KR101771011B1 - Hybrid type vehicle rear seat back frame - Google Patents

Hybrid type vehicle rear seat back frame Download PDF

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Publication number
KR101771011B1
KR101771011B1 KR1020150172287A KR20150172287A KR101771011B1 KR 101771011 B1 KR101771011 B1 KR 101771011B1 KR 1020150172287 A KR1020150172287 A KR 1020150172287A KR 20150172287 A KR20150172287 A KR 20150172287A KR 101771011 B1 KR101771011 B1 KR 101771011B1
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KR
South Korea
Prior art keywords
frame
steel structure
composite
assembly
steel
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Application number
KR1020150172287A
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Korean (ko)
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KR20170065917A (en
Inventor
윤재호
김미로
Original Assignee
한화첨단소재 주식회사
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Priority to KR1020150172287A priority Critical patent/KR101771011B1/en
Publication of KR20170065917A publication Critical patent/KR20170065917A/en
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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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/065—Rear seats
    • 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
    • B60N2/686—Panel like structures

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

The present invention relates to a rear seatback frame for a vehicle, comprising: a composite frame; A steel structure fixedly attached to a rear surface of the composite frame; And a nonwoven fabric attached to cover the steel structure to cover the steel structure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hybrid rear seatback frame,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a rear seatback frame for a hybrid vehicle, and more particularly, to a rear seatback frame for a hybrid vehicle that does not cause weight increase while using steel, thereby satisfying strength characteristics and improving com portability.

Generally, a seat back of a car is connected to a seat cushion supporting a passenger's hips to support a passenger's back, thereby providing a comfortable and comfortable boarding environment.

Such a seatback forms a rib 12 and a channel 14 on the seatback frame 10 as shown in Fig. 1 for maintaining the strength.

However, such a structure is effective in maintaining an appropriate level of strength but has a limitation in sufficiently increasing the stiffness of the product.

There is also an example in which reinforcing brackets or plate-shaped reinforcements are used to reinforce the strength. In this case, however, the weight is so large that it has disadvantages in terms of competitiveness and is disadvantageous in terms of stiffness.

In other words, the stiffness of the seat back frame is different from the strength. The strength refers to a strong degree of an object, that is, a deformation resistance until a material is broken when a load is applied to the material, Refers to the degree of hardness or hardness of the material, and in the case of a seatback frame, the term refers to the quality of emotional quality closely related to the mottling.

In other words, for example, when the occupant is seated, when the folding of the seat is down, when the seat back frame is not rigid when the armrest is pushed, a squeaking occurs. Such an emotional quality varies from person to person, It is difficult to quantify, but it needs to be minimized.

In recent years, the use of fiber-reinforced thermoplastic resin (GMT, LFT, etc.) capable of lightening as well as strength improvement has achieved remarkable advances in technology related to seat back frames.

Such an example is for solving the weight problem of a typical steel seatback frame as shown in Fig. 2 (a), in which a seatback frame using a composite material of the form as shown in Fig. 1, a steel bracket as shown in Fig. 2 (b) And a seatback frame in the form of a sheet.

However, steel is traditionally strong and rigid, but heavy, composite seatbag frames have a high strength due to their material properties, but have a high elasticity, resulting in weaker stiffness compared to steel. In a composite material, And rigidity, but it has a disadvantage in that it can not satisfy required performance in a high performance specification requiring high performance.

In addition, if the weight of the seat back frame is increased, the fuel efficiency of the vehicle is deteriorated. If the seat back frame thickness is increased, a feeling of foreign object is felt when seating the passenger.

Korea Patent Registration No. 10-1529069 (Jun. 10, 2015) 'Seatback frame with improved rigidity' Korea Patent Registration No. 10-1536146 (Jul. 2015) 'Lightweight Seatback Frame' Korea Patent Registration No. 10-1047563 (2011.07.01.) 'Vehicle Seatback Frame Assembly' Korean Patent Laid-Open No. 10-2014-0125577 (Apr. 29, 2014) 'Automotive strap-back frame and its manufacturing method'

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and has been made to solve the above problems. The present invention has been made to solve the above problems, A rear seatback frame for a hybrid vehicle which can satisfy both strength and stiffness characteristics, and further improves com portability characteristics.

