JPH026324Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an in-vehicle information display device used in a vehicle travel guidance system, etc., and in particular, an in-vehicle information display device that can enlarge the display using a display member such as a cathode ray tube as necessary. Regarding.

Recently, vehicle travel guidance systems have been developed. This system uses a microcomputer to calculate a driving route based on the car's driving signals obtained from rotation detectors installed on the car's wheels and direction detectors such as a gyro compass. Then, the driving route is displayed as a dot on the cathode ray tube of the in-vehicle information display device using a bright dot. A transparent sheet on which a road map is printed is fixed in front of a display member such as a cathode ray tube, so that the dot display and the road map can be superimposed and visually viewed.

Since the map shown on the in-vehicle information display has various scale dimensions, there are cases where it is desired to enlarge this display for visual inspection. However, simply equipping the display with a removable lens does not allow the lens to be removed and placed on a dart board or seat.
There is a risk that the lens will concentrate sunlight and cause the interior of the vehicle to burn.

The present invention was developed by focusing on the above-mentioned problems.
The lens can be installed as needed, and even if the lens is removed and left in the car,
It is an object of the present invention to provide an on-vehicle information display device that does not condense sunlight at all.

The present invention is equipped with a removable visor around a display member such as a cathode ray tube, a lens is attached to the visor, and the lens is biased by a spring in a direction along the inner surface of the visor. In addition, a locking member is provided to maintain the lens in a position covering the front of the display member only when the visor is attached around the front surface of the display member, and when the visor is removed from the front surface of the display member, the spring The force allows the lens to align with the inner surface of the visor.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view showing a visor-attached portion of an in-vehicle information display device according to the present invention.

Reference numeral 1 in the figure is the main body of the in-vehicle information display device. A cathode ray tube 2 is installed on the front surface of the main body 1 as a display member for displaying the vehicle travel route. A head case 3 is provided in front of the display surface of the cathode ray tube 2, and a slit 4 is formed between the head case 3 and the main body 1. The upper end of the slit 4 extends toward the rear of the main body 1. Further, a sheet fixing device is provided in the head case 3, so that when a transparent sheet on which a map is printed is inserted into the slit 4, this transparent sheet is fixed to the front surface of the cathode ray tube 2. A display window 3a is formed in the center of the front surface of the head case 3 for viewing the cathode ray tube 2 and the transparent sheet. In addition, various operation switches, operation dials 5a,
5b, 5d, and 5e are arranged.

Reference numeral 6 is a visor. This visor 6 is molded from resin. This visor 6
is removable from the head case 3, and
When installing this, insert the protrusion 6a provided at the rear upper end of the visor 6 into the display window 3a of the head case 3.
The rear part 6b of the visor 6 is fitted into a hole (not shown) in the upper inner surface of the display window 3a, and the rear part 6b of the visor 6 is press-fitted into the display window 3a to be fixed. When the visor 6 is attached to the front surface of the head case 3, the front end periphery 6c of the visor 6 covers the top and both sides of the display window 3a, preventing sunlight from directly hitting the cathode ray tube 2. External dimension L of lower end 6d of visor 6
is set slightly larger than the internal width of the display window 3a into which it is inserted. Therefore, when the rear portion 6b of the visor 6 is inserted into the display window 3a, the side end portion 6d is slightly curved upward as shown in FIG. Further, a pair of locking holes 6e are bored in the center of the side end portion 6d. Support holes 6f for attaching lenses 7 are bored in both sides of the visor 6. Furthermore, a pair of projections 6g for attaching the spring 8 are integrally formed at the rear of the lower surface of the upper plate of the visor 6. This protrusion 6g is shown in detail in FIG. 2 (view of the visor 6 from the rear). Similarly, visor 6
A pair of cushions 9 are bonded to the center of the lower surface of the upper plate. This cushion 9 is molded from rubber or elastic resin.

The lens 7 installed in the visor 6 is a convex lens molded from plastic material or a Fresnel lens. Support pins 7a are provided on both sides of the upper end of the lens 7, and are rotatably supported within the support hole 6f of the visor 6. A pair of protrusions 7 are provided at the lower end (free end) of the lens 7.
b is provided. This protrusion 7b is the visor 6
It is adapted to fit into a locking hole 6e on the lower end 6d of. Similarly, a notch 7c is formed at the center of the lower end of the lens 7, and pins 7d are provided on both sides of this notch 7c. A handle 10 for moving the lens 7 is provided in the notch 7c, and this handle 10
The pin 7d is inserted into support holes 10a formed at both ends of the lens 7, and the handle 10 is rotatable at the lower end of the lens 7. A pair of protrusions 7e are formed on the left end of the back surface of the lens 7, and a locking groove 7f is formed in the center thereof (see FIG. 3). One arm 8a of the spring 8 attached to the protrusion 6g in the visor 6 contacts the locking groove 7f, and the other arm 8b contacts the lower surface of the upper plate of the visor 6. The lens 7 is urged by the force of the spring 8 to always rotate forward (leftward in FIG. 1) so as to follow the inner surface of the upper plate of the visor 6. Also, a cushioning rubber 11 is provided around the front end 6c of the visor 6.
is installed. A groove 11a is formed at an appropriate depth in the rubber 11, and the groove 11a is inserted into the front end periphery 6c of the visor 6 and fixed with an adhesive.

