JP2001001952A - Floor reinforcing device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase a rigidity of a floor without sacrificing maintainability of an engine requiring a large opening at the center of the floor for engine maintenance for a truck with a non-tilt cab, or a bus with an engine installed at rear, and to secure a mount point for a seat belt anchor for a case with a wide area provided at the rear of a seat. SOLUTION: A floor panel 3 is fixed to main still provided in a lengthwise direction of a vehicle, and a large opening 3b is formed at a center 3a of the floor panel 3 between left and right seats 5 fixed on the floor panel 3, thereby allowing a long distance to a cross member 6 to the rear of the seats 5. At least a pair of brackets 11 are fixed on a bottom side of the floor panel 3 along the main sill and the floor panel 3. The opposing brackets 11 are connected with one or more cross members 13, the cross members 13 are detachably constituted, and seat belt anchors 12 for the left and right seats 5 are mounted on the bracket 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor reinforcing device for a vehicle, and particularly to a large opening at the center of the floor for maintenance of an engine, such as a truck having a cab that does not tilt and a bus having an engine located at the rear. Even if a vehicle is required, a detachable cross member can be attached to enhance the rigidity of the floor without sacrificing the maintainability of the engine. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extremely rational vehicle floor reinforcement device capable of securing an attachment point.

[0002]

2. Description of the Related Art The floor of a conventional cab-over-engine type vehicle equipped with a mechanism for tilting a cab is provided in the front-rear direction of the vehicle because the engine can be exposed and maintained by tilting the cab. A floor panel without an opening is mounted on the main sill, and the main sill is reinforced by a lateral cross member to further strengthen the mounting point of the seat belt anchor. That is, since there is no opening, there is no problem even if the cross member is arranged so as to straddle the upper part of the engine.

However, in the case of a cab-over-engine type vehicle having no cab tilt mechanism or a vehicle such as a bus in which the engine is located at the rear of the vehicle, it is necessary to perform normal engine maintenance from the floor side. In addition, a large opening must be provided in a part of the floor panel above the engine, and the opening cannot be reinforced by a cross member to ensure ease of maintenance. There was a disadvantage that it would.

A seat belt anchor of a cab-over-engine type vehicle equipped with a mechanism for tilting the cab is mounted on a cross member mounted laterally so as to straddle the upper part of the engine, but does not have a mechanism for tilting the cab. In a cab-over-engine type vehicle or the like that requires an opening in the floor panel, the cross member is not arranged right beside the seat.Therefore, the seat belt anchor has no other means than attaching it to the cross member arranged right behind the seat. There is a drawback in that it is difficult to arrange the cross member relatively behind the seat in order to increase the size of the part to improve maintainability or to increase the space behind the seat.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a main sill and a lower part of the floor panel along the floor panel. A cab-over-engine vehicle or engine without a cab tilt mechanism is located at the rear of the vehicle by securing at least a pair of brackets to the side and connecting the opposed brackets by one or more cross members. In a vehicle such as a bus, a large opening is provided in a part of a floor panel above an engine, and the rigidity of the floor can be ensured.

Another object of the present invention is to provide a cross member for connecting a bracket which is detachable in the above-described configuration, so that the cross member is attached during normal use and the cross member is removed during maintenance of the engine. To enhance the rigidity of the floor without sacrificing maintainability.

Still another object of the present invention is to provide a seat belt anchor for left and right seats mounted on a bracket in the above configuration so that the mounting point of the seat belt anchor does not depend on a cross member directly behind the seat. In this case, the space behind the seat can be ensured widely, and the opening at the center of the floor is widened to improve maintainability.

[0008]

In summary, the present invention (claim 1) comprises a floor panel fixed on a main sill disposed in the front-rear direction of a vehicle, and left and right seats fixed on the floor panel. A large opening is formed at the center of the floor panel located between the seat members and the floor reinforcement device for the vehicle is configured to increase the distance to the cross member behind the seat. At least one pair of brackets is fixed to the lower side of the floor panel, the opposed brackets are connected by one or more cross members, and the cross members are configured to be detachable.

