JP2022057346A - Floor step structure of vehicle - Google Patents

Abstract

To provide a floor step structure of a vehicle capable of efficiently improving, with a simple structure, the strength and rigidity of a floor step.SOLUTION: In a floor step structure of a motorcycle, a battery storage part (26d) storing a battery (41) is provided in a floor step (21). The floor step (21) includes a battery storage part cover (27) covering the battery storage part (26d) from above and a recessed part (26b) in which the battery storage part cover (27) is arranged. The recessed part (26b) includes a projection part (26s) abutting on a vehicle body frame (11) on its bottom wall (26c).SELECTED DRAWING: Figure 6

Description

The present invention relates to a vehicle floor step structure.

Conventionally, as a vehicle equipped with a floor step, a vehicle in which a battery is arranged below the floor step (see, for example, Patent Document 1) or a vehicle in which the lower end of the floor step is attached to a vehicle body frame (for example, see Patent Document 2). It has been known.

Japanese Patent No. 6559356 Japanese Patent No. 4243221

In Patent Document 1 and Patent Document 2, the structure that receives the load acting on the floor step becomes complicated, and the structure that can effectively improve the strength and rigidity of the floor step is not provided.
An object of the present invention is to provide a vehicle floor step structure capable of effectively improving the strength and rigidity of a floor step with a simple structure.

The floor step structure of a vehicle is a floor step structure of a vehicle in which a battery storage unit for storing a battery is provided in the floor step. The floor step includes a battery storage unit cover that covers the battery storage unit from above and the battery storage unit. The recess is provided with a recess for arranging the portion cover, and the recess is characterized in that the bottom wall thereof is provided with a protrusion that abuts on the vehicle body frame.

In the above configuration, the battery accommodating portion may be formed on the bottom wall of the recess, and the projecting portion may be located at least on the left, right, front and back of the battery accommodating portion.

Further, in the above configuration, the protruding portion may be arranged in a range overlapping with the length in the front-rear direction of the battery accommodating portion.
Further, the protruding portion may be arranged at a position within the width of the battery accommodating portion in the vehicle width direction and at a position separated from the battery accommodating portion in the front-rear direction.
Further, in the above configuration, the protruding portion may be formed in a rectangular shape in a plan view, and the long side of the rectangular shape may be arranged along a direction extending in the front-rear direction of the vehicle body frame.

Further, in the above configuration, the battery storage unit includes a storage unit bottom wall, and the storage unit bottom wall includes a frame unit inside the peripheral wall forming the battery storage unit, and the storage unit inside the frame unit. The battery may be arranged on the bottom wall.
Further, in the above configuration, a fixing member for fixing the battery to the floor step is provided, and the fixing member fixing portion to which the fixing member is fixed is located between the frame portion and the peripheral wall in the battery accommodating portion. It may be provided at the position of.

In the floor step structure of the vehicle, the floor step includes a battery compartment cover that covers the battery compartment from above and a recess for arranging the battery compartment cover, and the recess is a protrusion that abuts on the bottom wall of the vehicle body frame. By providing a recess and a protrusion on the floor step, the strength and rigidity of the floor step can be secured with a simple structure and both the recess and the protrusion can be improved, and the protrusion of the floor step can be used as a vehicle body frame. When the load acting on the floor step is supported by contacting the floor step, the floor step can be prevented from being damaged or deformed, and bending can be suppressed.

In the above configuration, the battery storage portion is formed on the bottom wall of the recess, and the protrusion is located at least on the left, right, front and back of the battery storage portion, so that the strength and rigidity around the battery storage portion in the floor step can be increased. Can be enhanced.
Further, in the above configuration, since the protruding portion is arranged in a range overlapping the length of the battery housing portion in the front-rear direction, the battery storage portion cover can be made compact in the front-rear direction of the vehicle. In addition, the weight of the battery can be efficiently supported.

