JPH0715826Y2 - Air resistance reduction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an air resistance reducing device for use in a truck or the like.

[Conventional technology]

Conventionally, as this type of air resistance reducing device,
Japanese Laid-Open Publication No. 53-45367 and the like are known.

In this conventional structure, a luggage box higher than the roof upper surface of the driver's cab is mounted behind the driver's cab, and a wind guide having a rear upper slope front wall portion is installed on the roof upper surface by a mounting device. Is.

[Problems that the device tries to solve]

However, the above-described mounting device having the conventional structure has a disadvantage that the air guide cannot be mounted properly in some cases.

[Means for Solving the Problems]

The purpose of the present invention is to eliminate these inconveniences, and the gist thereof is to provide a wind guide 5 on the upper surface of the roof 3 of the cab 2.
When the roof 3 is installed, the rear portion of the roof 3 is provided with the pivoting portions 8 arranged side by side in the left-right direction near the upper edge of the back surface of the air guide body 5, and the pivoting portions 8 form the middle rod portion 9a of the upper support rod 9. Rotatably attached, the front support rod 10 is erected near the lower edge of the air guide body 5,
A rear support rod 13 is arranged behind the front support rod 10, and the rear support rod 13 is provided.
A connecting rod 14 that can be connected to and fixed to the side rod portion 9b of the upper support rod 9 in a stretchable manner is provided on 13 and a total of four connecting members 20 are provided on the left and right and front and rear of the operator's cab 2. Mounting frames 16 that are connected to 20 and 20 and have horizontal reinforcing bar rods 19 in the front-rear direction are erected so as to be opposed to each other on the left and right, and the mounting frames 16 are inward from the upper front-rear position. The mounting rods 17 of the four projecting projections are connected and fixed to the left and right side portions of the front support rod 10 and the rear support rod 13 so as to be extendable and rotatable, and the front support rod 10 is attached. The present invention relates to an air resistance reducing device in which a rod portion 17 penetrates a side surface of a wind guide 5, and the penetrating portion is supported by a flange portion 11 fixed by a bolt 12.

[Action]

The middle rod portion 9a is rotatably attached to the upper support rod 9 by a plurality of pivotally attached portions 8 arranged in parallel on the upper rear surface of the air guide body 5, and the rear support rod 13 is connected to the side rod portion 9b of the upper support rod 9. Connect and secure the rod 14,
The attachment rods 17 of the attachment frame 16 are connected and fixed to the left and right sides of the front support rod 10 and the rear support rod 13, the wind guide 5 is placed on the upper surface of the roof 3, and the lower portions of the left and right attachment frames 16 are placed in the cab 2 Left and right rain gutters 25
It is fixed by a connecting tool 20.

When the space between the upper support rod 9 and the connecting rod 14 is expanded and contracted, the upper support rod 9
The middle rod portion 9a rotates with respect to the pivotal attachment portion 8 and the rear support rod 13 rotates with respect to the mounting rod portion 17 of the mounting frame 16, so that the wind guide member 5
Rotates about the connection position between the front supporting rod 10 and the mounting rod portion 17, the mounting angle of the air guide body 5 is variable, and the mounting rod portion 17 of the mounting frame 16 moves the front supporting rod 10 and the rear supporting rod 13 together. When it is expanded or contracted, it can correspond to the size between the rain gutters 25 on the left and right sides of the roof 3 of the cab 2.

〔Example〕

1 to 7 show an embodiment of the present invention, in which 1 is a freight vehicle, and a cargo box 4 higher than a roof 3 upper surface of the cab 2 is mounted behind a cab 2 of the freight vehicle 1. ing.

Reference numeral 5 denotes a wind guide, and the wind guide 5 is a rear upper slope front wall portion 6
And the left and right side wall portions 7 are formed into a substantially cross-section, and the wind guide 5
On the upper part of the back surface of the rear side, three pivotally-attaching parts 8, in this case, three substantially U-shaped holding metal fittings are provided, and by the three pivotally-attaching parts 8, the middle rod part 9a made of a pipe-shaped upper support rod 9 is provided as a wind guide. 5 is rotatably provided on the back surface of the wind guide 5, and a front support rod 10 made of a pipe is installed between the lower inner surfaces of the left and right side walls 7 of the air guide body 5 by a flange portion 11 and a mounting bolt 12, and the pipe is provided behind the front support rod 10. The rear supporting rod 13 is provided, and two connecting rods 14 that can be inserted into the side rod portion 9b of the upper supporting rod 9 in a stretchable manner are projectingly provided on the rear supporting rod 13, and the connecting rod 14 and the side rod portion are provided.
9a and 9a can be fixed by bolts 15 so that their positions can be adjusted.

Reference numeral 16 denotes a mounting frame, and the mounting frames 16 are a pair of left and right symmetrical members, and the front supporting rod 10 and the rear supporting rod 13 are provided at the front and rear portions of the mounting frame 16.
Rods that can be connected to both left and right ends of the rotatably
17 is formed so as to face inward, and the mounting rod portion 17, the front support rod 10 and the rear support rod 13 are fixed by bolts 18 so that their positions can be adjusted,
Also, between the front and rear of the upper part of the mounting frame 16, that is, the front and rear mounting rods.
A horizontal reinforcing rod portion 19 is provided between the portions 17.

20 is a connecting tool, and the connecting tool 20 is provided at the front and rear parts of the mounting frame 16, and in this case, bolts 21 are projectingly provided on the outer surfaces of the front and rear parts of the mounting frame 16, and each of the bolts 18 is tightened in a U shape. Insert the frame 22,
Two tightening bolts 23 are provided on the tightening frame 22, and the bolts 21 and the nuts 24 of the tightening bolts 23 can be attached to the rain gutter 25.

