JPH0762326B2 - Road sign installation and collection device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for installing and recovering a hollow road sign installed at a boundary between a road construction site and a roadway.

[0002]

2. Description of the Related Art A device for automatically installing the above-mentioned road signs on the road surface for the purpose of improving safety, saving labor, and improving work efficiency (for example, JP-A-63-241).
No. 208) is proposed.

This sign placement device is provided on the side of the traveling vehicle body.
A conveyor for transporting road signs is installed diagonally up and down,
At the free end of the conveyor frame, wheels that are driven to rotate in conjunction with the traveling of the traveling vehicle body are provided, and the rotational force of the wheels is transmitted to the drive shaft of the conveyor through a speed reducer to drive the vehicle speed of the traveling vehicle body. It is configured to be driven at a speed proportional to, and the road signs placed on the conveyor are dropped one by one on the road surface at a required interval as the traveling vehicle travels.

[0004]

However, since the road sign conveyed by the conveyor is subjected to a tilting descent inertial force, when one side end of the sign bottom comes into contact with the road surface, the road sign is squeezed. However, there is a drawback in that the road sign tends to fall irregularly in a standing posture when it plunges into the road surface from the corner of the sign bottom.

In addition, when changing the installation position of the sign to the left and right of the traveling vehicle body, it is necessary to change the installation position of the sign installation device with respect to the brackets on both sides of the cargo bed.
It had the drawback of being hard-working, dangerous and winning, and time-consuming. Furthermore, the above-mentioned device is only for the installation of signs, and the collection of road signs still depends on manpower, so safety improvement and labor saving are not sufficient, and work efficiency is also expected to be sufficiently improved. It wasn't possible. It is an object of the present invention to provide a road sign installation / collection device that achieves automatic installation and automatic collection of road signs that eliminate the above disadvantages.

[0006]

SUMMARY OF THE INVENTION A road sign installation and recovery apparatus according to the present invention, which has achieved the above object, comprises a road sign group conveying means in which a plurality of hollow road signs are overlapped with each other, and a road sign group. A pair of marker group carriers for supporting and transporting both sides of the bottom of the marker group, a state switching means for moving the pair of marker group carriers closer to and away from each other to switch between a marker supporting state and a support release state, and the marker group A pair of sign receiving means arranged at the sign separating position at the carrying end of the carrying body, a moving means for moving the pair of sign receiving means toward and away from each other in the same direction as the moving direction of the sign group carrying body, A sign elevating means located inside the hollow for supporting and elevating the road sign, a posture correcting means for correcting the posture of the road sign supported by the sign elevating means, and the road sign releasably sandwiched. A sign holding means for holding, a position changing means for changing the position of the sign holding means between a sign separating position and a sign installation and collection position on one side of the vehicle body, and a holding means for moving the sign holding means up and down at the sign installation and collection position. The elevating mechanism and the installation / recovery position changing mechanism for changing the installation / recovery position of the sign to the other side of the vehicle body by the sign holding means are mounted on the traveling vehicle body.

[0007]

The installation of the road sign by the above device is performed as follows by the forward traveling of the traveling vehicle body. That is, a road sign group in which a plurality of road signs are superposed on each other is sequentially conveyed to a sign separating position, and the sign group conveying body and the sign receiving means move close to each other at the sign separating position, thereby The lowest road sign is separated and the road sign is taken out by the sign lifting means. The road sign taken out by the sign elevating means is sandwiched and held by the sign holding means and conveyed to the installation / collection position of the sign, where the sign holding means is lowered and the road sign by the sign holding means. The pinching and holding of the road sign is released, whereby the road sign is installed on the road surface.

The collection of road signs is performed as follows by the backward traveling of the traveling vehicle body. That is, the sign holding means holds and holds the road sign installed on the road surface,
The sign holding means is lifted and conveyed to the sign separating position, where the sandwiching and holding of the road sign by the sign holding means is released, and the road sign is deposited in the sign lifting means. Here, the direction of the road sign is corrected by the posture correcting means, the sign elevating means is subsequently raised, and the sign receiving means is located on the bottom side of the road sign, whereby one road sign is collected. When a predetermined number of road signs are collected by repeating the above-mentioned sign collection, the road sign group is carried to the carrying means.

