JP5293528B2 - Roof reinforcement structure for high roof vehicles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof reinforcing structure of a high roof vehicle, which efficiently enhances the bonding strength between a roof side rail member and the terminal of a roof reinforcing member. <P>SOLUTION: The roof reinforcing member 40 includes: the main constituent 41 fixed to the in-vehicle side surface of a roof panel 20; and a terminal constituent 45 connected to both ends of the main constituent with a connection member 50. The terminal constituent 45 includes a columnar section formed of a pipe material, and connected to the roof side rail member 30 and extended vertically; a corner section bent into a curved shape from the upper end of the columnar section toward the center in the vehicle width direction; and a connection terminal extended from the front end of the corner section. The connection member 50 is formed to cover the end of the main constituent 41 and the connection end of the terminal constituent 45. In the space between the connection member 50, and the end of the main constituent 41 and the connection end of the terminal constituent 45, a foam filler for bonding these individual members is disposed. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a roof reinforcing structure for a high roof vehicle.

Conventionally, high roof vehicles (large buses, small buses, microbuses, etc.) have a structure as shown in FIG.
In this case, both end portions of a roof side rail member 330 connected to an upper end portion of a pillar 310 of a high roof vehicle and a roof rain hose member 340 having a hat-shaped cross section that is spot-welded along an inner side surface of the roof panel 320. 345 are connected by a bracket 370.
The bracket 370 includes both front and rear attachment portions 371 that are spot-welded to the upper surface of the roof side rail member 330, and a pocket portion 372 that is formed between the two attachment portions 371 and into which the end portion 345 of the roof rain hose member 340 is fitted. And.
Then, after the end portion 345 of the roof rain hose member 340 is fitted into the pocket portion 372 of the bracket 370, the end portion 345 of the roof rain hose member 340 and the bracket 370 are fixed by bolts or welding, thereby the roof portion. Is to be reinforced.
For example, Japanese Patent Application Laid-Open No. H10-133707 discloses a frame in which a foam filler is filled in a frame of an automobile and the frame is reinforced.

Japanese Patent No. 3525890

By the way, in the roof reinforcement structure of the conventional high roof vehicle shown in FIG. 17, the roof rain hose member 340 is formed in a cross-sectional hat shape, and both flange portions 344 are disposed in contact with the inner side surface of the roof panel 320. Thus, spot welding can be easily performed on the roof panel 320.
However, it is difficult to secure the coupling strength between the roof side rail member 330 and the end portion 345 of the roof rain hose member 340 in the bracket 370.
For this reason, when the vehicle rolls over (rolls over) or the like, stress concentrates on the joint portion (bracket 370) between the roof side rail member 330 and the end portion 345 of the roof rain hose member 340, and the portion is damaged. There is a fear.

  In view of the above problems, an object of the present invention is to provide a roof reinforcing structure for a high roof vehicle that can efficiently increase the coupling strength between a roof side rail member and a terminal portion of a roof rain hose member.

In order to solve the above-mentioned problems, a roof reinforcing structure for a high roof vehicle according to claim 1 of the present invention is arranged along a roof side rail member connected to an upper end portion of a pillar of the high roof vehicle and an inner side surface of the roof panel. A roof reinforcement structure for a high roof vehicle that reinforces the roof portion by connecting both end portions of the installed roof rain hose member,
The roof rain hose member has a main structure that extends in the vehicle width direction and is fixed to an inner surface of the roof panel, and a terminal structure that is connected to both ends of the main structure by connecting members,
The terminal structure is formed of a pipe material, and is connected to the roof side rail member and extends in a vertical direction, and is bent in a curved shape from the upper end of the pillar portion toward the center in the vehicle width direction. And a connecting end extending from the tip of the corner,
The connecting member is formed so as to cover an end of the main component and a connection end of the terminal component,
The space between the connecting member and the end of the main component and the connection end of the terminal component is provided with a foam filler that adheres these members. .

According to the said structure, a roof rain hose member is comprised by the main structure and the terminal structure connected by the connection member to the both ends of this main structure, and a terminal structure is formed with a pipe material, and roof side By connecting to the rail member, the coupling strength between the roof side rail member and the roof rain hose member can be efficiently increased. For this reason, it becomes possible to ensure the rollover strength of the vehicle easily.
Further, each of the above-mentioned members is provided by foam-filling a foaming filler for adhering these members in the space between the connecting member and the end of the main component and the connection end of the terminal component. Can be easily bonded and connected.

