A kind of seat and its electromechanical extension device
Technical field
The invention belongs to field of furniture, is related to the seat of a kind of chaise longue, sofa etc., more particularly to the electricity wherein used
Dynamic mechanical extending device.
Background technology
At present, the furniture of many chaise longues, sofa etc. can all be provided with electromechanical extension device, in the electromechanical extension
Backrest, cushion and leg-placing plate be installed, electromechanical extension device is typically the combination of various mechanical fasteners, the machinery on device
Connector is operable to provide various comfortable performances, such as the independent motion that couches of seat assemblies, and can stretch
The actuating of long leg rest assembly and tumbling for related chair frame.Although many conventional chaise longues can be operated satisfactorily,
But furnitur manufacturers still constantly pursue and develop improved chair frame and functional frame, to reduce the complexity of system, to carry
The stationarity of height operation and the comfortableness of occupant.
At present, electromechanical extension apparatus structure is complicated, bulky and very heavy, causes waste, the transport in space
Inconvenience etc..
The content of the invention
In order to solve above-mentioned technical problem, an object of the present invention is to provide a kind of electromechanical extension dress of seat
Put, its structure is improved, to optimize its motion, improve comfortableness, and technique is simple, saves material.
The second object of the present invention is to provide a kind of seat, including above-mentioned electromechanical extension device.
To achieve the above object, present invention employs following technical scheme:
A kind of electromechanical extension device, including fixed seat and the extension assembly and driving group that are arranged in fixed seat
Part, extension assembly include again the leg rest board component that at left and right sides of the fixed seat and left and right is arranged in pairs, cushions support component with
And backrest module, the rear and front end of cushions support component is hinged with leg rest board component and backrest module one end respectively, described
Leg rest board component include leg rest grillage, leg-placing plate connector A, leg-placing plate connector B, leg-placing plate connector C and leg-placing plate
Connector D, described cushions support component include support connector A, support connector B and support connector C, and described leans on
Back of the body component includes backrest connector A and backrest connector B;One end of leg rest grillage and leg-placing plate connector A one end are hinged, and are put
One end of leg plate connector the A other end and leg-placing plate connector D is hinged, the other end and the leg-placing plate connector B of leg rest grillage
One end be hinged, one end of leg-placing plate connector the B other end and leg-placing plate connector C is hinged, leg-placing plate connector A and leg rest
Plate connector C is intersected and is hinged in crossover location, and one end of leg-placing plate connector the C other end and support connector A is cut with scissors
Connect, with supporting connector A stage casing to be hinged, one end of the support connector B connects the leg-placing plate connector D other end with support
Fitting A stage casing is hinged, and the support connector B other end and the front of fixed seat are hinged, support connector C stage casing and support
Connector A stage casing is hinged, and support connector C one end and the rear of fixed seat are hinged, and the support connector C other end is with leaning on
Back of the body connector B one end is hinged, and one end of backrest connector the B other end and backrest connector A is hinged, support connector A's
The other end of the other end and backrest connector A is hinged;Pass through some companies between a pair of extension assemblies being oppositely arranged in left and right
Extension bar connection is synchronized with the movement, and a drive component drive connection bar swing is so as to driving whole device to move.
In this programme, there is provided the drive component of power only has one, and drive component drive connection bar swing, drive is put
Leg board component, cushions support component and backrest module motion, specifically, when leg rest board component reaches its fully unfolded position
Stop, then drive component continues to drive cushions support component to travel forward, and due to the backrest connector A in backrest module and leans on
Carry on the back connector B and support connector A and support connector C composition quadric chains so that drive cushions support component also just
Backrest module motion is driven, optimizes motion structure, meanwhile, the rod member of structure of the present invention is less, simple in construction, small volume, into
This is low.
Preferably, described leg rest grillage, leg-placing plate connector A, leg-placing plate connector B and leg-placing plate connector C
Form quadric chain;Leg-placing plate connector A, leg-placing plate connector C, leg-placing plate connector D and support connector A compositions four
Linkage;Fixed seat, support connector A, support connector B and support connector C composition quadric chains.
Preferably, the leg-placing plate connector D and support connector A pin joint is positioned at support connector A and leg rest
Between plate connector C pin joint and support connector A and the pin joint for supporting connector B.
