EP0141214B1 - Languette pour verrou tournant - Google Patents

Languette pour verrou tournant Download PDF

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Publication number
EP0141214B1
EP0141214B1 EP84111113A EP84111113A EP0141214B1 EP 0141214 B1 EP0141214 B1 EP 0141214B1 EP 84111113 A EP84111113 A EP 84111113A EP 84111113 A EP84111113 A EP 84111113A EP 0141214 B1 EP0141214 B1 EP 0141214B1
Authority
EP
European Patent Office
Prior art keywords
tongue
axis
latch shaft
latch
leading surface
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.)
Expired
Application number
EP84111113A
Other languages
German (de)
English (en)
Other versions
EP0141214A3 (en
EP0141214A2 (fr
Inventor
Dieter Ramsauer
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0141214A2 publication Critical patent/EP0141214A2/fr
Publication of EP0141214A3 publication Critical patent/EP0141214A3/de
Application granted granted Critical
Publication of EP0141214B1 publication Critical patent/EP0141214B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/14—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member rigid with the latch
    • E05C3/145—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member rigid with the latch pivoting about an axis perpendicular to the wing

Definitions

  • the invention relates to a tongue for a sash lock, consisting of an elongated tongue body, at one end of which there is an opening for torsionally rigid attachment to the locking shaft and at the other end at least one ramp surface (24) inclined with respect to a surface perpendicular to the axis of the locking shaft (30). is provided, which lies behind the door frame when it is closed, the tongue being designed in such a way that the fastening nut for the sash lock can be passed over the tongue fastened to the lock shaft and the tongue has a contact surface directed towards the lock housing around the opening.
  • Such a tongue is already known from EP-A-0056982.
  • a cam lock provided with such a tongue requires both for unlocking and for locking again that the correct key is first sought, then the key is pushed into the key catch and then through a corresponding rotary movement of the key the cam lock is either opened or closed.
  • a tongue for a key-operated lock which is provided in the contact surface of the tongue facing the lock housing with a circular groove coaxial to the lock shaft for receiving a torsion spring, which spring is at one end on the tongue and at the other end on the housing is supported and pretensioned in such a way that it urges the tongue into the closed position, in which the run-up surface forms a spherically bulging surface, such that this surface both in a cut parallel to the axis of the locking shaft and to the axis of the tongue, and also in a cut perpendicular to the axis of the locking shaft and parallel to the tongue axis has an outwardly bulging curvature.
  • a disadvantage of this construction is that the tongue has to be dismantled in order to mount the sash lock in a door frame so that the fastening nut for the sash lock can be pushed onto the lock housing.
  • the tongue according to the prior art does not have this disadvantage.
  • the object of the invention is to develop the tongue of the prior art so that not only an automatic closing without key actuation is made possible by simply pressing the door to be locked, the tongue should also be designed so that it is used to mount the lock in the door leaf does not have to be dismantled, it should also be given a shape that manages with relatively little material despite the above requirements and is nevertheless extremely stable.
  • a circular groove coaxial with the locking shaft for receiving a torsion spring is provided in the contact surface of the tongue, which torsion spring is supported at one end on the tongue and at the other end on the locking housing and is pretensioned such that it Tongue urges into the closed position, and that the run-up surface forms a spherically bulging surface, such that this surface both in a cut parallel to the axis of the locking shaft and the axis of the tongue, and in a cut perpendicular to the axis of the locking shaft and parallel to the axis the tongue has an outwardly bulging curvature, that the tongue forms a die-cast body which has a base plate strip directed towards the door leaf and parallel to it, from which side walls extend away from the door leaf and thereby on the one hand the spherical run-up surface and on the other hand this run-up surface supportive, rel Form stiffening walls extending along the sides of the base plate strip, and that the stiffening walls extending along the sides of
  • the tongue Due to the special design of the tongue, especially in the form of egg Nes die-cast body, which has a base plate strip directed towards the door leaf and parallel to it, from which side walls extend away from the door and on the one hand forms the spherical running surface, on the other hand supporting this running surface, stiffening walls running along the sides of the strip, the tongue is proportionate Little material consumption extraordinarily stable, although despite this high stability due to the feature that the stiffening walls running along the strip sides have a decreasing, preferably linearly decreasing height towards the opening for the closing shaft, it is still possible to slip the fastening nut over the tongue mounted on the closing shaft end .
