WO2013001918A1

WO2013001918A1 - Trailer-type signaling vehicle

Info

Publication number: WO2013001918A1
Application number: PCT/JP2012/061958
Authority: WO
Inventors: 俊明藤田
Original assignee: 名古屋電気工業株式会社
Priority date: 2011-06-30
Filing date: 2012-05-10
Publication date: 2013-01-03
Also published as: CN203211167U

Abstract

Provided is a trailer-type signaling vehicle such that information displayed on a display unit can be easily visually recognized. The trailer-type signaling vehicle is provided with a carriage unit and a board-shaped display unit rotatably mounted on the carriage unit. Because the display unit is rotatably mounted on the carriage unit, the trailer-type signaling vehicle can travel while the display unit is rotated in a direction such that safety and travel stability can be ensured. Further, a sign can be displayed on the display unit while the display unit is rotated in a direction such that the information can be visually recognized. Thus, the visibility at the time of information display and the safety and travel stability during travel can be satisfied in a balanced manner.

Description

Towed vehicle

The present invention relates to a towed sign vehicle, and more particularly to a towed sign vehicle having a display unit.

A labeling device is known in which a display unit is mounted on a truck bed so as to be movable up and down (see Patent Document 1). In this sign device, by raising the display unit, the display unit can be easily seen from a distance.

JP 2000-110122 A

However, in the case of Patent Document 1, because of legal and safety reasons, the display unit cannot travel on the road in a state where it protrudes from the truck in the vehicle width direction. There was a problem that it had to be made smaller. That is, there is a problem that the width of the display portion is small and information displayed on the display portion (for example, information such as “work in progress”, “lane-controlled traveling caution”, etc., hereinafter simply referred to as information) is difficult to visually recognize. was there. The present invention has been made to solve the above-described problems, and an object thereof is to provide a towable sign vehicle in which information displayed on a display unit is easy to visually recognize.

In order to achieve the above object, the towed sign vehicle of the present invention includes a cart unit to be pulled by the vehicle and a plate-like display unit that is rotatably mounted on the cart unit. Since the display unit is rotatably mounted on the carriage unit, the towed sign vehicle can be driven by rotating the display unit in a direction that can ensure safety and running stability. Furthermore, information can be displayed on the display unit by rotating the display unit in a direction that can be viewed by the driver of the vehicle traveling on the road. That is, it is possible to achieve both ensuring of visibility when displaying information on the display unit and safety and running stability during running.

By rotating the display unit so as to be parallel to the vehicle length direction, the tow-type sign vehicle can be driven with the minimum air resistance of the display unit. In this state, if the width of the display unit is set to be inside the carriage unit, the towed sign vehicle can be driven without the display unit protruding from the carriage unit. Therefore, it is possible to ensure safety and running stability when the tow type sign vehicle is running. On the other hand, park the tow type sign vehicle and rotate the display unit so that the display unit is vertical (parallel to the vehicle width direction) with respect to the vehicle length direction of the carriage unit. A display part can be visually recognized. In this state, if the width of the display unit protrudes outside the carriage unit in the vehicle width direction, the displayed information can be easily seen from other vehicles traveling.

Further, when the display unit is rotated so that the display unit is perpendicular to the vehicle length direction of the carriage unit, the position of one end of the display unit coincides with the position of one end of the carriage unit in the vehicle width direction. You may do it. In other words, by matching the position of one end of the display unit with the position of one end of the carriage unit, when the towed sign vehicle is parked on the road shoulder and information is displayed, the vehicle travels on the side opposite the road shoulder (running lane side). It is possible to prevent other vehicles from obstructing the running.

Moreover, the display unit may be moved up and down on the carriage unit. Visibility from a distance can be improved by raising the display portion. On the other hand, by lowering the display unit, the center of gravity between the carriage unit and the display unit can be lowered, and traveling stability can be improved. Furthermore, the display unit can be rotated at a low position and the display unit can be stably rotated by providing the elevating unit on the rotary table that rotates with respect to the carriage unit.

Also, the center of gravity of the tow-type sign vehicle may be lowered by lifting the display unit with a winch and providing the winch at a low position. That is, a connection part is provided in a display part and a raising / lowering wire is connected in the said connection part. And the support | pillar which attached the pulley above the raising / lowering range of a connection part is provided, and the winch which winds up / down wire below the said pulley is provided. In such a configuration, if the winding amount of the lifting wire in the winch is increased, the connecting portion of the display portion can be brought closer to the upper pulley, and the display portion can be raised. On the contrary, if the winding amount of the lifting wire in the winch is decreased, the connecting portion of the display portion can be separated from the pulley, and the display portion can be lowered. Here, since the heavy winch is provided below the pulley, the center of gravity of the elevating part can be lowered.

Further, at least two positioning wires that connect each of the two positioning portions sandwiching the connecting portion in the width direction in the display portion and the carriage portion may be provided. If each of the positioning wires is in a tension state when the display unit is parallel to the cart unit and rises to a predetermined height, the display unit is parallel to the cart unit and has a posture that has been raised to a predetermined display height. Can be kept stable. By displaying the information by raising the display unit to the display height, the information can be displayed in a stable posture. The tension state means a state in which positive tension acts on the positioning wire. Moreover, what is necessary is just to provide at least two positioning wires which connect each of the two positioning parts which pinch | interpose a connection part in the width direction in a display part, and a trolley | bogie part, and three or more positioning wires may be provided.

