JP2020093739A - Side bumper structure - Google Patents

Abstract

To avoid interference between a side bumper and members disposed around the side bumper when the side bumper is rotated.SOLUTION: A side bumper structure in a front bumper 11, which is provided on a front surface of a vehicle 10 and comprises a center bumper 12 disposed at a center as seen in a width direction of the vehicle 10 and side bumpers 14 disposed at left and right sides of the center bumper 12, includes: body side brackets 30, each of which is fixed to a body frame 13 of the vehicle 10; side bumper side brackets 40, each of which is fixed to the side bumper 14; and hinge mechanisms 20, each of which is fixed to the body side bracket 30 and the side bumper side bracket 40 and supports the side bumper 14 in a manner that the side bumper 14 can rotate relative to the body frame 13. The hinge mechanism 20 has rotary shafts 21, 23 and rotates the side bumper 14 while moving the side bumper 14 to the front of the vehicle 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to a side bumper structure in a front bumper provided on the front surface of a vehicle such as a large-sized bus and divided into a center bumper and left and right side bumpers.

Conventionally, there is known a front bumper provided on the front surface of a vehicle such as a large-sized bus, which is divided into a center bumper and left and right side bumpers.
In such a front bumper, it is known that a side bumper is provided so as to be openable and closable with respect to a vehicle body frame.
In normal use, the side bumper is closed while being fixed to the body frame, but it is opened when adjusting, replacing, maintaining or inspecting a lamp provided on the front of the vehicle, for example. It
For example, in Patent Document 1 below, a side bumper is provided so as to be rotatable with respect to a body frame via a hinge mechanism, and the side bumper is attached to the body frame with one rotation axis of the hinge mechanism as an axis. The structure for opening and closing the side bumper by rotating the side bumper is described.

Japanese Patent Laid-Open No. 11-123981

However, in the structure having only one rotating shaft as in Patent Document 1, when the side bumper is rotated, it may interfere with a member arranged around the side bumper, so that the side bumper cannot be opened. Be done.
For example, in the case of the structure in which the rotating shaft is arranged at the end portion on the center side in the width direction of the side bumper as in Patent Document 1, since the rotating shaft and the center bumper are arranged close to each other, The side bumper may interfere with the center bumper when rotating.

The present invention has been made in view of the above problems, and an object thereof is to avoid interference between the side bumper and members arranged around the side bumper when the side bumper is opened.

The present invention provides a side bumper structure in a front bumper, which is provided on the front surface of a vehicle, and includes a center bumper arranged in the center and side bumpers arranged on the left and right of the center bumper. Fixed to the body side bracket, the side bumper side bracket fixed to the side bumper, the body side bracket and the side bumper side bracket, and the side bumper is rotated with respect to the body frame. And a hinge mechanism that supports the side bumper. The hinge mechanism has a plurality of rotation shafts and rotates while moving the side bumper in front of the vehicle.

According to the present invention, by rotating the side bumper while moving it toward the front of the vehicle, it is possible to rotate the side bumper with a sufficient gap between the side bumper and other members arranged around the side bumper. it can. Therefore, it is possible to easily avoid interference between the side bumper and other members arranged around the side bumper when the side bumper is opened, even though it has a simple structure using a hinge mechanism having a plurality of rotation axes. Become.

The side bumper structure of the present invention can be widely opened by changing the rotation axis when the side bumper is opened.

It is a perspective view explaining composition of a front bumper to which a side bumper structure concerning an embodiment is applied. It is an exploded perspective view of a side bumper structure concerning an embodiment. It is the perspective view which looked at the hinge mechanism which concerns on embodiment from the arrow A shown in FIG. It is a perspective view which expands and shows the principal part of the side bumper structure which concerns on embodiment, and shows the state with the side bumper closed. It is a perspective view which expands and shows the principal part of the side bumper structure which concerns on embodiment, and shows the state with the side bumper opened. It is the figure which looked at the side bumper structure concerning an embodiment from arrow B of Drawing 5. It is the perspective view which looked at the side bumper structure concerning an embodiment from arrow C of Drawing 4.

A side bumper structure as an embodiment will be described with reference to the drawings. The embodiments described below are merely examples, and are not intended to exclude various modifications and application of techniques that are not explicitly described in the following embodiments. Each configuration of the embodiment can be variously modified and implemented without departing from the spirit thereof. Also, they can be selected or combined as needed.

