car anti-theft devices

Abstract

To prevent theft of a vehicle by locking a brake pedal 30.SOLUTION: A box body is made and an opening 4 is provided on one surface of the box body 2. A brake pedal 30 is inserted through the opening 4, and the brake pedal 30 is fixed to the interior of the box body 2. Fixture of the brake pedal 30 is used for a fixing device 10 configured to move lower lock arms 14 disposed in the box body 2. The fixing device 10 comprises: a pair of standing wall surfaces 11, 11 standing on a bottom surface 5; a rotary shaft 12 which is laterally disposed between the standing wall surfaces 11, 11 and may rotate; and the lower lock arms 14, 14 fastened to the rotary shaft 12. The pedal 30 inserted into the fixing device 10 is fixed by swinging of the lower lock arms 14, 14.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an anti-theft device for an automobile that covers a pedal device of an automobile and restricts depression of the pedal device. [Background technology]

[0002] There are various types of anti-theft devices for parked automobiles, such as those that detect an intruder entering the automobile and sound an alarm, those that attach restraints to the automobile's wheels, etc. JP 2002-178878 (Patent Document 1) also describes a device that prevents theft by restraining a device necessary for driving that is installed in the driver's seat.

[0003] The anti-theft device disclosed in Patent Document 1 covers the pedal device, has an engaging device that engages with the pedal device when in use, and uses a box-shaped member supported on the floor or wall to restrict movement of the pedal device. In cars with automatic transmissions, the engine is started by depressing the brake pedal; if the brake pedal cannot be depressed, the engine will not start, which serves as an anti-theft measure.

[0004] Also, if the accelerator pedal is not depressed, the engine's rotation speed will not increase and operation will be impossible. Naturally, in a manual transmission vehicle, the engine will not be able to operate unless the clutch pedal is depressed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-178878 Summary of the Invention [Problem to be solved by the invention]

[0006] The above-mentioned known patent documents use a box-shaped cover body, which is made up of two cylindrical members with a horizontal joint surface and is clamped via this joint surface. However, the cover body must be spread out on the floor of the vehicle under the instrument panel before the pedal can be clamped, which causes interference with other devices and makes installation difficult.

[0007] Even if it is attached, the joint surface of the box-shaped cover body is clearly visible, and if a tool such as a crowbar is inserted into that part, the cover body can easily be destroyed, so theft prevention effect cannot be expected.

[0008] To provide an anti-theft device for automobiles which covers and fixes the pedals, can be easily installed even in a narrow space under the driver's seat, and has a structure in which the fixing device disposed inside is difficult to destroy from the outside.

[0009] For this reason, the automobile theft prevention device of this invention comprises a box body with a space inside and an opening on one side of the box body for inserting and removing the pedal, a lower locking arm located inside the box body that restrains the pedal, a fixing device whose base end is fixed to a rotating shaft and which rotates around this rotating shaft as a fulcrum, and the rotating shaft is supported by a pair of vertical wall surfaces located inside the box body and is rotated by a keyed locking lever located on the outside of the box body (Claim 1).

[0010] The car owner places the box by its handle under the instrument panel inside the vehicle, faces the opening toward the engine compartment, and inserts the pedal through the opening. Then, they rotate the keyed lock lever on the outside of the box (on the right side in this example), which swings the internal lower lock arm and secures the pedal inside the box from below. This secures the pedal to the fixing device inside the box via the lower lock arm.

[0011] The box is made of a relatively hard metal material and is not easily broken. Also, the opening faces the engine compartment and is blocked by the floor (fireboard), so tools cannot be inserted from that direction. In addition, a fixing device is installed inside the box, and a pair of vertical walls are erected to support the lower locking arm and the rotating shaft that supports the lower locking arm. Therefore, simply destroying the box makes it impossible to move the lower locking arm, providing a high level of theft prevention.

