CN114766857A - Sofa cushion structure - Google Patents

Abstract

The application relates to a sofa cushion structure, which comprises a cushion framework and a flexible wrapping layer wrapped outside the cushion framework, wherein the cushion framework comprises a framework frame, at least one transverse connecting rod fixed in the framework frame and at least one longitudinal connecting rod fixed in the framework frame, and the transverse connecting rods and the longitudinal connecting rods are arranged in a crossed manner; be fixed with at least a set of coupling assembling on the cushion skeleton, coupling assembling is including being fixed in the mounting of cushion skeleton, being used for connecting at sofa frame and detachable connections in the installed part of mounting. The cushion can improve the ability of the flexible layer to maintain a proper shape and improve the stability of the overall shape of the cushion.

Description

Sofa cushion structure

Technical Field

The application relates to the field of furniture, in particular to a sofa cushion structure.

Background

The prior sofa cushion has two main types, wherein the first type is a removable cushion which is independent from the sofa body and is convenient to clean, and the second type is a cushion which is fixed on the sofa frame, and the cushion has strong connection stability with the sofa frame and is not easy to slip;

for the second cushion, the conventional structure at present comprises a seat frame, a flexible layer adhered to the seat frame and a sheath coated outside the seat frame and the flexible layer, wherein the seat frame is fixed with a sofa frame through structures such as bolts and the like; such a seat cushion has the following problems: after the time has been of a specified duration, glue between flexible layer and the seat frame became invalid easily, led to connectivity between them not enough, then the flexible layer can't maintain suitable form in the canning, influenced user and used experience, for example pressed the cushion and moved backward when user's buttock, probably led to the flexible layer to be pushed and moved to the one corner in the canning, caused the cushion to warp seriously.

Disclosure of Invention

To improve the ability of the flexible layer to maintain a proper form, the present application provides a sofa cushion structure.

The application provides a sofa cushion structure adopts following technical scheme:

a sofa cushion structure comprises a cushion framework and a flexible wrapping layer wrapping the cushion framework, wherein the cushion framework comprises a framework frame, at least one transverse connecting rod fixed in the framework frame and at least one longitudinal connecting rod fixed in the framework frame, and the transverse connecting rods and the longitudinal connecting rods are arranged in a crossed mode; be fixed with at least a set of coupling assembling on the cushion skeleton, coupling assembling is including being fixed in the mounting of cushion skeleton, being used for connecting at sofa frame and detachable connections in the installed part of mounting.

By adopting the technical scheme, the flexible wrapping layer can be selected as a foaming layer, the cushion framework can be placed in the die, the foaming material is poured, and a combination body with the flexible wrapping layer firmly wrapped outside the cushion framework is finally produced through the following conventional steps of milky white, post-curing and the like; in addition, the cushion framework is detachably connected with the sofa framework through the connecting assembly, so that the cushion can be conveniently cleaned.

Preferably, including high-order district, low level district and transition region, the cushion skeleton in the high-order district is a with the upper surface interval of flexible parcel layer, and the cushion skeleton in the low level district is b with the upper surface interval of flexible parcel layer, and a < b, and the cushion skeleton in the transition region is between a and b with the upper surface interval of flexible parcel layer.

By adopting the technical scheme, the cushion framework is arranged at different heights in the flexible wrapping layer, so that the sliding and falling probability of the flexible wrapping layer relative to the cushion framework along the horizontal direction can be further reduced; in addition, each bit zone can provide the riding areas with different hardness for the user, and the requirements of the client are met.

Preferably, the higher region of the lower region is closer to the rear side of the seat cushion frame, and the transition region is located between the higher region and the lower region.

Through adopting above-mentioned technical scheme, satisfy the custom that the user normally took, move forward when user's back, buttock in addition and bulldoze, when applying the forward frictional force for the cushion promptly, because the high-order district just in time is located the route of low-order district's motion, then can effectively reduce the relative cushion skeleton of flexible parcel layer along horizontal rearward direction's slip, the probability of droing.

