JP2017030548A - Attachment structure of head lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment structure of a head lamp which enables a head lamp to be attached to a vehicle body side even when a space for attaching a lamp bracket is not secured at a front end part of a side member.SOLUTION: An attachment structure of a head lamp includes: a vehicle body frame 3 having a pair of left and right side members 31 extending in a fore and aft direction and a cross member 32 extending in a vehicle width direction and connecting front end parts of the left and right side members 31 to each other; and lamp brackets 4, each of which integrally has a head lamp support part 41, disposed at an outer side of the front end part of the side member 31 in the vehicle width direction and supporting the head lamp 43, and a vehicle body attachment part 42 fixed to the vehicle body frame 3. The cross member 32 integrally has protruding end parts 33 protruding from the front end parts of the side member 31 to the outer side in the vehicle width direction. The vehicle body attachment part 42 of the lamp bracket 4 is fixed to the protruding end part 33 of the cross member 32.SELECTED DRAWING: Figure 2

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 above conventional structure, there is a possibility that a space for attaching the lamp bracket (intermediate bracket) to the front end portion of the side member cannot be secured depending on the vehicle type or type of the vehicle.

  Therefore, the present invention provides a headlamp mounting structure that allows a headlamp to be mounted on the vehicle body side even when a space for mounting the lamp bracket cannot be secured at the front end of the side member. Objective.

  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 and a lamp bracket. The vehicle body frame includes 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 the front end portions of the left and right side members. The lamp bracket integrally includes a head lamp support portion that is disposed on the outer side in the vehicle width direction from the front end portion of the side member and supports the head lamp, and a vehicle body mounting portion that is fixed to the vehicle body frame. 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, and the vehicle 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.

  The second aspect of the present invention is the headlamp mounting structure according to the first aspect, wherein the protruding end portion of the cross member integrally includes a cross member front surface portion, a cross member upper surface portion, and a cross member lower surface portion. The front surface of the cross member intersects with the front-rear direction. The cross member upper surface portion and the cross member lower surface portion extend rearward from the upper end edge and the lower end edge of the front surface of the cross member, and face each other.

  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.

  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.

  According to a third aspect of the present invention, there is provided the headlamp mounting structure according to the second aspect, wherein one of the bracket upper surface portion and the bracket lower surface portion is a low rigidity surface portion having a lower surface rigidity than the other, and the low rigidity surface portion is The upper surface of the cross member or the lower surface of the cross member is fastened and fixed from above and below.

  In the above configuration, one of the bracket upper surface portion and the bracket lower surface portion is a low-rigidity surface portion whose surface rigidity is lower than that of the other, and is fastened and fixed to the cross member side from the vertical direction. For example, the cross member insertion width between the bracket upper surface and the bracket lower surface (the vertical distance between the lower surface of the bracket upper surface and the upper surface of the bracket lower surface) is the cross member upper surface and the cross member lower surface. Even if it is wider than the gap width (the distance in the vertical direction between the upper surface of the upper surface of the cross member and the lower surface of the lower surface of the cross member), the low-rigidity surface portion is deformed by the fastening force from the vertical direction. Thus, the upper surface portion of the cross member or the lower surface portion of the cross member can be brought into surface contact, and a desired mounting strength can be ensured.

  According to the present invention, 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.

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 upper diagonal 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.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the mounting structure of the headlamp according to the present invention is basically symmetrical with respect to the center in the vehicle width direction, so FIG. 2, FIG. 3, and FIG. Only the headlamp mounting structure is shown, and the 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 and a lamp bracket 4.

  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. The bracket upper surface portion 42b is fastened to the cab mount 5 fixed to the cross member upper surface portion 33b so as to tiltably support the front end portion of the cab, and the cross member upper surface portion 33b is interposed via the cab mount 5. Fixed to. 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. Specifically, 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.

  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. .

  When the L-shaped connection bracket 6 is not provided, the bracket upper surface portion 42b may be a low-rigidity surface portion having a lower surface rigidity than the bracket lower surface portion 42c. Also in this case, it is fastened and fixed to the cross member side from the vertical direction.

  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 directly fixed to the front cross member 32, the head lamp 43 is attached to the vehicle body side even when the space for attaching the lamp bracket 4 cannot be secured at the front end of the side member 31. Can do.

  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, since one of the bracket upper surface portion 42b and the bracket lower surface portion 42c of the vehicle body mounting portion 42 can be a low rigidity surface portion having a lower surface rigidity than the other, and can be fastened and fixed to the cross member side from the vertical direction. In order to avoid the inability to assemble due to a shape error, the cross member insertion width between the bracket upper surface portion 42b and the bracket lower surface portion 42c (the vertical direction between the lower surface of the bracket upper surface portion 42b and the upper surface of the bracket lower surface portion 42) Distance) is larger than the separation width between the cross 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). Even if it exists, the low-rigidity surface portion is deformed by the fastening force from the vertical direction, and the cross member upper surface portion 33b or the cross member lower surface portion 3 is deformed. Can be in surface contact with the c, 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 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.

  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 Part 42d bracket inclined surface part 42e upper reinforcing plate 42f lower reinforcing plate 43 head lamp 44 turn signal lamp 5 cab mount 5a rib 6 L-shaped connecting bracket 6a base plate part 6b connecting plate part

Claims (3)

A body frame having 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 the front end portions of the left and right side members;
A headlamp support portion that is disposed outside the front end portion of the side member 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 vehicle body frame,
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 1,
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 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. A mounting structure for a headlamp, comprising a bracket lower surface portion fixed to the portion integrally. The headlamp mounting structure according to claim 2,
One of the bracket upper surface part and the bracket lower surface part is a low-rigidity surface part whose surface rigidity is lower than the other,
The headlamp mounting structure, wherein the low-rigidity surface portion is fastened and fixed to the top surface of the cross member or the bottom surface of the cross member from above and below.

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