JP6406029B2 - Blind spot assist device - Google Patents

Description

  The present invention relates to a blind spot assisting device that projects an image of a blind spot area obstructed by an obstacle such as a front pillar in a vehicle.

  2. Description of the Related Art Conventionally, for example, a device disclosed in Patent Document 1 is known as a visual recognition device that displays a blind spot caused by an obstacle such as a front pillar in a vehicle. The visual recognition device includes a first mirror that reflects the front of the vehicle and a second mirror that reflects light incident on the first mirror toward the driver, and an image that the driver can see through the direct visual recognition area that sandwiches the front pillar of the vehicle. The first mirror and / or the second mirror can be adjusted so that the images reflected on the second mirror are continuous.

JP 2006-231998 A

  However, in the visual recognition device according to Patent Document 1, it is necessary to adjust the positional relationship between the first and second mirrors so as not to obstruct the second mirror and the landscape when viewed from the driver. There was a problem that it was complicated. Further, it is desired that the mirror can be easily assembled at the time of manufacture in order to improve the accuracy of the mirror arrangement and increase the flatness of the mirror surface.

  The present invention has been made in view of the above problems, and can more easily project an image of a blind spot area continuously with an image directly visually recognized by a viewer, and can easily assemble a mirror. An object of the present invention is to provide a blind spot assisting device that can be used.

In order to achieve the above object, a blind spot assisting device according to the present invention is a blind spot assisting device that displays an image of a blind spot area blocked by an obstacle,
Arranged so that a semi-transmission mirror that receives light representing the image, is provided on the viewer side, reflects a part of the light, and transmits a part of the light, and a mirror that reflects the light to the semi-transmission mirror face each other. A pair of mirrors,
A case body that houses the pair of mirrors,
The pair of mirrors are inserted into the case body in a direction along the plane,
The case body includes a guide portion having a gap into which a peripheral edge of each of the pair of mirrors is inserted.

  According to the present invention, it is possible to more easily display an image of a blind spot area continuously with an image directly visually recognized by a viewer, and it is possible to facilitate the assembly work of a mirror.

It is a figure which shows the general view of the driver's seat vicinity of the vehicle by which the blind spot auxiliary device which concerns on 1st embodiment of this invention is arrange | positioned. It is a top view which shows the general view of a blind spot auxiliary device same as the above. It is a perspective view which shows a pair of mirror of a blind spot auxiliary | assistance apparatus same as the above. It is a disassembled perspective view which shows a blind spot auxiliary device same as the above. It is sectional drawing which shows a blind spot auxiliary | assistance apparatus same as the above. It is a figure which shows the 1st, 3rd guide part of a blind spot auxiliary device same as the above. It is a figure which shows the modification of a blind spot auxiliary device same as the above.

  A blind spot assisting apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing an overview of the vicinity of a driver's seat of a vehicle 1 in which a blind spot assisting device 100 according to the first embodiment is arranged. As shown in FIG. 1, the vehicle 1 includes a steering 10, a windshield glass 20, side glasses 30 and 40, and front pillars 50 and 60. Reference numerals 21 and 22 denote light-shielding black ceramic (black ceramic) portions that are printed on the periphery of the windshield glass 20.

  In the vehicle 1, a viewer (mainly a driver) directly sees the scenery in the area where the windshield glass 20 (excluding the black ceramic portion 21) and the side glasses 30 and 40 are arranged, while the front pillar 50, In the area where 60 and the black sera parts 21 and 22 are arranged, the front pillars 50 and 60 and the black sera parts 21 and 22 block the visual field of the viewer, resulting in a blind spot area where the landscape cannot be seen directly. That is, the front pillars 50 and 60 and the black ceramic portions 21 and 22 correspond to obstacles in the present invention.

Next, the basic configuration of the blind spot assisting device 100 according to the present embodiment will be described based on FIGS. 2 is a plan view showing an overview of the blind spot assisting device 100, and FIG. 3 is a perspective view showing a pair of plane mirrors 110. As shown in FIG.
As shown in FIGS. 1 and 2, the blind spot assisting device 100 is disposed on the front pillar 50 on the right side (driver side) when viewed from the viewer side, and is a blind spot area D that is blocked by the front pillar 50 and the black ceramic portion 21. The image of The blind spot assisting device 100 is disposed so as to face the front pillar 50 and the black ceramic portion 21 when viewed from the viewer.

