JPH0359895U

JPH0359895U -

Info

Publication number: JPH0359895U
Application number: JP12196889U
Authority: JP
Priority date: 1989-10-18
Filing date: 1989-10-18
Publication date: 1991-06-12
Also published as: JPH0346950Y2

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′……挾み板、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'... pinching 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]

Lower half legs 30, 32, 3 are attached to the lower ends of upper half legs 7, 7'.
In the drafting compass, the upper end of the upper half leg 7, 7' has a forked part 23 formed by making a deep slit 22 at the lower end of the lower end of the upper half leg 7, 7', Front and rear side plate parts 24, 24' of the section 23, recessed bearings 25, 25' and protruding connecting shafts 26, 26' provided on the outer and inner surfaces near the lower end, and the front and rear side plate parts. Concave bearings 23, 2 on the outer surfaces of 22, 22'
slopes 27, 27' formed on a circular line centering on point 3', and an insertion piece 35 for the forked portion 23 protruding from the upper end of the lower half leg 30, 32, 34; A deep notch 36 is formed at the upper end of the insertion piece 35, and a connecting shaft 26 is formed in the middle of both incisal edges of the insertion piece 35 when the bifurcated portion 23 of the insertion piece 35 is inserted into the slit 22.
, 26', and cut-out fitting bearings 37, 37' to bendably connect the lower half legs 30, 32, 34 to the lower ends of the upper half legs 7, 7', and side edges. A pair of sandwich plates 40, 40' connected by a straddling part 39, and a lever 4 for maintaining the connected state bored in the straddling part 39.
1 and the sandwiching plate 4.
0, 40' is provided in the center of the inner surface of the forked portion 23 in the form of a protrusion that fits into the concave bearings 25, 25' when the connection state maintaining member 42 is attached to the outside of the forked portion 23. When the coupling state maintaining lever 41 is raised in a direction perpendicular to the upper half legs 7, 7' with the coupling state maintaining member 42 attached to the outside of the shafts 43, 43' and the forked portion 23, an inclined surface is formed. 27, 27'
The insertion piece 35 is removed from the slit 22 and the lower half leg 30 is removed from the upper half leg 7, 7'.
, 32, 34 are allowed to be bent, and when the plates are tilted in parallel directions, they are located at a high position, making removal and bending impossible. A drafting compass leg characterized by having projections 44, 44'.