Road train drawbar

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.

3 dwg

 

The present invention relates to the field of trackless vehicles and can be used in towing devices, cars and trailers, as well as in the construction of articulated buses.

You know trailer hitch-trailer trucks (see the book the film WAS "Hitch cars and tractors". M-L: the motor cycle", 1961. p.35, Fig), consisting of a light vehicle with a trailer or bus with trailer link. This trailer hitch 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 trains. To prevent uncoupling of the 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 a low 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 staff for installing clamps etc.

It is also known trailer hitch combination (patent RU 22300675), consisting of a ball head, which is made of two parts. The lower part is made for ml what about the whole bracket trailer hitch of the vehicle, and the upper part 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 parts of the ball coupling connected between a connecting finger, fixed ball retainer bracket trailer hitch of the vehicle. Despite several advantages of this design, the latter has a significant drawback, namely, that increasing the lifetime of the vehicle in the area of contact of the projection and depression parts ball heads that do not have a rigid connection will be increased wear their mating surfaces. Such wear will create conditions for the emergence of the radial clearance between the mating protrusion and a depression that will lead to significant dynamic loads that can lead to failure of the trailer hitch, and therefore emergency situations.

Therefore, the aim of the invention is to improve the reliability of the coupling parts of the ball coupling and traffic safety of trains.

This objective is achieved in that the circular projection at the lower part of the ball head on its circumferential circular surface provided with a pair of undercut through the slots located on the longitudinal axis of the traction-coupling the first device of the vehicle and cooperating with a pair of protrusions, located in the cavity of the upper part of the ball head, and on a horizontal plane last made hemispherical recess communicating with ball retainer mounted on a similar plane referred to the lower part of the ball head.

Figure 1 shows a General view of the trailer hitch in section, figure 2 is a view along arrow a on the upper part of the ball head and figure 3 is a view along arrow on the lower part of the ball head.

Trailer hitch consists of a drawbar 1, trailer with a hole 2 covering the upper part 3 ball head, in the cavity 4 which is made of the protrusions 5. The lower part 6 ball heads are rigidly connected to the bracket 7 mounted on the towing vehicle, and provided with a projection 8, which is made of the undercut 9, is supplied through the slots 10. On the lower part 6 of the ball coupling posted by ball retainer 11, a spring-loaded compression spring 12, and the upper part 3 ball head is made hemispherical recess 13. In the upper part 3 ball head is square shaped hole 14.

Works trailer hitch as follows. Figure 1 shows the trailer hitch at the start fixing the place of coupling of the towing vehicle and the trailer (not shown), when the shaft 1 of the latter, together with the upper part 3 ball head is laid on the lower part 6 ball head, so that the protrusions 5, made in the cavity 4 of the upper part 3 ball head, was placed through the slots 10, available at the ledge 8 of the lower part 6 of the ball head. The upper part 3 ball head, this position recessed in the direction of arrow E. ball retainer 11, deformirovaly the compression spring 12 in the same direction. After that, the driver of the towing vehicle in the direction of arrow F enters into the hole 2 of the tiller, and then in a square shaped hole 14 such form key (not shown) and turns on the arrow To the upper part 3 ball head relative to the stationary lower part 6 ball head. While the protrusions 5 of the upper part 3 ball head is moved in the recesses 9 of the bottom part 6 ball heads on the arrows L (see figure 3) as long as they will not take extreme positions in the past. At the same time in the same direction together with the upper part 3 ball head moves executed and hemispherical recess 13, which, in the end, comes into contact with ball retainer 11. As soon as such contact occurs, the ball retainer 11, under the action of the compression spring 12, is moved in the direction opposite to the arrow E, and securely lock the upper part 3 ball head relative to the lower part 6 of the ball head. In the end, the two parts 3 and 6 ball head will be securely fastened consider is Ino each other. After that, the driver removes the key in the opposite direction of the arrow F and the car is ready to move.

