JP4344535B2 - Car toy rear wheel suspension system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an automobile toy, particularly an automobile toy that runs by radio control, and a tire house whose rear wheel is a body even if the subchassis swings upward with respect to the main chassis due to road surface unevenness during running. The present invention relates to a suspension device for a rear wheel side of an automobile toy that does not come into contact with the vehicle.
[0002]
[Prior art]
As a conventional rear wheel suspension mechanism in an automobile toy, the rear wheel is configured to be displaced only in the vertical direction using a double wishbone. The sub-chassis to which the rear wheel is attached is connected by an elastic extension piece extended from the sub-chassis having elasticity. Therefore, when the sub-chassis is raised with respect to the main chassis due to road surface unevenness, the sub-chassis moves in an arc with respect to the main chassis (see, for example, Non-Patent Document 1).
[0003]
[Non-Patent Document 1]
Ltd. Publisher “RC Car & Parts Catalog 2002” published on January 30, 2002, page 143 [0004]
[Problems to be solved by the invention]
By the way, as described above, when the sub-chassis moves in an arc with respect to the main chassis, if a wide tire is equipped, the tire may come into contact with the front side of the tire house on the body side. The outer shape of the tire house must be opened in a circular arc shape deformed toward the front, which is not preferable as this type of car toy imitating an actual vehicle. In general, the tire and the upper arc portion of the tire house are not in contact with each other because the distance is long.
[0005]
The present invention is intended to solve the above-mentioned problems, and the object of the present invention is to displace the tire only in the vertical direction with a simple configuration. It is an object of the present invention to provide a rear wheel side suspension device for an automobile toy in which the tire does not come into contact with the tire house because the tire house is displaced only in the vertical direction of the tire house having a gap.
[0006]
[Means for Solving the Problems]
The rear wheel side suspension apparatus of the toy of the present invention is intended to achieve the above-mentioned object, and the means of claim 1 includes a main chassis equipped with front wheels and a receiver, and a U-shaped left and right side plate. A sub-chassis having a long hole in the direction, a driving source, a rotating shaft that is rotated by the driving source, and the rotating shaft that is rotatably supported, and the rotating shaft is inserted into the long hole of the sub-chassis A drive device having a housing, a suspension attachment member attached to the housing, a suspension member stretched between the suspension attachment member and the sub-chassis, and the main chassis of the drive device a ball member which is formed to protrude from the bottom surface side, mounted on the main chassis at a position opposing the said ball member being rotatable said ball member And, characterized by being composed of a bearing member having a through hole for slidably supported in the longitudinal direction.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view with a body of an automobile toy according to an embodiment of the present invention removed.
[0009]
In FIG. 1, a main chassis 1 is provided with a receiver box 2 that houses a receiver that receives a control signal in the center of the upper surface, and a servo box that houses a steering servo in front of the receiver box 2. 3 and a battery box 4 in which a battery for supplying power is accommodated is provided behind the receiver box 2. A front wheel 16 is attached to the front side of the main chassis 1 via a front wheel side suspension device 11. A driving device 23 to which a rear wheel 28 is attached is attached to the sub chassis 22 fixed to the main chassis 1 so as to be movable only in the vertical direction with respect to the sub chassis 22.
[0010]
2, 3 and 4 are perspective views showing the configuration of the front wheel side suspension device. The front wheel side suspension device will be described with reference to FIG.
[0011]
The front-wheel-side suspension device 11 includes an arch portion 1a that is attached to the left and right side surfaces on the front end side of the main chassis 1 so as to be position-adjustable with respect to the left and right directions, A fixing member 1b attached to the fixing member 1b, a swinging member 12 having a shaft 12a rotatably attached to the fixing member 1b, and left and right sides of a mounting piece 12b formed integrally with the swinging member 12. A first support member 13 attached to the arch portion 1a, a second support member 14 attached to the arch portion 1a so as to be pivotable in the vertical direction while maintaining a desired distance from the first support member 13, and a first support member Steering member 15 to which a front wheel 16 supported rotatably is attached between the front end portions of 13 and the second support member 14, and a suspension member stretched between the second support member 13 and the arch portion 1a. With 18 It is.
