JPH038479Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a pencil sharpener, in which the rotational force during pencil cutting is stored in a power storage mechanism, and this stored energy is used to drive the wheels, for example. It has been made available for use, etc.

<Prior Art> As is well known, conventional pencil sharpeners apply axial rotation to the pencil inserted through the pencil insertion slot, and sharpen the lead of the pencil using a cutting blade provided at the tip. ing. In other words, it only has a single function as a pencil sharpener.

<Problems to be Solved by the Invention> As described above, the conventional pencil sharpener only has a single function as a pencil sharpener. For this reason, young children, who are the main users of pencil sharpeners, lack the fun of using them, their dreams of using them, or their accessories.
There is no hope that it will contribute to children's emotional education.

Therefore, the problem of this invention is to solve the above-mentioned conventional problems, and to not only achieve the original function of a pencil sharpener, but also to
To provide a pencil sharpener that also has the function of a toy, is fun to use, is rich in dreams, accessories, or collectibles, and is suitable for emotional education for infants, children, etc.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the pencil sharpener according to the present invention includes a pencil insertion opening and a cutting blade disposed at the tip of the pencil inserted from the pencil insertion opening. a cutting part; a rotating body provided near the pencil insertion slot and driven to rotate by contacting the outer circumferential surface of the pencil when the shaft of the inserted pencil rotates; and a force storage mechanism for accumulating the rotational force of the rotating body. , a pencil sharpener having a movable mechanism that operates using energy stored in the force storage mechanism as a power source, and a brake mechanism, wherein the force storage mechanism includes a cylinder, a ratchet mechanism, a spring for energy storage, and a brake mechanism. The cylindrical body includes a gear, and the cylindrical body has a fixed shaft rotatably inserted through a bearing provided approximately in the center of the inner diameter hole, and is configured to rotate in response to the rotational force of the cylindrical body. The ratchet mechanism is configured by engaging a ratchet pawl with a pawl gear formed on the cylindrical body, and the spring has a coil shape and is coupled to the cylindrical body. It is provided so as to be wrapped around the outer periphery of the bearing in the inner diameter hole, one end is fixed to the cylindrical body, and the other end is fixed to the gear, and the gear is rotatably fixed to the shaft. , coupled to supply stored energy to the movable mechanism, and the brake mechanism is configured to prevent the movable mechanism from operating by the energy provided from the force storage mechanism. It is characterized by being

<Operation> When a pencil is inserted through the pencil insertion opening of the cutting part and rotated, the tip of the pencil is cut by the cutting blade, and the lead of the pencil is sharpened. At the same time, a rotating body provided near the pencil insertion opening contacts the outer peripheral surface of the pencil and is driven to rotate. This rotational motion of the rotating body is transmitted to the force storage mechanism and stored therein. and,
The energy stored in the power storage mechanism is transmitted to a movable mechanism, such as wheels, and the movable mechanism operates. Therefore, not only the original function of a pencil sharpener, but also
A pencil sharpener can be obtained which also functions as a toy, is fun to use, is a dream come true, is rich in accessories or collectibles, and is suitable for emotional education for infants, children, etc.

The rotational motion of the rotating body is transmitted to the cylindrical body constituting the force storage mechanism, causing it to rotate. In this case, a brake mechanism applies rotational braking force to the movable mechanism. Due to this braking action, the gear provided in the force storage mechanism becomes unable to rotate, and the spring is caught between the gear and the barrel, and the rotational force of the barrel due to the rotation of the pencil's axis is stored as spring energy. Ru. During energy storage, the ratchet mechanism works, so
Even if the pencil is removed, the energy stored in the spring will not be released from the cylinder side.

Next, when the brake mechanism is released after sharpening the pencil lead, the movable mechanism starts operating due to the energy stored in the spring. Also in this case,
Since rotation of the cylinder is prevented by the ratchet mechanism and the energy stored in the spring is used only to rotate the gear, the stored energy is not released from the cylinder side. That is, the energy stored in the spring is released in only one direction toward the movable mechanism.

<Example> FIG. 1 is a perspective view of the main parts of a pencil sharpener according to the present invention. In the figure, 1 is a bottom plate and 2 is a top plate, which are made of suitable plastic. The top plate 2 is attached to the bottom plate 1 by several pillars 3.
It is installed and fixed on top of. 4 is a cutting part, 5 is a rotating body, 6 is a force storage mechanism, and 7 is a movable mechanism.

