CN103129421A - Seat angle adjustor and seat comprising the same - Google Patents
Seat angle adjustor and seat comprising the same Download PDFInfo
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- CN103129421A CN103129421A CN2011103789542A CN201110378954A CN103129421A CN 103129421 A CN103129421 A CN 103129421A CN 2011103789542 A CN2011103789542 A CN 2011103789542A CN 201110378954 A CN201110378954 A CN 201110378954A CN 103129421 A CN103129421 A CN 103129421A
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- fixed parts
- seat
- angle adjustor
- seat angle
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
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Abstract
The invention discloses a seat angle adjustor. The seat angle adjustor comprises a moving part and a fixed part, wherein the moving part and the fixed part are arranged inside a protection sleeve, the moving part is provided with an inner gear ring used for being fixedly connected with the seat back, and the fixed part is provided with an outer gear ring used for being connected with a seat. In addition, a position of the protection sleeve, on the moving part side, is provided with a first limiting part which is stretched towards the inner diameter direction, and the inner edge of the first limiting part is placed on the inner side of the outer edge of the moving part. A position of the protection sleeve, on the fixed part side, is provided with a second limiting part which is stretched towards the inner diameter direction, the inner edge of the second limiting part is located on the inner side of the outer edge of the fixed part, the second limiting part of the protection sleeve is provided with an indent notch, and the fixed part on the indent notch is provided with a connection part which is axially stretched out of the indent notch of the second limiting part to be used for being connected with the seat. On the basis of the same bearing performance, manufacturing cost of the seat angle adjustor can be effectively reduced. And on the basis, the invention further provides the seat comprises the seat angle adjustor.
Description
Technical field
The present invention relates to the adjustable seat of a kind of angle of back-rest, the seat that is specifically related to a kind of seat angle adjustor and has this recliner.
Background technology
Existing seat angle adjustor roughly can be divided into two large classes: a class is to adopt the leaf spring type regulating mechanism of ratchet and pawl arrangement principle; Another kind of is the gear type regulating mechanism that adopts the Planetary Gear Transmission principle.Wherein, can realize the step-less adjustment of Chair back angle due to the gear type regulating mechanism, the operability of regulating mechanism is better, therefore field of application is wider.
At present, the connecting structure of seat gear type recliner mainly contains two kinds: a kind of is Open architecture, open refer to the movable part of captiveing joint with the chair back and with fixed parts that seat support is captiveed joint between be in naked state, under the use state, foreign matter can enter the sensitive structure district of fixed parts and movable part, as the tooth mesh regional; Another kind is enclosed construction, closedly refer to that the movable part that will captive joint with the chair back by the sheath class formation is fitted together with the fixed parts cover of captiveing joint with seat support, to both be enclosed in one independently in the space, affect the normal problem of using of seat angle adjustor thereby effectively evaded foreign matter.
Specifically see also Fig. 1 and Fig. 2, the external structure of the existing closed seat angle adjustor of a kind of typical case shown in figure; Wherein, Fig. 1 and Fig. 2 show this seat angle adjustor external structure from two angles respectively.
As shown in the figure, the movable part 10 that this seat angle adjustor will be captiveed joint with the chair back by sheath 50 is bundled together with the fixed parts 20 of captiveing joint with seat support, simultaneously, be provided with boss 30 on fixed parts 20, boss 30 is assemblied in the mounting hole 40 of seat support coupling component; Then use CO
2Gas shielded welding, both weld together.During the actual product design, in the situation that the regulating mechanism requirement of strength is very high, need to increase the size of boss 30 to satisfy the carrying needs; Therefore fixed parts 20 and whole radial structure size are also with corresponding increase, this just causes the oad of whole regulating mechanism to increase, and obviously, makes the scope of its application be subject to certain limitation on the one hand, also corresponding raising of its manufacturing cost in addition.
In addition, adopt CO between the boss 30 on fixed parts 20 and movable part 10 in this scheme
2The bind mode of gas shielded welding; when the position of weld on fixed parts 20 and end instr (for example: tooth) during close together; welding process will cause end instr or the distortion of other structure generations on fixed parts 20, thereby causes the transmission performance of regulating mechanism to descend.
