JP2889545B2 - Marking device for freeze display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sign display device for freezing a road surface, which warns a driver, a road manager, or the like of a road surface freezing that occurs in winter.

[0002]

2. Description of the Related Art As a conventional freeze display sign device, there is a technology disclosed in Japanese Utility Model Laid-Open Publication No. 52-142392.

[0003] That is, there is provided a device for sensing the temperature at which the road surface freezes, and when the set temperature is sensed, a sign for warning the road surface is lit and the display characters appear, and at the same time, a rotation warning light or a blinking warning light is displayed. Works.

[0004] On the other hand, a reflective marker device for clearly indicating the presence of a roadside zone by means of a retroreflective surface is known from Japanese Utility Model Laid-Open No. 58-10913.

In the case where the above-mentioned sign is turned on and the displayed characters appear and the rotation warning light or the blinking warning light is activated at the same time, an external power supply is required. If the vehicle falls down due to a collision of a vehicle or the like, a warning that the road surface is frozen cannot be displayed thereafter.

[0006] Further, in a reflective sign device that indicates the presence of a roadside zone by a retroreflective surface, the presence of the left and right shoulders can be known by white or yellow, but is limited to the display of the road width.

On the other hand, another prior art is disclosed in
There is a technique described in Japanese Patent Publication No. 12612 and Japanese Patent Publication No. 54-19760.

The former publication discloses a technology of a road freezing warning reflecting mirror which is rotatably attached to a housing and which rotates a reflecting surface provided on one surface by 90 degrees depending on temperature. However, even if the reflector maintains a vertical plane and a horizontal plane at a predetermined temperature, the road freeze warning reflector installed on the road is at the same level as the horizontal plane of the reflector depending on the vehicle height, Or, when the line of sight is located at a height position away from the horizontal plane of the reflector, the road freeze warning reflector is completely differently viewed. Therefore, even if the reflecting mirror is turned 90 degrees in the horizontal and vertical planes, if the driver's line of sight changes, the meaning of the road freeze warning reflecting mirror becomes unknown, and the displayed content is accurately transmitted. There is a risk of not being performed, and practical use is difficult.

In the latter publication, an aluminum disk having a surface subjected to a process suitable for reflecting light is rotatably supported, and the existence of left and right road shoulders is known by this type of aluminum disk. However, it is limited to the display of the road width.

[0010] The applicant of the present invention has previously described Patent No. 2,573,776.
Patent Document 1 discloses a first housing that is rotatable with respect to the housing and that exposes a surface including at least one of a specific color surface and a pattern surface when viewed from the front. A rotating display unit having a retroreflective surface, and provided integrally with the rotating display unit, and located at the rear when the first retroreflective surface is exposed to the surface when viewed from the front, When the first retroreflective surface of the rotating display unit, which is exposed when viewed from the front surface, is rotated, the first retroreflective surface is formed of one or more of a color surface and a pattern surface different from the first retroreflective surface. A freezing display marker device comprising: a second retroreflective surface exposing a surface to the surface; and a temperature responsive drive means made of a shape memory alloy for rotating and displacing the rotating display portion according to a temperature around a substantially freezing temperature. Suggested.

With this arrangement, the temperature-responsive driving means causes the rotating member to be rotationally displaced by the substantially freezing temperature. When the temperature reaches the substantially freezing temperature, the display is performed by the retroreflective surface in the housing provided on the rotating member. Can be replaced. In addition, it is possible to notify a driver or a road manager or the like of the freezing of the road surface occurring in winter without relying on an external power supply.

[0012]

SUMMARY OF THE INVENTION In the conventional freezing display marking device, the rotating display section having the first retroreflective surface and the second retroreflective surface must rotate by 180 degrees. ,
If the gear ratio is the same, it is necessary to increase the amount of displacement of the temperature responsive drive means made of a shape memory alloy. Further, in order to change the gear ratio and increase the rotation angle on the output side, it is necessary to increase the driving energy. When the displacement amount or the driving energy of the temperature responsive driving means cannot be increased, if the temperature responsive driving means is used at the limit of the displacement amount, a state in which the first retroreflective surface or the second retroreflective surface is not flush is assumed. You.

Further, in order to display characters such as "freezing attention" on the first retroreflective surface or the second retroreflective surface, or to make the display easier to see, the characters are vertically long, horizontally long or both long and 30 cm square or more. If the size is made large, the weight of the rotary display portion becomes large due to the limitation of weight reduction, the size of the mass and the size of the contact resistance cannot be ignored, and it is necessary to increase the driving torque of the temperature responsive driving means.

However, increasing the drive torque of the temperature-responsive drive means made of a shape memory alloy increases the mass of the shape memory alloy, and changes its responsiveness and hysteresis. I can't get it. In addition, if the characteristics of the temperature-responsive driving means made of a shape memory alloy are changed, or if the basic structure is changed, it is necessary to perform a practical test such as a durability test and a response speed. Will be delayed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a freezing display marker device capable of coping with a two-dimensional enlargement without increasing the displacement and the driving energy of the temperature-responsive driving means.

[0016]

According to a first aspect of the present invention, there is provided a sign display device for freezing display, wherein at least a first setting is performed when a temperature rises at a light transmitting member side of a housing having a light transmitting member disposed on a front surface thereof. A first retroreflective surface that is displayed when the temperature is exceeded, and a second retroreflective surface that is displayed when a second set temperature lower than the first set temperature is lowered when the temperature is lowered. A rotation display unit comprising at least one of a first Vref face and a cut face cut at a right angle to a length direction of the second retroreflection face, which is disposed in a substantially V-shape; A temperature-responsive drive unit having a shape memory alloy that obtains a drive force that is rotationally displaced by the temperature around the predetermined temperature, and is located at an upper part of the housing, and the rotary display unit is rotatable, and
An upper mounting member provided with an upper support for supporting the upper end of the rotation display unit, and a lower part of the housing, supporting the lower end of the rotation display unit, and supporting the lower end of the rotation display unit from the temperature responsive drive unit. A lower mounting member provided with a lower support for obtaining a rotational force.

According to a second aspect of the present invention, there is provided a sign display device for freezing,
A first surface, which is displayed when the temperature exceeds a first set temperature when the temperature rises, and a first surface when the temperature falls, the first surface is displayed at least on the light transmission member side of the housing having the light transmission member disposed on the front surface. Has a second retroreflective surface displayed when a second set temperature lower than the set temperature is lowered, and is perpendicular to the length direction of the first surface and the second retroreflective surface. Temperature-responsive having a rotating display portion comprising at least one of the cut surfaces cut in a substantially V-shape, and a shape memory alloy for obtaining a driving force to be rotationally displaced by the temperature around the predetermined temperature. A drive unit, an upper mounting member that is located at an upper portion of the housing, that allows the rotation display unit to rotate, and that has an upper support that supports the weight of the upper end of the rotation display unit; The temperature-responsive drive is located at a lower portion of the housing and supports a lower end of the rotation display unit. Is intended to and a lower mounting member which is disposed a lower support portion for obtaining a rotating force from the parts.

According to a third aspect of the present invention, the upper support portion is a bearing for reducing frictional resistance against a rotating plane.

According to a fourth aspect of the present invention, the upper support is a ball bearing.

According to a fifth aspect of the present invention, there is provided a sign display device for freezing,
A housing having at least a light-transmitting member disposed on a front surface thereof, a first retroreflective surface displayed on a light-transmitting member side of the housing when a temperature exceeds a first set temperature when the temperature rises, and a temperature drop A second retroreflective surface that is displayed when a second set temperature lower than the first set temperature is lowered, and the first retroreflective surface and the second retroreflective surface The cut surface cut at right angles to the length direction of
A rotating display unit composed of at least one member arranged in a character shape, a temperature-responsive driving unit having a shape memory alloy for obtaining a driving force for rotating and displacing around the predetermined temperature according to the temperature, and a side portion of the housing , And another side mounting member provided with a side supporting portion that allows the rotating display portion to be rotatable in the vertical direction and horizontally supports the weight thereof.

According to a sixth aspect of the present invention, there is provided a sign display device for freezing display,
A housing having at least a front surface provided with a light-transmitting member, and a first surface, which is displayed on the light-transmitting member side of the housing when the temperature exceeds a first set temperature when the temperature rises, when the temperature falls Has a second retroreflective surface displayed when a second set temperature lower than the first set temperature is lowered, and a longitudinal direction of the first surface and the second retroreflective surface. The cut surface cut at a right angle to is arranged in a substantially V-shape.
A rotating display unit comprising at least one of a plurality of the rotating members, a temperature-responsive driving unit having a shape memory alloy for obtaining a driving force for rotationally displacing the predetermined temperature as a center, and The display unit is rotatable in the vertical direction, and
And another side mounting member provided with a side support portion for horizontally supporting the weight.

