To tie the towing knot is necessary if the standard loop on the cable broke or lost at the most inopportune moment. The reliability of the connection directly depends on the correct weaving scheme and the force of tightening, since a huge load will lie on the structure when jerking. There are several proven fixing methods that allow you to safely tow the car even using a regular rope or sling without metal carbines.
The main difficulty is that the knot not only untied under tension, but also did not βbittenβ the fibers of the material, turning into an unheatable lump. When towing, it is important to consider the type of cable: for synthetic tapes, some methods are suitable, and for steel cables or ropes made of natural fiber - others. Mistakes in mating can lead to a break in the cable and damage to the bumper or frame of the towed vehicle.
To perform this procedure, you will need a free end of a cable at least 1-1.5 meters long and an understanding of the principle of operation. stop-piece. In an emergency, drivers often use improvised means, such as a mount or a sturdy stick, to fix the last turn. Below are the most effective and safe schemes that every motorist should know.
Basic requirements for the towing unit
Before proceeding with the viscous, it is necessary to make sure that the chosen method corresponds to the type of material used. Towing knot must withstand dynamic loads arising from the movement from the place, and static - with uniform movement. If you use synthetic tape, the node should not rub it, reducing the strength. In the case of steel cable, it is important to prevent the slide of the turns.
The key parameter is the ability to quickly uncouple after lifting the load. Some knots, tightened under the weight of two tons, become almost indissoluble without scissors or saws. Therefore, priority is given to schemes that retain their shape under tension, but easily dissolve when weakened.
The length of the free end should also be taken into account. Most reliable schemes require a margin of 10-15 cable diameters. If the end is too short, the knot may slip through. If too long, it will hang around and can wind itself onto a driveshaft or hit wheels.
β οΈ Warning: Never use tow knots designed only for decorative purposes or light cargo, as they may not withstand a jerk.
It is important to check the condition of the cable itself at the mating site. If on the site of the proposed node you can see rubbing, breaking wire or thinning synthetic threads, this area can not be used. Move the attachment point above or below the damage, even if it requires a more complex knitting scheme.
Preparation of the cable and selection of the mating scheme
The choice of a particular scheme depends on what exactly you have at hand. If it is a ready-made towing rope with hooks, the task is simplified to fixing the hook in the eye. However, if the hooks are lost and you need to tie the rope to the frame or bumper, the selection rule comes into force. ligature. For flat slings, options that do not create inflection points are best suited.
Before starting work, straighten the end of the cable. Twisted fibers or a entwined steel cable can create a false sense of reliability that will disappear when the first load is applied. Visually assess the diameter: for thin cables up to 10 mm, simple knots are suitable, for thick ropes more complex weaves are required.
There are several basic types of compounds that have proven themselves in the auto environment. The choice depends on the availability of additional objects for fixation (checks, sticks) and the length of the free end.
- πΉ Straight knot The simplest way to connect the two ends, but requires control nodes.
- πΉ Boulin (conversational) creates a non-tightening loop, ideal for covering the frame.
- πΉ Sketch knot It is designed to tie the rope into a loop or ring.
- πΉ Node "noose" Used with caution, only with a stopper.
When preparing, make sure your hands are protected with gloves. Steel cables can leave deep splinters, and synthetics with strong tension can "cut" the skin. Safety in preparation is as important as in the towing itself.
Step by step instructions: how to tie the node "Bulin"
One of the most reliable ways to create a loop at the end of a cable is a knot. bulinIt is often called a gazebo. It does not tighten tightly under load and is easily untied after weight loss. This is ideal if you need to hook the cable on the ledge of the frame or towing eye without a hook.
To begin with, form a small loop on the running end of the cable, retreating from the edge of about 30-40 cm. The loop should be directed to the root (long) end. Run the running end through this loop from the bottom up. Now circle the running end around the back of the cable and again snag it into the original loop, but from top to bottom.
βοΈ Pre-towing control
Tighten the knot while pulling the root and holding the loop. Under the load, it is reliably fixed. It is important that the free end is long enough for control fixation if a long trip is planned on a bad road.
The advantage of boulin is that the loop does not "strangle" the rope, retaining up to 70-80% of its strength. This is critical for old or worn cables, where every percentage of strength counts. In addition, this knot is easily knitted with one hand, which can be useful in an emergency.
