CN102813391A - Telescopic foot pad mechanism of chair - Google Patents
Telescopic foot pad mechanism of chair Download PDFInfo
- Publication number
- CN102813391A CN102813391A CN2012102918076A CN201210291807A CN102813391A CN 102813391 A CN102813391 A CN 102813391A CN 2012102918076 A CN2012102918076 A CN 2012102918076A CN 201210291807 A CN201210291807 A CN 201210291807A CN 102813391 A CN102813391 A CN 102813391A
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- drive
- link
- drive link
- foot pad
- quadric chain
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Abstract
The invention discloses a telescopic foot pad mechanism of a chair. The mechanism comprises a base, a driving mechanism and a folding frame assembly. The base is fixed under a chair seat; the driving mechanism and the folding frame assembly are mounted on the base; the folding frame assembly comprises two symmetrically arranged folding frames; the folding frame comprises a first four-bar linkage mechanism and a second four-bar linkage mechanism, which are movably connected together and capable of performing expanding and folding actions; the first four-bar linkage mechanism and the base are pivoted; the driving mechanism and the first four-bar linkage mechanism are in transmission connection to drive the first four-bar linkage mechanism for action; and the first four-bar linkage mechanism drives the second four-bar linkage mechanism for action. The telescopic foot pad mechanism employed the structure provided by the invention has simpler structure and lower cost, compared with a traditional chassis-type foot pad adjustment mechanism, can be controlled independently to expand or fold without cooperating with a chair back, and has good serviceability and convenient operation.
Description
Technical field
The present invention relates to a kind of seat extension/retraction foot pad mechanism.
Background technology
Existing seat generally all is provided with the foot pad mechanism that can provide support foot shank position for promoting riding comfort, and this foot pad mechanism can launch on demand or fold so that the user take on seat.
And the more common structure of existing foot pad mechanism is to be arranged at seat support front end lower position and to be vertical with seat support; During use foot pad mechanism can pivot launch parallel with seat support; For example the patent No. is the i.e. design for this reason of United States Patent (USP) of US6572185, US7134713, US6402232, but this kind mode is prone to because of foot pad mechanism is limited by seat support and ground level and causes this foot pad mechanism deploying curtailment situation.
Traditional foot pad mechanism generally is designed to and chair back interlock, but and make the chair back this foot pad synchronous expansion of when layback, but this kind design will cause the chair back not swing back the time foot pad can not launch, applicability is not strong.
Summary of the invention
In order to address the above problem, the present invention provides a kind of seat extension/retraction foot pad mechanism that can independently control foot pad expansion, folding, and this mechanism has activated position stability and preferable supportive.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of seat extension/retraction foot pad mechanism is characterized in that comprising that a pedestal, a driving mechanism and fold frame component, and said pedestal is fixedly mounted on the seat support below; Driving mechanism with fold frame component and be installed on the pedestal; The said frame component that folds comprises that symmetrically arranged two fold frame, and the said frame that folds comprises first quadric chain and second quadric chain, and first quadric chain and second quadric chain are movably connected; Can launch, folding; First quadric chain and pedestal articulate, and the driving mechanism and first quadric chain are in transmission connection to drive the action of first quadric chain, and first quadric chain drives the action of second quadric chain.
Said pedestal comprises two fish plates that below seat support, are connected with seat, is provided with accommodation space between said two fish plates, and said two fish plates top is provided with the junction surface, and fish plate passes through last junction surface and is fixedly connected with seat support.
Said first quadric chain comprises first connecting rod, as the first basic connecting rod of frame, as first toggle-action lever of crank, be used to drive first drive rod of first quadric chain; Said second quadric chain comprises second connecting rod, as the second basic connecting rod of frame, as second toggle-action lever of crank, be used to drive second drive rod of second quadric chain; Said first connecting rod is set to the part of second drive rod; Said first drive rod is fixedly connected with the second basic connecting rod; The driving mechanism and first drive rod are in transmission connection; The said first basic connecting rod is arranged on the fish plate, and said first drive rod, one end and first toggle-action lever, one end are hubbed on respectively on the first basic connecting rod, and the said first drive rod other end and the first toggle-action lever other end are articulated with the two ends of first connecting rod respectively; Said second drive rod, second connecting rod, the second basic connecting rod and second toggle-action lever join end to end.
