CN203873342U - Chair base plate and chair with same - Google Patents
Chair base plate and chair with same Download PDFInfo
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- CN203873342U CN203873342U CN201420141952.0U CN201420141952U CN203873342U CN 203873342 U CN203873342 U CN 203873342U CN 201420141952 U CN201420141952 U CN 201420141952U CN 203873342 U CN203873342 U CN 203873342U
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- movable supporting
- supporting plate
- nut
- seat support
- supporting parts
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Abstract
The utility model discloses a chair base plate and a chair with the same. The chair base plate comprises a tray main base, a seat supporting plate, a movable supporting part and a pair of movable supporting plates, wherein the seat supporting plate is arranged above the tray main base; the front end of the movable supporting part is pivoted with the seat supporting plate, the lower end of the movable supporting part is pivoted with the tray main base, the rear end of the movable supporting part is connected with a chair backrest, and the front end and the rear end of the movable supporting part can pivot by taking the lower end of the movable supporting part as a supporting point; the movable supporting plates are positioned in front of the movable supporting part; the upper end and the lower end of each movable supporting plate are pivoted with the seat supporting plate and the tray main base, respectively, so that the seat supporting plate is subjected to balance supporting when moving along with the movable supporting part; an elastic part for resisting backward rotation of the movable supporting part is mounted on a pivot shaft for connecting the movable supporting part with the tray main base. According to the chair base plate, a user can be properly pressed when leaning back on the backrest, and the friction between the backrest and the back of the user can be reduced.
Description
Technical field
The utility model relates to a kind of Chair underframe and has the seat of this Chair underframe.
Background technology
The support chassis design of seat at present, for realizing backrest layback, designs many more complicated, and parts are more and especially must adopt more screw, and phenomenon that easy generation damages or screw gets loose, causes fault.Meanwhile, design the layback pressure of the spring load backrest that utilizes different mode because swinging back more, be difficult to accurately adapt to user's body weight or active situation, while facing upward, often produce too gently or too heavy constriction, make adjustment purposes therefore need to adopt compared with multi-part.In addition, the chair back changes in the distance of when layback and seat support, and the chair back and user back rub, and cause sense of discomfort.
Utility model content
Main purpose of the present utility model is to overcome the deficiencies in the prior art, a kind of Chair underframe and the seat with this Chair underframe are provided, allow user control easily backrest layback, and can not produce too gently or too heavy constriction, and can reduce and even eliminate the sense of discomfort that the friction between backrest and user back brings.
For achieving the above object, the utility model is by the following technical solutions:
A kind of Chair underframe, comprise pallet main basal base, seat support supporting plate, movable supporting parts and a pair of movable supporting plate, described seat support supporting plate is arranged on the top of described pallet main basal base, for support seat support, the front end of described movable supporting parts is connected with described seat support supporting plate pivoting, the lower end of described movable supporting parts is connected with described pallet main basal base pivoting, the rear end of described movable supporting parts is for being connected with backrest, the front end of described movable supporting parts, it can take described lower end as fulcrum pivotable that lower end and rear end are triangle relation and described front end and described rear end, described a pair of movable supporting plate is positioned at the front of described movable supporting parts, each movable supporting plate upper, lower end is connected with described seat support supporting plate and described pallet main basal base pivoting respectively, so that described seat support supporting plate is subject to balanced support when with described movable supporting component movement, on the pivot that described movable supporting parts are connected with described pallet main basal base, the elastic component rotating backward for resisting described movable supporting parts is installed.
In a preferred embodiment, described elastic component is torque spring, the main part of described torque spring is fixed on the pivot that described movable supporting parts are connected with described pallet main basal base, and the elongated end of described torque spring is pressed on the pivot that described movable supporting parts are connected with described seat support supporting plate.
In a preferred embodiment, also comprise the locking mechanism being arranged on pallet main basal base, described locking mechanism is connected with described seat support supporting plate and/or described movable supporting parts, for locking described seat support supporting plate and described movable supporting parts.
