JP3412587B2 - Automobile manufacturing method, manufacturing apparatus, and automobile - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile manufacturing method, a manufacturing apparatus, and an automobile.

[0002]

2. Description of the Related Art As is well known, the body of an automobile has various panel materials joined together by using a strength member having a closed cross section such as various pillars, side sills, side members, cross members, cowl boxes and roof rails as a skeleton. Box type, with engine compartment and cabin, 3
In the box type, the engine compartment is separated from the cabin and the luggage compartment.

Regardless of which type of vehicle body is used, the complete volume of Automotive Engineering Vol. 19, Automotive Manufacturing Method, 1980
Items on pages 178 to 179 published by Sankaido on March 20th 7.
As is clear from the contents described in 4 "body assembly process",
The panel material is press-molded in the pressing process, and then sequentially welded and joined in the car body assembly process to form a white body, which is sequentially transferred to the painting process, the vehicle assembly process for assembling fittings, etc., and finally various functions. I try to assemble parts and interior parts.

[0004]

However, in the conventional automobile manufacturing method, automation is progressing from the pressing process to the final vehicle assembly process, and the coating process is interposed in the automation line, and the number of processes is extremely large. Process was required. That is, a process for drying the coating and a facility for changing colors are required after the coating process is completed and before the process proceeds to the vehicle assembly process, and the ratio of the drying process and the like is extremely large. By the way, the space for one car is 1
In terms of steps, in the conventional manufacturing method, the total is 800 to 10
About 00 steps were required. For this reason, a lot of time is required to manufacture the automobile, and the factory space is also enormous.

Further, in the conventional manufacturing method, the engine, the interior parts, etc. are mounted in the closed space such as the engine compartment, the cabin, etc.
For example, there is a problem that an operator must enter the cabin or perform the operation from the opening of the vehicle body to which the door is attached, which requires a lot of labor and time.

An object of the present invention is to provide a vehicle manufacturing method, a vehicle manufacturing apparatus, and a vehicle, which can greatly reduce the number of manufacturing steps and make it easy for workers to manufacture the vehicle.

[0007]

According to a first aspect of the present invention, a plurality of floor constituent base materials for an automobile, each of which is formed of a light metal material, are combined, and the combined floor constituent base materials are joined to form a floor base material. A floor step, an indoor part mounting step of assembling a floor interior material to the floor base material to form a floor unit, and a body side unit that constitutes a side part of the automobile by assembling a body side interior material to a body side base material, A body main step of joining a roof interior material to a roof base material to form an upper part of the automobile by assembling the roof interior material to the floor unit, and an underbody consisting of an engine, a powertrain, a suspension, and the like. Assemble the running unit to the upper body unit to form the vehicle body And running parts mounting step, on the vehicle body, it is characterized in that it comprises an outer surface decoration step of attaching an external surface covering member for decoration.

According to a second aspect of the present invention, an operator combines a plurality of floor constituent base materials of an automobile, each of which is molded of a light metal material, on a manual conveyor, and joins the combined floor constituent base materials to form a floor base material. Floor process equipment to be, the indoor component mounting process device to take the floor base material on the manual conveyor and the operator assembles the floor interior material to the floor base material to form a floor unit, and the floor unit on the manual conveyor. A body side unit that receives the floor unit and assembles a body side interior material to a body side base material to form a side surface portion of the automobile, and a roof unit that assembles a roof interior material to a roof base material to form an upper portion of the automobile On the automatic conveyor driven by the drive means while the operator combines the floor unit with A body main process device that takes over and joins with a robot to form an upper body unit, and an underrunning unit consisting of an engine, a powertrain, a suspension, and the like are supplied by a supply device, and the upper body unit is assembled by ascending them. The present invention is characterized by comprising a running parts mounting process device for forming a vehicle main body by means of the above, and an external surface decoration process device for accepting the vehicle main body on a manual conveyor and attaching an external surface covering member for decoration by an operator.

According to a third aspect of the present invention, a floor unit in which a floor interior material is assembled to a floor base material obtained by combining and joining a plurality of floor constituent base materials for an automobile, each of which is molded of a light metal material, and a body side base material is a body side. An upper body unit in which an interior material is assembled to form a side surface portion of the automobile and a roof base material that is assembled to a roof base material to form an upper portion of the automobile is joined, an engine, and a power train An under-running unit that is composed of a suspension or the like and is assembled to the upper body unit to form a vehicle body, an exterior component such as a bumper, a window shield, and a door unit in which a door mirror is attached to a door panel on the vehicle body. Assembled with an outer surface covering member for And wherein the door.

A fourth aspect of the present invention is the method of manufacturing an automobile according to the first aspect, wherein the joining is performed by welding.

A fifth aspect of the present invention is the method for manufacturing an automobile according to the first aspect, wherein the joining is performed by adhesion.

A sixth aspect of the present invention is the vehicle according to the first aspect, wherein the joining is performed by rivets.

A seventh aspect of the present invention is the vehicle according to the first aspect, wherein the joining is performed by bolts.

According to an eighth aspect of the invention, there is provided the automobile manufacturing apparatus according to the second aspect, wherein the joining is performed by welding.

According to a ninth aspect of the invention, there is provided the automobile manufacturing apparatus according to the second aspect, wherein the joining is performed by adhesion.

A tenth aspect of the present invention is the vehicle manufacturing apparatus according to the second aspect, wherein the joining is performed by rivets.

An eleventh aspect of the invention is an automobile manufacturing apparatus according to the second aspect, wherein the joining is performed by bolts.

According to a twelfth aspect of the invention, there is provided an automobile according to the third aspect, wherein the joining is performed by welding.

According to a thirteenth aspect of the present invention, the automobile according to the third aspect is characterized in that the joining is performed by adhesion.

A fourteenth aspect of the present invention is the vehicle according to the third aspect, wherein the joining is performed by rivets.

A fifteenth aspect of the present invention is the vehicle according to the third aspect, wherein the joining is performed by bolts.

The invention of claim 16 relates to claim 1 or 4 to 4.
8. The method of manufacturing an automobile according to any one of 7), wherein the floor constituent base material is molded by extrusion.

The invention of claim 17 relates to claim 2 or 8 to 8.
12. The automobile manufacturing apparatus according to any one of 11, wherein the floor constituent base material is molded by extrusion.

The invention of claim 18 relates to claim 3 or 12
15. The automobile according to any one of 1 to 15, wherein the floor constituent base material is molded by extrusion.

The invention of claim 19 is the invention of claim 3 or 12.
15. The automobile according to any one of to 15 or 18, wherein one of the floor-constituting base materials is provided with a fitting female portion, and the other is provided with a fitting male portion for fitting with the fitting female portion. One of the male and female parts is provided with a positioning projection, and the other is provided with a positioning recess that engages with the positioning projection.

According to a twentieth aspect of the present invention, in the automobile according to the nineteenth aspect, the positioning concave and convex portion is provided on a back wall of the fitting female portion and a tip wall of the fitting male portion, and the fitting female and male portions are provided. It is characterized by performing rotation stop between.

According to a twenty-first aspect of the invention, there is provided the automobile according to the twentieth aspect, in which engaging clip projections are provided on both inner surfaces of the opening edge of the fitting female portion facing each other, and the fitting is performed. Clip concave portions that engage with the clip convex portions are provided on both outer surfaces of the male portion, and both outer surfaces of the fitting male portion are in contact with both inner surfaces of the female fitting portion closer to the tip end side than the clip concave portions. It is characterized by having a surface.

According to a twenty-second aspect of the present invention, in the automobile according to the twenty-first aspect, the clip concave portion and the inner surface of the opening edge portion of the fitting female portion on the vehicle interior side are bonded together, and the fitting female portion is formed. It is characterized in that a weld is made between a vehicle compartment outer side opening edge portion of the portion and an outer surface of the base portion of the fitting male portion.

A twenty-third aspect of the invention is the vehicle according to the nineteenth aspect, wherein the floor-constituting base material includes a front floor and a dash lower of an engine compartment skeleton, and the fitting female portion is the dash. It is characterized in that the lower portion is formed of two upper and lower flanges extending toward the rear side of the vehicle body, and the male fitting portion is formed at a front end of the front floor and fits between the flanges.

According to a twenty-fourth aspect of the present invention, in the automobile according to the twenty-third aspect, the concave portion is a groove-shaped portion formed in the vehicle width direction, and the convex portion engages with the groove-shaped portion. It is characterized by a claw-shaped portion.

The invention of claim 25 is the same as claim 23 or 24.
The above-mentioned automobile is characterized in that the flange on the upper side of the fitting female portion is thinner than the flange on the lower side.

The invention according to claim 26 is the automobile according to any one of claims 23 to 25, wherein the rear end of the lower flange of the fitting female portion is more than the rear end of the upper flange. It is characterized in that it is projected rearward of the vehicle body, and an upper front end of the fitting male portion is projected forward of the vehicle body so as to correspond to the flange rather than a lower front end thereof.

A thirty-seventh aspect of the present invention is the vehicle according to the third aspect, wherein lower positioning means for positioning the floor unit and the body side unit is provided between the floor unit and the body side unit. An upper positioning means for positioning the both is provided between and.

The invention of claim 28 is the vehicle of claim 27, wherein the upper and lower positioning means are constituted by pins and locate holes.

According to a twenty-ninth aspect of the present invention, in the automobile according to the twenty-eighth aspect, the pin and the locate hole of the lower positioning means are arranged with their axes centered in the vehicle width direction, and the pin of the upper positioning means and The locate hole is arranged with its axis vertically oriented so as to be orthogonal to the axis of the pin and the locate hole of the lower positioning means.

The invention of claim 30 is an automobile according to any one of claims 27 to 29, wherein the lower positioning means is arranged at least on the lower end side of the center pillar, and the upper positioning means is at least the center. It is arranged on the upper end side of the pillar and on the intermediate side of the front pillar.

According to a thirty-first aspect of the present invention, in the automobile according to the third aspect, the joining is one-way welding of a seam located outside the passenger compartment.

According to a thirty-second aspect of the present invention, in the automobile according to the third aspect, the floor unit and the body side unit are joined by bonding the seam on the inside of the vehicle and welding the seam on the outside. It is characterized by being.

According to a thirty-third aspect of the present invention, in the automobile according to the third aspect, the outer surface covering member is molded of resin, and is joined to the vehicle body side by a clip portion, and in the vicinity of the clip portion, A seal portion is provided between the outer surface covering member and the outer surface of the vehicle body.

[0040]

According to the first aspect of the invention, since the painting process is not required until the automobile is completed, the production process can be greatly reduced, the automobile production time can be shortened and the factory installation area can be reduced. Can be reduced. Further, since the floor unit, the body side unit, and the roof unit are assembled by previously assembling the interior materials, the assembly can be performed in the open space, and the work of the operator can be remarkably facilitated. Can be provided.

According to the invention of claim 2, it is possible to provide an automobile manufacturing apparatus which can obtain the effect of claim 1.

According to the invention of claim 3, it is possible to provide an automobile capable of obtaining the effect of the invention of claim 1.

According to the invention of claim 4, in addition to the effect of the invention of claim 1, it is possible to easily join by welding.

According to the invention of claim 5, in addition to the effect of the invention of claim 1, they can be easily joined by adhesion.

According to the invention of claim 6, in addition to the effect of the invention of claim 1, it is possible to easily join by rivets.

According to the invention of claim 7, in addition to the effect of the invention of claim 1, it is possible to easily join by bolts.

According to the invention of claim 8, in addition to the effect of the invention of claim 2, it is possible to easily join by welding.

According to the invention of claim 9, in addition to the effect of the invention of claim 2, it is possible to easily join by adhesion.

According to the tenth aspect of the invention, in addition to the effect of the second aspect of the invention, rivets can be used for easy joining.

According to the eleventh aspect of the present invention, in addition to the effect of the second aspect of the present invention, it is possible to simply connect the bolts.

According to the twelfth aspect of the invention, in addition to the effect of the third aspect of the invention, it is possible to easily join by welding.

According to the thirteenth aspect of the invention, in addition to the effect of the third aspect of the invention, it is possible to easily join by adhesion.

According to the fourteenth aspect of the invention, in addition to the effect of the third aspect of the invention, rivets can be used for easy joining.

According to the fifteenth aspect of the present invention, in addition to the effect of the third aspect of the invention, it is possible to simply connect the bolts.

In the sixteenth aspect of the invention, the first or fourth aspect of the invention is provided.
In addition to the effect of the invention of any one of
It can be easily formed by extruding a light metal material.

According to the invention of claim 17, claim 2 or 8
In addition to the effect of any one of the inventions 1 to 11, the floor constituent base material can be easily molded by extruding a light metal material.

In the eighteenth aspect of the present invention, the third aspect or the first aspect is provided.
In addition to the effect of any of the inventions 2 to 15, the floor-constituting base material can be easily formed by extruding a light metal material.

In the invention of claim 19, claim 3 or 1
In addition to the effect of the invention of any of 2 to 15 or 18,
The fitting male portion is fitted to the fitting female portion, and the fitting is positioned by the engagement of the positioning concave and convex portions, so that the operator can easily form the floor base material.

According to the twentieth aspect of the invention, in addition to the effect of the nineteenth aspect of the invention, the positioning concave and convex portions prevent rotation between the mating male and female portions to ensure mutual positioning of the floor constituting base materials. Can be formed more easily.

According to the twenty-first aspect of the present invention, in addition to the effect of the twenty-first aspect, the fitting male and female portions can be reliably and easily coupled by engaging the clip convex portion with the clip concave portion. In addition, the close contact between the abutting surfaces can improve the airtightness between the floor constituting base materials. Moreover, the contact between the abutting surfaces can be surely performed by the engagement of the clip concave-convex portions, so that the airtightness can be easily and surely achieved.

