JP2772472B2 - Radio control car - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio controlled vehicle in which a reduced model vehicle is run using an engine, a motor, or the like, and is remotely controlled by a radio control device.

[0002]

2. Description of the Related Art Conventionally, many radio control automobiles are designed for competition, and are capable of realizing a speed of 50 to 100 km / h at an actual speed by using an engine or a motor for power. There was a car.

[0003]

However, in a conventional radio-controlled vehicle, the driver may swing in the circumferential direction due to inertial force and crash in high-speed driving. Then, it is necessary to perform an operation of reducing the speed of the radio control vehicle in advance. Decreasing the speed of a radio-controlled car in this way is a factor in victory or defeat in competitions, etc.Therefore, while maintaining a high-speed running state, maintaining a stable running posture, quickly turning on a curved road surface The advent of a radio-controlled car that can be driven has been long-awaited.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to ensure that a vehicle can travel on a curved road surface even if the deceleration position is delayed in a stable traveling posture while maintaining a high-speed traveling state. It is an object of the present invention to provide a radio controlled vehicle capable of realizing these operations with a simple configuration.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the invention according to the first aspect of the present invention is directed to a radio-controlled vehicle, in which the entire body is divided into two parts, a front side and a rear side. Front body 12 arranged on the side
And a rear body 14 disposed on the rear side. The front body 12 and the rear body 14 are provided with a thrust sliding connection mechanism 16 for connecting at least relatively freely in the thrust direction. The thrust sliding connection mechanism 16 includes a swing direction adjusting mechanism 18 that adjusts the swing direction in the thrust direction at the front end side of the rear body in response to the thrust direction movement at the rear end side of the front body during steering. You.

According to a second aspect of the present invention, the swing direction adjusting mechanism 18 is bridged between the front body 12 and the rear body 14 and both ends thereof are pivotally connected to each other to move in a forward direction. It may include a plurality of link rods 26 provided in an expanded shape toward.

Further, according to a third aspect of the present invention, the swing direction adjusting mechanism automatically adjusts the swing direction by the inertial movement of the rear end of the front body during steering without requiring external control. The swing direction may be controlled.

Further, the invention relating to a radio controlled automobile 10 according to claim 4 is characterized in that the thrust sliding connection mechanism 16 is provided.
Are the front body 12 and the rear body 14
It is provided long in the front-back direction at the approximate center position in the width direction,
In addition, these front body 12 and rear body 1
4 may be provided with a sliding member 22 whose both ends are pivotally supported.

Further, in the invention according to a fifth aspect of the present invention, the link rod 26 is provided at both ends of the front body 12 and the rear body 14 in the width direction.
The sliding members 22 may be arranged at an intermediate position between the link rods 26.

Further, according to a sixth aspect of the present invention, the front body 12 includes
Elastic protrusions 30 protruding from both ends in the width direction are provided, and the link rod 26 may be attached to the front body 12 by a pivotal connection at the elastic protrusions 30.

Further, the invention relating to a radio controlled automobile 10 according to claim 7 is characterized in that the thrust sliding connection mechanism 16 is provided.
May include a restricting portion 28 for restricting a relative thrust direction moving width of the front body 12 and the rear body 14.

Further, in the invention according to the eighth aspect of the present invention, the regulating portion is provided with a regulating hole provided on a rear end side of the front body and a regulating hole provided on the sliding member. 38 may be provided.

Further, in the invention according to a ninth aspect of the present invention, the regulating hole 38 may be arranged at a rear end side of the front body 12.

According to a tenth aspect of the present invention, the plurality of link rods 26 are pivotally connected by a universal joint 32, and the front body 12 and the rear body 14 swing in the rolling direction. It may be movably provided.

Further, according to an eleventh aspect of the present invention, the front body 12 or the rear body 14 is provided with a damper 44 disposed in a front-rear direction of the body. Alternatively, it has a load-side connecting portion 46 connected to one of the rear bodies 14, and the load-side connecting portion 46 is set at a position higher in the vehicle height direction than the thrust sliding connection mechanism 16. When the front body 12 and the rear body 14 move close to and away from each other in response to the swing in the gap direction, a damper buffer mechanism 48 that is buffered only by the buffering force of the damper 44 may be provided. .

According to a twelfth aspect of the present invention, the damper buffer mechanism 48 includes a connecting portion 52 connected to the load side connecting portion 46 and connected to the front body 12 or the rear body 14. The lower end is disposed on the rear end of the front body 12 and is mounted in an upright state, and is pivotally supported so as to be able to fall in the front-rear direction. The cushioning shaft 50 may be included.

According to a thirteenth aspect of the present invention, a plurality of dampers 44 are bridged over the front body 12 or the rear body 14, and one of these dampers 44 has a direction of expansion and contraction. They may be arranged so as to intersect.

Further, in the invention according to claim 14 of the present invention, any one of the dampers 44 may be provided so as to expand in the traveling direction.

[0019]

In the radio controlled vehicle according to the first aspect of the present invention, the entire body is divided into two parts, a front side and a rear side, and a front body disposed on the front side and a rear body disposed on the rear side. And a thrust sliding connection mechanism for connecting the front body and the rear body so as to be freely movable at least relatively in a thrust direction, and the thrust sliding connection mechanism is arranged behind the front body during steering. A swing direction adjusting mechanism for adjusting a swing direction in the thrust direction on the front end side of the rear body in accordance with the movement in the thrust direction on the end side is included. The thrust sliding connection mechanism allows the front body and the rear body to slide relatively in the thrust direction from where they are connected, so that the rear wheel on the rear body side can be oriented in the same direction as the front wheel. Becomes The direction of the rear wheel traveling on the curve can be controlled in a desired direction by the deflection direction adjusting mechanism, and the vehicle can travel on the curve at high speed. Since the four-wheel steering can be performed with a simple configuration, it is possible to provide a radio-controlled vehicle suitable for mass production and capable of running at high speed at low cost.

In the radio controlled vehicle according to the second aspect of the present invention, the swing direction adjusting mechanism is bridged between the front body and the rear body, and both ends thereof are pivotally connected, and expands in the forward direction. And a plurality of link rods provided in a shape. Since the link rod connecting the front body and the rear body is extended in the forward direction in an expanding manner, when traveling on a curve, the front body and the rear body are orbited around the support parts of the left and right link rods As a result, the vehicle can be controlled in a state where the direction of the rear wheels is ideal while traveling on a curve. When traveling straight, the driving force of the rear wheels can be applied evenly, and the stability when traveling straight can be improved. The front and rear bodies, which are divided into two parts at the front and rear, can be connected with a simple configuration.

In the radio controlled vehicle according to the third aspect of the present invention, the swing direction adjusting mechanism automatically changes the swing direction by inertial movement of the rear end of the front body during steering without requiring external control. Control. The front body and the rear body move in the thrust direction mutually by the rear part of the front body moving by inertial force in the radial direction by centrifugal force acting while traveling on a curve. At this time, as a result of the left and right link rods moving around the respective support portions, the movement of the front body and the rear body in the thrust direction is restricted, and the swing direction can be automatically controlled. Since the swing direction is automatically controlled by the inertial force, the most stable running posture can be maintained when the vehicle is running on a curve at high speed. Since no external control is required, low-cost four-wheel steering can be realized.

