CN101779870A - Chair tray reset torsion spring torque force adjusting mechanism and chair tray thereof - Google Patents
Chair tray reset torsion spring torque force adjusting mechanism and chair tray thereof Download PDFInfo
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- CN101779870A CN101779870A CN200910095496A CN200910095496A CN101779870A CN 101779870 A CN101779870 A CN 101779870A CN 200910095496 A CN200910095496 A CN 200910095496A CN 200910095496 A CN200910095496 A CN 200910095496A CN 101779870 A CN101779870 A CN 101779870A
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- fixed axis
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Abstract
The invention relates to a chair tray reset torsion spring torque force adjusting mechanism and a chair tray thereof, belonging to the technical field of improved chair tray structure. The mechanism comprises a reset torsion spring which is sheathed on a pivot of the chair tray; a worm gear and a worm which are meshed with each other are arranged besides the reset torsion spring; the center of the worm gear is provided with a central screw hole which is matched with one end of a pull rod by screw thread, and the other end of the pull rod is connected with one end of the reset torsion spring; an extension arm is formed by the worm; the worm gear can be driven to rotate by rotating the worm by using the extension arm; the worm gear is matched with the pull rod by screw thread so as to lead the pull rod to move along the axial direction; when one end of the reset torsion spring is driven to rotate towards the tightening direction of the reset torsion spring by the axial movement of the pull rod, the torque force of the reset torsion spring is enhanced; and on the contrary, when one end of the reset torsion spring rotates along the direction opposite to the loosening direction of the reset torsion spring, the torque force of the reset torsion spring is reduced.
Description
Technical field
The present invention relates to a kind of chair tray reset torsion spring torque force governor motion and chair tray thereof, belong to the technical field of chair tray architecture advances.
Technical background
Chair tray with seat support elevating function, seat support reclining and chair back reclining function generally includes and is used for the mid-game group that is connected with air pressure rod, the deep bid group of renovating and being used for being connected with seat support that is used for being connected with the chair back, at the pivot that connects deep bid group and mid-game group, be connected on the pivot of renovating with the deep bid group and be provided with the reduction torsion spring that is used to reset usually.Reduction torsion spring is in the variation that will take place through its torsion behind certain access times to a certain extent, most chair trays are not used for mechanism that the torsion of reduction torsion spring is regulated in the prior art, thereby the torsion that causes torsion spring is excessive or too small, has caused the inconvenience of using.
Summary of the invention
The object of the invention is to provide a kind of and can regulates the torsion of torsion spring, chair tray reset torsion spring torque force governor motion and chair tray thereof easy to use and operate, solve most chair trays that prior art exists and be not used for mechanism that the torsion of reduction torsion spring regulated, thereby the torsion that causes reduction torsion spring is excessive or too small, has caused the problems of using such as inconvenience.
Above-mentioned technical purpose of the present invention mainly solves by the following technical programs: it comprises the reduction torsion spring that is sheathed on the chair tray pivot, described reduction torsion spring side is provided with intermeshing worm gear and worm screw, described worm gear center is provided with screwed hole of centre, the screwed hole of centre of worm gear cooperates with the threaded one end of pull bar, the other end of pull bar is connected with described reduction torsion spring one end, described worm screw is formed with the extension handle, can drive the worm gear rotation by extending the handle rotary worm, the threaded engagement of worm gear and pull bar can cause pull bar to move axially, when the direction that an end that drives reduction torsion spring when moving axially of pull bar tightens up to reduction torsion spring was rotated, the torsion of reduction torsion spring strengthened; Otherwise when an end of reduction torsion spring rotated along the direction of loosening in contrast to reduction torsion spring, the torsion of reduction torsion spring reduced.The present invention comes the torsion of reduction torsion spring is regulated by worm-and-wheel gear, the torsion of reduction torsion spring can be adjusted to comparatively suitable degree, thereby guaranteed the stability of this chair tray performance, on the other hand, the present invention adopts worm-and-wheel gear to regulate concerning the user, also comparatively easily laborsaving, the convenient use.
As preferably, this end that described pull bar links to each other with reduction torsion spring is hook formation, and pull bar links to each other with reduction torsion spring by hook formation.Wherein, pull bar adopts hook formation to be connected with an end of reduction torsion spring, and it is comparatively convenient to assemble.Also can adopt alternate manner flexible connections such as hinged between pull bar and the reduction torsion spring end.
As preferably, be welding fixed connection structure or integrative-structure between the end of described pull bar and reduction torsion spring.
