JPS62231691A - Running toy - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field to which the Invention Pertains] The present invention relates to a traveling toy that uses an internal combustion engine as a power unit that uses pressurized gas supplied from a small disposable gas cylinder as fuel.

[Prior Art and Its Disadvantages] Conventional running toys using an internal combustion engine as a power section use liquid fuel such as diesel oil or kerosene, so a vaporizer is required, and the liquid fuel has a low ignition temperature. Due to its high price, it requires an ignition mechanism such as a spark plug to cause combustion and explosion within the cylinder, which requires a large number of additional devices, resulting in a complex, large, and expensive structure.

[Object of the present invention] In view of the above points, the present invention provides a traveling toy having an internal combustion engine as a power section, in which fuel exists as a gas at room temperature,
Another object of the present invention is to provide a traveling toy that is simple in structure and easy to operate, eliminating the need for additional devices such as a vaporizer and ignition mechanism by using pressurized gas with a low ignition temperature.

[Means for Achieving the Objective] In order to achieve the above objective, the present invention has a basic configuration including a gas fuel supply unit that spouts fuel gas from a small gas cylinder storing liquefied gas fuel by operating a lever, and a gas fuel supply unit that supplies fuel gas from the gas fuel supply unit. It consists of a power section that combusts and explodes the incoming gas in the cylinder and rotates the output shaft via a piston and a crank, and a power transmission section that transmits the rotational force of the output shaft to the axle.

[Example of this invention] Next, one embodiment of the present invention will be described based on the drawings.

G is a traveling toy according to the present invention, which has a gas fuel supply section A, a power section B, and a power transmission section C inside a chassis 8.

As shown in FIG. 2, the gas fuel supply section A includes a small cylinder 1 storing liquefied gas fuel, a nozzle 2 at the top, a valve, a nozzle return means, a pressure reducing filter, etc. (not shown) at the bottom. a gas ejection mechanism 4 having a decompression chamber 3, a lever 6 rotatably attached to a shaft 5 and locking the neck 2a of the nozzle 2 on the minus side, and a lever operating means 7 for pushing the lever in one direction. It has become.

The small cylinder 1 is a disposable cylinder similar to that used for supplying liquefied gas to lighters, and is detachably attached to the cylinder, and the tip of the needle is inserted into the decompression chamber 3 of the gas ejection mechanism 4, Pressurized gas is supplied from Alternatively, from the fuel tank similar to a disposable lighter, there is a vacuum chamber 3 and a nozzle 2.
A cylinder having up to 1 unit may also be used.

The lever operating means 7 comprises an L-shaped lever 8 partially protruding from the chassis 8, a cam 9 provided at one end of the lever, and a stopper 10 for preventing infinite rotation of the lever 8.

The cam 9 is positioned and provided so as to press one end of the lever 6 (one end on the side where the nozzle 2 is not locked) when the lever 8 is rotated in one direction, for example, rightward in FIG. ing.

Therefore, by rotating the lever 8 in one direction, the cam 9 presses one end of the lever 6, so the nozzle 2 is pulled out from the gas ejection mechanism 4 by the lever principle, and the nozzle 2 is inserted into the inner end of the nozzle 2. Since a certain valve listens to the gas flow path in the gas jetting mechanism 4, the pressurized gas in the cylinder 1 is depressurized to some extent through the gas jetting mechanism 4, and then passes through the jetting port of the nozzle 2.

2b into the conduit 11 and the gas is
The air moves within the conduit 11, is mixed with the air sent from the air pump 12 through the conduit 13 in the conduit 14, and is supplied from the end opening 14a of the conduit 14 to the crank chamber 17 of the power section B, which will be described later. (See Figure 3).

When the force is removed from the lever 6, the nozzle 2 returns to its original position by a spring connected to it, or by a return spring wound around the nozzle in the gas ejection mechanism when a cylinder with a nozzle is used. Ru. The lever 8 is provided with means for stopping it in either the normal position (nozzle opening 1) or the return position (between the nozzles).

In addition, Sl can be excited by remote control, which will be described later.
This is a solenoid that returns the lever 8 to its normal position, and is used to stop the fuel supply from a remote location in the event of an accident such as falling while driving. 15 is a lever for changing the gas jetting m.

As shown in FIG. 4, the power section B includes a cylinder 16, a crank chamber 17, a piston 18, a connecting rod 19, and a crank 2.
It is an internal combustion engine consisting of 0. The cylinder 16 has two holes provided opposite to each other in the upper part, that is, a scavenging port 21 and an exhaust port 22. A line connecting the scavenging port 21 and the exhaust port 22 and the axis of the crankshaft 20a are approximately 90 degrees apart. in the twist position. The crank 20 has a support shaft 23 at both ends that communicates with the outside of the crank chamber. It has an output shaft 24.