Then, by changing the installation / recovery position of the road sign by the sign holding means to one side or the other side of the vehicle body, the road sign can be installed in any direction to the left or right of the traveling vehicle body. It can be collected.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a road sign installation and collection device,
In these drawings, reference numeral 1 in the drawings denotes a base mounted on a loading platform 2a of the traveling vehicle body 2. A pair of left and right vertical frames 3 are continuously provided in a state of projecting to the rear of the loading platform 2a. It is pivotally attached to the column 4 via a horizontal axis. Reference numeral 5 is a jack for lifting the rear side of the base 1, and 6 is a receiving means for supporting the base 1 lifted by the jack 5 during traveling. The base receiving tool 7 is switchably provided between a receiving state and a receiving release state. .

Reference numeral 8 is a conveying means for a road sign group A in which a plurality of road signs a are superposed. As shown in FIG. 4, three conveying means are provided to support the road sign group A on both sides and in the center. The transport chain 8a of FIG. 1 is provided, and the fall prevention members 9 of the marker group A are arranged on both sides of the transport means 8. The road sign a is composed of a hollow cone portion with a widened skirt and a flange-shaped quadrangular base projecting to the outside of the skirt of the cone portion, and is made of a synthetic resin material.

Reference numeral 10 denotes a pair of marker group carriers for supporting and transporting both bottom portions of the marker group A. As shown in FIGS. 4 to 6, a pair of brackets 11 are provided on a horizontal frame 31 extending over the pair of vertical frames 3. Standing up, this pair of brackets 11
Drive shaft 12 having a ball spline groove b formed thereover
, And two female spline members 14 each having a drive side sprocket 13 connected to the outer side thereof are fitted in the ball spline groove b. On the other hand, the horizontal frame 31 is provided with a drive means 15 represented by a hydraulic motor, for example, and a chain type transmission mechanism 16 is provided between the drive means 15 and the drive shaft 12.

A frame mounting member 18 is fitted and held on each of the female spline members 14 via ball bearings 17, and a free end side of the frame mounting member 18 is projected to the rear of the carrier 3. In this state, the three frames 19 are arranged in a row, and the three driven shafts are respectively provided on the free end side and the base side of the frame 19 so as to project inward.
20 is installed, and a driven side sprocket 21 is provided on the protruding end of each driven shaft 20.

Further, an endless chain 22 for conveying the road sign group A is wound around the drive side and driven side sprockets 13 and 21, and a guide member 23 for supporting a linear path portion of the chain 22 is provided. The sign group carrier 10 which is attached to the inner surface of the frame 19 and supports and conveys both sides of the bottom of the road sign group A is individually movable in the axial direction of the drive shaft 13.

Reference numeral 24 is a state switching means for moving the pair of marker group carriers 10 close to and away from each other to switch between a marker supporting state and a support release state. It comprises a drive mechanism 26 for moving the marker group carrier 10 in the axial direction of the drive shaft 13. The interlocking mechanism
25 is a support shaft between the brackets 11 and 11 of the horizontal frame 31.
A link 28 is rotatably provided on the upper end of the support shaft 27 while the 27 is erected, and a turnbuckle 29 is pivotally attached to the end portion of the link 28 and the bottom plate of each frame 19 to form the pair of markers. It is configured to move the group carrier 10 in an antithetical manner. On the other hand, the drive mechanism 26 is composed of, for example, a hydraulic cylinder, and the cylinder rod 26a is connected to one frame.
Connected to 19.

Returning to FIGS. 2 and 4, reference numeral 30 in the drawing is the carrier.
A pair of sign receiving means arranged at the sign separating position B at the conveying end of 10 and the lower two ranks of the road sign group A when the signs are installed.
It rushes between the bottoms of the individual signs to support the road sign a on the upper side, and supports the road signs a that are sequentially collected during the sign collection.

