CN1144071A - Height-adjustable folding chair - Google Patents
Height-adjustable folding chair Download PDFInfo
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- CN1144071A CN1144071A CN 96110720 CN96110720A CN1144071A CN 1144071 A CN1144071 A CN 1144071A CN 96110720 CN96110720 CN 96110720 CN 96110720 A CN96110720 A CN 96110720A CN 1144071 A CN1144071 A CN 1144071A
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Abstract
Disclosed is a folding chair with adjustable height, comprising a main frame, auxiliary landing legs which are in foldable connection with the main frame and a seat which is arranged on the main frame. The main frame has a pair of right and left rods and a transverse rod which is in bridge connection with the left and the right rods. The seat has hooks at the back end for hooking the transverse rod, and docking components are arranged near the back end of the seat for docking a propping rod.
Description
The present invention relates to a kind of height-adjustable folding chair.
A kind of known height-adjustable folding chair has been arranged so far, it has main frame and adjustable height seat support (USP4793654), and this main frame comprises big U-shaped metal tube and is arranged on this big metal tube and has the less U-shaped metal tube in the slit of vertical stretching.This seat support has vertical panel, the end of vertical panel puts in the slit of described vertical stretching, also has the backstop of making by hard rubber, this backstop is installed in and is positioned at a left side and the rear end of right vertical panel and with on its interconnected one axle of going up or stretching out with the right side, so that backstop is docked the front surface and the rear surface of the metal tube that withstands main frame left.
Because it is very comfortable that the effect that backstop plays cushion is seated chair, and seat support is adjustable continuously at any height.Yet therefore seat support bears by the backstop butt joint and withstands the friction that tube-surface causes.Therefore, although seat support can be securely fixed on the main frame when the user sits down, and seat support can have power upwards to lower slider and in the front end effect of seat support when the user leaves the seat, and this is because the cause that leverage and frictional force are eliminated.
In order to overcome this problem, another kind of chair has been proposed, the place, rear surface that it has many pipes at main frame can be connected projection (cf.Jikko Hei-1 with backstop engages, 11090, Japanese Utility Model authorization publication (Japanese UtilityModelExamined Publication) No.11090/1989).
In this chair, seat support dangerous less to lower slider when the front end of seat support is mentioned to a certain degree.Yet after seat support tilts to a certain degree, backstop will be connected projection and break away from, engage and slide to next projection under the seat support.And in the worst case, seat support may fall from main frame.
In addition, in above-mentioned known chair, because auxiliary supporting leg is rotatably connected to the middle part of main frame, the adjustable area limiting of seat height is in the zone of the connecting portion that is higher than auxiliary supporting leg.Therefore seat support can have lower position.And when chair folded, seat support was installed in main frame and its lower surface outwardly.Therefore, be installed in seat support instability and chair when folding its surface not attractive in appearance.
An object of the present invention is to provide a kind of user of making comfortable adjustable for height chair that is seated.Seat support be difficult to from the main frame landing and the adjustable height zone wide.
Another object of the present invention provides a kind of adjustable height chair that has good appearance when chair is folding.
A further object of the present invention provides a kind of being fit to manually, and the angle of seat support is according to the height of seat support or the chair adjustable according to user's posture.
The invention provides a kind of height-adjustable folding chair, it comprises a main frame, this main frame has at least one pair of left side and a plurality of transverse bars of right support bar and this support bar of cross-over connection, also comprises the auxiliary supporting leg that is connected with main frame collapsibly, but and demolition be installed in seat support on the main frame.This seat support has in its back-end and hooks the wherein hook of a transverse bar, and to be horizontal angle supported so that hook the seat support of transverse bar also to have a docking part that is used for docking the surface of withstanding vertical rod.And chair has the device that hangs seat support spare on main frame.
The elastic component that the docking section is preferably made by synthetic resin or rubber.And seat support preferably has a framework and is connected a seat support body on the framework, and its middle frame has a pair of in a left side that fore-and-aft direction stretches and right support bar and the lateral member that is connected support bar.Each support bar is preferably in its rear end and has hook.Support bar is preferably in its rear end and has vertically helping and the horizontal ribs that is connected with the seat support body of a buckle, makes support bar have L shaped or T shape cross section.And seat support preferably has and passes a left side and a lateral sticks of right vertical rib bottom so that two free ends of this lateral sticks are protruding from vertical rib, and wherein the elasticity interfacing part is fixed on the outstanding free end.And bracing piece preferably is connected across between the rear end of vertical rib so that hook is strengthened.
