RU2283214C2 - Ring - wrench - screw driver - Google Patents

Abstract

FIELD: manual tools, namely for screwing/unscrewing fastening members having slit or cross groove.

SUBSTANCE: ring-wrench-screw driver includes driving part in the form of ring having two ring halves, leaf spring and changeable heads. One of changeable heads is rod of screw driver. In driving part pivot with turning for quick-release thrust washer is mounted. Said washer is used for holding changeable heads having openings for mounting on pivot with possibility of rotation and grooves. Leaf spring is double-side one and it is secured to driving part with possibility of engaging by its one side with wall of groove of changeable head at working rotation of ring halves and with possibility of disengaging at idle rotation of ring halves.

EFFECT: possibility of screwing and unscrewing without separation of tool from fastening member.

3 dwg

Description

The invention relates to a tool and can be used in the assembly-disassembly of various detachable joints in relatively small structures in production and in everyday life.

A known tool in the form of wrenches and screwdrivers according to GOST 25601-83, GOST 25604-83, GOST 25605-83, GOST 25787-25790-83, GOST 3329-75, GOST 18828-73, GOST 2839-71, GOST 2841-71 , GOST-17199-88, containing a drive part in the form of handles of various types and a working part in the form of throats and rods.

Closest to the claimed technical solution is a universal ring-wrench-screwdriver according to the patent for utility model RU 40943 U1, B 25 B 13/06, B 25 V 15/00, 10/10/2004, BI No. 28, 2004.

The tool contains a drive part, made in the form of a ring of two spring half rings, and interchangeable heads, one of which, acting as a screwdriver shaft, has an exemption for connection with the blade. Replaceable heads are rigidly held on the drive part due to the flat spring of the latch.

Such a device does not allow working without tearing the tool from the fastener part, which reduces its operational capabilities.

The objective of the invention is to expand the operational capabilities of the tool.

The technical result consists in ensuring operation both when twisting, and when unscrewing without tearing the tool from the fastener part.

This is achieved by the fact that a two-turn ring-wrench-screwdriver containing a drive part in the form of a ring consisting of two half rings, a flat spring and interchangeable heads, one of which is a screwdriver shaft, differs in that an axis with a groove under the stop is fixed to the drive part quick-release washer for holding interchangeable heads in which holes are made for mounting on the axis with the possibility of rotation and grooves, and a flat spring is made of two-sided and fixed to the drive part with the possibility of interaction with the working Semirings th turn one of its faces with a groove wall of the replaceable head and out of interaction with idle rotation of half rings.

A two-sided flat spring is mounted on two axes of the drive part with the possibility of movement for connecting one of its sides with the grooves of the replaceable head and ensuring the operation of the tool under twisting or unscrewing conditions.

The essence of the invention is illustrated in the drawing. The drawing shows a two-turn ring-wrench-screwdriver.

The two-turn ring-wrench-screwdriver consists of two half rings 1, 2, rigidly interconnected. On the connecting part of the half rings 1, 2, an axis 3 is fixed with a groove under the quick quick-release washer 4. On the axis 3, a replaceable head 5 with grooves is mounted for rotation with a two-sided flat spring 6, which is movably mounted on two axes 7 of the drive part.

The tool works as follows. When turning two half rings 1, 2 counterclockwise, the involved side of the bilateral flat spring 6, abutting against the wall of the groove of the interchangeable head 5, carries it, and with it the part, along with it (working rotation). When two half rings 1, 2 are rotated in the opposite direction, the flat spring 6 disengages from the grooves of the replaceable head 5, while the replaceable head 5, and with it the part, remain in the set position (idle rotation). The replaceable head 5 rotates on the axis 3, holding on to it with the help of a persistent quick-detachable washer 4.

To ensure the working rotation of the tool clockwise, it is necessary to move the double-sided flat spring 6 on the two axes 7 of the drive part to the opposite position.

Claims (1)

A two-turn ring-wrench-screwdriver containing a drive part in the form of a ring consisting of two half rings, a flat spring and interchangeable heads, one of which is a screwdriver shaft, characterized in that an axis with a groove is fixed to the drive part with a groove under the persistent quick-release washer to hold interchangeable heads in which holes are made for mounting on the axis with the possibility of rotation and grooves, and a flat spring is made bilateral and fixed to the drive part with the possibility of interaction with the working rotation of the half rings discharge of its sides with a replaceable head wall of the slot and exit the interaction with idle rotation of half rings.