JP2007126079A - Automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automobile capable of preventing a traction/firmly binding hook and a side member from being deformed at traction and transportation time. <P>SOLUTION: This automobile is provided with right and left side members 2, 2 extending in the forward and backward directions of the vehicle, a bumper reinforcement 3 connected with tip parts 2a of the right and left side members 2, 2 and extending in the direction of vehicle width, a bumper 4 arranged on an outer side of the vehicle of the bumper reinforcement 3, and the traction/firmly binding hook 20 which passes through the bumper 4 from the outer side of the vehicle and whose inner end part 20b is fixed to the tip parts 2a of the side members 2. A hook supporting member 25 extending so as to approach a rear face of the bumper 4 is fixed in a connection part of the bumper reinforcement 3 with the side member 2 to support an outer end part of the traction/firmly binding hook 20 by the hook supporting member 25. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automobile having a tow / lock hook used for towing or transporting a vehicle, and more particularly to a support structure in which the tow / lock hook is supported by a vehicle body.

  Towing and securing hooks used during towing or transportation are subjected to a pulling force during towing and a bending moment due to floor fixation during transportation. For this reason, the traction / locking hook is attached to the vehicle body frame via a reinforcing bracket or the like.

For example, in Patent Document 1, a hat-shaped bumper beam bracket is bolted and fixed to the front end surfaces of left and right side members, a plate nut and a fixing plate are fixed to the bumper beam bracket, and a tow hook is attached from the outside of the vehicle. The hole of the bumper is inserted and fixed to the plate nut.
JP 2002-53065 A

  By the way, in the conventional hook support structure, when a bending load is applied to the tow hook, a large bending moment acts on the fastening portion of the tow hook, and in some cases, the tow hook, the side member, etc. may be deformed. is there.

  In particular, in recent automobiles, there is a case where only the design of a bumper or the like is changed using an existing body frame. For example, when the bumper is disposed at a position deviated from the front end surface of the side member toward the vehicle exterior side, it is necessary to lengthen the traction / locking hooks accordingly, and the amount of overhang increases accordingly. As a result, the bending moment increases and the deformation is likely to occur. Here, in order to avoid the increase in the bending moment, it is conceivable to extend the side member or the like. However, in this case, the body frame itself is changed, which is difficult in terms of cost.

  The present invention has been made in view of the above-described conventional situation, and an object of the present invention is to provide an automobile capable of preventing the towing and securing hooks and the side members from being deformed during towing and transportation.

  The present invention relates to left and right side members extending in the vehicle front-rear direction, a bumper inhose extending in the vehicle width direction coupled to the front ends of the left and right side members, and the vehicle exterior side of the bumper inhose In the automobile provided with a bumper disposed on the outer side of the vehicle and a tow / locking hook that penetrates the bumper from the outside of the vehicle and is fixed to the front end of the side member. A hook support member extending so as to be close to the back surface of the bumper is fixed to a joint portion with the member, and the outer end portion of the traction / locking hook is supported by the hook support member.

  According to a second aspect of the present invention, in the first aspect, a hook reinforcing member is disposed at a portion facing the hook supporting member in the distal end portion of the side member, and the hook reinforcing member and at least a part of the hook supporting member are Are combined with the bumper-in hose in between.

  The invention of claim 3 is characterized in that, in claim 2, a nut to which an inner end portion of the traction / locking hook is screwed is fixed to the hook reinforcing member.

  According to the automobile of the first aspect of the present invention, the hook support member extending so as to be close to the back surface of the bumper is fixed to the side member coupling portion of the bumper inn hose, and the hook support member is used for the traction / locking hook. Since the outer end portion is supported, the traction / locking hook has an inner end portion supported by the side member and an outer end portion supported by the hook support member. The amount can be reduced, an increase in bending moment can be avoided, and deformation of the towing / locking hooks, side members, etc. can be prevented. Thereby, the design freedom at the time of changing only the design of a bumper etc. using the existing body frame can be increased. That is, even when the bumper is displaced from the bumper innose to the outside of the vehicle, the bending moment can be increased simply by setting the height of the hook support member to the outside of the vehicle according to the amount of displacement. Can be avoided.

  In the invention of claim 2, since the hook reinforcing member is disposed in the tip portion of the side member facing the hook supporting member, and the hook reinforcing portion and the hook supporting member are coupled with the bumper inn hose interposed therebetween. -The input from the lashing hook can be distributed and transmitted to the side members via the bumper-in hose, and the support strength against the bending moment can be further increased.

