CN2555723Y

CN2555723Y - Frame of sofa

Info

Publication number: CN2555723Y
Application number: CN 01271673
Authority: CN
Inventors: 尹文庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-22
Filing date: 2001-11-06
Publication date: 2003-06-18
Anticipated expiration: 2011-11-06

Abstract

The utility model relates to the art of sofa framework technology and is designed in a compact and reasonable structure. The utility model is characterized in that a first connecting rod and a second connecting rod are integrated with a mainboard; the upper ends of the first connecting rod and a fourth connecting rod as well as the lower ends of the fourth connecting rod and a fifth connecting rod and a base are fixedly hinged; a sixth, a seventh, a eighth and a tenth connecting rods form two coupled four-bar linkage mechanism with the mainboard and an angle iron; one end of a twelfth connecting rod and a thirteenth connecting rod is respectively hinged with both ends of a eleventh connecting rod; the middle part of the eleventh connecting rod is movably fixed with the mainboard; the other end of the thirteenth connecting rod is hinged with the middle part of the seventh connecting rod; the other end of the twelfth connecting rod is hinged with the middle part of the fifth connecting rod. In addition, the utility model also includes a telescopic manual structure for connecting and driving the thirteenth connecting rod, an extension spring is arranged between the first and the fifth connecting rods in the left and the right brackets, and an extension spring is also arranged between the connecting rod in the manual structure and the mainboard. The characteristic is that the first connecting rod is an integral set square; the upper ends of the second connecting rod and the fifth connecting rod are movably hinged directly with the mainboard. The utility model has the advantages of compact and reasonable structure and design, flexible turning and low cost.

Description

Frame of sofa

Technical field

The utility model relates in the sofa metallic framework Frame of sofa technical field of especially can stretching.

Background technology

Along with improving constantly of living standards of the people, flexible sofa is lived in the family because use reason such as comfortable just constantly to come into people, particularly along with technology is further improved, can stretch and also emerge in large numbers constantly for people's sofa that uses of lying, the someone designs and develops this class Frame of sofa for this reason, it as the patent No. 99222894.8 Chinese patent " the adjustable core mechanism of multi-functional telescopic sofa ", the utility model relates to the adjustable core mechanism of a kind of multi-functional telescopic sofa, base is a frame structure, each articulated two connecting rod on two frames of base, a jointed gear unit and this four rod hinge connections, jointed gear unit is simultaneously hinged with support, hinge 3 on the support, 4,5,6,7 respectively with connecting rod on hinge 3 ', 4 ', 5 ', 6 ', 7 ' hinged, an articulated connecting rod telescoping mechanism on the support, square steel A is installed on the support, the square steel other end connects corresponding rod member, have a positioner on the square steel A, this utility model can play the effect of supporting human leg and pin, make the people that better comfort be arranged, play the effect of having a rest and loosening, overall structure is guaranteeing transmission, can support human weight in the time of Telescopic, and can stand long-term, use repeatedly and can not produce the clip phenomenon, structure is very unique.It no doubt has its progressive one side, but whole frame for movement designs compact and reasonable not enough, as the hinge on the

support

3,4,5,6,7 respectively with connecting rod on hinge 3 ', 4 ', 5 ', 6 ', 7 ' hinged, saying exactly to have 5 pin joints to be connected with connecting rod on the support, being articulated and connected, it is many to count, and 3, the hinged of 4 sequence numbers is that this connecting rod is hinged on the mainboard by middle hinged place on a connecting rod, in addition its L ₃The sequence number knee will by other connecting rod again with L ₇Sequence number connecting rod and sequence number 6 pin joints are hinged, it is succinct inadequately that structure seems, the connecting rod number increases, and increases manufacturing process complexity and production cost, the manual structure that also has it is to use hand-guided, the people will lean to one side to pull handle during use, and inconvenient part is also arranged, and the device center of gravity is also than higher, stability is just weaker, topple over easily, rotate underaction, these aspects need further be improved.