According to the present invention (claim 2), a floor panel is fixed on a pair of main sills disposed in the front-rear direction of the vehicle, and the floor panel is positioned between left and right seats fixed on the floor panel. In a vehicle floor reinforcement device, a large opening is formed in the center of the floor panel to be formed, and the distance to the cross member behind the seat is increased.
Fixing at least one pair of brackets along the main sill and the floor panel from the lower side of the floor panel to each main sill so as not to narrow the opening;
The opposed brackets are connected by one or more cross members, and the cross members are configured to be detachable, and seat belt anchors for left and right seats are attached to the brackets.

According to a third aspect of the present invention, a floor panel is fixed on a pair of main sills arranged in the front-rear direction of the vehicle, and the floor panel is positioned between left and right seats fixed on the floor panel. In a vehicle floor reinforcement device, a large opening is formed in the center of the floor panel to be formed, and the distance to the cross member behind the seat is increased.
A flange of the main sill is formed to extend along the floor panel to the opening, and at least one pair of brackets is fixed to each main sill along the main sill and so as not to narrow the opening. The invention is characterized in that it is connected by a book or a plurality of cross members and the cross members are configured to be detachable, and seat belt anchors for left and right seats are attached to a bracket.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. 1 to 6 show a vehicle floor reinforcement device 1 according to a first embodiment of the present invention, in which a floor panel 3 is fixed on a pair of main sills 4 arranged in the front-rear direction of a vehicle 2. Center 3a of floor panel 3 located between left and right seats 5 fixed on floor panel 3
A large opening 3b is formed at the rear end of the seat 5 so that the distance to the cross member 6 behind the seat 5 is increased.

The vehicle 2 is, for example, a truck without a mechanism for tilting the cab 10, and a space 7 is provided behind the seat 5 in the cab 10 such that reclining of the seat can be allowed. I have.

At the center 3a of the floor panel 3, as shown in FIG. 4, there is formed a raised portion 3c which is raised in a trapezoidal cross section, and an opening 3b is formed at the top surface 3d of the raised portion 3c. . At normal times when the engine (not shown) is not maintained, the cover 8 is attached to the raised portion 3 by using the packing 9.
The opening 3b is closed by attaching to the opening 3b. This is to cut off engine sound and heat transmitted into the cab 10.

The main sill 4 is a member formed by, for example, pressing a steel plate into a hat-shaped cross section. One flange 4a of the main sill 4 is formed so as to extend to the opening 3a along the shape of the floor panel 3, and increases the thickness of the raised portion 3c to increase bending rigidity. Each main sill 4 is provided with a pair of brackets 11 so as to be along the flange 4a and not to narrow the opening 3b.
Is fixed.

The bracket 11 is formed by pressing a steel plate, for example, and has a flange 11e formed around the bracket 11 as shown in FIG. A nut 18 serving as an attachment point of the seat belt anchor 12 is welded to the flange 11e, and a bolt 1 for attaching the seat belt anchor is attached.
A hole 11b through which the hole 5 penetrates is formed. A nut 11d is welded to the back of the side surface 11c to which the cross member 13 is attached. By joining the flange 11e, the flange 4a of the main sill 4, and the floor panel 3, a thick closed cross section is formed, and rigidity as a mounting point of the seat belt anchor 12 can be secured.

The opposed brackets 11 are connected by, for example, one cross member 13, and the cross member 13 is configured to be detachable by bolts 14.

As shown in FIG. 7 (a), the cross member 13 has a structure in which flanges 13b are welded to both ends of a steel pipe 13a, and holes 13c for passing bolts 14 are formed in the flanges 13b. For example, four holes are drilled.