In order to achieve the above object, the present invention provides a rear seat back frame for a vehicle, comprising: a composite frame having a channel formed on a front surface thereof; A steel structure fixedly attached to a rear surface of the composite frame; Wherein the steel structure is formed by molding a high tensile steel sheet having a tensile strength of 600-800 MPa into a mold for forming a closed circuit and forming a circular or hollow square shape in cross section, Being; A rim, which is an end of the nonwoven fabric, is inserted into the channel and finished; Wherein the steel structure is bolted or screwed while being inserted into an assembly groove formed on a rear surface of the composite frame; The steel structure is provided with a large force receiving structure including a latch assembly, a center belt guide, a center hinge portion, and a side hinge portion in a rear seatback frame; Wherein the composite frame is provided with a structure receiving a relatively small force including a headrest assembly, a tether anchor assembly, and an armrest assembly.

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According to the present invention, it is possible to obtain an effect of achieving both effective shock dispersion, strength improvement, stiffness improvement, andcomparable improvement, by using steel in a hybrid form, while concentrating all of the force-receiving portions on the steel.

1 and 2 are views showing an example of a conventional rear seatback frame for a vehicle.
3 is an exemplary exploded view showing the concept of a rear seatback frame for a vehicle according to the present invention.
4 is a conceptual view of a rear seatback frame for a hybrid vehicle according to the present invention.
5 is an exemplary view of a steel structure constituting a rear seatback frame for a hybrid type vehicle according to the present invention.
6 is an exemplary view showing an assembled state of a rear seatback frame for a hybrid vehicle according to the present invention and a cross-sectional view of a main part thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in FIGS. 3 to 5, the rear seatback frame for a hybrid vehicle according to the present invention is reinforced by the concept of a hollow frame rather than the thickness concept of a steel used conventionally, And is a kind of hybrid concept seatback frame which is assembled together with a composite material, preferably a fiber reinforced thermoplastic resin, in a sufficiently reduced state.

However, in the present invention, the square steel structure 100 is attached to the back surface of the composite material frame 200, and is finished with the nonwoven fabric 300 to improve the appearance of the steel structure 100 .

In this case, a method of attaching the steel structure 100 to the composite material frame 200 may be various known methods such as a screw, a bolt / nut method, and the like.

The composite material of the composite frame 200 may be a short fiber reinforced thermoplastic resin (GMT), a long fiber reinforced thermoplastic resin (LFT), or a continuous fiber reinforced thermoplastic resin (CFRTPC).

In addition, the steel structure 100 must be realized as a round shape or a square shape instead of a plate shape in order to improve high strength characteristics and rigidity.
In particular, as shown in FIG. 3 to FIG. 5, it is formed as a mold for forming a kind of closed circuit so as to uniformly reinforce the grounded portion corresponding to the back surface of the composite material frame 200 as a whole.

In addition, the steel constituting the steel structure 100, that is, the high tensile strength steel sheet, uses a high tensile strength steel sheet having a tensile strength of 600-800 MPa and forms a circular or hollow prismatic structure by molding them.

Also, in the case of the present invention, a channel and a rib may be formed on the front surface of the composite frame 200.

Further, since the joining property is improved when the forming groove 210 is formed in the rear surface of the composite frame 200 so as to fit the steel structure 100, the joining property is increased.

The steel structure 100 is provided with a plurality of mechanisms for receiving the most force in the seat back frame such as the latch assembly 110 shown in FIG. 5, the center belt guide 120, the center hinge 130, (140) are installed only on the steel structure (100) unlike the conventional structure.

Therefore, since no force is applied to the composite frame 200, the contribution to the improvement of the strength characteristics and the rigidity characteristics is further increased.

In addition, the relatively weak structure, that is, the headrest assembly, the tether anchor assembly, and the armrest assembly, which are weak structures, may be mounted on the composite frame 200.

As described above, since the steel can be reinforced in the form of a hollow square or circular frame to realize a high strength, it is possible to separate and install the structures that are subjected to the force, It is possible to secure sufficient strength and rigidity characteristics.

