EP0151664B1 - Toy car - Google Patents
Toy car Download PDFInfo
- Publication number
- EP0151664B1 EP0151664B1 EP84101549A EP84101549A EP0151664B1 EP 0151664 B1 EP0151664 B1 EP 0151664B1 EP 84101549 A EP84101549 A EP 84101549A EP 84101549 A EP84101549 A EP 84101549A EP 0151664 B1 EP0151664 B1 EP 0151664B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheels
- toy car
- main wheel
- pair
- car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000007306 turnover Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/26—Details; Accessories
- A63H17/262—Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis
Definitions
- This invention relates to a toy car according to the opening part of claim 1.
- toy cars such as a spring-drive type, a battery-drive type, a wireless-control type and others, for winning popularity with younger children.
- majority of such conventional toy cars may slip transversely upon sudden change of a running direction, and in a worse case may lose its weight balance to turn over.
- an independent- suspension system has been utilized for maintaining the weight balance, which system results in a complicated structure and a high cost.
- an improved design of the toy car comprising a pair of front wheels and a plurality of rear wheels mounted to a car body, in which said plurality of rear wheels comprise a main wheel arranged substantially at the centre of a car width and a pair of non-driven follower wheels arranged on either side of the main wheel, said pair of non-driven follower wheels each being rotatably mounted to one end of a supporting arm while the other end of the supporting arm being pivoted to an eccentric position in relation to an axle of the main wheel, may run on three wheels, namely the front wheels, the rear main wheel and either one of the follower wheels upon the sudden change of the running direction.
- an object of the invention is to provide a toy car which is simple in construction and may readily change its running direction.
- the object may be achieved, in accordance with the invention by designing the toy car comprising a pair of front wheels and a plurality of rear wheels mounted to a car body, in which said plurality of rear wheels comprise a main wheel arranged substantially at the center of a car width and a pair of follower wheels arranged on either sides of the main wheel, said pair of follower wheels each being pivoted to one end of a supporting arm while the other end of the supporting arm being pivoted to an eccentric position in relation to an axle of the main wheel.
- a running balance may be further improved by putting a heavier fixed loading on the rear wheel side than on the front wheel side of the car body.
- Figure 1 is a plan view of one embodiment of the toy car according to the invention. -
- the toy car comprises a car body 10 formed of, for example, a plastic material as well as a pair of front wheels 12, 12 and a plurality of rear wheels consisted of a main wheel 14 arranged substantially at the center of a car width and a pair of follower wheels 16, 16 arranged on either side of the main wheel 14.
- the car body 10 at its front part contains a direction-change means 18 which may be operated by an output signal from a wireless-controller (not shown) provided separately from the car body.
- the direction-change means 18 may be connected through an optional power-transmission mechanism (not shown) to the front wheels 12, 12.
- the car body 10 at its rear part, namely at a carrier 20 is provided with a driving motor 22 which is operated by another output signal from the wireless-controller.
- a driving shaft of the motor 22 is connected through another power-transmission mechanism (not shown) to an axle 24 of the main wheel 14 for serving the main wheel 14 as a driving wheel.
- the carrier 20 is provided, in addition to the driving motor 22, with a power battery (not shown) in order to put a heavier fixed loading on the rear wheel side than on the front wheel side.
- Each of the pair of rear wheels 16, 16 is rotatably mounted to one end of a supporting arm 28, while the other end of the arm 28 is pivoted through a shaft 30 to an eccentric position in relation to an axle 24 of the main wheel 14.
- a reference 32 represents a stopper for defining the upper limit when the supporting arm 28 rotates on the shaft 30.
- the car body 10 In operation of the toy car, the car body 10 is placed on the floor or the ground and the wireless-controller is operated to start rotation of the driving motor 22. Thus, a rotational force of the motor 22 is transmitted through the power-transmission mechanism to the main wheel 14 thereby to drive the toy car straight at given speed.
- both the follower wheels 16, 16 are contacted with the ground due to its own weight applied on the shaft 30 of the supporting arms 28, 28 and may rotate freely ( Figure 4).
- the toy car may change the running direction for the front wheels 12, 12 through selective operation of the direction-change means 18 by use of the wireless-controller while straight running.