As preferably, described worm and gear is covered with shell outward.Wherein, shell can play the dustproof effect.
Chair tray, comprise and be used for the deep bid group that is connected with seat support, what be used for being connected with the chair back renovates and the mid-game group that is used for being connected with air pressure rod, described mid-game group and deep bid group are pivotally connected, on first pivot that connects mid-game group and deep bid group, be arranged with first torsion spring, it is characterized in that described reduction torsion spring side is provided with intermeshing worm gear and worm screw, described worm gear center is provided with screwed hole of centre, the screwed hole of centre of worm gear cooperates with the threaded one end of pull bar, the other end of pull bar is connected with described reduction torsion spring one end, described worm screw is formed with the extension handle, the extension handle of described worm screw extends to outside the deep bid group side is convenient to rotary worm, can drive the worm gear rotation by extending the handle rotary worm, the threaded engagement of worm gear and pull bar can cause pull bar to move axially, when the direction that an end that drives reduction torsion spring when moving axially of pull bar tightens up to reduction torsion spring was rotated, the torsion of reduction torsion spring strengthened; Otherwise when an end of reduction torsion spring rotated along the direction of loosening in contrast to reduction torsion spring, the torsion of the torsion spring that resets reduced.The present invention comes the torsion of first torsion spring that is used for the deep bid group is resetted is regulated by worm-and-wheel gear, the torsion of first torsion spring can be adjusted to comparatively suitable degree, thereby guaranteed the stability of performance of the present invention, on the other hand, the present invention adopts worm-and-wheel gear to regulate concerning the user, also comparatively easily laborsaving, the convenient use.
As preferably, describedly renovate pivotally connected and be arranged with second torsion spring being connected on second pivot of renovating with the deep bid group with the deep bid group, described renovating is provided with first fixed axis parallel with second pivot, described deep bid group is provided with second fixed axis parallel with first fixed axis, the first movable friction plate group, one end is rotatably connected on first fixed axis by circular hole, the other end of the described first movable friction plate group is slidingly connected on second fixed axis by a bar-shaped trough, the friction plate of being located at the first static friction sheet group on second fixed axis is alternately distributed between the first movable friction plate group, it is hinged by an end of first eccentric block and second fixed axis to be positioned at the outer end of renovating joystick of deep bid group, the connecting portion of second fixed axis and first eccentric block is provided with first overcoat outward, pull and renovate joystick and can control and drive second fixed axis and move axially, and then control the first static friction sheet and the first movable friction plate group closely cooperates or matched in clearance.Wherein, between the first movable friction plate group and the first static friction sheet, be under the state of matched in clearance, connecting renovating of the chair back is subjected to when using then back by the reset force of the power or second torsion spring, can slide relatively between first moving bar-shaped trough and second fixed axis of wiping on the sheet, connect the chair back of renovating and to carry out stepless reclining adjusting; When the chair back of renovating when connection is adjusted to proper angle, pull and renovate joystick and make between the first movable friction plate group and the first static friction sheet and be in close-fitting state, can not slide relatively between the first movable friction plate group and second fixed axis, this moment, the chair back was promptly locked with respect to the angle between the seat support that connects the deep bid group.
As preferably, described deep bid group is provided with the 3rd fixed axis, described mid-game group is provided with the 4th fixed axis, the second movable friction plate group, one end is rotationally connected by circular hole on the 3rd fixed axis, the other end of the described second movable friction plate group is slidingly connected on the 4th fixed axis by bar-shaped trough, the friction plate that is fixed on the second static friction sheet group on the 4th fixed axis is arranged alternately between the movable friction plate of the second movable friction plate group, be sheathed on an end of the stage clip on the 4th fixed axis and an end in contact of the second static friction sheet group, the other end of described stage clip contacts with second eccentric block, the second eccentric block eccentric rotary is connected in second overcoat, second overcoat and mid-game group are fixed, deep bid joystick one end and second eccentric block are fixed, pull the deep bid joystick and can make stage clip be in compressive state or free transition, whether move thereby control between the second movable friction plate group and the 4th fixed axis.Wherein, when compression spring when being in compressive state, be in by relative state of locking between the second movable friction plate group and the second static friction sheet, locked by relative between the seat support that connects the deep bid group and the mid-game group of connection air pressure rod, the reclining angle of seat support is locked; And when the compression spring is in free state, the second movable friction plate group can be by its end bar-shaped trough and the 4th fixed axis between relative slip, when the deep bid group is subjected to acting on the reset response power of the active force on the seat support or first torsion spring from the user, can relatively rotate around first pivot between deep bid group and the mid-game group, the reclining angle that promptly connects the seat support of deep bid group is in the state of can stepless reclining regulating.
