SU1349017A1 - Joint of two mutually perpendicular sheets - Google Patents

Abstract

The invention can be used, in particular, in radio electronics for fixing removable keys on the chassis of radio equipment. The connection of two mutually perpendicular sheets (L) 1 and 2 contains a standard hex nut 3, its retainer 4 and the fixing screw 5. L 1 has a crosswise groove 7 open on one side. The retainer 4 is made in the form of a V-shaped plate having restrictive protrusions 11 with a groove 12 and protrusions 13 and 14 in the form of triangles, hole 15, lines 16.19 are flexible. The manufacturability of the structure is increased by increasing the degree of its unification by making it possible to use standard connection elements. 1 hp f-ly, 6 ill. sl: about 4 WITH SRIG1

Description

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The invention relates to the field of mechanical engineering and can be used in various industries, in particular in radio electronics, to fix removable covers on the chassis of radio equipment.

The purpose of the invention is to improve the manufacturability of the structure by increasing the degree of its unification by making it possible to use standard elements of the joint.

FIG. 1 shows the connection of two mutually perpendicular axonometric sheets; in fig. 2 - unwrap of the nut retainer; on fig.Z the initial moment of installation of the lock nut; in fig. 4 - the position of the nut and its lock - after fixing the nut; in fig. 5 is a view of A in FIG. in fig. 6 - connection assembly.

The connection of two mutually perpendicular sheets 1 and 2 contains a standard hex nut 3, a retainer 4 a nut 3 and a fastening screw 5 placed in the hole 6 of the sheet 2. In sheet 1, a slotted 7, formed on two sides, is formed linear mutually perpendicular sections 8 and 9, the last of which is adjacent to the open side of the groove 7. The latch 4 is made in the form of a plate obtained by punching 10 (see Fig.2) of a plate, on two parallel sides of which limiting projections are made education n 12, and on the other two parallel sides additional protrusions 13 and 14 are made in the shape of a triangle. The geometrical center of the plate of the retainer 4 is made a notch in the form of an aperture 15. In the process of punching the plate of the retainer 4 on it are indicated the bending lines 16 of its flexible web 17 and lines are flexible 18 and 19 of its additional protrusions 13 and 14, respectively. At the end of the punching of the retainer plate 4, it assumes a V-shape (see Fig. 1), while its protrusions 13 occupy a working position, and the distance A between the tops of its mirrored protrusions 11 is somewhat smaller than the diagonal B of the rectangle Section B of the groove 7 of the sheet 1. The tape 10 is made of a plastic material, for example, soft steel.

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Before connecting the sheets 1 and 2 to each other, latch 4 is inserted into section 8 of the groove 7 (see Fig. 3), pressing the top of its web 17., straighten the latch plate 4 and insert grooves 12 of the wall 8 of groove 7 into its grooves 12 enveloping them by the protrusions I1, thereby preventing the lock 4 from falling out of the groove 7, insert the groove 7 into the section 8, nut 3 so that the two parallel sides of the hexagon of its outer contour enter into interaction with the walls of the section 8 of the groove 7, ensuring that by preventing the nut 3 from turning in slot 7, and the other two, see The hex side of the outer contour of the hexagon came into contact with the protrusions 13 of the retainer plate 4 and folded the protrusions 14 of the latter until it touches the corresponding sides of the hex of the outer contour of the nut 3, thereby preventing the nut 3 from falling out of the groove 7 (see Fig. 4.5 ).

When sheets 1 and 2 are fastened together, the sheets are installed in such a way that the geometrical axes of the holes 6 of the sheet 2 and the nut 3 fixed on the sheet 1 are located on the same straight line, and the sheets 1 and 2 are joined with a screw 5, screwing it into the nut 3 (see Fig. 6), disassembling the connection and removing the nut 3 (if necessary) are performed in reverse order,

The execution of the outer contour of the hexagon nut and the additional protrusions of a triangular shape on the latch plate, with the possibility of their interaction with the corresponding sides of the hexagon of the outer contour of the nut, improved the manufacturability of the joint structure by increasing the degree of its unification.

Claims (2)

1. Connection of two mutually perpendicular sheets, containing a fixing screw placed in the hole of one of the sheets, placed in the profiled open on one side of the groove of the other sheet a nut with a shaped outer contour and a lock nut, made in the form of a plate made of plastic 3I3 material with restrictive protrusions forming U-shaped grooves on its two parallel sides and with a flexible bridge and a notch in its central part, characterized in that, in order to improve the design technological effectiveness by increasing the level of its unification, the shaped groove of the second sheet is made crosswise the form formed by two mutually perpendicular straight linear sections, one of which is adjacent to the open side of the profiled groove, the shaped outer contour of the nut is made in the form of a hexagon Nick, on the other two parallel sides of the latch plate of the nut additional protrusions are made, and the recess of the latch plate the nuts are in the form of a closed cavity, while the nut and nut retainer are placed in the straight section of the cruciform groove perpendicular to its straight linear section adjacent to the open side of the said groove, with the possibility of the two parallel sides of the hex of the shaped outer contour of the nut the walls of the specified section of the cross-groove, and the remaining sides of the hex of the outer contour of the nut with additional protrusions of the nut retainer plate, 2. A compound according to claim 1, about tl and often because the additional protrusions of the nut retainer plate are triangular in shape. W FIG. 2 Fi.Z / T 11 13 And Fi. C / J 12 eleven 17 (rig 5 / 3 Editor M. Tsitkina Compiled by Yu, Sotnikov Tehred A. Kravchuk Order 5201/57 Circulation 798 Subscription VNIIPI USSR State Committee Software Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 Proofreader M. Pojo