JPH0362897U

JPH0362897U -

Info

Publication number: JPH0362897U
Application number: JP12308689U
Authority: JP
Priority date: 1989-10-20
Filing date: 1989-10-20
Publication date: 1991-06-19

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す全体の分解斜視
図、第２図は第１および第２下半脚をもつように
した全体の正面図、第３図は同じく中心部材個所
を切截した正面図、第４図は下半脚部分を切截し
た正面図、第５図は一部切截側面図、第６図は第
２図Ａ−Ａ線に沿う断面図、第７図は第２図Ｂ−
Ｂ線に沿う断面図、第８図はＣ−Ｃ線に沿う断面
図、第９図は第１および第３下半脚をもつように
した全体の正面図である。１，１′……前後両側円盤状部、２……連結部
、３……摘み用柱、４……溝、５……中心部材、
６，６′……欠歯歯車、７，７′……上半脚、８
，８′……中心軸、９……山型折曲部、１０……
板バネ、１１，１１′……両端部、１２……角孔
、１３……マウント、１４……切欠、１５，１５
′……軸受、１６……偏心カム、１７……支軸、
１８……開度保持用レバー、１９……近側面、２
０……遠側面、２２……スリツト、２３……二叉
状部、２４，２４′……前・後両側板部、２５，
２５′……凹孔状軸受、２６，２６′……連結軸
、２７，２７′……傾斜面、２９……中心針、３
０……第１下半脚、３１……鉛筆ホルダー、３２
……第２下半脚、３３……筆記芯ホルダー、３４
……第３下半脚、３５……挿込片、３６……切込
、３７，３７′……嵌合軸受、３９……跨ぎ部、
４０，４０′……挟み板、４１……連結状態保持
用レバー、４２，４２′……連結状態維持部材、
４３，４３′……嵌着軸、４４，４４′……滑り
突起、４６……深孔、４７……鞘体、４８……長
溝、４９……小突起、５１……Ｌ状折曲部、５２
……鉛筆、５３……挿通孔、５４，５４′……支
壁、５５……鉛筆挾着レバー、５６……ピン軸、
５７，５７′……バネ、５８……Ｕ字状切欠、５
９……ギザギザ、６０……当接面、６１……切縁
、６２……スリツト、６３，６３′……縦長凹溝
、６４……ビス孔、６５……ダイアル、６６……
締付ビス、６７……細孔、６８……筆記芯、７０
，７０′……抜止用ビス、７１，７１′……衝合
傾斜壁、７２，７２′……ガイド縁、７３，７３
′……係合壁、７４，７４′……係合孔、７５，
７５′……ワツシヤ、７６……滑り止め部。 Fig. 1 is an exploded perspective view of the entire structure showing an embodiment of the present invention, Fig. 2 is a front view of the entire structure with first and second lower legs, and Fig. 3 is a cutaway view of the central member. FIG. 4 is a front view with the lower half leg section cut away, FIG. 5 is a partially cutaway side view, FIG. 6 is a sectional view taken along line A-A in FIG. Figure 2 B-
FIG. 8 is a sectional view taken along line B, FIG. 8 is a sectional view taken along line C-C, and FIG. 9 is a front view of the entire device having first and third lower half legs. 1, 1'... Disk-shaped portion on both front and rear sides, 2... Connecting portion, 3... Knob post, 4... Groove, 5... Center member,
6, 6'... Intermittent gear, 7, 7'... Upper half leg, 8
, 8'... central axis, 9... chevron-shaped bent portion, 10...
Leaf spring, 11, 11'... Both ends, 12... Square hole, 13... Mount, 14... Notch, 15, 15
'... Bearing, 16... Eccentric cam, 17... Support shaft,
18...Lever for holding the opening degree, 19...Proximal side, 2
0... Far side surface, 22... Slit, 23... Bifurcated part, 24, 24'... Front and rear side plate parts, 25,
25'... Concave bearing, 26, 26'... Connection shaft, 27, 27'... Inclined surface, 29... Center needle, 3
0...First lower leg, 31...Pencil holder, 32
...Second lower half leg, 33...Writing lead holder, 34
... Third lower half leg, 35 ... Insertion piece, 36 ... Notch, 37, 37' ... Fitting bearing, 39 ... Straddling part,
40, 40'... Sandwich plate, 41... Lever for maintaining the connected state, 42, 42'... Member for maintaining the connected state,
43, 43'... Fitting shaft, 44, 44'... Sliding projection, 46... Deep hole, 47... Sheath body, 48... Long groove, 49... Small projection, 51... L-shaped bent part , 52
... Pencil, 53 ... Insertion hole, 54, 54' ... Support wall, 55 ... Pencil clamping lever, 56 ... Pin shaft,
57, 57'... Spring, 58... U-shaped notch, 5
9... Jagged, 60... Contact surface, 61... Incisal edge, 62... Slit, 63, 63'... Vertical groove, 64... Screw hole, 65... Dial, 66...
Tightening screw, 67... Pore, 68... Writing lead, 70
, 70'... Removal prevention screw, 71, 71'... Matching inclined wall, 72, 72'... Guide edge, 73, 73
'...Engagement wall, 74, 74'...Engagement hole, 75,
75'...washia, 76...slip part.

Claims

[Scope of utility model registration request]

A sheath body is attached around the attachment part of the central needle so that it can be slid by artificial force parallel to the direction of the concentric needle, and the outer surface of the central needle attachment part and the inner surface of the sheath body are mutually attached. A long groove and a small protrusion are provided so as to be slidably fitted to perform a function of preventing the sheath from coming off and a guiding function. A drafting corpus characterized in that the central needle protrudes outward from the tip of the sheath and when engaged with the upper end thereof, the tip of the center needle protrudes outward from the lower end of the sheath body.