JP2001180240A - Mounting structure of towing hook - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a towing hook capable of improving the mounting strength of the towing hook, determining a position of a towing point sufficiently at a lower part, easily positioning and temporarily holding (temporarily fastening) the towing hook in assembling the towing hook, and fixing a bumper to a car body side without adding a new component. SOLUTION: A hook bracket 2a is mounted on a car body bracket 13 fixed to a car body side by means of a first fastening means (for example, bolts 23a, 23b and nuts 24a, 24b) for fastening in the vertical direction of a car body and a second fastening means (for example, a bolt 23c and a nut 24c) for fastening in the longitudinal direction of the car body thereby to mount the towing hook 2 to the car body through the car body bracket 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toe hook mounting structure for mounting a toe hook having a hook member mounted on a hook bracket to a vehicle body.

[0002]

2. Description of the Related Art In a motor vehicle, a towing hook is provided at a front or rear portion of a vehicle body for the purpose of towing another vehicle or tying down the vehicle itself with a rope during transportation by ship or wagon. Is provided.

[0003] The towing hook is usually attached to a high-strength body portion such as a body frame or side members at front and rear end portions of the vehicle. The hook tip of the towing hook on which the rope or the like is hooked is disposed at a position further below the lower end of the bumper, or is disposed so as to protrude outward from the end face through the opening formed in the bumper. It is common that it is.

FIGS. 8 to 12 show examples of a conventional structure for mounting a towing hook in an automobile. In the case of the mounting structure of the towing hook shown in each of FIGS. 8 to 10, a towing hook (hook member) 30 formed by bending a bar-shaped steel material into a U-shape or a V-shape or a similar shape is used. 31 is attached by welding or the like to a vehicle body frame 32 attached to the lower surface of the rear end (or front end). In the case of the towing hook mounting structure shown in FIGS. 11 and 12, respectively,
A towing hook 30 having a plate-shaped steel plate provided with an engaging hole 33 extending in an oblique direction and a towing hook 30 made of a bar-shaped steel material are attached to the side surface or lower surface of the side member 34 by welding or the like. 8 to 12, 3
Reference numeral 5 denotes a mounting portion of the towing hook 30 to the vehicle body frame 32 or the side member 34, and reference numeral 36 denotes a bumper.

The lower end (hook tip) α of each towing hook 30 is disposed at a position lower than the lower end β of the bumper 36, and the traction point γ of each towing hook 30 is set at the lower end. It is configured to be set at a position slightly lower than the portion β or at a position substantially equal to this position (see FIGS. 8 to 12).

[0006]

By the way, in this kind of towing hook 30, an attaching portion 3 of the towing hook 30 to the vehicle body frame 32 or the side member 34 is required.
5 and the traction point γ (see FIGS. 8 to 12)
The shorter the distance L is, the more the strength (attachment strength) of the towing hook 30 can be secured. Therefore, shortening the distance L is advantageous in terms of strength. However, bumper 3
6 has a lower lower end β, the tow point γ of the towing hook 30 needs to be set at a position below the lower end β, so that the distance L is inevitably longer and the point of strength is increased. At a disadvantage. In addition, in the case of a vehicle having a low floor β (position where the floor panel 31 is provided) in addition to a low lower end β of the bumper 36, the distance L is further increased. Become.

The present invention has been made in view of such circumstances, and an object of the present invention is to improve the mounting strength of a towing hook and set the position of a towing point sufficiently downward. It is possible to easily position and temporarily hold (temporarily fix) the towing hook when assembling the towing hook, and to fix the bumper without adding any new parts to the vehicle body. It is an object of the present invention to provide a mounting structure for a towing hook having the above configuration.

