CN102395296A - Seating furniture having movable backrest - Google Patents
Seating furniture having movable backrest Download PDFInfo
- Publication number
- CN102395296A CN102395296A CN2010800171486A CN201080017148A CN102395296A CN 102395296 A CN102395296 A CN 102395296A CN 2010800171486 A CN2010800171486 A CN 2010800171486A CN 201080017148 A CN201080017148 A CN 201080017148A CN 102395296 A CN102395296 A CN 102395296A
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- China
- Prior art keywords
- frame
- backrest
- sit
- upper frame
- thing
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
The present invention relates to seating furniture, and more specifically, to seating furniture having a movable backrest, which allows a user's back to be supported by a backrest at all times in order to enable seating with proper posture, and comprises: a lower frame which is connected to a support; an upper frame which is connected to the lower frame via a vertical displacement generation means; at least one elastic body which is installed between the lower frame and upper frame; a back and forth moving means which is formed at the edge of the left and right sides of the upper frame, and is connected to a backrest frame to move back and forth; a power generation unit which converts the displacement according to the descent of the upper frame into a straight line movement at the back and forth moving means if a load is applied to a seat unit combined to the upper frame, thereby moving the backrest frame forward; and a switching unit which switches to a half-lock state in which the backrest frame can move forward only if a load is applied to the seat unit, and to an unlock state in which the backrest frame can move backward if the load applied to the seat unit is removed.
Description
Technical field
To the present invention relates to a kind of thing to sit on, to relate in particular to a kind ofly in order sitting down with correct posture, the backrest of thing to sit on can support the technology of user's back portion all the time.
Background technology
Occupy considerable part owing to be sitting in the time of living on the things to sit on such as chair or sofa, thereby increase trend appears in the people of suffer owing to wrong sitting posture.The reason of this problem is people when being sitting on the thing to sit on, and waist and buttocks are not close on the backrest, and bends over to be sitting on the thing to sit on and take place.
About this this problem, disclosed repeatedly once that backrest can move and the chair that supports back portion, relatively be typically the technology of the korean that proposes by inventor 10-2007-0060533 number.
Said technology is when the people is sitting in the seat portion; Owing to this load produces driving force; Thereby backrest moves forward and makes backrest be close to back portion; Long for the height that the above-below direction of realizing the structure that this action is required occupies, have restriction thereby will on various chair, be suitable for, and also there is restriction in the outward appearance that will improve chair.And structural stability also reduces, and on durability, might become problem, therefore is necessary to improve.
Summary of the invention
Therefore, it is a kind of more compact that the present invention provides, more stable on the structure, and applicable to the thing to sit on movably of the backrest on various thing to sit on.
Be the said purpose that realizes disclosing, the present invention proposes movably thing to sit on of a kind of backrest, it is characterized in that, comprising: be connected the lower section frame on the supporter; Producing part with displacement up and down is media, the upper frame that is connected with said lower section frame; Be located at the more than one elastic component between said lower section frame and the upper frame; Be located at the left and right sides edge of upper frame, and be connected with back frame, thus can be towards front and back to the part that moves forward and backward that moves; When applying when load in the seat portion that is combined in upper frame, because the displacement that said upper frame descends and takes place, change rectilinear motion on the part into moving forward and backward, and the power generating part that said back frame is moved forward; When applying load in seat portion, become half lock (half-lock) state that back frame can only move towards the place ahead, when the load that is applied to seat portion disappears, become release (unlock) the state of switch portion that back frame can move towards the rear.
The preferred movably thing to sit on of a kind of backrest that proposes is characterized in that said displacement up and down produces part, carries out straight-line a plurality of vertical slide or a plurality of carrier bars that can be hinged by connecting said lower section frame and upper frame and constitutes.
