KR101666423B1 - Seat back frame for a vehicle and and manufacturing method thereof - Google Patents
Seat back frame for a vehicle and and manufacturing method thereof Download PDFInfo
- Publication number
- KR101666423B1 KR101666423B1 KR1020150140905A KR20150140905A KR101666423B1 KR 101666423 B1 KR101666423 B1 KR 101666423B1 KR 1020150140905 A KR1020150140905 A KR 1020150140905A KR 20150140905 A KR20150140905 A KR 20150140905A KR 101666423 B1 KR101666423 B1 KR 101666423B1
- Authority
- KR
- South Korea
- Prior art keywords
- sub
- rib
- main
- reinforcing
- main portion
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 238000005304 joining Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
-
- 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
-
- 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
- B60N2/70—Upholstery springs ; Upholstery
- B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Manufacturing & Machinery (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a seat back frame for a vehicle having a sandwich structure in which a reinforcing portion of a steel material intervenes, and a method of manufacturing the same. The seat back frame for a vehicle according to one embodiment of the present invention is formed in a back sheet shape, A main portion of a plastic material formed by protruding a first rib; And a plurality of second ribs protruded to be in contact with the first ribs of the main portion and spaced apart from each other in a region facing the main portion, Wow; And a reinforcing portion which is interposed between the main portion and the sub portion and in which a plurality of holes through which the second rib of the sub portion passes are formed.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a seat back frame for a vehicle and a method of manufacturing the same, and more particularly, to a seat back frame for a vehicle having a sandwich structure in which a reinforcing portion of a steel material is interposed.
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.
Recently, as interest in automobile fuel consumption and environmental pollution has been raised, researches are underway to reduce the weight of automobiles in this regard. However, the reason why the weight of the seat is increasing day by day is that it is actively coping with the laws and regulations strengthened with the comfort of the customers and the demand for the convenience, which is a big obstacle to the lightening of the automobile.
Recently, the development of a plastic seat back frame has been continuing. For the reinforcement of strength in sheet back frames and general plastics using glass mat thermoplastics (GMT) or carbon fiber reinforced plastics (CFRT), which is an impact reinforcing synthetic resin, Steel reinforcement is being developed in a way that it is assembled by insert injection or additional parts (screw, nut, riveting, etc.).
However, when a composite material is applied, it is more lightweight than a conventional seat back frame made of steel, but it has a disadvantage in that the material cost is increased and the cost competitiveness is lowered.
In addition, when the method of insert injection of steel reinforcement is applied, the resin does not flow uniformly to the insert injection part, so that the moldability is lowered and the productivity is lowered. In addition, when the steel reinforcement is assembled by using additional parts, the thickness of the plastic for reinforcement of the rigidity of the plastic part of the assembly part becomes excessively thick, which lowers the formability and increases the number of parts.
The present invention relates to a seat back frame for a vehicle that can reinforce the rigidity of a seat back frame by improving the structure and method of rigidly bonding a reinforcement portion of a steel material to a main portion of a plastic material, And a manufacturing method thereof.
A vehicle seat back frame according to an embodiment of the present invention includes: a main body made of a plastic material, the main body being made of a back sheet and having a first rib protruded at a portion where rigidity is required to be reinforced; And a plurality of second ribs protruded to be in contact with the first ribs of the main portion and spaced apart from each other in a region facing the main portion, Wow; And a reinforcing portion which is interposed between the main portion and the sub portion and in which a plurality of holes through which the second rib of the sub portion passes are formed.
Wherein the second rib is divided into a support region extending in the sub-portion and disposed in the hole, and a junction region extending from the support region and exposed to the outside of the hole, wherein the junction region is in contact with the first rib of the main portion And is joined by friction.
And the cross-sectional area of the junction region in the second rib is formed larger than the cross-sectional area of the support region.
The sum of the volumes of the junction regions is preferably larger than the volume of the surface of the first ribs to cover the half thickness of the sub-section.
The reinforcing portion is a steel material.
According to another aspect of the present invention, there is provided a method of manufacturing a seat back frame for a vehicle, the method comprising: preparing a main portion in a back sheet form using a plastic material; Preparing a sub-part so as to have a plurality of second ribs protruded to be in contact with the main part, the sub-part being made of a plastic material so as to have a shape corresponding to a part where rigidity reinforcement of the main part is required; Preparing a reinforcing portion which is interposed between the main portion and the sub portion and in which a plurality of holes through which the second rib of the sub portion passes are prepared; Coupling the reinforcing portion to the sub-portion such that the hole formed in the reinforcing portion passes through the second rib of the sub-portion; The sub-part is brought into close contact with the main part such that the second rib penetrating through the reinforcing part is in close contact with the main part, and at least any one of the main part and the sub part is vibrated to cause friction between the second rib and the main part, And the contact surfaces of the main part and the main part are melted and joined to each other.
The reinforcing portion may be made of a steel material in the step of preparing the reinforcing portion.
And the main portion and the sub portion are joined by vibration by ultrasonic welding at the joining step.
According to the embodiment of the present invention, the reinforcing part of the steel material, which is provided for reinforcement of the stiffness of the main part, can be vibrated by using the sub-part of the plastic material so that the reinforcing effect according to the rigid interposition of the reinforcing part can be expected.
In addition, since the main part and the sub part are attached by vibration welding, a separate part for joining the components is not added, so that the lightening effect of the product can be expected.
1 is a view illustrating a seat back frame for a vehicle according to an embodiment of the present invention,
2 is a conceptual view showing a seat back frame for a vehicle according to an embodiment of the present invention,
3A to 3D are conceptual views showing a method of manufacturing a seat back frame for a vehicle according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Wherein like reference numerals refer to like elements throughout.