[0008]

In order to achieve the above object, according to the present invention, there is provided a toe hook mounting structure for mounting a toe hook formed by attaching a hook member to a hook bracket to a vehicle body. The hook bracket is attached to the fixed body bracket by first fastening means for fastening in the vertical direction of the vehicle body and second fastening means for fastening in the longitudinal direction of the vehicle body, whereby the towing hook is attached to the bracket of the vehicle body. To the vehicle body via In the present invention, the front end of the vehicle body bracket is fixed to the cross member, and the rear end is fixed to the floor panel. In the present invention, the hook bracket is provided with a claw or an insertion hole, and the vehicle body bracket is provided with an insertion hole or a claw corresponding to the claw or the insertion hole of the hook bracket. Under the condition that the hook bracket is positioned and temporarily held with respect to the vehicle body bracket by being inserted into the insertion hole, a towing hook is attached to the vehicle body via the vehicle body bracket by the first and second fastening means. ing. Further, in the present invention, the hook bracket is provided with an insertion hole, the vehicle body bracket is provided with a claw portion formed of a bent piece, and the hook portion of the vehicle body bracket is inserted into the insertion hole of the hook bracket. By placing the hook bracket on the claw portion, under the state where the hook bracket is positioned and temporarily held with respect to the vehicle body bracket,
A towing hook is attached to the vehicle body via the vehicle body bracket by the first and second fastening means. Further, in the present invention, the lower end of the bumper disposed near the towing hook is fixed to the towing hook.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIGS. 1 and 2 show a vehicle 1 having a towing hook mounting structure according to an embodiment of the present invention. As shown in FIGS. Is fitted with a towing hook 2.

As shown in FIG. 3, the towing hook 2 includes a hook bracket 2a, a U-shaped hook member (traction hook) 2b integrally attached to the hook bracket 2a, and a bumper bracket for mounting a bumper. 2
and a stay 2d for attaching a towing hook. More specifically, the base portion 3a of the hook bracket 2a is bent and formed into a U-shaped cross section, and a pair of flange pieces 3b and 3c are integrally provided on both left and right sides of the base portion 3a by bending. I have. And these flange pieces 3
The two sides (both legs) 4a, 4b of the U-shaped hook member 2b are attached to the hook members 2b, 3c by welding or the like.
A U-shaped portion (hook portion) 4c of b is provided so as to protrude from one end of the hook bracket 2a. Thus, the U-shaped portion 4c of the hook member 2b and one end of the hook bracket 2a form the closed loop-shaped portion R for the hook.
Are formed.

A clip engaging hole 5 for mounting a bumper is provided at one end (rear side of the vehicle body) of the hook bracket 2a.
The two side portions of the bumper bracket 2c having the above are attached to the pair of flange pieces 3b and 3c of the hook bracket 2a by welding or the like, and the stay 2d having the bolt insertion hole 6 is welded to the upper portion of the hook bracket 2a by the welding or the like. Installed. And, in this stay 2d, FIG.
As shown in FIGS. 5 and 6, a concave notch 10 is formed, and when the stay 2d is attached to the hook bracket 2a, the notch 10 and the inclined wall of the hook bracket 2a are formed. 7 and a rectangular insertion hole 11
Are formed.

Further, a ceiling wall portion 8 at the other end side (front side of the vehicle body) of the hook bracket 2a is formed in parallel with the floor panel 15, and is inclined downward from the front side of the vehicle body toward the rear side of the vehicle body. 7 And
A pair of bolt insertion holes 9 are provided at both front and rear portions of the top wall portion 8.
a, 9b are provided, and these bolt insertion holes 9
A claw portion 12 formed of a cut and raised piece formed by cutting and raising a part of the top wall portion 8 and bending and forming it into a hook shape (inverted L-shape) is formed at a portion of the top wall portion 8 between the a and 9b. Is provided. In addition,
In the present embodiment, the pair of bolt insertion holes 9a and 9b and the claw portion 12 of the hook bracket 2a and the bolt insertion hole 6 of the stay 2d are aligned on a straight line along the longitudinal direction of the hook bracket 2a, that is, along the vehicle longitudinal direction. The stay 2d is provided with the bolt insertion hole 6 and the notch 10 of the stay 2d.
Are arranged in a direction perpendicular to the longitudinal direction of the hook bracket 2a, that is, on a straight line along the vehicle body vertical direction.
As shown in FIG. 6, reinforcing patches 40a and 40b are mounted inside the hook bracket 2a at locations corresponding to the pair of bolt insertion holes 9a and 9b, respectively.