The towed sign vehicle of the present invention can achieve both ensuring of visibility when displaying information on the display section and safety and running stability during running.

(1A) is a plan view of the towed beacon vehicle during travel, and (1B) is a plan view of the towed beacon vehicle during information display. (2A) is a side view of the towed beacon vehicle during travel, and (2B) is a side view of the towed beacon vehicle during information display. It is a front view of the tow-type sign vehicle at the time of information display. It is a fragmentary perspective view of a tow type marker vehicle. It is an operation | movement schematic diagram of a tow-type sign vehicle.

Here, embodiments of the present invention will be described in the following order.
(1) Configuration of towed sign vehicle:
(2) Installation procedure for towed sign vehicles:
(3) Other embodiments:

(1) Configuration of towed sign vehicle:
FIG. 1A is a plan view of the towed beacon vehicle 1 during travel, and FIG. 1B is a plan view of the towed beacon vehicle 1 during information display. FIG. 2A is a left side view of the towed beacon vehicle 1 during travel, and FIG. 2B is a left side view of the towed beacon vehicle 1 during information display. FIG. 3 is a front view of the tow-type beacon vehicle 1 at the time of information display (a front view seen from a driver of another vehicle traveling and a view seen from the rear in the vehicle length direction). FIG. 4 is a partial perspective view of the towed sign vehicle 1.

The towed sign vehicle 1 is towed by a tow vehicle (not shown) and travels in the vehicle length direction (front and rear). A direction orthogonal to the vehicle length direction is indicated as a vehicle width direction (left and right). The towed sign vehicle 1 includes a carriage unit 2, a display unit 3, a rotary table 4, and an elevating unit 5. In the following, when the front-rear and left-right directions are indicated, the directions parallel to the road surface on which the towed sign vehicle 1 travels are indicated unless otherwise indicated. Moreover, when showing an up-down direction, unless otherwise indicated, it shall point out the direction perpendicular | vertical with respect to the road surface on which the tow type marker vehicle 1 drive | works. Furthermore, raising / lowering means moving up and down.

The cart unit 2 has a rectangular plate-shaped main body, and includes a wheel 21 (a chain line in FIGS. 1A and 1B), an outrigger 22, a power source mounting unit 23, a positioning wire 24, a pulling unit 25, a jack 26, and a holding unit 27. Is provided. The following description will be made on the assumption that the main body of the carriage unit 2 is held parallel to the road surface. A pair of left and right wheels 21 are provided, each having a rotation axis in the vehicle width direction. Further, the rotation axes of the wheels 21 are on the same straight line. Thereby, the trolley | bogie part 2 can drive | work to a vehicle length direction. The wheel 21 is provided with a manual brake (not shown), and the wheel 21 is braked by operating the manual brake. The outriggers 22 are respectively provided at the four corners of the main body portion of the carriage unit 2 and project vertically downward from the main body unit of the carriage unit 2. The outrigger 22 is provided so as to be slidable in the vertical direction with respect to the main body of the carriage unit 2, and a lock pin (not shown) that fixes the outrigger 22 to the main body of the carriage 2 at a plurality of sliding positions. Is provided. Thereby, the length which the outrigger 22 protrudes from the main-body part of the trolley | bogie part 2 can be adjusted. 2B, the sheeting plate 6 is inserted between the lower end of the outrigger 22 and the road surface. The sheeting plate 6 is formed of an elastic material such as synthetic resin or rubber, for example, and has an effect of preventing rattling caused by direct contact between the lower end of the outrigger 22 and the road surface and protecting the road surface.

The power supply mounting portion 23 is a rectangular frame having a predetermined height protruding upward from the main body of the carriage unit 2, and a power supply device (generator, battery, etc.) having an outer shape slightly smaller than the rectangular frame is mounted on the power supply. The placement unit 23 can stably place the device. Four positioning wires 24 are provided, and each one end 24 a is fixed to four corners of the main body of the carriage unit 2. The positioning wire 24 whose one end 24a is fixed to the right front corner of the main body of the carriage unit 2 and the other end 24b of the positioning wire 24 whose one end 24a is fixed to the left rear corner of the main body of the cart unit 2 are respectively displayed. It is fixed to the positioning part 36 provided at the bottom of the part 30 so as not to be detachable. On the other hand, the positioning wire 24 whose one end 24 a is fixed to the left front corner of the main body portion of the carriage unit 2 and the other end 24 b of the positioning wire 24 whose one end 24 a is fixed to the right rear corner of the main body portion of the cart unit 2 are In addition, a hook 24b1 that can be attached to and detached from the positioning portion 36 provided at the bottom of the display unit 30 is provided.

The towing unit 25 projects forward from the front end of the main body of the carriage unit 2 and includes a connecting mechanism for connecting to the towing vehicle at the tip. The jack 26 is provided in the traction part 25 of the carriage part 2 and adjusts the height of the front end part of the body part of the carriage part 2 by extending and contracting in the vertical direction while bringing the wheel 26a at the lower end into contact with the road surface. Further, the jack 26 is rotatably provided to be in a state perpendicular to the road surface (FIG. 2B) and in a state parallel to the road surface (FIG. 2A), and is parallel to the road surface when not in use. State. On the other hand, in use, the jack 26 is in a state perpendicular to the road surface and expands and contracts in a direction perpendicular to the road surface. As shown in FIG. 1B, a holding portion 27 is provided at each of predetermined locations (four) on the main body portion of the carriage portion 2. Each of the holding portions 27 is a rectangular frame having a predetermined height that protrudes upward from the main body portion of the carriage unit 2, and the tip of the leg portion 34 of the display unit 3 slightly smaller than the rectangular frame enters inside, The movement of the leg 34 of the display unit 3 is restricted in the horizontal direction.