  As shown in FIGS. 2 and 3, the blind spot assisting device 100 includes a pair of plane mirrors (a pair of mirrors) 110.

  The pair of flat mirrors 110 are arranged such that a semi-transmissive flat mirror (semi-transmissive mirror) 111 that reflects a part of incident light and transmits a part thereof and a flat mirror (mirror) 112 face each other in parallel. It is composed by doing. The transflective flat mirror 111 and the flat mirror 112 are fixed in a parallel positional relationship by being arranged in a case body described later. It should be noted that the pair of mirrors of the present invention need not be arranged completely in parallel as long as they are arranged so as to face each other, and may be curved mirrors instead of plane mirrors.

  The transflective flat mirror 111 is disposed on the viewer side, and by depositing a metal such as aluminum on the surface of a base material made of a translucent resin material such as polyethylene terephthalate, polycarbonate, polyethylene, acrylic, etc. A transflective layer having a reflectance is formed. The transflective flat mirror 111 may be formed by coating the surface of a base material with a dielectric multilayer film. The transflective flat mirror 111 has a base 111a facing the flat mirror 112 and an extending portion 111b extending from the base 111a. The transflective flat mirror 111 and the flat mirror 112 are stepped in the horizontal direction. Are arranged as follows.

  The plane mirror 112 is arranged so that the plane (reflection surface) thereof is parallel to the plane (semi-transmission reflection surface) of the semi-transmission plane mirror 111. For example, the substrate made of the above-described translucent resin material is used. It is a flat aluminum vapor deposition mirror formed by vapor-depositing a metal such as aluminum on the surface.

  The semi-transmissive flat mirror 111 and the flat mirror 112 have their respective planes (semi-transmissive reflective surface and reflective surface) perpendicular to the traveling direction of the light L in the pair of flat mirrors 110 (arrow direction in FIG. 3). It is formed in a substantially wedge shape so that the width gradually decreases in the traveling direction of the light L in the pair of flat mirrors 110. This is to reduce the size and weight by removing unnecessary portions that are out of the visual field range of the viewer. Further, the incident side end (incident side side) E10 of the transflective flat mirror 111 and the incident side end (incident side side) E11 of the flat mirror 112 are along the glass surface of the windshield glass 20. Is inclined. This is because the glass is disposed close to the glass surface of the windshield glass 20.

  Next, the operation of the pair of plane mirrors 110 will be described with reference to FIG. FIG. 2 shows a state in which the viewer is seated in the driver's seat, and viewpoint 2 indicates the viewer's viewpoint (eye point).

In FIG. 2, a blind spot area D that is blocked by a front pillar 50 (not shown, but also including the black ceramic portion 21) is generated in the front view of the viewer (viewpoint 2). Accordingly, the object M present in the blind spot area D cannot be directly viewed from the viewpoint 2.
On the other hand, the light L from the object M is incident on the pair of plane mirrors 110 and is repeatedly reflected between the pair of plane mirrors 110, while a part of the light L is emitted from the pair of plane mirrors 110 (semi-transmissive plane). The light passes through the mirror 111). The light incident on the pair of plane mirrors 110 and repeatedly reflected between the pair of plane mirrors 110 is light having an inclination with respect to the parallel plane of the pair of plane mirrors 110. Part of the light L emitted from the pair of plane mirrors 110 reaches the viewpoint 2. Therefore, the image of the object M reflected on the plane mirror 112 can be viewed through the transflective plane mirror 111 continuously with the scenery that can be directly viewed from the viewpoint 2. In addition, in a small area on the back side of the front pillar 50 (a portion indicated by hatching) in the blind spot area D, light from this area cannot enter the pair of plane mirrors 110, and the image is captured by the pair of plane mirrors 110. Although it cannot be projected, the image of the blind spot area D can be projected by the pair of plane mirrors 110 in almost all other areas.
In addition, when the image of the blind spot area D is projected by the pair of plane mirrors 110, the viewer places the blind spot assisting device 100 at an arbitrary height of the front pillar 50 (a height suitable for the viewpoint 2) and the pair of plane mirrors 110. Are arranged such that the angle of the pair of plane mirrors 110 is adjusted so that the image of the blind spot area D is reflected, that is, the light L from the blind spot area D reaches the viewpoint 2. Since the translucent plane mirror 111 and the plane mirror 112 are fixed in parallel with each other, the pair of plane mirrors 110 can be arranged at the same time by a single arrangement operation, and the pair of flat mirrors 110 can be arranged by a single adjustment operation. The angle of the plane mirror 110 can be adjusted simultaneously.

