Towing Devices TRIZ Cases

Hard surfacing welding electrode fills recesses in nodular cast iron hitch tongues, while a removable ball insert rotates to minimize wear on the drawpin hole.

A trailer hitch uses a motor-driven positioning drive to align the coupling arm with the receptacle.

Coaxial torsion tubes enable vertical movement to absorb transient tongue forces while maintaining compact structure.

Controller estimates time to jackknife based on hitch angle rate of change, alerting driver before loss of control during trailer backup.

Direct sensor detection replaces indirect mechanical switches to resolve ambiguity in trailer coupling pivot end positions.

Segmenting the single door into two cooperating units resolves visual symmetry and access trade-offs via a shared guide track.

An annular locking ring retains an actuator pin in the hitch assembly, eliminating instability caused by pin backout during towing.

A trailer coupling control unit uses encrypted rolling code communication to authenticate mobile operating devices via shared secret keys.

Automated trailer coupler system raises support legs and manages parking brakes via motorized control mechanisms, eliminating manual connection steps.

Spring-biased rotatable tow hook retracts on impact to protect pedestrians and automatically resets for towing readiness.

Symmetric rotation blocking bodies cancel transverse reaction forces, allowing a compact design that withstands high loads without complex axial movement.

An adapter with single bearing points maintains horizontal alignment across heights, reducing structural complexity.

Safety device monitors trailer parking brake status to prevent auxiliary drive actuation during movement, ensuring accident-free shunting operations.

A weighted latch member pivots automatically to secure a hitch ring, simplifying connection procedures.

A towing device uses a sleeved cushion and tightening bolt to restrain axial movement of the cantilever.

A trailer length determination device calculates total length using a movement vector detected during constant circular driving.

Spring-loaded components enable vertical displacement to prevent jamming over rough terrain without requiring manual adjustment.

A trailer hitch ball rod pivots beneath the vehicle bumper to hide the coupling ball when not in use.

A self-contained hydraulic housing integrates a pump and reservoir onto the towing device to enable independent lift and catch actuation.

Rotating the actuating body distributes wear across fresh surface areas, eliminating the need for longer linear adjustment paths.

A ball clamp coupler uses a cam surface and biasing spring to automatically secure a hitch ball within the socket.

A reference finger inside a channel interacts with a sensor unit to measure relative position changes caused by structural deformations.

Rotating multi-face block with ball bearings positions towing accessories inside a hitch receiver, eliminating removal from the hitch.

A trailer hitch ball rod pivots into a rest position outside the receiving device to simplify storage.

A tow bar ball head incorporates a braking device to restrict rotational movement of the coupling relative to the towing vehicle.

A nested stiffening profile reinforces a vehicle carrier support structure against torsional deformation.

Pivotally attached clevis straps dynamically align with a tongue member drawpin hole, enabling tool-free conversion between ring and clevis configurations.

Speed-sensing control unit dynamically adjusts the drawbar gap to reduce aerodynamic drag and fuel consumption while maintaining safe cornering clearance.

A trailer coupling integrates a contactless optical or inductive sensor arrangement to detect the closure element position.

A locking arm extends over a trailer coupler and towing hitch to inhibit uncoupling.

A protective hood and cap assembly shields trailer hitch components from grease contamination during storage.

A removable anti-theft coupling housing uses a nested padlock design to secure trailer connections.

A trailer hitch carrier mounts a magnetic sensor to measure angular position, enabling reliable angle detection without increasing device complexity.

A steerable coupling linkage connects tandem vehicle units using a transversally disposed actuator mechanism.

Dynamic spring biasing returns the tube structure to its original position, preventing hose tangling and abrasion against the truck frame.

Segmented cushion unit absorbs vehicle impact energy before contact occurs, preventing damage to the hitch assembly.

Clamping connection system secures trailer hitch carrier components using retaining clips, avoiding fusion welding breakage and high manufacturing costs.

Pivoting guiding funnels lock via drawbar-actuated arms to resolve the trade-off between precise drawbar alignment and rotational freedom during sharp turns.

A two-sided anti-theft device with coplanar base plates locks onto trailer hitch flanges to prevent unauthorized ball insertion or removal.

Removable fasteners engage apertures in an elongated height adjustment member to position a lunette ring coupling, eliminating rusted nut issues.

A resilient sealing plug expands within a trailer hitch receiver to create a tight barrier against external contaminants.

Segmented pin and block members clamp draw bars against receiver hitches, resolving clearance-induced chatter.

A pivoting latch mechanism engages a safety abutment on tractor support rails to secure the hitching means at selected heights.

Single actuator tilts towing arm via cam and cable transmission, eliminating rigid shaft connections to reduce weight and complexity.

Deep neural networks analyze camera images to calculate reverse paths, eliminating the need for multiple people to manually guide the vehicle during attachment.

Complementary angled hitch ends engage diagonally via an actuator, forcing members against receptacle walls to eliminate wobble and sway during hauling.

Pre-assembled tow-bar components pass through mounting openings to resolve limited tool access during vehicle attachment.

A trailer drive system calculates mass using DC motor current consumption data.

A trailer hitch assembly uses a removable distribution block to convert between standard and weight distribution modes.