Further, in the above configuration, the protruding portion may be arranged at a position within the width of the battery accommodating portion in the vehicle width direction and at a position separated from the battery accommodating portion in the front-rear direction. According to this configuration, the protrusions can be compactly arranged in the vehicle width direction.
Further, in the above configuration, the projecting portion is formed into a rectangular shape in a plan view, and the long side of the rectangle is arranged along the direction extending in the front-rear direction of the vehicle body frame, so that the area of the projecting portion in contact with the vehicle body frame can be increased. The surface pressure can be reduced, and the load acting on the floor step can be effectively supported by the protrusion.

Further, in the above configuration, the battery storage portion is provided with the bottom wall of the storage portion, the bottom wall of the storage portion is provided with a frame portion inside the peripheral wall forming the battery storage portion, and the battery is provided on the bottom wall of the storage portion inside the frame portion. Is arranged, the rigidity of the battery storage portion can be improved by the peripheral wall and the frame portion, and the bending of the battery storage portion can be suppressed.
Further, in the above configuration, a fixing member for fixing the battery to the floor step is provided, and the fixing member fixing portion for fixing the fixing member may be provided at a position between the frame portion and the peripheral wall in the battery storage portion. good. According to this configuration, since the fixing member can be fixed at a position close to the battery inside the peripheral wall, the battery can be firmly fixed with a compact structure.

It is a perspective view which shows the main part of the motorcycle which provided the floor step of the embodiment which concerns on this invention. It is a perspective view which shows the floor step alone. It is a top view which shows the floor step alone. It is a perspective view which looked at the floor step alone from diagonally below. It is a top view which shows the battery accommodating part in which a battery is accommodating. It is sectional drawing which shows the floor step and its surroundings.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the explanation, the description of the directions such as front / rear / left / right and up / down is the same as the direction with respect to the vehicle body unless otherwise specified. Further, the reference numeral FR shown in each figure indicates the front of the vehicle body, the reference numeral UP indicates the upper portion of the vehicle body, the reference numeral LH indicates the left side of the vehicle body, and the parts mounted on the vehicle indicate the direction when the vehicle is mounted.
FIG. 1 is a perspective view showing a main part of a motorcycle 10 provided with a floor step 21 according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a floor step unit 26.
As shown in FIG. 1, the motorcycle 10 is a scooter-type saddle-riding vehicle including a vehicle body frame 11 as a skeleton and a floor step 21 provided at the lower front portion of the vehicle body frame 11.

The vehicle body frame 11 includes a head pipe (not shown), a down frame 13, a pair of left and right underframes 14, and a pair of left and right rear frames 16.
The head pipe constitutes the front end portion of the vehicle body frame 11. Although the front wheels and front forks are not shown, the headpipes steerably support the front wheels via the front forks. The down frame 13 extends downward from the head pipe. The left and right underframes 14 gradually spread to the left and right from the left and right of the lower part of the down frame 13 and extend rearward. The left and right rear frames 16 are connected to the rear ends of the left and right underframes 14 and extend diagonally upward and rearward to support a seat (not shown) on which the occupant sits.

The floor step 21 is a portion on which the occupant riding on the motorcycle 10 rests his / her feet, and constitutes a part of the vehicle body cover 20. The vehicle body cover 20 includes a floor step 21, a pair of left and right side covers 22 extending downward from both side edges of the floor step 21, and an undercover 23 that is passed to the left and right side covers 22 to cover the lower portion of the vehicle body.
The left and right underframes 14 are arranged between the floor step 21 and the undercover 23.

The floor step 21 is composed of a floor step single unit 26 and a battery storage portion cover 27 detachably provided in the central portion of the floor step single unit 26.
As shown in FIGS. 1 and 2, the floor step unit 26 has a recess 26b formed in a downward recess in the center of the upper surface 26a and a battery storage portion formed in a recess in the bottom wall 26c of the recess 26b. It is equipped with 26d.