Preferably, be equipped with multiunit buffering subassembly in the flexible parcel layer, the buffering subassembly includes the butt piece, down the butt piece, locates the elastic component between butt piece and the lower butt piece, and the lower extreme of elastic component is fixed under on the butt piece, and the upper end of elastic component remains the clearance with last butt piece.

By adopting the technical scheme, when a user sits on the cushion, the cushion can be roughly divided into two stages, wherein the first stage is that the upper abutting part is not contacted with the elastic part, so that the resistance of the user to sit down is small, the softness is high, and the second stage is that the upper abutting part starts to abut against the elastic part, so that the resistance of the user to sit down is large, and effective support can be provided for users with large mass; after the cushion has been used for a long time in addition, ageing atrophy can take place for flexible parcel layer, then goes up the butt piece and can descend and contact in the elastic component, and the effect of the elastic component of this moment is, prevents the excessive atrophy of flexible parcel layer to make this cushion can maintain longer life.

Preferably, the plurality of groups of buffer assemblies are arranged in a U shape, and the U-shaped openings face the front side of the cushion framework.

Through adopting above-mentioned technical scheme, can just in time accord with the contact range that the human body sat down, the buffering subassembly can play key support to two thighs and buttock of user promptly to reduce the probability that flexible parcel layer was excessively extruded in the usual use, help prolonging the life on flexible parcel layer.

Preferably, the longitudinal tie rod sets up along the fore-and-aft direction of cushion skeleton, and the longitudinal tie rod that is located cushion skeleton width direction middle part is the intermediate link, and the part that the intermediate link is close to cushion skeleton rear side is the concave section down, and the concave section is the undercut setting.

Through adopting above-mentioned technical scheme, the region of a slice high flexibility is formed deliberately, because the sunken setting of cushion skeleton here, the thickness that the flexible parcel layer that multiplicable here is located the cushion skeleton top also can improve the soft degree in this piece region, is suitable for the little child that the area is little, the weight is little.

Preferably, the longitudinal connecting rods positioned on two sides of the middle connecting rod are side connecting rods, the parts of the side connecting rods, which are close to the rear side of the seat cushion framework, are flat sections, and the flat sections are higher than the lower concave sections.

By adopting the technical scheme, the area with slightly poor flexibility and stronger supporting force can be formed at the periphery of the high-flexibility area above the sunken section, and the area is suitable for adults with larger riding area and larger weight.

Preferably, the fixing part comprises a shell and an elastic limiting part, the shell is fixed on the cushion framework, and limiting openings with deformable intervals are formed in the elastic limiting part; the installed part comprises a head part with an outer diameter larger than the inner diameter of the limiting opening and a neck part with an outer diameter smaller than the inner diameter of the limiting opening.

Through adopting above-mentioned technical scheme, in actual installation, can stretch into spacing mouthful with the head, and spacing mouthful will be propped open, pass spacing mouthful until the head, and the neck is in spacing mouthful, then accomplishes being connected of installed part and mounting.

Preferably, the mounting part comprises a shell and an elastic limiting part, the shell is fixed on the cushion framework, and a spacing deformable limiting opening is formed in the elastic limiting part; the fixing piece comprises a head part with an outer diameter larger than the inner diameter of the limiting opening and a neck part with an outer diameter smaller than the inner diameter of the limiting opening.

Through adopting above-mentioned technical scheme, in actual installation, can stretch into spacing mouthful with the head, and spacing mouthful will be propped open, and the neck is in spacing mouthful, then accomplishes being connected of installed part and mounting until the head passes spacing mouthful.

Preferably, the fixing piece comprises a U-shaped connecting part, and a clamping gap is formed in the U-shaped connecting part; the installed part includes casing, elastic connection two locating parts that set up relatively in the casing, is formed with the joint gap between two locating parts.

Through adopting above-mentioned technical scheme, in actual installation, can penetrate the casing with U-shaped connecting portion in to pass the joint gap, two locating parts were located the joint clearance this moment, thereby realized being connected of U-shaped connecting piece and installed part.