  Next, the exterior structure of the blind spot assisting device 100 will be described with reference to FIGS.

  As shown in FIGS. 4 and 5, the blind spot assisting device 100 includes a pair of plane mirrors 110 and a case body 120. 4 is an exploded perspective view of the blind spot assisting device 100, FIG. 5 (a) is a cross-sectional view taken along the line XX of FIG. 4, and FIG. The state stored in is shown. 4 and 5, the front side when viewed from the viewer is described as “front”, and the depth side is described as “rear”.

  The case body 120 houses a pair of plane mirrors 110 and is divided into a housing part 121 and a lid part 122, and is configured by assembling the housing part 121 and the lid part 122. The

  The casing 121 is made of a light-shielding resin material such as ABS, and has a space for accommodating the pair of flat mirrors 110. The first opening 121a, the second opening 121b, A third opening 121c and a fourth opening 121d. The first opening 121a exposes the semi-transmissive reflection surface of the semi-transmissive flat mirror 111. The second opening part 121 b takes in the light L from the blind spot region D between the pair of flat mirrors 110. The third opening 121c emits the light L reflected by the flat mirror 112 to the viewer side. The fourth opening 121d is for inserting the pair of plane mirrors 110 into the housing 121 along the plane (semi-transmissive reflection surface and reflection surface), and is inserted through the pair of plane mirrors 110. It is formed in a size sufficient to A plurality of louvers 121e are provided in the first opening 121a. The plurality of louvers 121e are flat plate portions provided at predetermined intervals in the first opening 121a, and are positioned on the viewer side of the semi-transmissive flat mirror 111 at a predetermined angle from the viewer side (mainly the semi-transmissive flat mirror 111). Alternatively, it functions as a light shielding unit that blocks external light incident on the pair of plane mirrors 110 (at an incident angle reflected by the plane mirror 112 and reaching the viewpoint 2). Further, the inner surface (left and right side surfaces and the lower surface) of the housing part 121 has a groove part 121f (gap) that is located on the front side along the outer shape of the housing part 121 and into which the periphery of the semi-transmissive flat mirror 111 is inserted. There are provided a first guide part 121g and a second guide part 121i having a groove part 121h (gap) which is located on the rear side and into which the peripheral edge of the flat mirror 112 is inserted.

  The lid 122 is a flat plate member that is made of a light-blocking resin material such as ABS, as in the case 121, and closes the fourth opening 122 d of the case 121 that houses the pair of flat mirrors 110. A third guide part 122b having a groove part 122a (gap), which is located on the front side along the longitudinal direction of the cover part 122 and into which the periphery of the semi-transmissive flat mirror 111 is inserted, on the lower surface of the cover part 122, and the rear And a fourth guide part 122d having a groove part 122c (gap) into which the peripheral edge of the flat mirror 112 is inserted.

  As described above, the first and second guide portions 121g and 122i are provided on the inner surface of the housing portion 121, respectively, and the third and fourth guide portions 122b and 122d are provided on the lower surface of the lid portion 122, respectively. It has been. The first and second guide portions 121g and 122i and the third and fourth guide portions 122b and 122d function as the guide portion of the present invention having a gap into which the peripheral edges of the pair of plane mirrors 110 are inserted. . That is, the first guide part 121g and the third guide part 122b function as a front guide part having a gap into which the periphery of the semi-transmissive flat mirror 111 is inserted, and the second guide part 121i. The fourth guide portion 122d functions as a rear guide portion having a gap in which the peripheral edge of the plane mirror 112 is inserted among the guide portions.