〔overall structure〕
FIG. 1 is a perspective view illustrating the configuration of a front bumper to which the side bumper structure of this embodiment is applied. Examples of the vehicle 10 (shown by a broken line) equipped with the front bumper 11 include automobiles such as large buses and trucks.
In the following description, the forward direction of the vehicle 10 is the front (indicated by “F” in the figure), and the rear, left, and right (in the figure, with reference to the state of facing forward) , "B" for the rear, "L" for the left, and "R" for the right) are defined, and a direction orthogonal to both the front-rear direction and the left-right direction is the vertical direction. Therefore, the left-right direction corresponds to the width direction of the vehicle 10, the front-back direction corresponds to the length direction of the vehicle 10, and the up-down direction corresponds to the height direction of the vehicle 10. In the present specification, the center of the vehicle 10 in the width direction is inward (inside in the width direction), and the opposite direction is outward (outside in the width direction).

A front bumper 11 is provided below the front surface of the vehicle 10 to absorb a shock from the front of the vehicle 10. The front bumper 11 has a shape extending in the width direction (left-right direction) of the vehicle 10, and includes a center bumper 12 arranged in the center of the vehicle 10 in the width direction and left and right parts arranged on the left and right sides of the center bumper 12. It is divided into three parts including the side bumper 14.

The center bumper 12 and the left and right side bumpers 14 are respectively supported by the body frame 13. The body frame 13 is a member that extends in the width direction of the vehicle 10 and forms a skeleton at the front of the vehicle 10. The center bumper 12 and the left and right side bumpers 14 are arranged on the front surface of the body frame 13 and cover the outer surface of the lower front portion of the vehicle 10. In FIG. 1, only a part of the body frame 13 is extracted and shown.

[Side bumper]
In the following, the configuration will be described focusing on the side bumper 14. Further, since the left and right side bumpers 14 are symmetrically configured, the left side bumper 14 will be described as an example in the following description.

The left and right side bumpers 14 shown in FIG. 1 each have a shape that curves from the front surface to the side surface of the vehicle 10 along the external shape of the vehicle 10. The left and right side bumpers 14 shown in FIG. 1 are each formed in an L-shape when viewed from the front such that the widthwise outer ends of the side bumpers 14 extend upward in a planar shape. ing.
Further, the left and right side bumpers 14 are provided with openings 15. The opening 15 is arranged at a position facing a lamp (not shown) attached to the body frame 13 (the rear surface side of the side bumper 14), and the light from the lamp (not shown) is passed through the opening 15. It is irradiated in front of the vehicle 10.

The left and right side bumpers 14 shown in FIG. 1 can be freely opened with respect to the body frame 13 in consideration of workability when performing operations such as adjustment, replacement, maintenance, and inspection of the lamp (not shown) described above. It is provided.
In a normal use state, the side bumper 14 is in a closed state shown by a solid line in FIG. 1, and is attached to the body frame 13 by a detachable locking mechanism (not shown) such as a bolt or a latch mechanism. Fixed.
On the other hand, when performing operations such as adjustment, replacement, maintenance, and inspection of lamps (not shown), the side bumper 14 shown in FIG. 1 moves to the outer side in the width direction of the vehicle 10 as indicated by reference numerals 14a and 14b. It is opened toward you. In FIG. 1, the side bumper 14a is in the middle of opening, the side bumper 14b is in the fully open state, and the side bumpers 14a and 14b are indicated by alternate long and two short dashes lines.

Therefore, the side bumper 14 is rotatably attached to the body frame 13 toward the outer side in the width direction of the vehicle 10 via a hinge mechanism (reference numeral 20 in FIGS. 2 to 6) described later. ..
FIG. 2 is an exploded perspective view of the structure for attaching the left side bumper 14 to the body frame 13 as seen from above the front surface of the vehicle 10.
A body-side bracket 30 is fixed to the widthwise outer end of the body frame 13. The body side bracket 30 shown in FIG. 2 is formed of a thin plate-shaped member extending in the vertical direction. The front surface side of the body side bracket 30 forms a surface extending in the vertical direction and the horizontal direction, and this surface functions as a fixing surface 31 for the hinge mechanism 20.

A side bumper side bracket 40 (shown by a broken line in FIG. 2) is fixed to an end portion of the side bumper 14 on the outer side in the width direction. The side bumper side bracket 40 shown in FIG. 2 is formed of an L-shaped thin plate-shaped member extending in the vertical direction. One surface 42 of this L-shape is fixed to the inner side surface of the side bumper 14, and the other surface 41 functions as a fixing surface 41 for the hinge mechanism 20. When the side bumper 14 is closed as shown in FIG. 1, the fixing surface 41 of the side bumper side bracket 40 is parallel to the fixing surface 31 of the body side bracket 30.

The hinge mechanism 20 is fixed to the body side bracket 30 and the side bumper side bracket 40, and rotatably supports the side bumper 14 with respect to the body frame 13.

