CN103040258B - A kind of device for regulating chair angle and seat - Google Patents
A kind of device for regulating chair angle and seat Download PDFInfo
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- CN103040258B CN103040258B CN201210546085.4A CN201210546085A CN103040258B CN 103040258 B CN103040258 B CN 103040258B CN 201210546085 A CN201210546085 A CN 201210546085A CN 103040258 B CN103040258 B CN 103040258B
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- slide block
- voussoir
- chute
- gap
- angle
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Abstract
The invention discloses a kind of device for regulating chair angle, comprise slide block, coulisse and unblock cam, described slide block is located in the chute of described coulisse, is provided with by the elimination clearance mechanism of described unblock cam production in the gap of described slide block and its chute.This adjusting device effectively can eliminate the horizontal fit clearance of slide block and chute, and eliminates the noise produced by gap, improves seat stability and comfortableness, is applicable to seat that is only single or two device for regulating chair angle installation requirements.The invention also discloses the seat being provided with described device for regulating chair angle.
Description
Technical field
The present invention relates to the angle regulator of seat adjustment technical field, particularly seat.The invention still further relates to the seat being provided with described adjusting device.
Background technology
In prior art, device for regulating chair angle is mainly divided into two kinds: a kind of is the handle type adjusting device of ratchet and pawl arrangement principle, and another kind is the gear type adjusting device of Planetary Gear Transmission principle.
For the regulator for chair back angle of click principle, motion fit clearance must be provided with between slide block (or ratchet) and chute, the smooth and easy slip of guarantee slide block, for angular adjusting device for automobile seat backrest, the existence in gap can cause shaking volume before and after backrest to increase, and can produce the change of obvious angle, seat comfort reduces, even can produce noise in vehicle travel process, cause the experience sense of client or end user poor.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of click regulator for chair back angle in prior art.
As shown in the figure, Authorization Notice No. is that the utility model patent description of CN 201026016Y discloses a kind of device for regulating chair angle, in unblock and locking process, its slide block 1 ＇ must translation in the chute of coulisse 2 ＇, to realize engaging and disengagement of slide block tooth and hook tooth, reach the object of angular adjustment, slide block 1 ＇ and chute all arrange certain gap in a lateral direction.When device for regulating chair angle locking, this gap still exists, and will be exaggerated when this gap is reacted to backrest top, can produce obvious angle change or noise, fit clearance is larger, the backrest of generation rock or noise larger.
For controlling the fit clearance of slide block and chute, current major control method improves the part accuracy of manufacture, and to reduce fit clearance, thus reduction backrest rocks, and does like this and will inevitably increase manufacturing cost, and can not eliminate gap completely.In addition, the core component of such angle regulator adopts welding manner to connect with between gusset piece usually, solder joint generally designs at the chute back side, after assemble welding, due to the impact of welding deformation, cause skid to have some setbacks, or slide block to be waited indefinitely phenomenon by chute folder, finally causes adjusting device slip teeth, unlock resistance large, cannot to unlock and cannot the serious consequence of the afunction such as locking.
Please refer to Fig. 2, Fig. 2 is the structural representation of another kind of click regulator for chair back angle in prior art.
As shown in the figure, publication number is that the application for a patent for invention Publication Specification of CN 1989022A discloses a kind of automobile seat accessories, slide block is divided into the mechanism of at least two sections by it along at least one cut-off rule, under the prerequisite not increasing the part accuracy of manufacture, the gap of device for regulating chair angle can be reduced.
The operation principle of this mechanism is: locking cam is under the effect of additional driving torque, promote segmentation two slide block 19 ＇, slide block 20 ＇ from locking face 23 ＇, slide block 19 ＇, slide block 20 ＇ are radially moved, until ratchet 21 ＇ of slide block 19 ＇ engages completely with ratchet ratchet simultaneously.Now, locking cam is rotated further, and due to the existence in slide block 19 ＇ and chute horizontal direction gap, slide block 20 ＇ still can continue to move along divisional plane 18 ＇, utilizes relative motion less in a lateral direction, reduces or eliminates the gap between slide block and chute completely
There is following problem in said mechanism:
One, reduce the rotational angle that gap depends on locking cam, therefore the position of the locking cam locking of the device for regulating chair angle of different fit clearance is different, the unblock angle of device for regulating chair angle is just different, angular deviation is excessive, by the seat causing device for regulating chair angle to be only applicable to single installation requirement.
Its two, be reduce angular deviation, require to increase to the size accuracy of manufacture in slide block and trough width direction, can manufacturing cost be increased equally.
