GB2572251A - King Pin Lock - Google Patents
King Pin Lock Download PDFInfo
- Publication number
- GB2572251A GB2572251A GB1901706.0A GB201901706A GB2572251A GB 2572251 A GB2572251 A GB 2572251A GB 201901706 A GB201901706 A GB 201901706A GB 2572251 A GB2572251 A GB 2572251A
- Authority
- GB
- United Kingdom
- Prior art keywords
- king pin
- cavity
- pin lock
- lock
- locking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/08—Fifth wheel traction couplings
- B62D53/0842—King pins
- B62D53/085—King pins fitted with anti-coupling devices, pivotal or retractable king pins, e.g. to prevent theft
Abstract
A king pin lock 2 is provided for preventing the unauthorised attachment of a fifth wheel coupling to a king pin 38. The king pin lock comprises a body 9 with a cavity 16 configured for receiving king pin 38, where the axis of rotation and cavity 16 are eccentrically located with respect to the outer perimeter of body 9. A locking device 24 is provided with a first end and a second end, the first end being within cavity when 16 locked and at an opening in a cavity wall when unlocked and the second end being recessed from the outer perimeter of body 9 when locked and when unlocked. Typically lock 2 comprises two plates 4, 6. Also claimed are an operation method, a manufacturing method and a kit comprising lock 2 and a tamper resistant cover.
Description
-1KINGPIN LOCK
Field of the invention
The present invention is in the field of king pin locks for prevention of the unauthorised attachment of a fifth wheel coupling to a king pin.
Background to the invention
A king pin is a pin, typically made from steel, which is mounted on the fifth wheel coupler on the front of a trailer. The king pin slides into the fifth wheel, which is a horseshoe shaped device on the rear of the towing vehicle. The king pin allows the trailer to rotate within the fifth wheel so that the trailer can be effectively towed.
The king pin and fifth wheel are usually standardised so that any towing vehicle may be coupled to a trailer via the king pin. It is common for a trailer to be left uncoupled from a towing vehicle, for example during storage, or unloading and loading of the trailer. An uncoupled trailer is therefore vulnerable to theft by an unauthorised party who may use their own towing vehicle to couple to the trailer and tow the trailer and its contents away.
Security devices are available which prevent unauthorised parties from coupling to the king pin. Usually, these devices comprise a security device which is secured over the king pin so that it is not possible to couple the king pin to any fifth wheel without first removing the security device. Authorised parties are supplied with a key that will fit a specific security device or a set of security devices belonging to their haulage company, for example. The authorised party may then drive their towing vehicle to a location in which the trailer is being stored and use their key to unlock the security device from the king pin before coupling to the trailer and towing the trailer to its next destination.
Problems with the security devices arise if the security device has been damaged. In particular, the lock of a security device can be damaged if a towing vehicle reverses into the trailer in order to couple to the king pin, this can happen during an attempted theft, or if
-2an authorised driver forgets to remove the security device before attempting to couple to the king pin. A towing vehicle is typically very heavy and will easily damage the security device if it reverses into the device.
If the lock is damaged in such a way that even the authorised person cannot use the appropriate key to unlock the device, they will not be able to remove the security device and so will not be able to tow the trailer to its next destination. This is costly to the haulage company because the trailer cannot be towed according to schedule and will usually necessitate the destructive removal of the security lock.
Further, some security devices can attach to the king pin without being locked in place. If the person securing the trailer becomes distracted whilst attaching the security device then they might inadvertently leave the trailer vulnerable to theft because it is then possible to remove the security device without the key.
Summary of the invention
According to an aspect of the present invention, there is provided a king pin lock comprising:
a body having a generally circular outer perimeter;
a cavity configured for receiving a king pin, said cavity having an axis of rotation;
a locking device for locking the king pin within the cavity, the locking device being moveable between an unlocked position and a locked position, wherein in the unlocked position the locking device has a first end located at or near an opening in a wall defining the cavity, and wherein in the locked position at least a part of the first end of the locking device is positioned within the cavity, wherein the second end is recessed from the outer perimeter of the body in both the unlocked and locked positions; and in which the axis of rotation and the cavity are eccentrically located with respect to the outer perimeter of the body.
