JPH075795U - Knob type core remover holder - Google Patents

Abstract

(57) [Abstract] [Purpose] A knob type core sharpener for sharpening the refill core for thick core mechanical pencils used in drafting is well known and convenient, such as domestic and foreign made. However, there are problems such as the processing of shavings and the fact that they are too small and easy to lose. [Structure] A synthetic resin airtight container having a detachable lid is provided with holes and projections to hermetically fit and hold a core sharpener. Furthermore, the insertion hole of the core is covered with an elastic cover having a cross-shaped small cut to form a holder having a structure in which the shavings of the core are not leaked to the outside of the closed container, and the loss is prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a core sharpener for a thick core mechanical pencil (10) that can be used for drawing or the like or can be used by elementary and junior high school students for learning.

[0002]

[Prior art]

 Conventionally, the knob type core sharpener (8) is small and is used by being picked by a finger, and a foreign or domestic "knurl type core trimmer" is known. Although the performance is good and the price is low, the problem is that it is easy to hold and lose during use due to the processing of shavings and the small size.

[0003]

[Problems to be solved by the device]

 As described above, the "picking type core remover" (8) has the following drawbacks. (A) Since the shavings of the core are directly discharged to the outside, there is a problem in the processing. (B) Since it is small, it is easy to lose and there is a problem in holding it during use. This proposal was made to eliminate these drawbacks.

[0004]

[Means for Solving the Problems]

 (A) The main body (2) and the lid (3) of the closed container are detachably attached, and a hole for fitting and holding the knob type core remover (8) in a hermetically sealed state near the upper center of the lid (3). (4) is provided. The pinching type core remover (8) can be easily press-fitted into the hole (4) by elastic deformation from either upward or downward direction. Protrusions (5) as shown in "Fig. 4" are provided at appropriate positions in the holes (4), and fitted so that the cover (6) can be attached to the upper surface of the knob type core sharpener (8). Make it a structure that can be held. "Fig. 2" (b) In order to prevent shavings from leaking from the core insertion hole (9) of the core remover after fitting and holding the knob type core remover (8) on the lid (3), A cover (6) made of an elastic material such as rubber provided with a cross-shaped small cut (7) is attached to the lid (3) by adhesion, fitting or other method. "Fig. 2" "Fig. 3" "Fig. 4"

[0005]

[Action]

 When shaving the lead (11) of the thick lead mechanical pencil (10), the lead (11) is inserted through the cross-shaped small cut (7) of the cover (6) of the lead remover (8) by appropriately extending the lead (11). Turn 11) or turn the knob type core remover holder to scrape the core. Shavings are ensured to fall into the container body (2). Therefore, even if the core sharpener holder (1) is placed sideways, the cross-shaped small cut (7) is closed, and since it is located in the center of the lid, there is no risk of shavings spilling. Further, since the closed containers (2) and (3) are much larger than the knob type core remover (8), there is no fear of loss. When discarding core scraps, remove the lid (3) from the main body (2) and discard the scraps, and also remove the knob type core sharpener (8) from the lid (3) to easily grind the blades. I can. "Fig. 1" "Fig. 2"

[0006]

First Embodiment An embodiment corresponding to “Claim 1” will be described below. FIG. 1 shows an embodiment of the knob type core remover holder (1). (A) The main body (2) and the lid (3) of the synthetic resin hermetically-sealed container are detachably sealed by fitting. (B) If the knob type core sharpener (8) is press-fitted into the central hole (4) of the lid (3), it will be elastically deformed, and it will be sunk from the upper surface of the lid (3) by the protrusion (5). It can be easily press-fitted into the position of and is sealed and held. (C) A rubber cross-shaped small cut (7) is provided between the top surface of the lid (3) and the top surface of the knob type core sharpener (8) to prevent shavings from leaking through the core insertion hole (9). Attach the cover (6) by fitting as shown in "Fig. 2" "Fig. 3" "Fig. 4". Alternatively, it may be attached by adhesion. (D) Although the figure shows the case where the closed container has a cylindrical shape, a cylindrical shape other than a circle is preferable because it does not roll when laid down.

[Embodiment 2] FIG. 5 shows a simple case of a knob type core remover holder (1 ') using a well-known camera film case (12). (A) On the upper surface of the lid (3) of the film case (12), a hole shape (4 ') is cut out as shown in "Fig. 6" to make a hole (4'). Insert the knob type core remover (8) into this hole and attach it. At this time, the hole (4 ') can be easily formed by attaching a paper mold (15) in which the hole shape (4') is drawn and cutting it with a cutter knife. (B) Next, as shown in "Fig. 2" and "Fig. 6", a cross-shaped small cut (7) is provided on the vinyl tape or the rubber tape (13), and the core insertion hole of the knob type core sharpener (8) is inserted. (9) Stick on top to prevent leakage of shavings from the core. By the above method, the film case (12) can be used as a simple-type knob type core remover holder (1 '). (C) By modifying a known film case, making a convex thin film bulge (14) corresponding to the hole shape (4 ') and placing it, and if necessary, by cutting the flat convex thin film bulge flat with a cutter knife, the hole ( 4 ') can be easily created. "Figure 7"

[0007]

[Effect of device]

 A normal pencil is one in which the core is wrapped with wood, and when the core is shaved, the wood can be shaved together, so there is a lot of shavings. Even if a large amount of core is scraped with a thick core sharpener core scraper, the amount of core scrap is small and the closed containers (2) and (3) can be made compact. In the case of the knob type core scraper holder (1) The shavings stay in the closed container, the hole (4) is in the center, and the cover (6) prevents the shavings from leaking out of the container. Therefore, the core remover according to the present invention is convenient to carry, has no concern about being soiled by core scraps, and is highly useful.

[Brief description of drawings]

FIG. 1 is a sectional view of a knob type core sharpener of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA showing a state in which the core sharpener and the lid hole are fitted and held.

FIG. 3 is a plan view showing the positional relationship between the core insertion hole of the core scraper and the cross-shaped notch of the cover.

FIG. 4 is a perspective view of a projection of a hole portion of a lid and a cover.

FIG. 5 is a cross-sectional view of a simple pinching type core sharpener using a film case.

FIG. 6 is a plan view of a lid portion of a simple-type knob type core sharpener.

FIG. 7 is a perspective view when a hole-shaped bulge is attached to the lid portion of the simple-type knob type core sharpener

[Explanation of symbols]

1 Knife-type core remover holder 1'Knife-type core remover holder (simplified type) 2, 3 Body of closed container, lid 4 holes 8 Knife-type core remover 4'hole (simple type) 10 Thick core mechanical pencil 5 Protrusion 12 Film case 6 Cover 14 Hole-shaped bulge 7 Cross-shaped small cut 15 Hole-shaped paper type

Claims (1)

[Scope of utility model registration request] 1. A closed container body (2) with a lid and a lid (3) made of synthetic resin or the like are hermetically removable. A hole (4) having a protrusion (5) is provided in the central upper portion of the lid (3), and when the knob type core sharpener (8) is press-fitted into the hole (4), it is elastically deformed to be easily sealed and removable. It is adapted to be fitted and held in. Further, a "knob type core remover holder" in which a cover (6) made of an elastic material such as a rubber with a cross type small cut (7) is attached so as to close the core insertion hole (9) of the knob type core trimmer (8). "(1) structure. "Figure 1"