JP2001146108A - Traction hook for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traction hook for an automobile eliminating flawing of a car body when a vehicle is conveyed or towed to be capable of absorbing a shock in case it is applied from the forward of the car body. SOLUTION: In this traction hook for an automobile, provided with a traction hook hole in a tip end part of a hook plate, the tip end part 4a of the hook plate 4 is formed in a sloped surface 5 lowered down toward a tip end side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traction hook for an automobile, which is attached to connect the vehicles when the automobile is fixed or when the automobile is towed.

[0002]

2. Description of the Related Art As shown in FIG. 6, a tow hook 100 is provided on the lower surface of a vehicle body 101 to fix the vehicle at the time of transporting the vehicle, tow a broken vehicle, or the like. When a vehicle is towed by another vehicle in the event of a failure or the like, a towing hook (also called a towing hook) 100 is used.

[0003] Various tow hooks 100 are known. Generally, a round bar is bent into a U-shape 102 (see FIG. 7), and a tow hook hole 103a is formed. What attached the letter-shaped plate 103 104
(See FIG. 8), a plate 106 in which a towing hook hole 105a is formed in a thick plate 105 (see FIG. 9) is known. However, round or sheet metal towing hooks 102,1
04, 106, the impact is towing hooks 102, 104,
Through 106 to the frame pipe on the vehicle body side where the towing hooks 102, 104, 106 are attached,
The frame pipe may be deformed. Therefore, as a measure to prevent deformation of the body frame, the towing hook is made of a single plate to improve rigidity. FIG. 10 shows a towing hook 107 formed by such a single sheet metal.
It is shown. The towing hook 107 is formed by pressing a steel plate or the like into a U-shaped cross section with a lower side opened by press molding to form a hook plate 108. A towing hook hole 108 a is formed at the tip end of the hook plate 108. ing. The towing hook 107 is generally connected to a frame pipe 109 such as a front suspension frame.
On the left and right sides of the vehicle, each of which is cantilevered and extends toward the front of the vehicle body.

[0004]

When such a tow hook 107 is towed by a tow rope 111 with a hook 110 as shown in FIG. 11, depending on the position of the tow hook of the vehicle to be towed. , Tow rope 111
May be an upward angle. Therefore, the middle of the towing rope 111 is the license plate 1 of the vehicle body 112.
There is a possibility that the license plate 113 or the bumper 114 may be damaged due to contact with the bumper 13 or the bumper 114.
On the other hand, the towing hook 107 needs to have sufficient strength so as not to be deformed at the time of transportation or being towed, and is conventionally formed into a shape that is hardly deformed even when an impact is applied. Therefore, even when an impact is applied, the function of absorbing energy is not performed. As a related prior art, Japanese Patent Application Laid-Open No. 11-198620 (Japanese Patent Application No. 10-3
590) and Japanese Patent Application No. 10-355516.

The present invention solves the above-mentioned problems, and provides a tow hook for an automobile which can absorb a shock when a shock is applied from the front of the car body without damaging the car body during transportation or towing. The purpose is to:

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention solves the above-mentioned problem. In a towing hook for an automobile having a towing hook hole at the tip of a hook plate, the tip of the hook plate is directed toward the tip. That is, it is formed on a downwardly inclined surface. The present invention also provides a bead in the direction of dividing the distal end portion and the proximal end portion between the distal end portion of the hook plate provided with the towing hook hole and the proximal end portion where the hook plate is fixed to the vehicle body-side mounting portion. Has been established. Further, the present invention resides in that the beads of the hook plate are provided on the upper surface of the hook plate and the inner side surface of the vehicle body. Still further, a notch is provided at a boundary portion between the upper surface and both side surfaces of both sides of the bead formed on the upper surface of the hook plate.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3, reference numeral 1 denotes a front suspension frame provided on a lower surface of the vehicle body 2, and the front suspension frame 1 is supported between side frames (not shown) disposed on the left and right of the lower surface of the vehicle body 2. . On both left and right sides of the front suspension frame 1, towing hooks 3 extending toward the front of the vehicle body are mounted by welding or the like.

The towing hook 3 is shown in FIGS. 4 (a) and 4 (b).
As shown in (c), the hook plate 4 is formed by pressing a sheet metal into a U-shaped cross section with the lower surface opened. The hook plate 4 has a top surface 6 having an inclined surface 5 which is bent downward at the distal end portion 4a and descends toward the distal end. A towing hook hole 7 for towing by another vehicle is formed in the inclined surface 5 of the hook plate 4. On the other hand, on the side surface 8 of the hook plate 4,
An arc-shaped joint 9 for joining to the front suspension frame 1 is formed on the base end 4b side. The upper surface 5 between the distal end portion 4a and the proximal end portion 4b side of the hook plate 4 and the inner side surface 8b facing the inside of the vehicle body 2 have the distal end portion 4
a and a concave bead 10a in the direction of dividing the base end 4b,
10b are formed. In addition, bead 10
The reason why b is not provided is that the bead 10b is usually provided on the outside of the towing hook 3 so that the fixing rope is formed into an eight-shape when viewed from the front of the vehicle when the vehicle is fixed to a transfer means such as a ship. If provided, the towing hook 3 may be deformed to the outside of the vehicle body. Therefore, no bead 10b is provided on the outer side of the towing hook 3.

