JP3539466B2 - Front bumper - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement of a front bumper having a net.
[0002]
[Prior art]
As a conventional front bumper, in a grill mounting portion disclosed in Japanese Utility Model Laid-Open No. 3-280561, a projection is provided on both ends of a lower surface of a front grill, a plurality of claws are provided on an upper surface, and a projection provided on a lower surface of the grill is connected to a front bumper. It is inserted vertically into the hole, and a plurality of claws provided on the upper surface are locked. The front bumper disclosed in Japanese Utility Model Laid-Open Publication No. 3-34913 is a bumper in which a grill is integrally formed, and a rib is provided on the back surface of the bumper to shut off hot air from the engine and rectify the flow of air to the air condenser. An arrangement for doing so is disclosed.
[0003]
[Problems to be solved by the invention]
In the conventional front bumper disclosed in Japanese Utility Model Laid-Open No. 3-280561, projections are provided at both ends of a lower surface of a grill, and a plurality of claws are provided on an upper surface of the grill to be mounted on the front bumper. However, a grill having a rigidity itself, such as a grill, is good. However, when a grill having a small rigidity, such as a net, is fixed with two projections, it cannot be firmly fixed. In addition, this grill must be installed by inserting the projection provided on the lower surface of the grill into the hole made in the front bumper from above vertically and engaging the claw, so that the height of the projection is equal to the height of the projection. The height of the opening is required, there is a gap between the grill and the opening, and there is a problem to be improved in terms of appearance.In addition, the projection must be inserted from the vertical direction into the hole made in the front bumper. This makes it difficult to visually check the holes, and the grill cannot be easily attached.
[0004]
In addition, when mounting is made only by the projections and claws, it cannot be firmly mounted especially on a material having a low rigidity such as a net, so the number of claws must be increased. Then, when this net is formed by a rigid resin or the like, an undercut portion is formed in the claw portion, so a moving mold having a complicated structure equal to the number of claws is required, and it becomes an expensive mold. Not preferred.
[0005]
The present invention provides a low-cost mold with a small rigidity, such as a net, which can be firmly mounted, facilitates the mounting, improves the mounting workability, and reduces the number of claws. This is to provide a front bumper.
[0006]
[Means for Solving the Problems]
Means grasped from the description of claim 1 according to the present invention for solving the above problem is that, in a front bumper provided with a net, a large number of projections are provided on the lower surface of the net, and the projections on both sides of the projections are different from each other. of longer than projections, whereas a plurality of pawls inward net on the upper surface of the net, the net mounting surface of the front bumper, the plurality of the net together with projections of the net providing holes for engagement A locking portion for locking the claw of the front bumper, the front side of the front bumper is opened at a stepped portion having a lower side at the rear side, and the projection is opened so that the projection can be inserted from a horizontal direction and a vertical direction. The front hole wall surface is formed such that the side surface of the projection of the net abuts while the flange portion of the net is seated on the seating surface of the hole. And wherein the flange portion of the net rear hole wall so as to abut is formed.
[0007]
Next, the means grasped from the description of the second aspect is the invention according to the first aspect , wherein the net attached to the front bumper is located on the engine side and near the side of the radiator. As described above, the rib is integrally formed on the back surface of the net.
[0008]
Next, how the problem is solved by the present invention as understood from the description of each claim will be described. First, according to the present invention as understood from the first aspect, a large number of projections are provided on the lower surface of the net, inserted into holes formed in the front bumper, and a net having a small rigidity is firmly attached. Then, by making the projections on both sides of the projection longer than the other projections, inserting the projections on both sides of the long side into the hole while visually observing the projections on the both sides, and inserting the projections on both sides of the long side into the hole, Guide the projection and insert it into the hole.
[0009]
On the other hand, a plurality of claws are provided on the upper surface of the net toward the inside of the net, and the claws are locked to the locking portions provided on the front bumper, so that the engaging force of the claws is stronger because the net itself is not rigid. Therefore, it is difficult to disengage the claws only by pulling the net, and since the lower end of the net is stopped by many projections, it does not come off just by pulling the net, Reduce the number of nails.