In a preferred embodiment, described locking mechanism comprises screw rod, nut and line traffic control assembly, described nut is arranged in described pallet main basal base, described screw rod upper end is connected on the pivot that described movable supporting parts are connected with described seat support supporting plate, relative upper end, described screw rod lower end is forward and insert described nut, there are teeth the part position of described screw rod periphery, in described nut, there are teeth the part position in week, in the first rotation position of described nut, described nut engages with the teeth of described screw rod and secures the above screw rod, in the second rotation position of described nut, thereby the described screw rod of the teeth of described nut and described screw rod dislocation can free in and out activity in described nut, described line traffic control assembly is connected with described nut, be used for controlling described nut switches between described the first rotation position and described the second rotation position.
In a preferred embodiment, it is flat flat-shaped that the lower end of described screw rod is, flat flat face is in the next, left and right sides band teeth, in the first rotation position of described nut, the teeth of described nut be in described flat flat relative upper the next, and the internal diameter of the left and right directions of described nut is larger than the width of described screw rod, and be the second rotation position of 90 degree angles at described nut with the first rotation position, the teeth of described nut rotate to the side position being meshed with the left and right sides teeth of described screw rod, lock described screw rod.
In a preferred embodiment, described line traffic control assembly comprises line traffic control, movable pulling part, movable axis, torsion spring and nut set, described nut is fixed in described nut set, described nut set has outstanding sidepiece, on described sidepiece, there is groove, described line traffic control is connected with described movable pulling part, described torsion spring is fixed on described movable pulling part by described movable axis, the elongated end of described torsion spring is limited in the groove of described sidepiece of described nut set, the flexible of described line traffic control driven described nut set rotation and then driven described nut to switch between described the first rotation position and described the second rotation position by described movable pulling part and described torsion spring.
In a preferred embodiment, Chair underframe also comprises the top cover being arranged on pallet main basal base, offers the hole slot for described elastic component and described locking mechanism activity on described top cover.
In a preferred embodiment, described pallet main basal base and described movable supporting parts are the groove shape parts with pair of sidewalls, the rear end of described pallet main basal base embeds in the groove that described movable supporting parts define, between described pallet main basal base and described movable supporting parts, between described pallet main basal base and described a pair of movable supporting plate, all on corresponding sidewall, forming described pivoting connects, the two counter-lateral quadrents lugs that described seat support supporting plate is given prominence to downwards by the bottom by this plate form described pivoting with the sidewall of described a pair of movable supporting plate and described movable supporting parts respectively and are connected.
In a preferred embodiment, the size of described a pair of movable supporting plate and installation site meet under the state moving after occurring with described seat support supporting plate, make the front end of described seat support supporting plate be an angle of inclination of upwards lifting with respect to the rear end of described seat support supporting plate.
A kind of seat, comprises seat support and backrest, also comprises described Chair underframe, and described Chair underframe is connected with described backrest and supports described seat support.
The beneficial effects of the utility model:
According to the utility model, when seat user sits on the seat and leans against while swinging back on backrest, movable supporting parts are subject to the user's who is transmitted by seat support supporting plate body weight pressure and the resistance of elastic component (equaling elastic-restoring force) on the one hand, be subject on the other hand the layback pressure that backrest transmits, the lower end that both moment is connected with pallet main basal base pivoting taking movable supporting parts is fulcrum generation balance, if the body weight pressure that people applies is larger, lean against layback pressure on backrest and produce balance when larger, otherwise, if the body weight pressure that people applies is less, lean against the less balance that just can produce of layback pressure on backrest.Therefore, the people of different weight is in order to adjust angle and the position of backrest layback, the layback pressure that need to apply to backrest is that the body weight pressure that applies according to people and the opposing degree of elastic component automatically adapt to, and these different demands that exactly met the user of different weight (in general, it is larger that in layback process, health back is subject to the reaction force of backrest, comparatively comfortable for cardinal principle severe one, and reaction force smaller be comparatively comfortable to corpusculum severe one), user can be adjusted the layback angle of backrest easily according to the muscle power of oneself, control backrest and stay in the most suitable angle of feeling of stress that health back is produced, thereby layback adjustment process in and backrest is being stabilized in after suitable angle and position, the situation that all there will not be backrest too gently or too to oppress health back pressure.And in the time that user needs backrest to reduce to swing back, only health need be leaned forward slightly, the power that now backrest comes for the transmission of balancing activity support component, also user's back reach will be affixed to, make the layback pressure at user back and body weight pressure that user applies add that the current restoring force of elastic component remains on poised state, and in process forward, the restoring force of elastic component reduces, therefore layback pressure also can correspondingly reduce, so, user can easily control the chair back and arbitrarily regulate, and makes its reinstatement or adjusts to the satisfactory angle of user.
