EP2685035A2 - Switching nut for a lock or a striker box - Google Patents

Abstract

The nut has a square aperture for insertion of a square of a presser. Flat metal sheet portions are firmly connected to a switching nut component with each other. The component comprises a flat metal sheet portion formed as nut levers (5) with a square opening portion with orthogonally running sides. A recess for lateral insertion of bearing sections (6, 7, 8) i.e. round bolts, is provided at the sides of the opening portion and opened to the opening portion. A slot for lateral insertion of the bearing sections into the recess is provided at the bearing sections. An independent claim is also included for a method for assembly of a switching nut.

Description

The invention relates to a sliding nut for a lock, with a square opening for inserting a square of a pusher, according to the preamble of claim 1.

Nuts for locks or counter boxes have long been known in practice. A Schaltnuss is a component which is provided in a switch lock / counter box and connected via a square with a pusher. By actuating the pusher the Schaltnuss is moved, are coupled to the various components of the lock or counter box. About the movement of the Schaltnuss can then Schließbzw. Initiate or control the opening movement of the lock / counter box.

Known nuts are usually produced by casting. These are castings. For the production of such cast-iron nuts corresponding tools are required, which are relatively expensive. This is particularly disadvantageous if a particular lock is only to be produced in small numbers.

From the DE 472 721 a split locknut is known in which a two-piece nut lever and the construction of the shift nut, a plurality of lock washers are provided. The nut lever and the individual lock washers consist of flat sheet sections, which are connected to each other via two bolts. The disk package is riveted over the bolts. For the bolts corresponding bolt openings are provided in the individual flat sheet sections. At least the two outer lock washers have slots for insertion of the bolts. To build the Schaltnuss assembly a variety of flat sheet metal sections are required. This variety of disks required to construct the Schaltnuss assembly leads to an increase in manufacturing costs.

Object of the present invention is therefore to provide a Schaltnuss of the type mentioned for a lock or a mating box available, which can be easily and inexpensively.

To achieve the above object, the invention provides that at least two sides of the square opening portion of the nut lever respectively a recess opening into the square opening region is provided for the lateral insertion of a bearing section and that a corresponding slot for lateral insertion of the bearing section into the recess is provided on the bearing section.

So that the square of the trigger can actuate the nut lever, the nut lever has the aforementioned square opening portion, which is part of the square opening of the Schaltnuss assembly. The square opening region of the nut lever ultimately has four sides running at right angles. To connect the nut lever to the bearing sections, a recess for lateral insertion of a respective bearing section is provided on preferably three sides. To the recess corresponds to a slot in the central region of each bearing portion, so that the bearing portion can be inserted via the slot in the respective recess of the respective side of the square opening portion from the side.

By realizing the openings opening into the square opening region, it is possible not to insert the bearing sections from above through corresponding insertion openings into the preassembled subassembly, but to insert them from the side or to remove the entire subassembly starting from the bearing sections. In the inventive solution, it is not necessary that the bearing sections are designed as round bolts, which are provided only for fastening purposes. In the invention, the bearing sections on the pure attachment function of the nut lever and the individual discs can perform an additional, other function, namely a construction function of the Schaltnuss assembly. By appropriate projections or slots on the bearing sections, it is possible that the nut lever and the lock washers do not rest directly on each other, but are spaced from each other via the bearing sections. In this way, preferably results in each case a contact-free spacing of the lock washers to the nut lever. This is possible in particular because the bearing sections are not inserted through the preassembled disk pack, but rather are inserted laterally over the square opening area of the nut lever or the square opening as a whole. In this way, supplemental slices, which are necessary in the prior art for Schaltnuss structure omitted. The invention thus offers the significant advantage that the number of parts necessary for the construction of the Schaltnuss assembly can be reduced.

In the case of the inventive switch nut assembly, the flat plate section designed as a nut lever ultimately represents the functional basic element of the switch nut assembly. Appropriate switching and / or running surfaces, hooks, projections, interventions or the like can be provided on it or on its outer circumference. in order to initiate corresponding motion sequences in the switch lock during movement of the nut lever or to allow components, such as springs, to be acted upon at the shift nut. Furthermore, in the region of the nut lever, openings, elongated holes or scenes for fastening or for actuating further components may be provided.

Next, the Schaltnuss assembly has at least two, in particular three or four bearing sections, which are preferably also flat sheets or sections. The bearing sections are used to build the Schaltnuss assembly in the transverse plane, ie perpendicular to the plane of the nut lever. It is so that the bearing sections are positively held on the nut lever.