Above-mentioned suspension arrangement preferably includes the hook of seat support and is fixed on the hanger bar that the main frame dorsal part is used for hanging the hook of seat support.Suspension arrangement can be that a transverse bar makes seat support hang along main frame so that hook wherein by second hook in the combination of the transverse bar of main frame and second hook that is connected with seat support.In this case, second hook preferably also is connected with seat support rotationally.
Above-mentioned seat support body preferably allows the seat support body to be installed on the framework with respect to the elastic component that framework tilts by one.The top of main frame is preferably slightly to front curve.The best oblique the place ahead bending in the left side of main frame and the lower end of right support bar.
In the use location of chair, auxiliary supporting leg is opened with respect to main frame.Then chair is placed vertically with this attitude and is made support bar tilt to the front lower place.
Then, seat support is placed on the front side of main frame and keeps basic vertical angle with respect to support bar, and promptly seat support tilts to the back lower place.Next, the hook of rear end hooks a transverse bar, and seat support rotates so that withstand the surface of support bar and dock with interfacing part to the front lower place.Then, the user can be sitting on the seat support.At this moment, if the front end of seat support is subjected to power upwards or when front end promoted a little, seat support can rotate also around transverse bar and get back to settling position, because hook engages with transverse bar securely at once.Therefore, seat support can not glide and can not break away from main frame yet.
In the folding position, seat support is folded down from main frame in the mode opposite with above-mentioned use location.Make seat support be suspended on the main frame by the suspension arrangement of main frame and the device of seat support.At this moment, auxiliary supporting leg is folding withstands main frame so that chair is smooth.
Main frame has hanger bar and is used for hanging in the chair of hook of seat support therein, seat support be suspended on the main frame and the upper surface of seat support outwardly.That is, lower surface props up main frame.Therefore, has good surface appearance during folded state.
Seat support has in another chair of second hook therein, is hooked in front side or the rear side that seat support on any transverse bar can be suspended on main frame by second hook.In another chair that second hook is connected with seat support rotationally, second hook can return the inboard when seat support falls mistakenly therein.Therefore, second hook has obtained protection.Have in the chair of vertical rib and a transverse bar that passes vertical rib and a bracing piece at seat support, the intensity of hook can be born cross force and is difficult to crooked.
At hook or hook curve downwards and under the situation forward, when seat support hooks by its hook and supported when being horizontal attitude, hook is difficult to glide from transverse bar.In this state, have only the interfacing part butt joint to withstand the front surface of main frame.Therefore, when interfacing part when for example rubber or synthetic resin are made by elastomeric material, main frame can be not undermined, and keep good appearance.In addition, obtain good cushion effect, and chair is seated comfortable.
Transverse bar is arranged in the chair of bottom of main frame therein, and seat support can place lower position.
Make the seat support body with in the continuous chair of framework by an elastic component that allows the seat support body to tilt therein, the seat support body can incline according to user's position of centre of gravity and put.Therefore the operating efficiency of user on the seat improves.
The top of main body turns forward in the chair of certain angle therein, seat support also turns forward when seat support places top, therefore improved operating efficiency, therein in the also bandy forward chair in the lower end of vertical member, seat support is installed and is stablized when seat support places the bottom of main body, and this is because user's center of gravity drops on the rear side of the front end of support bar.
Below, with reference to the accompanying drawings, several preferred embodiments of the present invention is described:
Fig. 1 is the perspective view according to an embodiment of height-adjustable folding chair of the present invention.
Fig. 2, Fig. 3 and Fig. 4 are the front views of the chair in the difference presentation graphs 1, the side view when side view and folded state.
Fig. 5, Fig. 6 and Fig. 7 represent plane side view and the front view according to an embodiment of seat support of the present invention respectively.
Fig. 8 represents the dynamic balance schematic diagram that seat support of the present invention is suffered.
Fig. 9 a and Fig. 9 b represent the side view of another embodiment of seat support in use location and folding position.
Figure 10 a and Figure 10 b represent the side view of the another embodiment of seat support in use location and folding position.
Figure 11 represents the perspective view according to another embodiment of height-adjustable folding chair of the present invention.
Figure 12 represents the part cut-away side view of the chair of Figure 11.
