JPH11323850A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device used as a traffic sign which is capable of prevent traffic accident by informing the drivers or the like of dangerous traffic situation, can be easily installed at a low cost in an area where there is no electric facilities without causing troubles or failures. SOLUTION: This display device comprises a sub-display board 12 indicating a warning message, a supporting frame 14 supporting the sub-display in a freely movable manner, a main display 10 normally concealing the sub-display and a coil spring 18 made of a shape-memorizing alloy and moves the sub-display out of the main display. And if air temperature drops below the predetermined temperature, the sub-display moves and is exposed above the main display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to information used as a traffic sign which is installed on a road to display a warning such as freezing of a road surface, and a safety sign for notifying a worker of danger in a factory or the like. It relates to a display device.

[0002]

2. Description of the Related Art In a cold region, in the winter, local road surface freezing occurs at a mountain road or at a corner of a road along a coast, and accidents such as derailing due to slipping and collision between vehicles occur frequently. These places are shaded even during the day, and often have poor visibility, and can be said to be roads that have potential dangers in traffic. Therefore, in such a place, a signboard is installed to notify the driver of the vehicle that the road surface is likely to be frozen and dangerous.

[0003]

However, the conventional signboard merely displays that the slip accident is likely to occur due to the freezing of the road surface. The driver does not know whether it is in a state or not. Therefore, even if a signboard is installed on the road, it cannot always draw the attention of all drivers.
A driver who travels around the place many times may lose his attention due to getting used to it. For this reason, when the road surface actually freezes and the road surface is really dangerous, the driver's attention cannot be sufficiently raised, and the effect of the signboard cannot be expected much. There is a point.

A warning display device equipped with a temperature sensor, a controller, a lamp type display and the like may be installed on a road, and the temperature may be detected and a warning message may be automatically displayed on the display. Conceivable. However, such a warning display device cannot be installed in a place where there is no electric equipment, such as a mountain, and the installation is troublesome and costly. In addition, if a failure occurs due to mischief or the like, such a warning display device cannot perform its function when necessary, and the burden of maintenance and inspection work increases.

[0005] The present invention has been made in view of the above circumstances, and is used for traffic signs, safety signs in factories, and the like, and is therefore dangerous to drivers and workers. Can alert you to your alertness, prevent accidents before they occur, and can be easily installed even in places without electrical equipment, cost less and cause breakdowns It is an object of the present invention to provide an information display device with less worry and less burden on maintenance and inspection work.

[0006]

The invention according to claim 1 is
An information display unit that displays information related to air temperature or ambient temperature, a support unit that linearly reciprocates the information display unit, and is provided within a movable range of an information display surface of the information display unit; A shielding unit that constantly shields the information display surface of the information display unit, and a moving member that is connected to the information display unit and moves the information display unit so that the information display surface of the information display unit protrudes from the shielding unit. An information display device comprising: a moving member formed of a shape memory alloy; and when an air temperature or an ambient temperature falls below a predetermined temperature or exceeds a predetermined temperature, the information display section is moved to display the information. A surface is exposed from the shielding portion.

According to a second aspect of the present invention, there is provided an information display section which displays information related to air temperature or ambient temperature and is fixed, and the information display section of the information display section is linearly positioned so as to be located within a movable range. A shielding part which is disposed so as to be capable of reciprocating movement and always shields the information display surface of the information display part, a support part which movably supports the shielding part, and is connected to the shielding part, and the shielding part is provided with the information part. A moving member for moving the shielding unit so as to shield and expose the information display surface of the display unit, wherein the moving member is formed of a shape memory alloy, and the air temperature or the ambient temperature is a predetermined temperature. When the temperature falls below or exceeds a predetermined temperature, the shielding portion is moved so that the information display surface of the information display portion is exposed.