Specifically, as shown in FIGS. 7 to 9, a pair of brackets 33 in which horizontal guide tubes 35 are continuously provided are erected on the horizontal brackets 32 on both sides of the marker separating position B, and A support member 37 is attached over the tip of the guide rod 34 held by the guide tube 35, and the support member 37 is attached.
A plate-shaped mark receiving member 36 is pivotally mounted on the plate so as to be able to swing up and down, and a biasing means (for example, a coil spring) 38 for swinging and biasing the sign receiving member 36 downward, and a biasing means 38. The support member 37 is provided with a stopper 39 for holding the sign receiving member 36 in a horizontal posture against the force. In addition, the pivotal position of the marker receiving member 36 is biased slightly upward with respect to the axis of the guide rod 34.
The sign receiving member 36 is swung upward when a load is applied to the tip of the sign 36.

Further, a moving means 40 represented by, for example, a two-stage telescopic type hydraulic cylinder is connected to the support member 37, and the marker receiving member 36 in the horizontal posture is conveyed to the marker separating position B. The state in which the lower two road signs a of the road sign group A are thrust between the bottoms (see FIG. 7) and the tip of the sign receiving member 36 is abutted by further extension and the sign receiving member 36 is moved upward. By swinging, the upper and lower road signs a are separated, and the lower road sign a can be dropped (see FIG. 8). In FIGS. 7 and 9, reference numeral 41 in the drawings is a fall prevention member for the road sign group A, and the horizontal frame 31 is provided via a bracket 42.
The corresponding plate portion 43 attached thereto has an opening / exit opening 44 for the marker receiving member 36.

Returning to FIGS. 1, 2 and 4, reference numeral 46 in the drawings is a sign raising / lowering means for moving the road sign a at the sign separating position B, and as shown in FIGS. 10 to 12, a shaft 48 having a sprocket 49 is provided. Is installed above and below the vertically long bracket 47,
An endless chain 50 is wound around the upper and lower sprockets 49, and driving rotation means (for example, a hydraulic motor) 53 is interlockingly connected to an upper shaft 48.

A support member 51 for the road sign a is connected to an arm 52 that can move up and down along a vertical guide rail 45, and further a horizontal slide member 54 is held on the arm 52, and the endless body is used. A pin i connected to the chain 50 is connected to the horizontal slide member 54. That is, in the winding portion of the chain 50 with respect to the sprocket 49, while the horizontal slide member 54 moves in the horizontal direction, the horizontal slide member 54 moves integrally with the chain 50,
Thus, the sign support member 51 is configured to move up and down.

1 to 4, reference numeral 56 in the drawings is a posture correcting means for correcting the posture around the vertical axis of the road sign a supported by the sign support member 51. Reference numeral 57 is an installation and collection means for the road sign a, which includes a sign holding means 58 for releasably sandwiching and holding the road sign a, a sign separation position B and a sign installation and collection position S on one side of the vehicle body. A position changing means 59 for changing the position and a holding means elevating mechanism 6 for elevating and lowering the sign holding means 58 at the installation / recovery position S of the sign a.
0 and the installation / recovery position changing mechanism 61 of the sign a for changing the installation / recovery position S of the sign a to the other side of the traveling vehicle 2 by the sign holding means 58.

As shown in FIG. 3, a pair of upper and lower cylindrical frames 62 to 65 are provided on the upper and lower sides of the left and right vertical frames 3, respectively, and as shown in FIGS. The posture correction means 56 is provided on the lower frame 65 of the.

That is, a horizontal base 66 is attached to the lower frame 65.
And a guide rail 67 are continuously provided, a rack 69 driven by a cylinder 68 and a pinion 70 meshing with the rack 69 are provided on the horizontal base 66, and an arm 71 is continuously provided to the pinion 70 while the rail 67 is provided. A slide member 72 is attached so as to be movable along, and the slide member 72 and the tip of the arm 71 are connected by a turnbuckle 73. Then, a posture correcting member 74 that abuts the bottom side edge of the collected road sign a and corrects the posture is pivotally attached to the slide member 72 so as to be rotatable around the horizontal axis, and the posture correcting member 74 is located. A spring 75 and a stopper 76 are provided to keep the posture corrected during the period.

