SU1232465A1 - Ratchet wrench - Google Patents

Description

one

The invention relates to devices for tightening threaded connections and can be used in various industries.

The purpose of the invention is to reduce the size, simplify the design, increase reliability and extend the expense of making the front teeth on the surfaces of the annular projections facing one another.

Fig. 1 shows the key, general view; - Fig. 2 shows section A-A in FIG. 1 {per fit. 3 - interchangeable liner, cut.

A wrench ratchet wrench consists of a housing 1 with a handle 2, on the inner side of the housing 1 there is a cladding protrusion 3 with ratchet teeth 4. The head 5 is mounted in the housing 1 k with a through hole 6 and an annular protrusion 7 having ratchet teeth 8 that have with ratchet eub ml 4 enclosures 1. Golshka 5 is spring-loaded relative to carpus 1 by spring 9. To head 5 crets are mixed liner 10, out of hexagonal tube and having a collar P. At least on one of the planes of the face of the liner 10 polpgli 1 harness 12 forming a stopper for feet (feni replaceable vkpvda1sha 10 in the head 5.

12324652

Wrench ratchet key work as follows.

When screwing the nuts, the key is put on the bolts with the head 5 on the nut (not shown), for 5 the handle 2 turn to the right. The head 5 is clamped by the clamp 9, the ratchet teeth 4 of the housing 1 meshes with the ratchet teeth 8 of the head 5. Simultaneously with the housing 1 the head 5 rotates together with the 10 nut, and the nut hangs.

When the handle 2 is turned to the left, the ratchet teeth 4 of the body 1 slide through 8 in-head 4, only the body 1 makes a turn, and the key head 5 remains stationary. When the first movement of these movements occurs complete screwing of the head on the bolt.

When unscrewing the nuts, it is necessary to rotate the key 180 ° around its uidol osh. When switching to another nut size, a replaceable liner 10 is used, which is inserted into the key 5 of the key, and its stopper, with its bent end, goes behind the end part of the gole 5 and reliably holds the insert 10. The change of the plug 10 is done by first catching it under the collar 11 with a screwdriver.

Fig.Z

Editor A. Shandor

Compiled by A. Koseyev

Tehred I. Gajdosh, Corrector M. Samborska

Order 2730/16 Circulation 1031Subscription

VPIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk iab., d. 4/5

Production and printing department, Uzhgorod, st. Project, 4

Claims (1)

l WRENCH RATTLE KEY, comprising a housing with a handle and ratchet teeth and a head with mating teeth interacting with the teeth. mi of the case, characterized in that, in order to reduce dimensions, simplify the design, increase reliability and versatility, an annular protrusion is made on the inner surface of the housing, the head, axially spring-loaded, is installed in the housing and is made with a through groove and an annular protrusion, and end and ratchet teeth are made on the surfaces of the annular projections facing one another.