EP0305245A1 - Fastener for a cover on a frame - Google Patents

Fastener for a cover on a frame Download PDF

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Publication number
EP0305245A1
EP0305245A1 EP88401963A EP88401963A EP0305245A1 EP 0305245 A1 EP0305245 A1 EP 0305245A1 EP 88401963 A EP88401963 A EP 88401963A EP 88401963 A EP88401963 A EP 88401963A EP 0305245 A1 EP0305245 A1 EP 0305245A1
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EP
European Patent Office
Prior art keywords
cam
screw
pad
frame
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88401963A
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German (de)
French (fr)
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EP0305245B1 (en
Inventor
Christian René Georges Fumalle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norinco SA
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Norinco SA
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Publication date
Application filed by Norinco SA filed Critical Norinco SA
Priority to AT88401963T priority Critical patent/ATE57972T1/en
Publication of EP0305245A1 publication Critical patent/EP0305245A1/en
Application granted granted Critical
Publication of EP0305245B1 publication Critical patent/EP0305245B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices

Definitions

  • the present invention essentially relates to a device for locking a cover or pad on a chassis or frame constituting for example the surround of a manhole in a roadway or a sidewalk.
  • the present invention aims to remedy these drawbacks by proposing a locking device of a particularly simple and judicious design and making it possible to obtain a secure and reliable connection, despite possible variations in dimension, of these two elements. .
  • the subject of the invention is a device for locking a cover or pad on a chassis or frame constituting for example the surround of a manhole in a roadway, characterized by a cam mounted freely pivoting or tilting on the underside of the pad and one end of which, or first end, can be actuated by a member integral with the pad to allow the other end, or second end of the cam, to engage in or under the frame.
  • a spring is interposed between the aforementioned member and the first end of the cam.
  • the aforementioned member is constituted by a screw having a low-cut end in which the spring is fitted.
  • the cam has substantially the shape of a tongue, the opposite longitudinal edges of which have a swiveling axis in a yoke formed on the underside of the pad.
  • the second end of the cam or tongue comprises an enlarged part and is constantly urged downwards under the effect of gravity, while the first end of the cam, constantly urged upwards, comprises a curved part followed by a flange capable of coming into abutment on the spring.
  • the cam carries a boss allowing the centering of the spring.
  • the barrel of the aforementioned member or screw is provided with a transverse pin which limits the unscrewing stroke of the screw and prevents the latter from inadvertently leaving the buffer.
  • a locking device is particularly intended to lock a pad or cover 1 on a frame or frame 2 surrounding for example a manhole in a roadway or a sidewalk, the pad 1 being provided with a member 3 capable of acting on a cam 4 mounted freely tilting under the pad 1 and being able to engage in or on the underside 2 a of the frame 2 to achieve locking.
  • the member 3 is constituted by a screw 5 screwed into the buffer 1 and comprising a cutaway head 6 7 allowing the operation of said screw.
  • a washer 8 housed in a bore 9 formed in the pad 1 and capable of receive the screw head 6.
  • the end of the screw 5 is turned, as seen in 10, to receive a spring 11 bearing on the tilting cam 4.
  • the cam 4 has substantially the shape of a tongue whose opposite longitudinal edges 12 each have an axis 13 journalled in a yoke or the like 14 clearly visible in Figures 1 to 3 and formed on the underside of the stamp or cover 1.
  • the tongue-shaped cam 4 has a first end 15 formed from a part16 curved with respect to the plane of the tongue and followed by a flange 17 substantially parallel to the plane of the tongue.
  • the flange 17 of the tilting cam 4 abuts against the spring 11, but this will be described in detail later on with regard to operation.
  • the cam 4 has a second end 18 formed by an enlarged part 19 clearly visible in FIG. 4, this second end 18 being constantly urged downwards under the effect of gravity, so that the first end 15 of the cam 4 is constantly stressed upwards, the tilting of said cam being limited by the abutment of the flange 17 on the spring 11.
  • a boss has been shown at 20 projecting from the cam or tongue 14 and situated between the axes 13 and the part curved 16. This boss ensures the centering of the spring 11 when the pad 1 is locked on the frame 2, as is clearly visible in FIG. 3.
  • a pin or the like 21 passing through from one side to the shank of the screw 5 allows to limit the travel of the screw in the unscrewing, since said pin may abut against the underside 1a of the pad 1.
  • the yokes 14 in which the cam or tongue 4 journals are molded with the pad or cover 1.
  • the cam 4 it is obviously obtained in one piece by molding. It will be noted here that the axes 13 of the cam rotate in a flange 14 a in an arc provided in each yoke 14.
  • the screw 5 is screwed using a suitable tool, which will cause the cam 4 to tilt in the clockwise direction. a watch.
  • the spring 11 is particularly advantageous in that it will make it possible to make up for the possible height differences between the underside 2a of the frame 2 and the underside 1a of the buffer 1. It will therefore always be certain to obtain a positive and reliable locking. It should be noted here that if it is desired to remove the buffer 1, it will remain locked on the frame, since the boss 20 will then come to bear on the low-cut part 10 of the end of the screw 5.
  • a device for locking a pad or cover has been produced on a frame which is of a particularly simple mechanical design, inexpensive and of reliable operation both when locking and unlocking, it being understood that 'Such a device advantageously allows to see from the outside if the pad is locked or not. It will also be added here that the tampon must include at least two devices in accordance with this invention.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Vibration Dampers (AREA)
  • Casings For Electric Apparatus (AREA)
  • Table Devices Or Equipment (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Closures For Containers (AREA)

