CN110745039A - Chair backrest - Google Patents
Chair backrest Download PDFInfo
- Publication number
- CN110745039A CN110745039A CN201911243049.9A CN201911243049A CN110745039A CN 110745039 A CN110745039 A CN 110745039A CN 201911243049 A CN201911243049 A CN 201911243049A CN 110745039 A CN110745039 A CN 110745039A
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- CN
- China
- Prior art keywords
- adjusting mechanism
- backrest
- backrest body
- linear
- connecting rod
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- Pending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a seat backrest, which comprises a backrest body and an outer fixing piece, wherein a front-back adjusting mechanism is arranged on the outer fixing piece, the backrest body is arranged on the front-back adjusting mechanism, and the front-back adjusting mechanism can drive the backrest body to move back and forth. The seat frame has the remarkable effects that the technical problem that the traditional seat frame cannot integrally move back and forth is solved, and the functions of abdicating, accommodating and hiding are realized on the change adjustment of the seat frame or the change adjustment of other parts on an automobile.
Description
Technical Field
The invention relates to an automobile accessory, in particular to a backrest of an automobile seat.
Background
The automobile seat framework is an internal key accessory for supporting the automobile seat, and the realization of a plurality of functions is completed through the design and modification of the seat framework. The automobile seat framework is divided into a front row seat framework, a middle row seat framework and a rear row seat framework; of course, for vehicles with a greater number of occupants, the number and rows of seats will also be greater. Generally, the functions and adjustment methods of the seat frame include: the backrest framework driven by the angle adjuster rotates forwards and backwards, the seat frame framework moves forwards and backwards, and the height and the elevation angle of the seat frame framework are adjusted. Based on the more and more mature consumer market, the functional demand of car seat is higher and higher, has proposed by the host computer factory, carries out variable design with back row seat, makes it can satisfy three people and take through the regulation, can change into two people's commercial models again. The existing design adopts a mode of directly arranging a turnover armrest on a backrest, the lower part of the turnover armrest is hinged with the backrest, and when the turnover armrest is stored in the backrest, a three-person riding mode can be formed; when the armrests are turned over and come out of the backrest, the armrests divide the seats on the two sides to form a two-person business model. It has the following disadvantages:
①, the seat frame part of the back row seat can not be separated, the two side seats are still connected together, the form can not form two completely independent parts;
②, because the armrest is embedded in the backrest, the length and height of the back armrest are difficult to be considered, specifically, a, if the armrest is long enough after being opened, the lower connection point (hinge point) of the armrest needs to be closer to the seat frame, which makes the height of the armrest after being opened very low, which seriously affects the riding experience, the current solution is to increase the thickness of the armrest greatly to be padded, which makes the armrest too heavy, b, if the armrest is high enough after being opened, the lower connection point (hinge point) of the armrest needs to be raised far away from the seat frame, which makes the length of the armrest after being opened very short, which also affects the riding experience, or as stated at a.
Therefore, the problems proposed by the host factory need to be reviewed and researched to design a seat frame with more comprehensive functionality and better experience, particularly for the rear row.
In the face of the above drawbacks, researchers need to consider at least the following:
1. how to realize the seat frame of the back row seat to carry out the recoverable adjustment between the three-person position and the two-person position;
2. when the three-person position is changed to the two-person position, how to place, store or hide the seat frame at the position of the subtracted seat frame;
3. how to ensure that the back row handrail has enough length and enough height after being opened and cannot increase the thickness of the handrail.
Disclosure of Invention
In view of the above, the present invention provides a seat back that can move back and forth integrally in order to provide a space for a seat frame of a seat to accommodate when the seat frame is adjusted.
The technical scheme is as follows:
a seat back is characterized in that: the backrest comprises a backrest body and an outer fixing piece, wherein a front-back adjusting mechanism is arranged on the outer fixing piece, the backrest body is arranged on the front-back adjusting mechanism, and the front-back adjusting mechanism can drive the backrest body to move back and forth.
Preferably, the front-back adjusting mechanism is either a linear adjusting mechanism or a connecting rod overturning adjusting mechanism.
Preferably, the linear adjusting mechanism includes a linear feeding device, a fixed portion of the linear feeding device is connected to the outer fixing member, and the backrest body is provided on a movable portion of the linear feeding device.
Preferably, the linear adjustment mechanism includes a linear guide;
the linear guide part is a sleeve and a guide rod which are in sliding fit;
the linear guide part is a sliding rail and a sliding block which are in sliding fit.
