JPH0459492A - Assembling method for front body of car - Google Patents

Abstract

PURPOSE:To prevent the tip of a brake pedal from interfering with the front face of a body side member when a unit is to be installed led certainly by embodying the front face of the member in a shape complying with the rear face of the unit, and installing the unit through inserting in the condition that the rear face is mating with the front fence of the member. CONSTITUTION:By manual works an operator installs consolidatedly a cowl panel member 11, a wiper member located therein, And a dash member 16 on which a brake pedal 13, brake pedal bracket 14 and braking force boosting device 15 are mounted. The cowl unit accomplished through this process is inserted from above aslant ahead along the assumed plane in the condition that the rear wall part 11c of the cowl panel member 11 is mating with a slope 25 as the vertical wall part 8a of an upper member 8 of a body side cowl member 5. The rear wall part 11c is overlapped on the vertical wall part 8a, and an extension part lid is overlapped on a supporting part 8b of the upper member 8, and in this condition, the two ends of the cowl panel member 11 are secured to the vehicle body with bolts.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for assembling a front body of a vehicle, which unitizes the vicinity of a dash panel that partitions an engine room and a vehicle interior.

(Prior Art) In recent years, in automobile manufacturing, attempts have been made to unitize each part of an automobile in order to facilitate assembly work on an assembly line and reduce the number of work stations.

For example, as described in West German Patent Publication No. 3330140 and also described in Japanese Patent Application Laid-Open No. 59-206267, a cowl member, a steering device, a brake booster, and a dash panel including a brake pedal nato are integrated. It has been proposed that the unit be assembled into a vehicle body from above through the front window opening at the front of the vehicle body.

(Problem to be Solved by the Invention) However, in the above proposal, the unit is inserted and assembled from the upper side of the vehicle body through the front window opening. A cowl member is included to ensure rigidity, and even if the unit is attached to the vehicle body, the cowl member is not welded to the vehicle body as in the past, so in the event of a frontal collision, Compared to a non-unitized structure, the ability to support collision forces is weak, and there is a risk that the entire unit may move into the rear passenger compartment.

Therefore, we provided a vehicle body side member with a closed section structure that extends in the vehicle width direction between the left and right front pillars of the vehicle body, and installed a steering device on the vehicle body side that interferes with the vehicle body side member when the unit is inserted from the top of the vehicle body through the front window opening. It was attached to a component and its steering device was removed.

The cowl member, brake booster, brake pedal, etc. are integrated into a unit, and the unit is assembled to the vehicle body side member from above through the front window opening while ensuring sufficient force to support the collision force in the event of a frontal collision. It is possible to do so.

However, the above-mentioned ones are caused by the influence of the recent trend toward short noses. Due to the positional relationship in the longitudinal direction of the vehicle body between the cowl member that supports the lower end of the front windshield and the brake pedal, the tip (rear end) of the brake pedal located at the lower end of the unit is closer to the vehicle body than the rear end surface of the cowl member located at the upper end of the unit. It will be located at the rear. Therefore, when the unit is assembled to the vehicle body member from above through the front window opening, the tip of the brake pedal interferes with the front surface of the vehicle body member.

The present invention has been made in view of these points, and its purpose is to make the front surface of the vehicle body side member conform to the rear surface of the unit, and to make the rear surface of the unit correspond to the front surface of the vehicle body side member. By inserting and assembling the brake pedal in the same state, this system reliably prevents the tip of the brake pedal from interfering with the front surface of the vehicle body side member when the unit is assembled to the vehicle body side member from above through the front window opening. It is.

(Means for Solving the Problems) In order to achieve the above object, the solution means of the present invention is such that a cowl unit having at least a cowl member, a brake booster, and a brake pedal moves between the left and right front pillars of the vehicle body in the vehicle width direction. As a method of assembling the front body to a vehicle body side member having a closed cross-section structure extending over the front side, the front side of the vehicle body side member is connected in advance to the top end of the rear surface of the cowl unit and the tip of the brake pedal located at the bottom end of the rear surface. The inclined surface is formed so that the lower side is positioned further back so as to substantially match the inclined virtual surface. a step of assembling a brake booster and a brake pedal to the cowl member to form a cowl unit; and a step of assembling the cowl unit diagonally forward and upward with the rear surface corresponding to the inclined surface of the front surface of the vehicle body side member. The structure includes a step of inserting and arranging the device.

