Bumper of vehicle

Abstract

A bumper of a vehicle according to one embodiment of the present invention includes a bumper cover having a plurality of fastening members having hook portions formed spaced apart along the longitudinal direction and fastening holes formed through the hook portions, and a skid plate having an insertion member that passes through the fastening holes of the fastening members and is snap-fit ​​fastened to the hook portions. Here, the insertion member includes a first insertion part having a hook hole into which a hook portion is forcibly fitted when penetrating a fastening hole, and a second insertion part extending from the first insertion part and having a side hole around the hook hole of the first insertion part.

Description

Technology Field

[0001] The present invention relates to a bumper of a vehicle, and more specifically to a skid fastening structure. Background Technology

[0002] A vehicle bumper is a device installed to protect the front and rear of the vehicle body, and it functions to absorb the impact when the vehicle collides.

[0003] The skid plate located at the bottom of this bumper is connected to the bumper cover to protect the underside of the vehicle body, and the connection structure between the bumper cover and the skid plate forms a hook shape in the form of an injection-molded part.

[0004] Conventional hook shapes are classified into various types depending on their form, and they all commonly require a minimum amount of vertical space for assembly.

[0005] However, conventional hook injection molded structures cannot be applied when the mold angle of the bumper cover changes as part of the vehicle body design, as the vertical space of the design structure must be sufficiently secured for assembly; therefore, a structural alternative is currently required. The problem to be solved

[0006] The present invention is proposed to solve the aforementioned problems and aims to provide a vehicle bumper that can be applied even in a structure where the upper and lower space is narrow, depending on the change in the mold angle of the bumper cover as part of the vehicle body design.

[0007] The problems that the present invention aims to solve are not limited to those mentioned above, and other problems not mentioned herein will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0008] A bumper of a vehicle according to one embodiment of the present invention includes: a bumper cover comprising a plurality of fastening members having hook portions formed at intervals along the longitudinal direction and forming an exterior, and fastening holes formed through the hook portions; and a skid plate having an insertion member that passes through the fastening holes of the fastening members and is snap-fit ​​fastened to the hook portions.

[0009] The insertion member includes a first insertion part having a hook hole into which a hook portion is forcibly fitted when penetrating a fastening hole, and a second insertion part extending from the first insertion part and having a side hole around the hook hole of the first insertion part.

[0010] The hook portion may have a downwardly inclined surface at the end that contacts the insertion member when the insertion member penetrates the fastening hole of the fastening member.

[0011] The hook portion may have a curved surface on the cross-section that contacts the insertion member when the insertion member penetrates the fastening hole of the fastening member, which guides the entry path of the insertion member.

[0012] When the hook portion is inserted by engaging with the hook hole of the first insertion portion, the contact end may be joined to the inner surface of the hook hole in an uneven structure.

[0013] When the hook portion is inserted by engaging with the hook hole of the first insertion portion, a plurality of assembly grooves may be provided at the contact end that contacts the inner surface of the hook hole.

[0014] Here, the inner surface of the hook hole may be provided with an assembly projection corresponding to the assembly groove.

[0015] The fastening member is spaced apart from the bottom of the hook portion and includes a fixing jaw that protrudes a predetermined height in front of the fastening hole to secure an insertion member penetrating the fastening hole.

[0016] Here, it is preferable that the fixing jaw secures the insertion member by having a portion of it inserted into the lower end of the hook hole of the first insertion part and engaging with it.

[0017] As another embodiment of the present invention, a bumper of a vehicle having a fastening structure between a bumper cover and a skid plate, wherein the skid fastening entry portion is injected at a predetermined mold angle, may include: a fastening member having a hook portion formed in the skid fastening entry portion of the bumper cover and having a plurality of protrusions along the longitudinal direction on an inner inclined surface, and a fastening hole formed through the hook portion; and an insertion member having a hook hole positioned at the end of the skid fastening entry portion of the skid plate, which primarily penetrates the fastening hole of the fastening member and secondarily fastens to the hook portion.

[0018] Here, the hook portion may have a curved surface on the cross-section that contacts the insertion member when the insertion member penetrates the fastening hole of the fastening member, which guides the entry path of the insertion member.

[0019] The skid fastening entry portion of the fastening member may have a predetermined step structure with an upper portion formed with a hook portion and a lower portion forming the bottom surface, with a fastening hole in between.

[0020] The height difference between the hook portion and the lower portion may be relatively larger than the height of the entry end of the insertion member.

