JPH0331074B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a traveling toy equipped with a driving battery and a motor.

[Prior art]

Conventionally, when housing a battery or motor in a car body, the parts were fixed by gluing or screwing one member of the car body, or by sandwiching them between two parts and gluing or screwing the two parts together. It was done.

[Problems to be solved by the present invention]

Therefore, all of them have problems such as being complicated and time-consuming to accommodate and assemble, making it difficult to manufacture efficiently, increasing weight, and lacking stability in running balance.

[Means for solving problems]

The present invention provides a self-propelled toy in which an axle with wheels is driven by a motor driven by a battery via a transmission member, and in which a space is provided between the front and rear sides of both side plates of a chassis 1 of a box-shaped case in which an engaging portion 3 is provided. The axle 8 with the slip gear 10 is inserted into the axle insertion grooves 2, 2 provided at different angles, and the battery 22 is placed in the upper part.
, a motor 23 having a worm gear 25 meshing with the slip gear 10 at its lower part, and a battery box 12 provided with an engaging part 15 that engages with the engaging part 3 is substantially inscribed within the chassis 1. The engaging portion 15 is engaged with the engaging portion 3 on the chassis 1 side, and the axles 8, 8 are supported by the battery box 12, and the worm gear 25 is engaged with the slip gear 10 on the axle 8. This running toy is characterized in that it is provided with engaging parts 6 and 7 that can connect and hold the chassis 1 and engage and disengage the body 31.

〔Example〕

Embodiments of the present invention will be described using the drawings.

The chassis 1 is a box-shaped case with a bottom and no lid, and is formed by injection molding of plastic.

On both side plates of the chassis 1, two cut grooves 2, 2 for inserting two axles 8, 8 (described later) are provided with openings at the upper edge of the chassis, and a battery which serves as a drive unit mount assembly (described later) is provided. The engagement portion 3 of the box 12 is formed, and the chassis 1
The bottom plate has a gear 10 installed in the center of the axle, which will be described later.
and concave portions 4, 4 through which the collars 11, 11 escape, and a window hole 5 for protruding the operating portion 28 of the switch 24, which will be described later.
is drilled.

The front plate of the chassis 1 has an engaging part 6 and a front bumper 36 on the outside that hold down the lower part of the grill at the front of the body 31, and the rear plate has an engaging part 7 with the body 31, a rear bumper 37, and a wheelie shoe that also serves as a hook. (A member that comes into contact with the running surface together with the rear wheels during wheelie running in which the vehicle runs with the front wheels raised above the running surface) is provided on the outer surface. The widths of both bumpers 36 and 37 are set to a width that allows a tire/axle unit, which will be described later, to be inserted into the chassis 1 from above.

The axles 8, 8 each have a wheel press-fitted into each end, and tires 9, 9 are fitted onto the wheels, forming a tire-axle unit. A slip gear 10 is press-fitted into the center of each axle so that it slips and rotates with respect to the axle 8 when a torque exceeding a predetermined magnitude is received. Collars 11, 11 for preventing sliding are fitted and arranged with a degree of press-fit greater than the degree of press-fit of the gear 10.

The battery box 12 is a mount assembly for the drive unit, and has a shape that is fitted almost inscribed in the chassis 1. A partition plate 14 divides the space formed into an upper space where the battery 22 is accommodated and a lower space where the motor 23 and the switch 24 are accommodated.

Engagement portions 15 for engaging the engagement portion 3 of the chassis 1 are provided on the outer surfaces of the side plates 13, 13 to protrude from each other.

The partition plate 14 faces each of the side plates 13 and has grooves 16,
16, but one cut groove 16 is provided with a partition plate 14.
The other kerf 16 has an opening at the front edge of the partition plate 1.
4 has an opening at the rear end edge. Furthermore, ribs 19 protruding from the lower surface of the partition plate 14 are protruding from the clamping walls 17, 17 of the motor 23, the clamping walls 18, 18 of the switch 24, and the worm gear 25 fitted into the shaft of the motor 23. The ribs 19 are used to prevent a worm gear 25 from coming off, which will be described later, and to hold the switch 24 between the battery box 12 and the rear end wall of the chassis when the battery box 12 is inserted into the chassis 1.