Except above-mentioned adaptive advantage, because backrest is in the adjustment process of layback, seat support supporting plate is synchronizeed together to back upper place to mobile with backrest under the drive of movable supporting parts, thereby the relative distance between seat support and backrest can not be widened, this makes effectively to be avoided or to reduce significantly backrest friction to user's health back in layback process.
In the process of rotating before and after its fulcrum at movable supporting parts, the pivotally connected front end of itself and seat support supporting plate drives the respective rear ends of seat support supporting plate to move along fan-shaped track, i.e. also upwards lifting in mobile backward, or also dip when moving forward, the movable supporting plate that is positioned at movable supporting parts front provides the supporting force that makes its balance to seat support supporting plate, upper by movable supporting plate, the design that lower end is connected with seat support supporting plate and pallet main basal base pivoting respectively, movable supporting plate is except providing supporting force, can also in the time that driving seat support supporting plate to move, movable supporting parts carry out pivoting interlock, keep synchronizeing with the action of movable supporting parts.In a preferred embodiment, the size of movable supporting plate and installation site meet in the time moving backward with seat support supporting plate, make the front end of seat support supporting plate be an angle of inclination of upwards lifting with respect to the rear end of seat support supporting plate.This gradient of lifting more cosily takes a seat user in the time swinging back.
In a preferred embodiment, adopt locking mechanism to comprise screw rod, nut and the line traffic control assembly through special configuration, utilize line traffic control control nut to rotate to different angles, nut can be switched on and make the state of screw rod locking or allow screw rod in nut, free in and out movable state, thereby user can or discharge screw rod by line traffic control lock nut, and then by screw rod, movable supporting parts and seat support supporting plate are locked in place, or release screw rod, make movable supporting parts and seat support supporting plate movable, to carry out the adjusting of backrest layback angle.
Brief description of the drawings
Fig. 1 is the Chair underframe original state schematic diagram of the utility model embodiment;
Fig. 2 is the Chair underframe layback view of the utility model embodiment;
Fig. 3 is the mounting structure exploded perspective view of the utility model embodiment;
Fig. 4 is the locking mechanism exploded perspective view of the utility model embodiment;
Fig. 5 is the seat original state schematic diagram of the utility model embodiment;
Fig. 6 is the seat layback view of the utility model embodiment.
Description of symbols in figure:
1 chassis main basal base
2 seat support supporting plates
3 movable supporting parts
4 movable supporting plates
5 elastic components
6 spring sound insulation gum covers
7 chassis main body box top covers
8 seat supports
9 backrests
10 Chair underframes
11 connect the axle of movable supporting parts 3 and chassis main basal base 1
12 connect the axle of movable supporting parts 3 and seat support supporting plate 2
13 connect the axle of movable supporting plate 4 and chassis main basal base 1
14 connect the axle of movable supporting plate 4 and seat support supporting plate 2
15 limit shafts
21 screw rods
The connector of 22 connecting screw rods 21 and axle 11
The reinforcement of 23 connecting screw rods 21 and axle 11
The auxiliary member of 24 fixed connecting pieces 22 and bearing 11
25 nuts
The installed part of 26a placing nut 25
The installed part of 26b placing nut 25
The installed part of 26c placing nut 25
27 torsion springs
28 movable pulling parts
29 place the activity office seat of torsion spring 27
30 movable axis
31 line traffic controls
The acoustic mastic meson of 51 main basal bases 1
The acoustic mastic meson of 52 seat support supporting plates 2
The plastic cement tail-hood of 53 axles 11,12,13,14
54 clasps
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be emphasized that, following explanation is only exemplary, instead of in order to limit scope of the present utility model and application thereof.
