WO2002016767A1

WO2002016767A1 - Fuel consumption improving structure of running body

Info

Publication number: WO2002016767A1
Application number: PCT/JP2001/007232
Authority: WO
Inventors: Nobuyoshi Okazaki
Original assignee: Nobuyoshi Okazaki
Priority date: 2000-08-25
Filing date: 2001-08-23
Publication date: 2002-02-28
Also published as: JPWO2002016767A1; US20040202543A1

Abstract

A structure capable of efficiently improving the fuel consumption of a running body such as a running vehicle, comprising a fan shaft (23) disposed generally in vertical direction relative to the running direction (X) of the running body (1), fans (21) fixed to the fan shaft (23) and rotating the fan shaft (23) by receiving a head wind, propeller shafts (43) disposed generally in parallel direction relative to the running direction (X), transmission mechanisms (30) connecting the fan shaft (23) to the propeller shafts (43) and transmitting the rotating force of the fan shaft (23) to the propeller shafts (43), and propellers (41) fixed to the propeller shafts (43).

Description

Specification

Structure for improving fuel efficiency of the vehicle

The present invention relates to a structure for improving the fuel efficiency of a traveling body for improving the fuel efficiency of the traveling body, and is suitable for a traveling vehicle such as a truck, a ship, and the like. Background art

Examples of the structure of this type of traveling body include, for example, Japanese Utility Model Publication No. Showa 51-135 399, Japanese Patent Publication No. Heisei 141-121, Japanese Patent Publication No. The one disclosed in the official gazette of Heisei 10-339392 is known.

In the structure described in Japanese Utility Model Publication No. 5 1-1 3 5 3 9 9 (hereinafter referred to as Conventional Example 1), a propeller is mounted on a propeller shaft provided along the running direction. It has a blower, and the propeller of this blower receives the wind to rotate the propeller shaft, and transmits this rotational force to the underwater propulsion propeller or propulsion axle to obtain propulsion. It was a thing.

However, in the structure described in the conventional example 1, since the spout shaft of the blower is provided in a direction parallel to the traveling direction, the rotational force for sufficient driving even by the wind is received. It is thought that is not obtained. In addition, since the rotational force is transmitted directly to the underwater propulsion propeller etc. for obtaining the propulsion, it is considered that sufficient rotation for obtaining the propulsion of the traveling body cannot be obtained from the resistance etc. Can be

In addition, the structure described in Japanese Patent Application Publication No. Heisei 9-124241 (hereinafter referred to as Conventional Example 2) is a front part of a motorcycle as a vehicle. A wind vent is provided in the (wind shield panel), this wind vent is connected to one end of the flexible hose, and an impeller is provided at the other end of the flexible hose, and the rotating shaft of the impeller is driven by a driving sprocket. To obtain rotational driving force by wind power.

However, in the structure described in the conventional example 2, since it is provided in the internal structure of the motorcycle, it is difficult to design and install the structure. It is thought to act as a propulsion reaction force. In addition, as in the above-described conventional example 1, since the rotational force of the impeller is directly linked to the drive sprocket for obtaining the propulsion force, it is sufficient to obtain the propulsion force of the traveling body from the resistance force and the like. It is considered that no proper rotation can be obtained.

In addition, although the detailed structure of the structure described in Japanese Patent Publication No. Hei 10-339392 (hereinafter referred to as Conventional Example 3) is not clear from the description of the publication, A wind path pipe opening is provided in a front part which is a front part of a vehicle as a body, a wind path pipe is provided continuously from the wind path pipe, and a windmill is provided inside the wind path pipe, and the windmill is provided. It is probable that a wind power generator is installed on the shore.