Preferably, the connecting rod overturning adjusting mechanism comprises an overturning connecting rod, two ends of the overturning connecting rod are respectively hinged with the outer fixing piece and the backrest body, and the backrest body is further connected with an overturning stabilizing piece.
Preferably, the turning stabilizing member is a stabilizing link, one end of the stabilizing link is hinged to the backrest body, and the other end of the stabilizing link is hinged to the outer fixing member.
Preferably, the number of the turnover connecting rods is two, and the two turnover connecting rods are arranged oppositely and are respectively close to the left side and the right side of the backrest body.
And a synchronous stabilizer bar is connected between the two turnover connecting rods.
Preferably, the turnover connecting rod or the synchronous stabilizer bar is further connected with a driving linear motor, a shell of the driving linear motor is hinged with the outer fixing piece, a propelling part of the driving linear motor is hinged with the turnover connecting rod, and the propelling part of the driving linear motor is hinged with the synchronous stabilizer bar.
Preferably, the external fixing member is either a vehicle body or a support.
Compared with the prior art, the seat frame has the advantages that the technical problem that the traditional seat frame cannot move back and forth integrally is solved, and the functions of abdicating, accommodating and hiding are achieved for the change adjustment of the seat frame or the change adjustment of other parts on the automobile.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
FIG. 2 is a schematic diagram of the present invention;
fig. 3 is a schematic structural view of the backrest body 10 moving to the foremost position;
fig. 4 is a schematic structural view of the backrest body 10 when moved to the rearmost position;
fig. 5 is a schematic view of the connecting lines of the hinge points when the backrest body 10 moves to the most forward position;
fig. 6 is a schematic view of the connecting lines of the hinge points when the backrest body 10 moves to the rearmost position;
fig. 7 is a schematic diagram showing a connection comparison of the hinge points when the backrest body 10 is at the front and rear positions.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1, 2, 3, and 4, a seat back includes a back body 10 and a fixing portion 90, wherein a front-back adjusting mechanism 80 is disposed on the fixing portion 90, the back body 10 is disposed on the front-back adjusting mechanism 80, and the front-back adjusting mechanism 80 can drive the back body 10 to move back and forth. The outer fixing member 90 may be a car body, a seat, or a car seat frame, and the outer fixing member 90 may be used as the outer fixing member 90 as long as it can maintain a relative position fixed when the backrest body 10 moves forward and backward, and does not synchronously link with the backrest body 10.
Generally, the scheme is applied to a middle-row or rear-row automobile seat, and the middle-row or rear-row automobile seat comprises a backrest framework assembly of the middle-row or rear-row automobile seat, wherein the backrest body 10 is embedded in the backrest framework assembly and is independent of the backrest framework assembly, the backrest framework assembly is obliquely arranged and relatively fixed, the upper part of the backrest framework assembly is backwards inclined, the lower part of the backrest framework assembly is forwards inclined, the backrest body 10 is positioned in the middle of the backrest framework assembly, so that the middle position of the backrest framework assembly (namely the backrest body 10) is independently adjusted, and the backrest body 10 stops when moving forwards to be flush with the backrest framework assembly and reaches the foremost end; the backrest body 10 moves backwards to form an abdicating accommodating space between the front of the backrest body and the plane where the backrest framework assembly is located so as to accommodate the adjustable part of the seat frame framework or play other hiding and accommodating functions.
The front and rear adjusting mechanism 80 may be a linear adjusting mechanism, specifically, the linear adjusting mechanism includes a linear feeding device, a fixed portion of the linear feeding device is connected with the fixed portion 90, and a movable portion of the linear feeding device is provided with the backrest body 10;
the linear feeding device can be an automatic feeding device, such as a linear adjusting motor, an electric push rod or a telescopic cylinder, wherein the air source/hydraulic oil of the telescopic cylinder can be provided by the brake power assisting part together, and the automatic linear adjusting mechanism can theoretically directly drive the backrest body 10 to move back and forth;
or the linear adjusting mechanism can be adjusted manually, and the linear feeding device comprises a linear guide piece;
the linear guide part is a sleeve and a guide rod which are in sliding fit; the sleeve can be used as a fixed part/movable part of the linear feeding device, and the guide rod is used as a movable part/fixed part of the linear feeding device;
the linear guide part is a sliding rail and a sliding block which are in sliding fit; the slide rail can be used as a fixed part/a movable part of the linear feeding device, and the slide block is used as a movable part/a fixed part of the linear feeding device;
the driving mode of manual adjustment can be a screw nut mode, the nut in the driving mode can be connected with the movable part of the linear feeding device, the screw rod is installed through a bearing, and the crank is arranged at the tail end of the screw rod.
