Vehicle fender
By adopting a combined structure of kinetic energy absorber and extrusion guide in the car fender, the problem of the front door being squeezed after being impacted is solved, and the effectiveness of kinetic energy absorption and fender offset is achieved, which reduces maintenance costs and improves the convenience of door opening.
Patent Information
- Application Number
- PCT/CN2023/121107
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-25
- Publication Date
- 2025-04-03
AI Technical Summary
The existing car fenders are likely to cause the front door to be squeezed after being hit, resulting in damage to the door and difficulty in opening, and high maintenance costs.
An automobile fender is designed, adopting a combined structure of kinetic energy absorber and an extrusion guide. The kinetic energy absorber generates deformation and absorbs kinetic energy through right-angle bends. The extrusion guide guides the fender to move outward through the arcuate surface to avoid extrusion of the door body.
Effectively absorb kinetic energy, reduce the deformation range of the fender body, avoid the fender moving and extruding to the front side of the vehicle, reduce maintenance costs, and improve the convenience of opening the car door.
Smart Images

Figure CN2023121107_03042025_PF_FP_ABST
Abstract
Description
Automobile fender Technical Field
[0001] The present invention relates to the technical field of automobile parts, and more particularly to an automobile fender. Background Art
[0002] Currently, all automobile manufacturers are studying how to ensure the strength of the vehicle body while minimizing the damage to pedestrians after a collision between the vehicle and the pedestrian. Most collisions between pedestrians and vehicles occur at the front end of the vehicle. The fenders of the vehicle are located at the front end of the vehicle, on both sides of the hood, and above the tires. They are an important part of the vehicle's styling and are also the main area where pedestrians collide with the head of the vehicle. With the popularity of passenger cars, China has become a major consumer of automobiles. The cost of passenger car collision repairs is closely related to the crashworthiness of the low-speed collision structure. Therefore, in order to promote the safety classification of vehicle insurance and promote the refined development of vehicle model pricing, under the guidance of the China Insurance Association, the China Automotive Engineering Research Institute and the China Insurance Research Institute of Automotive Technology, based on comprehensive research and reference to international advanced experience, combined with the current status of China's insurance and vehicle safety technology, proposed the China Insurance Automotive Safety Index (C-IASI) test and evaluation system.
[0003] Existing automobile fenders, such as the one with application number CN202022357868.0, are anti-twisting and deformation automobile fenders, which include one end of the baffle being rotatably connected to the fender via a hinge, and the other end of the baffle being connected to the fender via a snap-fit connection. The bolt passes through the first fixing plate and the second fixing plate, and the diameter of the bolt is slightly smaller than the diameter of the through hole. Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention has a scientific and reasonable structure, is safe and convenient to use, and the existing fender is thickened, and a vertical steel plate is added in the middle of the fender to strengthen the strength of the fender. Sound insulation cotton is added to the fender to effectively reduce the noise generated by the tires. A spring is installed at the connection position of the fender to protect the fender from elastic deformation after a small collision and not deformed by external forces, thereby reducing the deformation and twisting of the fender due to external forces.
[0004] However, when a low-speed front collision occurs, the existing fenders often squeeze the front side doors, causing damage to the vehicle fenders and front doors, and deducting points from the gap between the closing parts. At the same time, the fenders often need to be replaced and the front side door sheet metal needs to be corrected, resulting in high repair costs. At the same time, the fenders that are easily displaced are also prone to getting stuck at the connection between the door and the body, making it difficult to open the door. Technical issues
[0005] The present invention aims to solve the technical problem in the prior art that the fender is easily squeezed by the front door after being hit, causing damage to the door and difficulty in opening.
[0006] The purpose and effect of the present invention are achieved by the following specific technical means:
[0007] The camshaft is connected to the rear frame by a plurality of springs, the springs being arranged on a circle with the springs being provided on the front frame and the plurality of springs being provided on the rear frame.
