CN108284775B - Automobile seat backrest framework structure - Google Patents
Automobile seat backrest framework structure Download PDFInfo
- Publication number
- CN108284775B CN108284775B CN201810090740.7A CN201810090740A CN108284775B CN 108284775 B CN108284775 B CN 108284775B CN 201810090740 A CN201810090740 A CN 201810090740A CN 108284775 B CN108284775 B CN 108284775B
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- CN
- China
- Prior art keywords
- backrest
- flanging
- cross rod
- seat frame
- side plate
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Classifications
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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
- B60N2/68—Seat frames
-
- 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
- B60N2/68—Seat frames
- B60N2/682—Joining means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
Abstract
The invention discloses an automobile seat backrest framework structure, which comprises two seat frame side plate bottom plates and two backrest side plates, wherein the two seat frame side plate bottom plates are horizontally and oppositely arranged, the rear parts of the two seat frame side plate bottom plates are respectively connected with one backrest side plate, the tops of the two backrest side plates are connected with the same upper side beam, and a lower cross rod and an upper cross rod are sequentially and horizontally connected between the two backrest side plates below the upper side beam from bottom to top; the invention also improves the structure of the upper edge beam, effectively enlarges the surface area of the upper edge beam, is beneficial to reducing the bearing condition of the upper edge beam in unit area after the back foam is arranged, and prolongs the service life of the upper edge beam.
Description
Technical Field
The invention relates to the technical field of automobile seats, in particular to an automobile seat backrest framework structure.
Background
The automobile seat belongs to the basic device of an automobile, is an important safety component of the automobile, plays a role in supporting the weight of an occupant and relieving vibration and impact transmitted by an automobile body, and is directly related to the riding comfort and safety of the occupant.
The automobile seat framework comprises a backrest framework and a seat frame framework, wherein the seat frame framework is generally mainly composed of a side plate, a seat basin, a supporting piece and a connecting piece; the backrest framework mainly comprises a backrest left side plate, a backrest right side plate, side beams, a cross beam, a snake-shaped spring and the like which are connected between the backrest left side plate and the backrest right side plate. The traditional automobile backrest framework and seat frame framework are mostly prepared by adopting metal, the weight is heavier, the light-weight development requirement of the development of the current new energy automobile is not met, and if the backrest or seat frame framework is prepared by adopting plastic or alloy with lighter weight, the backrest or seat frame framework is easy to lower in strength, and particularly the joint among the backrest framework, the seat frame framework and the backrest bottom cross rod is easy to break and does not meet the safety design requirement.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automobile seat backrest framework structure.
The technical proposal is as follows: a backrest framework structure of an automobile seat is characterized in that: the seat frame comprises two seat frame side plate bottom plates and two backrest side plates, wherein the two seat frame side plate bottom plates are horizontally and oppositely arranged, the rear parts of the seat frame side plate bottom plates are respectively connected with one backrest side plate, the tops of the two backrest side plates are connected with the same upper side beam, and a lower cross rod and an upper cross rod are sequentially and horizontally arranged below the upper side beam from bottom to top;
the inner side edge and the outer side edge of the base plate of the seat frame side plate are respectively turned upwards to form a seat frame inner flanging and a seat frame outer flanging, the inner side edge and the outer side edge of the backrest side plate are respectively turned backwards to form a backrest inner flanging and a backrest outer flanging, and two ends of the lower cross rod are respectively connected with the corresponding backrest inner flanging and seat frame inner flanging through connecting parts;
the two end parts of the upper cross rod are respectively and fixedly connected with the corresponding backrest inward flanging and extend to the corresponding backrest outward flanging.
Compared with the traditional method that the lower cross rod is directly connected with the backrest side plate and the seat frame side plate, the strength of the seat frame side plate bottom plate and the backrest side plate is effectively improved by arranging the flanges on the seat frame side plate bottom plate and the backrest side plate, and meanwhile, the backrest lower cross rod is connected at the transitional connection part of the seat frame side plate bottom plate and the backrest side plate through the connecting part which is additionally arranged, so that the phenomenon that the seat frame inner flange and the backrest inner flange are easy to break due to overlarge stress can be effectively avoided; in addition, the two ends of the upper cross rod are simultaneously connected with the whole backrest side plate in the width direction, and are generally connected with the inner side of the backrest side plate only with the traditional upper cross rod, so that the connection strength of the upper cross rod and the backrest side plate is greatly improved.
