Trailer hitch trailer

 

(57) Abstract:

Usage: in vehicles. The inventive trailer hitch consists of a drawbar 1, in which the hinge has two shoulders of the lever 4. One shoulder, two shoulders of the lever 4 covers the hitch ball and the other interacts with the buffer compression two shoulders 19 and lever 20 of the actuator brake forward. On the front shoulder duplexer lever 4 has electromagnet 13 mechanism for reversing. 3 C.p. f-crystals, 3 ill.

The invention relates to vehicles, and specifically to towing devices such as trailers.

Closest to the invention according to its technical essence and the achieved result is a trailer hitch that includes a mounting lug with locking mechanism, barrel, shaft, shock absorber, brake roll and the enforcement mechanism in reverse, and connecting the tip and the shaft are movable relative to each other. Mounting tip made integral with the casing, which houses the locking mechanism. The housing is connected with the inner pipe, coaxially with the shaft. Damping of the acceleration and deceleration of the trailer is carried out using a gas amortizatio is the size of the longitudinal slots in the inner tube, which includes the end of the clamping bolt. The end of the inner tube abuts against one end of the two shoulders of the brake lever forward.

The disadvantages of the prototype are the use of relatively expensive and complex gas shock absorber, the need for high quality and precision machining outer surface of the inner tube and the handle end) that moves inside the guide tube, the fragility during operation due to friction of the mating surfaces, resulting in gaps. To increase the durability of the device additionally requires lubrication (tsiatim-201) and seal friction pair using the case. In addition, for driving with a trailer reversing, the driver must leave the vehicle and turn the lever mechanism for reversing, which reduces the usability of the trailer during operation.

The purpose of the invention is improving the usability and reliability.

This goal is achieved by the fact that housing is a key lever, oscillating in the longitudinal vertical plane of the trailer relative to the transverse axis, a damping element consists of a transverse axis of the sleeve located on the axis of the elastic element crucenia in contact with the main lever, and the mechanism to provide a reverse gear connected with the reversing mechanism of the gearbox of the vehicle and is actuated when it is enabled.

This goal is achieved by the fact that the main lever made two shoulders, one arm of which is connecting the tip and the locking mechanism, and the other shoulder interacts when operating with one hand with a buffer compression, and on the other hand with the arm of the brake lever forward.

As the elastic torsion element can be used rubber bearing (silent block) or torsional spring, as a buffer compression - rubber stops.

This goal is achieved by the fact that the mechanism of providing reverse consists of an electromagnet with a movable core, switch on when reverse gear is engaged the vehicle, two shoulders of a spring-loaded lever and stops.

In Fig.1 shows a longitudinal section of the trailer hitch of Fig.2 - the same, top view; Fig.3 - bearing torsion.

Trailer hitch consists of a drawbar 1, in which using rubber-metal bearing 2 and the torsion axis 3 is the main two shoulders lever 4, on the front shoulder of which is made p of the axis 8, the Cam 9, the spring 10 and nuts 11, rotating around the axis 12. The shaft may consist of several parts.

On the front shoulder of the main two shoulders of the lever 4 is also the electromagnet 13 mechanism for reversing, the exposed core 14 which abuts the end of the front shoulder, two shoulders of the lever 15 of this mechanism, and the lever 15 is spring-loaded by a spring 16 in such a way that provides a constant clamp front shoulder to the core 14 of the electromagnet 13 when driving with a trailer forward. The rear arm of the lever 15 has a protrusion 17, and the back part of the tongue 1 - stop 18.

The rear shoulder of the main two shoulders of the lever 4 is located between the buffer compression 19 mounted on the shaft 1, and the upper shoulder, two shoulders of the lever 20 of the actuator brake forward. The lower lever arm 20 is connected through an adjusting bolt 21, the rod 22, the cable 23 with the equalizer and forth with the wheel brakes of the trailer (not shown).

Rubber bearing 2 torsion (silent block) consists of a metal spacer sleeve 24 and the rubber sleeve 25, which inner surface is still linked (vulcanized) with the spacer sleeve and the outer also still linked (vulcanized) with om position relative to the axis (bolt) 3.

Arm 27 (Fig. 2) used for braking the wheels of the trailer in the Parking position.

During the operation of mounting the tip 5 is attached, for example, a ball bearing (coupling ball) hitch of the vehicle and closes a locking mechanism by turning the handle 7.

When the vehicle is moving forward traction rear end of the main two shoulders of the lever 4 abuts against the elastic rubber buffer compression, providing unstressed, silent transfer of force to the trailer. When this occurs during movement of the vehicle / trailer combination of acceleration and deceleration of the trailer now are damped rubber bearing 2 torsion. When slowing down nathusii trailer through the shaft 1 transmits the force through the rubber-metal bearing 2 on the mounting lug 5, which, resting on a ball bearing of a hitch of the vehicle, the shifting of the trailer, thereby raising the rear shoulder of the main two shoulders of the lever, which, resting on the upper shoulder, two shoulders of the lever 20 of the actuator brake forward, transmits the force through the traction rope to the wheel brakes, which results in slowing down or depending on the size of the full deceleration deceleration is ball chain, on another shaft, which is associated with the locking device with locking mechanism and the drive of the brake roll and the enforcement mechanism for reversing trains, characterized in that, to improve convenience in use, and reliability, at the free end of the tiller middle part pivotally mounted to rotate in a longitudinal vertical plane two shoulders lever, one arm of which has the possibility of partial coverage of the hitch ball and the other shoulder is the ability to interact with tongue shock-absorbing element and two shoulders of the lever of the brake of the reel, and on one of the two shoulders shoulders lever installed locking mechanism and the drive mechanism for the rear.

2. The device under item 1, characterized in that the hinge connection of the two shoulders of the lever with the shaft made in the form of rubber-metal bearing.

3. The device under item 1, characterized in that the damping element is designed in the form of a rubber buffer.

4. The device under item 1, characterized in that the drive mechanism for reversing is made in the form of an electromagnet, the core of which interacts with one shoulder, two shoulders of the lever mechanism for the rear of the Sabbath.

 

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