In the radio controlled vehicle according to the invention of claim 4, the thrust sliding connection mechanism is provided to be long in the front-rear direction at a substantially central position in the width direction of the front body and the rear body, and the front thrust sliding connection mechanism is provided. The body and the rear body are provided with sliding members pivotally supported at both ends. Since the front body and the rear body are connected at both ends of the sliding member, the front body and the rear body can be integrally connected and maintained while enabling sliding movement in the thrust direction. Even if the front body and the rear body vibrate in the vertical direction, the vertical movement of the gap can be absorbed by the sliding member. Since the sliding member is disposed at the center between the front body and the rear body, the connection balance is extremely good, and the thrust sliding movement can be performed smoothly. The front body and the rear body can be integrally connected with a simple configuration, and the sliding member is made of a plate material, so that the manufacturing is easy and mass production can be performed.

In a radio controlled vehicle according to a fifth aspect of the present invention, two link rods are disposed at both ends in the width direction of a front body and a rear body, and the sliding member is located at an intermediate position between the link rods. Are located in When the sliding member and the link rod act synergistically, for example, when traveling on a curve, the sliding member can move the front body and the rear body in the relative thrust direction. By the action of the link rod, the rear wheel can be turned in the opposite direction to the direction of the front wheel at the entrance of the curve, and the front end of the front body can be quickly turned to the exit direction of the curve.
When the rear end of the front body moves in the radial direction due to the centrifugal force acting on the vehicle body, the front body and the rear body slide relatively to move the front and rear wheels in the same direction. it can. At this time, the rear wheels are directed inward of the curve, so that the rear portion of the vehicle body can be prevented from swinging in the radial direction. In addition, when a driving force is applied to the rear wheels while the rear wheels are facing inward, the rear portion of the vehicle body can be further turned inward, and the vehicle can travel on a curve at high speed. The front body and the rear body can be reliably connected at the three points of the left and right link rods and the center sliding member, so that the connection balance between the front body and the rear body is extremely good.

According to a sixth aspect of the present invention, the front body is provided with elastic protrusions protruding at both ends in the width direction, and the link rod is attached to the front body side by the elastic protrusions. By pivotal connection at Vibration and impact in the direction of the gap generated on the road surface during traveling largely act on the connection between the front body and the rear body, that is, on the link rod. Then, the link rod can transmit vibration and impact to the elastic projecting portion pivotally connected. At this time, the vibration acting on the vehicle body due to the vibration of the elastic protrusion can be absorbed. Further, when a strong impact is applied from the front portion of the front body or the rear portion of the rear body, the elastic projection pressed by the link rod is twisted, and the impact can be absorbed.

In the radio controlled automobile according to the invention of claim 7, the thrust sliding connection mechanism includes a regulating portion for regulating a relative thrust direction movement width of the front body and the rear body. When the front body and the rear body slide relative to each other in the thrust direction, the amount of movement can be restricted, and the direction of the rear wheel can be prevented from being excessively changed. If the direction of the rear wheels is excessively changed with respect to the direction of the front wheels, the vehicle body is shaken and the running posture becomes unstable, but such a situation can be prevented.

In the radio controlled automobile according to the invention of claim 8, the restricting portion is provided on a restricting hole provided on a rear end side of a front body and on the sliding member, and is mounted to penetrate the restricting hole. Locking pin.
The movement width of the locking pin is regulated by the regulation hole, so that the sliding width of the sliding member can be regulated, and the sliding movement width of the front body and the rear body in the thrust direction can be regulated. Becomes When the front body and the rear body slide relative to each other in the thrust direction, the movement width can be regulated, and the direction of the rear wheel can be prevented from being excessively changed. Since the sliding movement width of the front body and the rear body in the thrust direction can be regulated with a simple configuration, the regulating section can be realized at low cost.

[0027] In the radio controlled vehicle according to the ninth aspect of the present invention, the regulating hole is disposed on a rear end side of the front body. Restriction holes are provided at the rear of the front body to regulate the movement of the rear body against vibrations and shocks, so that even when vibrations and shocks act on the vehicle body, relative thrust sliding movement between the front body and the rear body is ensured can do. As a result, it is possible to drive at high speed while maintaining a stable posture on curves and straight lines.

In a radio controlled vehicle according to a tenth aspect of the present invention, the plurality of link rods are pivotally connected by a universal joint, and the front body and the rear body are provided so as to be swingable in a rolling direction. I have. Since the link rod pivotally supported by the universal joint can move up and down, right and left, the front body and the rear body can mutually swing in the rolling direction even when moving straight or when sliding in a thrust direction. As a result, for example, when vibration due to road surface irregularities acts on the front body and the rear body while traveling straight or traveling on a curve, the front body and the rear body can absorb the vibration by swinging in the rolling direction mutually. It becomes possible.

[0029] In the radio controlled automobile according to the eleventh aspect of the present invention, the front body or the rear body is provided with a damper disposed in a front-rear direction of the body, and the damper is provided for either the front body or the rear body. The load-side connecting part is set at a higher position in the vehicle height direction than the thrust sliding connecting mechanism, and corresponds to the swing in the gap direction. When the front body and the rear body move close to and away from each other, a damper buffering mechanism is provided which is buffered only by the buffering force of the damper. When swinging in the gap direction due to vibrations of the road surface during running, the front body and the rear body move close to and away from each other. At this time, the damper connected to either the front body or the rear body via the load-side connecting portion expands and contracts to absorb the swinging movement of the front body and the rear body moving close to and away from each other. . That is, these damper damping mechanisms can absorb the swing in the gap direction between the front body and the rear body. Since the vibration can be absorbed by the damper buffer mechanism, the vibration can be surely absorbed.

In a radio control vehicle according to a twelfth aspect of the present invention, the damper buffer mechanism has a connecting portion connected to the load side connecting portion and connected to a front body or a rear body. A lower end side of the front body includes a shock-absorbing shaft which is disposed in the rear end side of the front body, is mounted in an upright state, and is supported so as to be able to fall down in the front-rear direction. When the front body and the rear body swing in the gap direction, the connection portion synchronizes and transmits the swing to the load side connection portion. At this time, the shock absorbing shaft penetrating the connection portion falls down in the front-rear direction in synchronization, so that the vibration in the gap direction can be directly absorbed by the damper. Thereby, the vibration in the gap direction acting on the vehicle body can be instantaneously and reliably absorbed.

In the radio control vehicle according to the invention of claim 13, a plurality of dampers are bridged over the front body or the rear body, and any one of these dampers is arranged so that the directions of expansion and contraction intersect. ing. Vibration and impact generated during traveling interact with each other toward one point where the damper intersects, so that the influence on the vehicle body is reduced, and the traveling posture becomes extremely stable. Since vibrations and shocks during traveling can be absorbed only by the dampers that intersect, it is possible to realize a damper buffering mechanism with an extremely simple configuration, which is suitable for mass production.

[0032] In the radio controlled vehicle according to the fourteenth aspect of the present invention, any one of the dampers is provided so as to expand in the traveling direction. When traveling on a curve, the swing direction of the rear body can be reliably controlled by acting synergistically with the left and right link rods. Further, when the vehicle is traveling straight, the driving force generated by the rear wheels can be uniformly transmitted to the front body by the expanded dampers, so that an extremely stable running posture can be maintained.

