CN106377111A - Sofa folding device and sofa - Google Patents
Sofa folding device and sofa Download PDFInfo
- Publication number
- CN106377111A CN106377111A CN201611092549.3A CN201611092549A CN106377111A CN 106377111 A CN106377111 A CN 106377111A CN 201611092549 A CN201611092549 A CN 201611092549A CN 106377111 A CN106377111 A CN 106377111A
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- rotating shaft
- ratchet
- station
- pawl assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/86—Parts or details specially adapted for beds, sofas or couches not fully covered by any single one of groups A47C17/02 - A47C17/84
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2314/00—Personal or domestic articles, e.g. household appliances such as washing machines, dryers
- F16C2314/70—Furniture
- F16C2314/73—Chairs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a sofa folding device and a sofa, and belongs to the technical field of articles of daily use. The sofa folding device provided by the invention comprises an outer frame, an inner frame, a first rotary shaft, a second rotary shaft, a pawl assembly, an elastic assembly, an inner core limiting plate and a ratchet assembly, wherein the surface, parallel to the shaft axis of the second rotary shaft, of the inner core limiting plate comprises a limiting surface, a blocking surface, a first pushing surface, a first connecting surface, a second pushing surface and a second connecting surface; around the shaft axis of the second rotary shaft, sum of an included angle between connection lines, with shaft axis of the second rotary shaft, of the two ends of the first connecting surface and an included angle between connection lines, with shaft axis of the second rotary shaft, of the two ends of the limiting surfaces is greater than 90 degrees and smaller than or equal to 180 degrees; the second connecting surface is connected with the second pushing surface and the limiting surface; and the distance between the shaft axis of the second rotary shaft and any point of the second connecting surface is smaller than the distance between the shaft axis of the second rotary shaft and the pawl assembly at the first station. The folding device can be folded in multiple angles, and brings convenience to users.
Description
Technical field
The present invention relates to technical field of living goods, especially relate to a kind of sofa folding device and sofa.
Background technology
At present, sofa is indispensable furniture in modern house, and due to current people, to be faced with living space narrow
Situation, common sofa floor space larger it is impossible to meet the living needs of people, so having emerged in large numbers diversified on market
, to meet the living needs of people, wherein, Folding sofa is compact because of volume after folding for sofa, attractive in appearance and be easy to collect and carry
Etc. function, more and more welcomed by the people, such as Folding sofa, Folding sofa can be folded by folding device, makes
Obtain sofa and can be folded into divan for needing the people of rest to be used, expand the range of sofa；
In the prior art, for Folding sofa, the folding of sofa is realized by a kind of folding device, this folding
Stacking device includes inside casing, housing and inner core limiting plate, and the shape due to the inner core limiting plate in this folding device is led with size
Cause the folding angles between the housing in above-mentioned folding device and inside casing to be only the angle of a small amount of kind, be to be insufficient for making
Multiple folding angles needed for user, bring inconvenience to user.
Content of the invention
It is an object of the invention to provide a kind of sofa folding device and sofa, this sofa folding device can fold multiple
Angle, brings convenience to users.
For achieving the above object, the present invention provides technical scheme below：
According to an aspect of the present invention, a kind of sofa folding device is provided, including housing, inside casing, first rotating shaft, second turn
Axle, pawl assembly, elastic parts, inner core limiting plate and ratchet assemblies, wherein：
Described first rotating shaft with described second shaft parallel and is installed on described housing；
Described pawl assembly can be rotatably mounted to described first rotating shaft around the axial line of described first rotating shaft so that described
Pawl assembly can switch between the first station and the second station；
Described elastic parts is arranged between described first rotating shaft and described pawl assembly, to provide for described pawl assembly
Turn to the reset response power in described first station direction by described second station；
Connected by described second rotating shaft between described housing and described inside casing, and described inside casing can be with respect to described housing
Around the axial line rotation of described second rotating shaft, described inside casing is provided with position-arresting part；
Described ratchet assemblies are arranged at described inside casing, and, when described pawl assembly is in described first station with described
Ratchet assemblies engage, and are disengaged from described ratchet assemblies when described pawl assembly is in described second station；
Described inner core limiting plate is provided with via, and described second rotating shaft passes through described via so that described inner core limiting plate can phase
Described inside casing and described housing are rotated around the axial line of described second rotating shaft；And described inner core limiting plate and described second
The surface of the axis parallel of rotating shaft includes：
When coordinating, described pawl assembly is limited in the confined planes of described second station with described pawl assembly；
Prevent the excessive block face of described inner core limiting plate rotation when described inner core limiting plate moves into place；
First pushing surface, the first joint face and the second pushing surface, described first pushing surface is relative with described second pushing surface, and described first
Joint face be located at be connected between described first pushing surface and described second pushing surface and with described first pushing surface and described second pushing surface with
Form the depression of one and described position-arresting part cooperation, described position-arresting part is coordinated with described first pushing surface and described second pushing surface to push away
Move described inner core limiting plate action；Around the axial line of described second rotating shaft, described first joint face two ends and described second rotating shaft
Between axial line, between the angle of line and described confined planes two ends and described second rotating shaft core line, the angle sum of line is big
In 90 ° and less than or equal to 180 °；
Second joint face, described second joint face is connected with described second pushing surface and described confined planes, and described second
Between the axial line of rotating shaft and described second joint face the distance of any point be less than described second rotating shaft axial line be in
The distance between described pawl assembly of described first station.