-3The eccentric position of the axis of rotation and the cavity in relation to the generally circular outer perimeter is advantageous because if a force is directed to the perimeter of the king pin lock, the force will result in a turning force on the king pin lock body. The king pin lock will rotate about its axis of rotation on the king pin, moving the second end of the locking device, the lock face and keyway away from the site of impact.
Rotation of the king pin lock serves to absorb and dissipate the force of the impact, thus protecting the locking device from damage.
Another advantage is that the locking device does not extend beyond the outer perimeter of the body of the king pin lock. The locking device is recessed within the outer perimeter of the body so that the locking device is protected from impacts due to its position away from the point of impact of the king pin lock.
In some constructions of the device, the body of the king pin lock can comprise a first plate from which the wall defining the cavity extends perpendicularly. The first plate provides protection for the locking device during an impact.
In some examples, the king pin lock body further comprises a second plate which can be spaced apart from the first plate along the axis of rotation. The first and second plates provide strength to the king pin lock and protect the locking device.
First and second plates provide the locking device with a wide range of protection from different impact angles.
In some examples, the outer perimeter of the first and second plates may be the same size. This is advantageous as it provides strength and protection to the locking device, particularly during an impact, as both the plates are able to take the force of the impact at the same time.
In some examples, the wall defining the cavity can extend between the first and second plates. In these examples, the plates provide strength to the device whilst reducing
-4the overall weight of the device in comparison to other devices, for example those comprising a solid cast king pin lock body.
In some constructions, the cavity can have a base member. The base member can minimise the transfer of grease onto users of the king pin lock whilst they position the king pin lock over the king pin.
In some constructions, at least one support member can extend between the first plate and the second plate. In comparison to devices comprising a solid cast king pin body, the at least one support member can provide extra strength without adding considerable weight to the king pin lock.
In some examples, a plurality of support members can be circumferentially spaced between the first plate and the second plate. A plurality of circumferentially spaced support members is advantageous because they provide strength to the body without adding excessive weight to the device.
In some examples, the king pin lock can further comprise a handle in order to aid lifting and positioning of the device.
In some examples, the body and the wall of the cavity can be integrally formed. In other examples, the wall defining the cavity can be welded to the body.
In some examples, the first and second plates are the same diameter. This is advantageous as it provides strength and protection to the locking device, particularly during an impact, as both the plates are able to take the force of the impact.
In some examples, the body has an upper surface and a lower surface and the upper and lower surfaces are opposing surfaces with a generally circular peripheral wall extending between the upper and lower surfaces and with the cavity extending between the upper and lower surfaces.
-5In some examples, at least one aperture may extend at least partially through the body from one of the upper surface or the lower surface to reduce the weight of the king pin lock.
In another aspect, there is provided a method of using the king pin lock, comprising the steps of:
(a) introducing a king pin into the cavity of the king pin lock; and (b) moving the locking device from the unlocked position to the locked position such that the locking device engages with the king pin, locking the king pin within the cavity.
In another aspect there is provided a method of manufacturing a king pin lock, comprising the steps of:
(a) providing a plate having a wall defining a cavity configured for receiving a king pin, said cavity extending perpendicularly from the plate;
(b) positioning a locking device in relation to an opening in the wall, said locking device configured to be movable between an unlocked and a locked position, such that in an unlocked position, a first end of the locking device is located at the opening in the wall, and a second end of the locking device is recessed from the outer perimeter of the body, and wherein in the locked position the first end of the locking device is located within the cavity, and the second end is recessed from the outer perimeter of the body; and (c) in which the cavity is eccentrically located with respect to the outer perimeter of the body.
In one example, the method of manufacturing a king pin lock may further comprise the step of (d) positioning a second plate spaced apart from the first plate such that the cavity extends perpendicularly between the first and the second plates.
According to another aspect of the invention, there is provided a kit comprising:
a king pin lock as described herein; and a tamper prevention cover, wherein the tamper prevention cover includes an aperture for receiving a king pin that is fastened by a fastener to a trailer, wherein the tamper prevention cover has an outer perimeter dimensioned such that when the king pin is received within the aperture of the cover, the outer perimeter of the cover extends beyond the fastener to shield the fastener from being tampered with.