However, in the structure described in Conventional Example 3, it is difficult to design and install it, because it is provided in the internal structure of the car, as in Conventional Example 2 above. It is considered that a running reaction force acts when passing.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object of the present invention is to provide a structure capable of efficiently improving the fuel efficiency of a traveling body. Disclosure of the invention The invention of the present application has been made in order to solve the above-mentioned problems, and a fuel efficiency improvement structure of a traveling body according to the invention of the present application is a fuel efficiency improvement structure attached to a traveling body 1 such as a vehicle, and is provided in a traveling direction (X). A blade shaft 23 arranged substantially perpendicular to the blade shaft, and a blade 21 fixed to the blade shaft 23 and rotating the blade shaft 23 in response to an opposing wind during traveling. It is characterized by

In the structure for improving fuel efficiency of a traveling body according to the present invention having the above configuration, when the traveling body 1 travels, the vane 21 receives an opposing wind from the front, the vane shaft 23 rotates, and the traveling body Fuel efficiency can be improved. In particular, since the blade shaft is arranged substantially perpendicular to the running direction as described above, it is easy to provide a wide wind receiving surface of the blade, and sufficient rotation can be performed.

Further, in the fuel efficiency improvement structure for a traveling body according to the present invention, as described in claim 2, a plurality of blades 21 are radially protruded from the blade shaft 23 in the outer circumferential direction and fixed. It is preferable to adopt a configuration in which the front surface 22 a of the upper blade 21 in the running direction with respect to 3 is provided as a wind receiving surface for receiving the opposing wind. By employing this configuration, the blade shaft 23 rotates in the direction in which the upper blade 21 is directed rearward in the traveling direction and the lower blade 21 is directed forward in the traveling direction.

Further, in order to solve the above-mentioned problems, the invention of the present application is a fuel efficiency improvement structure of a traveling body according to the invention of the present application, which is a fuel efficiency improvement structure attached to a traveling body 1 such as a vehicle, and is substantially in the traveling direction (X). With respect to the traveling direction (X), a vertically arranged blade shaft 23 and a blade 21 fixed to the blade shaft 23 and rotating the blade shaft 23 when receiving an opposing wind during traveling. A transmission mechanism 30 that connects the propeller shaft 43 arranged in a substantially parallel direction with the blade shaft 23 and the propeller shaft 43 to transmit the rotational force of the blade shaft 23 to the propeller shaft 43. And a propeller 41 fixed to the propeller shaft 43.

In the structure for improving fuel efficiency of the traveling body according to the present invention having the above-mentioned configuration, when the traveling wind of the traveling body 1 receives the opposing wind from the front, the blade shaft 23 rotates. Further, the propeller shaft 43 is transmitted to the propeller shaft 43 via the transmission mechanism 30 together with the rotation of the blade shaft 23, so that the propeller 41 rotates in a direction to send the wind to the rear side (Y) in the traveling direction. As described above, the blade fixed to the blade shaft arranged in a direction substantially perpendicular to the traveling direction rotates in response to the opposing wind during traveling, so that the fuel efficiency of the traveling body can be improved. In particular, since the blade shafts are arranged in a direction substantially perpendicular to the traveling direction as described above, it is easy to provide a wide wind receiving surface for the blades, and it is possible to obtain a sufficient rotational force. Further, the propeller 41 is provided so as to rotate in a direction in which the wind is sent rearward in the traveling direction (Y) by the rotational force transmitted from the blade shaft 23 to the propeller shaft 43.

Further, in the fuel efficiency improvement structure of the traveling body according to the present invention, as described in claim 4, the blade 21 is curved so that the rear surface in the rotation direction becomes the wind receiving surface 22a, and the blade shaft 23 It is preferable to adopt a configuration in which a large number are fixed to each other. In the structure for improving fuel efficiency of a traveling body according to claim 4, which adopts the above configuration, when an opposing wind during traveling hits the wind receiving surface 2 2a of the blade 21, the blade 21 is accurately rotated. 23 can be rotated in the rotational direction, and a sufficient rotational force can be obtained.