  • the fact that the tongue requires only a relatively small amount of material has, on the one hand, the advantage of less expensive production and, on the other hand, the advantage of less inertia, so that the forces required to accelerate the tongue remain low.
  • an opening is provided in the bottom of the circular groove for receiving one end of the torsion spring.
  • the other end of the torsion spring can be supported in any suitable manner by the housing of the sash lock, for example by an angle of rotation limiting edge which, in most commonly used sash locks, results from the fact that the contact surface, which forms the lock housing for the tongue, extends over a certain arc Countersink in which a stop lug extending from the tongue engages and thus limits the angle of rotation.
  • the run-up surface when cut perpendicular to the axis of the locking shaft and parallel to the axis of the tongue, the run-up surface has a radius of curvature whose center of curvature lies outside the axis of the lock shaft, in particular beyond it (seen from the run-up surface) and to this axis of the lock shaft as is also offset from the axis of the tongue.
  • a curved surface is created, which leads between the tongue and the door leaf during the closing process to a torque component that remains essentially constant during the closing process.
  • the run-up surface cut parallel to the axis of the lock shaft and the tongue axis forms a radius of curvature whose center of curvature (as seen from the run-up surface) lies on this side of the axis of the lock shaft and approximately in the plane in which the Contact surface on the lock housing or in the plane that intersects the torsion spring in the spring center perpendicular to the axis of the spring.
  • the wall forming the run-up surface is cut off at its free end and support walls such that they form a rectangle with rounded edges in the end view in the direction of the tongue axis.
  • the die casting mold for manufacturing the tongue can be simplified and u. U. increase the stability of the tongue even further when the space below the cut-off ramp is filled with die-cast material.
  • the tongue can be made of die-cast metal, but it can also be made of plastic material according to its strength, especially if good insulation properties are important.
  • a so-called sash lock can be seen in a side view, as it is often used for example in electrical control cabinets.
  • the lock comprises a lock bearing 10, which has a receptacle for an actuating handle or key 14 at its free end and is rotatably mounted in the bearing 10 by 90 °.
  • the angle of rotation is limited by a lug 16, which starts from the tongue 18 and abuts two stop surfaces 20, which are formed in that the closure housing stop surface 21 has an incision 23 which runs over a corresponding circular arc, so that a certain desired angle of rotation limitation of, for example, 90 °.
  • the tongue 18, also called sash fastener, is fastened to the actuating shaft 14 by means of a cap screw 22 with the interposition, for example, of a washer 25.
  • the tongue slides with its contact surface 24 on a corresponding path of the door frame when the control cabinet door is closed.
  • the run-up surface 24 is slightly inclined, as can be seen in FIG. 1.
  • the tongue 18 is designed in such a way that the fastening nut 34 for the sash lock, which bears the general reference number 11, can be passed over the tongue 18 fastened to the locking shaft 14 with the cap screw 22, so that the tongue is not dismantled for mounting the lock are needed.
  • the closure 11 can be inserted through a correspondingly punched hole in the door leaf 26 including the tongue 18 and then the screw 34 can be attached and screwed onto the external thread 36 of the bearing housing 10.
  • the housing 10 In order to secure the housing 10 against rotation, it can be provided with chamfers 38 at one or more points, which chamfer against corresponding constrictions in the door leaf opening.
  • FIG. 2 shows, in a representation similar to FIG. 1, a sash lock 11 which is conventional with respect to the lock housing, but which bears a newly designed tongue 18 which in turn is fastened to the lock actuating shaft 14 by means of a cap screw 22.
  • a view from the front of the closure shown in FIG. 2 the closure has a so-called double-bit insert, so a special double-bit key is necessary for its actuation.
  • FIG. 4 shows, in a side view, as can also be seen in FIG. 2, in which certain areas have broken away, however, that in the contact surface 28 of the tongue 18, which contact surface 28 bears against the contact surface 21 of the closure housing in the assembled state ,
