JP3227144U - mechanical pencil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanical pencil capable of feeding out and scraping a core material with a lid removed from a core tank. SOLUTION: A cylindrical shaft body 2 which is held by hand when writing is provided. A core material holding portion that holds the core material so that it can be drawn out is attached to the tip of the shaft body 2. A core tank 3 is provided on the base end side of the core material holding portion and accommodated in the shaft body 2. A lid 4 attached to the base end of the lead tank 3 is provided. The core tank 3 is pushed in from the base end side of the shaft body 2 so that the core material is fed from the core material holding portion. A core sharpener is provided on the lid 4. The length of the lead tank 3 is set so as to project from the shaft body 2 to the base end side. [Selection diagram]

Description

The present invention relates to, for example, a mechanical pencil having a structure in which a thick core material for drawing is held so as to be able to be drawn out, and a core sharpener is provided on a lid thereof.

Generally, a mechanical pencil has a cylindrical shaft body that is held by hand when writing, a core material holding part that is attached to the tip of the shaft body and holds the core material so that it can be drawn out, and a base end side of the core material holding part. The structure is provided with a core tank that is installed in the shaft and accommodated in the shaft body, and a lid body that is attached to the base end of the core tank, and push the core tank with the lid body attached from the base end side of the shaft body. The core material is fed out from the core material holding portion by operation.

Further, in a mechanical pencil for drawing, for example, a core sharpener (shaving tool) for sharpening the tip of the thick core material may be mounted inside a lid (cap) (for example, Patent Document 1).

As shown in FIG. 6, in the mechanical pencil of Patent Document 1, the core tank 103 is shortened by the lengthening of the lid body 102 by mounting the core sharpener 101 inside, and the base end of the core tank 103 is It is set at a position recessed from the base end of the shaft body 104.

Fukui Sho 60-58390 (claim for utility model registration, Fig. 1)

By the way, in order to scrape the tip of the core material, it is necessary to pay out the core material from the core material holding portion. However, like the mechanical pencil of Patent Document 1, the position where the base end of the core tank is recessed from the base end of the shaft body is required. When set to, the core material cannot be pushed out by pushing the core tank with the lid removed.

In this case, in order to scrape the core material with the core sharpener attached to the lid body, it is necessary to mount the lid body on the core tank and feed the core material, and then remove the lid body from the core tank and scrape the core material. , It is not possible to scrape the core material while adjusting the operation amount of the core material.

An object of the present invention is to provide a mechanical pencil capable of feeding and scraping a core material with a lid removed from a core tank.

In order to achieve the above object, a mechanical pencil according to the present invention comprises a cylindrical shaft body that is held by hand when writing, and a core material holding portion that is attached to the tip of the shaft body and holds the core material so that the core material can be drawn out. And a core tank provided on the base end side of the core member holding portion and housed in the shaft body, and a lid body mounted on the base end of the core tank. The core tank is provided on the base end side of the shaft body. The core material is pushed out from the core material holding portion and the core material is provided in the lid body, and the core tank is set to have a length protruding from the shaft body to the base end side.

According to the above configuration, since the length of the core tank is set so as to project from the shaft body to the base end side, the core material can be pushed out by pushing the core tank while the lid is removed, and It is possible to scrape the core material without adjusting the lid body by using the core scraper for the lid body while adjusting the operation amount of the core material.

Further, the core sharpener may be housed in the bottom of the lid.

According to this configuration, the lid body can be prevented from projecting toward the base end side more than the core sharpener, and the lid body can be shortened, and the shaft body can be set while protruding the core tank from the shaft body. It is possible to reduce the amount of protrusion of the lid body from the base end of the.

As described above, according to the present invention, the lead tank of the mechanical pencil in which the core sharpener is provided on the lid is set to have a length protruding from the shaft. As a result, the core material can be pushed out by pushing the core tank while the lid is removed from the mechanical pencil, and the core material is removed using the core remover of the lid body while adjusting the operation amount of the core material. It is possible to omit attaching and detaching the lid to and from the lead tank when shaving.

A perspective view of a mechanical pencil according to the present invention. Perspective view of core remover Transverse view of lid AA sectional view of FIG. BB sectional view of FIG. Side view of conventional mechanical pencil

Hereinafter, an embodiment for carrying out a mechanical pencil according to the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 4, a mechanical pencil 1 is, for example, a writing tool having a structure in which a thick core material for drawing is held so as to be able to be drawn out, and a cylindrical shaft body 2 which is held by hand when writing, At the base end of the core tank 3, a core material holding portion mounted on the tip of the shaft body 2 for holding the core material, a core tank 3 provided on the base end side of the core material holding portion and accommodated in the shaft body, The lid body 4 to be mounted and the core scraper 5 housed in the bottom of the lid body 4 are provided, and the core tank 2 is set to a length projecting from the shaft body 3 toward the base end side. The core tank 2 from which the body 4 has been removed is pushed in from the base end side of the shaft body so that the core material can be fed out from the core material holding portion.

The shaft body 2 is the main body portion of the mechanical pencil 1 which is directly held by hand, and by holding the shaft body 2 by hand and pushing in the core tank 3 projecting to the base end side, the tip end of the shaft body 2 is pushed. The core material is fed out from the core material holding portion installed in the section.

The core tank 3 is a cylindrical body that accommodates the core material supplied to the core material holding portion, and is configured such that a portion projecting from the shaft body 3 toward the base end side is knocked and pushed in. At the base end of the core tank 3, the lid body 4 can be externally fitted and attached to the bottomed tubular lid body 4, and the pushing operation can be performed with the lid body 4 attached or detached.

As shown in FIG. 2, the core remover 5 has V-shaped notches 6 having an R at the bottom formed on both sides in the longitudinal direction of a rectangular metal plate, and the metal plate is folded in two and the notch 6 is cut. The structure is such that the tip side is opened in a V shape from the vicinity of the bottom.

As shown in FIGS. 3 to 5, the core sharpener 5 is inserted into the inside of the lid body 4, and each tip 8 of the four outer measuring sides 7 is brought into point contact with the inner surface of the lid body 4, and further, By pushing the creases of the core scraper 5 to the bottom of the lid 4, the folds are held on the bottom of the lid 4.

In order to scrape the core material using the core scraper 5, first, with the lid 4 removed from the core tank 3, the core end of the core tank 3 is knocked and the core material is fed out. By inserting the core material into the lid body 4 while adjusting the operation amount of the core material, the tip of the core material is brought into contact with the V-shaped notch 6 of the core scraper 5 at the bottom of the lid body 4. The four notches 6 are positioned so that the four inner sides 9 thereof are radially spread, and the shaft 2 or the lid 4 is rotated to cut the tip of the thick core material into a sharp shape along the inner side 9. You can

1 Mechanical pencil 2 Shaft body 3 Core tank 4 Lid body 5 Core scraper 6 Notch 7 External measuring side 8 Tip 9 Inner side

Claims (2)

A cylindrical shaft body that is held by hand when writing, a core material holding part that is attached to the tip of the shaft body and holds the core material so that it can be drawn out, and a core end part A core tank accommodated in the shaft body and a lid body attached to the base end of the core tank are provided, and the core tank is pushed in from the base end side of the shaft body to remove the core material from the core material holding portion. It's a mechanical pencil that goes out,
A mechanical pencil, wherein the lid body is provided with a core sharpener, and the core tank is set to have a length protruding from a shaft body toward a base end side. The mechanical pencil according to claim 1, wherein the core sharpener is housed in a bottom portion of the lid body.

Images