CN2560262Y

CN2560262Y - Chair with linking back and foot reset

Info

Publication number: CN2560262Y
Application number: CN 02240920
Authority: CN
Inventors: 曾春荣
Original assignee: XINYANG HARDWARE PLASTIC PRODU
Current assignee: XINYANG HARDWARE PLASTIC PRODU
Priority date: 2002-06-25
Filing date: 2002-06-25
Publication date: 2003-07-16
Anticipated expiration: 2012-06-25

Abstract

The utility model relates to a chair that is provided with an interlocking chair-back and a footrest, which comprises a base, a front footrest unit and a back footrest unit that are assembled on the base, a chair-back unit, a manipulation mechanism that can control the displacement of the foot rest units and a swing frame that is jointly connected between the footrest units and the chair-back unit, wherein, the manipulation mechanism is provided with a shaft lever that is articulated between two fixed levers, a tommy bar that can jointly rotate the shaft lever and two manipulation components, wherein, the two manipulation components are arranged at the both ends of the shaft lever, and both are provided with a first control lever and a second control lever, wherein, the first control lever is provided with a consolidation end and an articulation end which are opposite, wherein, the consolidation end is vertically consolidated on the shaft lever, the articulation end is articulated with the second control lever, and the other end of the second control lever is used for jointly displacing the footrest units. When the articulation end is positioned at the rear upside of the shaft lever, the footrest units and the chair-back unit can not be displaced under the pressure of the sitter; by means of rolling the tommy bar to drive the manipulation components via the shaft lever, the articulation end is swung and displaced below the height of the shaft lever, the footrest units and the chair-back unit can be displaced under the pressure of the sitter.

Description

Has the chair tool that the linkage type chair back and pin lean on

(1) technical field

The utility model relates to a kind of chair tool, particularly relates to a kind of chair tool that the linkage type chair back and pin lean on that has.

(2) background technology

General chair tool for the human body seating, often the difference with function has dissimilar designs, for example have to meet design that ergonomics is the requirement emphasis, to have with light and handy easy for the design that requires, more the design of attaching most importance to for the angle angle of human body seating between the base and the chair back adjusting arranged, in addition, some more luxurious chair tool design also has simultaneously and can lean on the pin of chair back interlock adjustment.

Chair tool design as shown in Figure 1, but be to belong to the chair tool type that the chair back with interlock adjustment and pin lean on, this chair has a base 11, that is coated with flexible foamed material and cortex in appearance is assembled in these base 11 rearward end and the chair back 12, that up extends is assembled in these base 11 front end places pin by 13, and a side edge that is installed in this base 11 is used for the Synchronization Control chair back 12 and the tommy bar 14 of pin by 13 displacements.

Usually, the chair back 12 of this type of chair tool leans on 13 situations that controlled by tommy bar 14 with pin, roughly be can be, whole chair tool optionally used just like the normal seating state shown in Fig. 1 by switching tommy bar 14 in a predetermined angular range, and one as shown in Figure 2 face upward the state of lying.The chair back 12 is to be in than plumbness when at this seating state, and its pin is by 13 being that upright closing is located below these base 11 fronts, and seating person's both feet normally place on the ground toward sagging under this state.When under this faces upward the state of lying, the chair back 12 is controlledly to be the hypsokinesis shape toward back lower place pivot pendulum, its simultaneously pin are pivot pendulum up and forward by 13, place place, base 11 the place aheads and stretch, so seating person's both feet can put down forward to stretch and be placed on pin and be leaned on 13.

Chair tool was in design in the past for this, though can select different seating states by this tommy bar 14 of operation, but be to use and have it and be inconvenient to locate, its reason is: no matter the chair tool will be by normal seating state transformation to facing upward the state of lying, or by facing upward the state transformation of lying to normal seating state, all will be with this tommy bar 14 1 of hand switching wide-angle very, this tommy bar 14 is to be positioned at base 11 sides just to locate on the lower side during operation, cause sitting the seating person who is butted on the base 11 when operating, hand down must be extended and, brings inconvenience with this tommy bar 14 of wide-angle switching.

