JP3363403B2 - Road sign rack - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road marking rack.

[0002]

2. Description of the Related Art When a lane is regulated for construction on a highway, road signs are installed to inform general traffic vehicles that construction is underway. In addition to the road signs that notify the construction work, a large amount of safety cones (conical road signs) for controlling the lanes must be loaded on the sign-installed vehicles for transporting such road signs.

[0003]

However, conventionally, since the road signs are flatly stacked on the loading platform, the space occupied by the road signs becomes large and the space for loading the safety cone and the like is limited. Was occurring. Further, if the way of loading the road signs is messy, it may take a long time to find the target road sign when the necessary road sign is taken out of the loading platform, or the target road sign is at the bottom. There was a problem that it took a lot of effort. Further, during the transportation of the road sign, there is a risk that the road sign may be damaged due to collision with other road signs or the floor due to vibration or the like applied to the transportation vehicle.

The present invention has been made in view of the above matters, and an object thereof is to make it possible to secure a large loading space for a safety cone or the like by occupying a small space on the bed of a vehicle carrying a road sign. In addition, by keeping the display part of each road sign easy to see, you can easily find the target sign.
It is an object of the present invention to provide a road sign rack that can prevent damage to road signs during transportation and can load and unload road signs by one person.

[0005]

In order to achieve the above-mentioned object, a road sign rack of the present invention comprises a flat display section,
It is possible to hold the display portion on the front surface and also to hold a road sign consisting of a pipe-shaped main shaft portion provided with a locking metal fitting at a position at a certain distance from the upper end, and to fix the upper end of the main shaft portion. Upper holding portions for holding the first rotating portion arranged in a line at equal intervals, and a central holding portion for holding the intermediate portion of the main shaft portion and locking the locking metal fitting in a row and the like. The second rotating portion provided at intervals and the first and second rotating portions are interlocked with each other, and in a single operation,
The motor includes a motor that rotates a predetermined pitch, and a pedestal portion that supports the first and second rotating portions (claim 1).

Further, the front surfaces of the two rotating portions may be formed into an inclined surface which is located rearward as it goes upward (claim 2), and further, the locking is secured to the central holding portion. The road sign body may be held non-rotatable by locking the metal fitting (claim 3).

Further, in order to prevent the locking metal fittings locked to the central holding portion from falling off from the central holding portion, the second rotating portion may be provided with a retaining plate (claim). Item 4).

With the above structure, a large space for loading a safety cone or the like can be secured by reducing the space occupied on the bed of the vehicle carrying the road signs, and the display of each road sign can be easily seen. To provide a road sign rack that can easily find a target sign by holding it, can prevent damage of the road sign during transportation, and can load and unload the road sign by one person. Is possible.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS. 1 to 7, a road sign rack D fixed to the floor of a bed N of a vehicle for carrying and installing road signs R, safety cones S, and the like.
Is for holding a road sign R including a display unit 1 and a pipe-shaped main shaft 2 that holds the display unit 1 on the front surface. The road sign R has an upper end of the main shaft portion 2,
The metal fittings 3 attached to the respective upper ends of the road signs R at fixed distances are held by the holding members 4 of the road sign rack D, which will be described later, so that the main shaft portion 2 becomes substantially horizontal. Will be retained. Since the road sign rack D has 16 stages of the pair of holding members 4, it is possible to hold 16 road signs R. The number of holding members 4 and the number of road signs R that can be held are 16 steps and 16 steps.
It is not limited to books.

The display portion 1 of each road sign R is connected by a plurality of fixing means 5, 5 so that the rear surface thereof faces the front surface of the main shaft portion 2.

The locking metal fitting 3 is provided with a holding portion 6 provided along the outer periphery of the main shaft portion 2, a fastening means 7 provided at one end of the holding portion 6 for fastening the holding portion 6, and From the rotation preventing means 8 provided at the other end of the holding portion 6 and for preventing the main shaft portion 2 held by the holding portion 6 from rotating relative to the central holding portion 20 described later. Composed.

The holding portion 6 is provided with a substantially circular holding body 6a having a notched portion at both ends in a plan view, and is connected to one of the notched portions in a V shape in a plan view. The main body 6a includes an opening portion 6b projecting to the outside and a closing portion 6c which is U-shaped in a plan view and is connected to the other of the cutout portions and projects to the outside of the holding portion body 6. In addition, the closing portion 6c includes projecting members 9 and 10, one end of which is connected to the cutout portion of the holding portion body 6a.
Each of the projecting members 9 and 10 is composed of a connecting member 11 which is continuously provided at the other end.

