EP0861955B1 - Lockable window handle - Google Patents

Abstract

The knob (3) has a neck rotarily mounted in a fitment (4) fixed to the window casement. The neck has a holder for an operating pin (21). A closure or bolt unit is inserted into the handle-knob and has an axially displaceable, non-circular blocking element (17) fitting into an opening in the fitment and connected to the operating pin. The opening (39) is formed by an opening possessing the outer shape of the blocking element, and positioned in a plate (38) fixed to the window casement and positioned on the underside of a fitment-housing (23). The blocking element is in the form of a sleeve (17) at least partly enclosing the operating pin and positioned in the holder (7,9) for the operating pin.

Description

The invention relates to a lockable window handle with a handle and a grip head, the neck part rotatable in a lockable on a window sash Fitting part is stored and a seat for one Has actuating mandrel, and with one in the handle head usable locking or locking unit, which a axially displaceable locking element for engaging in a Has opening of the fitting part.

Such a lockable window handle is from the DE-GM 84 32 686 known. This window handle has one Grip head with a neck attachment in which a square hole trained to receive an actuating mandrel is. There is a recess at the top of the handle head provided on the side of the receptacle, which is a cylinder lock receives. The cylinder lock has a cylindrical one Lock bolt on which has a through hole in the bottom Part of the handle head penetrated and by key actuation can be extended or withdrawn. The locking bolt penetrates with its lower one End a hole in the fitting part in order in a recess the same.

With lockable window handles one is general endeavors not to make the handle head too large to saving material on the one hand and one on the other not to have clunky grip head. The downsizing the handle head encounters practical difficulties, because the locks to be used are usually given Have dimensions and still space for the actuating square, So the actuating mandrel and its holder must remain. If the lock is close to the square and thus to the Handle axis of rotation moved, so can be very large loads occur. An insufficient distance between the locking bolts and handle rotation axis has the consequence that the attacking Force very high in relation to the effective lever arms is translated. Simple stop plates or rosettes keep such stress as standard hardware components stood badly or not.

In the generic window handle, it was therefore provided that that the stop plate as with a bearing bush one-piece metal part is formed, in which the Wells for receiving the locking bolt immediately are arranged next to the bearing bush. This will but the design of the stop plate or the fitting part extremely complex, so that this too another complicated and therefore expensive window handle is created. Furthermore, the grip head still has to be very voluminous and therefore bulky.

The object of the invention is therefore a compact lockable window handle to create the easy is built and therefore inexpensive.

According to the invention, this object is achieved by a lockable window handle of the type mentioned solved in that the locking element is non-circular trained rotatably connected to the actuating mandrel and the opening through an the outer contour of the locking element having opening in one at the bottom of a fitting housing arranged on the window sash fixed plate is formed, by actuation the locking or locking unit with the engagement Lockable by locking element and opening of the window handle is.

According to the invention, the locking element is no longer laterally, but now axially to the axis of rotation of the handle head arranged. This is then a reduction in the Grip head possible, especially since the blocking or Blocking opening in the fitting part no longer on the side the through opening for the actuating mandrel is, but this is itself. So it can already existing and necessary for the actuating mandrel Openings are used, only their diameter is something to change. This is the window handle easy and inexpensive to manufacture.

In a first preferred embodiment, that the locking element one in the recording for the Actuating mandrel arranged, the actuating mandrel at least partially enclosing sleeve.

In a preferred embodiment, the sleeve is in the form of a Square sleeve designed. In this way, on the one hand for a reliable locking or a reliable Blocking is ensured, on the other hand there are four locking or blocking positions possible. Twisting the sleeve in the blocking opening becomes reliable due to this External contour prevented. Because actuating pins in themselves are already in the form of a square, so also the expansion of the receptacle or through opening easily possible.

