JPH05155365A - Automotive body assembling method - Google Patents

Abstract

PURPOSE:To enhance the degree of coupling among respective unit bodies by coupling a front unit body with a floor unit body so as to form a floor unit body, and thereby coupling the floor unit body with an upper unit body fitted out in advance. CONSTITUTION:In a floor unit body 5, a front end extension part 12a of a floor frame 12, which is to be joined to a front frame 11 is extended in such a way as to be curved forward and upward from the front end of a floor member 4. A floor unit body 3 high in stiffness can be formed with the front unit body 3 combined with the floor unit body 5 with a high degree of coupling following the joining of the rear end of the front frame 11 to the front end extension part 12a of the floor frame 12. In the second place, the floor unit body 13 is fitted out if necessary, the floor unit body 13 is then combined with an upper unit body 9 fitted out in advance, so that a car body 1 may be assembled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body assembly method.

[0002]

2. Description of the Related Art In recent years, in the manufacture of automobiles, various attempts have been made to unitize the vehicle body or each part of the automobile in order to facilitate the assembly work on the assembly line and reduce the work station. For example, JP-A-63-23517
As described in Japanese Unexamined Patent Publication No. 4 (1998), a vehicle body includes a front unit body having a dash panel and forming an engine room, a lower unit body having a floor member, and a roof.
It is known that an upper unit body having a right side member and left and right body side panels is divided and these three unit bodies are connected to each other.

[0003]

By the way, in the above-mentioned prior art, since the respective bodies are simply coupled, the coupling strength between the respective units is low.

The present invention provides a method for assembling a vehicle body of an automobile in which the coupling strength between the units is high.

[0005]

According to a first aspect of the present invention, a vehicle body includes a front unit body having an engine room, a floor unit body having at least a floor member, a roof member and left and right body side panels. And a floor frame joined to the front frame extending forward from the front end of the floor to the rear end of the front frame and the front end of the floor frame. The front unit body and the floor unit body are joined together to form the lower unit body, and each unit is outfitted at least in the preceding step of the joining, and then these unit bodies are previously outfitted. The structure is such that it is connected to the upper unit body.

According to a second aspect of the present invention, the lower unit body and the upper unit body are coupled to each other by inserting the lower unit body from the front side relative to the upper unit body, and the vehicle width of the floor member of the lower unit body. The side portion in the direction is engaged with the engaging portion at the lower edge of the body side panel of the upper unit body to be coupled. According to a third aspect of the present invention, one of the side portion and the engaging portion is formed in a recess extending in the front-rear direction of the vehicle body, and the other is formed in a projection slidably fitted in the recess.
When the lower unit body is relatively inserted into the upper unit body, the concave portion and the convex portion are fitted to each other to guide the relative insertion of the lower unit body.

[0007]

According to the first aspect of the present invention, the floor unit body is provided with the floor frame joined to the front frame from the front end of the floor to the front, and the rear end of the front frame and the floor frame. Since the lower unit body is formed by joining the front unit body and the floor unit body together with the joining with the front end, the joining strength between the front unit body and the floor unit body is increased.

According to the second aspect of the present invention, the lower unit body is inserted into the upper unit body from the front side, and the side portion of the floor member of the lower unit body in the vehicle width direction is attached to the lower edge of the body side panel of the upper unit body. By assembling the lower unit body by engaging with the engaging portion of No. 1, it is not necessary to support the lower unit body until the lower unit body is joined as in the conventional case.

According to the third aspect of the present invention, one of the side portion and the engaging portion is formed in a concave portion extending in the vehicle front-rear direction, and the other is formed in a convex portion slidably fitted in the concave portion. Therefore, when the lower unit body is inserted into the upper unit body, the fitting of the concave portion and the convex portion guides the insertion of the lower unit body.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a vehicle body, which is an engine lure.
A front unit body 3 having a floor 2; a floor unit body 5 having at least a floor member 4;
And an upper unit body 9 having left and right body side panels 7 and 8.

On the floor unit body 5, a front end extension 12a of the floor frame 12 joined to the front frame 11 is extended from the front end of the floor member 4 so as to curve forward and upward. .. The above front frame
The rear end of the frame 11 and the front end extension 12a of the floor frame 12
As the front unit body 3 and the floor unit body 5 are joined together, the lower unit body 13
Are formed, but at least in the preceding step of the joining, the above units 3 and 5 are outfitted. As shown in FIGS. 2 and 3, the rear end of the front frame 11 and the front end extension 12a of the floor frame 12 are joined to each other within the front frame 11 having the closed cross-section structure.
The front end extension 12a of 2 is inserted and joined via an adhesive, and the front unit body 3 and the floor unit body 5 are joined with high joining strength, and the rigidity of the lower unit body 13 is improved. It doesn't hurt. If necessary, bolts and nuts may be used together.