Since this embodiment has the above-described structure, the baffle 5 can be installed by fixing the mounting frame 16 to the left and right rain gutters 25 of the operator's cab 2 with the connecting tool 20, and the connecting rod 14 of the rear support rod 13 and the upper part. The middle rod portion 9a of the upper support rod 9 for adjusting the expansion and contraction of the side rod portion 9b of the support rod 9 is rotated with respect to the pivot portion 8, and the rear support rod 13 is attached to the mounting frame.
The wind guide 5 is rotated with respect to the mounting rod 17 of the 16 and the front support rod 10
By rotating about the connection position between the mounting rod 17 and the mounting rod 17, the mounting angle of the air guide body 5 can be easily changed, and the mounting frame can be changed.
By expanding and contracting the 16 mounting rods 17 with respect to the front supporting rod 10 and the rear supporting rod 13, the size between the left and right rain gutters 25 can be accommodated, and the wind guide 5 can be easily attached to various vehicle types. Further, since the upper support rod 9 is made flat and the middle rod portion 9a is attached to the upper part of the back surface of the air guide body 5 by a plurality of pivotally attached portions 8, the air guide body 5 can be reinforced and the air resistance applied to the air guide body 5 can be increased. You can receive it well and you can improve the safety.

[Effect of device]

According to the present invention, as described above, a wind guide can be installed by fixing the mounting frame to the left and right rain gutters of the driver's cab with the connecting member, and the connecting rod of the rear supporting rod and the side rod of the upper supporting rod can be expanded and contracted. Then, the middle rod portion of the upper support rod rotates with respect to the pivotal attachment portion, the rear support rod rotates with respect to the mounting rod portion of the mounting frame, and the wind guide member connects the front support rod and the mounting rod portion. It is possible to easily change the mounting angle of the wind guide by rotating around the center of the air guide, and by expanding and contracting the mounting rod of the mounting frame with respect to the front support rod and the rear support rod, the space between the left and right rain gutters The size can be adapted, the air guide can be easily attached to various vehicle types, and the upper support rod is made flat so that the middle rod is attached to the upper part of the back surface of the air guide by a plurality of pivotally attached portions. The wind body can be reinforced, the air resistance applied to the wind guide body can be well received, and the safety can be improved. That.

In particular, the present invention has a structure in which the middle rod portion of the flat upper support rod is rotatably attached by a plurality of parallel pivoting portions, so that the back side of the roof top, which receives strong wind pressure, extends in the width direction. Since it is supported by the center rod part that is erected by a plurality of parallel pivotal parts, it is an air resistance reducing device with extremely strong bearing strength.

Further, the present invention has a structure in which the side rod portion and the connecting rod of the upper support rod are connected and fixed in a stretchable manner, and the mounting rod portion and the front support rod and the rear support rod are also connected and fixed in a stretchable manner. Even roofs with different dimensions can be reliably attached so as to effectively exert the effect as a wind guide.

In addition, the present invention provides a total of four connecting tools that can be fixed to the left and right rain gutters of the cab, and is connected to the front and rear connecting tools, and has a horizontal reinforcing bar rod in the front-rear direction. A total of four body-mounting rods are provided on the left and right so as to face each other, and the four mounting rods projecting inward from the front and rear positions of the upper and lower sides of the front and rear supporting rods are attached to the front and rear supporting rods. Since it is configured to be connected and fixed so that it can be expanded and contracted and rotated, and the mounting rod portion that connects to this front support rod penetrates the side surface of the air guide body, and this penetrating portion is supported by the flange portion that is fixed with bolts. It is an air resistance reduction device that is firmly and stably fixed to the roof and can withstand high speeds.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a side view, Fig. 2 is a rear view, Fig. 3 is a plan view, Fig. 4 is a partial plan view, and Fig. 5 is a partial longitudinal sectional view. 6 is an overall side view, and FIG. 7 is a partial perspective view. 2 ... Driver's cab, 3 ... Roof, 5 ... Wind guide, 8 ... Pivot,
9 ... Upper support rod, 9a ... Middle rod portion, 9b ... Side rod portion, 10 ... Front support rod, 11 ... Flange portion, 12 ... Penetration portion with bolt, 13 ... Rear support rod, 14 ... Connection rod, 16 ... Mounting Frame, 17 ... Mounting rod part, 19 ... Horizontal reinforcing bar rod part, 20 ... Connecting tool.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshikazu Hatakeyama 4-8-14 Minamiyokkamachi, Sanjo City, Niigata Sanko Sogyo Co., Ltd. (56) References Actual Open Sho 56-150683 (JP, U) Actual Open Sho 57-188527 (JP, U) Actual Open Sho 56-175280 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A wind guide installed on a roof upper surface of a driver's cab, wherein pivot parts are arranged side by side in the left-right direction near the upper edge of the rear surface of the wind guide at the rear part of the roof, and the pivot parts form a shape. The middle rod of the upper support rod is rotatably mounted, the front support rod is installed near the lower edge of the air guide, and the rear support rod is arranged behind the front support rod, and the rear support rod is provided with the upper support rod. Connecting rods that can be connected and fixed to the side rods of the supporting rods so as to be able to expand and contract are provided in a protruding manner, and a total of four connecting tools are provided on the left and right and front and rear of the driver's cab. A total of four mounting rods, each of which has a cross bar, are erected on the left and right so as to be opposed to each other in total, and the four mounting rods projecting inward from the front and rear positions of the respective upper portions of the mounting frame are connected to the front support rod. And the rear support rod is connected and fixed to the left and right sides of the rear support rod so as to be expandable and rotatable, and the attachment rod portion connected to the front support rod is penetrated into the side surface of the air guide body. And, air resistance reducing apparatus, characterized in that the bearing in the flange portion fixed to the penetrating portion with a bolt.