RU205316U1 - DOOR HINGE FOR CAR - Google Patents

Abstract

The utility model relates to mechanical engineering, in particular to vehicle door hinges. A door hinge for a car contains two links (1) and (2), which are made movable with platforms (3) and (4), on which holes are made. Bolts (5) are rigidly installed in the holes of the platforms (3) and (4) to fasten the hinge to the car door and to the cab. The link (1) has a tab (6) with holes on both sides, into which bushings (7) are installed opposite each other. The bushings (7) are made T-shaped with a cylindrical base (8) and a shoulder (9) and have a through hole (not shown), while the bushings (7) form a cavity (10) between them for lubrication and better and reliable operation of the loop. The link (2) has two legs (11) made with holes, while the links (1) and (2) are fixed to each other through the legs (6) and (11) and the holes of the bushings (7) by means of the articulation axis (12). In this case, the bushings (7) allow for sliding, rotation of the link (2) along the shoulder (13) of these bushings and along the joint axis (12). In addition, the door hinge additionally contains an elastic rubber buffer (14), made of a conical shape. The buffer (14) is installed in the holes of both links on the platforms (3) and (4) in such a way that it protrudes with an expanded part above the front surface (3) of the link (1) and above the front surface (4) of the link (2) of the loop. The mentioned buffers protect the door from a sharp blow and protect the paintwork of the door itself when the hinge is folded. Thus, when the hinge is folded, contact occurs between the buffers, which, in addition, provide a shock-absorbing impact of the hinge when the door is opened. The problem was solved, which made it possible to increase the service life of the car door hinge. 3 ill.

Description

The utility model relates to mechanical engineering, in particular to vehicle door hinges.

Known self-limiting cab door hinge, containing two cavities with mounting holes, interconnected by a sleeve, on which various guides are located (see patent CN 211524464, IPC E05D 11/10, E05D 3/02, E05D 5/02, E05D 5/10 , E05D 5/14, published 09/18/2020).

Known car door hinge, which includes three links obtained by finishing cutting: the first fixed link, subsequently welded to the surface of the doorway of the body, the second movable intermediate link, on the one hand connected to the first link by means of an axis, and on the other hand by means of a bolted detachable connection with the third link, the third movable link, welded on the doors of the car, and on the second link there is a support shoulder over the entire width of the link with a cross-section, for example, in the form of a segment of a circle, with the help of the height of which the opening angle of the hinge obtained by the final cutting of its links is adjusted, and when the loop is fully opened, the ends of the two stops located at the edges on the first link touch the shoulder tangentially, which limits further loop opening (see utility model patent No. 86639, IPC E05D 11/06 (2006.01), published 09/10/2009) ...

Known door hinge for a car, containing two links, one of which is made movable, and the second is fixed, interconnected by an articulation axis, and one of the links contains at least one support surface for abutting against the corresponding protrusion made on the second link of the hinge and limiting the opening angle of the door, the supporting surface and the counterpart of the protrusion of the links are in contact along the plane (see patent for utility model No. 45763, IPC E05D 11/06 (2000.01), published on May 27, 2005).

Known door hinge for a car, containing two links, one of which is made movable, and the second is fixed, interconnected by the axis of articulation and made with the possibility of limiting the angle of opening the door, one of the links contains at least one support surface to abut against each protrusion , made on the second link of the hinge, while the supporting surface is an inclined plane falling towards the location of the protrusion when the door is open, the end part of which in cross-section is made with a radius rounding (see patent for invention No. 2198992, IPC E05D 11/06 (2000.01), published 20.02.2003).

Known is a door hinge containing a movable and fixed half-hinge, each of which consists of a hinge part and a plate attached respectively to the door leaf and to the door frame by means of fastening elements, a rod connecting the half-loops with the possibility of their hinged rotation relative to each other, protective covers that cover cavities of the hinge parts, and the plates of both half-loops are made the same in length and contain through holes for fastening, while the hinge part of the movable half-loop consists of three sleeve elements spaced along the loop length, and the stationary part of the fixed half-loop consists of two sleeve elements spaced along the loop length, which in the closed position of the door hinge are located between the sleeve elements of the movable half-loop, additionally contains sliding bearings located between the upper pair of adjacent sleeve elements of both half-loops and between the lower pair of adjacent sleeve elements of both half-loops b, the outer diameter of which is equal to the diameter of the sleeve elements of both half-loops (see. utility model patent No. 182422, IPC E05D 7/00 (2006.01), published on 08.16.2018).

Known door hinge with damping function, including a housing in which the damper is located with the ability to move in the axial direction, and the end section of the piston rod at the front end of the damper is rigidly connected to the housing, the hinge cup, the connecting element, the right end of which is rotatably located in the housing by means of the first rotating shaft and the left end is rotatably connected to the hinge cup by means of the third rotating shaft, and the connecting element, the right end of which is rotatably located in the housing by the second rotating shaft, and the left end of this connecting element is rotatably fixed to the hinge cup by means of the fourth rotating shaft, and the torsion spring is put on the second rotating shaft (see patent for invention No. 2721671, IPC E05F 3/06 (2006.01), E05F 3/20 (2006.01), published on 05/21/2020).