The preferred movably thing to sit on of a kind of backrest that proposes is characterized in that said power generating part comprises: the vertical tooth rack that vertical direction is provided with on lower section frame; Be combined in the gear-box of upper frame; Combine with first that is located at said gear-box downside, thus with said vertical tooth rack pinion in mesh; Adjacent with said pinion, and be combined in said first vertical bevel gear; Be provided with in said gear-box inner horizontal direction, and at it below in conjunction with the horizontal bevel gear that is connected with said vertical bevel gear, and the spur gear that is rotated; Be combined in the backrest lower side, and be meshed with said spur gear and towards the horizontal rack of back frame transferring power.
The preferred movably thing to sit on of a kind of backrest that proposes is characterized in that, said power generating part possesses the retainer that is connected with arresting lever and optionally combines or remove with spur gear in a side of spur gear.
The preferred movably thing to sit on of a kind of backrest that proposes is characterized in that said switch portion comprises: change rotation direction in order to have or not according to the load of seat portion, the rotation door bolt that fore-and-aft direction combines in the inside of said upper frame; Be attached at back frame below, can in the angular range that limits, be rotated action, the hook that said rotation door bolt is optionally combined or separates.
The preferred movably thing to sit on of a kind of backrest that proposes; It is characterized in that; Said backrest is thing to sit on movably; Seat portion can be that fixed part moves up and down with the rearward end of upper frame, below the front ends of said seat portion, is provided with the push rod that the leading section with said rotation door bolt is connected, and rotates door bolt and rotates thereby can make according to said seat portion mobile.
The preferred movably thing to sit on of a kind of backrest that proposes is characterized in that said push rod comprises the top push rod below seat portion; Its upper end is injected and can be moved through the downside of top push rod, the bottom push rod that its bottom combines with said rotation door bolt; Be located at the coil spring between said top push rod and the bottom push rod.
The preferred movably thing to sit on of a kind of backrest that proposes; It is characterized in that said switch portion possesses the door bolt guide that is provided with rotating the slit of fore-and-aft direction perforation between door bolt and the hook; And standoff distance is provided with two outstanding spacer pins on said hook; Said hook connects said slit and is provided with, and forms contained state through two spacer pins, and limits the rotational angle of said hook.
More preferably propose movably thing to sit on of a kind of backrest, it is characterized in that, said switch portion possesses and pushes the front ends of rotating door bolt and regulate and rotate door bolt and be the relieving rod of released state.
According to backrest of the present invention thing to sit on movably; Basically has the reach and support user's back portion and help to keep the effect of correct posture automatically of backrest when sitting down; Thereby also have simultaneously since more compact structure but also be adapted at the student goes up use with chair etc. with various chairs such as classroom chair or sofa, train or aircraft effect not only at office chair.
Description of drawings
Fig. 1 is the part oblique view according to the summary of the thing to sit on of first embodiment of the invention.
Fig. 2 is the phantom of seeing from the front.
Fig. 3 is the cutaway view of seeing from the side.
Fig. 4 is a plane.
Fig. 5 is the part oblique view that the part-structure key element that comprises lower section frame is shown.
Fig. 6 illustrates the cutaway view that moves forward and backward part that is used for present embodiment.
Fig. 7 is the part oblique view that the major part of power generating part is shown.
Fig. 8 is the oblique view of major part that the bonding state of switch portion is shown.
Fig. 9 is the cutaway view according to the summary of the chair of second embodiment.
Figure 10 is the side view that the summary of chain plate structure is shown.
Among the figure:
10: seat portion, 20: backrest, 30: supporter, 100: lower section frame, 200: upper frame, 300: displacement produces part, 300a: carrier bar up and down; 310: plate unit, 320: connect carriage, 400: elastic component, 500: move forward and backward part, 510: fixed track, 520: mid-rail, 530: the operation rail; 540: ball, 531: carriage, 600: back frame, 700: power generating part, 710: vertical tooth rack, 720: gear-box; 730: pinion, 740: vertical bevel gear, 750: horizontal bevel gear, 760: spur gear, 770: horizontal rack, 780: guide roller; 790: retainer, 800: switch portion, 810: rotate door bolt, 820: hook, 821: spacer pin, 830: push rod; 831: top push rod, 832: bottom push rod, 833: coil spring, 840: door bolt guide, 841: slit, 850: relieving rod
The specific embodiment
Below, specify according to backrest of the present invention thing to sit on (below, be called thing to sit on) movably through specific embodiment, and with reference to for helping to understand the relevant drawings of the preferred embodiment that present technique provides.But, the example that the accompanying drawing of announcement is implemented nothing but technological thought according to the present invention, other people carry out the enforcement of simple design alteration or the same enforcement that substitutes that is equal to key element of part-structure key element, are interpreted as being included in the technical scope of the present invention.
