcement upper walls 61a and 61b and the reinforcement rear walls 62a and 62b.
- An increased closed cross-section 47 can be formed.
- weight reduction is further improved, and strength and rigidity are improved at a low cost.
- left and right damper housings 27 that support the damper unit 38 are provided in front of the dashboard lower panel 18. Both end portions 54a and 55a of the cowl reinforcing member 49 in the vehicle width direction are coupled to stiffeners 57 and 58 coupled to the front vertical wall 41 of the dashboard upper panel 31, and the upper wall of the damper housing 27 is interposed via the stiffeners 57 and 58. Since it couple
- a cowl opening reinforcing member 66 having a substantially U-shaped cross section is coupled between the straight portion 55 of the cowl reinforcing member 49 and the rear wall 43 of the dashboard upper panel 31. Therefore, the strength of the dashboard upper panel 31 in the longitudinal direction of the vehicle body can be improved.
- wiper mounting brackets 67 and 68 to which a wiper motor 69 for wiping the windshield 24 is attached are coupled between the curved portion 54 of the cowl reinforcing member 49 and the rear wall 43 of the dashboard upper panel 31. Therefore, the strength of the dashboard upper panel 31 in the longitudinal direction of the vehicle body can be improved and the curved portion 54 of the cowl reinforcing member 49 can also be strengthened. Thereby, it can also be expected that the thickness of the cowl reinforcing member 49 is reduced.
- the dashboard lower panel 18 includes a dashboard cross member 35 extending in the vehicle width direction on the interior 12 side, and a brake master cylinder mounting portion (brake master cylinder reinforcing plate) for mounting the brake master cylinder 36 (FIG. 2). 37).
- a brake master cylinder mounting portion brake master cylinder reinforcing plate for mounting the brake master cylinder 36 (FIG. 2). 37.
- an accelerator pedal bracket 103 that supports the accelerator pedal 102 and a steering shaft joint cover 105 that covers the steering shaft 104 are provided.
- the dashboard lower panel 18 includes an oblique flange 93 formed on the upper end 18a (FIG. 5) of the dashboard lower panel 18, a side edge flange 94 joined to the front pillar inner panel 19a of the front pillar 19, and left and right wheels.
- a wheel house portion 101 formed with the rear portion of the house 28 (FIG. 1) is formed.
- the wheel house portion 101 is formed so that rigidity is improved by causing the dashboard lower panel 18 to bulge out toward the interior 12 to have a curved shape.
- the wheel house part 101 is configured with a rear part of the wheel house 28.
- the dashboard cross member 35 is formed in a U-shaped cross section with the upper wall 106, the bottom wall 107, and the lower wall 108.
- the dashboard cross member 35 has an upper flange 106 a extending upward from the upper wall 106 and a lower flange 108 a extending downward from the lower wall 108.
- the first coupling portion 106b of the upper flange 106a and the second coupling portion 108b of the lower flange 108a are coupled to the wheel house 28.
- the right end portion 103a of the accelerator pedal bracket 103 is coupled to one end portion (left end portion) 35a of the dashboard cross member 35, so that the accelerator pedal bracket 103 is connected.
- the upper left end portion 103b is coupled to the brake master cylinder mounting portion 37 by the third coupling portion 109a, and the lower left end portion 103c of the accelerator pedal bracket 103 is coupled to the steering shaft joint cover 105 by the fourth coupling portion 109b.
- the brake master cylinder mounting portion 37 is coupled to the left wheel house 28 by the fifth coupling portion 109c.
- the dashboard cross member 35 has one end (left end) 35a disposed on one of the left and right wheel houses 28 (the left wheel house 28) via the accelerator pedal bracket 103 and the brake master cylinder mounting portion 37. ).
- the dashboard cross member 35 has the other end portion (right end portion) 35b coupled to the right wheel house portion 101 (the other of the left and right wheel house portions 101). Yes. Further, as shown in FIG. 26, the dashboard cross member 35 forms a closed cross section 59 with the dashboard lower panel 18, and the right wheel house 28 (the other of the left and right wheel houses 28 sandwiching the dashboard lower panel 18). ).