In another preferred embodiment, this is Locking element in the form of one piece with the actuating pin associated approach. This approach preferably has the same diameter as that Actuating mandrel on, in principle, represents an extension of the actuating mandrel and goes over a Outer circumference of the operating mandrel all around constriction in this over. The constriction ensures that the actuating pin in the unlocked position or unlocked state of the window handle in the Feed-through opening is rotatable. After axial displacement the actuating pin and the approach is this then locked or blocked in the through opening, so that the window handle can be locked in this position can. The constriction is preferably essentially for this purpose cylindrical, while the approach in Form a square mandrel is formed.

In training it is provided that the admission for the Actuating mandrel and the locking element (sleeve or shoulder) in the form of a through opening within a Neck forming core is formed and that the Recording in their facing away from the opening in the plate End area an enlarged diameter for receiving a locking cylinder of the locking or locking unit having. So it will also be the locking cylinder Locking and locking unit above the axis of rotation of the Window handle arranged so that a total of a small and compact handle head due to the invention Design can be trained.

Preferably, at the end facing away from the locking element Lock cylinder a acting on the locking element Push button or rotary button trained. Accordingly, Close either the push button and so that the square sleeve in the square opening of the fixed pressed against the window panel. Or but the knob is turned to lock the the extension of the actuating mandrel forming approach to be fed axially in the direction of the square opening. For this it is preferably provided that the locking or locking unit at its lower end one with an external thread provided pin that is in an approach trained, axially extending threaded hole can be determined is. The window handle is then reliable blocked.

Since the actuating pin in the first preferred embodiment is arranged inside the square sleeve, but only the square sleeve by pressing the push button to be relocated is more preferred in another Design provided that the core, the actuating pin and the sleeve for forming a bore for Inclusion of a cross pin with each other in the assembled Bores can be aligned, wherein the bores of the sleeve have a larger longitudinal diameter have than the holes of the actuating mandrel and core. Accordingly, the actuating pin can be reliable fixed axially immovable in the grip head be, while the sleeve due to the larger diameter of the holes opposite the actuating pin and the Core is shiftable. The size of the longitudinal diameter as well as the size of the transverse bore then formed per se then determines the possible stroke of the sleeve. In the solved This can be indicated by the bottom of its hole Cross pin and cross hole are in the locked position The lock is in the locking cylinder. Especially when such window handles as safety devices in kindergartens, retirement homes or mental hospitals are also used in one such lockable window handle according to certain regulations to prevent by removing the window handle the window can be opened. For this, the one provided that the bore for receiving the cross pin when the handle head is mounted from the outside is not accessible. Around the blocking or blocking opening to have the plate on the window sash the fitting housing has screw guides, which at the top by a common cover plate are lockable. This cover plate is also to remove the window handle and thus open the Prevent window, preferably in the closed position the window handle through the edge of the core of the handle head partially covered and by a protruding collar cannot be pushed away on the fitting housing.

At four stable rest positions, each under one 90 ° to each other for the window handle creating is the core of what is in continuing education lower end area surrounding locking ring provided, which each with two diametrically opposite one another Interacting spring elements in the fitting housing. The For this purpose, the locking ring preferably has on its outside four evenly distributed over the circumference Notches on, and the spring elements are on her the side facing the locking ring each with the recesses essentially complementary projections provided, the projections of the two spring elements are diametrically opposed to each other. hereby can the projections of the spring elements when turning the Handle and thus the handle head by turning the Snap the locking ring clearly into its recesses.

In a further development, the spring elements are in the form of Ring parts formed and have at their the projections diametrically opposite sides a resilient, extending outward and downward approach. On this is then preferably one on the fitting housing snap-on cover or cover cap can also be snapped on. This is such a cover or cover cap on the one hand reliably fixed to the fitting housing, on the other others can do this at any time by loosening the locking connection be removed. The cover can be made of metal, for example, sheet metal. The same applies to a sleeve surrounding the handle head. It can also entire window handle made of metal or Plastic or from a plastic-metal combination.

