JP2017030461A - Headlamp mounting structure - Google Patents

Abstract

A headlamp mounting structure capable of increasing the mounting strength of a lamp bracket to a vehicle body frame without providing a reinforcing member. A vehicle body frame, a cab mount that is fixed to a front end portion of the vehicle body frame and supports the front end portion of the cab in a tiltable manner, and a vehicle width direction outer side than the front end portion of the vehicle body frame. The head lamp support part 41 which supports the head lamp 43, and the lamp bracket 4 which integrally has the vehicle body attachment part 42 fixed to the vehicle body frame 3 are provided. The vehicle body mounting portion 42 of the lamp bracket 4 integrally has a mount connecting portion fixed to the cab mount 5. [Selection] FIG.

Description

  The present invention relates to a headlamp mounting structure.

  Patent Document 1 describes a headlamp mounting structure in which an intermediate bracket is fixed to a front end portion of a side member, the headlamp bracket is supported in a cantilever manner by the intermediate bracket, and the headlamp is fixed to the headlamp bracket. Has been.

JP 2007-190984 A

  In the conventional structure described above, in order to increase the mounting strength of the lamp bracket (intermediate bracket) with respect to the vehicle body frame (side member), it is necessary to add a reinforcing member, resulting in a complicated structure and an increase in cost.

  Therefore, an object of the present invention is to provide a headlamp mounting structure that can increase the mounting strength of the lamp bracket to the vehicle body frame without providing a reinforcing member.

  In order to achieve the above object, the headlamp mounting structure according to the first aspect of the present invention includes a vehicle body frame, a cab mount, and a lamp bracket. The cab mount is fixed to the front end portion of the vehicle body frame, and supports the front end portion of the cab so as to be tiltable. The lamp bracket integrally includes a headlamp support portion and a vehicle body attachment portion. The headlamp support portion is disposed on the outer side in the vehicle width direction with respect to the front end portion of the body frame and supports the headlamp. The vehicle body attachment portion is fixed to the vehicle body frame. The body mounting portion of the lamp bracket integrally has a mount connecting portion fixed to the cab mount.

  In the above configuration, since the lamp bracket is fixed to the cab mount in addition to the vehicle body frame, the mounting strength of the lamp bracket can be increased without adding a reinforcing member.

  According to a second aspect of the present invention, there is provided a headlamp mounting structure according to the first aspect, wherein the body frame includes a pair of left and right side members extending in the front-rear direction and front end portions of the left and right side members extending in the vehicle width direction. And a cross member connecting the two. The cross member integrally has a protruding end portion that protrudes outward in the vehicle width direction from the front end portion of the side member. The body mounting portion of the lamp bracket is fixed to the protruding end portion of the cross member.

  In the above configuration, since the lamp bracket is fixed to the cross member, the headlamp can be mounted on the vehicle body side even when a space for mounting the lamp bracket cannot be secured at the front end portion of the side member.

  In addition, since the lamp bracket is fixed to the protruding end portion that protrudes outward in the vehicle width direction from the front end portion of the side member, the length of the lamp bracket in the vehicle width direction is longer than when the lamp bracket is fixed to the front end portion of the side member. Therefore, it is possible to shorten the length of the headlamp and to increase the support rigidity of the headlamp by the lamp bracket.

  According to a third aspect of the present invention, there is provided the headlamp mounting structure according to the second aspect, wherein the protruding end portion of the cross member includes a front surface portion of the cross member intersecting with the front-rear direction, and an upper edge and a lower end of the front surface portion of the cross member A cross member upper surface portion and a cross member lower surface portion, which extend rearward from the edges and face each other, are integrally provided. The cab mount is fixed to the upper surface of the cross member.