Further, in the fuel consumption improvement structure of the traveling body according to the present invention, as described in claim 5, the transmission mechanism 30 includes the blade shaft gear 32 fixed to the blade shaft 23 and the propeller shaft 43. It is preferable that it is composed of a propeller shaft gear 34 that is fixed and engages with the blade shaft gear 32. Further, in the structure for improving fuel efficiency of a traveling body according to claim 5 having such a configuration, as described in claim 6, the blade shaft gears 32 are provided at both ends of the blade shaft 23. A pair of the propeller shafts 43 is provided on both sides of the blade shaft 23, and the propeller shaft gears 34 are fixed to each of them, so that one blade shaft gear 32 and one side propeller are provided. A configuration is provided in which the propeller shaft gear 34 of the shaft 43 is connected and the blade shaft gear 32 of the other side is connected to the propeller shaft gear 34 of the other propeller shaft 43. It is preferable to employ it. In the fuel consumption improving structure for a traveling body according to claim 6 having the above configuration, a pair of propeller shafts 43 are provided on both sides of the blade shaft 23, and the pair of propeller shafts 43 rotate, The propellers 41 on both sides rotate similarly.

Further, in the structure for improving fuel efficiency of the traveling body according to claim 6, one of the propeller shaft gears 34 engages with the blade shaft gear 32 on the forward side in the traveling direction of the traveling body 1 and the other side has the other side. It is preferable to adopt a configuration in which the propeller shaft gear 34 is provided so as to mesh with the blade shaft gear 32 on the rear side in the traveling direction. By adopting this configuration, the rotation of the blade shafts 23 is transmitted as rotations of the respective propeller shaft gears 34 engaging with these via the blade shaft gears 32 on both sides in the same direction. The rotation directions of the propellers 4 1 on both sides can be matched. For this reason, the propeller shafts 43 and the propellers 41 on both sides can be designed inexpensively with the same structure without employing a complicated connection structure. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a front view of a traveling body 1 equipped with a fuel efficiency improvement structure according to a first embodiment of the present invention, and FIG. 2 is a plan view of the traveling body. FIG. 3 is a partially omitted plan view of the fuel efficiency improvement structure of the embodiment. Figure 4 shows the same FIG. 4 is an explanatory view of a blade in the fuel efficiency improving structure of the embodiment, and is an enlarged sectional perspective view of a main part. FIG. 5 shows an experimental result in which the fuel efficiency improvement structure of the embodiment is mounted. FIG. 6 is a front view of the traveling body 1 equipped with the fuel efficiency improvement structure according to the second embodiment of the present invention, and FIG. 7 is a plan view of the fuel efficiency improvement structure of the embodiment with a part omitted. FIG. 8 is a front view of a traveling body 1 equipped with a fuel efficiency improvement structure according to another embodiment. FIG. 9 is an explanatory view of a blade in a fuel efficiency improving structure of another embodiment, and is an enlarged sectional perspective view of a main part. FIG. 10 is an explanatory view of a blade in a fuel efficiency improvement structure of another embodiment, and is an enlarged sectional side view of a main part. FIG. 11 is an enlarged explanatory view of a main part of a fuel efficiency improvement structure of another embodiment, in which (a) is a side view and (b) is a plan view. FIG. 12 is an enlarged side view of a main part of a fuel efficiency improvement structure of another embodiment. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

The fuel efficiency improvement structure according to the first embodiment will be described by taking, as an example of a traveling body, one mounted on a truck 1 (traveling vehicle).

The structure for improving fuel efficiency can be mounted on other traveling vehicles such as automobiles such as mini cars, motorcycles such as motorcycles, and further mounted on traveling vessels such as motor ports. It is also possible. The truck 1 as a traveling body of the present embodiment includes a traveling drive source (not shown) such as a driving engine for applying a propulsion force, and is provided on a front side in a traveling direction.

(X) and driven to rotate by the traveling drive source It comprises an operating unit 5 having wheels 3 and a loading unit 7 located on the rear side (Y) of the operating unit.

The fuel efficiency improving structure of the present embodiment is mounted above the traveling body 1, and specifically, is mounted above the driving section 5. More specifically, the fuel efficiency improving structure is fixed (ported) to a screwed portion (not shown) provided on an internal frame (not shown) of the driving section 5.

The fuel efficiency improving structure of the present embodiment is a wind receiving mechanism having a frame 10 fixed (ported) to the truck 1 (driving unit 5) and a blade shaft 23 that rotates by receiving an opposing wind during traveling. 20 and the blade axis of wind receiving mechanism 20

And a propeller mechanism 40 to which the torque of 23 is transmitted via the transmission mechanism 30.

