CN106820708A - A kind of mechanical extending device and seat unit - Google Patents
A kind of mechanical extending device and seat unit Download PDFInfo
- Publication number
- CN106820708A CN106820708A CN201610818543.3A CN201610818543A CN106820708A CN 106820708 A CN106820708 A CN 106820708A CN 201610818543 A CN201610818543 A CN 201610818543A CN 106820708 A CN106820708 A CN 106820708A
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- China
- Prior art keywords
- connector
- leg
- support
- placing plate
- spacing
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention discloses a kind of mechanical extending device and seat unit, the mechanical extending device includes base, extension assembly and drive component, extension assembly includes leg rest board component again, cushions support component and backrest module, cushions support component includes being constituted with base the support connector A of quadric chain, support connector B and support connector C, support connector A front portions are provided with an inclined extension obliquely, also include a pair of link mechanism, each linkage is suitable to make backrest module when extending apparatus are packed up, leg rest board component can orderly reset；The mechanical extending device passes through to set up the linkage for alloing backrest module, leg rest board component orderly be resetted when extending apparatus are packed up, and bindiny mechanism is rationally set according to the direction of stress, to substitute conventional back-moving spring, extend the service life of drive component, the use of various different crowds can be adapted to, using also more safe and reliable.
Description
Technical field
The present invention generally relates to the motion decoration furniture in the position of substantially sitting supporting user's body, fortune
Dynamic decoration furniture includes chaise longue, arm-chair, sofa, lovers' seat, composite furniture, cinema seat, conventional chair and with removable
The chair of dynamic portions, these furniture are generally termed as " seat unit " herein；More specifically, the invention particularly relates to a kind of machinery
Extending apparatus, in addition, the invention further relates to the seat unit using this kind of mechanical extending device.
Background technology
Existing on current market allows user to stretch footstool or stool couch forward relative to portions and backrest of swinging back backward
Layback seat unit.These existing the commonly provided three kinds of home positions of seat unit：The curling position of the non-layback of standard；Stretch
Put exhibition position；And backward position.In curling position, portions are in generally horizontal orientation and backrest is arranged to substantially upright.
In addition, if seat unit includes being attached with the stool couch of mechanical device, then mechanical device is folded and causes that stool couch does not stretch.Usual
The referred to as extended position of TV (" TV ") position, stool couch stretches to the front of portions, at the same time backrest, and cushion turns round 4 degree
Left and right angle, with ensure seat unit occupant comfort watch TV；In backward position, backrest is fixed backward from extended position
Position into portions into obtuse angle relation for resting or sleep.
The seat unit such as chaise longue or sofa of the various modern in current industry are applied to the above-mentioned adjustment function of offer；For
Expand the use scope of seat unit, improve the usage comfort of seat unit, at present, many seat unit combination motors are carried
For power adjustment, backrest, cushion and leg-placing plate are driven by motor to drive backrest, cushion and leg-placing plate to launch or receive
Hold together, to meet use requirement.
Although many conventional chaise longues can be operated satisfactorily, furnitur manufacturers still constantly pursue to develop and improve
Chair frame and functional frame, so as to reduce system complexity, improve operation stationarity and occupant comfortableness.But
Existing electromechanical extension apparatus structure is complicated, bulky and very heavy, causes the waste in space, transport inconvenient.
Number of patent application is：The Chinese invention patent of " CN201510140431.2 " discloses " a kind of seat and motor
Tool extending apparatus ", the extending apparatus simplify structure, and rod member is less, and simple structure reduces cost, while can reach often again
Advise the using effect of multifunction seat；But the extending apparatus need to hang four secondary springs, under the cooperation of secondary spring, make
Whole device by be raised to stretch it is last close again, wherein secondary spring assists motor during closure, allow device
Resetted according to both gradeds, can't upsetting order, cause cannot normal reset；The effect of motor is in itself to control
The motion of whole device processed and in which final state for whole seat provides support force, but when releasing, there is the power needs of half
Spring force is overcome to do work, therefore this service life on motor has directly influence, and selecting motor
When, it is necessary to consider the influence that spring force size is brought；Furthermore secondary spring in fact, is hung, it is painstaking when hanging, using not yet
Safety, than that can break in use if possible, influences the normal of whole extending apparatus to use, and can also bring safety hidden when serious
Suffer from.
The content of the invention
Instant invention overcomes the deficiency in the presence of above-mentioned prior art, there is provided one kind can meet body weight relatively light or body weight
General crowd, it is not necessary to the mechanical extending device and seat unit that can be resetted freely by spring, the mechanical extending device
By setting up the linkage for alloing backrest module, leg rest board component orderly be resetted when extending apparatus are packed up,
Using more safe and reliable.
Further, invention further provides the mechanical extending device and seat that another can meet all body weight crowds
Chair unit, the mechanical extending device by set up make backrest module, leg rest board component when extending apparatus are packed up can be with orderliness
The linkage that resets of carrying out, and bindiny mechanism is rationally set according to the direction of stress, when heavy force is born
Do not allow to be also easy to produce dead point, fast knot；To substitute conventional back-moving spring, the service life of drive component is extended, can adapt to each
The use of the crowd of kind, using also more safe and reliable.
