CN1706687A - Seat back frame and method of manufacturing the same - Google Patents

Seat back frame and method of manufacturing the same Download PDF

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Publication number
CN1706687A
CN1706687A CNA2004101036384A CN200410103638A CN1706687A CN 1706687 A CN1706687 A CN 1706687A CN A2004101036384 A CNA2004101036384 A CN A2004101036384A CN 200410103638 A CN200410103638 A CN 200410103638A CN 1706687 A CN1706687 A CN 1706687A
Authority
CN
China
Prior art keywords
back frame
magnesium alloy
vehicle back
less
crust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2004101036384A
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Chinese (zh)
Inventor
金载中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co filed Critical Hyundai Motor Co
Publication of CN1706687A publication Critical patent/CN1706687A/en
Pending legal-status Critical Current

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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
    • B60N2/64—Back-rests or cushions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • 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
    • B60N2/68—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

A seat back frame of a vehicle using a magnesium alloy results in a seat back frame having the properties of a conventional steel press seat back frame. The seat back frame is reinforced regarding its strength and tapers from wider at the lower portion to thinner toward a head rest. The advantageous properties of the alloy seat, such as weight and castability, are much improved over the conventional. The method of molding such a seat back frame include molding the alloy into a mold via even disbursement about a casting gate.

Description

Back frame and manufacture method thereof
The cross reference of related application
The application based on and require the korean application submitted on June 7th, 2004 number for the korean application of 10-2004-0041231 as preceence, quote its disclosure as a reference at this.
Technical field
Present invention relates in general to a kind of back frame of vehicle, relate more specifically to a kind of back frame and manufacture method of making by magnesium alloy thereof.
Background technology
In recent years, it is more and more luxurious that automobile becomes, traffic law and the legislative control on safety that need observe increase day by day, the automobile owner has also increased for the care of convenience, and seat has the trend that weight increases, so as a kind of method that reduces seat-weight, people have brought into use light material to replace steel to make back frame.
More particularly, when making back frame by magnesium alloy, by high-pressure casting, whole framework can be made into integration, and has therefore reduced procedure of processing; Thereby maker can compensate the use more expensive productive costs that light material increased relatively.And,, can carry out repetition Quantity production by using high pressure casting; Simultaneously because the size particularity of assembly has obviously reduced noise.Yet the physical property of magnesium alloy is poorer than the physical property of steel, therefore should consider the problems referred to above when carrying out this " concept design ".
Particularly, the global shape of back frame can influence its mechanical strength, thus flank spare can be inserted in the framework adjusting its intensity, and can integrally formed support be used for installation accessories.Consider that once more magnesium alloy compares relatively poor physical property with steel, should carry out in advance " concept design ".In addition, when from casting viewpoint consideration procedure of processing, also can design the more excellent structure of a kind of performance ratio steel product.
And when using the magnesium alloy cast back frame, the magnesium alloy finished product step of making 2.0 less millimeters thick of thickness is the strictest step.Maker's reason that its processing technology molten metal stream of time period and pouring gate installation site (for example according to) is holded in close confidence why that Here it is.
Summary of the invention
The vehicle back frame is made by magnesium alloy according to an embodiment of the invention, and the magnesium alloy back frame has strengthened mechanical strength by being provided with the reinforcement with U-shaped cross section.This U-shaped cross section forms as one, and across in the framework front side and the left and right sides that cover back frame, the front side of framework is provided with the banded reinforcement of one.Like this, seat can selectively be installed two kinds of dissimilar separable headrests, and is convenient to install simply new product.
The invention provides a kind of method of making the magnesium alloy back frame.Center at mold is provided with pouring gate, makes that molten metal can scatter to all directions in die casting, and flows in the mold to realize high-pressure casting.
Description of drawings
In order better to understand the present invention above-mentioned and other purpose and characteristics, below in conjunction with accompanying drawing above-mentioned and other embodiment of the present invention is elaborated, wherein:
