Automotive driving assistance devices

Abstract

The object of the present invention is to provide a driving assistance device for an automobile that can safely and quickly move a vehicle that is unable to drive. [Solution] The automobile driving assistance device 1 comprises a base 2 having a wheel mounting portion 23 on which the wheels of an automobile that has become unable to drive are placed, and running wheels 3 for driving the base. The running wheels 3 have a plurality of cylindrical free rollers 33 arranged in a ring around an axle 31. The free rollers 33 are rotatable and are journaled so that they can revolve around the axle 31, enabling stable movement even for large, heavy vehicles by reducing vibrations during driving.

Description

[Technical Field]

[0001] The present invention relates to a driving assistance device for an automobile, and more particularly to a driving assistance device for an automobile that can safely and quickly move an immobile vehicle. [Background technology]

[0002] When a disabled vehicle is removed from the scene, it is generally lifted using a crane or similar device, and then placed on the back of a tow truck for transportation.

[0003] For example, Patent Document 1 discloses a vehicle lifting device that has a rectangular support frame, connects the support frame to the vehicle wheels with rope hooks for suspension, and connects the support frame to a crane shackle with a wire to lift the vehicle.

[0004] Patent document 2 also discloses a vehicle lifting device that includes a main body portion that is positioned laterally at a predetermined distance from the outer surface of the wheel of an automobile, a contact arm portion that protrudes from the main body portion and abuts against the outer surface of the wheel, a support arm portion that protrudes from the main body portion at a position lower than the contact arm and supports the wheel from below, and a guide means for a suspension rope.

[0005] On the other hand, large vehicles such as freight trucks are heavy, and therefore cannot be hoisted using the vehicle lifting devices disclosed in the above-mentioned Patent Documents 1 and 2. For this reason, as shown in Patent Document 3, a method has been adopted in which a vehicle that has become unable to move is lifted using a floor jack or the like, and then a dolly with casters is attached to each wheel, and the vehicle is moved using the dolly. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Utility Model Registration No. 3043547 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-180454 [Patent Document 3] Japanese Patent Application Laid-Open No. 2014-076709 Summary of the Invention [Problem to be solved by the invention]

[0007] However, as disclosed in Patent Document 3, when moving a large vehicle using a cart with casters, the casters may get caught when going over a step, making it impossible to go over it smoothly, or the casters may be damaged when going over the step, which may cause problems during the moving operation.

[0008] The present invention has been made in view of the above points, and has as its object to provide a driving assistance device for an automobile that can safely and quickly move an immobilized vehicle. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the automobile driving assistance device of the present invention comprises a base base having a wheel mounting portion on which the wheels of the automobile are placed, and a running wheel that allows the base base to run in a horizontal position, the running wheel having an axle, an axle support portion that supports the axle so that it can rotate on its own axis, a plurality of cylindrical free rollers that extend in the width direction of the base base and are arranged in a ring around the axle, and a free roller support portion that supports the free rollers so that they can rotate on their own axis and is supported on the axle so that the free rollers can revolve around the axle.

[0010] Here, by providing a base stand with a wheel mounting section on which the wheels of a vehicle are placed, it is possible to place, for example, damaged wheels of a broken vehicle that is unable to run on the wheel mounting section.

[0011] Furthermore, by providing running wheels that allow the base stand to travel in a horizontal position, the disabled vehicle can be driven with its wheels placed on the wheel rests.

[0012] In addition, the running wheels have an axle and an axle support part that supports the axle so that it can rotate, so that the wheels of a disabled vehicle can withstand the load when placed on the wheel mounting part and the disabled vehicle is allowed to run, allowing the free rollers described below to rotate smoothly.

[0013] In addition, by having multiple cylindrical free rollers that extend across the width of the base and are arranged in a ring around the axle, the contact area between the free rollers and the ground is increased, so that even if a heavy, broken-down vehicle is placed on the wheel rest, it can run stably.

[0014] In addition, by supporting the free rollers so that they can rotate freely and by having free roller support parts that are supported on the axles so that the free rollers can revolve around the axles, each of the multiple free rollers can rotate on its own axis and revolve around the axles, thereby distributing the load of the broken-down vehicle and achieving smooth running.

[0015] Furthermore, when a pair of running wheels are installed in front and behind the base in the direction of travel, the contact area of ​​the running wheels with the ground is increased, which distributes the weight of the broken-down vehicle and allows for more stable travel.