Abstract

1. Device for locking a cover or plug (1) on a cassing or frame (2) constituting for instance the setting of a manhole in a roadway and of the type comprising a cam (4) pivotally or tiltingly mounted on the underside of the plug (1) and operable by a member (3) such as a screw (5) to allow the said cam to move into or below the frame (2), characterized in that the cam (4) is mounted in freely pivoting relationship on the underside of the plug (1) and the member or screw (5), fastened to the plug (1), acts upon one of the ends or first end (15) of the cam (4) through the medium of a spring (11) interposed between this first end and the member or screw (5).

Description

La présente invention a essentiellement pour objet un dispositif de verrouillage d'un couvercle ou tampon sur un châssis ou cadre constituant par exemple l'entourage d'un trou d'homme dans une chaussée ou un trottoir.The present invention essentially relates to a device for locking a cover or pad on a chassis or frame constituting for example the surround of a manhole in a roadway or a sidewalk.

On a déjà proposé des moyens pour solidariser un cadre d'un couvercle, mais ces moyens n'assuraient pas toujours un bon verrouillage du tampon sur le cadre en raison notamment des différentes hauteurs relatives possibles du cadre et du tampon. En bref, les moyens proposés jusqu'à maintenant ne permettaient pas un verrouillage sûr et fiable du couvercle ou tampon sur le cadre quelles que soient les dispersions de cote de ces deux éléments.Means have already been proposed for securing a frame to a cover, but these means do not always ensure good locking of the pad on the frame, in particular because of the different possible relative heights of the frame and of the pad. In short, the means proposed until now did not allow a secure and reliable locking of the cover or pad on the frame whatever the dimension dispersions of these two elements.

Aussi, la présente invention a pour but de remédier à ces inconvénients en proposant un dispositif de verrouillage d'une conception particulièrement simple et judicieuse et permettant d'obtenir une solidarisation sûre et fiable, en dépit des variations de cote possible, de ces deux éléments.Also, the present invention aims to remedy these drawbacks by proposing a locking device of a particularly simple and judicious design and making it possible to obtain a secure and reliable connection, despite possible variations in dimension, of these two elements. .

A cet effet, l'invention a pour objet un dispositif de verrouillage d'un couvercle ou tampon sur un châssis ou cadre constituant par exemple l'entourage d'un trou d'homme dans une chaussée, caractérisé par une came montée librement pivotante ou basculante sur le dessous du tampon et dont l'une des extrémités, ou première extrémité, est actionnable par un organe solidaire du tampon pour permettre à l'autre extrémité, ou deuxième extrémité de la came de s'engager dans ou sous le cadre.To this end, the subject of the invention is a device for locking a cover or pad on a chassis or frame constituting for example the surround of a manhole in a roadway, characterized by a cam mounted freely pivoting or tilting on the underside of the pad and one end of which, or first end, can be actuated by a member integral with the pad to allow the other end, or second end of the cam, to engage in or under the frame.

