JP4448753B2 - Vehicle floor structure - Google Patents

Description

  The present invention relates to an improvement in a vehicle floor structure.

2. Description of the Related Art As a conventional vehicle floor structure, there is known a structure in which a floor portion on which a passenger puts his / her foot while driving is provided at almost the same height as a step for getting on / off (for example, see Patent Document 1).
JP 63-20284 A

Patent Document 1 will be described below. In addition, about the code | symbol, what was described in the gazette was used.
2 and 3 of Patent Document 1, a floor plate 14 is provided between the left and right side pipes 1a, 1a constituting the main frame 1, and the step pipes are attached to the outsides of the side pipes 1a, 1a in the vehicle width direction. It is described that the work frame 5 is attached, the step 15 is attached to each of the step attachment frames 5 and 5, and the floor plate 14 is substantially the same height as the step 15.

Since the floor plate 14 is provided on the left and right side pipes 1a, 1a to form the floor, the space under the floor is small, and it is difficult to arrange vehicle components.
Generally, parts such as various harnesses, drive system parts, and auxiliary machines are arranged in the space under the floor. If this space is larger, the above parts can be easily arranged, and other small items can be stored. Space is also available, which is convenient.

  An object of the present invention is to provide a subframe at a position one step higher than the lower frame, and to form a floor on the subframe to provide an underfloor space and secure a storage space.

According to a first aspect of the present invention, there is provided a front frame that supports a suspension for a front wheel and includes a steering member, a lower frame coupled to a rear portion of the front frame, and an upper portion of the lower frame for supporting seats provided on the left and right sides, respectively. A power supply unit provided at a position overlapping the left and right seats in plan view, below the left and right seats and above the lower end of the lower frame, and a drive shaft extending forward from the power unit. In the vehicle floor structure in which a floor portion for footrest is provided above the frame, and steps for getting on and off are arranged outside the floor in the vehicle width direction, between the front frame and the seat frame and more than the lower frame Provide a sub-frame to support the floor at a high position and step to the side of the lower frame By providing the step support frame for supporting the floor and one step higher than the step, a step, from the side of the floor portion, extending to the rear than the seat, a drive shaft, and the sub-frame and the lower frame as viewed from the side A fuel tank extending in the vehicle width direction is provided in front of the power unit and below the left and right seats, and the fuel tank is swelled forward at the center of the left and right widths to form a floor portion. The rear edge protrudes forward .

  According to a second aspect of the present invention, in the above configuration, preferably, the step is provided at substantially the same height as the lower frame.

According to a third aspect of the present invention, in the above configuration, preferably, the step support frame includes a lower first side frame, a lower second side frame, and a lower third side frame that extend from the lower frame toward the vehicle side, and these The lower first side frame, the lower second side frame, and the lower third side frame each have a U-shaped side U-shaped frame attached to the tip of each .

  In the invention according to claim 1, the floor portion is raised one step higher than the step, and the visibility of the driver can be improved by raising the seat seat surface position, and the stepping on the floor portion can be improved by the step. . In addition, by providing the sub-frame at a position higher than the lower frame, a space can be formed between the sub-frame and the lower frame, and harnesses, drive system components, auxiliary machinery, etc. are arranged in this space. Furthermore, it is possible to secure a storage space for storing small items, tools, and the like.

Moreover, by extending the step from the side of the floor portion to the rear of the seat, the step can be widened and the boarding / exiting performance can be further improved.
Furthermore, since a storage space is provided between the subframe and the lower frame, harnesses, drive system components, auxiliary machines, and the like can be easily arranged between the subframe and the lower frame.

  In the invention according to claim 2, since the step is provided at substantially the same height as the lower frame, the step can be easily formed by projecting the step support member to the side of the lower frame.

In the invention according to claim 3, the step support frame includes a lower first side frame, a lower second side frame, and a lower third side frame that extend from the lower frame toward the vehicle side, and these lower first side frame, lower It consists of a U-shaped side U-shaped frame attached to the tip of each of the second side frame and the lower third side frame.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of a vehicle employing a floor structure according to the present invention. A vehicle 10 includes a body frame 11 including a front frame 12, a center frame 13, and a rear frame 14, and the front frame 12 has left and right front wheels. A steering member (steering shaft 17, handle 18 attached to the upper end of the steering shaft 17, etc.) for steering the front wheel 16 is attached to the center frame 13. 22 and a transmission 23 integrally attached to the engine 22), a fuel tank 24, left and right seats 25, 26 (only the reference numeral 25 on the front side is shown) is attached, and left and right rear wheels are attached to the rear frame 14. A rear wheel suspension (not shown) for suspending 27 can be attached and tilted. And a terrain vehicle fitted with loading platform 28.

