JP3966582B2 - Assembly method for honeycomb plate on vehicle body floor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for assembling a honeycomb plate for a vehicle body floor in which a honeycomb plate for increasing the rigidity of the vehicle body floor is assembled to a recess formed in the vehicle body floor.
[0002]
[Prior art]
Such a method for assembling the honeycomb plate on the vehicle body floor is known from Japanese Utility Model Laid-Open No. 4-19379. This is a honeycomb sheet fitted into a recess formed in the vehicle floor via a melt sheet (registered trademark in the name of Nippon Special Paint Co., Ltd.), that is, an asphalt sheet that can exhibit a sealing and adhesive fixing function after being heated and melted. Then, the asphalt sheet is heated and melted to fix the honeycomb plate in the recess. By fixing the honeycomb plate using the asphalt sheet in this way, it is possible to obtain the rigidity improvement effect by the honeycomb plate and the vibration damping effect by the asphalt sheet. At this time, the gap between the periphery of the honeycomb plate and the vehicle body floor is sealed with the sealant.
[0003]
[Problems to be solved by the invention]
However, the use of a sealant requires not only a process for applying the sealant, a process for extending the sealant, and a process for drying the sealant, which increases the man-hours and costs, but also increases the production line of the vehicle. There is a problem of becoming longer by the minute.
[0004]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to enable the assembly work of the honeycomb plate including the sealing process to be performed with less man-hours and costs.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a honeycomb plate is accommodated and fixed in a recess formed in a vehicle body floor, and a contact portion between the periphery of the honeycomb plate and the recess periphery of the vehicle body floor is provided. In the honeycomb plate assembling method of the car body floor to be sealed and fixed, the center portion of the asphalt-based sheet material having a predetermined shape made of a material capable of exhibiting a sealing and adhesive fixing function after being heated and melted is cut into an annular shape, The portion is a first sheet and the outer portion is a second sheet, the honeycomb plate is set through the first sheet in the recess of the vehicle body floor, and then the second sheet is covered so as to cover the contact portion After that, by heating the body floor, the first and second sheets are heated and melted so that the lower surface of the honeycomb plate becomes the bottom surface of the recess. The contact portion is sealed and bonded and fixed, and when the honeycomb plate is set in the recess, the periphery of the honeycomb plate is locked to the recess periphery by a locking portion provided on the vehicle body floor, It is fixed.
[0006]
According to the above configuration, the asphalt-based sheet material having the predetermined shape (the second shape) made of a material capable of exhibiting a sealing and adhesive fixing function through the heat-melted state at the contact portion between the peripheral edge of the honeycomb plate and the concave peripheral edge of the vehicle body floor. Since the sheet is sealed and fixed, the process of applying the sealant and the process of extending the sealant become unnecessary, thereby reducing the man-hours and costs. In addition, the center portion of the asphalt-based sheet material having the predetermined shape is cut into an annular shape, and the inner portion thereof is used as a first sheet for adhesively fixing the lower surface of the honeycomb plate to the bottom surface of the concave portion, and the outer portion thereof is the abutting portion. Since it is used as the second sheet for sealing and fixing the part, the first and second sheets can be easily manufactured while minimizing the loss of the asphalt sheet material.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.
[0008]
1 to 6 show an embodiment of the present invention. FIG. 1 is a perspective view of a vehicle body floor on which a honeycomb plate is mounted, FIG. 2 is an enlarged view in the two directions of FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along the line 3-3, FIG. 4 and FIG.
[0009]
As shown in FIG. 1, an automobile body floor F formed by pressing a steel plate has a center tunnel 1 extending in the front-rear direction at the center and left and right floor panels 2, 2 connected to the left and right sides of the center tunnel 1. And left and right side sills 3, 3 connected to the left and right sides of the floor panels 2, 2, and a rear panel 4 that rises rearward and upward from the rear ends of the floor panels 2, 2. On the upper surfaces of the left and right floor panels 2 and 2, a pair of left and right front cross members 5 and 5 and a pair of left and right rear cross members 6 and 6 that connect the center tunnel 1 and the left and right side sills 3 and 3 are provided. . Left and right front honeycomb plates 7 and 7 are provided on the upper surface of the floor panels 2 and 2 in front of the front cross members 5 and 5, and left and right on the upper surfaces of the floor panels 2 and 2 behind the rear cross members 6 and 6. Rear honeycomb plates 8 and 8 are provided.