In view of this, demand developing a kind of closed draw bail of seat angle adjustor urgently, can effectively control the recliner volume on the basis of same bearer ability, thereby reduce its manufacturing cost, improve the comformability of this seat angle adjustor.
Summary of the invention
For defects, the technical matters that the present invention solves is, a kind of seat angle adjustor is provided, optimal design by closed draw bail, can make this recliner effectively reduce volume on the basis that possesses the same bearer ability, thereby can effectively reduce its manufacturing cost, improve the comformability of this seat angle adjustor.
Seat angle adjustor provided by the invention comprises the movable part and the fixed parts that are built in sheath, and wherein, described movable part has internally toothed annulus and is used for captiveing joint with the chair back, and described fixed parts has external toothing and is used for captiveing joint with seat support; And the described sheath of movable part side has inwardly radially-protruding the first limiting section, and the inner edge of described the first limiting section is positioned at the inboard of the outer rim of described movable part; The described sheath of fixed parts side has inwardly radially-protruding the second limiting section, and the inner edge of described the second limiting section is positioned at the inboard of the outer rim of described fixed parts; The second limiting section of described sheath has interior concane gap, is provided with link on the described fixed parts of described indent indentation, there, and described link axially stretches out from the interior concane gap of described the second limiting section, is connected with seat support being used for.
Preferably, described link and the corresponding setting of described interior concane gap, both all arrange two at least, and along circumferential uniform setting.
Preferably, in the axis projection face, the outer radial periphery edge of described link and described fixed parts overlaps.
Preferably, the geomery at the radially internal and external circumferential edge of described link is identical, and both sides of the edge be arranged in parallel.
Preferably, the inside of described sheath has step surface, and the medial surface of described fixed parts and this step surface offset; And along fixed parts axially, the bottom surface of described interior concane gap is positioned at the middle part of described fixed parts outer surface
Preferably, described link adopts plate stamping to make.
Preferably, has the gap between the sidewall of the both sides end face of described link and described interior concane gap.
Preferably, adopt laser welding between described link and fixed parts, and from radially outer edge place's welding.
Preferably, in the axis projection face, the radially internal and external circumferential edge of described link and the equal arc transition in junction between the end face of both sides.
Seat provided by the invention, comprise hinged seat support and the chair back and be placed in seat support and the chair back between seat angle adjustor, described seat angle adjustor adopts foregoing recliner.
After seat angle adjustor provided by the invention and seat assembling, its movable part is captiveed joint with the chair back, and fixed parts is captiveed joint with seat support, particularly, and by link and seat support attaching parts plug-in mounting realization circumferential the fixing between the two that arranges on fixed parts.Sheath second limiting section of the fixed parts side of seat angle adjustor of the present invention has interior concane gap, link is arranged on the described fixed parts of indent indentation, there, and this link axially stretches out from the interior concane gap of the second limiting section, realize with seat support between reliable the connection.Compared with prior art, at first, shape technique than this connection structure and fixed parts one, the link that the present invention is used for coordinating with the seat support connector is set to the independent member of independence and fixed parts, can effectively reduce manufacture difficulty, and then reduce its processing and manufacturing cost; Simultaneously, based on identical recliner body and different seat support connected piece structures, can satisfy different apolegamy requirements by the axial dimension of adjusting link, have comformability preferably; Secondly, be provided with interior concane gap on sheath the second limiting section, and link is arranged on the fixed parts of this indent indentation, there, thereby can effectively utilize the radial outer periphery space of fixed parts, so arrange, on the basis of same radial size, can increase to greatest extent the sectional dimension of link to obtain better load-carrying capacity; By its volume of effective control, can further reduce its manufacturing cost, and greatly improve the comformability of this seat angle adjustor.
In preferred version of the present invention, the outer radial periphery edge of described link and fixed parts overlaps in the axis projection face, to utilize to greatest extent the radial outer periphery space of fixed parts, provides reliable guarantee for further controlling its oad.
