Vehicle

Abstract

The utility model relates to a kind of vehicles, comprising: the seat of passenger seating;A pair of side frames is arranged below the seat and extends along the front-rear direction of vehicle;And a pair of support frames connecting the seat with the pair of side frames.The seat comprises: the seat seat portion of passenger seating;Seat back portion is extended rearward and upward from the rear end of the seat seat portion;And a pair of sides is arranged in the seat seat portion and seat back portion two sides, connecting portion connecting seat with support frame is arranged on the pair of sides.Adopting the utility model, load can be inhibited to concentrate in seat seat portion and prevent seat cracking.

Description

Technical Field

[0001] The technology disclosed herein relates to vehicles. Background Technology

[0002] In conventional vehicles, a known structure for securing seats to the vehicle body involves placing the seat portion on a seat support extending from the vehicle frame, and then fixing the seat support to the seat via a connecting portion provided on the seat portion. For example, Japanese Patent Application Publication No. 8-119012 discloses a structure in which connecting holes are formed on the seat surface, and the seat is fixed to the seat support by inserting bolts.

[0003] However, in this traditional structure, the seat bears a significant load due to the weight of the occupants, acceleration and deceleration during driving, and lateral G-forces generated during cornering. As a result, stress concentration occurs at the connection points on the seat, potentially leading to cracking or deformation. To prevent this, the rigidity of the seat needs to be increased, which in turn increases the overall weight and cost of the seat. Utility Model Content

[0004] This invention addresses the aforementioned problems and aims to provide a vehicle capable of suppressing load concentration on the seat area and preventing seat cracking. Furthermore, it also aims to provide a vehicle that ensures adequate rigidity and support for occupants while achieving lightweight and low-cost seat structure.

[0005] The first technical solution is a vehicle, comprising: a seat for occupants to sit on; a pair of side frames disposed below the seat and extending along the front-rear direction of the vehicle; and a pair of support frames connecting the seat to the pair of side frames. The seat includes: a seat portion for occupants to sit on; a seat back extending rearward and upward from the rear end of the seat portion; and a pair of side portions disposed on both sides of the seat portion and the seat back, wherein connecting portions for connecting the seat to the support frames are provided on the pair of side portions.

[0006] The second technical solution is the vehicle according to the first technical solution, wherein the pair of support frames are respectively disposed at the front and rear of the side frame in the vehicle longitudinal direction, and the front and rear parts of the side of the seat are respectively connected to the corresponding support frame through the connecting part.

[0007] The third technical solution is the vehicle according to the first technical solution, wherein a flange portion for providing a connecting portion is formed on the side portion, and the flange portion is opposite to the upper end of the support frame. Attached Figure Description

[0008] Figure 1This is a perspective view of a vehicle according to an embodiment of the present utility model.

[0009] Figure 2 This is a side view of the seat showing the connection structure between the seat and the support frame. Detailed Implementation

[0010] The following is for reference Figure 1 and Figure 2 The embodiments of this utility model will be described in detail below. In the figures, arrow FR indicates the front of the vehicle, arrow UP indicates the top of the vehicle, and arrow LH indicates the left side of the vehicle. In the following description, unless otherwise specified, front-back, up-down, and left-right directions refer to the front-back direction, up-down direction, and left-right direction when facing the direction of travel, respectively.

[0011] like Figure 1 As shown, the vehicle 10 in this embodiment includes a seat 20 for occupants, a vehicle frame, i.e., a pair of side frames 12, disposed under the vehicle, and a pair of support frames 14A and 14B connecting the seat 20 and the side frames 12.

[0012] Side frames 12 are located at the lower part of the vehicle 10, extending along the longitudinal direction of the vehicle, and consist of a pair of left and right components. Each side frame 12 is formed from a high-rigidity steel tube or aluminum extrusion, with a rectangular or circular cross-section, and is arranged at predetermined intervals in the width direction of the vehicle. These side frames 12 are interconnected by crossbeams or the like at the front and rear ends, thereby ensuring the overall rigidity and impact resistance of the vehicle.

