CN100548781C - Be equipped with the motor bike of navigationsystem - Google Patents

Abstract

Make navigationsystem be applicable to motor scooter simply and easily, and when non-working condition, the read out instrument that is fitted in the navigationsystem on the motor scooter can be bounced back.Box is configured on the motor scooter along the lower edge of instrument carrier panel, is adorning a detouchable PDA in the box.PDA possesses the internal memory and the read-out that are used for storing electronic map information and road information etc., and provides based on the navigation information from GPS sensor orientation take off data.A window and a switch that matches with the read-out that is contained in the PDA in the box is equipped with on the box.Box can be from the surface that makes its read-out that is contained in the PDA in the box forwards its retraction position to along the use position of the extension direction of instrument carrier panel.

Description

motorcycle with navigation system

This patent application is a divisional application of the invention application whose application number is 00126845.7, the application date is September 6, 2000, and the invention title is "motorcycle equipped with navigation system".

technical field

The present invention relates to a motorcycle equipped with a navigation system, especially the motorcycle equipped with a navigation system using a personal digital assistance device (personal digital assistance, referred to as PDA hereinafter).

Background technique

Navigation systems are well known for use in vehicles, which combine map information with position information measured by satellite radio waves from a position finder (GPS) to display the position of the vehicle on a map in order to guide the vehicle to a destination. Navigation systems generally used for vehicles are mainly used on four-wheeled vehicles. However, in recent years, studies have begun to equip a motorcycle with a navigation system. For example, in the motorcycle equipped with a navigation system disclosed in Japanese Patent Laid-Open Publication No. Hei 9-95276, the installation position of the direction sensor of the navigation system is considered for the convenience of receiving radio waves from satellites. Moreover, on the navigation system disclosed in this gazette, the display device is equipped with a sun visor and an openable cover.

Conventional navigation systems have several problems in attempting to fit motorcycles. First, because motorcycles are generally smaller than four-wheeled vehicles, the space available for navigation systems is strictly limited. Second, the navigation system equipped on the motorcycle is exposed to the natural environment.

In particular, conventional navigation systems are too large to be used on motorcycles. Also, not enough attention was paid to where and how the navigation system was installed. As a result, the visibility of the display screen of the navigation system must be further improved, and at the same time, the system must also be dustproof and waterproof.

Contents of the invention

The object of the present invention is to provide a motorcycle equipped with a navigation system which can solve the above-mentioned disadvantages and has improved practicability.

In order to achieve the above object, the first embodiment of the present invention has the following features: On the one hand, the navigation system includes a GPS sensor for receiving satellite radio waves and outputting azimuth measurement data and a box capable of accommodating a PDA and a system Controller, the PDA can provide navigation information based on the azimuth measurement data through the display screen, the system controller transmits the azimuth measurement data to the PDA installed in the box and makes the PDA complete the navigation work; on the other hand, the box includes a convenient PDA A removable cover for insertion and removal and a connector to the input/output terminals of the PDA and a window through which the display screen on the PDA located in the box can be seen.

In addition, the first embodiment of the present invention has the following features: a switch provided on the above box for inputting control commands to the PDA. The first embodiment of the present invention also has the following features: on the one hand, this PDA includes a memory for collecting and storing required map information from the outside; secondly, this PDA is connected with the system controller inside the above-mentioned box; in addition , in order to make the box easy to rotate up and down around a certain pivot, it is generally installed in the middle of the handlebar, and its shape is convenient for changing positions between the use position and the retraction position. The position of the box when it is in the use position The extension is substantially parallel to the plate surface of the motorcycle instrument panel, and when it is in the retracted position, the box follows the car body; moreover, the box can be plugged and unbolted with the key of the car.

According to the features described above, navigation information based on the orientation data detected by the GPS sensor can be displayed using the function of this PDA. Moreover, since this PDA is used in a box, it is pre-installed with dustproof and waterproof functions. In addition, because the PDA is detachably installed on the motorcycle by means of the box, when it is not used for navigation, it can be taken off from the motorcycle to avoid being stolen or used for non-navigation purposes.

