Road train drawbar

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

 

The present invention relates to the field of trackless vehicles and can be used in the construction of road trains and articulated buses.

There is a construction trailer hitch, presented in the book Shchukin MM Coupling cars and trucks. M.-L.: The Motor Cycle". 1961. described on page 35 and shown in Fig. This trailer hitch is designed for cars and buses and consists of a ball that ends drawbar curved shape, is rigidly fixed on the frame of the car or bus. On the trailer drawbar is made hemispherical head, covering the ball, thereby coupling the tractor and trailer. To prevent rascepa links trailer drawbar installed lock, which locks the drawbar relative to the ball head. A significant drawback of the trailer hitch is the low reliability of the locking device of the castle and therefore in practice there are known cases of samorastsepa links trains that eventually leads to emergency situations on the road.

It is also known trailer hitch trailer opisne in the patent RU 2230675 C1. Such a device includes a ball head, but unlike similar it consists of two parts: the lower, rigidly associated with creste the nom trailer hitch of the vehicle, and the upper hinge is installed in the trailer drawbar. Both parts of the ball coupling are interconnected vertically installed finger, which is now a ball detent located in the lower part of the ball head. Despite its efficiency of use of the described device has a significant drawback, namely, that under operating conditions the control reliability of the coupling in the movement of trains on the driver's side is completely eliminated and in order to check its quality, the driver must exit the vehicle, which is not always convenient. The lack of control over the reliability of coupling can lead to emergency situations. At the same time, such a device due to the presence of holes in the upper part of the ball head and fingers, having a considerable length, is not secure from the point of view of strength of the structure as a whole.

Therefore, the aim of the invention is a device that ensures the fixation of the coupling directly from the driver's seat of the vehicle and which is more reliable in operation.

This objective is achieved in that the upper part of the ball head is made in one piece with the connecting finger, a circular recess which is interconnected with a spring-loaded relative to the bottom bracket ball head is, a compression spring plug, which is connected by means of a flexible connection, is placed movably in the channel mentioned bracket, a control lever located in the cab of the towing vehicle.

In the drawing figure 1 shows a General view of the combination in figure 2 trailer hitch trailer in section, and figure 3 a section of a trailer hitch on AA.

Trailer hitch trailer consists of a drawbar 1, is installed on the trailer 2, in which is movably top 3 ball head, provided with a connecting finger 4, which is located in the 5 hole made in the bottom part 6 ball head, rigidly connected with the bracket 7 also rigidly attached to the towing vehicle 8. The bracket 7 is provided with a channel 9, which is movably flexible connection 10, one end connected with the spring-loaded compression spring 11 plug 12, and the other with the control lever 13 mounted on the towing vehicle 8. Connecting the finger 4 is provided with a circular recess 14. The lower part of the ball head 6 provided with a circular protrusion 15, and the upper part 3 ball head provided with a circular depression 16.

Works trailer hitch trailer as follows. In figure 1, figure 2, figure 3 shows the position of the device and its parts when the parts of the trailer are connected. For uncoupling it links the driver stand is raceway the control lever 13 in the direction of arrow B, and since it is connected with a flexible coupling 10, and it gets progressively moving in the direction of arrow C. This movement of the flexible connection 10, by attaching it to the fork 12, so as to enable movement of the latter on the same arm With elastically deforming the compression spring 11. As soon as the plug 12 will be released from the circular undercut 14 of the connecting finger 4, that is, when the control lever 13 will occupy a certain extreme right position, the driver registers its known in the art devices, emerges from the towing vehicle 8 and manually lifts the shaft 1 trailer 2 by the arrow F until such time as the connecting finger 4 is completely removed from the holes 5 made in the bracket 7 and the lower part 6 of the ball head. Rescap parts of the combination in this case is complete. The coupling parts train is in reverse order of the above procedure. It should be noted that the control hitch and recepcii links lorry driver of the towing vehicle is important especially in cases when the motion, in an emergency, an urgent need to carry out rasca the towing vehicle and the trailer.

Feasibility advantage of the proposed technical solutions in comparison with the known obvious, since such a design of the coupling is more reliable in operation.

Trailer vs the Phnom device combination, includes ball head, consisting of two parts, equipped with coaxial holes placed in them connecting finger with a circular recess that communicates with the retainer bracket, wherein the upper part of the ball head is made in one piece with the connecting finger, the circular recess of the finger interconnected with spring-loaded relative to the bottom bracket ball head spring, compression plug, which is connected by means of a flexible connection, is placed movably in the channel mentioned bracket, a control lever located in the cab of the towing vehicle.



 

Same patents:

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

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

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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