Next, these unit bodies 3 and 5, that is, the lower unit body 13 are connected to the upper unit body 9 which is previously fitted.

The front unit body 3 has a dash panel 15 for partitioning the engine room 2 and the passenger compartment 14, and the dash panel 15 has a cowl box 17 for supporting a front window 16 on an upper portion thereof. In addition to being provided so as to extend in the width direction, an instrument panel unit 42 (see FIG. 7) equipped with various instruments including the steering 41, pedals, and an accessory such as an insulator are attached. Further, the rear ends of the front frames 11 and 11 are connected to the dash panel 15. The upper unit body 9 is also provided with an instrument panel member 17 (steering support member).

Next, the method of assembling the vehicle body will be described. The vehicle body 1 is divided into a front unit body 3 having an engine room 2, a floor unit body 5, and an upper unit body 9.

Then, each unit body 3, 5, 9 is equipped with a fitting. In particular, since the front unit body 3 and the floor unit body 5 are divided in the vicinity of the dash panel 15, the so-called instrument panel vicinity can be outfitted not only in the left-right direction but also in the up-down direction, which facilitates the operation. it can.

After finishing the outfitting, the front frame
By inserting the front end extension 12a of the floor frame 12 into the rear end of the frame 11 and adhering it, and fastening them with bolts and nuts as necessary, the front unit body 3 and the floor unit body 5 are highly coupled. The lower unit body 13 having high rigidity can be formed by combining the members with strength.

Then, if necessary, the lower unit body 13 is outfitted, and then the lower unit body 13 is fitted.
Is connected to the upper unit body 9 which is separately outfitted beforehand, so that the vehicle body 1 is assembled.

Further, in addition to simply connecting the front unit body 3 and the floor unit body 5, FIG.
As shown in FIG. 6, in the joining portion between the front unit body 3A and the floor unit body 5A, a recess 4a extending in the left-right direction is formed in the floor member 4A.
a, the instrument panel member 21 and a pair of support members 22, 22
It is also possible to further increase the bonding strength of both units 3A and 5A by fitting and bonding and fixing the connecting member 23 that is supported thereby. At both ends of the instrument panel member 21, mounting portions 21a, 21 are mounted on a cowl side (not shown) or the like.
a is provided, the coupling member 23 has a closed cross-section structure, the central portion is bent upward corresponding to the tunnel portion 4b of the floor member 4, and the support members 22 and 22 are erected above the portion. There is.

As shown in FIGS. 7 to 10, the lower unit body and the upper unit body are connected to each other by inserting the lower unit body relative to the upper unit body from the front side of the lower unit body. You can also do it.

That is, the lower unit body 13A formed by connecting the front unit body and the floor unit body
Is inserted from the front side relative to the upper unit body 9A, and the left and right side portions in the vehicle width direction of the front floor member 31 of the lower unit body 13A are connected to the left and right body side panels 32, 32 of the upper unit body 9A. Both unit bodies 9A and 13A are assembled to the lower edge by engaging the rear edge of the front floor member 31 with the front edge of the rear floor member 33 of the upper unit body 9A. After this assembly, the assembly body 38 is assembled to the vehicle body 1A by subassembling the power unit 34 such as an engine, the suspension 35 of each wheel, the exhaust device 36, and the fuel tank 37.

The front floor member 31 has a honeycomb structure made of aluminum or the like as shown in FIG. 10 so as to be lightweight and have sufficient strength. Front seats (driver's seat and passenger seat)
43, 43 are installed.

And, such a lower unit body 1
For 3A, after assembling the upper unit body 9A and the assembly body 38, the front fender panel 45 is attached to the outside of the hoodage panels 44, 44 forming the left and right sidewalls of the engine room 2. An engine hood 46, a front bumper unit 47 and the like, which cover the upper portion of the engine room, are assembled. Incidentally, 48
Is a dash panel, and 49 and 49 are front frames.