Figure 1A is the front view of the vehicle back frame made by magnesium alloy according to one embodiment of the invention;
Figure 1B is the back view of the vehicle back frame made by magnesium alloy according to one embodiment of the invention;
Fig. 2 is the front view of the vehicle back frame part of being made by magnesium alloy according to one embodiment of the invention, and reinforcement has been installed on it;
Fig. 3 is the fragmentary, perspective view of the vehicle back frame made by magnesium alloy according to one embodiment of the invention, wherein is provided with hog frame in the left and right sides of framework cover;
Fig. 4 is an active head restraint device guiding perspective views of supports according, and this guiding trestle is suitable for being installed in according to an embodiment of the invention on the vehicle back frame of being made by magnesium alloy;
Fig. 5 is non-active head restraint device guiding perspective views of supports according, and this guiding trestle is suitable for being installed in according to an embodiment of the invention on the vehicle back frame of being made by magnesium alloy;
Fig. 6 is mounted in according to an embodiment of the invention the front view of the active head restraint support on the vehicle back frame of being made by magnesium alloy;
Fig. 7 is the section drawing along A-A line among Fig. 6; With
Fig. 8 is when the vehicle back frame that casting is made by magnesium alloy according to one embodiment of the invention, according to the transparent view of the flow of molten metal of time period and pouring gate position.
The specific embodiment
Figure 1A, Figure 1B and shown in Figure 2 be to make according to the described vehicle back frame of one embodiment of the invention by magnesium alloy.It is integrally formed and across in the front side and the left and right sides of framework cover 10 to have the hog frame 11 in U-shaped cross section, and well-known, this part is relatively more fragile for concentrated stress.The framework front side is integrally formed with banded reinforcement 12, and reinforcement 12 has this structure, and promptly the seat reclining zone is the thickest and the wideest, towards then attenuation and narrowing down of headrest area.
With reference to Figure 1A, Figure 1B and Fig. 2, comprise respectively by Fig. 4 and rail brackets 13 and 14 shown in Figure 5 that according to the described vehicle back frame of making by magnesium alloy of another embodiment of the present invention the guiding headrest is installed on the framework cover 10.And separable supporting structure is fixed in the assembly opening 15 of framework cover by assembling device.Assembly opening 15 equally spaced stretches out forward, makes nut just can not stretch from the rear surface of framework cover 10.
In another embodiment as shown in Figure 8, pouring gate 25 is arranged on the center of mold 20, and in the casting process of die casting, molten metal is to scattering everywhere and flowing in the mold like this.Preferably, molten metal speed with the 4.5-5.5 meter per second under the effective pressure of 500-700 crust flows in the mold, wherein is arranged on the 150-250 millimeter for reaching the distance that above-mentioned flow rate piston moves.
Below with reference to accompanying drawing the present invention is further described.
With reference to Figure 1A, Figure 1B, Fig. 2 and Fig. 3, the vehicle back frame is to make in the high-pressure casting program by magnesium alloy.The structure inferior position (for example mechanical strength of with steel comparing etc.) of magnesium alloy aspect physical property will compensate by the variation of its shape.In addition, also provide setting device and and the position of improving its pouring gate 25 by rheological analysis.That is to say that comparing greatly that the physical property of using the vehicle back frame that magnesium alloy makes and steel are made strengthened, particularly its mechanical strength; And kept the inherent characteristic of its light weight simultaneously.
As Figure 1-3, vehicle back frame of the present invention is one-body molded by casting method, plate wherein, and pipe and bar etc. is combined.That is to say,, provide the hog frame 11 that has the U-shaped cross section, be integrally formed and across the front side and the left and right sides at framework cover 10 for the intensity that obtains to expect.The framework front side is integrally formed with banded reinforcement 12, and reinforcement 12 has this structure, and promptly the seat reclining zone is the thickest and the wideest at lower area, towards then attenuation and narrowing down of headrest area.
The present invention is provided with stiffening device, and for example hog frame 11 and reinforcement 12 overcome the zone that stress loads, the just the easiest as everyone knows part that is subjected to outside concentrated stress (for example collision etc.).In this case, in the moment experiment, the preferred implementation of the vehicle back frame that magnesium alloy of the present invention is made is greater than 450kgf.m, and the maxim of steel back frame is 345kgf.m.
