JP4301856B2 - Car toy suspension device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile toy, particularly an automobile toy that travels by radio control, and even when attached to a different body, the front wheel does not come into contact with the replaced tire house, and the spring pressure of the spring is reduced. The present invention relates to a suspension device for an automobile toy that can be changed without exchanging.
[0002]
[Prior art]
In recent years, automobile toys that are driven by radio control have been used with the same chassis and enjoyed games by exchanging the body with other products. In addition, when the course to be played has many curves that turn sharply, such as hairpin curves, the suspension spring is replaced with a spring having a strong spring force to enjoy the game.
[0003]
[Patent Literature]
Japanese Patent Laid-Open No. 5-329274
[Problems to be solved by the invention]
By the way, the size of the arc of the opening in the tire house differs depending on the type, that is, the opening arc of the tire house in a sports type automobile is small, and the opening arc of a general passenger car type tire house is large. Is common. Therefore, when the chassis of the purchased car toy is a passenger car type, the amount of vertical movement of the front wheel is set large, so if you replace it with a sport type body, it will be necessary to drive the front wheel during driving, especially during cornering. However, there has been a problem that it is impossible to make a quick turn by contacting the arc of the opening of the tire house.
[0005]
In order to make cornering smooth, it is necessary to replace the spring with a spring pressure suitable for the curve R. To change the spring pressure depending on the spring, prepare many springs with different spring pressures. Therefore, it is necessary to select and replace the spring having the optimum spring pressure. Thus, preparing a large number of springs having different spring pressures has a problem of increasing costs.
[0006]
The present invention is intended to solve the above-described problems. The object of the present invention is to adjust the amount of vertical movement of the front wheel by replacing a low-cost product. An object of the present invention is to provide a suspension system for an automobile toy that can adjust the pressure.
[0007]
[Means for Solving the Problems]
The suspension device for an automobile toy according to the present invention achieves the above-described object, and the means of claim 1 is configured such that a steering member having a front wheel rotatably supported by a pin is mounted on a chassis-side shaft supporting member together with a spring. A suspension that is pivotally supported,
Wherein between the steering member and the spring, the spring compression ring that is inserted into the spring support member and the tubular portion comprising a said spring is formed in a cylindrical portion and the cylindrical portion and one body to be inserted pedestal portion mounting, can be used to adjust the amount of movement in the vertical direction of the steering member by a length of the cylindrical portion is changed to a different spring supporting member, also the spring pressure of the spring by changing to a different spring compression ring thick It is designed to be variable.
[0008]
According to a second aspect of the present invention, in the first aspect, the spring support member and the spring compression ring are integrated .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of an automobile toy steering device according to the present invention will be described with reference to the drawings showing only the chassis side of the automobile toy with the body removed.
Reference numeral 1 denotes a main chassis, and a receiver box 1a in which a receiver is accommodated is formed at the center of the upper surface, and a servo box 1b in which a steering servo is accommodated is formed in front of the receiver box 1a. Battery boxes 1c are formed on the left and right sides of the receiver box 1a to accommodate the batteries 2 (two on the left and right in the embodiment).
[0010]
Reference numeral 3 denotes a sub-chassis to which a drive body 4 including a drive source such as a motor and a differential gear connected to an output shaft of the drive source is attached. A rear wheel 5 is attached to the output shaft of the drive body 4. ing. The subchassis 3 is attached to the main chassis 1 by a relatively elastic member (not shown) protruding from the lower surface side.
[0011]
A suspension 5a is attached between the driver 4 and the receiver box 1a to absorb the rear wheels moving up and down during travel. The sub-chassis 3 is slidable with respect to the main chassis 1 and is attached so as to be fixed at a predetermined position so that the distance between the wheel bases of the front and rear wheels can be adjusted.
[0012]
Next, details of the steering device 6 and the suspension device 8 for the front wheels 9 installed on the front side of the receiver box 1a will be described with reference to FIGS.
The steering device 6 includes a tie rod 6a that moves in the left-right direction in FIG. 3 by being connected to a servo in the servo box 1b, and a support member 6b that slidably supports the tie rod 6a on the servo box 1b. Has been.
[0013]
A ring portion 6a ₁ is formed on both ends of the tie rod 6a to be inserted into a steering rod 8b ₂ of a steering member 8b to be described later, and a servo drive shaft 1b ₁ accommodated in the servo box 1b is provided on the back side. engaging pieces 6a ₂ to be engaged is formed (see FIG. 3).
[0014]
The support member 6b is formed in a U-shape, and both end portions of the tie rod 6a are inserted into the bent piece side and engaged with claws 1b ₂ formed to protrude from both side surfaces of the servo box 1b. An engagement hole 6b ₁ is formed.