  Moreover, since the strength of the side member coupling portion of the bumper inhose can be increased by the hook support member and the hook reinforcing member, it is possible to suppress the amount of deformation due to the separation of the bumper inn hose at the time of an offset collision. In other words, if the bumper rein hose has a structure in which both ends of the bumper rein hose are simply bolted and fixed to the left and right side members, if an impact force is applied from the bumper rein hose on one side to the side member during an offset collision, There is a possibility that the load concentrates on the fastening portion with the side member of the bumper inhose on the side, and the bumper innose hose is deformed in a peeling direction. In the present invention, since the bumper-in hose is sandwiched between the hook support member and the hook reinforcing portion, the strength against peeling of the bumper-in hose can be increased.

  According to the third aspect of the present invention, since the nut to which the traction / locking hook is screwed is fixed to the hook reinforcing member, the fixing force of the traction / locking hook can be secured and the attaching / detaching operation can be easily performed.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 7 are views for explaining an automobile according to an embodiment of the present invention, in which FIG. 1 is a front view of a body frame of the automobile, FIG. 2 is a front view of a traction / locking hook of the body frame, 3 is a cross-sectional side view of the support portion of the traction / locking hook (cross-sectional view taken along line III-III in FIG. 2), and FIG. 4 is a cross-sectional plan view of the support portion of the traction / locking hook (line IV-IV in FIG. 2). 5 and 6 are perspective views of the hook support member, and FIG. 7 is a perspective view of the hook reinforcement member. Note that front and rear and left and right in this embodiment mean front and rear and left and right when viewed from the front of the vehicle.

  In the figure, reference numeral 1 denotes a front body frame of an automobile, which is arranged on a pair of left and right side members 2 and 2 extending in the longitudinal direction of the vehicle and on the front end surfaces of the left and right side members 2 and 2. The bumper inhose 3 extending in the vehicle width direction, the front bumper 4 disposed with a predetermined gap on the front side of the bumper inhose 3, and the front end portions of the left and right side members 2, 2 And a radiator support 5 disposed on the surface.

  The radiator support 5 is connected to the left and right side members 2, 2 at the lower ends thereof and extended to the upper left and right side supports 6, 6, and the bumper rein hose 3 at the center in the vehicle width direction. A center support 8 having a lower end portion coupled thereto and extending upward, and a cross member 7 extending in the vehicle width direction coupled to the center support 8 and the upper end portions of the left and right side supports 6 and 6 are provided.

  The left and right side members 2 are in the shape of a rectangular tube having a closed cross section, and a U-shaped member rein hose 9 is disposed at the front end 2a in the side member 2, and the member rein hose 9 Is coupled to the side member 2.

  The bumper-in hose 3 has a structure in which front and rear bumper-in hoses 10, 11 having a hat-like longitudinal section are overlapped. A lower portion 6 a of the side support 6 is fastened and fixed to the upper end portion 3 a of the bumper-in hose 3 by a pair of left and right bolts 13 and 13 via a retainer 12. The lower end portion 6 b of the side support 6 is fastened and fixed to the lower end portion 3 b by a bolt 14 together with a lower flange portion 2 b that is bent at the front edge of the side member 2. In addition, a lateral flange portion 2 c that is bent at the front edge of the side member 2 is fastened and fixed to the outer end portion 3 c of the bumper-in hose 3 by a bolt 15.

  The front bumper 4 extends in the vehicle width direction along the bumper-in hose 3 and is attached to each bumper bracket 17, 18, 19 fixed to the bumper-in hose 3. The front bumper 4 has a design in which left and right side portions 4a and 4a are bulged forward of the vehicle in order to enhance the design effect of the entire front bumper 4.

  A hook insertion hole 4b is formed in a part of the left and right side parts 4a of the front bumper 4 that faces the joint part of the side member 2 of the bumper rein hose 3, and the hook insertion hole 4b is detachably mounted. The lid 4c is closed. The lid 4c is removed during towing or transportation.

  A support mechanism 21 that detachably supports the traction / locking hook 20 is disposed at a joint portion between the left and right ends of the bumper inhose 3 and the side member 2. Since the basic structure of the left and right support mechanisms 21 is substantially the same, in the present embodiment, the right support mechanism 21 in the front view will be described in detail.

  The traction / locking hook 20 has a structure in which a male thread is formed on the inner end 20b of the rod-shaped hook body 20a, and a loop-shaped hook 20d is fixed to an outer end 20c protruding from the front bumper 4 to the outside of the vehicle. Is.