Detailed description of the invention
The king pin lock of the present invention will now be described hereinafter, by way of example only, in a non-limitative sense with reference to the accompanying drawings in which like reference signs relate to like elements and in which:
Figure lisa side view of the king pin lock device according to the present invention;
Figure 2 is a side view of the king pin lock showing the front of the locking device;
Figures 3a and 3b show a bottom view of examples of the king pin lock;
Figure 4 is a top view of the king pin lock;
Figure 5 is a side view of the king pin lock showing the locking device;
Figure 6 is a cutaway view which shows how an exemplary king pin is received within the king pin lock;
Figures 7a to 7c show some of the stages of rotation of the king pin lock when it is impacted by a tow vehicle whilst in the locked position on the king pin;
Figures 8a and 8b show the locking device in the unlocked and locked positions, respectively;
Figure 9 shows another construction of a king pin lock according to the present invention;
Figure 10 shows a tamper prevention cover for a king pin; and
-7Figure 11 shows a tamper prevention cover for a king pin in position with a king pin according to the present invention.
Detailed description
Constructions of the king pin lock are described in the following with reference to the accompanying drawings.
Referring to Figures 1 to 5, there is shown a king pin lock 2. The device includes a body 9 which can comprise a first plate 4 and a second plate 6. The body 9 has a generally circular outer perimeter 8. The first 4 and second plate 6 can be connected by a wall 52 defining a cavity 16, such that the plates are spaced apart from each other and the cavity 16 extends perpendicularly between the plates.
In a second construction, as shown in Figure 9, the king pin lock 222 can include a body 92 which has upper and lower opposing surfaces 422, 622. The body 92 has a generally circular peripheral wall 82. A cavity 162 extends into the body from the upper surface 422 towards the lower surface 622, such that the upper surface 422 and lower surface 622 are spaced apart from each other and the cavity 162 extends perpendicularly between the opposing surfaces 422, 622. The cavity 162 has a cavity wall 522.
The second construction of the king pin lock 222 differs from the first construction of king pin lock 2 in that it has a solid construction rather than a first plate 4 and a second plate 6 which are connected by at least one connecting means. As is evident, the features described in connection with the first construction are compatible in any combination with the second construction and like numbering for like features has been used throughout the description.
The cavity 16, 162 is suitable for receiving a king pin 18. The cavity 16, 162 has an axis of rotation 20 such that when the king pin 18 is received inside the cavity 16, 162, the king pin lock 2 is rotatable around the king pin 18. The axis of rotation 20 and the cavity 16, 162 are eccentrically located with respect to the generally circular outer perimeter 8, or generally circular peripheral wall 82 of the king pin lock body 9, 92.
-8As shown in Figures 3a and 3b, the cavity 16, 162 may be closed at one end, or as shown in Figure 4, it may be a through-hole with an opening at both ends. The closed end 42 of the cavity 16 is generally located at the position where the wall 52 defining the cavity 16 extends from the first plate 4. Where a cavity is closed at one end, grease from the king pin 18 is contained within the cavity 16, 162 which helps to minimise the transfer of grease onto users of the king pin lock 2 when the king pin lock 2, 222 is being positioned over the king pin 18.
As shown in Figure 3a, the cavity 16 may be closed at one end by the addition of a base member 56 to the corresponding hole in the plate 4, 6 or body 9 portion, or as shown in Figure 3b, the plate 4, 6 may be a solid plate, lacking a hole corresponding to the cavity 16 and therefore closing the cavity 16 at one end when the device is assembled and secured in place during its manufacture. Alternatively, as shown in Figure 9, the cavity 162 may be closed because it does not extend all the way through the body 92 and therefore a portion of the body 92 underneath the cavity 162 forms the closed end 42 of the cavity 162.
