JP2005200998A - Road construction work indication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To lighten a road construction work indication device provided with an information display indicating information regarding the road construction works to be vertically movable. <P>SOLUTION: The information display 10 is supported to be vertically movable from a base body 2. A winding medium 22 is hooked on a winding body 21 rotatably supported from the base body 2. One end side of the winding medium 22 is connected to the information display 10 and a weight 23 is hung down at the other end side, and the information display 10 is urged upward. Since the weight of the information display 10 is canceled by the weight 23, the information display 10 can be vertically moved manually by a considerably smaller force than the actual weight and a driving source for driving the information display conventionally required is not required. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a road construction display device that displays information related to road construction, and more particularly to a road construction display device that can move up and down an information display section and is suitable as a portable type mounted on a vehicle such as a truck.

  Conventionally, this type of display device has been used to inform road vehicles and the like of road construction contents, cautions and regulations associated with road construction, and information on road construction such as construction companies. And since it is necessary to move an installation place with the movement of a construction site, in many cases, it is mounted and used on the loading platform of vehicles, such as a truck. For this reason, when the vehicle is running (during transportation), the information display part is lowered for the purpose of observing the height restriction and reducing the wind pressure, while the information display part is used when the vehicle is stopped. Is required to improve visibility. In addition, the information display portion is required to have a certain size in order to increase the visibility and to display more information. In general, it is inevitable that the information display part becomes heavier to some extent.

For this reason, conventionally, in many cases, the information display unit is moved up and down by the power of an electric motor, a hydraulic device, a pneumatic device, or the like (for example, see Patent Document 1).
JP 2001-109416 A

  For this reason, there is a problem that the entire road construction display device becomes very heavy. Along with this, there is also a problem that a vehicle having a large maximum load capacity must be used for a vehicle such as a truck mounted with a road construction display device.

  This invention is made | formed in view of such a conventional situation, and the objective of this invention is providing the road construction display apparatus which can be reduced in weight.

  Still other objects of the present invention will become apparent from the following description.

  A road construction display device according to the present invention includes a base body, an information display section that is supported by the base body so as to be movable up and down, and displays information relating to road construction, a winding body that is rotatably supported by the base body, and a winding body. A winding mediating node that is wound around the hanging body and linked at one end to the information display unit; Is provided.

  In the road construction display device of the present invention, the weight of the information display unit is offset by the weight of the weight. Therefore, by appropriately setting the weight of the weight, the information display unit can be applied with a force much smaller than its actual weight. Can be moved up and down manually. Therefore, since a power source for driving the information display unit and a driving source such as a power source for driving the power unit are not required, the device can be reduced in weight. Accordingly, it is possible to use a vehicle having a small maximum load capacity as a vehicle on which the road construction display device is mounted.

  The road construction display device can be reduced in weight. In addition, a vehicle such as a truck on which the road construction display device is mounted can be used with a small maximum load.

  Hereinafter, the present invention will be described based on embodiments shown in the drawings.

  1 to 20 show an embodiment of the present invention. Among these, FIG. 1 has shown the base | substrate 2 of the road construction display apparatus 1 in a present Example independently. The base body 2 includes a gantry 3, a pair of left and right columns 4 erected on the gantry 3, and a beam 5 passed between upper ends of the columns 4. The gantry 3 is provided with a work floor 6 on which an operator can work while standing. In addition, a generator (not shown) for supplying power to a part of the work floor 6 is used for lighting boxes 11, 12, 13 of the information display unit 10, which will be described later, a lightning plate 14, an arrow lightning unit 15, and the like. ) Can be installed. The left and right struts 4 are mainly composed of a square pipe member 7 and a groove member 8 which are connected to each other and are erected adjacently. As shown in FIGS. 4 and 13 to 16, the left and right support columns 4 are provided with a plurality of lock holes 9 inward in the vertical direction at appropriate intervals.

  FIG. 2 shows the information display unit 10 alone in this embodiment. The information display unit 10 is provided with first, second and third-stage internal illumination type lighting boxes 11, 12, 13 arranged side by side in the vertical direction, and in these lighting boxes 11, 12, 13, A lighting device (not shown) is incorporated. The translucent display surface 11a provided on the front surface of the first stage lighting box 11 has a construction contractor name, and the translucent display surface 12a provided on the front surface of the second stage lighting box 12 has a company. The site identification number is displayed on the name (construction operator name), its mark, and the translucent display surface 13a provided on the front surface of the third-stage lighting box 13. A lightning plate 14 is attached between the first-stage lighting box 11 and the second-stage lighting box 12, and this lightning plate 14 has a large number of pixels, and these pixels allow arbitrary characters, Symbols and figures can be displayed.

  At the top of the information display unit 10, there is provided an electric light display unit 15 such as an arrow for displaying a symbol or a figure such as an arrow and a chevron having an appropriate number of lamps 15a. 19 and 20 show an example of the operation of the electro-optical display unit 15 such as an arrow (the lighting lamp 15a has a grid pattern), FIG. 19 shows a state in which a leftward arrow is displayed, and FIG. 20 shows a leftward direction. The state of displaying the chevron is shown.