According to the twenty-second aspect of the present invention, in addition to the effect of the twenty-first aspect, it is possible to surely bond the floor constituting base materials to each other by adhesion and welding. Since the bonding is performed using the clip concave portion, the bonding is not exposed to the inside of the vehicle interior, and the finishing accuracy can be improved. The floor constituent base material is an extruded product, and the heat of welding on the vehicle body outer side of the floor constituent base material is suppressed from being transferred to the surface that becomes the vehicle interior side, and immediately after forming the floor base material, the seat, carpet, and other interior The material can be assembled.

According to the invention of claim 23, in addition to the effect of the invention of claim 21, the male fitting portion of the front floor can be fitted by moving it between the upper and lower flanges of the dash lower in the front-rear direction. The front floor and dash lower can be easily assembled. Further, the vertical positioning of the dash lower and the front floor can be easily performed. Further, by engaging the positioning convex portion and the positioning concave portion, the dash lower and the front floor can be positioned relative to each other, and the assembling accuracy in the vehicle front-rear direction can be easily ensured, and the mutual positioning jigs are unnecessary. It is possible to Further, due to the engagement of the positioning concavo-convex portion, the fitting between the dash lower and the front floor is difficult to be disengaged even when the assembly line is moved or vibration during transportation is performed, and the handling is easy.

According to the twenty-fourth aspect of the invention, in addition to the effect of the twenty-third aspect of the invention, the engagement between the groove-shaped portion and the claw-shaped portion allows the dash lower and the front floor to be more reliably positioned and engaged. You can

In the invention of claim 25, claim 23 or 2
In addition to the effect of the invention of 4, the flexibility of the upper flange reduces the insertion force of the male fitting portion of the front floor between the flanges while improving the supporting rigidity by the lower flange, and improves the assembling property. be able to.

In the invention of claim 26, claims 23 to 25
In addition to the effect of any one of the inventions, the position of the positioning uneven portion between the dash lower and the front floor can be made different by the upper and lower flanges, and at the time of a frontal collision, the input from the front side member is simultaneously applied to the upper and lower positioning uneven portions. Concentration can be suppressed, and the amount of deformation of the dash lower can be suppressed.

According to the twenty-seventh aspect of the invention, in addition to the effect of the third aspect of the invention, the lower positioning means for both the floor unit mainly made of the extruded material and the body side unit mainly made of the casting etc. have high rigidity. By positioning with, it is possible to surely perform temporary assembly and accuracy. Further, by positioning the body side unit mainly made of casting and the roof unit, both of which have high rigidity, by the upper positioning means, provisional assembly and accuracy can be easily performed. Therefore, the workability of assembling the vehicle body can be improved.

According to the twenty-eighth aspect of the invention, in addition to the effect of the twenty-seventh aspect of the invention, provisional assembling and precision adjustment can be performed more reliably by the pin and the locate hole.

According to the twenty-ninth aspect of the invention, in addition to the effect of the twenty-eighth aspect of the invention, since the pins and locate holes of the lower positioning means and the pins and locate holes of the upper positioning means are orthogonal to each other, the floor unit and the body side unit are perpendicular to each other. By temporarily assembling with the pin and locate hole, the accuracy of the mounting position between the left and right body side units to the roof unit can be ensured, and temporary assembly with the pin and locate hole of the roof unit to the body side unit is also extremely accurate. It can be done easily.

According to the invention of claim 30, claims 27 to 29 are provided.
In addition to the effect of any one of the above aspects, both the lower positioning means and the upper positioning means can perform positioning at a portion having high rigidity, so that temporary assembly and accuracy can be more reliably performed.

According to the thirty-first aspect of the invention, in addition to the effect of the third aspect of the invention, the welding work can be facilitated by performing the welding from the outside of the passenger compartment.

According to the thirty-second aspect of the invention, in addition to the effect of the third aspect of the invention, since the floor unit is based on the extruded material, unlike the one-piece plate, the welding on the outside of the passenger compartment extends to the inside. Can be suppressed, and the influence of the heat of welding on the interior material and the like inside the vehicle interior can be regulated. Further, even if the vehicle body sealing material is not applied by adhesion, the airtightness inside and outside the vehicle can be secured.

According to the thirty-third aspect of the invention, in addition to the effect of the third aspect of the invention, the outer surface covering member can be easily assembled to the vehicle body side by the clip portion, and the vehicle body body can be attached by the seal portion near the clip portion. The seal with the outer surface covering member can be easily performed. Since the outer surface covering member is formed of resin, the degree of freedom in selecting colors and moldings is wide, and it is possible to easily meet customer needs. In addition, at the time of repair or the like, only the outer surface covering member can be easily exchanged, and the repairability can be improved.

[0073]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic plan view of an entire factory in which an automobile manufacturing method and manufacturing apparatus are realized according to an embodiment of the present invention. As shown in FIG. 1, as a manufacturing apparatus, a floor process apparatus A, an indoor component mounting process apparatus B,
A body main process device C, a running part mounting process device D, and an outer surface decoration process device E are provided.

In FIG. 1, reference numeral (a) is an automation process,
(B) is a manual process, (c) is a welding process, (d) is a fixed facility, (e) is a cell production process, (f) is a work process, (to) is a parts storage site, and (h) is an assist device. Shows.

The floor process apparatus A realizes a floor process. A plurality of floor constituent base materials of an automobile extruded from light metal are combined, and the combined floor constituent base materials are welded to form a floor base material. Form. The floor process apparatus A includes a combination process apparatus 1 that realizes a combination process of floor constituent base materials and a welding process apparatus 3 that realizes a welding process C. The combination process device 1 includes a floor main process device 5 and two sub process devices 7 and 9. The floor main process device 5 and the sub process devices 7 and 9 are work processes (f) manually performed by workers.

The indoor component mounting process device B realizes an indoor component mounting process, and is a floor unit in which a floor interior material is assembled to a floor base material. The indoor component mounting process device B is a manual process (b) and includes a rear floor module process device 11 that realizes a rear floor module process and a rear end module process device 13 that realizes a rear end module process.

Reference numeral 13 denotes a work process (f) manually performed by the worker. In addition to the indoor part mounting process device B, auxiliary devices (h) and parts (g) around the manual process (b) are dash module pallet 15, engine room parts pallet 17, carpet pallet 19, rear seat pallet 21, console pallet. 23 and the front seat pallet 25.

The body main process unit C realizes the body main process. The body main process is performed by assembling the body interior material to the body side base material to form the side surface portion of the automobile and the roof interior material to the roof base material. The roof unit, which is assembled and constitutes the upper part of the automobile, is welded to the floor unit to form an upper body unit.

The body main process device C is provided with a body side LH process device 27 and a roof process device 29 on one side of the manual process (b) and welding process (c), and a body side RH process device 31 on the other side. There is.

The body side LH process device 27 is a device for assembling a body side interior material to a body side base material to form a body side unit constituting a left side surface portion of an automobile. The interior device 33 and the body side set carriage 35 are provided, and the parts (g) are provided on the body side pallet 37 and the like.

The body side RH process device 31 is a device for assembling a body side interior material to a body side base material to form a body side unit which constitutes a right side surface portion of an automobile. The sub line interior device 39 and the body side set carriage 41 are provided, and the parts (g) are provided on the body side pallet 43 and the like.

The roof process device 29 is provided with a set process device 45 as a work process (f) and a roof reversing machine 47 as a fixed facility (d). Around the set process device 45, parts (g) are provided for each vehicle type. Equipped with roof parts. In this embodiment, the S sedan pallet 49, the S setaka pallet 51, the wagon pallet 53, the SS commuter pallet 55, and the M sedan pallet 57 are provided.

In the parts storage space 103, roof- and body-side-related parts having different vehicle widths are stored in pallets, and each pallet is supplied to each sub-line according to a production order.

The running part mounting process device D is
The vehicle body is formed by assembling the running parts mounting process by assembling an underrunning unit including an engine, a powertrain, a suspension and the like to the upper body unit. This running parts mounting process device D is equipped with an automatic mounting machine 59 as a fixed equipment (d) and an underrunning unit URU as a component (g) for the automated process (a).

In the downstream of the running parts mounting process device D, there are an exterior part mounting process device F, a liquid addition process device G, a window process device H, a door mounting process device I, and a final outer surface decoration process device E. Reach

The apparatus F for mounting the exterior parts realizes the step of attaching the exterior parts and mounts exterior parts such as bumpers. In this exterior equipment mounting process device F, parts (g) are arranged on the rear bumper pallet 63 and front bumper pallet 65 on one side of the manual process (b), and parts (g) are on the other side of the manual process (b). It is arranged on the end module pallet 67, and an assisting device (h) is arranged.

The liquid material adding process device G realizes a liquid material adding process and incorporates a liquid product such as brake oil. In this liquid matter addition process device G, a long life coolant supply device 67 and a gasoline supply device 69 are arranged as fixed equipment (d) on one side of the manual process (b), and a brake oil supply device 71 and a power supply are provided on the other side. The steering oil supply device 73 is arranged, and other parts (g) are also arranged.

The window process device H realizes a window process, and is equipped with a window shield. The window process device H is
Parts (g) are arranged on the lamp pallet 74 and the window shield panel pallet 75.

The apparatus I for mounting doors realizes a step for mounting doors, and mounts a door unit having a door mirror and the like mounted on a door panel. This door mounting process device I has a door sub RH process device 7 on one side of a manual process (b).
7 and a door sub LH process device 78 on the other side,
Equipped with an assist device (h). The door sub RH process device 77 forms a right side door unit, and the door sub LH process device 78 forms a left side door unit.

In the door sub RH process device 77, the parts (g) around the work process (f) are sash module front pallet 79, sash module pallet 81,
Door mirror pallet 83, interior module pallet 8
5, arranged on the inner module pallet 87. The work steps (f) and parts (g) of the door sub LH process device 78 are the same as those of the door sub RH process device 77, although there are differences between the left and right doors, and are designated by the same reference numerals.

Finally, in the exterior decoration process device E, the resin outer plate pallet 89 for the roof of the component (g) is arranged on one side of the manual process (b) and the resin outer plate pallet 91 for the rear fender is arranged on the other side. , Resin outer panel pallet for front fender 9
3, a trunk lid resin outer panel pallet 95, and a hood resin outer panel pallet 97 are arranged.

Incidentally, in the vicinity of each process equipment, necessary parts storage 99, 101, 103, 105, 107,
109 and 111 are arranged and parts necessary for each process are stocked.

First, in the floor process equipment A,
A plurality of floor constituent base materials of an automobile extruded from light metal are combined, and the combined floor constituent base materials are welded in the welding apparatus 3 to form a floor base material. Next, in the indoor component mounting process device B, the rear floor module, the rear end module, the dash module, the engine room component, the carpet, the rear seat, the console, and the front seat are assembled and transferred to the next body main process device C as a floor unit.

In the body main process unit C, the body side unit provided in the body side sub line interior units 33 and 39 is the body side set carriage 3
5 and 41, the roof unit is mounted on the floor unit, and then the roof unit is mounted on the left and right body side units reversed by the roof reversing machine 47.
In the roof reversing machine 47, a roof base material is selected according to the vehicle type in the set process device 45, and a roof interior material is assembled and supplied to the roof reversing machine 47.

After the body side unit is assembled to the floor unit and the roof unit is assembled in this way, laser welding is performed in the welding process unit 58.

Next, in the running parts loading process device D, the underrunning unit 61 including the engine, power train, suspension, etc.
9 is assembled to the upper body unit to form a vehicle body. A rear bumper, a front bumper, a front end module, etc. are attached to the vehicle body in the exterior equipment mounting process device F, and liquid substances such as long life coolant, gasoline, brake oil, power steering oil, etc. in the liquid substance adding process device G. Is incorporated.

In the window process device H, a window shield panel or the like is attached. Door mounting process device I
In, the left and right door units having the sash module front, the sash module rear, the door mirror, the interior module, and the inner module attached to the door panel are attached.

Finally, in the exterior decoration process device E, the roof resin outer plate, the rear fender resin outer plate, the front fender resin outer plate, the trunk lid resin outer plate, and the hood resin outer plate are attached. Sent to the completion inspection line.

As described above, after the floor constituent base materials are combined to form the floor base material, the seat / instrument panel, the harness and the like are assembled to form a floor unit. Assembling the body side unit assembled with the material, and further assembling the roof unit assembled with the roof interior material Since it is a vehicle manufacturing method, a manufacturing apparatus, and an automobile, various interior materials can be assembled in open spaces, respectively. Assembly workability can be markedly improved.

Further, since the painting process is abolished, it is not necessary to change the color of the painting equipment, and the body assembly and the vehicle assembly are completely synchronized. It is possible to significantly reduce the number of spare parts.

Therefore, the line length from the body assembly of the upper body unit or the like to the final vehicle assembly is set to the conventional 800.
The number of steps can be greatly reduced to 16 steps of this embodiment, and a very compact production line can be realized.

As a result, the time required to produce an automobile becomes extremely short, and as a result, the period required from the customer's order to the delivery can be greatly shortened.
By switching from conventional make-to-stock production to make-to-order manufacturing, the number of stocks waiting to be shipped can be significantly reduced, and transportation costs,
The costs required for inventory management can be reduced. or,
Since the line length of automobile manufacturing can be greatly reduced, the installation area of the factory can be greatly reduced.

FIG. 2 shows a manufacturing state in each manufacturing process of an automobile manufactured by the automobile manufacturing apparatus of FIG. 2A shows a state in which the floor process apparatus A of FIG. 1 is completed, and the floor base material 113 is formed by going through the floor process and the welding process. Figure 2 (b)
1 through the rear floor module process device 11 and the rear end module process device 13 in the indoor component mounting process device B of FIG. 1. By the rear floor module process and the rear end module process, the rear floor module 115 and the rear end module are attached to the floor base material 113. The module 117 is assembled.