The linear guide piece can also be matched with an automatic linear feeding device for use, and the linear guide piece plays a role in guiding the automatic linear feeding device.
The fore-aft adjustment mechanism 80 may be a link roll-over adjustment mechanism. Specifically, the connecting rod overturning adjusting mechanism can be a three-connecting-rod mechanism or a four-connecting-rod mechanism.
As a more specific embodiment: the connecting rod overturning adjusting mechanism comprises two overturning connecting rods 81, the two overturning connecting rods 81 are arranged oppositely and are respectively close to the left side and the right side of the backrest body 10, two ends of each overturning connecting rod 81 are respectively hinged with the outer fixing piece 90 and the backrest body 10, and the backrest body 10 is further connected with an overturning stabilizing piece 83; the turning stabilizer 83 is a stabilizer link, one end of which is hinged to the backrest body 10, and the other end of which is hinged to the outer fixing member 90; the flip link 81, the backrest body 10 and the stabilizing link form a three-link structure. A synchronous stabilizer bar 84 is fixedly connected between the two turnover connecting rods 81. The turning link 81 or the synchronous stabilizer bar 84 is further connected with a driving linear motor 85, a housing of the driving linear motor 85 is hinged with the outer fixing member 90, a propelling part of the driving linear motor 85 is hinged with the turning link 81, and a propelling part of the driving linear motor 85 is hinged with the synchronous stabilizer bar 84.
The backrest body 10 is rectangular and square, the backrest body 10 is arranged in an inclined manner, the upper part of the backrest body 10 tilts backwards, the lower part of the backrest body 10 tilts forwards, two hinged support lugs 11 are respectively arranged on the backrest body 10 corresponding to the two overturning connecting rods 81, two mounting supports s are oppositely arranged below the backrest body 10 and form the fixing part 90, the two mounting supports s correspond to the two overturning connecting rods 81 one by one, the overturning connecting rods 81 are arranged in an inclined manner, the upper part of the overturning connecting rods 81 tilts backwards, the lower part of the overturning connecting rods 81 tilts forwards, the lower ends of the overturning connecting rods 81 are hinged to the corresponding mounting supports s, the upper ends of the overturning connecting rods 81 are hinged to the corresponding hinged support lugs 11, the number of the stabilizing connecting rods is two, and the two stabilizing connecting rods are oppositely arranged and respectively close to the left side and the right side of the backrest body 10, the stabilizing connecting rod is obliquely arranged, the upper part of the stabilizing connecting rod is inclined backwards, the lower part of the stabilizing connecting rod is inclined forwards, the lower end of the stabilizing connecting rod is hinged with the backrest body 10, and the upper end of the stabilizing connecting rod is hinged with the backrest framework assembly.
As can be seen from fig. 5, 6 and 7, the connecting line of the two hinge points of the turning link 81 is L1The connecting line of the two hinge points of the backrest body 10 is L2The connecting line of the two hinge points of the stabilizing connecting rod is L3(ii) a Line L1The included angle (acute angle, same below) with the horizontal plane is α1Line L of2The included angle with the horizontal plane is α2Line L of3The included angle with the horizontal plane is α3α both when the backrest body 10 is moved to the most forward or most rearward position and during forward and rearward movement of the backrest body 102＞α3And α1＜α2. Since the backrest body 10 is disposed obliquely, a space can be left under the backrest body 10. The above angle setting enables the backrest body 10 to move obliquely downward (corresponding to the direction perpendicular to the plane of the backrest body 10) while moving rearward; so as to prevent the backrest body 10 from moving upward, and make the backrest body 10 leave more (thickness) space for the same displacement.
Only the frame portion of the seat (back, seat frame) is shown, the seat assembly further comprises foam and a cover, and the back can provide enough space for the seat frame (seat cushion) through reasonable size design.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. A seat back, characterized by: the backrest comprises a backrest body (10) and an outer fixing piece (90), wherein a front-back adjusting mechanism (80) is arranged on the outer fixing piece (90), the backrest body (10) is arranged on the front-back adjusting mechanism (80), and the front-back adjusting mechanism (80) can drive the backrest body (10) to move back and forth.
2. A seat back according to claim 1, wherein: the front and back adjusting mechanism (80) is either a linear adjusting mechanism or a connecting rod overturning adjusting mechanism.
3. A seat back according to claim 2, wherein: the linear adjusting mechanism comprises a linear feeding device, a fixed part of the linear feeding device is connected with the outer fixed part (90), and a movable part of the linear feeding device is provided with the backrest body (10).