According to a third aspect of the present invention, there is provided an information display section for displaying information relating to an air temperature or an ambient temperature, a support section rotatably supporting the information display section around a fulcrum, and the information display section. A shielding unit that is provided within the movable range of the information display surface of the unit and constantly shields the information display surface of the information display unit; and the information display unit is connected to the information display unit, and the information display surface of the information display unit protrudes from the shielding unit. A rotating member for rotating the information display unit so that the rotating member is formed of a shape memory alloy, and an air temperature or an ambient temperature falls below a predetermined temperature or exceeds a predetermined temperature. The information display section is rotated so that the information display surface is exposed from the shielding section.

According to a fourth aspect of the present invention, there is provided an information display section which displays information related to air temperature or ambient temperature and is fixed, and a fulcrum is provided so that an information display surface of the information display section is located within a movable range. A shielding portion that is rotatably arranged as a center and always shields the information display surface of the information display portion, a support portion that rotatably supports the shielding portion, and is connected to the shielding portion, and the shielding portion is A rotating member for rotating the shielding unit so as to shield and expose the information display surface of the information display unit, wherein the rotating member is formed of a shape memory alloy, and the temperature or atmosphere When the temperature falls below a predetermined temperature or exceeds a predetermined temperature, the shielding portion is rotated so that the information display surface of the information display portion is exposed.

According to a fifth aspect of the present invention, there is provided an information display unit for displaying information relating to an air temperature or an ambient temperature, a support unit for supporting the information display unit upside down, and connected to the information display unit. An information display device comprising: an elevating member that causes the information display unit to fall and erect, wherein the elevating member is formed of a shape memory alloy, and when an air temperature or an ambient temperature falls below a predetermined temperature or exceeds a predetermined temperature. The information display section is raised.

In the information display device according to the first aspect of the present invention, for example, when the air temperature falls below a predetermined temperature and the road surface freezes on the road on which the device is installed, or when the ambient temperature exceeds the predetermined temperature, When there is a risk of burns in the boiler equipment etc. where the device is installed, the moving member formed of shape memory alloy changes to the stored shape, and the information display section is moved by the moving member. The information display surface of the information display unit, which is normally shielded and hidden by the shielding unit, is exposed from the shielding unit, and information such as “freezing on the road surface” and “caution of burn” displayed on the information display unit Becomes visible. On the other hand, when the temperature rises and exceeds the predetermined temperature, or when the ambient temperature decreases and falls below the predetermined temperature, the moving member returns to the original shape,
The information display unit is moved in the opposite direction by the moving member, the information display surface of the information display unit is shielded by the shielding unit, and information such as "freezing on the road surface" and "caution against burns" becomes invisible.

In the information display device according to the second aspect of the present invention, for example, when the air temperature falls below a predetermined temperature, the road surface freezes on the road on which the device is installed, or when the ambient temperature exceeds the predetermined temperature, If there is a risk of burns in the boiler equipment where the device is installed, the moving member formed of the shape memory alloy changes to the memorized shape, and the shielding part is moved by the moving member. However, the information display surface of the information display unit, which is normally shielded and hidden by the shielding unit, is exposed, and information such as “freezing on the road surface” and “caution of burn” displayed on the information display unit can be seen. . On the other hand, when the temperature rises and exceeds the predetermined temperature, or when the ambient temperature decreases and falls below the predetermined temperature, the moving member returns to its original shape, and the moving member moves the shielding portion in the opposite direction. The information display surface of the information display unit is shielded by the shielding unit, and “road surface freeze”
And information such as "Caution for burns" disappear.

In the information display device according to the third aspect of the invention, for example, when the air temperature falls below a predetermined temperature, the road surface freezes on the road on which the device is installed, or when the ambient temperature exceeds the predetermined temperature, When there is a risk of burns in the boiler equipment or the like where the device is installed, the moving member formed of the shape memory alloy changes to the stored shape, and the information display unit is rotated by the rotating member. The information display surface of the information display unit that is moved and is normally shielded and hidden by the shield unit is exposed from the shield unit, and “road surface freezing” and “warning warnings” displayed on the information display unit are displayed. Such information becomes visible. On the other hand, when the temperature rises and exceeds the predetermined temperature, or when the ambient temperature decreases and falls below the predetermined temperature, the rotating member returns to its original shape,
The information display unit is rotated in the opposite direction by the rotation member, and the information display surface of the information display unit is shielded by the shielding unit, so that information such as "freezing on the road surface" and "caution against burns" becomes invisible.