[0033]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a radio control vehicle 10 according to an embodiment of the present invention. The radio control vehicle 10 is remotely controlled by a radio control device at a speed and a direction desired by the driver. As is clear from FIG. 1, the radio control automobile 10 is formed by dividing the entire body into two parts, a front side and a rear side.
And a front body 12 arranged on the front side,
And a rear body 14 arranged on the rear side. These front body 12 and rear body 14
Is provided with a thrust sliding connection mechanism 16 for connecting at least relatively freely in the thrust direction. The thrust sliding connection mechanism 16 includes a swing direction adjusting mechanism 18 that adjusts the swing direction of the front end of the rear body 14 in the thrust direction in accordance with the thrust movement of the front end of the front body 10 during steering. .

As shown in FIGS. 2 and 3, the front body 12 is a thin rectangular front bottom plate 1 formed in an elongated rectangular shape.
5 is provided. The front bottom plate 15 has a long hole-shaped recess 13 formed at the center on the rear end side in the longitudinal direction, and has a bifurcated protrusion 17 extending toward the rear body. Note that the front bottom plate 15 may have a structure of only a frame.

A front wheel 82 is mounted on the front end side of the front body 12 via support frames 19 on the left and right sides, and a drive rod 74 whose end is connected to a steering device 92 mounted on the front bottom plate 15. Turn left and right through. As can be seen in FIGS.
That is, the long plate member 34 as the elastic protruding portion 30 is fixed to the rear end side so as to straddle these bifurcated protruding portions 17 and to be orthogonal to the front-rear direction. A link rod 26, which will be described later, is connected to the widthwise end of the long plate member 34. The long plate member 34 elastically swings when the entire body swings in the rolling direction, that is, when swinging right and left. The rolling motion is absorbed and cushioned. As shown in FIG. 2 and FIG. 8, leg members 60a are respectively erected and fixed to the rear end side of the bifurcated protruding portion 17, and the leg members 60b, 60b are located slightly forward thereof. It is erected and fixed parallel to the members 60a, 60a.
These four leg members 60a and 60b are located at respective corners of the square. These leg members 60a, 60
A substrate frame 62 having a hollow inside is fixed to the upper surface of b. A square pillar frame formed by the front bottom plate 15, the leg members 60a and 60b, and the substrate frame 62 forms a kind of rigid body, and forms a reinforcing structure for reinforcing the bifurcated protrusion 17 of the front body 12. .

As shown in FIGS. 1, 3, and 9, a support member 23 is fixed to the front bottom plate 15 at the base side of the concave portion 13 formed in the middle of the forked-shaped protrusion 17 and formed long before and after. Have been. A long plate-shaped sliding member 22 is provided inside the recess 13 and has a width smaller than the width of the recess 13 and can swing right and left in the recess 13. That is, the front end side of the sliding member 22 is pivotally supported at the pivoting portion 24 at a substantially central position of the support member 23, and the rear end side of the sliding member 22 extends further across the long plate member 34. It is provided so as to be able to swing substantially right and left around the pivotal attachment portion 24. The bottom plate of the front body 12 is transmitted from a steering device 92 for steering the front wheel 82 of the radio control vehicle 10 in a desired direction, a controller 96 for switching between forward and reverse and adjusting the speed, and a transmitter of the pilot. A receiver 94 that receives a radio wave and controls a steering device 92 and a controller 96, and further supplies power to these devices and a battery 98 serving as a power source of a motor for traveling.

On the other hand, as shown in FIGS. 2 and 3, the rear body 14 includes a substantially rectangular thin rear bottom plate 21 having widened portions formed on the front left and right sides. On the upper surface of the rear bottom plate 21, a rectangular cylindrical frame-shaped support case 54 is raised and fixed, and a drive motor 64 is accommodated therein. Bearing portions 55 are provided on both side walls in the width direction of the support case 54. A shaft 90 is rotatably supported by the bearing portion 55, and rear wheels 80 are attached to both ends thereof. Then, by engaging the small gear 86 fixed to the drive shaft of the drive motor 84 and the large gear 88 fixed to the shaft 90, the motor driving force is transmitted to rotate the rear wheel 80. . The shaft 90 is a single shaft or an integral, single shaft, and wheels are attached to both ends of the single shaft. Therefore, when the rear wheel 80 changes direction, the entire rear body including the rear bottom plate 21 and the drive motor 84 is turned in the same direction.

As shown in FIG. 3, the long plate-shaped sliding member 22 is provided in the front-rear direction at a substantially central position in the width direction of the front body 12 and the rear body 14. The rear end of the sliding member 22 is pivotally connected to the bottom surface of the rear bottom plate 21 of the rear body 14 at a pivot 24b. As a result, the front body 12 and the rear body 14 can be integrally slidable in the thrust direction with the support portions 24a and 24b pivotally attached to both ends of the sliding member 22 as fulcrums. Since the upper end side of the rear body 14 is elastically buffered by the damper 44, the long plate-shaped sliding member 22 is moved in the thrust direction by the thrust moving connecting member against vertical movement in the gap direction when traveling on a rough road. At the same time, it also functions as a bending absorption member for vertical movement in the gap direction. In the present embodiment, the thrust sliding connection mechanism 16 includes the sliding member 22.

In order to prevent the sliding member 22 from generating an unstable vibration during traveling, for example, an elastic member 100 is provided between the front body 12 and the sliding member 22 as shown in FIG. The movement of the sliding member 22 may be restricted by using. In addition, the elastic member 100 is not limited to the above-described example, and may be connected to the sliding member 22 integrally with the sliding member 22 between the left and right ends of the sliding member 22 and the long plate member 34 or on the upper surface side of the front body 12. It may be provided on the left and right of the stop pin 36. In any case, in such a case, the sliding member 22 is spring-biased so as to always return to the center position, and even if swinging in the gap direction or rolling direction acts on the vehicle body due to vibration during traveling. The sliding member 22 always returns to the center fixed position, and can maintain a good running posture. Further, for example, an elastic body such as rubber may be interposed between the support member 23 and the sliding member 22 to form the pivot portion 24a.

The thrust sliding connection mechanism 16 has a restricting portion 28 for restricting the relative movement width of the front body 12 and the rear body 14 in the thrust direction. As shown in FIGS. 1, 4, and 9, the bifurcated protrusion 17
At a substantially central position of a long plate member 34 provided horizontally.
A long restriction hole 38 is provided in the width direction, that is, the direction orthogonal to the front-rear direction. The restricting hole 38 is formed by being bent into an arc shape that forms a circular arc whose center is disposed forward of the hole.

As shown in FIGS. 1, 4, and 5, a top pin 36 is fixedly mounted on the upper surface of the sliding member 22 at a position corresponding to the regulating hole 38. . The upper end of the locking pin 36 is arranged to penetrate the restriction hole 38. Thereby, the widthwise movement of the sliding member is restricted by the movement width of the locking pin 36 in the restriction hole 38, and the proper front body and rear body are moved in the thrust direction. In the embodiment, the regulating portion 28 includes a regulating hole 38 and a locking pin 36.

The top locking pin 36 is formed integrally in a substantially top shape by forming a disc in a skewered shape, and has a disc-shaped insertion portion attached in a substantially intermediate portion at an enlarged diameter. 36a. Then, the long plate member 34 is formed as a double frame, and the insertion portion 36a is arranged in a sandwich shape therebetween, whereby the sliding member 22 is moved along the regulating hole 38 via the locking pin 36. Guide movement. Further, an elastic body 42 is interposed between the lower end of the locking pin 36 and the upper surface of the sliding member 22 so as to absorb the rolling of the whole body and the movement in the gap vertical movement direction. I have. Here, it is possible to prevent the vehicle body from swinging due to an excessive change in the direction of the rear wheels. Further, by providing a regulating hole 38 at the rear of the front body 12 to regulate the movement of the rear body 14, the relative thrust sliding movement of the front body 12 and the rear body 14 can be reliably performed.