The king pin lock 2, 222 may include a handle 10 for lifting and positioning the king pin lock 2, 222. The handle 10 may be formed from any suitable means and could be attached to the king pin lock body 9, 92 at the first or second plate 4, 6, or upper or lower surface 422, 622. The handle 10 can be fixed in position, as shown in Figure 1. However, in some examples, the handle 10 might be such that it is suitable for folding. The handle 10 can be integrally formed or a separate component attached by welding, brazing, or other suitable means onto the king pin lock 2, 222.
The first plate 4 and second plate 6 may be connected by at least one connecting means such as the first support member 12 and second support member 14, as shown in Figure 1. The support members 12, 14 may be secured to the body 9 of the device by various means, such as the fixings 22 shown in Figure 1, or by welding, brazing, or any other suitable means.
In the second construction of the king pin lock 222, the body 92 of the device is of a solid construction such that the body 92 has an upper surface 422, lower surface 622, and
-9a generally circular peripheral wall 82 extending between the upper and lower surfaces 422, 622.
The second construction of the king pin lock 222 may be adapted to reduce the weight of the device by the provision of apertures 84 within the body 92. The apertures may extend partially through the body 92 so that they are open at one end, or they may extend from the upper surface 422 through the body 92 to the lower surface 622 so that they are open at both ends of the aperture.
The king pin lock 2, 222 includes a locking device having a locking device housing 24. This can be any type of locking device suitable for moving between a locked position 26 and an unlocked position 28 in connection with the lower shoulder 30 of the king pin 18. The locking device is such that the king pin lock 2, 222 is able to rotate about the axis of rotation 20 of the king pin 18 whilst the locking device is in the locked position 26.
An example of a conventional king pin 18 in position within the cavity 16, 162 of the king pin lock 2 is shown in Figure 6. The exemplary king pin 18 has a cylindrical body which includes a recess 37 extending around its centre portion 36. The recess 37 has a smaller diameter than the portions above and below it such that there is an upper shoulder 34 in the upper portion 38 and a lower shoulder 30 in the lower portion of the cylindrical body.
The king pin lock 2, 222 is inserted over the king pin 18 so that the cylindrical body is received within the cavity 16, 162. The locking member 66 is moveable between an unlocked position 28 and a locked position 26. In the unlocked position 28 the locking member 66 has a first end 54 located at or near an opening 60 in the wall 52, 522 defining the cavity 16, 162, and in the locked position 26 at least a part of the first end 54 of the locking member 66 is positioned within the cavity 16, 162.
The part of the first end 54 of the locking member 66 which is positioned within the cavity 16, 162 engages the upper and lower shoulders 34, 30 when the king pin lock 2,
-10222 is in the locked position 26 such that the king pin lock 2, 222 cannot be removed from the king pin 18 without moving the locking member 66 into the unlocked position 28.
The part of the first end 54 of the locking member 66 that engages with the king pin 18 can be a bolt or plunger portion of a tubular push lock, radial pin tumbler plunger lock, or any other type of lock suitable for locking engagement with a king pin 18.
In the unlocked position 28, the first end 54 of the locking member 66 is not engaged with the lower shoulder 30 of the king pin 18, therefore the king pin 18 can be removed from the cavity 16, 162 of the king pin lock 2.
If the locking member 66 is not moved into the locked position 26 the king pin lock 2, 222 will not be suitably engaged with the king pin 18. Therefore, if the locking member 66 is not in the locked position 26 the king pin lock 2, 222 will not stay in position on the king pin 18 if left unsupported, for example if the user lets go of the device without first locking the device.
As is shown in Figures 2, 5 and 9, the locking device housing 24 preferably does not extend beyond the outer perimeter 8/peripheral wall 82 of the body 9, 92 of the king pin lock 2, 222. The lock face 62 and the keyway 64 are therefore recessed within the outer perimeter 8/peripheral wall 82 of the body 9, 92 so that they are protected from impacts due to their position away from the point of impact of the king pin lock 2, 222.
Preferably, the king pin 18 can be contained within the cavity 16, 162 of the king pin lock 2, 222 such that the bottom portion 40 and at least a part of the upper portion 38 of the king pin 18 are contained within the cavity 16, 162. The perimeter of the king pin lock body 9, 92 is therefore larger than the perimeter of the king pin 18 and as such, the king pin lock body 9, 92 cannot enter the king pin receiving portion of corresponding fifth wheel components whilst locked in positon on the king pin 18.