The display unit 3 includes a display surface 31, a warning light 32, a runner 33, a leg 34, a positioning unit 36, and a communication unit 35. The display unit 3 is formed in a rectangular plate shape, and includes a display surface 31 on one surface (right during traveling and rearward in the traveling direction during information display). The display surface 31 is a surface on which a plurality of LEDs are arranged in a matrix and occupies almost the entire area of one surface of the display unit 3. The direction parallel to the road surface and perpendicular to the display surface 31 is the thickness (direction) of the display unit 3, and the direction parallel to the road surface and parallel to the display surface 31 is the width of the display unit 3 ( Direction). The direction perpendicular to the road surface is defined as the height (direction) of the display unit 3. A pair of warning lights 32 are provided on the upper portion of the display unit 3.

As shown in FIGS. 1A and 1B, the width DW of the display unit 3 is shorter than the length CL in the vehicle length direction of the main body part (excluding the towing part 25) of the carriage part 2, and the vehicle of the main body part of the carriage part 2 It is longer than the width CW in the width direction.

As shown in FIGS. 2B and 4, a joint portion 33 b extends from the runner 33 toward the display portion 3, and the joint portion 33 b is shown inside the display portion 3 at the center lower portion on the opposite side of the display surface 31. Not joined to the frame. The runner 33 is connected to a tip 54 a of a lifting wire 54 provided in the lifting unit 5, and is held so as to be able to travel along a column 52 provided in the lifting unit 5. Since the runner 33 is joined to the display unit 3 via the joint portion 33 b, the runner 33 moves up and down along the support column 52, so that the display unit 3 also moves up and down integrally with the runner 33. A handle holder (not shown) is provided at an end in the width direction opposite to the display surface 31 of the display unit 3, and the handle holder stores a handle for winding a winch 51 provided in the elevating unit 5. Four leg portions 34 are provided and project downward from the display portion 3. The distal ends of the leg portions 34 are respectively held by holding portions 27 provided in the main body portion of the carriage unit 2 during traveling.

The display unit 3 includes a display control board (not shown) and a power cable (not shown) connected to the display control board. The power cable may be connected to a commercial power supply, or may be connected to a power supply device mounted on the power supply mounting unit 23. Further, the display control board generates a DC power source necessary for lighting the LED from an AC power source having a frequency of 50/60 Hz. Of course, the display control board may be supplied with a DC power from an external battery or the like. The communication unit 35 includes a circuit for performing data communication via the mobile phone communication network, and outputs display data received by the circuit to the display control board. The display control board controls the lighting of the plurality of LEDs based on the display data, whereby information based on the display data is displayed on the display surface 31. Four positioning portions 36 are provided at the bottom of the display portion 30, and the positioning wires 24 are fixed to each of the positioning portions 36.

As shown in FIG. 4, the turntable 4 includes a base portion 41, a rotating portion 42, a ball bearing 43 (shown by a broken line), and a bearing structure 44 (shown by a broken line). The base portion 41 is formed in a rectangular plate shape, and is provided at a position ahead of the rotating shaft of the wheel 21 on the main body portion of the carriage portion 2. Note that the base portion 41 may be detachably joined to the main body portion of the carriage portion 2, and may be joined by, for example, a T-shaped screw or a wing screw that can be tightened without using a tool. Further, since the base portion 41 and the main body portion of the cart unit 2 are in contact with each other, the base unit 41 is stably held on the main body unit of the cart unit 2.

The rotating part 42 is formed in a disk shape. The base portion 41 and the rotating portion 42 are rotatably connected via a plurality of ball bearings 43 and a bearing structure 44. Since the base portion 41 and the rotating portion 42 are plate-shaped and face each other over a wide range, a plurality of ball bearings 43 can be arranged in a wide range between the base portion 41 and the rotating portion 42. The bearing structure 44 constitutes a rotating shaft in a direction perpendicular to the road surface, and the ball bearing 43 reduces the frictional resistance between the base portion 41 and the rotating portion 42. The elevating part 5 is joined on the rotating part 42. Thereby, the raising / lowering part 5 and the display part 3 connected with the raising / lowering part 5 can be rotated around the rotating shaft of the direction perpendicular | vertical to a road surface. Fixing

holes

41a and 42a penetrating the base portion 41 and the rotating portion 42 are provided, and by inserting a fixing pin (not shown) into the fixing

holes

41a and 42a, the rotation of the rotating portion 42 with respect to the base portion 41 is prevented. . Further, as shown in FIG. 1A, the position SP (shown by a black circle) of the rotary table 4 in the vehicle width direction of the carriage unit 2 is half the width DW of the display unit 3 from the right end of the main body of the carriage unit 2. The position is on the left side by / 2. The position SP of the rotation axis of the turntable 4 in the vehicle length direction of the carriage unit 2 is inside the half DW / 2 of the width of the display unit 3 from the front and rear ends of the main body (excluding the pulling unit 25) of the carriage unit 2. The position of

As shown in FIG. 4, the elevating unit 5 includes a winch 51, a support column 52, a pulley 53, an elevating wire 54, and an auxiliary pulley 55. The winch 51 can be fitted with a handle held by a handle holder, and the amount of winding of the elevating wire 54 around the winding core is adjusted by manually rotating the handle. Further, the winch 51 is provided with a latch mechanism for preventing reverse rotation, and the winding core is prevented from rotating in the direction in which the lifting wire 54 is unwound only by the tension of the lifting wire 54 (without operating the handle). Is done. Two support columns 52 are provided, and each protrudes upward from the upper surface of the rotating portion of the rotary table 4. In addition, you may provide the protective cover which covers the winch 51 and the raising / lowering wire 54 so that a hand etc. may not be caught in the raising / lowering wire 54 during an operation | work.

