JPH0746946Y2 - Electric teaching materials - Google Patents

Description

[Detailed Description of the Invention] [Field of Use and Outline of the Invention] The present invention relates to teaching materials for elementary school children to learn about uses of electric motors, etc. One teaching material set can be used to understand various uses of electric motors. It enables you to do it.

[Prior Art and Problems Thereof] Elementary school children learn about the functions of electricity and light, and among them, especially when the electric motor is used as a power source, the weight of learning is large.

Therefore, it has been proposed to assemble an automobile model using a dry battery and an electric motor, and to use the main part for this model to perform an experiment of flying a disk, but these have been proposed. It was troublesome to assemble and replace the electric motor when conducting an experiment using the parts.

The present invention has been made in view of the above point, and various experiments are performed by making the main part of the teaching material a car body part of the automobile model and easily changing the small electric motor for the model to various modes. The task is to be able to do it.

[Regarding the Invention of Claim 1] [Technical Means] The technical means of the present invention taken to solve the above-mentioned problem is to provide a dry battery accommodating portion (11) in a vehicle body portion (1) for an automobile model. The wheels (12) (12) are detachably provided, and a plurality of mounting portions for the small motor (M) are provided at the rear portion of the vehicle body portion (1), and each mounting portion is a pair of key-like pieces facing each other at regular intervals. (20) (20) and each of the hook-shaped pieces (20) includes a raised piece (21) standing upright from the mounting plane of the small motor (M) and a tongue piece (22) parallel to the mounting plane. However, it is provided with an inverted U-shaped fitting (3) which is constructed separately from the vehicle body (1) and surrounds the body of the small motor (M), and is engaged from both ends of this fitting (3). Tongue (31) (3
1) is projected in the back direction so that the engaging tongue piece (31) can be press-fitted between the hook-shaped piece (20) and the mounting plane of the small motor (M). When the small motor (M) is mounted by the mounting tool (3), the output shaft (J) of the small motor (M) is arranged such that the hook-shaped pieces (20) (20) of the two mounting portions (2c) are arranged. Is set to a position and posture such that it can be transmitted to the axle (14) of the wheel (12) attached to the vehicle body (1), and the arrangement of the key-like pieces (20) (20) of the other attachments is When the small motor (M) is mounted by the mounting tool (3), the output shaft (J) of the small motor (M) is set to a position and a posture protruding to a position independent of the wheels (12). " is there.

[Operation] The technical means of the present invention operates as follows.

When carrying out an experiment on a small motor (M) using the teaching material having the above-mentioned configuration, a dry battery is provided in the dry battery accommodating part (11) in the vehicle body part (1) and switches are attached, depending on the type of the experiment. Mount a small motor (M). At this time, the hook-shaped piece (20) (2) of the attachment part (2c) or other attachment part
The fitting (3) mounted so that the small motor (M) is made to correspond to 0) and the body of the small motor (M) is surrounded.
When the engaging tongues (31) (31) of (1) are press-fitted between the tongues (22) of the hook-shaped pieces (20) (20) and the motor mounting plane, the body of the small motor (M) is attached to each mounting plane. It is held and fixed in contact with.

Then, when the small motor (M) is attached to the attachment portion (2c) using the attachment (3), the output shaft (J) and the axle (14) of the rear wheel (12) can be transmitted. Therefore, when the transmission component is attached with the transmission component interposed therebetween, the model becomes an electric vehicle model. The model travels by being directly transmitted from the small motor (M) to the wheels (12).

In order to replace the small motor (M) with another mounting part, from the mounting state, the engaging tongues (31) (31) are attached to the tongues (22) of the hook-shaped pieces (20) (20) and the motor. The fixture (3) and the small motor (M) are removed by pulling them out from between the flat surfaces, and thereafter, they are attached to another attachment portion in the same procedure as described above.

In this way, other experiments, such as disk-skipping and propeller cars, can be performed.

[Effects] The present invention having the above-described configuration has the following unique effects.

The electric motor vehicle model using the small motor (M) can be made, and the mounting position and the mounting posture of the small motor (M) can be changed into a plurality of modes, and a separate experiment can be performed in each mode. Further, since the mounting position and the posture of the small motor (M) can be easily changed for elementary school children and the like, the experiment contents can be easily changed during the lesson, and the educational experiment effect is improved.