[0010]
Also, the holes provided on the front bumper for locking the projections provided on the lower surface of the net are opened at the steps where the front side of the front bumper is low and the rear side is high, and the holes where the projections can be inserted from diagonally forward are Open the holes in the vertical direction so that the protrusions can also be inserted from the vertical direction, and insert the protrusions into the holes diagonally forward while tilting the net diagonally forward and visually observing the protrusions and holes. And the pawl is engaged with the locking portion. Thus, the net can be attached without providing a gap between the opening for attaching the net and the net . Furthermore, in a state where the flange portion of the net is seated on the seating surface of the hole, the front hole wall surface is formed so that the side surface of the projection of the net abuts, and the rear hole wall surface is formed such that the flange portion of the net abuts. Therefore, the movement of the lower end of the net relative to the front bumper in the front-rear direction of the vehicle is restricted.
[0011]
Next, in the present invention as understood from the description of claim 2, in the net mounted on the front bumper, a rib is integrally formed on the back surface of the net so as to be located on the engine side and near the side of the radiator. By increasing the rigidity of the net, the net can be firmly attached to the front bumper, and the air from the engine side is shut off, so that heat exchange of the radiator is performed efficiently.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention, which is understood from the description of the above claims, will be described. First, an embodiment of the present invention which is understood from the description of claim 1 is a front bumper 2 provided with a net 1 as shown in FIG. Are provided. Then, the protrusions 3 on both sides are made longer than the other protrusions 4. On the other hand, a plurality of claws 5 are provided on the upper surface of the net 1 toward the inside of the net 1. As shown in FIG. 6, a hole 6 with which the projections 3 and 4 of the net 1 are engaged is provided on the mounting surface of the front bumper 2 on which the net 1 is attached, and a locking portion 7 for locking the claw 5 is provided.
[0013]
In addition, in the portion of the hole 6 provided in the front bumper 2 for locking the projections 3 and 4 provided on the lower surface of the net 1, the front side 201 of the front bumper 2 is lowered and the rear side 202 is raised as shown in FIG. The step H1 is opened to open a hole H2 into which the projections 3, 4 can be inserted obliquely from the front, and the hole W1 is opened in the vertical direction so that the projections 3, 4 can be inserted from the vertical direction.
[0014]
Next, according to the embodiment of the present invention as understood from the description of the second aspect, as shown in FIG. 9, the net 1 mounted on the front bumper 2 is provided on the engine side and on the entire surface of the radiator. A rib 10 is provided on the back surface of the net 1 by integral molding so as to be located near the side of the air condenser 9.
[0015]
Hereinafter, embodiments of the present invention will be described in more detail. FIG. 10 is a cross-sectional view taken along line AA of FIG. 7 and shows the entire front bumper 2. The front bumper 2 has a net 1 attached thereto. I have. A rib 10 is integrally formed on the back surface of the net 1 with the net 1 mounted on the front bumper 2 so as to be located on the engine side and near the side of the air condenser 9 provided on the entire surface of the radiator. It is provided in.
[0016]
Next, each part will be described in detail. FIG. 1 is a perspective view showing the back surface of the net 1 (illustration of the net pattern is omitted). The net 1 has a flange portion 101 formed on the outer periphery thereof to give a rigidity as a whole. Like that. A large number of projections 3 and 4 are provided on the lower end of the net 1 and on the flange portion 101, and the projections 3 on both sides are longer than the other projections 4. A plurality of claws 5 are provided on the edge of the upper surface flange portion 101 of the net 1 toward the inside of the net 1. The rib 10 is formed integrally with the net 1.
[0017]
Reference numeral 8 denotes a license attachment portion, which is a non-net portion as shown in FIGS. 6 and 7, and is formed so as to protrude toward the surface of the net 1. The provision of the license attachment portion 8 also increases the rigidity of the net 1. Further, a fixing portion 801 is formed so as to protrude from the back surface of the license attaching portion 8, and a hole 802 is formed in the fixing portion 801. On the other hand, as shown in FIG. 6, the front bumper 2 is provided with a hole 6 into which the projections 3 and 4 are inserted and a locking portion 7 with which the claw 5 is locked.