- the dashboard cross member 35 has one end 35a at the left wheel house 28 (one of the wheel houses 28) via an accelerator pedal bracket 103 and a brake master cylinder mounting portion (reinforcing plate) 37.
- the vehicle body front structure includes a dashboard lower panel 18 that partitions the vehicle body 11 in the front-rear direction, and left and right wheels provided on the engine room 13 side of the dashboard lower panel 18.
- a house 28 and a damper housing 27 provided in front of the dashboard lower panel 18 are provided.
- the dashboard lower panel 18 is provided with a dashboard cross member 35 extending in the vehicle width direction on the interior 12 side, and the dashboard cross member 35 forms a closed cross section 59 with the dashboard lower panel 18.
- the vibration transmitted to the dashboard lower panel 18 through the wheel house 28 can be damped by a closed cross section 59 formed by the dashboard cross member 35 and the dashboard lower panel 18.
- the dashboard cross member 35 is coupled to the wheel house 28 so that the dashboard lower panel 18 is sandwiched between the dashboard cross member 35 and the wheel house 28, the vibration of the wheel house 28 itself can be suppressed. That is, vibration transmission from the wheel house 28 to the dashboard lower panel 18 can be suppressed to reduce indoor noise. As a result, the room 12 can be quieted.
- the rigidity of the dashboard lower panel 18 is increased by expanding the dashboard lower panel 18 toward the room 12 and making it into a curved shape.
- wheel house parts 101 formed respectively are provided at the rear part of the left and right wheel houses 28.
- the dashboard cross member 35 is coupled to the rigid wheel house portion 101, for example, even if the dashboard cross member 35 is not extended to the front pillar 19 and coupled to the front pillar 19, Predetermined strength and rigidity can be ensured at the front of the vehicle body.
- the dashboard cross member 35 can be shortened to reduce the weight of the front portion of the vehicle body, and the rigidity of the wheel house portion 101 itself can be enhanced and strengthened.
- the dashboard lower panel 18 is provided with an accelerator pedal bracket 103 that supports the accelerator pedal 102 and a brake master cylinder mounting portion 37 to which the brake master cylinder 36 is mounted on one side (left side) of the vehicle body 11.
- the dashboard cross member 35 has one end (left end) 35a disposed on one side of the left and right wheel houses 28 (left wheel house 28) via at least one of the accelerator pedal bracket 103 and the brake master cylinder mounting portion 37. Since the dashboard cross member 35 is further shortened, the weight can be reduced.
- the vehicle 110 includes a left and right front side frames 115 (not shown) extending in the longitudinal direction of the vehicle body, a dashboard lower panel 118 that partitions the vehicle body 111 in the longitudinal direction, and a dashboard.
- a dashboard upper panel 131 (FIG. 35) provided on the upper part of the board lower panel 118, left and right wheel houses 128 provided on the engine room 113 side of the dashboard lower panel 118, and a front pillar provided on the side of the dashboard lower panel 118. 119.
- the vehicle 110 is a right-hand drive vehicle.
- the dashboard lower panel 118 supports a dashboard cross member 135 extending in the vehicle width direction on the interior 112 side, a brake master cylinder reinforcing plate (brake master cylinder mounting portion) 137 to which the brake master cylinder 136 is mounted, and an in-vehicle mounting component 129.
- a support bracket 127 (FIG. 17), an accelerator pedal bracket 126 for supporting an accelerator pedal (not shown), and a steering shaft joint cover 125 for covering the steering shaft 124.
- the dashboard lower panel 118 includes wheel house portions 121 in which the rear portions of the left and right wheel houses 128 are respectively formed.
- Accelerator pedal bracket 126, brake master cylinder mounting portion 137, steering shaft joint cover 125, and support bracket 127 are provided on the other side (right side) of vehicle body 111.
- the in-vehicle mounting component 129 is specifically a foot parking pedal.
- the dashboard cross member 135 is connected to the dashboard upper panel 131 via a support bracket 127.
