RU142559U1 - TRANSFORMATION MECHANISM IN BED SEAT FURNITURE - Google Patents

Abstract

1. The mechanism of transformation into a bed of furniture for seating, which contains the rear, front and additional sections, which are placed in the supporting frame and are arranged to be placed in the horizontal direction, while the front section is provided with a support, the front and additional sections are movably connected to each other, in addition, the additional section is made with the possibility of radial movement in the vertical plane, while the transformation mechanism contains at least one spring, one end of which is connected to additionally section, characterized in that the second end of the spring is attached to the inner side of the supporting box, the spring is set so that during the radial movement of the auxiliary section of the spring tensioning force is directed downwards at an angle, ensuring its szhatie.2. The mechanism of transformation into a bed of furniture for seating according to claim 1, characterized in that the spring is connected to the additional section by means of an iron cable stretched through a pulley that is rigidly fixed to the support box. 3. The mechanism of transformation into a bed of furniture for seating according to claim 1, characterized in that the spring is made of metal. 4. The mechanism of transformation into a bed of furniture for seating according to claim 1, characterized in that a support box is used as a supporting frame.

Description

The inventive utility model relates to the field of furniture production, in particular, to mechanisms for the transformation (folding / unfolding) of furniture and can be used in the construction of sofas, armchairs, beds and other furniture.

A known mechanism for transforming furniture, comprising at least two four-link transforming mechanisms, each of which consists of a lower link, an upper link attached to the base of the seat, front and rear swivel links, pivotally connected to the upper and lower links, and it is equipped with connected beam angular brackets connecting the four-link mechanisms, and unloading springs connecting the rotary links of each mechanism, while the rotary links have the same dimensions, lower Wenyan rigidly attached to the sidewalls of a base, and the vertical position of the front and rear rotary units unloading springs are in a compressed state [RU 2228698, IPC: A47C 17/16, 12.08.2003].

A known mechanism for transforming furniture containing a supporting frame with legs, three transformable frames, the front of which provides the furniture in a lying position, and the other two with the possibility of transforming furniture from a sitting position to a lying position, and vice versa, each of the frames consists of two welded parts, the middle frame is pivotally connected to the extreme frames, the rear frame is pivotally connected to the support frame, and the front frame has wheel bearings, a spring mounted on the middle frame and is connected via a shank inennaya with the rear frame, and contains a lock mounted on the middle frame at the joint of the front and middle frames with the possibility of fixing the front frame in the upper position and return the front frame from the upper position to the lying position when the other frames are in the lying position, all wheel supports of the front frame are pivotally connected to it with the possibility of their transformation from vertical to horizontal position, and vice versa, and the frame welds are located at the corners [RU 78048, IPC A47C 17/16, 07/17/2008].

As a prototype, the mechanism of transformation into a bed of furniture for seating was chosen, while the furniture contains front, rear and additional sections, which are arranged to be placed in the horizontal direction, the front and rear sections are pulled together by a spring, and the additional section is pivotally fixed at two points on the movable base, while in the "Bed" position, the front section has a movable support on coaxial rollers fixed to the base so that the interface line of the front and additional sections located between the line of articulated supports and the axis of the rollers [RU 2132149, IPC A47C 17/13, 06.24.1998].

A common disadvantage of the known devices is the complexity and relative high cost of the transformation mechanism, due primarily to the use of a large number of parts. In addition, the design of the transformation mechanism described in the patents RU 78048, RU228698, as well as in similar devices require the application of sufficient physical strength, which complicates the transformation process.

The technical task is to expand the arsenal of funds, simplify the transformation mechanism, reduce the cost of its manufacture.

The essence of the claimed device is as follows.

The inventive mechanism of transformation into a bed of furniture for seats, comprising a rear, front and additional sections, which are placed in the supporting frame and are arranged to be placed in the horizontal direction, while the front section is supported, the front and additional sections are movably connected to each other, in addition the additional section is made with the possibility of radial movement in the vertical plane, while the transformation mechanism contains at least one spring, one end of which is connected with an additional section, and in contrast to the prototype, the second end of the spring is attached to the inner side of the support box, the spring is installed in such a way that during the radial movement of the additional section, the spring tension force is directed downward at an angle, ensuring its compression.

The spring is connected to the additional section directly or through an iron cable and can be made of metal or other durable material.

The necessary angle of the spring tension force can be achieved through the use of a pulley mounted on a support frame, and a cable connecting the spring and the additional section is pulled through the pulley.

As a support frame, a support box may be used.

In FIG. 1-6, two embodiments of the transformation mechanism into a bed of furniture for seating are presented. The inventive mechanism can be used to transform the chair into a bed. The chair-bed contains a hollow rigid support box 1, to which the rear 2, front 3 and additional sections 4 are pivotally attached, which are placed in the support box 1 and are arranged to be placed in the horizontal direction, the additional section 4 being pivotally mounted on the support box 1 s using the rotation element 5, which is two hooks and two corners connected to each other. The rear section 2 is mounted on the support box 1 using a card loop 6 and is configured to radially move in a vertical plane from a vertical to a horizontal position and vice versa. The front 3 and additional sections 4 are movably connected to each other using a loop 7. In addition, the additional section 4 is made with the possibility of radial movement in a vertical plane. The front section 3 is equipped with a wheel support 8 and a belt 9, designed for the convenience of gripping the seat in order to transform the piece of furniture. Equally distant from the edges of the front section 3 and the additional section 4 is a pivotally mounted support 10, made with the possibility of folding, which consists of rods (not shown in the drawings), pivotally connected to each other on one side. In the “chair” state, the additional section 4 is located inside the support box 1 in a horizontal position, the rear section 2 is in a vertical position, and the front section 3 is in a horizontal position.