The substantially V-shaped cross section of the rotating display portion of the freeze display signage device according to claim 7 is approximately 60 degrees, the lengths of both surfaces are substantially uniform, and all ends of the cross section are connected. The lines form a substantially equilateral triangle.

In one embodiment, at least one of the first surface, the first retroreflective surface, and the second retroreflective surface of the rotating display portion of the freeze display sign device according to the eighth aspect is freezing caution. Has at least one of a character, a graphic, and a character.

In one embodiment, at least one of the first surface, the first retroreflective surface, and the second retroreflective surface of the rotary display portion of the freeze display sign device according to the ninth aspect is freezing-sensitive. Is a word that calls attention to freezing in relation to one or more of the characters, figures, and characters on the adjacent display board.

According to a tenth aspect of the present invention, the rotation display unit, the temperature responsive drive unit, the upper support unit, and the lower support unit of the freeze display sign device are disposed on the back cover side of the housing. It is.

[0026]

Embodiments of the present invention will be described below. In the drawings, the same reference numerals and symbols indicate the same or corresponding components as those of the embodiments, and particularly, A, B at the end indicating that a plurality of components having the same configuration are used. , C, D and their A, B,
Those without the symbols C and D are basically common components.

FIG. 1 is a perspective view showing a retroreflection operation state of a freeze display sign device according to one embodiment of the present invention, and FIG. 2 is an attached state of the freeze display sign device according to one embodiment of the present invention. FIG. 3 is a perspective view showing an embodiment of a use state of the freeze display sign device according to one embodiment of the present invention. FIG. 4 is a front view showing one embodiment of a use state of the freeze display sign device according to one embodiment of the present invention.
(A) is when the second set temperature lower than the first set temperature is decreased due to temperature decrease, and (b) is when the first set temperature is exceeded due to temperature rise. FIG. 5 is a rear view showing a housing of the freeze display sign device according to one embodiment of the present invention, and FIG. 6 is a view showing a housing of the freeze display sign device according to one embodiment of the present invention. It is sectional drawing by cutting line AA.

In FIG. 1 to FIG. 4, for example, the white pillar 2 has a white or yellow retroreflective surface to indicate the existence of the roadside zone, and has a roadside zone marking function and a freeze marking function according to the present embodiment. The display marking device 1 is attached by known attachment means 3. The mounting means 3 of the present embodiment inserts the head of a commercially available bolt into a grooved rail member 5 mounted on a housing 4 formed as an aluminum mold, restrains the rotation, Inserted into the inserted bolt, screwed with nut 7,
The column 2 is sandwiched between the rail member 5 and the saddle 6. Of course, the mounting means 3 in the case of carrying out the present invention can be integrally mounted directly on the column 2 by bolts and nuts. The housing 4 is formed of an opaque synthetic resin material, a metal plate, a mold, or the like in a box shape. In the present embodiment, the housing 4 is formed as an aluminum mold. On its front surface, a transparent plate 4a made of a transparent acrylic plate or a transparent glass plate is provided as a light transmitting member. The transparent plate 4a is provided on the front surface, but may be any one provided with at least a window functioning as a roadside sign and a freezing sign, or one provided with the front half of the housing 4 formed of a transparent member. Of course, the housing 4 may be formed entirely of a transparent member.

As shown in FIGS. 1 and 2, FIG. 5, and FIG. 6, the housing 4 of the present embodiment comprises a transparent plate 4a and a back cover 9 attached to the back of a case body 8 described later. ing. The roadside sign surface 11A provided on the rotation display portions 10A, 10B, 10C, and 10D (hereinafter, the common "rotation display portion" is simply referred to as "10") disposed inside the housing 4. , 11B, 11C, 11
D (hereinafter, the common “roadside sign surface” is simply described as “11”) and the frozen sign surfaces 12A, 12B,
As shown in FIG. 4, 12C and 12D (hereinafter, the common “frozen marker surface” is simply described as “12”)
The surface is visible from the transparent plate 4a. Of course,
The case body 8 and the transparent plate 4a, and the case body 8 and the back cover 9 are filled or interposed with a sealing agent or a sealing material (not shown) or an adhesive so as to secure necessary sealing properties. In addition, 4b shown in FIG. 5 is a screw hole for fixing the back cover 9 to the housing 4, and 9a and 9b relatively show the positions of the screw holes shown in the back cover 9.

FIGS. 3 and 4 show one use state of the freezing sign device 1 according to one embodiment of the present invention. "Freezing" is displayed when the temperature exceeds a first set temperature and "freeze" is displayed when a second set temperature lower than the first set temperature is lowered due to a decrease in temperature. 1 (1D) displays "line" when the temperature exceeds the first set temperature due to temperature rise, and "connection" when the second set temperature lower than the first set temperature is decreased due to temperature decrease. In addition, the display plate 100 located at the lower part of the freezing display marker device 1 (1D) shows the word "Caution", as shown in the front view (a) of FIG. When the second set temperature, which is lower than the first set temperature, is lowered due to the temperature drop, a black character "freezing attention" is displayed on a red base, and the temperature becomes higher than a predetermined temperature as shown in (b). Is displayed, a black or blue character "running attention" is displayed on a yellow background. Of course, for the same color such as a yellow base, use "black" for "running caution" and "freezing caution".
May be displayed.

In practicing the present invention, the sign display device 1 for freezing display does not have any characters, and the roadside sign and the freezing sign are displayed in colors such as yellow and red, white and red, blue and red. You can also. Further, in the embodiment of FIG. 4, the sign display device 1 (1U) for freezing display and the sign device 1 (1D) for freezing display are separated. The sign device 1 may be vertically or horizontally long, and one or two or more characters, for example, "running" or "freezing", "running caution" or "freezing caution" may be expressed in the same housing 4. . In particular, when characters are put on the surface on which the roadside sign and the frozen sign are formed, the recurring reflection surface is, for example, one of white, yellow, red, and blue, and has another color, for example, a complementary color contrast. The roadside sign function and the freezing sign function can be represented only by characters in color.

It should be noted that, throughout the embodiments of the present invention, the frozen display marker device 1 can be any of a frozen display having no character, a frozen marker with a character, and a frozen marker with a character. , It ’s not a different concept,
The description is based on the assumption that the concepts are common.

FIG. 7 is a schematic exploded view of parts of the freeze display sign device according to one embodiment of the present invention, and FIG. 8 is a rotation display portion of the freeze display sign device according to one embodiment of the present invention. FIG. 9 is an enlarged exploded view of a main part showing an attached state, FIG. 9 is an explanatory view of a rotation operation of a rotation display unit of the freeze display sign device according to an embodiment of the present invention, and FIG. Sectional view (a) showing the mounting state of the upper mounting member of the freeze display marker device of the embodiment, and cross-sectional view (b) showing the mounting state of the lower mounting member.
It is. FIG. 11 is a plan view (a) of the lower mounting member when the rotation display unit of the freeze display marker device according to the embodiment of the present invention is rotated right, and the rotation display unit is rotated left. It is a top view (b) of the lower mounting member at the time of doing, and a front view (c) of only the lower mounting member. FIG. 12 is a cross-sectional view showing a mounting state of a moving member and a lower mounting member of the freeze display sign device according to one embodiment of the present invention, and FIG. 13 is a freeze display sign device according to one embodiment of the present invention. FIGS. 4A and 4B are explanatory diagrams showing a relationship between the moving member and the pinion, wherein FIG. 4A shows a state in which the moving member has moved rightward, and FIG. 4B shows a state in which the moving member has moved leftward.

In FIG. 7, the upper mounting member 60 provided on the upper part of the housing 4 is fixed to the screw hole 9a of the back cover 9 by a plurality of screw holes 60b screwed by the screws 60a. . Further, the lower mounting member 20 provided at the lower portion of the housing 4 is fixed to the screw hole 9b of the back cover 9 by a plurality of screw holes 20b screwed by screws 20a.

Between the upper mounting member 60 and the lower mounting member 20, there are four rotating display portions 1 in this embodiment.
0A, 10B, 10C, and 10D are rotatably supported.

Next, the upper mounting member 60 and the lower mounting member 2
The structure of 0 and the rotation display unit 10 will be described with reference to FIGS.

The rotation display unit 10 has an upper end member 13 formed on the upper side and a lower end member 14 formed on the lower side. The upper end shaft 13a and the lower end member 14 of the upper end member 13 are provided.
Is rotatable around a lower end shaft 14a of the. In the rotation display unit 10 in the present embodiment, a V-shaped plate 15 bent in a V-shape is joined between the upper end member 13 and the lower end member 14, and the outer surface of the V-shaped plate 15, that is, A synthetic resin sheet mixed with a retroreflective material is adhered to the outer surface,
One of them is the roadside sign surface 11A, 11B, 11C,
11D, and the other surface is a frozen sign surface 12A, 12B, 12C, 12D for displaying the frozen state of the road surface.