Its three, the engagement of ratchet is uncertain with the sequencing eliminating gap, if just completely eliminate lateral clearance before ratchet engagement, by cause cannot the serious consequence of locking.
Summary of the invention
The first object of the present invention is to provide a kind of device for regulating chair angle.This adjusting device effectively can eliminate the horizontal fit clearance of slide block and chute, and eliminates the noise produced by gap, improves seat stability and comfortableness, is applicable to seat that is only single or two device for regulating chair angle installation requirements.
The second object of the present invention is to provide a kind of seat being provided with described device for regulating chair angle.
For realizing above-mentioned first object, the invention provides a kind of device for regulating chair angle, comprise slide block, coulisse and unblock cam, described slide block is located in the chute of described coulisse, is provided with by the elimination clearance mechanism of described unblock cam production in the gap of described slide block and its chute.
Preferably, described elimination clearance mechanism comprises voussoir and flexible member;
Described voussoir is arranged in the wedge gap of slide block and its chute, and is provided with boss;
One end of described flexible member is installed on described coulisse or slide block, and the other end is installed on described voussoir, and its elastic force makes described voussoir have the trend of radially moving;
Described unblock cam is provided with curved surface, and by described curved surface and boss coordinate and the effect of flexible member controls described voussoir and moves in wedge gap.
Preferably, in releasing process, described curved surface drives described voussoir prior to described slide block movement by boss, makes described voussoir and slide block and chute produce gap in the horizontal;
In locking process, described voussoir continues motion under the effect of flexible member after described slide block stop motion, eliminates described voussoir and slide block and chute gap in the horizontal.
Preferably, described curved surface is positioned at the outer rim place of described unblock cam cut-out circular arc, and its height reduces for benchmark first raises gradually more gradually with described outer rim, and the gradient of meeting to described boss is greater than the gradient of described boss dorsad.
Preferably, comprise locking cam further, the inner edge of each described slide block is provided with the first protruding locking face and the second locking face, and described locking cam is provided with the first corresponding working face and the second working face.
Preferably, comprise slide block described in two and two or more, in the gap of slide block described at least one and its chute, be provided with described elimination clearance mechanism.
Preferably, one end of described flexible member embeds in the tangential opening on described chute wall, and the other end embeds in groove relative with described opening on described slide block.
Preferably, the angle angle of two sides that described voussoir matches with slide block and coulisse is less than 15.
For realizing above-mentioned second object, the invention provides a kind of seat, comprise seat support and the chair back, the junction of described seat support and the chair back is provided with angle regulator, it is characterized in that, described angle regulator is the device for regulating chair angle described in above-mentioned any one.
Preferably, automotive seat is specially.
The present invention is directed between the slide block of device for regulating chair angle and chute and be reserved with gap, after locking process completes, the existence in this gap is to stability and the harmful problem of comfortableness, arrange by the elimination clearance mechanism unlocking cam production in the gap of slide block and its chute, after device for regulating chair angle locking, by elimination clearance mechanism, the horizontal fit clearance of slide block and chute is eliminated, thus improve seat stability and comfortableness, and eliminate the noise produced by gap.
In a kind of preferred version, described elimination clearance mechanism comprises voussoir and flexible member, described unblock cam is provided with curved surface, when unlocking, described voussoir is driven outwards to move by described curved surface with coordinating of boss, make between slide block and chute, to produce horizontal fit clearance, be beneficial to being free to slide of slide block, after device for regulating chair angle locking, voussoir is driven by the distortion of described flexible member, eliminate the horizontal fit clearance between slide block and chute, the gap, front and back of effective reduction backrest, and the unblock angle of device for regulating chair angle is not affected, be applicable to seat that is only single or two device for regulating chair angle installation requirements.
In further preferred scheme, described unblock cam coordinating and the effect of flexible member by curved surface and boss, in unblock, opportunity that voussoir moves in wedge gap and position is controlled in locking process, utilize and unlock, the time difference of each execution unit motion in locking process, realize unlocking, the sequencing of gap action is eliminated in locking process, namely in releasing process, voussoir first moves to the direction producing gap, start to move to unlocking direction with rear slider, in locking process, slide block first engages completely with ratchet, start to the motion of elimination gap direction with back wedge, until gap is eliminated completely, thus guarantee to unlock, locking can carry out smoothly.
