JPH0423245Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The field of vision frame of the invention is a teaching tool for vehicle drivers, especially motorcycle drivers, and the visual field becomes narrower as the speed increases. This is the easiest way to learn this.

(2) Conventional technology Until today, I have never seen or heard of this type of teaching tool.

(3) Problems that the invention is trying to solve The width of the visual field is expressed as an angle with respect to the line of sight, but the widest part of a normal visual field is said to be approximately 100 degrees outward and downward to the right for the right eye. ing. In addition, in the fields of traffic science and ergonomics, the field of vision when stopped is approximately 200 degrees, and as the speed increases, the field of view becomes narrower and narrower, making it difficult to see things. It has been shown that as the point of fixation moves further forward, it becomes difficult to see nearby objects, and only the areas near the point of interest that are far away can be seen clearly. Regarding the correlation between speed and field of view, the following figures have been published: Speed (per hour) Stationary 40Km 70Km 100Km Field of view 200° 100° 65° 40°. Therefore, we developed a device that has a blank space in the shape of a pair of glasses lenses, and the viewing angle differs depending on the size of the blank space, that is, several long, thin flat plates with the width of the face that are placed in front of the driver's eyes. The purpose of this invention is to help car drivers recognize and understand the comparison and relationship between field of view and speed by overlapping each plate alternately, thereby preventing traffic accidents and contributing to traffic safety. It is.

(4) Means for solving the problem The visual field frame of the present invention will be explained based on drawings. Figure 1 A is a front view of the main body with the ear hook of the viewing frame unfolded, Figure 1 B to D are front views of the attached parts of the viewing frame and flat plates 2 to 4, and Figure 2 is the angle of field of view with the viewing frame. (Action, effect) is an explanatory diagram. First of all, as shown in Fig. 1, the visual field frame of the present invention consists of an elongated flat plate 1 with the width of the face that is placed in front of the driver's eyes, and the left and right sides of the flat plate 1 are connected to each other and bent inward. It consists of a main body consisting of a pair of ear hooks 5, and attached parts of flat plates 2 to 4 (Fig. , the flat plates 1 to 4 have an upper edge in contact with the forehead and a nose hook recess in the lower edge, each of which has a pair of eyeglass lens-shaped cutout blanks on the left and right sides, and an ear hook 5. is wider than the width of the upper and lower eyelids. The material of the flat plates 1 to 4 may be cardboard, thin plywood, synthetic resin, or the like. Flat plate 2~
The stops P 4 may be bent protrusions that are hooked onto the flat plate 1 one by one, or, if each of them can be rotated, a stop that fixes the flat plates 2 to 4 to the flat plate 1 at the same time. There is no problem even if it is a tool. The blank spaces in each of plates 1 to 4 are cut out so that the visual field angle of the right eye is 65°, 50°, 32.5°, and 20° to the right temporal side, and the visual field angle of the left eye is cut out to the left temporal side, respectively. Cut out at 65°, 50°, 32.5°, and 20°.

(5) Effect When the driver uses the field of view frame,
Recognize and master the wideness and narrowness of the field of view at speeds of 40km, 70km, and 100km/h.

(6) Example As shown in Figure 2, dolls are drawn on a wall approximately 4 m wide, each in a 50 cm square at approximately eye level. A driver standing approximately 1m from a wall can use a viewing frame to obtain a field of view of 130°, 100°,
At 65° and 40°, the doll's face is 8, 6, 4, respectively.
2 Check. You will be able to recognize and experience how the field of view becomes narrower as the speed increases. Furthermore, even at speeds of about 30 km/h, the field of view has already become narrower by about 130 degrees. It is effective to write the viewing angle and speed on the flat plates 1 to 4, respectively.

(7) Effects of the invention Utilizing the research results of traffic science and ergonomics, anyone can recognize and master the contrast and relationship between the speed of a car and the width and narrowness of the viewing angle using extremely simple teaching tools. Helps improve traffic safety by preventing speeding and causing traffic accidents.

[Brief explanation of the drawing]

FIG. 1A is a front view of the viewing frame main body with the ear hooks unfolded, FIGS. 1B to D are front views of the viewing frame attachments, and FIG. 1...Flat plate of main body, 2-4...Flat plate of attached part,
5... Ear hook part, P... Stopper.

Claims (1)

[Scope of claim for utility model registration] (1) An elongated flat plate 1 with the width of the face that is placed in front of the driver's eyes, and a pair of ear hooks connected to the left and right sides of the flat plate 1 and bent inward. 5, and attached parts of plates 2 to 4, which are overlapped and locked to the plate 1 by a stopper P, the upper part touches the forehead, and the lower edge has a nose. Each of the flat plates 1 to 4 provided with the hanging recesses is provided with a pair of left and right cutout blank parts in the shape of eyeglass lenses of different sizes, and the width of the ear hook part 5 is wider than the width of the upper and lower eyelids. Wide viewing frame. (2) Each blank space provided on flat plates 1 to 4 is such that the visual field angle of the right eye is 65° toward the right temporal side,
Claim 1 of the utility model registration, which is cut out at 50°, 32.5°, and 20°, and the field of view of the left eye is cut out at 65°, 50°, 32.5°, and 20° toward the left temporal side, respectively. Viewing frame as described in .