[0008] Furthermore, the kinetic energy absorber is made of aluminum and has a thickness of 2 mm to 4 mm. The kinetic energy absorber is configured as a whole to be continuously and vertically bent at right angles.
[0009] Furthermore, a mounting plug rod is connected to the side of the extrusion guide in contact with the fender body, and a plug slot matching the mounting plug rod is provided on the fender body, thereby ensuring the connection between the fender body and the extrusion guide.
[0010] Furthermore, the first hinge seat on the extrusion guide extends into the installation groove and is connected to the other end of the guide rod, and the extrusion guide and the first hinge seat on the fender body are staggered with each other.
[0011] Furthermore, a telescopic sleeve and a telescopic rod are installed between the side buffer strip and the extrusion guide, and the telescopic sleeve is sleeved on the outside of the telescopic rod.
[0012] Furthermore, a plurality of structures composed of the first connecting rods and the second connecting rods are equidistantly arranged between the longitudinal gap between the extrusion guide and the side buffer strip. Beneficial effects
[0013] An automobile fender has the following beneficial effects:
[0014] 1. A kinetic energy absorber is installed inside the fender body. The kinetic energy absorber is made of aluminum and has a thickness of between 2mm and 4mm. The kinetic energy absorber is arranged in a continuous and vertical right-angled manner. When the fender body is hit, it can deform at the right-angled bend of the kinetic energy absorber, thereby absorbing kinetic energy to the greatest extent, reducing the deformation range of the fender body, and preventing the fender body from moving and squeezing toward the front of the vehicle.
[0015] 2. An extrusion guide is installed on the left side of the fender main body, and the side where the fender main body and the extrusion guide contact each other is set with an arc surface. When the impact and extrusion range is large and the fender main body is driven to move toward the extrusion guide, the installation plug-in rod can be broken first, and then the fender main body can move outward along the arc surface of the extrusion guide, so that the fender main body can be prevented from squeezing the door body even under continuous impact. A mounting groove is opened on one side of the fender main body close to the extrusion guide, and a first hinge seat is installed inside the mounting groove, and the guide rod is connected to the first hinge seat. One side of the extrusion guide is provided with a first hinge seat identical to that on the fender main body, and extends into the mounting groove and is connected to the other end of the guide rod. The extrusion guide and the first hinge seat on the fender main body are staggered with each other. When the fender main body moves toward the extrusion guide, the first hinge seat can be pushed outward under the action of the inclined guide rod, thereby improving the offset efficiency of the fender after extrusion movement.
[0016] 3. A side buffer strip is installed on the left side of the extrusion guide, and a spring is installed between the side buffer strips installed on the left side of the extrusion guide. A clip is provided on the side buffer strip to connect with the car body, and a telescopic sleeve and a telescopic rod are installed between the side buffer strip and the extrusion guide. The telescopic sleeve is sleeved on the outside of the telescopic rod, which can connect the extrusion guide with the side buffer strip. When the extrusion guide is offset from the moving direction of the fender body, it can squeeze the spring between the buffer edge strip, thereby further absorbing the kinetic energy transmitted from the fender body, achieving the effect of zero contact with the front side of the vehicle, and improving the safety evaluation index. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG1 is an overall schematic diagram of the present invention.
[0018] FIG2 is a top cross-sectional view of the fender body of the present invention.
[0019] FIG3 is an enlarged schematic diagram of point A in FIG2 of the present invention.
[0020] FIG. 4 is a rear perspective view of a fender body according to the present invention.
[0021] FIG5 is an enlarged view of point B in FIG4 of the present invention.
[0022] FIG6 is a perspective view of a kinetic energy absorber according to the present invention.