< first embodiment >
Thing to sit on according to first embodiment at first is described, Fig. 1 is the part oblique view that illustrates its summary.
The situation that on common office chair, is suitable for technology of the present invention has been shown in first embodiment.And,
Fig. 2 is the cutaway view of seeing from the front, and Fig. 3 is the cutaway view of seeing from the side, and Fig. 4 then is equivalent to plane.
As be sitting in the 10 last times of seat portion that constitute chair as the user; Backrest 20 reach and support the scheme at user's back position automatically comprises substantially: lower section frame 100, upper frame 200, displacement produces part 300, elastic component 400, moves forward and backward part 500, back frame 600, power generating part 700, switch portion 800 up and down.
Said lower section frame 100 is the parts that are fixedly connected on the supporter 30, mainly refers to comprise the lower side of the shank of chair at this so-called supporter 30.Said supporter 30 is according to the kind of thing to sit on, and its shape or function are different, if during the office chair of present embodiment, having of height that can adjustable support body portion itself is a lot.Promptly, consider user's height, the length of adjustable support body portion as required thisly belongs to technique known about the low technology of adjustable support height.
Fig. 5 is the part oblique view that the part-structure key element that comprises lower section frame is shown.As shown in the figure, in the connection of the upper end of supporter 30 lower section frame 100 is set, and displacement generation part 300 up and down is set in the left and right side of lower section frame 100.And producing part 300 with said displacement up and down is the upside that media upper frame 200 is positioned at lower section frame 100.It is that upper frame 200 can carry out vertically moving with respect to fixing lower section frame 200 that the displacement up and down of present embodiment produces part 300, uses a plurality of balls to roll and realize straight-line along track.So long as can linear slide, can use like LM guide rail etc.The displacement of using in the present embodiment up and down produces part and is called upper and lower slide rail.It has with after state move forward and backward the identical structure of part.
Between said lower section frame 100 and upper frame 200, be provided with the more than one elastic component 400 that bounce can be provided, and preferably use coil spring.Promptly, said elastic component 400 is sitting in 10 last times of seat portion as the people, upper frame 200 descends and elastic component 400 condensations and store bounce, and disappears when load, elastic component 400 promotes upper frame 200 with regard to recovery.
When in seat portion 10, applying when load, back frame 600 will rectilinear motion and move forward, and for the rectilinear motion of said back frame 600, and possesses the part of moving forward and backward 500.The said part 500 that moves forward and backward has in fore-and-aft direction setting of the left and right sides inside edge of upper frame 200 and the structure that is connected with said back frame 600.As the said part 500 that moves forward and backward, so long as can be straight-line all can, used as stated displacement up and down to produce forms such as part 300 in the present embodiment.
Accompanying drawing 6 is that the cutaway view that moves forward and backward part 500 that uses in the present embodiment is shown, and displacement produces part 300 and also presses identical structure formation the length except it up and down.As shown in the figure, the said part 500 that moves forward and backward possesses fixed track 510 fixing on upper frame 200, and said fixed track 510 has the corresponding length of fore-and-aft direction length with upper frame 200.And the medial surface in said fixed track 510 forms the mid-rail 520 of length than fixed track 510 weak points, and at the said mid-rail 520 inner operation rails 530 that combine.On the one hand, on said mid-rail 520, insert a plurality of balls 540, and form said ball 540 and fixed track 510 and operation rail 530 state of contact, thereby roll.On the other hand, be combined on the carriage 531 of operation rail 530 and connect upper frame 200, thus through will after the power of the power generating part 700 stated, and make back frame 600 carry out rectilinear motion.Promptly, when back frame 600 towards front and back during to rectilinear motion, mid-rail 520 and operation rail 530 move with respect to fixed track 510 simultaneously, especially said operation rail has the displacement longer than the amount of movement of mid-rail.What show this flow process moves forward and backward part as purchase, belongs to technique known.
