RU2497427C1 - Orthopaedic chair - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: invention relates to furniture and may be used domestically for work, study, rest as well as for health recovery and rectification of posture disorders and is aimed at increasing comfort of the user remaining in a seated position for a long time. The orthopaedic chair contains the base seat, an ankle support positioned under the basic seat and positioned so that to enable adjustment in terms of height, tilt and distance relative to the basic seat. The seat is composite, consisting of two parts: the main stationary part and the auxiliary one. The auxiliary part represents the front part of the ankle support during its fixation in the upper position. The ankle support is "П"-shaped, fixed on movable guides that, on the one hand, are pivotally attached to posts secured to the seat, and on the other hand - move along the adjustment bracket so that to enable fixation.

EFFECT: improvement of design.

2 cl, 5 dwg

Description

The invention relates to furniture and can be used in everyday life, for work, training, leisure, as well as for the purpose of healing and correcting violations of posture. Particularly relevant is the use of the chair by yogis, for example for meditation.

Known invention "Orthopedic chair" described in the patent of the Russian Federation No. 2012287, published 05/15/1994, the Orthopedic chair contains a base mounted on it with a seat with the ability to change height and at least one backrest on the stand, pivotally connected to the base. The base is made with a longitudinal groove for fixed movement of the seat in the horizontal plane, and the rack is equipped with an additional back and armrests, while both backs are mounted on the rack with the possibility of fixed movement in the vertical plane.

The disadvantage of this known technical solution is the high load on the lumbar spine, as well as the lack of adjustments to establish a comfortable position, as a result of which daily and prolonged use by the user may cause gradual deformation of the intervertebral discs and the acquisition of diseases of the spine.

Known chair "Health" described in the patent of the Russian Federation for the invention No. 2159568, published on 11.27.2000). The chair is an orthopedic chair that contains a base and a telescopic stand fixed on it with an emphasis on the lower leg, which is adjustable in height, tilt and distance to the seat. The seat is equipped with a support mechanism for adjusting the angle of inclination, made in the form of a handle and a stop with a bevel of 20 °, and is installed with the center of gravity shifted forward. The base is made in the form of two axes and a cross member connecting the middle of the front axle with the upper part of the telescopic stand and its lower part with the middle of the rear axle. Both axles are equipped with roller bearings.

The disadvantage of this known technical solution is the high load on the lumbar spine, as well as the lack of adjustments to establish a comfortable position, as a result of which daily and prolonged use by the user may cause gradual deformation of the intervertebral discs and the acquisition of diseases of the spine. The seat adjustment and the adjustment of the emphasis under the shins are dependent on each other, which does not allow you to accurately adjust the position of the body of the operator.

The closest analogue is known, selected as a prototype and described in RF patent No. 71229, published on March 10, 2008. The orthopedic chair contains a seat equipped with an adjustment mechanism having the form of an extended tubular element and an emphasis under the lower leg located under the seat and installed with the possibility of adjustments in height, tilt and distance to the seat, while the seat and emphasis under the shins are placed on intersecting rails, each of which has roller bearings at the free end, adjusting the mechanism is placed between the intersecting rails at an acute angle to the roller bearings of the rail on which the support for the lower legs is mounted, while the rail with the seat placed on it has a through long closed slot, and the rail with the emphasis placed on it passes through the slot with the possibility of a fixed moving in it.

In the known technical solution, a significant number of disadvantages, namely, the seat adjustment and the support for the lower legs are dependent on each other, which does not allow for accurate adjustment of the position of the operator’s body, the load on the lumbar spine is also high, the seat is always at an angle, there are not enough adjustments for setting a comfortable position, as a result of which, during daily and prolonged use by the user, gradual deformation of the intervertebral discs and the acquisition of diseases of the spine.

The objective is to increase comfort during prolonged sitting, and expand the functionality of the chair.

The technical result of the claimed invention is to remove the load from the spine, reduce the load of the seat, by increasing the contact area of the lower leg with emphasis under the lower leg, the adoption and long-term holding of a physiologically comfortable position, with the possibility of muscle micro-adjustments of the posture, a wide range of chair adjustments, which allows adjustable load on all links of the operator’s body.

The claimed invention helps to establish the vertebrae in a normal position, providing the prevention of osteochondrosis, helps psychological relief.

The specified technical result is achieved in that the orthopedic chair containing the main seat, an emphasis under the lower leg, located under the main seat and installed with the possibility of adjustment in height, tilt and distance to the main seat, characterized in that the seat is made of a composite, consisting of two parts - the main fixed and additional detachable, with the additional detachable part being the front part of the support under the shins when fixing it in the upper position, the support under the shins is made U-shaped, fixed n on movable rails, which are pivotally mounted on one side to racks attached to the seat and, on the other hand, are movably fixed along the adjustment bracket, and the orthopedic chair can be equipped with a height-adjustable backrest with armpits that are adjustable in distance from each other and installation angles, and armrests.

Due to the fact that the seat is composed of two parts — the main fixed and additional detachable, the additional detachable part being the front of the lower leg support when it is fixed in the upper position, the lower leg emphasis is made U-shaped, mounted on movable guides, which, on the one hand, are pivotally mounted on racks attached to the seat, and on the other hand, move along the adjustment bracket with the possibility of fixation, and the orthopedic chair can be equipped with ysya adjustment backrest with axillary holders, which are governed by the distance between themselves and the installation angles, and arm rests, the said technical result is ensured.