(Function) With the above configuration, in the present invention, the cowl unit completed by assembling the brake booster, brake pedal, etc. to the cowl member has a closed cross-sectional structure extending in the vehicle width direction between the left and right front pillars of the vehicle body. at the front of the vehicle body side member.

It is assembled by inserting it obliquely from the front and upper side with the rear surface corresponding to the inclined surface positioned further rearward toward the bottom. For this reason, due to the positional relationship in the longitudinal direction of the vehicle body between the cowl member that supports the lower end of the front windshield and the brake pedal due to the influence of the recent trend toward short noses, etc., the rear end surface of the cowl member located at the upper end of the cowl unit (unit) is Even if the tip of the brake pedal located at the lower end of the cowl unit is located on the rear side of the vehicle body, when the cowl unit is assembled to the vehicle body side member from above through the front window opening, the tip of the brake pedal may be placed in front of the vehicle body side member. There will be no interference.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

In FIG. 1 showing the relationship between a vehicle body and a unit, 1 is a vehicle body, and a vehicle body side cowl as a vehicle body side member extending in the left-right direction of the vehicle body is mounted on the upper part of a dash panel 4 that partitions an engine room 2 and a vehicle interior 3. A member 5 is provided. Both ends of the vehicle body side cowl member 5 are fixed to the left and right front pillars 6.6 of the vehicle body 1, connecting them. Note that a portion of the dash panel 4 is removed to form an opening 4a.
It becomes. 77 is the left and right front fender.

The cowl unit U1 is disposed on the front side of the vehicle body side cowl member 5, and the instrument panel unit U2 is disposed on the rear side, respectively, and both ends of each unit Ul, U2 are fastened and fixed to the vehicle body 1.

As shown in FIG. 2, the vehicle body side cowl member 5 has a closed cross-sectional structure in which an upper panel 8 and a lower panel 9 are joined. The upper panel 8 constituting the vehicle body side cowl member 5 has a vertical wall portion 8 serving as a front surface extending in a downward direction on the road.
a, a support portion 8b extending rearward from the upper edge of the vertical wall portion 8a and supporting the vicinity of the underlined portion of the front windshield 10;
The lower panel 9 includes a vertical wall portion 8 of the upper panel 8.
a lower flange portion 9a joined to the lower edge of the flange portion 9a; a bent portion 9b extending rearward from the upper edge of the flange portion 9a and bent downwardly; It consists of an upper flange portion 9C that extends rearward and is joined to the upper wall portion 8c.

The cowl unit Ul includes a cowl panel member 11 as a cowl member with an open top, a wiper member 12 installed in the cowl panel member 11, a brake pedal 13, a brake pedal bracket 14, and a brake booster 15. The dash member 16 has a dash member 16 attached thereto. In this case, the vehicle body 1 has been made to have a short nose, which is a recent trend, and due to this influence, the positional relationship in the longitudinal direction of the vehicle body between the cowl member that supports the lower end of the front windshield and the brake pedal has changed. The cowl unit U1
The tip (rear end) of the brake pedal, which is located at the lower end of the brake pedal, is located toward the rear of the vehicle.

The cowl panel member 11 includes a front wall portion 11a to which the brake booster 15 is attached and fixed, a bottom wall portion 11b extending rearward from the lower edge of the front wall portion 11a, and a bottom wall portion 11b extending from the rear edge of the bottom wall portion 11b. Upper panel extending upward (vehicle body side cowl member 5)
A rear wall portion 1 as a rear surface superimposed on the front side of the vertical wall portion 8a of
1c, and an extension portion 11d that extends rearward from the upper edge of the rear wall portion 11c and overlaps with the upper side of the earthen wall portion 8c of the upper panel 8. Therefore, in the installed state, the cowl panel member 11 is located in front of the vehicle body side cowl member 5, and the cowl panel member 11 and the vehicle body side cowl member 5 constitute a cowl box having a conventional structure.

