CN108402744B - Multi-point limiting mechanical stretching device - Google Patents
Multi-point limiting mechanical stretching device Download PDFInfo
- Publication number
- CN108402744B CN108402744B CN201810401113.0A CN201810401113A CN108402744B CN 108402744 B CN108402744 B CN 108402744B CN 201810401113 A CN201810401113 A CN 201810401113A CN 108402744 B CN108402744 B CN 108402744B
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- Prior art keywords
- connecting piece
- piece
- limiting
- limit
- curb plate
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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
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
- A47C1/03211—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by electric motors
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
- A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention provides a multipoint limited mechanical stretching device. The mechanical stretching device solves the technical problems that an existing mechanical stretching device adopts a traditional limiting mode, a functional frame easily shakes in the process of stretching or retracting, the stability is poor, and the like. This spacing mechanical stretching device of multiple spot, including the base, be provided with the function frame on the base, the function frame includes leg structure, seat structure and back structure, leg structure is connected with the seat structure, the seat structure is connected with the back structure, the leg structure includes preceding connecting piece, the seat structure includes installation curb plate and shank drive connecting piece, the back structure includes back spare and back connecting piece, still be provided with limit structure on the function frame, limit structure includes first locating part, second locating part and third locating part, first locating part sets up the middle part at preceding connecting piece, the second locating part sets up on the other end of installation curb plate, the third locating part sets up the middle part at the back spare. The invention has the advantage of good stability.
Description
Technical Field
The invention belongs to the technical field of sofas, and relates to a mechanical stretching device, in particular to a multipoint limiting mechanical stretching device.
Background
Currently, many pieces of furniture for reclining chairs, sofas, and the like are equipped with mechanical extension devices on which are mounted a back rest, a seat cushion, and a leg rest, the mechanical extension devices typically being a combination of various mechanical linkages operable to provide various comfort features, such as independent reclining movement of the seat assembly, and actuation of the extendable leg rest assembly and tilting of the associated chair frame.
Through searching, for example, chinese patent literature discloses a dual drive mechanical stretching device [ application number: 20110170041. X; publication No.: CN 104770999a ]. The double-drive mechanical stretching device is characterized in that: the device comprises two stretching mechanisms, a driving assembly A, a driving assembly B and a base, wherein the two stretching mechanisms are arranged on the left side and the right side of the base in a mirror image mode; the stretching mechanism comprises a backrest component, a supporting component and a foot rest component, wherein the lower end of the supporting component is hinged with the base, the backrest component is hinged with the rear end of the supporting component, and the foot rest component is hinged with the front end of the supporting component; the driving assembly A comprises a driving connecting rod A connected with the rear ends of the two leg rest assemblies, a telescopic power mechanism A and a driving connecting rod C connected with the rear ends of the two supporting assemblies, and two ends of the telescopic power mechanism A are hinged with the driving connecting rod A and the driving connecting rod C respectively; the driving assembly B comprises a driving connecting rod B and a telescopic power mechanism B, wherein the driving connecting rod B and the telescopic power mechanism B are connected with the front ends of the two supporting assemblies, and two ends of the telescopic power mechanism B are respectively hinged with the driving connecting rod B and the base.
The mechanical stretching device disclosed in the patent has wider adjustment range, but the mechanical stretching device adopts a traditional limiting mode, so that the functional frame easily shakes in the process of expanding or retracting, and the stability is poor, and therefore, the mechanical stretching device with multi-point limiting is necessary to design.
