CN2796530Y

CN2796530Y - Folding retractable chair

Info

Publication number: CN2796530Y
Application number: CN 200520057024
Authority: CN
Inventors: 刘健青
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-18
Filing date: 2005-04-18
Publication date: 2006-07-19
Anticipated expiration: 2015-04-18

Abstract

The utility model discloses a folding retractable chair which is composed of a base, a thigh supporting frame, a shank supporting frame, a switching device, a folding device and a retractable device, wherein both sides of the base are connected with the folding device through the switching device and the folding device is connected with the thigh supporting frame. The thigh supporting frame is connected with the shank supporting frame through the retractable device, thereby, the aims of tilting and fastening are realized.

Description

A kind of nestable retractable seat

Technical field

The utility model relates to a kind of nestable retractable seat.

Background technology

At present, be used for the pin carriage that sofa, leisure chaise longue, manual massage armchair, electric massage chair or the like give person's shank (thigh and shank) support, can cooperate the device that couches of chair portion to reach the purpose that a person loosens shank, leisure, also can cooperate different lie a mode TV, reading, nap.Traditional pin carriage can be divided into split type and two kinds of half folding formulas, split type pin carriage, the pin carriage structurally is to separate independently with seat, advantage is the seat portion simple and beautiful structure, shortcoming is that leg support partly takes up room, and seat is when moving, the pin carriage can not be synchronously and seat move.Partly roll over formula pin carriage, pin carriage and seat are disjunctors, and pin carriage and seat cushions can be done different relative angle adjustment by different needs, the angle adjustment that this class carriage is fixed by the multistage hinge of some calibration formulas usually is as 30 degree, 90 degree, three static stalls of 180 degree.And seat person will adjust chair angle the time at every turn, the adjusting of must standing up, multistage hinge can be sent the sound of rattling away during adjusting, on profile, seat cushion can only become an angle of 90 degrees with ground when partly rolling over formula pin carriage and amounting to fully, can influence the seat outward appearance like this and make it become heavy, and seat person can be rotatablely moved by the front and back of obstruction chair when being sitting in chair.

Summary of the invention

The purpose of this utility model is to provide a kind of pin carriage of nestable retractable seat, can overcome the above-mentioned shortcoming that has split type and half folding seats pin carriage now.

In order to achieve the above object, technical solution adopted in the utility model is: a kind of nestable retractable seat, form by pedestal, big leg support, little leg support, switching device, folding device, retractor device, the switching device that passes through in the both sides of pedestal connects folding device, folding device connects big leg support, big leg support connects little leg support by a retractor device, thereby realizes the purpose with fastening.

Below in conjunction with description of drawings the specific embodiment of the present utility model is further elaborated

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION figure of the utility model nestable retractable seat leg support and mounting and base

Fig. 2 is Fig. 1 assembled state figure

Vertical view when Fig. 3 is the expansion of the utility model nestable retractable seat leg support

Side view when Fig. 4 is the leg support recovery

Fig. 5 is the vertical view of Fig. 4

Fig. 6 is the front view of Fig. 4

Fig. 7 is that leg support is opened a half vertical view

Fig. 8 is that retractor device is opened a half side view

Fig. 9 is that switch and folding device are opened a half side view

Figure 10 is leg support vertical view when opening fully

Figure 11 is retractor device side view when opening fully

Figure 12 is a switch and folding device side view when opening fully

Figure 13 is leg support vertical view when reclaiming fully

Figure 14 is retractor device side view when reclaiming fully

Figure 15 is switch folding device side view when reclaiming fully

As shown in accompanying drawing 1, Fig. 2, Fig. 3, the utility model nestable retractable seat overall structure is made up of seat base 1, pedestal A, chair frame 2, the switching device B that passes through in the both sides of pedestal A connects folding device C, folding device C connects big leg support D, big leg support D connects shank carriage F by a retractor device E, thereby realizes the purpose with fastening.

Pedestal A welds two steel discs 12,13 by L shaped steel spare 11 front and back of two symmetries and forms, and is shaped as squarely, is drilled with several holes 110 on L shaped steel spare 11, is used for connecting switching device B, folding device C and big leg support D.Vertically be welded with two parallel bent steel discs 14 in the centre of pedestal A, two parallel bent steel discs 14 are provided with a fixture 15 between the folder at song place, fixture 15 is to be made of several triangular pieces bodies, one end of fixture 15 and one that is located at bent steel disc 14 centres horizontal round steel bar 16 rivetings alive, the other end is connected with the round iron pipe 21 of switching device B by a revolving part 17, formed the turning joint fulcrum of pedestal A and seat base 1, be provided with a hollow steel cylindrical tube 18 at the back middle part of fixture 15, be used for connecting pedestal A and seat base 1.

