SU1438954A1 - Device for screwing and unscrewing nuts - Google Patents

Abstract

The invention relates to a hand tool. The purpose of the invention is to increase productivity. The device for screwing and unscrewing the nuts comprises body 1, size P: W; the working head 2 in it, covering the last flexible element 4, connected to body 1 by one end directly5 and the other through a spring 5 in Body 1 can be rotated around the axis 9, an L-shaped lever 6 is installed. Against the end of the 7 L-shaped lever 6, the guide rollers 10 are placed. During the tightening of the threaded joint, press the L-shaped lever 6, its end 7 bends the flexible element 4 between the rods 10 and due to the power of friction he turns the worker head 2, is stretched one- BpeMejmo SRN zhinu 5. With a sharp releasing the T-shaped rod 6 g rycha- flexible member 4 sags be- tween the rollers 10 and by spring 5 together with the T-shaped lever 6 is returned to its original position. 1 il. e 4 OE 00 with SP 4 -g

Description

The invention relates to hand tools and can be used in various industries in the metalworking industry.

The purpose of the invention is to increase productivity by reducing work effort.

The drawing shows the device

spring 5. At the end of the working stroke, the L-shaped pbriar 6 is abruptly released, while the flexible element 4 sags on the guide rollers 10 and, due to the spring 5, returns together with the L-shaped lever 6 to its original position. If necessary, the duty cycle is repeated as described after

for screwing and unscrewing the nuts.

lengthwise cut.

The device for screwing and unscrewing the nuts comprises a housing 1, a working head 2 accommodated therein with a central socket 3 for a nut (not shown), a working element 2 of a flexible element 4 connected at one end to the housing 1, a spring 5 connecting the other end

In order to unscrew the nut, the device is swiveled around the longitudinal axis of the housing 1 by 180 and mounted 5k t with the working head 2 on the nut of the screw connection to be removed.

Further, the operation of the leak device in the same sequence as when tightening the threaded joint,

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the flexible element 4 with the housing 1, G-about-20, only with the working head 2 different lever 6 for the interaction of the end 7 with the flexible element 4, and installed with the other end 8 in the housing 1 with the possibility of rotation around the axis 9, and two guide rollers 10 opposite the end of the 7 L-shaped lever

ha

The device works as follows.

Before starting the operation, the device is installed by the working head 2 on the nut of the clamped-threaded joint. Then press the G-shaped lever 6, pressing it to the housing 1, while its end 7 acts on the flexible element 4 and bends it between the guide rollers 10. The flexible element 4 begins to move relative to the working head 2 and, due to frictional forces, turns. . around the axis, tightening the threaded joint. At the same time, the flexible element 4 stretches

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rotates counterclockwise, unscrewing the nut.

Claims (1)

Formula invented and A screwdriver and screwdriver, nuts, comprising a housing, a working head housed therein, enclosing the last flexible element, a spring, connecting one end of a flexible element to the housing, so that In order to increase productivity, it is equipped with an L-shaped lever for interacting at one end with a flexible element and mounted with the other to the c in the case with the possibility of rotation, with two guide rollers placed in the case B in front of the St. The poor end of the l-shaped lever is the interaction with the flexible element and the free end of the latter is fixed in the housing. In order to unscrew the nut, the device, before starting work, is rotated around the longitudinal axis of the housing 1 by 180 and installed with the working head 2 on the nut of the threaded connection to be dismounted. Further, the operation of the device proceeds in the same sequence as when tightening the threaded joint, only with the working head 2 rotates counterclockwise, unscrewing the nut. Formula invented and A device for screwing and unscrewing the nuts, comprising a body, a working head accommodated therein, covering the last flexible element a spring connecting one end of the flexible element to the body, so that In order to increase productivity, it is equipped with an L-shaped lever for the interaction of one end with a flexible element and the other end installed in the housing with the possibility of rotation, with two guide rollers placed in the housing opposite to its poor end of the L-shaped lever for interaction the flexible element and the free end of the latter is fixed in the housing.