According to the second embodiment of the present invention used to achieve the above object, the first feature of this example is: on the one hand, it includes a GPS sensor for receiving satellite radio waves and outputting azimuth measurement data and a vehicle body A vehicle instrument panel on the front surface of the front of the vehicle and a display device for displaying navigation information based on azimuth measurement data on its display screen; Switch between the two positions. In the first position of the display device, its display screen is generally parallel to the panel surface of the motorcycle dashboard. In the second position of the display device, its display screen retracts to the panel surface of the motorcycle dashboard. at a predetermined angle.

Secondly, the second feature of the second embodiment of the present invention is: on the one hand, the display device is placed on the dashboard; on the other hand, the display device is supported on the vehicle body and can be positioned between the first position and the second position. When the posture is changed during the first position, the display screen of the display device can rise along the instrument panel, and when in the second position, the display screen can face down along the upper surface of the instrument panel.

In addition, the third feature of the second embodiment of the present invention is that, on the one hand, the display device includes a box capable of accommodating a PDA capable of providing navigation information based on azimuth measurement data through a display screen, and a system controller, The system controller forwards the azimuth measurement data to the PDA installed in the box and enables it to perform navigation work; on the other hand, the box is supported on the vehicle body and can change the attitude between the first position and the second position .

According to the first and second features described above, since the display device capable of displaying the navigation information extends along the panel surface in its first position, the driver's perception of the navigation information is similar to viewing the dashboard. Furthermore, since in its second position the display device is rotated to a predetermined angle to the instrument panel, the area near the instrument panel is simplified except for collecting navigation information.

According to a third feature, the main part of the navigation information in the display device can be generated by the PDA. In addition, the case for accommodating the PDA is supported on the vehicle body and facilitates changing postures between the first position and the second position. In particular, the navigation information based on the azimuth measurement data detected by the GPS sensor can be displayed by utilizing the function of the PDA. Because the PDA can be used in a box, it has dustproof and waterproof functions in advance. In addition, since the PDA is detachably installed on the motorcycle by means of the case, when it is not used for navigation, it can be taken off the motorcycle to avoid being stolen or used for non-navigation purposes.

It will be apparent from the detailed description given below that the present invention has a wider scope of applicability. However, from these detailed descriptions, it will be obvious to those skilled in the art that various changes and modifications can be made within the spirit and scope of the invention, so these detailed descriptions and these specific and designated as The preferred embodiments of the present invention are given by way of illustration only, and it should be understood.

Description of drawings

The present invention can be more fully understood with reference to the detailed description and accompanying drawings given below, which are provided in an illustrative manner only and therefore have no limiting effect on the present invention, wherein:

FIG. 1 is a perspective view showing the instrument panel and related components of a scooter according to an embodiment of the present invention;

Fig. 2 is a side front view of a scooter that can use the present invention;

Fig. 3 is the perspective view of the front part of the scooter that can use the present invention;

Fig. 4 is the system structural block diagram of navigation system;

Fig. 5 is a perspective view showing the front surface of a scooter's instrument panel and related components according to an embodiment of the present invention;

Fig. 6 is a perspective view showing the main part of the instrument panel and related components of a scooter according to an embodiment of the present invention;

Fig. 7 is the perspective view of the box accommodating the PDA when its cover is in an open state;

Fig. 8 is a block diagram of state transition of the navigation system;

Fig. 9 is the display screen of the example 1 shown on the PDA display screen;

Fig. 10 is the display screen of the example 2 shown on the PDA display screen;

Fig. 11 is the display screen of the example 3 shown on the PDA display screen;

Fig. 12 is the display screen of the example 4 shown on the PDA display screen;

Fig. 13 is the display screen of the example 5 shown on the PDA display screen;

Fig. 14 is the display screen of the example 6 shown on the PDA display screen;

Fig. 15 is a side front view showing that the box is equipped with the front part of the scooter above the instrument panel;

Fig. 16 is a partially enlarged view of main parts in Fig. 15;

Figure 17 is a partially enlarged view of the main parts of the scooter when the box is put away;