FIG. 2C shows that the indoor component mounting process is completed by the indoor component mounting process device B, and the dash module 118, the front seats 119 and 121, the rear seat 123, etc. are assembled. FIG. 2D shows the body main process unit C after the body side LH process and the body side RH process.
SU is assembled. FIG. 2E shows a roof process of the body main process unit (c), and the roof unit RU is assembled. After that, laser welding is performed by the welding process device 58.

FIG. 2 (f) shows a running part mounting process by the running part mounting process device D of FIG. 1, and the underrunning unit URU is assembled. The underrunning unit URU includes an engine 131 and the like.

FIG. 2 (g) shows an exterior component attaching process, a liquid substance adding process, a window process, and a door by an exterior component attaching process device F, a liquid substance adding process device G, a window process device H, and a door attaching process device I, respectively. After the installation process, front end module 133, left and right door unit 13
5,137, window shield panels 139,141
Etc. are assembled, and liquid materials such as brake oil are also incorporated.

FIG. 2 (h) shows an external surface decoration process device E of FIG.
Shows a state in which the automobile has been completed through the outer surface decoration process. The resin panel for roof 143, the resin panel for rear fender 145, the resin panel for front fender 14
7, the trunk lid resin panel 149 and the hood resin panel 151 are assembled.

FIG. 3 is a schematic perspective view of the floor process apparatus A of FIG. 1 excluding the welding process apparatus 3.
The floor main process device 5 and the sub process devices 7 and 9 are roller conveyors 153, 155, and 55 as manual conveyors, respectively.
Mainly 157. In addition, pallets 159, 161, 163, 165, 167, and
169 and 171 are arranged, and the load-changing type stand 173, 175, 177, 179, 181, with wheels, respectively.
183 and 185, respectively.

Pallets 159, 161, 163, 16
5, 167, 169 and 171 are the parts storage 99 of FIG.
It is set in the vicinity of 101, and the operator supplies and arranges the pallets 159 and the like accommodating the respective parts. In this case, when pulling out a pallet of relatively heavy parts, a pallet shooter or the like having a wheel conveyor embedded therein is supplied to the pallet so that the pallet is slippery.

The pallet 159 accommodates a plurality of main floor constituent base materials 195 for each shelf.
61 is another main floor constituent base material 193, pallet 1
Further, another main floor constituent base material 191 is similarly accommodated in 63. In the pallet 166, a plurality of each component constituting the engine compartment skeleton 187 is accommodated in one set on each shelf. Pallet 167,
Each of the components of the rear floor skeleton portion 189 is housed in each of 169 and 171.

Each pallet 159, 161, 163, 16
5, 167, 169 and 171, each of the pallets 1 is lifted by a load fluctuation type stand when the parts are taken out.
It is easy to take out the parts from 59 etc. to each roller conveyor 153 etc. When no parts are left in each pallet 159 or the like, it is possible to easily replenish the next pallet from the parts storage 99 or 101 by moving the load-changing type table with wheels.

The floor process equipment A is a cell production line composed of a floor main process equipment 5 and sub-process equipments 7 and 9 in a U-shaped work line, and they are assembled one at a time at the same time. Therefore, there is no extra preparation.

That is, the engine compartment skeleton portion 187 is assembled in the sub-process device 7. At this time, an operator manually assembles the roller conveyor 155. On the sub-process 9, the rear floor frame 189 is assembled. In this case as well, the operator manually assembles on the roller conveyor 157.

Then, on the roller conveyor 153 of the floor main process unit 5, the main floor constituent base materials 191 and 19 are provided.
3,195 and the skeleton 1 of the engine compartment
An operator assembles 87 and the rear floor frame 189.

Each of the parts used in these assembling is made of a light metal material such as an aluminum alloy by extrusion molding, and each of them can be held by an operator, and the assembling work can be easily performed even by a woman or middle-aged and elderly people. be able to.

FIGS. 4A, 6 and 7 respectively show the main floor constituent base material 19 which constitutes the floor constituent base material 113.
1, 193, 195, an engine compartment skeleton 187, and a rear floor skeleton 189.

First, as shown in FIG. 4 (a), the main floor constituent base materials 191, 193, 195 are each formed by extrusion of an aluminum alloy, and the locate holes 197, 199, 201 for positioning are formed together. is doing. Further, the main floor constituting base materials 191, 193 are provided with grooves 20 for engaging the seat mounting bracket 203.
5,207 are simultaneously molded.

Further, the main floor constituting base material 191 is provided with a fitting male portion 209 at the front portion and a fitting female portion 21 at the rear portion.
1 is provided. The main floor constituting base material 193 is provided with a fitting female portion 213 in the front portion and a fitting male portion 21 in the rear portion.
5 are provided. Further, the main floor constituent base material 19
5, the fitting female part 217 is provided in the front part, and the fitting female part 219 is provided in the rear part.

The mating male and female parts 211 and 213 join the main floor constituting base materials 191 and 193, and the mating female and male parts 217 and 215 join the main floor constituting base materials 193 and 195. The coupling structure is basically the same structure, and will be further described with reference to FIG. 4B which is a sectional view taken along the line bb of FIG. 4A and FIG. 5 which is an enlarged sectional view.

That is, FIG. 4B, FIG. 5A to FIG.
As shown in (c), the positioning projection 223 is provided on the back wall 221 of the fitting female part 211, and the tip wall 22 of the fitting male part 213 is provided.
5 is provided with a positioning recess 225. The positioning concave-convex portions 223 and 225 engage with each other to prevent rotation between the fitting male and female portions 211 and 213.

Clip projections 227 for engagement are projected on both inner surfaces of the opening edge of the fitting female portion 211 facing each other, and clips engaging with the clip projections 227 on both outer surfaces of the male fitting portion 213. The recessed portion 229 is provided, and the clip recessed portion 2 that engages with the clip protruding portion 227 on both outer surfaces of the male fitting portion 213.
29 are provided. Further, contact surfaces 231 that are in close contact with both inner surfaces of the female fitting portion 211 are provided on both outer surfaces of the male fitting portion 213 on the tip side of the clip recess 229.

Then, the main floor constituent base materials 191 and 1
When the operator joins 93, as shown in FIG. 5A, the adhesive 233 is applied to the clip concave portion 229 corresponding to the vehicle interior side.
And apply the mating male part 213 to the mating female part 2 as shown in FIG.
Insert it into 11 diagonally. As a result, FIG.
As shown in (b), the front end side of the fitting male portion 213 is the fitting female portion 2
5 by inserting into 11 and further pushing.
As shown in (c), the fitting male and female parts 211 and 213 are fitted. As a result, the positioning concavo-convex portions 225 and 223 are engaged with each other, rotation of the fitting male and female portions 211 and 213 is stopped, and the assembling of the main floor constituting base materials 191 and 193 is completed.

As a result, the clip concave portion 2 on the vehicle interior side is formed.
29 and the inner surface 23 of the opening edge portion of the fitting female portion 211 on the vehicle interior side
5, the upper and lower contact surfaces 231 are in close contact with the upper and lower inner surfaces 235 of the fitting female portion 211 on the tip side of the clip concave portion 229. This contact surface 23
5 is secured to the interior side of the vehicle interior and the exterior side of the vehicle shown in FIG. 5 below, and the adhesive 233 enhances the sealing performance. It is possible to maintain the watertightness inside and outside the passenger compartment on the floor unit side without using it.

Main floor constituent base materials 193, 195
The worker's connection can be similarly performed by the male and female fitting portions 217 and 215.

The engine compartment skeleton part 187 as the floor constituting base material is composed of four parts as shown in FIG. 6, and is composed of a dash lower cross member 237, a suspension mount member 239, and left and right front side members 241. . However, in FIG. 6, the illustration of the right front side member is omitted.

The dash lower cross member 237 is
A fitting female portion 243 is provided at the bottom. The structure of the fitting female portion 243 is substantially the same as that of the fitting female portion 211 described with reference to FIGS.

A groove 24 into which the lower end of the dash module is inserted is formed on the upper part of the dash lower cross member 237.
5 are provided. A V-cut 247 is provided in the vehicle interior side of the groove 245 in the vehicle width direction, and front cuts 249 are provided on both left and right sides. A member fitting portion 251 is provided on the front side of the dash lower cross member 237, and a through hole 253 is provided on the upper surface side of the member fitting portion 251.

The suspension mount member 239
Is formed of an extruded material in the vertical direction, and is formed in a shape to be fitted into the member fitting portion 251 of the dash lower cross member 237 from the front.

The front side member 241 is formed of an extruded material in the front-rear direction, and the front end thereof has a joint portion 255 formed by aluminum die casting with high ductility joined by welding or the like. The joint portion 255 is for connecting the front end module. A through hole 257 is formed in the upper surface of the rear end of the front side member 241. The left and right front side members 241 are
The rear ends are fitted to the member fitting portion 251 on both sides of the suspension mount member 239, and the through hole 25
Temporary fixing is performed by a temporary fixing bolt 259 penetrating 3,257.

The fitting female part 243 of the thus assembled engine compartment skeleton part 187 is fitted to the fitting male part 209 of the main floor constituting base material 191.
The fitting of the fitting male and female parts 243 and 209 is performed as shown in FIG.
This is almost the same as described with reference to FIG.

The rear floor frame member 189 is shown in FIG.
6 parts, namely, the rear side member front 26
1, a rear side member rear 263, a rear cross member front 265, and a rear cross member rear 267. The rear side members 261 have a bilaterally symmetrical structure, but they can be extruded integrally and cut into two to form left and right rear side member fronts.

Rear side member Since the rear side member 263 has the same structure on the left and right sides, they are integrally extruded, cut and used for the left and right sides. The rear cross member front 265 and the rear cross member 267 are formed by integrally extruding these and cutting them in the thickness direction.

The temporary attachment of the rear cross member front 265, the rear cross member rear 267 and the rear side member front 261 is performed by inserting a locate pin (not shown) from the locate hole 269.
That is, as shown in FIG. 7B, locate holes 271 are provided in the rear cross member front 265 as well, and locate pins (not shown) are inserted into both locate holes 269 and 271 for temporary assembly. Rear cross member Rear 2
The same applies to the temporary assembly of 67 and the rear side member front 261.

The rear cross member front 265,
The rear 267 and the rear side member front 261 are joined by laser welding in a welding process described later, but the rear side member front 261 and the rear side member rear 263 are only joined by bolts and nuts. That is, in the tip of the rear side member rear 263,
Ring-shaped nut 273 having a plurality of nuts in the circumferential direction
The rear side member rear 263 has its tip inserted into the coupling hole 275 of the rear side member front 261 and the plurality of bolts 277 inserted from the outer surface of the rear side member front 261 are fastened to the nut 273 in the rear side member rear 263. By doing so, the rear side member front 261 and the rear side member rear 263 are connected.

Then, FIG. 7 (a) thus combined.
The rear floor skeleton member 189 of FIG.
It is temporarily assembled to the fitting female part 219 at the rear end of the main floor constituting base material 195 of (a), and is transferred to the welding process described later.

As described above, since the work in the floor process is constructed by fitting the extruded members of several parts of light metal such as aluminum alloy, the weight of each part is reduced to about half that of steel. This makes it possible to easily perform the temporary assembling work of the floor-constituting base material 113, and to significantly reduce the load on the operator. At the same time, the extruded materials, which are cheaper in die cost than the press die, are arranged linearly as much as possible.
By not performing bending or the like, it is possible to reduce the secondary processing cost of the extruded material and, at the same time, to replace the conventional pressed parts with the extruded material and the casting, to significantly reduce the mold investment.

Therefore, in the case of dealing with various kinds of floor constituent base materials, the investment in the floor process is remarkably reduced as compared with the conventional one. Further, it is possible to easily cope with the vehicle type by changing the cutting length of the extruded material constituting the floor constituting base material and the extrusion type. For this reason, in the floor process, it is possible to significantly reduce the investment in production equipment and easily support a wide variety of products.

The size and weight of the extruded material parts constituting the floor-constituting base material are within a range that can be sufficiently manually performed (for example, the maximum length is 1400 mm, 10 kg or less), and the fitting parts of the extruded materials are fitted to each other. Since it has a clip structure with a fitting operation force that allows manual fitting, robot equipment, assistance equipment, etc. can be significantly reduced.

FIG. 8 is an exploded perspective view of the main floor constituent base material showing the changes corresponding to the respective vehicle types. (A) shows a reference main floor constituent base material, (b) shows correspondence to vehicle width expansion, and (c) shows correspondence to wheel base expansion.

That is, each constituent base material 191, 1 of FIG.
When the vehicle width direction width of 93, 195 is L1 and the vehicle body front-back direction width of the constituent base material 193 is H1, the vehicle body direction width L2 of each constituent base material 191, 193, 195 is common in FIG. 8B. That is, the cutting length of the extruded material is increased so as to correspond to a wide vehicle model.

In the case of FIG. 8C, each constituent base material 191,
The widths 193 and 195 in the vehicle width direction are the same as L1 in (a), but the width in the vehicle front-rear direction of the constituent base material 193 is H1 in (a).
On the other hand, H2 is set to correspond to a vehicle model having a large wheel base. Therefore, as described above, it is extremely easy to adapt to the vehicle type.

The floor-constituting base material 11 temporarily joined in this way
3 is transferred from the floor main process unit 5 to the welding process unit 3 via the manual roller conveyor 279 shown in FIG.