Further, described housing includes the first connecting plate being oppositely arranged and the second connecting plate；
Along perpendicular to the direction of described first connecting plate and described second connecting plate, described first rotating shaft sequentially passes through described
First connecting plate, described pawl assembly, described elastic parts and described second connecting plate so that described first connecting plate with described
Second connecting plate is fixedly connected, described pawl assembly can rotate around the axial line of described first rotating shaft and described elastic parts is
Described pawl assembly provides the reset response power being turned to described first station direction by described second station.
Further, described inside casing includes the 3rd connecting plate being oppositely arranged and the 4th connecting plate, described 3rd connecting plate
And/or it is provided with described ratchet assemblies on described 4th connecting plate；
Along perpendicular to the direction of described 3rd connecting plate and described 4th connecting plate, described second rotating shaft sequentially passes through described
3rd connecting plate, described via and described 4th connecting plate are so that described 3rd connecting plate is fixing with described 4th connecting plate even
Connect, engage with described ratchet assemblies when described pawl assembly is in described first station, when described pawl assembly be in described
Be disengaged from described ratchet assemblies during the second station, described inner core limiting plate can with respect to described inside casing and described housing around
The axial line rotation of described second rotating shaft.
Further, described pawl assembly includes a ratchet, on described 3rd connecting plate and described 4th connecting plate all
It is provided with described ratchet assemblies, described ratchet assemblies include multiple ratchets.
Further, described ratchet includes boss and handgrip, and described handgrip is arranged on described boss, and described boss sets
Be equipped with circular hole, described first rotating shaft pass through described circular hole so that described boss can around described first rotating shaft axial line rotate and
When described ratchet is in described first station with described ratchet engagement, when described ratchet is in described second station with described
Ratchet is disengaged from.
Further, described ratchet is triangular shaped ratchet.
Further, described position-arresting part is placed between described 3rd connecting plate and the 4th connecting plate, and described position-arresting part
Side is connected with described 3rd connecting plate, and opposite side is connected with described 4th connecting plate.
Further, described elastic component is spring, and one end of described spring contacts connection with described pawl assembly, another
End contacts connection with described inside casing.
Further, described first rotating shaft is the first rivet, and described second rotating shaft is the second rivet.
According to a further aspect in the invention, provide a kind of sofa, the sofa folding device providing including technique scheme.