As preferable:
the connecting part comprises a connecting bottom plate, a connecting coaming is arranged at the edge of the connecting bottom plate and is simultaneously connected with the inner flanging of the backrest and the inner flanging of the seat frame, and two ends of the lower cross rod are respectively connected with the corresponding connecting bottom plate. Adopt this structure to connect and form a spill chamber between bottom plate and the connection bounding wall, can effectively promote the intensity of three junction through this structure connection seat frame sideboard bottom plate, back sideboard and back bottom rail, compare with traditional mode that promotes intensity through strengthening thickness, this kind of structure not only can effectively lighten seat weight, can also avoid junction local material heap too thick simultaneously, influence the shaping of seat.
The part of the base frame side plate, which is close to the outer side, is butted with the corresponding backrest side plate, the part of the base frame side plate, which is close to the inner side, extends upwards and is fixedly connected with the corresponding backrest inner flanging to form the connecting bottom plate, the edge of the connecting bottom plate extends forwards to form the connecting coaming, and the connecting coaming is butted with the corresponding backrest inner flanging and the corresponding seat frame inner flanging. The transition connection part of the seat frame side plate bottom plate and the backrest side plate divides the seat frame side plate bottom plate into two parts which are respectively connected with different parts of the backrest, so that the connection is firmer.
The two ends of the lower cross rod are respectively in a streamline shape and extend to the corresponding backrest inward flanging and are fixedly connected with the corresponding connecting bottom plate and the backrest inward flanging. The backrest lower cross rod and the connecting part are connected more firmly and reliably, and the appearance is more attractive.
The upper cross rod comprises a cross rod body, two ends of the cross rod body are respectively and fixedly connected with the corresponding backrest inner flanging, a cross rod reinforcing plate is arranged on the cross rod body along the length direction of the cross rod body, and two ends of the cross rod reinforcing plate are respectively and fixedly connected with the corresponding backrest side plate and the corresponding backrest outer flanging. The strength of the whole upper cross rod can be further improved by arranging the cross rod body.
The cross bar reinforcing plate comprises an upper reinforcing plate and a lower reinforcing plate, wherein the upper edge and the lower edge of the cross bar body are respectively folded backwards to form the upper reinforcing plate and the lower reinforcing plate, and two ends of the upper reinforcing plate and two ends of the lower reinforcing plate are respectively in streamline form and extend towards the corresponding backrest flanging and are simultaneously fixedly connected with the corresponding backrest side plate and the backrest flanging. By adopting the scheme, the upper reinforcing plate and the lower reinforcing plate not only can further improve the strength of the cross rod body, but also can help to lighten the weight of the whole backrest.
The upper edge of the upper side beam is horizontally folded and extended backwards to form an upper expansion bearing part, and the lower edge of the upper side beam is folded and extended backwards and downwards to form a lower expansion bearing part. By adopting the scheme, the upper expansion bearing part and the lower expansion bearing part enlarge the surface area of the upper edge beam, and the contact surface between the back foam and the upper edge beam is greatly increased after the back foam is installed, so that the service life of the upper edge beam is prolonged.
The upper expansion bearing part and the lower expansion bearing part are connected with a headrest pole, a headrest pole hole is formed in the headrest pole, the upper end of the headrest pole hole extends upwards to penetrate out of the upper expansion bearing part, the lower end of the headrest pole hole extends downwards to penetrate out of the lower expansion bearing part, and the lower end face of the headrest pole hole is perpendicular to the hole core line of the headrest pole hole. After the headrest is inserted into the headrest rod hole by adopting the structure, if the lower part of the headrest rod hole does not extend continuously to be horizontal and is stopped at the lower expansion bearing part, the lower expansion bearing part is inclined, so that a gap exists between the nut for screwing and the inclined lower expansion bearing part, the nut can be not firmly screwed, the lower part of the headrest rod hole extends to be horizontal and then the nut can be tightly attached to the lower part of the headrest rod hole, and the screwing effect is better.
A side plate reinforcing rib is connected between the backrest inward flanging and the backrest outward flanging. The structure is beneficial to improving the strength of the backrest side plate.
And edge beam reinforcing ribs are connected between the upper expansion bearing part and the lower expansion bearing part. The adoption of the structure is beneficial to the improvement of the strength of the upper side beam.
