JP2022042588A - Instrument panel member structure of motor vehicle and assembly method of the same - Google Patents

Abstract

To achieve reduction of manufacturing costs, high rigidity, improvement of the quality, and reduction of the weight in an instrument panel member structure of a motor vehicle which is disposed within an instrument panel of a vehicle body front part in a vehicle width direction.SOLUTION: An instrument panel member structure of a motor vehicle is disposed within an instrument panel of a vehicle body front part in a vehicle width direction and has: a structure member 11 having a hollow part 15; a pipe member 12 which is inserted into the hollow part 15 of the structure member 11 in the vehicle width direction; and plate-like rib plates 13 which are attached to the hollow part 15 so that their plate surfaces 13b are arranged along a vehicle body fore and aft direction and in which the pipe member 12 is attached to the plate surfaces 13b in a fitting manner to support the structure member 11 on the pipe member 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to an instrument panel member structure of an automobile arranged in the instrument panel at the front of the vehicle body in the vehicle width direction.

Conventionally, instrument panel members are arranged along the vehicle width direction in the instrument panel at the front of the vehicle body. The instrument panel member, also known as a steering member, is a frame member for supporting an instrument panel, a steering device, and the like.

As an invention relating to an instrument panel member, for example, in Patent Document 1, a front portion having a simple structure capable of restraining an inward movement of a steering device in the vehicle width direction at the time of a front collision of a vehicle and restraining an occupant with an airbag. Inventions relating to vehicle body structures are described. The steering member 10 described in Patent Document 1 has a beam member 11 extending in the vehicle width direction. The beam member 11 is gradually contracted from the large-diameter pipe portion 11a arranged on the driver's seat side, the small-diameter pipe portion 11b arranged on the passenger seat side, and the large-diameter pipe portion 11a toward the small-diameter pipe portion 11b. It is composed of a tapered portion 11c having a diameter.

Japanese Unexamined Patent Publication No. 2015-101136

As described in Patent Document 1, the pipe member constituting the conventional instrument panel member (steering member) is composed of a large diameter portion, a small diameter portion, and a tapered portion, and in order to use such a pipe member. Needed to reduce the diameter of a part of one pipe member or to connect two pipe members having different diameters via a taper member.

These processes cause cost factors and quality deterioration factors of the reduced diameter portion. For example, when two different diameter pipe members are connected via a tapered member, the pipe member is not straightened due to the displacement of the connecting portion. Sometimes.

INDUSTRIAL APPLICABILITY The present invention solves the above-mentioned conventional problems, and reduces manufacturing cost, high rigidity, quality improvement, and light weight in an instrument panel member structure of an automobile arranged in the instrument panel at the front of the vehicle body in the vehicle width direction. It is possible to make it.

In order to solve the above problems, the instrument panel member structure of the automobile according to claim 1 of the present invention is an instrument panel member structure of the automobile arranged in the instrument panel at the front of the vehicle body in the vehicle width direction, and has a hollow portion. A structural member having a structure member, a pipe member inserted into the hollow portion of the structural member in the vehicle width direction, and a plate surface attached to the hollow portion along the front-rear direction of the vehicle body, and the pipe member fitted to the plate surface. It is characterized by having a plate-shaped rib plate that is attached together and supports the structural member to the pipe member.

Further, the instrument panel member structure of the automobile according to claim 2 of the present invention is characterized in that, in the invention of claim 1, the rib plate is a base end of a bracket attached to the instrument panel member.

Further, in the instrument panel member structure of the automobile according to claim 3 of the present invention, in the invention according to claim 1 or 2, the structural member is provided with an fitting hole for fitting the peripheral edge portion of the rib plate, and the peripheral edge portion is provided. And the peripheral edge of the fitting hole are fixed to each other.

Further, the method for assembling the instrument panel member structure of an automobile according to claim 4 of the present invention is a method for assembling the instrument panel member structure of an automobile arranged in the instrument panel at the front of the vehicle body in the vehicle width direction, and is a hollow portion. A plate-shaped rib plate fitted to the pipe member inserted into the structural member in the vehicle width direction is attached to the hollow portion of the structural member having the above, and then the pipe member is attached so that the plate surface is along the vehicle body front-rear direction. Is fitted to the plate surface of the rib plate, and the rib plate and the pipe member are attached.

