JPH0732153Y2 - Pencil sharpener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a manual pencil sharpener, in which a pencil is inserted into an insertion hole and manually rotated.

[Problems to be Solved by Conventional Techniques and Inventions] Conventionally, in this type of pencil sharpener, it is only the pencil insertion hole provided corresponding to the blade that regulates the radial movement of the pencil when in use. Met.

However, this pencil insertion hole is formed with a large diameter to allow insertion of pencils with different thicknesses to some extent, and since it has the minimum necessary length corresponding to the length of the blade, Due to the gap between the pencil insertion hole,
The pencil I was sharpening was rattling when I was using it, and it was difficult to sharpen.
Further, this rattling may cause excessive force to break the lead of a sharpened pencil.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pencil sharpener which reduces the rattling of the pencil being sharpened during use.

[Means for Solving the Problem] In order to achieve this object, according to the present invention, a case having a shaving part having a pencil insertion hole provided corresponding to a blade and a pencil receiving part separately from the pencil insertion hole. When not in use, the shaving part can be stored in the case, and the shaving part has a locking part that forms a locking relationship with the locking part formed on the case when in use. Is designed so as not to move toward the case.

[Operation] In such a configuration, the shaving portion is taken out from the case at the time of use, and the pencil receiving portion of the case is arranged in front of the pencil insertion hole of the shaving portion. Then, the pencil is inserted from the direction of the pencil receiving portion of the case, the tip of the pencil is inserted into the pencil insertion hole of the scraping portion, and brought into contact with the blade body. Then, turn the pencil in the circumferential direction and sharpen it. here,
The movement of the pencil in the radial direction is restricted by the pencil insertion hole and the pencil receiver. Further, when the pencil is sharpened, the case and the locking portion of the sharpened portion are locked, so that the sharpened portion does not return to the inside of the case while sharpening the pencil. On the other hand, the shaving part is stored in the case when not in use.

[First Embodiment] A pencil sharpener according to a first embodiment of the present invention will be described below.
4 to 4 will be described.

The pencil sharpener of this embodiment comprises a sharpening section 1 and a case 2.

As shown in FIG. 4, a conical pencil insertion hole 3 is formed on the front surface of the scraping portion 1, and a blade body 4 is attached to the scraping portion 1. The blade tip of the blade body 4 is exposed in the pencil insertion hole 3. Further, projections 5 serving as locking portions are formed on both left and right sides of the circular front end of the scraped portion 1.

On the other hand, the case 2 has a bottomed cylindrical shape, and the inside thereof is a storage hole 6. A circular pencil receiving hole 7 is formed on the front wall of the case 2. Guide holes 8 extending in the front-rear direction are formed on the left and right sides of the outer peripheral wall of the case 2, and locking holes 9 that are upwardly bent locking portions are formed at the rear ends of the guide holes 8.

In use, as shown in FIGS. 1 and 2, the scraping part 1 is taken out from the case 2 so that only the front end part of the scraping part 1 is inserted into the housing hole 6 in the case 2, and both parts of the scraping part 1 are removed. The protrusion 5 is engaged with both the locking holes 9 of the case 2 to remove the scraped portion 1.
Is fixed to the case 2. Pencil insertion hole 3 in this state
The mouth portion 3a and the pencil receiving hole 7 are separated from each other and face each other.

On the other hand, when not in use, the shaving part 1 is pushed into the case 2 from the usage state shown in FIGS. 1 and 2, and the both projections 5 of the shaving part 1 are guided along the both guide holes 8 from the two locking holes 9 of the case 2. Then, as shown in FIG. 3, the shaving part 1 is entirely housed in the housing hole 6 of the case 2. In this state, the mouth 3a of the pencil insertion hole 3 and the pencil receiving hole 7 are close to each other and face each other.

As shown in FIG. 2, in the pencil sharpening portion configured in this manner, the pencil A is inserted from the pencil receiving hole 7 and the tip of the pencil A is inserted into the pencil insertion hole 3 through the mouth 3a during use. . Then, the pencil A is rotated in the circumferential direction to scrape the tip of the pencil A with the blade 4. In this state, the pencil A is restricted from moving in the radial direction by the pencil insertion hole 3 and the pencil receiving hole 7.