Summary of the invention

Technical problem to be solved in the utility model provides the simpler compact and reasonable again of a kind of flexible, structure, stretches flexibly, is not easy the Frame of sofa of screens.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this kind Frame of sofa, it includes base, base connects angle bar and back rest on the toe board respectively by the connecting rod transmission stretching structure in the support of the left and right sides, connecting rod transmission stretching structure is first connecting rod and second connecting rod, mainboard passes through integral body of tie point composition separately, thereby main body as support, on the main body of support, be distributed with the location backing pin, first connecting rod upper end and the 4th small end, while the 4th connecting rod, the 5th connecting rod lower end and base are and are fixedly hinged, the 6th, seven, eight, ten connecting rods and mainboard, angle bar is formed two interlock four-bar linkage structures, connect angle bar again, the 12,13 connecting rods, one end is with the 11 connecting rod two ends respectively and is movably hinged, and the 11 connecting rod is movable fixing by axle on interstitial hole and the mainboard, the seven-link assembly interstitial hole is and is movably hinged in the 13 connecting rod other end and the interlock four-bar linkage structure, the 12 connecting rod other end and the 5th connecting rod interstitial hole are for being movably hinged, other has the manual structure that connects and drive the 13 connecting rod expanding-contracting action, drawn extension spring between first connecting rod and the 5th connecting rod in the support of the left and right sides, extension spring between connecting rod and the mainboard in the simultaneously manual structure, it is characterized in that first connecting rod is the set square of piece integral body, the second connecting rod upper end directly is movably hinged with the 5th small end and mainboard.

Above-mentioned manual structure is that the 16 connecting rod outer end and the tenth seven-link assembly one end are for being movably hinged, be in the middle of the tenth seven-link assembly other end and the 13 connecting rod and be movably hinged, the extension spring hole is arranged in the middle of the tenth seven-link assembly, the 16 connecting rod dashes simultaneously square hole, be plugged with main shaft, it is through in the support mainboard hole, the left and right sides, also is provided with the positioning pin on the 16 connecting rod.Perhaps for be hinged on versatilely on the support set square its be pressed on one side above the backing pin of the 16 connecting rod location, another side is connected with drag-line by pin-and-hole, the drag-line other end be fixed on the sofa handrail upper ejector lever and be connected, spanner is installed in the spanner seat, and the extension spring hole is arranged on the set square.

Compared with prior art, advantage of the present utility model is that all members are all formed by punching of the steel plate, thereby process convenient, with low cost, low price installs that angle bar flexible of leg rest reach by the rotational deformation of forming two groups of continuous quadrangle members, holding capacity is reasonable, angle bar all is subjected to downward force and contracts not, and stressed when the angle bar front end, the moment that promptly produces connecting rod link then contracts, reasonable in design, adopt the four-bar linkage structure principle, the simple structure compactness, the back can be toppled over backward makes sofa for people's sleep, also can automatically reset, the people is sitting in and does not get off just can change posture on the sofa and sit or lie, and is easy to use, and whole device for mechanical is compared than background technology and had the simpler characteristics of structure, hinged decreased number between support and the kinematic link, have only 4, wherein original 4,3 sequence number pin joints are directly hinged, reduce by a connecting rod, also reduced mechanical center of gravity, first connecting rod adopts set square, direct and connecting rod L ₇Be connected with sequence number 6 pin joints, also simplify the structure, easily production and assembly, and make mechanism action flexibly, be not easy screens, whole center of gravity is lower, good stability, upset is not easy to topple.

Description of drawings

Fig. 1 Frame of sofa lateral plan (from the inboard);

Fig. 2 Frame of sofa lateral plan (from the outside);

Fig. 3 Frame of sofa vertical view;

Fig. 4 Frame of sofa lateral plan (extended configuration);

The manual structural front view of Fig. 5;

The manual structure vertical view of Fig. 6;

Fig. 7 Frame of sofa folded position schematic diagram;

Fig. 8 Frame of sofa open mode schematic diagram (can sit) for the people;

Fig. 9 Frame of sofa open mode schematic diagram (can sleep) for the people.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Anticipate as shown in the figure, this kind Frame of sofa includes base, and the connecting rod transmission stretching structure of base in the support of the left and right sides connects angle bar 9 and the back rest on the toe board respectively.Connecting rod transmission stretching structure is that first connecting rod is that set square 1 passes through integral body of tie point composition separately with second connecting rod 2, mainboard 3, thereby main body as support, on the main body of support, be distributed with location backing pin A, B, C, the 23,24 connecting rods 23,24 and set square 1 are fixedly hinged, hinged securement the 25 connecting rod 25 constitutes back rest on the 23 connecting rod 23 and the 24 connecting rod 24 again, as schematically shown in Figure 1.Set square 1 upper end and the 4th connecting rod 4 upper ends, second connecting rod 2 upper ends and the 5th connecting rod 5 upper ends are and are movably hinged, simultaneously the 4th connecting rod 4, the 5th connecting rod 5 lower ends and base are and are fixedly hinged, six, seven, eight, ten connecting

