CN202842957U - Footrest frame adjusting structure of chair - Google Patents
Footrest frame adjusting structure of chair Download PDFInfo
- Publication number
- CN202842957U CN202842957U CN2012204789338U CN201220478933U CN202842957U CN 202842957 U CN202842957 U CN 202842957U CN 2012204789338 U CN2012204789338 U CN 2012204789338U CN 201220478933 U CN201220478933 U CN 201220478933U CN 202842957 U CN202842957 U CN 202842957U
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- China
- Prior art keywords
- footrest rack
- pin
- base
- joint piece
- adjustment structure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a chair and in particular relates to a footrest frame adjusting structure of a chair. The utility model is realized by the following technical scheme: the footrest frame adjusting structure of the chair comprises a base, a footrest frame, a performing mechanism and a tension rod structure, wherein the footrest frame is hinged to the base; the performing mechanism can enable the footrest frame to rotate relative to the base; the tension rod structure enables the performing structure to drive the footrest frame to rotate; the performing structure comprises a hinge sheet and a pushing rod, wherein the hinge sheet is rotatably connected to the base; one end of the pushing rod is hinged to the hinge sheet and the other end of the pushing rod is hinged to the footrest frame; the tension rod structure comprises a rotary rod, a rotary sheet and a connecting rod, wherein the rotary rod is rotatably connected between the two sides of the base; the rotary sheet is connected to the rotary rod and can be driven by the rotary rod to rotate; one end of the connecting rod is hinged to the hinge sheet and the other end of the connecting rod is hinged to the hinge sheet. The footrest frame adjusting structure of the chair is adjusted by rotating the rotary rod by hands, and so the operation is simple and force-saving.
Description
Technical field
The utility model relates to seat, particularly a kind of footrest rack adjustment structure of seat.
Background technology
Footrest rack adjustment structure of the prior art, be the disclosed a kind of office chair of lying of facing upward of utility model patent of CN2664487Y such as Granted publication number, its trace is to be hubbed at backrest and flexible by between the pin group, so flexible can be driven by trace and with the synchronous pivot pendulum of backrest by the pin group, and backrest and flexible elevation angle by the pin group are controlled by air pressure rod; This kind driven by backrest by the pin group, therefore can not regulate separately by the pin group, and when regulating, often need a hand operated cylinder, and the back firmly relies on backrest simultaneously, thereby cylinder is shunk, and just makes by the perk of pin group; Thereby so that in operation, comparatively require great effort, special for the people who suffers from spondylodynia, spinal column disease, inconvenience is arranged in use more.
The utility model content
The purpose of this utility model provides a kind of footrest rack adjustment structure of seat, only needs to rotate dwang with hand in the time of adjusting and gets final product, and is therefore simple to operate, and laborsaving.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of footrest rack adjustment structure of seat, comprise base, be articulated in the footrest rack of base, this kind adjustment structure also comprises execution architecture that footrest rack is rotated relative to base, can make execution architecture drive the Tiebar structure that footrest rack rotates; Described execution architecture comprises that the pin-joint piece, the end that are rotationally connected with base are articulated in the push rod that pin-joint piece and the other end are articulated in footrest rack; Described pin-joint piece rotates the place axis with hinged place, the pin-joint piece of push rod relative to base, has spacing between the two; Described Tiebar structure comprises the dwang that is rotationally connected with between the described base both sides, is connected in dwang and can be articulated in by revolving fragment, an end of dwang driven rotary the connecting rod that revolving fragment and the other end are articulated in pin-joint piece; The junction of the junction of described dwang and revolving fragment, described revolving fragment and connecting rod has spacing between the two.