[0014] In the information display device according to the fourth aspect of the invention, for example, when the air temperature falls below a predetermined temperature, the road surface freezes on the road on which the device is installed, or when the ambient temperature exceeds the predetermined temperature, When there is a risk of burns in the boiler equipment or the like in which the device is installed, the rotating member formed of the shape memory alloy changes to the memorized shape, so that the shielding member is rotated by the rotating member. The information display surface of the information display unit, which is normally covered and hidden by the shielding unit, is exposed, and information such as "freezing on the road surface" and "caution of burn" displayed on the information display unit is visible. Become like On the other hand, when the temperature rises and exceeds the predetermined temperature, or when the ambient temperature decreases and falls below the predetermined temperature, the rotating member returns to its original shape, and the shielding portion is moved in the opposite direction by the rotating member. It is moved, the information display surface of the information display unit is shielded by the shielding unit, and "road surface freeze"
And information such as "Caution for burns" disappear.

In the information display device according to the fifth aspect of the present invention, for example, when the air temperature falls below a predetermined temperature, the road surface freezes on the road on which the device is installed, or when the ambient temperature exceeds the predetermined temperature, When there is a risk of burns in the boiler equipment where the device is installed, the falling member made of shape memory alloy changes to the memorized shape, and the information display part is turned by the falling member. The information display surface of the information display unit, which cannot be seen from the front because it stands up and is always lying down, is exposed, and "road surface freezing" and "caution for burns" displayed on the information display unit
Such information as can be seen from the front. on the other hand,
When the temperature rises and exceeds a predetermined temperature, or when the ambient temperature decreases and falls below a predetermined temperature, the raising and lowering member returns to its original shape, so that the information display section is turned down and "road surface freezing" occurs.
And information such as "Caution for burns" disappear from the front.

[0016]

Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of an information display device showing one embodiment of the present invention. This information display device is used as a traffic sign, and has a main signboard 10 on which a warning message is displayed on the front, and a sub signboard 12 arranged on the back side of the main signboard 10 and protruding from the upper side of the main signboard 10. A support frame 14 for supporting the auxiliary signage 12 so as to be able to reciprocate linearly in a vertical direction, and an upper end portion fixed to an upper frame portion 16 of the support frame 14 and a lower end portion fixed to an upper side portion of the auxiliary signage 12. And a pair of coil springs 18.

On the front of the sub signboard 12, a warning message "Road surface freezing" is displayed. Both sides of the sub signboard 12 are slidably fitted in guide grooves 22 formed in both side frame portions 20 of the support frame 14, respectively. The signboard 10 is hidden behind or exposed from the upper side of the main signboard 10. The coil spring 18 connected to the sub signboard 12 is formed of a shape memory alloy, and stores a contracted shape as shown in FIG. 1B at a predetermined temperature, for example, at a temperature of 0 ° C. or less. ing.

The information display device having the above-described configuration is installed on a road in front of a road such as a road on a mountain or a road along a seashore where the road surface freezes in winter. In a normal temperature state, as shown in FIG. 1A, the sub signboard 12 is hidden behind the main signboard 10 and cannot be seen from the outside. On the other hand, when the temperature falls below 0 and the road surface freezes, the coil spring 18 formed of the shape memory alloy changes to the stored contracted shape as shown in FIG. By doing so, the sub sign 12 is pulled up by the coil spring 18, and the warning message of the sub sign 12 is exposed and visible from the main sign 10. When the temperature rises and exceeds 0 ° C., the coil spring 18 returns to the original shape, so that the sub signboard 12 descends and moves to the rear side of the main signboard 10 as shown in FIG. Hide again and the warning message disappears.