Furthermore, the Schaltnuss assembly has on both sides of the nut lever each have a lock washer, which are placed on the end of the bearing sections and connected thereto. As a result, the inventive Schalttsnuss assembly in the aforementioned preferred embodiment of the invention then only six components, namely a nut lever, three bearing sections and two backup or bearing washers.

Incidentally, the embodiment according to the invention makes it possible, in a very simple manner, to change the sliding-nut assembly or to adapt it to another intended use. For this purpose, only one adapted to the other function or use nut lever must be used, while the remaining components can be used in the same form with even identical structure on. Ultimately, this significantly reduces the manufacturing costs.

The individual securing or bearing discs also each have a square opening area with four sides running at right angles. On each of the sides, a recess for connecting a bearing section is likewise provided, wherein a corresponding receiving area for receiving the securing or bearing disks is provided on the bearing section. Thus, the square opening portion of the nut lever corresponds at least substantially the square opening area of the respective safety or bearing washers. Important in this context is that the four right angles extending sides of the square opening portion of the nut lever and the backup or bearing discs of the relevant dimensions match each other, so that when a square of a pusher, the forces transmitted via the pusher forces on all relevant components of Schaltnuss assembly to be transferred.

In order to achieve a sufficient fixation of the backup or bearing discs in the pre-assembly of the invention Schaltnuss assembly, the end provided receiving areas are provided on the bearing sections with an outer insertion through which the respective backup or bearing disc can be inserted into the receiving area , The receiving area is then designed such that the securing or bearing disc after insertion into the receiving area and before the subsequent joining on all sides, i. on all four sides, engaged behind and thus fixed.

In the embodiment of the invention, the Schaltnuss assembly is such that preferably each of the bearing portions protrudes with its slot opposite the edge in the square opening of the nut lever. The bearing portion is thus arranged with its flat plane transverse to the associated side of the square opening area. This refers to the side on which the recess of the square opening region is provided for the bearing section. In this case, then corresponds to the width of the recess in the nut lever at least substantially the thickness of the bearing portion. This arrangement of the bearing portion to the respective side of the square opening region ensures that ultimately only one such incision in the respective side is required for the recess, which corresponds approximately to the thickness of the bearing portion. This has the consequence that the remaining areas of the respective side are still sufficiently large to be able to absorb the forces occurring on the square of the pusher when pressed well. Such a force absorption could then be called into question if the bearing section would ultimately not be arranged at right angles to the relevant side but parallel to it, ie a comparatively large recess in the nut lever would be required for the bearing section. The inventive arrangement of the bearing sections on the nut lever can be found, as in experiments, provide a sliding nut assembly that can withstand the highest loads.

In a particularly preferred embodiment of the invention, at least one joining projection is provided on the peripheral edge, which projects into the square opening region of the nut lever. In each case joining projections are preferably provided in the region of the slot and in the region of the receiving areas. The joining projections are ultimately material projections whose material serves for joining in the direction of the slot for the connection of the relevant bearing section to the nut lever and on the other hand in the direction of the receiving areas for connecting the bearing section to the respective securing or bearing disc.

From the basic structure, it is otherwise the case that the individual securing or bearing discs and the nut lever are arranged parallel to each other, wherein the nut lever is spaced from the adjacent backup or bearing disc over a portion of the bearing portion.

Incidentally, in the present invention, it is such that the flat plate portions are formed as stamping or laser parts which can be easily and inexpensively manufactured.

Finally, the invention makes it possible to realize a form of the sliding-nut assembly that is at least essentially mirror-symmetrical with respect to the level of the nut lever, so that the inventive sliding nut can be used both for a right-hand lock and for a left-hand lock or counter-lock.

Moreover, the present invention relates to a method for mounting a Schaltnuss of the aforementioned type. The method is characterized in that the Schaltnuss is first pre-assembled. For this purpose, the bearing sections are inserted into the nut lever. Subsequently, the backup or bearing discs are inserted into the receiving areas of the bearing sections. In this way, a preassembled Schaltnuss. This preassembled unit is then inserted into a joining tool. This joining tool has a joining opening, which opens into the square opening of the shift nut. A joining square mandrel is then driven through the square opening via the joining opening. The material of the joining projections is then displaced, which leads to the joining of the individual components together.

Fig. 1

eine Darstellung eines eine erfindungsgemäße SchaltnussBaugruppe aufweisenden Gegenkastens.