Each of the support columns 52 has a substantially U-shaped horizontal cross section and opens toward the inner side in the width direction of the display unit 3. The support column 52 protrudes to a position higher than the winch 51. A connecting portion that connects the upper ends of the two support columns 52 is provided, and a pulley 53 is rotatably attached at the midpoint of the connecting portion. A lifting wire 54 unwound from the winch 51 is hung on the pulley 53. Further, an elevating wire 54 is hung on the auxiliary pulley 55 between the winch 51 and the pulley 53. The auxiliary pulley 55 is provided at the same height as the winch 51 at the center of the two columns. Accordingly, the elevating wire 54 is unwound approximately horizontally from the winch 51 toward the auxiliary pulley 55, and the direction is changed from the auxiliary pulley 55 toward the upper pulley 53.

As shown in FIG. 4, the tip 54a of the lifting wire 54 is connected to a runner 33 as a connecting portion. The runner 33 includes wheels 33 a (schematically illustrated by broken lines) that run up and down in the hollow portions of the two columns 52, and can be moved up and down along the columns 52. In other words, each of the columns 52 forms a guide rail that guides the running of the runner 33. The lift range of the runner 33 substantially corresponds to the height range of the support column 52 and is lower than the pulley 53 provided at the height of the upper end of the support column 52. That is, the runner 33 to which the tip 54 a of the elevating wire 54 is connected is present at a position lower than the pulley 53. The direction of the lifting / lowering wire 54 is converted by the pulley 53 by approximately 180 degrees. Here, the runner 33 to which the tip 54 a of the lifting wire 54 is connected is a portion protruding from the display unit 3, and the tip 54 a of the lifting wire 54 connected to the runner 33 is pulled downward by the weight of the display unit 3. On the other hand, the display unit 3 can be raised by winding the elevating wire 54 with the winch 51. In addition, since the winding core of the winch 51 is latched by the latch mechanism, the display unit 3 is not unexpectedly lowered by the weight of the display unit 3.

A pair of upper and lower pin holes 52a are formed on a side surface of the support column 52 (side surface in the width direction of the display unit 3), and a pinning wire 52b is provided. One end of the pinning wire 52b is fixed to an attachment position at an intermediate height between the upper and lower pin holes 52a, and a runner fixing pin is attached to the other end. The pinning wire 52b is formed slightly longer than the distance between the mounting position and the upper and lower pin holes 52a, and the runner fixing pin can be inserted into each of the pair of upper and lower pin holes 52a. A pin hole (not shown) having the same diameter as the pin hole 52a is formed on the side surface of the runner 33 (the side surface in the width direction of the display unit 3). When the runner 33 is raised until it contacts the pulley 53 of the support column 52, the position of the pin hole 52a above the support column 52 and the position of the pin hole of the runner 33 are aligned in the width direction of the display unit 3. It becomes. At this time, the runner 33 can be fixed at a position in contact with the pulley 53 by inserting a fixing pin of the pinning wire 52b so as to penetrate both the pin hole 52a of the support column 52 and the pin hole of the runner 33. . Thereby, even when the latch mechanism of the winch 51 is damaged, it is possible to prevent the display unit 3 from descending unexpectedly due to the weight of the display unit 3. On the other hand, when the runner 33 is lowered to the lower end of the support column 52, the position of the pin hole 52 a below the support column 52 and the position of the pin hole of the runner 33 are aligned in the width direction of the display unit 3. Therefore, the runner 33 can be fixed also at the position of the lower end of the column 52.

(2) Installation procedure for towed sign vehicles:
As shown in FIG. 1A and FIG. 2A, the display unit 3 is rotated so that the width direction of the display unit 3 is parallel to the vehicle length direction of the carriage unit 2 when the towed sign vehicle 1 is traveling. . Further, the display unit 3 is lowered. Since the display unit 3 is connected to the elevating unit 5 by the central runner 33 in the width direction, the width of the display unit 3 extends from the position SP of the rotation axis of the rotary table 4 by DW / 2. Here, the width DW of the display unit 3 is shorter than the length CL in the vehicle length direction of the main body of the carriage unit 2, and the position SP of the rotary shaft of the rotary table 4 in the vehicle length direction of the carriage unit 2 is 2 from the front and rear ends of the main body 2, respectively, and a position inside the half DW / 2 of the width of the display unit 3. Therefore, when traveling, the width of the display unit 3 can be stored inside the main body of the carriage unit 2 in the vehicle length direction. That is, the width of the display unit 3 can be prevented from protruding from the main body of the carriage unit 2 in the vehicle length direction, and the towed sign vehicle 1 can be safely driven. Further, by rotating the display unit 3 so that the width direction of the display unit 3 is parallel to the vehicle length direction of the carriage unit 2, the air resistance of the display unit 3 can be reduced, Stable driving is possible while improving fuel efficiency. Further, by lowering the display unit 3, the center of gravity of the towed sign vehicle 1 can be lowered to improve running stability.