The welding process apparatus 3 is provided with a partition wall 281 for which entry of workers is prohibited for safety during laser work.
Electric shutters 283 and 284 are provided before and after the partition wall 281. An electric automatic conveyor 2 is provided in the partition wall 281.
85, laser welding robot 287 and locate unit 2
89 and a work detection device 291 are provided.

The automatic conveyor 285 is provided with two belts 295 and 297 on the left and right with respect to a base 293 containing a driving device such as a motor, and the belts 295 and 297 are idle with a driving roller 299 driven by the motor. It is wound around the roller 301. The welding robot 287 is installed on one side of the electric conveyor 285.

The locate unit 289 is provided with three locate pins 303, 305, 307 on the left and right respectively. The position of each locate pin 303, 305, 307 can be adjusted along the support plate 309, and the floor forming base 113 corresponding to the wheel base or the like.
The position of the locate holes 197, 199, 201 can be changed.

The support plate 309 is supported by the elevating part 311 and is vertically adjustable. The elevating part 311 is movably supported by the left and right guide rails 312, and the driving screw 3
13 is screwed together. Therefore, the elevation portion 311 is moved and adjusted in the left-right direction by the forward and reverse rotations of the drive screw 313, and the support plate 309 is adjusted up and down by the elevation portion 311 so that each of the locate pins 303, 305, 30.
7 is fitted in the corresponding locate holes 197, 199, 201, and the floor constituent base material 113 is positioned on the automatic conveyor 285.

The work detecting device 291 can stand up between the left and right belts 295 and 297 and can fall forward. This work detection device 291 is raised from the front,
At the same time as detecting the floor constituent base material 113, the floor constituent base material 113 is positioned in the front-rear direction, and after the welding is completed, it falls forward.

Then, the floor constituent base material 1 is manually inserted from the floor main process unit 5 through the roller conveyor 279.
13 are transferred. When the floor constituent base material 113 is detected by a detection device or the like immediately before the opened electric shutter 283, the left and right belts 295, 2 of the automatic conveyor 285 are detected.
97 is driven, and the floor-constituting substrate 113 handed over the belts 295 and 297 is a partition wall 281.
Will be automatically transferred in.

When the floor-constituting base material 113 is detected by the work detecting device 291 at a predetermined position and is positioned in the front-rear direction at the same time, the driving of the driving roller 299 is stopped and the left and right belts 295, 297 are stopped.

At the same time, locate pins 303, 305, 30
7 is a locate hole 197,199,20 of the floor structure base material 113 by drive of the drive screw 313 and the raising / lowering part 311.
1, the floor-constituting base material 113 is positioned to the front, rear, left and right, and the electric shutter 283 is closed.

Next, the laser welding robot 287 unidirectionally welds each part of the floor constituting base material 113, that is, laser welds. The laser welding between the main floor constituent base materials 191, 193, 195 of the floor constituent base material 113 is performed from the lower surface side which is the outside of the passenger compartment. In such a case, the locate pins 303, 305, 307 and the work detection device 291 are installed. Together, the floor base material 113 rises.
It can be easily performed by floating the lower surface side of the. As the one-way welding, in addition to the laser welding, there are MIG welding, friction welding performed by turning a pin, and the like.

When the welding is completed, the locate pin 303,
305 and 307 and the work detection device 291 are lowered to the original state, and the floor-constituting base material 113 has the left and right belts 295 and 295.
The work detection device 291 falls on the front side, and the locate pins 303, 305, 307 are separated left and right. As a result, the front electric shutter 285
Rise, the partition 281 is opened, and the belts 295, 29
By the driving of No. 7, it is transferred to the indoor component mounting process which is the next process.

By the laser welding, for example, a welded portion 315 is formed between the main floor constituting base materials 191, 193 as shown in FIG. 10, and the welding is completed. Laser welding is performed by a robot whose welding position is automatically controlled as described above, and the welding process is performed in the partition wall 281 in which entry of workers is prohibited for safety during laser work.
Accidents can be prevented. Also, the welding robot 28
In the state in which the dimensional control between the connecting portions is performed by the locate unit 289 which is interlocked with the floor 7,
Welding is performed. Therefore, highly accurate welding can be performed.

Next, regarding the indoor part mounting process device B, first, the rear floor module process device 11 is shown in FIG.
FIG. 12 shows the rear end module process device 13.

As shown in FIG. 11, in this apparatus 11, a pallet 321 accommodating a rear floor panel 319 is arranged at the end of a roller conveyor 317 which is a manual conveyor. The pallet 321 is a load fluctuation type stand 32 with wheels.
3 is placed on top.

Further, along the roller conveyor 317, a pallet 325 accommodating a plurality of spare tires is placed and arranged on a load variation type stand 327 with wheels, and further a plurality of tire pans and floor carpets are accommodated. A pallet 329 and a pallet 331 accommodating a plurality of jacks are arranged. An assisting device (h) is provided on the other end side of the roller conveyor 317.

Therefore, in this rear floor module process device 11, the pallet 321 is changed to the rear floor panel 31.
9 is taken out onto the roller conveyor 317, and the operator manually moves the tires, tire pans, floor carpets, jacks, etc. from the pallets 325, 329, 331 to assemble the rear floor module 115.
And the rear floor module 115 assembled by the assisting device (h) is transferred to the main line of the indoor component mounting process device B. The functions of the load-changing type mounts 323 and 327 are the same as those described with reference to FIG.

As shown in FIG. 12, the rear end module process unit 13 mainly comprises a roller conveyor 333 as a manual conveyor. The roller conveyor 333 has two upper and lower stages 333 according to the shape of the rear end panel 335.
a, 333b. Roller conveyor 33
A pallet 337 accommodating a plurality of rear end panels 335 is arranged at one end of 3.

The pallet 337 is placed on the load-changing type mounting table 339 with wheels, and the vertical position thereof is changed in accordance with the state of housing the components, as described above. Further, the pallet 337 can be moved in the left-right direction with respect to the load-changing type stand 339, so that the rear end panel 335 can be easily taken out onto the roller conveyor 333. If the pallet 337 is empty of parts, it is easy to move the pallet 337 by the load-changing type mounting table 339 with wheels and replenish it from the parts storage 99 or the like.

A pallet 341 which further accommodates a plurality of trunk room finishers along the roller conveyor 333,
A pallet 343 containing a plurality of seal rubbers and another pallet 345 are arranged, and further a roller conveyor 333.
An aid device (h) is installed at the end of. The pallets 341, 343, 345 are also replenished from the parts storage 99 or the like.

Then, the rear end panel 335 is taken out from the pallet 337 onto the roller conveyor 333, and while the operator manually moves the rear end panel 335 onto the roller conveyor 333, the pallets 341, 3
Take out the trunk room finisher, seal rubber, etc. from 43 etc. and assemble them respectively. When the assembly is completed, an assisting device (h) is used as the rear end module 117, and the rear end module 117 is transferred to the main line.

In the indoor component mounting process device B, the rear floor module 115, the rear end module 117, while moving the floor-constituting base material 113 manually on the roller conveyor in the manual process (b) as shown in FIG. An operator attaches the dash module 118, the front seats 119 and 121, a rear seat (not shown), and the carpet to the floor-constituting base material 113.

The rear floor module 115 is assembled to the rear floor skeleton portion 189 from above and fastened and fixed at a predetermined position with bolts and nuts. Rear end module 1
17 is a flange portion 18 at the rear end of the rear floor frame 189.
9a, the rear end 117a is fastened and fixed with bolts and nuts, and the rear floor module 11 is fixed at a predetermined position.
5 is fastened and fixed with bolts and nuts.

The dash module 118 is the groove 2 in the skeleton of the engine compartment of the floor constituting base material 113.
It is attached by fitting the lower edge portion 118a to 45. The center console portion 118b of the dash module 118 is projected from the V cut 247 of the groove 245 to the vehicle compartment side, and the dash side portions 118c are projected from the front cuts 249 on both sides of the groove 245 to the vehicle compartment side.

The front seats 119 and 121 are fitted and fixed to the seat mounting bracket 203 by fitting the seat mounting bracket 203 into the grooves 205 and 207 of the main floor constituting base materials 191 and 193. The seat mounting bracket 203 is slid from the opening of the end of the groove 205 so as to be inserted and positioned at a predetermined position. A jig (not shown) is used for this positioning. Although the mounting of the rear seat is not shown, it can be mounted by a similar method.

In this way, the operator can assemble the seats 119, 121 and the like to the floor-constituting base material 113 in an open space, and the heavy object assembling work under the bad work posture conventionally performed in the narrow vehicle compartment. Can be eliminated and the workability of assembling the vehicle is significantly improved. In addition, since there is no restriction due to the door opening or the interior space for the mounting trajectory of the seats, instrument parts, etc., which is installed from outside the vehicle by the robot, it is greatly simplified and the degree of freedom in the mounting direction is greatly improved. Therefore, it is possible to reduce the investment in the robot and shorten the work time in the process.

The floor unit FU is transferred to the next body main process C by an operator by a manual roller conveyor.

FIG. 14 shows an outline of the body main process unit C, showing the main line and the body side LH process unit 27. In addition, body side RH process device 3
1 is a body side LH process device 2 across the main line
It is arranged on the opposite side of 7 and has a similar structure, and is not shown.

The body side LH process device 27 includes a body side pallet 37, a roller conveyor 349 of the body subline interior device 33, and a pallet 3 containing interior products.
51 and a body side set carriage 35. Body side pallet 37 has M in each compartment
A body side base material 348 such as a class sedan, a height wagon, a wagon, and an S sedan is housed. A roller conveyor, which is a manual conveyor, is provided on the lower surface of the body side pallet 37. This body side pallet 37
Is placed on the lateral movement device 355, the section required for each vehicle type is made to face the next roller conveyor 349 for mounting the interior parts, and the body side base material 348 is manually transferred.

The body side set carriage 353 is a roller conveyor 359 having wheels 357.

Then, the operator slides the pallet 37 to select the body side base material 348 to be sub-assembled, and pulls it out onto the roller conveyor 349 for mounting the interior parts. Here, the body side base material 34
The interior parts attached to the vehicle 8, such as an assist grip, a seat belt unit, a pillar trim, are taken out from the interior pallet 351 and assembled.
In this way, since the interior parts are assembled to the body side BS in the open space, the workability of assembling the vehicle is significantly improved.

After that, it is transferred as a body side unit BSU onto the body side set carriage 35, and temporarily joined to the floor unit FU on the roller conveyor 361 in the main line. The temporary assembly of the floor unit FU and the body side unit BSU can be accurately positioned by fitting a locate pin and a locate hole described later.

In the body main process unit C, the left and right body side units BSU are connected like the temporary connection of the body side units BSU described above, and then the roof unit RU is connected. As described above, the roof unit RU is assembled into the roof unit RU by assembling the roof interior material to the roof base material for each vehicle model in the setting process device 45, and is inverted by the roof reversing machine 47, and is descended from above as shown in FIG. It is what makes me. That is, the roof reversing machine 47
The roof unit RU, which has been turned over at the
It is transferred to the upper side, and the left and right body side units BSU are temporarily assembled. This assembly is also performed by the pin and the locate hole described later.

After that, it is transferred to the welding process device 58, and laser welding is automatically performed in the partition wall as in FIG.

FIG. 15 is a perspective view showing a part of the roof process unit 29 showing the supply status of the roof unit RU to the roller conveyor 361 of the main line. As shown in FIG. 15, the set process device 4 of the roof process device 29.
5 is a workbench equipped with a curved manual roller conveyor 365. A front end of the roller conveyor 365 is connected to a rotating shaft 367, and a rear end of the roller conveyor 365 can be raised and lowered by a cylinder device 369. The set process device 45 includes a shooter 3 provided with a roller conveyor 371 from the parts storage space 103.
73 extends so that the roof base material 375 suitable for the vehicle type can be supplied.

In addition, around the set process device 45, as described above, the pallet of the roof interior material corresponding to the vehicle type is arranged. In FIG. 15, the pallet 53 accommodating the interior material 376 for the wagon and the M The pallet 57 containing the interior material 378 for the sedan is shown. These pallets 53,
57 and the set process device 45, roller conveyors 377 and 379 are arranged, and the interior materials 376 and 3 are provided.
An operator can manually transfer 78 to the set process device 45.

The roof reversing machine 47 includes the support base 3 before reversing.
81 and a reversing unit 383, the roof reversing machine 47
An overhead crane 385 for transferring the roof unit RU is provided between the above and the main line roller conveyor 361. The overhead crane 385 includes a rail 387 fixed to the ceiling side and a moving device 389 that automatically moves along the rail 387. The moving device 389 grips the inverted roof unit RU and supplies the roof unit RU along the rail 387 onto the roller conveyor 361 of the main line.

Therefore, the roof base material 375 is loaded from the shooter 373 onto the set process device 45. in this case,
As the roof substrate 375, one for a wagon has been introduced. However, the roof unit RU which has already reached the side of the overhead crane 385 is for a sedan.

On the set process device 45, the roof interior material 376 for the wagon is selected with respect to the roof substrate 375 on the back, and the roof substrate 375 is selected via the roller conveyor 377.
Transferred up and assembled by the operator.

After the work is completed, when the worker pushes the start button, the cylinder device 369 extends and the roller conveyor 3
The rear end of 65 rises and is in a forward inclined state. As a result, the roof unit RU is transferred to the pre-reversal support base 381 side, and is reversed like the roof unit RU for sedan already shown by the reversing unit 383.

After reversing, the transfer device 389 grabs it,
It moves along the rail 387 and is temporarily assembled to the floor unit and the body side unit for the wagon on the roller conveyor 361 of the main line.

FIG. 16 shows a positioning portion and a positioning structure among the floor unit FU, the body side unit BSU and the roof unit RU.