Figure 13 and Figure 14 represent front view and the bottom view of another embodiment of seat support of the present invention respectively.
Figure 15 is the cross-sectional view of Figure 13 along the XV-XV line.
Figure 16 and Figure 17 are the side views of the seat support among Figure 13 to Figure 15.
Referring to Fig. 1, chair A comprises main frame 1, with the main frame 1 collapsible auxiliary supporting leg 2 that is connected with removably be fixed on seat support 3 on the main frame 1.As shown in Figure 2, main frame 1 has an a pair of left side and right support bar 4,4, with the arch upper end 5 that connects by the upper end that the crude metal pipe is curved the bar 4,4 that U-shaped makes.Left side bar 4 and right bar 4 are parallel to each other.Main frame 1 also has the leg 6,6 with the lower knuckle formation of bar 4,4, and many transverse bars of being made by the thin straight metal bar or the pipe of a pair of bar 4,4 of cross-over connection 7.Transverse bar 7 is transversely arranged with the spacing of standard, and the two ends of every transverse bar 7 are by for example being weldingly fixed on the bar 4.
In the present invention, transverse bar 7 is being from arranging to the broader region of bottom near the part of upper end 5, and do not arranging transverse bar at the mid portion near the connecting portion 8 of auxiliary supporting leg 2, and this expresses in Fig. 2.Main frame 1 also has hanger bar 9 in the position that its dorsal part is higher than the middle part.Two curved end that hanger bar 9 has and left and right bar 4,4 is fixed are so that hanger bar 9 cross-over connection bars 4,4 (see figure 3)s.Hanger bar 9 is by hooking the parts that crotch 24 described later hangs seat support 3, and hanger bar 9 and crotch 24 are one of suspension arrangements as in the claim 1.Main frame 1 also has the toe board of being made by thin metal rod or pipe 10.Toe board 10 is parts of placing user's both feet when seat support 3 places the higher position.
Auxiliary supporting leg 2 have a pair of vertical part 11 of making by the crude metal pipe and the lateral member 12 made by thin metal pipe so that form the H shape.Vertically the lower end of part 11,11 is outwardly-bent to form leg 13,13.The leg 6 of main frame 1 and auxiliary supporting leg 2 and each end of 13 put a sheath 14 of being made by rubber or synthetic resin so that do not damage the floor.Carriage 15 is fixed on the upper end of each vertical part 11.Carriage 15 cross sections take the shape of the letter U and are rotatably connected to by pin 16 on the bar 4 of main frame 1, its link position a little less than the middle part of bar 4 to form connecting portion 8 or to be hinged.In the present embodiment, as shown in Figure 3, when auxiliary supporting leg 2 was opened, bar 4 was withstood so that no longer be rotated further in the upper end of carriage 15.
As shown in Figure 4, the length L 1 of auxiliary supporting leg 2 is greater than the length L 2 of 4 the lower end from pin 16 to bar, and therefore, when seat support 3 placed as shown in Figure 3 higher position, stability better.Chair A among Fig. 1 and 2 is not provided with transverse bar 7 so that carriage 15 does not disturb transverse bar 7 in the position near connecting portion 8.Yet, can arrange transverse bar 7 (seeing Figure 11 and Figure 12) in the position of carriage 15 unlikely interference.
Referring to Fig. 5, seat support 3 has a metal framework 18 and is installed on the framework pad 19 as the seat support body.Metallic plate, web plate etc. can replace filling up 19 and be installed on the framework 18.Framework 18 is furnished with two cramp bars 20,20 on the fore-and-aft direction of chair, also be furnished with lateral member 21,21 in the front-end and back-end of cramp bar 20 and be used for interconnecting.
Shown in Fig. 6 and 7, each left side and right cramp bar 20 are to be made by the metallic plate that partly curves L shaped cross section.That is to say the horizontal ribs 23 that cramp bar 20 has vertical rib 22 and outwards stretches from the upper end of this vertical rib 22.The rear end of vertical rib is bent upwards, and stretches backward again, then is bent downwardly.Free end stretches forward to form hook 24 (see figure 6)s then.Vertical rib 22 and horizontal ribs 23 can connect into T shape cross section.And, thereby hook 24 also can stretch the crooked rear end that is located at horizontal ribs 23 by the rear end of horizontal ribs 23.