In the present embodiment, the restricting portion 28 is configured such that the insertion portion 36a of the locking pin 36 is interposed in the double frame portion to guide the movement in the restricting hole 38. However, the guide structure is optional. May be adopted. For example, the long plate member 34 is formed as a single plate, a regulating hole 38 is drilled, and the locking pin 36 is formed in, for example, an I-shape with a recess formed on the side surface. And may be configured to move within the hole. In this embodiment, the restriction hole 3
Reference numeral 8 denotes an arc-shaped elongated hole centered on the support portion 24a. However, this may be, for example, an arc-shaped elongated hole centered on another position or a linear elongated hole. Further, an elastic body such as rubber may be provided around the restriction hole 38 to add a buffer function.

In this embodiment, the pivot portion 24a on the front end side of the sliding member 22 is set substantially rearward from the center position of the front body 12, but it is pivotally attached to an arbitrary position on the front body 12. May be. In the present embodiment, the pivoting portion 24b on the rear end side of the sliding member 22 is pivotally attached to the distal end side of the rear body 14, but this pivotally attaches to any position of the rear body 14, for example. Is also good. In the present embodiment, the sliding member 22 is provided at one place in a shape obtained by further extending the oval shape toward the longer side, but a plurality of such members may be provided in a rectangular or elliptical shape, for example.
Further, for example, by changing the plate thickness of the long plate-shaped sliding member 22, the front body 12 and the rear body
It is also possible to be able to adjust the bending absorption for the vertical movement 4 in the gap direction.

As shown in FIGS. 1, 2, 4, and 9, the thrust sliding connection mechanism 16 includes a run-out direction adjusting mechanism 18. The swing direction adjusting mechanism 18 adjusts the swing direction in the thrust direction on the front end side of the rear body in accordance with the thrust direction movement on the rear end side of the front body 12 during steering. The swing direction adjusting mechanism 18 includes a plurality of link rods 26 provided on the rear end side of the front body 12 and the front end side of the rear body 14. That is, in the figure, two link rods 26 are provided so as to bridge the left and right ends of the long plate member 34 provided on the rear end side of the front body 12 and the left and right widened portions on the front end side of the rear bottom plate 21 of the rear body 14. Installed. Both ends of this link rod are pivotally connected to the left and right widened portions of the long plate member 34 and the rear bottom plate 21, respectively. Therefore, in the connection portion formed by these link rods, the front body and the rear body freely move in the thrust direction with respect to each other. It is possible.

As clearly shown in FIG. 2, the link rod 26 is provided so as to expand toward the forward direction.
Since the link rod 26 is attached to the rear body 14 toward the front body 12 in an inverted C-shape, the front end side of the rear body 14 itself can be turned in the direction indicated by the steering. It is possible. That is, in the present embodiment, the swing direction adjusting mechanism 18
Without the need for additional external control,
The swing direction is automatically controlled by inertial movement on the rear end side of the front body 12 during steering. That is, when the radio-controlled vehicle 10 travels on a curve, the front wheel 12 is steered in the curve direction so that the front end of the front body 12 is directed toward the curve entrance. The end side slides in the radial direction. At this time, the link rod located on the inner side moves to increase the distance between the front body and the rear body, and the link rod located on the outer side moves to close the distance between both bodies. Therefore, the swing direction is automatically adjusted only by the inertia force without using an external driving force or a control mechanism. In the present embodiment, the left and right link rods 26a and 26b are made of metal rods, and the pivoting portions at both ends are configured to be freely movable in all directions using a universal joint such as a ball joint. Thus, the rear end of the front body and the front end side of the rear body can move in the rolling direction, that is, the body swings right and left in the forward direction.

By the link rods 26a and 26b pivotally connected by a universal joint, the front body 12 and the rear body 14 can be mutually slid in the thrust direction and can be connected to be able to swing in the rolling direction. By sliding the front body 12 and the rear body 14 in the thrust direction with respect to each other, the direction of the rear wheel provided on the rear body 14 can be turned leftward and rightward with respect to the forward direction.

Therefore, the universal joint 32 acts synergistically with the link rod 26 to connect the front body 12 and the rear body 14 slidable in the thrust direction to be swingable in the rolling direction. Can be. During traveling, even when there are many irregularities on the curved road surface, it is possible to absorb vibrations and impacts in the rolling direction, and it is possible to travel while maintaining a stable posture.

In FIGS. 2 to 4, the front body 12 and the rear body 14 have a sliding member 2 at the center.
2. At both ends, the link rods 26a and 26b are connected at three points provided in an expanded shape in the forward direction. Accordingly, thrust sliding between the front and rear sides of the two-part body is realized, and the thrust sliding connection mechanism 16 is made effective by ensuring the connection between them. In other words, to prevent weakening of the divided body,
This is to reinforce. In addition, by arranging the sliding member in the center, the displacement of the vehicle body at the time of sliding and the swinging are suppressed,
The running stability is improved.

In this embodiment, the link rod 26
a and 26b are provided on both left and right sides of the rear end side of the front body 12 and the front end side of the rear body 14,
This may be provided, for example, at three or more places near the center of the front body 12 and the rear body 14. Further, for example, the link rods 26a and 26b
2 may be pivotally connected to the front end side or near the center of the rear body 14. Further, for example, a plurality of holes for standing the universal joint 32 are opened on the rear end side of the front body 12 and the front end side of the rear body 14, and the standing position of the universal joint 32 is changed to change the link rod. You may make it possible to adjust the expanded state of 26a, 26b. In this case, when the link rods 26a and 26b are further expanded, the driving force of the rear body 14 can be more evenly applied to the front body 12 to improve the straight running stability of the vehicle body.

Further, for example, as shown in FIG. 16, tension springs 102 may be stretched on the left and right sides of the rear end of the front body 12 and the left and right sides of the front end of the rear body 14. In this case, a force for always bringing the rear end side of the front body 12 and the front end side of the rear body 14 close can be applied, and the expanded state of the link rods 26a, 26b can be maintained with a constant force. it can. As a result, it is possible to maintain the front body 12 and the rear body 14 in a straight line with a constant force. Therefore, the straight running stability of the vehicle body can be improved, and the vehicle body can be quickly returned to a straight line after the end of the curve running. In FIG. 16, the tension spring 102 is stretched in a C-shape, but it may be stretched in an inverted C-shape or in parallel.

As described above, the front side of the link rod 26 is pivotally connected to both ends of the long plate member 34 as the elastic projection 30 so as to be freely rotatable. As a result, vibrations and impacts in the gap direction generated by unevenness of the road surface during traveling can be reduced by the elastic protrusions 3 from the rear wheels via the link rods 26a and 26b.
Tell 0, 30. At this time, the elastic projections 30, 30
By twisting or vibrating at the tip of the device, vibration and impact in the gap direction can be absorbed. Therefore,
Bouncing of the vehicle body due to vibration or impact can be prevented.