A second stopper 77 with which the posture correcting member 74 abuts when the posture correcting member 74 is switched to the standby position (the position of the posture correcting member 74 is shown by a solid line in FIG. 11).
Is provided on the lower upper frame 64, and the free end side of the posture correcting member 74 is swung downward at the standby position. This is because when the position changing means 59 rotates the sign holding means 58, when the lower side of the road sign a held by the sign holding means 58 is swayed by centrifugal force, the lower side of the road sign a is in a posture. This is in consideration of avoiding a situation where the correction member 74 comes into contact with the correction member 74.

The installation / recovery position changing mechanism 61 for the road sign a is constructed as follows. That is, FIGS. 3, 4 and 1
As shown in FIGS. 3 and 14, the vertical shafts 78 and 79 are rotatably pivoted at the width center position of the traveling vehicle body 2 across the pair of upper and lower frames 62, 63, 64, and 65, respectively. Cylindrical arms 81 and 82, on which columns 80 of a holding means elevating mechanism 60, which will be described later, are rotatably mounted, are attached to the upper and lower vertical axes 78 and 79. Then, the pinion 83 is fixed to the upper vertical axis 78, a rack 84 that meshes with the pinion 83 is provided in the upper frame 62 on the upper side, and a cylinder is attached to the rack 84.
85 is connected, and further two sets of stopper means 86 which can be selectively engaged with the stopper recess j of the upper arm 81 are provided.

The holding means elevating mechanism 60 has a parallel four-link structure, and as shown in FIGS. 3, 4 and 15, a pair of upper and lower links 87 are pivotally attached to the column 80 so as to be vertically swingable. At the same time, a vertical link 88 is pivotally connected to the upper and lower links 87, and a cylinder 89 is connected to the vertical link 88 and the support column 80. Reference numeral 90 in the figure is a stopper for defining the position for receiving the triangular concave portion m formed in the lower side link 87, which defines the lowered position of the marker holding means 58 and prevents the shake.

The marker holding means 58 is attached over the free end sides of the upper and lower links 87 in the holding means lifting mechanism 60, and more specifically, FIGS.
As shown in FIG. 6, a frame member 91 is suspended from the free end side of the upper link 87 so as to be rotatable around the vertical axis, and
A support shaft 92 is provided so as to extend downward from the lower side of the frame member 91, a bearing 93 is attached to the support shaft 92, and a free end side of a lower link 87 is connected to the bearing 93.

Further, the upper member 94 of the bearing 93 is provided with a 180 ° phase to form a locking hole n, and the locking hole n is also formed.
The stopper member 95 that can be selectively engaged and disengaged with the frame member 91
The frame member 91 including the support shaft 92 can be rotated 180 degrees. Then, as also shown in FIG. 17, two mark holding claws 97 provided with elastic members 100 are pivotally mounted on the upper side of the frame member 91 so as to be rotatable around a vertical axis 96, and the mark holding Cylinder on the base side of pawl 97
Linking the links 99 in which 98 are arranged in series, the mark holding claw 97
Is switchable between the marker pinching state and the pinch releasing state.

On the other hand, as shown in FIG. 18, the frame member
A holding member 102 for holding the trunk holding body 101 of the road sign a movably in the front-rear direction is attached to the lower side of 91, a slide member 103 is provided on the holding member 102, and movement of the slide member 103 is performed. Road sign a based on
A sensor 104 for detecting the presence of Incidentally, FIG.
As shown in FIG. 6, on the lower side of the holding member 102, a support member 105 that supports one side of the bottom portion of the road sign a only when the road sign a is installed is provided so as to be positionally changeable in the front-rear direction. is there.