Compared with prior art, beneficial effects of the present invention are：
According to the sofa folding device of the present invention, including housing, inside casing, first rotating shaft, the second rotating shaft, pawl assembly, bullet
Property assembly, inner core limiting plate and ratchet assemblies, wherein：First rotating shaft with the second shaft parallel and is installed on housing；Ratchet group
Part can be rotatably mounted to first rotating shaft around the axial line of first rotating shaft so that pawl assembly can be in the first station and the second station
Between switch；Elastic parts is arranged between first rotating shaft and pawl assembly, to provide by the second station steering for pawl assembly
The reset response power in the first station direction；Between housing and inside casing pass through second rotating shaft connect, and inside casing can with respect to housing around
The axial line rotation of the second rotating shaft, inside casing is provided with position-arresting part；Ratchet assemblies are arranged inside casing, and, when pawl assembly is in
Engage with ratchet assemblies during one station, be disengaged from ratchet assemblies when pawl assembly is in the second station；Inner core limiting plate
Be provided with via, the second rotating shaft pass through via so that inner core limiting plate can with respect to inside casing and housing around the second rotating shaft axial line
Rotation；And inner core limiting plate is included with the surface of the axis parallel of the second rotating shaft：By pawl assembly when coordinating with pawl assembly
It is limited in the confined planes of the second station；Prevent the excessive block face of inner core limiting plate rotation when inner core limiting plate moves into place；The
One pushing surface, the first joint face and the second pushing surface, the first pushing surface is relative with the second pushing surface, and the first joint face is located at the first pushing surface and the
It is connected to form the depression of one and position-arresting part cooperation between two pushing surfaces and with the first pushing surface and the second pushing surface, position-arresting part pushes away with first
Face and the second pushing surface coordinate to promote inner core limiting plate action；Around the axial line of the second rotating shaft, the first joint face two ends and the
Between two rotating shaft core lines, between the angle of line and confined planes two ends and the second rotating shaft core line, the angle sum of line is more than
90 ° and be less than or equal to 180 °；Second joint face, the second joint face is connected with the second pushing surface and confined planes, and the second rotating shaft
Between axial line and the second joint face, the distance of any point is less than the axial line of the second rotating shaft and the ratchet being in the first station
The distance between assembly；When being folded, inside casing rotates around the axial line of the second rotating shaft this device with respect to housing, ratchet group
Part has two stations, and when pawl assembly is in the first station, the ratchet assemblies being arranged on inside casing are engaged with pawl assembly, spine
Tooth assembly and pawl assembly engaged transmission so that pawl assembly is to the second station, when pawl assembly is in the second station and spine
Tooth assembly is disengaged from, because elastic parts provides reset response power so that pawl assembly is turned by the second station for pawl assembly
To, by the reciprocating motion of pawl assembly so that the angle between inside casing and housing gradually less and can by once engaging or
The multiple engagement of person enables this folding device to fold multiple angles, and in folding process, confined planes are spacing by pawl assembly
In the second station, when inner core limiting plate moves into place, block face prevents inner core limiting plate from rotating excessive, the first joint face and first
Pushing surface and the second pushing surface connect the depression forming one and position-arresting part cooperation, position-arresting part and the first pushing surface and the cooperation of the second pushing surface
Promote inner core limiting plate action, the angle of line and confined planes two ends between the first joint face two ends and the axial line of the second rotating shaft
The angle sum of line is more than 90 ° and is less than or equal to 180 ° and the second rotating shaft core line between, the axial line of the second rotating shaft and the
Between two joint faces, the distance of any point is less than between axial line and the pawl assembly being in the first station of the second rotating shaft
Distance is it is ensured that the angle between inside casing and housing can be folded between 0 degree to 180 degree.
Brief description
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
In embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe in
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of sofa folding device provided in an embodiment of the present invention；
Fig. 2 is the exploded view of the structural representation of sofa folding device provided in an embodiment of the present invention；
Fig. 3 is the front view of the structural representation of inner core limiting plate of sofa folding device provided in an embodiment of the present invention；
Fig. 4 is the front view of the structural representation of the 3rd connecting plate of sofa folding device provided in an embodiment of the present invention.
Icon：1- housing；11- first connecting plate；12- second connecting plate；2- inside casing；21- the 3rd connecting plate；22- the 4th
Connecting plate；3- first rotating shaft；4- second rotating shaft；5- ratchet；51- boss；52- handgrip；6- spring；7- inner core limiting plate；71- mistake
Hole；8- ratchet；9- position-arresting part；10- confined planes；11- block face；12- first pushing surface；13- first joint face；14- second pushing surface；
15- is recessed；16- second joint face.