Further, even when a strong impact is applied from the front portion of the front body 12 or the rear portion of the rear body 14, the impact can be absorbed by the elastic projections 30, 30 being twisted. Therefore, the radio control vehicle 10 can be prevented from being damaged to some extent, and its durability can be improved. In the present embodiment, the elastic protrusions 30 and 30 are constituted by the long plate members 34 of the plate-like body, but may be formed integrally with the front body 12, for example. Further, the elastic protrusion 30 may be provided on the upper or lower part of the front body 12. Further, the long plate member 34 may be constituted by a frame or a cylinder. Further, for example, by changing the thickness of the long plate member 34 of the plate-like body, the torsional force and the vibration force of the elastic protrusions 30 and 30 are adjusted, and the front body 12 and the rear body 1 are adjusted.
It is also possible to be able to adjust the absorption of vibration and shock applied before and after step 4. In this case, the connection rigidity between the front body 12 and the rear body 14 can be adjusted in cooperation with the sliding member 22. That is, by increasing the plate thickness of the long plate member 34 and the sliding member 22, the connection strength between the front body 12 and the rear body 14 can be improved.

In this embodiment, as shown in FIGS. 1, 2 and 6 to 8, the front body 12 or the rear body 14 is provided with a damper 44 arranged in the front-rear direction of the body. The damper 44 is provided so as to be able to expand and contract while having a certain pressure in the longitudinal direction. The damper 44 is connected to the front body 12
Alternatively, it has a load-side connecting portion 46 connected to one of the rear bodies 14. And, this load side connecting part 4
6 is set at a position higher in the vehicle height direction than the thrust sliding connection mechanism 16. The front body 12 and the rear body 14 are elastically connected to the vertical movement in the gap direction by a long plate-shaped sliding member 22 attached to the front and rear bottom plates 15 and 21 in the vehicle height direction. However, at a higher position, the elastic force is arranged in the front-rear direction and is damped by a damper 44 that performs a damper action. That is, the front body 12 and the rear body 14 move in a wavy manner in response to the swing in the gap direction, and when the front body 12 and the rear body 14 move close to and away from each other, the connection portion above the front body and the rear body is formed by the damper 4.
Damper damping mechanism 48 which is damped only by the damping force of No. 4
Is provided.

The damper buffer mechanism 48 has a connecting portion 52 connected to the load-side connecting portion 46 and connected to the front body 12 or the rear body 14. A buffering shaft which penetrates through the connecting portion 52 and whose lower end is disposed at the rear end of the front body 12 and is mounted in an upright state, and is supported so as to be able to fall down in the front-rear direction. 50.

As shown in FIGS. 1, 7, and 8, the substrate frame 6
A bearing 64 is fixed to the upper surface side of the rear body 14 near the rear body 14, and a lower end of the buffer shaft 50 extending upward is supported by the bearing so as to be capable of standing upright in the forward direction (the direction indicated by the upper arrow in FIG. 8). I have. On the other hand, at the front end of the support case 54, a rising bracket 56 is integrally connected upward, and a flat plate-like connection plate 51 is further connected and fixed to the bracket 56 forward and horizontally. I have. The connection plate 51 is formed in a racket shape, and a through hole 58 is opened at a substantially central portion. The connection section 52 includes a connection plate 51.

The shock absorbing shaft 50 is engaged through a connecting portion 52 provided on the upper part of the front body 12.
That is, the shock absorbing shaft 50 extends through the through hole 58 of the connecting plate 51 mounted horizontally to extend the upper end side upward. On both sides of the connection plate 51, similarly, a crimping plate 66 having a hole formed in the center position is loosely fitted so as to penetrate the buffer shaft 50 and sandwich the connection plate 51. A spring 70 is stretched over the buffer shaft 50 so as to sandwich the crimping plate 66 from above and below. Thus, the pressure plate 66 is urged against the connection plate 51 from above and below, so that the shock is smoothly absorbed in the swinging movement in the gap or rolling direction of the vehicle body. While maintaining the connection with the robot, the movement accompanying the swinging movement is performed to flexibly buffer the movement. Since various types of swaying motions can be handled while sliding the connection plate 51 and the buffer shaft 50 with an appropriate frictional force, the integrity of the front body and the rear body can be ensured. The front end side of the connection plate 51 is connected to the load-side connection portion 46 of the damper 44 via a connector 72 such as a link pin. The damper 44 is configured as a damper using, for example, spring force, hydraulic pressure and air pressure as buffer elements. The other end of the damper 44, which is different from the load side, is connected to the substrate frame 62 by a universal coupling member 72b. The damper buffer mechanism 48 includes a buffer shaft 50.
And the connection plate 51.

Thus, the vertical movement and the rolling movement of the rear body 14 generated by the vibration and the impact of the road surface are transmitted to the connecting portion 52 through the bracket 56 and the damper 44 surely transmits the impact. It is a buffer. It is not always necessary to provide the crimping board 66 and the spring 70 for giving a certain amount of friction. In this embodiment, the connection portion 52 has a racket shape, but may have another shape such as a rectangular shape or a circular shape. In the present embodiment, the connecting portion 52 is attached to the support case 54 via the rising bracket 56. However, for example, the connecting plate 51 and the rising bracket 56 may be integrally formed. In the figure, reference numeral 68 denotes a crimp adjusting screw provided on the upper portion of the crimping board 66.

The shock absorbing shaft 50 is connected to a connecting portion 52 caused by vibration and impact of the front body 12 and the rear body 14.
Movement can be absorbed. That is, as shown in FIG. 8, when the connecting portion 52 swings back and forth with respect to the forward direction, the buffer shaft 50 also synchronizes with the movement of the connecting plate 51.
A back-and-forth exercise is performed with 4 as a fulcrum. The movement of the connection plate 51 in the front-rear direction is controlled by a load-side connecting portion 46 described later.
Through the damper 44. Also, as shown in FIG. 7, when the connecting portion 52 swings left and right with respect to the forward direction,
With the buffer shaft 50 standing upright, the crimping boards 66a and 66b provided on the buffer shaft 50 move up and down, and the spring 70 expands and contracts. Then, the spring 70 is attached to the connection plate 51 along with the crimping plates 66a and 66b.
Swing can be absorbed. The shock absorbing shaft 50 performs a falling motion by a bearing 64.
An elastic body such as rubber may be used. Further, the buffer shaft 50 may be provided upright and immovably without providing the bearing 64.

Here, when the radio control car 10 is running, the swing in the gap direction generated by vibration or impact from the road surface can be reliably absorbed directly by the damper 44, and a stable running posture can be maintained. It is possible to run while running. In this embodiment, the load-side connecting portion 46 is constituted by the connecting portion 44a of the universal coupling member 72a and the damper 44, and the other end is constituted by the connecting portion 44b of the universal coupling member 72b and the damper 44.

Next, the operation of the radio controlled automobile 10 according to the present embodiment will be described. FIG. 10 shows the radio controlled automobile 10 traveling in a straight-ahead state. When the vehicle is traveling straight, the sliding member 22 faces in the same direction as the forward direction. Locking pin 36 in regulating hole 38
Remains neutral in the center position. At this time, the left and right link rods 26a and 26b are symmetrically expanded in an inverted C shape with the center line 300 interposed therebetween. Since the left and right link rods 26a and 26b are symmetrically expanded with respect to the center line 300, the driving force applied from the rear can be applied stably in the forward direction.