Next, details of the first and second guide portions 121g and 121i and the third and fourth guide portions 122b and 122d will be described with reference to FIG. 6A is a front view of the first guide portion 121g and the third guide portion 122b, and FIG. 6B is a cross-sectional view taken along line Y1-Y1 of FIG. 6A. ) Is a cross-sectional view taken along line Y2-Y2 of FIG. 6A, FIG. 6D is a cross-sectional view taken along line Y3-Y3 of FIG. 6A, and FIG. 6E is a cross-sectional view of FIG. It is a ZZ line sectional view. The following description will be given only for the first guide part 121g and the third guide part 122b, but the second guide part 121i is the same as the first guide part 121g, and the fourth guide part 122d is The third guide part 122b is assumed to be the same.
As shown in FIG. 6A, the first guide portion 121g has a housing corresponding to three sides (the left and right sides and the lower side) of the four sides formed by the periphery of the substantially rhomboid semi-transmissive flat mirror 111. It is a prismatic member provided in a substantially U shape integrally with the body part 121 or separately, and a groove part 121f is formed on the inner surface side thereof. In other words, three of the peripheral edges of the semi-transmissive flat mirror 111 are inserted into the groove 121f of the first guide part 121g. As shown in FIGS. 6B, 6C, and 6D, the groove 121f is formed so that its width is slightly larger than the thickness of the semi-transmissive flat mirror 111, and the peripheral portion of the semi-transmissive flat mirror 111 can be inserted. In addition, the transflective flat mirror 111 is held. Further, the portion of the groove 121f corresponding to the lower side of the semi-transmissive flat mirror 111 is formed such that the lower end (bottom) side is exactly the same as or slightly smaller than the plate thickness of the semi-transmissive flat mirror 111, and the peripheral edge (lower side) of the semi-transmissive flat mirror 111 is formed. ) Functions as a press-fitting portion for fixing the semi-transmissive flat mirror 111.
As shown in FIG. 6A, the third guide portion 122b is a lid portion corresponding to one side (upper side) that is not inserted into the groove portion 121f of the first guide portion 121g in the periphery of the semi-transmissive flat mirror 111. It is a prismatic member that is provided integrally with 122 or linearly provided separately, and a groove 122a is formed on the lower surface side thereof. That is, one side of the peripheral edge of the semi-transmissive flat mirror 111 is inserted into the groove 122a of the third guide part 122b. As shown in FIG. 6 (e), the groove 122a has a width slightly lower than the plate thickness of the semi-transmissive flat mirror 111 on the lower side, the peripheral edge of the semi-transmissive flat mirror 111 can be inserted, and the upper end side is semi-finished. It is formed to be exactly the same as or slightly smaller than the plate thickness of the transmissive flat mirror 111, and functions as a press-fitting portion that fixes the semi-transmissive flat mirror 111 by press-fitting the peripheral edge (upper side) of the semi-transmissive flat mirror 111.

(Storing and fixing method of the pair of flat mirrors 110)
First, the semi-transmissive flat mirror 111 and the flat mirror 112 are slid along the respective planes (semi-transmissive reflective surface and reflective surface) from the fourth opening 121 d of the housing unit 121, and inside the housing unit 121. insert. At this time, the transflective flat mirror 111 is inserted into the groove 121f of the first guide part 121g in the right and left sides of the periphery, and guided by the groove 121f (while the insertion direction and insertion position are restricted). It is slid into the part 121. Further, the semi-transmissive flat mirror 111 is fixed by being press-fitted into the lower end (narrow portion) of the lower groove 121f. The flat mirror 112 is slid into the housing 121 while being guided by the groove 121h by inserting the right and left sides of the periphery of the flat mirror 112 into the groove 121h of the second guide 121i. Furthermore, the flat mirror 112 is press-fitted into the lower end (narrow portion) of the lower groove 121h and firmly fixed. In consideration of sliding the semi-transmissive flat mirror 111 and the flat mirror 112 along the plane, the portions where the semi-transmissive flat mirror 111 and the flat mirror 112 of the grooves 121f and 122h are press-fitted are as in the present embodiment. It is desirable to be provided at the end in the sliding direction.
Next, the lid 122 is disposed so as to close the fourth opening 121 d of the housing 121. That is, the lid part 122 is assembled to the housing part 121 in a direction along the plane of the transflective flat mirror 111 and the flat mirror 112. At this time, the upper side of the periphery of the semi-transmissive flat mirror 111 is inserted into the groove 122a of the third guide portion 122b, and the upper side of the peripheral edge of the flat mirror 112 is inserted into the groove 122s of the fourth guide portion 122d. By inserting the peripheral edge of the semi-transmissive flat mirror 111 and the peripheral edge of the flat mirror 112 into the groove portions 122 a and 122 c, respectively, the semi-transmissive flat mirror 111 and the flat mirror 112 are guided to appropriate positions with respect to the lid portion 122. Further, the upper sides of the transflective flat mirror 111 and the flat mirror 112 are pressed into the upper ends (the narrow portions) of the groove 122a and the groove 122c, respectively, and are firmly fixed. And the cover part 122 is fixed with respect to the housing | casing part 121 using fixing members, such as a screw and a hook, and the blind spot auxiliary | assistance apparatus 100 is obtained.

