JPH0337677Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The disclosed technology belongs to the technical field of learning materials used as supplements to learning magazines.

This idea was developed by attaching a diaphragm to one end of the cylinder, and by attaching a diaphragm to the center of the diaphragm, in order to allow children in the lower grades of elementary school to learn the basic principles of sound transmission through experiential learning through play. This invention relates to a string telephone in which a plurality of cylindrical bodies are connected to each other via the threads by locking the ends of a thread serving as a vibration transmission medium, and in particular, the ends of a thread serving as a vibration transmission medium are connected to each other via the threads. This invention relates to a string telephone in which an earphone made of an elastic tube such as a vinyl hose is fitted and fixed, and each of the above-mentioned components including the earphone can be assembled and disassembled.

<Prior Art> As is well known, the recent development of advanced science is largely due to the expansion and promotion of education, and based on this fact, the importance of basic learning has become increasingly impossible to ignore. There is.

In addition, in order to enrich this basic learning, it is essential to learn basic scientific theories and experiential learning from childhood to adolescence. It is extremely effective for children in the lower grades of elementary school who begin to develop curiosity.

Therefore, the study of sound as a vibrational phenomenon has traditionally been included as a subject in elementary school science studies.
The idea was to have children learn the simple theory and at the same time conduct experiments with string telephones as experiential learning to encourage their understanding.

In general, in this type of telephone, paraffin paper as a vibrating body is stretched on one end of each of a pair of cylinders, and both ends of a thread as a vibration transmission medium are wrapped with cellophane tape or the like in the center of each paraffin paper. The cylinders are held in pairs by two children at a predetermined distance apart, and one of the children holds the cylinders at a predetermined distance while tensioning the string interposed between the cylinders. Place the other one on each ear.

At this time, if one child puts the tube to his or her mouth and makes a sound, the sound made by this child will be transmitted to the other child as a vibration of the wax paper, a vibration of the thread, and a vibration of the other wax paper. The sound is transmitted to the cylindrical body, allowing children to learn through play how sound is transmitted.

Additionally, such string telephones have often been used as supplements to study magazines and the like, and have been useful for promoting sound learning at home for children in the lower grades of elementary school.

<Problems to be solved by the invention> However, the above-mentioned conventional string telephone is a one-way communication type in which one person must hold the barrel to their ear while the other person is speaking, so the person speaking changes. The location to which the cylinder is applied must be changed frequently from the mouth to the ear and from the ear to the mouth.

In addition, in order for the sound to be transmitted well from one cylinder to the other, the loudness of the speaker's voice and the degree of closeness between the mouth and the cylinder have a large influence, but the speaker can It is difficult to know the vibration state, and it is often difficult to send and receive conversations using the above-mentioned conventional line telephone.

In recent years, toys for children to play with have been researched year after year, and many highly improved toys have been sold that are easy to handle and are designed to attract children's interest. The above-mentioned conventional string telephones, which do not have the above-mentioned features, cannot meet the tastes of children who have become more sophisticated, and as a result, they have the disadvantage that children use them less often and cannot fully fulfill their function as learning materials. Ta.

The purpose of this invention was to solve the problems of the above-mentioned conventional string telephones, and to improve children's understanding of the vibration transmission of sound by devising a means for children to directly touch each component with their own hands. In addition, it is easy for children to handle and attracts their interest, so that children have more opportunities to come into contact with learning materials, that is, opportunities for experiential learning, and this is an excellent method that will benefit the field of learning materials use in the education industry. The aim is to provide cordless telephones.

<Means/effects for solving the problem> In accordance with the above-mentioned purpose, the structure of this invention, which is based on the scope of the above-mentioned utility model registration claim, is that a diaphragm is attached to one end surface in order to solve the above-mentioned problem. An elastic tube is fitted to the side of a cylindrical body in which the end of the vibration transmission thread is locked to the diaphragm, and a plurality of the cylindrical bodies are connected by the vibration transmission thread, and when used, the vibration transmission Each child can send and receive calls at the same time by simply placing their mouths on the openings of each cylinder while keeping the string under tension, and placing their ears on the elastic tube connected to the side of the cylinders. In addition, technical measures have been taken in which the above-mentioned parts are formed independently so that they can be assembled and disassembled so that children can directly touch them with their hands and experience the mechanism by which sound is transmitted.