- a sudden change of the running direction allows the car body 10 to incline due to a centrifugal force, as shown in Figure 5.
- one of the follower wheels 16b may rotates upwardly on the shaft 30 of the supporting arm 30 to oppose the centrifugal force in cooperation with the main wheel 14 and the front wheels 12, 12 and thus to prevent loss of the weight balance and transverse slippage or turnover of the car body.
- the other follower wheel 16a may be contacted with the ground, as in the straight running, due to its own weight applied on the shaft 30 of the supporting arm 28 and may rotate freely (Figure 5).
- one of the front wheels 12, and one of the follower wheels 16b may be lifted off from the ground.
- the remaining front wheel 12, the main wheel 14 and the follower wheel 16a may keep running on the three wheels and prevent the transverse slippage or turnover here again ( Figure 6).
- the toy car according to the invention is simple in construction and may achieve not only the prevention of transverse slippage and turnover of the car body upon the sudden change of its running direction but also the turning on a small radius. Further, a spin operation upon running is possible, thereby to provide a very amusing toy car.
Landscapes
- Toys (AREA)
- Handcart (AREA)
Abstract
Description
- This invention relates to a toy car according to the opening part of claim 1.
- There have previously been proposed various types of toy cars, such as a spring-drive type, a battery-drive type, a wireless-control type and others, for winning popularity with younger children. However, majority of such conventional toy cars may slip transversely upon sudden change of a running direction, and in a worse case may lose its weight balance to turn over. In order to eliminate such disadvantages, an independent- suspension system has been utilized for maintaining the weight balance, which system results in a complicated structure and a high cost.
- As a result of diligent works for designing a toy car which is simple in construction and may prevent transverse slippage upon sudden change of the running direction, it has now been found out that an improved design of the toy car comprising a pair of front wheels and a plurality of rear wheels mounted to a car body, in which said plurality of rear wheels comprise a main wheel arranged substantially at the centre of a car width and a pair of non-driven follower wheels arranged on either side of the main wheel, said pair of non-driven follower wheels each being rotatably mounted to one end of a supporting arm while the other end of the supporting arm being pivoted to an eccentric position in relation to an axle of the main wheel, may run on three wheels, namely the front wheels, the rear main wheel and either one of the follower wheels upon the sudden change of the running direction.
- Thus, an object of the invention is to provide a toy car which is simple in construction and may readily change its running direction.
- The object may be achieved, in accordance with the invention by designing the toy car comprising a pair of front wheels and a plurality of rear wheels mounted to a car body, in which said plurality of rear wheels comprise a main wheel arranged substantially at the center of a car width and a pair of follower wheels arranged on either sides of the main wheel, said pair of follower wheels each being pivoted to one end of a supporting arm while the other end of the supporting arm being pivoted to an eccentric position in relation to an axle of the main wheel.
- In the toy car of the invention, a running balance may be further improved by putting a heavier fixed loading on the rear wheel side than on the front wheel side of the car body.
- The invention will be described in more detail hereinbelow for the preferred embodiment of a wireless-control toy car with reference to the accompanying drawings.
- Figure 1 is a plan view of one embodiment of the toy car according to the invention; -
- Figure 2 is a side view of the toy car as shown in Figure 1;
- Figure 3 is a bottom view of the toy car as shown in Figure 1;
- Figure 4 is a schematic view illustrating the relation between the main and follower wheels and the contacted ground upon straight running of the toy car;
- Figure 5 is a schematic view illustrating the relation between the main and follower wheels and the contacted ground upon changing the running direction; and
- Figure 6 is a schematic view illustrating a position in which one wheel is lifted off from the ground upon the direction change, as shown in Figure 5.