Then power generating part 700 is described, Fig. 7 is equivalent to illustrate the part oblique view of the major part of power generating part.
Said power generating part 700 utilizes that upper frame 200 descends and the displacement of generation when applying load in the seat portion 10 that is combined in upper frame 700, change straight line into and move moving forward and backward part 500, and back frame 600 can move forward in view of the above.
Further specify the structure of said power generating part 700.
As the primary structure key element that constitutes said power generating part 700; Comprise: vertical tooth rack 710, gear-box 720, pinion 730, vertical bevel gear 740, horizontal bevel gear 750, spur gear 760, horizontal rack 770; Said vertical tooth rack 710 with vertical direction be arranged on lower section frame 100 above, and with after the pinion 730 stated be meshed.On the other hand, gear-box 720 is set, and to horizontal direction first s1 is set, pinion 730 and vertical bevel gear 740 are set on said first s1 in the lower side length that constitutes gear-box 720 at upper frame 200.Said pinion 730 is meshed with said vertical tooth rack 710, and said pinion 730 can be integrally formed with vertical bevel gear 740 and is rotated.
And lying low towards horizontal direction in gear-box 720 inside at the upside of said vertical bevel gear 740 is provided with spur gear 760, and said spur gear can rotate, at said spur gear 760 below in conjunction with the horizontal bevel gear 750 that is connected with vertical bevel gear 740.Through marriage relation upper frame 200 declines as stated, pinion 730 is along with vertical tooth rack 710 rotations, and this revolving force is delivered to horizontal bevel gear 750 through vertical bevel gear 740, and makes spur gear 760 rotations.
Through because the power that the displacement that 200 declines of said upper frame take place causes rotates said spur gear 760,, the revolving force that makes spur gear 760 also possesses horizontal rack 770 for being delivered to back frame 600.Said horizontal rack 770 combines its upper end in back frame 600 lower side, and towards front and back to layout, thereby along with rectilinear motion is carried out in the spinning movement of spur gear 760, so that back frame 600 moves.More preferably, for making said horizontal rack 770 correct engagement at spur gear 760, the side on gear-box 720 is arranged the guide roller 780 that contacts with the lateral surface (being provided with the opposition side of gear) of said horizontal rack 770 and rotate.Be designed to long horizontal rack 770 and the place that spur gear 760 is meshed, utilize said guide roller 780 to support, so the engagement between spur gear 760 and the horizontal rack 770 be more accurate, thereby can realize transmission of power smoothly.
Furtherly; Preferably arrange and be used to force to stop the rotation of said spur gear 760 so that back frame 600 is fixed on the retainer 790 of a certain position at said power generating part 700; Said retainer 790 is connected with arresting lever 791; Thereby the manipulation through arresting lever 791 realizes and the combining or remove combination of spur gear 760.Promptly, if said retainer 790 is meshed with spur gear 760, even then be applied to the load disappearance of seat portion 10, back frame 600 also stands fast and rests on mobile position.Said retainer 790 is as shown in the figure, is rotatably connected to a side of gear-box 720, and combines with the end of arresting lever 791, through promoting or the arresting lever 791 of leaving behind is realized and the breaking off and binding of spur gear 760.
When constituting said power generating part, utilize a plurality of gears in the present embodiment, but certainly utilized band or chain in addition.