That is, the floor unit FU is provided with locate holes 197 and 199, and the body side unit BS
The U has two pins 391 and 393. The pins 391 and 393 are made of steel pipes cast in the body side base material 348 formed of aluminum die casting. However, the pins 391 and 393 may be formed integrally with the body side base material 348.

The pins 391 and 393 are located in the locate hole 19.
Floor unit FU by inserting it in 7,199
And the body side unit BSU are positioned and temporarily connected. Therefore, in this embodiment, the pins 391 and 393 and the locate holes 197 and 199 constitute a lower positioning means for positioning the floor unit FU and the body side unit BSU. The pin 391 is arranged below the front pillar 395 of the body side unit BSU, and the pin 393 is provided on the lower end side of the center pillar 397 at the joint between the front pillar 397 and the side sill 398. Therefore, the lower positioning means is arranged at least on the lower end side of the center pillar 397. Also, the pin 39 as the lower positioning means
1, 393 and locate holes 197, 199 are arranged with their axes in the vehicle width direction orthogonal to the vehicle body front-rear direction.

Positioning and temporary assembly are also performed between the body side unit BSU and the roof unit RU by means of pins and locate holes. That is, the body side unit BSU has locate holes 4 at the upper end of the front pillar 395, the upper end of the center pillar 397, and the upper end of the rear pillar 399 of the body side unit BSU, respectively.
01, 403, and 405 are provided. Further, the roof unit RU is provided with pins 413, 415 and 417 at the lower end of the front pillar 407, the upper end of the center pillar 409 and the upper end of the rear pillar 411, respectively.

Then, by inserting the pins 413, 415, 417 into the locate holes 401, 403, 405, the body side unit BSU and the roof unit RU are inserted.
Positioning and temporary connection are performed. Therefore, the locate holes 401, 403, 405 and the pins 413, 415, 4
Reference numeral 17 constitutes an upper positioning means for positioning the body side unit BSU and the roof unit RU.
This upper positioning means is at least the center pillar 3
97,409 Upper end side and front pillars 407,39
5 is arranged on the intermediate portion side.

In FIG. 16, the left body side unit BSU, floor unit FU, and roof unit R are shown.
Although only the positioning connection with the U is shown, the same applies to the positioning connection with the body side unit on the right side. Then, the pins 413, 415, and 15 of the upper positioning means.
417, locate holes 401, 403, 405
Pins 391, 393 of the lower positioning means, locate hole 1
They are arranged with their axes vertically oriented so as to be orthogonal to the axes of 97 and 199.

The pin 413 of the roof unit RU is provided at the connecting portion between the front pillar 407 and the hood ridge 408, the pin 415 is provided at the connecting portion between the center pillar 409 and the roof side rail 410, and the pin 417 is provided at the rear pillar 411. The rear roof rail 412 and the roof side rail 410 are connected to each other.

While the floor unit FU and the body side unit BSU are connected in the vehicle width direction by the lower positioning means as described above, the roof unit RU is connected.
And the body side unit BSU descend in the vertical direction with respect to the body side unit BSU which is previously coupled to the floor unit FU, so that the pins 413, 41
5, 417 are fitted into the locate holes 401, 403, 405 to be coupled. As a result, the body side unit BS is cantilevered and connected to the floor unit FU.
Upper positioning means (pin 413, 415, 417, locate hole 4) integrally formed with the free end of U to a predetermined dimensional accuracy.
01, 403, 405), the floor unit FU and the body side unit BSU.
The accuracy of building with and will be further improved.

By thus positioning and temporarily holding the floor unit FU, the body side unit BSU, and the roof unit RU between the floor unit FU, the body side unit BSU, and the roof unit RU, it is possible to automatically carry out from temporary assembly to precision. It becomes possible to abolish the equipment. Furthermore,
Even if the vehicle width is different, since each part has a function to automatically perform from temporary assembly to precision adjustment, it is not necessary to have a vehicle body jig equipment for each vehicle width, so capital investment in the vehicle body joining process Can be significantly reduced.

Incidentally, in FIG. 16, the interior parts mounted before the vehicle body is connected are not shown.

Now, the function of constructing the pin and locate hole structure will be further described.

As shown in FIG. 17, when the floor unit FU and the body side unit BSU are joined together, the positioning is easily performed, and the vehicle body precision is automatically obtained at the time of fitting. The pin 393 on the body side unit BSU side corresponds to the inside diameter of the locate hole 199 of the floor base material 113, which is an extruded material, because it has a fixed dimension due to the nature of the extruded material.

The tip portion 393a of the pin 393 has a diameter sufficiently smaller than that of the locate hole 199 so that the pin 393 can be easily inserted into the sleeve, and the base portion of the pin 393 can be inserted through the tapered surface 393b. If the fitting accuracy (clearance δ) and fitting length (L) are such that the vehicle body accuracy can be secured, the squareness θ between the floor and the body side, which has been obtained by the conventional vehicle body jig, can be located with the pin 393. It can be obtained by controlling δ and L so that the fitting relationship with the hole 199, that is, θ = tan-1 (δ / L) becomes a predetermined value or less. That is, the allowable value of the positional deviation amount S of the locate hole 403 on the upper end side of the body side unit BSU can be managed by the fitting length L and the clearance δ.

Then, as shown in FIGS. 18A and 18B, the pin 393 of the lower positioning means and the locate hole 199.
It is possible to further improve the assembling accuracy (= rectangularity) by dividing the connecting direction such as the above and the connecting direction such as the pin 415 of the upper positioning means and the locate hole 403 into the vehicle width direction and the vertical direction. it can.

In addition, the aluminum die-casting parts of the closed cross-sections have the same mating surface, even at the mating surfaces of the body side unit BSU and the roof unit RU, except for the portion connected by the pin and the locate hole. By forming ribs that suppress local cross-sectional deformation on each of them, it is possible to secure further vehicle body rigidity as compared with the conventional vehicle body structure.

The installation position of the pin and the locate hole is shown in FIG.
As described in 6, the center pillar 3 is provided between the floor unit FU and the body side unit BSU.
97, the side sill 398, and the body side unit BSU and the roof unit RU, the hood ridge 408 and the front pillar 407, the center pillar 409 and the roof side rail 41.
0 and a rear pillar 411, a rear roof rail 412, and a roof side rail 410.

These parts are parts that have been carefully reinforced in order to ensure collision performance and vehicle rigidity in the conventional vehicle body structure. Pins 391, 393, 413, 415, 4 firmly fixed to the body side unit BSU and the roof unit RU in these parts.
Locating holes 197 and 19 are integrally formed in the floor unit FU and the body side unit BSU.
Since it is connected to 9, 401, 403, and 405 with a predetermined fitting size, the input to the connecting portion is pin 391, 3
93, 413, 415, 417 and locate holes 197, 1
By being received by the entire fitting surface with 99, 401, 403, 405, the stress can be widely dispersed over the entire vehicle body. Therefore, the joint efficiency can be significantly improved, and the strength and rigidity of the vehicle body can be ensured without any special reinforcement.

Floor unit F
When the body side unit BSU and the roof unit RU are temporarily attached to U, the welding process device 5 of the welding process c
Laser welding is carried out by 8. Here, similar to the welding process of the floor unit FU, it is performed in the partition in consideration of the safety of the operator, and all the processes are performed by the automated robot. Therefore, the upper body unit UBU after being joined to the vehicle body is transferred by the roller conveyor until before the welding step (C), and is transferred by the belt conveyor using power in the welding step (C).

Further, since seats, instrument panels, and other indoor parts are mounted in the interior of the upper body unit UBU, spot welding with a spot gun as in the prior art is difficult because the spot gun cannot be inserted into the passenger compartment. is there. Therefore, welding between the floor unit FU and the body side unit BSU, and between the body side unit BSU and the roof unit RU is required to be performed from outside the vehicle interior as much as possible.

In this embodiment, as is apparent from FIG. 17, since the floor base material 113 of the floor unit FU has a double floor structure, the board 419 on the vehicle interior side and the convex on the body side unit BSU side are convex. Coupling with the part 421 is also essential. Therefore, the joint of the vehicle interior side plate 419 and the body side unit BSU side convex portion 421 on the vehicle interior side is bonded with the room temperature curable adhesive 423, and the vehicle exterior side plate 425 and the body side are joined. Unit BSU
The joint between the side plate 427 and the side plate 427 on the outside of the vehicle compartment is joined by laser welding 429. As a result, there is a gap between the plates 419 and 425 inside and outside the vehicle, which is a merit of the double-floor structure. Not only can thermal conduction to the mounted indoor parts be minimized and thermal damage to the indoor resin parts can be prevented, but also the vehicle interior side plate 419 and the body side unit BSU can be prevented. By adhering to the convex portion 421 with the adhesive 423, airtightness and watertightness can be secured without applying a vehicle body sealing material.

Since the conventional vehicle body seal generally uses a thermosetting sealing material, it is cured at the time of baking and painting the body. However, in the production method of this embodiment, the vehicle body painting step is performed. Since it is omitted, an adhesive that also functions as a sealant is required to be one that is curable at room temperature, and this is used.

Also between the body side unit BSU and the roof unit RU, the respective flanges are laser-welded 429 as shown in FIG. 17, for example, to form a closed cross-section structure. This pin 415, locate hole 403
Laser welding 429 around upper positioning means such as
As a result, the bond between the two is also strong. or,
FIG. 19 also shows around the pin 417 and the locate hole 405.
As described above, laser welding 429 is applied to form a closed cross section. At other points as well, the flanges of the roof unit and the body side unit BSU are joined together by laser welding, and the roof side rails and the like form a closed cross section.

Here, in order to improve the appearance of the adhesive surface between the floor unit FU and the body side unit BSU and the welded portion between the roof unit RU and the body side unit BSU, interior trim parts are removed in advance at this portion. If the trim parts are attached again after each joining, good appearance quality can be obtained. At this time, if the trim parts to be attached / detached are small parts within the range limited to the joint surface, the workability at the time of assembling the vehicle body parts will not be hindered.

When the upper body unit UBU is formed through the welding step (C), it is transferred to the next running part mounting step D. The running part mounting step D is the automated step (a) as described above,
As shown in FIG. 20, two automatic conveyors 431 and 433 are provided. The automatic conveyor 431 is arranged and extends on the downstream side of the welding step (C), and the pair of belts 435 are driven and controlled by a motor and a controller as in the automatic conveyor used in the welding step (C). Has become.

A transfer auxiliary device 437 is provided at the downstream end of the automatic conveyor 431. The transfer assisting device 437 can be moved up and down by a cylinder device 439. The downstream automatic conveyor 433 is also the upstream automatic conveyor 4
Similar to 31, a pair of motor-driven belts 441 are provided.

The automatic mounting machine 59 is installed on one side of the pair of automatic conveyors 431 and 433. The automatic mounting machine 59 includes a rail 443, and the rail 433 is supported by a lifting device 445 and is configured to be lifted and lowered. A body transfer device 447 is movably supported on the rail 443, and the body transfer device 447 grips the upper body unit UBU, transfers it along the rail 443, and can be detached at a predetermined position.

The supply device 61 of the underrunning unit URU includes a pair of automatic transfer conveyors 449 and 451 extending from the parts storage 105 and a ball roller stand 45.
3, a roller conveyor 455 which is a manual conveyor, and a supply cart device 459.

The automatic conveyors 449 and 451 are provided with a pair of motor-driven belts 457.
At 451 a pallet 459 having an underrunning unit URU and an empty pallet 461 are transferred. Each pallet 459, 461 is provided with a set pin 463. The pallets 459 and 461 are provided with guide rollers 464 that rotate horizontally at the four corners.

The ball roller stand 453 is provided between the automatic conveyors 449 and 451. The roller conveyor 455 includes a ball roller base 453 and a guide rail 4
The pallet 459 is transferred to the 56 side. The guide rail 456 is used for the automatic conveyor 43 of the main line.
1 and 433, the pallet 459 is taken over and is transferred between the automatic conveyors 431 and 433. That is, the guide rail 456 includes a pair of inwardly facing channel material-shaped rails 465, and a stopper 467 is provided at an end portion of the guide rail 456.

Then, as shown in FIG. 20, the upper body unit UBU on which the interior material is mounted has an automatic conveyor 431.
When the upper body unit UBU is transferred from the welding process device 58 side to the transfer auxiliary device 437 by the sensor, this is detected by the sensor, and the cylinder device 439 of the transfer auxiliary device 437 is lifted, and the upper body unit U is moved.
BU becomes free from the automatic conveyor 431.

Then, the rail 443 of the automatic mounting machine 59 descends, the body transfer device 447 grips the upper body unit UBU, and the rail 443 rises again by the elevating device 445. At this elevated position, the body transfer device 447
Moves to the downstream side along the rail 443 and stops on the guide rail 465 in the supply device 61 of the underrunning unit URU.

On the other hand, the underrunning unit URU
Are transported from the parts storage area 105 shown in FIG. The underrunning unit URU is composed of an engine, a power train, a suspension, a fuel system, etc., and constitutes a traveling drive system. In the parts storage 105, a pallet 459 selected from pallets equipped with several kinds of underrunning units URU is transferred in accordance with a production order, and one automatic conveyor 44
It is supplied by 9 as shown in FIG. Automatic conveyor 4
From the end of 49, the pallet 459 is the ball roller base 45.
3 will be transferred automatically. Next, the operator slides the pallet 459 on the ball roller base 453 and transfers it to the guide rail 465 via the roller conveyor 455.

Further, the operator moves the pallet 459 along the guide rail 465 to the automatic conveyor 4 of the main line.
It is moved to 31, 433. This position is positioned by the stopper 467. When the pallet 459 moves along the guide rail 465, the pallet 45
The smooth movement can be performed by the guide rollers 464 at the four corners of 9.

