JP3138654U - Anti-theft device - Google Patents

Abstract

An anti-theft device for preventing the theft of a transport machine easily and inexpensively is provided.
A fixed terminal having one end attached to a negative electrode terminal of a power battery, a movable terminal movable so as to be fitted to the fixed terminal, and a lock mechanism for controlling fitting of the fixed terminal and the movable terminal are provided. Locking with anti-theft device, fixed terminal and moving terminal have fitting locking part, anti-theft locking part for electrical connection and insulation by their fitting, detachment, and anti-theft locking part The mechanism is used to maintain its electrical connection or insulation.
[Selection] Figure 1

Description

  The present invention relates to an antitheft device for a power supply battery that is attached to a negative electrode post of a power supply battery and prevents theft of a device on which the power supply battery is mounted.

  Transportation machines such as automobiles, motorbikes, pleasure boats, etc. are used by starting the engine by supplying electricity from the installed battery to the cell motor.

For this purpose, the power battery and the cell motor are usually in an electrically connected state by operating a start key in the driver's seat, and the engine is started.
However, the engine is easily started and the transportation equipment is stolen by an unauthorized method such as directly connecting the electric wiring between the power battery and the cell motor.

Therefore, as a means for preventing the theft, a theft prevention system or a connector system having a control means using an electronic device such as a semiconductor element described in Patent Documents 1 to 3 has been proposed.
Furthermore, as a simpler antitheft method, there are a method of removing an electric wire terminal from the power battery and making it electrically insulated, or a method of removing the power battery itself from the transport machine.

Special Table 2000-505852 JP 2004-152543 A JP 2006-164706 A

However, the work of removing the wire terminal from the power battery as described above is performed by loosening the wire terminal mounting bolts attached to the electrode posts of the power battery in a narrow engine room where various devices are mounted. It is a difficult and troublesome task due to interference with other equipment and parts in the engine room.
In addition, the method of removing the power battery is generally difficult for an ordinary person to remove and carry because the installed power battery is heavy except for a motorcycle.

  On the other hand, the anti-theft system and connector system proposed in Patent Documents 1 to 3 are provided by being mounted in advance at the time of manufacture of the transport machine, and are retrofitted to a transport machine that is not mounted at the time of manufacture. It ’s difficult. Furthermore, such a system is expensive, and mounting on a low-priced transport machine causes an increase in price and reduces the competitiveness of the product.

  In view of such circumstances, the present invention has been made, and an object of the present invention is to propose an anti-theft device that can easily and inexpensively prevent the theft of a transport machine.

  The invention according to claim 1 controls a fixed terminal attached at one end to a negative electrode terminal of a power battery, a movable terminal movable so as to be fitted to the fixed terminal, and fitting between the fixed terminal and the movable terminal. An antitheft device comprising a lock mechanism, wherein the fixed terminal is a fixed terminal housing, a fixed connection piece electrically connected to a negative terminal mounting portion provided at one end of the fixed terminal housing, and the fixed terminal A guide recess for guiding the fitting between the movable terminal and the movable terminal; a fitting locking portion for retaining an electrical connection between the fixed terminal and the movable terminal provided in the guide concave portion; and an antitheft mechanism for retaining electrical insulation. The movable terminal includes a movable terminal housing, a wiring mounting portion provided at one end thereof, a moving connecting piece electrically connected to the wiring mounting portion and connected to the fixed connecting piece, Fit into the guide recess A guide projection for guiding the insertion and removal of the fixed terminal and the movable terminal, and a locking projection provided on the guide projection and locked to the fitting locking portion or the antitheft locking portion. The mechanism includes a support portion connected to the fixed terminal, an outer cylinder connected to the support portion, a cylinder accommodated in the outer cylinder and rotated in conjunction with the accommodated cylinder. A cam attached to the cylinder as described above, a fitting prevention wall provided on the moving terminal housing for suppressing insertion of the moving terminal into the solid terminal, and a key inserted into the cylinder to rotate the cylinder and the cam; Consists of.

  By attaching the anti-theft device according to the present invention to the power battery of a transport machine such as an automobile, a motorbike or a pleasure boat, the insulation state and the conduction state can be easily realized. When the transport machine is not used, the anti-theft device is placed in an anti-theft state, thereby preventing the start of the transport machine and greatly increasing the time required for the start of the transport machine.

