Anti-theft devices for vehicles

Abstract

To provide a vehicular anti-theft member that is able to prevent a CAN communication line from being externally accessed.SOLUTION: A vehicular anti-theft member 1 comprises: a base portion 10 attached to a headlight portion 120; and a shielding portion 20 extended from a rear end of the base portion 10 such that a connector portion of a CAN communication line 140 exposed to an inside space S of a fender portion 110 of a vehicle C and inserted into the headlight portion 120 is shielded from the inside space S of the fender portion 110.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an anti-theft device for a vehicle that is used to prevent theft of a vehicle equipped with a CAN system. [Background technology]

[0002] Conventionally, there have been many vehicles that use a CAN system, such as that disclosed in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6833143 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in recent years, there has been an increase in cases of vehicle thefts that exploit vulnerabilities in CAN systems. In other words, cases where vehicle control is taken over from an external source via the CAN communication line used in the CAN system and the vehicle is stolen have become a problem. Such thefts using CAN communication lines are often carried out via the CAN communication line connected to the vehicle's headlights.

[0005] An object of the present invention is to provide an anti-theft device for a vehicle that can prevent external access to a CAN communication line. [Means for solving the problem]

[0006] The present invention is a vehicle theft prevention device that is attached to a vehicle that has a control unit arranged on the passenger compartment side and a headlight unit that is controlled by the control unit via a CAN communication line, and that comprises a base unit that is attached to the headlight unit and a plate-shaped shielding unit that extends from the end of the base unit, and that, when the base unit is attached to the headlight unit, the connector unit (coupler unit) of the CAN communication line that is inserted into the headlight unit while being exposed to the inner space of the fender unit of the vehicle is shielded from the inner space of the fender unit by the shielding unit.

[0007] In this configuration, the connector portion of the CAN communication line, which is connected to the headlight portion and is easily accessible from the outside, is shielded from the outside, thereby effectively preventing vehicle theft. This vehicle theft prevention device can be attached to a vehicle after it has been sold, and is extremely effective in preventing theft. [Effects of the Invention]

[0008] The anti-theft member for a vehicle of the present invention has an excellent effect of being extremely effective in preventing theft. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an explanatory diagram of the vicinity of a fender portion of a vehicle to which an anti-theft device for a vehicle is attached; [Figure 2] FIG. 2 is a perspective view of the vehicle anti-theft member. [Figure 3] FIG. 10 is a perspective view showing another embodiment of an anti-theft member for a vehicle. [Figure 4] FIG. 2 is an explanatory diagram showing a fender portion where a rear end portion of a headlight portion is exposed. [Figure 5] FIG. 10 is an explanatory diagram showing a connector portion inserted into a headlight portion. DETAILED DESCRIPTION OF THE INVENTION

[0010] The following examples are provided to illustrate embodiments of the present invention. In the examples, the front-rear, left-right, and up-down directions are based on the front-rear, left-right, and up-down directions of a vehicle to which the vehicle anti-theft device is attached. It should be understood that the present invention is not limited to the examples described below.

[0011] Fig. 1 shows the periphery of a fender part 110 that houses a left front wheel 100 of a vehicle C. As shown in Fig. 1, a vehicle anti-theft device 1 is attached to a headlight part 120 that is exposed to an inner space S of the fender part 110 that houses the left front wheel 100 of the vehicle C.

[0012] 4, a connector portion 141 of a CAN communication line 140 connected to a control unit 130 that controls the electrical system of the vehicle C is attached to the rear end portion of the headlight unit 120. The vehicle anti-theft device 1 is attached to the lower end portion of the headlight unit 120, which shields the connector portion 141 from the inner space S of the fender portion 110, making it difficult to see and reach from outside the vehicle C.

[0013] 4 and 5, the connector 141 inserted into at least the headlight unit 120 is larger and has a more complex structure than a general-purpose connector, from the viewpoint of functionality and security. Therefore, as shown in Fig. 1, when inserted into the headlight unit 120 and attached, the lower end of the connector 141 is positioned to protrude downward from the lower surface of the headlight unit 120. Note that the connector 141 is a publicly known product, and therefore a detailed description of its structure will be omitted.

[0014] Next, the specific structure of the vehicle anti-theft device 1 will be described.