Next, as shown in FIG. 11, when the front wheel 82 is steered to the left, the front portion of the front body 12 starts to turn left. Then, the slide sliding connection mechanism 16 and the runout direction adjusting mechanism 18 start to work synergistically. The link rod 26a approaches an upright state with respect to the forward direction (that is, approaches a direction parallel to the forward direction), and the link rod 26b further expands, whereby the rear end side of the front body 12 and the front end of the rear body 14 are extended. The interval between the sides is widened between the link rods 26a and narrowed between the link rods 26b. In such a state, the front body 12 and the rear body 14 slide and slide relatively in an inverted letter shape in the figure, so that the front wheel 82 and the rear wheel 80 move relative to each other.
Can turn in the opposite direction and make a quick turn. Further, at this time, the locking pin 36 of the restricting portion 28 has moved to the limit to the right of the restricting hole 38, so that the sliding movement width of the sliding member 22 can be restricted. Thereby, the rear body 14
Regulates that the slide sliding movement is excessively inverted. Therefore, the radio-controlled vehicle 10 traveling on a curve can quickly turn to the exit direction of the curve,
These operations can be performed stably.

Next, when the centrifugal force begins to act on the radio controlled automobile 10 traveling on a curve, as shown in FIG. 12, the rear end of the front body 12 is swung in the radial direction by the action of the centrifugal force. Then, the rear end of the front body 12 slides and slides in the radial direction with respect to the rear body 14. At this time, the link rod 26a further expands in the forward direction, and the link rod 26b approaches a standing state. In such a state, the space between the link rods 26a and the space between the link rods 26b become narrower between the rear end of the front body 12 and the front end of the rear body 14. That is, the front body 12 and the rear body 14 can be oriented in the same direction, and the rear wheel 80 can be oriented in the same direction with respect to the front wheel 82. As a result, the rear wheel 80 faces inward of the curve, and a force that turns the rear portion of the vehicle body inward against the centrifugal force acts to prevent the vehicle body from spinning outside the curve. When a driving force is applied to the rear wheels while the rear wheels are facing in the same direction as the front wheels, a force for turning the rear portion of the vehicle body toward the inside of the curve can be further increased. At this time, since the locking pin 36 of the restricting portion 28 has moved to the limit to the left of the restricting hole 38, the sliding movement width of the sliding member 22 can be restricted. This restricts the rear body 14 from sliding excessively in the same direction as the front body 12. Therefore, the vehicle can run stably on a curve at high speed.

Since the free connecting portions provided on both ends of the link rod 26 are connected to the free joint 32 in which the spherical body at the tip is inserted and fitted, the front body 12 and the rear body 14 slide and slide relative to each other. While swinging in the rolling direction with each other. Accordingly, while traveling on a straight line or a curve at a high speed, even when the road surface has many irregularities, it is possible to absorb vibrations and impacts in the rolling direction, and it is possible to travel while maintaining a stable posture.

The link rod 26 connects the elastic protrusion 30 provided at the rear end of the front body 12 and the front end of the rear body 14 via a universal joint 32. When the radio control vehicle 10 receives a strong vibration or impact from the front or the rear, the impact force concentrates on the elastic protrusion 30 via the link rod 26 and the universal joint 32. Then, the elastic projection 30 is pressed by the link rod 26 via the universal joint 32 to cause torsion or vibration. Strong vibration and impact acting on the vehicle body due to the torsion and vibration of the elastic projection 30 can be absorbed, and damage to the vehicle body can be prevented.

When the radio control automobile 10 is repeatedly driven and vibrated or shocked by running at high speed, the front body 12 and the rear body 14 move close to and away from each other, and the damper buffer mechanism 48 operates. That is, the connection plate 51 provided above the center position on the front end side of the rear body 14 swings in the front-rear direction or the left-right direction in synchronization with the movement of the rear body 14. When the connecting plate 51 swings back and forth with respect to the forward direction, the load-side connecting portion 46
As a result, the damper 44 connected to the connection plate 51 performs the expansion and contraction movement. At this time, the shock absorbing shaft 50 that penetrates and engages the connection plate 51 performs a falling motion in synchronization with the vertical swing of the connection plate 51, so that the front body 12 and the rear body 14
Can be directly transmitted to the damper 44. When the rear body 14 swings in the rolling direction with respect to the front body 12, the connecting plate 51 also swings in the rolling direction. Then, the crimping board 66 provided above and below the buffer shaft 50 moves up and down, and the spring 70 provided above and below the crimping board 66 expands and contracts. The swing of the connecting plate 51 in the rolling direction can be absorbed by the expansion and contraction of the spring 70. At this time, the buffer shaft 50 maintains the upright state. Therefore, vibrations and impacts acting on the vehicle body due to unevenness of the road surface can be instantaneously and reliably absorbed.

Therefore, the radio control vehicle 10 automatically controls the swing direction by inertial movement of the rear end side of the front body 12 during steering, and does not need any external control, so that the vehicle can travel on a curve at high speed. Also, the running posture can be maintained in a more stable state, and spin can be prevented particularly during high-speed running. Thus, it is not necessary to suddenly decrease the speed immediately before the curve, and it is possible to turn the curve in a stable state while maintaining a high speed. In addition, even if the traveling road surface has some unevenness, it is possible to stably travel at a high speed on a straight line or a curve without disturbing the traveling posture.

Next, another embodiment of a damper and a damper damping mechanism for a radio controlled automobile according to the present invention will be described.
The description is omitted. FIGS. 14 and 15 show another embodiment of the damper and the damper damping mechanism of the radio controlled automobile according to the present invention. As is clear from FIGS. 14 and 15, in the present embodiment, the front bottom plate 15, the rear bottom plate 21 of the front body 12 and the rear body 14,
Thrust sliding connection mechanism 16, sliding member 22, long plate member 3
The configuration of the fourth embodiment is the same, and the connection configuration of the sliding member 22, the rear body 14, and the link rod 26 and the connection configuration of the expanded link rod 26 in the traveling direction are the same as those of the above-described embodiment. is there.

In this embodiment, the front body 1
There are provided a plurality of dampers 44 that exert a buffering force in response to movements in the reverse direction and the rolling direction with respect to the rear body 2 and the rear body 14. Further, a damper buffer mechanism corresponding to the above embodiment is not provided. Therefore, the configuration of the damper action by the damper 44 is extremely simple. FIG.
In FIGS. 4 and 15, two dampers 44, 44 are provided on both ends on the rear side of the substrate frame 62 and on the upper surface of the support case 54 so as to expand in the traveling direction. That is, 2
The individual dampers 44, 44 are installed so as to form an inverted C-shape in the traveling direction. The respective ends of the dampers 44 are connected to each other by the above-described universal joint which performs a joint function of freely moving in a forward direction by a ball joint structure, for example.

Therefore, as shown in FIGS. 14 and 15, the inverted C-shaped dampers 44 are mounted so as to form an inverted C-shape parallel to the link rod 26 described above. These dampers 44, 44 are mounted in an inverted C-shape, and expand and contract in an inverted C-shape in response to swinging in the gap direction or movement during rolling. Therefore, since the expansion / contraction buffering action spreads in the direction that spreads in the traveling direction or crosses the retreating direction and spreads further, it is possible to reliably provide uniform buffering with particularly excellent running stability. Become.