The technical proposal of the invention is realized in this way：
A kind of mechanical extending device, including base and the extension assembly that is arranged on base and drive component, stretching, extension group
Part includes the leg rest board component, cushions support component and the backrest module that are arranged in pairs positioned at the base left and right sides and left and right again,
The rear and front end of cushions support component is hinged with leg rest board component and backrest module one end respectively, described cushions support group
Part includes support connector A, the support connector B and support connector C with base composition quadric chain, wherein support connects
Fitting A is substantially parallel with base, and support connector A front portions are provided with an inclined extension obliquely, also including a pair substantially
The linkage of mirror image, each linkage is suitable to make when extending apparatus are packed up backrest module, the leg rest board component can be with
Orderly reset, each of which linkage includes：A () crank, the crank rear end is rotatably connected to corresponding support
The front portion of connector A, and upper end is provided with first, second stopper slot in the middle part of crank；B () guides connecting rod, the guiding connecting rod
Rear and front end be pivotally connected with leg rest board component rear end, crank front end respectively；And (c) movable spacing connecting rod, the activity
Spacing connecting rod lower end is pivotally connected with the support connector B upper semisections near leg rest board component, movable spacing connecting rod upper semisection band
There is the first spacer pin, the mounting hole coordinated with the first spacer pin, the first described limit are provided with the extension of support connector A
Position pin is inserted into mounting hole, and in extending apparatus collapsed state and final open mode, the first spacer pin is respectively clamped into first, the
In two stopper slots.
In order that whole extending apparatus motion is freely, preferably, mounting hole is substantially longitudinally disposed, and mounting hole
Diameter of the width more than the first spacer pin.A little gap is left between first limit shaft and kidney-shaped bore edges so that activity is spacing
Connecting rod will not cause to hinder to each joint motions.
Preferably, being provided with the second spacer pin on the extension of support connector A, movable spacing small end carries one
Crotch, in the final open mode of extending apparatus, the second spacer pin is stuck in crotch.Movable spacing connecting rod is so avoided to carry
Gap of first spacer pin in mounting hole produced by the phenomenon that swings, so as to stabilize leg rest board component.
Preferably, the 3rd stopper slot is provided with the middle part lower end of movable spacing connecting rod, in the extension of support connector A
Lower end is provided with safe spacing pin, and when leg rest board component is opened completely, safe spacing pin card enters in the 3rd stopper slot.It is such to set
Putting can prevent crank with guiding connecting rod with fatigue is produced long, and both pivot joint positions come loose and are turned under selling off shape, cause whole
Extending apparatus come loose.
It is engaged the need for adapt to motion and with the first spacer pin, preferably, described crank is a L-shaped connecting rod.
As it is another preferably, invention further provides another mechanical extending device, including base and be arranged on bottom
Extension assembly and drive component on seat, extension assembly include the leg-placing plate being arranged in pairs positioned at the base left and right sides and left and right again
Component, cushions support component and backrest module, the rear and front end of cushions support component respectively with leg rest board component and backrest
One end of component is hinged, and described cushions support component includes support connector A, the support company with base composition quadric chain
Fitting B and support connector C, wherein support connector A is substantially parallel with base, and it is oblique to support connector A front portions to be provided with one
Acclivitous extension, also including a pair linkages of substantially mirror image, each linkage is suitable in extending apparatus
Backrest module, leg rest board component is set orderly to reset when packing up, each of which linkage includes：(a) crank, the song
On the extension that handle rear end is rotatably connected to support accordingly connector A, the upper end outside of described crank is provided with the
One stopper slot；B () guides the rear and front end of connecting rod, the guiding connecting rod to be pivoted with leg rest board component rear end, crank front end respectively
Connection；And (c) movable spacing connecting rod, the movable spacing connecting rod lower end with the support connector B of leg rest board component
Half section is pivotally connected, and movable spacing connecting rod is plugged between the extension of crank and support connector A, movable spacing connecting rod
Upper semisection band limited location mounting hole, the upper end of described movable spacing connecting rod is to backrest module direction bending limited location arc hook, institute
Spacing arc hook is provided with support limit pin on the extension of the support connector A for stating, extending apparatus collapsed state with
Final open mode, the hook end face of spacing arc hook and inner side cambered surface are rotated along support limit pin, and described spacing mounting hole is along living
The length direction of dynamic gag lever post is set with movable gag lever post along same incline direction, the close articulated section of the epimere of crank be provided with
The crank spacer pin that spacing mounting hole coordinates, described crank spacer pin is inserted into spacing mounting hole, is packed up in extending apparatus
State and final open mode, upper end of the crank spacer pin respectively from spacing mounting hole slides into lower end.
Preferably, safe spacing pin is provided with the extension of support connector A, and safe spacing pin and support are limited
On the same straight line parallel with the incline direction of the extension of support connector A, the lower end of described crank corresponds to position pin
Safe spacing pin is provided with the 3rd stopper slot, and in the final open mode of extending apparatus, safe spacing pin card is in the 3rd stopper slot.
Preferably, described crank is a straight connecting rod.
Preferably, the position of crank rear end thereof connection is in the extension and support connector A handing-over position
Between position.
Preferably, described leg rest board component includes leg rest grillage, leg-placing plate connector A, leg-placing plate connector B, puts
Leg plate connector C and leg-placing plate connector D, leg rest grillage is in foremost, one end and the leg-placing plate connector A of leg rest grillage
One end be hinged, the other end and one end of leg-placing plate connector D of leg-placing plate connector A are hinged, the other end of leg rest grillage with
One end of leg-placing plate connector B is hinged, and the other end and one end of leg-placing plate connector C of leg-placing plate connector B are hinged, leg-placing plate
Connector A and leg-placing plate connector C intersect and are hinged in crossover location, and the other end and the support of leg-placing plate connector C connect
The extension front end of fitting A is hinged, and the other end and the extension rear end of support connector A of leg-placing plate connector D are hinged；This
Sample, leg rest grillage, leg-placing plate connector A, leg-placing plate connector B and leg-placing plate connector C composition quadric chain, leg-placing plate
The extension composition quadric chain of connector A, leg-placing plate connector C, leg-placing plate connector D and support connector A.