Said driving mechanism comprises a rocker handle, one the 4th drive link, two guide shafts, 2 first drive links and 2 second drive links; Said the 4th drive link two ends are provided with non-circular link; Said rocker handle one end is provided with the shrinkage pool that cooperates with link; Link is located in the shrinkage pool, and first drive link, one end and second drive link, one end are articulated, and the said first drive link other end is provided with first through hole that cooperates with link; Said fish plate one end is provided with the perforation that is used to settle the 4th drive link, and the 4th drive link is through being located in link first through hole and 2 first drive link interlocks; The other end of said fish plate is provided with guide groove; Corresponding guide groove position is provided with elongated hole on said first drive rod; The said second drive link other end is provided with second through hole; Be equipped with guide shaft in said second through hole, elongated hole and the guide groove, the path when said guide groove shape and guide shaft action is complementary.
Said driving mechanism also comprises an auxiliary body; Said auxiliary body comprises spring, the 3rd drive link and bond post, and said bond post is arranged on the fish plate, and the line between the bond post of fish plate and perforation is set to axis; Said spring one end is connected with the bond post of fish plate; The other end engages with the 3rd drive link, and said the 3rd drive link one end is connected with the link of the 4th drive link, the 3rd drive link other end combined spring other end; And the link position that makes the link of the 3rd drive link and the 4th drive link is positioned between spring two ends, and makes the 3rd drive link driven by rocker handle can making spring be offset to respective axes below or top position when pivoting.
Said guide groove rear be provided with can to guide shaft spacing fold the location division, the place ahead be provided with can be spacing to guide shaft the expansion location division, the guide shaft at two ends can link together through a guide rod.
Said expansion location division can be set to more than one.
Said fold the location division and launch the location division be set to crooked locating slot respectively downwards.
The corresponding guide groove of said guide shaft position is provided with bearing.
The invention has the beneficial effects as follows: the chassis type foot pad governor motion structure that the present invention of employing said structure is traditional relatively is simple more, cost is cheaper; Can not must cooperate the chair back can independently control foot pad expansion, folding, have preferable applicability, more convenient to operate.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Fig. 1 is an exploded view of the present invention;
Fig. 2 is a constitutional diagram of the present invention, shows the foot pad deployed condition;
Fig. 3 is that the present invention is installed in the sketch map under the seat;
Fig. 4 is an expansion schematic side view of the present invention;
Fig. 5 is the schematic side view that the present invention is expanded to another position;
Fig. 6 is the stereogram that folds of the present invention;
Fig. 7 is that the present invention is installed in the sketch map that is in collapse state under the seat.
The specific embodiment
With reference to Fig. 1～Fig. 7; The present invention is an a kind of seat extension/retraction foot pad mechanism, comprises that a pedestal 1, a driving mechanism and fold frame component, and pedestal 1 is fixedly mounted on the seat support below; Driving mechanism with fold frame component and be installed on the pedestal 1; Fold frame component and comprise that symmetrically arranged two fold frame 2, fold frame 2 and comprise first quadric chain and second quadric chain, first quadric chain and second quadric chain are movably connected; Can launch, folding; First quadric chain and pedestal 1 articulate, and the driving mechanism and first quadric chain are in transmission connection to drive the action of first quadric chain, and first quadric chain drives the action of second quadric chain.The chassis type foot pad governor motion structure that the present invention of employing said structure is traditional relatively is simple more, cost is cheaper; Can not must cooperate the chair back can independently control foot pad expansion, folding, have preferable applicability, more convenient to operate.
As shown in the figure, pedestal 1 comprises that two 11 of fish plate 11, two fish plates below seat support, being connected with seat are provided with accommodation space, and two fish plates, 11 tops are provided with junction surface 12, and fish plate 11 is fixedly connected with seat support through last junction surface 12.
As shown in the figure; First quadric chain comprises first connecting rod 23, as the first basic connecting rod 21 of frame, as first toggle-action lever 22 of crank, be used to drive first drive rod 24 of first quadric chain; Second quadric chain comprises second connecting rod 33, as the second basic connecting rod 31 of frame, as second toggle-action lever 32 of crank, be used to drive second drive rod 34 of second quadric chain; First connecting rod 23 is set to the part of second drive rod 34; First drive rod 24 is fixedly connected with the second basic connecting rod 31; The driving mechanism and first drive rod 24 are in transmission connection; The first basic connecting rod 21 is arranged on the fish plate 11, and first drive rod, 24 1 ends and first toggle-action lever, 22 1 ends are hubbed on respectively on the first basic connecting rod 21, and first drive rod, 24 other ends and first toggle-action lever, 22 other ends are articulated with the two ends of first connecting rod 23 respectively; Second drive rod 34, second connecting rod 33, the second basic connecting rod 31 and second toggle-action lever 32 join end to end.Adopt said structure to fold frame component simple in structure, practical, with low cost, easy to operate, on two second connecting rods 33 bearing frame can be installed, be used for leg-supporting.
