CN2904807Y - Height adjustable chair - Google Patents

Height adjustable chair Download PDF

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Publication number
CN2904807Y
CN2904807Y CN 200620059513 CN200620059513U CN2904807Y CN 2904807 Y CN2904807 Y CN 2904807Y CN 200620059513 CN200620059513 CN 200620059513 CN 200620059513 U CN200620059513 U CN 200620059513U CN 2904807 Y CN2904807 Y CN 2904807Y
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China
Prior art keywords
support
rocking arm
chair
lifting
jointed shaft
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Expired - Fee Related
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CN 200620059513
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Chinese (zh)
Inventor
罗玉明
罗朗
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Individual
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Individual
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Abstract

The utility model discloses a height adjustable chair, which is mainly composed by a seat plate, a back rest, a bracket, a bracket rocker arm, a lifting and positioning device and chair legs; is characterized in that the bracket is hinged correspondingly with the chair legs through the bracket rocker arm. The bracket rocker arm turns up and down taking the pivot hinged on the chair leg. When the bracket rocker arm is rocked to drive the bracket to move up and down, the up and down movements of the seat plate is realized; besides, a lifting and positioning unit is placed between the bracket and the chair legs. The present utility model provide the following virtues: (1) The seat plate can move up and down to adapt to sitting or standing postures of people with different heights; (2) A lifting and positioning unit is provided which can be positioned are various heights; (3) The seat plate can be turned upward at will to adjust the angle thus to adapt to various requirements of the user in reading, writing, drawing and design; (4) The chair has rational structure, is convenient to used and simple to operate, which is applicable to be used in various places such as schools, families, offices and studios, is beneficial to human eyes and vertebras, is beneficial to increase the studying and working efficiency.

Description

A kind of lifting chair
Technical field
The utility model relates to a kind of lifting chair, particularly relates to a kind of multi-functional lifting chair.
Technical background
Chair of the prior art, its structure is mostly fixed, and the adjustable chair of part also has only the adjusting of height, and its regulative mode is normally directly installed the vapour spring and finished on the central member of chair, center of gravity is unstable easily, and does not have the adjusting at seat board angle of inclination.From the Human Physiology hygiene as can be known, the user should have rational functional dimension coupling between the height of its height and chair, the seat board angle of inclination when using chair; Simultaneously, the user is when using chair, not necessarily only adopt sitting posture but also can adopt stance, so chair also should provide the function of standing and using, such chair can be for sitting down and stand use, and using the people can be more random comfortable, improves study, operating efficiency, reduce fatigue, healthy.Use and the incompatible chair of its height if the people is long-term, or can only adopt sitting posture for a long time, just might cause the pathology of back of the body vertebra and eyesight to descend, endanger healthy.
The utility model content
The chair that the purpose of this utility model is to provide a kind of adjustable-height and can regulates the seat board angle.
The purpose of this utility model is by the following technical programs to realize.
A kind of lifting chair that the utility model provides, mainly constitute by seat board, backrest, support, support rocking arm, lifting-positioning device and chair pin, it is characterized in that: seat board is rack-mount, it is hinged to carry out correspondence by the support rocking arm between support and the chair pin both sides, when the support rocking arm upwards shakes, drive support and rise, when the support rocking arm shakes downwards, the drive support descends, thereby reaches the purpose of the horizontal lifting of seat board.One pack support rocking arm is made of the single-piece support rocking arm more than two at least, its medium-height trestle rocking arm one end is articulated in the support side with jointed shaft, the other end is articulated in chair pin side with jointed shaft, be arranged in a straight line between the jointed shaft, no matter the support rocking arm fluctuates the line that connects its center of axle on jointed shaft on the support and the chair pin, all energy keeping parallelism quadrangle state makes the seat board balance lifting.Between support and chair pin, also be provided with lifting-positioning device, so that can on various height, live the position of support rocking arm surely.