Preferably, being fixedly connected with a crossbeam between two leg-placing plate connector C, the bottom of drive component is fixed and is set
Put on base, push rod front end and the crossbeam middle part of drive component are hinged.The push rod of drive component is pushed away forward, promotes leg-placing plate group
Part stretches to be opened.
Preferably, the front end of guiding connecting rod was hinged with the second half section of leg-placing plate connector D in leg rest board component.
Preferably, being provided with limit shaft A on leg-placing plate connector A, spacing arc is correspondingly provided with leg-placing plate connector C
Face A and spacing cambered surface B, spacing cambered surface A, spacing cambered surface B are respectively at leg-placing plate connector A and leg-placing plate connector C crosspoints
Both sides, in collapsed state and final open mode, limit shaft A is respectively clamped into spacing cambered surface A or spacing cambered surfaces B to realize to putting
The limitation of leg plate connector C movement locus.
Preferably, backrest module includes backrest connector A, backrest connector B and backrest connector C, support connector C
Upper semisection is hinged with support connector A rear ends, and support connector C upper ends are hinged with backrest connector B lower ends, backrest connector A
With two hinged ends in left and right, backrest connector B upper ends are hinged with the left hinged end of backrest connector A, backrest connector C upper ends
Right hinged end with backrest connector A is hinged, and backrest connector C lower ends are fixedly linked with the support connector A second half sections.
Preferably, being provided with limit shaft B on backrest connector C, it is correspondingly provided with backrest connector A lower surfaces spacing
Face, limit shaft B realizes the limitation to backrest connector A movement locus.
Preferably, described drive component is directly to push away motor or horizontal sliding motor.
A kind of seat unit, including mechanical extending device as described above, in two leg-placing plate groups that left and right is oppositely arranged
Leg-placing plate is housed on part, cushion is housed on two cushions support components that described left and right is oppositely arranged, left and right is oppositely arranged
Two upper ends of backrest module be equipped with backrest.
Employing design starting point of the invention, theory and the beneficial effect of above-mentioned technical proposal is：
The present invention is that linkage is provided with a kind of mechanical extending device so that order can be with when whole device is packed up
According to being normally carried out, will not upset, so as to instead of back-moving spring, make the simpler reliability of whole device, from drive component
Shi Bubi considers further that the influence that spring force brings, and will not reduce the use longevity of drive component because of the presence for having spring again
Life, the thrust of drive component can be played to the supporting role to whole extending apparatus completely, and the assembling of whole extending apparatus is more
Plus it is convenient, using more safe and reliable.
Further, invention further provides another mechanical extending device, linkage is equally provided with, particularly
The Impact direction and stress point of linkage have carried out reasonable setting, spacing between particularly movable spacing connecting rod and crank to match somebody with somebody
Opening or gathering direction of the setting in direction substantially along extending apparatus are closed, therefore does not allow to be also easy to produce extremely when heavy force is born
Point, fast knot, it is relatively reliable.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of mechanical extending device in embodiment 1；
Fig. 2 is that the dimensional structure diagram of another angle of mechanical extending device in Fig. 1 (eliminates one of activity spacing
Connecting rod is exposing whole crank)；
Fig. 3 is schematic perspective view when mechanical extending device is in middle open mode in embodiment 1；
Fig. 4 is that the dimensional structure diagram of another angle of mechanical extending device in Fig. 3 (eliminates one of activity spacing
Connecting rod is exposing whole crank)；
Fig. 5 is schematic perspective view when mechanical extending device is in final open mode in embodiment 1；
Fig. 6 is that the dimensional structure diagram of another angle of mechanical extending device in Fig. 5 (eliminates one of activity spacing
Connecting rod is exposing whole crank).
Fig. 7 is the dimensional structure diagram in embodiment 2 during mechanical extending device rounding state；
Fig. 8 is in schematic perspective view during middle open mode (TV states) for the mechanical extending device of embodiment 2；
Fig. 9 is schematic perspective view when mechanical extending device is in final open mode in embodiment 2；
Specific embodiment
Specific embodiment of the invention is as follows：
The reference azimuth of critical piece of the present invention is defined first, and it is front, backrest that leg rest board component stretches the direction opened
Region residing for component is rear.
Embodiment 1：Present invention firstly provides a kind of mechanical extending device, as shown in figs. 1 to 6, including base 1 and set
Extension assembly and drive component 2 on base 1 are put, extension assembly includes that be located at the left and right sides of base 1 and left and right sets in pairs again
Leg rest board component 3, cushions support component 4 and the backrest module 5 put, base 1 are what four support bars 6a, 6b, 6c, 6d were surrounded
Rectangle frame；The rear and front end of cushions support component 4 is hinged with leg rest board component 3 and backrest module 5 one end respectively, described
Cushions support component includes with support connector A7, the support connector B8 of the composition quadric chain of base 1 and support is connected
Part C9, wherein support connector A7 is substantially parallel with base, and support connector A7 front portions are provided with an inclined extension obliquely
Portion 10, described extension 10 is formed in one with support connector A7.
Specifically, described leg rest board component 3 includes leg rest grillage 21, leg-placing plate connector A22, leg-placing plate connector
B23, leg-placing plate connector C24 and leg-placing plate connector D25, leg rest grillage 21 are in foremost, one end of leg rest grillage 21
One end with leg-placing plate connector A22 is hinged, and the other end of leg-placing plate connector A22 cuts with scissors with one end of leg-placing plate connector D25
Connect, the other end and one end of leg-placing plate connector B23 of leg rest grillage 21 are hinged, the other end of leg-placing plate connector B23 with put
One end of leg plate connector C24 is hinged, and leg-placing plate connector A22 and leg-placing plate connector C24 intersect and in crossover location
It is hinged, the other end and the front end of extension 10 of support connector A7 of leg-placing plate connector C24 are hinged, leg-placing plate connector D25
The other end be hinged with the rear end of extension 10 of support connector A7；So, leg rest grillage 21, leg-placing plate connector A22, leg rest
Plate connector B23 and leg-placing plate connector C24 composition quadric chain, leg-placing plate connector A22, leg-placing plate connector C24,
The composition quadric chain of extension 10 of leg-placing plate connector D25 and support connector A7.