As shown in the figure; Driving mechanism comprises a rocker handle 41, one the 4th drive link 42, a guide shaft 46,2 first drive links 44 and 2 second drive links 45; The 4th drive link 42 two ends are provided with non-circular link 421; rocker handle 41 1 ends are provided with the shrinkage pool 411 that cooperates with link 421; link 421 is located in the shrinkage pool 411, and first drive link, 44 1 ends and second drive link, 45 1 ends are articulated, and first drive link, 44 other ends are provided with first through hole 441 that cooperates with link 421; fish plate 11 1 ends are provided with perforation 112, the four drive links 42 that are used to settle the 4th drive link 42 through link 421 being located in first through hole 441 and 2 first drive links, 44 interlocks; The other end of fish plate 11 is provided with guide groove 111; Corresponding guide groove 111 positions are provided with elongated hole 241 on first drive rod 24; Second drive link, 45 other ends are provided with in second through hole, 451, the second through holes 451, elongated hole 241 and the guide groove 111 and are equipped with guide shaft 46, and the path when guide groove 111 shapes and guide shaft 46 actions is complementary; Guide groove 111 rears be provided with can to guide shaft 46 spacing fold location division 113; The place ahead be provided with can be spacing to guide shaft 46 expansion location division 114, launch location division 114 and can be set to two, fold location division 113 and launch location division 114 and be set to crooked locating slot respectively downwards; Guide shaft 46 corresponding guide grooves 111 positions are provided with bearing 431, and the guide shaft 46 at two ends can link together through a guide rod 43.
As shown in the figure; Driving mechanism also comprises an auxiliary body 5; Auxiliary body 5 comprises spring 51, the 3rd drive link 52 and bond post 53, and bond post 53 is arranged on the fish plate 11, and the bond post 53 of fish plate 11 and 112 the line of boring a hole are set to axis 6; Spring 51 1 ends are connected with bond post 53; The other end engages with the 3rd drive link 52, and the 3rd drive link 52 1 ends are connected with the link 421 of the 4th drive link 42, the 3rd drive link 52 other end combined springs 51 other ends; And the link position that makes the link 421 of the 3rd drive link 52 and the 4th drive link 42 is positioned between spring 51 2 ends, and makes the 3rd drive link 52 driven when pivoting by rocker handle 41 can making spring 51 be offset to respective axes 6 belows or top position.
With reference to Fig. 2～Fig. 4; The present invention operates rocker handle 41 and can drive the 4th drive link 42, first drive link 44, second drive link 45, fold frame component and launch action; Guide shaft 46 can move in guide groove 111 during action; And guide shaft 46 can be positioned at launch 114 positions, location division and embed first locating slot 115 to locate expanded position; This moment, spring 51 was positioned at respective axes 6 lower positions; And because of locating slot is that recessed design makes bearing user shank weight can make that guide shaft 46 is more stable to engage with the preferable position stability of tool with launching location division 114, again because of the present invention by two fish plates 11 on average support fold frame component and user's shank weight, can have a preferable stability of strutting system.
With reference to Fig. 5; The present invention can operate rocker handle 41 adjustment and fold frame component reach position; And make guide shaft 46 embed another locating slot that launches location division 114 116 location to shorten length of run, make the present invention the person's of being used leg length demand to adjust expanded position with the better applicability of tool.
With reference to Fig. 6 and Fig. 7; The rotation of operation rocker handle 41 can drive the 4th drive link 42, first drive link 44, the 45 corresponding displacements of second drive link and drive and fold frame component and be and rotate folding backward when the present invention folded; And make and fold frame component and can collapse in the accommodation space lower position to reduce to fold volume; And make guide shaft 46 can be positioned at the location, the locating slot that folds location division 113 117 positions of guide groove 111; And the length of elongated hole 241 can provide guide shaft 46 displacement smoothly, and this guide groove 111 shapes system correspondingly launches, guide shaft 46 displacement paths during actuating, make guide shaft 46 can be in guide groove 111 the set path start with the preferable dynamic stability effect of doing of tool;, the spring 51 of rocker handle 41 action drive auxiliary bodies 5 can be stretched when being offset to axis 6 positions again; And when spring 51 is offset to axis 6 tops, can fold by its restoring force is auxiliary, make the present invention have operation more fast, the effect of convenience, otherwise again also can be when the present invention is converted to deployed condition by collapse state by auxiliary body's 5 auxiliary movements; And the present invention can control the foot pad expansion easily, fold through operation rocker handle 41; And must not cooperate the chair back can make independently that foot pad launches, folding, can have a preferable applicability, and can have preferable stability of strutting system concurrently and length of run does not receive seat height restriction effect.