Fig. 18 is the three-dimensional unfolded view of the modified box for accommodating PDA;

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 2 is a side front view of a motorcycle equipped with a navigation system of the present invention, and FIG. 3 is a perspective view of the main parts of the motorcycle. A low-seat motorcycle 1 (hereinafter referred to as a low-seat motorcycle) has a double-saddle-type vehicle body main frame 2, and the vehicle frame is developed along the front-rear direction of the vehicle body. Head pipe 3 is installed on the front end of car body main frame 2, and front wheel 5 is installed on the fork place of front fork 4, and front fork 4 stretches down from head pipe 3. Front fender 6 is covered on the top of front wheel 5. Handlebar 7 is fixed on the top of front fork 4, and the handlebar cover plate 33 that is divided into front and rear two parts is covered in the front and back of handlebar 7.

Transparent windshield 34 is installed on the handlebar cover 33 by a bracket (not shown), and windshield trim 35 is installed on the lower part of windshield 34 fronts as a cover element. A box (hereinafter referred to as box) 100 capable of holding a PDA (hereinafter referred to as box) 100 is fitted on the handlebar cover 33, and this box can hold a PDA used as a navigation system (will be described in detail below). The box 100 is supported in such a way that it can swing in the direction indicated by the arrow NA in the figure.

Fuel tank 8, radiator water tank 9, radiator 10 are equipped with in a saddle-shaped space surrounded by the pipe frame of car body main frame 2. A power unit 12 equipped with a water-cooled engine 11 at its front is provided in a rearward saddle-shaped space. The front half of power unit 12 is supported by link mechanism 13 suspension, and its second half is suspended and supported by tail shock absorber 14, and it is installed to be convenient to it and swing up and down on car body main frame 2 like this. Rear wheel 15 is installed on the rear portion of power unit 12, and car cover plate 17 is covered on the car body main frame 2, and vehicle seat 16 is arranged on the top of car body main frame 2 rear sections.

The front portion of the car cover 17 is made up of a front cover 21 and an inner cover 22, the front cover 21 covers the front of the head pipe 3 and the top of the front wheel 5, and the inner cover 22 covers the front cover 21 rear . A pair of footboards 23 extend backward from the inner cover plate 22, the driver's both feet are just placed on the footboards 23, and a pair of floor skirts 24 stretch out from the outer edges of the footboards 23 to the bottom. The bottom cover 25 covers between the bottoms of the skirts 24 on both sides, and the core cover 26 extends backward from the inner cover 22 to cover the middle part of the main frame 2 of the car body longitudinally. The vehicle side cover plate 27 extends backward from the vehicle core cover plate 26 to cover two opposite sides of the rear section of the vehicle body main frame 2 . A pair of left and right low side covers 28 extend downward from the outer edges of the vehicle side covers 27 . From the low side cover plate 28 to the rear, the tail center cover plate 29 covers the lower part of the tail end of the main frame of the car body 2 . Starting from the top of the tail center cover plate 29, the upper tail cover plate 30 covers the top of the car body main frame 2 tail end.

A head lamp 41 and a turn signal lamp 42 are mounted on the front cover 21 . Also, a GPS sensor 110 for receiving GPS satellite radio waves for a navigation system and outputting azimuth measurement data and a system controller MPU 111 for controlling the navigation system are disposed on the front cover 21. It should be noted that the installation position of the GPS sensor 110 is not limited to only the head of the vehicle body, it can also be installed (see character 110a) in a certain position like the rear end of the vehicle body, and this position will not be driven Personnel cover, for example, the upper tailgate 30 places. A pair of air inlets 35a, 35a are opened on the windshield decoration 35 . Wind flowing along the front of the front panel 21 when the vehicle is moving forward is introduced into the air inlets 35a, 35a.

A fuel filler cap 43 and a spark plug inspection cap 44 are provided at corresponding positions of the car core cover 26 . The main leg 45 is disposed at the bottom of the vehicle body, and the air filter 46 is disposed on the inner side of the low side cover 28 . In addition, a rear armrest 47, a tail light 48, and a rear fender 49 are arranged at the rear of the vehicle body.