In this bright another preferred version, the geomery at the radially internal and external circumferential edge of link is identical, and both sides of the edge be arranged in parallel, and specifically adopt plate stamping to make; So arrange, can take full advantage of base material and realize scrape free blanking, further reduce manufacturing cost.
In another preferred version of the present invention, adopt laser welding between link and fixed parts, and from radially outer edge place's welding.The characteristics that one side is fast based on Laser Welding Speed, distortion is little can effectively reduce the impact of welding deformation, so that regulating mechanism has transmission performance preferably.In addition, in welding process from radially outer edge place's welding, that is to say, position of weld between link and fixed parts is positioned at the outer surface of fixed parts, obviously, distant between the sensitive structure on welding region and fixed parts (external tooth), welding effectively reduces the impact of sensitive structure, therefore can further reduce the volume of fixed parts, and then reduce the volume of whole recliner.
Seat angle adjustor provided by the invention is fit to batch manufacturing, has an anufacturability good, the characteristics that manufacturing cost is lower.Be applicable to the various seats that need the adjusting back angle, be specially adapted to automotive seat.
Description of drawings
Fig. 1 and Fig. 2 show from two different visual angles the external structure that publication number is the disclosed seat angle adjustor of CN201468560U patent document respectively;
Fig. 3 is the assembling exploded view of seat angle adjustor described in the specific embodiment;
Fig. 4 is the structure diagram of the middle gear of seat angle adjustor described in specific embodiment transmission device;
Fig. 5 is the front view of seat angle adjustor described in the specific embodiment;
Fig. 6 is the A-A section-drawing of Fig. 5;
Fig. 7 is the B-B section-drawing of Fig. 5;
The outside drawing of the described seat of Fig. 8 specific embodiment.
In figure:
Sheath 1, the first limiting section 11, the second limiting section 12, interior concane gap 13, inwall 14, step surface 15, bottom surface 16, movable part 2, internally toothed annulus 21, fixed parts 3, satellite gear 31, outer surface 32, lateral surface 33, medial surface 34, link 4, outside cambered surface 41, inboard cambered surface 42, end face 43, drive element 5, seat angle adjustor 100.
The specific embodiment
Core of the present invention is to be optimized design for the closed connecting structure of seat angle adjustor, be the weld between link and recliner fixed parts and carried out improving design with the seat connection mode, thereby make this seat angle adjustor effectively reduce volume on the basis that possesses the same bearer ability, reduce its manufacturing cost, and then improve the comformability of this seat angle adjustor.Illustrate present embodiment below in conjunction with Figure of description.
The nouns of locality such as described inboard, the outside herein are take the axial line of seat angle adjustor as the benchmark definition, that is to say; be inboard near this axial line side; be the outside away from this axial line side, should be appreciated that the use of the aforementioned noun of locality should not limited to the claimed scope of present patent application.
See also Fig. 3, this figure is the assembling exploded view of the described seat angle adjustor of present embodiment.This seat angle adjustor same as the prior art comprises gear drive, gap elimination parts and three main function components of drive element.
Gear drive adopts engagement planetary transmission in the few teeth difference single gear, specifically transmission principle structure diagram shown in Figure 4 in the lump please.Wherein, the internally toothed annulus 21 of movable part 2 is meshed with the satellite gear 31 of fixed parts 3, and fixed parts 3 and movable part 2 all are placed in sheath 1, jacket inner wall 14 and the fixed parts 2 little free-running fits of outer surface 32.When operating torsional interaction in drive element 5, drive internally toothed annulus 21 by satellite gear and rotate, thereby make fixed parts 3 rotate with respect to movable part 2, realize the purpose of adjusting back angle; And utilize the gap to eliminate the parts (not shown) and eliminate the gap that exists between engaging tooth, to improve the traveling comfort of seat.
Need to prove, it is not the application's inventive point place that the main function components such as parts and drive element are eliminated in the gear drive of the described seat angle adjustor of present embodiment, gap, those of ordinary skill in the art can realize fully based on prior art, therefore be not described in detail for aforementioned main function components herein.
