JP3122053U - Wide side bumper - Google Patents

Abstract

[PROBLEMS] To improve the aesthetics, and by changing the shape of the sheet metal working members at the upper and lower sides of the side bumper, it is possible to produce side bumpers of various sizes, and the bolt-up structure improves the maintainability. In addition, a side bumper that can reduce the types of components is provided.
An intermediate sheet metal working member having a wide side bumper for inter-wheel base A extending in the longitudinal direction of the vehicle, an upper common mold member attached along an upper edge thereof, and a lower edge. The lower common mold 30 is attached. The upper common mold member 20 and the lower common mold member 30 are formed by using a common extruded mold member, and the intermediate sheet metal member 10 is attached to the stay 40 with a bolt 21 and a bolt 31, and the upper common mold member 20 and the lower common mold member 30. Rail grooves 24 and 34 are respectively formed and are attached to the stay 40 with bolts 201 and 301.
[Selection] Figure 1

Description

  The present invention relates to a wide side bumper for a wheel base and a wide side bumper for a rear overhang. More specifically, the present invention relates to a truck side bumper that can prevent entrainment and reduce air resistance during traveling.

  Between the front and rear wheels of a freight vehicle, it is obliged to install side bumpers to prevent people and vehicles from getting in from the side of the vehicle.

  As this side bumper, for example, as shown in FIG. 10, one or more bumpers 1 made of a pipe material are attached in the vertical direction in the longitudinal direction of the vehicle.

  Even with such a configuration of only the pipe material, its purpose can be achieved if it only prevents people, automobiles or motorcycles from being caught in the lower part of the vehicle.

  A side bumper with such a configuration is not aesthetically pleasing, and the air resistance received by the rear wheels when the vehicle is traveling at high speed increases, and does not lead to improved fuel efficiency.

For example, in the case of a side bumper made of a pipe material as shown in FIG. 10 or Japanese Utility Model Laid-Open No. 1-68270, a high-speed flow with a velocity v ₁ generated near the vehicle body and a wake (velocity v _{2) of the} front wheel 2 when traveling. ) And the wake which was at the speed v ₂ becomes a flow at a higher speed v ₃ (speed v ₂ <speed v ₃ <speed v ₁ ), and the turbulent flow having this speed v ₃ is the rear wheel. It hits 3.

Then, since air resistance is proportional to the square of speed, the air resistance which a rear-wheel part receives becomes large. As a wide side bumper aimed at reducing air resistance with an air rectifying panel, an air rectifying member mounting structure disclosed in Japanese Patent Application Laid-Open No. 2003-11855 is known.
Japanese Utility Model Publication No. 1-68270 JP 2003-11855 A

  The present invention has been made in view of the problems of the conventional side bumper made of a pipe material or a mold material, and improves the aesthetics of the side bumper, and the shape of the sheet metal working member constituting the upper and lower side portions of the side bumper. By changing it, it is possible to manufacture various sizes of side bumpers from small trucks to large trucks. Also, as a bolt-up structure, it is easy to replace each part and improve maintainability. It is an object of the present invention to provide a side bumper that can reduce the types of components to be configured, and to provide an economical side bumper that can further reduce the air resistance that a rear wheel of a truck receives by this configuration.

Therefore, the wide side bumper for the wheel base of the present invention is a horizontally long intermediate sheet metal working member facing in the longitudinal direction of the vehicle,
An upper common mold attached along the upper edge of the intermediate sheet metal working member;
A lower common mold attached along the lower edge of the intermediate sheet metal working member,
The upper common mold material and the lower common mold material are formed by using a common extruded mold material, the intermediate sheet metal working member is attached to the stay with a bolt, and the upper common mold material and the lower common mold material have their heads inserted into the rail grooves. It is attached to the stay with bolts.
In addition, the wide side bumper for rear overhang according to the present invention includes an intermediate sheet metal working member having a horizontally long taper shape in the longitudinal direction of the vehicle,
An upper common mold attached along the upper edge of the intermediate sheet metal working member;
A lower common mold attached along the lower edge of the intermediate sheet metal working member,
The lower edge of the intermediate sheet metal working member has a tapered shape that is inclined upward toward the rear of the vehicle, the upper common mold material and the lower common mold material are formed using a common extrusion mold material, and the intermediate sheet metal working member is a bolt. The upper common mold material and the lower common mold material are attached to a stay by a bolt having a head inserted into a rail groove.
Then, a front cover and a rear cover are attached to the front end portion and the rear end portion of the intermediate sheet metal working member of the wide side bumper for the wheel base, respectively. The front cover and the rear cover have the same cross-sectional shape in the straight and end cover materials.
A front cover is attached to the front end of the intermediate sheet metal working member of the wide side bumper for rear overhang, and a rear cover is attached to the rear end. The cross-sectional shape of the front cover, the straight part of the rear cover, and the end cover material is the same as that between the wheel bases.