4. A seat back according to claim 2 or 3, wherein: the linear adjusting mechanism comprises a linear guide piece;
the linear guide part is a sleeve and a guide rod which are in sliding fit;
the linear guide part is a sliding rail and a sliding block which are in sliding fit.
5. A seat back according to claim 2, wherein: the connecting rod overturning adjusting mechanism comprises an overturning connecting rod (81), two ends of the overturning connecting rod (81) are respectively hinged with the outer fixing piece (90) and the backrest body (10), and the backrest body (10) is further connected with an overturning stabilizing piece (83).
6. A seat back according to claim 5, wherein: the overturning stabilizing part (83) is a stabilizing connecting rod, one end of the stabilizing connecting rod is hinged with the backrest body (10), and the other end of the stabilizing connecting rod is hinged with the outer fixing part (90).
7. A seat back according to claim 5 or 6, wherein: the backrest is characterized in that the number of the turnover connecting rods (81) is two, and the turnover connecting rods (81) are arranged just opposite to each other and are respectively close to the left side and the right side of the backrest body (10).
8. A seat back according to claim 7, wherein: a synchronous stabilizer bar (84) is connected between the two overturning connecting rods (81).
9. A seat back according to claim 8, wherein: the turnover connecting rod (81) or the synchronous stabilizer bar (84) is further connected with a driving linear motor (85), a shell of the driving linear motor (85) is hinged with the outer fixing piece (90), a propelling part of the driving linear motor (85) is hinged with the turnover connecting rod (81) or the propelling part of the driving linear motor (85) is hinged with the synchronous stabilizer bar (84).
10. A seat back according to claim 1, 2, 3, 4, 5, 6, 8 or 9, wherein: the outer fixing piece (90) is either a vehicle body or a support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243049.9A CN110745039A (en) | 2019-12-06 | 2019-12-06 | Chair backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243049.9A CN110745039A (en) | 2019-12-06 | 2019-12-06 | Chair backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110745039A true CN110745039A (en) | 2020-02-04 |
Family
ID=69285701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911243049.9A Pending CN110745039A (en) | 2019-12-06 | 2019-12-06 | Chair backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110745039A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106933U (en) * | 1989-02-06 | 1990-08-24 | ||
| CN102245428A (en) * | 2008-11-01 | 2011-11-16 | 江森自控科技公司 | Collapsible seat |
| EP2562033A1 (en) * | 2011-08-22 | 2013-02-27 | Peugeot Citroën Automobiles Sa | Stowable seat for vehicle |
| CN202806453U (en) * | 2012-08-23 | 2013-03-20 | 苏州江南航天机电工业有限公司 | Four-bar linkage long reversible seat |
| CN108657035A (en) * | 2017-03-28 | 2018-10-16 | 长城汽车股份有限公司 | Seat and vehicle |
| JP2019077223A (en) * | 2017-10-20 | 2019-05-23 | テイ・エス テック株式会社 | Vehicle seat |
| CN211468229U (en) * | 2019-12-06 | 2020-09-11 | 重庆延锋安道拓汽车部件系统有限公司 | Chair back |
-
2019
- 2019-12-06 CN CN201911243049.9A patent/CN110745039A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106933U (en) * | 1989-02-06 | 1990-08-24 | ||
| CN102245428A (en) * | 2008-11-01 | 2011-11-16 | 江森自控科技公司 | Collapsible seat |
| EP2562033A1 (en) * | 2011-08-22 | 2013-02-27 | Peugeot Citroën Automobiles Sa | Stowable seat for vehicle |
| CN202806453U (en) * | 2012-08-23 | 2013-03-20 | 苏州江南航天机电工业有限公司 | Four-bar linkage long reversible seat |
| CN108657035A (en) * | 2017-03-28 | 2018-10-16 | 长城汽车股份有限公司 | Seat and vehicle |
| JP2019077223A (en) * | 2017-10-20 | 2019-05-23 | テイ・エス テック株式会社 | Vehicle seat |
| CN211468229U (en) * | 2019-12-06 | 2020-09-11 | 重庆延锋安道拓汽车部件系统有限公司 | Chair back |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 99, Pingtai Road, huangmaoping, Liangjiang New District, Chongqing Applicant after: Chongqing andotuo Auto Parts System Co.,Ltd. Address before: No. 99, Pingtai Road, huangmaoping, Liangjiang New District, Chongqing Applicant before: Chongqing Yanfeng Johnson Automotive Parts System Co.,Ltd. |