Machine element or mechanism – Gyroscopes – Combined
Reexamination Certificate
1999-09-03
2001-10-16
Herrmann, Allan D. (Department: 3682)
Machine element or mechanism
Gyroscopes
Combined
C074S005410, C074S005500, C074S005900, C074S005440
Reexamination Certificate
active
06301982
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a method of mounting a variable mechanism for a mounting angle and to a housed gyro-sensor unit which can make a mounting angle of a housed gyro-sensor unit horizontal without reference to a mounting angle of a navigation system in a vehicle.
BACKGROUND TO THE INVENTION
Conventional methods of mounting a variable mechanism for the mounting angle of a housed gyro-sensor involve a method of fixing in a navigation system.
This type of conventional housed gyro-sensor mounted in a car navigation system is shown in FIG.
1
and FIG.
2
.
FIG. 1
is a schematic view of a car navigation system which has a housed gyro-sensor.
FIG. 2
is a view of the state of a housed gyro-sensor when the car navigation system is mounted in an inclined position.
In
FIG. 1
, reference numeral
1
denotes car navigation system housed in a dashboard,
2
is a housed gyro-sensor fixed to the car navigation system. The housed gyro-sensor
2
is preferably maintained in a horizontal position with respect to the body of the vehicle. In particular, this has been necessary with respect to a gyro-sensor detecting the variable amount or absolute value of the angle of the horizontal periphery (rate).
The operation of the invention will be described below.
Since the housed gyro-sensor unit device
2
is fixed to the car navigation system
1
, it has been necessary to choose a position at which it is possible to place at car navigation system
1
horizontally when mounting the car navigation system
1
in the vehicle body in order to hold the housed gyro-sensor in a horizontal position with respect to the vehicle body.
Since a method of mounting a conventional variable mechanism for a mounting angle of a housed gyro-sensor is arranged as outlined above, when the car navigation system
1
is not housed horizontally with respect to the vehicle body, that is to say, when the housed gyro-sensor is not housed horizontally with respect to the vehicle body, the problem of reduced accuracy in the housed gyro-sensor
2
has arisen since the housed gyro-sensor
2
must be used in a sloping position.
The present invention proposed to solve the above problems and has the object of providing of a variable mechanism for a mounting angle of a housed gyro-sensor and a method of mounting said mechanism. When a housed gyro-sensor
2
is mounted in a car navigation system body, the variable mechanism of the present invention can regulate the mounting angle of the housed gyro-sensor
2
without reference to a mounting angle of a car navigation system when mounted in a vehicle body and thus can be used in an ideal state.
The present invention has the further object of providing a method of mounting a variable mechanism for the mounting angle of a housed gyro-sensor in which horizontal adjustments are simplified.
The present invention has the further object of providing a variable mechanism for the mounting angle of a housed gyro-sensor and a method of mounting said mechanism in which it is not necessary to regulate the horizontal position manually.
The present invention has the further object of providing a variable mechanism for the mounting angle of a housed gyro-sensor and a method of mounting said mechanism in which an acceleration or deceleration G generated when the vehicle is running can be prevented from affecting the variable mechanism of the housed gyro-sensor.
DISCLOSURE OF THE INVENTION
The variable mechanism of the housed gyro-sensor according to a first aspect of the present invention is housed in a car navigation system and supports a housed gyro-sensor horizontally with respect to the vehicle body. The housed gyro-sensor detects an amount of variation or an absolute value of an angle of the horizontal periphery in the vehicle body.
In this way, it is possible to use the housed gyro-sensor in an ideal state without any reductions in accuracy.
The variable mechanism of the housed gyro-sensor according to a second aspect of the present invention is supported to move with respect to the housing of a car navigation system main body and fixes a housed gyro-sensor at an arbitrary position or a fixed position depending on the mounting angle of the car navigation main body.
In this way, it is possible to obtain the same effect as that of the first aspect of the invention.
The variable mechanism of the housed gyro-sensor according to a third aspect of the present invention forms a mounting hole in the housing of the car navigation system and supports a rotation plate, which houses the housed gyro-sensor, to rotate freely with respect to a pitch axis of the mounting hole.
In this way, it is possible to regulate the horizontal orientation of the housed gyro-sensor with a relatively simple moveable mechanism and it is possible to obtain the same effect as that of the first aspect of the invention.
The variable mechanism of the housed gyro-sensor according to a fourth aspect of the present invention forms a mounting hole in the housing of the car navigation system main body and a guiding groove along the circular periphery of the mounting hole. A hole for a connecting pin is formed at a position, corresponding to the guiding groove, on the rotation plate which houses the housed gyro-sensor. The variable mechanism is supported to rotate freely with respect to the direction of pitch of the mounting hole and is fixed by a connection pin which pierces both the connection pinhole and the guiding groove.
In this way, it is possible to obtain the same effect as that of the first aspect of the invention and it is possible to prevent errors in the position of the horizontal axis of the rotation plate due to vibrations from the vehicle body.
The variable mechanism of the housed gyro-sensor according a fifth aspect of the present invention forms a mounting hole in the housing of the car navigation system main body and a plurality of notches in the circular section. The rotation plate which houses the housed gyro-sensor is supported to rotate freely with respect to a pitch axis of the mounting hole and is slidably supported on the housing of the car navigation main body. A rotation plate stopper engages with a notch due to the pressing force of a spring member and prevents the rotation of the rotation plate.
In this way, it is possible to obtain the same effect as that of the first aspect of the invention and it is possible to house a gyro-sensor purchased by the user on the market easily in the vehicle if the angular interval of the notch is formed to fit the type of vehicle.
The variable mechanism of the housed gyro-sensor according to a sixth aspect of the present invention supports a rotation plate, which houses the housed gyro-sensor, free to rotate with respect to the pitch axial direction of the mounting hole formed in the housing of the car navigation system main body. The rotation plate stopper which is slidably supported in the housing of the car navigation system main body is adapted to abut with the circular section of the rotation plate by a spring member which presses in the direction of the rotation plate thus preventing the rotation of the rotation plate.
In this way it is possible to obtain the same effect as that of the first aspect of the invention and it is possible to perform minute adjustments.
The variable mechanism of the housed gyro-sensor according to a seventh aspect of the present invention is supported to move freely with respect to the housing of a car navigation main body and horizontally supports a housed gyro-sensor with respect to a vehicle body without reference to the angle of mounting of a car navigation system main body.
In this way. it is unnecessary to regulate manually and it is possible to maintain the same level of accuracy as when the housed gyro-sensor is mounted horizontally in the normal manner.
The variable mechanism of the housed gyro-sensor according to an eighth aspect of the present invention engages a spherical section which is provided on the end of an arm which extends from the housed gyro-sensor with a retaining indentation in the h
Kubo Hirotoshi
Sugino Hiroaki
Takahashi Yasushi
Yamakado Kazunari
Herrmann Allan D.
Mitsubishi Denki & Kabushiki Kaisha
Sughrue Mion Zinn Macpeak & Seas, PLLC
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