[Invention of Claim 2] This invention makes it possible to make an electric vehicle model by limiting the installation location of the mounting portion, and also makes it extremely easy to carry out experiments as a disk drive or a propeller vehicle. The technical means limited for this purpose is to provide "a pedestal (13) protruding from the upper surface of the vehicle body section (1) at the rear of the vehicle body section (1), and the upper surface and the rear surface of the pedestal are made smaller respectively. Motor (M) mounting part (2a) (2b)
In addition, the mounting portion (2c) of the small motor (M) is provided in the vicinity of the front of the pedestal (13), and the arrangement mode of the key-like pieces (20) (20) of the mounting portion (2a) is as described above. When the small motor (M) is mounted by the mounting tool (3), the output shaft (J) of the small motor (M) is set to a position and posture so as to project from the rear end of the pedestal (13), and the mounting portion (2b) ), The arrangement of the key-like pieces (20) (20) is the same as the fitting (3).
Set the output shaft (J) of the small motor (M) so that it protrudes from the upper surface of the pedestal (13) when the small motor (M) is attached, and further, the mounting portion (2c) has a key shape. When the small motor (M) is mounted by the mounting tool (3) in the arrangement mode of the pieces (20) (20), the output shaft (J) of the small motor (M) is mounted on the vehicle body part (1). The position and orientation are such that they can be transmitted to the axle (14) of the wheel (12) ”.

With this means, when the mounting position of the small motor (M) is the mounting portion (2b), the output shaft (J) projects from the upper surface of the pedestal (13), and the output is output in this state. When a disk flying component is attached to the shaft (J) and the disk is removably attached to this component and the small motor (M) is energized, this disk is swung by the small motor (M) and the disk jumps up. .

Next, the wheels (12) and (12) are attached to the vehicle body part (1), and the small motor (M) is attached to the attachment part (2a), and the output shaft (J) protruding from the rear end of the pedestal (13) is attached. When the disk used for flying the disk is mounted in a predetermined posture by using fixing parts, it becomes a model of a propeller vehicle. The body part (1) runs due to the reaction force of the propeller's wind power.

As described above, by changing the mounting position of the small motor (M) in each part used as the model of the electric vehicle, it is possible to extremely easily carry out the experiment of the disk drive and the propeller vehicle.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 10.

In this embodiment, a model of a disk blower, a propeller car, an electric car, and a solar car can be manufactured by one body part (1).

As shown in FIGS. 1 to 4, the vehicle body portion (1) for this purpose is provided with a recessed portion at the center of the upper surface, and this recessed portion serves as a dry battery accommodating portion (11), and a pedestal (13) is provided at the rear portion of the upper surface. ) Is formed, and axle holes (15) (16) for mounting the wheels (12) (12) are provided on the skirt portion formed on the periphery.

As shown in FIG. 2, the dry battery accommodating portion (11) includes a pair of battery boxes (B) and (B) for accommodating dry batteries (K).
The recessed portion serving as the dry battery storage portion (11) is a rectangular recessed portion having a size in which the pair of battery boxes (B) and (B) are arranged side by side. In addition, electrode fittings (E) and (E) are provided on both ends of the battery box (B).
This electrode fitting (E) can be attached
(E) Electrically connect with each other.

The mounting parts (2a) and (2b) are provided on the upper surface and the rear surface of the pedestal (13) formed on the upper surface of the vehicle body part (1) as described above. As shown in FIGS. 3 and 4, a circular recess (17) is formed in the center of the upper surface to be the mounting portion (2a). This recess (1
7) is the installation part of the solar cell mounting base in the case of a solar car. The mounting portion (2a) has a pair of hook-shaped pieces (20) (20) arranged parallel to the front-rear direction of the vehicle body portion (1).
Are arranged at regular intervals so as to face each other,
A stopper (S) for positioning the small motor (M) when the small motor (M) is mounted is upright at the front end of the mounting portion (2a). Also, the key-like piece (20)
A positioning piece (23) for restricting an insertion position of a fixture (3) described later is integrally formed with a raised piece (21) and a tongue piece (22) forming a hook-shaped piece (20) at a front end of the Has been done.