Further, the method of assembling the instrument panel member structure of an automobile according to claim 5 of the present invention is a method of assembling the instrument panel member structure of an automobile arranged in the instrument panel at the front of the vehicle body in the vehicle width direction, and is a hollow portion. A plate-shaped rib plate is fitted and attached to a pipe member to be inserted in the vehicle width direction into the structural member having the above, and then the pipe member is inserted into the structural member. The rib plate and the structural member are attached to the rib plate.

The instrument panel member structure of an automobile according to claim 1 of the present invention is composed of a structural member having a hollow portion, a pipe member inserted into the structural member in the vehicle width direction, and a rib plate having a simple shape. , Structural members and rib plates can be easily manufactured by press-molding plate materials, and these three members can be easily assembled by inserting (fitting) and fixing. As a result, the manufacturing cost of the instrument panel member can be reduced. Further, since the plate-shaped rib plate is attached to the hollow portion so that the plate surface is along the front-rear direction of the vehicle body, the pipe member is fitted to the plate surface to support the structural member to the pipe member. The above three members can be assembled reliably and stably, and a high-rigidity and high-quality instrument panel member can be obtained.

Further, in the instrument panel member structure of the automobile according to claim 2 of the present invention, in addition to the effect of the invention according to claim 1, the base end of the bracket attached to the instrument panel member functions as a rib plate, and the bracket is ribbed. Since it is also used as a plate, the weight of the instrument panel member can be reduced.

Further, in the instrument panel member structure of the automobile according to claim 3 of the present invention, in addition to the effect of the invention according to claim 1 or 2, the structural member is provided with a fitting hole for fitting the peripheral portion of the rib plate, and the rib is provided. By fixing the peripheral edge of the plate to the peripheral edge of the fitting hole, the rib plate can be easily and surely attached to the structural member.

Further, the method for assembling the instrument panel member structure of an automobile according to claim 4 of the present invention is a plate-like structure that fits into a hollow portion of a structural member having a hollow portion with a pipe member inserted into the structural member in the vehicle width direction. After attaching the rib plate so that the plate surface is along the front-rear direction of the vehicle body, the pipe member is fitted to the plate surface of the rib plate and the pipe member and the rib plate are attached. Therefore, it can be easily assembled by simply inserting the pipe member into the structural member to which the rib plate is attached in advance and attaching the pipe member and the rib plate.

Further, in the method of assembling the instrument panel member structure of an automobile according to claim 5 of the present invention, a plate-shaped rib plate is attached to a pipe member inserted in a structural member having a hollow portion in the vehicle width direction, and the plate surface is in the vehicle body front-rear direction. After fitting and attaching the pipe member along the above, the pipe member is inserted into the structural member and the rib plate is attached to the structural member. Therefore, it can be easily assembled by simply inserting the pipe member to which the rib plate is attached in advance into the structural member and attaching the rib plate and the structural member.

As described above, the present invention enables reduction in manufacturing cost, high rigidity, quality improvement, and weight reduction in the instrument panel member structure of an automobile arranged in the instrument panel at the front of the vehicle body in the vehicle width direction. be.

It is a perspective view which shows the instrument panel member which concerns on Embodiment 1 of this invention. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. It is a perspective view which shows the instrument panel member which concerns on Embodiment 2 of this invention. FIG. 3 is a cross-sectional view taken along the line IV-IV of FIG. FIG. 3 is a cross-sectional view taken along the line VV of FIG. It is a perspective view of the structural member provided with the insertion hole. It is a side view of the instrument panel member which shows the assembling method of a structural member, a pipe member and a rib plate.

Next, the instrument panel member according to the embodiment of the present invention will be described with reference to FIGS. 1 to 7. The instrument panel member according to the present embodiment is arranged in the instrument panel at the front of the vehicle body in the vehicle width direction, and is a frame member for supporting the instrument panel, the steering device, and the like.