To sum up, this application includes following at least one sofa cushion structure beneficial technical effect: the flexible wrapping layer is wrapped outside the cushion framework, and the criss-cross connecting rods are arranged in the cushion framework and can be tightly combined with the flexible wrapping layer, so that the separation probability of the flexible wrapping layer and the cushion framework is greatly reduced, the cushion can maintain the basic form, and the overall form stability of the cushion is improved; in addition, the cushion framework is detachably connected with the sofa framework by the connecting assembly, so that the cushion can be conveniently cleaned.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present application;

fig. 2 is a schematic view of a seat cushion frame in embodiment 1 of the present application;

FIG. 3 is a top plan view of the seat cushion frame of FIG. 1 showing the positional relationship of the seat cushion frame and the cushion assembly;

FIG. 4 is a schematic cross-sectional view of the cushioning assembly of FIG. 2 in connection with a flexible wrapping layer;

FIG. 5 is an exploded view of the connection assembly of FIG. 1;

fig. 6 is a schematic view of a cushion frame structure in embodiment 2 of the present application;

fig. 7 is a schematic sectional view showing the connection relationship of the connection assembly of fig. 5.

Description of reference numerals: 1. a cushion frame; 11. a high-order region; 12. a transition zone; 13. a low-order region; 14. a skeleton frame; 15. a transverse connecting rod; 16. a middle connecting rod; 161. a concave section; 17. a side connecting rod; 171. flattening; 18. an additional connecting rod; 19. a hook member; 2. a flexible wrapping layer; 3. a connection assembly; 4. a fixing member; 41. a housing; 411. flanging; 412. inserting a window; 413. a circular hole; 414. a waist-shaped hole; 42. an elastic limiting member; 421. a limiting port; 43. a U-shaped connecting portion; 44. an extension rod; 5. a mounting member; 51. a head portion; 52. a neck portion; 53. a body part; 54. a housing; 55. a limiting member; 56. a connection gap; 6. a buffer assembly; 61. an upper abutting member; 62. a lower abutting member; 63. an elastic member; 64. and (6) covering with cloth.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a sofa cushion structure.

Example 1:

referring to fig. 1 and 2, the sofa cushion structure comprises a cushion framework 1 and a flexible wrapping layer 2 wrapping the cushion framework 1, wherein the flexible wrapping layer 2 can be selected from a foaming material, the cushion framework 1 can be placed in a mold, the foaming material is poured, and a combination body with the flexible wrapping layer 2 firmly wrapping the cushion framework 1 is finally produced through the following conventional steps of milky white, after-curing and the like, so that the flexible wrapping layer 2 in the scheme can be tightly connected to the outside of the cushion framework 1, the probability of separating the flexible wrapping layer 2 from the cushion framework 1 is reduced, and the cushion can maintain a basic form for a longer service life; be fixed with two sets of coupling assembling 3 on the cushion skeleton 1, coupling assembling 3 is used for realizing that the cushion can dismantle and connect in the sofa frame, and coupling assembling 3 is including the mounting 4 that is fixed in cushion skeleton 1, be used for connecting at sofa frame and releasable connection in mounting piece 5 of mounting 4, and mounting 4 wherein can not be wrapped up by flexible parcel layer 2 completely.

The cushion frameworks 1 are not in the same plane but have a certain height difference, the cushion frameworks 1 are divided according to regions and comprise a high region 11, a low region 13 and a transition region 12, the distance between the cushion framework 1 in the high region 11 and the upper surface of the flexible wrapping layer 2 is a, the distance between the cushion framework 1 in the low region 13 and the upper surface of the flexible wrapping layer 2 is b, a is less than b, namely the cushion framework 1 in the high region 11 is higher than the cushion framework 1 in the low region 13, and the cushion elasticity at the high region 11 is better than that at the low region 13; the distance between the cushion framework 1 in the transition region 12 and the upper surface of the flexible wrapping layer 2 is between a and b, and the cushion framework 1 in the transition region 12 is obliquely arranged; the high-level region 11, the transition region 12 and the low-level region 13 are sequentially arranged along the front-back direction of the seat cushion framework 1, and the high-level region 11 is positioned at the foremost side of the seat cushion framework 1;

therefore, through the arrangement, the sliding and falling probability of the flexible wrapping layer 2 relative to the seat cushion framework 1 along the horizontal direction can be further reduced, and in addition, each area can provide the riding areas with different hardness for users, so that the requirements of different customers are met.