Big leg support D of the present utility model is riveted on respectively on the L shaped steel spare 11 of pedestal both sides, and the place ahead is fixing by circular rod iron 20 welding, is provided with two plastic cement planchets 21 on circular rod iron 20, the impact sound when reclaiming as attenuating shank carriage F.Two inner side edges of big foot carriage D and shank carriage F clip together, guide rail when stretching as shank carriage F, shank carriage F welds two steel pipes 23 by two U shaped steel spares, 22 front and back, 24 form, be shaped as square, U-shaped steel part 22 penetrates two inner side edges of big foot carriage D, bound feet carriage F is just collapsible like this, be stretched in the big leg support D, can in U shaped steel spare 22, stick wear-resisting gummed paper, being used for shank carriage F shrinks at big leg support D inner side edge, reduce the sound that rubs between steel and the steel during stretching, extension, the place ahead transverse weld at shank carriage F has a steel disc 25, on steel disc 25, be drilled with two

holes

26,27, be used for fixing the leather shank foot pad of chair.

Connecting rod 30 1 ends of retractor device E are fixed on steel disc 13 belows in pedestal A the place ahead, the other end and the pole 31 movable riveted joints of being located at big leg support D below, the other end activity of pole 31 is riveted on the contraction pole 32 on the shank carriage F, and the contraction pole 32 on the shank carriage F is connected with horizontal steel disc 25 on the shank carriage F.When big leg support D opens, pole 31 is that rotation is done at the center with connecting rod 30, thereby driving contraction pole 32 moves forward, and contraction pole 32 is to be connected on the shank carriage F, stretch forward by parallel in the big leg support D thereby promote shank carriage F, on the contrary, when pole 31 reclaims, rotate in the opposite direction, drive contraction pole 32 and move backward, shank carriage F just withdraws in the big leg support D like this.

Switching device B bends into a bat-handle switch 41 by a straight round iron pipe 40 at the one end, can do different materials and outward appearance processing according to different needs, at the other end of round iron pipe 40 below the L shaped steel spare 11 of pedestal A, and bend steel part 42 by two U-shapeds and fixedly be placed in above bent steel part 14 pars convolutas of pedestal A, be provided with a revolving part 43 at round iron pipe 40 near L shaped steel spare 11 inboards, be provided with a C shape rotary sleeve 44 in the revolving part 43, revolving part 43 1 ends are connected on the round iron pipe 40, the other end connects C shape rotary sleeve 44, and the other end of C shape rotary sleeve 44 connects the back-moving spring 45 of folding device C.Folding device C is located at pedestal L shaped steel spare 11 inboards by two revolving parts 50, two revolving parts, 50 1 ends are fixed on the round iron pipe 40 of switching device B, and be welded into an angle of 90 degrees with two revolving parts 43 of switching device B, the other end and a folding rod 51 riveted joints, the other end of folding rod 51 and moving trihedral connector 52 a drift angles riveted joint being located at pedestal L shaped steel spare inboard 11, a base angle of triangle connector 52 connects set C shape rotary sleeve 44 in the switching device revolving part 43 by a back-moving spring 45.Another base angle of triangle connector 52 connects the bottom of big leg support D by a folding rod 53.When bat-handle switch 41 is opened, be enclosed within revolving part 50 rotation forward simultaneously on the round iron pipe 40, thereby driving folding rod 51 goes ahead, walking to promote again simultaneously triangle connector 52 before the folding rod 51 rotates, when triangle connector 52 rotates, the folding rod 53 that is connected big leg support D with its base angle is outwards opened big leg support D, and back-moving spring 45 effects of folding device C are to make auxiliary pulling force, self-return when helping recovery when big leg support D reclaims the arrival end.As large and small leg support D, when F opens fully, as long as seat person's body wt acts on pedestal A, the straight line force of the rapid-result support of each component part of folding device C holds up seat person's shank.When seat person body forward is crooked, the reach of center of gravity power, the height support force disappears, and seat person's shank one firmly can reclaim large and small leg support D, F slightly.What deserves to be mentioned is that the opening and reclaim can be directly to be pushed away by switching device, hand push, pin of large and small leg support D, F spurs large and small leg support D, F and finish.