Preferably, the be hinged leg-placing plate connector E simultaneously on leg-placing plate connector A and leg-placing plate connector B, described
Leg-placing plate connector E is formed with bending.The leg-placing plate connector E is on the one hand to further stable residing double leval jib machine
Structure, on the other hand, the bending on leg-placing plate connector E can prevent the later stage sofa cloth of installation to be jammed, while can hold again
The weight of shank is carried, plays a part of support.
Preferably, the leg-placing plate connector E and leg-placing plate connector A pin joint is located at leg rest grillage and leg-placing plate
Between connector A pin joint and leg-placing plate connector A and leg-placing plate connector C pin joint;The leg-placing plate connector E with
Leg-placing plate connector B pin joint is located at the pin joint and leg-placing plate connector B and leg rest of leg rest grillage and leg-placing plate connector B
Between plate connector C pin joint.
Preferably, being provided with limit shaft A on leg-placing plate connector A, confined planes are correspondingly provided with leg-placing plate connector C
A and confined planes D, limit shaft A realize the limitation to leg-placing plate connector C movement locus.So device is entirely being moved through
Kept in journey stable.
Preferably, being provided with limit shaft B in fixed seat, confined planes B, limit shaft B are correspondingly provided with support connector B
Realize the limitation to supporting connector B movement locus.Device is so caused to keep stable in whole motion process.
Preferably, being provided with limit shaft C on support connector A, confined planes C is correspondingly provided with backrest connector A, is limited
Position axle C realizes the limitation to backrest connector A movement locus.Device is so caused to keep stable in whole motion process.
Preferably, connector A side is supported to be fixedly connected with least two support connection sheets at two.
Preferably, more described connecting rods specifically include connecting rod A, connecting rod B and connecting rod C.
Preferably, synchronously transported by connecting rod A connections between two leg-placing plate connector C that the left and right is oppositely arranged
It is dynamic.
Preferably, described leg-placing plate connector C is fixedly connected with connecting rod A by reinforcing connector.
Preferably, synchronously transported by connecting rod B connections between two support connector B that the left and right is oppositely arranged
It is dynamic.
Preferably, synchronously transported by connecting rod C connections between two support connector C that the left and right is oppositely arranged
It is dynamic.
Above-mentioned drive component can be can any actuating unit that directly or indirectly driving function frame moves forward and backward, it is all
Such as cylinder, motor.Preferably, described drive component includes motor, driving base, driving guide rail and driving
Axle, motor are connected with driving base, drive one end of base to drive the another of base with driving one end of guide rail to be fixedly connected
One end and the rear of fixed seat are hinged, and one end of the drive shaft is slidably socketed and driven from the other end insertion of driving guide rail
In guide rail, the other end of drive shaft is hinged with a wherein connecting rod.
A kind of seat, including electromechanical extension device as described above, two leg rests that described left and right is oppositely arranged
Leg-placing plate is installed, the support connection sheet upper end peace on two cushions support components being oppositely arranged in described left and right on board component
Fill cushion, the upper end installation backrest for two backrest modules that described left and right is oppositely arranged.
The present invention is using the beneficial effect of above-mentioned technical proposal:
Technical scheme of the present invention as a result of more than, is improved to bar linkage structure, reduces the complexity of system,
Optimize its motion and reduce weight and cost, and improve the comfortableness used.
Specifically, the present invention relates to a kind of sofa or the electromechanical extension device of leisure chaise longue, the electromechanical extension
Device includes fixed seat, extension assembly and drive component, drive component come control the closure of sofa mechanical linkage, open and
Lift, whole extension means are simple in construction, specifically, stop when leg rest board component reaches its fully unfolded position, then drive
Dynamic component continues to drive cushions support component movement, due to the backrest connector A in backrest module and backrest connector B and support
Connector A and support connector C composition quadric chains so that drive cushions support component and also just drive backrest module fortune
It is dynamic, reaching the effect of conventional multifunction chair, present invention optimizes motion structure, and rod member is less, simple in construction, volume
Small, cost is low.
