RU16495U1 - STAIRWEAR CHAIR - Google Patents

Abstract

ABSTRACT CHAIR

the utility model provides the possibility of removable fastening of the chair to the floor anywhere in the compartment of the aircraft cabin without reference to any structure, while ensuring compliance with the requirements of aviation rules, in particular the impact of dynamic shock loads. To do this, in the cabin crew chair, containing the backrest, seat, sidewalls and harness, the sidewalls, which are the main load-bearing elements of the chair, consist of power walls connected to the inserts and brackets, while the attachment points of the harness and seat are located on the bracket so as to provide short circuit to the shortest path for transferring the arising loads from the harness, system and seat to the points of attachment of seats to the floor located on the base of the bracket.

Description

STAINLESS CHAIR

The proposed utility model is designed to accommodate the flight attendant and accompanying persons in the vehicle to ensure a comfortable and safe sitting position in the seat at all stages of flight, including ground movement, takeoff, landing and emergency conditions.

Known structural design of the navigator’s seat from the book Aircraft Design avt.shulzhenko MN. publishing house engineering, Moscow I97ir.

This chair contains a mounting heel, an armrest bracket, a backrest frame, an armrest, a handle for vertical movement of the chair, a locking mechanism for the armrests, the reason that prevents obtaining the desired technical result when using the known design is the need to install special guide rails protruding above the floor level, which restricts the use of a known seat anywhere in the passenger cabin on an airplane to the closest prize in total The idea of the proposed utility model is the design of the aircraft folding seat for the flight attendant, known from the description of German patent No. 3790556, class. In 64D11 / 06, published 3I.IO.96r.

This design contains a vertical back, with which the hinged part of the seat is pivotally connected, occupying a working horizontal or initial vertical position. Hinges are installed on the lateral surfaces of the backrest, connected to the bulkhead of the compartment of the aircraft and providing a rotational movement of the backrest along with the hinged part from the initial position located near the bulkhead to the working position, which is separated from the bulkhead by a certain distance. There is a side nozzle fixed to the working position on a support. To return the backrest and the hinged part to its original position, use -.48262 ooo

 IPC: V6D11 / 06

The springs are connected, a cone pin is installed on the bulkhead to fix the hinged seat, which interacts in the initial position with the locking lever mounted on the lower edge of the back, and there is a counter cone hole in the lever.

The reason that impedes obtaining the required technical result when using this structural design of the seat, as described in the book Shulzhenko MI. It is that the backgammon, with the safety of a person sitting in a chair under conditions of operational and static loads, requires that the seat-seat-seat belt system ensures safety from the effects of dynamic, shock loads in accordance with aviation regulations (see PARADISE S 25.562). When exposed to a shock impulse in the vertical-longitudinal and longitudinal-lateral direction, it is necessary that the seat belts maintain a fixed position, and the sitting position of the seat and seat belts does not exceed the permissible values specified in the aviation regulations.

the task to which the claimed utility model is directed is the possibility of removable fastening of the chair to the floor anywhere in the compartment of the aircraft cabin without reference to any structure, while ensuring compliance with the requirements of aviation regulations, in particular from the effects of dynamic shock loads.

The specified technical result when using the utility model is achieved by the fact that, in the cabin crew chair, which contains the backrest, seat, sidewalls and the tethered system, the main load-bearing elements of the sidewall chair, consisting of power walls connected to the inserts and the brackets, absorb all the static and dynamic loads passing from the harness and the seat, while the attachment points of the harness and the seat are located on the bracket in such a way as to provide a short circuit or the shortest path for transmission penal loads from the harness and the seat to the points of attachment of the chair to the floor, located on the sole of the brackets.

The choice of a system of stiffnesses, reinforcing elements and power, perceptual flow, both calculated statistical and dynamic shock loads, is achieved by the appropriate choice of position, geometric dimensions, and type of materials used, which provide energy absorption through deformation while preserving the load-bearing capacity of all power elements of the frame and not exceeding the permissible loads sitting in a chair.

Thus, the differences in the proposed design of the flight attendant chair provide energy absorption through deformation while maintaining the load-bearing capacity of all the power elements of the chair and not exceeding the permissible loads on the person sitting in the chair. The essence of the utility model is illustrated by drawings, where Fig. 1 is a front view of a flight attendant chair; figure 2 side view.

Information confirming the possibility of implementing a utility model is as follows.

the flight attendant’s chair contains a metal frame I, two sidewalls 2t seat 3, a backrest 4 and a tie system 5. The sidewalls consist of power walls 6, an arm 7 and mounting elements 8. The curtain 3 consists of a frame 9 and a pillow and is hinged to the frame i armchairs. Under the seat in the frame of the chair there is a beggar, Z8kryva: eaten by the sash II with a lock - latch.

Depending on the version of the chair (to the right or left), a communication prefix is attached to the sidewall of the frame.

The tie system 5 consists of a mechanism for retracting waist belts 12, a buckle with an adjustable clip 13, a lock 14 with an adjustable clip, two shoulder straps 15 and a curtain designed to hold the waist belts when moving the seat from the working position to the marching position.

In the initial position, the seat 2 is vertically in contact with the backrest 3.

The working position is created by the flight attendant in the chair; springs are used to return the light to its original position.

Thus, the above information indicates that the design of the flight attendant seat claimed in the quality of the utility model provides removable fastening to the floor anywhere in the compartment of the aircraft cabin without reference to any structure, while performing all the necessary functions, which confirms the feasibility of the utility model, the achievement of the above technical result, from the above it also follows that the claimed utility model meets the criterion of industrial applicability.

Claims (1)

A flight attendant chair comprising a backrest, seat, sidewalls and attachment system, characterized in that the sides, which are the main load-bearing elements of the seat, consist of power walls connected to the inserts and brackets, while the attachment points of the attachment system and seat are located on the arm so that provide a short circuit for transferring the arising loads from the harness and the seat to the attachment points of the chair to the floor, located on the sole of the brackets.