[0018]
As shown in FIG. 2, the hole 6 opens a step H1 in which the front side 201 of the front bumper 2 is low and the rear side 202 is high, and opens a hole H2 into which the projections 3 and 4 can be inserted obliquely from the front. 4 have an opening W1 in the vertical direction so that they can be inserted from the vertical direction. The seating surface 203 of the hole 6 is flat so that the flange portion 101 of the net 1 can be seated. In this state with the flange portion 101 seated, the front hole wall surface 204 is positioned so that the side surface of the projection 3 abuts. There together is formed, the rear side of the flange portion 101 so as to abut the rear hole wall 205 is formed. In this manner, by forming the front hole wall surface 204 and the rear hole wall surface 205, the lower end of the net 1 is locked from moving in the direction of the arrow while the flange portion 101 is seated on the seat surface 203, The hole 6 is closed by the flange portion 101, so that the hole 6 cannot be seen from the outside to improve the appearance.
[0019]
Next, the claw 3 will be described with reference to FIG. 2. The tip of the claw 3 has an inclined guide surface 301, which is inclined so as to be guided by the rear hole wall surface 205. . 3, the guide surface 401 is formed in the same direction as the guide surface 401 of the claw 3 so that the guide surface 401 is guided by the front hole wall surface 204. Face. In addition, as shown in FIG. 4, the length L2 of the projection 3 is longer than the length L1 of the projection 4 shown in FIG.
[0020]
FIG. 8 is an exploded perspective view showing a state where the license plate 11 and the net 1 are attached to the front bumper 2 and the front bumper 2 is attached to the vehicle body 12. FIG. 9 is a partially enlarged view of the attachment portion. The license attachment portion 8 is fixed to the front bumper 2 together with the license plate 11 (11 'is a foreign license plate) by bolts 14 and speed nuts 13. Therefore, the net 1 is fixed to the front bumper 2 via the license attachment portion 8, so that the number of claws 5 can be reduced.
[0021]
In addition, since the license plate 11 and the license plate 11 are fastened together, the license plate 11 is fixed to the front bumper 2 by using one bolt 14 necessary for mounting the license plate 11. The fixing unit 801 by a bolt 15 and a nut 16 so as to fasten to the vehicle body 12. Also in this case, similarly, the net 1 is attached to the vehicle body 12 via the fixing portion 801 using bolts 15 necessary for attaching the front bumper 2 to the vehicle body. Further, the tip of the rib 10 is in a state of being pressed against the rubber 17.
[0022]
Next, the operation will be described. In Figure 2, the full Rontobanpa second portion the net 1 is mounted, a step H1 is provided between the rear side 202 and front side 201, opens the step H1 is the hole H 2, in a direction perpendicular to the hole W 1 Since the holes 6 are formed by opening, the flanges 101 of the net 1 can be inclined forward like 101a to insert the projections 3 and 4 into the holes 6 as shown in FIGS. . When the projections 3 and 4 are inserted into the hole 6, the length L2 of the projection 3 can be increased and the flange portion 101 (net 1) can be inserted while tilting forward. Can be performed while visually observing the positional relationship between. Then, the long protrusion 3 is inserted into the hole 6, and the flange portion 101 (net 1) is raised to 101a to 101c, so that the short protrusion 4 is guided by the long protrusion 3, and the protrusion 4 is inserted into the hole 6. Inserted.
[0023]
In addition, the protrusions 3 and 4 can be inserted into the holes 6 by raising the flange portion 101 (net 1) to 101a to 101c, so that the opening H1 opened in the front bumper 2 as shown in FIG. The claw 5 can be locked to the locking portion 7 without any allowance, and the gap between the net 1 and the opening H1 can be eliminated.
[0024]
Also, the license mounting portion 8 provided on the Internet 1, so to form a fixing portion 801 to the license mounting portion 8, the net 1 together with the license plate 11 can be fixed to the full Rontobanpa 2 via the license mounting portion 8 Further, the net 1 can be fixed to the vehicle body together with the front bumper 2 via the fixing portion 801, so that the number of claws 5 can be reduced, and the bolt 14 and the front bumper 2 for attaching the license plate 11 are provided. By using the bolts 15 for mounting, the labor and the number of parts for mounting can be reduced.
[0025]
Further, since the rib 10 is provided on the engine side and near the side of the radiator, the rib 10 itself increases the rigidity of the net 1 and, as shown by the arrow in FIG. 9, shuts off hot air from the engine side. In addition, the air flowing into the air condenser 9 (radiator) can be rectified to improve the heat exchange efficiency.