Hereinafter, procedures (S1) to (S15) from when the vehicle is running to when the tow-type sign vehicle 1 is stopped at the shoulder of the road and information is displayed will be described.
(S1) The tow vehicle that pulls the tow type sign vehicle 1 is parked at a desired position on the road shoulder.
Thereby, the tow-type sign vehicle 1 towed by the tow vehicle is also parked behind the tow vehicle on the road shoulder. In addition, if a tow vehicle travels along a driving lane and parks on the road shoulder as it is, the vehicle length direction of the towed sign vehicle 1 is substantially parallel to the direction of the driving lane.

(S2) The wheel 21 is manually braked.
(S3) The jack 26 supports the front of the main body of the carriage unit 2 on the road surface.
(S4) The connection with the towing vehicle in the towing unit 25 is released.
By these procedures, the vertical restraint of the towing unit 25 by the towing vehicle is lost. Here, since the base part 41 that supports the weight of the display unit 3 and the elevating part 5 is provided at a position ahead of the rotation axis of the wheel 21, the center of gravity of the towed sign vehicle 1 is higher than the rotation axis of the wheel 21. It is ahead. Therefore, when the connection with the towing vehicle is released, the front of the main body of the carriage unit 2 tends to descend due to the rotational movement of the wheel 21 around the rotation axis, but the front of the main body of the carriage unit 2 is supported by the jack 26. Therefore, the attitude of the towed sign vehicle 1 can be maintained. Since the center of gravity of the towed beacon vehicle 1 is ahead of the rotational axis of the wheel 21, the center of gravity of the towed beacon vehicle 1 is between the rear wheel of the towed vehicle and the wheel 21 during towing traveling. Therefore, the running stability of the towed sign vehicle 1 can be improved.

(S5) The rear outrigger 22 and the seating plate 6 are installed.
Since the center of gravity of the towed sign vehicle 1 is ahead of the rotation axis of the wheel 21, the rear of the main body of the carriage unit 2 can be lifted upward by shortening the jack 26. Then, the rear outrigger 22 is adjusted to a desired length, and the seating plate 6 is inserted between the rear outrigger 22 and the road surface.

(S6) The front outrigger 22 and the seating plate 6 are installed.
When the rear seating plate 6 and the outrigger 22 are installed, the jack 26 is then lengthened to lift the front of the main body of the carriage unit 2 upward. Then, the rear part of the main body part of the carriage part 2 is lowered, the rear outrigger 22 is grounded on the sheeting plate 6, and the rear part of the main body part of the carriage part 2 is supported on the road surface via the outrigger 22. In addition, by making the jack 26 longer, the front outrigger 22 is adjusted to the same length as the rear outrigger 22 after the front is higher than the rear of the main body of the carriage unit 2 relative to the road surface. The sheeting plate 6 is inserted between the front outrigger 22 and the road surface. Then, by shortening the jack 26 again, the front part of the main body part of the carriage part 2 is lowered, and the front outrigger 22 is grounded on the seating plate 6. By the above procedure, the main body portion of the carriage unit 2 can be supported on the road surface by the front and rear outriggers 22 and the sheeting plate 6. In addition, since the thickness of the four sheeting plates 6 is uniform, the main body part of the cart part 2 can be made parallel to the road surface by making the lengths of the four outriggers 22 uniform. Moreover, it is desirable to adjust the length of the outrigger 22 so that the wheel 21 floats from the road surface. That is, the sum of the length of the lower portion of the outrigger 22 and the thickness of the seating plate 6 is longer than the height at which the main body of the cart 2 is supported in parallel from the road surface by the wheels 21. It is desirable to adjust the length of the outrigger 22 as described above. However, the wheel 21 does not necessarily have to float from the road surface, and the carriage unit 2 may be supported from the road surface by the four outriggers 22 and the wheels 21.

(S7) Set the power supply.
When there is no commercial power supply, the power supply device is mounted on the power supply mounting portion 23. If there is a commercial power source, (S7) is omitted.

(S8) The handle is set on the winch 51.
Here, the handle is taken out from the handle holder, and the handle is attached to the winch 51.
(S9) The runner 33 is unlocked.
FIGS. 5A to 5C are operation schematic diagrams showing a state in which the display unit 3 is lifted as viewed from the outside in the width direction of the display unit 3. FIG. The arrows shown in FIGS. 5A to 5C indicate the movement of the lifting wire 54. When the towed sign vehicle 1 is traveling, the display unit 3 is lowered as shown in FIG. 5A in order to improve the running stability by making the center of gravity of the towed sign vehicle 1 as low as possible. In other words, with the runner 33 lowered to the lower end of the support column 52, the fixing pin of the pinning wire 52b is inserted into the pin hole 52a below the support column 52 and the pin hole of the runner 33 shown in FIG. By extracting the fixing pin from the pin hole 52a, the fixing of the runner 33 can be released. In the state where the display unit 3 is lowered, the tips of the four leg portions 34 of the display unit 3 are respectively held by four holding units 27 provided at predetermined positions of the main body unit of the carriage unit 2. Therefore, it can drive | work, hold | maintaining the display part 3 stably.