On the other hand, the towing hook 2 described above
As shown in FIG. 6 to FIG. 6, it is mounted on a vehicle body (cross member 14 and floor panel 15) via a vehicle body bracket 13 mounted on the vehicle body side. The vehicle body bracket 13 includes a bracket body 13 having a U-shaped cross section.
a, a stay 13b attached to the rear end of the bracket body 13a by welding or the like, a reinforcement 13c attached inside the bracket body 13a, and a tightening member fixed to the front end side of the bracket body 13a. It is composed of a component integrally combined with the hook 13d. The above-described tightening hook 13d is used for fixing (tie-down) the vehicle at the time of transporting a ship or a freight car.

As shown in FIG. 6, a pair of bolt insertion holes 9 of the towing hook 2 are formed in the bottom walls of the bracket body 13a and the reinforcement 13c.
a, a pair of bolt insertion holes 18 respectively corresponding to 9b
a, 18b are formed, and the pair of bolt insertion holes 18 are formed.
An insertion hole 19 corresponding to the claw portion 12 of the towing hook 2 is formed at a position between the a and 18b. Further, the stay 13b has a bolt insertion hole 2 corresponding to the bolt insertion hole 6 of the stay 2d of the towing hook 2.
0 is provided, and a claw (insertion piece) 21 corresponding to the insertion hole 11 of the towing hook 2 is provided. The claw 21 is a bent piece formed by bending a part of the stay 13b.

Next, the procedure for attaching the towing hook 2 to the vehicle body via the vehicle body bracket 13 will be described as follows. First, the front end portion of the vehicle body bracket 13 is attached to the cross member 14 by welding or bolting, and the rear end portion is welded or bolted to the floor panel 15 to attach the vehicle body bracket 13 to the vehicle body side. Thereafter, the towing hook 2 is attached to the vehicle body bracket 13.

When assembling the towing hook 2 to the vehicle body bracket 13, the claw 12 provided on the hook bracket 2 a of the towing hook 2 is attached to the vehicle body bracket 1.
3 and hooked onto the bracket body 13a of the vehicle body bracket 13, and then the claw portion 21 of the stay 13b of the vehicle body bracket 13 is inserted into the insertion hole 11 of the stay 2d of the towing hook 2. The towing hook 2 is moved forward so that the stay 2d
Is placed on the claw portion 21.

Next, the towing hook 2 is fastened and fixed to the vehicle body bracket 13 by bolting at three places from below and from behind. That is, two bolts 23
a and 23b are inserted into the bolt insertion holes 9 on the towing hook 2 side.
a, 9b and bolt insertion holes 18 on the vehicle body bracket 13 side
a, 18b from below and screwed onto the nuts 24a, 24b to fasten the towing hook 2 to the vehicle body bracket 13 with a vertical tightening force, and to attach one bolt 23c to the towing hook 2 side. The toe hook 2 is inserted into the bolt insertion hole 6 of the vehicle body bracket 13 and the bolt insertion hole 20 of the vehicle body bracket 13 from behind and screwed to the nut 24c, and the toeing hook 2 is fastened and fixed to the vehicle body bracket 13 by a fastening force in the front-back direction. That is, the bolts 23a, 23b and the nuts 24a, 24
b (first fastening means for fastening in the up-down direction of the vehicle) and front-rear fastening means (second fastening means for fastening in the longitudinal direction of the vehicle) consisting of bolts 23c and nuts 24c. Attach the towing hook 2 to the side. As a result, the hook member 2b of the towing hook 2 is fixedly arranged so as to protrude rearward in the vehicle body in an inclined state, and the bumper bracket 2c of the towing hook 2 is fixedly arranged in a state of hanging downward.

Thereafter, when the bumper 25 is mounted on the vehicle body side, the U-shaped portion (hook portion) 4c of the towing hook 2 is inserted and arranged in the opening 26 provided at the lower edge of the bumper 25. The bumper 25 is mounted so as to be slightly protruded toward the rear side of the vehicle body.
Of the towing hook 2 is brought into contact with the lower end 25a of the towing hook 2. Then, the clip engaging hole 27 provided in the bumper 25 and the bumper bracket 2
The lower end 25a of the bumper 25 is attached to the towing hook 2 by inserting the clip 28 into the clip engaging hole 5 of FIG.