The vertical wall portion 8a of the upper panel 8 of the vehicle body side cowl member 5 is connected in advance to the rear wall portion 11c of the cowl panel member 11 located at the upper end of the rear surface of the cowl unit U1, and the rear wall portion 11c of the cowl panel member 11 located at the lower end of the rear surface of the cowl unit Ul. pedal 13
The inclined surface 25 is positioned rearward toward the bottom so as to substantially coincide with the forward-inclined imaginary surface 9 (dotted chain line shown in FIG. 2) connecting the front end (rear end) of the front end.

Further, the dash member 16 is fixed to the lower side of the cowl panel member 11 at a position corresponding to the opening 4a of the dash panel 4, and when the cowl unit U1 is attached to the vehicle body 1, It closes off and forms a part of the dash panel 4, and is bonded to the peripheral edge of the opening 4a via a urethane adhesive 17.

Further, the dash member 16 has a convex portion 16a projecting forward, and the spacer member 19.
A vertical wall portion 14a of a brake pedal bracket 14 that supports the brake pedal 13 is connected and fixed via a bolt 19 via a bolt 20. Further, the upper wall portion 14b of the brake pedal bracket 14 is also connected and fixed to a screw member 21 protruding downward from the bottom wall portion 11b of the cowl panel member 11 with a nut 23 via a spacer member 22, so that the brake pedal The support rigidity of 13 is ensured.

As shown in FIGS. 3 and 4, both ends 11a and l1g of the cowl panel member 11, which are both ends of the cowl unit U1, are attached to bolts 33 to the vehicle body 1 together with a bonnet hinge 32 that supports the bonnet 31 so that it can be opened and closed. It is fastened using .33.

The vehicle body 1 includes nuts 3 into which the bolts 33 and 33 are screwed onto the upper surface (inner panel 35b) of the side wall 35 formed by joining an outer panel 35a and an inner panel 35b.
4.34 is welded.

A hinge bracket 38, which is attached and fixed to the bonnet 31 using bolts 36 and nuts 37, is rotatably attached to the bonnet hinge 32 via a shaft member 39. A reinforcement 40 is attached to a portion where the hinge bracket 38 is attached and fixed.

Further, the instrument panel unit U2 includes an instrument panel 41, a steering device 42, and an air conditioning unit 43 (see FIG. 1). Above instrument panel 4
An instrument panel member 44 having a cylindrical cross section extending in the left-right direction is disposed on the front side of the instrument panel member 1. As shown in FIGS. 5 and 6, mounting brackets 45 are provided at both ends of the instrument panel member 44.
is permanently installed. On the other hand, on the vehicle body 1 side, the door opening 1a
In the lower side of the front pillar 8, a side frame outer 46 and a hinge pillar inner 47 are joined to form a closed cross-section structure extending in the vertical direction of the vehicle body, and the hinge pillar inner 47 has a hollow instrument panel projecting into the vehicle interior. A bracket 48 is fixed. Instrument panel bracket 48
A nut 49 is fixed to the inner surface of the instrument panel bracket 48, and the mounting bracket 45 of the instrument panel member 44 is fastened and fixed to the nut 49 of the instrument panel bracket 48 by bolts 50.

After the instrument panel unit U2 is fastened and fixed to the vehicle body 1, the instrument panel side 51 is attached to the instrument panel unit U2. Note that 52 is a side demister.

Further, the upper shaft 61 (steering shaft) of the steering device 42 is attached to and supported by the instrument panel member 44 via a support member 62, as shown in FIG. Further, a hollow mounting bracket 63 is attached to the lower end of the upper shaft 61. Further, a hollow mounting bracket 65 is attached to the upper end of a lower shaft 64 (steering shaft) linked to a front wheel steering device (not shown) on the engine room side, and the mounting bracket 65 is connected to the mounting bracket 64 above. 63 and is fastened and fixed to the dash panel 4 with bolts 66 and nuts 67. This ensures the support rigidity of the steering shaft (upper shaft 61 and lower shaft 64).