[0026]
【The invention's effect】
According to the present invention, which is understood from the detailed description of the invention based on the description of claim 1 as described in detail above, a number of projections are provided on the lower surface of the net, and the projection is inserted into a hole formed in the front bumper, and the rigidity is improved. Since a net having a small size is firmly attached, the number of claws can be reduced, and a mold for forming and processing the net can be made inexpensive. Then, the projections on both sides of the projections are longer than the other projections, and the projections on the long sides can be inserted into the hole while visually observing the projections on the both sides. By guiding other projections and inserting them into the holes, assemblability can be improved.
[0027]
On the other hand, a plurality of claws are provided on the upper surface of the net toward the inside of the net, and the claws are locked to the locking portions provided on the front bumper, so that the engaging force of the claws is stronger because the net itself is not rigid. Therefore, it is difficult to disengage the claws only by pulling the net, and the lower end of the net is stopped by a large number of protrusions, and the net cannot be disengaged only by pulling the net. The number can be reduced and an inexpensive mold can be made.
[0028]
Also, the holes provided on the front bumper for locking the projections provided on the lower surface of the net are opened at the steps where the front side of the front bumper is low and the rear side is high, and the holes where the projections can be inserted from diagonally forward are Open the holes in the vertical direction so that the protrusions can also be inserted from the vertical direction, and insert the protrusions into the holes diagonally forward while tilting the net diagonally forward and visually observing the protrusions and holes. By engaging the claws with the locking portions in such a way that the hooking occurs, the assembling work is facilitated, and the net can be attached without providing a gap between the opening for attaching the net and the net. As a result, the appearance can be improved.
Further, in a state where the flange portion of the net is seated on the bearing surface of the hole, the front hole wall surface is formed so that the side surface of the projection of the net abuts, and the rear hole wall surface is formed such that the flange portion of the net abuts. Therefore, the movement of the lower end of the net relative to the front bumper in the front-rear direction of the vehicle can be restricted, and the net can be firmly attached to the front bumper.
[0029]
Next, according to the present invention, which is understood from the detailed description of the invention based on the description of claim 2, in the net mounted on the front bumper, the net is located on the engine side and near the side of the radiator. As a result, the ribs are integrally formed on the back side of the net to increase the rigidity of the net, and the net can be firmly attached to the front bumper, while blocking the air from the engine side, improving the heat exchange efficiency of the radiator. Can also be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a back surface of a net according to one embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of a hole formed in a front bumper according to one embodiment of the present invention.
FIG. 3 is a partially longitudinal sectional view showing a state in which a projection provided on a net is inserted into a hole in FIG. 2;
FIG. 4 is a partially longitudinal sectional view showing a state where a projection provided on a net is inserted into a hole of FIG. 2;
FIG. 5 is a vertical sectional view taken along line BB of FIG. 7;
FIG. 6 is a perspective view showing a state in which the net of FIG. 1 is mounted on a front bumper .
7 is a perspective view showing a state in which the net of FIG. 1 is mounted on a front bumper . FIG. 8 is an exploded perspective view showing a state in which the net shown in FIG. 1 and the front bumper shown in FIG. 6 are assembled to a vehicle body. is there.
FIG. 9 is a cross-sectional view showing a main part of the present invention.
FIG. 10 is a transverse sectional view taken along line AA of FIG. 7;
[Explanation of symbols]
1 Net 2 Front bumper
201 Front
202 Rear 3 Projection 4 Projection 5 Claw 6 Hole 7 Locking part 8 License attachment part
801 Fixed part
10 ribs

Claims (2)

In front bumper with a net, a plurality of protrusions formed on the lower surface of the net, on both sides of the projection longer than the other projections of該Tokki, whereas a plurality of pawls inward net on the upper surface of said net A hole for engaging the projection of the net is provided on the net mounting surface of the front bumper, and a locking portion for locking the plurality of claws of the net is provided . The hole is formed by lowering the front side of the front bumper. A stepped portion with a raised side is opened so that the projection is opened so as to be inserted from the horizontal direction and is also opened so as to be inserted from the vertical direction, and the flange portion of the net is a seat of the hole. in a state of being seated on the surface, the side surface of the projection of the net forward hole wall is formed so as to abut the flange portion of the net rear hole wall so as to abut is formed Front bumper features. Front bumper according to claim 1, characterized in that the in the net of the mounted state in the front bumper, is integrally formed ribs on the back of the net so as to be positioned on the side near the A and and radiator and the engine side.

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