On the other hand, on each body side panel 32 of the upper unit body 9A, two front and rear door openings 4 are provided.
1, 42 are provided, and the lower unit body 1 is provided.
After assembly with 3A, a front door 43 is attached to the front door opening 41 and a rear door 44 is attached to the rear door opening 42 so that they can be opened and closed. The body side panel 32 includes a front pillar 45 that forms a front edge of the door opening 41, a center pillar 46 that forms a rear edge of the door opening 41 and a front edge of the door opening 42, and a door. A rear pillar 47 that forms the rear edge of the opening 42 and a side sill 4 that forms the lower edges of the door openings 41 and 42.
8 and. 49 is a roof member.

As shown in FIG. 10, the side sill 48 has a closed cross-section structure formed by extruding aluminum. The side sill 48 has a pair of upper and lower protrusions that protrude inwardly on the side surface of the side sill 48 on the vehicle interior side. The pieces 51, 51 are integrally formed in the longitudinal direction of the side sill 48 (that is, the vehicle body front-rear direction). The projecting pieces 51, 51 form a recess 52 extending in the vehicle front-rear direction together with the side surface of the side sill 48 on the vehicle interior side, and the recess 52 has an edge as a projection of a side portion of the front floor member 31. When the lower unit body 13A is inserted into the upper unit body 9A when the portion 31a is slidably fitted,
The fitting of the concave portion 52 and the edge portion 31a is configured to guide the insertion of the lower unit body 13A. The edge 31a is fixed in the recess 52 with an adhesive 53.

The rear floor member 50 of the upper unit body 9A is made of a thin plate as shown in FIG. 11, and a rising portion that rises rearward and upward from the engaging portion with the rear edge of the front floor member 31. 50a and the rising portion 50
It has a horizontal surface portion 50b extending substantially horizontally rearward from the upper end of a. The front floor member 31 is reinforced by cross members 54, 55, side frames (not shown), etc., and the horizontal surface portion 50 b of the rear floor member 50 is also reinforced.
A rear seat 56 is installed above. A trunk lid 57 that covers the trunk room is attached to the upper unit body 9A.

As shown in FIG. 11, the engagement structure between the front floor member 31 and the rear floor member 50 is, for example, as shown in FIG. 11, on the front side of the front joint 58 between the rear floor member 50 and the cross member 54, both members 50, An engaging portion 59 having a U-shaped cross-section that is open to the front and formed of 54 is formed, and the rear edge portion of the front floor member 31 is fitted in the engaging portion 59.

Next, the connection between the upper unit body 9A and the lower unit body 13A will be described.

First, the front unit body and the floor unit body are combined to form the lower unit body 13A, and then the upper unit body 9 is formed as shown in FIG.
The adhesive 53 is applied in the recess 52 of the side sill 48 below each body side panel 32 in A and in the engaging portion 59 at the front edge of the rear floor member 50, respectively.

Subsequently, the edge portion 31a of the front floor member 31 of the lower unit body 13A is placed in the recess 52 on the upper unit body 9A side.
The front floor member 31 of the lower unit body 13A is inserted between the left and right body side panels 32, 32 of the upper unit body 9A in this fitted state. Then, when this insertion is completed, the rear edge portion of the front floor member 31 is engaged with the inside of the engaging portion 59 of the rear floor member 50. As a result, the left and right edge portions 31a and the rear edge portion of the front floor member 31 are both engaged with the upper unit body 9A, and the lower unit body 13A and the upper unit body 9A are assembled to each other.

In the case of such an assembling method, the lower unit body 13A (front floor member 31) has a different insertion direction (front-back direction of the vehicle body) and a support direction due to engagement (up-down direction). Lower unit body 13
Not only does the insertion of A and thus the assembly not hinder, the lower unit body 13 is provided by this engagement structure.
A can be supported at the inserted position. For this reason,
It is not necessary to support the lower unit body 13A until the lower unit body 13A is joined as in the conventional case, and the adhesive 53 can be easily used as a joining method for the both unit bodies 9A and 13A.
The number of fastening points such as bolts can be reduced as much as possible, and the assembling work can be facilitated and speeded up.

In addition, when the lower unit body 13A is inserted, the lower unit body 13A remains fitted with the edge portion 31a of the front floor member 31 and the upper unit body 9A side recess 52. Body 1
Since 3A is guided in the inserting direction, the inserting or assembling workability can be surely and quickly performed. Further, as in this embodiment, if the adhesive 53 is applied to the inside of the recess 52 or the like prior to the insertion of the lower unit body 13A, it is quickly fixed to the upper unit body 9A after the insertion of the lower unit body 13A. Therefore, the assembling workability can be further improved, and the fixing by the adhesive 53 can be easily confirmed from the resistance at the time of insertion.