As preferably, be rotatably connected to the original state joystick on the described deep bid group, the position that the original state joystick is positioned at the deep bid group is provided with external screw thread, slide block with internal thread hole is threaded with the original state joystick, described slide block cooperates by lozenges with the original state regulating block, described original state regulating block is by an inclined-plane and mid-game set of contact, rotation original state regulating handle can drive slide block and move, slide block can drive the height of original state regulating block with the inclined-plane of change original state regulating block and mid-game set of contact, thereby can regulate the initial reclining angle that connects deep bid group seat support.
As preferably, described mid-game group is provided with the air pressure rod joystick, the inner oblique pressure head that forms the control air pressure rod down of described air pressure rod joystick.
Therefore, the present invention has and can regulate the torsion of torsion spring, characteristics such as easy to use and operation.
Description of drawings
Fig. 1 is a kind of structural representation of chair tray reset torsion spring torque force governor motion of the present invention;
Fig. 2 is the fit structure schematic diagram of worm and gear of the present invention;
Fig. 3 is a kind of assembly structure schematic diagram of reduction torsion spring on the chair tray;
Fig. 4 is a kind of assembly structure schematic diagram of chair tray reset torsion spring torque force governor motion of the present invention on chair tray;
A kind of sectional structure schematic diagram of Fig. 5 chair tray reset torsion spring torque force governor motion of the present invention on chair tray;
Fig. 6 is the structural representation of chair tray mid-game group of the present invention;
Fig. 7 is the another kind of assembly structure schematic diagram of chair tray reset torsion spring torque force governor motion of the present invention on chair tray.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: as Fig. 3, Fig. 4 and shown in Figure 5, chair tray comprises and is used for the deep bid group 1 that is connected with seat support, be used for being connected with the chair back renovate 2 with the mid-game group 3 that is used for being connected with air pressure rod, mid-game group 3 is pivotally connected with deep bid group 1, on first pivot 4 that connects mid-game group 3 and deep bid group 1, be arranged with first torsion spring 5, first torsion spring, the 5 other pull bars 6 that are provided with, pull bar 6 comprises a hook-shaped end 61 and a male end 62, the hook-shaped end 61 of pull bar 6 is connected with an end 51 of first torsion spring 5, the male end 62 of pull bar 6 cooperates (referring to Fig. 1 with the screwed hole of centre 71 of worm gear 7, Fig. 2 and Fig. 5), worm gear 7 and one has worm screw 9 engagements of extending handle 8, worm gear 7 and worm screw 9 are encapsulated in the surface of mid-game 3 (referring to Fig. 4 by shell 10, Fig. 5), the extension handle 8 of worm screw 9 extends to outside the deep bid group side is convenient to rotary worm 9, can drive worm gear 7 rotations by extending handle 8 rotary worms 9, worm gear 7 cooperates with the external screw thread of drag hook 6 can cause drag hook 6 to move axially, thereby the end that can drive first torsion spring 5 that moves axially of drag hook 6 tightens reduction torsion spring 5 or loosens.When the direction that an end that drives first torsion spring 5 when moving axially of pull bar tightens up to first torsion spring 5 was rotated, the torsion of first torsion spring 5 strengthened; Otherwise when an end of first torsion spring 5 rotated along the direction of loosening in contrast to first torsion spring 5, the torsion of first torsion spring 5 reduced.
Present embodiment is the applicating example of the present invention on a reduction torsion spring on the chair tray, and the present invention also can be applicable to the torsion of other reduction torsion spring on the chair tray and regulates.
