RU1827728C - Ball locator - Google Patents

Abstract

Usage: the invention can be used in radio engineering. The inventive ball retainer has a fixed link 3, in the Central hole of which there is an axis 4 with a key 5, a movable link 6 with a pin 7 cantileverly mounted on one of its ends, balls placed in the holes, a compression spring 11 and a locking mechanism in the form the handle 12 with holes for the pin 7 and a radial groove for the protrusion of the axis 4. An L-shaped bracket 17 is fixed at the end of the axis 4, and a rod 21 is fixed at the end of the handle 12. The torsion spring 20 sits freely on the axis 4, and its ends 18 and 19 cover on both sides the bracket 17 and s 21. The ball retainer latching article provides rotation in both directions. 5 ill.

Description

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The invention relates to instrumentation.

The purpose of the invention is to increase operational capabilities by allowing rotation in both directions, i.e. on and against arrow B.

This goal is achieved by the fact that in the ball retainer the radial groove of the handle is made symmetrical with respect to the protrusion of the axis, and an additional hole is made at its end located symmetrically with respect to the plane of symmetry of the radial groove, one end of the torsion spring can additionally interact with the axis, and the other end can additionally interact with the handle, moreover, a roller is attached to the opposite end of the handle, and an L-shaped bracket is mounted on the axis, on the opposite sides of which are supported and the end of the torsion spring. Such a construction makes it possible to rotate the axis of the latch with an object mounted on it, for example, a board in both directions, i.e. allows you to expand the functionality of the ball retainer.

In FIG. 1 shows a ball lock with a locked movable link - the pin abuts against the end of the handle; in FIG. 2, section AA in FIG. 1; in FIG. 3 ball retainer with unlocked movable link - the handle hole is aligned with the pin; in FIG. 4 section BB in FIG. 3 after turning in the direction of the arrow in FIG. 5 a section BB in FIG. 3 after turning against arrow B.

The ball retainer comprises a device for fixing the printed circuit boards 2 rigidly mounted on the housing 1, a fixed link 3, in the central hole of which there is an axis 4 with a key 5 located in the keyway of the movable link mounted on the axis 4 with a pin 7 mounted on its end , balls 8, placed in radially located holes 9 and 10 of links 3 and 6, respectively, a compression spring 11 and a locking mechanism made in the form of a handle 12 mounted on an axis 4 with a radial groove 13 made symmetrically relative to relative to the protrusion 14 of the axis 4 and with two holes 15 and 16 located symmetrically with respect to the plane of symmetry Г of the radial groove 13. On the axis 4 is a L-shaped bracket 17, which is covered by two ends of spring torsion ends 18 and 19 of the spring torsion . The same ends 18 and 19 encompass the rod 21 from two opposite sides, which are mounted eccentrically on the reverse end of the handle, thereby holding the latter in a neutral position relative to the protrusion L of the axis 4 (Fig. 2) of which the pin 7 is worn;

5 at the end of the handle 12, which ensures the blocking of the movable link 6 from unauthorized rotation.

When using a ball retainer in the devices for fixing the printed circuit boards, the axis 4 is made long enough for its two-support installation in the housing 1, and the printed circuit boards 2 are fixed on the axis 4 using the clamps 22.

The ball retainer works as follows.

To set the axis 4 in the next direction in arrow В, turn the handle 12 in this direction, while the protrusion 14 of the axis 4 leaves the axial

0 to the neutral position shown in FIG. 2. The rotation of the handle 12 in the direction of arrow B within the angle (Fig. 2) is accompanied by the winding of the torsion spring 20 due to the fact that it is mounted on the handle 12

5, the rod 21 carries its end 18 into a rotation, and its other end 19 at this time remains supported in the bracket 17 (Fig. 4), mounted on an axis 4, which remains at rest for the time being. Autonomous rotation of the handle 12 is carried out as long as one wall of its groove

13will not come in contact with the protrusion

14 axis 4 (Fig. 4), the hole 15 of the handle 12 at this moment being aligned with the end of the pin 7 of the link b (Fig. 4). With further

5, when turning the handle 12, the axis 4 and the link 6, which simultaneously with the rotation at the initial moment, moves along the axis 4 toward the handle 12 by a distance equal to the depth of the holes 10, compressing the spring 11, while the end 11 the pin 7 freely enters the hole 15 of the handle 12 combined with it (Fig. 3), and then, after turning the axis 4 together with the handle 12 and link 6 by an angle equal to the angular

5, to the placement of the balls 8, the link 6, under the action of the force of the spring 11, moves along the axis 4 towards the link 3 by the same distance, fixing the axis 4 in a new position. After that, the force is removed from the handle.