When the lower unit body is inserted from the front side relative to the upper unit body, the upper unit body is fixed, and the lower unit body is moved rearward so as to come close to the upper unit body and then inserted. Without
On the contrary, the lower unit body may be fixed, and the upper unit body may be moved forward so as to approach the lower unit body for insertion.

Next, the vehicle assembly process will be described with reference to FIGS. 12 to 21. In this vehicle assembly process, the outfitting line including the exclusive outfitting line of the upper unit body 9 is configured as a main outfitting line, and as shown in FIG. 12, the outfitting line is outfitted to each of the main outfitting lines. The front unit body 3 and the floor unit body 5 are supplied with the vehicle body members such as lid members and the outfitting in order, and these are assembled to the upper unit body 9 to assemble the automobile.

First, a dedicated equipment line for each vehicle body member will be described.

In the equipment line dedicated to the upper unit body 9, as shown in FIG. 13, the upper unit body 9 is set on the carrier vehicle device 110 and is transported along the equipment line while being mounted on the carrier vehicle device 110. By the provided outfitting robot 115, a screw grommet, a fastener, a harness, and an interior unit (top sealing,
Sun visor, room mirror, etc.), rear strut, rear combination lamp, package unit (package)
(Including trim trim, speaker, high mount lamp, etc.), rear bumper, rear floor mat, riashito,
Assemble the accessories such as the trunk room unit and rear window glass.

The transport carriage device 110 will be briefly described. An automatic transport carriage 114 that travels along an outfitting line is provided, and a plurality of carriages for holding the upper unit body 9 in a fixed position are provided on the transport carriage 114. A support bracket 116 is installed upright, and a robot 115 that is inserted into the vehicle compartment 14 of the upper unit body 9 from the floor opening is provided at the center of the carriage 114.
Sub-pallets 117 are provided on both left and right sides of the robot, a plurality of outfittings are set in each sub-pallet 117 in a predetermined arrangement, and a tool installation table 118 is provided on the left side of the robot 115.
Is provided outside the upper unit body 9, and a plurality of tools detachably attached to the hand of the robot 115 are set in a predetermined arrangement on the tool installation base 118. Since the robot 115 is an articulated robot having a general configuration, its detailed description is omitted.

A robot 115 is provided at the rear of the carriage 114.
A control box 119 for controlling the control unit 119 is provided, and the robot 115 uses the control box 119.
Is controlled on the basis of a command from the above, the fittings are assembled to the upper unit body 9 while moving the carrier 114, so that the robot 115 can be inserted from the floor opening of the upper unit body 9, Since the work of assembling the fittings into the chamber 14 is largely automated and the fittings are efficiently performed, there is almost no dead time in the fitting line for carrying between stations. However, it goes without saying that the outfittings may be assembled while intermittently moving the carriage 114 over a plurality of stations. If necessary, the upper unit body 9 is transferred to a carrier vehicle device 112 having a rotary support mechanism for rotatably supporting the upper unit body 9 as shown in FIG. Unit body 9
It is also possible to assemble the fittings such as the top seal 61 and the like to the upper unit body 9 by the automatic machine 113 provided on the line side in a state in which is rotated by a predetermined angle.

Further, since the robot 115 is installed on the transfer carriage 114 together with the upper unit body 9, the positioning accuracy of the robot 115 with respect to the upper unit body 9 can be maintained at a high level, so that the automatic outfitting by the robot 115 is smooth. be able to. In addition, since the robot 115 and the carrier 114 can be removed from the outfitting line when they are out of order, it is possible to prevent a decrease in the operating rate of the outfitting line, and also when the outfitting line changes due to a model change. Robot 115
Teaching can also be applied to. Furthermore, trials can be performed outside the outfitting line when the robot 115 or the carrier 114 is newly installed or repaired.

In the exclusive equipment line for the floor unit body 5, as shown in FIG. 15, the floor unit body 5 is positioned and fixed on a pallet (not shown), and the equipment is sequentially installed over a plurality of stations of the equipment line. To the floor unit body 5 and change lever 15
0, parking blur killer-151, floor mat 1
52, rear palm belt 153 and rear console 154
Etc., then attach small parts such as fasteners and bolts with a robot (not shown), then left and right front seats 4
3, 43 are assembled by a robot (not shown), and then the front seat 4
Four sheet protectors 15 covering 3,43 feet
Assemble 6. In this way, the upper-unit body 9
Since the fittings are assembled to the floor unit body 5 in a dedicated fitting line in a state of being separated from the above, the work efficiency of assembling the fittings can be significantly increased by adopting a robot or the like.