(Embodiment 1)
FIG. 1 is a perspective view showing an instrument panel member 10 according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. The instrument panel member 10 includes a metal structural member 11 having a hollow portion 15 and a metal rib plate 13 attached to the hollow portion 15 of the structural member 11 so that the plate surfaces 13b, 13b, 13b are along the front-rear direction of the vehicle body. , 13, 13 and a metal pipe member 12 inserted into the structural member 11 in the vehicle width direction. The structural member 11 is a member having a polygonal cross section, has an opening 11b that opens toward the rear of the vehicle body, and is formed by press-molding a plate material. Side brackets 14 and 14 fixed to the vehicle body (not shown) are attached to both ends of the instrument panel member 10 in the vehicle width direction.

The peripheral edges 13a of the three rib plates 13 have a shape that matches the inner wall surface 11a of the structural member 11, are arranged at intervals in the vehicle width direction, and the peripheral edges 13a are fixed to the structural member 11 by welding. It is installed. Further, an insertion hole 1 for fitting with the pipe member 12 is provided at substantially the center of the plate surfaces 13b, 13b, 13b. The rear end edges of the rib plates 13, 13 and 13 are formed up to the vicinity of the opening 11b of the structural member 11. Then, the pipe member 12 is inserted into the insertion holes 1 of the rib plates 13, 13, 13 and fitted into the plate surfaces 13b, 13b, 13b, and the peripheral edge portion of the insertion hole 1 and the pipe member 12 are fixed by welding. As a result, the structural member 11 is supported by the pipe member 12 via the rib plates 13, 13, 13.

A metal rib plate 16 is attached to the vicinity of the left end portion of the hollow portion 15 of the structural member 11 in the vehicle width direction so that the plate surface 16b is along the vehicle body front-rear direction. The end portion does not extend to the rib plate 16, which functions as a reinforcing member of the structural member 11. Further, a side bracket 14 is joined to the left end portion of the structural member 11 in the vehicle width direction. The number of rib plates 13 is not limited, but it is preferably at least two in order for the structural member 11 to be stably supported by the pipe member 12.

The instrument panel member structure of the automobile according to the first embodiment includes a structural member 11 having a hollow portion 15, rib plates 13, 13, 13 disposed in the hollow portion 15, structural members 11 and rib plates 13, 13, The structural member 11 and the rib plates 13, 13 and 13 are easily manufactured by press-molding the plate material, which is composed of three members having a simple shape including the pipe member 12 inserted into the vehicle width direction. At the same time, the assembly of these three members can be easily performed by inserting (fitting) and fixing. As a result, the manufacturing cost of the instrument panel member 10 can be reduced. Further, the plate-shaped rib plates 13, 13, 13 are attached to the hollow portion 15 so that the plate surfaces 13b, 13b, 13b are aligned in the front-rear direction of the vehicle body, and the pipe member 12 is fitted to the plate surfaces 13b, 13b, 13b. In addition, since the structural member 11 is supported by the pipe member 12, the three members can be assembled reliably and stably, and a high-rigidity and high-quality instrument panel member can be obtained.

The instrument member 10 according to the first embodiment is a combination of the structural member 11 arranged on the driver's seat side (left side in FIG. 1) and the pipe member 12 arranged on the passenger seat side (right side in FIG. 1). Although the pipe member 12 is inserted halfway in the vehicle width direction of the structural member 11, the positional relationship between the structural member 11 and the pipe member 12 can be variously changed. For example, the pipe member 12 may be arranged over the entire length between the left and right side brackets 14, 14 and the structural member 11 may be arranged in a part between the left and right side brackets 14, 14. On the contrary, the structural member 11 may be arranged over the entire length between the left and right side brackets 14 and 14, and the pipe member 12 may be arranged in a part between the left and right side brackets 14 and 14. Further, both the structural member 11 and the pipe member 12 may be arranged over the entire length between the left and right side brackets 14, 14.