  The support mechanism 21 is disposed on the front surface of the bumper rein hose 3 and extends from the bumper rein hose 3 so as to be close to the back surface of the side part 4a of the front bumper 4; A hook reinforcing member 26 disposed so as to face the hook supporting member 25 across the bumper innose 3 in the front end portion 2a, and a hook reinforcing member 26 disposed on the hook reinforcing member 26. And a nut 27 to which the inner end 20b is screwed.

  The hook support member 25 includes first and second hook support brackets 30 and 31 and a cylindrical collar member 32. Specifically, the first and second hook support brackets 30 and 31 are assembled so as to form a box, and the collar member 32 is placed in the box formed by the first and second hook support brackets 30 and 31. It has an insertion-fixed structure.

  The first hook support bracket 30 has a vertical cross-sectional hat shape, and includes upper and lower fixing portions 30a and 30a, and upper and lower wall portions 30b and 30b that bend and extend forward from the upper and lower fixing portions 30a. And a front wall portion 30c that connects the front ends of the upper and lower wall portions 30b. The front wall portion 30c is close to the back surface of the front bumper 4.

  The second hook support bracket 31 has a hat-like cross section, and includes left and right fixing portions 31a and 31a, and left and right wall portions 31b and 31b that bend and extend forward from the left and right fixing portions 31a. And a front wall portion 31c that joins the front ends of the left and right wall portions 31b. The front wall portions 30c and 31c are formed with insertion holes 30d and 31d through which the collar member 32 is inserted. The collar member 32 is inserted into the first and second hook support brackets 30 and 31, passes through the bumper-in hose 3 and is close to the nut 27 so as to be coaxial.

  The hook reinforcing member 26 has a size over the entire length of the side member 2 in the vertical direction and the left and right directions, and most of the upper side thereof is located above the traction / locking hook 20. Is formed.

  The hook reinforcing member 26 includes a front wall portion 26a and a rear wall portion 26b that extend in the vertical direction, an upper wall portion 26c that joins the upper ends of the front and rear wall portions 26a, 26b, a front wall portion 26a, a front wall portion 26a, It has upper side portions 26d and 26e for connecting the side ends of 26b. A nut 26f is fixed to the upper end portion of the inner surface of the front wall portion 26a.

  The upper wall portion 26c of the hook reinforcing member 26 is joined to the side member 2 together with the above-described member reinhose 9 by welding, and the nut 27 is attached to the lower ends of the front wall portion 26a and the rear wall portion 26b. Passed and combined. The lower surface and right side surface of the nut 27 are joined to the memberly hose 9 by welding.

  The upper fixing portion 30a of the first hook support bracket 30 is fastened to the hook reinforcing member 26 with the bumper in hose 3 interposed therebetween by tightening the bolt 35 into the nut 26f of the front wall portion 26a of the hook reinforcing member 26. It is fixed. The lower fixing portion 30a is fastened and fixed to the lower flange portion 2b of the side member 2 with the bumper in hose 3 sandwiched between the bolts 14 described above.

  The left fixing portion 31a of the second hook support bracket 31 is coupled to the bumper inhose 3 by welding. The right fixing portion 31a is fastened and fixed to the lateral flange portion 2c of the side member 2 with the bumper in hose 3 sandwiched between the bolts 15 described above.

  When the vehicle is towed or transported, the lid 4c of the front bumper 4 is removed, and the tow / lock hook 20 is inserted into the hook insertion hole 4b from the outside of the vehicle, inserted into the collar member 32, and screwed into the nut 27. Fix it. The rope 20 is locked to the hook 20d of the tow / locking hook 20 for towing and transportation. After completion of towing and transportation, the towing / locking hook 20 is removed and the lid 4c is attached.

  According to the present embodiment, the hook support member 25 extending so as to be close to the back surface of the front bumper 4 is fixed to the joint portion of the side member 2 of the bumper rein hose 3, and the hook support member 25 pulls and binds. Since the outer end portion of the hook 20 is supported, the traction / locking hook 20 has an inner end portion 20b supported by a joint portion between the bumper inhose 3 and the side member 2, and a central portion of the hook body 20a is hook-supported. As a result of being supported by the member 25, the substantial overhang amount of the traction / locking hook 20 can be reduced, the bending moment applied to the hook 20 can be reduced, the traction / locking hook 20, the bumper inn hose 3, It is possible to prevent the side member 2 and the like from being deformed.