[0021] The entry end of the insert member that is skid-fastened to the fastening member is formed with a structure that slopes downward toward the end. Effects of the invention

[0022] According to the present invention, as part of the vehicle body design, a hook structure can be provided that can be applied to the fastening structure between the bumper cover and the skid plate even in a structure where the upper and lower space is narrow due to changes in the mold angle of the bumper cover.

[0023] Accordingly, the present invention can contribute to promoting diversity in vehicle body design by resolving existing structural constraints. Brief explanation of the drawing

[0024] FIG. 1 is a schematic diagram illustrating a skid fastening structure of a bumper according to one embodiment of the present invention. FIG. 2 is an enlarged view of part A of FIG. 1. FIG. 3 is an enlarged view of section B of FIG. 1. FIG. 4 is a drawing showing the fastening member of a bumper cover and the insertion member of a skid plate being mutually fastened according to one embodiment of the present invention. FIG. 5 is a drawing showing the CC' cross-section of FIG. 4. FIG. 6 is an enlarged view of section D of FIG. 5. FIG. 7 is a drawing exemplarily illustrating the assembly relationship between a fastening member of a bumper cover and an insertion member of a skid plate according to one embodiment of the present invention. Specific details for implementing the invention

[0025] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined by the claims. Meanwhile, the terms used in this specification are for describing the embodiments and are not intended to limit the present invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. The terms "comprises" or "comprising" as used in this specification do not exclude the presence or addition of one or more other components, steps, actions, and / or elements other than those mentioned.

[0026] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0027] Basic configuration

[0028] FIG. 1 is a schematic diagram illustrating a skid fastening structure of a bumper according to one embodiment of the present invention, FIG. 2 is an enlarged view of part A of FIG. 1, and FIG. 3 is an enlarged view of part B of FIG. 1.

[0029] Referring to FIGS. 1 to 3 in parallel, a bumper (10) of a vehicle according to one embodiment of the present invention includes a bumper cover (100) and a skid plate (200).

[0030] The bumper (10) that protects the vehicle body basically has a structure in which the bumper cover (100) and the skid plate (200) are connected. At this time, the bumper cover (100) and the skid plate (200) may be structured to be fixed to each other through a snap-fit ​​connection before being firmly installed through mutual bolting.

[0031] The bumper cover (100) includes a plurality of fastening members (110) formed at intervals along the length direction of the body. Here, the fastening members (110) include a hook portion (111), a fastening hole (112), and a fixing jaw (113), as shown in FIG. 2.

[0032] The hook portion (111) is formed on the inner circumference surface of the fastening hole (112).

[0033] The hook portion (111) is formed on the inner circumferential surface of the fastening hole (112) and has a hook structure that protrudes forward by being bent. Auxiliary hook portions (114) protrude downward at both ends of the hook portion (111) in a spaced-apart manner.

[0034] The fastening hole (112) is formed through the periphery of the hook portion (111) and is the part into which the mounting portion (insertion member; 210) of the skid plate (200) is inserted.

[0035] The fixed jaw (113) is positioned spaced apart from the bottom of the hook portion (111) and protrudes to a predetermined height in front of the fastening hole (112) to secure the skid plate (200).

[0036] The skid plate (200) includes an insertion member (210) that passes through the fastening hole (112) of the fastening member (110) and is snap-fit ​​connected to the hook portion (111).

[0037] The insertion member (210) includes a first insertion part (211) and a second insertion part (212).

[0038] The first insertion part (211) has a hook hole (211a) into which the hook part (111) is forcibly fitted when the insertion member (210) of the skid plate (200) passes through the fastening hole (112) of the fastening member (110) located on the bumper cover (100) during the process of assembling the skid plate (200) with the bumper cover (100).

[0039] The second insertion part (212) is formed extending from the first insertion part (211) and has a side hole (212a) around the hook hole (211a) of the first insertion part (211). The side hole (212a) is formed in a semicircular shape, spaced apart from the hook hole (211a) starting from the hook hole (211a).

[0040] Dimension information (example)

[0041] The bumper (10) of the vehicle according to the present invention has structural features that allow it to be applied even in a structure where the upper and lower space is narrow, depending on the change in the mold angle of the bumper cover (100) as part of various designs of the vehicle body design.

[0042] As a specific example, looking at the dimensions of each component of the fastening member (100) of the bumper cover (100 in FIG. 1) illustrated in FIG. 2, the lateral length (L1) of the hook portion (111) is 11 mm, and the lateral length (L2) between the auxiliary hook portions (114) located at both ends of the hook portion (111) with the hook portion (111) in between may be 31 mm. At this time, the height (longitudinal length; h1) between the lower surface of the auxiliary hook portion (114) and the upper surface of the fixing jaw (113) may be 2.7 mm, and the height (h2) between the point where the auxiliary hook portion (114) protrudes (the upper ends of both sides of the fastening member) and the upper surface of the fixing jaw (113) may be 4.2 mm. Here, the height of the fixing jaw (113) may be 1 mm.