Brief description of the drawings
Fig. 1 is the action schematic diagram (closure state) of the extending apparatus of embodiment 1;
Fig. 2 is Fig. 1 dimensional structure diagram;
Fig. 3 is that (intermediateness, only foot rest component are complete open shape for the action schematic diagram of the extending apparatus of embodiment 1
State);
Fig. 4 is Fig. 3 dimensional structure diagram;
Fig. 5 is the action schematic diagram (limiting condition) of the extending apparatus of embodiment 1;
Fig. 6 is Fig. 5 dimensional structure diagram.
Embodiment
The embodiment of the present invention is made a detailed explanation below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in figures 1 to 6, a kind of seat and its electromechanical extension device, a kind of electromechanical extension device, including it is solid
Reservation 1 and the extension assembly being arranged in fixed seat 1 and drive component, extension assembly include being located at fixed seat 1 or so two again
Leg rest board component 2, cushions support component 3 and the backrest module 4 that side and left and right are arranged in pairs, cushions support component 3 it is front and rear
Both ends are hinged with leg rest board component 2 and backrest module 4 one end respectively, described leg rest board component 2 include 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, described cushion
Support component 3 includes support connector A31, support connector B32 and support connector C33, wherein in two support connections
Part A31 side has been fixedly connected with two support connection sheets 311, and described backrest module 4 includes backrest connector A41 and leaned on
Carry on the back connector B42;One end of leg rest grillage 21 and leg-placing plate connector A22 one end are hinged, and leg-placing plate connector A22's is another
One end with leg-placing plate connector D25 is held to be hinged, one end of the other end and leg-placing plate connector B23 of leg rest grillage 21 is hinged,
One end of the leg-placing plate connector B23 other end and leg-placing plate connector C24 is hinged, and leg-placing plate connector A22 and leg-placing plate connect
Fitting C24 intersects and is hinged in crossover location, one end of leg-placing plate connector the C24 other end and support connector A31
Be hinged, the leg-placing plate connector D25 other end is with supporting connector A31 stage casing to be hinged, one end of the support connector B32
With supporting connector A31 stage casing to be hinged, the support connector B32 other end and the front of fixed seat 1 are hinged, and support connector
With supporting connector A31 stage casing to be hinged, support connector C33 one end and the rear of fixed seat 1 are hinged, and are propped up in C33 stage casing
One end of support connector the C33 other end and backrest connector B42 is hinged, and the backrest connector B42 other end is connected with backrest
Part A41 one end is hinged, and the other end of support connector the A31 other end and backrest connector A41 is hinged;Set relatively in left and right
It is synchronized with the movement between a pair of the extension assemblies put by some connecting rod connections, a drive component drive connection bar swing
So as to drive whole device to move.
Specifically, described leg rest grillage 21, leg-placing plate connector A22, leg-placing plate connector B23 and leg-placing plate connect
Fitting C24 forms quadric chain;Leg-placing plate connector A22, leg-placing plate connector C24, leg-placing plate connector D25 and support
Connector A31 forms quadric chain;Fixed seat 1, support connector A31, support connector B32 and support connector C33
Form quadric chain;The leg-placing plate connector D25 and support connector A31 pin joint positioned at support connector A31 with
Between leg-placing plate connector C24 pin joint and support connector A31 and the pin joint for supporting connector B32;Connect in leg-placing plate
On fitting A22 and leg-placing plate connector B23 at the same be hinged leg-placing plate connector E26, described leg-placing plate connector E26 formed with
Bending 261;The leg-placing plate connector E26 and leg-placing plate connector A22 pin joint is located at leg rest grillage 21 and connected with leg-placing plate
Between fitting A22 pin joint and leg-placing plate connector A22 and leg-placing plate connector C24 pin joint;The leg-placing plate connection
Part E26 and leg-placing plate connector B23 pin joint is located at the pin joint and leg-placing plate of leg rest grillage 21 and leg-placing plate connector B23
Between connector B23 and leg-placing plate connector C24 pin joint.
Furthermore, limit shaft A221 is provided with leg-placing plate connector A22, it is right on leg-placing plate connector C24
Confined planes A241 and confined planes D242 should be provided with, limit shaft A221 realizes the limitation to leg-placing plate connector C24 movement locus;
Fixed seat 1 is provided with limit shaft B11, and confined planes B321 is correspondingly provided with support connector B32, and limit shaft B11 is realized to branch
Support the limitation of connector B32 movement locus;Limit shaft C310 is provided with support connector A31, it is right on backrest connector A41
Confined planes C411 should be provided with, limit shaft C310 realizes the limitation to backrest connector A41 movement locus.
