JPH01164681A - Floor structure for vehicle - Google Patents

Abstract

PURPOSE:To secure the strength by arranging cross members crossing the right and left floor side frames in the width direction on the rear face of a kick-up section and fitting suspension supporting brackets and seat belt anchors to the cross members. CONSTITUTION:A pair of the right and left floor side frames are arranged along the lower face from a front floor section 2 to a rear floor section 4. Cross members 8 with the U-shaped cross section extended in the car width direction are arranged at the preset positions on the rear face side of a kick-up section 3 and cross-connected to a pair of the right and left floor side frames 7, thus the rigidity of a floor panel is improved. A pair of supporting brackets 11 for supporting a suspension and seat belt anchors 14 are fitted to the cross members 8. The strength is thereby secured without providing reinforcing materials for fitting the supporting brackets 11 and the seat belt anchors 14.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a floor structure of a vehicle, particularly a floor panel constituting the floor surface of a vehicle, a seatbelt anchor that supports one end of a seatbelt, and one end of a suspension member. Regarding the structure around the joint with the support bracket that supports the.

(Prior Art) Vehicles, especially automobiles, are equipped with seat belts on the driver's seat, passenger seat, and rear seats for the purpose of protecting passengers. For example, according to Japanese Unexamined Patent Publication No. 127263/1983, a seat belt anchor fixed to one end of the belt is fixed at a predetermined position on the floor panel of an automobile. A cross member is provided on the back side (outside of the vehicle) of the rear end inclined surface part that is connected to the rear part of the seat cushion placement part that is provided integrally with the floor panel and extends in the vertical direction, and a cross member is provided at one end of the seat belt. By fixing the fixed seat belt anchor to the surface (inside the vehicle) side of the rear end inclined surface portion through bolts that pass through the inclined surface portion and the cross member disposed on the back surface thereof, The seat belt anchor is installed to improve its strength.

(Problems to be Solved by the Invention) In automobiles, in addition to installing seat belt anchors on the floor panel as described above, there is also a method for suspending the front and rear wheels on the floor panel, for example. A support bracket that supports one end of the suspension member will be removed by one inch. In this case, in order to improve the strength of the mounting of the support bracket to the floor panel, a separately prepared reinforcing member is placed at the position of the support bracket on the floor panel to ensure the strength of the specified mounting. This led to an unnecessary increase in the number of parts.

In addition, in recent years, with the aim of improving fuel efficiency by reducing the weight of vehicles, for example, not only the outer panel members that make up the vehicle body but also the floor panels that make up the floor surface are made of synthetic resin. is considered.

In this case, the rigidity of the floor panel tends to be insufficient compared to the conventional steel floor panel, and the seat belt anchor that supports one end of the seat belt is required for this synthetic resin floor panel. The problem has been how to securely mount a support bracket that supports one end of a suspension member while ensuring strength.

Therefore, the present invention unnecessarily increases the number of parts when attaching a seatbelt anchor that supports one end of a seatbelt or a support bracket that supports one end of a suspension member to a predetermined position of a floor panel that forms the floor surface of a vehicle. To provide a floor structure for a vehicle in which the seat belt anchor and the support bracket can be surely attached to the floor panel without causing any damage to the seat belt, while ensuring the strength of the predetermined attachment.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized by the following configuration.

That is, the floor panel includes a front floor part that constitutes the front floor of the vehicle compartment, a kick-up part that is connected to the front floor part and rises up and down, and a kick-up part that extends rearward from the upper part of the kick-up part. In a floor structure of a vehicle having a rear floor section that constitutes a rear floor surface of a vehicle interior, a pair of left and right floor side frames extending in the front-rear direction along the lower surface of the floor panel, and a pair of left and right floor side frames arranged in the width direction of the back surface of the kick-up section are provided. A cross member is provided and intersects with the left and right floor side frames, and a support bracket that supports one end of the suspension member and a seat belt anchor that supports one end of the seat belt are attached to the cross member. shall be.

Note that the floor panel may be formed of synthetic resin.