  • a circular groove 32 coaxial to the axis 30 of the closing shaft is provided for receiving a torsion spring 36 shown here, which torsion spring 36 is located at one end 40 on the tongue and at the other end 42 at a suitable point, for. B. stop surface 20, is supported and biased such that it urges the tongue 18 into the closed position.
  • a hole or an opening can be provided in the circular groove bottom, for example in the form of a through hole, as can be seen in FIG. 5 at reference number 44.
  • the run-on surface 24 of the tongue 18 according to the invention has a spherically bulging shape, such that this surface shows a curvature 45, in particular a circular curvature, in particular with a cut parallel to the closure shaft axis 30 and the tongue axis 31, and that also with one to the closure shaft axis 30 vertical and parallel to the tongue axis 34 such a bulging curvature is given, as can be clearly seen in FIG. 5.
  • Such a cut results in a curvature with a radius of curvature R1, the center of curvature M1 of which lies outside the closure shaft axis 30, in particular beyond it (viewed from the surface 46) and offset from this shaft axis 30 and also from the tongue axis 31.
  • the radius of curvature R1 and the center of curvature circle M1 are shown in FIG. 5 for the lower surface plane 48.
  • the radius R2 and the center of the circle M2 apply accordingly to the upper surface plane 49.
  • the radii R1 and R2 are approximately of the same size, but the centers of the circles M1 and M2 are offset from one another on a line 50, which in turn is at a distance A from the shaft axis 30 and at an angle with respect to the tongue axis 31 a is twisted.
  • the path of the contact point 52 is indicated schematically by the arrow 54.
  • the tongue height C and the tongue width E are then expediently chosen so that and E is 0.45R. This also results in a center of curvature shift between M1 and M2 (F) of
  • the radius of curvature formed by the run-on surface 24 parallel to the axis of the locking shaft and the tongue axis, but even more so the corresponding radius of curvature D projected on the line 50 is considerably smaller than the radius of curvature R, is in particular less than half, and lies on this side of the shaft axis 30 ( seen from the support surface 24) and in a plane 56 (see FIG. 4) which lies approximately in the plane of the contact surface between the tongue and the housing (reference number 21) or also in the plane in which the spring center of the torsion spring 36 lies.
  • the tongue 18 in the form of a die-cast body which has a base plate strip 56 which is directed towards the door leaf and parallel to it, from which side walls 58, 60, 62 extend and on the one hand supports the spherical running surface 24 and on the other hand supports this running surface 24, Form stiffening walls 58, 62 running along the sides of the strip.
  • the stiffening walls 58, 62 running along the sides of the strip are provided with a decreasing, preferably linearly decreasing, height in the direction of the opening 64 for the locking shaft 30, see reference numerals 66 and 68.
  • the shape of the design enables the die-cast body to have a flat bearing surface 70 around the opening 64 for the head of a tongue fastening screw 22 or a corresponding fastening nut.
  • the die-cast body preferably has an opening 64 for the locking axis 30, which initially has an area directed toward the door leaf with a prismatic, in particular square, cross section, see reference number 72.
  • This arrangement enables a particularly secure torsional rigidity between the tongue and the actuating axis by the axis of rotation correspondingly has prismatic cross-section, the remaining breakthrough area then having a round cross-section with a somewhat reduced diameter, so that there is a support shoulder 74 for the end of the prismatic actuating shaft, on which the tongue can then be supported.
  • the fastening screw 22 then extends through the remaining cross-section of the opening 64, which is screwed into a corresponding axial threaded hole of the prismatic part of the shaft, or else the prismatic shaft merges into a threaded round part which passes through the round bore 64 passes through and onto which a corresponding fastening nut can be screwed.
  • Fig. 6 which shows a view from below of the tongue, the square area 72, the shoulder surface 74 and the round opening area 76 can be clearly seen, as well as the circular groove 32 and the opening 44 for the one spring end 40.
  • He also f indungsgemässe tongue 18 has a stop lug 16, which is, however, recognized here as a projecting annular surface area 78, see also the end view shown in Fig. 7 a according to the arrow a in FIG. 6. from this Fig. 7, there is also that it is convenient to round off the tongue edges facing away from the door, see reference numerals 80 and 82.
  • the space 84 located below the cut-off run-on surface 24 is usually filled with die-cast material, see the corresponding illustration in FIG. 4, which also facilitates the injection molding process when the tongue is produced using the injection molding process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Casings For Electric Apparatus (AREA)