Suivant une autre caractéristique de l'invention, un ressort est interposé entre l'organe précité et la première extrémité de la came.According to another characteristic of the invention, a spring is interposed between the aforementioned member and the first end of the cam.

On précisera encore ici que l'organe précité est constitué par une vis possédant une extrémité décolletée dans laquelle s'emmanche le ressort.It will also be specified here that the aforementioned member is constituted by a screw having a low-cut end in which the spring is fitted.

Selon encore une autre caractéristique de l'invention, la came présente sensiblement la forme d'une languette dont les bords longitudinaux opposés comportent un axe tourillonnant dans une chape formée sur le dessous du tampon.According to yet another characteristic of the invention, the cam has substantially the shape of a tongue, the opposite longitudinal edges of which have a swiveling axis in a yoke formed on the underside of the pad.

Suivant un mode de réalisation préféré, la deuxième extrémité de la came ou languette comporte une partie élargie et est constamment sollicitée vers le bas sous l'effet de la gravité, tandis que la première extrémité de la came, constamment sollicitée vers le haut, comporte une partie recourbée suivie par un rebord susceptible de venir en butée sur le ressort.According to a preferred embodiment, the second end of the cam or tongue comprises an enlarged part and is constantly urged downwards under the effect of gravity, while the first end of the cam, constantly urged upwards, comprises a curved part followed by a flange capable of coming into abutment on the spring.

On notera encore ici qu'entre les axes précités et la partie recourbée précitée, la came porte un bossage permettant le centrage du ressort.It will also be noted here that between the aforementioned axes and the aforementioned curved part, the cam carries a boss allowing the centering of the spring.

Suivant encore une autre caractéristique de l'invention, le fût de l'organe ou de la vis précitée est muni d'une goupille transversale qui limite la course de dévissage de la vis et empêche celle-ci de sortir intempestivement du tampon.According to yet another characteristic of the invention, the barrel of the aforementioned member or screw is provided with a transverse pin which limits the unscrewing stroke of the screw and prevents the latter from inadvertently leaving the buffer.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple, et dans lesquels :

  • La figure 1 est une vue en coupe verticale et partielle de l'assemblage d'un cadre et d'un tampon muni des moyens de verrouillage selon cette invention, l'assemblage étant montré en position non verrouillée ;
  • La figure 2 est une vue similaire à la figure 1, mais montrant l'ensemble cadre-tampon en cours de verrouillage.
  • La figure 3 est une vue similaire aux figures1 et 2, mais montrant l'ensemble précité en position verrouillée ; et
  • La figure 4 est une vue en plan et de dessus de la came pivotante permettant le verrouillage.
However, other advantages and characteristics of the invention will appear more clearly in the detailed description which follows and which refers to the appended drawings, given only by way of example, and in which:
  • Figure 1 is a vertical and partial sectional view of the assembly of a frame and a pad provided with the locking means according to this invention, the assembly being shown in the unlocked position;
  • Figure 2 is a view similar to Figure 1, but showing the frame-buffer assembly being locked.
  • Figure 3 is a view similar to Figures 1 and 2, but showing the above assembly in the locked position; and
  • Figure 4 is a top plan view of the pivoting cam for locking.

Suivant un exemple de réalisation, et en se reportant plus particulièrement aux figures 1 à 3, on voit qu'un dispositif de verrouillage selon cette invention est tout particulièrement destiné à verrouiller un tampon ou couvercle 1 sur un châssis ou cadre 2 entourant par exemple un trou d'homme dans une chaussée ou un trottoir, le tampon 1 étant muni d'un organe 3 susceptible d'agir sur une came 4 montée librement basculante sous le tampon 1 et pouvant s'engager dans ou sur le dessous 2a du cadre 2 pour réaliser le verrouillage.According to an exemplary embodiment, and with particular reference to Figures 1 to 3, we see that a locking device according to this invention is particularly intended to lock a pad or cover 1 on a frame or frame 2 surrounding for example a manhole in a roadway or a sidewalk, the pad 1 being provided with a member 3 capable of acting on a cam 4 mounted freely tilting under the pad 1 and being able to engage in or on the underside 2 a of the frame 2 to achieve locking.