When the temperature exceeds a first set temperature due to a rise in temperature, the rotation display sections 10A, 10B, 10C, and 10D disposed inside the housing 4 as shown in FIG. The sign surfaces 11A, 11B, 11C, 11D are on the transparent plate 4a side of the housing 4. When the second set temperature, which is lower than the first set temperature, is lowered due to the temperature drop, the whole is rotated by approximately 120 degrees from FIG.
As shown in (b), the frozen sign surfaces 12A, 12B, 12C,
12D is the transparent plate 4a side of the housing 4. That is, as shown in FIG. 9A, the rotation display units 10A, 10B, 1
0C, 10D roadside belt sign surfaces 11A, 11B, 11C,
When 11D becomes flush, roadside belt sign surfaces 11A, 11
The entire surface of B, 11C, and 11D reflects the reflected light in the direction of the incident light, thereby clearly indicating that the road surface temperature is not frozen. Also, as shown in FIG. 9B, when the rotation display units 10A, 10B, 10C, and 10D are rotated by approximately 120 degrees and the different surfaces become substantially flat, the frozen sign surface 12
A, 12B, 12C, and 12D are flush with each other, and the reflected light is reflected in the direction of the incident light on the entire surface of the frozen sign surfaces 12A, 12B, 12C, and 12D, whereby the state of the road surface is frozen or frozen. Specify that it is in the enabled state.

It should be noted that the rotation display section 10A of the present embodiment
Although 10B, 10C, and 10D consist of four, the number is not restricted when implementing the present invention. However, when it is configured with about 2 to 5 sheets as in the present embodiment, the contact resistance of each rotating display unit 10 is relatively small and the mechanical strength can be increased.

The upper end of the rotation display unit 10 of the present embodiment
As shown in FIG. 10A, it is attached to the upper attachment member 60.

The upper mounting member 60 has four rotating display portions 10
A through holes 61 for mounting A, 10B, 10C, and 10D are provided. The upper end shaft 13a of the upper end member 13 formed above the rotation display unit 10 is inserted into the through hole 61, and is positioned between the through hole 61 and the upper end shaft 13a via the bearing metal 62. . The upper end shaft 13a located inside the bearing metal 62 includes a washer 64 and the bearing metal 6.
2 and a sliding ring 63 forming a low contact resistance surface thrust bearing, for example, a thrust ball bearing and a dry bearing.
, And screwed with a bolt 65. That is, the upper end shaft 13
a is a bolt 6 via a washer 64 and a sliding ring 63.
5 is firmly tightened. Therefore, the rotation display unit 10 rotates integrally with the slide ring 63, and the flange portion on the upper surface of the bearing metal 62 and the slide ring 63 rotate with low frictional resistance.

The lower end of the rotation display unit 10 is
As shown in (b), it is attached to the lower attachment member 20.

The lower mounting member 20 has four rotating display portions 1
Column-shaped projections 21A, 21B, 21C, 21D (hereinafter, the common “projection” is simply referred to as “21”) are formed for mounting 0A, 10B, 10C, 10D. Sleeves 23 are inserted into the protrusions 21A, 21B, 21C, and 21D, respectively, and the lower end member 1 of the rotation display unit 10 is inserted through the sleeve 23 having a low frictional resistance functioning as a bearing.
4 is fitted inside the lower end of the lower end shaft 14a. A pinion 14 is provided outside the lower end of the lower end shaft 14a of the lower end member 14.
b (14bA, 14bB, 14bC, 14bD) are formed. The sleeve 23 is located inside the pinion 14b, is fixed to the protrusion 21 and restrains horizontal movement by fitting between the sleeve 23 and the lower end shaft 14a. Axis 14
a is rotatable. At this time, a slight gap is provided between the lower end of the lower end shaft 14a of the lower end member 14 and the upper surface of the lower mounting member 20 so that they do not contact each other. That is, the rotation display unit 10 is cantilevered only on the upper mounting member 60 side.

On the upper surface of the lower mounting member 20, a rotation display section 1 is provided.
0 right rotation stopper 22R (22R
A, 22RB, 22RC, 22RD) and a left rotation stopper 22L (22LA, 22LB, 2) for restraining left rotation.
2LC, 22LD), and a contact protrusion 14c (14cA, 14cB, 14c) protruding below the lower end member 14.
C, 14cD) is a right rotation stopper 22R (22R
A, 22RB, 22RC, 22RD) and the right rotation is restrained. At this time, the frozen sign surfaces 12A, 12B, 12C,
12D is flush with the transparent plate 4a side of the housing 4. In addition, the contact protrusion 14 d (1) protruding below the lower end member 14.
4dB, 14dB, 14dC, and 14dD) are left rotation stoppers 22L (22LA, 22LB, 22LC, 22L).
LD) and the left turn is restrained, and the roadside sign surface 11A, 1
1B, 11C and 11D are flush with the transparent plate 4a side of the housing 4.

Here, the V-shaped plate 15 bent in a V-shape of the rotary display unit 10 and the roadside sign surface 11 and the frozen sign surface 12 joined to the V-shaped plate 15 are mounted on the upper side. Member 60
The rotation of the rotation indicator 10 is determined by the distance between the lower mounting member 20 and the lower mounting member 20, and the flange portion on the upper surface of the bearing metal 62 and the sliding ring 63 rotate with low frictional resistance. Although the torque for rotating the display unit 10 is determined, the weight of the V-shaped plate 15 and the roadside sign surface 11 and the freezing sign surface 12 between the upper attachment member 60 and the lower attachment member 20 has an influence on the torque. Is small, the rotation display unit 10
The length of the V-shaped plate member 15, the roadside sign surface 11 and the freezing sign surface 12 between the upper mounting member 60 and the lower mounting member 20 can be increased.

Further, the moving member 40 is mounted on the lower mounting member 20, as shown in FIG.

Two guide projections 24 are formed on the upper surface of the lower mounting member 20, and a slide washer 25 having a small contact resistance on the upper surface is fitted therein. The bush 26 having a small resistance is fitted, and the guide holes 42a and 42c formed of the long holes of the moving member 40 are fitted into the bush 26, thereby facilitating the linear movement of the moving member 40. In order to prevent the bush 26 from being detached from each of the guide projections 24, the bush 26 is screwed to each of the guide projections 24 by each of the mounting screws 27, and the detachment and the movement parallel to the projecting direction of the guide projection 24 are restrained.

The moving holes 42A, 42B, 42C, 42D are formed on one side in the length direction of the moving member 40, that is, oval shapes having a shape slightly larger than the guide holes 42a, 42c.
The pinion 14b formed at the lower end of the lower end shaft 14a of the lower end member 14 (14bA, 14bB, 14b)
C, 14bD) and the racks 41A, 41B, 41 that mesh with each other.
C and 41D are formed. Therefore, the moving member 4
The linear movement of the rack 41 in the length direction
A, 41B, 41C, 41D move left and right, and the rack 4
Pinion 14b meshing with 1A, 41B, 41C, 41D
A, 14bB, 14bC, 14bD rotate, and the rotation display units 10A, 10B, 10C, 10D rotate.

At right angles to the length direction of the moving member 40,
Further, hook portions 43, 44, 45, 46 are formed on both sides, and the expansion and contraction characteristics due to temperature are extremely high between the hook portions 43, 44 and the pins 35a, 36a arranged on the upper surface of the lower mounting member 20. The compression springs 35, 36 having a small amount (extremely small in linear expansion) are provided, and contracted so as to narrow the space therebetween. The hooks 45, 46 have pins 30a, 31a disposed on the upper surface of the lower mounting member 20, respectively.
, A compression spring 30 made of a shape memory alloy,
31 is arranged and contracted so as to narrow the space between them,
The influence of the contraction force of the compression springs 30, 31 made of a shape memory alloy is larger than the elastic force of the compression springs 35, 36. Normally, the second set temperature of the low temperature set when the temperature of the compression springs 35 and 36 made of this shape memory alloy is lowered is set to a value near the freezing point of the compression springs 35 and 36 made of this shape memory alloy. The temperature is set within the range of 0 to 3 ° C., although it is slightly different depending on the region. The first set temperature set when the temperature rises depends on the second set temperature of the compression springs 35 and 36, but depends on the temperature that has risen within the range of 2 to 5 ° C. determined by hysteresis. Is set.

Then, as shown in FIG. 13 (a), when the temperature of the moving member 40 decreases from a high temperature to a predetermined second set temperature, for example, 1 to 2 ° C. or lower, the moving member 40 is moved to the left. The elastic force of the compression springs 35, 36 made of a shape memory alloy is smaller than the elastic force of the compression springs 30, 31 that urges each turn. When the temperature rises above the second temperature, each turn portion is stored at a predetermined first set temperature. In this embodiment, for example, when the temperature rises to 4 to 5 ° C., the compression density is stored so as to be dense. Moving member 4
0 is urged to the left, and the frozen sign surfaces 12A, 12B, 12
C and 12D are flush with the transparent plate 4a side of the housing 4.

