JP7266887B2 - Folding traffic display panel - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding traffic display panel applied to display panels commonly called arrow boards.

Conventionally, as shown in Japanese Patent Application Laid-Open No. 2002-100002, there is known an arrow board in which the upper ends of a pair of rectangular panels are connected so as to be openable and rotatable, and both ends are connected together with the panels by a foldable rack.

Japanese Patent Application Laid-Open No. 2020-522

When the front and rear panels of the arrow plate are opened in an inverted V shape and placed on the ground, a weight is placed on the extended rack at the inner bottom end to prevent wind pressure from passing by strong winds or large vehicles. Alternatively, there is an advantage that it is possible to maintain a stable posture that can prevent overturning, movement, collision with other objects, etc. against other vibrations. It also has the advantage that it can be easily moved and carried by holding a handle provided at the center of the upper end of the panel regardless of whether the legs are open or folded.

On the other hand, when folding the display panel when removing or moving it from the position where the legs are open, after the weight is lowered, the display panel is turned to either the left or right side of the panel to move the connection point of the frame in the center of the rack upward. Manual work (rotating the front and back frames) is required, and at work sites where speed is required at construction sites, disaster sites, emergency traffic guidance sites, etc., quicker removal and change of guidance direction (panel (replacement and carrying) work is required to change the indicated direction of the arrow.

The passage display panel of the present invention for solving the above problems is a self-supporting display panel that is first provided with a display panel 1 on the surface side and can be folded and opened by spreading the legs forward and backward. A rack 7 for placing weights, which is folded and opened and closed on the back side of the panel 1 as the panel 1 is folded and opened, is connected to the lower end side of the panel 1. In the display panel as a mechanism for maintaining the posture, the panel 1 is folded into the bottom surface of the rack 7 in an open leg posture with the panel 1 on the ground, and when the panel 1 is lifted, the panel 1 protrudes downward from the bottom surface of the rack 7. is lowered in the grounding direction again, the protruding end touches the ground to start folding the rack 7, and in conjunction with the folding operation, the panel 1 is folded from the open leg posture. It is characterized by being provided in the rack 7.

Secondly, it is characterized in that the attachment 24 is stored on the back side of the panel 1 which is folded as the panel 1 is folded.

Thirdly, one end of a rod-shaped attachment 24 of a predetermined length is pivotally supported on the side of the rack 7 so as to be able to swing up and down. It is characterized in that it has a mechanism that protrudes downward to the bottom surface side of 7 .

Fourthly, the display panel is an inverted V-shaped display panel in side view, in which the upper ends of a pair of front and rear panels 1, 1 are connected so as to be capable of opening and closing rotation.

According to the display panel of the present invention constructed as described above, the front and rear panels are automatically folded by lifting the panel placed in the open-legged state by a certain height and lowering it again toward the ground. , there is no need for manual folding of the rack to fold the panel for convenience of carrying and storage, and the work efficiency at the site is improved. In particular, when the front and rear sides of the rack are panels, manual work from the left and right opening sides is not required for folding the rack, so the above effects are even greater.

In addition, the attachment for folding operation is stored on the back (inner side) of the folded panel. Since it is rotatably supported on the rack side, the hanging attachments can be easily swung and housed in the bottom of the rack by moving the panel back and forth when arranging the panel. no.

1 is an overall perspective view of a display panel of the present invention; FIG. FIG. 4 is an enlarged side cross-sectional view of a main part in a state where the display panel is arranged on the floor; FIG. 4 is a side cross-sectional view of a main part in a state in which display panels are stacked; FIG. 4 is an enlarged side view showing the self-folding mechanism of the display panel of the present invention;

1 to 4 show one embodiment of the display panel of the present invention. FIG. 1 is an overall perspective view of the display panel. Front and rear rectangular or square aluminum plate panels 1 can be rotated and opened at the upper ends. The upper ends of the panels 1 are connected and fixed to a hinge-like joint member 2 made of extruded aluminum with fasteners 3 such as screws or rivets so that they can be folded and opened. A grounding leg 4 having a U-shaped cross section made of rubber or plastic material is externally fitted and fixed with a fastener 6 such as a screw or a rivet.

The panel 1 is stably arranged on the ground surface GL in an inverted V shape in a side view when the legs are open. A rack 7 is connected to the inner surface side of the panel 1 to hold the state and to be stored together with the panel 1 in the folded state in the folded state.

A reflective sheet 1a made of plastic is adhered to the entire surface of the panel 1, and the reflective sheet 1a is of a diffuse reflection type called, for example, a prism lens type reflective sheet, a capsule lens type reflective sheet, or a high brightness reflective plate. An end cover 8 having an L-shaped cross section made of a band-shaped aluminum member covering the end surface and end face of the reflection sheet 1a is used at both the left and right ends. are fixed with screws or rivets. The end covers 8 are for the protection of the reflective sheet 1a, the reinforcement of the ends of the panel 1, and the safety of workers during handling. Further, a display portion 9 showing an arrow indicating the direction of traffic and its shadow is printed and displayed at substantially the center of the reflection sheet 1a.