<Embodiment - Configuration> Next, one embodiment of this invention will be described below based on FIGS. 1 to 15.

1 is a string telephone of this invention, which is made into a set as an appendix to a study magazine, and each component is formed independently of each other so that it can be assembled and disassembled.

First, the structure of the assembled string telephone 1 will be explained. The string telephone 1 is composed of a pair of transmitting/receiving parts 2, 2' and a non-stretchable string 3 as a vibration transmission medium. The receiving section 2 has the same structure as the transmitting/receiving section 2', and consists of a cylindrical body 6 having a vinyl hose 4 as a speaking tube attached to the side and a diaphragm 5 attached to one end surface. Vibration plate 5
The end of the thread 3 is secured to.

Next, each component will be explained. The cylinder 6 is made of paper material, and an insertion hole 7 for the vinyl hose 4 is bored in its side. A plug 8 to be inserted into the ear during use is fitted to the distal end, and a locking tool 9 for the cylindrical body 6 is fitted to the proximal end.

Further, the plug 8 is formed in a hollow shape, and
The tip is tapered so that it can be smoothly inserted into a child's ear during use.

Furthermore, the locking tool 9 is formed in a hollow shape like the plug 8, and has a flange portion at its base to prevent the vinyl hose 4 from coming out of the insertion hole 7 of the cylinder body 6. 10 are formed.

Note that the tip of the locking tool 9 that is fitted into the vinyl hose 4 is formed to be relatively small with respect to the inner diameter of the vinyl hose 4; Hole 7 is the vinyl hose 4
Since the locking tool 9 is formed to have a smaller diameter than the outer diameter of the vinyl hose 4, when the locking tool 9 is actually inserted into the vinyl hose 4, the outer circumference of the vinyl hose 4 will fit into the insertion hole 7 of the cylinder body 6. As a result, the distal end of the locking tool 9 is securely pressed and fixed by the vinyl hose 4.

The diaphragm 5 is made of a resin thin film, and has a guide hole 11 in the center thereof into which the thread 3 is inserted. 12 is attached, and the end of the inserted thread 3 is locked, and at the same time the guide hole 11 is closed.

Furthermore, the cylindrical body 6 is attached to the outer edge of the diaphragm 5.
A guide cap 13 that can be freely fitted is mounted on the exterior of the guide cap 13. The guide cap 13 is formed of a resin material into a ring shape, and has a plurality of grooves 14 running in the width direction carved on its outer periphery. A locking portion 15 is formed on one end surface and extends in the inner diameter direction and supports the outer edge of the diaphragm 5.

Incidentally, the uneven groove 1 on the outer circumference of the guide cap 13
4... are shown only in FIG. 8 for convenience of illustration and omitted in other drawings.

<Embodiment - Effect> Next, the assembly process of each component in the above-described configuration will be explained.

First, when assembling the string telephone 1,
As shown in FIG. 10, a plug 8 is fitted to the tip of the vinyl hose 4, and at the same time the 11th,
As shown in FIG. 12, the base of the vinyl hose 4 is fitted into the insertion hole 7 of the cylinder 6, and then the locking tool 9 is fitted to the base of the vinyl hose 4 from inside the cylinder 6.

At this time, the locking tool 9 is reliably fastened to the tip of the vinyl hose 4 by being pressed by the insertion hole 7 as described above.

Next, as shown in FIG. 13, the diaphragm 5 is installed inside the guide cap 13, and the outer edge of the diaphragm 5 is engaged with a locking portion 13 extending inside the guide cap 13. be done.

Further, in this state, as shown in FIG. 14, the thread 3 with a knot formed at the tip is inserted from the surface into the guide hole 11 of the diaphragm 5, and further the seal 12 is inserted into the guide hole 11 of the diaphragm 5.
is attached to the back surface of the diaphragm 5 together with the tip of the thread 3.