Said switch portion 800 is as when the user takes seat portion 10; Apply under the state of load in said seat portion; Form half lock (half-lock) state that back frame 600 can only move towards the place ahead; And the load complete obiteration that in seat portion 10, applies just can change release (unlock) state that back frame 600 can move towards the rear into.Promptly, if the user takes seat portion 10; Back frame 600 reaches owing to said power generating part 700; Any restriction is not carried out in the reach of 800 pairs of back frames 600 of switch portion this moment; But if back frame 600 contact is at user's back position, just for back frame 600 is not retreated from existing position towards the rear, and towards the rear mobile of restriction.This state is referred to as half lock (half-lock) state, the phenomenon that back frame 600 was retreated suddenly when this just can prevent to move or load under the state that the user is seated temporary transient minimizing.
On the other hand,, become zero, so upper frame 200 rises the power that in power generating part 700 generations back frame 600 is retreated in view of the above at seat portion 10 externally applied forces when the user who is seated stands from chair.Back frame 600 should retreat into original position in view of the above, so switch portion 800 moves for the back leg that does not limit back frame 600, and should form release (unlock) state.
If scrutinize the concrete structure of said switch portion 800, comprise and rotate door bolt 810 and hook 820, said rotation door bolt 810 be arranged to can be in upper frame 200 inside towards front and back to the form of rotation.As shown in the figure, the part 500 that moves forward and backward that any lateral edges of upper frame 200 was arranged to and was located to rotation door bolt 810 is parallel to each other, and portion supports rotationally in the rear and front end.Said rotation door bolt 810 applies inwards direction rotation when loading in seat portion 10, and disappears when loading, and then rotates towards the outside.
Hook 820 be connected in back frame 600 below, and be arranged to and can in the angular range that limits, be rotated, thereby be combined in said rotation door bolt 810 or separated, and performance back frame 600 reaches or retreat or limit the function of retreating.As shown in the figure, hook 820 has the shape of front point point in order to be engaged on zigzag rotation door bolt 810, thereby if rotating engagement hook 820 on the door bolt 810, then back frame 600 just can not be retreated.
Said rotation door bolt 810 is according to having or not the load that applies in seat portion 10, and decision rotation direction, this point are as above explained, further specify the relation of said rotation door bolt 810 and seat portion 10.
The rear end of seat portion 10 combines with the rear end of upper frame 200 in the present embodiment, and the leading section of seat portion 10 can move up and down.Therefore work as the user and take seat portion 10, mobile down thereby the front end of seat portion is pushed down.Below the front ends of this seat portion 10, arrange the push rod 830 that the front end with said rotation door bolt 810 is connected, just can determine to rotate and fasten 810 rotation direction with a bolt or latch according to moving of said seat portion 10.
Following with the concrete structure of the push rod 830 that rotates door bolt 810 bindings.
Said push rod 830 is made up of top push rod 831 and bottom push rod 832, between said top push rod 831 and bottom push rod 830, is provided with coil spring 833.The upper end of said top push rod 831 is below seat portion 10, and the lower end of push rod 831 is injected the upper end of bottom push rod 832 and can be moved on top, and the lower end of bottom push rod 832 is connected with the front end that rotates door bolt 810.Promptly, be formed on the state of the upper end of top push rod 831 insertion bottom push rods 832, and between it, be provided with coil spring 833.If apply load in seat portion 10, top push rod 831 is exerted pressure and is moved down, and this moment is through the coil spring 833 power transmission bottom push rod 832 of exerting pressure so that rotate door bolt 810 inwards direction rotate.If said rotation door bolt 810 inwards rotates, switch portion 800 forms half lock (half-lock) state, do not rotate door bolt 810 because hook 820 is not engaged on, so back frame 600 can move towards the place ahead.Opposite move the back temporary position towards the place ahead fixedly the time when back frame 600, just keep hook 820 and be engaged on the state that rotates door bolt 810, thus towards the rear mobile of limiting back frame 600.