As shown in Figure 5, a metal tube or rod 25 are fixed near the bottom, rear end of vertical rib 22, so that rod 25 passes two vertical rib.Two free ends of rod 25 stretch out from vertical rib 22, and its extension puts the backstop of being made by rubber or synthetic resin 26.This rubber and synthetic resin preferably have the elastomeric material of favorable elasticity so that for example make when the user sits down that backstop is outside to be improved level of comfort when mobile and slow down impulsive force.And, when using synthetic resin, preferably use the synthetic resin that has with hard rubber same intensity and durability.Rod 25 two ends are connecting portion and backstop 26 is connector in claims.The reinforcement of being made by the metallic plate with L shaped cross section 27 puts between the root of hook 22.Reinforcement 27 prevents hook 24 bending when being subjected to side force.
When using above-mentioned chair A, at first, auxiliary supporting leg is opened, and stands on floor FL or similar by means of leg 13, the 13 chair A of the leg 6 of bar 4,4 and auxiliary supporting leg 2.This moment, the bottom of bar 4 was a foreleg, and auxiliary supporting leg 2 becomes back leg.The top that comprises the main frame 1 of transverse bar 7 can be used as backrest when needing.
Then, seat support 3 is fixed on the front side of main frame 1, and hook 24 puts between a pair of selected transverse bar 7 so that stretch out to the rear side of main frame 1.Hook 24 is hooked on the transverse bar 7 then, and seat support 3 turns forward, and backstop 26 props up the surface of bar 4, so but seat support 3 fixed bearings are basic horizontal state.
Can think that user's as shown in Figure 8 body weight W is in the center support of pad 19.And weight W is subjected to the component of reaction F1 on bar 4 surfaces by backstop 26 and another component of reaction F2 that hook 24 is subjected to transverse bar 7 supports, and these component of reactions F1 and F2 are times over weight W.Yet this component of reaction F1 and F2 are by prolonging can reduce apart from K between hook 24 and the backstop 26.
In the chair described in the USP4793654, seat support supports by the frictional force between backstop and the bar, when seat support rotates, has utilized leverage.Therefore, the spacing of the preceding stop of conventional chair and back backstop need not prolong.
On the contrary, in the present invention, between hook 24 and backstop apart from K since hook 24 be hooked on the transverse bar 7 thereby can extend.And, owing to bigger make that apart from K to act on pressure on transverse bar 7 and the hook 24 less so preferably enlarge apart from K.Although the position that the direction of power is sat according to the user and slightly changing, the power that transverse bar 7 is subjected to is basically on same direction.Therefore, reinforcement for example can support the rib of this direction power preferably towards transverse bar 7 settings.
In order to change the height of seat support 3, seat support 3 is once taking apart from main frame 1, and then hook 24 promptly hooks another the selected transverse bar 7 that is positioned at desired height once more.The height of seat support 3 can be adjusted gradually according to the spacing of transverse bar 7.That is, when spacing hour, seat support 3 can be regulated compactly, if desired, the spacing of transverse bar 7 can change along bar 4.For example, can arrange then sparse arrangement thick and fast at the regional transverse bar 7 of a regulation in another zone.The spacing of transverse bar is selected according to the operating position of chair.
When chair A was folding, seat support 3 was at first pulled down from the front side of main frame 1.Thereby seat support 3 hooks the hanger bar 9 that is positioned at main frame 1 dorsal part by its hook 24 and hangs on the main frame 1 then.And auxiliary supporting leg 2 folds to being close to main frame 1.In this state, seat support 3 is positioned at auxiliary one space, supporting leg 2 tops, thereby the thickness attenuation of folding seat.
Fig. 9 a represents the another embodiment according to the seat support of chair of the present invention.Seat support 31 has to be bent downwardly by cramp bar and stretches the hook 32 make.And seat support 31 has second hook 33.Second hook 33 can obtain by a following part that cuts vertical rib 22.
When chair was folding shown in Fig. 9 b, second hook can hang on the transverse bar 7, and this is because second hook 33 is positioned at the lower end of vertical rib 22.Therefore, one of them transverse bar 7 can be used as hanger bar, and need not set up hanger bar.Seat support 3 can be suspended on the front side of main frame.Yet, because auxiliary supporting leg generally also is suspended on rear side at the folding seat support 3 of rear side.Second hook 33 and transverse bar 7 are suspension dresses alleged in the claim 1.