Seat provided by the invention is provided with described device for regulating chair angle, and because described device for regulating chair angle has above-mentioned technique effect, the seat being provided with this device for regulating chair angle also should possess corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of click regulator for chair back angle in prior art;
Fig. 2 is the structural representation of another kind of click regulator for chair back angle in prior art;
Fig. 3 is the structural representation of a kind of detailed description of the invention of device for regulating chair angle provided by the present invention;
Fig. 4 hides for device for regulating chair angle shown in Fig. 3 and unlocks the structural representation after cam;
Fig. 5 sets up the structural representation of locking cam further for device for regulating chair angle shown in Fig. 3.
In Fig. 1, Fig. 2:
Slide block 1 ＇ coulisse 2 ＇ divisional plane 18 ＇ slide block 19 ＇ slide block 20 ＇ ratchet 21 ＇ is from locking face 23 ＇
In Fig. 3 to Fig. 5:
1. coulisse 2. ratchet 2-1. ratchet ratchet 3. slide block 3-1. boss 3-2. slide block ratchet 4. wedge 4-1. boss 5. unlocks cam 5-1. curved surface 5-2. cam path 5-3. cam path 6. voussoir 6-1. first side 6-2. second side 6-3. boss 7. flexible member 8. hollow shaft 9. mating surface 10. back-moving spring 11. locking cam 11-1. first working face 11-2. second working face
Detailed description of the invention
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 3, Fig. 4, Fig. 3 is the structural representation of a kind of detailed description of the invention of device for regulating chair angle provided by the present invention; Fig. 4 hides for device for regulating chair angle shown in Fig. 3 and unlocks the structural representation after cam.
As shown in the figure, in a kind of detailed description of the invention, device for regulating chair angle provided by the invention is ratchet wheel pawl type structure, primarily of coulisse 1, ratchet 2, slide block 3, wedge 4, unlock the parts compositions such as cam 5, coulisse 1 is substantially in disc, and ratchet 2 is sleeved in the inner ring of coulisse 1, the quantity of slide block 3 is two, upper and lowerly be symmetrically arranged in the vertical chute of coulisse 1, the quantity of wedge 4 is also two, is left and rightly symmetrically arranged in the horizontal concrete chute of coulisse 1.
Gap is reserved with between slide block 3 and chute, after locking process completes, the existence in this gap is harmful to stability and comfortableness, for addressing this problem, the gap of slide block 3 with chute is strengthened by the present invention further, and the elimination clearance mechanism controlled by unblock cam 5 is set wherein, to reach the object eliminating gap.
The critical piece eliminating clearance mechanism is voussoir 6 and flexible member 7, voussoir 6 is arranged in the gap of slide block 3 and its chute, this gap is wedge shape, be made up of the straight flange of slide block 3 and the hypotenuse of chute, voussoir 6 can slide between slide block 3 and chute, there is the angle of certain angle in the first side 6-1 that voussoir 6 matches with slide block 3 and chute and the second side 6-2, angle is inside and angle is less than 15 °, and voussoir 6 is provided with boss 6-3.
Flexible member 7(such as shell fragment) one end embed in the tangential opening on chute wall, the other end embeds in groove relative with opening on slide block 3, and voussoir 6, under the effect of flexible member 7, radially can move in gap.
Unlock cam 5 and be provided with curved surface 5-1, curved surface 5-1 is positioned at the outer rim place unlocking cam 5 cut-out circular arc, its height is that first the rising gradually of benchmark is reduced gradually again with outer rim, and the gradient of meeting to boss 6-3 is greater than the gradient of boss dorsad, in lock position, first paragraph curved surface is generally perpendicular to the center of circle of boss 6-3 and the line in the mechanism center of circle, and keep a determining deviation with boss 6-3, at unlocked position, second segment curved surface is generally perpendicular to the center of circle of boss 6-3 and the line in the mechanism center of circle, now boss 6-3 outwards moves under the support of second segment curved surface, namely the vertical range in second segment curved surface and the mechanism center of circle is greater than the vertical range in first paragraph curved surface and the mechanism center of circle, and connected by inclined-plane rounding off between the two, the whole curved surface of final formation, curved surface 5-1 is in unblock, the position controlling voussoir is participated in locking process, to realize unlocking, the sequencing of gap action is eliminated in locking process.
The sequencing of above-mentioned slide block and wedge block movement refers to: in releasing process, curved surface 5-1 drives voussoir 6 outwards to move before slide block 3 inwardly motion by boss 6-3, make voussoir 6 produce gap in the horizontal with slide block 3 and chute, start to move to unlocking direction with rear slider 3; In locking process, voussoir 6 is under the effect of flexible member 7 after slide block 3 first engage completely with ratchet 2 and stops outside moving, and voussoir 6 continues inside motion, until voussoir 6 and slide block 3 and chute gap are in the horizontal eliminated completely.
