CZ303991B6 - Door wing closing mechanism - Google Patents

Abstract

In the present invention, there is disclosed a door wing closing mechanism formed by a crankshaft (1) interconnected with a door wing (2) and coupled by means of a connecting rod (5) with a piston (3) moving within a cylinder (4) filled with a liquid, wherein an adjusting tube (8) is slidably mounted within the cylinder (4). An adjusting screw (7) presses said adjusting tube (8) via an elastic element (6) to the piston (3), whereby said crankshaft (1) passes perpendicularly to said cylinder (4) axis through an opening performed in the cylinder (4) wall and through a substantially elliptic opening in the adjusting tube (8).

Description

Technical field

The invention relates to a device for closing a door leaf, in particular to a display cabinet door and other smaller-sized opening doors having a weight of about 20 kg. The device is suitable for use in areas where there is a higher demand for product aesthetics when the door leaf closer can be embedded in the floor due to its small size so as not to visually disturb the final product on which it is used.

BACKGROUND OF THE INVENTION

There is a known mechanism for closing the door leaf, which comprises a lever mechanism of larger dimensions, which does not allow it to be hidden in suitable places, for example the floor under the door leaf.

SUMMARY OF THE INVENTION

These drawbacks are largely eliminated by the door leaf closing mechanism formed by the crankshaft connected to the door leaf to which the piston is coupled to a piston moving in a fluid-filled cylinder according to the invention.

Its essence consists in the fact that the adjustable tube is slidably mounted in the cylinder, pushed by the adjustable screw through the spring element to the piston. The crankshaft extends perpendicular to the cylinder axis through a hole in the cylinder wall and a substantially elliptical hole in the adjustable tube.

It is also an object of the invention that the spring element is a spring.

Finally, it is essential that the adjustable pipe by means of the adjustable screw affects the compression of the elastic element.

Overview of figures in the drawing

The invention will be explained in more detail with reference to the drawing. Fig. 1 shows a schematic section of the door leaf closing mechanism. Fig. 2 shows the location of the door leaf closing mechanism used in a two-leaf box. The figure shows the location of both used door leaf closing mechanisms in the lower part of the cabinet, where each of them replaces the lower hinge of the door leaf.

DETAILED DESCRIPTION OF THE INVENTION

In the interior of the exhibition hall it is necessary to realize a cabinet with two door wings with a height of each door leaf of 800 mm and a width of 40 mm. The door leaves are made of 6 mm glass. At the same time, it is required that upon opening of any door leaf it is subsequently spontaneously closed, by a movement sufficiently slow, guaranteeing that the glass of the door leaf is not damaged. Therefore, it is decided to use one door leaf closing mechanism according to the invention for closing each door leaf.

Each door leaf is provided with one door leaf closing mechanism. This is positioned at each door leaf to replace the lower hinge as shown in Figure 2. The upper hinge 9 is a known solution. Each of the door leaf closing mechanisms is recessed into the lower part of the cabinet, i.e. its floor. Each of the door leaf closing mechanisms is

That a cylindrical hole 40 mm in diameter forming a cylinder 4 is formed in its base body formed by a regular metal block of dimensions 85 mm x 25 mm, which forms a cylinder 4 over its entire length. the spring forming the resilient element 6 and the adjustable tube 8. Subsequently, the crank shaft T is threaded through an elliptical opening in the adjustable tube 8 through an opening in the wall of the cylinder 4, that is through an opening in the body of the door. pushing the adjustable pipe 8 over the resilient element 6 to the piston 3. The cylinder 4 is filled with oil in which the piston 3 moves.

Oil permeability during piston 3 movement is realized by the known solution, when when opening the door 2 mechanically via the crankshaft 1 connected with the movement of the piston 3 the oil is easily transferred to the other side of the piston 3 without great resistance. According to the element 6 - the steel springs on the piston 3, the oil is guided through the constricted space and thereby suitably retarded. By means of the adjusting screw 7, the compression of the spring constituting the resilient element 6 is adjusted via the adjusting tube 8, and thus the force with which the door 2 is closed is adjusted. The adjusting tube 8 is movable in the axis of the cylinder 4 to both sides. In this way, the door 2 is slowly closed.

Industrial applicability

The invention can be used in the solution of the comfortable self-closing of the door leaf, in which higher demands are placed on aesthetics. The door leaf closing mechanism is small in size and can be concealed in the floor under the door leaf.

Claims (3)

PATENT CLAIMS A door leaf closing mechanism comprising a crankshaft (1) connected to a door leaf (2) with which a piston (5) is coupled to a piston (3) moving in a fluid-filled cylinder (4), characterized in that an adjustable tube (8) is slidably mounted in the cylinder (4), pushed by the adjustable screw (7) over the spring element (6) to the piston (3), the crankshaft (1) passing perpendicular to the cylinder axis (4) through the hole in the cylinder wall (4) and a substantially elliptical opening in the adjustable pipe (8). Door leaf closing mechanism according to claim 1, characterized in that the spring element (6) is a spring Door leaf closing mechanism according to claim 1 or claims 1 and 2, characterized in that the adjustable pipe (8), by means of the adjustable screw (7), affects the compression of the spring element (6).