The technique of knitting scotch and brammock nodes
If the towed car has a standard loop or ring, and there is no hook on the cable, the optimal solution will be the scatter-knot. It is specifically designed to tie the end of the cable into a finished ring. Its modification, the brammock node, provides even more reliable fixation.
Pass the running end of the cable through a ring or loop. Make the loop running end around the root, while the running end should pass under the root. Then, pass the end into the formed loop and tighten strongly. Bramshkot variant is characterized by the fact that the end of the cable is additionally surrounded around the root part before the final wear.
| Type of node | Appointment | Difficulty | Reliability |
|---|---|---|---|
| Skinny | Fixing to the ring | Low. | Tall. |
| Bramshkot | Fixing to the ring (reinforced) | Medium | Very high. |
| Straight | Linking ends | Low. | Medium |
| bulin | Creating a loop | Medium | Tall. |
The main requirement for these nodes is the correct laying of turns. They should not cross in a chaotic way. When tightening, make sure that the rope is flat. If synthetic tape is used, avoid sharp inflection angles that can damage the material's structure.
The secret to a reliable puff
For maximum reliability after tying the main node, the free end can be tied to the root with a simple grasping node or fixed with tape/scotch so that it does not hang out.
Free end fixation and locking
Even the strongest knot can be untied at constant vibration if not fixed. free-flow. In marine practice, control nodules are used for this, but in car towing, more affordable methods are often used. The length of the hanging end should not exceed 10-15 cm.
The easiest way is to wrap a free tail around the main cable and grab it with tape or tape. This will prevent the swelling of the winds. If there is no tape on hand, you can use wire or even a plastic clamping (knife). The screed is a great modern counterpart that withstands vibration and is easily cut off with a knife on arrival.
β οΈ Warning: Do not leave the long tails of the cable hanging downwards - they may wind on the axle or wheels, which will lead to an accident.
For steel cables, the βfixingβ method is often used, when the end of the cable is unwoven and wrapped around the main trunk, then squeezing. In the field, this is difficult to do, so the easiest way to bend the end and wrap it tightly with a cloth and wire, creating a thickening that will not pass through the turns of the node.
If the node tends to creep (spontaneous untying), you need to use a lock nodule at the very end. It is a simple single node that rests on the main block and does not allow it to dissolve. In emergency cases, a strong stick or mount across the direction of tension is inserted into the node loop.
Mistakes in knitting and security measures
The most common mistake is the use of opportune. A regular linen rope or twine will not withstand a jerk weighing 1.5 tons. It is also dangerous to use knots that are easily untied under variable loads, for example, a simple bow or sliding options without stoppers.
The second mistake is not enough delay. The assembly must be tightened manually with maximum force before the movement begins. Under load it will be tightened even more, but the initial impulse can pull out weakly tight turns. Always pull the cable after knitting, checking reliability.
- π Do not stand in the plane of tension of the cable when checking the knot.
- π Do not use nodes with metal inserts if they may damage the cable.
- π Avoid nodes that are difficult to untie (such as the βdeaf loopβ on synthetics).
Tip: Before starting towing, make a jerk with the cable in place to make sure that the knot holds and the car does not break off from the place ahead of time.
Remember that when towing, forces that are many times greater than the weight of the car act on the knot, especially at the time of touching. Therefore Never skimp on the length of the cable and do not use damaged areas.. If there are doubts about the reliability of the node, it is better to find another cable or call a tow truck.
Frequently Asked Questions (FAQ)
Can I use a regular rope for towing?
Using a regular rope is not recommended. It does not have the necessary elasticity and tensile strength. When jerking, such a rope will burst instantly, which can lead to damage to cars or injuries. Use only specialized cables.
Which knot is easiest to untie after towing?
The knot is most easily untied. bulin It is not a dead loop, because it is not a dead loop under load. Straight knots on synthetic tapes also usually dissolve easily after stress relief.
Do I need to lubricate the knot before tying?
No, you don't have to lubricate the knot. Lubrication can reduce friction between turns, which will lead to slipping and untying of the connection under load. The cable shall be dry and clean.
What to do if the knot freezes in winter?
If the knot is frozen and does not untigate, do not use excessive force to avoid damaging the cable. Pour it with warm water (not boiling water to avoid damaging the synthetics) or use a lock defroster. Steel cables can be carefully warmed, but with caution.
The main conclusion: Properly tied tow knot is the key to safe delivery of the car. Donβt be lazy to double-check the mount before the start.