As shown in FIG. 13B, a predetermined first set temperature, for example, 1 to 2 of a predetermined second set temperature.
When the temperature reaches 2 ° C. and the temperature exceeds the hysteresis, the compression springs 30 and 31 for urging the moving member 40 to the left.
The elastic force of the compression springs 35 and 36 made of a shape memory alloy becomes greater than the elastic force of the shape memory alloy because the compression density of each turn portion is increased, and thus the roadside sign surfaces 11A, 11B,
11C and 11D are flush with the transparent plate 4a side of the housing 4.

Therefore, when the temperature of the compression springs 35 and 36 made of the shape memory alloy is substantially equal to or lower than the freezing point temperature, the elastic force for moving the moving member 40 is reduced by the compression spring 30 for urging the moving member 40 to move in the opposite direction. , 31 are weaker. However, when the temperature exceeds a high first set temperature exceeding the substantially freezing point temperature, the elastic force for moving the moving member 40 by the compression springs 35 and 36 made of a shape memory alloy causes the compression force for urging the moving member 40 to move. It becomes stronger than the elastic force of the springs 30 and 31. Therefore, when the temperature is substantially below the freezing point, it rotates until the left rotation is restricted, and the frozen sign surfaces 12A, 12B, 12C, and 12D are flush with the transparent plate 4a side of the housing 4. When the temperature no longer falls below the freezing point temperature, the vehicle rotates until the right rotation is restricted, and the roadside sign surfaces 11A, 11B, 11C, and 11D are flush with the transparent plate 4a side of the housing 4.

The sign display device for freezing display according to the present embodiment configured as described above operates as follows.

The compression spring 3 made of a shape memory alloy has an outside air temperature due to heat conduction, radiant heat, etc. of the housing 4.
The temperature will be 5,36. For example, when the outside air temperature reaches the first set temperature of 4 to 5 ° C., which is higher than the freezing point temperature, the compression springs 35 and 36 made of a shape memory alloy contract more strongly than the elastic force of the compression springs 30 and 31. The moving member 40 is moved rightward in FIG. 13 by the elastic force of the compression springs 30 and 31. Thereby, the rotation display unit 1
9 indicates that the state of FIG. 9B is rotated by approximately 120 degrees to the state of FIG.
Side surface. At this time, the light of the headlight of the automobile or the like is reflected by the roadside sign surface 11 in the direction of the light source of the headlight. Thus, the driver can confirm the presence of the roadside sign surface 11. As a result, the driver can travel while confirming the presence of the road edge by the presence of the roadside sign surface 11. Also, when the outside temperature falls below the freezing point,
In the present embodiment, since the density of each turn of the compression springs 35 and 36 made of a shape memory alloy whose shape is stored at a second set temperature of 1 to 2 ° C. becomes coarse,
At the following temperatures, the elastic force in the compression direction decreases. Therefore, the compression springs 35, 36 made of shape memory alloy are smaller than the elastic force of the compression springs 30, 31 in the compression direction.
The compression springs 35 and 36 made of a shape memory alloy have a smaller elastic force in the compression direction.
The moving member 40 becomes weaker than the elastic force of the compression springs 0 and 31 and expands.
To the left. As a result, the rotation display unit 10 changes the state of FIG. 9A to the state of FIG.
And the frozen sign surface 12 is turned to the transparent plate 4a of the housing 4.
Side surface. At this time, the light of the headlight of the automobile or the like is reflected by the frozen sign surface 12 in the direction of the light source of the headlight. Thereby, the driver can confirm the presence of the frozen sign surface 12. As a result, the driver confirms the freezing state of the road and the presence of the road edge by the presence of the freeze sign surface 12,
You can run. In particular, the driver can confirm the frozen state of the road surface by recognizing the color of the retroreflected light on the frozen sign surface 12, the shape of the reflective surface, and the characters.

In the present embodiment, when the temperature becomes lower than the freezing temperature of the road surface, the frozen sign surface 12 which is the retroreflective surface of the rotating display unit 10 becomes substantially perpendicular to the road surface, The driver is made to recognize the retroreflection of the surface 12, and when the road surface becomes higher than the freezing temperature, the rotation display unit 1
The roadside sign surface 11, which is a retroreflective surface of 0, is rotated by approximately 120 degrees so that the driver can recognize the retroreflection. However, when the present invention is implemented, the compression spring 35 made of a shape memory alloy is used. 36 and compression springs 30, 31
The retroreflective display of the roadside sign surface 11 and the frozen sign surface 12 can also be reversed by reversing the mounting of.

Also, using the difference in retroreflective display between the roadside sign surface 11 and the frozen sign surface 12 of this type, the difference in the retroreflective surface is represented by, for example, differences in colors, characters, illustrations, and the like. You can also. For example, as shown in the reference example of the character display in FIG. 4, the characters “freezing”, “slip”, and “freezing road” are displayed. It can also be configured to be exposed. That is, when implementing the present invention, the retroreflective display of the roadside sign surface 11 and the frozen sign surface 12 is not limited to simply coloring the retroreflective surface, and characters may be formed on the surface. Alternatively, the shape of the retroreflective surface may be a figure indicating freezing.

Further, in the present embodiment, the rotation display unit 10
Is mounted on the back cover 9 side of the housing 4 via the lower mounting member 20 and the upper mounting member 60, so that the workability of the mounting is good. However, when implementing the present invention, it is also possible to assemble the case body 8 constituting the housing 4. In particular, the rotation display unit 10 includes a temperature-responsive drive unit,
Since the upper mounting member 60 and the lower mounting member 20 are mounted on the side of the flat back lid 9 constituting the housing 4, the workability of mounting is good, and the characteristics after mounting are good. Confirmation can be easily performed.

Although the temperature responsive driving means in each of the above embodiments does not detect a temperature of 0 ° C. or less, the freeze display sign device installed about 0.8 to 1 m above the road surface has the temperature. A good freezing temperature detection effect was obtained by setting the temperature slightly higher than the freezing temperature of the ground surface in relation to the temperature difference between the detection location and the ground surface. However, depending on the traffic volume, the area such as mountainous areas, the installation environment such as the type of road surface, the time lag,
The temperature can be set to 0 ° C., or can be set to 0 ° C. or less. In addition, a shape memory alloy having a hysteresis temperature of about 3 to 4 ° C., that is, a shape memory alloy which recovers at 4 to 5 ° C., was used. However, since the road surface temperature does not rise immediately and there is a time lag, the time lag is corrected by the hysteresis temperature. For example, it is desirable to use the hysteresis temperature in correspondence with the temperature rise between the road surface temperature that freezes at night and the freeze is released and the outside air temperature in the morning. And the housing 8
The arrangement of the temperature responsive driving means in the above may be any position, and preferably, the lower part, the side part, the back part, and the upper part can be detected as a place where the outside air temperature can be detected with a small time lag.

In implementing the present invention, the retroreflective surface can be formed as a small sphere, a prism surface, or the like, and the reflected light can be colored by coloring the reflective surface and making the transparent material a colored transmissive member. it can. Further, the retroreflection of the above-described embodiment is based on the premise that the incident angle and the reflection angle are parallel like a transparent sphere, but when implementing the present invention, it does not mean retroreflection in a narrow sense. It is self-evident that the incident angle and the reflection angle can be replaced by a mirror-like surface, and it is not necessary to strictly make the incident angle and the reflection angle parallel. Most include the case where the light is reflected as reflected light.

By the way, the rotation display unit 1 of the above embodiment
0 indicates a roadside sign surface 11 that is displayed when the temperature exceeds a first set temperature when the temperature rises, and lowers a second set temperature that is lower than the first set temperature when the temperature decreases. Although it consisted of the frozen sign surface 12 displayed when it was done, it is also possible to arrange it reversely as described above, since it is determined by the setting of the predetermined second set temperature and its hysteresis temperature, In the case of carrying out the present invention, the roadside zone sign surface 11 which is displayed at the predetermined first set temperature or more of the above embodiment is displayed when the temperature is lower than the first retroreflective surface or the predetermined second set temperature. The frozen sign surface 12 to be used can be a second retroreflective surface.

In the above-described embodiment, the compression springs 35 and 36 made of a shape memory alloy for obtaining a driving force for rotationally displacing according to the temperature around a predetermined second set temperature and the pinion 14b of the rotational display unit 10. A temperature-responsive drive unit including a moving member 40 having a rack 41 meshed with the rack 41 of the moving member 40 performs expansion and contraction of the compression springs 35 and 36 upon rotation of the pinion 14b of the rotation display unit 10. However, the temperature responsive drive unit in the case of carrying out the present invention may be a shape memory alloy that obtains a driving force that is rotationally displaced by a temperature around a predetermined second set temperature,
A predetermined torque may be obtained directly from a spirally or spirally wound shape or a leaf spring shape memory alloy. Both are selected according to the temperature characteristics and the response, but when a predetermined torque is obtained from a spirally or spirally wound shape memory alloy, the number of parts may be small. Of course, the shape memory alloy may be used as a heat responsive means such as a shape memory plastic or a bimetal. Also, the compression springs 30 and 31 are omitted,
Only the compression springs 35 and 36 made of a shape memory alloy may be used. However, as in the above embodiment,
If a shape memory alloy is used, the display content can be rapidly switched near the freezing temperature of the road. If only the compression springs 35 and 36 made of a shape memory alloy are used to perform a snap operation, a steep operation is possible.