Plus précisément, l'organe 3 est constitué par une vis 5 vissée dans le tampon 1 et comportant une tête 6 à pan coupé 7 permettant la manoeuvre de ladite vis. Autour de cette vis est prévue une rondelle 8 logée dans un alésage 9 ménagé dans le tampon 1 et pouvant recevoir la tête de vis 6.More specifically, the member 3 is constituted by a screw 5 screwed into the buffer 1 and comprising a cutaway head 6 7 allowing the operation of said screw. Around this screw is provided a washer 8 housed in a bore 9 formed in the pad 1 and capable of receive the screw head 6.

L'extrémité de la vis 5 est décolletée, comme on le voit en 10, pour recevoir un ressort 11 prenant appui sur la came basculante 4.The end of the screw 5 is turned, as seen in 10, to receive a spring 11 bearing on the tilting cam 4.

Comme on le voit mieux sur la figure 4, la came 4 présente sensiblement la forme d'une languette dont les bords longitudinaux opposés 12 comportent chacun un axe 13 tourillonnant dans une chape ou analogue 14 bien visible sur les figures 1 à 3 et formée sur le dessous du tampon ou couvercle 1.As best seen in Figure 4, the cam 4 has substantially the shape of a tongue whose opposite longitudinal edges 12 each have an axis 13 journalled in a yoke or the like 14 clearly visible in Figures 1 to 3 and formed on the underside of the stamp or cover 1.

Revenant à la figure 4, on voit que la came 4 en forme de languette comporte une première extrémité 15 formée d'une partie16 recourbée par rapport au plan de la languette et suivie par un rebord 17 sensiblement parallèle au plan de la languette. Comme on le voit bien sur la figure 1, lorsque le couvercle ou tampon 1 est en position déverrouillée, le rebord 17 de la came basculante 4 vient en butée contre le ressort 11, mais on décrira cela en détail plus loin à propos du fonctionnement.Returning to FIG. 4, it can be seen that the tongue-shaped cam 4 has a first end 15 formed from a part16 curved with respect to the plane of the tongue and followed by a flange 17 substantially parallel to the plane of the tongue. As can be clearly seen in FIG. 1, when the cover or pad 1 is in the unlocked position, the flange 17 of the tilting cam 4 abuts against the spring 11, but this will be described in detail later on with regard to operation.

La came 4 comporte une deuxième extrémité 18 formée par une partie élargie 19 bien visible sur la figure 4, cette deuxième extrémité 18 étant constamment sollicitée vers le bas sous l'effet de la gravité, de sorte que la première extrémité 15 de la came 4 est constamment sollicitée vers le haut, le basculement de ladite came étant limité par la venue en butée du rebord 17 sur le ressort 11.The cam 4 has a second end 18 formed by an enlarged part 19 clearly visible in FIG. 4, this second end 18 being constantly urged downwards under the effect of gravity, so that the first end 15 of the cam 4 is constantly stressed upwards, the tilting of said cam being limited by the abutment of the flange 17 on the spring 11.

On a montré en 20 un bossage faisant saillie de la came ou languette 14 et situé entre les axes 13 et la partie recourbée 16. Ce bossage assure le centrage du ressort 11 lorsque le tampon 1 est verrouillé sur le cadre 2, comme cela est bien visible sur la figure 3.A boss has been shown at 20 projecting from the cam or tongue 14 and situated between the axes 13 and the part curved 16. This boss ensures the centering of the spring 11 when the pad 1 is locked on the frame 2, as is clearly visible in FIG. 3.

Une goupille ou analogue 21 traversant de part en part le fût de la vis 5 permet de limiter la course de cette vis au dévissage, puisque ladite goupille pourra venir buter contre le dessous 1a du tampon 1.A pin or the like 21 passing through from one side to the shank of the screw 5 allows to limit the travel of the screw in the unscrewing, since said pin may abut against the underside 1a of the pad 1.

Les chapes 14 dans lesquelles tourillonne la came ou languette 4 viennent de moulage avec le tampon ou couvercle 1. Quant à la came 4 elle est évidemment obtenue en une seule pièce par moulage. On notera ici que les axes 13 de la came tourillonnent dans un rebord 14a en arc de cercle prévu dans chaque chape 14.The yokes 14 in which the cam or tongue 4 journals are molded with the pad or cover 1. As for the cam 4, it is obviously obtained in one piece by molding. It will be noted here that the axes 13 of the cam rotate in a flange 14 a in an arc provided in each yoke 14.