Note that, in FIG. 1 described above, a body side bracket 30 fixed to the right end of the body frame 13 and a side bumper side bracket 40 fixed to the right side bumper 14 are drawn on the left side for convenience of drawing. The body side bracket 30 and the left side bumper side bracket 40 are not drawn.

FIG. 3 is a perspective view of the hinge mechanism 20 as seen from the arrow A in FIG. As shown in FIGS. 2 and 3, the hinge mechanism 20 includes a plurality of rotary shafts (two rotary shafts 21 and 23 in the example of FIGS. 2 and 3). A fixed side bracket 22 fixed to the body side bracket 30, a first movable side bracket 24 fixed to the side bumper side bracket 40, and a rotatably connected to the fixed side bracket 22 via a first turning shaft 21. The second movable side bracket 26 is rotatably connected to the first movable side bracket 24 via the second rotating shaft 23.

The fixed-side bracket 22, the first movable-side bracket 24, and the second movable-side bracket 26 shown in FIGS. 2 and 3 are thin plate-shaped members extending in the vertical direction.
The first rotary shaft 21 and the second rotary shaft 23 extend in the vertical direction and are parallel to each other.
The first rotation shaft 21 is provided between the side edge portion 22 a of the fixed side bracket 22 on the outer side in the width direction and the one side edge portion 26 a of the second movable side bracket 26. The second rotating shaft 23 is provided between the other side edge portion 26b of the second movable side bracket 26 and the widthwise inner side edge portion 24a of the first movable side bracket 24.

In addition, the fixed side bracket 22 has holes 22b through which first bolts (reference numeral 52 in FIGS. 5, 6, and 7 described later) for fixing the hinge mechanism 20 to the body side bracket 30 are inserted. It is provided in.
In addition, the first movable bracket 24 has two holes 24b through which a second bolt (reference numeral 53 in FIGS. 4 and 6 described later) for fixing the hinge mechanism 20 to the side bumper side bracket 40 is inserted. It is provided in.
Further, the fixed side bracket 22 and the first movable side bracket 24 respectively have holes 22c through which third bolts (reference numeral 51 in FIGS. 4 and 7 described later) for fixing the side bumper 14 in a closed state are inserted. , 24c are provided at upper and lower two places.

4 and 5 are perspective views of the left side bumper 14 attached to the body frame 13 via the hinge mechanism 20 as seen from above the front surface of the vehicle 10. FIG. 4 shows the side bumper 14 closed. FIG. 5 shows a state in which the side bumper 14 is being opened. 6 is a perspective view of the body side bracket 30 and the side bumper side bracket 40 as seen from the arrow B in FIG. The body frame 13 and the side bumper 14 in FIGS. 4 and 5 are drawn with a part thereof omitted.

As shown in FIGS. 4, 5, and 6, the fixed-side bracket 22 of the hinge mechanism 20 is fixed to the fixed surface 31 (see FIG. 2) of the body-side bracket 30 by the first bolt 52. Further, the first movable side bracket 24 and the side bumper side bracket 40 of the hinge mechanism 20 are fixed by the second bolt 53. Thereby, the side bumper 14 is rotatably attached to the body frame 13 via the hinge mechanism 20 toward the outer side in the width direction of the vehicle 10.
As shown in FIG. 6, the body side bracket 30 is provided with an insertion hole 30b for the first bolt 52 at a position corresponding to the hole 22b (see FIG. 3) of the fixed side bracket 22. Each of the insertion holes 30b shown in FIG. 6 is formed as an elongated hole extending in the left-right direction, and the mounting position of the hinge mechanism 20 with respect to the body side bracket 30 can be finely adjusted in the left-right direction.
Further, as shown in FIG. 6, the side bumper side bracket 40 is provided with an insertion hole 40b for the second bolt 53 at a position corresponding to the hole 24b (see FIG. 3) of the first movable side bracket 24. .. Each insertion hole 40b shown in FIG. 6 is formed as an elongated hole extending in the vertical direction, and the mounting position of the hinge mechanism 20 with respect to the side bumper side bracket 40 can be finely adjusted in the vertical direction.

As shown in FIG. 4, in the state where the side bumper 14 is closed, the hinge mechanism 20 is in a state in which the fixed side bracket 22, the second movable side bracket 26, and the first movable side bracket 24 are folded in a Z shape. become.
In the state where the side bumper 14 is closed, the hole 30c of the body side bracket 30 (see FIG. 6), the hole 22c of the fixed side bracket 22, the hole 40c of the side bumper side bracket 40 (see FIG. 6), The third bolt 51 may be inserted into the hole 24c of the first movable bracket 24, and the side bumper 14 may be fixed in a closed state by fastening the third bolt 51.
The periphery of the hole 22c of the fixed bracket 22 shown in FIG. 3 is formed thicker toward the front of the vehicle 10. This is for filling the gap between the fixed side bracket 22 and the first movable side bracket 24 in the closed state of the side bumper 14 shown in FIG.

