RU157677U1 - FURNITURE TRANSFORMATION MECHANISM - Google Patents

Abstract

1. A furniture transformation mechanism, comprising: a lower bar (1) for attaching to a fixed base (2), an upper bar (3) for attaching to a seat (10) furniture, the first (5) and second (6) curved side bars, articulated connecting the upper (3) and lower (1) strips to form a parallelepiped between the points of hinge joints, a folding seat support leg (7), the upper end of which is pivotally connected to the upper bar (3), at least one intermediate bar, pivotally connecting the first side level (5) with folding support leg (7) of the seat, with especheniem possible folding and unfolding of the legs (7) for lifting and lowering the upper plate (3) .2. The mechanism according to claim 1, comprising a first intermediate bar (8) pivotally connected to the first side bar (5), and a second intermediate bar (9), pivotally connecting the first intermediate bar (8) and the support leg (7) at its upper end while the second intermediate strip (9) has a shorter length than the first intermediate strip (8). 3. The mechanism according to claim 1, in which the first side bar (5) is connected to the upper bar (3) in its middle part. The mechanism according to claim 1, wherein the upper end of the support leg (7) is connected to the end of the upper bar (3). 5. The mechanism according to claim 2, in which the curved first side strip (5) has an upper (5a) and lower (5b) part located at an angle to each other, as well as a section (5c) connected to the upper part (5a) located perpendicularly the upper part (5a), while the first intermediate strip (8) is pivotally connected to the said section (5c) of the first side strip (5) .6. The mechanism according to claim 5, in which the second side bar (6) has an upper (6a) and lower (6b) part located at an angle to dr

Description

The utility model relates to mechanisms for transforming upholstered furniture with a lifting seat and can be used in the construction of sofas or armchairs.

The prior art various designs of mechanisms for transforming furniture with a raised part to move the seat (see, for example, US patent 2050658, 08/11/1936, French patent FR 1316688, German application DE 102008051735, 04/22/2010, RF patent RU 2524002, 07/27/2014 )

The closest analogue of the claimed utility model is the mechanism known from RF patent RU 2524002, 07.27.2014. The mechanism includes a lower bar for attaching to a fixed base of furniture (linen box), an upper bar for attaching to a raised seat of furniture, the first and second curved side strips that articulate the first upper and lower strips to form a parallelepiped between the points of articulation. In this case, a fixed supporting leg is attached to the seat. When lifting, the seat together with the leg moves in the direction from the back, which ensures the folding of furniture. The disadvantage of the prototype is that due to the presence of a fixed leg, it is necessary to reduce the length of the base (linen box) for unimpeded transformation of the mechanism.

The objective of the claimed utility model is to eliminate the drawback of the analogue, and create a mechanism that allows the use of standard bases (linen boxes) without reducing their length.

The technical result of the utility model is to provide a compact transformation of the mechanism without touching the base and reducing its length.

The specified technical result is achieved due to the fact that the furniture transformation mechanism contains a lower bar for attaching to a fixed base, an upper bar for attaching to a furniture seat, the first and second curved side bars that articulate the upper and lower bars to form a parallelepiped between the points of articulation, folding support leg of the seat, the upper end of which is pivotally connected to the upper bar, and at least one intermediate bar, pivotally connecting the first side bar with Ok support leg, ensuring the possibility of folding and unfolding of the legs when lifting and lowering the upper plate.

In addition, the specified technical result is achieved in special cases of the implementation of the utility model due to the fact that:

- the mechanism includes a first intermediate bar pivotally connected to the first side bar, and a second intermediate bar pivotally connecting the first intermediate bar and the support leg at its upper end, while the second intermediate bar has a shorter length than the first intermediate bar,

- the first side bar is connected to the upper bar in its middle part,

- the upper end of the support leg is connected to the end of the upper bar,

- the curved first side strip has upper and lower parts, located at an angle to each other, and also connected to the upper part of the plot located perpendicular to the upper part, while the first intermediate strip is pivotally connected to the said section of the first side strip,

- the second side bar has upper and lower parts located at an angle to each other.

Unlike the closest analogue, the claimed mechanism uses a rotary support leg, which compactly folds / unfolds during transformation without touching the base, which allows the use of a longer base than in the closest analogue.

The claimed utility model is illustrated by drawings, where:

In FIG. 1 shows a General view of the claimed transformation mechanism.

In FIG. 2 shows a view of the claimed mechanism when folded,

In FIG. 3 shows a view of the claimed mechanism in the unfolded state,

In FIG. 4 shows a diagram of folding / unfolding furniture using the claimed mechanism.

The claimed device is a mechanism for transforming furniture includes a lower bar (1) for attaching to a fixed base (2) and an upper bar (3) for attaching to a seat (4) of furniture. The upper (3) and lower (1) trims are pivotally connected by means of curved first (5) and second (6) side trims. In this case, the second lateral strip (6) is connected with the upper end to the first end (right in the drawing) of the upper strip (3), and the lower end with the first end (in the right drawing) of the lower strip (1). The first lateral strip (5) is connected with the upper end to the middle part of the upper bracket (3), and the lower end with the second end (in the drawing, left) of the lower bracket (1).

In addition, the mechanism comprises a folding support leg (7), the upper end of which is pivotally connected to the second end (in the drawing, the left) of the upper bar (3). To carry out simultaneous folding or unfolding of the leg when moving the seat (4) in the claimed mechanism, at least one intermediate bar is provided that articulates the first side bar (5) with the support leg (7). In a particular embodiment of the utility model, the mechanism comprises a first long intermediate bar (8) pivotally connected to the first side bar (5), and a second short intermediate bar (9) pivotally connected to the first intermediate bar (8) and the support leg (7) in the region its upper end.

The first side strip (5) preferably has rectilinear upper (5a) and lower (5b) parts angled to each other, as well as a rectilinear section (5c) connected to the upper part (5a), which is perpendicular to the upper part in this way . The first intermediate strip (8) is pivotally connected to said section (5c) of the first side strip (5). In this case, the section (5a) is located in such a way that the points of the hinge joints (a, b and c) of the ends of the upper (5a), lower (5b) parts and the section (5c) form a triangle. This provides a short stop of the support leg (7) at the initial stage of folding the mechanism, in which the leg (7) “freezes” for a while while the rest of the mechanism continues to move, and then begins to move together with the mechanism.

The second lateral strip (6) preferably consists of upper (6a) and lower (6b) parts located at an angle to each other.

The claimed mechanisms are mounted on furniture in pairs and connected via a synchronizer.

The mechanism works as follows.

In the folded position (see Fig. 4a), the upper level of the backrest (10) of the furniture (sofa, chair) is in the upright position, the seat (4) is placed on the base (2) close to the backrest (10), the supporting leg (7) is folded and is located essentially horizontally.

To unfold the furniture, the user raises the seat (4) together with the upper bar (3) fixed to it. The side planks rotate relative to the lower plank (1) due to which the upper plank (3) with the seat (4) moves up and to the side in the direction from the backrest (10) (Figs. 4b, 4c). At the same time, the intermediate strips (8, 9) connected with the first side bar (5) begins to rotate the support leg (7), ensuring that it unfolds without touching the base (2) (Fig. 4b, c). After passing the upper point, the seat (4) begins to lower (Fig. 4c) until it touches the base plane (2) horizontally, while the leg (7) takes a vertical position. After that, it unfolds the seat back. In the unfolded position, the seat (1) and the backrest (2) are horizontally parallel to the base, forming a lying surface (Fig. 4d).

Folding is carried out in the reverse order.

Thus, the claimed mechanism has a simple and reliable design and provides a compact transformation, without touching the elements of the base mechanism, which allows the use of a longer base (linen box) compared to the prototype.

Claims (6)

1. A furniture transformation mechanism comprising:  lower bar (1) for fastening to a fixed base (2),  the upper bar (3) for attaching to the seat (10) furniture,  the first (5) and second (6) curved side strips pivotally connecting the upper (3) and lower (1) strips to form a parallelepiped between the points of articulation  a folding support leg (7) of the seat, the upper end of which is pivotally connected to the upper bar (3),  at least one intermediate bar pivotally connecting the first side bar (5) to the folding support leg (7) of the seat, with the possibility of folding and unfolding the legs (7) when raising and lowering the upper bar (3). 2. The mechanism according to claim 1, comprising a first intermediate bar (8) pivotally connected to the first side bar (5), and a second intermediate bar (9), pivotally connecting the first intermediate bar (8) and the support leg (7) at its the upper end, while the second intermediate strip (9) has a shorter length than the first intermediate strip (8). 3. The mechanism according to claim 1, in which the first side bar (5) is connected to the upper bar (3) in its middle part. 4. The mechanism according to claim 1, wherein the upper end of the support leg (7) is connected to the end of the upper bar (3). 5. The mechanism according to claim 2, in which the curved first lateral strip (5) has an upper (5a) and lower (5b) part located at an angle to each other, as well as a section (5c) connected to the upper part (5a), located perpendicular to the upper part (5A), while the first intermediate strip (8) is pivotally connected to the said section (5B) of the first side strip (5). 6. The mechanism according to claim 5, in which the second side bar (6) has an upper (6a) and lower (6b) part located at an angle to each other.

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