Thus, the underrunning unit U
When the RU is positioned between the automatic conveyors 431 and 433 of the main line, the rail 443 of the automatic mounting machine 59 descends and the upper body unit UBU is automatically mounted in the underrunning unit URU.

Then, the worker performs the fastening work of the connecting portion between the upper body unit UBU and the underrunning unit URU, and the fastening work of both is performed. Therefore, in this process, the underrunning unit URU
With this, it becomes possible for a worker to perform a connecting work with the upper body unit UBU at the same height level as the vehicle main body MB, difficult work such as upward work is eliminated, and workability is remarkably improved.

When the joining work is completed, the rail 443 is moved up again by the driving of the elevating device 445, the body transfer device 447 is further moved to the downstream side in the raised position, and the vehicle body MB is moved onto the automatic conveyor 433 on the downstream side. When I arrived,
The rail 443 is lowered again by driving the elevating device 445, and the vehicle body MB is placed on the automatic conveyor 443. At this time, the body transfer device 447 releases the vehicle body MB, and the body transfer device 447 returns to the original upstream position as the rail 443 is lifted by the elevating device 445 again.

[0218] The vehicle body MB is transferred by the automatic conveyor 443 to the exterior article mounting step which is the next step. Further, the emptied pallet 459 is returned to the original position along the guide rail 465, and is handed over to the automatic conveyor 451 via the roller conveyor 455 and the ball roller base 453.

The pallet 459 is returned to the parts storage area 105 by the automatic conveyor 451 again, the next underrunning unit URU is selected, and is again supplied to the main line side as described above.

Next, in the exterior parts attaching step, the rear bumper, the front bumper and the front end module are first attached while the vehicle body MB is transferred on the roller conveyor which is the manual conveyor in the manual step (b). The front end module is a radiator, a condenser, a headlamp, and a module component that mounts these and has a mounting portion to the vehicle body MB.
The worker connects the front end module to the vehicle body MB while transferring the vehicle to the vehicle body MB side. Since the rear bumper and front bumper are relatively lightweight, the operator can hold them in their hands and manually
Bind to.

After the step of attaching the exterior parts, the step of adding the liquid substance is carried out.
B is transferred to the liquid adding process device G. In the liquid material adding process device G, long life coolant, gasoline, brake oil, and power steering oil are respectively injected. The vehicle main body MB into which the oils and fats have been injected is transferred to the window process of the next process by a worker via a manual roller conveyor.

The window process device H is also a manual process (b), in which lamps installed on the rear end panel are combined and further front and rear window shield panels are mounted. After installing the window shield panel, move it on the roller conveyor toward the door mounting process.

In the door mounting process device I, the left and right doors, which are preassembled, are assembled to the vehicle body MB.
In a conventional vehicle, the door panel main body is attached to the white body, painted together, then removed and the parts are assembled to the door, and the door is assembled to the vehicle main body MB again, which is a troublesome work. Since the painting process is omitted, such troublesome work is unnecessary. In the present embodiment, the left and right doors are assembled as a unit in advance and are directly assembled to the vehicle body MB. Therefore, the assembling work of the vehicle can be remarkably facilitated as compared with the related art.

Assembly of the door will now be described with reference to FIG. FIG. 21 shows a door sub RH process device 77, and the device 77 and the door sub LH process device 78 have substantially the same configuration although there are left and right differences. That is, for the manual roller conveyor 467, the sash module pallet 469, inner module pallet 471, interior module pallet 473, door mirror unit pallet 4
75 are arranged to assemble the door unit by the cell production method.

The sash module palette 469
Is placed on a load fluctuation type stand 477 with wheels,
Regardless of the number of sash modules 479 for the pallet 469, the pallet 469 is always the roller conveyor 46.
It is maintained at the same height level as 7, making the work easier.

Then, the worker transfers the door sash module 479 from the pallet 469 to the roller conveyor 467 by using the assisting device (h) and moves the door sash module 479 on the roller conveyor 467 while moving the inner sash module 479. Module 481, interior module 48
3. The door mirror unit 485 is assembled in sequence to complete the door unit. The completed left and right door units are supplied to the main line by the hand push of the worker,
It is attached to the vehicle body MB on the main line by the hand of an operator.

Next, the vehicle body MB is sent to the exterior decoration process. In this outer surface decoration process device E, a worker moves the vehicle body MB on the roller conveyor in the manual process (b) while the roof resin panel 143, the rear fender resin panel 145, and the front fender resin panel 14 are moved.
7. The resin panel 149 for the trunk lid and the resin panel 151 for the hood are sequentially assembled. These resin panels 14
Since 3, 145, 147, 149, and 151 are colored components, the component storage space 111 is required as a temporary storage space for corresponding components, depending on the color variation.

Each pallet 89, 91, 93, 95, 97 supplied to the main line side is sorted in advance in the parts storage area 111 in the order of production, and is manually mounted on the vehicle body MB.

FIG. 22 shows the mounting position of each resin panel. In FIG. 22, the vehicle main body MB is partially omitted. In contrast to the vehicle body MB, the roof resin panel 143 has a roof opening 49 of the vehicle body MB.
It is attached to 1,493. The rear fender resin panel 145 is attached to the outer surface of the rear fender 497 of the vehicle body MB. The front fender resin panel 147 is attached to the outside of the hood ridge 408 of the vehicle body MB.

The trunk lid resin panel 149 is mounted on the trunk lid inner 503, and is mounted on the vehicle body MB together with the trunk lid inner 503. The trunk lid inner 503 is formed by aluminum die casting.

The hood resin panel 151 is attached to the hood inner 507 and, together with the hood inner 507, is attached to the engine room of the vehicle body MB. The hood inner 507 is formed by, for example, aluminum die casting.

Although not shown in FIG. 1, the door resin panels 509 and 511 are assembled to the front door unit 513 and the rear door unit 515, respectively.

Details of the bonding structure of each resin panel are as follows.
This is shown in FIGS. 23, 24, and 25.

FIG. 23 shows the roof resin panel 143
The structure attached to the roof opening 491 is shown. A clip portion 143a is integrally provided on the roof resin panel 143 so as to project, and is engaged with a fitting hole 491a provided at an edge portion of the roof opening 491. The edge portion 491b provided with the fitting hole 491a is formed to be slightly thicker, and the tip end thereof is in contact with the inner surface of the roof resin panel 143.

The periphery of the edge portion 491b of the roof opening 491 is lower than the roof side rail 410 by one step, and the convex portion 143b of the peripheral portion of the roof resin panel 143 comes into contact therewith. There is. On the outer peripheral edge of the roof resin panel 143, a projection 143c for engaging a weather strip is provided over the entire circumference. Then, the convex portion 143b of the roof resin panel 143
A seal material 517 as a seal portion is filled between the roof opening 491 and the opening edge portion 491b of the roof opening 491.

By thus providing the sealing material 517 near the clip portion 487a, the sealing material 5 is
The function of 17 can be reliably maintained, and the airtightness and watertightness inside and outside the vehicle can be reliably maintained. And
Roof side rail 410 and roof resin panel 14
A weather strip 519 as a seal portion is provided in the gap between the sheet 3 and the sheet 3 to improve the appearance and ensure further sealing.

[0237] The resin panel 14 for the front fender
7 is connected to the hood ridge 408 by bolts and nuts 519, as shown in FIG. The bolts and nuts 519 are subjected to rust prevention for rust prevention.
Further, the resin panel 147 for the front fender is provided with a curved resin hinge 147 a, and the hood ridge 40
8 and the like and the resin panel 147 for the front fender absorbs the difference in the coefficient of thermal expansion.

[0238] The resin panel 145 for the rear fender
Is attached to the wheel house opening edge 521 of the body side unit BSU by a separate resin clip 523. Resin panel for rear fender 495
Also, a resin hinge 145a for absorbing the difference in thermal expansion is provided.

As described above, the resin panels 143, 145, 1
The mounting of 47, 149, 151 is carried out appropriately on the vehicle body side by an integral clip or a separate bolt nut, resin clip or the like. Therefore, FIGS.
Each of the panels 143, 147, and 145 described in 1. is not limited to the respective mounting structure, and can be appropriately selected and connected.

Also, in the other panels not described with reference to FIGS. 23 to 25, the bonding structure thereof can be appropriately selected.

The resin panel 143 colored in this way is
By molding the outer surface of the vehicle body with 145, 147, 149, 151 to make it a vehicle body color, it is possible to respond to various customer needs by separating the vehicle design from the investment in the vehicle manufacturing line and responding to various customer needs. The investment for plate shaping can be significantly reduced. At the same time, by installing a resin panel on the vehicle body side in the final process of vehicle assembly, it is possible to significantly reduce scratches in the factory, improve appearance quality, and significantly reduce the cost required to repair scratches. can do.

Furthermore, resin panels 143, 1 for external decoration.
By using 45, 147, 149, 151 as consumables,
This resin panel 14 is used to reduce the appearance and appearance of the vehicle.
By replacing only 3, 145, 147, 149, 151, it becomes possible to refresh including color and modeling, and by responding to customer needs, it is possible to extend the life of the skeleton that is the base of the vehicle. it can.

That is, it becomes possible to reduce the amount of waste as a result, by making it possible to replace the parts only at the parts which the customer feels necessary. Further, in order to prolong the life of the skeleton that serves as the base of the vehicle, it is extremely effective to use a material having high corrosion resistance such as aluminum in comparison with the conventional steel body from the viewpoint of piercing and rustproofing of the structure.

As described above, in the embodiment of the present invention, the painting process is abolished and a light alloy such as aluminum having excellent corrosion resistance is used as the structural material of the vehicle body, so that the vehicle body structure is extremely advantageous. . That is, generally, the coating process of an automobile is composed of a chemical conversion treatment, an electrodeposition coating, an intermediate coating and a top coating as shown in FIG. 2 of JP-A-8-244572. The chemical conversion treatment and the electrodeposition coating are mainly performed. Rust prevention, and the middle and top coats are mainly used for design and beauty.

On the other hand, when a light alloy such as aluminum is used as the structural material, an oxide film having a good corrosion resistance is naturally formed in the atmosphere, and it has excellent corrosion resistance for self-defense. Therefore, if the electrodeposition coating on the steel car body is peeled off due to contact with stones or obstacles, the rust prevention performance will be significantly reduced, whereas in the case of light alloys such as aluminum, repeated oxide film formation will occur. So, the anti-corrosion performance is remarkably superior to that of steel body. As a result, like the present embodiment, it is possible to eliminate the painting process, significantly reduce the time required for automobile production, and enable make-to-order production.

Further, the production line can be remarkably shortened, and the factory installation area can be greatly reduced. Further, a light alloy such as aluminum having excellent corrosion resistance is used as the structural material of the vehicle body and the painting process after the vehicle body assembly is eliminated, so that the vehicle body assembly line and the vehicle assembly line can be integrated.

That is, after assembling the floor unit of the vehicle body, the seat, the instrument panel, the harness, etc., the weight, the difficult-to-work indoor parts are mounted, and then the interior parts such as the door trim and the roof lining are sub-assembled beforehand, By joining the roof unit to the floor unit, it is possible to eliminate the heavy work of assembling under a bad work posture, which was conventionally performed in a narrow vehicle compartment, and the vehicle assembling work is significantly improved.

Also, the abolition of the painting process eliminates the need to change the color of the painting equipment, and since the body assembly and the vehicle assembly are completely synchronized, the number of inventory of in-process bodies before and after the conventional painting process and the stock in the factory are kept. It is possible to significantly reduce the number of parts. Therefore, it is possible to realize a very compact production line in which the line length from conventional vehicle body assembly to vehicle assembly is greatly reduced.

As a result, it is possible to significantly reduce the period required from the customer's order to the delivery. Therefore, by switching from the conventional forecast production to make-to-order production,
The number of stock vehicles waiting to be shipped can also be significantly reduced, and transportation costs,
The cost required for inventory management can be reduced.

In the process of joining the floor unit, the body side unit and the roof unit, each has a pin and a locate hole structure having a positioning / temporary holding function,
By fitting and fastening the pin and the locate hole, it is possible to automatically perform each temporary assembly to precision adjustment, and as a result, it is possible to eliminate so-called body jig equipment at the time of so-called vehicle body connection .

The floor unit is formed by fitting several extruded members together, and by using aluminum or the like as the structural material, it is possible to reduce the weight of each part to about half that of steel. The load on the operator in the subassembly process can be significantly reduced.

At the same time, by extruding the extruded material whose die cost is lower than that of the press die as linearly as possible and by not performing bending or the like, it is possible to reduce the secondary machining cost of the extruded material and to reduce the cost of the conventional press parts. Along with the replacement of extruded materials and castings, it is possible to significantly reduce mold investment.

Furthermore, by fixing a colored resin panel or the like on the outer panel of the vehicle body to the vehicle body with bolts or clips in the final production process, the vehicle can be designed to meet various customer needs by responding to modeling and vehicle body color. Can be dealt with separately from the investment in the vehicle manufacturing line, so that the investment in various outer panel shaping can be reduced.

Also, by mounting the resin panel on the vehicle body in the final step of the vehicle assembly, it is possible to significantly reduce the scratches in the factory, improve the appearance quality, and repair the scratches. The cost can be reduced.

Further, by using the outer resin panel as a consumable item, it is possible to refresh the color and the molding by replacing only this panel with respect to deterioration of the appearance and appearance of the vehicle. By responding to needs, it is possible to extend the life of the skeleton that is the base of the vehicle.
In other words, by allowing replacement of parts only at the part that the customer feels necessary, the amount of waste can be reduced as a result.