The cushion framework 1 is divided into a plurality of structures, and comprises a framework frame 14, a transverse connecting rod 15 fixed in the framework frame 14, and five longitudinal connecting rods fixed in the framework frame 14, wherein the transverse connecting rods 15 and the longitudinal connecting rods are arranged in a crossed manner; the longitudinal connecting rods are arranged along the front and back directions of the seat cushion framework 1, the longitudinal connecting rod positioned in the middle of the width direction of the seat cushion framework 1 is a middle connecting rod 16, the longitudinal connecting rods positioned on the left side and the right side of the middle connecting rod 16 are side connecting rods 17, and the longitudinal connecting rod positioned on the outer side of the side connecting rod 17 is an additional connecting rod 18;

both ends of the middle connecting rod 16 are respectively welded on the front side and the rear side of the framework frame 14, and the middle connecting rod 16 spans the transverse connecting rod 15 and does not abut against the transverse connecting rod 15; the part of the middle connecting rod 16 close to the rear side of the cushion framework 1 is a concave section 161, the concave section 161 is positioned in the low position area 13, and the concave section 161 is arranged in a concave manner downwards to form a small-range high-flexibility area which is suitable for children with small riding area and small weight;

the two ends of the side connecting rod 17 are respectively welded on the front side of the framework frame 14 and the transverse connecting rod 15, the part of the side connecting rod 17 close to the rear side of the cushion framework 1 is a flat section 171, the flat section 171 is positioned in the low-level area 13, the flat section 171 is flush with the framework frame 14 in the low-level area 13, but is higher than the lower concave section 161, a region with slightly poor flexibility and stronger supporting force is formed at the periphery of a high-flexibility region above the lower concave section 161, and the region is suitable for adults with larger riding area and larger weight;

both ends of the additional link 18 are welded to the front side of the skeleton frame 14 and the transverse link 15, respectively, and the additional link 18 serves to further improve the shape stability of the seat cushion.

The left end and the right end of the front side of the framework frame 14 are provided with hook pieces 19 which are tilted upwards, the upper ends of the hook pieces 19 can be selected to penetrate out of the flexible wrapping layer 2 and are used for being hung on the sofa frame, and the connection of the cushion and the sofa frame is realized together with the connecting component 3.

Referring to fig. 3 and 4, a plurality of sets of buffer assemblies 6 are disposed in the flexible wrapping layer 2, each buffer assembly 6 includes an upper abutting member 61, a lower abutting member 62, and an elastic member 63 disposed between the upper abutting member 61 and the lower abutting member 62, the elastic member 63 is a spring, and is covered with a cloth cover 64 at the periphery thereof to prevent a foaming layer from entering a gap of the spring during the extrusion process, the lower end of the elastic member 63 is fixed to the lower abutting member 62, and a gap is reserved between the upper end of the elastic member 63 and the upper abutting member 61;

it should be noted that when a user sits on the seat cushion, the user can generally be divided into two stages, the first stage is that the upper abutting part 61 does not contact the elastic part 63, so that the resistance of the user to sit down is small, and the softness is high, and the second stage is that the upper abutting part 61 starts to abut against the elastic part 63, so that the resistance of the user to sit down is large, and effective support can be provided for users with large mass, and therefore the arrangement can provide sectional support; in addition, after the cushion is used for a long time, the flexible wrapping layer 2 can age and shrink, the upper abutting part 61 can descend and contact the elastic part 63, and the elastic part 63 at the moment has the function of propping against the upper abutting part 61 to prevent the flexible wrapping layer 2 from excessively shrinking, so that the cushion can maintain a long service life;

the plurality of groups of buffer assemblies 6 are arranged in a U shape, and the U-shaped openings face the front side of the seat cushion framework 1, so that the contact range of a human body can be just met, namely, the buffer assemblies 6 can play a key role in supporting two thighs and buttocks of a user, the probability that the flexible wrapping layer 2 is excessively extruded in the ordinary use process is reduced, and the service life of the flexible wrapping layer 2 is prolonged; it should be noted here that the arrangement of the cushion modules 6 is not limited to the U-shape, and may be a rectangular shape.