According to the above configuration, when the vehicle body 2 is towed by hooking the hook 12 of the tow rope 11 into the tow hook hole 7 of the tow hook 3, the tow rope 11 is stretched as shown in FIG. Connected to the towing hook. At this time, even if the position of the towing hook of the towing vehicle is high,
Since the tip portion 4a of the towing hook 3 is formed on the inclined surface 5 descending toward the tip, the hook 12 of the towing rope 11
Is located below the conventional position.
Therefore, the tow rope 11 is attached to the license plate 1 of the vehicle body 2.
Since there is no possibility of touching the bumper 3 or the bumper 14, there is no risk of damaging the license plate 13 or the bumper 14. The angle β formed by the tow rope 11 with respect to the ground is α <β with respect to the conventional angle α, so that it is difficult to contact the license plate 13 or the bumper 14 (FIG. 2).
See FIG. When an excessive impact load is applied from the front of the vehicle body 2, the towing hook 3 is bent by plastic deformation at the concave beads 10a and 10b to absorb the impact.

FIGS. 5 (a), 5 (b) and 5 (c) show another embodiment of the present invention in which the same parts as those of FIG. 4 are denoted by the same reference numerals. In this case, the upper surface of the hook plate 4 is shown. A notch 15 is provided at a boundary portion between the upper surface 5 and both side surfaces 8 in both side portions of the bead 10a formed in the step 5. Thereby, when an impact load is applied from the front, the towing hook 3 is easily bent at the concave beads 10a and 10b, and the impact is absorbed more effectively.

The present invention is not limited to only the above-described embodiment. For example, the mounting position of the towing hook 3 is not limited to the front suspension frame 1,
If it is a structure on the vehicle body side, it can be attached to any place such as a side frame or a cross member. The angle or length of the inclined portion of the towing hook 3 can be set arbitrarily, and the number and depth of the bead portions can be set as necessary. Needless to say, the present invention can be implemented by appropriately changing the gist of the present invention without changing the gist of the present invention.

[0012]

As described above, the following effects can be obtained by the towing hook for an automobile according to the present invention. 2. The towing hook for a vehicle according to claim 1, wherein the towing hook hole is provided at the tip of the hook plate, and the tip of the hook plate is formed on an inclined surface descending toward the tip. Since there is no risk of touching the plate or bumper, there is no risk of damaging the license plate or bumper. 3. A bead in the direction of dividing the distal end portion and the proximal end portion between the distal end portion of the hook plate provided with the towing hook hole and the proximal end portion where the hook plate is fixed to the vehicle body-side mounting portion. With this arrangement, when an excessive impact load is applied from the front of the vehicle body, the towing hook is plastically deformed and bent at the bead portion to absorb the impact. In claim 3, since the beads of the hook plate are provided on the upper surface of the hook plate and the inner side surface of the vehicle body, when an excessive impact load is applied from the front of the vehicle body, the towing hook is plastically deformed at the bead portion. Bends and absorbs shocks. 5. The bead portion according to claim 4, wherein a notch is provided at a boundary portion between the upper surface and both side surfaces of both sides of the bead formed on the upper surface of the hook plate, so that an excessive impact load is applied from the front of the vehicle body. The towing hook is easily plastically deformed and bent, absorbing the impact.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of a traction hook for a vehicle according to the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a perspective view showing a towing hook attaching portion of FIG. 1;

4 shows the towing hook of FIG. 3, wherein FIG. 4 (a) is a left side view of FIG. 3 (b), FIG. 4 (b) is a front view, and FIG. 4 (c) is a right side view of FIG. is there.

5 shows a modification of the towing hook of FIG. 3, and FIG.
5A is a left side view of FIG. 5B, FIG. 5B is a front view, FIG.
(C) is a right side view of (b).

FIG. 6 is a perspective view showing a vehicle equipped with a conventional towing hook.

FIG. 7 is a perspective view showing a conventional towing hook.

FIG. 8 is a perspective view showing a conventional towing hook.

FIG. 9 is a perspective view showing a conventional towing hook.

FIG. 10 is a perspective view showing a conventional towing hook attachment portion.

FIG. 11 is a conceptual diagram showing a relationship between a conventional towing hook and a vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front suspension frame 2 Body 3 Towing hook 4 Hook plate 5 Inclined surface 6 Upper surface 7 Towing hook hole 8 Side 9 Joint 4a Tip 4b Base end 10a, 10b Bead

Claims (4)

[Claims] 1. An automobile traction hook having a traction hook hole formed at the tip of a hook plate, wherein the tip of the hook plate is formed on an inclined surface descending toward the tip. hook. 2. A bead in the direction of dividing the distal end portion and the proximal end portion is provided between a distal end portion of the hook plate having a tow hook hole and a proximal end portion where the hook plate is fixed to the vehicle body-side mounting portion. The towing hook for an automobile according to claim 1, wherein the hook is provided. 3. The traction hook according to claim 2, wherein the beads of the hook plate are provided on an upper surface of the hook plate and a side surface inside the vehicle body. 4. The towing hook for an automobile according to claim 2, wherein a cutout is provided at a boundary portion between the upper surface and both side surfaces of both sides of the bead formed on the upper surface of the hook plate.