General, the vehicle back frame is provided with head and the neck of headrest with the protection passenger, usually have two kinds of dissimilar headrests: a) active head restraint: when vehicle collision thereby chair back taking place be pushed, this head rest device can move forward along definitive orbit by the suspension that is arranged in the back frame, and protection passenger's head and neck; And b) non-active head restraint device: it can provide identical functions, and just it is fixed.
In the present invention, be not to use the single-piece support, can select any headrest and it is installed in separation type support on the framework cover 10 but it is changed into, thereby more be applicable to new product, removed welding step simultaneously, therefore reduced manufacturing cost.
With reference to figure 4 and Fig. 5, they are active head restraint device and non-active head restraint device guiding perspective views of supports according, and it is suitable for being installed on the back frame of the present invention.Guiding trestle 13 and 14 is fixed on the back frame by assembling devices such as for example bolts.The guiding trestle 13 of active head restraint device as shown in Figure 4 is the support that the boot activity head rest device moves along definitive orbit.Support 13 has simple structure, because it normally is not subjected to big external force.And 13 of guiding trestles have three fixed orifices 16, and it can be installed on the framework cover 10, and adopt minimized weight in design.
As shown in Figure 5, the guiding trestle 14 of non-active head restraint device has five mounting holes 16 that are used for framework cover 10, so just can bear the external force bigger than the power that imposes on guiding trestle 13.When mounting hole 16 is fixed corresponding guiding trestle, can be with they overlapping uses.
With reference to screw assembly opening 15, its section drawing as shown in Figure 7, screw uniformly-spaced stretches out forward on the rear surface of framework cover 10, the problem that therefore will occur in assembling minimizes.So the vehicle back frame of being made by magnesium alloy according to the present invention can obtain to have identical physical property with the product that uses traditional steel to make, the characteristics of intrinsic light weight have been kept simultaneously.Simultaneously, the manufacturing step of vehicle seat cushion is the strictest, has reflected the optimum level of Known designs.Especially, the optimization of foundry technique is one of important step of the present invention.When making the magnesium alloy back frame, under the optimal conditions of pouring gate 25, can carry out coagulation step fast.So casting should use high speed die casting technology to carry out, therefore select a position the most appropriate that pouring gate 25 is set and be very important by rheological analysis.Just, when the molten metal green phase when complicated passage injects when having certain zone of finite space, according to the pouring gate 25 position differences of introducing the deposite metal, the mode of injection also can be greatly different, can obtain preferred embodiment based on various change in location.
Fig. 8 is illustrated in casting during back frame, according to flowing of the deposite metal of time period and pouring gate position.As shown in Figure 8, in the step of casting vehicle back frame, molten metal flows into adjacent domain and then fills up this zone equably.When pouring gate 25 was arranged on the mold center, molten metal began to scatter to all directions, so at first filled up the part that leans on connecting frame cover 10 and the cushion rack, and its bottom is filled up the left and right sides then, fills up the top at last.That is to say, be not to concentrate on the middle part, and molten metal at first fills up the most contiguous part, thereby reduced the generation of foundry defect.Based on this viewpoint, the left and right sides can be used as main chair back support section, and like this, molten metal is injected into the time of mold and compares obvious the minimizing with traditional time, so but be suitable for using the magnesium alloy materials of rapid solidification.When using above-mentioned foundry technique to carry out magnesium alloy cast, preferred, molten metal passes through pouring gate 20 with the rate of injection of 4.0-5.0 meter per second, and preferred speed is 5.0 meter per seconds, and effective pressure is the 500-700 crust, and preferred effective pressure is 600 crust.For reaching above-mentioned input speed, the distance that piston moves is the 150-250 millimeter preferably, more preferably 200 millimeters.At this, preferred condition of molding of the present invention is the result who obtains by a large amount of experiments that change various conditions of molding.
So, in the casting process that molten metal is mixed, can prevent owing to the foundry defect that has the in-to-in bubble in the mold or exist molten metal hot-fluid (hot flow) to cause, thereby can high-caliber casting vehicle back frame.
Though the present invention has been described in detail by the reference previous embodiment; but will be appreciated that those of ordinary skill in the art is after analyzing the application's disclosure; without departing from the spirit and scope of the present invention; the improvement and the variation that can also have other, these improvement and variation all belong in the protection domain of claim of the present invention.