Limit shaft A13 is provided with leg-placing plate connector A22, spacing cambered surface is correspondingly provided with leg-placing plate connector C24
A14 and spacing cambered surface B15, spacing cambered surface A14, spacing cambered surface B15 are respectively at leg-placing plate connector A22 and leg-placing plate connector
The both sides in C24 crosspoints, in collapsed state and final open mode, limit shaft A14 is respectively clamped into spacing cambered surface A14 or spacing arcs
Face B15 is realizing the limitation to leg-placing plate connector C24 movement locus.
Backrest module 5 includes backrest connector A16, backrest connector B17 and backrest connector C18, support connector C9
Upper semisection is hinged with support connector A7 rear ends, and support connector C9 upper ends are hinged with backrest connector B17 lower ends, backrest connection
Part A16 has two hinged ends 19,20 in left and right, and backrest connector B17 upper ends are cut with scissors with the left hinged end 19 of backrest connector A16
Connect, backrest connector C18 upper ends are hinged with the right hinged end 20 of backrest connector A16, backrest connector C18 lower ends connect with support
The fitting A7 second half sections are fixedly linked.Limit shaft B37 is provided with backrest connector C18, it is right on backrest connector A16 lower surfaces
Confined planes 38 should be provided with, limit shaft B37 realizes the limitation to backrest connector A16 movement locus.
A crossbeam 11 is fixedly connected between two leg-placing plate connector C24, the bottom of drive component 2 is fixedly installed on
On base 1, the front end of push rod 12 and the middle part of crossbeam 11 of drive component 2 are hinged.
The drive component 2 can be any engine that can directly or indirectly drive extending apparatus to move forward and backward
Structure, cylinder, directly pushes away motor etc..
Mechanical extending device of the invention also includes a pair linkages of substantially mirror image, and each linkage is suitable to
Backrest module 5, leg rest board component 3 is set orderly to reset when extending apparatus are packed up, each of which linkage includes：
A () crank 26, described crank 26 is a L-shaped connecting rod, the rear end of crank 26 is rotatably connected to corresponding branch
The front portion of support connector A7, and it is provided with first, second stopper slot 27,28 in the middle part upper end of crank 26；
(b) guide connecting rod 29, it is described guiding connecting rod 29 rear and front end respectively with leg rest board component rear end, crank front end pivot
Turn connection, specifically, the front end for guiding connecting rod 29 was hinged with the second half section of leg-placing plate connector D25 in leg rest board component；
(c) movable spacing connecting rod 30, the movable lower end of spacing connecting rod 30 and the support connector near leg rest board component
B8 upper semisections are pivotally connected, and the movable upper semisection of spacing connecting rod 30 carries first spacer pin 31 vertical with itself, are connected in support
The extension 10 of part A7 is provided with the mounting hole 32 coordinated with the first spacer pin 31, and mounting hole is substantially longitudinally disposed, described
The first spacer pin 31 be inserted into mounting hole 32, and mounting hole diameter of the width more than the first spacer pin 31, i.e. mounting hole
A small amount of gap is left with the first spacer pin 31 in 32 both sides；In extending apparatus collapsed state and final open mode, the first spacer pin
31 are respectively clamped into first, second stopper slot 27,28.
Further say, crank 26 is arranged between the extension 10 of movable spacing connecting rod 30 and support connector A7,
The extension 10 of support connector A7 is provided with the second spacer pin 33, and the movable upper end of spacing connecting rod 30 has been bent to form one towards the rear
Crotch 34, in the final open mode of extending apparatus, the second spacer pin 33 is stuck in the hook and slot of crotch 34.
The 3rd stopper slot 35 is provided with the middle part lower end of movable spacing connecting rod 30, under the extension 10 of support connector A7
End is provided with safe spacing pin 36, and when leg rest board component is opened completely, safe spacing pin 36 is snapped in the 3rd stopper slot 35.
The action process of mechanical extending device of the present invention is as follows：
Original state, also referred to as collapsed state, as shown in Figure 1, 2, in this condition, the first spacer pin 31 is stuck in crank 26
The first stopper slot 27 in, can so prevent whole extending apparatus from producing to rock under non-artificial control and wave；Then drive
Component 2 is released obliquely, opens leg rest board component 3, spacing on leg rest board component 3 when leg rest 3 full extension of board component
Axle A13 plays a role and carries out spacing, leg rest board component itself is no longer stretched, and now, crank 26 is in extended configuration, such as Fig. 3
Shown, safe spacing pin 36 is snapped in the 3rd stopper slot 35 just, can so prevent crank 26 tired with producing long with guiding connecting rod
Labor, both pivot joint positions come loose and are turned under selling off shape, cause whole extending apparatus to come loose.
Extended configuration, also referred to as middle open mode, as shown in Figure 3,4, drive component is pushed away further out, due to leg-placing plate
The limit shaft A13 of component itself has played position-limiting action, so that the namely quadric chain swing of cushions support component 4 is simultaneously
Travel forward, and backrest module 5 then shows as the Long-term change trend reclined towards layback, the lower end of movable spacing connecting rod 30 is and branch
Support connector B8 upper semisections are pivotally connected, so movable spacing connecting rod 30 also follows cushions support component movement, make first spacing
Pin 31 is shown as from the downward end motion in the upper end of mounting hole 32, departs from the first stopper slot 27, but because mounting hole 32 is limited activity again
Position connecting rod 30 plays guide effect, so can prevent movable spacing connecting rod 30 from vacillating now to the left, now to the right, makes the first spacer pin 31 according to set
Track motion so as to the switching in first, second stopper slot 27,28.
