JP4412868B2 - Simulated body simulation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a simulation apparatus for a simulated vehicle body that simulates the operation of the simulated vehicle body by expanding and contracting operations of a plurality of linear motion actuators connected to a base.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a simulation apparatus that operates a simulated vehicle body by a passenger's simulated operation has been adopted. In this type of simulation apparatus, for example, in a motorcycle riding simulation apparatus, the simulated vehicle body is usually rotated by rotating the shafts under the action of a drive source such as a motor directly connected to the roll shaft and the pitch shaft. Is configured to swing.
[0003]
Recently, however, motorbike training has been desired as part of motorcycle safety training, as well as regular and small motorcycle training at driving schools. For this reason, for example, as a riding simulation device that can be manufactured at low cost without impairing the reproduction function of the current type of motorcycle disclosed in Japanese Patent Laid-Open No. 6-51695, a simulated vehicle body using a pair of linear motion actuators There is known a parallel link type riding simulation apparatus configured to be capable of rotating around a roll axis and a pitch axis (Japanese Patent Laid-Open No. 2001-092344). This riding simulation apparatus can greatly simplify the structure of the apparatus as compared with the conventional apparatus, thereby enabling installation at an arbitrary place and providing an inexpensive riding simulation apparatus. It has the advantage of being able to.
[0004]
[Problems to be solved by the invention]
By the way, in this type of linear motion actuator, the actuator body connected to the simulated vehicle body is configured to be able to advance and retract along a shaft member (screw) connected to the base. For this reason, dust or the like enters the actuator main body due to the inflow of air accompanying the movement of the actuator main body, and grease inside the motor may leak, for example.
[0005]
Therefore, a bellows member is installed between the base and the actuator main body so as to cover the shaft member, and the bellows member is formed with a hole for inflow and outflow of air, and the hole Corresponding to the mesh fabric material. However, in order to maintain a good dustproof function, the diameter of the hole cannot be set large, the flow rate of the passing air becomes small, and the high-speed movement of the actuator main body is hindered. It has been pointed out. In this case, it is conceivable to provide a large number of holes in the bellows member, but there is a problem that the manufacturing cost of the bellows member is considerably increased.
[0006]
The present invention solves this type of problem, and provides a simulation apparatus for a simulated vehicle body that has a simple and inexpensive configuration, does not allow dust or the like to enter a linear motion actuator, and can operate at high speed. With the goal.
[0007]
[Means for Solving the Problems]
In the simulation apparatus for a simulated vehicle body according to the present invention, a linear motion actuator is connected to a base via a first universal joint, and to the simulated vehicle body via a second universal joint, and the shaft A hollow actuator main body that can be moved back and forth along the member, a bellows member that is fixed at one end to the base and covers the shaft member, and the hollow actuator main body and the bellows member. And a filter member disposed between the ends.
[0008]
Thus, since the filter member is used, it is not necessary to provide a hole in the bellows member, and the bellows member can be manufactured economically. Thereby, with a simple configuration, dust or the like does not enter the hollow actuator main body or grease does not leak, and the reliability can be greatly improved. In addition, since the inflow and outflow of air to the bellows member are smoothly performed through the filter member, the high-speed movement of the hollow actuator main body can be reliably performed.
[0009]
Moreover, the filter member is comprised with open-cell sponge. For this reason, the manufacturing cost of the filter member is effectively reduced, and the inflow and outflow of air to the hollow actuator main body are smoothly and reliably performed.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic side view of a motorcycle riding simulation apparatus 10 according to an embodiment of the present invention, and FIG. 2 is a schematic plan view of the riding simulation apparatus 10.
[0011]
The riding simulation apparatus 10 includes a base 12 supported by legs 11, and a simulated vehicle body supported on the base 12 with two degrees of freedom of rotation about a roll shaft 18 and a pitch shaft 22 described later. 14.
[0012]
A support base 16 is fixed at substantially the center of the base 12, and a roll shaft 18 extending in the vehicle length direction (arrow A direction) of the simulated vehicle body 14 is provided on the support base 16 with a pair of bearings. 20 is supported. As shown in FIG. 3, a pitch shaft 22 extending in the vehicle width direction (arrow B direction) of the simulated vehicle body 14 orthogonal to the roll shaft 18 is supported above the roll shaft 18 via a pair of bearings 24. Yes. The bearing 24 is fixed to the back surface of the support plate 26, and the main frame 28 is fixed to the upper surface of the support plate 26.
[0013]
As shown in FIG. 1, a rear frame 30 extending obliquely upward is disposed behind the main frame 28 in the vehicle length direction, and a rider (not shown) sits on the rear frame 30. A sheet 31 is provided. A front column 32 extending upward is disposed in front of the main frame 28 in the vehicle length direction, and a steering shaft 36 is rotatably supported on the upper portion of the front column 32.