Mais on expliquera dans ce qui suit comment s'effectue le verrouillage du tampon 1 sur le cadre 2.But we will explain in the following how the buffer 1 is locked on the frame 2.

On partira de la position représentée sur la figure 1 montrant le tampon 1 posé sur le cadre 2. Dans cette position, la vis 5 est dévissée et l'extrémité 18 de la came 4 est dirigée vers le bas sous l'effet de la gravité, étant entendu que le rebord 17 bute sur le ressort 11.We will start from the position shown in Figure 1 showing the pad 1 placed on the frame 2. In this position, the screw 5 is unscrewed and the end 18 of the cam 4 is directed downwards under the effect of gravity , it being understood that the rim 17 abuts on the spring 11.

Pour effectuer le verrouillage, comme on le voit bien sur la figure 2, on effectue le vissage de la vis 5 à l'aide d'un outil approprié, ce qui va provoquer le basculement de la came 4 dans le sens des aiguilles d'une montre.To carry out the locking, as can be seen in FIG. 2, the screw 5 is screwed using a suitable tool, which will cause the cam 4 to tilt in the clockwise direction. a watch.

Plus précisément, le ressort 11 agissant sur la came passera sur la partie recourbée 16, et cela jusqu'à sa position de centrage au droit du bossage 20, comme on le voit bien sur la figure 3 qui illustre la position finale de verrouillage.More precisely, the spring 11 acting on the cam will pass over the curved part 16, and this until its centering position in line with the boss 20, as is clearly seen in Figure 3 which illustrates the final locking position.

Dans cette position, la partie élargie ou méplat 19 prend appui sur le dessous 2a du cadre 2.In this position, the enlarged or flat part 19 is supported on the underside 2a of the frame 2.

Le ressort 11 est particulièrement avantageux en ce qu'il permettra de rattraper les différences possibles de hauteur entre le dessous 2a du cadre 2 et le dessous 1a du tampon 1. On sera donc toujours certain d'obtenir un verrouillage positif et fiable. Il convient de noter ici que si l'on désire enlever le tampon 1, celui-ci restera verrouillé sur le cadre, puisque le bossage 20 viendra alors en appui sur la partie décolletée 10 de l'extrémité de la vis 5.The spring 11 is particularly advantageous in that it will make it possible to make up for the possible height differences between the underside 2a of the frame 2 and the underside 1a of the buffer 1. It will therefore always be certain to obtain a positive and reliable locking. It should be noted here that if it is desired to remove the buffer 1, it will remain locked on the frame, since the boss 20 will then come to bear on the low-cut part 10 of the end of the screw 5.

Pour déverrouiller le tampon 1, il suffira de dévisser la vis 5 et le fonctionnement inverse de celui qui vient d'être décrit s'opérera, c'est-à-dire qu'on obtiendra les positions successives représentées sur les figures 3, 2 et 1. Il convient de noter qu'en dévissant la vis 5, la came 4 tendra naturellement, sous l'effet de la gravité, à reprendre sa position sensiblement verticale visible sur la figure 1.To unlock the buffer 1, it will suffice to unscrew the screw 5 and the reverse operation to that which has just been described will take place, that is to say that the successive positions represented in FIGS. 3, 2 will be obtained. and 1. It should be noted that by unscrewing the screw 5, the cam 4 will naturally tend, under the effect of gravity, to return to its substantially vertical position visible in FIG. 1.

On a donc réalisé suivant l'invention un dispositif de verrouillage d'un tampon ou couvercle sur un cadre qui est d'une conception mécanique particulièrement simple, peu coûteuse et d'un fonctionnement fiable tant au verrouillage qu'au déverrouillage, étant entendu qu'un tel dispositif permet avantageusement de voir de l'extérieur si le tampon est verrouillé ou non. On ajoutera encore ici que le tampon devra comporter au moins deux dispositifs conformes à cette invention.Thus, according to the invention, a device for locking a pad or cover has been produced on a frame which is of a particularly simple mechanical design, inexpensive and of reliable operation both when locking and unlocking, it being understood that 'Such a device advantageously allows to see from the outside if the pad is locked or not. It will also be added here that the tampon must include at least two devices in accordance with this invention.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.

Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit.On the contrary, the invention includes all the technical equivalents of the means described and their combinations if these are carried out according to the spirit.

Claims (6)

1. Dispositif de verrouillage d'un couvercle ou tampon (1) sur un châssis ou cadre (2) constituant par exemple l'entourage d'un trou d'homme dans une chaussée, et du type comprenant une came (4) montée pivotante ou basculante sur le dessous du tampon (1) et actionnable par un organe (3), tel qu'une vis (5), pour permettre à ladite came de s'engager dans ou sous le cadre (2), caractérisé en ce que la came (4) est montée librement pivotante sur le dessous du tampon (1) et l'organe ou vis (5), solidaire du tampon (1), agit sur l'une des extrémités ou première extrémité (15) de la came (4) par l'intermédiaire d'un ressort (11) interposé entre cette première extrémité et l'organe ou vis (5).1. Device for locking a cover or pad (1) on a chassis or frame (2) constituting for example the surround of a manhole in a roadway, and of the type comprising a cam (4) pivotally mounted or tiltable on the underside of the pad (1) and actuable by a member (3), such as a screw (5), to allow said cam to engage in or under the frame (2), characterized in that the cam (4) is pivotally mounted on the underside of the pad (1) and the member or screw (5), integral with the pad (1), acts on one of the ends or first end (15) of the cam (4) by means of a spring (11) interposed between this first end and the member or screw (5). 2. Dispositif selon la revendication 1, caractérisé en ce que l'organe ou vis précitée (5) possède une extrémité décolletée (10) dans laquelle s'emmanche le ressort (11).2. Device according to claim 1, characterized in that the abovementioned member or screw (5) has a low-cut end (10) in which the spring (11) is fitted. 3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la came précitée (4) présente sensiblement la forme d'une languette dont les bords longitudinaux opposés (12) comportent chacun un axe (13) tourillonnant dans une chape (14) formée sur le dessous du tampon (1).3. Device according to claim 1 or 2, characterized in that the aforementioned cam (4) has substantially the shape of a tongue whose opposite longitudinal edges (12) each have an axis (13) journalled in a yoke (14) formed on the underside of the pad (1). 4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la deuxième extrémité (18) de la came (4) comporte une partie élargie (19) et est constamment sollicitée vers le bas sous l'effet de la gravité, tandis que la première extrémité (15) de la came (4), constamment sollicitée vers le haut, comporte une partie recourbée (16) suivie par un rebord (17) susceptible de venir en butée sur le ressort (11).4. Device according to one of the preceding claims, characterized in that the second end (18) of the cam (4) has an enlarged part (19) and is constantly urged downwards under the effect of gravity, while that the first end (15) of the cam (4), constantly urged upwards, has a curved part (16) followed by a flange (17) capable of abutting on the spring (11). 5. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'entre les axes (13) et la partie recourbée précitée (16), la came (4) porte un bossage (20) permettant le centrage du ressort (11).5. Device according to one of the preceding claims, characterized in that between the axes (13) and the aforementioned curved part (16), the cam (4) carries a boss (20) allowing the centering of the spring (11) . 6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le fût de l'organe ou vis précitée (5) est muni d'une goupille transversale (21) limitant la course de dévissage.6. Device according to one of the preceding claims, characterized in that the barrel of the aforementioned member or screw (5) is provided with a transverse pin (21) limiting the unscrewing stroke.
EP88401963A 1987-07-30 1988-07-28 Fastener for a cover on a frame Expired - Lifetime EP0305245B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401963T ATE57972T1 (en) 1987-07-30 1988-07-28 LATCHING A LID ON A FRAME.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8710840 1987-07-30
FR8710840A FR2619593B1 (en) 1987-07-30 1987-07-30 DEVICE FOR LOCKING A LID OR BUFFER ON A CHASSIS

Publications (2)

Publication Number Publication Date
EP0305245A1 true EP0305245A1 (en) 1989-03-01
EP0305245B1 EP0305245B1 (en) 1990-10-31

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ID=9353735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401963A Expired - Lifetime EP0305245B1 (en) 1987-07-30 1988-07-28 Fastener for a cover on a frame

Country Status (6)