Claims (6)

1, a kind of vehicle back frame of being made by magnesium alloy comprises:
Have the hog frame with U-shaped cross section, its formation is as a whole, and across in the front side and the left and right sides of framework cover, this position is easy to be subjected to concentrated stress; And
The front side of its middle frame cover is provided with integrally formed banded reinforcement.
2, the vehicle back frame of being made by magnesium alloy as claimed in claim 1, the structure of wherein said reinforcement be, leaning to the zone is being the thickest and the wideest bottom, begins attenuation and narrow down towards headrest area.
3, the vehicle back frame of being made by magnesium alloy as claimed in claim 1 comprises that also guiding headrest is installed to the guiding trestle on the described framework cover, has on it by assembling device to be fixed on detachable holder structure on the assembly opening of described framework cover.
4, the vehicle back frame of being made by magnesium alloy as claimed in claim 3, wherein assembly opening uniformly-spaced stretches out forward, makes screw can not stretch from the rear surface of described framework cover.
5, a kind of manufacture method of the vehicle back frame of being made by magnesium alloy comprises:
By die casting molten metal is cast in the pouring gate that is arranged on the mold center, makes that molten metal can be to scattering and flowing in the described mold everywhere;
Wherein said molten metal is to be no less than about 4.5 meter per seconds and to be not more than the speed of about 5.5 meter per seconds, be not less than about 500 crust and be not higher than under the effective pressure of 700 crust, flow in the described mold, and wherein for reaching above-mentioned flow rate, the distance setting that piston moves is for being no less than about 150 millimeters and no more than about 250 millimeters.
6, a kind of manufacture method of the vehicle back frame of being made by magnesium alloy comprises:
Metal is injected in the pouring gate that is arranged on back frame mold center basically, makes metal to disperseing to flow in the described mold everywhere;
Wherein said metal to be being not less than about 4.5 meter per seconds and not being higher than the speed of about 5.5 meter per seconds, and flows in the described mold being not less than about 500 crust and not being higher than under the effective pressures of about 700 crust.
CNA2004101036384A 2004-06-07 2004-12-29 Seat back frame and method of manufacturing the same Pending CN1706687A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040041231 2004-06-07
KR1020040041231A KR100590947B1 (en) 2004-06-07 2004-06-07 Magnesium back frame for automotive-seat system and its manufacturing method

Publications (1)

Publication Number Publication Date
CN1706687A true CN1706687A (en) 2005-12-14

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CNA2004101036384A Pending CN1706687A (en) 2004-06-07 2004-12-29 Seat back frame and method of manufacturing the same

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US (1) US20050269856A1 (en)
JP (1) JP2005350048A (en)
KR (1) KR100590947B1 (en)
CN (1) CN1706687A (en)
DE (1) DE102004062946A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102869538A (en) * 2010-02-19 2013-01-09 江森自控科技公司 One-piece seat back structure
CN101563254B (en) * 2006-11-07 2013-04-03 约翰逊控制器有限责任公司 Backrest with headrest sleeve for attaching a component
CN101565007B (en) * 2008-04-21 2013-05-08 现代自动车株式会社 Reinforcement for rear seat backs
CN101722880B (en) * 2008-10-20 2013-07-03 日本发条株式会社 Seat back frame structure of seat for vehicle and seat for vehicle with seat back frame structure
CN101468619B (en) * 2007-12-18 2013-09-18 现代自动车株式会社 Seatback frame structure for vehicles
CN103328258A (en) * 2011-01-14 2013-09-25 约翰逊控制技术公司 One-piece seat back frame and method of manufacturing
CN103328257A (en) * 2010-12-21 2013-09-25 约翰逊控制技术公司 One piece back frame with an integrated back panel
CN103496334A (en) * 2009-03-02 2014-01-08 巴斯夫欧洲公司 Seat back including integrated backrest and reinforcing composite layer
CN101641238B (en) * 2007-03-21 2014-07-09 约翰逊控制器有限责任公司 Assembly method for forming a seating structure of a vehicle seat, and seating structure
CN104670059A (en) * 2013-11-27 2015-06-03 乐天化学株式会社 Hybrid seat frame for vehicle
CN103260944B (en) * 2010-12-28 2015-12-16 Posco公司 Car seat structure
CN110329295A (en) * 2019-07-11 2019-10-15 苏州标图高级座椅有限公司 A kind of preparation method of integrated seat

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US20110210596A1 (en) * 2008-10-16 2011-09-01 Johnson Cintrols Technology Company One-piece seat structure and cold forming processes to create seat structures
DE102008052062A1 (en) 2008-10-17 2010-04-22 Dr.Ing.H.C.F.Porsche Aktiengesellschaft Method for producing a frame-like structural component
CN102481055B (en) * 2009-07-27 2015-07-29 江森自控科技公司 Monomer armchair structure and forming method
WO2011060219A1 (en) * 2009-11-12 2011-05-19 Johnson Controls Technology Company One-piece seat back frame assembly and method of making same
KR101162117B1 (en) 2010-06-01 2012-07-04 재단법인 전주기계탄소기술원 Magnesium seat back frame
US8590966B2 (en) * 2011-08-11 2013-11-26 Ford Global Technologies, Llc Non-newtonian stress thickening fluid vibration damper system for vehicle seat
KR101335596B1 (en) 2011-08-16 2013-12-02 재단법인 한국탄소융합기술원 Magnesium seat-back frame processing and assembling apparatus
JP6468070B2 (en) * 2015-05-22 2019-02-13 トヨタ紡織株式会社 Vehicle seat
JP2018043669A (en) * 2016-09-15 2018-03-22 トヨタ紡織株式会社 Vehicle seat
KR102284175B1 (en) 2019-12-20 2021-07-30 광우알엔에이 주식회사 Seat back frame for a vehicle and manufacturing method thereof
KR20220076847A (en) 2020-12-01 2022-06-08 광명산업(주) Vehicle seat back frame with composite material applied
CN113154963A (en) * 2021-05-25 2021-07-23 陕西鸿泰元和镁业有限公司 Magnesium alloy gun ammunition box and manufacturing method thereof

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101563254B (en) * 2006-11-07 2013-04-03 约翰逊控制器有限责任公司 Backrest with headrest sleeve for attaching a component
CN101641238B (en) * 2007-03-21 2014-07-09 约翰逊控制器有限责任公司 Assembly method for forming a seating structure of a vehicle seat, and seating structure
CN101468619B (en) * 2007-12-18 2013-09-18 现代自动车株式会社 Seatback frame structure for vehicles
CN101565007B (en) * 2008-04-21 2013-05-08 现代自动车株式会社 Reinforcement for rear seat backs
CN101722880B (en) * 2008-10-20 2013-07-03 日本发条株式会社 Seat back frame structure of seat for vehicle and seat for vehicle with seat back frame structure
CN103496334A (en) * 2009-03-02 2014-01-08 巴斯夫欧洲公司 Seat back including integrated backrest and reinforcing composite layer
US9045068B2 (en) 2010-02-19 2015-06-02 Johnson Controls Technology Company One-piece seat back structure
CN102869538A (en) * 2010-02-19 2013-01-09 江森自控科技公司 One-piece seat back structure
CN103328257A (en) * 2010-12-21 2013-09-25 约翰逊控制技术公司 One piece back frame with an integrated back panel
CN103260944B (en) * 2010-12-28 2015-12-16 Posco公司 Car seat structure
CN103328258A (en) * 2011-01-14 2013-09-25 约翰逊控制技术公司 One-piece seat back frame and method of manufacturing
CN104670059A (en) * 2013-11-27 2015-06-03 乐天化学株式会社 Hybrid seat frame for vehicle
CN110329295A (en) * 2019-07-11 2019-10-15 苏州标图高级座椅有限公司 A kind of preparation method of integrated seat

Also Published As

Publication number Publication date
KR100590947B1 (en) 2006-06-19
DE102004062946A1 (en) 2005-12-29
JP2005350048A (en) 2005-12-22
KR20050116183A (en) 2005-12-12
US20050269856A1 (en) 2005-12-08
DE102004062946A8 (en) 2006-04-06

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