Consult Fig. 1 to Fig. 3, according to some embodiment, a kind of Chair underframe comprises pallet main basal base 1, seat support supporting plate 2, movable supporting parts 3 and a pair of movable supporting plate 4, seat support supporting plate 2 is arranged on the top of pallet main basal base 1, for support seat support 8, the front end of movable supporting parts 3 is connected by common axle 12 pivotings with seat support supporting plate 2, the lower end of movable supporting parts 3 is connected by common axle 11 pivotings with pallet main basal base 1, the rear end of movable supporting parts 3 is for being connected with backrest 9, the front end of movable supporting parts 3, lower end and rear end are triangle relation and front-end and back-end can take lower end as fulcrum pivotable, a pair of movable supporting plate 4 is positioned at the front of movable supporting parts 3, each movable supporting plate 4 upper, lower end is connected with seat support supporting plate 2 and pallet main basal base 1 pivoting respectively, so that seat support supporting plate 2 is subject to balanced support in the time moving with movable supporting parts 3, the elastic component 5 rotating backward for resisting movable supporting parts 3 is installed on the pivot that movable supporting parts 3 are connected with pallet main basal base 1.
Figure 1 shows that state when seat user is sitting on seat 8 but backrest 9 is swung back.As shown in Figure 2, when seat user leans against while swinging back on backrest 9, the front end of movable supporting parts 3 is subject to the resistance (equaling elastic-restoring force) by the user's of seat support supporting plate 2 going downs body weight pressure and elastic component 5, the rear end of movable supporting parts 3 is subject to the layback pressure of backrest 9 going downs, the lower end that both moment is connected with pallet main basal base 1 pivoting taking movable supporting parts 3 is fulcrum generation balance, if the body weight pressure that people applies is larger, lean against layback pressure on backrest 9 and produce balance when larger, otherwise, if the body weight pressure that people applies is less, lean against the less balance that just can produce of layback pressure on backrest 9.Therefore, angle and the position of swinging back in order to adjust backrest 9, the layback pressure that the people of different weight need to apply to backrest 9 is that the body weight pressure that applies according to people and the opposing degree of elastic component 5 automatically adapt to, and these different demands that exactly met the user of different weight (in general, it is larger that in layback process, health back is subject to the reaction force of backrest 9, comparatively comfortable for cardinal principle severe one, and reaction force smaller be comparatively comfortable to corpusculum severe one), user can be adjusted the layback angle of backrest 9 easily according to the muscle power of oneself, control backrest 9 and stay in the most suitable angle of feeling of stress that health back is produced, thereby layback adjustment process in and backrest 9 is being stabilized in after suitable angle and position, the situation that all there will not be backrest 9 too gently or too to oppress health back pressure.And in the time that user needs backrest 9 to reduce to swing back, only health need be leaned forward slightly, the power that now backrest 9 comes for 3 transmission of balancing activity support component, also user's back reach will be affixed to, make the layback pressure at user back and body weight pressure that user applies add that the current restoring force of elastic component 5 remains on poised state, and in process forward, the restoring force of elastic component 5 reduces, therefore layback pressure also can correspondingly reduce, so, user can easily control the chair back and arbitrarily regulate, and makes its reinstatement or adjusts to the satisfactory angle of user.
Except the advantage of above-mentioned self adaptation user's body weight, because backrest 9 is in the adjustment process of layback, seat support supporting plate 2 is under the fan-shaped track of front end edge of movable supporting parts 3 drives, together with backrest 9 synchronously to back upper place to mobile, thereby the relative distance being arranged between seat support and the backrest 9 on seat support supporting plate 2 can not widened because backrest 9 layback are mobile, and this can effectively be avoided or at least effectively reduce the friction that backrest 9 brings user's health back in layback process.
In the process of rotating forward or backward around its lower sustainer at movable supporting parts 3, the pivotally connected front end of itself and seat support supporting plate 2 drives the respective rear ends of seat support supporting plate 2 to move along fan-shaped track, i.e. also upwards lifting in mobile backward, or also dip when moving forward.The movable supporting plate 4 that is positioned at movable supporting parts 3 fronts provides the supporting force that makes seat support supporting plate 2 balances to the front end of seat support supporting plate 2, the design being connected with seat support supporting plate 2 and pallet main basal base 1 pivoting respectively by the upper and lower end of movable supporting plate 4, movable supporting plate 4 is except can providing this supporting force, can also be in the time that movable supporting parts 3 drive seat support supporting plate 2 to move and movable supporting parts 3 backward or interlock forward, keep synchronizeing with the action of movable supporting parts 3.