Next, the operation and effects of the present invention with the above configuration will be explained.

The visor 6 is attached to the display window 3a only when necessary. That is, when driving at night, when the cathode ray tube 2 is not exposed to sunlight and the displayed information is clearly visible, and when there is no need to enlarge the displayed information, the visor 6 is removed from the head case 3. During daytime driving, when the cathode ray tube 2 is exposed to sunlight and it is difficult to confirm information, the visor 6 is attached to the display window 3a of the head case 3 to provide sun protection. The lens 7 is urged forward by the force of the spring 8 and is maintained in a position along the lower surface of the upper plate of the visor 6 (the state shown in FIG. 4). When the scale of the map on the sheet set in front of the cathode ray tube 2 is high and the displayed information seen through the display window 3a is too small, the handle 10 at the free end of the lens 7 is held and rotated downward. As described above, the lower end 6d of the visor 6 attached to the display window 3a is curved upward due to the difference in dimension L (FIG. 4). Therefore, when the lens 7 is rotated downward, the protrusion 7 on the free end of the lens 7
b engages with the locking hole 6e on the side end 6d, and the lens 7 is maintained in a position covering the front of the cathode ray tube 2. The information appearing on the display window 3a is magnified by the lens 7, making it easier to confirm.

Next, when the visor 6 is removed from the head case 3a while the lens 7 is covering the front of the cathode ray tube 2, the lower side end 6d that was curved inside the display window 3a will stretch due to its own elastic force. , returns to a straight state. As a result, the locking hole 6e on the side end 6d is disengaged from the protrusion 7b at the free end of the lens 7 (the state shown in FIG. 5). Then, the lens 7 is pushed forward by the force of the spring 8 and rotates forward and upward about the support pin 7a as a fulcrum, so that the lens 7 takes a position along the lower surface of the upper plate of the visor 6. Therefore, as shown in FIG. 6, even if sunlight shines into the vehicle interior when the removed visor 6 is left on the seat 12, the sun will be concentrated on the seat 12, resulting in an accident where the seat will be burnt. does not occur at all.

In the illustrated embodiment, a locking member on the side end 6d of the visor 6, which is curved when fitting into the display window 3a, is used as a locking member for maintaining the lens 7 in a posture covering the front of the display member 2. I used the stop hole 6e, but
Another example of this locking member is the head case 3.
A hook is provided on the lower surface of the display window 3a of the visor 6.
When the lens 7 is attached to the display window 3a, the protrusion 7b at the free end of the lens 7 may be engaged with this hook. Alternatively, this hook may be formed using a leaf spring or the like, and when the visor 6 is attached to the display window 3a, this hook will curve upward and appear at a position where it engages with the protrusion 7b of the lens, and the visor 6
When the lens 7 is removed, the hook may return to its original position and be disengaged from the protrusion 7b of the lens 7.

Further, in the illustrated embodiment, a cathode ray tube 2 is shown as a display member, but as other examples of this display member, an LED display device, a liquid crystal display device, etc. can be used. Further, the information such as a map is not limited to that printed on a transparent sheet, and for example, recorded information on a microfilm may be projected onto a screen of a display window.

As described above, according to the present invention, the following effects can be achieved.

(1) Since a visor can be attached around the front surface of the display member, the visor blocks sunlight during the day, making it easier to see the display on the display member.

(2) Install a lens inside the visor and, if necessary,
Since the front of the display member can be covered with a lens, when the information displayed by the display member is too small, this information can be enlarged and viewed.

(3) When the visor is removed from around the display component, the lens is unlocked and the spring aligns the lens with the inner surface of the visor, so when the visor is removed and left on a seat or dash board, , the lens concentrates sunlight so it won't burn the seats, etc.

(4) As stated in claim (2), the side end of the visor is curved and the locking hole provided on the side edge is used as a locking member for a lens lock. For example, the configuration of the locking member is simplified and the manufacturing cost is also reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is an exploded perspective view showing how the visor is installed.
The figure is a partial perspective view showing the visor viewed from the back side, Figure 3 is a perspective view showing the spring locking part on the back side of the lens, Figure 4 is a perspective view showing the visor attached to the main body, and Figure 5 is a perspective view showing the visor attached to the main body. The figure is a perspective view showing the visor immediately after it has been removed, and FIG. 6 is a perspective view showing the removed visor left on the seat. 1...Main body, 2...Display member (cathode ray tube),
3... Head case, 6... Visor, 6d...
Side end, 6e...Locking member (locking hole), 6f...
Lens support hole, 6g... Spring mounting protrusion, 7...
Lens, 7a...Support pin, 7b...Protrusion, 8...
…Spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A removable visor is provided around the display member that displays information, a lens is rotatably provided within the visor, and the lens is installed along the inner surface of the visor. When the visor is attached around the display member, the visor is in a position to lock the edge of the lens which has been rotated to cover the front of the display member against the force of the spring. An on-vehicle information display device further includes a locking member that is no longer located within the rotation range of the edge of the lens when the visor is removed from the periphery of the display member. (2) The locking member is a locking hole provided at the side end of the visor, and this side end is curved inward in a convex manner when the visor is attached around the display member; The in-vehicle information display device according to claim 1, wherein in this curved state, a protrusion provided at the free end of the lens is fitted into the locking hole.