Disclosure of Invention
The invention aims at solving the problems in the prior art and provides a multi-point limiting mechanical stretching device which has the characteristic of good stability.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a spacing mechanical stretching device of multiple spot, the on-line screen storage device comprises a base, be provided with the function frame on the base, the function frame includes leg structure, seat structure and back structure, leg structure is connected with seat structure, seat structure is connected with back structure, the leg structure includes preceding connecting piece, seat structure includes installation curb plate and shank drive connecting piece, back structure includes back piece and back connecting piece, the installation curb plate sets up on the base, the one end of installation curb plate and the one end of preceding connecting piece rotate to be connected, the other end of preceding connecting piece and base rotate to be connected with back piece, the other end of back connecting piece and the other end of shank drive connecting piece rotate to be connected, the one end of shank drive connecting piece and the middle part of preceding connecting piece rotate to be connected, a serial communication port, still be provided with limit structure on the function frame, limit structure includes first locating part, second locating part and third locating part, first locating part sets up the middle part at preceding connecting piece, and shank drive connecting piece can lean against with first locating part, the second locating part sets up on the other end of installation curb plate and the other end of shank drive connecting piece, and the second locating part can lean against at the back piece, and the second locating part is located at the back and the third locating part.
With the structure, the function frame is in the sitting position, the TV position and the lying position in the process of switching between the three positions, the first limiting piece is propped against the leg driving connecting piece to limit the position of the leg driving connecting piece, the third limiting piece is propped against the rear connecting piece to limit the position of the rear connecting piece, and the backrest is prevented from shaking in the sitting position; when the device is in a TV pose, the second limiting piece is propped against the leg driving connecting piece to limit the position of the leg driving connecting piece, so that the sitting point is prevented from sinking continuously after the TV pose is opened; when the sofa is in the lying position, the third limiting piece abuts against the rear connecting piece, the position of the rear connecting piece is limited, the backrest angle of the sofa is guaranteed to reach the most comfortable position for a user, and therefore the sitting position, the TV position and the lying position are guaranteed to have good stability.
The first limiting part comprises a first limiting sleeve, and the first limiting sleeve is connected to the middle of the front connecting part through a rivet.
With the structure, the limiting sleeve can be connected to the front connecting piece, and the limiting sleeve and the front connecting piece can rotate relatively.
The second limiting piece comprises a second limiting sleeve, and the second limiting sleeve is connected to the other end of the mounting side plate through a rivet.
By adopting the structure, the second limit sleeve can be connected to the mounting side plate, and the second limit sleeve and the mounting side plate can rotate relatively.
The third limiting piece comprises a limiting pin, and the limiting pin is connected to the middle of the backrest piece through threads.
By adopting the mode, the limiting pin can be connected to the backrest part, and the firmness of the limiting pin and the backrest part is higher.
As another case, the third limiting member includes a limiting pin fixed to the middle of the backrest member by welding.
By adopting the mode, the limiting pin can be connected to the backrest part, and the firmness of the limiting pin and the backrest part is higher.
Compared with the prior art, the multipoint limiting mechanical stretching device has the advantages that:
in the invention, in the process of switching between sitting postures, TV postures and lying postures, when the functional frame is in the sitting postures, the first limiting piece abuts against the leg driving connecting piece to limit the position of the leg driving connecting piece, the third limiting piece abuts against the rear connecting piece to limit the position of the rear connecting piece, and the backrest is prevented from shaking when in the sitting postures; when the device is in a TV pose, the second limiting piece is propped against the leg driving connecting piece to limit the position of the leg driving connecting piece, so that the sitting point is prevented from sinking continuously after the TV pose is opened; when the sofa is in the lying position, the third limiting piece abuts against the rear connecting piece, the position of the rear connecting piece is limited, the backrest angle of the sofa is guaranteed to reach the most comfortable position for a user, and therefore the sitting position, the TV position and the lying position are guaranteed to have good stability.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic front view of the functional frame of the present invention when fully collapsed.
Fig. 3 is a schematic front view of the functional rack of the present invention partially deployed.
Fig. 4 is a schematic front view of the functional rack of the present invention fully extended.
Fig. 5 is a schematic perspective view of a headrest adjusting mechanism in the present invention.
Fig. 6 is a schematic perspective view of a removed portion of the present invention.
Fig. 7 is a schematic perspective view of a driving structure in the present invention.