[0013] Support frames 14A and 14B connect the side frame 12 to the seat 20, supporting the seat 20 above the vehicle body. The front and rear support frames 14A and 14B are respectively positioned in front of and behind the seat 20. The support frames 14A and 14B are made of tubular or stamped material and have a triangular or inverted L-shaped structure to efficiently transfer loads to the vehicle frame during driving. Their lower ends are fixed to the upper surface of the side frame 12 by welding or bolting, and their upper ends are connected to the side portion 26 of the seat 20 via the connecting part 30 (described later). In this way, the seat 20 is securely connected to the side frame 12 at both the front and rear positions of the vehicle, forming a stable support structure.

[0014] Seat 20 is used to support occupants and may be constructed from a single molded body made of resin or metal. Seat 20 includes: a seat portion 22, a seat back 24, and a pair of side portions 26. The seat portion 22 is a horizontal or near-horizontal surface for supporting the occupant's buttocks; the seat back 24 extends upward and backward from the rear end of the seat portion 22 for supporting the occupant's back; the pair of side portions 26 are formed on both sides of the seat portion 22 and the seat back, standing upright like walls, for wrapping around the occupant's waist and back from both sides in the width direction of the vehicle, thereby maintaining a stable seating posture.

[0015] Furthermore, a flange 26A is formed on the outer side of the side portion 26 for connection with the support frames 14A and 14B. The flange 26A extends outward from the outer end of the side portion 26 and has a plate-like structure. Its surface faces the upper end of the support frames 14A and 14B to achieve a stable connection.

[0016] The seat 20 is connected to the support frames 14A and 14B via connecting portions 30 provided on the side 26. Each connecting portion 30 is formed by aligning the flange portion 26A on the side of the seat 20 with the mounting holes on the upper ends of the support frames 14A and 14B, and then inserting bolts and nuts or other connecting members 32 for fixation. The axis of the connecting member 32 extends along the front-rear direction of the vehicle, thereby allowing it to primarily bear shear forces.

[0017] When the occupant is seated in the seat 22, their body weight, as well as the acceleration / deceleration forces and lateral G-forces generated during travel, are input to the seat 20, but no vertical load concentration is formed on the main surface of the seat 22. The load is transmitted to the support frames 14A and 14B through the side 26, and then distributed to the entire vehicle body through the side frame 12.

[0018] In the vehicle 10 of this embodiment, when the occupant is seated, their weight and the load generated by acceleration, deceleration and lateral G during driving are transmitted along the following path: occupant → seat 22 → side 26 → flange 26A → support frame 14A, 14B → side frame 12.

[0019] This structure prevents vertical loads from concentrating on the seat portion 22, thereby significantly reducing stress on the main surface. Furthermore, since the connector 32 primarily bears shear force, its axial compressive and tensile stresses are relatively small, thus preventing fatigue failure of the connector 32 and the flange portion 26A.

[0020] This effectively prevents seat cracking, achieving lightweighting and cost reduction without excessively increasing the overall strength of the seat. Simultaneously, because the seat 20 is supported by two support frames 14A and 14B, it maintains excellent support rigidity even under vibrations or lateral forces during vehicle operation.

[0021] With the above structure, the vehicle 10 of this invention can avoid the load being concentrated in the seat area, and realize the load distribution through the side 26 and the support frames 14A and 14B, thereby preventing cracking or deformation of the seat area. In addition, even when using lightweight and low-cost materials, durability and support rigidity can be fully ensured, thereby achieving overall vehicle weight reduction and cost savings.

[0022] The vehicle structure of this utility model is applicable to various types of vehicles such as motorcycles, tricycles, and four-wheeled vehicles, and is particularly suitable for vehicle seat structures that require lightweight and high strength, such as racing go-karts.

Claims

1. A vehicle, characterized in that, include: The seats where passengers are seated; A pair of side frames are disposed below the seat and extend along the front-rear direction of the vehicle. and a pair of support frames that connect the seat to the pair of side frames. The seat includes: a seat portion for occupants to sit on; a seat back extending rearward and upward from the rear end of the seat portion; and a pair of side portions disposed on both sides of the seat portion and the seat back. A connecting portion for connecting the seat to the support frame is provided on the pair of sides.

2. The vehicle according to claim 1, characterized in that, The pair of support frames are respectively disposed at the front and rear of the side frame in the vehicle longitudinal direction, and the front and rear parts of the side of the seat are respectively connected to the corresponding support frames through the connecting part.

3. The vehicle according to claim 1, characterized in that, A flange portion for providing a connecting portion is formed on the side portion, and the flange portion is opposite to the upper end of the support frame.

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