JPS6341196Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a novel pencil sharpener with a driving wheel. More specifically, the present invention relates to a pencil sharpener with driving wheels that has the elements of a toy and allows users to sharpen pencils while having fun.

Conventionally, various types of rotary pencil sharpeners have been used that can safely and easily sharpen pencils by applying relative rotation between the pencil and the sharpening blade.

For example, there are simple fixed-blade types that allow you to sharpen pencils by inserting the pencil into the insertion hole and rotating it. There are a wide variety of types, including electric types that are driven by a motor and automatically stop when the cutting is finished.

However, conventional pencil sharpeners are usually office supplies that place emphasis on efficiency, and even pencil sharpeners for children have only been modified to the extent of decorating the surface or external shape with characters.

Therefore, the inventor of this invention has conducted extensive research to give the pencil sharpener a form and function that will appeal strongly to children.As a result, the inventor of the present invention has found that the pencil sharpener itself can be used as a toy, and that it can be used while playing with the toy. When configuring the pencil to be sharpened, we came up with a new idea to arouse children's interest and make the simple task of shaving a pencil fun.After conducting various research based on this idea, we came up with this idea. I've come to the point where I can complete it.

That is, the present invention includes a main body, a driving wheel rotatably provided on the main body, and a cut portion provided on the main body,
a guide portion for the scraping portion to guide the pencil;
The gist of the invention is a pencil sharpener with a driving wheel, which has a cutting blade for sharpening a pencil, and the driving wheel and the scraping part are connected so that the rotation of the driving wheel is converted into the relative rotation of the guide part and the cutting blade. It is something to do.

Next, the pencil sharpener with a driving wheel of the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a pencil sharpener with a driving wheel according to the present invention, and FIGS. 2 and 3 are bottom views showing an example of the internal structure of the pencil sharpener with a driving wheel according to the present invention.

In Fig. 1, numeral 1 indicates the main body of a pencil sharpener with driving wheels. A pair of driving wheels 3 having a relatively large diameter and a pair of floating wheels 4 having a small diameter are each rotatably attached to the side wall 2 of the main body 1.
Note that at least one driving wheel 3 is required, and a portion of it must protrude from the bottom so as to make contact with the surface of a desk, etc. The size, number, placement position, material, etc. can be selected as appropriate depending on the type of doll (such as an animal doll, etc.). For example, wide unicycles, two-wheeled ones connected by an axle, three or more wheels cooperating with each other, ones with caterpillars,
Some have driving wheels and idle wheels arranged on the circumference so that the main body can rotate at that position, others have driving wheels that are mostly housed within the main body 1 and only a part protrudes from the bottom. can give.

An insertion hole 6 for inserting a pencil 5 is formed at one end of the main body 1. More pencils 5
A pencil holder 7 is provided facing the insertion hole 6 for holding the pencil so that it does not rotate and feeding the pencil into the insertion hole 6 as it is being scraped. The insertion hole 6 and the pencil holding part 7 constitute a guide part for guiding the pencil. FIG. 1 shows two gripping tools 9 that are rotatable around a pin 8 and biased in the directions of arrows A and B by springs (not shown), and two rods 10. The pencil holder 7 is shown as being slidably guided by a spring 11 and biased in the direction of arrow C by a spring 11; Any device that has the function of holding and feeding pencils, such as one in which the gripping tool slides in a straight line, or one in which a flat or square guide rod is used in place of the two rods 10, etc. Can be used.

In the pencil sharpener with a driving wheel of the present invention, one having the pencil holder is preferable because it is easy to use since there is no need to hold the pencil by hand. However, the present invention is not limited to that, for example, the main body 1
When the pencil is used vertically and the insertion hole 6 faces upward or diagonally upward, or when it is easy to support the pencil by hand, or when an energy storage member is adopted as described later. In other cases, the pencil can be held and fed by hand, so a guide member (not shown) that guides the pencil so that it does not rotate and can slide freely in the axial direction, or a simple insertion hole is used as a guide. etc. may be adopted. Furthermore, the gripper 9 may be given the shape of an animal's mouth that opens and closes, and the upper end of the gripper 9 may be given the shape of an animal's ear.

As shown in FIG. 2, the two driving wheels 3 are connected by an axle 12, and a first bevel gear 13 is fixed to the axle 12. Inside the main body 1, a block 14 having a rotation center substantially perpendicular to the axle 12 is rotatably provided. The block 14 has a conical hole 15 concentric with the insertion hole 6.
A slit 16 is formed which communicates the hole 15 with the outside, and a flat rotary blade 17 is attached along the slit 16.

The first bevel gear 1 is attached to one end of the block 14.
A second bevel gear 18 that meshes with 3 is fixed. Note that 19 is a lid that can be opened and closed.