Therefore, in use, the movement of the sharpening pencil A in the radial direction is restricted by the pencil receiving hole 7 as well as the pencil insertion hole 3, and thus the shading pencil A can be prevented from rattling. Moreover, since the pencil receiving hole 7 regulates the movement of the pencil A at a position apart from the pencil insertion hole 3, rattling can be further prevented. In addition, the scraping part 1 when not in use
Since it can be stored in the storage hole 6 of the case 2, it is not bulky.

Further, since the projection 5 of the scraping portion 1 is engaged with the locking hole 9 of the case 2, the scraping portion 1 is fixed to the case 2 and the pencil sharpening work is stabilized.

[Second Embodiment] Next, a fifth embodiment of the pencil sharpener according to the second embodiment of the present invention will be described.
~ It demonstrates with reference to FIG.

The pencil sharpener of this embodiment comprises a sharpening section 10 and a case 11 as in the pencil sharpener of the first embodiment.

As shown in FIG. 7, a conical pencil insertion hole 12 is formed in the front surface of the substantially rectangular parallelepiped scraping portion 10, and a blade 13 is attached to the scraping portion 10. The blade tip of the blade body 13 is exposed in the pencil insertion hole 12. Further, locking recesses 14 are formed on the upper and lower surfaces of the front end of the shaving portion 10, and locking grooves 15 as a pair of locking parts are formed on both left and right sides of the locking recess 14.

On the other hand, the case 11 is formed in a U shape from the upper wall 11a, the lower wall 11b, and the front wall 11c, and the inside of the case 11 is a storage portion 16. A circular pencil receiving hole 17 is formed in the front wall 11c of the case 11. Locking projections 18 are formed on the inner surfaces of the rear ends of the upper and lower walls 11a, 11b of the case 11, and a pair of locking projections 19 are formed on the left and right sides of the locking projections 18. There is.

In use, as shown in FIG. 5, the scraping part 10 is so arranged that only the front end part of the scraping part 10 is inserted into the housing part 16 of the case 11.
Is removed from the case 11, and the engaging projection 18 and the engaging projection 19 of the case 11 are engaged in the engaging recess 14 and the engaging groove 15 of the scraping portion 10, respectively, so that the scraping portion 10 with respect to the case 11. Fixed. In this state, the mouth 12a of the pencil insertion hole 12 and the pencil receiving hole 1
7 and are spaced apart and face each other.

On the other hand, when not in use, the shaving part is changed from the use state shown in FIG.
Rotate 10 around the locking projection 18 of the case 11 to
While pushing it in, the locking ridge 19 of the case 11 and the scraped part
The engagement with the engaging groove 15 of 10 is released, and the entire scraped portion 10 is accommodated in the accommodating portion 16 of the case 11 as shown in FIG. The scraped portion 10 is fixed to the case 11 by engaging them. In this state, the mouth 12a of the pencil insertion hole 12 is located on the opposite side of the pencil receiving hole 17.

In the pencil sharpener having such a structure, as shown in FIG. 5, when used, the pencil A is inserted through the pencil receiving hole 17, and the tip of the pencil A is inserted into the pencil inserting hole 12 through the mouth 12a. . Then, the pencil A is rotated in the circumferential direction and the tip of the pencil A is scraped off by the blade 13.

At this time, as in the first embodiment, it is possible to reduce rattling of the sharpened pencil A. Also, it does not become bulky when not in use.

Further, since the locking groove 15 of the scraping portion 10 engages with the locking projection 19 of the case 11, the scraping portion 10 is fixed to the case 11 and the pencil sharpening work is stabilized.

[Third Embodiment] Next, the eighth embodiment of the pencil sharpener according to the third embodiment of the present invention will be described.
This will be described with reference to FIGS.

The pencil sharpener of this embodiment comprises a sharpening section 20 and a case 21 as in the pencil sharpeners of the first and second embodiments.

As shown in FIG. 10, a conical pencil insertion hole 22 is formed in the front surface of the substantially rectangular parallelepiped scraping portion 20, and a blade body 23 is attached to the scraping portion 20. The edge of the blade 23 is exposed in the pencil insertion hole 22. Further, projections 24, which are locking parts, are formed on the left and right sides of the front end of the scraping part 20, and a pair of locking projections 25 are formed on the upper and lower sides of the projections 24.