One, described single-piece support rocking arm can have following various ways, is not limited to following form simultaneously:
(1) to be "-" linear rectangular for described single-piece support rocking arm, and two ends respectively have a hinge hole hinged by jointed shaft and support and chair pin.The jointed shaft of its medium-height trestle and chair pin can adopt simultaneously transversely arranged mode, and it is transversely arranged that the support rocking arm is carried out; The jointed shaft of support and chair pin also can adopt the mode of vertically arranging simultaneously, and the support rocking arm is vertically arranged.When the single-piece support rocking arm more than two is formed a pack support rocking arm, the distance of the hinged axis hole at each single-piece support rocking arm two ends must equate, make the quadrangle that forms between the joint lines in each jointed shaft of support rocking arm, hole remain parallelogram, the words spoken by an actor from offstage shape that forms between the single-piece support rocking arm is the journey parallelogram also, edge until each single-piece support arm closes up, can not raise again or descend, thus the heave amplitude of restriction seat board.
(2) described single-piece support rocking arm be " ⌒ " or " " or shaped forms such as " ~ " rectangular, its two ends respectively have a hinge hole hinged by jointed shaft and support and chair pin.The jointed shaft of its medium-height trestle and chair pin can adopt simultaneously transversely arranged mode, and it is transversely arranged that the support rocking arm is carried out, and the jointed shaft of support and chair pin also can adopt the mode of vertically arranging simultaneously, and the support rocking arm is vertically arranged.When the single-piece support rocking arm more than two is formed a pack support rocking arm, the hinged axis hole of each single-piece support rocking arm must equate the distance of each hinged axis hole, the quadrangle that forms between the joint lines remains parallelogram, but formed words spoken by an actor from offstage shape then changes with the lifting of support rocking arm, upper end-face edge or lower edge until this pack support rocking arm are closed up, can not raise again or descend, thus the heave amplitude of restriction seat board.
(3) to be that shaped form is rectangular mix use with linear is rectangular to described support rocking arm, and its two ends respectively have one, and to connect the hole hinged by jointed shaft and support rocking arm and chair pin.The jointed shaft of its medium-height trestle rocking arm and chair pin can adopt horizontal mode simultaneously, and it is transversely arranged that the support rocking arm is carried out; The hinged axis hole of support and chair pin also can adopt simultaneously vertically arrangement mode, and the support rocking arm is vertically arranged; The jointed shaft of support rocking arm and chair pin also can adopt arranged askew mode simultaneously, makes the support rocking arm carry out arranged askew.When three single-piece support rocking arms are formed a pack support rocking arm, 2 quadrangles that form between the tie line of the hinged axis hole of each single-piece support rocking arm remain parallelogram, but formed words spoken by an actor from offstage shape then changes difference with the lifting of support rocking arm, any edge until this pack support rocking arm closes up, can not raise again or descend, thus the heave amplitude of restriction seat board.
Two, described lifting-positioning device can have following various ways, is not limited to following form simultaneously.
(1) described lifting-positioning device is made of chute sleeve, the alignment pin of support bar, interior sideband barb tooth.Wherein ratchet can be located at any side in the chute, and support bar is socketed in the chute cover, and alignment pin correspondingly is arranged on the support bar lower end.Respectively there is a hinge hole termination of support bar and chute sleeve and is installed with jointed shaft, and wherein an end and support or support rocking arm are hinged, and the other end and chair pin are hinged.Wherein when support bar slides up and down in the chute sleeve, drive alignment pin and in chute, slide up and down, be connected on the required ratchet at alignment pin on the height of needs then, thereby the height of seat board is lived in the location.
(2) the vapour spring that constitutes by support bar, vapour tube and the touch that plays the role of positioning top of described lifting-positioning device.Wherein vapour spring one end and support or support rocking arm are hinged, and the other end and chair pin are hinged; When the touch top of supporting bar top is subjected to the external force roof pressure, can in the vapour tube, stretch, can stop on the height at needs when unclamping the external force back support rod, thereby the height of seat board be lived in the location.
(3) described lifting-positioning device is by only consequent, supporting parts constitute.It is ended consequent and is arranged on support rocking arm rear, and supporting parts is arranged on the support below.When seat board was in low level, support was pressed on the supporting parts; When seat board shakes to a high position, end consequent and stop the support rocking arm and shake no longer backward, thereby the height of seat board is lived in the location.