In the exclusive equipment line for the front body unit 3, as shown in FIG. 16, with the front unit body 3 set on the carrier vehicle device 120, the equipment lines are sequentially transferred to the accelerator pedal and the brake pedal. -Assemble equipment such as a key pedal, a wiper motor, a dash unit (including an instrument panel assembly, an air conditioning unit, etc.) 157.

The carrier vehicle device 120 is provided with a support mechanism 123 capable of switching the posture of the front unit body 3 between a substantially horizontal horizontal state and an inverted posture shown by a solid line. By changing the posture, the line side automatic machine 122 carries out the work of assembling the fittings. The dash unit 157 and the like are positioned and mounted on the front unit body 3 which is held in an inverted posture by the line side supply device 121, and are assembled to the front unit body 3 by the line side automatic machine 122. As described above, since the posture of the front unit body 9 is changed and the fittings are assembled, the work efficiency of the assembling work can be significantly improved, and the holding for holding the fittings with respect to the front unit body 9 can be achieved. The mechanism etc. can be omitted.

In a dedicated equipment line for front and rear doors, front fenders, bonnets and trunk lids, after black coating, application of secondary rust preventive oil, installation of mole and rubber, etc., harness, Install necessary fittings such as lamps and wind regulators. As described above, since the necessary outfittings are assembled in the exclusive outfitting line with the lid member removed from the upper unit body 9, the work efficiency of these can be remarkably improved.

Next, a joining process for joining the upper unit body 9 and the lower unit body 13 will be described.

First, as shown in FIG. 17, the front unit body 3 is assembled relative to the floor unit body 5 from the front side, and the front end extension 12a of the floor frame 12 is attached to the front frame 11. The lower unit body 13 integrated by assembling the unit bodies 3 and 5 is inserted into the end portion as described above. The unit bodies 3 and 5 are connected by bolt / nut connection, adhesive connection, welded connection, or combination of these.

Next, as shown in FIGS. 18 to 20, the lower unit body 13 is set on the movable carriage 125 of the connecting station CS1, and the upper unit body 9 is hangered.
It is suspended by 127 and fixed to a pair of left and right fixed bases 120 of the combined station CS1, and the movable carriage 125 is assembled from the front relative to the upper unit body 9 from the front to the rear in the vehicle front-rear direction. The floor member 31 (or 1
4) the left and right ends of the left and right engaging portions 52 of the side sill 48
Of the floor member 31, the left and right ends of the floor member 31 are engaged with and supported by the engaging portions 52, and fixed by the adhesive 53 of the engaging portions 52. In parallel with this, the cross-sectional structures 71A and 71B forming the hinge pillar 71 are combined in the front and rear, and the other joining portion of the floor member 31 and the upper unit body 9 (by the fastening robot 128 or the like provided between the fixed bases 126). For example, the vehicle body is assembled in this way by connecting the rear end portion of the floor member 31) and the closed cross-section structures 71A and 71B. In addition, this connection is a bolt
A nut bond, an adhesive bond, a weld bond, or a combination of these is adopted. When a cowl member is attached to the upper unit body 9, the seat back of the front seat 43 is pushed backward by a reclining device so that the upper end of the front seat 43 does not interfere with the cowl member. As a result, the upper unit body 9 and the lower unit body 13 are combined.

Next, the assembly body 3 is attached to the vehicle body 1.
In the assembly body assembling step of assembling 8, the engine 34, the transmission (not shown), the front and rear suspensions 35, the exhaust pipe 36, which are previously positioned and fixed on the pallet 129 by the sub line, are shown in FIG. The assembly 38 including the fuel tank 37 and the fuel tank 37 is transferred onto the conveyor 130 of the joint station CS2, and
The vehicle body is hung by a supporting arm 131 of a lifting device (not shown), transferred to the connecting station CS2, and the vehicle body is lowered to assemble the assembly body 38 relative to the vehicle body 1 from below. Since the assembly body 38 is assembled to the vehicle body 1 by the two fastening robots 132 provided under the connecting station CS2, the assembly body 38 which has a great influence on the running performance can be assembled accurately. it can.

