JPS5926318B2 - Multi-stage energy storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-stage energy storage device, and in particular, the present invention relates to a multi-stage energy storage device, and in particular, the energy storage unit has a multi-stage configuration, and for example, the energy stored in the first stage energy storage unit is used to store energy in the next stage energy storage unit. The present invention relates to a multi-stage energy storage device for a toy, in which a large number of energy storage units are put together in a relatively compact manner, and a large amount of energy is stored as a whole.

In the multi-stage energy storage device as described above, it is desired that the energy storage units in each stage store energy approximately evenly.

However, as mentioned above, for example, energy is stored in the first-stage energy storage unit, and energy is then stored in the next-stage energy storage unit via the first-stage energy storage unit in which the energy is stored. At this time, there is generally energy loss due to friction or the like in the energy transmission mechanism interposed between the first stage energy storage unit and the second stage energy storage unit.

For this reason, when the above-mentioned energy transmission mechanism transmits energy by meshing two gears, for example, if the number of meshes of both gears is the same, energy can be sufficiently transmitted from the first stage side to the second stage side. It happens that something is not done.

That is, more energy is stored on the first stage side, and only a small amount of energy is stored on the second stage side.

The present invention aims to solve the above-mentioned problems, and aims to provide a multi-stage energy storage device in which the energy stored in each stage is approximately equalized.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings, with reference to the case in which the present invention is applied to, for example, an elastic drive toy that stores rubber power.

FIG. 1 shows a miniature force-1 incorporating a multi-stage energy storage device according to the present invention, and FIG.
3 and 4 are drawings with the body 2 of the miniature car removed in order to clearly explain the multi-stage energy storage device of the present invention incorporated in the miniature car-1.

A multi-stage energy storage device according to one embodiment of the present invention is incorporated into the base frame 4 that constitutes the base body portion 3 in the miniature force-1.

Partition plates 7 and 7' are fixed to the base frame 4, and the partition plates 7 and 7' are fixed to the base frame 4.
, 7' have a plurality of (three in the illustrated example) hooks 8, 9.
10 is rotatably supported.

A thrust metal support 11 is fixed to the hook 8, and gears 12 and 13 are fixed to the hooks 9 and 10.

These thrust metal supports 11 and gears 12, 13
A thrust metal 14 is attached to the partition plate 7, and cooperates with a thrust metal 14' provided on the partition plate 7 side to form a bearing portion with low friction.

A crown gear 15 is fixed to the rear end of the hook 8 and engages with a pinion gear 16.

The pinion gear 16 is fixed to the connecting shaft 6 of the rear wheels 5, 5'.

Front wheels 5, 5 are separately attached to the base frame 4, and rear wheels 5
', 5' constitute a miniature force-1 wheel.

A movable plate 17 is further slidably attached to the base frame 4.

A frame portion 18 is fixed to the movable plate 17, and hooks 19, 20, and 21 are supported on the frame portion 18.

Of these, hooks 19 and 20 are rotatably supported, and hook 21 is fixedly attached.

Gears 22, 23 are fixed to the hooks 19, 20, and thrust metals 14, 14' are provided on the gears 22, 23 and on the frame 18 to reduce friction.

A pair of protrusions 24 , 24 are formed on the movable plate 17 , and a clip 25 fixed to the protrusions 24 , 24 and the base frame 4
For example, a rubber ring 26, which acts as a tensioner, is locked between the two.

A rubber ring 27y 27Z 27'' is engaged between the hooks 8, 9, 10 and the hooks 19, 20, 21.

A stopper 28 is pivotally supported on the base frame 4, and the stopper 28 locks the rotation of the pinion gear 16 and locks the rotation of the pinion gear 16.
．． It acts to prevent the energy stored in 27' and 27'' from being released arbitrarily.

Now, the case where energy is stored in the rubber i27, 27', 27'' will be explained.

First, as shown in FIG. 3, after rotating the stopper 28 to release the locked state between it and the pinion gear 16, the wheels 5', 5' are rotated, for example, by hand.