As depicted in figs. 1 and 2, in a preferred embodiment, this size to movable supporting plate 4 and meeting in installation site in the time moving backward with seat support supporting plate 2, makes the front end of seat support supporting plate 2 be an angle of inclination of upwards lifting with respect to the rear end of seat support supporting plate 2.The angle of inclination that seat support supporting plate 2 front ends lift will allow user is more stable in the time that backrest 9 is swung back more cosily to take a seat.Those skilled in the art can understand, and the size of movable supporting plate 4 and the installation site at pallet main basal base 1, seat support supporting plate 2 can be according to actual requirement specific designs, to obtain the desirable angle of inclination for difference preference.
As shown in Figure 3, in a preferred embodiment, pallet main basal base 1 and movable supporting parts 3 can be the grooved parts with pair of sidewalls, in the groove that the rear end embedding movable supporting parts 3 of pallet main basal base 1 form, pallet main basal base 1 forms pivoting with the corresponding sidewall of movable supporting parts 3 and connects, the two ends of axle 11 are arranged on respectively in the axis hole of two side of pallet main basal base 1 and movable supporting parts 3, between pallet main basal base 1 and movable supporting plate 4, on the sidewall of pallet main basal base 1, forming pivoting is connected, in the two side of two ends difference tray main basal base 1 and the axis hole of movable supporting plate 4 of axle 13.The counter-lateral quadrents lug that seat support supporting plate 2 is given prominence to downwards by the rear end, bottom of this plate forms pivotings with two sidewalls of movable supporting parts 3 and is connected, and the two ends of axle 12 are arranged on respectively in the axis hole of two sidewalls of this counter-lateral quadrents lug and movable supporting parts 3.Another counter-lateral quadrents lug that seat support supporting plate 2 is given prominence to downwards by the bottom front of this plate forms pivoting with movable supporting plate 4 and is connected, and the two ends of axle 14 are arranged on respectively in the axis hole of this counter-lateral quadrents lug and movable supporting plate 4.In preferred embodiment, the shape of the sidewall of movable supporting parts 3 is obtuse angle obtuse triangle down substantially.
More preferably, between two sidewalls of movable supporting parts 3, be fixed with limit shaft 15, on two sidewalls of pallet main basal base 1, have the stopper slot that shape is consistent with the event trace of movable supporting parts 3, limit shaft 15 also only can be along stopper slot activity through this stopper slot, thereby the slewing area of restraint support component 3, and then the activity point of view of restriction backrest 9.
As shown in Figure 3, in a preferred embodiment, elastic component 5 is torque spring, it can be for example a pair of torsion spring, the main part of torque spring is fixed on the pivot that movable supporting parts 3 are connected with pallet main basal base 1, and the elongated end of torque spring is pressed on the pivot that movable supporting parts 3 are connected with seat support supporting plate 2.
As shown in Figure 1, Figure 2 and Figure 4, Chair underframe can also comprise the locking mechanism being arranged on pallet main basal base 1, and locking mechanism is connected with seat support supporting plate 2 and/or movable supporting parts 3, for locking seat support supporting plate 2 and movable supporting parts 3.
As shown in Figure 4, in a preferred embodiment, locking mechanism comprises screw rod 21, nut 25 and line traffic control assembly, nut 25 is arranged in pallet main basal base 1, screw rod 21 upper ends are connected on the pivot that movable supporting parts 3 are connected with seat support supporting plate 2, relative upper end, lower end is forward, insert in nut 25, there are teeth the part position of screw rod 21 peripheries, there are teeth the part position in 25 interior weeks of nut, in the first rotation position of nut 25, nut 25 engages with the teeth of screw rod 21 and fixes screw rod 21, in the second rotation position of nut 25, thereby nut 25 can free in and out activity with the teeth dislocation screw rod 21 of screw rod 21 in nut 25, line traffic control assembly is connected with nut 25, be used for controlling nut 25 switches between the first rotation position and the second rotation position.