Three, a kind of improvement project of the present utility model is as follows
1, described support can be made of carrier base and rack side plate respectively, and wherein carrier base is placed for flat crouching, and rack side plate is positioned at the carrier base left and right sides.Described rack side plate is used for the articulated stand rocking arm; Described carrier base be one keep flat be approximate " Jiong " or " mouth " or " saying " font, end both sides at carrier base respectively are provided with a jointed shaft, carry out hinged with seat board, make seat board turn over adjusting angle on can be arbitrarily, can rely on live in people's the small of the back or buttocks when standing, thereby alleviate the load of people's lower limb for the people; Seat board also can directly be fixed on the carrier base, and mode keeps flat.Described carrier base can also be a supporting plate that keeps flat, and is provided with hinge leaf in the leading edge of supporting plate, and the hinged seat board of living makes seat board turn over adjusting angle on can be arbitrarily.
2, described support also may further be: wherein carrier base is placed for inclination, also balance inclination with it of chair pin simultaneously, and support rocking arm hinged respectively firmly carrier base and chair pin make seat board along the oblique line oscilaltion.
Four, also further improvement project is as follows for the utility model:
1, described chair pin can be the side plate that is positioned at the chair both sides, also can be the shelf that is positioned at the chair both sides, also can be a single-column that is positioned at the chair middle part, can directly be located on these chair pin with the axis hole that the support rocking arm is hinged.
2, described chair pin can be made of main chair pin and bench seat pin, and wherein main chair pin is vertically to be provided with, and the bench seat pin is connected with main chair pin, and the axis hole hinged with the support rocking arm can vertically be arranged on the main chair pin.
3, described chair pin can be made of main chair pin, secondary chair pin and bench seat pin.Different is with scheme 2: the bench seat pin can exceed forward, lives for human is foot-operated; Secondary chair pin also can exceed forward, and connects horizontal stripe between both sides, and is firmly foot-operated for human.
Five, further improvement project is as follows for the utility model: chair underfooting portion can be provided with the wheel of rotation, the moving of Convenient chair.
The utlity model has following advantage: (1) support separates with the chair pin, and mutually hinged by the support rocking arm, makes seat board can arbitrarily carry out lifting, carries out sitting posture or stance use with the people who adapts to different heights; (2) have lifting-positioning device, can on the height more than 2 kinds, locate the firmly position of support rocking arm.(3) seat board also has the jointed shaft between support and the seat board except that can directly being fixed on the support, makes seat board turn over adjusting angle on can be arbitrarily, is fit to multiple posture needs such as the user reads a book, writes, drawing.The utlity model has following beneficial effect: rational in infrastructure, easy to use, be widely used, can provide sitting posture and stance to use simultaneously, be of value to people's health.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail:
Fig. 1 is the structural representation of one of the utility model embodiment
Fig. 1-the 1st, the partial structurtes schematic diagram of the utility model embodiment one
Fig. 2 is the structural representation of the utility model embodiment two
Fig. 2-the 1st, the partial structurtes schematic diagram of the utility model embodiment two
Fig. 3 is the structural representation of the utility model embodiment three
Fig. 4 is the structural representation of the utility model embodiment four
Fig. 4-the 1st, the partial structurtes schematic diagram of the utility model embodiment four
Fig. 5 is the structural representation of the utility model embodiment five
Fig. 6 is the structural representation of the utility model embodiment six
Fig. 7 is the structural representation of the utility model embodiment seven
Fig. 7-the 1st, the structural change schematic diagram of the utility model embodiment seven
Fig. 8 is the structural representation of the utility model embodiment eight
Fig. 9 is the structural representation of the utility model embodiment nine
Figure 10 is the structural representation of the utility model embodiment ten
Figure 11 is the structural representation of the utility model embodiment 11
Figure 12 is the structural representation of the utility model embodiment 12
Figure 13 is the structural representation of the utility model embodiment 13
Figure 14 is the structural representation of the utility model embodiment 14
Figure 15 is the structural representation of the utility model embodiment 15
Figure 16 is the structural representation of the utility model embodiment 16
Figure 17 is the structural representation of the utility model embodiment 17
Figure 18-the 1st, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 18-the 2nd, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 19-the 1st, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 19-the 2nd, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 19-the 3rd, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 20 is the support rocking arm schematic diagram among each embodiment of the utility model