The tightening means 7 comprises a bolt 12 and a nut 13. The bolt 12 has a head portion 1
2a and a screw portion 12b, and this screw portion 12b
Penetrates from one side of the opening portion 6c to the other side. Then, the nut 13 is screwed onto the threaded portion 12b penetrating the opening 6c from the end of the threaded portion 12b, and the nut 13 is tightened, whereby the opening 6
c will be urged in the closing direction.

The rotation preventing means 8 is composed of a bolt 14, a nut 15 and a tubular collar portion 16. The bolt 14 is connected to the head portion 14a and the lower surface of the head portion 14a, and the screw portion 1 having a smaller diameter than the head portion 14a.
4b, and the threaded portion 14b penetrates from the inside to the outside of the connecting member 11. And
The collar portion 1 is attached to the screw portion 14b that penetrates the connecting member 11.
The rotation preventing means 8 is attached to the closed portion 6c by screwing the nut 15 through 6. In addition, 8'is a washer.

Next, the locking metal fitting 3 having the above structure is
A method of attaching each road sign R to the main shaft portion 2 will be described. First, the tightening means 7 is previously removed from the holding portion 6, and the rotation preventing means 8 is attached to the holding portion 6. The locking metal fitting 3 in this state has the holding portion 6
Has an appropriate elasticity, the opening is enlarged by pulling the opening portion 6b to both sides, and the holding portion main body 6a is pushed from the side of the main shaft portion 2 at an appropriate position.
It can be fitted so as to sandwich the side surface of the. After this fitting, the tightening means 7 is attached to the opening portion 6b, and the nut 13 is tightened so as to close the opening portion 6b. With this tightening, the holding portion main body 6a is strongly contacted with the main shaft portion 2. Energized. By this urging, the locking metal fitting 3 is strongly fixed to the main shaft portion 2, and the locking metal fitting 3 is displaced relative to the main shaft portion 2 in the axial direction of the main shaft portion 2 or relatively rotated. There is nothing to do.

The road sign rack D is movable 1
The holding members 4, 4, ... In six stages, the first rotating portion 17 and the second rotating portion 27, and the pair of left and right brackets B fixed to the first rotating portion 17 and the second rotating portion 27, B and rotating part 1
It is composed of a pedestal portion 18 for supporting the members 7 and 27.

The holding member 4 holds an upper end holding portion 19 for holding the upper end of the main shaft portion 2, an intermediate portion of the main shaft portion 2, and an engaging metal fitting 3 attached to the main shaft portion 2. It is composed of a central holding portion 20 for stopping.

The upper end holding portion 19 is composed of a protruding portion 21 inserted inside the upper end of the main shaft portion 2, and a bracket portion 22 for fixing the protruding portion 21 and having an L-shaped plan view.
The protrusion 21 is a substantially cylindrical or columnar member, and the outer surface of the tip portion has a tapered surface T that becomes thinner toward the tip side.
Are formed. The outer diameter of the protrusion 21 is formed to be substantially the same as the inner diameter of the main shaft portion 2 of the road sign R. Then, the protrusion portion 21 is attached to the bracket portion 22.
The rear end is fixed.

The central holding portion 20 is a bifurcated main shaft engaging portion 24 for holding an intermediate portion of the main shaft portion 2 of the road sign R, and is connected to the main shaft engaging portion 24 so as to be continuous with the main engaging portion 24. And a metal fitting locking portion 26 having a bifurcated shape for locking the collar portion 16 of the rotation preventing means 8 of the fastener 3.
A contact portion S for contacting a limit switch LS described later is provided.

In order to attach the road sign R to the holding member 4 having the above structure, the upper end of the main shaft portion 2 is inserted into the protrusion 21 of the upper end holding portion 19, and
It suffices to move the collar portion 16 of the locking metal fitting 3 attached to the road sign R so as to be hooked on the metal fitting locking portion 26 of the central holding portion 20. By moving in this manner, the intermediate portion of the main shaft portion 2 is locked by the main shaft locking portion 24. At this time, the protrusion 21 has a tapered surface T.
Is formed, and the spindle locking portion 24 and the metal fitting locking portion 26 are formed.
Since it is formed in a bifurcated shape that spreads toward the tip side,
Since each structure serves as a guide, the road sign R can be easily attached to the holding member 4.

