CN204930966U - A kind of flexible leg rest mechanism of seat - Google Patents
A kind of flexible leg rest mechanism of seat Download PDFInfo
- Publication number
- CN204930966U CN204930966U CN201520545686.2U CN201520545686U CN204930966U CN 204930966 U CN204930966 U CN 204930966U CN 201520545686 U CN201520545686 U CN 201520545686U CN 204930966 U CN204930966 U CN 204930966U
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- frame plate
- short crank
- hinged
- plectrum
- hinged place
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Abstract
The utility model relates to office seats field, and a kind of flexible leg rest mechanism of seat, comprises the footrest rack being arranged on seat support lower end, and is arranged on the toe board on footrest rack; Described footrest rack comprises the frame plate be arranged on seat support lower surface, and middle part is hinged on the short crank on frame plate, and end is hinged on the grillage bar on frame plate, and both ends are hinged on the link rod on short crank, grillage bar respectively; Described toe board is arranged on grillage bar, and grillage bar to be linked short crank by link rod, and frame plate is also hinged with the plectrum for stirring and limit short crank, plectrum can rotate along its hinged place e, and short crank is within the radius of turn of plectrum.The flexible leg rest mechanism of this seat is self-locking leg rest mechanism, and simple and stable structure is easy to operate, and front elongation is enough, and can give shank optimal support, leg pressure of fully releiving, stimulate circulation, what allow people sit is more healthy.
Description
Technical field
The utility model relates to office seats field, particularly relates to a kind of flexible leg rest mechanism of seat.
Background technology
Traditional office chair is main mainly with seat greatly, and seldom with toe board, office clan can not fully be loosened when rest.And part seat sold in the market is with manual pin support mechanism, but the assembling of this kind of mechanism unlocks trouble, bloatedness, hides attractive in appearance not, and front elongation is inadequate, and stability is bad, and the experience of consumer is not good.
Summary of the invention
In order to solve the problem, the purpose of this utility model is the flexible leg rest mechanism providing a kind of seat, the flexible leg rest mechanism of this seat is self-locking leg rest mechanism, simple and stable structure, easy to operate, front elongation is enough, can give shank optimal support, can fully releive leg pressure, stimulate circulation, what allow people sit is more healthy.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
A flexible leg rest mechanism for seat, comprises the footrest rack being arranged on seat support lower end, and is arranged on the toe board on footrest rack; Described footrest rack comprises the frame plate be arranged on seat support lower surface, and middle part is hinged on the short crank on frame plate, and end is hinged on the grillage bar on frame plate, and both ends are hinged on the link rod on short crank, grillage bar respectively; Described toe board is arranged on grillage bar, and grillage bar to be linked short crank by link rod, and frame plate is also hinged with the plectrum for stirring and limit short crank, plectrum can rotate along its hinged place e, and short crank is within the radius of turn of plectrum; As the hinged place a of short crank and frame plate, the hinged place b of short crank and link rod, when the hinged place c of link rod and grillage bar is on same straight line successively, the end of short crank props up plectrum, and grillage bar turn to forward work self-locking station along its hinged place, end d; As the hinged place b of short crank and link rod, the hinged place a of short crank and frame plate, when the hinged place c of link rod and grillage bar is on same straight line successively, the end of short crank props up plectrum, and grillage bar turn to downwards along its hinged place, end d and draws self-locking station in.
As preferably, be also provided with the first reset tension spring between the hinged place a of described short crank and frame plate and frame plate, between the free end of plectrum and frame plate, be also provided with the second reset tension spring.First reset tension spring and the second reset tension spring are respectively used to promote short crank, plectrum resets, and when footrest rack is in gathering self-locking state, short crank crosses dead point voluntarily under the effect of the first reset tension spring, withstands plectrum, stable support.
As preferably, described plectrum is by running through the axostylus axostyle location be arranged on frame plate, and plectrum and axostylus axostyle are connected and fixed, and the end of axostylus axostyle is provided with handle, and handle is in outside frame plate; During use, operator can control plectrum by rotary handle and rotate.
As preferably, one end of described toe board is hinged on by plate axle on the free end of grillage bar, and toe board can rotate along plate axle; Grillage bar is provided with spacing hole, and spacing hole is in the semicircular arc through hole centered by plate axle, and toe board is provided with the limited block matched with spacing hole.During use, toe board, centered by plate axle, is that track rotates with spacing hole, increase toe board castor from while, reduce toe board retraction space.
As preferably, described grillage bar is also provided with night bolt, the side of toe board is provided with the socket matched with night bolt, and night bolt mates with socket circular arc and offsets.When footrest rack is in gathering self-locking state, footrest rack is spacing fixing by night bolt, prevents footrest rack from rotating; And when footrest rack need open use, can artificial force, circular arc coupling can be removed by Directly solution.