The foregoing description is a preferred version of the present invention, and the present invention also can have other embodiments.Those skilled in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (9)
1. seat extension/retraction foot pad mechanism; It is characterized in that comprising that a pedestal (1), a driving mechanism and fold frame component; Said pedestal (1) is fixedly mounted on seat support below, driving mechanism with fold frame component and be installed on the pedestal (1), the said frame component that folds comprises that symmetrically arranged two fold frame (2); The said frame (2) that folds comprises first quadric chain and second quadric chain; First quadric chain and second quadric chain are movably connected, and can launch, folding, and first quadric chain and pedestal (1) articulate; The driving mechanism and first quadric chain are in transmission connection to drive the action of first quadric chain, and first quadric chain drives the action of second quadric chain.
2. a kind of seat extension/retraction foot pad as claimed in claim 1 mechanism; It is characterized in that said pedestal (1) comprises two fish plates (11) that below seat support, are connected with seat; Be provided with accommodation space between said two fish plates (11); Said two fish plates (11) top is provided with junction surface (12), and fish plate (11) is fixedly connected with seat support through last junction surface (12).
3. a kind of seat extension/retraction foot pad as claimed in claim 2 mechanism; It is characterized in that said first quadric chain comprise first connecting rod (23), as the first basic connecting rod (21) of frame, as first toggle-action lever (22) of crank, be used to drive first drive rod (24) of first quadric chain; Said second quadric chain comprises second connecting rod (33), as the second basic connecting rod (31) of frame, as second toggle-action lever (32) of crank, be used to drive second drive rod (34) of second quadric chain; Said first connecting rod (23) is set to the part of second drive rod (34); Said first drive rod (24) is fixedly connected with the second basic connecting rod (31); Driving mechanism and first drive rod (24) are in transmission connection; The said first basic connecting rod (21) is arranged on the fish plate (11); Said first drive rod (24) one ends and first toggle-action lever (22) one ends are hubbed on respectively on the first basic connecting rod (21), and said first drive rod (24) other end and first toggle-action lever (22) other end are articulated with the two ends of first connecting rod (23) respectively; Said second drive rod (34), second connecting rod (33), the second basic connecting rod (31) and second toggle-action lever (32) join end to end.
4. a kind of seat extension/retraction foot pad as claimed in claim 3 mechanism; It is characterized in that said driving mechanism comprises a rocker handle (41), one the 4th drive link (42), two guide shafts (46), 2 first drive links (44) and 2 second drive links (45); Said the 4th drive link (42) two ends are provided with non-circular link (421); Said rocker handle (41) one ends are provided with the shrinkage pool (411) that cooperates with link (421); Link (421) is located in the shrinkage pool (411); First drive link (44) one ends and second drive link (45) one ends are articulated; Said first drive link (44) other end is provided with first through hole (441) that cooperates with link (421), and said fish plate (11) one ends are provided with the perforation (112) that is used to settle the 4th drive link (42), and the 4th drive link (42) is through being located in link (421) first through hole (441) and 2 first drive link (44) interlocks; The other end of said fish plate (11) is provided with guide groove (111); Said first drive rod (24) is gone up corresponding guide groove (111) position and is provided with elongated hole (241); Said second drive link (45) other end is provided with second through hole (451); Be equipped with guide shaft (46) in said second through hole (451), elongated hole (241) and the guide groove (111), the path when said guide groove (111) shape and guide shaft (46) action is complementary.
5. a kind of seat extension/retraction foot pad as claimed in claim 4 mechanism; It is characterized in that said driving mechanism also comprises an auxiliary body (5); Said auxiliary body (5) comprises spring (51), the 3rd drive link (52) and bond post (53); Said bond post (53) is arranged on the fish plate (11); Line between the bond post (53) of fish plate (11) and perforation (112) is set to axis (6); Said spring (51) one ends are connected with bond post (53); The other end engages with the 3rd drive link (52), and said the 3rd drive link (52) one ends are connected the 3rd drive link (52) other end combined spring (51) other end with the link (421) of the 4th drive link (42); And the link position that makes the link (421) of the 3rd drive link (52) and the 4th drive link (42) is positioned between spring (51) two ends, and makes the 3rd drive link (52) driven by rocker handle (41) can making spring (51) be offset to respective axes (6) below or top position when pivoting.