Hereinafter, the antitheft device according to the present invention will be described with reference to the drawings.
1 to 3 show an embodiment of the present invention.
FIG. 1 is a diagram of an anti-theft device in the present embodiment, showing an anti-theft state, (a) is a plan view (partial cross section), (b) is a front view of the partial cross section, (c) is a fixed terminal, It is a figure explaining fitting of a movement terminal.
FIG. 2 shows an energized state, (a) is a plan view, and (b) is a front view of a partial cross section.

1 and 2, 1 is an antitheft device, 2 is a fixed terminal, 3 is a moving terminal, and 4 is a lock mechanism.
20 is a fixed terminal housing, 21 is a negative terminal mounting portion, 22a and 22b are guide recesses, 23a and 23b are fitting locking portions, 24a and 24b are anti-theft locking portions, 25 is a fixed connection piece, and 30 is movable. Terminal housing, 31 is an electric wire mounting portion, 32a and 32b are guide projections, 33a and 33b are locking projections, 34a and 34b are operation bars for operating the guide projections 32a and 32b, 35 is a moving connection piece, and 40 is A support portion of the lock mechanism, 41 is an outer cylinder, 42 is a cylinder, 43 is a cam, 44 is a key, and 46 is a fitting prevention wall.

  FIG. 1 shows a form of an anti-theft device 1 when the transport machine is stopped, that is, in an anti-theft state, and FIG. 2 shows an anti-theft device when the transport machine is moved or in a moving state. 1 is shown.

  The fixed terminal 2 of the anti-theft device 1 includes a negative electrode terminal attachment portion 21 of a power battery at one end, and a fixed connection piece 25 continuous with the negative electrode terminal attachment portion 21. The fixed connecting piece 25 is connected to the moving connecting piece 35 of the moving terminal 3 so that the mounted transporting machine can be moved while the antitheft device 1 is energized. Further, the fixed connection piece 25 is housed in the fixed terminal housing 20.

The fixed terminal housing 20 is provided with two guide recesses 22a and 22b for guiding the fitting with the moving terminal 3, and the guide recesses 22a and 22b include the fitting locking portions 23a and 23b and theft. Preventive locking portions 24a and 24b are respectively provided.
The guide convex portions 32a and 32b of the moving terminal 3 are inserted into and extracted from the guide concave portions 22a and 22b, and an energized state or an antitheft state is formed.

  The moving terminal 3 includes an electric wire attaching portion 31 for attaching wiring of a transport machine at one end, and a moving connecting piece 35 is provided continuously with the electric wire attaching portion 31 and is housed in the moving terminal housing 30.

The movable terminal housing 30 is provided with guide convex portions 32a and 32b that guide the fitting with the fixed terminal 2 so as to be inserted into and extracted from the guide concave portions 22a and 22b. One end of each of the guide convex portions 32a and 32b is supported by the moving terminal housing 30, and the other end is formed of an elastic piece that is an open end. The guide protrusions 32a and 32b are connected to the open ends of the guide protrusions 32a and 32b in the connected state with the engagement locking portions 23a and 23b of the fixed terminal 2 and in the anti-theft state with the anti-theft locking portions 24a and 24b. Locking projections 33a and 33b are provided.
Further, a fitting prevention wall 46 constituting the lock mechanism 4 that suppresses fitting with the fixed terminal 2 is provided at a predetermined position of the moving terminal housing 30.

The lock mechanism 4 includes a support portion 40 connected to the fixed terminal 2, and an outer cylinder 41 that houses a cylinder 42 and a cam 43. The lock mechanism 4 includes a fitting prevention wall 46 provided on the moving terminal 3.
The cylinder 42 and the cam 43 are connected so as to operate in conjunction with each other and are accommodated in the outer cylinder 41.

  2, the guide convex portions 32a and 32b of the moving terminal 3 are inserted into the guide concave portions 22a and 22b of the fixed terminal 2, and the locking projections 33a and 33b are locked with the fitting locking portions 23a and 23b. Thereby, the electrical connection by the fixed connection piece 25 and the movable connection piece 35 is completed, and it will be in an electricity supply state. In this case, the cam 43 is rotated and arranged at the position (y) so that the movable terminal 3 can be moved, fitted, and electrically connected to the fixed terminal 2.

  From the state of FIG. 2, the operation bars 34a and 34b are pressed from the outside, and the locking projections 33a and 33b are detached from the fitting locking portions 23a and 23b. Next, the moving terminal 3 is moved in the direction of the arrow, and the locking protrusions 33a and 33b are locked and fixed to the antitheft locking portions 24a and 24b. Next, the key 44 is inserted into the cylinder 42 and rotated to bring the cam 43 into the prevention position (x) facing the fitting prevention wall 46 of the moving terminal 3.