The blind spot assisting device 100 having the above configuration is a blind spot assisting device 100 that displays an image of the blind spot area D that is blocked by an obstacle (front pillar 50),
The light L representing the image is incident, the semi-transparent flat mirror 111 provided on the viewer side that reflects part of the light L and transmits part of the light L, and the flat mirror 112 that reflects the light L to the semi-transmissive flat mirror 111. A pair of plane mirrors 110 disposed so as to face each other;
A case body 120 that houses a pair of plane mirrors 110,
The pair of plane mirrors 110 are inserted into the case body 120 in a direction along the plane,
The case body 120 includes guide portions (first and second guide portions 121g and 121i and third and fourth guides) having grooves 121f, 121h, 122a, and 122c into which the peripheral edges of the pair of plane mirrors 110 are inserted. Part 122b, 122d).

  Thereby, since the semi-transmissive flat mirror 111 is used as one of the pair of flat mirrors 110, the viewer can visually recognize the image and landscape of the object M reflected on the flat mirror 112 through the semi-transmissive flat mirror 111. The degree of freedom of the arrangement position of the flat mirror 110 is increased, and the image of the blind spot area D can be projected more easily and continuously with the image (landscape) that the viewer can directly visually recognize. In addition, since a camera that captures the blind spot area D and a display that displays the captured image are unnecessary, the cost is lower than when these are used. Further, by inserting the pair of plane mirrors 110 into the case body 120 in the direction along the plane while guiding them with the groove portions 121f, 121h, 122a, 122c, the assembly work of the pair of plane mirrors 110 is easy and workability. Therefore, it is possible to improve the accuracy of the mirror arrangement and to improve the flatness of the transflective surface and the reflective surface.

Further, the guide portion includes a press-fit portion for fixing the pair of flat mirrors 110 by press-fitting the peripheral edges of the pair of flat mirrors 110.
According to this, by fixing each of the pair of plane mirrors 110 by press-fitting, it is possible to suppress distortion of the semi-transmissive plane mirror 111 and display an image without distortion. In addition, the assembling work is easier and the workability is better than the case of using an adhesive or a double-sided tape.

Further, the case body 120 is divided into a plurality (the housing part 121 and the lid part 122) so as to be assembled in a direction along the plane of the pair of flat mirrors 110.
According to this, since the inside of the case body 120 is released in the direction along the plane of the pair of plane mirrors 110, the pair of plane mirrors 110 can be easily inserted and the assembly work is easy and the workability is good.

In addition, in the guide portion, all sides including the peripheral edges of the pair of plane mirrors 110 are inserted into the groove portions 121f, 121h, 122a, and 122c.
According to this, the pair of plane mirrors 110 can be arranged with higher accuracy.

  Next, a modification of the blind spot assisting device 100 according to the present embodiment will be described with reference to FIG. FIG. 7A is a front view showing the first guide part 121g and the third guide part 122b, and FIG. 7B is a plan view showing an overview of the blind spot assisting device 100. FIG. In FIG. 7B, only the portions necessary for explanation are shown, and the other portions are omitted.