In order to extend the service life of the skeleton which is the base of the vehicle, it is effective to use a material having high corrosion resistance such as aluminum in comparison with the conventional steel body from the viewpoint of preventing perforated rust of the structure.

26 to 32 show an embodiment relating to a modified example of the floor constituting base material, FIG. 26 is an exploded perspective view, and FIG. 27 is a sectional view showing an exploded state of a main part. It should be noted that the components corresponding to those in the above-described embodiment will be described with the same reference numerals, and redundant description will be omitted.

On the other hand, in this embodiment, as shown in FIGS. 26 and 27, the floor-constituting base material 113 includes the front floor 601 and the dash lower 603 of the skeleton of the engine compartment.
Includes and. The dash lower 603 is mounted on the reinforcement 605.

The front floor 601 is formed of an extruded material of a light metal such as an aluminum alloy and a magnesium alloy, and the front-rear direction of the vehicle body is the extruding direction.
The front floor 601 includes a tunnel portion 607 having a closed cross-section structure, left and right flat portions 609, and left and right side sill portions 611. And this front floor 60
The dash lower 603 is joined to the front end portion of No. 1. Therefore, especially the flat part 6 of the front floor 601
The front end of 09 is a male fitting portion 613.

Like the front floor 601, the dash lower 603 is made of an extruded material of a light metal such as an aluminum alloy and a magnesium alloy, and the extruding direction is the vehicle width direction. The dash lower 603 is provided with a tunnel corresponding portion 615 for joining the tunnel portion 607 of the front floor 601 and a fitting female portion 617 for joining the fitting male portion 613.

The relationship between the male fitting portion 613 and the female fitting portion 617 is shown in FIG. 27, which is a sectional view taken along the line XXVII-XXVII in FIG.
It looks like the cross-sectional view. The front end 613a of the male fitting portion 613 is formed to be inclined so that the upper portion thereof protrudes more forward than the lower portion in accordance with the inclination of the dash lower 603, and the upper front end 625a of the male fitting portion 613 is formed to the lower front end 625.
It projects more toward the front of the vehicle than b. Also, the mating male part 613
The groove-shaped portions 619a and 619b formed in the vehicle width direction are provided as concaves and convexes in the vertical direction. The upper groove-shaped portion 619a is located on the front side of the lower groove-shaped portion 619b.

[0262] The fitting female portion 617 of the dash lower 603.
Are upper and lower two-stage flanges 621a extending rearward of the vehicle body,
It is formed by 621b. The upper flange 621a of the female fitting portion 617 is formed thinner than the lower flange 621b. In this embodiment, the upper flange 621a is formed in the same thickness as the general portion of the dash lower 603, and the lower flange 621b is formed thicker than the general portion. Rear end 6 of lower flange 621b
23b protrudes toward the vehicle rear side from the rear end 623a of the upper flange 621a.

Claw-shaped portions 627a and 627b are provided as convex portions on the lower surface of the upper flange 621a and the upper surface of the lower flange 621b, respectively. The positional relationship between the upper and lower claw-shaped portions 627a and 627b is determined by the flange 6
21a and 621b are similar to the rear ends 623a and 623b, and the upper claw-shaped portion 627a is the lower claw-shaped portion 6a.
It is offset and arranged obliquely so as to be located on the front side of 27b.

The reinforcement 605 is made of, for example, a casting material of a light metal such as an aluminum alloy or a magnesium alloy. The dash lower 603 is mounted on the reinforcement 605 and joined by, for example, laser welding. ing. In addition,
The dash lower 603 and the reinforcement 605 can also be joined by other methods such as adhesion, rivet fastening, and bolt nut fastening.

The front floor 601 is joined to the dash lower 603 by fitting the fitting male portion 613 between the upper and lower flanges 621a and 621b of the fitting female portion 617. At the time of this fitting, since the upper flange 621a is formed thinner than the lower flange 621b, it is relatively easier to bend, and the fitting male portion 613 is fitted between the flanges 621a and 621b. When this is done, the upper flange 621a can be positively elastically deformed, and the insertion force at the time of fitting can be reduced.

At this time, for example, as shown in FIG. 28, by setting the dash lower receiving portion 629, the lower surface of the lower flange 621b is supported, and the elastic deformation of the lower flange 621b is further suppressed, and the upper flange 621a. It is also possible to elastically deform only the one and further reduce the insertion force when fitting the fitting male portion 613 between the flanges 621a and 621b.

Also, at the time of this fitting, the lower flange 62
Since the rear end 623b of the 1b projects rearward from the rear end 623a of the upper flange 621a, the visibility of the lower flange 621b and the claw-shaped portion 627b can be improved, and the fitting at the time of assembly can be improved. The guide performance of the fitting male portion 613 with respect to the female portion 617 can be improved, and the assembling property can be greatly improved.

When the male fitting portion 613 is fitted between the flanges 621a and 621b, the upper and lower groove-shaped portions 619a and 619 are formed.
Upper and lower claw-shaped portions 617a and 617b engage with b, respectively. As a result, the dash lower 603 and the front floor 601 can be positioned relative to each other, the assembling accuracy in the vehicle front-rear direction can be easily ensured, and a positioning jig is unnecessary. Further, since the male fitting portion 613 is configured to be fitted between the upper and lower flanges 621a and 621b, it is possible to reliably perform vertical positioning. In addition, after the male fitting portion 613 is fitted between the upper and lower flanges 621a and 621b, the pawl-shaped portions 627a and 627 may be vibrated while being conveyed to the welding process device 3 while being conveyed.
Since b is engaged with the groove-shaped portions 619a and 619b, the fitting between the front floor 601 and the dash lower 603 is difficult to be disengaged, and the position is accurately transferred to the welding process device 3 without fail. can do. Therefore, the dash lower 603 and the front floor 601 can be directly joined by laser welding or the like,
A positioning jig such as a clamp at that time is also unnecessary.

When there is an input from a front side member (not shown) at the time of a vehicle frontal collision, the upper and lower groove-shaped portions 619a and 619b and the claw-shaped portion 62 as in the above embodiment.
If 7a and 627b are displaced back and forth, dash lower 6
The deformation amount of 03 can be suppressed. This will be described with reference to FIG.

FIG. 29 (a) shows that when the upper and lower claw-shaped portions 627a and 627b of the above embodiment are displaced forward and backward,
(B) shows a case where they are vertically aligned. First,
As shown in FIG. 29B, when a load F is input due to a frontal collision, the load is concentrated on the lower claw-shaped portion 627b and the groove-shaped portion 619b close to the closed cross-sectional structure of the dash lower 603, and the claw shape is formed. The dash lower 603 tends to rotate around the portion 627b and the groove-shaped portion 619b, the upper side of the male fitting portion 613 of the front floor 601 is largely crushed, and the displacement amount L2 of the dash lower 603 becomes large.

On the other hand, as shown in FIG. 29A, upper and lower claw-shaped portions 627a and 627b and groove-shaped portions 619a and 619a and
When 19b has a distance S in the front-back direction, the lower claw-shaped portion 627b and the groove-shaped portion 619b are also the dash lower 603.
When the load F is input, concentration of the load on the lower claw-shaped portion 627b side is suppressed, and the input F allows the front floor 60 to be closed.
The front end of the first male fitting portion 613 is crushed and deformed as a whole in the vertical direction, and the displacement amount of the dash lower 603 is also L1, which can be greatly reduced compared to L2.

30 to 32 further show a guide structure for joining the dash lower 603 and the front floor 601.

FIG. 30 is a perspective view showing the substantially right half of the reinforcement 605, and FIG. 31 is the XXXI-XX of FIG.
32 is a sectional view taken along the line XI, and FIG. 32 is a sectional view taken along the line XXXII-XXXII in FIG.

First, as shown in FIG. 30, a boss 633 is projectingly provided on the tunnel engaging portion 631 of the reinforcement 605. The boss 633 is fitted in a notch portion 635 provided at the tip of the tunnel portion 607 of the front floor 601. The cutout portion 635 is provided at the tip of the ceiling portion of the tunnel portion 607, the front end is opened, and the cutout portion 635 is rearward for a predetermined length.
For example, it is cut out to a length slightly longer than the boss 633.

[0275] On the left and right sides of the reinforcement 605 in the vehicle width direction, vertical ribs 637 are provided so as to project toward the rear of the vehicle body at intervals inside the vertical wall 635 at the outermost end in the vehicle width direction. ing. And the vertical wall 635 and the rib 6
37 and the side sill 611 of the front floor 601
The front ends are fitted and joined together. These connections are performed by welding by laser welding in a welding process device, but they can also be joined by bonding, rib fastening, bolt fastening, or the like.

Then, the dash lower 603 is previously mounted on the reinforcement 605 and coupled. At the time of joining the reinforcement 603 and the front floor 601 as described above, when the male fitting portion 613 is inserted between the upper and lower flanges 621a and 621b, the boss 633 of the reinforcement 605 is inserted into the front floor 60.
1 is engaged with the notch 635 at the front end of the tunnel portion 607, and the tip of the side sill 611 is connected to the reinforcement 60.
5 is engaged between the vertical wall 635 and the rib 637, and the fitting male portion 613 is guided by the both to form the flange 621.
It will be inserted between a and 621b.

Under this guide, the male fitting portion 613 is inserted between the flanges 621a and 621b by inserting the groove-shaped portions 619a and 619b into the claw-shaped portions 627a and 627a.
It is performed until 627b is engaged. Therefore, the front floor 601 and the dash lower 603 can be joined very easily. The engine compartment skeleton and the front floor 601 are large in weight and size and are difficult to carry by hand.
The transportation is performed by using a transportation device such as a trolley, but the joint structure as described above facilitates the transportation work between the engine compartment skeleton part and the front floor 601 while facilitating the coupling work between them. You can

In the above embodiment, as shown in FIG. 29 (b), the rear ends 623 of the upper and lower flanges 621a and 621b.
The case where a and 623b have the same rearward protruding position has been described as a comparative example, but this case can also be adopted as one of the embodiments.

Also, in the above embodiment, the upper flange 6
21a is thin and the lower flange 621b is thick, but both may be formed to have the same thickness. In this case, both flanges 621a and 621b can be thickened or thinned.

FIG. 33 shows an embodiment in which the claw-shaped portion is modified. (A) is a sectional view in a disassembled state, and (b) is a sectional view of an essential part. In addition, the same components as those in the above-described embodiment will be described with the same reference numerals, and redundant description will be omitted. In this embodiment, as shown in FIG. 33, the claw-shaped portion 639 is provided.
a and 639b are formed in a wedge shape that is inclined inward in the fitting direction.

According to this embodiment, the claw-shaped portion 639a,
Since 639b is inclined in the fitting direction, when the fitting male portion 613 of the front floor 601 is fitted between the upper and lower flanges 621a and 621b, the claw-shaped portions 639a and 639 are provided.
It is possible to suppress the b from becoming a resistance for fitting and reduce the insertion force. After fitting, the claw-shaped portions 639a, 63
The groove 9b can be engaged with the groove-shaped portions 619a and 619b so as to fit into the groove-shaped portions 619a and 619b, thereby further improving the positioning accuracy.

FIG. 34 is a sectional view of an embodiment showing a modified example of the joint between the dash lower 603 and the front floor 601. The components corresponding to those in the above embodiment will be denoted by the same reference numerals and will not be described.

On the other hand, in this embodiment, after the fitting male portion 613 of the front floor 601 is fitted to the upper and lower flanges 621a and 621b, the rivets 641a and 641 are provided.
bound by b. Rivet 641a, 641b
Are provided at predetermined intervals, for example, in the vehicle width direction. Even in such a joint structure, the upper and lower rivets 641a,
Since the 641b is offset in the front-rear direction, it is possible to prevent the load from being concentrated on the lower rivet 641b even if the load is input from the front side member in the case of a frontal collision, as shown in FIG. The same effect as described above can be maintained. The rivets 641a and 641b can be replaced with bolts and nuts.

FIG. 35 shows still another embodiment in which the joining structure is modified, (a) is a sectional view, and (b) is a sectional view of a main part. The components corresponding to those in the above embodiment will be denoted by the same reference numerals and will not be described.

In this embodiment, the joint structure on either side of the upper and lower flanges 621a and 621b has the same structure, and the upper joint structure is shown in FIG.
The main part of (a) is enlarged and shown to (b), and the enlarged illustration of the joining structure by the side of the lower flange 621b is abbreviate | omitted.

As shown in FIGS. 35 (a) and 35 (b), the male fitting portion 613 of the front floor 601 has a groove-shaped portion 619a.
64 along the groove-shaped portions 619a and 619b behind the
3a and 643b are provided. Grooves 643a, 64
3b is similarly continuously formed along the groove-shaped portions 619a and 619b. However, the groove portions 643a and 643b may have a structure in which concave portions are continuously provided at predetermined intervals. The groove portions 643a and 643b are configured to face the end portions 623a and 623b of the upper and lower flanges 621a and 621b.

Then, the upper and lower flanges 621a, 621
After fitting the fitting male portion 613 of the front floor 601 to b, as shown in FIG. 35, the rear ends 6 of the flanges 621a and 621b are filled with adhesives 645a and 645b.
23a and 623b and the groove portions 643a and 643b are adhered to each other, and the rear end portion of the groove-shaped portion 619a and the claw-shaped portion 6 are bonded.
27a is bonded to the rear end. The front floor 601 and the dash lower 603 can be joined also by such adhesion.

Also in the embodiments of FIGS. 1 to 25, the floor constituent base materials are joined to each other and the body side unit, the roof side unit and the floor unit are joined together by laser welding or the like. It is also possible to use joining, fastening joining with rivets or bolts and nuts.
Further, the floor unit FU and the like are not limited to those formed of extruded material, and a honeycomb material or the like can be used.