In the pencil sharpener with a driving wheel shown in FIG. 3, a multi-threaded rotary blade 20 is used in place of the flat rotary blade 18 in FIG. 2. The rotary blade 20 revolves together with the block 14, and also rotates on its own axis based on the engagement between a pinion portion 21 provided at the end of the rotary blade 20 and a ring gear 22 fixed to the main body 1. This type has the advantage of being able to sharpen pencils with a smaller rotational force than the type shown in Figure 2.

In the pencil shaving shown in FIGS. 2 and 3, the rotation centers of the driving wheel 3 and the rotary blades 17, 20 are perpendicular to each other, and the two bevel gears 13, 1
8, the axle 12 and the block 14 are connected via a torque transmission mechanism, but the present invention is not limited to these cases, and the axle 12 and the block 14 are directly connected, or are installed in parallel. Various torque transmission mechanisms can be employed depending on the appearance of the main body 1, such as those that are twisted or twisted. If the direction in which the main body 1 is advanced is determined by the appearance of the main body 1, it is preferable to configure the torque transmission mechanism so that the pencil can be scraped when the main body 1 is advanced in the advancing direction, as will be described later.

In the pencil sharpener with a driving wheel of the present invention shown in FIGS. 1 to 3, the pencil holder 7 is provided so as not to rotate with respect to the main body 1, and the rotary blades 17 and 20, which are cutting blades, are attached to the main body 1. The torque of the driving wheel 3 is applied to the rotary blade 1.
7 and 20 are rotated. However, since the pencil is sharpened by the relative rotation of the cutting blade and the pencil 5, the effects of the present invention can be achieved if the cutting blade and the pencil holder are provided so as to be relatively rotatable. That is, the cutting blade may be fixed to the main body, and the pencil holder may be rotatably provided to the main body 1. An example of such a device is one in which the pencil holding portion 7 is provided on the axle 12 or the block 14, for example.

In the pencil sharpener with a driving wheel of the present invention, in any of the embodiments described above, an energy storage member such as a flywheel or a mainspring is interposed between the driving wheel 3 and the sharpening part, or the power of a motor is used to It is preferable to configure the cutting section to be driven directly or via a driving wheel. In that case, the work of rotating the driving wheels and the work of shaving the pencil can be performed separately, so that the work of shaving the pencil can be made even easier. For example, it is easy to hold the main body 1 with one hand and hold and feed the pencil with the other hand.

Although a household power source may be used as the power source for the motor, it is preferable to use a battery from the viewpoint of portability. Conventionally known motors, flywheels, springs, and mechanisms for controlling or decelerating their driving forces may be used. For example, when using a mainspring, it is preferable to provide a reverse rotation prevention mechanism for holding the mainspring in a wound state and a means for releasing the same, and to extract power from the mainspring only when necessary.

Next, a method of using the pencil sharpener with a driving wheel shown in FIG. 1 will be explained.

First, as shown in FIG.
Pull out and insert the pencil 5 into the insertion hole 6,
Hold pencil 5.

Next, the main body 1 is held in the hand and moved in the direction of arrow D while being pressed against, for example, a desk. As a result, the driving wheel 3 is rotated in the direction of arrow E, and the axle 1
2. Block 14 via bevel gears 13 and 18
rotates in the direction of arrow F. Therefore, pencil 5
is cut into a conical shape by the rotary blade 17. Store the shavings inside the main body 1 and remove the lid 1 at an appropriate time.
Open 9 and take it out.

When using the energy storage member or using a motor, it is possible to sharpen the pencil while rolling it on the desk, or even when it is off the desk.

As mentioned above, the pencil sharpener with a driving wheel of the present invention applies rotational force to the driving wheel instead of applying driving force from a handle, etc., and thereby sharpens the pencil. Therefore, when giving the main body 1 the appearance of a vehicle, an animal, a character doll, a robot, etc., depending on the appearance, you can play with the pencil by rolling it horizontally (see Figure 1) or standing up on a desk. It is particularly appealing to children as it can be used to sharpen objects, and its practical value is extremely high.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a pencil sharpener with a driving wheel according to the present invention, and FIGS. 2 and 3 are bottom views showing an example of the internal structure of the pencil sharpener with a driving wheel according to the present invention. Main symbols in the drawing: 1: Main body, 3: Driving wheel, 5: Pencil, 7: Pencil holder, 17, 20: Rotating blade.

Claims (1)

[Claims for Utility Model Registration] A guide portion comprising a main body, a driving wheel rotatably provided on the main body, and a scraped portion provided on the main body, the scraped portion guiding a pencil. and a cutting blade for shaving the pencil, the driving wheel and the shaving part being connected so as to convert rotation of the driving wheel into relative rotation of the guide part and the cutting blade.