In preferred embodiment, it is flat flat-shaped that the lower end of screw rod 21 is, flat flat face is in the next, left and right sides band teeth, in the first rotation position of nut 25, the teeth of nut 25 be in flat flat relative upper the next, and the internal diameter of the left and right directions of nut 25 is larger than the width of screw rod 21, and nut 25 be the second rotation position of 90 degree angles with the first rotation position, the teeth of nut 25 rotate to the side position being meshed with the left and right sides teeth of screw rod 21, lock screw rod 21.
Adopt above-mentioned locking mechanism, utilize line traffic control 31 can control nut 25 and rotate to different angles, nut 25 can be switched to the state that screw rod 21 is locked, also switch to the movable state that screw rod 21 can be freed in and out in nut 25, thereby, user can or discharge screw rod 21 by line traffic control 31 lock nut 21, and then insert the length in nut 25 and movable supporting parts 3 and seat support supporting plate 2 are locked in place by lock nut 21, or discharge screw rod 21, make movable supporting parts 3 and seat support supporting plate 2 movable, to carry out the adjusting of the layback angle of backrest 9.
As shown in Figure 4, in a specific embodiment, line traffic control assembly comprises line traffic control 31, movable pulling part 28, movable axis 30, torsion spring 27 and nut 25 external members, nut 25 is fixed in nut 25 external members, nut 25 external members have outstanding sidepiece, on sidepiece, there is groove, line traffic control 31 is connected with movable pulling part 28, torsion spring 27 is fixed on movable pulling part 28 by movable axis 30, the elongated end of torsion spring 27 is limited in the groove of sidepiece of nut 25 external members, the flexible of line traffic control 31 driven nut 25 external member rotations and then driven nut 25 to switch between the first rotation position and the second rotation position by movable pulling part 28 and torsion spring 27.
As Figure 1-3, in another specific embodiment, Chair underframe can also comprise the top cover 7 being arranged on pallet main basal base 1, offers the hole slot for elastic component 5 and locking mechanism activity on top cover 7.
In addition, Chair underframe can also comprise the seat lifting adjusting assembly being arranged in pallet main basal base 1, lift adjustment and the location of seat lifting adjusting assembly for realizing seat support.Seat lifting adjusting assembly can adopt the lifting structure of existing Chair underframe to realize, and does not repeat them here.
As shown in Figure 5 and Figure 6, embodiment is on the other hand about a kind of seat, and it comprises seat support 8, backrest 9 and Chair underframe 10, and Chair underframe 10 is connected with backrest 9 and supports seat support 8.Chair underframe 10 can adopt the Chair underframe of aforementioned arbitrary embodiment, does not repeat them here.
'fornt', 'back' is herein all with regard to the forward and backward orientation of seat, and for example, seat support 8 is in front with respect to backrest 9.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a Chair underframe, it is characterized in that, comprise pallet main basal base, seat support supporting plate, movable supporting parts and a pair of movable supporting plate, described seat support supporting plate is arranged on the top of described pallet main basal base, for support seat support, the front end of described movable supporting parts is connected with described seat support supporting plate pivoting, the lower end of described movable supporting parts is connected with described pallet main basal base pivoting, the rear end of described movable supporting parts is for connecting chair backrest, the front end of described movable supporting parts, it can take described lower end as fulcrum pivotable that lower end and rear end are triangle relation and described front end and described rear end, described a pair of movable supporting plate is positioned at the front of described movable supporting parts, each movable supporting plate upper, lower end is connected with described seat support supporting plate and described pallet main basal base pivoting respectively, so that described seat support supporting plate is subject to balanced support when with described movable supporting component movement, on the pivot that described movable supporting parts are connected with described pallet main basal base, the elastic component rotating backward for resisting described movable supporting parts is installed.
2. Chair underframe as claimed in claim 1, it is characterized in that, described elastic component is torque spring, the main part of described torque spring is fixed on the pivot that described movable supporting parts are connected with described pallet main basal base, and the elongated end of described torque spring is pressed on the pivot that described movable supporting parts are connected with described seat support supporting plate.
3. Chair underframe as claimed in claim 1 or 2, it is characterized in that, also comprise the locking mechanism being arranged on pallet main basal base, described locking mechanism is connected with described seat support supporting plate and/or described movable supporting parts, for locking described seat support supporting plate and described movable supporting parts.