  The body mounting portion of the lamp bracket integrally includes a bracket front surface portion, a bracket upper surface portion, and a bracket lower surface portion. The bracket front part overlaps the cross member front part from the front and is fixed to the cross member front part. The bracket upper surface portion extends rearward from the upper end edge of the bracket front surface portion, overlaps the cross member upper surface portion from above, and is fixed to the cross member upper surface portion. The bracket lower surface portion extends rearward from the lower end edge of the bracket front surface portion, overlaps the cross member lower surface portion from below, and is fixed to the cross member lower surface portion.

  The mount connecting portion is a connecting bracket integrally including a base plate portion fixed to the upper surface portion of the bracket and a connecting plate portion standing up from the base plate portion and extending upward. When the connecting plate portion of the connecting bracket is fastened to the cab mount, the bracket upper surface portion is fixed to the cross member upper surface portion.

  The surface rigidity of the bracket upper surface portion becomes higher than the surface rigidity of the bracket lower surface portion due to the increase in the plate thickness by the base plate portion, and the bracket lower surface portion is fastened and fixed to the cross member lower surface portion from above and below.

  In the above configuration, the front surface of the bracket, the upper surface of the bracket, and the lower surface of the bracket are overlapped with the front surface of the cross member, the upper surface of the cross member, and the lower surface of the cross member. Since it is fixed to the front part, the cross member upper surface part and the cross member lower surface part, the mounting strength of the lamp bracket can be increased both in the vertical direction and in the horizontal direction (vehicle width direction), and the support rigidity of the headlamp Can be increased.

  In addition, the surface rigidity of the upper surface of the bracket is higher than the surface rigidity of the lower surface of the bracket, and the bracket lower surface is fastened and fixed to the lower surface of the cross member from the vertical direction. The cross member insertion width between the top surface and the bottom surface of the bracket (the vertical distance between the bottom surface of the top surface of the bracket and the top surface of the bottom surface of the bracket) is the separation width between the top surface of the cross member and the bottom surface of the cross member ( Even if the distance between the upper surface of the upper surface of the cross member and the lower surface of the lower surface of the cross member is larger than the upper surface of the cross member, the lower surface of the bracket having low surface rigidity is deformed by the fastening force from the vertical direction. Thus, the surface can be brought into surface contact with the lower surface of the cross member, and a desired mounting strength can be ensured.

  Furthermore, since the surface rigidity of the bracket upper surface is made higher than that of the bracket lower surface by increasing the plate thickness due to the connecting bracket, which is a separate member, the lamp bracket can be mounted by casting or the like so that the thickness of the bracket upper surface and the bracket lower surface is different. An increase in cost can be suppressed as compared with the case of integral formation.

  According to the present invention, the attachment strength of the lamp bracket to the vehicle body frame can be increased without providing a reinforcing member.

FIG. 3 is a plan view of a vehicle in which a headlamp mounting structure according to an embodiment of the present invention is mounted on both ends of a front cross member in the vehicle width direction when viewed from above. (A), (B) is the perspective view which looked at the attachment structure of the headlamp of FIG. 1 from the diagonally upper front of the vehicle. FIG. 2 is a perspective view of the headlamp mounting structure of FIG. It is the top view which looked at the attachment structure of the headlamp of FIG. 1 from upper direction. It is AA arrow sectional drawing of the attachment structure of the headlamp of FIG. FIG. 2 is a front view of the front cross member before the headlamp mounting structure of FIG. 1 is mounted as viewed from the front of the vehicle. It is the perspective view which looked at the state where the front side cross member of Drawing 6 was connected to the side member from the slanting right front upper side of a vehicle, and is a figure where the front side cross member was connected to the side member. It is the front view which looked at the front cross member before the mounting structure of the headlamp which concerns on this invention was attached from the front direction of the vehicle. It is the perspective view which looked at the state where the front side cross member of Drawing 8 was connected to the side member from the slanting right front upper side, and is a figure where the front side cross member was connected to the side member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the headlamp mounting structure according to the present invention is basically symmetrical with respect to the center in the vehicle width direction, so FIGS. 2 (A), 2 (B), 3 and 4 show only one headlamp mounting structure, and this headlamp mounting structure will be described. Further, in each figure used in the embodiment for carrying out the present invention, a direction is indicated by an arrow, and this indicates a direction seen from a passenger seated in the driver's seat. Arrow UP indicates the vehicle upward direction, arrow FR indicates the vehicle front direction, and arrow IN indicates the vehicle width inner side direction. Furthermore, each arrow has shown the directionality when each component is integrated in the vehicle body frame.

