JPH0336035U

JPH0336035U -

Info

Publication number: JPH0336035U
Application number: JP9652589U
Authority: JP
Priority date: 1989-08-18
Filing date: 1989-08-18
Publication date: 1991-04-09
Anticipated expiration: 2004-08-18
Also published as: JPH0715880Y2

Description

[Brief explanation of drawings]

図面は本考案の実施例に関するもので、第１図
は本案装置を実施したマンホールの斜視図、第２
図は断面図、第３図、第４図は第１実施例の平面
説明図、第５図、第６図は第１実施例の断面図、
第７図、第８図は同上の作用を示す部分平面図、
第９図、第１０図は前２図に対応する断面図、第
１１図、第１２図は第２実施例の平面説明図、第
１３図、第１４図は前２図に対応する第２実施例
の断面図、第１５図はヒンジ部金具受け口の平面
説明図、第１６図は同上の断面図、第１７図は第
１５図−線断面図である。１…蓋体、２…支軸、３…フツク、４…係合部
材、５…枠体、６…係合縁、７…解錠手段。 The drawings relate to embodiments of the present invention; Fig. 1 is a perspective view of a manhole in which the proposed device is implemented;
The figure is a sectional view, FIGS. 3 and 4 are plan explanatory views of the first embodiment, and FIGS. 5 and 6 are sectional views of the first embodiment.
FIG. 7 and FIG. 8 are partial plan views showing the same effect as above;
Figures 9 and 10 are cross-sectional views corresponding to the previous two figures, Figures 11 and 12 are plan explanatory views of the second embodiment, and Figures 13 and 14 are cross-sectional views corresponding to the previous two figures. FIG. 15 is a plan explanatory view of the metal fitting receptacle of the hinge portion, FIG. 16 is a sectional view of the same, and FIG. 17 is a sectional view taken along the line shown in FIG. 15. DESCRIPTION OF SYMBOLS 1... Lid body, 2... Support shaft, 3... Hook, 4... Engagement member, 5... Frame body, 6... Engagement edge, 7... Unlocking means.

Claims

[Claims for Utility Model Registration] (1) A locking device that is suspended from the lower edge of the lid 1 by a support shaft 2 so as to be able to swing at least inwardly, and has an outward hook 3 at its swinging end. The mating member 4 and the lid body 1
an engaging edge 6 provided inside the opening 15 of the frame body 5 that receives the hook 3, and an engaging member 4 that is moved by the rotation of the lid body 1 from the engaged state. and an unlocking means 7 for releasing the hook 3 from the engaging edge 6 to put it in the unlocked state. (2) Lid body 1 to lock the lid opening tool T when unlocking
2. A locking device for an underground structure according to claim 1, wherein the locking portion 18 provided in the locking portion 18 has a bag-like shape toward the outside, and the lid body 1 is configured to seal the opening 15. (3) The lock for underground structures according to claim 1, wherein the unlocking means 7 is a cam protrusion 8 provided on the lower side of the engagement edge 6 so as to protrude to the same extent or more than the engagement edge. Device. (4) The lock device for underground structures according to claim 1, wherein the unlocking means 7 is a notch 9 formed on the side of the engagement edge 6 through which the hook 3 can pass. (5) The locking device for an underground structure according to claim 1, wherein one or both of the lid body 1 and the frame body 5 are provided with a mark 10 indicating an engaged position and an unlocked position. (6) The lid body 1 is attached to the frame body 5 by a hinge mechanism 11 so that it can swing left and right, and the mechanism 11
2. The locking device for underground structures according to claim 1, wherein the engaging member 4 is suspended on a substantially opposite side of the locking device. (7) The hinge mechanism 11 includes a hinge metal fitting 12 pivotally supported on the lower surface of the lid body, and a retaining ring 13 formed inside the opening of the frame body 5 to receive the hinge metal fitting 12, and the retaining ring 13 is connected to the hinge metal fitting. 2. A locking device for an underground structure according to claim 1, further comprising a wide metal fitting receptacle (14) that allows movement of the locking device (12) in the circumferential direction.