  The center frame 13 includes a pair of left and right steps 31 and 31 (only the reference numeral 31 on the front side is shown) on which a passenger sits when getting on and off, and a floor 32 that is one step higher than the step 31. An occupant seated on the seats 25 and 26 puts his / her feet on the portion 32. Reference numeral 36 denotes a roll bar attached to the front frame 12 and the center frame 13, 37 denotes a drive shaft extending forward from the transmission 23, and 38 denotes a reduction case connected to the tip of the drive shaft 37.

  FIG. 2 is a plan view of the vehicle according to the present invention, in which a seat frame 41 is attached to the center frame 13 of the vehicle 10, and the seats 25 and 26 are supported by the seat frame 41 and below the seats 24 and 25. The power unit 21 is disposed between a pair of left and right lower side frames 42, 42 extending in the vehicle longitudinal direction, and the fuel tank 24 is extended in the vehicle width direction in front of the power unit 21 and below the seats 25, 26. Indicates placement.

FIG. 3 is a perspective view showing a vehicle body frame and a step frame according to the present invention.
The front frame 12 of the vehicle body frame 11 includes a front first cross member 51 attached to the front ends of the lower side frames 42, 42 and a pair of left and right front lower side frames 52, 52 extending forward from the front first cross member 51. A pair of left and right front first standing frames 53 and 53 raised from the front lower side frames 52 and 52, and a pair of left and right front second standing frames 54 and 54, and these A pair of left and right front intermediate frames 56, 56 connected to the respective front ends of the front first standing frame 53 and the second front standing frame 54, and a front second attached to the left and right front first standing frames 53, 53. Cross member 57 and left and right front second upright frames 54 and 54 A front third cross member 58 and a front fourth cross member 59 mounted across the front, a front fifth cross member 62 mounted across the left and right front intermediate frames 56, 56, and the front third cross member 58 And connecting frames 63, 63 attached between the front fifth cross members 62.

  The front lower side frame 52 is a member to which a front lower bracket 66 is attached, and the front lower bracket 66 and the lower portion of the front first upright frame 53 described above support a lower arm constituting a front wheel suspension.

  The front intermediate frame 56 is a member to which a front upper bracket 67 is attached, and the front upper bracket 67 and the upper part of the front first upright frame 53 support an upper arm constituting a front wheel suspension.

The center frame 13 includes a pair of left and right lower side frames 42, 42, a pair of left and right center standing frames 71, 71 raised from the rear of each of the lower side frames 42, 42, A pair of left and right bent frames 72, 72 attached to each of the center standing frames 71, a pair of left and right subframes 73, 73 attached to each of the bent frames 72 and the front second standing frame 54, and these The seat support posts 74 and 74 raised from the rear portions of the sub frames 73 and 73, the seat support bar 76 attached to the upper ends of the seat support posts 74 and 74, and the left and right sub frames 73 and 73 are attached. Pass to center first cross member 77 and left and right lower side frames 42, 42 The attached center second cross member 78, the center third cross member 81 attached to the left and right center upright frames 71, 71, and a pair of left and right connecting frames 82 attached to the rear portions of the center upright frames 71, 71. , 82, a pair of left and right connection brackets 83, 83 attached to the connection frame 82 to removably connect the center frame 13 to the rear frame 14, and a center fourth attached to the connection brackets 83, 83. Cross members 84 and 84 are included.
The seat support bar 76 is a member that supports the seats 25 and 26 through the seat frame 41 shown in FIG. 2 together with the left and right bent frames 72 and 72.

  The lower side frames 42 and 42 and the sub frames 73 and 73 are members to which a pair of left and right step frames 90 and 90 that support the step 31 (see FIG. 1) and the floor portion 32 (see FIG. 1) are attached.

  The step frame 90 includes a lower first side frame 91, a lower second side frame 92, and a lower third side frame 93 that extend from the lower side frame 42 toward the vehicle side, and the lower first side frame 91 and the lower second frame. From the side frame 92 and the U-shaped side U-shaped frame 94 attached to the respective distal ends of the lower third side frame 93, the side standing frame 96 raised from the middle portion of the lower third side frame 93, and the subframe 73 An L-shaped upper side L-shaped frame 97 extending to the vehicle side and extending rearward of the vehicle and having the tip connected to the side standing frame 96, and extending from the subframe 73 to the vehicle side and the tip to the upper side L-shaped frame 97 An upper side frame 98 coupled to the lower first side frame 91 A first support post 101, 101 mounted to pass the respective fine upper side L-shaped frame 97, and a second strut 102 and 102 Metropolitan mounted passing each of the lower second side frame 92 and the upper side frame 98.