Specific embodiment
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described with the enforcement it is clear that described
Example is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplify description, rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
According to an aspect of the present invention, provide a kind of sofa folding device, as depicted in figs. 1 and 2, including housing 1, interior
Frame 2, first rotating shaft 3, the second rotating shaft 4, pawl assembly, elastic parts, inner core limiting plate 7 and ratchet assemblies, wherein：
First rotating shaft 3 is parallel with the second rotating shaft 4 and is installed on housing 1；
Pawl assembly can be rotatably mounted to first rotating shaft 3 around the axial line of first rotating shaft 3 so that pawl assembly can be
Switch between one station and the second station；
Elastic parts is arranged between first rotating shaft 3 and pawl assembly, to provide by the second station steering for pawl assembly
The reset response power in the first station direction；
Connected by the second rotating shaft 4 between housing 1 and inside casing 2, and inside casing 2 can with respect to housing 1 around the second rotating shaft 4 axle
Heart line rotates, and inside casing 2 is provided with position-arresting part 9；
Ratchet assemblies are arranged inside casing 2, and, engage with ratchet assemblies when pawl assembly is in the first station, work as ratchet
Assembly is in and is disengaged from ratchet assemblies during the second station；
Inner core limiting plate 7 is provided with via 71, and the second rotating shaft 4 passes through via 71 so that inner core limiting plate 7 can be with respect to inside casing 2
And housing 1 rotates around the axial line of the second rotating shaft 4；And the surface bag of the axis parallel of inner core limiting plate 7 and the second rotating shaft 4
Include：
When coordinating, pawl assembly is limited in the confined planes 10 of the second station with pawl assembly；
As shown in figure 3, prevent inner core limiting plate 7 from rotating excessive block face 11 when inner core limiting plate 7 moves into place；
First pushing surface 12, the first joint face 13 and the second pushing surface 14, the first pushing surface 12 is relative with the second pushing surface 14, and first even
Junction 13 be located at be connected between the first pushing surface 12 and the second pushing surface 14 and with the first pushing surface 12 and the second pushing surface 14 with formed one with
The depression 15 of position-arresting part 9 cooperation, position-arresting part 9 and the first pushing surface 12 and the second pushing surface 14 coordinate to promote inner core limiting plate 7 to move
Make；Around the axial line of the second rotating shaft 4, the angle of line and limit between the axial line of the first joint face 13 two ends and the second rotating shaft 4
Between the axial line of plane 10 two ends and the second rotating shaft 4, the angle sum of line is more than 90 ° and is less than or equal to 180 °；
Second joint face 16, the second joint face 16 is connected with the second pushing surface 14 and confined planes 10, and the axle of the second rotating shaft 4
Between heart line and the second joint face 16, the distance of any point is less than the axial line of the second rotating shaft 4 and the ratchet being in the first station
The distance between assembly.
According to the sofa folding device of the present invention, when being folded, inside casing 2 is with respect to housing 1 around second turn for this device
The axial line rotation of axle 4, pawl assembly has two stations, when pawl assembly is in the first station, is arranged on the spine of inside casing 2
Tooth assembly is engaged with pawl assembly, and ratchet assemblies and pawl assembly engaged transmission are so that pawl assembly, to the second station, works as ratchet
Assembly is in and is disengaged from ratchet assemblies during the second station, because elastic parts provides reset response power for pawl assembly, makes
Pawl assembly is turned to by the second station, by the reciprocating motion of pawl assembly so that angle between inside casing 2 and housing 1 by
Gradually less and can be folded over by once engaging or multiple engagement enables this folding device to fold multiple angles
Cheng Zhong, pawl assembly is limited in the second station by confined planes 10, and when inner core limiting plate 7 moves into place, block face 11 prevents inner core from limiting
Position plate 7 rotate excessive, the first joint face 13 is connected with the first pushing surface 12 and the second pushing surface 14 formed one and position-arresting part 9 coordinate
Depression 15, position-arresting part 9 and the first pushing surface 12 and the second pushing surface 14 cooperation promote inner core limiting plate 7 action, the first joint face 13
Connect between the axial line of the angle of line and confined planes 10 two ends and the second rotating shaft 4 between the axial line of two ends and the second rotating shaft 4
The angle sum of line is more than 90 ° and is less than or equal to 180 °, any point between the axial line of the second rotating shaft 4 and the second joint face 16
Distance be less than the distance between axial line and the pawl assembly being in the first station of the second rotating shaft 4 it is ensured that inside casing 2 with outer
Angle between frame 1 can be folded between 0 ° to 180 °.
According to a kind of embodiment of sofa folding device of the present invention, housing 1 includes the first connecting plate 11 being oppositely arranged
With the second connecting plate 12；
Along perpendicular to the direction of the first connecting plate 11 and the second connecting plate 12, first rotating shaft 3 sequentially passes through the first connecting plate
11st, pawl assembly, elastic parts and the second connecting plate 12 so that the first connecting plate 11 be fixedly connected with the second connecting plate 12, ratchet
Assembly can rotate around the axial line of first rotating shaft 3 and elastic parts provides for pawl assembly and turns to the first station by the second station
The reset response power in direction.