The mounting portion (2b) is also configured in the same manner as the mounting portion (2a), but in this embodiment, the small motor (M) is mounted in such a manner that it is slightly sunk in front of the rear surface of the pedestal (13). Therefore, a notch recess (1) that opens upward and backward over a certain range from the upper end of the pedestal (13) is provided.
8) is formed, and the same hook-shaped piece (2) as in the case of the above-mentioned mounting portion (2a) is formed at a predetermined position on both sides of this notch recess (18).
Equipped with 0) (20). Then, the notch recess (1
The flat portion at the lower end of 8) functions similarly to the stopper (S) in the mounting portion (2a). The positioning piece (23) provided on the hook-shaped piece (20) is arranged at the lower end of the hook-shaped piece (20).

A mounting portion (2c) is formed near the front of the pedestal (13) and above the axle hole (15), and the output shaft (J) of the small motor (M) is located at the rear of this mounting portion (2c). The wheel (12) is mounted so as to face in the same direction as the axle (14). The configuration of the hook-shaped piece (20) and the stopper (S) provided on the mounting portion (2c) is the same as that of the mounting portion (2a).

To attach the small motor (M) to the above-mentioned mounting portions (2a) to (2c), the mounting tool (3) shown in FIG. 10 is adopted, but this mounting tool (3) is perpendicular to the top. The pair of extension pieces (30) (30) extended in the direction are formed with engaging tongue pieces (31) protruding outward, and the protruding length and thickness of the engaging tongue pieces (31) are formed. The engaging tongue piece (31) with the tongue piece (22) of the key-like piece (20) and the mounting plane fitted to each other and surrounding the body of the small motor (M) by the fitting tool (3). ) (31) is press-fitted into the hook-shaped pieces (20) (20) to be attached to each part in a predetermined posture.

Of the axle holes (15) (16) for attaching the wheels (12), the axle holes (16) are three attachment holes (16a) (16b).
(16c), the front wheel can be set to a total of five postures by selecting this mounting hole. When the axle (14) is made to penetrate through the opposite mounting holes, the wheels attached to the axle (14) are the wheels (12).
The posture of (12) is parallel to the center line of the vehicle body (1). When one is the mounting hole (16a) and the other is the mounting hole (16b), the front wheels are mounted in a slightly inclined posture. When one of the mounting holes is the mounting hole (16a) and the other is the mounting hole (16c), the front wheel is mounted in the maximum inclined posture. Further, this inclination direction can be set to two types, right and left, and the turning radius can be selected depending on the turning direction when the vehicle is running.

Further, a switch device (4) can be attached to the center of one side of the upper surface of the vehicle body part (1) having the above-mentioned configuration, and the shaft part (41) which stands upright at the center of the step part (40). An operation lever (42) is fitted in the. A pair of tongue pieces (43) are provided near both sides of the side wall surface (44) facing the shaft portion (41).
(43) is upright, and this tongue (43) and side wall (44)
The electrodes for the switch are press-fitted separately between and. The tip ends of the switch electrodes (45) (45) face each other at a constant interval in the swinging range of the tongue piece at the tip of the operation lever (42), and one of the switch electrodes (45) is Side wall surface (4
4), and the other switch electrode (45) is positioned with a certain distance from it. This latter switch electrode (4
The tip of 5) is swingable in the horizontal plane, and the shaft (41)
The operation lever (42) attached to the upper end contacts the tongue piece.

Therefore, the switch electrodes (45) and (45) for keeping the operation lever (42) upright with respect to the side wall surface (44) are conductive, and in the state shown by the solid line in FIG. Become. Thus, the switch device (4) can be turned on and off by operating the operation lever (42). Incidentally, in order to connect the switch electrodes (45) (45) to other electrodes and the like, a cord attachment piece (46) is formed upwardly on each switch electrode (45).

Dry cells (K) (K) are provided in the body part (1) having the above-mentioned structure.
Further, the following various experiments can be carried out by mounting the switch device (4) and mounting the small motor (M) in a predetermined posture using the mounting tool (3) shown in FIG.