Then, the upper mounting member 6 of the above embodiment
0, it is located at the top of the housing 4 and
Is rotatable, and its weight is provided with an upper support shaft composed of an upper end shaft 13a for supporting the upper end of the rotation display unit 10, a bearing metal 62, and a slide ring 63.
The sliding ring 63 may be a ball bearing in which balls roll on both sides. That is, the upper support portion may be any as long as the upper mounting member 60 withstands the load of the rotation display portion 10 by surface contact and rotatably supports.

Further, the lower mounting member 20 of the above embodiment
In this example, a lower supporting portion, which is located at a lower portion of the housing 4, supports a lower end of the rotation display unit 10, and obtains a rotational force from a temperature responsive driving unit, and includes a lower end shaft 14 a, a protrusion 21, and a sleeve 23. However, when practicing the present invention, a structure is provided in which the lower end of the rotation display unit 10 is restrained from moving at right angles to its length direction, and a rotational force is obtained from the temperature responsive drive unit. It should just be.

In the above embodiment, the rotation display unit 10
Although the description has been given of the case of the book, here, the four rotation display units 10 are provided on the lower mounting member 20 by two compression springs 30, 31 and two compression springs 35, 36 made of a shape memory alloy. Is rotated. That is, the two rotation display portions 10 are rotated by a pair of the compression spring 30 and the compression spring 35 made of a shape memory alloy, the back cover 9 is made to be horizontally long, and the upper mounting member 60 is formed.
By simply setting the length of the lower mounting member 20 and the length of the moving member 40 to required lengths, the compression spring 3
0, 31 and a compression spring 35 made of a shape memory alloy,
The size can be increased simply by increasing the number, that is, the logarithm, without changing the types of the 36, so that the temperature characteristics do not change due to the increase in size. Also at this time, the rotation display unit 10 includes the temperature responsive drive unit, the upper mounting member 60,
Since the lower mounting member 20 is mounted on the side of the flat back cover 9 constituting the housing 4, the workability of the mounting is good, the characteristics after the mounting are confirmed, and the compression spring is mounted. Compression spring 3 made of shape memory alloy with 30, 31
Fine adjustment of the elastic strength and the like of 5, 36 and the like can be easily performed. In particular, when characters and the like are displayed in a large size, the entire rotation display unit 10 operates in conjunction with each other to improve the overall appearance, and the roadside sign surface 11 and the freeze sign surface 12 are simultaneously switched. Therefore, the appearance during the operation is good. Of course, by using a plurality of freeze display sign devices of a predetermined length, it is possible to switch and display the roadside sign surface 11 and the freeze sign surface 12 for each single character or character group.

As described above, even if the vertical length of the rotation display unit 10 is arbitrarily set, the change in the load does not directly change the rotational frictional resistance. The length in the direction can also be set arbitrarily, and as a result, a two-dimensional plane can be enlarged. Of course, by arranging necessary rows such as two rows or three rows,
A two-dimensional plane can be enlarged.

When expressing the freezing caution by characters, characters, or red display, the movable member 40 is divided into pairs of the compression spring 30 and the compression spring 35 made of a shape memory alloy, and is made of an adjacent shape memory alloy. By changing the temperature characteristic or hysteresis characteristic of the compression spring 35, it is possible to sequentially switch the roadside sign surface 11 and the frozen sign surface 12 in a predetermined direction. That is, it is possible to specify the directionality in which the switching is performed sequentially. Needless to say, even when the freeze display sign device is divided into characters, the road side band sign surface 11 and the freeze sign surface are sequentially changed in a predetermined direction by changing the temperature characteristic or the hysteresis characteristic of the compression spring 35 made of a shape memory alloy. 1
2 can be switched.

As described above, when the present invention is organized, the freeze display sign device of the above-described embodiment has a light-transmitting member side of the housing 4 having the light-transmitting member made of the transparent plate 4a disposed at least on the front surface. A first retroreflective surface composed of a roadside sign surface 11 displayed when the temperature exceeds a first set temperature when the temperature rises, and a second retroreflective surface having a temperature lower than the first set temperature when the temperature falls. Has a second retroreflective surface consisting of a frozen sign surface 12 displayed when the set temperature is lowered, and cuts at right angles to the length direction of the first retroreflective surface and the second retroreflective surface. A rotating display portion 10 having at least one cut surface arranged in a substantially V-shape, and a compression spring 35 made of a shape memory alloy that obtains a driving force for rotating and displacing around the predetermined temperature according to the temperature. , 36 and the pinion 14b of the rotation display unit 10 A temperature responsive drive unit comprising a moving member 40 having a rack 41; and an upper end which is located at an upper portion of the housing 4 and which makes the rotation display unit 10 rotatable and supports the upper end of the rotation display unit 10. An upper mounting member 60 provided with an upper supporting portion including a shaft 13a, a bearing metal 62, and a sliding ring 63; and a lower portion of the housing 4 for supporting a lower end of the rotating display portion 10; Lower end shaft 14a for obtaining rotational force, protrusion 21, sleeve 2
And a lower mounting member 20 provided with a lower support portion 3.

Therefore, the rotation display section 10 may be disposed between the upper mounting member 60 and the lower mounting member 20.
By increasing the number of the rotation display units 10 arranged in the lateral direction, the first retroreflective surface including the roadside sign surface 11 having an arbitrary length and the second retroreflective surface including the frozen sign surface 12 are formed. Can be formed. Further, since the upper end of the rotation display unit 10 is supported by the upper mounting member 60, the weight of the rotation display unit 10 can be increased even if the length of the rotation display unit 10 is increased. Since the contact frictional resistance of the upper support composed of the upper end shaft 13a, the bearing metal 62 and the slide ring 63 for supporting the upper end of the rotary shaft 10 can be rotated without being greatly affected by the length, the rotary display 10 Can be lengthened. Therefore, it is possible to cope with the two-dimensional enlargement without increasing the displacement amount and the driving energy of the temperature-responsive driving means.

In this type of embodiment, the second set temperature is, for example, a substantially freezing temperature, and the rotation display unit 10 is rotated about the substantially freezing temperature. The driver can recognize the retroreflective surface of the portion 10 as retroreflected light. Therefore, the driver can determine whether or not the road surface is frozen by the retroreflective surface. Although the housing 4 that can be attached to the column 2 in the above-described embodiment has the rotary display unit 10 in a sealed state, the present invention does not necessarily assume the sealed state, and In addition, depending on the expression form, it is not necessary to keep the rotation display unit 10 in a sealed state. But,
By using the housing 4 in which the rotation display unit 10 is in a sealed state, the reliability against dust can be increased, and the size of the entire apparatus can be reduced.

The rotation display unit 10 rotatably attached to the housing 4 of the above embodiment is configured to rotate 120 degrees. However, in the case of implementing the present invention, the rotation display unit 10 is used. The rotation of 10 is not limited to the rotation of 120 degrees. For example, when the rotation display unit 10 is attached to the housing 4 so as to be freely rotatable by 120 degrees, the rotation display unit 10 becomes a substantially triangular prism. Interference does not occur, and the rotation angle is 1
By setting the angle to 20 degrees, the variation of the shape memory alloy can be reduced, and if a large variation can be obtained, the reliability can be increased accordingly.

As described above, as the rotation display section 10 of the above-described embodiment, the roadside sign surface 11 displayed at a temperature equal to or higher than the predetermined first set temperature of the above-described embodiment is the first retroreflective surface. , The frozen sign surface 12 displayed when the temperature falls below a predetermined second set temperature is a second retroreflective surface.
When implementing the present invention, when a large display surface is used,
As long as the second retroreflective surface as the frozen sign surface 12 can be maintained, the roadside sign surface 11 displayed at or above a predetermined first set temperature can be used to display road conditions other than frozen display, geographical information, local information, and commerce. By describing various kinds of information such as information, it is possible to clearly distinguish the frozen display from the display at other times.