The recess 26b is a portion where the peripheral edge of the battery storage cover 27 is arranged, and the battery storage cover 27 is attached to the bottom wall 26c. Specifically, a pair of left and right screw insertion holes 27a are formed in the battery storage cover 27, and plate nuts 31 are attached to both sides of the battery storage 26d on the bottom wall 26c of the floor step unit 26. Then, a screw (not shown) is passed through the screw insertion hole 27a and screwed into the plate nut 31.
The height of the peripheral wall 26e of the recess 26b is equal to or substantially equal to the thickness of at least the peripheral portion 27b of the battery housing cover 27. As a result, it is possible to suppress a step between the upper surface 26a of the floor step unit 26 and the upper surface 27c of the battery storage cover 27.

A plurality of screw insertion holes 26g arranged in the front-rear direction are formed in the portions of the floor step unit 26 near the left and right side edges 26f. The screw 32 (see FIG. 6) inserted into each screw insertion hole 26g is fastened to the fastening portion 22a (see FIG. 6) of the left and right side covers 22. As a result, the left and right side covers 22 are attached to the floor step unit 26.
One of the left and right underframes 14, specifically, the left underframe 14 is provided with a stand support portion 33 that swingably supports a side stand (not shown), and the stand support portion 33 is the rear portion of the left side cover 22. It is exposed to the outside.

FIG. 3 is a plan view showing the floor step single unit 26, and FIG. 4 is a perspective view of the floor step single unit 26 as viewed from diagonally below.
As shown in FIG. 3, the peripheral wall 26e of the recess 26b includes a front wall 26h, a pair of left and right inclined walls 26j, a pair of left and right side walls 26k, and a rear wall 26m. The front wall 26h has a peripheral wall curved portion 26q formed along a rear-convex front edge curved portion 26p provided in the central portion of the front edge 26n of the floor step single unit 26, and the vehicle width direction from both ends of the peripheral wall curved portion 26q. A pair of left and right straight portions 26r extending linearly to the outside are provided. The left and right inclined walls 26j are inclined with respect to the front-rear direction so as to be a front squeeze. The left and right side walls 26k extend in the front-rear direction. The rear wall 26m is connected to each rear end of the left and right side walls 26k and is curved so as to be convex forward.

As shown in FIGS. 3 and 4, the bottom wall 26c of the recess 26b has a plurality of projecting portions 26s having a rectangular shape in a plan view formed along the left and right slanted walls 26j and the left and right side walls 26k, and a plurality of projecting portions. It is provided with a battery accommodating portion 26d formed in a concave shape inward in the vehicle width direction with respect to the 26s.
The plurality of projecting portions 26s are located around the battery accommodating portion 26d, and more specifically, the projecting portions 26s are arranged in a range overlapping the length in the front-rear direction of the battery accommodating portion 26d in the side view of the vehicle. Further, in the plurality of projecting portions 26s, the long sides of the rectangle are arranged along the left and right inclined walls 26j and the left and right side walls 26k, respectively, and project downward from the bottom wall 26c.

Further, in the plurality of projecting portions 26s, the long sides of the rectangle are arranged along the extending direction of the vehicle body frame 11, specifically, the left and right underframes 14 and the left and right rear frames 16. Further, the plurality of projecting portions 26s are arranged so as to overlap the left and right underframes 14 and the left and right rear frames 16 in a plan view.
The battery storage unit 26d includes a storage unit peripheral wall 26t as a peripheral wall formed in a rectangular shape in a plan view, and a storage unit bottom wall 26u connected to the lower edge of the storage unit peripheral wall 26t.

The storage portion peripheral wall 26t is composed of a storage portion front wall 26v, a pair of left and right storage portion side walls 26w, and a storage portion rear wall 26x. A bottom wall opening 26y is provided behind the storage portion bottom wall 26u, and the storage portion bottom wall 26u is connected to one (right) storage portion side wall 26w and a part of the storage portion rear wall 26x. Not. The bottom wall opening 26y is a portion for pulling out the wire harness from the inside of the battery storage portion 26d to the lower side of the battery storage portion 26d.

As shown in FIG. 4, a plurality of downwardly projecting ribs 28y are integrally formed on the bottom surface 28x of the flat step flat portion 28w excluding the battery storage portion 26d of the floor step unit 26 so as to extend in the front-rear direction. Has been done. Further, on the bottom surface 28x, a plurality of ribs 28ya projecting downward are integrally formed so as to extend in the vehicle width direction. Further, a plurality of ribs 28z are integrally formed between the bottom surface 28x and the peripheral wall 26e of the battery storage portion 26d so as to extend in the vehicle width direction.

