WO2007029948A1

WO2007029948A1 - Road guiding device

Info

Publication number: WO2007029948A1
Application number: PCT/KR2006/003500
Authority: WO
Inventors: Cheol Soo Lim
Original assignee: Cheol Soo Lim
Priority date: 2005-09-06
Filing date: 2006-09-04
Publication date: 2007-03-15
Also published as: KR200402535Y1

Abstract

Provided a road guiding device which can display a plurality of destinations existing in one direction by rotating a rotating body having more than two surfaces on which different destinations are written. The road guiding device includes a case that is fixed to the upper portion of a post installed in the edge of a road or in the vicinity of a sidewalk and has a destination displaying portion perforated on a predetermined position of one surface thereof; a rotating body that is rotatably installed in the case and has more than two surfaces on which different destinations are respectively written, the rotating body being exposed through the destination displaying portion; and a rotating unit that rotates the rotating body.

Description

[DESCRIPTION] [Invention Title]

ROAD GUIDING DEVICE [Technical Field]

The present invention relates to a road guiding device which can display a plurality of destinations in. one direction on a road sign board. [Background Artl

In general , road sign boards serve to show a road to a driver such that the driver can go to a destination by car. Road sign boards are installed at a predetermined distance therebetween in the vicinities of a road, each of the road sign board being formed in such a shape as shown in Fig.1.

Fig. 1 is a front view of a conventional road sign board.

As shown in Fig. 1_P the road sign board 130 is composed of a board having a predetermined size, on which destinations and destination directions are displayed by reference to a place where the road sign board is installed. The road sign board 130 is fixed to the upper portion of a post 110 installed in the edge of a road or in the vicinity of a sidewalk by a pair of connection rods 120.

The road sign board is formed of a metallic material. The destinations and destination directions are displayed by high-brightness reflecting paper attached on predetermined positions of the board, that is, a destination displaying section 131 and a destination direction indicating section 133,

The reflecting paper diffuses light irradiated from a car such that the contents displayed on the road sign board 130 can be clearly seen even in the nighttime.

In suet a road sign board, however, a plurality of destinations existing in one destination direction, that is, road names, geographical designations, or buildings cannot be displayed while being changed,

In order to solve such a problem, Korean Laid-Open Patent Publication No. 2000-0058532 and Korean Utility Model Publication Wo. 2002-0037764 disclose a road guiding device in which a light-emitting diode module is installed in a destination displaying section so as to display a plurality of destinations existing in a corresponding destination direction.

However, according to the conventional road guiding device, characters displayed on the light-emitting diode module cannot be recognized in the daytime because of the sun light, and light-emitting diode modules should be replaced frequently because of a low lifetime thereof.

[Disclosure] [Technical Problem]

The present invention provides a road guiding device which can display a plurality of destinations existing in one direction by rotating a rotating body having more than two surfaces on which different destinations are written. [Technical Solution]

According to an aspect of the invention, a road guiding device includes a case that is fixed to the upper portion of a post installed in the edge of a road or in the vicinity of a sidewalk and in which a destination displaying portion is perforated on a predetermined position of one surface thereof; a rotating body that is rotatably installed in the case and has more than two surfaces on which different destinations are respectively written, the rotating body being exposed through the destination displaying portion; and a rotating unit that rotates the rotating body, [Advantageous Effects]

According to the above-described road guiding device of the present invention, it is possible to display a plurality of destinations existing in one direction by rotating a rotating body having- more than two surfaces on which different destinations are written. [Description of Drawings)

Fig. l isa front view of a conventional road sign board. Fig. 2 is a front view of a road guiding device according to an embodiment of the present invention. Fig. 3 is a front view of the road guiding device, which is seen in a state where a portion of a case shown in Fig.2 is removed.

Fig, 4 is a side view of the road guiding device, which is seen in a state where a portion of the case shown in Fig.2 is removed.

Fig. 5 is a perspective view of a rotating body having three surfaces which can be applied to the invention.

Fig. 6 is a perspective view of a rotating body having four surfaces which can be applied to the invention.

Fig. 7 is a perspective view of a rotating body having two surfaces which can be applied to the invention.

Fig. 8 is an electrical block diagram of the road guiding device according to the invention.

Fig. 9 is a front view of a road guiding device according to another embodiment of the invention.

Fig. 10 is a front view of the road guiding device, which is seen in a state where a portion of a case shown in Fig. 9 is removed.

Fig. 11 is a side view of a road guiding device according to a further embodiment of the invention.

Fig. 12 is a side view of a road guiding device according to a still further embodiment for reducing the thickness thereof.

Fig. 13 is a diagram for explaining an angle at which a rotating body is stopped.

Fig. 14 is a perspective view of a rotating body according to a still further embodiment.