[0012] Furthermore, the box has a double structure in which the pair of upright walls are erected on the inside of the bottom at a distance, and the rotating shaft is attached between the upright walls, and a lower lock arm stopper that restricts the rotational position of the lock arm and an insertion position restricting lever that restricts the pedal insertion position are horizontally mounted between the upright walls. This structure makes the anti-theft device resistant to sabotage by thieves. That is, the pair of upright walls support the lower lock arm with the rotating shaft that rotates it, and then the insertion position restricting lever that restricts the rotation range is horizontally mounted and firmly maintained by a fixing device.

[0013] Furthermore, in order to improve the tightness of the box body to the vehicle, a gap adjustment part that moves in conjunction with the keyed lock lever is provided on the bottom opening side of the box body, which spreads outward and works when locked, preventing the box body from rattling inside the vehicle and improving the anti-theft effect.

[0014] The present invention is of course applicable not only to brake pedals but also to clutch pedals and accelerator pedals, and the pedals are hereinafter described as including these pedals. [Effects of the Invention]

[0015] This invention provides an anti-theft device that reliably locks the pedals that contribute to the running of a vehicle, and is also resistant to sabotage. The box that makes up the anti-theft device is made of a hard metal material, so it cannot be easily cut open with tools. Even if the anti-theft device is touched, it will not affect the brakes that are restraining it.

[0016] The double-layered (thick) construction of the box means it cannot be disassembled with a sander or reciprocating saw. The pedal can be secured with a lower locking arm, and when locked, it can be pressed down from the back. Even if the box is pressed down from above or pried open, a space is created above the pedal, preventing force from being applied to the pedal, making it impossible to press down on. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view of an automobile anti-theft device according to the present invention; [Figure 2] 1 is a perspective view of a fixing device to be assembled inside a box according to the present invention. [Figure 3] 10 is an explanatory diagram of a state in which the pedal is inserted into the box of the automobile anti-theft device. FIG. [Figure 4] 10 is an explanatory diagram of a state in which the lower lock arm is swung to fix the pedal to the box body. [Figure 5] 1 is an explanatory diagram showing the state in which the automobile anti-theft device is brought under the automobile instrument panel and set with the opening facing the pedal. [Figure 6] 10 is an explanatory diagram showing a state in which a pedal is inserted through the opening. [Figure 7] 1 is an explanatory diagram of the state in which the door is locked and fixed. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. [Example]

[0019] Fig. 1 is a perspective view of an automobile anti-theft device 1, and Fig. 2 is a perspective view of a fixing device 10 placed inside the same. The automobile anti-theft device 1 is a rectangular box 2 made of a hard metal such as iron, painted entirely yellow. It is relatively heavy, measuring 30 cm in length, 20 cm in width, and 20 cm in height, and has a handle 3 on the top for carrying.

[0020] One surface (front) of the box body 2 is provided with a square opening 4. This opening 4 is approximately 12-13 cm in length and width, and is large enough to allow a pedal (not shown) to be inserted through this opening 4. The bottom surface 5 of the box body 2 is a component of the fixing device 10, which will be described below.

[0021] The fixing device 10, as shown in Figure 2, has a pair of standing walls 11, 11 spaced apart from each other on the bottom surface 5 of the box body 2. The horizontal distance between the two walls is wider than the width of the pedal, and the pair of standing walls 11, 11 are also spaced apart from the outer surface of the box body 2. The bottom surface 5 also serves as the bottom surface 5 of the box body 2 .

[0022] The rotary shaft 12 is horizontally mounted between the vertical wall surfaces 11 and is rotatable. This rotary shaft 12 is rotated by a lock lever 23 with a key, which will be described below. The base ends of lower lock arms 14, 14 that restrain the pedals are fixed to this rotary shaft 12. Therefore, as the rotary shaft 12 rotates, the lower lock arms 14, 14 are moved about 90 degrees around the rotary shaft 12 as a fulcrum, and are structured so that their upper parts come into contact with a horizontally mounted lower arm stopper 15.

