CN210169507U

CN210169507U - Sofa seat frame

Info

Publication number: CN210169507U
Application number: CN201920665008.8U
Authority: CN
Inventors: Wenbing Yang; 杨文兵; Yanzhao Zhang; 张艳召; Xuepeng Yang; 杨雪鹏
Original assignee: Man Wah Holdings Ltd
Current assignee: Man Wah Holdings Ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-03-24
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses a sofa seat frame, which comprises a frame and a plurality of elastic pieces arranged in the frame, wherein the frame comprises two symmetrically arranged longitudinal beams and two cross beams used for connecting the two longitudinal beams; the cross section of the longitudinal beam is L-shaped and comprises a vertical plate and a transverse plate, the vertical plate and the transverse plate form a placing cavity, and two ends of the transverse plate in the length direction are bent towards the inner side of the placing cavity to form folded edges; the two cross beams are symmetrically arranged on the folded edges at the two ends of the longitudinal beam and are positioned in the placing cavity; the beam structure further comprises at least one supporting beam, and the supporting beam is connected with the two cross beams. Compared with the prior sofa seat frame structure, the utility model discloses guaranteeing under the prerequisite that the seat frame supported intensity, improved the production efficiency of component, reduced the manufacturing materials, reduced manufacturing cost, simplified numerous and diverse assembly processes and required part, easily realize automaticly.

Description

Sofa seat frame

Technical Field

The utility model relates to the technical field of furniture, especially, relate to a sofa seat frame.

Background

The furniture industry always belongs to the labor-intensive traditional industry, a large amount of manual labor and production materials are needed in the production process, and the production efficiency is low. For example, in the existing sofa seat frame, the frame of the main bearing part is generally made of rectangular steel or channel steel through welding, and due to the stress problem of the frame and the connection problem with other sofa components, the frame cannot meet the requirement of mutual replacement of a left beam, a right beam, a front beam and a rear beam and the requirement of less overall manufacturing materials, so that the components are various in production types, difficult to produce and large in material consumption, and are not beneficial to the expanded production of enterprises.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least one defect in the prior art, the utility model provides a sofa seat frame.

The utility model discloses a solve the technical scheme that its problem adopted and be:

a sofa seat frame comprises a frame and a plurality of elastic pieces arranged in the frame, wherein the frame comprises two symmetrically arranged longitudinal beams and two cross beams used for connecting the two longitudinal beams; the cross section of the longitudinal beam is L-shaped and comprises a vertical plate and a transverse plate, the vertical plate and the transverse plate form a placing cavity, and two ends of the transverse plate in the length direction are bent towards the inner side of the placing cavity to form folded edges; the two cross beams are symmetrically arranged on the folded edges at the two ends of the longitudinal beam and are positioned in the placing cavity; the beam structure further comprises at least one supporting beam, and the supporting beam is connected with the two cross beams.

The utility model provides a sofa seat frame, longeron part set up to "L" shape and both ends are provided with the hem in order to form bow-shaped, strengthen the holding capacity of longeron, and the crossbeam is installed on the hem, and two longerons and two crossbeams all design the general piece that can the mutual replacement for the symmetry sets up to connect two crossbeams so that strengthen the support intensity of seat frame through a strutbeam. Compared with the prior sofa seat frame structure, the utility model discloses guaranteeing under the prerequisite that the seat frame supported intensity, improved the production efficiency of component, reduced the manufacturing materials, reduced manufacturing cost, simplified numerous and diverse assembly processes and required part, easily realize automaticly.

Further, a chamfer is arranged on the folded edge.

This reduces the amount of stock for manufacturing the stringer.

Furthermore, the supporting beam is made of a round tube, and at least one bending part is formed on the supporting beam.

Therefore, by utilizing the characteristics of the circular tube material, the minimum cross section is kept while the sufficient stability and strength of the corbel are ensured, and the manufacturing materials are reduced; and the bending part is used for providing buffer for the stress deformation of the support beam.

Further, the bending part is in a V shape.

Thus, the V shape can make the deformation of the corbel more stable.

Furthermore, one end of the supporting beam is fixed on one cross beam through a screw, and the other end of the supporting beam is hung and buckled on the other cross beam.

Therefore, the assembling of the supporting beam and the cross beam is simple and convenient.

Further, the elastic member is a serpentine spring having an arch shape that is upwardly arched toward the seating surface of the sofa seat frame.

Thus, a plurality of the serpentine springs are constructed into an arch-shaped riding surface with comfortable feeling, when the serpentine springs are stressed at one position, the serpentine springs begin to deform and stretch, the serpentine springs form an arch-shaped arc and descend, and when the arch-shaped arc is close to the riding surface, the serpentine springs still have the room for further stretching.