  As shown in FIG. 1, the vehicle according to the present embodiment is a cab-over type vehicle in which a cab (not shown) is generally positioned in front of an engine (not shown). Each mounting structure 1 is provided. The driver's seat of the vehicle 2 is arranged on the left side or the right side in the cab (cabinet) according to the destination.

  A headlamp mounting structure 1 according to the present invention applied to such a vehicle includes a vehicle body frame 3, a lamp bracket 4, and a cab mount 5.

  As shown in FIGS. 2A, 2B, 3, 4, 5, 6, and 7, the body frame 3 includes a pair of left and right side members 31, 31 and a plurality of cross members 32. Have The pair of left and right side members 31, 31 extend in the vehicle front-rear direction on both sides in the vehicle width direction. In this specification, “extended” means providing in an extended state. Each side member 31 has, for example, a substantially U-shaped cross section, and includes a side wall portion 31a, an upper wall portion 31b, and a bottom wall portion 31c. The upper wall portion 31b and the bottom wall portion 31c extend opposite to each other from the upper and lower ends of the side wall portion 31a toward the inner side in the vehicle width direction. In order to arrange each cross member 32 at a predetermined interval along the vehicle longitudinal direction of the side member 31, both ends thereof are joined to a pair of left and right side members 31, 31, and both side members 31, 31 are connected to each other. doing. For example, the cross member 32 has a substantially U-shaped cross section.

  Among such cross members 32, a cross member 32 (hereinafter referred to as “front cross member 32”) that connects the front end portions of a pair of left and right side members 31, 31 is a pair of left and right sides. The members 31, 31 integrally have projecting end portions 33 projecting outward from the front end portions in the vehicle width direction. That is, the protruding end portion 33 is extended from the both ends of the front cross member 32 so as to protrude outward in the vehicle width direction. Accordingly, when the front end portions of the pair of left and right side members 31, 31 are connected by the front cross member 32, the protruding end portion 33 protrudes from the front side of the side wall portion 31 a of the side member 31.

  Further, the protruding end portion 33 of the front cross member 32 integrally includes, for example, a cross member front surface portion 33a, a cross member upper surface portion 33b, and a cross member lower surface portion 33c. The cross member front surface portion 33a is disposed so as to cross the vehicle front-rear direction, and the cross member upper surface portion 33b and the cross member lower surface portion 33c extend from the upper end edge and the lower end edge of the cross member front surface portion 33a toward the rear of the vehicle, respectively. It is arranged to face. Therefore, the protruding end portion 33 is formed with a substantially U-shaped cross section, like the front cross member 32.

  As shown in FIGS. 2A, 2B, 3, 4, and 5, the lamp bracket 4 integrally includes a headlamp support portion 41 and a vehicle body attachment portion. The headlamp support portion 41 is disposed on the outer side in the vehicle width direction from the front end portions of the pair of left and right side members 31, 31 and supports the headlamp 43. The headlamp support portion 41 is formed in a substantially rectangular frame shape including the side portion 41a on the inner side in the vehicle width direction, and is fastened and fixed to the vehicle body attachment portion 42 with bolts or the like. The head lamp 43 referred to here includes a turn signal lamp 44 positioned below the head lamp 43.