(3) utility model content

The purpose of this utility model is to provide a kind of weight that cooperates human body to face upward to lie or stand up to come the interlock chair back and pin to lean on, and makes the more convenient chair tool of operation.

The utlity model has the chair tool that the linkage type chair back and pin lean on, but the pin that include a base, one in front and one in back is assembled on the base leans on the operating-controlling mechanism of element displacement by unit and chair back unit, a control pin, and one can be linked in pin linkedly by the frame that swings between unit and chair back unit; This base have two between left and right every the upstanding side framework, and the fixed bar in the nearly centre position of medial surface of this two body side frame is extended and be separately fixed in two front and back; This pin is to be assembled between the leading section of this two fixed bar by the unit; This chair back unit is to be assembled between the rear end of this two fixed bar with up extending; This swings frame is can be installed in pin linkedly by between unit and chair back unit, and is positioned at this two fixed bars top, can be with respect to the displacement between a front position and position, a back of this two fixed bar; Be characterized in: this operating-controlling mechanism includes tommy bar and two that the axostylus axostyle, that is installed between this two fixed bar is used for rotating this axostylus axostyle and is used for the manipulation component of interlock pin by the unit; This two manipulation component is to be assembled in respectively between the both ends of this pin by unit and this axostylus axostyle, each manipulation component has one first control bar and one second control bar, this first control bar has opposite a fixed end and a hub side, this fixed end vertically is cemented on this axostylus axostyle, this hub side is and an end of this second control bar pivot dress mutually, the other end of this second control bar is to be installed in this pin by the unit, and the hub side of this first control bar is to be subjected to this axostylus axostyle interlock, and swings displacement between between this axostylus axostyle back upper place and front lower place.When the hub side of this first control bar is positioned at this axostylus axostyle back upper place, this pin can't be compressed displacement by seating person by unit and chair back unit, when this tommy bar of switching through hub side that this axostylus axostyle drives this first control bar swing to be lower than this below axostylus axostyle height after, this pin just can be compressed displacement by seating person by unit and this chair back unit.

For further specifying the purpose of this utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 is a kind of stereogram with chair tool that the linkage type chair back and pin lean in the past, and this chair tool is adjusted at a normal seating state.

Fig. 2 be this in the past the chair tool be adjusted at a stereogram of facing upward the state of lying.

Fig. 3 is the schematic perspective view of a preferred embodiment of the utility model chair tool.

Fig. 4 is the lateral plan of this embodiment, and illustrating one, to swing frame be to be positioned at a front position.

Fig. 5 one is similar to the view of Fig. 4, and this is shown, and to swing frame be to be positioned at position, a back.

Fig. 6 one is similar to the view of Fig. 4, an operating-controlling mechanism is shown is operated to the state of going out of lock.

(5) specific embodiment

As shown in Figures 3 and 4, a preferred embodiment of the utility model chair tool includes: a base 2, a pin that is assembled in this base 2 forward and backward sides respectively can be controlled this pin by a unit 3 and a chair back unit 4, and be used for this pin of interlock by the operating-controlling mechanism 5 and of unit 3 displacements and swing frame 6 by unit 3 and chair back unit 4.For convenience of description, all not shown flexible foamed material and the cortex that is coated on appearance in each accompanying drawing of present embodiment.

This base 2 have two between left and right every rectangular upstanding side framework 21, and the fixed bar 22 in this nearly centre position of two body side frames, 21 medial surfaces is extended and be separately fixed in two front and back.

This pin has the front rod mechanism 31 that two symmetries are assembled in the leading section of this two fixed bar 22 by unit 3, and a pin backup plate 32 that is assembled between the end of this two front rods mechanism 31.Each front rod mechanism 31 by many connecting rods 311 with predetermined form articulate mutually formed, and can drive and fold or launch by described operating-controlling mechanism 5, the pivot assembling structure of this front rod 311 and the operation situation that can fold, launch, owing to be commonly used in chair tool design in the past, do not describe in detail at this, situation as for pin is driven by operating-controlling mechanism 5 by unit 3 will explain in hereinafter knowing clearly.