  By adopting a material that can be processed from a plate between the upper common mold material and the lower common mold material, a wide side bumper for the wheelbase can be easily manufactured even if the vertical height of the bumper varies depending on the vehicle type. The wide side bumper for the taper-shaped rear overhang which cannot be manufactured only with the mold material can be manufactured.

  Further, in the case of a wide side bumper between wheel bases, the upper and lower mold members can be used as an upper mold member or a lower mold member by cutting the same extruded mold member into a desired length and using it in an upward and downward direction. Accordingly, since only one type of aluminum extrusion die is required, the structure can be simplified and the number of parts can be reduced, which is economical.

  The wide side bumper is composed of an intermediate sheet metal working member, upper and lower upper common mold members, lower common mold members, front and rear front covers, rear covers and the like, so that it becomes planar as a whole, and this regulates the air flow. For this reason, it is possible to avoid the wake generated at the rear of the front wheel from mixing with the high speed flow at the side of the vehicle and directly hitting the rear wheel. This action can reduce the air resistance acting on the rear wheels. Accordingly, the fuel efficiency of the truck can be improved.

  Furthermore, by providing the wide side bumper for the rear overhang, the effect of adjusting the air flow is increased together with the wide side bumper for the wheel base. In addition, since the lower edge of the intermediate sheet metal working member of the wide side bumper for rear overhang is tapered upward toward the rear of the vehicle, the tail of the truck comes into contact with the road when passing through an inclined road (slope) There is nothing.

This will be described with reference to the drawings.
The wide side bumper A according to the embodiment of the present invention is a wide side bumper between wheel bases provided between a front wheel and a rear wheel. As shown in FIG. 1, an intermediate sheet metal working member 10 that is horizontally long in the longitudinal direction of the vehicle, an upper common mold member 20 attached along the upper edge of the intermediate sheet metal working member 10, and an intermediate sheet metal working member 10 below The lower common mold member 30 attached along the edge is a main member.

  The intermediate sheet metal working member 10 is obtained by subjecting a metal sheet material such as an aluminum sheet material to sheet metal processing by press molding or the like.

  As the intermediate sheet metal working member 10, for example, a long aluminum sheet material cut into a predetermined size is used, and is formed into a longitudinal section hat shape. The intermediate sheet metal working member 10 may be an extrusion mold material, but is preferably molded from a sheet material in consideration of ease of manufacture or ease of modification of the vertical height dimension.

  The intermediate sheet metal working member 10 has an upper edge 11 and a lower edge 12 parallel to each other (FIG. 2), and a side surface having a long rectangular shape in the front-rear direction (FIG. 3).

  A common cover C is attached to each of the front end portion and the rear end portion of the intermediate sheet metal working member 10. The common cover C includes end cover members 13 and 14 and a corner member 25. As shown in FIG. 6, the end cover members 13 and 14 include mounting ribs 15 (see FIG. 6B). . The mounting rib 15 may be an end mounting member 16 mounted on the end of the intermediate sheet metal working member 10 (FIG. 6A), or a mounting flange 100 formed by bending (FIGS. 6C and 6D). )) With a bolt 17 (FIG. 6B) or the like.

  The upper mold material 20, the lower mold material 30, and the end cover material 13 (14) are made of, for example, an aluminum extrusion mold material, and are used by cutting a long extrusion mold material into a predetermined length.