(S10) The display unit 3 is raised to the temporarily fixed height.
Next, the elevating wire 54 is wound up by the winch 51 to raise the runner 33 connected to the tip 54a of the elevating wire 54 to a predetermined temporary fixing height as shown in FIG. 5B. The temporary fixing height refers to the height of the runner 33 that is a predetermined amount below the height of the runner 33 that contacts the pulley 53. Thereby, the display part 3 raises. Although the winch 51 is positioned below the pulley 53, the runner 33 can be lifted below the pulley 53 because the runner 33 is lifted upward by the pulley 53 provided at the upper end of the support column 52. Since the winch 51 itself does not have to be provided at a high position, the center of gravity of the towed sign vehicle 1 can be lowered to improve running stability. Further, the winch 51 is a manual winch, and it is not necessary to provide a motor for driving the winch 51. Therefore, the towed sign vehicle 1 can be reduced in weight. As shown in FIG. 1A, the elevating unit 5 is located on the left side of the display unit 3 during traveling. Therefore, when the tow type sign vehicle 1 is installed on the shoulder of the left-hand road, the procedures (S8) to (S10) can be performed safely by operating the elevating unit 5 from the shoulder side.

(S11) The display unit 3 is rotated.
Here, as shown in FIG. 1B, the display unit 3 is rotated so that the width direction of the display unit 3 is perpendicular to the vehicle length direction of the carriage unit 2. That is, the display unit 3 is rotated clockwise by 90 degrees (plan view) from the traveling state. Thereby, the width direction of the display part 3 becomes parallel to the vehicle width direction of the main body part of the carriage part 2. At this time, the positions of the fixing

holes

41a and 42a penetrating the base portion 41 and the rotating portion 42 shown in FIG. 4 coincide with each other, and the fixing pin 41 is inserted into the fixing

holes

41a and 42a, thereby rotating with respect to the base portion 41. The part 42 is fixed.

Here, since the width DW of the display unit 3 is longer than the width CW in the vehicle width direction of the main body part of the carriage unit 2, the width of the display unit 3 protrudes from the main body part of the carriage unit 2 in the vehicle width direction. . Therefore, the display width on the display surface 31 of the display unit 3 can be ensured without being limited to the width of the carriage unit 2 in the vehicle width direction, and information visibility can be improved. Further, as shown in FIG. 1A, the position SP of the rotary shaft of the turntable 4 in the vehicle width direction of the carriage unit 2 is a position on the left side by a half DW / 2 of the width of the display unit 3 from the right end of the main body of the carriage unit 2. It is said. Therefore, as shown in FIGS. 1B and 3, the right end position of the carriage unit 2 and the right end position of the display unit 3 coincide with each other in the vehicle width direction. That is, the width of the display unit 3 protrudes only from the main body of the carriage unit 2 to the left side in the vehicle width direction. When the towed sign vehicle 1 is installed on the shoulder of a left-handed road, the left side is the shoulder as shown in FIG. 3, so the width of the display unit 3 protrudes only on the shoulder side, and the display unit 3 on the traveling lane side. The width of can be prevented from protruding. Accordingly, it is possible to prevent the other vehicles from traveling in the travel lane.

When the display unit 3 is rotated, a frictional resistance is generated between the base unit 41 and the rotating unit 42 of the rotary table 4, and a horizontal stress is generated by the frictional resistance. Since the rotary table 4 for rotating the display unit 3 is provided so as to be in close contact with the main body unit of the carriage unit 2 below the lifting unit 5, horizontal stress due to frictional resistance is generated at a low position, and the display unit 3 is rotated. It is possible to improve the stability of the tow-type beacon vehicle 1 during the operation. In addition, the center of gravity of the towed sign vehicle 1 can be lowered by the weight of the turntable 4. Further, the base part 41 and the rotary part 42 of the rotary table 4 are formed in a plate shape and face each other over a wide range, so that the display part 3 can be stably supported.

(S12) The positioning wire 24 is attached to the display unit 3.
As shown in FIG. 1B, the other end 24 b of the two positioning wires 24 whose one end 24 a is fixed to the right front corner and the right rear corner of the main body of the carriage unit 2 is the width direction of the bottom of the display unit 3 after the rotation. Are fixed to the two positioning portions 36 provided at the right end of each. Among these, the other end 24 b of the positioning wire 24 whose one end 24 a is fixed to the right front corner of the main body of the carriage unit 2 is fixed in advance to the positioning unit 36 at the right end of the display unit 3 in a non-detachable manner. On the other hand, the other end 24b of the positioning wire 24 whose one end 24a is fixed to the right rear corner of the main body of the carriage unit 2 is not fixed to the positioning unit 36 on the right end of the display unit 3 in advance. In FIG. 5, the positioning portion 36 is fixed by the hook 24b1. As shown in FIG. 1B, the right end positioning portion 36 of the display unit 3 moves to the main body of the carriage unit 2 on the locus R on the right front corner side (two-dot chain line) and is close to the right front corner of the main body. Keep position. Therefore, even if the other end 24b of the positioning wire 24 whose one end 24a is fixed to the right front corner of the main body of the carriage unit 2 is fixed to the positioning unit 36 on the right end of the display unit 3 in advance, the display unit 3 can be rotated. There is no hindrance. On the other hand, the positioning unit 36 at the right end of the display unit 3 moves to a position far from the right rear corner (relative to the length of the positioning wire 24) with respect to the main body unit, particularly in the initial stage of rotation. In order not to prevent the rotation, the positioning portion 36 is fixed by the hook 24b1 after the rotation.