According to the sofa folding device of the present invention, the first connecting plate 11 and the second connecting plate 12 pass through the first rivet and fix even
Connect, between the first connecting plate 11 and the second connecting plate 12, form certain space, ratchet 5 and spring 6 are placed in above-mentioned space,
From the direction of first connecting plate the 11 to the second connecting plate 12, the first rivet is connected with ratchet 5, spring 6 successively, and wherein, ratchet 5 is
Including boss 51 and handgrip 52, boss 51 is provided with circular hole, the first rivet is connected to guarantee through above-mentioned circular hole with boss 51
Boss 51 can rotate around the axial line of first rotating shaft 3；Wherein, the first connecting plate 11 is identical with the structure of the second connecting plate 12.
According to a kind of embodiment of sofa folding device of the present invention, as shown in figure 4, inside casing 2 includes being oppositely arranged
Three connecting plates 21 and the 4th connecting plate 22, the 3rd connecting plate 21 and/or the 4th connecting plate 22 are provided with ratchet assemblies；
Along perpendicular to the direction of the 3rd connecting plate 21 and the 4th connecting plate 22, the second rotating shaft 4 sequentially passes through the 3rd connecting plate
21st, via 71 with the 4th connecting plate 22 so that the 3rd connecting plate 21 is fixedly connected with the 4th connecting plate 22, is in when pawl assembly
Engage with ratchet assemblies during the first station, be disengaged from ratchet assemblies when pawl assembly is in the second station, inner core spacing
Plate 7 can rotate around the axial line of the second rotating shaft 4 with respect to inside casing 2 and housing 1.
According to the sofa folding device of the present invention, the 3rd connecting plate 21 and the 4th connecting plate 22 are placed in the first connecting plate 11 He
In the certain space that second connecting plate 12 is formed, and it has been similarly formed certain between the 3rd connecting plate 21 and the 4th connecting plate 22
Space, the first connecting plate 11, the second connecting plate 12, the 3rd connecting plate 21 are fixedly connected by the second rivet with the 4th connecting plate 22
So that the inside casing 2 that the 3rd connecting plate 21 and the 4th connecting plate 22 are formed is formed with the second connecting plate 12 with respect to the first connecting plate 11
Housing 1 rotate, inner core limiting plate 7 is placed in the certain space that the 3rd connecting plate 21 and the 4th connecting plate 22 are formed and with the
Two rivet interlacement are so that inner core limiting plate 7 rotates around the second rivet；
Wherein, the 3rd connecting plate 21 is identical with the structure of the 4th connecting plate 22, the 3rd connecting plate 21 and the 4th connecting plate 22
On be respectively provided with ratchet assemblies, each ratchet assemblies includes multiple ratchets 8, can also be for arranging ratchet group on the 3rd connecting plate 21
Part, can also be for arranging ratchet assemblies on the 4th connecting plate 22, the second rivet is ensureing that inside casing 2 is same with respect to what housing 1 rotated
When, ratchet 8 also to be ensured is engaged with handgrip 52.
According to a kind of embodiment of sofa folding device of the present invention, pawl assembly includes a ratchet 5, the 3rd connecting plate
21 and the 4th are provided with ratchet assemblies on connecting plate 22, and ratchet assemblies include multiple ratchets 8, and ratchet 8 is triangular shaped ratchet.
According to the sofa folding device of the present invention, this sofa folding device employs a ratchet 5 and the 3rd connecting plate
21 and the 4th connecting plate 22 be provided with ratchet assemblies, two ratchet assemblies are all interacted with ratchet 5, wherein, ratchet assemblies
In ratchet 8 be triangular shaped ratchet, ratchet assemblies are made using triangular shaped ratchet preferable with the ratchet 5 being in during the first station
Engagement.
According to a kind of embodiment of sofa folding device of the present invention, ratchet 5 includes boss 51 and handgrip 52, and handgrip 52 sets
Put on boss 51, boss 51 is provided with circular hole, first rotating shaft 3 passes through circular hole so that boss 51 can be around the axle of first rotating shaft 3
Heart line is rotated and is engaged with ratchet 8 when ratchet 5 is in the first station, departs from ratchet 8 when ratchet 5 is in the second station
Engagement.