The plurality of ribs 28y and 28z are connected to each protrusion 26s. The plurality of ribs 28y, 28ya, 28z are similarly formed in the step flat portion 28w around the battery accommodating portion 26d.
As a result, the rigidity of the flat step portion 28w and the battery accommodating portion 26d of the floor step single unit 26, the plurality of protruding portions 26s, and the floor step single unit 26 as a whole can be improved.

FIG. 5 is a plan view showing a battery storage unit 26d in which the battery 41 is housed.
The storage unit bottom wall 26u located in front of the battery storage unit 26d includes a battery installation unit 28a in which the battery 41 is installed. As described above, the floor step 21 (see FIG. 1) is provided with the battery accommodating portion 26d for accommodating the battery 41.
The battery installation portion 28a includes a frame portion 28b having a rectangular outline, and the battery 41 is arranged inside the frame portion 28b. As described above, the battery storage portion 26d includes a storage portion bottom wall 26u, and the storage portion bottom wall 26u includes a frame portion 28b inside the storage portion peripheral wall 26t forming the battery storage portion 26d. The frame portion 28b includes a front frame portion 28c, a left frame portion 28d, a right frame portion 28e, and a rear frame portion 28f. A battery 41 is arranged on the bottom wall 26u of the storage portion inside the frame portion 28b.

The right frame portion 28e includes a plate-shaped right protruding portion 28g protruding upward, and a right opening 28h (see FIG. 2) penetrating in the vehicle width direction is formed in the right protruding portion 28g.
A bulging portion 28j that bulges above the bottom wall 26u of the storage portion is provided between the left frame portion 28d and the side wall of the storage portion 26w on the left side in a top view, and a nut 45 ( Fixing member fixing part) is attached. The battery 41 is fixed from above by a plate-shaped fixing member 43 passed to the right frame portion 28e and the left frame portion 28d. The fixing member 43 has one end 43a inserted into the right opening 28h of the right frame 28e, and the other end 43b fastened with a screw 44 screwed into the nut 45 of the bulging 28j.

The battery 41 is provided with a positive electrode terminal 41a and a negative electrode terminal 41b, which are connection terminals, separated from the rear portion in the vehicle width direction. Conductors 46 and 47 are connected to the positive electrode terminal 41a and the negative electrode terminal 41b, respectively. The rear frame portion 28f includes a pair of left and right engaging portions 28k, and the fuse box 48 is engaged with the left and right engaging portions 28k. The fuse box 48 is arranged above the bottom wall opening 26y, and one end of each fuse (not shown) mounted on the fuse box 48 is connected to the positive electrode terminal 41a by a lead wire (not shown), and the other end is an electrical component of the vehicle. Connected to another conductor (not shown) that extends to. The conductors 46, 47 and the conductors extending from the fuse box 48 are led out to the outside of the floor step unit 26 through the bottom wall opening 26y.

FIG. 6 is a cross-sectional view showing the floor step 21 and its surroundings, and shows the VI-VI shown in FIG. 3, including the left and right side covers 22 and the battery 41 in addition to the floor step unit 26 drawn in FIG. It is sectional drawing cut along the line.
The floor step 21 includes a battery storage portion cover 27 that covers the battery storage portion 26d from above, and a recess 26b in which the battery storage portion cover 27 is arranged.

The left and right underframes 14 and the left and right rear frames 16 (see FIG. 3) are made of round pipes. The protrusion 26s extends downward from the bottom wall 26c of the recess 26b.
As described above, the recess 26b is provided with a protrusion 26s that abuts on the bottom wall 26c of the vehicle body frame 11.
The protruding portion 26s is formed in an integrally hollow structure including a tubular peripheral wall portion 28m and a bottom wall portion 28n connected to the lower end of the peripheral wall portion 28m. A rubber cushion material 51 is attached to the lower surface 28p of the bottom wall portion 28n, and the cushion material 51 is applied to the upper portions of the outer peripheral surfaces of the left and right underframes 14 and the left and right rear frames 16.