Fig. 2

eine perspektivische Ansicht einer erfindungsgemäßen Schaltnuss-Baugruppe im fertig montierten Zustand,

Fig. 3

eine Draufsicht auf die einzelnen Baugruppenelemente der erfindungsgemäßen Schaltnuss-Baugruppe,

Fig. 4

eine perspektivische Darstellung eines Nusshebels mit drei anzusetzenden Lagerabschnitten,

Fig. 5

eine perspektivische Darstellung des Nusshebels mit eingesetzten Lagerabschnitten,

Fig. 6

eine perspektivische Darstellung des Nusshebels aus Fig. 5 mit anzusetzenden Sicherungs- bzw. Lagerscheiben,

Fig. 7

eine perspektivische Darstellung einer vormontierten Schaltnuss-Baugruppe,

Fig. 8

eine Draufsicht auf die vormontierte Schaltnuss-Baugruppe aus Fig. 7,

Fig. 9

eine Seitenansicht der vormontierten Schaltnuss-Baugruppe aus Fig. 7,

Fig. 10

eine Draufsicht auf die fertig montierte Schaltnuss-Baugruppe entsprechend Fig. 2 und

Fig. 11

eine Draufsicht auf eine andere Ausführungsform einer erfindungsgemäßen Schaltnuss-Baugruppe.

Hereinafter, embodiments of the invention will be explained with reference to the drawing. All described and / or illustrated features, alone or in any combination form the subject of the present invention, regardless of their combination in the claims or their dependency. It shows

Fig. 1

a representation of a invention a SchaltnussBaugruppe having counter box.

Fig. 2

a perspective view of a Schaltnuss assembly according to the invention in the assembled state,

Fig. 3

a plan view of the individual assembly elements of the invention Schaltnuss assembly,

Fig. 4

a perspective view of a nut lever with three bearing sections to be applied,

Fig. 5

a perspective view of the nut lever with inserted bearing sections,

Fig. 6

a perspective view of the nut lever Fig. 5 with securing or bearing washers to be attached,

Fig. 7

a perspective view of a preassembled Schaltnuss assembly,

Fig. 8

a plan view of the preassembled Schaltnuss assembly from Fig. 7 .

Fig. 9

a side view of the preassembled Schaltnuss assembly from Fig. 7 .

Fig. 10

a plan view of the finished assembled Schaltnuss assembly accordingly Fig. 2 and

Fig. 11

a plan view of another embodiment of a Schaltnuss assembly according to the invention.

In Fig. 1 exemplified designed as a counter-box lock 1, which has a pusher 2. The pusher 2 engages with a square not shown in detail in a square opening 3 a in Fig. 1 Not shown on a sliding nut. On the training of the switch lock, moreover, it does not matter crucially here. Basically it can be a lock, as it is for example from the DE 197 27 364 C1 or DE 10 2004 009 973 B4 is known.

It is now essential that the shift nut is ultimately made of a plurality of flat sheet metal sections which are fixedly connected to each other to a Schaltnuss assembly 4. The Schaltnuss assembly 4, as such in Fig. 2 is shown, has as a functional component and for coupling with other components of the lock 1, a nut lever 5, three bearing sections 6, 7, 8 and two lock washers 9, 10. The individual components are in Fig. 3 shown. All the above-mentioned components are flat sheet metal sections which have been produced, for example, by stamping / laser cutting. It is therefore ultimately punched or lasered flat sheet metal parts.

The bearing sections 6, 7, 8, which are identical in construction, are, as will be discussed in more detail below, arranged in a transverse plane perpendicular to the plane of the nut lever 5 and, moreover, are held positively in the transverse plane on the nut lever 5. On both sides of the nut lever 5 is in each case one of the mutually identical locking washers 9, 10, which is connected to the end of the individual bearing sections 6, 7, 8.

The nut lever 5 has a square opening region 11 with four sides 12, 13, 14, 15 extending at right angles. On three of the sides, namely on the sides 12, 13 and 14, a recess 16 is provided in each case, which opens into the square opening region 11. Each of the recesses 16 serves to insert one of the bearing sections 6, 7, 8. For this purpose, a slot 17 corresponding to the recess 16 is provided on each of the bearing sections 6, 7, 8. The dimensions of the recess 16 and the slot 17 are selected such that, after insertion of the respective bearing section, an at least substantially play-free arrangement or mounting of the respective bearing section on the nut lever 5 results.

How to continue Fig. 3 shows, each of the backup or bearing washers 9, 10 also has a square opening portion 18 with four mutually perpendicular sides 19, 20, 21, 22. Also in the backup or bearing discs 9, 10, a recess 23 is provided in each case on three of the four sides, namely on the sides 19, 20 and 21. Each of the recesses 23 serves for the connection or for insertion of a corresponding bearing section 6, 7, 8. For this purpose, a receiving area 24, 25 is provided on each of the bearing sections 6, 7, 8 at the end, which accommodates the respective securing or bearing disks 9 , 10 serves. Each of the receiving areas 24, 25 has an insertion opening 26, via which the respective securing disk 9, 10 can be inserted into the respective receiving area 24, 25. After insertion into the receiving area 24, 25, the respective securing or bearing discs 9, 10 are engaged on all sides, ie on all four sides. Accordingly, in the end, despite the respective insertion opening 26, four surfaces running at right angles to each other are provided in the receiving region 24, 25.

How to get out Fig. 3 shows, each of the bearing sections 6, 7, 8 at the edge opposite the slot 17 at its peripheral edge 27 on a joining projection 28. Furthermore, in the region of the receiving regions 24, 25, joining projections 29 are located opposite the receiving regions 24, 25 on the marginal edge 27. The joining projections 28, 29 are each provided with run-on slopes, preferably in both directions. Incidentally, the joining projections 28, 29 protrude, as is the case in particular Fig. 8 results in the square opening 3 in the pre-assembled state.

The nut lever 5 itself has a contouring which is adapted to the respective lock purpose or the functions to be fulfilled. This can fundamentally vary considerably. In the illustrated embodiment, the nut lever 5 has a freewheeling area 30 for a mandrel. Within the freewheeling area 30 is a Entsperrnase 31 for the aforementioned mandrel. Furthermore, the nut lever 5 has an opening 32 for arranging a roller bearing. Furthermore, the nut lever 5 approximately opposite the opening 32, a nose 33 and approximately opposite the nose 33, a further opening 34 for the arrangement of a spring.

The assembly of the Schaltnuss assembly 4 will be described below with reference to Fig. 4 to 10 explained. First, the three bearing sections 6, 7, 8 the nut lever 5 supplied, as in Fig. 4 is shown. Then, the bearing portions 6, 7, 8 are inserted via the respective slot 17 in the respective recess 16 of the square opening portion 11 of the nut lever 5, as shown in FIG Fig. 5 is shown. Subsequently, the two securing or bearing discs 9, 10 are supplied from above or below ( Fig. 6 ) and in the respective receiving areas 24, 25 of the bearing sections 6, 7, 8 used. It then results in the Fig. 7 to 9 illustrated, preassembled unit, in which on the one hand the bearing sections 6, 7, 8 are already held relatively firmly on the nut lever 5, while the backup or bearing discs 9, 10 due to the all-round Hiriter handle in the receiving areas 24, 25 relatively firmly and securely the bearing sections 6, 7, 8 are held. As can be seen in particular Fig. 8 results, the joining projections 29 and the joining projections 28, not shown, protrude into the square opening 3.

The preassembled unit is then inserted into a not shown joining tool in which the preassembled unit is fixed accordingly. The joining tool has a joining opening, which opens into the square opening 3 of the preassembled structural unit. The joint opening is continuous. Subsequently, through the joining opening and the square opening 3, a square-shaped joining mandrel corresponding to the dimensions of the square opening 3 is driven through. The square mandrel displaces the material of the joining projections 28, 29 in the direction of the slots 17 or the receiving areas 24, 25, so that the individual components are joined together. Subsequently, the results in the Fig. 2 and 10 Since the dimensions of the square opening region 11 of the nut lever 5 correspond to the dimensions of the square opening regions 18 of the two securing or bearing disks 9, 10, the sides 12, 13, 14, 15 on the one hand and 19, 20, 21, 22 on the other hand, all forces acting on the pusher 2 on the Schaltnuss assembly 4 record, especially since the recesses 16, 23 are relatively narrow and remain on the sides, which are provided with a recess, relatively large areas for receiving the forces.

Fig. 11 another embodiment of a Schaltnuss assembly according to the invention is shown, in the deviating from the in Fig. 11 illustrated embodiment, not three bearing sections 6, 7, 8 are provided, but are provided in the ultimately four bearing sections. There, opposite the bearing section 7, a further bearing section is provided. Thus, 4 bearing sections are provided on all four longitudinal sides of the square opening.

Incidentally, the Schaltnuss assembly 4 is at least substantially mirror-symmetrical to the plane of the nut lever 5, so it can be arranged and used right or left around. <B> LIST OF REFERENCES </ b> 1 lock 31 unlocking projection 2 handle 32 opening 3 Square hole 33 nose 4 Switching nut assembly 34 opening 5 nut lever 6 bearing section 7 bearing section 8th bearing section 9 Securing or bearing washers 10 Securing or bearing washers 11 Square opening area 12 page 13 page 14 page 15 page 16 recess 17 slot 18 Square opening area 19 page 20 page 21 page 22 page 23 recess 24 reception area 25 reception area 26 insertion 27 edge 28 mating projection 29 mating projection 30 Freewheel area

Claims (14)

A locking nut for a lock (1) or a counter-box, having a square opening (3) for inserting a square of a pusher (2), wherein a plurality of flat plate sections fixedly connected to a pusher assembly (4) are provided, wherein the pusher Assembly (4) as a nut lever (5) with square opening region (11) with four right angles extending sides (12, 13, 14, 15) formed flat plate portion, at least one as a backup or bearing disc (9, 10) formed flat plate portion and at least two bearing sections (6, 7, 8) for mounting the nut lever (5) and the lock washers (9, 10),
characterized,
a recess (16) opening into the square opening region (11) is provided on at least two sides (12, 13, 14) of the square opening region (11) for the lateral insertion of a bearing section (6, 7, 8) and that 6, 7, 8) has a corresponding slot (17) for lateral insertion of the bearing portion (6, 7, 8) in the recess (16) is provided. A shift nut according to claim 1, characterized in that the nut lever (5) and the lock washer (9, 10) are spaced apart from each other via the bearing sections (6, 7, 8). Steering nut according to claim 1 or 2, characterized in that three or four bearing sections (6, 7, 8) are provided. Steering nut according to one of the preceding claims, characterized in that the bearing sections (6, 7, 8) are formed as flat sheet metal sections. Steering nut according to one of the preceding claims, characterized in that the bearing sections (6, 7, 8) are arranged in a transverse plane perpendicular to the plane of the nut lever (5) and are held in a form-fitting manner on the nut lever (5). A shift nut according to one of the preceding claims, characterized in that a securing or bearing disc (9, 10) is connected to the bearing sections (6, 7, 8) on each side of the nut lever (5). In that the bearing section (6, 7, 8) is arranged in the recess (16) in such a way that its plane perpendicular to the associated side of the square opening region (FIG. 12). Steering nut according to one of the preceding claims, characterized in that the securing or bearing disc (9, 10) has a square opening region (18) with four sides (19, 20, 21, 22) running at right angles, with two, preferably three or four sides (19, 20, 21) each have a recess (23) for inserting a bearing portion (6, 7, 8) is provided and that on the bearing portion (6, 7, 8) has a corresponding receiving portion (24, 25) for receiving the backup or bearing disc (9, 10) is provided. Schaltnuss according to one of the preceding claims, characterized in that the receiving region (24, 25) has an insertion opening (26) for inserting the securing disc (9, 10) and that the Sicherungsbzw. Bearing disc (9, 10) after insertion into the receiving area (24, 25) and before the final joining on all sides in the receiving area (24, 25) is engaged behind. Steering nut according to one of the preceding claims, characterized in that the bearing portion (6, 7, 8) with its the slot (17) opposite the peripheral edge (27) in the square opening (3) protrudes. 5. Steering nut according to one of the preceding claims, characterized in that the width of the recess (16) in the nut lever (5) corresponds at least substantially to the thickness of the bearing section (6, 7, 8). Steering nut according to one of the preceding claims, characterized in that at the peripheral edge (27) in the region of the slot (17) and / or at least one receiving area (24, 25) a joining projection (28, 29) protruding into the square opening (3) is provided. Schaltnuss according to one of the preceding claims, characterized in that the nut lever (5) and / or the bearing sections (6, 7, 8) and / or the securing or bearing disc (9, 10) are formed as a punching or laser part / is. A method for assembling a sliding nut according to any one of the preceding claims, wherein the sliding nut by inserting the bearing portions (6, 7, 8) in the square opening portion (11) of the nut lever (5) and inserting the washers (9, 10) in the receiving areas (24, 25) of the bearing sections (6, 7, 8) is preassembled, wherein the preassembled Schaltnuss is inserted into a joining opening exhibiting joining tool and a joining square mandrel through the square opening (3) is driven over the joining opening, whereby the nut lever ( 5), the bearing sections (6, 7, 8) and the Sicherungsbzw. Bearing discs (9, 10) are joined by the material of the joining projections (28, 29).

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