Referring to Figure 10 a, another embodiment of seat support 34 has pair of engage members 35, and wherein each is supporting a backstop 26.Support member 35 stretches downwards from the rear end of vertical rib 22, and therefore, the distance that hook 24 and backstop are 26 increases, and the load that acts on hook 24 and the transverse bar 7 reduces.Yet, when seat support 34 is suspended on the hanger bar 9 in mode shown in Figure 4 and its surface outwards the time, support member 35 conflict with bar 4 or hanger bar 9 projection is very long backward.Therefore, in the present embodiment, support member 35 preferably is connected so that support member 35 withstands vertical rib 24 collapsibly with vertical rib 24 rotationally by pin etc.Therefore, seat support 34 can tightly be affiliated on main frame.Numeral 37 refers to be used for stoping support member 35 to press the backstop of the direction rotation of arrow S in the use location of seat support 34.In the present embodiment, although seat support 34 has the support member of drawing money on credit 35, seat support can be suspended on the short hanger bar 9 shown in Figure 10 b.
In addition, shown in Figure 10 b, thereby seat support 34 is suspended on the main frame by rubber or synthetic resin backstop 26 or rod 25 or reinforcement 27 being hooked on the flexure suspensions part 38 that stretches out from two bars 4, and this is because backstop 26, and rod 25 and reinforcement 27 are positioned at the upside of hook 24.Being fixed on the hook-shaped suspender 38 on the bar 4 and other parts that are hooked on the suspender 38 also is suspension arrangement alleged in the claim 1.
Although toe board 10 is fixed on the main frame 1 among Fig. 1, toe board 10 can be regulated its height as seat support 3.And in the above-described embodiments, the upper end of auxiliary supporting leg 2 is connected with the mid portion of main frame 1 rotationally.Yet auxiliary supporting leg 2 also is connected with the lower end of main frame rotationally.In this case, for example, auxiliary supporting leg links to each other with main frame and makes the auxiliary collapsible bar that props up of supporting leg, and the angle that supporting leg is scheduled to when supporting leg rotates back to the use location is withstood bar.And auxiliary supporting leg can be with the upper end of main frame, connections such as top.
In the above-described embodiments, main frame 1 has a left bar 4 and a right bar 4.Yet a pair of left bar can be used (USP4796654) in the conventional chair as using with a pair of right bar.In this case, respectively in the space between space between two left bars and two right bars with the transverse bar cross-over connection.
Chair B among Figure 11 is the modification of the chair A among Fig. 1.Main frame 1, the structure of auxiliary supporting leg 2 and seat support, and basic function and technique effect, i.e. folding mode, the adjusting of seat height and seat support are identical with chair A among Fig. 1 from the dismounting mode of main frame.
The chair B of Figure 11 has additional feature and has following function and technique effect.In other words, the top 40 of the main frame 1 of chair B is distinguished therein to front curve or tilt angle theta bending position, and this is clearly expression in Figure 12.Therefore, when the transverse bar 7a in the tilting zone on the hook 24 of the rear end of seat support 3 and top 40 is connected, the seat support 3 angle θ that also turns forward, this is represented by the dotted line P1 among Figure 12.Then, the user can be sitting on the slight sag seat support 3, and is sitting in desk or lower desk is other works like a cork.
As shown in figure 11, each left side and right bar 4 have forward and bandy foot 6.Therefore, the front end 42 of foot 6 is in the front of the extended line 43 of bar, and therefore, when seat support was positioned at lower position shown in the dotted line P2, user's centre of body weight dropped on the rear position of the front end 42 of foot 6.Thereby the user can stably be sitting on the lower position.
And, in chair B, near the regional transverse bar 7 of connecting portion 8 pitch arrangement with rule.Carriage 15 with U-shaped cross-section is fixed on the upper end of the longitudinal rod of auxiliary supporting leg 2.And the position between two transverse bars is by pin 16, and carriage 15 is connected with the bar 4 of main frame 1 rotationally.Pin 16 passes bar 4 in the lower slightly position, standard centre position than 7 of two transverse bars.The outside plate 44 of carriage 15 with U-shaped cross-section is rectangular basically, and this outside plate can cover the triangular open space between vertical part 11 of bar 4 auxiliary supporting legs 2 when auxiliary supporting leg is opened.
Therefore, when auxiliary supporting leg 2 folded, anything all was not easy to be hooked between bar 4 and longitudinal rod 11, thereby has improved the security of chair.The lower corner 46 best roundings of carriage 15.