In the figure, 1, a base; 2. a second limiting piece; 3. a rear connecting member; 4. a third limiting member; 5. a backrest member; 6. leg drive connection; 7. a first limiting member; 8. a front connector; 9. installing a side plate; 11. a mounting frame; 12. a plug pin; 13. a driving rod; 13a, a reinforcing part; 14. a main swing member; 15. a side connector; 16. from the swinging member; 17. a headrest plate; 18. a push rod motor; 19. a headrest connection; 20. and a supporting plate.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 7, the multipoint limited mechanical stretching device comprises a base 1, wherein a functional frame is arranged on the base 1, and in the embodiment, the functional frame can adopt the prior art and can realize the switching between three postures in a manual or electric mode; the function frame includes leg structure, seat structure and back structure, leg structure is connected with seat structure, seat structure is connected with back structure, leg structure includes preceding connecting piece 8, seat structure is including installation curb plate 9 and shank drive connecting piece 6, back structure includes back piece 5 and back connecting piece 3, installation curb plate 9 sets up on base 1, the one end of installation curb plate 9 and the one end rotation of preceding connecting piece 8 are connected, the other end and the base 1 rotation of preceding connecting piece 8 are connected, the other end of installation curb plate 9 and back piece 5 rotate and are connected, back piece 5 middle part and the one end of back connecting piece 3, the other end of back connecting piece 3 and the other end rotation of shank drive connecting piece 6 are connected, shank drive connecting piece 6's one end and the middle part of preceding connecting piece 8 rotate and are connected, still be provided with limit structure on the function frame, limit structure includes first limit piece 7, second limit piece 2 and third limit piece 4, first limit piece 7 sets up the middle part at preceding connecting piece 8, and shank drive connecting piece 6 can lean against with first limit piece 7, second limit piece 2 sets up on another end of installation curb plate 9 and back piece 5, and the other end that can lean against at the back piece 4, and the setting up with the third limit piece 4, and can be connected at the back piece 3.
With the structure, in the process of switching between the sitting posture, the TV posture and the lying posture, when the functional frame is in the sitting posture, the first limiting piece 7 abuts against the leg driving connecting piece 6 to limit the position of the leg driving connecting piece 6, the third limiting piece 4 abuts against the rear connecting piece 3 to limit the position of the rear connecting piece 3, and the backrest is prevented from shaking when in the sitting posture; when the device is in a TV pose, the second limiting piece 2 is propped against the leg driving connecting piece 6 to limit the position of the leg driving connecting piece 6, so that the sitting point is prevented from sinking continuously after the TV pose is opened; when the sofa is in the lying position, the third limiting piece 4 is propped against the rear connecting piece 3, the position of the rear connecting piece 3 is limited, the leaning angle of the sofa backrest is guaranteed to reach the most comfortable position for a user, and therefore, the stability of each state in the sitting position, the TV position and the lying position is guaranteed to be good; the sitting posture is that the functional rack is retracted, the TV posture is that the functional rack is partially unfolded, and the lying posture is that the functional rack is fully unfolded.
The first limiting piece 7 comprises a first limiting sleeve which is connected with the middle part of the front connecting piece 8 through a rivet.
With this structure, a spacer can be connected to the front connector 8 and the two can rotate relative to each other.
The second limiting piece 2 comprises a second limiting sleeve which is connected to the other end of the mounting side plate 9 through a rivet.
With this structure, the second stop collar can be connected to the mounting side plate 9, and the second stop collar and the mounting side plate can rotate relative to each other.
The third limiting piece 4 comprises a limiting pin which is connected to the middle of the backrest piece 5 through threads.
In this way, the stop pin can be connected to the backrest part 5, and the two have high fastnesses.
Of course, according to the actual situation, this solution may also be adopted, in which the third limiting member 4 comprises a limiting pin fixed by welding to the middle of the backrest member 5.
In this way, the stop pin can be connected to the backrest part 5, and the two have high fastnesses.
The backrest piece 5 is also connected with the mounting frame 11, the mounting frame 11 is provided with a headrest adjusting mechanism, the headrest adjusting mechanism comprises a headrest plate 17, a headrest connecting piece 19, a main swinging piece 14, a slave swinging piece 16 and a side connecting piece 15, the upper end of the headrest connecting piece 19 is connected with the headrest plate 17, and in the embodiment, the upper end of the headrest connecting piece 19 is connected with the end part of the headrest plate 17 in a bolt connection mode; the middle part of the headrest connecting piece 19 is hinged with the upper end of the swinging piece 16, the lower end of the swinging piece 16 is hinged with the side connecting piece 15, the side connecting piece 15 is connected with the mounting frame 11, and in the embodiment, the side connecting piece 15 is connected with the side part of the mounting frame 11 by a rivet connection mode; the lower end of the headrest connecting piece 19 is connected with the upper end of the main swinging piece 14, the lower end of the main swinging piece 14 is hinged with the side connecting piece 15, the headrest connecting piece 19, the main swinging piece 14, the side connecting piece 15 and the auxiliary swinging piece 16 form a quadrilateral structure, and the main swinging piece 14 is also connected with a driving structure capable of driving the main swinging piece to swing back and forth; in the present embodiment, the number of the headrest connection members 19, the master swing member 14, the slave swing member 16, and the side connection members 15 is two.
The driving structure comprises a driving rod 13 and a push rod motor 18, the push rod motor 18 is hinged on the mounting frame 11, the push rod motor 18 is positioned below the head backup plate 17, a push rod of the push rod motor 18 is vertically arranged, the lower end of the driving rod 13 is connected with the end part of the push rod motor 18, and the upper end of the driving rod 13 is hinged with the main swinging piece 14; in the present embodiment, the number of driving structures is two.
With this structure, by the action of the driving lever 13, the power at the push rod motor 18 can be efficiently transmitted to the main oscillating member 14.
The lower end of the driving rod 13 is connected with the end part of a push rod of the push rod motor 18 through two bolts 12.
By adopting the structure, the driving rod 13 and the push rod of the push rod motor 18 can be firmly connected together through the two bolts 12, and meanwhile, the relative rotation between the driving rod and the push rod motor 18 can be avoided, so that the connection is reliable.
The driving rod 13 further has a reinforcing portion 13a.
With this structure, the driving rod 13 can be locally reinforced by the reinforcing portion 13a, thereby improving the overall stress performance of the driving rod 13.
The mounting frame 11 is also provided with a supporting plate 20 for limiting the push rod motor 18, the supporting plate 20 is L-shaped, the upper end of the supporting plate 20 is connected with the mounting frame 11, and in the embodiment, the upper end of the supporting plate 20 is connected with the mounting frame 11 in a rivet connection mode; the lower end of the supporting plate 20 is a limiting end, and the body of the push rod motor 18 can be in contact with the limiting end.
With this structure, the push rod motor 18 can be limited in operation by the support plate 20, so that the body of the push rod motor 18 swings in a normal range.
By adopting the structure, the push rod of the push rod motor 18 is controlled to move up and down, the push rod of the push rod motor 18 drives the driving rod 13 to move up and down, the driving rod 13 drives the main swinging member 14 to swing back and forth, the headrest connecting member 19 swings back and forth under the action of the main swinging member 14 and the auxiliary swinging member 16, the headrest connecting member 19 drives the headrest plate 17 to swing back and forth, and the headrest plate 17 is adjusted to a required position, so that the head of a spectator can be better supported through the headrest plate 17, and the device is applicable to the use requirements of different spectators.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The utility model provides a spacing mechanical stretching device of multiple spot, including the base, be provided with the function frame on the base, the function frame includes the shank structure, seat structure and back structure, the shank structure is connected with the seat structure, the seat structure is connected with the back structure, the shank structure includes preceding connecting piece, the seat structure includes installation curb plate and shank drive connecting piece, the back structure includes back piece and back connecting piece, the installation curb plate sets up on the base, one end of installation curb plate and one end of preceding connecting piece rotate to be connected, the other end of preceding connecting piece and base rotate to be connected, the other end of installation curb plate and back piece rotate to be connected, back connecting piece's the other end and shank drive connecting piece's the other end rotate to be connected, shank drive connecting piece's one end and the middle part of preceding connecting piece rotate to be connected, characterized in that still be provided with limit structure on the function frame, first limit piece, second limit piece sets up at the middle part of preceding connecting piece, and shank drive connecting piece can lean against with first limit piece, the second limit piece sets up on the other end of installation curb plate and back piece, and the setting up at the back of second limit piece can lean against with the limit piece; when the chair is in a sitting position, the first limiting piece abuts against the leg driving connecting piece to limit the position of the leg driving connecting piece, the third limiting piece abuts against the rear connecting piece to limit the position of the rear connecting piece; when the device is in a TV pose, the second limiting piece is propped against the leg driving connecting piece to limit the position of the leg driving connecting piece; when the back connecting piece is in a lying position, the third limiting piece is propped against the back connecting piece, and the position of the back connecting piece is limited; the first limiting piece comprises a first limiting sleeve, the second limiting piece comprises a second limiting sleeve, and the third limiting piece comprises a limiting pin.