(Function) According to the above configuration, a pair of left and right floor side frames arranged in the front and back direction along the lower surface of the floor panel;
Since the kick-up portion of the floor panel intersects with a highly rigid cross member disposed in the width direction on the back surface, the rigidity of the floor panel is thereby further improved. Since a support bracket that supports one end of the suspension member and a seatbelt anchor that supports one end of the seatbelt are attached to the cross member, the rigidity of the floor panel is increased as described above. Therefore, by attaching these support brackets and seat belt anchors to the floor panel in a predetermined manner, strength can be ensured and support can be ensured. As a result, when supporting the support bracket or the seat belt anchor on the floor panel, there is no need to prepare a reinforcing member in advance as in the conventional case, and the number of parts does not increase unnecessarily.

In addition, when the floor panels mentioned above are made of synthetic resin, they tend to lack rigidity compared to steel floor panels, but in this case as well, the pair of left and right floor side frames By intersecting with the cross member, the rigidity of the floor panel is improved, and a support bracket that supports one end of the suspension member and a seat belt anchor that supports one end of the seat belt are attached to the cross member. These support brackets and seat belt anchors are reliably supported with a predetermined strength.

(Example) The present invention will be explained in detail below.

FIG. 1 shows a floor panel to which the vehicle floor structure according to this embodiment is applied. In this embodiment, the entire floor panel 1 is made of synthetic resin as shown in the figure. It is. This floor panel 1 includes a front floor section 2 that constitutes the front floor surface of the vehicle interior.
, a kick-up part 3 that is connected to the rear of the front floor part 2 and stands up vertically, and a rear floor part 4 that extends rearward from the upper part of the kick-up part 3 and forms, for example, the floor surface of a trunk room. have Further, in the vehicle width direction of the kick-up section 3, a plurality of shelf sections 5...5 are provided which protrude forward from the middle of the kick-up section 3 and are connected to the front floor section 2. A seat cushion (not shown) constituting a rear seat is placed and fixed on the upper surface 5a of each shelf 5. Moreover, roll pars 6 are integrally formed at predetermined positions on both sides of the front floor part 2 in the vehicle width direction so as to extend upward from both sides of the front floor part 2 and straddle the front floor part 2. Thus, the rigidity of the floor panel 1 is increased.

As shown in the figure, a pair of left and right floor side frames 7.7 are arranged along the lower surface of the floor panel 1 from the front floor part 2 to the rear floor part 4 and extend in the longitudinal direction of the vehicle body. like,
A cross member 8 extending in the vehicle width direction and having a U-shaped cross section (see Fig. 1) is disposed at a predetermined position on the back surface (outside the vehicle) of the kick-up portion 3. 8 and the pair of left and right floor side frames 7.7 intersect on the back side of the kick-up portion 3. Furthermore, as shown in FIGS. 2 to 4, left and right rear wheels 9.9 (only one is shown in FIG. 3) are suspended at the intersection between the cross member 8 and the left and right floor side frames 7.7. A pair of support brackets 11.11 supporting one end of the suspension arm 10a constituting the suspension device 10 for
．． It is fixed to the cross member 8 at portions corresponding to the positions on both sides of the cross member 7. In addition, the above suspension equipment Ml
A damper 10b and a coil spring 10c constituting the rear floor part 10 are mounted and supported by a floor side frame 7 disposed on the lower surface of the rear floor part 4 via brackets F-12 and F-13, respectively.

As shown in FIG. 5, a seat belt is provided at a predetermined position of the cross member 8 on the surface (inside the vehicle interior) of the kick-up portion 3 to support one end of a seat belt (not shown). A plurality of seat belt anchors 14...14 (see FIG. 1) are fixedly attached by bolts 15...15, respectively.

As shown in FIG. 2, a fuel tank is located in a recess 16 on the outside of the vehicle cabin formed on the back side of the shelf 5 located in the center of the plurality of shelves 5...5. 17, and as shown in FIG. 5, this fuel tank 17 has its flange portion 17a connected to the four portions 5b, 5b (see FIG. 1) formed on the upper surface portion 5a of the central shelf portion 5. The plurality of attachments are fixed via bolts 18...18.