Referring to fig. 5, the fixing member 4 includes a housing 41 and an elastic limiting member 42, the housing 41 is fixed on the seat cushion frame 1 (see fig. 1), the housing 41 is a plate-shaped metal plate, four corners of the housing are provided with four flanges 411 bending downward, a penetrating window 412 is formed in the middle of the housing, two opposite flanges 411 are symmetrically provided with penetrating hole sets, and each penetrating hole set includes a round hole 413 and a waist-shaped hole 414; the elastic limiting part 42 is a steel wire strip, the steel wire strip is bent approximately in a shape like a Chinese character 'ji', one end of the steel wire strip sequentially penetrates through the two waist-shaped holes 414, the other end of the steel wire strip only penetrates through the first round hole 413, finally, a limiting opening 421 with a deformable interval can be formed between two sections of the elastic limiting part 42, and the inserting window 412 is positioned above the limiting opening 421;

the mounting part 5 is a metal plate and sequentially comprises a head part 51, a neck part 52 and a body part 53, wherein the outer diameter of the head part 51 is larger than the inner diameter of the limiting opening 421, the outer diameter of the neck part 52 is smaller than the inner diameter of the limiting opening 421, the outer diameter of the body part 53 is larger than the inner diameter of the limiting opening 421, and the body part 53 is used for being fixed on a sofa frame; the head 51 can penetrate through the inserting window 412 and the limiting opening 421 from top to bottom until the neck 52 is clamped at the limiting opening 421, wherein when the head 51 penetrates through the limiting opening 421, the inner diameter of the limiting opening 421 is expanded, i.e., one section of the steel wire strip is bent outwards, and when the head 51 completely penetrates through the limiting opening 421, the inner diameter of the limiting opening 421 is restored to the original shape;

the cushion and the sofa frame are installed in a mode that the cushion with the fixing pieces 4 is installed on the installing pieces 5 of the sofa frame from bottom to top.

The implementation principle of the embodiment 1 is as follows: in the scheme, the flexible wrapping layer 2 can be selected as a foaming layer and wraps the cushion framework 1, and the cushion framework 1 is internally provided with criss-cross connecting rods which can be tightly combined with the flexible wrapping layer 2, so that the probability of separating the flexible wrapping layer 2 from the cushion framework 1 is greatly reduced, and the cushion can maintain a basic form; in addition, the cushion framework 1 is detachably connected with the sofa frame by the connecting component 3, so that the cushion can be conveniently cleaned.

Example 2:

the present embodiment is different from embodiment 1 in that the structures of the fixing member 4 and the mounting member 5 are exchanged, that is, the housing 41 is used for fixing to the sofa frame, and the body portion 53 is used for welding to the seat cushion frame 1.

Example 3:

referring to fig. 6 and 7, the present embodiment is different from embodiment 1 in that the connecting assembly 3 is different, specifically, the fixing member 4 includes a U-shaped connecting portion 43 and extension rods 44 fixed at two ends of the U-shaped connecting portion 43, the extension rods 44 are welded on the seat cushion frame 1, the U-shaped connecting portion 43 is matched with the mounting member 5, and a clamping gap is formed in the U-shaped connecting portion 43;

the mounting member 5 includes a housing 54, two opposite limiting members 55 elastically connected in the housing 54, and a connection gap 56 is formed between the two limiting members 55; the U-shaped connecting part 43 can penetrate into the machine shell 54 from top to bottom and penetrate through the connecting gap 56 until the limiting part 55 is positioned in the clamping gap, and at the moment, the limiting part 55 has an anti-falling effect on the U-shaped connecting part 43, so that the connection between the mounting part 5 and the fixing part 4 is realized; when the user forcibly pulls the U-shaped connecting portion 43 outward, the U-shaped connecting portion 43 can be pulled out from the limiting member 55;

