DE2916233C2 - Central lock with electrically operated locking device - Google Patents

Description

a) that with a central case lock everyone Central locking bar (28, 29) has its own Actuating handle (37) is assigned, each of which has a wedge surface (35) via a wedge surface (36) a pressure piece (33) is applied;

b) that with each pressure piece (33) one to the central locking rods (28, 29) in the one-sided Cushioned clearance standing, the opposing locking parts (48) catching like a fall Adjacent carriage (39) containing a spring-loaded ejector plate (43);

c) that each central locking bar (28,29) one Has bolt opening (30), both bolt openings (30) in the basic position of Complete the central locking rods to create a bolt opening according to the overlapping layer, in which the locking pin (16) retracts when only one coding signal is input and from which it can be withdrawn by entering the entire key secret;

d) that the extensibility of the locking pin (16) is only possible when the case position control switch is in operation (20) is possible.

2. Central lock according to claim I, characterized in that the locking pin (16) on one The threaded spindle (15) runs, which extends the shaft of a pole-changing electric motor (14) represents and turns into a rotation lock wing

(17) continues, the free end of which the switching cam so

(18) of a limit switch (19) forms.

55

The invention relates to a central lock according to the preamble of claim 1.

Such a central lock is known from DEOS 2514 178, the two opposing displaceable Zenlral locking rods is assigned an electromagnetically driven locking pin. In the locked position, this enters a bolt opening of a central locking rod while leaving a clearance a. The switching rod of the electromagnetically operated locking pin is carried out by Electric switch. If the correct key secret is entered by pressing the same and you with a lock cylinder assigned to the central locking rods this moves, according to the Clearance a certain displacement of the central locking rods possible, with one within this Clearance-way lying switch is operated, which then with correctly entered key secret electromagnetic retraction of the locking pin triggers. In the reverse movement of the Another switch ensures that the locking pin is back into the locking bar opening retracts The disadvantage arises that with forces exerted on the central locking rods and with in The locking pin located in the locking position puts a considerable strain on the sensitive central locking components will. Furthermore, it is not possible in this embodiment, the lid or the door by means of a single coding signal to be able to immediately bring it back into the locked position.

Also from US-PS 40 94 392 a case central lock known with keyless locking device, which with correctly set key secret and with the case layer contact switch closed, the case lid can be opened by manual operation two central locking rods movable in opposite directions to one another enables these Suitcase position control switches are gravity-dependent pawls in such a way that everyone Central locking rods such is assigned. Furthermore, the case central locking device contains a combination lock, the displacement constraining forces exerted on the central locking rods being relatively sensitive The rocker component of the combination lock work. The object of the invention is the object based on creating a central lock of the type required for suitcases and the mechanical and to couple electrical components so that in addition to achieving a favorable mode of operation in the Actuating forces introduced by the mechanics are not transferred to the sensitive electrical components. This task is achieved by the combination of features solved according to the characterizing part of claim 1

As a result of such a configuration, a central lock is created, which is particularly suitable for use on suitcases. In order to be able to open the case lid, it is not only necessary to have the right one Enter opening coding, but the case must also be placed in the appropriate position will. Only then can the electrically driven locking pin move the locking openings in the opposite direction leave central locking rods moving towards one another. So are the two aforementioned conditions for Satisfied opening of the case lid, the operating handle can be printed, which over the Pressure pieces release the slide locking the opposing locking parts. The arranged in these Spring-loaded ejector plates bring the case lid immediately after releasing the counter-locking parts in the gap-open position and prevent that after releasing the operating handle again the Closed position occurs. The opposite direction of the central locking rods has the advantage that over the operating handle initiated opening forces cancel each other out, so that any on The loading forces occurring in the locking pin do not damage the mechanics. A destruction the central locking device is also prevented if the central locking rods are blocked. e.g. by means of a single coding signal hcrvorgeru-

fen, brought the opened pimple into the locked position will. In this case, the counter-locking parts only act on the slides and those in them provided ejector plates, which parts are locked after closing the case lid kick the counter locking parts.

The dependent claim relates to an advantageous development of the subject matter of claim 1, by This is shown that the locking pin is practically as on the threaded spindle of the electric motor running nut is formed It can be a relatively Realize a large cross-section of the locking pin and thus a considerable shear stability. The relative thin dimensioned threaded spindle of the electric motor is protected according to this arrangement because it is at ts Breaking forces are not loaded on bending or the like.

An exemplary embodiment of the invention is described below with reference to FIGS. 1-6 illustrated show

F i g. 1 shows a perspective view of a briefcase equipped with the central locking device.

F i g. 2 shows a longitudinal section through the briefcase with the central locking device shown in a view receiving box, FIG. 3 shows the section along the line III-III in FIG. 2,

F i g. 4 shows a partial longitudinal section through the briefcase on a natural scale from the slide captured counter locking part,

F i g. 5 one in the plane of the counter-locking part lying partial section through the briefcase with the case lid closed and

FIG. 6 shows a representation corresponding to FIG. 5, however, when the case lid is closed, the locking pin blocking the central locking rods

The briefcase shown has the case 1 and the case lid 2. The case front wall 3 carries two handle brackets 4, which hold the case handle 5, in a symmetrical arrangement. A housing-like box K extends on the inside of the box front wall 3. This box is equipped with screw-on sockets 6, the longitudinal slots 7 of which are penetrated by case handle fastening screws 8 which pull the handle brackets 4 against the outer surface of the box front wall 3.