Its releasing process is as follows:
When external torque is delivered on unblock cam 5 by hollow shaft 8; the cam path 5-2 unlocked on cam 5 drives the boss 4-1 of two wedges 4 outwards to move; the boss 6-3 that the curved surface 5-1 unlocked in cam 5 outer rim promotes voussoir 6 outwards moves; voussoir 6 produces gap in a lateral direction with slide block 3 and chute, guarantees that slide block 3 can slide in chute.Boss 3-1 on two cam path 5-3 band movable sliders 3 subsequently on unblock cam 5 is to center translation, until slide block ratchet 3-2 and ratchet ratchet 2-1 throws off completely, now, ratchet 2 freely can rotate relative to the mating surface 9 of coulisse 1 around both, thus realizes the adjustment of backrest angle.
Its locking process is as follows:
When backrest angle is adjusted to suitable position, remove external torque (release handle), under the driving of back-moving spring 10, the cam path 5-2 unlocking cam 5 drives wedge 4 to center translation, voussoir 3, under the effect of flexible member 4, inwardly moves along the curved surface unlocked on cam 5, the contacting from locking face from locking face and slide block 3 of wedge 4, and promote the chute outside translation of slide block 3 along coulisse, until slide block ratchet 3-2 engages completely with ratchet ratchet 2-1.Now voussoir 3 is under the effect of flexible member 4, continue inwardly motion until by voussoir 6 and between slide block 3 and chute gap in a lateral direction eliminate completely, slide block 3, voussoir 6 and chute are combined together closely, reach the object eliminating device for regulating chair angle axial clearance.
Please refer to Fig. 5, Fig. 5 sets up the structural representation of locking cam further for device for regulating chair angle shown in Fig. 3.
During for guaranteeing that voussoir eliminates gap, slide block ratchet 3-2 can engage completely with ratchet ratchet 2-1, can increase locking cam on the basis of above-described embodiment, to improve the engagement force of slide block.
As shown in the figure, locking cam 11 is increased in mechanism center, first working face 11-1 of locking cam 11 and the second working face 11-2 coordinates with the first locking face that slide block 3 inner edge increases and the second locking face, effectively can increase the component that slide block 3 outwards moves, reduce the impact of the frictional force produced because the voussoir 6 that flexible member 7 drives moves, more effective guarantee slide block ratchet 3-2 fully engages with ratchet ratchet 2-1's, better eliminates the axial clearance of device for regulating chair angle.
In the above-described embodiments, simply show the design of two slide blocks and two wedges, obviously this kind of form is not limited to, can also be three slide blocks, three wedges, or more slide block, wedge, elimination clearance mechanism can be all set each slide block, also only elimination clearance mechanism can be set a slide block, or elimination clearance mechanism is set in the mode at interval, all can realizes the object of the invention.
Certainly, above-mentioned device for regulating chair angle is only a kind of preferred version, is specifically not limited thereto, and can make pointed adjustment according to actual needs on this basis, thus obtain different embodiments.Such as: toward the outer side, the direction of motion that voussoir produced and eliminated gap is in contrast with the previous embodiment, or becomes to be similar to the form of cam path by curved design, or voussoir is designed to other shapes etc. for the angle of wedge of the wedge gap between slide block and chute.Because mode in the cards is more, just illustrate no longer one by one here.
Except above-mentioned device for regulating chair angle, the present invention also provides a kind of seat, be specially automotive seat, comprise seat support and the chair back, the junction of described seat support and the chair back is provided with angle regulator, described angle regulator is device for regulating chair angle mentioned above, and all the other structures please refer to prior art, repeat no more herein.
Above device for regulating chair angle provided by the present invention and seat are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. a device for regulating chair angle, comprises slide block, coulisse and unblock cam, and described slide block is located in the chute of described coulisse, is provided with by the elimination clearance mechanism of described unblock cam production in the gap of described slide block and its chute;
It is characterized in that, described elimination clearance mechanism comprises voussoir and flexible member;
Described voussoir is arranged in the wedge gap of slide block and its chute, and is provided with boss;
One end of described flexible member is installed on described coulisse or slide block, and the other end is installed on described voussoir, and its elastic force makes described voussoir have the trend of radially moving;
Described unblock cam is provided with curved surface, and by described curved surface and boss coordinate and the effect of flexible member controls described voussoir and moves in wedge gap.