The fixing member 43 for fixing the battery 41 includes a straight pressing portion 43c that presses the upper surface 41c of the battery 41, a bent portion 43d that is bent downward from the left end portion of the holding portion 43c, and a bent portion 43d that extends to the left from the bent portion 43d. It is integrally formed with the fastening portion 43e to be fastened by the screw 44.
Since the bulging portion 28j to which the fastening portion 43e is fastened is arranged below the upper surface 41c of the battery 41, it is possible to prevent the screw 44 for fastening the fastening portion 43e from interfering with the battery storage portion cover 27.
The bottom wall 26u of the storage portion of the battery storage portion 26d is formed with a continuous protrusion 28r projecting upward over the outer edge 28q connected to the front wall 26v of the storage portion (see FIG. 3) and the side walls 26w of the left and right storage portions. There is. The continuous protrusion 28r is a portion that increases the rigidity of the storage portion bottom wall 26u, and suppresses the bending of the storage portion bottom wall 26u due to the heavy battery 41.

As shown in FIGS. 1, 2 and 6 above, the floor step structure of the vehicle is provided with a battery storage unit 26d for storing the battery 41 in the floor step 21. The floor step 21 includes a battery storage portion cover 27 that covers the battery storage portion 26d from above, and a recess 26b in which the battery storage portion cover 27 is arranged. The recess 26b has a bottom wall 26c provided with a vehicle body frame 11, specifically, a protrusion 26s that abuts the underframe 14 and the rear frame 16.

According to this configuration, by providing the recess 26b and the protrusion 26s in the floor step 21, the strength and rigidity of the floor step 21 can be ensured with a simple structure and can be improved in both the recess 26b and the protrusion 26s. As a result, when the protruding portion 26s of the floor step 21 is brought into contact with the vehicle body frame 11 to support the load acting on the floor step 21, damage or deformation of the floor step 21 can be prevented and bending can be suppressed.

Further, as shown in FIG. 3, a battery accommodating portion 26d is formed on the bottom wall 26c of the recess 26b, and the protruding portions 26s are located on the left and right sides of the battery accommodating portion 26d.
According to this configuration, the strength and rigidity around the battery accommodating portion 26d in the floor step 21 can be increased.

Further, as shown in FIGS. 3 and 4, the projecting portion 26s is arranged in a range overlapping the length in the front-rear direction of the battery accommodating portion 26d when viewed from the side of the vehicle.
According to this configuration, the battery storage cover 27 can be made compact in the front-rear direction of the vehicle. In addition, the weight of the battery can be efficiently supported.

Further, as shown in FIG. 3, the projecting portion 26s is formed in a rectangular shape in a plan view, and the long side of the rectangle is arranged along the direction extending in the front-rear direction of the vehicle body frame 11, specifically, the under frame 14 and the rear frame 16. Will be done.
According to this configuration, the contact area of the protruding portion in contact with the vehicle body frame 11 can be increased, the surface pressure can be reduced, and the load acting on the floor step 21 can be effectively supported by the protruding portion 26s. can.

Further, as shown in FIGS. 5 and 6, the battery storage unit 26d includes a storage unit bottom wall 26u, and the storage unit bottom wall 26u has a frame portion inside the storage unit peripheral wall 26t forming the battery storage unit 26d. 28b is formed, and the battery 41 is arranged inside the frame portion 28b.
According to this configuration, the rigidity of the battery storage portion 26d can be improved by the storage portion peripheral wall 26t and the frame portion 28b, and the bending of the battery storage portion 26d can be suppressed.
Further, a fixing member 43 for fixing the battery 41 to the floor step 21 is provided, and a nut 45 for fixing the fixing member 43 is provided at a position between the frame portion 28b and the storage portion peripheral wall 26t in the battery storage portion 26d. Be done.
According to this configuration, since the fixing member 43 can be fixed at a position close to the battery 41 inside the storage portion peripheral wall 26t, the battery 41 can be firmly fixed in a compact structure.