[0043] Meanwhile, as another specific example, looking at the specific dimensions of each component of the insertion member (210) of the skid plate (200 in FIG. 1) shown in FIG. 3, the transverse length (L1') of the hook hole (211a) may be 10 mm, and the longitudinal length (w1; width) of the hook hole (211a) may be 3.6 mm. The transverse length (L2'; length of the space between the semicircular side holes (212a)) of the first insertion part (211) may be 24 mm, and the longitudinal length (w3; width) of the first insertion part (211) may be 9.6 mm. The transverse length (L3') of the second insertion part (212) may be 50 mm, and the longitudinal length (w4; width) of the second insertion part (212) may be 19 mm. Here, the width (w2) of the side hole (212a) may be 2.4 mm.

[0044] With reference to FIGS. 2 and 3, the dimensional information of the aforementioned fastening member (110) and insertion member (210) is an exemplary representation of the numerical values ​​during the process of mutual fastening, and the present invention is not limited to these dimensions. However, since the dimensional ratio between each component according to the dimensions is correlated, the corresponding dimensional information according to the ratio is meaningful.

[0045] Assembly (fastening) relationship between components

[0046] FIG. 4 is a drawing showing the fastening member of a bumper cover and the insertion member of a skid plate being mutually fastened according to one embodiment of the present invention, FIG. 5 is a drawing showing the CC' cross-section of FIG. 4, FIG. 6 is a drawing showing an enlarged view of part D of FIG. 5, and FIG. 7 is a drawing exemplarily showing the assembly relationship between the fastening member of a bumper cover and the insertion member of a skid plate according to one embodiment of the present invention.

[0047] Referring to FIGS. 4 to 7, the fastening member (110) of the bumper cover (100) and the insertion member (210) of the skid plate (200) have a guide-type skid fastening structure that is snap-fitted to each other.

[0048] As shown in FIGS. 5 and 7, the insertion member (210) is fixed by penetrating the fastening hole (112) of the fastening member (110) according to the assembly direction and interlocking with each other.

[0049] At this time, the hook portion (111) may have a downwardly inclined surface (111b) on the cross-section that contacts the insertion member (210).

[0050] Additionally, the hook portion (111) may have a curved surface that guides the entry path of the insertion member (210) on the end surface that contacts the insertion member (210) when the insertion member (210) penetrates the fastening hole (112) of the fastening member (110).

[0051] The lower portion of the fastening member (110) into which the insertion member (210) enters may be formed with a structure that slopes downward toward the end. Accordingly, even if the height difference between the hook portion (111) and the lower portion of the fastening member (110) is relatively smaller than the height of the entry end of the insertion member (210), the insertion member (210) can enter the fastening hole (112) of the fastening member (110).

[0052] When the hook portion (111) is inserted into the hook hole (211a) of the first insertion portion (211), the contact end portion (111a) may be joined to the inner surface (211b) of the hook hole (211a) in an uneven structure.

[0053] As a specific example, when the hook portion (111) is inserted into the hook hole (211a) of the first insertion portion (211), a plurality of assembly grooves (not shown) are provided on the contact end portion (111a) that contacts the inner surface (211b) of the hook hole (211a), and the inner surface (211b) of the hook hole (211a) may be provided with an assembly projection (not shown) that corresponds to and engages with the assembly grooves.

[0054] Meanwhile, the fixed jaw (113) serves to fix the insertion member (210) by being partially inserted into and interlocked with the lower part of the hook hole (211a) of the first insertion part (211).

[0055] In another embodiment of the present invention (not shown, only related components are of the same reference numeral), the bumper (10) of a vehicle may have a fastening structure between a bumper cover (100) and a skid plate (200) in which a skid fastening entry portion is injected at a predetermined mold angle (a).

[0056] At this time, the bumper (10) of the vehicle includes a fastening member (110) and an insertion member (210).

[0057] The fastening member (110) is formed in the skid fastening entry portion of the bumper cover (100) and may include a hook portion (111) having a plurality of protrusions (not shown) along the longitudinal direction on the inner inclined surface (111b), and a fastening hole (112) formed through the hook portion (111).

[0058] The insertion member (210) is located at the end of the skid plate (200) that enters the skid fastening entry part and may have a hook hole (211a) that primarily penetrates the fastening hole (112) of the fastening member (110) and secondarily fastens to the hook part (111).

[0059] At this time, the hook portion (111) may have a curved surface (not shown) that guides the entry path of the insertion member (210) on the end surface that contacts the insertion member (210) when the insertion member (210) penetrates the fastening hole (112) of the fastening member (110).

[0060] At this time, the skid fastening entry portion of the fastening member (110) may have a predetermined step structure with the upper portion forming the hook portion (111) and the lower portion forming the bottom surface having a fastening hole (112) in between.

[0061] At this time, the height difference between the hook portion (111) and the lower portion may be relatively greater than the height of the entry end of the insertion member (210). Here, the entry end of the insertion member (210) that is skid-fastened to the fastening member (110) may be formed with a structure that slopes downward toward the end.

[0062] The present invention is not limited to the aforementioned embodiments and may be implemented with various modifications within the scope permissible to the technical concept of the present invention. Explanation of the symbols

[0063] 10: Vehicle bumper 100: Bumper cover 110: Fastening member 111: Hook part 111a: Contact end 111b: Inclined surface 112: Fastening hole 113: Fixing jaw 114: Auxiliary hook section 200: Skid plate 210: Insertion member 211: First insertion part 211a: Hook hole 211b: Inner surface 212: Second insert 212a: Side hole

Claims

Claim 1 A bumper of a vehicle comprising: a bumper cover having a plurality of fastening members, each having a hook portion formed spaced apart along the longitudinal direction and a fastening hole formed through the hook portion, forming the exterior of the bumper; and a skid plate having an insertion member that is snap-fit ​​connected to the hook portion by passing through the fastening hole of the fastening member, wherein the insertion member comprises a first insertion portion having a hook hole into which the hook portion is press-fitted when passing through the fastening hole, and a second insertion portion extending from the first insertion portion and having a side hole around the hook hole of the first insertion portion. Claim 2 A bumper of a vehicle according to claim 1, wherein the hook portion has a downwardly inclined surface on the cross-section that contacts the insertion member when the insertion member penetrates the fastening hole of the fastening member. Claim 3 A bumper of a vehicle according to claim 1, wherein the hook portion has a curved surface on the end surface that contacts the insertion member when the insertion member penetrates the fastening hole of the fastening member, the hook portion having a curved surface that guides the entry path of the insertion member. Claim 4 A bumper of a vehicle according to claim 1, wherein, when the hook portion is inserted into the hook hole of the first insertion portion, the contact end is joined to the inner surface of the hook hole in an uneven structure. Claim 5 A bumper of a vehicle according to claim 1, wherein the hook portion is provided with a plurality of assembly grooves at a contact end that contacts the inner surface of the hook hole when inserted into the hook hole of the first insertion portion, and the inner surface of the hook hole is provided with an assembly projection corresponding to the assembly grooves. Claim 6 A bumper of a vehicle according to claim 1, wherein the fastening member is spaced apart from the lower end of the hook portion and includes a fixing jaw that protrudes a predetermined height in front of the fastening hole and fixes the insertion member penetrating the fastening hole. Claim 7 A bumper of a vehicle according to claim 6, wherein the fixed jaw is partially inserted into the lower end of the hook hole of the first insertion part and interlocks to fix the insertion member. Claim 8 A bumper of a vehicle having a fastening structure between a bumper cover and a skid plate, wherein the skid fastening entry portion is injected at a predetermined mold angle, the bumper comprises: a fastening member formed in the skid fastening entry portion of the bumper cover and having a plurality of protrusions along the longitudinal direction on an inner inclined surface, and a fastening hole formed through the hook portion; and an insertion member positioned at the end of the skid fastening entry portion of the skid plate and having a hook hole that primarily penetrates the fastening hole of the fastening member and secondarily engages with the hook portion, wherein the hook portion has a curved surface on an end surface that contacts the insertion member when the insertion member penetrates the fastening hole of the fastening member, guiding the entry path of the insertion member, and the insertion member comprises a first insertion portion having the hook hole into which the hook portion is press-fitted when penetrating the fastening hole, and a second insertion portion extending from the first insertion portion and having a side hole around the hook hole of the first insertion portion. Claim 9 In claim 8, the skid fastening entry portion of the fastening member has a lower portion forming a bottom surface and an upper portion having the hook portion formed thereon, and the lower portion having a predetermined step structure with the fastening hole in between. Claim 10 A bumper of a vehicle according to claim 9, wherein the height difference between the hook portion and the lower portion is relatively greater than the height of the entry end of the insertion member. Claim 11 A bumper of a vehicle according to claim 9, wherein the entry end of the insertion member, which is skid-fastened to the fastening member, is formed with a structure that slopes downward toward the end.

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