As shown in FIGS. 2 and 3, slide walls 2a-1 and 2b-1 having arcuate cross sections partially overlap each other in a side view of the joint member 2, and a rotation fulcrum 2c is provided at the center of the arc (axis O ₁ ). and a pair of joint pieces 2a, 2b provided with skirt portions 2a-2, 2b-2 extending downward from the outer ends of the slide walls 2a-1, 2b-1 to attach the upper ends of the front and rear panels 1. A known member is used.

At the center of the joint member 2, a handle 13, which is provided with a hook 12 in the panel 1 and is bent like a gate when viewed from the front, is slidable up and down in a state in which the joint member 2 can be opened and closed and rotated without hindering it. is inserted. A pair of front and rear rubber covers 14 are attached to the left and right ends of the joint member 2 so as to cover the end peripheral surface and the end surface.

Suspending portions (strings) 17 of weights 16 made of sandbags or the like are suspended from the hooks 12, and the weights 16 are placed on the racks 7 as will be described later so that the racks 7 are sufficiently stretched and along the ground surface. It is used to bring the display panel close to or grounded to increase the fixing force and stability to the ground plane of the display panel.

At the upper and lower ends of the exposed surface of the panel 1, as shown in FIGS. 1 and 2, a protective member 18 is attached, which is made of an elongated elastic member in the left-right direction and has a channel-shaped cross section opened toward the surface side. In this example, it is fixedly attached to the upper and lower ends of the panel 1 by fasteners 19 such as screws or rivets. A mounting plate 21 made of a strip-shaped metal plate is accommodated inside the channel-shaped cross section of the protective member 18, and the protective member 18 is mounted and fixed to the upper and lower ends of the panel 1 via the mounting plate 21 by fasteners 19. there is

The rack 7 is assembled so as to be foldable and rotatable by connecting front and rear frames 7a and 7b, which are made by assembling aluminum pipe materials having a square cross section in a lattice shape, at the center of the front and back by connecting them at the pivot point (axis center O ₂ ) of the connecting shaft 15 . configured together. On the other hand, the front and rear ends of the rack 7 are connected to the front and rear panels through the rotation fulcrum (axis O ₃ ) of a connecting shaft 20 which is housed in a bearing member 22 having a channel-shaped lower end and an L-shaped cross section as a whole. 1 is rotatably pivotally supported between the inner surfaces of the lower ends thereof.

In this example, as shown in FIG. 4, the bearing member 22 and the connecting shaft 20 housed in the channel-shaped cross section at the lower end of the bearing member 22 are attached by fasteners 6 in the left-right direction along the inner surface of the leg portion 4 at the lower end of the panel, The housing posture within the bearing member 22 is maintained by the head (bolt head) of the fixture 6 .

With this mechanism, the rack 7 is in the open state by rotating the panel ₁ in the direction of the arrow a about the axis O1 and the frames 7a and _7b in the direction of the arrow b about the axis O3. It is possible to fold from the bottom to the closed state, and it is possible to open the legs by reverse operation. When the legs of the panel 1 are open, as shown in FIGS. 1 and 2, grids (frame members) intersecting vertically and horizontally at the connecting ends of the frames 7a and 7b of the rack 7 overlap each other by a stopper mechanism 7c described later. It does not rotate downward any more, is fixed in a flat plate-like extended posture, and touches the ground plane or stops close to it.

When the weight 16 is placed in this extended state, the weight of the weight 16 firmly and stably holds the extended posture of the rack 7, that is, the open posture of the isosceles triangle of the display panel when viewed from the side, and is not affected by strong wind pressure or other equipment. It can maintain a fixed posture on the ground surface without falling or moving even when it comes in contact with the ground surface.

When the front and rear panels 1 and the rack 7 of the display panel are folded, the front and rear panels 1 are kept parallel to each other with the lower ends of the frames 7a and 7b in contact with each other as shown in FIG. The thickness of the frames 7a and 7b is designed so that Furthermore, when stacking a plurality of display panels in this folded state, the open end of the channel-shaped cross-section of the protection member 18 on the stacking surface as shown in the figure is positioned inside the channel of the protection member 18 of the other display panel. It abuts against the mounting plate 21 and is stacked in a state where the channels are engaged with each other.