The lower first side frame 91, the lower second side frame 92, the lower third side frame 93 and the side U-shaped frame 94 are members constituting the step support frame 103 on which the above-described step 31 is placed.
The sub frames 73 and 73, the upper side L-shaped frames 97 and 97, and the upper side frames 98 and 98 are members constituting the floor portion support frame 104 on which the floor portion 32 described above is placed.

  The rear frame 14 includes a pair of left and right rear upper frames 111 and 111 and a pair of left and right rear lower frames 112 and 112 that are attached to the connection frames 82 and 82 via connection brackets 83 and 83, and a rear upper frame 111 and a rear lower frame. A pair of left and right rear inclined frames 113, 113 attached to each of 112, and a pair of left and right rear standing frames 114, 114 attached to the rear end portions of the rear upper frame 111 and the rear lower frame 112, respectively. A rear intermediate first cross member 115 attached to the left and right rear inclined frames 113, 113, and a pair of left and right rear intermediate frames 116, 116 attached to the rear inclined frame 113 and the rear standing frame 114; Left and right rear upper frames 111, 111 The rear upper cross member 117 attached and attached, the rear lower first cross member 118 and the rear lower second cross member 121 attached to the left and right rear lower frames 112 and 112, and the left and right rear standing frames 114 and 114 The rear intermediate second cross member 122 is attached.

  The rear lower frame 112 is a member to which the rear lower brackets 126 and 127 are attached, and the rear lower brackets 126 and 127 support a lower arm that constitutes a rear wheel suspension.

  The rear intermediate frame 116 is a member to which rear upper brackets 131 and 132 are attached, and these rear upper brackets 131 and 132 support an upper arm constituting a rear wheel suspension.

FIG. 4 is a plan view showing the main part of the vehicle body frame according to the present invention, in which the left and right steps 31 and 31 and the floor 32 are shown by hatching.
Step 31 is a portion of the range from the upper side L-shaped frame 97 to the side U-shaped frame 94 outside the upper side L-shaped frame 97, and the front-rear length of the side-shaped U-shaped frame 94 in the vehicle longitudinal direction. 31a is located behind the seats 25 and 26.

  The floor portion 32 includes the left and right upper side L-shaped frames 97 in the vehicle width direction, and is an inner range thereof. In the vehicle front-rear direction, the front portion of the front frame 12 (see FIG. 1) is located in front of the fuel tank 24. It is a part of the range which makes the boundary with the dashboard which is located in the back of a vehicle from the front 2nd standing frame 54 (refer to Drawing 1) the front end. Since the fuel tank 24 bulges forward in the center at the center, the rear edge 32a of the floor portion 32 protrudes forward, but since there is a space between the seats 25 and 26, there is no concern that the occupant's feet will be particularly narrow.

FIG. 5 is a perspective view showing a step and a floor portion according to the present invention, and shows that the center frame 13 and the step frame 90 are provided with the step 31 and the floor portion 32.
Thus, by providing step 31 and a floor 32 that is one step higher than this step 31, it is better to step on step 31 and go to floor 32 than to go directly to floor 32. Getting on and off is easier.

  Further, the high floor 32 causes the harness, auxiliary equipment, and the like below the floor 32 and above the lower side frame 42 (that is, approximately between the subframe 73 and the lower side frame 42). A space 135 in which small items, tools, and the like can be stored can be formed.

  As described above with reference to FIGS. 1, 4 and 5, the present invention firstly supports the front wheel suspension and includes the front shaft 12 including the steering shaft 17 and the handle 18 as steering members, and the front frame. The lower side frames 42 and 42 as lower frames coupled to the rear portion of the twelve, and a seat frame 41 (see FIG. 2) provided on the upper side of the lower side frames 42 and 42 to support the seats 25 and 26, In the floor structure of the vehicle 10 in which a floor portion 32 for footrest is provided above the lower side frames 42, 42 and the steps 31, 31 for getting on and off are disposed outside the floor portion 32 in the vehicle width direction, the front frame 12 And the seat frame 41 (specifically, the front second upright frame 54 of the front frame 12 and the center frame 13) and sub-frames 73 and 73 for supporting the floor portion 32 at a position higher than the lower side frame 42, and supporting the step 31 on both sides of the lower side frames 42 and 42. By providing the support frames 103, 103, the floor portion 32 is raised one step higher than the step 31.