  Thereby, the design freedom at the time of changing only the design of the front bumper 4 using the existing body frame 1 can be increased. That is, even when the design is such that the left and right side portions 4a of the front bumper 4 bulge outward from the bumper inhose 3, it is easy only by setting the height dimension of the hook support member 25 to the outside of the vehicle. It can respond to.

  The hook support member 25 is assembled so that the first and second hook support brackets 30 and 31 form a box, and a collar is formed in the box formed by the first and second hook support brackets 30 and 31. Since the member 32 is inserted and fixed, the hook body 25a of the traction / locking hook 20 can be supported over substantially the entire length, and even if the traction / locking hook 20 becomes long, the support strength against the bending moment can be obtained. Can be increased.

  In the present embodiment, a hook reinforcing member 26 is disposed in the front end portion 2a of the side member 2 so as to face the hook supporting member 25, and the hook reinforcing portion 26 and the hook supporting member 25 are connected to the bumper inhose. Since the bolts 14, 15, and 35 are coupled with the pin 3 interposed therebetween, the input from the traction / locking hook 20 can be distributed and transmitted to the side member 2 via the bumper inn hose 3, thereby supporting the bending moment. The strength can be further increased.

  Further, since the strength of the side member coupling portion of the bumper inhose 3 can be increased by the hook reinforcing portion 26 and the hook support member 25, the deformation amount due to the separation of the bumper inhose 3 at the time of an offset collision can be suppressed. That is, when the both ends of the bumper rein hose 3 are simply bolted and fixed to the left and right side members 2 and 2, for example, the left side member from the bumper rein hose 3 on the left side at the time of an offset collision. When an impact force is applied to 2, the load concentrates on the fastening portion of the right bumper inhose 3 with the right side member 2, and the bumper inhose 3 may be deformed in a peeling direction.

  In the present embodiment, since the nut 27 to which the towing / locking hook 20 is screwed is fixed to the hook reinforcing member 26, the fixing force of the towing / locking hook 20 can be secured and the attaching / detaching operation can be easily performed. Can do.

  Further, the nut 27 is fixed to the lower ends of the member rein hose 9 and the hook reinforcing member 26, and the hook reinforcing member 26 is bridged over the upper and lower surfaces of the side member 2 and joined. Is borne by the hook reinforcing member 26 via the nut 27, and the upward movement of the nut 27 can be restricted.

  In the above embodiment, the case where the hook support mechanism 21 is disposed on the left and right sides of the front bumper 4 has been described, but the hook mechanism 21 of the present invention can also be applied to the left and right sides of the rear bumper. The hook mechanism may be disposed on either the left or right side of the front bumper, and may be disposed on either the left or right side of the rear bumper that forms a diagonal line with the hook mechanism disposed on the front bumper.

1 is a front view of a vehicle body frame according to an embodiment of the present invention. It is a front view of the tow / locking hook of the body frame. FIG. 3 is a cross-sectional side view (a cross-sectional view taken along line III-III in FIG. 2) of the support portion of the traction / locking hook. FIG. 4 is a cross-sectional plan view (a cross-sectional view taken along the line IV-IV in FIG. 2) of the support portion of the traction / locking hook. It is a perspective view of the hook support member of the said traction and lashing hook. It is a perspective view of the said hook support member. It is a perspective view of a hook reinforcement member of the above-mentioned pulling and securing hook.

Explanation of symbols

2 Side member 2a Front end (tip)
3 Bumper Inn Hose 4 Front Bumper 20 Towing and Tightening Hook 20b Inner End 25 Hook Support Member 26 Hook Reinforcement Member 27 Nut

Claims (3)

  The left and right side members extending in the vehicle front-rear direction, the bumper inhose extending in the vehicle width direction coupled to the front ends of the left and right side members, and disposed outside the bumper inhose In an automobile comprising a bumper and a traction / locking hook that penetrates the bumper from the outside of the vehicle and is fixed to the tip of the side member, the coupling with the side member of the bumper inhose A hook supporting member extending so as to be close to the back surface of the bumper is fixed to a portion, and an outer end portion of the traction / locking hook is supported by the hook supporting member.   The hook reinforcement member is disposed in a portion of the tip end portion of the side member facing the hook support member, and the bump reinforcement member and at least a part of the hook support member serve as the bumper inhose. An automobile characterized by being sandwiched and joined.   3. The automobile according to claim 2, wherein a nut to which an inner end portion of the traction / locking hook is screwed is fixed to the hook reinforcing member.

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