The seat is detachable, consisting of two parts - the main and additional, which allows the use of a fixed horizontal position of the main part when moving from a standard pose to a pose with additional emphasis on the lower legs and vice versa.

Other solutions require tilting the seat when taking a posture with additional emphasis on the lower legs, which leads to slipping of the seat from the seat and, as a result, to difficulties in micro-correction of the posture using the muscles of the legs, which, of course, is necessary for a long time in the same position.

The additional part of the seat is also part of the support under the shins. When lowering the stop, the composite seat is shortened, allowing the sitting person to bend his legs, and when lifting the stop, it is rigidly fixed in the upper position, as a result of which the seat of the chair acquires dimensions and shape close to the standard ones and providing comfortable work in a standard position.

Underarm holders, due to their location in the sensitive area of the human body, should provide a high degree of convenience for the user, not create unnecessary discomfort, and, therefore, be miniature and amenable to dynamic adjustment during operation both according to the center distance and height from seat and steering angle in the horizontal plane. And, if necessary, they should be easily cleaned to the “inoperative position”. At the same time, significant demands are placed on axillary holders for the load when changing and adjusting the posture, up to half the person’s weight.

Known designs of armchairs with axillary holders do not take into account (omit) one or more of the above requirements.

The proposed design of the axillary holder is simple in execution and, at the same time, meets all the requirements.

The combination of the claimed features allows you to remove the load from the spine, reduce the load of the seat, by increasing the area of contact of the lower leg with emphasis under the lower leg, to accept and maintain a physiologically comfortable position for a long time, with the possibility of muscle micro-adjustments of the posture, provides a wide range of chair adjustments, which allows adjustable load on all links of the operator’s body.

The inventive orthopedic chair has novelty, differing from the prototype of the above features, and ensures the achievement of the technical result perceived by the applicant.

This technical solution does not explicitly follow from the prior art, therefore, the invention has an inventive step.

The invention can be widely used in everyday life, for work, training, leisure, as well as for the purpose of healing and correcting violations of posture.

The essence of the proposed device is illustrated by drawings, which show:

figure 1 is a side view;

figure 2 is a front view;

figure 3 is a rear view;

figure 4 - emphasis under the lower legs;

figure 5. - side view.

The orthopedic chair contains a seat 1, a back 2 with axillary holders 3, armrests (not shown in the diagram), an emphasis 4 under the shins. The back 2 is made with the possibility of adjusting it in height and angle of inclination, axillary holders 3 are fixed on the back. Each holder 3 is made in the form of a metal tube 5 bent at a right angle, one end of which (reference) is finished with soft material 6. The other ends 7 of the holders are worn on the upper ends of the round rods 8 having through holes in their lower ends and secured with their help on the horizontal axes 9 of the rear of the back of the chair, located at the same distance on both sides of the center line of the back. The seat 1 is made of two parts, one directly the seat 1, the second - emphasis 4 under the shins. The emphasis 4 for the lower leg is made U-shaped and fixed on two ball guides 10, which are pivotally mounted on one side of the fixed posts 11 attached to the seat 1. On the other hand, they are fixedly moved along the adjusting bracket 12 together with the emphasis 4 for the lower leg. The adjustment bracket 12 is fixedly attached to the seat 1. The adjustment bracket 12 has in the lower part of the hole 13 for fixing at different heights of the support 4 under the lower leg with a pin 14, and in the upper part of the support 15, for fixing the stop 5 under the lower leg close to the main part of the seat one.

During operation, you can make the necessary adjustments to ensure the desired position of the body of the operator. The position of the operator in the “standard” position is possible, when the emphasis under the shins is fixed close to the seat, while the seat acquires dimensions and shape close to the standard ones and providing comfortable work in the standard position. When lowering the emphasis on the shin, the composite seat is shortened, allowing the person sitting to bend his legs and lean his legs on the stop. The support under the shins is adjustable in height, tilt and distance to the seat, regardless of these adjustments, the seat always remains in a horizontal position. To adjust the emphasis under the lower leg, it is necessary to push it forward and slightly up from the “standard” position, then set the pin to the desired height, lower the emphasis under the lower leg until it touches the pin and adjust the position by moving the emphasis under the lower leg along the guides. To set the support under the shins in the “standard” position, it is necessary to slide it along the guides forward, lift it up and push it to the end, while the support under the shins will lie on the support and the seat will take the standard dimensions. The design of the axillary holders allows you to ensure rotation in the horizontal plane right up to the "inoperative position" when the axillary holders are not involved; choose the center distance corresponding to the size of the body by changing the angle of inclination of the holder relative to the vertical axes. The distance from the seat to the support ends of the holders is regulated by raising and lowering in the vertical plane of the chair back.

Claims (2)

1. An orthopedic chair containing the main seat, an emphasis under the shins, located under the main seat and installed with the possibility of adjustment in height, tilt and distance to the main seat, characterized in that the seat is made integral, consisting of two parts - the main fixed and additional detachable moreover, the additional detachable part is the front part of the support under the lower leg when fixing it in the upper position, the emphasis under the lower leg is made U-shaped, mounted on movable guides, which are on one side pivotally mounted on racks that are attached to the seat, and on the other hand move the adjusting bracket fixable. 2. The orthopedic chair according to claim 1, characterized in that it has a height-adjustable backrest with axillary holders that are adjustable in distance between each other and the installation angles, and armrests.

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