The other end 24b of the two positioning wires 24 whose one end 24a is fixed to the left front corner and the left rear corner of the main body of the carriage unit 2 are also two positionings provided on the left side in the width direction of the bottom of the display unit 3. It is fixed to the part 36. The positioning part 36 on the left side of the display part 3 moves to the main body part of the carriage part 2 on the locus L (two-dot chain line) on the left rear corner side, and keeps a position close to the left rear corner of the main body part. Therefore, the other end 24 b of the positioning wire 24 whose one end 24 a is fixed to the left rear corner of the main body of the carriage unit 2 is fixed to the left positioning unit 36 of the display unit 3 in a non-detachable manner. On the other hand, the other end 24b of the positioning wire 24 whose one end 24a is fixed to the left front corner of the main body of the carriage unit 2 is not fixed in advance to the left positioning unit 36 of the display unit 3, and after rotation, The positioning portion 36 is fixed by the hook 24b1. As described above, by attaching only two of the four positioning wires 24 to the positioning unit 36 of the display unit 3 after the rotation, the labor of the user can be reduced. In addition, you may provide the fixing mechanism which fixes so that the positioning wire 24 with which the hook 24b1 was provided may not run out at the time of driving | running | working.

(S13) The display unit 3 is raised to the display height.
Next, the raising / lowering wire 54 is again wound up by the winch 51, and as shown to FIG. 5C, the display part 3 is further raised from a temporary fix position. That is, the display unit 3 is raised to the display height by raising the runner 33 until it abuts against the pulley 53. Then, as shown in FIG. 2B, the positioning unit 36 of the display unit 3 and the main body unit of the cart unit 2 are further separated in the vertical direction, and at the four corners of the positioning unit 36 of the display unit 3 and the main unit unit of the cart unit 2. The four positioning wires 24 to which both ends 24a and 24b are fixed are in tension. The length of the positioning wire 24 is set to a length that is uniformly tensioned when the display unit 3 rises to a predetermined display height and is parallel to the road surface. That is, by raising the display unit 3 to the display height, the linear distance between the four corners of the main body of the carriage unit 2 and the positioning unit 36 of the display unit 3 becomes equal to the length of the positioning wire 24, so The tension of acts.

In addition, in the state where the display unit 3 is raised to the temporarily fixed height, the positioning wire 24 is in a loose state. Therefore, the hook 24b1 of the positioning wire 24 can be attached to the positioning unit 36 in a state where the display unit 3 is raised to the temporarily fixed height. Here, the display unit 3 that has risen to the display height is lifted upward by a runner 33 to which the tip 54a of the lifting wire 54 is connected, and a positioning unit provided at a position sandwiching the runner 33 in the width direction. At 36, the wire is pulled downward by the tension of the positioning wire 24. That is, the display unit 3 can stably maintain a parallel state with respect to the road surface by a balance between the upward stress in the center in the width direction and the downward load on both outer sides in the width direction. In addition, since a pair of support columns 52 that support the display unit 3 via the pulley 53 are provided with the pulley 53 sandwiched in the width direction, the display unit 3 can be stably supported.

As shown in FIG. 1B, since the two right positioning wires 24 are in a straight line, the right end of the display unit 3 can be stabilized in the front-rear direction. Similarly, since the two positioning wires 24 on the left side are also straight, the left side of the display unit 3 can be stabilized in the front-rear direction.

(S14) The runner 33 is fixed.
When the display unit 3 is raised to the display height, the position of the pin hole 52a above the column 52 shown in FIG. 4 and the position of the pin hole of the runner 33 coincide with each other. insert. Thereby, fixation of the display part 3 in display height can be ensured.

(S15) Information display is started.
Here, the power cable is connected to a power supply device or a commercial power supply placed on the power placement unit 23, and an operation panel (not shown) provided on the display unit 3 is operated and displayed as shown in FIG. To start. That is, reception of display data is started by the communication unit 35, and lighting control of a plurality of LEDs based on the display data is started by the display control board. Since the communication unit 35 receives the display data via the mobile phone communication network, the towable sign vehicle 1 can display the data anywhere within the communicable range of the mobile phone communication network. Further, the towable sign vehicle 1 can be remotely operated from anywhere within the communicable range of the mobile phone communication network. Further, it is possible to save the trouble of making a wired connection for receiving display data.

In the embodiment described above, since the display unit 3 is rotatably mounted on the carriage unit 2, as shown in FIGS. 1A and 2A, the display unit is rotated in a direction in which safety and running stability can be secured. Thus, the towed sign vehicle 1 can be driven. Further, the display unit 3 can be rotated as shown in FIGS. 1B and 2B, and information can be displayed on the display unit 3 as shown in FIG. That is, it is possible to achieve both visibility at the time of information display, safety during travel, and travel stability.

The width DW of the display unit 3 is shorter than the length CL of the main body part of the carriage unit 2 in the vehicle length direction and longer than the width CW of the main body part of the carriage unit 2 in the vehicle width direction. Since the width DW of the display part 3 is shorter than the length CL of the main body part of the carriage part 2 in the vehicle length direction, if the display part 3 is rotated so as to be parallel to the vehicle length direction, the vehicle length direction The display unit 3 can be mounted on the carriage unit 2 without protruding. Accordingly, the towed sign vehicle 1 can be traveled safely and stably.