For this reason, the surface of the panel 1 of each display panel is prevented from coming into contact with the surface of other display panels and uneven portions even in the stacking state, and the printed display on the surface of the panel 1 is damaged by these contact and abrasion. Not at all. In particular, when an expensive reflective sheet 1a such as a high-brightness reflective sheet is used on the display surface of the panel 1 as in the illustrated embodiment, the reflective function of the panel 1 itself is reduced by protecting the display section 9 and the reflective heat 1a. The life of the battery can be maintained for a long time, and the economic effect is also large.

In addition, since the protective member 18 itself protrudes over the entire width of the surface of the panel 1, at least contact with other members straddling both protective members 18 is prevented. By overlapping the panels 18 in a mutually meshing state, the external force applied to the panels 1 during stacking is elastically dispersed and the impact resistance is excellent, and the display panels slide sideways or the load collapse due to sideways sliding is prevented. There are advantages to be had.

Next, the _rack folding mechanism of the present invention will be described. One end of a rod-shaped attachment 24 along the vertical frame member 23a is rotatably (swingably) supported. On the other hand, as shown in FIGS. 1, 2, and 4, the front and rear frames 7a and 7b extend horizontally to extend horizontally and extend to the horizontal frame member 23c on the inner end of the left frame 7a. constitutes a stopper mechanism 7c that stops in a flat plate state in contact with the upper surface of the right frame 7b. Due to this plate-like stopped state, the rack 7 is opened to the maximum width and locked.

In the illustrated example, the attachment 24 is an aluminum square member having the same cross section as the frame member of the rack 7, and its tip (swing end) is adjacent to the connecting shaft 15 and is fixed to the upper surface side of the horizontal frame member 23b. It is formed to have a length that stops in contact with the lower surface of the Therefore, when the panel 1 is on the ground with the legs spread, the attachment 24 is held in the rack 7 in a horizontal position along the vertical frame member 23a while contacting the ground surface GL.

On the other hand, when the panel 1 is lifted by the handle 13 by the operator beyond the length of the attachment 24, the attachment 24 rotates counterclockwise by its own weight in the direction of the arrow c, and reaches the position indicated by the imaginary line shown in the drawing. Sagging direction downwards. A plate-like stopper 26 is provided on the vertical frame member 23a so that the attachment 24 does not rotate beyond the vertical direction. It is a mechanism that abuts on one side of the stopper 26 to restrict its rotation.

In order to close and fold the panel 1 from the above state, the lifted panel 1 is lowered (in the direction of the arrow a) and lowered to the projection height H of the attachment 24 (see FIG. 4). In contact with the surface GL, the connecting shaft center _O2 of the frames 7a and 7b moves upward in the direction of the arrow b, and the rack 7 is folded in the chevron direction along with this movement, and the frames 7a and 7b are interlocked with this movement. Finally, the front and back panels are rotated by their own weights until they overlap each other as shown in FIG. 3, and the folding is completed.

In the folded state, the pair of panels are overlapped substantially parallel to each other to form an integral panel, so that it can be easily carried and moved by a handle. In this folded state, the attachment 24 is raised and housed between the front and rear panels in conjunction with the folding of the rack 7 .

In order to open the panel 1 in the folded state, the front and rear panels 1, 1 must be manually pushed open. By grounding the tip of the attachment 24 while horizontally moving in the direction (forward in this example), the attachment 24 is horizontally tilted along with the panel 1 grounding, and the panel is folded by the operation of the attachment 24 when arranged. no.

1 panel 7 rack 7a, 7b frame 7c stopper mechanism 23a to 23c frame material 24 attachment 26 stopper

Claims (4)

A display panel (1) is provided on the surface side, and is a self-supporting display panel that can be folded and opened by spreading legs forward and backward. A weight mounting rack (7) that folds open and closes is connected to the lower end of the panel (1). In the display panel as a holding mechanism, the panel (1) is folded into the bottom surface of the rack (7) in an open leg posture with the panel (1) on the ground, and the panel (1) is lifted from the bottom surface of the rack (7). Projecting downward, by lowering the panel (1) again in the direction of the ground, the projecting end touches the ground and starts folding the rack (7), and the panel (1) is opened in conjunction with the folding operation. A folding type traffic display panel provided with an attachment (24) for opening legs to be folded from a posture on a rack (7). 2. The folding type traffic display panel according to claim 1, wherein the attachment (24) is stored on the back side of the panel (1) that is folded as the panel (1) is folded. One end of a rod-shaped attachment (24) of a predetermined length is pivotally supported on the side of the rack (7) so as to be able to swing up and down. 3. A folding type traffic display panel according to claim 1 or 2, wherein the folding type traffic display panel has a mechanism that moves and protrudes downward to the bottom side of the rack (7). 4. The display panel according to any one of claims 1 to 3, wherein the display panel is an inverted V-shaped display panel in side view, in which the upper ends of a pair of panels (1, 1) on the front side and the rear side are connected so as to be capable of opening and closing rotation. Foldable traffic display panel.

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