Furthermore, the serpentine spring is arranged between the two cross beams, and drag hooks used for being connected with the serpentine spring are arranged on the cross beams in a matched mode.

From this, serpentine spring's both ends are respectively hooked in two on the drag hook of crossbeam, the drag hook is movable with serpentine spring's being connected, has increased serpentine spring's last down space to make serpentine spring's elasticity obtain make full use of, strengthen the comfort level of sofa.

Further, the connecting piece is used for connecting a plurality of serpentine springs.

Further, the connecting piece is in a rectangular frame shape or a rod shape.

Therefore, the stress of the sofa is more uniform, when the stress of the sofa is uneven, the serpentine spring is not easy to reach the compression limit at the stress point, and people do not feel that the sofa is completely seated when the sofa is used.

To sum up, the utility model provides a sofa seat frame has following technological effect:

1) the longitudinal beam part is arranged in an L shape, two ends of the longitudinal beam part are provided with folded edges, the cross beams are arranged on the folded edges, the two longitudinal beams and the two cross beams are symmetrically arranged and can be replaced mutually, and the two cross beams are connected through the supporting beam so as to enhance the supporting strength of the seat frame, improve the production efficiency of the component, reduce the manufacturing materials, reduce the production cost, simplify the complicated assembly process and required parts, and facilitate the realization of automation;

2) by utilizing the characteristics of the circular tube material, the minimum cross section is kept while the sufficient stability and strength of the corbel are ensured, and the manufacturing materials are reduced;

3) the V-shaped bent part is used for buffering the stress deformation of the supporting beam and the deformation of the supporting beam is more stable;

4) the arched snake-shaped springs are used as elastic pieces to connect the two cross beams, and the connecting pieces are used for connecting the snake-shaped springs, so that an arched riding surface which is even in stress and comfortable in sitting feeling is created.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of another perspective of the embodiment of the present invention;

FIG. 3 is a schematic structural view of the stringer shown in FIG. 1;

FIG. 4 is a schematic structural view of the beam of FIG. 1;

FIG. 5 is a schematic structural view of another embodiment of the beam of FIG. 1;

FIG. 6 is a schematic structural view of the corbel of FIG. 1;

FIG. 7 is an enlarged view of portion A of FIG. 1;

FIG. 8 is an enlarged view of the portion B shown in FIG. 1;

fig. 9 is a schematic view of the connection between the sofa seat frame and the sofa armrest of the present invention.

Wherein the reference numerals have the following meanings:

1. a stringer; 11. a vertical plate; 12. a transverse plate; 13. folding edges; 14. chamfering; 15. a placement chamber; 2. a cross beam; 21. erecting edges; 22. transverse edges; 23. pulling a hook; 24. a screw hole; 25. a through hole; 3. supporting a beam; 31. a bending section; 32. a round hook; 33. a right-angled hook; 4. an elastic member; 5. a connecting member; 6. a sofa armrest; 7. a longitudinal beam connecting member; 8. a first beam connector; 9. a second beam connector.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 9, the present invention discloses a sofa seat frame, which comprises a frame and a plurality of elastic members 4 disposed in the frame, and in this embodiment, the technical solution of the sofa seat frame specifically used for a single sofa will be clearly and completely described as an example.

Referring to fig. 1, the frame is substantially rectangular frame-shaped, and includes two longitudinal beams 1, two cross beams 2, and a support beam 3 for connecting the two cross beams 2, where the two longitudinal beams 1 and the two cross beams 2 are symmetrically disposed, and ends of the two longitudinal beams 1 and the two cross beams 2 are connected to each other to form a rectangular frame shape. Therefore, the two longitudinal beams 1 and the two cross beams 2 are universal parts which can be replaced mutually, and the production efficiency of the component is improved.

Referring to fig. 1, 2 and 3, the cross section of the longitudinal beam 1 is substantially L-shaped, and includes a vertical plate 11 and a horizontal plate 12, the horizontal plate 12 is parallel to the seating surface of the sofa seat frame, the vertical plate 11 is vertically connected with the horizontal plate 12 and forms a placement cavity 15, two ends of the horizontal plate 12 in the length direction are bent towards the inner side of the placement cavity 15 to form a folded edge 13, an included angle between the folded edge 13 and the seating surface of the sofa seat frame is 15-75 °, and a chamfer 14 is provided on the folded edge 13, so that the horizontal plate 12 forms an arc shape, the bearing capacity of the longitudinal beam 1 is enhanced, and a larger buffer distance is provided for the seating surface. Referring to fig. 2, an external force F is applied from the cross beam 2 to the flanges 13 at both ends of the longitudinal beam 1, and the external force F can be decomposed into a bending force F1 perpendicular to the flanges 13 and a pressing force F2 parallel to the flanges 13, as can be seen from the principle of force decomposition and synthesis, the bending force F1 is smaller than the external force F, and when the cross-sectional areas of the beams are consistent, the bending strength of the longitudinal beam 1 is much greater than that of a common rectangular steel beam or a channel steel beam, so that the longitudinal beam 1 has less manufacturing materials on the premise of satisfying the bending strength of the structure. Preferably, the vertical plate 11 and the transverse plate 12 are integrally formed, and for convenience of processing and maintaining the longitudinal beam to have high strength, the vertical plate 11 and the transverse plate 12 are formed by bending steel plates on the same surface. It should be noted that the vertical plate 11 and the horizontal plate 12 are not limited to be formed integrally, and the vertical plate 11 and the horizontal plate 12 may be fixed by welding.