This operating-controlling mechanism 5 includes the tommy bar 52 that an axostylus axostyle 51, that is arranged in 22 of this two fixed bars is used for rotating this axostylus axostyle 51, and two are used for the interlock pin by the manipulation component 53 of unit 3.

This axostylus axostyle 51 is the square cross section, its two ends be respectively pivot be through at this two fixed bar 22 a centre position a pivot ear 221 of projection down, and an end of axostylus axostyle 51 is to stretch out 221 1 sections suitable lengths of the corresponding pivot ear of institute outward.

This tommy bar 52 is in a predetermined angular range, but consubstantiality rotatably vertical fixing be linked in the end that this axostylus axostyle 51 stretches out described pivot ear 221, be used for pulling, with 51 rotations of interlock axostylus axostyle for seating person operation.

This two manipulation component 53 is to be assembled in respectively between the both ends of this two front rods mechanism 31 and this axostylus axostyle 51, and each manipulation component 53 has one first control bar 54, one second a control bar 55 and an extension spring 56.This first control bar 54 has opposite a fixed end 541 and a hub side 542, and this fixed end 541 is and the vertically fixed one of this axostylus axostyle 51, this hub side 542 be extend backward and with an end of this second control bar 55 mutually pivot adorn.This second control bar 55 is slightly to be arc bending shape, and its other end is to be articulated in described pin forward wherein to be positioned on the connecting rod 311 at rear by the corresponding front rod of the homonymy of unit 3 mechanism 31, is used for the interlock pin by unit 3 displacements.This spring 56 be pull and support in this second control bar 55 with between the centre position of corresponding fixed bar 22, so that the assist location power of manipulation component 53 to be provided, make first of manipulation component 53, the

second control bar

54,55 pulled by tommy bar 52 when swing is to different angles, except by being pivoted with front rod mechanism 31, and beyond the locating effect via aforementioned rocking carrier 6 and the chair back unit 4 connection interlocks that provide, more can provide up the elasticity that pulls and supports by this spring 56, and obtain assist location power, make switching tommy bar 52 control first, the second control bar 54, can be too not loose during 55 swings.

This chair back unit 4 has the back link mechanism 41 of top between the rearward end that two symmetries are assembled in this two fixed bar 22, and one is fixed between the terminal part of this two back links mechanism 41 and the chair back plate 42 that up extends.Each back link mechanism 41 articulates institute by many connecting rods 411 mutually with predetermined form and is formed, is put and can swing frame 6 interlock pivots, and detail structure and operation situations that this back link 411 articulates mutually have been the generally use of this type of chair tool, do not describe in detail at this.

This swings frame 6 is to be rectangular frame shaped, be installed in pin by unit 3 and chair back unit 4 should before,

back link mechanism

31,41, and parallel this two fixed bars, 22 tops that are positioned at, this swings frame 6 is to be used for supporting human body to sit on it, to swing frame 6 be near its four corner to integral body in the design, before being installed in this respectively,

back link mechanism

31,41 predetermined tie bar 311,411, and connect mutually by unit 3 and chair back unit 4 with pin simultaneously, and can be by the interlock of pin by unit 3 or chair back unit 4 driving force that provides, and with respect to this two fixed bar 22 in as shown in Figure 4 a front position, and displacement between as shown in Figure 5 a back position.When this swings frame 6 by as shown in Figure 5 back position of front position migration shown in Figure 4, this pin is launched forward and up by original collapse state by this two front rods mechanism 31 of unit 3, borrow its terminal part by this below that swings frame 3, drive this pin backup plate 32 and be moved to last the place ahead that this swings frame 6.In addition, described swing frame 6 by this position, back of this front position migration in, the terminal part of this two back links mechanism 41 of this chair back unit 4, be this chair back plate of interlock 42 toward back lower place pivots pendulum, and become the state of more past rear-inclined.

