RU1777806C - Elevator chair - Google Patents

Abstract

SUMMARY OF THE INVENTION 1 lift chair comprises a telescopic stand with a seat mounted on a support and pedals. The pedal moving means includes a rocker arm pivotally mounted in the upper part of the strut, on which levers spring-loaded relative to one another and interacting with free ends with the strut are pivotally mounted on different sides of its pivot axis. The telescopic stand consists of two cylinders. The outer cylinder is provided with a through longitudinal groove and two diametrically arranged rows of holes with which the free ends of the levers interact. The inner cylinder is provided with a through longitudinal groove and diametrically located through grooves in the upper part to accommodate the arms of the rocker arm and two longitudinally located through grooves in the lower part to accommodate the ends of the levers. The pedals are mounted at the ends of the beam. The pedal lowering means consists of a cylindrical slide placed inside the strut and spring-loaded to the beam with the possibility of sliding on the surface of the levers, and pedals mounted on the slide with the possibility of movement in the through longitudinal grooves of the strut cylinders. The seat is mounted on a stand with a bracket that can be rotated in the elevator position by 180 °. 1 wpp, 5 ill. next to

Description

FIELD OF THE INVENTION This invention relates to furniture, in particular to chairs that can be converted into a lifter for domestic use.

The purpose of the invention is to simplify the design

In FIG. 1 shows a chair lift, front view; in FIG. 2 - the same, top view with the seat removed; in FIG. 3 - the same side view; in FIG. 4 - the same vertical section of the rack; in FIG. 5 - the same general view.

The lifting chair comprises a support 1, a telescopic stand 2 mounted on a support with a seat 3 and a back 4, pedals 5, pedal moving means, including a rocker arm pivotally mounted in the upper part of the strut 6. on which levers are pivotally mounted on different sides of its rotation axis 7 8, spring loaded one relative to the other, and

interacting with the free ends with the strut 2, the pedal lowering means (in Fig. 4 rotated 90 ° for the sake of clarity), consisting of a cylindrical slide 9 located inside the strut 2 and spring-loaded to the rocker arm 6 with the possibility of sliding over the surface of the levers 8, and pedals 10.

The telescopic strut consists of two cylinders 11 and 12. The outer cylinder 11 is provided with a through longitudinal groove 13 and two diametrically arranged rows of holes 14, with which the free ends 15 of the levers 8 interact. The inner cylinder 12 is equipped with a through longitudinal groove 16 and diametrically located through the grooves 17 in the upper part to accommodate the arms of the rocker arm 6 and two longitudinally arranged

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through grooves 18 in the lower part to accommodate the ends 15 of the levers 8. The pedal 10 is mounted on the slider 9 with the possibility of movement in the through longitudinal grooves 13 and 16 of the cylinders of the telescopic stand. The pedals 5 are installed at the ends of the rocker arm 6. The seat 3 is mounted on the rack 2 using the bracket 19 with the possibility of rotation in the position of the lift 180 °. The ends 15 of the levers 8 are made in the form of paws. The spring 20 presses the .lapki to the walls of the rack.

Chair lift works as follows. The seat and back are rotated 180 °. For ease of lifting, a chair seat may be used as the first step. Then the feet step on the pedals 5. With the transfer of the user's weight to one of the pedals, the opposite pedal moves upward, while the foot of the corresponding lever also slides upward. Under the action of the spring 20, the tip of the foot is sequentially mounted in the holes 14. Thus, by depressing the pedals alternately, the inner cylinder is lifted to the required height.

At the end of the work, the entire movable part of the lift chair is descended as follows. The pedal lowering means 5 is pressed onto the pedal 10. The slider 9 slides over the surface of the levers 8} and presses against each other, while the tabs exit the holes 14. The inner cylinder 12 is lowered by braking due to the friction of the slide on the cylinder surface. The seat is rotated to its original position.

Claims (2)

1. A lifting chair comprising a telescopic mounted on a support a rack with a seat, pedals, pedal movement means including spring-loaded levers pivotally mounted interacting with the free ends of the rack and pedal lowering means, in order to simplify the construction, the pedal movement means further includes a pivotally mounted upper part struts, a telescopic strut consists of two cylinders, the outer of which is provided with a through longitudinal groove and two diametrically arranged rows of holes with which the free ends of the levers interact, and the inner cylinder is equipped with a through longitudinal groove and diametrically located through grooves in the upper part to accommodate the arms of the rocker arm and two longitudinally extending through grooves in the lower part for accommodating the ends of the levers, the pedal lowering device consists of a cylindrical slide placed inside the strut and spring-loaded to the beam with the possibility of sliding on the surface of the levers, and a pedal mounted on the slide with the possibility of movement in the through longitudinal grooves of the cylinders telescopic rack, while the levers are mounted on the beam on opposite sides of its axis of rotation and are spring loaded one relative to the other, and the pedals are mounted on the ends of the rocker. 2. The lift chair according to claim 1, with the exception of the fact that the seat is mounted on a rack using a bracket with the possibility of rotation in the lift position on 180i. (DUS. IDU2.2 f4 to FIAZ n I n V;, ..- vIM G-; -.USH , va (M iS 0 PueS