The first rotating portion 17 has a first supporting frame 17 '.
And a chain portion 28. The first support frame 17 '
Is a hollow prism, and sprockets 17a and 17b are provided near the upper and lower ends, respectively. In addition, the guide portion 23 is provided on the front surface and the rear surface of the first support frame 17 '.
Is provided, and the chain portion 28, which is a rotating body, is guided by the guide portion 23.
It is stretched over a and 17b. Furthermore, the first support frame 17 '
.. are connected to the chain portion 28, and the upper end holding portions 19, 19 ... Are provided in a row in 16 steps at equal intervals.

The second rotating portion 27 has a second supporting frame 27 '.
And a chain portion 30. The second support frame 27 '
Is a hollow prismatic shape, and sprockets 27a and 27b are provided near the upper and lower ends, respectively. Further, the guide portion 29 is provided on the front surface and the rear surface of the second support frame 27 '.
Is provided, and the chain portion 30 which is a rotating body is guided by the guide portion 29 so that the sprocket 27
It is stretched over a and 27b. Furthermore, the second support frame 27 '
.. are connected to the chain portion 30, and the central holding portions 20, 20 ... Are provided in a row and in 16 stages at equal intervals. Further, the number and spacing of the upper end holding portions 19, 19 ... Are the same as the number and spacing of the central holding portions 20, 20, ..., and each upper end holding portion 19 has the same height as each central holding portion 20. Is provided.
Further, LS is a limit switch, and the second support frame 27 '
One is provided in the upper part and two are provided in the lower part (see FIG. 7).

Reference numeral 31 is a retaining plate provided from the upper end on the front surface side of the second support frame 27 'to a proper position below (details will be described later). The retaining plate 31 is provided so as to cover the locking metal fitting 3 that is locked to the metal fitting locking portion 26.
By being sandwiched by 6 and the retaining plate 31, it is prevented from falling off from the metal fitting locking portion 26.

Reference numeral 32 is a shaft body having both ends fixed to the upper portions of the first support frame 17 'and the second support frame 27', respectively, and rotatably supports the sprockets 17a, 27a. Further, 33 is the sprocket 17b at both ends,
27b is a shaft provided and is supported by the bracket B in a state of being rotatable about the axis. Then, this rotation is performed integrally with the sprockets 17b and 27b.

Reference numeral 34 denotes a motor, which is the second rotating portion 2
It is attached to the bracket B on the 7 side. The motor 34 includes the shaft 33 and the sprocket 17b,
It is for rotating 27b. The rotation of the sprockets 17b and 27b is transmitted to the chain portions 28 and 30 and the sprockets 17a and 27a. That is, the chain portion 2 is adjusted by adjusting the rotation speed and the rotation direction of the sprockets 17b and 27b by the motor 34.
The rotation speed and the rotation direction of 8, 30 can be adjusted. The rotation speed and the rotation direction of the chain portions 28 and 30 are always the same.

Further, the motor 34 is rotated forward or backward by a predetermined pitch by operating a switch (not shown) once, and such rotation is transmitted to the sprockets 17b and 27b, and the adjacent central portions. Holding part 20
The chain portions 28 and 30 are rotated so as to move by the same distance as the distance between them (the distance between the adjacent upper end holding portions 19), that is, by one step of the holding member 4.

The pedestal part 18 supports the lower part of the first rotating part 17 via the bracket B.
5, and the second rotating portion 27 through the bracket B as well.
The second supporting portion 36 for supporting the lower part of the
And a back surface support portion 37 that supports the upper portion of The lower ends of the first support portion 35, the second support portion 36, and the back surface support portion 37 are fixed to the bottom portion of the luggage carrier N, respectively. Then, by the gantry portion 18 having such a configuration, the first rotating portion 1
The front surfaces of 7 and the second rotating portion 27 are held in a state of being inclined such that they are located rearward as they go upward.