In the state shown in FIG. 1, the connection of the fixed connection piece 25 and the movement connection piece 35 is released, and the moving terminal 3 cannot be moved to the position of the connection state with the fixed terminal 2 by the cam 43. The insulation state is maintained. That is, the anti-theft state is entered.
Even in this anti-theft state, the fixed terminal 2 and the movable terminal 3 are structurally connected.
Although not shown in FIGS. 1 and 2, a retaining mechanism can be provided so that the moving terminal 3 is not pulled out and separated when the moving terminal 3 is pulled out from the fixed terminal 2.

  In this state, it is natural that the engine cannot be started even if the start key is operated from the driver's seat of a transport machine or the like, and even if the electric circuit of the cell motor is improperly connected to start the engine, The engine is in an insulated state directly under the battery and the engine cannot be started.

  FIG. 3 shows a state in which the antitheft device 1 of the present invention is attached to the power supply battery 10. The antitheft device 1 is formed by connecting and fixing the negative electrode terminal mounting portion 21 of the fixed terminal 2 to the negative electrode terminal 11. Indicates a connected state.

  As shown in FIG. 3, the antitheft device 1 according to the present invention is attached to the negative electrode terminal 11 of the power battery 10 so that it is not used for a long period of time such as at night when the transport machine is not used or during travel. In this case, the fixed terminal 2 and the moving terminal 3 are not fitted, that is, the connection state is released, and the negative terminal side of the power battery is electrically insulated.

  In this way, when trying to obtain a transport machine (not shown) in a state where the supply of electricity from the power supply battery is cut off illegally, it is necessary to search for the cause of not driving and make it ready for driving. Takes time, and the time required for this drive becomes extremely important. That is, the longer it takes, the higher the possibility that illegal activities will be seen. Therefore, the theft (illegal activity) itself of the transport machine must be canceled, and the anti-theft effect is high.

The figure which shows embodiment of the antitheft device of this invention, shows an antitheft state, (a) is a top view (partial cross section), (b) is a front view of a partial cross section, (c) is a fixed terminal, movement It is a figure explaining fitting of a terminal. It is a figure which shows embodiment of the antitheft device of this invention, and shows an energized state, (a) is a top view, (b) is a front view of a partial cross section. It is explanatory drawing which shows the mounting state to the power supply battery of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antitheft device 2 Fixed terminal 3 Moving terminal 4 Lock mechanism 10 Power supply battery 11 Negative electrode terminal 12 Positive electrode terminal 20 Fixed terminal housing 21 Negative electrode terminal attachment part 22a, 22b Guide recessed part 23a, 23b Fitting latching part 24a, 24b Theft Preventing locking portion 25 Fixed connecting piece 30 Moving terminal housing 31 Electric wire mounting portions 32a, 32b Guide convex portions 33a, 33b Locking protrusions 34a, 34b Operation bar 35 Moving connecting piece 40 Support portion 41 Outer cylinder 42 Cylinder 43 Cam 44 Key 46 Fitting prevention wall

Claims (1)

Theft prevention comprising: a fixed terminal for attaching one end to a negative electrode terminal of a power battery; a moving terminal movable so as to be fitted to the fixed terminal; and a lock mechanism for controlling fitting of the fixed terminal and the moving terminal. Equipment,
The fixed terminal is
A fixed terminal housing;
A negative terminal mounting portion provided at one end of the fixed terminal housing;
A fixed connection piece electrically connected to the negative electrode terminal mounting portion;
A guide recess for guiding the fitting between the fixed terminal and the movable terminal;
A fitting locking portion for holding electrical connection between the fixed terminal and the moving terminal provided in the guide recess, and an antitheft locking portion for holding electrical insulation;
The moving terminal is
A mobile terminal housing;
A wiring attachment provided at one end of the mobile terminal housing;
A moving connection piece electrically connected to the wiring attachment portion and connected to the fixed connection piece;
A guide convex portion that is fitted into the guide concave portion and guides insertion / extraction of the fixed terminal and the movable terminal;
Provided on the guide convex part, and provided with a locking projection locked to the fitting locking part or the anti-theft locking part,
The locking mechanism is
A support connected to the fixed terminal;
An outer cylinder connected to the support part;
A cylinder accommodated in the outer cylinder so as to rotate;
A cam attached to the cylinder for rotation in conjunction with the cylinder;
A fitting prevention wall provided in the moving terminal housing for suppressing insertion of the moving terminal into the fixed terminal;
A key for rotating the cylinder,
An anti-theft device characterized by that.

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