The utility model adopts technique scheme, the flexible leg rest mechanism of this seat is self-locking leg rest mechanism, footrest rack specifically adopts transmission four-bar mechanism, it comprises frame plate, short crank, grillage bar and link rod, and toe board is arranged on grillage bar, and grillage bar to be linked short crank by link rod, stretch out by the artificial toe board that drives and retract during use, due to the kinetic characteristic that four-bar mechanism has, form two dead-centre positions at rounding state and duty, can be used for doing the locking device of mechanism; Namely as the hinged place a of short crank and frame plate, the hinged place b of short crank and link rod, when the hinged place c of link rod and grillage bar is on same straight line successively, the end of short crank props up plectrum, grillage bar turn to forward work self-locking station along its hinged place, end d, under work self-locking state, toe board is stretched out forward for supporting user's calf, reaches the object of rest; As the hinged place b of short crank and link rod, the hinged place a of short crank and frame plate, when the hinged place c of link rod and grillage bar is on same straight line successively, the end of short crank props up plectrum, grillage bar turn to downwards along its hinged place, end d and draws self-locking station in, and under drawing self-locking state in, toe board is accommodated in seat support lower end.Therefore, this self-locking leg rest mechanism adopts mechanism's dead angle principle, has simple and stable structure, easy to operate, and front elongation is enough, and can give shank optimal support, leg pressure of fully releiving, stimulate circulation, what allow people sit is more healthy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is working state schematic representation of the present utility model.
Fig. 3 is the rounding state schematic diagram of footrest rack.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.
The flexible leg rest mechanism of a kind of seat as shown in Fig. 1 ~ Fig. 3, comprises the footrest rack being arranged on seat support 1 lower end, and is arranged on the toe board 2 on footrest rack.Described footrest rack comprises the frame plate 31 be arranged on seat support 1 lower surface, and middle part is hinged on the short crank 32 on frame plate 31, and end is hinged on the grillage bar 34 on frame plate 31, and both ends are hinged on the link rod 33 on short crank 32, grillage bar 34 respectively.Described toe board 2 is arranged on grillage bar 34, and grillage bar 34 to be linked short crank 32 by link rod 33, is also provided with the first reset tension spring 41 between the hinged place a of short crank 32 and frame plate 31 and frame plate 31.Described frame plate 31 is also hinged with the plectrum 51 for stirring and limit short crank 32, plectrum 51 is located by running through the axostylus axostyle 52 be arranged on frame plate 31, plectrum 51 and axostylus axostyle 52 are connected and fixed, the end of axostylus axostyle 52 is provided with handle 53, handle 53 is in outside frame plate 31, is also provided with the second reset tension spring 42 between the free end of plectrum 51 and frame plate 31.During use, operator can control plectrum 51 by rotary handle 53, and plectrum 51 can along its hinged place e(and axostylus axostyle 52) rotate, short crank 32 is within the radius of turn of plectrum 51; And the first reset tension spring 41 and the second reset tension spring 42 are respectively used to promote short crank 32, plectrum 51 resets, when footrest rack is in gathering self-locking state, short crank 32 crosses dead point voluntarily under the effect of the first reset tension spring 41, withstands plectrum 51, stable support.
Under this structure, the flexible leg rest mechanism of this seat is self-locking leg rest mechanism, footrest rack specifically adopts transmission four-bar mechanism, it comprises frame plate 31, short crank 32, grillage bar 34 and link rod 33, toe board 2 is arranged on grillage bar 34, grillage bar 34 to be linked short crank 32 by link rod 33, stretch out by the artificial toe board 2 that drives and retract during use, due to the kinetic characteristic that four-bar mechanism has, two dead-centre positions are formed at rounding state and duty, and rely on plectrum 51 position-limiting actions, reaction is become with the external force moment pressure of leg (gravity with), can move by constraint mechanism like this, play self-locking action.Namely as short crank 32 and the hinged place a of frame plate 31, the hinged place b of short crank 32 and link rod 33, when link rod 33 is on same straight line successively with the hinged place c of grillage bar 34, the end of short crank 32 props up plectrum 51, grillage bar 34 turn to forward work self-locking station along its hinged place, end d, under work self-locking state, toe board 2 is stretched out forward for supporting user's calf, reaches the object of rest; As short crank 32 and the hinged place b of link rod 33, the hinged place a of short crank 32 and frame plate 31, when link rod 33 is on same straight line successively with the hinged place c of grillage bar 34, the end of short crank 32 props up plectrum 51, grillage bar 34 turn to downwards along its hinged place, end d and draws self-locking station in, and under drawing self-locking state in, toe board 2 is accommodated in seat support 1 lower end.Therefore, this self-locking leg rest mechanism adopts mechanism's dead angle principle, has simple and stable structure, easy to operate, and front elongation is enough, and can give shank optimal support, leg pressure of fully releiving, stimulate circulation, what allow people sit is more healthy.