0 12, which, under the influence of the end 18 of the spring 20 on its rod 21, returns relative to the fixed axis 4 in the opposite direction to arrow B to its neutral relative to the protrusion 14

5 position (Fig. 2), in which the pin 7 is abutted in its end, i.e. the movable link 6 is blocked.

The installation of the axis 4 in the next position in the direction opposite arrow B is carried out similarly, but by rotation

handles 12 in the opposite direction. Also, within the limits of its rotation through angle a, the spring 20 is screwed in, but now due to the action of the rod 21 on its end 19, and the end 18 remains supported in the bracket 17 (Fig. 5). Further, another wall of the groove 13 (Fig. 5) comes into contact with the protrusion 14, and the hole 16 of the handle 12 at this moment appears to be aligned with the end of the pin 7 of the link 6 (Fig. 5). Upon further rotation in this direction, the handle 12 carries the axis 4 and the link 6 through the protrusion 14, which at the same time as the rotation at the initial moment moves along the axis 4 towards the handle 12 by a distance equal to the depth of the hole 10, compressing the spring 11, and the end the pin 7 freely enters the hole 1 b of the handle 12 combined with it (Fig. 3), and then, after turning the axis 4 together with the handle 13, the link 6 at an angle equal to the angular pitch of the balls 8, the link 6 is returned along the spring 11 axis towards link 3, fixing axis 4 in a new position. After that, the force is removed from the handle 12, which, under the influence of the end 19 of the spring 20 on its shaft 21, returns relative to the fixed axis 4 in the direction of arrow B, B to its position neutral with respect to the protrusion 14 (Fig. 2).

The radial groove of the handle is symmetrical with respect to the axis of the protrusion located in it, the second hole is made in the end of the handle in addition to the existing hole and its symmetry with respect to the plane of symmetry of the radial groove, the possibility of one end of the spring interacting with the axis and the other with the handle, and the rod is also mounted on the reverse end of the handle, and the axes are a L-shaped bracket, on both sides of which the ends of the torsion spring are supported - it increased the operational The possible possibilities of a ball retainer are rotation from with an object fixed on it, for example, a board on both sides.

Claims (1)

SUMMARY OF THE INVENTION A ball retainer of predominantly circuit board mounting devices comprising a fixed link with a central hole in which an axis is provided with a protrusion and with a movable link with a pin mounted thereon and spring-loaded in the direction of the fixed link. balls and a locking mechanism located in the radial holes of the movable and fixed links, made in the form of a handle with a radial groove and an elastic element mounted on the axis with the possibility of rotation relative to the last and the interaction of the walls of its radial groove with the protrusion of the axis, and the elastic element of the handle of the locking mechanism is made in the form of a torsion spring, at the end of the handle facing the movable link, a hole is made, the torsion spring is mounted on the axis with the possibility of interaction of one of its ends with the handle, and the other with the axis, and the pin of the movable link is fixed with one end at its end facing the handle of the locking mechanism, with the possibility of interaction of its other end with the walls holes in the handle of the locking mechanism, characterized in that, in order to increase operational capabilities, the axis is equipped with an L-shaped bracket, the base of which is fixed to its end from the side the handle of the locking mechanism, and the shelf is directed toward the handle, the handle of the locking mechanism is equipped with a rod fixed to its end from the side of the L-shaped bracket, and the ends of the torsion spring are arranged to engage with tension on opposite sides of the handle shaft and shelf G -shaped bracket of the axis, while the radial groove of the handle made symmetrical relative to the protrusion of the axis, and at its end an additional hole is made, located symmetrically to the main relative to the plane of symmetry of the radial groove with the possibility of interaction fee walls with the pin of the movable link. #. /5 fЈ / g2 3d tv & and / a 0ag. 3 6-B FIG. 4 Editor fifty Compiled by M. Volbe Tehred M. Morgenthal Order 2362 Mintage VNIIIPI of the State Committee for Inventions and Discover at the USSR State Committee for Science and Technology 113035, Moscow, Zh-35, Rauska nab., 4/5 Production and Publishing Plant Patent, Uzhhorod, 101 Gagarin St. 5-6 / 7 figure 5 Corrector m.Petrova / H