SU1498602A1 - Hand tool - Google Patents

Abstract

This invention relates to a hand tool for unscrewing threaded connections in hard-to-reach places. The purpose of the invention is the expansion of operational capabilities. The tool contains a hollow handle 1 with a working head 3, having a pharynx 4 and radial holes 5. The detector is a capsule 6 with radial holes 7 in which the glow lamp 8 and light guide 12 are installed. During operation they turn on the lamp 8 illuminating the object 19 , and the pharynx is pointing at him. Getting into the last, the object 19 sinks the capsule 6 and, when its radial holes 7 are aligned with the radial holes 5 of the working head 3, the light of the lamp 8 signals that the object 19 is installed in the mouth of 4, after which it is unscrewed. 1 hp f-ly, 3 ill.

Description

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The invention relates to a hand tool for unscrewing threaded connections in hard-to-reach places and can be used in various fields of engineering.

The purpose of the invention is to expand the operational capabilities by expanding the working range of standard sizes of threaded connections with a simultaneous increase in their illumination.

1 shows a hand-held tool, general view; Fig.2 - working head; on fig.Z - section aa on fig, 2,

The hand tool comprises a hollow handle 1 with a power supply source 2 placed therein, an operating head 3 with a sieve 4 and radial holes 5 in which a capsule 6 is mounted for movement along the axis of the handle 1 and has radial holes 7 respectively 5 working head 3. In the capsule 6 there is a light source in the form of an incandescent lamp 8 fixed in a cartridge 9 and connected by an insulated wire 10 to an electric power source 2 which is isolated from the handle 1 by means of a dielectric 11. An end cap of the capsule 6 is covered by a transparent protective partition, which is a light guide 12.

The internal cavity of the handle 1 is closed by a cap 13, on which a switch 14 is placed, connecting the lamp 8 to one of the poles of the source 2: Power supply, the second pole of which is connected to the lamp 8 by the wire 10 and contact 15, which can be sealed tightly chuck 9,

Capsule 6 may be sealed to ensure operation with a key in a fire-hazardous environment. In this case, its radial holes 7 are hermetically sealed with transparent-partitioned walls 16. The radial holes 5 of the working head 3 are also

can be closed with transparent partitions 17. To improve the view in the handle 1 in the area of the openings 5 there are recesses 18.

Hand tools work as follows. .

The switch 14 turns on the incandescent lamp 8, the rays of light of which illuminate the object 19 through the light guide 12, excluding the scattering of light. After the object 19 is aligned with the opening 4 of the working head 3, it sinks the capsule 6, the latter moves along the axis of the handle 1, and its radial holes 7 are aligned with the radial holes 5 of the working head 3 (Fig. 2), indicated by the light of the lamp 8 that object 19 is mounted in a shed 4.

After that, the lamp 8 is turned off and the object 19 is unscrewed by rotating the tool handle 1.

Claims (2)

1. A hand tool containing a hollow handle with a power source placed in it, a light source, a switch mounted on. handle with a shed and radial holes, mounted with the ability to move along the axis of the handle, a detector and a transparent protective partition, characterized in that, in order to enhance operational capabilities, the detector is made in the form of a capsule with a radial hole, oriented correspondingly to the radial openings of the working head, the light source is located in the capsule, and the transparent protective partition is a light guide fixed at the end of the capsule. 2. A tool according to claim 1, characterized in that the capsule is sealed by means of transparent partitions covering the radial holes. nineteen. / W FIG. 2 Aa  V. Yu srig.Z