JPH017605Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvement of vehicle body structure.

Conventionally, hook members for securing tow ropes, etc.
The commonly used structure is to separately attach a reinforcing panel to the end of the vertical frame of a vehicle and fix it to the end with screws, rivets, or the like.
This has resulted in problems such as an increase in the number of parts and an increase in weight.

Therefore, as shown in Japanese Utility Model Application Publication No. 57-184006, a hook member is provided at the fixed portion of the vertical frame and the cross frame, and the hook member is fixed across both frames. Structures are known that are configured to effectively distribute inputs from members to both frames.

However, this conventional structure is applied to a car body structure in which the lower surface of the bottom wall of the vertical frame is fixed to the upper surface of the upper wall of the cross frame, so the bottom wall of the vertical frame and the bottom wall of the cross frame are at approximately the same height as each other. It was difficult to apply it directly to existing car body structures.

This invention was devised in view of the above, and
A vertical frame extending in the longitudinal direction of the vehicle body, a cross frame fixed to an end of the vertical frame and extending in the width direction of the vehicle, the bottom wall of which is set at approximately the same height as the bottom wall of the vertical frame; a hook member disposed at a fixed portion between the frames, a bottom wall at an end of the vertical frame is extended and fixed to a lower surface of the bottom wall of the cross frame, and the hook member forms a hook portion. A hook bracket having a main body portion consisting of a locking member and a panel to which the locking member is fixed and extending substantially in the longitudinal direction and the vertical direction of the vehicle body, the hook bracket being attached to the vertical frame at the upper edge of the main body portion. a first flange extending upwardly and fixed to the outer surface of the vertical wall of the vertical frame, and a first flange formed at an edge of the main body portion on the cross frame side and extending downward in the cross frame; A second plate fixed to a flange provided across the width direction of the vehicle.
a third flange formed on a portion of the upper edge of the main body portion corresponding to the cross frame and fixed to a lower surface of the extended portion of the vertical frame; the first flange and the third flange; This is a hook member mounting structure characterized by having a fourth flange that is continuous with the hook member.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the figure, numeral 2 generally indicates the body of the automobile,
4 is a vertical frame consisting of an outer panel 4a and an inner panel 4b and extends in the longitudinal direction of the vehicle; 6 is a cross frame fixed to the rear end of the vertical frame 4 and extends in the vehicle width direction; 8 is a side edge of the vertical frame 4; 10 is a floor panel whose rear edge portions are fixed to the cross frame 6, and 10 is a hook member disposed at the fixed portion between the vertical frame 4 and the cross frame 6.
The bottom wall of the vertical frame 4 and the bottom wall of the cross frame 6 are set at almost the same height, and the ends of the vertical frame 4 are extended to the bottom wall of the cross frame 6 and are connected to each other. It has an extension 4c fixed to the lower surface of the bottom wall by spot welding.
The hook member 10 is a hook bracket having a locking member 12 formed by bending a rod-shaped member and to which a pulling rope or the like is locked, and a main body portion made of a panel as shown in the figure to which the locking member 12 is fixed. The hook bracket 14 consists of a hook bracket 14 which extends upward from a portion of the upper edge of the main body portion corresponding to the vertical frame 4, and is fixed by spot welding to the outer surface of an outer panel 4a forming a vertical wall of the vertical frame 4.
A second flange fixed by spot welding to the flange 14a and a flange 6c formed at the end edge of the main body portion on the cross frame 6 side, extending downward in the cross frame 6, and provided across the width direction of the vehicle. 14b, a third flange 14c formed at a portion of the upper edge of the main body portion corresponding to the cross frame 6 and fixed to the lower surface of the extension portion 4c of the vertical frame 4 by spot welding;
It has a fourth flange 14d that connects the flange 14a and the third flange 14c. The hook bracket 14 also has two recesses 14e that receive parts of the locking member 12 made of a rod-shaped member, and the locking member 12 is ultimately fixed to the hook bracket 14 by welding. There is.