Wherein, more connecting rods specifically include connecting rod A5, connecting rod B6 and connecting rod C7, specifically, the left and right
It is synchronized with the movement between two leg-placing plate connector C24 being oppositely arranged by connecting rod A5 connections;Described leg-placing plate connector
C24 is fixedly connected with connecting rod A5 by reinforcing connector 8;Between two support connector B32 that the left and right is oppositely arranged
It is synchronized with the movement by connecting rod B6 connections;By connecting rod C7 between two support connector C33 that the left and right is oppositely arranged
Connection is synchronized with the movement.
Drive component includes motor 9, driving base 10, driving guide rail 11 and drive shaft 12, and motor 9 is with driving
Dynamic base 10 is connected, and drives one end of base 10 to be fixedly connected with one end of driving guide rail 11, drive base 10 the other end and
The rear of fixed seat 1 is hinged, and one end of the drive shaft 12 is slidably socketed and driven from the other end insertion of driving guide rail 11
In guide rail 11, the other end and the connecting rod A5 of drive shaft 12 are hinged.
Secondary spring 13 is provided between support connector A31 and fixed seat 1, under the cooperation of secondary spring 13, is made whole
Individual device is last and close by being raised to stretching, extension, wherein secondary spring 13 assists motor 9 during closure, allows device
Reset.
Secondary spring 13 is provided between support connector A31 and fixed seat 1, under the cooperation of secondary spring 13, is made whole
Individual device is last and close by being raised to stretching, extension, wherein secondary spring 13 assists motor 9 during closure, allows device
Reset.
A kind of seat, including electromechanical extension device as described above, two leg rests that described left and right is oppositely arranged
Leg-placing plate is installed on board component 2, the support connection sheet 311 on two cushions support components 3 being oppositely arranged in described left and right
Upper end is installed by cushion, the upper end installation backrest for two backrest modules 4 that described left and right is oppositely arranged.
Its motion process letter, which is answered for ground, is, starts drive component, first drive component drive connecting rod A5 motion so as to
Drive leg rest board component 2 to move, stop when leg rest board component 2 reaches its fully unfolded position, drive component continues to drive cushion
Support component 3 travels forward, due to the backrest connector A41 in backrest module 4 and backrest connector B42 and support connector
A31 and support connector C33 composition quadric chains, so also having driven backrest module 4 to move simultaneously;In the process of reset
In, leg rest board component 2 resets first, and then cushions support component 3 and backrest module 4 reset simultaneously.
Specifically, in original state (when device closes), limit shaft A221 and leg rest on leg-placing plate connector A22
Confined planes A241 contacts on plate connector C24, support the confined planes B321 on connector B32 to be contacted with limit shaft B11;
In extended configuration, start motor 9, motor 9 promotes drive shaft 12 along driving guide rail 11 to reach
It is dynamic that so as to drive the connecting rod A5 being articulated and connected with drive shaft 12 forward, connecting rod A5 drives leg-placing plate connector C24, from
And drive whole leg rest board component 2 to travel forward, when leg rest board component 2 reaches capacity state, i.e., on leg-placing plate connector A22
Limit shaft A221 contacted with the confined planes D242 on leg-placing plate connector C24, limit shaft A221 realize to leg-placing plate connect
The limitation of part C24 movement locus, the now expansion of leg rest board component 2 stop;Drive shaft 12 continue under the drive of motor 9 to
Preceding motion, connecting rod A5 drive support connector B32 and support connector C33 by driving the active force of leg rest board component 2
And the whole quadric chain where them, now cushions support component 3 moved simultaneously with backrest module 4, when they reach
During its fully unfolded position (limiting condition), now the confined planes C411 on backrest connector A41 and support connector A31's is spacing
Axle C310 is contacted, and lifts stopping.
It is emphasized that:It the above is only presently preferred embodiments of the present invention, not the present invention made any formal
Limitation, every any simple modification, equivalent change and modification for being made to above example of technical spirit according to the present invention,
In the range of still falling within technical solution of the present invention.