Figure 21-the 1st, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 21-the 2nd, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 21-the 3rd, the support rocking arm schematic diagram among each embodiment of the utility model
Figure 21-the 4th, the support rocking arm schematic diagram among each embodiment of the utility model
The specific embodiment
Be embodiment one of the present utility model shown in Fig. 1, Fig. 1-1, it mainly is made up of the seat board 1 of activity, the carrier base 3 that constitutes support and rack side plate 3-1, shaped form and rectilinear support rocking arm 2, the main chair pin 4 that constitutes the chair pin and bench seat pin 4-3, the ratchet chute 5 etc. that constitutes lifting-positioning device.Described seat board 1 is hinged on the both sides of carrier base 3 front ends that are " mouth " shape when overlooking by hinge 1-4, and seat board is that turn on can be arbitrarily in the center of circle with the hinge of this hinge, can rely on people's the small of the back or buttocks when standing for the people, thereby alleviate the load of people's lower limb; Device has the ratchet positioner 6 of adjusting angle at the bottom of the seat board and between carrier base 3 rear ends, makes seat board can be positioned on various required angles.Described rack side plate 3-1 is connected carrier base 3 both sides, and both sides respectively have 3 axis hole 3-3 vertical lines to arrange; The bench seat pin 4-3 that is " ∏ " shape during described main chair pin side-looking and is " ∏ " shape when overlooking is connected, main chair pin 4 rear sides also respectively have 3 hinged axis hole 4-8 vertical lines arrange and with 3 mutual balances of hinged axis hole 3-3 of rack side plate 3-1.Described support rocking arm 2 by one " " single-piece of shape and two "-" shapes consists of one group, each is vertically hinged with rack side plate 3-1 and main chair pin 4 for the axis hole at its two ends, realizes the purpose that seat board can carry out horizontal lifting.Described lifting-positioning device is made of the chute sleeve 5 and the alignment pin 5-2 of support bar 5-1 and band pawl.Described support bar is socketed in the chute sleeve, and alignment pin correspondingly is arranged on the lower end of support bar.Respectively hinged support rocking arm 2 and the bench seat pin 4-3 of living of lifting-positioning device, when holding in the palm seat board or support, support bar can slide up and down and drive in the chute sleeve on the ratchet that alignment pin is connected to desired location, the height location of realizing seat board.
Be embodiment two of the present utility model shown in Fig. 2, the 2-1, and be outside embodiment one different: wherein be "  " shape during the carrier base side-looking, be " H " shape when overlooking, 3-2 position, its middle and upper part is provided with back 1-3; Wherein main chair pin 4 is that a detached column and the bench seat pin 4-3 that is " eight " shape when overlooking are connected.
Shown in Figure 3 is embodiment three of the present utility model, be with the difference of embodiment one: wherein be "  " shape during the seat board side-looking and be directly installed on the support 3 that unites two into one by carrier base and rack side plate, its medium-height trestle rocking arm 2 is made of the single-piece support rocking arm of two " one " shapes, and wherein lifting-positioning device 5 is articulated in support 3 and bench seat pin 4-3.
Be embodiment four of the present utility model shown in Fig. 4, the 4-1, be with the difference of embodiment three: its medium-height trestle rocking arm 2 by three "
Figure Y20062005951300092
" the single-piece support rocking arm of shape constitutes; the existing vapour spring in market that is made of support bar 5-1 and vapour tube 5 and the touch top 5-2 that plays the role of positioning of lifting-positioning device wherein; when touching top 5-2 by machine driving, making the vapour spring produce pressure, to regulate support bar flexible.
Shown in Figure 5 is embodiment five of the present utility model, is with the difference of embodiment one: wherein seat board 1 is with the carrier base disjunctor and be directly installed on the rack side plate 3-1, and this moment, the chair plate turned on can not carrying out; Wherein chair pin 4 is the side plates that are positioned at the chair both sides, and is connected by a transverse slat; Its medium-height trestle rocking arm 2 is made of the single-piece support rocking arm of three " one " shapes; Wherein lifting-positioning device 5 is vapour springs, is articulated in seat board 1 and chair pin 4, when the 5-2 of the touch top of roof pressure vapour spring, and vapour spring generation telescopic variation, the height location of realizing seat board.
Shown in Figure 6 is embodiment six of the present utility model, is with the difference of embodiment five: wherein seat board 1 and support 3 whole disjunctors; Its medium-height trestle rocking arm 2 is made of the single-piece support rocking arm of two " one " shapes, and directly and seat board 1 and chair pin 4 be laterally hinged with; Wherein lifting-positioning device 5 upper ends are articulated in seat board or support rocking arm, and the lower end is articulated in chair pin 4.