The rotation of the wheels 5', 5' causes the shaft 6 to rotate, and the pinion gear 16 fixed thereto also begins to rotate.

The rotation of the pinion gear 16 also rotates the crown gear 15, rotates the hook 8, and twists the rubber ring 27 engaged with the hook 8.

This twisting of the rubber ring 27 causes the hook 19 to rotate, and the adjacent hook 20 to rotate via the gears 22, 23, thereby twisting the second stage rubber ring 27'.

The twisting force of the rubber ring 27' rotates the hook 9, and is transmitted to the third stage rubber ring 21'' via the gears 12 and 13, and the rubber ring 27'' is also subjected to the twisting action.

Thus, the wheel 5' by hand or other rotating means.

If 5' is rotated continuously, rubber i27, 27'.

27" will be gradually twisted and energy will be stored in them.

In the initial state, where no energy is stored in the rubber rings 27, 27', 27'', the movable plate 17 is loosely tensioned by the rubber ring 26, which acts as a tensioner.

However, as shown in FIG. 4, the rubber rings 27, 27' and 2
As energy gradually accumulates in 7", each rubber ring 2
7, 27', 27'' are twisted gradually, becoming thick and short in a state similar to a knot, and the hooks 8° 9.10 and 19, 20, 21 are engaged at both ends. It works to pull strongly.

However, since the rubber ring 26 acting as a tensioner continues to pull the movable plate 11 against this, each rubber ring 27, 27' and 27'' is always wound in a tensioned state with no slack, and any slack rubber ring This prevents the uneven formation of bumps that tend to occur when winding, and the accumulated distribution of winding energy becomes uniform.

Of course, the tensile force of the rubber ring 26 is effective not only when storing energy, but also when releasing the stored energy uniformly.

Gear ratios of gears 12 and 13 and 22 and 23 are 1:1
Instead, use a gear with a slightly thicker rear gear.

In other words, since a small amount of frictional force acts on each hook and gear, each gear ratio must be increased to compensate for the loss caused by that friction in order to increase the twisting torque of the rubber ring in the subsequent stage. Rubber ring 27.27', 27
The rubber ring is not wound evenly, so the energy storage is uneven and insufficient, and as a result of this uneven storage, a problem arises in that only certain rubber rings tend to break quickly.

This gear ratio will of course depend on the state of friction loss.

However, when driving a miniature force using gears that are normally used for toys and thrust metal that is also commonly used, the gear ratio is 1.4.
Up to the third rank is appropriate, and in particular, in the range of 1.06 to 1.20, the rubber rings in each stage were wound with approximately the same number of turns.

Each rubber 'J27.27' and 27'' are sufficiently wound,
When sufficient energy has been stored in the rubber rings 27, 27', 27'', the rotation of the wheels 5, 5' is stopped and the release of this stored energy is prevented, for example by holding the wheels 5, 5' with your fingers. Meanwhile, place this miniature car 1 on the floor,
When the fingers are released from the wheels 5, 5', the miniature car 1 starts running due to the energy stored in each rubber '7327.27' and '27''.

Now, I was able to drive a miniature car about 7 meters long by using commercially available rubber bands with a length of about 5.5 crn in three stages, one at a time, as the rubber ring.

Of course, the stored energy can be increased by further increasing the number of stages or by using two or more rubber rings attached to each hook.

Of course, the rubber ring is not limited to commercially available rubber bands, and string-like ones may also be used.

Further, the means for transmitting the rotational force of the wheels 5, 5' is not limited to pinion gears and crown gears, for example, bevel gears may be used, and the gears 12, 13 and 22,
23 may be a friction wheel, for example.

As means for slidably mounting the movable plate 17 on the base frame 4, in the illustrated example, the base frame 4 is provided with an edge 29, on which the movable plate 17 is positioned. Other means, for example, a structure in which the base frame is provided with a groove that engages with a part of the movable plate, may be adopted.

Although the explanation has been given using an example of using a rubber ring 26 such as a commercially available rubber band as a tensioner, it is also possible to use an appropriate means such as using a spiral spring to fix one end to the base frame and the other end to a movable plate. Can be done.