The roof reinforcement structure for a high roof vehicle according to claim 2 is the roof reinforcement structure for a high roof vehicle according to claim 1,
The foam filler is an unfoamed filler made of a foamable resin material disposed between the connecting member and the end of the main component and the connection end of the terminal component in the sheet metal assembly process. It is formed by being foamed by the heat of.

  According to the above configuration, the unfoamed filler made of the foamable resin material is foamed by the heat of the baking coating process, and the space between the connecting member and the end of the main component and the connection end of the terminal component The foam filler is formed by being foam-filled in the part, and at the same time, the foam-filled material is used to bond and connect the connecting member and the end of the main component and the connection end of the terminal component. Can do.

A roof reinforcement structure for a high roof vehicle according to claim 3 is the roof reinforcement structure for a high roof vehicle according to claim 1 or 2,
The lower part of the column part of the terminal structure is inserted into and fixed to the inside of the roof side rail member and the upper part of the pillar.

  According to the said structure, the lower part of the column part of a terminal structure is inserted and fixed to the inside of a roof side rail member, and the upper part of a pillar, and the three of a roof side rail member, a roof rain hose member, and a pillar. Therefore, the rollover strength of the vehicle can be improved satisfactorily.

The roof reinforcement structure for a high roof vehicle according to claim 4 is the roof reinforcement structure for a high roof vehicle according to claim 3,
In the space between the lower part of the column part of the terminal structure and the inside of the roof side rail member and the upper part of the pillar, a foaming filler for adhering these members is provided.

  According to the said structure, the foaming filler which adhere | attaches each of these members is foam-filled and arrange | positioned in the space part between the lower part of the column part of a terminal structure, and the inside of a roof side rail member, and the upper part of a pillar. Thus, the column portion of the terminal structure, the roof side rail member, and the pillar can be easily connected, and the rollover strength of the vehicle can be efficiently increased.

It is a perspective view which simplifies and shows the skeleton frame of the high roof vehicle which employ | adopted the roof reinforcement structure which concerns on Example 1 of this invention. It is a perspective view which similarly shows the assembly | attachment state of the main structural body of a roof rain hose member, a terminal structural body, a roof side rail member, and a pillar. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2, showing a state in which the main component and the terminal component of the roof rain hose member are connected to each other by a connecting member via a foam filler. It is a cross-sectional view based on the IV-IV line of FIG. It is a longitudinal cross-sectional view similarly based on the VV line | wire of FIG. It is a perspective view which shows the isolation | separation state before connecting with the main structure body and terminal structure body of a roof rain hose member similarly. It is a cross-sectional view based on the VII-VII line of FIG. It is a cross-sectional view based on the VIII-VIII line of FIG. It is a perspective view which similarly shows Embodiment 1 of the unfoamed filler. It is a perspective view which similarly shows Embodiment 2 of the filler of an unfoamed state. It is a perspective view which similarly shows Embodiment 3 of the unfoamed filler. It is a perspective view which similarly shows Embodiment 4 of the unfoamed filler. It is a perspective view which shows the roof reinforcement structure of the high roof vehicle which concerns on Example 2 of this invention. It is a perspective view which similarly shows the assembly | attachment state of the terminal structure body of a roof rain hose member, a roof side rail member, and a pillar. It is a cross-sectional view based on the XV-XV line of FIG. It is a cross-sectional view based on the XVI-XVI line of FIG. It is a perspective view which shows the roof reinforcement structure of the conventional high roof vehicle.

  The best mode for carrying out the present invention will be described in accordance with an embodiment.

A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, in order to form both side frame portions of a skeleton frame of a high roof vehicle (large bus, small bus, microbus, etc.), a predetermined interval is provided in the front-rear direction of both left and right side portions of the vehicle floor. A plurality of pillars 10 are provided upright apart from each other. The left and right roof side rail members 30 are disposed across the upper ends of the left and right pillars 10.
On the other hand, a plurality of roof rain hose members 40 are disposed on the inner surface of the roof panel 20 at a predetermined interval in the front-rear direction corresponding to the positions where the plurality of pillars 10 are disposed.
Then, both end portions of each roof rain hose member 40 are connected to the left and right roof side rail members 30 to reinforce the roof portion of the high roof vehicle.