For uncoupling of the parts of a combination of data steps are performed in reverse order, and when the protrusions 5, made in the cavity 4 of the upper part 3 ball head after its rotation in the direction opposite to the arrow, but with some effort required to release the ball retainer 11 of the hemispherical shape of the recess 13 will enter the space through the slots 10, the shaft 1 together with the upper part 3 ball head is lifted in the direction opposite to the arrow F. In the end, recepce links lorry carried out. The following describes the process can be repeated many times.

Feasibility advantage of the proposed technical solutions in comparison with known obviously as it improves the reliability of the coupling parts of the ball coupling and, consequently, the safety while driving the vehicle.

Trailer hitch, mainly light vehicle, comprising a ball head, which consists of two parts, provided with a circular protrusion made on the lower part, and a depression on the top, and connected with the connecting finger with lock its position, characterized in that the circular projection at the lower part of the ball head on its circumferential circular surface provided with a pair of Vito the EC through the slots, located on the longitudinal axis of the trailer hitch of the vehicle and cooperating with a pair of protrusions located in the cavity of the upper part of the ball head, and on a horizontal plane at the last completed hemispherical recess communicating with ball retainer mounted on a similar plane referred to the lower part of the ball head.



 

Same patents:

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

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.

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

2 dwg

FIELD: transport engineering; railless vehicles.

SUBSTANCE: invention can be used in trailer-trains and articulated buses. Proposed draw-and-coupling gear, mainly of passenger car, includes ball head consisting of two parts-lower one made integral with bracket of car draw-and-coupling gear and upper one, installed for movement in pole body and locked relative to each other. Bracket of draw-and-coupling gear of car is provided with mating channels, longitudinal one in which rod is fitted for movement being hinge-connected with bell crank with cam on end arranged in vertical channel and engaging with slot made on rod of upper part of ball head. Other end of said rod is connected with like bell crank installed inside body of car, being locked relative to car body. Mating surfaces of cam and slot have curvilinear and straight-line surfaces arranged in vertical longitudinal plane of bracket of car draw-and-coupling gear.

EFFECT: possibility of locking of car and trailer from driver's seat.

2 cl, 3 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.

EFFECT: improved stability of trailer-train at application of brakes and prevention of jack-knifing of trailer in case of delayed operation or failure of main line connecting brake system of prime-mover and locking mechanism.

3 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: 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

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

The invention relates to the field of trackless vehicles

The invention relates to the field of trackless vehicles

The invention relates to an automatic towing devices for transport engineering

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.

EFFECT: improved stability of trailer-train at application of brakes and prevention of jack-knifing of trailer in case of delayed operation or failure of main line connecting brake system of prime-mover and locking mechanism.

3 dwg

FIELD: transport engineering; railless vehicles.

SUBSTANCE: invention can be used in trailer-trains and articulated buses. Proposed draw-and-coupling gear, mainly of passenger car, includes ball head consisting of two parts-lower one made integral with bracket of car draw-and-coupling gear and upper one, installed for movement in pole body and locked relative to each other. Bracket of draw-and-coupling gear of car is provided with mating channels, longitudinal one in which rod is fitted for movement being hinge-connected with bell crank with cam on end arranged in vertical channel and engaging with slot made on rod of upper part of ball head. Other end of said rod is connected with like bell crank installed inside body of car, being locked relative to car body. Mating surfaces of cam and slot have curvilinear and straight-line surfaces arranged in vertical longitudinal plane of bracket of car draw-and-coupling gear.

EFFECT: possibility of locking of car and trailer from driver's seat.

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.

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

2 dwg

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.

3 dwg

Road train drawbar // 2397882

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Road train comprises ball head consisting of two parts furnished with coaxial holes receiving jointing pin. Pin has circular groove interacting with bracket retainer. Ball head top part is made integral with said jointing pin. Pin circular groove interacts with yoke spring-loaded relative to ball head lower part with the help of compression spring. Said yoke is flexibly coupled with control lever located in trailer cab by means of flexible linkage arranged in bracket channel.

EFFECT: higher reliability in operating conditions.

3 dwg

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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