  The upper edge 11 and the lower edge 12 of the intermediate sheet metal working member 10 are attached to the stay 40 with bolts 21 and bolts 31, respectively. The upper common mold member 20 is attached such that its upper edge 22 is bent toward the vehicle (FIG. 2), and its lower edge 23 is partially overlapped with the top of the intermediate sheet metal working member 10. The inner side of the upper common mold member 20 is formed so as to come into contact with the upper L-shaped part (edge part of the hat) of the intermediate sheet metal working member 10. A rail groove 24 is formed in the upper common mold member 20 and is attached to the stay 40 by a bolt 201 as shown in FIG.

  The lower common mold member 30 is formed by using an extruded mold member common to the upper common mold member 20 and is attached to the upper common mold member 20 at a symmetrical position. The corner member 25 is, for example, an aluminum casting or a synthetic resin molded product (FIGS. 1 and 7), and is configured to cover the front and rear ends of the upper common mold member 20 and the front and rear ends of the lower common mold member 30 thereby. The The corner member 25 is attached to the upper end portion or the lower end portion of the intermediate sheet metal working member 10 with a bolt or the like (not shown).

  The stay 40 is fixed to a cross member 80 fixed to a side rail 90 (FIG. 1) of the vehicle with bolts. The stay 40 is coupled to the upper common mold member 20 by a bolt 201 (FIG. 2) having a head inserted in the rail groove 24, and the lower common mold member 30 is also coupled by a bolt 301 having a head inserted in the rail groove 34. Combined with. When the heads of the bolts 201 and 301 are inserted into the rail grooves 24 and 34, the rail grooves are prevented from rotating.

FIG. 4 shows a wide side bumper B for rear overhang attached to the rear part of the rear axle of the vehicle. As shown in FIG. 5A, the upper portion is horizontal, but has a tapered shape in which the lower edge is inclined upward from the front to the rear of the vehicle.
The wide side bumper B for rear overhang does not necessarily need to be attached for legal purposes from the viewpoint of the original purpose of the side bumper, but the effect is remarkable when it is attached from the viewpoint of reducing air resistance.

  The wide side bumper B for rear overhang basically has the same configuration as the wide side bumper A for inter-wheel base. That is, it consists of an intermediate sheet metal working member 50, an upper common mold member 60 attached to the upper edge thereof, and a lower common mold member 70 attached to the lower edge thereof.

  In the embodiment shown in FIG. 4, the intermediate sheet metal working member 50 has a hat shape in cross section, and the front shape is trapezoidal (FIG. 5A). The upper common mold member 60 has the same shape as the upper common mold member 20 (FIG. 1), but the lower common mold member 70 has front and rear ends 71 and 72 (see FIG. 5A) of the intermediate sheet metal working member 50. )) Is cut to fit.

  The intermediate sheet metal working member 50 is attached to the stay 40 with bolts 600 and 700 (FIG. 5B). The upper common mold member 60 and the lower common mold member 70 are formed by using a common extruded mold member, and are attached to the stay 40 by a bolt 61 (73) having a head inserted into the rail groove 60b (70b) (FIG. 5B). )reference). And the front cover D (FIG. 4) is attached to the front-end part of the said intermediate sheet metal processing member 50, and the rear cover E is attached to a rear-end part. The common cover C and the front cover D are preferably common.

  The embodiment shown in FIGS. 1 to 7 has been described above. These intermediate sheet metal working members 10 were molded products having a hat-shaped cross section. However, it does not necessarily have a hat-shaped cross section, and shapes such as those shown in FIGS. 8A to 8E are conceivable. In the case of a hat type as shown in FIGS. 8 (a) and 8 (e), a cross-section C shape as shown in FIG. 8 (b), or a cross-sectional shape as shown in FIG. 8 (c) or as shown in FIG. As such, the plate itself may be used.

  FIG. 9 shows an aspect of the air flow in the vehicle side portion when the wide side bumper A for the wheel base and the wide side bumper B for the rear overhang of the present invention are attached. FIG. 10 shows the air flow when the conventional side bumper 1 is provided.