Inside the mounting brackets 63 and 65, the connecting portion 61a of the upper shaft 61 and the connecting portion 64 of the lower shaft 64
A connection is made with a. In FIG. 2, 68 and 69 are harnesses, and 7o is an insulator installed on the interior side of the dash panel 4.

The front windshield 1o is attached to the window opening 1a of the vehicle body 1 using urethane adhesive 71 after at least the cowl unit U1 is attached to the vehicle body 1 (see FIG. 2). ). The urethane adhesive 71 is applied to at least the support portion 8b of the upper member 8 of the cowl member 5 on the vehicle body side and the extension portion 11d of the cowl panel member 11, so as to seal the joint between the cowl panel member 11 and the vehicle body 1. It has become.

As shown in FIG. 7, fastening portions 16b, 16b to the vehicle body 1 are formed near both ends of the dash member 16, and an accelerator pedal 72 is also provided adjacent to the brake pedal 13. Ll is a trim line on the cowl unit Ul side, and L2 is a trim line on the vehicle body 1 side.

The above units U+ and U2 are assembled as follows.

First, an operator manually removes the cowl panel member 11 and the wiper member 1 installed inside the cowl panel member 11.
2 and the dash member 16 to which the brake pedal 13, the brake pedal bracket 14, and the brake booster 15 are attached. The rear wall portion 11C of the cowl panel member 11 is inserted diagonally from the front upper side along the imaginary plane 9 with the rear wall portion 11C of the cowl panel member 11 corresponding to the inclined surface 25 that is the wall portion 8a, and the rear wall portion 11c of the cowl panel member 11 is inserted into the upper member 8. The extended portion 1 of the cowl panel member 11 is superimposed on the vertical wall portion 8a of the cowl panel member 11.
1d on the supporting portion 8b of the upper member 8, and in this state, both ends 11e of the cowl panel member 11 are attached with bolts 33°33.

11e is fastened and fixed to the vehicle body 1. This is due to the influence of the recent trend towards short noses.

The rear wall portion of the cowl panel member 11 is located at the upper end of the cowl unit Ul due to the positional relationship in the longitudinal direction of the vehicle body between the support portion 8b of the upper member 8 of the vehicle-side cowl member 5 that supports the vicinity of the lower end portion of the front windshield 10 and the brake pedal 13. Even if the tip of the brake pedal 13, which is located at the lower end of the cowl unit U1 than 11c, is located on the rear side of the vehicle body, when assembling the cowl unit U1 to the vehicle body 1 (vehicle side cowl member 5) from above through the front window opening. It is possible to reliably prevent the tip of the brake pedal 13 from interfering with the vertical wall portion 8a of the upper member 8.

Thereafter, the instrument panel unit U2 is inserted into the vehicle interior through the door opening 1a of the vehicle body 1, placed behind the vehicle body side cowl member 5, and the instrument panel unit U2 is secured with bolts 50 and 50.
The mounting bracket 45 on the second side is fastened and fixed to the instrument panel bracket 48 on the vehicle body 1 side.

Further, the dash member of the cowl unit U1 and the dash panel may be fastened and fixed as shown in FIG. 8.

Several points on the peripheral edge of the dash member 82 fixed to the lower side of the cowl panel member 81 are fastened to the dash panel 83 with bolts 84 and nuts 85. At the same time, a convex portion 82a that protrudes toward the interior of the vehicle is formed on the peripheral edge of the dash member 82, and a stepped portion having an L-shaped cross section is formed on the peripheral edge of the opening 83a of the dash panel 83 corresponding to the convex portion 82a. 83b, and a urethane adhesive 84 is interposed between the dash member 82 and the dash panel 83 at the stepped portion 83b. This allows simultaneous sealing in the front-back and left-right directions. The urethane adhesive 84 may be applied to the dash member 82 on the cowl unit U+ side, or may be applied to the dash panel 83 on the vehicle body side.

