RU237381U1 - Headrest bracket - Google Patents

Abstract

This utility model relates to office and home furniture. The headrest bracket comprises three plates arranged perpendicular to each other. The outer plates have openings for attaching to the backrest frame and for adjusting the headrest's forward and backward movement and locking its position, while the side plate consists of two separately positioned plates. All plates are secured by a welded joint. The technical result enables the installation of a headrest in a chair with adjustable horizontal positioning and horizontal positioning relative to the backrest, ensuring that the headrest remains in the desired position relative to the chair's backrest, without shifting under load. 1 Item, 2 Figs.

Description

The utility model relates to the field of office and home furniture, namely to devices for creating comfort during long periods of work at a computer.

Some office chairs use headrests attached to the back of the chair. These are most often attached to the backrest upholstery or the backrest frame.

Headrests attached to the backrest frame typically have one, two, or three levels of adjustment. These adjustments include up-down, forward-backward, and left-right rotation. Separate brackets connecting the headrest and backrest are used to adjust these positions.

A headrest bracket for an office chair is known (US 2011095591 A1; IPC A47C 7/38; published 04/28/2011), in which the position of the headrest in the forward-backward direction is adjusted by turning the bracket relative to the axis of the bracket fixed to the backrest frame.

The disadvantage of this solution is the complexity of the design and the fact that when the bracket is turned, the position of the headrest also changes in the up-down direction.

An adjustable headrest for a chair is known (US 11950708 B2; IPC A47C 1/10, A47C 3/00, A47C 7/38; published 07/27/2023), in which the headrest moves back and forth by moving a sliding rod in a groove formed by a stop block and a support rod.

The disadvantage of this solution is its complexity of implementation.

An adjustable headrest device is known (US 6616236 B1; IPC A47C 7/36; published 09.09.2003), in which the headrest moves back and forth by moving guides fixed to it along an opening and fixing the position with a rotating element in grooves.

The disadvantage of this solution is the complexity of its manufacture.

In chairs that have a backrest and a headrest, with platforms for attaching a bracket that connects them, simple designs can be used that allow the headrest to move relative to the back of the chair in one direction and ensure the rigidity of the structure at the same time.

The technical challenge is to create a simple headrest bracket design with a minimum number of parts, ensuring the headrest can be moved and positioned horizontally relative to the back of the chair, without vertical displacement, while ensuring the rigidity of the structure.

The technical result is the ability to equip inexpensive chairs with a headrest with a horizontal adjustment function and to clearly position the headrest horizontally relative to the back of the chair in the position required by the person, without shifting the position under load.

The technical result is achieved by a headrest bracket consisting of three groups of mutually perpendicular plates, the outermost of which have holes for fastening and adjusting the position and are parallel to each other.

The essence of the utility model is explained by drawings of a specific example of the implementation of a headrest bracket, where Fig. 1 shows the design of the bracket, and Fig. 2 shows the bracket with the headrest installed on the back of the chair.

The headrest bracket includes an upper plate 1, a side plate 2 and a lower plate 3.

The plates are fixed together by means of a welded connection.

On the top plate 1, the holes are made in the form of a groove, one side of which has recesses for fixing the fastening element.

The bottom plate 3 has holes for attaching to the back.

In this embodiment, side plate 2 is made of two separately positioned plates, as this is the simplest to manufacture and most reliable in terms of load-bearing capacity. Alternatively, side plate 2 can be manufactured with a stiffening rib having an L-shaped or U-shaped cross-section.

In Fig. 2, in a specific embodiment of the design, it can be seen that the headrest bracket 4 is secured to the backrest frame 5 by means of a bolted connection 6. The headrest 7 is secured to the headrest bracket by means of wing nuts 8.

The horizontal position of the headrest is adjusted as follows. By rotating thumbscrews 8, the threaded connection is loosened. Headrest 7 can then be moved forward or backward along the grooves of plate 1, horizontally relative to the seat back, without vertical displacement. Once headrest 7 reaches the desired position, it is secured in the grooves of plate 1 by tightening thumbscrews 8.

Claims (2)

1. A headrest bracket consisting of an upper plate, two side plates and a lower plate, fixed to each other perpendicularly in such a way that the upper and lower plates are parallel to each other and have openings for fastening to the back of the chair and openings in the form of a groove with a recess for fastening and adjusting the position of the headrest relative to the back of the chair horizontally, without displacement vertically, and also the side plates are made separately located, while all the plates are fixed together using a welded joint. 2. A headrest bracket according to paragraph 1, characterized in that the side plates are made with a stiffening rib and have an L-shaped or U-shaped profile in cross-section.