Seat angle adjustor provided by the invention is closed, and its closed connecting structure is used for connecting the movable part 2 of seat angle adjustor and backrest or the seat frame of fixed parts 3 and connecting chair.In order to describe the closed connecting structure of this seat angle adjustor in detail, please in the lump referring to Fig. 5, this figure is the front view of seat angle adjustor of the present invention, that is, the D after the assembling of seat angle adjustor shown in Fig. 3 is completed is to view.
As shown in the figure, sheath 1 cover is contained in the outside of movable part 2 and fixed parts 3, and both are placed in the space of relative sealing; Link 4 is captiveed joint with the lateral surface 33 of fixed parts 3.
The sheath 1 of movable part 1 side has inside, radially-protruding the first limiting section 11, and the inner edge of this first limiting section 11 is positioned at the inboard of the outer rim of movable part 2; As shown in FIG., the first limiting section 11 is specially the inside radially-protruding ring-type limiting section of sheath 1, and for the ring-type limiting section, as long as its internal diameter namely can play spacing effect less than the external diameter of movable part.In fact, the first limiting section 11 is not limited to the ring-type shown in figure, all can as long as satisfy the matching requirements that movable part is connected with the chair back.
The sheath 1 of fixed parts 3 sides has inwardly radially-protruding the second limiting section 12, and the inner edge of this second limiting section 12 is positioned at the inboard of the outer rim of fixed parts 3, to play spacing effect.As shown in the figure, the second limiting section 12 of sheath 1 has four interior concane gaps 13, and correspondingly with four interior concane gaps 13 be provided with four links 4, each link 4 is arranged on the fixed parts 3 at corresponding interior concane gap 13 places, and this link 4 axially stretches out from the interior concane gap 13 of the second limiting section 12, is connected with seat support being used for.Be set to the independent member of independence and fixed parts 3 due to link 4, can effectively reduce manufacture difficulty, and then reduce its processing and manufacturing cost; Simultaneously, based on identical recliner body and different seat support connected piece structures, can satisfy different apolegamy requirements by the axial dimension of adjusting link 4, have comformability preferably.And this connection structure can effectively be utilized the radial outer periphery space of fixed parts 3, thereby on the basis of same radial size, can increase to greatest extent the sectional dimension of link 4 to obtain better load-carrying capacity.
Need to prove, the interior concane gap 13 that matches described in this programme and the quantity of link 4 are not limited to four of the well-distributeds shown in figure, in fact, as long as link 4 and the corresponding setting of interior concane gap 13, its concrete magnitude setting can be set according to actual needs, for example, one or except other of four a plurality of; Preferably, both all arrange two at least, and along circumferential uniform setting, to guarantee producing balanced forces.
In order further effectively to utilize the radial outer periphery space of fixed parts, can be improved further above-mentioned implementation, please in the lump referring to Fig. 6 and Fig. 7, wherein, Fig. 6 is the A-A section-drawing of Fig. 5; Fig. 7 is the B-B section-drawing of Fig. 5.
In the axis projection face, the outer radial periphery edge of link 4 and fixed parts 3 overlaps.That is to say, the outside cambered surface of link 4 41 is substantially identical with outer surface 32 radiuses of fixed parts 3 and align, thereby utilizes to greatest extent its radial outer periphery space.Advance just like shown in figure, the geomery at the radially internal and external circumferential edge of link 4 is identical, that is to say, the inboard cambered surface 42 of link 4 is identical with the radius size of outside cambered surface 41, the left and right is straight flange; And both sides of the edge be arranged in parallel.So arrange, link 4 adopts plate stamping technique to make, and can take full advantage of base material and realize scrape free blanking, further reduces manufacturing cost.
Should be appreciated that according to the specific requirement of seat angle adjustor with and use the difference of assembly space, this link 4 also can be designed as block grade for other versions, as long as the basic conception of using the application is all in its claimed scope.Certainly, adopt the such scheme plate stamping to be made for optimal case.
