RU39354U1 - HINGE DOOR - Google Patents

Abstract

The proposed hinge is a hinge element for the movable connection of the door and frame. The hinge element is made in the form of a bearing assembly, consisting of a radial needle bearing without an inner ring and a thrust bearing in the form of a ball. The vertical load from the upper half-loop to the lower half-loop is transmitted through the locking screw (spring pin) to the axis and from the axis to the thrust bearing. The radial load from the upper half-loop to the lower half-loop is transmitted through the axis to the needle bearing. The bearing assembly is protected by a sealing element. The features of the proposed loop include: - Increased bearing capacity through the use of a needle bearing. - Increased environmental protection through the use of a sealing element. - Resource balance of elements. - Simplicity of design due to careful analysis of the functional purpose.

Description

The technical field to which the utility model relates.

The claimed technical solution relates to devices for providing a movable connection of door leaves and door frames with the possibility of regulating their relative position.

State of the art

Known door hinges (hereinafter - hinges) Mechanica of the Italian company SAVIO (www.savio.it) Figure 1 and hinges of the KT-V 6R series of the German company Dr. Hahn GmbH (www.drhahn.de) Figure 2. These hinges, considered as an analogue, have a door adjustment mechanism relative to the frame and a hinge assembly. The hinge assembly is made in the form of an angular contact sliding bearing, consisting of a plastic sleeve (fixed in the lower half loop) and an axis (fixed in the upper half loop). The disadvantages of these loops due to the use in the design of the bearing assembly of the slide are:

1. low bearing capacity - at least three hinges must be installed on one door leaf;

2. sensitivity to the abrasive composition of dust contained in the air of the environment — when installed on the external facades of buildings, especially in the summertime, the ingress of road dust causes scoring on sliding surfaces, followed by an avalanche-like increase in wear. The closest in technical essence to the claimed solution is a loop STN-0109D LLC "Saturn" (http://satum.tatarstan.ru) Figure 3, considered as a prototype.

The hinge consists of two half loops having grooves for adjusting the door relative to the frame and the hinge assembly. The adjustment slots are protected by covers fixed with locking screws on the inside of the hinge. The hinge assembly is made in the form of a persistent rolling bearing (perceiving axial loads) and a pair of radial bearings (perceiving radial loads), one of which (upper) - sliding - is made in the form of a polyamide sleeve, and the second (lower) - rolling. On opposite sides of the bearing assembly, snap rings are mounted to fix the bearings on the axle. The disadvantages of the STN-0109D loop are:

1. the mismatch of the service life of thrust and radial bearings (the durability of radial bearings is an order of magnitude lower than the thrust bearing) and, as a result, the low durability of the entire bearing assembly, determined by the element with less durability;

2. poor protection of the bearing unit from environmental influences;

3. The increased metal consumption of the half-loop due to the use of a standardized thrust bearing having significant radial dimensions.

Utility Model Disclosure

The objective of the proposed model is to increase the competitiveness and reliability of the loop.

When implementing the proposed technical solution, the following technical results are achieved:

1. increased operational resource;

2. the bearing capacity increases;

3. reduced manufacturing costs.

The technical result is achieved:

- according to paragraph 1 due to the use of a bearing assembly with greater, in comparison with the prototype, durability;

- according to paragraph 1 due to the use of a sealing element to protect the bearing assembly from environmental influences;

- according to paragraph 2 due to the use as a radial needle bearing, which has a greater load capacity in comparison with a ball bearing (used in the prototype);

- according to paragraph 3 due to the use of a smaller, compared with the prototype, the number of parts of the bearing assembly and their structural elements;

- according to paragraph 3, by reducing the metal consumption of the half-loop - reducing the cross section of the profile of the initial billet (the bearing assembly has smaller radial dimensions compared to the prototype).

Brief Description of the Drawings

In Figures 1 and 2, the device of the analog loops is shown (Mechanica loop of the Italian company SAVIO and loop of the KT-V 6R series of the German company Dr. Hahn GmbH).

In Figures 3 and 4 shows the appearance and section of the loop - prototype (loop STN-0109D LLC "Saturn"). Adjusting grooves are hidden by protective covers. The cutaway is conventionally not shown: two locking screws for fixing the covers, one locking screw for fixing the axis in the upper half-loop, two decorative covers (upper and lower).

The cross section shows (listing from top to bottom): semi loop upper, axle, retaining ring, thrust ball bearing, polyamide sleeve, lower half loop, radial ball bearing, retaining ring.

Figures 5 and 6 show the appearance (semi-loops and protective covers are conventionally shown translucent) and a drawing of the proposed loop. Section A-A shows (listing

from top to bottom): upper half-loop, axis, lower half-loop, sealing element (for more details see element C), radial needle bearing without inner ring, retaining ring, thrust bearing - ball, decorative cover. Section BB shows a locking screw (a hollow spring pin with a longitudinal section is allowed).

Utility Model Implementation

The proposed loop is used as follows:

1. Depending on the location of the doors (left or right opening), a preliminary assembly is carried out:

a. A sealing element, a needle bearing and a snap ring are successively mounted on the axis.

b. The larger end of the axis is inserted into the upper half-loop and secured with a locking screw or spring pin.

from. The smaller end of the axle with mounted parts is inserted into the lower half-loop into which the ball is pre-installed.

d. A decorative cover is installed in the lower part of the lower half loop.

2. Using fasteners (bolts), the hinge is attached to the door and frame. The upper half-loop - to the door, the lower - to the frame.

3. Adjusting the position of the door relative to the frame is done by moving the bolts through the grooves of the half-loop.

4. Protective covers are installed on the half-loops and fixed with locking screws from the inside (opposite front) side. The loop is ready to use.

Claims (1)

A door hinge containing two half loops, an axis, thrust and radial bearings, characterized in that the radial bearing is made in the form of a needle bearing without an inner ring, the thrust bearing is made in the form of a thrust bearing, consisting of a ball and a flat axis end, the bearing assembly is located in the lower half loop and protected from the external environment by a sealing element, fixing the axis in the upper half loop is made tangent to the axis groove with a locking screw or a hollow spring cylindrical pin with a longitudinal section m, and the fixing in the lower half loop formed spring spacer ring disposed in the groove axis.