(Embodiment 2)
FIG. 3 is a perspective view showing the instrument panel member 20 according to the second embodiment of the present invention. 4 and 5 are a sectional view taken along line IV-IV of FIG. 3 and a sectional view taken along line VV of FIG. 3 showing a bracket mounting structure of the instrument panel member 20. The instrument panel member 20 is composed of a structural member 21 having a hollow portion 25, a pipe member 22 inserted into the hollow portion 25 of the structural member 21 in the vehicle width direction, and a bracket 23. The structural member 21 is a member having a polygonal cross section having a hollow portion 25, has an opening portion 21b that opens toward the rear of the vehicle body, and is formed by press-molding a plate material. Side brackets 24, 24 fixed to a vehicle body (not shown) are attached to both ends of the instrument panel member 20 in the vehicle width direction.

In the second embodiment, the bracket 23 is a pair of steering brackets 23a, 23a and a center bracket 23b attached to the hollow portion 25 of the structural member 21. The steering brackets 23a and 23a are for supporting the steering shaft (not shown) of the driver's seat, and the center bracket 23b is a connecting member for connecting the tip (lower end) 23b1 to the vehicle body floor (not shown). Is. The instrument panel member 20 according to the second embodiment functions as a rib plate at the base ends of the steering brackets 23a and 23a and the center bracket 23b instead of the rib plate 13 in the first embodiment.

On the other hand (left side) of the steering bracket 23a, as shown in FIG. 4, a flange portion 27 is formed by bending the peripheral edge portion of the plate surface 26 toward the right side in the vehicle width direction. The flange surface of the flange portion 27 has a shape that matches the inner wall surface 21a of the structural member 21, and is fixed to the inner wall surface 21a by welding. On the other hand (right side), the flange portion 27 is also formed on the steering bracket 23a, and the flange portion 27 is formed by bending toward the left side in the vehicle width direction. The steering brackets 23a and 23a project to the rear of the vehicle body from the opening 21b of the structural member 21, and a mounting port 6 for attaching the steering shaft is provided on the protruding plate surface 26. Then, the pipe member 22 is inserted (fitted) into the insertion holes 2 of the steering brackets 23a and 23a, and the peripheral edge portion of the insertion hole 2 and the peripheral surface of the pipe member 22 are welded and fixed to each other, whereby the plate surface 26 is formed. The structural member 21 is supported by the pipe member 22 via the steering brackets 23a and 23a arranged so as to be along the front-rear direction of the vehicle body.

As shown in FIG. 5, the center bracket 23b is formed with a pair of flange portions 29, 29 by bending the peripheral edge portion in the longitudinal direction of the plate surface 28 toward the left side in the vehicle width direction. The flange portions 29, 29 on the base end side of the center bracket 23b have a shape that matches the facing surface of the inner wall surface 21a of the structural member 21 on the opening 21b side, and the plate surface 28 thereof is in the front-rear direction of the vehicle body. It is installed along. Further, a recess 3 that fits with the pipe member 22 is formed at the base end side end portion of the center bracket 23b. Then, the pipe member 22 is fitted into the recess 3 of the center bracket 23b, the peripheral edge of the recess 3 is welded to the peripheral surface of the pipe member 22, and the flange portions 29 and 29 on the proximal end side of the center bracket 23b are further structured. The inner wall surface 21a of the opening 21b of the member 21 is welded and fixed. As a result, the structural member 21 is supported by the pipe member 22 via the center bracket 23b. Further, the lower ends of the structural member 21 and the pipe member 22 are supported by the center bracket 23b attached to the vehicle body floor.

In the instrument panel member structure of the automobile according to the second embodiment, in addition to the effect of the instrument panel member structure of the automobile according to the first embodiment, the base end of the bracket 23 attached to the instrument panel member 20 functions as a rib plate, and the bracket 23 Since the rib plate is also used, the weight of the instrument panel member 20 can be reduced.

In the above embodiment, the structural member has a polygonal cross-section that opens toward the rear of the vehicle body, but the number of corners when the polygonal cross-section is used is not particularly limited. Further, it may be curved instead of polygonal in cross section.