The position changing means 59 for changing the position of the marker holding means 58 between the marker separating position B and the marker installing / recovering position S on the one lateral side of the vehicle body is constructed as follows. That is, as shown in FIGS.
Secure the pinion 106 to the upper end of the
A rack 107 that meshes with the 106 is movably provided along the guide rail 108, and the cylinder 107 is attached to the rack 107.
9 are connected.

The guide rail 108 and the cylinder
109 is provided on a unit base 111 that can swing around an axis 110 near the vertical axis 78, and
A cylinder 112 is connected to the free end side of 111 so that the engagement of the rack 107 with the pinion 106 can be released. Incidentally, in FIGS.
3 is a stopper means, which is a member 114 connected to the upper arm 81.
By engaging the concave portion r formed with a phase of 180 degrees, the rotation of the holding means elevating mechanism 60 with respect to the upper arm 81 around the column 80 is disabled.

Next, an installation mode of the road sign a when the road sign a is installed on the left side of the traveling vehicle body 2 will be described.
As shown in FIG. 20, the installation of the road sign a is carried out by the forward traveling of the traveling vehicle body 2. First, the conveying means 8 and the sign group conveying body 10 are driven to rotate in the forward direction so that the conveying means 8 is placed on the conveying means 8. The leading road sign group A is transferred to the pair of sign group carriers 10 side, the driving of the conveying means 8 is stopped at this time, and the road sign group A transferred to the sign group carrier 10 is separated from the signs. When the position B is reached, the driving of the marker group carrier 10 is stopped.

Here, as shown in FIG. 8, the sign receiving means
The sign receiving member 36 of 30 is thrust between the lower two sign bottoms of the road sign group A to separate the upper and lower two road signs a, and the lower road sign a is dropped. This fallen road sign a
As shown in FIG. 10, is received by the marker support member 51 of the marker elevating means 46 waiting at the upper position C, and
The supporting member 51 is driven downward and stopped at the middle position D. Next, as shown in FIGS. 4 and 13, the column 80 is driven to rotate in the normal direction to switch the marker holding means 58 at the marker installation / recovery position S to the marker separating position B, and the marker holding claw 97 of the marker holding means 58. The road sign a is sandwiched and held by. Then, the sign raising / lowering means 46 is driven to descend so that the sign support member 51 is pulled out from the hollow inside of the road sign a, and the sign support member 51 is stopped at the lower position E.

Next, the column 80 is rotated in the opposite direction to switch the marker holding means 58 to the marker installation / recovery position S, and the holding means elevating mechanism 60 is driven to descend during the rotation, and a predetermined amount is set. The sign holding claw 97 at the timing
The holding means elevating mechanism 60 is moved upward to prepare for the next sign installation, and the installation operation of one road sign a is completed.

As shown in FIG. 20, the road sign a is first supported by the sign bottom support member 105 on one side, and the rear side of the traveling vehicle body 2 in the traveling direction is grounded, and at the same time, the support member is supported. The 105 is pulled out from the bottom of the sign and installed on the road surface. At this time, since the road sign a has an inertial force in the traveling direction, even if the rear side in the traveling direction of the traveling vehicle body 2 comes in contact with one side in a supported state, the road sign a does not fall down, and the inertial force is not applied to the road sign. a bottom support member for a
By acting in the pulling direction of 105, the road sign a
Will be installed in place without falling.

During the above-mentioned sign setting operation, the pair of sign group carriers 10 are moved closer to each other and switched to the sign receiving posture, and the sign receiving member 36 of the sign receiving means 30 is once retracted from the sign bottom. Then, the marker is immediately switched to the rush state, and further, the marker elevating means 46 is driven to move upward, and the marker supporting member is driven.
51 is switched to the upper position C. After that, the above operation is repeated, and the transportation means 8 and the marker group carrier 10 are driven during the installation of the final road sign a of the road sign group A to move the next road sign group A to the sign separation position. Since it is carried to B, the road sign a can be automatically installed safely and efficiently by repeating this operation.