Be embodiment seven of the present utility model shown in Fig. 7, the 7-1, be: wherein on seat board, increase armrests 1-2 with the difference of implementing six; Its medium-height trestle rocking arm 2 through the hinged axis hole 3-3 of seat board and support one too carry out hinged outside, also can upwards prolong again the hinged axis hole 3-4 of the hinged handrail 1-2 of living, wherein a support rocking arm becomes secondary chair pin 4-1 through prolonging after hinged with main chair pin downwards again, wherein secondary chair sole end is made foot pedal and is used to front curve; Be ") when wherein increasing a side-looking " the back bracket 3-2 of shape and separate with the support of support seat board, and fragment position is provided with jointed shaft 1-4 and chair pin 4 is hinged therein; Wherein increasing by a horizontal support rocking arm 2-1 is hinged on seat board 1 and the back bracket 3-2; Wherein lifting-positioning device 5 is hinged on the lower end of chair pin 4 and back bracket 3-2.During use, when the 5-2 of the touch of roof pressure vapour spring top, vapour spring generation telescopic variation, thereby the rocking back and forth of interlock positioning chair backrest 1-3, the lifting of seat board 1, the lifting of armrest of seat 1-2, the lifting of secondary chair pin 4-1.
Shown in Figure 8 is embodiment eight of the present utility model, is with the difference of embodiment six: seat board has only two kinds of location height; Wherein lifting-positioning device is made of back resistor 5, preceding supporting parts 5-1; Wherein the back resistor is the strut rail bar 5 that is arranged between 4 liang of upper lateral parts of chair pin, be used to stop the support rocking arm on shake amplitude; Wherein preceding supporting parts 5-1 is the horizontal stripe that is arranged between the chair pin, is used for living from following support the following degree of falling that shakes of support.
Shown in Figure 9 is embodiment nine of the present utility model, and be with the difference of embodiment eight: wherein seat board 1 and backboard 1-3 are installed on the support that is "  " shape; The shelf that wherein is approximate " h " shape during the side-looking of chair pin; Its medium-height trestle rocking arm 2 is articulated in support 3-1 and bench seat pin 4-2; Wherein increase by a back supporting parts 5-2, be used for the support rear portion that support is shaken on living; Connect a step type horizontal stripe 4-4 between the wherein secondary chair pin 4-1 both sides, firmly foot-operated for human.
Shown in Figure 10 is embodiment ten of the present utility model, and be with the difference of embodiment six: wherein seat board 1 is articulated in the front end of support 3 by hinge 1-4; Wherein device has ratchet positioner 6 between seat board bottom and support 3 rear ends; Wherein be the shelf of approximate " ∩ " shape during the side-looking of chair pin, support rocking arm 2 is articulated in bench seat pin 4-3 and support 3.
Shown in Figure 11 is embodiment 11 of the present utility model, is with the difference of embodiment one: its medium-height trestle rocking arm 2 is made of the single-piece support rocking arm of two " one " shapes; Wherein be approximate " A " shape during the side-looking of chair pin; Wherein main chair pin is provided with back 1-3 after upwards prolonging; Connect three step type horizontal stripe 4-4 between the wherein secondary chair pin 4-1 both sides, firmly foot-operated for human; Wherein lifting-positioning device 5 is hinged in support rocking arm 2 and bench seat pin 4-3 respectively.
Shown in Figure 12 is embodiment 12 of the present utility model, is with the difference of embodiment 11: its medium-height trestle rocking arm 2 is made of the single-piece support rocking arm of two " ⌒ " shapes; The side plate that is approximate " Δ " shape when wherein the chair pin is for side-looking; Wherein connect two step type horizontal stripe 4-4 between the both sides, chair pin front, firmly foot-operated for human; Wherein lifting-positioning device 5 is articulated in support rocking arm 2 and chair pin 4 respectively.
Shown in Figure 13 is embodiment 13 of the present utility model, and be with the difference of embodiment 12: its medium-height trestle rocking arm 2 is by two: " one " shape single-piece support rocking arm constitutes; Wherein be "  " shape during seat board 1 side-looking and be articulated in the rear end of support 3 by hinge 1-4, become seat board when making backrest 1-3 upset, this moment, seat board 1 became backrest; Lifting-positioning device 5 is articulated in support 3 and chair pin 4 respectively.