The frame 10 of this fuel efficiency improving structure is composed of a blade shaft support 10a for rotatably supporting the blade shaft 23 of the wind receiving mechanism 20 and a propeller shaft 43 of the propeller mechanism 40 for rotation. And a propeller shaft supporting portion 1 Ob for supporting the propeller shaft.

The frame 10 will be described in more detail. The frame 10 is composed of four legs 11 fixed to the truck 1 (the inner frame of the driving section 5), and a connection connecting the legs 11 to each other. Frame (vertical connection frame 13a and horizontal connection frame 13b) and this connection frame (horizontal connection frame 1

3b) and a supporting frame 15 fixed to the supporting portions 10a and 10b. The supporting frames 15 are provided as a pair on both left and right sides.

Each of the pair of supporting frames 15 is provided with the blade shaft supporting portion 10a for supporting one end of the blade shaft 23. This support is provided through bearings. In addition, the pair of support frames 15 A pair of propeller shaft support portions 10b for supporting the front and rear of the propeller shaft 43 are respectively provided before and after the blade shaft support portion 10a in the traveling direction. This support is provided via bearings. The propeller shaft support portions 10b are provided so as to protrude outward from the support frame 15 respectively.

The wind receiving mechanism 20 is rotatably supported by (the blade shaft support 10 a of) the frame 10. The wind receiving mechanism 20 has a blade shaft 23 arranged substantially perpendicularly to the traveling direction (X), and a blade shaft fixed to the blade shaft 23 and receiving an opposing wind during traveling. And blades 21 provided to rotate 23.

The vicinity of both ends of the blade shaft 23 is supported by a pair of blade shaft support portions 10 a of the frame 10. A blade shaft gear 32 as a transmission mechanism 30 described later is fixed to the blade shaft 23 outside the supported portion (at the end of the blade shaft 23). Blade shaft gear 3 2 This is still _t are fixed respectively to both ends of the blade shaft 2 3, the blade shaft gear 3 2, faces each other seen嚙is consists of bevel gears or inclined.

A plurality of blades 21 (four in the illustrated example) are radially protruded from the blade shaft 23 in the outer peripheral direction and are fixed (welded) to the blade shaft 23. The blade 21 is curved so that the rear surface in the rotational direction becomes the wind receiving surface 22 a, and the front surface 22 a of the upper blade 21 in the traveling direction is opposed to the blade shaft 23. It is provided to be a wind receiving surface for receiving wind.

More specifically, as shown in FIG. 4, the substantially flat blade 21 has its outer end 21 a on the rear side in the rotational direction from the halfway portion 21 b (clockwise side shown in FIG. 4). It is curved so that it is located at For this reason, the other side 2 2b (the front side in the rotation direction) of the wind receiving surface 2 2a is shaped to allow the counter wind to escape. Has been established. In the illustrated example, the blade 21 is formed in a shape of a circular cross section formed by cutting a circle into about one third.

Further, the blades 21 are provided across the width direction of the traveling body 1. Specifically, the blades 21 are provided between the pair of support frames 15 (blade shaft support portions 10a). The blade is protruded from the blade shaft 23.

The propeller mechanism 40 includes a propeller shaft 43 arranged substantially parallel to the traveling direction (X), a propeller shaft 43 fixed to the propeller shaft 43, and a transmission mechanism 30 from the blade shaft 23. The propeller 41 sends wind to the rear side (Y) in the traveling direction by the rotational force transmitted to the propeller shaft 43. In other words, the propeller mechanism 40 and the wind receiving mechanism 20 are connected by the transmission mechanism 30 so as to rotate in desired directions when receiving the opposing wind. In other words, as will be described later, it is considered that the propeller 41 starts rotating by receiving the opposing wind particularly at the start of rotation. In this way, the propeller 41 rotates by receiving the opposing wind, thereby The rotation of the propeller mechanism 40 is provided so as to rotate the wind receiving mechanism 20 in a desired direction via the transmission mechanism 30.