the cushion and the sofa frame are installed in a way that the cushion with the fixing piece 4 is installed on the installation piece 5 of the sofa frame from top to bottom.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A sofa cushion structure is characterized in that: the cushion comprises a cushion framework (1) and a flexible wrapping layer (2) wrapping the cushion framework (1), wherein the cushion framework (1) comprises a framework frame (14), at least one transverse connecting rod (15) fixed in the framework frame (14) and at least one longitudinal connecting rod fixed in the framework frame (14), and the transverse connecting rods (15) and the longitudinal connecting rods are arranged in a crossed mode; be fixed with at least a set of coupling assembling (3) on cushion skeleton (1), coupling assembling (3) are including being fixed in mounting (4) of cushion skeleton (1), be used for connecting at sofa frame and releasable connection in mounting piece (5) of mounting (4).

2. The sofa cushion structure according to claim 1, wherein: including high-order district (11), low level district (13) and transition region (12), the upper surface interval of cushion skeleton (1) in high-order district (11) and flexible parcel layer (2) is a, and the upper surface interval of cushion skeleton (1) in low level district (13) and flexible parcel layer (2) is b, and a < b, and the upper surface interval of cushion skeleton (1) in transition region (12) and flexible parcel layer (2) is between a and b.

3. The sofa cushion structure according to claim 2, wherein: the high-order district (11) of low level district (13) is more close to the rear side of cushion skeleton (1), and transition zone (12) are located between high-order district (11) and low level district (13).

4. The sofa cushion structure according to claim 1, wherein: be equipped with multiunit buffering subassembly (6) in flexible parcel layer (2), buffering subassembly (6) include butt piece (61), lower butt piece (62), locate butt piece (61) and elastic component (63) between lower butt piece (62), and the lower extreme of elastic component (63) is fixed under on butt piece (62), and the upper end of elastic component (63) remains the clearance with last butt piece (61).

5. The sofa cushion structure according to claim 4, wherein: the buffer assemblies (6) are arranged in a U shape, and the U-shaped openings face the front side of the cushion framework (1).

6. The sofa cushion structure according to claim 1, wherein: longitudinal tie rod sets up along the fore-and-aft direction of cushion skeleton (1), and the longitudinal tie rod that is located cushion skeleton (1) width direction middle part is intermediate link (16), and intermediate link (16) are close to the part of cushion skeleton (1) rear side and are down concave section (161), and down concave section (161) are the undercut setting.

7. The sofa cushion structure according to claim 6, wherein: the longitudinal connecting rods positioned on two sides of the middle connecting rod (16) are side connecting rods (17), the part, close to the rear side of the seat cushion framework (1), of each side connecting rod (17) is a flat section (171), and each flat section (171) is higher than each lower concave section (161).

8. The sofa cushion structure according to claim 1, wherein: the fixing piece (4) comprises a shell (41) and an elastic limiting piece (42), the shell (41) is fixed on the cushion framework (1), and a limiting opening (421) with deformable intervals is formed in the elastic limiting piece (42); the mounting piece (5) comprises a head (51) with an outer diameter larger than the inner diameter of the limiting opening (421) and a neck (52) with an outer diameter smaller than the inner diameter of the limiting opening (421).

9. The sofa cushion structure according to claim 1, wherein: the mounting piece (5) comprises a shell (41) and an elastic limiting piece (42), the shell (41) is fixed on the cushion framework (1), and limiting openings (421) with deformable intervals are formed in the elastic limiting piece (42); the fixing piece (4) comprises a head part (51) with the outer diameter larger than the inner diameter of the limiting opening (421) and a neck part (52) with the outer diameter smaller than the inner diameter of the limiting opening (421).

10. The sofa cushion structure according to claim 1, wherein: the fixing piece (4) comprises a U-shaped connecting part (43), and a clamping gap is formed in the U-shaped connecting part (43); the mounting part (5) comprises a machine shell (54) and two limiting parts (55) which are elastically connected into the machine shell (54) and are arranged oppositely, and a connecting gap (56) is formed between the two limiting parts (55).

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