That is, the freezing display marker device of the above-described embodiment is configured such that the first light-transmitting member of the housing 4 having the light-transmitting member made of the transparent plate 4a disposed at least on the front surface thereof when the temperature rises. The first surface is composed of information such as road conditions, geographical guidance, local information, commercial information, etc., other than the frozen display displayed when the temperature exceeds the set temperature. When the temperature decreases, the temperature is lower than the first set temperature. A second retroreflective surface consisting of a frozen sign surface 12 displayed when the second set temperature is lowered;
And a rotating display unit 10 comprising at least one of a surface and a cut surface cut at a right angle to a length direction of the second retroreflective surface in a substantially V-shape. A temperature responsive drive unit including a compression member 35, 36 made of a shape memory alloy that obtains a driving force that is rotated and displaced by temperature at the center, and a moving member 40 having a rack 41 engaged with the pinion 14b of the rotation display unit 10, and a housing; And an upper support 13 comprising a top end shaft 13a, a bearing metal 62, and a slide ring 63 for supporting the upper end of the rotary display unit 10 by weight. And a lower end shaft 14a, a protrusion 21, and a sleeve 23, which are located at the lower part of the housing 4 and support the lower end of the rotation display unit 10, and obtain rotational force from the temperature responsive drive unit. Arranged lower support And those comprising a lower mounting member 20.

Therefore, the rotation display section 10 may be disposed between the upper mounting member 60 and the lower mounting member 20.
By increasing the number of rotation display units 10 arranged in the horizontal direction, road conditions other than frozen display of arbitrary length, geographical guidance,
A first surface composed of information such as local information and commercial information and a second retroreflective surface composed of the frozen sign surface 12 can be formed. Further, since the upper end of the rotation display unit 10 is supported by the upper mounting member 60, the weight of the rotation display unit 10 can be increased even if the length of the rotation display unit 10 is increased. Upper shaft 13a supporting the upper end of bearing 10 and bearing metal 62
Further, since the contact frictional resistance of the upper support portion including the sliding ring 63 can be rotated without being greatly affected by the length, the length direction of the rotation display portion 10 can be lengthened. Therefore, it is possible to cope with the two-dimensional enlargement without increasing the displacement amount and the driving energy of the temperature-responsive driving means. On the first side, various information such as road conditions, geographical guidance, local information, commercial information, etc., other than the frozen display are described. Can be made an effective display.

The freeze display sign device of the above embodiment is
Since the upper support portion of the upper mounting member 60 is a plate-shaped bearing having a surface treated with a fluororesin for reducing frictional resistance against the rotating plane, the contact resistance can be reduced with a simple structure, and the rotation The possibility of swinging in the direction perpendicular to the length of the display unit 10 is reduced, and stable rotation becomes possible.

The freezing display marker device of the above embodiment is
Since the upper support of the upper mounting member 60 is a ball bearing, its frictional resistance can be reduced with a simple structure,
In addition, the possibility of swinging in the direction perpendicular to the length of the rotation display unit is reduced, and stable rotation is enabled.

The freezing display marker device of the above embodiment is
Although the upper support portion of the upper mounting member 60 is vertically lowered from the rotation display unit 10, even if the rotation display unit 10 is supported in the horizontal direction, the load burden on the bearings on both sides is reduced by half.
And stable operation can be expected.

That is, in the sign display device for freezing display according to this embodiment, when the temperature rises, the housing 4 having at least the front surface provided with the light transmitting member made of the transparent plate 4a is disposed on the light transmitting member side. A first retroreflective surface comprising a roadside sign surface 11 which is displayed when the temperature exceeds the first set temperature, when a second set temperature lower than the first set temperature is lowered during a temperature decrease It has a second retroreflective surface consisting of a frozen sign surface 12 to be displayed, and a cut surface cut at a right angle to the length direction of the first retroreflective surface and the second retroreflective surface is substantially V
One or more rotating display portions 10 arranged in a character shape, and compression springs 35, 36 made of a shape memory alloy that obtains a driving force for rotationally displacing around the predetermined temperature according to the temperature.
And the rack 4 that meshes with the pinion 14b of the rotation display unit 10.
1 and a bearing which is located on the side of the housing 4 and which allows the rotary display unit 10 to rotate and supports a half of its weight. Side mounting member and located on the other side of the housing 4,
It can be configured with another side mounting member that supports the other end of the rotation display unit 10 and has a bearing that obtains rotational force from the temperature responsive drive unit.

Therefore, in this type of embodiment, since the rotation display section 10 may be disposed between the side mounting members, the number of the rotation display sections 10 disposed in the vertical direction can be increased. A first roadside sign surface 11 having an arbitrary length;
And the second retroreflective surface can be formed. In addition, since the weight of the rotation display unit 10 is supported by both ends of the rotation display unit 10, the load is divided by two, and even if the length of the rotation display unit 10 is increased, the contact friction is reduced. The resistance can be rotated without being greatly affected by the length, and the wear at the horizontally pivoted portion can be reduced, so that the length direction of the rotation display unit 10 can be lengthened. . Therefore, it is possible to cope with the two-dimensional enlargement without increasing the displacement amount of the temperature responsive driving means, that is, the driving energy of the compression spring 35 and the compression spring 35 made of a pair of shape memory alloys.

Also in this embodiment, as the rotation display section 10 of the above embodiment, the roadside sign surface 11 displayed at a temperature equal to or higher than the predetermined first set temperature of the above embodiment is used as the first recursive display. The reflecting surface, which is a frozen sign surface 12 displayed when the temperature is lower than a second predetermined temperature, is a second retroreflective surface. It is sufficient that the second retroreflective surface as the surface 12 can be maintained, and the roadside sign surface 11 displayed at or above a predetermined first set temperature can be used to display road conditions other than frozen display, geographical guidance, local information, commercial information, and the like. By describing the various types of information described above, it is possible to clearly distinguish the frozen display from the display at other times.

That is, in the sign display device for freezing display of this embodiment, when the temperature rises, the housing 4 having at least a front surface provided with a light-transmitting member made of the transparent plate 4a is disposed on the light-transmitting member side. A first surface including information such as road conditions, geographical guidance, local information, and commercial information other than the frozen display displayed when the temperature exceeds the first set temperature, which is lower than the first set temperature when the temperature falls. A second retroreflective surface consisting of a frozen sign surface 12 displayed when the second set temperature is lowered,
A cut surface cut at a right angle to the longitudinal direction of the first retroreflective surface and the second retroreflective surface is disposed in a substantially V shape.
Rotating display unit 10 comprising at least one or more, compression springs 35 and 36 made of a shape memory alloy for obtaining a driving force for rotationally displacing with the predetermined temperature as a center, and rotating display unit 1
A temperature responsive drive unit including a moving member 40 having a rack 41 meshed with the 0 pinion 14b; and a rotation display unit 10 located on the side of the housing 4 so as to be freely rotatable, and １ ／ of its weight. And a bearing on the other side of the housing 4 that supports the other end of the rotation display unit 10 and that receives a bearing that obtains rotational force from the temperature responsive drive unit. And a side mounting member.

Therefore, in this type of embodiment, since the rotation display section 10 may be disposed between the side mounting members, by increasing the number of the rotation display sections 10 in the vertical direction, A first roadside sign surface 11 having an arbitrary length;
And the second retroreflective surface can be formed. In addition, since the weight of the rotation display unit 10 is supported by both ends of the rotation display unit 10, the load is divided by two, and even if the length of the rotation display unit 10 is increased, the contact friction is reduced. The resistance can be rotated without being greatly affected by the length, and the wear at the horizontally pivoted portion can be reduced, so that the length direction of the rotation display unit 10 can be lengthened. . Therefore, it is possible to cope with the two-dimensional enlargement without increasing the displacement amount of the temperature responsive driving means, that is, the driving energy of the compression spring 35 and the compression spring 35 made of a pair of shape memory alloys. Also,
On the first side, various information such as road conditions, geographical guidance, local information, commercial information, etc., other than the frozen display are described. Can be an effective display.

The freeze display sign device of the above embodiment is
A first retroreflective surface composed of a first surface or roadside sign surface 11 for road conditions, geographical guidance, local information, commercial information, etc. other than frozen display on the rotation display unit 10 and a second surface composed of a frozen sign surface 12 The inner surface angle of the cut surface of the retroreflective surface is substantially V-shaped, and the inner surface angle is approximately 60 degrees. The first surface of road conditions, geographical guidance, local information, commercial information, etc., other than frozen display or The first retroreflective surface composed of the roadside sign surface 11 and the second retroreflective surface composed of the frozen sign surface 12 are each made to have a substantially triangular cross section, and the length of both surfaces is made uniform. Since the line connecting all the ends has a structure forming a substantially equilateral triangle, the trajectory drawn by the rotation center position when rotating is located inside a corner (edge), and the trajectory is located between the adjacent members. There is no possibility that interference such as collision occurs between them.

The freeze display sign device of the above embodiment is
A first retroreflective surface or a frozen sign surface 12 comprising a first surface or a roadside sign surface 11 for road conditions, geographical guidance, local information, commercial information, etc. other than the frozen display on the rotation display unit 10.
Since the second retroreflective surface made of at least one of a character, a graphic, and a character that calls attention to freezing attention is made, a period until the freezing display marker device is fixed to the general public as a marker is set. Can be shorter.