2. device for regulating chair angle according to claim 1, is characterized in that,
In releasing process, described curved surface drives described voussoir prior to described slide block movement by boss, makes described voussoir and slide block and chute produce gap in the horizontal;
In locking process, described voussoir continues motion under the effect of flexible member after described slide block stop motion, eliminates described voussoir and slide block and chute gap in the horizontal.
3. device for regulating chair angle according to claim 2, it is characterized in that, described curved surface is positioned at the outer rim place of described unblock cam cut-out circular arc, its height reduces for benchmark first raises gradually more gradually with described outer rim, and the gradient of meeting to described boss is greater than the gradient of described boss dorsad.
4. device for regulating chair angle according to claim 3, it is characterized in that, comprise locking cam further, the inner edge of each described slide block is provided with the first protruding locking face and the second locking face, and described locking cam is provided with the first corresponding working face and the second working face.
5. the device for regulating chair angle according to any one of Claims 1-4, is characterized in that, comprises slide block described in two and two or more, is provided with described elimination clearance mechanism in the gap of slide block described at least one and its chute.
6. the device for regulating chair angle according to any one of Claims 1-4, is characterized in that, one end of described flexible member embeds in the tangential opening on described chute wall, and the other end embeds in groove relative with described opening on described slide block.
7. the device for regulating chair angle according to any one of Claims 1-4, is characterized in that, the angle angle of two sides that described voussoir matches with slide block and coulisse is less than 15 °.
8. a seat, comprises seat support and the chair back, and the junction of described seat support and the chair back is provided with angle regulator, it is characterized in that, described angle regulator is the device for regulating chair angle described in any one of the claims 1 to 7.
9. seat according to claim 8, is characterized in that, is specially automotive seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546085.4A CN103040258B (en) | 2012-12-14 | 2012-12-14 | A kind of device for regulating chair angle and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546085.4A CN103040258B (en) | 2012-12-14 | 2012-12-14 | A kind of device for regulating chair angle and seat |
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| Publication Number | Publication Date |
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| CN103040258A CN103040258A (en) | 2013-04-17 |
| CN103040258B true CN103040258B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210546085.4A Active CN103040258B (en) | 2012-12-14 | 2012-12-14 | A kind of device for regulating chair angle and seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515521A (en) * | 2016-12-06 | 2017-03-22 | 浙江天成自控股份有限公司 | Seat angle regulator with auxiliary locking structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361499B (en) * | 2015-12-02 | 2018-05-04 | 湖北中航精机科技有限公司 | A kind of seat and its device for regulating chair angle |
| CN107415784B (en) * | 2017-05-11 | 2023-11-07 | 汕头市瑞祥模具有限公司 | Automobile armrest position rotation adjusting device |
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| EP1172250A2 (en) * | 2000-06-29 | 2002-01-16 | Fujikiko Kabushiki Kaisha | Seat reclining device |
| FR2892356A1 (en) * | 2005-10-24 | 2007-04-27 | Faurecia Sieges Automobile | Articulation mechanism for seat of vehicle, has ring with circular inner surface, rigid flange with central part and retention unit, where flange and ring are maintained together by gussets fixed on element chosen among flange and ring |
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| CN203041376U (en) * | 2012-12-14 | 2013-07-10 | 湖北中航精机科技有限公司 | Seat angle adjusting device and seat |
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| JP4305571B2 (en) * | 2006-02-16 | 2009-07-29 | 株式会社今仙電機製作所 | Reclining device |
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|---|---|---|---|---|
| EP1172250A2 (en) * | 2000-06-29 | 2002-01-16 | Fujikiko Kabushiki Kaisha | Seat reclining device |
| FR2892356A1 (en) * | 2005-10-24 | 2007-04-27 | Faurecia Sieges Automobile | Articulation mechanism for seat of vehicle, has ring with circular inner surface, rigid flange with central part and retention unit, where flange and ring are maintained together by gussets fixed on element chosen among flange and ring |
| CN101243923A (en) * | 2007-02-16 | 2008-08-20 | 湖北中航精机科技股份有限公司 | Device for regulating chair angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515521A (en) * | 2016-12-06 | 2017-03-22 | 浙江天成自控股份有限公司 | Seat angle regulator with auxiliary locking structure |
| CN106515521B (en) * | 2016-12-06 | 2019-06-28 | 浙江天成自控股份有限公司 | Seat angle adjustor with auxiliary locking mechanism |
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| CN103040258A (en) | 2013-04-17 |
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