Recline state, also referred to as final open mode, as shown in Figure 5,6, drive component has been pushed into farthest, at whole device
In the fully extended state, the first spacer pin 31 is in the lower end position of mounting hole 32, due to the crank when cushions support component 4 swings
26 are also moving, so now, the first spacer pin 31 snaps in the second stopper slot 28 of crank, and leg rest board component 3 is supportted
Jail, to be carried out by regular turn when it resets；At the same time, the second spacer pin 33 is fastened on movable spacing connecting rod again
Crotch 34 in, so avoid the first spacer pin 31 that movable spacing connecting rod 30 carries and left and right pendulum produced in mounting hole 32
Dynamic phenomenon, so as to stabilize leg rest board component；
When needing to pack up extending apparatus, control drive component withdraws, and makes cushions support component swing backward, due to work
The first spacer pin 31 that dynamic spacing connecting rod is carried coordinates mounting hole 32 to play a part of guiding, so backrest module 5 resets in advance,
Order will not disorderly fall, and subsequent leg rest board component 3 is also carried out resetting, and the first spacer pin 31 is departed from and snapped in by the second stopper slot 28 again
In first stopper slot 27；From upper narration, there is movable limit because the present invention is provided with linkage, particularly linkage
Position connecting rod carries spacer pin and is engaged with the mounting hole grafting of extension in cushions support component so that secondary when whole device is packed up
Sequence be able to will not be upset according to being normally carried out, and instead of back-moving spring, make the simpler reliability of whole device, from driving group
The influence that spring force brings need not be considered further that during part, the use longevity of drive component will not be reduced because of the presence for having spring again
Life, the thrust of drive component can be played to the supporting role to whole extending apparatus completely, and the assembling of whole extending apparatus is more
Plus it is convenient, using more safe and reliable.
Embodiment 2：
In the embodiment 2 shown in Fig. 7, the technical scheme basic phase of other technologies scheme in embodiment 2 and embodiment 1
Together, difference is：Mechanical extending device of the invention also includes a pair linkages of substantially mirror image, each connecting rod
Mechanism is suitable to allow backrest module 5, leg rest board component 3 orderly reset when extending apparatus are packed up, each of which connecting rod
Mechanism includes：
Each of which linkage includes：
(a) crank, on the extension 10 that the rear end of crank 26 is rotatably connected to support accordingly connector A7, and
The position of the rear end thereof of crank 26 connection is in the centre position that the extension 10 joins position with support connector A7, crank 26
Upper end outside be provided with the first stopper slot 27；
B () guides connecting rod, the rear and front end of the guiding connecting rod 29 respectively with the rear end of leg rest board component 3, the front end of crank 26
It is pivotally connected；And：
(c) movable spacing connecting rod 30, the movable lower end of spacing connecting rod 30 and the support connector near leg rest board component 3
B8 upper semisections are pivotally connected, and movable spacing connecting rod 30 is plugged between the extension 10 of crank 26 and support connector A7,
The activity spacing upper semisection of connecting rod 30 band limited location mounting hole 32b, the upper end of described movable spacing connecting rod 30 is to the side of backrest module 5
To bending limited location arc hook 34b, spacing arc hook 34b is provided with support on the extension 10 of described support connector A7
Spacer pin 31b.
In extending apparatus collapsed state and final open mode, the hook end face of spacing arc hook 34b and inner side cambered surface are along support
Spacer pin 31b is rotated, and described spacing mounting hole 32b is along the length direction of movable gag lever post 30 with activity gag lever post 30 along same
Incline direction is set, and is provided with the crank spacer pin 33b coordinated with spacing mounting hole 32b near articulated section in the epimere of crank 26,
Described crank spacer pin 33b is inserted into spacing mounting hole 32b, bent in extending apparatus collapsed state and final open mode
Upper ends of the handle spacer pin 33b respectively from spacing mounting hole 32b slides into lower end.
Safe spacing pin 36, and safe spacing pin 36 and support limit are provided with the extension 10 of support connector A7
Pin 31b on the same straight line parallel with the incline direction of the extension 10 of support connector A, the lower end pair of described crank 26
Safe spacing pin 36 should be provided with the 3rd stopper slot 35b, in the final open mode of extending apparatus, safe spacing pin 36 is stuck in
In three stopper slot 35b.Specifically, in the present embodiment, crank 26 is a straight connecting rod.
The action process of invention mechanical extending device is as follows in the present embodiment 2：
Original state, also referred to as collapsed state, as shown in fig. 7, in this condition, support limit pin 31b is stuck in crank 26
The first stopper slot 27 in, while the lower end of the intrados of spacing arc hook 34b and support limit pin 31b also clamping by support limit
31b is spacing for pin, and now, crank spacer pin 33b is located at the lower end of spacing mounting hole 32b, can so prevent whole extending apparatus
Produce to rock under non-artificial control and wave；Subsequent drive component 2 is released obliquely, opens leg rest board component 3, treats leg-placing plate
During 3 full extension of component, the limit shaft A13 on leg rest board component 3 plays a role and carries out spacing, makes leg rest board component itself no longer
Stretch, now, crank 26 is in extended configuration, as shown in fig. 7, safe spacing pin 36 is snapped in the 3rd stopper slot 35b just, together
When, crank spacer pin 33b is located at the lower end of spacing mounting hole 32b, and the strong point at two, the support that effectively instead of spring force is made
With, can so prevent crank 26 with guiding connecting rod with fatigue is produced long, both pivot joint positions come loose and are turned under selling off shape, lead
Whole extending apparatus are caused to come loose.