[0012]
Wherein at least the mounting piece 12b of the swing member 12 is constituted by a member having elasticity, also it is capable of changing the elastic force by changing the magnitude of the elastic adjusting hole 12b _1. A plurality of holes 12b ₂ for changing the mounting position of the first support member 13 are formed in the left-right direction of the mounting piece. A front wheel 16 is attached to the steering member 15, and the left and right steering members 15 are connected to a tie rod 17 that moves left and right by a steering servo.
[0013]
The front-wheel-side suspension device 11 configured in this way receives the impact from the unevenness of the road surface applied to each front wheel 16 while second ends of the mounting pieces 12b to which the first support members 13 are mounted are bent in the vertical direction. As the support member 14 rotates in the vertical direction, each suspension member 18 functions independently to absorb the impact.
[0014]
Further, the swinging member 12 swings in the vertical direction about the shaft 12a as a fulcrum through the steering member 15 due to the impact from the road surface unevenness applied to each front wheel 16, and the second support member 14 also via the steering member 15 Rotate up and down. At this time, the mounting piece 12b is made of a material having elasticity, and, together with the bends in the vertical direction by the elastic adjusting holes 12b _1, the suspension member 18 is suspended between the first support member 13 and the arch portion 1a Therefore, the shock absorber is in a relatively strong state, and it is possible to improve the turning performance by preventing the roll in which the posture of the vehicle is inclined due to the centrifugal force during the turning.
[0015]
In the above-described embodiment, the case where the mounting piece 12b of the oscillating member 12 is configured to have elasticity has been described. However, as another embodiment, the mounting piece 12b is fixed to the mounting piece 12b. Even if the first support member 13 is constituted by a member having elasticity, and the first support member 13 is elastically displaced with respect to the mounting piece 12b, the above-described effects can be obtained.
[0016]
In recent years, there is a case where a chassis is replaced with a body having a different size (horizontal width) to enjoy a game. In this embodiment, the first support arm 13 is While changing the position of the hole 12b ₂ formed in the mounting piece 12b and mounting it by changing the mounting position of the arm portion 1a with respect to the main chassis 1, the distance between the front wheels 16 can be changed to have different sizes. It is possible to correspond to any body.
[0017]
5, FIG. 6, FIG. 7, and FIG. 8 are perspective views showing the configuration of the rear wheel side suspension device. The rear wheel side suspension device will be described with reference to FIG.
[0018]
The rear wheel side suspension device 21 (see FIGS. 7 and 8) has a U-shape with a front end portion opened to the lower side in front view attached to the rear end portion of the main chassis 1, and has a vertical length on the left and right side plates 22b. A sub-chassis 22 in which a hole 22c is formed, a driving device 23 including a driving source such as a motor and a differential gear connected to an output shaft of the driving source, and a bottom surface of the driving device 23 on the side facing the main chassis 1 A ball member 24 as a connecting member formed projecting from the suspension, a suspension mounting member 25 for stretching a suspension member 26 between the sub-chassis 22 and the driving device 23, and a main member at a position facing the ball member 24. The ball member 24 is provided on the chassis 1 side and supports the ball member 24 so as to be rotatable and slidable in the front-rear direction. It is composed of a bearing member 27.
[0019]
As shown in FIG. 5, the sub-chassis 22 includes both a top plate portion 22a and both ends of a housing 23a that pivotally supports a rotary shaft 23c that is rotated by a drive source of the drive device 23 at both ends of the top plate portion 22a. And a side plate 22b in which a long hole 22c is inserted.
[0020]
Further, as shown in FIG. 6, in the driving device 23, a key 23b for engaging the key groove of the suspension mounting member 25 is formed on the outer peripheral surface of the housing 23a, and both ends of the rotating shaft 23c protruding from the housing 23a. Is provided with a rear wheel mounting portion 23d for attaching the rear wheel 28. Further, as shown in FIG. 5, the bearing member 27 is provided with a hook portion 27b for rotatably mounting the battery fixing member 41 of the battery box 4 shown in FIG.
[0021]
In order to insert the rotating shaft 23c of the driving device 23 into the elongated hole 22c of the subchassis 22, the rear wheel mounting portion 23d attached to the rotating shaft 23c is removed and the suspension is attached in this state. The member 25 is fixed in alignment with the key 23b. Then, the suspension member 26 is stretched between the sub-chassis 22 and the suspension attachment member 25, and the rear wheel attachment portions 23d are attached so as to be in the state shown in FIG. When the ring 28 is attached, the state shown in FIG. 8 is obtained.
[0022]
8 shows a state in which the ball member 24 is engaged with a bearing member 27 that is rotatably and slidably mounted. The bearing member 27 is fixed to the main chassis 1 side. Is. That is, by fixing the bearing member 27 to the rear end portion of the main chassis 1 and inserting the ball member 24 into the through hole 27a of the bearing member 27, as shown in FIG. The side suspension device 21 can be attached.
[0023]
In the rear wheel side radio control device 21 configured as described above, the ball member 24 is supported by the bearing member 27 so as to be rotatable and slidable in the front-rear direction. When the inside of the long hole 22c rises, the ball member 24 moves backward in the through hole 27a of the bearing member 27, so that the drive device 23 rises linearly along the long hole 22c without drawing an arc. To do.
[0024]
Further, when the housing 23a descends in the long hole 22c, the ball member 24 moves forward in the through hole 27a of the bearing member 27, so that the driving device 23 does not draw an arc and linearly forms the long hole. It descends along 22c.
[0025]
Accordingly, since the tire is displaced only in the vertical direction with a simple configuration, the tire is displaced only in the vertical direction of the tire house having a large gap due to the unevenness of the road surface while traveling on the road surface. Since the suspension member 26 is stretched between the sub chassis 22 and the drive source 23, it is possible to absorb the impact from the road surface unevenness applied to the rear wheel 28.
[0026]
【The invention's effect】
As described above, according to the present invention, there is provided a connection mechanism for connecting a rear wheel side suspension device to which a drive device is attached to a main chassis equipped with front wheels, a receiver and the like, The sub-chassis fixed to the sub-chassis is formed with a vertically long slot through which a rotating shaft that is rotated by a driving force from a driving source in the driving device is inserted, and the rear wheel suspension device includes a main chassis and Since the ball member protrudes and is formed on the front end of the connection side, on the other hand, on the main chassis side is formed a bearing member that supports the ball member to be rotatable and slidable in the front-rear direction. During running on the road surface, the tire is displaced only in the vertical direction of the tire house having a large gap due to the unevenness of the road surface, so that the tire does not contact the tire house. .
[0027]
Further, since the suspension member is stretched between the sub-chassis and the driving source, it has an effect of being able to absorb the impact from the road surface unevenness applied to the rear wheel.
[Brief description of the drawings]
FIG. 1 is a perspective view in which a body of an automobile toy according to an embodiment of the present invention is removed.
FIG. 2 is a perspective view showing a configuration of a front wheel side suspension device.
FIG. 3 is a perspective view showing a configuration of a front wheel side suspension device.
FIG. 4 is a perspective view showing a configuration of a front wheel side suspension device.
FIG. 5 is a perspective view showing a configuration of a chassis connecting mechanism.
FIG. 6 is a perspective view showing a configuration of a chassis connecting mechanism.
FIG. 7 is a perspective view showing a configuration of a chassis connecting mechanism.
FIG. 8 is a perspective view showing a configuration of a chassis connecting mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main chassis 2 Receiver box 16 Front wheel 21 Chassis connection mechanism 22 Subchassis 22c Long hole 23 Drive source 23c Rotating shaft 24 Ball member 26 Suspension member 27 Bearing member 27a Through hole 28 Rear wheel

Claims (1)

A main chassis equipped with front wheels and receiver,
A sub-chassis in which a vertical hole is formed in the U-shaped left and right side plates;
A drive source having a drive source, a rotary shaft that is rotated by the drive source, a housing that rotatably supports the rotary shaft, and the rotary shaft can be inserted into the elongated hole of the sub-chassis;
A suspension attachment member attached to the housing;
A suspension member stretched between the suspension attachment member and the sub-chassis;
A ball member formed to protrude from the bottom surface of the drive device facing the main chassis;
A bearing member attached to the main chassis at a position facing the ball member, and having a through hole that supports the ball member so as to be rotatable and slidable in the front-rear direction;
A rear wheel side suspension device for an automobile toy characterized by comprising

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