JPH0210983U

JPH0210983U -

Info

Publication number: JPH0210983U
Application number: JP8870288U
Authority: JP
Priority date: 1988-07-04
Filing date: 1988-07-04
Publication date: 1990-01-24

Description

[Brief explanation of drawings]

第１図は典型的な実施例を示す要部破截側面図
、第２図は典型的な実施例を示す要部破截側面図
、第３図は典型的な実施例を示すカートリツジ分
解斜視図、第４図は典型的な実施例を示すカート
リツジ分解斜視図、第５図は典型的な実施例を示
すカートリツジ分解斜視図である。Ａ……シヤープペンシル本体（機構部）、Ｂ…
…シヤープペンシル本体（ケース）、Ｃ……シヤ
ープペンシル本体（キヤツプ）、Ｄ……スペアー
芯収納部分、Ｅ……芯もしくはスペアー芯、１，
１′……カートリツジ本体、２……コツク、３…
…蓋、４……消しゴム、５……軌道孔、６……テ
ーパー面、７……スペアー芯収納空間、８……穴
、９……凹部、１０……ハメアイ凸部、１１……
ハメアイ凹部、１２……軌道溝、１３……フイン
、１４……ハメアイ凹部、１５……ハメアイ凸部
、１６……ノツチ、１７……弾性フイン、１８…
…軌道溝、１９……凹部、２０……フイン収納空
間、２１……穴。 Fig. 1 is a cutaway side view of main parts showing a typical embodiment, Fig. 2 is a cutaway side view of main parts showing a typical embodiment, and Fig. 3 is an exploded perspective view of a cartridge showing a typical embodiment. 4 is an exploded perspective view of a cartridge showing a typical embodiment, and FIG. 5 is an exploded perspective view of a cartridge showing a typical embodiment. A...Sharp pencil body (mechanical part), B...
...Sharp pencil body (case), C...Sharp pencil main body (cap), D...Spare lead storage area, E...Lead or spare lead, 1,
1'...Cartridge body, 2...Kotoku, 3...
... Lid, 4 ... Eraser, 5 ... Raceway hole, 6 ... Tapered surface, 7 ... Spare lead storage space, 8 ... Hole, 9 ... Concave part, 10 ... Fitting eye convex part, 11 ...
Fitting eye concave portion, 12... Raceway groove, 13... Fin, 14... Fitting eye concave portion, 15... Fitting eye convex portion, 16... Notch, 17... Elastic fin, 18...
... Raceway groove, 19 ... Recess, 20 ... Fin storage space, 21 ... Hole.

Claims

[Claims for Utility Model Registration] 1. Spare lead storage part D of sharp pencil
It has a cylindrical shape with a smaller diameter than the inner diameter of the circle, and approximately in the center of the circle there is a raceway hole 5 that becomes the orbit of the spare core E. In the middle of the raceway hole 5, there is a fin 13 and a cottle of integral structure. The raceway hole 5 has a spare core storage space 7 through a tapered surface 6, and a hole 8 through which a fin 13 projects outward is formed on the cylindrical side surface into which the rod 2 is fitted. A cartridge for a sharp pencil, which has a concave portion 9 extending parallel to the raceway hole 5 and hollowing out a cylindrical shape. 2 Spare lead storage part D of the sharpening pencil
It has a cylindrical shape with a diameter smaller than the inner diameter of the circle, and approximately in the center of the circle there is a raceway hole 5 that becomes the orbit of the spare core E. In the middle of the raceway hole 5, there is an elastic fin 17 and an integrated structure. The notch 16 is fitted, and the raceway hole 5 is inserted through the tapered surface 6.
Shaped with spare core storage space 7, notch 1
Elastic fins 17 are attached to the cylindrical side surface into which 6 is fitted.
A sharp pencil cartridge having a shape having a hole 21 projecting to the outside. 3. The cartridge body 1 is roughly divided vertically into two parts, with a cylindrical shape having a diameter shorter than the inner diameter of the spare core storage part D, and there is a groove serving as the raceway hole 5 approximately in the center of the semicircle. In the middle of the groove, Kotoku 2
There is a circular recess into which the recess is fitted, and a circular fit-in recess 11 is located approximately in the center of the recess. ing. The cartridge body 1' has a circular fitting convex portion 10 approximately in the center of the circular concave into which the pot 2 is fitted.
It has the same structure and is symmetrical with the cartridge body 1 except that it protrudes. Kotoku 2 is roughly:
It has a spherical shape with arched protruding fins 13, and the raceway groove 12 is slightly parallel to the fins 13.
is cut into the raceway groove 12 and the fin 1.
3, a circular fit-in recess 15 is formed on the cut side, and a circular fit-in convex part 14 protrudes from the opposite side. A cartridge for a mechanical pencil according to claim 1, which is assembled by the above-mentioned structure. 4. The cartridge main body 1 is roughly divided vertically into two parts, with a cylindrical shape having a diameter shorter than the inner diameter of the spare core storage part D, and there is a groove serving as the raceway hole 5 approximately in the center of the semicircle. In the middle of that groove, there is a notch 1.
6 is fitted into a T-shaped recess, a portion of the T-shaped vertical recess 19 crosses the groove of the raceway hole 5, and further,
The groove of the raceway hole 5 is constituted by a cylindrical spare core storage space 7 with a tapered surface 6 interposed therebetween. The cartridge body 1' is symmetrical and has the same structure as the cartridge body 1. Notsuchi 16
is roughly T-shaped, with raceway grooves 18 bored in the vertical part of the T-shape, and elastic fins 17 shaped like hanging wings in the horizontal part of the T-shape. . A cartridge for a mechanical pencil according to claim 2, which is assembled by the above-mentioned structure. 5. Fit the screw 2 into the cartridge body, and drill the hole 21 that is integrated with the fitting recess 11.
2. The cartridge for a sharp pencil according to claim 1, wherein the lock 2 also has a deep raceway groove, eliminates a fitting recess, and is constituted by two fitting projections 15. 6 Shape pencil spare lead storage part D
6. The sharpening pencil according to claim 1, wherein the length is measured from the leading end of the sharpening pencil, and the length of the spare lead storage portion D is equal to or longer than the length of the spare lead E. 7 Shape pencil spare lead storage part D
The length is measured from the tip of the sharp pencil where the lead comes out, and is equal to or longer than the length of the spare lead E plus the length of the notch 16 that opens and closes the lead from the end of the cartridge body 1. The sharpening pencil according to claim 2 or 4, wherein the length of the storage portion D is. 8 A cylindrical shape with a diameter approximately the same as the inner diameter of the spare lead storage space 7, a cylindrical shape with a diameter less than the outer diameter of the spare lead storage space 7, and a cylindrical shape with a height of about half that of an eraser. A lid 3 having a shape consisting of a conical shape with a diameter less than the inner diameter of the lid 3, and a low cylindrical eraser 4 having a concave surface with a tapered surface at the bottom into which the conical projection can fit the projection are added. A cartridge for a mechanical pencil according to claim 1, 2, 3, 4 or 5.