Other structure of chair tray with reset torsion spring torque force adjusting mechanism of the present invention is as follows:
As shown in Figure 3 and Figure 4, renovate 2 pivotally connected with deep bid group 1 and be connected renovate 2 and second pivot 11 of deep bid group 1 on be arranged with second torsion spring 12, renovate 2 and be provided with first fixed axis 13 parallel with second pivot 11, deep bid group 1 is provided with second fixed axis 14 parallel with first fixed axis 13, the first movable friction plate group, 15 1 ends are rotatably connected on first fixed axis 13 by circular hole, the other end of the first movable friction plate group 15 is slidingly connected on second fixed axis 14 by a bar-shaped trough, the friction plate of being located at the first static friction sheet group 16 on second fixed axis 14 is alternately distributed between the first movable friction plate group 15, an end of renovating joystick 17 that is positioned at outside the deep bid group 1 is hinged by an end of the first eccentric block (not shown) and second fixed axis 14, the connecting portion of second fixed axis 14 and first eccentric block is provided with first overcoat 18 outward, pull and renovate joystick 17 and can control and drive second fixed axis 14 and move axially, and then control the first static friction sheet group 16 and the first movable friction plate group 15 closely cooperates or matched in clearance.Between the first movable friction plate group and the first static friction sheet, be under the state of matched in clearance, connecting renovating of the chair back is subjected to when using then back by the reset force of the power or second torsion spring, can slide relatively between first moving bar-shaped trough and second fixed axis of wiping on the sheet, connect the chair back of renovating and to carry out stepless reclining adjusting; When the chair back of renovating when connection is adjusted to proper angle, pull and renovate joystick and make between the first movable friction plate group and the first static friction sheet and be in close-fitting state, can not slide relatively between the first movable friction plate group and second fixed axis, this moment, the chair back was promptly locked with respect to the angle between the seat support that connects the deep bid group.
As shown in Figure 3 and Figure 4, deep bid group 1 is provided with the 3rd fixed axis 19, the mid-game group is provided with the 4th fixed axis 20, the second movable friction plate group, 21 1 ends are rotationally connected by circular hole on the 3rd fixed axis 19, the other end of the second movable friction plate group 21 is slidingly connected on the 4th fixed axis 20 by bar-shaped trough, the friction plate that is fixed on the second static friction sheet group 22 on the 4th fixed axis 20 is arranged alternately between the movable friction plate of the second movable friction plate group 21, be sheathed on an end of the stage clip 23 on the 4th fixed axis 20 and an end in contact of the second static friction sheet group 22, the other end of stage clip 23 contacts with second eccentric block 24, second eccentric block, 24 eccentric rotary are connected in second overcoat 25, second overcoat 25 is fixing with mid-game group 3, deep bid joystick 26 1 ends and second eccentric block 24 are fixing, pull deep bid joystick 26 and can make stage clip 23 be in compressive state or free transition, whether move thereby control between the second movable friction plate group 21 and the 4th fixed axis 20.When compression spring when being in compressive state, be in by relative state of locking between the second movable friction plate group and the second static friction sheet, locked by relative between the seat support that connects the deep bid group and the mid-game group of connection air pressure rod, the reclining angle of seat support is locked; And when the compression spring is in free state, the second movable friction plate group can be by its end bar-shaped trough and the 4th fixed axis between relative slip, when the deep bid group is subjected to acting on the reset response power of the active force on the seat support or first torsion spring from the user, can relatively rotate around first pivot between deep bid group and the mid-game group, the reclining angle that promptly connects the seat support of deep bid group is in the state of can stepless reclining regulating.
As shown in Figure 3 and Figure 4, be rotatably connected to original state joystick 27 on the deep bid group 1, the position that original state joystick 27 is positioned at deep bid group 1 is provided with external screw thread 28, slide block 29 with internal thread hole is threaded with original state joystick 27, slide block 29 and original state regulating block 30 cooperate by lozenges, original state regulating block 30 is by an inclined-plane 31 and mid-game set of contact, rotation original state regulating handle 27 can drive slide block and move, slide block 29 can drive original state regulating block 30 with the height of change original state regulating block 30 with the inclined-plane of mid-game set of contact, thereby can regulate the initial reclining angle that connects deep bid group seat support.
As Fig. 1 and shown in Figure 6, mid-game group 3 is provided with air pressure rod joystick 32, the inner oblique pressure head 33 that forms the control air pressure rod down of air pressure rod joystick 32.