The terminal plates 27 of the battery 22 are provided with the clamping portions 20 of the terminal plates 27 of the battery 22 at the portions of the side plates 13 facing the kerfs 16.
20 are provided. The holding portion 20 is formed by a groove shaped like the side plate 13, a groove formed by a stepped portion and a contact plate, and a notch 21 provided at the lower end edge of the side plate 13. This battery box 12 is equipped with a battery 22, a motor 23, and a switch 24 as driving parts.

The battery 22 is a dry battery of a size that fits the upper space of the battery box 12, and is held between terminal plates 27 and 27 under pressure.

The shaft of the motor 23 has both ends protruding from the motor frame, and the gears 10 and 1 are attached to both ends, respectively.
Worm gears 25, 25 which mesh with each other are press-fitted as transmission members. This worm gear 2
5 and 25 are of course in the same direction and at the same pitch.

The motor 23 has a rectangular frame and is held on the battery box 12 by the clamping walls 17, 17. When the battery box 12 is fitted to the chassis 1, the motor 23 14 and the bottom plate of the chassis 1, and the worm gears 25, 25 are provided so as to mesh with the gears 10, 10 of the axles 8, 8. Further, the tip of the worm gear 25 at the front of the vehicle body is provided so as to be close to the front end wall of the chassis 1 as a rib for preventing slippage when the battery box 12 and the chassis 1 are fitted together.

One of the brush terminals 26, 26 of the motor 23 is directly connected to the terminal plate 27 by a cord, and the other is connected to the terminal plate 27 with a switch 24 relayed between the cords.

The terminal plate 27 is a contact part 28 of the battery 22
It has a handle part 29 which is held between the holding parts 20 of the battery box 12, and a snap stopper 30 is formed with a notch at the end of the handle part 29 to fit into the notch 21 and ensure secure retention, Slightly bent. The contact portion 28 is a bent spring member extending from the handle portion 29. And Batsuteri 2
Each of the two poles does not have its own terminal plate 27, and the direction in which the battery 22 is inserted between the terminal plates 27, 27 is not limited to one direction.

In the figure, 32 is a recess for fitting the bearing metal part of the motor 23, 33 is a recess for fitting the brush terminal 26, and 34 and 35 are engaging parts on the body 31 side that engage with the engaging parts 6 and 7. .

In assembling the members constructed as described above, first, the tire/axle unit is fitted into the grooves 2, 2 of the chassis 1. After fitting the battery box 12 equipped with each part into the chassis 1, the body 31 is attached to make the running toy, but all this work can be done with one-touch fitting operation, and requires screwing, gluing, etc. It is extremely simple because it does not have any problems, and it is also easy to disassemble, making it convenient for battery replacement and repairs.

Furthermore, since the chassis 1 and the battery box 12 have a double structure, the strength can also be improved.

In particular, when equipping each component to the battery box 12, the motor 23, switch 24, and terminal plates 27, 27 are assembled into the battery box 12 without being disconnected, with the soldering completed in advance. , sandwiching wall 17,
17, 18, 18 and the holding parts 20, 20, it can be easily and securely held in the battery box 12 without adhesive or screwing, and the drive part can be constructed as a unit.

When using this traveling toy, please be sure to
It is possible to move forward and backward by converting the + and - poles of 2.

Furthermore, if the tire is forced to rotate as a pushing toy or if the tire stops due to hitting a wall or the like, the gear 10 will slip between itself and the axle 8 and will not rotate together with the axle, which may cause damage to the worm gear 25. No, worm gear 25 is gear 1
Even if the sleight is pushed from zero, the rib 19 and the front end wall of the chassis 1 prevent the worm gear 25 from coming off.