[0048]

As described above, the floor unit body is provided with the floor frame joined to the front frame from the front end of the floor to the front end, and the rear end of the front frame is provided. Since the lower unit body is formed by connecting the front unit body and the floor unit body together with the front end of the floor frame, it is possible to increase the bonding strength between the front unit body and the floor unit body. By doing so, the rigidity of the lower unit body formed by connecting them can be increased.

According to the second aspect of the present invention, the lower unit body is inserted into the upper unit body from the front side thereof, and the side portion of the floor member of the lower unit body in the vehicle width direction is engaged with the lower edge of the body side panel of the upper unit body. By engaging and engaging the mating portion, it is not necessary to support the lower unit body until the lower unit body is joined as in the conventional case, and an adhesive is easily used as a method of joining both bodies. It is possible to reduce the number of fastening points such as bolts as much as possible,
It is possible to facilitate and speed up the assembly work.

According to the third aspect of the present invention, one of the side portion and the engaging portion is formed as a concave portion extending in the vehicle front-rear direction, and the other is formed as a convex portion slidably fitted in the concave portion. When the lower unit body is inserted into the upper unit body, the lower unit body can be inserted easily and reliably by guiding the insertion of the lower unit body by the fitting of the concave portion and the convex portion. Can be further facilitated and speeded up.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a vehicle body structure of an automobile.

FIG. 2 is a cross-sectional view of a connecting portion between a front unit body and a floor unit body.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a view similar to FIG. 3 of another embodiment.

FIG. 5 is an explanatory diagram of instrument panel members.

FIG. 6 is a cross-sectional view of a connecting portion of a front unit body and a floor unit body in another example.

FIG. 7 is an exploded perspective view of a vehicle body structure of an automobile for explaining a method of connecting a lower unit body and an upper unit body.

FIG. 8 is an exploded perspective view showing a state in which parts are also removed.

FIG. 9 is a perspective view showing an assembled state of the vehicle body.

FIG. 10 is a sectional view showing an engagement structure between a front floor member and a side sill.

FIG. 11 is a cross-sectional view showing an engaging structure of a front floor member and a rear floor member.

FIG. 12 is an explanatory diagram of the entire process of a vehicle assembly line.

FIG. 13 is a perspective view of a carrier device.

FIG. 14 is a view similar to FIG. 14 of a carrier vehicle apparatus according to a modified example.

FIG. 15 is a process explanatory view of an outfitting line for a floor unit body.

FIG. 16 is a perspective view of a main part of an outfitting line for a front unit body.

FIG. 17 is a perspective view of the front unit body and the floor unit body in the coupling step.

FIG. 18 is a perspective view of the upper unit body and the lower unit body in the coupling step.

FIG. 19 is a side view of a connecting station for connecting the upper unit and the lower unit body.

FIG. 20 is a front view of the connection station.

FIG. 21 is a side view of a connecting station for assembling the assembly body.

[Explanation of symbols]

 1 Body 2 Engine room 3 Front unit body 4 Floor member 5 Floor unit body 7,8 Body side panel 9 Upper unit body 11 Front frame 12 Floor frame 13 Lower unit body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenki Kurino 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Motor Corporation

Claims (3)

[Claims] 1. A vehicle body is divided into a front unit body having an engine room, a floor unit body having at least a floor member, and an upper unit body having a roof member and left and right body side panels. A floor frame joined to the front frame is extended from the front end of the floor member to the front of the unit body, and the front unit body and the floor are joined together with the rear end of the front frame and the front end of the floor frame. A lower unit body is formed by connecting with the unit body, and each unit body is outfitted at least in the preceding step of the connection, and then these unit bodies are connected with the upper unit body that has been outfitted in advance. A method of assembling an automobile body, which is characterized by the following. 2. The lower unit body and the upper unit body are connected to each other by inserting the lower unit body relative to the upper unit body from the front side thereof, and connecting the side portion of the floor member of the lower unit body in the vehicle width direction. The vehicle body assembling method according to claim 1, wherein the upper unit body is engaged with an engaging portion at a lower edge of a body side panel to be coupled. 3. The lower unit, wherein one of the side portion and the engaging portion is formed in a recess extending in the front-rear direction of the vehicle body, and the other is formed in a protrusion slidably fitted in the recess. 3. The vehicle body assembly method for an automobile according to claim 2, wherein when the body is relatively inserted into the upper unit body, the relative insertion of the lower unit body is guided by fitting the concave portion and the convex portion.