According to a kind of embodiment of sofa folding device of the present invention, position-arresting part 9 is placed in the 3rd connecting plate 21 and the 4th and connects
Between fishplate bar 22, and the side of position-arresting part 9 is connected with the 3rd connecting plate 21, and opposite side is connected with the 4th connecting plate 22.
According to the sofa folding device of the present invention, set in the certain space that the 3rd connecting plate 21 is formed with the 4th connecting plate 22
It is equipped with position-arresting part 9, position-arresting part 9 can be connected with the 3rd connecting plate 21 and the 4th connecting plate 22 or only be connected with the 3rd
Plate 21 connects.
According to a kind of embodiment of sofa folding device of the present invention, elastic component is spring 6, one end of spring 6 and spine
Claw assembly contact connects, and the other end contacts connection with inside casing 2.
According to the sofa folding device of the present invention, one end of spring 6 is contacted with boss 51, the other end and the first connecting plate
11 or second connecting plate 12 contact, the purpose that spring 6 is contacted with boss 51 be for boss 51 provide a support force, when
When boss 51 is in the second station, now boss 51 and ratchet 8 are disengaged from, and spring 6 provides a support force for boss 51, makes
Obtain boss 51 to recover to the first station from the second station, so that boss 51 continues to engage with ratchet 8 in the first station；
Spring 6 is contacted the purpose connecting and is that borrowing external force thinks more preferable support rim with the first connecting plate 11 or the second connecting plate 12
51.
According to a kind of embodiment of sofa folding device of the present invention, first rotating shaft 3 is the first rivet, and the second rotating shaft 4 is
Second rivet.
According to the sofa folding device of the present invention, according to a further aspect in the invention, provide a kind of sofa, including above-mentioned skill
The sofa folding device that art scheme provides.
In sum, the optional many factors of sofa folding device according to the present invention.Can according to the claim of the present invention
To be combined into multiple embodiments, the technical scheme therefore being gone out according to the claim combinations of the present invention is all in the protection of the present invention
Within the scope of.Below in conjunction with specific embodiments sofa folding device of the present invention is further described through.
Embodiment 1
According to the sofa folding device of the present invention, including housing 1, inside casing 2, first rotating shaft 3, the second rotating shaft 4, ratchet group
Part, elastic parts, inner core limiting plate 7, ratchet assemblies, elastic parts and position-arresting part 9, housing 1 includes first being oppositely arranged
Connecting plate 11 and the second connecting plate 12, inside casing 2 includes the 3rd connecting plate 21 being oppositely arranged and the 4th connecting plate 22, pawl assembly
For a ratchet 5, ratchet 5 includes boss 51 and handgrip 52, the 3rd connecting plate 21 and the 4th connecting plate 22 is provided with ratchet
Assembly, ratchet assemblies include multiple ratchets 8, and elastic parts is spring 6, the axis parallel of inner core limiting plate 7 and the second rotating shaft 4
Surface include confined planes 10, block face 11, the first pushing surface 12, the first joint face 13, the second pushing surface 14, depression 15, second connection
Face 16；
, when being folded, the inside casing 2 of the 3rd connecting plate 21 and the 4th connecting plate 22 formation is with respect to first even for this device
The housing 1 of fishplate bar 11 and the second connecting plate 12 formation rotates around the axial line of the second rotating shaft 4, and ratchet 5 has two stations, works as spine
When pawl 5 is in the first station, it is arranged on the 3rd connecting plate 21 and the ratchet assemblies of the 4th connecting plate 22 are engaged with ratchet 5, ratchet 8
With handgrip 52 engaged transmission on ratchet 5 so that ratchet 5 to the second station, take off with ratchet 8 when ratchet 5 is in the second station
From engagement, because spring 6 provides reset response power so that ratchet 5 is turned to by the second station for ratchet 5, reciprocal by ratchet 5
Motion is so that the angle between inside casing 2 and housing 1 is gradually less and can be by once engaging or repeatedly engagement make this folding
Stacking device can fold multiple angles, and in folding process, ratchet 5 is limited in the second station by confined planes 10, spacing in inner core
When plate 7 moves into place, it is excessive that block face 11 prevents inner core limiting plate 7 from rotating, the first joint face 13 and the first pushing surface 12 and second
Pushing surface 14 connects the depression 15 forming one and position-arresting part 9 cooperation, and position-arresting part 9 is pushed away with the first pushing surface 12 and the second pushing surface 14 cooperation
The action of dynamic inner core limiting plate 7, the angle of line and confined planes 10 between the axial line of the first joint face 13 two ends and the second rotating shaft 4
Between the axial line of two ends and the second rotating shaft 4, the angle sum of line is more than 90 ° and is less than or equal to 180 °, the axle of the second rotating shaft 4
Between heart line and the second joint face 16, the distance of any point is less than the axial line of the second rotating shaft 4 and the ratchet being in the first station
The distance between assembly.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to invention with reference to foregoing embodiments, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is carried out
Equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technical side
The scope of case.