Although two dampers 44 are provided in this embodiment, three or more dampers may be provided. In addition, not only is it installed in an inverted C shape, but also the damper 4
4 and 44 themselves may be formed in a C-shape with respect to the traveling direction. In this case, the damper damping force is directly exerted without functioning as the friction damper described above, and a complicated structure of the damper damping mechanism is not required. Therefore, the manufacturing cost can be reduced because the manufacturing is easy.

The radio-controlled vehicle according to the embodiment of the present invention is not limited to the above-described embodiment, but may be arbitrarily modified without departing from the essence of the invention described in the claims. is there.

[0073]

As described above, according to the radio control vehicle of the first aspect, the entire body is divided into two parts, the front side and the rear side, and the front body and the rear side are arranged on the front side. The front body and the rear body are provided with a thrust sliding connection mechanism for connecting at least relatively freely in the thrust direction, and the thrust sliding connection mechanism is provided at the time of steering. The front body and the rear body include a deflection direction adjustment mechanism that adjusts the deflection direction of the front end of the rear body in the thrust direction in accordance with the thrust direction movement of the rear end of the front body.
As a result of being able to slide relatively in the thrust direction and adjust the thrust direction in the thrust direction on the front end side of the rear body, it is possible to maintain a running posture in a more stable state, especially when running on a curve, and at a high speed Even at times, it is possible to travel with less occurrence of spin-out. In addition, it is possible to automatically control the rear wheels so that you can run in the most stable position, you can maximize the speed on straight roads, and you do not need to reduce the speed very near the curve It is possible to turn a curve in a stable state while maintaining a high speed. Also, since the body is divided into two parts, the swing direction of the rear body is adjusted in that state, unlike the four-wheel steering device integrated with the body, the swing direction on the rear body side is definitely determined and the turning stability in curve running is improved. It is possible to improve.

According to a second aspect of the present invention, the swing direction adjusting mechanism is bridged between the front body and the rear body, and both ends thereof are pivotally connected to each other, and expands in the forward direction. Includes multiple link rods provided in a shape, so that these link rods can be used to automatically adjust the deflection direction during running direction change without the need for an external control mechanism or drive mechanism It is. Therefore, the direction of the rear wheels can be automatically adjusted so that the vehicle can run in the most stable posture, which allows the speed to be maximized on straight roads and further eliminates the need to rapidly reduce the speed immediately before the curve. It is possible to turn a curve in a stable state while maintaining high speed.

According to the third aspect of the present invention, the swing direction adjusting mechanism automatically adjusts the swing direction by inertial movement of the rear end of the front body during steering without requiring external control. This eliminates the need to mount control equipment for controlling the direction of deflection and a power supply for driving these control equipment, making it possible to reduce the weight by that much, and to achieve four-wheel steering with a simple configuration. It can be performed. Therefore, the inertia force acting on the running radio-controlled vehicle can be reduced, spin-out at the time of turning can be prevented, and acceleration at the time of starting does not deteriorate. Then, a radio-controlled vehicle equipped with a four-wheel steering device can be implemented at low cost. In addition, since the driver of the radio control car is released from the operation of correcting the running posture little by little, in a race or the like, it is possible to concentrate on running at a desired speed.

According to the radio controlled vehicle of the fourth aspect, the thrust sliding connection mechanism is provided to be long in the front-rear direction at a substantially central position in the width direction of the front body and the rear body, and the front and rear thrust slide connection mechanisms are provided. Since the body and the rear body are provided with sliding members that are pivotally supported at both ends, it is possible to secure movement in the thrust direction in both directions of the front body side and the rear body side, while simultaneously maintaining the integral connection between the two. Is possible. When the sliding member is attached to the lower surfaces of the front body and the rear body, the sliding member itself can flexibly absorb and move up and down the gap in the gap direction.
Since the sliding member connects the front body and the rear body in the front-rear direction at the center position, the connection balance is extremely good, and the sliding movement in the thrust direction can be performed smoothly and in a well-balanced manner.

According to a fifth aspect of the present invention, two link rods are disposed at both ends in the width direction of the front body and the rear body, and the sliding member is located at an intermediate position between the link rods. The front body and the rear body are connected at three points: a sliding member at the center and a link rod at both ends, so that they maintain a stable connection function and slide in the thrust direction at the same time. It is possible to carry out while maintaining the strength. Since the sliding member and the link rod act synergistically, it is possible to reliably control the direction of the rear wheel with respect to the front wheel in the same direction or in the opposite direction. While maintaining the connection and thrust function of the link rod, the link rod corrects the direction of the joint and the direction of the link rod at the time of direction change effectively turns the rear body to the center direction of the curved arc activation accompanying the inertia force by the action of the inertia force Is possible. Therefore, it is possible to prevent the rear wheel from spinning to the outside of the curve due to the centrifugal force, and it is possible to travel at a high speed on the curve.

According to the radio controlled vehicle of the present invention, the front body is provided with elastic projections projecting at both ends in the width direction, and the link rod is attached to the front body at the elastic projection. As a result, the elastic projections absorb the vibrations and shocks in the gap direction generated by unevenness of the road surface during traveling to some extent, so that the ground contact of the wheel with the road surface can be improved. The stable running posture of the radio control car can be maintained. Therefore, it is possible to realize high-speed traveling by increasing the high-speed stability. Furthermore, even if a strong impact is applied from the front part of the front body or the rear part of the rear body, it is possible to absorb the impact by twisting the elastic projection,
The radio control vehicle can be prevented from being damaged to some extent, and its durability can be improved.

According to the radio controlled vehicle of the present invention, the thrust sliding connection mechanism has a regulating portion for regulating a relative thrust direction movement width of the front body and the rear body. The movement of the rear body with respect to the thrust direction can be restricted so as not to exceed a certain width, so that the deflection of the vehicle body caused by excessively changing the direction of the rear wheel can be prevented. Therefore, it becomes possible for the radio control car to run quickly and stably on a curve.

Further, according to the radio controlled vehicle of the present invention, the regulating portion is provided upright at the regulating hole provided at the rear end of the front body and the sliding member, and is fitted through the regulating hole. The locking pin is provided so that the movement of the rear body in the thrust direction with respect to the front body is restricted by the movement of the locking pin that is inserted through the restriction hole so that it does not move beyond a certain width. It is possible to prevent the vehicle body from swinging due to an excessive change in the direction of the rear wheels. In addition, the regulation section can be realized with a simple configuration.

According to the ninth aspect of the present invention, the regulating hole is disposed at the rear end of the front body, so that when the front body and the rear body relatively move in the thrust direction, the movement of the regulating body is reduced. By restricting the movement of the rear body by providing a regulating hole at the rear of the most intense front body, it is possible to reliably perform relative thrust sliding movement of the front body and the rear body, and the running radio controlled car on the road surface Even if the vehicle slightly vibrates depending on the situation, a stable running posture can be reliably maintained. Therefore, it is possible to travel at a high speed while maintaining a stable posture on a curve or a straight line.

According to a tenth aspect of the present invention, the plurality of link rods are pivotally connected by a universal joint, and the front body and the rear body are provided so as to be swingable in a rolling direction. Therefore, even when there are many irregularities on the road surface, it is possible to absorb vibrations and impacts in the left and right swing directions, that is, in the rolling direction, and to travel while maintaining a stable posture. Especially when traveling on a curve, even if a small amount of vibration or impact is applied, the vehicle body will be shaken in the radial direction due to the effect of centrifugal force. can do. In addition, by absorbing vibrations from the road surface, it becomes possible to improve the durability of the radio control vehicle.