The beneficial effects are that: the seat has the beneficial effects that the connecting part is arranged at the transitional joint of the seat frame, the backrest and the lower cross rod and is in a backward concave shape, and compared with the traditional mode of improving the strength by enhancing the thickness, the connecting mode can not only effectively lighten the weight of the seat, but also avoid the excessive thickness of local material piles at the joint and influence the forming effect of the seat; the invention also improves the structure of the upper edge beam, effectively enlarges the surface area of the upper edge beam, is beneficial to reducing the bearing condition of the upper edge beam in unit area after the back foam is arranged, and prolongs the service life of the upper edge beam.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a rear view of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
FIG. 5 is a D-D sectional view of FIG. 2;
FIG. 6 is a cross-sectional view of F-F of FIG. 2;
fig. 7 is an enlarged view of the portion m in fig. 2.
Detailed Description
The invention is further described below with reference to examples and figures.
As shown in fig. 1-3, an automobile seat backrest framework structure comprises two seat frame side plate bottom plates 1a and two backrest side plates 3a, wherein the two seat frame side plate bottom plates 1a are horizontally and oppositely arranged, one backrest side plate 3a is respectively connected to the rear parts of the seat frame side plate bottom plates, the top parts of the two backrest side plates 3a are connected with the same upper side beam 7, and a lower cross rod 2 and an upper cross rod 6 are horizontally arranged below the upper side beam 7 in sequence from bottom to top;
the inner side edge and the outer side edge of the seat frame side plate bottom plate 1a are respectively turned upwards to form a seat frame inner flanging 1c and a seat frame outer flanging 1b, the inner side edge and the outer side edge of the backrest side plate 3a are respectively turned backwards to form a backrest inner flanging 3c and a backrest outer flanging 3b, and two ends of the lower cross rod 2 are respectively connected with the corresponding backrest inner flanging 3c and the corresponding seat frame inner flanging 1c through connecting parts 4;
the two end parts of the upper cross bar 6 are respectively fixedly connected with the corresponding backrest inward flanges 3c and extend to the corresponding backrest outward flanges 3b.
The connecting portion 4 comprises a connecting bottom plate 4a, the connecting bottom plate 4a is flush with the corresponding rear edge of the backrest inward flanging 3c, a connecting coaming 4b is arranged at the edge of the connecting bottom plate 4a, the connecting coaming 4b is connected with the backrest inward flanging 3c and the seat frame inward flanging 1c at the same time, and two ends of the bottom cross rod 2 are connected with the corresponding connecting bottom plate 4a respectively.
The part of the seat frame side plate bottom plate 1a, which is close to the outer side, is butted with the corresponding backrest side plate 3a, the part of the seat frame side plate bottom plate 1a, which is close to the inner side, extends upwards and is fixedly connected with the corresponding backrest inward flanging 3c to form the connecting bottom plate 4a, the edge of the connecting bottom plate 4a extends forwards to form the connecting coaming 4b, and the connecting coaming 4b is butted with the corresponding backrest inward flanging 3c and the seat frame inward flanging 1 c.
In order to make the connection of the bottom rail 2 stronger, the two ends of the bottom rail 2 are respectively streamline and extend to the corresponding backrest inward flanges 3c, and are fixedly connected with the corresponding connecting bottom plate 4a and the corresponding backrest inward flanges 3 c. In order to reduce the weight of the backrest framework, the rear side surface of the bottom cross bar 2 is provided with a strip-shaped weight reducing groove 5 along the length direction, and the length of the weight reducing groove 5 is smaller than or equal to the distance between the connecting parts 4 at the two ends of the bottom cross bar 2.
The upper cross bar 6 comprises a cross bar body 6a, two ends of the cross bar body 6a are respectively and fixedly connected with the corresponding backrest inward flange 3c, a cross bar reinforcing plate is arranged on the cross bar body 6a along the length direction of the cross bar body, two ends of the cross bar reinforcing plate are respectively and fixedly connected with the corresponding backrest side plate 3a and the backrest outward flange 3b, for improving the comfort level of passengers, the middle part of the upper cross bar 6 is gradually concavely bent towards the back, and the shape of the upper cross bar 6 is more in accordance with the ergonomics.
Specifically, the cross bar reinforcing plate comprises an upper reinforcing plate 6c and a lower reinforcing plate 6b, the upper edge and the lower edge of the cross bar body 6a are respectively folded back to form the upper reinforcing plate 6c and the lower reinforcing plate 6b, and two ends of the upper reinforcing plate 6c and the lower reinforcing plate 6b are respectively in a streamline shape to extend to the corresponding backrest flanging 3b and are simultaneously fixedly connected with the corresponding backrest side plate 3a and the backrest flanging 3b.