Although carriage 15 is bigger, as shown in figure 12, by the conflict before making one arch slit 48 can prevent carriage 15 and transverse bar 7 on the interior plate 45 of carriage 15.Rectangle part below the slit 48 can cut shown in dotted line P3.
As shown in figure 11, seat support 3 has metal framework 18 and pad 19 in chair B.And hook 24 is stretched by the rear portion of the vertical rib 22 of framework 18 and makes.And, be used for seat support 3 is hung over the lower surface that a pair of second hook 48 on the main frame 1 is fixed on vertical rib 22.Therefore, thus seat support 3 is by hanging over second hook 49 wherein the front side or the rear side that can hang over main frame 1 on the transverse bar 7.Its upper surface can keep good surface appearance in the folding position outwardly like this when seat support 3 hung.
Be used for making the hook 32 of seat support 31 among layout that seat support 3 keeps the hook 24 of horizontal attitudes and second hook 49 and Fig. 9 a identical with second hook 33.Yet hook 24 is stretched and moulding backward by the vertical rib 22 of the chair 13 of Figure 11, so hook 24 has higher-strength.
Another embodiment of Figure 13 to 15 expression seat support, referring to Figure 13, seat support 50 has metal framework 51, the elastic component 53 between seat support body 52 and insertion seat support 50 and the framework 51.Elastic component 53 is mainly made by rubber or soft synthetic resin.
Framework 51 has a left side and right vertical rib 54,54, with the interconnective cross rib 55,55 of vertical rib, and is located at plate 56 on the zone of sealing vertical rib 54 and cross rib 55.These vertical rib 54, cross rib 55 and plate 56 are for example by being welded together.
As shown in figure 15, each rear end of vertical rib 54 has and the identical hook 24 of hook 24 among Fig. 5.As shown in figure 14, the reinforcement of being made by metal bar 57 is connected across between the root of a left side and right hook 24.Near metal bar or manage 25 and end, run through near a left side and right vertical rib 54.The two ends of metal bar 25 are with the backstop of being made by rubber or synthetic resin 26.
And second hook 59 is rotatably connected to the bottom of vertical rib 54 by pin 58.Second hook 58 can make such as a metal bar by bending.In this embodiment, even seat support 50 falls mistakenly, therefore second hook 59 can be not crooked in the vertical rib 54 because second hook 59 advances as shown in phantom in Figure 15.Second hook 59 is by bar 59a cross-over connection as shown in phantom in Figure 14.In this case, about second hook be unitary rotation, therefore, seat support 50 can hang on the main frame at an easy rate (sees Figure 12).
Plate 56 on vertical rib 54 and cross rib 55 has 6 holes 60, and 3 holes of promptly every as shown in Figure 14 row are totally two rows.Elastic component 53 is near 4 holes 60 of front side.As shown in figure 15, elastic component 53 has column rubber bumper 61, is arranged in the disk shape pad 62 at buffer 61 two ends and the screw rod 63 of insertion buffer 61 and pad 62.Screw rod 63 has threaded portion at its two ends.
Referring to Figure 14 and Figure 15, seat support body 52 has the frame 64 that makes by a crooked metal tube, inserts the glued board 65 in the frame 64, the metallic plate 66 of the front and rear of cross-over connection frame under the surface, and be installed in pad 67 on the glued board 65.Pad 67 can be made by foam rubber.The upper end precession of screw rod 63 is embedded in the nut 68 in the glued board 65, and the hole 60 of the lower end of screw rod 63 by plate 56 is inserted on the framework 51 and with another nut 69 and fixedlys connected.
When the user is sitting on the seat support 50 and weight when being pressed in the front side of seat support 50, seat support body 52 turns forward as shown in figure 16, and this is because elastic component 53 pressurizeds between framework 51 and the seat support body 52 stretch and the cause of distortion.When user's weight was pressed in the rear side of seat support 50, seat support body 52 receded as shown in figure 17.And in an identical manner, seat support body 52 can be left and right bank.
Therefore, the user can sit into multiple posture as requested.Those elastic components 53 of arranging by preset space length not only provide the inclination of seat support body, and have vertical cushion effect.And elastic compression is more little, and the weight that elastic component 53 supports is big more.Therefore, seat support body 52 no longer tilts after tilting to a certain degree.Therefore, the user sits more comfortable stablely.