Next, the collection of the road sign a will be described. The collection of the road sign a is performed as follows by the backward traveling of the traveling vehicle body 2 as shown in FIG.
First, the column 80 is reversely driven to switch the marker holding means 58 located at the marker separating position B to the marker setting / recovering position S.
When the slide member 103 comes into contact with the road sign a on the road surface and the sensor 104 operates, the sign holding claw 97 of the sign holding means 58 is switched to the sandwiching state, and the road sign a is sandwiched and held.

Next, the holding means elevating mechanism 60 is driven upward, and the support 80 is driven in the forward direction to switch the marker holding means 58 to the marker separating position B, and the marker supporting member of the marker lifting means 46. 51 is lifted from the lower position E to the middle collecting position D, and the marker holding means 58 is also provided.
The sign holding claw 97 is switched to the pinch release state, and the collected road sign a is held by the sign support member 51.
Here, the posture correcting means 56 is driven forward to correct the posture disorder of the road sign a, and the sign elevating means 46 is moved.
The sign receiving member 36 of FIG. 7 is raised to the upper collecting position (position above the conveying action surface of the sign group conveying body 10) H, and as shown in FIG. The position a is passed and the posture correcting means 56 is returned to the original standby position.

After passing through the above-mentioned sign, the sign support member 51 of the sign elevating means 46 is moved to the lower position E at a predetermined timing.
Further, in this state, since the sign receiving member 36 of the sign receiving means 30 is switched to the horizontal posture, the road sign a is supported by the sign receiving member 36. On the other hand, simultaneously with the return of the posture correcting means 56, the support 80 is driven in the reverse direction so that the marker holding means
58 is switched to the marker installation / recovery position S, and the holding means elevating mechanism 60 is lowered to move the marker holding means 58.
To prepare for the next collection of the road sign a.

After that, by repeating the above operation,
At the time when the final road sign a for which one set is to be collected is collected, the pair of sign group carriers 10 are moved closer to the sign receiving posture, and the sign receiving member 36 of the sign receiving means 30.
Is switched to a state in which the sign support is released, the road sign group A of the plurality of collected road signs a is supported by the sign group carrier 10, and the sign group carrier 10 and the carrier means 8 are rotated in reverse. The road sign group A that has been driven and collected is taken out to the conveying means 8. By repeating this operation, the road sign a can be automatically collected safely and efficiently.

Next, a procedure for changing the installation / recovery position S of the road sign a to the right side of the traveling vehicle body 2 by the installation / recovery device will be described. First, the stopper means shown in FIG.
The recess r formed by the member 114 connected to the upper arm 81
The holding means elevating mechanism 60 is prevented from rotating with respect to the upper arm 81.

Next, as shown in FIG.
To disengage the rack 107 from the pinion 106, and, although not shown, the cylinder 109 of the position changing means 59 is expanded and then the cylinder 112 is contracted to engage the rack 107 with the pinion 106. Let them do it. As a result, the rotation phase of the holding means elevating mechanism 60 by the position changing means 59 is changed by 180 degrees. Here, the holding means elevating mechanism 60 by the stopper means 113
Fixing and upper arm 81 to upper frame 62
The fixation by the stopper means 86 is released, and the cylinder 85 is extended so that the holding means elevating mechanism 60 including the marker holding means 58 as shown in FIGS.
The phase of the whole is changed by 180 degrees around the vertical axes 78 and 79.

In this state, as shown by a phantom line in FIG. 13, the sign holding claw 97 of the sign holding means 58 faces forward in the running direction of the running vehicle body 2. Therefore, in FIG.
The fixing of the sign holding means 58 to the holding means lifting mechanism 60 by the stopper member 95 shown in FIG. 16 is released, and the phase of the sign holding means 58 is artificially changed by 180 degrees, whereby the right side of the traveling vehicle body 2 is changed. Road sign for
Installation recovery of is achieved.

When installing the road sign a, the road sign a is supported by the sign bottom support member 105, but the sign bottom support member 105 is omitted and the road sign a is placed in an upright posture. It can be carried out in a state in which it is dropped onto the road surface. Further, the road sign a can have various shapes, and an example thereof is shown in FIG.