[0016] Furthermore, when there are three or more free rollers around the axle, the free rollers are able to smoothly contact the ground as they revolve around the axle, thereby reducing vibrations during travel and enabling more stable travel.

[0017] In addition, when the wheel mounting section has a recess that opens upward and is rotatably supported on a vertical axis, the wheels of a disabled vehicle can be stably fixed to the wheel mounting section, thereby preventing the wheels from coming off the wheel mounting section while the vehicle is in motion.

[0018] Furthermore, even if the wheels to be placed on the wheel rest are fixed in a position that is offset from the direction of travel, the wheels of the broken-down vehicle can be easily placed on the wheel rest by rotating the wheel rest to align it with the direction of the wheels of the broken-down vehicle. [Effects of the Invention]

[0019] The automobile driving assistance device according to the present invention can move a vehicle that is unable to move safely and quickly. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a side view of an automobile driving assistance device according to an embodiment of the present invention; [Figure 2] 1 is a front view of an automobile driving assistance device according to an embodiment of the present invention; [Figure 3] 1 is a plan view of an automobile driving assistance device according to an embodiment of the present invention; [Figure 4] 1 is a diagram showing a state in which a vehicle is moved using an automobile driving assistance device according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, a driving assistance device for a vehicle according to an embodiment of the present invention will be described with reference to the drawings to facilitate understanding of the present invention. For ease of explanation, in each drawing, when the driving assistance device for a vehicle is installed on a horizontal surface, the direction facing upward is defined as "up," the direction opposite to "up" is defined as "down," the axial direction represented by "up" and "down" is defined as the vertical direction, and the direction perpendicular to the vertical direction is defined as the horizontal direction.

[0022] As shown in Figures 1 to 3, an automobile driving assistance device 1 according to an embodiment of the present invention is a device that assists the driving of a vehicle V that has difficulty driving itself due to damage to part of a wheel, and is composed of a base stand 2 on which the damaged wheel W of the vehicle V is placed, and a running wheel 3 that allows the base stand 2 to run in a horizontal position.

[0023] [Base] The base stand 2 is composed of a hollow rectangular frame body 21, a frame member 22 installed on the upper surface of the frame body 21 in the width direction, and a wheel mounting section 23 installed on the frame member 22 at approximately the center of the base stand 2.

[0024] The three frame members 22 are evenly spaced, and the wheel mounting portion 23 is supported on the middle frame member 22 so as to be rotatable about a vertical axis. The wheel mounting portion 23 is formed with a recess 24 that is open at the top, and the wheel W of the vehicle V is placed in the recess 24.

[0025] Here, the frame member 22 does not necessarily have to be provided, and instead of the frame member 22, a top plate capable of covering the entire upper surface of the frame body 21 may be provided.

[0026] Furthermore, the wheel mounting portion 23 does not need to be rotatably supported by the frame member 22. However, because the wheel mounting portion 23 is rotatably supported by the frame member 22, even if, for example, the wheel W of the vehicle V is unable to travel with a predetermined turning angle in either the left or right direction, the wheel mounting portion 23 can be rotated to match the turning angle of the wheel W, and the wheel W can be placed on the wheel mounting portion 23.

[0027] Furthermore, the wheel mounting portion 23 does not need to have the recess 24 that is open at the top. However, by forming the recess 24, it is possible to prevent the wheel W from shifting left and right, or forward and backward, by placing the wheel W in this recess 24. Therefore, there is no risk of the wheel W coming off the wheel mounting portion 23 due to vibrations or the like when the vehicle V is traveling, and safety when the vehicle V is traveling can be improved.

[0028] A plurality of hooks 25 (three at the front and three at the front in FIG. 2) are installed in the front-rear direction of the frame body 21. A towing wire is attached to the hooks 25, and the hooks 25 are connected to a towing vehicle (not shown) that tows the vehicle V. A fixing wire can also be connected to the hooks 25 to fix the wheels W of the vehicle V placed on the wheel mounting portion 23.

[0029] [Running wheels] The running wheels 3 have the function of allowing the base platform 2 to travel while maintaining a horizontal position when placed on the ground, and are composed of an axle 31, an axle support portion 32, free rollers 33, and a free roller support portion 34. In this embodiment of the present invention, two running wheels 3 are installed in front and behind the base platform 2 in the traveling direction.

[0030] It is not necessary for two running wheels 3 to be installed in the front-to-rear direction of the base 2, but one, or three or more may be installed. Even when multiple running wheels 3 are installed, the structure of each running wheel is the same, so in the following explanation, the structure of one running wheel 3 will be explained as a representative example.