[0015]
As shown in FIG. 4, the suspension device 8 includes a steering member 8b which is rotatably attached by a pin 8a to a pair of upper and lower shaft support members 1d formed on the left and right of the servo box 1b, and the steering member 8b is a support member. A spring support member 8c, a spring compression ring 8d, and a spring 8e are interposed by a pin 8a between the upper side of the steering member 8b and the support member 1d when attached to 1d. Incidentally, 8f is C washer for preventing the escape of the pin 8a engaged pins 8a in the ring groove 8a ₁ of the pin 8a in a state of being through the upper supporting member 1d.
[0016]
An axle 8b ₁ protruding in the horizontal direction is formed from the steering member 8b, and a front wheel 9 is rotatably supported on the axle 8b ₁ by a retaining ring 9a. Further, a steering rod 8b ₂ is formed so as to protrude from the steering member 8b in the vertical direction, and this steering rod 8b ₂ is inserted into the ring portion 6a ₁ of the tie rod 6a.
[0017]
Next, the operation of the steering device 6 will be described. Since the tie rod 6a is slidably attached by a support member 6b that can be detachably attached to the servo box 1b, the servo is steered from the receiver. When the drive shaft 1b ₁ slides in response to the signal, the tie rod 6a correspondingly slides left and right. Thus, since the steering member 8b steering rod 8b ₂ is pivotally supported on the ring portion 6a ₁ of the tie rod 6a is rotated pin 8a as a fulcrum, a front wheel attached to the axle 8b ₁ of the steering member 8b 9 Is swung in the left-right direction, and thus swivels in the left-right direction.
[0018]
By the way, in the case of an automobile toy, the length of the tie rod 6a is generally set so that the left and right front wheels 9 are parallel to each other. If there is a lot of roads, it is desirable to set toe-out (front wheel front opening) to improve cornering stability. On the other hand, for courses with many straight lines, toe-in (front wheel front closing) is recommended. It is desirable to set.
[0019]
By the way, conventionally, it is common that the toe-out and toe-in cannot be changed as described above. Some toe-outs and toe-ins can be changed, but they are connected to the steering member via a screw rod whose length can be adjusted to a tie rod that is displaced in the left-right direction by the servo. It was very difficult to adjust the angle of the left and right to the same angle.
[0020]
Therefore, in the embodiment of the present invention, a plurality of tie rods 6a having different lengths are prepared, and a support member that can be easily attached to and detached from the servo box 1b so that the tie rod 6a can be easily attached to the servo. 6b makes it possible to easily replace tie rods 6a having different lengths, and thus toe-out and toe-in can be easily set.
[0021]
Next, the operation of the suspension device 8 for the front wheel 9 will be described. When a push-up force from the road surface acts on the front wheel 9, the steering member 8b rises along the pin 8a against the spring force of the spring 8e. When the push-up force is lost, the steering member 8b is lowered by the spring 8e. It is known that the stronger spring force of the spring 8e is easier to turn than the weaker spring force when cornering. Yes.
[0022]
By the way, in the past, in order to improve cornering, the spring 8e was replaced with one having a strong spring force, but in this case, a plurality of different spring forces must be prepared. There was a drawback of putting a burden on.
[0023]
In recent years, the same chassis is used, and a body not shown is exchanged with another product (a product imitating a real car) to enjoy a game. Since the size of the house is different, the front wheel 9 may come into contact with the arcuate portion of the tire house when turning.
[0024]
From the above, in the embodiment of the present invention, the thickness of the spring compression ring 8d fitted into the spring support member 8c shown in FIG. 6A is shown in FIG. 6B. By changing to such a thick one, the spring force of the spring 8e can be increased, and therefore cornering can be performed well. That is, it is sufficient to prepare a spring compression ring 8d having a lower thickness than that of the spring, so that no burden is placed on the player.
[0025]
Further, by using a long cylindrical portion of the spring support member 8c as shown in FIG. 6B, the upper end of the spring support member 8c is connected to the upper support member 1d when the steering member 8b is raised. By abutting early, the steering member 8b stops at a lower position than in the case of FIG. Accordingly, the front wheel 9 attached to the steering member 8b does not come into contact with the tire house on the body side. That is, by using the spring support member 8c having a different length of the cylindrical portion, a body having any size tire house can be attached to the chassis.
[0026]
6 (a) and 6 (b), the spring support member 8c and the spring compression ring 8d are separate, but as shown in FIG. 6 (c), the spring support member 8c and An integrated spring compression ring 8d, that is, the cylindrical portion of the spring support member 8c and the spring compression ring 8d are integrated, and the length of the cylindrical portion and the thickness of the base portion corresponding to the spring compression ring 8d are different. You may change to various things.