The following describes the operational scenario of this operating-controlling mechanism 5, when pulling tommy bar 52 and in this predetermined angular range, rotate, can swing frame 6 displacement between forward and backward position and drive this via the interlock of pin by unit 3.Swing frame 6 when being positioned at this front position when driving this, 542 present positions, hub side of this first control bar 31 are as shown in Figure 4, are positioned at the back upper place of this fixed end 541, just are positioned at the back upper place of this axostylus axostyle 51.Swing frame 6 when moving to this position, back when driving this by this front position, the hub side 542 of this first control bar 31 is down and forward to swing to the inferoanterior of this axostylus axostyle 51, and support moving this pin forward by the also past top offset in unit 3, so just, can make chair back unit 4 toward the displacement of back lower place pivot pendulum via the interlock that swings frame 6.

What this must do an explanation be, among described Fig. 4, this first control bar 54 is positioned under the state of these axostylus axostyle 51 back upper places in its hub side 542, owing to be subject to hunting range, its hub side 542 can only be by position shown in the figure toward the inferoanterior swing, and can't up swing, therefore if chair back unit 4 bears the strength toward back lower place displacement, or pin bears the strength of top displacement forward by unit 3, it finally will transmit the component that generation up pushes hub side 542, therefore can't be to swinging frame 6, pin produces the effect of displacement by unit 3 and chair back unit 4, this design as this operating-controlling mechanism 5 possesses a locking effect, just as long as this tommy bar 52 of operation makes the hub side 542 of the first control bar 54 put to axostylus axostyle 51 tops toward the back upper place pivots, just can make to be applied to chair back unit 4 or pin by the strength on the unit 3, can not produce any displacement effect, this effect reaction is in actual user mode, and for example seating person down lies with its back and presses chair back unit 4, and chair back unit 4 can't be stressed and toward the hypsokinesis pendulum.

And if desire to make chair back unit 4 toward layback lie and pin by unit 3 the place ahead pivot pendulum up, design of the present utility model can realize via two kinds of modes of operation, wherein a kind of mode of operation is directly with wide-angle switching tommy bar 52, drive pin by unit 3 and chair back unit 4 the place ahead pivot pendulum and lie up respectively toward layback, another mode of operation is as shown in Figure 6, as long as this tommy bar 52 of low-angle ground switching, the hub side 542 that makes the first control bar 54 is by position shown in Figure 4, toward the bottom to as shown in Figure 6 the height a little less than behind the axostylus axostyle 51, this moment, no matter chair back unit 4 bore the weight of lying behind the seating person, or pin bears the strength that seating person foot down compresses by unit 3, it finally will transmit and produce the component that pushes hub side 542 toward inferoanterior, therefore can make smoothly and swing frame 6, pin produces displacement by unit 3 and chair back unit 4, just as long as low-angle is pulled this tommy bar 52, hub side 542 height that make the first control bar 54 are a little less than axostylus axostyle 51, just can be applied to chair back unit 4 by facing upward of the seating person back weight of lying, make chair back unit 4 by state shown in Figure 6, pivot is put state shown in Figure 5 extremely as described backward, and this state seating person's both feet can be put down forward and be stretched and stride to be placed on and be moved to the pin that swings frame 6 the place aheads by on the unit 3.

In addition, when seating person desires to be stood up by the state of lying of facing upward shown in Figure 6, the design of present embodiment, can be by the variation of position of human center, and make automatically pin lean on unit 3 down pivot pendulum fold, and make chair back unit 4 automatically forward pivot pendulum reset, this effect that automatically resets, be because seating person in the action of standing up, the back can move apart chair back unit 4 forward, and both feet can down cover pin by unit 3, and pin by unit 3 when being subjected to covering power, except meeting down pivot pendulum resets, also can be via the interlock transmission that swings frame 6, and make simultaneously chair back unit 4 automatically forward pivot pendulum reset, therefore very convenient seating person stands up.