FIG. 1 is a view illustrating a seat back frame for a vehicle according to an embodiment of the present invention, and FIG. 2 is a conceptual view illustrating a seat back frame for a vehicle according to an embodiment of the present invention.
As shown in FIGS. 1 and 2, a seat back frame for a vehicle according to an embodiment of the present invention includes a
The
At this time, the shape of the
The
At this time, the
The
Therefore, a
The reinforcing
At this time, the reinforcing
Next, the relationship between the
The
It is preferable that the
When the
More preferably, the sum of the volumes of the
Next, a method of manufacturing a seat back frame for a vehicle according to an embodiment of the present invention will be described with reference to the drawings.
3A to 3D are conceptual views showing a method of manufacturing a seat back frame for a vehicle according to an embodiment of the present invention.
First, the
Here, the
When the preparation of the
3B, the reinforcing
In this state, the
At least one of the
At this time, the
When the
Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.
10: main part 11: first rib
20: sub part 21: rib
21a:
22: seat groove 23: fused joint
30: reinforcement portion 31: hole
Claims (8)
And a plurality of second ribs protruded to be in contact with the first ribs of the main portion and spaced apart from each other in a region facing the main portion are formed in a shape corresponding to a portion where rigidity reinforcement of the main portion is required, Wow;
And a reinforcing portion which is interposed between the main portion and the sub portion and in which a plurality of holes through which the second rib of the sub portion passes are formed,
Wherein the second rib is divided into a support region extending from the sub-portion and disposed in the hole, and a bonding region extending from the support region and exposed to the outside of the hole,
And the joining region is joined by friction with the first rib of the main portion.
Wherein the cross-sectional area of the joining region in the second rib is larger than the cross-sectional area of the support region.
Wherein a sum of the volumes of the joint regions is greater than a volume covering the surface of the first rib with a half thickness of the sub-thickness.
Wherein the reinforcing portion is a steel material.
Preparing a sub-part so as to have a plurality of second ribs protruded to be in contact with the main part, the sub-part being made of a plastic material so as to have a shape corresponding to a part where rigidity reinforcement of the main part is required;
Preparing a reinforcing portion which is interposed between the main portion and the sub portion and in which a plurality of holes through which the second rib of the sub portion passes are prepared;
Coupling the reinforcing portion to the sub-portion such that the hole formed in the reinforcing portion passes through the second rib of the sub-portion;
The sub-part is brought into close contact with the main part such that the second rib penetrating through the reinforcing part is in close contact with the main part, and at least any one of the main part and the sub part is vibrated to cause friction between the second rib and the main part, And the contact surfaces of the main portion and the main portion are melted and joined to each other.
Wherein the reinforcing portion is manufactured using steel material in the step of preparing the reinforcing portion.
Wherein the joining by the vibration of the main portion and the sub portion in the joining step is performed by ultrasonic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150140905A KR101666423B1 (en) | 2015-10-07 | 2015-10-07 | Seat back frame for a vehicle and and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150140905A KR101666423B1 (en) | 2015-10-07 | 2015-10-07 | Seat back frame for a vehicle and and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101666423B1 true KR101666423B1 (en) | 2016-10-17 |
Family
ID=57250135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150140905A KR101666423B1 (en) | 2015-10-07 | 2015-10-07 | Seat back frame for a vehicle and and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101666423B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210007307A (en) * | 2019-07-11 | 2021-01-20 | 한국항공우주산업 주식회사 | Sandwich type CFRP structure inserted with UHSS |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002113742A (en) * | 2000-06-15 | 2002-04-16 | Bayer Ag | Laminated plastic/metal member and method for manufacturing the same |
| KR20090029950A (en) * | 2007-09-19 | 2009-03-24 | 한라공조주식회사 | Bumper beam and manufacturing method thereof for a vehicle |
| KR20100097776A (en) | 2009-02-27 | 2010-09-06 | (주)엘지하우시스 | Seat back frame for vehicles |
| KR20120037108A (en) * | 2010-10-11 | 2012-04-19 | 한화엘앤씨 주식회사 | Plastic seat back frame enhanced vibration welding ability of multi layer type seat back |
| KR20140125577A (en) * | 2013-04-19 | 2014-10-29 | 주식회사다스 | Seat-back frame for vehicle and manufacturing method thereof |
-
2015
- 2015-10-07 KR KR1020150140905A patent/KR101666423B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002113742A (en) * | 2000-06-15 | 2002-04-16 | Bayer Ag | Laminated plastic/metal member and method for manufacturing the same |
| KR20090029950A (en) * | 2007-09-19 | 2009-03-24 | 한라공조주식회사 | Bumper beam and manufacturing method thereof for a vehicle |
| KR20100097776A (en) | 2009-02-27 | 2010-09-06 | (주)엘지하우시스 | Seat back frame for vehicles |
| KR20120037108A (en) * | 2010-10-11 | 2012-04-19 | 한화엘앤씨 주식회사 | Plastic seat back frame enhanced vibration welding ability of multi layer type seat back |
| KR20140125577A (en) * | 2013-04-19 | 2014-10-29 | 주식회사다스 | Seat-back frame for vehicle and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210007307A (en) * | 2019-07-11 | 2021-01-20 | 한국항공우주산업 주식회사 | Sandwich type CFRP structure inserted with UHSS |
| KR102240927B1 (en) * | 2019-07-11 | 2021-04-14 | 한국항공우주산업 주식회사 | Sandwich type CFRP structure inserted with UHSS |
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| FPAY | Annual fee payment |
Payment date: 20191001 Year of fee payment: 4 |