In addition, since the steel structure 100 is fixed to the rear surface of the composite frame 200 rather than the front surface of the composite frame 200 by means of bolts and screws, it is possible to provide a high strength The required test has a very good resistance characteristic because it is firstly subjected to the force from the steel structure 100 and secondarily receives the force from the composite frame 200.

In other words, since the pulling force is concentrated on the steel structure 100, the steel structure 100 is inserted into the back surface of the composite frame 200, so that the steel structure 100 is pulled, The force is applied to the structure that is pulled together, and the pulling resistance is increased accordingly.

In addition, since the steel structure 100 is assembled on the back surface, it is also possible to prevent the steel structure 100 from being separated even under a strong force. That is, since the force is pulled forward or pushes from the rear side, the steel structure 100 always pushes the composite frame 200 at all times. Therefore, no matter how strong the force acts, the composite frame 200 and the steel structure The separation phenomenon of the semiconductor device 100 does not occur.

In addition, when the passenger seated on the passenger seat, the composite frame 200 has high elasticity due to the nature of the material, which may cause clogging. However, since the steel structure 100 is supported from the back, it prevents clogging and increases rigidity.

6, the rear seat back frame according to the present invention is bolted or screwed around the mounting groove 210 in a state where the steel structure 100 is inserted into the mounting groove 210, Since the structure 100 is finished with the nonwoven fabric 300, the appearance of the structure 100 can be enhanced.

Particularly, since the end of the nonwoven fabric 300 is inserted into the channel 220 of the composite frame 200, the finishing efficiency is improved.

100: steel structure 200: composite frame
210: Assembly groove 300: Nonwoven fabric

Claims (4)

In a rear seat back frame for a vehicle,
A composite frame having a channel formed on the front side; A steel structure fixedly attached to a rear surface of the composite frame; And a nonwoven fabric attached to the steel structure so as to cover and pack the steel structure,
The steel structure is formed by molding a high tensile strength steel sheet having a tensile strength of 600-800 MPa into a mold for forming a closed loop, and has a circular or hollow square shape in cross section;
A rim, which is an end of the nonwoven fabric, is inserted into the channel and finished;
Wherein the steel structure is bolted or screwed while being inserted into an assembly groove formed on a rear surface of the composite frame;
The steel structure is provided with a large force receiving structure including a latch assembly, a center belt guide, a center hinge portion, and a side hinge portion in a rear seatback frame; Wherein the composite material frame is provided with a structure receiving a relatively small force including a headrest assembly, a tether anchor assembly, and an armrest assembly. delete delete delete
KR1020150172287A 2015-12-04 2015-12-04 Hybrid type vehicle rear seat back frame KR101771011B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150172287A KR101771011B1 (en) 2015-12-04 2015-12-04 Hybrid type vehicle rear seat back frame

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Application Number Priority Date Filing Date Title
KR1020150172287A KR101771011B1 (en) 2015-12-04 2015-12-04 Hybrid type vehicle rear seat back frame

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KR20170065917A KR20170065917A (en) 2017-06-14
KR101771011B1 true KR101771011B1 (en) 2017-08-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101886294B1 (en) * 2017-11-21 2018-08-08 코오롱글로텍주식회사 Rear seat, rear seat back frame and manufcturing method thereof
WO2019098741A1 (en) * 2017-11-16 2019-05-23 (주)엘지하우시스 Vehicle seat back frame with fabric integrated therewith and manufacturing method therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102443799B1 (en) * 2019-04-16 2022-09-19 (주)엘엑스하우시스 Seatback and Car comprising the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008105593A (en) * 2006-10-26 2008-05-08 Nissan Motor Co Ltd Frame structure of vehicular seat back

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008105593A (en) * 2006-10-26 2008-05-08 Nissan Motor Co Ltd Frame structure of vehicular seat back

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019098741A1 (en) * 2017-11-16 2019-05-23 (주)엘지하우시스 Vehicle seat back frame with fabric integrated therewith and manufacturing method therefor
KR101886294B1 (en) * 2017-11-21 2018-08-08 코오롱글로텍주식회사 Rear seat, rear seat back frame and manufcturing method thereof

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