Figure 4 is a system block diagram of the navigation system. The system controller MPU 111 as the management navigation work is the centralized point of other parts, and the GPS sensor 110 and the PDA 200 contained in the box 100 are all connected to it. It should be noted that since PDAs have functions such as managing personal schedules, allowing pen input on the display screen, making inquiries among a large amount of information stored therein such as dictionaries and manuals, etc. etc., thus being famous as a portable information device suitable for personal use. By storing and querying map information, this embodiment makes these functions as navigation functions as possible. Equally, box 100 is equipped with a switch 102, and this switch is used for the display screen of switch PDA 200 or scrolls the display picture of PDA 200 display screen, to zoom out or enlarge map. The switch 102 is also connected to the MPU 111 . The MPU 111 is powered by a battery 112 carried on board. And PDA 200 inside is equipped with a battery, when it is connected to and used together with MPU 111, it can be powered by battery 112 by MPU 111 however.

The PDA 200 has a memory capable of storing travel data and a display screen, and provides navigation information consistent with the azimuth measurement data provided by the GPS sensor and the control signals sent by the MPU 111 to complete the navigation work. Travel data includes electronic map information and route information to the destination. For example, information obtained through a network such as the Internet and electronic map information can be used as a basis for forming travel data using a personal computer. Taking the destination to be reached as input information, travel route information can be generated. Once the route is determined, according to the algorithm drawn up in advance, the stop points along the route such as the main intersections on the route can be determined. The travel data may be entered from a personal computer, or converted from information previously stored in a read-only memory (ROM) or the like.

The CPU 111 sends a control signal c1 to the GPS sensor 110, and the GPS sensor 110 receives GPS satellite radio waves according to the control signal c1. The GPS sensor 110 sends azimuth measurement data d1 based on GPS satellite radio waves to the MPU 111. The MPU 111 analyzes the azimuth measurement data d1 and the command signal d2 from the switch 102, and then sends the control signal c2 and the azimuth measurement data d1 to the PDA 200. The PDA 200 is started by the control signal c2, runs the preset program and uses the azimuth measurement data d1, and displays the navigation information on the display screen.

Next, the installation manner of the case 100 for accommodating the above-mentioned PDA 200 will be described. Fig. 1 is a side perspective view of the front part of a motor scooter on which box 100 is housed, Fig. 5 is a perspective view of the front surface of this motor scooter, and Fig. 6 shows that the PDA 200 is moved (to) non- A perspective view of the front face of this scooter using bits. In these figures, the same reference numerals as in FIG. 2 designate the same parts. It should be noted that the state shown in FIGS. 1 , 5 and 6 has the wind deflector 34 removed. The instrument panel 50 is integrated with the handlebar cover 33 . The speedometer panel 51 is disposed at the center of the instrument panel 50 , the fuel gauge 52 is disposed on the left side of the instrument panel 50 , and the water temperature gauge 53 is disposed on the right side of the instrument panel 50 .

The emergency switch 54 is arranged on the upper part of the front surface near the right side of the instrument panel 50, the start switch 55 is arranged on the corresponding lower part, and the cut-off switch 56 is arranged on the corresponding upper side. In addition, the steering flashing signal switch 57 is arranged on the upper part of the front surface near the left side of the instrument panel 50, the horn switch 58 is arranged on the corresponding lower part, and the strong/weak beam switch 59 is arranged on the corresponding upper side.

The box 100 is installed on the lower edge of the instrument panel 50 . The size and shape of the case 100 is determined by a PDA with a memory for storing map information for navigation and a display screen incorporated in the case. The window 101 is equipped with a transparent glass plate or transparent polypropylene plate or the like, so that the display screen of the PDA200 packed in the box 100 can be seen through it. A switch 102 is provided on the box 100 . What is used as switch 102, as indicated by the arrow mark among Fig. 5, is a switch that can be pressed to the left, right, upper and lower sides, click it to the left or right to switch the PDA 200 display screen, and tap it up or down to zoom in or out on the map, etc. The front side 103 of the box 100, on which a window 101 and a switch 102 are provided, is made in the shape of a lid. Open the cover 103 to take out or insert the PDA. A knob 104 is provided on the cover 103, and the cover 103 can be latched and unlatched by rotating it. For safety reasons, it is best to rely on the engine key to turn the knob 104 to latch and unlatch it.