In addition, the pillar 10 is formed in a hollow closed cross section by spot welding the pillar inner panel 11 and the pillar outer panel 12 at each flange portion with the pillar rain hose panel interposed therebetween.
The roof side rail member 30 is formed in a hollow closed cross section by spot welding a rail inner panel 31 and a rail outer panel 33 that are continuous with the upper end portions of the pillar inner panel 11 and the pillar outer panel 12 at the respective flanges. The

As shown in FIGS. 1 and 2, the roof rain hose member 40 includes a main component 41 and a terminal component 45.
As shown in FIGS. 2 and 4, the main structural body 41 includes a bottom 42 extending in the vehicle width direction, front and rear side walls 43 rising from the front and rear edges of the bottom 42, and upper edges of the side walls 43. It has both flange portions 44 formed in a protruding shape in the front-rear direction and is formed in a cross-sectional hat shape. The main component 41 is fixed by spot welding along the inner surface of the roof panel 20 at both flange portions 44.

As shown in FIGS. 2 and 3, the terminal structure 45 is formed of a pipe material (in this embodiment, a square pipe material), and is connected to the roof side rail member 30 and extends in the vertical direction. And a corner portion 48 bent in a curved shape from the upper end of the column portion 46 toward the vehicle width direction center side, and a connection end portion 49 extending from the tip of the corner portion 48.
Further, it is desirable that the lower end portion of the column portion 46 of the terminal structure 45 is inserted and fixed over the inside of the roof side rail member 30 and the upper portion of the pillar 10.
And the terminal structure 45 is connected with the connection member 50 and the foaming filler 61 at the both ends of the main structure 41.

  The connecting member 50 has a cross-sectional hat shape that covers the bottom 42 and both side walls 43 at the end of the main component 41 and the bottom and both side walls of the connection end 49 of the terminal component 45 with a set gap therebetween. Is formed. In the space between the connecting member 50 and the end of the main component 41 and the connection end 49 of the terminal component 45, a foam filler 61 is formed in the gap to be foam-filled to adhere these members. It is arranged.

In the first embodiment, the foaming filler 61 is foamed by heat (for example, external heating at 120 ° C. to 180 ° C.) during baking coating of the unfoamed filler 60 made of a foamable resin material rich in metal adhesion. It is formed by being expanded.
That is, in the sheet metal assembly process, as shown in FIGS. 6 to 8, both flange portions 44 of the main structural body 41 of the roof rain hose member 40 are spot-welded along the vehicle width direction on the inner side surface of the roof panel 20. Fixed.
On the other hand, the column part 46 of the terminal structure 45 of the roof rain hose member 40 is inserted through the inside of the roof side rail member 30 and the upper end of the pillar 10 and fixed by appropriate fixing means (for example, bolts, welding, adhesion, etc.). Connected.
The connection member 50 is fixed to the connection end portion 49 of the terminal structure 45 by a clip 70 made of a heat-resistant resin, with an unfoamed filler 60 made of a foamable resin material rich in metal adhesion interposed therebetween. Worn.

Thereafter, the flange portion 53 of the connecting member 50 is connected to the flange of the end of the main component 41 in a state where the end of the main component 41 and the connection end 49 of the terminal component 45 are abutted with a slight gap. It is spot-welded to the inner surface of the roof panel 20 with the portion 44 interposed therebetween. Further, in the flange portion 53 of the connecting member 50, the flange portion 53 of the connecting member 50 is directly spot welded to the inner side surface of the roof panel 20 and fixed at a portion corresponding to the connection end portion 49 of the terminal structure 45. The
Further, the necessary parts of the roof panel 20 and the roof side rail member 30 are joined by spot welding or the like, and the sheet metal assembling process of the vehicle body is completed.
As shown in FIG. 6, the flange portion 53 of the connecting member 50 is formed in a stepped shape so that the portion corresponding to the flange portion 44 of the main component 41 corresponds to the plate thickness of the flange portion 44.