The cross member 13 is not limited to the above structure. For example, as shown in FIG. 7B, a flange 23b is welded to a C-shaped steel 23a, and
7C, a flange 23b may be welded to an L-shaped steel 33a, and a bolt 1 may be attached to the flange 33b.
A hole 33c for passing through the hole 4 may be formed, or an I-shaped steel (not shown) may be used.

A seat belt anchor 12 for the left and right seats 5 is attached to the bracket 11 by bolts 15 and washers 16 and a nut 18 welded to the back surface of the flange 11e.

A floor reinforcing device 21 for a vehicle according to a second embodiment of the present invention has a floor panel 3 fixed to, for example, two main sills 24 in FIGS. It is the same as the first embodiment in that a large opening 3b is formed in the center 3a of the floor panel 3 located between the fixed left and right seats 5.

The difference from the first embodiment is that the main sill 24
It is the shape of. The flange 24a of the structural member obtained by pressing the steel plate into a hat-shaped cross section is not extended, and the pair of flanges 24a have exactly the same shape. This is a shape for suppressing production cost and weight increase. Accordingly, the bracket 11 is fixed over both the main sill 24 and the floor panel 3 as shown in FIG.

The other parts are the same as those of the first embodiment of the present invention, and the same parts are designated by the same reference numerals in the drawings.
The description is omitted.

As shown in FIG. 10, a vehicle floor reinforcing device 31 according to a third embodiment of the present invention uses two pairs of brackets 11 and two cross members 13 based on the first embodiment. It is reinforced. This is a configuration for requiring a larger amount of reinforcement when it is necessary to secure a larger opening 3b in a vehicle (not shown) in which an engine is mounted on the rear side, such as a large bus. And, if necessary, further cross member 1
3 may be added.

Since the other parts are the same as those of the first embodiment of the present invention, the same parts are denoted by the same reference numerals in the drawings, and description thereof will be omitted.

The present invention is configured as described above,
Hereinafter, the operation will be described. First, a vehicle floor reinforcement device 1 according to a first embodiment of the present invention will be described.
As shown in FIG. 3, the floor panel 3 has an opening 3 b in the center 3 a of the floor panel 3, so that the floor panel 3 has an open cross section as it is and the rigidity is significantly reduced. By the connection, the floor panel 3 can have a closed cross section, and it is possible to enhance the floor rigidity as in the case where the cross member is attached between the seats.

At the time of maintenance of the engine, after removing the cover 8, all the bolts 14 are removed and the cross member 1 is removed.
By removing 3, the engine maintenance work can be performed from the opening 3b of the floor panel 3 without any obstruction. If the cross member 13 is attached again after the maintenance is completed, it is possible to return to a state in which the floor rigidity is enhanced again. Since the time required for attaching and detaching the cross member is short, the maintainability is not sacrificed.

Further, since the flange 11e of the bracket 11, the flange 4a of the main sill 4 and the floor panel 3 form a thick closed cross section, the seat belt anchor 12 can be mounted with sufficient mounting rigidity. A large space can be secured behind the seat 5 with a distance from the cross member 6, and the opening 3b can be widened to improve maintainability.

The floor reinforcement device 21 for a vehicle according to the second embodiment of the present invention is different from the first embodiment only in the shape of the flange 24a of the main sill 24, and therefore the description of its operation is omitted.

In the vehicle floor reinforcement device 31 according to the third embodiment of the present invention, the floor stiffness is unavoidably reduced as it is because the opening 3b is larger. As a result, floor rigidity equivalent to that of a vehicle (not shown) having no opening 3b can be ensured. In addition, by removing all the cross members 13 during maintenance, engine maintenance can be efficiently performed from the wide opening 3b. Can be performed.

[0030]

According to the present invention, at least a pair of brackets are fixed to the lower side of the floor panel along the main sill and the floor panel as described above, and the opposed brackets are connected by one or more cross members. Because
Even in cab-over-engine vehicles without a cab tilt mechanism or in vehicles such as buses where the engine is located at the rear of the vehicle, the rigidity of the floor is increased by providing a large opening in a part of the floor panel above the engine. There is an effect that can be secured.