Shown in Figure 14 is embodiment 14 of the present utility model, is with the difference of embodiment three: when its medium-height trestle and seat board side-looking with approximate "  " shape that is inclination; Wherein increase secondary chair pin 4-1; Wherein be approximate " going into " font during the side-looking of chair pin; Wherein main chair pin 4 and carrier base 3-2 parallel oblique circle round after main chair pin extends and connect a horizontal stripe 4-4 between both sides, live for human is foot-operated; Wherein secondary chair pin 4-1 makes the chair pin can carry out folding by being articulated in main chair pin 4 at the back of main chair pin jointed shaft 4-8; Wherein lifting-positioning device 5 is vapour springs, is articulated in support 3 and main chair pin 4 respectively.
Shown in Figure 15 is embodiment 15 of the present utility model, is with the difference of embodiment four: the carrier base 3 that the seat board lower end that wherein is "  " shape during side-looking is connected with rack side plate 3-1, upper end 1-3 is " ∩ " shape when overlooking is connected; Wherein increase secondary chair pin 4-1, be approximate " A " font during the side-looking of chair pin; Its medium-height trestle rocking arm 2 is articulated in main chair pin 4 and rack side plate 3 respectively.
Shown in Figure 16 is embodiment 16 of the present utility model, is with the difference of embodiment 15: wherein be approximate " in vain " font during the side-looking of chair pin, main chair pin 4 prolongs the upper end and also is bent to handle 4-7; Wherein bench seat pin 4-6 two ends prolong the back wheel 4-8 are installed, and make chair can become the lifting wheelchair that can be carried out by the people.
Shown in Figure 17 is embodiment 17 of the present utility model, is with the difference of embodiment 16: wherein secondary chair pin 4-1 prolongs the back and is bent upwards after turning forward with bench seat pin 4-6 handing-over, is used to install foot pedal 4-4; The larger wheels 4-8 of the stage casing mounting strap hand rail cycle 4-9 of wherein main chair pin 4, people hold hand rail cycle can carry out front and back and rotate larger wheels, makes chair can become one and not only can have been carried out but also self controllable lifting wheelchair of advancing by the people.
Figure 18-1,18-2,19-1,19-2,19-3,20,21-1,21-2,21-3,21-4 are that the support rocking arm 2 among each embodiment of the utility model can further improved multiple aligning method; Wherein Figure 18-1 is that 3 single-piece support rocking arms are " one " shape, and jointed shaft is transversely arranged state; Wherein Figure 18-2 is that 3 single-piece support rocking arms are " one " shape, and jointed shaft is vertical arrangement; Wherein Figure 19-1 be 3 single-piece support rocking arms be " " shape, it is transversely arranged that jointed shaft is; Wherein Figure 19-2 be 3 single-piece support rocking arms be " " shape, jointed shaft is vertical arrangement; Wherein Figure 19-3 be 3 single-piece support rocking arms be " " shape, it is transversely arranged that jointed shaft is; Wherein Figure 20 is that 3 single-piece support rocking arms are "~" shape, and jointed shaft is vertical arrangement; Figure 21-the 1st wherein, by 2 single-piece support rocking arms be " one " shape, 1 single-piece support rocking arm be " " support rocking arm that shape constitutes, jointed shaft is vertical arrangement; Figure 21-the 2nd wherein, by 1 single-piece support rocking arm be "
Figure Y20062005951300125
" shape, 2 single-piece support rocking arms be the support rocking arm that " one " shape constitutes, it is transversely arranged that jointed shaft is; Figure 21-the 3rd wherein, by 2 single-piece support rocking arms be " " shape, 1 single-piece support rocking arm be the support rocking arm that " one " shape constitutes, jointed shaft is vertical arrangement; Wherein Figure 21-4 be 2 single-piece support rocking arms be "
Figure Y20062005951300127
" shape, 1 single-piece support rocking arm be the support rocking arm that " one " shape constitutes, jointed shaft is vertical arrangement.

Claims (11)

1, a kind of lifting chair, comprise seat board, backrest, support, support rocking arm, lifting-positioning device, chair pin, it is characterized in that: the support of support seat board and backrest separates with the chair pin, it is hinged that support and chair pin both sides are carried out correspondence by a pack support rocking arm with jointed shaft respectively, and wherein any pack support rocking arm is made up of the curved shape more than two or linear and the single-piece support rocking arm that can exchange; The support rocking arm is that the center of circle is made circular arc and rotated up and down to be hinged on jointed shaft on the chair pin; Between support and chair pin, also be provided with lifting-positioning device.