Fig. 1

einen Längsschnitt durch eine erste Ausführungsform eines erfindungsgemäßen Fenstergriffes in Öffnungsstellung;

Fig. 2

einen Längsschnitt durch den Griffkopf senkrecht zum Schnitt in Fig. 1;

Fig. 3

den Fenstergriff aus Fig. 1 in Schließstellung;

Fig. 4

den Griffkopf aus Fig. 2 in Schließstellung;

Fig. 5

eine Unteransicht des Fenstergriffes;

Fig. 6a u. b

eine Seiten- und Unteransicht einer eine Blockieröffnung aufweisenden Platte;

Fig. 7a u. b

einen Kern des Griffkopfes in teilweisem Längsschnitt sowie in Unteransicht;

Fig. 8

einen Längsschnitt durch einen den Kern umgebenden Ring;

Fig. 9a-c

eine als Sperrelement dienende Hülse in Unteransicht, Seitenansicht und im Längsschnitt;

Fig. 10a u. b

ein Beschlaggehäuse in Unteransicht und Seitenansicht;

Fig. 11a-e

einen Rastring sowie ein Federelement in verschiedenen Ansichten;

Fig. 12

einen Längsschnitt durch eine zweite Ausführungsform eines erfindungsgemäßen Fenstergriffes in Öffnungsstellung;

Fig. 13

eine Draufsicht auf den Fenstergriff aus Fig. 12; und

Fig. 14

den Fenstergriff aus Fig. 12 in Schließstellung.

Further advantages and features of the invention result from the claims and from the following description, in which an exemplary embodiment is explained in detail with reference to the drawings. It shows:

Fig. 1

a longitudinal section through a first embodiment of a window handle according to the invention in the open position;

Fig. 2

a longitudinal section through the handle head perpendicular to the section in Fig. 1;

Fig. 3

the window handle of Figure 1 in the closed position.

Fig. 4

the handle head of Figure 2 in the closed position.

Fig. 5

a bottom view of the window handle;

Fig. 6a u. b

a side and bottom view of a plate having a blocking opening;

Fig. 7a u. b

a core of the handle head in partial longitudinal section and in bottom view;

Fig. 8

a longitudinal section through a ring surrounding the core;

Figures 9a-c

a serving as a locking element in bottom view, side view and in longitudinal section;

10a u. b

a fitting housing in bottom view and side view;

11a-e

a locking ring and a spring element in different views;

Fig. 12

a longitudinal section through a second embodiment of a window handle according to the invention in the open position;

Fig. 13

a plan view of the window handle of Fig. 12; and

Fig. 14

the window handle from Fig. 12 in the closed position.

The one in Figs. 1-11 with its various components shown window handle 1 according to the invention a first Embodiment has a handle 2 with essentially hemispherical cross section, one perpendicular to it cantilevered grip head 3 and a fitting part 4 on. The handle 2 and the handle head 3 are in the Fitting part 4 rotatably mounted.

The grip head 3 initially has one in the form of a cylinder sleeve trained core 5, whose outer surface, 7a and b can be seen on two each other opposite sides 6, 6 'flattened is. The core 5 is centrally located with a through opening 7 provided which differ in two shots Diameter 8, 9 is divided. While the receptacle or opening 9 in the form of a square is formed, the receptacle 8 at the upper end region of the core 5 is also substantially cylindrical his. The lower end region or neck 10 has by gradually reducing the outside diameter of the Core 5 two ring sections 11, 12. In the area of Ring section 11 is the core 5, as shown in FIGS. 1 and 3 can be seen in the transverse direction on the one hand with a Bore 13 and on the other hand with a blind hole Bore 13 'provided which are in alignment with each other run.

As can be seen in FIGS. 1-4, the receptacle 8 is used the through opening 7 of the core 5 for receiving a fixed locking cylinder 14 of a locking or locking unit. The protrudes by means of a movable push button 15 Lock cylinder 14 upwards out of the handle head 3. The whole is closed at the top by a cover 16. A sleeve 17 is inserted into the receptacle 9, which by pressing the push button 15 axially is displaceable within the receptacle 7 or 9. This Sleeve 17 is shown in detail in FIGS. 9a-c.

As can be seen from this figure, the sleeve 17 has the Form a square sleeve. It is inside one with a square hole 18 and on its top with a circular bore 19 smaller Diameter provided. On two diametrically opposite one another Longitudinal sides have the sleeve 17 oval or Long-round bores 20, 20 ', which, like FIGS. 1 and 2 can be seen in the assembled state of the handle head 3 aligned with the bores 13, 13 'in the core 5 are. These holes 20, 20 'point in the longitudinal direction a larger diameter than the bores 13, 13 ' on.

In the square bore 18 of the serving as a locking element Sleeve 17 is a square Actuating mandrel 21 can be used. By operating the handle 2 is not a by the actuating mandrel 21 illustrated establishment of a casement like a Window gear, a lock nut or the like.

The actuating mandrel 21 has a through bore 22 which in the assembled state after inserting the core 5, sleeve 17 and actuating mandrel 21 aligned with one another is aligned with the bores 20, 20 ', 13, 13'. The Bore 22 has the same diameter as that Bores 13, 13 'on, while the holes 20, 20' of Sleeve 17, as already said, in the longitudinal direction have a larger diameter. After aligning it is like this a transverse bore formed in which a Cross pin for setting the actuating mandrel 21 in the core 5 is insertable. In this way there is an axial displacement the fastening mandrel 21 reliably prevented.

As can be seen in Fig. 1-4, this cross hole is located after inserting the neck 10 of the core 5 in the Fitting part 4 in this way within a fitting housing 23 that it is no longer accessible from the outside. On the Ring portion 11 of the core 5 is one shown in FIG. 8 Ring part 24 pushed on. This ring part 24 has an outer peripheral edge 25 with which it rests on the frame of the fitting housing 23.

The fitting housing 23 of the fitting part 4 is used for one in the manner already described for receiving the Neck 10 of the core 5 of the handle head 3 and the other for fixing to a window sash of one to be locked or opening window. This fitting housing 23 has on the one hand a frame 26 which at 27a-d has an inward at its lower end Has taper to form a latch. Of is the fitting housing 23 with two each other opposite screw guides 28, 28 ', by means of which fixing on the window sash by insertion or inserting screws. On the top of the screw guides 28, 28 'is for covering the screw guides a cover plate 29, 29 ' be applied. For this purpose, the screw guides 28, 28 ' Corresponding support surfaces on the frame on its top 26 of the fitting housing 23.

The screw guides 28, 28 'are surrounding the fitting housing 23 each spring elements 30, 30 'essentially cylindrical shape insertable. This Spring elements 30, 30 'act with one on the Ring section 12 of the core 5 push-fit snap ring 31 together.

We refer below to FIGS. 11a-e, in which the spring element 30 'and the locking ring 31 shown are. The spring element 30 'has an im at one end essentially straight tangential to the cylinder surface arranged section 32 wing-like design on the middle with a projecting projection 33 is provided. On the diametrically opposite projection 33 opposite side of the spring element 30 ' an approach 34 formed, which down and extends outside. As Fig. 11e shows, this approach shows 34 at its free outer end a flat 35 and thus serves as a locking part for a still to be described Cover or cover cap.

The locking ring 31 is complementary to the projection 33 formed recesses 36a-d on its outer peripheral surface on which is even across the circumference of the locking ring 31 are distributed. These four recesses 36a-d, two of which are diametrically opposed to each other opposite recesses with the opposite one another Projections 33 of the two spring elements 30, 30 'interact, allow two at an angle stable rest positions of 90 ° to each other Window handle 1.

The spring element 30, 30 'is, as its name suggests, especially in the area of the protrusions 33 trained so as to rotate the handle head 3 enable.

On the top of the fitting housing 23 is a cover or a cap 37, for example Plastic or metal, attachable and by means of the approach 34 and / or the locking lugs 27a-d can be locked. To this The hardware housing and all associated with it Parts reliably covered to the outside.

On the underside of the screw guides 28, 28 'of Fitting housing 23, a plate 38 can be placed, which is fixed in this way on the window sash. The Plate 38 has a square opening 39 in the middle, which on the one hand as a passage opening for the actuating mandrel 21 serves and on the other hand as a blocking or Locking opening for the sleeve 17 serving as a locking element. For this purpose, the square opening 39 has an outer diameter the sleeve 17 corresponding diameter. At the side of the square opening 39 are circular Openings 40, 40 'are provided, which are for placement or transfer over the screw guides 28, 28 ' serve.

On the outside of the handle head 3 can also Sleeve 41, for example made of metal or plastic, as Cover be put on.

The entire window handle 1 can be made of metal, for example Sheet metal or plastic. It is also a plastic-metal combination possible.

1 and 2, the handle 2 is over the handle head 3 rotatable within the fitting part 4. The push button 15 of the locking cylinder 14 of the locking or locking unit is in its upper position. The sleeve 17 is located above the opening 39 and lies with the lower edge of its bore 20, 20 'on a cross pin (not shown) in the transverse bore 22. Now the locking or locking unit by pressing the push button 15 actuated axially downward, so the sleeve 17 axially downward in the opening 39. In your End position (Fig. 3 and 4) is now the sleeve 17th with its lower end in the blocking and blocking opening 39, which secures the window handle against twisting is.

In the second embodiment shown in Figs. 12-14 are the same components as the first Embodiment provided with the same reference numerals. It only the main differences received because the other components and their function already described for the previous embodiment are.

The invention shown in Figs. 12-14 Window handle 101 in turn has a handle 102 and one of them essentially vertically projecting handle head 103 and a fitting part 4. Handle head 103 as well Handle 102 are essentially integral with each other connected and rotatably mounted in the fitting part 4.

The grip head 103 has one inside core 105 in the form of a cylinder sleeve, which is provided centrally with a through opening 107, which in two recordings of different diameters 108, 109 is divided. During the recording or opening 109 is designed in the form of a square it is in the recording 108 in the upper end region of the core 105 around a cylinder-shaped receptacle.

The receptacle 108 of the through opening 107 of the core 105 is used to hold a fixed locking cylinder 114 a locking or locking unit. At the top of the Lock cylinder 114 is, for example, by means of a Key rotatable knob 115 arranged. In contrast this closing protrudes from the previous embodiment or locking unit not out of the receptacle 108, but is deepened in it.

At the lower end, the lock cylinder 114 is with a an externally threaded pin 130 which, as can be seen in FIG. 12, in a longitudinal direction extending threaded bore 131 as a locking element serving approach 117 set by screwing is. This approach 117 is integral with an actuating mandrel 121 and points like this the shape of a square. In the transition area between Neck 117 and actuating pin 121 is a constriction 132 provided, which is cylindrical is. About this constriction 132 is the through Approach 117 extended actuating mandrel 121 in one Square opening 139 of a plate 138 rotatable, which on the underside of the screw guides 28, 28 'of the fitting housing 23 is placed in this way on the window sash to be committed.

In Fig. 12 the handle 102 is over the handle head 103 rotatable within the fitting part 4. The knob 115 of the locking cylinder 114 of the locking or locking unit is in its upper position. The constriction 132 is located within opening 139 and approach 132 above this opening. Now the Pin 130 and with it the neck 117 by turning the Rotary knob 115 moved axially downwards, it arrives the approach 117 down into the opening 139. the window handle 101 is secured against twisting.

Claims (21)

1. Lockable window handle with a handle member and a handle head, whose neck part is mounted in rotary manner in a fitting part fixable to a window casement and having a receptacle for an operating pin, and with a locking or bolt unit insertable in the handle head and which has an axially displaceable arresting element for engagement in an opening of the fitting part, characterized in that the arresting element (17, 117) is constructed in non-circular manner and is connected to rotate with the operating pin (21, 121) and the opening (39, 139) is formed by an opening (39, 139) having the outer contour of the arresting element (17, 117) in a plate (38, 138) fixed to the window casement and located on the underside of a fitting housing (23) and by operating the locking or bolt unit (14, 114, 15, 115) with engagement of the arresting element (17, 117) and opening (39, 139) the window handle (1, 101) can be locked.
2. Window handle according to claim 1, characterized in that the arresting element has a sleeve (17) located in the receptacle (7, 9) for the operating pin (21) and which at least partly surrounds the latter.
3. window handle according to claim 1 or 2, characterized in that the sleeve (17) is constructed in the form of a square sleeve.
4. Window handle according to claim 1, characterized in that the arresting element is in the form of a lug (117) connected in one piece to the operating pin (121).
5. Window handle according to claim 4, characterized in that the lug (117) has the same diameter as the operating pin (121) and passes into the latter by means of a constriction (132) passing round the outer circumference of the operating pin (121).
6. Window handle according to claim 5, characterized in that the constriction (132) is substantially cylindrical.
7. Window handle according to one of the claims 4 to 6, characterized in that the lug (117) is constructed in the form of a square pin.
8. Window handle according to one of the claims 1 to 7, characterized in that the receptacle (7, 107, 8, 108, 9, 109) for the operating pin (21, 121), as well as the arresting element (17, 117) is constructed in the form of a through opening (7, 107) within a core (5, 105) forming the neck part and that the receptacle (8, 108) has on its end region remote from the opening (39, 139) a larger diameter for receiving a locking cylinder (14, 114) of the locking or bolt unit (14, 114, 15, 115).
9. Window handle according to claim 8, characterized in that on the end of the locking cylinder (14, 114) remote from the arresting element (17, 117) is constructed a rotary knob or pushbutton (15, 115) acting on the arresting element (17, 117).
10. Window handle according to one of the claims 4 to 9, characterized in that on its lower end the locking or bolt unit (114, 115) has a pin (130) provided with an external thread and which can be fixed in an axially directed taphole (131) formed in the lug (117).
11. Window handle according to one of the preceding claims, characterized in that the core (5), operating pin (21) and sleeve (17) for forming a hole (13, 13', 20, 20', 22) for receiving a cross-pin, are provided with holes (13, 13', 20, 20', 22) orientable in mutually aligned manner in the installed state, the holes (20, 20') of the sleeve (17) having a larger longitudinal diameter than the holes (13, 13', 22) of the operating pin (21) and core (5).
12. Window handle according to claim 11, characterized in that the hole (13, 13', 20, 20', 22) for receiving the cross-pin in the installed state of the handle head (3) is not accessible from the outside.
13. Window handle according to one of the claims 1 to 12, characterized in that the fitting housing (23) has screw guides (28, 28'), which are closable on their top surface by a common cover plate (29, 29').
14. Window handle according to claim 13, characterized in that when the window handle (1, 101) is in the closed state, the cover plate (29, 29') is partly covered by the edge of the core (5, 105) of handle head (3, 103).
15. Window handle according to one of the claims 1 to 14, characterized by a stop ring (31) surrounding the lower end region (12) of core (5, 105) and which cooperates with in each case two diametrically facing spring elements (30, 30') in the fitting housing (23).
16. Window handle according to claim 15, characterized in that the outside of the stop ring (31) has four uniformly circumferentially distributed stop recesses (36a-d) and that on their sides facing the stop ring (31) the spring elements (30, 30') are provided with projections (33) constructed in a substantially complimentary manner with the recesses (36a-d), the projections (33) of the two spring elements (30, 30') diametrically facing one another.
17. Window handle according to claim 16, characterized in that the spring elements (30, 30') are constructed in the form of ring parts and on their sides diametrically facing the projections (33) have a resilient, outwardly and downwardly extending lug (34).
18. Window handle according to one of the claims 1 to 17, characterized by a cover or cover cap (37) which can be secured on the fitting housing (23) or lug (34).
19. Window handle according to one of the claims 1 to 18, characterized in that the window handle (1, 101) is made from metal.
20. Window handle according to one of the claims 1 to 18, characterized in that the window handle (1, 101) is made from plastic.
21. Window handle according to one of the claims 1 to 18, characterized in that the window handle (1, 101) is made from a metal-plastic combination.

Images