When launching footrest rack, because the junction of junction, revolving fragment and the connecting rod of dwang and revolving fragment has spacing between the two, therefore by rotating dwang, make connecting rod promote pin-joint piece and rotate, launch thereby make push rod drive footrest rack; Simultaneously, because the hinged place of pin-joint piece and push rod, pin-joint piece rotates the place axis relative to base, has spacing between the two, therefore, in the process that footrest rack launches, one side shifting of rotating the place axis from pin-joint piece when the hinged place of pin-joint piece and push rod is during to opposite side, even the stressed downward pressure of footrest rack, after being equivalent to leg and being positioned on the footrest rack, the pressure that leg produces footrest rack, pin-joint piece still has along the rotation trend of pin-joint piece rotation direction in the footrest rack expansion process, yet owing to be subject to the pulling force of connecting rod, pin-joint piece can not rotate along pin-joint piece rotation direction in the footrest rack expansion process again, thereby, make footrest rack be in deployed condition; Otherwise, when drawing footrest rack in, rotate dwang, force the pin-joint piece homing, thereby draw footrest rack in; Therefore, footrest rack can be regulated separately, and is simple to operate laborsaving, only needs to rotate dwang and gets final product, and it is auxiliary more to need not human body back; In order to make the rotation dwang more laborsaving, as preferably, can be provided with the handle of being convenient to hand at dwang.
As of the present utility model preferred, described push rod is arcuation; The line in the hinged place of described base and footrest rack to the center of circle of described push rod is through push rod.
Above-mentioned setting can make footrest rack after expansion, and the expansion amplitude that keeps can be large as much as possible.
As of the present utility model preferred, slidely connect toe board on the described footrest rack.
As of the present utility model preferred, described footrest rack is provided with the turning arm that the middle part is articulated in footrest rack; One end of turning arm is hinged with the gangbar that is articulated in base; The other end of turning arm is hinged with the push arm that is connected in described toe board.
Make the release of toe board and expansion and the gathering action interlock of retraction action and footrest rack.
As of the present utility model preferred, the hinged place of described turning arm and gangbar apart from the distance of the hinged place of turning arm and footrest rack less than the hinged place of described turning arm and the push arm distance apart from the hinged place of turning arm and footrest rack.
Increase as much as possible the release amplitude of toe board.
As of the present utility model preferred, described base is provided be used to the pin that limits described pin-joint piece rotational angle.
After footrest rack launched, pin-joint piece contacted at pin, thereby stoped pin-joint piece to be rotated further along pin-joint piece rotation direction in the footrest rack expansion process, thus for connecting rod shared stressed, the service life that is conducive to improve Tiebar structure.
As of the present utility model preferred, described pin-joint piece has two, is rotationally connected with respectively the base both sides; Described push rod has two, and is provided with firm bar between two described push rods.
Make push rod in the frequent expansion and gathering process of footrest rack, can not produce the displacement of rotating the place axis direction along pin-joint piece, thereby improved the stability of this kind footrest rack adjustment structure, reliability.
As of the present utility model preferred, described base is provided with pole between the both sides; Described pin-joint piece is connected in described pole and can rotates around described strut lengths direction place axis.
As of the present utility model preferred, described footrest rack is provided with slide rail; Described toe board both sides have the chute that is placed in slide rail.
As of the present utility model preferred, described connecting rod is arcuation, and nock towards with the nock of described push rod towards consistent.
Make when rotating dwang more laborsaving.
In sum, the utlity model has following beneficial effect: the utility model is simple in structure, and is easy to operate and laborsaving.
Description of drawings
Fig. 1 is the example structure schematic diagram.
Among the figure, 1, base, 2, footrest rack, 3, execution architecture, 4, Tiebar structure, 31, pole, 32, pin-joint piece, 33, push rod, 41, dwang, 411, handle, 42, revolving fragment, 43, connecting rod, 21, toe board, 22, slide rail, 211, chute, 51, turning arm, 52, gangbar, 53, push arm, 34, pin, 35, firm bar.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present utility model.
Embodiment: a kind of footrest rack adjustment structure of seat, as shown in Figure 1, comprise base 1, be articulated in base 1 footrest rack 2, can make execution architecture 3 that footrest rack 2 rotates relative to base 1, can make execution architecture 3 drive the Tiebar structure 4 that footrest racks 2 rotate;
Described execution architecture 3 comprises the pole 31 of being located between base 1 both sides, the place, two ends of pole 31 all is provided with pin-joint piece 32, pin-joint piece 32 can rotate around pole 31 length direction place axis, be connected with push rod 33 between pin-joint piece 32 and the footrest rack 2, push rod 33 1 ends are articulated in pin-joint piece 32 and the other end is articulated in footrest rack 2; The junction of the hinged place of pin-joint piece 32 and push rod 33, pin-joint piece 32 and pole 31 has spacing between the two.