[0031] A pair of axle support parts 32 are fixed to the frame member 22 with bolts and nuts on both ends in the width direction on the underside of the base 2. Axle mounting holes (not shown) are formed in the axle support parts 32, and both ends of the axle 31 are inserted into these axle mounting holes to be rotatably supported.

[0032] The free rollers 33 that come into contact with the ground are cylindrical bodies with a length that is approximately the same as the width of the base, and are arranged in a ring shape around the axle 31.

[0033] In the embodiment of the present invention, five free rollers 33 are arranged evenly around the axle 31 in an annular fashion, but the number of free rollers 33 is not necessarily limited, and the number of free rollers 33 can be changed as appropriate depending on the diameter, length, etc. of the free rollers 33 used. Note that in order to reduce vibration when the free rollers 33 come into contact with the ground and achieve stable running, the free rollers must come into contact with the ground without interruption, and in this case, it is preferable to arrange at least three or more free rollers 33.

[0034] The free rollers 33 are rotatably supported at both ends by a pair of free roller support parts 34 installed on both ends of the free rollers 33. The free roller support parts 34 are rotatably supported by the axles 31.

[0035] With the above configuration, when the free roller support portion 34 rotates, the free rollers 33 arranged annularly around the axle 31 can revolve around the axle 31, and the free rollers 33 themselves can also rotate on their own axes.

[0036] In this way, the free rollers 33 rotate and revolve while in contact with the ground during travel, reducing vibration during travel and effectively dispersing the load even when wheels of a large vehicle with a heavy weight are installed. Therefore, there is no risk of damage to the base 2 or running wheels 3 when the vehicle V is travelling, and stable travel can be achieved even on rough roads.

[0037] Next, a method of using the automobile driving assistance device 1 will be described with reference to Fig. 4. When installing a wheel W of a vehicle V on the automobile driving assistance device 1, first, the wheel W that is unable to drive is jacked up using a jig such as a jack.

[0038] With the wheel W jacked up, the automobile driving assistance device 1 is installed below the wheel W. At this time, if the wheel W has a turning angle to the left or right, the wheel mounting portion 23 is rotated by a predetermined angle to match the turning angle of the wheel W.

[0039] Once the positions of the wheel W and the wheel mounting portion 23 have been adjusted, the vehicle is jacked down and the wheel W is placed on the wheel mounting portion 23. At this time, if necessary, the base 2 and the wheel W may be fastened together using a fixing wire R1.

[0040] Then, one end of the towing wire R2 is connected to the hook 25, and the other end of the towing wire R2 is connected to a towing vehicle (not shown), thereby completing the preliminary preparations for towing the vehicle V. The towing wire R2 may also be connected to a vehicle body-side hook (not shown) installed on the vehicle V.

[0041] Once the above preparations are complete, the disabled vehicle V is driven by the towing vehicle to the specified destination. During driving, the free rollers 33 in contact with the ground repeatedly rotate and revolve, effectively dispersing the load of the towing vehicle V while it is driving and reducing vibrations, thereby preventing damage to the automobile driving assistance device 1 or the wheels W from coming off the tracks due to vibrations, thereby achieving stable driving.

[0042] As described above, the automobile driving assistance device according to the present invention is capable of moving a vehicle that is unable to move safely and quickly. [Explanation of symbols]

[0043] 1. Automobile driving assistance devices 2 base stand 21 Frame 22 Frame members 23 Wheel rest 24 recess 25 Hook 3 Running wheels 31 axles 32 Axle support part 33 Free Roller 34 Free roller support part V vehicle W wheels R1 Fixing wire R2 Towing Wire

Claims

1. A base, a running wheel that causes the base stand to run in a horizontal position; The base table has a frame body that supports the running wheels, and a wheel mounting portion on the upper surface of the frame body that mounts only one wheel of the automobile, the wheel mounting portion having a recess that opens upward and is supported rotatably around a vertical axis relative to the frame body, The running wheel has an axle, an axle support part that supports the axle rotatably, a plurality of cylindrical free rollers that extend in the width direction of the base and are arranged in a ring around the axle, and a free roller support part that supports the free rollers rotatably and is supported by the axle so that the free rollers can revolve around the axle. Driving assistance device for automobiles.

2. The running wheels are installed in pairs at the front and rear of the base in the running direction.

2. The driving assistance device for an automobile according to claim 1.

3. The free rollers are provided around the axle in three or more numbers.

3. The driving assistance device for an automobile according to claim 1 or 2.

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