[0010]
Since the structures and assembling methods of the left and right front honeycomb plates 7 and 7 and the left and right rear honeycomb plates 8 and 8 are substantially the same, the left front honeycomb plate 7 will be described as a representative thereof.
[0011]
As shown in FIGS. 2 to 5, the floor panel 2 of the vehicle body floor F is formed with a recess 9 into which the front honeycomb plate 7 is fitted. A front edge and left and right side edges of the peripheral edge 10 of the recess 9 are formed on the floor panel 2, and a rear edge is formed on the front cross member 5. The front honeycomb plate 7 fitted into the recess 9 is composed of an aluminum or paper honeycomb core 11 and a substrate 12 integrally joined to the upper surface of the honeycomb core 11. A joining portion 12 a that protrudes in a flange shape from the outer periphery of the honeycomb core 11 is formed on the periphery of the substrate 12, and when the front honeycomb plate 7 is fitted into the recess 9, the joining portion 12 a becomes the periphery 10 of the recess 9. It is fixed in a state where it overlaps with.
[0012]
On the upper surface of the front cross member 5 constituting the rear edge of the peripheral edge portion 10, a pair of left and right engaging portions 5a, 5a are formed by cutting and raising. One end of a plate-like locking member 13 is fixed to the upper surface of the floor panel 2 constituting the front edge of the peripheral edge portion 10 by welding. The left and right rear ends of the substrate 12 of the front honeycomb plate 7 engage with the engaging portions 5a and 5a, respectively, and the front end of the substrate 12 is fixed by bending the other end of the engaging member 13.
[0013]
Figure 6 is a front honeycomb plate 7 Merushito material cut slightly larger shape than the substrate 12 (the "Merushito" is a registered trademark of Nihontokushutoryo Corporation name) show a 14, the sheet over preparative material 14 , an asphalt-based sheet material capable of exhibiting a sealing and adhesive fixing function through the heating molten state, it is cut by the cutting line 14a, the inner portion thereof is used as the first sheet or fixing sheet over preparative 15, the outer portion thereof is used as the second sheet or the sealing sheet over preparative 16. Thus, as compared with the case of separately cut fixing sheet over preparative 15 and the sealing sheet over preparative 16 can minimize the loss of material, yet it is possible to reduce the number of steps required for cutting.
[0014]
Next, the process of assembling the front honeycomb plate 7 to the vehicle body floor F will be described.
[0015]
The assembly of the front honeycomb plate 7 is performed when the automobile body finishes the electrodeposition coating. As shown in FIGS. 4 and 5, it sets the fixing sheet over preparative 15 on the bottom surface of the recessed portion 9 of the vehicle floor F, fitting the front honeycomb plate 7 from above. At this time, the left and right rear ends of the substrate 12 of the front honeycomb plate 7 engage with the engaging portions 5a and 5a of the front cross member 5, and the front end is fixed by the bent engaging member 13. Then set the sealing sheet over preparative 16 so as to cover the boundary between the peripheral edge 10 of the substrate 12 and the recess 9 of the front honeycomb plate 7, and the state of FIG.
[0016]
Heating putting automobile body in this state in a furnace, at the same time the lower surface of the front honeycomb plate 7 is bonded and fixed to the bottom surface of the recess 9, the sealing sheet over preparative 16 melt fixing sheet over preparative 15 is melted Then, the periphery of the substrate 12 of the front honeycomb plate 7 is sealed and fixed (see FIG. 2). Thus, since the heating and melting of the heat-melting and sealing sheet over preparative 16 of the fixing sheet over preparative 15 is completed at the same time, can contribute to the reduction of man-hours and working time. Since using seal easily set to a sealing sheet over preparative 16 of the periphery of the substrate 12, it is possible to significantly reduce the number of steps and work time compared to sealing method of extending by applying a conventional sealant, Moreover, skill is not required for the work.