The cutting part 4 includes a pencil insertion opening 41 and a cutting blade 42 inserted through the pencil insertion opening 41 and placed at the tip of the pencil, and is fixedly attached to the upper surface of the upper plate 2. Such a sharpener 4 is constituted by, for example, a general manual pencil sharpener.

The rotating body 5 is provided in the vicinity of the pencil insertion opening 41 of the cutting part 4, and is rotated by contacting the outer circumferential surface of the pencil when the axis of the pencil rotates. It is desirable that the outer circumferential surface of the rotating body 5, which the pencil comes into contact with, has a large circumferential friction. As a means for this purpose, this embodiment has a structure in which a gear 52 made of a material with a large coefficient of friction, such as rubber, is attached to the outer peripheral surface of a disc-shaped base 51. The rotary body 5 has a shaft 53 rotatably fixed to two support plates 8 and 9 that stand side by side on the bottom plate 1, and a gear 54 is mounted on the output side of the shaft 53.

The force storage mechanism 6 stores the rotational force transmitted from the rotating body 5. In this embodiment, the bottom plate 1
A cylindrical body 62 is made to protrude from the inside to the outside from one side 611 of a box 61 made of plastic or the like that is attached and fixed on top, and the gear 54 of the rotating body 5 and the gear 54 of the rotating body 5 are attached to the tip of this cylindrical body 62. Gears 63 that mesh with each other are coaxially mounted. Power storage mechanism 6
The most important parts are incorporated inside the box 61. 2 and 3 are diagrams showing the specific structure of the force storage mechanism 6, in which the inner diameter hole 621 of the cylinder body 62
A box 61 is mounted on a bearing 622 provided approximately at the center of the
The shaft 10 protruding from the other side plate 612 is rotatably inserted thereinto, and a pawl gear 623 is formed on the end surface of the cylindrical body 62, and with respect to the pawl gear 623,
Ratchet pawl 11 integrally fixed to box 61
A ratchet mechanism is constructed by meshing the two with their own elasticity.

Further, a coil-shaped spring 12 for energy storage is fitted around the outer periphery of the bearing 622 in the inner diameter hole 621, and one end 121 of the spring 12 is hooked to a protrusion 624 protruding from the bottom surface of the inner diameter hole 621. The end 122 is hooked onto a protrusion 131 on a gear 13 rotatably fixed to the shaft 10.

The energy stored in the spring 12 of the force storage mechanism 6 is transferred to the gear 1 which latches one end 122 of the spring 12.
3. It is transmitted to the output shaft 16 through the gear 14 meshing with the gear 13 and the gear 15 meshing with the gear 14. The output shaft 16 has a gear 1 that meshes with the gear 15.
61 and an output gear 162.

In this embodiment, the movable mechanism 7 includes a pair of wheels 7.
1. In FIG. 1, only one of the pair of wheels 71 is shown. The pair of wheels 71 are integrally connected by an axle 72 rotatably fixed on the bottom plate 1. Axle 7
2, a gear 73 is meshed with the gear 162 of the output shaft 16 of the force storage mechanism 6 and is rotationally driven.
is fixed on the shaft.

When storing energy in the spring 12 of the force storage mechanism 6, it is necessary to stop the operation of the movable mechanism 7. As a means for achieving this, in this embodiment, as shown in FIG. The rotation of the wheel 71 can be locked by bringing the provided brake piece 19 into pressure contact with the outer peripheral surface of the wheel 71. The brake piece 19 is formed by pasting a thin piece of rubber or the like with a large frictional force.
Further, in order to increase the braking force, it is preferable to coat the outer peripheral surface of the wheel 71 with rubber or the like. 20 and 21 are rear wheels, and 22 to 24 are exterior cases.

Next, the operation of the above embodiment will be explained.

First, as shown in FIG.
When the pencil A is inserted into the pencil insertion slot 41 as shown by arrow a and rotated in the direction of arrow b, the tip of the pencil A is cut by the cutting blade 42 and the lead of the pencil is sharpened. At the same time, the rotating body 5 provided near the pencil insertion opening 41 contacts the outer peripheral surface of the pencil A and is driven to rotate. This rotational movement of the rotating body 5 is controlled by the force storage mechanism 6 by a gear 54 attached to an output shaft 53 and a gear 63 meshing with the gear 54.
is transmitted to the cylindrical body 62 constituting the body, causing it to rotate. In this case, if the brake arm 18 is rotated in the direction of arrow c and the brake piece 19 is brought into pressure contact with the outer peripheral surface of the wheel 71 to apply rotational braking force to the movable mechanism 7 (see Fig. 4), the stored force is Output shaft 1 of mechanism 6
Since the output gear 162 attached to the output shaft 16 cannot rotate, the output shaft 16, its gears 161, 162, and gears 15 to 13 are in a locked state (see FIGS. 2 and 3). Therefore, the rotational force of the cylindrical body 62 due to the axis rotation of the pencil A is stored in the spring 12 as energy.