Next, the operation of the 16-stage holding members 4, 4, ... Will be described. When the holding member 4 is located at a position other than the lowermost end (hereinafter, referred to as an unloading position) on the front surface of the first rotation part 17 and the second rotation part 27 (hereinafter, the two are collectively referred to as a frame body). The road sign R cannot be loaded on the holding member 4 or taken out of the holding member 4. That is, the holding member 4 that holds the road sign R cannot be moved to the back side of the frame, and when the holding member 4 is on the back side of the frame, the road sign R is The road sign R cannot be loaded onto the holding member 4 or taken out from the holding member 4. Further, the retaining plate 31 provided on the front surface of the second rotating portion 27 except for the loading / unloading position.
Has a function of preventing the locking metal fitting 3 of the main shaft portion 2 from being pulled out of the metal fitting locking portion 26 or fitted into the metal fitting locking portion 26, so that the holding member 4 is a frame member. When it is located at a position other than the loading / unloading position on the front side of the vehicle, the road sign R to which the locking metal fitting 3 is fixed is loaded into the holding member 4 or the road sign R is taken out from the holding member 4. I can't.

However, since the retaining plate 31 is not formed at the lowermost unloading position on the front surface of the frame body, by moving each holding member 4 to the unloading position,
The road sign R is loaded on the holding member 4 or the holding member 4
It is possible to take it out from.

In order to load the road sign R on the road sign rack D on which the road sign R is not loaded, first, the chain parts 28, 30 are rotated by the motor 34 so that the holding members 4, 4 ,. The sheet is fed to the back side through the lower surface of the frame body, and the holding member 4 at the uppermost stage is provided only on the front side of the frame body at the loading / unloading position. The state at this time is called the initial state.

In the road sign rack D in the initial state, after the road sign R is loaded on the holding member 4 at the unloading position, a chain pusher 28 (30) is rotated by pressing a not-shown push button switch. Then, the holding member 4 on which the road sign R is loaded is moved so as to be raised further. At this time, the holding member 4 on which the road sign R is not newly loaded is moved to the loading / unloading position. Then, the road sign R is loaded on the holding member 4, and thereafter, the operation of pushing up the holding member 4 by pushing the upward push button switch is repeated to load up to 16 road signs R on the holding member 4. It becomes possible.

In the road sign rack D in which 16 pieces are loaded, all the holding members 4 are finally in the front of the frame. In addition, when the holding member 4 is left in the loading / unloading position after the loading of the road sign R on the last holding member 4 is completed, the retaining plate 31 does not cover the locking fitting 3, The road sign R may come off from the holding member 4. Therefore, the last holding member 4 is moved from the loading / unloading position to the position raised by one step.

In order to take out the road sign R from the road sign rack D loaded with the road sign R in this way, a holding member 4 holding the road sign R is pushed by pressing a downward push button switch (not shown). Is moved to the loading / unloading position, the road sign R is taken out, and then the operation of pressing the downward push button switch again is repeated. If the holding member 4 holding the road sign R is sent from the front side to the back side of the frame, the road sign R comes into contact with the pedestal portion 18, and thus cannot be sent to the back side. Therefore, it is necessary to take out the road sign R from the holding member 4 in order.

As described above, the chain portions 28 and 30 of the road sign rack D cannot rotate endlessly.
Therefore, the road sign R taken out from the road sign rack D
If the order of is decided, the road sign R which is desired to be taken out should be loaded later. Then, when the road sign R is taken out, the road sign R desired to be taken out first
It is possible to take it out from.

In the road sign rack D having the above structure, the retaining plate 31 is fixed,
Only when the holding member 4 is in the loading / unloading position on the front surface of the frame body, the road sign R can be loaded into the holding member 4 or the road sign R can be taken out from the holding member 4, but the configuration is limited to such a configuration. is not. For example, the retaining plate 31
It is also possible to freely release and return the retaining stopper by.

According to the road sign rack D having the above structure, the loaded road signs R can be moved by a single switch, and the road signs R can be stacked in multiple stages. An operator who gets down on the road can load and unload the road sign R by himself.

Further, the road signs R loaded on the road sign rack D are dropped by the locking metal fittings 3, the metal fitting locking portions 26, the retaining plates 31, etc. so as not to drop during traveling as described above. Preventive measures are taken. Further, the road sign R is fixed to the main shaft portion 2 of the road sign R in order to prevent the display portions 1 of the road sign R from interfering with each other by rotating the road sign R around the axis of the main shaft portion 2. The locked metal fitting 3 is locked to the metal fitting locking portion 26 of the central holding portion 20 to prevent the main shaft portion 2 from rotating.