In the above structure, the cross member connecting the brackets is detachable, so that the cross member can be attached during normal use, and the cross member can be detached during maintenance of the engine. There is an effect that the rigidity of the floor can be strengthened without sacrificing.

Further, in the above configuration, since the seat belt anchors for the left and right seats are mounted on the bracket, the mounting points of the seat belt anchors do not need to depend on the cross member just behind the seat. As a result, there is an effect that a wide space can be secured behind the seat, and the opening at the center of the floor is widened to improve maintainability.

[Brief description of the drawings]

FIG. 1 to FIG. 6 relate to a first embodiment of the present invention,
FIG. 1 is a partial perspective view of a vehicle equipped with a vehicle floor reinforcement device.

FIG. 2 is a partial longitudinal sectional view of a seat and a floor panel section as viewed from the left side of the vehicle.

FIG. 3 is a perspective view of a vehicle floor reinforcement device.

FIG. 4 is a longitudinal sectional view of a vehicle floor reinforcement device.

FIG. 5 is an exploded perspective view of a main part of the vehicle floor reinforcement device.

FIG. 6 is a longitudinal sectional view of an essential part of a vehicle floor reinforcing device.

FIG. 7 is a perspective view illustrating three types of cross members.

FIG. 8 and FIG. 9 relate to a second embodiment of the present invention,
FIG. 8 is an exploded perspective view of a main part of a vehicle floor reinforcement device.

FIG. 9 is a longitudinal sectional view of an essential part of a vehicle floor reinforcement device.

FIG. 10 is a perspective view of a vehicle floor reinforcement device according to a third embodiment of the present invention.

DESCRIPTION OF SYMBOLS 1 Vehicle floor reinforcement device 2 Vehicle 3 Floor panel 3a Center 3b Opening 4 Main sill 4a Flange 5 Seat 6 Cross member 11 Bracket 12 Seat belt anchor 13 Cross member 21 Vehicle floor reinforcement device 23 Cross member 24 Main sill 31 Vehicle floor reinforcement device 33 Cross member

Claims (3)

[Claims] A floor panel is fixedly mounted on a main sill disposed in the front-rear direction of a vehicle, and a large opening is provided at the center of the floor panel located between left and right seats fixed on the floor panel. Is formed, and the distance to the cross member behind the seat is increased, wherein at least one pair of brackets is provided below the floor panel along the main sill and the floor panel. After fixing the bracket,
A floor reinforcing device for a vehicle, wherein the cross member is connected by a book or a plurality of cross members, and the cross members are configured to be detachable. 2. A floor panel is fixedly mounted on a pair of main sills arranged in the front-rear direction of the vehicle, and a large central portion of the floor panel located between left and right seats fixed on the floor panel. An opening is formed, and in a vehicle floor reinforcing device configured to increase the distance to the cross member behind the seat, the opening is formed so as to be along the main sill and the floor panel and not to narrow the opening. At least a pair of brackets are fixed from the lower side of the floor panel over the respective main sills, the opposed brackets are connected by one or a plurality of cross members, and the cross members are configured to be detachable. A floor reinforcement device for a vehicle, comprising seat belt anchors for left and right seats. 3. A floor panel is fixedly mounted on a pair of main sills disposed in the front-rear direction of the vehicle, and a large central portion of the floor panel located between left and right seats fixed on the floor panel. In a vehicle floor reinforcement device having an opening formed therein and configured to increase a distance to a cross member behind the seat, a flange of the main sill extends to the opening along the floor panel. Fixing at least a pair of brackets to each of the main sills along the main sill and not narrowing the opening, connecting the opposed brackets with one or more cross members, and attaching and detaching the cross members. And a seat belt anchor for the left and right seats attached to the bracket. A reinforcement device.