The box 100 has a pair of trunnions 105 protruding from the left and right sides, respectively, and they are supported by bearings respectively integrated with the handlebar cover 33 (not shown). When the navigation system is in use, the box 100 is lifted or bounced to a certain position (i.e. the first position) by an elastic element (not shown in the figure), at this moment the display screen of the PDA is basically aligned with the instrument panel 50, as Figures 1, 2 and 5 show. On the other hand, when the navigation system is in the non-use state, the box 100 is pressed to retract to a certain position (i.e. the second position), at this moment the display screen of the PDA, i.e. the window 101 is substantially in a vertical plane . It is preferable to have an anti-swing device, such as a magnetic catch, which is fixed on the back of the box 100 and the handlebar cover 33 so that the box 100 can be fixed on the handlebar cover 33 in the retracted position.

Preferably, each trunnion 105 is provided with a swivel-type damper so that they It will act as a buffer to the above-mentioned elastic elements. This is because the case 100 can be smoothly rotated, the PDA is not affected by the vibration of the vehicle, and the display screen is prevented from vibrating. An oil damper with a built-in closed oil bag can be used as a circumferential damper. Its damping effect is only effective for the movement of the box towards the first position, but not for the movement from the first position towards the second position. Accordingly, when the display screen of the GPS, that is, the display screen of the PDA, is to be viewed, the display screen can be smoothly turned from its retracted position; on the contrary, when the display screen is to be retracted, it can be retracted quickly.

FIG. 7 is a perspective view of the box 100 with the lid 103 opened. Transponder 107 is configured in the box 100, and transponder 107 is equipped with a multi-pole connector 106 that can be coupled with the input/output terminal of PDA 200. The repeater 107 forwards the signal from the connector 106 to the MPU 111 and also forwards the signal from the switch 102 to the MPU 111 through the cable 108. By means of the joint 106, the PDA 200 can be detachably contained in the case 100.

Accordingly, once the scooter is started, the PDA 200 can be connected to the joint 106 to form a navigation system. Moreover, when the driver intends to leave the scooter, the PDA 200 can be unloaded from the joint 106 again, taken out from the box 100, and it can be taken away from the navigation system alone. Because the PDA 200 is packed into the box 100 in this way, the PDA 200 can be removed from the scooter at any time. As a result, it is also more convenient from the standpoint of preventing theft. Likewise, this also facilitates the use of the PDA 200 as a non-navigation device, but as a multifunctional information device, for example, as an address book or dictionary. Furthermore, because the connector connected to the PDA is housed in the box 100, rain, wind, dust, etc., cannot affect it.

Referring to the state transition block diagram 8 and the display screens shown in FIGS. 9 to 14 , the state transition process of the navigation system will be described. In FIG. 8, the letter A indicates a left click of the switch 102, and the letter B indicates a right click. Referring to FIG. 8, in state S0, the navigation system waits to receive data. When the data is already in the memory of PDA 200 or when receiving the data has ended normally, the state of the navigation system promptly goes to state S1. In state S1, the navigation system again waits for data to be received and for a start command. In the states S0 and S1, the header picture P1 shown in FIG. 9 is displayed on the display screen.

If the switch 102 is clicked to the left in state S1, the state of the navigation system will go to state S2. In state S2, a navigation screen with arrow marks is displayed (see FIG. 10 ). On the screen with arrow marks, the arrow mark N1 indicating the direction of the parking spot, the circle mark N2 representing the parking spot, the title N3 of the parking spot, the large circle distance N4 to the next parking spot (along the surface of the earth) , and an image N5 of a bar graph representing the approach to the next parking point distance N4 is displayed on the screen.