Further, an overlapping portion between the dash member 82 and the dash panel 83 is formed at a position above the convex portion 82a, and insulators 85 and 86 are installed on the side surfaces of the vehicle interior, thereby creating an opening in the dash panel 83. 83a
This prevents deterioration of sound insulation due to the installation of

Note that 87 is a grill panel (cowl grill), 88 is a connecting member, 89 is an insulator, 90 is a front window glass, and 91 is a urethane adhesive.

In the above embodiment, the cowl box that extends in the left-right direction of the vehicle body and constitutes the lower edge of the front window opening is composed of the vehicle body side cowl member 5 and the cowl panel member 11, and the conventional cowl panel is connected to the vehicle body cowl member 5 side and the cowl panel member 11. Panel member 11
However, in this way, without dividing the cowl panel, a connecting member with a closed cross-section structure is provided on the vehicle body side in place of the vehicle body side cowl member, and a connecting member with a closed section structure is provided on the cowl unit Ul side. A cowl panel may also be provided.

Further, in the above embodiment, the cowl unit U+ is fastened and fixed to the vehicle body 1 before the instrument panel unit U2, but on the contrary, the instrument panel unit U2 may be fastened and fixed to the vehicle body first.

(Effects of the Invention) As described above, according to the method for assembling the front body of a vehicle according to the present invention, the cowl unit in which the brake booster and the brake pedal are assembled to the cowl member is attached to the lower part of the front side of the body side member. The cowl unit, which is located at the tip of the brake pedal or at the rear of the vehicle body relative to the rear end surface of the cowl member, was inserted diagonally from the upper front side and assembled with the rear surface corresponding to the sloped surface positioned at the rear of the cowl. When assembling to the vehicle body side member from above through the window opening,
It is possible to reliably prevent the tip of the brake pedal from interfering with the front surface of the vehicle body side member.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a perspective view showing the relationship between the vehicle body and each unit; FIG. 2 is an explanatory diagram showing how to assemble the cowl unit to the vehicle body; and FIG. 3 is an illustration of the cowl unit. FIG. 4 is a cross-sectional view of the side portion of the cowl unit that is fastened to the vehicle body, FIG. 5 is a diagram showing the mounting structure of the instrument panel unit to the vehicle body, and FIG. FIG. 5 is a sectional view taken along the line A-A in FIG. 5, FIG. 7 is a front view of the cowl unit attached to the vehicle body as seen from the engine room direction, and FIG. 8 is a sectional view of a modified example. Ul... Cowl unit... Vehicle body 5... Vehicle body side cowl member (vehicle body side member) 6... Front pillar 8a... Vertical wall portion (front) 11... Cowl panel member (cowl member) 11c...
・Rear wall (upper end of rear surface) 13... Brake pedal 15... Brake booster 25... Inclined surface 9... Virtual surface and 1 other person Figure 4

Claims (1)

[Claims] (1) A method for assembling a front vehicle body in which a cowl unit having at least a cowl member, a brake booster, and a brake pedal is assembled to a vehicle body side member having a closed cross-section structure extending in the vehicle width direction between the left and right front pillars of the vehicle body. Therefore, the front surface of the vehicle body side member is positioned in advance so that the lower side of the cowl unit is positioned further rearward so as to substantially coincide with the forward-inclined imaginary plane that connects the upper end of the rear surface of the cowl unit and the tip of the brake pedal located at the lower end of the rear surface of the cowl unit. The cowl unit is formed on an inclined surface, and includes a step of assembling a brake booster and a brake pedal to the cowl member to form a cowl unit, and a step of aligning the rear surface of the cowl unit with the inclined surface of the front surface of the vehicle body side member. 1. A method for assembling a front body of a vehicle, comprising the step of inserting and arranging it diagonally from the front upper side in a state in which the front body of a vehicle is placed.