[0014]
A handle 34 is attached to the upper end of the steering shaft 36, and a steering control unit 40 is connected to the lower end of the steering shaft 36. The steering wheel 34 is configured to be given an operation load according to the driving state via the steering control unit 40.
[0015]
The riding simulation apparatus 10 includes a pair of left and right linear motions symmetrically with respect to a plane that includes the axis of the roll shaft 18 and is perpendicular to the pitch axis 22 at a position offset in the axial direction of the roll shaft 18 (forward in the present embodiment). Actuators 50 are provided.
[0016]
As shown in FIGS. 1, 3, and 4, each linear motion actuator 50 includes a ball screw portion (shaft member) 54 connected to the base 12 via a first universal joint 52, and a first to the simulated vehicle body 14. 2 is connected via a universal joint 56, and includes a ball screw nut 58 that is screwed into the ball screw portion 54. When the ball screw nut 58 is driven to rotate, the ball screw nut 58 is integrated with the ball screw nut 58. And a hollow actuator main body 60 that can advance and retreat in the direction of arrow C.
[0017]
The first universal joint 52 is a hook-shaped universal shaft joint in which a lower yoke 62 fixed to the base 12 and an upper yoke 64 fixed to the ball screw portion 54 are connected via a cross-shaped metal fitting 66. Has been. The second universal joint 56 includes brackets 68 projecting on both sides of the front surface of the front column 32. The bearings 70 disposed at both ends of the bracket 68 are connected to fork-like metal fittings via shafts 72 extending in the longitudinal direction of the vehicle body. 74 is supported.
[0018]
As shown in FIG. 4, shafts 76 orthogonal to the shaft 72 are provided opposite to each other at the bifurcated portion of the fork-shaped bracket 74. The shaft 76 of the fork-shaped metal fitting 74 is pivotally attached to the actuator main body 60 via a bearing 78 in a state where the actuator main body 60 is inserted between the forked parts of the fork-shaped metal fitting 74.
[0019]
A servo motor 80 and a brake mechanism 82 are coaxially connected to the actuator body 60. The servo motor 80 is housed in a motor housing 84 that is screwed to the actuator body 60, a stator 86 that is fixed in the motor housing 84, and a motor housing 84 that is rotatably accommodated. And a formed rotor 90.
[0020]
An annular magnet 92 is fixed to the outer periphery of the rotor 90. A coil 86a constituting the stator 86 is annularly arranged inside the motor housing 84, and the shaft of the magnet 92 facing the coil 86a. The dimension in the direction of arrow C is set corresponding to the dimension in the direction.
[0021]
The first and second bearings 94 and 96 are interposed between the outer peripheral surface of the large-diameter portion 90 a provided on one end side of the rotor 90 and the inner peripheral surface of the actuator main body 60. A third bearing 98 is interposed between the outer peripheral surface of the small diameter portion 90 b on the other end side of the rotor 90 and the inner peripheral surface of the actuator main body portion 60.
[0022]
A ball screw nut 58 and an encoder 100 for detecting the rotation angle of the rotor 90 are integrally screwed to the large diameter portion 90 a of the rotor 90. A ball screw portion 54 is screwed into the ball screw nut 58, and the ball screw portion 54 extends in the direction of arrow C through the actuator body 60.
[0023]
As shown in FIG. 4, the brake mechanism 82 is screwed to the actuator body 60, and one end is fixed to the casing 102 and the base 12 constituting the brake mechanism 82 and covers the ball screw portion 54. The filter member 106 is disposed between the other end of the bellows member 104 disposed. The filter member 106 is composed of a continuous foam sponge, and is fixed to the casing 102 integrally with the other end of the bellows member 104 via a bolt 108.
[0024]
The operation of the riding simulation apparatus 10 configured as described above will be described below.
[0025]
In the linear actuator 50, when the pair of actuator main bodies 60 are raised or lowered at the same time, the simulated vehicle body 14 is given a forward or downward rotation with the pitch shaft 22 as a fulcrum, that is, a pitch operation. On the other hand, when the actuator main body portions 60 of the two linear actuators 50 are moved in the opposite directions, the simulated vehicle body 14 is given a lateral rotation around the roll shaft 18, that is, a roll operation.
[0026]
The operation of the linear actuator 50 will be schematically described. As shown in FIG. 4, first, power is supplied to the servo motor 80, thereby energizing the coil 86 a of the stator 86. Therefore, a magnetic field is generated under the action of the stator 86 and the annular magnet 92 facing the stator 86, and the rotor 90 constituting the servo motor 80 rotates in a predetermined direction.
[0027]
A ball screw nut 58 is screwed to the end of the large diameter portion 90 a constituting the rotor 90, and the ball screw nut 58 rotates integrally under the rotating action of the rotor 90. The ball screw nut 58 is screwed into the ball screw portion 54, and the ball screw nut 58 moves in the direction of arrow C along the ball screw portion 54 integrally with the actuator body 60. As a result, the actuator body 60 is raised or lowered, and a pitch operation or a roll operation is applied to the simulated vehicle body 14.