2, a kind of lifting chair according to claim 1 is characterized in that: its medium-height trestle rocking arm can be made up of more than one linear single-piece support rocking arms, and the air line distance of the jointed shaft at these single-piece support rocking arm two ends equates.
3, a kind of lifting chair according to claim 1, it is characterized in that: all take mode simultaneously arranged in a straight line with hinged support of support rocking arm and the jointed shaft on the chair pin respectively, and it is parallel to each other that the jointed shaft on arrangement of the jointed shaft on the support and the chair pin is arranged, equal energy parallelogram when the jointed shaft center in the pack support rocking arm between each single-piece support rocking arm connects as making straight line.
4, a kind of lifting chair according to claim 1, it is characterized in that: lifting-positioning device can be that a kind of chute that has at least two pawls by alignment pin, support bar and inner edge constitutes, and wherein support bar one end is connected in any pawl in the chute by alignment pin; One end of lifting-positioning device is undertaken hinged by jointed shaft and support rocking arm or support, the other end is undertaken hinged by jointed shaft and chair pin.
5, a kind of lifting chair according to claim 1, it is characterized in that: lifting-positioning device can be a kind of vapour spring that is made of touch top, support bar and vapour tube, wherein vapour spring one end carries out hingedly with jointed shaft and support rocking arm or support, and the other end carries out hinged with jointed shaft and chair pin.
6, a kind of lifting chair according to claim 1, it is characterized in that: lifting-positioning device can be by only consequent, supporting parts constitute, it is ended consequent and is arranged on the chair pin of support rocking arm back, and wherein supporting parts is arranged on the chair pin of support below.
7, a kind of lifting chair according to claim 1 is characterized in that: an end of lifting-positioning device is undertaken hinged by the lower end of the support of jointed shaft and support backrest, the other end is undertaken hinged by jointed shaft and chair pin.
8, a kind of lifting chair according to claim 1 is characterized in that: the support rocking arm can also can become secondary chair pin through prolonging after hinged with the chair pin downwards through upwards prolonging the hinged firmly armrests in back after hinged with support more again.
9, a kind of lifting chair according to claim 1 is characterized in that: the step type horizontal stripe that can connect one or more between the both sides, chair pin front.
10, a kind of lifting chair according to claim 1, it is characterized in that: the chair foot bottom can be installed small wheels by jointed shaft, also can by jointed shaft larger wheels be installed respectively in the both sides of chair pin medium position.
11, a kind of lifting chair according to claim 1 is characterized in that: after an end of seat board was can be by an end of articulated elements and support hinged, seat board turned on can carrying out.
CN 200620059513 2006-05-29 2006-05-29 Height adjustable chair Expired - Fee Related CN2904807Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102860699A (en) * 2012-10-11 2013-01-09 李玉青 Dual-purpose lift chair
CN104802581A (en) * 2015-04-02 2015-07-29 河南科技大学 Drawing robot
CN105498255A (en) * 2015-12-08 2016-04-20 深圳滨海航空文化科技有限公司 Parallelogram seat balance structure and mobile film watching system
CN108193842A (en) * 2017-12-28 2018-06-22 绿城装饰工程集团有限公司 A kind of beauty with lifting movable rail and preparation method thereof and beauty by being leaned on

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102860699A (en) * 2012-10-11 2013-01-09 李玉青 Dual-purpose lift chair
CN102860699B (en) * 2012-10-11 2015-02-11 青岛华辰中小企业创新创业服务有限公司 Dual-purpose lift chair
CN104802581A (en) * 2015-04-02 2015-07-29 河南科技大学 Drawing robot
CN105498255A (en) * 2015-12-08 2016-04-20 深圳滨海航空文化科技有限公司 Parallelogram seat balance structure and mobile film watching system
CN105498255B (en) * 2015-12-08 2018-06-05 深圳滨海航空文化科技有限公司 Parallelogram seat balanced structure and portable viewing system
CN108193842A (en) * 2017-12-28 2018-06-22 绿城装饰工程集团有限公司 A kind of beauty with lifting movable rail and preparation method thereof and beauty by being leaned on

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