Preferably, between the outer surface 33 of link 4 and fixed parts, the preferred laser welding process that adopts realizes that between the two failure-free captives joint relation, and from radially outer edge place's welding, that is, adopt laser welding technology (direction shown in arrow in Fig. 6) from external arc 32.The characteristics fast based on Laser Welding Speed, that distortion is little can effectively reduce the impact of welding deformation.Obviously, be positioned at the outer surface 32 of fixed parts 3 due to the position of weld between link 4 and fixed parts 3, distant between sensitive structure (external tooth) on welding region and fixed parts 3, welding is very little on the impact of sensitive structure, therefore can reduce the volume of fixed parts, reduce the volume of whole recliner, increase field of application, reduce costs.
In addition, as shown in Figure 5, has the gap between the both sides end face 43 of link 4 and the sidewall of interior concane gap 13.And, in the axis projection face, the radially internal and external circumferential edge of link 4 and the equal arc transition in junction between the end face of both sides.So arrange, can effectively improve the assembly process process of this seat angle adjustor.
Be further to improve the assembly process process of this programme, can adopt bending technique to realize control position relation between the second limiting section 12 and fixed parts 3.Particularly, after part machined, the second limiting section 12 axially stretched out along sheath 1, movable part 2 and fixed parts 3 insert successively sheath 1 interior after, then second limiting section 12 that will axially stretch out carries out bending, offsets with the lateral surface 33 of fixed parts 3.
In this programme, sheath 1 inside has step surface 15, and medial surface 34 and this step surface 15 of fixed parts 3 offset; In addition, along fixed parts 3 axially, the bottom surface 16 of interior concane gap 13 is positioned at the middle part of fixed parts outer surface 32.Like this; after sheath 1 carries out bending, closing in; the space that forms between fixed parts 3 and sheath the first limiting component 11 is in the state of relative sealing; thereby guarantee that movable part 2 and the tooth mesh regional of fixed parts 3 are in sealed environment; avoid foreign matter to enter the tooth mesh regional through interior concane gap 13 places, improve the functional reliability of regulating mechanism.
See also Fig. 8, this figure is the outside drawing of seat of the present invention.This seat comprise hinged seat support and the chair back and be placed in seat support and the chair back between seat angle adjustor 100, wherein, seat angle adjustor 100 adopts foregoing recliner, and the basic structure of seat support and the chair back and annexation and prior art are identical, do not repeat them here.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. seat angle adjustor, comprise the movable part and the fixed parts that are built in sheath, and wherein, described movable part has internally toothed annulus and is used for captiveing joint with the chair back, and described fixed parts has external toothing and is used for captiveing joint with seat support; And the described sheath of movable part side has inwardly radially-protruding the first limiting section, and the inner edge of described the first limiting section is positioned at the inboard of the outer rim of described movable part; The described sheath of fixed parts side has inwardly radially-protruding the second limiting section, and the inner edge of described the second limiting section is positioned at the inboard of the outer rim of described fixed parts; It is characterized in that, the second limiting section of described sheath has interior concane gap, is provided with link on the described fixed parts of described indent indentation, there, and described link axially stretches out from the interior concane gap of described the second limiting section, is connected with seat support being used for.
2. seat angle adjustor according to claim 1, is characterized in that, described link and the corresponding setting of described interior concane gap, and both all arrange two at least, and along circumferential uniform setting.
3. seat angle adjustor according to claim 1 and 2, is characterized in that, in the axis projection face, the outer radial periphery edge of described link and described fixed parts overlaps.
4. seat angle adjustor according to claim 3, is characterized in that, the geomery at the radially internal and external circumferential edge of described link is identical, and both sides of the edge be arranged in parallel.
5. seat angle adjustor according to claim 4, is characterized in that, the inside of described sheath has step surface, and the medial surface of described fixed parts and this step surface offset; And along fixed parts axially, the bottom surface of described interior concane gap is positioned at the middle part of described fixed parts outer surface.
6. seat angle adjustor according to claim 5, is characterized in that, described link adopts plate stamping to make.