Extended configuration, also referred to as middle open mode, as shown in figure 8, drive component is pushed away further out, due to leg-placing plate group
The limit shaft A13 of part itself has played position-limiting action so that cushions support component 4 namely quadric chain swing and to
Preceding motion, and backrest module 5 then shows as the Long-term change trend reclined towards layback, the lower end of movable spacing connecting rod 30 is and support
Connector B8 upper semisections are pivotally connected, so movable spacing connecting rod 30 also follows cushions support component movement, make crank spacer pin
33b departs from the first stopper slot 27 from the downward end motion in upper end of spacing mounting hole 32b, support limit pin 31b, meanwhile, spacing arc
Hook 34b is slided along support limit pin 31b from lower end to upper surface, because spacing mounting hole 32b is again to movable spacing connecting rod 30
Play guide effect, spacing mounting hole 32b downward upper directions further along first relative to crank spacer pin 33b, so can prevent
The spacing connecting rod 30 of activity is vacillated now to the left, now to the right, and spacing arc hook 34b is moved so as in arc end face and spacing arc hook according to set track
Moved between intrados.
Recline state, also referred to as final open mode, as shown in figure 9, drive component has been pushed into farthest, whole device is in
The fully extended state, the movable forward downward of spacing connecting rod 30 motion, spacing mounting hole 32b is moved by top forward downward, crank
Spacer pin 33b is located at the lower end of spacing mounting hole 32b, due to when cushions support component 4 swings crank 26 also moving,
Now, crank spacer pin 33b is snapped in inside spacing mounting hole 32b, meanwhile, hook end face and the support limit pin of spacing arc hook 34b
Apical grafting, jail is supportted by leg rest board component 3, to be carried out by regular turn when it resets；At the same time, it is to avoid activity
Spacing connecting rod 30 and crank 26 produce the phenomenon for swinging, so as to stabilize leg rest board component.
When needing to pack up extending apparatus, control drive component withdraws, and makes cushions support component swing backward, due to work
The crank alignment pin moved on spacing connecting rod is moved in spacing mounting hole, while spacing mounting hole has the effect being oriented to, it is spacing
Arc hook 34b is moved from bottom to top along support limit pin 31b, so backrest module 5 resets in advance, order will not disorderly fall, then put
Leg board component 3 is also carried out resetting；From upper narration, have because the present invention is provided with linkage, particularly linkage
The spacing connecting rod of activity, crank and the setting matching relationship in cushions support component between extension so that when whole device is packed up
Order be able to will not be upset according to being normally carried out, and instead of back-moving spring, make the simpler reliability of whole device, from driving
The influence that spring force brings need not be considered further that during component, the use of drive component will not be reduced because of the presence for having spring again
Life-span, the thrust of drive component can be played to the supporting role to whole extending apparatus completely, the assembling of whole extending apparatus
More facilitate, using more safe and reliable.
Claims (17)
1. a kind of mechanical extending device, including base and the extension assembly being arranged on base and drive component, extension assembly
Include the leg rest board component, cushions support component and the backrest module that are arranged in pairs positioned at the base left and right sides and left and right again, sit
The rear and front end of advance expenditure support component is hinged with leg rest board component and backrest module one end respectively, described cushions support component
Including the support connector A with base composition quadric chain, support connector B and support connector C, wherein support connection
Part A is substantially parallel with base, and support connector A front portions are provided with an inclined extension obliquely, it is characterized in that：Also include one
To the linkage of substantially mirror image, each linkage is suitable to make backrest module, leg-placing plate group when extending apparatus are packed up
Part can orderly reset, and each of which linkage includes：A () crank, the crank rear end is rotatably connected to accordingly
Support connector A front portion, and upper end is provided with first, second stopper slot in the middle part of crank；B () guides connecting rod, described to draw
The rear and front end for leading connecting rod is pivotally connected with leg rest board component rear end, crank front end respectively；And (c) movable spacing connecting rod, institute
State movable spacing connecting rod lower end to be pivotally connected with the support connector B upper semisections near leg rest board component, on movable spacing connecting rod
Half section carries the first spacer pin, and the mounting hole coordinated with the first spacer pin is provided with the extension of support connector A, described
First spacer pin is inserted into mounting hole, and in extending apparatus collapsed state and final open mode, the first spacer pin is respectively clamped into
In first, second stopper slot.
2. a kind of mechanical extending device according to claim 1, it is characterised in that：Mounting hole is substantially longitudinally disposed,
And the width of mounting hole is more than the diameter of the first spacer pin.
3. a kind of mechanical extending device according to claim 1, it is characterised in that：On the extension of support connector A
The second spacer pin is provided with, movable spacing small end carries a crotch, in the final open mode of extending apparatus, the second spacing pin card
In crotch.
4. a kind of mechanical extending device according to claim 1, it is characterised in that：In the middle part lower end of movable spacing connecting rod
The 3rd stopper slot is provided with, safe spacing pin is provided with the extension lower end of support connector A, opened completely in leg rest board component
When, safe spacing pin card enters in the 3rd stopper slot.
5. a kind of mechanical extending device according to claim 1, it is characterised in that：Described crank is a L-shaped connecting rod.