  Side covers 16 are attached to the left and right sides of the information display unit 10, and a tiger pattern is provided on the side covers 16 to call attention, and an appropriate number of flashing lamps 17 are provided. Are arranged side by side in the vertical direction. Further, on both the left and right sides of the information display unit 10, groove members 18 extending in the vertical direction are provided so as to be positioned behind the side cover 16. As shown in FIGS. 4 and 16 (partially enlarged view of FIG. 4), a rod-like lifting handle 19 made of a round pipe is attached in the lateral direction near the lower end of the back surface of the information display unit 10. Yes.

  3-7 has shown the whole road construction display apparatus 1 of a present Example, and the information display part 10 is supported by the base | substrate 2 so that raising / lowering is possible. Here, as well shown in FIG. 9 (an enlarged view of a part of the plan view of FIG. 7), the groove member 18 of the information display unit 10 is fitted in the groove member 8 of the support column 4. ing. A plurality of guide rollers 20 are interposed between the information display unit 10 and the base 2 in order to smoothly move the information display unit 10 up and down and to prevent the information display unit 10 from swinging during the up and down movement ( One of them is shown in FIG. As shown in FIGS. 1 and 10, sprockets 21 (wound bodies in the present embodiment) rotate around a rotation axis extending in the horizontal direction in the vicinity of the upper ends of the square pipe members 7 constituting the left and right support columns 4. Supported as possible. Although FIG. 10 shows only the right side, the sprocket 21 is also rotatably supported by the left column 4. A chain 22 (a winding intermediate node in this embodiment) is wound around the sprocket 21, and one end of the chain 22 is attached to the vicinity of the left and right lower ends of the information display unit 10. At the other end of the chain 22, a prismatic weight 23 having a quadrangular cross section is suspended in a square pipe member 7 constituting the left and right support columns 4 so as to be lifted and lowered. Urges the information display unit 10 upward. Note that the total weight of the left and right weights 23 is set to an appropriate amount smaller than the weight of the information display unit 10.

  A lever support plate 25 of the locking device 24 shown in FIGS. 11 to 14 is fixed to the back side of the information display unit 10. A lock lever 26 is supported on the lever support plate 25 so as to be rotatable about a rotation shaft 27 extending in the vertical direction. The distal end side of the lock lever 26 protrudes behind the information display unit 10 as shown in FIGS. On the base end side of the lock lever 26, base end portions of a pair of left and right lock rods 28 are rotatably supported at positions eccentric from the rotation shaft 27. As shown in FIGS. 13 to 15, each lock rod 28 penetrates the guide hole 32 provided in the groove member 18 of the information display unit 10 so as to be movable in the axial direction. When the lock lever 26 is rotated, the left and right lock rods 28 move (expand / contract) in the axial direction as shown in FIGS. In addition, since the coupling point between the lock rod 28 and the lock lever 26 performs a rotational motion around the rotation shaft 27 of the lock lever 26, strictly speaking, the lock rod 28 moves slightly in a direction other than the axial direction.

  Next, the operation of this embodiment will be described. Although this road construction display device 1 can be used without being mounted on a vehicle, it is necessary to move the installation location as the construction site moves, so in many cases it is mounted on the platform of a vehicle such as a truck. Used. FIG. 8 shows a state in which the road construction display device 1 is loaded on the loading platform of the truck 29. When the road construction display device 1 is actually used, it is necessary to stop the vehicle 29 and increase the height of the information display unit 10 as shown in FIGS. However, when the vehicle 29 is traveling (during transportation), it is necessary to lower the information display unit 10 as shown in FIGS. 17 and 18 in order to observe the height restriction and reduce the wind pressure.

  Here, in the road construction display device 1, the weight of the information display unit 10 is offset by the weight of the weight 23. Therefore, by setting the weight of the weight 23 appropriately, the information display unit 10 is made to have its actual weight. It can be moved up and down manually with much smaller force (specifically, the operation of manually moving up and down the information display unit 10 can be performed by the operator getting on the work floor 6 and holding the handle 19). Therefore, in this road construction display device 1, a power source for driving the information display unit 10 and a driving source such as a power source for driving the power device are not required, so that the road construction display device 1 can be reduced in weight. . As a result, a vehicle having the road construction display device 1 mounted thereon can be used with a small maximum load capacity.

  Further, in this embodiment, the weight 23 is accommodated in the support column 4 and is moved up and down in the support column 4, so that the apparatus can be miniaturized and the weight 23 is not exposed to the outside. It is safe.