Thereafter, the vehicle body is baked and painted.
As shown in FIGS. 6 to 8, the unfoamed filler 60 disposed in the space between the connecting member 50 and the end of the main component 41 and the connection end 49 of the terminal component 45 is: The foaming expansion is performed by heat (for example, external heating at 120 ° C. to 180 ° C.) in the baking coating process. As shown in FIGS. 3 to 5, the unfoamed filler 60 becomes the foam filler 61, and the connection member 50, the end of the main component 41, and the connection end 49 of the terminal component 45 By being foam-filled in the space between the members, the members of the connecting member 50 and the end of the main component 41 and the connection end 49 of the terminal component 45 are bonded and connected.

The roof reinforcing structure of the high roof vehicle according to the first embodiment is configured as described above.
Therefore, the roof rain hose member 40 is constituted by a main component 41 and a terminal component 45 connected to both ends of the main component 41 by the connecting member 50, and the terminal component 45 is formed by a pipe material. By connecting to the roof side rail member 30, the coupling strength between the roof side rail member 30 and the roof rain hose member 40 can be efficiently increased. For this reason, it becomes possible to ensure the rollover strength of the vehicle easily.
Further, a foam filler 61 rich in metal adhesion is foam-filled in the space between the end of the main component 41 of the roof rain hose member 40 and the connection end 49 of the terminal component 45 and the connecting member 50. Thus, these members 41, 45, 50 can be bonded and easily connected.

  Further, in the first embodiment, the lower end portion of the column portion 46 of the terminal structure 45 of the roof rain hose member 40 is inserted and fixed over the inside of the roof side rail member 30 and the upper portion of the pillar 10, so that the roof Since the three members of the side rail member 30, the roof rain hose member 40, and the pillar 10 can be connected, the rollover strength of the vehicle can be improved satisfactorily.

As an unfoamed filler for forming the foam filler 61, for example, a filler having a shape as shown in FIGS.
That is, as shown in FIG. 9, a plate-like material 160 formed in a flat plate shape by a foamable resin material rich in metal adhesion is a bottom plate portion 161 having a length corresponding to the bottom portion 51 of the connecting member 50, and the bottom plate A non-foamed filler 160 constituted by a rectangular tube portion 162 folded with a fold so as to cover the periphery of the connection end portion 49 of the terminal structure 45 from one side edge of the portion 161 can be employed. .
In this case, when the connection end portion 49 of the terminal structure 45 of the roof rain hose member 40 is fitted into the connecting member 50, the non-foamed filler 160 is assembled to the connection end portion 49 of the terminal structure 45 to provide heat resistance. Fasten with clips.

As shown in FIG. 10, a long extrudate formed by forming a foamable resin material rich in metal adhesion into a long rectangular tube by extrusion molding is used to connect the length of the connecting member 50 and the connection end of the terminal component 45. A cylindrical material 260a cut to a length including the length of the portion 49 is cut into a Z-shaped side shape at the center of the length, and two unfoamed fillers 260 are taken. can do.
Even in this case, when the connection end portion 49 of the terminal structure 45 is fitted into the connecting member 50, the non-foamed filler 260 is assembled to the connection end portion 49 of the terminal structure 45. Also, if necessary, it is fastened with a heat-resistant clip.

As shown in FIG. 11, a long extrudate formed by forming a foamable resin material rich in metal adhesion into a long rectangular tube by extrusion molding is used to connect the length of the connecting member 50 and the connection end of the terminal component 45. It is possible to employ a cylindrical material 360a cut to a length including the length of the portion 49 and cut in an inclined shape at the center of the length to take two unfoamed fillers 360. it can.
Also in this case, when the connecting end portion 49 of the terminal structure 45 is fitted into the connecting member 50, the non-foamed filler 360 is assembled to the connecting end portion 49 of the terminal structure 45. Also, if necessary, it is fastened with a heat-resistant clip.