As shown in FIG. 3, the support @ 23 is hollow with one end closed and the inside of the crank chamber opened, and is rotatably inserted through the sealing sleeve 25 provided outside the crank chamber so as not to leave a gap. The cavity 23a is opened in the right angle direction by a hole 23b outside the crank chamber, and when the hole 23b comes to a certain position due to the rotation of the support shaft 23, it matches the hole 25a of the sleeve 25. The conduit 14 is in the hole 25a.
The end openings 14a of the two are connected to each other. In the embodiment, the holes 23b and 25a match when the piston 18 in the cylinder 16 reaches approximately the highest point.

Therefore, when the piston 18 reaches almost the highest point in the compression stroke stage, the conduit 14 and the support shaft 2
3 is electrically conductive, so the mixture of gas and air is connected to the support shaft 23.
flows into the crankshaft 17 through the cavity 23a (
(See Figure 5 (a)). When the piston 18 moves toward the lowest point due to the explosion of the air-fuel mixture in the cylinder, the crankshaft 17 is compressed by the back side of the piston, so that the dehumidified mixture in the crank chamber flows from the hole 26 into the conduit 27. (See figure (b)). Furthermore, piston 18
When the cylinder moves to open the scavenging port 21, the dehumidified gas in the conduit 27 is sent into the cylinder 16. At this time, since the scavenging port 21 and the exhaust port 22 are electrically connected, the incoming moisture-insulating air-fuel mixture is transferred from the exhaust gas 022 into the conduit 29 by the action of the deflecting projection 28 provided at the top of the piston. (Refer to the same figure (c)). Then piston 18
moves in the direction of compressing the inside of the cylinder 16 again due to the rotational inertia of the crank 20, the scavenging port 21 and the exhaust port 22 are blocked by the side wall 18a of the piston (see figure (d)), and the piston 18 reaches its highest point. (At this time, the new air-fuel mixture is flowing into the crank chamber again.) The air-fuel mixture in the cylinder 16 is compressed by the inner wall of the cylinder and the top surface of the piston, and the heat generated during compression and the heat generated from the previous explosion are Burns and explodes due to residual heat. piston 18
The explosive force moves the inside of the cylinder in the direction of expansion, and the above process is repeated again.

In this way, the support shaft 23 and the output @24 rotate.

The lever 30 at the upper end of the cylinder is for changing the compression ratio inside the cylinder.The lever side has a male thread and the cylinder side has a female thread. It is designed to be inserted inside. This lever is used when starting or stopping the traveling toy G, as will be described later.

That is, since the inside of the cylinder 16 is at room temperature when the traveling toy G is started, the only way to burn and explode the air-fuel mixture is to rely on the heat generated by the compression of the piston 18 inside the cylinder. Therefore, the compression ratio variable lever 30 is used to increase the compression ratio in the cylinder to facilitate the explosion of the air-fuel mixture. Once an explosion occurs, the residual heat generated by the explosion causes the mixture to explode at the normal compression ratio without increasing the compression ratio.

The power transmission section C may have any configuration that transmits the rotational force of the output shaft 24 to the axle 31, but in order to rotate the wheels T only when the toy is traveling, it is preferable to use a clutch.

Various known clutches can be used. In the example of FIG. 7, Il! is fixed to the output shaft 24! Rubber disc 3
1, an axle 32, a clutch 33 provided on the axle,
and a link 34 that brings the clutch into contact with or away from the disc 30.

The clutch 33 includes a clutch plate 35 rotatably attached to the axle 32, a disk 36 fixed to the axle, and a compression spring 37 that biases the clutch plate 35 and the disk 36 in a direction to separate them from each other. have The clutch plate 35 is made of rubber, has a taper 35a on the surface facing the disk 31, and is normally in contact with the disk 31 by a compression spring 37.

The link 34 is formed in a substantially Z-shape and rotates about an axis 38. When the link rotates in one direction, one end of the link presses a substantially central portion of the clutch plate 35 and moves toward the disc 36 against the bias of the spring 37 to break contact with the disc 31. The other end has a U-shaped recess 39 into which the variable compression ratio lever 30 is engaged.

Therefore, as the compression ratio variable lever 30 rotates, the clutch plate 35 moves left and right in the axle direction. In this embodiment, when the variable compression ratio lever °-30 is turned in the direction of increasing the compression ratio, the clutch plate 35 is separated from the disk 31, and when it is turned in the direction of decreasing the compression ratio, the clutch plate 35 is moved away from the disk 31. It is meant to be in contact. S2 is a solenoid which, when energized by a remote control described later, pulls the link 34 and rotates the variable compression ratio lever 30 to the "low" side.

