Unit For Connecting Parts

Abstract

The invention relates to detachable connections of parts, primarily rigid parts, and can be used, in particular, for connecting elements of building structures. The unit for connecting parts with a curvilinear surface comprises protrusions which are formed on those sides of the parts which are to be joined, said protrusions having bulb-like enlargements at the ends and necks at the bases thereof, and grooves which are complementary to the protrusions and constitute bulb-like recesses corresponding to the bulb-like enlargements of the protrusions and merging into cavities corresponding to the necks of the protrusions.; The surfaces of the ends of the protrusions and adjoining surfaces of the bottom of the grooves have a conical shape, and the vertices of the surfaces of the ends of the protrusions and of the bottom of the grooves are arranged along different sides relative to the parts to be connected, the lateral surfaces of the protrusions and adjoining lateral surfaces of the grooves are formed by moving a straight line along a guide, which constitutes an intersecting line of a spherical surface with a cylindrical surface formed by moving the straight line along an S-like guide. The lateral surfaces of the protrusions and the lateral surfaces of the grooves are smoothly joined to the surfaces of the ends of the protrusions and surfaces of the bottom of the grooves, respectively.

Description

technical field [0001] The invention relates to a detachable connection for parts, mainly rigid parts, and in particular for connecting elements of architectural structures such as transparent domes, equipment frames, furniture and toy elements. Background technique [0002] A known tongue-and-groove type connection is known from RU 2063158 C1. This structure is used to connect the end surfaces of wooden planks that cooperate with each other by longitudinal sides with transverse rails, wherein the means for connecting the planks with rails to each other consist of cooperating grooves and protrusions with dovetail shoulders. formed together. The shoulders are inclined relative to a plane perpendicular to the plank reference plane, and the inclination is towards the raised and grooved edges. [0003] The disadvantage of this technical solution is that such connectors can only be used to connect narrow planks with rails; however, the connection of wide planks is almost imposs...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of this technical solution is that such connectors can only be used to connect narrow planks with rails; however, the connection of wide planks is almost impossible, since it is extremely difficult to prevent locking of the planks during alignment; moreover , the joint is weak during bending because of the stress concentration at the bending point

[0011] The disadvantage of this prototype is that it only allows the joining of flat parts, but there is an urgent need to join parts bounded by curved surfaces such as spherical or elliptical surfaces

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