The propeller shaft 4 3, the _t specifically are disposed a pair on both sides of the upper portion of the traveling body 1, a pair of propeller shafts 4 3, respectively opposite sides of the frame 1 0 of the support frame Ichimu 1 5 (propeller It is rotatably supported by the shaft support 10 b). Each propeller shaft 43 is supported by the pair of propeller shaft support portions 10b. In each propeller shaft 43, a propeller shaft gear 34 as a transmission mechanism 30 described later is fixed between the portions supported by the propeller shaft 43. The propeller shaft gears 34 are provided so as to mesh with the blade shaft gears 32, respectively. The propeller shaft gear 34 is composed of a bevel gear having a mating surface inclined. In addition, the propeller shaft gear 34 has a propeller shaft gear 34 on one side (the right side in FIG. 3) meshed with the blade shaft gear 32 on the front side (X) in the traveling direction of the traveling body 1 and the other side. The propeller shaft gear 34 (on the left side in FIG. 3) is provided so as to mesh with the blade shaft gear 32 on the rear side (Y) in the traveling direction.

More specifically, each of the propeller shafts 43 is an extension of the blade shaft 23 and is arranged in a direction orthogonal to the blade shaft 23. Then, the propeller shaft gear 32 is fixed to one end of the blade shaft 23 so that the front portion of the propeller shaft gear 34 is engaged with the propeller shaft gear 34 of the propeller shaft 43 on one side. The gear 34 is slightly fixed on the front side. Further, the propeller shaft gear 34 is fixed such that the rear portion of the blade shaft gear 32 fixed to the other end of the blade shaft 23 and the propeller shaft gear 34 of the other side of the propeller shaft 43 engage with each other. The shaft gear 34 is fixed slightly behind. The propeller shaft gear 34 is formed of a bevel gear having an inclined mating surface.

The transmission mechanism 30 is a mechanism that connects the blade shaft 23 and the propeller shaft 43 to transmit the rotational force of the blade shaft 23 to the propeller shaft 43. In this embodiment, the transmission mechanism 30 includes a pair of blade shaft gears 32 fixed to both ends of the blade shaft 23 described above, and a pair of propeller shaft gears meshing with the blade shaft gear 32. It consists of 3 and 4. In other words, a pair of the transmission mechanisms 30 is provided on both sides of the blade shaft 23.

Here, as described above, this pair of transmission mechanisms 30 is configured such that one of the propeller shaft gears 34 engages with the blade shaft gear 32 on the front side (X) in the traveling direction of the traveling body 1, and The propeller shaft gear 34 on the side is provided so as to mesh with the blade shaft gear 32 on the rear side (Y) in the traveling direction, so that the rotational force of one blade shaft 23 is allocated to both sides. In the same direction to a pair of propeller shafts 4 3 It is configured so that it can be transmitted as rotational force (for example, rotational force counterclockwise in front view).

Further, the blade shaft 23 and the propeller shaft 43 serving as the transmission mechanism 30 are connected so that the rotation ratio of the rotation of the blade shaft 23 makes the propeller shaft 43 rotate four times. Here, the connection between the blade shaft 23 and the pair of propeller shafts 43 is such that the pair of propeller shafts 43 are respectively rotated so as to rotate at the same rotation speed.

The rotation ratio may be set so that the propeller shaft 43 rotates six times with respect to one rotation of the blade shaft 23, and may be, for example, three or more rotations, or four or more rotations. It is also possible to set the rotation to eight or less, or seven or less. Furthermore, the propeller shaft 43 may be provided so as to make one rotation with respect to one rotation of the blade shaft 23.

In the above embodiment, the above-described rotation ratio is obtained by the gear ratio between the propeller shaft gear 34 and the blade shaft gear 32.

In the fuel efficiency improvement structure of the present embodiment having the above-described configuration, when the traveling body 1 travels in the forward direction (X) by the driving of the traveling drive source, the opposing wind (wind in the Y direction) accompanying the traveling is caused by the blade 2. The first wind receiving surface 22a receives the blade shaft 23 by this. At the start of this rotation, it is considered that not only the wind receiving surface 22a receives the opposing wind but also the prober 41 starts rotating by receiving the opposing wind.