On the other hand, the case 21 has a rectangular parallelepiped shape that opens rearward, and the inside thereof is a storage hole 26. A circular pencil receiving hole 27 is formed in the front wall of the case 21. Recesses 28, which are locking portions, are formed on both left and right walls of the rear end of the case 21, and a pair of locking holes 29 are formed on the upper and lower sides of the recess 28.

In use, as shown in FIG. 8, the scraping portion 20 is formed so that only the front end portion of the scraping portion 20 is inserted into the housing hole 26 of the case 21.
Is removed from the case 21, and the protrusion of the scraping part 20
24 and the locking projection 25 are engaged with the recess 28 and the locking hole 29 of the case 21, respectively, and the scraping portion 20 is fixed to the case 21. In this state, the mouth 22a of the pencil insertion hole 22 and the pencil receiving hole 27 are
They are separated and face each other.

On the other hand, when not in use, the shaving part is changed from the use state shown in FIG.
While moving 20 in the direction of pulling out from the storage hole 26 of the case 21, engagement of the projection 24 of the scraping portion 20 and the recess 28 of the case 21,
Also, the engagement between the locking projection 25 of the shaving part 20 and the locking hole 29 of the case 21 is released, and the shaving part 20 is extracted from the case 21 and inverted, and the front and rear are reversed as shown in FIG. The entire scraped portion 20 is housed in the housing hole 26 of the case 21, and the projection 20 and the locking projection 25 are engaged with the recess 28 and the locking hole 29 again to fix the scraped portion 20 to the case 21. In this state, the mouth 22a of the pencil insertion hole 22
Is located on the opposite side of the pencil receiving hole 27.

In the pencil sharpener configured in this way, the first,
2 Sharpen a pencil as in the case of using the pencil sharpener of the embodiment. At this time, as in the first embodiment, it is possible to reduce rattling of the sharpened pencil A. Also, it does not become bulky when not in use.

Further, since the projection 24 of the scraping portion 20 engages with the recess 28 of the case 21, the scraping portion 20 is fixed to the case 21 and the pencil sharpening work is stabilized.

The pencil sharpener of the present invention is not limited to the first to third embodiments.

For example, the pencil receiving hole may be provided continuously from the pencil insertion hole.

Further, the pencil receiving hole may have a semicircular shape that is open upward instead of the circular shape.

[Advantages of the Invention] As described in detail above, in the present invention, since the pencil receiving portion is provided in addition to the pencil insertion hole provided corresponding to the blade body, it is possible to reduce rattling of the sharpened pencil. Also, since the scraping part can be stored in the case when not in use, it is not bulky. Further, the sharpening portion does not move toward the case while sharpening the pencil, and the pencil can be sharpened stably.

[Brief description of drawings]

1 to 4 show a pencil sharpener of a first embodiment according to the present invention, FIG. 1 is a perspective view showing a use state of the pencil sharpener, FIG. 2 is a sectional view of the same, and FIG. 3 is the same. FIG. 4 is a perspective view showing the unused state of the pencil sharpener, FIG. 4 is an exploded perspective view of the pencil sharpener,
5 to 7 show the pencil sharpener of the second embodiment, FIG. 5 is a perspective view showing a use state of the pencil sharpener, and FIG. 6 is a perspective view showing a non-use state of the pencil sharpener. FIG. 7 is an exploded perspective view of the same pencil sharpener, FIGS. 8 to 10 show the pencil sharpener of the third embodiment, FIG. 8 is a perspective view showing a usage state of the same pencil sharpener, and FIG. The perspective view showing the unused state of the pencil sharpener,
FIG. 10 is an exploded perspective view of the pencil sharpener. Shaving parts 1,10,20, cases 2,11,21, pencil insertion holes 3,12,22,
Blades 4, 13, 23, pencil receiving holes 7, 17, 27.

Claims (1)

[Scope of utility model registration request] 1. A shaving part (1, 10, 20) having a pencil insertion hole (3, 12, 22) provided corresponding to a blade (4, 13, 23), and this pencil insertion hole (3, 12,22) and a case (2,11,21) that has a pencil receiving part (7,17,27) separately. When not in use, the scraping part (1,10,20) is a case (2,11). , 21), and the cut part (1,10,20) has a locking part (5,15,24) formed on the case (2,11,21) when used. It has a locking relationship with the stop (9,15,18,19,28) and the cut part (1,10,
A pencil sharpener characterized in that 20) does not move in the direction of the case (2, 11, 21).