[0017]
As mentioned above, although the Example of this invention was explained in full detail, this invention can perform a various design change in the range which does not deviate from the summary.
[0018]
For example, in the embodiment, the forming the sheet material 14 the sealing sheet over preparative 16 isolate the cutting line 14a. However, be separately formed a sealing sheet over preparative 16 and the fixing sheet over preparative 15 it can. The combination of a pair of sealing sheet over preparative 16 cut in an L-shape as shown in FIG. 7 (A), they can save material compared to forming integrally. Also it is possible to enhance the sealing effect and the damping effect if wider forming a sealing sheet over preparative 16 as shown in Figure 7 (B). Using are bent along further a strip of sealing sheet over preparative 16 cut to a predetermined length, as shown in FIG. 7 (C) to the periphery of the substrate 12, the manufacturing cost of the sealing sheet over preparative 16 Can be reduced.
[0019]
【The invention's effect】
As described above, according to the first aspect of the present invention, the contact portion between the peripheral edge of the honeycomb plate fitted in the concave portion of the vehicle body floor and the peripheral edge of the concave portion of the vehicle body floor is sealed and bonded and fixed through a heat-melted state. Since it is sealed and bonded and fixed with asphalt sheet material (second sheet) of a predetermined shape made of a material that can perform its functions, the steps of applying a sealing agent and extending the sealing agent are not required as in the past. And cost is reduced. In addition, the center portion of the asphalt-based sheet material having the predetermined shape is cut into an annular shape, and the inner portion thereof is used as a first sheet for adhesively fixing the lower surface of the honeycomb plate to the bottom surface of the concave portion, and the outer portion thereof is the abutting portion. Since it uses as a 2nd sheet | seat for sealing and fixing a part, a 1st, 2nd sheet | seat can be manufactured easily, suppressing the loss of an asphalt type | system | group sheet material to the minimum. Further, when the honeycomb plate is set in the recess, the periphery of the honeycomb plate is locked and fixed to the periphery of the recess by a locking portion provided on the vehicle body floor.
[Brief description of the drawings]
1 is a perspective view of a vehicle body floor with a honeycomb plate attached. FIG. 2 is a cross-sectional view taken along the direction of arrows in FIG. 1. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 5] description of Figure [code showing another embodiment of FIG. 7 sealing sheet over preparative shown Figure 6 Merushito material showing the assembly process]
F Car body floor 5a Locking part 7 Front honeycomb plate (honeycomb plate)
9 Recess 13 Locking member 14 Mel sheet material ( asphalt-based sheet material)
15 fixing sheet over preparative (first sheet)
16 sealing sheet over preparative (second sheet)

Claims (1)

The honeycomb plate (7) is housed and fixed in the recess (9) formed on the vehicle body floor (F), and a contact portion between the periphery of the honeycomb plate (7) and the periphery of the recess (9) of the vehicle body floor (F) is formed. In the method for assembling the honeycomb plate of the vehicle body floor to be sealed and fixed,
A central portion of an asphalt-based sheet material (14) having a predetermined shape made of a material capable of exhibiting a sealing and adhesive fixing function after being heated and melted is cut into an annular shape, and an inner portion thereof is used as a first sheet (15). The outer part is the second sheet (16),
The honeycomb plate (7) is set through the first sheet (15) in the recess (9) of the vehicle body floor (F),
Next, the second sheet (16) is set so as to cover the contact portion,
Thereafter, by heating the vehicle body floor (F), the first and second sheets (15, 16) are heated and melted, and the lower surface of the honeycomb plate (7) is bonded and fixed to the bottom surface of the recess (9). Sealing and adhesively fixing the abutting part;
When the honeycomb plate (7) is set in the concave portion (9), the peripheral edge of the honeycomb plate (7) is moved to the concave portion (9) by the engaging portions (5a, 13) provided on the vehicle body floor (F). A method for assembling a honeycomb plate on a vehicle body floor, characterized by engaging and fixing to the periphery.

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