- the support bracket 127 includes first and second bracket coupling portions 127a and 127b coupled to the dashboard cross member 135, a third bracket coupling portion 127c coupled to the dashboard lower panel 118, and the dashboard. And a fourth bracket coupling portion 127d coupled to the upper panel 131.
- the strength of the dashboard cross member 135 is increased by being connected to the dashboard upper panel 131 by the support bracket 127 that supports the foot parking pedal (on-vehicle mounting part) 129.
- the dashboard cross member 135 has a straight portion 138 provided on one side (left side) and a curved portion 139 provided on the other side (right side).
- the dashboard cross member 135 has one end (left end) 135 a coupled to one of the left and right wheel houses 128 (left wheel house 128) via the dashboard lower panel 118. Also, one end (left end) 135a is also coupled to (one of the left and right wheel house portions 121).
- the other end (right end) 135b of the dashboard cross member 135 is connected to the other of the left and right wheel houses 128 (right wheel house 128) via a brake master cylinder mounting portion 137. Are connected.
- the curved portion 139 of the dashboard cross member 135 is coupled to the steering shaft joint cover 125 at the cross member side coupling portion 122a, and the other end portion (right end portion) 135b of the dashboard cross member 135 is the brake. It is coupled to the master cylinder mounting portion 137.
- the brake master cylinder mounting portion 137 is coupled to the accelerator pedal bracket 126 and the wheel house 128 by an accelerator side coupling portion 122b.
- the dashboard cross member 135 has the other end (right end) 135b coupled to the right wheel house 128 via the brake master cylinder mounting portion 137, and does not extend to the front pillar 119, so that the vehicle body rigidity is increased. I tried to improve.
- the dashboard lower panel 118 is provided with a brake master cylinder mounting portion 137 to which the brake master cylinder 136 is mounted on the other side of the vehicle body 111.
- the other end (right end) 135b is The other end (right end) 135b of the dashboard cross member 135 is connected to the other of the left and right wheel houses 128 (right wheel house 128) via the brake master cylinder mounting portion 137. It is not necessary to extend to the front pillar 119, and weight reduction can be further promoted.
- the dashboard lower panel 118 includes a dashboard upper panel 131 provided on the upper portion of the dashboard lower panel 118 and a support bracket 127 that supports a foot parking pedal (on-vehicle mounting component) 129. Since the dashboard cross member 135 is connected to the dashboard upper panel 131 via the support bracket 127, the dashboard cross member 135 is reinforced by the support bracket 127. Thereby, the plate
- the in-vehicle attachment component 129 is a foot parking pedal, but is not limited to this, and is a steering hanger that supports a steering wheel or the like. Also good.
- the dashboard cross member 35 has one end (left end) 35a disposed on one of the left and right wheel houses 28 (the left end) via the accelerator pedal bracket 103 and the brake master cylinder mounting portion 37.
- the present invention is not limited to this, and the dashboard cross member 35 has at least one of the accelerator pedal bracket 103 and the brake master cylinder mounting portion 37 at one end (left end) 35a. It may be combined with one of the left and right wheel houses 28 (left wheel house 28). As a result, the dashboard cross member 35 can be further shortened to reduce the weight.
- the vehicle 10 is a left-hand drive vehicle. However, in the case of a right-hand drive vehicle, it does not prevent the left and right structures of the vehicle body 11 from being interchanged. .
- the vehicle body front structure according to the present invention is suitable for use in passenger cars such as sedans and wagons.
- windshield lower support 33 ... cowl Top 34 ... closed cross section, 35 ... dashboard cross member, 35a ... one end, 35b ... the other end, 36 ... brake master cylinder, 37 ... brake master cylinder reinforcing plate (brake master cylinder mounting portion), 38 ... damper Unit 41: Front vertical wall (front wall), 41b ... Lower end of front vertical wall, 42 ... Horizontal bottom wall (bottom wall), 42a ... Rear end of horizontal bottom wall, 43 ... Rear inclined wall (rear wall), 43a ... lower part of rear inclined wall, 43b ... rear face of rear inclined wall, 44 ... opening (cowl opening), 45 ... front horizontal flange (upper side front flange), 46 ...
