RU119982U1 - CHAIR-MUSIC - Google Patents

Abstract

A rest-chair consisting of sidewalls with armrests connected by transverse slats, a seat, a backrest, a transformable working surface, characterized in that the armrests can move relative to the sidewalls and are provided on the side surfaces with through grooves, in which pins fixed in the sidewalls are located, and on the end surfaces of the armrests and the edges of the transformable working surface, lombard loops are installed.

Description

The utility model, relates to furniture, in particular to the nursery, is intended for combined activities, relaxation and diverse work, instead of a table.

There are known designs of such furniture that have sidewalls (left and right), armrests, a seat, a backrest, as well as a music table of various shapes and various modifications of transformation mechanisms:

a) model SL-17PP, the table-music stand is rotatable relative to the armrest, in a vertical plane, of complex shape, with a pad under the arm of a hand and stacking books, papers, etc.

b) model chair 40 with fastening the working surface with the help of a rod and backstage;

c, d) models: M36-01 and Chair-music stand with a removable working surface;

e) an Alt chair with a music stand, in which a retractable working surface is built into the sidewall on the rod and swing arm, with subsequent fixation cantilever relative to the armrests - a prototype (See the Appendix to the application).

A disadvantage of the known analogues (a, b,) is that the working surface of the music table in the working position is fixed cantilever, which does not allow it to be held in a fixed position under the action of dynamic loads during operation. The complexity of the design of the swing-out mechanisms and high for the price.

The disadvantage of the models (c, d) is the removability of the working surfaces and not the reliability of fixation during operation and inconvenience of storage.

The disadvantage of the prototype (e) is the complexity of the design in technical performance, the high price of transformation mechanisms. Insufficient reliability of cantilever fixation of the working surface.

The technical task of the invented model is: the creation of a fairly simple, reliable music chair with a transformation mechanism (extension and rotation), providing rigidity and reliability of fixing the working surface in a stationary position in compliance with GOST 5994-93 (ISO5970-79).

The technical problem is achieved in that the music stand consists of sidewalls with armrests connected by transverse trims, a seat, a backrest, a transformable working surface, the armrests being able to move relative to the sidewalls, and provided with lateral grooves on the side surfaces, in which pins are mounted, fixed to the sidewalls , on the end surfaces of the armrests and the edges of the transformable working surface, ombre loops are installed.

Comparison of the proposed solutions with the prototype show that it differs in the following features:

- the armrests have the ability to move relative to the sidewalls;

- the armrests are provided on the side surfaces with through grooves;

- in the grooves are pins fixed in the sidewalls;

- on the end surfaces of the armrests and the edges of the transformable working surface mounted ombre loops.

Therefore, the claimed utility model meets the criterion of "novelty."

The utility model can be manufactured on standard equipment using well-known technological processes, using standard units and components. Therefore, it meets the criterion of "industrial applicability".

A design feature is that, the turning mechanisms, in the form of ombre loops, mounted on the end surfaces of the armrests and the edges of the transformable working surface of the music stand, allow it to be rotated through an angle of 270 degrees in the vertical plane. At the same time, the transformable working surface of the music table rests on the front upper surface of the armrest, providing rigidity, immobility, and structural stability.

The proposed technical solution is illustrated by drawings. Figure 1 shows a chair in a working position with extended armrests, Figure 2 shows a chair with a transformable working surface in its original position, Figure 3 shows a projection of a chair with the necessary cuts and views.

The music stand consists of sidewalls (1, 2) with armrests (3) connected by transverse legs (4, 5) for the rigidity of the seat (6), backrest (7), and the transformable working surface of the music stand (8).

The armrests (3) have the ability to extend back and forth along the groove-comb system (view A-A) for a certain distance, limited by the length of the groove (9) of the armrests and pins (10) selected on the side surfaces.

Swivel mechanisms, in the form of ombre loops (11, type A), mounted on the end surfaces of the armrests (3) and the edges of the working surface (8) of the music stand, allow it to be rotated through an angle of 270 degrees in the vertical plane.

The free working surface of the music table rests on the front upper surface of the armrest, providing rigidity, immobility, and structural stability.

To operate the music stand, after convenient location in it, extend the armrests (3) forward along the guides to the pin (10). Expand the working surface (8) of the music stand by 270 degrees in the vertical plane, lowering it to the armrest. The product is ready for use.

Thus, the claimed utility model due to the fact that the working surface of the music table rests on the front upper surface of the armrest, allows stiffness, immobility, stability of the structure.

Claims (1)

A music stand consisting of sidewalls with armrests connected by transverse slats, a seat, a backrest, a transformable working surface, characterized in that the armrests have the ability to move relative to the sidewalls and are provided on the side surfaces with through grooves in which pins are mounted fixed to the sidewalls, and omer loops are installed on the end surfaces of the armrests and the edges of the transformable working surface.