Note that the protrusion 40 provided on the axle 32 is for preventing the axle 32 from being biased in one direction due to the bias of the spring 37. Although it comes into contact with the inner wall of the chassis 8, it has almost no effect on the rotation of the axle.

D is a drive unit used when starting the traveling toy, and forcibly slides the piston 18 to cause the air-fuel mixture in the cylinder to burn and explode. Although various configurations can be considered, FIG. 1 shows one example, in which a small circular plate 42 is fixed to the tip of the output shaft 24 and has a belt fitting groove 41 on the circumferential surface, and a shaft 43 is fixed to the tip of the output shaft 24. , a large circular plate 45 having a belt fitting groove 44 on its curved surface, and a belt fitting groove 41
．． 44 and a belt 46 which is placed around the belt 44. In addition to the belt fitting groove 44, the large inner plate 45 is provided with a string fitting groove 47. Therefore, when winding the string, wrap the string 48 around the fitting groove 47 and pull it vigorously.
The inner plate 45 rotates due to the frictional force, and the rotational force is applied to the belt 4.
6. The force is transmitted to the output shaft 24 via the small disk 42, and the piston 18 in the power section B slides within the cylinder. Further, the shaft 43 is interlocked with the air pump 12 within the shaft 1/sea, and by rotating the shaft 43, the air pump 12 sends air into the conduit 13.

Next, the operation of the traveling toy G according to the present invention will be explained.

Before starting the power section B, as a preparatory step, the conduit 14 is
The end opening 14a of the clutch plate 35 is made not to match the hole 23b of the support @23, and the variable compression ratio lever 30 is set to the "high" side to separate the clutch plate 35 from the disc 31. After that, the lever 8 of the gas fuel supply section A is set to "open", and the string 48 is wrapped around the large disk 45 and pulled vigorously. The rotation of the large disk 45 causes the shaft 43 and the output shaft 24 to rotate, the rotation of the shaft 43 causes the air pump 12 to send air into the conduit 13, and the rotation of the output shaft 24 causes the end opening 14 of the conduit 14 to be rotated.
a matches the hole 231) of the support shaft 23, and the air-fuel mixture flows into the crankshaft 17. Then, the air-fuel mixture is roughly fed into the cylinder 16 by the sliding movement of the piston 18, and a scavenging/compression stroke and an explosion/exhaust stroke are performed within the cylinder. Thereafter, the compression ratio variable lever 30 is slowly rotated to the "low" side, and the clutch plate 35 is brought into contact with the disc 31 via the Z-shaped sink 34. The rotational force of the disc 31 is applied to the clutch plate 35
Since the wheels T are rotated via the axle 32, the traveling toy G travels.

Next, when stopping this traveling toy, first use a radio control or the like to energize the solenoid s1 provided on one side of the lever 8 and close the lever 8 to cut off the gas fuel supply. , the solenoid S2 provided on one side of the variable compression ratio lever 30 is energized, the variable compression ratio lever 30 is rotated to the "high" side, and the clutch plate 35 is disengaged. Then, the running toy G may be forcibly stopped while it is inertially traveling with a hand or a cushion, or a brake may be provided separately and the brake may be operated to stop the running toy G.

8 and 9 show a second embodiment of the drive section, in which the power section can be started by rotating the axle 32. FIG.

That is, a rubber disk 51 is fixed to the output @24, and the disk 51 and the disk 36 are interlocked by a disk 52 newly provided in this embodiment. The disk 52 is rotatably attached to a shaft 53. Further, the shaft 53 has an arm 56 on one side that is locked with a locking piece 55 protruding from one end of an elastic piece 54 fixed to the chassis 8, and on the other side an arm 56 with one end fixed to the chassis 8. It has a spring 57. The arm 56 also has a lever 58 extending upward.

Therefore, when the locking piece 55 and the arm 56 are released from each other, the tension spring 57 causes the disk 52 to move between the disk 36 and the disk 52.
1 (in this case, the disk 36 is preferably made of rubber). Therefore, by rotating the axle 32, the disk 36 rotates, and the rotation is transmitted to the disk 51 via the disk 52, and the rotational force causes the piston 18 to slide. If it is desired to separate the disk 52 from the disk 36.degree. 51, the arm 56 can be locked with the locking piece 35 by pulling the lever 58 in the direction of the locking piece 35.

Next, a method for starting the traveling toy according to the second embodiment will be explained.