Claims (10)
1. a kind of sofa folding device is it is characterised in that include housing, inside casing, first rotating shaft, the second rotating shaft, pawl assembly, bullet
Property assembly, inner core limiting plate and ratchet assemblies, wherein：
Described first rotating shaft with described second shaft parallel and is installed on described housing；
Described pawl assembly can be rotatably mounted to described first rotating shaft around the axial line of described first rotating shaft so that described ratchet
Assembly can switch between the first station and the second station；
Described elastic parts is arranged between described first rotating shaft and described pawl assembly, to provide by institute for described pawl assembly
State the reset response power that the second station turns to described first station direction；
Connected by described second rotating shaft between described housing and described inside casing, and described inside casing can be with respect to described housing around institute
State the axial line rotation of the second rotating shaft, described inside casing is provided with position-arresting part；
Described ratchet assemblies are arranged at described inside casing, and, when described pawl assembly is in described first station with described ratchet
Assembly engages, and is disengaged from described ratchet assemblies when described pawl assembly is in described second station；
Described inner core limiting plate is provided with via, and described second rotating shaft passes through described via so that described inner core limiting plate can be with respect to
Described inside casing and described housing rotate around the axial line of described second rotating shaft；And described inner core limiting plate and described second rotating shaft
The surface of axis parallel include：
When coordinating, described pawl assembly is limited in the confined planes of described second station with described pawl assembly；
Prevent the excessive block face of described inner core limiting plate rotation when described inner core limiting plate moves into place；
First pushing surface, the first joint face and the second pushing surface, described first pushing surface is relative with described second pushing surface, described first connection
Face is located at and is connected to be formed between described first pushing surface and described second pushing surface and with described first pushing surface and described second pushing surface
One depression coordinating with described position-arresting part, described position-arresting part is coordinated with described first pushing surface and described second pushing surface to promote
State inner core limiting plate action；Around the axial line of described second rotating shaft, the axle of described first joint face two ends and described second rotating shaft
Between heart line, between the angle of line and described confined planes two ends and described second rotating shaft core line, the angle sum of line is more than
90 ° and be less than or equal to 180 °；
Second joint face, described second joint face is connected with described second pushing surface and described confined planes, and described second rotating shaft
Axial line and described second joint face between any point distance be less than the axial line of described second rotating shaft be in described
The distance between described pawl assembly of first station.
2. sofa folding device according to claim 1 is it is characterised in that described housing includes the first company being oppositely arranged
Fishplate bar and the second connecting plate；
Along perpendicular to the direction of described first connecting plate and described second connecting plate, described first rotating shaft sequentially passes through described first
Connecting plate, described pawl assembly, described elastic parts and described second connecting plate are so that described first connecting plate and described second
Connecting plate is fixedly connected, described pawl assembly can rotate around the axial line of described first rotating shaft and described elastic parts is described
Pawl assembly provides the reset response power being turned to described first station direction by described second station.
3. sofa folding device according to claim 2 is it is characterised in that described inside casing includes the 3rd company being oppositely arranged
Fishplate bar and the 4th connecting plate, described 3rd connecting plate and/or described 4th connecting plate are provided with described ratchet assemblies；
Along perpendicular to the direction of described 3rd connecting plate and described 4th connecting plate, described second rotating shaft sequentially passes through the described 3rd
Connecting plate, described via with described 4th connecting plate so that described 3rd connecting plate be fixedly connected with described 4th connecting plate, when
Described pawl assembly is in and is engaged with described ratchet assemblies during described first station, when described pawl assembly is in described second work
It is disengaged from described ratchet assemblies during position, described inner core limiting plate can be with respect to described inside casing and described housing around described the
The axial line rotation of two rotating shafts.
4. sofa folding device according to claim 3 is it is characterised in that described pawl assembly includes a ratchet, institute
State and be provided with described ratchet assemblies on the 3rd connecting plate and described 4th connecting plate, described ratchet assemblies include multiple ratchets.