As shown in fig. 5-7, for convenient installation of the backrest foam, the upper edge of the upper side beam 7 is folded horizontally and extended backward to form an upper expansion bearing part 7b, the lower edge of the upper side beam 7 is folded backward and extended downward to form a lower expansion bearing part 7a, a headrest pole is connected between the upper expansion bearing part 7b and the lower expansion bearing part 7a, a headrest pole hole 8 is arranged in the headrest pole, the upper end of the headrest pole hole 8 extends upward to penetrate out of the upper expansion bearing part 7b, the lower end of the headrest pole hole 8 extends downward to penetrate out of the lower expansion bearing part 7a, the lower end face of the headrest pole hole 8 is mutually perpendicular to the hole axis of the headrest pole hole 8, the cylindrical surface of the headrest pole is fixedly connected with the rear side surface of the upper side beam 7, and downward orthographic projection of the upper expansion bearing part 7b covers the downward orthographic projection of the lower expansion bearing part 7 a.
In order to make the headrest more firmly installed, the headrest rod holes 8 are two in number, the two headrest rod holes 8 are respectively close to the two backrest side plates 3a, and one part of the outer wall of the headrest rod hole 8 is fixedly connected with the rear side surface of the upper edge beam 7.
The side plate reinforcing ribs 3d are connected between the backrest inward flange 3c and the backrest outward flange 3b, the side plate reinforcing ribs 3d are in an S shape from the lower part of the backrest side plate 3a to the top of the backrest side plate, and the side plate reinforcing ribs 3d are fixedly connected with the backrest outward flange 3b, the backrest inward flange 3c and the backrest side plate 3 a.
The edge beam reinforcing ribs 9 are connected between the upper extension bearing parts 7b and the lower extension bearing parts 7a, the edge beam reinforcing ribs 9 are in a V shape, the opening ends of the edge beam reinforcing ribs 9 are fixedly connected with the upper extension bearing parts 7b, and the other ends of the edge beam reinforcing ribs 9 are fixedly connected with the lower extension bearing parts 7 a.
The seat frame bottom plate 1a, the backrest side plate 3a, the bottom cross bar 2, the upper cross bar 6 and the upper side beam 7 are made of magnesium aluminum alloy, and the whole backrest framework structure is integrally formed.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. An automobile seat back frame structure, characterized in that: the novel seat frame comprises two seat frame side plate bottom plates (1 a) and two backrest side plates (3 a), wherein the two seat frame side plate bottom plates (1 a) are horizontally and oppositely arranged, the rear parts of the seat frame side plate bottom plates are respectively connected with one backrest side plate (3 a), the tops of the two backrest side plates (3 a) are connected with the same upper side beam (7), and a lower cross rod (2) and an upper cross rod (6) are sequentially and horizontally arranged below the upper side beam (7) from bottom to top;
the inner side edge and the outer side edge of the seat frame side plate bottom plate (1 a) are respectively turned upwards to form a seat frame inner flanging (1 c) and a seat frame outer flanging (1 b), the inner side edge and the outer side edge of the backrest side plate (3 a) are respectively turned backwards to form a backrest inner flanging (3 c) and a backrest outer flanging (3 b), and two ends of the lower cross rod (2) are respectively connected with the corresponding backrest inner flanging (3 c) and the corresponding seat frame inner flanging (1 c) through connecting parts (4);
the two end parts of the upper cross bar (6) are respectively fixedly connected with the corresponding backrest inward flanging (3 c) and extend to the corresponding backrest outward flanging (3 b);
the connecting part (4) comprises a connecting bottom plate (4 a), a connecting coaming (4 b) is arranged at the edge of the connecting bottom plate (4 a), the connecting coaming (4 b) is simultaneously connected with the backrest inward flanging (3 c) and the seat frame inward flanging (1 c), and two ends of the lower cross rod (2) are respectively connected with the corresponding connecting bottom plate (4 a);
a part of the seat frame side plate bottom plate (1 a) close to the outer side is in butt joint with the corresponding backrest side plate (3 a), a part of the seat frame side plate bottom plate (1 a) close to the inner side extends upwards and is fixedly connected with the corresponding backrest inward flanging (3 c) to form the connecting bottom plate (4 a), the edge of the connecting bottom plate (4 a) extends forwards to form the connecting coaming (4 b), and the connecting coaming (4 b) is in butt joint with the corresponding backrest inward flanging (3 c) and the seat frame inward flanging (1 c);
a side plate reinforcing rib (3 d) is connected between the backrest inward flange (3 c) and the backrest outward flange (3 b).