Furthermore, according to this embodiment, the center of gravity of the vehicle is slightly higher, so the wheelie described above can be performed by simply pushing the rear of the vehicle downward slightly, and unlike previous models, a weight member such as a coin can be placed at the rear of the vehicle. This allows you to play wheelie without having to do anything.

In this embodiment, the worm gears 25, 25 are provided to form both the front axle and the rear axle as drive shafts, but the worm gear 25 is provided only on one of the axles 8, 25.
Needless to say, the battery 22 can be engaged with only one side of the battery 22, and a rechargeable battery 22 can also be used.

〔Effect of the invention〕

The present invention has an axle 8 with a slip gear 10 fitted into axle insertion grooves 2, 2 provided at intervals in the front and back sides of both side plates of a chassis 1 of a box-shaped case with an engaging portion 3, and further A battery box 12 is installed inside the chassis 1, and includes a motor 23 having a battery 22 at the top, a worm gear 25 at the bottom that meshes with the slip gear 10, and an engagement portion 15 that engages the engagement portion 3. The engaging portion 15 is engaged with the engaging portion 3 on the chassis 1 side, and the axles 8, 8 are supported by the battery box 12, and the worm gear 25
By engaging and holding the slip gear 10 on the axle 8, each component mounted on the chassis can be assembled by sequentially fitting them into each other, and it can be assembled and connected without using screws or adhesives, and its manufacturing is extremely easy. By simply fitting the battery box into the chassis, the drive mechanism can be assembled accurately.In other words, the worm gear on the motor shaft is meshed with the gear on the axle, and the transmission connection state is maintained, and the drive mechanism including the battery can be easily assembled. The area around the part has a double wall structure, which makes it strong and strong, and also serves as a support for the axle, allowing stable high-speed running without rattling.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view of the tire/axle unit fitted into the chassis, FIG. 2 is a plan view of the battery box with various parts mounted, and FIG. Its bottom view (code omitted), Figure 4 is its right side view (code omitted), Figure 5 is its left side view (code omitted), Figure 6 is a perspective view explaining the relationship between the motor and axle, FIG. 7 is a separated perspective view of the chassis and battery box, FIG. 8 is a cut-away side view (not shown) in the separated state, and FIG. 9 is a perspective view in the assembled state. DESCRIPTION OF SYMBOLS 1... Chassis, 2... Cut groove, 3... Engagement part, 4... Recessed part, 5... Window hole, 6, 7... Engagement part, 8... Axle, 9...
Tire, 10... Gear, 11... Collar, 12... Battery box, 13... Side plate, 14... Partition plate, 15...
Engaging portion, 16... Cut groove, 17, 18... Holding wall, 19
... Rib, 20... Holding part, 21... Notch, 22... Battery, 23... Motor, 24... Switch, 25... Worm gear, 27... Terminal plate, 31... Body.

Claims (1)

[Claims] 1. In a self-propelled toy in which an axle 8 with wheels 9 is driven by a motor 23 driven by a battery 22 via a transmission member, a chassis 1 of a box-shaped case with an engaging part 3 is provided. An axle 8 with a slip gear 10 is fitted into axle insertion grooves 2, 2 provided at intervals in the front and rear positions of both side plates, and a worm gear having a battery 22 on the upper part and meshing with the slip gear 10 on the lower part. Equipped with a motor 23 having a number of 25,
A battery box 12 having an engaging part 15 that engages with the engaging part 3 is fitted into the chassis 1 so as to be substantially inscribed within the chassis 1, and the engaging part 15 is fitted into the chassis 1.
The worm gear 25 is engaged with the slip gear 10 on the axle 8, and the body 31 can be engaged with and disengaged from the chassis 1. A traveling toy characterized by having engaging parts 6 and 7. 2. The motor 23 is provided with two motor shafts, each of which is provided with a worm gear 25, and is connected to slip gears 10 provided on the axles 8 of the front and rear wheels, respectively. The running toy according to claim 1, which is an assembly including a battery terminal plate 27 via a battery terminal plate 24.