Country Link
EP (1) EP0305245B1 (en)
AT (1) ATE57972T1 (en)
DE (1) DE3860933D1 (en)
ES (1) ES2018624B3 (en)
FR (1) FR2619593B1 (en)
GR (1) GR3001293T3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002059425A1 (en) * 2001-01-23 2002-08-01 Fitjar Betongindustri As Method and device for joining of elements
FR2869053A1 (en) * 2004-04-15 2005-10-21 Norinco Sa LOCKING AND UNLOCKING DEVICE WITH A BUFFER KEY ON A FRAME
CN106836306A (en) * 2017-03-28 2017-06-13 章俊 A kind of gravity type well lid used based on municipal road and bridge engineering
US20180100286A1 (en) * 2015-09-17 2018-04-12 Neenah Foundry Company Manhole cover assembly
US10954649B2 (en) 2017-04-19 2021-03-23 Neenah Foundry Company Floating manhole cover assembly
US10968595B2 (en) 2015-09-17 2021-04-06 Neenah Foundry Company Manhole cover assembly
US11414829B2 (en) 2019-10-07 2022-08-16 Neenah Foundry Company Hybrid manhole cover

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3837684A1 (en) * 1988-09-19 1990-03-22 Turley Michael C Device for leaving or entering rooms to which the access is blocked, in particular in the case of civil-defence-construction rooms ("rescue and emergency-exit flap")
DE102018007117A1 (en) * 2018-09-08 2020-03-12 Rittmann Gmbh The replacement cover (1) Development of a retractable replacement cover (1) which forms the end of a cap (19). The hydrant cap (01) in turn protects the underground hydrant, which serves as a fitting for removing water from the public network

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1841760A (en) * 1929-02-06 1932-01-19 Crouse Hinds Co Fastening means
GB902286A (en) * 1959-10-08 1962-08-01 F S Moran & Co Engineers Ltd Improvements relating to locks
DE2410076A1 (en) * 1974-03-02 1975-09-04 Otto Dehne Lock for shaft cover held in frame - has pivoted lever whose lower hook end engages with frame

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1841760A (en) * 1929-02-06 1932-01-19 Crouse Hinds Co Fastening means
GB902286A (en) * 1959-10-08 1962-08-01 F S Moran & Co Engineers Ltd Improvements relating to locks
DE2410076A1 (en) * 1974-03-02 1975-09-04 Otto Dehne Lock for shaft cover held in frame - has pivoted lever whose lower hook end engages with frame

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002059425A1 (en) * 2001-01-23 2002-08-01 Fitjar Betongindustri As Method and device for joining of elements
FR2869053A1 (en) * 2004-04-15 2005-10-21 Norinco Sa LOCKING AND UNLOCKING DEVICE WITH A BUFFER KEY ON A FRAME
EP1593780A1 (en) * 2004-04-15 2005-11-09 Norinco Locking device for a manhole
US7320236B2 (en) 2004-04-15 2008-01-22 Norinco Device that makes it possible to lock and unlock, by means of a key, a stopper or cover on a frame
NO337081B1 (en) * 2004-04-15 2016-01-18 Norinco Sas Locking and releasing device with a key for a cover on a frame.
US20180100286A1 (en) * 2015-09-17 2018-04-12 Neenah Foundry Company Manhole cover assembly
US10968595B2 (en) 2015-09-17 2021-04-06 Neenah Foundry Company Manhole cover assembly
US11001982B2 (en) * 2015-09-17 2021-05-11 Neenah Foundry Company Manhole cover assembly
CN106836306A (en) * 2017-03-28 2017-06-13 章俊 A kind of gravity type well lid used based on municipal road and bridge engineering
US10954649B2 (en) 2017-04-19 2021-03-23 Neenah Foundry Company Floating manhole cover assembly
US11414829B2 (en) 2019-10-07 2022-08-16 Neenah Foundry Company Hybrid manhole cover

Also Published As

Publication number Publication date
FR2619593A1 (en) 1989-02-24
GR3001293T3 (en) 1992-08-26
FR2619593B1 (en) 1992-01-17
EP0305245B1 (en) 1990-10-31
ATE57972T1 (en) 1990-11-15
ES2018624B3 (en) 1991-04-16
DE3860933D1 (en) 1990-12-06

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