Embodiment 2: as Fig. 3, Fig. 4 and shown in Figure 7, chair tray comprises and is used for the deep bid group 1 that is connected with seat support, be used for being connected with the chair back renovate 2 with the mid-game group 3 that is used for being connected with air pressure rod, mid-game group 3 is pivotally connected with deep bid group 1, on first pivot 4 that connects mid-game group 3 and deep bid group 1, be arranged with first torsion spring 5, first torsion spring, the 5 other pull bars 6 that are provided with, pull bar 6 comprises a male end 62, the male end 62 of pull bar 6 cooperates (referring to Fig. 1 with the screwed hole of centre 71 of worm gear 7, Fig. 2 and Fig. 7), one end, 51 welding or one-body molded of the other end 63 of pull bar 6 and reduction torsion spring 5, worm gear 7 and one has worm screw 9 engagements of extending handle 8, worm gear 7 and worm screw 9 are encapsulated in the surface of mid-game 3 (referring to Fig. 4 by shell 10, Fig. 7), the extension handle 8 of worm screw 9 extends to outside the deep bid group side is convenient to rotary worm 9, can drive worm gear 7 rotations by extending handle 8 rotary worms 9, worm gear 7 cooperates with the external screw thread of drag hook 6 can cause drag hook 6 to move axially, thereby the end that can drive first torsion spring 5 that moves axially of drag hook 6 tightens reduction torsion spring 5 or loosens.When the direction that an end that drives first torsion spring 5 when moving axially of pull bar tightens up to first torsion spring 5 was rotated, the torsion of first torsion spring 5 strengthened; Otherwise when an end of first torsion spring 5 rotated along the direction of loosening in contrast to first torsion spring 5, the torsion of first torsion spring 5 reduced.
Claims (9)
1. chair tray reset torsion spring torque force governor motion, comprise the reduction torsion spring that is sheathed on the chair tray pivot, it is characterized in that described reduction torsion spring side is provided with intermeshing worm gear and worm screw, described worm gear center is provided with screwed hole of centre, the screwed hole of centre of worm gear cooperates with the threaded one end of pull bar, the other end of pull bar is connected with described reduction torsion spring one end, described worm screw is formed with the extension handle, can drive the worm gear rotation by extending the handle rotary worm, the threaded engagement of worm gear and pull bar can cause pull bar to move axially, when the direction that an end that drives reduction torsion spring when moving axially of pull bar tightens up to reduction torsion spring was rotated, the torsion of reduction torsion spring strengthened; Otherwise when an end of reduction torsion spring rotated along the direction of loosening in contrast to reduction torsion spring, the torsion of the torsion spring that resets reduced.
2. chair tray reset torsion spring torque force governor motion according to claim 1 is characterized in that this end that described pull bar links to each other with reduction torsion spring is hook formation, and pull bar links to each other with reduction torsion spring one end by hook formation.
3. chair tray reset torsion spring torque force governor motion according to claim 1 and 2 is characterized in that being between the end of described pull bar and reduction torsion spring welding fixed connection structure or integrative-structure.
4. chair tray reset torsion spring torque force governor motion according to claim 1 and 2 is characterized in that described worm and gear is covered with shell outward.
5. chair tray with the described reset torsion spring torque force adjusting mechanism of claim 1, comprise and be used for the deep bid group that is connected with seat support, what be used for being connected with the chair back renovates and the mid-game group that is used for being connected with air pressure rod, described mid-game group and deep bid group are pivotally connected, on first pivot that connects mid-game group and deep bid group, be arranged with first torsion spring, it is characterized in that described reduction torsion spring side is provided with intermeshing worm gear and worm screw, described worm gear center is provided with screwed hole of centre, the screwed hole of centre of worm gear cooperates with the threaded one end of pull bar, the other end of pull bar is connected with described reduction torsion spring one end, described worm screw is formed with the extension handle, the extension handle of described worm screw extends to outside the deep bid group side is convenient to rotary worm, can drive the worm gear rotation by extending the handle rotary worm, the threaded engagement of worm gear and pull bar can cause pull bar to move axially, when the direction that an end that drives reduction torsion spring when moving axially of pull bar tightens up to reduction torsion spring was rotated, the torsion of reduction torsion spring strengthened; Otherwise when an end of reduction torsion spring rotated along the direction of loosening in contrast to reduction torsion spring, the torsion of the torsion spring that resets reduced.
6. chair tray according to claim 5, it is characterized in that describedly renovating pivotally connected and being arranged with second torsion spring being connected on second pivot of renovating with the deep bid group with the deep bid group, described renovating is provided with first fixed axis parallel with second pivot, described deep bid group is provided with second fixed axis parallel with first fixed axis, the first movable friction plate group, one end is rotatably connected on first fixed axis by circular hole, the other end of the described first movable friction plate group is slidingly connected on second fixed axis by a bar-shaped trough, the friction plate of being located at the first static friction sheet group on second fixed axis is alternately distributed between the first movable friction plate group, it is hinged by an end of first eccentric block and second fixed axis to be positioned at the outer end of renovating joystick of deep bid group, the connecting portion of second fixed axis and first eccentric block is provided with first overcoat outward, pull and renovate joystick and can control and drive second fixed axis and move axially, and then control the first static friction sheet group and the first movable friction plate group closely cooperates or matched in clearance.