If the switch 102 is clicked to the left in state S2, the state of the navigation system will go to state S3. In state S3, a block diagram navigation picture is displayed on the display screen. On this block diagram navigation screen, the arrow body is facing the parking spot, the arrow pointing to the size of the arrow mark N6 of the car advancing direction is bigger, and the arrow mark N7 of a small size points to the direction of the parking spot. If the switch 102 is clicked to the left in state S3, the state of the navigation system will go to state S4, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S2. In state S4, the navigation map picture will be displayed on the screen. In state S4, the map is fixed.

If the switch 102 is clicked to the left at state S4, the state of the navigation system will go to state S5, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S3. In state S5, based on the display in state S4, a navigation map picture and travel locations are displayed on the screen (refer to FIG. 12 ). The arrow marks in the figure represent the location and direction of travel of the motorcycle, and the travel location is represented by a dot N9. A large amount of location information is pointed out in Figure 12, where L1 is a restaurant, L2 is the Musashino route, L3 is Mihara Center, L4 is a convenience store, L5 is Mihara 1, L6 is a gas station, L7 is the fifteenth elementary school, L8 It is Mihara 5, L8 is Hello work, L9 is Honda Giken Asaka, L10 is Toppan Printing, L11 is Mizonuma, L13 is Mizo, L14 is NissanPrince, L15 is Izumi Filtration Factory, L15 is Izumi 2, L16 is Ohki ShindoKogyo.

If the switch 102 is clicked to the left in state S5, the state of the navigation system will go to state S6, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S4. In state S6, only travel location information is displayed on the navigation map screen, but no map information.

If the switch 102 is clicked to the left at state S6, the state of the navigation system will go to state S7, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S5. In state S7, on the navigation map screen displayed on the screen, the displayed position of the motorcycle is fixed. Therefore, when the motorcycle is shown moving, the map on the navigation screen will move accordingly.

If the switch 102 is clicked to the left in state S7, the state of the navigation system will go to state S8, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S6. When in state S8, travel locations are added to the navigation map screen displayed on the screen, and the displayed position of the motorcycle is fixed.

If the switch 102 is clicked to the left in state S8, the state of the navigation system will go to state S9, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S7. When in state S9, there is no map on the navigation map screen displayed on the screen, leaving the travel location information, and the display position of the motorcycle is still fixed.

If the switch 102 is clicked to the left in state S9, the state of the navigation system will go to state S10, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S8. In state S10, the satellite layout is displayed (see FIG. 13). In FIG. 13, the satellite N10 being used, the satellite N11 being in standby, and the satellite N12 being searched for are displayed on the screen together with their azimuths.

If the switch 102 is clicked to the left in state S10, the state of the navigation system will go to state S11, but if the switch 102 is clicked to the right, the state of the navigation system will return to state S9. In state S11, the latitude and longitude information indicating the location of the motorcycle is displayed on the screen (see FIG. 14). On this display screen, the vehicle's driving speed, latitude and longitude orientation, and driving direction are all displayed on the screen.

If switch 102 is clicked to the left in state S11, then the state of the navigation system will return to state S2; if switch 102 is clicked to the right in state S2, the state of the navigation system will skip states S3 to S10 and go directly to state S11.

Although the state transition block diagram described above is an example of a navigation system transitioning state with the operation on the switch 102, without pressing the switch 102, the position change of the motorcycle relative to the parking spot can cause the navigation screen from the arrow mark To transition between block diagram navigation screens. For example, far away from the parking spot 400 meters, the arrow mark navigation picture is displayed on the screen all the time, and when arriving at the position 400 meters away from the parking spot, the screen display just switches from the arrow mark navigation picture to the block diagram navigation picture. Further, when the motorcycle passes the parking spot and leaves 50 meters away, or when the motorcycle does not directly pass the intersection and moves away from the intersection, the target of the parking spot is converted, and the screen displays the navigation from the block diagram The screen switches to the arrow mark navigation screen. Going one step further, when the motorcycle deviates from the preset travel route, the parking point will be automatically updated.

