RU225474U1 - DOCKEL OPEN - Google Patents

Abstract

The utility model relates to the field of construction and is used for the installation of various devices, insulation and other tasks. The open dowel is intended for construction and installation work; it differs in that it consists of two halves connected by a cast bridge, which serves as a loop for closing before installation in the hole, while the working capabilities of the dowel in terms of holding capacity are more pronounced. A solid dowel, like a classic one, is made of plastic, but it is technologically much simpler and, therefore, cheaper. Performance characteristics are indistinguishable from a solid dowel, but the holding capacity is improved due to the wave-shaped clamping.

Description

The proposed utility model relates to the field of construction and is used for the installation of various devices, insulation and other tasks.

The prototype of our utility model is the dowel patent No. 670751 dated June 30, 1979. The production of prototype dowels requires complex technological equipment operating in two perpendicular planes, and the parts can be located at the intersection of these planes, and these are all limitations and difficulties in the manufacture of prototype dowels add up to the price.

Operating procedure of a utility model

The utility model has an open (expanded) shape (Fig. 1) and consists of two halves connected to each other by a cast bridge (1), which is cast together with the halves and serves as a loop for closing the halves. In the closed state (Fig. 2) the model is no different from the prototype, since the holes for any dowel are drilled to the size of the dowel itself (rarely entered by hand), and mostly hammered in with a hammer, then in the working position it is no different from the prototype. On one of the halves of the PM (Fig. 1) there are protruding clamps (4), for which there are holes (3) on the second half, which, when closed, fix our PM into a single whole (Fig. 2). In the prototype, protrusions are introduced both outside and inside for fixation. Unlike the prototype, the working parts of the PM have a wave-like closure inside, which enhances the holding (working) ability, especially for nails. Wave-shaped closing is always preferable for nails and self-tapping screws. Our PM can be manufactured in one plane, and the technological equipment will be the simplest and, therefore, the most economical and productive.

In fig. 1 - open view (main view and top view).

In fig. 2 - closed view (main view and top view).

In fig. 1 and fig. 2 the following notations are introduced:

1 - casting jumper;

2 - guide groove;

3 - openings for closing;

4 - clamps for closing;

5 - internal wavy closure;

6 - external ring notches.

Claims (1)

The dowel is open, characterized in that it consists of two halves connected by a cast bridge, having clamps and counter holes when closed into a single whole for installation in a hole, the working parts of which have an internal wave-like closure, enhancing the holding capacity.

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