First, the preparation stage for starting is the same as that in the first embodiment, so a description thereof will be omitted. After the preparation stage, the solenoid S3 is energized to release the lock between the locking piece 55 and the arm 56, and the disc 5 is released.
2 is brought into contact with the disk 36 and the disk 51, and then the running toy G is held in the hand and moved back. By backing up, the axle 32 is rotated, and the rotational force is applied to the disc 36°52.5.
1 to the output shaft 24 and causes the piston 18 to slide. When the air-fuel mixture starts to explode in the cylinder, pull the lever 58 toward the locking piece 55 to break contact with the disc 52, and then rotate the variable compression ratio lever 30 to the "low" side to release the clutch plate. 35 is brought into contact with the disk 31, the constant running toy runs forward.

In this way, according to the second embodiment, the small disk 42 used in the first embodiment. The large disk 45, belt 46, etc. are not required, and the appearance becomes simple.

The air pump 12 may be driven by using the rotational force of the output shaft 24 or the axle 320 using known means such as gears.

The power unit B of the above embodiment supplies the air-fuel mixture sent from the hollow support shaft 23 connected to the crank 18 via the conduit 14 into the crank chamber 17, and sends the air-fuel mixture to the back side of the piston 18. Compress it with hole 26. Although the air-fuel mixture is fed into the cylinder 16 through the conduit 27, the method of feeding the air-fuel mixture into the cylinder is not limited to this. For example, as shown by the chain line in FIG. Any known means can be used, such as supplying the air-fuel mixture from this intake port 60. In addition, the scavenging method also includes a scavenging hole 21. Exhaust port 2
Depending on the cross scavenging method described in 2, other loop ■ air,
Uniflow scavenging is optional. Furthermore, although the above embodiment was based on a two-stroke engine, the intake engine was used.

A 4-cycle Bl leap using an exhaust valve may be used.

[Effects of the Invention] As described above, the traveling toy according to the invention includes a gas fuel supply section that supplies pressurized gas from a detachable gas cylinder;
It consists of a power section that burns and explodes gas sent from the gas fuel supply section in a cylinder to rotate the output shaft via a piston and crank, and a power transmission section that transmits the rotational force of the output shaft to the axle. , because we used a gas that exists as a gas at room temperature and has a low ignition temperature as a fuel, it is possible to use a traveling toy with an internal combustion engine as its power source, unlike conventional ones.
Additional equipment such as a carburetor and ignition mechanism is not required. Therefore, the structure is simple and the traveling toy described above can be made smaller.

[Brief explanation of drawings]

The drawings show an embodiment of the invention, and FIG. 1 is a partially omitted perspective view showing the inside of the traveling toy according to the invention;
Fig. 2 is an explanatory diagram showing the configuration of the gas fuel supply section, Fig. 3 is a partially omitted sectional view showing one means for feeding the air-fuel mixture into the crank chamber, Fig. 4 is a sectional view of the power section, and Fig. 5 is a sectional view of the power section. The figure is an explanatory diagram showing the operation of the power unit, Figure 6 is a partially omitted sectional view of the running toy in Figure 1 seen from the rear, Figure 7 is an explanatory diagram showing the configuration of the power transmission unit, and Figure 8 is an explanatory diagram showing the configuration of the power transmission unit. A side view showing another example of the drive unit,
FIG. 9 is a plan view thereof. G...Running toy, S...Chassis-1 ■...Wheels,
Δ...Gas fuel supply unit, 1...Small cylinder, 2...
- Nozzle, 3... Decompression chamber, 4... Gas ejection mechanism, 6... Lever, 7... Lever operating means, 12.
13.14... Conduit, B... Power part, 16... Cylinder, 17... Crank chamber, 18... Piston, 19... Connecting rod, 20
... Crank, 21 ... Scavenging port, 22 ... Exhaust port, 23 ... Support shaft, 23a ... Cavity, 23b ... Hole 24 ... Output shaft, 25 ... Sleeve, 25a...
Hole 26...hole, 27...conduit, 29...conduit・3
0... Compression ratio variable lever, C... Power transmission section, 31... S friction disk, 32...
Axle, 33...Clutch, 34...Link, 35.
...Clutch plate, 36... Disk, 37... Compression spring, D... Drive section, 42... Small disk, 45... Large disk, 46... Belt, 48...・・String, 51.52...
Disc, 53... Shaft, 54... Elastic piece, 55... Locking piece, 56... Arm, 57... Tension spring, 58
...Lever, 51~s3...Solenoid. Patent applicant Ta Co., Ltd.
Figure 6 Figure 7

Claims (1)

[Scope of Claims] (a) A gas fuel supply unit that spouts liquefied gas by operating a lever from a disposable gas cylinder that is detachably attached to a traveling toy; A running toy comprising: a power unit that causes combustion and explosion within the engine to rotate an output shaft via a piston and a crank; and (c) a power transmission unit that transmits rotation of the output shaft to an axle.