5. sofa folding device according to claim 4 is it is characterised in that described ratchet includes boss and handgrip, described
Handgrip is arranged on described boss, and described boss is provided with circular hole, and described first rotating shaft passes through described circular hole so that described convex
Platform can around described first rotating shaft axial line rotate and when described ratchet is in described first station with described ratchet engagement,
It is disengaged from described ratchet when described ratchet is in the second station.
6. according to claim 5 sofa folding device it is characterised in that described ratchet be triangular shaped ratchet.
7. according to claim 3 sofa folding device it is characterised in that described position-arresting part be placed in described 3rd connecting plate and
Between 4th connecting plate, and the side of described position-arresting part is connected with described 3rd connecting plate, opposite side and described 4th connecting plate
Connect.
8. according to claim 1 sofa folding device it is characterised in that described elastic component be spring, described spring
One end contacts connection with described pawl assembly, and the other end contacts connection with described inside casing.
9. the sofa folding device according to any one of claim 1-8 is it is characterised in that described first rotating shaft is the first riveting
Nail, described second rotating shaft is the second rivet.
10. a kind of sofa is it is characterised in that include the sofa folding device described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092549.3A CN106377111A (en) | 2016-12-01 | 2016-12-01 | Sofa folding device and sofa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092549.3A CN106377111A (en) | 2016-12-01 | 2016-12-01 | Sofa folding device and sofa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106377111A true CN106377111A (en) | 2017-02-08 |
Family
ID=57960035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611092549.3A Pending CN106377111A (en) | 2016-12-01 | 2016-12-01 | Sofa folding device and sofa |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106377111A (en) |
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|---|---|---|---|---|
| CN2208851Y (en) * | 1994-07-26 | 1995-10-04 | 任强 | Multifunctional foldable sofa |
| DE20319484U1 (en) * | 2003-12-16 | 2004-03-11 | Ferdinand Lusch Gmbh & Co. Kg | Adjustable hinge for furniture has two hinge halves linked by interlocking ratchet discs splayed apart axially to release the setting |
| CN2719105Y (en) * | 2004-07-27 | 2005-08-24 | 张勤岗 | Recreational chair |
| CN2917408Y (en) * | 2006-07-06 | 2007-07-04 | 应海珍 | Folding sofa structure |
| CN104161405A (en) * | 2014-06-27 | 2014-11-26 | 蒋孝年 | A seat back angle adjusting device |
| CN104188398A (en) * | 2014-08-28 | 2014-12-10 | 浙江凯帝家具有限公司 | Simplified sofa |
| CN204071228U (en) * | 2014-06-27 | 2015-01-07 | 蒋孝年 | A kind of regulator for chair back angle |
| CN104433388A (en) * | 2014-11-28 | 2015-03-25 | 李明海 | Angle regulator, bean bag support and bean bag |
| CN206507634U (en) * | 2016-12-01 | 2017-09-22 | 应海珍 | Sofa folding device and sofa |
-
2016
- 2016-12-01 CN CN201611092549.3A patent/CN106377111A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208851Y (en) * | 1994-07-26 | 1995-10-04 | 任强 | Multifunctional foldable sofa |
| DE20319484U1 (en) * | 2003-12-16 | 2004-03-11 | Ferdinand Lusch Gmbh & Co. Kg | Adjustable hinge for furniture has two hinge halves linked by interlocking ratchet discs splayed apart axially to release the setting |
| CN2719105Y (en) * | 2004-07-27 | 2005-08-24 | 张勤岗 | Recreational chair |
| CN2917408Y (en) * | 2006-07-06 | 2007-07-04 | 应海珍 | Folding sofa structure |
| CN104161405A (en) * | 2014-06-27 | 2014-11-26 | 蒋孝年 | A seat back angle adjusting device |
| CN204071228U (en) * | 2014-06-27 | 2015-01-07 | 蒋孝年 | A kind of regulator for chair back angle |
| CN104188398A (en) * | 2014-08-28 | 2014-12-10 | 浙江凯帝家具有限公司 | Simplified sofa |
| CN104433388A (en) * | 2014-11-28 | 2015-03-25 | 李明海 | Angle regulator, bean bag support and bean bag |
| CN206507634U (en) * | 2016-12-01 | 2017-09-22 | 应海珍 | Sofa folding device and sofa |
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Application publication date: 20170208 |
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