The inventive device is illustrated by the following drawings:

FIG. 1 - chair-bed in assembled form (general view) with a transformation mechanism containing a pulley;

FIG. 2 - a chair-bed in a semi-disassembled state, the additional section is in an upright position (general view) with a transformation mechanism containing a pulley;

FIG. 3 - an unassembled chair-bed (general view) with a transformation mechanism containing a pulley.

FIG. 4 - chair-bed in assembled form (general view) with a transformation mechanism without a pulley;

FIG. 5 - chair-bed in a semi-disassembled state, the additional section is in an upright position (general view) with a transformation mechanism without a pulley;

FIG. 6 - an unassembled chair-bed (general view) with a transformation mechanism without a pulley.

Example 1

The transformation mechanism contains one spring 11, one end of which is connected to the additional section 4, and the second end of the spring 11 is attached to the inner side of the support box 1, the spring 11 is installed so that during the radial movement of the additional section 4, the tension force of the spring 11 is directed downward angle, providing its compression.

The spring 11 is connected to the additional section by means of an iron cable 12, which is attached to the fastening element of the cable 13 and is attached to the ring of a screw 14, screwed into the support box 1 from the inside. The spring 11 is made of metal.

The cable fastening element 13 is fixed to the additional section 4.

The cable 11 is pulled through a pulley 15 mounted on a support box 1, which allows you to place the spring 11 in the most convenient place on the support box 1, where it will not impede the transformation and movement of parts of the chair bed.

Example 2

The transformation mechanism contains one spring 11, one end of which is connected to the additional section 4, and the second end of the spring 11 is attached to the inner side of the support box 1, the spring 11 is installed so that during the radial movement of the additional section 4, the tension force of the spring 11 is directed downward angle, providing its compression.

The spring 11 is connected to the additional section 4 and is attached at one end to the spring mounting member 16 and the other to the ring of the screw 14 screwed into the support box 1 from the inside. The spring 11 is made of metal.

The spring mounting member 16 is fixed to the additional section 4.

The principle of operation of the inventive device according to example 1 and example 2 are similar and consists in the following.

The process of transforming a chair into a bed.

In the folded state, the distance from the fastener element of the cable 13 to the pulley 15 (Fig. 1-3) or from the fastener element of the spring 16 to the point of attachment of the spring to the ring of the screw 14 (Fig. 4-6) is maximum and equal to L ₁ , therefore, the spring 11 as stretched as possible. At the moment when the user begins to pull the belt 9 upward at himself at an angle of about 30-45 ° to the horizontal plane, the additional section 4 of the chair bed radially moves in a vertical plane, so that it tends to a vertical position, and the spring 11 is compressed to a minimum distance between the pulley 15 and the fastening element of the cable 13 (Fig. 1-3) or the place of fastening the spring to the ring of the screw 14 and the fastening element of the spring 16 (Fig. 4-6), equal to L ₂ when the additional section 4 is in upright ui. Thus, the compression force of the spring 11 helps to raise the additional section 4 in a vertical position.

Until the chair is completely transformed into a bed, the user needs to continue to pull the belt 9 or press with his hand on the additional section 4 of the chair-bed from above. The distance between the pulley 15 and the fastening element of the cable 13 (Fig. 1-3) or the place of attachment of the spring to the ring of the screw 14 and the fastening element of the spring 16 (Fig. 4-6) increases to a distance L ₃ , and the spring 11 is stretched, creating the resistance of the full layout of the chair-bed, carried out due to the weight of the additional section 4 and the front section 3. In addition, using the wheel support 8, the front section 3 is moved, ensuring its installation in a horizontal position. The support 10 when moving the additional 4 and the front sections 3 unfolds. In order to move the rear section 2 to a horizontal position, the user also needs to pull its upper part from the front or side.

The process of transforming a chair bed into a chair is similar to the above. Initially, the user, clinging to the belt 9, raises the additional section 4, including using the spring tension force 11. Next, the additional section 4, being in a vertical position, under the influence of its weight carries out radial movement in a vertical plane with the subsequent placement of the additional section 4 inside hollow support box 1.

Thus, the claimed utility model allows to solve the following technical problems - expanding the arsenal of tools, simplifying the transformation mechanism and reducing the cost of its manufacture.

Claims (4)

1. The mechanism of transformation into a bed of furniture for seating, which contains the rear, front and additional sections, which are placed in the supporting frame and are arranged to be placed in the horizontal direction, while the front section is provided with a support, the front and additional sections are movably connected to each other, in addition, the additional section is made with the possibility of radial movement in the vertical plane, while the transformation mechanism contains at least one spring, one end of which is connected to additionally section, characterized in that the second end of the spring is attached to the inner side of the supporting box, the spring is set so that during the radial movement of the auxiliary section of the spring tensioning force is directed downwards at an angle, ensuring its compression. 2. The mechanism of transformation into a bed of furniture for seating according to claim 1, characterized in that the spring is connected to the additional section by means of an iron cable stretched through a pulley that is rigidly fixed to the support box. 3. The mechanism of transformation into a bed of furniture for seating according to claim 1, characterized in that the spring is made of metal. 4. The mechanism of transformation into a bed of furniture for seating according to claim 1, characterized in that a support box is used as a supporting frame.

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