KR101769278B1 - Front side rear member - Google Patents

Front side rear member Download PDF

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Publication number
KR101769278B1
KR101769278B1 KR1020150181676A KR20150181676A KR101769278B1 KR 101769278 B1 KR101769278 B1 KR 101769278B1 KR 1020150181676 A KR1020150181676 A KR 1020150181676A KR 20150181676 A KR20150181676 A KR 20150181676A KR 101769278 B1 KR101769278 B1 KR 101769278B1
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KR
South Korea
Prior art keywords
front side
bolt fastening
outer panel
rear member
panel
Prior art date
Application number
KR1020150181676A
Other languages
Korean (ko)
Other versions
KR20170073132A (en
Inventor
하상진
이문용
Original Assignee
주식회사 성우하이텍
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 주식회사 성우하이텍 filed Critical 주식회사 성우하이텍
Priority to KR1020150181676A priority Critical patent/KR101769278B1/en
Publication of KR20170073132A publication Critical patent/KR20170073132A/en
Application granted granted Critical
Publication of KR101769278B1 publication Critical patent/KR101769278B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/242—Fillet welding, i.e. involving a weld of substantially triangular cross section joining two parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/02—Connections between superstructure or understructure sub-units rigid
    • B62D27/023—Assembly of structural joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0004—Frontal collision

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The front side rear member is started. The front side rear member according to an embodiment of the present invention is a front side rear member that is assembled with a side inner panel and a side outer panel to form a box shape and is respectively assembled to the rear of both front side members of the vehicle body, And the side outer panels are joined to each other with the tops of the upper and lower surfaces corresponding to each other being joined to each other, and the bolts are fastened to each other through the bolt fastening portions on one side.

Description

Front side rear member {FRONT SIDE REAR MEMBER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front side rear member, and more particularly, to a front side rear member that welds and bolts a side inner panel and a side outer panel to improve bonding strength.

BACKGROUND OF THE INVENTION [0002] Generally, a front side member assembly for a vehicle is formed on both side surfaces of an engine room in a longitudinal direction of a vehicle body, and is composed of a front side member disposed in front of the front side member and a front side rear member assembled in the rear of the front side member .

This front side member assembly absorbs the impact energy at the time of a frontal collision of the vehicle, thereby minimizing the deformation of the vehicle compartment, thereby reducing the impact of the passenger.

At this time, the front side rear member is composed of a side inner panel and a side outer panel.

That is, the front side rear member is formed by press-forming the side inner panel and the side outer panel, respectively, and welds the upper and lower surfaces of the side inner panel and the side outer panel to each other by welding.

However, in the conventional front side rear member, a separate bracket is applied in order to prevent the side inner panel and the side outer panel from spreading at the time of a collision, and the number and weight of components are increased as the bracket is applied.

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

An embodiment of the present invention is to provide a front side rear member which is welded to a side inner panel and a side outer panel and is bolted to one side through a bolt fastening portion to improve bonding strength.

In one or more embodiments of the present invention, a front side rear member, which is assembled with a side inner panel and a side outer panel to form a box shape and is respectively assembled to the rear of both front side members of the vehicle body, The outer panel may be provided with front side rear members to which the tops of the top and bottom surfaces corresponding to each other are bonded to each other and are bolted to each other through the bolt fastening part from one side.

The bolt fastening portion may include a bolt fastening end formed on one side of the inner surface of the side outer panel; And a bolt insertion end formed at one side of the side inner panel corresponding to the bolt fastening end, and fastening bolts are fastened to the bolt fastening end through the bolt insertion end.

The bolt fastening end may protrude from the inner surface of the side outer panel, and a screw tab may be formed on the inner circumferential surface.

In addition, the bolt insertion end is protruded from the inner surface of the side inner panel, and a through hole through which the fastening bolt is inserted may be formed.

In addition, the side inner panel and the side outer panel may be welded to each other so that the corresponding upper and lower surfaces overlap each other at a predetermined interval.

In addition, the side inner panel and the side outer panel may have a plurality of ribs formed on corresponding inner surfaces.

Further, the side inner panel and the side outer panel may be formed by aluminum die casting.

In the embodiment of the present invention, the upper ends of the upper and lower surfaces of the side inner panel and the side outer panel, which are assembled in a box shape, are welded together and bolted to each other through a bolt fastening portion, .

In addition, the embodiment of the present invention is characterized in that a bolt insertion end formed on one side of a side inner panel and a mechanical fastening by a plurality of bolt fastening portions fastened to the fastening bolt through a bolt fastening end formed on the side outer panel, The coupling rigidity of the member is increased and the collision performance is improved.

In addition, the effects obtainable or predicted by the embodiments of the present invention are directly or implicitly disclosed in the detailed description of the embodiments of the present invention. That is, various effects to be predicted according to the embodiment of the present invention will be disclosed in the detailed description to be described later.

1 is a perspective view of a front side rear member according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line AA in Fig.
3 is an assembled cross-sectional view of a front side rear member according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory of various embodiments for effectively illustrating the features of the present invention. Therefore, the present invention should not be limited to the following drawings and descriptions.

FIG. 1 is a perspective view of a front side rear member according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A of FIG. 1, and FIG. 3 is an assembled sectional view of a front side rear member according to an embodiment of the present invention.

1 and 2, the front side rear member 1 according to the embodiment of the present invention is assembled to the rear of the front side members 3 on both sides of the vehicle body.

At this time, the front side members 3 are engaged with the rear side of the bumper beam (not shown) arranged in the front vehicle width direction of the vehicle through the front side bracket 5.