When the blade 21 receives the opposing wind during traveling as described above, the blade shaft 23 rotates, and this rotation is transmitted to the propeller shaft 43 via the transmission mechanism 30. As a result, the propeller 41 Will rotate in the direction that sends the wind to the rear side (Y) in the traveling direction. In this rotation, as in the above-mentioned rotation start, it is considered that the counter wind is received by the wind receiving surface 22a. Instead, it is considered that the propeller 41 rotates in response to the opposing wind, and the rotation of the propeller 41 causes the blade shaft 23 to rotate.

Here, since the blades 21 can be provided across the width direction of the traveling body 1, the area of the wind receiving surface 22a of the blade 21 can be widened, and the air receiving surface 22a can be provided. Since the area can be increased, a larger rotational force of the blade shaft 23 can be obtained.

In addition, since the blade 21 is provided so as to be curved so that the rear surface in the rotation direction becomes the wind receiving surface 22 a, the wind receiving surface 22 a can receive the counter wind more accurately, and The rotating force of the blade shaft 23 can be obtained.

Moreover, since the blades 21 are formed by bending a flat plate, the other surface 22 b (the front surface in the rotation direction) of the wind receiving surface 22 a is formed in a shape that allows the counter wind to escape. However, it is possible to accurately prevent the opposing wind from acting in the direction of the reaction force of the rotational force, so that the rotational force of the blade shaft 23 can be increased.

Also, since a pair of propellers 41 are provided on both sides of the traveling body 1, the wind can be sent to the rear side in a well-balanced manner.

In addition, since the propellers 41 on both sides rotate at the same rotation speed, they can rotate in a more balanced manner.

Further, since the propellers 41 are provided so as to rotate in the same direction, the same members can be used. In other words, when a screwing means is employed as a connecting means between the propeller shaft 43 and the propeller 41, if the pair of propeller shafts 43 rotates in the other direction, one of the propeller shafts 43 and the propeller 41 is rotated. It is necessary to use a screw means that rotates in the other direction for connection with, and this may increase the manufacturing cost. On the other hand, in the above-described embodiment, the pair of propeller shafts 43 are provided so as to rotate in the same direction. Even when the propeller 41 is fixed, screw means in the same direction can be employed for fixing the propeller shaft 43 and the propeller 41, thereby facilitating manufacturing and reducing costs. It has the advantage of being

When comparing the fuel efficiency of the vehicle 1 equipped with the fuel efficiency improvement structure configured as described above and the fuel efficiency without the vehicle, the mileage per liter of gasoline should be improved. Was completed. As described above, it can be considered that the propeller 41 sends the wind to the rear to obtain the propulsion force.However, the wind is sent to the rear side based on the rotation of the blades 21 and the opposing wind is generated. It is probable that the resistance of the vehicle based on the vehicle was reduced, thereby improving fuel economy. In other words, a negative pressure is generated on the rear side of the traveling body due to the oncoming wind, and the traveling body generates resistance that is drawn to the rear side.However, it is considered that the wind is sent by the blade 21 here. .

Specifically, when traveling on an expressway without the above fuel efficiency improvement structure, the mileage per liter of gasoline was about 7.54 km, When the vehicle ran, the mileage per liter of gasoline was approximately 9.84 km.

Fig. 5 shows other experimental results. FIG. 5 shows the results of nine experimental examples equipped with the above fuel efficiency improving structure and three comparative examples not equipped. In each case, the vehicle traveled mainly on a highway, and the travel distance and fuel consumption were measured. In the column of "Propeller: Blade", the rotation ratio of the propeller shaft and the blade shaft of the installed fuel efficiency improving structure is shown. The column “whether or not there is luggage” indicates whether or not luggage is loaded on the bed during the experiment.

<Second embodiment> Next, a second embodiment of the present invention will be described below with reference to FIGS. The components having the same configurations and functions as those of the first embodiment are denoted by the same reference numerals, and detailed description is omitted. Similar to the first embodiment, the fuel efficiency improvement structure of the second embodiment includes a frame 10 fixed (ported) to the truck 1 (driving unit 5), and a blade shaft that rotates by receiving an opposing wind during traveling. And a wind receiving mechanism 20 having 23. Note that the propeller mechanism and the transmission mechanism of the first embodiment are not provided.