According to the radio control vehicle of the eleventh aspect, the front body or the rear body is provided with a damper disposed in the front-rear direction of the body, and the damper is provided for either the front body or the rear body. The load-side connecting part is set at a higher position in the vehicle height direction than the thrust sliding connecting mechanism, and corresponds to the swing in the gap direction. When the front body and the rear body move close to and away from each other, a damper damping mechanism is provided that is damped only by the damping force of the damper, so that vibrations from the road surface can be reliably absorbed by the damper,
It is possible to run while maintaining a stable posture. And by absorbing the vibration from the road surface,
The durability of the radio control car can be improved. Further, it is possible to drive at high speed while maintaining the most ideal state of the vehicle body corresponding to each road surface.

According to a twelfth aspect of the present invention, the damper buffering mechanism has a connecting part connected to the load-side connecting part and connected to a front body or a rear body. The front body includes a shock-absorbing shaft which is penetrated and has a lower end disposed on a rear end side of the front body, mounted in an upright state, and supported so as to be able to fall down in the front-rear direction. Therefore, when the radio-controlled vehicle is running, the vibration from the road surface can be directly absorbed by the damper, and therefore, the vibration acting on the vehicle body can be instantaneously and reliably absorbed. Therefore, the traveling posture can be maintained in a stable state at all times, and the vehicle can travel smoothly and quickly especially when traveling on a curve.

According to a thirteenth aspect of the present invention, a plurality of dampers are erected around the front body or the rear body, and one of these dampers is arranged so that the directions of expansion and contraction intersect. Therefore, the vibration and impact acting on the running vehicle body can be absorbed only by the intersecting dampers without requiring a complicated structure, so that a stable running posture can be maintained.

[0086] According to the radio control vehicle of the present invention, since any one of the dampers is provided so as to expand toward the traveling direction, the swing direction of the rear wheels during the curve running is reliably controlled. However, when the vehicle is traveling straight, the expanded damper transmits the driving force uniformly, so that more excellent straight traveling stability can be realized.

[Brief description of the drawings]

FIG. 1 is a partially omitted overall explanatory view of a radio controlled vehicle according to an embodiment of the present invention.

FIG. 2 is a plan view of the radio controlled automobile according to the embodiment of the present invention.

FIG. 3 is a rear view of the radio control vehicle according to the embodiment of the present invention.

FIG. 4 is an explanatory perspective view of a main part of a shake direction adjusting mechanism.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is an operation explanatory view showing a swinging state in the rolling direction on the rear body side.

FIG. 7 is an enlarged sectional explanatory view of a main part showing a state of a shock absorbing shaft in a swinging state in a rolling direction.

FIG. 8 is an explanatory cross-sectional view of a main part, showing a swinging state of a front body and a rear body in a gap direction from a side.

FIG. 9 is a view taken along line BB of FIG. 8;

FIG. 10 is an operation explanatory view showing a state of a front body and a rear body during straight traveling.

FIG. 11 is an operation explanatory view showing states of the front body and the rear body when the front wheels start to turn leftward from straight ahead.

FIG. 12 is an operation explanatory view showing a state of the front body and the rear body when the front wheels are steered to the left and the rear end of the front body moves in the radial direction.

FIG. 13 is an explanatory sectional view showing a state in which an elastic member is provided on a sliding member.

FIG. 14 is a partially omitted perspective explanatory view of a damper and a damper buffer mechanism according to another embodiment.

FIG. 15 is an overall explanatory view showing a damper and a damper buffer mechanism according to another embodiment.

FIG. 16 is an explanatory diagram showing a state where a tension spring is stretched between a front body and a rear body from a plan view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Radio control car 12 Front body 14 Rear body 16 Thrust sliding connection mechanism 18 Runout direction adjusting mechanism 22 Sliding member 26 Link rod 28 Restriction part 30 Elastic projection part 32 Universal joint 36 Lock pin 38 Restriction hole 40 Restrictor 44 Damper 46 Load side connection mechanism 48 Damper buffer mechanism 50 Buffer shaft 52 Connection part

Claims (14)

(57) [Claims] 1. A front body, which is formed by dividing an entire body into two parts, a front side and a rear side, and includes a front body disposed on a front side, and a rear body disposed on a rear side. And a rear body is provided with a thrust sliding connection mechanism for connecting at least relatively freely in the thrust direction, and this thrust sliding connection mechanism corresponds to the thrust direction movement of the rear end side of the front body during steering. And a swing direction adjusting mechanism for adjusting a swing direction in a thrust direction at a front end side of the rear body. 2. The swing direction adjusting mechanism includes a front body and a plurality of link rods extending over the front body and having both ends pivotally attached to the rear body and provided in an expanding shape in a forward direction. The radio controlled vehicle according to claim 1, wherein: 3. The swing direction adjusting mechanism according to claim 1, wherein the swing direction is automatically controlled by inertial movement of the rear end of the front body during steering without requiring external control. Or, the radio controlled vehicle according to 2. 4. The thrust sliding connection mechanism is provided to be long in the front-rear direction at a substantially central position in the width direction of the front body and the rear body, and both ends are pivotally supported by the front body and the rear body. The radio controlled automobile according to any one of claims 1 to 3, further comprising a sliding member. 5. The link rod according to claim 2, wherein two of said link rods are arranged at both ends in the width direction of a front body and a rear body, and said sliding member is arranged at an intermediate position between said link rods. A radio-controlled vehicle according to any of the above. 6. The front body is provided with elastic projections protruding at both ends in the width direction, and the link rod is attached to the front body by pivotal connection at the elastic projections. A radio-controlled vehicle according to any one of claims 2 to 5. 7. The radio controlled vehicle according to claim 1, wherein said thrust sliding connection mechanism includes a regulating portion for regulating a relative thrust direction movement width of said front body and rear body. 8. The restricting portion includes a restricting hole provided on a rear end side of the front body, and a locking pin erected on the sliding member and attached through the restricting hole. The described radio controlled car. 9. The radio controlled automobile according to claim 8, wherein said restriction hole is arranged at a rear end side of said front body. 10. The system according to claim 2, wherein the plurality of link rods are pivotally connected by a universal joint, and the front body and the rear body are provided so as to be swingable in a rolling direction. Radio control car. 11. The front body or the rear body is provided with a damper disposed in a front-rear direction of the body, and the damper has a load-side connecting portion connected to either the front body or the rear body. The load-side connecting portion is set at a higher position in the vehicle height direction than the thrust sliding connecting mechanism, and the front body and the rear body move close to and away from each other in response to the swing in the gap direction. A damper damping mechanism that is sometimes damped only by the damping force of the damper is provided.
The radio-controlled vehicle according to item 0. 12. The damper damping mechanism has a connection portion connected to the load-side connection portion and connected to a front body or a rear body. The connection portion penetrates the connection portion and has a lower end side. The radio-controlled vehicle according to claim 11, further comprising a shock-absorbing shaft disposed at a rear end of the front body, mounted in an upright state, and supported so as to be able to fall down in the front-rear direction. 13. The system according to claim 1, wherein a plurality of dampers are bridged over the front body or the rear body, and one of the dampers is arranged so that the directions of expansion and contraction intersect. The described radio controlled car. 14. The radio controlled vehicle according to claim 13, wherein any one of the dampers is provided in an expanding shape in a traveling direction.