Further, the structural member may have a closed cross-sectional shape having no openings 11b and 21b. However, if it does not have an opening, it is preferable to provide a fitting hole 4 for inserting the rib plate into the structural member. FIG. 6 is a perspective view in which the fitting hole 4 is provided in the structural member 31 having a closed cross-sectional shape having no opening. The structural member 31 is provided with a plurality of slit-shaped fitting holes 4 that lead from the outer surface to the hollow portion 35 and for inserting a part of the peripheral edge portion of the rib plate at intervals in the vehicle width direction. It should be noted that the structural member having the openings 11b and 21b as formed in the structural members 11 and 21 in the first and second embodiments is also provided with an fitting hole for inserting a part of the peripheral portion of the rib plate. be able to.

A structural member 31 is provided with an fitting hole 4 into which a part of the peripheral edge of the rib plate is inserted like the structural member 31, and a part of the peripheral edge of the rib plate and the peripheral edge of the fitting hole 4 are fixed by welding or the like. The rib plate can be easily and reliably attached to the rib plate.

Further, at the end of the structural member 31 in FIG. 6 in the longitudinal direction (vehicle width direction), an insertion port for inserting a pipe member to which the plate surface of the rib plate is previously attached along the vehicle body front-rear direction is inserted from the vehicle width direction. 36 is open. The rib plate attached to the pipe member in advance and the structural member 31 are assembled into the hollow portion 35 while shifting the pipe member toward the anti-fitting hole 4 so that the rib plate does not abut on the inner wall surface of the structural member 31. After inserting and making the rib plate correspond to the position of the fitting hole 4, the pipe member is brought close to the fitting hole 4 side and a part of the peripheral edge portion of the rib plate is fitted into the fitting hole 4 from the hollow portion 35 side. After that, the protruding portion of the rib plate from the fitting hole 4 is fixed to the peripheral portion of the fitting hole 4 of the structural member 31 by welding or the like.

FIG. 7 is a diagram showing a method of assembling a structural member, a pipe member, and a rib plate. Various assembly methods are possible depending on the presence or absence of an opening and the presence or absence of a fitting hole in the cross-sectional shape of the structural member.

The instrument panel member 10 shown in FIG. 7A has a structure of a peripheral portion of a rib plate 13 inserted into the structural member 11 from the opening 11b so that the plate surface is along the vehicle body front-rear direction in the structural member 11 having the opening 11b. After being fixed to the inner wall surface 11b of the member 11 by welding 5, the pipe member 12 is inserted (fitted) into the insertion hole 1 of the rib plate 13 from the vehicle width direction, and the insertion hole 1 of the rib plate 13 and the pipe member 12 are inserted. It is fixed by welding 5.

In the instrument panel member 10 shown in FIG. 7B, in the structural member 11 having the opening 11b, the rib plate 13 is inserted into the structural member 11 from the opening 11b so that the plate surface is along the front-rear direction of the vehicle body, and the rib plate is formed. The protruding portion 13c formed in a part of the peripheral portion of the 13 is fitted into the slit-shaped fitting hole 4 provided in the structural member 11 and projected to the outside of the structural member 11, and the protruding portion 13c and the fitting hole 4 of the structural member 11 are fitted. The peripheral portion is fixed by welding 5. After that, the pipe member 12 is inserted (fitted) into the insertion hole 1 of the rib rate 13 from the vehicle width direction, and the insertion hole 1 of the rib plate 13 and the pipe member 12 are fixed by welding 5.

Even when the steering brackets 23a and 23a and the center bracket 23b are used as rib plates, they can be assembled in the same manner as when the rib plates shown in FIGS. 7A and 7B are used.

The structural member 11, the pipe member 12, and the rib plate 13 shown in FIGS. 7A and 7B can be attached by the following assembly method. The assembly method can be selected depending on the presence / absence of the opening 11a of the structural member 11, the fitting hole 4, and the shape and size of the rib plate 13.

(Assembly method 1)
In the assembly method 1, the peripheral edge portion of the rib plate 13 is first attached to the hollow portion 15 of the structural member 11 by welding 5, and then the rib plate 13 is inserted into the hollow portion 15 of the structural member 11 from the vehicle width direction. The structural member 11 is piped through the rib plate 13 by inserting (fitting) into the insertion hole 1 of the rib plate 13 and fixing the peripheral edge portion of the insertion hole 1 of the rib plate 13 and the outer peripheral surface of the pipe member 12 by welding 5. It is supported by the member 12.