Reference Numerals

110, 120post

120, 220connection rod

130, 230, 430, 530, 630road sign board

131, 233, 433destination display section

133, 235, 435destination direction indicating section 231, 431, 531, 631case 241 rotating body 241a first rotating body 241b second rotating body 241c third rotating body 241d fourth rotating body 243 rotating shaft 245 rotating shaft supporting body 247, 249 rotating body serrated wheel 248 chain 250, 370 motor 251 motor shaft 253, 257 motor serrated wheel 255 motor supporting body 260 control unit 310 power supply section 330 control section 350 motor driving section 531a, 631a front surface 531b, 631b back surface

[Best Mode]

Hereinafter, a road guiding device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

Fig, 2 is a front view of the road guiding device according to an embodiment of the invention,

As shown in Fig. 2, the road guiding device 230 according to the invention includes a case 231 and a rotating body 241. The case 231 is fixed to a pair of connection rods 220 projecting on the upper portion of a post 210 installed in the edge of a road or in the vicinity of a sidewalk and is composed of a destination direction indicating section 235, which is provided on the front surface of the road guiding device 230 so as to indicate a destination direction, and a destination displaying section 233 which is perforated so that a destination can be displayed. The rotating body 241 is installed inside the case 231, is exposed through the destination displaying section 233, is rotated by a motor (not shown), and has a plurality of destinations written thereon,

As the rotating body 241 rotates, the plurality of destinations can be displayed in one destination direction, while being changed.

Fig, 3 is a front view of the road guiding device 230, which is seen in a state where a portion of the case of Fig. 2 is removed. Inside the road guiding device, there are provided the rotating body 241 having a rotating shaft 243; a rotating shaft supporting body 245 which is formed to project on a predetermined position of the case 231 so as to rotatably support the rotating shaft 243; a rotating body serrated wheel 247 installed on a predetermined position of the rotating shaft 243; a motor 250 which is fixed to the case 231 by a motor supporting body 255 and has a motor serrated wheel 253 provided on a motor shaft 251; a chain 248 for connecting the motor serrated wheel 253 and the rotating body serrated wheel 247; and a control unit 260 for controlling the motor 250.

Accordingly, if the motor 250 is driven by the control unit 260, the motor serrated wheel 253 installed on the motor shaft 251, the rotating body serrated wheel 247 connected to the motor serrated wheel 253 through the chain 248, and the rotating body 241 connected to the rotating body serrated wheel 247 through the rotating shaft 243 are simultaneously rotated so that a plurality of destinations existing in one destination direction are sequentially displayed on the destination displaying section 233.

In the above-described construction, the serrated wheels 247 and 253 and the chain 248 are torque transmitting units which transmit the torque of the motor 250 to the rotating body 241. In addition to those, a gear composed of a plurality of serrated wheels or a combination of pulley and belt can be used as the torque transmitting unit. As the rotating shaft supporting body 245, a bearing can be used. As for the control unit 260 which stops the rotating body 241 at a predetermined position for a predetermined time and then rotates the rotating body 241, a microcomputer provided with a time detecting unit, such as a timer, or an MPU (Micro Process Unit) can be used.

Qa the contrary, the rotating body 241 can be rotated continuously. In this case, the control unit 260 does not need to be installed.

Fig. 4 is a side view of the road guiding device 230 of Fig, 2, which is seen in a state where a portion of the case is removed. In Fig. 4, there are shown the case 231 of which the destination indicating section is perforated; the motor 250 to which the motor serrated wheel 253 is connected and which is fixed to the case 231 by the motor supporting body 255; the rotating body 241 having the rotating body serrated wheel 247 connected to the motor serrated wheel 253 through the chain 248; and the control unit 260 controlling the motor 250. When the motor serrated wheel 253 is rotated by the driving of the motor 250, the rotating body 241 simultaneously rotates.

The rotating body 241 has a plurality of surfaces and will be described with reference to Figs- 5 to 7.

Fig. 5 is a perspective view of a rotating body having three surfaces on which different destinations in one direction are respectively written.

Fig. 6 ϊs a perspective view of a rotating body having four surfaces on which different destinations in one direction are respectively written.

Fig. 7 is a perspective view of a rotating body having two surfaces on which difference destinations in one direction are respectively written.

