SI23281A - Seat for active sitting - Google Patents

Abstract

The seat for active sitting with the construction solution enables a completely continuous flexibility of the seat when using on a standard chair with fixed sitting surface or screwed to a standard hydraulic base. The seat for active sitting consists of two panels (4) and (6) which are interconnected in the centre by a cardan joint (2) which enables continuous inclinations by 360 degrees. The absorbing of inclinations and adjusting of the equilibrium position is performed by an inclination absorber (5) made of expandable foam. The seat (1) together with the coating (7) is via a wooden panel (3) attached to the upper panel (6)

Description

ACTIVE SEAT SEAT

The subject of the invention is an orthopedic seat for active sitting, which allows dynamic (active) sitting in an ordinary chair, a normal office chair or a wheelchair.

A technical problem that is successfully solved by the present invention is a movable seat structure that will allow optimum healthy sitting so that the back muscles are constantly active when sitting and therefore the pressure on the intervertebral discs is changeable and the implementation will be useful for sitting on existing conventional sitting surfaces or as a stand-alone seat with footrest and backrest.

Several solutions are known in the field of active sitting, since it is known that sitting on regular, even ergonomically fixed chairs with fixed seating for several hours causes even pressure in the spine, which causes more pressure on one part of the intervertebral disc, which can lead to earlier degeneration. .

One known solution is patent US 7387339 B2. According to this document, both the seat and the backrest of the chair are divided into two movable parts, so that during the sitting it allows the left and right parts of the body to alternate. In this solution, while the body activates the back muscles while sitting, the body's movement is not continuous throughout the 360 ° angle.

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Another well-known solution for a moving saddle surface is described in U.S. Pat. No. 5746481, which has a seat with a movable rubber base. This solution allows active sitting, but the rubber membrane is very sensitive to wear.

The solutions are also known from US 6159172 and US 5022385, which is a stand-alone biazine that allows tees to move while seated, but these solutions are structurally complex and do not offer complete active seating in all directions as they are more focused on body massage during sitting.

The active seating solution is also given in document Sl 20508 A. Here, the seat is attached to a flexible element, a spring. This chair enables active seating in all 360 ° angles and therefore solves the set technical problem.

The design solution, however, does not offer the possibility of a stand-alone active seat that could be used on a normal office chair or wheelchair. In addition, due to the leakage of the spring, the seat movement is slightly more restricted to the side of the grip.

All of the above solutions are either incomplete active seating (US 6159172 and US 5746481) or otherwise active seating solution (Fig 20508 A), which requires a specially adapted chair base structure.

According to the invention, the problem is solved by an active seat, which transforms an ordinary chair, office chair or wheelchair into an active sitting chair. In this case, the active seat is placed on the fixed seat of the existing chair.

An additional option offered by the Active Seat Seat is its construction design, which allows it to be easily screwed onto most existing office chair bases without any alteration. In this case, it acts as a stand-alone seat.

The seat base for active sitting is a special universal joint with the possibility of continuous movement of the seat at a full 360 ° angle, so that the loads of the body are evenly distributed.

The seat for active seating according to the invention is formed (according to the accompanying figure);

lower panel (6) with center pivot screw, central panel (4) with center pivot, cardan joint (2) with 360 ° continuous movement, wooden panel (3), padded seat (1) , pur foam tilt damper (5) and coil (7). The upper plate (4) and the lower plate (6) and the universal joint (2) can be made of metal or plastic.

The universal joint (2) centered between the plates (4) and (6) allows the padded seat (1) to move freely around the point of attachment. This design provides the basis for active seating throughout the 360 ° range. Tilt dampener (5) made of pur foam is used to mitigate the tilt and return the padded seat (1) to neutral position. The tilt damper (5) can also be replaced by a flexible element.

Claims (1)

PATENT APPLICATION Active seating position characterized by the fact that the PTO joint (2) is centered between the upper plate (4) and the lower plate (6) to which a padded seat (1) is screwed over to which the cover (7) is sewn. ), and the balance adjustment and tilting damping are solved by means of a curved tilt damper (5).