rods

6,7,8,10 and mainboard 3, angle bar 9 are formed two interlock four-bar linkage structures, connect angle bar again.To be that the 6th connecting rod 6 is long-armed be movably hinged with mainboard 3 respectively with seven-link assembly 7 these two interlock four-bar linkage structures, the 8th connecting rod 8 galianconism constitute a quadrangle with seven-link assembly 7 and the 6th connecting rod 6 long-armed being movably hinged respectively, the 8th connecting rod 8 is long-armed, angle bar 9, the tenth connecting rod 10 and the 6th connecting rod 6 galianconism constitute a quadrangle again, two quadrangles are connected with the 6th connecting rod 6 middle common hinge by the 8th connecting rod 8, be mounted with the location backing pin on the 8th connecting rod 8, form a leg body frame, be movably hinged with the 14 connecting rod 14 below the angle bar 9, the 14 connecting rod 14 and the 15 connecting rod 15 are movably hinged, and are movably hinged in the middle of the 15 connecting rod 15 and in the middle of the tenth connecting rod 10, thereby the leg subframe of composition and angle bar 9 relative motions, as schematically shown in Figure 4.The 12,13 connecting rods 12,13 1 ends are with the 11 connecting rod 11 two ends respectively and are movably hinged, and the 11 connecting rod 11 is movable fixing by axle on interstitial hole and the mainboard, seven-link assembly 7 interstitial holes are and are movably hinged in the 13 connecting rod 13 other ends and the interlock four-bar linkage structure, the 12 connecting rod 12 other ends and the 5th connecting rod 5 interstitial holes are for being movably hinged, as schematically shown in Figure 1, 2.Other has the manual structure that connects and drive the 13 connecting rod 13 expanding-contracting actions, this manual structure can for the 16 connecting rod 16 outer ends and the tenth seven-link assembly 17 1 ends for being movably hinged, be in the middle of the tenth seven-link assembly 17 other ends and the 13 connecting rod 13 and be movably hinged, in the middle of the tenth seven-link assembly 17 the extension spring hole is arranged, the 16 connecting rod 16 dashes square hole is arranged simultaneously, be plugged on the main shaft 18 and fix with nut and bolt, it is through in the support mainboard hole, the left and right sides, also is provided with the positioning pin on the 16 connecting rod 16.Extension spring between set square 1 and the 5th connecting rod 5 in the support of the left and right sides has been drawn extension spring between the tenth seven-link assembly 17 and the mainboard 3 in the simultaneously manual structure.Convenient in order to use, manually structure also can be designed as the set square that is hinged on versatilely on the support 22 it is pressed in above the 16 connecting rod 16 location backing pins on one side, another side is connected with drag-line 21 by pin-and-hole, the drag-line other end be fixed on sofa handrail upper ejector lever 20 and be connected, spanner is installed in the spanner seat 19, the extension spring hole is arranged on the set square 22, and extension spring between the mainboard 3, as Fig. 5,6 signals.

Its operation principle is as follows, when rotating counterclockwise handle, it drives main shaft and rotates, connecting rod also rotates simultaneously, by the 16, hinge point is behind the stressed dead point of the alignment of shafts and the 13 connecting rod outer end hinge point between ten seven-link assemblies, under the extension spring effect, mainboard whole with the 5th connecting rod trend that furthers, because the 12 link supports, the 11 connecting rod is rotated counterclockwise around the middle hinge point, promote the 13 connecting rod forward, thereby promoting seven-link assembly rotates around the upper end fixed hinge, by hinge on mainboard the 7th, the 6th connecting rod, the 8th connecting rod, two quadrangles distortion that link to each other that the tenth connecting rod and angle bar are formed are flexible, and reaching angle bar has with a certain distance from backrest, and horizontal level when the upright position is to stretching, extension during by indentation, gripper shoe on the 15 connecting rod also is horizontal simultaneously, the location backing pin blocks the 6th connecting rod top to the flexible limit on the 8th connecting rod by fixing, the displacement forward of whole bracket main body this moment, and backrest can recede increases by 5 degree.Under the even stressing conditions of angle bar is motionless, only under front end is stressed situation, angle bar is by two continuous quadrilateral connecting rod mechanisms, arc trajectory contracts after rotating backward, simultaneously under handle helps, move after making the 13 connecting rod, promote the tenth seven-link assembly and clockwise rotate, because the 5th link supports effect, the agent structure of formations such as mainboard is moved backward, widen, extension spring is elongated with the 5th connecting rod distance, clockwise rotate until the 16 connecting rod, make its outer end hinges put the dead point, location backing pin blocks the tenth seven-link assembly top above it, at this moment, angle bar is retracted into and requires position and vertical, and backrest automatically resets under the body weight effect.Use sofa handrail upper ejector lever principle too, when the people spurs the sofa handrail upper ejector lever, it spurs the 22 connecting rod by drag-line and rotates, locate backing pin on the following compressing of such the 22 connecting rod the 16 connecting rod, impel its flexible rotating mechanism to open, it is same as described above with the gathering principle to open principle as for it, no longer launches here to describe.

