RU2237146C1 - Device for closing and fixing door in predetermined position - Google Patents

Abstract

FIELD: closers or openers for wings.

SUBSTANCE: device has hinges, cylindrical body, upper and lower supports arranged inside cylindrical body, compression spring and ratchet with beveled side edge and groove. Supports are formed as lower and upper cylinders with block bearings. Ratchet includes pins. Device is provided with cup put on upper compression spring part and with spindle having bearing. Spindle and upper support cylinder are connected one to another by dowel. Spindle end is located in ratchet cavity and has bearing and chassis wheels cooperating with side ratchet edge and ratchet groove. Chassis wheels cooperate with compression spring through ratchet pins.

EFFECT: improved consumer characteristics.

7 dwg

Description

The invention relates to devices for closing and fixing in a predetermined position of a door with a spring mechanism.

A device is known for closing and fixing a door with a spring mechanism, comprising a housing with a coil spring, a roller mounted on an arm, clips for a roller made in the form of semicircular flat springs, a spring-loaded rod that acts as a lever and serves as a guide for the roller. One end of the spring is made in the form of a loop for placement of a spring-loaded rod in it. The body is made of a pipe having a square shape in cross section. The spring mechanism of the device for closing and fixing the door comprises a housing with a coil spring and means for adjusting the spring tension with adjusting slots made at the end of the housing, which is made of pipe. One end of the spring is curved in the form of a loop and covers the rod, and the second is curved in the shape of a ring and has the ability to rearrange in the regulatory slots (RU 2114975 C1, 07/10/1998).

This device has a complex structure.

Closest to this invention, according to the principle of operation and constructive solution, there is a device for closing and fixing in a predetermined position of a door, comprising hinges, a cylindrical body, upper and lower bearings placed therein with support bearings, a compression spring and a ratchet with an inclined lateral edge and a recess ( SU 554391 A1, 06/14/1977).

The known device is not reliable enough.

The technical result achieved by the implementation of this invention is to improve the consumer properties of the device for closing and fixing the door. The specified technical result is achieved by the fact that in the device for closing and fixing in a predetermined position of the door, comprising hinges, a cylindrical body, upper and lower bearings with support bearings, a compression spring and ratchet with an inclined lateral edge and a recess, according to the invention, the supports are made in the form of upper and lower supporting cylinders, and the ratchet has studs, while the device is equipped with a cup worn on the upper part of the compression spring, and a spindle with a bearing, a key for interfacing with These support cylinder and limit switch installed in the cavity and provided with a ratchet gear and bearing wheels cooperating with the lateral edge and the recess of the ratchet, and the ratchet through studs and glass - with a compression spring.

In Fig.1, 2 presents a General view of the device Assembly with a cut along the axis and with the removal of the view on the flange; figure 3, 4 - loop; figure 5 presents the appearance of the device in an exploded state; Fig.6, 7 - ratchet with two and three studs, respectively.

The device comprises: a lower support cylinder 1; lower pillow block 2; lower support 3 (partition), compression spring 4; a cup 5 worn on top of the spring 4; flange with holes 6; needle pins 7; ratchet 8 with an inclined lateral edge and a notch; spindle 9; bearing 10 for spindle 9; upper (partition) support 11; upper pillow block 12; upper support cylinder 13; a key 14 between the spindle 9 and the upper cylinder 13; bearing 15 of spindle 9; castors 16 chassis; loop 17 under the upper and lower cylinders; loop 18, holes 19 for screws; case 20; spindle end 21.

The principle of operation is based on the interaction of the rotary assembly, including the spindle 9 with the end 21, the spindle bearing 15 and the chassis wheels 16, by means of a key 14 with the upper cylinder 13, which is driven by the door hinge 17. The rotary assembly, in turn, is provided with a bearing mechanism and an inclined edge the ratchet 8 exerts pressure and drives the ratchet itself, which, through two or three needle pins 7, exerts pressure on the spring 4 through the flange 6, rigidly connected to the housing 20 and forming two cavities. The actuator is located directly in the first cavity, and the spring 4 is compressed in the second cavity, which is compressed by the studs 7 attached to the ratchet 8. After the force in the opening mode stops on the door, the spring 4 straightens, exerting the opposite effect on the actuator, t .e. the spring is straightened, displacing the studs 7, which means the ratchet itself. The wheels 16 of the chassis, sliding along the inclined edge of the ratchet 8 and rotating, bring the spindle 9, the upper cylinder 13 and the hinge 17 fastened to the door to their original position. The middle part of the housing 20 is attached to the jamb of the door frame, and the upper and lower cylinders rotate, driven by the door.

With a maximum opening of the door by more than 90 °, the chassis sinks into the recess and locks the door; a small force to close it causes the actuator to return the door to its original position. At the same time, the device serves as a limiter and does not allow the door to hit the wall.

Thus, the proposed device for closing and fixing doors provides improved consumer properties.

Claims (1)

A device for closing and fixing in a predetermined position of a door, comprising hinges, a cylindrical body, upper and lower bearings with support bearings, a compression spring and ratchet with an inclined lateral edge and a recess, characterized in that the supports are made in the form of upper and lower support cylinders, and the ratchet has studs, while the device is equipped with a cup worn on the upper part of the compression spring, and a spindle with a bearing, a key for interfacing with the upper support cylinder and the trailer mounted in awn the ratchet and provided with a bearing and gear wheels cooperating with the lateral edge and the recess of the ratchet, and the ratchet through studs and glass - with a compression spring.

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