In the information display device shown in FIG. 1, a coil spring 18 formed of a shape memory alloy is provided between the upper frame 16 of the support frame 14 and the upper side of the sub signboard 12, and Although the sub-signboard 12 is suspended from the frame 16 by the coil spring 18, as shown in FIG.
The coil springs 32 and 34 may be inserted between the upper and lower sides of the support frame 4 and the upper and lower frames 28 and 30 of the support frame 26, respectively. FIG. 2 (the same applies to FIGS. 3 and 5 described later) shows a state where the main signboard is removed. FIG. 2A shows a state in which the sub signboard 24 is hidden behind the main signboard at normal temperature, and FIG. 2B shows a state in which the temperature is lower than 0 ° C. and the sub signboard 24 is hidden from the main signboard. The signboard 24 has been exposed.

In the configuration shown in FIG. 2, the upper coil spring 32 of the sub sign 24 is formed of a shape memory alloy similarly to the device shown in FIG. Is formed by a bias spring biased in the contraction direction. In this way, when the air temperature falls below 0 ° C., the sub-signboard 24 rises by changing the shape of the upper coil spring 32 to the stored shape against the contraction force of the lower coil spring 34. I do. On the other hand, when the temperature rises to 0 ° C. or more, the lower coil spring 34
The sub signboard 24 descends smoothly due to the restoring force of.

In the apparatus having the structure shown in FIG.
Contrary to the above, the upper coil spring 32 of the sub sign 24 is formed by a bias spring biased in the extension direction, and the lower coil spring 34 of the sub sign 24 is heated at a temperature of 0 ° C. or less. It may be made of a shape memory alloy in which the shape as shown in FIG. 2B is stored. Further, the coil springs 32 and 34 on the upper and lower sides of the sub sign 24 may be formed of a shape memory alloy. Further, although not shown, unlike the device shown in FIG. 1, a coil spring formed of a shape memory alloy is inserted only between the lower side of the sub signboard and the lower frame of the support frame. You may do so.

The information display device shown in FIG.
A pair of plate-like members 42 formed of a shape memory alloy are interposed between the lower side of the support frame 38 and the lower frame 40 of the support frame 38. As described above, the moving member formed of the shape memory alloy for moving the sub signboard according to the temperature can be formed in various shapes.

Further, the information display device shown in FIG. 4 has a sub signboard 4 on which a warning message of "road surface freezing" is displayed on the front.
The sub-signboard 44 is moved so that the four reciprocates linearly in the lateral direction.
The upper side and the lower side are slidably engaged with the upper frame 48 and the lower frame 50 of the support frame 46, respectively, and the sub sign 44 reciprocates in the horizontal direction, so that the main sign 52 is displayed.
Of the main signboard 52 is hidden from the back side of the main signboard 52 or is exposed from the right side of the main signboard 52. In FIG. 4, the sub-signboard 4
A moving member formed of a shape memory alloy for moving the member 4 in response to a change in temperature is not shown.

Next, in the information display device shown in FIG. 5, the auxiliary sign 54 on which the warning message is displayed is attached to the pivot rod 56, and the pivot rod 56 is attached to the support frame 58. It is rotatably supported by a pivot 60, and is provided with a bar-shaped member 62 having one end fixed to a rotation rod 56 and the other end fixed to the lower end of a support frame 58. The rod-shaped member 62
It is made of a shape memory alloy, and stores a shape as shown by a solid line in FIG. 5 at a predetermined temperature, for example, at a temperature of 0 ° C. or less. Then, the sub sign 54 attached to the turning rod 56 is rotated so that the turning rod 56 turns around the turning support shaft 60, and the main signboard (not shown) is indicated by a two-dot chain line. They are hidden behind or exposed from the side of the main sign.

In the information display device having the structure as shown in FIG. 5, the sub sign 54 is hidden behind the main sign and cannot be seen from the outside at room temperature, as indicated by the two-dot chain line. On the other hand, when the temperature drops below 0 ° C. and the road surface freezes, the rod-shaped member 6 made of a shape memory alloy is used.
2 is bent into the stored shape as shown by the solid line, so that the rotating rod 56 is rotated by the rod-shaped member 62, and the sub sign 54 is accordingly moved from the main sign as shown by the solid line. It becomes exposed and visible. Further, when the temperature rises and exceeds 0 ° C., the bar-shaped member 62 returns to the original shape, so that the sub-signboard 54 is hidden behind the main signboard again and becomes invisible, as indicated by the two-dot chain line.