It is also possible to create a multi-stage structure by fixing the crown gear to an inner hook and arranging other gears on both sides of the gear fixed to this hook.

In addition, experimental data when a commercially available rubber band is used as the rubber ring and a four-stage configuration is used will be explained with reference to FIG.

In this figure, four coordinate axes represent the number of turns of each rubber band in the first stage, second stage, third stage, and fourth stage, respectively.

Fig. 5 shows the gear ratio of gears 12 and 13 and gears 22 and 23 from 1:1.0 to 1:1.43 when the rubber bands in each stage are wound approximately 200 times. This shows how energy is stored in each stage when the windings are changed.

Note that the coordinates represent 10 turns per 1 cfrL.

Since the total number of turns is 200, ideally each stage should be wound equally, that is, 50 times in each stage, but if gear ratios are exactly the same, the first stage would have 67 turns. The culms were wound 53 times in the second row, 45 times in the third row, and 35 times in the fourth row, indicating that young culms are easier to sow.

This indicates that, as mentioned above, it is difficult to transmit energy to the subsequent stage due to friction loss.

However, when the gear ratio is changed to 1:1.06, the first stage is wound 58 times, the second stage is wound 51 times, the third stage is wound 47 times, and the fourth stage is wound 44 times. It can be seen that the winding condition is equalized and improved.

In this experiment, a gear ratio of 1:1.13 was close to ideal.

On the other hand, if the gear ratio is increased further, the energy transmission torque will increase and the rubber band at the rear stage will be wound more.

This is just an example of an experiment, and it only shows one trend. It is assumed that the distribution of the number of turns varies depending on the characteristics of the rubber used, the friction distribution of the device, etc., and the optimal The gear ratios are considered to be different for each.

As explained above, in the present invention, the gear for transmitting stored energy is made smaller than the gear for receiving energy through which energy is transmitted, thereby increasing the energy transmission torque.
Even in the presence of friction loss, energy can be stored evenly in the energy storage section in multiple stages.

As a result, energy can be stored in each stage under balanced load conditions.

Therefore, with a very simple configuration, it is possible to provide a multi-stage energy storage device for toys that can store energy even in a narrow space and has a high degree of energy storage.

Moreover, in the past, in a short space, for example, only a short piece of rubber could be used, and it was not possible to provide a driving force source with sufficient energy. can be easily increased in the lateral direction, so a driving force source with a large amount of energy storage can be easily provided.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a miniature car on which a multi-stage energy storage device according to an embodiment of the present invention is mounted, and FIGS.
The figures show a multi-stage energy storage device of the present invention, of which Figure 3 shows a state in which no energy is stored, Figure 4 shows a state in which energy is stored, and Figure 5 shows a state in which energy is stored.
When four stages of energy storage units using rubber bands are used as energy storage sources and gears are used as energy transmission mechanisms, a diagram showing the gear ratio and the relationship in which energy is stored in each stage is shown. In the figure, 4 is the base frame, 6 is the rear wheel connection shaft, 7°7' is the partition plate, 8, 9, 10, 19, 20, 21 are the hooks, 2
7, 27' and 27'' are rubber rings, 12° 13 and 22,
23 is a gear, 15 is a crown gear, 16 is a pinion gear, 17 is a movable plate, and 18 is a frame portion.

Claims (1)

[Claims] 1. Energy is transmitted via a first string-like rubber body energy accumulation portion having a string-like rubber body that stores at least energy transmitted from the outside and the energy accumulated in the first string-like rubber body energy storage portion. a second string-like rubber body energy storage section having a string-like rubber body, and the multi-stage energy storage device is arranged such that the string-like rubber bodies are arranged in parallel with each other; A first gear for transmitting stored energy is provided in the rubber-like energy storage section, a second gear for receiving energy is provided in the second string-like rubber energy storage section, and the first gear and the second gear are meshed with each other. A multi-stage energy storage device for a toy, characterized in that the first gear is smaller than the second gear.