JPH0377690U

JPH0377690U -

Info

Publication number: JPH0377690U
Application number: JP13841789U
Authority: JP
Priority date: 1989-11-28
Filing date: 1989-11-28
Publication date: 1991-08-05
Anticipated expiration: 2004-11-28
Also published as: JPH077198Y2

Description

[Brief explanation of the drawing]

第１図は本考案シヤープペンシルの第１実施例
の構成を示す断面図、第２図ａ，ｂは第１実施例
における作用説明図、第３図は本考案シヤープペ
ンシルの第２実施例の構成を示す断面図、第４図
は第１図においてジヤンクシヨンとキー付き調整
ネジ部を別体として実施した場合の要部の断面図
、第５図は第３図においてジヤンクシヨンと受部
付き調整ネジ部を別体として実施した場合の要部
の断面図、第６図ａ，ｂはそれぞれ第３実施例の
構成を示す断面図、第７図ａ，ｂは第３実施例に
おける作用説明用断面図、第８図は第６図ａ示の
第３実施例における別の動作状態の説明用断面図
である。１……外筒、２……芯ケース、３……チヤツク
、４……チヤツクリング、５……ジヤンクシヨン
、５ａ……スリーブ、６……チヤツク締付け弾性
体（バネ）、７……先具、８……段部、９……調
整尾冠、９ａ……スリーブ、１０……キー、１１
……キー溝、１２……受部、１３……弾性体（バ
ネ）。 Figure 1 is a cross-sectional view showing the structure of the first embodiment of the sharpening pencil of the present invention, Figures 2a and b are explanatory diagrams of the operation of the first embodiment, and Figure 3 is the second embodiment of the sharpening pencil of the present invention. 4 is a cross-sectional view of the main parts when the juncture and the adjustment screw with a key are implemented as separate parts in FIG. 1, and FIG. 6a and b are sectional views showing the configuration of the third embodiment, and FIGS. 7a and b are sectional views for explaining the operation of the third embodiment. 8 are sectional views for explaining another operating state of the third embodiment shown in FIG. 6a. DESCRIPTION OF SYMBOLS 1... Outer tube, 2... Core case, 3... Chack, 4... Chuck ring, 5... Junction, 5a... Sleeve, 6... Chuck tightening elastic body (spring), 7... Tip tool, 8 ...Stepped portion, 9...Adjustment tail crown, 9a...Sleeve, 10...Key, 11
...Keyway, 12...Receptacle, 13...Elastic body (spring).

Claims

[Claims for Utility Model Registration] (1) A chuck 3 is connected to a core case 2 housed in an outer cylinder 1, and a chuck ring 4 is attached to this chuck 3.
A chuck tightening elastic body 6 is inserted between the juncture 5 that contacts the chuck ring 4 and the core case 2, and a stepped portion 8 on which the chuck ring 4 is locked is inserted into the tip 7 of the outer cylinder 1. Provided, outer cylinder 1
A sharpening pencil with a variable centering mechanism, in which a juncture 5 is connected to be locked in the rotational direction and movable in the axial direction, and an adjustment crown 9 is provided to move the juncture 5 in the axial direction. (2) The sharp pencil with a variable centering mechanism according to claim 1, wherein the outer cylinder 1 and the junction 5 are movable back and forth by a key 10 and a keyway 11, but are not allowed to rotate. (3) A sharpening pencil with a variable centering mechanism according to claim 1, wherein a key groove 11 is provided in the juncture 5, and a key 10 passing through the outer cylinder 1 is fitted into the key groove 11. (4) The sharp pencil with a variable centering mechanism according to claim 1, wherein the outer cylinder 1 and the juncture 5 are connected by a polygonal part that fits into each other. (5) The sharpening pencil with a variable centering mechanism according to any one of claims 1 to 4, wherein an elastic body 13 is provided between the outer cylinder 1 or the annular tail plug 17 and the junction 5. (6) A tail cap stopper 18 that comes into contact with the outer cylinder 1 or the annular tail plug 17 to prevent the adjustment tail cap 9 from moving rearward is attached to the outer periphery of the adjustment tail cap 9. A sharpening pencil with a variable centering mechanism according to any of the items above. (7) A tail cap stopper 18 is attached to the outer periphery of the adjustment tail cap 9, and a cushioning distance a is provided between the tail cap stopper 18 and the stepped portion 18a of the outer cylinder 1 or the annular tail plug 17. A sharpening pencil with a variable centering mechanism as described in item 5.