[0045]

As described above, according to the present invention, it is possible to install a road sign neatly at a predetermined position without causing the road sign to collapse, and to automatically collect the automatically installed road sign. As a result, safety, labor saving, and work efficiency can be significantly improved as compared with the conventional one. Moreover, by changing the installation / recovery position of the road sign by the sign holding means to one side or the other side of the vehicle body, the road sign can be installed or collected in any direction on the left or right of the traveling vehicle body. can do.

[Brief description of drawings]

FIG. 1 is a side view showing a device for installing and collecting road signs.

FIG. 2 is a plan view showing a road sign installation and collection device.

FIG. 3 is a rear view showing a road sign installation and collection device.

FIG. 4 is an operation explanatory view showing a road sign installation and collection device.

FIG. 5 is a configuration diagram showing a drive system of a marker group carrier.

FIG. 6 is a plan view of a marker group carrier.

FIG. 7 is a detailed view of a sign receiving means.

FIG. 8 is an explanatory diagram of separation of a mark by a mark receiving means.

FIG. 9 is a plan view of the mark receiving means.

FIG. 10 is a side view of the marker elevating means.

FIG. 11 is a detailed view of posture correction means.

FIG. 12 is a plan view of a sign lifting unit and a posture correcting unit.

FIG. 13 is a schematic plan view of the rear side of the road sign installation and collection device.

FIG. 14 is a schematic rear view of the installation and collection device for road signs.

FIG. 15 is a detailed view of a holding means elevating mechanism.

FIG. 16 is a detailed view of the marker holding means.

FIG. 17 is a plan view of a marker holding claw.

FIG. 18 is a plan view of a body holder for a road sign.

FIG. 19 is a detailed view of a position changing unit.

FIG. 20 is an operation explanatory diagram of road sign installation.

FIG. 21 is a diagram for explaining the operation of road sign collection.

FIG. 22 shows another embodiment of the road sign, FIG. 22 (A) is a front view, and FIG. 22 (B) is a sectional view.

[Explanation of symbols]

2 ... traveling car body, 8 ... transport means, 10 ... sign group transport body, 24 ...
State switching means, 30 ... Mark receiving means, 40 ... Moving means, 46 ...
Sign lifting means, 56 ... posture correcting means, 58 ... sign holding means,
59 ... Position changing means, 60 ... Holding means lifting mechanism, 61 ... Installation / recovery position changing mechanism, a ... Road signs, A ... Road sign group, B ...
Mark separation position, S ... Installation collection position.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Akita 3-20, Igahara, Toyota-shi, Aichi Shinmei Industrial Co., Ltd. (72) Inventor Toshiya Yonemori 3-20, Igahara, Toyota-shi, Aichi Shinmei Kogyo Co., Ltd. (72) Inventor Kazuo Koiso 204, Takenomiya, Kyuichi Market, Danyo Town, Ichinomiya City, Aichi Prefecture

Claims (1)

[Claims] 1. A conveying means for a road sign group in which a plurality of hollow road signs are overlapped with each other, a pair of sign group carriers for supporting and carrying both sides of the bottom of the road sign group, and the pair of sign groups. State switching means for moving the carriers close to and away from each other to switch between a marker support state and a support release state, a pair of marker receiving means arranged at a marker separating position at the carrier end of the marker group carrier, and a pair of markers. Moving means for moving the receiving means toward and away from each other in the same direction as the moving direction of the sign group carrier, sign raising and lowering means for supporting and raising and lowering the road sign located inside the hollow of the road sign, and the sign raising and lowering means. Posture correcting means for correcting the posture of the road sign supported by the road sign, sign holding means for releasably sandwiching and holding the road sign, and sign collecting position of the sign holding means and one side of the vehicle body Position changing means for changing the position across the position, a holding means elevating mechanism for raising and lowering the sign holding means at the sign installation and collection position, and a sign installation and collection position for changing the sign installation and collection position to the other side of the vehicle body. An installation and collection device for road signs, characterized in that the installation and collection position changing mechanism is mounted on a traveling vehicle body.