JPH0190849U

JPH0190849U -

Info

Publication number: JPH0190849U
Application number: JP18203587U
Authority: JP
Priority date: 1987-11-30
Filing date: 1987-11-30
Publication date: 1989-06-14
Anticipated expiration: 2002-11-30
Also published as: JPH0538137Y2

Description

[Brief explanation of the drawing]

図面は本考案の一実施例に係るマンホール蓋の
施錠装置を示し、第１図は蓋施錠状態の要部縦断
面図であり、第２図は同施錠状態の要部水平断面
図であり、第３図は同施錠状態の底面図である。
第４図は該施錠装置のロータとスライド板の係合
関係を示す拡大平面図であり、第５図はロータ部
分の要部拡大縦断面図であり、第６図は該施錠装
置に用いるキーハンドルの正面図、第７図は該キ
ーハンドルの底面図であり、第８図は該キーハン
ドル挿入時の要部拡大縦断面図である。１…受枠体、２…蓋、３…主基板、４…副基板
、５…水平枢軸、６…フツク体、７…枢軸、８…
連動リンク板、９…連動長孔、１０…枢軸、１１
…下面突出部、１２…プロテクター板、１３…窓
部、１４…ロータ、１５…軸孔、１６…軸受部、
１７…ボス部、１８…ビス、１９…鍵孔、２０…
受孔、２１…受溝、２２…ストツパー、２３…ガ
イド棒、２４…付勢用バネ、２５…案内孔、２６
…内面突部、２７…スライド板、２８…突条部、
２９…開口部、３０，３１…固着用ボルト、３２
…軸受板部、３３…フツク体の下端部、３４…張
出板部、３５…内向き突出部、３６…カム突起、
３７…停止突起、３８…凹部、３９…キーハンド
ル、４０…割溝、４１…摘み、４２…爪板、４３
…枢軸、４４…押ピン、４５…カム斜面、４６…
開口部内側面。 The drawings show a manhole cover locking device according to an embodiment of the present invention, FIG. 1 is a longitudinal sectional view of the main part in the lid locked state, and FIG. 2 is a horizontal sectional view of the main part in the same locked state, FIG. 3 is a bottom view of the same locked state.
FIG. 4 is an enlarged plan view showing the engagement relationship between the rotor and the slide plate of the locking device, FIG. 5 is an enlarged vertical sectional view of the main part of the rotor, and FIG. 6 is a key used in the locking device. FIG. 7 is a front view of the handle, FIG. 7 is a bottom view of the key handle, and FIG. 8 is an enlarged vertical sectional view of the main part when the key handle is inserted. DESCRIPTION OF SYMBOLS 1... Receiving frame body, 2... Lid, 3... Main board, 4... Sub board, 5... Horizontal pivot, 6... Hook body, 7... Pivot, 8...
Interlocking link plate, 9... Interlocking elongated hole, 10... Pivot, 11
... lower surface protrusion, 12 ... protector plate, 13 ... window, 14 ... rotor, 15 ... shaft hole, 16 ... bearing part,
17... Boss part, 18... Screw, 19... Keyhole, 20...
Receiving hole, 21... Receiving groove, 22... Stopper, 23... Guide rod, 24... Biasing spring, 25... Guide hole, 26
...Inner surface projection, 27...Slide plate, 28...Protrusion,
29...Opening, 30, 31...Fixing bolt, 32
...bearing plate part, 33...lower end of hook body, 34...projecting plate part, 35...inward protrusion, 36...cam protrusion,
37... Stop projection, 38... Recess, 39... Key handle, 40... Division groove, 41... Knob, 42... Claw plate, 43
...Pivot, 44...Push pin, 45...Cam slope, 46...
Inside surface of the opening.

Claims

[Scope of utility model registration request]

a hook body 6 that is pivotally mounted on the lower surface of the peripheral edge of the lid 2 by a horizontal pivot 5 and that engages and disengages from the inner surface protrusion 26 of the receiving frame body 1;
A rotor 14 is rotatably mounted on the lower surface of the lid 2 and has a cam protrusion 36 protruding from its circumferential surface; a rotor 14 is mounted on the lower surface of the lid 2 and is biased to slide in the direction of the hook body 6 by a spring 24; A slide plate 27 has a cam slope 45 pushed by the cam protrusion 36; one end is pivotally connected to the lower protrusion 11 of the slide plate 27 by a pivot 10 passing through the floating elongated hole 9; It consists of an interlocking link plate 8 pivotally attached to the lower end 33 of the hook body 6 by a pivot 7; and a key handle 39 inserted into the rotor 14 through a keyhole 19 of the lid 2 to rotationally drive the rotor 14. , the hook body 6
A locking device for a manhole cover in which a recess 38 is provided at the end of the cam slope 45, with which the tip 36a of the cam protrusion 36 engages when the cam protrusion 36 separates from the inner surface protrusion 26.