If on a left side and right positions auxiliary side opening 60 and embedding nut 68 are set, the left side of seat support body 52 and Right deviation oblique angle also can be regulated.
As mentioned above, in folding seat of the present invention, the height of seat support is easy to regulate.And because hook can be connected on the transverse bar, seat support can engage with main frame securely.And even have obstacle or have the zone of no transverse bar for main frame, seat support can be connected lower position and higher position, and this is owing to seat support is adjustable.
In the chair with termination case of being made by rubber or synthetic resin, the bar that termination case produces cushion effect and main frame is protected.
Although different preferred embodiments has been described with reference to the drawings above, the present invention is not limited to the foregoing description, only otherwise exceed described scope of the present invention of claims and essence, can make multiple change and correction.
Claims (12)
1. a height-adjustable folding chair comprises:
(a) has the main frame of at least one pair of left side and the transverse bar of right support bar and a plurality of cross-over connection support bars;
(b) the auxiliary supporting leg that is connected with main frame collapsibly;
(c) be removably mounted on seat support on the main frame;
(d) described seat support has a hook, and wherein transverse bar is hooked in this rear end that is hooked in seat support, also has the docking section that is used for docking the surface that props up bar so that hook the angle that the seat support of transverse bar can support to basic horizontal; And
(e) when the folding position of chair, be used for seat support is suspended on device on the main frame.
2. chair as claimed in claim 1 is characterized in that the interfacing part that the docking section is made by elastomeric material can cover.
3. chair as claimed in claim 1 is characterized in that seat support has framework and the seat support body that is connected on the framework;
Framework has an a pair of left side and the right support bar that stretches at fore-and-aft direction and makes the interconnective lateral member of support bar; With
Each support bar has hook in its back-end.
4. chair as claimed in claim 3 is characterized in that described support bar has vertical rib, has hook in the rear end of this vertical rib, and support bar also has the horizontal ribs that is connected with the seat support body.
5. chair as claimed in claim 4 is characterized in that seat support has the lateral sticks of the bottom of passing a left side and right vertical rib so that two free ends of this lateral sticks stretch out vertical rib; And
The elasticity interfacing part is fixed on the free end of lateral sticks.
6. chair as claimed in claim 3, it is characterized in that a reinforcement across between two rear ends of vertical rib so that hook is strengthened.
7. chair as claimed in claim 1 is characterized in that suspension arrangement comprises the hook of seat support and is fixed on hanger bar on the main body so that this hook can be hooked on this hanger bar.
8. chair as claimed in claim 1, it is characterized in that a transverse bar that suspension arrangement comprises main frame with second hook that is connected with seat support so that seat support can be hooked along main frame.
9. chair as claimed in claim 1 is characterized in that second hook is connected with seat support rotationally.
10. chair as claimed in claim 2 is characterized in that the seat support body is installed on the framework by an elastic component, and this elastic component allows the seat support body to tilt with respect to framework.
11. chair as claimed in claim 1 is characterized in that described main frame has a top, this top slightly turns forward with respect to the main frame middle part.
12. chair as claimed in claim 1, the lower end that it is characterized in that a left side and right support bar is to the bending of oblique the place ahead.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP245568/95 | 1995-08-29 | ||
| JP245568/1995 | 1995-08-29 | ||
| JP24556895A JP3418486B2 (en) | 1994-09-06 | 1995-08-29 | Height-adjustable folding chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1144071A true CN1144071A (en) | 1997-03-05 |
| CN1112885C CN1112885C (en) | 2003-07-02 |
Family
ID=17135658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96110720 Expired - Fee Related CN1112885C (en) | 1995-08-29 | 1996-05-17 | Height-adjustable folding chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1112885C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200480729Y1 (en) * | 2016-03-29 | 2016-06-29 | 김경훈 | Rehabilitation Patient chair rubber cushioning tilt |
| CN108209261A (en) * | 2018-01-15 | 2018-06-29 | 尚李玲 | A kind of portable seat of adjustable seat height |
-
1996
- 1996-05-17 CN CN 96110720 patent/CN1112885C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200480729Y1 (en) * | 2016-03-29 | 2016-06-29 | 김경훈 | Rehabilitation Patient chair rubber cushioning tilt |
| CN108209261A (en) * | 2018-01-15 | 2018-06-29 | 尚李玲 | A kind of portable seat of adjustable seat height |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1112885C (en) | 2003-07-02 |
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