In the second embodiment, similarly to the first embodiment, the frame 10 has a blade shaft supporting portion 10a that rotatably supports the blade shaft 23 of the wind receiving mechanism 20. The wind receiving mechanism 20 is rotatably supported by (the blade shaft supporting portion 10a) of the frame 10 (a blade shaft supporting portion 10a), and is arranged in a direction substantially perpendicular to the traveling direction (X). The blade 21 is fixed to the blade shaft 23 and is provided to rotate the blade shaft 23 in response to an opposing wind during traveling. The shape of the blades 23 is the same as in the first embodiment.

In the fuel efficiency improving structure of the second embodiment having the above configuration, when the traveling body 1 travels in the forward direction (X) by driving of the traveling drive source, the oncoming wind (wind in the Y direction) accompanying the traveling is reduced. The wind receiving surface 22 a of the blade 21 receives the rotation, and thereby the blade shaft 23 rotates. Then, based on the rotation of the blade 21, the wind is sent to the rear side, so that the resistance of the traveling body is reduced, and it is considered that the fuel efficiency is improved.

Other embodiments>

Although the fuel efficiency improvement structure of each of the above embodiments has the above-described advantages due to the above-described configuration, the present invention is not limited to this, and the design can be appropriately changed within the scope of each claim. is there. That is, in the above-described first embodiment, the case where the pair of propeller shafts 43 are provided on both sides of the blade shaft 23 has been described, but the present invention is not limited to this. Also, when the propeller shaft 43 is provided, it is within the scope of the present invention to provide the propeller 41 only on one side or to provide three or more propellers 41.

Further, in the first embodiment, as the transmission mechanism 30, a blade shaft gear 32 fixed to the blade shaft 23 and a propeller shaft gear 34 fixed to the propeller shaft 43 are directly engaged. Was explained. However, in the invention of the present application, for example, adopting a method of connecting the both via a reduction mechanism or the like including a plurality of reduction gears is a matter that can be appropriately changed in design. Further, even in the case where the gears are directly engaged with each other as in the above-described embodiment, it is also a matter that the design can be appropriately changed such that the engaged portion is covered with an oil case or the like.

Furthermore, the propeller 41 has been described as having four propellers protruding from the propeller shaft 43, but any propeller 41 capable of sending wind to the rear side can be employed.

Also, a truck has been described as an example of the traveling body 1 on which the fuel efficiency improving structure of the above embodiment is mounted, but the present invention is not limited to this. Further, even when mounted on a traveling vehicle such as a truck, the vehicle is not directly fixed to the traveling vehicle as in the above-described embodiment. For example, as shown in FIG. It is also possible to fix the mounting table 6 above the part 5) and mount and fix the fuel efficiency improving structure on the upper surface of the mounting table 6.

Further, the shape of the blades 21 of the wind receiving mechanism 20 is not limited to that of the above-described embodiment. For example, the shape shown in FIG. 9 can be adopted. A plurality of blades 21 of this illustrated example are radially arranged from the blade shaft 23 in the same manner as in the above-described embodiment. And is fixed (welded) to the blade shaft 23 so as to protrude in the outer circumferential direction, and the blade 21 is provided so as to be curved so that the rear surface in the rotation direction becomes the wind receiving surface 22 a. The end 2 la of 21 is bent toward the outer periphery. The end 2 la is bent toward the outer periphery (radial direction) with respect to the blade shaft 23.