According to the above configuration, the pair of left and right floor side frames 7 are disposed in the front and back direction along the lower surface of the floor panel 1.
．． 7, and the kick-up portion 3 in the floor panel 1
Since the cross member 8, which has high rigidity and is disposed in the vehicle width direction, crosses the back surface of the floor panel 1, the rigidity of the floor panel 1 is further improved. and,
Since the pair of support brackets 11.11 supporting one end of the suspension arm 10a and the seat belt anchor 14 supporting one end of the seat belt are attached to the loss member 8 described above, the rigidity of the floor panel 1 is increased as described above. In combination with the increased height, these support brackets 11.11 and the seat belt anchors 14 can be reliably supported while ensuring the required mounting strength to the floor panel 1. Thereby, when supporting the support brackets 11.11 and the seat belt anchors 14 on the floor panel 1, there is no need to prepare reinforcing members in advance as in the conventional case, and the number of parts can be reduced.

In addition, as shown in FIG. 6, on the back side (outside the vehicle cabin) of the recess 5c in the central part of the front wall of the shelf part 5 in the central part of the kick-up part 3 provided in the vehicle width direction, By providing the rib 19 that comes into contact with the fuel tank 17,
Shaking of the fuel tank 17 during driving etc. is reliably prevented.

Further, as shown in FIG. 7, ribs 20° 20 are integrally provided on both side walls 5d of the shelf 5 on both sides of the recess 16 on the back side of the shelf 5. , and bent pieces 17a', 17a' provided at predetermined positions on both sides of the flange portion 17a of the fuel tank 17 and bent downward as shown in the figure are in contact with the ribs 20, 20, respectively. This prevents the tank 17 from falling.

(Effects of the Invention) As described above, the present invention provides a pair of left and right floor side frames extending in the front-rear direction along the lower surface of a floor panel forming the floor surface of a vehicle, and a widthwise direction of the back surface of the kick-up portion of the floor panel. Since the floor panel is arranged to intersect with a highly rigid cross member arranged at Since seat belt anchors are installed, the rigidity of the floor panel is increased, and these support brackets and seat belt anchors can be installed in the specified manner on the floor panel to ensure strength and support. be able to. Thereby, when attaching the support bracket or seat belt anchor to the floor panel, there is no need to prepare a reinforcing member in advance as in the conventional case, and the number of parts can be reduced.

In particular, the present invention is effective when the floor panel is made of synthetic resin.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is an overall schematic diagram of a floor panel to which the floor structure of a vehicle according to this embodiment is applied, and Fig. 2 is a view taken from the section line ■-■ in Fig. 1. An enlarged cross-sectional view showing the rear part of the floor panel, Figure 3 is a cross-sectional view of the main parts taken along the section line ■-■ in Figure 2, and Figure 4 is an enlarged cross-sectional view of the main parts taken along the line IV-IV in Figure 3. , Figure 5.6 shows V-■ and Vl-Vl cutoff l17 in Figure 2, respectively.
FIG. 7 is a cross-sectional view of the main part taken along the line r, and FIG. 7 is a cross-sectional view of the main part taken along the section line -■ in FIG. 1...Floor panel, 2...Front floor section, 3
...Kick-up part, 4...Rear floor part, 7.7
...Floor side frame, 8...Cross member,
10a... Suspension member (suspension arm), 11.11... Support bracket, 14... Seat belt anchor.

Claims (2)

[Claims] (1) A front floor part whose floor panel constitutes the front floor of the passenger compartment, a kick-up part that is connected to the front floor part and rises up and down, and a kick-up part that extends rearward from the top of the kick-up part. A floor structure for a vehicle having a rear floor section that constitutes a rear floor surface of a vehicle compartment, the floor side frames being a pair of left and right floor side frames extending in the front-rear direction along the lower surface of the floor panel, and a width of the back surface of the kick-up section. A cross member is provided which is disposed in the direction of the left and right floor side frames and intersects with the left and right floor side frames, and the cross member is provided with a support bracket that supports one end of the suspension member and a seat belt anchor that supports one end of the seat belt. A vehicle floor structure characterized by having a. (2) The vehicle floor structure according to claim 1, wherein the floor panel is made of synthetic resin.