Since the ratchet mechanism operates during energy storage, even if the pencil A is removed, the energy stored in the spring 12 will not be released from the cylindrical body 62 side.

Next, after finishing sharpening the lead of the pencil A, the brake arm 18 is rotated in the direction of the arrow d to release the pressure contact state of the brake piece 19 against the wheel 71.
The rotation lock of the wheel 71 is released (see Fig. 4).
Then, the energy stored in the spring 12 is sequentially transmitted to the gears 13 to 15, the output shaft 16, the gear 162, and the gear 73, and the wheel 71 is rotationally driven, causing the entire body to travel in the direction of arrow A, for example. . Therefore, a pencil sharpener can be obtained that has not only the original function of a pencil sharpener but also the function of a toy. In the operating state, rotation of the cylinder 62 is prevented by the ratchet mechanism, and the spring 1
Since the energy stored in the cylinder 6 is used only to rotate the gear 13, the stored energy is
It will not be emitted from the second side. The energy stored in the spring 12 is released in one direction only to the movable mechanism.

The outer cases 22 to 24 are, for example, used for animals, trains,
The shapes of various objects that attract children's interest, such as automobiles or manga characters, can be selected. By doing this, the fun of using it, the dream,
A pencil sharpener can be obtained that is rich in accessory or collectible properties and is suitable for emotional education for infants, children, etc.

<Effects of the invention> As described above, according to the present invention, the following effects can be obtained.

(a) The rotational force generated when sharpening a pencil is stored in a power storage mechanism, and this stored energy is used, for example, to drive wheels, so that it not only functions as a pencil sharpener, but also as a toy. It is possible to provide a pencil sharpener which also has the function of a pencil sharpener, is fun to use, is a dream come true, is rich in accessory or collectible properties, and is suitable for emotional education of infants, children, etc.

(b) The force storage mechanism includes a cylinder, a ratchet mechanism, an energy storage spring, and a gear, and the brake mechanism can prevent the movable mechanism from operating by the energy provided by the force storage mechanism. Because it is prepared so that while sharpening a pencil,
It is possible to provide a pencil sharpener that stores energy in a spring by rotating a cylinder while preventing the movable mechanism from operating, and releases the stored energy in one direction only to the movable mechanism.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the pencil sharpener according to the present invention, Fig. 2 is a sectional view showing the structure of the power storage mechanism, and Fig. 3 is an exploded perspective view of the pencil sharpener according to the present invention.
The figure is a cross-sectional view taken along line A ₁ - A ₁ in Figure 2.
This figure shows the wheel locking mechanism, and FIG. 5 is a perspective view showing the state of use. 4...Cutting part, 41...Pencil insertion slot, 42...
Cutting blade, 5... Rotating body, 6... Force storage mechanism, 7...
Movable mechanism.

Claims (1)

[Claims for Utility Model Registration] A pencil insertion opening, a cutting part with a cutting blade disposed at the tip of the pencil inserted from the pencil insertion opening, and a cutting part provided near the pencil insertion opening for cutting the inserted pencil. A rotating body that is rotationally driven by contacting the outer peripheral surface of the pencil when the shaft rotates, a force storage mechanism that accumulates the rotational force of the rotating body, and a movable body that operates using the energy accumulated in the force storage mechanism as a power source. mechanism and
A pencil sharpener having a brake mechanism, wherein the force storage mechanism includes a cylinder, a ratchet mechanism, a spring for energy storage, and a gear, and the cylinder is provided approximately at the center of the inner diameter hole. A stationary shaft is rotatably inserted into the bearing, and is coupled to the rotary body so as to rotate in response to the rotational force thereof, and the ratchet mechanism is a pawl gear formed on the cylindrical body. The spring has a coil shape and is provided so as to be wrapped around the outer periphery of the bearing in the inner diameter hole of the cylindrical body, and one end of the spring is formed by engaging a ratchet pawl with the cylindrical body. and the other end is fixed to the gear; the gear is rotatably fixed to the shaft and coupled to supply stored energy to the movable mechanism; A pencil sharpener characterized in that a brake mechanism is provided to prevent the movable mechanism from operating due to energy given from the force storage mechanism.