  In the blind spot assisting device 100 according to the modification, the first guide part 121g and the third guide part 122b, which are part of the guide part, can rotate about the direction along the plane of the pair of plane mirrors 110 as the central axis. And an angle adjusting mechanism 130 that adjusts the angle between the pair of plane mirrors 110 by rotating the first guide part 121g and the third guide part 122b.

  The first guide portion 121g is provided with a shaft portion 121j along the plane of the pair of plane mirrors 110 on the lower surface thereof. For example, the shaft portion 121j is fitted into a hole (not shown) provided in the housing portion 121. As a result, the housing 121 is disposed so as to be rotatable about the shaft 121j as a central axis.

  The third guide portion 122b is provided with a shaft portion 122e along the plane of the pair of plane mirrors 110 on the upper surface thereof. For example, the shaft portion 122e is fitted into a hole (not shown) provided in the lid portion 122. Thereby, it arrange | positions at the cover part 122 so that it can rotate centering on the axial part 122e.

  The angle adjustment mechanism 130 includes an angle adjustment bolt 131 provided on the semi-transmissive reflective surface side of the semi-transmissive flat mirror 111 and an elastic member 132 provided on the viewer side of the semi-transmissive flat mirror 111. The angle adjustment bolt 131 is inserted into a female screw hole (not shown) formed in the housing 121 and comes into contact with the semi-transmissive flat mirror 111. The contact portion with the angle adjusting bolt 131 is provided in a portion that does not affect the viewing of the image of the blind spot area D. Further, the angle adjusting bolt may be in contact with the first guide part 121g or the third guide part 122b. The elastic member 132 is made of rubber, a spring, or the like, and generates an elastic force that presses the transflective flat mirror 111 against the angle adjusting bolt 131.

(Angle adjustment method)
The viewer manually rotates the angle adjustment bolt 131 clockwise and pushes the angle adjustment bolt 131 toward the transflective flat mirror 111 side to rotate the first guide part 121g around the shaft part 121j, and the third guide part. 122b to by rotating the shaft portion 122e in the axial, the semitransparent plane mirror 111 is rotated moved to open the view 2 side, semitransparent initial position the angle theta _M relative to the plane mirror 112 of the plane mirror 111 (e.g., a plane mirror 112) to a maximum angle θ _Mmax (determined by the dimensional design of the case body 120). Further, the viewer manually rotates the angle adjustment bolt 131 counterclockwise and pulls it out, so that the elastic member 132 rotates the transflective flat mirror 111 to the side opposite to the viewpoint 2 and moves it halfway. The angle θ _M of the transmission flat mirror 111 can be reduced from the maximum angle θ _Mmax to the initial position. Thereby, the viewer can adjust the angle θ _M of the semi-transmissive flat mirror 111 within the range of the maximum angle θ _Mmax from the initial position. As described in Japanese Patent Application No. 2014-118793, the present applicant It is possible to adjust the position of the image in which there is no deviation between the image reflected on the mirror 112 and the directly viewed front landscape.

  In addition, this invention is not limited by the said embodiment and drawing. It goes without saying that changes (including deletion of components) can be added to the embodiment and the drawings.

The guide part of the present invention does not need to have a continuous shape, and may be provided in the case body 120 by being divided into a plurality of parts. Further, the gap of the guide portion is not limited to the groove portions 121f, 121h, 122a, and 122c. The guide portion is configured by two plate-like members, and the gap is formed by providing a gap between the plate-like members. May be. Further, the press-fit portion provided in the guide portion does not need to have a continuous shape. For example, the press-fit portion may be configured by partially providing a plurality of pairs of protrusions in the gap of the guide portion.
Further, in the present embodiment, the case body 120 is divided into the housing part 121 and the lid part 122, but is not limited thereto. For example, the plurality of louvers 121e may be further divided into separate bodies. Further, for example, it may be divided into a substantially L-shaped first case and a second case as viewed from the front and assembled along the plane of the pair of plane mirrors 110. In this case, the guide portion is configured such that a part thereof is provided in each of the first and second cases.
Furthermore, when providing the transparent cover which closes the 2nd, 3rd opening part 121b, 121c in the blind spot auxiliary | assistance apparatus 100 of this embodiment, in order to insert a transparent cover in the case body 120, the 1st, 2nd guide part 121g 121i and third and fourth guide portions 122b and 122d may be provided.