Inclination of the present utility model and kowtow tight principle and be achieved in that and be meant as large and small leg support D, when F opens, the pedestal A of carriage and seat base 1 wing drop, the person of inviting guests to be seated has a kind of feeling of couching; Kowtow tightly be meant when retractor device E open large and small leg support D, F have been stretched fully after, must kowtow switch tightly in the position of opening fully, otherwise the weight of seat person's shank can be depressed carriage and reclaim.Traditional carriage is to come fully as devices of the multistage strand of metal by some, but this practical full mold is seat person's self weight comes driving switch device B and folding device C to come self-fastening.Inclination of the present utility model is to utilize two U-shapeds that are placed in bent steel part 14 pars convolutas of pedestal A top to bend steel part 42, and be inserted in the round iron pipe 40 of switching device B at the hollow part that U-shaped is bent steel part 42, being provided with a revolving part 43 on round iron pipe 40 is connected with pedestal fixture 15, and fixture 15 and horizontal round steel bar 16 rivetings alive, formed: seat base 1 can have the fulcrum joint of rotation with pedestal A, the relative angle of pedestal A and seat base 1, seat base 1 and the relative distance that is positioned at the pedestal of switching device B.When switching device B opens, drive fixtures 15 rotations with the revolving part that is connected on the round iron pipe 40 43, fixture 15 relatively rotates around horizontal round steel bar 16, and angle is diminished, and the height step-down makes 1 relative tilt at the bottom of pedestal A and the chair.Kowtowing tight principle is to realize like this, after switch opens, seat person's weight is depressed to the tail end of pedestal A, pedestal A and seat base 1 continue through the fulcrum joint have relative power up to run into angle spacing till, make revolving part 43 strong continuation that are connected with pedestal A fixture 15 change (just opening direction) toward clockwise direction, and just round iron pipe 40 rotations of pull switch device B of this burst power, promptly switching device B is remained on open mode, and switching device B simultaneously will be big, shank carriage D, F opens, under the present like this person gravity effect above the waist, leg support just stays open state always.That is to say by this fastening function, driven switching device B, folding device C and reached the shank of borrowing power above the waist to hold up the health lower part of the body.When the seat person wants to stand up, become normal seat appearance by couching, its past reach of gravity is above the waist kowtowed tight device mistake and has been moved gravity, causes big leg support D to lose support force, and seat person only needs with shank carriage one to be pushed away backward, and large and small leg holder D, F just reclaim easily.

Claims

1, a kind of nestable retractable seat, formed by seat base (1), pedestal (A), chair frame (2), it is characterized in that: the switching device (B) that passes through in the both sides of pedestal (A) connects folding device (C), folding device (C) connects big leg support (D), big leg support (D) connects little leg support (F) by a retractor device (E), thereby realizes the purpose with fastening.

2, nestable retractable seat as claimed in claim 1, it is characterized in that: pedestal (A) is made up of welding two steel discs (12), (13) before and after the L shaped steel spare (11) of two symmetries, be shaped as square, on L shaped steel spare (11), be drilled with several holes (110), be used for connecting switching device (B), folding device (C) and big leg support (D).3、

3, nestable retractable seat as claimed in claim 2, it is characterized in that: vertically be welded with two parallel bent steel discs (14) in the centre of pedestal (A), two parallel bent steel discs (14) are provided with a fixture (15) between the folder at song place, fixture (15) is to be made of several triangular pieces bodies, a horizontal round steel bar (16) riveting alive that one end of fixture (15) is middle with being located at bent steel disc (14), the other end is connected with the round iron pipe (21) of switching device (B) by a revolving part (17).

4, nestable retractable seat as claimed in claim 1 is characterized in that: little leg support (F) is made up of welding two steel pipes (23), (24) before and after the two U shaped steel spares (22), is shaped as squarely, and U-shaped steel part (22) penetrates two inner side edges of big foot carriage (D).

5, nestable retractable seat as claimed in claim 1, it is characterized in that: connecting rod (30) one ends of retractor device (E) are fixed on steel disc (13) below in pedestal (A) the place ahead, the other end and the movable riveted joint of the pole (31) of being located at big leg support (D) below, the other end activity of pole (31) is riveted on the contraction pole (32) on the little leg support (F), and the contraction pole (32) on the little leg support (F) is connected with horizontal steel disc (25) on the little leg support (F).

6, nestable retractable seat as claimed in claim 1, it is characterized in that: switching device (B) is to bend into a bat-handle switch (41) by a straight round iron pipe (40) at the one end, in the other end of round iron pipe (40) L shaped steel spare (11) below, and bend steel part (42) by two U-shapeds and fixedly be placed in above the bent steel part of pedestal (A) (14) pars convoluta through pedestal (A).

7, nestable retractable seat as claimed in claim 6, it is characterized in that: be provided with a revolving part (43) near L shaped steel spare (11) inboard at round iron pipe (40), be provided with a C shape rotary sleeve (44) in the revolving part (43), revolving part (43) one ends are connected on the round iron pipe (40), the other end connects C shape rotary sleeve (44), and the other end of C shape rotary sleeve (44) connects the back-moving spring (45) of folding device (C).

8, nestable retractable seat as claimed in claim 1, it is characterized in that: folding device (C) is to be located at pedestal L shaped steel spare (11) inboard by two revolving parts (50), two revolving parts (50) one ends are fixed on the round iron pipe (40) of switching device (B), and be welded into an angle of 90 degrees with two revolving parts (43) of switching device (B), the other end and a folding rod (51) riveted joint, the other end of folding rod (51) and a moving trihedral connector (52) the drift angle riveted joint of being located at pedestal L shaped steel spare inboard (11), one base angle of triangle connector (52) connects set C shape rotary sleeve (44) in the switching device revolving part (43) by a back-moving spring (45), and another base angle of triangle connector (52) connects the bottom of big leg support (D) by a folding rod (53).