In the information display device shown in FIG. 6, the sub-signboard 64 on which the warning message of "road surface freezing" is displayed,
The auxiliary sign 64 is rotatably supported by a rotation support shaft 66 attached to a support frame (not shown). The display surface is configured to be hidden behind the main sign 68 or exposed from the upper side of the main sign 68. In FIG. 6, the illustration of a rotating member formed of a shape memory alloy for moving the sub sign 64 in accordance with a change in the temperature is omitted.

Next, FIG. 7 is a front view of a main part, and FIG. 8 is a schematic side view of the main part. In the information display device, a sub sign 70 on which a warning message is displayed is an upper end of a main sign 72. It has a configuration in which it can be turned upside down. Deputy signboard 7
7 has a base portion supported by the support rod 74 and rotates about the support rod 74 to obtain the position shown in FIGS.
7A and FIG. 7B, and stands up as shown in FIGS. 7 and 8B.
When the sub sign 70 is lying down, the warning message of the sub sign 70 cannot be seen from the front, and when the sub sign 70 stands up, the warning message of the sub sign 70 can be seen from the front. It has become.

One end of a thin rod member 76 is fixed to the sub sign 70 on the side opposite to the base, and the other end of the thin rod member 76 is fixed to a support frame (not shown). One end of a bias spring 78 urged in a contraction direction is fixed to an intermediate portion of the thin rod member 76.
Is fixed to the support frame. Thin bar member 76
Is made of a shape memory alloy, and stores a linear shape as shown in FIG. 8B at a predetermined temperature, for example, at a temperature of 0 ° C. or lower. Also, the thin rod member 76
At normal temperature, as shown in FIG. 8 (a), it has a shape bent in the shape of a "<" at the connection point with the bias spring 78.

The information display device having the structure shown in FIGS. 7 and 8 has a sub-signboard 70 at normal temperature as shown in FIG.
Is lying down and cannot see the warning message from the front. On the other hand, when the temperature drops to 0 ° C. or less and the road surface freezes, the thin rod member 76 formed of the shape memory alloy changes to the stored linear shape as shown in FIG. By doing so, the sub sign 70 is raised by the thin rod member 76, and the warning message of the sub sign 70 can be seen from the front. Further, when the temperature rises and exceeds 0 ° C., the thin bar member 76 returns to the original “<” shape, as shown in FIG.
Falls and the warning message disappears from the front again.

In the embodiment shown in FIGS. 1 to 6, the main sign is fixed, the sub sign is movable, and the sub sign protrudes from the main sign. However, the sub sign is fixed. However, the main signboard can be made movable so that the sub signboard is hidden behind the main signboard or exposed from the main signboard.

In the above-described embodiment, the case where this information display device is used as a traffic sign has been described. Can be used for various purposes that need to be appropriately displayed. For example,
This information display device is installed near the boiler equipment, the transformation point of the shape memory alloy is set in a high temperature range,
If the ambient temperature exceeds the specified temperature and there is a danger of burns if a part of the worker's body touches the boiler,
It can be used as a safety sign to display a warning message such as "Be careful of burns during operation of heat source".

[0033]

When the information display device according to any one of the first to fifth aspects of the present invention is used for a traffic sign, a safety sign in a factory, or the like, it is assumed that the situation is dangerous to a driver or a worker. The information can surely alert the user and prevent an accident. This information display device can be easily installed even in a place where there is no electric equipment, the cost is not so high, there is little fear of failure, and the burden of maintenance and inspection work is small.

[Brief description of the drawings]

FIG. 1 is a front view of an information display device showing one embodiment of the invention according to claim 1;

FIG. 2 shows another embodiment of the invention according to claim 1, and is a front view showing the information display device with a main signboard removed.

FIG. 3 is a front view of the information display device according to still another embodiment of the present invention, with the main signboard removed.

