RU218202U1 - ADJUSTABLE lumbar support - Google Patents

Abstract

The utility model relates to the furniture industry, in particular to overhead adjustable lumbar supports. An adjustable lumbar support is proposed, which consists of a frame with several retractable segments installed one above the other. Each retractable segment consists of two vertical bars, between which a tape of elastic material is stretched. A rail is attached perpendicularly to each plank, movably mounted with the possibility of fixing in the guides on the frame. Straps can be installed on the frame for fastening the stop. The slats can be equipped with magnetic holders for installing interchangeable pads. The technical result, which the proposed utility model is aimed at, is to ensure precise adjustment of the position of the lumbar support and maintain this position during operation, as well as providing the possibility of using various orthopedic pads in any combination.

Description

The proposed utility model relates to the furniture industry, in particular to overhead adjustable lumbar supports.

Known chair or similar device having a frame consisting of spaced apart parallel guides, between which there are many eccentric rungs that define the support contour for the seat and back of the specified chair. Several bars are provided, each with a separate offset fastening, whereby a selection of offsets for a fixed position of the bars is achieved, while there is flexible cushioning above the bars for a certain support of the person sitting on them (according to US patent 3990742, A47C 27/00, A47C 3/00 , published 09.11.1976).

The disadvantage of the known solution is the complexity and small, stepped range of adjustment of the shape of the back.

Armchairs with adjustable backrests are known according to patents RU 2610417, US 20110006570, KR 100916753, US 5328245, which have a fundamentally similar design, where the backrest consists of horizontally movable longitudinal segments, due to which it is possible to adjust the shape of the backrest.

The disadvantage of this solution is the complexity of the design. Also, the adjustable segments are integrated into the back of the chair and cannot be used on other pieces of seating furniture.

As a prototype for the proposed utility model, according to the technical essence, a removable seat support was selected, including injection elements interconnected and fixed on a common shell. The removable support is provided with elements of its fastening located at the corners of the common shell. The overall shell is made sectional with pneumatic chambers located inside each section and detachable hoses with pressure elements located outside and connected to the pneumatic chambers (according to patent RU 23557, A47C 7/42, publ. 27.06.2002).

The disadvantage of this removable support is the lack of rigidity and flexibility of the pneumatic chambers with a small amount of air inside, which interferes with the precise positioning of the human back. In addition, it is required to ensure the tightness of the pneumatic chambers, otherwise the correctly configured position will change during operation.

The technical result, which the proposed utility model is aimed at, is to ensure precise adjustment of the position of the lumbar support and maintain this position during operation, as well as providing the possibility of using various orthopedic pads in any combination.

The specified technical result is achieved in that the adjustable lumbar support consists of a frame with several retractable segments installed one above the other and is characterized in that each retractable segment consists of two vertical bars, between which a tape of elastic material is stretched, a rail is perpendicularly attached to each bar, movably mounted with the possibility of fixation in the guides on the frame.

In addition, straps for fixing the stop can be installed on the frame.

In addition, magnetic holders can be installed on the slats for installing interchangeable pads.

The proposed utility model is illustrated by the following drawings:

fig. 1 - adjustable lumbar support, perspective view from the front;

fig. 2 - adjustable lumbar support, rear axonometry;

fig. 3 - adjustable lumbar support, front view;

fig. 4 - adjustable lumbar support, side view;

fig. 5 - adjustable lumbar support with replaceable pads;

fig. 6 - adjustable lumbar support mounted on a chair.

The adjustable lumbar support (Fig. 1-4) consists of a frame 1 with guides 2 installed on it and retractable segments 3. Each retractable segment 3 consists of two vertical bars 4, between which a tape 5 of elastic material is stretched. A rail 6 is perpendicularly attached to each bar 4, movably mounted with the possibility of fixation in the guides 2. The fixation of the rails 6 in the guides 2 can be carried out using elastic clamps (not shown in Fig.) loosened by buttons 7. Any other methods of fixation are possible, for example, threaded or cam (eccentric) clamp. On the frame 1 there are belts 8 for fixing the stop on the furniture.

On the slats 4 of the retractable segments 3, magnetic holders 9 are installed for installing replaceable linings, for example, a lining with adjustable lateral fixation 10 (Fig. 5) and a lining with a needle applicator 11.

Application.

The adjustable lumbar support is designed for individual correction of the position of the lower back and thoracic region while sitting. Correction of the position is achieved due to the ability to change, extend and fix the retractable segments 3, as well as due to the anatomical pads 10 and 11, fastened with the help of magnetic holders 9, which, under the pressure of the back, bend, taking the form of body bends in the frontal plane.

Adjustable lumbar support 12 (Fig. 6) is installed on furniture intended for sitting, for example, a chair 13 and is fixed at the level of 3-5 lumbar vertebrae using belts 8. Then, using retractable segments 3, an individual adjustment is performed for the user, taking into account his anthropometric data.

The ability to individually adjust the retention of the correct position of the curves of the spine makes the emphasis indispensable for people who spend a long time in a sitting position. Retractable segments are adjustable in the frontal plane and provide a precise setting that is maintained throughout the entire period of use. Magnetic holders allow you to use a variety of interchangeable pads.

Thus, the solutions used in the utility model allow for precise adjustment of the position of the lumbar support and maintaining this position during operation, as well as the possibility of using various orthopedic pads in any combination, and thereby contribute to the achievement of the technical result.

Claims (3)

1. Adjustable lumbar support, consisting of a frame with several retractable segments installed one above the other and characterized in that each retractable segment consists of two vertical bars, between which a tape of elastic material is stretched, a rail is perpendicularly attached to each bar, movably mounted with the possibility fixing in the guides on the frame. 2. An emphasis according to claim 1, characterized in that belts are installed on the frame for attaching the emphasis. 3. An emphasis according to claim 1 or 2, characterized in that magnetic holders are installed on the slats for installing replaceable linings.

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