Claims

1, a kind of Frame of sofa, it includes base, base connects angle bar and back rest on the toe board respectively by the connecting rod transmission stretching structure in the support of the left and right sides, connecting rod transmission stretching structure is first connecting rod and second connecting rod (2), mainboard (3) passes through integral body of tie point composition separately, thereby main body as support, on the main body of support, be distributed with the location backing pin, first connecting rod upper end and the 4th connecting rod (4) upper end, while the 4th connecting rod (4), the 5th connecting rod (5) lower end and base are and are fixedly hinged, the 6th, seven, eight, ten connecting rods (6,7,8,10) with mainboard (3), angle bar (9) is formed two interlock four-bar linkage structures, connect angle bar again, the 12,13 connecting rods (12,13) end is with the 11 connecting rod (11) two ends respectively and is movably hinged, and the 11 connecting rod (11) is movable fixing by axle on interstitial hole and the mainboard, seven-link assembly (7) interstitial hole is and is movably hinged in the 13 connecting rod (13) other end and the interlock four-bar linkage structure, the 12 connecting rod (12) other end and the 5th connecting rod (5) interstitial hole are for being movably hinged, other has the manual structure that connects and drive the 13 connecting rod expanding-contracting action, drawn extension spring between first connecting rod and the 5th connecting rod (5) in the support of the left and right sides, extension spring between connecting rod and the mainboard (3) in the simultaneously manual structure, it is characterized in that first connecting rod is the set square (1) of piece integral body, second connecting rod (2) upper end directly is movably hinged with the 5th connecting rod (5) upper end and mainboard (3).

2, Frame of sofa according to claim 1, it is characterized in that described two interlock four-bar linkage structures are that the 6th connecting rod (6) is long-armed and are movably hinged with mainboard (3) respectively with seven-link assembly (7), the 8th connecting rod (8) galianconism constitutes a quadrangle with seven-link assembly (7) and long-armed being movably hinged of the 6th connecting rod (6) respectively, the 8th connecting rod (8) is long-armed, angle bar (9), the tenth connecting rod (10) constitutes a quadrangle again with the 6th connecting rod (6) galianconism, be mounted with the location backing pin on the 8th connecting rod, form a leg body frame, angle bar is movably hinged with the 14 connecting rod (14) below (9), the 14 connecting rod (14) is movably hinged with the 15 connecting rod (15), and being movably hinged with the tenth connecting rod (10) is middle in the middle of the 15 connecting rod (15), thereby the leg subframe of composition and angle bar (9) relative motion.

3, Frame of sofa according to claim 1, it is characterized in that described manual structure is that the 16 connecting rod (16) outer end and the tenth seven-link assembly (17) one ends are for being movably hinged, be in the middle of the tenth seven-link assembly (17) other end and the 13 connecting rod (13) and be movably hinged, the extension spring hole is arranged in the middle of the tenth seven-link assembly (17), the 16 connecting rod (16) dashes simultaneously square hole, be plugged with main shaft (18), it is through in the support mainboard hole, the left and right sides, and the 16 connecting rod also is provided with the positioning pin on (16).

4, Frame of sofa according to claim 1, it is characterized in that described manual structure for be hinged on versatilely on the support set square (22) its be pressed on one side above the backing pin of the 16 connecting rod (16) location, another side is connected with drag-line (21) by pin-and-hole, the drag-line other end be fixed on sofa handrail upper ejector lever (20) and be connected, spanner is installed in the spanner seat (19), and set square has the extension spring hole on (22).