According to the mounting structure of the towing hook having the above-described structure, the first to perform the fastening in the vertical direction of the vehicle body.
Fastening means (bolts 23a, 23b and nuts 24a,
24b), in addition to the fastening of the towing hook 2 to the vehicle body side, the second fastening means (the bolt 23c and the nut 24) for fastening in the vehicle longitudinal direction.
c), the towing hook 2 is tightened and fixed to the vehicle body side, so that the mounting strength of the towing hook 2 can be increased, and the traction point γ of the towing hook 2 (see FIGS. 5 and 6). ) Can be set at a position sufficiently lower than the mounting portion of the towing hook 2 on the vehicle body side. Further, since the work of tightening and fixing the towing hook 2 to the vehicle body bracket is performed from the lower side of the vehicle body and the rear side of the vehicle body, the work of tightening and fixing can be easily performed, and therefore, this operation can be performed easily and quickly. . In addition, the front end of the vehicle body bracket 13 serving as the mounting base of the towing hook 2 is fixed to the cross member 14 and the rear end thereof is fixed to the floor panel 15, so that the strength of the vehicle body bracket 13 itself and thus the towing hook 2 Therefore, the strength of the mounting base can be improved, so that the mounting strength of the towing hook 2 can be sufficiently ensured.

Further, when assembling the towing hook 2 to the vehicle body bracket 13, the claw portion 12 of the towing hook 2
And an engagement operation between the vehicle body bracket 13 and the insertion hole 19,
In addition, the engaging action between the insertion hole 11 of the towing hook 2 and the claw portion 21 of the vehicle body bracket 13 causes the positioning and temporary holding (temporary fixing) of the towing hook 2 with respect to the vehicle body bracket 13. Thus, the workability of assembling the towing hook 2 to the vehicle body bracket 13 can be improved.

Further, since the lower end 25a of the bumper 25 is clipped to the bumper bracket 2c of the towing hook 2, the mounting strength (fixing strength) of the bumper 25 can be reduced without adding new dedicated parts to the vehicle body. ) Can be improved.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment.
Various modifications and changes are possible based on the technical concept of the present invention. For example, in the embodiment described above, the claw portion 12 is provided on the towing hook 2 and the insertion hole 19 corresponding to the claw portion 12 is provided on the vehicle body bracket 13. On the contrary, FIG. As shown in FIG. 6, the towing hook 2 may be provided with an insertion hole 19 'and the vehicle body bracket 13 may be provided with a claw portion 12' corresponding to the insertion hole 19 '. Also in this case, the vehicle body bracket 13
The towing hook 2 can be easily attached to the vehicle body, and the towing hook 2 can be positioned with respect to the vehicle body bracket 13 and temporarily held.

In the above-described embodiment, the towing hook is attached to the rear end of the vehicle. However, the present invention can be applied to the case where the towing hook is attached to the front end of the vehicle. Needless to say.

[0025]

According to the first aspect of the present invention, first fastening means for fastening the vehicle body bracket fixed to the vehicle body in the vertical direction of the vehicle body and second fastening means for fastening the vehicle body in the longitudinal direction of the vehicle body. By attaching the hook bracket, the towing hook is attached to the vehicle body via the vehicle body bracket, so that it is orthogonal to the first fastening means in addition to being fixed by fastening from below. In accordance with the tightening and fixing by the second tightening means, the mounting strength of the towing hook can be sufficiently ensured, and the towing hook's traction point can be set at a further lower position. Become. Further, since the work of fastening and fixing the towing hook is performed from the lower side and the rear side (or the front side), the work can be easily and quickly performed.

According to the present invention, the front end of the vehicle body bracket is fixed to the cross member, and the rear end of the bracket is fixed to the floor panel. The strength of the vehicle body bracket itself serving as the mounting base can be sufficiently ensured, which is advantageous for securing the mounting strength of the toneing hook 2.

According to a third aspect of the present invention, the hook bracket is provided with a claw or an insertion hole, and the vehicle body bracket is provided with an insertion hole or a claw corresponding to the claw or the insertion hole of the hook bracket. The towing hook is attached to the vehicle body via the vehicle body bracket by the first and second fastening means under the condition that the hook portion is inserted into the insertion hole and the hook bracket is positioned and temporarily held with respect to the vehicle body bracket. As a result, the positioning and temporary holding of the hook bracket and thus the towing hook with respect to the vehicle body bracket can be reliably performed by a simple operation of simply inserting the claw into the insertion hole, and the towing hook assembling work Performance can be improved.