As for whole chair tool when facing upward the state of lying and be reset to normal seating state, the position that its pin resets by unit 3, chair back unit 4 and operating-controlling mechanism 5, be to decide on the stroke size that seating person's both feet down push, usually both feet are taken advantage of a situation down presser feet when leaning on unit 3, pin roughly can reset by unit 3 and chair back unit 4 and put state as shown in Figure 6, and this operating-controlling mechanism 5 is not in described lock-out state as yet under this state.Certainly seating person also can painstakingly push pin by unit 3 with both feet more backward, or can reach the effect that makes operating-controlling mechanism 5 be in lock-out state by switching tommy bar 52.

Therefore if seating person is when using next time, can be if want by the weight of lying of facing upward of health, when obtaining the effect of layback automatically, only otherwise the lock-out state that painstakingly operating-controlling mechanism 5 is positioned as shown in Figure 4 just can.

Conclude above-mentioned, the utlity model has the chair tool that the linkage type chair back and pin lean on, really can be by its operating-controlling mechanism 5 and pin special junction design by 3 of unit, and energy proper handling operating-controlling mechanism 5, make it under particular state, can cooperate human body to face upward the weight of lying or standing up comes interlock chair back unit 4 and pin to lean on unit 3, and can freely control chair back plate 42 and the corresponding angle of pin backup plate 32 with respect to base 2, when fixedly chair back plate 42 is the orientation angle of approximate vertical with respect to 2 of bases, make hub side 542 be moved to axostylus axostyle 51 back upper places as long as pull tommy bar 52, just can be with angle orientation, and make seating person's operation more convenient.

Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.

Claims

1. one kind has the chair tool that the linkage type chair back and pin lean on, and includes:

One base, have two between left and right every the upstanding side framework, and the fixed bar in the nearly centre position of medial surface of this two body side frame is extended and be separately fixed in two front and back;

One pin is assembled between the leading section of this two fixed bar by the unit;

One chair back unit up is assembled between the rear end of this two fixed bar with extending;

One swings frame, can be installed in pin linkedly by between unit and chair back unit, and can parallelly movably forward and backward be positioned at this two fixed bars top; And

One operating-controlling mechanism;

It is characterized in that this operating-controlling mechanism includes:

One axostylus axostyle is installed between the centre position of this two fixed bar;

One tommy bar that supplies operation to pull, but this axostylus axostyle of interlock is fixed on an end of this axostylus axostyle rotatably; And

Two manipulation component, be assembled in respectively between the both ends of this pin by unit and this axostylus axostyle, each manipulation component has one first control bar and one second control bar, this first control bar has opposite a fixed end and a hub side, this fixed end vertically is cemented on this axostylus axostyle, this hub side is and an end of this second control bar pivot dress mutually, the other end of this second control bar is to be installed in this pin by the unit, and the hub side of this first control bar is to be subjected to this axostylus axostyle interlock, and swings displacement between between this axostylus axostyle back upper place and front lower place.

2, have the chair tool that the linkage type chair back and pin lean on according to claim 1, it is characterized in that:

This pin has the two front rod mechanisms that are assembled in respectively symmetrically between the leading section of this two fixed bar by the unit, and a pin backup plate that is assembled between the end of this two front rods mechanism;

This chair back unit has the two back link mechanisms that are assembled in respectively symmetrically between the rear end of this two fixed bar, and one is fixed between the terminal part of this two back links mechanism and the chair back plate that up extends;

This swings frame is can be installed in pin linkedly to lean on this front and rear connecting rods of unit and chair back unit inter-agency;

The other end of the second control bar of this manipulation component of this operating-controlling mechanism end is articulated in this pin this two front rods mechanism by the unit respectively.

3, have the chair tool that the linkage type chair back and pin lean on according to claim 1, it is characterized in that: each manipulation component also has a spring that is used to provide detent force, this spring be pull and support in this second control bar with between the centre position of corresponding fixed bar.