Referring to fig. 1 and 4, in the present embodiment, the cross section of the cross beam 2 is substantially in an inverted U shape, and includes two vertical edges 21 and a horizontal edge 22 connecting the two vertical edges 21, the two vertical edges 21 have different heights so as to adapt to an included angle between the folded edge 13 and a seating surface of the sofa seat frame, the horizontal edge 22 is stamped to form four pull hooks 23 distributed at equal intervals to an outer side surface thereof, the horizontal edge 22 is symmetrically provided with a plurality of screw holes 24, and the vertical edge 21 is symmetrically provided with a plurality of through holes 25.

Referring to fig. 5, in another embodiment, the cross beam 2' may also have a substantially inverted L-shaped cross section, and includes a vertical side 21' and a transverse side 22', the transverse side 22' is punched towards the outer side surface thereof to form four equidistantly distributed hooks 23', and the transverse side 22' is symmetrically provided with a plurality of screw holes 24 '.

Referring to fig. 1 and 6, in the present embodiment, the supporting beam 3 is made of a round tube, the round tube is a solid steel tube, two bent portions 31 are formed on the supporting beam 3 at intervals by bending, the bent portions 31 are substantially V-shaped, one end of the supporting beam 3 is bent to form a round hook 32, and the other end is bent to form a right-angled hook 33. Therefore, by utilizing the characteristics of the circular tube material, the minimum cross section is kept while the sufficient stability and strength of the corbel 3 are ensured, and the manufacturing materials are reduced; the bending portion 31 is used for buffering the stress deformation of the support beam 3 and the deformation is more stable. It should be noted that, in another embodiment, both ends of the corbel 3 may be bent to form a circular hook 32 or a right-angled hook 33, so as to connect the corbel 3 to the two cross beams.

Referring to fig. 1, 7 and 8, in this embodiment, the cross beams 2 are symmetrically disposed at two ends of the longitudinal beam 1 in the length direction and located in the placing cavities 15 formed by the vertical plates 11 and the horizontal plates 12, preferably, the cross beams 2 are disposed on the folded edges 13, the lower surfaces of the vertical edges 21 of the cross beams 2 are abutted to the folded edges 13 of the longitudinal beam 1, and the end surfaces of the cross beams 2 are attached to the vertical edges 11 of the longitudinal beam 1; one end of the supporting beam 3 passes through the circular hook 32 and the screw hole 24 through screws to be fixed on one cross beam 2, and the other end of the supporting beam 3 is hung and buckled on the other cross beam 2 through the matching of the right-angle hook 33 and the through hole 25, so that the supporting beam 3 and the cross beam 2 are simple and convenient to assemble. It should be noted that the cross beam 2 and the longitudinal beam 1 may be welded or fixed by bolts.

Referring to fig. 2, an external force F is applied from the cross beam 2 to the flanges 13 at both ends of the longitudinal beam 1, and the external force F can be decomposed into a bending force F1 perpendicular to the flanges 13 and a pressing force F2 parallel to the flanges 13, as can be seen from the principle of force decomposition and synthesis, the bending force F1 is smaller than the external force F, and when the cross-sectional areas of the beams are consistent, the bending strength of the longitudinal beam 1 is much greater than that of a common rectangular steel beam or a channel steel beam, so that the longitudinal beam 1 has less manufacturing materials on the premise of satisfying the bending strength of the structure. When the longitudinal beam 1 is stressed to bend and deform, the distance between the cross beams 2 arranged at the two ends of the longitudinal beam 1 is increased, and in the process, the supporting beam 3 provides a pulling force for drawing the two cross beams 2 close, so that the stability of the sofa seat frame is improved.

Therefore, through the whole technical scheme of the longitudinal beam 1, the cross beam 2 and the support beam 3, on the premise of ensuring the support strength of the seat frame, the production efficiency of the component is improved, the manufacturing materials are reduced, the production cost is reduced, the complicated assembly process and required parts are simplified, and the automation is easy to realize.