* In the case of a disc drive In this case, the vehicle body (1) is used without the wheels (12) (12). Then, the small motor (M) is attached to the mounting portion (2b). At this time, a small motor (M)
Enclose the body of the vehicle with the fixture (3), and output shaft (J)
Inside the tongue piece (22) of the hook-like piece (20) (20), in which the engaging tongue pieces (31) (31) at both ends of the attachment tool (3) are provided in the attachment part (2b) in a posture in which the When press-fitted into, the engaging tongue (31) contacts the positioning piece (23) and the small motor (M)
The small motor (M) was installed in a predetermined position when the lower end of the body part of the body contacted the bottom wall of the cutout recess (18), and the output shaft (J) protruded from the upper surface of the pedestal (13). To do.

In this case, a plurality of blades (52) are attached to the tip of the output shaft (J).
A disc (P) having radially arranged (52) is mounted. A disc portion (51) is provided at the center of the disc (P), and a pair of engaging holes are formed in the disc portion (51). And
A pair of engaging projections (61) (61) at the tip of the locking tool (6) attached to the tip of the output shaft (J) are fitted and engaged. The locking tool (6) has the engaging projection (61) on the upper surface of the disc (62).
(61) is upright at a predetermined interval, and a pinion (63) for an electric vehicle model, which will be described later, is formed integrally with the disc (62).

As described above, the small motor (M) provided with the locking tool (6) is attached, and the small motor (M) constitutes the predetermined circuit with the dry battery (K) and the switch electrodes (45) (45). When the operating lever (42) of the switch device (4) is operated by connecting the disk (P) to the locking tool (6) as described above, the small motor (M) is brought into conduction and the rotational driving force is increased. Granted. The disc (P) and the locking tool (6) engage with the engaging projections (61) (6
Since 1) is only fitted in the engaging hole of the disc portion (51), when the rotation speed of the small motor (M) reaches a predetermined rotation speed, the disk (P) jumps up. At this time, needless to say, the orientation of the blades (52) (52) is set to a predetermined posture so that buoyancy acts on the disk (P) by rotation. In other words, the direction of rotation of the small motor (M) is set according to the direction of the blades (52) (52). This rotation direction is set by the direction of electrical connection between the dry batteries (K) (K) and the small motor.

* When using a propeller car model In this case, mount the small motor (M) on the mounting part (2a) so that its output shaft (J) projects rearward. At this time, if the front end of the small motor (M) is in contact with the stopper (S) and the engaging tongue (31) is in contact with the positioning piece (23), it is attached at a predetermined position. The output shaft (J) projects rearward from the upper surface of the pedestal (13). Locking tool (6) provided on the output shaft (J) in this state
The disk (P) is attached to the disk (P), and the fixing members (64) are fitted to the tips of the engaging protrusions (61) (61) protruding from the engaging holes of the disk (51), and the blades (52) of the disk (P) are attached. ) Set (52) to the specified posture so that backward wind is generated.

The vehicle body (1) has wheels (12) at both ends of the axle (14).
Wear front and rear wheels equipped with (12). When the operating lever (42) of the switch device (4) is operated in this state, when the rotation speed of the small motor (M) reaches a predetermined value,
The propeller car model advances due to the wind force generated by the disk (P). At this time, if the mounting posture of the front wheel axle (14) is adjusted in the manner described above, the vehicle can be moved straight or turned. It is also possible to change the turning direction and the turning radius.

* In the case of an electric vehicle model In this case, attach the small motor (M) to the attachment part (2c). In this mounting posture, the output shaft (J) is located above the rear wheel. A large gear (G) for transmission is attached to the axle (14) of the rear wheel, and the large gear (G) and the small gear (63) of the locking device (6) are engaged with each other. . In this state, if the predetermined wiring is performed and the operation lever (42) of the switch device (4) is operated to bring the small motor (M) into conduction, the vehicle travels in a straight traveling state or a turning state depending on the mounting posture of the front wheels. .

* In the case of a solar car model In this case, use a separately prepared solar cell (7). When using this solar cell (7), the dry cell (K) (K) is unnecessary. Then, the both electrodes of the solar cell (7), the cord attachment pieces (46) of the switch electrodes (45) and (45), and the small motor (M) are connected in series.

In order to mount the solar cell (7), in this embodiment,
A support plate (71) attached to the back surface of the solar cell (7) by a double-sided adhesive material, and a head portion (73) spherically paired with the tubular portion (72) provided on the back surface of the support plate (71). The supported support shaft (74) is used. The support shaft (74) is used by being press-fitted into the recess (17) provided in the mounting portion (2a).