6. a kind of seat extension/retraction foot pad as claimed in claim 3 mechanism; It is characterized in that said guide groove (111) rear be provided with can to guide shaft (46) spacing fold location division (113); The place ahead be provided with can be spacing to guide shaft (46) expansion location division (114), the guide shaft at two ends (46) can link together through a guide rod (43).
7. a kind of seat extension/retraction foot pad as claimed in claim 6 mechanism is characterized in that said expansion location division (114) can be set to more than one.
8. a kind of seat extension/retraction foot pad as claimed in claim 7 mechanism, it is characterized in that said fold location division (113) and launch location division (114) be set to crooked locating slot respectively downwards.
9. a kind of seat extension/retraction foot pad as claimed in claim 8 mechanism is characterized in that the corresponding guide groove of said guide shaft (46) (111) position is provided with bearing (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102918076A CN102813391A (en) | 2012-08-16 | 2012-08-16 | Telescopic foot pad mechanism of chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102918076A CN102813391A (en) | 2012-08-16 | 2012-08-16 | Telescopic foot pad mechanism of chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102813391A true CN102813391A (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102918076A Pending CN102813391A (en) | 2012-08-16 | 2012-08-16 | Telescopic foot pad mechanism of chair |
Country Status (1)
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| CN (1) | CN102813391A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103549782A (en) * | 2013-09-24 | 2014-02-05 | 鲍月娥 | Seat and functional rack |
| CN104770999A (en) * | 2015-03-28 | 2015-07-15 | 浙江永艺家具股份有限公司 | Dual-drive mechanical stretching device |
| CN105142463A (en) * | 2013-04-23 | 2015-12-09 | 李相华 | Chair capable of interlocking between back support unit and foot support unit |
| CN105286336A (en) * | 2015-08-31 | 2016-02-03 | 林长贞 | Leisure chair with footrest |
| CN105496080A (en) * | 2015-12-09 | 2016-04-20 | 海宁佳联沙发有限公司 | Portable, foldable and environment- friendly sofa |
| CN106165992A (en) * | 2016-08-27 | 2016-11-30 | 锐迈机械科技（吴江）有限公司 | A kind of sliding seat mechanical extending device and sliding seat thereof |
| CN108158260A (en) * | 2017-09-05 | 2018-06-15 | 安吉永艺尚品家具有限公司 | A kind of mechanical extending device and seat unit |
| CN109008361A (en) * | 2018-09-07 | 2018-12-18 | 中山凯美日用品有限公司 | Electronic auxiliary leisure lift chair |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142463A (en) * | 2013-04-23 | 2015-12-09 | 李相华 | Chair capable of interlocking between back support unit and foot support unit |
| CN105142463B (en) * | 2013-04-23 | 2017-05-24 | 李相华 | Chair capable of interlocking between back support unit and foot support unit |
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| CN104770999A (en) * | 2015-03-28 | 2015-07-15 | 浙江永艺家具股份有限公司 | Dual-drive mechanical stretching device |
| CN105286336B (en) * | 2015-08-31 | 2018-04-24 | 林长贞 | The Relaxing chair of one kind tool foot pad |
| CN105286336A (en) * | 2015-08-31 | 2016-02-03 | 林长贞 | Leisure chair with footrest |
| CN105496080A (en) * | 2015-12-09 | 2016-04-20 | 海宁佳联沙发有限公司 | Portable, foldable and environment- friendly sofa |
| CN106165992A (en) * | 2016-08-27 | 2016-11-30 | 锐迈机械科技（吴江）有限公司 | A kind of sliding seat mechanical extending device and sliding seat thereof |
| CN108158260A (en) * | 2017-09-05 | 2018-06-15 | 安吉永艺尚品家具有限公司 | A kind of mechanical extending device and seat unit |
| CN108158260B (en) * | 2017-09-05 | 2024-04-12 | 安吉永艺尚品家具有限公司 | Mechanical stretching device and seat unit |
| CN109008361A (en) * | 2018-09-07 | 2018-12-18 | 中山凯美日用品有限公司 | Electronic auxiliary leisure lift chair |
| CN109008361B (en) * | 2018-09-07 | 2024-06-11 | 中山凯美日用品有限公司 | Electric auxiliary leisure and uprising chair |
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| PB01 | Publication | ||
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Application publication date: 20121212 |