Trailer hitch trailer

 

The invention relates to the field of trackless vehicles. Trailer hitch-trailer trucks, mainly passenger, includes ball head, is fixed on the bracket mounted on the vehicle and interconnected with the housing, locking device, mounted on the trailer drawbar. Ball head consists of two parts. The bottom part is made in one piece with the bracket trailer hitch. The upper part is movably accommodated in the housing of the trailer drawbar. The lower part on the entire inner flat surface provided with a circular protrusion and the upper mating cavity. Both mentioned parts ball heads are vertically spaced aligned openings in which is installed the connecting finger of cylindrical form, interacting with ball retainer bracket trailer hitch of the vehicle. The technical result is to simplify the design and increase the reliability of the trailer hitch cars. 1 Il.

The present invention relates to the field of trackless vehicles and can be used in the design of the trains, consisting of passenger cars and Anya device cars and trucks. - M.-L.: the motor cycle", 1961, page 35, Fig.28), consisting of a passenger car with trailer or bus. This device consists of a ball that ends drawbar curved shape and a hemispherical head of the tiller covers it, thereby ensuring connection of the links of the bus. To exclude rascepa trailer drawbar trailer mounted lock, made in the form of a spring-loaded lever provided with a lock. The disadvantage of this trailer hitch is the lack of reliability in operation, as it does not exclude the possibility of movement of the latch under the action of friction between the ball, hemispherical head and the surface of the lever in contact with the ball, forgetfulness service personnel for the installation of the lock and so on

It is also known trailer hitch trailer described in the book Melik-Sarkisyants A. S., Y. Vinokurov M Trailers for passenger cars. - M.: Transport, 1979, on page 51 Fig.41, on page 52 Fig.43 and so on shows such devices, and on page 64 Fig.54 and Fig.55, and Fig.56 page 65 shows the locking device to them. In General, the described construction the towing device is similar to analog, and therefore, Nanoha device combination, consequently, improving the reliability of its coupling links.

This objective is achieved in that the ball coupling consists of two parts, one of which the bottom is made in one piece with the bracket trailer hitch and the other, upper, movably accommodated in the housing of the trailer drawbar, while the lower part at its inner flat surface provided with a circular protrusion and the upper mating cavity and both mentioned parts ball heads are vertically spaced aligned openings in which is installed the connecting finger of cylindrical form, interacting with ball retainer bracket trailer hitch of the vehicle.

The drawing shows the location of coupling of the trailer hitch of the vehicle with its longitudinal slit.

Trailer hitch of the vehicle consists of a body 1 of the drawbar of the trailer (on the drawing, the drawbar and the trailer not shown) in which stationary but movable posted by the upper part 2 ball head, covering his depression 3 circular protrusion 4, performed on a flat surface 5 of the bottom part 6 ball head is made in one piece with the bracket 7, is rigidly fixed to the vehicle (vehicle not shown). At the top is bowlen connecting the finger 9, having different diameters 10 and 11, and a spherical head 12 and the recess 13 under the ball 14, spring-loaded by a spring 15, a nut 16 mounted in the hole 17 of the bracket 7.

Works trailer hitch as follows. To detach the trailer from the car Unscrew the nut 17 and as soon as the action of the spring 15, the ball 14 will weaken raise the housing 1 along arrow a, while the upper part 2 ball head together with the connecting finger 9 also moves by the same arrow a due to the fact that the diameter of 10 greater than the diameter 11 and the recess 13 is released from the ball 14, is not loaded by the compression spring 15. After connecting the finger 9 will be released from the hole 8 of the bottom part 6 ball head, rescap implemented. For coupling the links of the trailer body 1 together with the upper part 2 of the globular head down to the bracket 7 and the connecting finger 9 is injected into the hole 8, with a circular protrusion 4 is included in the cavity 3, and the connecting finger 9 with its recess 13 is combined with the ball 14. Thereafter, the nut 16 is wrapped up until on is fully compressed spring 15, which provides a secure fit between the parts 2 and 6 ball head. When moving train traction, and who are not connecting finger 9, and the walls of the trench 3 and the circular protrusion 4 ball head, which ensures the reliability of the coupling. Therefore, samarasam hitch excluded even in case of breakage of the spring 15, which in this case will still provide a reliable connection of the ball 14 with the recess 13 of the connecting finger 9.

Feasibility advantage of the proposed technical solution is obvious, as it is simple in design, has no instruments and control devices locking elements extending beyond the trailer hitch, such as, for example, levers, or other elements, it is convenient to operate, safe and ensure the safety of movement of trains.

Claims

Trailer hitch-trailer trucks, mainly passenger cars, including the ball head is fixed on the bracket mounted on the vehicle and interconnected with the housing, locking device, mounted on the drawbar of the trailer, wherein the ball head consists of two parts, one of which, the bottom, made in one piece with the bracket trailer hitch and the other, upper, movably accommodated in the housing of the trailer drawbar, while the lower part on the entire inner PLO is ovci are vertically spaced aligned apertures, have the connecting finger of cylindrical form, interacting with ball retainer bracket trailer hitch of the vehicle.

 

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Car coupler // 2245258

FIELD: transport engineering.

SUBSTANCE: invention relates to towing devices and it can be used in ball-type couplers of cars. Proposed coupler of car contains crossmember with crossmember-to-car body fasteners, longitudinal beam connected with crossmember and coupling ball installed on longitudinal beam. Crossmember is provided with bracket for connecting with longitudinal beam. Crossmember-to-body fasteners consist of two rigidly interconnected curved parts. Longitudinal beam is detachable, consisting of front and rear parts. Front part is curved and provided with bracket for mounting on car body bottom and with flange. Rear part has flange for detachable connection with flange of front of longitudinal beam. Coupling ball is installed on rear part. Crossmember bracket is designed for mounting flanges of front and rear parts of longitudinal beam and connecting the flanges with crossmember by means of detachable joint.

EFFECT: provision of detachable coupler meeting International Standards, easy to manufacture and install on car.

2 cl, 6 dwg

FIELD: transport engineering; railless vehicles.

SUBSTANCE: proposed trailer-train draw-and-coupler gear contains ball head made up of upper and lower parts provided, respectively, with recess and boss, and coaxially arranged vertical holes accommodating connecting pin and pin position retainer. Connecting pin is rigidly coupled with upper part of ball head and is provided with thread interacting with mating thread made in vertical hole in lower part of ball head. Thread cut on side generating surface of boss in lower part of head is in meshing with threaded surface of recess in upper part of said ball head.

EFFECT: improved reliability of trailer-train draw-and-coupler gear.

1 dwg

FIELD: transport engineering; railless vehicles.

SUBSTANCE: proposed trailer-train draw-and-coupler gear has ball head consisting of upper and lower parts intercoupled by means of boss and recess made on head parts and provided with vertical coaxial holes in which cylindrical connecting pin is fitted by round slot with lock in lower part of ball head whose upper part is arranged in drawbar body. Vertical hole in lower part of ball head is provided with longitudinal slot changing at end into round slot. Connecting pin in this section is provided with projection of shape identical to said slot and at other side, semispherical cavity for lock. Cross slot is found in upper end face part of connecting pin, and drawbar body in zone of slot is provided with cylindrical hole.

EFFECT: improved reliability of draw-and-coupler gear.

2 dwg

FIELD: automotive industry.

SUBSTANCE: invention relates to ball-type coupling gears and it can be used for towing light-weight single-axle trailers. Proposed trailer-train coupling gear contains ball support with retainer pressed to support and arranged in housing. said coupling gear is provided with locking mechanism which cuts in piston and locks found in vertically arranged axial space of ball support. Locks are fitted in holes whose axes are arranged in one plane and plane of their arrangement coincides with diameter plane of ball support. Upper part of piston is made in form of conical surface. Locks are spring-loaded relative to ball support and are made for engagement by some ends with relatively perpendicular slots found on inner surface of lock housing and on surface of retainer. Device is furnished with hydraulic cylinder and hydraulic cylinder rod drive lever, piston-pusher with smaller diameter section in upper part to act onto said piston. Underpiston space of piston-pusher is connected with main line of prime-mover brake system. Device is provided with bracket of ball support to move support in direction of longitudinal axis of prime-mover with action of lower part of ball support onto hydraulic cylinder rod drive lever, with possibility of displacement of hydraulic cylinder rod and action of liquid pressure built, in said hydraulic onto piston to move the piston.

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3 dwg

FIELD: transport engineering; railless vehicles.

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2 cl, 3 dwg

FIELD: transport engineering; railless vehicles.

SUBSTANCE: proposed trailer-train draw-and-coupler gear designed mainly for passenger cars has ball head consisting of two parts interconnected by pin with lock, lower part being made integral with bracket of draw-and-coupler gear of car and provided with boss, and the other is installed for movement in trailer drawbar body being provided with mating cavity. Boss of lower part and cavity of upper part of ball head are made in form of truncated tetraheadral pyramid and are provided with coaxial channels accommodating axially spring-loaded pin with flat for engagement with ball lock installed in vertical plane of said boss in lower part of ball head.

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FIELD: transport engineering; railless road vehicles.

SUBSTANCE: proposed draw-and-coupler gear has ball head consisting of two parts, lower and upper one interconnected by round projection and cavity and connected by pin. Round slot is made on inner vertical surface of round cavity of upper part of ball head. Said round slot is semicircle in cross section. Pair of ball-type solids of revolution is arranged in said slot when car and trailer are coupled. Solids of revolution are arranged in cylindrical channel made in diametric plane of circular projection of lower part of ball head. Said solids of revolution engage through compression springs and pushers with cylindrical generating surface of pin. Pin is arranged in vertical channels of upper and lower parts of ball head.

EFFECT: improved reliability of draw-and-coupler gears of passenger cars.

4 dwg

Road train drawbar // 2397881

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Road train comprises ball head consisting of two parts furnished with round ledge made on lower part and recess arranged on upper part. Said parts are coupled by connecting pin with retainer of its position. Ball head lower part circular ledge is furnished with a pair of grooves with through slots. Slots made on lengthwise axle of drawbar interact with a pair of ledges arranged in ball head top part recess. Ball head horizontal surface has semi-spherical recess interacting with ball stop arranged on similar surface of aforesaid ball head lower part.

EFFECT: higher reliability in operating conditions.

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Road train drawbar // 2397882

FIELD: transport.

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EFFECT: higher reliability in operating conditions.

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Road train drawbar // 2397883

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Road train comprises ball head consisting of two parts: upper and lower. Lower part is made integral with drawbar bracket and incorporates circular ledge. Upper part is arranged to move in trailer gooseneck casing. Lower part circular ledge represents a rod with multi thread engaging with mating thread made on its upper part. Square hole is made on top part outer face. Said hole interacts with spring-loaded pin of similar section furnished with handle and fitted to move in gooseneck opening. Face surface of said top part of ball head has diametrically opposite semi-spherical recesses in contact with bal stops. Said stops are arranged on bal head lower part face surface.

EFFECT: higher reliability due to threaded joint made on lower and upper parts of drawbar.

2 cl, 1 dwg

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