On the other hand, if the display unit 3 is rotated so as to be perpendicular to the vehicle length direction, the display unit 3 can be viewed from other vehicles. Since the width of the display unit 3 is longer than the width CW of the main body unit of the carriage unit 2 in the vehicle width direction, information can be displayed by the display unit 3 in a wide range in front of another vehicle and can be easily seen from other vehicles. it can.

Further, when the display unit 3 is rotated so as to be perpendicular to the vehicle length direction, the position of one end of the display unit 3 and one end of the carriage unit 2 are on the right side in the vehicle width direction (opposite the road shoulder). The position matches. That is, on the side opposite to the road shoulder, the position of one end of the display unit 3 and the position of one end of the carriage unit 2 coincide with each other, and it is possible to prevent other vehicles traveling on the side of the traveling lane opposite to the road shoulder from being obstructed. .

In the above description, the procedures (S1) to (S15) for displaying information on the display unit 3 from the running state have been described. However, the procedure (S1) is required to run the towed beacon vehicle 1 from the displayed state. ) To (S15) may be reversed.

(3) Other embodiments:
In the above-described embodiment, the towed sign vehicle 1 includes only two wheels 21. However, the towed sign vehicle 1 may include three or more wheels. The display unit 3 may be held at an angle other than an angle perpendicular to the vehicle length direction and an angle parallel to the vehicle length direction. That is, when the road where the tow type sign vehicle 1 is parked is curved, the angle of the display unit 3 which is the front of another vehicle that runs on the road and approaches the tow type sign vehicle 1 is in the vehicle length direction. It is not limited to a vertical angle. Therefore, the angle of the display unit 3 at the time of information display may be finely adjusted according to the direction in which the road is curved. Further, during traveling, the display unit 3 may be held at an angle other than an angle parallel to the vehicle length direction. For example, the display unit 3 may be rotated in the diagonal direction of the main body of the carriage unit 2. In this case, if the width of the display unit 3 is shorter than the length of the diagonal line of the main body of the carriage unit 2, the width of the display unit 3 can be prevented from protruding from the main body of the carriage unit 2. In this case, the width of the display unit 3 can be maximized.

In the above embodiment, the display unit 3 can be moved up and down. However, the display unit 3 only needs to be rotatable, and the lifting unit 5 of the display unit 3 is omitted to make the towed sign vehicle 1 lightweight. May be used. In addition, you may operate the winch 51 of the raising / lowering part 5 with a motor.

Furthermore, a load other than the display unit 3 may be transportable on the main body of the carriage unit 2. In this case, it is desirable to provide a wall surface of a predetermined height at the edge of the main body portion of the carriage section 2 so that the load does not fall from the main body section of the carriage section 2. As described above, when the wall surface is provided, the display unit 3 can be rotated only when the lowermost part of the display unit 3 is raised to a position higher than the wall surface so that the wall surface and the display unit 3 do not interfere with each other. You may restrict. For example, a lock mechanism that releases the lock that restricts the rotation of the display unit 3 may be provided only when the display unit 3 is raised to the temporarily fixed height in (S10) of the above embodiment.

DESCRIPTION OF SYMBOLS 1 ... Tow type marker vehicle, 2 ... Carriage part, 3 ... Display part, 4 ... Rotary table, 5 ... Lifting part, 6 ... Seating plate, 21 ... Wheel, 22 ... Outrigger, 23 ... Power supply mounting part, 24 ... Wire , 25 ... traction part, 26 ... jack, 27 ... holding part, 30 ... display part, 31 ... display surface, 32 ... warning light, 33 ... runner, 34 ... leg part, 35 ... communication part, 36 ... positioning part, 41 DESCRIPTION OF SYMBOLS ... Base part, 42 ... Rotating part, 43 ... Ball bearing, 44 ... Bearing structure, 51 ... Winch, 52 ... Strut, 53 ... Pulley, 54 ... Lifting wire, 55 ... Auxiliary pulley, 55 ... Lifting wire.

Claims

A carriage section to be pulled by the vehicle;
A plate-like display unit rotatably mounted on the carriage unit;
A towable signage vehicle comprising:
When the display unit is rotated so that the display unit is parallel to the vehicle length direction of the cart unit, the width of the display unit is accommodated inside the cart unit,
When the display unit is rotated so that the display unit is perpendicular to the vehicle length direction, the width of the display unit protrudes outside the cart unit in the vehicle width direction orthogonal to the vehicle length direction. ,
The tow type sign vehicle according to claim 1.
When the display unit is rotated so that the display unit is perpendicular to the vehicle length direction, the position of one end of the display unit and the position of one end of the carriage unit match in the vehicle width direction. To
A tow type sign vehicle according to claim 1 or 2.
An elevating unit for elevating the display unit with respect to the cart unit;
The elevating unit is provided on a rotary table that rotates with respect to the carriage unit.
The tow type marker vehicle as described in any one of Claims 1-3 provided with these.
The elevating part is
A lifting wire connected to the connecting part of the display part;
A pillar on which the pulley on which the lifting wire is hung is attached above the lifting range of the connecting portion;
A winch that is provided below the pulley and moves the display unit up and down with respect to the carriage unit by changing the winding amount of the lifting wire;
Comprising
The tow type sign vehicle according to claim 4.
Each of the two positioning parts sandwiching the connecting part from the outside in the width direction in the display part, and at least two positioning wires for connecting the carriage part;
Each of the positioning wires enters a tension state when the display unit is parallel to the carriage unit and rises to a predetermined display height.
The tow type sign vehicle according to claim 5.