- Wiper motor 93 ... Diagonal flange, 94 ... Side edge flange, 95 ... L-shaped waterproof wall, 96, 97 ... First and second beads, 98 ... One of pinch welding guns, 99 ... The other pinch welding gun , L1 ... front and rear length of windshield lower support, H1 ... height from upper end to lower end of dashboard upper panel, 101 ... wheel house part, 102 ... accelerator pedal, 103 ... accelerator pedal bracket, 111 ... vehicle body, 118 ... Dashboard lower panel, 127 ... support bracket, 128 ... left and right wheel houses, 129 ... in-vehicle mounting parts (foot parking handle Dal), 131 ... Dashboard upper panel, 135 ... Dashboard cross member, 135a ... One end (left end), 135b ... The other end (right end), 136 ... Brake master cylinder, 137 ... Brake master cylinder reinforcement plate.
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Abstract
Description
Claims (16)
- 左右のフロントピラーに車幅方向端部が接合するダッシュボードロアパネルと、前記ダッシュボードロアパネルの上部に設けられたダッシュボードアッパパネルと、前記ダッシュボードロアパネルの前方に設けられた左右のダンパハウジングとを備えている車体前部構造であって、
前記ダッシュボードアッパパネルは、
車体上下方向に略垂直に延ばした前垂直壁と、
この前垂直壁の下端から車体前後方向に略水平に延びた水平底壁と、
前記水平底壁の後端から車体上方に向けて斜め車体後方に延びた後傾斜壁と、を備え、
前記ダッシュボードロアパネルは、
垂直壁と、
前記垂直壁の上端に形成された斜めフランジと、を備え、
前記後傾斜壁の下部に前記斜めフランジを接合し、前記垂直壁でもって前記ダッシュボードアッパパネルの車体前後方向の略中央を下方から支持することを特徴とする車体前部構造。 - 前記ダッシュボードロアパネルは、前記フロントピラーのフロントピラーインナパネルと接合する側縁フランジを備え、
前記斜めフランジは、前記側縁フランジと連続して前記ダッシュボードロアパネルの角部にL字状の防水壁を形成している、請求項1に記載の車体前部構造。 - 前記ダッシュボードアッパパネルは、車体上方から前記ダッシュボードロアパネル及び前記左右のダンパハウジングに載置するときに、前記斜めフランジに前記後傾斜壁を当接するとともに、前記前垂直壁の上端から前方に延ばした前水平フランジを、前記ダンパハウジングの後壁及び上壁にそれぞれ当接するようにした、請求項1に記載の車体前部構造。
- 前記ダッシュボードアッパパネルは、ウインドシールドを支持するウインドシールドロアサポートを備え、前記ダッシュボードアッパパネルと前記ウインドシールドロアサポートとで前方上部に向く開口が形成され、前記ウインドシールドロアサポート及び前記ダッシュボードアッパパネルは、前記開口から挟み溶接ガンの一方を挿入し、前記後傾斜壁の背面から挟み溶接ガンの他方を近接させ、前記後傾斜壁と前記斜めフランジとを挟み込み溶接可能な形状に形成されている、請求項1に記載の車体前部構造。
- 前記ダンパハウジングの下方に、車輪を覆うホイールハウスが設けられ、前記ダッシュボードアッパパネルの両端は、前記ダッシュボードロアパネル、前記ダンパハウジング及び前記ホイールハウスにより閉断面を形成している、請求項1に記載の車体前部構造。