At this time, the thread 3 is attached to the back surface of the diaphragm 5 together with the seal 12 while leaving the knot formed at its tip on the outside of the seal 12. Even if a large tension is applied to the diaphragm 5, the knot at the tip of the thread 3 is locked by the seal 12, so the thread 3 will not easily come off from the diaphragm 5.

Thereafter, as shown in FIG. 15, the cylindrical body 6 is fitted into the guide cap 13, and the string telephone 1 is completed.

Since the cylinder 6 is made of a paper material, it is not only light and easy to handle, but also has the property of being easily plastically deformed when fitting with the vinyl hose 4 and the guide cap 13. Insertion is made more smoothly and more reliably.

Next, the manner of use of the string telephone 1 of this invention will be explained.

First, two children each hold one of the pair of transmitting/receiving parts 2 and 2' tied together via a thread 3, and while keeping the thread 3 under tension, each child places the cylinder 6 in their mouth. At the same time, place the plug 8 at the end of the vinyl hose 4 to your ear.

After that, if each child makes a sound in this state,
The vibrations of the diaphragm 5, the vibrations of the string, and the vibrations of the other diaphragm 5 are transmitted to the other transmitter/receiver section, and can be simultaneously heard as sound from the plug 8 of the other receiver section, and the child speaks. You can enjoy talking on the string telephone 1 without changing the place you call each time.

<Other Examples> It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments, and various other embodiments can be adopted.

<Effects of the invention> As described above, according to this invention, basically, by devising a means for children to directly touch each component with their own hands, it is possible to encourage children's understanding of the transmission of sound as a vibration phenomenon, and to encourage children to understand the transmission of sound as a vibration phenomenon. We aim to increase opportunities for children to come into contact with learning materials in a way that is easy to handle and arouse interest, and we provide a science experience through experiential learning for children from infancy to adolescence, who begin to be curious about everything. An excellent effect is achieved in that the phenomenon can be perceived more accurately.

In other words, by making each component part independent of each other so that it can be assembled and disassembled freely, children who use it can touch and assemble it with their own hands, and as a result, children can experience its principles and structure without being aware of it. Excellent effects are achieved.

Further, an elastic tube is fitted to the side of a cylinder body with a diaphragm attached to one end surface, and the end of the vibration transmission thread is locked to the diaphragm, and the cylinder body is connected to a plurality of vibration transmission threads by the vibration transmission thread. By connecting them together, there is no need to change the place from mouth to ear or ear to mouth each time the speaker changes, and the speaker can also hear his or her own voice at the same time, making it extremely easy for children to use the device. It has the excellent effect of being easy to use.

Furthermore, since both calls can be made at the same time, this has the excellent effect of stimulating children's curiosity and increasing the number of opportunities for them to interact with the string telephone as a teaching material.

Furthermore, by being able to make both calls at the same time, it is possible to experience the phenomenon of waves traveling in opposite directions in a medium without interfering with each other through play, which is an excellent effect.

[Brief explanation of the drawing]

The drawings are explanatory diagrams of one embodiment of this invention, in which Fig. 1 is an overall perspective view, Figs. 2 to 9 are perspective views of component parts, and Figs. 10 and 12 to 15 are perspective views showing the assembly process. , FIG. 11 is a sectional view showing the assembly process. 6... cylinder body, 5... diaphragm, 3... vibration transmission string, 1... string telephone, 4... earphone.

Claims (1)

[Claims for Utility Model Registration] (1) A diaphragm is attached to one end surface of each of the plurality of cylindrical bodies, and the end of the vibration transmission string is locked to the center of the diaphragm, so that the cylindrical bodies are mutually connected. are connected via the vibration transmission thread, each of the above-mentioned parts is formed independently of each other so as to be freely assembled and disassembled, and an earphone consisting of an elastic tube can be inserted and fixed into the side of each of the above-mentioned cylindrical bodies. A thread telephone characterized by: (2) The string telephone according to claim 1, wherein the diaphragm is press-fitted to one end surface of the cylindrical body via a guide cap. (3) The string telephone according to claim 1 or 2, wherein the diaphragm is a resin thin film. (4) The string telephone according to claim 2, wherein the cylindrical body is made of paper material.