As shown in FIG. 12, when the terminal structure 445 of the roof rain hose member is formed of a round pipe material, a long resin-like foaming resin material formed into a long cylindrical shape by extrusion molding is used. A tubular material 460a obtained by cutting the extruded product into a length obtained by adding the length of the connecting member 50 and the length of the connection end 449 of the terminal structure 445 is cut in an inclined shape at the center of the length. A material obtained by removing two unfoamed fillers 460 can be used.
Also in this case, when the connection end 449 of the terminal structure 445 is fitted into the connecting member 50, the unfoamed filler 460 is assembled to the connection end 449 of the terminal structure 445. Also, if necessary, it is fastened with a heat-resistant clip.

Next, a roof reinforcing structure for a high roof vehicle according to Embodiment 2 of the present invention will be described with reference to FIGS.
In the second embodiment, the lower part of the column part 46 of the terminal structure 45 of the roof rain hose member 40 and the upper part of the cylindrical part 15 and the pillar 10 inside the roof side rail member 30 through which the lower part is inserted. A foam filler 561 that is foam-filled in the gap and adheres these members is disposed in the space between them.

  Note that the upper end portion of the pillar rain hose panel 13 of the pillar 10 is extended to the inside of the roof side rail member 30 and spot welded to the rail inner panel 31. The cylindrical portion 15 is formed by the upper end portion of the pillar rain hose panel 13 and the rail inner panel 31.

In the second embodiment, the foam filler 561 is an unfoamed state made of a foamable resin material rich in metal adhesion in the same manner as the unfoamed filler 60 forming the foam filler 61 described in the first embodiment. These fillers are formed by foaming and expansion by heat during baking coating (for example, external heating at 120 ° C. to 180 ° C.).
Since the other configuration of the second embodiment is configured in the same manner as the first embodiment, the same components are denoted by the same reference numerals and the description thereof is omitted.

The roof reinforcing structure of the high roof vehicle according to the second embodiment is configured as described above.
Therefore, the terminal structure is formed by foam-filling the space between the lower part of the column part 46 of the terminal structure 45 of the roof rain hose member 40 and the upper part of the pillar 10 with the foam filler 561 for bonding these members. The column portion 46 of the body 45 and the pillar 10 can be easily connected, and the rollover strength of the vehicle can be efficiently increased.

  In addition, this invention is not limited to the said Example 1, In the range which does not deviate from the summary of this invention, it can also be implemented with a various form.

DESCRIPTION OF SYMBOLS 10 Pillar 20 Roof panel 30 Roof side rail member 40 Roof rain hose member 41 Main component body 45 Terminal component body 46 Column part 48 Corner part 49 Connection end part 50 Connection member 60 Unfoamed filler 61 Foam filler

Claims (4)

In a high roof vehicle that reinforces a roof portion by connecting a roof side rail member connected to an upper end portion of a pillar of the high roof vehicle and both end portions of a roof rain reinforcement arranged along an inner surface of the roof panel. A roof reinforcement structure,
The roof rain reinforcement has a main structure that extends in the vehicle width direction and is fixed to the inner surface of the roof panel, and a terminal structure that is connected to both ends of the main structure by connecting members,
The terminal structure is formed of a pipe material, and is connected to the roof side rail member and extends in a vertical direction, and is bent in a curved shape from the upper end of the pillar portion toward the center in the vehicle width direction. And a connecting end extending from the tip of the corner,
The connecting member is formed so as to cover an end of the main component and a connection end of the terminal component,
The space between the connecting member and the end of the main component and the connection end of the terminal component is provided with a foam filler that adheres these members. Roof reinforcement structure for high roof vehicles. The roof reinforcing structure for a high roof vehicle according to claim 1,
The foam filler is an unfoamed filler made of a foamable resin material disposed between the connecting member and the end of the main component and the connection end of the terminal component in the sheet metal assembly process. A roof reinforcement structure for a high roof vehicle, wherein the roof reinforcement structure is formed by being foamed by the heat of the vehicle. A roof reinforcing structure for a high roof vehicle according to claim 1 or 2,
A roof reinforcing structure for a high roof vehicle, wherein a lower part of a column part of the terminal structure is inserted and fixed inside the roof side rail member and the upper part of the pillar. A roof reinforcing structure for a high roof vehicle according to claim 3,
A high roof having a foam filler for adhering these members disposed in the space between the lower part of the column of the terminal structure and the inside of the roof side rail member and the upper part of the pillar. Vehicle roof reinforcement structure.

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