Described Tiebar structure 4 comprises the dwang 41 that is rotationally connected with between described base 1 both sides, dwang 41 1 ends have the handle 411 of being convenient to hand, also being provided with on the dwang 41 can be by the revolving fragment 42 of dwang 41 driven rotary, be connected with connecting rod 43 between revolving fragment 42 and the pin-joint piece 32, an end of connecting rod 43 is articulated in revolving fragment 42 and the other end is articulated in pin-joint piece 32; The junction of the junction of dwang 41 and revolving fragment 42, revolving fragment 42 and connecting rod 43 has spacing between the two.
When launching footrest rack 2, because the junction of the junction of dwang 41 and revolving fragment 42, revolving fragment 42 and connecting rod 43 has spacing between the two, therefore by rotating dwang 41, make connecting rod 43 promote pin-joint piece 32 and rotate, launch thereby make push rod 33 drive footrest rack 2; Simultaneously, because the hinged place of pin-joint piece 32 and push rod 33, pin-joint piece 32 and pole 31 junctions, has spacing between the two, therefore, in the process that footrest rack 2 launches, when the hinged place of pin-joint piece 32 and push rod 33 from a side shifting of pole 31 length direction place axis during to opposite side, even footrest rack 2 stressed downward pressure, after being equivalent to leg and being positioned on the footrest rack 2, the pressure that leg produces footrest rack 2, pin-joint piece 32 still has along the rotation trend of pin-joint piece 32 rotation directions in footrest rack 2 expansion processes, yet owing to be subject to the pulling force of connecting rod 32, pin-joint piece 32 can not rotate along pin-joint piece 32 rotation directions in footrest rack 2 expansion processes again, thereby, make footrest rack 2 be in deployed condition; Otherwise, when drawing footrest rack 2 in, rotate dwang 41, force pin-joint piece 32 homings, thereby draw footrest rack 2 in.
For the expansion amplitude that makes footrest rack 2 is large as much as possible, push rod 33 is arcuation; And the line in hinged place to the center of circle of push rod 33 of base 1 and footrest rack 2 is through push rod 33; Thereby make footrest rack 2 after expansion, the amplitude that keeps, be that the expansion amplitude that keeps when being subject to shank pressure of footrest rack 2 is large as much as possible, also namely under this expansion amplitude, the pin joint of the pin joint of the tie point that pin-joint piece 32 and pole are 31, pin-joint piece 32 and push rod 33, push rod 33 and footrest rack 2, the three is in same straight line as much as possible.
Slidely connect toe board 21 on the footrest rack 2; Footrest rack 2 is provided with slide rail 22; Described toe board 21 both sides have the chute 211 that is placed in slide rail 22; Footrest rack 2 is provided with the turning arm 51 that the middle part is articulated in footrest rack 2; One end of turning arm 51 is hinged with the gangbar 52 that is articulated in base 1; The other end of turning arm 51 is hinged with the push arm 53 that is connected in described toe board 21; The hinged place of turning arm 51 and gangbar 52 apart from the distance of turning arm 51 and the hinged place of footrest rack 2 less than the hinged place of described turning arm 51 and push arm 53 apart from the distance of turning arm 51 with the hinged place of footrest rack 2.
Be provided with firm bar 35 between two push rods 33, thereby make push rod 33 in the frequent expansion and gathering process of footrest rack 2, can not produce along the displacement on pole 31 length directions, thereby improved the stability of this kind footrest rack adjustment structure, reliability.
For further making rapid operation, connecting rod 43 is arcuation, and nock towards with the nock of described push rod 33 towards consistent.
Claims (10)
1. the footrest rack adjustment structure of a seat, comprise base (1), be articulated in the footrest rack (2) of base (1), it is characterized in that this kind adjustment structure also comprises the execution architecture (3) that footrest rack (2) is rotated relative to base (1), the Tiebar structure (4) that execution architecture (3) drive footrest rack (2) is rotated; Described execution architecture (3) comprises that the pin-joint piece (32), the end that are rotationally connected with base (1) are articulated in the push rod (33) that pin-joint piece (32) and the other end are articulated in footrest rack (2); Described pin-joint piece (32) rotates the place axis with hinged place, the pin-joint piece (32) of push rod (33) relative to base (1), has spacing between the two; Described Tiebar structure (4) comprises the dwang (41) that is rotationally connected with between described base (1) both sides, is connected in dwang (41) and can be articulated in by revolving fragment (42), an end of dwang (41) driven rotary the connecting rod (43) that revolving fragment (42) and the other end are articulated in pin-joint piece (32); The junction of the junction of described dwang (41) and revolving fragment (42), described revolving fragment (42) and connecting rod (43) has spacing between the two.