  The floor 32 is made one step higher than the step 31 and the seat surface position of the seats 25 and 26 is raised to improve the driver's field of view, and the step 31 can improve the ease of getting on and off the floor 32. . Further, by providing the sub frame 73 at a position higher than the lower side frame 42, a space 135 can be formed between the sub frame 73 and the lower side frame 42. In this space 135, a harness and a drive system component are provided. Auxiliary machinery and the like can be arranged, and a storage space for storing accessories, tools, and the like can also be secured.

The second aspect of the present invention is characterized in that, in the above configuration, preferably, step 31 is provided at substantially the same height as a lower side frame 42 as a lower frame.
Since the step 31 is substantially the same height as the lower side frame 42, a step support frame 103 (lower first side frame 91, lower second side frame 92, lower Step 31 can be easily formed by projecting the third side frame 93 and the side U-shaped frame 94.

The third aspect of the present invention is characterized in that, in the above configuration, preferably, step 31 is extended from the side of the floor portion 32 to the rear of the seats 25 and 26.
By extending the step 31 from the side of the floor 32 to the rear of the seats 25 and 26, the step 31 can be widened and the boarding / exiting performance can be further improved.

Fourth, the present invention is characterized in that, in the above-described configuration, a space 135 as a storage space is preferably provided between the subframe 73 and the lower side frame 42.
Since the space 135 is provided between the sub frame 73 and the lower side frame 42, harnesses, drive system components, accessories, and the like can be easily disposed between the sub frame 73 and the lower side frame 42.

  The floor structure of the present invention is suitable for a four-wheeled vehicle.

It is a side view of the vehicle which employ | adopted the floor part structure which concerns on this invention. 1 is a plan view of a vehicle according to the present invention. It is a perspective view which shows the vehicle body frame and step frame which concern on this invention. It is a top view which shows the principal part of the vehicle body frame which concerns on this invention. It is a perspective view which shows the step and floor part which concern on this invention.

DESCRIPTION OF SYMBOLS 10 ... Vehicle, 12 ... Front frame, 16 ... Front wheel, 17, 18 ... Steering member (steering shaft, steering wheel), 21 ... Power unit, 24 ... Fuel tank, 25 , 26 ... Seat, 31 ... Step, 32 ... Floor part, 32a ... trailing edge, 37 ... drive shaft, 41 ... seat frame, 42 ... lower frame (lower side frame), 73 ... subframe, 91 ... lower first side frame, 92 ... lower second side frame, 93 ... lower first 3 side frames, 94... U-shaped frame, 103... Step support frame, 135.

Claims (3)

A front frame (12) comprising a steering member (17, 18) to support the front wheel suspension, a lower frame bound to a rear portion of the front frame (12) (42), a sheet provided on left and right (25, 26) a seat frame (41) provided on the upper part of the lower frame (42) for supporting the lower frame (42 , 26) and below the left and right seats (25, 26) and above the lower end of the lower frame (42). A power unit (21) provided at a position overlapping the left and right seats (25, 26), and a drive shaft (37) extending forward from the power unit (21) , and above the lower frame (42) floor for placing feet (32) provided, was placed the steps for passenger in the vehicle width direction outer side of the floor (32) (31) vehicle In the floor structure 10),
A subframe (73) supporting the floor (32 ) is provided between the front frame (12) and the seat frame (41) and higher than the lower frame (42) , and the lower frame ( 42) by providing a step support frame (103 ) for supporting the step (31) on the side of the floor (32) , the floor (32) is raised one step higher than the step (31) ,
The step (31) extends from the side of the floor (32) to the rear of the seat (25, 26),
The drive shaft (37) is disposed in a storage space (135) provided between the sub frame (73) and the lower frame (42) in a side view,
A fuel tank (24) extending in the vehicle width direction is provided in front of the power unit (21) and below the left and right seats (25, 26). The fuel tank (24) expands forward in the center of the left and right width. The vehicle floor structure is characterized in that the rear edge (32a) of the floor (32) protrudes forward .   2. The vehicle floor structure according to claim 1, wherein the step is provided at substantially the same height as the lower frame. The step support frame (103) includes a lower first side frame (91), a lower second side frame (92), and a lower third side frame (93) extending from the lower frame (42) toward the vehicle side, The lower first side frame (91), the lower second side frame (92), and the lower third side frame (93) have a U-shaped side U-shaped frame (94) attached to the tip of each. The floor structure of a vehicle according to claim 2 , wherein the floor structure is a vehicle .

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