The rotation door bolt 820 that constitutes said switch portion 800 only rotates in the angular range that limits, and just can be positioned to rotate the position that door bolt 810 can combine with hook 820 ends.For this reason, rotating being provided with between the position of door bolt 810 and hook 820 in the present embodiment, layout has the door bolt guide 840 in the slit 841 of perforation.Said door bolt guide 840 is located at upper frame 200, and 841 parts are inserted break-through hook 820 in said slit.Especially near the end, be provided with a spacer pin 821 at said hook 820, be separated by with it and outstanding another spacer pin 821 that forms.Through said two spacer pins 821, hook 820 can rotate in restricted portion, and 841 left and right sides is arranged a spacer pin 821 respectively in the slit.
More preferably, when constituting said switch portion 800, will rotate door bolt 810 as required and be adjusted to released state, thereby but be sitting under the state on the chair the also position of fine adjustments back frame 600.For this reason, arrange push said rotation door bolt 810 front end so that its relieving rod 850 that rotates towards the outside.Structure through push rod 830 realizes taking the door bolt of side shifting rotation outwardly 810 under the state on the chair.The push rod of promptly, having explained 830 has top push rod 831 and bottom push rod 832; And between it, has a coil spring 833; Thereby the structure that has bottom push rod 832 reeve top push rods 831 and move; Therefore pass through moving and collapse coil spring 833 of relieving rod 850, therefore bottom push rod 832 can regulate rotation door bolt 810 along with fixing top push rod 831 rises.
< second embodiment >
The second embodiment of the present invention then is described, is suitable for the situation of technology of the present invention on the chair that the classroom student who shows in the present embodiment in school etc. uses.
Different with first embodiment, the shape of shape and lower section frame of supporter 30 that is fixed with lower section frame 100 is different, and the displacement up and down that especially links upper frame 200 and lower section frame 100 produces part 300, uses a plurality of hinged carrier bar 300a to form.Fig. 9 is the cutaway view according to the summary of the chair of second embodiment, and Figure 10 is the side view of summary that the structure of carrier bar is shown.
As shown in the figure; Said carrier bar 300a is for stable upper frame 200 and the lower section frame 100 of linking; Form at four direction; Utilize axle to link the approximately plate unit 310 of
font, so that upper frame 200 moves up and down with respect to lower section frame 100.Restrain in upper frame and lower section frame for web unit 310, on upper frame 200 and lower section frame 100, combine the binding carriage 320 of L font, and insert axle and the connecting plate unit.Owing to the size of the plate unit 310 that is positioned at topmost is maximum and more little more down, do not disturb and hinged carrier bar 300a mutually thereby form a plurality of plates unit 310, for good.The mobile relation of other back frames is identical with first embodiment, thereby omits its explanation.
According to backrest of the present invention thing to sit on movably, general office chair of not only having explained in the above or classroom be with being suitable on the chair, and can on sofa, be suitable for, and can be used as train or aircraft uses with chair.
Thing to sit on of the present invention is sitting in seat portion as the people; Automatically the back frame that backrest linked moves forward; Thereby support the back position, therefore help the posture that keeps correct, thereby the technology that can utilize on all chair classes such as chair or office usefulness, home-use chair and sofa the student.Concrete purposes of the present invention furtherly is expected to be widely used with on the chair etc. with chair or aircraft at train.
Claims (9)
1. backrest thing to sit on movably is characterized in that, comprising:
Be connected the lower section frame on the supporter;
Producing part with displacement up and down is media, the upper frame that is connected with said lower section frame;
Be located at the more than one elastic component between said lower section frame and the upper frame;
Be located at the left and right sides edge of upper frame, and be connected with back frame, thus can be towards front and back to the part that moves forward and backward that moves;
When applying when load in the seat portion that is combined in upper frame, because the displacement that said upper frame descends and takes place, change rectilinear motion on the part into moving forward and backward, and the power generating part that said back frame is moved forward;
When applying load in seat portion, become half lock (half-lock) state that back frame can only move towards the place ahead, when the load that is applied to seat portion disappears, become release (unlock) the state of switch portion that back frame can move towards the rear.
2. backrest according to claim 1 is thing to sit on movably, it is characterized in that, said up and down displacement produces part, carries out straight-line a plurality of vertical slide or a plurality of carrier bars that can be hinged by connecting said lower section frame and upper frame and constitutes.