According to the assembly method 1, the pipe member 12 is inserted into the structural member 11 to which the rib plate 13 is previously attached to the structural member 11 by welding 5 and the rib rate 13, and the rib plate 13 and the pipe member 12 are fixed to each other. It can be easily assembled and the manufacturing cost of the instrument panel member 10 can be reduced. Further, the pipe member 12, the rib rate 13 and the structural member 11 can be assembled with high rigidity and stably, and the quality of the instrument panel member 10 can be improved.

(Assembly method 2)
In the assembly method 2, first, a pipe member 12 to which a plurality of rib plates 13 are fixed by welding at intervals in the vehicle width direction is inserted into the hollow portion 15 of the structural member 11 from the vehicle width direction or the opening 11b side. The peripheral portion of the rib plate 13 and the structural member 11 are fixed to each other by welding 5, so that the structural member 11 is supported by the pipe member 12 via the rib plate 13.

According to the assembly method 2, after inserting the pipe member 12 to which the rib plate 13 is attached in advance into the structural member 11, the peripheral portion of the rib plate 13 and the structural member 11 are easily assembled by simply fixing them by welding 5. Therefore, the manufacturing cost of the instrument panel member 10 can be reduced. Further, the pipe member 12, the rib rate 13 and the structural member 11 can be assembled with high rigidity and stably, and the quality of the instrument panel member 10 can be improved.

As described above, the instrument panel member structure of the automobile according to the present embodiment is the instrument panel member structure of the automobile arranged in the instrument panel at the front of the vehicle body in the vehicle width direction, in which the manufacturing cost is reduced, the rigidity is high, the quality is improved, and the quality is improved. It makes it possible to reduce the weight.

Although the instrument panel member structure of the automobile according to the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and various other modifications are possible.

For example, the base end of a bracket other than the steering bracket or the center bracket may be configured as a rib plate. Further, a bracket having a rib plate at the base end of the bracket and a dedicated rib plate having no bracket may be combined.

1,2 Insertion hole 3 Recession 4 Fitting hole 5 Welding 10,20 Instrument panel member 11,21,31 Structural member 12,22 Pipe member 13,16 Rib plate 13a Peripheral part 13b, 26,28 Plate surface
14,24 Side bracket 15,25,35 Hollow part 23 Bracket 23a Steering bracket 23b Center bracket

Claims (5)

It is an instrument panel member structure of an automobile arranged in the vehicle width direction in the instrument panel at the front of the vehicle body.
A structural member having a hollow portion, a pipe member inserted into the hollow portion of the structural member in the vehicle width direction, and a plate surface attached to the hollow portion along the vehicle body front-rear direction, and the pipe member is attached to the plate. An instrument panel member structure for an automobile, characterized by having a plate-shaped rib plate that is fitted and attached to a surface to support the structural member to the pipe member. The instrument panel member structure of an automobile according to claim 1, wherein the rib plate is a base end of a bracket attached to the instrument panel member. The automobile according to claim 1 or 2, wherein the structural member is provided with an fitting hole for fitting the peripheral edge portion of the rib plate, and the peripheral edge portion and the peripheral edge of the fitting hole are fixed to each other. Instrument panel member structure. It is a method of assembling the instrument panel member structure of an automobile arranged in the vehicle width direction in the instrument panel at the front of the vehicle body.
After attaching a plate-shaped rib plate fitted to the pipe member inserted into the structural member in the vehicle width direction to the hollow portion of the structural member having the hollow portion so that the plate surface is along the vehicle body front-rear direction, the said A method for assembling an instrument panel member structure of an automobile, which comprises fitting a pipe member to the plate surface of the rib plate and attaching the rib plate and the pipe member. It is a method of assembling the instrument panel member structure of an automobile arranged in the vehicle width direction in the instrument panel at the front of the vehicle body.
A plate-shaped rib plate is fitted to a pipe member inserted in a structural member having a hollow portion in the vehicle width direction so that the plate surface is fitted along the front-rear direction of the vehicle body, and then the pipe member is attached to the structural member. A method for assembling an instrument panel member structure of an automobile, which comprises inserting and attaching the rib plate and the structural member.

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