As shown in FIG. 10, when a conventional side bumper is attached, if there is a fast flow velocity v _{1 in the} vicinity of the vehicle body, it mixes with the wake v ₂ due to the front wheel, and the flow v _{3 at} a higher speed than the wake flows into the rear wheel 3. This causes the air resistance to increase.

However, in the case of FIG. 9, the wide wheel-side bumper A between the wheel bases of the present invention separates the wake v ₂ of the front wheels and the high-speed flow v ₁ near the vehicle body to some extent, and reduces the flow velocity v ₃ immediately before the rear wheels. I can do it. For this reason, air resistance acting on the rear wheel 3 is reduced, and as a result, fuel efficiency can be improved.

Further, by adding a wide side bumper B for rear overhang, a fast flow v ₁ near the vehicle body is guided to the side bumper A and the side bumper B for rear overhang, thereby enhancing the effect of the wheel base side bumper A. be able to.

It is a perspective view of the wide side bumper A for wheel bases concerning the embodiment of the present invention. 2 is a longitudinal sectional view of a side bumper A. FIG. 2 is an end view and a front view of the intermediate sheet metal working member 10. FIG. It is a perspective view of the wide side bumper B for rear overhangs. (A) is an end view and a perspective view of an intermediate sheet metal working member constituting the wide side bumper B for rear overhang, and (b) is a sectional view taken along the line CC in FIG. (A) shows an end attachment member (16), (b) shows a state in which the end cover member 13 (14) is attached via the end attachment member (16), and (c) shows an attachment flange ( 100) and (d) are perspective views showing a state in which the end cover member is attached via the attachment flange (100). It is sectional drawing which shows the state which attached the corner member (25) to the edge part of an upper common mold material. It is sectional drawing which shows the various modifications (a)-(e) of the intermediate sheet metal processing member which comprises a side bumper. It is a perspective view which shows the aspect of the airflow of the vehicle side part which attached the side bumper A. FIG. It is a perspective view which shows the aspect of the air flow by the side of the vehicle which attached the conventional pipe side bumper 1. FIG.

Explanation of symbols

A Wide wide side bumper for wheelbase B Wide wide bumper for rear overhang C Common cover D Front cover E Rear cover
10 (50) Intermediate sheet metal parts 11 Upper edge
12 Lower edge 13 (14) End cover material
15 Mounting rib 16 End mounting member
17 Bolt 20 (60) Upper common material
21 bolt 22 upper edge
23 Lower edge 24, 34 Rail groove
25 Corner member 30 (70) Lower common material
100 Mounting flange

Claims (4)

An intermediate sheet metal working member that is horizontally long in the longitudinal direction of the vehicle,
An upper common mold attached along the upper edge of the intermediate sheet metal working member;
A lower common mold attached along the lower edge of the intermediate sheet metal working member,
The upper common mold material and the lower common mold material are formed by using a common extruded mold material, the intermediate sheet metal working member is attached to the stay with a bolt, and the upper common mold material and the lower common mold material have their heads inserted into the rail grooves. Wide side bumper between wheelbases, which is attached to the stay with bolts. An intermediate sheet metal working member having a horizontally long taper shape in the longitudinal direction of the vehicle,
An upper common mold attached along the upper edge of the intermediate sheet metal working member;
A lower common mold attached along the lower edge of the intermediate sheet metal working member,
The lower edge of the intermediate sheet metal working member has a tapered shape that is inclined upward toward the rear of the vehicle, the upper common mold material and the lower common mold material are formed using a common extrusion mold material, and the intermediate sheet metal working member is a bolt. A wide side bumper for rear overhang, which is attached to a stay, and the upper common mold member and the lower common mold member are attached to the stay by a bolt having a head inserted into a rail groove.   The wide side bumper between wheel bases according to claim 1, wherein a common cover is attached to each of a front end portion and a rear end portion of the intermediate sheet metal working member. The wide side bumper for a rear overhang according to claim 2, wherein a front cover is attached to a front end portion of the intermediate sheet metal working member, and a rear cover is attached to a rear end portion.

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