Since the hinge mechanism 20 has the first rotating shaft 21 and the second rotating shaft 23 arranged as described above, when the side bumper 14 is rotated from the closed state shown in FIG. The hinge mechanism 20 can be opened forward by using the shaft 21 and the second rotation shaft 23 as an axis, and the side bumper 14 can be moved forward of the vehicle 10.
FIG. 5 shows a state in which the side bumper 14 is moved to the front of the vehicle 10. Thus, the side bumper 14 can be rotated to the fully open state (see reference numeral 14b in FIG. 1) while moving the side bumper 14 forward of the vehicle 10 (see reference numeral 14a in FIG. 1).

[Action and effect]
According to the present embodiment described above, when the side bumper 14 is rotated via the hinge mechanism 20, the side bumper 14 is moved toward the front in the vehicle 10 and is rotated outward in the width direction. Therefore, the side bumper 14 can be rotated with respect to the vehicle 10 with a sufficient gap between the side bumper 14 and other members arranged around the side bumper 14.
Therefore, while having a simple structure using the hinge mechanism having the two rotation shafts 21 and 23, when the side bumper 14 is opened, interference with other members arranged around the side bumper 14 is avoided. It will be easier.
As described above, in the side bumper structure of the present embodiment, when the side bumper 14 is opened, the turning shaft can be changed to the first turning shaft 21 and the second turning shaft 23, so that the side bumper can be widely opened. ..

FIG. 7 is a view of the rear surface side of the body side bracket 30 taken along the arrow C in FIG. As shown in FIG. 7, a plate-shaped member (blocking plate) 60 is disposed on the interior member 70 of the vehicle 10. The blocking plate 60 allows the side bumper structure such as the side bumper 14 and the body side bracket 30 to be formed. Is covered. In FIG. 7, a portion of the body side bracket 30 and the side bumper 14 covered by the blocking plate 60 is indicated by a broken line. As shown in FIG. 7, the blocking plate 60 is arranged close to the widthwise outer end of the side bumper 14. When the conventional hinge mechanism having only one rotation axis is applied, it is conceivable that the end portion of the side bumper 14 interferes with the blocking plate 60 when the side bumper 14 is opened. In this respect, according to the present embodiment, the side bumper 14 can be rotated toward the outer side in the width direction while moving to the front of the vehicle 10, so that the end portion of the side bumper 14 on the outer side in the width direction is covered with the blocking plate 60. Interfering with can be easily avoided.

[Modification]
In the above-described embodiment, the hinge mechanism 20 is fixed to the widthwise outer end of the side bumper 14, and the side bumper 14 is rotated toward the widthwise outer side of the vehicle 10 as an example. However, as another example, in the side bumper mechanism, the hinge mechanism 20 is fixed to the end portion of the side bumper 14 on the center side in the width direction, and the side bumper 14 is configured to rotate inward in the width direction of the vehicle 10. May be done. In this case, when the side bumper 14 is opened, it is possible to prevent the end portion of the side bumper 14 on the center side in the width direction from interfering with the center bumper 12, for example.

Further, the hinge mechanism 20 is not limited to the configuration having the two rotation shafts 21 and 23, but has a plurality of arbitrary rotation shafts such as a configuration having three rotation shafts and four rotation shafts. May be

10 vehicle 11 front bumper 12 center bumper 13 body frame 14 side bumper 20 hinge mechanism 21 first rotating shaft 23 second rotating shaft 22 fixed side bracket 24 first movable side bracket 26 second movable side brackets 22a, 24a, 26a, 26b Side edge portions 22b, 24b Holes 22a, 24c Hole 30 Body side bracket 31 Fixing surface 40 Side bumper side bracket 41 Fixing surface 30b, 40b Insertion holes 30c, 40c Hole 51 Third bolt 52 First bolt 53 Second bolt 60 Closure Board 70 Interior member

Claims (1)

A side bumper structure in a front bumper, which is provided on the front surface of a vehicle and includes a center bumper arranged in the center in the width direction of the vehicle and side bumpers arranged on the left and right of the center bumper,
A body side bracket fixed to the body frame of the vehicle,
A side bumper side bracket fixed to the side bumper,
A hinge mechanism that is fixed to the body side bracket and the side bumper side bracket and that rotatably supports the side bumper with respect to the body frame;
The hinge mechanism has a plurality of rotation shafts, and rotates while moving the side bumper in front of the vehicle.

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