2. The multi-point limiting mechanical stretcher of claim 1 wherein the first stop collar is attached to the middle of the front connector by a rivet.
3. The multi-point spacing mechanical stretcher of claim 1 wherein the spacing sleeve is attached to the other end of the mounting side plate by a rivet.
4. The multi-point spacing mechanical stretcher of claim 1 wherein the spacing pin is threadably attached to the middle of the back rest member.
5. The multi-point spacing mechanical stretcher of claim 1 wherein the spacing pin is secured to the middle of the back rest member by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401113.0A CN108402744B (en) | 2018-04-28 | 2018-04-28 | Multi-point limiting mechanical stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401113.0A CN108402744B (en) | 2018-04-28 | 2018-04-28 | Multi-point limiting mechanical stretching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108402744A CN108402744A (en) | 2018-08-17 |
| CN108402744B true CN108402744B (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810401113.0A Active CN108402744B (en) | 2018-04-28 | 2018-04-28 | Multi-point limiting mechanical stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108402744B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641199A (en) * | 2011-02-18 | 2012-08-22 | 大东电机工业株式会社 | Chair-type massage machine |
| CN203555415U (en) * | 2013-09-24 | 2014-04-23 | 傅建华 | Chair and seat cushion mounting structure thereof |
| CN104083016A (en) * | 2014-07-17 | 2014-10-08 | 黄小卫 | Pause-free unfolding device and mechanical stretching device of movable sofa |
| CN105705063A (en) * | 2013-05-10 | 2016-06-22 | 金特克索沦特有限责任公司 | Item of seating furniture and fitting therefore |
| CN107105899A (en) * | 2014-10-15 | 2017-08-29 | L&P产权管理公司 | The automatic multiposition recliner mechanism of Zero-wall clearance |
| DE102016116891A1 (en) * | 2016-09-09 | 2018-03-15 | Michael Schuster | Seating furniture with swing-out footrest |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208837379U (en) * | 2018-04-28 | 2019-05-10 | 浙江飞力科技股份有限公司 | A kind of mechanical extending device of multiple spot limit |
-
2018
- 2018-04-28 CN CN201810401113.0A patent/CN108402744B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641199A (en) * | 2011-02-18 | 2012-08-22 | 大东电机工业株式会社 | Chair-type massage machine |
| CN105705063A (en) * | 2013-05-10 | 2016-06-22 | 金特克索沦特有限责任公司 | Item of seating furniture and fitting therefore |
| CN203555415U (en) * | 2013-09-24 | 2014-04-23 | 傅建华 | Chair and seat cushion mounting structure thereof |
| CN104083016A (en) * | 2014-07-17 | 2014-10-08 | 黄小卫 | Pause-free unfolding device and mechanical stretching device of movable sofa |
| CN107105899A (en) * | 2014-10-15 | 2017-08-29 | L&P产权管理公司 | The automatic multiposition recliner mechanism of Zero-wall clearance |
| DE102016116891A1 (en) * | 2016-09-09 | 2018-03-15 | Michael Schuster | Seating furniture with swing-out footrest |
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| Publication number | Publication date |
|---|---|
| CN108402744A (en) | 2018-08-17 |
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