According to the above structure, since the first flange 14a, second flange 14b and third flange 14c of the hook bracket 14 are fixed to the vertical frame 4 or the cross frame 6, respectively, the front and rear of the vehicle acting on the hook bracket 14 The force in the direction is mainly applied to the first flange 14a and the third flange 14.
The force in the vehicle width direction is mainly transmitted to the second flange 1 through the second flange 1.
4b and the third flange 14c to be distributed to both frames 4 and 6,
This not only eliminates the need for reinforcing panels and the like that were conventionally required, but also significantly improves the adhesion strength between the vertical frame 4 and the cross frame 6. Furthermore, as is well known, the adhesion strength of spot welding is strong in the shearing direction and weak in the peeling direction, but since the third flange 14c is always subjected to shearing forces in either the longitudinal direction or the width direction of the vehicle, Two flanges among the three flanges 14a, 14b, 14c are always subjected to shear in response to a force in the direction or a force in the width direction. As a result, even if either a force in the longitudinal direction or a force in the width direction is applied to the hook bracket 14, twisting that may cause separation of any of the portions of the flanges 14a, 14b, 14c fixed to the frame 4 or 6 is prevented. This can greatly reduce the damage to the hook bracket 14. Furthermore, the third flange 1
4c is fixed to the lower surface of the extension part 4c of the vertical frame 4 which is fixed to the lower surface of the bottom wall of the cross frame 6, so that when either a force in the vehicle longitudinal direction or a force in the width direction is applied to the hook bracket 14, However, that force can be reliably transmitted to both frames 4 and 6 via the fixed portion of the third flange 14c. Furthermore, since the first flange 14a and the third flange 14c are connected by the fourth flange 14d, even if a torsional force is applied between the vertical frame 4 and the cross frame 6, the first flange 14a and the third flange 14c are connected to each other by the fourth flange 14d. 1 flange 14a and the 3rd flange 14a
This has the effect of preventing cracks from forming at the boundary with the flange 14c.

Further, in the above embodiment, the locking member 12 made of a rod-shaped member and the hook bracket 14 are fixed by welding with the locking member 12 fitted into the recess 14e of the hook bracket 14. Since the welding work is configured as follows, the workability of the welding work is good, especially in positioning.
Further, the adhesive strength after welding is also good.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an entire embodiment of the present invention;
Figure 2 is an enlarged perspective view of the main parts of Figure 1, and Figure 3 is an enlarged perspective view of the main parts of Figure 1.
4 is a sectional view taken along the line - in FIG. 2, FIG. 5 is a sectional view taken along the line - in FIG. 2, and FIG. 6 is a sectional view taken along the line - in FIG. Second
It is an arrow sectional view along the - line of a figure. 2... Vehicle body, 4... Vertical frame, 6... Cross frame, 10... Hook member, 14a... First
Flange, 14b... Second flange, 14c...
Third flange, 14d...fourth flange.

Claims (1)

[Scope of utility model registration request] A vertical frame extending in the longitudinal direction of the vehicle body, a cross frame fixed to an end of the vertical frame and extending in the width direction of the vehicle, the bottom wall of which is set at approximately the same height as the bottom wall of the vertical frame; a hook member disposed at a fixed portion between the frames, a bottom wall at an end of the vertical frame is extended and fixed to a lower surface of the bottom wall of the cross frame, and the hook member forms a hook portion. A hook bracket having a main body portion consisting of a locking member and a panel to which the locking member is fixed and extending substantially in the longitudinal direction and the vertical direction of the vehicle body, the hook bracket being attached to the vertical frame at the upper edge of the main body portion. a first flange whose portion corresponding to the cross frame extends upward and is fixed to the outer surface of the vertical wall of the vertical frame; A second plate fixed to a flange provided across the vehicle width direction.
a third flange formed on a portion of the upper edge of the main body portion corresponding to the cross frame and fixed to a lower surface of the extended portion of the vertical frame; the first flange and the third flange; and a continuous fourth flange.