3. backrest according to claim 2 is thing to sit on movably, it is characterized in that, said power generating part comprises:
The vertical tooth rack that vertical direction is provided with on lower section frame;
Be combined in the gear-box of upper frame;
Combine with first that is located at said gear-box downside, and with said vertical tooth rack pinion in mesh;
Adjacent with said pinion, and be combined in said first vertical bevel gear;
Be provided with in said gear-box inner horizontal direction, and at it below in conjunction with the horizontal bevel gear that is connected with said vertical bevel gear, and the spur gear that is rotated;
Be combined in the backrest lower side, and be meshed with said spur gear and towards the horizontal rack of back frame transferring power.
4. backrest according to claim 3 is thing to sit on movably, it is characterized in that said power generating part possesses the retainer that is connected with arresting lever and optionally combines or remove with spur gear in a side of spur gear.
5. according to the thing to sit on movably of each described backrest in the claim 1 to 4; It is characterized in that; Said switch portion comprises: change rotation direction in order to have or not according to the load of seat portion, the rotation door bolt that fore-and-aft direction combines in the inside of said upper frame; Be attached at below the back frame, can in the angular range that limits, be rotated action, said rotation is fastened with a bolt or latch the hook that optionally combines or separate.
6. backrest according to claim 5 is thing to sit on movably; It is characterized in that; Said backrest is thing to sit on movably; Seat portion can be that fixed part moves up and down with the rearward end of upper frame, below the front ends of said seat portion, is provided with the push rod that the leading section with said rotation door bolt is connected, and rotates door bolt and rotates thereby can make according to said seat portion mobile.
7. backrest according to claim 6 is thing to sit on movably, it is characterized in that said push rod comprises the top push rod below seat portion; The upper end is injected and can be moved through the downside of top push rod, the bottom push rod that the bottom combines with said rotation door bolt; Be located at the coil spring between said top push rod and the bottom push rod.
8. backrest according to claim 5 is thing to sit on movably; It is characterized in that said switch portion possesses the door bolt guide that is provided with rotating the slit of fore-and-aft direction perforation between door bolt and the hook; And standoff distance is provided with two outstanding spacer pins on said hook; Said hook connects said slit and is provided with, and forms contained state through two spacer pins, and limits the rotational angle of said hook.
9. backrest according to claim 5 is thing to sit on movably, it is characterized in that said switch portion possesses and pushes the front ends of rotating door bolt and regulate and rotate door bolt and be the relieving rod of released state.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2009-0032746 | 2009-04-15 | ||
| KR1020090032746A KR100919418B1 (en) | 2009-04-15 | 2009-04-15 | Chair with a movable back support |
| PCT/KR2010/002364 WO2010120139A2 (en) | 2009-04-15 | 2010-04-15 | Seating furniture having movable backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102395296A true CN102395296A (en) | 2012-03-28 |
Family
ID=41356192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800171486A Pending CN102395296A (en) | 2009-04-15 | 2010-04-15 | Seating furniture having movable backrest |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20120038195A1 (en) |
| EP (1) | EP2420159B1 (en) |
| JP (1) | JP5544009B2 (en) |
| KR (1) | KR100919418B1 (en) |
| CN (1) | CN102395296A (en) |