2. the footrest rack adjustment structure of a kind of seat according to claim 1 is characterized in that, described push rod (33) is arcuation; The line in the hinged place of described base (1) and footrest rack (2) to the center of circle of described push rod (33) is through push rod (33).
3. the footrest rack adjustment structure of a kind of seat according to claim 1 is characterized in that, slidely connects toe board (21) on the described footrest rack (2).
4. the footrest rack adjustment structure of a kind of seat according to claim 2 is characterized in that, described footrest rack (2) is provided with the turning arm (51) that the middle part is articulated in footrest rack (2); One end of turning arm (51) is hinged with the gangbar (52) that is articulated in base (1); The other end of turning arm (51) is hinged with the push arm (53) that is connected in described toe board (21).
5. the footrest rack adjustment structure of a kind of seat according to claim 3, it is characterized in that, the hinged place of described turning arm (51) and gangbar (52) apart from the distance of turning arm (51) and the hinged place of footrest rack (2) less than the hinged place of described turning arm (51) and push arm (53) apart from the distance of turning arm (51) with the hinged place of footrest rack (2).
6. the footrest rack adjustment structure of a kind of seat according to claim 1 is characterized in that, described base (1) is provided be used to the pin that limits described pin-joint piece rotational angle (34).
7. the footrest rack adjustment structure of a kind of seat according to claim 1 is characterized in that, described pin-joint piece (32) has two, is rotationally connected with respectively base (1) both sides; Described push rod (33) has two, and is provided with firm bar (35) between two described push rods (33).
8. according to claim 1 or the footrest rack adjustment structure of 7 described a kind of seats, it is characterized in that described base (1) is provided with pole (31) between the both sides; Described pin-joint piece (32) is connected in described pole (31) and can rotates around described pole (31) length direction place axis.
9. according to claim 3 or the footrest rack adjustment structure of 4 described a kind of seats, it is characterized in that described footrest rack (2) is provided with slide rail (22); Described toe board (21) both sides have the chute (211) that is placed in slide rail (22).
10. the footrest rack adjustment structure of a kind of seat according to claim 2 is characterized in that, described connecting rod (43) is arcuation, and nock towards with the nock of described push rod (33) towards consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204789338U CN202842957U (en) | 2012-09-19 | 2012-09-19 | Footrest frame adjusting structure of chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204789338U CN202842957U (en) | 2012-09-19 | 2012-09-19 | Footrest frame adjusting structure of chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202842957U true CN202842957U (en) | 2013-04-03 |
Family
ID=47974215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204789338U Expired - Fee Related CN202842957U (en) | 2012-09-19 | 2012-09-19 | Footrest frame adjusting structure of chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202842957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102860695A (en) * | 2012-09-19 | 2013-01-09 | 浙江恒林椅业股份有限公司 | Foot rest adjusting structure for seat |
| CN105541100A (en) * | 2016-01-20 | 2016-05-04 | 苏州沃森优金电子科技有限公司 | Clamping device of two-point clamping type horizontal transmitting optical fiber perform rod |
-
2012
- 2012-09-19 CN CN2012204789338U patent/CN202842957U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102860695A (en) * | 2012-09-19 | 2013-01-09 | 浙江恒林椅业股份有限公司 | Foot rest adjusting structure for seat |
| CN102860695B (en) * | 2012-09-19 | 2015-05-27 | 浙江恒林椅业股份有限公司 | Foot rest adjusting structure for seat |
| CN105541100A (en) * | 2016-01-20 | 2016-05-04 | 苏州沃森优金电子科技有限公司 | Clamping device of two-point clamping type horizontal transmitting optical fiber perform rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20160919 |