CN2194654Y

CN2194654Y - Adjustable inclination chair base

Info

Publication number: CN2194654Y
Application number: CN 94213606
Authority: CN
Inventors: 曾春荣
Original assignee: Taiwan Shin Yeh Enterprise Co Ltd
Current assignee: Taiwan Shin Yeh Enterprise Co Ltd; Xinye Enterprise Co Ltd
Priority date: 1994-06-02
Filing date: 1994-06-02
Publication date: 1995-04-19
Anticipated expiration: 2004-06-02

Abstract

The utility model relates to an adjustable supine inclination chair base, comprising a fixing frame and a connection frame, wherein, front ends of the fixing and the connection frames are pivoted with each other via a pivot shaft. The utility model is characterized in that an elastic element is arranged between two frame bodies to maintain a proper clamping angle, and the fixing frame is also assembled with a positioning device; the clamping or release of a clamping piece in the frame body are controlled by a throw rod of the positioning device, and positioning can be achieved via the wrench of the throw rod under any clamping angles between the fixing frame and the connection frame for enhancing the comfortable use of chairs.

Description

Adjustable inclination chair base

The utility model relates to a kind of Base for chair of adjusting lying angle, particularly relates to a kind of seat and back cushion that is assembled on the base that makes and can be positioned on any lying angle, to promote the Base for chair of chair tool comfort.

At first, seeing also Fig. 1,2, is a kind of Base for chair assembled sectional view that in the past can adjust lying angle, and the solid of base assembling schematic diagram, and the base 1 of chair tool comprised in the past: a fixed frame 11 and a connection box 12; The two stands 111 of this fixed frame 11 is fixed on seat and back cushion 13 belows of chair tool, connects a horizontal central siphon 112 in 111 of two stands, extends one again and be the connecting plate 113 of being scheduled to the clamping angle with support 111 on the axis body of this central siphon 112; And that this connection box 12 has is two parallel and reliably be located at the side plate 121 of central siphon 112 both sides, the pivoted hole 122 of side plate 121 leading edges is corresponding with the axis hole (not shown) of central siphon 112, be pivoted mutually between the two and by means of a pivot 14,121 of biside plates is a plate face 123, at the formed protuberance 124 of plate face 123 other ends is fixing for the fulcrum 15 of foot rest: be able to swing for the seat and back cushion 13 that makes assembling again, base 1 plugged an adjusting lever 16 again on the connecting plate 113 of fixed frame 11 in the past, wear a spring 17 on the body of rod of this adjusting lever 16, its end is then assembled a knob 18.

When the user is sitting on the cushion 13 and backward when lying, after the strength of lying can make and set firmly fixed frame 11 under it also along with the back pendulum, and compression spring 17, and when spring 17 is accumulated power and is disengaged, the strength on its outer top promptly can be put on the pushing tow connecting plate 113, and feasible support that is connected 111 and seat and back cushion 13 homings, by means of layback, the forward swing of aforementioned seat and back cushion 13, reach the purpose of seat and back cushion 13 swings; If want to make seat and back cushion 13 can not swing, as long as a dowel 19 is horizontally through two side plates 121 of connection box 12, and the connecting plate 113 that makes fixed frame 11 is erected at this dowel 19 tops, just can avoid connecting plate 113 bottoms, keep 12 of fixed frame 11 and connection boxes whereby in certain angle.

During use, seat and back cushion 13 is except can constantly rocking back and forth, its another kind of occupation mode then is to borrow plugging of dowel 19, seat and back cushion 13 can't be swung, because dowel 19 is after plugging, the clamping fixed angle that fixed frame 11 and connection box are 12, therefore, the orientation angle of its generation is also fixing, can not seat and back cushion 13 is positioned on any suitable pendulum angle according to the individual in the use.

The purpose of this utility model is to provide a kind of seat and back cushion that makes the chair tool to can be positioned on the Base for chair of any lying angle.

Feature of the present utility model is: a flexible member is established in support between fixed frame that front end is pivoted mutually and connection box, make two frameworks keep certain clamping angle, on fixed frame, assemble a positioner again, the intermediate plate bottom of this positioner borrows an operating bar to be assembled on the fixed frame, the other end then borrows an inserted link to be pivoted mutually with connection box, operating bar can support the back of the body again or tiltedly support supporting of the back of the body because of the arc of a throw rod, and the clamping degree between the change intermediate plate, loose by between intermediate plate, clamping angle between fixed frame and connection box is changed because of external force, and establish by the folder between intermediate plate, can make clamping fixed angle between fixed frame and connection box, make the seat and back cushion that is assembled on the connection box when any angle of swing, all can pull this throw rod easily and the section of nothing location.

Base for chair of the present utility model comprises: fixed frame and connection box, a flexible member and a positioner of borrowing pivot to be articulated in the base front end; Wherein, this flexible member is located on the pivot, the section of supporting to arrive in of its extension and linkage section are also shored respectively between fixed frame and connection box, so that the two keeps certain clamping angle, on the sidewall of fixed frame, assemble the central siphon that a brace has axis hole again, operating bar that on the body of rod, plugs most intermediate plates of assembling in the axis hole, then press from both sides between intermediate plate in twos and establish a slice pad, at intermediate plate, on the operating bar body of rod of pad lateral border again spiral shell establish a nut, the blind end that operating bar protrudes in the axis hole is then assembled a spring with the outer top of operating bar, the openend mat bearing pin throw rod that is pivoted again outside central siphon protrudes in the fixed frame sidewall, form an arc on the head of throw rod position in axis hole and support the back of the body and the oblique back of the body that supports, wherein, tiltedly to carrying on the back to carrying on the back to the distance between bearing pin apart from supporting between bearing pin greater than arc; Borrow the combination of above-mentioned member, can when the connection box of assembling seat and back cushion be swung suitable angle,, make arc support the back of the body and be resisted against by the operating bar, be clamped condition to impel intermediate plate, and reach the purpose of not having section location seat and back cushion lying angle by pulling of throw rod.

Below by most preferred embodiment and accompanying drawing Base for chair of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the assembled sectional view of chair tool in the past.

Fig. 2 is the solid assembling schematic diagram of the base of chair tool in the past.

Fig. 3 is the three-dimensional exploded view of the preferable possible embodiments of the utility model.

Fig. 4 is the assembled sectional view of the preferable possible embodiments of the utility model.

Fig. 5 is the control schematic diagram of the positioner of the preferable possible embodiments of the utility model.

Fig. 6 is that the lying angle of the preferable possible embodiments of the utility model is adjusted schematic diagram.

At first, as Fig. 3,4, the Base for chair of the utility model embodiment comprises: fixed frame 3, connection box 4, tightness adjusting device 5, a flexible member 6 and a positioner 7: wherein:

Fixed frame 3, has opening room 31 up, room 31 rears 301 are provided with one for the fixing locating hole 32 of chair tool foot rest fulcrum, room 31 by centre form one directly to perforation 33, perforation 33 other then outstanding one directly to frame plate 34, set firmly a central siphon 35 on the frame plate 34 other corresponding side walls with blind end 353 and openend 354, as Fig. 5, the blind end 353 of central siphon has a through hole 355 and stretches in the fixed frame 3, and openend 354 stretches out outside the fixed frame 3, the axis hole 351 of central siphon 35 central authorities is axially corresponding with the hole clipping 341 on the frame plate 34, the sealing-in hole 352 of two correspondences is set on the tube wall of central siphon 35, and the position respectively forms the pivoted hole 36 of a correspondence on 302 two sides, framework the place ahead.

Connection box 4 lids are located at room 31 tops of fixed frame 3, the insert opening 41 of formation and pivoted hole 36 correspondences on the sidewall of

front end

402,41 of pivoted hole 36 and insert openings plug a pivot 45, two frame forward end 302,402 are articulated, the seat and back cushion of connection box 4 upper fixed chair tools, connection box 4 rear ends 401 outstanding projections 42 are to fix for the chair back of chair tool, and wear corresponding perforation 43 corresponding to fixed frame 3 central siphons 35 places, wear an inserted link 44 43 of perforations.

Tightness adjusting device 5 comprises an adjusting lever 51 that is plugged in fixed frame 3 perforation 33, adjusting lever 51 bottoms 501 form a knob 511, the other end forms the end of thread 512, the end of thread 512 protrude in the perforation 33 and in it bearing 52 of assembling and spiral shell establish a trimmer 53, by the adjustment of adjusting lever 51, order about trimmer 53 upper and lower displacements.

Flexible member 6 is the spiral sections 61 that bend out two correspondences on bar strip, spiral section 61 is located on the pivot 45, the outstanding respectively one section section of supporting to arrive in 62 that can support to arrive in of spiral section 61 last edge at connection box 4 framework inner faces, and form one section linkage section 63 that is erected on the trimmer 53 61 of two spiral sections.