The freeze display sign device of the above embodiment is
A first retroreflective surface or a frozen sign surface 12 comprising a first surface or a roadside sign surface 11 for road conditions, geographical guidance, local information, commercial information, etc. other than the frozen display on the rotation display unit 10.
A second retroreflective surface comprising at least one of characters, graphics, and characters that call attention to freezing, and freezing attention in relation to one or more of characters, graphics, and characters on an adjacent display board. Since the words are evoked, the number of displayed characters does not increase, so that it is not necessary to increase the size of the freeze display marker device.

The freeze display sign device of the above embodiment is
Rotation display unit 10, temperature-responsive drive unit, upper mounting member 60,
Since the lower mounting member 20 is assembled and disposed on the side of the back cover 9 constituting the housing 4, it is easy to increase the size and the workability of the assembly is improved.

Although the rotation display unit 10 of the freeze display sign device of the above embodiment has been described with four cases, in the case of practicing the present invention, the minimum number may be one. It can be implemented as one or more.

[0087]

As described above, according to the first aspect of the present invention, there is provided a freeze display sign device which is provided at least on a light transmitting member side of a housing having a light transmitting member disposed on a front surface when a temperature rises. A first retroreflective surface displayed when the temperature exceeds a set temperature, and a second retroreflective surface displayed when a second set temperature lower than the first set temperature is lowered when the temperature decreases. A rotating display unit comprising at least one of a plurality of cut surfaces cut at a right angle to a longitudinal direction of the first retroreflective surface and the second retroreflective surface and arranged in a substantially V-shape; A temperature-responsive drive unit having a shape memory alloy that obtains a driving force that is rotationally displaced in accordance with a temperature around the predetermined temperature, and is located at an upper part of the housing, and the rotary display unit is rotatable, and ,
An upper mounting member provided with an upper support for supporting the upper end of the rotation display unit, and a lower part of the housing, supporting the lower end of the rotation display unit, and supporting the lower end of the rotation display unit from the temperature responsive drive unit. A lower mounting member provided with a lower support for obtaining a rotational force.

Therefore, since the rotation display section may be disposed between the upper mounting member and the lower mounting member, by increasing the number of the rotation display sections in the lateral direction, the rotation display section can have an arbitrary length. A first retroreflective surface and a second retroreflective surface can be formed. In addition, since the weight of the rotation display unit is supported by the upper mounting member at the upper end of the rotation display unit, even if the length of the rotation display unit is increased, the contact friction resistance is long. Therefore, the rotation display portion can be rotated without being greatly affected, so that the length direction of the rotation display portion can be lengthened. Therefore, it is possible to cope with the two-dimensional enlargement without increasing the displacement amount and the driving energy of the temperature-responsive driving means.

[0089] According to a second aspect of the present invention, there is provided a freeze display sign device which is displayed at least on a light-transmitting member side of a housing having a light-transmitting member disposed on the front surface when the temperature exceeds a first set temperature when the temperature rises. A first surface having a second retroreflective surface that is displayed when a second set temperature lower than the first set temperature is lowered when the temperature drops, and wherein the first surface and the A rotation display unit comprising at least one of a cut surface cut at a right angle to the length direction of the second retroreflective surface and arranged in a substantially V shape;
A temperature-responsive drive unit having a shape memory alloy that obtains a driving force that is rotationally displaced according to the temperature around the predetermined temperature, and located at an upper part of the housing, wherein the rotary display unit is rotatable, and An upper mounting member provided with an upper support for supporting the upper end of the rotation display unit; and a lower position of the housing, supporting a lower end of the rotation display unit, and rotating from the temperature responsive drive unit. And a lower mounting member provided with a lower support for obtaining a force.

Therefore, since the rotation display section may be disposed between the upper mounting member and the lower mounting member, by increasing the number of the rotation display sections in the lateral direction, the rotation display section can have an arbitrary length. A first surface and a second retroreflective surface can be formed. In addition, since the weight of the rotation display unit is supported by the upper mounting member at the upper end of the rotation display unit, even if the length of the rotation display unit is increased, the contact friction resistance is long. Therefore, the rotation display portion can be rotated without being greatly affected, so that the length direction of the rotation display portion can be lengthened. Therefore, it is possible to cope with the two-dimensional enlargement without increasing the displacement amount and the driving energy of the temperature-responsive driving means.
Furthermore, on the first surface, various types of information such as road conditions, geographical guidance, local information, commercial information, etc., other than the frozen display are described, so that when the display surface is large, the display is frozen, Can be made an effective display.

According to a third aspect of the present invention, there is provided a freezing display marker device in which the upper support portion according to the first or second aspect is a bearing for reducing frictional resistance with respect to a rotating plane. In addition to the effects described in 2, the contact resistance can be reduced with a simple structure, and the possibility of swinging in the direction perpendicular to the length of the rotation display unit is reduced, and stable rotation becomes possible.

According to a fourth aspect of the present invention, there is provided a sign display device for freezing, wherein the upper support portion according to any one of the first to third aspects is a ball bearing. In addition to the effect described in any one of the above, the frictional resistance can be reduced with a simple structure, and the possibility of swinging in the direction perpendicular to the length of the rotation display unit is reduced, and stable rotation is free. Become.

According to a fifth aspect of the present invention, there is provided a freeze display sign device which is displayed at least on a light-transmitting member side of a housing having a light-transmitting member disposed on the front surface when the temperature exceeds a first set temperature when the temperature rises. A first retroreflective surface, a second retroreflective surface displayed when a second set temperature lower than the first set temperature is lowered when the temperature decreases, and wherein the first retroreflective surface is displayed. A rotating display portion comprising at least one reflecting surface and a cut surface cut at a right angle to the length direction of the second retroreflective surface and arranged in a substantially V-shape; A temperature responsive drive unit having a shape memory alloy that obtains a driving force to be rotationally displaced by temperature, and located on the side of the housing, wherein the rotary display unit is rotatable in a vertical direction, and its weight is reduced. A side mounting member provided with a side support portion for horizontally supporting, and the other side of the housing , The other side end supporting the other side end of the rotation display unit, and supporting the weight horizontally, and having the other side support unit for obtaining the rotational force from the temperature responsive drive unit. And an attachment member.

Therefore, since the rotation display section may be disposed between the side mounting members, the first retroreflection of an arbitrary length can be achieved by increasing the number of the rotation display sections provided in the vertical direction. A surface and a second retroreflective surface can be formed. Further, since the weight of the rotation display unit is supported at both ends of the rotation display unit, even if the length of the rotation display unit is increased, the contact frictional resistance is greatly affected by the length. Since rotation can be performed without receiving the rotation, the length direction of the rotation display unit can be lengthened. Therefore, without increasing the displacement amount and drive energy of the temperature-responsive drive means,
Can respond to two-dimensional enlargement.

According to a sixth aspect of the present invention, there is provided a freeze display sign device which is displayed at least on a light transmitting member side of a housing having a light transmitting member disposed on the front surface when the temperature exceeds a first set temperature when the temperature rises. A first surface having a second retroreflective surface that is displayed when a second set temperature lower than the first set temperature is lowered when the temperature drops, and wherein the first surface and the A rotation display unit comprising at least one of a cut surface cut at a right angle to the length direction of the second retroreflective surface and arranged in a substantially V shape;
A temperature-responsive drive unit having a shape memory alloy that obtains a driving force that is rotationally displaced according to a temperature around the predetermined temperature, and a rotation display unit that is located on a side of the housing and is rotatable in a vertical direction. And, a side mounting member provided with a side support portion for horizontally supporting the weight thereof, and located on the other side of the housing, supporting the other side end of the rotating display portion, and And a second side mounting member provided with a second side supporting portion for supporting the weight horizontally and obtaining a rotational force from the temperature responsive driving portion.

Therefore, since the rotation display section may be disposed between the side mounting members, the number of the rotation display sections provided in the vertical direction is increased, so that the first surface and the first surface having an arbitrary length can be formed. A second retroreflective surface can be formed. Further, since the weight of the rotation display unit is supported at both ends of the rotation display unit, even if the length of the rotation display unit is increased, the contact frictional resistance is greatly affected by the length. Since rotation can be performed without receiving the rotation, the length direction of the rotation display unit can be lengthened. Therefore, it is possible to cope with the two-dimensional enlargement without increasing the displacement amount and the driving energy of the temperature-responsive driving means. Furthermore, on the first surface, various types of information such as road conditions, geographical guidance, local information, commercial information, etc., other than the frozen display are described, so that when the display surface is large, the display is frozen, Can be made an effective display.

[0097] According to a seventh aspect of the present invention, there is provided a freezing display marker device according to any one of the first to sixth aspects, wherein the rotation display portion has a substantially V-shaped cross section of approximately 60 degrees. Since the sizes of the retroreflective surface and the second retroreflective surface are substantially triangular in cross section, in addition to the effect according to any one of claims 1 to 6, the rotating surface is rotated. At this time, the trajectory drawn by the end due to the rotation is always inside the corner (edge), and the possibility of collision or the like with other members is eliminated.