Attach the support shaft (74) to the recess (17) as described above. When the head portion (73) is fitted into the cylindrical portion (72) of the support plate (71) provided on the back surface of the solar cell (7), the attitude of the light receiving surface of the solar cell (7) can be arbitrarily adjusted. .

In this embodiment, when the above wiring is performed, the both electrodes (70) (70) of the solar cell (7) are electrically connected by the holding tool (75) provided at the tip of the wiring cord (enamel wire). Has become.

Therefore, the wiring is performed using this, and the solar cell (7)
If the switch device (4) is turned on by adjusting the light receiving surface of the solar cell in a predetermined posture, the solar car model will run.

As described above, in this embodiment, the mounting portion (2a)
~ Select the mounting position of the small motor (M) in any of the mounting portions (2c), change the usage mode of the driving force of this small motor (M) (presence or absence of the disk (P), etc.), and By changing the type of battery, four experiments and learning are possible.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention, which is an explanatory view in the case of making a model for flying a disk, FIG. 2 is its plan view, and FIG. 3 is a sectional view of a pedestal (13) and its vicinity, Figure 4 shows the pedestal (1
3) Perspective view of the main part, Fig. 5 is a side view of a propeller car model, Figs. 6 and 7 are explanatory views of an electric vehicle model, and Figs. 8 and 9 are description of a solar car model. Figure, No. 10
The figure is a perspective view of the fixture (3). In the figure, (1) …… Body part (11) …… Battery compartment (12) …… Wheels (13) …… Pedestal (M) …… Small motor (2a) (2b) (2c) …… Mounting part (20) …… Key-shaped piece (21) …… Raised piece (22) …… Tongue (3) …… Mounting tool (31) …… Engaging tongue One side (J) …… Output shaft (14) …… Axle

Claims (3)

[Scope of utility model registration request] 1. A vehicle body (1) for an automobile model is provided with a dry battery accommodating portion (11) and wheels (12) (12) are detachably provided, and a small motor (at a rear portion of the vehicle body (1) ( M) is provided with a plurality of mounting portions, and each mounting portion is composed of a pair of hook-shaped pieces (20) (20) facing each other at regular intervals, and each of the hook-shaped pieces (20) is a small motor (M). An inverted U-shaped fixture (3) that surrounds the body of the small motor (M) and comprises a raised piece (21) standing upright from the attachment plane and a tongue piece (22) parallel to the attachment plane is provided separately. The engaging tongues (31) (31) are projected from both ends of the fitting (3) in the back direction, and the engaging tongues (31) are provided with the key-like pieces (20).
Between the mounting surface of the small motor (M) and the mounting plane of the small motor (M), and the arrangement of the hook-shaped pieces (20) (20) of one mounting portion (2c) among the mounting portions is the mounting tool ( Position and posture such that when the small motor (M) is attached by 3), the output shaft (J) of the small motor (M) can be transmitted to the axle (14) of the wheel (12) attached to the vehicle body (1). And the arrangement of the hook-shaped pieces (20) (20) of the other mounting portion is set to the output shaft of the small motor (M) when the small motor (M) is mounted by the mounting tool (3). An electric teaching material in which J) is set to a position and posture in which it projects to a position unrelated to the wheels (12b). 2. A pedestal (13) protruding from the upper surface of the vehicle body portion (1) is provided at the rear of the vehicle body portion (1), and the upper surface of the pedestal is used as a mounting portion (2a) for a small motor (M). When the small motor (M) is mounted by the mounting tool (3) in the arrangement mode of the key-like pieces (20) (20) of (1), the output shaft (J) of the small motor (M) is pedestal (13). The electric teaching material according to claim 1, wherein the teaching material is set to a position and a posture protruding from the rear end, and a mounting portion (2c) is arranged in front of the pedestal (13). 3. A pedestal (13) projecting from the upper surface of the vehicle body portion (1) at the rear portion of the vehicle body portion (1) is provided with a mounting portion (2b) for a small motor (M) on the rear surface, and the mounting portion (2b). The arrangement mode of the hook-shaped pieces (20) (20) of
3. The electric teaching material according to claim 2, wherein the output shaft (J) of the small motor (M) is set to a position and posture that protrude from the upper surface of the pedestal (13) when the small motor (M) is attached.