[0028]
Therefore, the riding simulation apparatus 10 gives the rider a pitch action according to the accelerator operation and the brake operation by the occupant and also gives a roll action according to the weight movement of the occupant, thereby giving the occupant the same vehicle body as that during actual vehicle travel. You can feel the behavior.
[0029]
In this case, in this embodiment, the filter member 106 is disposed between the bellows member 104 disposed so as to cover the ball screw portion 54 and the casing 102 constituting the brake mechanism 82. Therefore, as shown in FIG. 5, when the actuator main body 60 is lowered (in the direction of arrow C <b> 1), the bellows member 104 is contracted so that the air in the bellows member 104 passes smoothly through the filter member 106 to the outside. To leak.
[0030]
On the other hand, as shown in FIG. 6, when the actuator main body 60 moves upward (in the direction of arrow C <b> 2), the bellows member 104 is enlarged, so that external air passes through the filter member 106 and enters the bellows member 104. It flows in smoothly.
[0031]
Thus, in this embodiment, it is not necessary to provide a hole in the bellows member 104 by using the filter member 106, and the bellows member 104 can be manufactured economically. As a result, dust or the like enters the actuator main body 60 and the dust or the like is prevented from adhering to the inside of the ball screw portion 54, the servo motor 80, or to components such as the encoder 100, and the servo motor 80. There is no grease leakage from the inside, and an effect is obtained that the reliability can be greatly improved with a simple configuration.
[0032]
Further, the filter member 106 is constituted by a continuous foam sponge, and air flows into and out of the bellows member 104 through the continuous foam sponge smoothly and reliably. For this reason, even if the actuator main body 60 is moved in the vertical direction along the ball screw portion 54 at high speed, the air resistance in the bellows member 104 is greatly reduced, and the high-speed movement of the actuator main body 60 is ensured. There is an advantage that it becomes feasible. In addition, the manufacturing cost of the filter member 106 is effectively reduced, which is economical.
[0033]
In the present embodiment, the motorcycle riding simulation apparatus 10 has been described. However, the present invention is not limited to this, and the same is applicable as long as the operation of the simulated vehicle body is simulated by the expansion and contraction operations of a plurality of linear actuators. For example, the present invention can also be applied to a four-wheeled vehicle driving simulation device.
[0034]
【The invention's effect】
In the simulation apparatus for the simulated vehicle body according to the present invention, the filter member is interposed between the hollow actuator main body that can advance and retreat along the shaft member and the bellows member that is disposed to cover the shaft member. It is not necessary to provide a hole in the bellows member, and the bellows member can be manufactured economically. Thereby, with a simple configuration, dust or the like does not enter the hollow actuator main body or grease does not leak, and the reliability can be greatly improved. In addition, since the inflow and outflow of air to the bellows member are smoothly performed via the filter member, the high-speed movement of the hollow actuator body can be reliably performed.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a riding simulation apparatus for a motorcycle according to an embodiment of the present invention.
FIG. 2 is a schematic plan view of the riding simulation apparatus.
FIG. 3 is a cross-sectional view of the riding simulation apparatus taken along the line III-III in FIG.
FIG. 4 is a partial cross-sectional explanatory diagram of a linear motion actuator constituting the riding simulation apparatus.
FIG. 5 is an operation explanatory diagram when the linear actuator is lowered.
FIG. 6 is an operation explanatory diagram when the linear actuator is raised.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Riding simulation apparatus 12 ... Base 14 ... Simulated vehicle body 18 ... Roll axis 22 ... Pitch axis 28 ... Main frame 30 ... Rear frame 32 ... Front column 36 ... Steering axis 50 ... Linear actuators 52, 56 ... Universal joint 54 ... Ball screw 58 ... Ball screw nut 60 ... Actuator body 68 ... Bracket 80 ... Servo motor 82 ... Brake mechanism 84 ... Motor housing 86 ... Stator 86a ... Coil 88 ... Hollow part 90 ... Rotor 92 ... Magnet 100 ... Encoder 102 ... Casing 104 ... Bellows member 106 ... Filter member 108 ... Bolt

Claims (2)

A simulation device for simulating the operation of a simulated vehicle body by expanding and contracting operations of a plurality of linear actuators connected to a base,
The linear motion actuator includes a shaft member connected to the base via a first universal joint;
A hollow actuator body coupled to the simulated vehicle body via a second universal joint and capable of moving back and forth along the shaft member;
One end is fixed to the base side, and a bellows member disposed to cover the shaft member;
A filter member disposed between the hollow actuator body and the other end of the bellows member;
An apparatus for simulating a simulated vehicle body. The simulation apparatus according to claim 1, wherein the filter member is made of open-cell sponge.

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