In addition, the method of fixing the blade 21 to the blade shaft 23 is not limited to welding, and a fixing method using a port, for example, can be adopted. In the example shown in FIG. 10, the blade shaft 23 and the blade 21 are fixed by a port 25a and a nut 25b. In the illustrated example, the opposing blades 21 are fixed to the blade shaft 23 by a pair of ports 25a and nuts 25b. The blade shaft 23 is provided with a substantially planar mounting portion with which the blade 21 is brought into contact, and is provided as a whole in a square cross section (square shape). The one end of the blade 21 is arranged so as to abut on the mounting portion of the blade shaft 23. A port 25a is inserted into this portion, and a nut 25b is screwed into the port 25a. As a result, the blade 21 is fixed to the blade shaft 23. The port 25a and the nut 25b are provided in three pairs in the axial direction of the blade shaft 23. Further, the blade shaft 23 can be manufactured by, for example, shaving a square pillar steel material into a circle centered on the center of gravity at both ends, and supporting the frame 10 at the cut both ends. Further, as shown in FIG. 11, it is possible to provide a safety device 50 provided on the outer peripheral side of the blade 21 so as to allow the flow of the wind and to cover the outside of the blade 21. The safety device 50 in the illustrated example is composed of a semicircular steel member 51 provided integrally with the frame 10, and the steel member 51 covers the outer peripheral side of the blade 21 so that the frame 10. Fixed (welded). Similarly, the propeller mechanism 40 may be provided with a safety device on the outer peripheral side of the propeller 41 and / or on the front side in the traveling direction. Further, as shown in FIG. 12, it is also possible to provide a windproof member 60 for preventing a counter wind from flowing to the blade 21 below the blade shaft 23. Is fixed (welded) to the frame 10, and the upper side is provided so that the horizontal position is substantially at the height of the blade shaft 23 and is inclined rearward in the traveling direction. Industrial applicability

As described above, the structure for improving fuel efficiency of a traveling body according to the present invention is mounted on, for example, a traveling body such as a traveling vehicle, and is suitably used for improving the fuel efficiency of the traveling vehicle.

Claims

The scope of the claims

1. A fuel efficiency improving structure attached to a vehicle (1) such as a vehicle, the blade axis (2 3) being arranged substantially perpendicular to the traveling direction (X), and the blade axis (2 3) And a vane (21) rotating the blade shaft (23) in response to an oncoming wind during traveling.

2. A plurality of the blades (21) are radially projected outward from the blade shaft (23) and are fixed to the blade shaft (23).

2. The structure for improving fuel efficiency of a traveling body according to claim 1, wherein the front surface (2 2a) in the traveling direction of (1) is provided as a wind receiving surface for receiving an opposing wind.

3. A fuel efficiency improving structure attached to a vehicle (1) such as a vehicle, the blade shaft (2 3) being arranged substantially perpendicular to the running direction (X), and the blade shaft (2 3) A blade (2 1), which is fixed to and rotates a blade shaft (2 3) in response to an oncoming wind during traveling;

A propeller shaft (43) arranged substantially parallel to the traveling direction (X);

By connecting the blade shaft (23) and the propeller shaft (43), the blade shaft (2

A traveling mechanism comprising: a transmission mechanism (30) for transmitting the rotational force of (3) to a propeller shaft (43); and a propeller (41) fixed to the propeller shaft (43). Structure for improving fuel efficiency of the body.

4. The blade (21) is characterized by being curved so that the rear surface in the rotation direction becomes a wind receiving surface (22a), and is fixed to a plurality of blade shafts (23). 3. Structure for improving fuel efficiency of the running body described in 3.

5. The transmission mechanism (30) has a blade shaft gear (32) fixed to the blade shaft (23) and a blade shaft gear (32) fixed to the propeller shaft (43). The structure for improving fuel efficiency of a traveling body according to claim 3 or 4, wherein the structure comprises a propeller shaft gear (34) that meshes with the propeller shaft gear.

6. The blade shaft gears (32) are provided at both ends of the blade shaft (23), respectively.

The propeller shaft (43) is provided in a pair on both sides of the blade shaft (23), and the propeller shaft gear (34) is fixed to each of them.

One blade shaft gear (32) is connected to the propeller shaft gear (34) of one propeller shaft (43), and the other blade shaft gear (32) is connected to the other propeller shaft. The fuel efficiency improvement structure for a traveling body according to claim 5, wherein the structure is provided so as to be connected to the propeller shaft gear (34) of the shaft (43).

7. The propeller shaft gear (34) on the one side engages with the blade shaft gear (32) on the front side in the traveling direction of the traveling body (1), and the propeller shaft gear (34) on the other side 7. The fuel consumption improving structure for a traveling body according to claim 6, wherein the structure is provided so as to mesh with the blade shaft gear (32) on the rear side in the traveling direction.