4. Chair underframe as claimed in claim 3, it is characterized in that, described locking mechanism comprises screw rod, nut and line traffic control assembly, described nut is arranged in described pallet main basal base, described screw rod upper end is connected on the pivot that described movable supporting parts are connected with described seat support supporting plate, relative upper end, described screw rod lower end is forward and insert described nut, there are teeth the part position of described screw rod periphery, in described nut, there are teeth the part position in week, in the first rotation position of described nut, described nut engages with the teeth of described screw rod and secures the above screw rod, in the second rotation position of described nut, thereby the described screw rod of the teeth of described nut and described screw rod dislocation can free in and out activity in described nut, described line traffic control assembly is connected with described nut, be used for controlling described nut switches between described the first rotation position and described the second rotation position.
5. Chair underframe as claimed in claim 4, it is characterized in that, it is flat flat-shaped that the lower end of described screw rod is, flat flat face is in the next, left and right sides band teeth, in the first rotation position of described nut, the teeth of described nut be in described flat flat relative upper the next, and the internal diameter of the left and right directions of described nut is larger than the width of described screw rod, and be the second rotation position of 90 degree angles at described nut with the first rotation position, the teeth of described nut rotate to the side position being meshed with the left and right sides teeth of described screw rod, lock described screw rod.
6. Chair underframe as claimed in claim 4, it is characterized in that, described line traffic control assembly comprises line traffic control, movable pulling part, movable axis, torsion spring and nut set, described nut is fixed in described nut set, described nut set has outstanding sidepiece, on described sidepiece, there is groove, described line traffic control is connected with described movable pulling part, described torsion spring is fixed on described movable pulling part by described movable axis, the elongated end of described torsion spring is limited in the groove of described sidepiece of described nut set, the flexible of described line traffic control driven described nut set rotation and then driven described nut to switch between described the first rotation position and described the second rotation position by described movable pulling part and described torsion spring.
7. Chair underframe as claimed in claim 4, is characterized in that, also comprises the top cover being arranged on pallet main basal base, offers the hole slot for described elastic component and described locking mechanism activity on described top cover.
8. Chair underframe as claimed in claim 1 or 2, it is characterized in that, described pallet main basal base and described movable supporting parts are the groove shape parts with pair of sidewalls, the rear end of described pallet main basal base embeds in the groove that described movable supporting parts define, between described pallet main basal base and described movable supporting parts, between described pallet main basal base and described a pair of movable supporting plate, all on corresponding sidewall, forming described pivoting connects, the two counter-lateral quadrents lugs that described seat support supporting plate is given prominence to downwards by the bottom by this plate form described pivoting with the sidewall of described a pair of movable supporting plate and described movable supporting parts respectively and are connected.
9. Chair underframe as claimed in claim 1 or 2, it is characterized in that, the size of described a pair of movable supporting plate and installation site meet under the state moving after occurring with described seat support supporting plate, make the front end of described seat support supporting plate be an angle of inclination of upwards lifting with respect to the rear end of described seat support supporting plate.
10. a seat, comprises seat support and backrest, it is characterized in that, also comprises the Chair underframe as described in claim 1 to 9 any one, and described Chair underframe is connected with described backrest and supports described seat support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141952.0U CN203873342U (en) | 2014-03-26 | 2014-03-26 | Chair base plate and chair with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141952.0U CN203873342U (en) | 2014-03-26 | 2014-03-26 | Chair base plate and chair with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203873342U true CN203873342U (en) | 2014-10-15 |
Family
ID=51673910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420141952.0U Expired - Fee Related CN203873342U (en) | 2014-03-26 | 2014-03-26 | Chair base plate and chair with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203873342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876498B (en) * | 2014-03-26 | 2016-08-24 | 汕头市丽时家具有限公司 | Chair underframe and the seat with this Chair underframe |
| CN109640745A (en) * | 2016-07-08 | 2019-04-16 | 高飞模工业有限责任公司 | Leaning device for chair |
-
2014
- 2014-03-26 CN CN201420141952.0U patent/CN203873342U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876498B (en) * | 2014-03-26 | 2016-08-24 | 汕头市丽时家具有限公司 | Chair underframe and the seat with this Chair underframe |
| CN109640745A (en) * | 2016-07-08 | 2019-04-16 | 高飞模工业有限责任公司 | Leaning device for chair |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20141015 Termination date: 20180326 |