[0015] As shown in FIG. 2, the vehicle anti-theft device 1 includes a flat base portion 10 and a box-shaped shielding portion 20 extending from an end (rear end) of the base portion 10.

[0016] The base portion 10 has multiple (three) through holes 11 that penetrate through the thickness direction, and mounting screws 15 are inserted into the through holes 11 as fixing portions to attach it to the underside of the headlight portion 120.

[0017] On the other hand, the shielding part 20 has a bottom part 21 having a flat plate shape, a left side part 22 and a right side part 23 having a flat plate shape rising from both the left and right ends of the bottom part 21, and a rear part 24 having a flat plate shape rising from the rear end part of the bottom part 21. The base part 10 and the bottom part 21 are continuous with a step part 27 as a boundary, and the bottom part 21 is set as a lower step part with respect to the base part 10 as a reference.

[0018] The rear portion 24 is also partially provided with a notch 25 through which the CAN communication line 140 is inserted.

[0019] Next, the manner in which the vehicle anti-theft member 1 is attached will be described.

[0020] 1, the above-described vehicle anti-theft device 1 is attached to the lower end of the headlight unit 120 using a mounting screw 15. As a result, the left side portion 22 is disposed to the left of the connector unit 141, and the left side portion 22 is provided as a baffle plate between the space outside the vehicle C and the connector unit 141. In addition, the rear portion 24 is disposed to the rear of the connector unit 141, and the rear portion 24 is provided as a baffle plate between the space on the passenger compartment side and the connector unit 141.

[0021] When the vehicle anti-theft device 1 is installed, the connector portion 141 protrudes downward from the underside of the headlight portion 120 as described above, but the step portion 27 prevents the lower end of the connector portion 141 from interfering with the bottom portion 21.

[0022] The vehicle anti-theft member 1 has a structure that can be used on both the left and right sides, and can be used in the same way on the fender portion that houses the right front wheel (not shown) of the vehicle C.

[0023] The configuration described above makes it extremely difficult to contact the CAN communication line from the outside, and can effectively prevent theft using the CAN communication line.

[0024] In the above embodiment, the dimensions and shapes of each part can be freely selected as appropriate.

[0025] Furthermore, the shielding portion 20 may have a shape other than a box shape.

[0026] The vehicle anti-theft member 1 may also be configured with a member dedicated to the left front wheel and a member dedicated to the right front wheel. For example, the right side portion 23 may be omitted from the member dedicated to the left front wheel, and similarly, the left side portion 22 may be omitted from the member dedicated to the right front wheel.

[0027] Furthermore, the shielding portion 20 may be made of, for example, a net having holes or cutouts that a person's finger cannot be inserted through, as long as it is strong enough to prevent tampering such as destruction.

[0028] Also, as shown in FIG. 3, depending on the vehicle structure, the anti-theft member for vehicle 40 may not have the step portion 27 and the bottom portion 21 and the base portion 10 may be flush with each other. [Explanation of symbols]

[0029] 1,40 Anti-theft devices for vehicles 10 Base 11 Through hole 15 Mounting screws 20 Shielding part 21 Bottom 22 Left side 23 Right side 24 rear 25 Notch 27 Step 100 Left front wheel 110 Fender section 120 Headlight section 130 Control Unit 140 CAN communication line 141 Connector part C vehicle S interior space

Claims

[Claim 1] An anti-theft device for a vehicle that is attached to a vehicle having a control unit disposed in a passenger compartment and a headlight unit controlled by the control unit via a CAN communication line, a flat base portion attached to a lower portion of the headlight portion; a plate-shaped shielding portion extending from an end of the base portion; It is equipped with the shielding portion has a bottom portion, the base portion and the bottom portion are continuous with each other across a step portion, and the bottom portion is a lower step portion based on the base portion; Furthermore, the base portion is provided with a plurality of through holes, and mounting screws are inserted into the through holes as fixing portions to attach the base portion to the underside of the headlight portion, When the base portion is attached to the headlight portion, the lower end of the connector portion of the CAN communication line inserted into the headlight portion in a state where it is exposed to the inner space of the fender portion of the vehicle protrudes below the underside of the headlight portion, and the connector portion is shielded from the inner space of the fender portion by the shielding portion, and the formation of the step portion prevents interference between the lower end of the connector portion and the bottom. An anti-theft device for a vehicle.

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