  The vehicle body attachment portion 42 is fixed to the protruding end portion 33 of the front cross member 32 that is the vehicle body frame 3. The vehicle body attachment portion 42 integrally includes a bracket front surface portion 42a, a bracket upper surface portion 42b, and a bracket lower surface portion 42c. The bracket front surface portion 42a overlaps the cross member front surface portion 33a from the front and is fixed to the cross member front surface portion 33a. The bracket upper surface portion 42b extends rearward from the upper end edge of the bracket front surface portion 42a, overlaps the cross member upper surface portion 33b from above, and is fixed to the cross member upper surface portion 33b. The bracket lower surface portion 42c extends rearward from the lower end edge of the bracket front surface portion 42a, overlaps the cross member lower surface portion 33c from below, and is fixed to the cross member lower surface portion 33c.

  The bracket front surface portion 42a and the bracket lower surface portion 42c are fastened directly to the cross member front surface portion 33a and the cross member lower surface portion 33c by bolts.

  Further, the vehicle body mounting portion 42 of the lamp bracket 4 integrally has a mount connecting portion 6 that is fixed to the cab mount 5. The cab mount 5 supports the front end portion of the cab so as to be freely tiltable. The cab mount 5 is fixed to the cross member upper surface portion 33b.

  Specifically, the bracket upper surface portion 42b of the vehicle body attachment portion 42 is fastened to a cab mount 5 fixed to the cross member upper surface portion 33b so as to tiltably support the front end portion of the cab. Are fixed to the upper surface 33b of the cross member. At this time, the bracket upper surface portion 42b is fastened to a portion where the cab mount 5 is easily fastened by a screwing member such as a bolt or a nut. For example, an L-shaped connection bracket 6 that is easily brought into surface contact with the rib 5a formed on the cab mount 5 along the vehicle longitudinal direction is fixed to the bracket upper surface portion 42b. In order to form the connection bracket 6 in an L shape, a base plate portion 6a fixed to the bracket upper surface portion 42b and a connection plate portion 6b standing up from the base plate portion 6a and extending upward are integrally provided. The connecting plate portion 6b and the rib 5a are brought into surface contact and fastened with a screwing member.

  That is, when the connecting plate portion 6b of the L-shaped connecting bracket 6 is fastened to the cab mount 5, the bracket upper surface portion 42b is fixed to the cross member upper surface portion 33b. The L-shaped connecting bracket 6 functions as the mount connecting portion 6. Accordingly, the mount connecting portion 6 and the L-shaped connecting bracket 6 are given the same reference numerals.

  Further, on the outer side in the vehicle width direction of the bracket front surface portion 42a, for example, a bracket inclined surface portion 42d that bends obliquely rearward in the vehicle width direction outer side from the outer edge in the vehicle width direction of the bracket front surface portion 42a is integrally formed. The upper and lower reinforcing plates 42e and 42f are fixed to the bracket lower surface portion 42c.

  The upper and lower reinforcing plates 42e and 42f reinforce the bent portion between the bracket upper surface portion 42b and the bracket lower surface portion 42c and the bracket front surface portion 42a, and the outer end in the vehicle width direction is fixed to the bracket inclined surface portion 42d. .

  The operation and effect of the headlamp mounting structure 1 configured as described above according to the present invention will be described below.

  Since the lamp bracket 4 is fixed to the cab mount 5 in addition to the front cross member 32 of the vehicle body frame 3, the mounting strength of the lamp bracket 4 can be increased without adding a reinforcing member.

  Further, since the lamp bracket 4 is directly fixed to the front cross member 32, the headlamp 43 is placed on the vehicle body side even when a space for mounting the lamp bracket 4 cannot be secured at the front end portion of the side member 31. Can be installed.

  Further, when the lamp bracket 4 is fixed to the projecting end portion 33 that protrudes outward in the vehicle width direction from the front end portion of the side member 31, the lamp bracket 4 is compared with the case where the lamp bracket 4 is fixed to the front end portion of the side member 31. The length of the bracket 4 in the vehicle width direction can be shortened, and the support rigidity of the headlamp 43 by the lamp bracket 4 can be increased.