A cover 9 extends between the box K and the box front wall 3, from which a collar 10 extends in the center and penetrates the box front wall 3. The collar 10 is covered by a frame 11 which contains four buttons 12 lying next to one another

These in turn are provided with the numbers 1 to 4, see FIG. 1. The frame II takes one Connection plate 13, which via lines, not shown, with a closing combination containing The electronic board is connected.

A pole-changing electric motor 14 is housed in the box K. The extension of the shaft of the electric motor 14 forms a threaded spindle 15 on which the locking pin 16, which is circular in cross section, runs. An anti-rotation wing 17 extending radially from the locking pin 16 forms a switching cam 18 at the end for a limit switch 19 located in the box K.

A case position control switch 20 extends next to the electric motor 14. The t >> electrical device is fed by the batteries 21 and 22 housed in a compartment of the box K , the battery 22 being able to serve as a replacement battery. A light-emitting diode 51 provided on the frame 11 provides information about the state of charge of the batteries 21, 22,

The electrical system can also be fed from the outside, as shown in FIG. 5. This is done if, for whatever reason, both batteries 21 and 22 should be empty. For this purpose, the line cables of an external exciter, not shown, are inserted through openings 23 in the case side wall 24, act on the contact plates 25 of the box K and supply the electrical device with energy.

The box longitudinal wall 26 facing the case lid 2 is double-walled. By doing Central locking rods which can be displaced in opposite directions extend between the space 27 of the longitudinal box wall 26 28 and 29. The same are in the facing material enlarged areas with bolt openings 30 equipped which are dimensioned so large that the locking pin 16 can engage in them. With An opening 31 in the box longitudinal wall 26 is aligned with the latter.

The central locking _{rods 28 v} <nd 29 are coupled via pins 32 with pressure gaps 33. Web 34 of the box K and the longitudinal box wall 26 serve to guide the pressure pieces 33 3 enforce. Inner shutters 38 'interact with stops 37' of the actuating handles 37 and prevent the actuating handles 37 from falling out of the frame slots 38.

A slide 39 guided by the web 34 and the longitudinal box wall 26 is supported on each pressure piece 33. This has a rectangular plan and is pot-shaped. A centering pin 41 for a compression spring 42 which is supported on the box K and which acts on the carriage 39 in the direction of the pressure piece 33, which in turn shifts the actuation handle 37 into its end position, extends from the pot wall 40 opposite the pressure piece 33, in which it moves with its outer end of the box front wall 3 protrudes.

An ejector plate 43 is guided in the interior of the slide 39. This extends up to the upper edge R of the pot wall of the slide 39, cf. in particular the dash-dotted illustration in FIG. A compression spring 44 is supported on the pot wall 45 of the slide 39 and loads the ejector plate 43 transversely to the displacement path of the slide.

The pot wall 46 opposite the pot wall 45 extends only approximately up to half the height and forms in the Berehh its one end zone a trap-like beveled tooth 47 to catch the on the case lid 2 attached Gegwischlosteils 48 from. DL corresponding The face of the counter-locking part is also equipped with a trap-like bevel 49 you downstream is a locking recess 50 for the tooth 47 of the Schlit.ens 39.

The corresponding longitudinal box wall 26 with the entry openings is at the entry of the counter-closing parts 48 52 provided.

Should the case lid 2 from its in de F i g. 2 and 3 are opened, the BctatigUügshandhaocn 37 are to act. These move their turn the Druckstückc 33. which the

Take slide 39 with you. As soon as the teeth 47 of the slide .39 the Schlicßausnehi; hung 50 of the locking parts 48, the loaded ejector plates can go into action, which the initiate opening of the case lid 2. The move the Druckstiicke .33 is possible because the central locking rods 28, 29 are not through the Lock pin 16 are locked.

Starting from the position according to FIG. 2 and J I press a key 12, this becomes a Encoding signal generated, whereupon the locking pin 16 into the locking openings 30 of the Central locking rods 28 and 29 drive in. It can then no displacement of the pressure pieces 33 and so that the slide 39 can be reached via the actuation handle 37. To then open the case lid 2 to the correct opening coding is required. However, this only leads to an actuation of the

rests, since then the case position control switch 20 closes the circuit. So the case cover cannot be used when the case is upright or upside down opened, which increases the security of use.

If the case lid 2 is open and a single signal causes the locking pin 16 to move into the blocking position, as in Fig. 6 indicated, can nevertheless be used Close the case lid. The counter-locking parts 48 act exclusively here the carriage 39 and the ejector plates 4.3. On the pressure pieces 33 and central locking rods no burden exerted. The spring-loaded ejector plates 43 also have the advantage of one muffled closing.

The Sperruni '^ pin 16 extends in a Blocking position in the opening 31 of the box longitudinal wall 26 and thereby receives a support. at When only one actuating handle 37 is applied, the loads from the box longitudinal wall 26 are reduced recorded. If, on the other hand, both actuating handles are pressed into the locking position, the lift

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In cases, externally introduced loading forces acting on the actuating handles are not transferred to the electric motor 14 itself.

For this purpose 4 sheets of drawings

Claims (1)

Claims; 1, central lock with electrically operated locking device such that the key secret is entered by means of individual coding signals to be triggered by electric switches, wherein with correctly entered key secret from a bolt opening of a central locking rod in the release position controlled, electrically driven locking pin is provided, which is close of the two central locking rods that can be moved in opposite directions by external actuation is and electric switch-controlled retracts into the bolt opening, in this locking division every central locking rod and its external actuation is blocked against movement, characterized by the following overall combination of features: