ES1134556U - Device for folding sofas parts (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Device for folding parts of a sofa characterized in that it comprises: - a sliding bar (3) attached to the backrest (2) and to the base of the seat (1), - an articulated bar with a lower arm (4) attached to the structure of the sofa, and an upper arm (5) attached to the slide bar (3), - a recovery spring (6) joined at its ends to the structure of the sofa and to the slide bar (3), - a rail (7) integrated into the body of the sofa, - a bearing (9) capable of traveling along the rail (7) in which it is located, connected on the other hand to the slide bar (3) and the base of the seat (1), - a wheel (8) fixed on the front edge of the sofa on which one of the edges of the base of the seat (1) slides down, So that, In the movement of abatement, overcoming the force of the spring (6), the base of the seat (1) slides on the wheel (8) and moves the bearing (9) along the rail (7), displacing the bar sliding (3), which causes the backrest (2) and the upper arm (5) of the articulated bar to lower on the lower arm (4). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Device for folding parts of sofas.

OBJECT OF THE INVENTION

 5

The present invention relates to a device by means of which a part of a sofa is folded down, usually that corresponding to a sofa seat. While the seat part is folded, the back of the sofa in the corresponding area is also folded down. As particular cases, the device can be implemented in an individual armchair or in several areas of the same sofa. 10

Find special application in the field of domestic furniture industry.

TECHNICAL PROBLEM TO BE RESOLVED AND BACKGROUND OF THE INVENTION

 fifteen

A variety of devices focused on the folding of parts of a sofa are known in the current state of the art.

The most well-known and used device consists of a metal frame comprising a base structure with a rail through which the mechanism that produces the abatement slides. The mechanism that slides along the rail consists of a crossbar complemented by other crossbars, both in the front and in the rear, which give rigidity to the assembly. The crossbars are supported by structures on the right and left that incorporate the proper mechanisms to perform the movement of abatement.

 25

Both the assembly and the manufacture of the current device is very complex and very inexpensive, having in the same way a very expensive maintenance.

With the present invention, the complexity of this type of mechanism is substantially improved, without diminishing the comfort involved in the folding and repositioning of at least one section of the sofa by a user without any effort.

DESCRIPTION OF THE INVENTION

The present invention relates to a device for folding parts of a sofa. 35

The device is composed of the following elements:

- a sliding bar attached to the backrest and seat base,

- an articulated bar with a lower arm attached to the sofa structure, and an upper arm attached to the slide bar, 40

- a recovery spring connected at its ends to the sofa structure and the slide bar,

- a rail integrated into the body of the sofa,

- a bearing with the ability to move along the lane in which it is located, connected on the other hand to the slide bar and to the base of the seat, 45

- a fixed wheel on the front edge of the sofa on which one of the edges of the base of the seat that slides slides,

The force of the spring must be overcome in the dejection movement, whose function is mainly to return the sofa to the initial resting position when it stops 50

put pressure on the couch. In the movement, the base of the seat slides on the wheel and along the rail by means of the bearing to which it is attached, displacing the sliding bar, which causes the backrest and upper arm of the articulated bar to be folded over the lower arm .

 5

In order to print greater stability to the system, on the other side of the part of the sofa that is folded, an identical or symmetrical mechanism is described, being able to incorporate only a system that serves as support for the sliding of the seat base (1).

BRIEF DESCRIPTION OF THE FIGURES 10

To complete the invention that is being described and in order to help a better understanding of the features of the invention, according to a preferred embodiment of the invention, a set of drawings is attached where, for illustrative purposes and not limiting, the following figures have been represented: 15

- Figure 1 represents a perspective view of the device in a working position with enlarged details of the mechanisms.

- Figure 2 shows a complete sofa with a part in the process of dejection.

 twenty

The following is a list of the references used in the figures:

1. Sofa seat base.

2. Backrest of the sofa.

3. Sliding bar.

4. Lower arm of despondency. 25

5. Upper arm of despondency.

6. Recovery spring.

7. Rail.

8. Wheel.

9. Bearing. 30

DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION

The present invention relates to a device that allows the folding of the seat and the back of part of a sofa. 35

The device consists of a mechanism attached to the two parts of the sofa that you want to fold down, the seat and the backrest, and is designed so that the user himself, without having to move from the seat, can fold it down without any effort.

 40

The mechanism can be located on both sides of the seat and backrest that is folded, as can be seen in figure 1, although it can also be located on only one side, incorporating on the other side, simply, a guide that allows the support of the seat that falls.

 Four. Five

Regardless of whether it is incorporated on one or both sides of the part of the sofa that is folded, the mechanism basically consists of the following components:

- a bar (3) attached to the backrest (2) and the seat base (1),

- an articulated bar, with a lower arm (4) attached to the sofa structure and an upper arm (5) attached to the previous bar (3), 50

- a spring (6) recuperator,

- a rail (7) integrated into the sofa body,

- a wheel (8) fixed on the front edge of the sofa on which one of the side edges of the seat base (1) slides, slides,

- a bearing (9) located in the rail (7), on which it has the possibility of sliding, and connected on the other side to the bar (3) and to the base of the seat (1). 5

As shown in Figure 1 and, as mentioned, the mechanism is located on both sides of the part of the sofa to be folded down, typically focused on the part occupied by a single person.

 10

The part of the sofa that is normally folded is the one that is located at one of the ends of the sofa, next to the arm, and a sofa can incorporate even two folding zones, one at each end of the sofa.

A particular case is the location of the device at the end of a “chaise longe” type sofa, 15 so that, when the elongated seat is folded down, it becomes a bed.

As a particular case, the device can be applied to an individual chair.

The operation of the mechanism of the device of the invention is as described below.

The slide bar (3) is connected by one of its ends to the bearing (9) and to the base of the seat (1), being able to rotate on both elements. The other end of the slide bar (3) is attached to the upper folding arm (4) with a 25-turn capacity. At an intermediate point of its length, the slide bar (3) is rigidly fixed to the backrest (2) of the sofa, and at another intermediate point it is fixed to the end of a spring (6), so that the spring (6 ) is without tension when the sofa is in the rest position, without collapsing. In this way, to lower the sofa, you have to overcome the force that creates the spring (6). As the sofa folds down, the spring (6) tends to return it to its resting position. The other end of the spring (6) is attached to the sofa structure through a metal plate.

The lower (4) and upper (5) folding arms form an articulated bar, being joined by one of its ends. The lower arm (4) is fixed to the structure of the sofa 35 by means of a metal plate on which it has the possibility of rotation. The upper arm (5), in the same way, is fixed to the slide bar (3) on which it has the possibility of rotation.

In this way, in the folding of the sofa, the upper arm (5) of folding will be approaching 40 to the lower arm (4), closing the angle that they form at their point of attachment and causing the backrest (2) to go down.

As for the movement of the sofa seat, in the abatement, the end of the slide bar (3) that is attached to the bearing (9) and to the base of the sofa (1), makes the base of the sofa (1) move outwards leaning on the wheel (8) on the front edge of the sofa.

The folding movement is limited by stops that can be implemented in different positions, such as in the rail (7), limiting the movement of the base of the seat (1) and, therefore, of the device completely, or in any of the arms of despondency (4, 5).

The present invention should not be limited to the embodiments described herein. Other configurations can be made by those skilled in the art in view of the present description. Accordingly, the scope of the invention is defined by the claims presented below.

Claims (3)

1.- Device for folding parts of a sofa characterized by comprising: - a sliding bar (3) attached to the backrest (2) and the seat base (1), - an articulated bar with a lower arm (4) attached to the sofa structure, and an upper arm (5) attached to the slide bar (3), 5 - a recovery spring (6) joined at its ends to the sofa structure and the slide bar (3), - a rail (7) integrated in the sofa body, - a bearing (9) with the capacity to move along the rail (7) in which it is located, connected on the other hand to the slide bar (3) and to the base of the seat (1), 10 - a wheel (8) fixed on the front edge of the sofa on which one of the edges of the seat base (1) slides, slides, so that, in the downward movement, overcoming the force of the spring (6), the seat base (1) slides on the wheel (8) and moves the bearing (9) along the rail (7), displacing the bar 15 of sliding (3), which causes the backrest (2) and the upper arm (5) to fall apart from the articulated bar on the lower arm (4). 2. Device for folding parts of a sofa according to claim 1, characterized in that on the other side of the part of the sofa that is folded comprises an identical mechanism. twenty 3. Device for folding parts of a sofa according to claim 1, characterized in that on the other side of the part of the sofa that is folded comprises a support system for sliding the base of the seat (1).