- 前記ダッシュボードアッパパネルの上部前方に設けられたカウルトップで車幅方向に延びるよう形成された空間部内に、前記前垂直壁と前記水平底壁の前部とで車幅方向に延びる閉断面が形成されるカウル補強部材が設けられ、車体上方に向けて斜め車体後方に延びた前記後傾斜壁に沿って前記ダッシュボードロアパネルの上縁が接合されている、請求項1に記載の車体前部構造。
- 前記ダッシュボードロアパネルは、ブレーキマスタシリンダを取付けるブレーキマスタシリンダ取付部を有し、前記ダッシュボードアッパパネルは、前記ブレーキマスタシリンダ取付部の上方で、前記水平底壁が上方に向けて凹むよう形成された凹部を有し、前記カウル補強部材は、前記ブレーキマスタシリンダ取付部の上方に形成され且つ上方に向けて湾曲するよう形成された湾曲部と、車幅方向において前記ブレーキマスタシリンダ取付部から離れた部位に形成され且つ直線的に形成された直線部とに分割され、前記直線部は、前記湾曲部よりも薄板にて形成されている、請求項6に記載の車体前部構造。
- 前記カウル補強部材は、鋼板をL字状に折り曲げて補強部上壁及び補強部後壁が形成され、前記補強部上壁から前端フランジが延び、前記補強部後壁から後端フランジが延び、前記前端フランジは前記前垂直壁に結合され、前記後端フランジは前記水平底壁に結合され、前記閉断面が形成される、請求項6に記載の車体前部構造。
- 前記ダッシュボードロアパネルの前方には、ダンパユニットを支持する左右のダンパハウジングが設けられ、前記カウル補強部材の車幅方向における両端部は、前記ダッシュボードアッパパネルの前記前垂直壁に結合するスチフナに結合し、前記スチフナを介して前記ダンパハウジングの上壁に結合する、請求項6に記載の車体前部構造。
- 前記カウル補強部材の前記直線部と前記ダッシュボードアッパパネルの前記後傾斜壁との間に、断面U字状の前記ダッシュボードアッパパネルを補強するカウル開口補強部材が結合されている、請求項7に記載の車体前部構造。
- 前記カウル補強部材の前記湾曲部と前記ダッシュボードアッパパネルの前記後傾斜壁との間に、ワイパモータが取付けられるワイパ取付ブラケットが結合されている、請求項7に記載の車体前部構造。
- 前記ダッシュボードロアパネルは、室内側で車幅方向に延びるよう設けられたダッシュボードクロスメンバを備え、前記ダッシュボードクロスメンバと前記ダッシュボードロアパネルとで閉断面が形成され、前記ダッシュボードロアパネルを挟んで前記ダッシュボードクロスメンバは前記ダッシュボードロアパネルのエンジンルーム側に設けられた左右のホイールハウスに結合されている、請求項1に記載の車体前部構造。
- 前記ダッシュボードロアパネルは、前記室内側に膨出させて湾曲形状にすることにより剛性を高められ、且つ前記左右のホイールハウスの後部を形成するホイールハウス部を有しており、前記ダッシュボードクロスメンバは、前記ホイールハウス部に結合する、請求項12に記載の車体前部構造。
- 前記ダッシュボードロアパネルは、前記車体の一方側に、アクセルペダルを支持するアクセルペダルブラケットと、ブレーキマスタシリンダが取付けられるブレーキマスタシリンダ取付部とを備えており、前記ダッシュボードクロスメンバは、一方の端部を前記アクセルペダルブラケット及び前記ブレーキマスタシリンダ取付部の少なくとも一方を介して前記左右のホイールハウスの一方に結合する、請求項12に記載の車体前部構造。
- 前記ダッシュボードロアパネルは、前記車体の他方側にブレーキマスタシリンダが取付けられるブレーキマスタシリンダ取付部を備えており、前記ダッシュボードクロスメンバは、前記ダッシュボードクロスメンバの一方の端部が前記左右のホイールハウスの一方に結合するときに、他方の端部を前記ブレーキマスタシリンダ取付部を介して前記左右のホイールハウスの他方と結合する、請求項12に車体前部構造。
- 前記ダッシュボードロアパネルは、ステアリングハンガやフットパーキングペダルを含む車載取付部品を支持する支持ブラケットを備え、前記ダッシュボードクロスメンバは、前記ダッシュボードアッパパネルに前記支持ブラケットを介して連結されている、請求項12に記載の車体前部構造。
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