Figures 7a to 7c show some of the stages of rotation of the king pin lock 2, 222 when it is impacted whilst in the locked position 26 on the king pin 18 (king pin 18 not
-11shown). An impact may occur when a vehicle reverses into a trailer in order to try and connect to the king pin 18. The impact generates a force 48. Due to the eccentric location of the axis of rotation 20 and the cavity 16, 162 in relation to the generally circular outer perimeter 8/generally circular peripheral wall 82, a force 48 directed to the perimeter of the king pin lock 2, 222 will result in a turning force 50 on the king pin lock body 9, 92. The turning force 50 is such that the king pin lock 2, 222 will rotate about its axis of rotation 20 on the king pin 18, thus protecting the lock face 62 and the key way 64 of the locking device from damage. Rotation of the king pin lock 2, 222 also serves to absorb and dissipate the force 48 of the impact.
In the example shown in Figures 7a to 7c, only one direction of rotation has been depicted, however, it should be noted that it would be possible for the king pin lock 2, 222 to rotate either clockwise or anticlockwise in response to the force 48. The direction of rotation would depend on its original mounted position on the king pin 18 and other factors such as the angle of the force 48.
The locking device comprises a lock face 62 and a keyway 64. These components are susceptible to damage during an impact. If the king pin lock 2, 222 did not rotate following an impact, the lock face 62 and the key way 64 of the locking device would become badly damaged and distorted which could result in the keys for the locking device no longer being suitable for unlocking and removing the king pin lock 2, 222. However, as the exemplary impaction process shown in Figures 7a to 7c highlights, the eccentric position of the cavity 16, 162 promotes rotation of the king pin lock 2, 222 which moves the second end 44 of the locking device and lock face 62 away from the initial site of impact 46, thus protecting it from damage.
As the lock face 62 and the key way 64 of the locking device are recessed inside the generally circular outer perimeter 8/generally circular peripheral wall 82 of the king pin lock body 9, 92, this offers further protection from the impact force 48.
-12The generally circular outer perimeter 8/generally circular peripheral wall 82 of the king pin body 9, 92 functions to encourage the turning force 50 to rotate the body 9, 92 of the king pin lock 2, 222 when the device is impacted.
Figures 8a and 8b show the locking member 66 of the locking device in the unlocked position 28 and locked position 26, respectively. The locking member 66 is positioned at an opening 60 in the wall 52, 522, such that in an unlocked position 28, a first end 54 of the locking member 66 is located at the opening 60 in the wall 52, 522, and a second end 44 of the locking member 66 is recessed from the outer perimeter 8/peripheral wall 82 of the body 9, 92 at a distance DI. In the locked position 26 the first end 54 of the locking member 66 is located within the cavity 16, 162, and the second end 44 of the locking member 66 is recessed from the outer perimeter 8/peripheral wall 82 of the body 9, 92 by a distance D2. The distance D2 is greater than the distance DI.
The lock face 62 and the key way 64 of the locking device are positioned so that they are also recessed by at least DI in both the unlocked 28 and locked 26 positions.
The king pin lock 2, 222 covers the king pin 18 so that the king pin lock body 9, 92 cannot enter the king pin receiving portion of a fifth wheel component whilst locked in positon on the king pin 18, thus restricting theft of the trailer. However, in some cases thieves have been known to remove the king pin 18 itself in order to re-attach their own king pin and steal the trailer. The king pin 18 is typically attached to the trailer via several bolts. Therefore, in addition to the king pin lock 2, 222, there may be provided a tamper prevention cover 86 for the king pin 18, as shown in Figure 10.
The tamper prevention cover 86 fits over the king pin 18 and covers the fastenings 144 of the king pin 18 which secure the king pin 18 to the trailer, as shown in Figure 11. The king pin 18 is typically fixed to the trailer with screws and bolts 144. The tamper prevention cover 86 has an outer perimeter dimensioned such that when the king pin 18 is received within the aperture 146 of the cover 86, the outer perimeter of the cover 86 extends beyond the fastenings 144 to shield the fastenings 144 from being tampered with, and therefore prevents the king pin 18 from being removed from the trailer.