[0023] Furthermore, the rotating shaft 12 is connected to a gap adjustment unit 18 constituting the bottom surface 5 via a link mechanism 17, and swings around mounting shafts 19, 19 at the left end of the bottom surface 5 as a fulcrum. That is, when the rotating shaft 12 rotates counterclockwise, the gap adjustment unit 18 swings clockwise around the mounting shafts 19, 19 as a fulcrum, and is moved in a direction that increases the height dimension.

[0024] A keyed lock lever 23 rotates the rotary shaft 12 from the outside, and the rotation is transmitted via a shaft core 20 and a link mechanism 21. That is, as shown in Figures 1 and 2, the lower lock arms 14, 14 are in the state before the automobile anti-theft device 1 is inserted over the pedal of the vehicle body, and the opening 4 is fully open.

[0025] When the keyed lock lever 23 is in the vertical position as shown in Figure 1, the lower lock arms 14, 14 are in the lowest position (shown in Figures 1 and 2), and when the keyed lock lever 23 is rotated 90 degrees to the horizontal position, the lower lock arms 14, 14 are in the highest position (Figure 4). When the keyed lock levers 23, 23 are in the horizontal position, the lever 23 is stored in the storage recess 25 of the box body 2.

[0026] In the above-described configuration, an example of how the present automobile anti-theft device 1 is used will be described with reference to FIGS. First, the automobile anti-theft device 1 is placed under the driver's seat of the vehicle with the opening 4 side facing the pedal (fireboard side) as shown in Figure 5. This state is shown in Figure 1.

[0027] Then, holding the handle 3, insert the pedal 30 through the opening 4. Then, as shown in Fig. 6 and as shown in Fig. 3 as an illustration of the cross section, the pedal 30 is inserted into the space 10a in the fixing device 10. This state is shown in Fig. 6.

[0028] Next, as shown in Figure 7, the keyed lock lever 23 is moved clockwise, and the lower lock arm 14 is moved counterclockwise around the rotation shaft 12 as a fulcrum. This causes the lower lock arm 14 to rotate downward to a position where it supports the pedal 30. The tip 14a then abuts against the lower lock arm stopper 15. This closes the space 10a, preventing the pedal 30 from being depressed downward. However, movement of the pedal 30 in the direction opposite to the depression is permitted, and downward movement from outside the box body 2 does not cause the pedal 30 to move upward and be depressed. The reference numeral 27 has a protrusion that restricts the left-right movement of the pedal 30 when the pedal 30 is inserted into the space 10a through the opening 4. [Explanation of symbols]

[0029] 1. Car anti-theft devices 2 box body 3 handle 4 Openings 5 Bottom 10 Fixation device 11 Standing wall 12 Rotation axis 14 Lower lock arm 15 Lower lock arm stopper 18 Gap adjustment part 20 Axis of keyed lock lever 23 Lock lever with key 24 keys 30 pedals 32 Vehicle floor

Claims

[Claim 1] The device comprises a box body having an internal space and an opening on one side of the box body for inserting and removing a pedal, a lower lock arm located inside the box body for restraining the pedal, a fixing device having a base end of the lower lock arm fixed to a rotation shaft and rotating the arm around the rotation shaft as a fulcrum, and the rotation shaft is supported by a pair of vertical walls located inside the box body and rotated by a lock lever with a key located on the outside of the box body. The box body has a double structure in which the pair of upright walls are erected on the bottom surface at an interval on the inside, and the rotation shaft is attached between the upright walls, and a lower lock arm stopper that restricts the rotation position of the lower lock arm and an insertion position restriction lever that restricts the insertion position of the pedal are horizontally installed between the upright walls. An automobile theft prevention device characterized in that a gap adjustment part is provided on the bottom surface of the box body toward the opening, and is moved in a direction to increase the height dimension in conjunction with the keyed lock lever.

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