Please cooperate Fig. 3,5, positioner 7 comprises an operating bar 71 that axially is assembled in fixed frame 3 central siphons 35, operating bar 71 1 ends are erected in the hole clipping 341 of frame plate 34 by the through hole 355 of central siphon 35, and establish a nut 711 near central siphon place spiral shell, nut 711 plugs the intermediate plate 72 of most months bendings to the body of rod of 353 of central siphon 35 blind ends, then each presss from both sides the pad 73 of establishing the manufacturing of a slice plastic cement to 72 of intermediate plates in twos, folder,

pad

72,73 are provided with chute 721 and through hole 722, the body of rod chute 721 of operating bar 71, inserted link 44 is plugged in the through hole 722 of intermediate plate 72 tops formation, inserted link 44 also is erected on the connection box 4, with the folder of fixed connecting frame 4 with fixed frame 3,

pad

72,73, the nut 76 that on the operating bar 71 that penetrates central siphon 35 openends 354, is spirally connected, central siphon 35 blind ends 353 and nut spring 74 of 76 assemblings and a slice pad 75; Be positioned at throw rod 77 of assembling on the openend 354 of central siphon 35, throw rod 77 protrudes into and forms a pivoted hole 772 on the head 771 of axis hole 351,352 of the butt holes of this pivoted hole 772 and central siphon 35 plug a backing pin shaft 78, head 771 leading edges of throw rod 77 form an arc again and support 773 and one of the back ofs the body and tiltedly support the back of the body 774, arc support the back of the body 773 to the distance of 78 of bearing pins less than this bearing pin 78 to the distance of tiltedly supporting 774 of the back ofs the body.

When present embodiment in when assembling, as Fig. 4,5, the adjusting lever 51 of tightness adjusting device 5 is located in the perforation 33 of fixed frame 3, assemble bearing 52 and trimmer 53 on the end of thread 512 again, then most intermediate plates 72 are located on the operating bar 71 with pad 73 compartment of terrains, spiral shell is established this nut 711 on operating bar 71 again, operating bar 71 1 ends are erected on the frame plate 34, the other end then penetrates the axis hole 351 and the sheathed spring 74 of central siphon 35, the pad 75 and the nut 76 that is spirally connected, and throw rod 77 borrows bearing pin 78 to be fixed on the openend of central siphon 35, borrow pivot 45 in conjunction with fixed frame 3, connection box 4 and flexible member 6, just the connection box 4 and the front end of fixed frame 3 can be fixed, the section of supporting to arrive in 62 of fixing back flexible member 6 supports to arrive in below connection box 4, and its linkage section 63 then is erected at the top of trimmer 53.

Under Fig. 4,5 state, be subjected to shoring of flexible member 6, the fixed frame 3 that front end borrows pivot 45 to be pivoted mutually can be kept certain clamping angle with connection box 4, be subjected to shoring of throw rod 77 and spring 74 on the other hand, intermediate plate 72 can be folded between nut 711 and central siphon 35 outer walls, intermediate plate 72 can't slippage on operating bar 71, the folder of intermediate plate 72 is established whereby, can make the clamping fixed angle of 4 of fixed frame 3 and connection boxes, just under this state, the lying angle that is fixed on the seat and back cushion on the connection box 4 is positioning states.

As Fig. 5,6, when present embodiment wants to make seat and back cushion to rock back and forth, as long as upwards pull throw rod 77, make on the body of rod to push against in the end of operating bar 71 from pivoted hole 772 back ofs the body 774 that tiltedly support far away, so operating bar 71 can be to intrinsic displacement, to add big nut 711 to the width between central siphon 35 tube walls, at this moment, because the increasing in space, intermediate plate 72 is no longer clamped, the strength of user's layback just can overcome the elastic force layback of flexible member 6, to produce the start of back pendulum; When flexible member 6 was accumulated power and disengaged, fixed frame 3 can be reset to again. and the state of Fig. 4 makes seat and back cushion produce the start that rocks back and forth whereby; Desire to make

connection box

4 and 3 of fixed frames when present embodiment and keep certain clamping angle,, just can borrow arc to support the corresponding of the back of the body 773 and operating bar 71 as long as press down throw rod 77, and the shoring of spring 74, and make intermediate plate 72 clamp once again, keep the height of connection box 3; And when present embodiment is adjusted, because the arc of throw rod 77 is arc modeling to the back of the body 773, so it is comparatively laborsaving on adjusting, to make things convenient for the swing of throw rod 77.

The connection box 4 of present embodiment is when swinging, if its swing tightness is incorrect, as long as rotation protrudes in the knob 511 outside the fixed frame 3, to force trimmer 53 upper and lower displacements, just can adjust linkage section 63 height of flexible member 6, to change the tightness of flexible member 6; Also can be assembled in the rear 401 of connection box 4 as for positioner 7, when present backrest is adjusted angle separately, can borrow the location of this positioner 7, and backrest is maintained on certain lying angle.

By above explanation as can be known, the utility model borrows a pivot 45 that the front end of fixed frame 3 with connection box 4 is pivoted, a flexible member 6 is established in support between two frameworks, a positioner 7 is set on fixed frame 3 again, borrow positioner 7 throw rods 77 formed arcs to support the back of the body 773 or tiltedly support supporting of the back of the body 774, change the clamping degree that two ends are assembled in the intermediate plate 72 on fixed frame 3 and the connection box 4 respectively; The improvement of above-mentioned structure not only can make the seat and back cushion that is fixed on the base rock back and forth, and in the time of more can needing connection box 4 to swing to any angle according to the user, by pulling throw rod 77, and be positioned on any angle.

Claims

1, a kind of Base for chair of adjusting lying angle, comprise a fixed frame and a connection box, the both by at least one dull and stereotyped and two and microscler side plates that be parallel to each other vertical with flat board formed, be provided with two corresponding pivoted holes on the sidewall of fixed frame and connection box side plate individually, and be hubbed on the pivoted hole of fixed frame and connection box with a pivot, it is characterized in that:

Set pivoted hole is positioned at the fixed frame front end on the sidewall of fixed frame side plate, the foot rest fulcrum of fixed frame rear end and chair tool fixes, and a central siphon is set on the side plate of fixed frame, central siphon has an openend that is positioned at the fixed frame outside, and a blind end that stretches in the side plate, the central siphon blind end has a through hole;

Set pivoted hole also is to be positioned at the connection box front end on the connection box side plate, the upper and lower setting of connection box and fixed frame, and be hubbed at pivot on the pivoted hole of connection box and fixed frame front end, and the seat and back cushion of the flat board of connection box and a chair tool is fixed, the perforation of two correspondences is set on the connection box side plate, between perforation, wears an inserted link;

Flexible member with two corresponding spiral section bar strips is located on the pivot axis body in fixed frame and the connection box, in the outstanding respectively section of supporting to arrive in of spiral section end edge, the linkage section between section of supporting to arrive on the flexible member and two spiral sections flexibly supports to arrive in respectively on fixed frame and connection box;

By operating bar, intermediate plate, pad, spring and throw rod are formed a positioner, operating bar is located in the fixed frame central siphon, and an end protrudes in the fixed frame side plate by the through hole of central siphon Feng Biduan, the other end then protrudes in fixed outer frame, operating bar protrudes into the interior end spiral shell of fixed frame side plate and establishes a nut, establish intermediate plate and the pad that is provided with at interval to folder between central siphon Feng Biduan in nut, intermediate plate and pad bottom have arc chute and have through hole on the top, pass arc chute as actuating strut, and the inserted link of connection box is plugged in the through hole, at close central siphon openend, spiral shell is established a nut on the operating bar in the central siphon, in the middle of nut and intermediate plate, put one and support the blind end of central siphon and the spring of nut, be positioned at the central siphon openend and articulate a throw rod with a bearing pin, the head that throw rod one distal process stretches into axis hole is provided with an arc to carrying on the back and the oblique back of the body that supports, and is oblique different with the distance that this bearing pin extremely tiltedly supports between carrying on the back to carrying on the back to the distance between bearing pin.

2, according to the described Base for chair of adjusting lying angle of claim 1, it is characterized in that:

The arc of throw rod supports to be carried on the back to the distance between bearing pin less than bearing pin to the distance of tiltedly supporting between the back of the body.

3, according to the described Base for chair of adjusting lying angle of claim 1, it is characterized in that:

Fixed frame is provided with a perforation corresponding to flexible member linkage section place, go up tightness adjusting device of assembling in this perforation, the tightness adjusting device comprises an adjusting lever that is inserted in the fixed frame perforation, and an end that stretches out fixed frame forms a knob, the position is an end of thread in fixed frame, a sheathed bearing and spiral shell are established a trimmer on the end of thread, and the linkage section of flexible member is resisted against the trimmer top.