[Brief description of drawings]

FIG. 1 is a process for manufacturing an automobile according to an embodiment of the present invention,
It is an outline top view of a factory showing the whole manufacturing process device.

FIG. 2 shows a completed state of each step, (a) is a welding step completed state, (b) is a state in which a rear floor module and a rear end module are attached, (c) is a floor step completed state, and (d) is a body side. With the unit attached, (e) shows the roof unit attached, (f)
Is a state in which the upper body unit is mounted on the running unit, (g) is a state in which the exterior part mounting process, liquid addition process, window process, door mounting process are completed, and (h) is a state in which the exterior decoration process is completed. It is a schematic plan view.

FIG. 3 is a schematic enlarged perspective view of a main part of a floor process apparatus A.

4A and 4B show a main floor constituent base material, FIG. 4A is an exploded perspective view, and FIG. 4B is a sectional view taken along line bb of FIG.

FIG. 5 shows a joined state of the main floor constituent base materials,
(A) is an enlarged cross-sectional view after the start of joining, (b) in the middle of joining, and (c) after the completion of joining.

FIG. 6 is an exploded perspective view of an engine compartment skeleton.

FIG. 7 shows a rear floor skeleton, (a) is a perspective view,
(B) is a partially exploded perspective view.

8A and 8B show a main floor constituent base material, FIG. 8A is an exploded perspective view of a reference size, FIG. 8B is an exploded perspective view for expanding a vehicle width, and FIG. 8C is an exploded perspective view for expanding a wheel base. Is.

FIG. 9 is a schematic enlarged perspective view of a welding process apparatus.

FIG. 10 is an enlarged cross-sectional view showing a state after the main floor constituent base material is welded.

FIG. 11 is an enlarged perspective view showing a rear floor module process device.

FIG. 12 is an enlarged perspective view showing a rear end module process device.

FIG. 13 is an enlarged exploded perspective view showing an assembled state of the floor unit.

FIG. 14 is an enlarged perspective view showing an assembled state of the upper body unit.

FIG. 15 is a perspective view showing a part of a roof process apparatus.

FIG. 16 is an exploded perspective view showing a combination of a floor unit, a body side unit, and a roof unit.

FIG. 17 is an enlarged sectional view of an essential part showing the coupling between the floor unit and the body side unit.

18A and 18B show a combination of a floor unit, a body side unit, and a roof unit, FIG. 18A is a sectional view before the roof unit is attached, and FIG. 18B is a sectional view after the roof unit is attached.

FIG. 19 is a main-portion cross-sectional view illustrating welding of the roof unit and the body side unit.

FIG. 20 is a perspective view showing a running unit mounting process device.

FIG. 21 is a perspective view showing a door sub-RH process device.

FIG. 22 is an exploded perspective view showing the attachment of the resin panel.

FIG. 23 is a main-portion cross-sectional view showing a mounting mode of a roof resin panel.

FIG. 24 is a main-portion cross-sectional view showing a mounting form of a front fender resin panel.

FIG. 25 is a cross-sectional view of essential parts showing a mounting form of a resin panel for a rear fender.

FIG. 26 is an exploded perspective view of an embodiment according to a modified example of the floor constituent base material.

FIG. 27 is a cross-sectional view showing a disassembled state of the dash lower and the front floor.

FIG. 28 is a cross-sectional view illustrating assembly.

29 (a) and 29 (b) are sectional views showing an operation at the time of collision, in which (a) is a sectional view of a lower flange projecting rearward with respect to an upper flange, and (b) is a projection of rear ends of upper and lower flanges at the same position FIG.

FIG. 30 is a perspective view showing a substantially right half of the reinforcement.

31 is a sectional view taken along the line XXXI-XXXI of FIG. 30.

32 is a sectional view taken along the line XXXII-XXXII of FIG.

FIG. 33 is a cross-sectional view of an exploded state of the front floor and the dash lower of the embodiment showing a modified example of the claw-shaped portion.

FIG. 34 is a sectional view showing an embodiment according to a modified example of the joining structure.

FIG. 35 shows an embodiment according to another modification of the joining structure, (a) is a sectional view, and (b) is an enlarged sectional view of a main part of (a).

[Explanation of reference symbols] FU Floor unit BSU Body side unit UBU Upper body unit URU Under running unit MB Vehicle body A Floor process equipment B Indoor part mounting process device C Body main process device D Running parts mounting process device E Exterior decoration process device 113 Floor base material 143a Clip portion 197, 199, 201 Locate hole 211 Fitting female portion 213 Fitting male portion 221 Back wall 223 Positioning convex portion 225 Positioning concave portion 227 Clip convex portion 229 Clip concave portion 231 Contact surface 233 Adhesive 235 Fitting Inner surface of female part 315 Weld 348 Body side base material 375 Roof base material 423 Adhesive 429 Weld 391, 393 pin (lower positioning means) 197, 199 Locate hole (lower positioning means) 413, 415, 417 pin (upper position) Locating means 401, 403, 405 Locate hole (upper positioning means) 395, 407 Front pillar 397, 409 Center pillar 517 Seal part 523 Clip 601 Front floor (floor constituent base material) 603 Dash lower (floor constituent base material, engine compartment Skeleton part) 613 Fitting male part 617 Fitting female part 619a, 619b Groove shape part 621a, 621b Flange 623a, 623b End part 627a, 627b, 639a, 639b Claw shape part 641a, 641b Rivet 645a, 645b Adhesive

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Ohira 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Masami Tashiro, 2 Takara-cho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Inventor Takashi Matsuoka 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Inventor Takamitsu Tajima 2 Takara-cho, Kanagawa-ku, Yokohama, Kanagawa (72) Inventor Kenji Kanamori 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Pref. Nissan Motor Co., Ltd. (56) References JP-A-9-76939 (JP, A) JP-A-9-280232 (JP, A) JP-A-7-81614 (JP, A) JP 7-52828 (JP, A) JP 6-199248 (JP, A) JP 6-199152 (JP, A) JP 5-24563 JP, A) JP flat 3-294070 (JP, A) JP flat 1-204870 (JP, A) JP Akira 63-150126 (JP, A) (58 ) investigated the field (Int.Cl. ^7, DB name) B62D 65/00 B62D 65/04 B62D 25/02 B62D 25/08

Claims (33)

(57) [Claims] 1. A floor step of combining a plurality of floor constituent base materials of an automobile, each of which is formed of a light metal material, and joining the combined floor constituent base materials to form a floor base material; and a floor interior material to the floor base material. Indoor parts mounting step of assembling materials into a floor unit, and a body side unit that constitutes a side portion of the automobile by assembling body side interior materials to body side base materials,
A body main step of joining a roof interior material to a roof base material, which constitutes the upper part of the automobile, and the floor unit to form an upper body unit, and an underbody consisting of an engine, a powertrain, a suspension, etc. Manufacture of an automobile, comprising: a running part mounting step of assembling a running unit to the upper body unit to form a vehicle body; and an outer surface decoration step of attaching a decorative outer surface covering member to the vehicle body. Method. 2. A floor process apparatus for forming a floor base material by an operator combining a plurality of floor constituent base materials of an automobile, each of which is molded of a light metal material, on a manual conveyor and joining the combined floor constituent base materials. , An indoor component mounting process device that receives the floor base material on a manual conveyor and an operator assembles a floor interior material to the floor base material to form a floor unit, and the floor unit receives the floor unit on a manual conveyor. A body side unit that forms a side surface portion of the automobile by assembling a body side interior material to a body side base material; and a roof unit that forms a top portion of the automobile by assembling a roof interior material on a roof base material, The unit is assembled by the operator, and the robot is accepted on the automatic conveyor driven by the drive means. A main body process device that joins together by means of an engine to form an upper body unit, and an underrunning unit consisting of an engine, a powertrain, a suspension, and the like by a supply device, and the upper body unit is lifted to assemble the two to assemble the two. Manufacture of an automobile, comprising: a running part mounting process device that forms a main body; and an external surface decoration process device that receives the vehicle main body on a manual conveyor and an operator attaches a decorative external surface covering member. apparatus. 3. A floor unit in which a floor interior material is assembled to a floor base material obtained by combining and joining a plurality of floor constituent base materials of an automobile, each of which is molded by a light metal material, and a body side interior material is assembled to a body side base material. An upper body unit formed by joining a body side unit that constitutes a side portion of the automobile and a roof unit that constitutes a top portion of the automobile by assembling a roof interior material to a roof base material, and includes an engine, a powertrain, a suspension, and the like. An under-running unit that is assembled to the upper body unit to form a vehicle body, exterior components such as a bumper, a window shield, a door unit in which a door mirror and the like are attached to a door panel, and an exterior covering member for decoration. Characterized by assembling and Dosha. 4. The method of manufacturing an automobile according to claim 1, wherein the joining is performed by welding. 5. The method of manufacturing an automobile according to claim 1, wherein the joining is performed by adhesion. 6. The method for manufacturing an automobile according to claim 1, wherein the joining is performed with a rivet. 7. The method of manufacturing an automobile according to claim 1, wherein the joining is performed by a bolt. 8. The automobile manufacturing apparatus according to claim 2, wherein the joining is performed by welding. 9. The automobile manufacturing apparatus according to claim 2, wherein the joining is performed by adhesion. 10. The automobile manufacturing apparatus according to claim 2, wherein the joining is performed by rivets. 11. The automobile manufacturing apparatus according to claim 2, wherein the joining is performed by bolts. 12. The automobile according to claim 3, wherein An automobile characterized in that the joining is performed by welding. 13. The vehicle according to claim 3, The automobile is characterized in that the joining is performed by adhesion. 14. The automobile according to claim 3, wherein: The automobile is characterized in that the joining is performed by rivets. 15. The automobile according to claim 3, wherein The automobile is characterized in that the joining is performed with bolts. 16. The method of manufacturing an automobile according to claim 1, or 4 to 7, wherein the molding of the floor-constituting base material is extrusion. 17. The automobile manufacturing apparatus according to claim 2, or 8 to 11, wherein the molding of the floor-constituting base material is extrusion. 18. The automobile according to claim 3, or 12 to 15, wherein the floor constituent base material is molded by extrusion. 19. The automobile according to claim 3, or 12 to 15, or 18, wherein one of the floor-constituting base members is fitted with a female fitting portion, and the other is fitted with the female fitting portion. The vehicle is characterized in that a fitting male portion is provided, a positioning convex portion is provided on one side of the fitting male and female portion, and a positioning concave portion that engages with the positioning convex portion is provided on the other side. 20. The automobile according to claim 19, wherein the positioning uneven portion is provided on a back wall of the fitting female portion and a tip wall of the fitting male portion to prevent rotation between the fitting female and male portions. Cars characterized by carrying out. 21. The automobile according to claim 20, wherein projections of engaging clip projections are provided on opposite inner surfaces of the opening edge of the fitting female portion, and both outer surfaces of the fitting male portion are provided. A clip concave portion that engages with the clip convex portion is provided, and a contact surface that is in contact with both inner surfaces of the female fitting portion is provided on both outer surfaces of the male fitting portion on the tip side of the clip concave portion. A car characterized by. 22. The automobile according to claim 21, wherein the clip concave portion and the inner surface of the opening edge portion of the fitting female portion on the vehicle interior side are adhered to each other, and the fitting female portion is outside the vehicle compartment. An automobile characterized in that an opening edge portion and an outer surface of a base portion of the fitting male portion are welded to each other. 23. The automobile according to claim 19, wherein the floor-constituting base material includes a front floor and a dash lower of an engine compartment skeleton portion, and the fitting female portion is on a rear side of the vehicle body with respect to the dash lower portion. The vehicle is characterized in that it is formed of upper and lower two-stage flanges extending to the front, and the fitting male portion is formed at a front end of the front floor and fits between the flanges. 24. The automobile according to claim 23, wherein the concave portion is a groove-shaped portion formed in a vehicle width direction, and the convex portion is a claw-shaped portion that engages with the groove-shaped portion. A car characterized by that. 25. The automobile according to claim 23, wherein an upper flange of the fitting female portion is thinner than a lower flange of the same. 26. The automobile according to claim 23, wherein a rear end of the lower flange of the fitting female portion is protruded rearward of the vehicle body than a rear end of the upper flange. An automobile is characterized in that an upper front end of the fitting male portion is made to project forward of the vehicle body so as to correspond to the flange rather than a lower front end thereof. 27. The automobile according to claim 3, wherein between the floor unit and the body side unit,
A motor vehicle characterized in that a lower positioning means for positioning the both is provided, and an upper positioning means for positioning the both is provided between the body side unit and the roof unit. 28. The automobile according to claim 27, wherein the upper and lower positioning means are constituted by pins and locate holes. 29. The automobile according to claim 28, wherein the pin and the locate hole of the lower positioning means are arranged with their axes in the vehicle width direction, and the pin and the locate hole of the upper positioning means are An automobile characterized in that it is arranged with its axis vertically oriented so as to be orthogonal to the axes of the pins and locate holes of the lower positioning means. 30. The automobile according to claim 27, wherein the lower positioning means is arranged at least on the lower end side of the center pillar, and the upper positioning means is at least on the upper end side of the center pillar. An automobile characterized by being arranged on the middle side of the front pillar. 31. The automobile according to claim 3, wherein the joining is one-way welding of a seam located outside the passenger compartment. 32. The automobile according to claim 3, wherein the joining of the floor unit and the body side unit is adhesion of a seam inside the vehicle interior and welding of a seam outside the same. A car that does. 33. The automobile according to claim 3, wherein the outer surface covering member is molded of resin and is joined to the vehicle body side with a clip portion, and the outer surface covering member and the vehicle are provided in the vicinity of the clip portion. An automobile characterized in that a seal portion is provided between the outer surface of the main body.