One end of described toe board 2 is hinged on by plate axle 61 on the free end of grillage bar 34, and toe board 2 can rotate along plate axle 61; Grillage bar 34 is provided with spacing hole 341, and spacing hole 341 is in the semicircular arc through hole centered by plate axle 61, and toe board 2 is provided with the limited block 62 matched with spacing hole 341; Described grillage bar 34 is also provided with night bolt 343, and the side of toe board 2 is provided with the socket matched with night bolt 343, and night bolt 343 mates with socket circular arc and offsets.During use, toe board 2 centered by plate axle 61, with spacing hole 341 for track rotates, increase toe board 2 castor from while, reduce toe board 2 retraction space.When footrest rack is in gathering self-locking state, footrest rack is spacing fixing by night bolt 343, prevents footrest rack from rotating; And when footrest rack need open use, can artificial force, circular arc coupling can be removed by Directly solution.
Claims (5)
1. a flexible leg rest mechanism for seat, comprises the footrest rack being arranged on seat support lower end, and is arranged on the toe board on footrest rack; It is characterized in that: described footrest rack comprises the frame plate be arranged on seat support lower surface, and middle part is hinged on the short crank on frame plate, and end is hinged on the grillage bar on frame plate, and both ends are hinged on the link rod on short crank, grillage bar respectively; Described toe board is arranged on grillage bar, and grillage bar to be linked short crank by link rod, and frame plate is also hinged with the plectrum for stirring and limit short crank, plectrum can rotate along its hinged place e, and short crank is within the radius of turn of plectrum; As the hinged place a of short crank and frame plate, the hinged place b of short crank and link rod, when the hinged place c of link rod and grillage bar is on same straight line successively, the end of short crank props up plectrum, and grillage bar turn to forward work self-locking station along its hinged place, end d; As the hinged place b of short crank and link rod, the hinged place a of short crank and frame plate, when the hinged place c of link rod and grillage bar is on same straight line successively, the end of short crank props up plectrum, and grillage bar turn to downwards along its hinged place, end d and draws self-locking station in.
2. the flexible leg rest mechanism of a kind of seat according to claim 1, is characterized in that: be also provided with the first reset tension spring between the hinged place a of described short crank and frame plate and frame plate, be also provided with the second reset tension spring between the free end of plectrum and frame plate.
3. the flexible leg rest mechanism of a kind of seat according to claim 2, is characterized in that: described plectrum is by running through the axostylus axostyle location be arranged on frame plate, and plectrum and axostylus axostyle are connected and fixed, and the end of axostylus axostyle is provided with handle, and handle is in outside frame plate.
4. the flexible leg rest mechanism of a kind of seat according to claim 1, is characterized in that: one end of described toe board is hinged on by plate axle on the free end of grillage bar, and toe board can rotate along plate axle; Grillage bar is provided with spacing hole, and spacing hole is in the semicircular arc through hole centered by plate axle, and toe board is provided with the limited block matched with spacing hole.
5. the flexible leg rest mechanism of a kind of seat according to claim 4, is characterized in that: described grillage bar is also provided with night bolt, and the side of toe board is provided with the socket matched with night bolt, and night bolt mates with socket circular arc and offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545686.2U CN204930966U (en) | 2015-07-24 | 2015-07-24 | A kind of flexible leg rest mechanism of seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545686.2U CN204930966U (en) | 2015-07-24 | 2015-07-24 | A kind of flexible leg rest mechanism of seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204930966U true CN204930966U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520545686.2U Active CN204930966U (en) | 2015-07-24 | 2015-07-24 | A kind of flexible leg rest mechanism of seat |
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| Country | Link |
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| CN (1) | CN204930966U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105661989A (en) * | 2016-04-25 | 2016-06-15 | 丁亮 | Folding foot placing device |
| CN107536310A (en) * | 2016-06-29 | 2018-01-05 | 杭州奇栖正科技开发有限公司 | A kind of chair foot rest device |
| CN107684269A (en) * | 2016-08-03 | 2018-02-13 | 杭州奇栖正科技开发有限公司 | A kind of multiposition chair footrest rack |
| CN108294526A (en) * | 2017-01-11 | 2018-07-20 | 杭州奇栖正科技开发有限公司 | Multiposition chair footrest rack |
| CN108338571A (en) * | 2018-05-15 | 2018-07-31 | 周辉 | A kind of manual seat leg rest mechanism |
-
2015
- 2015-07-24 CN CN201520545686.2U patent/CN204930966U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105661989A (en) * | 2016-04-25 | 2016-06-15 | 丁亮 | Folding foot placing device |
| CN105661989B (en) * | 2016-04-25 | 2019-02-01 | 丁亮 | A kind of folding foot rest device |
| CN107536310A (en) * | 2016-06-29 | 2018-01-05 | 杭州奇栖正科技开发有限公司 | A kind of chair foot rest device |
| CN107684269A (en) * | 2016-08-03 | 2018-02-13 | 杭州奇栖正科技开发有限公司 | A kind of multiposition chair footrest rack |
| CN108294526A (en) * | 2017-01-11 | 2018-07-20 | 杭州奇栖正科技开发有限公司 | Multiposition chair footrest rack |
| CN108338571A (en) * | 2018-05-15 | 2018-07-31 | 周辉 | A kind of manual seat leg rest mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |