CN205568431U - A hinge four -bar linkage for drawer type sofa bed - Google Patents
A hinge four -bar linkage for drawer type sofa bed Download PDFInfo
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- CN205568431U CN205568431U CN201620230293.7U CN201620230293U CN205568431U CN 205568431 U CN205568431 U CN 205568431U CN 201620230293 U CN201620230293 U CN 201620230293U CN 205568431 U CN205568431 U CN 205568431U
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- side link
- bar linkage
- connecting rod
- drawer type
- frame
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Abstract
The utility model relates to a hinge four -bar linkage for drawer type sofa bed (1), including frame (2), a link lever (3), first side link (4) and second side link (5), wherein, hinge four -bar linkage (1) can and expand in the compression position to change between, in the time of on compressing the position, frame (2) and connecting rod (3) parallel and parallel interval between the two reach the minimum, in the time of on expanding the position, frame (2) and connecting rod (3) parallel and parallel interval maxmizing between the two, wherein the second end (42) of first side link has self -lock device, so that reaching, hinge four -bar linkage (1) ability auto -lock when expanding the position stabilizes the state, the security of current drawer type sofa bed has improved.
Description
Technical field
This utility model relates to a kind of four-bar linkage for Drawer type couch.
Background technology
Drawer type couch includes:
-it being arranged on ground pedestal, base interior is cavity, and
-it is arranged on the sliding seat in base interior cavity, the bottom surface of sliding seat is provided with pulley, at the punctured position shunk in base interior cavity and can extend to move between the extended position outside pedestal relative to pedestal, wherein, sliding seat also has the portable plate of the sliding seat that is movably connected by four-bar linkage；
When sliding seat is contracted in punctured position, portable plate is collapsible in base interior cavity so that Drawer type couch uses as sofa；
When sliding seat extends to extended position, portable plate can be launched by four-bar linkage and be supported on the front apron of sliding seat so that Drawer type couch uses as bed.
But, the four-bar linkage of the sliding seat of existing Drawer type couch functions only as the effect of moving active plate, and cannot play the fixing effect supporting portable plate, and portable plate remains a need for by being supported on the front apron of sliding seat the fixing support of realization.But, when pressurized, this unstable supporting way of portable plate is easily caused between portable plate and front apron and misplaces, thus causes and cave in, and there is potential safety hazard.
Utility model content
It should be noted that the purpose of this utility model is to overcome the one or more shortcomings having been found that in background technology.
For this purpose, according to the utility model proposes a kind of novel four-bar linkage for Drawer type couch, it is prevented between portable plate and front apron misplacing.
nullThis novel four-bar linkage for Drawer type couch includes frame、Connecting rod、First side link and the second side link，The two ends of described frame are respectively articulated with the first end of the first side link and the first end of the second side link，The two ends of described connecting rod are respectively articulated with the second end of the first side link and the second end of the second side link，Wherein，The length of described first side link is less than the length of described second side link，The length of described connecting rod is less than the length of described frame，Described four-bar linkage can change between compression position and expanded position，Time on described compression position，Parallel with described connecting rod and between the two the parallel distance of described frame minimizes，Time in the deployed position，Parallel with described connecting rod and between the two the parallel distance of described frame reaches maximum，Second end of wherein said first side link has self-locking device，So that self-locking steady statue can be reached when described four-bar linkage is at expanded position.
By this new hinges four-bar mechanism so that the portable plate in the sliding seat of Drawer type couch is obtained in that a self-locking position after deployment.So, no matter portable plate how pressurized, all can realize self-locking at self-locking position, thus avoid misplacing between portable plate and front apron.
Further, described self-locking device is from the place plane of described first side link jut outwardly, described jut can limit described connecting rod degree of freedom in its plane of movement, so, when four-bar linkage arrives self-locking position, to block because of this jut between connecting rod and the first side link, it is achieved self-locking.
Further, described jut is arranged in the second end of the first side link the side near described four-bar linkage center, so, first side link is only subject to stopping of the direction, side near described four-bar linkage center at self-locking position, the most not stopping by the direction, side away from described four-bar linkage center, therefore, it is possible to return to original state, and it is unlikely to locked.
Further, the height of described jut is at least above the thickness of described connecting rod, to guarantee that whole connecting rod is all stopped by jut.
Further, the end of described jut has outer rim, in order to form the groove receiving described connecting rod thickness, to prevent connecting rod from skidding off from the end of jut.
Further, the rivet during described jut is integrally fixed at described first side link, in order to processing.
Further, in described frame, one end of hinged described first side link has the bending part bent to described connecting rod, in order to the movement locus of regulation four-bar linkage.
Further, the length of the bending part of described frame is less than the length of described first side link, in order to the movement locus of regulation four-bar linkage.
Further, the two ends of described connecting rod are all to having the bending part bent to described frame, in order to the movement locus of regulation four-bar linkage.
Further, the length of the bending part at described connecting rod two ends is less than the length of described first side link, in order to the movement locus of regulation four-bar linkage.
Compared with existing Drawer type couch, it is only necessary to change or improve parts and just can increase substantially the safety of existing Drawer type couch, prevent from misplacing between portable plate and front apron, and process simplicity, low cost.
Accompanying drawing explanation
It should be understood that in this utility model, except clearly contradicted or incompatible except in the case of, whole features, mode of texturing and/or specific embodiment can combine according to multiple combination.
By reading the following specific embodiment as non-limitative illustration, and combining accompanying drawing, other features and advantages of the utility model will be apparent to, in figure:
-Fig. 1 is the lateral cross-sectional view of Drawer type couch in prior art, it is shown that retractable seat state when punctured position；
-Fig. 2 is another lateral cross-sectional view of the Drawer type couch in Fig. 1, it is shown that retractable seat state when extended position, and wherein, the portable plate of pulldown bed is not deployed；
-Fig. 3 is another lateral cross-sectional view of the Drawer type couch in Fig. 1, it is shown that retractable seat state when extended position, and wherein, the portable plate of pulldown bed is launched by four-bar linkage of the prior art and is supported on front apron；
-Fig. 4 is the perspective view of the four-bar linkage for Drawer type couch according to embodiment of the present utility model；
-Fig. 5 is view when being in the deployed of the four-bar linkage in Fig. 4；
-Fig. 6 is view when being in the first intermediateness of the four-bar linkage in Fig. 4；
-Fig. 7 is view when being in the second intermediateness of the four-bar linkage in Fig. 4；
-Fig. 8 is view when being in three intermediatenesses of the four-bar linkage in Fig. 4；
-Fig. 9 is the view that the four-bar linkage in Fig. 4 is in when compressing position；
-Figure 10 is the part sectioned view of the second end of the first side link according to four-bar linkage of the present utility model；
-Figure 11 is the part sectioned view of the variant of the second end of the first side link according to four-bar linkage of the present utility model.
Detailed description of the invention
It should be understood that above-mentioned accompanying drawing not true to scale, and be only used for illustrating the sketch of the multiple preferred feature of this utility model ultimate principle.Design feature disclosed in the utility model, such as size, direction, location and shape are according to concrete application and use environment to determine.
Below in conjunction with embodiment and accompanying drawing, this utility model is described in detail.In the drawings, identical reference number refers to the most of the present utility model identical or equivalence element.
See Fig. 1-3, existing Drawer type couch includes pedestal 101 and sliding seat 102, pedestal 101 fixes on the ground, and sliding seat 102 can be moved between the extended position (as shown in Figures 2 and 3) outside pedestal 101 in the punctured position (as shown in Figure 1) within pedestal 101 and extending in shrinking relative to pedestal 101 by pulley 103.
Pedestal 101 includes the framework 110 for fixing on the ground and the fixed plate 111 being fixed on framework 110.
Sliding seat 102 includes portable plate 112 and portable plate 112 is connected to the four-bar linkage 113 of sliding seat 102.
When sliding seat 102 is positioned at extended position, can be launched by portable plate 112 by four-bar linkage 113, the portable plate 112 after expansion is shelved on the front apron 114 of sliding seat, with fixed plate 111 the most in the same plane, as shown in Figure 3.But, the anti-bearing pressure of support and fixed plate 111 that the portable plate 112 of expansion only relies on front apron 114 is maintained at expanded position, easily when pressurized with front apron 114 misplace (as generation in figure 3 iris out part), cause bed board to subside, there is potential safety hazard.
Seeing Fig. 4-9, this utility model provides a kind of four-bar linkage 1 with auto-lock function, it is possible to prevents portable plate from misplacing after launching, thus prevents bed board from subsiding.
Four-bar linkage 1 for Drawer type couch of the present utility model includes frame 2, connecting rod the 3, first side link 1 and the second side link 2.