  In the present embodiment, the lock lever 26 is rotated counterclockwise to a predetermined range as shown in FIG. 13 in a state where the information display unit 10 is in the lifted position corresponding to any pair of left and right lock holes 9. Then, the distal end portion of the lock rod 28 enters the arbitrary set of left and right lock holes 9, and the information display portion 10 is locked at the lifted position, while the lock lever 26 is reversed from this state as shown in FIG. When it is rotated in the direction and out of the predetermined range, the tip end portion of the lock rod 28 is detached from the lock hole 9 as shown in FIG. 10 will be in a state where it can be raised and lowered. As a result, the information display unit 10 can be fixed to the base 2 at an arbitrary position among a plurality of lift positions corresponding to the installation interval of the lock holes 9.

  In this embodiment, since the rod-like lifting handle 19 is provided in the lateral direction in the vicinity of the lock lever 26, the information display unit 10 is held at a fixed position by holding the lifting handle 19 with one hand. While operating the lock lever 26, the information display unit 10 can be locked and unlocked.

  Further, FIG. 17 shows a state where the information display unit 10 is lowered to the lower limit position. Even in this state, a slight gap 30 still remains between the lowermost part of the information display unit 10 and the base 2. It has become. Thereby, even if the operator lowers the information display unit 10 while keeping his feet directly under the information display unit 10, the information display unit 10 does not fall on the feet and does not damage the feet. It is safe.

  In the above-described embodiment, the sprocket 21 and the chain 22 are used. However, instead of the chain 22, other types of winding intermediate nodes such as a rope and a belt, and other types of pulleys such as a pulley instead of the sprocket 21 are used. It goes without saying that a wound body can also be used.

  The road construction display device of the present invention can be used without being mounted on a vehicle.

  As described above, the road construction display device according to the present invention is useful as a road construction display device that displays information related to road construction.

It is a perspective view which shows independently the base | substrate in one Example of the road construction display apparatus by this invention. It is a perspective view which shows the information display part in the said Example independently. It is a perspective view which shows the whole road construction display apparatus in the said Example seeing from the diagonally forward side. It is a perspective view which shows the road construction display apparatus whole in the said Example seeing from diagonally back side. It is a front view which shows the whole road construction display apparatus in the said Example. It is a side view which shows the whole road construction display apparatus in the said Example. It is a top view which shows the whole road construction display apparatus in the said Example. It is a side view which shows the state which loaded the whole road construction display apparatus in the said Example on the loading platform of a truck. FIG. 8 is an enlarged plan view showing a part of FIG. 7 in an enlarged manner. FIG. 3 is an enlarged longitudinal sectional view showing the vicinity of a sprocket, a chain and a weight in the embodiment. It is a perspective view which shows the locking device which locks an information display part in the said Example. It is an enlarged plan view showing a part of the locking device. It is a cross-sectional view which shows the locking device vicinity of the said Example in a locked state. It is a cross-sectional view which shows the lock device vicinity of the said Example in a lock release state. FIG. 15 is an enlarged cross-sectional view showing a part of FIG. 14 in an enlarged manner. It is an expansion perspective view which expands and shows a part of FIG. It is a front view which shows the whole road construction display apparatus in the said Example in the state which lowered | hung the information display part to the minimum position. It is a side view which shows the whole road construction display apparatus in the said Example in the state which lowered | hung the information display part to the minimum position. It is a front view which shows the operation example of the electroluminescent display part, such as an arrow, in the said Example. It is a front view which shows the other example of an operation | movement of the said electroluminescent display parts, such as an arrow.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Road construction display apparatus 2 Base | base 4 Support | pillar 9 Lock hole 10 Information display part 19 Lifting handle 21 Sprocket (wrapping body)
22 Chain (wrapping mediation)
23 Weight 26 Lock lever 28 Lock rod

Claims (5)

A base body, an information display unit for displaying information on road works supported by the base body so as to be movable up and down, a winding body rotatably supported by the base body, and one end side wound around the winding body A road construction display device comprising: a winding intermediate node linked to the information display unit; and a weight suspended from the other end of the winding intermediate node and biasing the information display unit upward . The road construction display device according to claim 1, wherein the base body has a pair of left and right support columns that support the information display unit to be movable up and down. The road construction display device according to claim 1 or 2, wherein the weight is accommodated in the support column and can be moved up and down in the support column. A plurality of lock holes provided on the left and right sides of the base body at intervals in the vertical direction, a lock lever rotatably supported by the information display unit, and a pivot lever linked to the lever. And a pair of left and right lock rods that move in the axial direction, and the lock lever is moved to a predetermined range in a state where the information display portion is in a lift position corresponding to any one of the left and right sets of the lock holes. When it is rotated, the tip of the lock rod enters the one set of left and right lock holes, and the information display unit is locked at the lifted position, while the lock lever is rotated outside the predetermined range. The road construction display device according to claim 1, 2 or 3, wherein when moved, the tip end portion of the lock rod is disengaged from the lock hole and the information display portion can be moved up and down. The road construction display device according to claim 4, further comprising a lifting handle attached to the information display unit in the vicinity of the lock lever for manually lifting the information display unit.

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