Next, some modifications of the embodiment will be described. Although, in the embodiment described above, the box 100 with the PDA 200 inside it is installed along the lower edge of the instrument panel 50, the installation position of the box 100 is not limited to this position, it can be installed on the instrument panel top of the board. Fig. 15 is a side front view of the front part of the scooter, showing that the box 100 is placed on the upper part of the instrument panel, and Fig. 16 is a partially enlarged view of the main part in Fig. 15 . And Fig. 17 is a partial view of the box 100 after being packed.

Upper plate 60 covers the top of instrument panel 50 as a part of cover plate 61, and it is supported on the cover plate 61 by hinge 62, and is convenient to rotate. The upper edge of the box 100 of the PDA 200 is housed is connected together with one side of the upper plate 60 by the hinge 63, that is, the other side of the upper plate 60 that is supported by the hinge 62. In addition, a pair of slide blocks 65 are equipped at opposite ends of the lower edge of the box 100, and the slide blocks 65 are fitted on a pair of guide rails 64 (only one is shown) installed on the left and right sides of the car body respectively, and can slide.

By virtue of the structure described above, if the upper plate 60 is lifted from the state shown in FIG. fit together, so it is also lifted by the upper plate 60. At the same time, by means of the slide block 65, the lower edge of the box 100 slides on the guide rail 64, and is guided to the end of the guide rail 64 (the end towards the rear of the vehicle body). As a result, as shown in Figures 15 and 16, the box 100 together with the display screen of the PDA 200 is lifted toward the direction facing the driver until the display screen of the PDA is substantially parallel to the instrument surface of the instrument panel 50, thus entering a viewing angle. Unique display status. In addition, if you push the box 100 near the lower edge with your fingers, and then press the upper plate 60 from the state shown in Figures 15 and 16, the box 100 will be received in the cover plate 61, and in this state, as As shown in Fig. 17, the display screen of the PDA is facing downward.

Although, in the foregoing embodiments, after the hinged lid 103 is opened, the PDA 200 can be inserted into the case 100 or taken out from the case 100, the structure of the case 100 is not limited thereto. FIG. 18 is a perspective view of a modified case 100 . One end of the box 100A is provided with an opening 66 through which the PDA 200 can be taken out or inserted, and the cover 67 is fitted on the opening 66. On the box 100A, there is a window 101, through which the PDA display screen packed in the box 100A can be watched, and there is also a switch 102 and a joint connected with the terminal of the PDA 200, etc., their assembly mode Similar to the embodiment shown in FIG. 7 .

After lid 67 is opened, pass opening 66, PDA 200 is inserted in the box 100A, then lid 67 is fitted in opening 66, thereby box 100A is closed, and here, PDA200 is allocated in the navigation system and used together for navigation. On the other hand, when the PDA 200 equipped with the navigation system is no longer used, the cover 67 is removed to open the opening 66, and the PDA 200 can be taken out from the box 100A.

It should be noted that it would be better to add some filler or sealing wax to the mating surfaces between the lid 103 and the box 100, and the lid 67 and the box 100A for waterproof and dustproof. The cassettes 100 and 100A mentioned above are described with reference to FIGS. 7 and 18 .

Obviously, according to the foregoing description of the first embodiment of the present invention, the PDA used for storing data and as a display tool capable of providing navigation information is fitted on the motorcycle in a detachable manner, and only necessary Map information is acquired from the outside and stored in the PDA. In addition, by packing the PDA into a specific case, it is easy to make it waterproof and dustproof. This is more suitable for using the navigation system on motorcycles. Also, according to the first embodiment of the invention, when the navigation system is not in use, it can remain contained in this box. In addition, since the navigation system can be latched, the navigation system of the present invention is advantageously mounted on a vehicle such as a motorcycle, which is small in size and whose body is exposed to the natural environment.

Apparently, according to the above description of the second embodiment of the present invention, when the navigation system is in use, the display screen of the display device is flush with the panel surface, so that it is convenient to view the navigation information displayed by the display device. On the other hand, when the navigation system is not in use, the display screen of the display device is set back to a position at a predetermined angle to the surface of the instrument panel, with the result that the area around the surface of the instrument panel is simplified.