7. seat angle adjustor according to claim 6, is characterized in that, has the gap between the both sides end face of described link and the sidewall of described interior concane gap.
8. seat angle adjustor according to claim 1, is characterized in that, adopts laser welding between described link and fixed parts, and from radially outer edge place's welding.
9. seat angle adjustor according to claim 1, is characterized in that, in the axis projection face, and the radially internal and external circumferential edge of described link and the equal arc transition in junction between the end face of both sides.
10. seat, comprise hinged seat support and the chair back and be placed in seat support and the chair back between seat angle adjustor, it is characterized in that, described seat angle adjustor adopts recliner as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378954.2A CN103129421B (en) | 2011-11-24 | 2011-11-24 | Seat angle adjustor and there is the seat of this recliner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378954.2A CN103129421B (en) | 2011-11-24 | 2011-11-24 | Seat angle adjustor and there is the seat of this recliner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103129421A true CN103129421A (en) | 2013-06-05 |
| CN103129421B CN103129421B (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110378954.2A Active CN103129421B (en) | 2011-11-24 | 2011-11-24 | Seat angle adjustor and there is the seat of this recliner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103129421B (en) |
Citations (7)
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|---|---|---|---|---|
| CN101186188A (en) * | 2007-12-14 | 2008-05-28 | 邹耀忠 | Disc type gapless chair angle modulation device |
| CN101193770A (en) * | 2005-06-13 | 2008-06-04 | 英提尔汽车公司 | Disc recliner with memory |
| CN201136449Y (en) * | 2007-12-14 | 2008-10-22 | 邹耀忠 | Angle modulation device of disc type gapless seat |
| JP2009118940A (en) * | 2007-11-13 | 2009-06-04 | Toyota Boshoku Corp | Rotation stop device of vehicular seat |
| CN101585328A (en) * | 2008-05-22 | 2009-11-25 | 丰田纺织株式会社 | Connection devices |
| CN101941389A (en) * | 2009-07-04 | 2011-01-12 | 湖北中航精机科技股份有限公司 | Seat angle adjuster and seat with angle adjuster |
| CN202375556U (en) * | 2011-11-24 | 2012-08-15 | 湖北中航精机科技股份有限公司 | Chair angle regulator and chair provided with chair angle regulator |
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2011
- 2011-11-24 CN CN201110378954.2A patent/CN103129421B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101193770A (en) * | 2005-06-13 | 2008-06-04 | 英提尔汽车公司 | Disc recliner with memory |
| JP2009118940A (en) * | 2007-11-13 | 2009-06-04 | Toyota Boshoku Corp | Rotation stop device of vehicular seat |
| CN101186188A (en) * | 2007-12-14 | 2008-05-28 | 邹耀忠 | Disc type gapless chair angle modulation device |
| CN201136449Y (en) * | 2007-12-14 | 2008-10-22 | 邹耀忠 | Angle modulation device of disc type gapless seat |
| CN101585328A (en) * | 2008-05-22 | 2009-11-25 | 丰田纺织株式会社 | Connection devices |
| CN101941389A (en) * | 2009-07-04 | 2011-01-12 | 湖北中航精机科技股份有限公司 | Seat angle adjuster and seat with angle adjuster |
| CN202375556U (en) * | 2011-11-24 | 2012-08-15 | 湖北中航精机科技股份有限公司 | Chair angle regulator and chair provided with chair angle regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103129421B (en) | 2015-08-05 |
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Owner name: HUBEI AVIATION PRECISION MACHINERY TECHNOLOGY CO., Free format text: FORMER OWNER: ZHONGHANG PRECISIVE MACHINARY SCIENCE AND TECHNOLOGY CO., LTD., HUBEI Effective date: 20130619 |
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Effective date of registration: 20130619 Address after: 441003 Hubei city of Xiangfan province high tech Zone, Road No. 8 Applicant after: Hubei Aviation Precision Machinery Technology Co., Ltd. Address before: Xiangfan City, Hubei Province, 441003 Road No. 8 Applicant before: Zhonghang Precisive Machinary Science and Technology Co., Ltd., Hubei |
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