SU1668750A1 - Detachable joint - Google Patents

Abstract

The invention relates to the field of mechanical engineering and can be used to connect parts. The aim of the invention is to increase the reliability and enhance the functionality by connecting parts of sheet material, as well as eliminating backlash and increasing durability by increasing the zone of contact of the spring with the bevel. The joint contains two sheet metal parts 1 and 2 with coaxial holes 3 and 4. In holes 3 and 4 there is a U-shaped flat spring 5 with a hole in the bend area, in which parts of the parts to be joined are placed. The protrusions are made to fix the spring to parts x 1 and 2. When assembling, the spring 5 with the ends flattened is inserted into the aligned holes 3 and 4 of parts 1 and 2 so that the ends of the spring are located between the projections. Then the spring 5 is shifted to the right, fixing in the holes of the parts and covering with its hole the areas of the parts being joined. 2 hp ff, 7 ill.

Description

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The invention relates to mechanical engineering and can be used to connect parts,

The aim of the invention is to increase the reliability and enhance the functionality by connecting parts of sheet material, as well as eliminating backlash and increasing durability by increasing the zone of contact of the spring with the bevel.

FIG. 1 shows a connection, a section; FIG. 2 - the same, top view; in fig. 3 - spring, side view; in fig. 4 - the same, top view; in FIG. 5 a detail from a sheet material, top view; in fig. 6 shows a variant of the connection of two parts made of sheet material, a section; FIG. 7 is also a top view.

The joint contains connectable parts 1 and 2, one of which (detail 1) is made of sheet material (Fig. 1). The joined parts 1 and 2 can be made both of sheet material (Fig. 6 and 7). In parts x 1 and 2 there are made coaxial holes 3 and 4 in which a U-shaped flat spring 5 is placed, having a hole 6 in the bend zone. In the opening 6 of the spring 5, the parts of the parts to be connected are placed, the section 7 of the part 2 is made with a bevel, and the hole 6 in the spring 5 is made tapering from the center of the bend to the ends so that the edge of the hole 6 contacts the bevel surface 7 .

To fix the spring 5 on one (fig. 2) or two (fig. 7) parts x 1 and 2, protrusions 8 are made,

The installation of the connection is carried out as follows.

Holes 3 and 4 are combined in parts x 1 and 2, after which the ends of the spring 5 are reduced and

P 5 7/2

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 FIG. 2

They are inserted into the aligned holes 3 and 4, while the collapsed ends of the spring 5 are placed between the protrusions 8. After that, the spring 5 is moved to the right, ensuring the placement of parts in the holes b of the spring. In this case, the ends of the spring are moved apart, resting against the ends of the projections 8.

Claims (3)

1. A detachable connection containing contacting parts, a flat spring that interacts with parts of the parts to be joined, and means for fixing the spring, characterized in that, in order to increase reliability and enhance functionality by connecting parts of sheet material, the parts to be joined coaxial holes are made, in which a spring is located, having a U-shaped form, with a hole in the zone of spring bending, an opening of parts to be joined is located in this hole, and fixing means are in the form of stops on the parts to be joined in contact with the ends of the spring. 2. The connection according to claim 1, characterized in that, in order to eliminate backlash, a portion of one of the parts in contact with the edge of the hole in the spring is made with a bevel. 3. Connection according to claim 2, characterized in that, in order to increase durability by increasing the zone of contact of the spring with the bevel, the hole in the spring is made tapering in the directions from the center of the spring bend to its ends so that the edge of the hole with the the bevel surface is carried out along the line. one FIG. J FIG L 3G 3-FIG. 5 at FIG. 7