JPH039885U

JPH039885U -

Info

Publication number: JPH039885U
Application number: JP6910689U
Authority: JP
Priority date: 1989-06-15
Filing date: 1989-06-15
Publication date: 1991-01-30

Description

[Brief explanation of the drawing]

図面は本考案の実施例のサイドノツク式シヤー
プペンシルを示しており、第１図は口金を突出し
た状態の縦断面図、第２図は同上におけるＡ−Ａ
断面図、第３図は口金を収納した状態の透視断面
図である。又、第４図は芯繰り出し時の要部断面
図を示している。１…軸、２…先端孔、３…口金、４…内筒、５
…先端部、６…保持チヤツク、７…外窓孔、９…
三割チヤツク、１０…締め具、１１…芯繰り出し
ばね、１２…摺動子、１３…一側、１４…傾斜面
、１５…ガイド用長孔、１６…中継パイプ、１７
…芯ケース、１８，１９…段部、２０…カム斜面
、２１…端部、２２…段部、２３…内径部、２４
…内窓孔、２５…サイドノツク釦、２６…先端部
、２７…円筒カム、２８…段部、２９…先端面、
３０…カム斜面、３１…ツバ部、３２…クリツプ
、３３…消しゴム止め具、３４…消しゴム、３５
…カバー、３６…内径部、３７…溝、３８…リタ
ーンスプリング、３９…溝、４０…突起、４１…
テーパー部、４３…スリツト、４６…リブ、４７
…溝、４８…フランジ部、５０…円筒カム、５１
…内段、５２…突起、５３…嵌着部。 The drawings show a side-knock type mechanical pencil according to an embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view with the cap protruding, and FIG.
The cross-sectional view and FIG. 3 are perspective cross-sectional views showing a state in which the cap is housed. Moreover, FIG. 4 shows a sectional view of the main part when the core is fed out. 1... Shaft, 2... Tip hole, 3... Base, 4... Inner cylinder, 5
... Tip part, 6... Holding chuck, 7... Outer window hole, 9...
Three-part chuck, 10... Fastener, 11... Core feeding spring, 12... Slider, 13... One side, 14... Inclined surface, 15... Long hole for guide, 16... Relay pipe, 17
...Core case, 18, 19...Step part, 20...Cam slope, 21...End part, 22...Step part, 23...Inner diameter part, 24
...Inner window hole, 25...Side knob button, 26...Tip part, 27...Cylindrical cam, 28...Step part, 29...Tip surface,
30...Cam slope, 31...Brim portion, 32...Clip, 33...Eraser stopper, 34...Eraser, 35
...Cover, 36...Inner diameter part, 37...Groove, 38...Return spring, 39...Groove, 40...Protrusion, 41...
Tapered part, 43...slit, 46...rib, 47
...Groove, 48...Flange part, 50...Cylindrical cam, 51
...Inner stage, 52...Protrusion, 53...Fitting part.

Claims

[Scope of utility model registration request]

A return spring 8 is installed in the shaft 1 between the flange portion 48 of the inner cylinder 4 having the base 3 at the tip and the shaft 1.
A cam slope 20 is attached to the rear end of a cylindrical cam 50, which is integrally disposed in the rotational direction with respect to the shaft 1 and movable in the axial direction, and is integrally provided with the inner cylinder 4 only in the rotational direction.
and a return spring 38 is biased between the flange portion 48 and the distal end surface of the cylindrical cam 50 to provide a cam slope 30 on the front surface that faces and contacts the cam slope 20. 27 is located inside the shaft 1, and a cover 35 is provided to protrude from the rear end of the shaft 1 so as to be rotatable with respect to the shaft 1, and the cylindrical cam 27 and the cover 35 are integrally provided in the rotational direction. When the tip of the cam slope 30 is positioned at the rear end of the cam slope 20 by rotating the cover 35 relative to the shaft 1 and sliding the cam slopes together, the base 3 protrudes from the tip of the shaft 1, and the cam slope 20 is rotated. When the bottom of the cam slope 30 is located at the end, the base 3 is aligned with the shaft 1.
An outer window hole 7 is provided near the gripping fingertip of the shaft 1, and an inner window hole 24 is provided in a portion of the inner cylinder 4 corresponding to the outer window hole 7, and the inner cylinder 4 A core case 17, a relay pipe 16, and a 30-part chuck 9 are housed in one body, and a fastener 10 is installed outside the 30-part chuck 9 protruding from the inside of the inner cylinder 4 and inside the cap 3. provided, the inner cylinder 4
A slider 12 that moves the 30% chuck 9 in the distal direction and returns to its original state with a core feed-out spring 11 is provided inside the outer window hole 7, and an upper end inclined surface 1 of the slider 12 is provided inside the outer window hole 7.
This side-knock type sharp pencil is characterized in that it is provided with a side-knock button 25 that can push the chuck 4 downward, so that the 30-part chuck 9 can be moved toward the tip.