  Further, the bracket front surface portion 42a, the bracket upper surface portion 42b, and the bracket lower surface portion 42c of the vehicle body mounting portion 42 are connected to each other, the cross member front surface portion 33a, the cross member upper surface portion 33b, and the cross member lower surface portion of the protruding end portion 33 of the front cross member 32. When the lamp bracket 4 is overlapped with each other and fixed to the cross member front surface portion 33a, the cross member upper surface portion 33b, and the cross member lower surface portion 33c, respectively, in both the vertical direction and the left and right direction (vehicle width direction). The mounting strength of the headlamp 43 can be increased, and the support rigidity of the headlamp 43 can be increased.

  Further, the surface rigidity of the bracket upper surface portion 42b of the vehicle body mounting portion 42 is made higher than the surface rigidity of the bracket lower surface portion 42c, and the bracket lower surface portion 42c is fastened and fixed to the cross member lower surface portion 33c from the vertical direction. The cross member insertion width between the bracket upper surface portion 42b and the bracket lower surface portion 42c (the vertical distance between the lower surface of the bracket upper surface portion 42b and the upper surface of the bracket lower surface portion 42c) is crossed in order to prevent the attachment. Even if it is wider than the separation width of the member upper surface portion 33b and the cross member lower surface portion 33c (the vertical distance between the upper surface of the cross member upper surface portion 33b and the lower surface of the cross member lower surface portion 33c), The bracket lower surface portion 42c having a low surface rigidity is deformed by a fastening force from above and below to form the cross member lower surface portion 33c. Can be contacted, it is possible to secure a desired attaching strength.

  Therefore, when the L-shaped connection bracket 6 fastened and fixed to the cab mount 5 is fixed to the bracket upper surface portion 42b of the vehicle body attachment portion 42, the overall thickness of the bracket upper surface portion 42b is increased by the connection bracket 6. As a result, the surface rigidity becomes higher than the bracket lower surface portion (low-rigidity surface portion) 42c. The surface rigidity of the bracket upper surface portion 42b is higher than that of the bracket lower surface portion 42c by increasing the plate thickness by the connecting bracket 6 which is a separate member, so that the plate thickness of the bracket upper surface portion 42b and the bracket lower surface portion 42c is different by casting or the like. Compared with the case where the lamp bracket 4 is formed, an increase in cost can be suppressed.

  In the above-described embodiment, the L-shaped connection bracket 6 is used as the connection mount 6. However, the present invention is not limited to this, and the bracket upper surface portion 42b is fixed by fastening the connection mount 6 to the cab mount 5. The connecting mount 6 may be any shape connecting member as long as it can be fixed to the cross member upper surface portion 33b.

  In addition, a bracket inclined surface portion 42d that bends obliquely rearward in the vehicle width direction outside from the vehicle width direction outer edge of the bracket front surface portion 42a is integrally formed on the outer side in the vehicle width direction of the bracket front surface portion 42a. When the upper and lower reinforcing plates 42e and 42f are fixed to the lower surface portion 42c, the upper and lower reinforcing plates 42e and 42f are provided between the bracket upper surface portion 42b and the bracket lower surface portion 42c and the bracket front surface portion 42a. While reinforcing the bent portion, the outer end in the vehicle width direction is fixed to the bracket inclined surface portion 42d. Further, the upper and lower reinforcing plates 42e and 42f suppress deformation of the vehicle body attachment portion 42 and the bracket inclined surface portion 42d.

  In the above-described embodiment, the vehicle body mounting portion 42 of the lamp bracket 4 is fixed to the protruding end portion 33 of the front cross member 32. However, the present invention is not limited thereto, and may be fixed to the side member 31. In this case, the cab mount 5 is also fixed to the side member 31.

  As shown in FIGS. 8 and 9, such a side member 31 is connected to the front cross member 32 that does not integrally have the protruding end portion 33, so that the front side and front cross member of the side wall portion 31 a of the side member 31 are connected. The end surface of the end portion in the vehicle width direction of 32 is substantially flush.