  The blind spot assisting device 100 of the present embodiment is disposed on the right front pillar 50 as viewed from the driver's seat side of the vehicle 1, but a similar blind spot assisting device is also disposed on the left front pillar 60. Also good. Further, as an obstacle in the vehicle, it may be a blind spot assisting device that is arranged on a center pillar, a rear pillar, or the like in addition to the front pillar and displays an image of a blind spot area blocked by these.

Further, the present invention can be widely applied as a blind spot assisting device that projects an image of a blind spot area blocked by an obstacle in fields other than vehicles. For example, when the blind spot assisting device of the present invention is used in a house, a large area blind spot assisting device is attached to the ceiling and only the incident part is exposed to the outside from the wall or the like. Can also see the sunlight from the ceiling indoors. It is particularly suitable for densely populated houses and houses with circumstances where ordinary windows cannot be attached.
Also, for example, in a high-rise building such as a tourist facility, a blind spot auxiliary device with a large area is embedded under the floor of a high floor, and only the light incident part is exposed outdoors, so that the blind spot auxiliary device under the floor directly puts the scenery under the eyes You can feel and emphasize the height of the building. In order to obtain the same effect, conventionally, it was necessary to provide a space under the floor. However, the blind spot assisting device of the present invention is suitable because it can be easily arranged in an existing building.
In addition, as an example to be used for the wall surface, the blind spot assisting device of the present invention is arranged at the corner of the fence at an intersection where the fence is standing near the road and the line of sight is bad. Can quickly recognize the existence of, and contribute to the prevention of encounter accidents.
As described above, the blind spot assisting device of the present invention secures a space for a light incident portion in a blind spot area that is obstructed by an obstacle that has not been visible until now without requiring energy such as electric power. It can be seen as if the obstacles are seen through a wide range, and its use can be widely applied both indoors and outdoors, and it can obtain various effects such as health, safety or impression. .

  The present invention is suitable for a blind spot assisting device that projects an image of a blind spot area obstructed by an obstacle.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Viewpoint 100 Blind spot auxiliary | assistance apparatus 110 A pair of plane mirror (a pair of mirror)
111 Transflective flat mirror (semi-transmissive mirror)
111a base 111b extension 112 flat mirror (mirror)
112a Protruding part 120 Case body 121 Case part 121a First opening part 121b Second opening part 121c Third opening part 121d Fourth opening part 121e Louver 121f Groove part (gap)
121g First guide part (guide part)
121h Groove (gap)
121i Second guide part (guide part)
121j Shaft part 122 Lid part 122a Groove part (gap)
122b Third guide part (guide part)
122c Groove (gap)
122d Fourth guide part (guide part)
122e Shaft portion 130 Angle adjustment mechanism 131 Angle adjustment bolt 132 Elastic member

Claims (5)

A blind spot assisting device that projects an image of a blind spot area obstructed by an obstacle,
Arranged so that a semi-transmission mirror that receives light representing the image, is provided on the viewer side, reflects a part of the light, and transmits a part of the light, and a mirror that reflects the light to the semi-transmission mirror face each other. A pair of mirrors,
A case body that houses the pair of mirrors,
The pair of mirrors are inserted into the case body in a direction along the plane,
The blind spot assisting device, wherein the case body includes a guide portion having a gap into which a peripheral edge of each of the pair of mirrors is inserted.   2. The blind spot assisting device according to claim 1, wherein the guide portion includes a press-fitting portion that press-fits a peripheral edge of each of the pair of mirrors to fix the pair of mirrors.   The blind spot assisting device according to claim 1, wherein the case body is divided into a plurality of pieces so as to be assembled in a direction along a plane of the pair of mirrors.   2. The blind spot assisting device according to claim 1, wherein all the sides of the guide portion including the peripheral edges of the pair of mirrors are inserted into the gap. At least a part of the guide part is provided rotatably around a direction along the plane of the pair of mirrors as a central axis,
The blind spot assisting device according to claim 1, further comprising an angle adjusting mechanism that adjusts an angle between the pair of mirrors by rotating at least a part of the guide portion.

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