7. according to claim 5 or 6 described chair trays, it is characterized in that described deep bid group is provided with the 3rd fixed axis, described mid-game group is provided with the 4th fixed axis, the second movable friction plate group, one end is rotationally connected by circular hole on the 3rd fixed axis, the other end of the described second movable friction plate group is slidingly connected on the 4th fixed axis by bar-shaped trough, the friction plate that is fixed on the second static friction sheet group on the 4th fixed axis is arranged alternately between the movable friction plate of the second movable friction plate group, be sheathed on an end of the stage clip on the 4th fixed axis and an end in contact of the second static friction sheet group, the other end of described stage clip contacts with second eccentric block, the second eccentric block eccentric rotary is connected in second overcoat, second overcoat and mid-game group are fixed, deep bid joystick one end and second eccentric block are fixed, pull the deep bid joystick and can make stage clip be in compressive state or free transition, whether move thereby control between the second movable friction plate group and the 4th fixed axis.
8. according to claim 5 or 6 described chair trays, it is characterized in that being rotatably connected to the original state joystick on the described deep bid group, the position that the original state joystick is positioned at the deep bid group is provided with external screw thread, slide block with internal thread hole is threaded with the original state joystick, described slide block cooperates by lozenges with the original state regulating block, described original state regulating block is by an inclined-plane and mid-game set of contact, rotation original state regulating handle can drive slide block and move, and slide block can drive the height of original state regulating block with the inclined-plane of change original state regulating block and mid-game set of contact.
9. according to claim 5 or 6 described chair trays, it is characterized in that described mid-game group is provided with the air pressure rod joystick, the inner oblique pressure head that forms the control air pressure rod down of described air pressure rod joystick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910095496A CN101779870A (en) | 2009-01-19 | 2009-01-19 | Chair tray reset torsion spring torque force adjusting mechanism and chair tray thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910095496A CN101779870A (en) | 2009-01-19 | 2009-01-19 | Chair tray reset torsion spring torque force adjusting mechanism and chair tray thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101779870A true CN101779870A (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910095496A Pending CN101779870A (en) | 2009-01-19 | 2009-01-19 | Chair tray reset torsion spring torque force adjusting mechanism and chair tray thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049640A (en) * | 2017-02-15 | 2017-08-18 | 浙江安吉铭成椅业有限公司 | A kind of wheel seat base of convenient regulation angle |
| CN113181024A (en) * | 2021-04-28 | 2021-07-30 | 绍兴上虞大康体育健身设施制造有限公司 | Waist and back massage instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036554A (en) * | 2005-03-17 | 2007-09-19 | 思特威尔有限公司 | Chair control device |
| CN200983987Y (en) * | 2006-09-15 | 2007-12-05 | 祝卫国 | Chair salver |
| CN201341637Y (en) * | 2009-01-12 | 2009-11-11 | 陈千奎 | Chair tray |
| CN201379294Y (en) * | 2009-01-12 | 2010-01-13 | 陈千奎 | Torque force regulating mechanism of chair carrier restoring torsion spring |
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2009
- 2009-01-19 CN CN200910095496A patent/CN101779870A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036554A (en) * | 2005-03-17 | 2007-09-19 | 思特威尔有限公司 | Chair control device |
| CN200983987Y (en) * | 2006-09-15 | 2007-12-05 | 祝卫国 | Chair salver |
| CN201341637Y (en) * | 2009-01-12 | 2009-11-11 | 陈千奎 | Chair tray |
| CN201379294Y (en) * | 2009-01-12 | 2010-01-13 | 陈千奎 | Torque force regulating mechanism of chair carrier restoring torsion spring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049640A (en) * | 2017-02-15 | 2017-08-18 | 浙江安吉铭成椅业有限公司 | A kind of wheel seat base of convenient regulation angle |
| CN113181024A (en) * | 2021-04-28 | 2021-07-30 | 绍兴上虞大康体育健身设施制造有限公司 | Waist and back massage instrument |
| CN113181024B (en) * | 2021-04-28 | 2022-11-25 | 绍兴上虞大康体育健身设施制造有限公司 | Waist and back massage instrument |
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Application publication date: 20100721 |