  Since the front cross member 32 has a substantially U-shaped cross section, the cross member front surface portion 32a, the cross member upper surface portion 32b, and the cross member lower surface portion 32c are integrally formed in the same manner as the protruding end portion 33. Have. The cross member front surface portion 32a is disposed so as to cross the vehicle longitudinal direction, and the cross member upper surface portion 32b and the cross member lower surface portion 32c extend from the upper end edge and the lower end edge of the cross member front surface portion 32a to the vehicle rear side, respectively. It is arranged to face.

  Even in this case, since the lamp bracket 4 is fixed to the cab mount 5 in addition to the side member 31 of the vehicle body frame 3, the mounting strength of the lamp bracket 4 can be increased without adding a reinforcing member.

  As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the discussion and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

  The headlamp mounting structure according to the present invention can be used for large vehicles such as trucks and connected vehicles.

DESCRIPTION OF SYMBOLS 1 Headlamp attachment structure 2 Vehicle 3 Body frame 31 Side member 31a Side wall part 31b Upper wall part 31c Bottom wall part 32 Cross member (front side cross member)
33 Projecting end portion 33a Cross member front surface portion 33b Cross member upper surface portion 33c Cross member lower surface portion 4 Lamp bracket 41 Head lamp support portion 41a Side portion on the inner side in the vehicle width direction 42 Car body mounting portion 42a Bracket front surface portion 42b Bracket upper surface portion 42c Bracket lower surface Portion 42d bracket inclined surface portion 42e upper reinforcing plate 42f lower reinforcing plate 43 head lamp 44 turn signal lamp 5 cab mount 5a rib 6 mount connecting portion (L-shaped connecting bracket)
6a Base plate part 6b Connecting plate part

Claims (3)

Body frame,
A cab mount fixed to the front end of the vehicle body frame and tiltably supporting the front end of the cab;
A headlamp support portion that is disposed outside the front end portion of the body frame in the vehicle width direction and supports the headlamp, and a lamp bracket that integrally includes a vehicle body mounting portion that is fixed to the body frame,
The headlamp mounting structure, wherein the vehicle body mounting portion of the lamp bracket integrally has a mount connecting portion fixed to the cab mount. The headlamp mounting structure according to claim 1,
The vehicle body frame has a pair of left and right side members extending in the front-rear direction, and a cross member extending in the vehicle width direction and connecting front end portions of the left and right side members,
The cross member integrally has a protruding end portion that protrudes outward in the vehicle width direction from the front end portion of the side member,
The headlamp mounting structure, wherein the vehicle body mounting portion of the lamp bracket is fixed to the protruding end portion of the cross member. The headlamp mounting structure according to claim 2,
The protruding end portion of the cross member includes a cross member front surface portion that intersects with the front-rear direction, a cross member upper surface portion and a cross member lower surface portion that extend rearward from the upper edge and the lower edge of the cross member front surface and face each other. And having
The cab mount is fixed to the top surface of the cross member,
The lamp bracket mounting portion of the lamp bracket overlaps the front surface of the cross member from the front, and is fixed to the front surface of the cross member. The bracket front portion extends rearward from the upper end edge of the front surface of the bracket. A bracket upper surface that overlaps with the upper surface of the member from above and is fixed to the upper surface of the cross member, and extends rearward from a lower edge of the front surface of the bracket and overlaps with the lower surface of the cross member from below. Integrally with the lower surface of the bracket fixed to the part,
The mount connecting portion is a connecting bracket integrally including a base plate portion fixed to the bracket upper surface portion and a connecting plate portion standing up from the base plate portion and extending upward.
By fastening the connecting plate portion of the connecting bracket to the cab mount, the bracket upper surface portion is fixed to the cross member upper surface portion,
The surface rigidity of the bracket upper surface portion is higher than the surface rigidity of the bracket lower surface portion due to an increase in the plate thickness by the base plate portion,
The mounting structure of the headlamp, wherein the bracket lower surface is fastened and fixed to the cross member lower surface from above and below.

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