6. a kind of mechanical extending device, including base and the extension assembly being arranged on base and drive component, extension assembly
Include the leg rest board component, cushions support component and the backrest module that are arranged in pairs positioned at the base left and right sides and left and right again, sit
The rear and front end of advance expenditure support component is hinged with leg rest board component and backrest module one end respectively, described cushions support component
Including the support connector A with base composition quadric chain, support connector B and support connector C, wherein support connection
Part A is substantially parallel with base, and support connector A front portions are provided with an inclined extension obliquely, it is characterized in that：Also include one
To the linkage of substantially mirror image, each linkage is suitable to make backrest module, leg-placing plate group when extending apparatus are packed up
Part can orderly reset, and each of which linkage includes：A () crank, the crank rear end is rotatably connected to accordingly
Support connector A extension on, the upper end outside of described crank is provided with the first stopper slot；B () guides connecting rod, described
The rear and front end of connecting rod is guided to be pivotally connected with leg rest board component rear end, crank front end respectively；And (c) movable spacing connecting rod,
The movable spacing connecting rod lower end is pivotally connected with the support connector B upper semisections near leg rest board component, and activity is spacing
Connecting rod is plugged between the extension of crank and support connector A, movable spacing connecting rod upper semisection band limited location mounting hole, described
Movable spacing connecting rod upper end to backrest module direction bending limited location arc hook, on the extension of described support connector A
Spacing arc hook is provided with support limit pin；In extending apparatus collapsed state and final open mode, the hook of spacing arc hook
End face and inner side cambered surface are rotated along support limit pin, and described spacing mounting hole is limited along the length direction of movable gag lever post with activity
Position bar is set along same incline direction, spacing near the crank that articulated section is provided with spacing mounting hole coordinates in the epimere of crank
Pin, described crank spacer pin is inserted into spacing mounting hole, in extending apparatus collapsed state and final open mode, crank limit
Upper end of the position pin respectively from spacing mounting hole slides into lower end.
7. a kind of mechanical extending device according to claim 6, it is characterised in that：On the extension of support connector A
Safe spacing pin is provided with, and safe spacing pin is put down with support limit pin in the incline direction with the extension of support connector A
On capable same straight line, the lower end of described crank is provided with the 3rd stopper slot corresponding to safe spacing pin, in extending apparatus most
Whole open mode, safe spacing pin card is in the 3rd stopper slot.
8. a kind of mechanical extending device according to claim 6, it is characterised in that：Described crank is a straight connecting rod.
9. a kind of mechanical extending device according to claim 6, it is characterised in that：At the position of crank rear end thereof connection
Join the centre position at position with support connector A in the extension.
10. a kind of mechanical extending device according to claim 1 or 6, it is characterised in that：Described leg rest board component includes
Leg rest grillage, leg-placing plate connector A, leg-placing plate connector B, leg-placing plate connector C and leg-placing plate connector D, leg rest grillage
In foremost, one end and one end of leg-placing plate connector A of leg rest grillage are hinged, the other end of leg-placing plate connector A with put
One end of leg plate connector D is hinged, and the other end and one end of leg-placing plate connector B of leg rest grillage are hinged, leg-placing plate connector B
The other end be hinged with one end of leg-placing plate connector C, leg-placing plate connector A and leg-placing plate connector C intersect and hand over
Vent is put and is hinged, and the other end and the extension front end of support connector A of leg-placing plate connector C are hinged, leg-placing plate connector D's
The other end is hinged with the extension rear end of support connector A；So, leg rest grillage, leg-placing plate connector A, leg-placing plate connector B
And leg-placing plate connector C composition quadric chain, leg-placing plate connector A, leg-placing plate connector C, leg-placing plate connector D and
The extension composition quadric chain of support connector A.
A kind of 11. mechanical extending devices according to claim 10, it is characterised in that：Two leg-placing plate connector C it
Between be fixedly connected with a crossbeam, the bottom of drive component is fixedly installed on base, in the push rod front end of drive component and crossbeam
Portion is hinged.
A kind of 12. mechanical extending devices according to claim 10, it is characterised in that：Guiding the front end of connecting rod is and leg rest
The second half section of leg-placing plate connector D is hinged in board component.
A kind of 13. mechanical extending devices according to claim 10, it is characterised in that：It is provided with leg-placing plate connector A
Limit shaft A, is correspondingly provided with spacing cambered surface A and spacing cambered surface B, spacing cambered surface A, spacing cambered surface B difference on leg-placing plate connector C
Both sides in leg-placing plate connector A and leg-placing plate connector C crosspoints, in collapsed state and final open mode, limit shaft A
Spacing cambered surface A or spacing cambered surfaces B is respectively clamped into realize the limitation to leg-placing plate connector C movement locus.
A kind of 14. mechanical extending device according to claim 1 or 6, it is characterised in that：Backrest module is connected including backrest
Part A, backrest connector B and backrest connector C, support connector C upper semisections are hinged with support connector A rear ends, support connection
Part C upper ends are hinged with backrest connector B lower ends, backrest connector A have left and right two hinged ends, backrest connector B upper ends with
The left hinged end of backrest connector A is hinged, and backrest connector C upper ends are hinged with the right hinged end of backrest connector A, backrest connection
Part C lower ends are fixedly linked with the support connector A second half sections.
A kind of 15. mechanical extending devices according to claim 14, it is characterised in that：Limit is provided with backrest connector C
Position axle B, is correspondingly provided with confined planes on backrest connector A lower surfaces, and limit shaft B is realized to backrest connector A movement locus
Limitation.
A kind of 16. mechanical extending device according to claim 1 or 6, it is characterised in that：Described drive component is directly to push away
Motor or horizontal sliding motor.