| WO (1) | WO2010120139A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107920666A (en) * | 2015-06-29 | 2018-04-17 | 赫尔曼米勒有限公司 | Attachment structure for suspension seat |
| CN109157040A (en) * | 2018-10-25 | 2019-01-08 | 重庆市肿瘤研究所 | Multi-functional PICC catheter maintenance seat |
| CN110356212A (en) * | 2019-06-27 | 2019-10-22 | 博众精工科技股份有限公司 | A kind of rotate adds tripper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101218124B1 (en) * | 2010-10-05 | 2013-01-11 | 송현서 | Wheelchair |
| DE102011104972B4 (en) | 2011-06-08 | 2015-03-05 | Haworth, Inc. | Seating furniture, in particular office chair |
| US9913539B2 (en) | 2013-03-15 | 2018-03-13 | Haworth, Inc. | Office chair |
| US10182657B2 (en) | 2016-02-12 | 2019-01-22 | Haworth, Inc. | Back support for a chair |
| CN110584361B (en) * | 2019-08-27 | 2022-04-26 | 华中科技大学 | Device capable of collecting kinetic energy of human body and assisting human body to sit down |
| CN114391720B (en) * | 2022-01-19 | 2023-05-05 | 江西晶亮实业有限公司 | Multifunctional foldable student tablet chair |
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| DE10055951A1 (en) * | 1999-12-15 | 2001-06-28 | Ihd Inst Fuer Holztechnologie | Furniture item for sitting comprises seat surface, horizontal two-part back rest and basic body, seat surface being located rotatably to basic body on side turned away from back rest |
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| WO2007148923A1 (en) * | 2006-06-22 | 2007-12-27 | Man Plus Co Ltd | Chair with automatically movable back support |
| KR20080111948A (en) * | 2007-06-20 | 2008-12-24 | 이종호 | Chair with a movable back support |
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- 2010-04-15 WO PCT/KR2010/002364 patent/WO2010120139A2/en active Application Filing
- 2010-04-15 US US13/264,867 patent/US20120038195A1/en not_active Abandoned
- 2010-04-15 CN CN2010800171486A patent/CN102395296A/en active Pending
- 2010-04-15 EP EP10764678.8A patent/EP2420159B1/en not_active Not-in-force
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| US3720442A (en) * | 1970-10-29 | 1973-03-13 | Schaffizel Kg Schulmoebel | Chair |
| DE10055951A1 (en) * | 1999-12-15 | 2001-06-28 | Ihd Inst Fuer Holztechnologie | Furniture item for sitting comprises seat surface, horizontal two-part back rest and basic body, seat surface being located rotatably to basic body on side turned away from back rest |
| CN1794932A (en) * | 2003-05-23 | 2006-06-28 | 曼普拉斯有限公司 | Chair with automatci regulated back |
| WO2007148923A1 (en) * | 2006-06-22 | 2007-12-27 | Man Plus Co Ltd | Chair with automatically movable back support |
| KR20080111948A (en) * | 2007-06-20 | 2008-12-24 | 이종호 | Chair with a movable back support |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107920666A (en) * | 2015-06-29 | 2018-04-17 | 赫尔曼米勒有限公司 | Attachment structure for suspension seat |
| CN107920666B (en) * | 2015-06-29 | 2021-11-23 | 赫尔曼米勒有限公司 | Attachment structure for a suspension seat |
| US11510502B2 (en) | 2015-06-29 | 2022-11-29 | MillerKnoll, Inc. | Attachment structure for suspension seating |
| US11812866B2 (en) | 2015-06-29 | 2023-11-14 | MillerKnoll, Inc. | Attachment structure for suspension seating |
| CN109157040A (en) * | 2018-10-25 | 2019-01-08 | 重庆市肿瘤研究所 | Multi-functional PICC catheter maintenance seat |
| CN109157040B (en) * | 2018-10-25 | 2021-05-11 | 重庆市肿瘤研究所 | Multifunctional PICC catheter maintenance seat |
| CN110356212A (en) * | 2019-06-27 | 2019-10-22 | 博众精工科技股份有限公司 | A kind of rotate adds tripper |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010120139A2 (en) | 2010-10-21 |
| EP2420159B1 (en) | 2014-01-15 |
| EP2420159A2 (en) | 2012-02-22 |
| JP5544009B2 (en) | 2014-07-09 |
| JP2012523886A (en) | 2012-10-11 |
| KR100919418B1 (en) | 2009-09-29 |
| WO2010120139A3 (en) | 2011-03-24 |
| US20120038195A1 (en) | 2012-02-16 |
| EP2420159A4 (en) | 2012-09-12 |
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