The front side rear member 1 comprises a side inner panel 10 and a side outer panel 20 which are assembled together to form a box shape.

At this time, upper and lower surfaces 10a and 20a and lower surfaces 10b and 20b are formed on the side inner panel 10 and the side outer panel 20, respectively.

The front side rear member 1 is formed such that the upper face 10a and the lower face 10b of the side inner panel 10 are mutually associated with the upper face 20a and the lower face 20b of the side outer panel 20, Welded (W) in the overlapping state.

At this time, the side inner panel 10 and the side outer panel 20 may be joined by a fillet weld.

The fillet welding is a method in which welding beads are piled up and fixed along corners formed by overlapping the side inner panel 10 and the side outer panel 20. [

Further, the front side rear member 1 is bolted and coupled to one side through two bolt fastening portions 30.

The bolt fastening part 30 includes a bolt fastening end 21 and a bolt insertion end 11.

First, the bolt fastening end 21 is formed on one side of the inner surface of the side outer panel 20.

That is, the bolt fastening end 21 protrudes from the inner surface of the side outer panel 20, and a screw tab is formed on the inner circumferential surface.

The bolt insertion end 11 is formed at one side of the side inner panel 10 corresponding to the bolt fastening end 21.

That is, the bolt insertion end 11 protrudes from the inner surface of the side inner panel 10 and includes a through hole 13.

3, the bolt fastening portion 30 has a structure in which the fastening bolt 40 is fastened to the bolt fastening end 21 through the bolt insertion end 11.

At this time, the fastening bolt 40 is composed of a head part and a body part, the head part is supported by the bolt fastening end 21, and the body part is formed with screw tabs on the outer peripheral surface of the tip, .

The bolt fastening portion 30 can be formed at a portion where rigidity is required at the time of collision, thereby improving the collision rigidity.

The number of the bolt fastening portions 30 according to the embodiment of the present invention has been described as an example. However, the number of the bolt fastening portions 30 may be changed if necessary.

A plurality of ribs 31 are formed on the inner surface of the side inner panel 10 and the side outer panel 20, respectively.

The plurality of ribs 31 protrude from the inner surfaces of the side inner panel 10 and the side outer panel 20 to reinforce the rigidity together with the bolt fastening portions 30.

The side inner panel 10 and the side outer panel 20 are formed by aluminum die casting.

Therefore, the front side rear member 1 according to the embodiment of the present invention has the upper side surfaces 10a, 20a and the lower side surface 20a of the side inner panel 10 and the side outer panel 20, 10b, and 20b are welded (W) to each other, and at the same time, they are bolted to each other through bolt fastening portions 30 to improve the assembling strength.

The front side rear member 1 according to the embodiment of the present invention includes a bolt insertion end 11 formed at one side of the side inner panel 10 and a bolt fastening end 21 formed at the side outer panel 20 And a plurality of bolt fastening portions 30 for fastening the fastening bolts 40 through the fastening bolts 40. The fastening rigidity of the front side rear members can be increased to improve the crashworthiness.

Further, the front side rear member 1 is formed through aluminum die casting, and is lightweight, which is advantageous in mass production.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

1 ... front side rear member
3 ... Front Side Members
5 ... bracket
10 ... Side Inner Panel
10a ... side inner panel top surface
10b ... side inner panel
11 ... bolt insertion end
13 ... through hole
20 ... Side Outer Panel
20a ... Side Outer Panel Top
20b ... Side Outer Panel
21 ... bolt fastening end
30 ... bolt fastening portion
31 ... rib
40 ... fastening bolt

Claims (7)

A front side rear member, which is assembled with a side inner panel and a side outer panel so as to be box-shaped and respectively assembled to the rear of both front side members of the vehicle body,
The side inner panel and the side outer panel are formed by aluminum die casting and have a plurality of ribs formed on their inner surfaces corresponding to each other. The ends of the upper and lower surfaces corresponding to each other are overlapped with each other at a predetermined interval, A bolt fastening part formed on one side of the inner surface of the side outer panel and a bolt fastening part formed by a bolt fastening part formed on one side of the side inner panel corresponding to the bolt fastening end,
Wherein the bolt fastening end is protruded from the inner surface of the side outer panel, a screw tab is formed on the inner circumferential surface,
Wherein the bolt insertion end protrudes from the inner surface of the side inner panel and has a through hole through which the bolt is inserted. delete delete delete delete delete delete
KR1020150181676A 2015-12-18 2015-12-18 Front side rear member KR101769278B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150181676A KR101769278B1 (en) 2015-12-18 2015-12-18 Front side rear member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150181676A KR101769278B1 (en) 2015-12-18 2015-12-18 Front side rear member

Publications (2)

Publication Number Publication Date
KR20170073132A KR20170073132A (en) 2017-06-28
KR101769278B1 true KR101769278B1 (en) 2017-08-21

Family

ID=59280451

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150181676A KR101769278B1 (en) 2015-12-18 2015-12-18 Front side rear member

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KR (1) KR101769278B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004249807A (en) * 2003-02-19 2004-09-09 Toyota Motor Corp Skeleton structure of car body
KR101433357B1 (en) * 2013-04-25 2014-08-22 프로텍코리아 주식회사 Bumper crash Box and its manufacturing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004249807A (en) * 2003-02-19 2004-09-09 Toyota Motor Corp Skeleton structure of car body
KR101433357B1 (en) * 2013-04-25 2014-08-22 프로텍코리아 주식회사 Bumper crash Box and its manufacturing method

Also Published As

Publication number Publication date
KR20170073132A (en) 2017-06-28

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E701 Decision to grant or registration of patent right