A security device for preventing unwanted attachment to a trailer coupler. The trailer hitch lock is formed by a lock body with notched arms and a lock bar that engages the notched arms of the lock body. The lock body engages the coupler mechanism of a trailer hitch and the lock bar secures the trailer hitch with a pad lock.

The present system generally relates to a tamper resistant cap that prevents unwanted access to a semi-tractor trailer's 7 ways connection. The system includes a controller that can be operated remotely to transmit signals to an actuator within the cap. The actuator operates a lock to secure the cap in the closed position and selectively unlock the lock to allow the cap to be opened.

The apparatus is a trapped key safety interlock device for use with a coupling that comprises a body provided with a face seal, a rim on one side and a projecting spur on the diametrically opposite side. The safety device includes a coupling part (201) which is complimentary to the said coupling (102) and which comprises a body portion having a rim portion (207) on one side for engagement with the spur of the said coupling and having a spur portion (206) on the diametrically opposite side for engagement with the rim of the said coupling (102). The rim portion accommodates a release mechanism (16, 18) for selectively enabling and disabling a key retention mechanism within the device. The key retention mechanism has a key retention condition and a key releasable condition, wherein the release mechanism comprises a primary release mechanism (16) and a secondary latching mechanism (18) resisting movement of the primary release mechanism until it is actuated itself. The method uses this apparatus as the safety device can prevent a vehicle releasably attached to a loading bay by the safety interlock device from being driven away from the loading bay until released using the safety interlock's release procedure.

An accessory (200) comprising a collar and a cable (214), providing for secure attachment of a trailer to a tow hitch (19) of a towing vehicle. The collar comprises a first collar member (122) and a second collar member (124) which are in the form of plates which are hingedly connected at one end and releasably locked at an opposite end around a neck (20) of the tow hitch. The accessory includes a lock (236) for locking an end of the cable (214) to the collar members (122; 124) when the collar members (122; 124) are closed around the neck (20) of the tow hitch. Prior to locking the cable (214) to the collar members (122; 124), the cable (214) is passed through a handle formation (25) of trailer coupler (19) of the trailer such that after locking the cable (214) to the collar members (122; 124), the trailer is securely attached to the tow hitch.

Devices and systems for securing and locking tractor trailer support legs in the down position are described herein. A securing pin passing through one of the support legs of a trailer while in the down position prevents the trailer legs from being raised. The pin can be locked in place such that only authorized users may remove the pin, raise the support legs, and move the trailer. A variety of kits for retrofitting existing trailers with securing devices are also provided.

The present invention relates to a trailer landing gear leg lock device that prevents the unauthorized retraction of a trailer landing gear leg to prevent a trailer from being stolen. The lock device is further comprised of two hinge-connected halves that can be placed around the landing gear leg of a trailer, wherein the halves can then be locked together via a locking mechanism. In differing embodiments of the lock device, the locking mechanism may be secured by a plurality of housings and compartments, as well a plurality of additional locks and lock covers. The device may further comprise a plurality of other theft resistant devices and accessories.

The invention relates to a locking arrangement for a means of transport to be towed, such as a trailer, a tow-behind cart, or the like. A locking arrangement is intended to prevent a ball clamp, included in a device to be towed, such as in its drawbar, from being coupled to a hitch ball included in a towing vehicle, said locking arrangement including at least mechanical locking elements for preventing the ball clamp from being coupled to the hitch ball. The locking arrangement includes electrical locking elements for preventing/enabling the coupling of the ball clamp to the hitch ball electrically on a remote operation principle.

The present system generally relates to a tamper resistant cap that prevents unwanted access to a semi-tractor trailer's 7 ways connection. The system includes a controller that can be operated remotely to transmit signals to an actuator within the cap. The actuator operates a lock to secure the cap in the closed position and selectively unlock the lock to allow the cap to be opened.

The present invention is a vehicle or trailer anti-theft device including electro-mechanical means and a temporary electrical power supply. The temporary electrical power supply acts momentarily upon the electro-mechanical device, thereby causing it to move into an activated condition. In its activated condition, it acts upon either on at least one wheel of the trailer, or the vehicle's parking brake system, to lock the at least one wheel, and remains in its activated condition without the need for any external power supply until such time as the electro-mechanical device is activated or re-connected to the temporary electrical power supply whereby the power supply is able to act momentarily upon the electro-mechanical device, and return said device to its deactivated condition, thereby causing the at least one wheel to be unlocked or the vehicle park brake to deactivate.

An idling stop control device includes an authenticator, a storage, a getting-off detector, and an engine restart permitter. The authenticator is installed in a vehicle, performs authentication via a wireless communication with a mobile device, and repeatedly performs, while the vehicle travels, an authentication operation at predetermined intervals. The storage stores result and time of authentication as the authentication history during travel. The engine restart permitter determines permission or prohibition of restart of the engine in accordance with the authentication history and getting-off information, permits restart of the engine when the authentication is successful and permits, in a case where the authentication fails, restart of the engine when a history of success of authentication has been stored in the storage during travel and the getting-off is not detected after the authentication has been successful.