[0098] According to an eighth aspect of the present invention, there is provided the freeze display sign device according to any one of the first to seventh aspects, wherein the first surface, the first retroreflective surface, Second
8. The effect according to any one of claims 1 to 7, wherein at least one of the retroreflective surfaces has at least one of a character, a graphic, and a character that calls attention to freezing. In addition, it is possible to shorten a period until the sign device for freezing indication is thoroughly known to the general public as a sign.

The freeze display sign device according to the ninth aspect of the present invention is the freeze display sign device according to any one of the first to eighth aspects, wherein the first surface, the first retroreflective surface, Second
One or more of the retro-reflective surfaces of one or more of the characters, graphics, and characters that call attention to freezing, and freeze in relation to one or more of the characters, graphics, and characters on the adjacent display board Therefore, in addition to the effect described in any one of claims 1 to 8, there is no need to increase the size of the frozen display sign device because the number of display characters does not increase.

A tenth aspect of the present invention is the freeze display sign device, wherein the rotation display part, the temperature responsive drive part, the upper support part, and the lower support part according to any one of the first to ninth aspects are provided in the housing. Since it is arranged and attached to the back cover side constituting the above, in addition to the effect according to any one of claims 1 to 9, it becomes easy to increase the size, and The assembly workability is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a retroreflective operation state of a frozen display sign device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an attached state of the freezing display marker device according to one embodiment of the present invention.

FIG. 3 is a perspective view showing an embodiment of a use state of the freezing indicator device according to one embodiment of the present invention.

FIG. 4 is a front view showing an embodiment of a use state of the freeze display sign device according to one embodiment of the present invention.

FIG. 5 is a rear view showing a housing of the sign device for freezing display according to one embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along the line AA of FIG. 5 showing the housing of the sign device for freezing display according to one embodiment of the present invention.

FIG. 7 is a schematic exploded view of parts of a freeze display sign device according to an embodiment of the present invention.

FIG. 8 is an enlarged development view of a main part showing an attached state of a rotation display unit of the sign device for freeze display according to one embodiment of the present invention.

FIG. 9 is an explanatory view of a rotation operation of a rotation display section of the freeze display marker device according to one embodiment of the present invention.

FIGS. 10A and 10B are a cross-sectional view showing an attached state of an upper attachment member and a sectional view showing an attached state of a lower attachment member of the signage device for freezing display according to an embodiment of the present invention.
It is.

FIG. 11 is a plan view (a) of the lower mounting member when the rotation display unit of the freeze display marker device according to the embodiment of the present invention is rotated right, and the rotation display unit is left. It is the top view (b) of the lower mounting member at the time of rotation, and the front view (c) of only the lower mounting member.

FIG. 12 is a cross-sectional view showing a mounting state of a moving member and a lower mounting member of the freeze display sign device according to one embodiment of the present invention.

FIG. 13 is an explanatory diagram showing a relationship between a moving member and a pinion of the freeze display sign device according to one embodiment of the present invention, and (a) shows a state where the moving member has moved rightward. (B) shows a state in which the moving member has moved to the left.

[Explanation of symbols]

 Reference Signs List 4 Housing 4a Transparent plate 10 (10A to 10D) Rotation display unit 11 (11A to 11D) Roadside sign surface 12 (12A to 12D) Freezing sign surface 13 Upper member 13a Upper shaft 14 Lower member 14a Lower shaft 14b Pinion 20 Lower Side mounting member 21 (21A to 21D) Protrusion 23 (23A to 23D) Sleeve 30, 31 Compression spring 35, 36 Compression spring made of shape memory alloy 40 Moving member 41 Rack 60 Upper mounting member 62 Bearing metal 63 Sliding ring

Claims (10)

(57) [Claims] 1. A housing having a light-transmitting member disposed at least on a front surface thereof, and a first recursion displayed on a light-transmitting member side of the housing when a temperature exceeds a first set temperature when the temperature rises. A reflecting surface, having a second retroreflective surface displayed when a second set temperature lower than the first set temperature is lowered at the time of temperature decrease, wherein the first retroreflective surface and the second A rotating display unit comprising at least one of a cut surface cut at a right angle to a longitudinal direction of the second retroreflective surface and arranged in a substantially V-shape; A temperature responsive drive unit having a shape memory alloy for obtaining a displacing drive force, located at the top of the housing, allowing the rotation display unit to rotate, and supporting the upper end of the rotation display unit by its weight. An upper mounting member provided with an upper support portion, And, wherein the lower end of the rotating display unit supports, the temperature-actuated freeze display indicator device characterized by comprising a lower mounting member which is disposed a lower support portion for obtaining a rotating force from the driving unit. 2. A housing having at least a front surface provided with a light-transmitting member, and a first surface displayed on the light-transmitting member side of the housing when a temperature rises and exceeds a first set temperature. A second retroreflective surface which is displayed when a second set temperature lower than the first set temperature is lowered at the time of a temperature decrease, wherein the first surface and the second retroreflective surface are displayed. A rotating display section comprising at least one of a cut surface cut at a right angle to the length direction of the surface and arranged in a substantially V-shape; and a driving force for rotating and displacing the predetermined temperature as a center. A temperature responsive drive unit having a shape memory alloy for obtaining the above, and an upper support unit which is located at the upper part of the housing, makes the rotation display unit rotatable, and supports the weight of the upper end of the rotation display unit. And an upper mounting member provided with The lower end parts supporting the temperature-actuated freeze display indicator device characterized by comprising a lower mounting member which is disposed a lower support portion for obtaining a rotating force from the driving unit. 3. The freezing display sign device according to claim 1, wherein the upper support portion is a bearing that reduces frictional resistance with respect to a rotation plane. 4. The freezing display sign device according to claim 1, wherein the upper support portion is a ball bearing. 5. A housing having a light-transmitting member disposed at least on a front surface thereof, and a first recursion displayed on the light-transmitting member side of the housing when a temperature rises and exceeds a first set temperature. A reflecting surface, having a second retroreflective surface displayed when a second set temperature lower than the first set temperature is lowered at the time of temperature decrease, wherein the first retroreflective surface and the second A rotating display unit comprising at least one of a cut surface cut at a right angle to a longitudinal direction of the second retroreflective surface and arranged in a substantially V-shape; A temperature-responsive drive section having a shape memory alloy for obtaining a displacing drive force; and a side located on a side of the housing, wherein the rotary display section is rotatable in a vertical direction and horizontally supports the weight thereof. A side mounting member on which a support portion is disposed; and The other side end of the rotating display unit supports, and supports the weight horizontally,
A sign device for freezing display, comprising: a second side mounting member provided with a second side support portion that obtains rotational force from the temperature responsive drive unit. 6. A housing having at least a front surface provided with a light-transmitting member, and a first surface displayed on a light-transmitting member side of the housing when a temperature exceeds a first set temperature when the temperature rises. A second retroreflective surface which is displayed when a second set temperature lower than the first set temperature is lowered at the time of a temperature decrease, wherein the first surface and the second retroreflective surface are displayed. A rotating display section comprising at least one of a cut surface cut at a right angle to the length direction of the surface and arranged in a substantially V-shape; and a driving force for rotating and displacing the predetermined temperature as a center. A temperature responsive drive unit having a shape memory alloy for obtaining the following; and a side support unit which is located on a side of the housing, makes the rotary display unit rotatable in a vertical direction, and horizontally supports the weight thereof. A side mounting member provided on the other side of the housing; Supporting the other side edge, and supporting the weight horizontally,
A sign device for freezing display, comprising: a second side mounting member provided with a second side support portion that obtains rotational force from the temperature responsive drive unit. 7. A substantially V-shaped cross section of the rotation display section is approximately 60 degrees, the lengths of both surfaces are substantially uniform, and a line connecting all ends of the cross section forms a substantially equilateral triangle. The sign device for freezing display according to any one of claims 1 to 6, characterized in that: 8. The first surface of the rotation display unit,
8. The method according to claim 1, wherein at least one of the first retroreflective surface and the second retroreflective surface has at least one of a character, a graphic, and a character that calls attention to freezing.
The sign device for freezing display according to any one of the above. 9. The first surface of the rotation display unit,
One or more surfaces of the first retroreflective surface and the second retroreflective surface have at least one of characters, graphics, and characters that call attention to freezing, and characters and graphics on an adjacent display board. 9. A word that calls attention to freezing in relation to one or more of the characters.
4. The marking device for freezing display according to any one of the above. 10. The apparatus according to claim 1, wherein the rotation display section, the temperature-responsive drive section, the upper support section, and the lower support section are assembled and disposed on the back cover side of the housing. Item 10. The freezing display marker device according to any one of Items 9 to 18.