Referring to fig. 1 and 2, in the present embodiment, four elastic members 4 are disposed on the frame, the elastic members 4 are serpentine springs, the serpentine springs are in an arch shape that is arched upward toward the seating surface of the sofa seat frame, and the four serpentine springs are configured into an arch-shaped seating surface with comfort. Thus, when the serpentine spring begins to be stressed, the serpentine spring begins to deform and elongate, the serpentine spring descends in an arc shape, but when the arc is close to the riding surface, the serpentine spring still has a room for further elongation.

In this embodiment, the hook that the both ends of serpentine spring were moved about respectively is hung in two on the drag hook 23 of crossbeam 2, increased serpentine spring's the space of going up and down, thereby make serpentine spring's elasticity obtains make full use of, strengthens the comfort level of sofa.

Referring to fig. 1, in the present embodiment, the sofa seat frame further includes a connecting member 5 connecting four serpentine springs, so that when the sofa is stressed unevenly, the sofa is not easy to reach the compression limit at the stressed point, and people can not feel as if they sit to the bottom when the sofa is used.

Preferably, in this embodiment, the connecting member 5 is a rectangular frame formed by bending a round rod, so that the sofa is more uniformly stressed. It should be noted that the connecting member 5 is not limited to be bent to form a rectangular frame, and the connecting member 5 may also be a straight rod or a C-shaped rod.

Referring to fig. 9, in this embodiment, after the sofa seat frame is integrally connected and formed, three longitudinal beam connectors 7 are fixed on the outer side surfaces of the vertical plates 11 of the two longitudinal beams 1 at intervals, a first cross beam connector 8 and a second cross beam connector 9 are fixed on the two cross beams 2, and then the longitudinal beam connectors 7, the first cross beam connector 8 and the second cross beam connector 9 are fixedly connected with the two armrests respectively.

To sum up, in the sofa seat frame provided by the utility model, the longitudinal beam 1 is partially set to be L-shaped, the two longitudinal beams 1 and the two cross beams 2 are symmetrically arranged and can be replaced mutually, and the two cross beams 2 are connected through the supporting beam 3 so as to enhance the supporting strength of the seat frame, improve the production efficiency of components, reduce the manufacturing materials, reduce the production cost, simplify the complicated assembly process and the required parts, and easily realize automation; by utilizing the characteristics of the circular tube material, the minimum cross section is kept while the sufficient stability and strength of the corbel 3 are ensured, and the manufacturing materials are reduced; the V-shaped bent part 31 is used for buffering the stress deformation of the support beam 3 and ensuring the deformation to be more stable; the arched snake-shaped springs are used as elastic pieces 4 to connect the two cross beams 2, and the four snake-shaped springs are connected by the connecting pieces 5, so that an arched riding surface with uniform stress and comfortable sitting feeling is created.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. A sofa seat frame, includes the frame and sets up a plurality of elastic component (4) in the frame, its characterized in that: the frame comprises two longitudinal beams (1) which are symmetrically arranged and two cross beams (2) which are used for connecting the two longitudinal beams (1);

the cross section of the longitudinal beam (1) is L-shaped and comprises a vertical plate (11) and a transverse plate (12), the vertical plate (11) and the transverse plate (12) form a placing cavity (15), and two ends of the transverse plate (12) in the length direction are bent towards the inner side of the placing cavity (15) to form folded edges (13);

the two cross beams (2) are symmetrically arranged on the folding edges (13) at the two ends of the longitudinal beam (1) and are positioned in the placing cavity (15);

the beam structure further comprises at least one supporting beam (3), and the supporting beam (3) is connected with the two cross beams (2).

2. The sofa seat frame according to claim 1, wherein: and a chamfer (14) is arranged on the folded edge (13).

3. The sofa seat frame according to claim 1, wherein: the supporting beam (3) is made of a round tube, and at least one bending part (31) is formed on the supporting beam (3).

4. The sofa seat frame according to claim 3, wherein: the bent portion (31) is V-shaped.

5. The sofa seat frame according to claim 3, wherein: one end of the supporting beam (3) is fixed on one cross beam (2) through a screw, and the other end of the supporting beam (3) is hung and buckled on the other cross beam (2).

6. The sofa seat frame according to claim 1, wherein: the elastic piece (4) is a serpentine spring which is in an arch shape that is arched upwards towards the seating surface of the sofa seat frame.

7. The sofa seat frame according to claim 6, wherein: the serpentine spring is arranged between the two cross beams (2), and drag hooks (23) used for being connected with the serpentine spring are arranged on the cross beams (2) in a matched mode.

8. The sofa seat frame according to claim 6, wherein: the connecting piece (5) is used for connecting a plurality of serpentine springs.

9. The sofa seat frame according to claim 8, wherein: the connecting piece (5) is in a rectangular frame shape or a rod shape.