The main body of frame 2 has through hole for being fixed to the sliding seat of Drawer type couch, and the two ends of frame 2 are respectively articulated with the first end 41 and first end 51 of the second side link of the first side link.
The main body of connecting rod 3 has installation portion 33, and installation portion 33 generally vertically extends out from the main body of connecting rod 3 and has some through holes for installation activity plate.The two ends of connecting rod 3 are respectively articulated with the second end 42 and second end 52 of the second side link of the first side link.
In frame 2, connecting rod the 3, first side link 4 and the second side link 5, the length of frame 2 is the longest, and the length of the first side link 4 is the shortest.
Second end 42 of the first side link has self-locking device, and this self-locking device is from the plane of the first side link 4 jut 6 outwardly.This self-locking device is arranged in the second end 42 of the first side link the side near four-bar linkage center.The projected direction of this jut 6 can be paralleled with the bearing of trend of the jointed shaft between the first side link 4 and connecting rod 3.
Especially, see Fig. 5, when connecting rod 3 and the first side link 4 are in the deployed, enter self-locking position, owing to the jut 6 of the first side link 4 is near the side at four-bar linkage center, therefore, it is possible to stop that connecting rod 3 is rotated clockwise in figure；Now, parallel with frame 2 and between the two the level interval of connecting rod 3 reaches maximum, and portable plate is located substantially at same level with fixed plate.
But, seeing Fig. 6 and understand, the jut 6 of the first side link 4 does not stop that connecting rod counterclockwise rotates in figure；Therefore, this four-bar linkage can be made to be returned to initial compression position by counterclockwise rotating the first side link 4 at this self-locking position.
Seeing Fig. 9, when four-bar linkage 1 is returned to compress position, parallel with described connecting rod 3 and between the two the parallel distance of described frame 2 minimizes, it is preferred that both at least partly overlap.
It is returned to compress during position from expanded position at four-bar linkage 1, there is also some intermediatenesses, as the second intermediateness shown in the first intermediateness shown in Fig. 6 of example, Fig. 7 and the 3rd intermediateness shown in Fig. 8,
When four-bar linkage 1 enters the first intermediateness from expanded position, first side link 4 is rotated clockwise along figure, drivening rod 3 tilts, then connecting rod 3 drives the second side link 5 to be rotated clockwise until the angle between frame 2 and the second side link 5 reaches maximum in figure equally, and now the area of the shape that four bars of four-bar linkage 1 are constituted also reaches maximum.
When four-bar linkage 1 enters the second intermediateness from the first intermediateness, first side link 4 continues in figure and is rotated clockwise, drivening rod 3 tilts further, then connecting rod 3 drives the second side link 5 counterclockwise to rotate in figure so that the angle between frame 2 and the second side link 5 is gradually reduced.
When four-bar linkage 1 enters three intermediatenesses from the second intermediateness, first side link 4 continues in figure and is rotated clockwise, drivening rod 3 tilts further, then connecting rod 3 drives the second side link 5 counterclockwise to rotate in figure so that the angle between frame 2 and the second side link 5 reduces further.Compared to the second intermediateness, the area of the shape that four bars of the four-bar linkage 1 being in the 3rd intermediateness are constituted is less.
When four-bar linkage 1 enters compression position from the 3rd intermediateness, first side link 4 continues in figure and is rotated clockwise, drivening rod 3 tilts further, until connecting rod 3 is parallel to each other with frame 2 and at least partly overlaps, then connecting rod 3 drives the second side link 5 counterclockwise to rotate in figure, make the angle between frame 2 and the second side link 5 be gradually decreased to zero, and the angle rotated to below frame 2 horizontal plane between afer bay 2 and the second side link 5 when the second side link 5 become greater to reverse maximum angle from zero.
Improving as one, in frame 2, one end of hinged first side link outwards bends, and the length of bending part is less than the length of the first side link 4.
Improving as one, the two ends of connecting rod 3 the most outwards bend, and the length of the bending part at connecting rod two ends is less than the length of the first side link 4.
Seeing Figure 10, jut 6 can be a plane from the first side link 4 cylinder outwardly.