[0027]
Next, the configuration of the battery box 1c will be described in detail.
In the embodiment of the present invention, the battery box 1c is capable accommodating a battery 2 laterally from the left and right receiver box 1a in a horizontal direction, and the battery compartment 1c ₁ whose upper surface is opened is integrally Is formed. Further, the terminal 1c ₂ is attached to the longitudinal direction of the battery compartment 1c _1.
[0028]
Although the illustrated have shown that the size of the battery compartment 1c ₁ of two left and right battery 2 is housed, uses many cell width of the chassis is a toy vehicle big large In this case, the center of gravity may be lowered by storing the batteries in a horizontal state without stacking the batteries.
[0029]
10 in the lid member for covering the open top portion of the battery housing portion 1c _1, a hole 10a which engages with the two engaging claws 1c ₃ formed in an upper portion of the battery compartment 1c _1, the battery housing portion 1c one engaging claw 1c ₄ engaging holes 10b formed in the lower portion of the ₁ is formed. In addition, as the shape of the lid member 10, a projecting contact portion 10 c is formed so as to wrap around the outer periphery of the battery 2 located outside the battery housing portion 1 c ₁ , and the battery housing portion is formed on the back side. abutting pressing projection 10d on the outer periphery of the cell 2 located inside housed in 1c ₁ is formed.
[0030]
In the thus constituted battery box 1c, after storing in parallel battery 2 in the horizontal direction in the battery accommodating portion 1c _1, a hole 10a of the lid member 10 of the battery housing portion 1c ₁ engaging claw 1c ₃ , and then the hole 10 b of the lid member 10 is engaged with the engagement claw 1 c ₄ of the battery housing portion 1 c ₁ , so that the battery 2 positioned outside is wrapped by the contact portion 10 c of the lid member 10. On the other hand, the battery 2 positioned inside is pressed and fixed by a pressing protrusion 10d formed on the back surface side of the lid member 10.
[0031]
As a result, all the batteries 2 in the battery housing portion 1c are securely fixed without rattling, so that the battery 2 does not move and lose balance during traveling, and the battery 2 is connected to the main chassis. Since it is located below 1, it has a low center of gravity and travel is stable.
[0032]
【The invention's effect】
In the present invention, as described above, the suspension includes a spring, a spring support member that regulates the amount of movement of the steering member in the vertical direction, and a spring compression ring for adjusting the spring pressure of the spring, and By changing the length of the cylindrical portion of the spring support member, the amount of movement in the vertical direction can be changed, and the spring pressure of the spring can be changed by changing the thickness of the spring compression ring. Even if the body is replaced with a different one, the replacement of the spring support member with a different length of the cylinder portion prevents the front wheel from coming into contact with the tire house and allows smooth turning.
[0033]
Further, the spring support member and the spring compression ring are integrally formed, and the length of the cylindrical portion and the thickness of the base portion serving as the spring compression ring are made different, so that the cost is low. By selecting one from a plurality of members, it is possible to adjust the vertical movement amount of the front wheel and the spring pressure of the spring.
[Brief description of the drawings]
FIG. 1 is a perspective view of an entire automobile toy incorporating a steering apparatus for an automobile toy according to the present invention.
FIG. 2 is a front view as seen from the left side of the above.
FIG. 3 is a partially exploded perspective view in which a portion of a tie rod is separated.
FIG. 4 is a partially exploded perspective view in which a suspension portion on the front wheel side is separated.
FIG. 5 is an exploded perspective view of only the suspension part.
FIG. 6 is a front view showing the assembled state of the above, and (a) to (c) show embodiments in which parts used are different.
FIG. 7 is a perspective view of the battery box with a lid member separated.
FIG. 8 is a cross-sectional view in the assembled state of the above.
[Explanation of symbols]
1 Chassis 8b Steering member 8c Spring support member 8d Spring compression ring 8e Spring 9 Front wheel

Claims (2)

A suspension in which a steering member on which a front wheel is rotatably supported is pivotally supported by a pin together with a spring on a chassis-side shaft supporting member,
Wherein between the steering member and the spring, the spring compression ring that is inserted into the spring support member and the tubular portion comprising a said spring is formed in a cylindrical portion and the cylindrical portion and one body to be inserted pedestal portion mounting, can be used to adjust the amount of movement in the vertical direction of the steering member by a length of the cylindrical portion is changed to a different spring supporting member, also the spring pressure of the spring by changing to a different spring compression ring thick toy vehicle suspension device being characterized in that to allow variable. The suspension device for an automobile toy according to claim 1, wherein the spring support member and the spring compression ring are integrated .

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