FIG. 4 is an external front view of an information display device showing still another embodiment of the invention according to claim 1;

FIG. 5 is a front view showing the information display device according to the third embodiment of the present invention, with the main signboard removed;

FIG. 6 is an external front view of an information display device showing another embodiment of the invention according to claim 3;

FIG. 7 is a front view of a main part of an information display device showing one embodiment of the invention according to claim 5;

8 is a schematic side view of a main part of the information display device shown in FIG.

[Explanation of symbols]

 10, 52, 68, 72 Main sign 12, 24, 36, 44, 54, 64, 70 Secondary sign 14, 26, 38, 46, 58 Support frame 16 Upper frame 18 of support frame 18 Made of shape memory alloy Coil spring 20 Side frame portion of support frame 22 Guide groove 28 of side frame portion Upper frame portion of support frame 30, 40, 50 Lower frame portion of support frame 34 Coil spring formed by bias spring 42 Shape memory alloy Formed plate member 56 Rotating rod 60, 66 Rotating support shaft 62 Rod member formed of shape memory alloy 74 Support rod 76 Thin rod member formed of shape memory alloy 78 Bias spring

Claims (5)

[Claims] An information display unit for displaying information relating to an air temperature or an ambient temperature; a support unit for supporting the information display unit in a linearly reciprocable manner; and a movable range of an information display surface of the information display unit. Provided in the
A shielding unit that constantly shields the information display surface of the information display unit, and a moving member that is connected to the information display unit and moves the information display unit so that the information display surface of the information display unit protrudes from the shielding unit. The moving member is formed of a shape memory alloy, and when an air temperature or an ambient temperature falls below a predetermined temperature or exceeds a predetermined temperature, the information display section is moved so that the information display surface is exposed from the shielding section. An information display device characterized in that: 2. A fixed information display unit for displaying information related to the temperature or the ambient temperature, and a linearly reciprocally movable unit such that an information display surface of the information display unit is located within a movable range. A shielding unit that is always provided and shields an information display surface of the information display unit; a support unit that movably supports the shielding unit; and a shield unit that is connected to the shielding unit, and the shielding unit is an information display surface of the information display unit. A moving member for moving the shielding portion so as to shield and expose, wherein the moving member is formed of a shape memory alloy, and when an air temperature or an ambient temperature falls below a predetermined temperature or exceeds a predetermined temperature, the shielding portion Wherein the information display surface of the information display unit is exposed by moving the information display device. 3. An information display unit for displaying information relating to an air temperature or an ambient temperature; a support unit rotatably supporting the information display unit about a fulcrum; and an information display surface of the information display unit. Provided within the movable range,
A shielding unit that constantly shields the information display surface of the information display unit; and a rotating member that is connected to the information display unit and that rotates the information display unit so that the information display surface of the information display unit protrudes from the shielding unit. The rotating member is formed of a shape memory alloy, and when the air temperature or the ambient temperature falls below a predetermined temperature or exceeds a predetermined temperature, the information display section is rotated, and the information display surface is An information display device characterized by being exposed from a shielding part. 4. An information display section which displays information related to the temperature or the ambient temperature and is fixed, and is rotatable about a fulcrum so that an information display surface of the information display section is located within a movable range. A shielding unit that is disposed and always shields an information display surface of the information display unit; a support unit that rotatably supports the shielding unit; and a shield unit that is connected to the shielding unit and the information of the information display unit is connected to the shielding unit. A rotating member for rotating a shielding portion so as to shield and expose the display surface, wherein the rotating member is formed of a shape memory alloy, and when an air temperature or an ambient temperature falls below a predetermined temperature or exceeds a predetermined temperature. The information display device, wherein the information display surface of the information display unit is exposed by rotating the shielding unit. 5. An information display unit for displaying information related to an air temperature or an ambient temperature, a support unit for supporting the information display unit so that the information display unit can be turned upside down, and connected to the information display unit. An erecting member for erecting, the erecting member is formed of a shape memory alloy, and the information display unit is erect when the air temperature or the atmospheric temperature falls below a predetermined temperature or exceeds a predetermined temperature. Characteristic information display device.