-13Once the tamper prevention cover 86 is in position, the king pin lock 2, 222 can be secured over the king pin 18 and locked in place. The king pin lock 2, 222 prevents the tamper prevention cover 86 from being removed.
The tamper prevention cover 86 may be secured in position by additional fastening means, or may be held in place via the king pin lock 2, 222. In either case, the king pin lock 2, 222, prevents the tamper prevention cover 86 from being dislodged and therefore prevents access to the fastenings 144 attaching the king pin 18 to the trailer.
The tamper prevention cover 86 includes at least one aperture 146 for receiving the king pin 18 and has an outer perimeter dimensioned such that the outer perimeter of the cover 86 extends beyond the fastenings 144 of the king pin 18. The tamper prevention cover 86 may be a disc shaped device. The tamper prevention cover 86 may include apertures 142 for fixing the tamper prevention cover 86 to the king pin 18 or trailer. The tamper prevention cover 86 may include a peripheral rim 88 to prevent access to the king pin fastenings 144 via the periphery of the tamper prevention cover 86.
The king pin lock 2 can be manufactured by providing a plate having a wall 52 defining a cavity 16 configured for receiving a king pin 18, such that the cavity 16 extends perpendicularly from the plate.
The king pin lock 2, 222 is manufactured so that the cavity 16, 162 and the axis of rotation 20 are eccentrically located with respect to the outer perimeter 8, 82 of the body 9, 92.
A second plate 6 may also be secured to the king pin lock 2, such that it is spaced apart from the first plate 4 with the wall 52 which defines the cavity 16 extending perpendicularly between the first 4 and the second 6 plates.
The king pin lock body 9, 92 can be formed by any suitable construction provided that it retains a generally circular perimeter. For example, the body 9, 92 can comprise a solid body structure containing the cavity 16, 162. In another example, the body 9 may be
-14formed from a first plate 4 with a wall 52 defining the cavity 16 extending perpendicularly from it. In another example, the body 9 may be formed from first and second plates 4, 6, spaced apart from each other along the axis of rotation 20, with the wall 52 defining the cavity 16 extending perpendicularly between them, as shown in Figure 1.
The king pin lock 2, 222 can be manufactured in a variety of sizes such that the cavity 16, 162 is sized to receive any size of king pin 18 and as such restrict coupling to corresponding fifth wheel components when in the locked position 26 on the king pin 18.
Although particular constructions of the invention have been described, it will be appreciated that many modifications/additions and/or substitutions may be made within the scope of the claimed invention.
Claims (18)
1. A king pin lock comprising:
a body having a generally circular outer perimeter;
a cavity configured for receiving a king pin, said cavity having an axis of rotation;
a locking device for locking the king pin within the cavity, the locking device being moveable between an unlocked position and a locked position, wherein in the unlocked position the locking device has a first end located at or near an opening in a wall defining the cavity, and wherein in the locked position at least a part of the first end of the locking device is positioned within the cavity, wherein the second end is recessed from the outer perimeter of the body in both the unlocked and locked positions; and in which the axis of rotation and the cavity are eccentrically located with respect to the outer perimeter of the body.
2. The king pin lock of claim 1, wherein the body comprises a first plate from which the wall defining the cavity extends perpendicularly.
3. The king pin lock of claim 2, wherein the body further comprises a second plate which is spaced apart from the first plate along the axis of rotation.
4. The king pin lock of claim 3, wherein the outer perimeter of the first and second plates are generally the same size.
5. The king pin lock of claims 3 and 4, wherein the wall defining the cavity extends between the first and second plates.
6. The king pin lock of any preceding claim, wherein the cavity has a base member.
7. The king pin lock of claims 3 to 6, wherein at least one support member extends between the first plate and the second plate.
8. The king pin lock of claim 7, wherein a plurality of support members are circumferentially spaced between the first plate and the second plate.