Claims (7)

1. Languette (18) pour fermeture à tourniquet (11), constituée par un corps de languette de forme allongée qui comporte, à l'une de ses extrémités, une ouverture de passage (64) ménagée pour sa fixation, sans possibilité de rotation relative, à l'arbre (14) du dispositif de fermeture et, à son autre extrémité, au moins une surface de glissement (24) qui est inclinée par rapport à une surface perpendiculaire à l'axe de l'arbre (30) du dispositif de fermeture et qui, au moment de la fermeture, se glisse derrière le cadre de la porte, la languette (18) ayant une forme telle que l'écrou de fixation (34) du dispositif de fermeture à tourniquet (11) peut dépasser la languette (18) fixée à l'arbre (30) du dispositif de fermeture et la languette comportant, autour de l'ouverture de passage (64), une surface d'appui (28) située du côté de l'enveloppe (10) du dispositif de fermeture, caractérisée en ce que la surface de contact (28) de la languette (18) comporte une rainure circulaire (32) disposée coaxialement par rapport à l'arbre (30) du dispositif de fermeture et destinée à recevoir un ressort de torsion (36), ce ressort de torsion (36) prenant appui, par l'une de ses extrémités (40), sur la languette (18) et, par son autre extrémité (42), sur l'enveloppe (10) du dispositif de fermeture et étant précontraint de manière à pousser la languette (18) dans sa position de fermeture, et en ce que la surface de glissement (24) est une surface incurvée de telle manière que, vue en coupe parallèlement à l'axe de l'arbre (30) du dispositif de fermeture et à l'axe (31) de la languette (18) et vue en coupe perpendiculairement à l'axe de l'arbre (30) du dispositif de fermeture et parallèlement à l'axe (31) de la languette (18), cette surface présente une incurvation vers l'extérieur (Ri, R2, D), en ce que la languette (18) est un corps réalisé par moulage sous pression qui comporte une plaque de base (56) située du côté du battant (26) de la porte auquel elle est parallèle et à partir de laquelle des parois latérales (58, 60, 62) s'écartent du battant (26) de la porte et constituent d'une part la surface de glissement incurvée (24) et, d'autre part, des parois de raidissement (58,62) qui servent d'appui à cette surface de glissement (24) et s'étendent le long des côtés de la plaque de base (56) et en ce que les parois de raidissement (58, 62) qui s'étendent le long des côtés de la plaque de base (56) ont une hauteur (66, 68) qui va en diminuant, de préférence linéairement, dans la direction de l'ouverture de passage (64) ménagée pour l'arbre (30) du dispositif de fermeture.
2. Languette selon la revendication 1, caractérisée en ce que le fond de la rainure circulaire (32) comporte une ouverture de passage (44) pour le logement de l'une des extrémités (40) du ressort de torsion (36).
3. Languette selon l'une des revendications 1 ou 2, caractérisée en ce que, vue en coupe perpendiculairement à l'axe de l'arbre (30) du dispositif de fermeture et parallèlement à l'axe (31) de la languette (18), la surface de glissement (24) a un rayon de courbure (R) dont le centre de courbure (M) se trouve à l'extérieur de l'axe de l'arbre (30) du dispositif de fermeture, notamment au-delà de celui-ci (vu de la surface de glissement) et est décalé par rapport à cet axe de l'arbre (30) du dispositif de fermeture et par rapport à l'axe (31) de la languette (18).
4. Languette selon l'une des revendications 1, 2 ou 3, caractérisée en ce que, vue en coupe parallèlement à l'axe de l'arbre (30) du dispositif de fermeture et à l'axe (31) de la languette (18), la surface de glissement (24) a un rayon de courbure dont le centre de courbure (vu de la surface de glissement [24]) se trouve en-decà de l'axe de l'arbre (30) du dispositif de fermeture et à proximité du plan (56) dans lequel se trouve la surface d'appui (21) contre l'enveloppe (10) du dispositif de fermeture ou dans le plan qui coupe le ressort de torsion (36) au milieu du ressort perpendiculairement à l'axe du ressort.
5. Languette selon l'une des revendications 1 à 4, caractérisée en ce que la paroi (60) qui constitue la surface de glissement (24) à son extrémité libre et les parois d'appui (62, 58) sont coupées de telle manière que, vues de face (fig. 7) dans la direction de l'axe (31) de la languette 18, elles forment un rectangle à angles arrondis (80, 82).
6. Languette selon l'une des revendications 1 à 5, caractérisée en ce que l'espace (84) situé au-dessous de la surface de glissement coupée (24) est rempli d'une matière moulée sous pression.
7. Languette selon l'une des revendications 1 à 6, caractérisée en ce que la languette (18) est réalissée par injection de métal coulé sous pression ou de matière plastique.
EP84111113A 1983-10-22 1984-09-18 Languette pour verrou tournant Expired EP0141214B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833338461 DE3338461A1 (de) 1983-10-22 1983-10-22 Zunge fuer einen vorreiberverschluss
DE3338461 1983-10-22