According to a fourth aspect of the present invention, the hook bracket is provided with an insertion hole, the vehicle body bracket is provided with a claw portion formed of a bent piece, and the hook member of the vehicle body bracket is provided in the insertion hole of the hook bracket. By inserting the hook bracket on this claw,
The toe hook is attached to the vehicle body via the vehicle body bracket by the first and second fastening means in a state where the hook bracket is positioned and temporarily held with respect to the vehicle body bracket. In addition, since the work can be placed on the vehicle body bracket while being temporarily held, the work of tightening and fixing the towing hook can be performed more easily.

According to the fifth aspect of the present invention, since the lower end of the bumper disposed near the towing hook is fixed to the towing hook, a new component for mounting the bumper on the vehicle body side is provided. The lower end portion of the bumper can be fixed without adding any additional components.

[Brief description of the drawings]

FIG. 1 is a side view of an automobile having a towing hook mounting structure according to an embodiment of the present invention.

FIG. 2 is a rear view of the automobile.

FIG. 3 is a perspective view of a towing hook.

FIG. 4 is an exploded perspective view showing an attached state of a towing hook on a vehicle body side.

FIG. 5 is an enlarged side view of a portion indicated by an arrow A in FIG. 1, and is a side view showing an attached state of a towing hook on a vehicle body side.

FIG. 6 is a cross-sectional view showing a state where a towing hook is attached to a vehicle body.

FIG. 7 is a sectional view similar to FIG. 6, illustrating another embodiment (modification) of the present invention.

FIG. 8 is a sectional view showing a conventional example of a mounting structure of a towing hook.

FIG. 9 is a cross-sectional view showing another conventional example of a mounting structure of a towing hook.

FIG. 10 is a sectional view showing still another conventional example of a mounting structure of a towing hook.

FIG. 11 is a sectional view showing still another conventional example of a mounting structure of a towing hook.

FIG. 12 is a sectional view showing still another conventional example of a mounting structure of a towing hook.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 2 Towing hook 2a Hook bracket 2b Hook member 2c Bumper bracket 2d Stay 5 Clip engaging hole 6 Bolt insertion hole 9a, 9b Bolt insertion hole 11 Insertion hole 12, 12 'Claw portion 13 Body bracket 13a Bracket body 13b Stay 14 Cross member 15 Floor panel 18a, 18b Bolt insertion hole 19, 19 'Insert hole 20 Bolt insertion hole 21 Claw portion 23a to 23c Bolt 24a to 24c Nut 25 Bumper 25a Lower end portion 27 Clip engaging hole 28 Clip

Claims (5)

[Claims] 1. A toe hook mounting structure for mounting a toe hook formed by attaching a hook member to a hook bracket to a vehicle body, wherein the first to perform fastening in a vehicle body vertical direction to a vehicle body bracket fixed to the vehicle body side. The towing hook is attached to the vehicle body via the vehicle body bracket by attaching the hook bracket with fastening means and second fastening means for performing fastening in the vehicle longitudinal direction. Construction. 2. The towing hook mounting structure according to claim 1, wherein a front end of the vehicle body bracket is fixed to a cross member, and a rear end of the bracket is fixed to a floor panel. 3. The hook bracket is provided with a claw or an insertion hole, and the vehicle body bracket is provided with an insertion hole or a claw corresponding to the claw or the insertion hole of the hook bracket. Under the condition that the hook bracket is positioned with respect to the vehicle body bracket and temporarily held, the towing hook is attached to the vehicle body via the vehicle body bracket by the first and second fastening means in a state where the hook bracket is positioned and temporarily held in the insertion hole. The mounting structure for a towing hook according to claim 1 or 2, wherein: 4. The hook bracket is provided with an insertion hole, the vehicle body bracket is provided with a claw portion formed of a bent piece, and the claw portion of the vehicle body bracket is inserted into the insertion hole of the hook bracket. By placing the hook bracket on the part, the towing hook is moved by the first and second fastening means under the condition that the hook bracket is positioned with respect to the vehicle body bracket and temporarily held. The towing hook mounting structure according to claim 3, wherein the towing hook is mounted to the vehicle body via a vehicle body bracket. 5. A mounting structure for a towing hook according to claim 1, wherein a lower end of a bumper disposed near the towing hook is fixed to the towing hook. .