According to the second embodiment of the present invention, the display screen can rotate smoothly through the action of the damper, but the retraction of the display screen can be very rapid. In addition, since the display unit is detachably attached, the navigation system can be used as a portable navigation unit. However, the box can be used as a glove compartment when the navigator is not in use.

Also, displaying navigation information at this place on the handlebar can make effective use of the limited space around the handlebar and facilitate verification of information displayed on vehicle instrumentation and navigation systems. In addition, when the navigation is not in use, the box is rotated until it is aligned with the vehicle body, so, with a simple movement, the navigation display screen can be stowed and kept out of the way. In addition, since a PDA used for storing map information and a display tool can be housed in this case, the PDA can be effectively protected from water or dust.

Having thus described the invention, it will be apparent that similar devices may differ from the present invention in many respects. Such differences are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications of the invention as are obvious to one skilled in the art are intended to be embraced within the scope of the following claims.

Claims (9)

1. A motorcycle equipped with a navigation system, having: A GPS sensor for receiving radio waves from GPS satellites and outputting azimuth measurements; an instrument panel disposed on the front surface of the vehicle body; A display device for displaying on its display screen navigation information based on azimuth measurement data, said display device being supported on said vehicle body and facilitating a pivotal movement between its first position and a second position, in its first In the first position, the display screen of the above-mentioned display device is basically parallel to the panel surface of the above-mentioned instrument panel, and in its second position, the above-mentioned display screen retracts and forms a predetermined angle with the instrument panel, Also, the above-mentioned display device has a box and a system controller, the box can house a PDA capable of providing navigation information based on the azimuth measurement data using the above-mentioned display screen, and the system controller forwards the azimuth measurement to the PDA housed in the above-mentioned box Data and make the PDA perform the navigation work; the above-mentioned box is supported on the above-mentioned car body and is convenient for changing attitude between the first position and the second position. 2. The motorcycle equipped with a navigation system as described in claim 1, further comprising: a pivot for supporting the above-mentioned display device to rotate on the above-mentioned vehicle body; a resilient element for biasing the display device from its second position to its first position; Circumferential dampers for applying resistance to the aforementioned elastic elements. 3. The motorcycle equipped with a navigation system as claimed in claim 2, wherein said circumferential damper acts only in the direction of rotation from the second position to the first position. 4. The motorcycle equipped with a navigation system as claimed in claim 1, wherein said display device is arranged substantially in the middle of the handlebar of said motorcycle, and when in its first position, its display screen is displayed near said instrument panel . 5. The motorcycle equipped with a navigation system according to claim 1, wherein the second position of the display device is set such that the display device is placed along the surface of the vehicle body. 6. The motorcycle equipped with a navigation system as claimed in claim 1, wherein said box is provided with: an openable cover for easy insertion and removal of said PDA, a connector for connecting input/output terminals of said PDA, and a through It can directly watch the window of the display screen of the above-mentioned PDA contained in the above-mentioned box. 7. A motorcycle equipped with a navigation system, having: A GPS sensor for receiving radio waves from GPS satellites and outputting azimuth measurements; an instrument panel disposed on the front surface of the vehicle body; a display device for displaying on its display screen navigation information based on azimuth measurement data, said display device being disposed on said instrument panel and supported on said vehicle body so as to be positioned between a first position and a second position In its first position, the display screen of the above-mentioned display device rises along the above-mentioned instrument panel, and at its second position, the above-mentioned display screen faces down along the upper surface of the instrument panel, Also, the above-mentioned display device has a box and a system controller, the box can house a PDA capable of providing navigation information based on the azimuth measurement data using the above-mentioned display screen, and the system controller forwards the azimuth measurement to the PDA housed in the above-mentioned box Data and make the PDA perform the navigation work; the above-mentioned box is supported on the above-mentioned car body and is convenient for changing attitude between the first position and the second position. 8. The motorcycle equipped with a navigation system as claimed in claim 7, wherein said display device is arranged substantially in the middle of the handlebar of said motorcycle, and when in its first position, its display screen is displayed near said instrument panel . 9. The motorcycle equipped with a navigation system according to claim 7, wherein the second position of the display device is set such that the display device is placed along the surface of the vehicle body.

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