As shown in Fig. 8, the rotating guiding device includes a power supply section 310 which supplies power, a motor 370 which rotates the rotating body; a motor driving section 350 which drives the motor 370; and a control section 330 which receives power from the power supply section 310 so as to control the mυtor driving section 350 under a predetermined condition. The control section may receive power from the outside through a cable. In this case, a solar battery or wind power battery is preferably used. Preferably, the case is manufactured to have such a structure that the front or back surface thereof can be opened In order to replace the rotating body,

Fig. 9 is a front view of a road guiding device according to another embodiment of the invention. The road guiding device includes a case 431 and a rotating body 241. The case 431 is fixed to a pair of connection rods 220 projecting on the upper portion of a post 210 installed in the edge of a road or in the vicinity of a sidewalk and is composed of a plurality of destination direction indicating sections 435, which are provided on the front surface of the road guiding device so as to indicate a destination direction, and a plurality of destination displaying sections 433 which are perforated so that a destination can be displayed. The rotating body 241 is installed inside the case 4.31, is exposed by the destination displaying section 433, is rotated by a motor (not shown), and has a plurality of destinations written thereon. In this case, arrows of the destination direction indicating section 435, each" arrow indicating a destination direction, are separated from each other depending on a direction, and each of the destination displaying section 433 has the rotating body 241 on which a plurality of destinations are written_*

On more than two of destination displaying sections 433 provided in the same direction, different destinations can be displayed, but the same destination can be displayed in a different language.

Fig, 10 is a front view of the road guiding device of Fig. 9, which is seen in a state where a portion of the case is removed. The road guiding device includes the rotating body 241 having a rotating shaft; a rotating shaft supporting body 245 which is formed to project on a predetermined position of the case 431 so as to rotatably support the rotating shaft 243; a rotating body serrated wheel 249 installed on a predetermined position of the rotating shaft 243; a motor 250 which is fixed to the case 431 by a motor supporting body (not shown) and has a motor serrated wheel 257 provided Dn a motor shaft 251, the motor serrated wheel 257 being geared with the rotating body serrated wheel 249; and a control unit 260 controlling the motor.

Accordingly, if the motor 250 is driven by the control unit 260, the motor serrated wheel 257 installed on the motor shaft 251, the rotating serrated wheel 249 connected to the motor serrated wheel 257, and the rotating body 241 connected to the rotating body serrated wheel 249 through the rotating shaft 243 are simultaneously rotated so that different destinations depending on a corresponding direction are sequentially displayed on each of the destination displaying section 433.

Fig. 11 is a side view of the road guiding device according to a further embodiment of the invention, showing a case where destinations and destination directions are displayed on the front and back surfaces 531a and 531b of the road guiding device, respectively.

Fig. 12 is a side view of a road guiding device according to an embodiment for reducing the thickness of the road guiding device of Fig. 11, showing a case where the serrated wheels 249 and rotating bodies 241 are installed so as to rotate in such a range that the respective rotating bodies 241 do not collide with each other, in consideration of the rotation radiuses and rotation directions of the respective rotating bodies 241, That is, if the first rotating body 241a rotates in the clockwise direction, the second rotating body 241b rotates in the counterclockwise direction, the third rotating body 241c rotates in the clockwise direction, and the fourth rotating body 24ld rotates in the counterclockwise direction.

Accordingly, it is possible to reduce the thickness of the road guiding device which displays destinations and destination directions on the front and back surfaces 631a and 631b.

Fig- 13 is a diagram for explaining an angle at which the rotating body is stopped, Considering that most of road guiding devices are installed on a road at a predetermined height, the destination displaying surface of the rotating body 241 is inclined toward a driver, as shown in Fig. 13. Then, the driver can check a destination more clearly. Fig. 14 is a perspective view of a rotating body according to a further embodiment of the invention. The rotating body includes two rollers rotating in the same direction and a screen which covers two rollers and of which the exposed portion changes as the rollers rotate. In this case, the screen may be formed of cloth of which the exposed portion can be changed as the rollers rotate.

The road guiding device of the invention is not limited to the above- described embodiments, but various modifications can. be made without departing from the scope of the present invention. Specifically, the position of the rotating body, that is, the position of the destination displaying section can be changed depending on the indication of the destination direction indicating section. Further, the rotating shaft supporting body can be formed in a depressed shape, not in a projecting shape.

Claims

[CLAIMS] [Claim ]

A road guiding device comprising: a case that is fixed to the upper portion of a post installed in the edge of a road or in the vicinity of a sidewalk and has a destination displaying portion perforated on a predetermined position of one surface thereof; a rotating body that is rotatably installed in the case and has more than two surfaces on which different destinations are respectively written, the rotating body being exposed through the destination displaying portion; and a rotating unit that rotates the rotating body, [Claim 2]

The road guiding device according to claim 1, wherein the rotating unit is composed of a motor and a combination of pulley and belt, a combination of serrated wheel and chain, or a gear, which is a transmission unit transmitting the torque of the motor to the rotating body, [Claim 3]

The road guiding device according to claim 1, wherein the one surface is a front or back surface, and the rotating body installed in the front surface and the rotating body installed in the back surface are installed at different heights by reference to the bottom surface of the case such that the rotation directions thereof are reverse to each other.