Known door hinge, containing two links, one of which is made movable, and having protrusions connected to each other by means of a hinge pin (see patent for invention, IPC E05D 5/12, published 20.05.1988).

Known hinge, which is made in one piece with the hinge stop, containing two pivot links of the door hinge with made flat sections, having a pivot edge and mutually reciprocating hinges located on one and the other link, extending from the pivot edge of the flat section, and one of the hinges comprises an inner key surface, and one of the hinges comprises an inner surface and a hinge stop element on the inner surface of the first hinge of the second door hinge link, and a door hinge rod containing a spindle passing through the first hinge of the first door hinge link and a hole passing through the first hinge the second link of the door hinge, whereby, when the spindle is located inside the first hinge of the first link of the door hinge and the first hinge of the second link, the spindle tightly engages the first hinge of the first link and the first hinge of the second link, and the rod is closed on both sides by cylindrical bushings, and the rod stop element door p The section on the bar spindle extends beyond the diameter of the spindle itself (see. patent for invention No. 2560334, MIIKE05D 11/06 (2006.01), published 20.08.2015).

The prototype to the claimed technical solution in terms of the combination of essential features and the achieved technical result is a door hinge for a car, containing movable and fixed links connected by an articulation axis, located in at least one self-lubricating bushing located in the hole of one of the hinge links, while one end part of the self-lubricating sleeve is made of a conical shape with the transition of the edge part into a shoulder (see patent for utility model No. 28508, IPC E05D7 / 10 (2000.01), published 03/27/2003).

The disadvantage in the known technical solutions is that a sufficiently reliable fastening is not provided, in addition, due to the folding of the door hinge links with the cab body, there is no amortization, which leads to a decrease in the service life of the door hinges.

The problem to be solved by the claimed technical solution is to increase the service life of the door hinge.

The task is achieved by the fact that the door hinge for a car, containing two links with platforms and legs, having holes for connecting with each other by the articulation axis, bushings located in the holes of one of the hinge links, additionally contains buffers made of a conical shape and installed in the holes on link pads, while the bushings are made T-shaped with a cylindrical base and a shoulder, and the bushings are installed on both sides in the holes of the foot of one of the loop links, forming a cavity between themselves, in addition, both loop links are made movable.

The set of distinctive features, which consists in the fact that the door hinge for a car additionally contains a buffer made of a conical shape and installed in the holes on the pads of the links, while the bushings are T-shaped with a cylindrical base and a shoulder, and the bushings are installed on both sides in the holes of the foot of one of the hinge links, forming a cavity between themselves, in addition, both hinge links are made movable, which increases the service life of the door hinge for a car.

The essence of the utility model is illustrated by the following drawings:

fig. 1 - car door hinge, general view (rotated in isometric view);

fig. 2 - the same, in section A-A in Fig. one;

fig. 3 - the same, general view when folded (in isometric view).

A door hinge for a car contains two links 1 and 2, which are made movable with platforms 3 and 4, on which holes are made. Bolts 5 are rigidly installed in the holes of platforms 3 and 4 for attaching the hinge to the car door and to the cab. Link 1 has a tab 6 with holes on both sides, in which bushings 7 are installed opposite each other. Bushings 7 are made T-shaped with a cylindrical base 8 and a shoulder 9 and have a through hole (not shown), while the bushings 7 form a cavity between them 10 for lubrication and better and reliable hinge performance. Link 2 has two legs 11 made with holes, while links 1 and 2 are fixed to each other through the legs 6 and 11 and the holes of the bushings 7 by means of the articulation axis 12. In this case, the bushings 7 allow for sliding, rotation of the link 2 along the collar 13 of these bushings and along the articulation axis 12. In addition, the door hinge additionally contains an elastic rubber buffer 14, made of a conical shape. The buffer 14 is installed in the holes of both links on the platforms 3 and 4 in such a way that it protrudes with an expanded part above the face 3 of the link 1 and above the face 4 of the link 2 of the loop. These buffers 14 protect the door from a sharp blow and protect the paintwork of the door itself when the hinge is folded. Thus, when the hinge is folded, contact occurs between the buffers, which also provide a shock-absorbing shock to the hinge when the door is opened.

The claimed technical solution allows to increase the service life of the door hinge.

The claimed utility model meets the requirement of industrial applicability, its implementation is possible on standard technological equipment using previously mastered technologies.

Claims (1)

A door hinge for a car, containing two links with pads and legs, having holes for connecting with each other by the articulation axis, bushings located in the holes of one of the hinge links, characterized in that it additionally contains buffers made of a conical shape and installed in the holes on the pads of the links , while the bushings are made T-shaped with a cylindrical base and a shoulder, and the bushings are installed on both sides in the holes of the foot of one of the loop links, forming a cavity between them, in addition, both loop links are made movable.

Images