2. A car seat back frame structure according to claim 1, wherein: the two ends of the lower cross rod (2) are respectively in a streamline shape and extend to the corresponding backrest inward flanging (3 c) and are fixedly connected with the corresponding connecting bottom plate (4 a) and the backrest inward flanging (3 c) at the same time.
3. A car seat back skeleton structure according to any one of claims 1-2, wherein: the upper cross rod (6) comprises a cross rod body (6 a), two ends of the cross rod body (6 a) are respectively and fixedly connected with the corresponding backrest inward flanging (3 c), a cross rod reinforcing plate is arranged on the cross rod body (6 a) along the length direction of the cross rod body, and two ends of the cross rod reinforcing plate are respectively and fixedly connected with the corresponding backrest side plate (3 a) and the backrest outward flanging (3 b).
4. A car seat back frame structure according to claim 3, wherein: the cross bar reinforcing plate comprises an upper reinforcing plate (6 c) and a lower reinforcing plate (6 b), wherein the upper edge and the lower edge of the cross bar body (6 a) are respectively folded backwards to form the upper reinforcing plate (6 c) and the lower reinforcing plate (6 b), and two ends of the upper reinforcing plate (6 c) and two ends of the lower reinforcing plate (6 b) are respectively in streamline form to correspondingly extend to the backrest flanging (3 b) and are simultaneously fixedly connected with the corresponding backrest side plate (3 a) and the backrest flanging (3 b).
5. A car seat back frame structure according to claim 4, wherein: the upper edge of the upper side beam (7) is horizontally folded and extended backwards to form an upper expansion bearing part (7 b), and the lower edge of the upper side beam (7) is folded and extended backwards and downwards to form a lower expansion bearing part (7 a).
6. A car seat back frame structure according to claim 5, wherein: the novel headrest is characterized in that a headrest pole is connected between the upper extension bearing part (7 b) and the lower extension bearing part (7 a), a headrest pole hole (8) is formed in the headrest pole, the upper end of the headrest pole hole (8) extends upwards to penetrate out of the upper extension bearing part (7 b), the lower end of the headrest pole hole (8) extends downwards to penetrate out of the lower extension bearing part (7 a), and the lower end face of the headrest pole hole (8) is perpendicular to the hole core line of the headrest pole hole (8).
7. A car seat back frame structure according to claim 5, wherein: and edge beam reinforcing ribs (9) are connected between the upper expansion bearing parts (7 b) and the lower expansion bearing parts (7 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090740.7A CN108284775B (en) | 2018-01-30 | 2018-01-30 | Automobile seat backrest framework structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090740.7A CN108284775B (en) | 2018-01-30 | 2018-01-30 | Automobile seat backrest framework structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108284775A CN108284775A (en) | 2018-07-17 |
| CN108284775B true CN108284775B (en) | 2023-08-29 |
Family
ID=62836300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810090740.7A Active CN108284775B (en) | 2018-01-30 | 2018-01-30 | Automobile seat backrest framework structure |
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| Country | Link |
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| CN (1) | CN108284775B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3847053B1 (en) * | 2018-09-04 | 2023-10-25 | Safran Seats USA LLC | Light weight metal back with extra living space |
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| CN104760526A (en) * | 2014-01-08 | 2015-07-08 | 郑州翎羽新材料有限公司 | Seat backrest skeleton of intercity bus |
| CN205890635U (en) * | 2016-08-02 | 2017-01-18 | 杭州斗源机械电子有限公司 | Seat support body |
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|---|---|---|---|---|
| GB438465A (en) * | 1934-06-19 | 1935-11-18 | Nesta Ltd | Improvements in or relating to seats for omnibuses |
| US5568961A (en) * | 1994-08-10 | 1996-10-29 | Findlay Industries | Tubular seat frame |
| US6375267B1 (en) * | 1999-11-29 | 2002-04-23 | Tachi-S Co., Ltd. | Seat back frame structure of a vehicle seat |
| JP2011045567A (en) * | 2009-08-27 | 2011-03-10 | Kokuyo Co Ltd | Swivel chair |
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| Publication number | Publication date |
|---|---|
| CN108284775A (en) | 2018-07-17 |
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