A kind of 17. seat units, it is characterized in that：Including the mechanical extending device as described in any one of claim 1~16, on a left side
Leg-placing plate is housed, in two cushions support components that described left and right is oppositely arranged on two leg rest board components that the right side is oppositely arranged
Upper that cushion is housed, two upper ends of backrest module that left and right is oppositely arranged are equipped with backrest.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015109095247 | 2015-12-06 | ||
| CN201510909524 | 2015-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106820708A true CN106820708A (en) | 2017-06-13 |
Family
ID=59146259
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621056360.4U Active CN206342195U (en) | 2015-12-06 | 2016-08-31 | Mechanical extending device and seat unit |
| CN201610818543.3A Withdrawn CN106820708A (en) | 2015-12-06 | 2016-08-31 | A kind of mechanical extending device and seat unit |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621056360.4U Active CN206342195U (en) | 2015-12-06 | 2016-08-31 | Mechanical extending device and seat unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN206342195U (en) |
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| CN107692606A (en) * | 2017-11-20 | 2018-02-16 | 山东汉品健康科技有限公司 | Multifunctional chair and association switching device |
| CN108158260A (en) * | 2017-09-05 | 2018-06-15 | 安吉永艺尚品家具有限公司 | A kind of mechanical extending device and seat unit |
| CN109008403A (en) * | 2018-10-12 | 2018-12-18 | 浙江飞力科技股份有限公司 | The electromechanical extension device of locating part after a kind of band |
| CN109363412A (en) * | 2018-11-21 | 2019-02-22 | 重庆延锋安道拓汽车部件***有限公司 | Household functionality Electric sofa |
| CN109924750A (en) * | 2019-01-08 | 2019-06-25 | 锐迈机械科技（吴江）有限公司 | A kind of sofa extendable bracket and extending apparatus |
| WO2020056572A1 (en) * | 2018-09-18 | 2020-03-26 | 锐迈机械科技（吴江）有限公司 | Sequence control structure and telescopic sofa apparatus |
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| CN113261799A (en) * | 2021-06-21 | 2021-08-17 | 沙剑波 | Extension device for chair for old people |
| WO2021248703A1 (en) * | 2020-06-11 | 2021-12-16 | 永艺家具股份有限公司 | Mechanical extension units and electro-mechanical extension apparatus |
| CN114568875A (en) * | 2020-11-28 | 2022-06-03 | 顾家家居股份有限公司 | Functional sofa mechanical stretching device with foldable foot rest |
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| CN218105374U (en) * | 2022-04-08 | 2022-12-23 | 永艺家具股份有限公司 | Mechanical stretching device and seat connecting structure |
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2016
- 2016-08-31 CN CN201621056360.4U patent/CN206342195U/en active Active
- 2016-08-31 CN CN201610818543.3A patent/CN106820708A/en not_active Withdrawn
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| CN108158260A (en) * | 2017-09-05 | 2018-06-15 | 安吉永艺尚品家具有限公司 | A kind of mechanical extending device and seat unit |
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| CN107692606A (en) * | 2017-11-20 | 2018-02-16 | 山东汉品健康科技有限公司 | Multifunctional chair and association switching device |
| CN107692606B (en) * | 2017-11-20 | 2024-04-12 | 山东汉品健康科技有限公司 | Multifunctional chair and associated switching device |
| WO2020056572A1 (en) * | 2018-09-18 | 2020-03-26 | 锐迈机械科技（吴江）有限公司 | Sequence control structure and telescopic sofa apparatus |
| CN109008403B (en) * | 2018-10-12 | 2023-08-25 | 浙江飞力科技有限公司 | Electromechanical stretching device with rear limiting piece |
| CN109008403A (en) * | 2018-10-12 | 2018-12-18 | 浙江飞力科技股份有限公司 | The electromechanical extension device of locating part after a kind of band |
| CN109363412A (en) * | 2018-11-21 | 2019-02-22 | 重庆延锋安道拓汽车部件***有限公司 | Household functionality Electric sofa |
| CN109363412B (en) * | 2018-11-21 | 2024-03-01 | 安道拓(重庆)汽车部件有限公司 | Household functional electric sofa |
| CN109924750A (en) * | 2019-01-08 | 2019-06-25 | 锐迈机械科技（吴江）有限公司 | A kind of sofa extendable bracket and extending apparatus |
| CN109924750B (en) * | 2019-01-08 | 2024-06-11 | 锐迈科技股份有限公司 | Sofa stretching bracket and stretching device |
| WO2021248703A1 (en) * | 2020-06-11 | 2021-12-16 | 永艺家具股份有限公司 | Mechanical extension units and electro-mechanical extension apparatus |
| CN114568875A (en) * | 2020-11-28 | 2022-06-03 | 顾家家居股份有限公司 | Functional sofa mechanical stretching device with foldable foot rest |
| CN114568875B (en) * | 2020-11-28 | 2024-03-19 | 顾家家居股份有限公司 | Foldable functional sofa mechanical stretching device of foot rest |
| CN112690604B (en) * | 2021-02-05 | 2022-08-02 | 惠州市奥鑫家具有限公司 | Bracket component with anti-pinch protection and stretching enhancement functions for functional sofa and preparation method of bracket component |
| CN112690604A (en) * | 2021-02-05 | 2021-04-23 | 惠州市奥鑫家具有限公司 | Bracket component with anti-pinch protection and stretching enhancement functions for functional sofa and preparation method of bracket component |
| WO2022183997A1 (en) * | 2021-03-02 | 2022-09-09 | 德沃康科技集团有限公司 | Seat bracket and seat |
| CN113261799A (en) * | 2021-06-21 | 2021-08-17 | 沙剑波 | Extension device for chair for old people |
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| CN206342195U (en) | 2017-07-21 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170705 Address after: 313300, No. 3, 1 West art road, Anji County, Zhejiang, Huzhou Applicant after: Anji forever Furniture Co., Ltd. Address before: 313300 Zhejiang County of Anji province handed Yongyi Town Road fan Tan Industrial Park No. 58 Applicant before: ANJI SHANGGONG YONGYI HARDWARE MANUFACTURING CO., LTD. |
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Application publication date: 20170613 |
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| WW01 | Invention patent application withdrawn after publication |