9. The king pin lock of any preceding claim, further comprising a handle.
10. The king pin lock of any preceding claim, wherein the body and the wall defining the cavity are integrally formed.
11. The king pin lock of claims 1 to 9, wherein the wall of the cavity is welded to the body.
12. The king pin lock of claims 3 to 11, wherein the first and second plates are generally the same diameter.
13. The king pin lock of claim 1, wherein the body comprises an upper surface and a lower surface, wherein a generally circular peripheral wall extends between the upper and lower surfaces and wherein the upper and lower surfaces are opposing surfaces with the cavity extending therebetween.
14. The king pin lock of claim 13, wherein at least one aperture may extend at least partially through the body from one of the upper surface or the lower surface to reduce the weight of the king pin lock.
15. A method of using the king pin lock of any preceding claim, comprising the steps of (a) introducing a king pin into the cavity of the king pin lock; and (b) moving the locking device from the unlocked position to the locked position such that the first end of the locking device engages with the king pin, locking the king pin within the cavity.
16. A method of manufacturing a king pin lock, comprising the steps of:
(a) providing a plate having a wall defining a cavity configured for receiving a king pin, said cavity extending perpendicularly from the plate and being eccentrically located with respect to the outer perimeter of the body; and (b) positioning a locking device relative to an opening in the wall, said locking device configured to be movable between an unlocked position and a locked position, such that in an unlocked position a first end of the locking device is located at the opening in the wall, and a second end of the locking device is recessed from the outer perimeter of the body, and wherein in the locked position the first end of the locking device is located within the cavity, and the second end is recessed from the outer perimeter of the body.
17. The method of manufacturing a king pin lock of claim 16, further comprising the step of (c) positioning a second plate spaced apart from the first plate such that the cavity extends perpendicularly between the first and the second plates.
18. A kit including:
a king pin lock of any preceding claim; and a tamper prevention cover, wherein the tamper prevention cover includes an aperture for receiving a king pin that is fastened by a fastener to a trailer, wherein the tamper prevention cover has an outer perimeter dimensioned such that when the king pin is received within the aperture of the cover, the outer perimeter of the cover extends beyond the fastener to shield the fastener from being tampered with.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1802262.4A GB201802262D0 (en) | 2018-02-12 | 2018-02-12 | King pin lock |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201901706D0 GB201901706D0 (en) | 2019-03-27 |
| GB2572251A true GB2572251A (en) | 2019-09-25 |
| GB2572251B GB2572251B (en) | 2021-01-13 |
Family
ID=61731363
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1802262.4A Ceased GB201802262D0 (en) | 2018-02-12 | 2018-02-12 | King pin lock |
| GB1901706.0A Active GB2572251B (en) | 2018-02-12 | 2019-02-07 | King Pin Lock |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1802262.4A Ceased GB201802262D0 (en) | 2018-02-12 | 2018-02-12 | King pin lock |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB201802262D0 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3600914A (en) * | 1969-03-26 | 1971-08-24 | Illinois Lock Co | Theft-prevention device for tractor-drawn trailers |
| US4697444A (en) * | 1985-12-04 | 1987-10-06 | Maffey Constant O | Security device for trailer |
| DE202012104096U1 (en) * | 2012-10-24 | 2012-11-28 | Bernd Engelking | Anti-theft device for semitrailer semi-trailers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798938A (en) * | 1973-03-02 | 1974-03-26 | Best Lock Corp | Armored lock mechanism |
-
2018
- 2018-02-12 GB GBGB1802262.4A patent/GB201802262D0/en not_active Ceased
-
2019
- 2019-02-07 GB GB1901706.0A patent/GB2572251B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3600914A (en) * | 1969-03-26 | 1971-08-24 | Illinois Lock Co | Theft-prevention device for tractor-drawn trailers |
| US4697444A (en) * | 1985-12-04 | 1987-10-06 | Maffey Constant O | Security device for trailer |
| DE202012104096U1 (en) * | 2012-10-24 | 2012-11-28 | Bernd Engelking | Anti-theft device for semitrailer semi-trailers |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201901706D0 (en) | 2019-03-27 |
| GB201802262D0 (en) | 2018-03-28 |
| GB2572251B (en) | 2021-01-13 |
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