- In the drawings, the toy car according to the invention comprises a
car body 10 formed of, for example, a plastic material as well as a pair offront wheels main wheel 14 arranged substantially at the center of a car width and a pair offollower wheels main wheel 14. Thecar body 10 at its front part contains a direction-change means 18 which may be operated by an output signal from a wireless-controller (not shown) provided separately from the car body. The direction-change means 18 may be connected through an optional power-transmission mechanism (not shown) to thefront wheels car body 10 at its rear part, namely at acarrier 20 is provided with a drivingmotor 22 which is operated by another output signal from the wireless-controller. A driving shaft of themotor 22 is connected through another power-transmission mechanism (not shown) to anaxle 24 of themain wheel 14 for serving themain wheel 14 as a driving wheel. In this case, thecarrier 20 is provided, in addition to thedriving motor 22, with a power battery (not shown) in order to put a heavier fixed loading on the rear wheel side than on the front wheel side. - Each of the pair of
rear wheels arm 28, while the other end of thearm 28 is pivoted through ashaft 30 to an eccentric position in relation to anaxle 24 of themain wheel 14. In Figure 2, areference 32 represents a stopper for defining the upper limit when the supportingarm 28 rotates on theshaft 30. - The toy car according to the invention will be described hereinbelow for its operation and effect.
- In operation of the toy car, the
car body 10 is placed on the floor or the ground and the wireless-controller is operated to start rotation of the drivingmotor 22. Thus, a rotational force of themotor 22 is transmitted through the power-transmission mechanism to themain wheel 14 thereby to drive the toy car straight at given speed. In this case, both thefollower wheels shaft 30 of the supportingarms - The toy car may change the running direction for the
front wheels car body 10 to incline due to a centrifugal force, as shown in Figure 5. In accordance with the invention, one of thefollower wheels 16b may rotates upwardly on theshaft 30 of the supportingarm 30 to oppose the centrifugal force in cooperation with themain wheel 14 and thefront wheels other follower wheel 16a may be contacted with the ground, as in the straight running, due to its own weight applied on theshaft 30 of the supportingarm 28 and may rotate freely (Figure 5). In case of more abrupt change the running direction in relation to the straight running speed, one of thefront wheels 12, and one of thefollower wheels 16b may be lifted off from the ground. However, the remainingfront wheel 12, themain wheel 14 and thefollower wheel 16a may keep running on the three wheels and prevent the transverse slippage or turnover here again (Figure 6). - As described hereinabove, the toy car according to the invention is simple in construction and may achieve not only the prevention of transverse slippage and turnover of the car body upon the sudden change of its running direction but also the turning on a small radius. Further, a spin operation upon running is possible, thereby to provide a very amusing toy car.
- It will be appreciated that the invention is not limited to the embodiment as described hereinabove and that a front wheel drive system may be employed or a supporting rod for the follower wheels may be resiliently supported through a spring.
- Although the invention has been described for its preferred embodiment hereinabove, it will be appreciated that many variations and modifications may be made without departing from the scope of the invention, as set forth in the appended claims.
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP84101549A EP0151664B1 (en) | 1984-02-15 | 1984-02-15 | Toy car |
DE8484101549T DE3474414D1 (en) | 1984-02-15 | 1984-02-15 | Toy car |
AT84101549T ATE37665T1 (en) | 1984-02-15 | 1984-02-15 | TOY CAR. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP84101549A EP0151664B1 (en) | 1984-02-15 | 1984-02-15 | Toy car |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0151664A1 EP0151664A1 (en) | 1985-08-21 |
EP0151664B1 true EP0151664B1 (en) | 1988-10-05 |
Family
ID=8191773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84101549A Expired EP0151664B1 (en) | 1984-02-15 | 1984-02-15 | Toy car |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0151664B1 (en) |
AT (1) | ATE37665T1 (en) |
DE (1) | DE3474414D1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR530433A (en) * | 1920-02-02 | 1921-12-22 | Car cart | |
FR68491E (en) * | 1954-11-06 | 1958-04-30 | Improvements to agricultural tractors | |
FR1256008A (en) * | 1960-02-01 | 1961-03-17 | Meccano France Ltd | Miniature car with change of direction |
GB1390068A (en) * | 1972-10-31 | 1975-04-09 | Lesney Products Co Ltd | Strut moundings for toy or model vehicles |
-
1984
- 1984-02-15 DE DE8484101549T patent/DE3474414D1/en not_active Expired
- 1984-02-15 EP EP84101549A patent/EP0151664B1/en not_active Expired
- 1984-02-15 AT AT84101549T patent/ATE37665T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3474414D1 (en) | 1988-11-10 |
EP0151664A1 (en) | 1985-08-21 |
ATE37665T1 (en) | 1988-10-15 |
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