JPH0280483U

JPH0280483U -

Info

Publication number: JPH0280483U
Application number: JP16033288U
Authority: JP
Priority date: 1988-12-12
Filing date: 1988-12-12
Publication date: 1990-06-21

Description

[Brief explanation of drawings]

第１図Ａはこの考案の一実施例を適用したシヤ
ープペンシルの縦断面図、第１図Ｂは同要部縦断
面図、第１図Ｃはリードチヤツクの開放時の同要
部縦断面図、第２図は先具の平面図、第３図は第
２図のＡ―Ａ線断面図、第４図は第２図の背面図
、第５図は先具の摺動溝の説明斜視図、第６図は
スライダーの平面図、第７図は第６図のＢ―Ｂ線
断面図、第８図は第６図の背面図、第９図はスリ
ーブの平面図、第１０図は第９図のＣ―Ｃ線断面
図、第１１図は第９図の背面図、第１２図Ａは胴
リングの正面図、第１２図ＢはＤ―Ｄ線断面図、
第１３図Ａは突き出しバーの平面図、第１３図Ｂ
はＥ―Ｅ線断面図、第１４図は各リードチヤツク
部材の縦断面図、第１５図は同各リードチヤツク
部材の平面図、第１６図は同側面図、第１７図は
リードチヤツクの側面図、第１８図はリードチヤ
ツクのボール保持部の斜視図、第１９図は第１７
図のＦ―Ｆ線断面図、第２０図は第１７図のＧ―
Ｇ線断面図、第２１図〜第２３図はリードチヤツ
ク部材の実施例の底面図、第２４図、第２５図は
他の実施例のリードチヤツク頭部の縦断面図、第
２６図〜第３０図は芯送出動作、ロツク動作の説
明図を示す。１は外筒、２は先具、３はスライダー、４はス
リーブ、５は芯送出機構、５１はリードチヤツク
、５２はボール保持部、５３Ａはすべり接触部、
５３Ｂはボール、５５は係止段部、５５ａはスプ
リング係止突部、５５ｂはストツパ当接突部、５
６は締付用の弾性体、６はストツパ、９は胴リン
グ、１０は突き出しバー、１０７は開放傾斜部、
１１，１２は弾性体、Ｓは芯。 FIG. 1A is a longitudinal sectional view of a sharpening pencil to which an embodiment of this invention is applied, FIG. 1B is a longitudinal sectional view of the same essential part, and FIG. Fig. 2 is a plan view of the tip, Fig. 3 is a sectional view taken along the line A--A in Fig. 2, Fig. 4 is a rear view of Fig. 2, and Fig. 5 is an explanatory perspective view of the sliding groove of the tip. , FIG. 6 is a plan view of the slider, FIG. 7 is a sectional view taken along the line B-B in FIG. 6, FIG. 8 is a rear view of FIG. 6, FIG. 9 is a plan view of the sleeve, and FIG. 11 is a rear view of FIG. 9, FIG. 12A is a front view of the trunk ring, FIG. 12B is a sectional view taken along line D-D,
Figure 13A is a plan view of the ejector bar, Figure 13B
14 is a longitudinal sectional view of each lead chuck member, FIG. 15 is a plan view of each lead chuck member, FIG. 16 is a side view of the same, and FIG. 17 is a side view of the lead chuck. Figure 18 is a perspective view of the ball holding part of the lead chuck, and Figure 19 is a perspective view of the ball holding part of the lead chuck.
Figure 20 is a cross-sectional view taken along line FF in Figure 17.
21 to 23 are bottom views of an embodiment of the lead chuck member, and FIGS. 24 and 25 are longitudinal sectional views of the lead chuck head of other embodiments, and FIGS. 26 to 30. shows an explanatory diagram of the core feeding operation and locking operation. 1 is an outer cylinder, 2 is a tip, 3 is a slider, 4 is a sleeve, 5 is a lead delivery mechanism, 51 is a lead chuck, 52 is a ball holding part, 53A is a sliding contact part,
53B is a ball, 55 is a locking step, 55a is a spring locking protrusion, 55b is a stopper abutting protrusion, 5
6 is an elastic body for tightening, 6 is a stopper, 9 is a body ring, 10 is a protruding bar, 107 is an opening inclined part,
11 and 12 are elastic bodies, and S is a core.

Claims

[Scope of utility model registration request]

A chuck member 5 having a core insertion hole 57 in the shaft center
1a, 51b, a sliding contact portion 53A protruding from a predetermined position on the outer periphery of at least one chuck member 51a, 51b, and a ball holding portion 52 formed on the outer periphery of the remaining chuck members 51a, 51b. A lead chuck for a sharp pencil, comprising balls 53B arranged therein, and a lead support part 513 for holding a lead S, which is formed on the inner circumferential surface of the tip end side of the chuck members 51a and 51b.