The above-described embodiment shows only one aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.
For example, in the above embodiment, as shown in FIG. 3, the shape of the protruding portion 26s is a rectangular shape in a plan view, but the shape is not limited to this, and a square, a round shape, an elliptical shape, an oval shape, a rhombus, or the like in the plan view. , A shape other than a rectangle, such as a shape similar to these shapes, may be used.
Further, in the above embodiment, the configuration in which the protruding portion 26s is arranged on the left and right outer sides of the battery accommodating portion 26d has been described as an example, but the present invention is not limited thereto. For example, the protruding portion 26s may be arranged at positions in front of and behind the battery accommodating portion 26d. Further, the protruding portion 26s may be located at least one of the left and right and the front and rear with respect to the battery storage portion 26d, but the protruding portion 26s is arranged at both the left and right outer positions and the front and rear outer positions. Is also good. As a result, the strength and rigidity of the floor step 21 can be effectively increased. Further, the protruding portion 26s may be arranged at a corner portion having a substantially rectangular shape in the recess 26b formed in a substantially rectangular shape in a plan view.
Further, the protruding portion 26s may be arranged at a position within the width of the battery accommodating portion 26d in the vehicle width direction and at a position separated from the battery accommodating portion 26d in the front-rear direction. In this case, the underframe 14 may be a single frame member extending in the vehicle front-rear direction at the center in the vehicle width direction. By arranging the protruding portion 26s at a position within the width of the battery storage portion 26d in the vehicle width direction and at a position separated from the battery storage portion 26d in the front-rear direction, one underframe is provided in the center of the vehicle width direction. The protrusion 26s can be brought into contact with the 14.

10 Motorcycles (vehicles)
11 Body frame 21 Floor step 26b Recess 26c Bottom wall 26d Battery storage part 26s Protruding part 26t Storage part peripheral wall (peripheral wall)
26u Storage part bottom wall 27 Battery storage part cover 28b Frame part 41 Battery 43 Fixing member 45 Nut (fixing member fixing part)

Claims (7)

In a vehicle floor step structure in which a battery storage unit (26d) for storing a battery (41) is provided in the floor step (21).
The floor step (21) includes a battery storage unit cover (27) that covers the battery storage unit (26d) from above, and a recess (26b) in which the battery storage unit cover (27) is arranged.
The recess (26b) is a floor step structure of a vehicle, characterized in that the bottom wall (26c) is provided with a protrusion (26s) that abuts on the vehicle body frame (11). The battery accommodating portion (26d) is formed on the bottom wall (26c) of the recess (26b), and the protruding portion (26s) is located at least on the left, right, front and back of the battery accommodating portion (26d). The vehicle floor step structure according to claim 1. The vehicle floor step structure according to claim 1 or 2, wherein the protruding portion (26s) is arranged in a range overlapping the length in the front-rear direction of the battery accommodating portion (26d). The protrusion (26s) is characterized in that it is arranged at a position within the width of the battery accommodating portion (26d) in the vehicle width direction and at a position separated from the battery accommodating portion (26d) in the front-rear direction. The vehicle floor step structure according to claim 1 or 2. One of claims 1 to 4, wherein the protruding portion (26s) is formed in a rectangular shape in a plan view, and the long side of the rectangle is arranged along a direction extending in the front-rear direction of the vehicle body frame (11). The vehicle floor step structure described in paragraph 1. The battery storage portion (26d) includes a storage portion bottom wall (26u), and the storage portion bottom wall (26u) has a frame portion (28b) inside a peripheral wall (26t) forming the battery storage portion (26d). The vehicle according to any one of claims 1 to 5, wherein the battery (41) is arranged on the bottom wall (26u) of the storage portion inside the frame portion (28b). Floor step structure. A fixing member (43) for fixing the battery (41) to the floor step (21) is provided.
The fixing member fixing portion (45) to which the fixing member (43) is fixed is provided at a position between the frame portion (28b) and the peripheral wall (26t) in the battery accommodating portion (26d). The vehicle floor step structure according to claim 6.

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