Seeing Figure 11, improve as one, the end of jut 6 has outer rim 61, and outer rim 61 can be circular, and the diameter of outer rim 61 is more than the diameter of the cylinder of jut 6.Certainly, outer rim can also be other shape, and the area of section of outer rim is more than the area of section of the cylinder of jut.So, when four-bar linkage 1 is in self-locking state, can ensure that connecting rod 3, by jut 6 locking of the first side link 4, causes self-locking to be lost efficacy without generation slippage.
Above example is only used as example, scope of the present utility model is not played restriction effect.Those skilled in the art on this basis, can be in this utility model scope of the claims, it is contemplated that to other embodiment that can realize identical function.
Those skilled in the art grasp various embodiments and various deformation and improvement.Especially, need it is clear that except clearly contradicted or incompatible except in the case of, features described above of the present utility model, mode of texturing and/or specific embodiment can be combined with each other.All these embodiments and deformation and improvement broadly fall into protection domain of the present utility model.Such as, the frame of four-bar linkage, connecting rod, the first side link and the second side link can make different length, width, thickness or shapes according to different needs.
Claims (10)
- null1. the four-bar linkage (1) for Drawer type couch，Including frame (2)、Connecting rod (3)、First side link (4) and the second side link (5)，The two ends of described frame (2) are respectively articulated with first end (41) of the first side link and first end (51) of the second side link，The two ends of described connecting rod (3) are respectively articulated with second end (42) of the first side link and second end (52) of the second side link，It is characterized in that，The length of described first side link (4) is less than the length of described second side link (5)，The length of described connecting rod (3) is less than the length of described frame (2)，Described four-bar linkage (1) can change between compression position and expanded position，Time on described compression position，Parallel with described connecting rod (3) and between the two the parallel distance of described frame (2) minimizes，Time in the deployed position，Parallel with described connecting rod (3) and between the two the parallel distance of described frame (2) reaches maximum，Second end (42) of wherein said first side link has self-locking device，So that described four-bar linkage (1) self-locking can reach steady statue when expanded position.
- Four-bar linkage for Drawer type couch the most according to claim 1 (1), it is characterized in that, described self-locking device is that described jut can limit the described connecting rod (3) degree of freedom in its plane of movement from the place plane of described first side link (4) jut (6) outwardly.
- Four-bar linkage for Drawer type couch the most according to claim 2 (1), it is characterised in that described jut is arranged in second end (42) of the first side link the side near described four-bar linkage (1) center.
- Four-bar linkage for Drawer type couch the most according to claim 2 (1), it is characterised in that the height of described jut (6) is at least above the thickness of described connecting rod (3).
- Four-bar linkage for Drawer type couch the most according to claim 4 (1), it is characterised in that the end of described jut (6) has outer rim (61), in order to form the groove receiving described connecting rod (3) thickness.
- 6. according to the four-bar linkage for Drawer type couch (1) according to any one of claim 2 to 5, it is characterised in that described jut (6) is integrally fixed at the rivet in described first side link (4).
- Four-bar linkage for Drawer type couch the most according to claim 1 (1), it is characterised in that in described frame (2), one end of hinged described first side link (4) has the bending part bent to described connecting rod (3).
- Four-bar linkage for Drawer type couch the most according to claim 7 (1), it is characterised in that the length of the bending part of described frame (2) is less than the length of described first side link (4).
- Four-bar linkage for Drawer type couch the most according to claim 1 (1), it is characterised in that the two ends of described connecting rod (3) are respectively provided with the bending part bent to described frame (2).
- Four-bar linkage for Drawer type couch the most according to claim 9 (1), it is characterised in that the length of the bending part at described connecting rod (3) two ends is less than the length of described first side link (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230293.7U CN205568431U (en) | 2016-03-24 | 2016-03-24 | A hinge four -bar linkage for drawer type sofa bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230293.7U CN205568431U (en) | 2016-03-24 | 2016-03-24 | A hinge four -bar linkage for drawer type sofa bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205568431U true CN205568431U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620230293.7U Active CN205568431U (en) | 2016-03-24 | 2016-03-24 | A hinge four -bar linkage for drawer type sofa bed |
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| Country | Link |
|---|---|
| CN (1) | CN205568431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953463A (en) * | 2017-04-24 | 2017-07-14 | 泰州市瑞美机械有限公司 | Integrated form chair rack motor transmission component |
-
2016
- 2016-03-24 CN CN201620230293.7U patent/CN205568431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953463A (en) * | 2017-04-24 | 2017-07-14 | 泰州市瑞美机械有限公司 | Integrated form chair rack motor transmission component |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |