Strike plate assembly

Abstract

 A strike plate assembly, intended for building in a door or window frame, wherein the strike plate is provided with an opening for the spring bolt of a lock which is accomodated in a door leaf or window leaf, wherein the opening for the spring bolt is bounded on the leaf side by stop means for the spring bolt, which stop means are attached to the strike plate with the help of releasable securing means, wherein the assembly is further provided with continuously operating adjusting means, such as an eccentric cam for adjusting the position of the stop means with regard to the strike plate in the swinging direction of the leaf.

Description

[0001] The invention relates to a strike plate assembly intended for building in a door or window frame, comprising a strike plate with a bolt opening to a receiving space located within the frame for the spring bolt of a lock which is accommodated in a door leaf or window leaf.

[0002] It is known that the spring bolt of a catch-lock which is accommodated in a door or window leaf has an inclined side which is directed in the closing direction of the leaf, and a flat side which is directed against the closing direction. Because of the flat side it is achieved that whilst rotating the leaf in the frame, the spring bolt can be forced by the frame or the strike plate inwards into the catch-lock accommodated in the leaf, in order to be able to slide over the strike plate and to then shoot into the opening for the spring bolt in the strike plate. The flat surface of the spring bolt then ensures that the leaf can no longer swing back out of the frame unless the spring bolt is withdrawn into the leaf as a consequence of operating the door handle or window handle. The flat surface of the spring bolt abuts against an edge of the spring bolt opening in the strike plate or against a wall of a locking cup which is accommodated in the frame and covered by the strike plate.

[0003] It occurs regularly that in the closed situation of the leaf in the frame there is play between said flat side of the spring bolt and the portions of the strike plate and for the locking cup accomodated in the frame which portions cooperate with said flat side for detaining the spring bolt. The result is that the door or window leaf, under the influence of, for example, sudden differences in pressure, can start rattling in the frame. Such play can occur as a consequence of lock placing operations for new leaf/frame assemblies which have not been carried out accurately enough, but in particular if either the strike plate with possible locking cup or the (catch)-lock in the leaf has been replaced.

[0004] A known solution for this consists of a locking cup of which the portion of the edge of the actual cup which cooperates with the spring bolt is displaceable and is provided with an upper and a lower elongated hole extending in swinging direction, in which screw bolts are inserted which engage with their thread in tapping holes in the body of the locking cup intended for that purpose. The lower surface of the displaceable portion facing the locking. cup body is provided with a ridge which can engage in a ridged portion on an support surface on the locking cup body facing in the opposite direction. By loosening the screw bolts the displaceable portion can be lifted up slightly from the locking cup body, and can then be displaced in swinging direction one or several times the centre-to-centre distance of the ridges. After that the screw bolts can then be tightened again and the displaceable part which forms the stop means for the spring bolt is in a fixed position again. One drawback of this solution is that for carrying out adjustments the strike plate mounted on the locking cup will always have to be removed first. Another drawback is that the adjustments themselves, in particular displacing the stop means, are difficult to control.

[0005] It is now an object of the invention to improve this and for that purpose it provides a strike plate assembly as described in the attached claim 1. By providing stop means and adjusting means for them on the strike plate, the strike plate does not have to be taken out before an adjustment of the stop means is carried out. By the connection with the strike plate, which will always be included in a door or a window, an adjustable stop means for the spring bolt is always provided, despite the fact whether there is a locking cup or not.

[0006] Another drawback of the known locking cup is that the adjustment can only take place step by step which makes an optimal adjustment of stop means in relation to the spring bolt not realizable. According to the invention the adjusting means are therefore preferably arranged for continuous displacement of the stop means.

[0007] Moreover, the adjusting means preferably comprise releasable fixing means for fixing the adjusting means against effective movement. In this way it is avoided that in the course of time as a result of the frequent use of the window or the door in question, the adjusting means will move inadvertently and can then cause a shifting of the stop means with, as a consequence, the door or the window starting to rattle again in the frame.

[0008] In a first further development of the strike plate assembly according to the invention the adjusting means comprise an eccentric cam, which is rotatably arranged in a plane parallel to the strike plate. By rotating the eccentric cam a displacement of the stop means is caused. The stop means here preferably comprise a plate which is provided with a support surface which faces towards the leaf and is in engagement with the cam, and with a stop surface for the spring bolt which faces opposite the support surface.

[0009] Here the securing means preferably comprise at least one screw bolt and one slot arranged in the plate extending in a swinging direction, which is intended for guiding reception of the screw bolt, wherein the screw bolt is accommodated with its thread end in a nut retained against rotation and is accomodated with its head end in an opening arranged in the portion of the strike plate which faces the clear of the frame. When adjusting the stop means the screw bolt is first of all loosened a little, after which the plate can be slid along the strike plate by rotating the eccentric cam, until the correct position with regard to the spring bolt has been obtained, which can be established with the help of a "trial and error" method. Finally, the screw bolt can be fastened again, by which the plate is then secured in its position.

[0010] In order to simplify the construction it is preferable if the cam finds support on the one hand against the plate and on the other hand in an opening arranged in the portion of the strike plate facing the clear of the frame.

[0011] According to a second further development of the strike plate assembly according to the invention, the strike plate is provided on its side which is facing away from the clear of the frame with a portion which projects transversely therefrom, having a support plane for the adjusting means facing in the closing direction and an opposite facing plane which is intended to be substantially situated flush with the frame surface which is located transverse to the closing direction of the leaf. The presence of such a transversely projecting portion offers the possibility of allowing the adjusting means to be located in such a way that they can even be reached if the window or the door is closed.

[0012] In a preferred embodiment thereof the stop means comprise a stop member or stop block which is, by means of securing means, possibly after slightly loosening the securing means, slidably secured to the side of the strike plate which faces away from the clear of the frame, the stop member being provided with a tapped hole, in which the thread end of an adjusting screw bolt is accommodated, which screw bolt is provided near its head end with a support ring and is accommodated with its head in a hole arranged in the projecting portion. The securing means can, for example, be formed by a bolt-nut-assembly, the bolt of which being accessible from the clear of the frame. After the securing means have been loosened somewhat, the screw bolt is rotated, the door or window being closed, until it is noted that the stop means abut the flat surface of the spring bolt, after which the fixing means, if present, are operated, and subsequently the door or window can be opened again, after which the securing means can be operated again to secure the stop means on the strike plate. With its support ring the screw bolt continuously abuts the support surface and ensures that the head of the bolt remains accessible in the hole.

[0013] The securing means preferably comprise at least one nut, which rests against the side of the stop member facing away from the strike plate, the stop member being provided with at least one slot extending in a swinging direction, in which a screw bolt cooperating with the nut is accommodated, the head end of which is accommodated in an opening in the strike plate portion located in the clear.

[0014] It is especially advantageous if the planes of the stop member and the nut plate which face each other and cooperate with each other are mutually complementarily inclined in relation to the plane in which the portion of the strike plate which is located in the clear of the frame is situated, the inclined surface of the stop member having a normal vector with horizontal components which is directed against the closing direction of the leaf. In this way the stop member is restrained by wedging action in a direction in the closing direction.

[0015] In the strike plate according the invention the stop means preferably comprise surfaces on which the normal vector has a component directed in the closing direction and a component which is directed towards the clear of the frame whilst forming an inclined or a curved contact surface for the spring bolt. Owing to this the spring bolt will already be able to move vis- à-vis the lock and in the opening of the strike plate when moving the leaf in the frame. The play which would otherwise be necessary for preventing frictional forces between the flat surface of the spring bolt and the edge of the opening in the strike plate would impede the movement of the spring bolt too much, is thus superfluous. Because of this the stop means can be adjusted more tautly with regard to the spring bolt so that an almost completely rattle-free construction is possible.

[0016] It is further of advantage if the strike plate assembly is provided with a portion directed substantially perpendicular to the swinging direction of the leaf, having a stop surface facing against the closing direction of the leaf and located in the path of the spring bolt. This stop surface can also form above mentioned plane of the projecting portion of the strike plate, located substantially flush with the frame surface. This stop plane prevents the spring bolt from damaging the frame if the spring bolt cannot (or can no longer) move in or out of the lock in a smooth way. If the stop plane is formed by the projecting portion of the strike plate mentioned just now, that projecting portion simultaneously fulfils two functions, to wit that of stop plane and of support plane for the adjusting means.

[0017] According to a further preferred embodiment of the second development of the strike plate assembly according to the invention the transversely projecting portion extends on the abutting side of the frame with an end area to beyond the bottom of the receiving space or at least to beyond the swinging path of the spring bolt. Such an embodiment is advantageous if use is made of lipped doors. Lipped doors are doors which fall partly in and partly onto the frame in question, on the abutting side. With the part located on the abutting side they project sidewards in relation to the part which falls in the clear. With the measures according to the invention it is achieved that the adjusting screw bolt for the stop member can also be operated in a closed position of the lipped door.

[0018] In the case of lipped doors it will be desirable to save on the thickness of the part of the lipped door which falls in the clear. If the spring bolt is positioned approximately in the middle of the door, the receiving space for the spring bolt will have to be located fairly near the abutting side of the frame. The result can be that in an embodiment corresponding to the strike plate assembly according to the invention described above, there is insufficient possibility of adjusting the abutting side of the stop member in a direction against the closing direction. For this purpose the invention provides a solution in that the portion of the strike plate extending transversely has an opening which merges into the bolt opening of the strike plate, the stop member being displaceable in the opening in the closing direction and in the opposite direction. The opening provides the maximum adjustability in the case of lipped doors.

[0019] It is advantageous if the stop member also forms a locking cup for the spring bolt. On the side facing the leaf the stop member and/or the locking cup can form a stop plane which fits into said opening to form a stop or ascending surface.

[0020] The invention further provides an assembly comprising a strike plate according to the invention and a locking cup which are formed integrally with one another.

[0021] The invention will now be explained in more detail on the basis of three preferred embodiments shown in the accompanying drawing. The following is shown in the figures:

Fig. 1 is a partially cut-away view of a first preferred embodiment of the strike plate assembly according to the invention, as seen on the side thereof which is located in the opening in the frame;

Fig. 2 is a view according to arrow II of the strike plate assembly of fig. 1;

Fig. 3 is a cross section according to III-III of the strike plate assembly of fig. 1;

Fig. 4 is a view of a second preferred embodiment of the strike plate assembly according to the invention as seen on the side thereof which is located in the opening in the frame;

Fig. 5 and 6 are views of the stop plate of the strike plate assembly of fig. 4 and of the cam with which the stop plate can be displaced, respectively;

Fig. 7 and 8 are views of an example of an integrally formed locking cup and a strike plate according to the invention;

Fig. 9 is a perspective view of a part of a frame with a strike plate assembly according to the invention, suitable for lipped doors; and

Fig. 10 is an exploded view of the strike plate assembly of fig. 9.

[0022] The (portion of) strike plate 2 shown in figure 1 is mounted in a frame post 1 of a door. Here one has to imagine that the door leaf and the spring bolt projecting from the free edge of that door leaf swings about a vertical hinge axis which is parallel to the plane of the drawing from the open to the closed position in a direction as seen in the drawing from left to right. The strike plate has a rectangular bolt opening 3 for receiving the spring bolt, which opening is bounded on three sides by strike plate edges 4a, 4b and 4c and on the fourth side by a strike plate edge 4d. In the frame 1 suitable recesses are milled for receiving the strike plate 2 and the parts secured thereto as well as the recess or receiving space X for the spring bolt which is accessible via the opening 3 in the strike plate 2.

[0023] The side of the strike plate 2 which can be seen in figure 1 is in this patent application the side which is located in the clear of the frame. As can be seen, plate portion 16 is formed integrally with strike plate 2 and extends, as seen in the drawing, to the right and thus in the swinging area of the spring bolt. In the strike plate 2 two holes 36 for (recessed) screw heads 11 can be seen, which form the head of screw bolts 10, which, with a screw thread, (see fig. 2) cooperate with screw thread 12 in nuts 13. An adjustable stop plate 5 is clamped between the screw heads 11, the strike plate 2 and the nuts 13. This stop plate 5 is provided with two elongated holes 6 which here extend horizontally, and open into horizontal channels 19 on the side facing away from the strike plate 2. The elongated holes 6 form a passage for the screw bolts 10, whilst the channels 19 have such a width that the nuts 13 cannot rotate therein, but can slide in there. In the position as shown in figure 1 the spring bolt stop plane 18 of the stop plate 5 is located in one plane with the edge 4d of the opening 3 in strike plate 2, which plane is perpendicular to the plane of the drawing. The stop plane 18 is preferably slightly curved or inclined (for example 5°) to guide the spring bolt as it were in the receiving space, with all the previously mentioned advantages thereof.

[0024] At the opening side of the frame 1, that is to say the side towards which the door swings open, the plate portion 16 is provided with a perpendicularly turned flange 17, which connects with its edges to the milled recess in the frame 1. A hole 37 is arranged in the flange 17, in which the head 9 of the adjusting screw bolt 8 is received in a recessed way. This adjusting bolt 8 is threadably received in screw bore 7 which is arranged in the stop plate 5. The flange 17 forms a stop plane for the door bolt when it bangs against the frame 1.

[0025] The head 9 of the adjusting bolt 8 is always provided with the shoulder ring 20 which rests against the inside of the flange 17 and is accommodated in figure 1 in a complementary recess 21 in the stop plate.

[0026] When it is desirable to restrict the range of movement of the spring bolt in the opening 3 in the strike plate 2 in a closed position of the door in order to prevent the door from rattling, the screws 10 are unscrewed slightly, this taking place when the door is open. Then the door can be closed, after which the spring bolt will then be in the opening 3. Subsequently the screw head 9 is rotated and thus also the adjusting screw 8, as a result of which the stop plate 5 will tend to move in a continuous way in the direction A, which is made possible because the stop plate 5 is no longer clamped unmovingly against the strike plate 2. Due to the elongated holes 6 the screw bolts 10 do not impede this movement of the stop plate 5. The end boundaries of the elongated holes 6 thus prevent the stop plate 5 from being displaced too far. As a result of this displacement in the direction A the stop side 18 of the stop plate 5 will move to the left vis-à-vis the edge 4d of the opening 3 in the strike plate 2 and thus take over its function. If the installer notices that the stop side 18 has abutted the flat side of the spring bolt, he can secure the position of the adjusting screw 8 with means not shown and then open the door to fasten the screws 10 again, in order to ensure that the stop plate 5 is again clamped against the lower side of the strike plate 2 via the nuts 13.

[0027] In addition it is advantageous if, as is shown in figure 3, the planes 14, 15 of the bottoms of the channels 19 and the nuts 13 facing each other are complementarily inclined (preferably 3°), in such a way that a movement of the stop plate 5 in the direction B results in the head 11 of the screw bolt 10 being pressed tighter against the plate portion 16 as a result of wedging action, with as a consequence that the stop plate 5 is clamped even tighter against the plate portion 16. In the opposite direction the shoulder ring 20 which abuts the inner side of the flange 17, sees to it that the stop plate is held in place.

[0028] The strike plate 102 of the second preferred embodiment shown in the figures 4 and 5 corresponds for the greater part with strike plate 2 of figure 1. Here, too, there is a rectangular opening 103, bounded by the sides 104, 104b, 104c and 104d. On the plate portion 116 a stop plate 105 is held clamped tight by means of two screw bolts 110 and nuts cooperating with them (not shown), the shafts of the screw bolts 10 being again accommodated in elongated holes 106, which are comparable to holes 6, shown in figure 1. The nuts are here kept accommodated in channels, which are comparable to the channels 19 in the stop plate 5 of figure 1.

[0029] The difference with the construction according to the figures 1-3 is formed in that, as can be seen clearly in figure 5, the stop plate 105 is provided with a recess 122 which is open towards the rear of the strike plate 102 and in the direction opposed to the direction A. The recess 122 is bounded upwards, downwards and in the direction A by a wall 123, which has a curved course. The bottom of the recess 122 is provided with an elongated hole 124 which runs parallel to the elongated holes 106. The recess 122 is arranged for receiving an eccentric cam 125 formed by a ring body 126 to which a radially projecting portion 127 with an edge 128 is integrally formed, which edge widens in a circumferential direction from the centre of the ring 126. The ring 126 is also provided with two diametrally opposing slits 129, intended for engagement by a fork-shaped screw driver. The ring 126 further comprises a bore 130 with a shoulder 131. This bore 130 is flush with the elongated hole 124 and serves to receive a lock bolt 132, the thread 133 of which is engaged by a nut plate 134. This nut plate 134 is accommodated in a channel 135 located on the same side as the channels 106, in the bottom of which the elongated hole 124 opens, which channel 135 has width dimensions such that the nut plate 134 cannot rotate therein.

[0030] When, in the case of the embodiment of the figures 4, 5 and 6, the displacement of the stop side 118 of the stop plate 105 is necessary, then, with the door open, the securing screws 110 are again unscrewed slightly, the lock bolt 132 is then likewise unscrewed slightly and then the ring 126 and therewith the edge 128 is rotated with the help of the fork-shaped screwdriver. The edge 128 runs along the edge 123 in particular the portions thereof which face against the direction A and forces the edge 123 and therewith the stop plate 105 and consequently the stop side 118 in a stepless way in the direction A, because the ring 126 is held in a non-displaceable way in the opening in the plate portion 116 made for that purpose. All this takes place with the door open. When the stop side 118 has reached the desired position the lock bolt 132 is tightened to fasten the ring 126 into its rotated position.

[0031] Then the securing bolts 110 are fastened again. The stop side 118 is preferably slightly inclined or curved in order to allow an even tighter adjustment.

[0032] In the figures 7 and 8 an alternative embodiment of the strike plate according to the invention is shown, in which the strike plate 202 is integrally formed with a locking cup 201. This locking cup, formed by the circumferential wall 238 and the bottom 239 has a dimension such that it is suitable for receiving a spring bolt as well as a deadlock. The opening 203 in the strike plate 202 extended accordingly with regard to the openings 3 and 103 in the embodiments of the strike plate according to the invention described above.

[0033] The assembly of the strike plate 202 and the locking cup 201 is integrally formed by deep drawing, after which the screw holes 240, with which the assembly of locking cup and the strike plate can be attached in a frame, the holes 236 for the screws with recessed heads of a stop plate not shown (which holes 260 are formed corresponding to the holes 36 and 136 of the embodiments described above of the strike plate according to the invention) and the hole 237 which corresponds with hole 137 of the strike plate of the figures 4-6 are drilled. As has already been said the stop plate is not shown here, the object being, however, that a stop plate corresponding to the stop plate 105 of the figures 4-6 can be arranged on the side of the plate portion 216, using the same securing means and the same adjusting and moving means. In order to allow displacing of the stop plate (not shown) in the direction A, in particular to enable a movement of the left side of the stop plate, as seen in the drawing, beyond the edge 204d of the opening 203, a rectangular opening 241 is likewise arranged in the circumferential wall 238 of the locking cup 201.

[0034] With the embodiment of the figures 7 and 8 not only are the adjusting operations for the stop for the spring bolt are simplified considerably but also the installation operations for the part of the door or window closing which is accommodated in the frame.

[0035] In figure 9 a jamb 301 of a wooden doorframe is shown. On the side where the not shown door can be swung open and closed a strike plate assembly 302 according to the invention is arranged. The strike plate assembly 302 comprises a strike plate 302' which is formed as an angle profile with a strike plate leg 360 which is located in the clear D of the frame and a strike plate leg 361 which is located in the abutting side C of the frame.

[0036] A spring bolt opening 303 and a deadlock opening 350 are made in the strike plate leg 360. The strike plate part 360 is secured by means of screws 340 to the wooden jamb of the frame.

[0037] The strike plate assembly 302 more or less corresponds with that of the figures 1-3 in that in here, too, an adjusting screw is accommodated, the head 309 of which can be seen in figure 9. This adjusting screw is, however, located at a greater distance from the edge between the clear and the abutting side of the frame than is the case in the figures 1-3. The distance between the adjusting screw 309 to that edge is larger than the distance of the vertical outer edge of the lipped door which belongs to the frame shown. This outer edge of the lipped door is shown by the vertical line Z-Z. So as to offer support to the adjusting screw for the stop member 305, the strike plate leg 361 is extended to well beyond the vertical line Z-Z.

[0038] In figure 10 the strike plate assembly 302 is shown more clearly. The stop plate 305 here has more the appearance of a block, with sidewardly projecting parts in which the elongated holes 306 are arranged, which allow the screws 310 to pass through, which, in conjunction with the nut plates 313, secure the stop block 305 to the strike plate leg 360 in a way which corresponds to that of the embodiments according to figures 1-3. The nut plates 313 are held against rotation by the boundaries of the channels 319.

[0039] Now it is notable that the stop block 305 also forms a locking cup 390, the upper edge 391 of which projects somewhat from the rest of the stop block 305. With this projecting edge 391 the stop block 305 fits in the spring bolt opening 303. On the side perpendicular to that, the side which faces against the closing direction S, the locking cup 390 is provided with a support plane 394 and an elevated part 393. In the support plane 394 the adjusting screw 308 is accommodated in a manner corresponding to that of the embodiment of the figures 1-3, which adjusting screw again contains a head 309 and a shoulder ring 320 located nearby it. The projecting part 393 closely fits with its edge 392 in the opening 370 in strike plate leg 361, which opening 370 merges smoothly in the spring bolt opening 303 in strike plate leg 360. Because of the part 390 projecting with regard to the support plane 394, the receiving space X formed by the stop block 305 can be displaced in a direction against the closing direction S, to wit the direction T, partially to beyond the strike plate leg 361. The abutting side 318 for the spring bolt can therby also come to rest in front of the corner edge between the strike plate legs 360 and 361, which is advantageous in the case of lipped doors, the spring bolt of which arrive close to the transition edge between the abutting side and the clear side of the frame. Here it is advantageous that the portion 393 projecting in the direction T also forms a stop plane 395 for the spring bolt. The abutting side 318 can also be curved or inclined (for example 5° with regard to a vertical plane which is parallel with the door in a closed position), as has been described above.

[0040] Just as is the case in the embodiment of the figures 1-3, the "bottoms" of the channels 319 and the planes of nut plates 313 which are to be brought into engagement with them are inclined, so that the stop block 305 is restrained by wedging action in the closing direction. This is particularly advantageous in this embodiment, because when slamming the door the spring bolt can hit directly against the stop block itself.

[0041] The head 309 of the adjusting screw 308 fits in hole 337 when the projecting part 390 of the stop block 305 fits in the opening 370. After the screws 310 have been unscrewed slightly, as described above, the adjusting screw 308 can, in a closed position of the lipped door, be rotated with a screwdriver on the door side, the screw with shoulder ring 320 being supported against the inside of the strike plate leg 361 and by rotation the stop block 305 being displaced in the direction S or the direction T. Displacing in the direction S is possible because the dimensions (as seen in direction S) of the edge 391 are chosen such that sufficient displacement is possible within the bolt opening 303.

Claims

1. A strike plate assembly, intended for building in a door or window frame, comprising a strike plate with a bolt opening to a receiving space located within the frame for the spring bolt of a lock which is accomodated in a door leaf or window leaf and stop means for bounding the receiving space for the spring bolt on the leaf side, which stop means are attached with the help of releasable securing means to the strike plate, and adjusting means for adjusting the position of the stop means in the swinging direction of the leaf with regard to the bolt opening in the strike plate.

2. Strike plate assembly according to claim 1, wherein the adjusting means are mounted for continuous displacement of the stop means and/or preferably the adjusting means comprising releasable fixing means for fixing the adjusting means against effective movement.

3. Strike plate assembly according to claim 1 or 2, wherein the adjusting means comprise an eccentric cam which is rotatably arranged in a plane parallel to the strike plate, wherein the stop means preferably comprise a plate which is provided with a support plane which faces towards the leaf and is in engagement with the cam, and with a stop plane for the spring bolt, which is facing opposite the support plane.

4. Strike plate assembly according to claim 3, wherein the cam is supported on the one hand against the plate and is supported on the other hand in an opening arranged in the portion of the strike plate facing the clear of the frame.

5. Strike plate assembly according to claim 1 or 2, wherein on its side which is facing away from the clear of the frame the strike plate is provided with a portion which projects transversely therefrom, having a support plane facing in the closing direction for the adjusting means and an opposite facing plane which is intended to be situated substantially flush with the frame surface on the opening side which is parallel to the leaf, the stop means comprising preferably a stop member or a stop plate, which is, with the help of the securing means, possibly after releasing the securing means, slidably secured to the side of the strike plate which faces away from the clear of the frame, wherein the stop member is provided with a tapped hole, in which the thread end of a screw bolt is accomodated, which screw bolt is provided near its head end with a support ring and is accomodated with its head in a hole arranged in the projecting portion.

6. Strike plate assembly according to claim 4 or 5, wherein the securing means comprise at least one screw bolt as well as at least one elongated hole arranged in the stop member and extending in the swinging direction, which is intended for guiding reception of the screw bolt, wherein said screw bolt is accomodated with its thread end in a nut which is retained against rotation and with its head end in an opening arranged in the portion of the strike plate which faces the clear of the frame, wherein preferably the surfaces of the stop member and the nut facing each other and cooperating with each other are mutually complementarily inclined with regard to the plane in which the portion of the strike plate which is located in the clear of the frame is situated, and the normal vector on the inclined surface of the plate has a horizontal component which is directed in the closing direction of the leaf.

7. Strike plate according to any one of the preceding claims, wherein the stop means comprise surfaces, on which the normal vector has a component which is directed in the closing direction and a component which is directed towards the clear of the frame, whilst forming an inclined or a curved support surface for the spring bolt.

8. Strike plate assembly according to any one of the preceding claims, wherein the strike plate is provided with a portion which is directed substantially perpendicular to the swinging direction of the leaf, and is provided with a stop surface which faces away from the closing direction of the leaf and is located in the path of the spring bolt.

9. Strike plate assembly according to any one of the claims 5-8, wherein the transversely projecting portion extends with an end area on the abutting side of the frame to beyond the bottom of the receiving space or at least to beyond the swinging direction of the spring bolt.

10. Strike plate assembly according to claim 5 and 9, wherein the hole is situated in the area of the end area of the transversely projecting portion of the strike plate.

11. Strike plate assembly according to claim 9 or 10, wherein the transversely extending portion of the strike plate has an opening which merges into the bolt opening in the strike plate, wherein the stop member is movable in the closing direction and in the opposite direction in the opening.

12. Strike plate assembly according to claim 9, 10 or 11, wherein the stop member further forms a locking cup for the spring bolt.

13. Assembly according to any one of the preceding claims, and a locking cup which forms the receiving space and is formed integrally with the strike plate, wherein preferably the locking cup also forms a receiving space for a deadlock.

Drawing