Publications (3)

Publication Number Publication Date
EP0141214A2 EP0141214A2 (fr) 1985-05-15
EP0141214A3 EP0141214A3 (en) 1986-05-21
EP0141214B1 true EP0141214B1 (fr) 1988-01-27

Family

ID=6212525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111113A Expired EP0141214B1 (fr) 1983-10-22 1984-09-18 Languette pour verrou tournant

Country Status (2)

Country Link
EP (1) EP0141214B1 (fr)
DE (2) DE3338461A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415869C1 (de) * 1994-05-05 1995-11-02 Steinbach & Vollmann Drehriegelverschluß

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694779B1 (fr) * 1992-08-17 1994-10-14 Telemecanique Dispositif d'ouverture et de fermeture pour porte d'enveloppe.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR546641A (fr) * 1922-02-01 1922-11-20 Loqueteau pour vasistas
FR2067832A5 (fr) * 1969-11-18 1971-08-20 Dubois & Cie
DE3102340A1 (de) * 1981-01-24 1982-08-26 Ramsauer, Dieter, 5620 Velbert Auflaufzunge fuer einen einschraubbaren vorreiberverschluss
FR2514060A1 (fr) * 1981-10-06 1983-04-08 Telemecanique Electrique Serrure a fermeture automatique par clenche pivotante

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415869C1 (de) * 1994-05-05 1995-11-02 Steinbach & Vollmann Drehriegelverschluß

Also Published As

Publication number Publication date
EP0141214A3 (en) 1986-05-21
DE3338461A1 (de) 1985-05-02
DE3469048D1 (en) 1988-03-03
EP0141214A2 (fr) 1985-05-15

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