[0023] In Figure 1-6: 1- fender body, 101- first connecting plate, 102- second connecting plate, 103- kinetic energy absorber, 104- mounting groove, 105- guide rod,
[0024] 2-extrusion guide, 201-installation plug rod,
[0025] 3-side buffer strip, 301-clip part, 302-baffle, 303-telescopic sleeve, 304-telescopic rod,
[0026] 4-first hinge seat, 5-second hinge seat. Implementation Method
[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0028] 1-6, a schematic diagram of the exploded structure and the planar structure of a car fender
[0029] A car fender includes a fender body 1, a first connecting plate 101 is provided on the right side of the fender body 1, and a second connecting plate 102 is provided on the lower side of the fender body 1. The second connecting plate 102 is arranged in an arc shape;
[0030] In a specific implementation, a kinetic energy absorber 103 is installed inside the fender body 1. The kinetic energy absorber 103 is made of aluminum and has a thickness of 2 mm to 4 mm. The kinetic energy absorber 103 is continuously and vertically bent at right angles.
[0031] In a specific implementation, an extrusion guide 2 is installed on the left side of the fender body 1, i.e., the side close to the vehicle door body. The side where the fender body 1 and the extrusion guide 2 contact each other is set as an arc-shaped surface. The side where the extrusion guide 2 contacts the fender body 1 is connected to a mounting plug rod 201. The fender body 1 is provided with a plug slot that matches the mounting plug rod 201, thereby ensuring the connection between the fender body 1 and the extrusion guide 2.
[0032] In a specific embodiment, a mounting groove 104 is formed on one side of the fender body 1 near the extrusion guide 2. A first hinge seat 4 is mounted inside the mounting groove 104. A guide rod 105 is connected to the first hinge seat 4. A first hinge seat 4 identical to that on the fender body 1 is provided on one side of the extrusion guide 2. The first hinge seat 4 extends into the mounting groove 104 and is connected to the other end of the guide rod 105. The extrusion guide 2 and the first hinge seat 4 on the fender body 1 are staggered.
[0033] In a specific implementation, a side buffer strip 3 is installed on the left side of the extrusion guide 2, a spring is installed between the side buffer strips 3 installed on the left side of the extrusion guide 2, a clamping piece 301 is provided on the side buffer strip 3 to be connected to the car body, a telescopic sleeve 303 and a telescopic rod 304 are installed between the side buffer strip 3 and the extrusion guide 2, the telescopic sleeve 303 is sleeved on the outside of the telescopic rod 304, and the telescopic rod 304 can move inside the telescopic sleeve 303, ensuring that the extrusion guide 2 can move while limiting its movement in the correct direction;
[0034] In a specific implementation, a structure composed of the first connecting rod 303 and the second connecting rod 304 is arranged in multiple groups at equal intervals between the longitudinal gap between the extrusion guide 2 and the side buffer strip 3, and a baffle 302 is arranged on each side close to the extrusion guide 2 and the side buffer strip 3, and the baffles 302 on both sides are partially overlapped.
[0035] Working principle:
[0036] A kinetic energy absorber 103 is installed inside the fender body 1. The kinetic energy absorber 103 is made of aluminum and has a thickness of 2 mm to 4 mm. The kinetic energy absorber 103 is continuously and vertically bent at right angles. When the fender body 1 is hit, it can be deformed at the right-angled bend of the kinetic energy absorber 103, thereby absorbing kinetic energy to the greatest extent, reducing the deformation range of the fender body 1, and avoiding the fender body 1 from moving and being squeezed toward the front of the vehicle. Then, an extrusion guide 2 is installed on the left side of the fender body 1. The side where the fender body 1 and the extrusion guide 2 contact each other is an arc-shaped surface. The extrusion guide 2 contacts the fender body 1. One side is connected with an installation plug rod 201, and the fender body 1 is provided with a plug slot that matches the installation plug rod 201. When the impact and extrusion range is large, driving the fender body 1 to move toward the extrusion guide 2, the installation plug rod 201 can be broken first, and then the fender body 1 can be moved outward along the arc surface of the extrusion guide 2, that is, away from the side of the vehicle, so that even under continuous impact, the fender body 1 can be prevented from squeezing the door body. A mounting groove 104 is opened on