In the above embodiment, the protrusion 21 is
Although the member is a substantially cylindrical or columnar member, the member is not limited to this. For example, as shown in FIGS. 8A and 8B, the plate-shaped vertical member 33 is provided at the center of the upper surface of the plate-shaped horizontal member 32. The structure may be fixed. Also, the horizontal member 32
Since the cut-off portions 34, 34 are provided on both sides of the front surface of the vertical member 33 and the cut-off portion 35 is provided on the upper portion of the front surface of the vertical member 33, the horizontal member 32 and the vertical member 33 are respectively tapered toward the front, It becomes possible to easily attach and detach the upper end of the.

When the upper end of the main shaft portion 2 is open, the protrusion 21 may be inserted inside the main shaft portion 2 as described above. The outside of the upper end portion of the main shaft portion 2 may be sandwiched so as to be able to cope with the case where it is not open (for example, with a lid). Therefore, the configuration of the protrusion 21 may be, for example, a cylindrical shape whose inner diameter is substantially the same as or slightly larger than the outer diameter of the main shaft portion 2, or FIG.
As shown in (D), three plate-shaped members 36, 36, 36
Alternatively, the outer circumference of the main shaft portion 2 may be clamped. In addition, since the cut-off portion 37 is provided on the side of the front portion of each plate-shaped member 36 that contacts the main shaft portion 2, the plate-shaped member 36 is
Becomes thinner toward the front, which makes it easier to install and remove the main shaft portion 2.

[0040]

According to the present invention having the above-mentioned structure, a large space for loading a safety cone or the like can be secured by reducing an occupied space on a loading platform of a vehicle carrying a road sign, and each road sign can be secured. By holding the display in an easy-to-see state, you can easily find the target sign, you can prevent the damage of the road sign during transportation, and you can load and unload the road sign by yourself. Racks can be provided.

[Brief description of drawings]

FIG. 1 is a front view schematically showing the configuration of a road sign rack according to an embodiment of the present invention.

FIG. 2 is a side view schematically showing the configuration of the road marking rack of the above embodiment.

FIG. 3A is a rear view schematically showing the structure of the road sign in the above embodiment, and FIG. 3B is a vertical sectional view schematically showing the structure of the metal fitting.

FIG. 4 is a vertical cross-sectional view schematically showing a configuration of a main part of the above embodiment.

5 is a cross-sectional view taken along the line AA of FIG.

6A and 6B are a partially cut vertical sectional view and a plan view for explaining how to attach a road sign to a holding member in the above embodiment.

FIG. 7 is a perspective view schematically showing a method of using the road sign rack in the above embodiment.

8A and 8B are a vertical cross-sectional view and a front view showing another example of the protrusion in the above embodiment,
(C) And (D) is a longitudinal section and a front view showing other examples of a projection part in the above-mentioned example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Display part, 2 ... Main shaft part, 3 ... Locking metal fittings, 17 ... First rotation part, 18 ... Stand part, 19 ... Upper end holding part, 20 ... Central holding part, 27 ... Second turning part, 34. … Motor, D… Road sign rack, R… Road sign.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-9-301046 (JP, A) JP-A-7-331627 (JP, A) JP-A-4-237709 (JP, A) JP-A-59- 106609 (JP, A) JP-A-6-321000 (JP, A) Actually opened Sho 64-3706 (JP, U) Actually opened 59-74242 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60P 1/48 B60P 3/00

Claims (4)

(57) [Claims] 1. A road sign comprising a flat plate-shaped display part and a pipe-shaped main shaft part which holds the display part on the front surface and is provided with a locking metal fitting at a position a certain distance from the upper end. It is possible, and the upper end holding portion for fixing the upper end of the main shaft portion, the first rotating portion provided in a row at equal intervals,
A second rotating portion that holds a middle portion of the main shaft portion and has central holding portions for locking the locking metal fittings arranged in a row at equal intervals, and the first and second rotating portions. A road sign rack comprising: a motor that rotates a predetermined pitch in a single operation so as to be interlocked with each other; and a pedestal portion that supports the first and second rotating portions. 2. The road sign rack according to claim 1, wherein the front surfaces of the two rotating portions are formed into inclined surfaces that are located rearward as they go upward. 3. The road sign rack according to claim 1, wherein the road sign main body can be non-rotatably held by locking the locking metal fitting to the central holding portion. 4. In order to prevent the locking metal fittings locked to the central holding portion from falling off from the central holding portion,
The road sign rack according to claim 3, wherein the second rotating portion is provided with a retaining plate.