one side of the fender body 1 close to the extrusion guide 2, and a first hinge seat 4 is installed inside the mounting groove 104. The first hinge seat 4 is connected to the guide rod 105, and one side of the extrusion guide 2 is The first hinge seat 4 is provided on the fender body 1 and is the same as the first hinge seat 4 on the fender body 1, and extends into the mounting groove 104 and is connected to the other end of the guide rod 105. The extrusion guide 2 and the first hinge seat 4 on the fender body 1 are staggered. When the fender body 1 moves toward the extrusion guide 2, the first hinge seat 4 can be pushed outward under the action of the inclined guide rod 105, thereby improving the offset efficiency of the fender after the extrusion movement. Finally, a side buffer strip 3 is installed on the left side of the extrusion guide 2. A spring is installed between the side buffer strips 3 on the left side of the extrusion guide 2. A clip 301 is provided on the side buffer strip 3 to connect with the car body. The side buffer strip 3 A telescopic sleeve 303 and a telescopic rod 304 are installed between the extrusion guide 2. The telescopic sleeve 303 is sleeved on the outside of the telescopic rod 304, which can connect the extrusion guide 2 with the side buffer strip 3. At the same time, when the extrusion guide 2 is offset in the moving direction of the fender body 1, it can squeeze the spring between the buffer edge strip 3, thereby further absorbing the kinetic energy transmitted by the fender body 1, achieving the effect of zero contact with the front side of the vehicle. The side of the extrusion guide 2 close to the side buffer strip 3 is respectively provided with a baffle 302, and the baffles 302 on both sides are partially overlapped, which can ensure that mud and sand are prevented from entering between the extrusion guide 2 and the side buffer strip 3 during daily use.
Claims
1. A car fender, comprising a fender body (1), a first connecting plate (101), and a second connecting plate (102), characterized in that: A kinetic energy absorber (103) is installed inside the fender body (1); a guide component is installed on one side of the fender body (1) to deflect the displacement generated by the impact; a side buffer strip (3) for absorbing the impact kinetic energy is installed on the left side of the extrusion guide (2); a buffer mechanism is arranged between the side buffer strips (3) installed on the left side of the extrusion guide (2); baffles (302) are arranged on the sides of the extrusion guide (2) close to the side buffer strips (3), and the baffles (302) on both sides are arranged to partially overlap.
2. The automobile fender according to claim 1, characterized in that: The guide component comprises an extrusion guide (2) and a guide rod (105); a mounting groove (104) is provided on a side of the fender body (1) close to the extrusion guide (2); a first hinge seat (4) is installed in the mounting groove (104); the first hinge seat (4) is connected to one end of the guide rod (105); and a first hinge seat (4) identical to that on the fender body (1) is provided on one side of the extrusion guide (2).
3. The automobile fender according to claim 1, characterized in that: The kinetic energy absorber (103) is made of aluminum material, and the kinetic energy absorber (103) is arranged in a continuous right-angle bend as a whole.
4. The automobile fender according to claim 2, characterized in that: The first hinge seat (4) on the extrusion guide (2) extends into the installation groove (104) and is connected to the other end of the guide rod (105); the side where the fender body (1) and the extrusion guide (2) contact each other is provided with an arc-shaped surface; and the side where the extrusion guide (2) contacts the fender body (1) is connected to a mounting plug-in rod (201).
5. The automobile fender according to claim 1, characterized in that: A telescopic sleeve (303) and a telescopic rod (304) are installed between the side buffer strip (3) and the extrusion guide (2), and the telescopic sleeve (303) is sleeved on the outside of the telescopic rod (304).
6. The automobile fender according to claim 5, characterized in that: The buffer mechanism between the side buffer strips (3) installed on the left side of the extrusion guide (2) is a spring, and a structure consisting of the telescopic sleeve (303) and the telescopic rod (304) is arranged in multiple groups in the gap between the extrusion guide (2) and the side buffer strip (3).
Citation Information
Patent Citations
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CN103043018A
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CN208947426U